CN204921618U - Locking fastening combination screw - Google Patents

Locking fastening combination screw Download PDF

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Publication number
CN204921618U
CN204921618U CN201520562499.5U CN201520562499U CN204921618U CN 204921618 U CN204921618 U CN 204921618U CN 201520562499 U CN201520562499 U CN 201520562499U CN 204921618 U CN204921618 U CN 204921618U
Authority
CN
China
Prior art keywords
screw
order screw
order
single order
threaded hole
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.)
Expired - Fee Related
Application number
CN201520562499.5U
Other languages
Chinese (zh)
Inventor
张青锋
李鹏涛
荆艳红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Diesel Engine Industry Co Ltd
Original Assignee
Henan Diesel Engine Industry Co Ltd
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 Henan Diesel Engine Industry Co Ltd filed Critical Henan Diesel Engine Industry Co Ltd
Priority to CN201520562499.5U priority Critical patent/CN204921618U/en
Application granted granted Critical
Publication of CN204921618U publication Critical patent/CN204921618U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a fastener, concretely relates to locking fastening combination screw. An internal thread hole complex first -order screw (1) that's a locking fastening combination screw have for and the connecting piece is proposed, first -order screw (1) has the structure of internal thread hole (14) for the center, and internal thread hole (14) through -hole for running through whole first -order screw, the top surface of first -order screw nut (12) is the plane, set up second order screw (3), the screw rod diameter of second order screw (3) is greater than the internal thread hole diameter of first -order screw (1), be provided with gasket (2) between the nut of second order screw (3) and the first -order screw nut (12), and gasket (2) cover is put in second order screw (3) on the screw rod. The utility model discloses the maximum screw of having avoided is not hard up, and this novel combination screw also can be dismantled simultaneously, has solved because the gluey and not quick detachable problem of fastening is scribbled at tightening process to the screw.

Description

A kind of locking fastening screw assemblies
Technical field
The utility model relates to a kind of fastening piece, is specifically related to a kind of locking fastening combination screw assemblies.
Background technique
Screw uses in mechanical field in a large number as fastening piece, but screw is in the process of fixed connecting piece, due to can through rocking and vibrating repeatedly, easy generation loosens, and then may come off, affecting fastening effect, so need design a kind ofly can at utmost reduce loosening screw, is the major issue needing to solve.
Model utility content
For the deficiencies in the prior art part, the purpose of this utility model is to propose a kind of locking fastening screw assemblies.
The utility model adopts following technological scheme for completing above-mentioned purpose:
A kind of locking fastening screw assemblies, described screw assemblies has the single order screw in order to coordinate with the interior threaded hole of link; There is centered by described single order screw the structure of interior threaded hole, and described interior threaded hole is the through hole running through whole single order screw; The end face of single order screw nut is plane; The second order screw be provided with tensioner single order screw screw rod, the interior threaded hole of single order screw and link being fastened as a whole; The screw diameter of described second order screw is greater than the interior threaded hole diameter of single order screw, be provided with pad, and described pad is nested with on the described screw rod of second order screw between the nut of described second order screw and the nut of single order screw.
The length of described second order screw is less than or equal to the length of single order screw.
The locking fastening screw assemblies of the one that the utility model proposes, by single order screw, pad becomes fastener together with second order screw association, internal thread through hole is increased at the center of single order screw, by interior threaded hole and the externally threaded micro-interference fit of second order screw of single order screw, be installed in the process that single order screw interior threaded hole tightens at second order screw, the outer screw diameter of single order screw can be made to expand, and then make the tapped hole of single order screw and link reach farthest fastening, thus farthest can avoid screw loosening, this novel compositions screw also can be dismantled simultaneously, solve because screw is coated with fastening glue and not easily detachable problem in rundown process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of single order screw in the utility model.
In figure: 1, single order screw, 2, pad, 3, second order screw, 11, single order screw screw rod, 12, single order screw nut, 14, interior threaded hole.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, and composition graphs 2, a kind of locking fastening screw assemblies, described screw assemblies has the single order screw 1 in order to coordinate with the interior threaded hole of link, there is centered by described single order screw 1 structure of interior threaded hole 14, and described interior threaded hole 14 is for running through the through hole of whole single order screw, the length of interior threaded hole 14 is equal to single order screw 1 total length, and the tightness of diameter required for different occasion in internal thread 14 hole is different and be designed to different size, and the end face of single order screw nut 12 is plane, the second order screw 3 being provided with tensioner single order screw screw rod 11, single order screw 1 is fastened as a whole with the interior threaded hole of link, the screw rod of described second order screw 3 and the micro-interference fit of interior threaded hole of single order screw 1, be provided with pad 2 between the nut of described second order screw 3 and single order screw nut 12, and described pad 2 is nested with on the described screw rod of second order screw 3, the length of described second order screw 3 is less than or equal to the length of single order screw 1, tighten in the interior threaded hole by spanner single order screw 1 being installed to link, the screw rod of second order screw 3 overlaps in interior threaded hole 14 that Upper gasket 2 is installed to single order screw 1 and tighten, because the interior threaded hole 14 of single order screw 1 and the outside thread of second order screw 3 are micro-interference fit, in the process that second order screw 3 is tightened, screw rod 11 external diameter of single order screw 1 is expanded, and then single order screw 1 can be made more to closely cooperate with the tapped hole of link, and not easily loosen, a kind of novel compositions screw also solves the not easily detachable problem due to screw painting fastening glue simultaneously.

Claims (2)

1. a locking fastening screw assemblies, described screw assemblies has the single order screw (1) in order to coordinate with the interior threaded hole of link; It is characterized in that: the structure centered by described single order screw (1) with interior threaded hole (14), and described interior threaded hole (14) is for running through the through hole of whole single order screw; The end face of single order screw nut (12) is plane; The second order screw (3) being provided with tensioner single order screw screw rod (11), single order screw (1) is fastened as a whole with the interior threaded hole of link; The screw diameter of described second order screw (3) is greater than the interior threaded hole diameter of single order screw (1), be provided with pad (2) between the nut of described second order screw (3) and single order screw nut (12), and described pad (2) is nested with on the described screw rod of second order screw (3).
2. the locking fastening screw assemblies of one according to claim 1, is characterized in that: the length of described second order screw is less than or equal to the length of single order screw.
CN201520562499.5U 2015-07-30 2015-07-30 Locking fastening combination screw Expired - Fee Related CN204921618U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520562499.5U CN204921618U (en) 2015-07-30 2015-07-30 Locking fastening combination screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520562499.5U CN204921618U (en) 2015-07-30 2015-07-30 Locking fastening combination screw

Publications (1)

Publication Number Publication Date
CN204921618U true CN204921618U (en) 2015-12-30

Family

ID=54970749

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520562499.5U Expired - Fee Related CN204921618U (en) 2015-07-30 2015-07-30 Locking fastening combination screw

Country Status (1)

Country Link
CN (1) CN204921618U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106546120A (en) * 2017-01-23 2017-03-29 上海金由氟材料股份有限公司 A kind of interior cladding fastening seal structure of fluoroplastics pipe heat exchanger
CN106546121A (en) * 2017-01-23 2017-03-29 上海金由氟材料股份有限公司 A kind of fluoroplastics coat sealing structure and encapsulating method entirely
CN110219871A (en) * 2019-06-17 2019-09-10 湖北登峰高强螺栓有限公司 A kind of double rod bolt

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106546120A (en) * 2017-01-23 2017-03-29 上海金由氟材料股份有限公司 A kind of interior cladding fastening seal structure of fluoroplastics pipe heat exchanger
CN106546121A (en) * 2017-01-23 2017-03-29 上海金由氟材料股份有限公司 A kind of fluoroplastics coat sealing structure and encapsulating method entirely
CN106546120B (en) * 2017-01-23 2019-01-01 上海金由氟材料股份有限公司 A kind of interior cladding fastening seal structure of fluoroplastics pipe heat exchanger
CN106546121B (en) * 2017-01-23 2019-01-01 上海金由氟材料股份有限公司 A kind of fluoroplastics coat sealing structure and encapsulating method entirely
CN110219871A (en) * 2019-06-17 2019-09-10 湖北登峰高强螺栓有限公司 A kind of double rod bolt

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Legal Events

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

Granted publication date: 20151230

Termination date: 20170730