A continuously wound glass fiber reinforced plastic jacking pipe with grouting structure

Abstract

The utility model discloses a continuously wound glass fiber reinforced plastic jacking pipe with a grouting structure, comprising a jacking pipe body and a grouting through hole arranged on the jacking pipe body; the utility model is characterized in that a grouting component is installed on the grouting through hole, which is convenient for grouting and can prevent slurry from flowing back. The utility model ensures the airtightness and stability between the grouting component and the jacking pipe body by installing the grouting component on the jacking pipe body, reduces the trial of chemicals such as glue, and abandons the method of electric welding, so as to achieve energy saving and emission reduction, and the installation process is simpler, which greatly reduces the labor intensity of employees and improves work efficiency; by using a one-way valve to prevent slurry from flowing back into the inner wall of the jacking pipe body, and using a seal to seal the shell after grouting, the normal use of the jacking pipe is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of continuously wound glass fiber reinforced plastic pipes, in particular to a continuously wound glass fiber reinforced plastic jacking pipe with a grouting structure. Background Art

[0002] The underground pipeline network is an important part of urban infrastructure. The traditional underground pipeline construction method is the "trench laying method", which has a great impact on cities with busy traffic, dense population, underground structures and complex pipelines. The construction will bring many inconveniences to citizens' work and life. The jacking method uses a non-trenching dark excavation method for construction, which has the advantages of occupying less area, saving land, moving the construction surface underground, not affecting transportation, and not damaging existing underground pipelines and buildings. When crossing obstacles such as railways, roads, rivers, buildings, etc., it can significantly reduce the workload on the ground along the line, save money and time, and significantly reduce the cost of the project;

[0003] Because the FRP pipe jacking is constructed by the trenchless jacking method, it is necessary to install grouting holes to grout from the inside of the pipe to the outside of the pipe to reduce the resistance between the outer wall of the pipe and the external environment, increase the jacking distance, and improve the construction efficiency;

[0004] The existing grouting hole process for top pipes is to first drill holes with a drilling rig, then fix the stainless steel plugs by welding or gluing, and seal them with raw tape after grouting, and seal the inside and outside by hand paste to prevent sewage from flowing into the pipe. This method is costly, complicated to install, and the use of glue and welding methods does not achieve green environmental protection, energy saving and emission reduction. At the same time, the installation process requires more manpower and time, and the production efficiency is slow. It is also impossible to install the grouting holes of the top pipe in time on the construction site, which will affect the construction process. Therefore, a continuous winding fiberglass top pipe with a grouting structure is proposed to improve the installation efficiency. Summary of the invention

[0005] The utility model aims to solve the above problems and proposes a continuously wound glass fiber reinforced plastic jacking pipe with a grouting structure.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a continuously wound fiberglass reinforced plastic jacking pipe with a grouting structure, comprising a jacking pipe body and a grouting through hole arranged on the jacking pipe body; wherein the grouting through hole is equipped with a grouting component which facilitates grouting and can prevent slurry backflow.

[0007] Preferably, the grouting assembly comprises a shell installed in the grouting through hole; a one-way valve for preventing the slurry from flowing back can be detachably installed on the shell.

[0008] Preferably, a sealing member is also installed on the housing.

[0009] Preferably, the sealing member comprises a sealing cover detachably mounted on the housing and a sealing ring mounted between the sealing cover and the housing.

[0010] Preferably, the sealing cover is provided with an external thread; and the housing is provided with an internal thread matching the external thread.

[0011] Preferably, the sealing cover is also provided with a hexagonal hole for facilitating installation of the sealing cover.

[0012] Preferably, the outer surface of the shell is a conical structure.

[0013] Preferably, the one-way valve comprises a one-way valve housing, a flip shaft movably mounted on the one-way valve housing, and a valve plate mounted on the flip shaft.

[0014] Preferably, the one-way valve housing is also provided with an external thread connected to the one-way valve housing.

[0015] The beneficial effects of the utility model are as follows: by installing the grouting assembly on the jacking pipe body, the airtightness and stability between the grouting assembly and the jacking pipe body are ensured, the trial use of chemicals such as glue is reduced, and the electric welding method is abandoned, so that energy saving and emission reduction are achieved, the installation process is simpler, the labor intensity of employees is greatly reduced, and the work efficiency is improved;

[0016] A one-way valve is used to prevent the slurry from flowing back into the inner wall of the jacking pipe body, and a seal is used to seal the shell after grouting, thereby ensuring the normal use of the jacking pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a partial structural schematic diagram of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the shell of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the sealing cover of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the one-way valve of the utility model.

[0022] Legend: 1. Pipe body; 101. Grouting through hole; 2. Shell; 201. Internal thread; 3. One-way valve; 301. One-way valve housing; 302. Flip shaft; 303. Valve plate; 4. Seal; 401. Sealing cover; 402. Sealing ring; 403. External thread; 404. Hexagonal socket hole; 5. Grouting assembly. DETAILED DESCRIPTION

[0023] Next, we further explain the continuous winding fiberglass reinforced plastic jacking pipe with a grouting structure described in the utility model in conjunction with the accompanying drawings.

[0024] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Participate in the Figure 1-5 As shown, in this embodiment, a continuous winding glass fiber reinforced plastic jacking pipe with a grouting structure includes a jacking pipe body 1 and a grouting through hole 101 arranged on the jacking pipe body 1; it is characterized in that a grouting component 5 is installed on the grouting through hole 101 to facilitate grouting and prevent slurry from flowing back. By installing the grouting component 5 on the jacking pipe body 1, the airtightness and stability between the grouting component 5 and the jacking pipe body 1 are ensured, the trial of chemicals such as glue is reduced, and the method of electric welding is abandoned, so that energy saving and emission reduction are achieved, the installation process is simpler, the labor intensity of employees is greatly reduced, and the work efficiency is improved.

[0027] Participate in the Figure 1-5 As shown, the grouting assembly 5 includes a shell 2 installed in the grouting through hole 101; a one-way valve 3 for preventing slurry from flowing back can be detachably installed on the shell 2; a sealing member 4 is also installed on the shell 2; the one-way valve 3 is used to prevent the slurry from flowing back into the inner wall of the jacking pipe body 1, and the sealing member 4 is used to seal the shell 2 after the grouting is completed, thereby ensuring the normal use of the jacking pipe.

[0028] Participate in the Figure 2 , 4As shown, the sealing member 4 comprises a sealing cover 401 detachably mounted on the housing 2 and a sealing ring 402 mounted between the sealing cover 401 and the housing 2. The sealing cover 401 is provided with an external thread 403; the sealing cover 401 is provided with an external thread 403; the housing 2 is provided with an internal thread 201 adapted to the external thread 403; the sealing cover 401 is also provided with an internal hexagonal hole 404 for facilitating the installation of the sealing cover 401; the external thread 403 on the sealing cover 401 is adapted to the internal thread 201 on the housing 2, the sealing cover 401 is screwed and installed on the housing 2, and the sealing ring 402 is used to seal the housing 2 and the sealing cover 401, so as to facilitate the installation of the sealing cover 401, and also increase the sealing performance between the housing 2 and the sealing cover 401, prevent the slurry from flowing back into the inner wall of the jacking pipe body 1, and ensure the normal use of the jacking pipe.

[0029] Participate in the Figure 3 As shown, the outer surface of the shell 2 is a conical structure; by setting the shell 2 as a conical structure, the end with a smaller diameter is installed from one end of the grouting through hole 101 during installation, and then the shell 2 is gradually inserted into the grouting through hole 101 through a tool until the shell 2 reaches the set position of the grouting through hole and stops being inserted; during the insertion process, since the shell is a conical structure and is made of resin material, it has a certain shrinkage, so the shell 2 and the grouting through hole 101 can be tightly connected, so that the shell 2 and the grouting through hole 101 are airtight and stable, thereby reducing the working time of employees and greatly improving work efficiency.

[0030] Participate in the Figure 5 As shown, the one-way valve 3 includes a one-way valve housing 301, a flip shaft 302 movably installed on the one-way valve housing 301, and a valve plate 303 installed on the flip shaft 302; the one-way valve housing 301 is also provided with an external thread 403 connected to the one-way valve housing 301; the one-way valve housing 301 is detachably installed on the shell 2 through the external thread 403 on the one-way valve housing 301, thereby facilitating the installation of the one-way valve housing 301; the valve plate 303 is pushed to rotate along the flip shaft 302 by the pressure of the slurry to perform grouting, thereby preventing the slurry from flowing back into the inner wall of the jacking pipe body 1, thereby ensuring the normal use of the jacking pipe.

[0031] During the use of the utility model, when grouting, the sealing cover is unscrewed outwards, and the grouting pipe is installed in the shell body 2. The pressure of the slurry pushes the valve plate 303 to rotate along the flip axis 302 for grouting. After the grouting is completed, the valve plate 303 rotates along the flip axis 302 to reset due to the absence of slurry pressure, preventing the slurry from flowing back into the inner wall of the top pipe body 1. Then, a hexagonal wrench is inserted into the hexagonal hole 404 on the sealing cover 401, and the sealing cover 401 is tightened and installed on the shell body 2. At the same time, the inner expansion ring 402 is used to seal the shell body 2 and the sealing cover 401, thereby increasing the sealing performance between the shell body 2 and the sealing cover 401.

[0032] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A continuously wound glass fiber reinforced plastic jacking pipe with a grouting structure, comprising a jacking pipe body (1) and a grouting through hole (101) arranged on the jacking pipe body (1); wherein: The grouting through hole (101) is provided with a grouting assembly (5) which facilitates grouting and can prevent slurry from flowing back.

2. The continuously wound fiberglass jacking pipe with grouting structure according to claim 1, characterized in that: The grouting assembly (5) comprises a housing (2) installed in a grouting through hole (101); a one-way valve (3) for preventing slurry from flowing back is detachably mounted on the housing (2).

3. The continuously wound fiberglass jacking pipe with grouting structure according to claim 2, characterized in that: A sealing member (4) is also installed on the housing (2).

4. The continuously wound fiberglass jacking pipe with a grouting structure according to claim 3, characterized in that: The sealing member (4) comprises a sealing cover (401) detachably mounted on the housing (2) and a sealing ring (402) mounted between the sealing cover (401) and the housing (2).

5. The continuously wound fiberglass jacking pipe with a grouting structure according to claim 4, characterized in that: The sealing cover (401) is provided with an external thread (403); and the housing (2) is provided with an internal thread (201) adapted to the external thread (403).

6. The continuously wound fiberglass jacking pipe with grouting structure according to claim 5, characterized in that: The sealing cover (401) is also provided with a hexagonal hole (404) for facilitating installation of the sealing cover (401).

7. The continuously wound fiberglass jacking pipe with a grouting structure according to claim 2, characterized in that: The outer surface of the shell (2) is a conical structure.

8. The continuously wound fiberglass jacking pipe with grouting structure according to claim 2, characterized in that: The one-way valve (3) comprises a one-way valve housing (301), a flip shaft (302) movably mounted on the one-way valve housing (301), and a valve plate (303) mounted on the flip shaft (302).

9. The continuously wound fiberglass jacking pipe with grouting structure according to claim 8, characterized in that: The one-way valve housing (301) is also provided with an external thread (403) connected to the one-way valve housing (301).

Images