CN202545520U

CN202545520U - Backstop bolt

Info

Publication number: CN202545520U
Application number: CN2012201114928U
Authority: CN
Inventors: 维吉尼亚安通纳斯
Original assignee: ANTUNES EQUIPMENT MANUFACTURING (SUZHOU) Co Ltd
Current assignee: ANTUNES EQUIPMENT MANUFACTURING (SUZHOU) Co Ltd
Priority date: 2012-03-22
Filing date: 2012-03-22
Publication date: 2012-11-21
Anticipated expiration: 2022-03-22

Abstract

The utility model discloses a backstop bolt, which consists of a bolt head and a bolt bar, wherein the end face of the tail end of the bolt bar is provided with a straight slot. According to the backstop bolt disclosed by the utility model, through arranging the straight slot communicated with the periphery of the end face on the end face of the trail end of the bolt bar, double lugs are respectively formed at both ends of the opening of the straight slot, and the double lugs are outwards pulled open to be bent to deform, thus, an anti-loosening function and a backstop function can be realized. The influences of environmental factors, such as vibration, high temperature and low temperature, to the fastening performance of the bolt can be eliminated without matching additional accessories. Installation is also facilitated for narrow usage spaces. The backstop bolt has the advantages of simple structure, convenience in installation, cost saving and high universality.

Description

A kind of stopping bolt

Technical field

The utility model relates to technical field of fastening, particularly a kind of stopping bolt.

Background technique

Nowadays, all be unable to do without fastening piece-bolt in our life and the production.For what people knew, bolt is made up of bolt head and bolt shank (having externally threaded cylindrical body) two-part, needs to be used with nut, and its fastening performance is subject to such environmental effects such as vibration and high low temperature.When using on machinery under the automobile, train, vibration condition of motion and the link under the irrgular movement condition; Or when on temperature rises sharply the heating container of rapid drawdown, using; Bolt rises sharply after the rapid drawdown process standing to vibrate for a long time or stand repeatedly temperature, can get loose phenomenon, need take time usually and energy goes regular check and in time fastening; Otherwise, be prone to cause adverse consequencess such as either large or small security incident, mechanical failure, device damage because of bolt gets loose.

In the technology, get loose several kinds of modes below adopting usually: 1, adapted spring pad and pad now in order to prevent bolt; 2, join the special-purpose circumference radially pad of concave and convex strip that evenly distributes; 3, the bolt of adapted band salient point surface and special washer; 4, construction opening pin stopping; 5, gluing, and adapted nut; 6, tapping lengthening, and adapted tightening nut; 7, artificial destruction screw thread.Adopt above several method, all can reach certain locking, stopping effect, yet, this several kinds of modes or need extra accessory to be used, many one installation procedures increase cost and install more loaded down with trivial details; Versatility is poor, only is suitable for installation generally speaking, is difficult for installing and using for small space and the space that is awkward; The fragile screw thread that cooperates with it, renewal part causes cost waste equally.

The model utility content

For solving the problems of the technologies described above, the utility model provides a kind of stopping bolt, and is easy for installation to reach simple in structure, practices thrift cost, the purpose that versatility is good.

For achieving the above object, the technological scheme of the utility model is following:

A kind of stopping bolt is made up of bolt head and bolt shank, and the tail end end face of said bolt shank is provided with groove.

Preferably, said groove is a groove radially.

Preferably, the width of said groove and the degree of depth all are not less than the radius of bolt shank.

Through technique scheme, a kind of stopping bolt that the utility model provides makes the opening both sides of groove form the ears of thin shape and the certain rigidity of tool through on bolt shank tail end end face, offering the groove that is communicated with the end face periphery; Outwards pull open ears make its bending distortion can realize locking, move back only function; Need not extra accessory and be used environmental factors such as to have solved vibration and high low temperature, not only under general installation conditions, conveniently install, and still can install and use for small space to the bolton Effect on Performance; Reached simple in structure; Easy for installation, practice thrift cost, the purpose that versatility is good.

Description of drawings

In order to be illustrated more clearly in the technological scheme among the utility model embodiment, the accompanying drawing of required use is done to introduce simply in will describing embodiment below.

Fig. 1 is the schematic representation of the disclosed a kind of stopping bolt of the utility model embodiment;

Fig. 2 is the generalized section of the disclosed a kind of stopping bolt of the utility model embodiment.

Embodiment

To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment will be carried out clear, intactly description.

The utility model provides a kind of stopping bolt; As depicted in figs. 1 and 2; One-body molded by bolt head 1 and bolt shank 2, the radius of said bolt shank 2 is 5.75mm, radially offers groove 3 on its tail end end face; The width and the degree of depth of said groove 3 are 8mm, the ears 4 that its opening both sides are thinner thickness.

During installation, behind nut screwing clamping, use screw-driver or other instruments outwards firmly to pull open the ears 4 of groove 3 opening both sides; Make ears 4 bendings distortion can realize locking, move back only function, therefore, the utility model need not extra accessory and is used environmental factors such as can solving vibration and high low temperature to the bolton Effect on Performance; Not only convenient installation under general installation conditions; And still can install and use for small space and the space that is awkward, have simple in structure, easy for installation; Practice thrift cost, the advantage that versatility is good.

To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiments shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims

1. a stopping bolt is made up of bolt head and bolt shank, it is characterized in that, the tail end end face of said bolt shank is provided with groove.

2. a kind of stopping bolt according to claim 1 is characterized in that, said groove is a groove radially.

3. a kind of stopping bolt according to claim 2 is characterized in that the width of said groove and the degree of depth all are not less than the radius of bolt shank.