CN205243546U - Telescopic stock - Google Patents
Telescopic stock Download PDFInfo
- Publication number
- CN205243546U CN205243546U CN201521082078.9U CN201521082078U CN205243546U CN 205243546 U CN205243546 U CN 205243546U CN 201521082078 U CN201521082078 U CN 201521082078U CN 205243546 U CN205243546 U CN 205243546U
- Authority
- CN
- China
- Prior art keywords
- rod
- sleeve
- stock
- telescopic
- nut
- 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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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a telescopic stock, concretely relates to coal mining underworkings and chamber support technical field, this utility model have solved current tunnel stock and have mainly adopted stiffness large deformation material to connect the stock, can make the stock break destruction when the tensile stress is greater than its self intensity, lose the not enough of supprot effect. This telescopic stock, including the body of rod, the cover has the sleeve on the body of rod, and the body of rod freely slides along the sleeve inner wall, and the one end and the telescopic bottom of the body of rod form one section space, and it has the hydraulic pressure agent to store in the space, is equipped with the nut on the other end of the body of rod, and the below of nut is provided with the plate mat, and the sleeve is the cylindrical metal hollow cylinder, and telescopic one end is seals the form, and the other end is the opening form, and the plate mat is circle annular metallic dish.
Description
Technical field
The utility model relates to coal mining underworkings and chamber support technical field, is specifically related to a kind of telescopic anchor pole.
Background technology
Suspension roof support has become the main supporting means of current down-hole supporting, and the annual anchor pole use amount of China is hundreds of millions of, because ofThis working effect that how to improve anchor pole is significant in life is produced. The effect of common bolt is resisting by self mainlyDraw and shear strength improves globality and the intensity of country rock, because anchor pole itself belongs to elastomeric material, generally obey PoissonThan effect, therefore can produce the destruction of breaking of anchor pole in the time that tension is greater than the intensity of himself, lose support action. Therefore howImprove the anchoring strengthening action of anchor pole and will greatly improve the safety coefficient of support system, reach colliery and about Geological Engineering safe,High yield.
Utility model content
The purpose of this utility model is mainly to adopt stiffness large deformation material to connect anchor pole for existing roadway bolt, should when drawingPower can make anchor pole break destruction while being greater than himself intensity, loses the deficiency of support action, has proposed by adopting sleeve, liquidThe viscosity of pressing agent to be integrated with anchor pole three is connected setting, under the high stress producing, the body of rod is greatly drawn at rock movementStretch power, separate with sleeve, the hydraulic pressure agent between the two is produced to huge vacuum expansionary force, press effect thereby reach certain allowingThe telescopic anchor pole of one of fruit.
The following technical scheme of the concrete employing of the utility model:
A kind of telescopic anchor pole, comprises the body of rod, and on the described body of rod, cover has sleeve, and the described body of rod is free to slide along sleeve lining, instituteState one end of the body of rod and the bottom of sleeve and form one section of space, in described space, store hydraulic pressure agent, on the other end of the described body of rodBe provided with nut, the below of described nut is provided with disc.
Preferably, described sleeve is cylindrical metal hollow cylinder, and one end of described sleeve is closed, and the other end is opening-like.
Preferably, described disc is circular ring metal dish.
The beneficial effect the utlity model has is: by the hydraulic pressure agent of annotating in the space between the body of rod and sleeve, utilize the body of rodMake hydraulic pressure agent gasification with the sleeve huge vacuum producing while separating that is stretched, thereby produce the absciss layer of huge pulling force opposing country rock.Therefore the body of rod produces under larger stretcher strain, and rock stratum generating unit separating layer inter-laminar stress reduces, and allows pressure effect, better supportingTunnel and chamber.
Brief description of the drawings
Fig. 1 is this telescopic large deformation anchor rod structural representation.
Wherein, 1 is the body of rod, and 2 is sleeve, and 3 is hydraulic pressure agent, and 4 is disc, and 5 is nut.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, detailed description of the invention of the present utility model is described further:
As shown in Figure 1, a kind of telescopic anchor pole, comprises the body of rod 1, and on the body of rod 1, cover has sleeve 2, and the body of rod 1 is along sleeve 2 inwallsBe free to slide, one section of space is formed on one end of the body of rod and the bottom of sleeve, stores hydraulic pressure agent 3, another of the body of rod 1 in spaceEnd is provided with nut 5, and the below of nut 5 is provided with disc 4, and sleeve 2 is cylindrical metal hollow cylinder, one end of sleeve 2Be closed, the other end is opening-like, and disc 4 is circular ring metal dish.
The operation principle of this telescopic large deformation anchor rod is: the hydraulic pressure agent of excessively annotating in the space between the body of rod 1 and sleeve 2, profitHydraulic pressure agent 3 is gasified by the body of rod 1 and the sleeve 2 huge vacuum producing while separating that is stretched, thereby produce huge pulling force opposingThe absciss layer of country rock. Therefore the body of rod 1 produces under larger stretcher strain, and rock stratum generating unit separating layer inter-laminar stress reduces, and allows pressureEffect, better supported laneway and chamber.
Certainly, above-mentioned explanation is not to restriction of the present utility model, and the utility model is also not limited in above-mentioned giving an example, this skillVariation, remodeling, interpolation or replacement that the technical staff in art field makes in essential scope of the present utility model, also should belong toProtection domain of the present utility model.
Claims (3)
1. a telescopic anchor pole, is characterized in that, comprises the body of rod, and on the described body of rod, cover has sleeve, and the described body of rod is along in sleeveWall is free to slide, and one section of space is formed on one end of the described body of rod and the bottom of sleeve, stores hydraulic pressure agent in described space, described inThe other end of the body of rod is provided with nut, and the below of described nut is provided with disc.
2. the telescopic anchor pole of one as claimed in claim 1, is characterized in that, described sleeve is cylindrical metal hollow cylinder,One end of described sleeve is closed, and the other end is opening-like.
3. the telescopic anchor pole of one as claimed in claim 1, is characterized in that, described disc is circular ring metal dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521082078.9U CN205243546U (en) | 2015-12-23 | 2015-12-23 | Telescopic stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521082078.9U CN205243546U (en) | 2015-12-23 | 2015-12-23 | Telescopic stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205243546U true CN205243546U (en) | 2016-05-18 |
Family
ID=55942626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521082078.9U Expired - Fee Related CN205243546U (en) | 2015-12-23 | 2015-12-23 | Telescopic stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205243546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187533A (en) * | 2021-05-10 | 2021-07-30 | 南通理工学院 | Recoverable hydraulic pressure of big stroke lets pressure stock |
-
2015
- 2015-12-23 CN CN201521082078.9U patent/CN205243546U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187533A (en) * | 2021-05-10 | 2021-07-30 | 南通理工学院 | Recoverable hydraulic pressure of big stroke lets pressure stock |
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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: 20160518 Termination date: 20161223 |