Cantilever type passive protection system easy to repair

Abstract

The utility model discloses an easy-to-repair cantilever type passive protection system, which comprises at least two upright posts, at least one cantilever type passive protection system, at least one cantilever type passive protection system, at least one cantilever type passive protection system and at least one cantilever type passive protection system, the upper supporting rope is located above the stand column, is close to the mountain body and is arranged in the transverse direction, the upper supporting rope comprises at least two upper supporting rope bodies which are sequentially connected and can be detached from each other, and the ends of the upper supporting rope bodies located on the left side and the right side are fixed to the mountain body; the lower supporting rope is located at the position close to the top of the stand column and arranged in the transverse direction, the lower supporting rope comprises at least two lower supporting rope bodies which are detachably connected in sequence, and the ends of the lower supporting rope bodies located on the left side and the right side are fixed to a mountain; the mesh is arranged between the upper and lower supporting ropes, the upper and lower side edges of the mesh are detachably connected with the upper and lower supporting ropes respectively, and the mesh inclines by a preset angle relative to the horizontal plane. When the device is damaged during use, only the part at the damaged position can be replaced, so that the repair cost is saved, the workload is reduced, and the repair time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of slope protection, in particular to an easily repairable cantilever passive protection system. Background Art

[0002] The cantilever passive protection system is a new type of self-cleaning passive net structure for rockfall protection. Its structural characteristics are high system rigidity and outward tilt of the net surface. It can use the system's own rigidity and the tilt angle of the net surface to bounce fallen rocks on the net surface out of the protection area, avoiding excessive accumulation of fallen rocks on the net surface in the protection area, causing secondary disasters.

[0003] Due to the high rigidity of the cantilever passive net system, the instantaneous impact forces on the components during rockfall interception are significant, resulting in a high frequency of component damage. Furthermore, if the existing support rope system fails, the entire protection system will fail. The functional characteristics of the cantilever passive net dictate that it is primarily installed on narrow mountain routes. If a damaged system requires maintenance, traffic will be blocked for a long time, necessitating an urgent need for improved self-cleaning capabilities and repair efficiency.

[0004] At present, domestic products with the same performance are either steel truss structures or integral connection structures similar to traditional passive network structures. Therefore, they are easily damaged as a whole, resulting in large repair workload and long repair time. In addition, the overall structural design does not take into account the undulations of the mountain and changes in the mountain slope, and its applicability is poor. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an easily repairable cantilever passive protection system, so as to solve the problems that the current cantilever passive protection system will fail as a whole when damaged, and the repair work is large and the repair time is long.

[0006] The technical solution adopted by the utility model to solve the technical problem is: providing an easily repairable cantilever passive protection system, which is arranged above the protection target and includes a column, an upper support rope, a lower support rope and a mesh;

[0007] There are at least two upright posts, each of which is arranged in a spaced relationship in the transverse direction; the bottom of each upright post is fixed on the mountain, and the top of each upright post extends away from the mountain;

[0008] The upper support rope is located above the column and is arranged horizontally close to the mountain. The upper support rope includes at least two upper support ropes that are connected in sequence and can be detached from each other. The ends of the upper support ropes on the left and right sides are fixed relative to the mountain.

[0009] The lower support rope is located near the top of the column and is arranged in the transverse direction. The lower support rope includes at least two lower support ropes that are detachably connected in sequence, wherein the ends of the lower support ropes on the left and right sides are fixed relative to the mountain;

[0010] The mesh is arranged between the upper supporting rope and the lower supporting rope, the upper side of the mesh is connected to the upper supporting rope in a detachable manner, and the lower side is also connected to the lower supporting rope in a detachable manner; and the mesh is inclined at a predetermined angle relative to the horizontal plane to form a slope that is not conducive to fallen rocks staying on the mesh.

[0011] Preferably, the cantilever passive protection system further comprises a longitudinal support rope;

[0012] The number of the longitudinal support ropes is consistent with the number of the pillars, and each longitudinal support rope corresponds to each pillar, and one end of the longitudinal support rope is connected to the top of the pillar, and the other end extends obliquely upward to the vicinity of the upper support rope and is fixed relative to the mountain;

[0013] The left and right sides of the mesh are respectively connected to the two longitudinal support ropes in a detachable manner.

[0014] Preferably, the upper supporting rope is formed with a first connecting structure at the end connected to the adjacent upper supporting rope, and the first connecting structures at the ends of the two adjacent upper supporting ropes are detachably connected through a first connecting member;

[0015] The lower supporting rope is provided with a second connection structure at the end portion connected to the adjacent lower supporting rope, and the second connection structures at the ends of the two adjacent lower supporting ropes are detachably connected via a second connection member.

[0016] Preferably, the upper support rope further comprises an upper support rope split rope, and the lower support rope further comprises a lower support rope split rope;

[0017] A third connection structure is formed at each end of the upper support rope, one end of the upper support rope is detachably connected to the first connection member through one of the third connection structures, and the other end is fixed relative to the mountain through another third connection structure;

[0018] A fourth connecting structure is formed at each end of the lower support rope branch, one end of the lower support rope branch is detachably connected to the second connecting member through one of the fourth connecting structures, and the other end is connected to the top of the column through another fourth connecting structure.

[0019] Preferably, the first connecting structure, the second connecting structure, the third connecting structure and the fourth connecting structure are all aluminum rope rings or rope clamps.

[0020] Preferably, the cantilever passive protection system further comprises an upper support rope limiting base;

[0021] The upper support rope limiting base has a limiting space, the left and right sides of the limiting space are open, the upper side surface, the lower side surface and the bottom side surface close to the mountain of the limiting space are all arc-shaped surfaces, and the limiting space is provided with a detachable limiting component which also has an arc-shaped surface on the side away from the bottom side surface;

[0022] When the upper support rope limiting base is fixed at a predetermined position of the mountain, the upper support rope is restricted by the limiting component and is confined within the limiting space to be close to the mountain.

[0023] Preferably, the upper support rope limiting base includes a bottom plate, a first curved plate, a second curved plate, a third curved plate and the limiting component;

[0024] The base plate is used to be fixed to the mountain; the first curved plate is fixed on the side of the base plate facing away from the mountain, and its curved arch surface is arched toward the side facing away from the mountain to form the bottom side surface; the second curved plate is fixed on the upper side of the first curved plate, and its curved arch surface is arched downward to form the upper side surface; the third curved plate is fixed on the lower side of the first curved plate, and its curved arch surface is arched upward to form the lower side surface; the limiting component is a cylindrical pin, which is vertically detachably inserted into the openings of the second curved plate and the third curved plate on the side away from the first curved plate.

[0025] Preferably, the upper support rope and / or the lower support rope are equipped with a self-recovering buffer device;

[0026] One end of the self-restoring buffer device is connected to the end of the upper supporting rope or the lower supporting rope located at the endmost side, and the other end is fixed relatively to the mountain through a connecting rope.

[0027] Preferably, the self-restoring buffer device comprises a cylinder, a piston rod, a spring and an elastic buffer material;

[0028] One end of the cylinder is open and the other end is closed, and a first hanging ear is provided on the outer side of the closed end of the cylinder;

[0029] A portion of the piston rod is located outside the cylinder, and the other portion is inserted into the cylinder from the open end of the cylinder; a second lug is provided at the end of the piston rod located outside the cylinder; a pull head is provided at the end of the piston rod inserted into the cylinder;

[0030] The spring is located in the cylinder and is sleeved on the piston rod, and one end of the spring abuts against the slider, and the other end abuts against the end plate at the open end of the cylinder;

[0031] The elastic buffer material is located inside the spring and sleeved on the piston rod;

[0032] The first hanging lug is fixed relative to the mountain through the connecting rope, and the second hanging lug is connected to the end of the upper supporting rope or the lower supporting rope located at the endmost side.

[0033] Preferably, the mesh includes a ring mesh and a grid mesh;

[0034] The upper side of the annular net is detachably connected to the upper support rope via a shackle, the lower side is detachably connected to the lower support rope via a shackle, and the left and right sides are respectively detachably connected to the two longitudinal support ropes via a shackle; the grille net is fixed above the annular net.

[0035] The cantilever passive protection system of the present utility model has the following beneficial effects:

[0036] (1) The system forms a stable, elastic and downward-inclined protective surface through columns, pull ropes, support ropes and flexible metal mesh, achieving the self-cleaning effect of the passive protective net; that is, the tensioning plane formed by the fine-pore grid net can prevent small falling rocks from falling into the protection area, and at the same time is more conducive to the sliding and ejection of low-speed falling rocks, reducing the accumulation of falling rocks. If large-energy falling rocks damage the tensioning plane formed by the grid net, the ring net can also intercept and eject them;

[0037] (2) Since the upper support rope is formed by connecting multiple upper support ropes, and the lower support rope is formed by connecting multiple lower support ropes, even if part of the support rope is broken, the remaining system can be kept relatively intact and will not fail as a whole. During repair, the repair effect can be achieved by replacing the local support ropes instead of dismantling the entire system. This can save repair costs, reduce repair workload, shorten repair time, and achieve the purpose of improving repair efficiency.

[0038] Similarly, since the mesh and the supporting ropes are connected in a detachable manner, and an integral mesh can be composed of multiple detachably connected sub-meshes, when a sub-mesh is damaged, it can be easily removed and then replaced, which can also save repair costs, reduce repair workload, and shorten repair time;

[0039] (3) By adding a self-recovering buffer device, the peak impact force of the entire system is reduced, which can protect the system components and increase the service life of the system components;

[0040] (4) By setting up an upper support rope limit base, the fit between the system and the mountain can be improved, ensuring that the mesh can be close to the mountain without leaving any protective gaps. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic structural diagram of a preferred embodiment of an easily repairable cantilever passive protection system provided by the present invention, wherein the grid mesh in the figure only shows a partial area;

[0042] Figure 2 yes Figure 1 A magnified view of the interconnection of the upper middle support ropes;

[0043] Figure 3 yes Figure 1 A magnified view of the connection between the middle and lower support ropes;

[0044] Figure 4 yes Figure 1 An enlarged view of the rightmost column;

[0045] Figure 5 yes Figure 1 Isolated view of the upper middle support rope limit base;

[0046] Figure 6 yes Figure 1 An independent view of the self-restoring buffer device;

[0047] Figure 7 Depend on Figure 1 The side view angle shows the protective effect of the easily repairable cantilever passive protection system of the present invention when intercepting falling rocks. DETAILED DESCRIPTION

[0048] The present invention will be further described in detail below with reference to specific embodiments, but the implementation manner of the present invention is not limited thereto.

[0049] like Figures 1 to 6 As shown, the present invention provides an easily repairable cantilever passive protection system, which is arranged above the protection target and includes a column 100, an upper support rope 200, a lower support rope 300 and a mesh 400.

[0050] There are at least two columns 100 , which are arranged in a spaced relationship in the transverse direction. The bottoms of the columns 100 are fixed on the mountain, and the tops extend to a side away from the mountain.

[0051] The upper support rope 200 is located above the column 100 and is arranged horizontally close to the mountain. The upper support rope 200 includes at least two upper support ropes 210 that are connected in sequence and can be detached from each other, wherein the ends of the upper support ropes 210 located on the left and right sides are fixed relatively to the mountain.

[0052] The lower support rope 300 is located near the top of the column 100 and is arranged horizontally. The lower support rope 300 includes at least two lower support ropes 310 that are detachably connected in sequence, wherein the ends of the lower support ropes 310 located on the left and right sides are fixed relative to the mountain.

[0053] The mesh 400 is a flexible metal mesh, which is arranged between the upper support rope 200 and the lower support rope 300. The upper side of the mesh 400 is connected to the upper support rope 200 in a detachable manner, and the lower side is also connected to the lower support rope 300 in a detachable manner; and the mesh 400 is inclined at a predetermined angle relative to the horizontal plane to form a slope that is not conducive to fallen rocks staying on the mesh 400.

[0054] The column 100 is a steel column, the main structure of which is welded from steel sections, and the bottom of the column 100 is anchored on the mountain through a column base 110 .

[0055] Among them, the above-mentioned end of the upper support rope 210 is relatively fixed to the mountain or the end of the lower support rope 310 is relatively fixed to the mountain, which usually means: the end of the upper support rope 210 or the lower support rope 310 is relatively fixed to the anchor point formed by the anchor rod, that is, the end of the upper support rope 210 or the lower support rope 310 can be directly connected to the top of the anchor rod, or it can be first connected to other components, and the other components are then connected to the top of the anchor rod. For example, the end of the upper support rope 210 or the lower support rope 310 is first connected to the buffer device, and the buffer device is then connected to the top of the anchor rod, wherein the buffer device plays an energy-consuming role and can reduce the peak impact force of the entire cantilever passive protection system. The anchor rod is a conventional setting in this field, which is anchored in the mountain and fixed relatively to the mountain to provide a fulcrum for other components (such as support ropes).

[0056] Preferably, see Figure 1 The cantilever passive protection system of the present invention also includes longitudinal support ropes 500. The number of these longitudinal support ropes 500 matches the number of the columns 100, with each longitudinal support rope 500 corresponding to a respective column 100. One end of each longitudinal support rope 500 is connected to the top of the column 100, and the other end extends upward at an angle to the vicinity of the upper support rope 200 and is fixed relative to the mountain (i.e., the anchor point formed by the anchor rod is fixed relative to the mountain). Simultaneously, the left and right sides of the mesh 400 are each detachably connected to two longitudinal support ropes 500.

[0057] Also, see Figure 1The columns 100 are also connected to pull ropes 810, side pull ropes 820, and inter-column pull ropes 830. The number of pull ropes 810 is the same as the number of columns 100, and each pull rope 810 corresponds to each column 100. One end of the pull rope 810 is connected to the top of the column 100, and the other end extends downward and is fixed relative to the mountain (that is, it is fixed relative to the mountain through the anchor point formed by the anchor rod). See Figure 4 or Figure 7 The number of the side stretchers 820 is usually two, and the two side stretchers 820 correspond to the columns 100 on both sides respectively. One end of the side stretcher 820 is connected to the top of the column 100, and the other end is inclined and extends to the left or right side of the column 100 and is fixed relative to the mountain (that is, the anchor point formed by the anchor rod is fixed relative to the mountain), see Figure 1 、 Figure 4 or Figure 7 The inter-column pull rope 830 is tightened and connected between the tops of the columns 100 .

[0058] Thus, the vertical support rope 500, the lower pull rope 810, the side tension rope 820 and the inter-column pull rope 830 act on the vertical and horizontal directions of the column 100, so that the column 100 is evenly stressed in all directions and is stable.

[0059] In some embodiments, see Figure 1 , the mesh 400 includes an annular net 410 and a grille net 420. The upper side of the annular net 410 is connected to the upper support rope 200 by a number of shackles (not shown in the figure) to achieve the above-mentioned detachable connection. Similarly, the lower side of the annular net 410 is also connected to the lower support rope 300 by a number of shackles (not shown in the figure), and the left and right sides are also detachably connected to the two longitudinal support ropes 500 by shackles (not shown in the figure) to achieve the above-mentioned detachable connection. The grille net 420 is sewn with wires above the annular net 410. The mesh of the grille net 420 is smaller than the mesh of the annular net 410 and is used to intercept small pieces of falling rocks. Among them, the above-mentioned shackles are commonly used components in this field.

[0060] Preferably, the annular network 410 can be formed by connecting two or more sub-annular networks (not shown in the figure) in sequence. When connected, the sub-annular networks are connected by a number of shackles to achieve detachable connection.

[0061] In some embodiments, see Figure 2The upper support rope 210 is formed with a first connecting structure 211 at the end connected to the adjacent upper support rope 210. The first connecting structures 211 at the head and tail of the two adjacent upper support ropes 210 are detachably connected through a first connecting member 220. In addition, the upper support rope 200 also includes an upper support rope branch 230. Each end of the upper support rope branch 230 is formed with a third connecting structure 231. One end of the upper support rope branch 230 is detachably connected to the first connecting member 220 through one of the third connecting structures 231, and the other end is fixed to the mountain through the other third connecting structure 231 (that is, fixed to the mountain through the anchor point formed by the anchor rod).

[0062] See also Figure 3 The lower support rope 310 is formed with a second connecting structure 311 at the end connected to the adjacent lower support rope 310. The second connecting structures 311 at the head and tail of the two adjacent lower support ropes 310 are detachably connected via a second connecting member 320. In addition, the lower support rope 300 also includes a lower support rope branch 330. Each end of the lower support rope branch 330 is formed with a fourth connecting structure 331. One end of the lower support rope branch 330 is detachably connected to the second connecting member 320 via one of the fourth connecting structures 331, and the other end is connected to the top of the column 100 via another fourth connecting structure 331.

[0063] Preferably, the first connecting structure 211, the second connecting structure 311, the third connecting structure 231 and the fourth connecting structure 331 are all aluminum rope rings or rope clips. The first connecting member 220 and the second connecting member 320 are both shackles.

[0064] In the above-mentioned connection structure, the entire upper support rope 200 is formed by connecting multiple upper support ropes 210, and the first connection structure 211 between each upper support rope 210 is detachably connected through the first connection member 220, so each upper support rope 210 can be individually removed and replaced. Therefore, when the upper support rope 200 is damaged by the impact of falling rocks, only one or more damaged upper support ropes 210 need to be replaced, and other undamaged upper support ropes 210 do not need to be replaced. Similarly, when the lower support rope 300 is damaged by the impact of falling rocks, only one or more damaged lower support ropes 310 need to be replaced, and other undamaged lower support ropes 310 do not need to be replaced.

[0065] In some embodiments, the cantilever passive protection system of the present invention further includes an upper support rope limiting base 600. Figure 5The upper support rope limiting base 600 has a limiting space 6a, which is open on both sides. The upper side surface 631, the lower side surface 641 and the bottom side surface 621 close to the mountain of the limiting space 6a are all curved surfaces, and a detachable limiting component 650 with the same curved surface is provided on the side of the limiting space 6a away from the bottom side surface 621.

[0066] Specifically, the upper support rope limiting base 600 includes a bottom plate 610, a first curved plate 620, a second curved plate 630, a third curved plate 640 and the limiting component 650. The bottom plate 610 is used to be fixed to the mountain. The first curved plate 620 is fixed to the side of the bottom plate 610 facing away from the mountain, and its curved arch surface is arched toward the side facing away from the mountain to form the bottom side surface 621. The second curved plate 630 is located on the upper side of the first curved plate 620 and is welded and fixed to the bottom plate 610, and its curved arch surface is arched downward to form the upper side surface 631. The third curved plate 640 is located on the lower side of the first curved plate 620 and is welded and fixed to the bottom plate 610, and its curved arch surface is arched upward to form the lower side surface 641. The limiting component 650 is a cylindrical latch, which is vertically and detachably inserted into the openings of the second curved plate 630 and the third curved plate 640 on a side away from the first curved plate 620 .

[0067] When in use, the upper support rope limiting base 600 is fixed at a predetermined position on the mountain, and the upper support rope 200 passes through the limiting space 6a horizontally. The upper support rope 200 is restricted by the limiting component 650 and will be confined within the limiting space 6a, so that the mesh 400 can be as close to the mountain as possible, avoiding the gap between the upper support rope 200 and the mountain being too large, resulting in the situation where the falling rocks are not blocked and fall from the gap. In particular, in order to adapt to the undulations of the mountain, an upper support rope limiting base 600 is added when the upper support rope 200 laying point passes through a gully or a protruding position of the mountain, which can ensure that the mesh 400 is close to the mountain without leaving any protective gaps. For example, when an upper support rope limiting base 600 is added at a gully, the limiting component 650 of the upper support rope limiting base 600 can play a role in pulling the upper support rope 200 toward one side of the mountain, so that the upper support rope 200 is close to the mountain and avoids the appearance of excessive gaps; when an upper support rope limiting base 600 is added at a protruding position of the mountain, the upper support rope 200 can be attached to the bottom side surface 621 of the upper support rope limiting base 600. Since the bottom side surface 621 is an arc-shaped surface, compared with the upper support rope 200 being directly attached to the protruding mountain, wear on the upper support rope 200 can be avoided.

[0068] In some embodiments, the upper support rope 200 and / or the lower support rope 300 are equipped with a self-restoring buffer device 700. One end of the self-restoring buffer device 700 is connected to the end of the upper support rope 210 or the lower support rope 310 located at the endmost side, and the other end is fixed relative to the mountain through a connecting rope (i.e., fixed relative to the mountain through the anchor point formed by the anchor rod).

[0069] For details, see Figure 6 The self-restoring buffer device 700 includes a cylinder 710, a piston rod 720, a spring 730 and an elastic buffer material 740. One end of the cylinder 710 is open and the other end is closed. A first lug 750 is provided on the outside of the closed end of the cylinder 710. A portion of the piston rod 720 is located outside the cylinder 710, and the other portion is inserted into the cylinder 710 from the open end of the cylinder 710. A second lug 760 is provided on the end of the piston rod 720 located outside the cylinder 710, and a pull head 770 is provided on the end of the piston rod 720 inserted into the cylinder 710. The spring 730 is located in the cylinder 710 and is sleeved on the piston rod 720, and one end of the spring 730 is against the pull head 770, and the other end is against the end plate 780 at the open end of the cylinder 710. The elastic buffer material 740 is located inside the spring 730 and is mounted on the piston rod 720. The elastic buffer material 740 can be made of suitable materials currently available on the market. After being mounted on the piston rod 720, it can be compressed when subjected to the axial force exerted by the movement of the pull head 770, and can return to its original state after the axial force is removed. The first hanging lug 750 is relatively fixed to the mountain via the connecting rope (i.e., it is relatively fixed to the mountain via the anchor point formed by the anchor rod), and the second hanging lug 760 is connected to the end of the upper support rope 210 or the lower support rope 310 located at the extreme end.

[0070] When mesh 400 intercepts a falling rock, the impact of the rockfall causes the upper support rope 210 or lower support rope 310 at the extreme end to pull the pull head 770 through the second lug 760. The movement of the pull head 770 forces the spring 730 and elastic buffer material 740 to repeatedly compress and recover, thereby achieving a buffering effect. Therefore, the provision of the self-recovering buffer device 700 can reduce the peak impact force experienced by the entire cantilever passive protection system, protecting system components and increasing their service life.

[0071] The installation process of the cantilever passive protection system of the present invention is roughly as follows:

[0072] First, the column 100 is fixed to the mountain through the column base 110 at the bottom. At the same time, the longitudinal support rope 500, the lower pull rope 810, the side tension rope 820 and the inter-column pull rope 830 are installed; Figure 1 There are four columns 100 shown. During installation, after the column bases 110 of the four columns 100 are fixed to the mountain, the inter-column pull ropes 830 are connected between the tops of adjacent columns 100. At the same time, the longitudinal support ropes 500 and the lower pull ropes 810 are connected to the top of each column 100, and the ends of the longitudinal support ropes 500 and the lower pull ropes 810 away from the column 100 are connected to the anchor rods pre-anchored in the mountain. At the same time, side tension ropes 820 are connected to the tops of the left and right columns 100, and the ends of the side tension ropes 820 away from the column 100 are connected to the anchor rods pre-anchored in the mountain. Finally, ensure that each of the above ropes is taut and the force is balanced so that the column 100 is evenly stressed in four directions and is stable.

[0073] Afterwards, the upper support rope 200 and the lower support rope 300 are laid out and installed. Among them, the upper support rope 200 and the lower support rope 300 are both composed of multiple sub-ropes. Therefore, before installing the upper support rope 200 and the lower support rope 300, it is necessary to first connect the upper support ropes 210 end to end and the lower support ropes 310 end to end, and then lay out the connected upper support ropes 200 and the lower support ropes 300; during installation, the upper support rope 200 is located above the column 100 and arranged horizontally, the ends of the upper support ropes 210 on the left and right sides are connected to the anchor rods pre-anchored in the mountain, the middle section of the lower support rope 300 is arranged along the top of each column 100, and the lower support ropes 310 on the left and right sides are inclined toward the mountain and their ends are connected to the anchor rods pre-anchored in the mountain;

[0074] Then, install the upper support rope branch rope 230 and the lower support rope branch rope 330; when installing, see Figure 2 One end of the upper support rope 230 is connected to the first connecting member 220 between two adjacent upper support ropes 210, and the other end is connected to the anchor point of the longitudinal support rope 500; see Figure 3 , one end of the lower support rope branch 330 is connected to the second connecting member 320 between the two adjacent lower support ropes 310, and the other end is connected to the top of the column 100; after installation, each connection node of the upper support rope 200 and the lower support rope 300 (that is, the position where the upper support rope 210 is connected end to end or the position where the lower support rope 310 is connected end to end) is fixed, so the entire upper support rope 200 and the entire lower support rope 300 have multiple points connected to different anchor points, thereby making the connection between the upper support rope 200, the lower support rope 300 and the mountain or the column 100 more stable;

[0075] Afterwards, the mesh 400 is installed. During installation, the grille mesh 420 is installed on the ring mesh 410 by tying and sewing. The upper side, lower side, left and right sides of the ring mesh 410 are connected to the upper support rope 200, the lower support rope 300, and the longitudinal support rope 500 respectively by shackles. When the ring mesh 410 is composed of two or more sub-ring meshes, each sub-ring mesh is connected by a plurality of shackles.

[0076] If it is necessary to install the upper support rope limiting base 600, the upper support rope limiting base 600 can be installed at a predetermined position on the mountain, and the upper support rope 200 can be allowed to pass through the limiting space 6a of the upper support rope limiting base 600; if it is necessary to install the self-recovering buffer device 700, one end of the self-recovering buffer device 700 is connected to the end of the upper support rope 210 or the lower support rope 310 located at the end side, and the other end is connected to the anchor rod pre-anchored in the mountain through a connecting rope.

[0077] The cantilever passive protection system of the present utility model has the following beneficial effects:

[0078] The system forms a stable, elastic and downward-sloping protective surface through the columns 100, the pull ropes, the support ropes and the flexible metal mesh 400, thereby achieving a self-cleaning effect of the passive protective net; that is, the tensioning plane formed by the fine-pore grid mesh 420 can prevent small rocks from falling into the protection area, and at the same time is more conducive to the sliding and ejection of low-speed rocks, reducing the accumulation of rocks. If a large-scale rock falls on the tensioning plane formed by the grid mesh 420, the ring mesh 410 can also intercept and eject it (see Figure 7 );

[0079] Since the upper support rope 200 is formed by connecting a plurality of upper support ropes 210, and the lower support rope 300 is formed by connecting a plurality of lower support ropes 310, even if a portion of the support rope is broken, the remaining system can be kept relatively intact and will not fail as a whole. During repair, the repair effect can be achieved by replacing a portion of the support rope without removing the entire system, thus saving repair costs, reducing repair workload, shortening repair time, and achieving the purpose of improving repair efficiency.

[0080] Similarly, since the mesh and each supporting rope are connected in a detachable manner, and an integral mesh can be composed of multiple sub-meshes detachably connected (for example, the above-mentioned ring mesh 410 is composed of multiple sub-ring meshes detachably connected), when a sub-mesh is damaged, it can be easily removed and then replaced, which can also save repair costs, reduce repair workload, and shorten repair time;

[0081] By adding the self-recovering buffer device 700, the peak impact force on the entire system is reduced, thereby protecting the system components and increasing their service life.

[0082] By setting the upper support rope limiting base 600, the fit between the system and the mountain can be improved, ensuring that the mesh 400 can be close to the mountain without leaving any protective gaps.

[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An easily repairable cantilever passive protection system, deployed above the protected target, characterized in that: It comprises a column (100), an upper support rope (200), a lower support rope (300) and a mesh (400); The number of the columns (100) is at least two, and the columns (100) are arranged in sequence and spaced apart in the transverse direction; and the bottoms of the columns (100) are fixed on the mountain, and the tops extend toward a side away from the mountain; The upper support rope (200) is located above the column (100) and is arranged horizontally close to the mountain. The upper support rope (200) includes at least two upper support ropes (210) that are connected in sequence and can be detached from each other. The ends of the upper support ropes (210) on the left and right sides are fixed relative to the mountain. The lower support rope (300) is located near the top of the column (100) and is arranged in the transverse direction. The lower support rope (300) includes at least two lower support ropes (310) that are detachably connected in sequence, wherein the ends of the lower support ropes (310) located on the left and right sides are fixed relative to the mountain. The mesh (400) is arranged between the upper supporting rope (200) and the lower supporting rope (300); the upper side of the mesh (400) is connected to the upper supporting rope (200) in a detachable manner, and the lower side is also connected to the lower supporting rope (300) in a detachable manner; and the mesh (400) is inclined at a predetermined angle relative to the horizontal plane to form a slope that is not conducive to fallen rocks staying on the mesh (400).

2. The easily repairable cantilever passive protection system according to claim 1, characterized in that: Also included is a longitudinal support rope (500); The number of the longitudinal support ropes (500) is consistent with the number of the columns (100), and each longitudinal support rope (500) corresponds to each column (100), and one end of the longitudinal support rope (500) is connected to the top of the column (100), and the other end extends obliquely upward to the vicinity of the upper support rope (200) and is fixed relative to the mountain; The left and right sides of the mesh (400) are respectively connected to the two longitudinal support ropes (500) in a detachable manner.

3. The easily repairable cantilever passive protection system according to claim 1 or 2, characterized in that: The upper supporting rope (210) is formed with a first connecting structure (211) at the end connected to the adjacent upper supporting rope (210), and the first connecting structures (211) at the head and tail of two adjacent upper supporting ropes (210) are detachably connected via a first connecting member (220); The lower supporting rope (310) is provided with a second connection structure (311) at the end portion connected to the adjacent lower supporting rope (310), and the second connection structures (311) at the head and tail of the two adjacent lower supporting ropes (310) are detachably connected via a second connection member (320).

4. The easily repairable cantilever passive protection system according to claim 3, characterized in that: The upper support rope (200) further includes an upper support rope split rope (230), and the lower support rope (300) further includes a lower support rope split rope (330); A third connection structure (231) is formed at each end of the upper support rope branch (230); one end of the upper support rope branch (230) is detachably connected to the first connection member (220) through one of the third connection structures (231), and the other end is fixed relative to the mountain through another third connection structure (231); A fourth connecting structure (331) is formed at each end of the lower supporting rope branch (330), one end of the lower supporting rope branch (330) is detachably connected to the second connecting member (320) through one of the fourth connecting structures (331), and the other end is connected to the top of the column (100) through another fourth connecting structure (331).

5. The easily repairable cantilever passive protection system according to claim 4, characterized in that: The first connecting structure (211), the second connecting structure (311), the third connecting structure (231) and the fourth connecting structure (331) are all aluminum rope rings or rope clamps.

6. The easily repairable cantilever passive protection system according to claim 1 or 2, characterized in that: Also included is an upper support rope limiting base (600); The upper support rope limiting base (600) has a limiting space (6a), the left and right sides of the limiting space (6a) are open, the upper side surface (631), the lower side surface (641) and the bottom side surface (621) close to the mountain of the limiting space (6a) are all arc-shaped surfaces, and a detachable limiting component (650) having the same arc-shaped surface is provided on the side of the limiting space (6a) away from the bottom side surface (621); When the upper support rope limiting base (600) is fixed at a predetermined position on the mountain, the upper support rope (200) is restricted by the limiting component (650) and is confined within the limiting space (6a) to be close to the mountain.

7. The easily repairable cantilever passive protection system according to claim 6, characterized in that: The upper support rope limiting base (600) comprises a bottom plate (610), a first curved plate (620), a second curved plate (630), a third curved plate (640), and the limiting component (650); The bottom plate (610) is used to be fixed to the mountain; the first curved plate (620) is fixed to the side of the bottom plate (610) facing away from the mountain, and its curved arch surface is arched toward the side facing away from the mountain to form the bottom side surface (621); the second curved plate (630) is fixed to the upper side of the first curved plate (620), and its curved arch surface is arched downward to form the upper side surface (631); the third curved plate (640) is fixed to the lower side of the first curved plate (620), and its curved arch surface is arched upward to form the lower side surface (641); the limiting component (650) is a cylindrical pin, which is vertically detachably inserted into the openings of the second curved plate (630) and the third curved plate (640) on the side away from the first curved plate (620).

8. The easily repairable cantilever passive protection system according to claim 1 or 2, characterized in that: The upper support rope (200) and / or the lower support rope (300) are equipped with a self-recovering buffer device (700); One end of the self-restoring buffer device (700) is connected to the end of the upper supporting rope (210) or the lower supporting rope (310) located at the endmost side, and the other end is fixed relative to the mountain through a connecting rope.

9. The easily repairable cantilever passive protection system according to claim 8, characterized in that: The self-restoring buffer device (700) comprises a cylinder (710), a piston rod (720), a spring (730) and an elastic buffer material (740); One end of the cylinder (710) is open and the other end is closed, and a first hanging ear (750) is provided on the outer side of the closed end of the cylinder (710); A portion of the piston rod (720) is located outside the cylinder (710), and the other portion is inserted into the cylinder (710) from the open end of the cylinder (710); a second hanging ear (760) is provided at the end of the piston rod (720) located outside the cylinder (710); a pull head (770) is provided at the end of the piston rod (720) inserted into the cylinder (710); The spring (730) is located in the cylinder (710) and is sleeved on the piston rod (720), and one end of the spring (730) is against the pull head (770), and the other end is against the end plate (780) at the open end of the cylinder (710); The elastic buffer material (740) is located inside the spring (730) and is sleeved on the piston rod (720); The first hanging lug (750) is fixed relative to the mountain through the connecting rope, and the second hanging lug (760) is connected to the end of the upper supporting rope (210) or the lower supporting rope (310) located at the endmost side.

10. The easily repairable cantilever passive protection system according to claim 2, characterized in that: The mesh (400) includes a ring mesh (410) and a grid mesh (420); The upper side of the annular net (410) is detachably connected to the upper support rope (200) via a shackle, the lower side is detachably connected to the lower support rope (300) via a shackle, and the left and right sides are respectively detachably connected to the two longitudinal support ropes (500) via a shackle; the grille net (420) is fixed above the annular net (410).

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