Brushless signal trigger switch with back locking and self-locking functions

Abstract

The utility model provides a brushless signal trigger switch with back locking and self-locking functions, which comprises a base body, an upper cover, a push shaft and a reset spring arranged on the push shaft, one end of the push shaft extends out of a box body formed by the base body and the upper cover, and the other end of the push shaft is arranged in the box body; a circuit board assembly is arranged on one side of the push shaft, an on-off reed and a speed regulation reed are arranged on the side, close to the circuit board assembly, of the push shaft, and the on-off reed and the speed regulation reed can slide on the circuit board assembly along with movement of the push shaft. A trigger is arranged at the end, extending out of the box body, of the push shaft, a trigger cavity is formed in the side, close to the push shaft, of the trigger, a rib position is arranged in the trigger cavity, a locking structure is arranged on the base body, and the back locking and self-locking functions of the switch are achieved through cooperation of the locking structure and the rib position. The switch disclosed by the utility model can be used for counter locking the rechargeable electric tool with a self-locking function requirement.

Description

Technical Field

[0001] The present disclosure relates to a trigger switch, and in particular to a brushless signal trigger switch with anti-locking and self-locking functions. Background Art

[0002] At present, DC power tools on the market generally use a DC signal switch plus a control board component to achieve various control and protection functions. This solution has the following defects:

[0003] 1. Common DC signal switches usually have an anti-locking function by having the lever press against the trigger. The automatic reset function cannot be achieved. The lever cannot reset automatically. If it is on the left or right side, there is no anti-locking function. When used in special power tools with safety requirements, it is easy to start the power tool due to direct passive pressure, which poses a major hidden danger to personal safety and does not meet the requirements of national safety standards.

[0004] 2. Commonly used DC signal switches generally achieve the anti-locking function by pressing the lever against the ribs of the trigger, and cannot achieve the self-locking function. For special power tools such as blenders, which are used for a long time and have large vibrations, there is no self-locking function, and the practical experience is poor.

[0005] Therefore, it is imperative to design a brushless signal trigger switch with anti-locking and self-locking functions. Utility Model Content

[0006] The brushless signal trigger switch with anti-locking and self-locking functions provided by the present disclosure can be used for anti-locking rechargeable electric tools with self-locking function requirements.

[0007] According to a first aspect of the embodiment of the present disclosure, a brushless signal trigger switch with anti-locking and self-locking functions is provided, the switch comprising a base body, an upper cover, a push shaft, and a return spring arranged on the push shaft, one end of the push shaft extends out of a box body formed by the base body and the upper cover, and the other end is arranged in the box body;

[0008] A circuit board assembly is arranged on one side of the push shaft, and a switching spring and a speed regulating spring are arranged on one side of the push shaft close to the circuit board assembly, and both the switching spring and the speed regulating spring can slide on the circuit board assembly as the push shaft moves;

[0009] A trigger is provided at one end of the push shaft extending out of the box body, a trigger cavity is provided on the side of the trigger close to the push shaft, a rib is provided in the trigger cavity, and a locking structure is provided on the base body, and the anti-locking and self-locking functions of the switch are realized through the cooperation of the locking structure and the rib.

[0010] In one embodiment, the locking structure includes a locking block, a locking rod and a locking spring;

[0011] The locking block is provided with a locking button and a top block, a locking shaft is provided inside the locking button, the locking spring is sleeved on the locking shaft, a locking hole matched with the locking shaft is provided on the locking rod, and the top block matches with the rib position.

[0012] In one embodiment, a lock button mounting platform is provided on the base body, a lock button through hole is provided on the lock button mounting platform, the lock shaft passes through the lock button through hole and then matches with the lock hole, and the lock button is sleeved on the lock button mounting platform;

[0013] The lock rod is provided with a lock rod connecting hole, and the lock rod is sleeved on the push shaft through the lock rod connecting hole.

[0014] In one embodiment, a base body connecting strip is provided on the base body, an upper cover connecting strip is provided on the upper cover, a first trigger connecting groove cooperating with the base body connecting strip is provided on the inner wall on one side of the trigger cavity, and a second trigger connecting groove cooperating with the upper cover connecting strip is provided on the inner wall on the other side of the trigger cavity.

[0015] In one embodiment, the longitudinal sections of the base body connecting strip, the upper cover connecting strip, the first trigger connecting groove, and the second trigger connecting groove are all configured as T-shaped structures.

[0016] In one embodiment, the base body is provided with a semicircular stepped hole, and the upper cover is provided with a semicircular stepped hole. The semicircular stepped hole of the base body and the semicircular stepped hole of the upper cover constitute a push shaft stepped hole, and a stepped sealing ring is provided in the push shaft stepped hole. The push shaft extends out of the box body after passing through the stepped sealing ring.

[0017] In one embodiment, a first push shaft groove and a second push shaft groove are provided on one side of the push shaft close to the circuit board assembly, the on-off spring is provided in the first push shaft groove, and the speed regulating spring is provided in the second push shaft groove.

[0018] In one embodiment, the circuit board assembly is a double-sided circuit board assembly, and the surface of the double-sided circuit board assembly is provided with obliquely arranged copper foil strips or carbon film resistor strips and gear output copper foil;

[0019] The obliquely arranged copper foil strip or carbon film resistor strip cooperates with the speed regulating spring, and the gear output copper foil cooperates with the on-off spring.

[0020] In one embodiment, a positioning column is provided at one end of the push shaft disposed in the box body, and a push shaft through hole is provided at one end of the push shaft disposed in the box body, one end of the return spring is sleeved on the positioning column, and the other end of the return spring is disposed in the push shaft through hole.

[0021] In one embodiment, the upper cover is provided with grooves around the upper cover, and the base body is provided with bosses around the base body, and the grooves around the upper cover and the bosses around the base body are just inserted into each other to form a maze structure;

[0022] The base body is also provided with a plurality of base body wedge blocks, and the upper cover is provided with a plurality of upper cover connection holes that match the base body wedge blocks, and the number and position of the upper cover connection holes correspond to the number and position of the base body wedge blocks. The implementation of the present disclosure includes the following technical effects:

[0023] 1. The brushless signal trigger switch with anti-locking and self-locking functions provided in the embodiments of the present disclosure can be suitable for use in electric tools that require self-locking and anti-self-locking functions, such as stirrers, etc., and has a wide range of uses.

[0024] 2. The brushless signal trigger switch with anti-locking and self-locking functions provided in the embodiment of the present disclosure has excellent dustproof performance, making the electric tool durable and meeting national safety standards.

[0025] 3. The brushless signal trigger switch with anti-locking and self-locking functions provided in the embodiment of the present disclosure has a signal on-off function. After the switch trigger is released, the circuit board is completely de-energized, so that the leakage current of the power tool battery is zero, which can effectively extend the battery life and reduce the risk caused by excessive discharge of the battery, and meets the requirements of national safety standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The figure is a schematic diagram of the appearance of a brushless signal trigger switch with anti-locking and self-locking functions in an embodiment of the present disclosure from one perspective.

[0027] Figure 2 It is a schematic diagram of the appearance of the brushless signal trigger switch with anti-locking and self-locking functions in another perspective in the embodiment of the present disclosure.

[0028] Figure 3 The diagram is a schematic diagram of a brushless signal trigger switch with anti-locking and self-locking functions without a trigger according to an embodiment of the present disclosure.

[0029] Figure 4 The diagram is a schematic diagram of the assembly of the trigger and the lock block of the brushless signal trigger switch with anti-locking and self-locking functions according to the embodiment of the present disclosure.

[0030] Figure 5An exploded view of the components of a brushless signal trigger switch with anti-locking and self-locking functions according to an embodiment of the present disclosure.

[0031] Figure 6 A schematic diagram of the assembly of a lock block and a lock rod of a brushless signal trigger switch with anti-locking and self-locking functions according to an embodiment of the present disclosure.

[0032] Figure 7 Schematic diagram of the position of the spring sheet and the circuit board assembly before the trigger of the brushless signal trigger switch with anti-locking and self-locking functions according to the embodiment of the present disclosure is pressed.

[0033] Figure 8 Schematic diagram of the positions of the spring and circuit board components after the trigger of the brushless signal trigger switch with anti-locking and self-locking functions is pressed in the embodiment of the present disclosure.

[0034] In the figure, 1-base body, 2-upper cover, 3-push shaft, 4-reset spring, 5-circuit board assembly, 6-on-off spring, 7-speed regulating spring, 8-trigger, 9-locking structure, 10-step sealing ring, 11-positioning column, 31-first push shaft groove, 32-push shaft second groove, 33-push shaft connector, 81-trigger cavity, 82-rib position, 83-trigger first connecting groove, 84-trigger second connecting groove, 85-trigger connecting Connecting hole, 91-locking block, 92-locking rod, 93-locking spring, 911-locking button, 912-top block, 913-locking shaft, 921-locking hole, 922-locking rod connecting hole, 101-locking button mounting platform, 102-locking button through hole, 103-base body connecting strip, 104-semicircular stepped hole of base body, 105-wedge block of base body, 201-upper cover connecting strip, 202-semicircular stepped hole of upper cover, 203-upper cover connecting hole. DETAILED DESCRIPTION

[0035] The present disclosure will be described in detail below in conjunction with the embodiments and drawings. It should be noted that the embodiments described are only intended to facilitate the understanding of the present disclosure and do not have any limiting effect on it. The directions described in this application, such as up, down, left, and right, are used for the convenience of describing with reference to the drawings and do not constitute a limitation on the scope of protection.

[0036] like Figure 1-Figure 5As shown, the present disclosure provides a brushless signal trigger switch with anti-locking and self-locking functions, comprising a base body 1, an upper cover 2, a push shaft 3, and a reset spring 4 arranged on the push shaft 3, one end of the push shaft 3 extends out of the box body formed by the base body 1 and the upper cover 2, and the other end is arranged in the box body; a circuit board assembly 5 is arranged on one side of the push shaft 3, and a switching spring 6 and a speed regulating spring 7 are arranged on the side of the push shaft 3 close to the circuit board assembly 5, and the switching spring 6 and the speed regulating spring 7 can slide on the circuit board assembly 5 with the movement of the push shaft 3; a trigger 8 is arranged on the end of the push shaft 3 extending out of the box body, a trigger cavity 81 is arranged on the side of the trigger 8 close to the push shaft 3, and a rib position 82 is arranged in the trigger cavity 81, and a locking structure 9 is arranged on the base body 1, and the anti-locking and self-locking functions of the switch are realized through the cooperation of the locking structure 9 and the rib position 82.

[0037] The DC signal switch provided by the present disclosure provides a rib position 82 in the trigger cavity 81, and a locking structure 9 is provided on the base body 1, so that the anti-locking and self-locking functions of the switch are realized through the cooperation of the locking structure 9 and the rib position 82. Specifically, when a person directly presses the trigger 8, the rib position 82 on the trigger 8 is just supported by the top block on the locking structure 9, and the switch cannot be pressed, thereby realizing the anti-locking function of the switch; when the trigger 8 is pressed to the bottom, the self-locking function of the switch is realized by pressing the locking structure 9 again, and at this time, the trigger 8 cannot be reset normally.

[0038] Therefore, the brushless signal trigger switch with anti-locking and self-locking functions provided in the embodiment of the present disclosure can be used in rechargeable electric tools that require anti-locking and self-locking functions, and has a wide range of uses, so that the electric tools meet safety requirements, provide a good user experience, and meet national safety standards. In addition, the brushless signal trigger switch with anti-locking and self-locking functions provided in the embodiment of the present disclosure has a signal on-off function. After releasing the switch trigger 8, the circuit board assembly 5 is completely uncharged, so that the leakage current of the electric tool battery is zero, thereby effectively extending the battery life and reducing the risk caused by excessive battery discharge, which meets national safety standards.

[0039] like Figure 4-Figure 6 As shown, the locking structure 9 includes a locking block 91, a locking rod 92 and a locking spring 93. The locking block 91 is provided with a locking button 911 and a top block 912. A locking shaft 913 is provided inside the locking button 911. The locking spring 93 is sleeved on the locking shaft 913. The locking rod 92 is provided with a locking hole 921 that cooperates with the locking shaft 913. The top block 912 cooperates with the rib position 82.

[0040] In this embodiment, when a person directly presses the trigger 8 by hand, the rib 82 arranged in the trigger cavity 81 is just supported by the top block 912 on the locking block 91, so that the switch cannot be pressed, thereby realizing the reverse locking function of the switch; before pressing the trigger 8, it is necessary to press the lock button 911 of the locking block 91 first, and then when pressing the trigger 8, the rib 82 on the trigger 8 and the top block 912 on the locking block 91 are offset, and the trigger 8 can be pressed normally; when the trigger 8 is pressed to the bottom, the lock button 911 on the locking block 91 is pressed again, and the lock shaft 913 arranged inside the lock button 911 is inserted into the lock hole 921 on the lock rod 92, and then the trigger 8 is released, and the lock shaft 913 arranged inside the lock button 911 hooks the lock hole 921 on the lock rod 92, and the trigger 8 cannot be reset normally, thereby realizing the self-locking function of the switch.

[0041] like Figure 4 As shown, a lock button mounting platform 101 is provided on the base body 1, and a lock button through hole 102 is provided on the lock button mounting platform 101. The lock shaft 913 passes through the lock button through hole 102 and cooperates with the lock hole 921. The lock button 911 is sleeved on the lock button mounting platform 101, and a lock rod connecting hole 922 is provided on the lock rod 92. The lock rod 92 is sleeved on the push shaft 3 through the lock rod connecting hole 922.

[0042] In this embodiment, a lock button mounting platform 101 is provided on the base body 1, and a lock button through hole 102 is provided on the lock button mounting platform 101, so that the lock shaft 913 can pass through the high lock button through hole 102 and cooperate with the lock hole 921 to realize the self-locking of the switch. At the same time, the lock button 911 is mounted on the lock button mounting platform 101 to facilitate the installation and operation of the lock button 911, and a lock rod connecting hole 922 is provided on the lock rod 92, and the lock rod 92 is mounted on the push shaft 3 through the lock rod connecting hole 922, so that the lock rod 92 can be installed while ensuring that the lock rod 92 can move with the movement of the push shaft 3.

[0043] like Figure 3 and Figure 5 As shown, the base body 1 is provided with a base body connecting strip 103, the upper cover 2 is provided with an upper cover connecting strip 201, a first trigger connecting groove 83 cooperating with the base body connecting strip 103 is provided on the inner wall on one side of the trigger cavity 81, and a second trigger connecting groove 84 cooperating with the upper cover connecting strip 201 is provided on the inner wall on the other side of the trigger cavity 81.

[0044] In this embodiment, a base body connecting strip 103 is provided on the base body 1, an upper cover connecting strip 201 is provided on the upper cover 2, and at the same time, a first trigger connecting groove 83 cooperating with the base body connecting strip 103 is provided on the inner wall on one side of the trigger cavity 81, and a second trigger connecting groove 84 cooperating with the upper cover connecting strip 201 is provided on the inner wall on the other side of the trigger cavity 81, so as to avoid the problem of poor contact between the circuit board assembly 5 and the on-off spring 6 and the speed regulating spring 7 provided on the circuit board assembly 5 due to the push shaft 3 shaking up and down or forward and backward during the movement when the trigger 8 is pressed or released.

[0045] Preferably, if Figure 3 and Figure 5 As shown, the longitudinal sections of the base body connecting strip 103, the upper cover connecting strip 201, and the first connecting groove 83 and the second connecting groove 84 of the trigger are all set to a T-shaped structure, so that the base body connecting strip 103 can be tightly matched with the first connecting groove 83 of the trigger, and the upper cover connecting strip 201 can be tightly matched with the second connecting groove 84 of the trigger, so as to further avoid the problem of poor contact between the circuit board assembly 5 and the on-off spring 6 and the speed regulating spring 7 arranged on the circuit board assembly 5 due to the push shaft 3 shaking up and down or forward and backward during the movement when pressing or releasing the trigger 8.

[0046] like Figure 5 As shown, the base body 1 is provided with a base body semicircular stepped hole 104, and the upper cover 2 is provided with an upper cover semicircular stepped hole 202. The base body semicircular stepped hole 104 and the upper cover semicircular stepped hole 202 constitute a push shaft stepped hole, and a stepped sealing ring 10 is provided in the push shaft stepped hole. The push shaft 3 extends out of the box body after passing through the stepped sealing ring 20.

[0047] In the present embodiment, a semicircular stepped hole 104 of the base body is provided on the base body 1, and a semicircular stepped hole 202 of the upper cover is provided on the upper cover 2, so that the semicircular stepped hole 104 of the base body and the semicircular stepped hole 202 of the upper cover can constitute a push shaft stepped hole, and a stepped sealing ring 10 is provided in the push shaft stepped hole, and the push shaft 3 extends out of the box body after passing through the stepped sealing ring 10, so as to realize the dustproof function of the contact part between the switch push shaft 3 and the box body, so that the switch in the present embodiment has excellent dustproof performance, thereby making the electric tool durable and meeting the requirements of national safety standards.

[0048] like Figure 5 As shown, a first push shaft groove 31 and a second push shaft groove 32 are provided on the push shaft 3 on one side close to the circuit board assembly 5 , the on-off spring 6 is provided in the first push shaft groove 31 , and the speed regulating spring 7 is provided in the second push shaft groove 32 .

[0049] Preferably, the circuit board assembly 5 is a double-sided circuit board assembly, and the surface of the double-sided circuit board assembly is provided with an obliquely arranged copper foil strip or carbon film resistor strip and a gear output copper foil; the obliquely arranged copper foil strip or carbon film resistor strip cooperates with the speed regulating spring 7, and the gear output copper foil cooperates with the on-off spring 6.

[0050] like Figure 5 As shown, one end of the push shaft 3 disposed in the box body is provided with a positioning column 11, and one end of the push shaft 3 disposed in the box body is provided with a push shaft through hole, one end of the return spring 4 is sleeved on the positioning column 11, and the other end of the return spring 4 is disposed in the push shaft through hole.

[0051] like Figure 5 As shown, the upper cover 2 is provided with grooves around the upper cover, and the base body 1 is provided with bosses around the base body. The grooves around the upper cover and the bosses around the base body are just inserted into each other to form a maze structure to achieve the dust-proof function at the connection between the base body 1 and the upper cover 2; by also providing a plurality of base body wedge blocks 105 on the base body 1, and providing a plurality of upper cover connecting holes 203 on the upper cover 2 that cooperate with the base body wedge blocks 105, and making the number and positions of the upper cover connecting holes 203 correspond to the number and positions of the base body wedge blocks 105 respectively, the connection between the base body 1 and the upper cover 2 is achieved.

[0052] It is understandable that if Figure 4 and Figure 5 As shown, one end of the push shaft 3 extending out of the box body is provided with a push shaft connector 33, and the push shaft connector 33 is provided with an external thread. A trigger connecting hole 85 is provided in the trigger cavity 81, and an internal thread is provided in the trigger connecting hole 85. The push shaft 3 is connected to the trigger 8 by the cooperation of the external thread on the push shaft connector 33 and the internal thread in the trigger connecting hole 85.

[0053] Figure 7 Schematic diagram of the position of the spring sheet and the circuit board assembly before the trigger of the brushless signal trigger switch with anti-locking and self-locking functions according to the embodiment of the present disclosure is pressed.

[0054] Figure 8 Schematic diagram of the positions of the spring and circuit board components after the trigger of the brushless signal trigger switch with anti-locking and self-locking functions is pressed in the embodiment of the present disclosure.

[0055] The brushless signal trigger switch with anti-locking and self-locking functions provided by the present disclosure has the following working process:

[0056] like Figure 5As shown, when the trigger 8 is pressed directly by hand, the rib 82 on the trigger 8 is just supported by the top block 912 on the lock block 91, and the switch cannot be pressed, thus realizing the anti-locking function. When the lock button 911 of the lock block 91 is pressed first, and then the trigger 8 is pressed, the rib 82 on the trigger 8 is staggered with the top block 912 on the lock block 91, and the trigger 8 can be pressed normally, and the trigger 8 drives the push shaft 3 to slide to the right, driving the on-off spring 6 to slide from left to right, and the pins Pin 1 and Pin 5 on the right surface of the circuit board assembly 5 are connected, and the control board receives the connection signal, controls the power tool to be powered on, and continues to press the trigger 8, and the push shaft 3 then drives the speed regulating spring 7 to slide from right to left, so that the resistance between the pins Pin 3 and Pin 4 on the right surface of the circuit board assembly 5 changes from large to small, and outputs this signal to the power tool control board through the wire, thus realizing the speed regulating and voltage boosting function of the power tool.

[0057] When the trigger 8 is pressed to the bottom, the lock button 911 on the lock block 91 is pressed again, and the lock shaft 913 on the lock block 91 is inserted into the lock hole 921 on the lock rod 928. Then the trigger 8 is released, and the lock shaft 913 set inside the lock button 911 hooks the lock hole 921 on the lock rod 92, and the trigger 8 cannot be reset normally, realizing the self-locking function of the switch. Press the trigger 8 again, and the lock shaft 913 set inside the lock button 911 is reset under the action of the locking spring 93, and the lock shaft 913 set inside the lock button 911 and the lock hole 921 on the lock rod 92 are staggered. Release the trigger 8, and the push shaft 3 drives the trigger 8 to move to the left under the action of the reset spring 4, and then drives the speed regulating spring 7 to slide from right to left, so that the resistance between the pins Pin 3 and Pin 4 on the right surface of the circuit board assembly 5 changes from small to large, and this signal is output to the power tool control board through the wire, realizing the speed regulating and voltage reducing function of the power tool. Continue to release the trigger 8, driving the on-off spring 6 to slide from right to left, and the pins Pin 1 and Pin 5 on the right surface of the circuit board assembly 5 are disconnected. The control board receives a disconnection signal and controls the power tool to cut off power.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure, rather than to limit the protection scope of the present disclosure. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present disclosure can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present disclosure.

Claims

1. A brushless signal trigger switch with anti-locking and self-locking functions, characterized in that: It includes a base body, an upper cover, a push shaft, and a return spring arranged on the push shaft, one end of the push shaft extends out of the box body formed by the base body and the upper cover, and the other end is arranged in the box body; A circuit board assembly is arranged on one side of the push shaft, and a switching spring and a speed regulating spring are arranged on one side of the push shaft close to the circuit board assembly, and both the switching spring and the speed regulating spring can slide on the circuit board assembly as the push shaft moves; A trigger is provided at one end of the push shaft extending out of the box body, a trigger cavity is provided on the side of the trigger close to the push shaft, a rib is provided in the trigger cavity, and a locking structure is provided on the base body, and the anti-locking and self-locking functions of the switch are realized through the cooperation of the locking structure and the rib.

2. The brushless signal trigger switch with anti-locking and self-locking functions according to claim 1, characterized in that: The locking structure comprises a locking block, a locking rod and a locking spring; The locking block is provided with a locking button and a top block, a locking shaft is provided inside the locking button, the locking spring is sleeved on the locking shaft, a locking hole matched with the locking shaft is provided on the locking rod, and the top block matches with the rib position.

3. The brushless signal trigger switch with anti-locking and self-locking functions according to claim 2, characterized in that: The base body is provided with a lock button mounting platform, the lock button mounting platform is provided with a lock button through hole, the lock shaft passes through the lock button through hole and then matches with the lock hole, and the lock button is sleeved on the lock button mounting platform; The lock rod is provided with a lock rod connecting hole, and the lock rod is sleeved on the push shaft through the lock rod connecting hole.

4. The brushless signal trigger switch with anti-locking and self-locking functions according to any one of claims 1 to 3, characterized in that: A base body connecting strip is provided on the base body, an upper cover connecting strip is provided on the upper cover, a first trigger connecting groove cooperating with the base body connecting strip is provided on the inner wall on one side of the trigger cavity, and a second trigger connecting groove cooperating with the upper cover connecting strip is provided on the inner wall on the other side of the trigger cavity.

5. The brushless signal trigger switch with anti-locking and self-locking functions according to claim 4, characterized in that: The longitudinal sections of the base body connecting strip, the upper cover connecting strip, the first trigger connecting groove and the second trigger connecting groove are all arranged in a T-shaped structure.

6. The brushless signal trigger switch with anti-locking and self-locking functions according to any one of claims 1 to 3, characterized in that: The base body is provided with a semicircular stepped hole, and the upper cover is provided with a semicircular stepped hole. The semicircular stepped hole of the base body and the semicircular stepped hole of the upper cover constitute a push shaft stepped hole, and a stepped sealing ring is provided in the push shaft stepped hole. The push shaft extends out of the box body after passing through the stepped sealing ring.

7. The brushless signal trigger switch with anti-locking and self-locking functions according to any one of claims 1 to 3, characterized in that: A first push shaft groove and a second push shaft groove are arranged on one side of the push shaft close to the circuit board assembly. The on-off spring is arranged in the first push shaft groove, and the speed regulating spring is arranged in the second push shaft groove.

8. The brushless signal trigger switch with anti-locking and self-locking functions according to claim 7, characterized in that: The circuit board assembly is a double-sided circuit board assembly, and the surface of the double-sided circuit board assembly is provided with obliquely arranged copper foil strips or carbon film resistor strips and gear output copper foil; The obliquely arranged copper foil strip or carbon film resistor strip cooperates with the speed regulating spring, and the gear output copper foil cooperates with the on-off spring.

9. The brushless signal trigger switch with anti-locking and self-locking functions according to any one of claims 1 to 3, characterized in that: One end of the push shaft disposed in the box body is provided with a positioning column, and one end of the push shaft disposed in the box body is provided with a push shaft through hole, one end of the return spring is sleeved on the positioning column, and the other end of the return spring is disposed in the push shaft through hole.

10. The brushless signal trigger switch with anti-locking and self-locking functions according to any one of claims 1 to 3, characterized in that: The upper cover is provided with grooves around the upper cover, and the base body is provided with bosses around the base body. The grooves around the upper cover and the bosses around the base body are just inserted into each other to form a maze structure. The base body is also provided with a plurality of base body wedge blocks, and the upper cover is provided with a plurality of upper cover connecting holes matching with the base body wedge blocks, and the number and positions of the upper cover connecting holes respectively correspond to the number and positions of the base body wedge blocks.

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