Outdoor pipeline excavation supporting practical tool without sloping

By using modularly designed support plate units and keel structures, the problem of slope protection during pipeline trench excavation is solved, enabling support without slope protection, improving construction safety and efficiency, and adapting to different trench depths and soil conditions.

CN224133762UActive Publication Date: 2026-04-17CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP
Filing Date
2025-05-20
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing technologies require slope excavation in pipeline foundation pit trenching, which results in lengthy preparatory work, difficulty in controlling the slope coefficient, and low construction collapse safety factor.

Method used

The modular support plate unit forms a grid structure through vertical and horizontal keels, and together with the convex strips and side plates, it can be spliced ​​vertically and horizontally. It is fixed by steel support pipes and bolt and nut assemblies, which can adapt to trenches of different heights.

Benefits of technology

It achieves support without slope protection, flexibly adjusts the height of the support plate, improves construction safety and efficiency, prevents trench collapse, is suitable for various soil conditions and trench depths, and enhances the construction safety protection factor and excavation efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224133762U_ABST
    Figure CN224133762U_ABST
Patent Text Reader

Abstract

The utility model relates to a practical tool for excavating and supporting an outdoor pipeline without sloping, which comprises a supporting plate unit, a plurality of grooves are arranged on the inner surface of the supporting plate unit at intervals, a plurality of raised lines are formed on the back of the supporting plate unit, side plates are arranged on two sides of the supporting plate unit, and intervals are reserved between the raised lines and the side plates; one limb of the angle steel is fixed on the surface of the raised line, and the other limb is fixed on the back of the side plate, so that a hole is formed between the angle steel and the back of the support plate unit; the vertical keel is arranged in the holes of the at least two supporting plate units which are assembled up and down in a penetrating manner and is fixed with the angle steel; and the transverse keels are filled between the adjacent raised lines and are fixed with the raised lines, and the two ends of each transverse keel are fixed on the vertical keels. Modularized splicing can be achieved, and the height of the supporting plate can be flexibly adjusted so as to adapt to grooves of different heights.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering, and in particular to a practical tool for outdoor pipeline excavation and support without slope protection. Background Technology

[0002] During the excavation of pipeline foundation pits and trenches, slope excavation is usually required. This construction method has the following drawbacks: first, the preliminary technical preparation work is relatively long; second, the slope coefficient is not easy to control; and third, the construction collapse prevention safety factor is not high during pipeline installation.

[0003] In existing technologies, slope excavation can be avoided by setting up a support structure in the trench. For example, Chinese Utility Model Patent Publication No. CN 216713052 U discloses an adjustable trench excavation support device. It includes a support structure and a supporting structure, with the supporting structure positioned in the middle of the support structure. The support structure has connecting plates that are correspondingly and tightly attached to both sides of the trench soil. Support rods are spaced apart along the width direction on the other side of the connecting plates. A hydraulic cylinder and piston rod are installed between the corresponding support rods on both sides of the trench soil. However, the support plates are not modularly assembled, making it difficult to adapt to the trench height and resulting in poor flexibility. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a practical tool for outdoor pipeline excavation and support without slope protection. It can achieve modular splicing and is conducive to flexibly adjusting the height of the support plate to adapt to trenches of different heights.

[0005] To solve the above problems, a practical tool for outdoor pipeline excavation and support without slope protection was adopted, which includes:

[0006] The support plate unit has multiple grooves spaced apart on its inner surface, forming multiple convex strips on its back side. It has side plates on both sides, with a pre-reserved gap between the convex strips and the side plates.

[0007] Angle steel, one leg of which is fixed to the surface of the convex strip, and the other leg of which is fixed to the back of the side plate, so that a hole is formed between the angle steel and the back of the support plate unit;

[0008] The vertical keel is inserted through the holes of at least two upper and lower assembled support plate units and fixed to the angle steel;

[0009] The horizontal keel is filled between adjacent convex strips and fixed to the convex strips, and its two ends are fixed to the vertical keel.

[0010] With this structure, the support plate units can be spliced ​​together vertically to adapt to trenches of different heights;

[0011] The vertical and horizontal keels form a grid structure, which, together with the convex strips, firmly fixes the upper and lower spliced ​​support plate units, so that multiple upper and lower adjacent support plate units form a whole.

[0012] As a further improvement of this utility model, a lug is provided on the side plate.

[0013] With this structure, the lugs facilitate hoisting.

[0014] As a further improvement of this utility model, splicing plates are provided on both sides of the side plate, and the splicing plates of adjacent support plate units are slots and plugs to each other for plug-in adaptation.

[0015] With this structure, the splicing plates can be easily spliced ​​from side to side to extend the support length.

[0016] As a further improvement of this utility model, a U-shaped rod is inserted through and fixed in the lug.

[0017] With this structure, the U-shaped rod is advantageous for hook connection.

[0018] As a further improvement of this utility model, the end of the splicing plate is bent, and the splicing plates of adjacent support plate units are hooked together.

[0019] This structure, with its interlocking design, makes the left and right sides more stable when joined together.

[0020] As a further improvement of this utility model, a steel collar is provided on the inner surface of the support plate unit, and a steel support pipe is provided between two support plate units. The steel support pipe and the steel collar are sleeved together, and the sleeve is fixed by bolt and nut assembly.

[0021] With this structure, two support plate units are set opposite each other to abut against the slope, and then pressed together by steel support pipes to achieve the support effect.

[0022] As a further improvement of this utility model, the steel support pipe is a threaded telescopic pipe.

[0023] With this structure, the threaded expansion joint is advantageous for adjusting the support width.

[0024] As a further improvement of this utility model, the lugs of adjacent support plate units abut against each other.

[0025] With this structure, the lugs prevent the support plate units from sliding left and right after contact, making the left and right splicing of the support plate units tighter.

[0026] This invention enables modular splicing, which facilitates flexible adjustment of the support plate height to adapt to trenches of different heights. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment.

[0028] Figure 2 This is a structural diagram of the splicing part.

[0029] Figure 3 This is a schematic diagram of the excavation path.

[0030] Reference numerals: 1. Support plate unit; 101. Groove; 102. Raised strip; 103. Side plate; 104. Lug; 105. U-shaped rod; 106. Splicing plate;

[0031] 2. Angle steel; 3. Holes; 4. Vertical keel; 5. Horizontal keel; 6. Steel collar; 7. Steel support pipe; 8. Bolt and nut assembly. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Example 1

[0035] like Figures 1-3 As shown, a practical tool for outdoor pipeline excavation and support without slope protection includes:

[0036] The support plate unit 1 has multiple grooves 101 spaced apart on its inner surface, forming multiple protrusions 102 on its back side, and has side plates 103 on both sides, with a reserved gap between the protrusions 102 and the side plates 103.

[0037] Angle steel 2, one leg of which is fixed to the surface of the convex strip 102, and the other leg of which is fixed to the back of the side plate 103, so that a hole 3 is formed between the angle steel 2 and the back of the support plate unit 1;

[0038] The vertical keel 4 is inserted through the holes 3 of at least two vertically assembled support plate units 1 and fixed to the angle steel 2;

[0039] The horizontal keel 5 is filled between adjacent protrusions 102 and fixed to the protrusions 102, and its two ends are fixed to the vertical keel 4.

[0040] With this structure, the support plate unit 1 can be spliced ​​up and down to adapt to trenches of different heights;

[0041] The vertical keel 4 and the horizontal keel 5 form a grid structure, which, together with the protruding strip 102, firmly fixes the upper and lower spliced ​​support plate units 1, so that multiple upper and lower adjacent support plate units 1 form a whole.

[0042] In this embodiment, a lug 104 is provided on the side plate 103.

[0043] With this structure, the lug 104 is easy to hoist.

[0044] In this embodiment, splicing plates 106 are provided on both sides of the side plate 103. The splicing plates 106 of adjacent support plate units 1 are slots and plugs to each other and are plugged in for adaptation.

[0045] With this structure, the splicing plate 106 can be easily spliced ​​from left to right to extend the support length.

[0046] In this embodiment, a U-shaped rod 105 is inserted through and fixed in the lug 104.

[0047] With this structure, the U-shaped rod 105 is conducive to hook connection.

[0048] In this embodiment, the end of the splicing plate 106 is bent, and the splicing plates 106 of adjacent support plate units 1 are hooked together.

[0049] This structure, with its interlocking design, makes the left and right sides more stable when joined together.

[0050] In this embodiment, a steel collar 6 is provided on the inner surface of the support plate unit 1, and a steel support pipe 7 is provided between two support plate units 1. The steel support pipe 7 and the steel collar 6 are sleeved together, and the sleeve is fixed by bolt and nut assembly 8.

[0051] With this structure, two support plate units 1 are set opposite each other to abut against the slope, and then pressed together by steel support pipes 7 to achieve the support effect.

[0052] In this embodiment, the steel support pipe 7 is a threaded telescopic pipe.

[0053] With this structure, the threaded expansion joint is advantageous for adjusting the support width.

[0054] In this embodiment, the lugs 104 of adjacent support plate units 1 abut against each other.

[0055] With this structure, the lugs prevent the support plate unit 1 from sliding left and right after contact, making the support plate unit 1 more tightly spliced ​​left and right.

[0056] like Figure 3 As shown, in this embodiment, the construction section needs to be divided, generally with the section between wells as one construction section. In this embodiment, according to the pipeline laying and connection requirements and space requirements, after the pipeline is assembled on the ground, it is hoisted into the trench after the trench is excavated. Within the support range, the construction personnel connect the pipes and complete the corresponding tests. After the pipeline installation test of this section is completed, it is moved to the next construction section. And so on.

[0057] This embodiment aims to prevent trench collapse and ensure construction safety. It is modular, assembled, highly flexible, easy to install, and reusable. It is suitable for various soil conditions and trench depths, and can improve trench excavation efficiency, enabling simultaneous excavation and support.

[0058] This embodiment comprehensively considers the safety of outdoor pipeline construction and support, effectively improving the construction safety protection coefficient and eliminating the possibility of foundation pit collapse; at the same time, the outdoor pipeline construction is divided into flow sections, and the excavation, support, pipeline connection, testing and backfilling processes are connected in an orderly manner, which greatly improves the construction efficiency.

[0059] This embodiment provides a safe and efficient device for outdoor pipeline excavation construction, especially for projects in areas with average geology and tight schedules, and can be used as a reference for similar projects.

[0060] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.

Claims

1. A utility tool for the support of outdoor pipe excavation without the use of a bench, characterized in that include: The support plate unit (1) has multiple grooves (101) spaced apart on its inner surface, forming multiple convex strips (102) on its back side, and side plates (103) on both sides, with a reserved gap between the convex strips (102) and the side plates (103); Angle steel (2), one leg of which is fixed to the surface of the convex strip (102) and the other leg of which is fixed to the back of the side plate (103), so that a hole (3) is formed between the angle steel (2) and the back of the support plate unit (1). The vertical keel (4) is inserted through the holes (3) of at least two upper and lower assembled support plate units (1) and fixed to the angle steel (2); The transverse keel (5) is filled between adjacent protrusions (102) and fixed to the protrusions (102), with its two ends fixed to the vertical keel (4).

2. The utility tool for trenchless outdoor pipe excavation support without benching according to claim 1, characterized in that Lugs (104) are provided on the side plate (103).

3. The utility tool for trenchless outdoor pipe excavation support without benching according to claim 1, characterized in that Splicing plates (106) are provided on both sides of the side plate (103). The splicing plates (106) of adjacent support plate units (1) are slots and plugs to each other and are plugged in for adaptation.

4. The practical tool for outdoor pipeline excavation and support without slope protection as described in claim 2, characterized in that... A U-shaped rod (105) is inserted through and fixed in the lug (104).

5. The utility tool for trenchless outdoor pipe excavation support without benching according to claim 3, characterized in that The splicing plate (106) is bent at the end, and the splicing plates (106) of adjacent support plate units (1) are hooked together.

6. The utility tool for open cut pipeline excavation and protection without benching according to claim 1, wherein A steel collar (6) is provided on the inner surface of the support plate unit (1), and a steel support pipe (7) is provided between two support plate units (1). The steel support pipe (7) and the steel collar (6) are connected in a sleeve, and the sleeve is fixed by a bolt and nut assembly (8).

7. The utility tool for open cut pipeline excavation and protection without benching according to claim 6, wherein The steel support pipe (7) is a threaded expansion joint.

8. The utility tool for open cut pipeline excavation and protection without benching according to claim 2, wherein The lugs (104) of the adjacent support plate unit (1) abut against each other.

Citation Information

Patent Citations

  • Adjustable rapid supporting device for trench excavation support

    CN216713052U