Underground pipe gallery pipeline rapid maintenance butt joint support

By installing slide rails and sliding frames on the maintenance ladder, combined with the design of limit frames and pulleys, the problem of inconvenient movement of the maintenance ladder in the underground utility tunnel is solved, achieving greater convenience and stability for maintenance over a wider range.

CN224064956UActive Publication Date: 2026-03-31CHINA CUP CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The conventional maintenance ladders are difficult to move in the underground utility tunnel, making it inconvenient for staff to inspect pipes in different locations.

Method used

The design incorporates a slide rail and sliding frame structure, along with a limit frame, pulleys, and support base, enabling flexible movement and stable fixation of the maintenance ladder.

Benefits of technology

It improves the mobility and ease of use of the maintenance ladder, reduces friction, and ensures the stability and fixed position of the maintenance ladder.

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Abstract

The utility model relates to the field of underground pipe gallery pipelines, and discloses an underground pipe gallery pipeline rapid maintenance butt joint support which comprises a plurality of mounting frames, a sliding rail is fixedly mounted at the tops of the mounting frames, a sliding groove is formed in the inner wall of the sliding rail, and two sliding frames are slidably connected to the inner wall of the sliding groove; a maintenance ladder stand is fixedly installed at the bottom ends of the two sliding frames, the two sliding frames are symmetrically distributed with the maintenance ladder stand as the axis, one end of each sliding frame is rotationally connected with a limiting frame, the section of each sliding rail is of a J-shaped structure, and the size specification of the inner wall of each sliding groove is matched with the size specification of the surface of the corresponding sliding frame. The sliding rails are mounted at the tops of the mounting frames, the sliding grooves are formed in the inner walls of the sliding rails, the sliding frames are slidably connected to the inner walls of the sliding grooves, and the bottom ends of the sliding frames are connected with the top of the overhauling ladder stand, so that the overhauling ladder stand is mounted at the top of the sliding rails through the sliding frames, and the sliding frames are controlled to move in the sliding grooves; and the maintenance crawling ladder can be conveniently controlled to move to a proper position.
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Description

Technical Field

[0001] This application relates to the field of underground utility tunnels and pipelines, and in particular to rapid maintenance and connection supports for underground utility tunnels and pipelines. Background Technology

[0002] Underground utility tunnels refer to facilities built underground in cities for the centralized laying of various urban engineering pipelines. These tunnels are structures built underground to accommodate two or more types of urban engineering pipelines and their ancillary facilities, including water supply, drainage, gas, heating, electricity, communications, broadcasting, television, and industrial pipelines. The advantages of underground utility tunnels lie in their one-time investment and sustainable use, as well as the convenience of eliminating the need for further excavation after initial groundwork. Furthermore, underground utility tunnels are equipped with municipal utilities such as fire protection, power supply, lighting, monitoring and alarm systems, ventilation, drainage, and signage, effectively integrating resources and reducing waste. This not only improves pipeline safety and maintenance efficiency but also reduces road excavation and traffic disruptions caused by pipeline failures. During installation, conventional underground utility tunnels use mounting frames fixed to the inner wall of the tunnel, with the pipes installed using these frames. One end of the mounting frame is connected to a maintenance ladder, allowing workers to easily inspect the pipes at higher elevations.

[0003] Regarding the aforementioned technologies, the inventors believe that during the maintenance of conventional underground utility tunnels, the conventional maintenance ladders are often directly connected to the mounting frame to ensure stability, which limits the reach of the ladders and makes it inconvenient for workers to maintain pipes in different locations.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the problem of conventional maintenance ladders being difficult to move during use, this application provides a quick maintenance docking bracket for underground utility tunnels.

[0006] The rapid maintenance and connection support for underground utility tunnels provided in this application adopts the following technical solution:

[0007] The rapid maintenance and docking support for underground utility tunnel pipelines includes several mounting brackets. A slide rail is fixedly mounted on the top of each mounting bracket. A groove is formed on the inner wall of each slide rail. Two sliding frames are slidably connected to the inner wall of each groove. Maintenance ladders are fixedly mounted on the bottom ends of the two sliding frames. The two sliding frames are symmetrically distributed about the maintenance ladders, and one end of each sliding frame is rotatably connected to a limit frame. The slide rail has a "J"-shaped cross-section. The dimensions of the inner wall of the groove are compatible with the surface dimensions of the sliding frames, and the dimensions of one end of each sliding frame are compatible with the top dimensions of the maintenance ladder.

[0008] Preferably, the top of the slide rail is provided with a plurality of slots, which are evenly distributed on the top of the slide rail. The inner wall of the slot is engaged with one end of the limiting frame, and the size of the inner wall of the slot is adapted to the size of one end of the limiting frame. A fixing spring is fixedly installed at the bottom of the limiting frame, and one end of the fixing spring is fixedly connected to the surface of the slide frame.

[0009] Preferably, a pulley is rotatably mounted on the inner wall of the sliding frame, the surface of the pulley is slidably connected to the inner wall of the sliding groove, and the size and specifications of the pulley surface are adapted to the size and specifications of the inner wall of the sliding groove.

[0010] Preferably, a control frame is rotatably mounted on one end of each of the two limiting frames, and a slider is fixedly connected to one end of the control frame. A connecting groove adapted to the slider is opened on the surface of the mounting frame, and the inner wall of the connecting groove is slidably mounted to the surface of the slider.

[0011] Preferably, the bottom end of the maintenance ladder is slidably connected to two sliding rods, the two sliding rods are symmetrically distributed about the maintenance ladder axis, and the bottom end of the sliding rods is fixedly installed with a support base.

[0012] Preferably, the inner wall of the maintenance ladder is slidably connected to two limiting blocks, one end of which is fixedly installed with a push spring, and one end of the push spring is fixedly connected to the inner wall of the maintenance ladder. The surface of the sliding rod is provided with a plurality of mounting grooves that are adapted to the limiting blocks.

[0013] Preferably, the support base and the sliding rod are arranged perpendicularly to each other, and the support base is a rubber base, with several auxiliary grooves opened at the bottom end of the support base.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] By mounting slide rails on top of several mounting brackets, and providing grooves on the inner walls of the slide rails, a sliding frame is slidably connected to the inner walls of the grooves. This allows for the installation of a maintenance ladder on top of the slide rails using the sliding frame, and the movement of the sliding frame within the grooves facilitates the movement of the maintenance ladder to a suitable position. Several slots are provided on the top of the slide rails, with limit frames engaging on the inner walls of the slots. A fixing spring is installed between the limit frame and the sliding frame to hold the limit frame in place, thus fixing the position of the sliding frame. A control frame is rotatably connected to one end of the limit frame, and a slider is mounted on the other end. The slider's surface slidably engages with a connecting groove inside the maintenance ladder, allowing the control frame to rotate the limit frame and easily separate it from the slot. A pulley is rotatably connected to the inner wall of the sliding frame to reduce friction between the sliding frame and the groove. Compared to existing technologies, this significantly improves the convenience of maintenance for personnel.

[0016] Alternatively, a sliding rod can be installed at the bottom of the maintenance ladder. A support base is installed at the bottom of the sliding rod so that the support base can be retracted when the maintenance ladder is moved. Two limit blocks are slidably connected to the inner wall of the maintenance ladder. The surface of the limit block engages with the mounting groove inside the sliding rod, and a push spring is installed at one end of the limit block so that the limit block is pushed by the push spring to keep the limit block engaged with the mounting groove, thereby fixing the height of the sliding rod. A rubber support base is installed at the bottom of the sliding rod to increase the friction between the sliding rod and the ground, effectively improving the performance of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the rapid maintenance docking support for underground utility tunnels in the application embodiment;

[0018] Figure 2 This is a schematic diagram of the slide rail structure in an embodiment of the application;

[0019] Figure 3 This is a side view of the embodiment of the application.

[0020] Figure 4 This is a schematic diagram of the structure at point A in the embodiment of the application.

[0021] Explanation of reference numerals in the attached drawings: 1. Mounting bracket; 2. Maintenance ladder; 3. Slide rail; 4. Slide groove; 5. Sliding frame; 6. Limiting frame; 7. Slot; 8. Fixing spring; 9. Control frame; 10. Slider; 11. Connecting groove; 12. Pulley; 13. Sliding rod; 14. Support base; 15. Limiting block; 16. Push spring; 17. Mounting groove. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 —4. This application will be described in further detail.

[0023] This application discloses a rapid maintenance docking support for underground utility tunnels, as described in the embodiments below. Figure 1 - Figure 2 The system includes a mounting frame 1, which is fixed to the inner wall of the pipe gallery during installation. The pipe body is installed using the mounting frame 1, and one end of the mounting frame 1 is connected to a maintenance ladder 2. The maintenance ladder 2 facilitates the maintenance of the pipe body at a high position by the staff. A slide rail 3 is installed on the top of several mounting frames 1. The inner wall of the slide rail 3 has a slide groove 4, and a slide frame 5 is slidably connected to the inner wall of the slide groove 4. The bottom end of the slide frame 5 is connected to the top of the maintenance ladder 2. The maintenance ladder 2 is installed on the top of the slide rail 3 using the slide frame 5, and the slide frame 5 is controlled to move within the slide groove 4, which facilitates the control of the maintenance ladder 2 to move to a suitable position, thereby improving the application range of the maintenance ladder 2.

[0024] Reference Figure 2 The top of the slide rail 3 has several slots 7, and the inner wall of the slots 7 is engaged with a limit frame 6. One end of the limit frame 6 is rotatably connected to the surface of the slide frame 5, and a fixing spring 8 is installed between the limit frame 6 and the slide frame 5. The fixing spring 8 pushes the limit frame 6 to keep it engaged with the slots 7. The limit frame 6 and the slots 7 facilitate the fixation of the position of the slide frame 5, preventing the maintenance ladder 2 from shifting during use. One end of the limit frame 6 is rotatably connected to a control frame 9, and one end of the limit frame 6 is also rotatably connected to the control frame 9. A slider 10 is installed at the end, and the surface of the slider 10 is slidably connected to the connecting groove 11 inside the maintenance ladder 2. The slider 10 and the connecting groove 11 restrict the movement position of the control frame 9. The control frame 9 controls the rotation of the limit frame 6, which facilitates the separation of the limit frame 6 from the slot 7, making it more convenient to use. A pulley 12 is rotatably connected to the inner wall of the sliding frame 5. The bottom end of the pulley 12 is slidably connected to the inner wall of the slide groove 4. The pulley 12 reduces the friction between the sliding frame 5 and the slide groove 4, making it more convenient to move the sliding frame 5.

[0025] Reference Figure 3 - Figure 4A sliding rod 13 is installed at the bottom of the maintenance ladder 2. A support base 14 is installed at the bottom of the sliding rod 13. The height of the support base 14 can be adjusted by using the sliding rod 13, so that the support base 14 can be retracted when the maintenance ladder 2 is moved. This avoids the bottom of the maintenance ladder 2 rubbing against the ground, which would cause the maintenance ladder 2 to be difficult to move. Two limiting blocks 15 are slidably connected to the inner wall of the maintenance ladder 2. The surface of the limiting block 15 is engaged with the mounting groove 17 in the sliding rod 13. One end of the sliding rod 13 is equipped with a push spring 16, which is connected to the inner wall of the maintenance ladder 2. The push spring 16 pushes the limit block 15 to keep the limit block 15 locked in the mounting groove 17, thereby fixing the height of the sliding rod 13. A rubber support base 14 is installed at the bottom of the sliding rod 13. Several auxiliary grooves are opened at the bottom of the support base 14. The support base 14 and the auxiliary grooves are used to increase the friction between the sliding rod 13 and the ground, thereby improving the stability of the maintenance ladder 2 after installation.

[0026] The implementation principle of the rapid maintenance docking bracket for underground utility tunnels in this embodiment is as follows: A slide rail 3 is installed on top of several mounting brackets 1. A slide groove 4 is provided on the inner wall of the slide rail 3. A sliding frame 5 is slidably connected to the inner wall of the slide groove 4. The bottom end of the sliding frame 5 is connected to the top of the maintenance ladder 2, so that the maintenance ladder 2 can be installed on top of the slide rail 3 by means of the sliding frame 5. The sliding frame 5 is controlled to move within the slide groove 4, which facilitates the control of the maintenance ladder 2 to move to a suitable position, thereby improving the usability of the maintenance ladder 2. Several slots 7 are provided on the top of the slide rail 3. A limit frame 6 is engaged with the inner wall of the slot 7. One end of the limit frame 6 is rotatably connected to the surface of the sliding frame 5. A fixing spring 8 is installed between the limit frame 6 and the sliding frame 5, so that the limit frame 6 can be pushed by means of the fixing spring 8. The 6-slot retainer is engaged with the slot 7. The position of the sliding frame 5 is easily fixed by the limit frame 6 and the slot 7, which prevents the maintenance ladder 2 from shifting during use. One end of the limit frame 6 is rotatably connected to the control frame 9, and a slider 10 is installed on one end of the limit frame 6. The surface of the slider 10 is slidably connected to the connecting groove 11 inside the maintenance ladder 2. The slider 10 and the connecting groove 11 restrict the movement of the control frame 9, so that the limit frame 6 can be rotated by the control frame 9, which makes it easier to separate the limit frame 6 from the slot 7, making it more convenient to use. The inner wall of the sliding frame 5 is rotatably connected to the pulley 12. The bottom end of the pulley 12 is slidably connected to the inner wall of the slide groove 4, so that the friction between the sliding frame 5 and the slide groove 4 can be reduced by the pulley 12, making it more convenient to move the sliding frame 5.

[0027] Alternatively, the sliding rod 13 can be installed at the bottom of the maintenance ladder 2. A support base 14 is installed at the bottom of the sliding rod 13 to adjust the height of the support base 14. This allows the support base 14 to be retracted when the maintenance ladder 2 is moved, preventing the bottom of the maintenance ladder 2 from rubbing against the ground and causing inconvenience in moving the maintenance ladder 2. Two limit blocks 15 are slidably connected to the inner wall of the maintenance ladder 2. The surface of the limit block 15 is engaged with the mounting groove 17 inside the sliding rod 13, and a push spring 16 is installed at one end of the limit block 15. One end of the push spring 16 is connected to the inner wall of the maintenance ladder 2, so that the push spring 16 can push the limit block 15 to keep the limit block 15 engaged with the mounting groove 17, thereby fixing the height of the sliding rod 13. The rubber support base 14 is installed at the bottom of the sliding rod 13 to increase the friction between the sliding rod 13 and the ground, thereby improving the stability of the maintenance ladder 2 after installation.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. Underground pipe gallery pipeline rapid maintenance butt support, comprising a plurality of mounting frames (1), characterized in that: The top of several mounting racks (1) is fixedly provided with sliding rails (3), the inner wall of the sliding rail (3) is provided with a sliding groove (4), the inner wall of the sliding groove (4) is slidably connected with two sliding frames (5), the bottom of the two sliding frames (5) is fixedly provided with an inspection ladder (2), the two sliding frames (5) are symmetrically distributed about the inspection ladder (2), and one end of the sliding frame (5) is rotatably connected with a limiting frame (6).

2. The underground utility tunnel quick workover docking support of claim 1, wherein: The cross section of the sliding rail (3) is in a "J" shape structure, the size specification of the inner wall of the sliding groove (4) is matched with the size specification of the surface of the sliding frame (5), and the size specification of one end of the sliding frame (5) is matched with the size specification of the top of the inspection ladder (2).

3. The underground utility tunnel quick workover docking support of claim 1, wherein: The top of the sliding rail (3) is provided with a plurality of clamping grooves (7), the plurality of clamping grooves (7) are evenly distributed on the top of the sliding rail (3), the inner wall of the clamping groove (7) is clamped with one end of the limiting frame (6), the size specification of the inner wall of the clamping groove (7) is matched with the size specification of one end of the limiting frame (6), the bottom of the limiting frame (6) is fixedly provided with a fixed spring (8), and one end of the fixed spring (8) is fixedly connected with the surface of the sliding frame (5).

4. The underground tunnel utility quick work access docking support of claim 1, wherein: The inner wall of the sliding frame (5) is rotatably provided with a pulley (12), the surface of the pulley (12) is slidably connected with the inner wall of the sliding groove (4), and the size specification of the surface of the pulley (12) is matched with the size specification of the inner wall of the sliding groove (4).

5. The underground tunnel utility quick work access docking support of claim 1, wherein: One end of the two limiting frames (6) is rotatably provided with a control frame (9), one end of the control frame (9) is fixedly connected with a sliding block (10), the surface of the mounting rack (1) is provided with a connecting groove (11) matched with the sliding block (10), and the inner wall of the connecting groove (11) is slidably connected with the surface of the sliding block (10).

6. The underground tunnel utility quick work access docking support of claim 1, wherein: The bottom of the inspection ladder (2) is slidably connected with two sliding rods (13), the two sliding rods (13) are symmetrically distributed about the inspection ladder (2), and the bottom of the sliding rod (13) is fixedly provided with a supporting seat (14).

7. The underground tunnel utility quick access docking bracket of claim 6, wherein: The inner wall of the inspection ladder (2) is slidably connected with two limiting blocks (15), one end of the limiting block (15) is fixedly provided with a pushing spring (16), one end of the pushing spring (16) is fixedly connected with the inner wall of the inspection ladder (2), and the surface of the sliding rod (13) is provided with a plurality of mounting grooves (17) matched with the limiting block (15).

8. The underground tunnel utility quick work access docking support of claim 6, wherein: The supporting seat (14) and the sliding rod (13) are perpendicular to each other, the supporting seat (14) is a rubber seat, and the bottom of the supporting seat (14) is provided with a plurality of auxiliary grooves.