Large-scale modularized safety type step bridge device

By designing a large modular safety bridge device, the problem of difficulty in using the ship bridge in harsh sea conditions and the difficulty of integrating multiple professionals is solved, and the rapid assembly of the bridge and the safe walking of the crew are achieved, which significantly improves shipbuilding efficiency and safety.

CN119858630APending Publication Date: 2025-04-22AVIC DINGHENG SHIPBUILDING CO LTD
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Patent Information

Application Number
CN202510136543.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2025-04-22

AI Technical Summary

Technical Problem

The existing ship footbridge is difficult to use under harsh sea conditions, and crew members are prone to bumps and fall risks during the transfer process. Moreover, the multi-professional integration and rapid assembly of the footbridge are difficult, which affects the shipbuilding period.

Method used

A large modular safety bridge device is designed, including a ship bridge and safety guards. The ship step bridge is equipped with large modular assembly through multi-professional fusion, and is equipped with safety sliding support, safety grip and safety binding parts to ensure that crew members walk safely in harsh sea conditions.

Benefits of technology

The rapid assembly and multi-professional integration of the step bridge have been achieved, which improves the safety and convenience of crew members in harsh sea conditions, and significantly reduces the construction period and cost of shipbuilding.

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Abstract

The invention discloses an implementation scheme of a large-scale modular step bridge of an oil ship, a related safety connecting device and a large-scale modular safety type step bridge device.According to the implementation scheme, a ship step bridge is installed on the ship according to the design scheme, and turbine equipment, a pipe system and electricity are integrally installed on the ship step bridge in a fused mode so that large-scale modular assembly can be achieved; the safety protection part is arranged on the ship step bridge, the safety protection part comprises a safety sliding supporting part, a safety holding part and a safety binding part, the safety sliding supporting part is arranged on the ship step bridge in a sliding mode, and the safety holding part is arranged on the safety sliding supporting part and is used for being grabbed by a person; the safety binding piece is arranged on the safety sliding supporting piece and used for being bound on the body of a sailor using the sailor. The device is reasonable in structural design, convenient to use and high in safety; effective technical support is provided for rapid construction of multi-specialty multifunctional large modules, and cost reduction and efficiency improvement of on-site construction operation are practically and effectively achieved.
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Description

Technical Field

[0001] The present invention relates to the technical field of ship equipment, and more specifically, to a large modular safety walkway device. Background Art

[0002] The gangway is the largest area module on the main deck of the ship. Since the machinery, pipes, electricity, and structure also need to be arranged in the corresponding area, how to effectively integrate various disciplines and conduct parallel and cross operations is a very difficult problem for the shipyard. Its design and installation restrict and affect the entire shipbuilding period. Therefore, it is an urgent need for each shipyard to design a large modular gangway that integrates various disciplines and can be assembled quickly. In addition, the gangway serves as a walking platform for the crew on the ship. Due to the unpredictable sea conditions, the crew working on the ship may encounter sudden severe sea conditions, which makes the crew encounter bumpy gangways during the transfer from the ship to the cabin, making it difficult to move, and even risk falling from the gangway. Therefore, it is of great use value to design a large modular safety gangway device. Summary of the invention

[0003] In order to overcome the above-mentioned defects, the present invention relates to a multi-professional and multi-functional large modular assembly of a large-scale gangway on the main deck of a ship and a safe gangway device for a petrochemical ship. Specifically, the present invention discloses an implementation scheme of a large-scale modular gangway for a petrochemical ship and a related safety connection device, including: an integrated module scheme of a ship gangway, which is installed on the ship according to the design scheme and is mainly used by the crew to walk, integrating various professional (electrical cables and large pipelines and valve accessories, various electronic sensor element bases) modules;

[0004] The present invention provides a large-scale modular design and implementation scheme that integrates various professions and can be assembled quickly, and provides a large-scale modular safety step bridge device, which specifically adopts the following technical scheme:

[0005] Large modular safety bridge device, including:

[0006] Ship gangway, which is installed on the ship according to the design plan and is mainly used by the crew to walk, and the ship gangway is integrated with the turbine equipment, piping and electrical equipment to achieve large modular assembly;

[0007] A safety protection member is arranged on the ship's gangway, and the safety protection member includes a safety sliding support member, a safety gripping member and a safety binding member. The safety sliding support member is slidably arranged on the ship's gangway, the safety gripping member is on the safety sliding support member for people to grasp, and the safety binding member is on the safety sliding support member for binding on the crew member using it.

[0008] Preferably, the ship gangway comprises a gangway unit, the structures of a plurality of the gangway units are determined according to design requirements, and the plurality of the gangway units are adjacently docked and arranged on the ship according to design requirements for the crew to walk and use.

[0009] Preferably, the safety sliding support member includes a locking sliding member and a supporting relay member, the locking sliding member is arranged on a safety support seat on the handrail of the step bridge unit, and the supporting relay member is arranged on the locking sliding member; the safety support seat fixing sleeve is buckled on the upper surface of the handrail, and sliding grooves are arranged on the outer walls of the two groove walls of the safety support seat.

[0010] Preferably, the locking sliding member includes a locking sliding seat and a circumferential locking sliding member, the locking sliding seat is slidably mounted on the safety support seat, and the circumferential locking sliding member is slidably connected to the safety support seat on the locking sliding seat; locking through holes are provided on both groove walls of the locking sliding seat corresponding to the two sliding grooves one by one.

[0011] Preferably, the circumferential locking sliding member includes a circumferential locking slider, a locking transmission rod, a locking support seat and a magnetic coil. The circumferential locking slider is slidably embedded in the locking through hole. One end of the locking transmission rod is arranged on the other side of the circumferential locking slider. A locking hole is arranged on one side surface of the locking support seat. One side of the locking support seat is arranged on a side wall of the locking sliding seat, and the locking hole corresponds to the other end of the locking transmission rod; the magnetic coil is embedded in the spiral groove on the inner wall of the locking hole.

[0012] Preferably, the support relay member comprises a support relay seat, a bottom end surface of the support relay seat is provided with a first arc groove, and the support relay seat is fixedly sleeved on the locking sliding seat through the first arc groove.

[0013] Preferably, the safety holding piece includes a holding adjustment piece and a holding locking piece, the holding adjustment piece is arranged on the support relay seat, and the holding locking piece is arranged on the holding adjustment piece; the holding adjustment piece includes a holding rotating seat, a holding support seat and a handle, the holding rotating seat is rotatably embedded in the second arc groove on the top end surface of the support relay seat, and the rotating shafts on the two end surfaces of the holding rotating seat rotate to pass through the support seats at both ends of the second arc groove, one side of the holding support seat is arranged on the side wall of the holding rotating seat, and one side of the handle is arranged on the other side of the holding support seat.

[0014] Preferably, the holding locking member includes a first end toothed disc, a locking transmission tube, a tension spring and a second end toothed disc, the first end toothed disc is fixedly arranged on one end face of the support relay seat, one end face of the locking transmission tube is closed, the other end of the locking transmission tube is axially slidably mounted on the free end of the rotating shaft, and the sliding block on the inner wall of the locking transmission tube is slidably embedded in the sliding groove on the rotating shaft; the second end toothed disc is mounted on the other end face of the locking transmission tube, and the second end toothed disc can engage with the first end toothed disc; one end of the tension spring is connected to one end of the locking transmission tube, and the other end of the tension spring is connected to the free end of the rotating shaft.

[0015] Preferably, the safety binding device includes a safety belt, an insert and a buckle, one end of the safety belt is connected to the support relay seat, and the other end of the safety belt is provided with two tightening belts, and the insert and the buckle are connected to the free ends of the two tightening belts one by one.

[0016] Preferably, the safety protection members are provided in multiple sets, and the multiple sets of the safety protection members are respectively arranged on the guardrails on both sides to collaboratively provide safety protection for the crew.

[0017] The present invention has at least the following beneficial effects:

[0018] 1) The large modular safety step bridge device of the present invention has a reasonable structural design, is easy to use and has high safety; it provides effective technical support for the rapid construction of multi-professional and multi-functional large modules, and effectively reduces costs and increases efficiency for on-site construction operations.

[0019] 2) The large modular safety gangway device of the present invention is provided with a safety sliding support, a safety grip and a safety binding. After the crew member binds the safety binding on his body, he grabs the safety grip and slides on the handrail through the safety sliding support to walk safely on the gangway and quickly transfer to the cabin, which significantly improves the convenience of using the safety protection device and the safety of walking on the gangway in turbulent sea conditions.

[0020] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a step bridge unit in a large modular safety step bridge device of the present invention;

[0022] Figure 2 This is a front view of the large modular safety step bridge device of the present invention;

[0023] Figure 3 The invention provides a large modular safety step bridge device. Figure 2 A partial enlarged view of middle C;

[0024] Figure 4 A top view of a large modular safety step bridge device of the present invention;

[0025] Figure 5 The invention provides a large modular safety step bridge device. Figure 2 Schematic diagram of the three-dimensional structure of the cross section in the AA direction;

[0026] Figure 6 The invention provides a large modular safety step bridge device. Figure 5 A partial enlarged view of middle D;

[0027] Figure 7 The invention provides a large modular safety step bridge device. Figure 4 Schematic diagram of the three-dimensional structure of the cross section in the middle BB direction;

[0028] Figure 8 The invention provides a large modular safety step bridge device. Figure 7 A partial enlarged view of E.

[0029] Among them: 2-armrest, 3-safety support seat, 4-locking sliding seat, 5-circumferential locking slider, 6-locking transmission rod, 7-locking support seat, 8-support relay seat, 9-holding rotating seat, 10-holding support seat, 11-handle, 12-first end toothed disc, 13-locking transmission tube, 14-tension spring, 15-second end toothed disc, 16-safety belt, 17-insert, 18-buckle, 19-tightening belt, 20-sliding groove, 21-rotating shaft. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be described in detail below by way of embodiments with reference to the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0031] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0032] according to Figure 1-Figure 8As shown, a large modular safety type gangway device includes a ship gangway and a safety protection part. The ship gangway is arranged on a chemical tanker, and the safety protection part is arranged on the ship gangway. The ship gangway includes a gangway unit, and the gangway unit is in the shape of a gangway frame and is made of square steel pipes. Furthermore, there are multiple gangway units, and the structures of the multiple gangway units are determined according to the design requirements. The multiple gangway units are adjacently docked and arranged on the ship according to the design requirements for the crew to walk and use; the gangway unit integrates other specialties (engineering equipment, piping, and electrical) into one to achieve large modular assembly; the large modular design has been optimized in the docking area in combination with the hull structure, and the layout of the integrated engine equipment and piping system has been integrated. The on-site construction has divided and connected the gangway that runs through the bow and stern of the main deck of the entire ship, so that it is easy to dock and assemble quickly.

[0033] The step bridge unit hoisting construction process includes:

[0034] 1) dividing the locations where the multiple gangway units are installed on the ship into units according to the construction process;

[0035] 2) Prefabricate the structure of the step bridge unit in pieces (main frame structure, railings, handrails) in the inner field (manufacturing workshop). For the structure with a relatively large span of a single main frame, temporary support and reinforcement are required to prevent deformation of the main frame structure;

[0036] 3) Assemble the prefabricated parts (including structural frames, pipe supports, pipe accessories and electrical equipment);

[0037] 4) Use a crane to pre-install the units in the segmented area;

[0038] 5) Paint the step bridge unit;

[0039] 6) Fiberglass grilles are laid on the bridge units;

[0040] 7) Mark the installation position on the deck of the ship;

[0041] 8) Use a gantry crane to lift the bridge unit in sections and place them at the marked positions;

[0042] 9) Connect the closing ends between the gangway units to complete the entire construction of the gangway structure on the ship deck.

[0043] It should be noted that this construction process reduces the construction difficulty, shortens the construction period, provides a model for the integrated assembly of the entire ship's machinery, electricity, outfitting, and pipes, greatly optimizes the coordination difficulty of various disciplines, and eliminates the safety hazards of cross-operation.

[0044] The safety protection member includes a safety sliding support member, a safety gripping member and a safety binding member. The safety sliding support member is arranged on the handrail 2 of the step bridge unit, and the safety gripping member and the safety binding member are both arranged on the safety sliding support member. The safety sliding support member includes a locking sliding member and a support relay member. The locking sliding member is arranged on the safety support seat 3 on the handrail 2, and the support relay member is arranged on the locking sliding member.

[0045] Furthermore, the cross section of the safety support seat 3 is U-shaped, the inner diameter of the groove of the safety support seat 3 is not less than the diameter of the handrail 2, and the safety support seat 3 is fixedly mounted on the upper surface of the handrail 2, so that the safety support seat 3 is circumferentially and axially locked on the handrail 2 to provide support for the locking slide. The outer side walls of the two groove walls of the safety support seat 3 are provided with sliding grooves 20 for sliding connection with the locking slide. The safety support seat 3 is provided in plurality, and the plurality of safety support seats 3 are correspondingly provided on the plurality of step bridge units.

[0046] The locking sliding member includes a locking sliding seat 4 and a circumferential locking sliding member, the locking sliding seat 4 is U-shaped, the inner diameter of the locking sliding seat 4 is not less than the outer diameter of the safety support seat 3, the locking sliding seat 4 is slidably mounted on the safety support seat 3, and is slidably connected to the safety support seat 3 through the circumferential locking sliding member thereon. Further, locking through holes are provided on both groove walls of the locking sliding seat 4, and the two locking through holes correspond to the two sliding grooves 20 one by one.

[0047] The circumferential locking slide comprises a circumferential locking slider 5, a locking transmission rod 6, a locking support seat 7 and a magnetic coil. The circumferential locking slider 5 is in a rectangular block shape, and the thickness of the circumferential locking slider 5 is greater than the depth of the sliding groove 20. The circumferential locking slider 5 is slidably embedded in the locking through hole, so that one side of the circumferential locking slider 5 is slidably embedded in the sliding groove 20, and the other side of the circumferential locking slider 5 is located in the locking through hole. One end of the locking transmission rod 6 is vertically fixed on the other side of the circumferential locking slider 5 to push the circumferential locking slider 5 to move. Further, three locking transmission rods 6 are provided, and the three locking transmission rods 6 are evenly distributed along the longitudinal direction of the circumferential locking slider 5 to improve the uniform stability of the thrust and pull. The locking support seat 7 is in a rectangular block shape, and the width of the locking support seat 7 is greater than the width of the locking through hole. A locking hole is provided on one side of the locking support seat 7, and the three locking holes are evenly distributed on the locking support seat 7 along the longitudinal direction. One side of the locking support seat 7 is fixedly arranged on a side wall of the locking sliding seat 4, and the three locking holes are correspondingly sleeved on the other ends of the three locking transmission rods 6. The magnetic coil is fixedly embedded in the spiral groove on the inner wall of the locking hole, and the three magnetic coils correspond to the three locking holes one by one. When direct current is passed into the magnetic coil to generate a magnetic field, it will drive the locking transmission rod 6 to slide back and forth axially in the locking hole, and then push the circumferential locking slider 5 into the sliding groove 20, so that the locking sliding seat 4 is circumferentially locked and axially slid on the safety support seat 3. It is also possible to pull the circumferential locking slider 5 out of the sliding groove 20 to release the connection between the safety protection part and the handrail 2, so that the crew can enter another step bridge unit from one step bridge unit in the case of wind and waves until they are transferred to a safe cabin, preventing the crew from falling during the step bridge walking process in severe sea conditions, and significantly improving the safety of the crew.

[0048] Furthermore, two sets of the circumferential locking sliding members are provided, and the two sets of the circumferential locking sliding members are correspondingly arranged on the two groove walls of the locking sliding seat 4 and correspond to the two locking through holes one by one.

[0049] The support relay component includes a support relay seat 8, and a first arc groove is provided on the bottom end surface of the support relay seat 8. The support relay seat 8 is fixedly mounted on the locking sliding seat 4 through the first arc groove. Furthermore, the support relay component also includes an energy storage battery and a signal transmitter. The energy storage battery and the signal transmitter are both installed in the installation cavity in the support relay seat 8, and the energy storage battery is electrically connected to the magnetic coil and the signal transmitter respectively. The signal transmitter can transmit the use status signal and position signal of the safety protection component to the cab, so that the cab can count and track the status of personnel on the outdoor gangway under severe sea conditions, further improving the safety of the crew.

[0050] The safety gripping member includes a gripping adjustment member and a gripping locking member. The gripping adjustment member is arranged on the support relay seat 8, and the gripping locking member is arranged on the gripping adjustment member. The gripping adjustment member includes a gripping rotating seat 9, a gripping support seat 10 and a gripping handle 11. The gripping rotating seat 9 is cylindrical. The gripping rotating seat 9 is rotatably embedded in the second arc groove on the top surface of the support relay seat 8, and the rotating shaft 21 on the two end surfaces of the gripping rotating seat 9 rotates through the support seats at both ends of the second arc groove, so that the gripping rotating seat 9 rotates circumferentially in the second arc groove, thereby adjusting the angle of the gripping handle 11, and improving the comfort and safety of the crew holding the gripping handle 11. One side of the gripping support seat 10 is fixedly arranged on the side wall of the gripping rotating seat 9, and one side of the gripping handle 11 is fixedly arranged on the other side of the gripping support seat 10.

[0051] The holding locking member includes a first end toothed disc 12, a locking transmission tube 13, a tension spring 14, and a second end toothed disc 15. The first end toothed disc 12 is fixedly arranged on one end face of the support relay seat 8, and the axis of the first end toothed disc 12 coincides with the axis of the rotating shaft 21. One end face of the locking transmission tube 13 is closed, and the other end of the locking transmission tube 13 is axially slidably mounted on the free end of the rotating shaft 21, and the sliding block on the inner wall of the locking transmission tube 13 is slidably embedded in the slide groove on the rotating shaft 21. The locking transmission tube 13 is axially slidable and circumferentially locked on the rotating shaft 21. The second end toothed disc 15 is fixedly mounted on the other end face of the locking transmission tube 13, and the second end toothed disc 15 can mesh with the first end toothed disc 12. One end of the tension spring 14 is fixedly connected to the inner side surface of one end of the locking transmission tube 13, and the other end of the tension spring 14 is connected to the free end surface of the rotating shaft 21, so as to drive the second end toothed disc 15 to mesh with the first end toothed disc 12 by pulling the locking transmission tube 13, thereby circumferentially locking the rotating shaft 21, and finally circumferentially locking the holding rotating seat 9. When the personnel need to adjust the rotation angle of the handle 11, they only need to pull the locking transmission tube 13 outward to disengage the second end toothed disc 15 from the first end toothed disc 12, rotate the handle 11 to a suitable angle, and then release the locking transmission tube 13 to re-engage the second end toothed disc 15 with the first end toothed disc 12.

[0052] The safety binding device includes a safety belt 16, an insert 17 and a buckle 18. One end of the safety belt 16 is connected to the support relay seat 8. The other end of the safety belt 16 is provided with two tightening belts 19. The insert 17 and the buckle 18 are fixedly connected to the free ends of the two tightening belts 19 one by one. When the crew uses it, after the two tightening belts 19 are wrapped around the waist, they can be locked by connecting the insert 17 and the buckle 18. This further improves the safety of walking on the gangway.

[0053] Furthermore, the safety guards are provided with two sets, and the two sets of the safety guards are respectively provided on the guardrails on both sides. When the crew uses the safety guards, they adjust the length of the tightening belts 19 of the two sets of the safety guards, wrap the tightening belts 19 of the two sets of the safety guards around the crew's waist, and then insert the insert 17 of one set of the safety guards into the buckle 18 of the other set of the safety guards, and then insert the insert 17 of the other set of the safety guards into the buckle 18 of the one set of the safety guards. This further improves the safety of walking on the walkway in harsh environments.

[0054] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A large modular safety step bridge device, characterized in that: include: Ship gangway, which is installed on the ship according to the design plan and is mainly used by the crew to walk, and the ship gangway is integrated with the turbine equipment, piping and electrical equipment to achieve large modular assembly; A safety protection member is arranged on the ship's gangway, and the safety protection member includes a safety sliding support member, a safety gripping member and a safety binding member. The safety sliding support member is slidably arranged on the ship's gangway, the safety gripping member is on the safety sliding support member for people to grasp, and the safety binding member is on the safety sliding support member for binding on the crew member using it.

2. The large modular safety walking bridge device according to claim 1, characterized in that: The ship gangway includes a gangway unit, the structures of the multiple gangway units are determined according to design requirements, and the multiple gangway units are adjacently docked and arranged on the ship according to design requirements for crew members to walk and use.

3. The large modular safety walking bridge device according to claim 2, characterized in that: The safety sliding support member includes a locking sliding member and a supporting relay member, the locking sliding member is arranged on a safety support seat on the handrail of the step bridge unit, and the supporting relay member is arranged on the locking sliding member; the safety support seat fixing sleeve is buckled on the handrail, and sliding grooves are arranged on the outer walls of the two groove walls of the safety support seat.

4. The large modular safety walking bridge device according to claim 3, characterized in that: The locking sliding member includes a locking sliding seat and a circumferential locking sliding member, the locking sliding seat is slidably mounted on the safety support seat, and the circumferential locking sliding member is slidably connected to the safety support seat on the locking sliding seat; locking through holes are provided on both groove walls of the locking sliding seat corresponding to the two sliding grooves one by one.

5. The large modular safety walking bridge device according to claim 4, characterized in that: The circumferential locking sliding member includes a circumferential locking slider, a locking transmission rod, a locking support seat and a magnetic coil. The circumferential locking slider is slidably embedded in the locking through hole. One end of the locking transmission rod is arranged on the other side of the circumferential locking slider. A locking hole is arranged on one side surface of the locking support seat. One side of the locking support seat is arranged on a side wall of the locking sliding seat, and the locking hole is correspondingly sleeved on the other end of the locking transmission rod; the magnetic coil is embedded in the spiral groove on the inner wall of the locking hole.

6. The large modular safety walking bridge device according to claim 3, characterized in that: The support relay member comprises a support relay seat, a bottom end surface of the support relay seat is provided with a first arc groove, and the support relay seat is fixedly sleeved on the locking sliding seat through the first arc groove.

7. The large modular safety walking bridge device according to claim 3, characterized in that: The safety holding part includes a holding adjustment part and a holding locking part, the holding adjustment part is arranged on the support relay seat, and the holding locking part is arranged on the holding adjustment part; the holding adjustment part includes a holding rotating seat, a holding support seat and a handle, the holding rotating seat is rotatably embedded in the second arc groove on the top end surface of the support relay seat, and the rotating shafts on the two end surfaces of the holding rotating seat rotate to pass through the support seats at both ends of the second arc groove, one side of the holding support seat is arranged on the side wall of the holding rotating seat, and one side of the handle is arranged on the other side of the holding support seat.

8. The large modular safety walking bridge device according to claim 3, characterized in that: The holding locking member includes a first end toothed disc, a locking transmission tube, a tension spring and a second end toothed disc. The first end toothed disc is fixedly arranged on one end face of the support relay seat, one end face of the locking transmission tube is closed, the other end of the locking transmission tube is axially slidably mounted on the free end of the rotating shaft, and the sliding block on the inner wall of the locking transmission tube is slidably embedded in the sliding groove on the rotating shaft; the second end toothed disc is mounted on the other end face of the locking transmission tube, and the second end toothed disc can engage with the first end toothed disc; one end of the tension spring is connected to one end of the locking transmission tube, and the other end of the tension spring is connected to the free end of the rotating shaft.

9. The large modular safety walking bridge device according to claim 3, characterized in that: The safety binding device includes a safety belt, an insert and a buckle. One end of the safety belt is connected to the support relay seat, and the other end of the safety belt is provided with two tightening belts. The insert and the buckle are connected to the free ends of the two tightening belts one by one.

10. The large modular safety walking bridge device according to claim 9, characterized in that: The safety protection parts are provided in multiple sets, and the multiple sets of the safety protection parts are respectively arranged on the guardrails on both sides to cooperate in providing safety protection for the crew.