A slope reinforcement device

Abstract

This utility model discloses a slope reinforcement device, relating to the field of slope support in geotechnical engineering. It includes a fixed base and a fixed frame vertically installed on one side of the fixed base, as well as a bearing arm rotating on the fixed frame. The bearing arm is equipped with a safety net fixing component for securing a protective net. A tensioning component is provided on the back of the fixed base. The rotation angle of the bearing arm and the tension of the protective net on the safety net fixing component are controlled by the tensioning component. At least two safety net fixing components on this device work together to secure both sides of the protective net, jointly constructing a stable spatial force-bearing frame. This frame can evenly distribute and transmit the constraint force of the protective net, effectively avoiding stress concentration. This tightly connects the unstable rock mass with the stable mountain behind it into a unified force-bearing structure, significantly enhancing the overall stiffness and stability of the slope.

Description

Technical Field

[0001] This utility model relates to the field of slope protection in geotechnical engineering, and in particular to a slope reinforcement device. Background Technology

[0002] Prevention and control of unstable rock masses on slopes is a common problem in geological disaster management, especially isolated unstable rock masses located above highways, railways, and buildings in mountainous areas, whose instability and collapse pose a great hazard. Currently, active protection net systems are often used to reinforce them. The principle is to cover the slope surface with steel wire rope nets and pre-tension them to restrain the movement of unstable rock masses.

[0003] Existing technologies mostly rely on single-point independent anchor bolts or anchor ropes to fix the protective net. Once the anchoring node is installed, its angle and tension are fixed and cannot be adjusted. Operators cannot quantitatively adjust the support strength and direction for specific key blocks according to the specific shape, size and instability risk of the unstable rock mass. This one-size-fits-all reinforcement method leads to low support efficiency, uneconomical use of materials, and the inability to compensate for tension based on rock mass creep in the later stage, affecting the long-term reliability and maintainability of the system. Utility Model Content

[0004] The purpose of this utility model is to provide a slope reinforcement device in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a slope reinforcement device, comprising a fixed base and a fixed frame vertically installed on one side of the fixed base, and a bearing arm rotating on the fixed frame. The bearing arm is provided with a safety net fixing component for fixing the protective net. A tensioning component is provided on the back of the fixed base. The rotation angle of the bearing arm and the tension of the protective net on the safety net fixing component are controlled by setting the tensioning component. The safety net fixing assembly includes a plurality of latches mounted on a support arm, wherein a portion of the latches are slidably mounted on the support arm.

[0006] As a further description of the above technical solution: the safety net fixing component also includes a groove formed on the bearing arm, a slider is slidably installed inside the groove, and a connecting ring is fixedly installed at the top of the slider to be bound and connected to the cable wound on the tensioning component.

[0007] As a further description of the above technical solution: a plurality of the aforementioned rectangular array of latches are installed on the front side of the bearing arm, and a portion of the plurality of latches are symmetrically installed on both sides of the slider.

[0008] As a further description of the above technical solution: the tensioning assembly includes an installation groove opened on the rear side of the fixed seat, and two cable reels are rotatably installed on the two sides of the inner cavity of the installation groove away from the center, respectively. The cable wound on one of the cable reels is bound to the rear side of the bearing arm, and the cable wound on the other cable reel is bound to the connecting ring.

[0009] As a further description of the above technical solution: the two cable reels are arranged one above the other in the mounting groove.

[0010] As a further description of the above technical solution: a sleeve is fixedly connected to the bottom of the mounting groove cavity between two cable reels. A telescopic hole is opened at the top of the sleeve. A rotating rod is movably installed inside the telescopic hole. The top of the rotating rod passes through the mounting groove cavity and extends outward. A spring is placed inside the telescopic hole. The two ends of the spring abut against the bottom of the telescopic hole cavity and the bottom of the rotating rod, respectively.

[0011] As a further description of the above technical solution: two driven wheels are fixedly connected to the upper side of the two cable reels respectively, and gears that drive the two driven wheels to rotate are fixedly installed on the outer side of the rotating rod.

[0012] As a further description of the above technical solution: the driven wheel has a toothed groove on its outer side that meshes with the gear, and a ratchet groove on its inner side. A pawl adapted to the ratchet groove is movably installed on the side of the driven wheel near the shaft. The pawl is held in place by a torsion spring. The pawl's rotating shaft passes through the mounting groove and extends outward. A handle is installed on the pawl's rotating shaft.

[0013] As a further description of the above technical solution: the tensioning assembly also includes a guide groove that runs through the middle of the fixed frame, and a guide wheel is rotatably installed inside the guide groove. The cable tied to the rear side of the bearing arm is guided by the guide wheel.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: By coordinating the fixation of both sides of the protective net with at least two safety net fixing components on this device, a stable spatial force-bearing frame is constructed. This frame can evenly distribute and transmit the constraint force of the protective net, effectively avoiding stress concentration, thereby tightly connecting the unstable rock mass with the stable mountain behind it into a whole that shares the force, significantly enhancing the overall stiffness and stability of the slope. By controlling the up and down lifting angle of the bearing arm on the fixed frame through the tensioning component, the lifting force of the protective net tensioned between the two devices on the unstable rock mass can be precisely adjusted. This design allows operators to quantitatively adjust the magnitude and direction of the lifting force according to the specific instability mode of the unstable rock mass, such as sliding, tilting, or falling. By precisely adjusting the angle of the bearing arm on one or more sides, the most suitable support force can be applied to specific key blocks, achieving targeted and precise reinforcement, which greatly optimizes the support efficiency and material utilization efficiency. Under natural conditions, slope rock masses can undergo creep, stress relaxation, or slight displacement, causing traditional fixed protective nets to fail due to tension decay. This device can perform secondary tensioning on the protective net installed on the safety net fixing component through the drive mechanism tensioning component, easily offsetting the prestress loss caused by rock mass deformation, ensuring that the protective net always fully fits the slope surface, and maintaining continuous restraint on the dangerous rock mass. This greatly extends the effective service life of the system and significantly reduces the difficulty and cost of later maintenance. Attached Figure Description

[0015] Figure 1 This is a side elevation view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the fixed base and the tensioning assembly in this utility model; Figure 3 This is a schematic diagram of the connection structure between the fixing frame, the bearing arm, and the safety net fixing assembly in this utility model; Figure 4 This is a partial cross-sectional view of the connection structure between the sleeve and the two cable reels in this utility model. Figure 5 This is a schematic diagram showing the disassembled structure of the cable reel and driven wheel in this utility model.

[0016] Legend: 1. Fixed base; 2. Fixed frame; 3. Bearing arm; 4. Safety net fixing assembly; 41. Slide groove; 42. Lock; 43. Sliding block; 44. Connecting ring; 5. Tensioning assembly; 51. Mounting groove; 52. Cable reel; 53. Sleeve; 531. Rotating rod; 532. Gear; 533. Telescopic hole; 534. Spring; 54. Guide groove; 541. Guide wheel; 55. Driven wheel; 551. Tooth groove; 552. Racket groove; 554. Pawl; 555. Rotating handle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1 As shown, the present invention provides a slope reinforcement device, including a fixed base 1 and a fixed frame 2 vertically installed on one side of the base, and a bearing arm 3 rotating on the fixed frame 2. The bearing arm 3 is provided with a safety net fixing component 4 for fixing the protective net. The back of the fixed base 1 is provided with a tensioning component 5. The rotation angle of the bearing arm 3 and the tension of the protective net on the safety net fixing component 4 are controlled by the tensioning component 5.

[0019] In actual use, this solution involves securing multiple base component fixing seats 1 on the device to designated locations using anchor bolts or similar methods. Vertical component fixing frames 2 are fixed to the upper side of the fixing seats 1 to provide support for the entire device. One edge of the protective net is fixed to the safety net fixing component 4 of the fixing mechanism of one device. Then, the protective net is laid out and its other edge is fixed to the safety net fixing component 4 of the fixing mechanism of another device. At this point, the protective net is in a preliminary hanging state but has not yet been tensioned. The operator operates the drive mechanism tensioning assembly 5 located on the back of the base component fixing seat 1. Under the action of the drive mechanism tensioning assembly 5, the bearing arm 3 on the fixing frame 2 rotates. Since the protective net is fixed to the safety net fixing assembly 4 on the bearing arm 3, the rotation of the bearing arm 3 will roll up or release the protective net fixed thereon, thereby directly changing the tension of the protective net between the two devices. The rotation of the rotating component bearing arm 3 is essentially a change in its angle. When it rotates outward, it increases the tension of the protective net, making it taut; when it rotates inward, it decreases the tension, making it slack. By controlling the rotation angle of the bearing arm 3, linear and precise control of the tension of the protective net can be achieved. Under natural conditions, slope rock masses may experience creep, stress relaxation, or slight displacement, causing traditional fixed protective nets to fail due to tension decay. This device can perform secondary tensioning on the protective net installed on the safety net fixing component 4 through the drive mechanism tensioning component 5, easily offsetting the prestress loss caused by rock mass deformation, ensuring that the protective net always fully fits the slope surface, and maintaining continuous restraint on the dangerous rock mass.

[0020] Specifically, such as Figure 1 and Figure 3As shown, the safety net fixing assembly 4 includes a plurality of latches 42 mounted on the support arm 3, wherein a portion of the latches 42 are slidably mounted on the support arm 3; The safety net fixing component 4 also includes a groove 41 opened on the bearing arm 3, a slider 43 is slidably installed inside the groove 41, and a connecting ring 44 is fixedly installed at the top of the slider 43 and is bound to the cable wound on the tensioning component 5. A rectangular array of several latches 42 is installed on the front side of the support arm 3, and a portion of the latches 42 are symmetrically installed on both sides of the slider 43; Install one side of the protective netting on the latch 42 fixedly installed on the bearing arm 3, and the other side of the protective netting on the latch 42 installed on the slider 43. When the tensioning component 5 is driven to rewind through the slider 43 which is slidably installed in the groove 41 at the lower end of the connecting ring 44, the protective netting will open. This tensioning process can be precisely adjusted by controlling the stroke of the tensioning component 5 of the winding mechanism according to the specific distribution and shape of the dangerous rock mass on the slope surface, so as to achieve adaptive wrapping and reliable constraint of the dangerous rock mass.

[0021] Specifically, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the tensioning assembly 5 includes an installation groove 51 opened on the rear side of the fixed base 1. Two cable reels 52 are rotatably installed on the two sides of the inner cavity of the installation groove 51 away from the center. The cable wound on one cable reel 52 is tied to the rear side of the bearing arm 3, and the cable wound on the other cable reel 52 is tied to the connecting ring 44. A sleeve 53 is fixedly connected to the bottom of the inner cavity of the mounting groove 51 between two cable reels 52. A telescopic hole 533 is opened at the top of the sleeve 53. A rotating rod 531 is movably installed inside the telescopic hole 533. The top of the rotating rod 531 passes through the inner cavity of the mounting groove 51 and extends outward. A spring 534 is placed inside the telescopic hole 533. The two ends of the spring 534 abut against the bottom of the inner cavity of the telescopic hole 533 and the bottom of the rotating rod 531, respectively. Two cable reels 52 are arranged one above the other in the mounting groove 51; Two driven wheels 55 are fixedly connected to the upper side of the two cable reels 52 respectively, and gears 532 that drive the two driven wheels 55 to rotate are fixedly installed on the outer side of the rotating rod 531. The driven wheel 55 has a toothed groove 551 on its outer side that meshes with the gear 532, and a ratchet groove 552 on its inner side. A pawl 554 that matches the ratchet groove 552 is movably installed on the side of the driven wheel 55 near the shaft. The pawl 554 is held in place with the ratchet groove 552 by a torsion spring. The rotating shaft of the pawl 554 passes through the mounting groove 51 and extends outward. A handle 555 is installed on the rotating shaft of the pawl 554. The tensioning assembly 5 also includes a guide groove 54 that runs through the middle of the fixed frame 2. A guide wheel 541 is rotatably installed inside the guide groove 54. The cable tied to the rear side of the bearing arm 3 is guided by the guide wheel 541. The gear 532 on the outside of the rotating rod 531 is driven to rotate by a tool such as a pistol drill, which in turn drives the two driven wheels 55 to rotate. When the driven wheels 55 rotate forward, they drive the two cable reels 52 to unwind. When the two cable reels 52 need to be wound up, the rotating rod 531 can be driven to rotate in reverse by the pistol drill. Two cable reels 52 are arranged one above the other in the mounting slot 51. When one of the cable reels 52 is winding or unwinding, the cable drives the slider 43 to move through the connecting ring 44. When the other cable reel 52 is winding, it drives the rotating bearing arm 3 on the fixed frame 2 to adjust the angle. When the bearing arm 3 is adjusted in angle, the cable on the corresponding cable reel 52 is connected to the rear of the bearing arm 3 by the guide wheel 541 rotatably installed in the guide groove 54. This ensures that when the bearing arm 3 is pulled, the rear side of the bearing arm 3 can rotate forward, so that the front side of the bearing arm 3 can rotate upward effectively. This avoids the cable reel 52 directly pulling the bearing arm 3, which would prevent the bearing arm 3 from having enough range to rotate upward. When the gear 532 drives the bottom cable reel 52, the rotating rod 531 driven by the pistol drill needs to be pressed down to make the rotating rod 531 drive the gear 532 to slide down along the guide of the inner surface of the telescopic hole 533, so that the gear 532 is aligned with the 511 opened on the bottom driven wheel 55. In this way, the rotating rod 531 and the tooth groove 551 rotate to drive the bottom cable reel 52 to rotate. Conversely, when it is necessary to drive the uppermost cable reel 52 to rotate, the gear 532 is engaged with the driven wheel 55 on the uppermost cable reel 52 by the push of the spring 534 inside the telescopic hole 533, so that the uppermost driven wheel 55 can be directly driven to rotate by the pistol drill. A ratchet groove 552 is provided on the inner side of the driven wheel 55, and a pawl 554 is held in place by a torsion spring and the ratchet groove 552. By setting the pawl 554, the driven wheel 55 can only rotate and rewind, avoiding unnecessary displacement of the bearing arm 3 or the slider 43 due to unnecessary unwinding. When unwinding is required, the handle 555 is rotated in the opposite direction to release the limiting effect of the pawl 554 and the inner ratchet groove 552 of the driven wheel 55, so that the cable reel 52 can perform unwinding operation.

[0022] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A slope reinforcement device, comprising a fixed base (1) and a fixed frame (2) vertically mounted on one side of its upper part, and a bearing arm (3) rotatably mounted on the fixed frame (2), characterized in that: The support arm (3) is provided with a safety net fixing component (4) for fixing the protective net, and the back of the fixing seat (1) is provided with a tensioning component (5). The rotation angle of the support arm (3) and the tension of the protective net on the safety net fixing component (4) are controlled by setting the tensioning component (5). The safety net fixing assembly (4) includes a plurality of latches (42) mounted on the support arm (3), wherein a portion of the plurality of latches (42) are slidably mounted on the support arm (3).

2. The slope reinforcement device according to claim 1, characterized in that, The safety net fixing assembly (4) also includes a groove (41) opened on the bearing arm (3), a slider (43) is slidably installed inside the groove (41), and a connecting ring (44) is fixedly installed at the top of the slider (43) and is bound to the cable wound on the tensioning assembly (5).

3. The slope reinforcement device according to claim 2, characterized in that, A rectangular array of several of the latches (42) is installed on the front side of the support arm (3), and a portion of the latches (42) are symmetrically installed on both sides of the slider (43).

4. The slope reinforcement device according to claim 3, characterized in that, The tensioning assembly (5) includes a mounting groove (51) opened on the rear side of the fixed base (1). Two cable reels (52) are rotatably mounted on the two sides of the inner cavity of the mounting groove (51) away from the center. The cable wound on one of the cable reels (52) is tied to the rear side of the bearing arm (3), and the cable wound on the other cable reel (52) is tied to the connecting ring (44).

5. A slope reinforcement device according to claim 4, characterized in that, The two cable reels (52) are arranged one above the other in the mounting slot (51).

6. A slope reinforcement device according to claim 5, characterized in that, The bottom of the inner cavity of the mounting groove (51) is fixedly connected to a sleeve (53) between two cable reels (52). The top of the sleeve (53) is provided with a telescopic hole (533). A rotating rod (531) is movably installed inside the telescopic hole (533). The top of the rotating rod (531) passes through the inner cavity of the mounting groove (51) and extends outward. A spring (534) is placed inside the telescopic hole (533). The two ends of the spring (534) abut against the bottom of the inner cavity of the telescopic hole (533) and the bottom of the rotating rod (531), respectively.

7. A slope reinforcement device according to claim 6, characterized in that, Two driven wheels (55) are fixedly connected to the upper side of the two cable reels (52), and gears (532) that drive the two driven wheels (55) to rotate are fixedly installed on the outer side of the rotating rod (531).

8. A slope reinforcement device according to claim 7, characterized in that, The driven wheel (55) has a tooth groove (551) on its outer side that meshes with the gear (532), and a ratchet groove (552) on its inner side. A pawl (554) that matches the ratchet groove (552) is movably installed on the side of the driven wheel (55) near the shaft. The pawl (554) is held in place by a torsion spring with the ratchet groove (552). The rotating shaft of the pawl (554) passes through the mounting groove (51) and extends outward. A handle (555) is installed on the rotating shaft of the pawl (554).

9. A slope reinforcement device according to claim 3, characterized in that, The tensioning assembly (5) also includes a guide groove (54) that runs through the middle of the fixed frame (2). A guide wheel (541) is rotatably installed inside the guide groove (54). The cable tied to the rear side of the bearing arm (3) is guided by the guide wheel (541).

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