CN110656694A - Adjustable flexible cut-off device - Google Patents
Adjustable flexible cut-off device Download PDFInfo
- Publication number
- CN110656694A CN110656694A CN201910533897.7A CN201910533897A CN110656694A CN 110656694 A CN110656694 A CN 110656694A CN 201910533897 A CN201910533897 A CN 201910533897A CN 110656694 A CN110656694 A CN 110656694A
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- CN
- China
- Prior art keywords
- rubber sleeve
- cut
- sleeve
- shaped
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/042—Arrangements of means against overflow of water, backing-up from the drain
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/02—Shut-off devices
- E03F7/04—Valves for preventing return flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/02—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm
- F16K7/04—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with tubular diaphragm constrictable by external radial force
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Barrages (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses an adjustable flexible cut-off device, which comprises: the rubber sleeve is internally provided with a flow passage which penetrates along an axis, the shell is sleeved outside the rubber sleeve, the rubber sleeve comprises a deformable part and a non-deformable part, a chargeable cavity is formed between the inner wall of the shell and the outer wall of the rubber sleeve, and the shell is provided with an inlet and outlet hole which is communicated with the chargeable cavity; when the inflatable cavity is filled with the medium, the flow channel is reduced to be cut off, and the section of the cut-off position of the rubber sleeve is an arc-shaped section under the cut-off state of the flow channel; the sealing bulge is arranged on the inner surface of the rubber sleeve and at least partially positioned at two ends of the arc-shaped cross section at the cut-off position of the rubber sleeve. The invention can adjust the control of the interception height, has simple structure, good sealing performance and wide application range.
Description
Technical Field
The invention relates to the technical field of drainage systems, in particular to an adjustable flexible cut-off device.
Background
The application number is CN200820044904.4, Chinese patent who names a pneumatic tube presss from both sides valve discloses a pneumatic tube presss from both sides valve, contains valve body, pipe clamp rubber tube, is equipped with the inlet port on the valve body, and the valve body passes through upper and lower flange with pipe clamp rubber tube fixed mounting in the valve body, forms between pipe clamp rubber tube and the valve body and aerifys the chamber, when aerifing the chamber, the pipe clamp valve is closed, aerifys the chamber and releases gas, and the pipe clamp valve is opened. At present, the pipe clamp rubber pipe with a small caliber can realize two-point deformation closing under air pressure, and the pipe clamp rubber pipe with a large caliber (more than DN 400) can realize three-point or four-point deformation closing under air pressure. However, no matter how the pipe is deformed, the pipe clamp rubber pipe is symmetrically deformed at two points or more, so that the pipe clamp rubber pipe is completely closed in the middle of the flow channel, and water flow is blocked. The pipe clamp rubber pipe with the structure can only realize two states of opening or completely closing. Although the opening of the pneumatic pipe clamp valve can be controlled by controlling the magnitude of the pressurizing pressure, the whole pipe clamp rubber pipe is in a deformation state under the action of the air pressure, the relation between the size of the cross section of the pipeline and the pressure is difficult to calculate and carry out opening control, and the intercepting height cannot be controlled, so that the pneumatic pipe clamp valve in the prior art is mostly applied to a water supply system.
The positions of a diversion well, a discharge port, a regulating reservoir inlet, a sewage interception pipe and the like of the drainage system need to be subjected to interception control or backflow prevention, so that the pneumatic pipe valve is difficult to apply to the drainage system.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides an adjustable flexible cut-off device which can control the cut-off height and has the advantages of simple structure, good sealing performance and wide application range.
The invention provides an adjustable flexible cut-off device, which comprises:
a housing;
the rubber sleeve is internally provided with a flow passage which penetrates along an axis, the shell is sleeved outside the rubber sleeve and comprises a deformable part and a non-deformable part, a chargeable cavity is formed between the inner wall of the shell and the outer wall of the rubber sleeve, and the shell is provided with an inlet and outlet hole which is communicated with the chargeable cavity;
when the inflatable cavity is filled with a medium, the flow channel is reduced to be cut off, and the section of the cut-off position of the rubber sleeve is an arc-shaped section in the cut-off state of the flow channel;
the sealing bulge is arranged on the inner surface of the rubber sleeve, and at least part of the sealing bulge is positioned at two ends of the arc-shaped cross section at the cut-off position of the rubber sleeve.
On the basis of the technical scheme, the section of the non-deformable part of the rubber sleeve is arc-shaped, the sealing bulge is positioned on the inner side of the end part of the arc-shaped part and extends along the axial direction of the rubber sleeve at least partially at the stop position of the flow channel.
On the basis of the technical scheme, a sleeve-shaped gap is formed between the inner wall of the shell and the outer wall of the rubber sleeve, the rubber sleeve is further provided with a blocking part, the blocking part blocks the rubber sleeve into a deformable part and an undeformable part, and the deformable part and the shell are enclosed to form the inflatable cavity.
On the basis of the technical scheme, the blocking part is a shaped lining, the non-deformable part of the rubber sleeve wraps the shaped lining, and the shape of the shaped lining is matched with that of the non-deformable part of the rubber sleeve;
or the blocking part is a shaping outer lining, the shaping outer lining is arranged on the outer surface of the non-deformable part of the rubber sleeve, and the shape of the shaping outer lining is matched with that of the non-deformable part of the rubber sleeve.
On the basis of the technical scheme, the shaped inner lining or the shaped outer lining is a steel wire mesh sheet, and the steel wire mesh sheet and the rubber sleeve are vulcanized together.
On the basis of the technical scheme, the end part of the rubber sleeve is provided with an outer edge, and the end part of the shell is connected with the outer edge in a sealing mode.
On the basis of the technical scheme, the shell comprises an outer sleeve and a pressing sleeve, and the outer edge is fixed by the end part of the outer sleeve and the pressing sleeve in a sealing mode.
On the basis of the technical scheme, the medium filled in the inflatable cavity can be air pressure, water pressure or oil pressure.
Compared with the prior art, the invention has the following advantages:
(1) the invention discloses an adjustable flexible cut-off device.A chargeable cavity is formed between a rubber sleeve and a shell, the rubber sleeve comprises a deformable part and an undeformable part, the rubber sleeve of the deformable part deforms towards the other side and is deformed in a single side; the rubber sleeve filled with the deformed medium is equivalent to an adjusting weir capable of adjusting the height, and when the water level rises to a height higher than the closure height, rainwater can overflow from the upper side. Therefore, the accumulated mud at the bottom of the pipeline or the accumulated mud in the diversion well can be intercepted, and the accumulated mud at the bottom is prevented from entering the natural water body along with rainwater to pollute the natural water body. The water level control device is used at the drainage port, the interception height of the rubber sleeve can be adjusted according to the natural water level condition, the backflow of natural water is prevented, and the overflow from the top of the rubber sleeve at the interception position does not affect flood discharge while the backflow is prevented.
(2) The adjustable flexible cut-off device provided by the invention has the advantages that the rubber sleeve adopts the shaped inner lining or the shaped outer lining to prevent the rubber sleeve on the other side from deforming, the rubber sleeve with an integrated structure only needs to be connected with the end part of the shell in a sealing manner, the sealing effect of the inflatable cavity is good, the installation is convenient, in addition, the inner surface and the inner surface of the rubber sleeve are better in laminating sealing effect when the rubber sleeve adopts the integrated structure and the circulation channel is completely closed, and the water can be dripped and leaked.
(3) The shell structure in the adjustable flexible cut-off device is a sleeve structure which can be an integrated structure, the rubber sleeve is arranged in the shell sleeve, and only sealing connection is needed from two ends of the sleeve, so that the mounting structure is simple, and the sealing effect of the inflatable cavity is good.
Drawings
FIG. 1 is a sectional view of an open state in which a barrier is positioned in a liner according to example 2 of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
FIG. 3 is a cross-sectional view of a closed position in which a barrier is positioned in a liner of example 2 of the present invention.
Fig. 4 is a sectional view taken along line B-B in fig. 3.
Fig. 5 is a partially enlarged view of C in fig. 3.
Fig. 6 is a sectional view showing an opened state in which the spacer is positioned as the outer liner in example 2 of the present invention.
Fig. 7 is a partial enlarged view of fig. 6 at D.
Reference numerals: 1-shell, 10-flow channel, 14-outer sleeve, 15-press sleeve, 2-rubber sleeve, 20-inflatable cavity, 21-baffle, 23-outer edge, 21 a-shaping inner liner, 21 b-shaping outer liner.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
Example 1
Referring to fig. 1 to 7, the present invention provides an adjustable flexible cut-off device, including:
a housing 1;
the rubber sleeve 2 is internally provided with a flow channel 10 which penetrates along an axis, the shell 1 is sleeved outside the rubber sleeve 2, the rubber sleeve 2 comprises a deformable part and an undeformable part, a chargeable cavity 20 is formed between the partial inner wall of the shell 1 and the outer wall of the deformable part of the rubber sleeve 20, and an inlet and outlet hole is formed in the shell 1 and communicated with the chargeable cavity 20 along the cross section direction of the shell 1; the inlet and outlet holes in the embodiment can be single holes or double holes, when the single hole is arranged, two branches are arranged on the conveying pipeline, one branch is used for inlet, and the other branch is used for outlet; because the cross section of the rubber sleeve 2 is circular, the cross sections of the deformable part and the non-deformable part are both arc-shaped, and the deformable part and the non-deformable part of the rubber sleeve 2 in the embodiment are both semicircular;
when the inflatable cavity 20 is filled with a medium such as inflation pressure, water pressure or oil pressure, the flow passage 10 is reduced to be cut off, and the section of the cut-off position of the rubber sleeve 2 is an arc-shaped section in the cut-off state of the flow passage 10;
the sealing bulge 3 is arranged on the inner surface of the rubber sleeve 2, and is positioned at two ends of the arc-shaped cross section at the cut-off position of the rubber sleeve 2. Because the pressure of atmospheric pressure or water pressure or oil pressure that the both ends of arc cross-section position department received is less deformation difficulty, through set up the clearance of sealed protruding 3 packing rubber sleeve both sides tip in tip position, simple structure, it is sealed effectual.
The sealing projection 3 in this embodiment is provided on the inner side wall of the end portion of the non-deformable portion of the rubber sleeve 2, extending in the axial direction of the rubber sleeve 2 at least partially at the cut-off position of the flow channel 10. The sealing protrusion 3 in this embodiment is also of a rubber structure, and may be integrally formed with the rubber sleeve 2.
Under the 1 user state of this embodiment, the flexible part of rubber sleeve 2 is located the lower half of casing 1, when can filling cavity 20 and aerifing or fill water or oil, the lower half of rubber sleeve 2 takes place deformation, according to the use needs, can fill into the atmospheric pressure or the water pressure or the oil pressure of certain pressure, the circulation passageway upwards closes gradually from the bottom in this 2 lower halves of rubber sleeve, not only can control switching on and ending of circulation passageway, can also carry out flow control, the overflow, prevent flowing backwards etc., this embodiment simple structure, high durability and convenient operation, the function is various, wide application scope.
In this embodiment, to adjust the flow rate in the flow channel 10, the flow channel 10 may be intercepted from the bottom by controlling the height of the rubber inner sleeve 2 after the air pressure, the water pressure, or the oil pressure, and the upper portion of the flow channel 10 at the position where the flow channel 10 is located maintains the flow.
After the inflatable cavity 20 in this embodiment is inflated or filled with water, the lower half portion of the rubber sleeve 2 acts as an overflow weir, when the water flow height at the upstream exceeds the interception height of the lower half portion of the rubber sleeve 2, the lower half portion of the rubber sleeve 2 overflows to the downstream from the top of the lower half portion of the rubber sleeve 2, in addition, the lower half portion of the rubber sleeve 2 intercepts accumulated mud at the bottom of a pipeline or accumulated mud in a diversion well, and the accumulated mud at the bottom is prevented from entering a natural water body along with the water flow, so that pollution is caused to the natural water body. And when the nature water liquid level was higher, still had the function of preventing flowing backward, guaranteed that the height of the latter half of rubber sleeve 2 is higher than the liquid level height of nature water, like this moment when the water level of upper reaches is higher than the interception height of the latter half of rubber sleeve 2, can also overflow to low reaches from the top of the latter half of rubber sleeve 2, under the condition that does not influence the flood, prevent flowing backward.
Example 2
This embodiment 2 provides an adjustable flexible cut-off equipment, in order to realize that the rubber sleeve 2 is located the part of can filling cavity 20 position and can't be out of shape, other positions department, have following implementation, this list is not exhaustive, and the concrete mode is as follows:
referring to fig. 1 to 7, a sleeve-shaped gap is formed between the inner wall of the housing 1 and the outer wall of the rubber sleeve 2, the rubber sleeve 2 is further provided with a blocking portion 21, the blocking portion 21 blocks the rubber sleeve 2 into a deformable portion and an undeformable portion, the deformable portion and the housing 1 enclose a cavity 20 which can be filled, in the second mode, the rubber sleeve 2 and the housing 1 are coaxially arranged, and the end portion of the rubber sleeve 2 is connected with the end portion of the housing 1, so that the structure is simple and the operation is convenient.
Further, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the barrier portion 21 is a shaped liner 21a, the non-deformable portion of the rubber sleeve 2 covers the shaped liner 21a, and the shape of the shaped liner 21a is adapted to the shape of the non-deformable portion of the rubber sleeve 2, the rubber sleeve 2 in this embodiment is cylindrical, and the shaped liner 21a is a half-cylindrical groove-shaped steel wire mesh structure, and can be vulcanized together with the non-deformable portion of the rubber sleeve 2 by means of vulcanization, even if the gap in the upper half portion of the rubber sleeve 2 is filled with water or gas, since the shaped liner 21a is rigid, deformation does not occur, only the lower half portion of the rubber sleeve 2 deforms, and the shaped liner 21a is mounted together with the rubber sleeve 2 after vulcanization or after lamination, which is simple in structure and convenient to operate. The end of the rubber sleeve 2 in this embodiment is provided with an outer edge, and the end of the housing 1 is connected with the outer edge 23 in a sealing manner, wherein the housing 1 comprises a cylindrical outer sleeve 14 and a pressing sleeve 15, a groove is arranged on the inner side of the end of the outer sleeve 14, and the outer edge 23 of the rubber sleeve 2 is sealed and fixed in the groove through the end of the outer sleeve 14 and the pressing sleeve 15, so that the sealing effect is good.
Further, referring to fig. 6 and 7, the barrier 21 may also be a shaped outer liner 21b, the shaped outer liner 21b is disposed on the outer surface of the non-deformable portion of the rubber sleeve 2, and the shape of the shaped outer liner 21b is adapted to the shape of the non-deformable portion of the rubber sleeve 2. Rubber sleeve 2 in this embodiment is cylindric, design outer lining 21b is half cylindrical groove shaped's steel wire netting structure, fix on rubber sleeve 2's surface, even the clearance of the first half of rubber sleeve 2 is filled into water or gas, because design outer lining 21b is rigid structure, also indeformable, block rubber sleeve 2 and gas or water contact of the first half, only rubber sleeve 2 of lower half takes place to warp, will design outer lining 21b and the rubber sleeve 2 of the first half install together with rubber sleeve 2 after laminating, moreover, the steam generator is simple in structure, and convenient operation. The end of the rubber sleeve 2 in this embodiment is provided with an outer edge, and the end of the housing 1 is connected with the outer edge 23 in a sealing manner, wherein the housing 1 comprises a cylindrical outer sleeve 14 and a pressing sleeve 15, a groove is arranged on the inner side of the end of the outer sleeve 14, and the outer edge 23 of the rubber sleeve 2 is sealed and fixed in the groove through the end of the outer sleeve 14 and the pressing sleeve 15, so that the sealing effect is good.
The working principle of the invention is as follows: the adjustable flexible cut-off device in embodiments 1 to 3 of the present invention is installed in a diversion well, a discharge port or a pipeline, an inlet of the adjustable flexible cut-off device is connected to a gas station, a water station or an oil station through a gas or water pipeline, after the adjustable flexible cut-off device is inflated or filled with water, a deformable portion of the rubber lining 2 is deformed in a single direction, and a sectional area of the flow channel 10 is gradually increased from the bottom to the top and is reduced, so that the flow rate can be adjusted according to actual use requirements, and operations such as overflow or backflow prevention can be controlled.
Various modifications and variations of the embodiments of the present invention can be made by those skilled in the art, and they are within the scope of the present invention if they are within the scope of the claims of the present invention and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (8)
1. An adjustable flexible cut-off device, characterized by comprising:
a housing (1);
the rubber sleeve (2), a flow channel (10) penetrating along an axis is arranged in the rubber sleeve (2), the shell (1) is sleeved outside the rubber sleeve (2), the rubber sleeve (2) comprises a deformable part and an undeformable part, a chargeable cavity (20) is formed between the inner wall of the shell (1) and the outer wall of the rubber sleeve (20), an inlet and outlet hole is formed in the shell (1), and the inlet and outlet hole is communicated with the chargeable cavity (20);
when the inflatable cavity (20) is filled with a medium, the flow channel (10) is reduced to be cut off, and the section of the cut-off position of the rubber sleeve (2) is an arc-shaped section under the cut-off state of the flow channel (10);
the sealing protrusion (3) is arranged on the inner surface of the rubber sleeve (2), and at least part of the sealing protrusion (3) is located at two ends of the arc-shaped cross section of the cut-off position of the rubber sleeve (2).
2. The adjustable flexible cut-off device as claimed in claim 1, wherein:
the section of the non-deformable part of the rubber sleeve (2) is arc-shaped, the sealing bulge (3) is positioned on the inner side of the end part of the arc-shaped part and extends along the axial direction of the rubber sleeve (2) to be at least partially positioned at the stop position of the flow channel (10).
3. The adjustable flexible cut-off device as claimed in claim 1, wherein:
casing (1) inner wall with form sleeve form clearance between rubber sleeve (20) outer wall, rubber sleeve (20) still are equipped with fender portion (21), fender portion (21) will rubber sleeve (20) block for the part of can deforming and the part of can not deforming, the part of can deforming with casing (1) encloses to close and is can be cavity (3).
4. An adjustable flexible stop device according to claim 3, wherein:
the baffle part (21) is a shaped lining (21a), the non-deformable part of the rubber sleeve (20) covers the shaped lining (21a), and the shape of the shaped lining (21a) is matched with that of the non-deformable part of the rubber sleeve (20);
or the blocking part (21) is a shaped outer lining (21b), the shaped outer lining (21b) is arranged on the outer surface of the non-deformable part of the rubber sleeve (20), and the shape of the shaped outer lining (21b) is matched with the shape of the non-deformable part of the rubber sleeve (20).
5. The adjustable flexible cut-off device as claimed in claim 4, wherein:
the shaping inner liner (21a) or the shaping outer liner (21b) is a steel wire mesh, and the steel wire mesh and the rubber sleeve (20) are vulcanized together.
6. The adjustable flexible cut-off device as claimed in claim 1, wherein:
the end part of the rubber sleeve (20) is provided with an outer edge (23), and the end part of the shell (1) is connected with the outer edge (23) in a sealing mode.
7. The adjustable flexible cut-off device as claimed in claim 6, wherein:
the shell (1) comprises an outer sleeve (14) and a pressing sleeve (15), and the outer edge (23) is fixed in a sealing mode through the end portion of the outer sleeve (14) and the pressing sleeve (15).
8. An adjustable flexible cut-off device as claimed in any one of claims 1 to 7, wherein: the medium filled in the inflatable cavity (20) can be air pressure, water pressure or oil pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533897.7A CN110656694A (en) | 2019-06-19 | 2019-06-19 | Adjustable flexible cut-off device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533897.7A CN110656694A (en) | 2019-06-19 | 2019-06-19 | Adjustable flexible cut-off device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110656694A true CN110656694A (en) | 2020-01-07 |
Family
ID=69028626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910533897.7A Withdrawn CN110656694A (en) | 2019-06-19 | 2019-06-19 | Adjustable flexible cut-off device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110656694A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020253698A1 (en) * | 2019-06-19 | 2020-12-24 | 武汉圣禹排水系统有限公司 | Adjustable flexible shutoff device |
-
2019
- 2019-06-19 CN CN201910533897.7A patent/CN110656694A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020253698A1 (en) * | 2019-06-19 | 2020-12-24 | 武汉圣禹排水系统有限公司 | Adjustable flexible shutoff device |
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Application publication date: 20200107 |