CN201180725Y

CN201180725Y - High-lock nut

Info

Publication number: CN201180725Y
Application number: CNU200820300590XU
Authority: CN
Inventors: 张晓斌; 马玲
Original assignee: Guizhou Aerospace Precision Products Co Ltd
Current assignee: Guizhou Aerospace Precision Products Co Ltd
Priority date: 2008-04-21
Filing date: 2008-04-21
Publication date: 2009-01-14
Anticipated expiration: 2018-04-21

Abstract

The utility model discloses a high-locking nut including a nut body (1) with a threaded hole. The nut body (1) is composed of a self-locking part (4) and a twisting-off part (2), and a neck breaking groove (3) is formed between the connecting part of the twisting-off part (2) and the self-locking part (4). The utility model adopts the high-locking nut composed of the self-locking part and the twisting-off part to realize the fastening with a high-locking bolt, the preset self-locking connection can be completed only by the operation of twisting off the twisting-off part of the high-locking nut, the problem caused by human factors is eliminated, and the operation is simplified. In addition, the high-locking nut further has the characteristics of simple structure, easy production, good use effect, etc.

Description

Closely locking nut

Technical field

The utility model relates to a kind of fastening piece, and especially a kind of Closely locking nut of space flight special use belongs to nut technical field in the fastening piece.

Background technique

The Closely locking nut special fastener is that special project is used to connect aircraft sandwich, aircraft cabin body class, and have the connection fastening piece of self-locking performance.This fastening piece uses to be had alternating force or is easily producing the occasion of oscillating action, preventing nut from getting loose and having an accident is a very crucial problem, usually owing to the usage requirement difference of this fastening piece, reasons such as manual operation can't be used standard operation to finish predetermined self-locking and connect.

The model utility content:

The purpose of this utility model is: a kind of Closely locking nut is provided, and it can adopt standard operation, finishes predetermined self-locking and connects, to overcome the deficiencies in the prior art.

The utility model is achieved in that Closely locking nut, and it comprises nut body with threaded hole (1), and nut body (1) is formed by twist into two parts part (2) from latching segment (4), from latching segment (4) and twist into two parts between the connection part of partly (2) and be provided with cut-off neck slot (3).

Best is from the tapped hole of latching segment (4) is oval structure.

Screw thread from the tapped hole of latching segment (4) is U.S. standard screw thread or MJ screw thread.

Owing to adopted technique scheme, compared with prior art, the utility model adopt from latching segment with twist into two parts Closely locking nut that part constitutes and realize fastening with high locked bolts, only need operation to finish to twist into two parts twisting into two parts part and just finishing predetermined self-locking connection of Closely locking nut, get rid of the problem that personal factor causes, and also simplified operation.Characteristics such as and the utility model also has simple in structure, produces easily, and using effect is good.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is a use schematic representation of the present utility model.

Embodiment

Embodiment of the present utility model: the structure of Closely locking nut as shown in Figure 1, it comprises nut body with threaded hole 1, nut body 1 adopts the 2LY12-CS aluminum alloy to make, during making, nut body 1 is made into by from latching segment 4 with twist into two parts part 2 and form, and from latching segment 4 and twist into two parts between the connection part of part 2 and produce a cut-off neck slot 3, simultaneously will be after the tapped hole of latching segment 4 be made threaded tapped hole earlier by conventional methods, mode by extruding is made as oval structure with it again, can be made into U.S. standard screw thread or MJ screw thread from the worm structure of the tapped hole of latching segment 4.

In the equipment process, high locked bolts 5 enters the oval tapped hole from latching segment 4 on the nut body 1, has overcome the deformation force of oval tapped hole, and the deformation force of oval tapped hole will produce a self-lock force to high locked bolts 5, makes its structural stability, reliable; The Closely locking nut that is screwed into, take off from the position of cut-off neck slot 3 is stubborn until twisting into two parts part 2, along with the part 2 of twisting into two parts of Closely locking nut is twisted into two parts, connected cabin body plate will closely be connected, and produces pretightening force, and this pretightening force will react on from latching segment 4, from latching segment 4 this moment under the condition of pretightening force and self-locking power, reach a stable performance, reliable state, be satisfied with the occasion that alternating force is arranged or easily produce oscillating action, prevent that nut from getting loose and having an accident.The processing of cut-off neck slot 3 produces the pretightening force size that can control generation, as long as the power of twisting into two parts of control cut-off neck slot just can be applicable to the different occasions that require, does not need manual operation to go to control, largely reduced the risk problem that personal factor is brought.

Claims

1. Closely locking nut, it comprises nut body with threaded hole (1), it is characterized in that: nut body (1) is formed by twist into two parts part (2) from latching segment (4), from latching segment (4) and twist into two parts between the connection part of partly (2) and be provided with cut-off neck slot (3).

2. Closely locking nut according to claim 1 is characterized in that: the tapped hole from latching segment (4) is an oval structure.

3. Closely locking nut according to claim 1 and 2 is characterized in that: the screw thread from the tapped hole of latching segment (4) is U.S. standard screw thread or MJ screw thread.