Self-anchored suspension bridge catwalk

Abstract

The utility model provides a self-anchored suspension bridge catwalk which comprises a bearing cable, a cross beam and a catwalk surface layer are arranged on the bearing cable, a square timber step is arranged on the catwalk surface layer, a lower locking slot is formed in the square timber step, a limiting ring slot is formed in the slot wall of the lower locking slot, a bracket roller group with a base is arranged on the square timber step, and the bracket roller group is arranged on the base. An upper locking penetrating hole aligned with the lower locking inserting groove is formed in the base in a penetrating mode, and a roller set locking piece is arranged in the upper locking penetrating hole in a penetrating mode. The roller group locking piece comprises a locking socket, an upper locking convex plate, an inserting block sliding hole and a lower locking inserting block; the locking socket is provided with a socket inner groove, penetrates through the upper locking through hole and is inserted into the lower locking slot; the upper locking convex plate is arranged at the upper part of the outer side wall of the locking socket; the inserting block sliding hole is formed in the lower part of the outer side wall of the locking socket in a penetrating manner; and the insertion block push-pull assembly is arranged in the socket inner groove. According to the self-anchored suspension bridge catwalk, the square timber steps and the bracket roller sets are fixed through the roller set locking pieces, and the construction efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of suspension bridge construction, in particular to a self-anchored suspension bridge catwalk. Background Art

[0002] A self-anchored suspension bridge is a suspension bridge system that does not have a gravity anchor, but uses a stiffening beam end to anchor the main cable and bear the horizontal and vertical forces at the end of the main cable. The difference between it and a conventional anchored suspension bridge is that there is no anchor, and the stiffening beam bears the horizontal force of the main cable, which causes a large axial pressure on the main beam. Self-anchored suspension bridges have all the advantages of conventional anchored suspension bridges. They also use cables or chains that bear tension as the main load-bearing components. They are composed of cables, towers, cable saddles, anchors (beam end anchors, not ground anchors), hangers, bridge decks and other main components. The main load-bearing component is the cable, which mainly bears tension and is generally made of steel with high tensile strength (steel wire, steel strand, steel cable, etc.).

[0003] The catwalk is a temporary structure necessary for the construction of self-anchored suspension bridges. It is an aerial scaffolding for the construction of the cable system. It provides a construction operation platform and a transportation channel for materials and tools for the traction and erection of main cable strands, cable strand adjustment, main cable tightening, cable clamp and sling installation, main cable winding and coating protection.

[0004] The existing Chinese patent with authorization announcement number CN215482363U discloses a variable-length catwalk suitable for the construction of a single-column tower space cable bridge, including load-bearing cables, handrail cables, a catwalk surface layer, and a bracket roller group. Several load-bearing cables form a paving plane, the catwalk surface layer is laid on the load-bearing cables, and the bracket roller group is fixedly installed on the catwalk surface layer.

[0005] The above-mentioned prior art has the following defects: the existing bracket roller group is usually fixed to the catwalk surface layer by bolts or U-shaped bolts. During construction, workers need to install the screw rod first and then the nut, which leads to low construction efficiency. Utility Model Content

[0006] The problem to be solved by the utility model is to provide a self-anchored suspension bridge catwalk in view of the above-mentioned deficiencies existing in the prior art, which solves the technical problem of low construction efficiency existing in the prior art.

[0007] The above-mentioned utility model object of the utility model is achieved through the following technical scheme: a self-anchored suspension bridge catwalk, comprising a load-bearing cable, a crossbeam and a catwalk surface layer located between adjacent crossbeams are arranged on the load-bearing cable, a square wooden step is arranged on the catwalk surface layer, a lower locking slot is arranged on the top surface of the square wooden step, a limiting ring groove is arranged on the groove wall of the lower locking slot, a bracket roller group with a base is arranged on the square wooden step, an upper locking through hole is penetrated on the base and aligned with the lower locking slot, and a roller group locking piece is penetrated in the upper locking through hole, and the roller group locking piece comprises a locking socket with a socket inner groove, which passes through the upper locking through hole and is plugged into the lower locking slot, an upper locking convex plate arranged on the upper part of the outer side wall of the locking socket, an insert block sliding hole penetrated through the lower part of the outer side wall of the locking socket, a lower locking insert block slidably arranged in the insert block sliding hole, and an insert block push-pull assembly arranged in the inner groove of the socket.

[0008] The utility model is further configured as follows: a through-column hole is penetrated on the top surface of the locking socket, and the plug-in block push-pull assembly includes a central rotating column rotatably arranged in the inner groove of the socket and with the top extending out of the inner groove of the socket through the through-column hole, a hinged disk coaxially arranged at the lower part of the central rotating column, and a hinged connecting rod, one end of the hinged connecting rod is hinged to the lower locking plug-in block, and the other end is hinged to the hinged disk.

[0009] The utility model is further configured as follows: an outer hinged platform is arranged on the end surface of the lower locking plug block close to the hinged disc, outer hinged shafts are arranged on both upper and lower end surfaces of the outer hinged platform, inner hinged shafts are arranged on both upper and lower end surfaces of the hinged disc corresponding to the outer hinged shafts, one end of the hinged connecting rod is hinged to the outer hinged platform through the outer hinged shaft, and the other end is hinged to the hinged disc through the inner hinged shaft.

[0010] The utility model is further configured as follows: a knob head is coaxially arranged after the central rotating column passes through the through-column hole, and an outer side wall of the knob head is provided with anti-slip patterns.

[0011] The utility model is further configured as follows: a stabilizing column guide turntable is coaxially arranged on the central rotating column and rotatably cooperates with the inner groove of the socket, the top surface of the stabilizing column guide turntable abuts against the top wall of the inner groove of the socket, and the bottom surface of the central rotating column abuts against the bottom wall of the inner groove of the socket.

[0012] The utility model is further configured as follows: a turntable limit card hole located above the upper locking convex plate is penetrated through the outer wall of the locking socket, a turntable side groove aligned with the turntable limit card hole is formed on the outer wall of the stabilizing column guide turntable, a turntable limit buckle that is slidably arranged in the turntable side groove and engages with the turntable limit card hole is provided, and a reset spring is provided between the bottom of the turntable side groove and the turntable limit buckle.

[0013] The utility model is further configured as follows: the catwalk surface layer comprises a bottom mesh layer and a surface mesh layer which are sequentially arranged from bottom to top.

[0014] The utility model is further configured as follows: the bottom mesh layer is a large square mesh steel wire mesh, the diameter of the steel wire of the bottom mesh layer is 5mm, and the hole size of the bottom mesh layer is 50mm×50mm.

[0015] The utility model is further configured as follows: the surface mesh layer is a small square mesh steel wire mesh, the diameter of the steel wire of the surface mesh layer is 1mm, and the hole size of the surface mesh layer is 20mm×20mm.

[0016] The utility model is further configured as follows: it also includes handrail ropes and handrails symmetrically arranged on both sides of the load-bearing rope, the handrails include columns whose bottoms are fixed to the two ends of the beam and connected to the handrail ropes, and a protective net arranged on the handrail ropes, the protective net is a large square mesh steel wire mesh, the steel wire diameter of the protective net is 4mm, and the hole size of the protective net is 80mm×80mm.

[0017] In summary, the beneficial technical effect of the utility model is that the square wooden steps and the bracket roller group in the catwalk of the self-anchored suspension bridge are fixed by roller group locking pieces, which is conducive to improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the self-anchored suspension bridge catwalk in the utility model;

[0019] Figure 2 It is a structural plan view of the self-anchored suspension bridge catwalk in the utility model;

[0020] Figure 3 This utility model Figure 1 The enlarged view of point A in the middle;

[0021] Figure 4 It is a structural schematic diagram of the roller assembly locking piece in the utility model;

[0022] Figure 5 The utility model is a structural schematic diagram of the roller assembly locking piece without the locking socket.

[0023] In the above drawings: 1, load-bearing cable; 2, handrail cable; 3, crossbeam; 4, catwalk surface layer; 41, bottom mesh layer; 42, surface mesh layer; 5, square wood step; 6, lower locking slot; 7, limit ring groove; 8, bracket roller group; 81, base; 9, upper locking through hole; 10, roller group locking piece; 11, locking socket; 111, half seat body; 12, socket inner groove; 13, upper locking convex plate; 14, plug block sliding hole; 15, lower Locking plug; 16. External hinge table; 17. External hinge shaft; 18. Through-column hole; 19. Center swivel column; 20. Knob handle; 21. Anti-slip pattern; 22. Articulated disc; 23. Internal hinge shaft; 24. Articulated connecting rod; 25. Stabilizing column guide turntable; 26. Turntable limit card hole; 27. Turntable side groove; 28. Turntable limit buckle; 29. ​​Reset spring; 30. Handrail; 31. Column; 32. Protective net. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and functions achieved by the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figure 1 and 2 As shown, the utility model proposes a self-anchored suspension bridge catwalk, including a load-bearing cable 1, a handrail cable 2, a crossbeam 3, a catwalk surface layer 4, square wood steps 5, a bracket roller group 8, and a handrail railing 30.

[0026] like Figure 1 and 2 As shown, in this embodiment, the number of load-bearing cables 1 is six, and the six load-bearing cables 1 form a horizontal laying plane. The load-bearing cables 1 are clamped with rope clamps and anchored to the connecting parts of the tower end and the beam end through hinge pins. The load-bearing cables 1 are pre-tensioned according to the specifications before use. First, they are pre-tensioned to eliminate non-elastic deformation. The pre-tensioning operation of the load-bearing cables 1 is carried out in the factory, maintained for 60 minutes, and is carried out twice, and the load is not less than 1 / 2 of the breaking load of each cable.

[0027] like Figure 1 and 2 As shown, in this embodiment, the number of handrail cables 2 is six, and the six handrail cables 2 are symmetrically arranged in threes on both sides of the load-bearing cable 1, and the three handrail cables 2 on each side form a vertical laying plane.

[0028] like Figure 1 and 2 As shown, the cross beam 3 is 8# or 10# channel steel, and the cross beam 3 is fixed to the six load-bearing cables 1 by U-shaped bolts.

[0029] like Figure 1 and 2As shown, the catwalk surface layer 4 is laid on six load-bearing cables 1, and the catwalk surface layer 4 is located between two adjacent beams 3, and the catwalk surface layer 4 is fixed to the six load-bearing cables 1 by U-shaped bolts. The catwalk surface layer 4 includes a bottom mesh layer 41 and a surface mesh layer 42 arranged in sequence from bottom to top. The bottom mesh layer 41 is a large square mesh steel wire mesh, the steel wire diameter of the bottom mesh layer 41 is 5mm, and the hole size of the bottom mesh layer 41 is 50mm×50mm. The bottom mesh layer 41 is used to increase the rigidity of the catwalk surface layer 4, and the surface mesh layer 42 is a small square mesh steel wire mesh, the steel wire diameter of the surface mesh layer 42 is 1mm, and the hole size of the surface mesh layer 42 is 20mm×20mm. The surface mesh layer 42 is used to prevent small workpieces from falling.

[0030] like Figure 1 and 3 As shown, the square timber step 5 is arranged on the top surface of the catwalk surface layer 4, and the square timber step 5 is fixed to the catwalk surface layer 4 by tying with 14# iron wire. The square timber step 5 is arranged in two rows, and each row of square timber steps 5 is arranged at equal intervals. The square timber step 5 is used for construction workers to walk on, and two lower locking slots 6 are symmetrically provided on the top surface of each square timber step 5. The lower locking slots 6 are circular grooves, and a limiting ring groove 7 is provided on the groove wall of the lower locking slot 6, and the cross-section of the limiting ring groove 7 is a circular ring.

[0031] like Figure 1 and 3 As shown, the bracket roller assembly 8 is fixedly mounted on the square wood step 5, and the bracket roller assembly 8 has a base 81. The top surface of the base 81 of the bracket roller assembly 8 is provided with an upper locking through hole 9, and the upper locking through hole 9 is a circular hole. When the bracket roller assembly 8 is mounted on the square wood step 5, the upper locking through hole 9 is aligned with the lower locking slot 6, and the roller assembly locking piece 10 is arranged in the upper locking through hole 9 and the lower locking slot 6.

[0032] like Figure 3 and 4 As shown, the roller assembly locking piece 10 includes a locking socket 11, which is cylindrical. The locking pin passes through the upper locking through hole 9 and is plugged into the lower locking slot 6. The locking socket 11 is spliced ​​by a pair of semi-cylindrical half-seat bodies 111. The interior of the locking socket 11 has a socket inner groove 12 with a circular cross-section, and the socket inner groove 12 is opened in half on the two half-seat bodies 111.

[0033] like Figure 3 and 4 As shown, an upper locking convex plate 13 is fixedly connected to the outer wall of the locking socket 11. The cross section of the upper locking convex plate 13 is annular, and the upper locking convex plate 13 is arranged in half on the two half seats 111. When the bracket roller assembly 8 is installed on the square wooden step 5, the bottom surface of the upper locking convex plate 13 abuts against the top surface of the base 81 of the bracket roller assembly 8.

[0034] like Figure 3and 4 As shown, an insert block slide hole 14 is opened on the outer wall of the locking socket 11, and the number of the insert block slide holes 14 is four. The four insert block slide holes 14 are all connected to the inner groove 12 of the socket. The four insert block slide holes 14 are equidistantly distributed around the central axis of the locking socket 11, and two aligned insert block slide holes 14 are opened in half on the two half-socket bodies 111.

[0035] like Figure 3 and 4 As shown, a lower locking plug 15 is slidably disposed in each plug slide hole 14. The lower locking plug 15 is a rectangular sheet. An outer hinged platform 16 is fixedly connected to the end surface of the lower locking plug 15 close to the inner groove 12 of the socket. Both end surfaces of the outer hinged platform 16 are provided with an outer hinge shaft 17. An plug push-pull assembly is provided in the inner groove 12 of the socket. The plug push-pull assembly can push or pull the lower locking plug 15, thereby driving the lower locking plug 15 to perform reciprocating linear motion along the plug slide hole 14.

[0036] like Figure 3 and 5 As shown, the insert block push-pull assembly includes a central rotating column 19, a hinged disc 22, and a hinged connecting rod 24.

[0037] like Figure 3 and 5 As shown, a through-column hole 18 is provided on the top surface of the locking socket 11. The through-column hole 18 is a circular hole, coaxial with the locking socket 11, and half of the through-column hole 18 is provided on two half-seat bodies 111. The central rotating column 19 is cylindrical, and is rotatably arranged at the center of the inner groove 12 of the socket. The bottom surface of the central rotating column 19 abuts against the bottom wall of the inner groove 12 of the socket. The top of the central rotating column 19 extends out of the inner groove 12 of the socket through the through-column hole 18, and the central rotating column 19 and the through-column hole 18 are rotatably matched. After the central rotating column 19 passes through the through-column hole 18, a knob handle 20 is coaxially fixedly connected. The outer wall of the knob handle 20 has anti-slip patterns 21. The knob handle 20 is used to provide a force point for construction personnel to rotate the central rotating column 19.

[0038] like Figure 3 and 5 As shown, the hinged disc 22 is coaxially arranged at the lower part of the central rotating column 19, and the cross-section of the hinged disc 22 is a circular ring. The hinged disc 22 is coplanar with four equidistant circumferentially distributed plug-in sliding holes 14 in the horizontal direction, and four inner hinge shafts 23 are equidistantly arranged on the upper and lower end surfaces of the hinged disc 22.

[0039] like Figure 3 and 5As shown, one end of the articulated link 24 is articulated to the outer articulated platform 16 through the outer articulated shaft 17, and the other end is articulated to the articulated disc 22 through the inner articulated shaft 23. There are two articulated links 24 between the articulated disc 22 and each outer articulated platform 16. The two articulated links 24 are symmetrically arranged on both sides of the articulated disc 22. Two articulated links 24 are arranged between the central rotating column 19 and the lower locking plug block 15, which is beneficial to improving the connection stability between the central rotating column 19 and the lower locking plug block 15.

[0040] like Figure 3 and 5 As shown, the upper part of the center rotating column 19 is coaxially fixedly connected with a stabilizing column guide turntable 25, and the stabilizing column guide turntable 25 is located above the upper locking convex plate 13. The stabilizing column guide turntable 25 rotates in cooperation with the inner groove 12 of the socket, and the center rotating column 19 can rotate relatively stably. The top surface of the stabilizing column guide turntable 25 abuts against the top surface of the inner groove 12 of the socket, and because the bottom surface of the center rotating column 19 abuts against the bottom wall of the inner groove 12 of the socket, the center rotating column 19 is restricted from axial runout.

[0041] like Figure 3 As shown, a turntable limit hole 26 is formed through the outer wall of the locking socket 11 . The turntable limit hole 26 is a circular hole. The turntable limit hole 26 is located above the upper locking convex plate 13 . The turntable limit hole 26 is formed in half on the two half-seat bodies 111 .

[0042] like Figure 3 As shown, a turntable side groove 27 is provided on the side wall of the stabilizing column guide turntable 25, and the cross section of the turntable side groove 27 is circular, and the turntable side groove 27 can be aligned with the turntable limit clamp hole 26. A bullet-shaped turntable limit buckle 28 is slidably arranged in the turntable side groove 27, and a return spring 29 is arranged between the groove bottom of the turntable side groove 27 and the turntable limit buckle 28, one end of the return spring 29 is connected to the groove bottom of the turntable side groove 27, and the other end is connected to the turntable limit buckle 28, and the return spring 29 is used to push the turntable limit buckle 28 to embed into the turntable limit clamp hole 26, thereby limiting the rotation of the stabilizing column guide turntable 25 and the central rotating column 19.

[0043] The detailed installation process of the bracket roller set 8 in this embodiment is as follows:

[0044] S1: The construction worker places the bracket roller assembly 8 on the square timber step 5, and aligns the lower locking slot 6 with the upper locking through hole 9;

[0045] S2: The construction personnel pass the locking plug of the roller assembly locking piece 10 through the upper locking through hole 9 and plug it into the lower locking slot 6. At this time, the bottom surface of the upper locking convex plate 13 is against the top surface of the base 81 of the bracket roller assembly 8. Then the construction personnel rotate the central rotating column 19 and the hinged disk 22 through the knob head 20. The rotation of the hinged disk 22 will push the lower locking plug 15 away from the end of the central rotating column 19 through the hinged connecting rod 24 to extend out of the plug sliding hole 14. At this time, the lower locking plug 15 is inserted into the limit ring groove 7, and the bracket roller assembly 8 is fixed on the square wooden step 5.

[0046] The wooden steps 5 and the bracket roller group 8 in the catwalk of the self-anchored suspension bridge are fixed by roller group locking pieces 10, which is beneficial to improving the construction efficiency.

[0047] like Figure 1 and 2 As shown, the handrail 30 includes a column 31 and a protective net 32. The column 31 is an angle steel. The bottom bolts of the column 31 are connected to the two ends of the beam 3. The column 31 is connected to three handrail cables 2 forming the same vertical laying plane through U-shaped bolts. The protective net 32 ​​is fixed to the handrail cables 2 by wire binding. The protective net 32 ​​is a large square mesh steel wire mesh. The steel wire diameter of the protective net 32 ​​is 4 mm, and the hole size of the protective net 32 ​​is 80 mm×80 mm.

[0048] Key points for safety control of catwalk construction:

[0049] (1) Workers must wear safety protective equipment; ensure that people and vehicles are separated and cross-construction control is implemented; a pedestrian passage is set up on the outside of the catwalk and a motor vehicle passage is set up on the inside of the catwalk; safety warning signs and safety guardrails are set up on the vertical ground of the work surface or a dedicated person is assigned to monitor to prevent falling objects from high altitude from injuring people.

[0050] (2) When construction workers pass through the catwalk, they should step on the square wooden steps and channel steel beams. It is strictly prohibited to play, frolic or run on the catwalk.

[0051] (3) Fire prevention measures must be taken on the catwalk surface; gas cutting and electric welding are strictly prohibited on the catwalk, especially to avoid the load-bearing cables being injured by electric welding; safety belts must be worn when working in a small area on the catwalk surface, and the safety belts should be tied to the railing ropes of the side railings.

[0052] (4) When working on the catwalk, it is strictly prohibited to throw objects from high places to prevent objects from falling onto the bridge deck and causing safety accidents.

[0053] (5) The main load-bearing components of the catwalk should be inspected regularly. The cable clamps of the load-bearing cables should be installed with safety clips as required and marked with red paint. Designated personnel should regularly inspect the connected load-bearing components and deal with any abnormalities in a timely manner.

[0054] (6) When working at night, sufficient lighting fixtures should be installed on the catwalk, and the lighting power supply should be a safe voltage not exceeding 36V. It is strictly prohibited to work in unclear light conditions.

[0055] (7) When the wind is strong or it is raining or snowing, it is strictly prohibited to carry out construction on the catwalk, and the guy rope must be fixed as required.

[0056] (8) The number of people on the catwalk shall be strictly controlled during its use. Safety signs shall be set up at the entrance of the catwalk. Personnel other than those involved in the main cable construction shall not be allowed to enter the catwalk.

[0057] (9) During the installation of the catwalk, ensure good communication and equip each construction site with at least one walkie-talkie to keep the signal unobstructed.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A self-anchored suspension bridge catwalk, comprising a load-bearing cable (1), characterized in that: The load-bearing cable (1) is provided with a crossbeam (3) and a catwalk surface layer (4) located between adjacent crossbeams (3); the catwalk surface layer (4) is provided with a square wooden step (5); a lower locking slot (6) is provided on the top surface of the square wooden step (5); a limit ring groove (7) is provided on the groove wall of the lower locking slot (6); a bracket roller group (8) having a base (81) is provided on the square wooden step (5); an upper locking through hole (9) aligned with the lower locking slot (6) is provided through the base (81); A roller assembly locking piece (10) is inserted through the locking through hole (9), and the roller assembly locking piece (10) comprises a locking socket (11) having a socket inner groove (12) and passing through the upper locking through hole (9) and plugged into the lower locking slot (6), an upper locking convex plate (13) arranged at the upper part of the outer wall of the locking socket (11), an insert block sliding hole (14) penetrating through the lower part of the outer wall of the locking socket (11), a lower locking insert block (15) slidably arranged in the insert block sliding hole (14), and an insert block push-pull assembly arranged in the socket inner groove (12).

2. The self-anchored suspension bridge catwalk according to claim 1, characterized in that: A through-column hole (18) is formed on the top surface of the locking socket (11), and the plug push-pull assembly comprises a central rotating column (19) which is rotatably arranged in the socket inner groove (12) and the top of which extends out of the socket inner groove (12) through the through-column hole (18), a hinged disc (22) coaxially arranged at the lower part of the central rotating column (19), and a hinged connecting rod (24), wherein one end of the hinged connecting rod (24) is hinged to the lower locking plug (15), and the other end is hinged to the hinged disc (22).

3. The self-anchored suspension bridge catwalk according to claim 2, characterized in that: An outer hinge platform (16) is arranged on the end surface of the lower locking plug block (15) close to the hinged disc (22); outer hinge shafts (17) are arranged on the upper and lower end surfaces of the outer hinge platform (16); inner hinge shafts (23) are arranged on the upper and lower end surfaces of the hinged disc (22) corresponding to the outer hinge shafts (17); one end of the hinge connecting rod (24) is hinged to the outer hinge platform (16) through the outer hinge shaft (17), and the other end is hinged to the hinged disc (22) through the inner hinge shaft (23).

4. The self-anchored suspension bridge catwalk according to claim 2, characterized in that: After the central rotating column (19) passes through the column hole (18), a knob head (20) is coaxially arranged, and the outer side wall of the knob head (20) has anti-slip patterns (21).

5. The self-anchored suspension bridge catwalk according to claim 2, characterized in that: A stabilizing column guide turntable (25) is coaxially arranged on the central rotating column (19) and is rotatably matched with the inner groove (12) of the socket. The top surface of the stabilizing column guide turntable (25) abuts against the top wall of the inner groove (12) of the socket, and the bottom surface of the central rotating column (19) abuts against the bottom wall of the inner groove (12) of the socket.

6. The self-anchored suspension bridge catwalk according to claim 5, characterized in that: A turntable limiting clamping hole (26) located above the upper locking convex plate (13) is formed through the outer wall of the locking socket (11); a turntable side groove (27) aligned with the turntable limiting clamping hole (26) is formed on the outer wall of the stabilizing column guide turntable (25); a turntable limiting clamping buckle (28) engaged with the turntable limiting clamping hole (26) is slidably arranged in the turntable side groove (27); a return spring (29) is arranged between the groove bottom of the turntable side groove (27) and the turntable limiting clamping buckle (28).

7. The self-anchored suspension bridge catwalk according to claim 1, characterized in that: The catwalk surface layer (4) comprises a bottom mesh layer (41) and a surface mesh layer (42) which are arranged in sequence from bottom to top.

8. The self-anchored suspension bridge catwalk according to claim 7, characterized in that: The bottom mesh layer (41) is a large square mesh steel wire mesh, the diameter of the steel wire of the bottom mesh layer (41) is 5 mm, and the size of the holes of the bottom mesh layer (41) is 50 mm×50 mm.

9. The self-anchored suspension bridge catwalk according to claim 7, characterized in that: The surface mesh layer (42) is a small square mesh steel wire mesh, the diameter of the steel wire of the surface mesh layer (42) is 1 mm, and the size of the holes of the surface mesh layer (42) is 20 mm×20 mm.

10. The self-anchored suspension bridge catwalk according to claim 1, characterized in that: The invention also comprises a handrail rope (2) and a handrail railing (30) symmetrically arranged on both sides of the load-bearing rope (1); the handrail railing (30) comprises a column (31) whose bottom is fixed to both ends of the crossbeam (3) and connected to the handrail rope (2); and a protective net (32) arranged on the handrail rope (2); the protective net (32) is a large square mesh steel wire net; the steel wire diameter of the protective net (32) is 4 mm; and the hole size of the protective net (32) is 80 mm×80 mm.

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