CN103343767A - Expansion check bolt - Google Patents
Expansion check bolt Download PDFInfo
- Publication number
- CN103343767A CN103343767A CN2013103120439A CN201310312043A CN103343767A CN 103343767 A CN103343767 A CN 103343767A CN 2013103120439 A CN2013103120439 A CN 2013103120439A CN 201310312043 A CN201310312043 A CN 201310312043A CN 103343767 A CN103343767 A CN 103343767A
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- CN
- China
- Prior art keywords
- bolt
- expansion
- inflation port
- chek
- internal thread
- Prior art date
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Abstract
The invention discloses an expansion check bolt which comprises a bolt body, an external thread, an internal thread, an internal stud, an expansion piece and an expansion hole. The external thread is located at the bottom of the bolt body. The expansion hole is located in the bottom of the bolt body and formed by the expansion piece. The internal thread is arranged in the expansion piece. The internal stud can be screwed in the expansion hole. In this way, the expansion check bolt has the advantages of being high in reliability, compact in structure, convenient to install, safe, effective and low in price. Meanwhile, the expansion check bolt has a wide market prospect in the fastener field.
Description
Technical field
The present invention relates to fastener areas, particularly relate to a kind of expansion chek bolt.
Background technique
Bolt is the most frequently used fastening pieces of people, and it is simple in structure, and is easy to use, respond well, is widely used in various occasions.But, in the occasion of some existence vibrations, be used for fastening bolt and often take place to become flexible, cause to connect and throw off, machine failure, even cause security incident, make for this reason and can become very urgent and important by effectively anti-loosening bolt.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of expansion chek bolt, expansion by bolt, make its end diameter change, prevent the nut loose or dislocation, have reliability height, compact structure, easy for installation, safe and effective, advantage such as cheap has market prospects widely in fastener areas simultaneously.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of expansion chek bolt is provided, comprise: bolt body, outside thread, internal thread, interior double-screw bolt, intumescent sheet, inflation port, outside thread is positioned at the bolt body bottom, inflation port is positioned at the bolt body bottom, inflation port is made of intumescent sheet, and internal thread is set in the intumescent sheet, and interior double-screw bolt can screw in inflation port.
In a preferred embodiment of the present invention, described inflation port is positioned at bolt bottom, inflation port axis and chek bolt dead in line.
In a preferred embodiment of the present invention, described inflation port is made of six intumescent sheets.
In a preferred embodiment of the present invention, described inflation port inside is provided with internal thread.
In a preferred embodiment of the present invention, described internal thread and interior double-screw bolt interference fit.
In a preferred embodiment of the present invention, described bolt body material is SUS304(0Cr18Ni9).
The invention has the beneficial effects as follows: advantages such as the present invention's chek bolt that expands has reliability height, compact structure, easy for installation, safe and effective, and is cheap have market prospects widely in fastener areas simultaneously.
Description of drawings
In order to be illustrated more clearly in the technological scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the expand structural representation of chek bolt one preferred embodiment of the present invention;
The mark of each parts is as follows in the accompanying drawing: 1, bolt body, 2, outside thread, 3, internal thread, 4, interior double-screw bolt, 5, intumescent sheet, 6, inflation port.
Embodiment
To the technological scheme in the embodiment of the invention be clearly and completely described below, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiments that obtain under the creative work prerequisite.
See also Fig. 1, the embodiment of the invention comprises:
A kind of expansion chek bolt, comprise: bolt body 1, outside thread 2, internal thread 3, interior double-screw bolt 4, intumescent sheet 5, inflation port 6, outside thread 2 is positioned at bolt body 1 bottom, inflation port 6 is positioned at bolt body 1 bottom, inflation port 6 is made of intumescent sheet 5, internal thread 3 is set in the intumescent sheet 5, and interior double-screw bolt 4 can screw in inflation port 6.
Described inflation port 6 is positioned at bolt bottom, inflation port axis and chek bolt dead in line.Intumescent sheet is evenly expanded.
Described inflation port 6 is made of six intumescent sheets 5, can effectively outwards expand.
Described inflation port 6 inside are provided with internal thread 3, double-screw bolt 4 in can screwing in, and double-screw bolt 4 comes off in effectively preventing.
Described internal thread 3 and interior double-screw bolt 4 interference fit are conducive to intumescent sheet and enlarge, and prevent the nut loose or dislocation.。
Described bolt 1 material of main part is SUS304(0Cr18Ni9).Have elasticity and good anti-rust properties preferably.
The expand beneficial effect of chek bolt of the present invention is:
One, the mode by expansion screw changes external diameter, makes nut to become flexible, the reliability height;
Two, use interior double-screw bolt to expand compact structure;
Three, easy for installation, safe and reliable, cheap;
Four, in fastening piece market market prospects are widely arranged.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (6)
1. expansion chek bolt, it is characterized in that, comprise: bolt body, outside thread, internal thread, interior double-screw bolt, intumescent sheet, inflation port, outside thread is positioned at the bolt body bottom, inflation port is positioned at the bolt body bottom, inflation port is made of intumescent sheet, and internal thread is set in the intumescent sheet, and interior double-screw bolt can screw in inflation port.
2. expansion chek bolt according to claim 1 is characterized in that, described inflation port is positioned at bolt bottom, inflation port axis and chek bolt dead in line.
3. expansion chek bolt according to claim 1 is characterized in that, described inflation port is made of six intumescent sheets.
4. expansion chek bolt according to claim 1 is characterized in that, described inflation port inside is provided with internal thread.
5. expansion chek bolt according to claim 1 is characterized in that, described internal thread and interior double-screw bolt interference fit.
6. expansion chek bolt according to claim 1 is characterized in that, described bolt body material is SUS304(0Cr18Ni9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103120439A CN103343767A (en) | 2013-07-24 | 2013-07-24 | Expansion check bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103120439A CN103343767A (en) | 2013-07-24 | 2013-07-24 | Expansion check bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103343767A true CN103343767A (en) | 2013-10-09 |
Family
ID=49278589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103120439A Pending CN103343767A (en) | 2013-07-24 | 2013-07-24 | Expansion check bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103343767A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307232A (en) * | 2019-07-03 | 2019-10-08 | 王仲文 | A kind of screw for preventing from loosening |
| CN113047868A (en) * | 2021-04-01 | 2021-06-29 | 广西安盾交通科技有限公司 | Channel firm in installation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2479075A (en) * | 1944-11-24 | 1949-08-16 | Margaret J Martin | Screw locking means |
| FR2305108A7 (en) * | 1975-03-21 | 1976-10-15 | Guggenheim Hans | Fixing screw locking device - has screw with frusto-conical head acting on split head |
| GB2341655A (en) * | 1998-09-15 | 2000-03-22 | Barry Littlewood | Locking threaded fasteners |
| US20040057810A1 (en) * | 2002-09-21 | 2004-03-25 | Breslin Patrick W. | Split lock screw fastener assembly and method |
| CN102410294A (en) * | 2011-11-17 | 2012-04-11 | 中铁十五局集团有限公司 | Jacking type self-locking bolt |
-
2013
- 2013-07-24 CN CN2013103120439A patent/CN103343767A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2479075A (en) * | 1944-11-24 | 1949-08-16 | Margaret J Martin | Screw locking means |
| FR2305108A7 (en) * | 1975-03-21 | 1976-10-15 | Guggenheim Hans | Fixing screw locking device - has screw with frusto-conical head acting on split head |
| GB2341655A (en) * | 1998-09-15 | 2000-03-22 | Barry Littlewood | Locking threaded fasteners |
| US20040057810A1 (en) * | 2002-09-21 | 2004-03-25 | Breslin Patrick W. | Split lock screw fastener assembly and method |
| CN102410294A (en) * | 2011-11-17 | 2012-04-11 | 中铁十五局集团有限公司 | Jacking type self-locking bolt |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307232A (en) * | 2019-07-03 | 2019-10-08 | 王仲文 | A kind of screw for preventing from loosening |
| CN110307232B (en) * | 2019-07-03 | 2023-06-16 | 浙江启冠精工机械股份有限公司 | Screw capable of preventing loosening |
| CN113047868A (en) * | 2021-04-01 | 2021-06-29 | 广西安盾交通科技有限公司 | Channel firm in installation |
| CN113047868B (en) * | 2021-04-01 | 2023-08-22 | 广西安盾交通科技有限公司 | Firmly-installed channel |
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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: 20131009 |