WO2021121033A1

WO2021121033A1 - Simple flow blocking device and method for using same, and pipe provided with device

Info

Publication number: WO2021121033A1
Application number: PCT/CN2020/133241
Authority: WO
Inventors: 周超
Original assignee: 武汉圣禹排水系统有限公司
Priority date: 2019-12-18
Filing date: 2020-12-02
Publication date: 2021-06-24
Also published as: CN111075947A

Abstract

A simple flow blocking device and a method for using same, and a pipe provided with the simple flow blocking device. The simple flow blocking device comprises a rubber sleeve (1); the rubber sleeve is provided with a through flowing channel (10); a lower pressure charging cavity (111) is provided in the rubber sleeve; the rubber sleeve at the position of the lower pressure charging cavity is a double-layer structure comprising an outer rubber layer (12) and an inner rubber layer (13); the cross-section of the rubber sleeve at the position of the lower pressure charging cavity is arc-shaped, and the rubber sleeve is of an integral structure; an inlet/outlet hole (14) is provided on the outer rubber layer, and the inlet/outlet hole is in communication with the lower pressure charging cavity. A rubber sleeve structure is used, a pressure charging cavity (11) is provided in the rubber sleeve, and the entire rubber sleeve is of an integral structure; compared with the prior art, there is no problem of sealing of the pressure charging cavity, the structure is simpler, and the mounting and use are convenient.

Description

Simple shut-off device, its use method, and pipeline for installing the device

Cross-references to related applications

This application claims the priority of the Chinese patent application filed on December 18, 2019, the application number is 201911311312.3 and the title is "simple shut-off device and its use method, pipeline for installing the device", the entire content of which is incorporated herein by reference .

Technical field

The present disclosure relates to the technical field of drainage equipment, in particular to a simple interception device and its use method, and a pipeline for installing the device.

Background technique

The flexible shut-off device is a shut-off device used in the water outlet or the outlet of a diversion well. Its structure generally includes an outer casing and a rubber sleeve. A pressure-filled cavity is formed between the outer casing and the rubber sleeve. The end of the rubber sleeve And the end of the outer shell is sealed and connected by a flange. When the pressurized cavity is filled with pressurized gas, the rubber sleeve is relatively deformed inwardly, the inner wall of the rubber sleeve is attached, and the flow channel is blocked. However, when the diameter of the drainage pipe or the outlet of the diversion well is large (for example, the diameter of the pipe is DN400 or more), the diameter of the rubber sleeve cannot meet the demand for large deformation. At this time, the end of the rubber sleeve The deformation is large at the end of the outer casing, the end of the rubber sleeve is easy to slip out between the flange and the end of the outer casing, and the sealing of the charging cavity is not good. In addition, the interception device in the prior art only has the function of opening or closing. When flow control and anti-inflow are required, the interception device in the prior art cannot be used when the interception device does not need to be completely closed. Therefore, it is urgently needed. A flexible shut-off device that can solve the sealing problem and has a wide range of applications.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology, and provide a simple shut-off device and its use method, and a pipeline for installing the device, which has the advantages of good sealing effect and simple structure.

In one aspect, the present invention provides a simple shut-off device, including a rubber sleeve, the rubber sleeve is provided with a through flow channel, the rubber sleeve is provided with a lower charging cavity, and the position of the lower charging cavity is The rubber sleeve at the position has a double-layer structure, respectively, an outer rubber layer and an inner rubber layer. The cross-sectional shape of the rubber sleeve at the position of the lower charging cavity is arc-shaped, and the rubber sleeve has an integral structure The outer rubber layer is provided with inlet and outlet holes, and the inlet and outlet holes are in communication with the lower charging cavity.

Optionally, an upper charging cavity is also provided, and the rubber sleeve on the side of the upper charging cavity is also of a double-layer structure, which is an outer rubber layer and an inner rubber layer, respectively. The cross-sectional shape of the rubber sleeve is an arc, the outer rubber layer on the side of the upper charging cavity is provided with inlet and outlet holes communicating with the upper charging cavity, and the rubber sleeve is of an integrated structure; The charging cavity is located in the upper half of the rubber sleeve, and the lower charging cavity is located in the lower half of the rubber sleeve.

Optionally, it further includes an outer casing, the outer casing is sleeved outside the rubber sleeve, and the end of the outer casing is connected to the end of the rubber sleeve.

Optionally, the end of the rubber sleeve is provided with a convex edge that extends outward, the outer shell includes a cylinder and a flange connection part, and the edge and the end of the cylinder pass through the method. The blue connection part is fixed.

In yet another aspect, the present invention also provides a method for using a shutoff device, the method includes installing the above-mentioned simple shutoff device in a pipeline, and the lower charging chamber is located in the lower half of the pipeline in the installed state. In part, the device includes a cut-off state and a cut-off state. The following cut-off state or cut-off state can be selected according to the needs of use: from the inlet and outlet holes of the lower pressure chamber to the lower pressure chamber of the adjustable flexible closure device, a certain pressure of medium is filled, The rubber sleeve on the side of the lower charging chamber is deformed upward to have a certain interception height, and the flow channel is in a closed state; the lower charging chamber of the adjustable flexible shut-off device is continuously filled with a certain pressure from the inlet and outlet holes of the lower charging chamber The inner rubber layer of the lower charging chamber is attached to the inner wall of the upper part of the rubber sleeve, and the circulation channel is in a cut-off state.

In yet another aspect, the present invention also provides a method for using a shutoff device, the method includes installing the above-mentioned simple shutoff device in a pipeline, and the lower charging chamber is located in the lower half of the pipeline in the installed state. In part, the device includes a cut-off state and a cut-off state. The following cut-off state or cut-off state can be selected according to the needs of use: fill a certain pressure medium from the inlet and outlet holes of the lower pressure chamber to the lower pressure chamber of the simple closure device. The rubber sleeve on the side of the charging cavity is deformed upward to have a certain interception height, and the flow channel is in the interception state; from the inlet and outlet holes of the upper and lower charging chambers to the upper and lower charging chambers of the simple shut-off device, respectively The cavity is continuously filled with a medium with a certain pressure, the inner rubber layer of the lower pressure-filled chamber is attached to the inner rubber layer of the upper pressure-filled chamber, and the circulation channel is in a cut-off state.

In another aspect, the present invention also provides a pipeline equipped with a simple interception device, including: the above-mentioned simple interception device, the simple interception device includes a rubber sleeve; a gland, the rubber sleeve One end is provided with an outward convex edge, the other end of the rubber sleeve is installed in the pipeline, and the outer wall of the rubber sleeve is attached to the inner wall of the pipeline, and the raised edge is attached and fixed to the pipe by the gland Around the pipe port.

Optionally, the pipeline equipped with a simple shutoff device is further provided with a control system, and the control system includes: a monitoring device for monitoring signals of the environment in which the rubber sleeve is used to obtain a monitoring signal; a pressure source station, The pressure source is respectively connected with the rubber sleeve through a conveying pipeline, and is used to control the charging or discharging of the rubber sleeve; the controller, the monitoring device and the pressure station are respectively connected to the controller in signal The controller controls the action of the pressure station according to the monitoring signal of the monitoring device, and controls the flow channel of the rubber sleeve to be turned on, cut off, or cut off.

Optionally, the monitoring device is one or more of a device for monitoring liquid level, a device for monitoring rainfall, a device for monitoring water quality, and a device for monitoring time; correspondingly, the monitoring signal is a liquid level signal, rainfall One or more of signal, water quality signal, and time signal.

Compared with the prior art, the advantages of the present invention are as follows:

(1) A simple shut-off device of the present invention can only adopt a rubber sleeve structure, and a pressure cavity is provided in the rubber sleeve. The entire rubber sleeve is an integrated structure. Compared with the prior art, there is no pressure cavity. The problem of sealing, the structure is simpler, and the installation and use are convenient.

(2) The rubber sleeve of a simple shut-off device of the present invention is provided with an independent pressure chamber or two independent pressure chambers. In addition to the traditional function of closing the circulation channel, the rubber sleeve also has a shut-off function. Only the lower pressure chamber is filled, and the inner rubber layer of the lower pressure chamber rises upward. The lower half of the rubber sleeve after inflation and deformation is equivalent to a height-adjustable weir. When the water level rises above the interception height At the same time, the water can overflow from above and can prevent the water from downstream from overflowing. This can intercept the mud at the bottom of the pipeline or the mud in the diversion well, and prevent the mud at the bottom from entering the natural water body with rainwater and causing pollution to the natural water body. In addition, it can be used at the drain outlet to adjust the interception height of the lower half of the rubber sleeve according to the natural water level to prevent the natural water body from backfilling. While preventing backfilling, overflow from the top of the lower half of the rubber sleeve does not affect the flood discharge. .

Description of the drawings

Fig. 1 is a schematic diagram of Example 1 in a use state.

Fig. 2 is a cross-sectional view taken along the line A-A in Fig. 1.

Fig. 3 is a schematic diagram of Embodiment 2 in a cut-off state.

Fig. 4 is a B-B cross-sectional view of Fig. 3.

Figure 5 is a schematic diagram of Embodiment 2 in an open state.

Fig. 6 is a cross-sectional view taken along line C-C in Fig. 5.

Figure 7 is a schematic diagram of the structure of the shutoff device in the installed state.

Reference signs: 1-rubber sleeve, 10-circulation channel, 11-charging cavity, 110-upper charging cavity, 111-lower charging cavity, 12-outer rubber layer, 13-inner rubber layer, 14 -Access hole, 2-outer shell, 4-gland.

Detailed ways

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

Example 1

Referring to Figures 1 to 2, the present invention provides a simple shut-off device, including a rubber sleeve 1, the rubber sleeve 1 is provided with a through flow channel 10, the rubber sleeve 1 is provided with an independent pressure chamber 11 for the lower part In this embodiment, the rubber sleeve 1 is cylindrical, and the cross-sectional shape of the rubber sleeve 1 is circular, so the cross-sectional shape of the lower charging chamber 111 is arc, and the rubber of the cross-section of the lower charging chamber 111 is The arc length of the sleeve 1 is smaller than the circumference of the rubber sleeve 1 of the cross section. The rubber sleeve 1 at the position of the lower charging cavity 111 has an outer rubber layer 12 and an inner rubber layer 13, and the lower charging cavity 111 is located Between the outer rubber layer 12 and the inner rubber layer 13, and the outer rubber layer 12, the inner rubber layer 13, and the rubber sleeve 1 outside the lower pressure chamber 111 are in an integrated structure; the outer layer of the lower pressure chamber 111 The rubber layer 12 is provided with inlet and outlet holes 14, which are in communication with the lower charging cavity 111. The inlet and outlet holes 14 can be two holes provided on the outer rubber layer 12, or two holes provided on the outer layer. A hole in the rubber layer 12 is provided with an inlet pipe and an outlet pipe on the conveying pipe connected to the hole. In this embodiment, the rubber structure forming the lower charging chamber 111 is an integral structure with rubber structures at other positions. Since the rubber sleeve 1 does not form the charging chamber 11 with other components, there is no need to provide a sealing structure for sealing and charging. The cavity 11 prevents leakage of the charging cavity 11, has a simple structure, is easy to install, and has a wide range of applications.

As shown in Fig. 7, this embodiment also provides a pipeline installed with a simple interception device, including:

The above-mentioned simple interception device, the rubber sleeve of the simple interception device is installed in the pipeline;

Gland 4, one end of the rubber sleeve 1 is provided with a convex edge outwards, the other end of the rubber sleeve 1 is inserted into the pipe from the port of the pipe, and the outer wall of the rubber sleeve 1 is attached to the inner wall of the pipe. The protruding edge is fixed to the periphery of the pipe port through the pressing cover 4. The gland 4 in this embodiment may be a flange, and the raised edge matches the flange, and the flange and the raised edge are fixed around the pipe port by means of expansion bolts. The installation structure is simple, which is convenient for the installation and maintenance of the interception device.

Further, it also includes a setting control system, and the control system includes:

Pressure source. The pressure source includes a pressure station, a conveying pipeline and a control valve. The pressure station can be a gas station, a water station or an oil station. The conveying pipeline connects the lower charging chamber 111 and the pressure source, and the conveying pipeline is provided with a control valve. , The control valve is used to control the charging and discharging of the lower charging chamber 111;

The monitoring device is used to monitor the signal of the environment in which the rubber sleeve is used to obtain the monitoring signal. The monitoring device in this embodiment is a device that monitors liquid level, such as a level gauge, a device that monitors rainfall, such as a rain gauge, and a device that monitors water quality, such as COD. One or more of water quality monitors and time monitoring devices such as timers; correspondingly, the monitoring signals are one or more of liquid level signals, rainfall signals, water quality signals, and time signals;

The controller, the monitoring device and the control valve are respectively connected to the controller with signals, and the controller is used to control the action of the control valve according to the monitoring signal of the monitoring device to control the charging or discharging of the lower charging chamber 111. Specifically, the action of the charging chamber 111 is controlled according to the use requirements, such as the diversion requirement, the overflow requirement, and the anti-inflow requirement. The use requirements not specified in this embodiment are the same as the use requirements of the prior art, and the control logic is also It is the same as the prior art, except that the action of controlling the gate or weir gate or the valve in the prior art is correspondingly replaced with the action of controlling the simple shut-off device. The control system of this embodiment has simple structure, convenient control, high degree of automation, and wide application range.

Preferably, this embodiment also provides a method for using the interception device, as follows:

Install the above-mentioned simple shut-off device in the pipeline. In the installed state, the charging chamber 111 is located in the lower half of the pipeline. The device includes a shut-off state and a cut-off state. The following shut-off state or cut-off state can be selected according to the needs of use:

Fill the lower charging chamber 111 of the adjustable flexible shut-off device with a certain pressure of medium from the inlet and outlet holes 14 of the lower charging chamber 111. The rubber sleeve 1 on the side of the lower charging chamber 111 is deformed upward to have a certain cut-off height. The circulation channel 10 is in a closed state;

The lower charging chamber 111 of the adjustable flexible shut-off device is continuously filled with a certain pressure of medium from the inlet and outlet holes 14 of the lower charging chamber 111, and the inner rubber layer 13 of the lower charging chamber 111 is attached to the inner wall of the upper part of the rubber sleeve 1. Together, the circulation channel 10 is in a cut-off state.

Among them, the use of the shut-off state includes but is not limited to flow control, backflow prevention, and overflow. The use of the cut-off state includes but is not limited to the cut-off to prevent the passage of water or the cut-off to prevent the ingress of natural water or the water quality is not suitable. Circulation from this channel. It can be selected according to actual needs.

In this embodiment, when the shut-off state is selected according to the use, the lower charging chamber 111 is pressurized and bulged to a certain height. At this time, the height of the inner rubber layer of the lower pressurizing chamber 111 is equivalent to a height-adjustable weir. When the charging pressure is large, the bulge height is higher and the interception height is also high. When the charging pressure is small or the pressure is released, the bulge height is lower and the interception height is also lower. The charging value can be controlled according to the actual use. When the water level rises above the interception height, the water can overflow from above, which can intercept the mud at the bottom of the pipeline or the mud in the diversion well, and prevent the mud at the bottom from entering the natural water body with rainwater and causing pollution to the natural water body. In addition, it can be used at the drain outlet to adjust the interception height of the lower half of the rubber sleeve according to the natural water level to prevent the natural water body from backfilling. While preventing backfilling, overflow from the top of the lower half of the rubber sleeve does not affect the flood discharge. .

Example 2

Preferably, on the basis of Embodiment 1, referring to Figs. 3, 4, 5 and 6, the rubber sleeve 1 of the simple shut-off device of this embodiment is an integral structure, and the rubber sleeve 1 is located above and below the rubber sleeve 1. The two parts are respectively provided with two independent charging chambers 11, namely an upper charging chamber 110 and a lower charging chamber 111. The upper charging chamber 110 and the lower charging chamber 111 are respectively arranged on the upper and lower sides of the rubber sleeve 1. The outer rubber layer 12 on the side of the charging cavity 110 is provided with inlet and outlet holes communicating with the upper charging cavity 110, and the outer rubber layer 12 on the side of the lower charging cavity 111 is provided with inlet and outlet holes communicating with the lower charging cavity 111.

Further, the pressure source in the control system of the pipeline with the simple shut-off device includes a pressure station, a transmission management and a control valve, where the pressure source can be a gas station, a water station or an oil station, and the transmission pipeline includes the first pipeline and The second pipeline, the first pipeline communicates with the upper charging chamber 110 and the pressure station, the second pipeline communicates with the lower charging chamber 111 and the pressure station, and the first pipeline and the second pipeline are respectively provided with control valves, respectively Used to control the charging and discharging of the upper charging chamber 110 and the lower charging chamber 111;

Monitoring device, the monitoring device in this embodiment is a liquid level gauge, which are respectively arranged on the front and rear sides of the simple interception device to monitor the liquid level value on the front and rear sides of the simple interception device;

The controller, the monitoring device and the control valve are respectively connected to the controller by signals. The controller is used to control the action of the control valve according to the liquid level value monitored by the monitoring device to control the charging or discharging of the upper charging chamber 110 and the lower charging chamber 111. Specifically, the actions of the upper charging chamber 110 and the lower charging chamber 111 are controlled according to usage requirements. Such as diversion requirements, overflow requirements and anti-inflow requirements, etc., the use requirements not specified in this embodiment are the same as the use requirements of the prior art, except that the action of the control gate or weir gate or valve in the prior art Corresponding replacement is to control the operation of the simple shutoff device. The control system of this embodiment has simple structure, convenient control, high degree of automation, and wide application range.

This embodiment also provides a method for using the interception device, as follows:

A simple shut-off device of embodiment 2 is installed in the pipeline. In the installed state, the lower charging chamber 111 is located in the lower half of the pipeline. The device includes a shut-off state and a cut-off state. The following shut-off state or cut-off state can be selected according to the needs of use :

Fill the lower charging chamber 111 of the simple shut-off device with a certain pressure of medium from the inlet and outlet holes 14 connected to the lower charging chamber 111. The rubber sleeve 1 on the side of the lower charging chamber 111 is deformed upwards to have a certain cut-off height. Channel 10 is in a closed state;

From the inlet and outlet holes 14 connected to the lower charging chamber 111 and the inlet and outlet holes 14 connected to the upper charging chamber 110, respectively, the upper charging chamber 110 and the lower charging chamber 111 of the simple shut-off device are continuously filled with a certain pressure of medium. The inner rubber layer 13 of the charging cavity 111 is attached to the inner rubber layer of the upper charging cavity 110, and the circulation channel 10 is in a cut-off state.

In this embodiment, the use of two independent charging chambers has the advantages of the above-mentioned implementation 2, and also has the following advantages: when the cut-off state is required, the two inlet and outlet holes can be charged at the same time to quickly close the circulation channel; when the cut-off state can be used When converted to the shut-off state, only the upper pressure chamber 110 can be relieved of pressure, the lower pressure chamber 111 does not discharge pressure or a small amount of pressure is relieved, and the lower pressure chamber 111 also has a certain bulge height, and can also maintain the shut-off state; When the shut-off state is switched to the cut-off state, only the upper pressure chamber 110 can be charged, and the lower pressure chamber 111 remains unchanged or a small amount of pressure is used to close the flow channel and enter the cut-off state. If it is necessary to open the flow channel, press the upper pressure chamber. The cavity 110 and the lower pressure chamber 111 can simultaneously release the pressure and quickly open the circulation channel. It can be seen that the use of two independent half bodies is not tight and can be switched between states at will, and the response speed is fast. The upper pressure chamber 110 The inner rubber layer 13 of the lower charging chamber 111 has less deformation, and the sealing effect of the circulation channel is better.

Example 3

Referring to Figures 1 to 7, a simple shut-off device includes a rubber sleeve and an outer casing 2. The outer casing 2 is sleeved outside the rubber sleeve 1. The end of the outer casing 2 and the end of the rubber sleeve 1 connection. Preferably, the rubber sleeve 1 has a cylindrical shape, and its end is provided with an outwardly convex edge. The outer shell 2 is also in a cylindrical shape and is sleeved on the outer surface of the rubber sleeve 1. The outer shell 2 has a cylindrical shape. Body and flange, the end of the cylinder and the convex edge of the end of the rubber sleeve 1 are connected by a flange, which is used to add a fixed rubber sleeve 1 to facilitate the installation and use of the rubber sleeve 1. The structure of the rubber sleeve 1 in this embodiment is the same as the structure of the rubber sleeve 1 in the first and second embodiments. There is no sealing requirement between the rubber sleeve 1 and the outer casing 2, the connection structure is simple, and the installation is convenient.

Those skilled in the art can make various modifications and variations to the embodiments of the present invention. If these modifications and variations are within the scope of the claims of the present invention and their equivalent technologies, these modifications and variations are also within the protection scope of the present invention. .

The content not described in detail in the specification is the prior art known to those skilled in the art.

Claims

A simple shut-off device includes a rubber sleeve (1), the rubber sleeve (1) is provided with a through flow channel (10), and is characterized in that the rubber sleeve (1) is provided with a lower filling pressure The cavity (110), the rubber sleeve (1) at the position of the lower charging cavity (110) has a double-layer structure, which is an outer rubber layer (12) and an inner rubber layer (13). The cross-sectional shape of the rubber sleeve (1) where the pressure chamber (110) is located is arc-shaped, and the rubber sleeve (1) has an integral structure;

The outer rubber layer (12) is provided with an inlet and outlet hole (14), and the inlet and outlet hole (14) is in communication with the lower charging cavity (110).
A simple shut-off device according to claim 1, characterized in that:

An upper pressure chamber (110) is also provided, and the rubber sleeve (1) on the side of the upper pressure chamber (110) is also of a double-layer structure, which are respectively an outer rubber layer (12) and an inner rubber layer (13). ), the cross-sectional shape of the rubber sleeve (1) at the position of the upper charging cavity (110) is arc-shaped, and the outer rubber layer (12) on the side of the upper charging cavity (110) is arranged with the The inlet and outlet holes communicated with the charging chamber (110), and the rubber sleeve (1) has an integral structure;

The upper charging cavity (110) is located in the upper half of the rubber sleeve (1), and the lower charging cavity (111) is located in the lower half of the rubber sleeve (1).
A simple shut-off device according to claim 1 or 2, characterized in that it further comprises an outer casing (2), the outer casing (2) is sleeved outside the rubber sleeve (1), and the outer casing (2) is sleeved outside the rubber sleeve (1). The end of the body (2) is connected with the end of the rubber sleeve (1).
A simple shut-off device according to claim 3, characterized in that: the end of the rubber sleeve (1) is provided with a circumferentially outward convex edge, and the outer shell (2) includes a cylinder and a flange. The flange connection part, the edge and the end of the cylinder are fixed by the flange connection part.
A method for using a flow intercepting device, which is characterized in that:

A simple shut-off device as claimed in claim 1 is installed in the pipeline, and the lower pressure chamber (111) is located in the lower half of the pipeline in the installed state. The device includes a shut-off state and a shut-off state, which can be selected according to the needs of use. The following closure status or cut-off status:

Fill the lower charging chamber (111) of the adjustable flexible shutoff device with a certain pressure of medium from the inlet and outlet holes of the lower charging chamber (111), and the rubber sleeve (2) on the side of the lower charging chamber (111) ) The upward deformation has a certain interception height, and the circulation channel (10) is in the interception state;

The lower charging chamber (111) of the adjustable flexible shut-off device is continuously filled with a certain pressure of medium from the inlet and outlet holes of the lower charging chamber (111). The inner rubber layer (13) of the lower charging chamber (111) and The inner wall of the upper part of the rubber sleeve (1) is attached, and the circulation channel (10) is in a cut-off state.
A method for using a flow intercepting device, which is characterized in that:

A simple shut-off device according to claim 2 is installed in the pipeline, and the lower charging chamber (111) is located in the lower half of the pipeline in the installed state. The device includes a shut-off state and a shut-off state, which can be selected according to the needs of use. The following closure status or cut-off status:

Fill the lower charging chamber (111) of the simple shut-off device with a certain pressure of medium from the inlet and outlet holes of the lower charging chamber (111), and the rubber sleeve (2) on the side of the lower charging chamber (111) is deformed upwards It has a certain interception height, and the circulation channel (10) is in the interception state;

From the inlet and outlet holes of the upper charging chamber (110) and the lower charging chamber (11), respectively, the upper charging chamber (110) and the lower charging chamber (111) of the simple shut-off device are continuously filled with a certain pressure of medium. The inner rubber layer (13) of the lower charging cavity (111) is attached to the inner rubber layer of the upper charging cavity (110), and the circulation channel (10) is in a cut-off state.
A pipeline equipped with a simple interception device, which is characterized in that it comprises:

A simple shut-off device according to claim 1 or 2, said simple shut-off device comprising a rubber sleeve (1);

The gland (4), one end of the rubber sleeve (1) is provided with a convex edge outwards, the other end of the rubber sleeve (1) is installed in the pipeline, and the rubber sleeve (1) The outer wall is attached to the inner wall of the pipeline, and the protruding edge is attached and fixed around the pipeline port through the gland (4).
The pipeline equipped with a simple interception device according to claim 7, wherein a control system is further provided, and the control system includes:

A monitoring device for monitoring signals of the environment in which the rubber sleeve (1) is used to obtain a monitoring signal;

A pressure source station, the pressure source is respectively connected to the rubber sleeve (1) through a conveying pipeline, and is used to control the charging or discharging of the rubber sleeve (1);

The controller, the monitoring device and the pressure station are respectively connected to the controller in signal, the controller controls the action of the pressure station according to the monitoring signal of the monitoring device, and controls the flow channel of the rubber sleeve (1) Turn on, cut off, or shut off.
The pipeline equipped with a simple interception device according to claim 8, wherein the monitoring device is one or more of a device for monitoring liquid level, a device for monitoring rainfall, a device for monitoring water quality, and a device for monitoring time. Correspondingly, the monitoring signal is one or more of a liquid level signal, a rainfall signal, a water quality signal, and a time signal.