CN104806783A - Fully-opened vacuum diaphragm valve - Google Patents
Fully-opened vacuum diaphragm valve Download PDFInfo
- Publication number
- CN104806783A CN104806783A CN201510093908.6A CN201510093908A CN104806783A CN 104806783 A CN104806783 A CN 104806783A CN 201510093908 A CN201510093908 A CN 201510093908A CN 104806783 A CN104806783 A CN 104806783A
- Authority
- CN
- China
- Prior art keywords
- valve seat
- leather cup
- spring
- overcoat
- briquetting
- 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.)
- Pending
Links
Classifications
-
- 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
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/123—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm the seat being formed on the bottom of the fluid line
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
- F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention relates to a valve and discloses a fully-opened vacuum diaphragm valve which comprises a valve seat, wherein an opening is formed in the side of the valve seat; a packing leather matched with the opening is arranged on the opening; a jacket is arranged outside the packing leather on the valve seat, the jacket extrudes the periphery of the packing leather, the space formed between the packing leather and the jacket is a cavity, a spring is arranged in the cavity, the upper end of the spring is connected with the jacket, and the lower end of the spring is provided with a first pressing block. When the air pressure in the cavity is lower than the air pressure in the valve seat, the packing leather contraction convex part rises for extruding the spring, the bottom of the packing leather is separated from the sealing barrier strip, the extruded spring ejects for driving the first press block for moving downwards, the packing leather declines for matching with the sealing barrier strip for pressing tightly through the action of the spring and the first press block, and the fully-opened vacuum diaphragm valve closes; the opening and closing time of the valve is short, the structure is simple, the size is small and the fault point is less.
Description
Technical field
The present invention relates to valve, particularly relate to a kind of full-open type vacuum diaphragm valve.
Background technique
At present, vacuum drain valve, application number is the application for a patent for invention of 200810144813.2, vacuum control valve is utilized to open and close, this petcock comprises the valve seat of a setting entrance and exit, valve seat is equipped with valve bonnet, vacuum air bag is provided with in valve bonnet, air bag is equipped with briquetting, briquetting is connected by the pin that draws through leather cup with rubber cup, conveniently open and close valve, but this valve cardinal principle enters air bag by vacuum to make air bag modification compress the opening and closing realizing valve, open latus rectum less, inner leather cup has been installed and has been drawn pin easily to make leather cup stress concentrate, easily tear, internal structure is more, structure is more complicated, volume is larger, and air bag uses easy gas leakage for a long time, opening and closing time is long.
Summary of the invention
The present invention is directed to that internal structure in prior art is more, structure is more complicated, volume is larger, air bag uses easy gas leakage, valve opening and closing time long for a long time, the shortcoming that leather cup is easily torn, provide that a kind of internal structure is less, structure is simple, small volume, air bag, valve opening and closing time need not be used short, the full-open type vacuum diaphragm valve that the leather cup life-span is longer.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Full-open type vacuum diaphragm valve, comprise the valve seat being provided with import and outlet, valve seat side is provided with opening, opening is equipped with the leather cup coordinated with opening, valve seat is positioned at outside leather cup and is provided with overcoat, overcoat extruding leather cup is peripheral, put outward and be provided with pore, the space called after die cavity formed between leather cup and overcoat, is provided with spring in die cavity, spring upper end is connected with overcoat, and lower spring end is provided with the first briquetting.
As preferably, curved surface valve seat is positioned at below opening is provided with protruding sealing blend stop, and sealing blend stop coordinates with leather cup bottom.
As preferably, pore is connected with vacuum moving solenoid, vacuum moving solenoid is connected with vacuum pump.
As preferably, vacuum moving solenoid is provided with solenoid directional control valve, solenoid directional control valve is connected with a pipeline communicated with the external world.
As preferably, in overcoat, upper end is provided with the first spacing block set, is arranged with back-off outside the first spacing block set, and the first briquetting is provided with the second spacing block set, is arranged with back-off outside the second spacing block set, and back-off is inserted on spring top, and back-off is inserted in spring bottom.
As preferably, leather cup comprises high elasticity folder cloth and is coated on the rubber layer outside high elasticity folder cloth.
As preferably, valve seat is positioned at around openings and is provided with wedge, hermetic unit is arranged with outside leather cup, the 3rd annular ring that hermetic unit comprises the first annular ring be connected with leather cup periphery, the second annular ring be connected with the first annular ring is connected with the second annular ring, the second briquetting coordinated with wedge is arranged with in overcoat, overcoat is positioned at below the second briquetting and is provided with the 3rd briquetting, the second briquetting coordinates extruding first annular ring with wedge, and the 3rd briquetting coordinates extruding the 3rd annular ring with valve seat.
As preferably, valve seat is structurally symmetrical.
The present invention is owing to have employed above technological scheme, have significant technique effect: when the air pressure in die cavity is lower than air pressure in valve seat, leather cup shrinks protuberance and rises and extrusion spring, is separated bottom leather cup with sealing blend stop, the then import of valve seat and outlet, full-open type vacuum diaphragm valve is opened; When being communicated with air in die cavity, air pressure in die cavity is higher than the air pressure in valve seat, the former spring be extruded ejects, the first briquetting is driven to move down, leather cup declines and coordinates with sealing blend stop under the effect of spring, the first briquetting and compresses, import and the outlet of valve seat disconnect, and full-open type vacuum diaphragm valve is closed; By vacuum draw dirt, pneumatic control is adopted to realize effluent discharge; Valve is opened latus rectum and is greater than vacuum sewage bore, the one-body molded and inner increase high elasticity folder cloth of leather cup, long service life; Open cut-off valve only to need directly to use vacuum power source, without the need to increasing air bag; The opening and closing time of valve is short, simple structure, compact, and fault point is few.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present invention.
Fig. 2 is the structural drawing of valve seat.
Fig. 3 is sectional structure chart of the present invention.
Fig. 4 is sectional front view of the present invention.
Fig. 5 is the plan view that the present invention is arranged on vacuum sewage pipe.
Fig. 6 is the fragmentary cross-sectional view of leather cup.
The toponym that in accompanying drawing, each number designation refers to is as follows: wherein 1-valve seat, 2-leather cup, 3-the first briquetting, 4-spring, 5-overcoat, 6-lock bolt, 7-die cavity, 8-sealing blend stop, 9-pore, 10-back-off, 11-the first spacing block set, 12-the second spacing block set, 13-the second briquetting, 14-the three briquetting, 15-vacuum sewage pipe, 16-import, 17-outlet, 18-solenoid directional control valve, 19-high elasticity folder cloth, 20-rubber layer, 21-the first annular ring, 22-the second annular ring, 23-the three annular ring, 24-wedge, 25-loose joint, 26-vacuum moving solenoid, 27-vacuum closet.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Embodiment 1
Full-open type vacuum diaphragm valve, as shown in Figures 1 to 6, comprises the valve seat 1 being provided with import 16 and outlet 17, and import 16 and outlet 17 are all docked with vacuum sewage pipe 15 by loose joint 25.In order to simple picture, the structural drawing of leather cup in Fig. 3 and Fig. 42 is drawn as one deck, individual opening has been opened in valve seat 1 side, opening is equipped with the leather cup 2 coordinated with opening.Valve seat 1 is positioned at outside leather cup 2 and overcoat 5 is housed, overcoat 5 is fixedly connected with valve seat 1 by lock bolt 6, the space called after die cavity 7 formed between leather cup 2 and overcoat 5, and it is peripheral that overcoat 5 extrudes leather cup 2, ensure that overcoat 5 and the sealing of valve seat 1 joint, realize the seal in die cavity 7.Leather cup 2 protrudes towards valve seat 1 inside, curved surface valve seat 1 is positioned at below opening is provided with protruding sealing blend stop 8, sealing blend stop 8 is across the radial direction of valve seat 1, sealing blend stop 8 is from open at one end along valve seat 1 surface extending to the opening the other end, sealing blend stop 8 coordinates with leather cup 2 bottom, when being communicated with air in the die cavity 7 formed between leather cup 2 with overcoat 5, and leather cup 2 bottom crush seal blend stop 8, disconnect import 16 and the outlet 17 of valve seat 1, guarantee that valve seat 1 can not leak.Overcoat 5 has the pore 9 for entering vacuum source, spring 4 is provided with in die cavity 7, in overcoat 5, upper end is provided with the first spacing block set 11, back-off 10 is arranged with outside first spacing block set 11, spring 4 bottom is connected with the first briquetting 3, first briquetting 3 is provided with the second spacing block set 12, back-off 10 is arranged with outside second spacing block set 12, back-off 10 is inserted on spring 4 top, back-off 10 is inserted in spring 4 bottom, first briquetting 3 controls the rise and fall of leather cup 2 by the gas pressure change in the die cavity 7 that formed between overcoat 5 and leather cup 2, realizes the break-make of valve seat 1.When the air pressure in die cavity 7 is lower than the air pressure in valve seat 1, when being namely vacuum in die cavity 7, leather cup 2 shrinks protuberance and rises and extrusion spring 4, is separated bottom leather cup 2 with sealing blend stop 8, then the import 16 of valve seat 1 is communicated with outlet 17, and full-open type vacuum diaphragm valve is opened; When being communicated with air in die cavity 7, air pressure in die cavity 7 is higher than the air pressure in valve seat 1, the former spring 4 be extruded ejects, the first briquetting 3 is driven to move down, leather cup 2 declines and coordinates with sealing blend stop 8 under the effect of spring 4, first briquetting 3 and compresses, import 16 and the outlet 17 of valve seat 1 disconnect, and full-open type vacuum diaphragm valve is closed.
Pore 9 is connected with vacuum moving solenoid 26, vacuum moving solenoid 26 is connected with vacuum pump, and vacuum moving solenoid 26 is provided with solenoid directional control valve 18, solenoid directional control valve 18 is connected with a pipeline communicated with the external world.Solenoid directional control valve 18 works, and connect vacuum moving solenoid 26, solenoid directional control valve 18 does not work, and connects pipeline.
Full-open type vacuum diaphragm valve is the product component designed and developed for vacuum sewage releasing system specially, and vacuum sewage releasing system has following characteristics:
1. the foreign material dirt in sewage is more and different, and the passing rate of vacuum sewage pipe 15 wants large, and working life will be grown, and this just requires also being wanted greatly by internal diameter of membrane valve, and working life will be grown;
2. vacuum sewage releasing system self-contained vacuum source, can provide vacuum power for membrane valve opens and closes;
3. be negative-pressure vacuum in the plumbing drain of vacuum sewage releasing system, automatically must be opened sewage is sucked Water Tank by membrane valve, sewage sucks metacneme valve and automatically closes the negative-pressure vacuum degree ensured in vacuum sewage pipe 15.
Full-open type vacuum diaphragm valve is arranged on the position near vacuum closet 27 drain opening on vacuum sewage pipe 15, when going to toilet, complete chamber pot flushing water button of pressing is washed by water, after chamber pot flushing water, solenoid directional control valve 18 is energized and connects between vacuum moving solenoid 26 and die cavity 7, make in die cavity 7, to produce rapidly vacuum and leather cup 2 is pulled open rising, full-open type vacuum diaphragm valve is opened, sewage in closet is inhaled into vacuum sewage tank by vacuum sewage pipe 15, after sewage is drained, solenoid directional control valve 18 power-off vacuum power source disconnects, die cavity 7 between overcoat 5 with leather cup 2 is communicated with air, die cavity 7 degree of vacuum declines, leather cup 2 is declined under the negative pressure of vacuum suction of spring 4 elastic force and vacuum sewage pipe 15 and is extruded closing seam with the sealing blend stop 8 on the curved surface of valve seat 1, complete whole blowdown process.
The rubber layer 20 that leather cup 2 comprises high elasticity folder cloth 19 and is coated on outside high elasticity folder cloth 19, rubber layer 20 adopts natural elastomer to make, and the structural integrity of leather cup 2 is shaping, without the need to installing miscellaneous part additional, its uniform force when opening closedown is stablized, and ensure that the permanent of working life, opening is square aperture, it is large that it opens aperture, as long as ensure that dirt by vacuum sewage pipe 15 just by full-open type vacuum diaphragm valve, leather cup 2 is peripheral to be installed with the opening left-hand thread of valve seat 1, valve seat 1 is positioned at around openings and is provided with wedge 24, hermetic unit is arranged with outside leather cup 2, hermetic unit all with leather cup 2 integral structure, hermetic unit comprises the first annular ring 21 be connected with leather cup 2 periphery, the 3rd annular ring 23 that the second annular ring 22 be connected with the first annular ring 21 is connected with the second annular ring 22, first annular ring 21 is parallel with the 3rd annular ring 23, first annular ring 21 is layered on wedge 24, 3rd annular ring 23 is layered on valve seat 1, the second briquetting 13 coordinated with wedge 24 is arranged with in overcoat 5, overcoat 5 is positioned at below the second briquetting 13 and is provided with the 3rd briquetting 14, second briquetting 13 coordinates extruding first annular ring 21 with wedge 24, 3rd briquetting 14 coordinates extruding the 3rd annular ring 23 with valve seat 1, double-layer seal, guarantee the sealing of type circle, compress closely sealed with the sealing blend stop 8 of valve seat 1 bottom leather cup 2, ensure the reliable No leakage of sealing of full-open type vacuum diaphragm valve.
Valve seat 1 is structurally symmetrical, import 16 and outlet 17 can exchange installation, import 16 and outlet 17 are all docked with vacuum sewage pipe 15 by loose joint 25, docking fast and easy, valve seat 1 has the opening of square aperture, valve seat 1 below opening is provided with a protruding sealing blend stop 8, on opening, left-hand thread installs leather cup 2, leather cup 2 coordinates with sealing blend stop 8 break-make controlling import 16, export 17, not only ensure that the sealing of vacuum sewage pipe 15 but also the satisfied overall latus rectum size opening pipeline after full-open type vacuum diaphragm valve.
Overcoat 5 and valve seat 1 adopt lock bolt 6 to install and lock, the second briquetting 13 and the 3rd briquetting 14 is arranged with in overcoat 5, when lock bolt 6 is locked, second briquetting 13, the 3rd briquetting 14 compress with hermetic unit, leather cup 2 is made to seal firm No leakage with valve seat 1 and overcoat 5, ensure to be formed in the die cavity 7 between overcoat 5 and leather cup 2 and hermetically sealedly not leak, reach the degree of vacuum pulled open required for leather cup 2.
Spring 4 top tips upside down on the first spacing block set 11 on overcoat 5, first spacing block set 11 is provided with back-off 10, ensure that spring 4 can not come off, spring 4 bottom is enclosed within the second spacing block set 12 of the first briquetting 3, second spacing block set 12 is provided with back-off 10, ensures that the first briquetting 3 can not come off from spring 4, is compressed when leather cup 2 bottom rises spring 4, drive the first briquetting 3 to rise, valve seat 1 is opened; When leather cup 2 bottom declines, the degree of vacuum in the die cavity 7 between overcoat 5 and leather cup 2 reduces, and spring 4 resets, and the first briquetting 3 declines the sealing blend stop 8 leather cup 2 bottom pushed back on valve seat 1, and make leather cup 2 bottom and sealing blend stop 8 press seal, valve seat 1 is closed.
The gas pressure directly being controlled die cavity 7 inside by solenoid directional control valve 18 pulls open and closes leather cup 2, realize the break-make of the import 16 of valve seat 1, outlet 17, leather cup 2 is one-body molded without the need to Hard link, long service life, valve seat 1 latus rectum is greater than the internal diameter of vacuum sewage pipe 15, dirt is not blocked by smooth and easy, the import 16 of valve seat 1, the symmetrical installation arbitrarily of outlet 17, import 16, outlet 17 can connect import and export pipeline by loose joint 25, compact structure is small and exquisite, is specially adapted to vacuum sewage releasing system and the use of vacuum toilet toilet within kiln.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (8)
1. full-open type vacuum diaphragm valve, comprise the valve seat (1) being provided with import (16) and outlet (17), valve seat (1) side is provided with opening, the leather cup (2) coordinated with opening opening is equipped with, valve seat (1) is positioned at outside leather cup (2) and is provided with overcoat (5), overcoat (5) extruding leather cup (2) is peripheral, it is characterized in that: overcoat (5) is provided with pore (9), space called after die cavity (7) formed between leather cup (2) and overcoat (5), spring (4) is provided with in die cavity (7), spring (4) upper end is connected with overcoat (5), spring (4) lower end is provided with the first briquetting (3).
2. full-open type vacuum diaphragm valve according to claim 1, it is characterized in that: on valve seat (1), the curved surface be positioned at below opening is provided with protruding sealing blend stop (8), sealing blend stop (8) coordinates with leather cup (2) bottom.
3. full-open type vacuum diaphragm valve according to claim 1, is characterized in that: pore (9) is connected with vacuum moving solenoid (26), and vacuum moving solenoid (26) is connected with vacuum pump.
4. full-open type vacuum diaphragm valve according to claim 3, is characterized in that: vacuum moving solenoid (26) is provided with solenoid directional control valve (18), solenoid directional control valve (18) is connected with a pipeline communicated with the external world.
5. full-open type vacuum diaphragm valve according to claim 1, it is characterized in that: overcoat (5) interior upper end is provided with the first spacing block set (11), back-off (10) is arranged with outside first spacing block set (11), first briquetting (3) is provided with the second spacing block set (12), back-off (10) is arranged with outside second spacing block set (12), back-off (10) is inserted on spring (4) top, and back-off (10) is inserted in spring (4) bottom.
6. full-open type vacuum diaphragm valve according to claim 1, is characterized in that: leather cup (2) comprises high elasticity folder cloth (19) and is coated on high elasticity folder cloth (19) rubber layer outward (20).
7. full-open type vacuum diaphragm valve according to claim 1, it is characterized in that: valve seat (1) is positioned at around openings and is provided with wedge (24), leather cup is arranged with hermetic unit outside (2), hermetic unit comprises the first annular ring (21) be connected with leather cup (2) periphery, the 3rd annular ring (23) that the second annular ring (22) be connected with the first annular ring (21) is connected with the second annular ring (22), the second briquetting (13) coordinated with wedge (24) is arranged with in overcoat (5), overcoat (5) is positioned at the second briquetting (13) below and is provided with the 3rd briquetting (14), second briquetting (13) coordinates extruding first annular ring (21) with wedge (24), 3rd briquetting (14) coordinates extruding the 3rd annular ring (23) with valve seat (1).
8. full-open type vacuum diaphragm valve according to claim 1, is characterized in that: valve seat (1) is structurally symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510093908.6A CN104806783A (en) | 2015-03-03 | 2015-03-03 | Fully-opened vacuum diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510093908.6A CN104806783A (en) | 2015-03-03 | 2015-03-03 | Fully-opened vacuum diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104806783A true CN104806783A (en) | 2015-07-29 |
Family
ID=53691870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510093908.6A Pending CN104806783A (en) | 2015-03-03 | 2015-03-03 | Fully-opened vacuum diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806783A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730562A (en) * | 2018-06-20 | 2018-11-02 | 杭州电子科技大学 | It is a kind of to draw damping vacuum diaphragm valve certainly |
| CN108758039A (en) * | 2018-08-29 | 2018-11-06 | 山东中车华腾环保科技有限公司 | A kind of vacuum drain valve and toilet feces collecting system of unilateral side row pressure |
| CN108757988A (en) * | 2018-06-20 | 2018-11-06 | 杭州电子科技大学 | A kind of vacuum diaphragm valve |
| CN109083236A (en) * | 2018-08-31 | 2018-12-25 | 杭州电子科技大学 | A kind of toilet blowdown apparatus |
| CN111425659A (en) * | 2020-03-25 | 2020-07-17 | 厚力德机器（杭州）有限公司 | All-through vacuum interface diaphragm valve fatigue test system |
| CN111425619A (en) * | 2020-03-25 | 2020-07-17 | 厚力德机器（杭州）有限公司 | Distributed vacuum sewage collecting barrel and fault early warning method |
| CN113847448A (en) * | 2021-10-07 | 2021-12-28 | 上海威俊真空排水设备有限公司 | Electric vacuum blowoff valve |
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| US4717117A (en) * | 1986-12-08 | 1988-01-05 | Bendix Electronics Limited | Vacuum valve using improved diaphragm |
| JPH10196814A (en) * | 1997-01-17 | 1998-07-31 | Aisan Ind Co Ltd | Diaphragm-operated flow control valve |
| CN2733122Y (en) * | 2004-08-13 | 2005-10-12 | 万若（北京）环境工程技术有限公司 | Negative pressure controlled diaphragm valve |
| CN101012890A (en) * | 2007-02-13 | 2007-08-08 | 万若（北京）环境工程技术有限公司 | Piston type negative pressure valve used for conveying sewage water |
| CN201944330U (en) * | 2010-11-25 | 2011-08-24 | 陈方明 | Diaphragm deluge valve |
| CN102269280A (en) * | 2011-07-19 | 2011-12-07 | 万若（北京）环境工程技术有限公司 | Negative pressure valve |
| CN202158220U (en) * | 2011-03-23 | 2012-03-07 | 张正军 | Vacuum diaphragm valve |
| CN104565429A (en) * | 2015-01-05 | 2015-04-29 | 宁波耀峰液压电器有限公司 | Electric control type pressure reduction water conveying valve |
-
2015
- 2015-03-03 CN CN201510093908.6A patent/CN104806783A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4717117A (en) * | 1986-12-08 | 1988-01-05 | Bendix Electronics Limited | Vacuum valve using improved diaphragm |
| JPH10196814A (en) * | 1997-01-17 | 1998-07-31 | Aisan Ind Co Ltd | Diaphragm-operated flow control valve |
| CN2733122Y (en) * | 2004-08-13 | 2005-10-12 | 万若（北京）环境工程技术有限公司 | Negative pressure controlled diaphragm valve |
| CN101012890A (en) * | 2007-02-13 | 2007-08-08 | 万若（北京）环境工程技术有限公司 | Piston type negative pressure valve used for conveying sewage water |
| CN201944330U (en) * | 2010-11-25 | 2011-08-24 | 陈方明 | Diaphragm deluge valve |
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| CN104565429A (en) * | 2015-01-05 | 2015-04-29 | 宁波耀峰液压电器有限公司 | Electric control type pressure reduction water conveying valve |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730562A (en) * | 2018-06-20 | 2018-11-02 | 杭州电子科技大学 | It is a kind of to draw damping vacuum diaphragm valve certainly |
| CN108757988A (en) * | 2018-06-20 | 2018-11-06 | 杭州电子科技大学 | A kind of vacuum diaphragm valve |
| CN108758039A (en) * | 2018-08-29 | 2018-11-06 | 山东中车华腾环保科技有限公司 | A kind of vacuum drain valve and toilet feces collecting system of unilateral side row pressure |
| CN109083236A (en) * | 2018-08-31 | 2018-12-25 | 杭州电子科技大学 | A kind of toilet blowdown apparatus |
| CN111425659A (en) * | 2020-03-25 | 2020-07-17 | 厚力德机器（杭州）有限公司 | All-through vacuum interface diaphragm valve fatigue test system |
| CN111425619A (en) * | 2020-03-25 | 2020-07-17 | 厚力德机器（杭州）有限公司 | Distributed vacuum sewage collecting barrel and fault early warning method |
| CN111425659B (en) * | 2020-03-25 | 2021-11-23 | 艾迪机器(杭州)有限公司 | All-through vacuum interface diaphragm valve fatigue test system |
| CN111425619B (en) * | 2020-03-25 | 2022-01-14 | 艾迪机器(杭州)有限公司 | Distributed vacuum sewage collecting barrel and fault early warning method |
| CN113847448A (en) * | 2021-10-07 | 2021-12-28 | 上海威俊真空排水设备有限公司 | Electric vacuum blowoff valve |
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Application publication date: 20150729 |
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| RJ01 | Rejection of invention patent application after publication |