CN201636177U

CN201636177U - Combined locknut

Info

Publication number: CN201636177U
Application number: CN2010201278261U
Authority: CN
Inventors: 庄众心; 许平华
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-06
Filing date: 2010-03-06
Publication date: 2010-11-17
Anticipated expiration: 2020-03-06

Abstract

The utility model discloses a combined locknut which includes a locknut body provided with an inner thread and a cushion capable of leading one end of the locknut body to retract inwardly during the process of mutually compacting with the locknut body. One end of the locknut body is provided with a conical surface; an open slot communicated with the inner hole of the locknut body is arranged on the conical surface; and a coaxial through hole which can be matched with the conical surface is arranged on the cushion. The conical surface is arranged on the outer surface of the locknut body. One end of the locknut body is provided with an annular slot for inserting one end of the cushion; the surface of the inner wall of the annular slot is a conical surface; and the coaxial through hole is a conical hole or one section of the coaxial through hole is a conical hole. The combined locknut of the structure has good locking effect.

Description

The combined type lock nut

Technical field

The utility model relates to a kind of threaded connector, is a kind of nut specifically.

Background technique

The screw bolt and nut that is used to be threaded is because of its connection that is widely used in component easy to use simple in structure.After being most widely used of the screw bolt and nut of regular screw threads, screw bolt and nut were locked mutually, under the effect of factors such as vibration, nut was easily loosening, loses efficacy thereby cause to connect.In order to prevent nut loosening, people have taked a lot of measures, for example add elasticity retaining pad, dress retaining pin and measure such as gluing on screw thread, and above-mentioned measure is not that operation inconvenience is exactly that anti-loosing effect is bad.

The model utility content

The technical problems to be solved in the utility model is at above-mentioned defective, provides a kind of anti-loosing effect good nut.

For solving the problems of the technologies described above, the utility model provides a kind of combined type lock nut of following structure, comprise the nut body that is provided with internal thread, its structural feature be also to comprise one with the mutual compaction process of nut body in nut body one end is inwardly shunk pad.

Described nut body one end has a conical surface, and conical surface is provided with the opening slot that is communicated with the nut body endoporus; Pad is provided with the axial hole that can match with conical surface.

Described conical surface is located on the outer surface of nut body.

One end face of described nut body is provided with the annular groove that inserts for pad one end, and the surface of the internal groove side wall of annular groove is a conical surface.

Described axial hole is that conical bore or axial hole one section is conical bore.

During use, pad is enclosed within earlier on the bolt, nut body is spun on the bolt gets final product again until nut body is screwed.Since the combined type lock nut have one with the mutual compaction process of nut body in can make the pad of the inside elastic shrinkage of nut body one end, after nut body one end shrinks, the internal thread of nut body lower end and the extruding force between the outside thread on the bolt obviously strengthen, frictional force also obviously strengthens between internal and external screw thread, thereby it is loosening that connecting thread is difficult for.

In sum, the utlity model has the good advantage of anti-loosing effect.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:

Fig. 1 is a kind of structural representation of the present utility model;

Fig. 2 is the worm's eye view of nut body among Fig. 1;

Fig. 3 is an another kind of structural representation of the present utility model;

Fig. 4 is the worm's eye view of nut body among Fig. 3.

Embodiment

As depicted in figs. 1 and 2, the combined type lock nut comprises nut body 1 that is provided with internal thread 7 and the pad 2 that cooperates with nut body 1 one ends, pad 2 with nut body 1 mutual compaction process in can make nut body 1 inside elastic shrinkage.As the concrete measure of realizing nut body 1 inside elastic shrinkage be: nut body 1 one ends have a conical surface 3, and conical surface 3 is provided with the opening slot 4 that is communicated with nut body 1 endoporus, and pad 2 is provided with the axial hole 5 that can match with conical surface 3; Nut body 1 is in the mutual compaction process of hole wall of conical surface 3 and axial hole 5 with pad 2, and that part of nut body 1 that is provided with conical surface 3 resiliently deformable can take place inwardly shrinks; The setting of opening slot 4 becomes a reality nut body 1 inside elastic shrinkage.The number of opening slot 4 will be taken into account the intensity of nut body 1 and the complexity of resiliently deformable takes place, and generally is advisable with 4-6.One end face of the nut body 1 shown in the figure is provided with annular groove 6, the conical surface 3 of the surface of annular groove 6 internal groove side walls for matching with the axial hole 5 of pad 2, one section conical bore of axial hole 5 for matching with conical surface 3, the thick the other end of pad 2 one ends is thin, pad 2 thin ends can insert in the annular groove 6, and the degree of depth of annular groove 6 is greater than the length of pad 2 thin ends.

As another kind of implementation of the present utility model be: as shown in Figure 3 and Figure 4, conical surface 3 is located on the outer surface of nut body 1, conical surface 3 is provided with the opening slot 4 that is communicated with nut body 1 endoporus, the two ends diameter unanimity of pad 2, the conical bore of axial hole 5 for matching with conical surface 3 of pad 2 can certainly adopt one section of axial hole 5 to be the design of conical bore.

Elastic shrinkage can take place during pressurized in the combined type lock nut of said structure, and energy elastic return after pressure is removed had both solved easily loosening problem, can reuse again.

Claims

1. a combined type lock nut comprises the nut body (1) that is provided with internal thread, it is characterized in that also comprising that one can make the pad (2) of nut body (1) the one inside elastic shrinkage of end in the compaction process mutually with nut body (1).

2. combined type lock nut according to claim 1 is characterized in that described nut body (1) one end has a conical surface (3), and conical surface (3) is provided with the opening slot (4) that is communicated with nut body (1) endoporus; Pad (2) is provided with the axial hole (5) that can match with conical surface (3).

3. combined type lock nut according to claim 2 is characterized in that conical surface (3) is located on the outer surface of nut body (1).

4. combined type lock nut according to claim 2 is characterized in that an end face of nut body (1) is provided with the annular groove that inserts for pad (2) one ends, and the surface of the internal groove side wall of annular groove is a conical surface.

5. according to claim 2,3 or 4 described combined type lock nuts, it is characterized in that axial hole (5) is conical bore for conical bore or axial hole (5) one section.