Key spring

Abstract

The utility model discloses a button spring in the spring field, which comprises a spring single body, an upper gasket and a lower gasket, one end of the spring single body is connected with the upper gasket, the other end of the spring single body is connected with the lower gasket, the upper gasket and the lower gasket are arranged in parallel, the bottom of the upper gasket is provided with an upper assembling groove used for installing the spring single body, and the lower gasket is provided with a lower assembling groove used for installing the spring single body. The top of the lower gasket is provided with a lower assembling groove used for installing a spring single body, the upper assembling groove and the lower assembling groove are each provided with a locking piece used for locking the spring single body, at least two upper hanging rings are installed at the bottom of the upper gasket, and at least two lower hanging rings matched with the upper hanging rings are installed at the top of the lower gasket. The upper hanging ring and the lower hanging ring are both distributed on the periphery of the spring single body, and one end of the upper hanging ring and one end of the lower hanging ring are pulled through a pull wire. When the spring single body is compressed and reset, the pull wire between the upper gasket and the lower gasket can balance the force around the spring single body, it is also ensured that the upper gasket is horizontally aligned after the spring single body is reset, and the effect after the spring single body is reset is improved.

Description

Technical Field

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

[0002] The key switch is the core component of the control equipment with buttons. Its comfort and reliability play a vital role in improving the combat performance of the weapon system. The key switch is to achieve the purpose of control by pressing the button on the operation panel to make the two poles of the button conductive, thereby realizing the signal transmission of the key switch.

[0003] At present, spring-type buttons are commonly used, that is, the button is reset by a spring after being pressed. The button spring of this structure is prone to tilting when the button is reset due to the certain softness of the spring itself. In addition, the spring is prone to deformation after long-term use, so the button is prone to tilt after being reset. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technical solutions, the utility model provides a key spring, which can effectively solve the technical problem of the current key spring being unbalanced in resetting after being pressed.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A key spring comprises a spring unit, an upper gasket and a lower gasket, wherein one end of the spring unit is connected to the upper gasket, and the other end of the spring unit is connected to the lower gasket, the upper gasket and the lower gasket are arranged in parallel, the bottom of the upper gasket is provided with an upper assembly groove for installing the spring unit, the top of the lower gasket is provided with a lower assembly groove for installing the spring unit, the upper assembly groove and the lower assembly groove are evenly provided with locking plates for locking the spring unit, at least two upper hanging rings are installed at the bottom of the upper gasket, and at least two lower hanging rings matched with the upper hanging rings are installed at the top of the lower gasket, the upper hanging rings and the lower hanging rings are distributed on the periphery of the spring unit, and one end of the upper hanging ring and the lower hanging ring are pulled by a pulling line to keep the upper gasket and the lower gasket parallel.

[0007] Furthermore, a bump protruding upward is integrally connected to the top of the upper gasket, and the bump is provided with a screw hole for installation.

[0008] Furthermore, the lower gasket is provided with holes for locking and fixing, and the holes are staggered with the lower hanging ring.

[0009] Furthermore, one end of the locking plate is welded and fixed in the upper assembly groove / lower assembly groove, and the other end of the locking plate is bent and used to lock the spring unit.

[0010] Furthermore, the upper gasket, the spring unit and the lower gasket are coaxially arranged, and the outer diameter of the lower gasket is larger than that of the upper gasket.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model connects an upper gasket and a lower gasket to the top and bottom of the spring monomer respectively, and a traction line is used to pull between the upper gasket and the lower gasket. When the spring monomer is compressed and reset, the traction line between the upper gasket and the lower gasket can balance the force around the spring monomer, and also ensures that the upper gasket remains horizontally aligned after the spring monomer is reset, thereby improving the effect after the spring monomer is reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structural connection of an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the bottom structure of the upper gasket in an embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the top structure of the lower gasket of the embodiment of the utility model;

[0016] Numbers in the figure:

[0017] 1-spring unit, 2-upper gasket, 3-lower gasket, 4-upper assembly groove, 5-lower assembly groove, 6-locking plate, 7-upper hanging ring, 8-lower hanging ring, 9-traction line, 10-bump, 11-screw hole, 12-hole position. DETAILED DESCRIPTION

[0018] 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 in 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.

[0019] like Figures 1-3 As shown, the technical solution provides a key spring, which is mainly used for the elastic component inside the key switch, and its structure mainly includes a spring unit 1, an upper gasket 2 and a lower gasket 3, wherein one end of the spring unit 1 is connected to the upper gasket 2, and the other end of the spring unit 1 is connected to the lower gasket 3, the upper gasket 2 and the lower gasket 3 are arranged in parallel, and the upper gasket 2, the spring unit 1 and the lower gasket 3 are arranged coaxially. In terms of use, one end of the upper gasket 2 is usually used to connect the housing of the key switch, and one end of the lower gasket 3 is usually used to fix the position of the key.

[0020] When the upper gasket 2 is connected to the spring monomer 1, an upper assembly groove 4 for installing the spring monomer 1 is provided at the bottom of the upper gasket 2. One end of the spring monomer 1 is directly fixed inside the upper assembly groove 4 and is locked and fixed by bending the lock piece 6. Similarly, when the lower gasket 3 is connected to the spring monomer 1, a lower assembly groove 5 for installing the spring monomer 1 is provided at the top of the lower gasket 3. The other end of the spring monomer 1 is directly fixed inside the lower assembly groove 5 and is locked and fixed by bending the lock piece 6.

[0021] For the lock piece 6 used to lock the spring monomer 1, one end of the lock piece 6 is fixed inside the upper assembly groove 4 / lower assembly groove 5 by welding. The welding position is located inside the spring monomer 1. The other end of the lock piece 6 is bent and covers and fixes the position at one end inside the assembly for locking and fixing the spring monomer 1. The operation is simple and convenient for maintenance.

[0022] Between the upper gasket 2 and the lower gasket 3, in addition to being connected by the spring monomer 1 at the center, they are also traction-connected by traction lines 9 around the perimeter to strengthen the balance between the upper gasket 2 and the lower gasket 3 and to keep the upper gasket 2 and the lower gasket 3 parallel. When pulling the traction line 9, three upper hanging rings 7 are installed at the bottom of the upper gasket 2. Correspondingly, three lower hanging rings 8 paired with the upper hanging rings 7 are installed at the top of the lower gasket 3. The upper hanging rings 7 and the lower hanging rings 8 are both distributed on the periphery of the spring monomer 1. One end of the upper hanging ring 7 and the lower hanging ring 8 is traction-connected by the traction line 9. To improve the balance of the spring monomer 1 and increase the area of the bottom end of the spring monomer 1 fixed to improve firmness, the outer diameter of the lower gasket 3 is larger than the outer diameter of the upper gasket 2. Therefore, the distance between the lower hanging ring 8 and the spring monomer 1 is greater than the distance between the upper hanging ring 7 and the spring monomer 1, so that the traction line 9 pulled is inclined outward from top to bottom.

[0023] During use, a convex block 10 protruding upward is integrally connected to the top of the upper gasket 2. The structure of the convex block 2 is mainly convenient for connecting with the housing of the button. A screw hole 11 for installation is provided at the top of the convex block 10, and the housing of the button can be fixed by installing a screw in the screw hole 11. In addition, the lower gasket 3 is used to be fixed at the position where the button is installed. The lower gasket 3 is provided with three hole positions 12 for locking and fixing. Among them, the hole positions 12 and the lower hanging rings 8 are staggered.

[0024] Compared with the traditional technology, in this technical solution, the upper gasket 2 and the lower gasket 3 are respectively connected to the top and bottom of the spring monomer 1, and are traction-connected by the traction line 9 between the upper gasket 2 and the lower gasket 3. When the spring monomer 1 compresses and resets, the traction line 9 between the upper gasket 2 and the lower gasket 3 can balance the force around the spring monomer 1, and also ensures that the upper gasket 2 remains horizontally aligned after the spring monomer 1 resets, improving the effect after the spring monomer 1 resets.

[0025] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A key spring, comprising a spring unit, an upper gasket and a lower gasket, one end of the spring unit is connected to the upper gasket, and the other end of the spring unit is connected to the lower gasket, characterized in that: The upper gasket and the lower gasket are arranged in parallel, the bottom of the upper gasket is provided with an upper assembly groove for installing the spring monomer, the top of the lower gasket is provided with a lower assembly groove for installing the spring monomer, the upper assembly groove and the lower assembly groove are evenly provided with locking plates for locking the spring monomer, at least two upper hanging rings are installed at the bottom of the upper gasket, and at least two lower hanging rings paired with the upper hanging rings are installed at the top of the lower gasket, the upper hanging rings and the lower hanging rings are distributed on the periphery of the spring monomer, and one end of the upper hanging ring and the lower hanging ring are pulled by a traction line to keep the upper gasket and the lower gasket parallel.

2. The key spring according to claim 1, wherein: The top of the upper gasket is integrally connected with a convex block protruding upward, and the convex block is provided with a screw hole for installation.

3. A key spring according to claim 1, wherein: The lower gasket is provided with holes for locking and fixing, and the holes are staggered with the lower hanging ring.

4. A key spring according to claim 1, characterized in that: One end of the locking plate is welded and fixed in the upper assembly groove / lower assembly groove, and the other end of the locking plate is bent and used to lock the spring unit.

5. A key spring according to any one of claims 1-4, characterized in that: The upper gasket, the spring unit and the lower gasket are coaxially arranged, and the outer diameter of the lower gasket is larger than that of the upper gasket.

Images