CN203531937U - Surrounding rock supporting yielding anchor rod device - Google Patents
Surrounding rock supporting yielding anchor rod device Download PDFInfo
- Publication number
- CN203531937U CN203531937U CN201320714002.8U CN201320714002U CN203531937U CN 203531937 U CN203531937 U CN 203531937U CN 201320714002 U CN201320714002 U CN 201320714002U CN 203531937 U CN203531937 U CN 203531937U
- Authority
- CN
- China
- Prior art keywords
- backing plate
- surrounding rock
- anchor rod
- supporting
- bar body
- 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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Abstract
The utility model discloses a surrounding rock supporting yielding anchor rod device. The surrounding rock supporting yielding anchor rod device comprises an anchor rod body, a yielding anchor device, a supporting backing plate and a lock nut, the yielding anchor device is hollow and installed in surrounding rock, first occlusion teeth are arranged in the yielding anchor device, second occlusion teeth are arranged at the inner end of the anchor rod body, the second occlusion teeth are matched with the first occlusion teeth, and enable the anchor rod body to move only towards the surrounding rock, the supporting backing plate sleeves the outer end of the anchor rod body, a plurality of fixing holes for fixing the supporting backing plate on the surrounding rock are formed in the supporting backing plate, and the lock nut is disposed at the outer end of the anchor rod body and located on the outer side of the supporting backing plate. The surrounding rock supporting yielding anchor rod device has the advantages that the structure is simple, the design is reasonable, the operation is simple, convenient and rapid, during usage, teeth on the outer side of the anchor rod body are occluded with the teeth on the inner side of the yielding anchor device during weighting, the anchor rod body can move only towards the surrounding rock under the action of the inner side teeth of the yielding anchor device, thereby, a higher acting force can be tolerated, and a yielding function can be achieved.
Description
Technical field
The utility model belongs to coal mine roadway surrounding rock supporting technical field, specifically relates to a kind of surrounding rock supporting pressure-relieving achor bar device.
Background technology
The demand to the energy along with a large amount of infrastructure constructions and economic development, all can use bolt support technology in hydraulic engineering, construction of tunnel and mine engineering etc.On ore deposit in engineering, the most geological condition of coal mine of China are complicated, roadway maintenance difficulty, anchor pole technology has improved the supporting effect in tunnel significantly, larger reduction support cost, and alleviated artificial labour intensity.Traditional anchor pole has a minute peg block rock bolt, inverted wedge type anchor rod, expansion type rock bolt etc., but these anchor-holding force of anchor bolt are low, and support rigidity is little, poor reliability.Existing support anchor rod has some limitations, and is difficult to meet complex condition, and under especially full coal condition, the requirement of supporting roadway surrounding rock design, has buried hidden danger to Safety of Coal Mine Production.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, a kind of surrounding rock supporting pressure-relieving achor bar device is provided, it is simple in structure, reasonable in design and simple and convenient, in use, tooth by anchor bar body outside presses the tooth of ground tackle inner side to be interlocked when pressing with allowing, and presses under the effect of ground tackle inner tines allowing, and anchor bar body can only move to country rock direction one direction, and then bear larger active force, play the pressure effect that allows.
For achieving the above object, the technical solution adopted in the utility model is: a kind of surrounding rock supporting pressure-relieving achor bar device, it is characterized in that: comprise anchor bar body, allow pressure ground tackle, support backing plate and locking nut, described allowing presses ground tackle to be hollow structure and to be arranged on country rock inside, described allowing presses the inside of ground tackle to be provided with the first tooth engaged, the inner of described anchor bar body is provided with the second tooth engaged, described the second tooth engaged matches with the first tooth engaged and anchor bar body can only be moved to country rock direction, described supporting pad sleeve-board is in the outer end of anchor bar body, on described support backing plate, have for being fixed in the fixing hole on country rock, the quantity of described fixing hole is a plurality of, described locking nut is arranged on the end, outer end of anchor bar body so that support backing plate is locked on anchor bar body, described locking nut is positioned at the outside of supporting backing plate.
Above-mentioned a kind of surrounding rock supporting pressure-relieving achor bar device, is characterized in that: described anchor bar body is steel anchor rod body, described in allow to press ground tackle be that steel allows the pressure ground tackle, described support backing plate be that steel supports backing plate.
Above-mentioned a kind of surrounding rock supporting pressure-relieving achor bar device, is characterized in that: described support backing plate is square support backing plate.
Above-mentioned a kind of surrounding rock supporting pressure-relieving achor bar device, is characterized in that: the quantity of described fixing hole is four, and four fixing hole symmetries are laid on four angles supporting backing plate.
Above-mentioned a kind of surrounding rock supporting pressure-relieving achor bar device, is characterized in that: described fixing hole is screwed hole.
The utility model compared with prior art has the following advantages:
1, the utility model is simple in structure, reasonable in design and simple and convenient.
2, the utility model in use, tooth by anchor bar body outside presses the tooth of ground tackle inner side to be interlocked when pressing with allowing, and presses under the effect of ground tackle inner tines allowing, and anchor bar body can only move to country rock direction one direction, and then bear larger active force, play the pressure effect that allows.
3, the utility model is when pressing, and the tooth in anchor bar body outside is pressed the tooth phase interlock of ground tackle inner side with allowing, and the compressive load of ground tackle is stablized.
4, allowing of the utility model anchor bar body presses stroke large, and later stage supporting capacity is large.
5, the utility model scope of application is wide, can not only well be applicable to coal mine roadway surrounding rock supporting, and also in the Bracing Process applicable to gravity dam reinforcing, bridge engineering, slope project.
Below by drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the upward view of Fig. 1.
Description of reference numerals:
1-anchor bar body; 2-allow pressure ground tackle; 3-locking nut;
4-support backing plate; The 5-the first tooth engaged; The 6-the second tooth engaged;
7-fixing hole.
The specific embodiment
As depicted in figs. 1 and 2, the utility model comprises anchor bar body 1, allow and press ground tackle 2, support backing plate 4 and locking nut 3, described allowing pressed ground tackle 2 for hollow structure and is arranged on country rock inside, described allowing presses the inside of ground tackle 2 to be provided with the first tooth engaged 5, the inner of described anchor bar body 1 is provided with the second tooth engaged 6, described the second tooth engaged 6 matches with the first tooth engaged 5 and anchor bar body 1 can only be moved to country rock direction, described support backing plate 4 is enclosed within the outer end of anchor bar body 1, on described support backing plate 4, have for being fixed in the fixing hole 7 on country rock, the quantity of described fixing hole 7 is a plurality of, described locking nut 3 is arranged on the end, outer end of anchor bar body 1 so that support backing plate 4 is locked on anchor bar body 1, described locking nut 3 is positioned at the outside of supporting backing plate 4.
In the present embodiment, described anchor bar body 1 is steel anchor rod body, described in allow and press ground tackle 2 to allow the pressure ground tackle, described support backing plate 4 be steel support backing plate for steel; Not only cost is low, and high to the supporting stability of country rock.
As shown in Figure 2, described support backing plate 4 is square support backing plate.
As shown in Figure 2, the quantity of described fixing hole 7 is four, and four fixing hole 7 symmetries are laid on four angles supporting backing plate 4; Be convenient to support stable being fixed on country rock of backing plate 4, to prevent that supporting pad plate 4 from sticking up when the supporting.
In the present embodiment, described fixing hole 7 is screwed hole, easy to connect, fixing reliable.
Operating principle of the present utility model is: during use, to allow and press ground tackle 2 inner at country rock by resin-bonding, then by allowing, press the inner of ground tackle 2 send into allow to press in ground tackle 2, afterwards, support backing plate 4 is enclosed within to the outer end of anchor bar body 1, finally locking nut 3 is screwed in to the end, outer end of anchor bar body 1, so that support backing plate 4 is locked on anchor bar body 1.Anchor bar body allows while pressing ground tackle 2 being inserted in, owing to allowing, press the inside of ground tackle 2 to be provided with the first tooth engaged 5, the inner of anchor bar body 1 is provided with the second tooth engaged 6, and the second tooth engaged 6 matches with the first tooth engaged 5, so under the effect of surrouding rock stress, the second tooth engaged 6 and the first tooth engaged 5 phase interlocks, anchor bar body 1 can only move to country rock direction, guarantee the stability of anchor bar body 1, and then born larger active force, played the pressure effect that allows.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure transformation of above embodiment being done according to the utility model technical spirit, all still belongs in the protection domain of technical solutions of the utility model.
Claims (5)
1. a surrounding rock supporting pressure-relieving achor bar device, it is characterized in that: comprise anchor bar body (1), allow and press ground tackle (2), support backing plate (4) and locking nut (3), described allowing pressed ground tackle (2) for hollow structure and is arranged on country rock inside, described allowing presses the inside of ground tackle (2) to be provided with the first tooth engaged (5), the inner of described anchor bar body (1) is provided with the second tooth engaged (6), described the second tooth engaged (6) matches with the first tooth engaged (5) and anchor bar body (1) can only be moved to country rock direction, described support backing plate (4) is enclosed within the outer end of anchor bar body (1), on described support backing plate (4), have for being fixed in the fixing hole (7) on country rock, the quantity of described fixing hole (7) is a plurality of, the end, outer end that described locking nut (3) is arranged on anchor bar body (1) is locked on anchor bar body (1) will support backing plate (4), described locking nut (3) is positioned at the outside of supporting backing plate (4).
2. according to a kind of surrounding rock supporting pressure-relieving achor bar device claimed in claim 1, it is characterized in that: described anchor bar body (1) is steel anchor rod body, described in allow and press ground tackle (2) to allow the pressure ground tackle, described support backing plate (4) they are steel support backing plate for steel.
3. according to a kind of surrounding rock supporting pressure-relieving achor bar device claimed in claim 1, it is characterized in that: described support backing plate (4) is square support backing plate.
4. according to a kind of surrounding rock supporting pressure-relieving achor bar device claimed in claim 3, it is characterized in that: the quantity of described fixing hole (7) is four, four fixing holes (7) symmetry is laid on four angles supporting backing plate (4).
5. according to a kind of surrounding rock supporting pressure-relieving achor bar device claimed in claim 1, it is characterized in that: described fixing hole (7) is screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714002.8U CN203531937U (en) | 2013-11-12 | 2013-11-12 | Surrounding rock supporting yielding anchor rod device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714002.8U CN203531937U (en) | 2013-11-12 | 2013-11-12 | Surrounding rock supporting yielding anchor rod device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203531937U true CN203531937U (en) | 2014-04-09 |
Family
ID=50418158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320714002.8U Expired - Fee Related CN203531937U (en) | 2013-11-12 | 2013-11-12 | Surrounding rock supporting yielding anchor rod device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203531937U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712354A (en) * | 2015-02-03 | 2015-06-17 | 淮南矿业(集团)有限责任公司 | Mining impingement prevention anchor rod and mounting method thereof |
| CN109505640A (en) * | 2018-11-19 | 2019-03-22 | 陕西煤业化工技术研究院有限责任公司 | A kind of screw-type metal pressure-relieving achor bar device |
-
2013
- 2013-11-12 CN CN201320714002.8U patent/CN203531937U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712354A (en) * | 2015-02-03 | 2015-06-17 | 淮南矿业(集团)有限责任公司 | Mining impingement prevention anchor rod and mounting method thereof |
| CN109505640A (en) * | 2018-11-19 | 2019-03-22 | 陕西煤业化工技术研究院有限责任公司 | A kind of screw-type metal pressure-relieving achor bar device |
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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 |
Granted publication date: 20140409 Termination date: 20141112 |
|
| EXPY | Termination of patent right or utility model |