A flexible intercepting device

Abstract

The present invention relates to the technical field of drainage equipment, and in particular to a flexible intercepting device, comprising: a flexible intercepting device, characterized in that it comprises an outer shell, a rubber sleeve and a sealing part, wherein the rubber sleeve has a built-in water flow channel; the outer shell is arranged outside the rubber sleeve, and the inner wall of the outer shell and the outer wall of the rubber sleeve form a pressure chamber; an inlet and outlet communicated with the pressure chamber, the sealing part is arranged at the limit position of the rubber sleeve in a closed state, the sealing part is located in the flow channel and extends along the inner wall of the rubber sleeve, the sealing part is provided with a filling belt and a filling port communicated with the filling belt, after the medium is filled into the filling belt through the filling port, the sealing part is filled at the limit position of the rubber sleeve in a closed state. The present invention effectively solves the problem that the rubber sleeve cannot be sealed at the limit position, so that the rubber sleeve can achieve zero leakage sealing under a relatively small pressure.

Description

Technical Field

[0001] The invention relates to the technical field of drainage equipment, and in particular to a flexible intercepting device. Background Art

[0002] The flexible intercepting device comprises an outer shell and a rubber sleeve, a pressurized chamber is formed between the outer shell and the rubber sleeve, and the rubber sleeve has a flow channel for water to flow through. By filling the pressurized chamber with pressurized gas, the rubber sleeve is relatively deformed, the flow channel becomes smaller until the flow channel is cut off, and the flexible intercepting device is closed. After the pressurized chamber is deflated, the rubber sleeve resumes its deformation, the flow channel gradually becomes larger to the flow channel, and the flexible intercepting device is opened.

[0003] When the rubber sleeve is completely closed and the flow channel is cut off, the rubber sleeve part at the extreme position of the rubber sleeve has difficulty in deformation due to the lack of deformation space. Even if a large air pressure is filled into the charging chamber, it is difficult to achieve zero leakage sealing of the flow channel. Summary of the invention

[0004] In view of the above problems, the present invention is proposed to provide a flexible shut-off device that overcomes the above problems or at least partially solves the above problems.

[0005] The present invention provides a flexible intercepting device, comprising:

[0006] outer shell;

[0007] A rubber sleeve, wherein the rubber sleeve has a water flow channel built therein; the outer shell is arranged outside the rubber sleeve, and the inner wall of the outer shell and the outer wall of the rubber sleeve form a pressure chamber;

[0008] an inlet and outlet communicated with the pressure charging chamber;

[0009] A sealing part, wherein the sealing part is arranged at the extreme position of the rubber sleeve in the closed state, the sealing part is located in the circulation channel and extends along the inner wall of the rubber sleeve, the sealing part is provided with a filling belt and a filling port connected to the filling belt, after the medium is filled into the filling belt through the filling port, the sealing part is filled at the extreme position of the rubber sleeve in the closed state.

[0010] Preferably: the rubber sleeve includes a cylinder body and a connecting part, the connecting part is arranged on the outside of the cylinder body, the outer shell is connected to the connecting part, the connecting part extends along the axis of the cylinder body, and divides the pressure chamber into a plurality of independent chambers, each independent chamber is provided with the inlet and outlet, and the sealing part is arranged on the inner wall of the rubber sleeve at the corresponding position of the connecting part.

[0011] Preferably, the sealing portion and the extreme position of the rubber sleeve are bonded or vulcanized into an integrated structure.

[0012] Preferably, the rubber sleeve is composed of a first rubber half body and a second rubber half body connected together, connecting parts are provided on both sides of the first rubber half body and the second rubber half body, and the sealing part is fixed between the connecting parts of the first rubber half body and the second rubber half body.

[0013] Preferably, the outer shell comprises a first half shell and a second half shell, the first half shell and the second half shell are connected to the connecting portion, and the first half shell and the second half shell form two independent chambers with the rubber sleeve respectively.

[0014] Preferably: the sealing portion includes a horizontal portion and a filling portion, the filling belt is arranged in the filling portion, the horizontal portion is fixed to the connection between the first rubber half and the second rubber half, the horizontal portion is connected to the filling portion, and the filling portion abuts against the extreme position of the rubber sleeve.

[0015] Preferably, after the filling portion is filled with the medium, it has a curved surface matching the contact surface of the rubber sleeve.

[0016] Preferably, when the closed position of the rubber sleeve has two extreme positions, two sealing parts are provided.

[0017] Preferably, when the closing position of the rubber sleeve has four extreme positions, four sealing parts are provided.

[0018] Preferably, the rubber sleeve is cylindrical, the outer shell is cylindrical, the outer shell is located outside the rubber sleeve, and an end of the outer shell is sealed and connected to an end of the rubber sleeve via a flange.

[0019] A flexible intercepting device of the present invention comprises an outer shell, a rubber sleeve, an inlet and outlet, and a sealing part, wherein a filling belt is provided in the sealing part. Pressurized gas is respectively charged into the pressure charging chamber through the inlet and outlet, the rubber sleeve is deformed, and the flow channel is closed. When the rubber sleeve is deformed, the filling belt of the sealing part is charged with medium to fill the extreme position of the rubber sleeve, which effectively solves the problem that the extreme position of the rubber sleeve cannot be sealed due to space limitation. The filling belt provided in the sealing part is deformed after being charged with medium, and the sealing part plastically fills the gap at the extreme position of the rubber sleeve, so that the rubber sleeve can achieve zero leakage sealing under relatively small pressure.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Also, throughout the accompanying drawings, the same reference figures are used to represent the same components. In the drawings:

[0022] Figure 1 A top view of an embodiment of the present invention is shown.

[0023] Figure 2 Shows Figure 1 AA section view.

[0024] Figure 3 A front view of an embodiment of the present invention is shown.

[0025] Figure 4 Shows Figure 3 BB cross-sectional view of Example 1.

[0026] Figure 5 Shows Figure 2 Partial structural cross-sectional view of Example 2.

[0027] Figure 6 Shows Figure 2 Partial structural cross-sectional view of Example 3

[0028] Among them, 1 is an outer shell, 10 is a pressure chamber, 11 is a first half shell, 12 is a second half shell, 2 is a rubber sleeve, 21 is a cylinder, 22 is a connecting part, 23 is a first rubber half body, 24 is a second rubber half body, 3 is a sealing part, 30 is a horizontal part, 31 is a filling part, 32 is a filling belt, and 33 is a filling port. DETAILED DESCRIPTION

[0029] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] The embodiment of the present invention provides a flexible intercepting device, such as Figure 1 , Figure 2 , Figure 3 and Figure 4The device comprises an outer shell 1, a rubber sleeve 2 and a sealing part 3. The outer shell 1 is arranged outside the rubber sleeve 2, and a water flow channel 20 is built in the rubber sleeve 2. The inner wall of the outer shell 1 and the outer wall of the rubber sleeve 2 form a pressure chamber 10, and an inlet and outlet connected to the pressure chamber 10 are provided. The sealing part 3 is arranged at the extreme position of the rubber sleeve in the closed state, and the sealing part 3 is located in the flow channel 2 and extends along the inner wall of the rubber sleeve 2. The sealing part 3 is provided with a filling belt 32 and a filling port 33 connected to the filling belt 32. After the medium is filled into the filling belt 32 through the filling port 33, the sealing part 3 is used to fill the gap at the extreme position when the rubber sleeve 2 is closed. Among them, the closed state of the rubber sleeve 2 is the deformation state of the rubber sleeve 2 when the rubber sleeve 2 is deformed to the flow channel 20 being cut off under the action of pressure after the external pressure mechanism fills the pressure chamber 10 with pressure medium through the inlet and outlet. Furthermore, the limit position refers to the portion of the rubber sleeve 2 that is farthest from the center on the cross section of the closed position when the rubber sleeve 2 is in the closed state. For example, relative deformation is used as an example. Figure 4 As shown, the limit positions are on both sides of the rubber sleeve 2.

[0031] The present invention utilizes the above structure, and pressurized gas or pressurized liquid is filled into the pressure chamber 10 through the inlet and outlet, the rubber sleeve 2 is relatively deformed, the circulation channel 20 is closed, and the pressure is released through the inlet and outlet pressure chamber 10, the rubber sleeve 2 recovers its deformation, and the circulation channel 20 is connected. The rubber sleeve 2 is filled at its extreme position by setting a sealing part 3 at the extreme position, and a filling belt is set at the sealing part. According to the use requirements, the medium is filled into the filling belt, and the filling belt is deformed. Under the extrusion of the extreme position of the rubber sleeve 2, the deformation shape is the same as the gap shape at the extreme position, and the gap at the extreme position can be well filled. The rubber sleeve has a good sealing effect, and the pressure required for the flexible intercepting device to be closed is greatly reduced. The sealing part 3 before filling occupies a small volume, does not affect the flowability of the circulation channel 2, and can well take into account the flowability.

[0032] Specifically, see Figure 4 As shown, the rubber sleeve 2 is an integral cylindrical structure, the outer shell 1 is an integral cylindrical structure, the outer shell 1 is sleeved outside the rubber sleeve 2, the ends of the outer shell 1 and the rubber sleeve 2 are sealed and connected by flanges, a pressurized chamber 10 is formed between the inner wall of the outer shell 1 and the outer wall of the rubber sleeve 2, and the sealing portion 3 can be bonded or vulcanized to the inner wall of the rubber sleeve 2 to form an integral structure. The flexible intercepting device of this structure is simple in structure, easy to install and disassemble, and has a good sealing effect of the pressurized chamber 10.

[0033] Specifically, see Figure 5As shown, the rubber sleeve 2 includes a cylinder 21 and a connecting portion 22. The connecting portion 22 is arranged outside the cylinder 21. The outer shell 1 is connected to the connecting portion 22. The connecting portion 22 extends along the axis of the cylinder 21, dividing the pressure chamber 10 into multiple independent chambers. Each independent chamber is provided with an inlet and outlet. The sealing portion 3 is arranged on the inner wall of the rubber sleeve 1 at a position corresponding to the connecting portion 22. The sealing portion 3 can be bonded or vulcanized with the inner wall of the rubber sleeve 2 to form an integrated structure. In this embodiment, two connecting portions 22 are arranged on both sides of the cylinder 1 and extend along the axis direction of the cylinder 21 to divide the pressure chamber 10 into two independent chambers. The cylinder 1 and the connecting portion 22 are an integrated structure made of rubber, and the sealing effect of the two independent chambers is good.

[0034] Specifically, see Figure 6 As shown, the rubber sleeve 2 is composed of a first rubber half body 23 and a second rubber half body 24 connected together, and connecting parts 22 are provided on both sides of the first rubber half body 23 and the second rubber half body 24, and the sealing part 3 is fixed between the connecting parts 22 of the first rubber half body 23 and the second rubber half body 24. In this embodiment, the rubber sleeve 2 and the sealing part 3 adopt a split structure, and the sealing part 3 is clamped and fixed by the connecting parts 22 on both sides, and the part of the sealing part 3 located in the circulation channel 2 is provided with a filling belt 32, and the structure of the rubber sleeve 2 and the sealing part 3 is easy to install, and it is convenient to install and disassemble the whole.

[0035] It can be seen from the structure of the above embodiment that after the chamber located on the lower side is filled with pressure, when interception is required, only pressurized gas is filled into the independent chamber in the lower half, and the rubber sleeve in the lower half bulges upward to a certain height, which is equivalent to a interception weir. The pressure filled in the independent chamber is controlled according to the required interception height to intercept water at a certain height. When the water level rises above the interception height, rainwater can overflow from above, which can intercept the mud at the bottom of the flow channel and prevent the mud at the bottom from entering the downstream with the water. When the flexible interception device is used in an environment where backflow prevention is required, such as an outlet, it can prevent the backflow of downstream water without affecting the flow of flood water, and has a wide range of applications.

[0036] Specifically, see Figure 5 and Figure 6 As shown, the outer shell 1 includes a first half shell 11 and a second half shell 12, and the first half shell 11 and the second half shell 12 are connected to the connecting portion 22. The outer shell 1 is made of a rigid structure, with connecting ear plates on both sides, and the connecting portion 22 is clamped and fixed between the connecting ear plates. The first half shell 11 and the second half shell 12 and the rubber sleeve 2 form two independent chambers. The outer shell 1 adopts a two-half structure, which is assembled externally and has a simple structure.

[0037] Specifically, see Figure 6As shown, the sealing portion 3 includes a horizontal portion 30 and a filling portion 31, one end of the horizontal portion 30 is fixed on the outer shell 1, the horizontal portion 30 is fixed between the connecting portions of the rubber sleeve 2, the filling portion 31 is connected to the other end of the horizontal portion 30, the filling portion 31 is located in the circulation channel 20, the filling portion 31 extends along the inner wall of the rubber sleeve 1, and is located at the extreme position of the rubber sleeve 2 in the closed state.

[0038] Furthermore, a plurality of bolts are arranged along both sides of the outer shell 1, and the horizontal portion 30, the connecting ear plates of the first half shell 11 and the second half shell 12, and the connecting portion of the rubber sleeve 2 are fixed as a whole by the bolts. The plurality of bolt structures can be operated from the outside, and installation and disassembly are convenient.

[0039] Furthermore, the inlet and outlet are arranged on the outer shell 1. The inlet and outlet can be two ports arranged on the outer shell 1, which are the inlet and outlet respectively, or can be one port arranged on the outer shell 1, and the inlet and outlet are arranged on the pipeline connected to the port. There is no specific limitation in the present invention, as long as the port can realize the stamping and pressure relief functions of the pressure chamber 10.

[0040] Furthermore, the installation structure of the sealing portion 3 should ensure the sealing of the pressure chamber 10. The specific sealing structure is not described in detail in the present invention and is a conventional technical means in the field.

[0041] Furthermore, the medium filled into the pressure chamber 10 and the filling belt 32 can be pressurized gas, liquid or other medium. Both can use the same pressure charging device and be filled with the same medium, saving equipment costs. In addition, the pressure required for the filling belt in the present invention is much smaller.

[0042] Specifically, if the rubber sleeve 2 adopts a structure of closing the flow channel by relative deformation, two sealing parts 3 are provided, respectively at two extreme positions; if the rubber sleeve 2 adopts a structure of closing the flow channel by relative deformation in four directions, four sealing parts 3 are provided, respectively at four extreme positions. As a more effective solution, sealing parts 3 can be provided at all extreme positions, or sealing parts 3 can be provided only at a certain extreme position, which partially solves the problem of difficulty in deformation at the extreme position and high pressure required for deformation.

[0043] In the present invention, the flexible intercepting device with two independent chambers has the following three working states:

[0044] The first working state is interception. Specifically, the filling belt 32 is filled with medium, the sealing part 3 is kept in a pressurized state, and then the pressurized gas is filled into the independent chamber located in the lower part through the inlet and outlet. The rubber sleeve of the lower part, that is, the first rubber half 21, rises upward to a certain height and has a certain interception height. At this time, the top space of the first rubber half 21 can overflow a part of the water, and can prevent the downstream water from backflowing into the front side of the flexible interception device to avoid waterlogging. It also has the function of blocking the mud and sand in the water from entering the downstream. According to the need of the interception height, you can choose to fill pressure or release pressure in the independent chamber of the lower part to achieve the purpose of adjusting the interception height.

[0045] The second working state is closed. Specifically, the medium is filled into the filling belt 32, and the sealing part 3 is kept in a pressurized state by filling all independent chambers with pressurized gas. The rubber sleeve 1 parts located in the upper and lower parts, namely the first rubber half 21 and the second rubber half 22, are relatively deformed to fit the inner wall, and the flow channel 20 is closed. If it is switched from the open state to the closed state, pressurized gas is filled into the two pressurized chambers at the same time, and the closing speed is fast. If it is switched from the shut-off state to the closed state, only pressurized gas can be filled into the second punching chamber 11, and the closing speed is accelerated. It can realize the rapid closing of the flexible shut-off device with high working efficiency, and is suitable for certain occasions that require rapid closing.

[0046] The third working process is opening. Specifically, the filling belt 32 releases pressure, and then the first pressure chamber 10 and the second pressure chamber 11 release pressure through the inlet and outlet, the first rubber half 21 and the second rubber half 22 restore their deformation, and the flow channel 20 opens. The opening speed is fast. If switching from the interception state to opening, only the lower half of the rubber sleeve 2, that is, the first rubber half, needs to release pressure, which is suitable for some occasions that require quick opening.

[0047] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0048] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A flexible intercepting device, characterized in that: include: Outer shell (1); A rubber sleeve (2), wherein the rubber sleeve (2) has a water flow channel (20) built therein; the outer shell (1) is arranged outside the rubber sleeve (2), and the inner wall of the outer shell (1) and the outer wall of the rubber sleeve (2) form a pressure chamber (10); an inlet and outlet communicated with the pressure charging chamber (10); A sealing portion (3), the sealing portion (3) being arranged at an extreme position of the rubber sleeve (2) in a closed state, the sealing portion (3) being located in the circulation channel (20) and extending along the inner wall of the rubber sleeve (2), the sealing portion (3) being provided with a filling belt (32) and a filling port (33) communicating with the filling belt (32), and after a medium is filled into the filling belt (32) through the filling port (33), the sealing portion (3) is filled at the extreme position of the rubber sleeve (2) in a closed state; The rubber sleeve (2) comprises a cylinder (21) and a connecting portion (22), wherein the connecting portion (22) is arranged outside the cylinder (21), the outer shell (1) is connected to the connecting portion (22), the connecting portion (22) extends along the axis of the cylinder (21), and divides the pressure chamber (10) into a plurality of independent chambers, each independent chamber is provided with the inlet and outlet, and the sealing portion (3) is arranged on the inner wall of the rubber sleeve (2) at a position corresponding to the connecting portion (22); The rubber sleeve (2) is composed of a first rubber half body (23) and a second rubber half body (24) connected together, and connecting parts (22) are provided on both sides of the first rubber half body (23) and the second rubber half body (24), and the sealing part (3) is fixed between the connecting parts (22) of the first rubber half body (23) and the second rubber half body (24); The sealing portion (3) comprises a horizontal portion (30) and a filling portion (31), the filling belt (32) being arranged in the filling portion (31), the horizontal portion (30) being fixed to the connection between the first rubber half body (23) and the second rubber half body (24), the horizontal portion (30) being connected to the filling portion (31), and the filling portion (31) being pressed against the extreme position of the rubber sleeve (2).

2. A flexible shut-off device according to claim 1, characterized in that: The sealing portion (3) and the rubber sleeve (2) are bonded or vulcanized at the extreme position to form an integrated structure.

3. A flexible shut-off device according to claim 1, characterized in that: The outer shell (1) comprises a first half shell (11) and a second half shell (12), the first half shell (11) and the second half shell (12) being connected to the connecting portion (22), and the first half shell (11) and the second half shell (12) respectively forming two independent chambers with the rubber sleeve (2).

4. A flexible shut-off device according to claim 1, characterized in that: After the filling portion (31) is filled with a medium, it has an arc surface that matches the contact surface of the rubber sleeve (2).

5. A flexible shut-off device as claimed in claim 1, characterized in that: When the closed position of the rubber sleeve (2) has two extreme positions, two sealing portions (3) are provided.

6. A flexible shut-off device as claimed in claim 1, characterized in that: When the closed position of the rubber sleeve (2) has four extreme positions, four sealing parts (3) are provided.

7. A flexible shut-off device as claimed in claim 1, characterized in that: The rubber sleeve (2) is cylindrical, the outer shell (1) is cylindrical, the outer shell (1) is located outside the rubber sleeve (2), and the end of the outer shell (1) is sealed and connected to the end of the rubber sleeve (2) via a flange.

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