Lock washer assembly

Abstract

The utility model discloses a kind of anti-loose combination gaskets, including the upper gasket and lower gasket of being coaxially arranged;The outer side of the upper gasket is surrounded by several upper locking teeth extending obliquely downwards, the lower gasket is provided with the lower perforation corresponding to all upper locking teeth one by one, and each upper locking tooth is embedded in a lower perforation;The inner side of the lower gasket is surrounded by several lower locking teeth extending obliquely upwards, the upper gasket is provided with the upper perforation corresponding to all lower locking teeth one by one, and each lower locking tooth is embedded in an upper perforation;The elastic member of upper end connection upper gasket, lower end connection lower gasket is equipped between the upper gasket and lower gasket;The upper locking tooth under natural state does not extend lower end orifice of lower perforation, and the lower locking tooth under natural state does not extend upper end orifice of upper perforation.The combination gasket has the characteristics of reliable anti-loose, easy to install, the overall function is perfect, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and more specifically, to an anti-loosening combination washer. Background Technology

[0002] In the field of mechanical connections, fasteners such as bolts and nuts often loosen due to vibration, impact, or temperature changes. Traditional flat washers and spring washers rely solely on friction to prevent loosening, which is prone to failure after long-term use, leading to displacement of equipment components, abnormal noise, or even safety accidents. Especially in high-frequency vibration scenarios such as automobiles and construction machinery, the reliability of existing washers in preventing loosening is insufficient to meet the requirements of long-term stable operation. There is an urgent need for a washer solution with a more durable anti-loosening effect and a more stable structure. Accordingly, this utility model proposes an anti-loosening combination washer. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a non-loosening combination washer, which has the characteristics of reliable non-loosening and convenient installation.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is as follows: The anti-loosening combination washer of this utility model includes an upper washer and a lower washer arranged on the same axis. The outer surface of the upper washer is provided with several upper locking teeth that extend obliquely downwards. The lower washer is provided with a lower through hole that corresponds to each of the upper locking teeth. Each upper locking tooth is embedded in a lower through hole. The inner side of the lower washer is provided with several downward locking teeth that extend obliquely upward. The upper washer is provided with an upper through hole that corresponds to each of the downward locking teeth. Each downward locking tooth is embedded in an upper through hole. An elastic element is provided between the upper washer and the lower washer, with the upper end connected to the upper washer and the lower end connected to the lower washer; In its natural state, the upper locking tooth does not protrude from the lower end of the lower through hole, and the lower locking tooth does not protrude from the upper end of the upper through hole.

[0005] The present invention is further configured such that the included angle between two adjacent upper locking teeth is equal.

[0006] The present invention is further configured such that the included angle between two adjacent lower locking teeth is equal.

[0007] The present invention is further configured such that: the upper locking tooth and the upper washer are integral; the lower locking tooth and the lower washer are integral.

[0008] The present invention is further configured such that: the elastic element is a rubber ring; the elastic element is bonded to both the upper washer and the lower washer.

[0009] In summary, this utility model has the following beneficial effects: 1. The interlocking teeth of the upper and lower washers are staggered and extended to form a mechanical anti-loosening structure, which gets rid of the limitations of traditional friction anti-loosening and is not easy to loosen due to long-term vibration resistance.

[0010] 2. The rubber ring connects the upper and lower washers, which can accommodate installation deviations without increasing the installation difficulty and is compatible with conventional bolt and nut connection scenarios. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram illustrating the structure of the upper washer of this utility model; Figure 3 This is a schematic diagram illustrating the structure of the lower washer of this utility model; Figure 4 This is a structural schematic diagram illustrating the elastic element of this utility model. Detailed Implementation

[0012] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0013] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0014] Example 1 See Figures 1 to 4 As shown, the anti-loosening combination washer involved in this embodiment includes an upper washer 100 and a lower washer 200 arranged coaxially. The outer surface of the upper washer 100 is provided with a number of upper locking teeth 101 extending obliquely downward. The lower washer 200 is provided with a lower through hole 201 corresponding to all the upper locking teeth. Each upper locking tooth is embedded in a lower through hole. The inner side of the lower washer 200 is provided with a plurality of lower locking teeth 202 extending obliquely upward. The upper washer 100 is provided with an upper through hole 102 corresponding to all the lower locking teeth. Each lower locking tooth is embedded in an upper through hole. An elastic element 300, which is a rubber ring, is provided between the upper washer 100 and the lower washer 200, with its upper end connected to the upper washer and its lower end connected to the lower washer. The elastic element 300 is bonded to both the upper washer 100 and the lower washer 200.

[0015] In its natural state, the upper locking tooth does not protrude from the lower end of the lower through hole, and the lower locking tooth does not protrude from the upper end of the upper through hole.

[0016] Furthermore, the included angle between two adjacent upper locking teeth 101 is equal; the included angle between two adjacent lower locking teeth 202 is equal.

[0017] Furthermore, the upper locking tooth 101 is integral with the upper washer 100; the lower locking tooth 202 is integral with the lower washer 200.

[0018] In this embodiment, a rubber ring is fixed between the lower end of the upper washer and the upper end of the lower washer to form a complete anti-loosening combination washer. In use, the washer is fitted onto the bolt and placed between the bolt head (or nut) and the connected parts. The bolt (or nut) is then tightened. As the bolt (or nut) applies force, the upper and lower washers are compressed and move closer to each other. The upper locking teeth of the upper washer extend obliquely downward beyond the lower end face of the lower washer, and the lower locking teeth of the lower washer extend obliquely upward beyond the upper end face of the upper washer. The two are misaligned and interlocked to form a mechanical lock. At the same time, the rubber ring is compressed and generates an elastic reaction force to assist in anti-slip, ultimately achieving the anti-loosening and fixing of the bolt connection.

[0019] The anti-loosening combination washer involved in this utility model has a mechanical anti-loosening structure formed by the interlocking teeth of the upper and lower washers. It gets rid of the limitations of traditional friction anti-loosening and is not easy to loosen due to long-term vibration resistance. In addition, the rubber ring connects the upper and lower washers, which can adapt to installation deviations without increasing the installation difficulty. It can be compatible with conventional bolt and nut connection scenarios. The overall function is complete and the practicality is strong.

[0020] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0021] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A type of anti-loosening combination washer, characterized in that, Includes an upper washer and a lower washer arranged coaxially; The outer surface of the upper washer is provided with several upper locking teeth that extend obliquely downwards. The lower washer is provided with a lower through hole that corresponds to each of the upper locking teeth. Each upper locking tooth is embedded in a lower through hole. The inner side of the lower washer is provided with several downward locking teeth that extend obliquely upward. The upper washer is provided with an upper through hole that corresponds to each of the downward locking teeth. Each downward locking tooth is embedded in an upper through hole. An elastic element is provided between the upper washer and the lower washer, with the upper end connected to the upper washer and the lower end connected to the lower washer; In its natural state, the upper locking tooth does not protrude from the lower end of the lower through hole, and the lower locking tooth does not protrude from the upper end of the upper through hole.

2. The anti-loosening combination washer according to claim 1, characterized in that, The included angle between two adjacent upper locking teeth is equal.

3. The anti-loosening combination washer according to claim 2, characterized in that, The included angle between two adjacent lower locking teeth is equal.

4. The anti-loosening combination washer according to any one of claims 1-3, characterized in that, The upper locking tooth and the upper washer are integrated; the lower locking tooth and the lower washer are integrated.

5. The anti-loosening combination washer according to claim 1, characterized in that, The elastic element is a rubber ring; the elastic element is bonded to both the upper and lower washers.

Images