L-shaped maintenance channel

By designing an L-shaped maintenance access road, the problem of insufficient cantilever length for bridge maintenance vehicles was solved, providing a stable and safe access method and meeting the maintenance needs of large steel structure bridge construction.

CN224063282UActive Publication Date: 2026-03-31CHINA COMM SECOND PUBLIC OFFICE EAST CHINA CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing bridge maintenance vehicles have insufficient cantilever length, which cannot meet the construction needs of large steel structure bridges. Furthermore, the traditional method of opening holes damages the main structure, making it difficult for construction personnel to enter the bridge maintenance vehicle for inspection and repair.

Method used

Design an L-shaped maintenance access road, including a vertical ladder and a horizontal passage, which are connected by columns, steps, poles, beams and enclosure structure to form a stable and safe passage connecting the bridge and maintenance vehicle, providing a convenient access method.

Benefits of technology

This allows construction workers to safely and reliably enter the bottom of the bridge for inspection and maintenance, avoiding damage to the main structure and meeting the construction requirements of large steel structure bridges.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an L-shaped overhaul channel, which relates to the technical field of bridge overhaul construction, and comprises a vertical ladder stand, a transverse channel and a first fence structure, the vertical ladder stand is provided with a plurality of groups of upright posts and steps, the transverse channel is vertically connected to the vertical ladder stand, and the first fence structure is arranged on the transverse channel. The transverse channel is composed of a plurality of sets of vertical rods, transverse rods, bottom cross beams and distribution beams, the transverse channel is connected to a cantilever of a bridge through the vertical rods, and the first fence structures are arranged on the periphery of the vertical channel, the outer portion of the transverse channel and the bottom of the transverse channel. According to the utility model, an L-shaped channel structure is arranged, so that constructors can conveniently enter the maintenance car from a bridge floor, the damage to a bridge steel structure is reduced, and the maintenance construction efficiency of workers is improved while the safety is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bridge maintenance construction, concretely relates to a L type maintenance access. BACKGROUND

[0002] In the large steel structure bridge construction process, the current bridge maintenance vehicle cantilever length is about 18-22 meters, does not satisfy the large steel structure bridge construction demand, therefore adopts the track connection bridge maintenance vehicle under the steel structure bridge and can satisfy the construction demand, so how from the bridge surface enters the inside of bridge maintenance vehicle becomes the difficult problem of each construction unit.

[0003] Because the traditional hole opening mode on the steel structure bridge enters the bridge maintenance vehicle and can damage the main structure, reduces the service life of steel, along with the development of bridge industry, the emergence of the maintenance access structure solves the problem of this type well, therefore, the application designs a L type maintenance access structure. UTILITARIAN CONTENT

[0004] In view of the above existing L type maintenance access problem, the utility model is provided.

[0005] Therefore, the utility model aims at providing a L type maintenance access, solves the problem that the existing L type maintenance access may have the engineering plastic group in the screening process on the screen, leads to unable to carry out sufficient screening, and also difficult to screen the engineering plastics of different sizes, affects the screening efficiency, and after screening, the engineering plastics are difficult to collect, need manual cleaning, increases the burden of staff, leads to the accumulation of more and more specifications of the engineering plastics on the screen, and the efficiency of the whole screening is affected.

[0006] In order to realize the above object, the utility model provides the following technical scheme:

[0007] A L type maintenance access, comprising a vertical ladder, a horizontal channel and a plurality of first enclosure structures, the vertical ladder is provided with a plurality of groups of stand columns and steps, the horizontal channel is provided with a plurality of groups of stand rods, crossbars, bottom cross beams and distribution beams, the first enclosure structure is arranged around the vertical ladder, the outside and the bottom of the horizontal channel.

[0008] Preferably, the vertical ladder is connected with the bridge deck at 90°, the vertical ladder is connected with the horizontal channel at 90° L type, and the horizontal channel is connected with the maintenance vehicle at 90°.

[0009] Preferably, the horizontal channel is connected with the cantilever of the bridge through the stand rod.

[0010] Preferably, the first enclosure structure is arranged outside and bottom of the transverse channel, and the second enclosure structure is connected by rotating the shaft 0-90 degrees.

[0011] Preferably, the transverse channel is provided with a plurality of vertical connection of vertical rods to the cross beam, and a plurality of vertical connection of the distribution beam to the two groups of bottom cross beams.

[0012] Preferably, the vertical ladder is provided with a plurality of vertical connection of steps to the four groups of vertical columns.

[0013] In the above technical solution, the technical effect and advantages provided by the utility model are:

[0014] 1. The L-shaped maintenance channel structure, through the bridge deck and the maintenance channel 90°, the structure 90°, the maintenance channel and the maintenance vehicle 90° can be applied to irregular large steel structure bridge construction personnel cannot enter the bottom of the bridge to check and repair work.

[0015] 2. The L-shaped maintenance channel structure, by setting the enclosure structure around the vertical ladder and the transverse channel to ensure the safety of the construction personnel entering the maintenance channel, and by setting the shaft and the enclosure structure near the maintenance vehicle position of the transverse channel to provide convenience for the construction personnel entering the inside of the maintenance vehicle.

[0016] 3. The L-shaped maintenance channel structure, by setting the vertical rod of the transverse channel to be connected to the cantilever of the steel structure bridge, the stability of the maintenance channel structure is increased. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 A structure diagram of the L-shaped maintenance channel is provided for the utility model;

[0019] Figure 2 A front view of the vertical ladder structure of the L-shaped maintenance channel is provided for the utility model;

[0020] Figure 3 A side view of the transverse channel structure of the L-shaped maintenance channel is provided for the utility model;

[0021] Figure 4 A top view of the transverse channel structure of the L-shaped maintenance channel is provided for the utility model.

[0022] Explanation of reference signs:

[0023] 1. Vertical ladder; 2. Horizontal bar; 3. Horizontal passage; 4. Upright pole; 5. First enclosure structure; 6. Steps; 7. Distribution beam; 8. Hinge; 9. Second enclosure structure; 10. Horizontal beam. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model discloses an L-shaped maintenance access channel.

[0026] This utility model provides, for example Figures 1-4 The L-shaped maintenance passage shown includes a vertical ladder 1, a horizontal passage 3, and several first enclosure structures 5. The vertical ladder 1 is composed of multiple sets of columns 11 and steps 6. The horizontal passage 3 is composed of multiple sets of uprights 4, crossbars 2, bottom crossbeams 10, and distribution beams 7. The first enclosure structures 5 are set around the vertical ladder 1, outside the horizontal passage 3, and at the bottom.

[0027] The transverse passage 3 is equipped with multiple sets of uprights 4 vertically connected to the crossbars 2, and multiple sets of distribution beams 7 vertically connected to two sets of bottom crossbeams 10. The vertical ladder 1 is equipped with multiple sets of steps 6 vertically connected to four sets of uprights 11.

[0028] In use, construction workers enter the transverse passage 3 from the vertical ladder 1 on the bridge deck, walk to the second enclosure structure 9 near the maintenance vehicle, open the second enclosure structure 9 which is connected to the vertical pole 4 of the transverse passage via the hinge shaft 8, and smoothly enter the interior of the maintenance vehicle.

[0029] To further improve the connection stability between the horizontal passageway 3 and the vertical ladder, such as Figure 3 As shown, the transverse passage 3 is connected to the cantilever of the bridge via uprights.

[0030] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An L-shaped access corridor comprising a vertical ladder (1), a horizontal walkway (3) and a plurality of first barrier structures (5), characterized in that: The vertical ladder (1) is composed of multiple groups of stand columns (11) and steps (6), the horizontal passage (3) is composed of multiple groups of stand poles (4), horizontal poles (2), bottom cross beams (10) and distribution beams (7), and the first fence structure (5) is arranged around the vertical ladder (1), outside and the bottom of the horizontal passage (3).

2. The L-type access way according to claim 1, characterized in that The vertical ladder (1) is connected with the bridge deck at an angle of 90°, the vertical ladder (1) is connected with the horizontal passage (3) at an angle of 90° in an L shape, and the horizontal passage (3) is connected with the inspection vehicle at an angle of 90°.

3. The L-type access way according to claim 1, characterized in that, The horizontal passage (3) is connected to the cantilever of the bridge through the stand pole (4).

4. The L-type access way according to claim 1, wherein, The first fence structure (5) is arranged outside and the bottom of the horizontal passage (3), and the second fence structure (9) near the position of the inspection vehicle is connected and rotated by 0°-90° through the winding shaft (8).

5. The L-type access way according to claim 1, wherein, The horizontal passage (3) is composed of multiple groups of stand poles (4) vertically connected to the horizontal poles (2), and multiple groups of the distribution beams (7) vertically connected to two groups of the bottom cross beams (10).

6. The L-type accessway of claim 1, wherein The vertical ladder (1) is composed of multiple groups of steps (6) vertically connected to four groups of stand columns (11).