CN217556906U - Single-bundle extrusion knob type recyclable anchor cable - Google Patents
Single-bundle extrusion knob type recyclable anchor cable Download PDFInfo
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- CN217556906U CN217556906U CN202221373991.4U CN202221373991U CN217556906U CN 217556906 U CN217556906 U CN 217556906U CN 202221373991 U CN202221373991 U CN 202221373991U CN 217556906 U CN217556906 U CN 217556906U
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Abstract
The utility model discloses a single-bundle extrusion knob type recoverable anchor cable, which comprises a pressure-bearing backing plate, an anchor plate, a limiting plate, a steel strand and an extrusion sleeve, wherein one end of the pressure-bearing backing plate is provided with an anchor plate groove, and the other end of the pressure-bearing backing plate is provided with a hole cavity communicated with the anchor plate groove; the anchor plate is placed in the anchor plate groove, and the limiting plate is connected with the end face of the pressure-bearing backing plate at the top end of the anchor plate groove; the extrusion sleeve is connected with the end of the steel strand through extrusion, the surface of the extrusion sleeve is provided with threads, and the anchor plate is provided with a threaded hole; the extrusion sleeve passes through the hole cavity and is connected with the threaded hole. The utility model discloses only need clockwise rotation anchor rope to drive the extrusion cover and outwards until back-out the anchor slab, can retrieve the anchor rope from the pipeline, simple structure, anchor rope bear the weight of the dynamic height, dismantle convenient, sealing performance and retrieve usability good.
Description
Technical Field
The utility model relates to a construction technical field specifically is recoverable anchor rope of single bundle extrusion knob formula.
Background
The anchor cable is a part which is anchored into a rock body through a hole of a weak structural surface of the rock body during building construction, connects a sliding body with a stable rock stratum together, has the functions of suspension, extrusion reinforcement and the like, and accordingly changes the stress state of a slope rock body, and is usually applied to engineering parts with deformation or strict requirements on deformation. Most of the traditional anchor cables are permanent anchor cables, and the traditional anchor cables still remain underground after engineering application, so that long-term underground obstacles are formed, secondary development and utilization of fields are seriously influenced, and the environment is polluted.
With the technical progress, recoverable anchor cables appear in the application at present, the recoverable anchor cable technology can be divided into a mechanical lock type, a hot melt type and the like, and particularly, the mechanical lock type is most widely applied.
For example, patent "CN202969378U" discloses a detachable anchor cable adopting an auxiliary cable type pulling type unlocking mode, a steel strand is separately arranged as an auxiliary recovery cable, the auxiliary cable is specially used for recovery, and does not bear working tension, and the anchor device has a complex structure and cannot resist the impact action of variable load; the unlocking anchor plate adopts a spliced anchor plate form, and misoperation is easy to occur in a zero working state in the processes of installation, transportation, construction and the like, so that the inner anchor tool is failed; furthermore, the seal is incomplete and corrosion of the components due to possible anchor head water penetration may lead to failure of the structure.
Patent "CN204510212U" discloses a rotary-type removable anchor rope, is equipped with engagement mechanism in advancing rotary-type anchor rope's the unlocking device through the top, and rotatory steel strand wires rotate during the unblock, drives transmission piece and helical casing and rotates for the clamping piece breaks away from the interior vestibule of ground tackle cone gradually, thereby realizes unblock and steel strand wires owner muscle to retrieve. But the parts are complex, a certain axial space is needed, the anchor cable is disassembled and damaged, and the recycling frequency is low.
The information disclosed in the background section above is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned current defect, the utility model aims to provide a simple structure, anchor rope bear the weight of the high, dismantle convenient, the sealing performance is high and retrieve the recoverable anchor rope of the good single bundle of extrusion knob formula of usability.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a single-bundle extrusion knob type recyclable anchor cable comprises a pressure-bearing backing plate, an anchor plate, a limiting plate, a steel strand and an extrusion sleeve, wherein one end of the pressure-bearing backing plate is provided with an anchor plate groove, and the other end of the pressure-bearing backing plate is provided with a hole cavity communicated with the anchor plate groove; the anchor plate is placed in the anchor plate groove, and the limiting plate is connected with the end face of the pressure-bearing backing plate at the top end of the anchor plate groove; the extrusion sleeve is connected with the end of the steel strand through extrusion, the surface of the extrusion sleeve is provided with threads, and the anchor plate is provided with a threaded hole; the extrusion sleeve passes through the hole cavity and is connected with the threaded hole.
The steel strand is located in the corrugated pipe, the corrugated pipe is inserted into a hole cavity of the pressure-bearing base plate, and a thermal shrinkage sleeve used for sealing and fixing is arranged at the joint of the corrugated pipe and the pressure-bearing base plate.
Specifically, a sealing groove is arranged on the end face of the pressure-bearing base plate connected with the limiting plate, and a sealing ring is arranged in the sealing groove.
Specifically, the outer side face of the limiting plate is welded with a guide cap which is arranged in a conical shape.
Specifically, the end face of the pressure-bearing backing plate connected with the limiting plate is provided with a flange face, and the middle part of the outer wall of the connected pressure-bearing backing plate is provided with an annular boss for bearing pressure.
Specifically, openings for the grouting pipes to pass through are formed in the flange face and the annular boss.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the anchor cable unlocking method adopts a form that the extrusion sleeve is in threaded connection with the anchor plate, the anchor cable is rotated clockwise during unlocking to drive the extrusion sleeve to rotate outwards until the extrusion sleeve is screwed out of the anchor plate, and then the anchor cable can be recovered from a pipeline, the structure is simple and reliable, the disassembly is convenient, the anchor cable with the structural form solves the problem that most of the existing recoverable anchor cables are low in bearing capacity, the extrusion sleeve and the steel strand are always fixed, and the recovery hardly damages the anchor cable compared with the existing recovery mode of destroying or disassembling an anchoring point;
2. the direct rotary recovery mode is adopted, and compared with the prior art, the axial space is shorter, so that the anchoring section can be set to be shorter, and the anchor rod is suitable for different application occasions;
3. the anchor cable is arranged in the corrugated pipe and is not bonded with concrete, a sealing groove between the limiting plate and the pressure bearing pad plate is compressed and sealed by adopting a sealing ring, and the pressure bearing pad plate is hermetically connected with the corrugated pipe by adopting a heat shrinkable sleeve, so that the whole anchor cable is in a sealing structure form, the problem of structural failure caused by rusting of an internal unlocking part due to water seepage at the end of the anchor cable is solved, and the corrosion resistance of the steel strand is greatly enhanced due to the protection of the corrugated pipe;
4. the limiting plate is arranged at the end of the anchor cable, the limiting plate limits the movement of the anchor plate in the pressure-bearing base plate, the limiting function is achieved when the extrusion sleeve is screwed into the anchor plate, and the limiting plate is used for preventing the extrusion sleeve from being installed incorrectly and being screwed into the anchor plate to exceed the structure failure caused by the anchor plate.
Description of the figures and reference numerals
Drawings
Fig. 1 is a schematic structural view of the single-bundle extrusion knob type recoverable anchor cable of the present invention.
Fig. 2 is a top view of a pressure bearing pad.
Figure 3 is a top view of the anchor plate.
In the figure, 1-pressure bearing backing plate, 101-anchor plate groove, 102-hole cavity, 103-sealing groove, 104-flange surface, 105-annular boss, 106-opening, 2-anchor plate, 201-threaded hole, 3-limiting plate, 4-steel strand, 5-extrusion sleeve, 6-corrugated pipe, 7-thermal shrinkage sleeve, 8-sealing ring, 9-guiding cap and 10-grouting pipe.
Detailed Description
In order to explain the technical content, the achieved objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings. In the description of the present embodiment, it is to be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present embodiment and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation and thus should not be construed as limiting the present invention.
The present embodiment provides a single-bundle extrusion knob type recoverable anchor cable, including: the device comprises a pressure-bearing base plate 1, an anchor plate 2, a limiting plate 3, a steel strand 4 and an extrusion sleeve 5;
referring to fig. 1-2, the pressure-bearing backing plate 1 is provided with a cylindrical structure, and an inner cylindrical surface of the pressure-bearing backing plate is provided with an inner circular ring as a bearing surface, so that one end of the cylinder forms an anchor plate groove 101, and the other end forms a hole cavity 102 communicated with the anchor plate groove 101; the end surface of the pressure bearing backing plate 1 at the top end of the anchor plate groove 101 is provided with a flange surface 104 structure, the flange surface 104 is used for being connected with the anchor plate 2, and the flange surface 104 is also provided with a through hole;
referring to fig. 1 and 3, the anchor plate 2 is a truncated cone-shaped structure, a threaded hole 201 is formed in the anchor plate 2, and the anchor plate 2 is placed in the anchor plate groove 101, wherein the threaded hole 201 is formed to avoid an inner ring of an inner cylinder supporting surface of the pressure-bearing backing plate 1 and is communicated with the hole cavity 102;
the limiting plate 3 is provided with an opening matched with the through hole of the flange surface 104 and is connected and fixed with the flange surface 104 through a bolt, a spring washer and a nut; by arranging the limiting plate 3, the limiting plate 3 limits the movement of the anchor plate 2 in the pressure-bearing backing plate 1, and the function of limiting when the extrusion sleeve 5 is screwed into the anchor plate 2 is also achieved. The limiting plate 3 also prevents the extrusion sleeve 5 from being screwed in by mistake and exceeding the anchor plate 2 to cause structural failure;
the extrusion sleeve 5 is connected with the end of the steel strand 4 by extrusion, and the principle of the extrusion is as follows: after the oil pump of the extruder supplies oil pressure to the oil cylinder, the piston is driven to press the extrusion sleeve, the extrusion spring and the prestressed steel strand into the extrusion die together, the extrusion sleeve is firmly compressed on the prestressed steel strand because the aperture of the extrusion die is smaller than the external diameter of the extrusion sleeve, and the sharp knife at the inner side of the extrusion spring clamps the long blade at the outer side of the extrusion die and is embedded into the extrusion sleeve, so that the extrusion type anchorage device with very reliable anchoring performance is formed;
the surface of the extrusion sleeve 5 is provided with screw threads, and the extrusion sleeve 5 passes through the hole cavity 102 to be connected with the threaded hole 201.
The anchor cable recovery process of the embodiment is as follows: when the anchor cable needs to be dismantled, the working clamping piece at the free end of the anchor cable is taken out to remove the force, the anchor cable is rotated clockwise to drive the extrusion sleeve 5 to be outward until the anchor plate 2 is screwed out, and then the anchor cable can be recovered from the pipeline.
In conclusion, the anchor cable unlocking method in the embodiment adopts the form that the extrusion sleeve 5 is in threaded connection with the anchor plate 2, the anchor cable is rotated clockwise during unlocking to drive the extrusion sleeve 5 to be outwards rotated out of the anchor plate 2, the anchor cable can be recovered from a pipeline, the structure is simple and reliable, the disassembly is convenient, the anchor cable in the structural form solves the problem that the bearing capacity of most of the existing recoverable anchor cables is low, the extrusion sleeve 5 and the steel strand 4 are fixed all the time, and the recovery hardly damages the anchor cable compared with the existing mode of destroying or disassembling an anchoring point for recovery; the mode of direct rotation recovery is adopted, and the axial space is shorter than that of the prior art, so that the anchoring section can be set to be shorter, the anchor rod is suitable for different application occasions, and the purpose of the technical scheme is achieved.
As a further preferable technical scheme of this embodiment, the pressure-bearing backing plate further includes a corrugated pipe 6, the steel strand 4 is located inside the corrugated pipe 6, the corrugated pipe 6 is inserted into the hole cavity 102 of the pressure-bearing backing plate 1, and a heat-shrinkable sleeve 7 for sealing and fixing is arranged at a joint of the corrugated pipe 6 and the pressure-bearing backing plate 1. The anchor cable is arranged in the corrugated pipe 6 and is not bonded with concrete, and the pressure-bearing base plate 1 and the corrugated pipe 6 are in sealing connection by adopting the thermal shrinkage sleeve 7, so that the whole anchor cable is in a sealing structure form, the problem of structural failure caused by rusting of an internal unlocking part due to water seepage at the end of the anchor cable is solved, and the corrosion resistance of the steel strand 4 is greatly enhanced due to the protection of the corrugated pipe 6; the principle of thermal shrinkage is referred to the technical solution disclosed in the prior art, such as "JP59140657", and is not described herein again.
In order to further improve the sealing performance of the anchor head of the anchor cable, a sealing groove 103 is also arranged on a flange surface 104 positioned on the inner periphery of the bolt hole; and a sealing ring 8 is arranged in the sealing groove 103, and the limiting plate 3 and the pressure-bearing base plate 1 are compressed and sealed.
As the preferred technical scheme of this embodiment, the welding has the direction cap 9 on the limiting plate 3 lateral surface, and direction cap 9 can set up to be the toper and is convenient for put into the anchor hole that bores.
As the preferred technical scheme of this embodiment, the middle part of the outer wall of the pressure-bearing backing plate 1 is provided with the annular boss 105 for bearing pressure, and the pressure-bearing backing plate 1 adopts the side face to assist in bearing pressure, so that the structure is compact, and the pressure-bearing capacity of the end head of the anchor cable is increased.
In this embodiment, the flange surface 104 and the annular boss 105 are both provided with an opening 106 for the grouting pipe 10 to pass through, so as to facilitate grouting in the hole passage of the grouting pipe 10.
The installation steps of the single-bundle extrusion knob type recoverable anchor cable of the embodiment are as follows:
s1, placing an anchor plate 2 into an anchor plate groove 101 of a pressure-bearing base plate 1, and placing a sealing ring 8 to a sealing groove 103;
s2, connecting the limiting plate 3 with the pressure-bearing base plate 1 through a bolt, and adding a spring washer;
s3, welding the guide cap 9 to the limiting plate 3 and enabling the guide cap to be coaxial with the limiting plate 3;
s4, extruding the extrusion sleeve 5 to the end of the steel strand 4 by using an extrusion jack, and then externally threading the extrusion sleeve 4;
s5, sequentially screwing the steel strand end extrusion sleeves into the anchor plate according to hole positions to the top end position of the limiting plate;
s6, penetrating the steel strand 4 into a corrugated pipe 6, sleeving the corrugated pipe 6 into the pressure-bearing base plate 1, and connecting the pressure-bearing base plate 1 with the corrugated pipe 6 through a thermal shrinkage sleeve 7;
s7, the grouting pipe 10 penetrates through the opening 104 of the pressure bearing base plate 1, and can be bundled and fixed by steel wires or a binding tape, and the installation is finished.
The construction method of the single-bundle extrusion knob type recyclable anchor cable in the embodiment comprises the following steps: after the anchor cable is assembled before construction, the anchor cable is placed into the drilled anchor hole with the guide cap 9 facing downwards. And after the anchor cable is placed to the bottom end, grouting is carried out on the outer hole channel of the corrugated pipe 6. And tensioning after the concrete in the hole is solidified, wherein the tensioning process is consistent with that of a common anchor cable.
Furthermore, in some embodiments, the anchor plate 2 may be provided with multiple hole sites or with a single hole site, selected for specific application requirements.
In some non-exhaustive embodiments, the extrusion sheath 5 may be integrally threaded after the extrusion is fixed, or may be segmented with the extrusion region, i.e., the extrusion region and the extrusion region are separately disposed.
Although the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. A single strand extruded knob type retractable anchor cable comprising: pressure-bearing backing plate (1), anchor slab (2), limiting plate (3), steel strand wires (4), extrusion cover (5), its characterized in that: one end of the pressure-bearing backing plate (1) is provided with an anchor plate groove (101), and the other end of the pressure-bearing backing plate (1) is provided with a hole cavity (102) communicated with the anchor plate groove (101); the anchor plate (2) is placed in the anchor plate groove (101), and the limiting plate (3) is connected with the end face of the pressure-bearing backing plate (1) at the top end of the anchor plate groove (101); the extrusion sleeve (5) is connected with the end of the steel strand (4) in an extrusion manner, the surface of the extrusion sleeve (5) is provided with threads, and the anchor plate (2) is provided with a threaded hole (201); the extrusion sleeve (5) penetrates through the hole cavity (102) to be connected with the threaded hole (201).
2. The single-strand extruded knob type recoverable anchor cable according to claim 1, wherein: the corrugated pipe is characterized by further comprising a corrugated pipe (6), the steel strand (4) is located inside the corrugated pipe (6), the corrugated pipe (6) is inserted into the hole cavity (102) of the pressure-bearing base plate (1), and a heat-shrinkable sleeve (7) used for sealing and fixing is arranged at the joint of the corrugated pipe (6) and the pressure-bearing base plate (1).
3. The single-strand extruded knob type retractable anchor cable as claimed in claim 1, wherein: and the end face of the pressure-bearing base plate (1) connected with the limiting plate (3) is provided with a sealing groove (103), and a sealing ring (8) is arranged in the sealing groove (103).
4. The single-strand extruded knob type retractable anchor cable as claimed in claim 1, wherein: the outer side surface of the limiting plate (3) is welded with a guide cap (9) which is arranged in a conical shape.
5. The single-strand extruded knob type retractable anchor cable as claimed in claim 1, wherein: the end face of the pressure-bearing backing plate (1) connected with the limiting plate (3) is provided with a flange face (104), and the middle part of the outer wall of the connected pressure-bearing backing plate (1) is provided with an annular boss (105) for bearing pressure.
6. The single-strand extruded knob type retractable anchor cable as claimed in claim 5, wherein: openings (106) for the grouting pipes (10) to pass through are formed in the flange surface (104) and the annular boss (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221373991.4U CN217556906U (en) | 2022-06-02 | 2022-06-02 | Single-bundle extrusion knob type recyclable anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221373991.4U CN217556906U (en) | 2022-06-02 | 2022-06-02 | Single-bundle extrusion knob type recyclable anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217556906U true CN217556906U (en) | 2022-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221373991.4U Active CN217556906U (en) | 2022-06-02 | 2022-06-02 | Single-bundle extrusion knob type recyclable anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217556906U (en) |
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2022
- 2022-06-02 CN CN202221373991.4U patent/CN217556906U/en active Active
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