Novel bolt for automobile

Abstract

The utility model discloses a novel automobile bolt which is characterized in that the novel automobile bolt comprises a bolt head part, a connecting part and a bolt rod part, the outer diameter of the connecting part is larger than that of the bolt head part and that of the bolt rod part, a plurality of grooves are formed in the side, close to the bolt rod part, of the connecting part in the circumferential direction, and detachable elastic blocks are arranged in the grooves; during use, after the bolt is screwed down, the elastic blocks abut against the end face of the fixed part, the multiple elastic blocks can be matched with the surfaces, in different shapes, of the fixed part, and therefore good matching can be achieved, the connecting part has the large area, enough friction can be generated between the elastic blocks and the fixed part, and the elastic blocks can be tightly matched with the fixed part. Meanwhile, the elastic block is extruded to generate axial force on the connecting part, so that the bolt rod part is subjected to the axial force, the thread on the bolt rod part is tensioned with the corresponding screw hole, and compared with the prior art, the scheme has the advantage that the loosening probability of the bolt can be reduced when the automobile runs to generate larger vibration.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a novel bolt for automobiles. Background Art

[0002] Butterfly valve is a kind of bolt which is widely used in daily life. It is a very commonly used fastener and many bolts are also used in automobiles.

[0003] After the car bolt is inserted into the relevant connection part, a nut is used to achieve connection at the other end of the bolt. In actual use, the surface of the fixed part and the end face of the bolt head often do not match the matching surface. For example, the surface of the fixed part is a curved shoe surface, while the end face of the bolt head is usually a plane. Therefore, the matching surfaces between the two do not match, and the contact area is small, so the friction between the two is insufficient, and the car is prone to large vibrations when driving. Because of long-term use, it is easy to cause the bolt to loosen, causing the fixed part to loosen or even fall off, posing a greater safety hazard. Utility Model Content

[0004] The utility model aims to provide a novel automobile bolt to solve the problems mentioned in the above background technology.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a novel automobile bolt, comprising a bolt head, a connecting part and a bolt shank which are sequentially connected, the bolt head is hexagonal in shape, the bolt shank is provided with an external thread, the outer diameter of the connecting part is larger than the bolt head and the bolt shank, a side of the connecting part close to the bolt shank is provided with a plurality of grooves along the circumferential direction, a detachable elastic block is provided in the groove, the elastic block is made of an elastic alloy, and a portion of the elastic block extends out of the groove.

[0006] By adopting the above technical scheme, when in use, after the bolt rod and the fixed part are tightened together, one end of the connecting part close to the bolt rod fits with the fixed part, so that the elastic block abuts against the end face of the fixing part. A plurality of grooves are provided to install a plurality of elastic blocks, which can adapt to the surfaces of the fixed part with different shapes, so that a better fit can be achieved, and the connecting part has a large area, so that sufficient friction can be generated between the elastic block and the fixed part, and at the same time, the elastic block is squeezed to generate an axial force on the connecting part, so that the bolt rod is subjected to an axial force, so that the thread on the bolt rod is tensioned with the corresponding screw hole. Compared with the prior art, the above scheme can greatly reduce the probability of the bolt loosening when a large vibration is generated during the driving of the automobile.

[0007] As a further optimization of the utility model, a plurality of anti-skid grooves are provided along the circumferential direction on one side of the elastic block close to the bolt rod, and each anti-skid groove is extended in the radial direction of the connecting portion.

[0008] By adopting the above technical solution and providing the anti-slip groove, the friction between the elastic block and the fixed part is further increased.

[0009] As a further optimization of the utility model, a first magnet is provided in the groove, and a second magnet is provided in the elastic block, and the elastic block is magnetically adsorbed in the groove.

[0010] By adopting the above technical solution, the elastic block can be detached by means of magnetic connection.

[0011] As a further optimization of the present invention, a plurality of through holes are provided on one side of the connection portion close to the bolt head, and the plurality of through holes are connected to the plurality of grooves in a one-to-one correspondence.

[0012] By adopting the above technical solution, when disassembly is required, the elastic block can be pushed out from the groove through the hole, which is easy to operate.

[0013] As a further optimization of the utility model, a plurality of reinforcing rods are provided along the circumferential direction on one side of the connecting portion close to the bolt head, and one end of the reinforcing rod away from the connecting portion is welded and fixedly connected to the connecting head, and the bolt head, the reinforcing rod and the connecting portion form a triangular structure.

[0014] By adopting the above technical solution, the triangular structure has better stability, increases the deformation resistance of the connection part, and can reduce the occurrence of bending deformation when the connection part receives radial force.

[0015] The beneficial effects of the utility model are as follows: when in use, after the bolt rod is matched and tightened with the fixed part, one end of the connecting part close to the bolt rod is fitted with the fixed part, so that the elastic block abuts against the end face of the fixing part. A plurality of grooves are provided to install a plurality of elastic blocks, which can adapt to the surfaces of the fixed part with different shapes, so that a better fit can be achieved, and the connecting part has a large area, so sufficient friction can be generated between the elastic block and the fixed part, and at the same time, the elastic block is squeezed to generate an axial force on the connecting part, so that the bolt rod is subjected to an axial force, so that the thread on the bolt rod is tensioned with the corresponding screw hole. Compared with the prior art, the above scheme can greatly reduce the probability of the bolt loosening when a large vibration is generated during the driving of the automobile. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

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

[0019] Figure 4 It is a schematic diagram of the structure of the utility model when viewed from above.

[0020] The meanings of the numbers in the figure are: 11, bolt head; 12, connecting part; 121, groove; 13, bolt rod; 2, elastic block; 21, anti-slip groove; 31, first magnet; 32, second magnet; 4, reinforcement rod; 5, through hole. DETAILED DESCRIPTION

[0021] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0022] See attached Figure 1-4 The embodiment disclosed in the utility model further provides: a novel automobile bolt, comprising a bolt head 11, a connecting portion 12 and a bolt shank connected in sequence, the bolt head 11 is hexagonal in shape, the bolt shank 13 is provided with an external thread, and the outer diameter of the connecting portion 12 is larger than the bolt head 11 and the bolt shank 13;

[0023] A plurality of grooves 121 are provided along the circumferential direction on one side of the connecting portion 12 close to the bolt shank 13, and at least four grooves 121 are provided. A detachable elastic block 2 is provided in the groove 121. The elastic block 2 is made of an elastic alloy, and a portion of the elastic block 2 extends out of the groove 121. Specifically, a first magnet 31 is provided in the groove 121, and a second magnet 32 ​​is provided in the elastic block 2. The elastic block 2 is magnetically adsorbed in the groove 121, and the elastic block 2 is detachable by magnetic connection. Furthermore, a plurality of through holes 5 are provided on one side of the connecting portion 12 close to the bolt head 11, and at least four through holes 5 are provided and are connected and arranged in a one-to-one correspondence with the grooves 121. When disassembly is required, the elastic block 2 can be ejected from the groove 121 through the through holes 5, which is convenient for operation.

[0024] Furthermore, a plurality of anti-skid grooves 21 are provided along the circumferential direction on one side of the elastic block 2 close to the bolt shank 13, and each anti-skid groove 21 is extended in the radial direction of the connecting portion 12;

[0025] Furthermore, a plurality of reinforcing rods 4 are provided along the circumferential direction on one side of the connecting portion 12 close to the bolt head 11, and one end of the reinforcing rod 4 away from the connecting portion 12 is fixedly connected to the connecting head, and the bolt head 11, the reinforcing rod 4 and the connecting portion 12 form a triangular structure.

[0026] The principle of the utility model is as follows: when in use, after the bolt rod 13 is matched and tightened with the fixed part, the end of the connecting part 12 close to the bolt rod 13 is fitted with the fixed part, so that the elastic block 2 is in contact with the end surface of the fixed part, and multiple grooves 121 are provided to install multiple elastic blocks 2, which can adapt to the surfaces of the fixed part with different shapes, so as to achieve a better fit, and the connecting part 12 has a large area, so sufficient friction can be generated between the elastic block 2 and the fixed part, and the anti-slip groove 21 is provided to further increase the friction between the elastic block 2 and the fixed part;

[0027] At the same time, the elastic block 2 is squeezed to generate an axial force on the connecting part 12, so that the bolt shank 13 is subjected to an axial force. Therefore, the thread on the bolt shank 13 is tensioned with the corresponding screw hole, and the bolt head 11, the reinforcing rod 4 and the connecting part 12 form a triangular structure. The triangular structure has good stability and increases the deformation resistance of the connecting part 12. When the connecting part 12 receives a radial force, it can reduce the occurrence of bending deformation.

[0028] In summary, compared with the prior art, the above solution can greatly reduce the probability of bolts becoming loose when a large vibration occurs during driving of the vehicle.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. A new type of bolt for automobiles, characterized in that: The invention comprises a bolt head (11), a connecting portion (12) and a bolt shank which are connected in sequence, wherein the bolt head (11) is hexagonal in shape, the bolt shank (13) is provided with an external thread, the outer diameter of the connecting portion (12) is larger than the bolt head (11) and the bolt shank (13), a plurality of grooves (121) are circumferentially formed on one side of the connecting portion (12) close to the bolt shank (13), a detachable elastic block (2) is provided in the groove (121), and a portion of the elastic block (2) is arranged to extend out of the groove (121).

2. A new type of automobile bolt according to claim 1, characterized in that: A plurality of anti-slip grooves (21) are provided along the circumferential direction on one side of the elastic block (2) close to the bolt rod (13), and each anti-slip groove (21) is extended in the radial direction of the connecting portion (12).

3. A new type of automobile bolt according to claim 1, characterized in that: A first magnet (31) is provided in the groove (121), a second magnet (32) is provided in the elastic block (2), and the elastic block (2) is magnetically adsorbed in the groove (121).

4. A new type of automobile bolt according to claim 3, characterized in that: A plurality of through holes (5) are provided on one side of the connection portion (12) close to the bolt head (11), and the plurality of through holes (5) are connected to the plurality of grooves (121) in a one-to-one correspondence.

5. A novel automobile bolt according to claim 1, characterized in that: A plurality of reinforcing rods (4) are provided along the circumferential direction on one side of the connecting portion (12) close to the bolt head (11); one end of the reinforcing rod (4) away from the connecting portion (12) is fixedly connected to the connecting head; the bolt head (11), the reinforcing rod (4) and the connecting portion (12) form a triangular structure.

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