Bolt assembly for fixing automobile hub

Abstract

The utility model discloses a bolt assembly for fixing an automobile hub. The anti-loosening device has the advantages that the anti-loosening assembly is installed on the outer hexagonal rotating head, after the outer hexagonal rotating head makes contact with a mounting hole in an automobile hub, the adjusting stud can be rotated by rotating the inner hexagonal rotating head, after the adjusting stud rotates, on one hand, the star-shaped shifting wheel can move downwards, and on the other hand, the star-shaped shifting wheel can rotate; after the star-shaped shifting wheel rotates, the limiting column can be shifted out of the inner side of the outer hexagonal rotating head through the shifting block, so that after the limiting column abuts against a mounting hole in an automobile hub, secondary looseness prevention of the outer hexagonal rotating head is achieved, and meanwhile self-locking limiting of the star-shaped shifting wheel after rotation can be achieved under the thread self-locking effect of the adjusting stud; therefore, the automobile hub bolt assembly is effectively prevented from loosening and falling off when the automobile hub runs in a bumpy mode for a long time, and the potential safety hazard that the automobile hub loosens and falls off in the running process is prevented.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive wheel hub fixing accessories, specifically to a bolt assembly for fixing automotive wheel hubs. Background Technology

[0002] Wheel bolt assemblies are essential components used to secure the wheels to the axle of a car. They are typically made of high-strength steel or alloy materials, possessing sufficient strength and durability to ensure the tires are securely fixed while the vehicle is in motion.

[0003] Existing automotive wheel bolt assemblies mainly consist of an external hexagonal swivel and a connecting stud installed at the bottom of the swivel. While this type of assembly can install automotive wheels, it relies primarily on friction between the swivel and the wheel to prevent loosening. This relatively simple anti-loosening structure makes the wheel bolt assembly prone to loosening after prolonged periods of bumpy driving, potentially leading to the wheel falling off during operation and posing a safety hazard. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is to provide a bolt assembly for fixing a car wheel hub that has a secondary anti-loosening structure, which effectively prevents the car wheel hub bolt assembly from loosening and falling off during use, in light of the current state of the technology.

[0006] (II) Technical Solution

[0007] This utility model is achieved through the following technical solution: This utility model proposes a bolt assembly for fixing automobile wheel hubs, including an external hexagonal swivel head. A connecting stud is installed at the center of the bottom end of the external hexagonal swivel head. A groove is formed at the center of the top end of the external hexagonal swivel head. An installation cavity is formed at the center of the inner part of the external hexagonal swivel head. An anti-loosening component is installed between the groove and the installation cavity. The anti-loosening component includes an internal hexagonal swivel head, an adjusting stud, a limiting post, a spring, a lever, and a star-shaped lever. The adjusting stud is installed at the center of the bottom end of the groove. The internal hexagonal swivel head is connected to the top end of the adjusting stud. The star-shaped lever is connected to the bottom end of the adjusting stud. There are six limiting posts, which are installed in a ring on the side wall of the installation cavity. Each limiting post has a lever connected to the end facing the star-shaped lever. The lever contacts the outer side of the star-shaped lever. The spring is installed between the lever and the side wall of the installation cavity.

[0008] Furthermore, the portion of the external hexagonal head that mates with the limiting post is a hollow structure, and the limiting post and the external hexagonal head are in sliding engagement.

[0009] Furthermore, one end of the limiting post is welded to the toggle block, and the limiting post passes through the spring.

[0010] Furthermore, one end of the spring is welded to the toggle block, and the other end of the spring is welded to the side wall of the mounting cavity.

[0011] Furthermore, the adjusting stud is threaded to the bottom end of the groove, the adjusting stud is welded to the star-shaped dial, and the adjusting stud is welded to the internal hexagonal swivel.

[0012] Furthermore, the dial block is a wedge-shaped block, and the contact portion of the star-shaped dial wheel with the dial block has a wedge-shaped structure.

[0013] Furthermore, a gap is reserved between the bottom end of the star-shaped dial and the bottom end of the mounting cavity, and a gap is also reserved between the bottom end of the internal hexagonal swivel and the bottom end of the groove.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This invention utilizes an anti-loosening assembly installed on an external hexagonal swivel head, comprising an internal hexagonal swivel head, an adjusting stud, a limiting post, a spring, a lever, and a star-shaped dial. After the external hexagonal swivel head contacts the mounting hole on the car wheel hub, rotating the internal hexagonal swivel head causes the adjusting stud to rotate. This rotation of the adjusting stud causes the star-shaped dial to move downwards and rotate. The rotating star-shaped dial, with the aid of the lever, pushes the limiting post out from the inside of the external hexagonal swivel head, allowing it to contact the mounting hole on the car wheel hub. This achieves secondary anti-loosening of the external hexagonal swivel head. Simultaneously, the self-locking action of the adjusting stud's thread also enables the star-shaped dial to self-lock and limit its position after rotation. This effectively prevents the car wheel hub bolt assembly from loosening and falling off during prolonged bumpy driving, thus preventing the safety hazard of the car wheel hub loosening and falling off during operation. Attached Figure Description

[0017] Figure 1 This is a front sectional view of a bolt assembly for fixing automobile wheel hubs according to the present invention;

[0018] Figure 2 This is a structural schematic diagram of a bolt assembly for fixing automobile wheel hubs according to the present invention;

[0019] Figure 3 This is a top sectional view of the external hexagonal swivel head in the automobile wheel hub fixing bolt assembly described in this utility model;

[0020] Figure 4This utility model describes a bolt assembly for fixing automobile wheel hubs. Figure 1 Enlarged view of point A in the middle.

[0021] The annotations in the attached figures are explained as follows:

[0022] 1. External hexagonal head; 2. Connecting stud; 3. Groove; 4. Mounting cavity; 5. Anti-loosening component; 501. Internal hexagonal head; 502. Adjusting stud; 503. Limiting post; 504. Spring; 505. Toggle block; 506. Star-shaped dial. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] like Figures 1-4 As shown, a bolt assembly for fixing a car wheel hub in this embodiment includes an external hexagonal swivel head 1. A connecting stud 2 is installed at the center of the bottom end of the external hexagonal swivel head 1. A groove 3 is formed at the center of the top end of the external hexagonal swivel head 1. An installation cavity 4 is formed in the center of the inner part of the external hexagonal swivel head 1. An anti-loosening component 5 is installed between the groove 3 and the installation cavity 4. The anti-loosening component 5 includes an internal hexagonal swivel head 501, an adjusting stud 502, a limiting post 503, a spring 504, a lever 505, and a star-shaped lever 506. The adjusting stud 502 is installed at the center of the bottom end of the groove 3. The internal hexagonal swivel head 501 is connected to the top end of the adjusting stud 502. The star-shaped lever 506 is connected to the bottom end of the adjusting stud 502. There are six limiting posts 503, which are installed in a ring on the side wall of the installation cavity 4. Each limiting post 503 has a lever 505 connected to the end facing the star-shaped lever 506. The lever 505 contacts the outer side of the star-shaped dial 506. The spring 504 is installed between the lever 505 and the side wall of the mounting cavity 4. When the connecting stud 2 is screwed into the car wheel hub by the external hexagonal head 1, the internal hexagonal head 501 is rotated with the help of an external wrench. After the internal hexagonal head 501 rotates, the adjusting stud 502 will rotate. After the adjusting stud 502 rotates, the star-shaped dial 506 will rotate. After the star-shaped dial 506 rotates, the lever 505 will push the limiting post 503 out from the inside of the external hexagonal head 1 so that the limiting post 503 can abut against the mounting hole on the car wheel hub, thereby achieving secondary anti-loosening of the external hexagonal head 1. At the same time, under the thread self-locking action of the adjusting stud 502, the star-shaped dial 506 can also achieve self-locking and limiting after rotation, thereby effectively preventing the car wheel hub bolt assembly from loosening and falling off when the car wheel hub is driven on bumpy roads for a long time.

[0025] like Figures 1-4As shown, in this embodiment, the parts of the external hexagonal swivel head 1 that mate with the limiting post 503 are all hollow structures. The limiting post 503 slides with the external hexagonal swivel head 1, ensuring that the limiting post 503 can easily slide out of the external hexagonal swivel head 1. One end of the limiting post 503 is welded to the lever 505, and the limiting post 503 passes through the spring 504. The welding connection ensures that the limiting post 503 moves synchronously with the lever 505. One end of the spring 504 is welded to the lever 505, and the other end of the spring 504 is welded to the side wall of the mounting cavity 4. The spring 504 can easily reset the limiting post 503 into the external hexagonal swivel head 1 when the star-shaped lever 506 rotates in the opposite direction. The adjusting stud 502 is threadedly connected to the bottom end of the groove 3, and the adjusting stud 502 and the star-shaped lever... The adjusting stud 502 is welded to the internal hexagon head 501. After the adjusting stud 502 rotates, it will drive the star-shaped dial wheel 506 to rotate. While rotating, the star-shaped dial wheel 506 will move downward relative to the dial block 505. When the star-shaped dial wheel 506 is not separated from the dial block 505, the limiting post 503 can be fully pushed out. The dial block 505 is a wedge-shaped block. The part of the star-shaped dial wheel 506 that contacts the dial block 505 is a wedge-shaped structure. There is a gap between the bottom end of the star-shaped dial wheel 506 and the bottom end of the mounting cavity 4. There is also a gap between the bottom end of the internal hexagon head 501 and the bottom end of the groove 3. This design can ensure that when the adjusting stud 502 moves downward during rotation, both the star-shaped dial wheel 506 and the internal hexagon head 501 have a certain amount of room to move.

[0026] The specific implementation process of this embodiment is as follows: When installing the car wheel hub, firstly, the external hexagonal head 1 is rotated under the action of an external wrench to screw the connecting stud 2 into the car wheel hub, thus realizing the installation of the car wheel hub. Then, the internal hexagonal head 501 is rotated with the help of an external wrench. After the internal hexagonal head 501 rotates, the adjusting stud 502 will rotate. After the adjusting stud 502 rotates, the star-shaped dial 506 will rotate. After the star-shaped dial 506 rotates, the limiting post 503 will be pulled out from the inside of the external hexagonal head 1 by the help of the lever 505. After the limiting post 503 abuts against the mounting hole on the car wheel hub, the external hexagonal head 1 will be locked in place for a second time. At the same time, under the self-locking action of the thread of the adjusting stud 502, the star-shaped dial 506 can also be self-locked and limited after rotation, thus effectively preventing the car wheel hub bolt assembly from loosening and falling off during long-term bumpy driving, and preventing the safety hazard of the car wheel hub loosening and falling off during driving.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bolt assembly for fixing automobile wheel hubs, characterized in that: The device includes an external hexagonal swivel (1), a connecting stud (2) installed at the center of the bottom end of the external hexagonal swivel (1), a groove (3) formed at the center of the top end of the external hexagonal swivel (1), and a mounting cavity (4) formed at the center of the inner part of the external hexagonal swivel (1). An anti-loosening component (5) is installed between the groove (3) and the mounting cavity (4). The anti-loosening component (5) includes an internal hexagonal swivel (501), an adjusting stud (502), a limiting post (503), a spring (504), a lever (505), and a star-shaped lever (506). The adjusting stud (502) is installed in the bottom end of the groove (3). The internal hexagonal head (501) is connected to the top of the adjusting stud (502), the star-shaped dial wheel (506) is connected to the bottom of the adjusting stud (502), there are six limiting posts (503), the six limiting posts (503) are installed in a ring on the side wall of the mounting cavity (4), each limiting post (503) is connected to a dial block (505) at the end facing the star-shaped dial wheel (506), the dial block (505) is in contact with the outside of the star-shaped dial wheel (506), and the spring (504) is installed between the dial block (505) and the side wall of the mounting cavity (4).

2. The bolt assembly for fixing an automobile wheel hub according to claim 1, characterized in that: The parts of the external hexagonal swivel (1) that mate with the limiting post (503) are all hollow structures, and the limiting post (503) and the external hexagonal swivel (1) are in sliding engagement.

3. The bolt assembly for fixing an automobile wheel hub according to claim 2, characterized in that: One end of the limiting post (503) is welded to the toggle block (505), and the limiting post (503) passes through the spring (504).

4. The bolt assembly for fixing an automobile wheel hub according to claim 3, characterized in that: One end of the spring (504) is welded to the toggle block (505), and the other end of the spring (504) is welded to the side wall of the mounting cavity (4).

5. The bolt assembly for fixing an automobile wheel hub according to claim 1, characterized in that: The adjusting stud (502) is threaded to the bottom end of the groove (3), the adjusting stud (502) is welded to the star-shaped dial (506), and the adjusting stud (502) is welded to the internal hexagonal head (501).

6. The automobile wheel hub fixing bolt assembly according to claim 5, characterized in that: The dial block (505) is a wedge-shaped block, and the contact part of the star-shaped dial wheel (506) with the dial block (505) has a wedge-shaped structure.

7. The bolt assembly for fixing an automobile wheel hub according to claim 1, characterized in that: A gap is reserved between the bottom end of the star-shaped dial (506) and the bottom end of the mounting cavity (4), and a gap is also reserved between the bottom end of the internal hexagonal head (501) and the bottom end of the groove (3).

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