Simple device for excavating and supporting pipe groove

By combining crossbeams, cross braces, sleeves, A-beams, and B-beams, the high cost and complexity of Larssen sheet piles in water supply trench excavation support are solved, providing a low-cost and efficient support solution.

CN224092524UActive Publication Date: 2026-04-07YCIH NO 2 WATER RESOURCES & HYDROPOWER CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing Larssen sheet piles are costly, complex to manufacture, and inconvenient to install and dismantle when used for the excavation and support of water supply pipe trenches.

Method used

A combination structure of crossbeams, cross braces, sleeves, A-beam supports, and B-beam supports is adopted. These are driven into the soil using large mechanical equipment to form a simple foundation pit support, which simplifies the installation process and improves dismantling efficiency.

Benefits of technology

It achieves low-cost and high-efficiency support, is suitable for projects with tight schedules, and does not require a complicated fastening installation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a simple device for excavating and supporting a pipe groove, and relates to the technical field of hydraulic engineering, in particular to the simple device for excavating and supporting the pipe groove, which comprises two cross beams, a cross supporting rod is fixedly connected between the two cross beams, and the surface of the cross supporting rod is sleeved with a sleeve rod. The lower surface of the cross beam is fixedly connected with a plurality of hinges through screws, and the cross beam is rotationally connected with an I-shaped steel support A through the hinges. When the device is used, the device is unfolded, the distance between the two cross beams is adjusted according to the width of a pipe groove, then the I-shaped steel support A and the I-shaped steel support B are nailed into soil through large mechanical equipment, and therefore a simple foundation pit support is formed and does not need to be fastened like Larsen steel sheet piles, and the supporting efficiency is not high; the device can quickly support and block the soil body, is high in mounting and dismounting efficiency, simple in material taking, low in manufacturing cost and convenient to use in engineering projects with tight construction periods.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically a simple device for trench excavation and support. Background Technology

[0002] Water supply trenches are trenches or channels used to lay water supply pipes, and are typically used in urban infrastructure and industrial sites.

[0003] Larssen sheet piles are commonly used for the excavation and support of water supply pipe trenches. However, due to their high cost, complex manufacturing process, and the need for specialized manufacturers, as well as the inconvenience of installation and removal, a simple device for pipe trench excavation and support is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a simple device for trench excavation support. By setting up crossbeams, cross braces, sleeves, A-beam support and B-beam support, it solves the problems of Larssen steel sheet piles being too costly, complex to manufacture, requiring professional manufacturers, and inconvenient to install and dismantle.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a simple device for trench excavation support, comprising two crossbeams, with a cross brace fixedly connected between the two crossbeams, a sleeve rod sleeved on the surface of the cross brace, and multiple hinges fixedly connected to the lower surface of the crossbeams by screws, with an A-beam support rotatably connected to the crossbeams via the hinges, a connecting rod fixedly connected to the top of one side of the A-beam support, and a B-beam support fixedly connected to one side of the connecting rod.

[0006] Preferably, the surface of the cross brace has multiple holes, and bolts A are inserted into the holes. The cross brace is fixed to the sleeve rod by bolts A.

[0007] Preferably, an insertion hole is provided on one side of the inner wall of the A-beam support, and a B bolt is inserted into the insertion hole. The A-beam support is fixed to the crossbeam by the B bolt.

[0008] Preferably, a reinforcing rib A is welded between the connecting rod and both the A-beam support and the B-beam support, and a lifting hole is provided at the top of the inner wall of both the A-beam support and the B-beam support.

[0009] Preferably, a B-shaped reinforcing rib is welded between the crossbeam and the cross brace, and a tapered head is provided at the bottom end of both the A-beam support and the B-beam support.

[0010] This utility model provides a simple device for support during pipe trench excavation, which has the following beneficial effects:

[0011] In use, the equipment is unfolded, and the distance between the two crossbeams is adjusted according to the width of the trench. Then, large mechanical equipment is used to nail the A-beam support and the B-beam support into the soil, thus forming a simple foundation pit support. Unlike Larssen sheet piles, which require each frame to be tightly interlocked and have low support efficiency, this equipment can quickly provide support to the soil. It has high installation and dismantling efficiency, and the materials are simple to obtain and the manufacturing cost is low, making it suitable for projects with tight schedules. Attached Figure Description

[0012] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a bottom view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the second embodiment of the present invention;

[0016] Figure 4 This is a structural breakdown diagram of the cross brace of this utility model.

[0017] The image shows:

[0018] 1. Crossbeam; 2. Horizontal brace; 3. Sleeve rod; 4. Hinge; 5. A-beam support; 6. Connecting rod; 7. B-beam support; 8. A bolt; 9. B bolt; 10. A reinforcing rib; 11. B reinforcing rib; 12. Conical head; 13. Lifting hole. Detailed Implementation

[0019] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a simple device for trench excavation support, including two crossbeams 1, with cross bracing rods 2 fixedly connected between the two crossbeams 1. A sleeve rod 3 is sleeved on the surface of the cross bracing rod 2. Multiple hinges 4 are fixedly connected to the lower surface of the crossbeams 1 by screws. An A-beam support 5 is rotatably connected to the crossbeams 1 through the hinges 4. A connecting rod 6 is fixedly connected to the top of one side of the A-beam support 5, and a B-beam support 7 is fixedly connected to one side of the connecting rod 6.

[0022] Two crossbeams 1 are connected to sleeve rods 3 via cross bracing rods 2, and the spacing between the crossbeams 1 can be adjusted according to the size of the pipe trench. Large mechanical equipment such as excavators are used to drive the A-beam support 5 and B-beam support 7 into the soil to support the soil around the pipe trench. Then, the excavator is used to excavate the pipe trench to 20 cm above the foundation bottom elevation, and then it is manually cleared to the design elevation to complete the excavation of the pipe trench foundation pit.

[0023] The surface of the cross brace 2 has multiple holes, and bolts A8 are inserted into the holes. The cross brace 2 is fixed to the sleeve 3 by bolts A8.

[0024] By adjusting the distance between the cross brace 2 and the sleeve 3, the spacing can be adjusted according to the size of the pipe trench.

[0025] A hole is provided on one side of the inner wall of the A-beam support 5. A B bolt 9 is inserted into the hole, and the A-beam support 5 is fixed to the crossbeam 1 by the B bolt 9.

[0026] The A-beam support 5 can be rotated via hinge 4, which facilitates the loading and movement of the equipment. It can be unfolded for use, and the angle of the A-beam support 5 can be fixed by bolt B 9 after unfolding.

[0027] A reinforcing rib 10 is welded between the connecting rod 6 and the A-beam support 5 and the B-beam support 7. Lifting holes 13 are opened at the top of the inner wall of the A-beam support 5 and the B-beam support 7.

[0028] The strength of the A-beam support 5 and the B-beam support 7 is increased by the A-reinforcing rib 10, which prevents breakage and bending during use. During dismantling, the equipment can be lifted and dismantled through the lifting hole 13.

[0029] A reinforcing rib 11 (B) is welded between the crossbeam 1 and the cross brace 2. A tapered head 12 is provided at the bottom of both the A I-beam support 5 and the B I-beam support 7.

[0030] The strength between the crossbeam 1 and the cross brace 2 is increased by the B reinforcing rib 11, and the A I-beam support 5 and the B I-beam support 7 are easily inserted into the ground by the conical head 12.

[0031] Specifically, the simple device used for trench excavation support works as follows: When in use, the device is unfolded, and the distance between the two crossbeams 1 is adjusted according to the width of the trench. Then, large mechanical equipment is used to drive the A-beam support 5 and B-beam support 7 into the soil, thus forming a simple foundation pit support. Unlike Larssen sheet piles, which require each frame to be tightly interlocked and have low support efficiency, this device can quickly provide support to the soil. It has high installation and dismantling efficiency, and the materials are simple to obtain and the manufacturing cost is low, making it convenient for projects with tight schedules.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A simple device for trench excavation support, comprising two crossbeams (1), characterized in that: A cross brace (2) is fixedly connected between the two cross beams (1). A sleeve rod (3) is sleeved on the surface of the cross brace (2). Multiple hinges (4) are fixedly connected to the lower surface of the cross beam (1) by screws. An A-beam support (5) is rotatably connected to the cross beam (1) through the hinges (4). A connecting rod (6) is fixedly connected to the top of one side of the A-beam support (5). A B-beam support (7) is fixedly connected to one side of the connecting rod (6).

2. The simple device for trench excavation support according to claim 1, characterized in that: The surface of the cross brace (2) is provided with multiple holes, and A bolts (8) are inserted into the holes. The cross brace (2) is fixed to the sleeve rod (3) by the A bolts (8).

3. A simple device for trench excavation support according to claim 1, characterized in that: An insertion hole is provided on one side of the inner wall of the A-beam support (5), and a B bolt (9) is inserted into the insertion hole. The A-beam support (5) is fixed to the crossbeam (1) by the B bolt (9).

4. A simple device for trench excavation support according to claim 1, characterized in that: A reinforcing rib (10) is welded between the connecting rod (6) and the A-beam support (5) and the B-beam support (7). The top of the inner wall of the A-beam support (5) and the B-beam support (7) are provided with lifting holes (13).

5. A simple device for trench excavation support according to claim 1, characterized in that: A B reinforcing rib (11) is welded between the crossbeam (1) and the cross brace (2), and a tapered head (12) is provided at the bottom end of both the A I-beam support (5) and the B I-beam support (7).