Trigger signal switch easy to assemble

Abstract

The utility model discloses a trigger signal switch easy to assemble, which comprises a base, a push rod assembly, a circuit board assembly and a reversing assembly, the push rod assembly, the circuit board assembly and the reversing assembly are arranged in the base, a trigger keycap is arranged on the push rod assembly, and the base comprises a first shell and a second shell which are connected with each other. The first shell and the second shell are each provided with a circuit board slot, a partition plate and a reversing groove, the partition plates and the reversing grooves are located on the two sides of the circuit board slots respectively, the circuit board assemblies are connected into the circuit board slots, and the reversing assemblies are connected into the reversing grooves. The partition plate of the first shell and the partition plate of the second shell are mutually spliced to divide one side of the circuit board assembly into an action chamber and a wiring chamber which are mutually independent, the push rod assembly is movably connected in the action chamber, and a signal line is arranged in the wiring chamber. According to the utility model, the trigger signal switch assembling efficiency is improved, and the use reliability and stability of the trigger signal switch are ensured.

Description

Technical Field

[0001] The utility model relates to a signal switch, in particular to an easy-to-assemble trigger signal switch. Background Art

[0002] Currently, the brushless DC power tools on the market generally achieve various control and protection functions by using a DC trigger signal switch plus a control circuit board.

[0003] The trigger signal switch includes a base, a push rod assembly, a circuit board assembly, a reversing assembly and a trigger key cap, wherein the push rod assembly, the circuit board assembly and the reversing assembly are all arranged in the base, the trigger key cap is connected and matched with the push rod assembly, the reed on the push rod assembly and the reversing assembly reciprocate with the circuit of the circuit board assembly respectively, and the circuit board assembly also needs to lead out a signal line from the base to connect with an external control circuit. The various components inside the existing trigger signal switch are complicated to assemble and unreasonable in layout, resulting in inefficiency in the assembly process. Utility Model Content

[0004] In order to solve the above problems, the technical solution provided by the utility model is:

[0005] A trigger signal switch that is easy to assemble, comprises a base and a push rod assembly, a circuit board assembly and a reversing assembly arranged in the base, the push rod assembly is provided with a trigger key cap, the base comprises a first shell and a second shell connected to each other, the first shell and the second shell are provided with a circuit board slot, a partition plate and a reversing groove, the partition plate and the reversing groove are respectively located on both sides of the circuit board slot, the circuit board assembly is connected in the circuit board slot, the reversing assembly is connected in the reversing groove, the partition plate of the first shell and the partition plate of the second shell are spliced ​​with each other to separate one side of the circuit board assembly into an independent action chamber and a wiring chamber, the push rod assembly is movably connected in the action chamber, a signal line is provided in the wiring chamber, one end of the signal line is connected to the circuit board assembly, and the other end of the signal line extends to the outside of the base.

[0006] The utility model is further configured such that a recessed portion is provided on the partition plate of the first shell, the partition plate of the second shell is adapted to the recessed portion, and the partition plate of the second shell is connected to the recessed portion.

[0007] The utility model is further configured such that the circuit board assembly includes a circuit board, the circuit board is connected in the circuit board slot, the circuit board is respectively abutted against the partition plate of the first shell and the partition plate of the second shell, an outlet terminal is provided below the circuit board, the outlet terminal is opposite to the wiring chamber, and the outlet terminal is electrically connected to the signal line.

[0008] The utility model is further configured such that the push rod assembly includes a positioning piece, a push rod and a return spring, a positioning groove is provided at one end of the push rod, the other end of the push rod extends to the outside of the base and is connected to the trigger key cap, the positioning piece is arranged at the bottom of the action chamber, the return spring is arranged in the positioning groove, one end of the return spring is against the push rod, and the other end of the return spring is against the positioning piece.

[0009] The utility model is further configured such that a first card slot is provided on the partition plate of the first shell, a second card slot is provided on the partition plate of the second shell, the positioning member includes a base portion and a columnar portion, the first card slot and the second card slot are spliced ​​to form a card slot for accommodating the base portion, and the return spring is sleeved on the columnar portion and abuts against the base portion.

[0010] The utility model is further configured that the first shell and the second shell are provided with a push rod through groove communicated with the action chamber, the push rod includes a limiting portion and a rod body portion, the limiting portion abuts against one side of the push rod through groove, a sealing cover with an interference fit is provided in the push rod through groove, the sealing cover is sleeved on the rod body portion, and a dust cover is sleeved on the rod body portion extending to the outside of the base.

[0011] The utility model is further configured that an adjusting spring is connected to the limiting portion, and the adjusting spring is linked with the circuit board assembly as the push rod moves.

[0012] The utility model is further configured such that the reversing assembly includes a reversing lever, a reversing spring and a reversing elastic sheet. The reversing groove of the first shell and the reversing groove of the second shell are spliced ​​to form a reversing cavity. The reversing elastic sheet is located at the bottom of the reversing cavity. The reversing lever is rotatably connected in the reversing cavity and cooperates with the reversing elastic sheet. The reversing spring sheet is connected to the reversing lever. The reversing spring sheet cooperates with the circuit board assembly as the reversing lever rotates.

[0013] The utility model is further configured such that a clamping block is provided on the first shell, a clamping groove is provided on the second shell, and the first shell is connected to the second shell through the cooperation of the clamping block and the clamping groove.

[0014] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0015] The trigger signal switch of this technical solution has redesigned the internal structure and component layout of the base, separating the action chamber, wiring chamber and reversing chamber, reducing the difficulty of matching the push rod assembly, circuit board assembly and reversing assembly during assembly, and improving the assembly efficiency. At the same time, the independent action chamber, wiring chamber and reversing chamber make the push rod assembly and the reversing assembly move reliably, and the circuit board assembly can also operate stably, ensuring the reliability and stability of the use of the trigger signal switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a stereoscopic diagram of a trigger signal switch according to an embodiment of the utility model.

[0017] Figure 2 This is an exploded view of the trigger signal switch according to an embodiment of the utility model.

[0018] Figure 3 This is a cross-sectional view of a trigger signal switch according to an embodiment of the utility model.

[0019] Figure 4 This is a three-dimensional diagram of the first shell of an embodiment of the utility model.

[0020] Figure 5 This is a three-dimensional diagram of the second shell of the embodiment of the utility model.

[0021] Figure 6 It is an exploded view of the push rod assembly of the embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be a mechanical connection or an electrical connection, or it can be the internal connection of two components; it can be a direct connection, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0025] Combined with Figure 1 To Attachment Figure 5The technical scheme of the utility model is an easy-to-assemble trigger signal switch, comprising a base 1 and a push rod assembly 2, a circuit board assembly 3 and a reversing assembly 4 arranged in the base 1, the push rod assembly 4 is provided with a trigger key cap 5, the base 1 comprises a first shell 11 and a second shell 12 connected to each other, the first shell 11 and the second shell 12 are both provided with a circuit board slot, a partition plate and a reversing groove, the first shell 11 comprises a first circuit board slot 111, a first partition plate 112 and a first reversing groove 113, the first partition plate 112 and the first reversing groove 113 are respectively located on both sides of the first circuit board slot 111, the second shell 12 comprises a second circuit board slot 121, a second partition plate 122 and a second reversing groove 123, the second partition plate 123 is provided with a first circuit board slot 111, and the second circuit board slot 111 is provided with a second circuit board slot 112. The plate 122 and the second reversing groove 123 are respectively located on both sides of the second circuit board slot 121, the circuit board assembly 3 is connected in the first circuit board slot 111 and the second circuit board slot 121, the reversing assembly 4 is connected in the first reversing groove 113 and the second reversing groove 123, the first partition plate 112 of the first shell 11 and the second partition plate 122 of the second shell 12 are spliced ​​with each other to separate one side of the circuit board assembly 3 into independent action chambers 13 and wiring chambers 14, the push rod assembly 2 is movably connected in the action chamber 13, and a signal line 31 is provided in the wiring chamber 14, one end of the signal line 31 is connected to the circuit board assembly 3, and the other end of the signal line 31 extends to the outside of the base 1.

[0026] In this embodiment, a recessed portion 117 is provided on the first partition plate 112 of the first shell 11 , and the second partition plate 122 of the second shell 12 is adapted to the recessed portion 117 . The second partition plate 122 of the second shell 12 is connected to the recessed portion 117 .

[0027] In this embodiment, the circuit board assembly 3 includes a circuit board 32, and the circuit board 32 is connected to the first circuit board slot 111 and the second circuit board slot 121. The circuit board 32 is respectively abutted against the first partition plate 112 of the first shell 11 and the second partition plate 122 of the second shell 12. An outlet terminal 33 is provided below the circuit board 32, and the outlet terminal 33 is opposite to the wiring chamber 14. The outlet terminal 33 is electrically connected to the signal line 31.

[0028] In this embodiment, the push rod assembly 2 includes a positioning member 21, a push rod 22 and a return spring 23. A positioning groove 221 is provided at one end of the push rod 22, and the other end of the push rod 22 extends to the outside of the base 1 and is connected to the trigger key cap 5. The positioning member 21 is arranged at the bottom of the action chamber 13, and the return spring 23 is arranged in the positioning groove 221. One end of the return spring 23 is against the push rod 22, and the other end of the return spring 23 is against the positioning member 21; the return spring 23 is used for resetting the push rod 22.

[0029] In this embodiment, a first card slot 114 is provided on the first partition plate 112 of the first shell 11, and a second card slot 124 is provided on the second partition plate 122 of the second shell 12. The positioning member 21 includes a base portion 211 and a cylindrical portion 212. The first card slot 114 and the second card slot 124 are spliced ​​to form a card slot for accommodating the base portion 211. The return spring 23 is sleeved on the cylindrical portion 212 and abuts against the base portion 211.

[0030] In this embodiment, the first shell 11 and the second shell 12 are provided with a push rod through groove which is communicated with the action chamber 13, the first shell 11 is provided with a first push rod through groove 115, and the second shell 12 is provided with a second push rod through groove 125, the first push rod through groove 115 and the second push rod through groove 125 constitute a complete push rod through groove, the push rod 22 includes a limiting portion 222 and a rod body portion 223, the limiting portion 222 abuts against one side of the push rod through groove, a sealing cover 24 with an interference fit is provided in the push rod through groove, the sealing cover 24 is sleeved on the rod body portion 223, and a dust cover 25 is sleeved on the rod body portion 223 extending to the outside of the base 1.

[0031] In this embodiment, an adjusting spring 26 is connected to the limiting portion 222 , and the adjusting spring 26 cooperates with the circuit board assembly 3 as the push rod 22 moves.

[0032] In this embodiment, the reversing assembly 4 includes a reversing lever 41, a reversing spring 42 and a reversing elastic piece 43. The first reversing groove 113 of the first shell 11 and the second reversing groove 123 of the second shell 12 are spliced ​​to form a reversing cavity 15. The reversing elastic piece 43 is located at the bottom of the reversing cavity 15. The reversing lever 41 is rotatably connected in the reversing cavity 15 and cooperates with the reversing elastic piece 43. The reversing spring piece 42 is connected to the reversing lever 41. The reversing spring piece 42 cooperates with the circuit board assembly 3 as the reversing lever 41 rotates.

[0033] In this embodiment, a clamping block 116 is provided on the first shell 11 , and a clamping groove 126 is provided on the second shell 12 . The first shell 11 is connected to the second shell 12 through the cooperation between the clamping block 116 and the clamping groove 126 .

[0034] The trigger signal switch of the utility model technical solution has redesigned the internal structure and component layout of the base, and separated the action chamber, the wiring chamber and the reversing chamber, which reduces the difficulty of matching the push rod assembly, the circuit board assembly and the reversing assembly during assembly and improves the assembly efficiency. At the same time, the independent action chamber, wiring chamber and reversing chamber make the push rod assembly and the reversing assembly move reliably, and the circuit board assembly can also operate stably, thereby ensuring the reliability and stability of the use of the trigger signal switch.

[0035] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. An easy-to-assemble trigger signal switch, characterized in that: It includes a base and a push rod assembly, a circuit board assembly and a reversing assembly arranged in the base, the push rod assembly is provided with a trigger key cap, the base includes a first shell and a second shell connected to each other, the first shell and the second shell are provided with a circuit board slot, a partition plate and a reversing groove, the partition plate and the reversing groove are respectively located on both sides of the circuit board slot, the circuit board assembly is connected in the circuit board slot, the reversing assembly is connected in the reversing groove, the partition plate of the first shell and the partition plate of the second shell are spliced ​​with each other to separate one side of the circuit board assembly into independent action chamber and wiring chamber, the push rod assembly is movably connected in the action chamber, a signal line is provided in the wiring chamber, one end of the signal line is connected to the circuit board assembly, and the other end of the signal line extends to the outside of the base.

2. The easy-to-assemble trigger signal switch according to claim 1, characterized in that: A recessed portion is provided on the partition plate of the first shell, the partition plate of the second shell is matched with the recessed portion, and the partition plate of the second shell is connected in the recessed portion.

3. The easy-to-assemble trigger signal switch according to claim 1, characterized in that: The circuit board assembly includes a circuit board, which is connected in the circuit board slot. The circuit board is respectively abutted against the partition plate of the first shell and the partition plate of the second shell. An outlet terminal is provided below the circuit board, the outlet terminal is opposite to the wiring chamber, and the outlet terminal is electrically connected to the signal line.

4. The easy-to-assemble trigger signal switch according to claim 1, characterized in that: The push rod assembly includes a positioning member, a push rod and a return spring. A positioning groove is provided at one end of the push rod, and the other end of the push rod extends to the outside of the base and is connected to the trigger key cap. The positioning member is arranged at the bottom of the action chamber, and the return spring is arranged in the positioning groove. One end of the return spring abuts against the push rod, and the other end of the return spring abuts against the positioning member.

5. The easy-to-assemble trigger signal switch according to claim 4, characterized in that: A first card slot is provided on the partition plate of the first shell, and a second card slot is provided on the partition plate of the second shell. The positioning member includes a base and a columnar portion. The first card slot and the second card slot are spliced ​​to form a card slot for accommodating the base portion. The return spring is sleeved on the columnar portion and abuts against the base.

6. The easy-to-assemble trigger signal switch according to claim 4, characterized in that: The first shell and the second shell are provided with a push rod through groove which is communicated with the action chamber, and the push rod includes a limiting portion and a rod body portion, the limiting portion abuts against one side of the push rod through groove, a sealing cover with an interference fit is provided in the push rod through groove, the sealing cover is sleeved on the rod body portion, and a dust cover is sleeved on the rod body portion extending to the outside of the base.

7. The easy-to-assemble trigger signal switch according to claim 6, characterized in that: The limiting portion is connected with an adjusting spring, and the adjusting spring cooperates with the circuit board assembly in a linkage manner as the push rod moves.

8. The easy-to-assemble trigger signal switch according to claim 1, characterized in that: The reversing assembly includes a reversing lever, a reversing spring and a reversing elastic sheet. The reversing groove of the first shell and the reversing groove of the second shell are spliced ​​to form a reversing cavity. The reversing elastic sheet is located at the bottom of the reversing cavity. The reversing lever is rotatably connected in the reversing cavity and cooperates with the reversing elastic sheet. The reversing spring sheet is connected to the reversing lever. The reversing spring sheet cooperates with the circuit board assembly as the reversing lever rotates.

9. An easy-to-assemble trigger signal switch according to any one of claims 1 to 8, characterized in that: The first shell is provided with a clamping block, the second shell is provided with a clamping slot, and the first shell is connected to the second shell through the cooperation of the clamping block and the clamping slot.

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