CN214698728U

CN214698728U - Double-nut fastening bolt

Info

Publication number: CN214698728U
Application number: CN202120225777.3U
Authority: CN
Inventors: 梅艳
Original assignee: Shenyang Jieke Power Machinery Equipment Co ltd
Current assignee: Shenyang Jieke Power Machinery Equipment Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-11-12
Anticipated expiration: 2031-01-26

Abstract

The utility model discloses a double-nut fastening bolt, which relates to the technical field of mechanical parts and solves the problem that the normal performance of equipment is affected and even the equipment fails because the nut is easy to rotate along the bolt due to the influence of external force such as vibration and the like in each link of equipment transportation, operation and the like when the existing double-nut bolt is used, and the problem that the equipment is easy to be loosened and even fall off due to the influence of external force such as vibration and the like, the bolt and the nut are ensured to be firmly connected.

Description

Double-nut fastening bolt

Technical Field

The utility model relates to a machine part technical field, more specifically say, it relates to a two nut fastening bolt.

Background

The nuts are nuts, and are screwed together with the bolts or the screws to play a role in fastening, and the double-nut fastening bolt is an assembly for driving the two nuts on the bolt.

The bolt fastener is the most widely used fastener form, and when the existing double-nut bolt is used, in all links such as equipment transportation and operation, due to the influence of external forces such as vibration, the nut is easy to rotate along the bolt, so that the phenomenon that the threaded connection is loosened or even falls off is caused, and the normal performance of the equipment is influenced or even the equipment is caused to break down.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a bolt and nut firm in connection's two nut fastening bolt.

In order to achieve the above purpose, the utility model provides a following technical scheme: a double-nut fastening bolt comprises a bolt, wherein nuts are connected to the bolt in a threaded manner, the number of the nuts is two, and an extrusion piece for extruding the nuts is arranged on the bolt;

the extruded part includes the sliding block, the one end fixedly connected with fixed block of bolt, the one end that the fixed block was kept away from to the bolt is seted up flutedly, the inside of recess is equipped with elastic component, elastic component keeps away from the one end sliding block of recess tank bottom and connects, and the equal sliding connection in the left and right sides of sliding block has the L-shaped piece, works as when the L-shaped piece contacts with the sliding block, two distance between the L-shaped piece is less than the width value of recess.

Preferably, the elastic component comprises a spring, one end of the spring is fixedly connected with the groove bottom of the groove, and the other end of the spring is fixedly connected with the sliding block.

Preferably, fixedly connected with stopper on the spring, the gliding spout of confession stopper is seted up to the bolt inner chamber, and the stopper is located the inside of spout.

Preferably, the top fixedly connected with of sliding block draws the piece, and draws the plane at piece top and the plane coincidence at bolt top place.

By adopting the technical scheme, the method has the advantages that,

1. through setting up spring and L-shaped piece, after bolt and nut threaded connection are firm, with the outside lateral stretching of L-shaped piece for L-shaped piece and nut contact, because the elastic action of spring makes L-shaped piece and nut laminating, avoid the nut to rotate, guarantee bolt and nut firm in connection.

2. Through setting up the stopper, when the spring at compression and tensile in-process, the setting up of stopper is guaranteed the spring and is kept stable at compression and tensile in-process to guarantee the stability of device.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention;

fig. 2 is a side view of a bolt structure according to an embodiment of the present invention;

fig. 3 is a schematic view of a spring structure according to an embodiment of the present invention.

1. A bolt; 2. a nut; 3. a chute; 4. an L-shaped block; 5. pulling the block; 6. a slider; 7. A groove; 8. a limiting block; 9. a spring; 10. and (5) fixing blocks.

Detailed Description

The embodiment of a double nut fastening bolt according to the present invention is further described with reference to fig. 1 to 3.

The utility model provides a two nut fastening bolt, sees figure 1, includes bolt 1, and threaded connection has nut 2 on bolt 1, and the quantity of nut 2 is two, is equipped with on bolt 1 to carry out the extruded article that extrudees nut 2. When 2 threaded connection of nut on bolt 1, utilize the extruded article to extrude nut 2, exert a pressure to nut 2, avoid nut 2 rotatory, follow bolt 1 and go up the separation, guarantee bolt and nut firm in connection.

See fig. 2, the extruded article includes sliding block 6, bolt 1's one end fixedly connected with fixed block 10, and bolt 1 keeps away from the one end of fixed block 10 and has seted up recess 7, and the inside of recess 7 is equipped with elastic component, and elastic component keeps away from the one end sliding block 6 connection of recess 7 tank bottom, and the equal sliding connection in the left and right sides of sliding block 6 has L-shaped piece 4, and when L-shaped piece 4 and sliding block 6 contact, the distance between two L-shaped pieces 4 is less than the width value of recess 7. After

bolt

1 and 2 threaded connection of nut, pull out sliding block 6 from recess 7 on bolt 1, pulling L-shaped piece 4, L-shaped piece 4 and the side laminating of nut 2 this moment, then because elastic component's elastic action, guarantee that L-shaped piece 4 and nut 2 are in inseparable laminating state, avoid nut 2 to rotate.

Referring to fig. 3, the elastic component comprises a spring 9, one end of the spring 9 is fixedly connected with the groove bottom of the groove 7, and the other end of the spring 9 is fixedly connected with the sliding block 6. The spring 9 is natural, the sliding block 6 does not extend out of the bolt 1, when the sliding block 6 is stretched out of the bolt 1, the sliding block 6 is stretched back to the original position due to the elastic action of the spring 9, and the L-shaped block 4 is pressed against the nut 2.

See fig. 3, fixedly connected with stopper 8 on the spring 9, the gliding spout 3 of confession stopper 8 is seted up to 1 inner chamber of bolt, and stopper 8 is located the inside of spout 3. When the spring 9 is stretched and contracted, the limiting block 8 slides along the inner cavity of the sliding groove 3, so that the spring 9 is kept stable in the stretching and contracting process.

See fig. 3, the top of the sliding block 6 is fixedly connected with a pulling block 5, and the plane where the top of the pulling block 5 is located coincides with the plane where the top of the bolt 1 is located. The arrangement of the pulling block 5 is convenient for people to pull the sliding block 6 out of the groove 7.

The working principle is as follows: at first, with nut 2 threaded connection on bolt 1, when needs are fixed bolt 1 and nut 2, pull out sliding block 6 from recess 7, stretch L-shaped piece 4 to both sides for the lateral surface contact of L-shaped piece 4 and nut 2, because spring 9's elastic action, L-shaped piece 4 and nut 2 are in closely laminating state, can effectively avoid nut 2 to take place the rotation, thereby guarantee that threaded connection is firm between bolt 1 and the nut 2, can.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a double nut fastening bolt, includes bolt (1), characterized by: the bolt (1) is in threaded connection with two nuts (2), and an extrusion piece for extruding the nuts (2) is arranged on the bolt (1);

the extruded article includes sliding block (6), one end fixedly connected with fixed block (10) of bolt (1), the one end that fixed block (10) were kept away from in bolt (1) is seted up fluted (7), the inside of recess (7) is equipped with elastic component, elastic component keeps away from one end sliding block (6) of recess (7) tank bottom and connects, and the equal sliding connection in left and right sides of sliding block (6) has L shape piece (4), works as when L shape piece (4) and sliding block (6) contact, two distance between L shape piece (4) is less than the width value of recess (7).

2. A double nut fastening bolt as defined in claim 1 wherein: the elastic component comprises a spring (9), one end of the spring (9) is fixedly connected with the groove bottom of the groove (7), and the other end of the spring (9) is fixedly connected with the sliding block (6).

3. A double nut fastening bolt as defined in claim 2 wherein: fixedly connected with stopper (8) on spring (9), gliding spout (3) of confession stopper (8) are seted up to bolt (1) inner chamber, and stopper (8) are located the inside of spout (3).

4. A double nut fastening bolt as defined in claim 1 wherein: the top fixedly connected with of sliding block (6) draws piece (5), and draws the plane at piece (5) top place and the plane coincidence at bolt (1) top place.