Trigger switch with restart protection function

Abstract

The invention provides a trigger switch with a restart protection function, and relates to the technical field of trigger switches. The switch comprises a base body, an upper cover, a push shaft, a reset spring and a circuit board assembly, one end of the push shaft extends out of a box body formed by the base body and the upper cover, and the end, extending out of the box body, of the push shaft is provided with a trigger; a locking structure is arranged on the trigger, a locking block structure matched with the locking structure is arranged on the upper cover, and a connection structure matched with the circuit board assembly is arranged in the box body. According to the switch disclosed by the invention, the circuit board assembly is arranged in the switch, and the control board of the switch is integrated on the circuit board assembly, so that the switch in the embodiment can realize power-off protection, overcurrent protection and soft start functions without additional wiring.

Description

Technical Field

[0001] The present disclosure relates to a trigger switch, and more particularly to a trigger switch with a restart protection function. Background Art

[0002] Currently, the switch functions of medium-sized angle grinders on the market are basically similar, but there are the following functional defects:

[0003] The commonly used switch of a medium-sized angle grinder is generally a mechanical switch. The switch realizes the closing and locking function through a locking button. After the switch is locked, if the medium-sized angle grinder is accidentally powered off, it will start immediately when the power comes back on, which does not meet the GB15093.1 standard and poses a major safety hazard.

[0004] 2. The commonly used switch of a medium-sized angle grinder is a mechanical switch and does not have a soft start function. When the start switch is turned on, the switch of the medium-sized angle grinder will shake due to inertia. If it is not held firmly, it is easy to fall, also posing a major safety hazard.

[0005] 3. For the commonly used switch of a medium-sized angle grinder, some are a combination of a mechanical switch and a controller. In this way, there are more connecting lines and the assembly process is complex, which brings certain difficulties to the production of medium-sized angle grinders.

[0006] Therefore, it is imperative to design a trigger switch with a restart protection function. Summary of the Invention

[0007] According to the first aspect of the embodiments of the present disclosure, a trigger switch with a restart protection function is provided. The switch includes a base body, an upper cover, a push shaft, a return spring, and a circuit board assembly. One end of the push shaft extends out of the box body formed by the base body and the upper cover, and a trigger is provided at the end of the push shaft extending out of the box body.

[0008] A locking structure is provided on the trigger, a lock block structure cooperating with the locking structure is provided on the upper cover, and a connection structure cooperating with the circuit board assembly is provided in the box body.

[0009] In one embodiment, the locking structure includes a lock button and a lock button spring. An installation cavity is provided on the lock button, and installation posts are provided at both the bottom and the top of the installation cavity. The lock button spring is installed in the installation cavity through the installation posts.

[0010] Installation holes are provided on the trigger, first through holes are provided on both side walls of the installation holes, second through holes are provided on both side walls of the installation cavity, and a first fastener passes through the first through holes and the second through holes to movably connect the lock button to the trigger.

[0011] The lock block structure includes a lock button top block and a lock button lock hook, and both the lock button top block and the lock button lock hook cooperate with the lock button.

[0012] In one embodiment, the closing structure includes a moving contact assembly, a static contact piece assembly cooperating with the moving contact assembly, a moving contact bracket for fixing the moving contact assembly, and a contact spring group for electrically connecting the moving contact bracket to the circuit board assembly. The static contact piece assembly, the moving contact bracket, and the contact spring group are all disposed on the base body;

[0013] The closing structure further includes a connecting piece and an output piece disposed on the base body;

[0014] The connecting piece is provided with a connecting piece connecting column, and the connecting piece is electrically connected to the circuit board assembly through the connecting piece connecting column; the output piece is provided with an output piece connecting column, and the output piece is electrically connected to the circuit board assembly through the output piece connecting column.

[0015] In one embodiment, the moving contact assembly includes a rotating block, a driving spring piece, a moving contact, and a moving contact point;

[0016] One end of the push shaft disposed in the box body is provided with a push shaft groove, and one end of the rotating block is provided with a rotating block connecting head. One end of the rotating block is connected to the push shaft through the cooperation of the rotating block connecting head and the push shaft groove;

[0017] The other end of the rotating block is provided with a rotating block hook, and one end of the driving spring piece is provided with a first spring piece slot. One end of the driving spring piece is connected to the rotating block through the cooperation of the rotating block hook and the first spring piece slot;

[0018] The other end of the driving spring piece is provided with a second spring piece slot, and one end of the moving contact is provided with a moving contact connecting head. The other end of the driving spring piece is connected to the moving contact through the cooperation of the second spring piece slot and the moving contact connecting head;

[0019] The other end of the moving contact is provided with a moving contact connecting block, the moving contact connecting block is provided with a moving contact connecting groove, the moving contact bracket is provided with a bracket connecting head, the bracket connecting head is provided with a bracket connecting hole, and the moving contact connecting block passes through the bracket connecting hole and is connected to the bottom of the rotating block through the moving contact connecting groove;

[0020] The moving contact point is disposed at the bottom of one end of the moving contact connected to the driving spring piece.

[0021] In one embodiment, the static contact piece assembly includes a first wiring column, a second wiring column, a static contact piece, and a static contact point. The first wiring column is connected to the connecting piece, the second wiring column is connected to the static contact piece, and the static contact point is disposed on the static contact piece and cooperates with the moving contact point.

[0022] In one embodiment, the static contact piece assembly further includes a screw fixing plate, and both the first terminal and the second terminal are fixed to the base body through the screw fixing plate.

[0023] In one embodiment, the moving contact assembly further includes an auxiliary elastic piece, a group of elastic piece mounting holes are provided on the auxiliary elastic piece, a group of bracket mounting holes are provided on the moving contact bracket, and a second fastener sequentially passes through the group of bracket mounting holes and the group of elastic piece mounting holes to connect the auxiliary elastic piece to the moving contact bracket.

[0024] In one embodiment, a group of base body mounting grooves are provided on the base body, and the first terminal and the second terminal are arranged in the group of base body mounting grooves;

[0025] Both the tops of the first terminal and the second terminal are provided with terminal mounting heads, wiring holes are provided on both the connecting piece and the static contact piece, and the connecting piece and the static contact piece are respectively connected to the first terminal and the second terminal through the cooperation of the terminal mounting head and the wiring hole.

[0026] In one embodiment, a stepped sealing sleeve is provided on the part of the push shaft extending out of the box body, an upper cover mounting table is provided on the top of the upper cover, and the stepped sealing sleeve is connected to the upper cover mounting table;

[0027] A first circumferential groove of the base body and a second circumferential groove of the base body are provided on the base body, a first circumferential rib of the upper cover and a second circumferential rib of the upper cover are provided on the upper cover, the first circumferential groove of the base body and the first circumferential rib of the upper cover form a first labyrinth insertion structure, and the second circumferential groove of the base body and the second circumferential rib of the upper cover form a second labyrinth insertion structure.

[0028] In one embodiment, an upper cover connecting column is provided on the top of the upper cover, a trigger connecting column is provided at the bottom of the trigger, one end of the return spring is connected to the upper cover connecting column, and the other end of the return spring is connected to the trigger connecting column.

[0029] The implementation of the present disclosure includes the following technical effects:

[0030] The trigger switch with a restart protection function provided by the present disclosure integrates the control board of the switch on the circuit board assembly by arranging the circuit board assembly inside the switch, so that the switch in this embodiment can achieve power-off protection, over-current protection and soft start functions without additional wiring; moreover, the trigger switch in this embodiment can achieve instant on and instant off functions, and can also achieve a closing and locking function. Description of the Drawings

[0031] Figure 1 Stereogram of the trigger switch with restart protection function of the present disclosure.

[0032] Figure 2 is Figure 1 Reverse stereogram of the trigger switch with restart protection function in

[0033] Figure 3 is Figure 1 Partial sectional view of the contact part when the switch is in the off state in

[0034] Figure 4 is Figure 1 Partial sectional view of the contact part when the switch is in the on state in

[0035] Figure 5 Exploded structure schematic diagram of the trigger switch with restart protection function of the present disclosure.

[0036] Figure 6 is this Figure 1 Schematic diagram of the on-structure when the switch is in the off state in

[0037] Figure 7 is this Figure 1 Schematic diagram of the on-structure when the switch is in the on state in

[0038] Figure 8 Schematic diagram of the base body of the trigger switch with restart protection function of the present disclosure.

[0039] Figure 9 Assembly schematic diagram of the base body, on-structure and push shaft of the switch with restart protection function of the present disclosure.

[0040] Figure 10 Circuit schematic diagram of the switch with restart protection function of the present disclosure.

[0041] Figure 11 Electronic circuit diagram of the circuit board of the switch with restart protection function of the present disclosure.

[0042] Figure 12 Electronic circuit diagram of the circuit board of the switch with restart protection function of the present disclosure.

[0043] In the figure, 1 - base body, 2 - upper cover, 3 - push shaft, 4 - return spring, 5 - circuit board assembly, 6 - trigger, 7 - locking structure, 8 - lock block structure, 9 - connection structure, 10 - first fastener, 11 - second fastener, 12 - stepped seal sleeve, 13 - pin, 31 - push shaft groove, 32 - push shaft through hole, 61 - mounting hole, 62 - trigger fixing hole, 611 - first through hole, 71 - lock button, 72 - lock button spring, 711 - mounting cavity, 712 - tail hook, 713 - second through hole, 81 - lock button top block, 82 - lock button lock hook, 91 - moving contact assembly, 92 - static contact piece assembly, 93 - moving contact bracket, 94 - contact spring group, 95 - connecting piece, 96 - output piece, 951 - connecting piece connecting column, 961 - output piece connecting column, 911 - rotating block, 912 - driving elastic piece, 913 - moving contact, 914 - moving contact point, 915 - auxiliary elastic piece, 9111 - rotating block connecting head, 9112 - rotating block catch, 9121 - first elastic piece slot, 9122 - second elastic piece slot, 9131 - moving contact connecting head, 9132 - moving contact connecting block, 9133 - moving contact connecting groove, 931 - bracket connecting head, 932 - bracket connecting hole, 933 - bracket mounting hole group, 921 - first wiring column, 922 - second wiring column, 923 - static contact piece, 924 - static contact point, 925 - screw fixing plate, 926 - wiring column mounting head, 927 - wiring hole, 9151 - elastic piece mounting hole group, 101 - base body mounting groove group, 102 - first peripheral groove of base body, 103 - second peripheral groove of base body, 201 - upper cover mounting table, 202 - upper cover connecting column, 203 - upper cover fixing table, 204 - fixing column, 301 - switch, 302 - power-off detection circuit, 303 - MCU power supply circuit, 304 - MCU minimum system, 305 - trigger circuit, 306 - current detection circuit, 307 - power transistor, 308 - load. Detailed implementation mode

[0044] The present disclosure will be described in detail below in conjunction with embodiments and the accompanying drawings. It should be noted that the described embodiments are only for facilitating the understanding of the present disclosure and do not limit it in any way. The orientations in this application, such as up, down, left, and right, are used for convenience of description with reference to the accompanying drawings and do not constitute a limitation on the protection scope.

[0045] As Figures 1-9 shown, an embodiment of the present disclosure provides a trigger switch with a restart protection function, including: a base body 1, an upper cover 2, a push shaft 3, a return spring 4, and a circuit board assembly 5. 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 a trigger 6 is provided at the end of the push shaft 3 extending out of the box body; a locking structure 7 is provided on the trigger 6, a lock block structure 8 cooperating with the locking structure 7 is provided on the upper cover 2, and a connection structure 9 cooperating with the circuit board assembly 5 is provided in the box body.

[0046] The trigger switch with restart protection function provided by the present disclosure is configured to provide a circuit board assembly inside the switch and integrate the control board of the switch onto the circuit board assembly, so that the switch in this embodiment can achieve power-off protection, overcurrent protection and soft start functions without the need for additional wiring.

[0047] like Figure 5 As shown, the locking structure 7 includes a lock button 71 and a lock button spring 72. A mounting cavity 711 is provided on the lock button 71, and mounting posts are provided at the bottom and top of the mounting cavity 711, so that the lock button spring 72 can be installed in the mounting cavity 711 through the mounting posts at the bottom and top of the mounting cavity 711. A mounting hole 61 is provided on the trigger 6, and first through holes 611 are provided on both side walls of the mounting hole 61, and second through holes 713 are provided on both side walls of the mounting cavity 711, so that the first fastener 10 passes through the first through holes 611 and the second through holes 713 to movably connect the lock button 71 to the trigger 6. The lock block structure 8 is further provided to include a lock button top block 81 and a lock button hook 82, so that the lock button top block 81 and the lock button hook 82 are both matched with the lock button 71. It should be noted that the first fastener can be a rivet.

[0048] In this embodiment, a locking structure is provided on the trigger and a locking block structure is provided on the upper cover. When the switch is turned on, the lock button 71 is first turned and then the trigger 6 is released, so that the tail hook 712 on the lock button 71 and the lock button hook 82 on the upper cover 2 are hooked with each other, and the trigger 6 cannot be reset, thereby realizing the closed locking function of the switch.

[0049] like Figures 3-7 As shown, the connection structure 9 includes a moving contact assembly 91, a static contact assembly 92 cooperating with the moving contact assembly 91, a moving contact bracket 93 fixing the moving contact assembly 91, and a contact spring group 94 electrically connecting the moving contact bracket 93 to the circuit board assembly 5; wherein, the static contact assembly 92, the moving contact bracket 93 and the contact spring group 94 are all arranged on the base body 1; the connection structure 9 also includes a connecting piece 95 and an output piece 96 arranged on the base body 1, and a connecting piece connecting column 951 is provided on the connecting piece 95, so that the connecting piece 95 is electrically connected to the circuit board assembly 5 through the connecting piece connecting column 951, and an output piece connecting column 961 is provided on the output piece 96, so that the output piece 96 is electrically connected to the circuit board assembly 5 through the output piece connecting column 961.

[0050] like Figures 5-7As shown, the moving contact assembly 91 includes a rotating block 911, a driving spring 912, a moving contact 913 and a moving contact point 914; a push shaft groove 31 is provided on one end of the push shaft 3 in the box body, and a rotating block connector 9111 is provided at one end of the rotating block 911, so that one end of the rotating block 911 is connected to the push shaft 3 through the cooperation of the rotating block connector 9111 and the push shaft groove 31; a rotating block hook 9112 is provided at the other end of the rotating block 911, and a spring first slot 9121 is provided at one end of the driving spring 912, so that one end of the driving spring 912 is connected to the rotating block 911 through the cooperation of the rotating block hook 9112 and the spring first slot 9121; a spring second slot is provided at the other end of the driving spring 912 Slot 9122, a moving contact connector 9131 is set at one end of the moving contact 913, and the other end of the driving spring 912 is connected to the moving contact 913 through the cooperation of the second spring slot 9122 and the moving contact connector 9131; by setting a moving contact connecting block 9132 at the other end of the moving contact 913, and setting a moving contact connecting slot 9133 on the moving contact connecting block 9132, and at the same time setting a bracket connector 931 on the moving contact bracket 93, and setting a bracket connecting hole 932 on the bracket connector 931, so that the moving contact connecting block 9132 passes through the bracket connecting hole 932 and is connected to the bottom of the rotating block 911 through the moving contact connecting slot 9133; the moving contact point 914 is set at the bottom of one end of the moving contact 913 connected to the driving spring 912.

[0051] In this embodiment, after pressing the trigger 6, the trigger 6 can drive the push shaft 3 to move downward, and the push shaft 3 drives the tail of the rotating block 911, thereby driving the rotating block 911 to perform a clockwise seesaw motion, causing the right side of the driving spring 912 to tilt upward. When the driving spring 912 tilts to a certain height, the left side of the driving spring 912 will instantly press down the head of the moving contact 913, causing the moving contact 914 and the static contact 924 to contact, thereby realizing the instantaneous connection function of the switch.

[0052] like Figure 5 As shown, the static contact piece assembly 92 includes a first terminal 921, a second terminal 922, a static contact piece 923 and a static contact point 924, and the first terminal 921 is connected to the connecting piece 95, the second terminal 922 is connected to the static contact piece 923, and the static contact point 924 is arranged on the static contact piece 923 so that the static contact point 924 cooperates with the moving contact point 914.

[0053] like Figure 5 As shown, by configuring the stationary contact piece assembly 92 to further include a screw fixing plate 925 , the first terminal 921 and the second terminal 922 are fixed to the base body 1 through the screw fixing plate 925 .

[0054] like Figure 5As shown, the moving contact assembly 91 further includes an auxiliary elastic piece 915, and an elastic piece mounting hole group 9151 is arranged on the auxiliary elastic piece 915. Meanwhile, a bracket mounting hole group 933 is arranged on the moving contact bracket 93, so that the second fastener 11 sequentially passes through the bracket mounting hole group 933 and the elastic piece mounting hole group 9151 to connect the auxiliary elastic piece 915 to the moving contact bracket 93. It should be noted that the second fastener 11 can be a screw.

[0055] As Figure 5 and Figure 8 and Figure 9 As shown, by arranging a base body mounting groove group 101 on the base body 1, the first terminal 921 and the second terminal 922 are both arranged in the base body mounting groove group 101; by arranging terminal mounting heads 926 at the tops of the first terminal 921 and the second terminal 922, and arranging terminal holes 927 on both the connecting piece 95 and the static contact piece 923, the connecting piece 95 and the static contact piece 923 are respectively connected to the first terminal 921 and the second terminal 922 through the cooperation of the terminal mounting head 926 and the terminal hole 927.

[0056] As Figures 1-2 , Figure 5 As shown, by arranging a stepped sealing sleeve 12 on the part of the push shaft 3 extending out of the box body, and arranging an upper cover mounting table 201 on the top of the upper cover 2, the stepped sealing sleeve 12 is connected to the upper cover mounting table 201 to realize the dust-proof function of the push shaft part. By arranging a first circumferential groove 102 and a second circumferential groove 103 on the base body 1, and arranging a first circumferential rib and a second circumferential rib on the upper cover 2, a first labyrinth insertion structure is formed between the first circumferential groove 102 of the base body and the first circumferential rib of the upper cover, and a second labyrinth insertion structure is formed between the second circumferential groove 103 of the base body and the second circumferential rib of the upper cover, thereby realizing the dust-proof function between the base body and the upper cover.

[0057] As Figure 5 As shown, by arranging an upper cover connecting column 202 on the top of the upper cover 2 and arranging a trigger connecting column at the bottom of the trigger 6, one end of the return spring 4 is connected to the upper cover connecting column 202, and the other end of the return spring 4 is connected to the trigger connecting column.

[0058] It should be noted that, as Figure 5 shown, in this embodiment, a trigger fixing hole 62 is arranged at one end of the trigger where no locking structure is provided, a corresponding upper cover fixing table 203 is arranged on the upper cover, and fixing columns 204 are arranged on both sides of the upper cover fixing table 203. The trigger 7 is movably connected to the upper cover 2 through the cooperation of the trigger fixing hole 73 on the trigger 7 and the fixing columns 204 on the upper cover fixing table 203.

[0059] It should be further noted that, asFigure 5 As shown, in this embodiment, a push shaft through hole 32 is provided on one end of the push shaft extending out of the box body, and a trigger slot is provided on the trigger 6. The pin 13 passes through the push shaft through hole and is engaged with the trigger slot to connect the push shaft to the trigger 6.

[0060] The present disclosure provides a trigger switch with a restart protection function, and its working process is as follows:

[0061] Pressing the trigger 6, the trigger 6 drives the push shaft 3 to move downward, and the push shaft 3 drives the tail of the rotating block 911, thereby driving the rotating block 911 to perform a clockwise seesaw motion, thereby causing the right side of the driving spring 912 to tilt upward. When the driving spring 912 tilts to a certain height, the left side of the driving spring 912 will instantly press down the head of the moving contact 913, causing the moving contact 914 to contact the static contact 924, thereby realizing the instantaneous connection function of the switch.

[0062] After the switch is turned on, the lock button 71 is toggled and the trigger 6 is released. The tail hook 712 on the lock button 71 and the lock button hook 82 on the upper cover 2 are hooked with each other. The trigger 6 cannot be reset and the switch realizes the closed locking function.

[0063] Press the trigger 6 again, and the lock button 71 is reset under the action of the lock button spring 72. At this time, release the trigger 6, and the trigger 6 moves upward under the action of the reset spring 4, thereby driving the push shaft 3 to move upward. The push shaft 3 drives the tail of the rotating block 911, thereby driving the rotating block 911 to do a counterclockwise seesaw motion, thereby causing the right side of the driving spring 912 to tilt downward. When the driving spring 912 tilts to a certain height, the left side of the driving spring 912 will instantly pull up the head of the contact 913, causing the moving contact 914 and the static contact 924 to separate instantly, realizing the instantaneous disconnection function of the switch.

[0064] Figure 10 This is a circuit diagram of a trigger switch with restart protection function disclosed in the present invention. Figure 10 As shown, the circuit structure includes a first input terminal a, a second input terminal b, a first output terminal c, and a second output terminal d; wherein the first input terminal a and the second input terminal b are respectively connected to the two poles of the power supply, and the first output terminal c and the second output terminal d are connected to the two ends of the load 908.

[0065] The circuit further includes a switch 301 , a power failure detection circuit 302 , an MCU power supply circuit 303 , an MCU minimum system 304 , a trigger circuit 305 , a current detection circuit 306 and a power tube 307 .

[0066] The input end of the switch 301 is connected to the first input end a and the second input end b, and the output end thereof is connected to the first output end c and the first port of the current detection circuit 306;

[0067] The four input ports of the power-off detection circuit 302 are connected to the four ports of the switch 301, and its output port is connected to the first input port of the MCU minimum system 304;

[0068] The first port and the second port of the MCU power supply circuit 303 are connected to the output end of the switch 301, and its output port is connected to the power input end of the MCU minimum system 304;

[0069] The input end of the trigger circuit 305 is connected to the second port of the MCU minimum system 304, and its output end is connected to the control port of the power tube (307;

[0070] The first port of the current detection circuit 306 is connected to the second port of the power tube 307, its second port is connected to the output end of the switch 301, and its output port is connected to the third port of the MCU minimum system 304;

[0071] The input end of the power tube 307 is connected to the second output end d, its output port is connected to the input port of the current detection circuit 306, and its control port is connected to the output port of the trigger circuit 305.

[0072] Figure 11 and Figure 12 is the circuit board electronic circuit diagram of the switch with restart protection function of the present disclosure.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than limiting the protection scope of the present disclosure. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present disclosure.

Claims

1. A trigger switch with a restart protection function, characterized in that, The switch includes a base body, an upper cover, a push shaft, a return spring and a circuit board assembly. One end of the push shaft extends out of the box body formed by the base body and the upper cover, and a trigger is provided at the end of the push shaft extending out of the box body. A locking structure is provided on the trigger, a lock block structure cooperating with the locking structure is provided on the upper cover, and a connection structure cooperating with the circuit board assembly is provided in the box body.

2. The switch according to claim 1, wherein The locking structure includes a lock button and a lock button spring. An installation cavity is provided on the lock button, and installation posts are provided at both the bottom and the top of the installation cavity. The lock button spring is installed in the installation cavity through the installation posts. Installation holes are provided on the trigger, first through holes are provided on both side walls of the installation holes, second through holes are provided on both side walls of the installation cavity, and a first fastener passes through the first through holes and the second through holes to movably connect the lock button to the trigger. The lock block structure includes a lock button top block and a lock button lock hook, and both the lock button top block and the lock button lock hook cooperate with the lock button.

3. The switch according to claim 1 or 2, characterized in that, The connection structure includes a moving contact component, a static contact piece component cooperating with the moving contact component, a moving contact support for fixing the moving contact component, and a contact spring group for electrically connecting the moving contact support to the circuit board assembly. The static contact piece component, the moving contact support and the contact spring group are all provided on the base body. The connection structure further includes a connection piece and an output piece provided on the base body. A connection piece connection post is provided on the connection piece, and the connection piece is electrically connected to the circuit board assembly through the connection piece connection post; an output piece connection post is provided on the output piece, and the output piece is electrically connected to the circuit board assembly through the output piece connection post.

4. The switch according to claim 3, wherein The moving contact component includes a rotating block, a driving elastic piece, a moving contact and a moving contact point. One end of the push shaft provided in the box body is provided with a push shaft groove, and one end of the rotating block is provided with a rotating block connection head. One end of the rotating block is connected to the push shaft through the cooperation of the rotating block connection head and the push shaft groove. The other end of the rotating block is provided with a rotating block catch, and one end of the driving elastic piece is provided with a first elastic piece slot. One end of the driving elastic piece is connected to the rotating block through the cooperation of the rotating block catch and the first elastic piece slot. The other end of the driving elastic piece is provided with a second elastic piece slot, and one end of the moving contact is provided with a moving contact connection head. The other end of the driving elastic piece is connected to the moving contact through the cooperation of the second elastic piece slot and the moving contact connection head. The other end of the moving contact is provided with a moving contact connection block, a moving contact connection groove is provided on the moving contact connection block, a support connection head is provided on the moving contact support, a support connection hole is provided on the support connection head, and the moving contact connection block passes through the support connection hole and is connected to the bottom of the rotating block through the moving contact connection groove. The moving contact point is provided at the bottom of one end of the moving contact connected to the driving elastic piece.

5. The switch according to claim 4, characterized in that, The static contact piece assembly includes a first terminal, a second terminal, a static contact piece and a static contact point. The first terminal is connected to the connecting piece, the second terminal is connected to the static contact piece, and the static contact point is arranged on the static contact piece and cooperates with the moving contact point.

6. The switch according to claim 5, characterized in that, The static contact piece assembly further includes a screw fixing plate. The first terminal and the second terminal are both fixed to the base body through the screw fixing plate.

7. The switch according to claim 5, characterized in that The moving contact head assembly further includes an auxiliary elastic piece. A group of elastic piece mounting holes is arranged on the auxiliary elastic piece, and a group of support mounting holes is arranged on the moving contact head support. A second fastener sequentially passes through the group of support mounting holes and the group of elastic piece mounting holes to connect the auxiliary elastic piece to the moving contact head support.

8. The switch according to claim 6, characterized in that, A group of base body mounting grooves is arranged on the base body. The first terminal and the second terminal are arranged in the group of base body mounting grooves. Terminal mounting heads are arranged at the tops of the first terminal and the second terminal. Wiring holes are arranged on the connecting piece and the static contact piece. The connecting piece and the static contact piece are respectively connected to the first terminal and the second terminal through the cooperation of the terminal mounting head and the wiring hole.

9. The switch according to claim 1 or 2, characterized in that, A stepped sealing sleeve is arranged on the part of the push shaft extending out of the box body. An upper cover mounting table is arranged on the top of the upper cover. The stepped sealing sleeve is connected to the upper cover mounting table. A first circumferential groove of the base body and a second circumferential groove of the base body are arranged on the base body. A first circumferential rib of the upper cover and a second circumferential rib of the upper cover are arranged on the upper cover. The first circumferential groove of the base body and the first circumferential rib of the upper cover form a first labyrinth insertion structure, and the second circumferential groove of the base body and the second circumferential rib of the upper cover form a second labyrinth insertion structure.

10. The switch according to claim 1 or 2, characterized in that, An upper cover connecting column is arranged on the top of the upper cover. A trigger connecting column is arranged at the bottom of the trigger. One end of the return spring is connected to the upper cover connecting column, and the other end of the return spring is connected to the trigger connecting column.

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