CN105895434A

CN105895434A - Pressed type rotary change-over switch

Info

Publication number: CN105895434A
Application number: CN201610500216.3A
Authority: CN
Inventors: 袁冲
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-30
Filing date: 2016-06-30
Publication date: 2016-08-24

Abstract

The invention discloses a pressed type rotary change-over switch. The pressed type rotary change-over switch comprises an insert, a switch cover, a switch seat, a sliding rod, a contact sheet, a spring, a sliding top rod and a key cap, wherein the switch cover and the switch seat are assembled together in an interference fit manner by four guide posts and blind holes, the insert is arranged in the switch seat, the contact sheet provided with a square hole is arranged at a left side of the interior of the switch cover, four contact points are punched on the contact sheet, are arranged along a circumference at equal intervals and are in contact with the insert, the sliding rod is arranged at a right side of the switch cover in a penetrating way and is provided with a square rod member, the contact sheet sleeves the sliding rod, the sliding top rod sleeves the square rod member of the sliding rod, the spring sleeves the surface of the sliding top rod, and the key cap is connected with a right end of the sliding top rod. The contact spring rotates at a fixed angle and enters a next contact region every time when the switch key cap is pressed, and the pressed type rotary change-over switch is suitably used for circuit conversion or connection/disconnection, and is small in size, wide in application range and long in service lifetime.

Description

A kind of press and turn changing switch

Technical field

The present invention relates to a kind of permutator, be specifically related to a kind of press and turn changing switch.

Background technology

Permutator is that a kind of two-way or two-way of being available for is with power source or the device for switching of load transfer.Permutator is formed by more piece contact combinations, in the electrical apparatus, it is used for non-frequently connecting and disjunction circuit, switches on power and load, measuring three-phase voltage and control rotating and the star-triangle start etc. of low capacity asynchronous motor, it is an entirety that these parts are fastened by bolts.Press and turn changing switch is suitable for circuit conversion and uses, it is possible to does break-make and uses.Traditional press type rotates conversion, and its inserts, contact chip and rotating mechanism design are not reasonable, and service life is short, greatly limit its function and the scope of application.

Summary of the invention

It is an object of the invention to provide the press and turn changing switch of length in a kind of service life, its reasonable in design, applied widely.

For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, the present invention is achieved through the following technical solutions:

A kind of press and turn changing switch, including inserts, switch cover, switch base, slide bar, contact chip, spring, sliding mandril and keycap, described switch cover passes through four guide pillars together with blind hole interference fit with switch base, described inserts is located in switch base, it is positioned at described switch cover inside left and is provided with the contact chip of a band square opening, described contact chip is gone out four contact points of circumferentially decile and is contacted with inserts, run through the slide bar being provided with a square rod member of band on the right side of described switch cover, described contact chip is set on slide bar, it is arranged with sliding mandril on the square rod member of described slide bar, described sliding mandril surface is arranged with spring, right-hand member connects keycap.

Further, described switch cover is provided with four straight troughs and four blind slots, and the most described sliding mandril and keycap are equipped with four the straight keys coordinated with it.

Further, the working portion of described inserts is divided into seven regions of a, b, c, d, e, f, g, described switch cover is provided with the first exit, the second exit and three terminal, wherein, a, c region connects with the second exit, d, f region connects with three terminal, and b, e, g region connects with the first exit, four contacts of described contact chip respectively with a, c, e and g area contact of inserts.

Further, described contact chip preferably makes of red copper material, and the height of contact point is 0.55mm.

The invention has the beneficial effects as follows:

The present invention realizes every pressing and once switchs keycap, and contact spring rotates fixed angle and enters next contact area, is suitable for circuit conversion or break-make use, and volume is little, and range is wide, and service life is long.

Accompanying drawing explanation

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is the assembling schematic diagram of the present invention；

Fig. 2 is the structural representation of switch cover of the present invention；

Fig. 3 is the structural representation of switch base of the present invention；

Fig. 4 is the fundamental diagram of the present invention；

Label declaration in figure: 1-inserts, 2-switch cover, 21-straight trough, 22-blind slot, 3-switch base, 31-the first exit, 32-the second exit, 33-three terminal, 4-slide bar, 5-contact chip, 6-spring, 7-sliding mandril, 8-keycap.

Detailed description of the invention

Below with reference to the accompanying drawings and in conjunction with the embodiments, the present invention is described in detail.

nullAs shown in Figure 1 to Figure 3，A kind of press and turn changing switch，Including inserts 1、Switch cover 2、Switch base 3、Slide bar 4、Contact chip 5、Spring 6、Sliding mandril 7 and keycap 8，Described switch cover 2 passes through four guide pillars together with blind hole interference fit with switch base 3，Described inserts 1 is located in switch base 3，It is positioned at described switch cover 2 inside left and is provided with the contact chip 5 of a band square opening，Described contact chip 5 is gone out four contact points of circumferentially decile and is contacted with inserts 1，Described contact chip 5 red copper material makes，The height of contact point is 0.55mm，Run through the slide bar 4 being provided with a square rod member of band on the right side of described switch cover 2，Described contact chip 5 is set on slide bar 4，It is arranged with sliding mandril 7 on the square rod member of described slide bar 4，Described sliding mandril 7 surface is arranged with spring 6，Right-hand member connects keycap 8.

Further, described switch cover 2 is provided with four straight troughs 21 and four blind slots 22, and the most described sliding mandril 7 and keycap 8 are equipped with four the straight keys coordinated with four straight troughs 21.

Further, the working portion of described inserts 1 is divided into a, b, c, d, e, f, seven regions of g, described switch base 3 is provided with the first exit 31, second exit 32 and three terminal 33, wherein, a, c region connects with the second exit 32, d, f region connects with three terminal 33, b, e, g region connects with the first exit 31, four contacts of described contact chip 5 respectively with a of inserts 1, c, e and g area contact, achieve the first exit 31 by contact chip 5 to connect with three terminal 33, now the first exit 31 and the second exit 32 disconnect, so go round and begin again, it is achieved that the continuous transformation process of switch.

The operation principle of the present embodiment is:

As shown in Figure 4, when keycap 8 pressurized moves down, four longer keys on keycap 6 just move along a straight line downwards along four straight troughs 21 of setting on switch cover 2, now, four the straight keys being located at sliding mandril 7 upper surface also move along a straight line downwards, due to the upper end V-shaped groove of sliding mandril 7 of the present invention be located at the V-shaped groove of keycap 8 lower end and mutually stagger certain angle α, when four straight keys of sliding mandril 7 depart from four straight troughs on switch cover 2, V-shaped groove on keycap 8 forces the V-shaped groove of sliding mandril 7 to make sliding mandril 7 rotation alpha angle, sliding mandril 7 is also turned clockwise α angle by slide bar band moving contacting plate 5.When unclamping keycap 8, back stretch by spring 6, sliding mandril 7 and keycap 8 is forced upwards to reset, now have rotated α angle due to sliding mandril 7, the inclined-plane making sliding mandril 7 enters 45 ° of inclined-planes of switch cover, when switch resets, the inclined-plane of switch cover 3 forces the straight key inclined-plane of sliding mandril 7 along its apparent motion, so that sliding mandril 7 have rotated again β angle, alpha+beta=45 °, so twice rotation of sliding mandril 7 has just driven contact chip 5 to rotate 45° angle, it is achieved thereby that switch conversion.

Claims

null1. a press and turn changing switch，Including inserts (1)、Switch cover (2)、Switch base (3)、Slide bar (4)、Contact chip (5)、Spring (6)、Sliding mandril (7) and keycap (8)，It is characterized in that: described switch cover (2) and switch base (3) pass through four guide pillars together with blind hole interference fit，Described inserts (1) is located in switch base (3)，It is positioned at described switch cover (2) inside left and is provided with the contact chip (5) of a band square opening，Described contact chip (5) is gone out four contact points of circumferentially decile and is contacted with inserts (1)，Run through described switch cover (2) right side and be provided with the slide bar (4) of a square rod member of band，Described contact chip (5) is set on slide bar (4)，Sliding mandril (7) it is arranged with on the square rod member of described slide bar (4)，Described sliding mandril (7) surface is arranged with spring (6)，Right-hand member connects keycap (8).
A kind of press and turn changing switch the most according to claim 1, it is characterized in that: described switch cover (2) is provided with on four straight troughs (21) and four blind slots (22), the most described sliding mandril (7) and keycap (8) and is equipped with four the straight keys coordinated with four straight troughs (21).
A kind of press and turn changing switch the most according to claim 1, it is characterized in that: the working portion of described inserts (1) is divided into a, b, c, d, e, f, seven regions of g, described switch base (3) is provided with the first exit (31), second exit (32) and three terminal (33), wherein, a, c region connects with the second exit (32), d, f region connects with three terminal (33), b, e, g region connects with the first exit (31), four contacts of described contact chip (5) respectively with a of inserts (1), c, e and g area contact.
A kind of press and turn changing switch the most according to claim 1, it is characterised in that: described contact chip (5) red copper material makes, and the height of contact point is 0.55mm.