Wear-resistant tire screw

Abstract

The utility model relates to a wear-resistant tire screw, comprising a fixed head, a cushion block fixedly connected to the outside of the fixed head, a threaded rod fixedly connected to the end of the cushion block away from the fixed head, a nut assembly arranged on the outside of the threaded rod; the nut assembly comprises a nut, the nut is threadedly connected to the outer wall of the threaded rod, the end of the nut away from the cushion block is fixedly connected to a protective cover, a connecting rod is fixedly connected to the inside of the protective cover, the connecting rod extends to the inside of the threaded rod, and a supporting spring is arranged at one end of the connecting rod located inside the threaded rod. The wear-resistant tire screw, by adding a protective cover to the nut and protecting the threaded rod from being exposed to the external environment and being eroded, greatly reduces the wear of the threaded rod, and prolongs its service life, has good practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a wear-resistant tire screw. Background Art

[0002] Tires are circular elastic rubber products that roll on the ground and are usually installed on metal rims. They can support the vehicle body, buffer external impacts, achieve contact with the road surface and ensure the vehicle's driving performance. Screws are usually needed to fix the tires when they are installed to increase the overall stability and safety of the tires. However, the screws will wear out during installation and use, and severe wear will affect the safety of the screws.

[0003] Patent No. CN215109963U in the prior art discloses a multifunctional multi-head wear-resistant screw, comprising a screw body, a screw head fixedly connected to the top of the screw body, a cross groove opened on the top of the screw head, a straight groove arranged on the top of the cross groove, the screw head is in the shape of a regular hexagon, a screw rod fixedly connected to the bottom of the screw head, a thread arranged on the surface of the screw rod, the screw body comprising a base layer, a wear-resistant layer fixedly connected to the top of the base layer, a corrosion-resistant layer fixedly connected to the top of the wear-resistant layer, and a rust-proof layer fixedly connected to the top of the corrosion-resistant layer; the screw body, the screw head, the cross groove, the straight groove, the screw rod, the base layer, the wear-resistant layer, the corrosion-resistant layer and the rust-proof layer are used in combination, and the screw body has the advantages of wear resistance and corrosion resistance.

[0004] The above-mentioned wear-resistant screw improves the wear resistance of the screw body by adding a wear-resistant layer. However, when installed on a vehicle tire, part of the screw rod will be exposed to the outside. During long-term use, the wear-resistant coating on the threaded rod is easily peeled off due to external environmental factors, thereby causing wear of the exposed part of the threaded rod, reducing the service life. Therefore, a wear-resistant tire screw is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a wear-resistant tire screw having the advantages of being convenient for protection, etc., and solving the problem that, when installed on a vehicle tire, part of the screw rod is exposed to the outside, and during long-term use, the wear-resistant coating on the threaded rod is easily fallen off due to external environmental factors, thereby causing wear of the part of the threaded rod exposed to the outside, thereby reducing the service life.

[0006] To achieve the above object, the utility model provides the following technical solution: a wear-resistant tire screw, comprising a fixed head, a cushion block is fixedly connected to the outer side of the fixed head, a threaded rod is fixedly connected to one end of the cushion block away from the fixed head, and a nut assembly is arranged on the outer side of the threaded rod;

[0007] The nut assembly includes a nut, which is threadedly connected to the outer wall of the threaded rod. The end of the nut away from the gasket is fixedly connected to the protective cover. The inner side of the protective cover is fixedly connected to a connecting rod, which extends to the interior of the threaded rod, and a support spring is provided at one end of the connecting rod located inside the threaded rod.

[0008] Furthermore, a washer is fixedly connected to one end of the nut close to the cushion block, and the washer is sleeved on the outer side of the threaded rod.

[0009] Furthermore, a first rubber ring is fixedly connected to a side of the cushion block close to the washer, and a second rubber ring is fixedly connected to a side of the washer close to the cushion block.

[0010] Furthermore, the first rubber ring and the second rubber ring are both made of polyurethane rubber.

[0011] Furthermore, the protective cover is sleeved on the outside of the threaded rod, and the inner diameter of the protective cover is larger than the diameter of the threaded rod.

[0012] Furthermore, the connecting rod is cylindrical in shape, and a circular hole matching the connecting rod is provided inside the threaded rod.

[0013] Furthermore, one end of the support spring abuts against the end surface of the connecting rod, and one end of the support spring away from the connecting rod is fixedly connected to the inner wall of the circular hole.

[0014] Compared with the prior art, the utility model provides a wear-resistant tire screw, which has the following beneficial effects:

[0015] 1. The wear-resistant tire screw, after the tire is installed on the wheel hub, the threaded rod is inserted, and the nut is sleeved on the threaded rod and tightened. By adding a protective cover on the nut, the threaded rod is not located in an exposed position in the wheel hub and is protected by the protective cover, thereby avoiding the thread teeth on the threaded rod from being exposed to the external environment and being eroded, greatly reducing the wear of the threaded rod, extending its service life, having good practicality, and solving the problem that when installing on the vehicle tire, part of the screw rod will be exposed to the outside, and during long-term use, the wear-resistant coating on the threaded rod is easily caused to fall off due to external environmental factors, thereby causing the part of the threaded rod exposed to the outside to wear and reducing the service life.

[0016] 2. When the nut of the wear-resistant tire screw rotates and displaces on the outer wall of the threaded rod, it will also drive the protective cover to rotate and displace, thereby driving the connecting rod to rotate and displace, so that the connecting rod can squeeze the supporting spring inside the threaded rod. The support spring is set to provide supporting force for the connecting rod after contraction, thereby providing supporting force for the protective cover and the nut, ensuring the connection stability between the nut and the threaded rod, making it difficult for the nut and the threaded rod to loosen, thereby ensuring the stability of the installation and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 2 This is a front view of the structure of the utility model;

[0019] Figure 3 It is a structural stereogram of the threaded rod of the utility model.

[0020] In the figure: 1. fixed head; 2. spacer block; 3. threaded rod; 4. nut; 5. washer; 6. protective cover; 7. connecting rod; 8. support spring; 9. first rubber ring; 10. second rubber ring; 11. round hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 In this embodiment, a wear-resistant tire screw includes a fixed head 1, a cushion block 2 is fixedly connected to the outer side of the fixed head 1, and a threaded rod 3 is fixedly connected to the end of the cushion block 2 away from the fixed head 1.

[0023] In this embodiment, a nut assembly is provided on the outer side of the threaded rod 3, and the nut assembly includes a nut 4, which is threadedly connected to the outer wall of the threaded rod 3, and the end of the nut 4 away from the cushion block 2 is fixedly connected to the protective cover 6, and the protective cover 6 is sleeved on the outside of the threaded rod 3, and a connecting rod 7 is fixedly connected to the inner side of the protective cover 6, and the connecting rod 7 extends to the inside of the threaded rod 3, and a supporting spring 8 is provided at one end of the connecting rod 7 located inside the threaded rod 3. The outer shape of the connecting rod 7 is cylindrical, and the cylindrical connecting rod 7 is used to facilitate rotation inside the threaded rod 3, so that the protective cover 6 is convenient to rotate with the nut 4. The inside of the threaded rod 3 is provided with a circular hole 11 adapted to the connecting rod 7, and the opening The circular hole 11 is convenient for installing the connecting rod 7. One end of the supporting spring 8 abuts against the end face of the connecting rod 7, and the end of the supporting spring 8 away from the connecting rod 7 is fixedly connected to the inner wall of the circular hole 11. When the nut 4 is rotated and displaced on the outer wall of the threaded rod 3, the protective cover 6 is also driven to rotate and displace, thereby driving the connecting rod 7 to rotate and displace, so that the connecting rod 7 can squeeze the supporting spring 8 inside the threaded rod 3. The support spring 8 is set to provide supporting force for the connecting rod 7 after contraction, thereby providing supporting force for the protective cover 6 and the nut 4, effectively improving the connection stability between the nut 4 and the threaded rod 3, making it difficult for the nut 4 and the threaded rod 3 to loosen, thereby ensuring the stability of the installation and improving practicality.

[0024] It should be noted that the inner diameter of the protective cover 6 is larger than the diameter of the threaded rod 3. Since the inner diameter of the protective cover 6 is larger than the diameter of the threaded rod 3, the protective cover 6 will not contact the threads of the threaded rod 3 when it is sleeved on the outside of the threaded rod 3. The protective cover 6 can be used to protect the exposed position of the threaded rod 3, while also preventing the protective cover 6 from causing wear to the threaded rod 3, thereby ensuring the protective effect.

[0025] In this embodiment, a washer 5 is fixedly connected to one end of the nut 4 close to the gasket 2, and the washer 5 is sleeved on the outside of the threaded rod 3. A first rubber ring 9 is fixedly connected to one side of the gasket 2 close to the washer 5, and a second rubber ring 10 is fixedly connected to one side of the gasket 2 close to the gasket 2.

[0026] It should be noted that the first rubber ring 9 and the second rubber ring 10 are both made of polyurethane rubber. When the threaded rod 3 is installed on the wheel hub, the cushion block 2 contacts the wheel hub through the first rubber ring 9, and the washer 5 contacts the wheel hub through the second rubber ring 10. The first rubber ring 9 and the second rubber ring 10 made of polyurethane rubber have the advantages of low wear and high friction coefficient, which ensures the stable contact between the cushion block 2 and the washer 5 and the outer wall of the wheel hub, ensures the stable installation of the threaded rod 3, and effectively improves the stability of the connection.

[0027] It should be supplemented that the outer side of the threaded rod 3 is coated with a wear-resistant coating, which can effectively improve the wear resistance of the threaded rod 3 and improve the durability of the threaded rod 3.

[0028] The working principle of the above embodiment is:

[0029] When the utility model is in use, after the tire is installed on the wheel hub, the threaded rod 3 is inserted, the nut 4 is sleeved on the threaded rod 3, and then the nut 4 is tightened. When the nut 4 is rotated and displaced on the outer wall of the threaded rod 3, the protective cover 6 will be driven to rotate and displace, thereby driving the connecting rod 7 to rotate and displace, so that the connecting rod 7 can squeeze the supporting spring 8 inside the threaded rod 3. The supporting spring 8 is provided to provide supporting force for the connecting rod 7 after contraction, thereby providing supporting force for the protective cover 6 and the nut 4, ensuring the connection stability between the nut 4 and the threaded rod 3, making it difficult for the nut 4 and the threaded rod 3 to loosen. Since the protective cover 6 is sleeved on the outside of the threaded rod 3, the threaded rod 3 is not located in an exposed position in the wheel hub and is protected by the protective cover 6, thereby avoiding the thread teeth on the threaded rod 3 being exposed to the external environment and eroded, greatly reducing the wear of the threaded rod 3 and extending its service life.

[0030] The installation method, connection method or setting method disclosed in this embodiment are all common mechanical methods, and can be implemented as long as they can achieve their beneficial effects. It should be noted that in this article, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant tire screw, comprising a fixing head (1), a pad (2) being fixedly connected to the outer side of the fixing head (1), characterized in that: One end of the cushion block (2) away from the fixed head (1) is fixedly connected to a threaded rod (3), and a nut assembly is arranged on the outer side of the threaded rod (3); The nut assembly comprises a nut (4), wherein the nut (4) is threadedly connected to the outer wall of the threaded rod (3), and one end of the nut (4) away from the cushion block (2) is fixedly connected to a protective cover (6), and the inner side of the protective cover (6) is fixedly connected to a connecting rod (7), and the connecting rod (7) extends to the interior of the threaded rod (3), and a supporting spring (8) is provided at one end of the connecting rod (7) located inside the threaded rod (3).

2. The wear-resistant tire screw according to claim 1, characterized in that: A washer (5) is fixedly connected to one end of the nut (4) close to the cushion block (2), and the washer (5) is sleeved on the outside of the threaded rod (3).

3. The wear-resistant tire screw according to claim 2, characterized in that: A first rubber ring (9) is fixedly connected to one side of the cushion block (2) close to the washer (5), and a second rubber ring (10) is fixedly connected to one side of the washer (5) close to the cushion block (2).

4. The wear-resistant tire screw according to claim 3, characterized in that: The first rubber ring (9) and the second rubber ring (10) are both made of polyurethane rubber.

5. The wear-resistant tire screw according to claim 1, characterized in that: The protective cover (6) is sleeved on the outside of the threaded rod (3), and the inner diameter of the protective cover (6) is greater than the diameter of the threaded rod (3).

6. The wear-resistant tire screw according to claim 1, characterized in that: The connecting rod (7) is cylindrical in shape, and a circular hole (11) matching the connecting rod (7) is provided inside the threaded rod (3).

7. The wear-resistant tire screw according to claim 6, characterized in that: One end of the support spring (8) abuts against the end surface of the connecting rod (7), and one end of the support spring (8) away from the connecting rod (7) is fixedly connected to the inner wall of the circular hole (11).

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