Buried pipeline overhaul well structure

Abstract

The utility model discloses a buried pipeline overhaul well structure, which relates to the technical field of pipeline overhaul wells and comprises an overhaul well body, through holes are formed in the inner walls of the left side and the right side of the inside of the overhaul well body, and pipeline bodies are mounted in the through holes. The opposite ends of the two pipeline bodies are each provided with a double-flange limiting telescopic connector assembly, a connecting pipeline is jointly installed between the two double-flange limiting telescopic connector assemblies, and the directions of the two double-flange limiting telescopic connector assemblies are opposite. According to the utility model, the problem that the buried pipeline is torn or broken due to displacement generated in a cold and hot environment or in a use process is solved by adding the double-flange limiting expansion joint assembly, and the pipeline does not exceed the limit when being stretched or compressed due to the limiting function of the expansion joint; therefore, the situation that the pipeline is broken due to excessive displacement is avoided, and the protection effect is crucial to safe and stable operation of the pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline inspection wells, in particular to a buried pipeline inspection well structure. Background Art

[0002] The current water supply pipelines within the enterprise include: cooling circulating water, sewage, production water, domestic water, etc. In order to save resources and land, all pipelines are laid underground, and maintenance valve wells are built at intervals. Valves are installed in the wells so that in case of leakage, a small area can be cut off to stop water supply / drainage, ensuring the normal operation of the large process system. This not only ensures the safe and stable operation of the process system, but also reduces the inspection and maintenance costs to a minimum.

[0003] When the existing underground pipeline is filled with water, the weight of the pipeline itself increases, and the flow of water pressure and temperature will produce stress and resonance, causing the pipeline and valve well to sink or the pipeline to shift, causing the pipeline to crack and leak, affecting the operating stability of the system. Utility Model Content

[0004] The purpose of the utility model is to provide an underground pipeline inspection well structure to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an underground pipeline inspection well structure, including an inspection well body, the inner walls on the left and right sides of the inspection well body are provided with through holes, the interior of the through holes is provided with a pipeline body, and the two ends of the two pipeline bodies facing each other are provided with a double flange limit expansion joint assembly, a connecting pipe is commonly installed between the two double flange limit expansion joint assemblies, and the directions of the two double flange limit expansion joint assemblies are opposite.

[0006] Preferably, two platforms are symmetrically installed inside the inspection well body, a mounting groove is provided between the two platforms, and the connecting pipe is located inside the mounting groove.

[0007] Preferably, a support platform is installed outside the connecting pipe, and the bottom of the support platform is connected to the mounting groove.

[0008] Preferably, a support base is installed at the outer side of each of the two through holes, a plurality of upper protection frames are installed in an array on the upper end of the support base, and the pipeline body is installed between the support base and the upper protection frames.

[0009] Preferably, a valve is provided at the upper end of the pipeline body at one end, and the valve is located above the ground.

[0010] Preferably, the double flange limited expansion joint assembly includes a limited short tube, screws, a pressure cover and a main pipe. The main pipe is connected to one end of the connecting pipe, and a pressure cover is installed on the other end of the main pipe. The internal sliding connection of the main pipe is the limited short tube, and the limited short tube, the pressure cover and the main pipe are all connected by screws.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The structure of the local buried pipeline inspection well is to set a connecting pipe inside the inspection well body, and the two ends of the connecting pipe are connected to the pipeline body through two double flange limit expansion joint assemblies. By adding double flange limit expansion joint assemblies, the problem of pipeline tearing or rupture caused by displacement of the buried pipeline in hot and cold environments or during use is solved. Due to the limit function of the expansion joint, the pipeline will not exceed the limit when stretched or compressed, thereby avoiding the situation of pipeline rupture due to excessive displacement. This protective effect is crucial to the safe and stable operation of the pipeline.

[0013] 2. The local buried pipeline inspection well structure can prevent the pipeline from sinking by setting a support base at the lower end of the pipeline body, and set up an upper protection frame at the upper end of the support base to prevent more soil from causing greater pressure on the pipeline body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the inspection well body of the utility model;

[0016] Figure 3 It is a structural schematic diagram of a double-flange limited expansion joint assembly of the utility model;

[0017] Figure 4 It is a cross-sectional view of the double-flange limited expansion joint assembly of the utility model.

[0018] In the figure: 1. Inspection well body; 2. Platform; 3. Installation groove; 4. Support platform; 5. Connecting pipe; 6. Double flange limit expansion joint assembly; 601. Limit short pipe; 602. Screw; 603. Pressure cover; 604. Main pipe; 7. Pipe body; 8. Through hole; 9. Support base; 10. Upper protection frame; 11. Valve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figures 1 to 4 As shown, the buried pipeline inspection well structure of this embodiment includes an inspection well body 1, and the inner walls on the left and right sides of the inspection well body 1 are provided with through holes 8, and the two through holes 8 are arranged oppositely and have the same size. A pipeline body 7 is installed inside the through hole 8, and one end of the pipeline body 7 passes through the through hole 8 and penetrates into the interior of the inspection well body 1. A double-flange limiting expansion joint assembly 6 is installed at the opposite ends of the two pipeline bodies 7, and the expansion joint part of the double-flange limiting expansion joint assembly 6 is connected to the pipeline body 7. A connecting pipe 5 is installed between the two double-flange limiting expansion joint assemblies 6, and the two double-flange limiting expansion joint assemblies 6 are connected through the connecting pipe 5, and then the two pipeline bodies 7 are connected. The directions of the two double-flange limiting expansion joint assemblies 6 are opposite, and the expansion joint of the double-flange limiting expansion joint assembly 6 is connected to the pipeline body 7, and the fixed interface is connected to the connecting pipe 5. When the double-flange limiting expansion joint assembly 6 flows through the liquid inside, it will telescope and move toward the expansion interface and the fixed interface side, thereby buffering the pressure when the liquid is flowing, and avoiding the phenomenon of displacement of the pipeline body 7.

[0023] Specifically, two platforms 2 are symmetrically installed inside the inspection well body 1, an installation groove 3 is set between the two platforms 2, the connecting pipe 5 is located inside the installation groove 3, the platform 2 is used to provide support for the user, and the installation groove 3 is used to install the connecting pipe 5 and the double flange limit expansion joint assembly 6.

[0024] Furthermore, a support platform 4 is installed on the outside of the connecting pipe 5, and the bottom of the support platform 4 is connected to the mounting groove 3. The support platform 4 can provide support for the connecting pipe 5, enhance the stability of the connecting pipe 5, and avoid displacement of the connecting pipe 5.

[0025] Furthermore, a support base 9 is installed at the outer side of each of the two through holes 8, and a plurality of upper protective frames 10 are installed in an array on the upper end of the support base 9. The pipeline body 7 is installed between the support base 9 and the upper protective frame 10. By arranging the support base 9 at the lower end of the pipeline body 7, it is possible to prevent the pipeline from sinking, and by erecting the upper protective frame 10 at the upper end of the support base 9, it is possible to prevent more soil from causing greater pressure on the pipeline body 7.

[0026] Furthermore, a valve 11 is provided at the upper end of the pipeline body 7 at one end. The valve 11 is located above the ground. The valve 11 can control the opening and closing of the flow path inside the pipeline body 7.

[0027] Furthermore, the double flange limited expansion joint assembly 6 includes a limited short tube 601, a screw 602, a pressure cap 603 and a main pipe 604. The main pipe 604 is connected to one end of the connecting pipe 5, and the other end of the main pipe 604 is installed with a pressure cap 603. The internal sliding connection of the main pipe 604 is the limited short tube 601. The limited short tube 601, the pressure cap 603 and the main pipe 604 are all connected by screws 602. When liquid flows inside the double flange limited expansion joint assembly 6, the limited short tube 601 will be telescopically moved toward the direction of the main pipe 604 under the impact of the liquid. When it contacts the pressure cap 603, it is at the maximum moving distance. A sealing ring is installed between the pressure cap 603 and the main pipe 604 to enhance the sealing. The double flange limited expansion joint assembly 6 is a prior art feature on the market and will not be described in detail here.

[0028] The method of use of this embodiment is as follows: by arranging a connecting pipe 5 inside the inspection well body 1, the two ends of the connecting pipe 5 are connected to the pipe body 7 through two double-flange limit expansion joint assemblies 6, and by adding the double-flange limit expansion joint assemblies 6, the problem of the buried pipe being torn or broken due to displacement in a cold or hot environment or during use is solved. Due to the limit function of the expansion joint, the pipe will not exceed the limit when stretched or compressed, thereby avoiding the situation where the pipe is broken due to excessive displacement. This protective effect is crucial to the safe and stable operation of the pipeline.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An underground pipeline inspection well structure, comprising an inspection well body (1), characterized in that: The inner walls on both left and right sides of the inspection well body (1) are provided with through holes (8), a pipe body (7) is installed inside the through holes (8), and a double-flange limit expansion joint assembly (6) is installed at the opposite ends of the two pipe bodies (7), a connecting pipe (5) is installed between the two double-flange limit expansion joint assemblies (6), and the directions of the two double-flange limit expansion joint assemblies (6) are opposite.

2. The underground pipeline inspection well structure according to claim 1 is characterized in that: Two platforms (2) are symmetrically installed inside the inspection well body (1), an installation groove (3) is arranged between the two platforms (2), and the connecting pipe (5) is located inside the installation groove (3).

3. The underground pipeline inspection well structure according to claim 2 is characterized in that: A support platform (4) is installed outside the connecting pipe (5), and the bottom of the support platform (4) is connected to the installation groove (3).

4. The underground pipeline inspection well structure according to claim 1 is characterized in that: A support base (9) is installed at the outer side of each of the two through holes (8); a plurality of upper protection frames (10) are installed in an array on the upper end of the support base (9); and the pipeline body (7) is installed between the support base (9) and the upper protection frame (10).

5. The underground pipeline inspection well structure according to claim 1 is characterized in that: A valve (11) is provided at the upper end of the pipeline body (7) at one end, and the valve (11) is located above the ground.

6. The underground pipeline inspection well structure according to claim 1 is characterized in that: The double flange limited expansion joint assembly (6) comprises a limited short tube (601), a screw (602), a gland (603) and a main pipe (604); the main pipe (604) is connected to one end of the connecting pipe (5); the other end of the main pipe (604) is installed with a gland (603); the main pipe (604) is internally slidably connected to the limited short tube (601); the limited short tube (601), the gland (603) and the main pipe (604) are all connected via screws (602).

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