Anchoring structure for bottom cable of pedestrian cableway bridge

Abstract

The invention relates to an anchoring structure of a pedestrian cableway bridge bottom cable, and belongs to the field of bridge engineering. The anchoring structure of the pedestrian cableway bridge bottom cable comprises a bottom cable, anchor benches are arranged at the two ends of the bottom cable, two parallel threaded anchor rods are anchored on the side walls, facing the bottom cable, of the anchor benches, and a cross beam capable of being adjusted in the axis direction of the threaded anchor rods is erected between the two threaded anchor rods. The axis of the cross beam is perpendicular to the length direction of the bottom cable, and the end of the bottom cable is detachably connected with the cross beam. The anchoring device and the adjusting device of the bottom cable are integrated, the sag and the tension of the bottom cable can be adjusted by adjusting the height of the cross beam on the threaded anchor rod, and the device is simple in structure, high in reliability and convenient to use.

Description

Technical Field

[0001] The invention relates to the field of bridge engineering, in particular to an anchoring structure for a bottom cable of a pedestrian cableway bridge. Background Art

[0002] A cableway bridge is a flexible cable system bridge that uses the bottom cable that bears tension as the main load-bearing component and anchors the bottom cable to the bridge abutments on both sides. The bottom cable is generally made of high-strength steel wire ropes, steel strands or parallel steel wire bundles with strong tensile strength. It is widely used in mountainous areas and landscape bridges due to its advantages such as low investment, fast erection, simple construction and large span.

[0003] For small and medium-span pedestrian bridges in scenic areas, considering cost factors, high-strength steel wire ropes are mostly used for bottom cables. Steel wire ropes are generally connected to the abutments through cable saddles, connectors, tensioners, and anchor rods. There are three types of commonly used bottom cable anchoring structures, each with its own advantages and disadvantages. The first type is to anchor the steel plate to the anchor platform with anchor bolts, set holes on the steel plate, pass through the pin shaft, connect the steel plate to one side of the bottom cable adjuster through the pin shaft, and connect the other side of the bottom cable adjuster to the bottom cable anchor head. This connection method has a complex structure and complex construction steps, requires a large number of welded steel plates, and has a large maintenance workload in the future. The second type is to pre-embed a steel pipe in the abutment, commonly known as the "ground cow", one end of the steel wire rope is wrapped around the "ground cow" and clamped with a rope clip, the other end of the steel wire rope is connected to the tension adjuster, and the tension adjuster is then connected to the bottom cable. This connection structure requires a separate wire rope tension adjuster. In addition, the force of the "ground cow" is unknown and the structure is complex. The third method is that one end of the wire rope is anchored into the shore rock or cable platform, and the other end of the wire rope is connected to the tension adjuster, and the tension adjuster is connected to the bottom cable. A wire rope tension adjuster is also required.

[0004] In summary, the disadvantages of the existing bottom cable anchoring structure are: complex structure, high cost, large maintenance workload, and low reliability. In view of this, it is necessary to provide a bottom cable anchoring structure that is easy to adjust, simple in structure, safe and reliable. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a bottom cable anchoring structure which is easy to adjust, simple in structure, safe and reliable.

[0006] The technical solution of the present invention for solving the above technical problems is as follows: an anchoring structure for a bottom cable of a pedestrian cableway bridge, comprising a bottom cable, anchor platforms are arranged at both ends of the bottom cable, two parallel threaded anchor rods are anchored on a side wall of the anchor platform facing the bottom cable, a crossbeam which can be adjusted along the axial direction of the threaded anchor rods is arranged between the two threaded anchor rods, the axis of the crossbeam is perpendicular to the length direction of the bottom cable, and the end of the bottom cable is detachably connected to the crossbeam.

[0007] The beneficial effects of the present invention are as follows: 1. The anchoring and adjusting devices of the bottom cable are integrated into one body, and the operator can change the verticality and tension of the bottom cable by adjusting the height of the crossbeam on the threaded anchor rod, which is easy to operate.

[0008] 2. The anchoring structure of the present invention has a simple structure, high reliability and is easy to use.

[0009] 3. The invention has low cost, broad market prospects and is suitable for large-scale promotion and application.

[0010] Based on the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, a cable platform is provided below the bottom cable, a roller is horizontally rotatably mounted on the top surface of the cable platform, an outer peripheral wall of the roller is in contact with the bottom cable, and an axis of the roller is perpendicular to the length direction of the bottom cable.

[0012] The beneficial effect of adopting the above further scheme is that the roller fits the bottom cable to realize the turning of the bottom cable and provide support for the bottom cable. There is no sliding between the roller and the bottom cable, which can ensure the life of the bottom cable.

[0013] Furthermore, the outer wall of the rotating roller is galvanized.

[0014] The beneficial effects of adopting the above further solution are: anti-rust and anti-corrosion, and extended service life.

[0015] Furthermore, a steel mesh is arranged in the anchor platform, and one end of the two threaded anchor rods located in the anchor platform passes through the steel mesh.

[0016] The beneficial effects of adopting the above further solution are: improving the concrete crack resistance when the anchor platform is subjected to stress, and improving the anchoring force of one end of the two threaded anchor rods located in the anchor platform.

[0017] Furthermore, the steel mesh has two layers which are parallel to each other.

[0018] The beneficial effect of adopting the above further solution is: further improving the physical properties of the anchor platform.

[0019] Furthermore, anchor plates are fixedly installed on the ends of the two threaded anchor rods located in the anchor platform.

[0020] The beneficial effects of adopting the above further solution are: improving the anchoring effect of the threaded anchor rod, preventing it from being pulled out, having a simple structure and controllable costs.

[0021] Furthermore, both ends of the bottom rope are fixed into a ring shape by a plurality of rope clips, a heart-shaped ring is installed on the inner side of the ring, and the heart-shaped ring is sleeved on the crossbeam.

[0022] The beneficial effects of adopting the above further solution are: the connection method between the bottom cable and the cross beam is simple and easy to disassemble, and the heart-shaped ring protects the bottom cable and reduces wear.

[0023] Furthermore, the number of the rope clamps is at least five.

[0024] The beneficial effect of adopting the above further solution is: ensuring safety performance and preventing the bottom rope from being disengaged.

[0025] Furthermore, through holes are provided on the outer peripheral walls of the crossbeam near both ends, the axes of the through holes are perpendicular to the crossbeam, and the two through holes are respectively sleeved on the two threaded anchor rods and fixed by nuts.

[0026] The beneficial effects of adopting the above further solution are: the structural strength of the connection is ensured by adopting the through hole form, and the height is adjusted by the nut, which is simple and convenient.

[0027] Furthermore, a wrapping layer is provided on the outer peripheral wall of the threaded anchor rod close to the surface of the anchor platform.

[0028] The beneficial effect of adopting the above further solution is: reducing the bonding force between the threaded anchor rod and the surface of the anchor base, so that the force is better transmitted to the inside of the anchor base. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an overall schematic diagram of the present invention.

[0030] Figure 2 It is a schematic diagram of the bottom cable of the present invention.

[0031] Figure 3 It is a schematic diagram of the crossbeam of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. Bottom cable; 2. Anchor platform; 3. Threaded anchor rod; 4. Nut; 5. Crossbeam; 6. Cable platform; 7. Roller; 8. Steel mesh; 9. Anchor plate; 10. Rope clamp; 11. Heart-shaped ring; 12. Through hole. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] Example 1

[0036] like Figures 1 to 3As shown, an anchoring structure of the bottom cable of a pedestrian cableway bridge includes a bottom cable 1, anchor platforms 2 are arranged at both ends of the bottom cable 1, two parallel threaded anchor rods 3 are anchored on a side wall of the anchor platform 2 facing the bottom cable 1, a crossbeam 5 adjustable along the axial direction of the threaded anchor rod 3 is arranged between the two threaded anchor rods 3, the axis of the crossbeam 5 is perpendicular to the length direction of the bottom cable 1, and the end of the bottom cable 1 is detachably connected to the crossbeam 5.

[0037] In this embodiment, the several steel cables at the bottom of the pedestrian cableway bridge for bearing the weight are called bottom cables 1. Anchor platforms 2 are provided at both ends of each bottom cable 1. Threaded anchor rods 3 are anchored in the anchor platforms 2. The axes of the threaded anchor rods 3 are perpendicular to the side walls of the anchor platforms 2.

[0038] Both ends of the crossbeam 5 are mounted on the two threaded anchor rods 3. The crossbeam 5 can be adjusted along the axis direction of the threaded anchor rods 3. When the bottom cable 1 becomes loose or needs to be adjusted, the height position of the crossbeam 5 is moved to tighten the bottom cable 1 or change the tension.

[0039] Specific embodiment: A cableway bridge, the total length of the bridge is 65m, of which the abutment is 6.5m long, gravity abutment, the bridge deck is 3.08m wide, 11 bottom cables 1, of which 9 are load-bearing cables and 2 are stabilizing cables, and 5cm thick fir boards are laid on the bottom cables 1. The bridge crosses a mountain river, connects a natural village with a highway, and allows villagers to travel by foot, electric bicycles and tricycles.

[0040] The bottom cable 1 is made of steel wire rope with the specification of (6×19S+IWR steel wire rope core) and a nominal diameter of 40mm; the threaded anchor rod 3 is made of prestressed threaded steel bar with a diameter of 32mm and a strength grade of 930MPa; the nut 4 is a nut matched with the prestressed threaded steel bar; the crossbeam 5 is made of A5 steel with a diameter of 120mm and a length of 56cm, and the through holes 12 at both ends have a diameter of 34mm to ensure strength.

[0041] The threaded anchor rod 3 is 100 cm long, 60 cm is buried in the anchor platform 2, and 40 cm is exposed. The anchor plate 9 buried at one end of the anchor platform 2 is 60 cm long, 12 cm wide, 12 mm thick, and has a strength grade of Q235.

[0042] The threaded anchor rod 3 is buried in the anchor platform 2 and wrapped with a PVC film 10 cm close to the anchor platform wall to reduce the bonding force between the threaded anchor rod 3 and the concrete on the surface of the anchor platform 2 and improve the crack resistance of the concrete on the surface of the anchor platform 2.

[0043] The roller 7 is made of a steel pipe with an outer diameter of 140 mm and a wall thickness of 6 mm. The inside of the roller 7 is poured with concrete and the outside is galvanized.

[0044] There are two layers of steel mesh 8, the first layer is 5 cm away from the outer wall of the anchor platform 2, the distance between the two layers is 15 cm, the diameter of the steel bar is 18 mm, and the spacing between the steel bars in the steel mesh 8 is 10 cm.

[0045] The bottom cable 1 of the cableway bridge is made of high-strength steel wire rope. The tension of the bottom cable 1 is relatively high, so the prestressed threaded steel bar of the same high strength is used as the threaded anchor rod 3; the prestressed threaded steel bar cannot be welded or bent due to its high carbon content, so an anchor plate 9 is set at the end to anchor the prestressed threaded steel bar, and a crossbeam 5 that can be adjusted along the axis direction of the threaded anchor rod 3 is set between the two threaded anchor rods 3, and the bottom cable 1 is connected to the crossbeam 5;

[0046] Prestressed threaded steel bars, also known as precision-rolled threaded steel bars, are straight bars with large diameter, high strength and high dimensional accuracy that are rolled with discontinuous external threads. The steel bars can be connected with connectors with internal threads or anchored with threaded nuts at any cross-section.

[0047] In addition, both ends of the cross beam 5 can be fixed with buckles, and then fixed to the threaded anchor rod 3 through detachable buckles, or any other fixing method with adjustable position can be used.

[0048] Example 2

[0049] like Figure 1 As shown, preferably, on the basis of Example 1, a cable platform 6 is provided below the bottom cable 1, and a roller 7 is horizontally rotatably installed on the top surface of the cable platform 6, the outer peripheral wall of the roller 7 is in contact with the bottom cable 1, and the axis of the roller 7 is perpendicular to the length direction of the bottom cable 1.

[0050] The beneficial effect of adopting the preferred solution in the above embodiment is that the roller 7 fits the bottom cable 1 to realize the turning of the bottom cable 1 and provide support for the bottom cable 1. There is no sliding between the roller 7 and the bottom cable 1, which can ensure the life of the bottom cable 1.

[0051] Preferably, the outer wall of the rotating roller 7 is galvanized.

[0052] The beneficial effects of adopting the preferred solution in the above embodiment are: anti-rust and anti-corrosion, and extended service life.

[0053] Specific principle: In order to ensure that the cableway bridge and the abutment are at the same elevation, a saddle is required to be set at the abutment to bend the bottom cable 1 downward and anchor it; in this embodiment, a groove is opened on the top of the cable abutment 6, and the roller 7 is rotated and placed in the groove. The roller 7 is called a saddle and is used to smoothly adjust the verticality of the bottom cable 1.

[0054] When the bottom cable 1 is bearing a load or needs to be adjusted, the bottom cable 1 may move laterally. The roller 7 cooperates with the movement of the bottom cable 1 by rolling, thereby reducing friction and protecting the bottom cable 1.

[0055] On the basis of this embodiment, the roller 7 is a steel pipe filled with concrete to increase the quality and physical properties. The diameter of the steel pipe is 4-5 times the diameter of the bottom cable 1, and the depth of the groove is 1 / 4-1 / 3 of the diameter of the roller 7.

[0056] Example 3

[0057] like Figure 1 As shown, preferably, on the basis of Embodiment 1-2, a steel mesh 8 is provided in the anchor platform 2, and one end of the two threaded anchor rods 3 located in the anchor platform 2 passes through the steel mesh 8.

[0058] The beneficial effects of adopting the preferred solution in the above embodiment are: improving the concrete crack resistance when the anchor base 2 is subjected to stress, and improving the anchoring force of one end of the two threaded anchor rods 3 located in the anchor base 2.

[0059] Preferably, the steel mesh 8 has two layers which are parallel to each other.

[0060] The beneficial effects of adopting the preferred solution in the above embodiment are: further improving the crack resistance of the anchor platform 2 and improving the pull-out bearing capacity of the threaded anchor rod 3.

[0061] In this embodiment, two steel meshes 8 are built in when pouring the anchor 2. The steel meshes 8 are formed by overlapping steel bars with a diameter of 18 mm. The mesh length is 60 cm and the width is 60 cm. The two steel meshes 8 are arranged in parallel and 15 cm apart. The steel mesh 8 close to the surface of the anchor 2 is 5 cm away from the surface of the anchor 2. When the threaded anchor 3 is stressed, the crack resistance of the concrete on the surface of the anchor 2 is improved, and the pull-out bearing capacity of the threaded anchor 3 is also improved.

[0062] Specific principle: The two threaded anchor rods 3 transmit the tension from the bottom cable 1 to the anchor platform 2 through the bonding force between the two threaded anchor rods 3 and the anchoring force of the anchor plate 9; the concrete of the anchor platform 2 is subjected to a large tensile stress. An important feature of the mechanical properties of concrete is that it has strong compressive resistance and weak tensile resistance. Therefore, the steel mesh 8 is added to increase the upper limit of the tensile stress that the concrete of the anchor platform 2 can withstand.

[0063] Example 4

[0064] like Figure 1 As shown, preferably, on the basis of embodiments 1-3, anchor plates 9 are fixedly installed at the ends of the two threaded anchor rods 3 located in the anchor platform 2.

[0065] The beneficial effects of adopting the preferred solution in the above embodiment are: improving the anchoring effect of the threaded anchor rod 3, preventing it from being pulled out, having a simple structure and controllable costs.

[0066] In this embodiment, the two threaded anchor rods 3 use prestressed threaded steel bars. The prestressed threaded steel bars have a high carbon content and cannot be bent or welded. Holes are opened at both ends of the anchor plate 9. Both ends of the anchor plate 9 are sleeved on the two threaded anchor rods 3. Two nuts 4 are threadedly installed on the threaded anchor rods 3. The nuts 4 use matching nuts for prestressed concrete threaded steel bars. The anchor plate 9 is located between the two nuts 4.

[0067] If the above conditions are met, the tensile strength of the prestressed threaded anchor rod 3 can be fully utilized, that is, the prestressed threaded steel bar is tensioned, and the steel bar is broken instead of the concrete in the anchoring area being destroyed.

[0068] Example 5

[0069] like Figure 2 As shown, preferably, on the basis of embodiments 1-4, both ends of the bottom rope 1 are fixed into a ring shape by a plurality of rope clips 10, a heart-shaped ring 11 is installed on the inner side of the ring, and the heart-shaped ring 11 is sleeved on the crossbeam 5.

[0070] The beneficial effects of adopting the preferred solution in the above embodiment are: the connection method between the bottom cable 1 and the cross beam 5 is simple and easy to disassemble, and the heart-shaped ring 11 protects the bottom cable 1 and reduces wear.

[0071] Preferably, the number of the rope clamps 10 is at least five.

[0072] The beneficial effects of adopting the preferred solution in the above embodiment are: ensuring safety performance and preventing the bottom rope 1 from being disengaged.

[0073] Specifically, the heart-shaped ferrule 11 is also called a wire rope rigging ferrule. A rope groove is provided on the heart-shaped ferrule 11 for the rope end to be tied around to prevent the rope from excessive bending and wear, and the heart-shaped metal ring of other components can be connected.

[0074] According to the relevant safety operation specifications in the engineering field, the number of rope clamps 10 should be no less than 3-5, and the spacing between rope clamps 10 should be 5 times the diameter of the rope to enhance safety.

[0075] Example 6

[0076] like Figure 3 As shown, preferably, on the basis of embodiments 1-5, through holes 12 are opened on the outer peripheral walls of the beam 5 near both ends, the axis of the through holes 12 is perpendicular to the beam 5, and the two through holes 12 are respectively sleeved on the two threaded anchor rods 3 and fixed by nuts 4.

[0077] The beneficial effects of adopting the preferred solution in the above embodiment are: the structural strength of the connection is ensured by adopting the through hole 12, and the height of the crossbeam 5 is adjusted by the nut 4, thereby adjusting the verticality of the bottom cable 1, which is simple and convenient.

[0078] In this embodiment, the two through holes 12 are respectively sleeved on the two threaded anchor rods 3 and fixed by nuts 4 to achieve the connection between the threaded anchor rods 3 and the crossbeam 5. The verticality adjustment of the bottom cable 1 is achieved by twisting and adjusting the position of the nuts 4 on the two threaded anchor rods 3.

[0079] Specifically, the diameter of the through hole 12 is 2-3 mm larger than the diameter of the threaded anchor rod 3, so that the cross beam 5 can be slid up and down for adjustment. The nut 4 uses a matching nut for threaded steel bars for prestressed concrete. Two nuts 4 are threadedly installed on the threaded anchor rod 3, and the cross beam 5 is located between the two nuts 4. When the cross beam 5 needs to be adjusted, the nut 4 is turned to move the cross beam 5 up and down.

[0080] Example 7

[0081] like Figure 1 As shown, preferably, on the basis of embodiments 1-6, a wrapping layer is provided on the outer peripheral wall of the threaded anchor rod 3 close to the surface of the anchor platform 2.

[0082] The beneficial effect of adopting the preferred solution in the above embodiment is: reducing the adhesion force between the threaded anchor rod 3 and the surface of the anchor platform 2, so that the force is better transmitted to the inside of the anchor platform 2.

[0083] In this embodiment, the outer peripheral wall of the threaded anchor rod 3 located 10-15 cm above and below the surface of the anchor platform 2 is painted with asphalt or coated with plastic.

[0084] The specific principle is: the anchoring force of the threaded anchor rod 3 is composed of two parts, one is the bonding force between the prestressed threaded anchor rod 3 itself and the concrete, and the other is the anchoring force of the anchor plate 9.

[0085] When the threaded anchor rod 3 transmits the tension from the bottom cable 1 to the anchor base 2, it is first transmitted to the surface concrete of the anchor base 2 through the bonding force between the threaded anchor rod 3 and the concrete, and then transmitted to the internal concrete of the anchor base 2 through the anchor plate 9.

[0086] The threaded anchor rod 3 is made of high-strength steel bars, which bear large tensile forces and thus large tensile strains. The concrete on the surface of the anchor platform 2 cannot be protected by the steel mesh 8, which easily causes the concrete on the surface of the anchor platform 2 to crack, affecting the appearance and durability. A wrapping layer is provided on the outer peripheral wall of the threaded anchor rod 3 close to the surface of the anchor platform 2, which releases the bonding force between the threaded anchor rod 3 and the concrete on the surface of the anchor platform 2, so that the tensile force of the threaded anchor rod 3 is transmitted to the concrete inside the anchor platform 2.

[0087] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0088] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0089] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0090] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0092] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An anchoring structure for the bottom cable of a pedestrian cableway bridge, characterized in that: The invention comprises a bottom cable (1), both ends of which are provided with anchor platforms (2), two mutually parallel threaded anchor rods (3) are anchored on a side wall of the anchor platform (2) facing the bottom cable (1), a cross beam (5) which can be adjusted along the axis direction of the threaded anchor rod (3) is arranged between the two threaded anchor rods (3), the axis of the cross beam (5) is perpendicular to the length direction of the bottom cable (1), and the end of the bottom cable (1) is detachably connected to the cross beam (5).

2. The anchoring structure of the bottom cable of a pedestrian cableway bridge according to claim 1, characterized in that: A cable platform (6) is arranged below the bottom cable (1), and a roller (7) is horizontally rotatably mounted on the top surface of the cable platform (6), the outer peripheral wall of the roller (7) is in contact with the bottom cable (1), and the axis of the roller (7) is perpendicular to the length direction of the bottom cable (1).

3. The anchoring structure of the bottom cable of a pedestrian cableway bridge according to claim 2, characterized in that: The outer peripheral wall of the rotating roller (7) is galvanized.

4. The anchoring structure of the bottom cable of a pedestrian cableway bridge according to claim 1, characterized in that: A steel mesh (8) is arranged inside the anchor platform (2), and one end of the two threaded anchor rods (3) located inside the anchor platform (2) passes through the steel mesh (8).

5. The anchoring structure of the bottom cable of a pedestrian cableway bridge according to claim 4, characterized in that: The steel mesh (8) has two layers which are parallel to each other.

6. The anchoring structure of the bottom cable of a pedestrian cableway bridge according to claim 4, characterized in that: Anchor plates (9) are fixedly mounted on the ends of the two threaded anchor rods (3) located in the anchor platform (2).

7. The anchoring structure of the bottom cable of a pedestrian cableway bridge according to claim 1, characterized in that: Both ends of the bottom rope (1) are fixed into a ring shape by a plurality of rope clamps (10), and a heart-shaped ring (11) is installed inside the ring shape, and the heart-shaped ring (11) is sleeved on the crossbeam (5).

8. The anchoring structure of the bottom cable of a pedestrian cableway bridge according to claim 7, characterized in that: The number of the rope clamps (10) is at least five.

9. The anchoring structure of the bottom cable of a pedestrian cableway bridge according to any one of claims 1 to 8, characterized in that: Through holes (12) are provided on the outer peripheral walls of the crossbeam (5) near both ends. The axes of the through holes (12) are perpendicular to the crossbeam (5). The two through holes (12) are respectively sleeved on the two threaded anchor rods (3) and fixed by nuts (4).

10. The anchoring structure of the bottom cable of a pedestrian cableway bridge according to any one of claims 1 to 8, characterized in that: A wrapping layer is provided on the outer peripheral wall of the threaded anchor rod (3) close to the surface of the anchor platform (2).

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