A trigger switch

Abstract

This invention relates to the field of electrical switch technology, specifically disclosing a trigger switch. The trigger switch includes a lower cover, a locking member, and a locking assembly. The lower cover has a locking hole and a notch. During assembly, the locking rod is first inserted into a guide cylinder. By rotating the locking cap to a first position, the locking protrusion on the locking rod aligns with the notch on the lower cover. Then, the locking cap is pressed along the axial direction of the guide cylinder, causing one end of the locking rod to pass through the locking hole. At this point, the locking protrusion is located on the other side of the lower cover. The locking cap is then rotated to a second position, where the locking protrusion aligns with the lower cover, preventing the locking rod from axially disengaging from the locking hole. This trigger switch solves the problem that when the locking rod is installed in the lower cover using an interference fit, a damaged lower cover or locking rod is easily impacted and broken during unlocking of the locking mechanism, causing the lower cover to fail to restrain the locking rod, resulting in the locking rod detaching from the lower cover and the locking mechanism failing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric appliance switch, in particular to a trigger switch. BACKGROUND

[0002] On some electric tools, it is sometimes required to be in working position for a long time. If a locking mechanism is not designed, the operator needs to press the pressing part of the trigger switch for a long time, so that the trigger switch is always kept in the working position. Therefore, it is necessary to increase the locking function to release part of the work of the operator while the trigger switch is in the working state for a long time. The locking function is generally designed on the trigger switch. The trigger switch generally consists of a locking rod, a spring, a lower cover and a trigger. The existing locking mechanism generally inserts the locking rod into the lower cover with interference, so as to prevent the locking rod from coming out of the lower cover. When interference assembly is carried out, the locking rod or the lower cover will be damaged. When the locking mechanism is unlocked, the locking rod will hit the lower cover under the action of the locking spring. The damaged lower cover or locking rod is easy to break under the impact, so that the lower cover cannot limit the locking rod, and the locking rod is separated from the lower cover, and the locking mechanism is out of order. SUMMARY

[0003] The present application aims to provide a trigger switch to solve the problem that the damaged lower cover or locking rod is easy to break under the impact when the locking rod is assembled into the lower cover by interference in the related art, the lower cover cannot limit the locking rod, the locking rod is separated from the lower cover, and the locking mechanism is out of order.

[0004] The present application provides a trigger switch, which comprises:

[0005] A lower cover is provided with a clamping hole and a gap, and the gap is communicated with the clamping hole;

[0006] A locking member is slidingly arranged on one side of the lower cover, and the locking member slides relative to the lower cover and has a working position and a resting position;

[0007] A locking assembly comprises a guide cylinder, a locking rod and a locking cap. The guide cylinder is arranged on the other side of the lower cover, and the guide hole of the guide cylinder is opposite to the clamping hole and the gap. One end of the locking rod is provided with a clamping protrusion along the radial direction of the locking rod. The other end of the locking rod is fixedly provided with the locking cap. The locking cap rotates around the guide cylinder and changes from a first position to a second position. The first position is that the clamping protrusion is opposite to the gap. The second position is that the clamping protrusion is located on the other side of the lower cover and is opposite to the lower cover. When the locking cap and the guide cylinder are in the second position, the locking member is in the working position, and the locking rod and the locking member have a first state of mutual locking and a second state of mutual separation. When the locking member is in the resting position, the locking rod and the locking member are in the second state of mutual separation.

[0008] As a preferred technical solution for the trigger switch, the peripheral wall of the guide cylinder is provided with a first groove and a second groove along its axial direction, and the first groove and the second groove are adjacent to each other.

[0009] The locking cap is provided with a limiting protrusion. In the first position, the limiting protrusion is located in the first slide groove and slides in cooperation with the first slide groove. In the second position, the limiting protrusion is located in the second slide groove and slides along the second slide groove. The limiting protrusion can slide from the first slide groove to the second slide groove.

[0010] As a preferred technical solution for the trigger switch, the peripheral wall of the locking cap is provided with a first slide groove and a second slide groove along its axial direction, and the first slide groove and the second slide groove are adjacent to each other.

[0011] The guide cylinder is provided with a limiting protrusion. In the first position, the limiting protrusion is located in the first slide groove and slides in cooperation with the first slide groove. In the second position, the limiting protrusion is located in the second slide groove and slides along the second slide groove. The limiting protrusion can slide from the first slide groove to the second slide groove.

[0012] As a preferred technical solution for the trigger switch, the first slide groove extends from the side away from the second slide groove to the side closer to the second slide groove, the groove depth of the first slide groove gradually decreases along the radial direction of the guide cylinder, and the side of the first slide groove closer to the second slide groove is flush with the peripheral wall of the second slide groove.

[0013] As a preferred technical solution for the trigger switch, the first slide groove and the second slide groove form a limiting slide groove, and at least two limiting slide grooves are provided, and at least two limiting protrusions are provided, with at least two limiting protrusions and at least two limiting slide grooves corresponding one-to-one.

[0014] As a preferred technical solution for the trigger switch, the first elastic element is a helical spring, which is sleeved on the locking rod.

[0015] As a preferred technical solution for the trigger switch, it further includes a trigger, the trigger comprising a pressing part and a locking member, the locking member being a locking plate fixed to the pressing part. The catch is opposite the locking element, The locking member is provided with a locking hole, and when the pressing part is in the working position, the locking hole is opposite to the locking hole;

[0016] The first state is that the locking rod extends into the lock hole and engages with the locking element.

[0017] As a preferred technical solution for the trigger switch, the trigger further includes a second elastic element, which drives the pressing part to switch from the working position to the resting position;

[0018] In the direction of switching from the rest position to the working position, one end of the locking lever is provided with a locking protrusion.

[0019] As a preferred technical solution for the trigger switch, one side of the lower cover and the locking member are provided with a slide rail and the other side is provided with a slide groove, and the slide rail and the slide groove are slidably engaged.

[0020] As a preferred technical solution for the trigger switch, at least two protrusions and at least two notches are provided.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention provides a trigger switch, which includes a lower cover, a locking member, and a locking assembly. The lower cover has a locking hole and a notch, with the notch communicating with the locking hole. The locking member is slidably disposed on one side of the lower cover, and has a working position and a resting position relative to the lower cover. The locking assembly includes a guide cylinder, a locking rod, and a locking cap. The guide cylinder is disposed on the other side of the lower cover, and the guide hole of the guide cylinder is simultaneously opposite to the locking hole and the notch. One end of the locking rod has a locking protrusion along the radial direction of the locking rod, and the other end of the locking rod is fixedly provided with a locking cap. The locking cap rotates around the guide cylinder and rotates from a first position to a second position. In the first position, the locking protrusion is opposite to the notch, and in the second position, the locking protrusion is located on the other side of the lower cover and opposite to the lower cover. When the locking member is in the second position and the locking rod is in the working position, the locking rod and the locking member have a first state of mutual locking and a second state of mutual separation. When the locking member is in the resting position, the locking rod and the locking member are in the second state of mutual separation. During assembly, the locking lever is first inserted into the guide cylinder. The locking cap is rotated to the first position, aligning the locking protrusion on the locking lever with the notch on the lower cover. The locking cap is then pressed along the axis of the guide cylinder, causing one end of the locking lever to pass through the locking hole. At this point, the locking protrusion is on the other side of the lower cover. The locking cap is then rotated to the second position, where the locking protrusion is aligned with the lower cover, preventing the locking lever from axially disengaging from the locking hole. When the user actuates the locking mechanism and positions it in the working position, the locking lever and locking mechanism switch from a separated second state to a locked first state, thus holding the locking mechanism in the working position. To switch the locking mechanism from the working position to the resting position, simply switch the locking lever and locking mechanism to the separated first state. This solves the problem that when the locking lever is installed in the lower cover using an interference fit, a damaged lower cover or locking lever is prone to breakage under impact, causing the lower cover to fail to restrain the locking lever, resulting in the locking lever detaching from the lower cover and the locking mechanism failing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the trigger switch in an embodiment of the present invention;

[0024] Figure 2 This is an exploded view of the trigger switch in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the trigger switch (excluding the locking lever, locking cap, and first elastic element) in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the locking cap in an embodiment of the present invention.

[0027] In the picture:

[0028] 1. Bottom cover; 11. Clip hole; 12. Notch;

[0029] 2. Trigger; 21. Pressing part; 22. Locking element; 221. Locking hole;

[0030] 31. Guide cylinder; 311. First slide groove; 312. Second slide groove; 32. Locking rod; 321. Snap protrusion; 322. Locking protrusion; 33. Locking cap; 331. Limiting protrusion; 34. First elastic element. Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] like Figures 1 to 4As shown, this embodiment provides a trigger switch, which includes a lower cover 1, a trigger 2, and a locking assembly. The lower cover 1 is provided with a locking hole 11 and a notch 12, with the notch 12 communicating with the locking hole 11. The trigger 2 includes a pressing part 21 and a locking member 22. The locking member 22 is slidably disposed on one side of the lower cover 1. The pressing part 21 switches between a working position and a rest position and drives the locking member 22 to slide relative to the lower cover 1. The locking assembly includes a guide cylinder 31, a locking rod 32, and a locking cap 33. The guide cylinder 31 is disposed on the other side of the lower cover 1, and the guide hole of the guide cylinder 31 communicates with the locking hole 11 and... With notch 12 facing each other, one end of locking rod 32 has a latching protrusion 321 arranged radially along locking rod 32, and the other end of locking rod 32 is fixed with locking cap 33. Locking cap 33 rotates around guide cylinder 31 and rotates from a first position to a second position. In the first position, latching protrusion 321 is facing notch 12, and in the second position, latching protrusion 321 is located on the other side of lower cover 1 and is facing lower cover 1. When locking cap 33 and guide cylinder 31 are in the second position and pressing part 21 is in the working position, locking rod 32 and locking member 22 have a first state of mutual locking and a second state of mutual separation. When assembling this trigger switch, firstly, locking rod 32 is inserted into guide cylinder 31. By rotating locking cap 33 to the first position, latching protrusion 321 on locking rod 32 is aligned with notch 12 on lower cover 1. Then, locking cap 33 is pressed along the axial direction of guide cylinder 31, so that one end of locking rod 32 passes through latching hole 11. At this time, latching protrusion 321 is located on the other side of lower cover 1. Then, locking cap 33 is rotated. This positions the locking cap 33 in the second position, where the latching protrusion 321 is opposite to the lower cover 1, preventing the locking rod 32 from axially disengaging from the latching hole 11. When the user presses the pressing part 21 and positions it in the working position, the locking rod 32 and the locking member 22 switch from a separated second state to a mutually locked first state. The pressed part 21 remains in the working position. When it is necessary to switch the pressing part 21 from the working position to the resting position, simply switch the locking rod 32 and the locking member 22 to the separated first state to switch the pressing part 21 from the working position to the resting position. This solves the problem that when the locking rod 32 is inserted into the lower cover 1 via an interference fit, a damaged lower cover 1 or locking rod 32 is prone to breakage under impact, the lower cover 1 cannot restrain the locking rod 32, the locking rod 32 disengages from the lower cover 1, and the locking mechanism fails.

[0036] Specifically, the locking member 22 of the trigger 2 can be a locking plate separately fixed to the pressing part 21. In other embodiments, the locking member 22 can also be a trigger shaft fixed to the pressing part 21.

[0037] Optionally, the locking cap 33 and the locking rod 31 are integrally formed. In other embodiments, the locking cap 33 and the locking rod 31 can also be fixed to each other by means of interlocking or screwing.

[0038] Optionally, the outer peripheral wall of the guide cylinder 31 is provided with a first sliding groove 311 and a second sliding groove 312 along its axial direction, and the first sliding groove 311 and the second sliding groove 312 are adjacent to each other; the locking cap 33 is sleeved on the guide cylinder 31, and the surface of the locking cap 33 opposite to the guide cylinder 31 is provided with a limiting protrusion 331. In the first position, the limiting protrusion 331 is located in the first sliding groove 311 and slides with the first sliding groove 311; in the second position, the limiting protrusion 331 is located in the second sliding groove 312 and slides along the second sliding groove 312. The limiting protrusion 331 can slide from the first sliding groove 311 to the second sliding groove 312. In this embodiment, the length of the first sliding groove 311 along the axial direction of the guide cylinder 31 is not less than the sum of the thicknesses of the lower cover 1 and the locking protrusion 321. This setting ensures that when the limiting protrusion 331 is in the first sliding groove 311, the locking protrusion 321 can be located on the side of the lower cover 1 opposite to the locking member 22. The length of the first groove 311 along the direction of the guide cylinder 31 is equal to the length of the axis of the guide cylinder 31.

[0039] In other embodiments, the inner peripheral wall of the guide cylinder 31 is provided with a first sliding groove 311 and a second sliding groove 312 along its axial direction, and the first sliding groove 311 and the second sliding groove 312 are adjacent to each other; the locking cap 33 passes through the guide cylinder 31, and the surface of the locking cap 33 opposite to the guide cylinder 31 is provided with a limiting protrusion 331. In the first position, the limiting protrusion 331 is located in the first sliding groove 311 and slides with the first sliding groove 311; in the second position, the limiting protrusion 331 is located in the second sliding groove 312 and slides along the second sliding groove 312. The limiting protrusion 331 can slide from the first sliding groove 311 to the second sliding groove 312. In this embodiment, the length of the first sliding groove 311 along the axial direction of the guide cylinder 31 is not less than the sum of the thicknesses of the lower cover 1 and the locking protrusion 321. This setting ensures that when the limiting protrusion 331 is in the first sliding groove 311, the locking protrusion 321 can be located on the side of the lower cover 1 opposite to the locking member 22. The length of the first groove 311 along the direction of the guide cylinder 31 is equal to the length of the axis of the guide cylinder 31.

[0040] In other embodiments, the inner peripheral wall of the locking cap 33 is provided with a first groove 311 and a second groove 312 along its axial direction, and the first groove 311 and the second groove 312 are adjacent to each other; the locking cap 33 is sleeved on the guide cylinder 31, and the surface of the guide cylinder 31 opposite to the locking cap 33 is provided with a limiting protrusion 331. In the first position, the limiting protrusion 331 is located in the first groove 311 and slides with the first groove 311. In the second position, the limiting protrusion 331 is located in the second groove 312 and slides along the second groove 312. The limiting protrusion 331 can slide from the first groove 311 to the second groove 312.

[0041] In other embodiments, the outer peripheral wall of the locking cap 33 is provided with a first groove 311 and a second groove 312 along its axial direction, and the first groove 311 and the second groove 312 are adjacent to each other; the locking cap 33 passes through the guide cylinder 31, and the surface of the guide cylinder 31 opposite to the locking cap 33 is provided with a limiting protrusion 331. In the first position, the limiting protrusion 331 is located in the first groove 311 and slides with the first groove 311. In the second position, the limiting protrusion 331 is located in the second groove 312 and slides along the second groove 312. The limiting protrusion 331 can slide from the first groove 311 to the second groove 312.

[0042] Regarding how the limiting protrusion 331 slides from the first slide groove 311 to the second slide groove 312: Optionally, the first slide groove 311 extends from the side away from the second slide groove 312 to the side closer to the second slide groove 312, with the groove depth of the first slide groove 311 gradually decreasing along the radial direction of the guide cylinder 31. The side of the first slide groove 311 closer to the second slide groove 312 is flush with the peripheral wall of the second slide groove 312. In this embodiment, as the locking cap 33 is rotated, the limiting protrusion 331 moves from the first slide groove 311 to the second slide groove 312, causing the limiting protrusion 331 to undergo elastic deformation. When the limiting protrusion 331 is located in the second slide groove 312, the limiting protrusion 331 returns to its original shape, preventing the limiting protrusion 331 from sliding from the second slide groove 312 into the first slide groove 311, thereby preventing the locking rod 32 from dislodging from the locking hole 11.

[0043] Optionally, the first slide groove 311 and the second slide groove 312 form a limiting slide groove, and at least two limiting slide grooves and at least two limiting protrusions 331 are provided, with each of the at least two limiting protrusions 331 corresponding to one of the at least two limiting slide grooves. In this embodiment, the at least two limiting protrusions 331 and the at least two limiting slide grooves are equally spaced. This arrangement can improve the stability of the locking rod 32 sliding within the locking hole 11 and prevent the locking rod 32 from deviating from the axis of the locking hole 11.

[0044] Optionally, the locking assembly further includes a first elastic element 34, one end of which abuts against the lower cover 1, and the other end of which abuts against the locking cap 33. In this embodiment, the first elastic element 34 drives the locking lever 32 to move away from the lower cover 1, and after the locking lever 32 and the locking element 22 are unlocked, the locking lever 32 and the locking element 22 switch from a first state to a second state under the drive of the first elastic element 34.

[0045] Specifically, the first elastic element 34 is a helical spring, which is sleeved on the locking rod 32. In this embodiment, one end of the helical spring abuts against the lower cover 1, and the other end abuts against the locking cap 33. In other embodiments, the first elastic element 34 may also be an elastic rubber ring, which is sleeved on the locking rod 32.

[0046] Optionally, the locking member 22 is a locking plate fixed to the pressing part 21, with the locking hole 11 opposite to the locking member 22. The locking member 22 is provided with a locking hole 221. When the pressing part 21 is in the working position, the locking hole 221 is opposite to the locking hole 11. The first state is that the locking rod 32 extends into the locking hole 221 and engages with the locking member 22. In this embodiment, after the locking rod 32 extends into the locking hole 221, it engages with the locking member 22, preventing the locking rod 32 from disengaging from the locking hole 221 under the drive of the first elastic member 34. This can limit the radial movement of the locking member 22 along the locking rod 32, thereby fixing the pressing part 21 in the working position.

[0047] Optionally, the trigger 2 further includes a second elastic element, which drives the pressing part 21 to switch from the working position to the rest position; along the direction of switching from the rest position to the working position, one end of the locking rod 32 is provided with a locking protrusion 322. In this embodiment, after the locking rod 32 extends into the lock hole 221, under the action of the second elastic element, the locking protrusion 322 engages with the locking member 22, thereby placing the locking rod 32 and the locking member 22 in a first state. When it is necessary to switch the locking rod 32 and the locking member 22 from the first state to the second state, the pressing part 21 is pressed along the direction from the rest position to the working position, causing the locking protrusion 322 and the locking member 22 to separate, and then the locking rod 32 disengages from the lock hole 221 under the action of the first elastic element 34.

[0048] Optionally, one side of the lower cover 1 and the locking member 22 are provided with a slide rail, and the other side is provided with a slide groove, with the slide rail and the slide groove slidingly engaged. In this embodiment, the locking member 22 is provided with a slide rail, and the lower cover 1 is provided with a slide groove.

[0049] Optionally, at least two locking protrusions 321 and at least two notches 12 are provided. In this embodiment, at least two locking protrusions 321 are circumferentially spaced around the locking rod 32, and at least two notches 12 are spaced along the axis of the locking hole 11 on the lower cover 1. This arrangement prevents the locking rod 32 from deviating relative to the axis of the guide cylinder 31.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A trigger switch, characterized in that, include: The lower cover (1) is provided with a card hole (11) and a notch (12), and the notch (12) is connected to the card hole (11); Locking member (22), the locking member (22) is slidably disposed on one side of the lower cover (1), the locking member (22) slides relative to the lower cover (1) and has a working position and a resting position; The locking assembly includes a guide cylinder (31), a locking rod (32), and a locking cap (33). The guide cylinder (31) is disposed on the other side of the lower cover (1), and the guide hole of the guide cylinder (31) is simultaneously opposite to the locking hole (11) and the notch (12). One end of the locking rod (32) is provided with a locking protrusion (321) along the radial direction of the locking rod (32), and the other end of the locking rod (32) is fixed with the locking cap (33). The locking cap (33) rotates around the guide cylinder (31) and rotates from a first position to a second position. The first position is the... The card protrusion (321) is opposite to the notch (12). The second position is when the card protrusion (321) is located on the other side of the lower cover (1) and opposite to the lower cover (1). The locking cap (33) and the guide cylinder (31) are located in the second position. When the locking member (22) is located in the working position, the locking rod (32) and the locking member (22) have a first state of mutual locking and a second state of mutual separation. When the locking member (22) is located in the rest position, the locking rod (32) and the locking member (22) are in the second state of mutual separation.

2. The trigger switch according to claim 1, characterized in that, The guide cylinder (31) has a first groove (311) and a second groove (312) respectively provided on its peripheral wall along its axial direction. The first groove (311) and the second groove (312) are adjacent to each other. The locking cap (33) is provided with a limiting protrusion (331). In the first position, the limiting protrusion (331) is located in the first slide groove (311) and slides in cooperation with the first slide groove (311). In the second position, the limiting protrusion (331) is located in the second slide groove (312) and slides in cooperation with the second slide groove (312). The limiting protrusion (331) can slide from the first slide groove (311) to the second slide groove (312).

3. The trigger switch according to claim 1, characterized in that, The peripheral wall of the locking cap (33) is provided with a first sliding groove (311) and a second sliding groove (312) along its axial direction, and the first sliding groove (311) and the second sliding groove (312) are adjacent to each other. The guide cylinder is provided with a limiting protrusion (331). In the first position, the limiting protrusion (331) is located in the first slide groove (311) and slides in cooperation with the first slide groove (311). In the second position, the limiting protrusion (331) is located in the second slide groove (312) and slides in cooperation with the second slide groove (312). The limiting protrusion (331) can slide from the first slide groove (311) to the second slide groove (312).

4. The trigger switch according to claim 2 or 3, characterized in that, The first groove (311) extends from the side away from the second groove (312) to the side closer to the second groove (312). The groove depth of the first groove (311) gradually decreases along the radial direction of the guide cylinder (31). The side of the first groove (311) closer to the second groove (312) is flush with the peripheral wall of the second groove (312).

5. The trigger switch according to claim 2 or 3, characterized in that, The first slide groove (311) and the second slide groove (312) form a limiting slide groove. At least two limiting slide grooves are provided, and at least two limiting protrusions (331) are provided. At least two limiting protrusions (331) and at least two limiting slide grooves correspond one-to-one.

6. The trigger switch according to claim 1, characterized in that, The locking assembly further includes a first elastic element (34), one end of which abuts against the lower cover (1) and the other end of which abuts against the locking cap (33).

7. The trigger switch according to claim 1, characterized in that, It also includes a trigger (2), which includes a pressing part (21) and a locking member (22). The locking member (22) is a locking plate fixed to the pressing part (21). The locking hole (11) is opposite to the locking member (22). The locking member (22) is provided with a locking hole (221). When the pressing part (21) is in the working position, the locking hole (221) is opposite to the locking hole (11). The first state is that the locking rod (32) extends into the lock hole (221) and engages with the locking member (22).

8. The trigger switch according to claim 7, characterized in that, The trigger (2) further includes a second elastic element, which drives the pressing part (21) to switch from the working position to the rest position; In the direction of switching from the rest position to the working position, one end of the locking lever (32) is provided with a locking protrusion (322).

9. The trigger switch according to claim 1, characterized in that, One side of the lower cover (1) and the locking member (22) are provided with a slide rail and the other side is provided with a slide groove, and the slide rail and the slide groove are slidably engaged.

10. The trigger switch according to claim 1, characterized in that, At least two of the card protrusions (321) are provided, and at least two of the notches (12) are provided.

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