Slope anchor cable tensioning device and slope repairing process

Abstract

This invention relates to the field of slope restoration technology, providing a slope anchor cable tensioning device and slope restoration process. The free end of the anchor cable passes through a pad and a second anchor plate, and is locked in the first through hole by the third clamping plate of the pad. The free end of the anchor cable in the second through hole is locked by the second clamping plate of the second anchor plate. A hydraulic jack drives the second anchor plate to pull the free end of the anchor cable. Due to the pulling of the anchor cable, both the second and third clamping plates may loosen and fail to clamp the anchor cable. Simultaneously, the transmission component, under the action of the hydraulic jack, reciprocates in multiple stages to intermittently press down the second and third clamping plates, ensuring that the anchor cable is always clamped, preventing loosening. The entire device operates fully automatically, eliminating the need for manual pressing of the clamping plates individually, making operation more convenient.

Description

Technical Field

[0001] This invention belongs to the field of slope restoration technology, and particularly relates to a slope anchor cable tensioning device and slope restoration process. Background Technology

[0002] Anchor cables are a common method of slope protection, applying prestress to the slope through anchor cables. Applying prestress through anchor cables can significantly improve the stress state of the surface soil and rock mass, increasing its strength. Furthermore, it can integrate the surface soil and rock mass with the internal soil and rock mass, enhancing the overall integrity of the slope and preventing landslides. Ensuring sufficient prestress is crucial to achieving these objectives, and anchor cable tensioning equipment is typically used to tension the anchor cables and maintain their prestress.

[0003] Patent No.: CN201711439527.4 An assembled existing anchor cable tensioning device and an existing anchor cable secondary tensioning device are disclosed. The device includes a force-bearing connector that can be fixedly fitted onto an existing anchor cable, multiple force-bearing anchor cables that are fixedly passed through the force-bearing connector, a cable tie that fixes the middle portions of all the force-bearing anchor cables together, the axes of the force-bearing connector and the cable tie coinciding with the central axis of the arrangement of all the force-bearing anchor cables, jacks that can move the force-bearing anchor cables away from the force-bearing connector are arranged around the force-bearing anchor cables, and a force-bearing anchor plate that can anchor the force-bearing anchor cables. This assembled existing anchor cable tensioning device can achieve secondary tensioning of existing anchor cables when the tail of the existing anchor cable is relatively short, and the tensioning construction does not damage the original structure of the existing anchor cable.

[0004] In the above-mentioned types of patents, clamps are used to lock the anchor cable and the anchor plate during operation. However, since the anchor cable moves outward in the same direction as the clamp during the pulling process, the pulling of the anchor cable will bring out the clamp that locks the position of the anchor cable, resulting in the failure of the anchor cable locking. Afterwards, each clamp needs to be manually repositioned. The force of manual pressing varies each time, resulting in different clamping effects of the clamp. In addition, there are many clamps, and manual pressing is not very convenient. Summary of the Invention

[0005] This invention provides a slope anchor cable tensioning device and a slope repair process, aiming to solve the problems mentioned in the background art.

[0006] This invention is implemented as follows: a slope anchor cable tensioning device includes a through-type hydraulic jack. A first anchor plate is mounted on the upper end of the hydraulic jack. The first anchor plate is connected to a second anchor plate via multiple steel cables. The second anchor plate clamps the free end of the anchor cable. A pad is provided at the portion of the anchor cable close to the slope surface. The free end of the anchor cable passes through the pad and is locked by multiple third clamping plates. The hydraulic jack, by driving the first and second anchor plates to rise and fall, pulls the automatic end of the anchor cable outward. A transmission component is also provided inside the hydraulic jack. Under the action of the rising hydraulic jack, the transmission component reciprocates and presses down the third clamping plates, thereby ensuring that the third clamping plates always clamp and lock the free end of the anchor cable.

[0007] Preferably, the hydraulic jack includes a sleeve-type cylinder body, the inside of which is provided with a piston support, and the inside of the piston support is provided with a cavity for the second anchor plate and the transmission assembly to move. The bottom of the cylinder body is provided with a support foot, which is inserted into the pad plate.

[0008] Preferably, both the first anchor plate and the second anchor plate have a plurality of conical holes circumferentially spaced on their surfaces, and each conical hole contains a steel cable. The upper end of the steel cable is inserted into the conical hole of the first anchor plate through a set of a plurality of first clips, and the lower end of the steel cable is inserted into the conical hole of the second anchor plate through another set of a plurality of first clips. The conical holes of the first anchor plate and the second anchor plate have opposite tapers, and the first anchor plate is located at the upper end of the piston support.

[0009] Preferably, both the second anchor plate and the pad have a conical through hole at their center, and the through holes are oriented in the same direction and their diameters gradually decrease from top to bottom. The free end of the anchor cable passes through the first through hole of the pad and the second through hole of the second anchor plate in sequence. The anchor cable is locked in the first through hole by a plurality of third clamping pieces, and the anchor cable is locked in the second through hole by a plurality of second clamping pieces. The second through hole has a limiting groove inside, and the back of the second clamping piece has a limiting block that slides along the limiting groove.

[0010] Preferably, the transmission assembly includes an extrusion frame and a power storage component mounted on the second anchor plate. The extrusion frame slides along a vertical groove opened in the second anchor plate. The power storage component is used to drive the extrusion frame to descend. A hanging rod is provided on the upper side of the extrusion frame. The hanging rod is clamped in multiple stages by a multi-stage spring clip. The upper end of the multi-stage spring clip is mounted on the bottom surface of the piston support through a telescopic sleeve. A separating component is provided on the path of the multi-stage spring clip for separating the multi-stage spring clip to allow the hanging rod to descend step by step.

[0011] Preferably, the separating component includes a support frame fixed to the inner wall of the cylinder. Two blocks are slidably disposed on the side of the support frame. The two blocks are brought together in the middle by their respective springs. The vertical cross-section of the two blocks is a right trapezoid, and when the two blocks are put together, there is a notch in the middle of the lower end. The upper end of the hanging rod is set as a conical apex and corresponds to the notch, for separating the two blocks.

[0012] Preferably, the multi-stage spring clip includes two spring clips on the left and right sides and multiple cone blocks arranged on the inner sides of the two spring clips. The two cone blocks are brought together to drive the hanging rod to rise, and the dividing block is located between the two spring clips on the left and right sides to separate the two spring clips.

[0013] Preferably, multiple second clamping pieces and multiple third clamping pieces are provided at equal intervals. The compression frame includes multiple supports provided at equal intervals and an annular frame that connects each support in series. Each support corresponds to one second clamping piece and one third clamping piece. The upper crossbar on the support is used to press down the second clamping piece, and the lower crossbar on the support is used to press down the third clamping piece.

[0014] This invention is implemented as follows: a slope restoration process includes the following steps:

[0015] Step S1: Clear the slope;

[0016] Step S2: Measure and locate the anchor hole;

[0017] Step S3: Grouting and installation of anchor cables, followed by tightening using anchor cable tensioning equipment;

[0018] Step S4: Lay the netting using each anchor cable as a fulcrum;

[0019] Step S5: Spraying the substrate and grass seeds;

[0020] Step S6: Regular maintenance of green plants in the later stages.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The slope anchor cable tensioning device and slope repair process of the present invention allow the free end of the anchor cable to pass through the pad and the second anchor plate, and the third clamping plate of the pad locks the free end of the anchor cable in the first through hole, while the second clamping plate of the second anchor plate locks the free end of the anchor cable in the second through hole. The hydraulic jack drives the second anchor plate to pull the free end of the anchor cable. Due to the pulling of the anchor cable, both the second and third clamping plates may loosen and fail to clamp the anchor cable. At the same time, the transmission component, under the action of the hydraulic jack, reciprocates in multiple stages to intermittently press down the second and third clamping plates, so that they always clamp the anchor cable and prevent the anchor cable from loosening. The entire device is fully automatic and does not require manual pressing of the clamping plates one by one, making the operation more convenient. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a top view of the structure of the present invention;

[0024] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0025] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point C;

[0026] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point D;

[0027] Figure 6 for Figure 5 A schematic diagram of the BB-oriented structural section;

[0028] In the picture:

[0029] 1. Hydraulic jack; 11. Cylinder body; 12. Piston support; 13. Cavity; 14. Support leg;

[0030] 21. First anchor plate; 22. Second anchor plate; 221. Second through hole; 222. Second clamping piece; 223. Limiting groove; 224. Limiting block; 225. Vertical groove; 23. Steel cable; 24. Conical hole; 25. First clamping piece;

[0031] 3. Anchor cable;

[0032] 4. Pad; 41. First through hole; 42. Third clamping piece

[0033] 5. Transmission assembly; 51. Extrusion frame; 511. Support; 5111. Upper crossbar; 5112. Lower crossbar; 512. Ring frame; 52. Energy storage component; 53. Hanging rod; 54. Multi-stage spring clip; 541. Spring; 542. Conical block; 55. Separator; 551. Support frame; 552. Segment; 553. Spring; 56. Telescopic sleeve rod. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] Please see Figure 1-6 The present invention provides a technical solution:

[0036] A slope anchor cable tensioning device includes a through-type hydraulic jack 1. The upper end of the hydraulic jack 1 is provided with a first anchor plate 21. The first anchor plate 21 is connected to a second anchor plate 22 through multiple steel cables 23. The second anchor plate 22 clamps the free end of the anchor cable 3. A pad 4 is provided at the part of the anchor cable 3 close to the slope surface. The free end of the anchor cable 3 passes through the pad 4 and is locked by multiple third clamps 42. The hydraulic jack 1 drives the first anchor plate 21 and the second anchor plate 22 to rise and fall, thereby pulling the automatic end of the anchor cable 3 outward. A transmission component 5 is also provided inside the hydraulic jack 1. Under the action of the hydraulic jack 1 rising, the transmission component 5 reciprocates to press down the third clamps 42, thereby pushing the third clamps 42 to always clamp and lock the free end of the anchor cable 3.

[0037] In this embodiment, the free end of the anchor cable 3 passes through the pad 4 and the second anchor plate 22, and is locked in the first through hole 41 by the third clamping piece 42 of the pad 4, and in the second through hole 221 by the second clamping piece 222 of the second anchor plate 22. The hydraulic jack 1 drives the second anchor plate 22 to pull the free end of the anchor cable 3. Due to the pulling of the anchor cable 3, the second clamping piece 222 and the third clamping piece 42 may loosen and fail to clamp the anchor cable 3. At this time, the transmission component 5 reciprocates and descends under the action of the hydraulic jack 1 to press down the second clamping piece 222 and the third clamping piece 42, so that they always clamp the anchor cable 3 and prevent the anchor cable 3 from loosening.

[0038] The hydraulic jack 1 includes a sleeve-type cylinder body 11. Inside the cylinder body 11 is a piston support 12, and inside the piston support 12 is a cavity 13 for the movement of the second anchor plate 22 and the transmission assembly 5. A support foot 14 is located at the bottom of the cylinder body 11 and is inserted into a pad 4. Both the first anchor plate 21 and the second anchor plate 22 have multiple conical holes 24 spaced evenly in annular pattern on their surfaces. Each conical hole 24 contains a steel cable 23. The upper end of the steel cable 23 is inserted into the conical hole 24 of the first anchor plate 21 via a set of multiple first clamping pieces 25, and the lower end of the steel cable 23 is inserted into the conical hole 24 of the second anchor plate 22 via another set of multiple first clamping pieces 25. The conical holes 24 of the first anchor plate 21 and the second anchor plate 22 have opposite tapers. The first anchor plate 21 is located at the upper end of the piston support 12.

[0039] In this embodiment, a first anchor plate 21, a second anchor plate 22, and multiple steel cables 23 are provided between them. Since the free end of the anchor cable 3 is generally short, it is not practical to set the second anchor plate 22 at the first anchor plate 21 to pull the free end of the anchor cable 3. Therefore, the second anchor plate 22 needs to be set closer to the free end of the anchor cable 3. Since the hydraulic jack 1 itself has a certain length, its piston support 12 cannot contact the second anchor plate 22. Therefore, the first anchor plate 21 and multiple anchor cables 3 need to be set between the second anchor plate 22 and the piston support 12 to connect them, so as to ensure that the anchor cable 3 with a short free end can also be pulled.

[0040] Both the second anchor plate 22 and the pad 4 have conical through holes at their centers, and the through holes are oriented in the same direction and their diameters gradually decrease from top to bottom. The free end of the anchor cable 3 passes through the first through hole 41 of the pad 4 and the second through hole 221 of the second anchor plate 22 in sequence. The anchor cable 3 is locked in the first through hole 41 by multiple third clamping pieces 42, and the anchor cable 3 is locked in the second through hole 221 by multiple second clamping pieces 222. The second through hole 221 is provided with a limiting groove 223 inside, and the back of the second clamping piece 222 is provided with a limiting block 224. The limiting block 224 slides along the limiting groove 223. The second clamping piece 222 and the third clamping piece 42 are each equally spaced. The compression frame 51 includes multiple supports 511 equally spaced and an annular frame 512 that connects the supports 511 in series. Each support 511 corresponds to a second clamping piece 222 and a third clamping piece 42. The upper crossbar 5111 on the support 511 is used to press down the second clamping piece 222, and the lower crossbar 5112 on the support 511 is used to press down the third clamping piece 42.

[0041] In this embodiment, the free end of the anchor cable 3 passes through the first through hole 41 of the pad 4 and the second through hole 221 of the second anchor plate 22 in sequence. Then, a plurality of third clips 42 are inserted into the first through hole 41 of the pad 4 to partially lock the free end of the anchor cable 3, and a plurality of second clips 222 are inserted into the second through hole 221 of the second anchor plate 22 to lock the free end of the anchor cable 3. Since the first through hole 41 and the second through hole 221 are both set in a conical shape, the second clips 222 and the third clips 42 are both set in a partially conical shape. When inserted into the conical through hole, the free end of the anchor cable 3 can be locked. Because the tapers are all oriented towards the side closer to the slope, when the anchor cable 3 is pulled outward, the second clamping piece 222 and the third clamping piece 42 may detach from the second through hole 221 and the first through hole 41, resulting in an unstable clamping of the anchor cable 3. Therefore, when the hydraulic jack 1 pulls the anchor cable 3, the transmission component 5 reciprocates and rises and falls, and the compression frame 51 suddenly and rapidly descends. The upper crossbar 5111 can press down the second clamping piece 222, and the lower crossbar 5112 can press down the third clamping piece 42. Since there are multiple second clamping pieces 222 and third clamping pieces 42, multiple brackets 511 are also set up to press down each clamping piece, and they correspond one-to-one. In order to control the synchronous movement of multiple brackets 511, a ring frame 512 is set above them to connect them in series and ensure their synchronous movement. The reason for setting multiple second clamping pieces 222 and third clamping pieces 42 is to facilitate their enclosure and clamping of the outer wall of the anchor cable 3. The second clamping piece 222 slides along the limiting groove 223 inside the second through hole 221 via the limiting block 224. This prevents the second clamping pieces 222 from detaching from the second through hole 221 when the anchor cable 3 passes through the second through hole 221 from bottom to top, thus making it inconvenient to readjust their positions. On the other hand, it also helps the bracket 511 to press down on the second clamping pieces 222, ensuring that the upper crossbar 5111 corresponds to the second clamping piece 222. Thus, the positions of the third clamping pieces 42 in the first through hole 41 of the lower pad 4 can also be placed with reference to the position of the bracket 511, so that each second clamping piece 222 corresponds to each third clamping piece 42.

[0042] See Figure 4 , Figure 5 as well as Figure 6The transmission assembly 5 includes an extrusion frame 51 and a power storage component 52 mounted on the second anchor plate 22. The extrusion frame 51 slides along the vertical groove 225 opened in the second anchor plate 22. The power storage component 52 is used to drive the extrusion frame 51 to descend. The upper side of the extrusion frame 51 is provided with a hanging rod 53. The hanging rod 53 is clamped in multiple stages by a multi-stage spring clip 54. The upper end of the multi-stage spring clip 54 is mounted on the bottom surface of the piston support 12 through a telescopic sleeve 56. A separating component 55 is provided on the path of the multi-stage spring clip 54 to separate the multi-stage spring clip 54 so that the hanging rod 53 can descend step by step. The separating component 55 includes a support frame 551 fixed to the inner wall of the cylinder body 11. Two blocks 552 are slidably disposed on the side of the support frame 551. The two blocks 552 are brought together by their respective springs 553. The vertical cross-section of both blocks 552 is a right-angled trapezoid, and when the two blocks 552 are together, there is a notch in the middle of the lower end. The upper end of the hanging rod 53 is a conical apex corresponding to this notch, used to separate the two blocks 552. The multi-stage spring clip 54 includes two left and right spring clips 541, and multiple conical blocks 542 are disposed on the inner sides of the two spring clips 541. The two conical blocks 542 are brought together to drive the hanging rod 53 upward. The blocks 552 are located between the left and right spring clips 541 for separating the left and right spring clips 541.

[0043] In this embodiment, the hydraulic jack 1 drives the telescopic sleeve 56 to fully extend first, and then the telescopic sleeve 56 drives the multi-stage spring clip 54 to move upward. The first stage of the multi-stage spring clip 54 drives the hanging rod 53 to move upward as well. The hanging rod 53 drives the pressing frame 51 to move upward, and the accumulator 52 accumulates power. When the hanging rod 53 moves to the separating piece 55, the upper end of the hanging rod 53 separates the two blocks 552 of the separating piece 55. The two blocks 552 separate the multi-stage spring clip 54, so that the hanging rod 53 falls from the first stage of the multi-stage spring clip 54 to the second stage under the action of the accumulator 52. At the same time, the pressing frame 51 also descends rapidly and presses down on the multiple second clips 222 that have disengaged from the second through hole 221 through the upper crossbar 5111, and also presses down on the multiple third clips 42 that have disengaged from the first through hole 41 through the lower crossbar 5112, thereby locking the free end of the anchor cable 3 again. The spacing between the uppermost section of the multi-stage spring clip 54 and the hanging rod 53, as well as the arrangement of the telescopic sleeve rod 56, serve as a buffer against the impact of the hydraulic jack 1 on the transmission assembly 5 during movement, providing support for the downward pulling of the compression frame 51 of the transmission assembly 5. The multi-stage spring clip 54 consists of two conical blocks 542 that close together at the same position forming one stage, and the arrangement of multiple conical blocks 542 enables multi-stage adjustment. The spacing between each stage is the same, so that when the anchor cable 3 moves a fixed length, the second clip 222 and the third clip 42, which may disengage in the same way each time, can be returned to their original positions, achieving step-by-step locking of the anchor cable 3 position.

[0044] The working principle and usage process of this invention are as follows: First, take out the pad plate 4 and pass the free end of the anchor cable 3 through the first through hole 41 of the pad plate 4. Insert multiple third clamping pieces 42 into the first through hole 41 to lock the anchor cable 3, so that the pad plate 4 fits the slope. Then, install the hydraulic jack 1 on the pad plate 4 and insert the support foot 14 into the hole of the pad plate 4. Then, insert the free end of the anchor cable 3 into the second through hole 221 of the second anchor plate 22. Then, pull any lower crossbar 5112. The lower crossbar 5112 drives the entire compression frame 51 to descend through the bracket 511, so that each upper crossbar 5111 descends and presses the second clamping pieces 222 back into place due to the possible upward movement of the anchor cable 3, locking the free end of the anchor cable 3 and completing the fixation of the anchor cable 3.

[0045] After the invention is installed, during use, the hydraulic jack 1 is activated, causing the piston support 12 to rise along the cylinder body 11. The rise of the piston support 12 causes the first anchor plate 21 to rise as well. The rise of the first anchor plate 21, through multiple steel cables 23, causes the second anchor plate 22 to rise along the cavity 13 inside the piston support 12. The rise of the second anchor plate 22 causes the free end of the anchor cable 3 to rise and be pulled outward. Because the anchor cable 3 is pulled outward, multiple anchors located in the second through hole 221 of the second anchor plate 22 are... The second clamping piece 222 and multiple third clamping pieces 42 in the first through hole 41 of the pad 4 may be pulled out and detached from the second through hole 221 or the first through hole 41. Due to the slow rise of the piston support 12, during its rise, it first drives the telescopic sleeve 56 to fully unfold. Then, the telescopic sleeve 56 drives the multi-stage spring clip 54 to move upward. The first stage of the multi-stage spring clip 54 drives the hanging rod 53 to move upward as well. The hanging rod 53 drives the extrusion frame 51 to move upward. The accumulator 52 accumulates force. When the hanging rod 53 moves to the point... When the part is opened at position 55, the upper end of the hanging rod 53 separates the two segments 552 of the separating part 55. The two segments 552 separate the multi-stage spring clip 54, so that the hanging rod 53 falls from the first stage to the second stage of the multi-stage spring clip 54 under the action of the accumulator 52. At the same time, the compression frame 51 also descends rapidly, pressing down on the multiple second clips 222 that have disengaged from the second through hole 221 via the upper crossbar 5111, and pressing down on the multiple third clips 42 that have disengaged from the first through hole 41 via the lower crossbar 5112. The pressure is applied to re-lock the free end of the anchor cable 3. By repeatedly repositioning the second clamp 222 and the third clamp 42, the distance the free end of the anchor cable 3 is pulled out each time is locked. Then, the tensioning of the anchor cable 3 by the hydraulic jack 1 is stopped. After that, the second clamp 222 is pushed up by controlling the anchor cable 3 to open, and the free end of the anchor cable 3 is removed from the second anchor plate 22. Then, the hydraulic jack 1 is removed, leaving the anchor cable 3 and the pad 4 to cooperate with the subsequent net hanging operation.

[0046] A slope restoration process includes the following steps:

[0047] Step S1: Clear the slope;

[0048] Step S2: Measure and locate the anchor hole;

[0049] Step S3: Grouting and installation of anchor cables, followed by tightening using anchor cable tensioning equipment;

[0050] Step S4: Lay the netting using each anchor cable as a fulcrum;

[0051] Step S5: Spraying the substrate and grass seeds;

[0052] Step S6: Regular maintenance of green plants in the later stages.

[0053] In this embodiment, debris on the slope is cleared to ensure a flat slope and eliminate the risk of falling rocks. The slope is then planned and laid out, and anchor cables are drilled at the marked points using electric or pneumatic drills, perpendicular to the slope. Cement mortar is injected into the anchor cable holes using a grouting machine, and the anchor cables are inserted to ensure a tight bond between the anchor cables and the cement mortar, preventing them from being pulled out. The anchor cables are then tightened using an anchor cable tensioning device. Plastic-coated galvanized wire mesh is then laid on the slope to form a hanging net. The slope is moistened by manual spraying. Substrate and seeds are then sprayed manually. Finally, maintenance and management are carried out, mainly including irrigation, fertilization, pest and disease control, substrate repair, re-spraying, and thinning. The above-mentioned hydroseeding feed consists of a base material mixture plus seeds. Sun-dried peat moss, humus (sieved), wood (grass) fiber, water-retaining agent, slow-release compound fertilizer, adhesive, and other greening base materials and plant seeds are poured into the concrete mixer in the designed proportions and mixed evenly with the mixer.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slope anchor cable tensioning device, characterized in that: The system includes a through-type hydraulic jack (1), with a first anchor plate (21) at its upper end. The first anchor plate (21) is connected to a second anchor plate (22) via multiple steel cables (23). The second anchor plate (22) clamps the free end of an anchor cable (3). A pad (4) is provided at the part of the anchor cable (3) close to the slope. The free end of the anchor cable (3) passes through the pad (4) and is locked by multiple third clamps (42). The hydraulic jack (1) drives the first anchor plate (21) and the second anchor plate (22) to rise and fall, thereby pulling the automatic end of the anchor cable (3) outward. Inside the hydraulic jack (1), a transmission assembly (5) is also provided. Under the action of the hydraulic jack (1) rising, the transmission assembly (5) reciprocates and lifts to press down the third clamping plate (42), so as to push the third clamping plate (42) to always clamp and lock the free end of the anchor cable (3). The hydraulic jack (1) includes a sleeve-type cylinder (11). Inside the cylinder (11), a piston support (12) is provided. Inside the piston support (12), a cavity (13) is provided for the second anchor plate (22) and the transmission assembly (5) to move. At the bottom of the cylinder (11), a support foot (14) is provided, which is inserted into the pad (4). Both the second anchor plate (22) and the pad (4) have conical through holes at their centers, and the through holes are oriented in the same direction and their diameters gradually decrease from top to bottom. The free end of the anchor cable (3) passes through the first through hole (41) of the pad (4) and the second through hole (221) of the second anchor plate (22) in sequence. The anchor cable (3) is locked in the first through hole (41) by multiple third clips (42), and the anchor cable (3) is locked in the second through hole (221) by multiple second clips (222). The second through hole (221) is provided with a limiting groove (223) inside, and the back of the second clip (222) is provided with a limiting block (224), which slides along the limiting groove (223); The transmission assembly (5) includes an extrusion frame (51) and a power storage component (52) mounted on the second anchor plate (22). The extrusion frame (51) slides along the vertical groove (225) opened on the second anchor plate (22). The power storage component (52) is used to drive the extrusion frame (51) to descend. The upper side of the extrusion frame (51) is provided with a hanging rod (53). The hanging rod (53) is clamped in multiple stages by a multi-stage spring clip (54). The upper end of the multi-stage spring clip (54) is mounted on the bottom surface of the piston support (12) through a telescopic sleeve (56). A separating component (55) is provided on the path of the multi-stage spring clip (54) to separate the multi-stage spring clip (54) so ​​that the hanging rod (53) can descend step by step.

2. The slope anchor cable tensioning device as described in claim 1, characterized in that: The surfaces of the first anchor plate (21) and the second anchor plate (22) are provided with a plurality of conical holes (24) at equal intervals in an annular shape, and a steel cable (23) is provided inside each conical hole (24). The upper end of the steel cable (23) is inserted into the conical hole (24) of the first anchor plate (21) through a set of a plurality of first clips (25), and the lower end of the steel cable (23) is inserted into the conical hole (24) of the second anchor plate (22) through another set of a plurality of first clips (25). The conical holes (24) of the first anchor plate (21) and the conical holes (24) of the second anchor plate (22) have opposite tapers. The first anchor plate (21) is located at the upper end of the piston support (12).

3. The slope anchor cable tensioning device as described in claim 1, characterized in that: The separating component (55) includes a support frame (551) fixed to the inner wall of the cylinder (11). Two blocks (552) are slidably arranged on the side of the support frame (551). The two blocks (552) are brought together in the middle by their respective springs (553). The vertical cross-section of the two blocks (552) is a right trapezoid. When the two blocks (552) are put together, there is a notch in the middle of the lower end. The upper end of the hanging rod (53) is set as a cone top and corresponds to the notch, which is used to separate the two blocks (552). The multi-stage spring clip (54) includes two spring clips (541) on the left and right sides, and multiple cone blocks (542) are provided on the inner side of the two spring clips (541). The two cone blocks (542) are brought together to drive the hanging rod (53) to rise. The dividing block (552) is located between the two spring clips (541) on the left and right sides for the two spring clips (541) to separate.

4. The slope anchor cable tensioning device as described in claim 1, characterized in that: The second clamping piece (222) and the third clamping piece (42) are provided at equal intervals. The compression frame (51) includes multiple supports (511) provided at equal intervals and an annular frame (512) that connects each support (511) in series. Each support (511) corresponds to one second clamping piece (222) and one third clamping piece (42). The upper crossbar (5111) on the support (511) is used to press down the second clamping piece (222), and the lower crossbar (5112) on the support (511) is used to press down the third clamping piece (42).

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