Operating mechanism of electric tool and electric tool

Abstract

The utility model discloses an operating mechanism of an electric tool, which belongs to the technical field of electric tools, solves the problem that the operating mechanism in the prior art is easy to trigger mistakenly, and adopts the technical scheme that the operating mechanism mainly comprises a base, a switch, a trigger rotationally mounted on the base and a button mounted on the base in a sliding manner, the trigger is provided with an initial position far away from the switch and a triggering position used for triggering the switch, the button comprises a first locking part and a second locking part which are arranged at an interval in the sliding direction of the button, and the button is provided with a first locking position and a second locking position; the button is located at the first locking position and abuts against the trigger through the first locking part so as to lock the trigger at the initial position, when the button is located at the second locking position, the trigger can rotate to the triggering position from the initial position, and the button locks the trigger at the triggering position through the second locking part. The utility model is mainly used for effectively reducing the false triggering of the operating mechanism. The utility model further discloses an electric tool.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to an operating mechanism of an electric tool and the electric tool. Background Art

[0002] An angle grinder is a tool used for cutting or grinding stone or metal. It relies on a switch to start and stop the machine. To enhance the user experience, prior art, such as utility model patent CN209615103U, discloses a lockable operating structure, a lockable switch, and an angle grinder. By providing a locking member that locks into a first limiting hole and a second limiting hole on a button, the button is continuously locked in two positions. By setting one position as the working position and the other as the non-working position, the button can be locked in the working position, maintaining the working state. This eliminates the need for long-term manual operation and is suitable for long-term use. However, when the power is on, accidentally touching the button will start the machine, causing personal injury or equipment damage, posing a serious safety hazard. Utility Model Content

[0003] The purpose to be achieved by the present invention is to provide an operating mechanism of an electric tool, which solves the problem that the operating mechanism in the prior art is easily triggered by mistake, effectively reduces the number of false triggering of the operating mechanism, and improves the safety of use.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: an operating mechanism of an electric tool, comprising a base, a switch, a trigger rotatably mounted on the base, and a button slidably mounted on the base, the trigger having an initial position away from the switch and a trigger position for triggering the switch, the trigger having a pressing stroke for being pressed from the initial position to the trigger position, the button comprising a first locking portion and a second locking portion spaced apart along its sliding direction, the button having a first locking position and a second locking position, when the trigger is in the initial position, the button is in the first locking position and is abutted against the trigger by the first locking portion to lock it in the initial position, when the button is in the second locking position, the trigger can be rotated from the initial position to the trigger position, and the button locks the trigger in the trigger position by the second locking portion.

[0005] After adopting the above technical solution, the present invention has the following advantages: the first locking member ensures that the trigger will not be accidentally moved to the trigger position when not in use, thereby avoiding the risk of unintentional activation of the power tool. In particular, during transportation or storage, the button must be pressed first to release the trigger lock, which requires the user to do so intentionally, thereby reducing the possibility of accidental activation. Secondly, the second locking member can fix the trigger after it reaches the trigger position, which means that the user does not need to continuously apply force to the trigger during continuous work, reducing hand fatigue. In addition, the design of the independent locking member can provide more precise and stable control. In particular, when the power tool vibrates during the startup process, a more complex second locking member can be set to provide a more stable locking effect. Of course, when the power tool is not started, a simpler first locking member can be set to lock the trigger in the initial position. Finally, the different locking positions of the button allow the user to choose whether to lock the trigger as needed. The position of the button can also help the user understand whether the power tool is currently locked, reducing the risk of misoperation and making the startup of the power tool more intuitive and controllable.

[0006] Furthermore, the trigger is rotatably mounted on the base via a rotating shaft, the sliding direction of the button is the same as the axial direction of the rotating shaft, and the button is located between the trigger and the switch.

[0007] With the aforementioned technical solution, the layout of the button and trigger takes into account ergonomic principles, allowing users to apply force naturally during operation. The button and trigger are respectively actuated by two positions of the hand, specifically by pressing the thumb joint and grasping with four fingers, making locking and unlocking the trigger more convenient.

[0008] Furthermore, the first locking portion is a limiting rib formed by the button protruding and extending toward the trigger. The button is located at the first locking position and abuts against the trigger through the limiting rib to lock it in the initial position.

[0009] With the aforementioned technical solution, the direct contact between the limit rib and the trigger provides a physical barrier, effectively preventing accidental triggering of the trigger. The contact between the limit rib and the trigger can be very precise. When the limit rib is against the trigger, the user can clearly feel a "click" sound or a change in feel. This instant feedback can help the user confirm whether the trigger has been correctly locked, reducing the possibility of operational errors. The limit rib design makes it easy to unlock the trigger. You only need to slide the button away from the first position. The limit rib is no longer in contact with the trigger, and you can easily press the trigger.

[0010] Furthermore, the trigger is provided with a supporting rib protruding and extending toward the button. When the button is located in the first locking position, the trigger is abutted against the limiting rib through the supporting rib.

[0011] By adopting the above-mentioned technical solution, the support rib can supplement the distance between the trigger and the limiting rib, and can shorten the length of the limiting rib. The shorter the length of the limiting rib, the less likely the limiting rib is to deform. Secondly, by making the support rib contact with the limiting rib, rather than directly making the trigger body contact with the limiting rib, the stress can be dispersed and the wear in the high-stress area can be reduced, thereby ensuring the service life of the trigger. In addition, the shape and position of the support rib can be further optimized to adapt to the shape of the limiting rib, so that the interaction between the support rib and the limiting rib forms a more stable mechanical lock.

[0012] Furthermore, the button also includes an avoidance space located on one side of the limiting rib, the avoidance space and the limiting rib are arranged along the axial direction of the button, and the avoidance space is located on the pressing stroke to avoid the supporting rib.

[0013] With the aforementioned technical solution, the avoidance space ensures that the support rib can pass through unimpeded during the pressing stroke, avoiding any unnecessary contact with the button, thereby ensuring smooth and continuous movement of the trigger.

[0014] Furthermore, the trigger is provided with a hook, and the second locking portion includes a first snapping portion extending in a direction perpendicular to the pressing stroke of the trigger and a second snapping portion extending in a sliding direction perpendicular to the button. By pressing the button, the surface of the hook can abut against the first snapping portion to limit the rotation of the trigger, and the surface of the hook can abut against the second snapping portion to limit the sliding of the button.

[0015] By adopting the above technical solution, the cooperation between the hook and the first snapping part can lock the rotation of the trigger, while the cooperation with the second snapping part can lock the sliding of the button, realizing a double locking mechanism. When the button is in the second locking position, it is less likely to loosen, and the trigger can be locked more stably in the trigger position.

[0016] Furthermore, a first elastic member is provided between the trigger and the base, and the first elastic member provides a force for the trigger to be reset to an initial position. A second elastic member is provided between the button and the base, and the second elastic member provides a force for the button to be reset to the first position.

[0017] With the above technical solution, when the trigger or button is released, the restoring force of the first elastic member and the second elastic member will push them back to their initial position, reducing the risk of accidental triggering. Especially in an emergency, the tool can be quickly stopped, improving operational safety, eliminating the need for manual reset, improving operational efficiency and convenience, and reducing forgetfulness in human operations.

[0018] Furthermore, the trigger is provided with a supporting rib protruding and extending toward the button, and the supporting rib is provided with a limiting groove and a limiting hole extending along the rotation direction of the trigger. The limiting groove and the limiting hole are radially connected through a connecting section, and the position of the supporting rib at the connecting section is provided with a limiting step, and the size of the first locking part and the second locking part is larger than the width of the connecting section. The first locking part can abut against the limiting step to lock the trigger in the initial position, and the second locking part can be stuck in the limiting hole to lock the trigger in the trigger position.

[0019] By adopting the above technical solution, the design of the limiting groove and the limiting hole provides a clear locking position, ensuring the stability of the trigger in the initial position and the trigger position, avoiding unnecessary shaking or position displacement, and the abutment between the first locking part and the limiting step and the insertion of the second locking part into the limiting hole form a stable mechanical lock.

[0020] Another object of the present utility model is to disclose an electric tool, comprising a body and a controller, an electronic component and an operating mechanism of the electric tool as described in any one of the above embodiments, wherein the controller is simultaneously connected to a switch and an electronic component signal.

[0021] By adopting the above technical solution, the operating mechanism can be triggered in the non-operating state, thereby effectively preventing the power tool from being accidentally started, greatly reducing the risk of safety accidents caused by accidental touch, and helping to improve the safety of power tool use.

[0022] Furthermore, the body includes a handle portion and a shell portion located at the rear side of the handle portion, the operating mechanism is located between the handle portion and the shell portion, the electronic components and switches are installed in the handle portion, and the controller is installed in the shell portion.

[0023] By adopting the above technical solution, the electronic components, switch and controller are respectively arranged in the handle and the housing, which makes full use of the space inside the power tool. In addition, since the switch is small in size, sufficient space can be left in the handle for installing the electronic components, and the handle can be made small and easy to hold, which is suitable for ergonomics. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is a structural diagram of the operating mechanism of the electric tool in Example 1 of the present utility model;

[0026] Figure 2 This is an exploded view of the operating mechanism of the electric tool in Example 1 of the present utility model;

[0027] Figure 3 This is a structural diagram of a button in Example 1 of the present utility model;

[0028] Figure 4 This is a structural diagram of the operating mechanism of Example 1 of the present utility model, with the trigger in a free pressing position;

[0029] Figure 5 This is a schematic structural diagram of the operating mechanism after the trigger is pressed and moved in Example 1 of the present utility model;

[0030] Figure 6 This is a structural diagram of the operating mechanism of Example 1 of the present utility model, in which the trigger is locked in the trigger position;

[0031] Figure 7 This is a structural diagram of the operating mechanism for disengaging the hook from the button hole in Example 1 of the present utility model;

[0032] Figure 8 This is a structural diagram of the operating mechanism of Example 1 of the present utility model, in which the supporting ribs are in the avoidance space;

[0033] Figure 9 This is a structural diagram of the operating mechanism for returning the trigger to its initial position in Example 1 of the present utility model;

[0034] Figure 10 This is a schematic diagram of the structure of the operating mechanism of Example 2 of the present utility model;

[0035] Figure 11 This is a schematic diagram of the structure of the electric tool of Example 3 of the present utility model.

[0036] In the figure, 100, switch; 110, trigger; 111, supporting rib; 112, hook; 113, trigger part; 114, limiting groove; 115, limiting hole; 116, connecting section; 117, limiting step; 118, limiting edge; 120, button; 1201, first section; 1202, second section; 121, first locking part; 1211, limiting rib; 1212, limiting block; 122, second locking part; 1221, first buckling part; 1222, second buckling part; 1223, buckle hole; 1224, limiting ring; 123, avoidance space; 124, avoidance area; 130, first elastic member; 140, second elastic member; 200, handle part; 210, housing part; 220, controller; 230, electronic component. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0038] The terms "first," "second," "third," "fourth," and so on (if any) in the description and claims of the present invention and the drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0039] It should be understood that in various embodiments of the present invention, the size of the serial numbers of the processes does not mean the order of execution. The order of execution of the processes should be determined by their functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0040] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0041] It should be understood that in the present invention, "multiple" refers to two or more. "And / or" is only a description of the association relationship of related objects, indicating that three relationships can exist. For example, X and / or Y can represent three situations: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the previous and next related objects are in an "or" relationship. "Including X, Y and Z", "Including X, Y, Z" means that X, Y, and Z are all included, "Including X, Y or Z" means that one of X, Y, and Z is included, and "Including X, Y and / or Z" means that any one, any two, or any three of X, Y, and Z are included.

[0042] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0043] Example 1:

[0044] like Figures 1 to 9As shown, the present invention provides an operating mechanism of an electric tool, including a base, a switch 100, a trigger 110 rotatably mounted on the base, and a button 120 slidably mounted on the base. The trigger 110 has an initial position away from the switch 100 and a trigger position for triggering the switch 100. The trigger 110 has a pressing stroke for being pressed from the initial position to the trigger position. The button 120 includes a first locking portion 121 and a second locking portion 122 spaced apart along its sliding direction. The button 120 has a first locking position and a second locking position. When the trigger 110 is in the initial position, the button 120 is in the first locking position and abuts against the trigger 110 through the first locking portion 121 to lock it in the initial position, ensuring that the trigger 110 will not accidentally move to the trigger position when not in use, thereby avoiding the risk of unintentional activation of the electric tool. In particular, during transportation or storage, the button 120 must first be pressed to unlock the trigger 110, which requires the user to do so intentionally, thereby reducing the possibility of accidental activation. Secondly, when the button 120 is in the second locking position, the trigger 110 can be rotated from the initial position to the trigger position. The button 120 locks the trigger 110 in the trigger position through the second locking portion 122, which means that the user does not need to continuously apply force to the trigger 110 when performing continuous work, reducing hand fatigue. The different locking positions of the button 120 allow the user to choose whether to lock the trigger 110 as needed. The position of the button 120 can also help the user understand whether the power tool is currently locked, reducing the risk of misoperation and making the startup of the power tool more intuitive and controllable.

[0045] Specifically, the trigger 110 is rotatably mounted on the base via a rotating shaft. Since the operating mechanism requires the operation of both the button 120 and the trigger 110 when it is activated, the sliding direction of the button 120 is aligned with the axial direction of the rotating shaft to facilitate user operation. The button 120 is located between the trigger 110 and the switch 100. The layout of the button 120 and the trigger 110 takes ergonomic principles into consideration, allowing the user to naturally apply force during operation. The button 120 and the trigger 110 are actuated by two separate positions of the hand, specifically by thumb joint pressing and four-finger gripping, making locking and unlocking the trigger 110 more convenient.

[0046] In addition, the base is provided with an installation channel for installing the button 120, and the button 120 includes a first section 1201 located inside the base and a second section 1202 located outside the base. The first locking portion 121 and the second locking portion 122 are arranged on the first section 1201 along the axial direction of the button 120, and the second section 1202 is used for the user to manually operate the button 120 to make the button 120 slide relative to the base, thereby changing the positions of the first locking portion 121 and the second locking portion 122 relative to the trigger 110 to control the locking and unlocking of the trigger 110.

[0047] When the power tool is not started, the force on the power tool is relatively stable, and a relatively simple first locking portion 121 can be provided to lock the trigger 110 in the initial position.

[0048] Preferably, the first locking portion 121 is a limiting rib 1211 formed by the button 120 protruding and extending toward the trigger 110. The button 120 is located in the first locking position and is abutted against the trigger 110 by the limiting rib 1211 to lock it in the initial position. The direct contact between the limiting rib 1211 and the trigger 110 provides a physical barrier, effectively preventing accidental triggering of the trigger 110. The contact between the limiting rib 1211 and the trigger 110 can be very precise. When the limiting rib 1211 abuts against the trigger 110, the user can clearly feel a "click" sound or a change in feel. This instant feedback can help the user confirm whether the trigger 110 has been correctly locked, reducing the possibility of operational errors. The design of the limiting rib 1211 makes it simple to unlock the trigger 110. You only need to slide the button 120 away from the first position, and the limiting rib 1211 no longer contacts the trigger 110, so you can easily press the trigger 110.

[0049] Since the pressing stroke of the trigger 110 has a certain stroke, the limiting rib 1211 needs to be set to a longer length so that it can offset the trigger 110 when the trigger 110 is in the initial position. However, an overly long limiting rib 1211 is prone to deformation. For this reason, in this embodiment, the trigger 110 is provided with a supporting rib 111 protruding and extending toward the button 120. The supporting rib 111 can supplement the distance between the trigger 110 and the limiting rib 1211 and shorten the length of the limiting rib 1211. When the button 120 is in the first locking position, the trigger 110 is offset against the limiting rib 1211 through the supporting rib 111, rather than directly allowing the trigger 110 body to contact the limiting rib 1211. This can disperse stress and reduce wear in high stress areas, thereby ensuring the service life of the trigger 110. In addition, the shape and position of the supporting rib 111 can be further optimized to adapt to the shape of the limiting rib 1211, so that the interaction between the supporting rib 111 and the limiting rib 1211 forms a more stable mechanical lock. Specifically, the mechanical locking performance can be improved by setting the abutment surface of the support rib 111 and the limiting rib 1211 larger, or by setting a slot matching structure on the surface of the support rib 111 or the limiting rib 1211.

[0050] Due to the provision of the support rib 111, the support rib 111 rotates during the pressing stroke of the trigger 110. In order to avoid the trigger 110 being stuck due to the support rib 111 conflicting with other structures, the button 120 also includes an avoidance space 123 located on one side of the limiting rib 1211. The avoidance space 123 and the limiting rib 1211 are arranged along the axial direction of the button 120. The avoidance space 123 is in the pressing stroke to avoid the support rib 111. The avoidance space 123 ensures that the support rib 111 can pass through unimpeded during the pressing stroke, avoiding any unnecessary contact with the button 120, thereby ensuring the smooth and continuous movement of the trigger 110.

[0051] During the startup of the electric tool, the electric tool generates a large vibration, and the second locking member is prone to loosening. In order to provide a more stable locking effect, a more complex second locking portion 122 can be provided.

[0052] Preferably, a hook 112 is provided on the trigger 110, and the second locking portion 122 includes a first buckling portion 1221 extending in a direction perpendicular to the pressing stroke of the trigger 110 and a second buckling portion 1222 extending in a sliding direction perpendicular to the button 120. The first buckling portion 1221 and the second buckling portion 1222 together form a buckle hole 1223. By pressing the button 120, the hook 112 can be snapped into the buckle hole 1223. The surface of the hook 112 can abut against the first buckling portion 1221 to limit the rotation of the trigger 110, and the surface of the hook 112 can abut against the second buckling portion 1222 to limit the sliding of the button 120, thereby realizing a double locking mechanism. When the button 120 is in the second locking position, it is less likely to loosen, and the trigger 110 can be locked more stably in the trigger position.

[0053] It should be noted that the avoidance space 123 is located between the first locking portion 121 and the second locking portion 122. In order to facilitate the hook 112 to be snapped into the button hole 1223, the lateral and longitudinal dimensions of the avoidance space 123 are both larger than the lateral and longitudinal dimensions of the support rib 111. The support rib 111 can move in the avoidance space 123, so that the trigger 110 can be freely pressed and reset. An avoidance area 124 is provided above the first snapping portion 1221 and the second snapping portion 1222. The avoidance area 124 is connected to the avoidance space 123. The avoidance area 124 is located on one lateral side of the avoidance space 123. The hook 112 can move freely in the avoidance space 123 and can be snapped into the button hole 1223 by moving into the avoidance area 124.

[0054] Furthermore, the hook 112 is disposed on the supporting rib 111 , so that the hook 112 is away from the trigger 110 body, and thus the hook 112 can easily pass through the avoidance space 123 and the avoidance area 124 to enter or move out of the button hole 1223 .

[0055] In order to enable the trigger 110 and the button 120 to be reset in time in case of operation interruption or emergency, so that the trigger 110 is locked in the initial position, further improving safety, the operating mechanism also includes a first elastic member 130 and a second elastic member 140. The trigger 110 is movably set on the base along the pressing stroke by the first elastic member 130, and the button 120 is slidably set on the base by the second elastic member 140. The first elastic member 130 provides a force for the trigger 110 to reset from the trigger position to the initial position. The setting of the first elastic member 130 helps to automatically restore the trigger 110 to the initial position, and the second elastic member 140 provides a force for the button 120 to reset to the first position, ensuring that after each operation is completed, the button 120 will automatically return to the first position, so that the first locking portion 121 locks the trigger 110 in the initial position, which helps to prevent accidental startup of the power tool, especially in an emergency, the operation of the power tool can be stopped quickly, reducing the possibility of forgetfulness in human operation.

[0056] In order to trigger the switch 100 more accurately, the trigger 110 is further provided with a trigger portion 113 extending along its rotation direction. The trigger portion 113 is used to trigger the switch 100. During the movement of the trigger 110 from the reset position to the trigger position, the switch 100 is triggered only when the trigger 110 reaches the correct position, thereby enhancing the safety of the operation. Secondly, the trigger portion 113 and the support rib 111 are spaced apart in the length direction of the trigger 110, effectively preventing the support rib 111 from touching the switch 100 and causing accidental triggering, further enhancing the safety and reliability of the operation, and optimizing the internal layout, making the entire mechanism more compact.

[0057] Preferably, the switch 100 is a micro switch, which has a relatively sensitive response. Of course, the switch 100 can also be a pressure switch, a proximity switch, a magnetic switch, a rotary encoder switch, etc.

[0058] In the initial state, if Figure 1 As shown, the first elastic member 130 pushes the trigger 110 to the initial position, and the second elastic member 140 pushes the button 120 to make the button 120 in the first position. At this time, the limiting rib 1211 abuts against the supporting rib 111, and the trigger 110 cannot be pressed directly, which can prevent accidental activation.

[0059] The first step to start the operating mechanism: Figure 4 As shown, the button 120 is pressed in the direction of the arrow, so that the limiting rib 1211 is misaligned with the supporting rib 111, and the supporting rib 111 is located in the avoidance space 123. At this time, the trigger 110 can be triggered freely;

[0060] Step 2: If Figure 5 As shown, press the trigger 110 in the direction of the arrow to extend the support rib 111 into the avoidance space 123;

[0061] Step 3: If Figure 6 As shown, continue to press the button 120 in the direction of the arrow to move the support rib 111 laterally relative to the avoidance space 123, so that the hook 112 enters the avoidance channel;

[0062] Step 4: If Figure 6 As shown, the trigger 110 is released, the first elastic member 130 drives the trigger 110 to move in the direction of the arrow, and the button 120 is in the second position, so that the hook 112 is locked into the button hole 1223, so that the trigger 110 is in a locked state. At this time, the trigger part 113 triggers the switch 100;

[0063] The first step to release the self-locking of the operating mechanism: Figure 7 As shown, the trigger 110 is pressed in the direction of the arrow, so that the hook 112 is disengaged from the button hole 1223 and enters the avoidance area 124;

[0064] Step 2: If Figure 8 As shown, the button 120 moves in the direction of the arrow under the elastic return action of the second elastic member 140, and the support rib 111 moves laterally relative to the avoidance space 123, so that the hook 112 enters the avoidance space 123, and the trigger 110 can be pressed freely;

[0065] Step 3: If Figure 9 As shown, the trigger 110 is released, and the first elastic member 130 drives the trigger 110 to move toward the initial position until the support rib 111 is out of the avoidance space 123. At this time, the support rib 111 will not contact the limiting rib 1211 in the lateral direction. The button 120 moves toward the first position under the drive of the second elastic member 140, so that the limiting rib 1211 and the support rib 111 abut against each other, so that the trigger 110 is in a locked state and the trigger 110 cannot be pressed.

[0066] Example 2:

[0067] like Figure 10As shown, in this embodiment, the trigger 110 is provided with a supporting rib 111 protruding and extending toward the button 120, and the supporting rib 111 is provided with a limiting groove 114 and a limiting hole 115 extending along the rotation direction of the trigger 110, and the limiting groove 114 and the limiting hole 115 are radially connected through a connecting section 116, and the supporting rib 111 is provided with a limiting step 117 at the position of the connecting section 116, and the size of the first locking portion 121 and the second locking portion 122 is larger than the width of the connecting section 116. The design of the limiting groove 114 and the limiting hole 115 provides a clear locking position, and the first locking portion 121 can abut against the limiting step 117 to lock the trigger 110 in the initial position, and the second locking portion 122 can be snapped into the limiting hole 115 to lock the trigger 110 in the trigger position, ensuring the stability of the trigger 110 in the initial position and the trigger position, forming a stable mechanical lock.

[0068] It should be noted that the limiting groove 114 is located above the limiting hole 115, the first locking part 121 can be a limiting block 1212, and the second locking part 122 can be a limiting ring 1224 arranged along the circumference of the first section 1201. The diameter of the limiting ring 1224 and the width of the limiting block 1212 are greater than the width of the first section 1201, and the width of the first section 1201 is smaller than the connecting section 116. A limiting edge 118 is provided on the side of the limiting hole 115 close to the second section 1202. The inner ring diameter of the limiting edge 118 is smaller than the diameter of the limiting ring 1224 and larger than the width of the first section 1201. Therefore, when the limiting ring 1224 is located in the limiting hole 115, the limiting edge 118 can form a limiting effect on the button 120 along the sliding direction, so that the limiting ring 1224 can lock the trigger 110 more stably when it is in the limiting hole 115.

[0069] In the initial state, the limit block 1212 and the limit step 117 support each other, and the trigger 110 cannot be pressed directly, which can prevent accidental activation;

[0070] The first step of starting the operating mechanism: pressing the button 120, the limiting block 1212 and the limiting step 117 are misaligned, and the limiting ring 1224 passes through the limiting groove 114;

[0071] Step 2: Continue to press the button 120 and press the trigger 110 to make the first section 1201 extend into the limiting hole 115;

[0072] Step 3: Then release the button 120, so that the button 120 is reset to the first position by the action of the second elastic member 140. At this time, the limiting ring 1224 enters the limiting hole 115, and the limiting ring 1224 respectively abuts against the limiting edge 118 and the connecting section 116, so that the trigger 110 is in a self-locking state. At this time, the trigger part 113 triggers the switch 100.

[0073] Unlocking the operating mechanism is performed in the reverse order of the steps for activating the operating mechanism, wherein the directions of pressing the button 120 and the trigger 110 are reversed.

[0074] For matters not described in this embodiment, reference may be made to the above embodiments.

[0075] Example 3:

[0076] like Figure 11 As shown, this embodiment discloses an electric tool, including a main body and a controller 220, an electronic component 230 and an operating mechanism of the electric tool as in the above embodiment. The controller 220 is also connected to the switch 100 and the electronic component 230 for signal connection. The self-locking and anti-locking functions can prevent the device from being accidentally started in a non-operating state, greatly reducing the risk of safety accidents caused by misoperation, which is conducive to improving the safety of the use of the electric tool.

[0077] Specifically, the main body includes a handle portion 200 and a shell portion 210 located at the rear side of the handle portion 200, the operating mechanism is located between the handle portion 200 and the shell portion 210, the electronic component 230 and the switch 100 are installed in the handle portion 200, and the controller 220 is installed in the shell portion 210, which makes full use of the space inside the power tool. In addition, since the switch 100 is small in size, sufficient space can be left in the handle portion 200 to install the electronic component 230, and the handle portion 200 can be made smaller, easy to hold, and ergonomic.

[0078] It should be noted that the base can be replaced by the body, and the trigger 110, button 120, and switch 100 can be directly mounted on the body.

[0079] It should be noted that power tools include angle grinders, polishers, cutters, circular saws, multi-function machines, pruners, lawn mowers, chain saws, etc.

[0080] In addition to the above-mentioned preferred embodiments, the present invention has other implementation methods. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. An operating mechanism of an electric tool, comprising a base, a switch (100), a trigger (110) rotatably mounted on the base, and a button (120) slidably mounted on the base, wherein the trigger (110) has an initial position away from the switch (100) and a trigger position for triggering the switch (100), and the trigger (110) has a pressing stroke for moving from the initial position to the trigger position when pressed, characterized in that: The button (120) comprises a first locking portion (121) and a second locking portion (122) arranged at intervals along the sliding direction thereof. The button (120) has a first locking position and a second locking position. When the trigger (110) is located at the initial position, the button (120) is located at the first locking position and abuts against the trigger (110) through the first locking portion (121) to lock it in the initial position. When the button (120) is in the second locking position, the trigger (110) can be rotated from the initial position to the trigger position, and the button (120) locks the trigger (110) in the trigger position through the second locking portion (122).

2. The operating mechanism of the electric tool according to claim 1, characterized in that: The trigger (110) is rotatably mounted on the base via a rotating shaft, the sliding direction of the button (120) is the same as the axial direction of the rotating shaft, and the button (120) is located between the trigger (110) and the switch (100).

3. The operating mechanism of the electric tool according to claim 1 or 2, characterized in that: The first locking portion (121) is a limiting rib (1211) formed by the button (120) protruding and extending toward the trigger (110). The button (120) is located at the first locking position and abuts against the trigger (110) through the limiting rib (1211) to lock it in the initial position.

4. The operating mechanism of the electric tool according to claim 3, characterized in that: The trigger (110) is provided with a supporting rib (111) protruding and extending toward the button (120); when the button (120) is located at the first locking position, the trigger (110) abuts against the limiting rib (1211) via the supporting rib (111).

5. The operating mechanism of the electric tool according to claim 4, characterized in that: The button (120) further comprises an avoidance space (123) located on one side of the limiting rib (1211); the avoidance space (123) and the limiting rib (1211) are arranged along the axial direction of the button (120); and the avoidance space (123) is located on the pressing stroke to avoid the supporting rib (111).

6. The operating mechanism of the electric tool according to claim 1, characterized in that: The trigger (110) is provided with a hook (112), and the second locking portion (122) includes a first buckling portion (1221) extending in a direction perpendicular to the pressing stroke of the trigger (110) and a second buckling portion (1222) extending in a sliding direction perpendicular to the button (120). By pressing the button (120), the surface of the hook (112) can abut against the first buckling portion (1221) to limit the rotation of the trigger (110), and the surface of the hook (112) can abut against the second buckling portion (1222) to limit the sliding of the button (120).

7. The operating mechanism of the electric tool according to claim 1, characterized in that: A first elastic member (130) is provided between the trigger (110) and the base, and the first elastic member (130) provides a force for the trigger (110) to be reset to an initial position. A second elastic member (140) is provided between the button (120) and the base, and the second elastic member (140) provides a force for the button (120) to be reset to a first position.

8. The operating mechanism of the electric tool according to claim 1, wherein: The trigger (110) is provided with a supporting rib (111) protruding and extending in the direction of the button (120); the supporting rib (111) is provided with a limiting groove (114) and a limiting hole (115) extending in the rotation direction of the trigger (110); the limiting groove (114) and the limiting hole (115) are radially connected through a connecting section (116); the supporting rib (111) is provided with a limiting step (117) at the position of the connecting section (116); the size of the first locking portion (121) and the second locking portion (122) is larger than the width of the connecting section (116); the first locking portion (121) can abut against the limiting step (117) to lock the trigger (110) in the initial position; the second locking portion (122) can be clamped into the limiting hole (115) to lock the trigger (110) in the trigger position.

9. An electric tool, characterized in that: The invention comprises a main body, a controller (220) arranged on the main body, an electronic component (230), and an operating mechanism of an electric tool according to any one of claims 1 to 8, wherein the controller (220) is simultaneously connected to a switch (100) and the electronic component (230) for signal communication.

10. The electric tool according to claim 9, wherein: The body comprises a handle portion (200) and a housing portion (210) located at the rear side of the handle portion (200). The operating mechanism is located at the handle portion (200). and the housing portion (210), the electronic assembly (230) and the switch (100) are installed in the handle portion (200), The controller (220) is installed in the housing (210).

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