CN202125504U - Anti-loosening connecting fastener - Google Patents

Anti-loosening connecting fastener Download PDF

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Publication number
CN202125504U
CN202125504U CN2011201765534U CN201120176553U CN202125504U CN 202125504 U CN202125504 U CN 202125504U CN 2011201765534 U CN2011201765534 U CN 2011201765534U CN 201120176553 U CN201120176553 U CN 201120176553U CN 202125504 U CN202125504 U CN 202125504U
Authority
CN
China
Prior art keywords
nut
groove
bolt
loosening
screw rod
Prior art date
Application number
CN2011201765534U
Other languages
Chinese (zh)
Inventor
胡学伦
姚永平
Original Assignee
武胜鑫耀机械制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 武胜鑫耀机械制造有限公司 filed Critical 武胜鑫耀机械制造有限公司
Priority to CN2011201765534U priority Critical patent/CN202125504U/en
Application granted granted Critical
Publication of CN202125504U publication Critical patent/CN202125504U/en

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Abstract

The utility model provides an anti-loosening connecting fastener, comprising a bolt and a nut; the anti-loosening connecting fastener is characterized in that a screw rod of the bolt is provided with a first groove extending axially; one end of the first groove extends out of the end surface of the screw rod; the threaded hole wall of the nut is provided with a second groove extending axially; two ends of the second groove respectively extend out of two end surfaces of the nut; the first groove and the second groove are aligned to form an oblong hole, in which a location-limiting pin is clamped. When the nut is locked in place, the location-limiting pin is clamped in the oblong hole and can prevent the circumferential rotation generated between the nut and the threaded rod of the bolt, so that the loosening and disconnecting of the nut from the bolt is prevented and the connecting and fastening reliability is improved.

Description

Anti-loosening connection fastening piece

Technical field

The utility model relates to a kind of connection fastening piece, relates in particular to a kind of anti-loosening connection fastening piece.

Background technique

Usually adopt between the mechanical part and connect the mutual fixed connection of fastening piece realization; Common connection fastening piece comprises the screw bolt and nut structure at present; This existing connection fastening piece is widely used; But also have following problem: tend to produce vibrations between the connected mechanical part, nut produces circumferentially rotation under the effect of shaking force, at this moment nut loose or dislocation from the bolt easily.

The model utility content

The technical problem that the utility model solves is: a kind of anti-loosening connection fastening piece simple in structure, easy to use is provided.

The technological scheme of the utility model is: a kind of anti-loosening connection fastening piece; Comprise screw bolt and nut; It is characterized in that the screw rod of said bolt is provided with axially extended first groove, an end of this first groove extends the end face of said screw rod; The screw thread hole wall of said nut is provided with axially extended second groove; The both ends of the surface of said nut are extended at the two ends of this second groove respectively, and the common oblong aperture that forms of said first groove and said second notch aligns has snapped in a position limit pin in this oblong aperture.

The screw rod of said bolt is provided with two first grooves, and the screw thread hole wall of said nut is provided with two second grooves, and is corresponding one by one between said two first grooves and said two second grooves.

The beneficial effect of the utility model is: after nut check puts in place; Position limit pin is snapped in the oblong aperture; Position limit pin can prevent to produce circumferential rotation between the threaded stem of nut and bolt, thereby prevents nut loose or dislocation from the bolt, has improved to connect fastening reliability.

Description of drawings

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

Fig. 2 is the structural representation of the bolt in the utility model;

Fig. 3 is that the A of Fig. 2 is to schematic representation;

The structural representation of the nut in Fig. 4 the utility model.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

Referring to Fig. 1~Fig. 4; A kind of anti-loosening connection fastening piece comprises bolt 1 and nut 2, and the screw rod of said bolt 1 is provided with two axially extended first groove 1a; Article two, the end of the first groove 1a extends the end face of said screw rod respectively; The screw thread hole wall of said nut 2 is provided with two axially extended second groove 2a, and the both ends of the surface of said nut 2 are extended at the two ends of two second groove 2a respectively, and is corresponding one by one between said two first groove 1a and said two the second groove 2a.The first groove 1a aligns with the corresponding second groove 2a and forms an oblong aperture jointly, has snapped in a position limit pin 3 in this oblong aperture.

Claims (2)

1. anti-loosening connection fastening piece; Comprise screw bolt and nut, it is characterized in that: the screw rod of said bolt is provided with axially extended first groove, and an end of this first groove extends the end face of said screw rod; The screw thread hole wall of said nut is provided with axially extended second groove; The both ends of the surface of said nut are extended at the two ends of this second groove respectively, and the common oblong aperture that forms of said first groove and said second notch aligns has snapped in a position limit pin in this oblong aperture.
2. according to the described anti-loosening connection fastening piece of claim 1; It is characterized in that: the screw rod of said bolt is provided with two first grooves; The screw thread hole wall of said nut is provided with two second grooves, and is corresponding one by one between said two first grooves and said two second grooves.
CN2011201765534U 2011-05-30 2011-05-30 Anti-loosening connecting fastener CN202125504U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201765534U CN202125504U (en) 2011-05-30 2011-05-30 Anti-loosening connecting fastener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201765534U CN202125504U (en) 2011-05-30 2011-05-30 Anti-loosening connecting fastener

Publications (1)

Publication Number Publication Date
CN202125504U true CN202125504U (en) 2012-01-25

Family

ID=45488572

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201765534U CN202125504U (en) 2011-05-30 2011-05-30 Anti-loosening connecting fastener

Country Status (1)

Country Link
CN (1) CN202125504U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105708219A (en) * 2016-04-20 2016-06-29 金吉成 Multifunctional lifting bed
CN105889267A (en) * 2014-12-19 2016-08-24 遵义勤乐五金建材加工厂 Bolt assembly suitable for motor installation
CN105958360A (en) * 2016-06-02 2016-09-21 国网浙江省电力公司温州市洞头区供电公司 Connection structure of operating crank and screw for switch cabinet
CN105987242A (en) * 2015-02-02 2016-10-05 舍弗勒技术股份两合公司 Oil circuit system and oil pipe connector
CN107630911A (en) * 2017-08-09 2018-01-26 宁波市镇海甬鼎紧固件制造有限公司 A kind of check bolt
CN110715123A (en) * 2019-10-22 2020-01-21 湖北瑞合轨道交通发展有限公司 Double-clamping sleeve sealing structure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105889267A (en) * 2014-12-19 2016-08-24 遵义勤乐五金建材加工厂 Bolt assembly suitable for motor installation
CN105987242B (en) * 2015-02-02 2019-08-30 舍弗勒技术股份两合公司 Oil piping system and oil pipe connector
CN105987242A (en) * 2015-02-02 2016-10-05 舍弗勒技术股份两合公司 Oil circuit system and oil pipe connector
CN105708219A (en) * 2016-04-20 2016-06-29 金吉成 Multifunctional lifting bed
CN105708219B (en) * 2016-04-20 2019-09-06 金吉成 Multifunctional lift bed
CN105958360A (en) * 2016-06-02 2016-09-21 国网浙江省电力公司温州市洞头区供电公司 Connection structure of operating crank and screw for switch cabinet
CN105958360B (en) * 2016-06-02 2018-04-27 国网浙江省电力公司温州市洞头区供电公司 A kind of connection structure of switchgear rocking handle and screw rod
CN107630911A (en) * 2017-08-09 2018-01-26 宁波市镇海甬鼎紧固件制造有限公司 A kind of check bolt
CN110715123A (en) * 2019-10-22 2020-01-21 湖北瑞合轨道交通发展有限公司 Double-clamping sleeve sealing structure

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120125

Termination date: 20140530

C17 Cessation of patent right