A recyclable pressure dissipating anchor

Abstract

The utility model relates to a recoverable pressure dispersion type anchor cable, including bearing plate, top bracing frame and anchor cable subassembly, bearing plate is fixed on top bracing frame, and is equipped with the grouting pipe in bearing plate middle part, with the grouting pipe as center, has installed the hole on bearing plate along the circumference, anchor cable subassembly is correspondingly arranged in installed hole and sets up outside the steel strand, and the control board is located bearing plate far from one side of top bracing frame, and the control board is opened the center hole, and the grouting pipe is worn and is equipped in the middle part of control board, and the steel strand is correspondingly sleeved in the installed hole of bearing plate, and passes control board outward, and the control board is equipped with the recovery cable, keeps the locking state of locking sleeve to the steel strand under the action of the limiting component, when pulling the recovery cable outward, makes control board move outward to loosen the locking of the steel strand, can recover the steel strand. The utility model discloses through the clamping and loosening mechanism of anchor cable subassembly, and the steel strand can be recovered after the side slope support, and the repeated use, compact structure, simple operation, and the reliability is strong.

Description

Technical Field

[0001] This utility model relates to the field of anchor cable technology, specifically to a recyclable pressure-dispersing anchor cable. Background Technology

[0002] In the field of geotechnical engineering, prestressed anchor cables, as a key technology for providing structural pull-out resistance and ensuring the stability of soil and rock masses, have been widely used in engineering scenarios such as slope treatment and reinforcement, deep foundation pit protection, and coal mine shaft reinforcement. Early projects used prestressed anchor cables that were non-recyclable. These anchor cables, with steel as the core load-bearing component, needed to be permanently left inside the soil and rock mass after construction. When a project requires a large number of anchor cables, not recycling them increases the project cost and wastes steel resources. Furthermore, the permanently left steel is susceptible to corrosion due to the long-term effects of groundwater and corrosive media within the soil and rock mass. This not only affects the long-term stability of the soil and rock mass due to the decrease in steel strength but may also cause environmental pollution problems by seeping into the surrounding soil or groundwater system through corrosion products.

[0003] To address the resource waste and pollution associated with non-recyclable anchor cables, the industry has gradually developed recyclable anchor cable technology, which has been widely applied in projects such as slope stabilization. However, existing recyclable anchor cable technologies still have significant shortcomings, failing to meet the demands of complex geotechnical engineering projects for ease of construction and reliable recycling. For example, existing mechanical recyclable anchor cables have complex designs and unclear force transmission paths, making them prone to stress concentration and deformation during pull-out stress, thus preventing recycling. Additionally, some thermoplastic anchor cables achieve recycling by melting the anchoring structure with a hot melt agent, but this requires extremely high construction precision and environmental adaptability, making it difficult to guarantee a successful recycling rate.

[0004] Therefore, it is necessary to study a recyclable pressure-dispersing anchor cable. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a recyclable pressure-dispersing anchor cable, which effectively solves the problems mentioned above in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a recyclable pressure-dispersing anchor cable, comprising a bearing plate, a top support frame, and an anchor cable assembly. The bearing plate is fixed on the top support frame, and a grouting pipe is provided in the middle of the bearing plate. A mounting hole is formed around the grouting pipe along the circumference of the bearing plate. The anchor cable assembly is correspondingly disposed in the mounting hole. The anchor cable assembly includes a steel strand, a control plate, a locking sleeve, a drive sleeve, and a limiting component. The control plate is located on the side of the bearing plate away from the top support frame, and a central hole is formed on the control plate. The grouting pipe passes through the middle of the control plate. The steel strand is fitted into the mounting holes of the bearing plate and passes outward through the control plate. The drive sleeve and locking sleeve are symmetrically fitted around the steel strand. A clamping sleeve is fitted around the drive sleeve and locking sleeve, and the clamping sleeve is fixed to the drive sleeve. The clamping sleeve and locking sleeve can slide relative to each other. The end of the drive sleeve away from the locking sleeve is threaded with a limit component to maintain the locking state of the locking sleeve on the steel strand. A recovery cable is also fixed on the side of the control plate away from the bearing plate. When the recovery cable is pulled outward, the control plate moves outward to loosen the locking of the steel strand, and the steel strand can be recovered.

[0007] Furthermore, a protective sleeve is fixedly fitted inside the mounting hole, the clamping sleeve is slidably fitted inside the protective sleeve, the protective sleeve is coaxially fixed inside the mounting hole, and a limit seat is fixed at the end of the protective sleeve away from the control plate.

[0008] Furthermore, the end of the drive sleeve away from the locking sleeve is fixedly connected to a push section, the side of the control plate near the drive sleeve is fixedly connected to an extension sleeve, the side of the push section near the drive sleeve is fixedly connected to a top platform, the extension sleeve is fitted onto the push section and is fixedly connected to the top platform, the end of the protective sleeve near the control plate is fitted onto the extension sleeve, and the limiting component is disposed between the protective sleeve and the extension sleeve.

[0009] Furthermore, the limiting component includes a limiting pin and a slot. The limiting pin is movably connected to the inner side of the protective sleeve. The end of the limiting pin has an arc-shaped structure. A top spring is fitted over the limiting pin. A slot is opened on the extension sleeve. Under the action of the top spring, the limiting pin can be engaged in the slot of the extension sleeve to lock the extension sleeve.

[0010] Furthermore, the outer surfaces of the drive sleeve and the locking sleeve have a tapered, tapered structure, and a compression spring is fixed between them. The compression sleeve is fitted on the outside of the drive sleeve and the locking sleeve, and the inner wall of the compression sleeve is adapted to the tapered structure. When the drive sleeve drives the compression sleeve to move toward the locking sleeve, the compression spring is compressed, and at the same time, the compression sleeve presses against the outside of the locking sleeve, so that the locking sleeve locks and fixes the steel strand.

[0011] Furthermore, the top support frame includes a pad and a limiting rod, the limiting rod is evenly fixed on the pad, and the bearing plate is fixed to the end of the limiting rod; the grouting pipe extends between the pad and the bearing plate.

[0012] The beneficial effects of the above technical solution are: the recyclable pressure-dispersing anchor cable provided by this utility model, through the setting of recyclable anchor cable components, pressure-dispersing structure and limiting components, realizes efficient recycling and reliable support of slope anchor cables.

[0013] In this invention, the drive sleeve and locking sleeve adopt a tapered tapered structure, which, together with the compression spring and compression sleeve, allows the locking sleeve to deform to lock or release the steel strand; and the recovery cable is fixed to the control plate. Pulling the recovery cable will move the control plate, release the locking component, and drive the locking sleeve to loosen from the steel strand, thus realizing recovery.

[0014] Furthermore, in this invention, multiple anchor cable assemblies are set on the bearing plate, decomposing the total tension of the anchor cables into multiple smaller components. These components are then transmitted to the grout at different depths via the bearing plate and pad distributed along the axial direction of the anchorage section, thereby forming multiple discrete and uniform bearing areas. This configuration in this embodiment can transform the traditional concentrated point load into a continuously distributed surface load, effectively avoiding the risk of crushing due to excessive local stress in the grout. This results in a more uniform and gentle stress distribution throughout the anchorage section, greatly improving the integrity, bearing reliability, and safety reserve of the anchor body, ultimately ensuring the long-term and stable operation of the slope support structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of the present utility model; Figure 2 This is a schematic diagram of the implementation structure of the support plate; Figure 3 This is a cross-sectional view of the anchor cable assembly. Figure 4 for Figure 3 A cross-sectional view of the working structure at point A in the middle; Figure 5 for Figure 3 A cross-sectional view of another working state at point A.

[0016] Reference numerals: 1-pad, 2-bearing plate, 3-anchor cable assembly, 4-control plate, 5-grouting pipe, 6-steel strand, 7-limiting rod, 8-recovery cable, 9-extension sleeve, 10-protective sleeve, 11-compression sleeve, 12-limiting seat, 13-locking sleeve, 14-drive sleeve, 15-push section, 16-compression spring, 17-top platform, 18-limiting pin, 19-slot. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1: This example aims to provide a recyclable pressure-dispersing anchor cable, mainly used for the recycling of anchor cables used in slope protection, such as... Figure 1 and 2 As shown, the pressure-dispersing anchor cable provided in this embodiment includes a bearing plate 2, a top support frame, and an anchor cable assembly 3. The top support frame includes a pad plate 1 and a limiting rod 7. Multiple grout leakage holes are evenly opened on the pad plate 1. The limiting rod 7 is evenly fixed on the pad plate 1. The bearing plate 2 is welded and fixed to the end of the limiting rod 7. A grouting pipe 5 is provided in the middle of the bearing plate 2. The grouting pipe 5 extends between the pad plate 1 and the bearing plate 2, and grout is injected into the anchor hole through the grouting pipe 5.

[0018] like Figure 2 and 3 As shown, with the grouting pipe 5 as the center, multiple mounting holes are opened along the circumference of the bearing plate 2. An anchor cable assembly 3 is installed in each mounting hole. The anchor cable assembly 3 clamps and fixes or releases the steel strand 6 to realize the use and recycling of the steel strand 6. In this embodiment, the anchor cable assembly 3 includes an adjustment plate 4, a locking sleeve 13, a drive sleeve 14, and a limiting component, etc. The adjustment plate 4 is located on the side of the bearing plate 2 away from the top support frame. The adjustment plate 4 has a central hole. The grouting pipe 5 passes through the middle of the adjustment plate 4. The steel strand 6 is correspondingly fitted into the mounting hole of the bearing plate 2 and passes outward through the adjustment plate 4.

[0019] Each mounting hole is coaxially fixed with a protective sleeve 10. The steel strand 6 is located inside the protective sleeve 10. The drive sleeve 14 and the locking sleeve 13 are symmetrically fitted outside the steel strand 6. A pressure sleeve 11 is fitted outside the drive sleeve 14 and the locking sleeve 13, and the pressure sleeve 11 is fixed to the drive sleeve 14. The pressure sleeve 11 and the locking sleeve 13 can slide relative to each other. Specifically, in this embodiment, the outer surfaces of the drive sleeve 14 and the locking sleeve 13 have a tapered and tapered structure, and a pressure spring 16 is fixed between them. The pressure sleeve 11 is fitted outside the drive sleeve 14 and the locking sleeve 13, and the inner wall of the pressure sleeve 11 is adapted to the tapered structure of the locking sleeve 13. The pressure sleeve 11 and the drive sleeve 14 can also be integrally formed in actual production, and the locking sleeve 13 can undergo a certain degree of deformation.

[0020] like Figure 3-5As shown, the clamping sleeve 11 is slidably fitted inside the protective sleeve 10, and the end of the protective sleeve 10 away from the control plate 4 is fixed with the limit seat 12. The side of the locking sleeve 13 away from the drive sleeve 14 is in contact with the inner wall of the limit seat 12. There is a sliding allowance between the side of the clamping sleeve 11 close to the limit seat 12 and the inner wall of the limit seat 12. Thus, when the control drive sleeve 14 moves toward the limit seat 12, the drive sleeve 14 drives the clamping sleeve 11 to move, and the clamping spring 16 is compressed. Based on the conical structure between the clamping sleeve 11 and the locking sleeve 13, the clamping sleeve 11 is pressed against the outside of the locking sleeve 13, thereby causing the locking sleeve 13 to undergo a certain deformation, and finally the locking sleeve 13 locks and fixes the steel strand 6.

[0021] like Figure 4 As shown, a push section 15 is fixedly connected to the end of the drive sleeve 14 away from the locking sleeve 13. An annular top platform 17 is fixed between the push section 15 and the drive sleeve 14. An extension sleeve 9 is fixed on the side of the control plate 4 near the drive sleeve 14. The extension sleeve 9 is fitted outside the push section 15 and is fixed in contact with the top platform 17. Thus, when the control plate 4 moves back and forth along the steel strand 6, it can drive the drive sleeve 14 to move. In turn, the locking sleeve 13 is controlled to clamp and lock or release the steel strand 6.

[0022] Furthermore, the end of the protective sleeve 10 closest to the control plate 4 is fitted over the extension sleeve 9, and a limiting component is positioned between the protective sleeve 10 and the extension sleeve 9, such as... Figure 4 and 5 As shown, in this embodiment, the limiting component includes a limiting pin 18 and a slot 19. The limiting pin 18 is movably connected to the inner side of the protective sleeve 10, and a limiting stop is fixed on the limiting pin 18. The end of the limiting pin 18 away from the protective sleeve 10 has an arc-shaped structure. A top spring is fitted on the outer side of the limiting pin 18. The slot 19 is opened on the extension sleeve 9. The opening of the slot 19 has rounded corners. When the limiting pin 18 does not correspond to the slot 19, the arc-shaped end of the bottom of the limiting pin 18 contacts the side wall of the extension sleeve 9, and the top spring is compressed. When the pressing sleeve 11 is moved to contact the inner wall of the limiting seat 12 by the extension sleeve 9, the limiting pin 18 pops out into the slot 19 under the action of the top spring, thereby limiting the position of the limiting pin 18 to maintain the locking state of the locking sleeve 13 on the steel strand 6.

[0023] like Figure 1As shown, a recovery cable 8 is fixed on the side of the control plate 4 away from the bearing plate 2. After the grouting into the anchor hole is completed, the grouting pipe 5 is withdrawn, and then the recovery cable 8 is pulled to move the control plate 4 away from the bearing plate 2, so that the limit pin 18 is disengaged from the slot 19, and at the same time the clamping sleeve 11 moves away from the limit seat 12, thereby clamping the locking sleeve 13. Then the locking sleeve 13 releases the clamping force on the steel strand 6, so that the steel strand 6 can slide freely in the mounting hole of the bearing plate 2. Then, the steel strand 6 is pulled out of the anchor hole by the external force of the anchor hole, thereby realizing the recovery of the steel strand 6.

[0024] It should be noted that in this embodiment, the control plate 4 is provided with multiple sets of extension sleeves 9, which correspond to multiple sets of limiting components. Thus, the force of the top spring on the limiting pin 18 is greater than the elastic force of the compression spring 16. When the recovery cable 8 is pulled outward, the external pulling force plus the elastic force of the compression spring 16 can disengage the limiting pin 18 from the slot 19 of the extension sleeve 9, ensuring that the steel strand 6 can be disengaged from the control plate 4 and the bearing plate 2.

[0025] Working principle description: In practical application, the recyclable pressure-dispersing anchor cable provided in this embodiment is used to lock the steel strand 6 onto the bearing plate 2 via the anchor cable assembly 3 before the anchor cable is placed into the anchor hole. Specifically, the control plate 4 controls the movement of the drive sleeve 14 through the extension sleeve 9, compressing the clamping spring 16, causing the clamping sleeve 11 to press against the locking sleeve 13. The locking sleeve 13 deforms and clamps the steel strand 6, while the limiting pin 18 springs into the slot 19 and locks in place. After the cable is placed into the anchor hole, grout is injected into the hole through the grouting pipe 5. After grouting is completed, the recovery cable 8 is pulled during recovery, the control plate 4 moves in the opposite direction, the limiting pin 18 disengages from the slot 19, the clamping sleeve 11 resets under the action of the clamping spring 16, and the locking sleeve 13 releases the steel strand 6. The steel strand 6 can then be pulled out of the anchor hole for recovery, while the rest of the structure remains in the anchor hole.

[0026] This invention utilizes the clamping / releasing mechanism of the anchor cable assembly to allow the steel strand to be completely recovered and reused after slope support, reducing material waste and engineering costs. The limiting assembly uses the automatic locking function of the top spring and the slot to ensure that the steel strand is firmly locked during support. During recovery, simply pulling the recovery cable triggers the interlocking release, eliminating the need for complex equipment, making operation simple and with a low error rate. The structure is compact, easy to operate, and highly reliable, effectively improving construction efficiency and enhancing anchoring quality.

[0027] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A recyclable pressure-dispersing anchor cable, characterized in that: The system includes a bearing plate (2), a top support frame, and an anchor cable assembly (3). The bearing plate (2) is fixed on the top support frame, and a grouting pipe (5) is provided in the middle of the bearing plate (2). With the grouting pipe (5) as the center, there are mounting holes along the circumference of the bearing plate (2). The anchor cable assembly (3) is correspondingly set in the mounting holes. The anchor cable assembly (3) includes a steel strand (6), an adjusting plate (4), a locking sleeve (13), a driving sleeve (14), and a limiting component. The adjusting plate (4) is located on the side of the bearing plate (2) away from the top support frame. The adjusting plate (4) has a central hole. The grouting pipe (5) passes through the middle of the adjusting plate (4). The steel strand (6) is correspondingly fitted into the mounting holes of the bearing plate (2) and passes outward. Control plate (4); the drive sleeve (14) and the locking sleeve (13) are symmetrically fitted on the outside of the steel strand (6). The drive sleeve (14) and the locking sleeve (13) are fitted with a pressure sleeve (11), and the pressure sleeve (11) is fixed to the drive sleeve (14). The pressure sleeve (11) and the locking sleeve (13) can slide relative to each other. The end of the drive sleeve (14) away from the locking sleeve (13) is threaded with a limit component to maintain the locking state of the locking sleeve on the steel strand. The control plate (4) is also fixed with a recovery cable (8) on the side away from the bearing plate (2). When the recovery cable (8) is pulled outward, the control plate (4) moves outward to loosen the locking of the steel strand (6), and the steel strand (6) can be recovered.

2. The recyclable pressure-dispersing anchor cable according to claim 1, characterized in that: A protective sleeve (10) is fixedly fitted inside the mounting hole. The clamping sleeve (11) is slidably fitted inside the protective sleeve (10). The protective sleeve (10) is coaxially fixed inside the mounting hole, and a limit seat (12) is fixed at one end of the protective sleeve (10) away from the control plate (4).

3. The recyclable pressure-dispersing anchor cable according to claim 2, characterized in that: The drive sleeve (14) is connected to and fixed with a push section (15) at one end away from the locking sleeve (13). An extension sleeve (9) is fixed on the side of the control plate (4) near the drive sleeve (14). A top platform (17) is fixed on the side of the push section near the drive sleeve (14). The extension sleeve is fitted outside the push section and is fixed in contact with the top platform (17). The protective sleeve (10) is fitted outside the extension sleeve at one end near the control plate. The limiting component is set between the protective sleeve and the extension sleeve.

4. The recyclable pressure-dispersing anchor cable according to claim 3, characterized in that: The limiting component includes a limiting pin (18) and a slot (19). The limiting pin (18) is movably connected to the inside of the protective sleeve. The end of the limiting pin (18) has an arc-shaped structure. A top spring is fitted on the outer side of the limiting pin. The slot (19) is opened on the extension sleeve. Under the action of the top spring, the limiting pin can be locked in the slot (19) of the extension sleeve to lock the extension sleeve (9).

5. The recyclable pressure-dispersing anchor cable according to claim 4, characterized in that: The outer surfaces of the drive sleeve (14) and the locking sleeve (13) are tapered and tapered, and a compression spring (16) is fixed between them. The compression sleeve (11) is fitted on the outside of the drive sleeve (14) and the locking sleeve (13), and the inner wall of the compression sleeve (11) is adapted to the tapered structure. When the drive sleeve (14) drives the compression sleeve (11) to move toward the locking sleeve (13), the compression spring (16) is compressed, and the compression sleeve (11) is pressed against the outside of the locking sleeve (13) so that the locking sleeve (13) locks and fixes the steel strand (6).

6. The recyclable pressure-dispersing anchor cable according to claim 1, characterized in that: The top support frame includes a pad (1) and a limiting rod (7). The limiting rod (7) is evenly fixed on the pad (1), and the bearing plate (2) is fixed at the end of the limiting rod (7). The grouting pipe (5) extends between the pad (1) and the bearing plate (2).

Images