CN2866931Y - Expanding bolt - Google Patents
Expanding bolt Download PDFInfo
- Publication number
- CN2866931Y CN2866931Y CN 200620068431 CN200620068431U CN2866931Y CN 2866931 Y CN2866931 Y CN 2866931Y CN 200620068431 CN200620068431 CN 200620068431 CN 200620068431 U CN200620068431 U CN 200620068431U CN 2866931 Y CN2866931 Y CN 2866931Y
- Authority
- CN
- China
- Prior art keywords
- expansion sleeve
- screw rod
- expansion
- end part
- afterbody
- 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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- Dowels (AREA)
Abstract
This utility relates to an expansion bolt which solves the problem of providing a novel expansion bolt with a better expansion effect. The invention is characterized in that the end part endostoma of the expansion annular tube refers to the obconic tube cooperating with the obconic bar of the end part of the threaded rod, and at least one ring groove are provided on the surface of the end part of the expansion annular tube. Via the cooperation between the obconic tube on the end part of the expansion annular tube and the obconic body on the end part of the threaded rod, the utility model achieves an uniform pressure, an increased friction area formed by squeezing 'and an increased force. The design is reasonable and the structure is simple.
Description
Technical field
The utility model relates to EXPANSION ANCHOR BOLTS.
Background technique
Traditional expansion bolt, its expansion sleeve is a cylindrical tube shape, is sleeved on the screw rod, because expansion sleeve is the sheet iron pipe, less about 0.1 centimetre of range of expansion.
Summary of the invention
The purpose of this utility model is: provide a kind of expansion effect better upset bolt.
Concrete architecture advances design is such:
Upset bolt, comprise screw rod, nut and expansion sleeve, expansion sleeve is sleeved on the screw rod, the afterbody of screw rod is the little inverted cone bar of outer imperial palace, axial uniform four grooves of expansion sleeve and screw rod tail corresponding end, it is characterized in that: the rounding Taper Pipe of described expansion sleeve afterbody internal orifice for cooperating with the inverted cone bar of screw rod tail, the outer surface of expansion sleeve afterbody is provided with one or more annular groove.
The outer surface of expansion sleeve afterbody is provided with two annular grooves.
Useful technique effect of the present utility model is, the rounding Taper Pipe by the expansion sleeve afterbody with can make cooperating of the inverted cone of screw rod tail pressure evenly, the friction area that forms of extruding increases, thereby, improved expansive force.Simultaneously, expansion sleeve adopts plastic materials fully to combine with body of wall and forms bigger frictional force, and the annular groove of its afterbody also plays a part to strengthen frictional force.It is reasonable in design, and is simple in structure, and expansion effect is better,
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is the expansion sleeve structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment 1:
Upset bolt comprises screw rod 1, nut 2 and expansion sleeve 3, and expansion sleeve 3 is sleeved on the screw rod 1, and the afterbody of screw rod 1 is the little inverted cone bar of outer imperial palace, axial uniform four grooves 4 of expansion sleeve 3 and screw rod 1 afterbody corresponding end.Expansion sleeve 3 afterbody internal orifices are the rounding Taper Pipe that cooperates with the inverted cone bar of screw rod 1 afterbody, have an annular groove 4 on the outer surface of expansion sleeve 3 afterbodys.
Embodiment 2:
Have two annular grooves 4 on the outer surface of expansion sleeve 3 afterbodys.
Other is with embodiment 1.
Claims (2)
1, upset bolt, comprise screw rod, nut and expansion sleeve, expansion sleeve is sleeved on the screw rod, the afterbody of screw rod is the little inverted cone bar of outer imperial palace, axial uniform four grooves of expansion sleeve and screw rod tail corresponding end, it is characterized in that: the rounding Taper Pipe of described expansion sleeve afterbody internal orifice for cooperating with the inverted cone bar of screw rod tail, the outer surface of expansion sleeve afterbody is provided with one or more annular groove.
2, upset bolt according to claim 1 is characterized in that: the outer surface of described expansion sleeve afterbody is provided with two annular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068431 CN2866931Y (en) | 2006-01-10 | 2006-01-10 | Expanding bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068431 CN2866931Y (en) | 2006-01-10 | 2006-01-10 | Expanding bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2866931Y true CN2866931Y (en) | 2007-02-07 |
Family
ID=37702636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068431 Expired - Fee Related CN2866931Y (en) | 2006-01-10 | 2006-01-10 | Expanding bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2866931Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607279B (en) * | 2009-07-23 | 2011-05-04 | 宁波安拓实业有限公司 | Multi-location cold-extrusion molding method of tube blank of hit anchor |
| CN101602074B (en) * | 2009-07-23 | 2011-05-04 | 宁波安拓实业有限公司 | Multistation cold extrusion forming method for strong wedge anchor |
| CN102168707A (en) * | 2011-04-25 | 2011-08-31 | 济南纳诺精密机械有限公司 | Built-in bolt type expansion screw |
| CN102644640A (en) * | 2012-04-10 | 2012-08-22 | 余爱芳 | Bidirectional reverse-propelling fastening bolt |
| CN102644639A (en) * | 2012-04-10 | 2012-08-22 | 朱劲荣 | Two-end expansion fastening bolt capable of being propelled at same side |
| CN105019944A (en) * | 2015-08-05 | 2015-11-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Temporary rock wall pipeline erecting device and assembling method thereof |
| CN105864250A (en) * | 2016-04-29 | 2016-08-17 | 国家电网公司 | Expansion screw |
| CN106015265A (en) * | 2016-06-03 | 2016-10-12 | 河南科技大学 | Internal screw for check bolt, and check bolt assembly |
| TWI612225B (en) * | 2015-03-27 | 2018-01-21 | 希爾悌股份有限公司 | Expansion anchor |
-
2006
- 2006-01-10 CN CN 200620068431 patent/CN2866931Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607279B (en) * | 2009-07-23 | 2011-05-04 | 宁波安拓实业有限公司 | Multi-location cold-extrusion molding method of tube blank of hit anchor |
| CN101602074B (en) * | 2009-07-23 | 2011-05-04 | 宁波安拓实业有限公司 | Multistation cold extrusion forming method for strong wedge anchor |
| CN102168707A (en) * | 2011-04-25 | 2011-08-31 | 济南纳诺精密机械有限公司 | Built-in bolt type expansion screw |
| CN102644640A (en) * | 2012-04-10 | 2012-08-22 | 余爱芳 | Bidirectional reverse-propelling fastening bolt |
| CN102644639A (en) * | 2012-04-10 | 2012-08-22 | 朱劲荣 | Two-end expansion fastening bolt capable of being propelled at same side |
| TWI612225B (en) * | 2015-03-27 | 2018-01-21 | 希爾悌股份有限公司 | Expansion anchor |
| US11572911B2 (en) | 2015-03-27 | 2023-02-07 | Hilti Aktiengesellschaft | Expansion anchor |
| CN105019944A (en) * | 2015-08-05 | 2015-11-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Temporary rock wall pipeline erecting device and assembling method thereof |
| CN105864250A (en) * | 2016-04-29 | 2016-08-17 | 国家电网公司 | Expansion screw |
| CN106015265A (en) * | 2016-06-03 | 2016-10-12 | 河南科技大学 | Internal screw for check bolt, and check bolt assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |