Highway bridge tunnel high-altitude detection operation platform with anti-falling protection function
By incorporating extension and buffer components into the high-altitude inspection platform, the problems of small platform area and fall impact force are solved, enabling a wider inspection area and higher safety, while improving inspection efficiency and lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUASHE TESTING TECH CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-22
AI Technical Summary
Existing high-altitude inspection platforms for highway bridges and tunnels lack top protection mechanisms, making them susceptible to damage or personal injury from falling objects. Furthermore, their small size limits their access to wider areas, reducing inspection efficiency and safety.
A high-altitude inspection platform with fall protection was designed, including an extension component and a buffer component. The extension component expands the platform area through a motor-driven gear and rack plate, while the buffer component uses dampers and springs to absorb fall energy and prevent impact damage.
It expands the usable area of the testing platform, improves testing efficiency, reduces the risk of transportation collisions, enhances safety, extends the service life of the platform, and avoids damage and personal injury caused by impact.
Smart Images

Figure CN224266295U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a high-altitude inspection platform for highway bridges and tunnels with fall protection. Background Technology
[0002] With economic development, the scale of highway, bridge, and tunnel construction continues to expand, making post-construction maintenance and inspection crucial. For example, bridges require regular structural integrity checks, while tunnels need inspections of their lining, ventilation, and lighting systems. Aerial work platforms are essential tools for these inspections, and their demand is steadily increasing.
[0003] Existing high-altitude inspection platforms for highway bridges and tunnels lack top protection mechanisms. In the complex engineering environment of highway bridges and tunnels, the impact of falling objects can easily cause serious consequences such as damage to the platform or injury to personnel, reducing the safety of the platform. In addition, the small area of the platform makes it difficult for inspection equipment or personnel to reach a wider area, reducing inspection efficiency. Summary of the Invention
[0004] This utility model addresses the technical problems of lacking a top protective mechanism, which in complex engineering environments such as highway bridges and tunnels, the impact of falling objects can easily cause serious consequences such as damage to the work platform or injury to personnel, reducing the safety of the work platform. In addition, the small area of the work platform makes it difficult for inspection equipment or personnel to reach a wider area, reducing inspection efficiency. Therefore, this utility model provides a high-altitude inspection work platform for highway bridges and tunnels with fall protection.
[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:
[0006] This utility model provides a high-altitude inspection platform for highway bridge tunnels with fall protection, including a base and a top plate. An extension assembly is provided on the base, the extension assembly including a rack plate, a side plate and an extension plate. A motor is fixedly installed at the bottom end of the base. The motor housing is located around the motor. The output shaft of the motor extends into the interior of the base and is rotatably connected to the base through a bearing. A gear is fixedly installed on the output shaft of the motor. Both sides of the gear are meshed with rack plates. An extension plate is fixedly installed on one side of each of the two rack plates. One end of each of the two extension plates extends to the outer end of the base and is fixedly installed with a side plate. A through groove is opened inside each of the two extension plates. One end of each of the two rack plates can extend into the interior of the through groove.
[0007] Fall protection components are provided on the two top plates. Each fall protection component includes a protective plate, a damper, and a spring. Two protective plates are provided on each of the two top plates. A damper is provided between the two protective plates and the top plate. The two ends of the damper are fixedly connected to the protective plate and the top plate, respectively. Springs are sleeved on the outer surface of multiple dampers. The two ends of multiple springs are fixedly connected to the protective plate and the top plate, respectively.
[0008] In this technical solution, multiple guide cylinders are fixedly installed on one side of each of the two side plates. Guide rods are provided between the multiple guide cylinders, and guide plates are fixedly installed at both ends of each of the two guide rods inside the guide cylinders. Both guide plates are slidably connected to the guide cylinders. In this technical solution, limit grooves are formed between the two top plates and the two protective plates. Limit plates are slidably connected inside the multiple limit grooves. Extension plates are provided between the two top plates and the two protective plates, and both ends of the extension plates extend into the limit grooves and are fixedly connected to the limit plates.
[0009] In this technical solution, the inner wall of the base is provided with multiple sliding grooves, and a sliding rod is fixedly installed inside each of the multiple sliding grooves. Two sliders are fixedly installed on each of the two extension plates, and the sliders are slidably connected to the sliding grooves.
[0010] In this technical solution, two support rods are fixedly installed on each of the two side plates, and one end of each support rod is fixedly connected to the two side plates.
[0011] In this technical solution, a support frame is fixedly installed at the bottom end of the base.
[0012] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.
[0013] The positive and progressive effects of this utility model are as follows:
[0014] The aforementioned high-altitude inspection platform for highway bridges and tunnels with fall protection, by setting up an extension component, starts the motor, and the motor's output shaft drives the gear to rotate. The gear drives two rack plates to move, and the two rack plates drive the extension plates to move closer or further apart, which can expand the area of the work platform. This allows the inspection equipment or personnel to reach a wider area and complete the inspection of more parts at once, improving inspection efficiency. At the same time, the two side plates can be stored at the same time, making it convenient for the work platform to be flexibly moved to the target location for inspection. This avoids the difficulty of operating in a small space due to the large platform area, and can also reduce the overall size of the platform. This helps to reduce the risk of collision that may be encountered during transportation due to the large size of the platform, and can better adapt to the traffic environment and ensure transportation safety.
[0015] By setting up a buffer assembly, with the cooperation of multiple spring dampers, when an object falls from a height and hits the top plate, the dampers and springs can effectively buffer the impact force, disperse and absorb the energy of the falling object, reduce the impact force of the falling object on the top plate and the working platform and personnel below, avoid serious consequences such as top plate breakage, working platform damage or personnel injury caused by excessive impact force, and extend the service life of the working platform. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the internal front view of the present invention.
[0018] Figure 3 This is a schematic diagram of the internal structure of the base of this utility model.
[0019] Explanation of reference numerals in the attached figures
[0020] 1. Base; 2. Extension plate; 3. Motor; 4. Gear; 5. Guide rod; 6. Rack plate; 7. Through groove; 8. Slider; 9. Slide groove; 10. Top plate; 11. Protective plate; 12. Extension plate; 13. Damper; 14. Spring; 15. Limiting plate; 16. Limiting groove; 17. Support rod; 18. Guide cylinder; 19. Side plate; 20. Guide plate; 21. Support frame; 22. Slider; 23. Slide rod; 24. Slide groove. Detailed Implementation
[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0023] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated components, elements, or parts to having a specific orientation, or to be constructed and operated in a specific orientation.
[0024] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0025] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two components, elements, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] like Figure 1-3 As shown, the high-altitude inspection platform for highway bridge tunnels with fall protection includes a base 1 and a top plate 10. An extension assembly is provided on the base 1. The extension assembly includes a rack plate 6, a side plate 19, and an extension plate 2. A motor 3 is fixedly installed at the bottom end of the base 1. A motor housing is provided around the motor 3. The output shaft of the motor 3 extends into the interior of the base 1 and is rotatably connected to the base 1 through a bearing. A gear 4 is fixedly installed on the output shaft of the motor 3. The rack plates 6 are meshed on both sides of the gear 4. An extension plate 2 is fixedly installed on one side of each of the two rack plates 6. One end of each of the two extension plates 2 extends to the outer end of the base 1 and is fixedly installed with a side plate 19. A through groove 7 is opened inside each of the two extension plates 2. One end of each of the two rack plates 6 can extend into the interior of the through groove 7.
[0028] Fall protection components are provided on the two top plates 10. Each fall protection component includes a protective plate 11, a damper 13, and a spring 14. Two protective plates 11 are provided on each of the two top plates 10. A damper 13 is provided between each of the two protective plates 11 and the top plate 10. The two ends of the damper 13 are fixedly connected to the protective plate 11 and the top plate 10, respectively. Springs 14 are sleeved on the outer surface of the multiple dampers 13. The two ends of the multiple springs 14 are fixedly connected to the protective plate 11 and the top plate 10, respectively.
[0029] In this technical solution, multiple guide cylinders 18 are fixedly installed on one side of each of the two side plates 19, and guide rods 5 are provided between the multiple guide cylinders 18. Both ends of the two guide rods 5 extend into the interior of the guide cylinders 18 and are fixedly installed with guide plates 20. Both guide plates 20 are slidably connected to the guide cylinders 18.
[0030] In this technical solution, a limiting groove 16 is provided between the two top plates 10 and the two protective plates 11, and a limiting plate 15 is slidably connected inside the multiple limiting grooves 16. An extension plate 12 is provided between the two top plates 10 and the two protective plates 11, and both ends of the two extension plates 12 extend into the interior of the limiting grooves 16 and are fixedly connected to the limiting plate 15.
[0031] In this technical solution, the inner wall of the base is provided with multiple sliding grooves 24, and a sliding rod 23 is fixedly installed inside each of the multiple sliding grooves 24. Two sliders 22 are fixedly installed on each of the two extension plates 2, and the sliders 22 are slidably connected to the sliding grooves 24.
[0032] In this technical solution, two support rods 17 are fixedly installed on each of the two side plates 19, and one end of each support rod 17 is fixedly connected to the two side plates 19.
[0033] In this technical solution, a support frame 21 is fixedly installed at the bottom end of the base 1.
[0034] When in use, all electrical components mentioned in this application are connected to an external power supply and control switch. When the motor 3 is started, the output shaft of the motor 3 drives the gear 4 to rotate. The gear 4 drives the two rack plates 6 to move. The two rack plates 6 drive the extension plates 2 to move closer or further apart, which can expand the area of the working platform, allowing the testing equipment or personnel to reach a wider area and complete the testing of more parts at once, thus improving testing efficiency. At the same time, the two side plates 19 can be stored at the same time, making it convenient for the working platform to be moved flexibly to the target position for testing. This avoids the difficulty of operating in a small space due to the large platform area, and can also reduce the overall size of the platform, which helps to reduce the risk of collision that may be encountered during transportation due to the large platform size. It can better adapt to the traffic environment and ensure transportation safety.
[0035] Multiple guide cylinders 18 can move along the surface of guide rod 5, and both top plates 10 and protective shell 11 can move along the surface of extension plate 12, and can be adjusted with the extension assembly.
[0036] With the cooperation of multiple springs 14 and dampers 13, when an object falls from a height and hits the top plate 10, the dampers 13 and springs 14 can effectively buffer the impact force, disperse and absorb the energy of the falling object, reduce the impact force of the falling object on the top plate 10 and the working platform and personnel below, avoid serious consequences such as the top plate 10 breaking, the working platform being damaged or personnel being injured due to excessive impact force, and extend the service life of the working platform.
[0037] The advantages of this application are:
[0038] 1. By setting up an extension component, the motor 3 is started. The output shaft of the motor 3 drives the gear 4 to rotate. The gear 4 drives the two rack plates 6 to move. Both rack plates 6 drive the extension plate 2 to move closer or further apart, which can expand the area of the working platform, allowing the testing equipment or personnel to reach a wider area and complete the testing of more parts at once, thus improving testing efficiency. At the same time, the two side plates 19 can be stored at the same time, making it convenient for the working platform to be moved flexibly to the target position for testing. This avoids the difficulty of operating in a small space due to the large platform area, and can also reduce the overall size of the platform, which helps to reduce the risk of collision that may be encountered during transportation due to the large platform size. It can better adapt to the traffic environment and ensure transportation safety.
[0039] 2. By setting up a buffer assembly, with the cooperation of multiple springs 14 and dampers 13, when an object falls from a height and hits the top plate 10, the dampers 13 and springs 14 can effectively buffer the impact force, disperse and absorb the energy of the falling object, reduce the impact force of the falling object on the top plate 10 and the working platform and personnel below, avoid serious consequences such as the top plate 10 breaking, the working platform being damaged or personnel being injured due to excessive impact force, and extend the service life of the working platform.
[0040] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.
Claims
1. A high-altitude inspection platform for highway bridge tunnels with fall protection, comprising a base (1) and a top plate (10), characterized in that: An extension assembly is provided on the base (1). The extension assembly includes a rack plate (6), a side plate (19), and an extension plate (2). A motor (3) is fixedly installed at the bottom end of the base (1). A motor housing is provided around the motor (3). The output shaft of the motor (3) extends into the interior of the base (1) and is rotatably connected to the base (1) through a bearing. A gear (4) is fixedly installed on the output shaft of the motor (3). A rack plate (6) is meshed with both sides of the gear (4). An extension plate (2) is fixedly installed on one side of each of the two rack plates (6). One end of each of the two extension plates (2) extends to the outer end of the base (1) and is fixedly installed with a side plate (19). A through groove (7) is opened inside each of the two extension plates (2). One end of each of the two rack plates (6) can extend into the interior of the through groove (7). Fall protection components are provided on the two top plates (10). The fall protection components include protective plates (11), dampers (13) and springs (14). Two protective plates (11) are provided on each of the two top plates (10). A damper (13) is provided between the two protective plates (11) and the top plate (10). The two ends of the damper (13) are fixedly connected to the protective plates (11) and the top plate (10) respectively. Springs (14) are sleeved on the outer surface of multiple dampers (13). The two ends of multiple springs (14) are fixedly connected to the protective plates (11) and the top plate (10) respectively.
2. The high-altitude inspection platform for highway bridges and tunnels with fall protection as described in claim 1, characterized in that: Multiple guide cylinders (18) are fixedly installed on one side of each of the two side plates (19). A guide rod (5) is provided between the multiple guide cylinders (18). Both ends of the two guide rods (5) extend into the interior of the guide cylinders (18) and are fixedly installed with guide plates (20). Both guide plates (20) are slidably connected to the guide cylinders (18).
3. The high-altitude inspection platform for highway bridges and tunnels with fall protection as described in claim 1, characterized in that: Limiting grooves (16) are provided between the two top plates (10) and the two protective plates (11). Limiting plates (15) are slidably connected inside the multiple limiting grooves (16). Extension plates (12) are provided between the two top plates (10) and the two protective plates (11). Both ends of the two extension plates (12) extend into the interior of the limiting grooves (16) and are fixedly connected to the limiting plates (15).
4. The high-altitude inspection platform for highway bridges and tunnels with fall protection as described in claim 1, characterized in that: The inner wall of the base (1) is provided with multiple sliding grooves (24), and a sliding rod (23) is fixedly installed inside each of the multiple sliding grooves (24). Two sliders (22) are fixedly installed on each of the two extension plates (2), and the sliders (22) are slidably connected to the sliding grooves (24).
5. The high-altitude inspection platform for highway bridges and tunnels with fall protection as described in claim 1, characterized in that: Two support rods (17) are fixedly installed on each of the two side plates (19), and one end of each support rod (17) is fixedly connected to the two side plates (19).
6. The high-altitude inspection platform for highway bridges and tunnels with fall protection as described in claim 1, characterized in that: A support frame (21) is fixedly installed at the bottom end of the base (1).