CN104806618A - Tail self-sealing lock bolt - Google Patents

Tail self-sealing lock bolt Download PDF

Info

Publication number
CN104806618A
CN104806618A CN201510223575.4A CN201510223575A CN104806618A CN 104806618 A CN104806618 A CN 104806618A CN 201510223575 A CN201510223575 A CN 201510223575A CN 104806618 A CN104806618 A CN 104806618A
Authority
CN
China
Prior art keywords
bolt
head
tail
tail cover
diameter
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
CN201510223575.4A
Other languages
Chinese (zh)
Inventor
沈俊杰
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.)
SUZHOU SLAITE ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
SUZHOU SLAITE ELECTRONIC SCIENCE & TECHNOLOGY 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 SUZHOU SLAITE ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd filed Critical SUZHOU SLAITE ELECTRONIC SCIENCE & TECHNOLOGY Co Ltd
Priority to CN201510223575.4A priority Critical patent/CN104806618A/en
Publication of CN104806618A publication Critical patent/CN104806618A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B35/00Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/284Locking by means of elastic deformation

Abstract

The invention provides a tail self-sealing lock bolt which comprises a screw head and a threaded column, wherein the screw head is fixedly connected with the head of the threaded column into a whole; a stepped shaft is arranged at the tail of the threaded column, and the diameter of the stepped shaft is smaller than that of the head of the threaded column; the stepped shaft is wrapped by a tail sleeve, and the diameter of the tail sleeve is equal to that of the head of the threaded column; external threads are respectively processed on the outer diameter surfaces of the threaded column and the tail sleeve in an integral way; the tail sleeve is made of a elastic non-metallic material. When the tail self-sealing lock bolt is used, the elastic action directly acts on the threaded column, thus being prevented from being loosened. Furthermore, the tail sleeve has larger elastic deformation, and a threaded hole is directly sealed, so that the bolt can bear higher screwing force.

Description

A kind of afterbody selfsealings chek bolt
Art
The invention belongs to hardware technical field, especially relate to a kind of afterbody selfsealings chek bolt.
Background technique
Bolt is a kind of cylindrical threaded fastening piece, is also often called screw.Can be directly used in machinery, can with nut adapted.Traditional bolt is directly overall adopts Structural Hardware, in use, directly adopts screw-thread fit to lock with nut or part.But traditional bolt in use, be usually used on the parts that take regular exercise or shake, bolt easily produces after a long time use and loosens, and what easily make locking element be locked is firm not.Therefore bolt usually also can be assisted with some resilient pads in the process using connection, and prevent from loosening, assembly process is comparatively loaded down with trivial details.And traditional being threaded, also have the gap of some after being threaded between the internal thread of metal parts and outside thread, if therefore bolt is used in some structures run through, if be used for sealing gas or liquid, just than being easier to leakage of leaking gas; Therefore traditional bolt usually also needs to use special sealing gasket in the process of sealing, sometimes also needs to design special sealing configuration.
Conventional bolt is carrying out only producing tightening force by the screw thread generation deformation firmly tightening bolt bolt constantly in fastening process in addition, because these deformation mainly concentrate on several screw threads of bolt head, therefore the main tightening force of bolt provides primarily of several screw threads of stud end.Easily the outside thread of bolt is damaged when screw thread torsion is excessive like this.
Summary of the invention
For above-mentioned problem, the object of the present invention is to provide a kind of easy to use, after a procedure can auto lock, prevent from loosening, self-sealing afterbody selfsealings chek bolt can be carried out in double thread hole simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: this afterbody selfsealings chek bolt comprises spiral shell head, screw column; Described spiral shell head is fixedly connected with one-body molded with screw column head, the afterbody of described screw column is designed with the multidiameter shaft that diameter is less than head diameter, described multidiameter shaft is enclosed with the tail cover that diameter is the same with screw column head diameter, the external diameter surface that described screw column and tail overlap is processed with integrated outside thread, and described tail cover uses resilient nonmetallic material to make.
As preferably, described tail cover uses plastics or rubber material to make.
As preferably, described spiral shell head adopts hexagon head or interior hexagonal structure.
As preferably, described tail cover is connected with adopting worm structure between multidiameter shaft.
As preferably, between described tail cover top and screw column stepped locations, be equipped with cushion.
Beneficial effect of the present invention is: this afterbody selfsealings chek bolt usage mode is similar to conventional bolt, does not need resilient pad and its sealing gasket when just this bolt uses; When this bolt uses, described tail cover part can produce larger deformation, produces elastic force to the screw column of metal, and like this when the part movement or the vibrations that use this bolt, described tail cover directly will produce elastic reaction by double thread post, prevents it from loosening.And tail cover can produce larger elastic strain, can seal in direct double thread hole, under the environment needing sealing, use this bolt will be more convenient like this, do not need to use sealing gasket and other sealing configuration, simultaneously because whole tail cover outside is all sealing surface, sealing effect is better.Due to this bolt fastened time, tail cover also can produce larger deformation, make the warping force of this bolt entirety not only act on several screw threads of stud head, the lashing force making bolt to bear like this is larger.
Accompanying drawing explanation
Fig. 1 is the structural representation in afterbody selfsealings chek bolt front.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
As shown in the embodiment shown in fig, this afterbody selfsealings chek bolt, it comprises spiral shell head 1, screw column 2; Described spiral shell head 1 is fixedly connected with one-body molded with screw column 2 head, the afterbody of described screw column 2 is designed with the multidiameter shaft 21 that diameter is less than head diameter, the tail described multidiameter shaft 21 being enclosed with diameter the same with screw column 2 head diameter overlaps 3, the external diameter surface that described screw column 2 and tail overlap 3 is processed with integrated outside thread, and described tail cover 3 uses resilient nonmetallic material to make.
This bolt is when specifically making, and the blank of described spiral shell head 1, screw column 2 one is first produced, and then the blank of tail cover 3 is wrapped in described multidiameter shaft 21, finally carries out outside thread processing.
This afterbody selfsealings chek bolt usage mode is similar to conventional bolt, does not need resilient pad and its sealing gasket when just this bolt uses; When this bolt uses, described tail overlaps 3 parts can produce larger deformation, produces elastic force to the screw column 2 of metal, and like this when the part movement or the vibrations that use this bolt, described tail cover 3 directly will produce elastic reaction by double thread post 2, prevents it from loosening.And tail cover 3 can produce larger elastic strain, can seal in direct double thread hole, under the environment needing sealing, use this bolt will be more convenient like this, do not need to use sealing gasket and other sealing configuration, simultaneously because whole tail cover outside is all sealing surface, sealing effect is better.
Due to this bolt fastened time, tail cover also can produce larger deformation, make the warping force of this bolt entirety not only act on several screw threads of stud head, the lashing force making bolt to bear like this is larger.
Described tail cover 3 uses plastics or rubber material to make.Use plastics or rubber material make described tail overlap 3 time, the mode of injection moulding can be adopted directly tail cover 3 to be injected into described multidiameter shaft 21 position, straight forming.
As shown in Figure 1, described spiral shell head 1 adopts hexagon head structure; Described spiral shell head 1 also can adopt interior hexagonal or other structure.
As shown in Figure 1, described tail cover 3 adopts worm structure to be connected with between multidiameter shaft 21.Adopt demountable structure between described tail cover 3 and multidiameter shaft 21, like this when described tail cover 3 damages, the mode changing tail cover 3 can be adopted to be repaired by whole bolt.Described tail overlaps between 3 tops and screw column 2 stepped locations and is also equipped with cushion 4.Described cushion 4 can play the top pressure effect to tail cover 3, and like this when this bolt is twisted, it is larger that described tail overlaps 3 deformation quantities, and double thread hole produces larger grasp, makes bolt whole stressed more balanced.

Claims (5)

1. an afterbody selfsealings chek bolt, it comprises spiral shell head (1), screw column (2); Described spiral shell head (1) is fixedly connected with one-body molded with screw column (2) head, it is characterized in that: the afterbody of described screw column (2) is designed with the multidiameter shaft (21) that diameter is less than head diameter, described multidiameter shaft (21) is enclosed with the tail cover (3) that diameter is the same with screw column (2) head diameter, described screw column (2) is processed with integrated outside thread with the external diameter surface of tail cover (3), and described tail cover (3) uses resilient nonmetallic material to make.
2. afterbody selfsealings chek bolt according to claim 1, is characterized in that: described tail cover (3) uses plastics or rubber material to make.
3. afterbody selfsealings chek bolt according to claim 1, is characterized in that: described spiral shell head (1) adopts hexagon head or interior hexagonal structure.
4. afterbody selfsealings chek bolt according to claim 1, is characterized in that: described tail cover (3) adopts worm structure to be connected with between multidiameter shaft (21).
5. afterbody selfsealings chek bolt according to claim 4, is characterized in that: be equipped with cushion (4) between described tail cover (3) top and screw column (2) stepped locations.
CN201510223575.4A 2015-05-05 2015-05-05 Tail self-sealing lock bolt Pending CN104806618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510223575.4A CN104806618A (en) 2015-05-05 2015-05-05 Tail self-sealing lock bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510223575.4A CN104806618A (en) 2015-05-05 2015-05-05 Tail self-sealing lock bolt

Publications (1)

Publication Number Publication Date
CN104806618A true CN104806618A (en) 2015-07-29

Family

ID=53691732

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510223575.4A Pending CN104806618A (en) 2015-05-05 2015-05-05 Tail self-sealing lock bolt

Country Status (1)

Country Link
CN (1) CN104806618A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107605912A (en) * 2017-10-27 2018-01-19 江苏昊嘉不锈钢标准件有限公司 A kind of check bolt of special improved structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1492157A (en) * 2002-09-25 2004-04-28 本田技研工业株式会社 Method for improving anti-slackness of steel bolt
JP2009063144A (en) * 2007-09-10 2009-03-26 Koyo Kizai Kk Self-drilling screw, self-drilling anchor, and method of manufacturing self-drilling anchor
CN201269243Y (en) * 2008-08-28 2009-07-08 陈俭敏 Screw
CN103375472A (en) * 2013-06-26 2013-10-30 苏州市吴中区欣鑫开关配件厂 Screw with excellent sealing performance
CN203570800U (en) * 2013-11-20 2014-04-30 浙江群展精密紧固件有限公司 Hexagonal flange face bolt
CN104454888A (en) * 2014-12-19 2015-03-25 贵州精立航太科技有限公司 Self-locking sealing bolt
CN204610503U (en) * 2015-05-05 2015-09-02 苏州思莱特电子科技有限公司 A kind of afterbody selfsealings chek bolt

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1492157A (en) * 2002-09-25 2004-04-28 本田技研工业株式会社 Method for improving anti-slackness of steel bolt
JP2009063144A (en) * 2007-09-10 2009-03-26 Koyo Kizai Kk Self-drilling screw, self-drilling anchor, and method of manufacturing self-drilling anchor
CN201269243Y (en) * 2008-08-28 2009-07-08 陈俭敏 Screw
CN103375472A (en) * 2013-06-26 2013-10-30 苏州市吴中区欣鑫开关配件厂 Screw with excellent sealing performance
CN203570800U (en) * 2013-11-20 2014-04-30 浙江群展精密紧固件有限公司 Hexagonal flange face bolt
CN104454888A (en) * 2014-12-19 2015-03-25 贵州精立航太科技有限公司 Self-locking sealing bolt
CN204610503U (en) * 2015-05-05 2015-09-02 苏州思莱特电子科技有限公司 A kind of afterbody selfsealings chek bolt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107605912A (en) * 2017-10-27 2018-01-19 江苏昊嘉不锈钢标准件有限公司 A kind of check bolt of special improved structure

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SE01 Entry into force of request for substantive examination
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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150729

WD01 Invention patent application deemed withdrawn after publication