Flashboard suitable for plugging large sewage pipeline

Abstract

The utility model discloses a flashboard suitable for blocking a large sewage pipeline, and relates to the technical field of pipeline flashboards, in particular to a flashboard suitable for blocking a large sewage pipeline, which is used for blocking a sewage pipeline and comprises a main grating steel frame, an auxiliary grating steel frame and medium injection equipment, during plugging, the flashboard suitable for plugging the large sewage pipeline is fixedly installed in the pipeline, sewage in the pipeline normally flows to penetrate through the flashboard due to the existence of the first drainage ports and the second drainage ports, and after installation personnel leave the pipeline, the flashboard can be used for plugging the large sewage pipeline. A fluid medium is pressurized and conveyed into a medium flow channel of the main grating steel frame through a guide pipe by utilizing medium injection equipment, the fluid medium flows into each air bag, and the filling chamber is fully filled with the air bags after each air bag expands and deforms, so that each first drainage port and each second drainage port are blocked by each air bag, and the purpose of effectively blocking the sewage pipeline is achieved; the overall plugging efficiency is high, and the risk of manual underwater operation is effectively controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline gates, and in particular to the plugging construction of original pipelines after the relocation of large-scale sewage pipelines, and in particular to a gate suitable for plugging large-scale sewage pipelines. Background Art

[0002] During the construction of municipal water conservancy projects, drainage pipes need to be temporarily blocked to block water flow in order to meet the construction needs of downstream drainage pipes and provide a relatively good working environment for construction workers.

[0003] In the published Chinese patent application, the publication number is CN209053200U, and the patent name is: A temporary gate suitable for the plugging construction of large sewage pipes. Although the grid steel frame of the utility model is connected to the baffle under water, that is, the two parts are installed separately, which solves the problem of the gate tilting under the impact of water flow during installation. The use of grid steel frame can reduce the impact of water flow on the steel frame during the hoisting process, ensuring that the steel frame can be installed in a suitable position, and the bottom is cut into an arc that matches the pipeline. The intersection of the steel section and the pipeline is filled with cotton wool to reduce the amount of water seepage, providing a relatively calm working environment for the plugging operation. The utility model has a simple structure and is easy to install. It can quickly temporarily plug the pipeline to be blocked, which is convenient for underwater workers to complete the plugging construction of the pipeline after diving, and reduces the danger of underwater workers. However, large sewage pipelines are mostly in working state, sewage flows inside the sewage pipeline, and the water flow impacts the gate, making it impossible to fix the gate into the pipeline in the early stage. The above-mentioned prior art adopts a grid steel frame to reduce the impact force of water flow on the steel frame during the hoisting process, ensuring that the steel frame can be installed in a suitable position. The prior art requires manual installation of multiple steel baffles on the steel frame one by one, which is inefficient, and the water flow is unstable when installing the baffles, which poses operational risks. Therefore, in order to solve the problems existing in the prior art, this application is specially proposed to solve them. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a gate suitable for plugging large sewage pipes, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a gate suitable for plugging a large sewage pipe, which is used for plugging a sewage pipe, including a main grid steel frame, an auxiliary grid steel frame and a medium injection device, the outer circumference curvature of the main grid steel frame and the auxiliary grid steel frame are the same as the curvature of the internal flow channel of the sewage pipe, and one side wall of the main grid steel frame is fixedly installed with the auxiliary grid steel frame through a plurality of connecting rods; a filling chamber is formed between the main grid steel frame and the auxiliary grid steel frame; a plurality of second drain ports are opened on the auxiliary grid steel frame; a plurality of A first leakage port, a medium flow channel is provided inside the main grid steel frame, a plurality of air bags are fixedly installed on a side wall of the main grid steel frame close to the filling chamber, and the inlet end of each air bag is respectively connected with the medium flow channel, and the medium outlet end of the medium injection device is connected with the medium flow channel of the main grid steel frame through a conduit; the medium injection device pressurizes and transports the fluid medium into the medium flow channel of the main grid steel frame through the conduit, and the fluid medium flows into each air bag, and each air bag expands and deforms and fills the filling chamber, so that each first leakage port and second leakage port are blocked by each air bag.

[0008] Optionally, the main grid steel frame is composed of an injection joint, a first steel ring and multiple support tubes, and the injection joint, the first steel ring and the multiple support tubes are all provided with interconnected medium flow channels, each of the support tubes is arranged in a ring on the inner wall of the first steel ring, and each support tube is fixedly connected to the first steel ring, and the injection joint is fixedly installed on a side wall of the first steel ring away from the filling chamber.

[0009] Optionally, a first drain port is formed between two adjacent support tubes, and the first drain port is connected to the filling chamber; an annular airbag is fixedly mounted on the outer peripheral side wall of the first steel ring, and the inflow end of the annular airbag is connected to the medium flow channel.

[0010] Optionally, the auxiliary grid steel frame is composed of a third steel ring and a plurality of support columns, each support column is arranged in a ring shape on the inner wall of the third steel ring, and each support column is fixedly connected to the third steel ring.

[0011] Optionally, a second drain port is formed between two adjacent support columns, and the second drain port is communicated with the filling chamber.

[0012] Optionally, the airbag is made of one or more mixed materials selected from chloroprene rubber, vinyl acrylate copolymer, silicone, polyvinyl chloride, polyurethane, butylene acrylate, polypropylene, polyvinyl chloride, vinyl butadiene rubber, and fluororubber.

[0013] (III) Beneficial effects

[0014] The utility model provides a gate suitable for blocking large sewage pipes, which has the following beneficial effects:

[0015] The gate plate suitable for blocking large sewage pipes has the effect of blocking sewage pipes through the coordinated arrangement of the main grid steel frame, the auxiliary grid steel frame and the medium injection equipment. During blocking, the gate plate suitable for blocking large sewage pipes shown in the present application is fixedly installed inside the pipe. Due to the existence of each first discharge port and the second discharge port, the sewage inside the pipe flows normally through the gate plate. After the installer leaves the pipe, the medium injection equipment is used to pressurize the fluid medium through the conduit and transport it to the medium flow channel of the main grid steel frame. The fluid medium flows into each air bag. After each air bag expands and deforms, it fills and covers the filling chamber, so that each first discharge port and the second discharge port are blocked by each air bag, thereby achieving the purpose of effectively blocking the sewage pipe. The overall blocking efficiency is high, and the risk of artificial underwater operation is effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a gate suitable for blocking a large sewage pipe according to the utility model;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of a gate main grille steel frame suitable for plugging large sewage pipes according to the utility model;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of a gate auxiliary grille steel frame suitable for plugging large sewage pipes according to the utility model;

[0020] Figure 4 It is a schematic diagram of water flow when a gate plate suitable for blocking a large sewage pipe blocks a sewage pipe according to the utility model (that is, a partial cross-sectional view of a gate plate suitable for blocking a large sewage pipe);

[0021] Figure 5 It is a structural schematic diagram of a gate plate suitable for blocking a large sewage pipe after blocking the sewage pipe according to the utility model (that is, a partial cross-sectional view of a gate plate suitable for blocking a large sewage pipe);

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the sewage pipe and working well.

[0023] In the figure: 1. main grid steel frame; 101. first steel ring; 102. support pipe; 103. connecting rod; 104. first drain port; 105. air bag; 106. second steel ring; 107. annular air bag; 108. injection joint; 109. medium flow channel; 2. auxiliary grid steel frame; 201. third steel ring; 202. support column; 203. fourth steel ring; 204. second drain port; 3. filling chamber; 4. sewage pipe; 5. working well. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it 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 indirectly connected 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. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0026] See also Figures 1 to 6 The utility model provides a technical solution: During the specific implementation of the utility model, a gate plate suitable for plugging a large sewage pipe is installed by construction personnel into the sewage pipe 4 through a working well 5. A gate plate suitable for plugging a large sewage pipe is used for plugging the sewage pipe 4. A gate plate suitable for plugging a large sewage pipe includes a main grid steel frame 1, an auxiliary grid steel frame 2 and a medium injection device. The outer circumference curvature of the main grid steel frame 1 and the auxiliary grid steel frame 2 are the same as the curvature of the internal flow channel of the sewage pipe 4. One side wall of the main grid steel frame 1 is fixedly installed with the auxiliary grid steel frame 2 through a plurality of connecting rods 103. A filling chamber 3 is formed between the main grid steel frame 1 and the auxiliary grid steel frame 2.

[0027] The medium injection device adopts a high pressure water pump or a high pressure air pump. The main grid steel frame 1 and the auxiliary grid steel frame 2 can both adopt one of channel steel or section steel. The filling chamber 3 between the main grid steel frame 1 and the auxiliary grid steel frame 2 is also a cavity.

[0028] A plurality of second drain ports 204 are provided on the auxiliary grid steel frame 2. A plurality of first drain ports 104 are provided on the main grid steel frame 1, a medium flow channel 109 is provided inside the main grid steel frame 1, a plurality of air bags 105 are fixedly installed on a side wall of the main grid steel frame 1 close to the filling chamber 3, and the inflow end of each air bag 105 is respectively connected to the medium flow channel 109, and the medium outflow end of the medium injection device is connected to the medium flow channel 109 of the main grid steel frame 1 through a conduit. The medium injection device pressurizes and delivers the fluid medium to the medium flow channel 109 of the main grid steel frame 1 through the conduit, and the fluid medium flows into each air bag 105, and each air bag 105 expands and deforms to fill the filling chamber 3, so that each first drain port 104 and second drain port 204 are blocked by each air bag 105.

[0029] Among them, each first leakage port 104 and second leakage port 204 are used for leakage, and the sewage in the sewage pipe 4 can continue to flow downstream through each first leakage port 104 and second leakage port 204. Each air bag 105 is used to fill the filling chamber 3 through expansion deformation. After the filling chamber 3 is filled, each first leakage port 104 and second leakage port 204 are blocked, and then the gate is converted from the leakage state to the blocking state, so as to achieve the purpose of blocking the sewage pipe 4. The medium injection device pressurizes the fluid medium through the conduit and transports it to the medium flow channel 109 of the main grid steel frame 1. Then, the fluid medium is diverted through the medium flow channel 109 to each air bag 105. After the fluid medium is injected into the inside of each air bag 105, it expands and deforms. After each air bag 105 expands and deforms, it fills the filling chamber 3, so that each first leakage port 104 and second leakage port 204 connected to the filling chamber 3 are blocked, thereby blocking the water flow. The fluid medium can be water or air. The medium injection device uses a high-pressure water pump or a high-pressure air pump with a pressurizing function, which can apply a certain intensity of pressure to the fluid medium so that the fluid medium can be effectively injected into each airbag 105.

[0030] Specifically, the airbag 105 is made of one or more mixed materials selected from chloroprene rubber, vinyl acrylate copolymer, silicone, polyvinyl chloride, polyurethane, butylene acrylate, polypropylene, polyvinyl chloride, vinyl butadiene rubber, fluororubber, and the like.

[0031] Among them, the airbag 105 is made of the above materials, and the airbag 105 has the characteristics of flexibility, wear resistance, and pressure resistance. After being injected with fluid medium, the airbag 105 can expand and deform, and its volume becomes larger.

[0032] Specifically, the main grid steel frame 1 is composed of a flow joint 108, a first steel ring 101 and a plurality of support pipes 102. The flow joint 108, the first steel ring 101 and the plurality of support pipes 102 are all provided with mutually connected medium flow channels 109. Each support pipe 102 is annularly arranged on the inner side wall of the first steel ring 101, and each support pipe 102 is fixedly connected to the first steel ring 101. The flow joint 108 is fixedly installed on a side wall of the first steel ring 101 away from the filling chamber 3. In order to strengthen the support strength of the gate plate, a second steel ring 106 can be fixedly connected to the middle of each support pipe 102, and the medium flow channel 109 inside the second steel ring 106 is connected to the medium flow channel 109 inside each support pipe 102. The second steel ring 106 strengthens the support strength without affecting the overall effect.

[0033] The injection joint 108 is used to facilitate the installation and connection with the catheter. After the catheter is installed and connected with the injection joint 108, the catheter is connected with the first steel ring 101 through the injection joint 108. The medium injection device pressurizes the fluid medium through the catheter and delivers it to the medium flow channel 109 of the injection joint 108. Then, the fluid medium flows through the injection joint 108, the first steel ring 101, and each support tube 102 in sequence and then flows into each airbag 105. After the fluid medium is injected into each airbag 105, it expands and deforms. After the expansion and deformation, each airbag 105 fills the filling chamber 3, so that each first drain port 104 and the second drain port 204 connected to the filling chamber 3 are blocked, thereby blocking the water flow.

[0034] More specifically, a first drain port 104 is formed between two adjacent support tubes 102 and communicates with the filling chamber 3. An annular airbag 107 is fixedly mounted on the outer peripheral side wall of the first steel ring 101, and the inflow end of the annular airbag 107 communicates with the medium flow channel 109.

[0035] Among them, the medium injection equipment pressurizes the fluid medium through the catheter and transports it to the medium flow channel 109 of the injection joint 108, and then the fluid medium flows through the injection joint 108 into the first steel ring 101, and then the fluid medium flows into the annular airbag 107. The annular airbag 107 expands and deforms to cover the gap between the first steel ring 101 and the inner wall of the sewage pipe 4, sealing the gap between the first steel ring 101 and the inner wall of the sewage pipe 4 to prevent small streams of water from flowing around the gate.

[0036] Specifically, the auxiliary grid steel frame 2 is composed of a third steel ring 201 and a plurality of support columns 202, each support column 202 is annularly arranged on the inner side wall of the third steel ring 201, and each support column 202 is fixedly connected to the third steel ring 201. A fourth steel ring 203 is fixedly connected to the middle of each support column 202. A second drain port 204 is formed between two adjacent support columns 202, and the second drain port 204 is connected to the filling chamber 3.

[0037] The third steel ring 201 and the fourth steel ring 203 are used to support and fix each support column 202 .

[0038] The gate plate suitable for plugging a large sewage pipe shown in the present application also includes other parts and electrical components when implemented in actual use to meet the need for plugging a large sewage pipe 4.

[0039] When in use, first, the construction personnel fix the main grid steel frame 1 and the auxiliary grid steel frame 2 together so that the two form a gate body.

[0040] Second, the construction personnel fix the gate body composed of the main grid steel frame 1 and the auxiliary grid steel frame 2 to the inner wall of the sewage pipe 4 through the working well 5, and use external equipment or parts to firmly install the gate body to the inner wall of the sewage pipe 4. At this time, the sewage inside the sewage pipe 4 is still in a flowing state, and the sewage flows through each first discharge port 104, the filling chamber 3, and the second discharge port 204 in sequence.

[0041] 3. The construction personnel return to the ground, and fix the outflow end of the conduit to the injection joint 108 to connect the two; and connect the outflow end of the medium injection device to the inflow end of the conduit.

[0042] 4. Start the medium injection device. The medium injection device pressurizes the fluid medium (air or water) through the conduit and delivers it to the medium flow channel 109 of the injection joint 108. Then, the fluid medium flows through the injection joint 108, the first steel ring 101, and each support tube 102 in sequence and flows into each air bag 105. After the fluid medium is injected into each air bag 105, it expands and deforms. After the expansion and deformation, each air bag 105 fills the filling chamber 3, so that each first drain port 104 and the second drain port 204 connected to the filling chamber 3 are blocked, thereby blocking the water flow.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A gate suitable for plugging a large sewage pipe, which is used for plugging a sewage pipe (4), characterized by: It comprises a main grid steel frame (1), an auxiliary grid steel frame (2) and a medium injection device, wherein the outer circumference curvature of the main grid steel frame (1) and the auxiliary grid steel frame (2) are the same as the curvature of the internal flow channel of the sewage pipe (4), and a side wall of the main grid steel frame (1) is fixedly mounted with the auxiliary grid steel frame (2) via a plurality of connecting rods (103); a filling chamber (3) is formed between the main grid steel frame (1) and the auxiliary grid steel frame (2); The auxiliary grid steel frame (2) is provided with a plurality of second flow discharge ports (204); The main grid steel frame (1) is provided with a plurality of first drain ports (104), the main grid steel frame (1) is provided with a medium flow channel (109) inside, a plurality of air bags (105) are fixedly mounted on a side wall of the main grid steel frame (1) close to the filling chamber (3), and the inflow end of each air bag (105) is respectively connected to the medium flow channel (109), and the medium outflow end of the medium injection device is connected to the medium flow channel (109) of the main grid steel frame (1) via a conduit; The medium injection device pressurizes and delivers the fluid medium to the medium flow channel (109) of the main grid steel frame (1) through a conduit, and the fluid medium flows into each air bag (105). After each air bag (105) expands and deforms, it fills the filling chamber (3), so that each first leakage port (104) and second leakage port (204) are blocked by each air bag (105).

2. A gate suitable for blocking a large sewage pipe according to claim 1, characterized in that: The main grid steel frame (1) is composed of an injection joint (108), a first steel ring (101) and a plurality of support tubes (102); the injection joint (108), the first steel ring (101) and the plurality of support tubes (102) are each provided with a medium flow channel (109) interconnected with each other; each of the support tubes (102) is arranged in an annular manner on the inner side wall of the first steel ring (101); each of the support tubes (102) is fixedly connected to the first steel ring (101); and the injection joint (108) is fixedly mounted on a side wall of the first steel ring (101) away from the filling chamber (3).

3. A gate suitable for blocking a large sewage pipe according to claim 2, characterized in that: A first drain port (104) is formed between two adjacent support tubes (102), and the first drain port (104) is in communication with the filling chamber (3); an annular airbag (107) is fixedly mounted on the outer peripheral side wall of the first steel ring (101), and the inflow end of the annular airbag (107) is in communication with the medium flow channel (109).

4. A gate suitable for blocking a large sewage pipe according to claim 1, characterized in that: The auxiliary grid steel frame (2) is composed of a third steel ring (201) and a plurality of support columns (202), each support column (202) being arranged in an annular manner on the inner side wall of the third steel ring (201), and each support column (202) is fixedly connected to the third steel ring (201).

5. A gate suitable for blocking a large sewage pipe according to claim 4, characterized in that: A second drain port (204) is formed between two adjacent support columns (202), and the second drain port (204) is in communication with the filling chamber (3).

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