CN206098184U - Reverse control's speed governing switch - Google Patents

Abstract

The utility model relates to a button switch technical field especially relates to a reverse control's speed governing switch, the on -line screen storage device comprises a base, the upper end of base sets up and pushes away the handle and drive the trigger that pushes away handle linear motion, the side of base is provided with the PCB board, the PCB board is provided with the contact piece, the upper end of PCB board is provided with the slip terminal with contact piece sliding connection, push away the front end and slip terminal fixed connection of handle, the rear end that pushes away the handle is articulated with the upper end of trigger, and the trigger still sets up the bracing piece, and the one end and the base of bracing piece are connected, the other end of bracing piece is articulated with the trigger, the utility model discloses a trigger and push away similar lever principle's between the handle structural relation, drive slip terminal need not to use and to realize the regulation to the motor rotational speed too energetically contact piece sliding surface, operator, and is laborsaving, accords with the ergonomic design.

Description

A kind of speed-regulating switch of Reverse Turning Control

Technical field

This utility model is related to button switch technical field, more particularly to a kind of speed-regulating switch of Reverse Turning Control.

Background technology

Speed-regulating switch goes to change the methods such as the series of motor, voltage, electric current, frequency using electronic circuit or micro-chip processor The rotating speed of controlled motor, so that motor reaches a kind of electrical switch of higher performance.

In the form of torsion is pushed away, operator is turned to motor speed-regulating switch great majority in the market by pressing the button Speed is adjusted, however button during pressing can be subject to many resistances, if desired for overcome spring deformation produce The frictional resistance that clearance fit is produced between all parts of resistance, also button assembly, therefore operator needed using larger Power can just press the operation button, realize regulation to motor rotary speed, integrated operation feel is not good enough, does not meet ergonomics and sets Meter.

The content of the invention

The purpose of this utility model is to provide a kind of speed-regulating switch of Reverse Turning Control, this reality for the deficiencies in the prior art With the structural relation of similar lever principle between new employing trigger and push handle, slip terminal is driven to slide on the first contact chip surface It is dynamic so that trigger is capable of achieving Reverse Turning Control operation between the two with push handle, and operator is without using being capable of achieving to horse energetically very much It is up to the regulation of rotating speed, laborsaving, meet ergonomic designs.

This utility model is achieved through the following technical solutions, a kind of speed-regulating switch of Reverse Turning Control, including base, The upper end of the base arranges push handle and drives the trigger of push handle linear motion, and the side of the base is provided with pcb board, described Pcb board is provided with the first contact chip, and the upper end of the pcb board is provided with the slip terminal being slidably connected with the first contact chip, institute The front end for stating push handle is fixedly connected with slip terminal, and the rear end of the push handle is hinged with the upper end of trigger, and the trigger also sets up Support bar, one end of the support bar are connected with base, and the other end and the trigger of the support bar are hinged.

Preferably, the upper end of the base is also associated with switch module, the switch module include master switch terminal, Two contact chips and the auxiliary switch terminal being arranged above master switch terminal, the front end of the push handle is provided with contact head, described to connect Contact is slidably connected with the second contact chip.

Preferably, second contact chip includes main part and the bending part of bending upwards, the auxiliary switch terminal with The bending part of the second contact chip is fixedly connected.

Preferably, the front end of the push handle is additionally provided with draw-in groove, the upper end of the slip terminal is provided with and draw-in groove card The fixture block for connecing.

Preferably, the trigger is additionally provided with the spring for resetting, one end of the spring is connected with base, described The other end of spring is connected with trigger.

The beneficial effects of the utility model：A kind of speed-regulating switch of Reverse Turning Control, including base, the upper end of the base sets Put push handle and drive the trigger of push handle linear motion, the side of the base to be provided with pcb board, the pcb board is provided with first Contact chip, the upper end of the pcb board are provided with the slip terminal being slidably connected with the first contact chip, the front end of the push handle and cunning Moved end is fixedly connected, and the rear end of the push handle is hinged with the upper end of trigger, and the trigger also sets up support bar, the support bar One end be connected with base, the other end and the trigger of the support bar are hinged, operator's cocking, the hinge of trigger and support bar Socket part is similar to lever principle equivalent to a fulcrum, and the upper end of trigger can promote push handle straight forward movement, and push handle drives slides Terminal slides along the first contact chip surface, pcb board connection external computer, for controlling motor rotary speed, when slip terminal is along first Contact chip surface sliding distance is more remote, and motor rotary speed is faster, realizes accurate speed governing to motor, this utility model using trigger with The structural relation of lever principle is similar between push handle, drives slip terminal to slide on the first contact chip surface, operator need not make It is with the regulation being capable of achieving energetically very much to motor rotary speed, laborsaving, meet ergonomic designs.

Description of the drawings

Fig. 1 is dimensional structure diagram of the present utility model.

Fig. 2 is right view of the present utility model.

Fig. 3 is decomposition texture schematic diagram of the present utility model.

Specific embodiment

1 to accompanying drawing 3, and specific embodiment below in conjunction with the accompanying drawings are described further to this utility model.

As shown in Figure 1 to Figure 3, a kind of speed-regulating switch of Reverse Turning Control, including base 1, the upper end of the base 1 are arranged and are pushed away Handle 2 and the trigger 3 of the linear motion of push handle 2 is driven, the side of the base 1 is provided with pcb board 4, the pcb board 4 is provided with the One contact chip 41, the upper end of the pcb board 4 are provided with the slip terminal 42 being slidably connected with the first contact chip 41, the push handle 2 Front end be fixedly connected with slip terminal 42, rear end and the upper end of trigger 3 of the push handle 2 are hinged, and the trigger 3 also sets up Strut 7, one end of the support bar 7 are connected with base 1, and the other end and the trigger 3 of the support bar 7 are hinged.

As shown in figure 1, the articulated section of the present embodiment operator cocking 3, trigger 3 and support bar 7 is equivalent to one Point, is similar to lever principle, and the upper end of trigger 3 can promote the motion of 2 straight forward movement of push handle, 2 movement locus of push handle and trigger 3 Track is conversely, push handle 2 drives slip terminal 42 along the slip of 41 surface of the first contact chip, the connection external computer of pcb board 4, for controlling Motor rotary speed processed, when slip terminal 42 is more remote along 41 surface sliding distance of the first contact chip, motor rotary speed is faster, realizes to motor Accurate speed governing, between trigger 3 and push handle 2 adopt lever construction, operator without using too energetically can drive slip terminal Slide on the first contact chip surface, it is laborsaving, meet ergonomic designs；In addition, cocking 3, the meeting extension spring 6 of trigger 3, draw When stretching resistance produced by spring 6 and pressing relative to conventional button switch, the resistance being subject to is little.

In the present embodiment, the upper end of the base 1 is also associated with switch module 5, and the switch module 5 includes master switch end Sub 51, second contact chip 52 and the auxiliary switch terminal 53 being arranged above master switch terminal 51, the front end of the push handle 2 is provided with Contact head 21, the contact head 21 are slidably connected with the second contact chip 52, second contact chip 52 include main part 521 and to The bending part 522 of upper bending, the auxiliary switch terminal 53 are fixedly connected with the bending part 522 of the second contact chip 52, and push handle 2 drives The bending part 522 of the second contact chip 52 is downwardly turned over so that auxiliary switch terminal 53 is contacted with master switch terminal 51, that is, the electricity for switching Road closes, and speed-regulating switch is started working.

In the present embodiment, the front end of the push handle 2 is additionally provided with draw-in groove 22, the upper end of the slip terminal 42 be provided with The fixture block 421 of 22 clamping of draw-in groove, for sliding, terminal 42 is fixedly connected with push handle 2, when trigger 3 drives push handle 2 to move along a straight line, is pushed away Handle 2 can drive slip terminal 42 to slide along 41 surface of contact chip.

In the present embodiment, the trigger 3 is additionally provided with the spring 6 for resetting, and one end and the base 1 of the spring 6 connect Connect, the other end of the spring 6 is connected with trigger 3, when operator stops exerting a force to trigger 3, resetted by 6 deformation of spring, So that operation is more convenient.

Above content is only preferred embodiment of the present utility model, for one of ordinary skill in the art, according to this reality With new thought, will change in specific embodiments and applications, this specification content should not be construed as To restriction of the present utility model.

Claims (5)

1. a kind of speed-regulating switch of Reverse Turning Control, it is characterised in that：Including base（1）, the base（1）Upper end arrange push handle （2）With driving push handle（2）The trigger of linear motion（3）, the base（1）Side be provided with pcb board（4）, the pcb board （4）It is provided with the first contact chip（41）, the pcb board（4）Upper end be provided with and the first contact chip（41）The cunning being slidably connected Moved end（42）, the push handle（2）Front end and slip terminal（42）It is fixedly connected, the push handle（2）Rear end and trigger（3） Upper end be hinged, the trigger（3）Also set up support bar（7）, the support bar（7）One end and base（1）Connection, described Strut（7）The other end and trigger（3）It is hinged.

2. the speed-regulating switch of a kind of Reverse Turning Control according to claim 1, it is characterised in that：The base（1）Upper end It is also associated with switch module（5）, the switch module（5）Including master switch terminal（51）, the second contact chip（52）Be arranged at Master switch terminal（51）The auxiliary switch terminal of top（53）, the push handle（2）Front end be provided with contact head（21）, the contact Head（21）With contact chip（52）It is slidably connected.

3. the speed-regulating switch of a kind of Reverse Turning Control according to claim 2, it is characterised in that：Second contact chip（52） Including main part（521）The bending part of bending upwards（522）, the auxiliary switch terminal（53）With the second contact chip（52）Folding Turn of bilge（522）It is fixedly connected.

4. the speed-regulating switch of a kind of Reverse Turning Control according to claim 1, it is characterised in that：The push handle（2）Front end It is additionally provided with draw-in groove（22）, the slip terminal（42）Upper end be provided with and draw-in groove（22）The fixture block of clamping（421）.

5. the speed-regulating switch of a kind of Reverse Turning Control according to claim 1, it is characterised in that：The trigger（3）Also set up There is the spring for resetting（6）, the spring（6）One end and base（1）Connection, the spring（6）The other end and trigger （3）Connection.