Lock washer
By inserting elastic columns at the end of the washer shrapnel to form a secondary elastic structure, the problem of loss of shrapnel deformation ability is solved, ensuring that the washer maintains anti-loosening function for a long time.
Patent Information
- Application Number
- CN202422274641.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The shrapnel of the existing washer is prone to lose its recovery ability after being kept in a deformation state for a long time, resulting in failure of the anti-loosening function.
The jack is curled and formed at the end of the shrapnel of the washer and the elastic column with a coaxial line is embedded, and a secondary elastic structure is added to maintain the deformation force.
It realizes that the gasket can still maintain the anti-loosening effect after long-term use, and improves the reliability of use.
Smart Images
Figure CN223075981U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fasteners, and more specifically, it relates to a lock washer. Background Art
[0002] Elastic pieces protruding from the end face are circumferentially distributed on the end face of the washer, which can play a lock prevention role when in use for locking. However, since the elastic pieces in the locked state remain in a deformed state for a long time, they are prone to losing the ability to recover deformation. As a result, after the fastener is unscrewed, the elastic pieces on the washer cannot be deformed and reset, and the lock prevention function is lost, and the overall effect is not good. Accordingly, the utility model provides a lock washer. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art and provide a lock washer, which has the characteristics of novel structure and good lock prevention effect.
[0004] To solve the above technical problems, the purpose of the utility model is realized as follows: A lock washer according to the utility model includes a washer body, and a plurality of process square holes with equal adjacent interval angles are circumferentially distributed on the washer body. The process square hole has a first side hole edge and a second side hole edge. A elastic piece is arranged in the process square hole. One end of the elastic piece is connected to the first side hole edge, and the other end extends downward and toward the second side hole edge. The end of the elastic piece not connected to the first side hole edge has a curled edge that curls upward, and an insertion hole extending along the radial direction of the washer body is formed inside the curled edge. An elastic column arranged coaxially is embedded in the insertion hole.
[0005] The utility model is further arranged as: A convex part that extends into the insertion hole and presses the elastic column is pressed on the curled edge.
[0006] The utility model is further arranged as: The convex part is arranged at a relatively upper position.
[0007] The utility model is further arranged as: The elastic column is a rubber elastic column.
[0008] The utility model is further arranged as: The washer body is made of stainless steel material.
[0009] In summary, the utility model has the following beneficial effects: The lock washer according to the utility model forms an insertion hole by curling the end of the elastic piece, and an elastic column arranged coaxially is embedded in the insertion hole, endowing secondary elasticity. After long-term use, the washer can still maintain the deformation force, has long-lasting lock prevention, reliable use, perfect overall function, and strong practicability. Brief Description of the Drawings
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0011] Figure 2 It is a schematic structural view from another perspective of the present utility model;
[0012] Figure 3 It is a schematic partial structure view of the present utility model. Specific embodiments
[0013] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the following describes the preferred implementation schemes of the present utility model in combination with specific embodiments. However, it should be understood that these descriptions are only for further explaining the features and advantages of the present utility model, rather than limiting the patent requirements of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0014] The following further describes the present utility model in combination with the accompanying drawings and preferred embodiments.
[0015] Embodiment 1
[0016] Refer to Figure 1 and Figure 2 As shown, a lock washer involved in this embodiment includes a washer body 1. A plurality of process square holes 2 with equal adjacent interval angles are circumferentially arranged on the washer body 1. The process square holes 2 have a first side hole edge 21 and a second side hole edge 22. A spring piece 3 is arranged in the process square holes 2. One end of the spring piece 3 is connected to the first side hole edge 21, and the other end extends downward and toward the second side hole edge 22. The end of the spring piece 3 not connected to the first side hole edge has a turned-up edge 4 that curls upward. An insertion hole 5 extending along the radial direction of the washer body 1 is formed inside the turned-up edge 4. An elastic column 6 arranged coaxially is inserted in the insertion hole 5, and the elastic column 6 is a rubber elastic column.
[0017] Furthermore, the washer body 1 is made of stainless steel material.
[0018] In this implementation scheme, by inserting the elastic column 6 into the curled turned-up edge 4, the deformation reset stroke of the spring piece 3 is restricted, preventing the spring piece 3 from being flattened when the washer is pressed. The added elastic column 6 can endow the spring piece 3 with a secondary deformation force, so that after long-term use, the washer can still maintain the deformation force and has a long-lasting anti-loosening effect.
[0019] Embodiment 2
[0020] Refer to Figures 1 to 3 As shown, a lock washer involved in this embodiment is further provided, based on Embodiment 1, that a protrusion 7 pressing into the insertion hole and squeezing the elastic column is pressed on the turned-up edge 4; the protrusion 7 is arranged relatively upward.
[0021] In this embodiment, through the provision of the protrusion 7, the elastic column 6 that is used to clamp and insert into the insertion hole 5 plays a role in axially and circumferentially limiting the elastic column 6.
[0022] The lock washer involved in the present utility model forms an insertion hole by curling the end of the elastic piece, and an elastic column arranged coaxially therewith is embedded in the insertion hole, endowing secondary elasticity. After long-term use, the washer can still maintain the deformation force, has long-lasting anti-loosening property, reliable use, perfect overall function, and strong practicability.
[0023] Unless otherwise clearly specified and defined, in the present utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicating the orientation or positional relationship, it is based on the actually shown orientation or positional relationship. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present utility model are only used for exemplary illustration and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in combination with the embodiments and according to the specific circumstances.
[0024] Unless otherwise clearly specified and defined, in the present utility model, if there are terms such as "arrangement", "connection" and "connection", they 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 direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0025] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present application based on the concept of the present utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.
Claims
1. A lock washer, comprising a washer body, characterized in that: A plurality of process square holes with equal included angles between adjacent intervals are arranged circumferentially on the washer body. The process square holes have a first side hole edge and a second side hole edge. A shrapnel is arranged in the process square holes. One end of the shrapnel is connected to the first side hole edge, and the other end extends downward and toward the second side hole edge. The end of the shrapnel not connected to the first side hole edge has a curled flange upward. The inner side of the flange forms a jack extending along the radial direction of the washer body, and an elastic column arranged coaxially is embedded in the jack.
2. The lock washer according to claim 1, wherein: A convex portion that extends into the jack and presses the elastic column is pressed on the flange.
3. The lock washer according to claim 2, wherein: The convex portion is arranged upward.
4. The lock washer according to any one of claims 1-3, characterized in that: The elastic column is a rubber elastic column.
5. The lock washer according to claim 4, wherein: The washer body is made of stainless steel material.