CN102322532B - Zero-pressure opening type remotely-controlled float valve - Google Patents
Zero-pressure opening type remotely-controlled float valve Download PDFInfo
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- CN102322532B CN102322532B CN201110255611.7A CN201110255611A CN102322532B CN 102322532 B CN102322532 B CN 102322532B CN 201110255611 A CN201110255611 A CN 201110255611A CN 102322532 B CN102322532 B CN 102322532B
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Abstract
The invention relates to a zero-pressure opening type remotely-controlled float valve, comprising a main valve and a control valve, wherein the main valve comprises a valve body, a valve seat, a valve disk, a valve rod and a valve cover; and the control valve is communicated with a main valve control room. The zero-pressure opening type remotely-controlled float valve is characterized in that a zero-pressure opening device composed of a pull rod, a lower spring seat, an upper spring seat, a spring and a setting nut is arranged on the upper end of the valve rod; the lower end of the pull rod is fixedly connected with the upper end of the valve rod; the center of the lower spring seat is fixedly and hermetically installed on the valve cover after penetrating the pull rod and matched with the pull rod in a motive seal manner; the upper spring seat is fixedly installed on the pull rod via the setting nut; and the spring is installed between the lower spring seat and the upper spring seat. The zero-pressure opening device has the advantages of overcoming the dead weights of the valve disk and the valve rod of the main valve to ensure that the valve disk of the main valve is in a normally open state and still supplying water to a water-supplying object under the condition of a medium pressure of lower than 0.05MPa so that the control functions of opening the system under a zero pressure and supplying the water under a low pressure are fulfilled. The zero-pressure opening type remotely-controlled float valve is a control valve suitable for the water level of a water tank, a pool and a water tower.
Description
Technical field
The present invention relates to valve field, specifically about a kind of remote control float valve.The present invention is applicable to the control valve of water tank, pond, water tower level.
Background technique
As the patent No. electric remote control float valve that is ZL200920117933.3, comprise main valve, solenoid pilot valve, float switch, control pipeline and control valve, main valve comprises valve body, flap and control room, control room is communicated with main valve inlet passage, solenoid pilot valve respectively by controlling pipeline, mainly that float switch is lifting structure, at solenoid pilot valve outlet serial connection one ball float pilot valve.Have advantages of that water level control range is large, adjustable, dead electricity is controlled automatically.Be applicable to the water level control of water tower, water tank.Its major defect is that the flap of main valve is promoted to open by pressure medium in main valve inlet pipeline, and when the pressure medium in main valve inlet pipeline is during lower than 0.05Mpa, main valve just cannot be opened, function out of hand.
Summary of the invention
The object of the invention is the shortcoming existing for prior art, provide a kind of main valve inlet pipeline pressure medium lower than 0.05Mpa state under, still can bring into play the zero-pressure opening remote control float valve of controlling function.
Technological scheme of the present invention comprises main valve and control valve, main valve comprises valve body, valve seat, valve disc, valve rod, valve gap, valve disc is fixedly connected with valve rod, be positioned at valve seat outlet side, valve rod is fixed on diaphragm center by mounting disc sealing, diaphragm edge sealing is arranged between valve body and valve gap, between diaphragm and valve gap, form main valve control room, this main valve control room is communicated with control valve, mainly that valve rod upper end is provided with zero-pressure opening device, this zero-pressure opening device is by pull bar, lower spring cup, upper spring seat, spring, the nut of adjusting composition, pull bar lower end is fixedly connected with valve rod upper end, the center of lower spring cup is arranged on valve gap through pull bar fixing seal, and coordinate with pull bar motive sealing, upper spring seat is fixedly mounted on pull bar by the nut of adjusting, spring fitting is between lower spring cup and upper spring seat.
Preferably, lower spring cup is fixedly mounted on the positioning disk being fixedly connected with valve gap upper end by carrying on the back cap.
Advantage of the present invention is to be provided with zero-pressure opening device in valve rod upper end, this zero-pressure opening device has overcome the deadweight of main valve valve disc and valve rod, make main valve valve disc in normally open, main valve inlet pipeline pressure medium lower than 0.05Mpa state under, still can to water supply object supply water, realize system zero press off open, low pressure supply water control function.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Zero-pressure opening remote control float valve as shown in Figure 1, comprise main valve and control valve, main valve comprises valve body 1, valve seat 18, valve disc 2, valve rod 17, valve gap 19, valve disc 2 is fixedly connected with valve rod 17, be positioned at valve seat 18 outlet sides, valve seat 18 centers are shaped with pilot hole, and valve rod 17 lower ends are movably arranged in this pilot hole.Valve rod 17 is fixed on diaphragm 16 centers by mounting disc 15 sealings, and diaphragm 16 edge seals are arranged between valve body 1 and valve gap 19, between diaphragm 16 and valve gap 19, form main valve control room 4, and this main valve control room 4 is communicated with control valve.Described control valve is made up of ball float pilot valve 5 and needle-valve 3, ball float pilot valve 5 is arranged on the control pipeline between main valve control room 4 and water tank, needle-valve 3 is arranged on the intake pipe in main valve control room 4, by the aperture of metering pin valve 3, while making by control object low water level, main valve control room 4 internal drainage speed are greater than water intake velocity.Mounting ball valve 6 on the control pipeline between ball float pilot valve 5 and main valve control room 4.Valve rod 17 upper ends are provided with zero-pressure opening device, this zero-pressure opening device is by pull bar 12, lower spring cup 10, upper spring seat 13, spring 11, the nut 14 of adjusting forms, pull bar 12 lower ends are fixedly connected with valve rod 17 upper ends, lower spring cup 10 center is arranged on valve gap 19 through pull bar 12 fixing seals, and coordinate with pull bar 12 motive sealings, upper spring seat 13 is fixedly mounted on pull bar 12 by the nut 14 of adjusting, spring 11 is arranged between lower spring cup 10 and upper spring seat 13, by the adjusting position of nut 14 on pull bar 12 of adjusting, adjust the elastic force of spring 11, make valve disc 2 locate opening state under medium zero pressure.
Claims (2)
1. a zero-pressure opening remote control float valve, comprise main valve and control valve, main valve comprises valve body (1), valve seat (18), valve disc (2), valve rod (17), valve gap (19), valve disc (2) is fixedly connected with valve rod (17), be positioned at valve seat (18) outlet side, valve rod (17) is fixed on diaphragm (16) center by mounting disc (15) sealing, diaphragm (16) edge seal is arranged between valve body (1) and valve gap (19), between diaphragm (16) and valve gap (19), form main valve control room (4), this main valve control room (4) is communicated with control valve, it is characterized in that valve rod (17) upper end is provided with zero-pressure opening device, this zero-pressure opening device is by pull bar (12), lower spring cup (10), upper spring seat (13), spring (11), the nut (14) of adjusting composition, pull bar (12) lower end is fixedly connected with valve rod (17) upper end, the center of lower spring cup (10) is arranged on valve gap (19) through pull bar (12) fixing seal, and coordinate with pull bar (12) motive sealing, upper spring seat (13) is fixedly mounted on pull bar (12) by the nut of adjusting (14), spring (11) is arranged between lower spring cup (10) and upper spring seat (13).
2. zero-pressure opening remote control float valve according to claim 1, is characterized in that lower spring cup (10) is fixedly mounted on the positioning disk (7) being fixedly connected with valve gap (19) upper end by back of the body cap (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110255611.7A CN102322532B (en) | 2011-08-25 | 2011-08-25 | Zero-pressure opening type remotely-controlled float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110255611.7A CN102322532B (en) | 2011-08-25 | 2011-08-25 | Zero-pressure opening type remotely-controlled float valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102322532A CN102322532A (en) | 2012-01-18 |
| CN102322532B true CN102322532B (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110255611.7A Active CN102322532B (en) | 2011-08-25 | 2011-08-25 | Zero-pressure opening type remotely-controlled float valve |
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| Country | Link |
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| CN (1) | CN102322532B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763830A (en) * | 2015-05-06 | 2015-07-08 | 江苏融通阀门机械有限公司 | Piston type hydraulic control valve |
| CN107654676A (en) * | 2017-11-13 | 2018-02-02 | 佛山市恒爱网络科技有限公司 | A kind of filtering type remote control float valve |
| CN109458463A (en) * | 2018-12-17 | 2019-03-12 | 威尔泵浦制造有限公司 | Delay Slow Close control valve with dirt eliminating function |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570657A (en) * | 1984-07-16 | 1986-02-18 | Aeroquip Corporation | Tank vent valve |
| CN201391670Y (en) * | 2009-04-16 | 2010-01-27 | 开维喜阀门集团有限公司 | Electric remote control float valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6455486A (en) * | 1987-08-22 | 1989-03-02 | Anzen Seikosha Kk | Cock with emergency shut-off function |
| JPH1055486A (en) * | 1996-08-09 | 1998-02-24 | Matsushita Refrig Co Ltd | Merchandise take-out port for automatic vending machine |
| CN201810841U (en) * | 2010-06-24 | 2011-04-27 | 费希尔久安输配设备(成都)有限公司 | Balance valve core mechanism used on gas pressure regulator |
| CN202176808U (en) * | 2011-08-25 | 2012-03-28 | 开维喜阀门集团有限公司 | Zero-pressure opening remote control float valve |
-
2011
- 2011-08-25 CN CN201110255611.7A patent/CN102322532B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4570657A (en) * | 1984-07-16 | 1986-02-18 | Aeroquip Corporation | Tank vent valve |
| CN201391670Y (en) * | 2009-04-16 | 2010-01-27 | 开维喜阀门集团有限公司 | Electric remote control float valve |
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| CN102322532A (en) | 2012-01-18 |
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