CN217177123U

CN217177123U - Anti-fatigue alloy steel bolt

Info

Publication number: CN217177123U
Application number: CN202123275649.9U
Authority: CN
Inventors: 王家穗
Original assignee: Ningbo Xingsheng Petroleum Pipe Fittings Manufacturing Co ltd
Current assignee: Ningbo Xingsheng Petroleum Pipe Fittings Manufacturing Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-08-12
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to the technical field of bolts, in particular to an anti-fatigue alloy steel bolt, which comprises a bolt body, wherein one end of the bolt body is fixedly connected with a bolt head; the other end of the bolt body is in threaded connection with a nut; a limiting block is connected to the inside of the bolt body in a sliding mode, one side of the limiting block is of a sawtooth structure, and the sawtooth structure is abutted to the inner wall of the nut; the bolt body is internally and slidably connected with an adjusting part, and the adjusting part is used for adjusting the position of the limiting block. The utility model provides an antifatigue alloy steel bolt wherein is provided with adjusting part and stopper, mutually supports between stopper and the adjusting part, makes the stopper contradict the nut through adjusting part, is favorable to strengthening being connected between nut and the bolt body to avoid appearing not hard up the condition that breaks away from between screw and the nut at the in-process of vibration, convenient and practical.

Description

Anti-fatigue alloy steel bolt

Technical Field

The utility model relates to a bolt technical field especially relates to an antifatigue alloy steel bolt.

Background

A bolt is a mechanical part, and a cylindrical threaded fastener matched with a nut needs to be matched with the nut and is used for fastening and connecting two parts with through holes.

When an existing hexagon bolt head bolt is used, a nut and a bolt are prone to loosening and disengaging in the vibration process, so that bolt fastening devices are prone to failure, and installation and connection of the devices are not facilitated.

To the above problem, the utility model provides an antifatigue alloy steel bolt.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that an antifatigue alloy steel bolt is provided, can solve current hexagon bolt head bolt in the use, the nut appears becoming flexible the condition that breaks away from with the bolt easily at the in-process of vibration, leads to bolt-up ware thing to become invalid, is unfavorable for the erection joint's of ware thing problem.

(II) technical scheme

The utility model provides a technical scheme that above-mentioned technical problem adopted is: the anti-fatigue alloy steel bolt comprises a bolt body, wherein one end of the bolt body is fixedly connected with a bolt head; the other end of the bolt body is in threaded connection with a nut;

a limiting block is connected to the inner part of the bolt body in a sliding manner, one side of the limiting block is of a sawtooth structure, and the sawtooth structure is abutted to the inner wall of the nut;

an adjusting part is connected to the inner part of the bolt body in a sliding manner and is used for adjusting the position of the limiting block; wherein, mutually support between stopper and the adjusting part, make the stopper contradict the nut through the adjusting part, be favorable to strengthening being connected between nut and the bolt body to avoid appearing the not hard up condition that breaks away from between screw and the nut at the in-process of vibration.

Preferably, an inner groove and an adjusting groove communicated with the inner groove are formed in the bolt body, the size of the adjusting groove is smaller than that of the inner groove, and one end of the adjusting groove penetrates through the lower end of the bolt body; the size of the adjusting groove is smaller than that of the inner groove, and the adjusting block can be effectively prevented from falling off from the inner groove by the structure.

The adjusting part comprises an adjusting block which is in sliding connection with the inner groove, the side wall of the adjusting block is in contact with the limiting block, one end of the adjusting block is connected with an adjusting rod matched with the adjusting groove, the adjusting rod is in sliding connection with the adjusting groove, and the size of the adjusting rod is larger than that of the adjusting groove; the special structure of the adjusting rod is convenient for pushing the adjusting rod towards the inner part of the inner groove; the size of the adjusting groove is smaller than that of the inner groove, and accordingly the width of the adjusting rod is smaller than that of the adjusting block.

Preferably, an adjusting spring is connected between one end of the adjusting block, which is far away from the adjusting rod, and the inner wall of the inner groove; wherein, adjusting spring's setting does benefit to the regulating block and adjusts the pole and reset.

Preferably, the joint between the adjusting block and the adjusting rod is provided with an inclined plane which inclines towards the middle of the adjusting rod from top to bottom, and the joint between the adjusting groove and the inner groove is provided with an inclined groove matched with the inclined plane.

Preferably, sliding grooves are symmetrically arranged in the bolt body, one end of each sliding groove penetrates through the side wall of the bolt body, the other end of each sliding groove is communicated with the inner groove, and the limiting blocks can slide in the sliding grooves; the tail part of the limiting block can be in contact with the adjusting block and the adjusting rod through the structure.

Preferably, the section of one end of the limiting block, which is in contact with the adjusting block, is of a semicircular structure; the structure is beneficial to more stable moving contact of the limiting block when the limiting block moves between the adjusting block and the adjusting rod.

Preferably, an auxiliary groove is formed in the bolt body at a position close to the sliding groove, an auxiliary block matched with the auxiliary groove is connected to the lower end of the limiting block, the auxiliary block is slidably connected with the auxiliary groove, and an auxiliary spring is connected between the auxiliary block and the auxiliary groove; wherein, auxiliary spring has the tractive effect to supplementary piece, mutually supports between supplementary piece and the auxiliary spring for the stopper is more stable when removing in the sliding tray.

Preferably, the inner wall of the adjusting groove is provided with a fixed magnet, and the side wall of the adjusting rod is provided with an adsorption magnet adsorbed with the fixed magnet; wherein, when the promotion was adjusted the pole and was removed towards the inside groove, adjusted the pole and removed suitable position in the adjustment tank, adsorb the magnetite promptly and adsorb mutually with fixed magnetite, and at this moment, the stopper removes the inside nut of not conflicting of sliding tray.

(III) advantageous effects

1. The utility model provides an antifatigue alloy steel bolt wherein is provided with adjusting part and stopper, mutually supports between stopper and the adjusting part, makes the stopper contradict the nut through adjusting part, is favorable to strengthening being connected between nut and the bolt body to avoid appearing not hard up condition of breaking away from, convenient and practical between screw and the nut at the in-process of vibration.

2. The utility model provides an antifatigue alloy steel bolt, under the normal condition, receive regulating spring's effect, make the regulating block be located the lower extreme position of inside groove, the regulating block has the conflict effect to the stopper simultaneously, when promoting the regulation pole to the inside groove, it promotes the regulating block and removes towards inside the groove to adjust the pole, the regulating block is at the in-process that removes, the stopper by contact gradually with the regulating block and contact with adjusting the pole, because the width size of adjusting the pole is less than the size of regulating block width, the tractive effect of auxiliary spring adds in, make the stopper move towards the inside groove from the sliding tray, and then removed the conflict effect of stopper to the nut, the convenience is demolishd the nut.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partially enlarged schematic view of a portion a in fig. 1 according to the present invention.

Wherein: 1 bolt body, 11 internal grooves, 12 adjusting grooves, 13 inclined grooves, 14 sliding grooves, 15 auxiliary grooves, 16 fixed magnets, 2 bolt heads, 3 nuts, 4 limiting blocks, 40 sawtooth structures, 5 adjusting parts, 51 adjusting blocks, 52 adjusting rods, 53 adjusting springs, 54 inclined surfaces, 55 auxiliary blocks, 56 auxiliary springs and 57 absorb magnetism.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1-2, the fatigue-resistant alloy steel bolt comprises a bolt body 1, wherein a bolt head 2 is fixedly connected to one end of the bolt body 1; the other end of the bolt body 1 is in threaded connection with a nut 3;

a limiting block 4 is connected to the inside of the bolt body 1 in a sliding manner, one side of the limiting block 4 is of a sawtooth structure 40, and the sawtooth structure 40 is abutted to the inner wall of the nut 3;

the bolt body 1 is internally and slidably connected with an adjusting part 5, and the adjusting part 5 is used for adjusting the position of the limiting block 4.

In the technical scheme, mutually support between stopper 4 and the adjusting part 5, make stopper 4 contradict nut 3 through adjusting part 5, be favorable to strengthening being connected between nut 3 and the bolt body 1 to avoid the condition that the in-process of vibration appears becoming flexible and breaks away from between screw and the nut.

An inner groove 11 and an adjusting groove 12 communicated with the inner groove 11 are arranged in the bolt body 1, the size of the adjusting groove 12 is smaller than that of the inner groove 11, and one end of the adjusting groove 12 penetrates through the lower end of the bolt body 1; the size of the adjustment groove 12 is smaller than that of the inner groove 11, and this structure can effectively prevent the adjustment block 51 from falling off from the inner groove 11.

The adjusting part 5 comprises an adjusting block 51 connected with the inner groove 11 in a sliding manner, the side wall of the adjusting block 51 is contacted with the limiting block 4, one end of the adjusting block 51 is connected with an adjusting rod 52 matched with the adjusting groove 12, the adjusting rod 52 is connected with the adjusting groove 12 in a sliding manner, and the size of the adjusting rod 52 is longer than that of the adjusting groove 12; wherein, the special structure of the adjusting rod 52 facilitates the adjusting rod 52 to be pushed towards the inner part of the inner groove 11; the size of the adjustment groove 12 is smaller than that of the inner groove 11, and accordingly, the width of the adjustment lever 52 is smaller than that of the adjustment block 51.

An adjusting spring 53 is connected between one end of the adjusting block 51 far away from the adjusting rod 52 and the inner wall of the inner groove 11; wherein, the adjusting spring 53 is provided to facilitate the resetting of the adjusting block 51 and the adjusting rod 52.

An inclined surface 54 inclined from top to bottom toward the middle of the adjusting rod 52 is arranged at the joint between the adjusting block 51 and the adjusting rod 52, and an inclined groove 13 matched with the inclined surface 54 is arranged at the joint between the adjusting groove 12 and the inner groove 11.

In the above technical solution, the adjusting rod 52 is pushed towards the inside of the inner groove 11, so that the adjusting rod 52 pushes the adjusting block 51 to extrude the adjusting spring 53 to move towards the inside of the inner groove 11, and the purpose of adjusting the limiting block 4 is achieved in the process.

Sliding grooves 14 are symmetrically arranged in the bolt body 1, one end of each sliding groove 14 penetrates through the side wall of the bolt body 1, the other end of each sliding groove 14 is communicated with the inner groove 11, and the limiting block 4 can slide in the sliding groove 14; the structure enables the tail part of the limiting block 4 to be in contact with the adjusting block 51 and the adjusting rod 52.

Referring to fig. 2, the section of one end of the limiting block 4 contacting the adjusting block 51 is a semicircular structure; wherein, the structure is beneficial to more stable moving contact when the limiting block 4 moves between the adjusting block 51 and the adjusting rod 52.

An auxiliary groove 15 is formed in the bolt body 1 and close to the sliding groove 14, an auxiliary block 55 matched with the auxiliary groove 15 is connected to the lower end of the limiting block 4, the auxiliary block 55 is connected with the auxiliary groove 15 in a sliding mode, and an auxiliary spring 56 is connected between the auxiliary block 55 and the auxiliary groove 15; the auxiliary spring 56 has a pulling effect on the auxiliary block 55, and the auxiliary block 55 and the auxiliary spring 56 are matched with each other, so that the limiting block 4 is more stable when moving in the sliding groove 14.

When the adjustable nut screwing tool works specifically, under the normal state, under the action of the adjusting spring 53, the adjusting block 51 is located at the lower end position in the inner groove 11, meanwhile, the adjusting block 51 has an abutting effect on the limiting block 4, when the adjusting rod 52 is pushed into the inner groove 11, the adjusting rod 52 pushes the adjusting block 51 to move towards the inner part of the inner groove 11, the adjusting block 51 is in the moving process, the limiting block 4 gradually contacts with the adjusting block 51 to contact with the adjusting rod 52, because the width size of the adjusting rod 52 is smaller than that of the adjusting block 51, and in addition, the pulling effect of the auxiliary spring 56 enables the limiting block 4 to move towards the inner groove 11 from the sliding groove 14, so that the abutting effect of the limiting block 4 on the nut 3 is eliminated, and the nut 3 is convenient to be detached.

A fixed magnet 16 is arranged on the inner wall of the adjusting groove 12, and an adsorption magnet 57 adsorbed with the fixed magnet 16 is arranged on the side wall of the adjusting rod 52; when the adjusting rod 52 is pushed to move towards the inner groove 11, the adjusting rod 52 moves to a proper position in the adjusting groove 12, namely, the absorption magnet 57 and the fixed magnet 16 are absorbed, and at this time, the limiting block 4 moves to the inside of the sliding groove 14 and does not collide with the nut 3.

When the bolt works specifically, after the nut 3 is installed, the adjusting block 51 is positioned at the lower end position in the inner groove 11 under the action of the adjusting spring 53, meanwhile, the adjusting block 51 has an abutting effect on the limiting block 4, at the moment, the limiting block 4 has an abutting effect on the nut 3 under the abutting effect of the adjusting block 51, so that the nut 3 is fastened on the outer side wall of the bolt body 1, the sawtooth-shaped structure 40 on one side of the limiting block 4 is clamped in the thread groove on the inner wall of the nut 3, and the nut 3 is further prevented from being separated from the bolt body 1 during vibration; when the nut 3 needs to be removed, when the adjusting rod 52 is pushed to move towards the inner groove 11, the adjusting rod 52 moves to a proper position in the adjusting groove 12, namely the absorption magnet 57 is absorbed by the fixed magnet 16, meanwhile, the adjusting rod 52 pushes the adjusting block 51 to move towards the inner part of the inner groove 11, and in the moving process of the adjusting block 51, the limiting block 4 gradually contacts with the adjusting rod 52 from the contact with the adjusting block 51, and due to the fact that the width size of the adjusting rod 52 is smaller than that of the adjusting block 51 and the drawing effect of the auxiliary spring 56, the limiting block 4 moves towards the inner groove 11 from the sliding groove 14, the interference effect of the limiting block 4 on the nut 3 is removed, and the nut 3 is convenient to be removed; when the nut 3 is installed, the stopper 4 is retracted into the sliding groove 14 and the inner groove 11 according to the above method, at this time, the nut 3 is rotatably installed on the bolt body 1, and then the adjusting rod 52 is pulled out to the outside, so that the absorption magnet 57 and the fixed magnet 16 are desorbed, and under the action of the adjusting spring 53 and the return spring, the adjusting block 51 is positioned at one end of the inner groove 11 close to the adjusting groove 12, and the stopper 4 is extended from the sliding groove 14 to abut against the nut 3, so that the bolt body 1 and the nut are fixed to fasten the object.

The utility model discloses in be provided with adjusting part 5 and stopper 4, mutually support between stopper 4 and the adjusting part 5, make stopper 4 contradict nut 3 through adjusting part 5, be favorable to strengthening being connected between nut 3 and the bolt body 1 to avoid the condition that becomes flexible and break away from to appear at the in-process of vibration between screw and the nut.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The anti-fatigue alloy steel bolt comprises a bolt body (1), and is characterized in that one end of the bolt body (1) is fixedly connected with a bolt head (2); the other end of the bolt body (1) is in threaded connection with a nut (3);

a limiting block (4) is connected to the inside of the bolt body (1) in a sliding mode, one side of the limiting block (4) is of a sawtooth-shaped structure (40), and the sawtooth-shaped structure (40) is abutted to the inner wall of the nut (3);

the bolt is characterized in that an adjusting part (5) is connected to the inside of the bolt body (1) in a sliding mode, and the adjusting part (5) is used for adjusting the position of the limiting block (4).

2. The fatigue resistant alloy steel bolt according to claim 1, wherein: an inner groove (11) and an adjusting groove (12) communicated with the inner groove (11) are formed in the bolt body (1), the size of the adjusting groove (12) is smaller than that of the inner groove (11), and one end of the adjusting groove (12) penetrates through the lower end of the bolt body (1);

the adjusting part (5) comprises an adjusting block (51) which is in sliding connection with the inner groove (11), the side wall of the adjusting block (51) is in contact with the limiting block (4), one end of the adjusting block (51) is connected with an adjusting rod (52) matched with the adjusting groove (12), the adjusting rod (52) is in sliding connection with the adjusting groove (12), and the size of the adjusting rod (52) is longer than that of the adjusting groove (12).

3. A fatigue resistant alloy steel bolt according to claim 2, wherein: an adjusting spring (53) is connected between one end of the adjusting block (51) far away from the adjusting rod (52) and the inner wall of the inner groove (11).

4. A fatigue resistant alloy steel bolt according to claim 3, wherein: an inclined surface (54) which inclines towards the middle of the adjusting rod (52) from top to bottom is arranged at the joint between the adjusting block (51) and the adjusting rod (52), and an inclined groove (13) matched with the inclined surface (54) is arranged at the joint between the adjusting groove (12) and the inner groove (11).

5. A fatigue resistant alloy steel bolt according to claim 3, wherein: the bolt is characterized in that sliding grooves (14) are symmetrically formed in the bolt body (1), one end of each sliding groove (14) penetrates through the side wall of the bolt body (1), the other end of each sliding groove (14) is communicated with the corresponding inner groove (11), and the limiting blocks (4) can slide in the sliding grooves (14).

6. The fatigue resistant alloy steel bolt according to claim 5, wherein: the bolt body (1) is internally provided with an auxiliary groove (15) close to the sliding groove (14), the lower end of the limiting block (4) is connected with an auxiliary block (55) matched with the auxiliary groove (15), the auxiliary block (55) is in sliding connection with the auxiliary groove (15), and an auxiliary spring (56) is connected between the auxiliary block (55) and the auxiliary groove (15).

7. A fatigue resistant alloy steel bolt according to claim 2, wherein: the inner wall of the adjusting groove (12) is provided with a fixed magnet (16), and the side wall of the adjusting rod (52) is provided with an adsorption magnet (57) adsorbed by the fixed magnet (16).