Self-locking automobile bolt

Abstract

The utility model discloses a self-locking type automobile bolt which comprises a nut cap, a threaded column body is fixed to the bottom end of the nut cap, a wear-resisting groove is formed in the outer side wall of the nut cap, clamping springs are installed on the two sides of a fixing ring layer respectively, one side of each clamping spring is connected with a connecting block, one side of each connecting block is connected with a locking ball, and the locking ball is connected with a locking nut. Limiting grooves are formed in the two sides of the threaded column body. The threaded column body is fixed to the bottom end of the nut cover, then the limiting groove is formed in the threaded column body, and the external threads are distributed on the outer portion of the threaded column body, so that the positions of the external threads can be used for connecting, installing and rotating in the installing process, the locking ball can move in the rotating process, and the locking ball can rotate in the rotating process. And during movement, the clamping spring and the connecting block are matched with each other, the position of the clamping spring can be contracted, the locking ball can be moved and pressed into the limiting groove, the locking and reinforcing capacity is achieved, and therefore the overall using and locking capacity is well improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile bolts, in particular to a self-locking automobile bolt. Background Art

[0002] A car is a means of transportation. As a car can carry goods and people, it is widely used by people. A variety of mechanical parts are used in the assembly of a car, and they are used for the connection structure of the car. Among them, automobile bolts are mechanical parts used in the assembly of a car. Automobile bolts are cylindrical threaded fasteners equipped with nuts. They are a type of fastener consisting of a head and a cylinder with external threads. Generally, they are used in conjunction with nuts. Their essential work is to fasten and connect two parts with through holes.

[0003] Most of the automobile bolts are used to connect the wheel hub to the mounting plate of the car body to securely fix the wheel hub during high-speed driving. Therefore, in order to improve the safety of automobile structure and driving, general automobile bolts are high-strength bolts. If the locking is insufficient during the connection process, it will directly affect the stability after the connection, and then directly affect the stability of the car during driving. At the same time, the exposure of the automobile bolts will also affect the service life of the automobile bolts. Utility Model Content

[0004] The purpose of the utility model is to provide a self-locking automobile bolt to solve the problem proposed in the above background technology that in order to improve the safety of automobile structure and driving, general automobile bolts are high-strength bolts, and if the locking phenomenon occurs during the connection process, it is easy to directly affect the stability effect after the connection, and then it is easy to directly affect the stability of the automobile during driving, and it is also easy to affect the service life of the automobile bolts due to the exposure of the automobile bolts.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-locking automobile bolt, comprising a nut cover, a threaded column body is fixed to the bottom end of the nut cover, a wear-resistant groove is provided on the outer wall of the nut cover, a fixing ring layer is fixed at a position near the bottom end of the threaded column body, retaining springs are installed on both sides of the fixing ring layer, a connecting block is connected to one side of the retaining spring, a locking ball is connected to one side of the connecting block, and limiting grooves are provided inside the two sides of the threaded column body.

[0006] Preferably, the limiting grooves are symmetrically distributed about the central axis of the threaded column body, and an elastic connection is formed between the retaining spring and the connecting block.

[0007] Preferably, an outer wall of the threaded column body is fixed with an external thread, and the wear-resistant grooves are evenly distributed on the outer wall of the nut cover.

[0008] Preferably, the outer side wall of the threaded column body is coated with an anti-corrosion layer, a reinforcing rod is fixed inside the threaded column body, and a cross rod is fixed on one side of the reinforcing rod.

[0009] Preferably, the reinforcing rods are evenly distributed inside the threaded column body, and the cross rods are distributed in a cross shape between the reinforcing rods.

[0010] Preferably, a cross groove is provided at the middle position of the top end of the nut cover, strip grooves are provided at both ends of the cross groove, strip blocks are installed inside the strip groove, and connecting grooves are provided at both ends of the strip groove.

[0011] Preferably, the strip grooves are symmetrically distributed about the central axis of the nut cover, and the connecting grooves are symmetrically distributed about the central axis of the strip grooves.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the self-locking automobile bolt not only improves the locking ability of the automobile bolt, but also improves the use strength and convenience of the automobile bolt;

[0013] (1) The threaded column body is fixed at the bottom end of the nut cover, and then the limiting groove is opened inside the threaded column body, and external threads are distributed on the outside of the threaded column body. Therefore, the position of the external threads can be used for connection and installation. During installation, the threaded column body is rotated, and the locking ball can move during the rotation. During the movement, the retaining spring and the connecting block cooperate with each other, so that the position of the retaining spring can be contracted, and the locking ball can be moved and pressed into the limiting groove, thereby completing the locking reinforcement capability, thereby better improving the overall locking capability;

[0014] (2) By coating the anti-corrosion layer on the outside of the threaded column body, it has external protection capabilities during operation, and then fixing the reinforcing rod inside the threaded column body, so that it has the purpose of strength support during operation, and the cross rods are distributed between the reinforcing rods, so that the overall use strength is better improved during operation, thereby improving the service life of the threaded column body;

[0015] (3) A cross slot is provided at the top of the nut cover for connection with a tool, and then a strip slot is provided inside the nut cover and connected with the tool by a connecting slot. This makes it convenient for people to contact the strip block from the connecting slot, thereby improving the overall hand-touch ability and facilitating manual installation of the nut cover and the threaded column body as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2It is a partial bottom view structural schematic diagram of the utility model;

[0018] Figure 3 It is a partial top view structural schematic diagram of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the threaded column main body of the utility model.

[0020] In the figure: 1. nut cover; 2. wear-resistant groove; 3. threaded column body; 4. external thread; 5. locking ball; 6. fixing ring layer; 7. limit groove; 8. retaining spring; 9. connecting block; 10. cross groove; 11. strip groove; 12. strip block; 13. connecting groove; 14. anti-corrosion layer; 15. reinforcing rod; 16. cross rod. 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 1-4 The utility model provides an embodiment: a self-locking automobile bolt, comprising a nut cover 1, a threaded column body 3 is fixed to the bottom end of the nut cover 1, a wear-resistant groove 2 is provided on the outer wall of the nut cover 1, a fixing ring layer 6 is fixed near the bottom end of the threaded column body 3, a retaining spring 8 is installed on both sides of the retaining ring layer 6, a connecting block 9 is connected to one side of the retaining spring 8, a locking ball 5 is connected to one side of the connecting block 9, and limiting grooves 7 are provided inside the two sides of the threaded column body 3.

[0023] The limiting grooves 7 are symmetrically distributed about the central axis of the threaded column body 3 , and an elastic connection is formed between the clamping spring 8 and the connecting block 9 .

[0024] An external thread 4 is fixed to the outer wall of the threaded column body 3 , and the wear-resistant grooves 2 are evenly distributed on the outer wall of the nut cover 1 .

[0025] The outer wall of the threaded column body 3 is coated with an anti-corrosion layer 14 , a reinforcing rod 15 is fixed inside the threaded column body 3 , and a cross rod 16 is fixed on one side of the reinforcing rod 15 .

[0026] The reinforcing rods 15 are evenly distributed inside the threaded column body 3 , and the cross rods 16 are distributed between the reinforcing rods 15 in a cross shape.

[0027] A cross groove 10 is provided at the middle position of the top of the nut cover 1 , and strip grooves 11 are provided at both ends of the cross groove 10 . A strip block 12 is installed inside the strip groove 11 , and connecting grooves 13 are provided at both ends of the strip groove 11 .

[0028] The strip grooves 11 are symmetrically distributed with respect to the central axis of the nut cover 1 , and the connecting grooves 13 are symmetrically distributed with respect to the central axis of the strip groove 11 .

[0029] Further, external threads 4 are distributed on the outside of the threaded column body 3, and wear-resistant grooves 2 are also evenly distributed on the outside of the nut cover 1, so the main purpose of the wear-resistant grooves 2 is also to facilitate operation;

[0030] Furthermore, the clamping spring 8 and the connecting block 9 cooperate with each other, so that the clamping spring 8 can be contracted when it moves, so that the locking ball 5 can be moved and pressed into the inner part of the limiting groove 7 to achieve the purpose of locking;

[0031] Further, cross bars 16 are distributed between the reinforcing bars 15. The cross bars 16 are designed in an "X" shape, which serves the purpose of connecting and reinforcing the reinforcing bars 15. At the same time, the uniform distribution of the reinforcing bars 15 can achieve the purpose of corresponding uniform support.

[0032] Furthermore, the strip groove 11 is provided inside the nut cover 1 and connected thereto by a connecting groove 13, so that it is convenient for people to contact the strip block 12 from the position of the connecting groove 13, and the strip block 12 is used to help people to manually rotate the threaded column body 3 to complete the fine adjustment work;

[0033] A further anti-corrosion layer 14 is coated on the outside of the threaded column body 3, and the main purpose of the anti-corrosion layer 14 is to prevent the outside of the threaded column body 3 from rusting, corroding, etc., and to prevent the problem of breakage due to corrosion.

[0034] Working principle: First, during the operation, the threaded column body 3 is fixed at the bottom end of the nut cover 1, and then the limiting groove 7 is opened inside the threaded column body 3, and the external thread 4 is distributed on the outside of the threaded column body 3, so the position of the external thread 4 can be used for connection and installation, and it is rotated during installation. At this time, the locking ball 5 can move during the rotation, and the retaining spring 8 and the connecting block 9 cooperate with each other during the movement, so that the position of the retaining spring 8 can be contracted, and the locking ball 5 can be moved and pressed to the inside of the limiting groove 7, thereby completing the locking and reinforcement work, and during use, the reinforcing rod 15 is fixed inside the threaded column body 3, and the cross rod 16 is distributed between the reinforcing rods 15, so that the threaded column body 3 has a longer service life.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A self-locking automobile bolt, comprising a nut cover (1), Features: A threaded column body (3) is fixed at the bottom end of the nut cover (1), a wear-resistant groove (2) is provided on the outer wall of the nut cover (1), a fixing ring layer (6) is fixed at a position close to the bottom end of the threaded column body (3), a retaining spring (8) is installed on both sides of the retaining ring layer (6), a connecting block (9) is connected to one side of the retaining spring (8), a locking ball (5) is connected to one side of the connecting block (9), and limiting grooves (7) are provided inside on both sides of the threaded column body (3).

2. A self-locking automobile bolt according to claim 1, Features: The limiting grooves (7) are symmetrically distributed about the central axis of the threaded column body (3), and an elastic connection is formed between the clamping spring (8) and the connecting block (9).

3. A self-locking automobile bolt according to claim 1, Features: An external thread (4) is fixed to the outer wall of the threaded column body (3), and the wear-resistant grooves (2) are evenly distributed on the outer wall of the nut cover (1).

4. A self-locking automobile bolt according to claim 1, Features: The outer wall of the threaded column body (3) is coated with an anti-corrosion layer (14), a reinforcing rod (15) is fixed inside the threaded column body (3), and a cross rod (16) is fixed on one side of the reinforcing rod (15).

5. A self-locking automobile bolt according to claim 4, Features: The reinforcing rods (15) are evenly distributed inside the threaded column body (3), and the cross rods (16) are distributed between the reinforcing rods (15) in a cross shape.

6. A self-locking automobile bolt according to claim 1, Features: A cross groove (10) is provided at the middle position of the top of the nut cover (1), strip grooves (11) are provided at both ends of the cross groove (10), a strip block (12) is installed inside the strip groove (11), and connecting grooves (13) are provided at both ends of the strip groove (11).

7. A self-locking automobile bolt according to claim 6, Features: The strip-shaped grooves (11) are symmetrically distributed with respect to the central axis of the nut cover (1), and the connecting grooves (13) are symmetrically distributed with respect to the central axis of the strip-shaped grooves (11).

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