Tire bolt and nut locking structure

Abstract

The utility model discloses a tire bolt nut locking structure which comprises a bolt, a nut and a reinforcing rod, the nut is connected to the bolt in a threaded mode, a through hole is formed in the nut, the reinforcing rod comprises a rod part and a bent part which is formed after one end of the rod part is bent, a groove is formed in the outer wall of the end of the bolt in the axial direction, and the bolt is arranged in the groove. A movable block capable of sliding in the axial direction is arranged in the groove, a spring is fixed to the inner bottom of the groove, the end of the spring is connected with the movable block, the width of the groove is larger than the diameter of the bent part, a clamping groove is formed in the portion, on the side wall of the groove, of the bolt, a groove is formed in the outer wall of the end of the bolt in the axial direction, and the clamping groove is connected with the movable block. The connecting portion of the rod portion and the bent portion is sleeved with a protective shell, the protective shell is made of alloy materials, a plurality of reinforcing ribs are arranged on the surface of the rod portion, the bent portion is sleeved with an anti-skid sleeve, a plurality of protruding anti-skid blocks are arranged on the surface of the anti-skid sleeve, and the outer diameter of the anti-skid sleeve is matched with the inner diameter of the clamping groove.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, and particularly relates to a locking structure for tire bolts and nuts. Background Art

[0002] At present, the existing tire bolts are usually composed of a bolt body, a washer sleeved on the bolt body, and a locking nut, and the washer and the locking nut are in flat contact connection.

[0003] As the prior art, Chinese Patent CN220850317U proposes a nut locking structure for tire bolts, which sets a reinforcing rod to prevent the nut from loosening. However, in this technical solution, the end of the reinforcing rod is fixed in the groove at the end of the bolt by an embedding method. However, the tire will have a certain vibration during the vehicle driving process, and the reinforcing rod may come out of the groove, and the connection is not firm enough, and it is still easy to cause the nut to loosen. Moreover, the reinforcing rod has no reinforcing structure, and it may also be deformed or broken under a large external force, which is also easy to cause the nut to loosen. Therefore, there is still room for improvement. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a locking structure for tire bolts and nuts to solve the problems raised in the above background art.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: A locking structure for tire bolts and nuts includes a bolt, a nut, and a reinforcing rod. The nut is threadedly connected to the bolt. A perforation is provided on the nut. The reinforcing rod includes a rod portion and a bent portion formed by bending one end of the rod portion. The outer wall of the end of the bolt is axially provided with a groove. An active block that can slide axially is provided in the groove. A spring is fixed at the inner bottom of the groove, and the end of the spring is connected to the active block. The width of the groove is greater than the diameter of the bent portion. A clamping groove is provided on the side wall of the bolt in the groove.

[0006] With the above technical scheme, during installation, the nut is threadedly connected to the bolt. After the nut is screwed to the tensioning position, the nut is rotated in a small angle in the reverse direction. Then, the rod portion of the reinforcing rod is inserted into the perforation. Then, the bent portion is extended into the opening of the groove and slides axially, thereby pushing the active block to slide. The active block slides and compresses the spring. When the bent portion moves to align with the clamping groove, the nut is rotated forward to make the nut re-tighten. At the same time, the reinforcing rod is also rotated in a small angle, so that the bent portion enters the clamping groove, and the bent portion is separated from the active block. The spring resets and elongates, thereby pushing the active block to slide in the reverse direction. After the active block slides, it aligns with the clamping groove, thereby firmly locking the bent portion in the clamping groove. When the tire vibrates during the vehicle driving process, the bent portion will not come out, and the connection is firm and stable, thereby avoiding the nut from loosening.

[0007] As a further optimization of the present utility model, an anti-slip sleeve is sleeved on the bent portion. The surface of the anti-slip sleeve is provided with a plurality of protruding anti-slip blocks, and the outer diameter of the anti-slip sleeve is adapted to the inner diameter of the card slot.

[0008] With the above technical solutions, the anti-slip sleeve is provided to increase the anti-slip performance of the surface of the bent portion, reduce the occurrence of slipping, protect the bent portion, reduce its wear, and thus extend the service life.

[0009] As a further optimization of the present utility model, a protective shell is sleeved at the connection between the rod portion and the bent portion, and the protective shell is made of alloy material.

[0010] With the above technical solutions, the protective shell can increase the structural strength of the connection between the rod portion and the bent portion and prevent the angle between the rod portion and the bent portion from deforming.

[0011] As a further optimization of the present utility model, a plurality of reinforcing ribs are provided on the surface of the rod portion.

[0012] With the above technical solutions, the reinforcing ribs increase the structural strength of the rod portion and reduce the situations of the rod portion being deformed and broken by external forces.

[0013] As a further optimization of the present utility model, a sliding groove is axially provided on the inner wall of the groove, and the movable block is provided with a sliding block and is slidably connected to the sliding groove.

[0014] The beneficial effects of the present utility model are as follows: During installation, the nut is threadedly connected to the bolt. After the nut is screwed to the tensioning position, the nut is rotated in a small angle in the reverse direction. Then, the rod portion of the reinforcing rod is inserted into the through hole, and then the bent portion is extended into the opening of the groove and slid axially, thereby pushing the movable block to slide. The movable block slides and compresses the spring. When the bent portion moves to align with the card slot, the nut is rotated forward to re-tension the nut. At the same time, the reinforcing rod also rotates in a small angle, so that the bent portion enters the card slot. The bent portion is separated from the movable block, and the spring resets and elongates, thereby pushing the movable block to slide in the reverse direction. After the movable block slides, it aligns with the card slot, thereby firmly locking the bent portion in the card slot. When the tire vibrates during the driving of the vehicle, the bent portion will not come out, and the connection is firm and stable, thereby avoiding the loosening of the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the present utility model;

[0016] Figure 2 is a structural schematic diagram of the reinforcing rod in the present utility model.

[0017] Meanings of the reference numerals in the figure: 11, bolt; 12, nut; 121, perforation; 13, reinforcing rod; 131, rod portion; 132, bent portion; 2, groove; 21, sliding groove; 3, spring; 4, movable block; 5, clamping groove; 6, anti-slip sleeve; 61, anti-slip block; 7, protective shell; 8, reinforcing rib. Detailed implementation manner

[0018] This specific embodiment is only an interpretation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

[0019] See the appendix Figure 1-2 , this embodiment disclosed by the present invention is further provided with: a locking structure for a tire bolt 11 and nut 12, including a bolt 11, a nut 12 and a reinforcing rod 13, the nut 12 is threadedly connected to the bolt 11, and a perforation 121 is provided on the nut 12;

[0020] The reinforcing rod 13 includes a rod portion 131 and a bent portion 132 formed by bending one end of the rod portion 131;

[0021] A movable block 4 that can slide axially is provided in the groove 2. Specifically, a sliding groove 21 is axially provided on the inner wall of the groove 2. The movable block 4 is provided with a slider and is slidably connected to the sliding groove 21. A spring 3 is fixed to the inner bottom of the groove 2, and the end of the spring 3 is connected to the movable block 4. The width of the groove 2 is greater than the diameter of the bent portion 132, and a clamping groove 5 is provided on the side wall of the groove 2 for the bolt 11;

[0022] Furthermore, a groove 2 is axially provided on the outer wall of the end of the bolt 11. A protective shell 7 is sleeved at the connection between the rod portion 131 and the bent portion 132. The protective shell 7 is made of alloy material. A plurality of reinforcing ribs 8 are provided on the surface of the rod portion 131. An anti-slip sleeve 6 is sleeved on the bent portion 132. A plurality of protruding anti-slip blocks 61 are provided on the surface of the anti-slip sleeve 6. The outer diameter of the anti-slip sleeve 6 is adapted to the inner diameter of the clamping groove 5;

[0023] The principle of the present utility model is as follows: During installation, the nut 12 is threadedly connected to the bolt 11. After screwing the nut 12 to the tensioning position, the nut 12 is rotated in the reverse direction by a small angle. Then, the rod portion 131 of the reinforcing rod 13 is inserted into the through hole 121. Next, the bent portion 132 is extended into the opening of the groove 2 and slides axially, thereby pushing the movable block 4 to slide. The movable block 4 slides and compresses the spring 3. When the bent portion 132 moves to align with the card slot 5, the nut 12 is rotated forward to re-tension the nut 12. At the same time, the reinforcing rod 13 also rotates by a small angle, causing the bent portion 132 to enter the card slot 5. The bent portion 132 is disengaged from the movable block 4, and the spring 3 resets and elongates, thereby pushing the movable block 4 to slide in the reverse direction. After the movable block 4 slides, it aligns with the card slot 5, thereby firmly locking the bent portion 132 in the card slot 5. When the tire vibrates during vehicle driving, the bent portion 132 will not come out, and the connection is firm and stable, thereby preventing the nut 12 from loosening;

[0024] A non-slip sleeve 6 is provided to increase the anti-slip performance of the surface of the bent portion 132 and reduce the occurrence of slippage. The non-slip sleeve 6 protects the bent portion 132 and reduces its wear, thereby extending the service life. The protective shell 7 can increase the structural strength of the connection between the rod portion 131 and the bent portion 132, preventing the angle between the rod portion 131 and the bent portion 132 from deforming. The reinforcing rib 8 increases the structural strength of the rod portion 131 and reduces the situation of the rod portion 131 being deformed and broken by external forces.

[0025] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can be made. These improvements and modifications made above should also be regarded as the protection scope of the present utility model.

Claims

1. A tire bolt and nut locking structure, comprising a bolt (11), a nut (12) and a reinforcing rod (13), wherein the nut (12) is threadedly connected to the bolt (11), and a through hole (121) is formed on the nut (12), characterized in that: The reinforcing rod (13) comprises a rod portion (131) and a bent portion (132) formed after one end of the rod portion (131) is bent. A groove (2) is provided on the outer wall of the end of the bolt (11) along the axial direction. A movable block (4) which can slide along the axial direction is provided in the groove (2). A spring (3) is fixed to the inner bottom of the groove (2). The end of the spring (3) is connected to the movable block (4). The width of the groove (2) is greater than the diameter of the bent portion (132). The bolt (11) is provided with a clamping groove (5) on the side wall of the groove (2).

2. A tire bolt and nut locking structure according to claim 1, characterized in that: An anti-slip sleeve (6) is sleeved on the bent portion (132), a surface of the anti-slip sleeve (6) is provided with a plurality of raised anti-slip blocks (61), and the outer diameter of the anti-slip sleeve (6) is matched with the inner diameter of the slot (5).

3. A tire bolt and nut locking structure according to claim 1, characterized in that: A protective shell (7) is sleeved at the connection between the rod portion (131) and the bent portion (132), and the protective shell (7) is made of alloy material.

4. A tire bolt and nut locking structure according to claim 1, characterized in that: A plurality of reinforcing ribs (8) are provided on the surface of the rod portion (131).

5. The tire bolt and nut locking structure according to claim 1, characterized in that: The inner wall of the groove (2) is provided with a sliding groove (21) along the axial direction, and the movable block (4) is provided with a sliding block which is slidably connected with the sliding groove (21).

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