CN215110007U

CN215110007U - Threaded connection device with anti-loosening function

Info

Publication number: CN215110007U
Application number: CN202121555143.0U
Authority: CN
Inventors: 刘跃群
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-12-10
Anticipated expiration: 2031-07-08

Abstract

The utility model discloses a threaded connection device with anti-loosening function, which relates to the technical field of fastening devices; the anti-loosening nut comprises an anti-loosening nut body and a plurality of conical parts; the middle part of the locknut body is provided with an internal thread; at least one telescopic groove is radially arranged on the inner side of the locknut body along the thread; the plurality of conical parts are sleeved on the outer side of the locknut body and are in interference fit with the locknut body; the utility model discloses can effectively prevent to strike, vibration, become that the load effect is not hard up down the nut, the security reinforcing.

Description

Threaded connection device with anti-loosening function

Technical Field

The utility model relates to a fastener technical field, concretely relates to threaded connection device with locking function.

Background

In the prior art, the fastening of the connected object is usually realized by bolts, gaskets and nuts, and the connected object does not automatically loosen under the static load condition. However, there are inevitably shock, vibration, and variable load effects due to the working conditions of the coupling. Under the working conditions, the friction force between the thread pairs can disappear or reduce instantly; meanwhile, in the occasions of high temperature or large temperature change, the material can generate creep and stress relaxation, and the friction force is also reduced. Under the action of a plurality of times, the connection can be gradually loosened, and safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, reasonable in design, convenient to use's threaded connection device with locking function to prior art's defect and not enough.

In order to achieve the above object, the utility model adopts the following technical scheme: the anti-loosening nut comprises an anti-loosening nut body and a plurality of conical parts; the middle part of the locknut body is provided with an internal thread; at least one telescopic groove is radially arranged on the inner side of the locknut body along the thread; the plurality of conical parts are sleeved on the outer side of the locknut body and are in interference fit with the locknut body;

furthermore, the whole conical part is inclined at an angle of 2-15 degrees;

furthermore, the conical parts are connected in series on the locknut body along the same taper direction;

furthermore, the conical parts are connected in series on the locknut body along different taper directions.

After the structure is adopted, the utility model discloses beneficial effect does: a threaded connection device with locking function, can effectively prevent to strike, vibration, become that the load effect is not hard up down the nut, the security reinforcing, and have simple structure, set up reasonable, cost of manufacture low grade advantage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic structural view of embodiment 1;

FIG. 3 is a schematic structural view of example 2;

FIG. 4 is a schematic structural view of the locknut body;

FIG. 5 is a schematic view of a tapered part;

fig. 6 is a schematic view of the present invention in use.

Description of reference numerals:

1. a locknut body; 2. a conical part; 3. a bolt; 4. a first fastened piece; 5. a second fastened piece; 6. a common nut; 1-1, a telescopic groove; 1-2 and internal threads.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Example 1: referring to fig. 1-2, fig. 4-5, it comprises a locknut body 1 and four conical parts 2; the middle part of the locknut body 1 is provided with an internal thread 1-2; two telescopic grooves 1-1 are radially arranged on the inner side of the locknut body 1 along the thread; the conical part 2 is integrally inclined, and the inclination angle alpha is 6 degrees; the four conical parts 2 are connected in series on the outer side of the locknut body 1 along the same taper direction and are in interference fit with the locknut body 1;

example 2: referring to fig. 1, fig. 3-5, it comprises a locknut body 1 and four conical parts 2; the middle part of the locknut body 1 is provided with an internal thread 1-2; two telescopic grooves 1-1 are radially arranged on the inner side of the locknut body 1 along the thread; the conical part 2 is integrally inclined, and the inclination angle alpha is 10 degrees; the four conical parts 2 are connected in series on the outer side of the locknut body 1 along different taper directions and are in interference fit with the locknut body 1;

during the use of the utility model, pass bolt 3 earlier by fastener one 4 and by fastener two 5, lock with ordinary nut 6, will again threaded connection device and 3 threaded connection of bolt, lock in the outside of ordinary nut 6. The utility model discloses in, be equipped with flexible groove 1-1 on the

locknut body

1, 2 interference fit of toper part are in the outside of locknut body 1, and the internal diameter of screw thread of locknut body 1 diminishes, makes to be connected between locknut body 1 and the bolt 3 and more fasten, is equipped with the tapering on the toper part 2 simultaneously, increases its and locknut body 1, the frictional force between the ordinary nut 6, can effectively prevent to strike, vibration, become that the load effect is down ordinary nut not hard up, the security reinforcing.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A threaded connection device with a locking function is characterized by comprising a locknut body and a plurality of conical parts; the middle part of the locknut body is provided with an internal thread; at least one telescopic groove is radially arranged on the inner side of the locknut body along the thread; the plurality of conical parts are sleeved on the outer side of the locknut body and are in interference fit with the locknut body.

2. A threaded connection with anti-loosening function as defined in claim 1, wherein said tapered part is inclined as a whole at an angle of 2-15 °.

3. A threaded connection device with anti-loosening function as claimed in claim 2, wherein said tapered parts are connected in series on the locknut body in the same taper direction.

4. A threaded connection device with anti-loosening function as defined in claim 2, wherein said tapered parts are connected in series to the locknut body in different taper directions.