Protective fence for underground pipe gallery construction

By installing an adjustable guardrail structure on the side of the utility tunnel, the problem of pre-embedded bases in existing guardrail technologies has been solved, enabling rapid installation and disassembly, and improving construction efficiency and material utilization.

CN224161467UActive Publication Date: 2026-04-24CHONGQING INVESTMENT CONSULTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING INVESTMENT CONSULTING CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In existing technologies, the base of the protective railing for underground utility tunnel construction needs to be pre-embedded in the tunnel structure, which increases the pre-processing steps and may affect the tunnel structure during dismantling.

Method used

The adjustable guardrail structure includes guardrails, support bases, and adjustment components. It is installed on the side of the pipe gallery via the support bases and forms a clamping structure using the adjustment components. No pre-embedded base is required, enabling quick installation and disassembly and adapting to pipe galleries of different sizes.

Benefits of technology

It simplifies the pre-construction procedures, avoids damage to the pipe gallery structure, improves installation efficiency and versatility, reduces material waste, and enables rapid disassembly and reuse.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a protective fence for underground pipe gallery construction, which is mounted on a pipe gallery body and comprises two protective fences which are respectively positioned on two sides of the pipe gallery body and comprise two upright posts and a plurality of handrails arranged between the two upright posts; the multiple supporting seats are correspondingly arranged at the bottom ends of the multiple stand columns correspondingly and erected on the side face of the pipe gallery body; and the adjusting piece is connected with the two supporting bases located on the different sides of the pipe gallery body. The guardrails are installed on the side faces of the pipe gallery body through the supporting bases to form a protection structure of the pipe gallery body, constructors and materials are prevented from falling off, under the action of the adjusting pieces, the supporting bases on the two sides are connected to form a clamping structure, a base does not need to be pre-buried on the pipe gallery body, the early-stage construction procedure is simplified, and construction efficiency is improved. According to the pipe gallery structure, damage to the pipe gallery structure during traditional pre-embedded type disassembly is avoided, non-pre-embedded type rapid installation is achieved, meanwhile, clamping of the pipe gallery body by the supporting seats on the two sides can be relieved through the adjusting pieces, disassembly, storage and repeated utilization can be rapidly conducted, and material waste is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of pipe gallery construction technology, and in particular to a protective railing for underground pipe gallery construction. Background Technology

[0002] Underground utility tunnels are constructed deep underground. To ensure their functionality, an external waterproof layer is required after the tunnel structure is completed, followed by backfilling of the foundation pit. To prevent people from slipping or objects from falling, a protective structure is typically installed on top of the tunnel to ensure safety during construction and maintenance and reduce the risk of accidents.

[0003] For example, Chinese patent "CN212078752U" discloses "a standardized protective railing for the top slab of a utility tunnel." In this railing, the base is pre-embedded within the utility tunnel structure. The base's longitudinal direction is parallel to the outer edge of the utility tunnel's top slab, and its lateral distance from the outer edge is greater than the length of the waterproof membrane to be laid on the exterior facade. The top plane of the base is flush with the top plane of the utility tunnel's top slab. This helps to ensure the safety of construction workers and reduce falls from heights. However, this railing requires the base to be pre-embedded in the utility tunnel structure, increasing the pre-processing steps. Furthermore, removing the base from the utility tunnel would affect its structure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a protective railing for underground utility tunnel construction, which solves the problem that the railing base needs to be pre-embedded inside the utility tunnel in the existing technology.

[0005] According to embodiments of this utility model, the following technical solution is adopted:

[0006] A protective barrier for underground utility tunnel construction, installed on the utility tunnel body, includes:

[0007] The guardrail consists of two guardrails located on both sides of the pipe gallery body, and each guardrail includes two posts and several railings between the two posts.

[0008] Support bases, several support bases are respectively set at the bottom of several columns and erected on the side of the pipe gallery body;

[0009] An adjusting component connects two support seats located on different sides of the utility tunnel body, and is used to adjust the distance between the two support seats so that the two support seats are clamped onto the utility tunnel body.

[0010] Preferably, the adjusting element includes:

[0011] The tie rod and support base are provided with mounting seats. The tie rod passes between two corresponding mounting seats. The end of the tie rod is provided with a limiting section, which abuts against one of the mounting seats.

[0012] The adjusting nut has a threaded section at the other end of the pull rod. The adjusting nut is threadedly connected to the threaded section and abuts against another mounting base.

[0013] Preferably, the support base is provided with reinforcing ribs, which are connected to the mounting base.

[0014] Preferably, the support has a first mounting surface parallel to the top surface of the pipe gallery body and a second mounting surface parallel to the side surface of the pipe gallery body. The first mounting surface is provided with a pulley, which is in rolling connection with the top surface of the pipe gallery body.

[0015] Preferably, the first mounting surface is threaded with a fixing screw, which abuts against the top surface of the pipe rack body.

[0016] Preferably, the second mounting surface is provided with a limiting wheel, which is in rolling connection with the side of the pipe gallery body.

[0017] Preferably, the second mounting surface is provided with a limiting seat, and the column passes through the limiting seat.

[0018] Preferably, the limiting seat is threadedly connected to a pressing screw, which abuts against the column.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In this solution, the guardrail is installed on the side of the utility tunnel body via support bases, forming a protective structure for the utility tunnel body. This effectively prevents construction personnel and materials from falling. With the help of the adjusting components, the guardrail connects the support bases on both sides to form a clamping structure. There is no need to pre-embed the base on the utility tunnel body, which simplifies the early construction process and avoids the damage to the utility tunnel structure during traditional pre-embedded dismantling. This achieves rapid installation without pre-embedded components. At the same time, the clamping of the support bases on both sides on the utility tunnel body can be released by the adjusting components, allowing for quick dismantling, storage, and reuse, reducing material waste. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram and a partial enlarged view of an embodiment of the present utility model.

[0022] Figure 2 This is a schematic diagram of the planar structure and a partial enlarged view of an embodiment of the present utility model.

[0023] In the above attached drawings: 1. Pipe gallery body; 2. Guardrail; 201. Railing; 202. Post; 3. Support base; 301. Mounting base; 302. Reinforcing rib; 303. Limiting seat; 304. Pulley; 305. Limiting wheel; 306. Limiting section; 4. Tie rod; 401. Threaded section; 402. Adjusting nut; 5. Pressing screw; 6. Fixing screw. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0025] This utility model embodiment proposes a protective railing for underground utility tunnel construction, installed on the utility tunnel body 1, including:

[0026] Guardrail 2, two guardrails 2 are located on both sides of the pipe gallery body 1 respectively, and the guardrail 2 includes two posts 202 and several railings 201 between the two posts 202;

[0027] Support base 3, several support bases 3 are respectively set at the bottom of several columns 202 and erected on the side of the pipe gallery body 1;

[0028] An adjusting component connects two support seats 3 located on different sides of the pipe gallery body 1, and is used to adjust the distance between the two support seats 3 so that the two support seats 3 are clamped on the pipe gallery body 1.

[0029] In the embodiments of this utility model, such as Figure 1 As shown, the guardrail 2 consists of two posts 202 and multiple railings 201 located between the two posts 202. When the two posts 202 are installed on the side of the pipe gallery body 1 through the support base 3, the multiple railings 201 form a continuous protective surface to protect the construction personnel on the pipe gallery body 1, effectively preventing construction personnel and materials from falling.

[0030] Secondly, when the two guardrails 2 are installed on the sides of the pipe gallery body 1, they form a clamping structure with the support seats 3 on both sides through the action of the adjusting parts. There is no need to pre-embed the structure on the pipe gallery body 1, which simplifies the early construction process and avoids the damage to the structure of the pipe gallery body 1 during the traditional pre-embedded dismantling. This achieves non-pre-embedded rapid installation. The spacing between the support seats 3 on both sides can also be flexibly adjusted according to the width of the pipe gallery body 1. With the guardrail 2 structure connected to the support seats 3, it can be compatible with pipe gallery bodies 1 of different sizes, which significantly improves the versatility and installation efficiency of the guardrail. At the same time, the clamping of the support seats 3 on both sides to the pipe gallery body 1 can be released through the adjusting parts, which can be quickly disassembled, stored and reused, reducing material waste.

[0031] Based on the above scheme, in order to facilitate the adjustment of the two support seats 3, such as Figure 2 As shown, the adjusting component includes:

[0032] The pull rod 4 and the support base 3 are provided with mounting bases 301. The pull rod 4 passes between two corresponding mounting bases 301. The end of the pull rod 4 is provided with a limiting section 306, which abuts against one of the mounting bases 301.

[0033] The adjusting nut 402 and the other end of the pull rod 4 are provided with a threaded section 401. The adjusting nut 402 is threadedly connected to the threaded section 401 and abuts against another mounting base 301.

[0034] During installation, the tie rod 4 is first inserted between two corresponding mounting seats 301, forming a single unit from the two mounting seats 301 on opposite sides. This also facilitates the installation of the two guardrails 2 on both sides of the pipe gallery body 1. To ensure the stability of the two guardrails 2, the tie rod 4 is circumferentially fixed by rotating the adjusting nut 402. This allows the tie rod 4 to move axially under the rotation of the adjusting nut 402 until the adjusting nut 402 and the limiting section 306 abut against the corresponding mounting seats 301, completing the fixed installation of the two guardrails 2. Through the connection of the tie rod 4, the guardrail 2 formed by the railing 201 and the post 202 is tightly attached to the side of the pipe gallery body 1 via the support seat 3. When subjected to lateral force, the pipe gallery body 1 directly provides the reaction force, significantly reducing the risk of overturning. For disassembly, simply remove the adjusting nut 402 and take out the tie rod 4 to release the limiting on the two guardrails 2, achieving quick assembly and disassembly.

[0035] In the connection between the support base 3 and the mounting base 301, such as Figure 2 As shown, the support base 3 is provided with a reinforcing rib 302, which is connected to the mounting base 301. The reinforcing rib 302 effectively increases the connection area between the support base 3 and the mounting base 301. When the tie rod 4 is subjected to the force of the adjusting nut 402, the mounting base 301 will not deform under the support of the reinforcing rib 302, thus increasing the structural strength.

[0036] Based on the above solutions, such as Figure 2 As shown, the support base 3 has a first mounting surface parallel to the top surface of the pipe gallery body 1 and a second mounting surface parallel to the side surface of the pipe gallery body 1. The first mounting surface is equipped with a pulley 304, which is rolledly connected to the top surface of the pipe gallery body 1. The construction area of ​​the construction personnel is often at the connection position between two pipe gallery bodies 1. After the construction is completed, the guardrails 2 on both sides of the pipe gallery body 1 can be pushed directly, so that the guardrails 2 can move directly on the top of the pipe gallery body 1 under the action of the pulleys 304 of the corresponding support base 3, realizing the rapid switching of the construction position without repeated disassembly and assembly, thus ensuring the efficiency of construction. At the same time, in order to ensure the stability of the guardrail 2 when the position is fixed, a fixing screw 6 is threadedly connected to the first mounting surface. The fixing screw 6 abuts against the top surface of the pipe gallery body 1. After the guardrail 2 is moved to a certain position by the pulley 304, the fixing screw 6 is rotated so that the end of the fixing screw 6 abuts against the top surface of the pipe gallery body 1, thus achieving friction fixation. When it is necessary to move the guardrail 2, the fixing screw 6 is reversed to separate it from the top surface of the pipe gallery body 1.

[0037] Specifically, such as Figure 2As shown, the second mounting surface is provided with a limiting wheel 305, which is rolledly connected to the side of the pipe gallery body 1. The limiting wheel 305 and the pulley 304 form a two-way rolling guide mechanism on the top and side surfaces, so as to realize the smooth movement of the guardrail 2 along the axial direction of the pipe gallery body 1 and the automatic correction of lateral offset.

[0038] Specifically, such as Figure 2 As shown, the second mounting surface is provided with a limiting seat 303, and the column 202 passes through the limiting seat 303. When installing the column 202 in the guardrail 2, it can be directly passed through the limiting seat 303. Under the action of the gravity of the guardrail 2, the stability of the column 202 in the limiting seat 303 is ensured, realizing the connection between the guardrail 2 and the support seat 3. In order to further ensure the connection stability between the two, the limiting seat 303 is threadedly connected with a compression screw 5. The compression screw 5 abuts against the column 202. After the column 202 is passed into the limiting seat 303, the compression screw 5 can be rotated to abut against the column 202 for compression and fixation, so that the column 202 can be easily removed from the limiting seat 303 by external force.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A protective railing for underground utility tunnel construction, installed on the utility tunnel body (1), characterized in that, include: Guardrail (2), the two guardrails (2) are respectively located on both sides of the pipe gallery body (1), and the guardrail (2) includes two posts (202) and a number of railings (201) disposed between the two posts (202); Support base (3), several of the support bases (3) are respectively provided at the bottom of several of the columns (202) and are erected on the side of the pipe gallery body (1); An adjusting element is connected to two support seats (3) located on different sides of the pipe gallery body (1) to adjust the distance between the two support seats (3) so that the two support seats (3) are clamped on the pipe gallery body (1).

2. The protective railing for underground utility tunnel construction according to claim 1, characterized in that, The adjusting element includes: A pull rod (4) is provided with a mounting seat (301) on the support base (3). The pull rod (4) passes between two corresponding mounting seats (301). The end of the pull rod (4) is provided with a limiting section (306). The limiting section (306) abuts against one of the mounting seats (301). The adjusting nut (402) is threaded at the other end of the pull rod (4), and the adjusting nut (402) is threadedly connected to the threaded section (401) and abuts against another mounting base (301).

3. A protective railing for underground utility tunnel construction according to claim 2, characterized in that, The support base (3) is provided with reinforcing ribs (302), which are connected to the mounting base (301).

4. A protective railing for underground utility tunnel construction according to claim 1, characterized in that, The support base (3) has a first mounting surface parallel to the top surface of the pipe gallery body (1) and a second mounting surface parallel to the side surface of the pipe gallery body (1). The first mounting surface is provided with a pulley (304), which is in rolling connection with the top surface of the pipe gallery body (1).

5. A protective railing for underground utility tunnel construction according to claim 4, characterized in that, The first mounting surface is threaded with a fixing screw (6), which abuts against the top surface of the pipe gallery body (1).

6. A protective railing for underground utility tunnel construction according to claim 4, characterized in that, The second mounting surface is provided with a limiting wheel (305), which is in rolling connection with the side of the pipe gallery body (1).

7. A protective railing for underground utility tunnel construction according to any one of claims 4-6, characterized in that, The second mounting surface is provided with a limiting seat (303), and the column (202) passes through the limiting seat (303).

8. A protective railing for underground utility tunnel construction according to claim 7, characterized in that, The limiting seat (303) is threadedly connected to a pressing screw (5), which abuts against the column (202).

Citation Information

Patent Citations

  • Pipe gallery top plate sizing protective railing

    CN212078752U