Dust-proof hub nut

Abstract

The utility model discloses dustproof wheel hub nut, including the nut main part, the blocking ring, the flange and the sealing plug, the top end of nut main part is inserted with a sealing plug, and the sidewall bottom of nut main part is equipped with a circle of blocking ring, and the bottom end surface of blocking ring is flush with the bottom end surface of nut main part, be equipped with a flange below nut main part, and the inner wall of flange is the taper surface, and the top end inner diameter of flange is less than the outer diameter of blocking ring, the lower end surface of nut main part is fixed with the limiting ring, and the flange is sleeved in the outside portion of limiting ring, and the height of limiting ring is less than the height of flange, and the outer wall of limiting ring is the taper surface, and the outer diameter of limiting ring top -end is less than the inner diameter of flange top -end, and the outer diameter of limiting ring bottom -end is greater than the inner diameter of flange top -end, the utility model discloses a sealing plug is set in the top end of nut main part, so that the nut has good dustproof effect after installation, and the thread hole in the nut is not easy to be corroded, and the screw rod matched with the nut is not easy to be corroded.

Description

Technical Field

[0001] This utility model relates to the technical field of fasteners, and in particular to the technical field of nuts. Background Technology

[0002] Currently, wheel hub nuts are special nuts used to fix the outer wheel hubs of automobiles. Due to the uncertainty of automobile nuts, there is no national standard for automobile nuts. However, the general models are similar to ordinary hexagonal nuts, and there are various models between M12 and M42. Compared with ordinary hexagonal nuts, wheel hub nuts are generally thicker than national standard hexagonal nuts of the same specification, and they are generally fine-threaded. The shape is the same as that of hexagonal nuts, which are equilateral hexagonal.

[0003] Existing patent CN205244086U discloses a split-type automotive wheel hub nut, including a nut shell and a nut core. A connecting and mating structure is provided between the nut shell and the nut core, the connecting and mating structure being a threaded connection. The nut shell is made of aluminum alloy, and the nut core is made of high-hardness alloy steel. The nut shell includes a nut shell head, a nut shell connecting arm, and a nut shell bottom, which are integrally connected. The nut core includes a nut core head, a nut core connecting part, a nut core connecting arm, and a nut core bottom, which are also integrally connected. Because both ends are open, dust and rainwater easily come into contact with the screw, causing corrosion of the screw and the threaded holes of the nut. Summary of the Invention

[0004] The purpose of this utility model is to solve the problems in the prior art and propose a dustproof wheel hub nut that can make the nut have a good dustproof effect, the threaded hole inside the nut is not easily corroded, and the screw that mates with the nut is also not easily corroded.

[0005] To achieve the above objectives, this utility model proposes a dustproof wheel hub nut, comprising a nut body, a retaining ring, a flange, and a sealing plug. A sealing plug is inserted at the top of the nut body. A retaining ring is provided at the bottom of the side wall of the nut body, with its bottom end face flush with the bottom end face of the nut body. A flange is provided below the nut body, with a conical inner wall. The inner diameter of the flange top is smaller than the outer diameter of the retaining ring. A limiting ring is fixed to the lower end face of the nut body. The flange is fitted over the limiting ring, with the height of the limiting ring being less than the height of the flange. The outer wall of the limiting ring is also conical, with the outer diameter of the limiting ring top being smaller than the inner diameter of the flange top, and the outer diameter of the limiting ring bottom being larger than the inner diameter of the flange top. When the lower end face of the retaining ring abuts against the upper end face of the flange, there is a gap between the inner wall of the flange and the outer wall of the limiting ring.

[0006] Preferably, the nut body is an external hexagonal nut body.

[0007] Preferably, the top of the nut body is provided with a mounting groove, the mounting groove and the nut body are located on the same vertical axis, the mounting groove is connected to the threaded hole of the nut body, the inner diameter of the mounting groove is larger than the inner diameter of the threaded hole of the nut body, and the sealing plug is inserted into the mounting groove.

[0008] Preferably, the outer wall of the sealing plug is provided with an outwardly protruding sealing ring, and the inner wall of the mounting groove is provided with a sealing groove that mates with the sealing ring, with the sealing ring embedded in the sealing groove.

[0009] Preferably, the blocking ring, the nut body, and the limiting ring are an integral structure, with the limiting ring and the nut body located on the same vertical axis, and the minimum inner diameter of the limiting ring being larger than the inner diameter of the threaded hole of the nut body.

[0010] The beneficial effects of this utility model are as follows: By placing the sealing plug at the top of the nut body, the nut has a good dustproof effect after installation. The threaded hole inside the nut is not easily corroded, and the screw that mates with the nut is also not easily corroded. The flange is equipped with a limiting ring, so that the flange will not rotate during the tightening process of the nut, and the flange will not scratch the hub.

[0011] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 This is the front view of the dustproof wheel hub nut of this utility model.

[0013] In the diagram: 1-nut body, 2-sealing plug, 3-flange, 11-mounting groove, 12-sealing groove, 15-blocking ring, 16-limiting ring, 20-sealing ring. Detailed Implementation

[0014] Example 1:

[0015] See Figure 1 The dustproof wheel hub nut of this utility model includes a nut body 1, a blocking ring 15, a flange 3 and a sealing plug 2. A sealing plug 2 is inserted at the top of the nut body 1, and a blocking ring 15 is provided at the bottom of the side wall of the nut body 1. The bottom end face of the blocking ring 15 is flush with the bottom end face of the nut body 1.

[0016] A flange 3 is provided below the nut body 1. The inner wall of the flange 3 is a conical surface, and the inner diameter of the top of the flange 3 is smaller than the outer diameter of the retaining ring 15.

[0017] A limiting ring 16 is fixed to the lower end face of the nut body 1. The flange 3 is sleeved on the outside of the limiting ring 16. The height of the limiting ring 16 is less than the height of the flange 3. The outer wall of the limiting ring 16 is a conical surface. The outer diameter of the top end of the limiting ring 16 is less than the inner diameter of the top end of the flange 3. The outer diameter of the bottom end of the limiting ring 16 is greater than the inner diameter of the top end of the flange 3. When the lower end face of the blocking ring 15 abuts against the upper end face of the flange 3, there is a gap between the inner wall of the flange 3 and the outer wall of the limiting ring 16.

[0018] The nut body 1 is an external hexagonal nut body 1.

[0019] Example 2:

[0020] To facilitate the installation of the sealing plug 2, the top of the nut body 1 is provided with a mounting groove 11. The mounting groove 11 and the nut body 1 are located on the same vertical axis. The mounting groove 11 is connected to the threaded hole of the nut body 1. The inner diameter of the mounting groove 11 is larger than the inner diameter of the threaded hole of the nut body 1. The sealing plug 2 is inserted into the mounting groove 11.

[0021] To prevent the sealing plug 2 from falling off, the outer wall of the sealing plug 2 is provided with an outwardly protruding sealing ring 20, and the inner wall of the mounting groove 11 is provided with a sealing groove 12 that cooperates with the sealing ring 20. The sealing ring 20 is embedded in the sealing groove 12, and the sealing plug 2 is made of a material with a certain elasticity.

[0022] The working process of this utility model:

[0023] In the operation of this dustproof wheel hub nut, the nut body 1 and the flange 3 are separate during the tightening process. The flange 3 will not rotate with the nut body 1, and the flange 3 will not cause sliding friction to the wheel hub. The flange 3 is not easy to scratch the wheel hub.

[0024] During use after the nut is installed, the presence of the sealing plug 2 prevents external dust and rainwater from entering the nut body 1. This prevents the threaded hole and screw inside the nut body 1 from coming into contact with dust and rainwater, making the threaded hole and screw less prone to corrosion and improving service life.

[0025] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A dust-proof hub nut, characterized by: The nut body (1) includes a nut body (1), a retaining ring (15), a flange (3), and a sealing plug (2). A sealing plug (2) is inserted at the top of the nut body (1). A retaining ring (15) is provided at the bottom of the side wall of the nut body (1). The bottom end face of the retaining ring (15) is flush with the bottom end face of the nut body (1). A flange (3) is provided below the nut body (1). The inner wall of the flange (3) is conical. The inner diameter of the top of the flange (3) is smaller than the outer diameter of the retaining ring (15). 1) A limiting ring (16) is fixed on the lower end face of the flange (3). The flange (3) is sleeved on the outside of the limiting ring (16). The height of the limiting ring (16) is less than the height of the flange (3). The outer wall of the limiting ring (16) is a conical surface. The outer diameter of the top of the limiting ring (16) is less than the inner diameter of the top of the flange (3). The outer diameter of the bottom of the limiting ring (16) is greater than the inner diameter of the top of the flange (3). When the lower end face of the blocking ring (15) abuts against the upper end face of the flange (3), there is a gap between the inner wall of the flange (3) and the outer wall of the limiting ring (16).

2. The dust seal hub nut of claim 1 wherein: The nut body (1) is an external hexagonal nut body (1).

3. The dust seal hub nut of claim 1 wherein: The top of the nut body (1) is provided with an installation groove (11). The installation groove (11) and the nut body (1) are located on the same vertical axis. The installation groove (11) is connected to the threaded hole of the nut body (1). The inner diameter of the installation groove (11) is larger than the inner diameter of the threaded hole of the nut body (1). The sealing plug (2) is inserted into the installation groove (11).

4. The dust seal hub nut of claim 3 wherein: The outer wall of the sealing plug (2) is provided with an outwardly protruding sealing ring (20), and the inner wall of the mounting groove (11) is provided with a sealing groove (12) that cooperates with the sealing ring (20). The sealing ring (20) is embedded in the sealing groove (12).

5. The dust seal hub nut of claim 1 wherein: The blocking ring (15), the nut body (1) and the limiting ring (16) are an integral structure. The limiting ring (16) and the nut body (1) are located on the same vertical axis. The minimum inner diameter of the limiting ring (16) is greater than the inner diameter of the threaded hole of the nut body (1).

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