Check washer set

Abstract

The utility model provides a non-return gasket group, and aims to solve the technical problem that a binding post using a spring gasket to prevent loosening still looses under high-frequency vibration and complex working conditions at present. The check washer set comprises a first washer which is of an annular structure, and first oblique teeth are arranged on one side face of the first washer; the second gasket is also of an annular structure, the inner size and the outer size of the second gasket are the same as those of the first gasket, and second oblique teeth are arranged on one side face of the second gasket; wherein the first helical teeth on the first gasket are matched with the second helical teeth on the second gasket, and the first helical teeth and the second helical teeth are meshed with each other. The check gasket group is provided with the first gasket and the second gasket, the contact surfaces of the first gasket and the second gasket are respectively provided with the first helical teeth and the second helical teeth, then the first gasket and the second gasket are arranged on the binding post, and the first helical teeth are matched with the second helical teeth, so that the check gasket group is formed. The purpose of preventing the fastener from loosening under high-frequency vibration and complex working conditions is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gasket, in particular to a check gasket set. BACKGROUND

[0002] In the process of using the vibration motor, the terminal post is a key component for connecting the vibration motor with external circuit, and its fastening property and anti-loosening property are particularly important. In order to prevent the terminal post bolt from loosening due to vibration, a gasket is installed on the terminal post bolt.

[0003] In the prior art, the gasket installed on the terminal post of the vibration motor is generally a spring washer, which prevents loosening by elastic deformation and increase of friction. However, under high-frequency vibration and complex working conditions, the fastener (such as a nut) using the spring washer to prevent loosening is still prone to loosening, which still leads to poor circuit contact, signal interruption and even equipment failure. SUMMARY

[0004] In view of the technical problem of loosening of the terminal post using the spring washer to prevent loosening under high-frequency vibration and complex working conditions, the utility model provides a check gasket set, which is provided with a first gasket and a second gasket, and a first bevel and a second bevel are respectively arranged on the contact surfaces of the first gasket and the second gasket, and then the first gasket and the second gasket are arranged on the terminal post, so that the first bevel and the second bevel are matched to prevent the fastener from loosening under high-frequency vibration and complex working conditions.

[0005] The technical scheme of the utility model is as follows:

[0006] A check gasket set comprises:

[0007] The first gasket is of a ring structure, and has a first bevel on one side surface thereof;

[0008] The second gasket is also of a ring structure, and has the same inner and outer dimensions as those of the first gasket, and has a second bevel on one side surface thereof;

[0009] The first bevel on the first gasket is matched with the second bevel on the second gasket, and the two bevels are engaged with each other.

[0010] Optionally, the second bevel is arranged on the other side surface of the first gasket.

[0011] Optionally, the first bevel is arranged on the other side surface of the second gasket.

[0012] Optionally, the cross section of the first bevel is triangular, and the included angle between the two side surfaces of the first bevel and the surface of the first gasket is less than 90°.

[0013] Optionally, the width of one side surface of the first inclined tooth is greater than the width of the other side surface.

[0014] Optionally, the inclination angle of the side surface of the first inclined tooth with the greater width is 6-40 degrees.

[0015] Optionally, the first inclined tooth and the second inclined tooth have the same structure.

[0016] Optionally, the first inclined tooth and the second inclined tooth on the first gasket have opposite inclination directions.

[0017] Optionally, the number of the first inclined teeth on the first gasket is 24-46.

[0018] Optionally, the number of the second inclined teeth on the second gasket is equal to the number of the first inclined teeth on the first gasket.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] The first gasket and the second gasket have the same specification and are used for sleeving on the same terminal post. In use, the first gasket and the second gasket are sleeved on the terminal post in sequence, and the side surface of the first inclined tooth of the first gasket faces upward, and the side surface of the second inclined tooth of the second gasket faces downward, then a fastener is installed on the terminal post, and the first inclined tooth and the second inclined tooth are matched through the installation of the fastener on the terminal post. Thus, in the working process of the vibration motor, the first gasket and the second gasket are used to generate sufficient frictional resistance between the fastener and the terminal post, so that the purpose of preventing the fastener from loosening due to vibration or impact is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 is a structural schematic view of the utility model;

[0023] Figure 2 is a side structural schematic view of the utility model. DETAILED DESCRIPTION

[0024] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as being illustrative in nature rather than restrictive.

[0025] Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of the technical features indicated. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise explicitly and specifically limited.

[0026] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. For simplicity of the present application's disclosure, the descriptions of the components and arrangements of the specific examples below are provided. Of course, they are merely examples and are presented to simplify the present application. The purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and in itself does not indicate a relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0027] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] Embodiment:

[0029] Referring to Figure 1 and Figure 2 , the present embodiment discloses a check washer set, comprising a first washer 10 and a second washer 20, wherein the first washer 10 and the second washer 20 are of the same size, and in operation, the first washer 10 and the second washer 20 are arranged on the same terminal post and adjacent to each other, and then a fastener is installed on the terminal post to achieve the purpose of preventing the fastener from loosening.

[0030] Specifically, the first washer 10 and the second washer 20 are both circular ring structures, and the first washer 10 has a plurality of first inclined teeth 30 on one side surface, and all the first inclined teeth 30 are uniformly distributed around the circumference of the first washer 10. The second washer 20 has a plurality of second inclined teeth 40 on one side surface, and all the second inclined teeth 40 are uniformly distributed around the circumference of the second washer 20.

[0031] And the adjacent first inclined teeth 30 on the first washer 10 are arranged with zero spacing, and the adjacent second inclined teeth 40 on the second washer 20 are also arranged with zero spacing.

[0032] After the first washer 10 and the second washer 20 are installed on the terminal block, the side of the first washer 10 with the first helical tooth 30 is set upward, and the side of the second washer 20 with the second helical tooth 40 is set downward, so that one of the first helical teeth 30 on the first washer 10 can be embedded in the space between two adjacent second helical teeth 40 on the second washer 20, thereby forming a state in which the first helical tooth 30 and the second helical tooth 40 match and mesh with each other.

[0033] During installation, the first helical tooth 30 and the second helical tooth 40 are installed on the terminal block, and then the fasteners are installed on the terminal block. During the operation of the vibration motor, the first washer 10 and the second washer 20 are used to generate sufficient frictional resistance between the fasteners and the terminal block, so as to prevent the fasteners from loosening due to vibration or impact.

[0034] In one specific embodiment:

[0035] The first washer 10 has a first helical tooth 30 on one side and a second helical tooth 40 on the other side.

[0036] Correspondingly, a second helical tooth 40 is provided on one side of the second washer 20, and a first helical tooth 30 is provided on the other side of the second washer 20.

[0037] During use, the second helical tooth 40 on the first washer 10 contacts the mounting part at the bottom of the terminal, thereby increasing the friction between the first washer 10 and the mounting part at the bottom of the terminal. Similarly, when the fastener is installed on the terminal, the first helical tooth 30 on the second washer 20 contacts the fastener, thereby increasing the friction between the second washer 20 and the fastener.

[0038] This technical solution can effectively improve the anti-loosening effect of the first washer 10 and the second washer 20 on fasteners.

[0039] In another specific embodiment:

[0040] The first helical tooth 30 has a triangular cross-section, wherein there is an angle of less than 90° between the two sides of the first helical tooth 30 and one side of the first washer 10. Furthermore, the angles between the two sides of the first helical tooth 30 and one side of the first washer 10 are different, such that the width of one side of the first washer 10 is greater than the width of the other side.

[0041] In addition, the two ends of the first helical tooth 30 are located on the inner and outer rings of the first washer 10, respectively, and the inclination direction of the first helical tooth 30 on the first washer 10 is opposite to that of the second helical tooth 40.

[0042] This design effectively reduces the thickness of the first washer 10. Simultaneously, the structure of the second helical tooth 40 is identical to that of the first helical tooth 30, thereby reducing the thickness of the second washer 20. By reducing the thickness of the first washer 10 and the second washer 20, the overall thickness of the check washer assembly is reduced, thus making the height of the terminal block controllable.

[0043] Preferably, the angle between the wider side of the first helical tooth 30 and the first washer 10 is 6°-40°. By precisely controlling the angle, sufficient frictional resistance is ensured between the first washer 10 and the second washer 20 and the terminal or fastener, thereby effectively preventing fastener loosening caused by vibration or impact.

[0044] The angle is designed to generate sufficient frictional resistance to resist rotational torque when the first washer 10 and / or the second washer 20 are subjected to axial force. When the included angle is less than 6°, the friction between the first washer 10 and / or the second washer 20 and the contact surface is small, insufficient to effectively prevent loosening. When the included angle is greater than 40°, it may lead to difficulty in installing the first washer 10 and / or the second washer 20 or cause excessive damage to the contact surface.

[0045] Therefore, an angle range of 6°-40° is chosen to balance the magnitude of friction with the ease of assembly, avoiding insufficient friction due to an angle that is too small, or increased assembly difficulty and thread damage due to an angle that is too large. Furthermore, this reduces the impact of temperature changes, material fatigue, and long-term loads on the gasket's performance under different working environments, ensuring it maintains good anti-loosening performance under various operating conditions.

[0046] In another specific embodiment:

[0047] The number of first helical teeth 30 on the first washer 10 is 24 to 46, and the number of second helical teeth 40 on the second washer 20 is equal to the number of first helical teeth 30 on the first washer 10.

[0048] In this embodiment, the number of first helical teeth 30 and second helical teeth 40 on both sides of the first washer 10 and the second washer 20 are both 24 to 46. This allows the first washer 10 and the second washer 20 to withstand sufficient dynamic loads in actual working environments. Selecting 24 to 46 first helical teeth 30 and second helical teeth 40 ensures sufficient friction between the first washer 10 and the second washer 20 and the contact surface to effectively prevent loosening of the threaded connection while also ensuring ease of installation. This range of numbers achieves a balance between anti-loosening effect and practicality, ensuring the reliability and durability of the first washer 10 and the second washer 20 under various working conditions.

[0049] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A check washer assembly, characterized in that, include: The first washer has a ring structure and a first helical tooth on one side surface; The second washer is also a ring structure. Its inner and outer dimensions are the same as those of the first washer. The second washer has a second helical tooth on one side. The side of the second washer with the second helical tooth is close to the side of the first washer with the first helical tooth. The first helical tooth on the first washer matches the second helical tooth on the second washer, and the two mesh with each other. The inclination angle of the first helical tooth is 6°-40°.

2. The check washer assembly according to claim 1, characterized in that, The second helical tooth is provided on the other side of the first washer.

3. The check washer assembly according to claim 2, characterized in that, The second washer has the first helical tooth on its other side.

4. The check washer assembly according to claim 3, characterized in that, The first helical tooth has a triangular cross-section, and there is an angle of less than 90° between the two sides of the first helical tooth and the surface of the first washer.

5. The check washer assembly according to any one of claims 1-4, characterized in that, The first helical tooth has the same structure as the second helical tooth.

6. The check washer assembly according to claim 5, characterized in that, The first helical tooth on the first washer has the opposite inclination direction to the second helical tooth.

7. The check washer assembly according to claim 5, characterized in that, The number of the first helical teeth on the first washer is 24 to 46.

8. The check washer assembly according to claim 7, characterized in that, The number of second helical teeth on the second washer is equal to the number of first helical teeth on the first washer.

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