CN212516953U

CN212516953U - Multi-way disconnecting switch capable of selecting on-off loop

Info

Publication number: CN212516953U
Application number: CN202021539611.0U
Authority: CN
Inventors: 黄建平
Original assignee: Jiangsu Dayi M&e Tools Co ltd
Current assignee: Jiangsu Dartek Technology Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-02-09
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a can select many on-off switches in break-make return circuit, including front stall and the back seat that can relative movement, set up at least a set of independence and can connect external circuit's proximity formula and/or contact trigger assembly on the back seat, be provided with the driving lever that can stir arbitrary trigger assembly department on the front stall. The device has the advantages of simple structure, convenience in assembly, low cost and high yield, and can control a plurality of loops.

Description

Multi-way disconnecting switch capable of selecting on-off loop

Technical Field

The utility model relates to the field of switch technology, concretely relates to can select many on-off switches in break-make return circuit, can the wide application in the electric tool trade, especially impact the application on the spanner.

Background

With the increase of the types of electric tools and the change of functional requirements, new requirements on the switch function are provided by product requirements. To fulfill various functional requirements, a tool may require multiple switches to be used in combination or to use a PCB board control signal micro-current loop. The switch combination modes have high cost, difficult assembly and high switch reject ratio, and a PCB control signal micro-current loop can not pass large current but only can pass signal micro-current. Is not in line with the development trend of simple, practical and diversified functions of the electric tool.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a many on-off switch that can select the break-make return circuit, its simple structure, convenient assembling, it is with low costs, the yield is high, can control a plurality of return circuits.

In order to solve the technical problem, the utility model provides a can select many on-off switches in break-make return circuit, including front bezel and the back seat that can relative movement, set up at least a set of independence and can connect external circuit's formula of being close and/or contact trigger assembly on the back seat, be provided with the driving lever that can stir arbitrary trigger assembly department on the front bezel.

Preferably, the shift lever is rotatably or slidably disposed on the front seat.

Preferably, the trigger assembly comprises a trigger part and two pins, the trigger part is connected between the two pins in series, and the two pins are communicated with an external circuit.

Preferably, the triggering part comprises a connecting piece and an expansion link, one end of the connecting piece is elastically hinged to one of the pins, the other end of the connecting piece is adjacent to the other pin, and the expansion link is slidably arranged on the rear seat and is adjacent to the free end of the connecting piece.

Preferably, the telescopic rod is provided with an elastic piece capable of always keeping the telescopic rod to have a rebound tendency.

Preferably, the telescopic rod is in an L shape, one end of the telescopic rod is arranged on the rear seat, the head of the other end of the telescopic rod is provided with the cushion pad, or the head of the other end of the telescopic rod and the deflector rod are respectively provided with the repulsive magnetic pieces.

Preferably, a stopper is disposed on the rear seat.

Preferably, the rear seat is fixed on the electric tool, the rear seat is provided with a connecting bridge, and the front seat is slidably arranged on the connecting bridge.

Preferably, an elastic member is disposed between the front seat and the rear seat or between the front seat and the connecting bridge.

Preferably, the trigger assemblies are provided in two sets and are arranged side by side on the rear seat.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses the design of optimization is being stirred the driving lever and is being close or the contact trigger assembly department that needs triggered, changes the relative distance of back seat and front bezel, can trigger corresponding trigger assembly, realizes the break-make of the external circuit of its control. When the distance between the rear seat and the front seat is changed to control on-off, the force which is most comfortable and convenient for people to feel can be always used, namely the original optimal force application direction and position are not changed to realize on-off control; through the physical triggering mode, the passing of signal micro current and larger current can be controlled; in addition, the circuit is isolated from the human hand in such a way, and the safety is higher when a large current passes through the circuit. The whole switch combination mode has low cost, easy assembly, high yield and various control loops, and accords with the development trend of electric tools.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a multi-on-off switch capable of selecting an on-off loop according to an embodiment of the present invention;

fig. 2 is a schematic top view of a multi-on/off switch capable of selecting an on/off loop according to an embodiment of the present invention;

fig. 3 is a schematic top view of a multi-on/off switch capable of selecting an on/off loop according to an embodiment of the present invention in a second state;

fig. 4 is a schematic top view of a multi-on/off switch capable of selecting an on/off loop according to an embodiment of the present invention in a third state;

fig. 5 is a schematic top view of a multi-on/off switch capable of selecting an on/off loop according to an embodiment of the present invention in a fourth state;

fig. 6 is a schematic top view of a multi-on/off switch capable of selecting an on/off loop according to a fifth state shown in the embodiment of the present invention.

The device comprises a connecting bridge 1, a front seat 2, a deflector rod 3, a first trigger part 4, a second trigger part 5, a first pin 6, a second pin 7, a third pin 8, a fourth pin 9, a telescopic rod 11 and a rear seat 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

Examples

The embodiment of the utility model discloses many on-off switches in break-make return circuit can be selected, including front bezel 2 and back seat 12 that can relative movement. At least one set of proximity and/or contact triggering assemblies is provided on the rear seat 12 that are independent and capable of connecting to external circuitry. The front seat 2 is provided with a shifting lever 3 which can be shifted to any trigger component. Through the optimized design, the poking rod 3 is close to or contacts with the triggering assembly to be triggered, and the relative distance between the rear seat 12 and the front seat 2 is changed, so that the corresponding triggering assembly can be triggered, and the on-off of an external circuit controlled by the triggering assembly is realized. When the distance between the rear seat 12 and the front seat 2 is changed to control on-off, the force which is most comfortable and convenient for people to feel can be always used, namely, the original optimal force application direction and position are not changed to realize on-off control; through the physical triggering mode, the passing of signal micro current and larger current can be controlled; in addition, the circuit is isolated from the human hand in such a way, and the safety is higher when a large current passes through the circuit. The whole switch combination mode has low cost, easy assembly, high yield and various control loops, and accords with the development trend of electric tools.

Specifically, as shown in fig. 1 and 2, two ways of assembling the rear seat 12 and the front seat 2 may be selected. One is to fix the front seat 2 on the electric tool, and the control part of the electric tool, such as a trigger or a button, is connected to the rear seat 12, so that the rear seat 12 can be moved toward the front seat 2 after the control part is applied with a force. Secondly, the rear seat 12 is fixed on the electric tool, the control part of the electric tool is connected with the front seat 2, and the front seat 2 can approach the rear seat 12 after force is applied to the control part. The triggering assembly is triggered when the rear seat 12 and the front seat 2 approach each other. The rear is taken as an example of the rear seat 12 being fixed to the electric tool, and the arrangement of the front seat 2 fixed to the electric tool will not be described in detail.

The front seat 2 may be slidably disposed on the power tool. The connecting bridge 1 may also be provided on the rear seat 12. The front seat 2 is arranged on the connecting bridge 1 in a sliding way. The bridge 1 can provide support and guidance for the front seat 2.

In addition, in a preferred embodiment, in order to avoid false triggering, the front seat 2 or the rear seat 12 can be reset by the resilience of the control member. It is also possible to provide an elastic element between the front seat 2 and the rear seat 12 or between the front seat 2 and the bridge 1. The elastic member may always keep the front seat 2 away from the rear seat 12 without an external force. The elastic member may be a spring.

The trigger assembly comprises a trigger part and two pins. The trigger part is connected in series between the two pins. The two pins are communicated with an external circuit.

Specifically, the triggering portion includes a connecting piece and an expansion link 11. One end of the connecting piece is elastically hinged on one pin, and the other end of the connecting piece is adjacent to the other pin. The telescopic rod 11 is slidably disposed on the rear seat 12 and adjacent to a free end of the connecting piece, wherein the free end is a non-hinged end. When the telescopic rod 11 is pushed, it will push the connecting piece into contact with the pins, thus achieving the communication of the two pins. The telescopic rod 11 may be provided with an elastic member that can always keep it with a tendency to rebound. Under the action of no external force, the telescopic rod 11 can rebound rapidly to disconnect the circuit; meanwhile, when the front seat 2 has no automatic rebound capability, the front seat 2 can be pushed to reset.

The telescopic rod 11 is in an L shape. One side of which is arranged parallel to the connecting bridge 1 on the rear seat 12. It can make the more laborsaving of triggering. For the proximity trigger assembly, the head of the other side of the telescopic rod 11 and the head of the shift lever 3 can be provided with mutually repulsive magnetic pieces; when the two magnetic parts are close to each other, the telescopic rod 11 can be pushed to enable the connecting pieces to be communicated in a closed mode. For the contact type triggering assembly, a buffer cushion can be arranged on the head of the other side of the telescopic rod 11; when the driving lever 3 is abutted against the buffer pad, the telescopic rod 11 can be pushed to enable the connecting sheet to be closed and communicated. The cushion increases the life of the trigger assembly.

In order to ensure the hand feeling during use and avoid overlarge manual operating distance difference when different loops are closed, when the distances between a plurality of trigger assemblies and the deflector rod 3 are not large, one end of the deflector rod 3 is hinged on the front seat 2, and the deflector rod 3 is stirred, so that the other end of the deflector rod 3 can rotate to trigger different trigger assemblies; when the distances between the plurality of trigger assemblies and the shifting lever 3 are different greatly, the shifting lever 3 can be arranged on the front seat 2 in a sliding mode, the shifting lever 3 is shifted, and the shifting lever 3 can slide integrally.

The rear seat 12 is provided with a stopper. The stop block is positioned between the two groups of trigger components. When the shift lever 3 is located at the position of the stop block, the stop block can be abutted against the shift lever 3, so that the rear seat 12 cannot move, the locking state of the switch is realized, and the safety is ensured.

In addition, in order to improve the integration of the electric power tool, an ergonomic arc portion may be provided on the front seat 2. It can be directly exposed out of the housing of the power tool for use as a trigger.

In a preferred embodiment of the present invention, the above-mentioned trigger assemblies have two sets, and they are arranged side by side on the rear seat 12. The first group of trigger assemblies comprises a first trigger part 4, a pin two 7 and a pin four 9 which are all arranged on the rear seat 12. The pin two 7 and the pin four 9 are respectively connected to two ends of the first trigger part 4. The second set of trigger assemblies includes a second trigger portion 5, a prong one 6, and a prong three 8, all disposed on the rear seat 12. The first pin 6 and the third pin 8 are respectively connected to two ends of the second trigger part 4.

Referring to fig. 2 and 5, the shift lever 3 is shifted to one side of the second trigger portion 5, the front seat 2 is moved to make the front seat 2 approach the rear seat 12, and the shift lever 3 is pushed against the second trigger portion 5 to communicate with an external circuit.

Referring to fig. 4 and 6, the shift lever 3 is shifted to the other side to be located at the first triggering portion 4, the front seat 2 is moved to make the front seat 2 approach to the rear seat 12, and the shift lever 3 is pushed against the first triggering portion 4 to achieve communication of another external circuit.

Referring to fig. 3, when the shift lever 3 is shifted to the position of the stop, the front seat 2 cannot move or can only slightly move, and cannot be triggered, so that the switch is locked.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The multi-on-off switch capable of selecting the on-off loop is characterized by comprising a front seat and a rear seat which can move relatively, wherein at least one group of independent proximity and/or contact type trigger assemblies capable of being connected with an external circuit are arranged on the rear seat, and a shifting lever capable of shifting to any trigger assembly is arranged on the front seat.

2. A multi-switch capable of selectively switching on and off the circuit as claimed in claim 1, wherein said lever is rotatably or slidably disposed on the front seat.

3. The multi-break switch with selectable on-off loops of claim 1, wherein said trigger assembly comprises a trigger portion and two prongs, said trigger portion being connected in series between said two prongs, said two prongs communicating with an external circuit.

4. The multi on-off switch capable of selectively switching on and off the circuit as claimed in claim 3, wherein said trigger part comprises a connecting piece and a telescopic rod, one end of said connecting piece is elastically hinged on one of the pins, the other end is adjacent to the other pin, and said telescopic rod is slidably disposed on the rear seat and is adjacent to the free end of the connecting piece.

5. A multi-switch with selectable on-off loops as claimed in claim 4 wherein said telescoping rod is provided with an elastic member that can always keep it with a tendency to rebound.

6. The multi-switch capable of selecting on-off loops as claimed in claim 4, wherein said telescopic rod is "L" shaped, one end of which is disposed on the rear seat, the head of the other end is disposed with a cushion pad, or the head of the other end and the shift lever are disposed with repulsive magnetic members, respectively.

7. The multi on-off switch with selectable on-off loops of claim 1, wherein said back seat is provided with a stop.

8. The multi on-off switch with selectable on-off loops of claim 1, wherein said rear housing is fixed to a power tool, said rear housing having a connecting bridge, said front housing slidably disposed on said connecting bridge.

9. The multi on-off switch with selectable on-off loops of claim 8, wherein an elastic member is disposed between said front seat and said rear seat or between said front seat and said bridge.

10. The multi on-off switch with selectable on-off loops of claim 1, wherein said trigger assembly has two sets disposed side by side on the back seat.