Cross force arm elastic piece

Abstract

The utility model discloses a crossed force arm elastic sheet, which is characterized by comprising a base body, a first force arm and a second force arm, wherein the first force arm is formed by bending and extending from a first end of the base body to a second end of the base body; the second force arm is formed by bending and extending from the second end of the base body to the first end of the base body; the first force arm and the second force arm are located on the same side of the base body and are arranged in a crossed mode. A first contact position is formed on the surface, opposite to the base body, of the free end of the first force arm, and a second contact position is formed on the surface, opposite to the base body, of the free end of the second force arm; the first contact position and the second contact position are located on the same preset plane. According to the utility model, two contact positions are designed, so that the contact reliability of the elastic sheet is remarkably improved, the overall structure is small and exquisite, the space is saved, and the actual application requirements of the elastic sheet are effectively met.

Description

Technical Field

[0001] This utility model relates to the field of metal spring technology, and in particular to a cross lever arm spring. Background Technology

[0002] Spring contacts are widely used in electronic devices to transmit signals. In existing technologies, some spring contacts are connected to the object through only a single contact point. This design is prone to poor contact or detachment when subjected to external forces or vibrations, resulting in unreliable contact. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to propose a cross-arm spring sheet, which significantly improves the reliability of the spring sheet during contact by designing two contact positions. Furthermore, the overall structure is compact, saves space, and effectively meets the practical application needs of the spring sheet.

[0004] The technical solution of this utility model is implemented as follows: a cross lever spring includes a base, a first lever formed by bending and extending from a first end to a second end of the base, and a second lever formed by bending and extending from a second end to a first end of the base; the first lever and the second lever are located on the same side of the base and are arranged to cross each other; a first contact position is formed on the surface of the free end of the first lever facing away from the base, and a second contact position is formed on the surface of the free end of the second lever facing away from the base; the first contact position and the second contact position are on the same preset plane.

[0005] Furthermore, both the first lever arm and the second lever arm include a main body segment extending from the bending position and a narrowing segment extending from the main body segment to the free end with a gradually narrowing width; a clearance space is formed on the side of the narrowing segment; the free end of one of the first lever arm and the second lever arm extends into the clearance space of the other to form an intersecting arrangement.

[0006] Furthermore, a first arc-shaped convex surface is formed on the first lever arm at the first contact position; and a second arc-shaped convex surface is formed on the second lever arm at the second contact position.

[0007] Furthermore, the substrate includes a base plate, first side plates bent from both ends of the base plate on the same side, and second side plates bent and extending from the free ends of the two first side plates in opposite directions; the first lever arm is connected to the free end of the second side plate on the first side, and the second lever arm is connected to the free end of the second side plate on the second side.

[0008] Furthermore, a protrusion is provided on the side of the base plate facing away from the first and second lever arms.

[0009] Furthermore, the protrusion is formed by stamping on the base plate.

[0010] Furthermore, the spring is integrally formed from metal material.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] This invention utilizes the combined use of a first lever arm and a second lever arm. When both lever arms are pressed down by the contact object, they simultaneously contact the first contact position on the first lever arm and the second contact position on the second lever arm. Furthermore, the first and second lever arms do not interfere with each other when pressed down simultaneously, each forming contact independently. This combination significantly improves the reliability of the spring contact. The cross arrangement of the first and second lever arms reduces the overall structural size, resulting in a compact structure that saves space and effectively meets the practical application requirements of the spring. Attached Figure Description

[0013] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 for Figure 1 Main view structural diagram;

[0016] Figure 3 for Figure 2 A top view structural diagram;

[0017] Wherein: 1. Base; 11. Bottom plate; 12. First side plate; 13. Second side plate; 14. Protrusion; 2. First lever arm; 21. First contact position; 3. Second lever arm; 31. Second contact position; 4. Main body section; 5. Narrowing section; 6. Leaving space. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0019] like Figure 1-3The diagram shows a cross-arm spring sheet according to this embodiment, which is integrally formed from metal material. The spring sheet includes a base 1, a first arm 2 formed by bending from a first end to a second end of the base 1, and a second arm 3 formed by bending from a second end to a first end of the base 1. The first and second ends of the base 1 are opposite ends along its length. The base 1 includes a base plate 11, first side plates 12 bent from both ends of the base plate 11 on the same side, and second side plates 13 bent from the free ends of the two first side plates 12 in opposite directions. The length direction of the base plate 11 is the same as the length direction of the base 1. The first side plates 12 are bent and connected to the two ends of the base plate 11 along its length, and the bending angle between the first side plates 12 and the base plate 11 is preferably 90°. The bending angle between the second side plates 13 and the first side plates 12 is also preferably 90°. Through the above structural design, the free ends of the two second side plates 13 are respectively the first and second ends of the aforementioned base 1. The first side plate 12 and the second side plate 13 are bent to give the base 1 a designed resilience. The first lever arm 2 is bent and connected to the free end of the second side plate 13 on the first side to give the first lever arm 2 a resilience, and the bending angle between the first lever arm 2 and the second side plate 13 is greater than 0° and less than 90°. Similarly, the second lever arm 3 is bent and connected to the free end of the second side plate 13 on the second side to give the second lever arm 3 a resilience, and the bending angle between the first lever arm 2 and the second side plate 13 is greater than 0° and less than 90°.

[0020] After the bending and forming process described above, the first lever arm 2 and the second lever arm 3 are located on the same side of the base 1 and are arranged intersectingly. In the specific structural design, both the first lever arm 2 and the second lever arm 3 include a main body segment 4 extending from their respective bending positions and a narrowing segment 5 extending from the main body segment 4 towards the free end, with its width gradually decreasing. The width of the main body segment 4 is consistent with the width of the base plate 11, the first side plate 12, and the second side plate 13. The width of the narrowing segment 5 is smaller than the width of the base plate 11, the first side plate 12, and the second side plate 13. This structural design creates a clearance space 6 on the side of the narrowing segment 5 of the first lever arm 2 and the narrowing segment 5 of the second lever arm 3. The width of this clearance space 6 is adapted to the width of the narrowing segment 5. Furthermore, the narrowing segment 5 of the first lever arm 2 and the clearance space 6 of the second lever arm 3 correspond to each other, and the narrowing segment 5 of the second lever arm 3 and the clearance space 6 of the first lever arm 2 also correspond to each other. When the first lever arm 2 and the second lever arm 3 are bent, the free end of one of them extends into the clearance space 6 of the other, forming a cross arrangement. Since the width of the main body segment 4 is not changed, the connection strength, elasticity, and durability of the first lever arm 2 and the second lever arm 3 at the bending position remain unchanged.

[0021] A first contact position 21 is formed on the surface of the free end of the first lever arm 2 facing away from the base 1, and a second contact position 31 is formed on the surface of the free end of the second lever arm 3 facing away from the base 1. Both the first contact position 21 and the second contact position 31 are located on the aforementioned narrowing section 5. Through a reasonable structural design, the first contact position 21 and the second contact position 31 are on the same preset plane, that is, the first contact position 21 and the second contact position 31 are at the same height relative to the base 1, allowing components and other contact objects to simultaneously contact the first contact position 21 and the second contact position 31. In this embodiment, the first lever arm 2 is bent at the first contact position 21, forming a first arc-shaped convex surface on the first lever arm 2 at the first contact position 21 to improve the contact effect. The second lever arm 3 is bent at the second contact position 31, forming a second arc-shaped convex surface on the second lever arm 3 at the second contact position 31 to improve the contact effect.

[0022] In this embodiment, a protrusion 14 is machined on the side of the base plate 11 facing away from the first lever arm 2 and the second lever arm 3. This protrusion 14 is formed by stamping on the base plate 11. The protrusion 14 has a cylindrical shape. This protrusion 14 increases the contact area, allowing the overall structure to fully contact the object being contacted.

[0023] In practical use, when the first lever arm 2 and the second lever arm 3 are pressed down by the contact object, the contact object can simultaneously contact the first contact position 21 on the first lever arm 2 and the second contact position 31 on the second lever arm 3. When the first lever arm 2 and the second lever arm 3 are pressed down simultaneously, they do not interfere with each other and each forms contact independently. In the above method, the reliability of the contact spring can be significantly improved, and the cross arrangement of the first lever arm 2 and the second lever arm 3 can reduce the overall structural size, making the overall structure compact, saving space, and effectively meeting the actual application requirements of the contact spring.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cross-arm flechette, characterized by: The base, the first force arm formed by bending the base from the first end to the second end, and the second force arm formed by bending the base from the second end to the first end; the first force arm and the second force arm are located on the same side of the base and are arranged in cross.

2. A cross-arm flechette according to claim 1, wherein: The first force arm and the second force arm each include a main body segment extending from the bending position, and a narrowing segment gradually narrowing in width extending from the main body segment to the free end; the side of the narrowing segment forms a space for giving way; the free end on one of the two first force arms and the second force arms extends into the space for giving way on the other one to form the cross arrangement.

3. A cross-arm flechette according to claim 1, wherein: The first arc-shaped convex surface is formed on the first force arm at the first contact position; and the second arc-shaped convex surface is formed on the second force arm at the second contact position.

4. A cross-arm flechette according to claim 1, wherein: The base includes a bottom plate, a first side plate bent from the same side of the two ends of the bottom plate, and a second side plate bent from the free end of the two first side plates in opposite directions; the first force arm is connected to the free end of the second side plate on the first side, and the second force arm is connected to the free end of the second side plate on the second side.

5. A cross-arm flechette according to claim 4, wherein: The protruding part is formed on the side of the bottom plate away from the first force arm and the second force arm.

6. A cross-arm flechette according to claim 5, wherein: The protruding part is formed on the bottom plate by stamping.

7. A cross-arm flechette according to claim 1 wherein: The elastic sheet is integrally formed of a metal material.

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