CN202487465U

CN202487465U - Piano-key switch

Info

Publication number: CN202487465U
Application number: CN2012200512063U
Authority: CN
Inventors: 薛仕郎
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-17
Filing date: 2012-02-17
Publication date: 2012-10-10
Anticipated expiration: 2022-02-17

Abstract

The utility model relates to a piano-key switch which is provided with a base and a cover board; the cover board is blocked on the base; a plurality of pressing rods are arranged on the cover board; a push plate, a U-shaped auxiliary rotor plate and a static contact are arranged inside the base; the push plate is arranged at the lower part of the pressing rod; and the push plate is contacted with the pressing rods in an interlocking manner, and is contacted or disconnected with the static contact by pushing the U-shaped auxiliary rotor plate. According the utility model, the piano-key switch adopts the contact of the U-shaped auxiliary rotor plate and the static contact to form conduction so that an electric motor or an indicator light or other equipment can work; moreover, the U-shaped auxiliary rotor plate adopts phosphor-copper belt with good elasticity; the resistance to fatigue strength is very good; the service life of the switch synchronizing function is ensured; and the switch has smooth hand feeling without bad conduction.

Description

A kind of keyboard switch

Technical field

The utility model relates to the switch on a kind of small household appliances electrical equipment, and it is specifically related to a kind of keyboard switch.

Background technology

At present, existing keyboard switch adopts common sound to get an electric shock and contacts the generation path, but after this structure re-used a period of time, the feel of switch had some setbacks, and the existence of bad conducting is arranged, and influences useful life, so be badly in need of solution now.

Summary of the invention

To the problems referred to above, the purpose of the utility model proposes the keyboard switch that the auxiliary moving plate of a kind of " U " shape contacts with static contact.

A kind of keyboard switch; It is provided with a base and a cover plate; Said cover plate is arranged on the base, is arranged with a plurality ofly by bar on the said cover plate, is provided with auxiliary moving plate of push pedal, " U " shape and static contact in the said base; Said push pedal is located at by the bar bottom, and said push pedal contacts with static contact or breaks off with contacting by lever linkage and promote the auxiliary moving plate of " U " shape.

Also be provided with a plurality of by bar journal stirrup, a plurality of movable contact spring, chain, buckle, button spring, card line spring with cut somebody's hair in the said base; Saidly be located at a side by bar by the bar journal stirrup; Saidly be arranged with chain by the bar bottom; Saidly be arranged with buckle and push pedal by bar journal stirrup bottom, the sheathed button spring of said push pedal one end, the other end are connected with cutting somebody's hair.

Said a plurality of movable contact spring is located at the lower end of buckle and push pedal, and the corresponding a plurality of movable contact springs of said static contact are located in the base through card line spring, and the position of corresponding push pedal one side of the auxiliary moving plate of said " U " shape is located in the base.

Be arranged with a plurality of tower springs by bar on the said cover plate.

The utility model has the following advantages owing to take above technical scheme:

A kind of keyboard switch of the utility model adopts the auxiliary moving plate of " U " shape to contact with static contact and forms conducting; Motor or indicator light or miscellaneous equipment get final product work; And the phosphor-copper band of the auxiliary moving plate employing of " U " shape excellent spring, the antifatigue degree is fabulous, has guaranteed the life-span of switch synchronizing function; The feel of switch is smooth and easy, does not have the existence of bad conducting.

Description of drawings

Fig. 1 is the overall structure sketch map of a kind of keyboard switch of the utility model.

Fig. 2 is the cross-sectional view of a kind of keyboard switch of the utility model.

Fig. 3 is the blast structural representation of a kind of keyboard switch of the utility model.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is carried out detailed description.

Like Fig. 1, Fig. 2 and shown in Figure 3; Be a kind of keyboard switch structural representation of the utility model; It is provided with a base 1 and a cover plate 2, and cover plate 2 is arranged on the base 1, is arranged with a plurality of by bar 3 on the said cover plate 2; Be provided with between said base 1 and the cover plate 2 a plurality of by bar journal stirrup 4, a plurality of movable contact spring 6, chain 7, buckle 8, buckle spring 9, static contact 10, card line spring 11, push pedal 12, cut somebody's hair 13 and the auxiliary moving plate 14 of " U " shape, be arranged with a plurality of tower springs 5 by bar 3 on the said cover plate 2.

As shown in Figures 2 and 3, said each side correspondence card by bar 3 has one by bar journal stirrup 4, presses bar journal stirrup 4 and presses bar 3 interlocks.Saidly be arranged with chain 7 by bar 3 bottoms, be arranged with buckle 8 and push pedal 12 by bar journal stirrup 4 bottoms, the sheathed button spring 9 of push pedal 12 1 ends, the other end 13 are connected with cutting somebody's hair.Said a plurality of movable contact spring 6 is located at the lower end of buckle 8 and push pedal 12, and said static contact 10 corresponding a plurality of movable contact springs 6 are located in the base 1 through card line spring 11, and the position of auxiliary moving plate 14 corresponding push pedal 12 1 sides of said " U " shape is located in the base 1.

A kind of keyboard switch of the utility model is worked as the switch shelves and is stayed on time for any one grade; After acting on push pedal 12 and form 45 degree inclined-planes by bar 3; Push pedal 12 certain stroke that backward moves; 13 promotion " U " shapes of cutting somebody's hair are assisted moving plate 14, the auxiliary moving plate 14 of " U " shape is contacted with static contact 10 form conducting, and motor or indicator light or miscellaneous equipment get final product work.When pressing bar 3 not down not on time, button spring 9 will be held push pedal 12, promptly cut somebody's hair 13 to unclamp with the auxiliary moving plate 14 of " U " shape, and the elasticity that " U " shape assists moving plate 14 to have through self is opened, and can cut off the electricity supply, and synchronizer quits work.Because auxiliary moving plate is " U " shape, and the phosphor-copper band of material selection excellent spring, the antifatigue degree is fabulous, has guaranteed the life-span of switch synchronizing function, and the feel of switch is smooth and easy, does not have the existence of bad conducting.

The utility model only carries out illustrative with the foregoing description; The structure of each parts, the position is set and connects and all can change to some extent; On the basis of the utility model technical scheme; All improvement and equivalents of individual component being carried out according to the utility model principle all should not got rid of outside the protection range of the utility model.

Claims

1. keyboard switch; It is provided with a base and a cover plate; Said cover plate is arranged on the base, it is characterized in that: be arranged with a plurality ofly by bar on the said cover plate, be provided with auxiliary moving plate of push pedal, " U " shape and static contact in the said base; Said push pedal is located at by the bar bottom, and said push pedal contacts with static contact or breaks off with contacting by lever linkage and promote the auxiliary moving plate of " U " shape.

2. a kind of keyboard switch as claimed in claim 1; It is characterized in that: also be provided with a plurality of by bar journal stirrup, a plurality of movable contact spring, chain, buckle, button spring, card line spring with cut somebody's hair in the said base; Saidly be located at a side, saidly be arranged with chain, saidly be arranged with buckle and push pedal by bar journal stirrup bottom by the bar bottom by bar by the bar journal stirrup; The sheathed button spring of said push pedal one end, the other end are connected with cutting somebody's hair.

3. according to claim 1 or claim 2 a kind of keyboard switch; It is characterized in that: said a plurality of movable contact springs are located at the lower end of buckle and push pedal; The corresponding a plurality of movable contact springs of said static contact are located in the base through card line spring, and the position of corresponding push pedal one side of the auxiliary moving plate of said " U " shape is located in the base.

4. according to claim 1 or claim 2 a kind of keyboard switch is characterized in that: be arranged with a plurality of tower springs by bar on the said cover plate.