CN214152756U

CN214152756U - Square spring plate

Info

Publication number: CN214152756U
Application number: CN202021896451.5U
Authority: CN
Inventors: 周宏权
Original assignee: Yueqing Kajia Precision Electronic Technology Co ltd
Current assignee: Yueqing Kajia Precision Electronic Technology Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-09-07
Anticipated expiration: 2030-09-03

Abstract

The utility model discloses a square spring plate, which comprises a square reed, wherein the center of the reed is provided with an opening, the opening is provided with a contact end, one end of the contact end is fixed on the reed, the other end is in clearance fit with the reed, the contact end comprises an arc-shaped piece, one end of the arc-shaped piece is connected with a first elastic force arm and a second elastic force arm, the other end is connected with a third elastic force arm, a fourth elastic force arm and a contact piece, two snap rings which are distributed at intervals are arranged on two sides of the reed between the first elastic force arm and the second elastic force arm, between the first elastic force arm and the reed, between the third elastic force arm and the fourth elastic force arm, and between the fourth elastic force arm and the contact piece through an arc, the two sides of the reed are provided with snap rings which are distributed at intervals, the two sides of the reed are also provided with clamping strips, the middle part, the card strip has elasticity. After the improvement, the assembly firmness of the elastic sheet is high, and the service life is long.

Description

Square spring plate

Technical Field

The utility model relates to an electronic technology equipment limited company, more specifically say, it relates to a square shell fragment.

Background

The spring plate is a contact type spring plate for low current and low voltage, and is often used in a key switch. The elastic sheet is arranged in the switch, the contact end on the elastic sheet is contacted with the electronic component by pressing the elastic sheet, the circuit is in a connected state, and after the pressing is stopped, the contact end can automatically rebound to the original position by using the elastic force of the elastic sheet and is in a disconnected state with the electronic component. When the shell fragment was assembled in the switch, simple centre gripping was only between switch seat and button, and when the button dismantles the back, the shell fragment can drop from the switch seat easily, loses the shell fragment after, causes the switch and can't continue to use. Because the volume of shell fragment is less, when the assembly, also the condition of easily taking place to lose, cause the difficulty for the dismouting of switch, influence its service quality.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an assembly fastness is high, long service life's shell fragment.

In order to achieve the above purpose, the utility model provides a following technical scheme: a square spring plate comprises a square spring plate, a through hole is arranged at the center of the spring plate, a contact end is arranged at the through hole, one end of the contact end is fixed on the reed, the other end of the contact end is in clearance fit with the reed, the contact end comprises an arc-shaped piece, one end of the arc-shaped piece is connected with a first elastic force arm and a second elastic force arm, the other end of the arc-shaped piece is connected with a third elastic force arm, a fourth elastic force arm and the contact piece, the first elastic force arm, the second elastic force arm, the first elastic force arm and the reed, the third elastic force arm and the fourth elastic force arm, and the fourth elastic force arm and the contact piece are connected through arcs, two clamping rings are arranged on two sides of the reed at intervals, clamping strips are arranged on two sides of the reed, the middle part of the clamping strip is arched in an arc shape, clamping blocks are arranged at two ends of the clamping strip after the clamping ring penetrates through the clamping strip, and the clamping strip has elasticity.

The utility model discloses further set up to: the contact piece is a circular piece, and the first elastic force arm, the second elastic force arm, the arc piece, the third elastic force arm, the fourth elastic force arm and the contact piece are arranged in an integrated structure.

The utility model discloses further set up to: the first elastic force arm and the second elastic force arm are symmetrically arranged on the longitudinal section, and the third elastic force arm and the fourth elastic force arm are symmetrically arranged on the longitudinal section.

Through adopting above-mentioned technical scheme, through the setting of card strip, when the shell fragment assembly, can utilize the card strip to contradict with the inner wall on the switch seat for the position of shell fragment is fixed, and difficult emergence displacement avoids the shell fragment to lose. Meanwhile, the structure of the contact end is improved, so that the elastic capacity of the contact end is better, the contact end is not easy to lose elasticity after long-term use, the contact end cannot reset, and the service life of the elastic sheet is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

1. A reed; 10. a port; 11. a snap ring; 2. a contact end; 20. an arc-shaped sheet; 21. a first elastic force arm; 22. a second elastic force arm; 23. a third elastic force arm; 24. a fourth elastic force arm; 25. a contact piece; 26. A circular arc; 3. clamping the strip; 30. and (7) clamping blocks.

Detailed Description

The embodiment of the present invention will be further explained with reference to fig. 1.

A square spring plate comprises a square spring plate 1, the outer surface of the spring plate 1 is plated with silver on a single surface, a through hole 10 is formed in the center of the spring plate 1, a contact end 2 is arranged at the through hole 10, one end of the contact end 2 is fixed on the spring plate 1, the other end of the contact end is in clearance fit with the spring plate 1, the contact end 2 comprises an arc-shaped plate 20, one end of the arc-shaped plate 20 is connected with a first elastic force arm 21 and a second elastic force arm 22, the other end of the arc-shaped plate 20 is connected with a third elastic force arm 23, a fourth elastic force arm 24 and a contact plate 25, the first elastic force arm 21, the second elastic force arm 22, the first elastic force arm 21, the spring plate 1, the third elastic force arm 23, the fourth elastic force arm 24 and the contact plate 25 are connected through an arc 26, two snap rings 11 which are distributed at intervals are arranged on two sides of the spring plate 1, and clamping strips 3 are arranged on two sides of the spring plate 1, the middle part of the clamping strip 3 is arched in a shape of an arc 26, clamping blocks 30 are arranged at two ends of the clamping strip after penetrating through the clamping rings 11, and the clamping strip 3 has elasticity. The contact piece 25 is a circular piece, and the first elastic force arm 21, the second elastic force arm 22, the arc piece 20, the third elastic force arm 23, the fourth elastic force arm 24 and the contact piece 25 are arranged in an integrated structure. The first elastic force arm 21 and the second elastic force arm 22 are symmetrically arranged in the longitudinal section, and the third elastic force arm and the fourth elastic force arm 24 are symmetrically arranged in the longitudinal section

Card strip 3's mid portion arches, in the snap ring 11 of reed 1 was worn to establish at both ends, through pressing the part that card strip 3 arches, can order about card strip 3's both ends and extend towards two snap ring 11's direction, order about the part of arch and press close to reed 1, card strip 3 tends to sharp state, after loosening and pressing, card strip 3 just can resume the state of middle arch, when the assembly, can utilize the arch of card strip 3 to contradict with the inner wall of switch, play fixed reed 1's effect, can avoid the shell fragment easy removal when the assembly, the problem of easily losing.

The contact end 2 is set to be a structure consisting of an arc-shaped piece 20, a first elastic force arm 21, a second elastic force arm 22, the arc-shaped piece 20, a third elastic force arm 23 and a fourth elastic force arm 24, when the arc-shaped piece 20 is pressed, the second elastic force arm 22 can generate contact force for contact, the first elastic force arm 21 and the second elastic force arm 22 are connected through an arc 26, the contact force can be further buffered, after the arc-shaped piece 20 is pressed, one end with the contact piece 25 can move downwards, and after the contact piece 25 is contacted with an electronic component, a passage is formed. When the contact piece 25 is abutted against the electronic component, the arc 26 between the third elastic force arm 23 and the fourth elastic force arm 24 can buffer the contact force from the contact piece 25, so that the whole contact end 2 is prevented from excessively deforming due to pressure, and after the pressing is stopped, the contact end 2 can be rapidly reset and is in a disconnected state with the electronic component, so that the elasticity of the elastic piece is not easily damaged, and the service life of the elastic piece is prolonged. The contact piece 25 is arranged to be a circular piece, so that the contact area of the contact piece 25 and an electronic component is larger, and the contact piece 25 and the electronic component can be accurately contacted when the pressing operation is performed.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A square shell fragment which characterized in that: including square reed, the center department of reed is equipped with the opening, opening department is equipped with the contact jaw, contact jaw one end is fixed on the reed, and the other end is clearance fit with the reed, the contact jaw includes the arc piece, and the one end of arc piece is connected with first elastic force arm and second elastic force arm, and the other end is connected with the third elastic force arm, fourth elastic force arm and contact piece, between first elastic force arm and the second elastic force arm, between first elastic force arm and the reed, between third elastic force arm and the fourth elastic force arm, all be connected through the circular arc between fourth elastic force arm and the contact piece, the both sides of reed all are equipped with two snap rings that are interval distribution, the both sides of reed still are equipped with the card strip, the intermediate part of card strip is convex hunch-up, is equipped with the fixture block after its both ends are worn to establish the snap ring, the card strip has elasticity.

2. A square spring as claimed in claim 1, wherein: the contact piece is a circular piece, and the first elastic force arm, the second elastic force arm, the arc piece, the third elastic force arm, the fourth elastic force arm and the contact piece are arranged in an integrated structure.

3. A square spring as claimed in claim 2, wherein: the first elastic force arm and the second elastic force arm are symmetrically arranged on the longitudinal section, and the third elastic force arm and the fourth elastic force arm are symmetrically arranged on the longitudinal section.