Electric tool

Abstract

The utility model relates to the technical field of tool equipment, and particularly discloses an electric tool which is characterized in that a motor is at least partially arranged in a shell, and the motor comprises a rotating shaft capable of rotating around the axis of the motor; the switch assembly is used for being operated by a user to be switched between a starting position and a stopping position; the fixing assembly comprises a button and a first fixing piece, and the button is connected with the first fixing piece; the button is arranged on the outer side of the shell, and the first fixing piece is arranged on the inner side of the shell; the inner side of the shell comprises a first retainer which is matched with the first fixing piece; when the switch assembly is located at the starting position and the switch assembly is matched with the fixing assembly, the button is rotated to enable the first fixing piece to be matched with the first retainer, so that the switch assembly is locked at the starting position. The trigger locking reliability is improved through the arrangement.

Description

Technical Field

[0001] The present application relates to the technical field of tool equipment, and in particular to an electric tool. Background Art

[0002] When the trigger of the drywall screwdriver moves to the starting position, it can trigger the motor to rotate. In order to lock the trigger in the starting position, a locking structure is provided on the drywall screwdriver, wherein the locking structure includes a circular structure provided on the trigger and a matching component provided on the housing, and the trigger is locked by matching the matching component with the circular structure.

[0003] However, the existing locking structure is easy to unlock. For example, after the switch trigger is accidentally touched, the matching component is easy to disengage from the circular structure, so that the trigger is unlocked and moved to the parking position, affecting work efficiency and quality.

[0004] For this reason, it is urgent to study a kind of electric tool to solve the above problems. Utility Model Content

[0005] The purpose of the present application is to provide an electric tool to solve the problem in the prior art that the switch trigger is accidentally touched, causing the mating component to separate from the trigger, thereby causing the trigger to move to a stop position, affecting work efficiency and quality.

[0006] To achieve the above objectives, this application adopts the following technical solutions:

[0007] An electric tool, comprising:

[0008] case;

[0009] A motor, at least partially disposed in the housing, the motor comprising a rotating shaft rotatable about a motor axis;

[0010] A switch assembly, for being operated by a user to switch between a start position and a stop position;

[0011] The fixing assembly includes a button and a first fixing member, wherein the button is connected to the first fixing member; the button is arranged on the outside of the housing, and the first fixing member is arranged on the inside of the housing;

[0012] The inner side of the housing includes a first stopper matched with the first fixing member;

[0013] When the switch assembly is in the start position and the switch assembly cooperates with the fixing assembly, the button is rotated so that the first fixing member cooperates with the first stop member, so that the switch assembly is locked in the start position.

[0014] In some optional technical solutions of the electric tool, the first stopper is provided with a recessed portion and the first fixing member is provided with a protruding portion, or the first stopper is provided with a protruding portion and the first fixing member is provided with a recessed portion, and the protruding portion is inserted into the recessed portion to prevent the button from being rotated.

[0015] In some optional technical solutions of electric tools, the first fixing member includes a rod-shaped portion and a crimping portion connected to each other, and the rod-shaped portion is connected to the button; when the first fixing member cooperates with the first stop member, the crimping portion is crimped to the first stop member, and the length of the rod-shaped portion is the same as the length of the first stop member.

[0016] In some optional technical solutions of electric tools, the fixing assembly also includes a second fixing member, which is connected to the button, and the switch assembly includes a stop member. When the switch assembly is in the starting position, the button is pressed to make the second fixing member cooperate with the stop member and prevent the switch assembly from moving to the stop position.

[0017] In some optional technical solutions of electric tools, a clamping portion extends radially from one end of the second fixing member away from the button, the second fixing member cooperates with the stop member, and when the switch assembly loses external force, the clamping portion clamps to the side of the stop member away from the button.

[0018] In some optional technical solutions of the electric tool, the inner side of the shell includes a second stopper that matches the first fixing member; and before the button is rotated, the second stopper cooperates with the first fixing member.

[0019] In some optional technical solutions of electric tools, the first fixing member includes a rod-shaped portion and a crimping portion connected to each other, and the rod-shaped portion is connected to the button; when the first fixing member cooperates with the second stop member, the crimping portion is crimped to the second stop member, and the length of the rod-shaped portion is greater than the length of the second stop member.

[0020] In some optional technical solutions of the electric tool, the fixing assembly includes an elastic member, which is arranged between the housing and the button and is used to apply elastic force to the button to keep the button away from the housing.

[0021] In some optional technical solutions of electric tools, when the switch assembly is in the starting position and the switch assembly is matched with the fixing assembly, the button is rotated to disengage the first fixing member from the first stop member, so that the fixing assembly is reset to the initial position and unlocked from the switch assembly.

[0022] An electric tool, comprising:

[0023] case;

[0024] A motor, at least partially disposed in the housing, the motor comprising a rotating shaft rotatable about a motor axis;

[0025] A switch assembly, for being operated by a user to switch between a start position and a stop position;

[0026] The power tool also includes a fixing assembly;

[0027] When the switch assembly is in the activated position and the switch assembly cooperates with the fixing assembly, the fixing assembly is rotated to lock the switch assembly in the activated position.

[0028] The beneficial effects of this application are:

[0029] The present application provides an electric tool, which, by means of the setting of a fixed component, ensures that when the motor of the electric tool rotates, even if the trigger is accidentally touched, the fixed component will not be triggered to rotate, so that the position of the fixed component will not change, and the trigger will not be unlocked, thereby improving the reliability of the trigger locking, making the reliability of the motor rotation process better, and improving work efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the electric tool in the embodiment of the present application;

[0031] Figure 2 This is a schematic diagram of the internal structure of the electric tool in the embodiment of the present application;

[0032] Figure 3 is a schematic cross-sectional structure diagram of an electric tool in an embodiment of the present application;

[0033] Figure 4 This is a schematic diagram of the structure of the switch assembly and the direction assembly in the embodiment of the present application, and the switch assembly is located in the stop position;

[0034] Figure 5 This is a schematic diagram of the structure of the switch assembly and the direction assembly in the embodiment of the present application, and the switch assembly is in the start position;

[0035] Figure 6 It is a schematic diagram of the top view of the switch assembly and the direction assembly in the embodiment of the present application;

[0036] Figure 7 This is a schematic diagram of the structure of the linkage switch in the embodiment of the present application;

[0037] Figure 8 It is a schematic diagram of the structure of the fixing assembly and the trigger in the electric tool in the embodiment of the present application;

[0038] Fig. 9 This is a schematic diagram of the structure of a button in an electric tool according to an embodiment of the present application;

[0039] Fig.10 It is a schematic diagram of the structure of the electric tool in the embodiment of the present application, the trigger is in the start position and the button is not pressed;

[0040] Fig.11 It is a schematic diagram of the structure of the electric tool in the embodiment of the present application, the trigger is in the start position, and the button is pressed;

[0041] Fig.12 for Fig.11 The enlarged view of point A in the middle;

[0042] Fig.13 This is a schematic diagram of the structure of the electric tool in the embodiment of the present application, the trigger is in the start position, and the button is pressed and turned;

[0043] Fig.14 This is a schematic diagram of the structure of the electric tool in the embodiment of the present application, the trigger is in the start position, and the first fixing member and the first stopping member cooperate;

[0044] Fig.15 for Fig.14 Enlarged view of point B in the middle.

[0045] In the figure:

[0046] 100, housing; 110, housing body; 120, gripping portion; 121, first stopper; 1211, recessed portion; 122, second stopper; 123, limiting member;

[0047] 200, motor; 210, rotating shaft; 211, first axis; 220, output shaft; 221, second axis; 222, input end; 223, output end; 224, driving member;

[0048] 300, switch assembly; 310, trigger; 311, second stopper; 3111, arc surface; 312, slide groove; 320, first elastic member; 330, switch element; 340, detection element; 341, rotating member; 3411, connecting portion; 3412, mounting portion; 342, biasing member; 343, connecting member; 350, activation element; 360, stopper;

[0049] 400, direction assembly; 410, direction member; 411, first stopper; 420, fixing screw;

[0050] 500, battery;

[0051] 600, fixing assembly; 610, button; 620, first fixing member; 621, protruding portion; 622, rod-shaped portion; 623, crimping portion; 630, second fixing member; 631, snap-fit ​​portion; 632, snap-fit ​​groove; 640, second elastic member. DETAILED DESCRIPTION

[0052] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0053] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0054] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0055] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0056] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0057] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0058] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0059] like Figures 1 to 7 As shown, this embodiment provides an electric tool. In this embodiment, the electric tool can be an electric screwdriver. In other embodiments, it can be other tools with forward and reverse rotation. The electric tool includes a housing 100, a motor 200 and a switch assembly 300, wherein the motor 200 is at least partially arranged in the housing 100, and the motor 200 includes a rotating shaft 210 that can rotate around a first axis 211; the switch assembly 300 is used for the user to operate to switch between a start position and a stop position, when the switch assembly 300 is in the start position, a start signal is sent to the motor 200, and when the switch assembly 300 is in the stop position, a stop signal is sent to the motor 200; the electric tool also includes a direction assembly 400, which is used for the user to operate to control the rotation direction of the motor 200; the direction assembly 400 is also configured to cooperate with the switch assembly 300 to lock the switch assembly 300 in the start position; when the direction assembly 400 is operated to disengage from the cooperation with the switch assembly 300 to release the lock of the switch assembly 300, the switch assembly 300 switches to the stop position.

[0060] The above arrangement ensures that even if the switch assembly 300 is accidentally touched during the working process, the position of the switch assembly 300 will not be changed because the switch assembly 300 is locked by the direction assembly 400, and thus the working state of the power tool will not change, thereby improving the reliability of the locking of the switch assembly 300, making the reliability of the rotation process of the motor 200 better, and improving work efficiency and quality.

[0061] In some embodiments, the direction assembly 400 includes a direction member 410 and a first stopper 411 disposed on the direction member 410, and the switch assembly 300 includes a trigger 310 and a second stopper 311 disposed on the trigger 310, and the first stopper 411 and the second stopper 311 cooperate to allow the direction member 410 to lock the trigger 310 at the start position. With the arrangement of the above structure, the trigger 310 at the start position is locked, and the trigger 310 is prevented from moving from the start position to the stop position, so that the electric tool can be kept in a rotating state.

[0062] Combination Figures 4 to 6 As shown, regarding the specific matching structure of the first stopper 411 and the second stopper 311, in some embodiments, the first stopper 411 includes a protrusion provided on the direction member 410 and extending in the direction of the trigger 310, and the second stopper 311 includes a groove provided on the trigger 310 and opening toward the direction member 410. When the trigger 310 is at the start position and the protrusion is inserted into the groove, the direction member 410 locks the trigger 310 at the start position. The position locking of the trigger 310 at the start position is achieved by setting the protrusion and the groove, and the structure of the protrusion and the groove is simple, easy to produce and convenient to operate.

[0063] Regarding the relative position relationship between the direction member 410 and the trigger 310, in some embodiments, the direction member 410 is located above the trigger 310, and the direction member 410 can switch between the forward position, the reverse position and the locked position. When the direction member 410 is in the locked position, the protrusion is inserted into the groove, and when the direction member 410 is in the forward position and the reverse position, the protrusion is removed from the groove. Specifically, the protrusion extends downward, the opening of the groove faces upward, and the movement direction of the trigger 310 is the front-to-back direction. The above arrangement enables the trigger 310 to be limited to the start position by the mutual contact between the side wall of the groove and the side wall of the protrusion after the protrusion is inserted into the groove, so as to prevent the trigger 310 from moving to the stop position, so that in the normal working process, even if the trigger 310 is accidentally touched, it will not affect the change of the position of the trigger 310, thereby improving the reliability of the trigger 310 locking, making the reliability of the rotation process of the motor 200 better, and improving the work efficiency and quality.

[0064] The direction member 410 is rotatably arranged on the housing 100. The direction member 410 includes a rotating end and an operating end. The rotating end is provided with a rotating hole, and the fixing screw 420 passes through the rotating hole and is screwed to the housing 100. The operating end is operated by a user to toggle the direction member 410 between a forward position, a reverse position and a locked position. In order to ensure the stability of the direction member 410 at a certain position, the direction member 410 has damping during the rotation process.

[0065] When the direction member 410 is located at the forward position and the reverse position, the direction member 410 releases the lock on the trigger 310. In this state, the trigger 310 can return to the stop position under the action of the elastic force, or can be manually operated to the stop position by the user. In this embodiment, a first elastic member 320 is arranged between the trigger 310 and the housing 100. When the trigger 310 is moved to the start position by an external force, the first elastic member 320 is compressed and stored. When the external force disappears, the first elastic member 320 can apply an elastic force to the trigger 310 so that the trigger 310 moves to the stop position. Among them, the first elastic member 320 can be a spring. A dust cover is provided on the outer periphery of the spring to prevent impurities from falling into the gap of the spring and affecting the normal compression of the spring, thereby facilitating the smooth switching of the trigger 310 between the start position and the stop position.

[0066] In some embodiments, the forward rotation position and the reverse rotation position are located on the left and right sides of the locking position, and the trigger 310 is provided with a slide groove 312 on the left and right sides of the groove, respectively, and the left and right sides of the groove are connected to the corresponding slide groove 312, and when the direction member 410 is located at the forward rotation position and the reverse rotation position, the protrusion can slide in the corresponding slide groove 312. Exemplarily, when the direction member 410 is located at the forward rotation position, the protrusion is in the slide groove 312 on the left side of the groove, and in this state, the trigger 310 can move between the start position and the stop position, and during the movement of the trigger 310 between the start position and the stop position, the protrusion plays a certain guiding role on the slide groove 312. Regarding the connection between the groove and the slide grooves 312 on both sides, that is, the left and right sides of the groove are provided with a left channel and a right channel respectively, and the groove is connected to one slide groove 312 through the left channel, and is connected to another slide groove 312 through the right channel. Specifically, the forward rotation position is located on the left side of the locking position, and the reverse rotation position is located on the right side of the locking position. The above arrangement enables the direction member 410 to be moved to the forward position by toggling the direction member 410 in the locked position to the left, and toggling the direction member 410 in the locked position to the right to move the direction member 410 to the reverse position. In specific use, if the trigger 310 needs to be moved to the stop position, and the motor 200 needs to rotate forward the next time it works, the direction member 410 is toggled to the left to the forward position. If the trigger 310 needs to be moved to the stop position, and the motor 200 needs to rotate reversely the next time it works, the direction member 410 is toggled to the right to the reverse position.

[0067] In addition, the arrangement of the above-mentioned slide groove 312 also makes it possible for the side wall of the slide groove 312 to stop the protrusion when the trigger 310 is in the parking position, that is, the direction member 410 cannot move from the forward position to the locked position, nor can it move from the reverse position to the locked position.

[0068] Of course, in other embodiments, the specific settings of the forward position and the reverse position may be opposite to the above situation, that is, the forward position may be located on the right side of the locking position, and the reverse position may be located on the left side of the locking position. Specifically, reasonable settings may be made according to the user's habits.

[0069] When the direction member 410 locks the trigger 310 in the starting position, the surface where the groove and the protrusion abut is the arc surface 3111, and the protrusion is in contact with the bottom of the arc surface 3111. When the protrusion is located in the groove, that is, when the direction member 410 is in the locked position, if it is necessary to move the direction member 410 to the forward position or the reverse position, there is a certain resistance under the blocking effect of the side wall of the arc surface 3111. In the process of forcibly pushing the direction member 410, the trigger 310 first moves toward the direction close to the shell 100 and compresses the first elastic member 320, so that the protrusion passes over the side wall of the arc surface 3111. The above arrangement improves the stability of the direction member 410 in the locked position.

[0070] In some embodiments, when the direction member 410 moves to the forward position, the forward circuit of the power tool is connected to keep the motor 200 in forward rotation when the trigger 310 is in the start position. The above setting limits the connection mode of the forward circuit, is simple to operate, and is conducive to improving work efficiency.

[0071] Specifically, the electric tool includes a forward trigger, and the forward trigger is triggered when the direction member 410 moves to the forward position. After the forward trigger is triggered, a forward signal is sent to the controller of the electric tool, and the controller controls and keeps the forward circuit connected. The above setting makes it possible to start the motor 200 and make the motor 200 rotate forward when the trigger 310 is moved to the start position on the basis of the forward circuit being connected. The forward trigger can be a photoelectric sensor or a micro switch. Of course, in its embodiment, it can also be other structures that can trigger signals in the prior art. The above structure is set so that after the forward trigger is triggered, the forward circuit remains connected. In this state, even if the direction member 410 moves to the locking position during the subsequent operation, the forward circuit can be connected, so that the motor 200 maintains the forward working state. The above setting makes it unnecessary for the direction member 410 to remain in the forward position during the forward rotation of the motor 200. It should be noted that the way and specific working principle of the controller controlling and keeping the forward circuit connected are well known to those skilled in the art, so they are not described in detail here.

[0072] In some embodiments, when the direction member 410 moves to the reverse position, the reverse circuit of the power tool is connected to keep the motor 200 in reverse when the trigger 310 is in the start position. The above setting limits the connection mode of the reverse circuit, is simple to operate, and is conducive to improving work efficiency.

[0073] Specifically, the electric tool includes a reversing trigger, and the reversing trigger is triggered when the direction member 410 moves to the reversing position. After the reversing trigger is triggered, a reversing signal is sent to the controller of the electric tool, and the controller controls and keeps the reversing circuit connected. The above setting makes the reversing circuit connected. When the trigger 310 is moved to the starting position, the motor 200 can be started and the motor 200 can be reversed. The reversing trigger can be a photoelectric sensor or a micro switch. Of course, in its embodiment, it can also be other structures that can trigger signals in the prior art. The above structure is set so that after the reversing trigger is triggered, the reversing circuit remains connected. In this state, even if the direction member 410 moves to the locking position during the subsequent operation, the reversing circuit can be connected, so that the motor 200 maintains the reverse working state. The above setting makes it unnecessary for the direction member 410 to remain in the reversing position during the reversal of the motor 200. It should be noted that the way and specific working principle of the controller controlling and keeping the reversing circuit connected are well known to those skilled in the art, so they are not described in detail here.

[0074] The present embodiment also provides an operating method of an electric tool, wherein the electric tool includes a motor 200, a switch assembly 300 for a user to operate to switch between a start position and a stop position, and a direction assembly 400 for a user to operate to control the rotation direction of the motor 200. When the switch assembly 300 is in the start position, a start signal is sent to the motor 200, and when the switch assembly 300 is in the stop position, a stop signal is sent to the motor 200. The operating method includes: when the switch assembly 300 is in the start position and the direction assembly 400 cooperates with the switch assembly 300 to lock the switch assembly 300 in the start position, operating the direction assembly 400 to unlock the switch assembly 300; wherein, when the direction assembly 400 unlocks the switch assembly 300, the switch assembly 300 switches to the stop position.

[0075] The limitation of the above method ensures that during the normal operation of the power tool, even if the switch assembly 300 is accidentally touched, the switch assembly 300 will not move to the stop position due to the locking of the direction assembly 400, thereby keeping the motor 200 in a normal working state, which is beneficial to improving work efficiency and quality.

[0076] Regarding the structure of the power tool, specifically, the housing 100 of the power tool includes a housing body 110 and a grip portion 120 disposed on one side of the housing body 110. An output shaft 220 that rotates around a second axis 221 is disposed in the housing body 110. The output shaft 220 and the rotating shaft 210 are connected by a transmission member. A battery 500 is disposed at the bottom of the grip portion 120. The battery 500 is electrically connected to the motor 200 to provide electrical energy for the rotation of the motor 200.

[0077] Combination Figure 7As shown, the electric tool further includes a linkage switch, wherein the switch assembly 300 is disposed near the grip 120 and is used to send start and stop signals to the motor when manually operated by the user. The linkage switch is disposed in the housing 100, and the signal of the linkage switch responds to the motion state of the output shaft 220. In this embodiment, the switch assembly 300 is disposed in series with the signal of the linkage switch.

[0078] The switch assembly 300 includes a trigger 310 and a switch element 330 connected to the trigger 310. The trigger 310 is used to receive an operation instruction from a user. Generally speaking, when the trigger 310 is activated, the switch element 330 is turned on, and when the trigger 310 is not activated, the switch element 330 is turned off. In this embodiment, the user inputs an operation instruction by pressing and releasing the trigger 310. In some alternative embodiments, the user inputs an operation instruction to the trigger 310 by operating actions such as rotating, toggling, or touching. In this embodiment, the trigger 310 is activated when it moves to the start position, and is not activated when the trigger 310 moves to the stop position.

[0079] The linkage switch includes a detection element 340 and an activation element 350. The detection element 340 is coupled to the motor 200, and the activation element 350 is used to activate the detection element 340. In this embodiment, the activation element 350 activates the detection element 340 in response to the movement of the output shaft 220. The process of the movement of the detection element 340 includes an activation state in which the activation element 350 is activated and generates an activation signal and a sleep state in which the activation element 350 is not activated. In this embodiment, when the detection element 340 is in an activated state and the switch assembly 300 is in a conducting state, the motor 200 is started. That is, when the detection element 340 is in a sleep state or the switch assembly 300 is in a closed state, the motor 200 cannot be started. It should be noted that the output shaft 220 drives the detection element 340 to move, which can be understood as the output shaft 220 directly drives the detection element 340 to translate, rotate, slide, etc., or the output shaft 220 indirectly drives the detection element 340 to translate, rotate, slide, etc. In this embodiment, the output shaft 220 drives the detection element 340 to rotate around the detection axis. The detection element 340 can be activated by the activation element 350 during the rotation process, and thus is in an activated state.

[0080] In this embodiment, the output shaft 220 drives the detection element 340 to rotate. For example, when the input end 222 of the output shaft 220 is forced to move along the second axis 221, so that the output end 223 of the output shaft 220 moves backward along the second axis 221, the output end 223 can drive the detection element 340 to rotate around the detection axis.

[0081] In this embodiment, the linkage switch further includes a rotating member 341, a biasing member 342 and a connecting member 343, wherein the rotating member 341 is rotatably connected to the housing 100 through the connecting member 343, and the rotating member 341 is used to install the detection element 340, which can also be understood as the output shaft 220 drives the rotating member 341 to rotate around the detection axis, thereby driving the detection element 340 to rotate. The connecting member 343 is a rod-shaped member, and the detection axis is the axis of the connecting member 343. The biasing member 342 is installed on the rotating member 341. For example, when installed, the biasing member 342 has a biasing force, which can keep the rotating member 341 in the initial position when there is no external force. In this embodiment, the rotating member 341 includes a connecting portion 3411 and a mounting portion 3412, wherein the mounting portion 3412 is formed with a receiving groove, and the detection element 340 is installed in the receiving groove and rotates synchronously with the rotating member 341. The connecting portion 3411 is fixedly connected or integrally formed with the mounting portion 3412, for example, the connecting portion 3411 is integrally formed with the mounting portion 3412. The biasing member 342 can provide a biasing force that keeps the detection element 340 in the initial position without external force driving, that is, when the output shaft 220 is not driven by external force, the biasing member 342 keeps the detection element 340 in the initial position. Under the premise that the switch assembly 300 is in a constant on state, when the input end 222 is forced to move along the first axis 211 toward the direction close to the rotating shaft 210, the output end 223 can drive the detection element 340 to switch from the sleep state to the active state, wherein when the detection element 340 is in the sleep state, the output end 223 is at least partially in contact with the connecting portion 3411. That is to say, when the detection element 340 is in the active state, the detection element 340 is at least partially in contact with the activation element 350. The output shaft 220 has a driving member 224. The driving member 224 can drive the connecting portion 3411 to rotate the detecting element 340. The driving member 224 can be a rolling ball. The above arrangement can avoid damage to the connecting portion 3411 when the motor 200 drives the output shaft 220 to run at a high speed, thereby extending the service life. In this embodiment, the detecting element 340 adopts a Hall sensor, and the activating element 350 adopts a permanent magnet. It should be noted that the above-mentioned output end 223 can also be formed by the driving member 224.

[0082] like Figures 8 to 15 As shown, this embodiment provides an electric tool. In this embodiment, the electric tool includes a housing 100, a motor 200, a switch assembly 300 and a fixing assembly 600. The motor 200 is at least partially disposed in the housing 100. The motor 200 includes a rotating shaft 210 that can rotate around a first axis 211. The structure and position relationship of the motor 200, the first axis 211 and the rotating shaft 210 are similar to Figure 2 and Figure 3The structures shown are the same, the switch assembly 300 is used for the user to operate to switch between the start position and the stop position; the fixing assembly 600 includes a button 610 and a first fixing member 620, and the button 610 is connected to the first fixing member 620; the button 610 is arranged on the outside of the shell 100, and the first fixing member 620 is arranged on the inside of the shell 100; the inside of the shell 100 includes a first stopper 121, which matches the first fixing member 620; when the switch assembly 300 is in the start position and the switch assembly 300 cooperates with the fixing assembly 600, the button 610 is rotated so that the first fixing member 620 cooperates with the first stopper 121, so that the switch assembly 300 is locked in the start position.

[0083] In this embodiment, with the aid of the setting of the above-mentioned fixing component 600, when the motor 200 of the electric tool rotates, even if the trigger 310 is accidentally touched, the fixing component 600 will not be triggered to rotate, so that the position of the fixing component 600 will not change, and the trigger 310 will not be unlocked, thereby improving the reliability of the locking of the trigger 310, and making the reliability of the rotation process of the motor 200 better, thereby improving work efficiency and quality.

[0084] When the electric tool is in normal use, the motor 200 is in a rotating state. During this process, when there is a slight disturbance or under the action of vibration, the first stopper 121 and the first fixing member 620 may rotate relative to each other, so that the first stopper 121 and the first fixing member 620 are released from the matching, and the switch assembly 300 is restored to the stop position. To solve the above problem, in some embodiments, the first stopper 121 is provided with a recessed portion 1211 and the first fixing member 620 is provided with a protruding portion 621, or the first stopper 121 is provided with a protruding portion 621 and the first fixing member 620 is provided with a recessed portion 1211, and the protruding portion 621 is inserted into the recessed portion 1211 to prevent the button 610 from being rotated. With the aid of the above-mentioned structural setting, when the first stop member 121 and the first fixing member 620 cooperate, the protrusion 621 is inserted into the recessed portion 1211, so that under the action of slight disturbance or vibration, the first stop member 121 and the first fixing member 620 cannot rotate relative to each other, so that the first stop member 121 and the first fixing member 620 remain in a matched state, thereby ensuring that the switch assembly 300 is locked in the starting position.

[0085] Among them, regarding the specific structure of the protrusion 621, in some embodiments, the structure of the protrusion 621 is a hemispherical structure, and protrudes outward from the first fixing member 620, and the shape of the recessed portion 1211 is adapted to the protrusion 621. When the user screws the button 610, the protrusion 621 can be screwed out of the recessed portion 1211, and the button 610 can be continued to be screwed, which can drive the first fixing member 620 and the first stop member 121 to rotate relative to each other, thereby releasing the first fixing member 620 and the first stop member 121, and allowing the switch assembly 300 to move to the stop position.

[0086] Further, the first fixing member 620 includes a rod-shaped portion 622 and a crimping portion 623 connected to each other, and the rod-shaped portion 622 is connected to the button 610; when the first fixing member 620 cooperates with the first stopper 121, the crimping portion 623 is crimped to the first stopper 121, and the button 610 is a columnar member. In the axial direction of the button 610, that is, in the left-right direction, the length of the rod-shaped portion 622 is the same as the length of the first stopper 121. When the first stopper 121 cooperates with the first fixing member 620, the first stopper 121 limits the first fixing member 620 from moving toward the button 610. With the above arrangement, when the first fixing member 620 cooperates with the first stopper 121, the first fixing member 620 cannot change its position under the limiting action of the first stopper 121, and the fixing assembly 600 maintains a locked state for the switch assembly 300.

[0087] The crimping portion 623 is located at one end of the rod-shaped portion 622 and extends perpendicularly to the axial direction of the rod-shaped portion 622 .

[0088] Specifically, the first stopper 121 is integrally formed with the housing 100, is disposed around the axis of the button 610, and extends along the axis of the button 610. In other words, the first stopper 121 extends in the left-right direction.

[0089] Regarding the way in which the fixing component 600 limits the switch component 300, in this embodiment, the fixing component 600 also includes a second fixing member 630, and the second fixing member 630 is connected to the button 610. The switch component 300 includes a stop member 360. When the switch component 300 is in the starting position, the button 610 is pressed to allow the second fixing member 630 to cooperate with the stop member 360 and prevent the switch component 300 from moving to the stop position.

[0090] In order to prevent the second fixing member 630 from being separated from the switch assembly 300 when the switch assembly 300 is locked, thereby releasing the lock of the switch assembly 300, in this embodiment, a clamping portion 631 extends radially from one end of the second fixing member 630 away from the button 610, and the second fixing member 630 cooperates with the stopper 360, and when the switch assembly 300 loses external force, the clamping portion 631 is clamped to the side of the stopper 360 away from the button 610. With the above arrangement, the clamping portion 631 can be mutually clamped with the clamping switch assembly 300, so that the button 610 can be moved away from the switch assembly 300 and the second fixing member 630 can be separated from the switch assembly 300 only after the button 610 is rotated to drive the second fixing member 630 to rotate.

[0091] Specifically, the stopper 360 includes a circular ring, and the second fixing member 630 is a columnar member. When the switch assembly 300 is located at the start position, the button 610 is pressed to make the second fixing member 630 match and be inserted into the circular ring.

[0092] The circular ring is provided on the trigger 310. The circular ring has a passage, which cooperates with the second fixing member 630 and penetrates in the left-right direction, and in the up-down direction, the length of the passage is greater than the diameter of the second fixing member 630. The above arrangement enables the clamping portion 631 to move from the rear side of the axis of the second fixing member 630 to the upper side or the lower side of the axis of the second fixing member 630 after being screwed, so that the circular ring cannot be clamped. In this state, the second fixing member 630 can be pulled out of the circular ring. Regarding the formation of the clamping portion 631, in some embodiments, the second fixing member 630 is provided with a clamping groove 632, and the portion between the upper side wall of the clamping groove 632 and the top of the second fixing member 630 forms the clamping portion 631. Specifically, turning the button 610 clockwise drives the locking portion 631 to move from the rear side of the axis of the second fixing member 630 to the upper side of the axis of the second fixing member 630, thereby releasing the locking relationship with the circular ring. In this state, the second fixing member 630 can move to the left and be pulled out of the circular ring.

[0093] The button 610 moves between the initial position and the locked position, wherein the second stopper 122 and the first fixing member 620 cooperate to define the initial position of the fixing assembly 600. The first stopper 121 and the first fixing member 620 cooperate to define the locked position of the fixing assembly 600. The inner side of the housing 100 includes the second stopper 122, which matches the first fixing member 620; and before the button 610 is rotated, the second stopper 122 matches the first fixing member 620. The above arrangement allows the initial position of the button 610 to be specifically defined, thereby facilitating the user to control the specific position of the button 610. In addition, the above arrangement can prevent the fixing assembly 600 from being separated from the housing 100.

[0094] In order to extract the second fixing member 630 from the ring, in some embodiments, the first fixing member 620 includes a rod-shaped portion 622 and a crimping portion 623 connected to each other, and the rod-shaped portion 622 is connected to the button 610. When the first fixing member 620 is matched with the second stopper 122, the crimping portion 623 is crimped to the second stopper 122, and in the left-right direction, the length of the rod-shaped portion 622 is greater than the length of the second stopper 122. When the second stopper 122 is matched with the first fixing member 620, the switch assembly 300 can be switched between the stop position and the start position. The above arrangement enables that when the first fixing member 620 is separated from the first stopper 121 by rotation, the clamping portion 631 on the second fixing member 630 rotates from the rear side of the axis of the second fixing member 630 to the upper side or lower side of the axis of the second fixing member 630, so that the second fixing member 630 can be pulled out of the ring during the process of the button 610 being away from the housing 100, and the first fixing member 620 and the second stopper 122 are in abutment with each other. The second stopper 122 is also provided with a recessed portion 1211.

[0095] Specifically, the second stopper 122 is integrally formed with the housing 100, and the second stopper 122 is arranged on the peripheral side of the axis of the button 610, and extends along the axis direction of the button 610. The second stopper 122 and the first stopper 121 are arranged at intervals around the axis of the button 610. The button 610 and the second fixing member 630 are coaxial. Among them, a limiting member 123 is also provided inside the housing 100, and the limiting member 123 is located on one side of the button 610, and is located on the side of the second stopper 122 away from the first stopper 121. The limiting member 123, the second stopper 122 and the first stopper 121 form a limiting groove, wherein the top of the second stopper 122 forms the groove bottom of the limiting groove, and the crimping portion 623 located at the initial position is located in the limiting groove and abuts against the groove bottom of the limiting groove.

[0096] In this embodiment, the crimping portion 623 protrudes from the rod-shaped portion 622 in a direction in which the rod-shaped portion 622 is away from the second fixing member 630 .

[0097] When the first fixing member 620 is released from the first stop member 121, in order to ensure that the button 610 can automatically return to its initial position and improve the resetting efficiency of the button 610, in some embodiments, the fixing assembly 600 includes a second elastic member 640, and the second elastic member 640 is arranged between the shell 100 and the button 610, and is used to apply elastic force to the button 610 to keep the button 610 away from the shell 100.

[0098] The second elastic member 640 is a spring, which is sleeved on the second fixing member 630 , with one end of the spring abutting against the button 610 and the other end abutting against the housing 100 , so that the button 610 is away from the housing 100 .

[0099] When the switch assembly 300 is in the start position and the switch assembly 300 is matched with the fixing assembly 600, the button 610 is rotated to release the first fixing member 620 from the first stopper 121, so that the fixing assembly 600 is reset to the initial position and is unlocked from the switch assembly 300. The above arrangement defines the relative position relationship and the release mode of the first fixing member 620 and the first stopper 121, and the release mode of the first fixing member 620 and the first stopper 121 is achieved by screwing, which is simple to operate and convenient for improving user experience.

[0100] The present embodiment also provides an electric tool, which includes a housing 100, a motor 200 and a switch assembly 300. The motor 200 is at least partially disposed in the housing 100, and the motor 200 includes a rotating shaft 210 that can rotate around a first axis 211. The switch assembly 300 is used for a user to operate to switch between a start position and a stop position. The electric tool also includes a fixing assembly 600. When the switch assembly 300 is in the start position and the switch assembly 300 cooperates with the fixing assembly 600, the fixing assembly 600 is rotated to lock the switch assembly 300 in the start position. With the arrangement of the fixing assembly 600, when the motor 200 of the electric tool rotates, even if the trigger 310 is accidentally touched, the fixing assembly 600 will not be triggered to rotate, so that the position of the fixing assembly 600 will not change, and then the trigger 310 will not be unlocked, thereby improving the reliability of the trigger 310 locking, making the reliability of the motor 200 rotation process better, and improving the work efficiency and quality.

[0101] The present embodiment also provides an operation method of an electric tool, the electric tool comprising a housing 100, a motor 200, a switch assembly 300 for a user to operate to switch between a start position and a stop position, and a fixing assembly 600 for a user to operate to lock the switch assembly 300 in the start position. The operation method comprises: when the switch assembly 300 is in the start position and the switch assembly 300 cooperates with the fixing assembly 600, rotating the fixing assembly 600 to lock the switch assembly 300 in the start position. The above arrangement makes it possible that when the motor 200 of the electric tool rotates, even if the trigger 310 is accidentally touched, the fixing assembly 600 will not be triggered to rotate, so that the position of the fixing assembly 600 will not change, and then the trigger 310 will not be unlocked, thereby improving the reliability of the trigger 310 locking, making the reliability of the motor 200 rotation process better, and improving the work efficiency and quality.

[0102] The specific method of locking the trigger 310 is briefly introduced as follows. When the trigger 310 is in the stop position, press the trigger 310 to the start position. At this time, the motor 200 keeps rotating, and the button 610 is pressed so that the second fixing member 630 is inserted into the ring. The button 610 is rotated so that the first fixing member 620 and the first stop member 121 cooperate. At this time, the second elastic member 640 is compressed; release the button 610, and under the action of the second elastic member 640, the protrusion 621 is inserted into the recessed portion 1211, and the trigger 310 is locked in the start position. When it is necessary to unlock the trigger 310, the button 610 is turned to disengage the protrusion 621 from the recessed portion 1211, and the button 610 is continued to be turned to separate the first fixing member 620 and the first stop member 121 and move to one side of the second stop member 122. The button 610 is released, and under the action of the second elastic member 640, the button 610 moves away from the shell 100 and drives the second fixing member 630 to be pulled out of the ring, and at the same time drives the first fixing member 620 to fit with the second stop member 122. At this time, the trigger 310 is unlocked, and under the action of the first elastic member 320, the trigger 310 automatically moves to the parking position.

[0103] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. An electric tool comprising: case; a motor, at least partially disposed in the housing, the motor comprising a rotating shaft rotatable about a motor axis; A switch assembly, for being operated by a user to switch between a start position and a stop position; A fixing assembly, comprising a button and a first fixing member, wherein the button is connected to the first fixing member; the button is arranged on the outside of the housing, and the first fixing member is arranged on the inside of the housing; It is characterized in that The inner side of the housing includes a first stopper matched with the first fixing member; When the switch assembly is in the start position and the switch assembly cooperates with the fixing assembly, the button is rotated so that the first fixing member cooperates with the first stopper to lock the switch assembly in the start position.

2. The electric tool according to claim 1, characterized in that: The first stopper is provided with a recessed portion and the first fixing member is provided with a protruding portion, or the first stopper is provided with the protruding portion and the first fixing member is provided with the recessed portion, and the protruding portion is inserted into the recessed portion to prevent the button from being rotated.

3. The electric tool according to claim 1, characterized in that: The first fixing member includes a rod-shaped portion and a crimping portion connected to each other, and the rod-shaped portion is connected to the button; when the first fixing member cooperates with the first stopper, the crimping portion is crimped to the first stopper, and the length of the rod-shaped portion is the same as that of the first stopper.

4. The electric tool according to claim 1, characterized in that: The fixing assembly also includes a second fixing member, which is connected to the button. The switch assembly includes a stop member. When the switch assembly is located at the start position, the button is pressed to make the second fixing member cooperate with the stop member and prevent the switch assembly from moving to the stop position.

5. The electric tool according to claim 4, characterized in that: A clamping portion extends radially from one end of the second fixing member away from the button, and the second fixing member cooperates with the stopper. When the switch assembly loses external force, the clamping portion is clamped on the side of the stopper away from the button.

6. The electric tool according to claim 1, characterized in that: The inner side of the housing includes a second stopper matched with the first fixing member; and before the button is rotated, the second stopper matches with the first fixing member.

7. The electric tool according to claim 6, characterized in that: The first fixing member includes a rod-shaped portion and a crimping portion connected to each other, and the rod-shaped portion is connected to the button; when the first fixing member cooperates with the second stop member, the crimping portion is crimped to the second stop member, and the length of the rod-shaped portion is greater than the length of the second stop member.

8. The electric tool according to claim 1, characterized in that: The fixing assembly includes an elastic member, which is arranged between the housing and the button and is used to apply elastic force to the button so that the button is away from the housing.

9. The electric tool according to any one of claims 1 to 8, characterized in that: When the switch assembly is in the start position and the switch assembly cooperates with the fixing assembly, the button is rotated to release the first fixing member from the first stopper, so that the fixing assembly is reset to the initial position and is unlocked from the switch assembly.

10. An electric tool comprising: case; a motor, at least partially disposed in the housing, the motor comprising a rotating shaft rotatable about a motor axis; A switch assembly, for being operated by a user to switch between a start position and a stop position; It is characterized in that The electric tool also includes a fixing assembly; When the switch assembly is in the activation position and the switch assembly cooperates with the fixing assembly, the fixing assembly is rotated to lock the switch assembly in the activation position.

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