Bridge guardrail construction trolley

By designing the sliding rail frame and lifting mechanism of the bridge railing construction trolley, the problems of safety hazards and low construction efficiency in high-altitude operations during bridge railing construction were solved. The trolley components were made easy to move and height-adjustable, thus improving construction efficiency and safety.

CN224363200UActive Publication Date: 2026-06-16CHINA CONSTR SECOND ENG BUREAU LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR SECOND ENG BUREAU LTD
Filing Date
2025-04-11
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The construction of bridge railings presents problems such as safety hazards from working at heights and low construction efficiency, especially the time and manpower required to move the suspended platform equipment after the completion of construction at a single work site.

Method used

A bridge railing construction trolley was designed, which combines a sliding rail frame and a lifting mechanism. The sliding mechanism enables the horizontal movement and height adjustment of the suspended basket components, while the counterweight frame increases stability. The casters and brakes ensure the stability of the trolley, making it adaptable to different construction environments and needs.

Benefits of technology

It improved construction efficiency, reduced safety hazards, enhanced the versatility and practicality of construction trolleys, and ensured the safe and efficient progress of the construction process.

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Abstract

The utility model provides a kind of bridge guardrail construction trolley, belong to bridge construction technology field, including rack skeleton, universal wheel is provided on the outrigger of rack skeleton, rack skeleton's top wall is provided with slide rail frame in left and right direction, and the right end of slide rail frame extends to the right side of rack skeleton, slide rail frame is slidably arranged with sliding mechanism near bottom side, the bottom of sliding mechanism is provided with basket assembly, basket assembly includes the lifting mechanism of setting in the bottom of sliding mechanism, the bottom of lifting mechanism is connected with basket body, the left end of slide rail frame is provided with counterweight frame near bottom side, solve bridge in guardrail construction worker high-altitude work safety problem and in guardrail construction efficiency low, the problem of high cost.
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Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and more specifically, to a bridge railing construction trolley. Background Technology

[0002] In bridge construction, guardrail installation is a crucial step in ensuring bridge safety, involving a series of complex installation, fixing, and commissioning operations. A key challenge in this phase is the safety hazards associated with working at heights. Not only does bridge guardrail installation require working at heights, but rural roads often run beneath the bridges, with frequent pedestrian and vehicular traffic; therefore, construction safety is a primary concern.

[0003] Currently, the common method for guardrail construction is to erect suspended platforms on the bridge deck to transport workers to designated locations for construction. Although this method solves the problem of working at heights to some extent, the relocation of the suspended platform after the completion of construction at a single work site requires a lot of time and manpower, which seriously affects construction efficiency. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a bridge guardrail construction trolley to solve the aforementioned problems.

[0005] This utility model is implemented as follows:

[0006] A bridge railing construction trolley includes a frame frame, with casters mounted on the legs of the frame frame. A slide rail frame is mounted on the top wall of the frame frame in a left-right direction, with the right end of the slide rail frame extending to the right side of the frame frame. A sliding mechanism is slidably mounted on the slide rail frame near its bottom. A suspended platform assembly is mounted at the bottom of the sliding mechanism. The suspended platform assembly includes a lifting mechanism mounted at the bottom of the sliding mechanism, with the bottom of the lifting mechanism connected to the suspended platform body. A counterweight frame is mounted on the left end of the slide rail frame near its bottom.

[0007] In an embodiment of this utility model, the two long sides of the slide rail frame are formed by welding two channel steels together.

[0008] In an embodiment of this utility model, the counterweight frame includes a telescopic rod and a bracket disposed at its bottom, on which counterweights are stacked.

[0009] In an embodiment of this utility model, the telescopic rod includes a first square tube and a second square tube. The first square tube is fixedly disposed on the right end of the slide rail frame near the bottom. The second square tube is sleeved on the outside of the first square tube. The left sides of the first square tube and the second square tube are provided with a plurality of through holes of the same size at equal intervals. The first square tube and the second square tube are fixed together by anchors inserted into the coaxial through holes.

[0010] In an embodiment of this utility model, the sliding mechanism includes a fixed frame welded from channel steel. An upper embedded plate is provided at both ends of the fixed frame near the top. A roller is provided inside the groove of the upper embedded plate. The upper embedded plate is embedded at the edge of the slide rail frame from the bottom. The roller is rotatably disposed in the channel steel.

[0011] In an embodiment of this utility model, a wing plate is provided on the left side of the upper embedded plate, a through hole is provided on the top of the wing plate, and a plurality of through holes of the same size as the wing plate are provided at equal intervals on the bottom of the slide rail frame. The sliding mechanism is fixed on the slide rail frame by anchors.

[0012] In an embodiment of this utility model, the lifting mechanism includes a connecting base plate, a connecting frame and an electric push rod arranged side by side at the bottom of the connecting base plate, and a guide rod. The guide rod extends from the bottom of the connecting frame into the interior, and a connecting block is provided at its other end. The output rod of the electric push rod is hinged to one side of the connecting block.

[0013] In an embodiment of this utility model, there are two lifting mechanisms, and right-angle mounting plates are provided on both sides of the sliding mechanism. The two lifting mechanisms are symmetrically arranged on the sides of the right-angle mounting plates. A hanging rod is hinged to the top of the basket body, and the connecting block of the two lifting mechanisms is fixedly connected to the top of the hanging rod.

[0014] The beneficial effects of this utility model are as follows: This bridge railing construction trolley achieves horizontal movement of the suspended basket assembly through a sliding mechanism on the slide rail frame, and adjusts the height of the suspended basket in conjunction with the lifting mechanism to meet the work needs of construction personnel in different positions. Before operation, the trolley is moved to the construction point and the casters are locked. The stability is increased by the counterweight frame. After the construction personnel enter the suspended basket, the lifting mechanism raises it to an appropriate height, and then the workers push the sliding mechanism to the construction position on the outside of the bridge and fix it. For continuous construction points, the trolley can be moved conveniently and the above process can be repeated. The combined use of the sliding mechanism and the lifting mechanism shortens the time for moving and adjusting the suspended basket and speeds up the construction progress. The design of the counterweight frame and brake casters ensures the stability of the trolley and reduces safety hazards during construction. The trolley can be adjusted according to different construction environments and needs, such as the height of the counterweight frame and the position of the suspended basket, which improves its versatility and practicality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the overall structure provided for the embodiments of this utility model;

[0017] Figure 2 A schematic diagram of the frame structure provided for an embodiment of this utility model;

[0018] Figure 3 A schematic diagram of the counterweight frame provided for an embodiment of this utility model;

[0019] Figure 4 A schematic diagram of the sliding mechanism provided for an embodiment of this utility model;

[0020] Figure 5 A schematic diagram of the lifting mechanism in the suspended basket assembly provided for an embodiment of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the suspended basket body in the suspended basket assembly provided for an embodiment of the present utility model.

[0022] In the diagram: 10. Frame frame; 11. Casters; 20. Slide rail; 30. Counterweight frame; 31. Telescopic rod; 3101. First square tube; 3102. Second square tube; 32. Bracket; 40. Sliding mechanism; 41. Fixing frame; 42. Upper embedded plate; 4201. Wing plate; 43. Roller; 44. Right-angle mounting plate; 50. Suspended basket assembly; 51. Lifting mechanism; 5101. Connecting base plate; 5102. Connecting frame; 5103. Connecting block; 5104. Guide rod; 5105. Electric actuator; 52. Hanging rod; 53. Suspended basket body. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] like Figure 1-2 As shown, this utility model provides a bridge railing construction trolley, including a frame frame 10. The frame frame 10 has four legs equipped with casters 11. A slide rail frame 20 is arranged on the top wall of the frame frame 10 in the left and right directions, with the right end of the slide rail frame 20 extending to the right side of the frame frame 10. A sliding mechanism 40 is slidably arranged near the bottom of the slide rail frame 20. A suspended basket assembly 50 is arranged at the bottom of the sliding mechanism 40. The suspended basket assembly 50 includes a lifting mechanism 51 arranged at the bottom of the sliding mechanism 40. The bottom of the lifting mechanism 51 is connected to the suspended basket body 53. A counterweight frame 30 is arranged on the left end of the slide rail frame 20 near the bottom. The counterweight frame 30 ensures the stability of the trolley, preventing it from tipping over.

[0026] In a preferred embodiment, the casters 11 are fumaroles with brakes, and two are arranged side by side on each leg.

[0027] In this embodiment, the two long sides of the slide rail frame 20 are formed by welding two channel steels together, and the openings of the two channel steels form a track for the sliding mechanism 40 to move.

[0028] like Figure 3 As shown, the counterweight frame 30 includes a telescopic rod 31 and a bracket 32 ​​disposed at its bottom, on which counterweights are stacked.

[0029] The telescopic rod 31 includes a first square tube 3101 and a second square tube 3102. The first square tube 3101 is fixedly installed on the right end of the slide rail frame 20 near the bottom. The second square tube 3102 is sleeved on the outside of the first square tube 3101. Several through holes of the same size are opened at equal intervals on the left side of the first square tube 3101 and the second square tube 3102. The first square tube 3101 and the second square tube 3102 are fixed together by anchors inserted into the coaxial through holes. In the normal state, the telescopic rod 31 is retracted, so that the bracket 32 ​​is suspended in mid-air to avoid obstructing the movement of the trolley. When the trolley moves to the construction point and the trolley wheel is locked, the second square tube 3102 is moved downward, so that the bracket 32 ​​is moved to the ground. Then the telescopic rod 31 is fixed by anchors. At this time, counterweights, such as cement bags or bricks, are stacked on the bracket 32.

[0030] like Figure 4As shown, the sliding mechanism 40 includes a fixed frame 41 welded from channel steel. The two ends of the fixed frame 41 are provided with an upper embedded plate 42 near the top. A roller 43 is provided inside the groove of the upper embedded plate 42. The upper embedded plate 42 is embedded from the bottom of the slide rail frame 20 at its edge. At this time, the roller 43 is rolled in the side groove of its channel steel.

[0031] Furthermore, a wing plate 4201 is provided on the left side of the upper embedded plate 42. A through hole is provided on the top of the wing plate 4201. Several through holes of the same size as the wing plate 4201 are provided at equal intervals on the bottom of the slide rail frame 20. The sliding mechanism 40 is fixed to the slide rail frame 20 by anchors.

[0032] To increase safety, when the trolley moves to the edge of the bridge, the sliding mechanism 40 is moved to the area below the frame 10. When the construction workers enter the suspended platform body 53, other workers assist in moving the sliding mechanism 40 to the far right. Finally, the sliding mechanism 40 is fixed with anchor bolts. At the same time, during the regular movement of the trolley, when the sliding mechanism 40 is moved to the side closer to the middle of the slide rail frame 20, its volume is reduced, the force is more evenly distributed, and the movement is more stable.

[0033] like Figure 5-6 As shown, the lifting mechanism 51 includes a connecting base plate 5101. A connecting frame 5102 and an electric push rod 5105 are arranged side by side at the bottom of the connecting base plate 5101. It also includes a guide rod 5104, which extends from the bottom of the connecting frame 5102 into the interior. A connecting block 5103 is provided at its other end. The output rod of the electric push rod 5105 is hinged to one side of the connecting block 5103.

[0034] Furthermore, there are two lifting mechanisms 51, and right-angle mounting plates 44 are provided on both sides of the sliding mechanism 40. The two lifting mechanisms 51 are symmetrically arranged on the sides of the right-angle mounting plates 44. The top of the suspended basket body 53 is hinged with a hanging rod 52, and the connecting block 5103 of the two lifting mechanisms 51 is fixedly connected to the top of the hanging rod 52.

[0035] The lifting mechanism 51 facilitates the adjustment of the height of the suspended platform body 53 on the outside of the bridge, which is convenient for construction.

[0036] It should be noted that the lifting mechanism 51 also includes a corresponding power source, which is located on the top of the frame 10. This is a conventional existing configuration and is therefore not shown in the figure.

[0037] Specifically, the working principle of this bridge railing construction trolley is as follows: When in use, the trolley is moved to the edge of the bridge at the target location, the caster wheels are locked to fix the trolley, and then the counterweight frame 30 is adjusted so that its bracket 32 ​​moves to the ground. Counterweights are stacked on the bracket 32 ​​to ensure the stability of the trolley. At this time, the suspended basket assembly 50 is slid to the side near the center via the sliding mechanism 40, and the lifting mechanism 51 moves the suspended basket body 53 to the ground. After the construction personnel enter the suspended basket, it is lifted into the air. Then, another worker assists in pushing the suspended basket body 53 to the right side of the slide rail frame 20. The construction personnel on the suspended basket body 53 lock the sliding mechanism 40 with anchor bolts, and then the lifting mechanism 51 raises and lowers the suspended basket body 53 to a suitable position for construction. For continuous construction points in the horizontal direction, the workers on the bridge can cooperate to move the trolley. Through the above structure, the safety problems of workers working at height and the problems of low efficiency and high cost in the construction of bridge railings are solved.

[0038] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A bridge railing construction trolley, characterized in that, The system includes a frame frame (10), with casters (11) on the legs of the frame frame (10). A slide rail frame (20) is provided on the top wall of the frame frame (10) in the left and right directions, and the right end of the slide rail frame (20) extends to the right side of the frame frame (10). A sliding mechanism (40) is slidably provided on the side of the slide rail frame (20) near the bottom. A basket assembly (50) is provided at the bottom of the sliding mechanism (40). The basket assembly (50) includes a lifting mechanism (51) provided at the bottom of the sliding mechanism (40). The bottom of the lifting mechanism (51) is connected to the basket body (53). A counterweight frame (30) is provided on the left end of the slide rail frame (20) near the bottom.

2. The bridge railing construction trolley according to claim 1, characterized in that, The two long sides of the slide rail frame (20) are formed by welding two channel steels together.

3. The bridge railing construction trolley according to claim 1, characterized in that, The counterweight frame (30) includes a telescopic rod (31) and a bracket (32) at its bottom, on which counterweights are stacked.

4. A bridge railing construction trolley according to claim 3, characterized in that, The telescopic rod (31) includes a first square tube (3101) and a second square tube (3102). The first square tube (3101) is fixedly installed on the right end of the slide rail frame (20) near the bottom. The second square tube (3102) is sleeved on the outside of the first square tube (3101). The first square tube (3101) and the second square tube (3102) are provided with several through holes of the same size at equal intervals on the left side. The first square tube (3101) and the second square tube (3102) are fixed together by anchors inserted into the coaxial through holes.

5. A bridge railing construction trolley according to claim 2, characterized in that, The sliding mechanism (40) includes a fixed frame (41) welded from channel steel. The fixed frame (41) has an upper embedded plate (42) at both ends near the top. The upper embedded plate (42) has a roller (43) inside the slot. The upper embedded plate (42) is embedded at the edge of the slide rail frame (20) from the bottom. The roller (43) is rolled in the channel steel.

6. A bridge railing construction trolley according to claim 5, characterized in that, The upper embedded plate (42) is provided with a wing plate (4201) on the left side. The top of the wing plate (4201) is provided with a through hole. The bottom of the slide rail frame (20) is provided with several through holes of the same size as the wing plate (4201) at equal intervals. The sliding mechanism (40) is fixed on the slide rail frame (20) by anchor nails.

7. A bridge railing construction trolley according to claim 5, characterized in that, The lifting mechanism (51) includes a connecting base plate (5101), on which a connecting frame (5102) and an electric push rod (5105) are arranged side by side. It also includes a guide rod (5104), which extends from the bottom of the connecting frame (5102) into the interior, and has a connecting block (5103) at its other end. The output rod of the electric push rod (5105) is hinged to one side of the connecting block (5103).

8. A bridge railing construction trolley according to claim 7, characterized in that, There are two lifting mechanisms (51), and right-angle mounting plates (44) are provided on both sides of the sliding mechanism (40). The two lifting mechanisms (51) are symmetrically arranged on the side of the right-angle mounting plates (44). The top of the basket body (53) is hinged with a hanging rod (52), and the connecting block (5103) of the two lifting mechanisms (51) is fixedly connected to the top of the hanging rod (52).