Multilayer wave spring assembly resistant to dislocation deformation

Abstract

The utility model discloses a multi-layer wave spring assembly resistant to dislocation deformation, which comprises an elastic buckle and at least one wave spring unit, each wave spring unit comprises at least two wave spring base bodies which are overlapped up and down, the elastic buckle is arranged between the two wave spring base bodies which are overlapped up and down, and the elastic buckle is arranged between the two wave spring base bodies which are overlapped up and down. Wave crests and wave troughs are alternately arranged on the wave spring base body, first positioning grooves are formed in part of the wave troughs of the wave spring base body located on the upper layer, and second positioning grooves corresponding to the first positioning grooves are formed in part of the wave crests of the wave spring base body located on the lower layer. The elastic buckle comprises a positioning block, a first elastic piece, a second elastic piece, a third elastic piece and a fourth elastic piece, the positioning block is arranged in the first positioning groove and extends downwards into the second positioning groove, during assembling, positioning of the upper-layer wave spring base body and the lower-layer wave spring base body is achieved through the elastic buckle, operation is easy and convenient, and assembling is convenient. And the problems of dislocation of the wave spring base body and accidental deformation due to stress after dislocation are avoided.

Description

Technical Field

[0001] This utility model relates to the field of wave spring technology, and in particular to a multi-layer wave spring assembly that resists misalignment and deformation. Background Technology

[0002] Wave springs can be stacked in multiple layers, making high space utilization. They can save half the installation space compared to ordinary coil springs and provide more ideal elastic force in a smaller installation space.

[0003] The structure of stacked helical springs is unstable and prone to misalignment, leading to unexpected deformation under stress. To achieve series fixation of the upper and lower layers of wave springs, welding is commonly used. In the prior art, utility model patent application number 2022225593330 discloses a multi-layered wave spring that is not easily deformed. This spring achieves fixed-point fixation of the upper and lower layers by welding the bottom of the trough of the upper ring to the top of the crest of the adjacent lower ring, preventing misalignment during use. However, the rings are small, making fixed-point welding difficult, especially on-site. The number of layers can only be determined after debugging before stacking and welding can proceed, requiring a high level of welding skill from the operator. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer wave spring assembly that resists misalignment and deformation, eliminating the need for welding, enabling flexible assembly of multi-layer wave springs, and improving the ability to resist misalignment and deformation.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A multi-layer wave spring assembly resistant to misalignment and deformation includes: an elastic buckle and at least one wave spring unit. Each wave spring unit includes at least two wave spring bases stacked vertically. The elastic buckle is disposed between the two stacked wave spring bases. The wave spring bases are alternately provided with peaks and troughs. A first positioning groove is provided on a portion of the troughs of the upper wave spring base, and a second positioning groove corresponding to the first positioning groove is provided on a portion of the peaks of the lower wave spring base. The elastic buckle includes a positioning block, a first spring piece, a second spring piece, a third spring piece, and a fourth spring piece. The positioning block is disposed in the first positioning groove and extends downward into the second positioning groove. The first and second spring pieces are V-shaped and disposed on the top of the positioning block, extending to the inner walls of the troughs on both sides of the top of the first positioning groove. The third and fourth spring pieces are inverted V-shaped and disposed on the bottom of the positioning block, extending to the inner walls of the peaks on both sides of the bottom of the second positioning groove.

[0007] The positioning block, the first spring, the second spring, the third spring, and the fourth spring are integrated into one structure.

[0008] The width of the first positioning groove corresponds to the width of the second positioning groove, and the sum of the thicknesses of the third and fourth springs is less than the width of the first positioning groove.

[0009] The length of the first positioning groove in the radial direction of the wave spring base corresponds to the length of the positioning block.

[0010] The number of elastic buckles between the two superimposed wave spring bases is at least two.

[0011] The elastic buckle is also disposed between two superimposed wave spring units.

[0012] The beneficial effects of this utility model are as follows: A multi-layer wave spring assembly resistant to misalignment and deformation is specially designed with elastic buckles, and a first positioning groove and a second positioning groove are pre-machined on the wave spring base. During on-site assembly, the upper and lower wave spring bases are positioned by the elastic buckles, which is simple to operate and avoids the problem of misalignment of the wave spring base and unexpected deformation under force after misalignment, thus improving the reliability of use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 yes Figure 1 Schematic diagram of the structure of the flexible snap fastener;

[0015] Figure 3 yes Figure 2 A schematic diagram of the structure of the third and fourth springs after their downward elastic deformation. Detailed Implementation

[0016] The following is combined Figures 1-3 The technical solution of this utility model will be further illustrated through specific embodiments.

[0017] like Figure 1 The multi-layer wave spring assembly for resisting misalignment and deformation shown includes: an elastic snap 200 and at least one wave spring unit 100. Each wave spring unit includes at least two wave spring bases stacked vertically. In this embodiment, two wave spring bases stacked vertically are used as an example for illustration, including a wave spring base 110 located on the upper layer and a wave spring base 120 located on the lower layer.

[0018] The elastic buckle 200 is placed between two superimposed wave spring bases. The wave spring bases are alternately provided with peaks 122 and valleys 112. In order to realize the series connection of the two superimposed wave spring bases, the valleys 113 of the upper wave spring base 110 need to correspond one-to-one with the peaks 122 on the lower wave spring base 120 and make contact.

[0019] like Figure 1 As shown, a first positioning groove 111 is provided on a portion of the trough 113 of the upper wave spring base 110, and a second positioning groove 121 corresponding to the first positioning groove 111 is provided on a portion of the peak of the lower wave spring base 120. In this embodiment, the width of the first positioning groove 111 corresponds to the width of the second positioning groove 121. For ease of processing and assembly, the dimensions of the first positioning groove 111 and the second positioning groove 121 can be exactly the same.

[0020] like Figure 2 As shown, the elastic buckle 200 includes a positioning block 210, a first spring piece 220, a second spring piece 230, a third spring piece 240, and a fourth spring piece 250. The positioning block 210 is disposed in the first positioning groove 111 and extends downward into the second positioning groove 121. The positioning block 210 is used to position the two stacked wave spring bases. In this embodiment, the number of elastic buckles 200 between the two stacked wave spring bases is at least two, that is, at least two positioning blocks 210 are used to position the two stacked wave spring bases to avoid misalignment and accidental deformation under force.

[0021] In order to improve the relative positional stability of the two superimposed wave spring bases, the length of the first positioning groove 111 in the radial direction of the wave spring base corresponds to the length of the positioning block 210. After the positioning block 210 is inserted into the first positioning groove 111 and the second positioning groove 121, radial misalignment of the two superimposed wave spring bases can be avoided.

[0022] In this embodiment, the first spring piece 220 and the second spring piece 230 are arranged in a V-shape on the top of the positioning block 210 and extend to the inner walls of the troughs on both sides of the top of the first positioning groove 111, as shown below. Figure 1 As shown, the first spring piece 220 and the second spring piece 230 are in contact with the inner wall of the trough to prevent the positioning block 210 from falling off.

[0023] The third spring plate 240 and the fourth spring plate 250 are arranged in an inverted V shape at the bottom of the positioning block 210 and extend to the inner wall of the wave crest on both sides of the bottom of the second positioning groove 121. The positioning block 210 is limited to move upward by contact between the third spring plate 240 and the fourth spring plate 250 and the inner wall of the wave crest, which improves the stability of the positioning block 210 and avoids the problem of falling off.

[0024] like Figure 2 As shown, the positioning block 210, the first spring piece 220, the second spring piece 230, the third spring piece 240, and the fourth spring piece 250 adopt an integrated structure and can be made of plastic. During installation, the third spring piece 240 and the fourth spring piece 250 can be pressed first, such as... Figure 3 As shown, this allows the third spring piece 240 and the fourth spring piece 250 to fold down, simplifying the operation. In this embodiment, the sum of the thicknesses of the third spring piece 240 and the fourth spring piece 250 is less than the width of the first positioning groove 111, so that after folding down, the third spring piece 240 and the fourth spring piece 250 insert into the first positioning groove 111 and the second positioning groove 121. After inserting into the first positioning groove 111 and the second positioning groove 121, the third spring piece 240 and the fourth spring piece 250 elastically reset, as shown. Figure 1 As shown, the positioning block 210 is limited, which facilitates on-site construction.

[0025] In addition, if multiple wave spring units 100 are stacked, the elastic buckle 200 is also set between two stacked wave spring units 100 to limit the two wave spring bases at the connection of the two adjacent wave spring units 100, so as to avoid misalignment of the two adjacent wave spring units 100.

[0026] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A multi-layer wave spring assembly resistant to misalignment deformation, characterized in that, include: The device includes an elastic buckle and at least one wave spring unit. Each wave spring unit comprises at least two stacked wave spring bases. The elastic buckle is disposed between the two stacked wave spring bases. The wave spring bases are alternately provided with peaks and troughs. A first positioning groove is provided on a portion of the troughs of the upper wave spring base, and a second positioning groove corresponding to the first positioning groove is provided on a portion of the peaks of the lower wave spring base. The elastic buckle includes a positioning block, a first spring piece, a second spring piece, a third spring piece, and a fourth spring piece. The positioning block is disposed in the first positioning groove and extends downward into the second positioning groove. The first and second spring pieces are V-shaped and disposed on the top of the positioning block, extending to the inner walls of the troughs on both sides of the top of the first positioning groove. The third and fourth spring pieces are inverted V-shaped and disposed at the bottom of the positioning block, extending to the inner walls of the peaks on both sides of the bottom of the second positioning groove.

2. The multi-layer wave spring assembly for resisting misalignment deformation according to claim 1, characterized in that, The positioning block, the first spring, the second spring, the third spring, and the fourth spring adopt an integrated structure.

3. The multi-layer wave spring assembly for resisting misalignment deformation according to claim 1, characterized in that, The width of the first positioning groove corresponds to the width of the second positioning groove, and the sum of the thicknesses of the third and fourth springs is less than the width of the first positioning groove.

4. The multi-layer wave spring assembly for resisting misalignment deformation according to claim 1, characterized in that, The length of the first positioning groove in the radial direction of the wave spring base corresponds to the length of the positioning block.

5. The multi-layer wave spring assembly for resisting misalignment deformation according to claim 1, characterized in that, The number of elastic buckles between the two superimposed wave spring bases is at least two.

6. The multi-layer wave spring assembly for resisting misalignment deformation according to claim 1, characterized in that, The elastic buckle is also disposed between two superimposed wave spring units.

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