CN2462128Y - Tooth shape building anchor bolt for concrete - Google Patents
Tooth shape building anchor bolt for concrete Download PDFInfo
- Publication number
- CN2462128Y CN2462128Y CN 01201104 CN01201104U CN2462128Y CN 2462128 Y CN2462128 Y CN 2462128Y CN 01201104 CN01201104 CN 01201104 CN 01201104 U CN01201104 U CN 01201104U CN 2462128 Y CN2462128 Y CN 2462128Y
- Authority
- CN
- China
- Prior art keywords
- anchor bolt
- expansion sleeve
- concrete
- anchoring
- sleeve pipe
- 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)
- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model relates to a tooth-shaped building anchor bolt for concrete, which comprises an anchor rod which is provided with an expansion cone at the end part, an expansion sleeve pipe and a clamping part, wherein, the lower end part of the expansion sleeve pipe has four cuts. The utility model is characterized in that the outer column surface of the lower end part of the expansion sleeve pipe is provided with annular convex and concave tooth stripes or inverse tooth-shaped stripes or positive tooth-shaped stripes. The anchor bolt is fastened to cause the expansion sleeve pipe to be expanded in a hole, and simultaneously, the stripes at the lower end of the expansion sleeve pipe are embedded into the wall of a concrete hole. Thereby, the anchoring force of the anchor bolt and the friction force of an anchoring end are improved, the stability of the anchor bolt is improved, the anchoring effect is good, and the deformation and the slippage are not easy to generate. The utility model can be used for anchoring concrete, and has the anchoring characteristics of an expansion type anchor bolt and a back cutting hole expanding type anchor bolt.
Description
The utility model relates to a kind of concrete building anchor bolt.
Existing concrete is different with structure by the anchorage effect principle of crab-bolt with building anchor bolt, is divided into intumescent crab-bolt and reaming type crab-bolt; Be divided into moment of torsion controlling type and displacement controllable again by the anchoring control mode.After the crab-bolt anchoring, mainly expand by expansion sleeve, the extruded concrete hole wall, and produce frictional force and bear outside pulling capacity, therefore, the anchor type of expansion sleeve in concrete is the key point of crab-bolt anchoring property quality.Existing crab-bolt unstable properties, anchoring effect is poor, yielding slippage, anchor is incessantly.
The purpose of this utility model provides a kind of gear sleeve shape concrete building anchor bolt, improves the crab-bolt stability, prevents crab-bolt distortion slippage.
The utility model gear sleeve shape concrete is with the technological scheme of building anchor bolt: it comprises that there is anchor pole, expansion sleeve and the secure component of expansion cone the end, there are four otch the underpart of expansion sleeve, it is characterized in that: expansion sleeve underpart outer cylinder has ring-type convex-concave groove.
Above-mentioned ring-type convex-concave groove is pawl shape line or positive profile of tooth line.
Advantage of the present utility model: this crab-bolt is simple in structure, high performance cheap, and price has only about 2 yuan; With crab-bolt fastening after, expansion sleeve is distending in the hole, the extruding hole wall, the groove of expansion sleeve lower end is mounted in the concrete hole wall simultaneously, thereby increased the anchor force of crab-bolt and the frictional force of anchored end greatly, improved the crab-bolt stability, anchoring effect is good, not yielding slippage is difficult for being pulled out destruction.Can be used for the concrete anchoring, have concurrently the intumescent crab-bolt and after cut the anchoring feature of reaming type crab-bolt.
Below in conjunction with drawings and Examples the utility model is described in detail:
Fig. 1 is the utility model embodiment's a structural representation.
Embodiment as shown in Figure 1, crab-bolt adopts structural steel, anchor pole is the post bevel-type, top is that screw rod 1, underpart are expansion cone 2; Expansion sleeve 3 wall thickness 2mm, circumference is processed into pawl shape groove 4 in the outside, underpart of expansion sleeve, and cuts the otch of 4 200mm, and at the circular hole 5 of the end of otch addition R15, screw rod is fastening by secure component 6.Secure component 6 comprises nut, pad etc.By the moment of torsion control mode with crab-bolt fastening after, expansion sleeve is distending extruding hole wall in the hole, the pawl of expansion sleeve lower end is mounted in the concrete hole wall simultaneously, cuts the effect of reaming after the pawl of expansion sleeve lower end part has.
Claims (2)
1, a kind of gear sleeve shape concrete building anchor bolt comprises that there is anchor pole, expansion sleeve and the secure component of expansion cone the end, and there are four otch the underpart of expansion sleeve, it is characterized in that: expansion sleeve underpart outer cylinder has ring-type convex-concave groove.
2, gear sleeve shape concrete building anchor bolt according to claim 1 is characterized in that: described ring-type convex-concave groove is pawl shape line or positive profile of tooth line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01201104 CN2462128Y (en) | 2001-01-12 | 2001-01-12 | Tooth shape building anchor bolt for concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01201104 CN2462128Y (en) | 2001-01-12 | 2001-01-12 | Tooth shape building anchor bolt for concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2462128Y true CN2462128Y (en) | 2001-11-28 |
Family
ID=33623235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01201104 Expired - Fee Related CN2462128Y (en) | 2001-01-12 | 2001-01-12 | Tooth shape building anchor bolt for concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2462128Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660337B (en) * | 2009-09-09 | 2011-04-13 | 朱国强 | Self undercut anchor |
| CN102635642A (en) * | 2011-02-14 | 2012-08-15 | 施耐德电器工业公司 | An assembly device and a transmission device comprising the same |
| CN109695463A (en) * | 2019-03-08 | 2019-04-30 | 成都理工大学 | A kind of pressure-pipe type frictional resistance type Extendable anchor rod |
-
2001
- 2001-01-12 CN CN 01201104 patent/CN2462128Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660337B (en) * | 2009-09-09 | 2011-04-13 | 朱国强 | Self undercut anchor |
| CN102635642A (en) * | 2011-02-14 | 2012-08-15 | 施耐德电器工业公司 | An assembly device and a transmission device comprising the same |
| CN102635642B (en) * | 2011-02-14 | 2016-03-23 | 施耐德电器工业公司 | A kind of assembling device and the transmission device comprising this assembling device |
| CN109695463A (en) * | 2019-03-08 | 2019-04-30 | 成都理工大学 | A kind of pressure-pipe type frictional resistance type Extendable anchor rod |
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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 |