Spherical tire lock nut

Abstract

The invention relates to the technical field of fasteners, in particular to a spherical tire locknut which comprises a nut body, a damping ring, a connecting piece and a bolt, the damping ring is arranged at the bottom of the nut body, the connecting piece is downwards arranged on the damping ring, the bolt is arranged below the connecting piece, the bolt is upwards connected with the nut body through threads, and the connecting piece is arranged on the damping ring. The nut body comprises an upper nut body, a lower nut body and a locking gasket, the upper nut body and the lower nut body are connected through threads, the annular locking gasket is arranged between the upper nut body and the lower nut body, the upper nut body and the lower nut body are arranged, internal threads are in reverse threaded connection, and the stability of the nut is improved; the plastic block is arranged and can be melted by rotating heat, so that the connection strength is improved; an L-shaped damping cavity is formed in the lower nut, external impact can be absorbed, the damping performance of the nut is improved under the combined action of the damping ring, and safety is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fasteners, and more particularly to a spherical tire anti-loosening nut. Background Art

[0002] Nuts are parts that tightly connect mechanical equipment. They are used in many industries: transportation, foundry, shipbuilding, wind power generation, etc. According to the different needs of different industries, nuts have different types, materials and standards. Among them, nuts are often used on high-speed vehicles such as car tires. Long-term high-speed movement and vibration of the vehicle body will cause the nuts on the tires to loosen and have poor fatigue resistance. Technical problems such as poor performance. This kind of failure in actual engineering can easily cause the machine to fail to work properly or even cause catastrophic accidents.

[0003] An existing tire fastening anti-loosening nut, with announcement number: CN 212564028 U, comprises a wheel hub body, a placement groove is provided on the side of the wheel hub body, a bolt is slidably connected to the middle part of the end of the placement groove, a nut is threadedly sleeved on one end of the bolt, the lower end of the nut is slidably connected to the inside of the placement groove, elastic gaskets are fixedly installed on both sides of the inner end surface of the nut, the side surfaces of the elastic gasket are contact-connected to the ends of the bolts, the end of the placement groove is located around the bolt and a washer is fixedly installed, the upper end surface of the washer is contact-connected to the lower end surface of the nut, a sealing ring is fixedly installed on the side surface of the lower end of the nut, the sealing ring is slidably connected to the inside of the placement groove, the outer surface of the nut is coated with an anti-corrosion layer with a thickness of 1 mm, and the outer surface of the anti-corrosion layer is coated with a wear-resistant layer with a thickness of 1 mm. This type of nut improves its anti-loosening ability by means of a gasket, but long-term vibration occurs when the car is used, which may cause the nut to still fall off, affecting the normal use of the tire and threatening the safety of the user.

[0004] An existing anti-theft nut and nut assembly for locking automobile tires, with publication number: CN 115789061 A, comprises a bolt and a nut body; the nut body is threadedly connected with the bolt, the nut body is in a cylindrical structure, a cone is provided on the nut body, an inner chamber matched with the bolt is provided in the cone, the inner chamber is in a cone structure, and a plurality of limiting holes are evenly provided on the surface of the cone along its radial direction; a movable lifting seat is connected in the limiting hole, and a clamping seat for clamping on the surface of the bolt is connected on the lifting seat, and the anti-theft effect is improved by arranging a nut cap, but this arrangement makes it easy for thieves to destroy the bolt to achieve the purpose of theft, and there is still a risk of theft. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the purpose of the present invention is to provide a spherical tire anti-loosening nut, which has good anti-vibration and anti-loosening capabilities and makes the connection at the fixed point more stable.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spherical tire anti-loosening nut, comprising a nut body, a shock-absorbing ring, a connecting piece, and a bolt. A shock-absorbing ring is provided at the bottom of the nut body, a connecting piece is provided downwardly of the shock-absorbing ring, a bolt is provided below the connecting piece, and the bolt is connected to the nut body upwardly through a thread.

[0007] Preferably, the nut body is provided with an anti-corrosion coating made of epoxy paint.

[0008] Preferably, the nut body comprises an upper nut, a lower nut, and a locking washer; the upper nut and the lower nut are connected by threads, and an annular locking washer is provided between the upper nut and the lower nut.

[0009] Preferably, the locking gasket is a cut ring.

[0010] Preferably, the upper nut comprises an upper nut body, a plastic block, an internal thread 1, and a connecting internal thread. The top of the upper nut body is arc-shaped, the inner side of the upper nut body is hollow and provided with an internal thread 1 and a connecting internal thread, and a plastic block is provided on the top layer inside the upper nut body.

[0011] Preferably, the plastic block is made of low-density polyethylene or thermoplastic polyurethane.

[0012] Preferably, the lower nut includes a lower nut body, a shock-absorbing cavity, a connecting external thread, a second internal thread, and an open groove. The shock-absorbing cavity is provided inside the lower nut body, a connecting external thread is provided on the outer side of the upper part of the lower nut body, a second internal thread is provided inside the lower nut body, and an open groove is provided between the external threads.

[0013] Preferably, the inner circle diameter of the second internal thread is larger than the inner circle diameter of the first internal thread.

[0014] Preferably, the shock absorbing chamber is L-shaped, and is filled with silicone oil or hydraulic oil.

[0015] Preferably, the second internal thread is in opposite direction to the connecting external thread.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. A spherical tire anti-loosening nut of the present invention is provided with an upper nut and a lower nut, and is connected by a thread in the opposite direction to the internal thread, thereby improving the fixity and stability of the nut as a whole; 2. A spherical tire anti-loosening nut of the present invention is provided with a plastic block on the top of the upper nut, and the plastic block can be melted by the heat of the rotation step, so as to strengthen the connection between the bolt and the nut and increase the strength of the connection; 3. A spherical tire anti-loosening nut of the present invention is provided with an L-shaped shock-absorbing chamber in the lower nut and is filled with a shock-absorbing fluid, which can absorb the impact brought by the outside world, thereby achieving the purpose of shock absorption. The shock-absorbing ring arranged at the bottom of the nut can work together to improve the shock absorption of the nut and improve the safety of the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of a spherical tire anti-loosening nut of the present invention; Figure 2 It is a schematic diagram of the structure of a spherical tire anti-loosening nut of the present invention; Figure 3 It is a cross-sectional view of a spherical tire anti-loosening nut structure of the present invention; In the figure: 1-nut body, 11-upper nut, 111-upper nut body, 112-plastic block, 113-internal thread one, 114-connecting internal thread, 12-lower nut, 121-lower nut body, 122-shock-absorbing cavity, 123-connecting external thread, 124-internal thread two, 125-opening groove, 13-locking gasket, 2-shock-absorbing ring, 3-connecting piece, 4-bolt. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] See also Figure 1 A spherical tire anti-loosening nut in an embodiment of the present invention comprises a nut body 1, a shock-absorbing ring 2, a connecting piece 3, and a bolt 4. The nut body 1 is provided with a shock-absorbing ring 2 at the bottom, the shock-absorbing ring 2 is provided with a connecting piece 3 downward, and the connecting piece 3 is provided with a bolt 4 below. The bolt 4 is connected to the nut body 1 upward through a thread, and the nut body 1 is provided with an anti-corrosion coating made of epoxy paint.

[0020] See also Figure 2 In an embodiment of the present invention, a spherical tire anti-loosening nut is provided. The nut body 1 includes an upper nut 11, a lower nut 12, and a locking washer 13. The upper nut 11 and the lower nut 12 are connected by threads. An annular locking washer 13 is provided between the upper nut 11 and the lower nut 12. The locking washer 13 is a cut-off ring.

[0021] See also Figure 3In the embodiment of the present invention, a spherical tire anti-loosening nut is provided. The upper nut 11 includes an upper nut body 111, a plastic block 112, an internal thread 113, and a connecting internal thread 114. The top of the upper nut body 111 is in an arc shape. The inner side of the upper nut body 111 is hollow and provided with an internal thread 113 and a connecting internal thread 114. The top layer of the upper nut body 111 is provided with a plastic block 112. The plastic block 112 is made of low-density polyethylene or thermoplastic polyurethane. The lower nut 12 includes a lower nut body 121, a shock absorbing cavity 122, and a connecting An external thread 123, an internal thread 124, and an open groove 125. A shock-absorbing chamber 122 is provided inside the lower nut body 121. The shock-absorbing chamber 122 is L-shaped and is filled with silicone oil or hydraulic oil. A connecting external thread 123 is provided on the outer side of the upper part of the lower nut body 121. An internal thread 124 is provided inside the lower nut body 121. The inner ring diameter of the internal thread 124 is larger than the inner ring diameter of the internal thread 113. The internal thread 124 is opposite to the thread direction of the connecting external thread 123. An open groove 125 is provided between the external threads 123.

[0022] Working principle: When the spherical tire anti-loosening nut of the present invention is in use, the upper nut 11 and the lower nut 12 are first rotatably connected by connecting the internal thread 114 and the connecting external thread 123. Due to the setting of the open groove 125, the internal thread 124 at the top of the lower nut 12 can be squeezed inwardly and fixed, and the upper locking gasket 13 also strengthens the fixing force of the two. At this time, the bolt 4 is passed through the connecting piece 3 and rotatably connected to the nut body 1. As the bolt 4 rotates and steps to the top of the upper nut body 111, the plastic block 112 in the upper nut 11 is heated and melted by the heat generated by friction, filling the gap between the thread of the bolt 4 and the thread in the nut body 1, thereby improving the overall stability of the fastener structure. When the nut is used in a vibration environment, since a shock-absorbing ring 2 is also provided between the nut body 1 and the bolt 4, and the L-shaped shock-absorbing cavity 122 with a buffer provided inside the lower nut body 111 can absorb vibration impacts from the lateral and longitudinal directions, the overall anti-seismic performance of the nut is improved, and the safety of the nut for long-term use is ensured.

[0023] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A spherical tire anti-loosening nut, characterized in that: The invention comprises a nut body (1), a shock absorbing ring (2), a connecting piece (3), and a bolt (4), wherein the bottom of the nut body (1) is provided with a shock absorbing ring (2), the shock absorbing ring (2) is provided with a connecting piece (3) downward, the connecting piece (3) is provided with a bolt (4) below, and the bolt (4) is connected to the nut body (1) upward through a thread.

2. A spherical tire locknut according to claim 1, characterized in that: The nut body (1) is provided with an anti-corrosion coating made of epoxy paint.

3. A spherical tire locknut according to claim 1, characterized in that: The nut body (1) comprises an upper nut (11), a lower nut (12), and a locking washer (13); the upper nut (11) and the lower nut (12) are connected via threads; an annular locking washer (13) is provided between the upper nut (11) and the lower nut (12).

4. A spherical tire locking nut as claimed in claim 3, characterized in that: The locking gasket (13) is in the shape of a cut ring.

5. A spherical tire locking nut as claimed in claim 3, characterized in that: The upper nut (11) comprises an upper nut body (111), a plastic block (112), an internal thread (113), and a connecting internal thread (114); the top of the upper nut body (111) is arc-shaped; the inner side of the upper nut body (111) is hollow and provided with an internal thread (113) and a connecting internal thread (114); and the top layer of the upper nut body (111) is provided with a plastic block (112).

6. A spherical tire locknut as claimed in claim 5, characterized in that: The plastic block (112) is made of low-density polyethylene or thermoplastic polyurethane.

7. A spherical tire locknut as claimed in claim 3, characterized in that: The lower nut (12) comprises a lower nut body (121), a shock absorbing cavity (122), a connecting external thread (123), a second internal thread (124), and an open groove (125); the lower nut body (121) is provided with a shock absorbing cavity (122) inside, the upper outer side of the lower nut body (121) is provided with a connecting external thread (123), the lower nut body (121) is provided with a second internal thread (124), and the open groove (125) is provided between the external threads (123).

8. A spherical tire locknut according to claim 7, characterized in that: The inner circle diameter of the second internal thread (124) is greater than the inner circle diameter of the first internal thread (113).

9. A spherical tire locking nut according to claim 7, characterized in that: The shock absorbing cavity (122) is L-shaped, and the interior of the shock absorbing cavity (122) is filled with silicone oil or hydraulic oil.

10. A spherical tire lock nut according to claim 7, characterized in that: The second internal thread (124) has a thread direction opposite to that of the connecting external thread (123).

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