CN216447282U

CN216447282U - Non-loose bolt combination

Info

Publication number: CN216447282U
Application number: CN202123042032.2U
Authority: CN
Inventors: 汲春岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-06
Anticipated expiration: 2031-12-06

Abstract

The utility model relates to a non-loose bolt combination, which belongs to the field of fasteners and comprises a bolt body and a nut body, wherein a limiting part used in combination with the nut body is arranged on the bolt body in a threaded connection manner, the limiting part consists of a limiting nut and a plurality of locking blocks fixed on the limiting nut, the limiting nut is in a threaded connection with the bolt body, and the nut body is in a threaded connection with the bolt body and then is abutted against the locking blocks; the bolt fastening device effectively solves the problem that the existing bolt is easy to loosen during fixing, achieves the effect of fastening and not loosening, and has the advantages of simple structure, easiness in operation and remarkable practicability.

Description

Non-loose bolt combination

The technical field is as follows:

the utility model relates to the field of fasteners, in particular to a non-loose bolt combination.

Background art:

bolts are a common fastener used in a wide variety of mechanical and electrical devices. For common application occasions, no strict requirements are made on the anti-loosening property of the bolt. However, in the fields of automobiles, aviation, aerospace, nuclear power plants and the like, many devices or parts work in a vibration environment for a long time, and the bolts and the nuts are easy to loosen, so that the normal work of the devices is affected, and even safety accidents can be caused. In order to solve the problem of looseness prevention of a fastener, the utility model provides a bolt combination which does not loosen, and aims to solve the defects and shortcomings of the prior art.

The utility model has the following contents:

the utility model aims to overcome the defects of the prior art and provide a bolt combination without loosening.

The technical scheme adopted by the utility model is as follows:

the utility model provides a not hard up bolt combination, includes bolt body and nut body, threaded connection be equipped with on the bolt body with the locating part that nut body combination used, the locating part comprises limit nut and a plurality of lock blocks of fixing on limit nut, limit nut threaded connection be in on the bolt body, nut body threaded connection be in behind the bolt body butt on the lock block.

Preferably, a plurality of locking blocks are arranged at the tops of the locking blocks, the locking blocks are arranged in the limiting nut central annular array, and the inner diameter of the locking block top annular array is smaller than the outer diameter of the bolt body threads.

Preferably, the locking block is arranged in an arc shape, the limiting nut is in threaded connection with the rear of the bolt body, and the top of the locking block abuts against the external thread of the bolt body.

Preferably, an annular groove is formed in the bottom of the nut body and abuts against the outer side of the top of the locking block.

The utility model has the beneficial effects that: the bolt fixing structure effectively solves the problem that the existing bolt is easy to loosen during fixing, the bolt body and the limiting piece are fixed through the combined use of the nut body and the limiting piece, the limiting piece is guaranteed not to loosen after being fixed, and the fastening and loosening effects are realized.

Description of the drawings:

FIG. 1: the utility model is a three-dimensional structure schematic diagram.

FIG. 2: the utility model is illustrated in fig. 1 with the nut body removed.

FIG. 3: the three-dimensional explosion diagram of the utility model.

FIG. 4: the present invention is a cross-sectional view.

FIG. 5: the structure of the limit nut is schematically shown.

FIG. 6: the utility model provides a cross-sectional view of a limit nut.

FIG. 7: the structure of the nut body is schematically shown.

In the figure: 01. the bolt comprises a bolt body 02, a nut body 03, a limiting piece 301, a limiting nut 302, a locking block 04 and an annular groove.

The specific implementation mode is as follows:

the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in fig. 1-6, a bolt assembly without loosening includes a bolt body 01 and a nut body 02, a limiting member 03 used in combination with the nut body 02 is disposed on the bolt body 01 in a threaded connection manner, the limiting member 03 is composed of a limiting nut 301 and a plurality of locking blocks 302 fixed on the limiting nut 301, the limiting nut 301 is in a threaded connection with the bolt body 01, and the nut body 02 is in a threaded connection with the bolt body 01 and then abuts against the locking blocks 302.

The scheme is further optimized to be set as follows: as shown in fig. 4-5, a plurality of locking blocks 302 are disposed on the top of the locking block 302, the locking blocks 302 are disposed in a central annular array of the limiting nuts 301, the inner diameter of the annular array on the top of the locking blocks 302 is smaller than the outer diameter of the threads of the bolt body 01, and after the limiting nuts 301 are screwed on the bolt body 01, each locking block 302 is tightly attached to the outer threads of the bolt body 01.

The scheme is further optimized to be set as follows: as shown in fig. 5, the locking block 302 is arc-shaped, the limiting nut 301 is screwed on the bolt body 01, the top of the locking block 302 abuts against the external thread of the bolt body 01, and the arc-shaped locking block 302 is convenient for the nut body 02 to be screwed to abut against the locking block 302 for limitation.

The scheme is further optimized to be set as follows: as shown in fig. 4 and 7, the annular groove 004 is formed at the bottom of the nut body 02, the annular groove 004 abuts against the outer side of the top of the locking block 302, after the nut body 02 is screwed on the bolt body 01, the nut body 02 is continuously screwed, the annular groove 004 at the bottom of the nut body 02 abuts against the locking block 302 gradually, it needs to be explained that the hardness of the locking block 302 is greater than that of the external thread of the bolt body 01, so that under the abutting of the annular groove 004 at the bottom of the nut body 02, the locking block 302 is contracted and extrudes the external thread of the bolt body 01, the external thread of the bolt body 01 is extruded and recessed, a groove is formed at the extruding position of the locking block 302, the locking block 302 is located in the groove, and the locking nut 301 cannot loosen in the bolt body 01 by clockwise or counterclockwise rotation.

In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a not loose bolt combination, includes bolt body (01) and nut body (02), its characterized in that: threaded connection is equipped with locating part (03) that nut body (02) combination was used on bolt body (01), locating part (03) comprises spacing nut (301) and a plurality of latch segment (302) of fixing on spacing nut (301), spacing nut (301) threaded connection is in on bolt body (01), nut body (02) threaded connection is in bolt body (01) back butt is in on latch segment (302).

2. The loose-proof bolt combination according to claim 1, wherein: the locking block (302) top is equipped with a plurality of locking blocks (302), locking block (302) with limit nut (301) center annular array sets up, the internal diameter that locking block (302) top annular array set up is less than the external diameter of bolt body (01) screw thread.

3. The loose-proof bolt combination according to claim 1, wherein: the locking block (302) is arranged in an arc shape, the limiting nut (301) is in threaded connection with the rear of the bolt body (01), and the top of the locking block (302) abuts against the external thread of the bolt body (01).

4. The loose-proof bolt combination according to claim 1, wherein: annular groove (004) have been seted up to nut body (02) bottom, annular groove (004) butt on latch segment (302) top outside.