CN2051672U - Tensible device of anchor shank - Google Patents
Tensible device of anchor shank Download PDFInfo
- Publication number
- CN2051672U CN2051672U CN 89205178 CN89205178U CN2051672U CN 2051672 U CN2051672 U CN 2051672U CN 89205178 CN89205178 CN 89205178 CN 89205178 U CN89205178 U CN 89205178U CN 2051672 U CN2051672 U CN 2051672U
- Authority
- CN
- China
- Prior art keywords
- anchor shank
- friction sleeve
- anchor pole
- anchor
- 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.)
- Withdrawn
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- Piles And Underground Anchors (AREA)
Abstract
Disclosed is a tensible device of an anchor shank used for supporting surrounding rock in underground rock engineering, belonging to the field of ground layer control and support in underground engineering. Without tensioning function, the existing anchor shank can not adapt to the support work of surrounding rock in underground engineering with large deflection. The utility model is composed of a friction sleeve tube and an anchoring agent ring which are closely connected with the anchor shank by cold-pressing or other methods. Thus the sliding length produced between the anchor shank and the friction sleeve tube is the adjustable tensioning quantity of the device. Anchor shank with rigidity has adjustable tensioning quantity, assuring the support performance of the anchor and enabling the existing anchor shank to have larger function.
Description
But a kind of body of rod anchor pole stretching device that is used for the underground rock engineering surrounding rock supporting belongs to stratum control and support technology field in the underground construction.
At present, various anchor poles are widely used in the rock mass supporting of underground construction, and the existing anchor rod body made from steel, bamboo and wood etc. does not have stretch function, so can not be applicable to the support work of the underground engineering wall rock that deflection is bigger.
At the deficiencies in the prior art part, the purpose of this utility model is: but design a kind of body of rod anchor pole stretching device, after being installed on the existing body of rod anchor pole, can make it have draftability, make original steel, bamboo and wood anchor pole, the needs of surrouding rock deformation under the base area are aligned its amount of tension, enlarge its scope of application.
The technical solution of the utility model is: make friction sleeve pipe (2) with nonmetals, be coated with one deck anchoring agent at its outer wall and form an anchoring agent circle (1), its structure and with the combining as shown in Figure 1 of anchor rod body.
Of the present utility model being characterised in that: a friction sleeve pipe (2) is arranged, and its outer wall scribbles the anchoring agent and forms anchoring agent circle (1).
But Fig. 1 is the structure of this body of rod anchor pole stretching device and the schematic diagram that combines with anchor pole;
But Fig. 2 is the drawing in side sectional elevation of body of rod anchor pole stretching device.
Below in conjunction with embodiment the utility model further is illustrated: make columniform friction sleeve pipe (2) with hard rubber or duroplasts, the friction sleeve pipe also can be made gear shape or triangle, polygon.This sleeve pipe is by colding pressing or other method and anchor rod body (3) closely constitute one.Friction sleeve pipe (2) is exactly the anchored force of anchor pole with the sliding-frictional resistance of anchor rod body, the outer wall of friction sleeve pipe (2) is coated with a circle and moulds fat and make it form a circle anchoring agent circle (1), also can be coated with a circle rapid setting cement at its outer wall, the thickness of anchoring agent circle (1) is between 3～5 millimeters.Its operating principle is: after body of rod anchor pole is packed in the bolthole, anchoring agent on the anchoring agent circle (1) cements in firmly with the rock mass (6) of anchor pole hole wall, when surrounding rock body is pressed, it is exactly the deflection of country rock that the pallet (4) that is fixed on body of rod afterbody by body of rod afterbody nut (5) drives the length that the body of rod moves outward, but and friction sleeve pipe length of the body of rod bottom the bolthole is exactly its amount of tension.According to the situation that country rock changes, the length of decision friction sleeve pipe and the frictional resistance of friction sleeve pipe and anchor rod body.After common body of rod anchor pole is installed this device, can have bigger amount of tension, be adapted to the big surrounding rock supporting engineering of deflection.
The utlity model has following advantage: can make now widely used body of rod anchor pole have adjustable amount of tension, and its anchor force is constant-resistance, the adaptive surface of anchor pole is enlarged. This installation cost is low, processing is simple, easy for installation, be beneficial to popularization.
Claims (6)
- But 1, a kind of body of rod anchor pole stretching device mainly is made up of friction sleeve pipe, anchoring agent circle, it is characterized in that: the friction sleeve pipe is made by nonmetals, and its shape can be circle or polygon, and the friction sleeve outer wall is coated with the anchoring agent and forms the anchoring circle.
- But 2, body of rod anchor pole stretching device according to claim 1 is characterized in that: the friction sleeve pipe is made by hard rubber.
- But 3, body of rod anchor pole stretching device according to claim 1 is characterized in that: friction sleeve pipe profile is cylindrical.
- But 4, body of rod anchor pole stretching device according to claim 1 is characterized in that: friction sleeve pipe profile is a polygon.
- But 5, body of rod anchor pole stretching device according to claim 1, it is characterized in that: said anchoring agent is a resin.
- But 6, body of rod anchor pole stretching device according to claim 1, it is characterized in that: said anchoring agent is a rapid setting cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89205178 CN2051672U (en) | 1989-06-23 | 1989-06-23 | Tensible device of anchor shank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89205178 CN2051672U (en) | 1989-06-23 | 1989-06-23 | Tensible device of anchor shank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2051672U true CN2051672U (en) | 1990-01-24 |
Family
ID=4862387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89205178 Withdrawn CN2051672U (en) | 1989-06-23 | 1989-06-23 | Tensible device of anchor shank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2051672U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116162A (en) * | 2011-03-25 | 2011-07-06 | 平安煤矿瓦斯治理国家工程研究中心有限责任公司 | Tension dispersed anchor cable for coal mine and anchoring method thereof |
| CN110344411A (en) * | 2019-07-23 | 2019-10-18 | 安玉霞 | A kind of construction underground support anchoring device |
-
1989
- 1989-06-23 CN CN 89205178 patent/CN2051672U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116162A (en) * | 2011-03-25 | 2011-07-06 | 平安煤矿瓦斯治理国家工程研究中心有限责任公司 | Tension dispersed anchor cable for coal mine and anchoring method thereof |
| CN102116162B (en) * | 2011-03-25 | 2012-07-25 | 平安煤矿瓦斯治理国家工程研究中心有限责任公司 | Tension dispersed anchor cable for coal mine and anchoring method thereof |
| CN110344411A (en) * | 2019-07-23 | 2019-10-18 | 安玉霞 | A kind of construction underground support anchoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |