Electric tool

Abstract

The invention relates to an electric tool which comprises a machine shell and a locking assembly, the machine shell is provided with a battery pack installation part, the battery pack installation part is detachably connected with a battery pack, and the battery pack is configured to provide electric energy for the electric tool; the locking assembly comprises a spring bolt, a spring bolt receiving part and a triggering piece. The spring bolt and the trigger piece are movably arranged on one of the machine shell and the battery pack, and the spring bolt receiving part is arranged on the other one of the machine shell and the battery pack. The spring bolt is jointed with the spring bolt receiving part, so that the battery pack is locked relative to the shell; and the spring bolt is separated from the spring bolt receiving part, so that the battery pack is unlocked relative to the shell. And the electric tool is configured to directly or indirectly drive the spring bolt to move relative to the spring bolt receiving part through at least two different actions generated by the triggering piece when external force is applied to the triggering piece, so that the battery pack is unlocked relative to the shell. The number of the triggering pieces is configured to be at least two.

Description

Technical Field

[0001] The invention relates to an electric tool. Background Art

[0002] Compared with fuel-powered tools, electric tools are environmentally friendly and clean, and they also produce relatively less noise. Therefore, electric tools are increasingly favored by power tool users. Electric tools are powered by battery packs, which often have a short battery life. Therefore, in order to improve work efficiency, battery packs are usually configured to be detachable from the electric tool so that they can be replaced when the battery is low.

[0003] The electric tool usually includes a battery pack mounting portion, and the battery pack is detachably mounted on the battery pack mounting portion. In order to prevent the battery pack from detaching from the electric tool and causing harm to people or animals around, or damage to objects, there are great safety hazards when the electric tool is used. For this reason, in the related art, an interlocking mechanism is provided between the battery pack and the housing of the electric tool, and the interlocking mechanism is usually unlocked by applying an unlocking action to the battery pack unlocking key to unlock the battery pack. Summary of the invention

[0004] Based on this, it is necessary to provide an electric tool that can at least prevent the battery pack from being unlocked due to accidental touch, reduce the risk of the battery pack being abnormally detached from the electric tool, and improve the safety of the electric tool when in use.

[0005] The present invention provides an electric tool, comprising: a housing, provided with a battery pack installation portion, the battery pack installation portion being detachably connected to the battery pack, the battery pack being configured to provide electric energy to the electric tool; a locking assembly, comprising a lock tongue, a lock tongue receiving portion and a trigger; the lock tongue and the trigger are movably arranged on one of the housing and the battery pack, and the lock tongue receiving portion is arranged on the other of the housing and the battery pack; the lock tongue is engaged with the lock tongue receiving portion to lock the battery pack relative to the housing; the lock tongue is disengaged from the lock tongue receiving portion to unlock the battery pack relative to the housing; the electric tool is configured such that an external force is applied to the trigger member, at least two different actions generated by the trigger member directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion, and the number of the trigger members is configured to be one or more; in a direction perpendicular to the insertion direction of the battery pack, one of the trigger members or the plurality of trigger members are configured to be located on one side of the battery pack.

[0006] The present invention provides an electric tool, comprising: a housing, provided with a battery pack installation portion, the battery pack installation portion being detachably connected to the battery pack, the battery pack being configured to provide electric energy to the electric tool; a locking assembly, comprising a lock tongue, a lock tongue receiving portion and a trigger; the lock tongue and the trigger are movably arranged on one of the housing and the battery pack, the lock tongue receiving portion being arranged on the other of the housing and the battery pack; the lock tongue is engaged with the lock tongue receiving portion to lock the battery pack relative to the housing; the lock tongue is disengaged from the lock tongue receiving portion to unlock the battery pack relative to the housing; The electric tool is configured such that an external force is applied to the trigger member, and at least two different actions generated by the trigger member directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion, and the number of the trigger members is configured to be one or more; the battery pack includes a battery pack shell, and the battery pack shell extends along three orthogonal spatial directions (x, y, z) in the directions of the width axis W, the thickness axis T, and the height axis H of the battery pack shell, and the battery pack shell includes a width extending on the width axis W, a thickness extending on the thickness axis T, and a height extending on the height axis H;

[0007] One or more of the trigger members are located on one side of a plane perpendicular to the thickness axis and passing through the midpoint of the thickness; or one or more of the trigger members are located on one side of a plane perpendicular to the width axis and passing through the midpoint of the width.

[0008] The present invention provides an electric tool, comprising: a housing, provided with a battery pack mounting portion, the battery pack mounting portion being detachably connected to the battery pack, the battery pack being configured to provide electric energy to the electric tool; a locking assembly, comprising a locking tongue, a locking tongue receiving portion and a trigger; the locking tongue and the trigger are movably arranged on one of the housing and the battery pack, and the locking tongue receiving portion is arranged on the other of the housing and the battery pack; the locking tongue is engaged with the locking tongue receiving portion to lock the battery pack relative to the housing; the locking tongue is disengaged from the locking tongue receiving portion to unlock the battery pack relative to the housing;

[0009] The electric tool is configured such that an external force is applied to the trigger member, and at least two different actions generated by the trigger member directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion; the battery pack includes a battery pack housing, and the battery pack housing extends along three orthogonal spatial directions (x, y, z) in the directions of the width axis W, the thickness axis T, and the height axis H of the battery pack housing, and the battery pack housing includes a width extending on the width axis W, a thickness extending on the thickness axis T, and a height extending on the height axis H;

[0010] All of the trigger members are located on one side of a plane perpendicular to the thickness axis and passing through the midpoint of the thickness; or

[0011] All of the trigger members are located on one side of a plane perpendicular to the width axis and passing through the midpoint of the width.

[0012] The present invention provides an electric tool, comprising: a housing, provided with a battery pack installation portion, the battery pack installation portion can be inserted and connected to a battery pack, the battery pack is configured to provide electric energy to the electric tool; a locking assembly, comprising a lock tongue, a lock tongue receiving portion and a trigger; the lock tongue and the trigger are movably arranged on one of the housing and the battery pack, and the lock tongue receiving portion is arranged on the other of the housing and the battery pack; the lock tongue is engaged with the lock tongue receiving portion to lock the battery pack relative to the housing; the lock tongue is disengaged from the lock tongue receiving portion to unlock the battery pack relative to the housing; the electric tool is configured such that an external force is applied to the trigger member, and at least two different actions generated by the trigger member directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion, and the number of the trigger members is configured to be one or more;

[0013] The battery pack includes a battery pack shell, which includes a first outer contour surface and a second outer contour surface, the first outer contour surface and the second outer contour surface are arranged relative to each other in a direction perpendicular to the insertion direction of the battery pack, at least a portion of the lock tongue or the lock tongue receiving portion is arranged on the first outer contour surface, and one or more of the trigger members are located on one side of the second outer contour surface.

[0014] The present invention provides an electric tool, comprising: a housing, a battery pack installation portion, the battery pack installation portion can be inserted and connected to a battery pack, and the battery pack is configured to provide electric energy to the electric tool; a locking assembly, comprising a lock tongue, a lock tongue receiving portion and a trigger; the lock tongue and the trigger are movably arranged on one of the housing and the battery pack, and the lock tongue receiving portion is arranged on the other of the housing and the battery pack; the lock tongue is engaged with the lock tongue receiving portion to lock the battery pack relative to the housing; the lock tongue is disengaged from the lock tongue receiving portion to lock the battery pack relative to the housing The casing is unlocked; the electric tool is configured such that an external force is applied to the trigger member, and at least two different actions generated by the trigger member directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion; the battery pack includes a battery pack shell, the battery pack shell includes a first outer contour surface and a second outer contour surface, the first outer contour surface and the second outer contour surface are arranged relative to each other in a direction perpendicular to the insertion direction of the battery pack, at least a portion of the lock tongue or the lock tongue receiving portion is arranged on the first outer contour surface, and the entire trigger member is located on one side of the second outer contour surface.

[0015] The present invention provides an electric tool, comprising a casing, provided with a battery pack installation portion, wherein the battery pack installation portion can be inserted and connected to a battery pack, and the battery pack is configured to provide electric energy to the electric tool; a locking assembly, comprising a lock tongue, a lock tongue receiving portion and a trigger member; the lock tongue and the trigger member are movably arranged on one of the casing and the battery pack, and the lock tongue receiving portion is arranged on the other of the casing and the battery pack; the lock tongue is engaged with the lock tongue receiving portion to lock the battery pack relative to the casing; the lock tongue is disengaged from the lock tongue receiving portion to unlock the battery pack relative to the casing; the trigger member is only arranged with one, and the electric tool is configured such that an external force is applied to the trigger member, and at least two different actions generated by the trigger member directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion.

[0016] In one embodiment, the at least two different actions include an action generated by the trigger member, which realizes the movement of the trigger member and the battery pack is not unlocked relative to the casing; and another action generated by the trigger member, which realizes the movement of the trigger member and drives the lock tongue to move, so that the battery pack is unlocked relative to the casing.

[0017] In one of the embodiments, an action generated by the trigger member realizes a first travel trajectory of the trigger member; another action generated by the trigger member realizes a second travel trajectory of the trigger member that is different from the first travel trajectory; the first travel trajectory and the second travel trajectory of the trigger member are not on the same straight line, or the first travel trajectory and the second travel trajectory of the trigger member move in different directions.

[0018] In one embodiment, one action generated by the trigger member realizes a first travel trajectory of the trigger member; another action generated by the trigger member realizes a second travel trajectory of the trigger member that is different from the first travel trajectory; the power tool is configured to unlock the battery pack relative to the housing based on at least the first travel trajectory and the second travel trajectory.

[0019] In one embodiment, the number of the trigger members is only one, and the first travel trajectory and the second travel trajectory are generated by the successive movements of the same trigger member; or the number of the trigger members is configured to be at least two, and the first travel trajectory and the second travel trajectory are generated by the movements of different trigger members.

[0020] In one embodiment, the at least two different actions include an action generated by the trigger member, which realizes the movement of the trigger member and the lock tongue does not move; and another action generated by the trigger member, which realizes the movement of the trigger member and drives the lock tongue to move out of the lock tongue receiving portion.

[0021] In one embodiment, there is only one trigger member, and an action generated by one of the trigger members causes the trigger member to move, and the battery pack is not unlocked relative to the housing; and another action generated by one of the trigger members causes the trigger member to move and drive the lock tongue to move out of the lock tongue receiving portion.

[0022] In one embodiment, there is only one trigger member, and the at least two different actions are sequentially generated on the same trigger member.

[0023] In one embodiment, the locking assembly further includes a lock tongue linkage, and one action of the trigger member enables the lock tongue to be in a position allowing movement; another action of the trigger member enables the lock tongue linkage member to move and drives the lock tongue to move relative to the lock tongue receiving portion.

[0024] In one embodiment, the trigger member also includes a first trigger member, and an inhibitory member for locking the first trigger member, the inhibitory member includes a first position and a second position that moves relative to the housing; in the first position, the inhibitory member does not allow the first trigger member to drive the lock tongue to move; in the second position, the first trigger member can drive the lock tongue to move.

[0025] In one of the embodiments, one action generated by the trigger member is configured as a motion trajectory generated by the inhibitory member, and another action generated by the trigger member is configured as a motion trajectory generated by the first trigger member; the motion trajectory generated by the inhibitory member enables the inhibitory member to move from the first position to the second position to allow the first trigger member to drive the lock tongue to move; the motion trajectory generated by the first trigger member enables the first trigger member to drive the lock tongue to disengage from the lock tongue receiving portion.

[0026] In one embodiment, the trigger member includes a first trigger member and a second trigger member, and the lock tongue includes a first lock tongue and a second lock tongue that move independently of each other, the first trigger member is configured to drive the first lock tongue to move, and the second trigger member is configured to drive the second lock tongue to move.

[0027] In one embodiment, the first trigger member and the second trigger member are independent of each other.

[0028] In one embodiment, an action generated by the first trigger member is configured as a motion trajectory generated by the first trigger member, so that the first trigger member drives the first lock tongue to disengage from the lock tongue receiving portion, and another action generated by the second trigger member is configured as a motion trajectory generated by the second trigger member, so that the second trigger member drives the second lock tongue to disengage from the lock tongue receiving portion.

[0029] In one of the embodiments, the trigger member includes a first trigger member and a second trigger member, and the lock tongue is only provided with one. The locking assembly also includes a first movable member and a second movable member that move independently of each other, and the first movable member and the second movable member respectively include a locking position and an unlocking position. The first trigger member is configured to drive the first movable member to move between the locking position and the unlocking position, and the second trigger member is configured to drive the second movable member to move between the locking position and the unlocking position. When at least one of the first movable member and the second movable member is in the locking position, the lock tongue engages with the lock tongue receiving portion; when both the first movable member and the second movable member are in the unlocking position, the lock tongue disengages from the lock tongue receiving portion.

[0030] In one embodiment, one action generated by the trigger member is configured as the movement of the first trigger member, so as to drive the first movable member to move to the unlocked position; another action generated by the trigger member is configured as the movement of the second trigger member, so as to drive the second movable member to move to the unlocked position.

[0031] In one embodiment, all of the trigger members and all of the locking tongues are located on one side of a plane perpendicular to the thickness axis and passing through the midpoint of the thickness; or

[0032] All of the trigger members and all of the locking tongues are located on one side of a plane perpendicular to the width axis and passing through the midpoint of the width.

[0033] In one embodiment, all of the trigger members, all of the lock tongues, and all of the lock tongue receiving portions are located on one side of a plane that is perpendicular to the thickness axis and passes through the midpoint of the thickness; or

[0034] All of the trigger members, all of the lock tongues, and all of the lock tongue receiving portions are located on one side of a plane that is perpendicular to the width axis and passes through the midpoint of the width.

[0035] In one embodiment, all of the trigger members and all of the locking tongues are located on one side of the second outer contour surface.

[0036] In one embodiment, all of the trigger members, all of the lock tongues, and all of the lock tongue receiving portions are located on one side of the second outer contour surface.

[0037] In one of the embodiments, the lock tongue and the trigger are both movably disposed on the housing, the lock tongue receiving portion is both disposed on the battery pack, there is only one lock tongue receiving portion, and the lock tongue receiving portion is configured to engage with at least one of the lock tongues.

[0038] In one embodiment, the battery pack further includes a battery pack pole seat, which includes a plurality of terminals electrically connected to the power tool, and in a direction perpendicular to the insertion direction of the battery pack, the battery pack pole seat is arranged close to the first outer contour surface and far away from the second outer contour surface.

[0039] In one embodiment, the electric tool is a chain saw, which includes: a cutting assembly installed on the housing, the cutting assembly including a guide plate and a saw chain arranged around the guide plate, the guide plate providing support and guidance for the saw chain; and a top handle for a user to hold; the cutting assembly is arranged on the front side of the housing in the length extension direction of the chain saw; the battery pack mounting portion is arranged on the rear side of the housing in the length extension direction of the chain saw; and the top handle is arranged above the housing in the height extension direction of the chain saw.

[0040] In one embodiment, the electric tool is configured to drive the same locking tongue to move the first moving stroke and the second moving stroke successively based on the force applied to the trigger member from the outside; or, to drive the two locking tongues to move the first moving stroke and the second moving stroke respectively based on the force applied to the trigger member from the outside.

[0041] In one embodiment, the lock tongue and the trigger member are arranged on the housing, and the lock tongue receiving portion is arranged on the battery pack; or

[0042] The lock tongue and the trigger member are arranged on the battery pack housing, and the lock tongue receiving portion is arranged on the housing.

[0043] In one of the embodiments, the battery pack mounting portion allows the battery pack to be inserted and connected, and in a direction perpendicular to the battery pack insertion direction, a straight-line distance between the first trigger member and the second trigger member is no more than 12 cm.

[0044] In one embodiment, the trigger member is movably arranged relative to the lock tongue linkage member and can abut against the lock tongue linkage member.

[0045] In one embodiment, the lock tongue linkage piece is movably arranged relative to the lock tongue and can abut against the lock tongue; or, the lock tongue linkage piece is relatively fixedly connected to the lock tongue.

[0046] In one embodiment, the inhibitor is movably arranged relative to the housing; in the locked state, the inhibitor locks the trigger or blocks the operating end of the trigger to prevent the trigger from moving the lock tongue.

[0047] In one embodiment, the first trigger member is directly connected to, or indirectly connected to, or abuts against the first locking tongue; the second trigger member is directly connected to, or indirectly connected to, or abuts against the second locking tongue.

[0048] The present invention provides an electric tool, comprising: a housing, provided with a battery pack mounting portion, the battery pack mounting portion being detachably connected to the battery pack, the battery pack being configured to provide electric energy to the electric tool; a locking assembly, comprising a lock tongue, a lock tongue receiving portion and a trigger member, the trigger member acting on the lock tongue and driving the lock tongue to move; the character is characterized in that the lock tongue and the trigger member are movably arranged on one of the housing and the battery pack, the lock tongue receiving portion being arranged on the other of the housing and the battery pack; the lock tongue is engaged with the lock tongue receiving portion to lock the battery pack relative to the housing; the lock tongue is disengaged from the lock tongue receiving portion to unlock the battery pack relative to the housing; the electric tool is configured such that an external force is applied to the trigger member, at least two different actions generated by the trigger member directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion, the trigger member comprising a first trigger member and a second trigger member;

[0049] The battery pack includes a battery pack housing, the battery pack housing extending in three orthogonal spatial directions (x, y, z) in the directions of a width axis W, a thickness axis T, and a height axis H of the battery pack housing, the battery pack housing including a width extending on the width axis W, a thickness extending on the thickness axis T, and a height extending on the height axis H;

[0050] The first trigger member and the second trigger member are both located on one side of a plane perpendicular to the thickness axis and passing through the midpoint of the thickness; or the first trigger member and the second trigger member are both located on one side of a plane perpendicular to the width axis and passing through the midpoint of the width.

[0051] The present invention provides an electric tool, comprising: a housing, provided with a battery pack installation portion, wherein the battery pack installation portion can be inserted and connected to a battery pack, and the battery pack is configured to provide electric energy to the electric tool; a locking assembly, comprising a lock tongue, a lock tongue receiving portion, and a trigger member; the lock tongue and the trigger member are movably arranged on one of the housing and the battery pack, and the lock tongue receiving portion is arranged on the other of the housing and the battery pack; the lock tongue is engaged with the lock tongue receiving portion to lock the battery pack relative to the housing; the lock tongue is disengaged from the lock tongue receiving portion to unlock the battery pack relative to the housing;

[0052] The electric tool is configured such that an external force is applied to the trigger member, and at least two different actions generated by the trigger member directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion, and the trigger member includes a first trigger member and a second trigger member; the battery pack includes a battery pack shell, and the battery pack shell includes a first outer contour surface and a second outer contour surface, the first outer contour surface and the second outer contour surface are arranged relative to each other in a direction perpendicular to the insertion direction of the battery pack, at least a portion of the lock tongue or the lock tongue receiving portion is arranged on the first outer contour surface, and the first trigger member and the second trigger member are both located on one side of the second outer contour surface.

[0053] The present invention provides an electric tool, comprising: a housing, provided with a battery pack mounting portion, the battery pack mounting portion being detachably connected to the battery pack, the battery pack being configured to provide electric energy to the electric tool; a locking assembly, comprising a lock tongue, a lock tongue receiving portion and a trigger member, the trigger member acting on the lock tongue and driving the lock tongue to move; characterized in that the lock tongue and the trigger member are movably arranged on one of the housing and the battery pack, and the lock tongue receiving portion is arranged on the other of the housing and the battery pack; the lock tongue is engaged with the lock tongue receiving portion to lock the battery pack relative to the housing; the lock tongue is disengaged from the lock tongue receiving portion to unlock the battery pack relative to the housing;

[0054] The electric tool is configured such that an external force is applied to the trigger member, and at least two different actions generated by the trigger member directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion. The trigger member includes a first trigger member and a second trigger member; in a direction perpendicular to the insertion direction, the first trigger member and the second trigger member are both located on one side of the battery pack.

[0055] In one embodiment, the at least two different actions include an action generated by the first trigger member, which realizes the movement of the first trigger member, and the battery pack is not unlocked relative to the housing; and another action generated by the second trigger member, which realizes the movement of the second trigger member and drives the lock tongue to move, so that the battery pack is unlocked relative to the housing.

[0056] In one of the embodiments, the one action generated by the first trigger member realizes the first trigger member moving a first travel trajectory; the other action generated by the second trigger member realizes the first trigger member moving a second travel trajectory different from the first travel trajectory; the first travel trajectory and the second travel trajectory are not on the same straight line, or the first travel trajectory and the second travel trajectory move in different directions.

[0057] In one embodiment, an action generated by the first trigger member enables the first trigger member to move a first travel trajectory; another action generated by the second trigger member enables the second trigger member to move a second travel trajectory different from the first travel trajectory;

[0058] The electric tool is configured to unlock the battery pack relative to the housing based on at least the first travel trajectory and the second travel trajectory.

[0059] In one embodiment, the locking tongue includes a first locking tongue and a second locking tongue that move independently of each other, the first trigger member is configured to drive the first locking tongue to move, and the second trigger member is configured to drive the second locking tongue to move.

[0060] In one embodiment, an action generated by the first trigger member is configured as a motion trajectory generated by the first trigger member, so that the first trigger member drives the first lock tongue to disengage from the lock tongue receiving portion, and another action generated by the second trigger member is configured as a motion trajectory generated by the second trigger member, so that the second trigger member drives the second lock tongue to disengage from the lock tongue receiving portion.

[0061] In one of the embodiments, the trigger member includes a first trigger member and a second trigger member, and the lock tongue is only provided with one. The locking assembly also includes a first movable member and a second movable member that move independently of each other, and the first movable member and the second movable member respectively include a locking position and an unlocking position. The first trigger member is configured to drive the first movable member to move between the locking position and the unlocking position, and the second trigger member is configured to drive the second movable member to move between the locking position and the unlocking position. When at least one of the first movable member and the second movable member is in the locking position, the lock tongue engages with the lock tongue receiving portion; when both the first movable member and the second movable member are in the unlocking position, the lock tongue disengages from the lock tongue receiving portion.

[0062] In one embodiment, one action generated by the trigger member is configured as the movement of the first trigger member, so as to drive the first movable member to move to the unlocked position; another action generated by the trigger member is configured as the movement of the second trigger member, so as to drive the second movable member to move to the unlocked position.

[0063] In one embodiment, the trigger member further includes a first trigger member and a second trigger member for locking the first trigger member, and the second trigger member includes a first position and a second position that moves relative to the housing;

[0064] In the first position, the second trigger member does not allow the first trigger member to drive the lock tongue to move;

[0065] In the second position, the first trigger member can drive the locking tongue to move.

[0066] In one embodiment, one action generated by the trigger member is configured as a motion track generated by the second trigger member, and another action generated by the trigger member is configured as a motion track generated by the first trigger member;

[0067] The motion trajectory generated by the second trigger member enables the second trigger member to move from the first position to the second position, so as to allow the first trigger member to drive the lock tongue to move; the motion trajectory generated by the first trigger member enables the first trigger member to drive the lock tongue to disengage from the lock tongue receiving portion.

[0068] The present invention provides an unlocking method for a battery pack matched with an electric tool, the electric tool comprising: a housing and a locking assembly arranged on the housing, the housing being provided with a battery pack mounting portion, the battery pack mounting portion being provided for the battery pack to be inserted and connected, the battery pack being configured to provide electric energy to the electric tool; the locking assembly comprising a lock tongue, a lock tongue receiving portion and a triggering member, the lock tongue and the triggering member being movably arranged on one of the housing and the battery pack, the lock tongue receiving portion being arranged on the other of the housing and the battery pack, the unlocking method comprising at least the following steps:

[0069] Step 1: external force is applied to the trigger member, and the trigger member moves to generate a first travel trajectory, so that the battery pack is not unlocked relative to the housing;

[0070] Step 2: the external force is continuously applied to the trigger member, and the trigger member moves to generate a second travel trajectory, so that the trigger member moves and drives the lock tongue to move, and the second travel trajectory is different from the first travel trajectory;

[0071] The number of the triggering member is one and only one, and the triggering member in the first step and the second step is the same triggering member.

[0072] In one embodiment, in the second step, the trigger member drives the lock tongue to move, and the battery pack is unlocked relative to the housing.

[0073] In one embodiment, the trigger member moves in different directions on the first travel trajectory and the second travel trajectory, or the first travel trajectory and the second travel trajectory are not on the same straight line.

[0074] In one embodiment, the first travel trajectory and the second travel trajectory are generated by the sequential movement of the trigger member.

[0075] In one of the embodiments, the lock tongue and the trigger are both movably disposed on the housing, the lock tongue receiving portion is both disposed on the battery pack, there is only one lock tongue receiving portion, and the lock tongue receiving portion is configured to engage with at least one of the lock tongues.

[0076] In one embodiment, the electric tool is a chain saw, which includes: a cutting assembly installed on the housing, the cutting assembly including a guide plate and a saw chain arranged around the guide plate, the guide plate providing support and guidance for the saw chain; and a top handle for a user to hold; the cutting assembly is arranged on the front side of the housing in the length extension direction of the chain saw; the battery pack mounting portion is arranged on the rear side of the housing in the length extension direction of the chain saw; and the top handle is arranged above the housing in the height extension direction of the chain saw.

[0077] In one embodiment, the electric tool is a chain saw, and the chain saw comprises: a cutting assembly mounted on the housing, the cutting assembly comprising a guide plate and a saw chain arranged around the guide plate, the guide plate providing support and guidance for the saw chain; and a top handle for a user to hold; the cutting assembly is arranged on the front side of the housing in the length extension direction of the chain saw; the battery pack mounting portion is arranged on the rear side of the housing in the length extension direction of the chain saw; the top handle is arranged above the housing in the height extension direction of the chain saw;

[0078] The battery pack is inserted and installed into the battery pack installation portion in a manner that the first outer contour surface and the second outer contour surface of the battery pack are spaced and arranged opposite to each other along a first direction perpendicular to the plane where the guide plate is located, at least a portion of the lock tongue or the lock tongue receiving portion is arranged on the first outer contour surface, and one or more of the trigger members are located on one side of the second outer contour surface, or

[0079] The battery pack is inserted and installed into the battery pack mounting portion in a manner that the first outer contour surface and the second outer contour surface of the battery pack are spaced apart and arranged relative to each other along a second direction parallel to the plane where the guide plate is located, at least a portion of the lock tongue or the lock tongue receiving portion is arranged on the first outer contour surface, and one or more of the trigger members are located on one side of the second outer contour surface.

[0080] In one embodiment, the electric tool is a chain saw, and the chain saw includes: a cutting assembly mounted on the housing, the cutting assembly including a guide plate and a saw chain arranged around the guide plate, the guide plate providing support and guidance for the saw chain; there is an intermediate section parallel to the plane where the guide plate is located, and the battery pack is inserted and installed into the battery pack mounting portion in a manner that the first outer contour surface and the second outer contour surface of the battery pack are spaced and arranged relative to each other along a first direction perpendicular to the plane where the guide plate is located, at least a portion of the lock tongue or the lock tongue receiving portion is arranged on the first outer contour surface, and one of the trigger members or multiple trigger members are located on one side of the second outer contour surface, or

[0081] The battery pack is inserted and installed into the battery pack mounting portion in a manner that the first outer contour surface and the second outer contour surface of the battery pack are spaced apart and arranged relative to each other along a second direction parallel to the plane where the guide plate is located, at least a portion of the lock tongue or the lock tongue receiving portion is arranged on the first outer contour surface, and one or more of the trigger members are located on one side of the second outer contour surface.

[0082] The present invention provides an electric tool, comprising: a housing, the housing being provided with a battery pack installation portion, the battery pack installation portion being for the battery pack to be inserted and connected, the battery pack being configured to provide electric energy to the electric tool; a locking assembly, comprising a lock tongue, a lock tongue receiving portion and a trigger, the trigger being capable of driving the lock tongue to move relative to the lock tongue receiving portion; the lock tongue receiving portion comprising a first receiving portion and a second receiving portion arranged front and back in the insertion direction; the lock tongue being engaged with at least one of the first receiving portion and the second receiving portion, so that the battery pack is locked relative to the housing; the lock tongue being disengaged from the first receiving portion and the second receiving portion, so that the battery pack is unlocked relative to the housing;

[0083] The lock tongue and the trigger member are movably arranged on one of the housing and the battery pack, and the lock tongue receiving portion is arranged on the other of the housing and the battery pack.

[0084] In one embodiment, the battery pack includes a battery pack shell, which extends along three orthogonal spatial directions (x, y, z) in the directions of a width axis W, a thickness axis T, and a height axis H of the battery pack shell, and the battery pack shell includes a width extending on the width axis W, a thickness extending on the thickness axis T, and a height extending on the height axis H, and the trigger member and the lock tongue are both located on one side of a plane that is perpendicular to the thickness axis and passes through the midpoint of the thickness; or, the trigger member and the lock tongue are both located on one side of a plane that is perpendicular to the width axis and passes through the midpoint of the width.

[0085] In one of the embodiments, the battery pack includes a battery pack shell, the battery pack shell includes a first outer contour surface and a second outer contour surface that are spaced apart, the first outer contour surface and the second outer contour surface are relatively arranged in a direction perpendicular to the insertion direction of the battery pack, at least a portion of the lock tongue or the lock tongue receiving portion is arranged on the first outer contour surface, and the trigger member and the lock tongue are both located on one side of the second outer contour surface.

[0086] In one embodiment, the electric tool is configured to apply external force to the trigger member to drive the locking tongue to move a first stroke and a second stroke; the locking tongue moves the first stroke to disengage the locking tongue from the first receiving portion, and the battery pack is not unlocked relative to the housing; the locking tongue moves the second stroke to disengage the locking tongue from the second receiving portion, thereby unlocking the battery pack relative to the housing.

[0087] In one embodiment, external force is applied to the trigger member to drive the lock tongue to move the first moving stroke and the second moving stroke in sequence.

[0088] In one embodiment, the locking assembly includes only one locking tongue; the locking tongue engages with the first receiving portion to lock the battery pack in a first position relative to the housing; the locking tongue engages with the second receiving portion to lock the battery pack in a second position relative to the housing.

[0089] In one embodiment, the battery pack is electrically connected to the power tool only when the locking tongue is engaged with the first receiving portion.

[0090] In one embodiment, there is only one trigger member, and one trigger member drives the lock tongue to move the first stroke or the second stroke.

[0091] In one embodiment, the locking tongue and the trigger member are movably disposed on the housing, and the first receiving portion and the second receiving portion are disposed on the battery pack.

[0092] In one embodiment, the electric tool is a chain saw, which further includes: a cutting assembly installed on the housing, the cutting assembly including a guide plate and a saw chain arranged around the guide plate, the guide plate providing support and guidance for the saw chain; and a top handle for a user to hold; the cutting assembly is arranged on the front side of the housing in the length extension direction of the chain saw; the battery pack mounting portion is arranged on the rear side of the housing in the length extension direction of the chain saw; and the top handle is arranged above the housing in the height extension direction of the chain saw.

[0093] The present invention provides an electric tool, comprising: a casing, wherein the casing is provided with a battery pack mounting portion; a battery pack, which is detachably attached to the battery pack mounting portion and is used to provide electric energy to the electric tool, wherein the battery pack includes a battery pack shell; and a locking assembly, comprising a lock tongue, a lock tongue receiving portion and a trigger mechanism; the lock tongue and the trigger mechanism are movably arranged on one of the casing and the battery pack shell, wherein the lock tongue receiving portion is arranged on the other of the casing and the battery pack shell, wherein the lock tongue can engage with the lock tongue receiving portion to lock the battery pack relative to the casing; the trigger mechanism can act on the lock tongue and link the lock tongue to move, and the trigger mechanism is configured to: based on at least two unlocking actions applied to the trigger mechanism, control the lock tongue to disengage from the lock tongue receiving portion to unlock the battery pack relative to the casing.

[0094] In one embodiment, the unlocking action is configured as follows: a force is applied to the trigger mechanism and the trigger mechanism is enabled to generate a moving stroke; the at least two unlocking actions applied to the trigger mechanism include two unlocking actions with different directions of force applied to the trigger mechanism within at least part of the moving stroke, or two unlocking actions with the same direction of force and applied intermittently.

[0095] In one of the embodiments, the lock tongue receiving portion includes at least one stop space that can engage with the lock tongue and stop the lock tongue; applying the at least two unlocking actions to the trigger mechanism can drive the lock tongue to move and disengage from the stop space of the lock tongue receiving portion, thereby unlocking the battery pack relative to the casing.

[0096] In one embodiment, the trigger mechanism includes a trigger member and a lock tongue linkage member, and the lock tongue linkage member can drive the lock tongue to move; the at least two unlocking actions applied to the trigger mechanism include a first unlocking action and a second unlocking action, and the first unlocking action and the second unlocking action respectively cause the trigger mechanism to generate a first stroke and a second stroke;

[0097] The first stroke is configured to move the trigger member to a position where the lock tongue linkage can be triggered; the second stroke is configured to move the lock tongue linkage to drive the lock tongue to move until the lock tongue is disengaged from the lock tongue receiving portion, thereby unlocking the battery pack relative to the housing; the first stroke and the second stroke have different directions of the force applied to the trigger mechanism within at least part of the moving stroke.

[0098] In one embodiment, the first unlocking action and the second unlocking action are both applied to the trigger member;

[0099] The first stroke is configured to move the trigger member to abut against the bolt linkage member;

[0100] The second stroke is configured to cause the trigger member to move further and drive the lock tongue linkage member to move, and the lock tongue linkage member drives the lock tongue to move until the lock tongue is disengaged from the lock tongue receiving portion, so that the battery pack is unlocked relative to the housing.

[0101] In one embodiment, the lock tongue linkage is movably arranged relative to the lock tongue and can abut against the lock tongue.

[0102] In one embodiment, the lock tongue linkage is relatively fixedly connected to the lock tongue.

[0103] In one embodiment, the first unlocking action is applied to the trigger member, and the second unlocking action is applied to the bolt linkage member;

[0104] The first stroke is configured to move the trigger member to a state where the bolt linkage member is exposed or released from a blocked state;

[0105] The second stroke is configured to move the lock tongue linkage member to drive the lock tongue to move until the lock tongue is disengaged from the lock tongue receiving portion, so that the battery pack is unlocked relative to the housing.

[0106] In one embodiment, the locking assembly further includes a lock tongue elastic reset member, and the lock tongue elastic reset member acts on the lock tongue to apply a force to the lock tongue to move the lock tongue toward the lock tongue receiving portion.

[0107] In one of the embodiments, the lock tongue linkage is pivotally arranged on the housing or the battery pack housing around a first pivot, the lock tongue linkage includes a lock tongue abutment portion and a trigger member abutment portion, and the trigger member abutment portion and the lock tongue abutment portion pivot synchronously around the first pivot, the trigger member is movably arranged on the housing or the battery pack housing, and can move to abut against the trigger member abutment portion and drive the trigger member abutment portion to pivot around the first pivot, the lock tongue abutment portion is used to abut against the lock tongue and pivot with the trigger member abutment portion around the first pivot to drive the lock tongue to move in a direction away from the lock tongue receiving portion.

[0108] In one embodiment, the trigger mechanism further includes an elastic reset member of a trigger member, and the trigger member includes an initial position when the unlocking action is not applied to the trigger member, and the elastic reset member of the trigger member acts on the trigger member to apply a force to the trigger member to move the trigger member toward the initial position.

[0109] In one embodiment, the trigger member is pivotally connected to the housing or the battery pack housing around a second pivot, or the trigger member is pivotally connected to the lock tongue linkage member around a second pivot;

[0110] The first unlocking action is configured to flip the trigger member to pivot around the second pivot until it abuts against the lock tongue linkage member; the second unlocking action is configured to further push the trigger member to move the trigger member and drive the lock tongue linkage member to pivot around the first pivot, and the lock tongue linkage member drives the lock tongue to move until the lock tongue is disengaged from the lock tongue receiving portion, thereby unlocking the battery pack relative to the casing.

[0111] In one embodiment, the trigger member is pivotally connected to the trigger member abutment portion of the lock tongue linkage member about the second pivot.

[0112] In one embodiment, the trigger member elastic return member is a torsion spring clamped between the trigger member and the housing or the battery pack housing.

[0113] In one of the embodiments, the housing or the battery pack shell is provided with a trigger member installation slot, and the trigger member is installed at the trigger member installation slot and does not protrude from the housing or the battery pack shell.

[0114] In one of the embodiments, the trigger member mounting slot is provided with a limiting slot wall for limiting the movement range of the trigger member and a slot hole for the trigger member to extend into the housing or the battery pack housing so that the trigger member abuts against the lock tongue linkage member, and an operating gap is left between the end of the trigger member for applying the unlocking action and the trigger member mounting slot.

[0115] In one of the embodiments, the trigger member is guided and moved along a first direction by a guide structure; the first unlocking action is configured to press the trigger member to make it move along the first direction until it abuts against the lock tongue linkage member; the second unlocking action is configured to push the trigger member along the second direction to move the trigger member and drive the lock tongue linkage member to pivot around the first pivot axis, and the lock tongue linkage member drives the lock tongue to move until the lock tongue is disengaged from the lock tongue receiving portion, thereby unlocking the battery pack relative to the housing.

[0116] In one of the embodiments, the guide structure includes a guide block pivotally arranged around the first pivot and a guide groove arranged on the trigger member and matching with the guide block; the second unlocking action is configured to push the trigger member along the second direction, so that the trigger member pivots around the first pivot along with the guide block, and drives the lock tongue linkage member to pivot around the first pivot, and the lock tongue linkage member drives the lock tongue to move until the lock tongue is disengaged from the lock tongue receiving portion, so that the battery pack is unlocked relative to the casing.

[0117] In one embodiment, the trigger member elastic return member is a spring arranged between the guide block and the guide groove.

[0118] In one of the embodiments, a trigger member installation slot is provided on the housing or the battery pack shell, a limiting wall is provided at the trigger member installation slot, the trigger member is provided with a stop surface matching the limiting wall, and the limiting wall is used to stop the stop surface so that the trigger member moves in the first direction before leaving the stop front of the limiting wall and cannot move in the second direction.

[0119] In one of the embodiments, a guide wall is further provided on the housing or the battery pack housing, and the guide wall is used to guide the trigger member to move along the second direction.

[0120] In one embodiment, the trigger member includes a pressing surface substantially perpendicular to the first direction and a pushing surface substantially perpendicular to the second direction.

[0121] In one of the embodiments, a reset member installation portion is provided on the lock tongue, one end of the lock tongue elastic reset member is attached to the reset member installation portion, and the other end is abutted against the housing or the battery pack housing.

[0122] In one embodiment, the lock tongue and the trigger mechanism are arranged on the housing, and the lock tongue receiving portion is arranged on the battery pack; a through hole is provided on the housing for the lock tongue to extend into the battery pack mounting portion;

[0123] Alternatively, the lock tongue and the trigger mechanism are arranged on the battery pack housing, and the lock tongue receiving portion is arranged on the housing; and a through hole for the lock tongue to extend out is provided on the battery pack housing.

[0124] In one embodiment, the lock tongue receiving portion includes a lock slot or a lock hole provided on the housing or the battery pack housing.

[0125] In one of the embodiments, the lock tongue includes at least one convex portion, and the lock tongue receiving portion includes at least one concave portion. The convex portion of the lock tongue engages with the concave portion of the lock tongue receiving portion, so that the battery pack can be locked relative to the casing; the convex portion of the lock tongue disengages from the concave portion of the lock tongue receiving portion, so that the battery pack can be unlocked relative to the casing.

[0126] In one embodiment, the locking tongue includes one protrusion, and the locking slot includes one recess that cooperates with one protrusion; or, the locking tongue includes multiple protrusions, and the locking slot includes one or more recesses that cooperate with multiple protrusions.

[0127] In one of the embodiments, a sliding guide mechanism is provided between the battery pack and the battery pack mounting portion, and the sliding guide mechanism includes a slide groove and a slide rail cooperating with the slide groove guide. A slide groove is provided on one of the battery pack and the battery pack mounting portion, and a slide rail cooperating with the slide groove guide is provided on the other. The battery pack is movably connected to the battery pack mounting portion through the cooperation and guidance of the slide groove and the slide rail.

[0128] In one embodiment, the battery pack and the battery pack mounting portion include a plurality of groups of mating surfaces located on different sides of the battery pack, and the locking assembly is disposed on one group of the mating surfaces.

[0129] In one embodiment, the power tool is a chain saw.

[0130] In one embodiment, the chainsaw is a tree chainsaw, including a body, a cutting assembly, a main handle and the battery pack mounting portion, wherein the cutting assembly is arranged on the front side of the body, the battery pack mounting portion is arranged on the rear side of the body, and the main handle is arranged on the upper side of the body and located in front of the battery pack mounting portion.

[0131] In one embodiment, the main handle includes a main handle housing, the housing includes the main handle housing, and the locking assembly is at least partially disposed in the main handle housing.

[0132] In one embodiment, the tree chain saw further comprises an auxiliary handle, one end of the auxiliary handle is connected to the body, the other end of the auxiliary handle is connected to the main handle, and the auxiliary handle is located beside the body.

[0133] The power tool and the unlocking method of the battery pack connected to the power tool provided in the present application can at least prevent the battery pack from being unlocked due to accidental touch, reduce the possibility of the battery pack being abnormally detached from the power tool and harming people or objects around the working environment, effectively reduce safety hazards, and improve the safety of the power tool when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0134] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0135] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0136] Figure 1 A three-dimensional diagram of the overall structure of an electric tool according to an embodiment of the present application;

[0137] Figure 2 A partial structural perspective view of an electric tool according to an embodiment of the present application;

[0138] Figure 3 A partial structural front view of an electric tool according to an embodiment of the present application;

[0139] Figure 4 for Figure 2 The enlarged view of point B in the middle;

[0140] Figure 5 for Figure 3 The enlarged view of point A in the middle;

[0141] Figure 6 A partial structural cross-sectional view of an electric tool according to an embodiment of the present application when the locking assembly is in a first state;

[0142] Figure 7 A partial structural cross-sectional view of an electric tool according to an embodiment of the present application when the locking assembly is in a second state;

[0143] Figure 8 A partial structural cross-sectional view of an electric tool according to an embodiment of the present application when the locking assembly is in a third state;

[0144] Fig. 9 This is a schematic structural diagram of a locking assembly according to an embodiment of the present application;

[0145] Fig.10 This is a schematic structural diagram of a lock tongue and a lock tongue elastic reset member according to an embodiment of the present application;

[0146] Fig.11 A schematic diagram of the structure of an electric tool according to another embodiment of the present application when a battery pack is installed;

[0147] Fig.12A schematic diagram of the structure of an electric tool according to another embodiment of the present application when a battery pack is not installed;

[0148] Fig.13 A partial structural perspective view of an electric tool according to another embodiment of the present application;

[0149] Fig.14 A partial structural front view of an electric tool according to another embodiment of the present application;

[0150] Fig.15 for Fig.13 Enlarged view of point C in the middle;

[0151] Fig.16 for Fig.14 The enlarged view of point D in the middle;

[0152] Fig.17 A partial structural cross-sectional view of a power tool according to another embodiment of the present application when the locking assembly is in a first state;

[0153] Fig.18 A partial structural cross-sectional view of a power tool according to another embodiment of the present application when the locking assembly is in a second state;

[0154] Fig.19 A partial structural cross-sectional view of a power tool according to another embodiment of the present application when the locking assembly is in a third state;

[0155] Fig. 20 This is a schematic structural diagram of a locking assembly according to another embodiment of the present application;

[0156] Fig.21 This is a partial structural schematic diagram of a locking assembly according to another embodiment of the present application;

[0157] Fig. 22 This is a schematic structural diagram of a trigger member according to another embodiment of the present application at a first viewing angle;

[0158] Fig.23 This is a schematic structural diagram of a trigger member according to another embodiment of the present application at a second viewing angle;

[0159] Fig.24 A front view of the overall structure of a locking assembly of an electric tool in a first state according to another embodiment of the present application;

[0160] Fig.25 For this application Fig.24 Enlarged view of point E in the middle;

[0161] Fig.26 This is an enlarged view of a locking assembly in a second state according to yet another embodiment of the present application;

[0162] Fig. 27A top view of the overall structure of the electric tool according to another embodiment of the present application;

[0163] Fig.28 A rear view of the overall structure of the electric tool according to another embodiment of the present application;

[0164] Fig.29 A partial structural cross-sectional view of a power tool according to yet another embodiment of the present application;

[0165] Fig.30 for Fig. 27 The enlarged view of F in the middle;

[0166] Fig.31 for Fig.29 Enlarged view of G in the middle;

[0167] Fig.32 A partial structural cross-sectional view of a locking assembly of a power tool according to a third embodiment of the present application in a first state;

[0168] Fig.33 for Fig.32 The enlarged view of J in the middle;

[0169] Fig.34 An enlarged view of the locking assembly of the third embodiment of the present application in the second state;

[0170] Fig.35 An enlarged view of the locking assembly of the third embodiment of the present application in the second state;

[0171] Fig.36 A schematic diagram of the structure of a battery pack according to another embodiment of the present application;

[0172] Fig.37 A three-dimensional diagram of the overall structure of a power tool according to yet another embodiment of the present application;

[0173] Fig.38 This is a three-dimensional diagram of the overall structure of an electric hammer according to a fifth embodiment of the present application.

[0174] Fig.39 This is a schematic diagram of an unlocking component in accordance with a sixth embodiment of the present application;

[0175] Fig.40 This is a schematic diagram of an unlocking component according to a seventh embodiment of the present application. DETAILED DESCRIPTION

[0176] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0177] In order to reduce the possibility of the battery pack 2 being detached from the power tool, in the related art, an interlocking mechanism is usually provided between the battery pack 2 and the housing 1 of the power tool. The interlocking mechanism is usually unlocked by applying an unlocking action to an unlocking key of the battery pack 2 to unlock the battery pack 2. When the working environment is relatively complex, there is a greater risk of the battery pack 2 being unlocked due to accidental touch, especially in high-altitude working scenarios, such as working on a tree. The unlocking key of the battery pack 2 may be touched by a branch or the operator, causing the battery pack 2 to detach from the power tool, causing harm to people or animals around, or damage to objects, resulting in a greater safety hazard when the power tool is in use.

[0178] In order to solve the technical problem that the battery pack 2 of the power tool is easily unlocked by accidental touch, which in turn causes the battery pack 2 to be abnormally detached from the power tool, the present application provides a power tool that can effectively reduce the risk of the battery pack 2 being unlocked by accidental touch. The power tool of the present application can be a chain saw 100, an electric hammer 200, an electric drill, etc., but is not limited thereto. The present application is particularly suitable for power tools for aerial work, such as a chain saw 100 for working on trees. The power tool of the present application is described in detail below using the chain saw 100 as an example, but it should be noted that the power tool of the present application is not limited thereto.

[0179] Reference Figures 1 to 3 The electric tool comprises a housing 1 and a locking assembly 3. The housing 1 is provided with a battery pack mounting portion 101, and the battery pack mounting portion 101 is detachably connected to a battery pack 2, and the battery pack 2 is configured to provide power to the electric tool. The locking assembly 3 comprises a locking tongue 31, a locking tongue receiving portion 32 and a trigger member 33 (also referred to as a trigger mechanism).

[0180] The lock tongue 31 and the trigger member 33 are movably disposed on one of the housing 1 and the battery pack 2, and the lock tongue receiving portion 32 is disposed on the other of the housing 1 and the battery pack 2. The lock tongue 31 is engaged with the lock tongue receiving portion 32 to lock the battery pack 2 relative to the housing 1; the lock tongue 31 is disengaged from the lock tongue receiving portion 32 to unlock the battery pack 2 relative to the housing 1. Specifically, the lock tongue 31 and the trigger member 33 are movably disposed on the housing 1, and the lock tongue receiving portion 32 is disposed on the battery pack 2; or, the lock tongue 31 and the trigger member 33 are movably disposed on the battery pack 2, and the lock tongue receiving portion 32 is disposed on the housing 1.

[0181] The electric tool is configured such that when an external force is applied to the trigger member 33, the trigger member 33 generates at least two different actions (also called unlocking actions) to directly or indirectly drive the lock tongue 31 to move relative to the lock tongue receiving portion 32, thereby unlocking the battery pack 2 relative to the housing 1. The number of the trigger member 33 is configured to be one or more.

[0182] It can be understood that the at least two different actions generated by the trigger member 33 are the actions generated by the trigger member 33 due to the external force applied to the trigger member 33, such as the movement of the trigger member 33 caused by the operator applying force to the trigger member 33. The trigger member 33 is the object to which the external force is applied, and of course the object to which the force is applied includes but is not limited to the operator, and can also be other objects to which the force is applied. The way of applying the force includes direct contact operation, indirect operation to transfer the force to the trigger member 33, etc., but is not limited thereto.

[0183] In some embodiments, when the trigger member 33 is configured as one, based on the external force applied to the trigger member 33, the trigger member 33 generates at least two different actions to directly or indirectly drive the lock tongue 31 to move relative to the lock tongue receiving portion 32, so as to unlock the battery pack 2 relative to the housing 1. In some embodiments, the trigger member 33 is configured as multiple, and based on the application of the external force, the multiple trigger members 33 generate at least two different actions to directly or indirectly drive the lock tongue 31 to move relative to the lock tongue receiving portion 32, so as to unlock the battery pack 2 relative to the housing 1. For example, the number of the multiple trigger members 33 can be two.

[0184] At least two different actions of the trigger member 33 are required to unlock the battery pack 2 relative to the housing 1, that is, a single action is not sufficient to unlock the battery pack 2 relative to the housing 1, and the external force that causes an accidental touch can usually only cause the trigger member 33 to produce a single action. Therefore, by unlocking the battery pack 2 relative to the housing 1 through at least two different actions of the trigger member 33, the risk of the battery pack 2 being unlocked due to an accidental touch can be effectively reduced.

[0185] Reference Fig.12 and Fig.15 The battery pack 2 includes a battery pack housing 201, and the battery pack housing 201 includes a first slide rail and a second slide rail arranged in parallel, which are used to guide the battery pack 2 to be inserted and connected to the power tool.

[0186] In one embodiment, one trigger member 33 or multiple trigger members 33 are all configured on one side of the battery pack 2. The trigger members 33 subjected to external force are all arranged on the same side of the battery pack 2. Optionally, the trigger member 33 and the lock tongue 31 are arranged on the housing 1, and the lock tongue receiving portion 32 is arranged on the battery pack 2. The battery pack housing 201 has a top and a bottom that are arranged oppositely, and a first side portion and a second side portion that are arranged oppositely, and the lock tongue receiving portion 32 is arranged on the top. The first slide rail and the second slide rail, the top and the bottom all extend along the insertion direction of the battery pack 2. One trigger member 33 or multiple trigger members 33 are all located on one side of the top or the bottom.

[0187] With such a design, on the one hand, when the operator unlocks the battery pack 2, the fingers only need to be operated in a limited area, which reduces the need for the operator to move the fingers over a large area when unlocking the battery pack 2, or when multiple fingers are required to operate, the fingers need to be spread apart over a large distance. The implementation scheme provided by this application is also more compact and has a more aesthetic appearance.

[0188] Considering that the straight-line distance between the multiple trigger members 33 dispersed on multiple sides is longer, it is more difficult for the operator to complete the unlocking of the battery pack 2 by relying on the fingers of one hand. If the operator is to be able to comfortably trigger multiple trigger members 33 (for example, two trigger members 33) by the fingers of one hand, there will inevitably be more stringent requirements on the size design of the battery pack 2. For example, the size of the battery pack 2 in the front-to-back direction or the size in the left-to-right direction should be as small as possible, so that the distance between the multiple trigger members 33 is shorter, which is convenient for the operator to perform the unlocking operation. This will inevitably restrict the design of the battery pack 2 and is not conducive to the expansion of the diversified design scenarios of the battery pack 2. In addition, for the implementation scheme in which only one trigger member 33 is set on the housing 1, only one lock tongue 31 can be set, and the structure is simpler. The lock tongue 31 can be directly engaged with the lock tongue receiving portion 32 of the existing battery pack 2 platform, which is more compatible with the existing battery pack 2 platform.

[0189] In one embodiment, if Figure 1 As shown, the battery pack housing 201 extends along three orthogonal spatial directions (x, y, z) in the directions of the width axis W, thickness axis T, and height axis H of the battery pack housing 201. The battery pack housing 201 includes a width extending on the width axis W, a thickness extending on the thickness axis T, and a height extending on the height axis H. One trigger member 33 or multiple trigger members 33 are located on one side of a plane P1 that is perpendicular to the thickness axis and passes through the midpoint of the thickness; or one trigger member 33 or multiple trigger members 33 are located on one side of a plane P2 that is perpendicular to the width axis and passes through the midpoint of the width.

[0190] It should be noted that the battery pack housing 201 extends in the direction of the width axis W, the thickness axis T, and the height axis H, wherein the battery pack housing 201 is not limited to a standard rectangular parallelepiped, and may be other irregular shapes, such as edge chamfers, partial surface depressions or protrusions, etc. The directions of the width axis W, the thickness axis T, and the height axis H are only used to illustrate the approximate extension direction of the battery pack housing 201. The width of the battery pack housing 201 is the line segment between the two outermost points on the two opposite surfaces of the battery pack 2 in the direction of the width axis W and the foot of the perpendicular on the same width axis W; the midpoint of the width is the midpoint of the line segment. The thickness of the battery pack housing 201 is the line segment between the two outermost points on the two opposite surfaces of the battery pack 2 in the direction of the thickness axis T and the foot of the perpendicular on the same thickness axis T; the midpoint of the thickness is the midpoint of the line segment. The height of the battery pack housing 201 is the line segment between the two outermost points on the two opposite surfaces of the battery pack 2 in the direction of the height axis H and the foot of the perpendicular on the same height axis H.

[0191] In one embodiment, all trigger members 33 are located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness, or all trigger members 33 are located on one side of a plane P2 perpendicular to the width axis and passing through the midpoint of the width.

[0192] It can be understood that one trigger member 33 or multiple trigger members 33 are located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness, or one trigger member 33 or multiple trigger members 33 are located on one side of a plane P2 perpendicular to the width axis and passing through the midpoint of the width, which reduces the need for the operator to shift a large area of ​​the finger when unlocking the battery pack 2, making it easier for the operator to operate the trigger member 33 with one hand to control the battery pack 2 to unlock relative to the housing 1. The structural design is more concentrated, and the appearance of the machine is more aesthetic.

[0193] Optionally, all trigger members 33 and all locking tongues 31 are located on the same side of the battery pack 2 .

[0194] Optionally, all trigger members 33 and all locking tongues 31 are located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness, or all trigger members 33 and all locking tongues 31 are located on one side of a plane P2 perpendicular to the width axis and passing through the midpoint of the width.

[0195] Further optionally, all trigger members 33, all lock tongues 31, and all lock tongue receiving portions 32 are located on one side of a plane P1 that is perpendicular to the thickness axis and passes through the midpoint of the thickness, or all trigger members 33, all lock tongues 31, and all lock tongue receiving portions 32 are located on one side of a plane P2 that is perpendicular to the width axis and passes through the midpoint of the width.

[0196] It can be understood that if more components including all trigger members 33, all lock tongues 31, and all lock tongue receiving portions 32 are located on the same side of the battery pack 2 or the same side of plane P1 or plane P2, the structural design of the locking assembly 3 will be simpler and more compact, which will help reduce the size of the power tool and make the appearance of the machine more aesthetically pleasing.

[0197] Furthermore, the number of the locking tongues 31 may be one or more, and the number of the locking tongue receiving parts 32 matching with the one or more locking tongues 31 may also be one or more; accordingly, the number of the triggering members 33 may also be one or more.

[0198] As an example, see Figures 3 to 8 The locking assembly 3 includes a locking tongue 31, a locking tongue receiving portion 32, and a triggering member 33. The locking tongue 31 and the triggering member 33 are movably arranged on the housing 1, and the locking tongue receiving portion 32 is arranged on the battery pack 2. In this embodiment, a triggering member 33, a locking tongue 31, and a locking tongue receiving portion 32 are all located on one side of a plane P1 which is perpendicular to the thickness axis T and passes through the midpoint of the thickness.

[0199] As another example, refer to Fig.39 The locking assembly 3 includes two locking tongues 31, two locking tongue receiving parts 32, and a triggering member 33. The two locking tongues 31 are respectively a first locking tongue 3111 and a second locking tongue 3112. The two locking tongue receiving parts 32 are respectively a first locking tongue 3111 receiving part 32 matched with the first locking tongue 3111 and a second locking tongue 3112 receiving part 32 matched with the second locking tongue 3112. The locking tongue 31 and the triggering member 33 are movably arranged on the housing 1, and the locking tongue receiving part 32 is arranged on the battery pack 2. In this embodiment, a triggering member 33 is located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness; the first locking tongue 3111 and the second locking tongue 3112 are respectively located on both sides of the plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness; the first locking tongue 3111 receiving part 32 and the second locking tongue 3112 receiving part 32 are respectively located on both sides of a plane P1 perpendicular to the thickness axis T and passing through the midpoint of the thickness.

[0200] As another example, refer to Fig.37 The locking assembly 3 includes a locking tongue 31, a locking tongue receiving portion 32, and a triggering member 33. The locking tongue 31 and the triggering member 33 are movably arranged on the housing 1, and the locking tongue receiving portion 32 is arranged on the battery pack 2. In this embodiment, a triggering member 33, a locking tongue 31, and a locking tongue receiving portion 32 are all located on one side of a plane P2 which is perpendicular to the width axis W and passes through the midpoint of the width.

[0201] As another example, refer to Figures 27 to 31The locking assembly 3 includes two locking tongues 31, a locking tongue receiving portion 32 matched with the two locking tongues 31, and two triggering members 33. The two locking tongues 31 are respectively a first locking tongue 3111 and a second locking tongue 3112. The locking tongue 31 and the triggering member 33 are movably arranged on the housing 1, and the locking tongue receiving portion 32 is arranged on the battery pack 2. In this embodiment, the two triggering members 33, the two locking tongues 31, and the locking tongue receiving portion 32 are all located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness.

[0202] Based on the external force applied to the trigger member 33, the trigger member 33 generates at least two different actions including: one action generated by the trigger member 33, which realizes the movement of the trigger member 33, and the battery pack 2 is not unlocked relative to the housing 1; and another action generated by the trigger member 33, which realizes the movement of the trigger member 33 and drives the lock tongue 31 to move, so that the battery pack 2 is unlocked relative to the housing 1. For the convenience of description, one action is called the first action, and the other action is called the second action.

[0203] It should be noted that the first action and the second action are only used to represent two different actions, wherein the first and the second do not limit the order of the two actions, nor do they limit the continuity of the two actions. For example, there may be other actions between the two actions.

[0204] It can be understood that the first action of the trigger member 33 does not unlock the battery pack 2 relative to the housing 1, and the second action of the trigger member 33 unlocks the battery pack 2 relative to the housing 1. In other words, the battery pack 2 can be unlocked relative to the housing 1 only based on at least the first action and the second action of the trigger member 33.

[0205] In one embodiment, based on the external force applied to the trigger member 33, the trigger member 33 generates at least two different actions, including: one action, i.e., the first action, generated by the trigger member 33, which enables the trigger member 33 to move, and the lock tongue 31 does not move; and another action, i.e., the second action, generated by the trigger member 33, which enables the trigger member 33 to move and drives the lock tongue 31 to move. By applying an external force to the trigger member 33, at least two different actions generated by the trigger member 33 are achieved, thereby driving the battery pack 2 to be successfully unlocked and detached from the power tool.

[0206] As an example, Figures 3 to 8As shown, the locking assembly 3 also includes a lock tongue linkage 34. One action of the trigger 33, i.e., the first action, enables the trigger 33 to be in a position that allows the lock tongue 31 to move; another action of the trigger 33, i.e., the second action, enables the lock tongue linkage 34 to move and drives the lock tongue 31 to move relative to the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the power tool. In this example, when the trigger 33 does not perform the first action, the trigger 33 cannot link the lock tongue linkage 34 to move. Through the first action of the trigger 33, the trigger 33 is moved to a position capable of driving the lock tongue 31 to move.

[0207] It should be noted that the trigger member 33 being in a position allowing the lock tongue 31 to move should be understood as: the user can directly apply force to the trigger member 33 to move the trigger member 33 without any other actions, and the movement of the trigger member 33 can drive the lock tongue 31 to move.

[0208] Specifically, the lock tongue linkage member 34 is configured to move under the drive of the trigger member 33, thereby driving the lock tongue 31 to move. Further, the trigger member 33 is movably arranged relative to the lock tongue linkage member 34, and can abut against the lock tongue linkage member 34. The lock tongue linkage member 34 is movably arranged relative to the lock tongue 31, and can abut against the lock tongue 31; or, the lock tongue linkage member 34 is relatively fixedly connected to the lock tongue 31. The lock tongue linkage member 34 pivots around a fixed pivot.

[0209] In one example, if Figures 3 to 8 As shown, the locking assembly 3 includes a lock tongue 31, a lock tongue receiving portion 32, a trigger member 33, and a lock tongue linkage member 34. The trigger member 33 pivots around a pivot, and the first action of the trigger member 33 enables the trigger member 33 to move to a position abutting against the lock tongue linkage member 34, and the second action of the trigger member 33 enables the trigger member 33 to drive the lock tongue linkage member 34 to move and then drive the lock tongue 31 to move and disengage from the lock tongue receiving portion 32. In this embodiment, the first action of the trigger member 33 enables the trigger member 33 to move, and the lock tongue 31 does not move.

[0210] In another example, Figures 14 to 19 As shown, the trigger member 33 moves along a straight line guide direction, and the first action of the trigger member 33 enables the trigger member 33 to move to a position where it can drive the lock tongue linkage member 34 to move, and the second action of the trigger member 33 enables the trigger member 33 to drive the lock tongue linkage member 34 to move and then drive the lock tongue 31 to move and disengage from the lock tongue receiving portion 32. In this embodiment, the first action of the trigger member 33 enables the trigger member 33 to move, and the lock tongue 31 does not move.

[0211] In another example, the trigger member 33 includes a first trigger member 331 and a second trigger member 332. Optionally, the first trigger member 331 and the second trigger member 332 are independently provided. The first trigger member 331 and the second trigger member 332 move independently of each other.

[0212] There are two implementations for the trigger member 33. As another example, Figure 24 to Figure 26 As shown, the trigger member 33 also includes a first trigger member 331, and an inhibitory member 333 (the inhibitory member can be called a second trigger member 332) for locking the first trigger member 331, and the inhibitory member 333 includes a first position and a second position that moves relative to the housing 1; in the first position, the inhibitory member 333 does not allow the first trigger member 331 to drive the lock tongue 31 to move; in the second position, the first trigger member 331 can drive the lock tongue 31 to move.

[0213] It should be noted that the inhibitor 333 does not allow the first trigger 331 to drive the lock tongue 31 to move, which should be understood as: if the user does not operate the inhibitor 333, the trigger 33 cannot be operated to unlock the battery pack 2. Specifically, the inhibitor 333 is set in a manner including locking the trigger 33 or shielding the operating end 3311 of the trigger 33 to prevent the trigger 33 from unlocking the battery pack 2, but is not limited thereto. For ease of understanding, the end of the trigger 33 used to apply external force is defined as the operating end 3311 of the trigger 33.

[0214] In this embodiment, one action generated by the trigger member 33, namely the first action, is configured as a motion track generated by the inhibitor 333, and another action generated by the trigger member 33, namely the second action, is configured as a motion track generated by the first trigger member 331; the motion track generated by the inhibitor 333 enables the inhibitor 333 to move from the first position to the second position, so as to allow the first trigger member 331 to drive the lock tongue 31 to move; the motion track generated by the trigger member 33 enables the first trigger member 331 to drive the lock tongue 31 to disengage from the lock tongue receiving portion 32. In this embodiment, the first action of the trigger member 33 enables the trigger member 33 to move, and the lock tongue 31 does not move.

[0215] Specifically, the inhibitor 333 is guided to slide or pivotally connect to the housing 1, the inhibitor 333 is interlocked with the trigger member 33, or the inhibitor 333 covers the operating end 3311 of the trigger member 33, all of which are locking of the first trigger member 331 by the inhibitor 333 to prevent the user from directly operating the trigger member 33 to unlock the battery pack 2.

[0216] There are two examples for the above trigger member 33. As another example, Fig.40As shown, the trigger member 33 includes a first trigger member 331 and a second trigger member 332, and the lock tongue 31 is only provided with one, and the locking assembly 3 also includes a first movable member 351 and a second movable member 352 that move independently. The first movable member 351 is located between the first trigger member 331 and the lock tongue 31. The second movable member 352 is located between the second trigger member 332 and the lock tongue 31. The first movable member 351 and the second movable member 352 both include an initial locking position and an unlocking position after moving a certain trajectory relative to the locking position. The first trigger member 331 is configured to drive the first movable member 351 to move between the locking position and the unlocking position, and the second trigger member 332 is configured to drive the second movable member 352 to move between the locking position and the unlocking position. In this example, when at least one of the first movable member 351 and the second movable member 352 is in the locking position, the lock tongue 31 is engaged with the lock tongue receiving portion 32; when both the first movable member 351 and the second movable member 352 are in the unlocking position, the lock tongue 31 is disengaged from the lock tongue receiving portion 32.

[0217] In this embodiment, one action generated by the trigger member 33, namely the first action, is configured as the movement of the first trigger member 331, so as to drive the first movable member 351 to move to the unlocked position; another action generated by the trigger member 33, namely the second action, is configured as the movement of the second trigger member 332, so as to drive the second movable member 352 to move to the unlocked position.

[0218] In another embodiment, based on the external force applied to the trigger member 33, at least two different actions generated by the trigger member 33 include: one action generated by the trigger member 33, which realizes the movement of the trigger member 33, drives at least part of the lock tongue 31 to move, but the battery pack 2 is not unlocked relative to the housing 1; and another action generated by the trigger member 33, which realizes the movement of the trigger member 33 and drives the lock tongue 31 to move, so that the battery pack 2 is unlocked relative to the housing 1. Further, there are at least two situations in which at least part of the lock tongue 31 is driven to move. In one case, the movement of the trigger member 33 can only drive the lock tongue 31 to move a certain trajectory, at which time, the lock tongue 31 is not completely separated from the lock tongue receiving portion 32. In another case, the movement of the trigger member 33 drives one lock tongue 31 to move and separate from the lock tongue receiving portion 32. At this time, there are other lock tongues 31 engaged with the lock tongue receiving portion 32. In this embodiment, the number of lock tongues 31 is at least two.

[0219] As an example, Figures 27 to 31 As shown, the trigger member 33 includes a first trigger member 331 and a second trigger member 332, and the lock tongue 31 includes a first lock tongue 3111 and a second lock tongue 3112 that move independently of each other. The first trigger member 331 is configured to drive the first lock tongue 3111 to move, and the second trigger member 332 is configured to drive the second lock tongue 3112 to move.

[0220] In this embodiment, one action generated by the first trigger member 331, namely the first action, is configured as a motion track generated by the first trigger member 331, so that the first trigger member 331 drives the first lock tongue 3111 to disengage from the lock tongue receiving portion 32, and another action generated by the second trigger member 332, namely the second action, is configured as a motion track generated by the second trigger member 332, so that the second trigger member 332 drives the second lock tongue 3112 to disengage from the lock tongue receiving portion 32. That is, in this embodiment, the first action of the trigger member 33 realizes the movement of the first trigger member 331 and the movement of the first lock tongue 3111.

[0221] In one embodiment, there is only one trigger member 33, and one action generated by one trigger member 33, namely the first action, realizes the movement of the trigger member 33, and the battery pack 2 is not unlocked relative to the housing 1; another action generated by one trigger member 33, namely the second action, realizes the movement of the trigger member 33 and drives the lock tongue 31 to move, so that the battery pack 2 is unlocked relative to the housing 1. In this embodiment, the same trigger member 33 needs to perform at least two different actions to drive the lock tongue 31 to move and realize the unlocking of the battery pack 2.

[0222] In one embodiment, only one trigger member 33 is provided, and at least two different actions are sequentially generated by the one trigger member 33 .

[0223] It should be noted that the "sequentially" in "at least two different actions are sequentially generated on the trigger member 33" is only used to limit the two actions to occur one after the other, and is progressive. The subsequent unlocking action can only be applied after the previous unlocking action is completed. It does not limit the continuity of the two actions, and there may be other actions between the two actions.

[0224] As an example, Figures 3 to 8 As shown, the locking assembly 3 includes a lock tongue 31, a lock tongue receiving portion 32, and a trigger 33. In this embodiment, the first action of the trigger 33 realizes the movement of the trigger 33, the lock tongue 31 does not move, and the battery pack 2 is not unlocked relative to the housing 1; the second action of the trigger 33 realizes the movement of the trigger 33 to drive the lock tongue 31 to move and disengage from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1. The first action and the second action are sequentially generated by one trigger 33.

[0225] As another example, Fig.39As shown, the locking assembly 3 includes two locking tongues 31, two locking tongue receiving parts 32, and a trigger 33. The two locking tongues 31 are respectively a first locking tongue 3111 and a second locking tongue 3112. The two locking tongue receiving parts 32 are respectively a first locking tongue 3111 receiving part 32 matched with the first locking tongue 3111 and a second locking tongue 3112 receiving part 32 matched with the second locking tongue 3112. In this embodiment, the first action of the trigger 33 realizes the movement of the trigger 33, drives the first locking tongue 3111 to move and disengage from the first locking tongue 3111 receiving part 32, and the battery pack 2 is not unlocked relative to the housing 1; the second action of the trigger 33 realizes the movement of the trigger 33, drives the second locking tongue 3112 to move and disengage from the second locking tongue 3112 receiving part 32, and unlocks the battery pack 2 relative to the housing 1. The first action and the second action are sequentially generated by one trigger 33.

[0226] In one embodiment, the trigger member 33 includes a first trigger member 331 and a second trigger member 332. An action generated by the first trigger member 331 realizes the movement of the first trigger member 331, and the battery pack 2 is not unlocked relative to the housing 1; another action generated by the second trigger member 332 realizes the movement of the second trigger member 332 and drives the lock tongue 31 to move, so that the battery pack 2 is unlocked relative to the housing 1.

[0227] It can be understood that by applying force to the first trigger member 331 and the second trigger member 332 respectively, so that the first trigger member 331 and the second trigger member 332 respectively produce an action, the battery pack 2 can be unlocked relative to the housing 1, which can effectively reduce the risk of unlocking the battery pack 2 due to accidental touch.

[0228] As an example, Figures 27 to 31 As shown, the trigger member 33 includes a first trigger member 331 and a second trigger member 332, and the lock tongue 31 includes a first lock tongue 3111 and a second lock tongue 3112 that move independently of each other. The first trigger member 331 is configured to drive the first lock tongue 3111 to move, and the second trigger member 332 is configured to drive the second lock tongue 3112 to move.

[0229] In this embodiment, one action generated by the trigger member 33 is configured as a motion trajectory generated by the first trigger member 331, so that the first trigger member 331 drives the first lock tongue 3111 to disengage from the lock tongue receiving portion 32, and another action generated by the trigger member 33 is configured as a motion trajectory of the second trigger member 332, so that the second trigger member 332 drives the second lock tongue 3112 to disengage from the lock tongue receiving portion 32.

[0230] As another example, Fig.40As shown, the trigger member 33 includes a first trigger member 331 and a second trigger member 332, and the lock tongue 31 is only provided with one. The locking assembly 3 also includes a first movable member 351 and a second movable member 352 that can move independently of each other. The first movable member 351 and the second movable member 352 respectively include a locking position and an unlocking position. The first trigger member 331 is configured to drive the first movable member 351 to move between the locking position and the unlocking position, and the second trigger member 332 is configured to drive the second movable member 352 to move between the locking position and the unlocking position. When at least one of the first movable member 351 and the second movable member 352 is in the locking position, the lock tongue 31 is engaged with the lock tongue receiving portion 32; when both the first movable member 351 and the second movable member 352 are in the unlocking position, the lock tongue 31 is disengaged from the lock tongue receiving portion 32.

[0231] In this embodiment, one action generated by the trigger member 33 is configured as the movement of the first trigger member 331, so as to drive the first movable member 351 to move to the unlocked position; another action generated by the trigger member 33 is configured as the movement of the second trigger member 332, so as to drive the second movable member 352 to move to the unlocked position.

[0232] In one embodiment, one action of the trigger member 33 realizes the movement of the trigger member 33 along a first travel trajectory (also referred to as the first travel); another action of the trigger member 33 realizes the movement of the trigger member 33 along a second travel trajectory (also referred to as the second travel) different from the first travel trajectory. The electric tool is configured such that: based on at least the first travel trajectory and the second travel trajectory, the battery pack 2 is unlocked relative to the housing 1. The first travel trajectory and the second travel trajectory of the trigger member 33 are not in a straight line. Furthermore, the first travel trajectory and the second travel trajectory are in different directions or are parallel.

[0233] It should be noted that the travel trajectory can be the moving trajectory of any point on the trigger member 33. The first travel trajectory and the second travel trajectory are not on a straight line, and the first travel trajectory and the second travel trajectory may be non-straight lines; the first travel trajectory and the second travel trajectory may be both straight lines, and the first travel trajectory and the second travel trajectory have different directions; the first travel trajectory and the second travel trajectory may be both straight lines, and the first travel trajectory and the second travel trajectory may be parallel and do not overlap, and other forms may also be possible, and are not limited thereto.

[0234] It can be understood that the first travel trajectory and the second travel trajectory are not in a straight line, which means that applying a force in a single direction on the trigger member 33 cannot unlock the battery pack 2 relative to the housing 1, and the external force that causes an accidental touch can usually only apply a force in a single direction. Therefore, the risk of the battery pack 2 being unlocked due to an accidental touch can be effectively reduced.

[0235] Furthermore, there is only one trigger member 33, and the first travel trajectory and the second travel trajectory are generated by the successive movements of the same trigger member 33; or the number of trigger members 33 is configured to be at least two, and the first travel trajectory and the second travel trajectory are generated by the movements of different trigger members 33.

[0236] As an example, Figures 3 to 8 As shown, the locking assembly 3 includes only one trigger member 33, and the first travel trajectory and the second travel trajectory are generated by the sequential movement of the trigger member 33. Specifically, the trigger member 33 pivots around a pivot, and the trigger member 33 moves along the first travel trajectory to reach a position where the lock tongue 31 can be driven to move, and the trigger member 33 continues to move along the second travel trajectory to drive the lock tongue 31 to move and disengage from the lock tongue receiving portion 32. In this embodiment, since the trigger member 33 pivots, the first travel trajectory and the second travel trajectory are both arcs, and the two do not overlap.

[0237] As another example, Figures 14 to 19 As shown, the locking assembly 3 includes only one trigger member 33, and the first travel trajectory and the second travel trajectory are generated by the sequential movement of the trigger member 33. Specifically, the trigger member 33 moves along the first travel trajectory in a straight line guide direction to reach a position where the lock tongue 31 can be driven to move, and the trigger member 33 continues to pivot around a pivot axis to move along the second travel trajectory, driving the lock tongue 31 to move and disengage from the lock tongue receiving portion 32. In this embodiment, the first travel trajectory is a straight line, and the second travel trajectory is an arc.

[0238] As another example, Figures 27 to 31 As shown, there are two trigger members 33, namely, a first trigger member 331 and a second trigger member 332, which respectively drive the first locking tongue 3111 and the second locking tongue 3112 to move. The first travel trajectory and the second travel trajectory are respectively generated by the movement of the first trigger member 331 and the second trigger member 332. In this embodiment, the first trigger member 331 and the second trigger member 332 have the same structure and the same movement mode, and the first travel trajectory and the second travel trajectory are parallel.

[0239] As another example, Figures 24 to 26 As shown, the trigger member 33 includes a first trigger member 331 and a suppressing member 333 for locking the first trigger member 331, and the suppressing member 333 includes a first position and a second position for moving relative to the housing 1; in the first position, the suppressing member 333 does not allow the first trigger member 331 to drive the lock tongue 31 to move; in the second position, the first trigger member 331 can drive the lock tongue 31 to move.

[0240] The first stroke trajectory is generated by the movement of the inhibitor 333, so that the inhibitor 333 moves from the first position to the second position, so as to allow the first trigger 331 to drive the lock tongue 31 to move, wherein the first stroke trajectory is for the inhibitor 333 to slide or pivot in a direction away from the first trigger 331; the second stroke trajectory is generated by the first trigger 331, so that the first trigger 331 drives the lock tongue 31 to disengage from the lock tongue receiving portion 32. In this embodiment, the first stroke trajectory and the second stroke trajectory are respectively generated by the movement of the inhibitor 333 and the first trigger 331, that is, they are generated by the successive movement of different triggers 33, and the first stroke trajectory and the second stroke trajectory have different directions.

[0241] In the related art, in order to solve the technical problem that the battery pack 2 of the power tool is easily unlocked by accidental touch, which in turn causes the battery pack 2 to be abnormally separated from the power tool, two pairs of interlocking mechanisms are set between the battery pack 2 and the housing 1 of the power tool, that is, the power tool is provided with two lock tongues 31, two lock tongue receiving parts 32 respectively matched with the two lock tongues 31, and two triggering members 33 respectively used to control the movement of the two lock tongues 31. However, a conventional battery pack 2 is usually provided with only one lock tongue receiving part 32, which makes the power tool incompatible with the existing battery pack 2 platform and cannot realize the function of preventing the battery pack 2 from being unlocked by accidental touch.

[0242] In order to be compatible with the existing battery pack 2 that has only one lock tongue receiving portion 32 and to realize the function of preventing the battery pack 2 from being accidentally unlocked, in one embodiment, the lock tongue 31 and the trigger member 33 are both movably arranged on the housing 1, and the lock tongue receiving portions 32 are both arranged on the battery pack 2. There is only one lock tongue receiving portion 32, and the lock tongue receiving portion 32 is configured to engage with at least one lock tongue 31.

[0243] As an example, Figures 3 to 8 As shown, the locking assembly 3 includes a lock tongue 31, a lock tongue receiving portion 32, and a trigger 33. In this embodiment, based on the external force applied to the trigger 33, the trigger 33 generates a first action, so that the trigger 33 moves, the lock tongue 31 does not move, and the battery pack 2 is not unlocked relative to the housing 1; based on the external force applied to the trigger 33, the trigger 33 generates a second action, so that the trigger 33 moves to drive the lock tongue 31 to move and disengage from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1. In this embodiment, only one lock tongue receiving portion 32 is provided, and by applying force to the trigger 33, the trigger 33 generates at least two different actions to unlock the battery pack 2 relative to the housing 1, which can effectively reduce the risk of the battery pack 2 being unlocked due to accidental touch.

[0244] As another example, Figures 27 to 31As shown, the locking assembly 3 includes two locking tongues 31, a locking tongue receiving portion 32 matched with the two locking tongues 31, and two triggering members 33. The two locking tongues 31 are respectively a first locking tongue 3111 and a second locking tongue 3112. In this embodiment, the two locking tongues 31 share a locking tongue receiving portion 32. By providing two triggering members 33, the battery pack 2 can be unlocked relative to the housing 1 only by applying force to the two triggering members 33, which can effectively reduce the risk of the battery pack 2 being unlocked due to accidental touch.

[0245] The electric tool of this embodiment is compatible with the existing battery pack 2 having only one lock tongue receiving portion 32 , and at the same time realizes the function of preventing the battery pack 2 from being accidentally unlocked based on the platform of the battery pack 2 .

[0246] The chainsaw 100 for working on trees is usually used by users when working on trees in a relatively complex working environment. Users usually hang the chainsaw 100 on their bodies when climbing trees. The chainsaw 100 will shake during the climbing process. Therefore, when the user is climbing a tree and working on a tree, the unlocking key of the battery pack 2 may touch a branch or the user's body, which may cause the battery pack 2 to be unlocked due to an accidental touch, causing the battery pack 2 to be abnormally detached from the chainsaw 100, causing harm to people or animals around, or damage to objects, posing a major safety hazard.

[0247] In one embodiment, referring to Figure 1 The electric tool is a chain saw 100, and the chain saw 100 includes a cutting assembly 62 and a top handle 63. The cutting assembly 62 is mounted on the housing 1, and includes a guide plate 641 and a saw chain 621 (also called a cutting chain) arranged around the guide plate 641, and the guide plate 641 provides support and guidance for the saw chain 621. The top handle 63 is for the user to hold. The cutting assembly 62 is arranged on the front side of the housing 1 in the length extension direction of the chain saw 100; the battery pack mounting portion 101 is arranged on the rear side of the housing 1 in the length extension direction of the chain saw 100; and the top handle 63 is arranged above the housing 1 in the height extension direction of the chain saw 100.

[0248] Need to explain, such as Figure 1 As shown, the length extension direction L1 of the chain saw 100 is the length extension direction of the guide plate 641 , the height extension direction H1 of the chain saw 100 is the height extension direction of the guide plate 641 , and the width extension direction W1 of the chain saw 100 is the thickness extension direction of the guide plate 641 .

[0249] The top handle 63 includes a top handle housing 631, and the trigger 33 and at least a portion of the lock tongue 31 are disposed in the top handle housing 631. It can be understood that the lock tongue 31 and the trigger 33 are movably disposed on the housing 1, and the lock tongue receiving portion 32 is disposed on the battery pack 2, and the trigger 33 can be disposed on the top handle housing 631, so that the user can hold the battery pack 2 with one hand and unlock it at the same time.

[0250] like Fig.12 The chain saw 100 further includes a trigger 66 for controlling the operation or shutdown of the chain saw 100. The trigger 66 is disposed on the upper side or the lower side of the top handle housing 631. The trigger member 33 and the trigger 66 are respectively disposed on the same side or the opposite side of the top handle housing 631, which is convenient for the user to operate.

[0251] The chain saw 100 further includes an auxiliary handle 65, which is disposed on the side of the housing 1. Preferably, the auxiliary handle 65 is located on the left side of the housing 1.

[0252] The top handle 63 of the tree chain saw 100 is arranged on the front side of the battery pack 2, so that the chain saw 100 is smaller in size and more compact in structure. When used in conjunction with the auxiliary handle 65 arranged on the side of the casing 1, it is convenient for the operator's arm to operate in a small space. It is particularly suitable for use in complex operating environments such as working on trees.

[0253] In some embodiments, the locking assembly 3 includes a locking tongue 31 , a locking tongue receiving portion 32 , a trigger member 33 and a locking tongue linkage member 34 .

[0254] In some embodiments, the lock tongue receiving portion 32 includes at least one stop space that can engage with the lock tongue 31 and stop the lock tongue 31; the lock tongue 31 is disengaged from the stop space of the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1. It can be understood that the lock tongue 31 and the lock tongue receiving portion 32 can be unlocked by the lock tongue 31 being disengaged from all the stop spaces of the lock tongue receiving portion 32.

[0255] The lock tongue receiving portion 32 is a lock slot or a lock hole provided in the housing 1 or the battery pack housing 201. It can be understood that the lock slot or the slot constitutes a stop space of the lock tongue receiving portion 32 that can stop the lock tongue 31.

[0256] like Figures 4 to 8 As shown, the lock tongue 31 includes at least one protrusion 311, and the lock tongue receiving portion 32 includes at least one recess 321. The protrusion 311 of the lock tongue 31 is engaged with the recess 321 of the lock tongue receiving portion 32, so that the battery pack 2 can be locked relative to the housing 1; the protrusion 311 of the lock tongue 31 is disengaged from the recess 321 of the lock tongue receiving portion 32, so that the battery pack 2 can be unlocked relative to the housing 1.

[0257] As an example, the lock tongue receiving portion 32 includes a lock groove provided in the housing 1 or the battery pack housing 201. The lock tongue 31 includes a protrusion 311, and the lock groove includes a recess 321 that matches the protrusion 311. The protrusion 311 of the lock tongue 31 is engaged with the recess 321 of the lock groove, so that the battery pack 2 can be locked relative to the housing 1. That is, a protrusion 311 extends into a recess 321, so that the battery pack 2 is locked relative to the housing 1 and cannot move. The lock tongue 31 is unlocked and locked with the lock tongue receiving portion 32, that is, the protrusion 311 of the lock tongue 31 is separated from the recess 321 of the lock groove, so that the battery pack 2 can move relative to the housing 1.

[0258] As another example, the lock tongue receiving portion 32 includes a lock slot provided on the housing 1 or the battery pack housing 201. The lock tongue 31 includes a plurality of protrusions 311, and the lock slot includes a plurality of recesses 321 corresponding to the plurality of protrusions 311. It is understandable that the lock tongue 31 can be an integral structure, such as extending a plurality of protrusions 311 on a main body, and the plurality of protrusions 311 all move synchronously with the main body; the lock tongue 31 can also include a plurality of discrete structures, each of which has a protrusion 311 formed thereon, and the plurality of discrete structures all move synchronously with the movement of the trigger mechanism 33, that is, the protrusions 311 of the plurality of discrete structures synchronously engage the plurality of recesses 321 of the lock slot to lock the battery pack 2, or synchronously disengage the plurality of recesses 321 of the lock slot to unlock the battery pack 2.

[0259] As another example, the lock tongue receiving portion 32 includes a lock groove provided in the housing 1 or the battery pack housing 201. The lock tongue 31 includes one or more protrusions 311, and the lock groove includes one or more recesses 321 matched with the one or more protrusions 311, and the protrusions 311 and the recesses 321 are not matched one-to-one. For example, the lock tongue 31 may include a plurality of ratchet claws, and the lock groove may include a ratchet groove matched with the plurality of ratchet claws; or a protrusion 311 may sequentially engage with a plurality of lock grooves, etc., which are not listed here one by one.

[0260] In one embodiment, the longitudinal section of the recessed portion 321 of the lock slot is a trumpet shape that gradually narrows from the outside to the inside, and the outer portion of the longitudinal section of the protruding portion 311 of the lock tongue 31 gradually narrows in the direction close to the lock slot. This structure is conducive to the alignment of the lock tongue 31 and the lock slot, and has low requirements on the accuracy of the lock tongue 31 in the movement direction. The protruding portion 311 of the lock tongue 31 is provided around the outer end surface of the recessed portion 321 of the lock slot, so that the lock tongue 31 and the lock slot can be stably engaged, which can reduce the relative movement between the battery pack 2 and the housing 1.

[0261] The trigger member 33 is provided on the housing 1 in a guided and movable manner, and the trigger member 33 is guided and moved relative to the housing 1 to drive the lock tongue 31 to engage with or disengage from the lock tongue receiving portion 32. The trigger member 33 is directly connected to the lock tongue 31, or indirectly connected to it, or abuts against it.

[0262] like Figure 6 As shown, the locking assembly 3 also includes a trigger elastic reset member 334; the trigger member 33 includes an initial position in a state where no external force is applied, and the trigger elastic reset member 334 acts on the trigger member 33 to apply a force to the trigger member 33 to move it toward the initial position.

[0263] like Figure 6 As shown, the locking assembly 3 further includes a lock tongue elastic reset member 36; the lock tongue elastic reset member 36 acts on the lock tongue 31 to apply a force to the lock tongue 31 to move the lock tongue 31 toward the lock tongue receiving portion 32. A reset member mounting portion is provided on the lock tongue 31, one end of the lock tongue elastic reset member 36 is attached to the reset member mounting portion, and the other end abuts against the housing 1 or the battery pack housing 201.

[0264] In one embodiment, the lock tongue 31 and the trigger member 33 are arranged on the housing 1, and the lock tongue receiving portion 32 is arranged on the battery pack 2; the housing 1 is provided with a through hole for the lock tongue 31 to extend into the battery pack mounting portion 101. In another embodiment, the lock tongue 31 and the trigger member 33 are arranged on the battery pack housing 201, and the lock tongue receiving portion 32 is arranged on the housing 1; the battery pack housing 201 is provided with a through hole for the lock tongue 31 to extend.

[0265] In one embodiment, referring to Figures 6 to 8 The lock tongue linkage 34 is pivotally arranged on the housing 1 or the battery pack housing 201 around a first pivot 335. The lock tongue linkage 34 includes a lock tongue abutment portion 341 and a trigger member abutment portion 342. The trigger member 33 is movably arranged on the housing 1 or the battery pack housing 201, and can move to abut against the trigger member abutment portion 342 and drive the trigger member abutment portion 342 to pivot around the first pivot 335. The lock tongue abutment portion 341 is configured to abut against the lock tongue 31 and drive the lock tongue 31 to move in a direction away from the lock tongue receiving portion 32.

[0266] Specifically, the bolt linkage member 34 has a through-shaft hole 343 through which the first pivot 335 passes, and the bolt linkage member 34 is pivotally disposed on the first pivot 335 through the through-shaft hole 343. The trigger member elastic reset member 334 is a torsion spring clamped between the trigger member 33 and the housing 1.

[0267] It is understandable that the lock tongue linkage member 34 may be an integrated structure, on which the lock tongue abutment portion 341 and the trigger member abutment portion 342 are formed in different directions. The lock tongue linkage member 34 may also include two separate components, on which the lock tongue abutment portion 341 and the trigger member abutment portion 342 are formed respectively, and the two separate components are synchronized in an abutment-matching manner.

[0268] Further, the lock tongue abutment portion 341 and the trigger member abutment portion 342 are located on both sides of a plane passing through the pivot axis of the first pivot shaft 335 and parallel to the movement direction of the lock tongue 31. Preferably, the angle between the extension direction of the lock tongue abutment portion 341 and the extension direction of the trigger member abutment portion 342 is 90° to 180°. More preferably, the angle between the extension direction of the lock tongue abutment portion 341 and the extension direction of the trigger member abutment portion 342 is 150° to 180°.

[0269] Reference Fig. 9 The lock tongue abutment portion 341 includes an extension portion 341a substantially arranged along its extension direction and an abutment portion 341b connected to the outer end of the extension portion 341a, and the abutment portion 341b has a smoothly transitioned outer contour in the pivot direction of the lock tongue abutment portion 341. As an example, the lock tongue abutment portion 341 may include two abutment portions 341b symmetrically arranged, and the two abutment portions 341b are connected as a whole through the extension portion 341a.

[0270] In this embodiment, the bolt linkage member 34 includes two discrete components, namely, an upper linkage member 342a and a lower linkage member 342b. The trigger member abutting portion 342 is formed on the upper linkage member 342a, and the bolt abutting portion 341 is formed on the lower linkage member 342b. The upper linkage member 342a and the lower linkage member 342b are synchronously linked in abutment and matching manner. Specifically, the upper linkage member 342a and the lower linkage member 342b are pivotally connected to the first pivot 335, respectively. An upper boss 342a1 is formed on the outer edge of the upper linkage member 342a, and a lower boss 342b1 is formed on the outer edge of the lower linkage member 342b. The upper boss 342a1 and the lower boss 342b1 abut against each other through an abutment surface arranged radially along the first pivot 335, so as to realize the synchronous linkage of the upper linkage member 342a and the lower linkage member 342b.

[0271] In one embodiment, the lock tongue linkage member 34 is movably arranged relative to the lock tongue 31 and can abut against the lock tongue 31. It can be understood that the lock tongue linkage member 34 and the lock tongue 31 are two independent components.

[0272] Reference Fig.10The lock tongue 31 is provided with an embedding groove 314 for the lock tongue abutting portion 341 of the lock tongue linkage member 34 to extend into so as to limit the lock tongue abutting portion 341 in the pivoting direction thereof, and is also provided with a reset member mounting portion 313, one end of the lock tongue elastic reset member 36 is attached to the reset member mounting portion 313, and the other end abuts against the housing 1. The lock tongue abutting portion 341 of the lock tongue linkage member 34 includes two abutting portions 341b. The reset member mounting portion 313 is at least partially disposed in the embedding groove 314, and the middle opening of the side wall of the embedding groove 314 away from the protrusion 311 is for the lock tongue elastic reset member 36 to extend out, and two retaining walls 312 are formed on both sides of the side wall for respectively abutting against the two abutting portions 341b of the lock tongue linkage member 34. Specifically, the elastic reset member 36 of the lock tongue is a spring, and the reset member installation portion 313 is a column fixed in the embedded groove 314 and having a gradually narrowed head, so that one end of the spring can be sleeved and clamped on the front end of the column, and the cross section of the column is a cross. A spring limiting groove 103 is provided at a corresponding position on the housing 1 to limit the other end of the spring. By arranging the reset member installation portion 313 in the embedded groove 314, the lock tongue 31 is more compact and smaller in size.

[0273] In one embodiment, Figures 4 to 8 As shown, the trigger member 33 is pivotally connected to the housing 1 or the battery pack housing 201 around the second pivot 336; or the trigger member 33 is pivotally connected to the lock tongue linkage member 34 around the second pivot 336. Further, the trigger member 33 is pivotally connected to the lock tongue linkage member 34 around the second pivot 336. Specifically, the trigger member 33 is pivotally connected to the trigger member abutment portion 342 of the lock tongue linkage member 34 around the second pivot 336.

[0274] Furthermore, the trigger member elastic return member 334 is a torsion spring clamped between the trigger member 33 and the housing 1 or the battery pack housing 201 .

[0275] The housing 1 or the battery pack housing 201 is provided with a trigger member 33 mounting slot 4, and the trigger member 33 is mounted at the trigger member 33 mounting slot 4 and does not protrude from the housing 1 or the battery pack housing 201. This structure makes it difficult for the trigger member 33 to be accidentally touched. Furthermore, the trigger member 33 mounting slot 4 is provided with a limiting slot wall 41 for limiting the range of motion of the trigger member 33 and a slot hole 42 for the trigger member 33 to extend into the housing 1 or the battery pack housing 201, and an operating gap 43 is left between the operating end 3311 of the trigger member 33 and the trigger member 33 mounting slot.

[0276] In another embodiment, referring to Figures 11 to 16The trigger member 33 is guided and moved along the first direction by the guide structure 337. The first unlocking action is configured to press the trigger member 33 to make it move along the first direction until it abuts against the lock tongue linkage member 34; the second unlocking action is configured to push the trigger member 33 along the second direction to move the trigger member 33 and drive the lock tongue linkage member 34 to pivot around the first pivot 335, and the lock tongue linkage member 34 drives the lock tongue 31 to move until the lock tongue 31 is disengaged from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0277] Further, refer to Figure 20 to Figure 22 The guide structure 337 includes a guide block 3371 pivotally arranged around the first pivot axis 335 and a guide groove 3372 arranged on the trigger member 33 and matched with the guide block 3371. At this time, the first unlocking action is configured to press the trigger member 33 to move it along the first direction until it abuts against the lock tongue linkage member 34; the second unlocking action is configured to push the trigger member 33 along the second direction, so that the trigger member 33 pivots around the first pivot axis 335 with the guide block 3371, and drives the lock tongue linkage member 34 to pivot around the first pivot axis 335, and the lock tongue linkage member 34 drives the lock tongue 31 to move until the lock tongue 31 is disengaged from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0278] The trigger member elastic return member 334 is a spring disposed between the guide block 3371 and the guide groove 3372 .

[0279] Reference Figures 17 to 19 A trigger member 33 mounting slot 4 is provided on the housing 1 or the battery pack housing 201, a limiting wall 44 is provided at the trigger member 33 mounting slot 4, the trigger member 33 is provided with a stopping surface 3313 matching with the limiting wall 44, and the limiting wall 44 is used to stop the stopping surface 3313, so that the trigger member 33 moves in the first direction before leaving the stopping front of the limiting wall 44 and cannot move in the second direction.

[0280] The housing 1 or the battery pack housing 201 is also provided with a guide wall 45, which is used to guide the trigger member 33 to move along the second direction. As an example, the guide wall 45 extends substantially along the second direction. The guide wall 45 can guide the trigger member 33 to a certain extent, making it easier for the user to find a force angle that matches the second direction, making the unlocking action of the battery pack 2 easier to operate.

[0281] In this embodiment, the lock tongue linkage member 34 is an integrated structure, and the lock tongue abutting portion 341 and the trigger member abutting portion 342 are formed on the integrated structure along different directions.

[0282] Reference Fig.23The trigger member 33 includes a pressing surface 3314 that is substantially perpendicular to the first direction and a pushing surface 3315 that is substantially perpendicular to the second direction. The pushing surface 3315 is provided with an anti-slip pattern 3316. Specifically, a groove is provided on the upper surface of the trigger member 33, the bottom wall of the groove forms the pressing surface 3314, and one side wall of the groove forms the pushing surface 3315. The pressing surface 3314 is substantially perpendicular to the first direction, which is beneficial for the user to apply a force to the trigger member 33 to move it in the first direction, and the pushing surface 3315 is substantially perpendicular to the second direction, which is beneficial for the user to apply a force to the trigger member 33 to move it in the second direction. It is easier for the user to find the force angle that causes the trigger member 33 to produce the first action and the second action, making it easier to unlock the battery pack 2.

[0283] Reference Fig.12 and Fig.15 In one embodiment, a sliding guide mechanism 5 is provided between the battery pack 2 and the battery pack mounting portion 101, and the sliding guide mechanism 5 includes a slide groove 52 and a slide rail 51 that cooperates with the slide groove 52. The slide groove 52 is provided on one of the battery pack 2 and the battery pack mounting portion 101, and the slide rail 51 that cooperates with the slide groove 52 is provided on the other. The battery pack 2 is connected to the battery pack mounting portion 101 through the slide groove 52 and the slide rail 51.

[0284] As an example, a slide groove 52 is provided on the battery pack installation part 101, and a slide rail 51 is provided on the battery pack 2 to cooperate with the slide groove 52. The battery pack 2 is connected to the battery pack installation part 101 through the cooperation of the slide rail 51 and the slide groove 52 to guide and move, so as to achieve mutual guidance and limitation between the battery pack 2 and the battery pack installation part 101. The battery pack installation part 101 is open at the top, and the battery pack 2 is inserted into the battery pack installation part 101 from top to bottom along the longitudinal direction.

[0285] The battery pack mounting portion 101 is provided with mounting portion electrode terminals, which are electrically connected to the power tool. The battery pack 2 is provided with battery pack 2 electrode terminals. When the battery pack 2 is securely mounted in the battery pack mounting portion 101, the mounting portion electrode terminals are matched with the battery pack 2 electrode terminals, thereby realizing electrical connection between the battery pack 2 and the power tool.

[0286] In the power tool of this embodiment, when installing the battery pack 2, the user aligns the slide rail 51 with the slide groove 52, and inserts the battery pack 2 into the battery pack installation portion 101. When the battery pack 2 is inserted in place, the lock tongue 31 can be engaged with the lock groove on the battery pack 2 under the action of the lock tongue elastic reset member 36, that is, the protrusion 311 of the lock tongue 31 extends into the concave portion 321 of the lock groove, so that the battery pack 2 is locked relative to the housing 1. When the user needs to remove the battery pack 2, the battery pack 2 must be unlocked first, and then the battery pack 2 must be pulled out along the guide direction.

[0287] In order to solve the technical problem that the battery pack 2 of the power tool is easily unlocked by accidental touch, thereby causing the battery pack 2 to be abnormally separated from the power tool, the present application also provides a power tool, including a housing 1 and a locking assembly 3. The housing 1 is provided with a battery pack installation portion 101, and the battery pack installation portion 101 can be inserted and connected to the battery pack 2, and the battery pack 2 is configured to provide power to the power tool. The locking assembly 3 includes a lock tongue 31, a lock tongue receiving portion 32 and a trigger member 33.

[0288] The lock tongue 31 and the trigger member 33 are movably disposed on one of the housing 1 and the battery pack 2, and the lock tongue receiving portion 32 is disposed on the other of the housing 1 and the battery pack 2. The lock tongue 31 is engaged with the lock tongue receiving portion 32 to lock the battery pack 2 relative to the housing 1; the lock tongue 31 is disengaged from the lock tongue receiving portion 32 to unlock the battery pack 2 relative to the housing 1.

[0289] The electric tool is configured such that an external force is applied to the trigger member 33 , and at least two different actions generated by the trigger member 33 directly or indirectly drive the lock tongue 31 to move relative to the lock tongue receiving portion 32 , thereby unlocking the battery pack 2 relative to the housing 1 .

[0290] The battery pack 2 includes a battery pack shell 201, which includes a first outer contour surface 71 and a second outer contour surface 72. The first outer contour surface 71 and the second outer contour surface 72 are relatively arranged in a direction perpendicular to the insertion direction of the battery pack 2. At least a portion of the lock tongue 31 or the lock tongue receiving portion 32 is arranged on the first outer contour surface 71, and the trigger member 33 is located on one side of the second outer contour surface 72.

[0291] In one embodiment, all the trigger members 33 are located on one side of the second contour surface.

[0292] The number of the locking tongues 31 may be one or more, and the number of the locking tongue receiving parts 32 matched with the one or more locking tongues 31 may also be one or more; accordingly, the number of the triggering members 33 may also be one or more.

[0293] As an example, see Figures 3 to 8 The locking assembly 3 includes a lock tongue 31, a lock tongue receiving portion 32, and a trigger member 33. The lock tongue 31 and the trigger member 33 are movably arranged on the housing 1, and the lock tongue receiving portion 32 is arranged on the battery pack 2. In this embodiment, the first outer contour surface 71 and the second outer contour surface 72 are arranged opposite to each other in the thickness direction of the battery pack 2, the lock tongue receiving portion 32 is arranged on the first outer contour surface 71, and the trigger member 33 is located on one side of the second outer contour surface 72.

[0294] As another example, refer to Figures 27 to 31The locking assembly 3 includes two locking tongues 31, a locking tongue receiving portion 32 matched with the two locking tongues 31, and two triggering members 33. The two locking tongues 31 are respectively a first locking tongue 3111 and a second locking tongue 3112. The locking tongue 31 and the triggering member 33 are movably arranged on the housing 1, and the locking tongue receiving portion 32 is arranged on the battery pack 2. In this embodiment, the first outer contour surface 71 and the second outer contour surface 72 are arranged opposite to each other in the thickness direction of the battery pack 2, the locking tongue receiving portion 32 is arranged on the first outer contour surface 71, and the two triggering members 33 are located on one side of the second outer contour surface 72.

[0295] In one embodiment, all trigger members 33 and all locking tongues 31 are located on one side of a plane P1 perpendicular to the thickness axis T and passing through the midpoint of the thickness, or all trigger members 33 and all locking tongues 31 are located on one side of the second contour surface. Specific examples of this embodiment have been described in the aforementioned embodiments and will not be repeated here.

[0296] In one embodiment, all trigger members 33, all locking tongues 31, and all locking tongue receiving portions 32 are located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness, or all trigger members 33, all locking tongues 31, and all locking tongue receiving portions 32 are located on one side of the second contour surface 72. Specific examples of this embodiment have been described in the aforementioned embodiments and will not be repeated here.

[0297] In one embodiment, Figure 1 As shown, the battery pack 2 includes a battery pack housing 201, and the battery pack housing 201 extends along three orthogonal spatial directions (x, y, z) in the directions of the width axis W, thickness axis T, and height axis H of the battery pack housing 201. The trigger member 33 and the lock tongue 31 are both located on the same side of a plane passing through the center of gravity of the battery pack 2 and perpendicular to the thickness axis T; or, the trigger member 33 and the lock tongue 31 are both located on the same side of a plane passing through the center of gravity of the battery pack 2 and perpendicular to the width axis W. Specifically, the center of gravity of the battery pack 2 is located inside the battery pack housing 201.

[0298] In one embodiment, Fig.36 As shown, the battery pack 2 includes a battery pack housing 201, and the battery pack housing 201 extends along three orthogonal spatial directions (x, y, z) in the directions of the width axis W, the thickness axis T, and the height axis H of the battery pack housing 201. The battery pack housing 201 includes a first housing 211 and a second housing 212 arranged opposite to each other along the thickness axis direction. In the thickness axis direction, the trigger member 33 and the lock tongue 31 are both located on one of the first housing 211 and the second housing 212.

[0299] In one embodiment, the battery pack 2 and the battery pack mounting portion 101 include multiple pairs of mating surfaces located on different sides of the battery pack 2, and the lock tongue 31 and the lock tongue receiving portion 32 are both arranged on one pair of mating surfaces. As an example, as shown in the figure, taking the chain saw 100 as an example, in the thickness axis direction of the battery pack 2, the side of the battery pack 2 close to the cutting assembly 62 is the front, and the side away from the cutting assembly 62 is the back. In the width axis direction of the battery pack 2, when the user faces forward, the left-hand side is the left, and the right-hand side is the right. The battery pack 2 and the battery pack mounting portion 101 include five pairs of mating surfaces located on the front, rear, left, right and bottom sides of the battery pack 2, and the lock tongue 31 and the lock tongue receiving portion 32 are both arranged on a pair of mating surfaces among the front, rear, left and right sides. Specifically, the lock tongue 31 and the lock tongue receiving portion 32 are both arranged on the front mating surface.

[0300] Furthermore, the battery pack 2 also includes a battery pack pole seat, which includes a plurality of terminals electrically connected to the electric tool. The battery pack pole seat is arranged close to the first outer contour surface 71 and is arranged away from the second contour surface.

[0301] As an example, Figure 3 As shown, the locking assembly 3 includes two locking tongues 31, a locking tongue receiving portion 32 matched with the two locking tongues 31, and two triggering members 33. The two locking tongues 31 are respectively a first locking tongue 3111 and a second locking tongue 3112. The locking tongue 31 and the triggering member 33 are movably arranged on the housing 1, and the locking tongue receiving portion 32 is arranged on the battery pack 2. In this embodiment, the first outer contour surface 71 and the second outer contour surface 72 are arranged opposite to each other in the thickness direction of the battery pack 2, the locking tongue receiving portion 32 and the battery pack pole seat are both arranged on the first outer contour surface 71, and all the triggering members 33 are located on one side of the second outer contour surface 72.

[0302] It should be noted that, among the aforementioned embodiments, all embodiments that do not conflict with each other can be freely combined to form new embodiments. Therefore, the embodiments already mentioned above will not be repeated here.

[0303] In order to solve the technical problem that the battery pack 2 of the power tool is easily unlocked by accidental touch, which leads to abnormal separation of the battery pack 2 from the power tool, the present application also provides a power tool, including a housing 1 and a locking assembly 3. The housing 1 is provided with a battery pack installation portion 101, and the battery pack installation portion 101 can be inserted and connected to the battery pack 2, and the battery pack 2 is configured to provide power to the power tool. The locking assembly 3 includes a lock tongue 31, a lock tongue receiving portion 32 and a trigger 33.

[0304] The lock tongue 31 and the trigger member 33 are movably disposed on one of the housing 1 and the battery pack 2, and the lock tongue receiving portion 32 is disposed on the other of the housing 1 and the battery pack 2. The lock tongue 31 is engaged with the lock tongue receiving portion 32 to lock the battery pack 2 relative to the housing 1; the lock tongue 31 is disengaged from the lock tongue receiving portion 32 to unlock the battery pack 2 relative to the housing 1.

[0305] There is only one trigger member 33, and the power tool is configured such that an external force is applied to the trigger member 33, and at least two different actions generated by the trigger member 33 directly or indirectly drive the lock tongue 31 to move relative to the lock tongue receiving portion 32, thereby unlocking the battery pack 2 relative to the housing 1.

[0306] It can be understood that the electric tool is only provided with a trigger member 33, and the at least two different actions generated by the trigger member 33 are at least two different actions generated by the trigger member 33 when an external force is applied to the same trigger member 33, for example, the action generated by the trigger member 33 when the operator applies force to the trigger member 33. The trigger member 33 is the object of the external force, and of course the object of the force application includes but is not limited to the operator, and can also be other objects of force application. The way of applying force includes direct contact operation, indirect operation to transfer the force to the trigger member 33, etc., but is not limited to this.

[0307] At least two different actions of the trigger member 33 are required to unlock the battery pack 2 relative to the housing 1, that is, a single action is not sufficient to unlock the battery pack 2 relative to the housing 1, and the external force that causes an accidental touch can usually only cause the trigger member 33 to produce a single action. Therefore, by at least two different actions of the trigger member 33, the battery pack 2 can be unlocked relative to the housing 1, which can effectively reduce the risk of the battery pack 2 being unlocked due to an accidental touch.

[0308] It can be understood that the battery pack 2 can be unlocked relative to the housing 1 by operating the same trigger member 33 , which can prevent the battery pack 2 from being unlocked due to accidental touch and make it easier for the user to unlock the battery pack 2 .

[0309] As an example, Figures 3 to 8 As shown, the locking assembly 3 includes a lock tongue 31, a lock tongue receiving portion 32, and only one trigger member 33. In this embodiment, when an external force is applied to the trigger member 33, the trigger member 33 generates an action to realize the movement of the trigger member 33, the lock tongue 31 does not move, and the battery pack 2 is not unlocked relative to the housing 1; when an external force is applied to the trigger member 33, the trigger member 33 generates another action to realize the movement of the trigger member 33 to drive the lock tongue 31 to move and disengage from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0310] As an example, Fig.39As shown, the locking assembly 3 includes two locking tongues 31, two locking tongue receiving parts 32, and only one trigger member 33. The two locking tongues 31 are respectively a first locking tongue 3111 and a second locking tongue 3112. The two locking tongue receiving parts 32 are respectively a first locking tongue 3111 receiving part 32 matched with the first locking tongue 3111 and a second locking tongue 3112 receiving part 32 matched with the second locking tongue 3112. In this embodiment, when an external force is applied to the trigger member 33, an action generated by the trigger member 33 is realized to move the trigger member 33, drive the first locking tongue 3111 to move and disengage from the first locking tongue 3111 receiving part 32, and the battery pack 2 is not unlocked relative to the housing 1; when an external force is applied to the trigger member 33, another action generated by the trigger member 33 is realized to move the trigger member 33, drive the second locking tongue 3112 to move and disengage from the second locking tongue 3112 receiving part 32, and the battery pack 2 is unlocked relative to the housing 1.

[0311] Further, the battery pack 2 includes a battery pack housing 201, and the battery pack housing 201 includes a first outer contour surface 71 and a second outer contour surface 72, and the first outer contour surface 71 and the second outer contour surface 72 are arranged opposite to each other in a direction perpendicular to the insertion direction of the battery pack 2. The first lock tongue 3111 and the second lock tongue 3112, or the first lock tongue 3111 receiving portion 32 and the second lock tongue 3112 receiving portion 32 are respectively arranged on the first outer contour surface 71 and the second outer contour surface 72. In a specific example, the lock tongue 31 and the trigger member 33 are movably arranged on the housing 1, the lock tongue receiving portion 32 is arranged on the battery pack 2, and the first lock tongue 3111 receiving portion 32 and the second lock tongue 3112 receiving portion 32 are respectively arranged on the first outer contour surface 71 and the second outer contour surface 72.

[0312] It should be noted that, among the aforementioned embodiments, all embodiments that do not conflict with each other can be freely combined to form new embodiments. Therefore, the embodiments already mentioned above will not be repeated here.

[0313] In order to solve the technical problem that the battery pack 2 of the electric tool is easily unlocked by accidental touch, thereby causing the battery pack 2 to be abnormally separated from the electric tool, the present application also provides an unlocking method for the battery pack 2 connected to the electric tool, referring to Figures 1 to 3 The electric tool comprises a housing 1 and a locking assembly 3 arranged on the housing 1. The housing 1 is provided with a battery pack installation portion 101. The battery pack installation portion 101 is for the battery pack 2 to be inserted and connected. The battery pack 2 is configured to provide power to the electric tool. The locking assembly 3 comprises a locking tongue 31, a locking tongue receiving portion 32 and a trigger member 33. The locking tongue 31 and the trigger member 33 are movably arranged on one of the housing 1 and the battery pack 2. The locking tongue receiving portion 32 is arranged on the other of the housing 1 and the battery pack 2. The unlocking method comprises at least the following steps:

[0314] In the first step, an external force is applied to the trigger member 33, and the trigger member 33 moves along a first travel trajectory, so that the battery pack 2 is not unlocked relative to the housing 1;

[0315] In the second step, the external force continues to be applied to the trigger member 33, and the trigger member 33 moves along a second travel trajectory, so that the trigger member 33 moves and drives the lock tongue 31 to move;

[0316] The second travel trajectory is different from the first travel trajectory; the number of the trigger member 33 is one and only one, and the trigger member 33 in the first step and the second step is the same trigger member 33.

[0317] It can be understood that the external force applied to the trigger member 33 causes the trigger member 33 to move the first travel track and the second travel track, thereby unlocking the battery pack 2 relative to the housing 1. For example, the operator applies force to the trigger member 33 to cause the trigger member 33 to move the first travel track and the second travel track. The trigger member 33 is the object of the external force application. Of course, the object of the force application includes but is not limited to the operator, and can also be other force application objects. The force application method includes direct contact operation, indirect operation to transfer the force to the trigger member 33, etc., but is not limited to this.

[0318] Furthermore, the first travel trajectory and the second travel trajectory are not on a straight line. It should be noted that the first travel trajectory and the second travel trajectory are not on a straight line, and the first travel trajectory and the second travel trajectory may be non-straight lines; the first travel trajectory and the second travel trajectory may be both straight lines, and the first travel trajectory and the second travel trajectory have different directions; the first travel trajectory and the second travel trajectory may be both straight lines, and the first travel trajectory and the second travel trajectory may be parallel and do not overlap, or other forms are also possible, and are not limited thereto.

[0319] It can be understood that the first travel trajectory and the second travel trajectory are not in a straight line, which means that applying a force in a single direction on the trigger member 33 cannot unlock the battery pack 2 relative to the housing 1, and the external force that causes an accidental touch can usually only apply a force in a single direction. Therefore, the risk of the battery pack 2 being unlocked due to an accidental touch can be effectively reduced.

[0320] Furthermore, in the second step, the trigger member 33 drives the lock tongue 31 to move, and the battery pack 2 is unlocked relative to the housing 1 .

[0321] Furthermore, the number of the trigger member 33 is one and only one.

[0322] As an example, Figures 3 to 8 As shown, the locking assembly 3 includes a locking tongue 31, a locking tongue receiving portion 32, and only one trigger member 33. The unlocking method includes at least the following steps:

[0323] In the first step, an external force is applied to the trigger member 33, and the trigger member 33 moves along a first travel trajectory, so that the lock tongue 31 does not move and the battery pack 2 is not unlocked relative to the housing 1;

[0324] In the second step, the external force continues to be applied to the trigger member 33, and the trigger member 33 moves a second travel trajectory, so that the trigger member 33 moves and drives the lock tongue 31 to move and disengage from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0325] The locking assembly 3 also includes a lock tongue linkage member 34, which is configured to move under the drive of the trigger member 33, thereby driving the lock tongue 31 to move. In this embodiment, when the user needs to remove the battery pack 2, the battery pack 2 must be unlocked first, and the unlocking method specifically includes the following steps:

[0326] In the first step, an external force is applied to the trigger member 33, and the trigger member 33 moves along a first travel trajectory, so that the trigger member 33 reaches a position abutting against the lock tongue linkage member 34, and the battery pack 2 is not unlocked relative to the housing 1;

[0327] In the second step, the external force continues to be applied to the trigger member 33, and the trigger member 33 moves a second travel trajectory, so that the trigger member 33 moves and drives the lock tongue linkage member 34 to move, and then drives the lock tongue 31 to disengage from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0328] Specifically, in the second step, the trigger member 33 drives the lock tongue 31 to move, and the battery pack 2 is unlocked relative to the housing 1 .

[0329] Specifically, the trigger member 33 is movably disposed relative to the lock tongue linkage member 34 and can abut against the lock tongue linkage member 34. The lock tongue linkage member 34 is movably disposed relative to the lock tongue 31 and can abut against the lock tongue 31; or, the lock tongue linkage member 34 is relatively fixedly connected to the lock tongue 31. The lock tongue linkage member 34 pivots around a fixed pivot.

[0330] As another example, Fig.39 As shown, the locking assembly 3 includes two locking tongues 31, two locking tongue receiving parts 32, and only one trigger member 33. The two locking tongues 31 are respectively a first locking tongue 3111 and a second locking tongue 3112. The two locking tongue receiving parts 32 are respectively a first locking tongue 3111 receiving part 32 matched with the first locking tongue 3111 and a second locking tongue 3112 receiving part 32 matched with the second locking tongue 3112. The unlocking method specifically includes the following steps:

[0331] In the first step, an external force is applied to the trigger member 33, and the trigger member 33 moves along a first travel trajectory, so that the first locking tongue 3111 moves and disengages from the first locking tongue 3111 receiving portion 32, and the battery pack 2 is not unlocked relative to the housing 1;

[0332] In the second step, the external force continues to be applied to the trigger member 33, and the trigger member 33 moves a second travel trajectory to realize the movement of the trigger member 33, driving the second lock tongue 3112 to move and disengage from the second lock tongue 3112 receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0333] In one embodiment, referring to Figure 1 The electric tool is a chain saw 100, and the chain saw 100 includes a cutting assembly 62 and a top handle 63. The cutting assembly 62 is mounted on the housing 1, and includes a guide plate 641 and a saw chain 621 arranged around the guide plate 641, and the guide plate 641 provides support and guidance for the saw chain 621. The top handle 63 is for the user to hold. The cutting assembly 62 is arranged on the front side of the housing 1 in the length extension direction of the chain saw 100; the battery pack mounting portion 101 is arranged on the rear side of the housing 1 in the length extension direction of the chain saw 100; and the top handle 63 is arranged above the housing 1 in the height extension direction of the chain saw 100.

[0334] Need to explain, such as Figure 1 As shown, the length extension direction L1 of the chain saw 100 is the length extension direction of the guide plate 641 , the height extension direction H1 of the chain saw 100 is the height extension direction of the guide plate 641 , and the width extension direction W1 of the chain saw 100 is the thickness extension direction of the guide plate 641 .

[0335] The top handle 63 includes a top handle housing 631, and the trigger 33 and at least a portion of the lock tongue 31 are disposed in the top handle housing 631. It can be understood that the lock tongue 31 and the trigger 33 are movably disposed on the housing 1, and the lock tongue receiving portion 32 is disposed on the battery pack 2, and the trigger 33 can be disposed on the top handle housing 631, so that the user can hold the battery pack 2 with one hand and unlock it at the same time.

[0336] It should be noted that, among the aforementioned embodiments, all embodiments that do not conflict with each other can be freely combined to form new embodiments. Therefore, the embodiments already mentioned above will not be repeated here.

[0337] In order to solve the technical problem that the battery pack 2 of the electric tool is easily unlocked by accidental touch, thereby causing the battery pack 2 to be abnormally separated from the electric tool, the present application also provides an electric tool, referring to Figures 32 to 36 As shown, it includes a housing 1 and a locking assembly 3. The housing 1 is provided with a battery pack installation portion 101, and the battery pack installation portion 101 is for the battery pack 2 to be inserted and connected, and the battery pack 2 is configured to provide power to the power tool. The locking assembly 3 includes a lock tongue 31, a lock tongue receiving portion 32 and a trigger member 33, and the trigger member 33 can drive the lock tongue 31 to move relative to the lock tongue receiving portion 32.

[0338] The lock tongue receiving portion 32 includes a first receiving portion 3211 and a second receiving portion 3212 arranged front to back in the insertion direction; the lock tongue 31 engages with at least one of the first receiving portion 3211 and the second receiving portion 3212 to lock the battery pack 2 relative to the housing 1; the lock tongue 31 disengages from the first receiving portion 3211 and the second receiving portion 3212 to unlock the battery pack 2 relative to the housing 1.

[0339] The lock tongue 31 and the trigger member 33 are movably disposed on one of the housing 1 and the battery pack 2 , and the lock tongue receiving portion 32 is disposed on the other of the housing 1 and the battery pack 2 .

[0340] It can be understood that by providing two lock tongue receiving parts 32 arranged front and back in the insertion direction of the battery pack 2, when the trigger member 33 is accidentally touched and causes the lock tongue 31 to disengage from one of the first receiving part 3211 and the second receiving part 3212, the user can immediately perceive and reset the unlocking component in time, which can effectively reduce the risk of the battery pack 2 being unlocked due to accidental touch and abnormally detached from the power tool, thereby improving the safety of use.

[0341] Reference Figure 1 The battery pack 2 includes a battery pack housing 201, which extends along three orthogonal spatial directions (x, y, z) in the directions of the width axis W, the thickness axis T, and the height axis H of the battery pack housing 201. The battery pack housing 201 includes a width extending on the width axis W, a thickness extending on the thickness axis T, and a height extending on the height axis H. The trigger member 33 and the lock tongue 31 are both located on one side of a plane P1 that is perpendicular to the thickness axis and passes through the midpoint of the thickness; or, the trigger member 33 and the lock tongue 31 are both located on one side of a plane P2 that is perpendicular to the width axis and passes through the midpoint of the width.

[0342] In one embodiment, all trigger members 33 and all locking tongues 31 are located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness; or, all trigger members 33 and all locking tongues 31 are located on one side of a plane P2 perpendicular to the width axis and passing through the midpoint of the width.

[0343] It can be understood that all trigger members 33 and all lock tongues 31 are located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness, or all trigger members 33 and all lock tongues 31 are located on one side of a plane P2 perpendicular to the width axis and passing through the midpoint of the width, so that the operator can operate the trigger member 33 with one hand to control the battery pack 2 to unlock relative to the housing 1. In addition, all trigger members 33 and all lock tongues 31 are located on one side of the plane P1 or the plane P2, so that the structural design of the locking assembly 3 is simpler and more compact, which is conducive to reducing the volume of the power tool and facilitating the lightweight design of the power tool.

[0344] Reference Figure 3The battery pack 2 includes a battery pack housing 201, and the battery pack housing 201 includes a first outer contour surface 71 and a second outer contour surface 72. The first outer contour surface 71 and the second outer contour surface 72 are arranged opposite to each other in a direction perpendicular to the insertion direction of the battery pack 2. At least part of the lock tongue 31 or the lock tongue receiving portion 32 is arranged on the first outer contour surface 71, and the trigger member 33 and the lock tongue 31 are both located on one side of the second outer contour surface 72. In one embodiment, all the trigger members 33 and all the lock tongues 31 are located on one side of the second contour surface.

[0345] It can be understood that all the trigger members 33 and all the lock tongues 31 are located on one side of the second contour surface, which is convenient for the operator to operate the trigger member 33 with one hand to control the battery pack 2 to unlock relative to the housing 1. In addition, all the trigger members 33 and all the lock tongues 31 are located on one side of the second contour surface, making the structural design of the locking assembly 3 simpler and more compact, which is conducive to reducing the volume of the power tool and facilitating the lightweight design of the power tool.

[0346] The electric tool is configured such that: based on the external force applied to the trigger member 33, the lock tongue 31 is driven to move to the first moving stroke and the second moving stroke. The lock tongue 31 moves to the first moving stroke, so that the lock tongue 31 is disengaged from the first receiving portion 3211, and the battery pack 2 is not unlocked relative to the housing 1; the lock tongue 31 moves to the second moving stroke, so that the lock tongue 31 is disengaged from the second receiving portion 3212, and the battery pack 2 is unlocked relative to the housing 1. Further, the electric tool is configured such that: based on the external force applied to the trigger member 33, the lock tongue 31 is driven to move to the first moving stroke and the second moving stroke in sequence.

[0347] In one embodiment, the locking tongue 31 and the trigger member 33 are movably disposed on the housing 1 , and the first receiving portion 3211 and the second receiving portion 3212 are disposed on the battery pack 2 .

[0348] In another embodiment, the locking tongue 31 and the trigger member 33 are movably disposed on the battery pack 2 , and the first receiving portion 3211 and the second receiving portion 3212 are disposed on the housing 1 .

[0349] In one embodiment, referring to Figures 32 to 36 The locking assembly 3 includes only one locking tongue 31. The locking tongue 31 is engaged with the first receiving portion 3211 to lock the battery pack 2 in the first position relative to the housing 1; the locking tongue 31 is engaged with the second receiving portion 3212 to lock the battery pack 2 in the second position relative to the housing 1. Further, only when the locking tongue 31 is engaged with the first receiving portion 3211, the battery pack 2 is electrically connected to the power tool.

[0350] In one embodiment, there is only one trigger member 33 , and one trigger member 33 drives the locking tongue 31 to move the first moving stroke or the second moving stroke.

[0351] In one embodiment, the first receiving portion 3211 and the second receiving portion 3212 have different depths, and a step is provided between the first receiving portion 3211 and the second receiving portion 3212, so that the battery pack 2 can slide to a position where the locking tongue 31 is engaged with the second receiving portion 3212 after the locking tongue 31 is disengaged from the first receiving portion 3211.

[0352] It can be understood that the unlocking assembly only includes one trigger member 33, and the trigger member 33 drives the lock tongue 31 to move a first moving stroke, and the lock tongue 31 is disengaged from the first receiving portion 3211, or the trigger member 33 drives the lock tongue 31 to move a second moving stroke, and the lock tongue 31 is disengaged from the first receiving portion 3211 and the second receiving portion 3212, thereby unlocking the battery pack 2 relative to the housing 1.

[0353] As a specific example, refer to Figures 32 to 36 The locking assembly 3 includes a locking tongue 31, a trigger 33, a first receiving portion 3211, and a second receiving portion 3212. The locking tongue 31 is engaged with the first receiving portion 3211 to lock the battery pack 2 in the first position relative to the housing 1; the locking tongue 31 is engaged with the second receiving portion 3212 to lock the battery pack 2 in the second position relative to the housing 1. The trigger 33 drives the locking tongue 31 to move a first moving stroke, the locking tongue 31 is disengaged from the first receiving portion 3211, and the battery pack 2 slides from the first position to the second position relative to the housing 1, so that the locking tongue 31 is engaged with the second receiving portion 3212; the trigger 33 continues to drive the locking tongue 31 to move a second moving stroke, the locking tongue 31 is disengaged from the second receiving portion 3212, and the battery pack 2 is unlocked relative to the housing 1. The locking tongue 31 and the trigger 33 are movably arranged on the housing 1, and the first receiving portion 3211 and the second receiving portion 3212 are arranged on the battery pack 2. All trigger members 33 and all lock tongues 31 are located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness. The first outer contour surface 71 and the second outer contour surface 72 are arranged opposite to each other in the thickness direction of the battery pack 2, the first receiving portion 3211 and the second receiving portion 3212 are arranged on the first outer contour surface 71, and all trigger members 33 and all lock tongues 31 are located on one side of the second outer contour surface 72. Furthermore, all trigger members 33, all lock tongues 31, and all lock tongue receiving portions 32 are located on one side of the second outer contour surface 72.

[0354] As another specific example (not shown), the locking assembly 3 includes two locking tongues 31, a trigger 33, and a first receiving portion 3211 and a second receiving portion 3212. The two locking tongues 31 are respectively a first locking tongue 3111 and a second locking tongue 3112. The first locking tongue 3111 is engaged with the first receiving portion 3211, and the second locking tongue 3112 is engaged with the second receiving portion 3212. The trigger 33 first drives the first locking tongue 3111 to move a first moving stroke to achieve the separation of the first locking tongue 3111 from the first receiving portion 3211. The trigger 33 then drives the second locking tongue 3112 to move a second moving stroke to achieve the separation of the second locking tongue 3112 from the second receiving portion 3212, thereby achieving the unlocking of the battery pack 2 relative to the housing 1. The first locking tongue 3111, the second locking tongue 3112 and the trigger 33 are movably arranged on the housing 1, and the first receiving portion 3211 and the second receiving portion 3212 are arranged on the battery pack 2. All trigger members 33 and all lock tongues 31 are located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness. The first outer contour surface 71 and the second outer contour surface 72 are arranged opposite to each other in the thickness direction of the battery pack 2, the first receiving portion 3211 and the second receiving portion 3212 are arranged on the first outer contour surface 71, and all trigger members 33 and all lock tongues 31 are located on one side of the second outer contour surface 72. Furthermore, all trigger members 33, all lock tongues 31, and all lock tongue receiving portions 32 are located on one side of the second outer contour surface 72.

[0355] In one embodiment, referring to Figure 1 The electric tool is a chain saw 100, and the chain saw 100 includes a cutting assembly 62 and a top handle 63. The cutting assembly 62 is mounted on the housing 1, and includes a guide plate 641 and a saw chain 621 arranged around the guide plate 641, and the guide plate 641 provides support and guidance for the saw chain 621. The top handle 63 is for the user to hold. The cutting assembly 62 is arranged on the front side of the housing 1 in the length extension direction of the chain saw 100; the battery pack mounting portion 101 is arranged on the rear side of the housing 1 in the length extension direction of the chain saw 100; and the top handle 63 is arranged above the housing 1 in the height extension direction of the chain saw 100.

[0356] Need to explain, such as Figure 1 As shown, the length extension direction L1 of the chain saw 100 is the length extension direction of the guide plate 641 , the height extension direction H1 of the chain saw 100 is the height extension direction of the guide plate 641 , and the width extension direction W1 of the chain saw 100 is the thickness extension direction of the guide plate 641 .

[0357] The top handle 63 includes a top handle housing 631, and the trigger 33 and at least a portion of the lock tongue 31 are disposed in the top handle housing 631. It can be understood that the lock tongue 31 and the trigger 33 are movably disposed on the housing 1, and the lock tongue receiving portion 32 is disposed on the battery pack 2, and the trigger 33 can be disposed on the top handle housing 631, so that the user can hold the battery pack 2 with one hand and unlock it at the same time.

[0358] It should be noted that, among the aforementioned embodiments, all embodiments that do not conflict with each other can be freely combined to form new embodiments. Therefore, the embodiments already mentioned above will not be repeated here.

[0359] In a specific embodiment, referring to Figures 1 to 3 The electric tool comprises a housing 1 and a locking assembly 3. The housing 1 is provided with a battery pack installation portion 101, and the battery pack installation portion 101 is for inserting and connecting a battery pack 2, and the battery pack 2 is configured to provide power to the electric tool. The locking assembly 3 comprises a locking tongue 31, a locking tongue receiving portion 32 and a trigger member 33.

[0360] The lock tongue 31 and the trigger member 33 are movably disposed on one of the housing 1 and the battery pack 2, and the lock tongue receiving portion 32 is disposed on the other of the housing 1 and the battery pack 2. The lock tongue 31 is engaged with the lock tongue receiving portion 32 to lock the battery pack 2 relative to the housing 1; the lock tongue 31 is disengaged from the lock tongue receiving portion 32 to unlock the battery pack 2 relative to the housing 1.

[0361] The electric tool is configured such that an external force is applied to the trigger member 33 , and at least two different actions generated by the trigger member 33 directly or indirectly drive the lock tongue 31 to move relative to the lock tongue receiving portion 32 , thereby unlocking the battery pack 2 relative to the housing 1 .

[0362] It can be understood that the at least two different actions generated by the trigger member 33 are actions generated by the trigger member 33 due to the external force applied to the trigger member 33, such as the action generated by the trigger member 33 due to the force applied by the operator. The trigger member 33 is the object to which the external force is applied, and of course the object to which the force is applied includes but is not limited to the operator, and can also be other objects to which the force is applied. The way of applying the force includes direct contact operation, indirect operation to transfer the force to the trigger member 33, etc., but is not limited thereto.

[0363] At least two different actions of the trigger member 33 are required to unlock the battery pack 2 relative to the housing 1, that is, a single action is not sufficient to unlock the battery pack 2 relative to the housing 1, and the external force that causes an accidental touch can usually only cause the trigger member 33 to produce a single action. Therefore, by at least two different actions of the trigger member 33, the battery pack 2 can be unlocked relative to the housing 1, which can effectively reduce the risk of the battery pack 2 being unlocked due to an accidental touch.

[0364] Reference Figure 1The battery pack 2 includes a battery pack housing 201, which extends along three orthogonal spatial directions (x, y, z) in the directions of the width axis W, the thickness axis T, and the height axis H of the battery pack housing 201. The battery pack housing 201 includes a width extending on the width axis W, a thickness extending on the thickness axis T, and a height extending on the height axis H. The trigger member 33 is located on one side of a plane P1 that is perpendicular to the thickness axis and passes through the midpoint of the thickness; or, the trigger member 33 is located on one side of a plane P2 that is perpendicular to the width axis and passes through the midpoint of the width.

[0365] Optionally, all trigger members 33 and all lock tongues 31 are located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness; or, all trigger members 33 and all lock tongues 31 are located on one side of a plane P2 perpendicular to the width axis and passing through the midpoint of the width. Further optionally, all trigger members 33, all lock tongues 31, and all lock tongue receiving portions 32 are located on one side of a plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness; or, all trigger members 33, all lock tongues 31, and all lock tongue receiving portions 32 are located on one side of a plane P2 perpendicular to the width axis and passing through the midpoint of the width.

[0366] It should be noted that the battery pack housing 201 extends in the direction of the width axis W, the thickness axis T, and the height axis H, wherein the battery pack housing 201 is not limited to a standard rectangular parallelepiped, and may be other irregular shapes, such as edge chamfers, partial surface depressions or protrusions, etc. The directions of the width axis W, the thickness axis T, and the height axis H are only used to illustrate the approximate extension direction of the battery pack housing 201. The width of the battery pack housing 201 is the line segment between the two outermost points on the two opposite surfaces of the battery pack 2 in the direction of the width axis W and the foot of the perpendicular on the same width axis W; the midpoint of the width is the midpoint of the line segment. The thickness of the battery pack housing 201 is the line segment between the two outermost points on the two opposite surfaces of the battery pack 2 in the direction of the thickness axis T and the foot of the perpendicular on the same thickness axis T; the midpoint of the thickness is the midpoint of the line segment. The height of the battery pack housing 201 is the line segment between the two outermost points on the two opposite surfaces of the battery pack 2 in the direction of the height axis H and the foot of the perpendicular on the same height axis H.

[0367] It can be understood that all the trigger members 33 are located on one side of the plane P1 or the plane P2, which is convenient for the operator to operate the trigger member 33 with one hand to control the battery pack 2 to unlock relative to the housing 1. Among all the trigger members 33, all the lock tongues 31, and all the lock tongue receiving parts 32, more components are located on the same side of the plane P1 perpendicular to the thickness axis and passing through the midpoint of the thickness, which makes the structural design of the locking assembly 3 simpler and more compact, which is conducive to reducing the volume of the power tool and facilitating the lightweight design of the power tool.

[0368] Reference Figure 3 The battery pack 2 includes a battery pack housing 201, the battery pack housing 201 includes a first outer contour surface 71 and a second outer contour surface 72, the first outer contour surface 71 and the second outer contour surface 72 are arranged opposite to each other in a direction perpendicular to the insertion direction of the battery pack 2, at least a portion of the lock tongue 31 or the lock tongue receiving portion 32 is arranged on the first outer contour surface 71, and all the trigger members 33 are located on one side of the second outer contour surface 72. When the power tool is configured as a chain saw 100, the chain saw 100 includes: a cutting assembly 62, which is installed on the housing 1, and the cutting assembly 62 includes a guide plate 641 and a saw chain 621 arranged around the guide plate 641, and the guide plate 641 provides support and guidance for the saw chain 621. The battery pack 2 is inserted and installed into the battery pack installation portion 101 in a manner that the first outer contour surface 71 and the second outer contour surface 72 of the battery pack 2 are spaced and arranged opposite to each other along a first direction perpendicular to the plane where the guide plate 641 is located, at least a portion of the lock tongue 31 or the lock tongue receiving portion 32 is arranged on the first outer contour surface 71, and one or more of the trigger members 33 are located on one side of the second outer contour surface 72, or

[0369] The battery pack 2 is inserted and installed into the battery pack mounting portion 101 in a manner that the first outer contour surface 71 and the second outer contour surface 72 of the battery pack 2 are spaced apart and arranged relative to each other along a second direction parallel to the plane where the guide plate 641 is located, at least a portion of the lock tongue 31 or the lock tongue receiving portion 32 is arranged on the first outer contour surface 71, and one or more of the trigger members 33 are located on one side of the second outer contour surface 72.

[0370] Furthermore, the chain saw 100 is configured as a tree chain saw 100. The chain saw 100 also includes a top handle 63 for a user to hold; the cutting assembly 62 is arranged on the front side of the housing 1 in the length extension direction of the chain saw 100; the battery pack mounting portion 101 is arranged on the rear side of the housing 1 in the length extension direction of the chain saw 100; and the top handle 63 is arranged above the housing 1 in the height extension direction of the chain saw 100.

[0371] The number of the locking tongues 31 may be one or more, and the number of the locking tongue receiving parts 32 matched with the one or more locking tongues 31 may also be one or more; accordingly, the number of the triggering members 33 may also be one or more.

[0372] In this embodiment, the locking assembly 3 includes a lock tongue 31, a lock tongue receiving portion 32, and a trigger 33. The lock tongue 31 and the trigger 33 are movably arranged on the housing 1, and the lock tongue receiving portion 32 is arranged on the battery pack 2. All triggers 33, all lock tongues 31, and all lock tongue receiving portions 32 are located on one side of a plane P1 that is perpendicular to the thickness axis and passes through the midpoint of the thickness. The first outer contour surface 71 and the second outer contour surface 72 are arranged opposite to each other in the thickness direction of the battery pack 2, the lock tongue receiving portion 32 is arranged on the first outer contour surface 71, and all triggers 33, all lock tongues 31, and all lock tongue receiving portions 32 are located on one side of the second outer contour surface 72.

[0373] Based on the external force applied to the trigger member 33, the trigger member 33 generates at least two different actions including: one action generated by the trigger member 33, which realizes the movement of the trigger member 33, and the battery pack 2 is not unlocked relative to the housing 1; and another action generated by the trigger member 33, which realizes the movement of the trigger member 33 and drives the lock tongue 31 to move, so that the battery pack 2 is unlocked relative to the housing 1. For the convenience of description, one action is called the first action, and the other action is called the second action.

[0374] It should be noted that the first action and the second action are only used to represent two different actions, wherein the first and the second do not limit the order of the two actions, nor do they limit the continuity of the two actions. For example, there may be other actions between the two actions.

[0375] It can be understood that the first action of the trigger member 33 does not unlock the battery pack 2 relative to the housing 1, and the second action of the trigger member 33 unlocks the battery pack 2 relative to the housing 1. In other words, the battery pack 2 can be unlocked relative to the housing 1 only based on at least the first action and the second action of the trigger member 33.

[0376] Based on the external force applied to the trigger member 33, at least two different actions generated by the trigger member 33 include: one action generated by the trigger member 33, namely the first action, which realizes the movement of the trigger member 33 and the lock tongue 31 does not move; and another action generated by the trigger member 33, namely the second action, which realizes the movement of the trigger member 33 and drives the lock tongue 31 to move.

[0377] The locking assembly 3 also includes a lock tongue linkage member 34. One action generated by the trigger member 33, namely the first action, enables the trigger member 33 to be in a position allowing the lock tongue 31 to move; another action generated by the trigger member 33, namely the second action, enables the lock tongue linkage member 34 to move and drives the lock tongue 31 to move relative to the lock tongue receiving portion 32.

[0378] It should be noted that the trigger member 33 being in a position allowing the lock tongue 31 to move should be understood as: the user can directly apply force to the trigger member 33 to move the trigger member 33 without any other actions, and the movement of the trigger member 33 can drive the lock tongue 31 to move.

[0379] The lock tongue linkage member 34 is configured to move under the drive of the trigger member 33, thereby driving the lock tongue 31 to move. The trigger member 33 is movably arranged relative to the lock tongue linkage member 34 and can abut against the lock tongue linkage member 34. The lock tongue linkage member 34 is movably arranged relative to the lock tongue 31 and can abut against the lock tongue 31; or, the lock tongue linkage member 34 is relatively fixedly connected to the lock tongue 31. The lock tongue linkage member 34 pivots around a fixed pivot.

[0380] Reference Figures 3 to 8 The locking assembly 3 further includes a lock tongue linkage member 34. The trigger member 33 pivots around a pivot axis. The first action of the trigger member 33 enables the trigger member 33 to move to a position abutting against the lock tongue linkage member 34. The second action of the trigger member 33 enables the trigger member 33 to drive the lock tongue linkage member 34 to move and then drive the lock tongue 31 to move and disengage from the lock tongue receiving portion 32. In this embodiment, the first action of the trigger member 33 enables the trigger member 33 to move, and the lock tongue 31 does not move.

[0381] The lock tongue linkage 34 is pivotally arranged on the housing 1 or the battery pack housing 201 around a first pivot 335; the lock tongue linkage 34 includes a lock tongue abutment portion 341 and a trigger member abutment portion 342; the trigger member 33 is movably arranged on the housing 1 or the battery pack housing 201, and can move to abut against the trigger member abutment portion 342 and drive the lock tongue linkage 34 to pivot around the first pivot 335; the lock tongue abutment portion 341 is configured to abut against the lock tongue 31 and drive the lock tongue 31 to move in a direction away from the lock tongue receiving portion 32.

[0382] The trigger member 33 is pivotally connected to the housing 1 or the battery pack housing 201 around the second pivot 336, or the trigger member 33 is pivotally connected to the lock tongue linkage member 34 around the second pivot 336; the first action generated by the trigger member 33 enables the trigger member 33 to pivot around the second pivot 336 until it abuts against the lock tongue linkage member 34; the second action generated by the trigger member 33 enables the trigger member 33 to move and drive the lock tongue linkage member 34 to pivot around the first pivot 335, and the lock tongue linkage member 34 drives the lock tongue 31 to move and disengage from the lock tongue receiving portion 32. In this embodiment, the trigger member 33 is pivotally connected to the lock tongue linkage member 34 around the second pivot 336.

[0383] There is only one trigger member 33. One action generated by one trigger member 33, namely the first action, realizes the movement of the trigger member 33, and the battery pack 2 is not unlocked relative to the housing 1; another action generated by one trigger member 33, namely the second action, realizes the movement of the trigger member 33 and drives the lock tongue 31 to move, so that the battery pack 2 is unlocked relative to the housing 1.

[0384] There is only one trigger member 33 , and at least two different actions are sequentially generated by the one trigger member 33 .

[0385] It should be noted that the "sequentially" in "at least two different actions are sequentially generated on the trigger member 33" is only used to limit the two actions to occur one after the other, and is progressive. The subsequent unlocking action can only be applied after the previous unlocking action is completed. It does not limit the continuity of the two actions, and there may be other actions between the two actions.

[0386] In this embodiment, the first action of the trigger member 33 is to move the trigger member 33, the lock tongue 31 is immobile, and the battery pack 2 is not unlocked relative to the housing 1; the second action of the trigger member 33 is to move the trigger member 33 to drive the lock tongue 31 to move and disengage from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1. The first action and the second action are sequentially generated by one trigger member 33.

[0387] In one embodiment, one action of the trigger member 33 enables the trigger member 33 to move along a first travel trajectory; another action of the trigger member 33 enables the trigger member 33 to move along a second travel trajectory different from the first travel trajectory. The electric tool is configured such that: based on at least the first travel trajectory and the second travel trajectory, the battery pack 2 is unlocked relative to the housing 1. The first travel trajectory and the second travel trajectory of the trigger member 33 are not in a straight line.

[0388] It should be noted that the travel trajectory can be the moving trajectory of any point on the trigger member 33. The first travel trajectory and the second travel trajectory are not on a straight line, and the first travel trajectory and the second travel trajectory may be non-straight lines; the first travel trajectory and the second travel trajectory may be both straight lines, and the first travel trajectory and the second travel trajectory have different directions; the first travel trajectory and the second travel trajectory may be both straight lines, and the first travel trajectory and the second travel trajectory may be parallel and do not overlap, and other forms may also be possible, and are not limited thereto.

[0389] It can be understood that the first travel trajectory and the second travel trajectory are not in a straight line, which means that applying a force in a single direction on the trigger member 33 cannot unlock the battery pack 2 relative to the housing 1, and the external force that causes an accidental touch can usually only apply a force in a single direction. Therefore, the risk of the battery pack 2 being unlocked due to an accidental touch can be effectively reduced.

[0390] There is only one trigger member 33, and the first travel trajectory and the second travel trajectory are generated by the movement of the same trigger member 33; or there are at least two trigger members 33, and the first travel trajectory and the second travel trajectory are generated by the movement of different trigger members 33. The first travel trajectory and the second travel trajectory are in different directions or parallel.

[0391] In this embodiment, as shown in the figure, the locking assembly 3 includes only one trigger member 33, and the first travel trajectory and the second travel trajectory are generated by the sequential movement of the trigger member 33. Specifically, the trigger member 33 pivots around a pivot, and the trigger member 33 moves along the first travel trajectory to reach a position where the lock tongue 31 can be driven to move, and the trigger member 33 continues to move along the second travel trajectory to drive the lock tongue 31 to move and disengage from the lock tongue receiving portion 32. In this embodiment, since the trigger member 33 pivots, the first travel trajectory and the second travel trajectory are both arcs, and the two do not overlap.

[0392] In the related art, in order to solve the technical problem that the battery pack 2 of the power tool is easily unlocked by accidental touch, which in turn causes the battery pack 2 to be abnormally separated from the power tool, two pairs of interlocking mechanisms are set between the battery pack 2 and the housing 1 of the power tool, that is, the power tool is provided with two lock tongues 31, two lock tongue receiving parts 32 respectively matched with the two lock tongues 31, and two triggering members 33 respectively used to control the movement of the two lock tongues 31. However, a conventional battery pack 2 is usually provided with only one lock tongue receiving part 32, which makes the power tool incompatible with the existing battery pack 2 platform and cannot realize the function of preventing the battery pack 2 from being unlocked by accidental touch.

[0393] In one embodiment, the lock tongue 31 and the trigger member 33 are both movably disposed on the housing 1 , the lock tongue receiving portion 32 is both disposed on the battery pack 2 , there is only one lock tongue receiving portion 32 , and the lock tongue receiving portion 32 is configured to engage with at least one lock tongue 31 .

[0394] In this embodiment, the locking assembly 3 includes a lock tongue 31, a lock tongue receiving portion 32, and a trigger 33. Based on the external force applied to the trigger 33, the trigger 33 generates a first action, so that the trigger 33 moves, the lock tongue 31 does not move, and the battery pack 2 is not unlocked relative to the housing 1; based on the external force applied to the trigger 33, the trigger 33 generates a second action, so that the trigger 33 moves to drive the lock tongue 31 to move and disengage from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0395] This embodiment is only provided with one lock tongue receiving portion 32. By applying force to the trigger member 33, the trigger member 33 produces at least two different actions to unlock the battery pack 2 relative to the housing 1. This can effectively reduce the risk of the battery pack 2 being unlocked due to accidental touch, and is compatible with the existing battery pack 2 with only one lock tongue receiving portion 32.

[0396] The chainsaw 100 for working on trees is usually used by users when working on trees in a relatively complex working environment. Users usually hang the chainsaw 100 on their bodies when climbing trees. The chainsaw 100 will shake during the climbing process. Therefore, when the user is climbing a tree and working on a tree, the unlocking key of the battery pack 2 may touch a branch or the user's body, which may cause the battery pack 2 to be unlocked due to an accidental touch, causing the battery pack 2 to be abnormally detached from the chainsaw 100, causing harm to people or animals around, or damage to objects, posing a major safety hazard.

[0397] In this embodiment, the electric tool is a chain saw 100, which includes a cutting assembly 62 and a top handle 63. The cutting assembly 62 is mounted on the housing 1, and includes a guide plate 641 and a saw chain 621 arranged around the guide plate 641, and the guide plate 641 provides support and guidance for the saw chain 621. The top handle 63 is for the user to hold. The cutting assembly 62 is arranged on the front side of the housing 1 in the length extension direction of the chain saw 100; the battery pack mounting portion 101 is arranged on the rear side of the housing 1 in the length extension direction of the chain saw 100; and the top handle 63 is arranged above the housing 1 in the height extension direction of the chain saw 100.

[0398] Need to explain, such as Figure 1 As shown, the length extension direction L1 of the chain saw 100 is the length extension direction of the guide plate 641 , the height extension direction H1 of the chain saw 100 is the height extension direction of the guide plate 641 , and the width extension direction W1 of the chain saw 100 is the thickness extension direction of the guide plate 641 .

[0399] The top handle 63 includes a top handle housing 631, and the trigger 33 and at least a portion of the lock tongue 31 are disposed in the top handle housing 631. It can be understood that the lock tongue 31 and the trigger 33 are movably disposed on the housing 1, and the lock tongue receiving portion 32 is disposed on the battery pack 2, and the trigger 33 can be disposed on the top handle housing 631, so that the user can hold the battery pack 2 with one hand and unlock it at the same time.

[0400] In the electric tool of this embodiment, when the user needs to remove the battery pack 2, the battery pack 2 must be unlocked first, and unlocking the battery pack 2 specifically includes the following steps:

[0401] Step 1: The trigger member 33 is in the initial position without external force. Figure 6 In the state shown in FIG. 1 , the user applies an upward turning force to the operating end 3311 of the trigger member 33, so that the trigger member 33 pivots around the second pivot 336 to abut against the trigger member abutment portion 342 of the bolt linkage member 34, that is, Figure 7 The status shown;

[0402] Step 2: Further push the operating end 3311 of the trigger member 33, the trigger member 33 moves to drive the lock tongue linkage member 34 to pivot around the first pivot 335, and then the lock tongue abutting portion 341 of the lock tongue linkage member 34 pushes the lock tongue 31 abutting therewith to move, until the protrusion 311 of the lock tongue 31 is separated from the concave portion 321 of the lock groove, that is, Figure 8 In the state shown, the battery pack 2 is unlocked relative to the housing 1, and the battery pack 2 can be separated from the power tool;

[0403] Step 3, after the battery pack 2 is separated from the power tool, the user releases the trigger member 33, such as releasing a finger, and does not apply any force to the trigger member 33. At this time, the lock tongue 31 will be reset under the force of the lock tongue elastic reset member 36, and the trigger member 33 will be reset under the force of the reset member of the trigger member 33, so that the locking assembly 33 returns to its initial state.

[0404] It should be noted that, among the aforementioned embodiments, all embodiments that do not conflict with each other can be freely combined to form new embodiments. Therefore, the embodiments already mentioned above will not be repeated here.

[0405] The following is a detailed description of the specific structure of the embodiment in which there is only one trigger member 33:

[0406] Reference Figure 4 and Figure 5 The locking assembly 33 includes a lock tongue 31, a lock tongue receiving portion 32 and a trigger 33. The lock tongue 31 and the trigger 33 (which can be called a trigger mechanism) are movably disposed on one of the housing 1 and the battery pack housing 201, and the lock tongue receiving portion 32 is disposed on the other of the housing 1 and the battery pack housing 201. The lock tongue 31 can engage with the lock tongue receiving portion 32 to lock the battery pack 2 relative to the housing 1. The trigger 33 can act on the lock tongue 31 and link the lock tongue 31 to move, and the trigger 33 is configured to: based on at least two unlocking actions applied to the trigger 33, control the lock tongue 31 to disengage from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0407] The unlocking action is configured as follows: applying a force to the trigger member 33 and enabling the trigger member 33 to generate a movement stroke. The at least two unlocking actions applied to the trigger member 33 include two unlocking actions with different directions of the force applied to the trigger member 33 at least within a part of the movement stroke, or two unlocking actions with the same direction of force applied intermittently.

[0408] It should be noted that the two unlocking actions intermittently applied to the trigger member 33 should be understood as: the two unlocking actions cannot be continuously and evenly applied to the trigger member 33, and intermittent operation is required. As an example, the two unlocking actions are progressive, and the latter unlocking action can only be applied after the previous unlocking action is completed.

[0409] The lock tongue receiving portion 32 includes at least one stop space that can engage with the lock tongue 31 and stop the lock tongue 31; applying at least two unlocking actions to the trigger member 33 can drive the lock tongue 31 to move and break away from the stop space of the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0410] It can be understood that the disengagement of the lock tongue 31 from the lock tongue receiving portion 32 may be that the lock tongue 31 is disengaged from the stop of all the stop spaces of the lock tongue receiving portion 32 .

[0411] The battery pack 2 and the battery pack mounting portion 101 include a plurality of groups of mating surfaces located on different sides of the battery pack 2 , and a locking assembly 33 is disposed on one group of the mating surfaces.

[0412] The user can unlock the battery pack 2 relative to the housing 1 by applying at least two unlocking actions to the trigger member 33. Therefore, the risk of the battery pack 2 being unlocked due to accidental touch can be effectively reduced, which can reduce the risk of harming people or objects around the working environment and effectively reduce safety hazards.

[0413] Furthermore, the locking assembly 33 further includes a lock tongue elastic reset member 36, which acts on the lock tongue 31 to apply a force to the lock tongue 31 to move the lock tongue 31 toward the lock tongue receiving portion 32. As an example, the lock tongue elastic reset member 36 can be a spring.

[0414] The locking assembly 33 also includes a lock tongue linkage 34. Both the trigger 33 and the lock tongue linkage 34 are movably arranged, and the lock tongue linkage 34 can drive the lock tongue 31 to move. The at least two unlocking actions applied to the trigger 33 include a first unlocking action and a second unlocking action, and the first unlocking action and the second unlocking action respectively cause the trigger 33 to generate a first stroke and a second stroke. The first stroke is configured to move the trigger 33 to a position where the lock tongue linkage 34 can be triggered; the second stroke is configured to achieve movement of the lock tongue linkage 34 through the movement of the trigger 33 to drive the lock tongue 31 to move until the lock tongue 31 is disengaged from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1. The first stroke and the second stroke have different directions of the corresponding force applied to the trigger 33 within at least part of the moving stroke.

[0415] Furthermore, the trigger member 33 also includes a trigger member elastic reset member 334, and the trigger member 33 includes an initial position when the unlocking action is not applied to it. The trigger member elastic reset member 334 acts on the trigger member 33 to apply a force to the trigger member 33 to move it toward the initial position.

[0416] In one embodiment, the lock tongue linkage 34 is pivotally arranged on the housing 1 or the battery pack housing 201 around a first pivot 335, the lock tongue linkage 34 includes a lock tongue abutment portion 341 and a trigger member abutment portion 342, and the trigger member abutment portion 342 and the lock tongue abutment portion 341 pivot synchronously around the first pivot 335, the trigger member 33 is movably arranged on the housing 1 or the battery pack housing 201, and can move to abut against the trigger member abutment portion 342 and drive the trigger member abutment portion 342 to pivot around the first pivot 335, the lock tongue abutment portion 341 is used to abut against the lock tongue 31 and pivot with the trigger member abutment portion 342 around the first pivot 335 to drive the lock tongue 31 to move in a direction away from the lock tongue receiving portion 32. Specifically, the bolt linkage member 34 has a through shaft hole 343 for the first pivot 335 to pass through, and the bolt linkage member 34 is pivotally disposed on the first pivot 335 through the through shaft hole 343 .

[0417] It is understandable that the lock tongue linkage member 34 may be an integrated structure, on which the lock tongue abutment portion 341 and the trigger member abutment portion 342 are formed in different directions. The lock tongue linkage member 34 may also include two separate components, on which the lock tongue abutment portion 341 and the trigger member abutment portion 342 are formed respectively, and the two separate components are synchronized in an abutment-matching manner.

[0418] Furthermore, the bolt abutment portion 341 and the trigger member abutment portion 342 are located on both sides of a plane passing through the pivot axis of the first pivot shaft 335 and parallel to the movement direction of the bolt 31. Preferably, the angle between the extension direction of the bolt abutment portion 341 and the extension direction of the trigger member abutment portion 342 is 90° to 180°.

[0419] In one embodiment, the trigger member 33 is configured such that: the first unlocking action and the second unlocking action are both applied to the trigger member 33. The first stroke is configured to move the trigger member 33 to abut against the lock tongue linkage member 34; the second stroke is configured to further move the trigger member 33 and drive the lock tongue linkage member 34 to move, and the lock tongue linkage member 34 drives the lock tongue 31 to move until the lock tongue 31 is disengaged from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0420] In one embodiment, the lock tongue linkage member 34 is movably arranged relative to the lock tongue 31 and can abut against the lock tongue 31. It can be understood that the lock tongue linkage member 34 and the lock tongue 31 are two independent components.

[0421] In one embodiment, the lock tongue 31 is provided with a retaining wall 312 for abutting against the lock tongue linkage member 34. The lock tongue 31 is also provided with a reset member mounting portion 313, and one end of the lock tongue elastic reset member 36 is attached to the reset member mounting portion 313, and the other end abuts against the housing 1 or the battery pack housing 201.

[0422] Furthermore, the lock tongue 31 is provided with an embedding groove 314 for the lock tongue abutting portion 341 of the lock tongue linkage member 34 to extend into so as to limit the lock tongue abutting portion 341 in the pivoting direction. The reset member installation portion 313 is at least partially arranged in the embedding groove 314, and the middle opening of the side wall of the embedding groove 314 away from the protrusion 311 is for the lock tongue elastic reset member 36 to extend out, and the above-mentioned retaining wall 312 for abutting against the lock tongue linkage member 34 is formed on both sides of the side wall. As an example, the lock tongue elastic reset member 36 is a spring, and the reset member installation portion 313 is a column fixed in the embedding groove 314 and with a gradually narrowed head, so that the spring can be sleeved and clamped on the front end of the column. By arranging the reset member installation portion 313 in the embedding groove 314, the lock tongue 31 is more compact and smaller in size.

[0423] In one embodiment, the locking tongue 31 and the trigger member 33 are arranged on the housing 1, and the locking tongue receiving portion 32 is arranged on the battery pack 2; a through hole is provided on the housing 1 for the locking tongue 31 to extend into the battery pack mounting portion 101.

[0424] In another embodiment, the lock tongue 31 and the trigger member 33 are arranged on the battery pack housing 201, and the lock tongue receiving portion 32 is arranged on the housing 1; the battery pack housing 201 is provided with a through hole for the lock tongue 31 to extend into the battery pack mounting portion 101.

[0425] The lock tongue receiving portion 32 is a lock slot or a lock hole provided in the housing 1 or the battery pack housing 201. It can be understood that the lock slot or the slot constitutes a stop space of the lock tongue receiving portion 32 that can stop the lock tongue 31.

[0426] The lock tongue 31 includes at least one protrusion 311, and the lock tongue receiving portion 32 includes at least one recess 321. The protrusion 311 of the lock tongue 31 is engaged with the recess 321 of the lock tongue receiving portion 32, so that the battery pack 2 can be locked relative to the housing 1; the protrusion 311 of the lock tongue 31 is disengaged from the recess 321 of the lock tongue receiving portion 32, so that the battery pack 2 can be unlocked relative to the housing 1.

[0427] It should be noted that, in this embodiment, a trigger member 33 should be understood as one trigger member 33 rather than a group of trigger members 33, and at least two unlocking actions act on the same trigger member 33. Specifically, the two unlocking actions act on the trigger member 33 successively.

[0428] As an example, the lock tongue receiving portion 32 includes a lock groove provided in the housing 1 or the battery pack housing 201. The lock tongue 31 includes a protrusion 311, and the lock groove includes a recess 321 that matches the protrusion 311. The protrusion 311 of the lock tongue 31 is engaged with the recess 321 of the lock groove, so that the battery pack 2 can be locked relative to the housing 1. That is, a protrusion 311 extends into a recess 321, so that the battery pack 2 is locked relative to the housing 1 and cannot move. The lock tongue 31 is unlocked and engaged with the lock tongue receiving portion 32, that is, the protrusion 311 of the lock tongue 31 is disengaged from the recess 321 of the lock groove, so that the battery pack 2 can move relative to the housing 1.

[0429] As another example, the lock tongue receiving portion 32 includes a lock slot provided on the housing 1 or the battery pack housing 201. The lock tongue 31 includes a plurality of protrusions 311, and the lock slot includes a plurality of recesses 321 corresponding to the plurality of protrusions 311. It is understandable that the lock tongue 31 can be an integral structure, such as extending a plurality of protrusions 311 on a main body, and the plurality of protrusions 311 all move synchronously with the main body; the lock tongue 31 can also include a plurality of discrete structures, each of which has a protrusion 311 formed thereon, and the plurality of discrete structures all move synchronously with the movement of the trigger member 33, that is, the protrusions 311 of the plurality of discrete structures synchronously engage the plurality of recesses 321 of the lock slot to lock the battery pack 2, or synchronously disengage the plurality of recesses 321 of the lock slot to unlock the battery pack 2.

[0430] As another example, the lock tongue receiving portion 32 includes a lock groove provided in the housing 1 or the battery pack housing 201. The lock tongue 31 includes one or more protrusions 311, and the lock groove includes one or more recesses 321 matched with the one or more protrusions 311, and the protrusions 311 and the recesses 321 are not matched one-to-one. For example, the lock tongue 31 may include a plurality of ratchet claws, and the lock groove may include a ratchet groove matched with the plurality of ratchet claws; or a protrusion 311 may sequentially engage with a plurality of lock grooves, etc., which are not listed here one by one.

[0431] Furthermore, for a lock tongue 31 having one protrusion 311, the trigger 33 controls the unlocking of the battery pack 2 in such a way that the first unlocking action acting on the trigger 33 does not drive the protrusion 311 to move, and the second unlocking action acting on the trigger 33 drives the protrusion 311 to disengage from the recess 321; or the first unlocking action acting on the trigger 33 first controls the protrusion 311 to partially disengage from the recess 321, and the second unlocking action acting on the trigger 33 controls the protrusion 311 to completely disengage from the recess 321. For a lock tongue 31 having multiple protrusions 311, the trigger 33 controls the unlocking of the battery pack 2 in such a way that the multiple protrusions 311 of the lock tongue 31 are controlled to disengage from the recess 321 synchronously, or the multiple protrusions 311 of the lock tongue 31 are controlled to move sequentially and disengage from the recess 321 sequentially. Other methods are also possible, which are not listed here one by one.

[0432] It should be noted that a trigger member 33 should be understood as being able to link all the protrusions 311 of the lock tongue 31 to disengage all the recesses 321 of the lock tongue receiving portion 32, thereby unlocking the battery pack 2. The matching structure of the lock tongue 31 and the lock tongue receiving portion 32 of the present application is not limited thereto, and can be any structure that can be linked and controlled to unlock by the same trigger member 33, which is not limited here.

[0433] In one embodiment, the trigger member 33 is pivotally connected to the housing 1 or the battery pack housing 201 around the second pivot 336; or the trigger member 33 is pivotally connected to the lock tongue linkage member 34 around the second pivot 336. The first unlocking action is configured to flip the trigger member 33 so that it pivots around the second pivot 336 until it abuts against the lock tongue linkage member 34; the second unlocking action is configured to further push the trigger member 33, so that the trigger member 33 moves and drives the lock tongue linkage member 34 to pivot around the first pivot 335, and the lock tongue linkage member 34 drives the lock tongue 31 to move until the lock tongue 31 is disengaged from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0434] As an example, the trigger member 33 is pivotally connected to the trigger member abutment portion 342 of the bolt linkage member 34 around the second pivot 336 .

[0435] Furthermore, the trigger member elastic return member 334 is a torsion spring clamped between the trigger member 33 and the housing 1 or the battery pack housing 201 .

[0436] The housing 1 or the battery pack housing 201 is provided with a trigger member 33 mounting slot 4, and the trigger member 33 is mounted at the trigger member 33 mounting slot 4 and does not protrude from the housing 1 or the battery pack housing 201. This structure makes it difficult for the trigger member 33 to be accidentally touched. Furthermore, the trigger member 33 mounting slot 4 is provided with a limiting slot wall 41 for limiting the range of motion of the trigger member 33 and a slot hole 42 for the trigger member 33 to extend into the housing 1 or the battery pack housing 201, and an operating gap 43 is left between the end of the trigger member 33 for applying the unlocking action and the trigger member 33 mounting slot.

[0437] Reference Fig.12 and Fig.15 In one embodiment, a sliding guide mechanism 5 is provided between the battery pack 2 and the battery pack mounting portion 101, and the sliding guide mechanism 5 includes a slide groove 52 and a slide rail 51 that cooperates with the slide groove 52. The slide groove 52 is provided on one of the battery pack 2 and the battery pack mounting portion 101, and the slide rail 51 that cooperates with the slide groove 52 is provided on the other. The battery pack 2 is connected to the battery pack mounting portion 101 through the slide groove 52 and the slide rail 51.

[0438] It is understandable that the power tool of the present application can be a chain saw 100, a lawn mower, a hair dryer, a pruning machine, etc., which are powered by the battery pack 2. As an example, the power tool can be a chain saw 100, and further, the power tool can be a tree chain saw 100.

[0439] The tree-climbing chainsaw 100 is a chainsaw 100 used for operation on trees. The operating environment is relatively complex. The user will hang the chainsaw 100 on the body when climbing a tree. The chainsaw 100 will shake during the climbing process. Therefore, when the user is climbing a tree and working on the tree, the unlocking key of the battery pack 2 may touch the tree branches or the user's body, which may cause the battery pack 2 to be unlocked due to accidental touch, causing the battery pack 2 to be abnormally detached from the chainsaw 100, causing harm to people or animals around, or damage to objects, posing a major safety hazard.

[0440] Reference Figures 1 to 3 In this embodiment, the electric tool is a tree chain saw 100 as an example. The electric tool includes a housing 1, a battery pack 2 and a locking assembly 33. The housing 1 is provided with a battery pack mounting portion 101, and the battery pack 2 is detachably attached to the battery pack mounting portion 101. The battery pack 2 is used to provide electric energy to the electric tool, and the battery pack 2 includes a battery pack housing 201.

[0441] Reference Figure 4 and Figure 5 The locking assembly 33 includes a locking tongue 31, a locking tongue receiving portion 32, a trigger member 33 and a locking tongue elastic reset member 36. The locking tongue receiving portion 32 is configured as a locking groove. The locking tongue 31 includes a convex portion 311, and the locking groove includes a concave portion 321. The convex portion 311 of the locking tongue 31 can be engaged with the concave portion 321 of the locking groove to lock the battery pack 2 relative to the housing 1. As an example, the locking tongue 31 and the trigger member 33 are movably arranged on the housing 1, and the locking groove is arranged on the battery pack housing 201. Specifically, the housing 1 is provided with a receiving cavity 102 that can accommodate the locking tongue 31 and the trigger member 33, and the receiving cavity 102 has a through hole 1021 for allowing the locking tongue 31 to extend into the battery pack mounting portion 101. The locking tongue elastic reset member 36 acts on the locking tongue 31 to apply a force to the locking tongue 31 in the direction of the locking groove.

[0442] The battery pack 2 and the battery pack mounting portion 101 include a plurality of mating surfaces located on different sides of the battery pack 2, and a locking assembly 33 is provided on one of the mating surfaces. As an example, the battery pack mounting portion 101 is a battery pack 2 accommodating chamber with an upper opening. The electric tool includes a working head, with the side of the battery pack 2 close to the working head of the electric tool being the front side, and the side of the battery pack 2 away from the working head of the electric tool being the rear side. Taking the tree chain saw 100 as an example, the working head of the tree chain saw 100 is its cutting assembly 62. Specifically, the battery pack mounting portion 101 semi-wrappedly mounts the battery pack 2, the battery pack mounting portion 101 is open at the top, and the battery pack 2 and the battery pack mounting portion 101 include five mating surfaces located on the front side, rear side, left side, right side and bottom side of the battery pack 2, and the locking assembly 33 is provided on a group of mating surfaces located on the front side of the battery pack 2.

[0443] Reference Figures 6 to 8 , the trigger member 33 can act on the lock tongue 31 and link the lock tongue 31 to move. The trigger member 33 includes a trigger member 33, a lock tongue link member 34 and a trigger member elastic reset member 334. The trigger member 33 and the lock tongue link member 34 are both movably arranged, and the lock tongue link member 34 can drive the lock tongue 31 to move. Specifically, the lock tongue link member 34 is pivotally arranged on the housing 1 around a first pivot 335, and the lock tongue link member 34 includes a lock tongue abutment portion 341 and a trigger member abutment portion 342, and the trigger member abutment portion 342 and the lock tongue abutment portion 341 are synchronously pivotally moved around the first pivot 335. The trigger member 33 is pivotally connected to the trigger member abutment portion 342 of the lock tongue linkage member 34 around the second pivot 336, and can move to abut against the trigger member abutment portion 342 and drive the trigger member abutment portion 342 to pivot around the first pivot 335. The lock tongue abutment portion 341 is used to abut against the lock tongue 31 and pivot along with the trigger member abutment portion 342 around the first pivot 335 to drive the lock tongue 31 to move away from the lock slot. The trigger member 33 includes an initial position when no unlocking action is applied to it, and the trigger member elastic reset member 334 acts on the trigger member 33 to apply a force to the trigger member 33 to move it toward the initial position. As an example, the first pivot 335 is fixedly arranged on the housing 1, and the trigger member elastic reset member 334 is a torsion spring clamped between the trigger member 33 and the housing 1.

[0444] The lock tongue abutment portion 341 and the trigger member abutment portion 342 are located on both sides of a plane passing through the pivot axis of the first pivot shaft 335 and parallel to the movement direction of the lock tongue 31. Preferably, the angle between the extension direction of the lock tongue abutment portion 341 and the extension direction of the trigger member abutment portion 342 is 90° to 180°. More preferably, the angle between the extension direction of the lock tongue abutment portion 341 and the extension direction of the trigger member abutment portion 342 is 150° to 180°.

[0445] Reference Fig. 9The lock tongue abutment portion 341 includes an extension portion 341a substantially arranged along its extension direction and an abutment portion 341b connected to the outer end of the extension portion 341a, and the abutment portion 341b has a smoothly transitioned outer contour in the pivot direction of the lock tongue abutment portion 341. As an example, the lock tongue abutment portion 341 may include two abutment portions 341b symmetrically arranged, and the two abutment portions 341b are connected as a whole through the extension portion 341a.

[0446] In this embodiment, the bolt linkage member 34 includes two discrete components, namely, an upper linkage member 342a and a lower linkage member 342b. The trigger member abutting portion 342 is formed on the upper linkage member 342a, and the bolt abutting portion 341 is formed on the lower linkage member 342b. The upper linkage member 342a and the lower linkage member 342b are synchronously linked in abutment and matching manner. Specifically, the upper linkage member 342a and the lower linkage member 342b are pivotally connected to the first pivot 335, respectively. An upper boss 342a1 is formed on the outer edge of the upper linkage member 342a, and a lower boss 342b1 is formed on the outer edge of the lower linkage member 342b. The upper boss 342a1 and the lower boss 342b1 abut against each other through an abutment surface arranged radially along the first pivot 335, so as to realize the synchronous linkage of the upper linkage member 342a and the lower linkage member 342b.

[0447] The trigger member 33 is configured to: based on two unlocking actions applied to the trigger member 33, control the protrusion 311 of the lock tongue 31 to disengage from the recess 321 of the lock slot, so that the battery pack 2 is unlocked relative to the housing 1. The two unlocking actions include a first unlocking action and a second unlocking action, and both the first unlocking action and the second unlocking action act on the trigger member 33. The first unlocking action is configured to flip the trigger member 33 so that it pivots around the second pivot 336 until it abuts against the lock tongue linkage 34; the second unlocking action is configured to further push the trigger member 33 so that the trigger member 33 moves and drives the lock tongue linkage 34 to pivot around the first pivot 335, and the lock tongue linkage 34 drives the lock tongue 31 to move until the protrusion 311 of the lock tongue 31 disengages from the recess 321 of the lock slot. The directions of the forces applied to the trigger member 33 corresponding to the first unlocking action and the second unlocking action are different at least within a portion of the moving stroke. In this embodiment, the direction of the force applied to the trigger member 33 corresponding to the first unlocking action is approximately as follows: Figure 7 In the direction indicated by the arrow a, the direction of the force applied to the trigger member 33 corresponding to the second unlocking action is approximately as follows: Figure 8 In the direction indicated by arrow b.

[0448] Reference Figures 6 to 8The housing 1 is provided with a trigger member 33 mounting slot 4, the trigger member 33 mounting slot 4 is provided with a limiting slot wall 41 for limiting the motion range of the trigger member 33 and a slot hole 42 for the trigger member 33 to extend into the housing 1 so that the trigger member 33 abuts against the lock tongue linkage member 34, and an operating gap 43 is left between the end of the trigger member 33 for applying the unlocking action and the trigger member 33 mounting slot 4. For ease of understanding, the end of the trigger member 33 for applying the unlocking action is defined as the operating end 3311 of the trigger member 33, and the end of the trigger member 33 abutting against the lock tongue linkage member 34 is defined as the trigger end 3312 of the trigger member 33. Specifically, the trigger member 33 mounting slot 4 is connected to the inside of the housing 1, that is, connected to the accommodating cavity 102. When the trigger member 33 is not subjected to the unlocking action, under the action of the torsion spring, the operating end 3311 of the trigger member 33 abuts against the upper part of the limiting groove wall 41, and the upper surface of the trigger member 33 is basically flush with the surface of the casing 1; when the trigger member 33 is subjected to the unlocking action, the trigger member 33 can pivot around the second pivot 336, and the trigger end 3312 of the trigger member 33 extends from the slot 42 into the casing 1 and abuts against the lock tongue linkage member 34; an operating gap is reserved between the operating end 3311 of the trigger member 33 and the mounting slot 4 of the trigger member 33 for the operator to insert his finger so as to apply a flip unlocking action to the trigger member 33, the limiting groove wall 41 is recessed downward relative to the upper end surface of the mounting slot 4 of the trigger member 33, and an operating gap 43 is formed between the operating end 3311 of the trigger member 33 and the limiting groove wall 41 and the mounting slot 4 of the trigger member 33 for the operator to insert his finger The operator's finger can be inserted into the bottom of the trigger member 33 from the operating gap 43 at the front side of the operating end 3311 of the trigger member 33 , making it easier to flip up the trigger member 33 .

[0449] Reference Fig.10 The lock tongue 31 is provided with an embedding groove 314 for the lock tongue abutting portion 341 of the lock tongue linkage member 34 to extend into so as to limit the lock tongue abutting portion 341 in the pivoting direction thereof, and is also provided with a reset member mounting portion 313, one end of the lock tongue elastic reset member 36 is attached to the reset member mounting portion 313, and the other end abuts against the housing 1. The lock tongue abutting portion 341 of the lock tongue linkage member 34 includes two abutting portions 341b. The reset member mounting portion 313 is at least partially disposed in the embedding groove 314, and the middle opening of the side wall of the embedding groove 314 away from the protrusion 311 is for the lock tongue elastic reset member 36 to extend out, and two retaining walls 312 are formed on both sides of the side wall for respectively abutting against the two abutting portions 341b of the lock tongue linkage member 34. Specifically, the bolt elastic reset member 36 is a spring, and the reset member mounting portion 313 is a column fixed in the embedding groove 314 and having a gradually narrowed head, so that one end of the spring can be sleeved and clamped on the front end of the column, and the cross section of the column is a cross. A spring limiting groove 103 is provided at a corresponding position on the housing 1 to limit the other end of the spring.

[0450] As an example, the longitudinal section of the recessed portion 321 of the lock slot is a trumpet shape that gradually narrows from the outside to the inside, and the outer part of the longitudinal section of the protruding portion 311 of the lock tongue 31 gradually narrows in the direction close to the lock slot. This structure is conducive to the alignment of the lock tongue 31 and the lock slot, and has low requirements on the accuracy of the lock tongue 31 in the movement direction. The protruding portion 311 of the lock tongue 31 is provided around a limiting surface that cooperates with the outer end surface of the recessed portion 321 of the lock slot, so that the lock tongue 31 and the lock slot can be stably engaged, which can reduce the relative movement between the battery pack 2 and the housing 1.

[0451] A sliding guide mechanism 5 is provided between the battery pack 2 and the battery pack mounting portion 101, and the sliding guide mechanism 5 includes a slide groove 52 and a slide rail 51 that cooperates with the slide groove 52. The slide groove 52 is provided on the battery pack mounting portion 101, and the slide rail 51 that cooperates with the slide groove 52 is provided on the battery pack 2. The battery pack 2 is connected to the battery pack mounting portion 101 through the cooperation of the slide rail 51 and the slide groove 52 to guide the movement, so as to realize the mutual guidance and limitation between the battery pack 2 and the battery pack mounting portion 101. As an example, the battery pack mounting portion 101 is open at the top, and the battery pack 2 is inserted into the battery pack mounting portion 101 from top to bottom along the longitudinal direction.

[0452] Specifically, as mentioned above, the electric tool includes a working head, with the side of the battery pack 2 close to the working head of the electric tool as the front side, and the side of the battery pack 2 away from the working head of the electric tool as the rear side. The battery pack installation portion 101 is open at the top, and the battery pack 2 and the battery pack installation portion 101 include five groups of mating surfaces located at the front side, rear side, left side, right side and bottom side of the battery pack 2. The slide groove 52 and the slide rail 51 are arranged on a group of mating surfaces located at the front side of the battery pack 2. Furthermore, the locking assembly 33 is arranged on the mating surface between the slide rail 51 and the slide groove 52.

[0453] In the power tool of this embodiment, when the user installs the battery pack 2, the slide rail 51 is aligned with the slide groove 52, and the battery pack 2 is inserted into the battery pack installation portion 101. When the battery pack 2 is inserted into place, the lock tongue 31 can be engaged with the lock groove on the battery pack 2 under the action of the lock tongue elastic return member 36, that is, the protrusion 311 of the lock tongue 31 extends into the recessed portion 321 of the lock groove, so that the battery pack 2 is locked relative to the housing 1.

[0454] When the user needs to disassemble the battery pack 2, the battery pack 2 must be unlocked first, which specifically includes the following steps:

[0455] Step 1.1, i.e. the first unlocking action, the trigger member 33 is in the initial position without the action of external force, i.e. Figure 6 In the state shown in FIG. 1 , the user applies an upward turning force to the operating end 3311 of the trigger member 33, so that the trigger member 33 pivots around the second pivot 336 until the trigger end 3312 of the trigger member 33 abuts against the trigger member abutment portion 342 of the bolt linkage member 34, that is, Figure 7The status shown;

[0456] In step 1.2, i.e., the second unlocking action, the operating end 3311 of the trigger member 33 is further pushed, and the trigger end 3312 of the trigger member 33 moves synchronously with the operating end 3311 of the trigger member 33, which will drive the trigger member abutting portion 342 of the lock tongue linkage member 34 to pivot around the first pivot 335, thereby driving the lock tongue abutting portion 341 of the lock tongue linkage member 34 to pivot synchronously around the first pivot 335, pushing the lock tongue 31 abutting therewith to move, until the convex portion 311 of the lock tongue 31 is disengaged from the concave portion 321 of the lock groove, i.e., Figure 8 In the state shown, the battery pack 2 is unlocked relative to the housing 1, and the battery pack 2 can be separated from the electric tool.

[0457] Step 1.3, after the battery pack 2 is separated from the power tool, the user releases the trigger member 33, such as releasing a finger, and does not apply any force to the trigger member 33. At this time, the lock tongue 31 will be reset under the force of the lock tongue elastic reset member 36, and the trigger member 33 will be reset under the force of the torsion spring, so that the locking assembly 33 returns to its initial state.

[0458] It is understandable that, in the second unlocking action, the pushing action applied to the trigger member 33 may also be a toggling action or other actions that can have the same effect, which will not be described in detail here.

[0459] With the electric tool of the present embodiment, the user can unlock the battery pack 2 only by performing two unlocking actions, namely flipping and pushing, on the trigger member 33. The battery pack 2 cannot be unlocked by a normal touch of a tree branch, which can effectively reduce the risk of unlocking the battery pack 2 due to accidental touch, avoid harming people or objects around the working environment, and effectively reduce safety hazards.

[0460] In another embodiment, referring to Figures 11 to 16 The trigger member 33 is guided and moved along the first direction by the guide structure 337. The first unlocking action is configured to press the trigger member 33 to make it move along the first direction until it abuts against the lock tongue linkage member 34; the second unlocking action is configured to push the trigger member 33 along the second direction to move the trigger member 33 and drive the lock tongue linkage member 34 to pivot around the first pivot 335, and the lock tongue linkage member 34 drives the lock tongue 31 to move until the lock tongue 31 is disengaged from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0461] Further, refer to Figure 20 to Figure 22The guide structure 337 includes a guide block 3371 pivotally arranged around the first pivot axis 335 and a guide groove 3372 arranged on the trigger member 33 and matched with the guide block 3371. At this time, the first unlocking action is configured to press the trigger member 33 to move it along the first direction until it abuts against the lock tongue linkage member 34; the second unlocking action is configured to push the trigger member 33 along the second direction, so that the trigger member 33 pivots around the first pivot axis 335 with the guide block 3371, and drives the lock tongue linkage member 34 to pivot around the first pivot axis 335, and the lock tongue linkage member 34 drives the lock tongue 31 to move until the lock tongue 31 is disengaged from the lock tongue receiving portion 32, so that the battery pack 2 is unlocked relative to the housing 1.

[0462] The trigger member elastic return member 334 is a spring disposed between the guide block 3371 and the guide groove 3372 .

[0463] Reference Figures 17 to 19 A trigger member 33 mounting slot 4 is provided on the housing 1 or the battery pack housing 201, a limiting wall 44 is provided at the trigger member 33 mounting slot 4, the trigger member 33 is provided with a stopping surface 3313 matching with the limiting wall 44, and the limiting wall 44 is used to stop the stopping surface 3313, so that the trigger member 33 moves in the first direction before leaving the stopping front of the limiting wall 44 and cannot move in the second direction.

[0464] The housing 1 or the battery pack housing 201 is also provided with a guide wall 45, which is used to guide the trigger member 33 to move along the second direction. As an example, the guide wall 45 extends substantially along the second direction. The guide wall 45 can guide the trigger member 33 to a certain extent, making it easier for the user to find a force angle that matches the second direction, making the unlocking action of the battery pack 2 easier to operate.

[0465] Reference Fig.23 The trigger member 33 includes a pressing surface 3314 substantially perpendicular to the first direction and a pushing surface 3315 substantially perpendicular to the second direction.

[0466] Reference Figures 11 to 14 In this embodiment, the electric tool is a tree chain saw 100 as an example. The electric tool includes a housing 1, a battery pack 2 and a locking assembly 33. The housing 1 is provided with a battery pack mounting portion 101, and the battery pack 2 is detachably attached to the battery pack mounting portion 101. The battery pack 2 is used to provide electric energy to the electric tool, and the battery pack 2 includes a battery pack housing 201.

[0467] Reference Fig.15 and Fig.16The locking assembly 33 includes a locking tongue 31, a locking tongue receiving portion 32, a trigger member 33 and a locking tongue elastic reset member 36. The locking tongue receiving portion 32 is configured as a locking groove. The locking tongue 31 includes a convex portion 311, and the locking groove includes a concave portion 321. The convex portion 311 of the locking tongue 31 can be engaged with the concave portion 321 of the locking groove to lock the battery pack 2 relative to the housing 1. As an example, the locking tongue 31 and the trigger member 33 are movably arranged on the housing 1, and the locking groove is arranged on the battery pack housing 2012. Specifically, the housing 1 is provided with a receiving cavity 102 that can accommodate the locking tongue 31 and the trigger member 33, and the receiving cavity 102 has a through hole 1021 for allowing the locking tongue 31 to extend into the battery pack mounting portion 101. The locking tongue elastic reset member 36 acts on the locking tongue 31 to apply a force to the locking tongue 313 in the direction of the locking groove.

[0468] The battery pack 2 and the battery pack mounting portion 101 include a plurality of mating surfaces located on different sides of the battery pack 2, and a locking assembly 33 is provided on one of the mating surfaces. As an example, the battery pack mounting portion 101 is a battery pack 2 accommodating chamber with an opening at the top. The power tool includes a working head, and the working head of the tree chain saw 100 is its cutting assembly 62, with the side of the battery pack 2 close to the working head of the power tool being the front side, and the side of the battery pack 2 away from the working head of the power tool being the rear side. The battery pack mounting portion 101 semi-wrappedly mounts the battery pack 2, specifically, the battery pack mounting portion 101 is open at the top, and the battery pack 2 and the battery pack mounting portion 101 include five mating surfaces located on the front, rear, left, right and bottom sides of the battery pack 2, and the locking assembly 33 is provided on a group of mating surfaces located on the front side of the battery pack 2.

[0469] Reference Figures 17 to 19 , the trigger member 33 can act on the lock tongue 31 and link the lock tongue 31 to move. The trigger member 33 includes a trigger member 33, a lock tongue link member 34 and a trigger member elastic reset member 334. The trigger member 33 and the lock tongue link member 34 are both movably arranged, and the lock tongue link member 34 can drive the lock tongue 31 to move. Further, the lock tongue link member 34 is pivotally arranged on the housing 1 around a first pivot 335, and the lock tongue link member 34 includes a lock tongue abutment portion 341 and a trigger member abutment portion 342, and the trigger member abutment portion 342 and the lock tongue abutment portion 341 are synchronously pivotally moved around the first pivot 335. Specifically, the lock tongue link member 34 has a through shaft hole 343 for the first pivot 335 to pass through, and the lock tongue link member 34 is pivotally arranged on the first pivot 335 through the through shaft hole 343.

[0470] Reference Figure 20 to Figure 22The trigger member 33 is guided and moved along the first direction by the guide structure 337, and can move to abut against the trigger member abutment portion 342 and drive the trigger member abutment portion 342 to pivot around the first pivot 335. The lock tongue abutment portion 341 is used to abut against the lock tongue 31 and pivot along with the trigger member abutment portion 342 around the first pivot 335, thereby driving the lock tongue 31 to move away from the lock slot. The trigger member 33 includes an initial position when no unlocking action is applied to it, and the trigger member elastic reset member 334 acts on the trigger member 33 to apply a force to the trigger member 33 to move it toward the initial position. As an example, the first pivot 335 is fixedly set on the housing 1, and the guide structure 337 includes a guide block 3371 pivotally set around the first pivot 335 and a guide groove 3372 provided on the trigger member 33 and matched with the guide block 3371. The trigger member elastic return member 334 is a spring disposed between the guide block 3371 and the guide groove 3372 .

[0471] Specifically, the guide structure 337 is a linear guide structure 337, and the guide block 3371 includes a plurality of guide portions 3371a, and a space for accommodating the trigger elastic reset member 334 is formed in the middle of the plurality of guide portions 3371a. The trigger 33 is formed with a guide groove 3372 at the lower end thereof, which matches with the plurality of guide portions 3371a of the guide block 3371, and a space for accommodating the trigger elastic reset member 334 is formed in the middle of the guide groove 3372, and a spring mounting seat 3372a for mounting the trigger elastic reset member 334 is provided. The guide block 3371 is also provided with a guide boss 3371b for abutting against the lower end surface of the trigger 33, so as to limit the guide movement stroke of the trigger 33.

[0472] The lock tongue abutment portion 341 and the trigger member abutment portion 342 are located on both sides of a plane passing through the pivot axis of the first pivot shaft 335 and parallel to the movement direction of the lock tongue 31. Preferably, the angle between the extension direction of the lock tongue abutment portion 341 and the extension direction of the trigger member abutment portion 342 is 90° to 180°. More preferably, the angle between the extension direction of the lock tongue abutment portion 341 and the extension direction of the trigger member abutment portion 342 is 150° to 180°.

[0473] The lock tongue abutment portion 341 includes an extension portion 341a arranged substantially along its extension direction and an abutment portion 341b connected to the outer end of the extension portion 341a, wherein the abutment portion 341b has a smoothly transitioned outer contour in the pivot direction of the lock tongue abutment portion 341. As an example, the lock tongue abutment portion 341 may include two abutment portions 341b arranged symmetrically, and the two abutment portions 341b are connected as a whole through the extension portion 341a.

[0474] In this embodiment, the lock tongue linkage member 34 is an integrated structure, and the lock tongue abutting portion 341 and the trigger member abutting portion 342 are formed on the integrated structure along different directions.

[0475] The trigger member 33 is configured to: based on two unlocking actions applied to the trigger member 33, control the protrusion 311 of the lock tongue 31 to disengage from the recess 321 of the lock slot, so that the battery pack 2 is unlocked relative to the housing 1. The two unlocking actions include a first unlocking action and a second unlocking action, and both the first unlocking action and the second unlocking action act on the trigger member 33. The first unlocking action is configured to press the trigger member 33 to move it along a first direction until it abuts against the lock tongue linkage 34; the second unlocking action is configured to push the trigger member 33 along a second direction to cause the trigger member 33 to pivot around the first pivot 335, drive the lock tongue linkage 34 to pivot around the first pivot 335 until the protrusion 311 of the lock tongue 31 disengages from the recess 321 of the lock slot, so that the battery pack 2 is unlocked relative to the housing 1. In this embodiment, the first direction is as follows: Fig.18 The direction indicated by the arrow c, the second direction is Fig.19 In the direction indicated by arrow d.

[0476] The housing 1 is provided with a trigger member 33 mounting slot 4, the trigger member 33 is mounted at the trigger member 33 mounting slot 4, a limiting wall 41 is provided at the trigger member 33 mounting slot 4, the trigger member 33 is provided with a stop surface 3313 matched with the limiting wall 41, and the limiting wall 44 is used to stop the stop surface 3313, so that the trigger member 33 can only move along the first direction and cannot move along the second direction before breaking away from the stop of the limiting wall 44. Specifically, the trigger member 33 mounting slot 4 is connected to the inside of the housing 1, that is, connected to the accommodating cavity 102, and the guide wall 44 is formed by the groove wall of the trigger member 33 mounting slot 4, and the guide wall 44 extends roughly along the first direction to guide and limit the trigger member 33. The housing 1 is also provided with a guide wall 44 extending roughly along the second direction, and the guide wall 44 is used to guide the trigger member 33 to move along the second direction. The upper edge of the guide wall 44 is connected to the lower edge of the limiting wall 44.

[0477] Reference Fig.23The trigger member 33 includes a pressing surface 3314 that is substantially perpendicular to the first direction and a pushing surface 3315 that is substantially perpendicular to the second direction. The pushing surface 3315 is provided with an anti-slip pattern 3316. Specifically, a groove is provided on the upper surface of the trigger member 33, the bottom wall of the groove forms the pressing surface 3314, and one side wall of the groove forms the pushing surface 3315. The pressing surface 3314 is substantially perpendicular to the first direction, which is beneficial for the user to apply a force to the trigger member 33 to move it in the first direction, and the pushing surface 3315 is substantially perpendicular to the second direction, which is beneficial for the user to apply a force to the trigger member 33 to move it in the second direction. It is easier for the user to find a force angle that matches the first unlocking action and the second unlocking action, making the unlocking action of the battery pack 2 easier to operate.

[0478] For the specific structure of the locking tongue 31 and the locking groove, as well as the guiding matching structure and the electrical connection structure between the battery pack 2 and the battery pack mounting portion 101 , reference may be made to the aforementioned embodiments and will not be repeated herein.

[0479] In the power tool of this embodiment, when the user installs the battery pack 2, the slide rail 51 is aligned with the slide groove 52, and the battery pack 2 is inserted into the battery pack installation portion 101. When the battery pack 2 is inserted into place, the lock tongue 31 can be engaged with the lock groove on the battery pack 2 under the action of the lock tongue elastic return member 36, that is, the protrusion 311 of the lock tongue 31 extends into the recessed portion 321 of the lock groove, so that the battery pack 2 is locked relative to the housing 1.

[0480] When the user needs to disassemble the battery pack 2, the battery pack 2 must be unlocked first, which specifically includes the following steps:

[0481] Step 2.1, i.e. the first unlocking action, the trigger member 33 is in the initial position without the action of external force, i.e. Fig.17 In the state shown, the user presses the pressing surface 3314 of the trigger member 33 roughly along the first direction, so that the trigger member 33 moves along the first direction until it abuts against the guide boss 3371b of the guide block 3371. At this time, the trigger member 3371 is separated from the stopper of the limiting wall 44 and abuts against the trigger member abutment portion 342 of the lock tongue linkage member 34, that is, Fig.18 The status shown;

[0482] In step 2.2, i.e., the second unlocking action, the user pushes the pushing surface 3315 of the trigger member 33 roughly along the second direction, so that the trigger member 33 pivots around the first pivot 335, driving the lock tongue linkage member 34 to pivot around the first pivot 335, until the protrusion 311 of the lock tongue 31 is disengaged from the concave portion 321 of the lock slot, i.e. Fig.19 In the state shown, the battery pack 2 is unlocked relative to the housing 1, and the battery pack 2 can be separated from the electric tool.

[0483] Step 2.3, after the battery pack 2 is separated from the power tool, the user releases the trigger member 33, such as releasing a finger, and does not apply any force to the trigger member 33. At this time, the lock tongue 31 will be reset under the force of the lock tongue elastic reset member 36, and the trigger member 33 will be reset under the force of the trigger member elastic reset member 334, so that the locking assembly 33 returns to its initial state.

[0484] The user can unlock the battery pack 2 only by applying two unlocking actions, namely pressing and pushing, on the trigger member 33. The battery pack 2 cannot be unlocked by ordinary tree branches, which can effectively reduce the risk of unlocking the battery pack 2 due to accidental touch, avoid harming people or objects around the working environment, and effectively reduce safety hazards.

[0485] Reference Figure 1 and Fig.12 The tree chain saw 100 in the above embodiment includes a body 61, a cutting assembly 62, a top handle 63 (also called a main handle) and the battery pack mounting portion 101. The cutting assembly 62 is arranged at the front side of the body 61, the battery pack mounting portion 101 is arranged at the rear side of the body 61, and the top handle 63 is arranged at the upper side of the body 61 and located in front of the battery pack mounting portion 101. The top handle 63 includes a top handle housing 631, which is a part of the above housing 1, and the locking assembly 33 is at least partially arranged in the top handle housing 631. As an example, a driving motor (not shown) is provided in the body 61, the driving motor is powered by the battery pack 2, and drives the cutting assembly 62 to operate through the transmission assembly 64, the transmission assembly 64 includes a guide plate 641 and a sprocket (not shown), the cutting assembly 62 includes a saw chain 621 wound between the guide plate 641 and the sprocket, the driving motor directly or indirectly drives the sprocket to rotate, and drives the saw chain 621 to reciprocate along the guide plate 641 to achieve the cutting function. The aforementioned housing 1 at least includes a shell of the body 61, a shell of the top handle 63, and a battery pack mounting portion 101. The trigger member 33 of the locking assembly 33 is arranged on the upper side of the top handle shell 631.

[0486] The tree chain saw 100 further includes a trigger 66 for controlling the operation of the drive motor. The trigger 66 is disposed on the upper side or the lower side of the top handle housing 631. The trigger member 33 and the trigger 66 are respectively disposed on the same side or the opposite side of the top handle housing 631, which is convenient for the user to operate.

[0487] The tree chain saw 100 further includes an auxiliary handle 65, one end of the auxiliary handle 65 is connected to the body 61, the other end is connected to the top handle 63, and the auxiliary handle 65 is located beside the body 61. Preferably, the auxiliary handle 65 is located on the left side of the body 61.

[0488] The top handle 63 of the tree chain saw 100 is arranged on the front side of the battery pack 2, so that the chain saw 100 is smaller in size and more compact in structure. When used in conjunction with the auxiliary handle 65 arranged on the side of the body 61, it is convenient for the operator's arm to operate in a small space. It is particularly suitable for use in complex operating environments such as working on trees.

[0489] It is understandable that, in other embodiments, the locking assembly 33 can also be configured as follows: the lock tongue linkage 34 is relatively fixedly connected to the lock tongue 31. As an example, the trigger member 33 is configured not to abut against the lock tongue linkage 34 in the initial state. The first unlocking action is configured to apply a force along the third direction to the trigger member 33, and control the trigger member 33 to move to abut against the lock tongue linkage 34. The second unlocking action is configured to apply a force along the fourth direction to the trigger member 33, so that the trigger member 33 drives the lock tongue linkage 34 to move, and then drives the lock tongue 31 to disengage from the lock tongue receiving portion 32. Among them, the third direction and the fourth direction are different directions. For this embodiment, the specific implementation method of the locking assembly 3 is not repeated here.

[0490] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0491] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0492] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0493] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0494] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0495] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0496] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. An electric tool, comprising: a housing having a battery pack mounting portion, the battery pack mounting portion being detachably connected to a battery pack, the battery pack being configured to provide electrical energy to the power tool; The locking assembly comprises a locking tongue, a locking tongue receiving portion and a triggering member, wherein the triggering member acts on the locking tongue and drives the locking tongue to move; Characterized in that the lock tongue and the trigger member are movably disposed on one of the housing and the battery pack, and the lock tongue receiving portion is disposed on the other of the housing and the battery pack; The lock tongue engages with the lock tongue receiving portion to lock the battery pack relative to the housing; the lock tongue disengages from the lock tongue receiving portion to unlock the battery pack relative to the housing; The electric tool is configured such that when an external force is applied to the trigger member, the trigger member generates at least two different actions to directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion, and the trigger member includes a first trigger member and a second trigger member; The battery pack includes a battery pack housing, the battery pack housing extending in three orthogonal spatial directions (x, y, z) in the directions of a width axis W, a thickness axis T, and a height axis H of the battery pack housing, the battery pack housing including a width extending on the width axis W, a thickness extending on the thickness axis T, and a height extending on the height axis H; The first trigger member and the second trigger member are both located on one side of a plane perpendicular to the thickness axis and passing through the midpoint of the thickness; or The first trigger member and the second trigger member are both located on one side of a plane that is perpendicular to the width axis and passes through a midpoint of the width.

2. An electric tool comprising: The housing is provided with a battery pack mounting portion, wherein the battery pack mounting portion can be inserted and connected to a battery pack, and the battery pack is configured to provide electrical energy to the power tool; A locking assembly, including a lock tongue, a lock tongue receiving portion and a trigger member; Characterized in that the lock tongue and the trigger member are movably disposed on one of the housing and the battery pack, and the lock tongue receiving portion is disposed on the other of the housing and the battery pack; The lock tongue engages with the lock tongue receiving portion to lock the battery pack relative to the housing; the lock tongue disengages from the lock tongue receiving portion to unlock the battery pack relative to the housing; The electric tool is configured such that when an external force is applied to the trigger member, the trigger member generates at least two different actions to directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion, and the trigger member includes a first trigger member and a second trigger member; The battery pack includes a battery pack shell, which includes a first outer contour surface and a second outer contour surface, the first outer contour surface and the second outer contour surface are arranged relative to each other in a direction perpendicular to the insertion direction of the battery pack, at least a portion of the lock tongue or the lock tongue receiving portion is arranged on the first outer contour surface, and the first trigger member and the second trigger member are both located on one side of the second outer contour surface.

3. An electric tool comprising: a housing having a battery pack mounting portion, the battery pack mounting portion being detachably connected to a battery pack, the battery pack being configured to provide electrical energy to the power tool; The locking assembly comprises a locking tongue, a locking tongue receiving portion and a triggering member, wherein the triggering member acts on the locking tongue and drives the locking tongue to move; Characterized in that the lock tongue and the trigger member are movably disposed on one of the housing and the battery pack, and the lock tongue receiving portion is disposed on the other of the housing and the battery pack; The lock tongue engages with the lock tongue receiving portion to lock the battery pack relative to the housing; the lock tongue disengages from the lock tongue receiving portion to unlock the battery pack relative to the housing; The electric tool is configured such that when an external force is applied to the trigger member, the trigger member generates at least two different actions to directly or indirectly drive the lock tongue to move relative to the lock tongue receiving portion, and the trigger member includes a first trigger member and a second trigger member; In a direction perpendicular to the insertion direction, the first trigger member and the second trigger member are both located on one side of the battery pack.

4. The electric tool according to any one of claims 1 to 3, characterized in that: The at least two different actions include an action generated by the first trigger member, which realizes the movement of the first trigger member and the battery pack is not unlocked relative to the casing; and another action generated by the second trigger member, which realizes the movement of the second trigger member and drives the lock tongue to move, so that the battery pack is unlocked relative to the casing.

5. The electric tool according to claim 4, characterized in that: An action generated by the first trigger member enables the first trigger member to move along a first travel trajectory; another action generated by the second trigger member enables the second trigger member to move along a second travel trajectory different from the first travel trajectory; The electric tool is configured to unlock the battery pack relative to the housing based on at least the first travel trajectory and the second travel trajectory.

6. The electric tool according to claim 4, characterized in that: The one action generated by the first trigger member enables the first trigger member to move along a first travel trajectory; the other action generated by the second trigger member enables the first trigger member to move along a second travel trajectory different from the first travel trajectory; The first travel trajectory and the second travel trajectory are not on a straight line, or the first travel trajectory and the second travel trajectory move in different directions.

7. The electric tool according to any one of claims 1 to 3, characterized in that: The lock tongue comprises a first lock tongue and a second lock tongue which move independently of each other. The first trigger member is configured to drive the first lock tongue to move, and the second trigger member is configured to drive the second lock tongue to move.

8. The electric tool according to claim 7, characterized in that: One action generated by the first trigger member is configured as a motion trajectory generated by the first trigger member, so that the first trigger member drives the first lock tongue to disengage from the lock tongue receiving portion, and another action generated by the second trigger member is configured as a motion trajectory generated by the second trigger member, so that the second trigger member drives the second lock tongue to disengage from the lock tongue receiving portion.

9. The electric tool according to any one of claims 1 to 3, characterized in that: The trigger member includes a first trigger member and a second trigger member, the lock tongue is only provided with one, the locking assembly also includes a first movable member and a second movable member that move independently, the first movable member and the second movable member respectively include a locking position and an unlocking position, the first trigger member is configured to drive the first movable member to move between the locking position and the unlocking position, the second trigger member is configured to drive the second movable member to move between the locking position and the unlocking position, and when at least one of the first movable member and the second movable member is in the locking position, the lock tongue is engaged with the lock tongue receiving portion; When the first movable member and the second movable member are both in the unlocking position, the locking tongue is disengaged from the locking tongue receiving portion.

10. The electric tool according to claim 9, characterized in that: One action generated by the trigger member is configured as the movement of the first trigger member, so as to drive the first movable member to move to the unlocked position; another action generated by the trigger member is configured as the movement of the second trigger member, so as to drive the second movable member to move to the unlocked position.

11. The electric tool according to any one of claims 1 to 3, characterized in that: The trigger member further comprises a first trigger member, and a second trigger member for locking the first trigger member, wherein the second trigger member comprises a first position and a second position for moving relative to the housing; In the first position, the second trigger member does not allow the first trigger member to drive the lock tongue to move; In the second position, the first trigger member can drive the locking tongue to move.

12. The electric tool according to claim 11, characterized in that: One action generated by the trigger is configured as a motion track generated by the second trigger, and another action generated by the trigger is configured as a motion track generated by the first trigger; The motion trajectory generated by the second trigger member enables the second trigger member to move from the first position to the second position, so as to allow the first trigger member to drive the lock tongue to move; the motion trajectory generated by the first trigger member enables the first trigger member to drive the lock tongue to disengage from the lock tongue receiving portion.

13. The electric tool according to any one of claims 1 to 3, characterized in that: The electric tool is a chain saw, and the chain saw includes a cutting assembly mounted on the housing, and the cutting assembly includes a guide plate and a saw chain arranged around the guide plate, and the guide plate provides support and guidance for the saw chain; The battery pack is inserted and installed into the battery pack installation portion in a manner that the first outer contour surface and the second outer contour surface of the battery pack are spaced and arranged opposite to each other along a first direction perpendicular to the plane where the guide plate is located, at least a portion of the lock tongue or the lock tongue receiving portion is arranged on the first outer contour surface, and one or more of the trigger members are located on one side of the second outer contour surface, or The battery pack is inserted and installed into the battery pack mounting portion in a manner that the first outer contour surface and the second outer contour surface of the battery pack are spaced apart and arranged relative to each other along a second direction parallel to the plane where the guide plate is located, at least a portion of the lock tongue or the lock tongue receiving portion is arranged on the first outer contour surface, and one or more of the trigger members are located on one side of the second outer contour surface.

14. The electric tool according to claim 13, characterized in that: The chainsaw also includes a top handle for a user to hold; the cutting assembly is arranged on the front side of the casing in the length extension direction of the chainsaw; the battery pack mounting portion is arranged on the rear side of the casing in the length extension direction of the chainsaw; and the top handle is arranged above the casing in the height extension direction of the chainsaw.

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