Elastic sheet

Abstract

The utility model discloses an elastic sheet, which comprises a fixed base part, extension parts and four elastic arms, the whole fixed base part is in a runway shape, two long edges of the fixed base part are respectively connected with the extension parts, two opposite side edges of the extension parts are respectively connected with the elastic arms, and the elastic arms are connected with the fixed base part. And one end, far away from the extension part, of the elastic arm is provided with a contact. The elastic sheet is simple and novel in structure, is provided with four spaced contact points, and can realize four-point contact with an external device so as to meet the application requirement of multi-point contact.

Description

Technical Field

[0001] The utility model relates to the technical field of elastic structures, in particular to a spring sheet. Background Art

[0002] In the prior art, commonly used springs are often C-shaped or O-shaped, but both the C-shaped spring and the O-shaped spring are single-contact structures. When the external device requires multi-point contact, the C-shaped spring and the O-shaped spring are powerless. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a multi-contact spring with a novel structure.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a spring piece, including a fixed base, an extension part and four elastic arms, the fixed base is in the shape of a runway as a whole, the two long sides of the fixed base are respectively connected to the extension part, the opposite two side sides of the extension part are respectively connected to the elastic arms, and the elastic arm is provided with a contact point at one end away from the extension part.

[0005] In one embodiment, the material of the spring piece is metal, and the spring piece is an integral structure formed by integral processing.

[0006] In one embodiment, a connection point between the extension portion and the fixing base is located in the middle of a long side of the fixing base.

[0007] In one embodiment, the spring piece is a rotationally symmetrical structure.

[0008] In one embodiment, at least one of the extensions is located within a hollow region of the fixed base.

[0009] In one embodiment, the two extensions are both located outside the fixing base.

[0010] In one embodiment, when the spring sheet is viewed from above, the projection area of ​​the elastic arm is arc-shaped.

[0011] In one embodiment, the elastic arm includes a connected arc-shaped arm and a rising arm, the arc-shaped arm is connected to the extending portion, and the contact point is provided at an end of the rising arm away from the arc-shaped arm.

[0012] The beneficial effects of the utility model are as follows: the spring piece has a simple and novel structure, has four spaced contact points, and can achieve four-point contact with an external device to meet the application requirements of multi-point contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the structure of the spring piece of the first embodiment of the utility model;

[0015] Figure 2 It is a top view of the spring piece of the first embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the working state of the spring piece in the first embodiment of the utility model.

[0017] Description of Figure Numbers:

[0018] 1. Fix the base;

[0019] 2. Extension;

[0020] 3. Elastic arm; 31. Contact point; 32. Arc arm; 33. Rising arm;

[0021] 4. External devices. DETAILED DESCRIPTION

[0022] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0026] In addition, if the meaning of "and / or" appears in the full text is to include three parallel solutions, taking "and / or" as an example, it includes solutions, or solutions, or solutions that are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0027] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] Embodiment 1

[0029] Please refer to Figures 1 to 3 Embodiment 1 of the present utility model is: a spring piece, comprising a fixed base 1, an extension portion 2 and four elastic arms 3, wherein the fixed base 1 is in the shape of a runway as a whole, the two long sides of the fixed base 1 are respectively connected to the extension portion 2, the opposite two side sides of the extension portion 2 are respectively connected to the elastic arms 3, and the end of the elastic arm 3 away from the extension portion 2 is provided with a contact point 31.

[0030] When in use, the fixed base 1 of the spring sheet is assembled on the product housing / other main structure, and when the external device 4 presses down the spring sheet, the contact points 31 on the four elastic arms 3 all contact the external device 4, so that the spring sheet and the external device 4 are in elastic contact. In actual application, the hollow area of ​​the fixed base 1 can be used as a limit hole or a mounting hole, and the fixed base 1 is assembled and matched with the product housing / other main structure through the hollow area.

[0031] In order to facilitate the processing and manufacturing of the spring piece, it is preferred that the spring piece is an integrated structure that is processed and formed in one piece. Specifically, the spring piece can be an injection molded part, a metal structural part, or the like.

[0032] In this embodiment, the material of the spring piece is metal, that is, the spring piece of this embodiment can be used as a conductive spring piece that can play an electrical conductive role. When the material of the spring piece is metal, the spring piece can be an integrated structure formed by a piece of metal sheet through cutting, bending and other processes, and the metal sheet can be a steel sheet, a copper sheet, etc.

[0033] The optional connection between the extension portion 2 and the fixed base 1 is located in the middle of the long side of the fixed base 1. Preferably, the spring clip is a rotationally symmetrical structure. In detail, the spring clip of this embodiment is a rotationally symmetrical structure with the center of the fixed base 1 as the rotation center. The rotationally symmetrical spring clip can be pressed in a balanced manner, thereby achieving stable compression or conduction with the external device 4, thereby exerting good mechanical properties or signal transmission electrical properties.

[0034] In one embodiment, at least one of the extension portions 2 is located in the hollow area of ​​the fixed base 1. In this embodiment, the two extension portions 2 are both located outside the fixed base 1, and the extension portion 2 is coplanar with the fixed base 1, that is, the top surface of the fixed base 1 is coplanar with the top surface of the extension portion 2, and the bottom surface of the fixed base 1 is coplanar with the bottom surface of the extension portion 2.

[0035] Optionally, when looking down at the spring sheet, the projection area of ​​the elastic arm 3 is arc-shaped, which can reduce the waste of manufacturing consumables of the spring sheet and help control the manufacturing cost of the spring sheet.

[0036] The elastic arm 3 includes a connected arc-shaped arm 32 and a rising arm 33 . The arc-shaped arm 32 is connected to the extending portion 2 . The contact point 31 is disposed at one end of the rising arm 33 away from the arc-shaped arm 32 .

[0037] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A shrapnel, characterized in that: It includes a fixed base, an extension part and four elastic arms. The fixed base is in the shape of a runway as a whole. The two long sides of the fixed base are respectively connected to the extension parts, the opposite two sides of the extension parts are respectively connected to the elastic arms, and a contact point is provided at one end of the elastic arm away from the extension part.

2. The shrapnel according to claim 1, characterized in that: The material of the spring piece is metal, and the spring piece is an integrated structure formed by integral processing.

3. The shrapnel according to claim 1, characterized in that: The connection point between the extension part and the fixing base is located in the middle of the long side of the fixing base.

4. The shrapnel according to claim 3, characterized in that: The spring piece has a rotationally symmetrical structure.

5. The shrapnel according to claim 1, characterized in that: At least one of the extensions is located within the hollow region of the fixed base.

6. The shrapnel according to claim 1, characterized in that: The two extensions are both located outside the fixing base.

7. The shrapnel according to claim 1, characterized in that: When the spring sheet is viewed from above, the projection area of ​​the elastic arm is arc-shaped.

8. The shrapnel according to claim 1, characterized in that: The elastic arm comprises a connected arc-shaped arm and a rising arm, the arc-shaped arm is connected to the extending portion, and the contact point is arranged at one end of the rising arm away from the arc-shaped arm.

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