CN102758822A - Bolt structure for preventing thread from sliding - Google Patents
Bolt structure for preventing thread from sliding Download PDFInfo
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- CN102758822A CN102758822A CN2012102197087A CN201210219708A CN102758822A CN 102758822 A CN102758822 A CN 102758822A CN 2012102197087 A CN2012102197087 A CN 2012102197087A CN 201210219708 A CN201210219708 A CN 201210219708A CN 102758822 A CN102758822 A CN 102758822A
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- bolt
- thread
- polished rod
- screw
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Abstract
The invention discloses a bolt structure for preventing a thread from sliding. The bolt structure comprises a bolt head and a bolt bar, wherein a screwing part of the bolt bar is provided with an external thread, a guide polish rod is arranged at the front end of the screwing part, and the size of the guide polish rod is smaller than the inside tolerance diameter of the external thread. The bolt structure disclosed by the invention solves the problem that the thread slides due to inclination or oblique stress generated in the manual, electric and pneumatic equipment operation process before the traditional bolt is occluded with a thread hole of a connected part. A section of polish rod the diameter of which is smaller than that of an internal thread of the bolt is arranged at the front section of the bolt, and the polish rod is used for carrying out vertical guiding before the bolt is occluded with the thread hole, therefore the vertical stress of the bolt is ensured and the probability of thread sliding is reduced.
Description
Technical field
The present invention relates to a kind of bolt arrangement of anti-screw thread stripped thread, belong to the bolt technical field.
Background technique
The situation of stripped thread may appear in screw in the process of installing and taking out, cause screw to be difficult to take out even can not take out.Such as, when using the conduct of electric tool or pneumatic tool to tighten power, this kind tool generally uses magnetic force to draw screw; In fastening operating process; Can not guarantee the vertical strength of bolt and tapped hole, generally all easy oblique loading causes fragile tapped hole stripped thread; In addition, operator lack experience or exert oneself the excessive stripped thread that also causes screw or bolt easily.
In order to solve the generation of bolt stripped thread situation; One Chinese patent application number is 201020155247.8, and publication number is CN201642293, and denomination of invention discloses a kind of anti-skidding screws that is applied to medically for the utility model patent of anti-stripped thread screws; It has two positions that can supply screw-driver to take out; One is interior hexagonal, and one is outer-hexagonal, can take out through allen driver and outer-hexagonal screw-driver respectively; Make the taking-up of screw that two kinds of methods arranged, avoid the screw stripped thread and can't normally take out causing serious consequence.Though this anti-stripped thread screw provides two kinds of taking-up modes available; But still be not improved for anti-easily this defective of stripped thread of screw, and hexagonal is also very difficult on most of screws, processing, can increases the cost of screw; And cooperate the taking-up screw with allen driver and interior hexagonal; Because oblique loading still exists, therefore, the stripped thread phenomenon still exists.
Summary of the invention
The objective of the invention is to: provide a kind of bolt and hole threaded engagement of making to carry out guide-localization before; Can effectively reduce to tilt and the oblique loading probability; And reach the bolt arrangement that reduces tapped hole stripped thread purpose; Solve existing bolt because of oblique loading, the technical problem of easy stripped thread during taking-up, thus can effectively solve the problem that exists in the above-mentioned existing technology.
The object of the invention realizes through following technical proposals: a kind of bolt arrangement of anti-screw thread stripped thread; Comprise bolt head and bolt shank; The position that screws of said bolt shank is provided with outside thread, is provided with the guiding polished rod screwing the position front end, and the size of said guiding polished rod is less than tolerance diameter in externally threaded.
As a kind of optimal way, said guiding polished rod is cylindrical, and its bottom surface diameter is less than tolerance diameter in externally threaded.
As other a kind of optimal way, said guiding polished rod is up big and down small frustoconic shape, and its upper bottom surface diameter is less than tolerance diameter in externally threaded.
Preferred as further, the length of said guiding polished rod is less than its diameter.
Preferred as further, the top, position that screws of said bolt shank is provided with plain cushion.
Preferred as further, spring washer is established on the top of said bolt shank.
Preferred as further, the coiled hair of said bolt head is cross recess depression, interior hexagonal cylindrical body or fluting coiled hair.
When said bolt head was interior hexagonal cylindrical body, hexagonal tapped hole in which is provided with, the angle between interior each face of hexagonal tapped hole were 120 degree.
Compared with prior art; Beneficial effect of the present invention: this bolt arrangement solved conventional bolt with by before the interlock of connected component tapped hole because the oblique loading that produces in inclination or artificial, electronic, the pneumatic equipment operating process causes screw thread stripped thread problem; At one section polished rod of bolt Front-end Design less than the bolt internal thread diameter; Polished rod carried out vertically-guided before bolt and tapped hole interlock, guaranteed the vertically stressed of bolt, reduced the probability of screw thread stripped thread.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the structural representation of the embodiment of the invention 2.
Wherein: 1-bolt head, 2-bolt shank, 21-screw hexagonal tapped hole in position, 3-guiding polished rod, 4-plain cushion, 5-outside thread, 6-spring washer, the 7-.
Embodiment
In order to make the object of the invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process are except the speciality of mutual repulsion and/or the step; All can make up by any way; Only if special narration all can be replaced by other equivalences or the alternative features with similar purpose, promptly; Only if special narration, an embodiment in a series of equivalences of each characteristic or the similar characteristics.
The present invention discloses a kind of bolt arrangement of anti-screw thread stripped thread; It comprises bolt head 1 and bolt shank 2; The position 21 that screws of said bolt shank 2 is provided with outside thread 5, screw position 21 front ends be provided with the guiding polished rod 3, the size of said guiding polished rod 3 is less than the interior tolerance diameter of outside thread 5.
As shown in Figure 1, said guiding polished rod 3 is cylindrical, and its bottom surface diameter is less than the interior tolerance diameter of outside thread 5; The length of said guiding polished rod 3 is less than its diameter; The concrete size of guiding polished rod 3 according to the length of bolt shank 2 with and diameter of section decide; Polished rod 3 reasonably design and tolerance lead; This guiding polished rod imports by before the screw thread of coupling at bolt bolt is carried out vertically-guided, realizes the purpose of anti-screw thread stripped thread, finally protects screw thread not to be damaged.Said bolt shank 2 screw position 21 above be provided with plain cushion 4, spring washer 6 is established on the top of bolt shank 2, spring washer 6 is in use, and whole bolt is played certain buffer function.
As shown in Figure 2; Said guiding polished rod 3 is up big and down small frustoconic shape, and its upper bottom surface diameter is less than the interior tolerance diameter of outside thread 5, when said bolt head 1 is interior hexagonal cylindrical body; Hexagonal tapped hole 7 in which is provided with, the angle between interior hexagonal tapped hole 7 each faces are 120 degree.
Guiding polished rod 3 imports by before the screw thread of coupling at bolt bolt is carried out vertically-guided; Realize the purpose of anti-screw thread stripped thread; In the time can not well taking out bolt through external thread structure, can also screw in perhaps through interior hexagonal tapped hole 7 and take out bolt, play the effect of double insurance.
In addition,, can also guiding polished rod 3 be related to squarely or rhombus cylindrical form, satisfy the special bolts connection request as other selections.It is first-class that the coiled hair of bolt head also can be cross recess depression, interior hexagonal cylindrical body or slotted panel, because the effect of guiding polished rod, therefore, the bolt head of practical any structure all can prevent the bolt stripped thread.
It is to be noted; Accompanying drawing only is with graphic mode principles more of the present invention to be described; Because the those of ordinary skill to constructed field is to be easy to carry out on this basis some modifications; Therefore this specification be not be to the present invention be confined to shown in described concrete structure and Applicable scope in because its application prospect is extensive, can be various screw threads and relatively adopt in the mechanical coupling of fragility.The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the bolt arrangement of an anti-screw thread stripped thread; Comprise bolt head (1) and bolt shank (2); The position (21) that screws of said bolt shank (2) is provided with outside thread (5); It is characterized in that: screw position (21) front end be provided with the guiding polished rod (3), the size of said guiding polished rod (3) is less than the interior tolerance diameter of outside thread (5).
2. the bolt arrangement of anti-screw thread stripped thread as claimed in claim 1 is characterized in that: said guiding polished rod (3) is for cylindrical, and its bottom surface diameter is less than the interior tolerance diameter of outside thread (5).
3. the bolt arrangement of anti-screw thread stripped thread as claimed in claim 1 is characterized in that: said guiding polished rod (3) is up big and down small frustoconic shape, and its upper bottom surface diameter is less than the interior tolerance diameter of outside thread (5).
4. like the bolt arrangement of the described anti-screw thread stripped thread of arbitrary claim in claim 2 or 3, it is characterized in that: the length of said guiding polished rod (3) is less than its diameter.
5. the bolt arrangement of anti-screw thread stripped thread as claimed in claim 4 is characterized in that: the top, position (21) that screws of said bolt shank (2) is provided with plain cushion (4).
6. the bolt arrangement of anti-screw thread stripped thread as claimed in claim 5 is characterized in that: spring washer (6) is established on the top of said bolt shank (2).
7. the bolt arrangement of anti-screw thread stripped thread as claimed in claim 4 is characterized in that: the coiled hair of said bolt head (1) is cross recess depression, interior hexagonal cylindrical body or fluting coiled hair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102197087A CN102758822A (en) | 2012-08-24 | 2012-08-24 | Bolt structure for preventing thread from sliding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102197087A CN102758822A (en) | 2012-08-24 | 2012-08-24 | Bolt structure for preventing thread from sliding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758822A true CN102758822A (en) | 2012-10-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102197087A Pending CN102758822A (en) | 2012-08-24 | 2012-08-24 | Bolt structure for preventing thread from sliding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758822A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090211A (en) * | 2015-09-02 | 2015-11-25 | 无锡市东赫金属制品有限公司 | Fastening bolt |
| CN106089929A (en) * | 2016-08-25 | 2016-11-09 | 安徽六方重联机械股份有限公司 | Pre-tensioned type bolt |
| CN108799300A (en) * | 2018-08-16 | 2018-11-13 | 嘉兴同辉汽配有限公司 | A kind of rotation stop formula boss bolt |
| CN108825625A (en) * | 2018-08-16 | 2018-11-16 | 嘉兴同辉汽配有限公司 | A kind of hexagon socket head cap screw on automotive hub |
| CN113048132A (en) * | 2021-04-23 | 2021-06-29 | 中国重汽集团济南复强动力有限公司 | Bolt assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606819Y (en) * | 2003-01-27 | 2004-03-17 | 华粤五金有限公司 | Fastening bolt |
| CN201288744Y (en) * | 2008-09-24 | 2009-08-12 | 陈楠 | Connection screw of embedded electrical connector |
| CN201433992Y (en) * | 2009-07-21 | 2010-03-31 | 任旭辉 | Double-positioning bolt |
| CN201433984Y (en) * | 2009-07-21 | 2010-03-31 | 任旭辉 | fastening screw |
| CN201433982Y (en) * | 2009-07-20 | 2010-03-31 | 孙建军 | HDR bolt with corrosion prevention, high intensity and self-positioning function |
| CN201439790U (en) * | 2009-06-02 | 2010-04-21 | 宁波金鹏高强度紧固件有限公司 | Screw bolt for fixing transmission shaft and automobile body of automobile |
-
2012
- 2012-08-24 CN CN2012102197087A patent/CN102758822A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606819Y (en) * | 2003-01-27 | 2004-03-17 | 华粤五金有限公司 | Fastening bolt |
| CN201288744Y (en) * | 2008-09-24 | 2009-08-12 | 陈楠 | Connection screw of embedded electrical connector |
| CN201439790U (en) * | 2009-06-02 | 2010-04-21 | 宁波金鹏高强度紧固件有限公司 | Screw bolt for fixing transmission shaft and automobile body of automobile |
| CN201433982Y (en) * | 2009-07-20 | 2010-03-31 | 孙建军 | HDR bolt with corrosion prevention, high intensity and self-positioning function |
| CN201433992Y (en) * | 2009-07-21 | 2010-03-31 | 任旭辉 | Double-positioning bolt |
| CN201433984Y (en) * | 2009-07-21 | 2010-03-31 | 任旭辉 | fastening screw |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090211A (en) * | 2015-09-02 | 2015-11-25 | 无锡市东赫金属制品有限公司 | Fastening bolt |
| CN106089929A (en) * | 2016-08-25 | 2016-11-09 | 安徽六方重联机械股份有限公司 | Pre-tensioned type bolt |
| CN108799300A (en) * | 2018-08-16 | 2018-11-13 | 嘉兴同辉汽配有限公司 | A kind of rotation stop formula boss bolt |
| CN108825625A (en) * | 2018-08-16 | 2018-11-16 | 嘉兴同辉汽配有限公司 | A kind of hexagon socket head cap screw on automotive hub |
| CN113048132A (en) * | 2021-04-23 | 2021-06-29 | 中国重汽集团济南复强动力有限公司 | Bolt assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121031 |