Nylon nut with anti-loosening structure

Abstract

The utility model discloses a nylon nut with anti-loose structure, including nylon nut, it includes nut body, and is located on the nylon insert of nut body, anti-loose structure, it includes anti-loose gasket, and is located between the rubber gasket of anti-loose gasket with nut gasket, the first anti-loose tooth is protruding on the anti-loose gasket top surface, when the nylon nut is screwed, the rubber gasket is extruded, makes the first anti-loose tooth gradually inserts the rubber gasket in, to limit the rotation of rubber gasket. The utility model provides a nylon nut with anti-loose structure, through setting up rubber gasket as intermediate medium, makes the first anti-loose tooth on anti-loose gasket gradually inserts and " bites " into rubber when screwing. The high friction coefficient and viscoelasticity of rubber material provide huge rotation resistance, can effectively resist the nylon nut loose rotation caused by vibration and impact.

Description

Technical Field

[0001] This application relates to the field of nylon nut technology, and more particularly to a nylon nut with an anti-loosening structure. Background Technology

[0002] Nylon nuts are widely used in various applications for preventing loosening, insulation, and vibration damping due to their lightweight, insulation, corrosion resistance, and certain elasticity. A common method for preventing loosening is to embed a nylon insert (nylon ring) inside the metal nut. Utilizing the good elastic deformation capacity of nylon, the insert tightens the bolt thread after the bolt is screwed in, generating friction and reaction force to prevent loosening. While this structure is effective, under harsh conditions such as long-term severe vibration and large temperature variations, the nylon material may undergo stress relaxation or creep, leading to a decrease in tightening force and thus a risk of loosening. Utility Model Content

[0003] To solve the above problems, this technical solution provides a nylon nut with an anti-loosening structure.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] A nylon nut with an anti-loosening structure, comprising

[0006] A nylon nut, comprising a nut body and a nylon insert disposed on the nut body;

[0007] The anti-loosening structure includes an anti-loosening washer and a rubber washer disposed between the anti-loosening washer and the nylon nut;

[0008] The anti-loosening washer has a first anti-loosening tooth protruding from its top surface. When the nylon nut is tightened, the rubber washer is squeezed, causing the first anti-loosening tooth to gradually embed into the rubber washer, thereby restricting the rotation of the rubber washer.

[0009] As described above, a nylon nut with an anti-loosening structure has a second anti-loosening tooth protruding from its bottom surface. When the nylon nut is tightened, the second anti-loosening tooth gradually embeds into the rubber gasket.

[0010] As described above, in a nylon nut with an anti-loosening structure, a plurality of second anti-loosening teeth are distributed circumferentially, and the second anti-loosening teeth gradually protrude in a clockwise direction.

[0011] As described above, in a nylon nut with an anti-loosening structure, the second anti-loosening tooth includes a second inclined surface and a second blocking surface. When the nylon nut is tightened, the second inclined surface slides on the rubber washer to allow the nylon nut to rotate relative to the rubber washer. When the nylon nut is loosened, the second blocking surface prevents the nylon nut from rotating relative to the rubber washer.

[0012] As described above, in a nylon nut with an anti-loosening structure, a plurality of first anti-loosening teeth are distributed circumferentially, and the first anti-loosening teeth gradually protrude in a clockwise direction.

[0013] As described above, in a nylon nut with an anti-loosening structure, the first anti-loosening tooth is made by stamping and cutting the anti-loosening washer. One end of the first anti-loosening tooth is connected to the anti-loosening washer, and the other end protrudes from the anti-loosening washer.

[0014] As described above, a nylon nut with an anti-loosening structure includes an inner inclined surface that gradually slopes toward the center of the nut body along the screwing direction of the nut body, a top surface that abuts against the nut body, and a straight surface between the inner inclined surface and the top surface, the straight surface being used to be embedded between two threads.

[0015] In the nylon nut with anti-loosening structure described above, the maximum diameter of the inner wall of the nylon insert is larger than the inner diameter of the nut body.

[0016] In the nylon nut with anti-loosening structure described above, the minimum diameter of the inner wall of the nylon insert is smaller than the inner diameter of the nut body.

[0017] The beneficial effects of this application are:

[0018] This invention provides a nylon nut with an anti-loosening structure. By using a rubber washer as an intermediate medium, the first anti-loosening tooth on the washer gradually embeds and "engages" with the rubber during tightening. The high coefficient of friction and viscoelasticity of the rubber material provide significant rotational resistance, effectively resisting the loosening of the nylon nut caused by vibration and impact. This "embedded" engagement is more flexible and adaptable than the traditional rigid engagement between metals, resulting in a more durable anti-loosening effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the structure of this application;

[0021] Figure 2 This is a schematic diagram of the connection status of this application. Detailed Implementation

[0022] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] A nylon nut with an anti-loosening structure, comprising

[0024] Nylon nut 1, which includes a nut body 11 and a nylon insert 12 disposed on the nut body 11;

[0025] The anti-loosening structure includes an anti-loosening washer 2 and a rubber washer 3 disposed between the anti-loosening washer 2 and the nylon nut;

[0026] The anti-loosening washer 2 has a first anti-loosening tooth 21 protruding on its top surface. When the nylon nut 1 is tightened, the rubber washer 3 is squeezed, so that the first anti-loosening tooth 21 gradually embeds into the rubber washer 3 to restrict the rotation of the rubber washer 3.

[0027] This invention provides a nylon nut with an anti-loosening structure. By using a rubber washer as an intermediate medium, the first anti-loosening tooth on the washer gradually embeds and "engages" with the rubber during tightening. The high coefficient of friction and viscoelasticity of the rubber material provide significant rotational resistance, effectively resisting the loosening of the nylon nut caused by vibration and impact. This "embedded" engagement is more flexible and adaptable than the traditional rigid engagement between metals, resulting in a more durable anti-loosening effect.

[0028] Furthermore, as a preferred embodiment of this solution and not a limitation, a second anti-loosening tooth 13 is protruding from the bottom surface of the nylon nut 1. When the nylon nut 1 is tightened, the second anti-loosening tooth 13 gradually embeds into the rubber washer 3. This design forms a two-way anti-loosening structure. The second anti-loosening tooth embeds into the rubber washer from above, and together with the first anti-loosening tooth below, "clamps" the rubber washer, greatly enhancing the ability to prevent the nylon nut from loosening itself. It changes the contact surface between the nut and the anti-loosening structure from one contact surface to two contact surfaces, thus doubling the reliability of the anti-loosening mechanism. When the nylon nut is loosened, the rubber washer is damaged by the biting of the first and second anti-loosening teeth. Therefore, after loosening the nylon nut, a new rubber washer needs to be replaced.

[0029] Furthermore, as a preferred embodiment of this solution, and not a limitation thereof, a plurality of the second anti-loosening teeth 13 are circumferentially distributed, and the second anti-loosening teeth 13 gradually bulge in a clockwise direction. The circumferential distribution ensures the uniformity of the anti-loosening force. The design of gradually bulging in a clockwise direction makes it easy for the inclined surface of the teeth to slide over the rubber when the nut is tightened clockwise, making the tightening operation smooth and effortless; while when the nut is attempted to be loosened counterclockwise, the blocking surface of the teeth will immediately form a huge resistance with the rubber, achieving excellent unidirectional anti-loosening (anti-retightening) characteristics and giving the operator a clear tightening feel.

[0030] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the second anti-loosening tooth 13 includes a second inclined surface 131 and a second blocking surface 132. When the nylon nut 1 is tightened, the second inclined surface 131 slides on the rubber gasket 3 to allow the nylon nut 1 to rotate relative to the rubber gasket 3; when the nylon nut 1 is loosened, the second blocking surface 132 prevents the nylon nut 1 from rotating relative to the rubber gasket 3. The inclined surface is responsible for guiding and reducing the tightening torque, while the nearly vertical blocking surface provides the maximum engagement depth and mechanical interlocking force when loosening, fundamentally limiting the possibility of counterclockwise rotation, and the anti-loosening effect is very reliable.

[0031] Furthermore, as a preferred embodiment of this solution and not a limitation, the plurality of first anti-loosening teeth 21 are circumferentially distributed, and the first anti-loosening teeth 21 gradually protrude in a clockwise direction. Similar to the second anti-loosening teeth, this design also gives the anti-loosening washer itself a unidirectional anti-loosening characteristic. When the nut tends to loosen, it will cause the rubber washer to tend to rotate counterclockwise. At this time, the blocking surface of the first anti-loosening teeth will deeply bite into the rubber and even contact the connected component below, greatly restricting the rotation of the anti-loosening washer (and thus the entire assembly).

[0032] Furthermore, as a preferred embodiment of this solution and not a limitation, the first anti-loosening tooth 21 is formed by stamping and cutting the anti-loosening gasket 2. One end of the first anti-loosening tooth 21 is connected to the anti-loosening gasket 2, and the other end protrudes from the anti-loosening gasket 2. Manufacturing the anti-loosening tooth using a stamping and cutting process is simple, low-cost, and highly efficient, making it very suitable for mass production. At the same time, the root of the anti-loosening tooth formed by this process is firmly connected to the gasket body, resulting in high structural strength and resistance to breakage after repeated stress.

[0033] Furthermore, as a preferred embodiment of this solution and not a limitation, the nylon insert 12 includes an inner inclined surface 121 that gradually slopes towards the center of the nut body 11 along the screwing direction of the nut body 11, a top surface 122 that abuts against the nut body 11, and a straight surface 123 between the inner inclined surface 121 and the top surface 122, the straight surface 123 being used to embed between two threaded threads. This structure optimizes the interaction between the nylon insert and the bolt. The inner inclined surface acts as a guide, facilitating bolt screwing; the straight surface embeds into the root of the bolt thread, increasing the contact area and clamping force, and improving the anti-loosening ability of the nylon part itself; the top surface ensures the firmness of the insert in the nut body, preventing it from falling out.

[0034] Furthermore, as a preferred embodiment of this solution, and not a limitation thereof, the maximum diameter of the inner wall of the nylon insert 12 is greater than the inner diameter of the nut body 11. This design ensures that the nylon insert always applies preload stress to the bolt thread in the radial direction. That is, regardless of the bolt diameter, the nylon insert will elastically deform and tightly wrap around the bolt, providing continuous frictional anti-loosening force, which is the basis for the anti-loosening of the nylon nut.

[0035] Furthermore, as a preferred embodiment of this solution, and not a limitation thereof, the minimum diameter of the inner wall of the nylon insert 12 is smaller than the inner diameter of the nut body 11. This design ensures that the nylon insert forms an interference fit with the bolt thread in the axial direction. When the bolt is screwed in, the nylon insert must be "spread out" to pass through, which generates a huge frictional force that directly prevents the bolt from rotating in the opposite direction, further strengthening the most basic anti-loosening mechanism.

[0036] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A nylon nut with an anti-loosening structure, characterized in that: include A nylon nut (1) includes a nut body (11) and a nylon insert (12) disposed on the nut body (11); The anti-loosening structure includes an anti-loosening washer (2) and a rubber washer (3) disposed between the anti-loosening washer (2) and the nylon nut (1); The anti-loosening washer (2) has a first anti-loosening tooth (21) protruding on its top surface. When the nylon nut (1) is tightened, the rubber washer (3) is squeezed, so that the first anti-loosening tooth (21) gradually embeds into the rubber washer (3) to restrict the rotation of the rubber washer (3).

2. The nylon nut with anti-loosening structure according to claim 1, characterized in that: The nylon nut (1) has a second anti-loosening tooth (13) protruding on its bottom surface. When the nylon nut (1) is tightened, the second anti-loosening tooth (13) gradually embeds into the rubber gasket (3).

3. A nylon nut with an anti-loosening structure according to claim 2, characterized in that: Multiple second anti-loosening teeth (13) are distributed in a circular pattern, and the second anti-loosening teeth (13) gradually protrude in a clockwise direction.

4. A nylon nut with an anti-loosening structure according to claim 3, characterized in that: The second anti-loosening tooth (13) includes a second inclined surface (131) and a second blocking surface (132). When the nylon nut (1) is tightened, the second inclined surface (131) slides on the rubber pad (3) to allow the nylon nut (1) to rotate relative to the rubber pad (3). When the nylon nut (1) is loosened, the second blocking surface (132) prevents the nylon nut (1) from rotating relative to the rubber pad (3).

5. A nylon nut with an anti-loosening structure according to claim 1, characterized in that: Multiple first anti-loosening teeth (21) are distributed in a circumferential manner, and the first anti-loosening teeth (21) gradually protrude in a clockwise direction.

6. A nylon nut with an anti-loosening structure according to claim 1, characterized in that: The first anti-loosening tooth (21) is made by stamping and cutting the anti-loosening pad (2). One end of the first anti-loosening tooth (21) is connected to the anti-loosening pad (2), and the other end protrudes from the anti-loosening pad (2).

7. A nylon nut with an anti-loosening structure according to claim 1, characterized in that: The nylon insert (12) includes an inner inclined surface (121) that gradually slopes toward the center of the nut body (11) along the screwing direction of the nut body (11), a top surface (122) that abuts against the nut body (11), and a straight surface (123) between the inner inclined surface (121) and the top surface (122), the straight surface (123) being used to be inserted between two threads.

8. A nylon nut with an anti-loosening structure according to claim 1, characterized in that: The maximum diameter of the inner wall of the nylon insert (12) is greater than the inner diameter of the nut body (11).

9. A nylon nut with an anti-loosening structure according to claim 1, characterized in that: The minimum diameter of the inner wall of the nylon insert (12) is smaller than the inner diameter of the nut body (11).

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