Moving device for steel beams
By designing a mobile device suitable for steel beams, including a support platform, roller assembly, and limiting components, the problems of inconvenient movement and low safety for workers on steel beams were solved, enabling safe and stable high-altitude operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUANENG YUNNAN DIANDONG ENERGY CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, workers are unable to move easily on steel beams, and the safety factor is low, making them prone to falls from heights.
Design a mobile device comprising a support platform, a roller assembly, a limiting component, and a hanger. The support platform is telescopic, the roller assembly travels on a steel beam, the limiting component prevents the device from shifting laterally, and the hanger is used to install safety belts, adapting to steel beams of different sizes and specifications.
It enables safe and stable movement on steel beams, reduces the risks of working at heights, and improves operational convenience and safety.
Smart Images

Figure CN224549592U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-altitude work facilities, specifically to a mobile device for steel beams. Background Technology
[0002] In high-altitude operations involving the installation of steel structures in construction, bridges, and power systems, workers need to move on steel beams. In related technologies, scaffolding or simple walking platforms are used. However, these methods are not only complex to install and inconvenient to move, but also have a low safety factor and are prone to falls from heights. There are safety hazards for workers when moving on I-beams. Utility Model Content
[0003] This utility model aims to at least partially solve one of the technical problems in the related art.
[0004] Therefore, embodiments of this utility model propose a mobile device for steel beams, which is particularly suitable for high-altitude operations in steel structure installation in construction, bridge, power and other fields, enabling workers to move safely and stably on steel beams.
[0005] The steel beam moving device according to an embodiment of the present invention includes a support platform, multiple roller sets, multiple limiting members, and a hanger. The support platform is telescopic in a first direction, which is perpendicular to the extension direction of the steel beam. The roller sets are disposed on one side of the support platform in its thickness direction and are used to travel on the upper surface of the upper flange of the steel beam. The support platform is provided with multiple limiting members on both sides in the first direction. The limiting members are adjacent to or abut against the side surface and lower surface of the upper flange of the steel beam. The hanger is disposed on the support platform and is used to install a safety belt.
[0006] The steel beam moving device of this utility model embodiment can adapt to steel beams of different sizes and specifications. The installation process on the steel beam is convenient and easy to operate, and it can prevent the moving device from detaching from the steel beam, thus reducing the risk of high-altitude operations.
[0007] In some embodiments, the support platform includes a first support plate, a second support plate, and a telescopic member. The first support plate and the second support plate are arranged in the first direction. Both the first support plate and the second support plate are provided with a plurality of the limiting members. One end of the telescopic member is connected to the first support plate, and the other end of the telescopic member is connected to the second support plate.
[0008] In some embodiments, the telescopic member includes a telescopic rod, a sleeve, and a fixing member. One end of the telescopic rod is disposed on the first support plate, and the telescopic rod has a plurality of fixing holes. The sleeve is disposed on the second support plate, and the sleeve has an installation hole. The telescopic rod is slidably sleeved in the sleeve. The fixing member is disposed on the installation hole of the sleeve, and the fixing member is fitted in the fixing hole to fix the telescopic rod and the sleeve.
[0009] In some embodiments, the fastener is a resilient pin.
[0010] In some embodiments, the telescopic member further includes an anti-detachment baffle disposed at the other end of the telescopic rod.
[0011] In some embodiments, the support platform is provided with multiple threaded holes at both ends in the first direction;
[0012] The limiting component includes a limiting post, a limiting baffle, and a side wheel. The limiting post includes a first threaded section, an installation section, and a connecting section. The first threaded section and the connecting section are located at opposite ends of the limiting post. The first threaded section is fitted into the threaded hole. The side wheel is rotatably mounted on the installation section. The limiting baffle is mounted on the connecting section. The limiting baffle is adjacent to the side and lower surfaces of the upper flange of the steel beam.
[0013] In some embodiments, the limiting baffle is L-shaped and includes a first limiting segment and a second limiting segment connected together. The first limiting segment is connected to the connecting segment, and the second limiting segment is opposite to the lower surface of the upper wing plate. The distance between the second limiting segment and the lower surface of the upper wing plate is 3-5 mm.
[0014] In some embodiments, the hanger includes a rod and a hanging ring, one end of the rod is bolted to the support platform, and the other end of the rod is rotatably provided with the hanging ring, which is used to fasten a safety belt.
[0015] In some embodiments, the moving device for the steel beam further includes a lug and a traction rope, the lug being disposed on the support platform, the traction rope being fixed to the lug, and the traction rope being used to pull the moving device. Attached Figure Description
[0016] Figure 1 This is one of the structural schematic diagrams of the steel beam moving device according to an embodiment of this utility model;
[0017] Figure 2 This is the second structural schematic diagram of the moving device for steel beams according to an embodiment of this utility model.
[0018] Figure label:
[0019] 100. Mobile devices;
[0020] 1. Support platform; 11. First support plate; 12. Second support plate; 13. Telescopic component; 131. Telescopic rod; 1311. Fixing hole; 132. Sleeve; 133. Fixing component; 14. Anti-detachment baffle.
[0021] 2. Roller assembly; 21. Mounting base; 22. Rollers;
[0022] 3. Limiting components; 31. Limiting post; 311. First threaded section; 32. Limiting baffle; 321. First limiting section; 322. Second limiting section; 33. Side wheel.
[0023] 4. Hanger; 5. Hook; 6. Towing rope;
[0024] 200. Steel beam; 2001. Upper flange. Detailed Implementation
[0025] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0026] The following describes in detail, with reference to the accompanying drawings, a moving device 100 for steel beams according to an embodiment of the present invention.
[0027] The steel beam moving device 100 of this utility model embodiment includes a support platform 1, multiple roller sets 2, multiple limiting members 3, and a hanging frame 4. The support platform 1 is in a first direction (e.g., Figure 1 It is extendable in the left-right direction, with the first direction perpendicular to the extension direction of the steel beam (e.g., ...). Figure 1 (In the forward and backward direction). Roller assembly 2 is located on one side of the support platform 1 in its thickness direction, and roller assembly 2 is used to travel on the upper surface of the upper flange 2001 of the steel beam 200. The support platform 1 is provided with multiple limiting members 3 on both sides in this first direction, and the limiting members 3 are adjacent to or abut against the side surface and lower surface of the upper flange of the steel beam. Hanger 4 is provided on the support platform 1, and hanger 4 is used to install safety belts.
[0028] In this embodiment of the utility model, the moving device 100 for steel beams is used in the same direction as the width of the steel beam. The operator sits on the support platform 1, and a safety belt is attached to the hanger 4. The operator then pushes the moving device 100 forward. Before use, the dimensions of the support platform 1 in this first direction are adjusted according to the width of the upper flange 2001 of the steel beam 200. This ensures that the limiting member 3 is adjacent to or abuts against the side and lower surfaces of the upper flange of the steel beam, guaranteeing that the upper flange can limit the limiting member 3. This prevents the limiting members 3 on both sides of the support platform 1 from shifting relative to the upper flange 2001 in the left-right and up-down directions, thereby preventing lateral shift of the support platform 1 and thus avoiding displacement or even detachment of the moving device 100 from the steel beam.
[0029] Therefore, the steel beam moving device 100 of this utility model embodiment can adapt to steel beams of different sizes and specifications. The installation process on the steel beam is convenient and easy to operate, which helps to improve the efficiency of personnel operation and can prevent the moving device 100 from detaching from the steel beam 200, thereby reducing the risk of high-altitude operation.
[0030] In some embodiments, the support platform 1 includes a first support plate 11, a second support plate 12, and a telescopic member 13. The first support plate 11 and the second support plate 12 are arranged in a first direction. Both the first support plate 11 and the second support plate 12 are provided with multiple limiting members 3. One end (left end) of the telescopic member 13 is connected to the first support plate 11, and the other end (right end) of the telescopic member 13 is connected to the second support plate 12. The distance between the first support plate 11 and the second support plate 12 is adjusted and fixed by the telescopic member 13 to ensure that the moving device 100 can adapt to steel beams 200 of different widths.
[0031] Specifically, telescopic components 13 are provided on both the front and rear sides of the first support plate 11 and the second support plate 12.
[0032] In some embodiments, the telescopic member 13 includes a telescopic rod 131, a sleeve 132, and a fixing member 133. One end (left end) of the telescopic rod 131 is disposed on the first support plate 11, and the telescopic rod 131 is provided with a plurality of fixing holes 1311. Specifically, the plurality of fixing holes 1311 are arranged at equal intervals. The sleeve 132 is disposed on the second support plate 12, and the sleeve 132 is provided with mounting holes. The telescopic rod 131 is slidably sleeved in the sleeve 132. The fixing member 133 is disposed on the mounting holes of the sleeve 132, and the fixing member 133 is fitted into the fixing holes 1311 to fix the telescopic rod 131 and the sleeve 132. Correspondingly, the lower sides of the first support plate 11 and the second support plate 12 are each provided with a plurality of roller groups 2, and the opposite sides of the first support plate 11 and the second support plate 12 are each provided with a plurality of limiting members 3. Specifically, the left side of the first support plate 11 is provided with two limiting members 3, and the right side of the second support plate 12 is provided with two limiting members 3.
[0033] When the mobile device 100 of this utility model embodiment is installed on the steel beam 200, the other end of the telescopic rod 131 is inserted into the sleeve 132, and the first support plate 11 and the second support plate 12 are placed on the upper wing plate of the steel beam so that the first support plate 11 and the second support plate 12 are close to each other. After the limiting member 3 abuts against the side surface of the upper wing plate 2001, the position of the second support plate 12 is slightly adjusted so that the fixing member 133 corresponds to the fixing hole 1311 on the telescopic rod 131. Then the fixing member 133 is inserted into the fixing hole 1311 to fix the telescopic rod 131 and the sleeve 132, and at the same time fix the first support plate 11 and the second support plate 12.
[0034] The telescopic component 13 of this utility model embodiment has a simple structure, does not require a power source such as an air pump or power supply, and is easy to operate.
[0035] Specifically, this end of the telescopic rod 131 (i.e., the part where the telescopic rod 131 connects to the first support plate 11) does not have a fixing hole 1311. The sleeve 132 is a square sleeve 132. Both the sleeve 132 and the telescopic rod 131 are made of high-strength alloy steel.
[0036] Furthermore, the fixing member 133 is a spring-loaded pin. Specifically, the spring-loaded pin includes a spring portion and a pin portion. One end of the spring portion is fixedly connected to the sleeve 132, and the other end of the spring portion is fixedly connected to the pin portion. The spring portion is sleeved on the pin portion, and the spring portion can generate a force (i.e., a downward force) on the pin portion towards the bottom of the fixing hole 1311, thereby making the fixing member 133 and the fixing hole 1311 (telescopic rod 131) securely fixed. It also facilitates the quick insertion and removal of the fixing member 133 in the fixing hole 1311, making the operation simple.
[0037] The telescopic component 13 further includes an anti-detachment baffle 14, which is located at the other end (right end) of the telescopic rod 131. The anti-detachment baffle 14 forms a limiting node at this other end of the telescopic rod 131. If the fixing component 133 fails, the anti-detachment baffle 14 can prevent the telescopic rod 131 from detaching from the sleeve 132, thereby improving the safety protection level of the support platform 1.
[0038] Specifically, the anti-detachment baffle 14 is fixedly connected to the other end of the telescopic rod 131 by bolts (not shown in the figure).
[0039] In some embodiments, the support platform 1 has multiple threaded holes at both ends in the first direction. Specifically, the left end of the first support platform 1 has two threaded holes, and the right end of the second support platform 1 has two threaded holes. The threaded holes extend in the vertical direction. The limiting member 3 includes a limiting post 31, a limiting baffle 32, and a side wheel 33. The limiting post 31 includes a first threaded section 311, an installation section, and a connecting section. The first threaded section 311 and the connecting section are located at both ends of the limiting post 31, respectively. The first threaded section 311 is fitted into the threaded holes. The side wheel 33 is rotatably disposed on the installation section. The limiting baffle 32 is disposed on the connecting section. The limiting baffle 32 is adjacent to the side surface and the lower surface of the upper flange 2001 of the steel beam 200.
[0040] The limiting post 31 is connected and fixed to the support platform 1 through the first threaded section 311, so that the height of the limiting post 31 can be adjusted by the engagement length of the first threaded section 311 and the threaded hole, thereby ensuring that the limiting baffle 32 and the lower surface of the upper wing plate 2001 are within the set distance range, ensuring that the limiting baffle 32 does not affect the normal movement of the moving device 100 on the upper wing plate 2001, and effectively preventing the moving device 100 from detaching from the upper wing plate 2001.
[0041] The limiting post 31 is equipped with a side wheel 33 via the mounting section, and the side wheel 33 abuts against the side surface of the upper wing plate. When aligning the first support plate 11 and the second support plate 12, the position of the first support plate 11 and the second support plate 12 can be determined by whether the side wheel 33 abuts against the side surface of the upper wing plate 2001. Then, the position of the second support plate 12 is finely adjusted to ensure that the fixing member 133 can be inserted into the fixing hole 1311. It should be noted that the width of the I-beam may have errors and will not be completely consistent. Therefore, when installing this moving device 100 on the steel beam 200, a gap of 2-3mm should be left between the side wheel 33 and the side surface of the upper wing plate 2001 to avoid the side wheel 33 from being unable to roll properly or getting stuck due to the squeezing force between it and the side surface of the upper wing plate 2001.
[0042] Specifically, the side wheel 33 is coated with a polyurethane material layer, which ensures good contact with the steel beam 200 while avoiding direct friction between metals.
[0043] Specifically, the limiting baffle 32 is L-shaped and includes a first limiting segment 321 and a second limiting segment 322 connected together. The first limiting segment 321 is threadedly connected to the connecting segment, and the second limiting segment 322 is opposite to the lower surface of the upper wing plate 2001. The distance between the second limiting segment 322 and the lower surface of the upper wing plate 2001 is 3-5mm. When the moving device 100 tilts unexpectedly, the second limiting segment 322 will lock onto the lower surface of the upper wing plate 2001, and the side wheel 33 will also lock onto the side surface of the upper wing plate 2001, preventing the moving device 100 from detaching from the upper wing plate.
[0044] Specifically, the roller assembly 2 includes a mounting base 21, a roller, a roller 22, and a fixing nut. The mounting base 21 is located on one side of the support platform 1. The roller is a stepped shaft and includes a small-diameter section and a large-diameter section. The large-diameter section is located on one side of the mounting base 21, and the roller 22 is located on the small-diameter section. The small-diameter section has a second threaded section, which is located on the other side of the mounting base 21. The fixing nut is fitted onto the second threaded section to fix the roller and the mounting base 21. That is, the flat end of the large-diameter section abuts against one side of the mounting base 21, and the second fixing nut abuts against the other side of the mounting base 21, thereby fixing the roller and the mounting base 21.
[0045] Specifically, the roller assembly 2 has four sets: two sets of roller assemblies 2 are provided on the lower side of the first support plate 11, and two sets of roller assemblies 2 are provided on the lower side of the second support plate 12.
[0046] Mounting base 21 is constructed of welded steel, providing sufficient rigidity and strength. The mounting base 21 is detachably connected to the support platform 1 for easy maintenance and replacement. Rollers are mounted on the small-diameter section via double-row deep groove ball bearings. These bearings offer flexible rotation and high load-bearing capacity. Wear-resistant bushings are installed between the rollers and the shafts to extend their service life. The roller surfaces are machined with anti-slip textures to increase friction with the upper flange of the steel beam and prevent slippage.
[0047] The hanger 4 includes a rod 41 and a hanging ring 42. One end of the rod 41 is bolted to the support platform 1, and the other end of the rod 41 is rotatably equipped with a hanging ring 42 for securing the safety belt. Specifically, the lower end of the hanger 4 is fixed to the support platform 1 with high-strength bolts. The hanging ring 42 is made of stainless steel and is used to secure the safety belt, thereby preventing the safety belt from becoming tangled.
[0048] The steel beam moving device 100 of this utility model further includes a hanging ear 5 and a traction rope 6. The hanging ear 5 is provided on the support platform 1, and the traction rope 6 is fixed on the hanging ear. The traction rope 6 is used to pull the moving device 100.
[0049] As one specific implementation, the steel beam moving device 100 of this utility model is used for single-person operation and is designed to bear a maximum load of 200kg.
[0050] Taking an 800mm wide I-beam as an example, the specific usage process is as follows:
[0051] Step 1: Pull out the elastic pin, pull the first support plate 11 and the second support plate 12 so that the total width of the support platform 1 is slightly larger than the actual width of the I-beam by about 20mm, and place the mobile device 100 on the steel beam.
[0052] Step 2: Move the second support plate 12 and adjust the telescopic component 13 to adjust the position of the side wheel 33 so that the side wheel 33 and the side surface of the upper flange of the I-beam maintain a gap of 2-3mm. Check the gap between the second limiting section 322 and the lower surface of the upper flange to ensure that it is within the range of 3-5mm. Then insert the elastic pin to fix the first support plate 11 and the second support plate 12.
[0053] Step 3: After confirming that the mobile device is securely installed, the operator climbs onto the support platform and fastens the safety belt to the hanging ring of the bracket 4;
[0054] Step 4: The operator on this device pushes the mobile device along the I-beam to perform high-altitude work; or, the traction rope 6 is fixed on the lug 5, and other personnel pull the traction rope 6 to move the mobile device 100 and the operator.
[0055] Actual tests show that when the mobile device 100 is used on an I-beam made of Q235B material and with a specification of I25a, the single-person operation resistance is less than 50N, and the lateral stability is good. It can still remain on track even when the I-beam is tilted 15° to the left or right.
[0056] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0059] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0060] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A moving device (100) for steel beams, characterized in that, include: A support platform (1) is extendable in a first direction, which is perpendicular to the extension direction of the steel beam; Multiple roller sets (2) are provided on one side of the support platform (1) in its thickness direction, and the roller sets (2) are used to travel on the upper surface of the upper flange of the steel beam. Multiple limiting members (3) are provided on both sides of the support platform (1) in the first direction, and the limiting members (3) are adjacent to or abut against the side surface and lower surface of the upper flange of the steel beam; and Hanger (4), which is mounted on the support platform (1), is used to install safety belts.
2. The steel beam moving device (100) according to claim 1, characterized in that, The support platform (1) includes a first support plate (11), a second support plate (12), and a telescopic member (13). The first support plate (11) and the second support plate (12) are arranged in the first direction. The first support plate (11) and the second support plate (12) are each provided with a plurality of limiting members (3). One end of the telescopic member (13) is connected to the first support plate (11), and the other end of the telescopic member (13) is connected to the second support plate (12).
3. The steel beam moving device (100) according to claim 2, characterized in that, The telescopic component (13) includes a telescopic rod (131), a sleeve (132), and a fixing component (133). One end of the telescopic rod (131) is provided on the first support plate (11), and the telescopic rod (131) is provided with a plurality of fixing holes (1311). The sleeve (132) is provided on the second support plate (12), and the sleeve (132) is provided with an installation hole. The telescopic rod (131) is slidably sleeved in the sleeve (132). The fixing component (133) is provided on the installation hole of the sleeve (132), and the fixing component (133) is fitted in the fixing hole (1311) to fix the telescopic rod (131) and the sleeve (132).
4. The steel beam moving device (100) according to claim 3, characterized in that, The fastener (133) is a flexible pin.
5. The steel beam moving device (100) according to claim 3, characterized in that, The telescopic member (13) further includes an anti-detachment baffle (14), which is located at the other end of the telescopic rod (131).
6. The steel beam moving device (100) according to claim 1, characterized in that, The support platform (1) has multiple threaded holes at both ends in the first direction; The limiting component (3) includes a limiting post (31), a limiting baffle (32), and a side wheel (33). The limiting post (31) includes a first threaded section, an installation section, and a connecting section. The first threaded section and the connecting section are located at both ends of the limiting post (31). The first threaded section is fitted into the threaded hole. The side wheel (33) is rotatably disposed on the installation section. The limiting baffle (32) is disposed on the connecting section. The limiting baffle (32) is adjacent to the side surface and lower surface of the upper flange of the steel beam.
7. The steel beam moving device (100) according to claim 6, characterized in that, The limiting baffle (32) is "L" shaped and includes a first limiting segment (321) and a second limiting segment (322) connected together. The first limiting segment (321) is connected to the connecting segment, and the second limiting segment (322) is opposite to the lower surface of the upper wing plate. The distance between the second limiting segment (322) and the lower surface of the upper wing plate is 3-5mm.
8. The steel beam moving device (100) according to claim 1, characterized in that, The hanger (4) includes a rod (41) and a hanging ring (42). One end of the rod (41) is bolted to the support platform (1), and the other end of the rod (41) is rotatably provided with the hanging ring (42), which is used to fasten the safety belt.
9. The steel beam moving device (100) according to claim 1, characterized in that, It further includes a hanging ear (5) and a traction rope (6), the hanging ear (5) being disposed on the support platform (1), and the traction rope (6) being fixed on the hanging ear (5), the traction rope (6) being used to pull the moving device (100).