Pipeline plugging device for inspection well

Abstract

The utility model discloses a pipeline plugging device for an inspection well, which relates to the technical field of pipeline plugging devices, and comprises a treatment box, a water inlet pipe and a water outlet pipe which are symmetrically arranged on two opposite side surfaces of the bottom end of the treatment box, the water inlet pipe is connected with the inspection well, and the pipeline plugging device further comprises a plugging unit and a pressure relief unit which are arranged on the treatment box; the plugging unit comprises frame-shaped baffles, a hydraulic cylinder, a supporting arm, a frame-shaped carrier plate, a frame-shaped sealing strip and a plugging plate, and the two frame-shaped baffles are fixedly arranged on the inner wall of the middle end and the inner wall of the top end of the treatment box correspondingly; the pressure relief unit comprises a drainage transverse pipe, a valve body and a control valve rod. According to the utility model, when the frame-shaped support plate moves downwards to insert the frame-shaped sealing strip on the bottom surface of the frame-shaped support plate into the frame-shaped groove on the frame-shaped baffle plate positioned below, the two plugging plates symmetrically and fixedly arranged on the bottom surface of the frame-shaped support plate can be propped against the inner bottom surface of the treatment box for plugging operation, and the equipment is simple and convenient to adjust and assemble the plugging part without entering water.

Description

Technical Field

[0001] This utility model relates to the field of pipeline plugging technology, and in particular to a pipeline plugging device for inspection wells. Background Technology

[0002] In municipal engineering projects, especially during the construction of sewage pipelines, it is often necessary to partially block the sewage pipes and pump out the water to facilitate access for construction workers. The traditional method for blocking sewage pipes involves using inflatable sealing bags. However, when the water level in the manhole is high, the excessive water pressure makes sealing difficult, and the sealing bags are easily affected by debris in the pipes, leading to air leakage and other problems, thus rendering them ineffective.

[0003] Publication (Announcement) No. CN207935614U discloses a pipe plugging device, installed at a pipe in an inspection well. It includes: a connector that plugs into the pipe to seal it, and a release component on the connector for releasing the pipe from the seal. The connector is made of metal and includes: a flange with an outer diameter larger than the pipe's inner diameter, and a plug on the flange for plugging into the pipe. A first rubber sealing ring is provided at the internal corner of the plug and the flange. The release component includes: a drain pipe on the connector and a switch valve on the drain pipe. The pipe is sealed by the connector and the first rubber sealing ring through a plug-in connection, offering the advantage of easy installation. The connector is made of metal, making it suitable for use in pipes in different environments. The switch valve and drain pipe facilitate disassembly of the connector. Therefore, this pipe plugging device has the advantages of easy assembly and disassembly, strong adaptability, and good sealing effect.

[0004] While the above solutions are highly adaptable and effective in sealing, the assembly of the sealing device and the operation of draining and depressurizing require the use of the manhole, which is difficult. Therefore, we propose a pipe sealing device for manholes. Utility Model Content

[0005] The main purpose of this utility model is to provide a pipe plug for inspection wells. By setting a plugging unit and a pressure relief unit, it solves the problem that the assembly of the plug and the drainage and pressure relief operations need to be carried out inside the inspection well.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a pipe plug for inspection wells, including a processing box and an inlet pipe and an outlet pipe symmetrically arranged on opposite sides of the bottom end of the processing box, wherein the inlet pipe is connected to the inspection well, and further including: a plugging unit and a pressure relief unit arranged on the processing box;

[0007] The sealing unit includes a frame-shaped baffle, a hydraulic cylinder, a support arm, a frame-shaped carrier plate, a frame-shaped sealing strip, and a sealing plate. The two frame-shaped baffles are respectively fixedly installed on the inner wall of the middle section and the inner wall of the top section of the processing box, and frame-shaped grooves are opened at both ends of the two frame-shaped baffles. The hydraulic cylinder is fixedly installed on one side surface of the processing box. The support arm is in the shape of an inverted "L" and is fixedly installed on the top of the hydraulic cylinder, and the support arm extends into the processing box. The frame-shaped carrier plate is fixedly installed at the bottom end of the support arm and is located between the two frame-shaped baffles. Frame-shaped sealing strips with positions and sizes matching the positions and sizes of the frame-shaped grooves are fixedly installed on both the upper and lower surfaces of the frame-shaped carrier plate. The two sealing plates are symmetrically fixedly installed on the bottom surface of the frame-shaped carrier plate and extend into the bottom of the processing box.

[0008] The pressure relief unit includes a drain horizontal pipe, a valve body, and a control valve stem. The drain horizontal pipe is embedded in the center of the sides of two sealing plates. The valve body is installed on the outer circumference of the middle end of the drain horizontal pipe and is located between the two sealing plates. The control valve stem is installed on the valve body and is located inside the frame-shaped carrier plate.

[0009] Preferably, there are two hydraulic cylinders, which are located on opposite sides of the processing box.

[0010] Preferably, the support arm and the hydraulic cylinder are arranged in a one-to-one correspondence.

[0011] Preferably, the control valve stem and the drain horizontal pipe are arranged perpendicular to each other.

[0012] Preferably, the drainage horizontal pipe and the water inlet pipe are arranged parallel to each other.

[0013] Preferably, the frame-shaped baffle, frame-shaped carrier plate, frame-shaped sealing strip, and control valve rod are all located on the same vertical central axis.

[0014] Compared with the prior art, the pipe plugging device for inspection wells of this utility model has the following beneficial effects:

[0015] 1. In this utility model, by setting a sealing unit, after the water inlet pipe is connected to the inspection well, the drainage can be guided into the bottom of the treatment tank. The operation of the hydraulic cylinder on one side of the treatment tank can drive the frame-shaped carrier plate to rise and fall between the two frame-shaped baffles through the support arm in the shape of an inverted "L". When the frame-shaped carrier plate moves down and inserts the frame-shaped sealing strip on its bottom surface into the frame-shaped groove on the frame-shaped baffle below, the two sealing plates symmetrically fixed on the bottom surface of the frame-shaped carrier plate can abut against the bottom surface of the treatment tank to perform the sealing operation. When the frame-shaped carrier plate moves up and inserts the frame-shaped sealing strip on its top surface into the frame-shaped groove on the frame-shaped baffle above, the sealing plates are lifted synchronously, and the water can be discharged through the water outlet pipe without obstruction. The equipment is easy to adjust and assemble the sealing components without going into the water.

[0016] 2. In this utility model, by setting a pressure relief unit, the drainage horizontal pipe embedded in the center of the two sealing plates can be adjusted synchronously with the frame-shaped carrier plate. Before the frame-shaped carrier plate moves up to the sealing plate, the control valve rod can be rotated in the treatment box. The valve body installed on the outer circumference of the middle end of the drainage horizontal pipe and located between the two sealing plates will change the conduction state of the drainage horizontal pipe. Before the sealing plate moves up to restore drainage, the drainage horizontal pipe can be connected first to drain and relieve pressure. The equipment drainage and pressure relief operation is simple and does not require water to be used. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a pipe plug for inspection wells according to the present invention;

[0019] Figure 2 This is a top view schematic diagram of a pipe plug for inspection wells according to the present invention;

[0020] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 4 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0022] Figure 5 This is a front view structural diagram of a pipe plugging device for inspection wells according to the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Processing box;

[0025] 2. Water inlet pipe;

[0026] 3. Water outlet pipe;

[0027] 4. Sealing unit; 401. Frame baffle; 402. Hydraulic cylinder; 403. Support arm; 404. Frame carrier plate; 405. Frame sealing strip; 406. Sealing plate;

[0028] 5. Pressure relief unit; 501. Drainage horizontal pipe; 502. Valve body; 503. Control valve stem. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within 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. Example

[0032] like Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As shown, a pipe plug for a manhole includes a treatment box 1 and an inlet pipe 2 and an outlet pipe 3 symmetrically arranged on opposite sides of the bottom of the treatment box 1. The inlet pipe 2 is connected to the manhole. The device also includes a plugging unit 4 and a pressure relief unit 5 arranged on the treatment box 1.

[0033] The sealing unit 4 includes a frame baffle 401, a hydraulic cylinder 402, a support arm 403, a frame carrier plate 404, a frame sealing strip 405, and a sealing plate 406. The two frame baffles 401 are respectively fixedly installed on the inner wall of the middle section and the inner wall of the top section of the processing box 1, and the two frame baffles 401 have frame grooves at both ends facing each other. The hydraulic cylinder 402 is fixedly installed on one side surface of the processing box 1. The support arm 403 is in the shape of an inverted "L" and is fixedly installed at the top of the hydraulic cylinder 402, and the support arm 403 extends into the processing box 1. The frame carrier plate 404 is fixedly installed at the bottom end of the support arm 403 and is located between the two frame baffles 401. The upper and lower surfaces of the frame carrier plate 404 are fixedly provided with frame sealing strips 405 whose positions and sizes match the positions and sizes of the frame grooves. The two sealing plates 406 are symmetrically fixedly installed on the bottom surface of the frame carrier plate 404 and extend into the bottom of the processing box 1.

[0034] The pressure relief unit 5 includes a drain horizontal pipe 501, a valve body 502, and a control valve stem 503. The drain horizontal pipe 501 is embedded in the center of the sides of the two sealing plates 406. The valve body 502 is installed on the outer circumferential surface of the middle end of the drain horizontal pipe 501 and is located between the two sealing plates 406. The control valve stem 503 is installed on the valve body 502 and is located inside the frame-shaped carrier plate 404.

[0035] Furthermore, there are two hydraulic cylinders 402, which are located on opposite sides of the processing box 1.

[0036] Furthermore, the support arm 403 and the hydraulic cylinder 402 are arranged in a one-to-one correspondence.

[0037] Furthermore, the frame baffle 401, the frame carrier plate 404, the frame sealing strip 405, and the control valve stem 503 are all located on the same vertical central axis.

[0038] The sealing unit 4 makes the installation and assembly of the sealing components simple and does not require immersion in water. Example

[0039] like Figure 1 , Figure 3 , Figure 4 as well as Figure 5 As shown, a pipe plug for a manhole includes a treatment box 1 and an inlet pipe 2 and an outlet pipe 3 symmetrically arranged on opposite sides of the bottom of the treatment box 1. The inlet pipe 2 is connected to the manhole. The device also includes a plugging unit 4 and a pressure relief unit 5 arranged on the treatment box 1.

[0040] The sealing unit 4 includes a frame baffle 401, a hydraulic cylinder 402, a support arm 403, a frame carrier plate 404, a frame sealing strip 405, and a sealing plate 406. The two frame baffles 401 are respectively fixedly installed on the inner wall of the middle section and the inner wall of the top section of the processing box 1, and the two frame baffles 401 have frame grooves at both ends facing each other. The hydraulic cylinder 402 is fixedly installed on one side surface of the processing box 1. The support arm 403 is in the shape of an inverted "L" and is fixedly installed at the top of the hydraulic cylinder 402, and the support arm 403 extends into the processing box 1. The frame carrier plate 404 is fixedly installed at the bottom end of the support arm 403 and is located between the two frame baffles 401. The upper and lower surfaces of the frame carrier plate 404 are fixedly provided with frame sealing strips 405 whose positions and sizes match the positions and sizes of the frame grooves. The two sealing plates 406 are symmetrically fixedly installed on the bottom surface of the frame carrier plate 404 and extend into the bottom of the processing box 1.

[0041] The pressure relief unit 5 includes a drain horizontal pipe 501, a valve body 502, and a control valve stem 503. The drain horizontal pipe 501 is embedded in the center of the sides of the two sealing plates 406. The valve body 502 is installed on the outer circumferential surface of the middle end of the drain horizontal pipe 501 and is located between the two sealing plates 406. The control valve stem 503 is installed on the valve body 502 and is located inside the frame-shaped carrier plate 404.

[0042] Furthermore, the control valve stem 503 and the drain horizontal pipe 501 are arranged perpendicular to each other.

[0043] Furthermore, the horizontal drain pipe 501 and the water inlet pipe 2 are arranged parallel to each other.

[0044] Furthermore, the frame baffle 401, the frame carrier plate 404, the frame sealing strip 405, and the control valve stem 503 are all located on the same vertical central axis.

[0045] The pressure relief unit 5 makes the equipment's drainage and pressure relief operation simple and eliminates the need for submersion.

[0046] The working principle of this utility model is as follows:

[0047] After the inlet pipe 2 is connected to the inspection well, the drainage is directed into the bottom of the treatment tank 1. The hydraulic cylinder 402 on one side of the treatment tank 1 operates, which drives the frame-shaped carrier plate 404 to move up and down between the two frame-shaped baffles 401 via the support arm 403. When the frame-shaped carrier plate 404 moves down and inserts the frame-shaped sealing strip 405 on its bottom surface into the frame-shaped groove on the lower frame-shaped baffle 401, the two sealing plates 406 symmetrically fixed on the bottom surface of the frame-shaped carrier plate 404 abut against the bottom surface of the treatment tank 1 to perform a sealing operation. When the frame-shaped carrier plate 404 moves up and inserts the frame-shaped sealing strip 405 on its top surface into the groove on the lower frame-shaped baffle 401, the two sealing plates 406 are symmetrically fixed on the bottom surface of the frame-shaped carrier plate 404 to perform a sealing operation. When the frame-shaped groove on the upper frame-shaped baffle 401 is raised, the sealing plate 406 is raised simultaneously, and the water is discharged through the outlet pipe 3 without obstruction. The drainage horizontal pipe 501 is adjusted synchronously with the frame-shaped carrier plate 404. Before the frame-shaped carrier plate 404 is moved up to the sealing plate 406, the control valve rod 503 is rotated in the treatment box 1. The valve body 502, which is installed on the outer circumference of the middle end of the drainage horizontal pipe 501 and is located between the two sealing plates 406, changes the conduction state of the drainage horizontal pipe 501. Before the sealing plate 406 moves up to restore drainage, the drainage horizontal pipe 501 is first opened to drain and depressurize.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe plug for a manhole, comprising a treatment box (1) and an inlet pipe (2) and an outlet pipe (3) symmetrically arranged on opposite sides of the bottom end of the treatment box (1), wherein the inlet pipe (2) is connected to the manhole, characterized in that, Also includes: A sealing unit (4) and a pressure relief unit (5) are installed on the processing box (1); The sealing unit (4) includes a frame baffle (401), a hydraulic cylinder (402), a support arm (403), a frame carrier plate (404), a frame sealing strip (405), and a sealing plate (406). The two frame baffles (401) are respectively fixedly installed on the inner wall of the middle section and the inner wall of the top section of the processing box (1), and frame-shaped grooves are opened at both ends of the two frame baffles (401). The hydraulic cylinder (402) is fixedly installed on one side surface of the processing box (1), and the support arm (403) is in the shape of an inverted "L". And fixedly installed at the top of the hydraulic cylinder (402), and the support arm (403) extends into the processing box (1). The frame-shaped carrier plate (404) is fixedly installed at the bottom of the support arm (403) and located between the two frame-shaped baffles (401). The upper and lower surfaces of the frame-shaped carrier plate (404) are fixedly provided with frame-shaped sealing strips (405) whose positions and sizes match the positions and sizes of the frame-shaped grooves. The two sealing plates (406) are symmetrically fixedly installed on the bottom surface of the frame-shaped carrier plate (404) and extend into the bottom of the processing box (1). The pressure relief unit (5) includes a drainage horizontal pipe (501), a valve body (502), and a control valve stem (503). The drainage horizontal pipe (501) is embedded in the center of the side of two sealing plates (406). The valve body (502) is installed on the outer circumferential surface of the middle end of the drainage horizontal pipe (501) and located between the two sealing plates (406). The control valve stem (503) is installed on the valve body (502) and located inside the frame-shaped carrier plate (404).

2. The pipe plug for inspection wells according to claim 1, characterized in that: Two hydraulic cylinders (402) are provided and are located on opposite sides of the processing box (1).

3. A pipe plug for a manhole according to claim 2, characterized in that: The support arm (403) and the hydraulic cylinder (402) are arranged in a one-to-one correspondence.

4. A pipe plug for a manhole according to claim 1, wherein: The control valve stem (503) and the drain horizontal pipe (501) are arranged perpendicular to each other.

5. A pipe plug for a manhole according to claim 1, wherein: The drainage horizontal pipe (501) and the water inlet pipe (2) are arranged parallel to each other.

6. A pipe plug for inspection wells according to claim 5, characterized in that: The frame-shaped baffle (401), frame-shaped carrier plate (404), frame-shaped sealing strip (405), and control valve stem (503) are all located on the same vertical central axis.

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