A flexible intercepting device and a pipeline for installing the device

Abstract

The present invention discloses a flexible intercepting device and a pipeline for installing the device. The flexible intercepting device comprises: a rubber sleeve, the rubber sleeve is provided with a flow channel running through it, the rubber sleeve is an integrated structure, and at least one independent pressure chamber is provided inside the rubber sleeve, the rubber sleeve is an integrated structure, and an inlet and outlet hole is provided on the outer rubber layer of each pressure chamber, and the inlet and outlet hole is connected with the pressure chamber; an outer sleeve, the outer sleeve is sleeved outside the rubber sleeve, and the two ends of the outer sleeve are respectively provided with limiting parts, namely, a first limiting part and a second limiting part, the first limiting part is provided at the outer sleeve port and extends outward, and the second limiting part is provided at the other end of the outer sleeve and extends inward; the third limiting part is provided at the inner side of the end of the outer sleeve close to the side where the first limiting part is located, and the rubber sleeve is clamped between the second limiting part and the third limiting part. The limiting part of the present invention can be removed at one end, and installation and maintenance are convenient.

Description

Technical Field

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

[0002] The flexible intercepting device is an intercepting facility used at the outlet or discharge port of the diversion well. Its structure generally includes an outer shell and a rubber sleeve. A pressurized cavity is formed between the outer shell and the rubber sleeve. The end of the rubber sleeve is sealed with the end of the outer shell through a flange. When pressurized gas is filled into the pressurized cavity, the rubber sleeve is relatively deformed inward, the inner wall of the rubber sleeve is fitted, and the flow channel is cut off. However, when the diameter of the drainage pipe or discharge port connected to the diversion well is large (such as a diameter of DN400 or more), the diameter of the rubber sleeve cannot be large and the deformation is large. At this time, the end of the rubber sleeve and the end of the outer shell are greatly deformed, and the end of the rubber sleeve slides out between the flange and the end of the outer shell, and the pressurized cavity is not well sealed. Moreover, in the prior art, the outer shell of the flexible intercepting device is not well matched with the pipeline, and the end of the outer shell is often connected to the end of the pipeline, which requires the end of the pipeline to set up an installation well. When the specification of the flexible intercepting device is larger, the required installation well is also larger, the infrastructure construction project is large, the construction efficiency is low and the cost is high, and the later maintenance is inconvenient. Therefore, there is an urgent need for a flexible intercepting device that can solve the sealing problem and is easy to install. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and provide a flexible intercepting device and a pipeline for installing the device, which has the advantages of good sealing effect, simple structure and convenient installation and maintenance.

[0004] The invention discloses a flexible intercepting device, comprising:

[0005] A rubber sleeve, the rubber sleeve is provided with a through-flow channel, the rubber sleeve is an integrated structure, and at least one independent pressure-charging chamber is provided in the rubber sleeve, the rubber sleeve is an integrated structure, and at least one independent pressure-charging chamber is provided in the rubber sleeve, the rubber sleeve at the location of each of the pressure-charging chambers has an outer rubber layer and an inner rubber layer; the outer rubber layer of each of the pressure-charging chambers is provided with an inlet and outlet hole, and the inlet and outlet hole is connected to the pressure-charging chamber;

[0006] An outer sleeve, the outer sleeve is sleeved outside the rubber sleeve, and two ends of the outer sleeve are respectively provided with limiting parts, namely a first limiting part and a second limiting part, the first limiting part is arranged at the outer sleeve port and extends outward, and the second limiting part is arranged at the other end of the outer sleeve and extends inward;

[0007] The third limiting portion is arranged on the inner side of the end of the outer sleeve close to the side where the first limiting portion is located, and the rubber sleeve is clamped between the second limiting portion and the third limiting portion.

[0008] Optionally, the pressure-charging chamber is a lower pressure-charging chamber, and the lower pressure-charging chamber is arranged in the lower half of the rubber sleeve, and the outer rubber layer on the side where the lower pressure-charging chamber is located is provided with a lower inlet and outlet hole.

[0009] Optionally, two independent pressure chambers are set, namely an upper pressure chamber and a lower pressure chamber, and the upper pressure chamber and the lower pressure chamber are respectively arranged on the upper and lower sides of the rubber sleeve, and the outer rubber layer on the side where the upper pressure chamber is located is provided with an upper inlet and outlet hole connected to the upper pressure chamber, and the outer rubber layer on the side where the lower pressure chamber is located is provided with a lower inlet and outlet hole connected to the lower pressure chamber.

[0010] Optionally, three independent pressure-charging chambers are provided, which are divided into three parts along the circumference of the rubber sleeve, and each part of the rubber sleeve is provided with one pressure-charging chamber;

[0011] Alternatively, four independent pressure-charging chambers are provided, which are divided into four parts along the circumference of the rubber sleeve, and each part of the rubber sleeve is provided with one pressure-charging chamber.

[0012] Optionally, the outer sleeve has a horizontally arranged tube body, and bosses with opposite protruding directions are arranged at both ends of the tube body, wherein the boss protruding outward is the first limiting portion, and the boss protruding inward is the second limiting portion, and the first limiting portion is provided with a mounting hole.

[0013] Optionally, the third limiting portion includes a bending piece, the bending piece has a horizontal portion and a vertical portion, the horizontal portion is provided with a mounting hole, the horizontal portion is connected to the outer sleeve, and the vertical portion and the second limiting portion abut against a rubber sleeve.

[0014] Optionally, the third limiting portion includes a plurality of bending parts, which are arranged at intervals along the end of the rubber sleeve;

[0015] Alternatively, the bending piece of the third limiting portion is an integrated structure, and the shape of the vertical portion of the bending piece matches the end portion of the rubber sleeve.

[0016] In another aspect, the present invention further provides a pipeline, wherein a flexible flow-cutting device as described above is installed in a port of the pipeline;

[0017] The outer wall of the outer sleeve fits with the inner wall of the port close to the pipe, the first limiting portion of the outer sleeve is fixed around the port of the pipe, the second limiting portion extends into the pipe, and the second limiting portion and the third limiting portion jointly fix the rubber sleeve.

[0018] Compared with the prior art, the advantages of the present invention are as follows:

[0019] (1) The flexible intercepting device of the present invention can only adopt a rubber sleeve structure, and a pressure chamber is arranged in the rubber sleeve. The entire rubber sleeve is an integrated structure. Compared with the prior art, there is no problem of sealing the pressure chamber, the structure is simpler, and it is easy to install and use; the rubber sleeve is clamped and fixed by the limiting parts arranged at both ends of the rubber sleeve. When the rubber sleeve is installed and maintained later, the rubber sleeve can be pulled out as a whole by simply removing the third limiting part from one end, which is convenient for installation and maintenance.

[0020] (2) An independent pressure-charging chamber or two independent pressure-charging chambers are arranged in the rubber sleeve of a flexible intercepting device of the present invention. In addition to the traditional function of closing the flow channel, the rubber sleeve also has a intercepting function, and can only pressurize the lower pressure-charging chamber. The inner rubber layer of the lower pressure-charging chamber bulges upward, and the lower half of the rubber sleeve after inflation and deformation is equivalent to an adjustable weir with an adjustable height. When the water level rises above the intercepting height, water can overflow from above. In this way, the accumulated mud at the bottom of the pipeline or the accumulated mud in the diversion well can be intercepted to prevent the accumulated mud at the bottom from entering the natural water body with rainwater and polluting the natural water body. In addition, when used at the drain outlet, the intercepting height of the lower half of the rubber sleeve can be adjusted according to the natural water level to prevent the backflow of natural water bodies. While preventing backflow, the overflow from the top of the lower half of the rubber sleeve does not affect the flood discharge.

[0021] (3) The rubber sleeve of a flexible shut-off device of the present invention is designed to be deformed in three or four directions to close the shut-off channel. The sealing member is filled in the gap at the closed position of the rubber sleeve, and the air pressure used to close the rubber sleeve is relatively small, so that zero leakage can be achieved at a relatively low pressure (less than 2 bar). The sealing effect is good, the air pressure is low, the sealing structure is simple, and the flow capacity of the flow channel is not affected.

[0022] (4) The present invention provides a pipeline for installing a flexible shut-off device. During installation, the first limiting part is fixedly installed at the end of the pipeline. During installation or disassembly, it is only necessary to remove the first limiting part from the end of the pipeline to complete the installation and disassembly of the entire device. When the rubber sleeve needs to be maintained, the third limiting part is removed, and the entire rubber sleeve can be pulled out for maintenance or replacement. This is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of Example 1 in the installed state.

[0024] Figure 2 for Figure 1 AA section view.

[0025] Figure 3 for Figure 1 A partial enlarged view of point A in the middle.

[0026] Figure 4 This is a schematic diagram of the rubber sleeve in the open state of the second flow channel.

[0027] Figure 5 It is a schematic diagram of the two flow channels in the form of a rubber sleeve in the cut-off state.

[0028] Figure 6 This is a schematic diagram of the rubber sleeve-type three-circulation channel state being open.

[0029] Figure 7 It is a schematic diagram of the three-flow channel in the form of a rubber sleeve in the cut-off state.

[0030] Figure 8 It is a schematic diagram of setting three independent pressurized chambers in the rubber sleeve form three.

[0031] Fig. 9 Schematic diagram of rubber sleeve form three with four independent pressurized chambers.

[0032] Figure numbers: 1-rubber sleeve, 10-circulation channel, 11-pressure charging chamber, 110-upper pressure charging chamber, 111-lower pressure charging chamber, 12-outer rubber layer, 13-inner rubber layer, 2-outer sleeve, 20-first limiting part, 21-second limiting part, 22-third limiting part, 220-horizontal part, 221-vertical part, 3-port. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Example 1

[0035] See also Figures 1 to 8As shown, the present invention provides a flexible intercepting device, including a rubber sleeve 1, an outer sleeve 2 and a third limiting portion 22, the rubber sleeve 1 is provided with a through-flow channel 10, the rubber sleeve 1 is an integrated structure, and at least one independent pressurizing chamber 11 is provided in the rubber sleeve 1, the rubber sleeve 1 is an integrated structure, and at least one independent pressurizing chamber 11 is provided in the rubber sleeve 1, and the rubber sleeve 1 at the position where each of the pressurizing chambers 11 is located has an outer rubber layer 12 and an inner rubber layer 13; the outer rubber layer 12 of each pressurizing chamber 11 The rubber sleeve 1 is provided with an inlet and outlet hole, which is connected with the pressure chamber 11; the outer sleeve 2 is sleeved outside the rubber sleeve 1, and the two ends of the outer sleeve 2 are respectively provided with a limiting part, namely a first limiting part 20 and a second limiting part 21, the first limiting part 20 is provided at the end of the outer sleeve 2 and extends outward, and the second limiting part 21 is provided at the other end of the outer sleeve 2 and extends inward; the third limiting part 23 is provided on the inner side of the end of the outer sleeve 2 close to the side where the first limiting part 20 is located, and the rubber sleeve 1 is clamped between the second limiting part 21 and the third limiting part 22. The rubber structure forming the pressure chamber 11 in this embodiment is an integrated structure with the rubber structure at other positions. Since the rubber sleeve 1 does not form the pressure chamber 11 together with other components, there is no need to set a sealing structure for sealing the pressure chamber 11 to prevent leakage of the pressure chamber 11. The structure is simple, easy to install, and has a wide range of applications. The rubber sleeve 1 is only fixed at both ends, and no mounting structure is provided on the tube body of the rubber sleeve 1, which is convenient for disassembly, installation and maintenance.

[0036] Preferably, as a specific implementation, the structure of the rubber sleeve 1 has the following forms:

[0037] The structural form of the rubber sleeve 1 is shown in FIG. Figure 2 As shown, in this embodiment, the rubber sleeve 1 is cylindrical, and the pressure chamber 11 in the rubber sleeve 1 is also cylindrical. The rubber sleeve 1 is provided with an inlet and outlet hole. The pressure chamber 11 is pressurized through the inlet and outlet hole, the rubber sleeve 1 is deformed, and the flow channel 10 is cut off. The pressure chamber 11 is pressurized through the inlet and outlet hole, the rubber sleeve 1 recovers its deformation, and the flow channel 10 is connected.

[0038] The second structural form of the rubber sleeve 1 is shown in FIG. Figure 4 and Figure 5As shown, the cross-sectional shape of the rubber sleeve 1 is circular. When a pressure chamber 11 is provided, the pressure chamber 11 is a lower pressure chamber 111. The cross-sectional shape of the lower pressure chamber 111 is arc-shaped. The arc length of the cross-sectional shape of the lower pressure chamber 111 is smaller than the circumference of the rubber sleeve 1 at the cross-sectional shape. The rubber sleeve 1 at the position of the lower pressure chamber 111 has an outer rubber layer 12 and an inner rubber layer 13, and the outer rubber layer 12 and the inner rubber layer 13 and the rubber sleeve 1 outside the pressure chamber 11 are an integral structure. The arc length of the lower pressure chamber 111 can account for one-half or two-thirds of the circumference of the entire rubber sleeve 1. Different specifications can be designed according to different interception heights. The higher the interception height, the more the arc length of the lower pressure chamber 11 approaches the circumference of the rubber sleeve. The outer rubber layer 12 of the lower pressure chamber 111 is provided with an inlet and outlet hole, which is connected to the pressure chamber 11. When pressurized through the inlet and outlet holes, the inner rubber layer 13 on the side where the lower pressure chamber 111 is located rises to a certain height, which is equivalent to a weir with adjustable height. When the inner rubber layer 13 fits the inner wall of the rubber sleeve 1 in the upper part, the flow channel 10 is cut off. When the inner rubber layer 13 of the lower pressure chamber 111 in the lower part of the structure rises to a certain height, the top space can overflow, which can block part of the mud and sand garbage from entering the downstream, and can also prevent backflow when the water level in the downstream is too high.

[0039] The third structural form of the rubber sleeve 1 is shown in FIG. Figure 6 and Figure 7 As shown, two independent pressure chambers 11 are provided, namely an upper pressure chamber 110 and a lower pressure chamber 111. The upper pressure chamber 110 and the lower pressure chamber 111 are respectively provided on the upper and lower sides of the rubber sleeve 1. The outer rubber layer 12 on the side where the upper pressure chamber 110 is located is provided with an upper inlet and outlet hole connected to the upper pressure chamber 110, and the outer rubber layer 12 on the side where the lower pressure chamber 111 is located is provided with a lower inlet and outlet hole connected to the lower pressure chamber 111.

[0040] The fourth structural form of the rubber sleeve 1 is shown in FIG. Figure 8 As shown, three independent pressure chambers 11 are provided, which are divided into three parts along the circumference of the rubber sleeve 1, and each rubber sleeve 1 is provided with a pressure chamber 11; or, see Fig. 9As shown, four independent pressure chambers 11 are provided, which are divided into four parts along the circumference of the rubber sleeve 1. Each rubber sleeve 1 is provided with a pressure chamber 11, and each pressure chamber 11 is provided with an inlet and outlet hole. As a preferred embodiment, the rubber sleeve 1 should be divided into three or four equal parts to ensure that the inner rubber layer of each rubber sleeve 1 has the same deformation and the same pressure, which is convenient for control. For a relatively large rubber sleeve 1, if one or two half structures are relatively deformed to cut off the flow channel 10, if the diameter of the flow channel 10 is large, the deformation of the rubber sleeve 1 on the upper and lower sides is large, and the required pressure is large, which not only has a poor sealing effect, the flow channel 10 cannot achieve zero leakage, but also has a safety hazard of explosion. By using the three-way or four-way deformation to close the flow channel of this embodiment, the inner rubber layer of each independent pressure chamber has a small deformation, and the required pressure is small, which is safe and reliable, has a good sealing effect, and has a wide range of uses.

[0041] Further preferably, the inlet and outlet holes in this embodiment can be two holes, an inlet hole and an outlet hole, arranged on the outer rubber layer 12, or can be one hole arranged on the outer rubber layer 12, and an inlet pipeline and an outlet pipeline are arranged on the delivery pipeline connected to the hole.

[0042] Further preferably, in the present embodiment, the outer sleeve 2 has a horizontally arranged tube body, and bosses with opposite protruding directions are arranged at both ends of the tube body, wherein the boss protruding outward is the first limiting portion 20, and the boss protruding inward is the second limiting portion 21, and the first limiting portion 20 is provided with a mounting hole, and the first limiting portion 20 is fixed to the concrete structure around the pipe port by using expansion bolts, and the tube body is directly inserted into the pipe and passes through the third limiting portion 22.

[0043] More preferably, see Figure 3 As shown, in this embodiment, the third limiting portion 22 includes a bending piece, and the bending piece has a horizontal portion 220 and a vertical portion 221. The horizontal portion 220 is provided with a mounting hole, and the horizontal portion 220 is connected to the outer sleeve 2 by an expansion bolt, and the vertical portion 221 is abutted against the second limiting portion 21. Preferably, the third limiting portion includes a plurality of bending pieces, which are arranged at intervals along the end of the rubber sleeve 1; or, the bending piece of the third limiting portion 22 is an integral structure, and the shape of the vertical portion 221 of the bending piece matches the end of the rubber sleeve 1. In this embodiment, the rubber sleeve 1 does not destroy the overall result of the rubber sleeve 1, and the rubber sleeve 1 is fixed at both ends, and the fixing structure is simple, which is convenient for installation and disassembly.

[0044] Example 2

[0045] Based on Example 1, see Figure 1 As shown, a pipeline, the flexible shut-off device of Example 1 is installed in the port 3 of the pipeline;

[0046] The outer wall of the outer sleeve 2 fits with the inner wall of the port 3 of the pipeline, and the outer wall of the outer sleeve 2 fits with the inner wall of the port 3 near the pipeline. The first limiting part 20 of the outer sleeve 2 is fixed around the port 3 of the pipeline, and the second limiting part 21 extends into the pipeline. The second limiting part 21 and the third limiting part 22 jointly fix the rubber sleeve 1. The third limiting part 22 and the end of the outer sleeve 2 are installed near the end of the pipeline 3. During installation, the first limiting part is installed and fixed at the end of the pipeline. During installation or disassembly, it is only necessary to remove the first limiting part from the end of the pipeline to complete the installation and disassembly of the entire device. When the rubber sleeve needs to be maintained, the third limiting part 22 is removed, and the rubber sleeve 1 can be completely pulled out for maintenance or replacement, which is simple and easy to operate. The flexible intercepting device of this embodiment does not occupy the space in front of or behind the pipeline. It is installed in the pipeline to save space, which is convenient for installation and later maintenance.

[0047] Those skilled in the art may 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 equivalents, these modifications and variations are also within the protection scope of the present invention.

[0048] The contents not described in detail in the specification are prior art known to those skilled in the art.

Claims

1. A flexible intercepting device, characterized in that: include: A rubber sleeve (1), the rubber sleeve (1) being provided with a through-flow passage (10), the rubber sleeve (1) being an integral structure, and at least one independent pressurizing chamber (11) being provided inside the rubber sleeve (1), the rubber sleeve (1) being an integral structure, and at least one independent pressurizing chamber (11) being provided inside the rubber sleeve (1), the rubber sleeve (1) at the location of each pressurizing chamber (11) having an outer rubber layer (12) and an inner rubber layer (13); the outer rubber layer (12) of each pressurizing chamber (11) being provided with an inlet and outlet hole, the inlet and outlet hole being in communication with the pressurizing chamber (11); An outer sleeve (2), the outer sleeve (2) being sleeved outside the rubber sleeve (1), and having limiting portions, namely a first limiting portion (20) and a second limiting portion (21), respectively disposed at two ends of the outer sleeve (2), the first limiting portion (20) being disposed at an end of the outer sleeve (2) and extending outwardly, and the second limiting portion (21) being disposed at the other end of the outer sleeve (2) and extending inwardly; a third limiting portion (22) disposed on the inner side of the end of the outer sleeve (2) close to the side where the first limiting portion (20) is located, and the rubber sleeve (1) is clamped between the second limiting portion (21) and the third limiting portion (22); The outer sleeve (2) has a horizontally arranged tube body, and bosses protruding in opposite directions are arranged at both ends of the tube body, wherein the boss protruding outwards is a first limiting portion (20), and the boss protruding inwards is a second limiting portion (21), and the first limiting portion (20) is provided with a mounting hole; The third limiting portion (22) comprises a bending piece, the bending piece having a horizontal portion (220) and a vertical portion (221), the horizontal portion (220) being provided with a mounting hole, the horizontal portion (220) being connected to the outer sleeve (2), and the vertical portion (221) and the second limiting portion (21) being against the rubber sleeve (1).

2. A flexible shut-off device according to claim 1, characterized in that: The pressure-charging chamber (11) is a lower pressure-charging chamber, which is arranged at the lower half of the rubber sleeve (1), and the outer rubber layer (12) on the side where the lower pressure-charging chamber is located is provided with a lower inlet and outlet hole.

3. A flexible shut-off device according to claim 1, characterized in that: Two independent pressure chambers (11) are provided, namely an upper pressure chamber and a lower pressure chamber. The upper pressure chamber and the lower pressure chamber are respectively provided on the upper and lower sides of the rubber sleeve (1). The outer rubber layer (12) on the side where the upper pressure chamber is located is provided at an upper inlet and outlet hole connected to the upper pressure chamber, and the outer rubber layer (12) on the side where the lower pressure chamber is located is provided at a lower inlet and outlet hole connected to the lower pressure chamber.

4. A flexible intercepting device according to claim 1, characterized in that: Three independent pressure-charging chambers are provided, which are divided into three parts along the circumference of the rubber sleeve (1), and each part of the rubber sleeve (1) is provided with a pressure-charging chamber (11); Alternatively, four independent pressure-charging chambers are provided, which are divided into four parts along the circumference of the rubber sleeve (1), and each part of the rubber sleeve (1) is provided with a pressure-charging chamber (11).

5. A flexible shut-off device according to claim 1, characterized in that: The third limiting portion (22) comprises a plurality of bent parts, which are arranged at intervals along the end of the rubber sleeve (1); Alternatively, the bending piece of the third limiting portion (22) is an integral structure, and the shape of the vertical portion (221) of the bending piece matches the end of the rubber sleeve (1).

6. A pipeline, characterized in that: A flexible shut-off device as claimed in any one of claims 1 to 5 is installed in the port (3) of the pipeline; The outer wall of the outer sleeve (2) is fitted with the inner wall of the port (3) close to the pipe, the first limiting portion (20) of the outer sleeve (2) is fixed around the port (3) of the pipe, the second limiting portion extends into the pipe, and the second limiting portion (21) and the third limiting portion (22) jointly fix the rubber sleeve (1).

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