CN203560240U - Novel expansion bolt - Google Patents
Novel expansion bolt Download PDFInfo
- Publication number
- CN203560240U CN203560240U CN201320744299.2U CN201320744299U CN203560240U CN 203560240 U CN203560240 U CN 203560240U CN 201320744299 U CN201320744299 U CN 201320744299U CN 203560240 U CN203560240 U CN 203560240U
- Authority
- CN
- China
- Prior art keywords
- handed nut
- telescopic pipe
- rotary shaft
- expansion bolt
- novel expansion
- 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
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to a novel expansion bolt. The novel expansion bolt comprises a rotary shaft and a telescopic pipe, wherein the rotary shaft is installed in the telescopic pipe, the rotary shaft and the telescopic pipe are coaxial, a left-handed nut and a right-handed nut are arranged at the two ends of the rotary shaft, the rotating direction of the left-handed nut is opposite to the rotating direction of the right-handed nut, the two ends of the telescopic pipe are installed on the left-handed nut and the right-handed nut respectively, a plurality of outward protrusions are evenly arranged on the telescopic pipe in the axial direction, and a through hole is formed between every two adjacent protrusions. The novel expansion bolt has the advantages that when the rotary shaft is rotated, both the left-handed nut and the right-handed nut move inwards oppositely, the telescopic pipe is squeezed, the middle of the telescopic pipe protrudes outwards, the contact area between the telescopic pipe and a building is enlarged, and the fastening effect is good; in addition, when the novel expansion bolt is not used, the rotary shaft is rotated reversely, the left-handed nut and the right-handed nut move outwards at the same time, the telescopic pipe is separated from the building, and then the telescopic pipe can be taken out of the building and can be used again.
Description
Technical field
The utility model relates to a kind of Novel expansion bolt, belongs to building product field.
Background technique
The structure of the swollen bolt using is at present generally one end of bolt and is arranged to sphenocephaly, by rotating bolt, expand tube is strutted, reach fastening object, the drawback of its existence is, due to the flared end of expand tube and the surface of contact of building little, can not reach the fastening effect of expection; Secondly, can not reuse.
Summary of the invention
For overcoming the defect of prior art, the utility model provides a kind of Novel expansion bolt.The technical solution of the utility model is: a kind of Novel expansion bolt, comprise rotating shaft and telescopic tube, described rotating shaft is arranged on the inside of telescopic tube, and coaxially arrange with telescopic tube, at the two ends of this rotating shaft, be provided with left-handed nut and right-handed nut, described left-handed nut is contrary with right-handed nut's sense of rotation, the two ends of described telescopic tube are arranged on respectively on left-handed nut and right-handed nut, on this telescopic tube, be provided with uniformly vertically several outside projections, the middle part between two adjacent projections is provided with through hole.
The utility model has the advantages that: during rotating shaft, left-handed nut and right-handed nut all relatively move to the inside, extruding telescopic tube, the middle part outwardly convex of telescopic tube, increases with the area of contact of building, and fastening effect is better; Secondly, when not using, reversing rotating shaft, left-handed nut and right-handed nut move simultaneously laterally, and telescopic tube and building depart from, and can in building, take out, and can use by secondary.
Accompanying drawing explanation
Fig. 1 is agent structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with specific embodiment, further describe the utility model, advantage and disadvantage of the present utility model will be more clear along with description.But these embodiments are only exemplary, scope of the present utility model are not formed to any restriction.It will be understood by those skilled in the art that and do not departing under spirit and scope of the present utility model and can the details of technical solutions of the utility model and form modified or be replaced, but these modifications and replacement all fall in protection domain of the present utility model.
Referring to Fig. 1, the utility model relates to: a kind of Novel expansion bolt, comprise rotating shaft 1 and telescopic tube 4, described rotating shaft 1 is arranged on the inside of telescopic tube 4, and coaxially arrange with telescopic tube 4, at the two ends of this rotating shaft 1, be provided with left-handed nut 2 and right-handed nut 3, described left-handed nut 2 and right-handed nut 3 sense of rotation (are provided with left-handed thread and right-handed thread on the contrary in rotating shaft 1, in left-handed thread, be combined with left-handed nut, on right-handed thread, be combined with right-handed nut), the two ends of described telescopic tube 4 are arranged on respectively on left-handed nut 2 and right-handed nut 3, on this telescopic tube 4, be provided with uniformly vertically several outside projections 6, middle part between two adjacent projections 6 is provided with through hole 5.
Working principle of the present utility model is: during rotating shaft, left-handed nut and right-handed nut all relatively move to the inside, extruding telescopic tube, and the middle part outwardly convex of telescopic tube, increases with the area of contact of building, and fastening effect is better; Secondly, when not using, reversing rotating shaft, left-handed nut and right-handed nut move simultaneously laterally, and telescopic tube and building depart from, and can in building, take out.
Claims (1)
1. a Novel expansion bolt, it is characterized in that: comprise rotating shaft and telescopic tube, described rotating shaft is arranged on the inside of telescopic tube, and coaxially arrange with telescopic tube, at the two ends of this rotating shaft, be provided with left-handed nut and right-handed nut, described left-handed nut is contrary with right-handed nut's sense of rotation, the two ends of described telescopic tube are arranged on respectively on left-handed nut and right-handed nut, on this telescopic tube, be provided with uniformly vertically several outside projections, the middle part between two adjacent projections is provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744299.2U CN203560240U (en) | 2013-11-22 | 2013-11-22 | Novel expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744299.2U CN203560240U (en) | 2013-11-22 | 2013-11-22 | Novel expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560240U true CN203560240U (en) | 2014-04-23 |
Family
ID=50509963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320744299.2U Expired - Fee Related CN203560240U (en) | 2013-11-22 | 2013-11-22 | Novel expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560240U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545554A (en) * | 2017-01-20 | 2017-03-29 | 武汉宁泉科技有限公司 | A kind of expansion connects firmly modular system |
| CN106763048A (en) * | 2016-12-25 | 2017-05-31 | 黄传勇 | A kind of expansion bolt |
| CN106884837A (en) * | 2017-03-30 | 2017-06-23 | 红塔烟草(集团)有限责任公司 | The expansion bolt that a kind of easy taking-up can be reused |
| CN111237317A (en) * | 2020-03-18 | 2020-06-05 | 成都迈特航空制造有限公司 | Anti-loosening high-temperature-resistant fastening assembly with adjustable pretightening force |
-
2013
- 2013-11-22 CN CN201320744299.2U patent/CN203560240U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763048A (en) * | 2016-12-25 | 2017-05-31 | 黄传勇 | A kind of expansion bolt |
| CN106545554A (en) * | 2017-01-20 | 2017-03-29 | 武汉宁泉科技有限公司 | A kind of expansion connects firmly modular system |
| CN106545554B (en) * | 2017-01-20 | 2020-02-04 | 深圳宁泉科技有限公司 | Expansion fixed connection module system |
| CN106884837A (en) * | 2017-03-30 | 2017-06-23 | 红塔烟草(集团)有限责任公司 | The expansion bolt that a kind of easy taking-up can be reused |
| CN106884837B (en) * | 2017-03-30 | 2023-09-01 | 红塔烟草(集团)有限责任公司 | Expansion bolt capable of being taken out easily and being reused |
| CN111237317A (en) * | 2020-03-18 | 2020-06-05 | 成都迈特航空制造有限公司 | Anti-loosening high-temperature-resistant fastening assembly with adjustable pretightening force |
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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: 20140423 Termination date: 20161122 |