CN2152111Y

CN2152111Y - Anti-lovsening bolt connecting part

Info

Publication number: CN2152111Y
Application number: CN 93207136
Authority: CN
Inventors: 周勇
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-03-26
Filing date: 1993-03-26
Publication date: 1994-01-05
Anticipated expiration: 2003-03-26

Abstract

The utility model relates to an anti-loosening bolt connecting part, wherein, a cap nut 1 is provided with a counterbore 2 on the inner end face; the end face of a shim 3 is provided with a nose 4 that has the relevant quantity and form as the counterbore 2; the threaded rod of a bolt 5 is provided with a location notch 6; the inner circle of the shim 3 is provided with a location bump 7 corresponding to the location notch 6. This assembly just needs to be deeply processed based on the existing screw fastener, while the existing equipment do not have to be replaced, and the new equipment are with less investment. It is of simple structure to be used as a common bolt, and it can safely and reliably prevent the cap nut from loosening or shedding so as to avoid machinery accident occurence.

Description

Anti-lovsening bolt connecting part

The utility model relates to a kind of threaded fastener, especially a kind of chek bolt assembly parts.

The bolt combination part has a purposes widely industrial.But, as car, ship, aircraft, lathe etc. mechanically,, stay accident potential because mechanical vibration cause bolt fastener loosening, even come off in the occasion of many mechanical motion.In recent years, disclose some on the Chinese patent communique and had the threaded fastener of locking effect, but had certain defective in varying degrees, the complex structure that has is installed inconvenience; The anti-loosing effect that has is undesirable.

The purpose of this utility model is to overcome the existing existing defective of threaded fastener, provides a kind of simple in structure, and use the same with the plain bolt assembly parts has the chek bolt assembly parts of good anti-loosing effect.

Technical solution of the present utility model is: at the counterbore that evenly is provided with on the interior edge face of nut more than 2 or 2, the end face of pad is provided with the corresponding plush copper of quantity and shape and counterbore, the screw rod of bolt is provided with the locating slot more than 1 or 1, and the interior circle of pad is provided with the corresponding locating bump of locating slot.

The utility model only needs to carry out deep processing on the basis of existing fastening piece, and existing equipment is not eliminated, the newly added equipment little investment.This chek bolt assembling unit structure is simple, can equally with the plain bolt assembly parts install and use, and can prevent safely and reliably that bolt looseness from coming off, and stops the generation of mechanical accident.

The technical solution of the utility model is applicable to various bolts and double-screw bolt.

Fig. 1 is the structural representation of the utility model nut;

Fig. 2 is the right elevation of Fig. 1;

Fig. 3 is the structural representation of the utility model pad 3;

Fig. 4 is the right elevation of Fig. 3;

Fig. 5 is the structural representation of the utility model bolt 5;

Fig. 6 is the right elevation of Fig. 5;

Fig. 7 is used for the structural representation of double-screw bolt for the utility model;

Fig. 8 is the right elevation of Fig. 7.

Below in conjunction with drawings and Examples the utility model is described in more detail.

Embodiment:

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, evenly be processed with 8 semicircle counterbores 2 on the interior edge face of nut 1, be processed with 8 semicircle plush coppers 4 on the end face of pad 3, be processed with a rectangle locating slot 6 on the screw rod of bolt 5, the interior circle of pad 3 is provided with and locating slot 6 corresponding rectangle locating bumps 7.

Installation method of the present utility model is: the screw rod of bolt 5 is put in the through hole of connected piece, prop up the lower end surface of connected piece with bolt head, put spring washer then successively on screw rod.Pad 3 and nut 1, the projection 7 of pad 3 is stuck in the locating slot 6, and the plush copper 4 on the pad 3 is identical with the counterbore 2 on the nut 1, and fastening nut gets final product.

Claims

1, a kind of chek bolt assembly parts, comprise nut (1), pad (3) and bolt (5), it is characterized in that: evenly be provided with the counterbore (2) more than 2 or 2 on the interior edge face of nut (1), the end face of pad (3) is provided with quantity and shape and the corresponding plush copper of counterbore (2) (4), the screw rod of bolt (5) is provided with the locating slot (6) more than 1 or 1, and the interior circle of pad (3) is provided with and the corresponding locating bump of locating slot (6) (7).