Antiskid nut assembly

Abstract

The utility model discloses an anti-skid nut assembly. The nut structure is composed of a nut body section and a protruding section connected to the bottom end of the nut body section, an inner threaded hole penetrating through the nut body section and the protruding section is formed in the center of the nut structure, at least two open grooves are formed in the protruding section, and the nut structure further comprises a gasket capable of being matched with the protruding section of the nut structure in an embedded mode. The gasket is provided with a through hole capable of being in interference fit with the protruding section, and the protruding section of the nut body can penetrate into the through hole of the gasket to form an anti-disengaging structure. The utility model has the advantages that the bolt can be in interference fit with the gasket by directly utilizing the elastic deformation of the convex section after being screwed in, so that the anti-loosening performance of connection is obviously improved; when the bolt is screwed in, the flange at the conical peripheral end of the nut is attached to the concave-convex part of the gasket, the friction force between the bolt and the nut is greatly increased along with the increase of the locking length of the nut, and the bolt is firm, reliable and free of loosening.

Description

Technical Field

[0001] This utility model relates to a nut assembly, and more particularly to an anti-slip nut assembly. Background Technology

[0002] Traditional nuts typically rely on their threaded connection with bolts for connection and fastening. However, during long-term use, nuts are frequently subjected to external factors such as vibration, impact, or temperature changes, making them prone to loosening or unscrewing. This is particularly prominent in applications involving high-frequency vibration, large vibration amplitude, or high safety requirements, affecting not only the stability and service life of the structure but also potentially leading to equipment failure or safety accidents. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a non-slip nut assembly that provides a firm and reliable connection and prevents loosening.

[0004] To solve the above-mentioned technical problems, the anti-slip nut assembly of this utility model includes a nut structure consisting of a nut body section and a protruding section connected to the bottom end of the nut body section. The center of the nut structure has an internal threaded hole that passes through the nut body section and the protruding section. The protruding section is provided with at least two open slots. It also includes a washer that can be nested and fitted with the protruding section of the nut structure. The washer has a through hole that can be interference-fitted with the protruding section. The protruding section of the nut body can penetrate into the through hole of the washer to form an anti-loosening structure.

[0005] The outer surface of the protruding section is shaped like a frustum, and the through hole of the gasket is provided with a tapered hole that is adapted to the shape of the outer surface of the protruding section.

[0006] The bottom edge of the protruding section is provided with a flange, and the middle of the through hole of the gasket is provided with an arc-shaped section that connects with the tapered hole. The arc-shaped section is adapted to the cross-sectional shape of the flange and the two are interference-fitted.

[0007] The cone angle of the frustum-shaped structure ranges from 10° to 20°.

[0008] The opening grooves provided on the protruding section are evenly distributed along the centerline of the internal threaded hole.

[0009] An inner arc connecting the flange and the raised section is provided with an inner groove.

[0010] The gasket has a cylindrical section that connects to the arc-shaped section in its through hole.

[0011] Advantages of this utility model:

[0012] (1) The protruding section with an open groove at the bottom of the nut body section and the washer that can be nested with the protruding section of the nut structure can be directly used to make an interference fit with the washer by the elastic deformation of the protruding section after the bolt is screwed in, which significantly improves the anti-loosening performance of the connection.

[0013] (2) The outer surface of the protruding section is a frustum-shaped structure, and the gasket is provided with a conical hole that is adapted to its shape. The protruding section and the gasket are guided by a conical surface, which reduces the assembly difficulty and thus effectively improves the assembly efficiency.

[0014] (3) By setting a flange at the bottom edge of the protruding section, the protruding section penetrates into the through hole of the gasket and is used in conjunction with the anti-slip gasket. When the bolt is screwed in, the flange at the outer end of the conical outer edge of the nut and the concave and convex parts of the gasket fit together. As the length of the nut is locked in increases, the friction between the bolt and the nut is greatly increased, making it firm, reliable and not loose.

[0015] (4) A connecting inner arc is provided between the flange and the raised section, and an arc section connecting with the tapered hole is provided in the middle of the gasket, which increases the contact area and makes the fit better. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the mating structure of the anti-slip nut assembly of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the nut structure in this utility model;

[0018] Figure 3 This is a magnified front view of the nut structure in this utility model;

[0019] Figure 4 for Figure 3 A magnified structural diagram at point A;

[0020] Figure 5 This is a cross-sectional structural diagram showing the mating state of the anti-slip nut assembly of this utility model;

[0021] Figure 6 This is a cross-sectional structural diagram of the nut structure in this utility model;

[0022] Figure 7 This is an enlarged cross-sectional view of the gasket in this utility model;

[0023] Figure 8 for Figure 7 A magnified structural diagram at point B;

[0024] Figure 9 This is a front view of the mating structure of the anti-slip nut assembly of this utility model;

[0025] Figure 10This is a three-dimensional structural diagram of the gasket in this utility model;

[0026] Figure 11 This is an assembly drawing of the anti-slip nut assembly of this utility model;

[0027] Figure 12 This is an assembly cross-sectional view of the anti-slip nut assembly of this utility model. Detailed Implementation

[0028] The anti-slip nut assembly of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example

[0029] like Figure 1-6 As shown, the anti-slip nut assembly of this utility model includes a nut structure consisting of a nut body section 1 and a protruding section 2 connected to the bottom end of the nut body section 1. The center of the nut structure has an internal threaded hole that passes through the nut body section 1 and the protruding section 2. The protruding section 2 is provided with four open grooves 6, which are evenly distributed along the center line of the internal threaded hole. The anti-slip nut assembly also includes a washer 3 that can be nested and fitted with the protruding section 2 of the nut structure. The washer 3 has a through hole that can be interference-fitted with the protruding section 2. The protruding section 2 of the nut body can penetrate into the through hole of the washer 3 to form an anti-loosening structure. The outer surface of the protruding section 2 is shaped like a frustum, and the cone angle of the frustum is in the range of 10°-20°. The through hole of the washer 3 is provided with a tapered hole that is adapted to the outer surface shape of the protruding section 2, thereby improving assembly efficiency. Example

[0030] Unlike Example 1, as Figure 3 , 4 As shown, the bottom edge of the raised section 2 is provided with a flange 4, and the middle of the through hole of the gasket 3 is provided with an arc-shaped section 8 that connects with the conical hole. The arc-shaped section and the cross-sectional shape of the flange are adapted to each other and are interference fit. An inner arc 7 of the inner groove 5 is provided between the flange 4 and the raised section 2. A cylindrical section that connects with the arc-shaped section is provided in the through hole of the gasket 3. The raised section can penetrate into the through hole of the gasket and be used in conjunction with the anti-slip gasket. When the bolt is screwed in, the flange at the outer end of the conical nut and the concave and convex parts of the gasket fit together. As the length of the nut is increased, the friction between the bolt and the nut is greatly increased, making it firm, reliable and not loose. The conical angle of the frustum-shaped structure is in the range of 10°-20°. The opening groove 6 provided on the raised section 2 is evenly distributed along the center line of the internal thread hole. An inner arc of the inner groove 5 is provided between the flange 4 and the raised section 2. A cylindrical section that connects with the arc-shaped section is provided in the through hole of the gasket 3.

Claims

1. An anti-slip nut assembly, characterized in that: The nut structure comprises a nut body section (1) and a protruding section (2) connected to the bottom of the nut body section (1). The center of the nut structure has an internal threaded hole that passes through the nut body section (1) and the protruding section (2). The protruding section (2) is provided with at least two open slots (6). The nut structure also includes a washer (3) that can be nested and fitted with the protruding section (2) of the nut structure. The washer (3) has a through hole that can be interference fitted with the protruding section (2). The protruding section (2) of the nut body can penetrate into the through hole of the washer (3) to form an anti-loosening structure.

2. The anti-slip nut assembly according to claim 1, characterized in that: The outer surface of the protruding section (2) is shaped like a frustum, and the through hole of the gasket (3) is provided with a tapered hole that is adapted to the outer surface shape of the protruding section (2).

3. The anti-slip nut assembly according to claim 2, characterized in that: The bottom edge of the protruding section (2) is provided with a flange (4), and the middle part of the through hole of the gasket (3) is provided with an arc-shaped section (8) that connects with the tapered hole. The arc-shaped section is adapted to the cross-sectional shape of the flange and the two are interference fit.

4. The anti-slip nut assembly according to claim 2 or 3, characterized in that: The cone angle of the frustum-shaped structure ranges from 10° to 20°.

5. The anti-slip nut assembly according to claim 4, characterized in that: The opening grooves (6) provided on the protruding section (2) are evenly distributed along the center line of the internal threaded hole.

6. The anti-slip nut assembly according to claim 3, characterized in that: An inner arc (7) with an inner groove is provided between the flange (4) and the protruding section (2).

7. The anti-slip nut assembly according to claim 6, characterized in that: The gasket (3) has a cylindrical section in the through hole that connects with the arc-shaped section.

Images