Suspension type manned mobile inspection device

By installing a suspended, manned mobile inspection device with sliding components on the bridge railing, the problems of complex installation, significant safety hazards, and low efficiency in inspecting the gap area of ​​parallel bridges have been solved, achieving efficient and safe bridge inspection.

CN224591313UActive Publication Date: 2026-08-04CHINA RAILWAY 19TH BUREAU GRP EAST CHINA ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY 19TH BUREAU GRP EAST CHINA ENG CO LTD
Filing Date
2025-07-30
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing technologies for inspecting the gap area of ​​parallel bridges suffer from problems such as complex installation, significant safety hazards, low inspection efficiency, inability to carry large-scale testing equipment, and difficulty in conducting comprehensive inspections.

Method used

A suspended, manned mobile inspection device is designed. By setting sliding components on both sides of the frame, it forms a sliding engagement with the bridge railing, providing a stable manned platform. Inspectors can carry large inspection instruments on the platform and carry out continuous inspections through the sliding components.

Benefits of technology

It improves the accuracy and efficiency of inspections, simplifies the installation process, reduces the impact on bridge structures, ensures the safety of inspection personnel and the stability of equipment, adapts to different bridge widths, and reduces equipment investment and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to bridge inspection accessory device technical field, especially a kind of suspension type movable inspection device of carrying people.It is simple in structure to be installed conveniently to effectively improve the efficiency of bridge detection operation to the suspension type movable inspection device of carrying people provided in the utility model embodiment, and two sliding components are set in the opposite sides of frame, for hanging on the guardrail of two side bridges, sliding component can slide along the extension direction of guardrail.
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Description

Technical Field

[0001] This utility model relates to the technical field of bridge inspection auxiliary devices, and in particular to a suspended mobile inspection device that can carry people. Background Technology

[0002] As a crucial transportation infrastructure, the safety and performance of bridges directly impact the normal operation of transportation. In practice, highway bridges typically consist of two parallel, independent bridges with a gap between them. The substructure of these gap areas (such as piers, beams, and supports) requires regular inspection and maintenance, but the confined space presents significant challenges to this work.

[0003] Currently, the inspection of gap areas between parallel bridges mainly employs the following methods: One method is using a suspended platform. This method requires setting up lifting points on both bridges, which is complex and time-consuming. Furthermore, the suspended platform is prone to collisions with the bridge structure in the narrow gap, posing a significant safety hazard. Additionally, moving the platform requires repeatedly installing lifting points, resulting in low inspection efficiency. Another method is using a simple sliding device. Inspectors are suspended from the railing of one side of the bridge by safety ropes. While this method is simple to install, inspectors are suspended in mid-air, making it difficult to carry a large amount of testing equipment and to conduct a comprehensive inspection of the bridge structure in the gap area. Utility Model Content

[0004] This utility model provides a suspended mobile inspection device that can carry people. The suspended mobile inspection device has a simple structure, is easy to install, and effectively improves the efficiency of bridge inspection operations.

[0005] This utility model provides a suspended mobile inspection device for carrying people, including: a frame with a space for carrying people; and two sliding components disposed on opposite sides of the frame for hanging on the guardrails of the bridge on both sides, the sliding components being able to slide along the extension direction of the guardrails.

[0006] In one possible implementation, each sliding component includes: a sliding frame connected to the frame; and a pulley system rotatably mounted on the sliding frame and abutting against the surface of the guardrail.

[0007] In one possible implementation, the pulley block includes: a first pulley disposed at the bottom of the sliding frame for abutting against the top surface of the guardrail; and a second pulley disposed at the end of the sliding frame away from the frame for abutting against the side of the guardrail opposite to the frame.

[0008] In one possible implementation, the number of first pulleys is two or more and / or the number of second pulleys is two or more.

[0009] In one possible implementation, at least one of the two sliding frames is a retractable structure.

[0010] In one possible implementation, the sliding frame includes: a fixed part, which is fixedly connected to the frame; and a sliding part, which is slidably connected to the fixed part and is capable of sliding toward or away from the frame.

[0011] In one possible implementation, one end of the fixed part is provided with a slot for sliding guidance, and one end of the sliding part is slidably inserted into the slot.

[0012] In one possible implementation, the retractable structure also includes fasteners for locking the sliding portion.

[0013] In one possible implementation, the fastener is a locking cap, which is threadedly connected to the fixing part. The end of the fixing part is provided with a notch, and the locking cap generates radial pressure at the notch by being threadedly connected to the fixing part, thereby locking the sliding part.

[0014] In one possible implementation, the fastener is a pin that is perpendicular to the end of the fixing part, and the fixing part has a through hole that mates with the pin. The pin passes through the through hole to lock the sliding part.

[0015] This utility model provides a suspended, manned mobile inspection device. By installing sliding components on both sides of the frame, the device can simultaneously slide against the guardrails on both sides of the parallel bridge, eliminating the need for complex installation procedures. The frame is suspended between the guardrails via the two sliding components, forming a stable manned platform. Inspectors do not need to work in mid-air and can conduct inspections on this stable platform. This structural design allows inspectors to carry larger testing instruments, significantly improving inspection accuracy. The frame can slide continuously along the guardrails via the sliding components on both sides, enabling continuous inspection of the bridge's gap areas. This sliding function avoids the problems of frequent relocation and reinstallation required by traditional inspection methods, greatly improving inspection efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of a suspended, mobile inspection device for carrying people provided by this utility model.

[0018] Figure 2This is a three-dimensional structural diagram of another suspended mobile inspection device for carrying people provided by this utility model.

[0019] Figure 3 This is a structural diagram of a suspended, mobile inspection device for carrying people, provided by this utility model, during operation.

[0020] Figure 4 yes Figure 3 A magnified schematic diagram of the structure at point A.

[0021] Figure 5 This is a schematic diagram of the structure of another hanging mobile inspection device for carrying people provided by this utility model during operation.

[0022] Figure label: a. Guardrail 1. Frame; 11. Accommodation space; 12. Base plate; 2. Sliding assembly; 21. Sliding frame; 211. Fixing part; 2111. Notch; 212. Sliding part; 213. Fastener; 2131. Locking cap; 2132. Pin; 22. Pulley block; 221. First pulley; 222. Second pulley. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] The following is combined Figure 1-5 This invention describes a suspended, mobile inspection device capable of carrying people, comprising a frame 1 and two sliding components 2, wherein: The frame 1 has a man-carrying space 11. Specifically, the man-carrying space 11 is provided in the middle of the frame 1, and a base plate 12 is provided at the bottom of the frame 1. The base plate 12 is used to carry people or place testing instruments. The frame 1 includes crossbeams and vertical beams to improve the protection of workers.

[0025] Two sliding components 2 are disposed on opposite sides of the frame 1 and are used to hang on the guardrails a of the bridge on both sides. The sliding components 2 can slide along the extension direction of the guardrails a.

[0026] In this invention, by setting sliding components 2 on both sides of the frame 1, the inspection device can simultaneously slide with the guardrails a on both sides of the parallel bridge, eliminating the need for complex installation procedures. The frame 1 is suspended between the guardrails a on both sides by the two sliding components 2, forming a stable platform for personnel. Inspectors do not need to work in mid-air and can carry out inspections on a stable platform. This structural design allows inspectors to carry larger testing instruments, significantly improving the accuracy of the inspection. The frame 1 can slide continuously along the guardrails a through the sliding components 2 on both sides, enabling continuous inspection of the gap area of ​​the bridge. This sliding function avoids the problems of frequent relocation and repeated installation required by traditional inspection methods, greatly improving inspection efficiency.

[0027] Specifically, the device can be directly suspended from the guardrails a on both sides of the bridge without the need for additional support structures or auxiliary devices, significantly simplifying the installation process. In practical applications, inspectors only need to hang the sliding component 2 on the guardrail a to complete the installation, and the entire process can be completed within 10 minutes. Compared with the traditional method that requires scaffolding or the use of a lifting platform, this greatly improves work efficiency. The personnel-carrying space 11 set on the frame 1 allows inspectors to stand and work, avoiding the danger of inspectors working in the air in traditional suspended inspection methods. The design of the sliding component 2, which can slide along the extension direction of the guardrail a, allows inspectors to move continuously while maintaining a stable working state, expanding the inspection range of a single installation and improving inspection efficiency. At the same time, this structural design also reduces the local stress on the bridge guardrail a, reducing the impact on the bridge structure.

[0028] In some embodiments, each sliding component 2 includes: a sliding frame 21 connected to the frame 1; and a pulley group 22 rotatably disposed on the sliding frame 21 and abutting against the surface of the guardrail a.

[0029] In this invention, the structure of a sliding frame 21 and a pulley block 22 within the sliding assembly 2 effectively solves the problems of unstable movement and high wear in traditional sliding devices. The connection between the sliding frame 21 and the frame 1 provides stable support, ensuring the structural stability of the entire device during movement. The pulley block 22 allows the device to slide smoothly on the guardrail a, reducing friction during movement and enabling inspectors to easily push the device. In practical applications, even with two inspectors and inspection equipment, a single person can easily push the device. The contact method between the pulley block 22 and the surface of the guardrail a prevents scratches or wear, extending the device's service life and protecting the bridge guardrail a. This structural design allows inspectors to maintain a stable working state during inspection operations, improving work efficiency and safety.

[0030] In some embodiments, the pulley assembly 22 includes: a first pulley 221 disposed at the bottom of the sliding frame 21 for abutting against the top surface of the guardrail a; and a second pulley 222 disposed at the end of the sliding frame 21 away from the frame 1, the second pulley 222 for abutting against the side of the guardrail a away from the frame 1.

[0031] In this invention, the specific arrangement of the first pulley 221 and the second pulley 222 solves the technical problems of easy swaying and poor stability in traditional suspended devices. The first pulley 221 is located at the bottom of the sliding frame 21 and abuts against the top surface of the guardrail a, mainly bearing the vertical load of the device and ensuring its load-bearing stability. The second pulley 222 is located at the end away from the frame 1 and abuts against the side of the guardrail a away from the frame 1. This arrangement forms a wrapping fixation for the guardrail a, effectively preventing the device from tilting or swaying during use. In practical applications, even in winds reaching level 4, the device can still maintain a stable working state, allowing inspectors to safely conduct bridge inspections. The synergistic effect of the two pulleys ensures that the device remains stable during movement, without jamming or swaying, improving the continuity and efficiency of inspection work.

[0032] In some embodiments, the number of first pulleys 221 is two or more and / or the number of second pulleys 222 is two or more.

[0033] This invention solves the technical problems of limited load-bearing capacity and easy wear of a single pulley by setting two or more first pulleys 221 and / or second pulleys 222. The arrangement of multiple first pulleys 221 allows for even distribution of vertical load, reducing the stress on a single pulley and extending its service life. In practical applications, the device maintains stable operation even with a load of 300kg. The arrangement of multiple second pulleys 222 enhances the lateral stability of the device, effectively preventing swaying during movement. A suitable pulley configuration can be selected according to actual usage requirements, ensuring both performance requirements and economic efficiency.

[0034] Specifically, there are four first pulleys 221 arranged in a matrix to improve the balance of the support; there are two second pulleys 222 to ensure the smoothness of the sliding process.

[0035] In some embodiments, at least one of the two sliding frames 21 is a retractable structure.

[0036] In this invention, a telescopic structure is incorporated into the sliding frame 21, solving the technical problem of poor adaptability of traditional fixed-size devices. The telescopic structure allows the device to adapt to bridges of varying widths, significantly improving its versatility. In practical applications, the same device can be used on various bridges with deck widths ranging from 3 to 6 meters, greatly reducing equipment investment costs. This structure also facilitates the transportation and storage of the device; the sliding frame 21 can be retracted to reduce the overall volume when transportation is required. Furthermore, the telescopic design allows the device to adjust its working position according to inspection needs, enabling inspectors to better access the bridge sections requiring inspection and improving inspection accuracy.

[0037] Specifically, the sliding frame 21 can extend and retract in a direction perpendicular to the extension direction of the bridge. One of the sliding frames 21 can be set as a telescopic structure to simplify the structure and ensure its stability; or both sliding frames 21 can be set as telescopic structures.

[0038] In some embodiments, the sliding frame 21 includes: a fixing part 211, which is fixedly connected to the frame 1; and a sliding part 212, which is slidably connected to the fixing part 211, and the sliding part 212 can slide toward or away from the frame 1.

[0039] In this invention, the specific structural design of the fixing part 211 and the sliding part 212 provides a reliable technical solution for a telescopic structure. The fixing part 211 is fixedly connected to the frame 1, ensuring the stability of the overall structure; the sliding connection design between the sliding part 212 and the fixing part 211 enables flexible adjustment of the device width. The design of the sliding part 212, which can slide towards or away from the frame 1, allows the operator to adjust the inspection position according to actual needs. This structural design allows the device to complete width adjustment within 5 seconds, greatly improving work efficiency. At the same time, the structural design of the fixing part 211 and the sliding part 212 ensures stability even when bearing the weight of the inspectors and equipment, and can withstand a load of 400kg even in the maximum extended state without affecting the structural strength. This split-type structural design also facilitates the maintenance and replacement of components, reducing later maintenance costs.

[0040] In some embodiments, one end of the fixing part 211 is provided with a slot for sliding guidance, and one end of the sliding part 212 is slidably inserted into the slot.

[0041] In this invention, by providing a sliding guide slot at the end of the fixed part 211 and allowing the end of the sliding part 212 to slide into it, the technical problems of inaccurate guidance and easy jamming in traditional telescopic structures are solved. The guiding function of the slot ensures that the sliding part 212 maintains the correct movement trajectory during telescopic movement, avoiding deviation and jamming. Even after long-term use, this structure can still maintain smooth telescopic movement, requiring no frequent maintenance. The matching design of the slot and the sliding part 212 also has dustproof and waterproof functions, reducing the impact of dust and rainwater on the sliding mechanism and extending the service life of the equipment. In addition, this structural design can maintain a stable stress state during telescopic movement, avoiding the shaking and vibration problems that are prone to occur in traditional telescopic structures.

[0042] In some embodiments, the retractable structure further includes a fastener 213 for locking the sliding portion 212.

[0043] In this invention, the design of locking the sliding part 212 by adding a fastener 213 effectively solves the problem of accidental loosening that may occur during the use of the telescopic structure. The fastener 213 ensures that the device remains fixed at any telescopic position, guaranteeing the safety of inspection operations. In practical applications, even when working in environments with significant vibration, the locked device will not change position. This locking mechanism design allows operators to quickly complete position adjustment and fixing, typically taking only 10 seconds to complete the entire adjustment and locking process. Simultaneously, the fastener 213 also increases the safety and reliability of the device, preventing safety accidents caused by accidental loosening.

[0044] In some embodiments, the fastener 213 is a locking cap 2131, which is threadedly connected to the fixing part 211. The fixing part 211 has a notch 2111 at its end. The locking cap 2131 generates radial pressure at the notch 2111 by being threadedly connected to the fixing part 211, thereby locking the sliding part 212.

[0045] In this invention, a locking cap 2131 is used as the fastener 213, and a radial pressure is generated at the notch 2111 through a threaded connection, providing a simple and reliable locking solution. This structural design allows operators to complete the locking operation with a simple rotational motion, without the need for specialized tools. The notch 2111 design ensures that the locking force is evenly distributed, avoiding localized stress concentration and extending the service life of the component. This locking method provides sufficient locking force, preventing loosening even under full load. Simultaneously, this structural design also has a self-locking function, maintaining a stable locking state even in vibration environments. Furthermore, the threaded connection design of the locking cap 2131 allows operators to adjust the locking force as needed, improving the flexibility of use.

[0046] In some embodiments, the fastener 213 is a pin 2132 that is perpendicular to the end of the fixing part 211. The fixing part 211 is provided with a through hole that cooperates with the pin 2132. The pin 2132 passes through the through hole to lock the sliding part 212.

[0047] This invention provides a quick and convenient locking method by using a pin 2132 as the fastener 213. The vertical alignment of the pin 2132 with the fixing part 211 simplifies installation and disassembly. Locking via a through-hole in the fixing part 211 ensures reliable locking. Locking with the pin 2132 takes only 2-3 seconds, faster than threaded connections. The pin 2132 also has an anti-dislodgement function, preventing accidental detachment even under severe vibration. Furthermore, this design has low maintenance costs; damaged pins can be quickly replaced without affecting normal equipment operation.

[0048] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A suspended, manned mobile inspection device, characterized in that, include: The frame (1) has a manned space (11). Two sliding components (2) are disposed on opposite sides of the frame (1) for hanging on the guardrails of the bridge on both sides. The sliding components (2) can slide along the extension direction of the guardrail. Each of the sliding components (2) includes: a sliding frame (21) connected to the frame (1); and a pulley group (22) rotatably disposed on the sliding frame (21) and abutting against the surface of the guardrail. At least one of the two sliding frames (21) is a telescopic structure. The sliding frame (21) includes: a fixed part (211) which is fixedly connected to the frame (1); and a sliding part (212) which is slidably connected to the fixed part (211). The sliding part (212) can slide toward or away from the frame (1).

2. The suspended, manned mobile inspection device of claim 1, wherein, The pulley system (22) includes: The first pulley (221) is located at the bottom of the sliding frame (21) and is used to abut against the top surface of the guardrail; The second pulley (222) is disposed at the end of the sliding frame (21) away from the frame (1), and the second pulley (222) is used to abut against the side of the guardrail away from the frame (1).

3. The suspended, manned mobile inspection device of claim 2, wherein, The number of the first pulley (221) is two or more; And / or, the number of the second pulley (222) is more than two.

4. The suspended, manned mobile inspection device of claim 1, wherein, One end of the fixing part (211) is provided with a slot for sliding guidance, and one end of the sliding part (212) is slidably inserted into the slot.

5. The suspended, manned mobile inspection device of claim 4, wherein, The retractable structure also includes fasteners (213) for locking the sliding part (212).

6. The suspended, manned mobile inspection device of claim 5, wherein, The fastener (213) is a locking cap (2131), which is threadedly connected to the fixing part (211). The end of the fixing part (211) is provided with a notch (2111). The locking cap (2131) generates radial pressure at the notch (2111) by being threadedly connected to the fixing part (211) to lock the sliding part (212).

7. The suspended, manned mobile inspection device of claim 5, wherein, The fastener (213) is a pin (2132) that is perpendicular to the end of the fixing part (211). The fixing part (211) is provided with a through hole that cooperates with the pin (2132). The pin (2132) passes through the through hole to lock the sliding part (212).