Spring washer with anti-packing function
By designing non-concentric spiral spring washer and adding reinforcement ribs to its body, the problem of "swelling circle" caused by radial forces of the spring washer is solved, and a stronger anti-loosening function is achieved.
Patent Information
- Application Number
- CN202420555001.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-21
AI Technical Summary
When the existing spring washer is subjected to radial force during installation, the inner diameter becomes larger, resulting in loss of anti-loosening function and a "swelling circle" phenomenon occurs.
A spring washer with a spiral direction is designed, the inner wall surface and the outer wall surface are not concentric, and width is increased near the notch position of the washer body, and symmetric reinforcement ribs are provided to enhance bearing capacity.
It effectively avoids the risk of spring washer deformed due to radial force, improves the ability of anti-swelling rings, so that it does not deform when it withstands greater radial force, and maintains the anti-loosening function.
Smart Images
Figure CN222185421U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of spring washers, in particular to a spring washer with an anti-expansion ring function. Background Art
[0002] In the ideal installation state of the bolt (nut), washer, spring washer assembly connection pair, during the process of tightening the bolt or nut, the spring washer should be mainly subjected to axial compression force and slowly compressed until it is flattened. However, due to various working conditions in the actual installation process, the spring washer is actually subjected to radial force in addition to axial compression force, and the radial force will increase the inner diameter of the spring washer, resulting in a larger notch size in the flattened state of the spring washer. If it is mild, it has not lost its anti-loosening function. However, in extreme cases, the spring washer will appear "C-shaped", commonly known as "expanding circle", and lose its anti-loosening function.
[0003] Therefore, it is necessary for us to improve such a structure to overcome the above-mentioned defects. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a spring washer with an anti-expansion ring function. The utility model is achieved through the following technical solutions:
[0005] A spring washer with an anti-expansion ring function comprises a washer body, a notch is arranged on the washer body, and the direction of the washer body is spiral. The washer body comprises an inner wall surface and an outer wall surface, and the inner wall surface and the outer wall surface are not concentric, and the width of the washer body gradually increases from the notch position.
[0006] In the above technical solution: the washer body is used to realize the basic function of the washer; the notch and the spiral washer body direction are used to realize the basic function of the spring washer, that is, to provide preload force through the elastic potential energy after compression; the inner wall surface and the outer wall surface are not concentric, and the width of the washer body increases from the notch, so that the washer body is wider at a position farther from the notch, so that the washer body can withstand a larger radial force without deformation, thereby avoiding the occurrence of ring expansion.
[0007] The utility model is further configured as follows: two reinforcing ribs are arranged on the inner wall surface, and the reinforcing ribs are fixedly arranged at positions of the gasket body close to the notch.
[0008] In the above technical solution: the reinforcing rib is used to further strengthen the strength of the gasket body at the notch position.
[0009] The utility model is further configured as follows: the two reinforcing ribs are symmetrically arranged.
[0010] In the above technical solution: the reinforcing ribs are symmetrically arranged so that the gasket body is more evenly stressed.
[0011] The utility model is further configured as follows: the median vertical plane of the inner wall surface of the reinforcing rib passes through the center of the inner wall surface, and the median vertical plane of the reinforcing rib also passes through the center of the outer wall surface.
[0012] In the above technical solution: the median vertical plane of the side wall of the reinforcing rib passes through the center of the inner wall surface, and the median vertical plane of the side wall of the reinforcing rib also passes through the center of the outer wall surface, so that when the gasket body is subjected to tension at the reinforcing rib, the tension will be borne by the inner wall surface of the reinforcing rib and evenly dispersed to both sides of the reinforcing rib.
[0013] The utility model discloses a spring washer with an anti-expansion ring function. Compared with the prior art:
[0014] 1. The utility model sets different inner side walls, so that the width of the side of the gasket body away from the notch is wider. When subjected to radial force, the force will be transmitted to the widest position to bear it, thereby avoiding the occurrence of ring expansion;
[0015] 2. The utility model further improves the radial force bearing capacity by setting the reinforcing ribs, thereby further improving the anti-expansion ring capability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a three-dimensional diagram of the utility model;
[0017] Figure 2 It is a top view of the utility model.
[0018] The corresponding component names represented by the numbers and letters in the figure are: 10-gasket body; 101-notch; 102-inner wall surface; 103-outer wall surface; 20-reinforcement rib. DETAILED DESCRIPTION
[0019] The following is a detailed description of an embodiment of the utility model. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.
[0020] like Figure 1-2As shown, the utility model proposes a spring washer with an anti-expansion ring function, including a washer body 10, a notch 101 is provided on the washer body 10, and the direction of the washer body 10 is spiral, the washer body 10 includes an inner wall surface 102 and an outer wall surface 103, and the inner wall surface 102 and the outer wall surface 103 are not concentric, and the width of the washer body 10 gradually increases from the position of the notch 101. Specifically, the projections of the inner wall surface 102 and the outer wall surface 103 along the central axis are not concentric; the washer body 10 is bilaterally symmetrical with the center of the notch 101 as the symmetry plane.
[0021] like Figure 1-2 As shown, the utility model proposes a spring washer with an anti-expansion ring function, wherein two reinforcing ribs 20 are arranged on the inner wall surface 102, and the reinforcing ribs 20 are fixedly arranged at a position of the washer body 10 close to the notch 101. The thickness of the reinforcing ribs 20 is not greater than the thickness of the washer body 10.
[0022] like Figure 1-2 As shown, the utility model provides a spring washer with an anti-expansion ring function, and the two reinforcing ribs 20 are symmetrically arranged. One side of the reinforcing rib 20 is completely in contact with the washer body 10; preferably, the reinforcing rib and the washer body 10 are formed by stamping at one time.
[0023] like Figure 1-2 As shown, the utility model proposes a spring washer with an anti-expansion ring function, the median vertical plane of the side wall of the reinforcing rib 20 passes through the center of the inner wall surface 102, and the median vertical plane of the side wall of the reinforcing rib 20 also passes through the center of the outer wall surface 103.
[0024] The working principle of the utility model is:
[0025] a) Pass the bolt through the connecting piece;
[0026] b) Sleeve the utility model onto the bolt;
[0027] c) Use nuts and bolts together and tighten them;
[0028] d) The washer body contacts the nut and is compressed;
[0029] e) Since the gasket is spiral, the gasket body is subjected to both axial force and radial force;
[0030] f) The radial force on the gasket body causes it to bend outwards;
[0031] g) The radial force is transmitted to the position of the gasket body farthest from the notch, where the width is wider and can withstand greater radial force.
[0032] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
Claims
1. A spring washer with an anti-expansion ring function, characterized in that: The invention comprises a gasket body (10), wherein a notch (101) is arranged on the gasket body (10), and the direction of the gasket body (10) is spiral, the gasket body (10) comprises an inner wall surface (102) and an outer wall surface (103), and the inner wall surface (102) and the outer wall surface (103) are not concentric, and the width of the gasket body (10) gradually increases from the position of the notch (101).
2. A spring washer with anti-expansion ring function according to claim 1, characterized in that: Two reinforcing ribs (20) are arranged on the inner wall surface (102), and the reinforcing ribs (20) are fixedly arranged at positions of the gasket body (10) close to the notch (101).
3. The spring washer with anti-expansion ring function according to claim 2, characterized in that: The two reinforcing ribs (20) are symmetrically arranged.
4. The spring washer with anti-expansion ring function according to claim 3, characterized in that: The mid-vertical plane of the side wall of the reinforcing rib (20) passes through the center of the inner wall surface (102), and the mid-vertical plane of the side wall of the reinforcing rib (20) also passes through the center of the outer wall surface (103).