Pipeline port opening and closing device at rainwater and sewage confluence position

Abstract

The utility model discloses a pipeline port opening and closing device at a rainwater and sewage confluence position, which is correspondingly arranged at a port of each drainage pipeline in a catch basin and comprises vertical opening and closing tracks arranged on two sides of the drainage pipelines, and a port opening and closing plate is assembled between the two vertical opening and closing tracks in a limiting manner. An opening and closing plate traction device is connected between the top end of the port opening and closing plate and the well wall of the intercepting well, an opening and closing plate auxiliary fixing device is further installed on the side, away from the drainage pipeline, of the port opening and closing plate, and an opening and closing plate limiting gap is formed between the opening and closing plate auxiliary fixing device and the port of the drainage pipeline; the end opening and closing plate can be pulled upwards through the opening and closing plate traction device at the well mouth of the intercepting well, so that the end opening of the drainage pipeline is opened and kept; when the end opening of the drainage pipeline needs to be closed, the end opening and closing plate is lowered through the opening and closing plate traction device till the bottom end of the end opening and closing plate makes contact with the bottom wall of the intercepting well, so that well descending operation is not needed, repeated opening and closing operation can be conducted on the end opening of the drainage pipeline, and operation is easy, convenient and fast.

Description

Technical Field

[0001] This utility model relates to the technical field of underground pipeline supporting facilities for combined sewer systems, and in particular to a pipe port opening and closing device for combined sewer systems. Background Technology

[0002] Rainwater and sewage separation, as an important urban infrastructure, aims to separate rainwater and sewage for separate treatment and discharge, thereby improving sewage treatment efficiency and the living environment of residents. This facility not only enhances the city's drainage capacity and effectively alleviates urban flooding, but also prevents sewage treatment plants from operating beyond their capacity and reducing treatment efficiency due to rainwater mixing with sewage. However, during heavy rains, to ensure public safety, the sewage treatment system can still divert rainwater to increase drainage volume and speed. In recent years, with the advancement of synergistic effects between sewage treatment and pollution reduction and carbon reduction, rainwater and sewage separation projects have been regarded as an important public welfare project to improve sewage treatment efficiency and rapidly improve the living environment of residents, especially in southern my country where they have been implemented systematically and achieved significant results.

[0003] The stormwater and sewage separation project is based on the existing combined sewer system in the city. The confluence is sealed off to intercept the flow, and the return flow can be opened during the flood season to assist drainage and ensure urban safety. Currently, the sealing process still uses traditional brick-built walls, but this creates difficulties for later pipe dredging and maintenance, mainly in the following ways:

[0004] First, the demolition of brick-built sealing walls is cumbersome, and CCTV inspection (pipeline inspection) is generally required during pipeline maintenance. Brick-built sealing walls will hinder the movement of pipeline inspection robots, resulting in incomplete inspections and unclear understanding of pipeline damage, thereby affecting the quality of pipeline maintenance and its safe and stable use.

[0005] Second, the brick sealing wall is difficult to build. Construction workers need to enter the pipe to build it, and a large number of bricks, mortar and other materials need to be supplied. The working space is small, and the sewage remaining in the pipe will affect the adhesion of the mortar and affect the firmness of the brick sealing wall.

[0006] Third, the construction of brick-built sealing walls is risky. The working space inside sewage pipes is limited, and they contain certain harmful gases. Prolonged construction work will affect the safety of construction workers.

[0007] In response to the above problems, sandbags were later used instead of brick walls to seal the pipes. However, the following problems were found in actual use:

[0008] 1. Sandbag sealing is ineffective and fails to meet sealing requirements;

[0009] Second, after prolonged use of sandbags for sealing, the sandbags are prone to breakage, causing sand to leak out and thus block the sewage pipes.

[0010] Third, sandbags are used in large quantities and are heavy, and need to be moved up and down the manhole during the sealing and dredging process, which is inconvenient to transport.

[0011] Therefore, it is necessary to improve the blocking and interception technology for combined stormwater and sewage to solve the above problems. Utility Model Content

[0012] The technical problem to be solved by this utility model is to provide a pipe port opening and closing device for combined sewer overflows that is easy to use, can be repeatedly operated, and is simple and convenient to operate.

[0013] To solve the above-mentioned technical problems, the technical solution of this utility model is: a pipe port opening and closing device for combined sewer overflows, correspondingly installed at the ports of each drainage pipe in the intercepting well, including vertical opening and closing rails arranged opposite to each other on both sides of the drainage pipe, a port opening and closing plate slidably limited and fitted between the two vertical opening and closing rails, an opening and closing plate pulling device connected between the top of the port opening and closing plate and the well wall of the intercepting well, and an opening and closing plate auxiliary fixing device installed on the side of the port opening and closing plate away from the drainage pipe, forming an opening and closing plate limiting gap between the opening and closing plate auxiliary fixing device and the port of the drainage pipe to facilitate the port opening and closing plate to descend and abut against the bottom wall of the intercepting well, and the opening and closing plate auxiliary fixing device is fixed to the bottom wall of the intercepting well.

[0014] As a preferred technical solution, the opening and closing plate pulling device includes a pulling ear plate fixedly installed on the top of the port opening and closing plate, a pulling hook is provided on the inner wall of the intercepting well above the vertical opening and closing track, and a pulling chain is provided between the pulling ear plate and the pulling hook.

[0015] As a preferred technical solution, the vertical opening and closing track includes a track body arranged parallel to the inner wall of the intercepting well, and the upper end of the track body extends to the top of the drainage pipe. An installation support arm is arranged and connected from top to bottom on the track body, and the other end of the installation support arm is connected to an installation wall plate. The installation wall plate is fixed to the inner wall of the intercepting well by installation bolts.

[0016] As a preferred technical solution, the auxiliary fixing device for the opening and closing plate includes an auxiliary fixing angle plate located on the outside of the drainage pipe port, and the auxiliary fixing angle plate is fixed to the bottom wall of the intercepting well by anchor bolts.

[0017] As a preferred technical solution, at least the lower half of the port opening / closing plate is rectangular.

[0018] As a preferred technical solution, a sealing rubber ring is fixed on the side of the port opening and closing plate facing the drainage pipe. When the port opening and closing plate closes the drainage pipe port, the sealing rubber ring is attached to the inner wall of the drainage pipe port.

[0019] As an improvement to the above technical solution, the surface of the port opening and closing plate is coated with an anti-corrosion coating.

[0020] Due to the adoption of the above technical solution, the opening and closing device for the combined sewer overflow pipe port is correspondingly installed at the port of each drainage pipe in the intercepting well. It includes vertical opening and closing rails arranged opposite each other on both sides of the drainage pipe. A port opening and closing plate is slidably limited between the two vertical opening and closing rails. A pulling device for the opening and closing plate is connected between the top of the port opening and closing plate and the wall of the intercepting well. An auxiliary fixing device for the opening and closing plate is also installed on the side of the port opening and closing plate away from the drainage pipe. A gap is formed between the auxiliary fixing device and the port of the drainage pipe to facilitate the downward movement of the port opening and closing plate and its contact with the opening and closing plate limiter on the bottom wall of the intercepting well. The auxiliary fixing device for the opening and closing plate is fixed to the bottom wall of the intercepting well. This invention has the following advantages: the opening and closing plate can be pulled upwards at the wellhead of the intercepting well using the opening and closing plate pulling device to open and maintain the port of the drainage pipe; when it is necessary to close the port of the drainage pipe, the opening and closing plate can be lowered using the opening and closing plate pulling device until the bottom end of the opening and closing plate contacts the bottom wall of the intercepting well, thus eliminating the need for downhole operation. The auxiliary fixing device for the opening and closing plate can assist the opening and closing plate in resisting the impact of water in the drainage pipe, making its closure of the drainage pipe port more stable and reliable. Furthermore, the opening and closing operation of the drainage pipe port can be repeated, making the operation simple and convenient. Attached Figure Description

[0021] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0022] Figure 1 This is a schematic diagram of the state of the drainage pipe inside the intercepting well according to an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the closed state of the port opening and closing plate of the present utility model on the drainage pipe port;

[0024] Figure 3 This is a schematic diagram of the opening and closing state of the port opening and closing plate of the present utility model for the drainage pipe port;

[0025] Figure 4 This is a schematic diagram of the usage state of an embodiment of this utility model;

[0026] In the diagram: 1-Interception well; 2-Concrete block; 3-Port opening and closing plate; 4-Sealing rubber ring; 5-Rail body; 6-Installation support arm; 7-Installation wall panel; 8-Pull-up ear plate; 9-Pull-up hook; 10-Pull-up chain; 11-Opening and closing plate limiting gap; 12-Auxiliary fixing angle plate; 13-Drainage pipe. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0028] like Figure 1 and Figure 4 As shown, an intercepting well 1 is provided at the stormwater and sewage confluence point. The ports of drainage pipes 13 used to transport stormwater and sewage are all located within the intercepting well 1. Concrete blocks 2 are installed along the drainage pipes 13 and on both sides of their ports within the intercepting well 1, for limiting and fixing the drainage pipes 13. That is, at least two ports of the drainage pipes 13 are provided within the intercepting well 1. The opening and closing devices for the pipe ports at the stormwater and sewage confluence point are correspondingly installed to each port of the drainage pipes 13, used to open and close the corresponding ports of the drainage pipes 13, thereby achieving the control of the confluence and interception of the drainage pipes 13. When there is no rain or no large amount of rainwater discharge, the ports of each of the drainage pipes 13 are closed to achieve the separation of rainwater and sewage discharge, so as to prevent rainwater from entering the sewage treatment system and increasing the sewage treatment capacity; when there is heavy rainfall, the ports of each of the drainage pipes 13 are opened, so that rainwater can be discharged by itself and also discharged through the sewage system, so as to achieve rapid discharge of precipitation and ensure the safety of people's livelihood in the city.

[0029] like Figure 2 and Figure 3 As shown, the opening and closing device for the combined sewer overflow pipe includes vertical opening and closing rails arranged opposite to each other on both sides of the drainage pipe 13. A port opening and closing plate 3 is slidably limited between the two vertical opening and closing rails. That is, the port opening and closing plate 3 can be raised and lowered along the vertical opening and closing rails to control the opening and closing of the port of the drainage pipe 13. Furthermore, by setting the lifting height of the port opening and closing plate 3, the opening size of the port of the drainage pipe 13 can also be controlled to adapt to different discharge volumes of rainwater.

[0030] In this embodiment, at least the lower half of the port opening / closing plate 3 is rectangular, while the upper half is semi-circular. The rectangular design of the lower part of the port opening / closing plate 3 allows its lower end to completely abut against the bottom wall of the intercepting well 1, thereby simultaneously sealing the gap between the drainage pipe 13 and the concrete blocks 2 on both sides, preventing the accumulation of garbage and other foreign objects carried by rainwater. The semi-circular design of the upper part of the port opening / closing plate 3 reduces the material used, thus reducing its weight and facilitating lifting operations.

[0031] To ensure the strength of the port opening / closing plate 3 and its ability to withstand water impact over extended periods, the port opening / closing plate 3 is made of metal. Therefore, an anti-corrosion coating is applied to the surface of the port opening / closing plate 3 to prevent rapid corrosion by rainwater or sewage, thereby extending its service life. A sealing rubber ring 4 is also fixed to the side of the port opening / closing plate 3 facing the drainage pipe 13. When the port opening / closing plate 3 closes the port of the drainage pipe 13, the sealing rubber ring 4 adheres to the inner wall of the port of the drainage pipe 13 to prevent excessive water overflow and avoid water flow that could allow rainwater to enter the sewage and create a flow. This embodiment effectively cuts off the combined flow of rainwater and sewage, preventing flow between the two, without requiring an absolute seal of the port opening / closing plate 3 at the port of the drainage pipe 13. Therefore, the sealing rubber ring 4 fully meets the usage requirements. Furthermore, the sealing rubber ring 4 has good deformation characteristics, thus avoiding obstruction to the raising and lowering of the port opening / closing plate 3, ensuring that the port opening / closing plate 3 can adjust the opening and closing of the port of the drainage pipe 13.

[0032] The vertical opening and closing track includes a track body 5 arranged parallel to the inner wall of the intercepting well 1, with the upper end of the track body 5 extending above the drainage pipe 13. This allows the port opening and closing plate 3 to rise above the port of the drainage pipe 13, fully opening the port and maximizing rainwater drainage. Mounting arms 6 are connected from top to bottom on the track body 5, and the other end of the mounting arms 6 is connected to a mounting wall plate 7. The mounting wall plate 7 is fixed to the inner wall of the intercepting well 1 by mounting bolts. Through the cooperation of the mounting arms 6 and the mounting wall plate 7, the track body 5 is installed and fixed inside the intercepting well 1, providing firm support and guiding the lifting and lowering of the port opening and closing plate 3.

[0033] A traction device is connected between the top of the port opening / closing plate 3 and the well wall of the intercepting well 1. This traction device can lift the port opening / closing plate 3 upwards, releasing it from the blockage of the drainage pipe 13 port and allowing rainwater to be discharged. Specifically, the traction device includes a traction lug 8 fixedly installed on the top of the port opening / closing plate 3, a traction hook 9 located on the inner wall of the intercepting well 1 above the vertical opening / closing track, and a traction chain 10 between the traction lug 8 and the traction hook 9. When the port opening / closing plate 3 is in a closed state relative to the port of the drainage pipe 13, the end of the pulling chain 10 can be hooked onto the pulling hook 9. To open the port of the drainage pipe 13 by raising the port opening / closing plate 3, simply pull the pulling chain 10 upwards. The port opening / closing plate 3 will rise to a suitable position. Then, hook the appropriate position of the pulling chain 10 onto the pulling hook 9 to maintain the raising of the port opening / closing plate 3. After use, the pulling chain... Chain 10 detaches from the pull hook 9, leaving only its end hooked to the pull hook 9. Under its own weight, the port opening / closing plate 3 will fall along the track body 5 to its bottom, contacting the bottom wall of the intercepting well 1. To avoid impact from the free fall of the port opening / closing plate 3, it can be slowly lowered by pulling the pull chain 10. If the port opening / closing plate 3 does not fall smoothly enough, its top can be pressed down with a rod or similar object to assist its descent. Therefore, this embodiment allows for the raising and lowering of the port opening / closing plate 3 at the port of the intercepting well 1 without needing to descend into the well, making it convenient and labor-saving. Furthermore, the port opening / closing plate 3 can be repeatedly raised and lowered, resulting in a long service life.

[0034] In this embodiment, an auxiliary fixing device for the opening and closing plate is also installed on the side of the port opening and closing plate 3 away from the drainage pipe 13. A limiting gap 11 is formed between the auxiliary fixing device and the port of the drainage pipe 13 to facilitate the downward movement of the port opening and closing plate 3 and its contact with the bottom wall of the intercepting well 1. The auxiliary fixing device is fixed to the bottom wall of the intercepting well 1. The auxiliary fixing device limits the bottom end of the port opening and closing plate 3 to help it resist the impact of water in the drainage pipe 13, making its closure of the port of the drainage pipe 13 more stable and reliable.

[0035] Specifically, the auxiliary fixing device for the opening and closing plate includes an auxiliary fixing angle plate 12 located on the outside of the drain pipe 13 port, and the auxiliary fixing angle plate 12 is fixed to the bottom wall of the intercepting well 1 by anchor bolts. It is easy to obtain materials, has a simple structure, and is easy to arrange and install.

[0036] The description of this utility model is given for illustrative and descriptive purposes only, and is not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A device for opening and closing the ports of combined sewer overflows, corresponding to the ports of each drainage pipe within the intercepting well, characterized in that: The system includes vertical opening and closing rails arranged opposite each other on both sides of the drainage pipe. A port opening and closing plate is slidably limited between the two vertical opening and closing rails. A port opening and closing plate pulling device is connected between the top of the port opening and closing plate and the well wall of the intercepting well. An auxiliary fixing device for the opening and closing plate is also installed on the side of the port opening and closing plate away from the drainage pipe. A gap is formed between the auxiliary fixing device for the opening and closing plate and the port of the drainage pipe to facilitate the port opening and closing plate to move down and abut against the bottom wall of the intercepting well. The auxiliary fixing device for the opening and closing plate is fixed to the bottom wall of the intercepting well.

2. The opening and closing device for the combined sewer drain pipe as described in claim 1, characterized in that: The opening and closing plate pulling device includes a pulling ear plate fixedly installed on the top of the port opening and closing plate, and a pulling hook is provided on the inner wall of the intercepting well above the vertical opening and closing track. A pulling chain is provided between the pulling ear plate and the pulling hook.

3. The opening and closing device for the combined sewer drain pipe as described in claim 1, characterized in that: The vertical opening and closing track includes a track body arranged parallel to the inner wall of the intercepting well, and the upper end of the track body extends to the top of the drainage pipe. An installation support arm is arranged and connected from top to bottom on the track body, and the other end of the installation support arm is connected to an installation wall plate. The installation wall plate is fixed to the inner wall of the intercepting well by installation bolts.

4. The opening and closing device for the combined sewer drain pipe as described in claim 1, characterized in that: The auxiliary fixing device for the opening and closing plate includes an auxiliary fixing angle plate located on the outside of the drainage pipe port, and the auxiliary fixing angle plate is fixed to the bottom wall of the intercepting well by anchor bolts.

5. The opening and closing device for the combined sewer overflow pipe port as described in claim 1, characterized in that: At least the lower half of the port opening / closing plate is rectangular.

6. The opening and closing device for the combined sewer overflow pipe port as described in claim 1, characterized in that: A sealing rubber ring is fixed to the side of the port opening and closing plate facing the drainage pipe. When the port opening and closing plate closes the drainage pipe port, the sealing rubber ring is attached to the inner wall of the drainage pipe port.

7. The opening and closing device for the combined sewer drain pipe as described in claim 1, characterized in that: The surface of the port opening / closing plate is coated with an anti-corrosion coating.

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