CN111364418A - Flexible cut-off equipment with keep off portion - Google Patents
Flexible cut-off equipment with keep off portion Download PDFInfo
- Publication number
- CN111364418A CN111364418A CN202010198429.1A CN202010198429A CN111364418A CN 111364418 A CN111364418 A CN 111364418A CN 202010198429 A CN202010198429 A CN 202010198429A CN 111364418 A CN111364418 A CN 111364418A
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- rubber
- half body
- rubber half
- wall
- casing
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- 230000000903 blocking effect Effects 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 18
- 230000004888 barrier function Effects 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims 11
- 239000007788 liquid Substances 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000008239 natural water Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/005—Deformable barrages or barrages consisting of permanently deformable elements, e.g. inflatable, with flexible walls
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/54—Sealings for gates
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
Abstract
The invention relates to the technical field of drainage equipment, in particular to a flexible cut-off device with a blocking part, which comprises a base, a baffle plate and a baffle plate, wherein the baffle plate is arranged on the base; the rubber sleeve is formed by connecting a first rubber half body and a second rubber half body, and a water flow channel is arranged in the rubber sleeve; the outer shell is arranged outside the rubber sleeve, a first pressurizing cavity is formed by the inner wall of the outer shell and the outer wall of the first rubber half body, and a second pressurizing cavity is formed by the inner wall of the outer shell and the outer wall of the second rubber half body; an inlet and an outlet which are respectively communicated with the first pressurizing cavity and the second pressurizing cavity are arranged; the blocking part is clamped at the joint of the rubber half body and the second rubber half body, one end of the blocking part is positioned in the circulation channel, extends along the inner wall of the end part of the first rubber half body and abuts against the end part of the first rubber sleeve. The invention has simple structure, cut-off function and wide application range.
Description
Technical Field
The invention relates to the technical field of drainage equipment, in particular to a flexible cut-off device with a blocking part.
Background
Flexible cut-off equipment has shell body and rubber sleeve, forms between shell body and the rubber sleeve and pressurizes the chamber, and rubber sleeve embeds there is the circulation passageway that supplies rivers to pass through, through to pressurizing the intracavity and being filled into and having pressured gas, rubber sleeve relative deformation, the circulation passageway diminishes to the circulation passageway ends, and flexible cut-off equipment closes, pressurizes the chamber and loses heart the back, and rubber sleeve resumes to warp, and the circulation passageway grow gradually to the circulation passageway, and flexible cut-off equipment opens.
When flexible cut-off equipment uses in drainage system, according to service environment needs the telescopic deformation of rubber to damming the water in the runner, not only need the state of complete closure, still need the runner to damming certain height sometimes, be equivalent to the form of weir that can height-adjusting, damming the rainwater of certain height, when the water level rises to more than the height that dams, water can overflow from the above. In addition, when the drainage pipe needs to be used at a drainage outlet, the drainage outlet also needs to be capable of intercepting water at a certain height, so that the natural water body is prevented from flowing backwards, and flood discharge is not influenced while the natural water body is prevented from flowing backwards.
For the above control requirements, the current flexible cut-off device can only be opened and closed, so that the cut-off function cannot be realized, and the application range is small. Therefore, a flexible cut-off device with cut-off function is needed.
Disclosure of Invention
In view of the above, the present invention has been made to provide a flexible shut off device with a barrier that overcomes or at least partially solves the above problems.
The invention provides a flexible cut-off device with a baffle part, which comprises a base, a baffle part and a baffle part, wherein the baffle part is arranged on the base;
an outer housing;
the rubber sleeve is formed by connecting a first rubber half body and a second rubber half body, and a water flow channel is arranged in the rubber sleeve; the outer shell is arranged outside the rubber sleeve, a first pressurizing cavity is formed by the inner wall of the outer shell and the outer wall of the first rubber half body, and a second pressurizing cavity is formed by the inner wall of the outer shell and the outer wall of the second rubber half body;
an inlet and an outlet which are respectively communicated with the first pressurizing cavity and the second pressurizing cavity are arranged;
the blocking part is clamped at the joint of the first rubber half body and the second rubber half body, one end of the blocking part is positioned in the circulation channel, extends along the inner wall of the end part of the first rubber half body and abuts against the end part of the first rubber sleeve.
Preferably: the blocking part is positioned at one end of the flow channel, extends along the inner wall of the end part of the second rubber half body and abuts against the end part of the second rubber half body.
Preferably: the blocking part comprises a horizontal part and a propping part, the horizontal part is fixed between the end parts of the first rubber half body and the second rubber half body, the propping part is connected with one end of the horizontal part, the propping part is positioned in the circulation channel, and the propping part extends along the inner wall of the end part of the first rubber half body and props against the end part of the first rubber sleeve.
Preferably: the abutting part also extends along the inner wall of the end part of the second rubber half body and abuts against the end part of the second rubber half body.
Preferably: the arc length L of the section of the rubber sleeve of the abutting part is in the range of
D is the diameter of the rubber sleeve.
Preferably: the first rubber half body and the second rubber half body respectively comprise an inner cylinder body with an arc-shaped cross section, connecting parts are arranged along two sides of the inner cylinder body, the connecting parts extend along the axis direction of the inner cylinder body, and the blocking parts are clamped between the connecting parts of the first rubber half body and the second rubber half body; and the first rubber half body and the second rubber half body are connected with the outer shell in a sealing mode through the connecting portion.
Preferably: the outer shell comprises a first shell and a second shell, the first shell is located on the outer side of the first rubber half body, the second shell is located on the outer side of the second rubber half body, and the first shell and the second shell are arranged on the outer side of the second rubber half body.
Preferably: first casing and second casing all include that the cross-section is curved outer barrel, follow the both sides of outer barrel are provided with connects cooperation portion, connect cooperation portion edge the axis direction of outer barrel extends, connect cooperation portion with connecting portion connect.
Preferably: and a sealing piece is arranged at one end of the blocking part in the circulating channel.
Preferably: the side of the sealing element away from the baffle part is provided with a tip.
The invention discloses a flexible cut-off device with a blocking part, which comprises an outer shell, a rubber sleeve, an inlet and an outlet and the blocking part. The first rubber half body and the second rubber half body are deformed, the circulation channel is closed, when the flow needs to be cut off, only the first pressurizing cavity is filled with pressurized gas, the first rubber half body is upwards bulged to a certain height, which is equivalent to a cut-off weir, the pressure filled in the first pressurizing cavity is controlled according to the required cut-off height, the water with a certain height is cut off, when the water level rises to the cut-off height, rainwater can overflow from the top, so that accumulated mud at the bottom of the circulation channel can be intercepted, the accumulated mud at the bottom is prevented from entering downstream along with flowing water, when the flexible cut-off device is applied to the environment such as a drainage port and the like needing to be prevented from flowing backwards, the flood cannot be influenced while the downstream water is prevented from flowing backwards, and the application range is wide. When the up-and-down deformation flow channel of the rubber sleeve is closed, the blocking part enables the deformation of the first rubber half body to be changed from the deformation of two or more convex points into the deformation of one convex point, so that the intercepting effect is better, and the intercepting height is easier to control.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 shows a top view of an embodiment of the present invention.
Fig. 2 shows a front view of an embodiment of the invention.
Fig. 3 shows a cross-sectional view a-a of fig. 1.
Fig. 4 is a B-B sectional view showing a conducting state of the flow channel in fig. 2.
Fig. 5 is a B-B sectional view showing a state where the flow path in fig. 2 is shut off.
The device comprises an outer shell 1, a first pressurizing cavity 10, a second pressurizing cavity 11, a first shell 12, a second shell 13, an outer barrel 100, a matching part 101, a rubber sleeve 2, a flow channel 20, a first rubber half body 21, a second rubber half body 22, an inner barrel 200, a connecting part 201, a blocking part 3, a horizontal part 30 and a butting part 31.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The first embodiment of the invention provides a flexible cut-off device with a baffle part, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the device comprises an outer shell 1, a rubber sleeve 2 and two baffle parts 3, wherein the outer shell 1 is arranged outside the rubber sleeve 2, the rubber sleeve 2 is formed by connecting a first rubber half body 21 and a second rubber half body 22, and a water flow channel 20 is arranged in the rubber sleeve 2; the inner wall of the outer shell 1 and the outer wall of the first rubber half body 21 form a first pressurizing cavity 10, and the inner wall of the outer shell 1 and the outer wall of the second rubber half body 22 form a second pressurizing cavity 11; an inlet and an outlet which are respectively communicated with the first pressurizing cavity 10 and the second pressurizing cavity 11 are arranged, and the inlet and the outlet are generally arranged on the outer shell 1; the blocking part 3 is clamped at the joint of the first rubber half body 21 and the second rubber half body 22, one end of the blocking part 3 is positioned in the flow channel 20, extends along the inner wall of the end part of the first rubber half body 21 and abuts against the end part of the first rubber sleeve 21.
According to the invention, by utilizing the structure, pressurized gas or pressurized liquid is respectively filled into the first pressurizing cavity 10 and the second pressurizing cavity 11 through the inlet and the outlet, the first rubber half body 21 and the second rubber half body 22 deform relatively, the circulation channel 20 is closed, and when the first pressurizing cavity 10 and the second pressurizing cavity 11 are depressurized through the inlet and the outlet, the first rubber half body 21 and the second rubber half body 22 recover deformation of the circulation channel 20; or only pressurized gas or pressurized liquid can be filled into the first pressurizing cavity 10, the first rubber half body 21 is upwards bulged and has a certain intercepting height, so that the overflow or backflow prevention environment can be applied to, and the deformation of the end part of the first rubber half body 21 is limited by the blocking part 3 at the end part of the first rubber half body 21, so that the first rubber half body 21 is changed into one convex deformation from two convex deformations, the intercepting effect is better, and the intercepting height is easier to control. And if the first rubber half body 21 is in the intercepting state, only pressure gas or pressure liquid needs to be filled into the second punching cavity 11 at the moment, the flow channel 20 is completely closed, and the response speed is higher.
Further, the blocking portion 3 is located at one end of the flow channel 20, extends along the inner wall of the end portion of the second rubber half 22, and abuts against the end portion of the second rubber half 22. Because the rubber sleeve 2 is when warping, its both ends extreme position department receives the space restriction, and the deformation degree of difficulty is big, separates the deformation that the fender portion 3 restricted the rubber sleeve 2 of this extreme position department, when circulation passageway 20 closed completely, can realize zero leakage and seal, and sealed effectual, simple structure.
The flexible cut-off device of the present invention will be described in detail as follows:
specifically, the blocking portion 3 includes a horizontal portion 30 and a holding portion 31, the horizontal portion 30 is fixed between the end portions of the two sides of the first rubber half body 21 and the second rubber half body 22 and extends along the axial direction of the rubber sleeve 2, the holding portion 31 is connected to one end of the horizontal portion 30, the holding portion 31 is located in the flow channel 20, and the holding portion 31 extends along the inner wall of the end portion of the first rubber half body 21 and holds the end portion of the first rubber sleeve 21. The horizontal part 30 and the abutting part 31 of the blocking part 3 are of an integrated structure, and the installation is convenient.
Furthermore, the cross section of the blocking part 3 is in a transverse T shape and is integrally formed, the abutting part 31 also extends along the inner wall of the end part of the second rubber half body 22 and abuts against the end part of the second rubber half body 22, the abutting part 31 is provided with an arc surface matched with the end part shapes of the first rubber half body 21 and the second rubber half body 22, the deformation of the two ends of the rubber sleeve 2 can be well limited, the first rubber half body 21 and the second rubber half body 22 are fixed together by the symmetrical structure of the blocking part 3 and the outer shell 1, and the stability is good.
Specifically, a large number of experiments find that, when the rubber sleeve 2 of the flexible cut-off device in the prior art is completely closed, a folded portion exists at the extreme deformation position of the rubber sleeve 2, the folded portion is difficult to deform, and zero-leakage sealing is difficult to achieve, so that the range of the arc length L of the cross section of the rubber sleeve 2 of the abutting portion 31 in the embodiment is as follows
D is the diameter of the rubber sleeve.
Specifically, the first rubber half body 21 and the second rubber half body 22 each include an inner cylinder 200 having an arc-shaped cross section, connection portions 201 are provided along both sides of the inner cylinder 200, the connection portions 201 extend in the axial direction of the inner cylinder 200, the blocking portion 3 is interposed between the connection portions 201 of the first rubber half body 21 and the second rubber half body 22, and the first rubber half body 21 and the second rubber half body 22 are hermetically connected to the outer case 1 through the connection portions 201.
Further, the outer casing 1 includes a first casing 12 and a second casing 13, the first casing 12 is located outside the first rubber half 21, a first pressurizing cavity 10 is formed between an inner wall of the first casing 12 and an outer wall of the first rubber half 21, the first casing 12 is provided with an inlet and an outlet, pressurized gas or pressurized liquid is filled into the first pressurizing cavity 10 through the inlet and the outlet, the first rubber half 21 deforms, or the first rubber half 21 recovers deformation through the inlet and the outlet; the second casing 13 is located outside the second rubber half 22, a second inflation cavity 11 is formed between the inner wall of the second casing 13 and the outer wall of the second rubber half 22, an inlet and an outlet are arranged on the second casing 12, pressurized gas or pressurized liquid is filled into the second inflation cavity 11 through the inlet and the outlet, the second rubber half 22 deforms, or the second rubber half 22 recovers deformation through the inlet and the outlet for pressure relief. In this embodiment, the outer shell 1 also has two half-body structures corresponding to the two half-bodies of the rubber sleeve 2, so that the outer shell is convenient to mount.
Further, the first housing 12 and the second housing 13 each include an outer cylinder 100 having an arc-shaped cross section, connection fitting portions 101 are provided along both sides of the outer cylinder 100, the connection fitting portions 101 extend along an axial direction of the outer cylinder 100, a plurality of mounting holes are provided at intervals in the connection fitting portions 101, a plurality of corresponding mounting holes are provided at intervals in the connection portions 201, the two connection portions 201 on the same side are clamped between the two connection fitting portions 101, and the blocking portion 3 is also clamped between the two connection portions 201, and the two connection fitting portions 101, the two connection portions 201, and the blocking portion 3 on the same side are fixed by bolts. Connection structure is simple, can fast assembly shell body 1 and rubber sleeve 2, and the installation is maintained simply.
Specifically, because the extreme positions of the end portions on both sides of the rubber sleeve 2 are difficult to deform, if the first rubber half body 21 and the second rubber half body 22 are to be completely cut off, the flow passage is cut off and has zero leakage, and the required pressure is high, in this embodiment, the sealing member 32 is arranged at one end of the blocking portion 3 located in the flow passage 20, and when the rubber sleeve 2 is completely closed, the extreme positions on both sides of the rubber sleeve 2 are filled with the sealing member 32, and the rubber sleeve 2 can be completely closed by using a small pressure.
Further, one side of the sealing element 32 far away from the blocking part 3 is provided with a tip, and the cambered surface of the outer surface of the sealing element 32 is matched with the shape of the cambered surface of the closed rubber sleeve 2, so that the sealing effect is good.
Furthermore, the sealing element 32 is made of rubber, the hardness of the used rubber is 15-30 degrees, the hardness of the sealing element is soft, and the sealing element can be well adapted to the shapes of the limit positions on the two sides of the rubber sleeve 2 when the sealing element is extruded and deformed by the pressure of the rubber sleeve 2, so that the sealing effect is good.
In the invention, the flexible cut-off device has the following three working states:
the first operating state is shut-off. Specifically, pressurized gas is filled into the first pressurizing cavity 10 through an inlet and an outlet on the first shell 12, the first rubber half body 21 is upwards bulged for a certain height and has a certain intercepting height, at the moment, the top space of the first rubber half body 21 can overflow part of water, downstream water can be prevented from flowing backwards to enter the front side of the flexible intercepting device, waterlogging is avoided, and the function of blocking silt in the water from entering the downstream is achieved. The first pressure charging cavity 10 can be charged with pressure or decompressed according to the requirement of the intercepting height, so as to achieve the purpose of adjusting the intercepting height.
The second operating state is off. Specifically, by filling pressurized gas into the first and second pressurizing chambers 10 and 11, the first and second rubber half bodies 21 and 22 are deformed relatively until the inner walls come into contact with each other, and the flow passage 20 is closed. If the valve is switched from the open state to the closed state, the two pressurizing chambers are simultaneously filled with the pressure gas, the closing speed is high, if the valve is switched from the cut-off state to the closed state, the pressure gas can be filled into the second pressurizing chamber 11 only, and the closing speed is accelerated. The flexible cut-off device can be quickly closed, the working efficiency is high, and the flexible cut-off device is suitable for occasions needing quick closing.
The third operation is opening. Specifically, the first and second pressurizing chambers 10 and 11 are depressurized through the inlet and outlet, the first and second rubber half bodies 21 and 22 are deformed again, the flow channel 20 is opened, and the opening speed is high. If switch over to opening from the state of damming, only need first pressure chamber 10 pressure release can, be applicable to some occasions that need open fast.
Furthermore, in the present invention, the pressurizing chamber may be filled with pressurized gas or pressurized liquid.
Further, in the invention, the inlet and the outlet can be two ports of an inlet and an outlet arranged on the outer shell 1, and a pipeline communicated with each port is provided with a control valve to control the pressurizing or the pressure relief of the pressurizing cavity; the inlet and outlet can also be arranged at an opening of the outer shell 1, and a control valve which can control the functions of stamping and pressure relief is arranged on a pipeline communicated with the opening. Preferably, the inlet and the outlet are arranged on the outer shell 1, and similarly, the inlet and the outlet can also be arranged on the rubber sleeve 2, as long as the inlet and the outlet can be communicated with the pressurizing cavity, and the specific arrangement position can be set according to actual requirements.
Further, the installation structure of the limiting part 3 should ensure the sealing performance of the pressure chamber 10, and the specific arrangement of the sealing structure is not specifically described in the present invention, and is a conventional technical means in the field.
Specifically, if the rubber sleeve 2 adopts a structure that closes the flow channel by relative deformation, two limit portions 3 are provided, respectively at two pole limit positions, and if the rubber sleeve 2 adopts a structure that closes the flow channel by four-way relative deformation, four limit portions 3 are provided, respectively at four pole limit positions. As a better scheme, all limit positions can be provided with the limit parts 3, and the limit parts 3 can also be arranged at a certain limit position, so that the problems that the limit positions are difficult to deform and the pressure required by deformation is large are partially solved.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such 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 such modifications and variations.
Claims (10)
1. A flexible cut-off device with a baffle part is characterized by comprising;
an outer casing (1);
the rubber sleeve (2) is formed by connecting a first rubber half body (21) and a second rubber half body (22), and a water flow channel (20) is arranged in the rubber sleeve (2); the outer shell (1) is arranged outside the rubber sleeve (2), a first pressurizing cavity (10) is formed by the inner wall of the outer shell (1) and the outer wall of the first rubber half body (21), and a second pressurizing cavity (11) is formed by the inner wall of the outer shell (1) and the outer wall of the second rubber half body (22);
an inlet and an outlet which are respectively communicated with the first pressurizing cavity (10) and the second pressurizing cavity (11) are arranged;
the blocking part (3) is clamped at the joint of the rubber half body (21) and the second rubber half body (22), one end of the blocking part (3) is located in the circulation channel (20), extends along the inner wall of the end part of the first rubber half body (21) and abuts against the end part of the first rubber sleeve (21).
2. Flexible shut-off device with partition according to claim 1, characterised in that the partition (3) is located at one end of the flow channel (20), extending along the inner wall of the end of the second rubber half (22), in abutment against the end of the second rubber half (22).
3. A flexible cut-off device with a partition according to claim 1, characterized in that the partition (3) comprises a horizontal portion (30) and a holding portion (31), the horizontal portion (30) being fixed between the ends of the first rubber half (21) and the second rubber half (22), the holding portion (31) being connected to one end of the horizontal portion (30), the holding portion (31) being located in the flow channel (20), the holding portion (31) extending along the inner wall of the end of the first rubber half (21) holding the end of the first rubber sleeve (21).
4. A flexible cut-off device with partition according to claim 3, characterised in that the abutment (31) also extends along the inner wall of the end of the second rubber half (22), abutting against the end of the second rubber half (22).
5. A flexible cut-off device with a partition according to claim 3, wherein the arc length L of the cross-section of the rubber sleeve (2) of the abutting portion (31) is in the range of
D is the diameter of the rubber sleeve.
6. The flexible cut-off device with the partition part according to claim 1, wherein the first rubber half body (21) and the second rubber half body (22) each comprise an inner cylinder (200) with an arc-shaped cross section, connecting parts (201) are arranged along two sides of the inner cylinder (200), the connecting parts (201) extend along the axial direction of the inner cylinder (200), and the partition part (3) is clamped between the connecting parts (201) of the first rubber half body (21) and the second rubber half body (22); and the first rubber half body (21) and the second rubber half body (22) are connected with the outer shell (1) in a sealing mode through the connecting part (201).
7. Flexible shut-off device with partition according to claim 6, characterised in that the outer casing (1) comprises a first casing (12) and a second casing (13), the first casing (12) being located outside the first rubber half (21), the second casing (13) being located outside the second rubber half (22), the first casing (12) and the second casing (13).
8. The flexible cut-off device with the barrier portion according to claim 7, wherein the first casing (12) and the second casing (13) each comprise an outer cylinder (100) having an arc-shaped cross section, connection fitting portions (101) are provided along both sides of the outer cylinder (100), the connection fitting portions (101) extend in an axial direction of the outer cylinder (100), and the connection fitting portions (101) are connected to the connecting portions (201).
9. Flexible shut-off device with a partition according to any one of claims 1 to 8, characterised in that the partition (3) is provided with a seal at its end located in the flow-through channel (20).
10. A flexible shut-off device with a barrier according to claim 9, characterised in that the side of the sealing element remote from the barrier (3) has a pointed end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198429.1A CN111364418A (en) | 2020-03-19 | 2020-03-19 | Flexible cut-off equipment with keep off portion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010198429.1A CN111364418A (en) | 2020-03-19 | 2020-03-19 | Flexible cut-off equipment with keep off portion |
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|---|---|
| CN111364418A true CN111364418A (en) | 2020-07-03 |
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| CN202010198429.1A Pending CN111364418A (en) | 2020-03-19 | 2020-03-19 | Flexible cut-off equipment with keep off portion |
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| CN110792156A (en) * | 2019-06-19 | 2020-02-14 | 武汉圣禹排水系统有限公司 | Adjustable flexible cut-off device and using method thereof |
| CN212956405U (en) * | 2020-03-19 | 2021-04-13 | 武汉圣禹排水系统有限公司 | Flexible cut-off equipment with keep off portion |
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