CN106592705B - Double-sealing non-negative pressure water supply vacuum suppressor - Google Patents
Double-sealing non-negative pressure water supply vacuum suppressor Download PDFInfo
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- CN106592705B CN106592705B CN201510664268.XA CN201510664268A CN106592705B CN 106592705 B CN106592705 B CN 106592705B CN 201510664268 A CN201510664268 A CN 201510664268A CN 106592705 B CN106592705 B CN 106592705B
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- air guide
- guide cylinder
- sealing gasket
- shell
- floating body
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
- E03B11/06—Arrangements or adaptations of tanks for water supply for domestic or like local water supply with air regulators
- E03B11/08—Air regulators
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses a double-sealing non-negative pressure water supply vacuum suppressor, wherein an upper shell and a lower shell are arranged on a flange plate, a floating body is packaged in the lower shell, the upper end of the floating body is connected with an ejector rod, the upper end of the ejector rod is positioned in the upper shell, the upper end of the ejector rod is connected with a horizontal disc, and a primary sealing gasket is arranged on the horizontal disc; only the upper end of the upper shell is open and is provided with an air filter; an air guide cylinder is arranged right above the primary sealing gasket, the air guide cylinder is fixed by an air guide cylinder seat and can slide up and down, the lower end of a conical telescopic sleeve is hermetically connected with the upper end of the air guide cylinder, and the upper end of the conical telescopic sleeve is hermetically connected with the inner wall of the upper shell; the upper side of the conical telescopic sleeve is provided with a mesh plate, and a secondary sealing gasket is fixed on the lower side of the mesh plate. The invention adopts a double-sealing structure, and can realize the necessary functions of the vacuum suppressor as long as one end of the gas cylinder is sealed, so the service life is long and the work is stable.
Description
Technical Field
The invention relates to the field of non-negative pressure water supply, in particular to a double-seal vacuum suppressor for non-negative pressure water supply.
Background
The vacuum suppressor is mainly used on municipal tap water pipe network secondary pressurized water supply equipment to suppress negative pressure generated in a water supply system and keep the pressure balance of the tap water pipe network. The on-off state of the existing vacuum suppressor is controlled only by a switch mechanism (valve plate, ball valve), once the switch mechanism is sealed and has a problem, the vacuum suppressor can not work normally, and the switch mechanism belongs to an action part and is relatively worn, so that the existing vacuum suppressor has the defects of short service life, unstable work, poor sealing performance and the like.
Disclosure of Invention
The invention aims to provide a double-seal non-negative pressure water supply vacuum suppressor which has the advantages of reasonable structural design, good sealing property, long service life and stable work.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a double-sealing vacuum suppressor for water supply without negative pressure is provided, wherein an upper shell is arranged above a flange plate, a lower shell is arranged below the flange plate, and the upper shell is communicated with the lower shell; the lower shell is composed of a hollowed-out side wall and a bottom, a floating body capable of moving up and down is packaged in the lower shell, the upper end of the floating body is connected with a top rod capable of moving up and down along with the floating body, the upper end of the top rod is positioned in the upper shell, the upper end of the top rod is connected with a horizontal disc, and a primary sealing gasket is arranged on the horizontal disc; a guide mechanism for the ejector rod to pass through and preventing the ejector rod from swinging is arranged on the upper side of the flange plate; only the upper end of the upper shell is open and is provided with an air filter; a vertical air guide cylinder with a smaller diameter is arranged right above the primary sealing gasket, the air guide cylinder is fixed in the upper shell through an air guide cylinder seat and can slide up and down, and a push-down spring for driving the air guide cylinder to reset downwards is arranged between the air guide cylinder and the air guide cylinder seat; a conical telescopic sleeve with a large upper part and a small lower part is positioned right above the air guide cylinder, the lower end of the conical telescopic sleeve is hermetically connected with the upper end of the air guide cylinder, and the upper end of the conical telescopic sleeve is hermetically connected with the inner wall of the upper shell; the upper side of the conical telescopic sleeve is provided with a mesh plate horizontally fixed in the upper shell, and the lower side of the mesh plate is fixed with a secondary sealing gasket positioned right above the gas cylinder; when the floating body floats, the two ends of the gas cylinder are sealed by the primary sealing gasket and the secondary sealing gasket, and when the floating body sinks, the two ends of the gas cylinder are not sealed by the primary sealing gasket and the secondary sealing gasket; the upper end of the upper shell is covered with a dust cover.
When the water level in the steady flow compensation tank is insufficient, the floating body descends along with the liquid level, so that the primary sealing gasket moves downwards along with the horizontal disc, the air guide cylinder resets downwards under the action of the lower push spring, finally, the primary sealing gasket and the secondary sealing gasket are separated from the air guide cylinder, the steady flow compensation tank is communicated with the atmosphere through the lower shell, the upper shell, the air guide cylinder, the conical telescopic sleeve and the air filter, and therefore negative pressure generated in the steady flow compensation tank and air in the water replenishing process of the steady flow compensation tank are prevented from being exhausted to the outside. When the steady flow compensation tank is full of water, the floating body floats, the horizontal disc carries the primary sealing gasket to move upwards, the primary sealing gasket seals the lower end of the air guide cylinder and pushes the air guide cylinder to overcome the elastic force of the push-down spring to slide upwards, finally, the upper end of the air guide cylinder is sealed by the secondary sealing gasket, so that the vacuum suppressor is in a cut-off state, and the water in the steady flow compensation tank maintains normal water pressure and cannot overflow.
The invention has the following beneficial effects: because the gas cylinder is a must-pass channel for communicating the steady flow compensation tank with the outside, and both ends of the gas cylinder are sealed in a cut-off state, the purpose of double sealing is achieved; because the two ends of the air guide tube, the primary sealing gasket and the secondary sealing gasket belong to action parts, the tightness is easily influenced by abrasion, and the invention adopts a double-sealing structure, so that the necessary functions of the vacuum suppressor can be realized as long as one end of the air guide tube is sealed, the service life is long, and the work is stable.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure, the device comprises a lower shell 1, a lower shell 2, a floating body 3, a push rod 4, a guide mechanism 5, a horizontal disc 6, a primary sealing gasket 7, a push-down spring 8, an air guide cylinder 9, an air guide cylinder seat 10, a dust cover 11, a mesh plate 12, an air filter 13, a secondary sealing gasket 14, a conical telescopic sleeve 15, an upper shell 16 and a flange plate.
Detailed Description
As shown in fig. 1, the double-sealing vacuum suppressor for water supply without negative pressure disclosed by the invention is characterized in that an upper shell 15 is arranged above a flange 16, a lower shell 1 is arranged below the flange, and the upper shell 15 is communicated with an inner cavity of the lower shell 1; the lower shell 1 is composed of a hollow side wall and a hollow bottom, a floating body 2 capable of moving up and down is packaged in the lower shell, the upper end of the floating body 2 is connected with a top rod 3 capable of moving up and down along with the floating body, the upper end of the top rod 3 is positioned in an upper shell 15, the upper end of the top rod 3 is connected with a horizontal disc 5, and a primary sealing gasket 6 is arranged on the horizontal disc 5; a guide mechanism 4 for the mandril 3 to pass through to prevent the mandril 3 from swinging is arranged on the upper side of the flange plate 16; the upper shell 15 is only open at the upper end and is provided with an air filter 12; a vertical air guide cylinder 8 with a smaller diameter is arranged right above the primary sealing gasket 6, the air guide cylinder 8 is fixed inside the upper shell 15 through an air guide cylinder seat 9 and can slide up and down, and a push-down spring 7 for driving the air guide cylinder 8 to reset downwards is arranged between the air guide cylinder 8 and the air guide cylinder seat 9; a conical telescopic sleeve 14 with a large upper part and a small lower part is positioned right above the gas cylinder 8, the lower end of the conical telescopic sleeve is hermetically connected with the upper end of the gas cylinder 8, and the upper end of the conical telescopic sleeve is hermetically connected with the inner wall of the upper shell 15; the upper side of the conical telescopic sleeve 14 is provided with a mesh plate 11 horizontally fixed in the upper shell 15, and the lower side of the mesh plate 11 is fixed with a secondary sealing gasket 13 positioned right above the gas guide cylinder 8; when the floating body 2 floats, the two ends of the gas cylinder 8 are sealed by the primary sealing gasket 6 and the secondary sealing gasket 13, and when the floating body 2 sinks, the two ends of the gas cylinder 8 are not sealed by the primary sealing gasket 6 and the secondary sealing gasket 13; the upper end of the upper shell 15 is covered with a dust cover 10.
When the water level in the steady flow compensation tank is insufficient, the floating body 2 descends along with the liquid level, so that the primary sealing gasket 6 moves downwards along with the horizontal disc 5, the air guide cylinder 8 is reset downwards under the action of the lower push spring 7, finally, the primary sealing gasket 6 and the secondary sealing gasket 13 are both separated from the air guide cylinder 8, the steady flow compensation tank is communicated with the atmosphere through the lower shell 1, the upper shell 15, the air guide cylinder 8, the conical telescopic sleeve 14 and the air filter 12, and therefore negative pressure generated in the steady flow compensation tank and air in the steady flow compensation tank in the water replenishing process can be prevented from being exhausted to the outside. When the steady flow compensation tank is full of water, the floating body 2 floats, the horizontal disc 5 carries the primary sealing gasket 6 to move upwards, the primary sealing gasket 6 seals the lower end of the air guide cylinder 8 and pushes the air guide cylinder 8 to overcome the elastic force of the push-down spring 7 to slide upwards, finally, the upper end of the air guide cylinder 8 is sealed by the secondary sealing gasket 13, so that the vacuum suppressor is in a cut-off state, and the water in the steady flow compensation tank maintains normal water pressure and cannot overflow.
Because the gas cylinder 8 is a must-pass channel for communicating the steady flow compensation tank with the outside, and both ends of the gas cylinder 8 are sealed in a cut-off state, the purpose of double sealing is achieved; because the two ends of the gas cylinder 8, the primary sealing gasket 6 and the secondary sealing gasket 13 belong to action parts, the tightness is easily influenced by abrasion, and the invention adopts a double-sealing structure, so that the necessary functions of a vacuum suppressor can be realized as long as one end of the gas cylinder 8 is sealed, the service life is long, and the work is stable.
Claims (1)
1. The utility model provides a double containment does not have negative pressure water supply vacuum inhibitor which characterized in that: an upper shell is arranged above the flange plate, a lower shell is arranged below the flange plate, and the upper shell is communicated with the lower shell; the lower shell is composed of a hollowed-out side wall and a bottom, a floating body capable of moving up and down is packaged in the lower shell, the upper end of the floating body is connected with a top rod capable of moving up and down along with the floating body, the upper end of the top rod is positioned in the upper shell, the upper end of the top rod is connected with a horizontal disc, and a primary sealing gasket is arranged on the horizontal disc; a guide mechanism for the ejector rod to pass through and preventing the ejector rod from swinging is arranged on the upper side of the flange plate; only the upper end of the upper shell is open and is provided with an air filter; a vertical air guide cylinder with a smaller diameter is arranged right above the primary sealing gasket, the air guide cylinder is fixed in the upper shell through an air guide cylinder seat and can slide up and down, flanges are respectively arranged on the upper side and the lower side of the outer wall of the air guide cylinder, and a push-down spring for driving the air guide cylinder to reset downwards is arranged between the air guide cylinder and the air guide cylinder seat; a conical telescopic sleeve with a large upper part and a small lower part is positioned right above the air guide cylinder, the lower end of the conical telescopic sleeve is hermetically connected with the upper end of the air guide cylinder, and the upper end of the conical telescopic sleeve is hermetically connected with the inner wall of the upper shell; the upper side of the conical telescopic sleeve is provided with a mesh plate horizontally fixed in the upper shell, and the lower side of the mesh plate is fixed with a secondary sealing gasket positioned right above the gas cylinder; when the floating body floats, the two ends of the gas cylinder are sealed by the primary sealing gasket and the secondary sealing gasket, and when the floating body sinks, the two ends of the gas cylinder are not sealed by the primary sealing gasket and the secondary sealing gasket; the upper end of the upper shell is covered with a dust cover;
when the water level in the steady flow compensation tank is insufficient, the floating body descends along with the liquid level, so that the primary sealing gasket moves downwards along with the horizontal disc, the air guide cylinder is reset downwards under the action of the lower push spring, and finally the primary sealing gasket and the secondary sealing gasket are separated from the air guide cylinder; when the steady flow compensation tank is full of water, the floating body floats, the horizontal disc carries the primary sealing gasket to move upwards, the primary sealing gasket seals the lower end of the air guide cylinder and pushes the air guide cylinder to overcome the elasticity of the push-down spring to slide upwards, finally, the upper end of the air guide cylinder is sealed by the secondary sealing gasket, so that the vacuum suppressor is in a cut-off state, and the water in the steady flow compensation tank maintains normal water pressure and cannot overflow;
because the gas cylinder is a must-pass channel for communicating the steady flow compensation tank with the outside, and both ends of the gas cylinder are sealed in a cut-off state, the purpose of double sealing is achieved; because the two ends of the air guide cylinder, the primary sealing gasket and the secondary sealing gasket belong to action parts, the tightness is easily influenced by abrasion, and the necessary functions of the vacuum suppressor can be realized by adopting a double-sealing structure as long as one end of the air guide cylinder is sealed, so the air guide cylinder has long service life and stable work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510664268.XA CN106592705B (en) | 2015-10-14 | 2015-10-14 | Double-sealing non-negative pressure water supply vacuum suppressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510664268.XA CN106592705B (en) | 2015-10-14 | 2015-10-14 | Double-sealing non-negative pressure water supply vacuum suppressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106592705A CN106592705A (en) | 2017-04-26 |
| CN106592705B true CN106592705B (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510664268.XA Active CN106592705B (en) | 2015-10-14 | 2015-10-14 | Double-sealing non-negative pressure water supply vacuum suppressor |
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| CN (1) | CN106592705B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111535402B (en) * | 2020-04-25 | 2021-03-26 | 上海南汇压力容器厂有限公司 | Diaphragm air pressure tank with joint sealing structure |
| CN113863441A (en) * | 2021-09-15 | 2021-12-31 | 江苏力达自动化设备有限公司 | Energy-saving tank type non-negative pressure water supply equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1265012A1 (en) * | 2001-06-05 | 2002-12-11 | Bayard | Venting valve for conduits for fluid |
| CN2637834Y (en) * | 2003-08-18 | 2004-09-01 | 无锡中安工程设备制造有限公司 | Direct floating negative pressure inhibition device |
| CN201057281Y (en) * | 2007-07-19 | 2008-05-07 | 吴雳鸣 | Elastic double-sealing balancing floater type bidirectional air valve |
| CN203741936U (en) * | 2013-12-30 | 2014-07-30 | 青岛万力科技有限公司 | Axial floating bucket type negative pressure eliminator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205116289U (en) * | 2015-10-15 | 2016-03-30 | 山东华立供水设备有限公司 | High leakproofness does not have negative pressure water supply vacuum inhibitor |
-
2015
- 2015-10-14 CN CN201510664268.XA patent/CN106592705B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1265012A1 (en) * | 2001-06-05 | 2002-12-11 | Bayard | Venting valve for conduits for fluid |
| CN2637834Y (en) * | 2003-08-18 | 2004-09-01 | 无锡中安工程设备制造有限公司 | Direct floating negative pressure inhibition device |
| CN201057281Y (en) * | 2007-07-19 | 2008-05-07 | 吴雳鸣 | Elastic double-sealing balancing floater type bidirectional air valve |
| CN203741936U (en) * | 2013-12-30 | 2014-07-30 | 青岛万力科技有限公司 | Axial floating bucket type negative pressure eliminator |
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| CN106592705A (en) | 2017-04-26 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Double sealed non negative pressure water supply vacuum suppressor Effective date of registration: 20211129 Granted publication date: 20200818 Pledgee: Qingzhou Shandong rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG HUALI WATER SUPPLY EQUIPMENT Co.,Ltd. Registration number: Y2021980013513 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |