CN103161815A - Anti-looseness screw - Google Patents

Anti-looseness screw Download PDF

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Publication number
CN103161815A
CN103161815A CN 201310099703 CN201310099703A CN103161815A CN 103161815 A CN103161815 A CN 103161815A CN 201310099703 CN201310099703 CN 201310099703 CN 201310099703 A CN201310099703 A CN 201310099703A CN 103161815 A CN103161815 A CN 103161815A
Authority
CN
China
Prior art keywords
circlip
bolt
screw
screw thread
looseness
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN 201310099703
Other languages
Chinese (zh)
Inventor
朱文和
Original Assignee
朱文和
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 朱文和 filed Critical 朱文和
Priority to CN 201310099703 priority Critical patent/CN103161815A/en
Publication of CN103161815A publication Critical patent/CN103161815A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an anti-looseness screw. The anti-looseness screw comprises a bolt (1) and a nut (4) which are in flexible connection by arranging threads (3) at the tail end of the bolt (1), an elastic stop ring (5) is flexibly arranged on the threads (3), the inner diameter of the elastic stop ring (5) is smaller than the inner diameter of the threads (3), and a protrusion (6) which is matched with a neck (2) which is formed in the tail end of the bolt (1) is arranged at the inner side of the elastic stop ring (5). The anti-looseness screw has the advantages of being capable of playing a role in the effect of preventing the screw from loosening, convenient to operate, easy to machine, and economical and practical.

Description

A kind of loose-proof screw
Technical field
The present invention relates to be widely used in a kind of connection set in the industries such as machinery, petrochemical industry, communication, chemical industry, building industry, electric power, weaving, particularly a kind of loose-proof screw.
Background technique
Screw is widely used in each field, and the working principle of screw is to rotate screw thread in the bolt by nut, reaches the effect of union piece.But there is following defective in existing screw, and due to various factors, nut often can rotate along the screw thread automatic slowly, so that comes off, and screw does not have the effect that is connected and fixed.
Summary of the invention
For the nut in existing screw easily and the defective of bolt falling, the invention provides a kind of loose-proof screw.
To achieve these goals, institute of the present invention Adopts measure is:
A kind of loose-proof screw, comprise that the end by bolt is provided with the screw bolt and nut that screw thread is movably connected, be connected with circlip on screw thread, the internal diameter of circlip is less than the internal diameter of screw thread, and the inboard of circlip is provided with the projection that the draw-in groove with the end setting of bolt is complementary;
The direction of described projection is the inter normal direction of circlip;
The arranged outside of described circlip has the attachment hole that opens back-up ring;
The material of described circlip is steel.
Beneficial effect of the present invention: effectively played the effect of anti-nut loosening, easy to operate, processing is simple, and is economical and practical.
Description of drawings
Fig. 1, the mounted overall structure schematic diagram of the present invention;
The structural representation of bolt in Fig. 2, the present invention;
The structural representation of Fig. 3, Elastic back-up ring of the present invention.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, a kind of loose-proof screw, comprise that the end by bolt 1 is provided with bolt 1 and the nut 4 that screw thread 3 is movably connected, be connected with circlip 5 on screw thread 3, the internal diameter of circlip 5 is less than the internal diameter of screw thread 3, and the inboard of circlip 5 is provided with the projection 6 that the draw-in groove 2 with the end setting of bolt 1 is complementary; The inter normal direction that described protruding 6 direction is circlip 5; The arranged outside of described circlip 5 has the attachment hole 7 that opens back-up ring; The material of described circlip 5 is steel.
Working principle of the present invention: after nut 4 is screwed to the position that needs, open circlip 5 and put bolt 1 into, the draw-in groove 2 that the position that reaches nut 4 allows the projection 6 on circlip 5 aim on bolts 1, then decontrol circlip 5, circlip 5 recovers 3 li, the screw thread that former states are stuck in bolt 1, due to the inner diameter of circlip 5 less than the screw thread 3 on bolt 1, it can not be taken on bolt 1 into taking out, make its inner diameter greater than the screw thread 3 on bolt 1 after opening circlip 5, thereby can put bolt 1 into.The circlip 5 of this moment will be figured out, can only be along screw thread 3 rotation out, but the projection 6 on circlip 5 is stuck on the draw-in groove 2 of bolt 1, makes the circlip 5 can not left rotation and right rotation, and stuck on bolt 1.Keeping off because circlip 5 is stuck on bolt 1, nut 4 just can not be back-outed from bolt 1, thereby reaches anti-loosening effect.If need back out nut 4, enter attachment hole 7 with the sharp muzzle of wapperijaw needle-nose pliers, open needle-nose pliers and just can open circlip 5, circlip 5 is taken out from bolt 1, then just nut 4 can have been back-outed.
Beneficial effect of the present invention: effectively played the effect of anti-nut loosening, easy to operate, processing is simple, and is economical and practical.
In related domain, those skilled in the art's simple change and replacement are all within protection scope of the present invention.

Claims (4)

1. loose-proof screw, comprise that the end by bolt (1) is provided with bolt (1) and the nut (4) that screw thread (3) is movably connected, it is characterized in that, be connected with circlip (5) on screw thread (3), the internal diameter of circlip (5) is less than the internal diameter of screw thread (3), and the inboard of circlip (5) is provided with the projection (6) that draw-in groove (2) that the end with bolt (1) arranges is complementary.
2. a kind of loose-proof screw according to claim 1, is characterized in that, the direction of described projection (6) is the inter normal direction of circlip (5).
3. a kind of loose-proof screw according to claim 1 and 2, is characterized in that, the arranged outside of described circlip (5) has the attachment hole (7) that opens back-up ring.
4. a kind of loose-proof screw according to claim 3, is characterized in that, the material of described circlip (5) is steel.
CN 201310099703 2013-03-26 2013-03-26 Anti-looseness screw Pending CN103161815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201310099703 CN103161815A (en) 2013-03-26 2013-03-26 Anti-looseness screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201310099703 CN103161815A (en) 2013-03-26 2013-03-26 Anti-looseness screw

Publications (1)

Publication Number Publication Date
CN103161815A true CN103161815A (en) 2013-06-19

Family

ID=48585221

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201310099703 Pending CN103161815A (en) 2013-03-26 2013-03-26 Anti-looseness screw

Country Status (1)

Country Link
CN (1) CN103161815A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106662139A (en) * 2014-07-23 2017-05-10 黄在必 Anti-loosening bolt
CN113669350A (en) * 2021-07-29 2021-11-19 河北光兴半导体技术有限公司 Anti-loosening bolt structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106662139A (en) * 2014-07-23 2017-05-10 黄在必 Anti-loosening bolt
CN106662139B (en) * 2014-07-23 2019-08-09 黄在必 Anti-loosening bolt
CN113669350A (en) * 2021-07-29 2021-11-19 河北光兴半导体技术有限公司 Anti-loosening bolt structure

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130619