CN214196368U - Tunnel country rock is with fixed stock with withdrawal resistance adjustable - Google Patents
Tunnel country rock is with fixed stock with withdrawal resistance adjustable Download PDFInfo
- Publication number
- CN214196368U CN214196368U CN202023328290.2U CN202023328290U CN214196368U CN 214196368 U CN214196368 U CN 214196368U CN 202023328290 U CN202023328290 U CN 202023328290U CN 214196368 U CN214196368 U CN 214196368U
- Authority
- CN
- China
- Prior art keywords
- rod
- stock
- rigid coupling
- anchor
- side face
- 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.)
- Active
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a tunnel country rock is with fixed stock with pulling resistance adjustable, including stock, anchor head subassembly, the stock is the horizontal stock form of placing of level, and the front end cover of stock is equipped with the toper go-between of concentric rigid coupling, and the leading flank cover of toper go-between is equipped with the anchor head subassembly, and the rear end of stock is equipped with the T shape pole of concentric rigid coupling, and the cover is equipped with concentric sliding connection's tray on the T shape pole, and the rear end of T shape pole is equipped with the threaded rod of coaxial rigid coupling, and the rear end of threaded rod is equipped with the toper pole of concentric rigid coupling. The utility model discloses a cooperation of each subassembly is used, has solved current stock anchor poor stability and difficult tensile problem of adjusting, and overall structure is simple, has increased stock and country rock inner wall resistance to plucking power, has improved the stability when the stock uses.
Description
Technical Field
The utility model relates to a tunnel country rock protection technical field especially relates to a tunnel country rock is with fixed stock with uplift power adjustable.
Background
The geological conditions of the coal mine in China are complex, weathered roadways are widely distributed, the long-time weathering reduces the stability of surrounding rocks of the roadways, the service life of the roadways is shortened, the maintenance cost of the roadways is increased, and even safety accidents caused by unstable surrounding rocks are caused.
With the development of science and technology, the roadway surrounding rock is generally supported by adopting anchor rods, piles, beams and other combined structures. The anchoring strength and the anti-pulling force of the anchor rod are the main factors for ensuring the stability of the soil body. The conventional anchor rod is anchored by adopting an anchor hole, so that the pretension force is easy to loose, and in addition, the friction force between the contact surface of the anchor rod and the rock-soil body is small, so that the anchor rod and the rock-soil body are not easy to form integral stress.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and providing a fixed anchor rod with adjustable uplift force for roadway surrounding rocks.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a fixed stock is used to tunnel country rock with pulling resistance adjustable, includes stock, anchor head subassembly, the stock is the horizontal stock form of placing, the front end cover of stock is equipped with the toper go-between of concentric rigid coupling, the leading flank cover of toper go-between is equipped with the anchor head subassembly, the rear end of stock is equipped with the T shape pole of concentric rigid coupling, the cover is equipped with concentric sliding connection's tray on the T shape pole, the rear end of T shape pole is equipped with the threaded rod of coaxial rigid coupling, the rear end of threaded rod is equipped with the toper pole of concentric rigid coupling.
Preferably, the anchor head subassembly includes extrusion precession head, dead lever, rectangle pole, the trailing flank of extrusion precession head is equipped with the dead lever of concentric rigid coupling, the trailing flank of dead lever is sunken to have the rectangle draw-in groove, install the spring in the rectangle draw-in groove, the rear end of spring is equipped with the rectangle pole, just the rear end portion of rectangle pole slides and runs through the rectangle draw-in groove and with the leading flank rigid coupling of toper go-between.
Preferably, the back side of the conical rod is provided with a grouting through hole, and the grouting through hole sequentially penetrates through the conical rod, the threaded rod, the T-shaped rod and the long rod and penetrates into the conical connecting ring.
Preferably, the long rod is sleeved with screw sleeves with uniform intervals, and a plurality of communicated grouting pores are uniformly arranged on the outer side surface of the long rod between the adjacent screw sleeves.
Preferably, a hole sealing ring is sleeved on the T-shaped rod and positioned on the front side face of the tray, the hole sealing ring is fixedly connected with the front side face of the tray, a threaded cylinder in threaded connection is sleeved on the threaded rod, and the front end of the threaded cylinder abuts against the rear side face of the tray.
Preferably, a plurality of bolt holes are uniformly recessed in the outer edge of the rear side face of the tray, and expansion bolts in threaded connection are inserted into each bolt hole.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the extrusion screw-in head is firstly inserted into an anchor hole on the surrounding rock, and the threaded rod, the T-shaped rod and the long rod are driven by rotating the conical rod to slowly abut against the inside of the anchor hole, so that the extrusion screw-in head abuts against the inner end of the anchor hole and drives the rectangular rod to inwardly abut against the spring along the rectangular clamping groove, and the stability of the extrusion screw-in head is improved;
2. grouting operation is carried out through the grouting through hole, grouting liquid sequentially penetrates through the conical rod, the threaded rod, the T-shaped rod and the long rod along the grouting through hole and penetrates into the conical connecting ring, and enters the anchor hole through the plurality of grouting fine holes, the grouting liquid fills the anchor hole and is matched with the screw sleeve for solidification;
to sum up, the utility model discloses a cooperation of each subassembly is used, has solved current stock anchor poor stability and difficult tensile problem of adjusting, and overall structure is simple, has increased stock and country rock inner wall resistance to plucking power, has improved the stability when the stock uses.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limitation. In the drawings:
fig. 1 is a front view of the present invention;
FIG. 2 is a front sectional view of the present invention;
fig. 3 is a right side view of the present invention;
fig. 4 is a cross-sectional view taken along line a-a of fig. 1 in accordance with the present invention;
number in the figure: the device comprises a long rod 1, a screw sleeve 11, a grouting through hole 12, a grouting pore 13, a conical connecting ring 14, a rectangular rod 15, a fixing rod 16, an extrusion screwing head 17, a spring 18, a T-shaped rod 2, a tray 21, a hole sealing ring 22, an expansion bolt 23, a threaded rod 24, a threaded cylinder 25 and a conical rod 26.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1: in order to solve the poor tensile problem of difficult regulation of current stock anchor stability, proposed a tunnel country rock in this embodiment is with fixed stock with uplift force adjustable, refer to fig. 1-4, including stock 1, anchor head subassembly, stock 1 is the horizontal stock form of placing of level, the front end cover of stock 1 is equipped with the toper go-between 14 of concentric rigid coupling, the leading flank cover of toper go-between 14 is equipped with the anchor head subassembly, the rear end of stock 1 is equipped with the T shape pole 2 of concentric rigid coupling, the cover is equipped with concentric sliding connection's tray 21 on the T shape pole 2, the rear end of T shape pole 2 is equipped with the threaded rod 24 of coaxial rigid coupling, the rear end of threaded rod 24 is equipped with the toper pole 26 of concentric rigid coupling.
In the utility model, the anchor head assembly comprises an extrusion precession head 17, a fixed rod 16 and a rectangular rod 15, the fixed rod 16 fixedly connected concentrically is arranged on the rear side surface of the extrusion precession head 17, a rectangular clamping groove is sunken on the rear side surface of the fixed rod 16, a spring 18 is arranged in the rectangular clamping groove, the rectangular rod 15 is arranged at the rear end of the spring 18, and the rear end part of the rectangular rod 15 penetrates through the rectangular clamping groove in a sliding manner and is fixedly connected with the front side surface of the conical connection ring 14; the extrusion precession head 17 is firstly inserted into an anchor hole on surrounding rock, and the threaded rod 24, the T-shaped rod 2 and the long rod 1 are driven to be slowly abutted in the anchor hole by rotating the tapered rod 26, so that the extrusion precession head 17 is abutted at the inner end of the anchor hole, the rectangular rod 15 is driven to inwardly abut against the spring 18 along the rectangular clamping groove, and the stability of the extrusion precession head 17 is improved.
In the utility model, a grouting through hole 12 is arranged on the rear side surface of the conical rod 26, and the grouting through hole 12 sequentially penetrates through the conical rod 26, the threaded rod 24, the T-shaped rod 2 and the long rod 1 and penetrates into the conical connecting ring 14; the long rod 1 is sleeved with screw sleeves 11 at uniform intervals, and a plurality of through grouting pores 13 are uniformly arranged on the outer side surface of the long rod 1 between the adjacent screw sleeves 11; through slip casting through-hole 12, carry out the slip casting operation, the slip casting liquid is along slip casting through-hole 12, link up conical rod 26, threaded rod 24, T shape pole 2, stock 1 in proper order and run through to conical connection ring 14 in, in entering into the anchor eye through a plurality of slip casting pores 13, the anchor eye is filled to the slip casting liquid and the cooperation spiral shell 11 is solidified.
In the utility model, a hole sealing ring 22 is sleeved on the T-shaped rod 2 and positioned on the front side surface of the tray 21, the hole sealing ring 22 is fixedly connected with the front side surface of the tray 21, a screw thread cylinder 25 in screw connection is sleeved on the threaded rod 24, and the front end of the screw thread cylinder 25 is tightly propped against the rear side surface of the tray 21; rotating the threaded cylinder 25 to enable the threaded cylinder 25 to be matched with the threaded rod 24 to be abutted forwards, and abutting against the tray 21 to slide forwards along the T-shaped rod 2, so that the hole sealing ring 22 abuts against the outer port of the anchor hole, and the tray 21 is fixed; a plurality of bolt holes are uniformly recessed in the outer edge of the rear side surface of the tray 21, and an expansion bolt 23 in threaded connection is inserted into each bolt hole; so that the expansion bolts 23 are all installed on the inner wall of the surrounding rock outside the anchor hole, and the stability of fixing the top of the tray 21 is further increased.
Example 2: the utility model discloses when specifically using, its operating procedure is as follows:
firstly, inserting an extrusion screw-in head 17 into an anchor hole on surrounding rock, and driving a threaded rod 24, a T-shaped rod 2 and a long rod 1 to slowly abut against the inside of the anchor hole by rotating a conical rod 26, so that the extrusion screw-in head 17 abuts against the inner end of the anchor hole, and a rectangular rod 15 is driven to abut against a spring 18 inwards along a rectangular clamping groove, and the stability of the extrusion screw-in head 17 is improved;
step two, performing grouting operation through the grouting through hole 12, wherein grouting liquid sequentially penetrates through the conical rod 26, the threaded rod 24, the T-shaped rod 2 and the long rod 1 along the grouting through hole 12 and penetrates into the conical connecting ring 14, enters the anchor hole through the plurality of grouting fine holes 13, fills the anchor hole and is solidified by matching with the spiral sleeve 11;
after the long rod 1 is grouted and fixed, the threaded cylinder 25 is rotated to enable the threaded cylinder 25 to be matched with the threaded rod 24 to be supported forward tightly, the supporting tray 21 slides forward along the T-shaped rod 2 tightly, the hole sealing ring 22 is supported tightly against the outer port of the anchor hole, and the supporting tray 21 is fixed;
and step four, inserting expansion bolts 23 in each bolt hole on the tray 21, so that the expansion bolts 23 are all installed on the inner wall of the surrounding rock outside the anchor hole, and the stability of fixing the top of the tray 21 is further improved.
The utility model discloses a cooperation of each subassembly is used, has solved current stock anchor poor stability and difficult tensile problem of adjusting, and overall structure is simple, has increased stock and country rock inner wall resistance to plucking power, has improved the stability when the stock uses.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a tunnel country rock is with fixed stock with withdrawal resistance adjustable, includes stock (1), anchor head subassembly, its characterized in that: stock (1) is the horizontal stock form of placing of level, the front end cover of stock (1) is equipped with toper go-between (14) of concentric rigid coupling, the leading flank cover of toper go-between (14) is equipped with the anchor head subassembly, the rear end of stock (1) is equipped with T shape pole (2) of concentric rigid coupling, the cover is equipped with concentric sliding connection's tray (21) on T shape pole (2), the rear end of T shape pole (2) is equipped with threaded rod (24) of coaxial rigid coupling, the rear end of threaded rod (24) is equipped with toper pole (26) of concentric rigid coupling.
2. The fixing anchor rod with the adjustable pulling resistance for the roadway surrounding rock according to claim 1, is characterized in that: the anchor head assembly comprises an extrusion precession head (17), a fixing rod (16) and a rectangular rod (15), wherein the rear side face of the extrusion precession head (17) is provided with the fixing rod (16) fixedly connected with a concentric center, the rear side face of the fixing rod (16) is sunken to form a rectangular clamping groove, a spring (18) is installed in the rectangular clamping groove, the rear end of the spring (18) is provided with the rectangular rod (15), and the rear end part of the rectangular rod (15) slides to penetrate through the rectangular clamping groove and fixedly connected with the front side face of a conical connecting ring (14).
3. The fixing anchor rod with the adjustable pulling resistance for the roadway surrounding rock according to claim 1, is characterized in that: a grouting through hole (12) is formed in the rear side face of the conical rod (26), and the grouting through hole (12) penetrates through the conical rod (26), the threaded rod (24), the T-shaped rod (2) and the long rod (1) in sequence and penetrates into the conical connecting ring (14).
4. The fixing anchor rod with the adjustable pulling resistance for the roadway surrounding rock according to claim 3, is characterized in that: the long rod (1) is sleeved with screw sleeves (11) with uniform intervals, and a plurality of communicated grouting pores (13) are uniformly arranged on the outer side surface of the long rod (1) between the adjacent screw sleeves (11).
5. The fixing anchor rod with the adjustable pulling resistance for the roadway surrounding rock according to claim 1, is characterized in that: the T-shaped rod (2) is sleeved with a hole sealing ring (22) on the front side face of the tray (21), the hole sealing ring (22) is fixedly connected with the front side face of the tray (21), a threaded cylinder (25) in threaded connection is sleeved on the threaded rod (24), and the front end of the threaded cylinder (25) abuts against the rear side face of the tray (21).
6. The fixing anchor rod with the adjustable pulling resistance for the roadway surrounding rock according to claim 5, is characterized in that: a plurality of bolt holes are uniformly recessed in the outer edge of the rear side face of the tray (21), and expansion bolts (23) which are connected in a spiral mode are inserted into the bolt holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023328290.2U CN214196368U (en) | 2020-12-31 | 2020-12-31 | Tunnel country rock is with fixed stock with withdrawal resistance adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023328290.2U CN214196368U (en) | 2020-12-31 | 2020-12-31 | Tunnel country rock is with fixed stock with withdrawal resistance adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214196368U true CN214196368U (en) | 2021-09-14 |
Family
ID=77633391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023328290.2U Active CN214196368U (en) | 2020-12-31 | 2020-12-31 | Tunnel country rock is with fixed stock with withdrawal resistance adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214196368U (en) |
-
2020
- 2020-12-31 CN CN202023328290.2U patent/CN214196368U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104405423A (en) | Mining grouting anchor rope | |
| CN102518132A (en) | Tensioned self-locking umbrella type anchor and soil slope reinforcement method | |
| CN216586586U (en) | Foundation ditch high stability anchor bolt support structure | |
| CN205558943U (en) | Country rock fault slip casting stock in pit | |
| CN214196368U (en) | Tunnel country rock is with fixed stock with withdrawal resistance adjustable | |
| CN209703489U (en) | A kind of bored concrete pile suitable for solution cavity geology | |
| CN112459818A (en) | Special anti-loosening anchor rod for roadway support | |
| CN208605210U (en) | A kind of novel slurry filling anchor system | |
| CN202187288U (en) | Compound tunnel anchorage | |
| CN112096433A (en) | Main body supporting structure applied to roadway surrounding rock supporting | |
| CN208633857U (en) | A kind of frictional drainage anchor rod of fibrous material | |
| CN204919542U (en) | Cusp high pressure slip casting stock | |
| CN212774354U (en) | Anchor rod for reinforcing tunnel construction | |
| CN212406765U (en) | Main body supporting structure applied to roadway surrounding rock supporting | |
| CN212294643U (en) | Improved ground engineering anchor structure convenient to fix | |
| CN206581959U (en) | A kind of roadway deep support anchor | |
| CN204511327U (en) | The anti-eccentric drill bit structure of tunnel anchoring boring | |
| CN203296043U (en) | High-strength pre-stressed anchor rod | |
| CN218669429U (en) | Anti-floating device for shield tunnel segment | |
| CN215566031U (en) | Tensioning anchor rod | |
| CN215444103U (en) | Anchor rod for civil engineering construction | |
| CN217601423U (en) | Side slope support anchor rod | |
| CN217811137U (en) | A hasp shaped steel tubular column and steel sheet pile combination cofferdam for bridge deep water basis | |
| CN219587588U (en) | Deep well high-stress coal roadway anchor net cable supporting structure | |
| CN221320991U (en) | Slope reinforcement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |