Switch assembly and electric tool

Abstract

The utility model provides a switch assembly and an electric tool, and belongs to the technical field of electric tools, and the switch assembly comprises a housing, a first switch, a button, a locking member and a trigger. Wherein the first switch is arranged in the shell; the button is installed on the shell and triggers the first switch in response to pressing operation. The locking piece is rotatably arranged on the first switch in a sleeving manner, and an opening is formed in the locking piece; the trigger is rotationally installed on the shell and abuts against the locking piece so as to drive the locking piece to be switched between the locking position and the unlocking position. When the locking piece is located at the locking position, the locking piece stops the button from pressing the first switch; when the locking piece rotates to the unlocking position, the opening avoids the button and allows the button to press the first switch. According to the switch assembly, the number of parts for realizing functions is effectively reduced, the matching structure between the parts is simplified, the stress balance of the parts during movement is ensured, and the switch assembly is compact in structure and high in reliability.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, specifically to a switch assembly and a power tool. Background Technology

[0002] Power tools, with their high efficiency and convenience, are widely used in construction, home repair, and gardening, significantly improving productivity and daily life. Power tools typically have locking mechanisms on their switches to lock and unlock them, preventing accidental activation and potential safety hazards.

[0003] However, existing switch assemblies introduce complex linkage structures to achieve press-to-lock and unlock under external operation control. These self-locking structures use a large number of parts, and the linkage relationship between the parts is complex, which makes the switch assembly complicated and the structural reliability low. For example, the translational self-locking structure uses multiple connecting arms to achieve the translation of the locking part driven by the external operating part. The locking part is subjected to uneven force during use, which can easily lead to functional failure.

[0004] Therefore, there is a need to provide a switch assembly and a power tool to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the problems existing in the prior art, the present invention provides a switch assembly and a power tool to improve the technical problems of complex assembly structure and low structural reliability of existing switch assemblies.

[0006] To achieve the above-mentioned objectives and other related objectives, this utility model provides a switch assembly, which includes a housing, a first switch, a button, a locking element, and a trigger.

[0007] The first switch is located inside the housing; a button is installed in the housing and triggers the first switch in response to a pressing operation; a locking member is rotatably fitted onto the first switch and has an opening; a trigger is rotatably installed on the housing and abuts against the locking member to drive the locking member to switch between a locked position and an unlocked position; when the locking member is in the locked position, the locking member blocks the button from pressing the first switch; when the locking member rotates to the unlocked position, the opening avoids the button and allows the button to press the first switch.

[0008] In one example of this utility model, the locking member is provided with a protrusion that abuts against the trigger.

[0009] In one example of this utility model, a first elastic element is provided between the protrusion and the housing, and the first elastic element drives the locking element to reset to the locked position.

[0010] In one example of this utility model, the first elastic element is a torsion spring, which is fixed in the housing. One end of the first elastic element is connected to the protrusion, and the other end of the first elastic element is fixed to the housing.

[0011] In one example of this utility model, the trigger is provided with an abutment portion, which is located on the side of the trigger facing into the housing, and the abutment portion abuts against the protrusion.

[0012] In one example of this utility model, the button is provided with a pressing part and a limiting member. The pressing part can extend into the locking member and match the first switch. When the locking member is in the locked position, the top of the locking member abuts against the limiting member to prevent the pressing part from pressing the first switch. When the locking member is rotated to the unlocked position, the opening avoids the path of the limiting member moving axially.

[0013] In one example of this utility model, the button is further provided with a locking part, which surrounds the pressing part, a limiting member is provided between the locking part and the pressing part, and the top of the wall of the locking member is locked between the locking part and the pressing part.

[0014] In one example of this utility model, the limiting member is a reinforcing rib between the locking part and the pressing part.

[0015] In one example of this utility model, a second elastic member is provided between the trigger and the housing. One end of the second elastic member abuts against the side of the trigger facing into the housing, and the other end of the second elastic member abuts against the inner wall of the housing.

[0016] In one example of this utility model, the button is pressed in a first direction and the trigger is pressed in a second direction, the first direction being opposite to the second direction.

[0017] This utility model also provides an electric tool, which includes a support frame, a motor, a working part, and a switch assembly.

[0018] The support frame includes a mounting part and a handle; the motor is fixedly mounted on the mounting part; the working part is fixedly mounted on the output shaft of the motor; the switch assembly is located on the handle, and in the switch assembly, the first switch is located inside the housing; the button is mounted on the housing and triggers the first switch in response to a pressing operation; the locking member is rotatably fitted onto the first switch and has an opening; the trigger is rotatably mounted on the housing and abuts against the locking member to drive the locking member to switch between a locked position and an unlocked position; when the locking member is in the locked position, the locking member blocks the button from pressing the first switch; when the locking member rotates to the unlocked position, the opening avoids the button and allows the button to press the first switch.

[0019] In one example of this utility model, the first switch is a speed control switch, and the button is pressed to adjust the output shaft speed of the motor.

[0020] In one example of this utility model, the switch assembly further includes a second switch, which is electrically connected to the motor and is used to control the output shaft to rotate forward or backward.

[0021] This invention provides a switch assembly in which a locking member and a button above it are coaxially mounted on a first switch, and a movably mounted trigger abuts against the outer circumferential edge of the locking member. By activating the trigger, the user can rotate the locking member around the first switch. In the locked position, the locking member presses against the button on the top of the wall, thus locking the switch button. When the locking member is rotated to the unlocked position, the top opening allows it to bypass the movement path of the button pressing the first switch, thus unlocking the switch button.

[0022] This switch assembly utilizes the coaxial assembly of the first switch, locking element, and button to achieve limiting cooperation among the three components. Furthermore, it achieves locking or unlocking by external operation through the contact between the trigger and the locking element, or by triggering the first switch by pressing the button. In summary, this switch assembly effectively reduces the number of components required to perform the function, simplifies the mating structure between components, and ensures balanced force distribution during component movement, resulting in a compact and highly reliable switch assembly. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the switch assembly in one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the shell structure in one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the cooperative structure of the first switch, button, locking member and trigger in one embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the cooperative structure of the first switch, locking element, and trigger in one embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the cooperation structure of the first switch, locking element, and trigger in the housing in one embodiment of the present invention;

[0029] Figure 6 This is a top view of the mating structure of the first switch, locking element, and trigger in the housing according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the cooperative structure of the first switch, button, and locking component in one embodiment of the present utility model;

[0031] Figure 8 for Figure 7 A cross-sectional view along the AA direction;

[0032] Figure 9 This is a schematic diagram of the locking component in one embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the button structure in one embodiment of the present invention;

[0034] Figure 11 This is a top view of the button structure in one embodiment of the present invention;

[0035] Figure 12 This is a schematic diagram of the trigger structure in one embodiment of the present invention;

[0036] Figure 13 This is a schematic diagram of the structure of a power tool in one embodiment of the present invention;

[0037] Figure 14 This is a schematic diagram of the support frame in one embodiment of the present invention.

[0038] Component designation explanation

[0039] 1. Power tool; 10. Switch assembly; 20. Support frame; 201. Mounting part; 202. Handle; 203. Connecting arm; 30. Working part; 301. Motor; 302. Output shaft; 303. Interface structure;

[0040] 10. Switch assembly; 100. Housing; 110. First window; 120. Second window; 130. First limiting groove; 140. Second limiting groove; 141. Bayonet; 200. First switch; 300. Locking element; 310. Wall; 311. Opening; 320. Protrusion; 400. Button; 410. Cap; 411. Cavity; 420. Pressing part; 430. Limiting element; 440. Locking part; 500. Trigger; 510. Abutting part; 520. Second elastic element; 600. First elastic element; 700. Second switch. Detailed Implementation

[0041] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0042] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0043] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0044] Please see Figures 1 to 11 In one aspect, the present invention provides a switch assembly 10, which includes a housing 100, a first switch 200, a locking member 300, a button 400 and a trigger 500.

[0045] Please see Figures 1 to 6The housing 100 has a receiving cavity, and the first switch 200 is fixed in the receiving cavity. For example, the housing 100 is provided with a first limiting groove 130, and the first switch 200 is inserted and fixed in the first limiting groove 130. A locking member 300 is fitted onto the first switch 200. The locking member 300 includes a wall 310 surrounding the first switch 200, and the locking member 300 can rotate around the first switch 200. The side of the wall 310 facing away from the first switch 200 faces the locking member 300, and the wall 310 has an opening 311. One side of the opening 311 penetrates the side of the locking member 300 facing away from the first switch 200, and the other side of the opening 311 extends axially towards the bottom of the locking member 300. A button 400 is movably mounted on the housing 100. The housing 100 is provided with a first window 110, and the button 400 is inserted into the first window 110 to achieve a sliding connection on the housing 100. Button 400 is located on top of the first switch 200 and the locking member 300. Pressing button 400 triggers the first switch 200, which can be activated by pressing to open or close the first switch 200, or by adjusting the depth of button 400 pressing down on the first switch 200 to adjust its opening. Trigger 500 is rotatably mounted on housing 100, for example, by a hinged connection. Part of trigger 500 is located outside the receiving cavity for user pressing, while the portion of trigger 500 inside the receiving cavity abuts against the circumferential outer edge of the locking member 300. When trigger 500 rotates relative to housing 100, the abutment relationship pushes the locking member 300 to rotate around the first switch 200.

[0046] Please see Figures 3 to 8 The locking member 300 responds to user operation by abutting against the trigger 500, and rotates the locking and unlocking button 400 to press the first switch 200 under the drive of the active trigger 500. When the locking member 300 is in the locked position, the top of the wall 310 of the locking member 300 abuts against the button 400 to prevent the button 400 from pressing the first switch 200, thereby locking the first switch 200. When the user presses the trigger 500, it rotates relative to the housing 100. The rotating trigger 500 pushes the locking member 300 to rotate around the first switch 200. When the locking member 300 rotates to the unlocked position, the opening 311 at the top of the locking member 300 can avoid the displacement path of the button 400 pressing the first switch 200, thereby unlocking the first switch 200. At this time, the button 400 can press along the opening 311 to trigger the first switch 200.

[0047] In this embodiment, the locking position and unlocking position of the locking member 300 are both rotational positions of the locking member 300 relative to the first switch 200. It should be noted that the locking position is not limited to a specific rotational position of the locking member 300; the locking position can be one or more rotational positions of the locking member 300, or any rotational position of the locking member 300 within a rotation angle range. For example, in one embodiment... Figure 8 , Figure 10 and Figure 11 As shown, the bottom of the button 400 is provided with a limiting member 430 extending in a radial direction. The unlocking position is the rotational position in which the opening 311 of the locking member 300 is aligned with the limiting member 430. The locking position is the rotational position when the locking member 300 is not in the unlocking position.

[0048] Please see Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 9 In some embodiments, the locking member 300 is provided with a protrusion 320, which is located on the circumferential outer edge of the locking member 300 and extends outward in the radial direction. The portion of the trigger 500 located within the receiving cavity abuts against the protrusion 320. When the trigger 500 is rotated, it pushes the protrusion 320 to move circumferentially, thereby causing the locking member 300 to rotate around the first switch 200.

[0049] Please see Figures 3 to 6 In some embodiments, a first elastic member 600 is provided between the protrusion 320 and the housing 100. The first elastic member 600 is used to drive the locking member 300 to reset and rotate to the locked position. For example, when the locking member 300 leaves the preset initial position under the drive of the trigger 500, the first elastic member 600 can accumulate energy during the rotation of the locking member 300, and after the trigger 500 stops applying force to the locking member 300, it can drive the locking member 300 to reset and rotate to the initial position by pushing the protrusion 320 to move circumferentially. The initial position is the locked position.

[0050] Please see Figures 4 to 6In some embodiments, the first elastic element 600 is a torsion spring. A second limiting groove 140 is provided on the housing 100, with the opening of the second limiting groove 140 facing the inner side of the receiving cavity. The first elastic element 600 is inserted and fixed in the second limiting groove 140. The trigger 500 and the first elastic element 600 abut against both sides of the protrusion 320. The trigger 500 abuts against one side of the protrusion 320, and the first elastic element 600 is snapped into the second limiting groove 140. One end of the first elastic element 600 extends out of the second limiting groove 140 and abuts against the other side of the protrusion 320, while the other end of the first elastic element 600 is snapped into the slot 141 of the second limiting groove 140. The snapping directions of the main body of the first elastic element 600 and the other end of the first elastic element 600 in the slot 141 are orthogonal. One end of the first elastic member 600 can abut against the side of the protrusion 320, or it can be snapped into the limiting structure at the bottom of the protrusion 320. The limiting structure can be a slot or a blocking member.

[0051] Please see Figure 4 , Figure 5 , Figure 6 and Figure 12 In some embodiments, the trigger 500 is provided with an abutment portion 510, which is located on the side of the trigger 500 facing inwards from the housing 100. The abutment portion 510 extends from the trigger 500 into the housing 100. For example, the abutment portion 510 can be configured as a push rod extending from the trigger 500 into the housing 100. The abutment portion 510 abuts against the protrusion 320, and the plane on which the abutment portion 510 is located intersects with that of the protrusion 320. For example, in one example, when the locking member 300 is in a preset initial position, the extending direction of the abutment portion 510 is orthogonal to the plane on which the protrusion 320 is located, and this initial position is the locked position. When the trigger 500 rotates relative to the housing 100 under the user's pressing drive, the rotating trigger 500 pushes the protrusion 320 to move in the circumferential direction through the abutment portion 510, thereby causing the locking member 300 to rotate around the first switch 200.

[0052] Please see Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 12In some embodiments, a second elastic element 520 is further provided between the trigger 500 and the housing 100. The second elastic element 520 is used to drive the trigger 500 to return to its initial state after being pressed and rotated. In one example, the second elastic element 520 is a compression spring. One end of the second elastic element 520 abuts against the side of the trigger 500 facing inwards from the housing 100, and the other end of the second elastic element 520 abuts against the inner wall of the housing 100. One end of the second elastic element 520 is fixedly connected to the trigger 500 or the housing 100. For example, one end of the second elastic element 520 is snapped onto a positioning post provided on the trigger 500, and the other end of the second elastic element 520 extends into a positioning groove provided on the housing 100; or, both ends of the second elastic element 520 are fixedly connected to the trigger 500 and the housing 100, respectively.

[0053] Please see Figure 7 , Figure 8 , Figure 10 and Figure 11 In some embodiments, the button 400 includes a cap 410, a pressing portion 420, and a limiting member 430. The cap 410 has a cavity 411 at its bottom. When the button 400 is assembled onto the housing 100, the top of the wall 310 of the locking member 300 extends into the cavity 411 of the cap 410, and the sidewall of the cavity 411 surrounds the outside of the top of the wall 310 of the locking member 300. The pressing portion 420 is disposed at the bottom of the button 400 and located within the cavity 411 of the cap 410. The pressing portion 420 extends and protrudes from the bottom wall of the cavity 411 toward the open side of the cavity 411. The pressing portion 420 matches the first switch 200, and the button 400 triggers the first switch 200 by pressing the pressing portion 420. The limiting member 430 is disposed at the bottom of the button 400 and located in the cavity 411 of the cap body 410. The limiting member 430 is disposed on the outer edge of the pressing part 420 and can extend radially and axially around the pressing part 420.

[0054] When button 400 is assembled onto housing 100, the top of wall 310 of locking member 300 is fitted into cavity 411 of cap 410. Pressing part 420 inside cap 410 extends into the annular wall 310 at the top of locking member 300 and is coaxially matched with first switch 200. Limiting member 430 abuts against the top of wall 310 of locking member 300 to lock button 400 pressing function, or is embedded in opening 311 of locking member 300 to unlock button 400 pressing function. Specifically, when the locking member 300 is in the locked position, the pressing part 420 of the button 400 extends into the annular wall 310 at the top of the locking member 300, and the limiting member 430 around the pressing part 420 abuts against the top of the wall 310 of the locking member 300. The locking member 300 prevents the button 400 from pressing the first switch 200 by abutting against the limiting member 430. It should be noted that at this time, the pressing part 420 can be located above the top of the first switch 200 or in contact with the top of the first switch 200. When the pressing part 420 is in contact with the first switch 200, no pressure is applied. When the locking member 300 rotates from the locked position to the unlocked position, the limiting member 430 is aligned with the opening 311. The limiting member 430 can be embedded in the opening 311. The opening 311 can avoid the path of the limiting member 430 moving axially, thereby guiding the button 400 to move axially and press the first switch 200.

[0055] Furthermore, in some embodiments, a third elastic element is provided between the button 400 and the first switch 200. The third elastic element drives the button 400 to reset after the first switch 200 is pressed through elastic deformation. In one example, the third elastic element is a compression spring, which is coaxially mounted on the outside of the first switch 200 and the pressing part 420. One end of the third elastic element abuts against the button 400, and the other end abuts against the base of the first switch 200.

[0056] Please see Figure 10 and Figure 11In some embodiments, the button 400 is further provided with a locking portion 440, which is disposed within the cavity 411 of the cap 410 and surrounds the outer side of the pressing portion 420. A limiting member 430 is disposed between the locking portion 440 and the pressing portion 420. For example, the limiting member 430 may be configured as a reinforcing rib between the locking portion 440 and the pressing portion 420. When the button 400 is movably mounted onto the housing 100, the pressing portion 420 on the button 400 extends axially into the annular wall 310 at the top of the locking member 300, and the locking portion 440 on the button 400 surrounds the periphery of the top of the wall 310 of the locking member 300, thereby causing the top of the wall 310 of the locking member 300 to be locked between the locking portion 440 and the pressing portion 420. Button 400 is fixed to the top of locking member 300 by means of a snap-fit ​​relationship with locking member 300, and moves along the axial direction under the snap-fit ​​limit.

[0057] Please see Figure 1 and Figure 3 In some embodiments, the button 400 and trigger 500 are respectively disposed on both sides of the housing 100. For example, the button 400 and trigger 500 are respectively disposed on both sides of the housing 100 along the axial direction of the first switch 200, with the button 400 located at the top of the first switch 200 and the trigger 500 located at the bottom of the first switch 200. The button 400 is pressed and moved on the housing 100 in a first direction, and the trigger 500 is pressed and moved on the housing 100 in a second direction, the first direction being opposite to the second direction. The user can press the trigger 500 and the button 400 in opposite directions, thereby unlocking and pressing the first switch 200 with one hand, thus freeing the user's other hand for other operations, effectively improving the user experience.

[0058] Please see Figure 1 , Figure 13 and Figure 14 On the other hand, this utility model also provides a power tool 1, which includes a support frame 20, a working part 30, a working section, a battery pack, and a switch assembly 10. It should be noted that the type of power tool 1 involved in this utility model is not limited, and may include, but is not limited to, ice drills, hole drills, angle grinders, chainsaws, lawnmowers, etc.

[0059] Please see Figure 13 and Figure 14The support frame 20 includes a mounting part 201 and a handle 202. The handle 202 is disposed around the mounting part 201 and is fixedly connected to the mounting part 201 via a connecting arm 203. For example, the handle 202 may be symmetrically disposed on both sides of the mounting part 201 and fixedly connected to the mounting part 201 via connecting arms 203 respectively. The working part 30 is mounted and fixedly fixed on the mounting part 201. The working part 30 has a housing, within which a motor 301 is encapsulated. The motor 301 has an output shaft 302 that extends to the outside of the housing. The working part is fixedly mounted on the output shaft 302, thereby enabling the motor 301 to drive the working part to rotate via the output shaft 302. The type of the working part can be adapted to the type of power tool 1. For example, when the power tool 1 is a drill, the working part is a drill bit. In addition, the working part 30 is also provided with an interface structure 303, which is located on the side of the housing 100 away from the user. A battery pack is inserted into the interface structure 303 to supply power to the motor 301.

[0060] Please see Figure 1 and Figure 13 The switch assembly 10 is mounted on the handle 202 and is used to control the operation of the working unit 30. The switch assembly 10 includes a housing 100, a first switch 200, a locking member 300, a button 400, and a trigger 500.

[0061] The housing 100 has a receiving cavity for assembling components such as the first switch 200, locking member 300, button 400, and trigger 500. The housing 100 can be a switch box that can be detachably mounted on the handle 202; the housing 100 can also be a semi-open shell that connects and mates with the handle 202 shell to form a receiving cavity; in addition, the handle 202 shell can also be used directly as the housing 100, so that the components of the switch assembly 10 are assembled inside the handle 202 shell.

[0062] The first switch 200 is fixed within a receiving cavity. For example, a first limiting groove 130 is provided in the housing 100, and the first switch 200 is inserted and fixed within the first limiting groove 130. A locking member 300 is fitted onto the first switch 200. The locking member 300 includes a wall 310 surrounding the first switch 200, and the locking member 300 is rotatable around the first switch 200. The wall 310 of the locking member 300 has an opening 311. One side of the opening 311 penetrates the side of the locking member 300 opposite to the first switch 200, and the other side of the opening 311 extends axially towards the bottom of the locking member 300. A button 400 is movably mounted on the housing 100. The housing 100 has a first window 110, and the button 400 passes through the first window 110 to achieve a sliding connection on the housing 100. The button 400 is located at the top of the first switch 200 and the locking member 300. Button 400 triggers the first switch 200 upon pressing. The triggering of the first switch 200 can be achieved by pressing the button to open or close it, or by adjusting the depth of button press to adjust the opening degree of the first switch 200. Trigger 500 is rotatably mounted on housing 100, for example, by a hinged connection. Part of trigger 500 is located outside the receiving cavity for user pressing, while the portion of trigger 500 inside the receiving cavity abuts against the circumferential outer edge of locking member 300. When trigger 500 rotates relative to housing 100, the abutment relationship pushes locking member 300 to rotate around the first switch 200.

[0063] Please see Figures 3 to 8 The locking member 300 responds to user operation by abutting against the trigger 500, and rotates the locking and unlocking button 400 to press the first switch 200 under the drive of the active trigger 500. When the locking member 300 is in the locked position, the top of the wall 310 of the locking member 300 abuts against the button 400 to prevent the button 400 from pressing the first switch 200, thereby locking the first switch 200. When the user presses the trigger 500, it rotates relative to the housing 100. The rotating trigger 500 pushes the locking member 300 to rotate around the first switch 200. When the locking member 300 rotates to the unlocked position, the opening 311 at the top of the locking member 300 can avoid the displacement path of the button 400 pressing the first switch 200, thereby unlocking the first switch 200. At this time, the button 400 can press along the opening 311 to trigger the first switch 200.

[0064] Please see Figure 1 , Figure 2 and Figure 13In some embodiments, the first switch 200 is a speed control switch. The first switch 200 is located in the circuit between the motor 301 and the battery pack. The first switch 200 is used both to regulate the power supply between the motor 301 and the battery pack, and to regulate the speed of the output shaft 302 of the motor 301. Specifically, before the button 400 presses, the first switch 200 disconnects the circuit between the motor 301 and the battery pack; after the button 400 presses, the first switch 200 connects the circuit between the motor 301 and the battery pack, and regulates the speed of the output shaft 302 of the motor 301 by responding to the pressing of the button 400. The depth of the first switch 200 pressed by the button 400 is positively correlated with the increase or decrease in the speed of the output shaft 302.

[0065] Please see Figure 1 , Figure 2 and Figure 13 In some embodiments, the switch assembly 10 further includes a second switch 700, which is fixed to the housing 100. The housing 100 has a second window 120, and the second switch 700 is inserted and fixed in the second window 120. The second switch 700 is electrically connected to the motor 301 and is used to control the output shaft 302 of the motor 301 to rotate forward or in reverse.

[0066] In summary, the switch assembly and power tool of this invention utilize the coaxial assembly of the first switch, locking element, and button to achieve limiting cooperation among the three components. Furthermore, the external operation of rotating the locking element to lock or unlock the first switch is achieved solely through the contact between the trigger and the locking element, triggering the button to press the first switch. This switch assembly effectively reduces the number of components required to perform the function, simplifies the cooperation structure between components, and ensures balanced force distribution during component movement, resulting in a compact and highly reliable switch assembly.

[0067] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A switching assembly, characterized in that, include: case; The first switch is located inside the housing; A button, mounted on the housing, triggers the first switch in response to a pressing operation; A locking element is rotatably mounted on the first switch, and the locking element has an opening. A trigger is rotatably mounted on the housing and abuts against the locking member to move the locking member between a locked position and an unlocked position; When the locking member is in the locked position, it prevents the button from pressing the first switch; when the locking member is rotated to the unlocked position, the opening avoids the button and allows the button to press the first switch.

2. The switching assembly according to claim 1, characterized in that, The locking member has a protrusion that abuts against the trigger.

3. The switching assembly according to claim 2, characterized in that, A first elastic element is provided between the protrusion and the housing, and the first elastic element drives the locking element to return to the locked position.

4. The switching assembly according to claim 3, characterized in that, The first elastic element is a torsion spring, which is fixed in the housing. One end of the first elastic element is connected to the protrusion, and the other end of the first elastic element is fixed to the housing.

5. The switching assembly according to claim 2, characterized in that, The trigger is provided with an abutment portion, which is located on the side of the trigger facing the inside of the housing, and the abutment portion abuts against the protrusion.

6. The switching assembly according to claim 1, characterized in that, The button is provided with a pressing part and a limiting member. The pressing part can extend into the locking member and matches the first switch. When the locking member is in the locked position, the top of the locking member abuts against the limiting member to prevent the pressing part from pressing the first switch. When the locking member is rotated to the unlocked position, the opening avoids the path of the limiting member moving axially.

7. The switching assembly according to claim 6, characterized in that, The button is also provided with a locking part, which surrounds the pressing part. The limiting member is disposed between the locking part and the pressing part, and the top of the wall of the locking member is locked between the locking part and the pressing part.

8. The switching assembly according to claim 7, characterized in that, The limiting member is a reinforcing rib between the clamping part and the pressing part.

9. The switching assembly according to claim 1, characterized in that, A second elastic element is provided between the trigger and the housing. One end of the second elastic element abuts against the side of the trigger facing into the housing, and the other end of the second elastic element abuts against the inner wall of the housing.

10. The switching assembly according to claim 1, characterized in that, The button is activated by pressing in a first direction, and the trigger is activated by pressing in a second direction, wherein the first direction is opposite to the second direction.

11. A power tool, characterized in that, include: A support frame, which includes a mounting part and a handle; The motor is fixedly mounted on the mounting part; The working part is fixedly mounted on the output shaft of the motor; as well as A switch assembly, disposed on the handle, includes: case; The first switch is located inside the housing; A button, mounted on the housing, triggers the first switch in response to a pressing operation; A locking element is rotatably mounted on the first switch, and the locking element has an opening. A trigger is rotatably mounted on the housing and abuts against the locking member to move the locking member between a locked position and an unlocked position; When the locking member is in the locked position, it prevents the button from pressing the first switch; when the locking member is rotated to the unlocked position, the opening avoids the button and allows the button to press the first switch.

12. The power tool according to claim 11, characterized in that, The first switch is a speed control switch, and the button presses the first switch to adjust the output shaft speed of the motor.

13. The power tool according to claim 11, characterized in that, The switching assembly also includes a second switch, which is electrically connected to the motor and is used to control the output shaft to rotate forward or backward.

Images