CN2350526Y - Anchor-before-pour type anchoring-bolt anchor head device - Google Patents
Anchor-before-pour type anchoring-bolt anchor head device Download PDFInfo
- Publication number
- CN2350526Y CN2350526Y CN 98213562 CN98213562U CN2350526Y CN 2350526 Y CN2350526 Y CN 2350526Y CN 98213562 CN98213562 CN 98213562 CN 98213562 U CN98213562 U CN 98213562U CN 2350526 Y CN2350526 Y CN 2350526Y
- Authority
- CN
- China
- Prior art keywords
- anchor
- anchoring
- head
- bolt
- hangnail
- 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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- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model provides a novel tensile fixing device for an anchor-before-pour type anchoring-bolt anchoring head in a supporting and protecting system of an anchoring bolt. Compared with traditional structures, because a stop block is additionally arranged on the agnail side of the anchoring head, when the anchoring head bears an external pulling force in an anchoring hole, the deformation of an agnail is prevented through the stop block. Compared with the resistance pressure generated of the deformation of the agnail which is not effected by the stop block when the anchoring head is pushed into the anchoring hole, the withdrawal resistance acted on the utility model is increased in a geminate way. So, under the condition that the anchoring bolt with the anchoring head can be posted into the anchoring hole by a human in a labour saving way, the needed high withdrawal resistance is obtained, and the utility model brings the convenience to the construction.
Description
The utility model is the tension fastening devices that is used for the first-anchoring-after-grouting anchor rod anchor head of bolt support system.
Existing first-anchoring-after-grouting anchor rod, in actual use, anchor head not only wants anchor pole to be positioned at the anchor hole center, and the pressure injection slurry to be arranged and overcome the anchor pole deadweight in order to satisfy, after the anchor pole of loading onto anchor head was sent into the anchor hole assigned address, anchor head must guarantee to bear certain uplift resistance and can not withdraw from from anchor hole.This class anchor head usually its external surface is the hangnail that has some, after anchor head enters anchor hole, because of hangnail is out of shape by the anchor hole extruding and produces resistance.The anchor head of this quasi-tradition structure, resistance is approaching substantially with the uplift resistance that can bear in the other direction when anchor head is admitted to anchor hole, makes anchor head when anchor pole needs higher uplift resistance, has only the deformation drag of corresponding increase anchor head hangnail.But the anchor pole that anchor head is housed is the armrest workman to be tried hard to recommend into anchor hole, like this, just makes troubles to construction.
The purpose of this utility model is to provide a kind of anchor pole of loading onto anchor head that makes very laborsavingly to send into anchor hole, but the tension fastening devices of the higher first-anchoring-after-grouting anchor rod anchor head of uplift resistance.
This device mainly is made up of anchor pole 4, anchor head 7, hangnail 5, block 6 and stop grouting plug 3 etc.It is characterized in that anchor head 7 and anchor pole 4 one ends are by being threaded; Hangnail 5, block 6 and anchor head 7 can constitute one; Block 6 is positioned at a corresponding side of hangnail 5.
Owing to set up block in anchor head hangnail one side, make anchor head in anchor hole when bearing external broach, because of block has stoped the distortion of hangnail, resistance was not compared when the hangnail distortion when pushing anchor hole with anchor head was not influenced by block, its uplift resistance that bears is multiplied.So just can send under the anchor hole assigned address condition in that the anchor pole that will load onto anchor head is very laborsaving, just obtain required higher uplift resistance, bring convenience to construction.
Accompanying drawing one is the structural representation of this device.
The purpose of this utility model is achieved in that anchor head 7 is connected with anchor pole 4 one ends After, it is sent into anchor hole, the hangnail 5 on the anchor head 7 is compressive deformation since hangnail 5 this The time deformation direction and the position opposite of corresponding block 6, the distortion of hangnail 5 is not subjected to block 6 Effect, only needing to overcome hangnail 5 self-deformations can send anchor pole 4 anchor heads 7 into anchor hole In. After anchor pole 4 and anchor head 7 be placed in assigned address, can basis at anchor pole 4 other ends Stop grouting plug 3, backing plate 2 and nut 1 shutoff anchor hole outer end are loaded onto in designing requirement, then to anchor Hole grouting affects because being subjected to grouting pressure, and anchor pole 4 and anchor head 7 will bear external broach, like this, The stress deformation direction of hangnail 5 is just in time opposite when sending into, and at this moment block 6 will stop down The distortion of thorn 5 improves the withdrawal resistance of anchor head 7 greatly. Under same withdrawal resistance, band The anchor head 7 of block 6 is arranged, and the intensity of hangnail 5 can reduce greatly, makes the anchor pole 4 can be non-Chang Shengli sends into, and brings convenience to construction.
Below in conjunction with accompanying drawing one and embodiment the utility model is remake and to specify.
Hangnail 5, block 6 is all integral body with anchor head 7, and adopts the engineering plastics manufacturing, and block 6 is near hangnail 5 corresponding sides, makes the opposite direction Free Transform that hangnail 5 can only be when anchor head 7 be sent into anchor hole.After anchor head 7 is connected with anchor pole 4 one ends and sends into anchor hole, because of the diameter of block 6 is slightly less than the anchor hole diameter, though and the diameter of hangnail 5 greater than the anchor hole diameter, hangnail 5 is longer relatively, be subjected to be easy to distortion after the anchor hole extruding, anchor pole 4 can be placed in assigned address easily.Conversely, if certain reason with anchor pole 4 outer drawing, is out of shape because of block 6 stops hangnail 5, required thrust is compared when sending into anchor head 7 anchor poles 4, and its uplift resistance is multiplied.
Claims (1)
1, a kind of first-anchoring-after-grouting anchor rod anchor head assembly mainly is made up of anchor pole (4), anchor head (7), hangnail (5), block (6) and stop grouting plug (3) etc., it is characterized in that anchor head (7) and anchor pole (4) one ends are by being threaded, hangnail (5), block (6) and anchor head (7) can constitute one, and block (6) is positioned at a corresponding side of hangnail (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98213562 CN2350526Y (en) | 1998-03-21 | 1998-03-21 | Anchor-before-pour type anchoring-bolt anchor head device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98213562 CN2350526Y (en) | 1998-03-21 | 1998-03-21 | Anchor-before-pour type anchoring-bolt anchor head device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2350526Y true CN2350526Y (en) | 1999-11-24 |
Family
ID=33967474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98213562 Expired - Fee Related CN2350526Y (en) | 1998-03-21 | 1998-03-21 | Anchor-before-pour type anchoring-bolt anchor head device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2350526Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587507A (en) * | 2017-08-22 | 2018-01-16 | 华北水利水电大学 | Rocket bores earth anchor |
-
1998
- 1998-03-21 CN CN 98213562 patent/CN2350526Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587507A (en) * | 2017-08-22 | 2018-01-16 | 华北水利水电大学 | Rocket bores earth anchor |
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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 |