CN214578252U

CN214578252U - Automobile wheel hub bolt that joint strength is high

Info

Publication number: CN214578252U
Application number: CN202120673152.3U
Authority: CN
Inventors: 赵秀东; 赵培源
Original assignee: Czzt Motorkits Co ltd
Current assignee: Czzt Motorkits Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-11-02
Anticipated expiration: 2031-04-01

Abstract

The utility model discloses an automobile wheel hub bolt, aiming at providing an automobile wheel hub bolt with high connection strength, the key point of the technical proposal is an automobile wheel hub bolt with high connection strength, which comprises a body, the body comprises a bolt head and a bolt rod fixedly connected with the bolt head, the outer surface of the bolt rod is provided with external threads, one side of the bolt rod, far away from the bolt head, is provided with a countersunk hole, the circumference of one side of the bolt rod, far away from the bolt head, is uniformly distributed with a plurality of milling grooves, an expansion rod matched with the countersunk hole is arranged in the countersunk hole, the expansion rod is in sliding connection with the countersunk hole, one side of the expansion rod, far away from the bolt head, is a conical head, one side of the conical head, far away from the bolt head, is provided with an inner hexagonal groove, one side of the bolt rod, far away from the bolt head, is provided with a sliding hole, the side of the sliding hole, far away from the bolt head, runs through the conical head, and the size of the sliding hole is smaller than the inner hexagonal groove, the slide hole internal fixation is equipped with the elastic component, the utility model is suitable for a bolt technical field.

Description

Automobile wheel hub bolt that joint strength is high

Technical Field

The utility model belongs to the technical field of the bolt, refer in particular to an automobile wheel hub bolt that joint strength is high.

Background

The hub bolt is the high strength bolt that the wheel was connected to the vehicle, undertakes the connection of lighter torsion between car outer hub shell and the tire, and traditional hub bolt only simply adopts hub bolt and tire screw cap to install fixedly, and joint strength is not very ideal, and if the car was gone on the road of jolting for a long time, the risk that the tire screw cap had not hard up the drop had very big potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an automobile wheel hub bolt that joint strength is high.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an automobile wheel hub bolt that joint strength is high, includes the body, the body includes the bolt head and rather than fixed connection's shank of bolt, the shank of bolt surface is equipped with the external screw thread, it is equipped with the counter sink to keep away from bolt head one side in the shank of bolt, the shank of bolt keeps away from bolt head one side circumference evenly distributed and is equipped with a plurality of milling flutes, be equipped with the expansion link with it looks adaptation in the counter sink, expansion link and counter sink sliding connection, one side that the bolt head was kept away from to the expansion link is the conical head.

The utility model discloses further set up to: the bolt is characterized in that a sliding hole is formed in one side, away from the bolt head, of the bolt rod, the conical head penetrates through one side, away from the bolt head, of the sliding hole, the size of the sliding hole is smaller than that of the inner hexagonal groove, an elastic piece is fixedly arranged in the sliding hole, and a lubricating layer is fixedly arranged on the inner wall of the sliding hole.

The utility model discloses further set up to: the elastic part comprises a top head and a spring, wherein two ends of the spring are respectively fixedly connected with the bottom surface of the sliding hole and the top head, and the surface of the top head is in contact with the inner wall of the sliding hole and is in sliding connection with the inner wall of the sliding hole.

The utility model discloses further set up to: the spring internal fixation is equipped with the telescopic link, telescopic link one end and the bottom surface fixed connection of slide opening, the other end and top fixed connection.

The utility model discloses further set up to: the taper of the conical head is 1: 25.

the utility model has the advantages that:

1. the expansion rod is arranged in the bolt rod, and meanwhile, the end, away from the bolt head, of the bolt rod is provided with the milling grooves, so that the end, away from the bolt head, of the bolt rod can be pushed open by the conical head on the expansion rod, the connection strength between the bolt rod and an external tire screw cap is improved, the risk of falling off of the tire screw cap is avoided, and the stroke safety of an automobile is effectively improved;

2. through set up the elastic component in the expansion link, can make through the elastic component when installing the tire screw cap, the extrusion force exists to the tire screw cap in the elastic component to make and be difficult to receive the vibration and cause not hard up between tire screw cap and the shank of bolt, further prevent that the tire screw cap from taking place the risk that drops.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the tire mounting screw cap of the present invention;

fig. 3 is a bottom view of the present invention;

in the drawings: 1. a body; 10. a bolt head; 11. a bolt shank; 2. a countersunk hole; 3. milling a groove; 4. an expansion rod; 40. a conical head; 5. a slide hole; 6. an elastic member; 60. ejecting the head; 61. a spring; 62. a telescopic rod; 7. a lubricating layer; 8. a tyre screw cap.

Detailed Description

The invention is further described in the following with reference to fig. 1 to 3 in a specific embodiment:

the utility model provides an automobile wheel hub bolt that joint strength is high, includes body 1, body 1 includes bolt head 10 and rather than fixed connection's shank of

bolt

11, 11 surfaces of shank of bolt are equipped with the external screw thread, it is equipped with counter sink 2 to keep away from bolt head 10 one side in the shank of bolt 11, shank of bolt 11 keeps away from bolt head 10 one side circumference evenly distributed and is equipped with a plurality of milling flutes 3, be equipped with the expansion link 4 of looks adaptation with it in the counter sink 2, expansion link 4 and 2 sliding connection in counter sink, one side that bolt head 10 was kept away from to expansion link 4 is conical head 40, above-mentioned

bolt head

10 and 11 preferred adoption integrated into one piece of shank of bolt.

It can be seen from above-mentioned structure, through set up expansion link 4 in shank of bolt 11, shank of bolt 11 keeps away from bolt head 10 one end simultaneously through setting up a plurality of milling flutes 3 for the one end that shank of bolt 11 kept away from bolt head 10 can be backed down by conical head 40 on the expansion link 4, thereby improves the joint strength between shank of bolt 11 and the outside tire screw cap 8, avoids tire screw cap 8 to take place the risk that drops, effectively improves the stroke safety of car.

As an optional embodiment, a sliding hole 5 is formed in a side of the bolt rod 11 away from the bolt head 10, a tapered head 40 penetrates through a side of the sliding hole 5 away from the bolt head 10, an elastic member 6 is fixedly arranged in the sliding hole 5, a lubricating layer 7 is fixedly arranged on an inner wall of the sliding hole 5, the lubricating layer 7 is preferably in adhesive connection with the inner wall of the sliding hole 5, and the lubricating layer 7 is preferably made of polytetrafluoroethylene.

It can be seen from above-mentioned structure that, through set up elastic component 6 in expansion link 4, can make through elastic component 6 when installing tire turnbuckle 8, there is the extrusion force elastic component 6 to tire turnbuckle 8 to make and be difficult to receive the vibration and cause not hard up between tire turnbuckle 8 and the shank of bolt 11, further prevent that tire turnbuckle 8 from taking place the risk that drops, set up lubricating layer 7 simultaneously, can reduce the frictional resistance between the inner wall of elastic component 6 and slide opening 5.

As an optional embodiment, the elastic member 6 includes a plug 60 and a spring 61, two ends of the spring 61 are respectively and fixedly connected with the bottom surface of the sliding hole 5 and the plug 60, the surface of the plug 60 is in contact with and slidably connected with the inner wall of the sliding hole 5, and two ends of the spring 61 are preferably clamped.

It can be seen from the above structure that, through the contact and sliding connection between the top 60 and the inner wall of the sliding hole 5, the possibility that outside dust enters the inside of the sliding hole 5 is reduced after the screw cap 8 of the tire is removed, the influence on the deformation of the spring 61 is avoided, and meanwhile, the sliding friction resistance between the top 60 and the inner wall of the sliding hole 5 is reduced through the lubricating layer 7.

As an alternative embodiment, a telescopic rod 62 is fixedly arranged in the spring 61, one end of the telescopic rod 62 is fixedly connected with the bottom surface of the slide hole 5, the other end of the telescopic rod 62 is fixedly connected with the top 60, and the two ends of the telescopic rod 62 are preferably connected by adhesion.

It can be seen from the above structure that the telescopic rod 62 is arranged in the spring 61, so that the structural strength of the elastic member 6 is improved, and the service life of the elastic member 6 is effectively prolonged.

As an alternative embodiment, the taper of the conical head 40 is 1: 25.

it can be seen from the above structure that the taper of the conical head 40 should not be too large, otherwise the tyre screw cap 8 cannot be mounted or the thread slipping phenomenon occurs, and the subsequent detachment is not convenient.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an automobile wheel hub bolt that joint strength is high, includes body (1), body (1) includes bolt head (10) and shank of bolt (11) rather than fixed connection, shank of bolt (11) surface is equipped with external screw thread, characterized by: keep away from bolt head (10) one side in shank of bolt (11) and be equipped with counter sink (2), bolt shank (11) are kept away from bolt head (10) one side circumference evenly distributed and are equipped with a plurality of milling flutes (3), be equipped with expansion link (4) with it looks adaptation in counter sink (2), expansion link (4) and counter sink (2) sliding connection, one side that bolt head (10) were kept away from in expansion link (4) is conical head (40).

2. The automobile hub bolt with high connection strength as claimed in claim 1, is characterized in that: bolt pole (11) are kept away from bolt head (10) one side and are equipped with slide opening (5), one side that bolt head (10) were kept away from in slide opening (5) runs through conical head (40), slide opening (5) internal fixation is equipped with elastic component (6), fixed lubrication layer (7) that is equipped with on the inner wall of slide opening (5).

3. The automobile hub bolt with high connection strength as claimed in claim 2, is characterized in that: elastic component (6) are including top (60) and spring (61), spring (61) both ends respectively with the bottom surface and top (60) fixed connection of slide opening (5), top (60) surface contacts and sliding connection with the inner wall of slide opening (5).

4. The automobile hub bolt with high connection strength as claimed in claim 3, is characterized in that: the spring (61) internal fixation is equipped with telescopic link (62), telescopic link (62) one end and the bottom surface fixed connection of slide opening (5), the other end and top (60) fixed connection.

5. The automobile hub bolt with high connection strength as claimed in claim 1, is characterized in that: the taper of the conical head (40) is 1: 25.