CN104747780B - The diaphragm valve of low-pressure opening - Google Patents
The diaphragm valve of low-pressure opening Download PDFInfo
- Publication number
- CN104747780B CN104747780B CN201510142300.8A CN201510142300A CN104747780B CN 104747780 B CN104747780 B CN 104747780B CN 201510142300 A CN201510142300 A CN 201510142300A CN 104747780 B CN104747780 B CN 104747780B
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- Prior art keywords
- port
- valve
- control chamber
- low
- pressure opening
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
Abstract
The invention provides a kind of diaphragm valve of low-pressure opening.According to the diaphragm valve of the low-pressure opening of the present invention, including：Valve body, valve body is provided with the entrance cavity and outlet plenum being connected；Bonnet, is arranged on valve body；Seal receptacle, is arranged between entrance cavity and outlet plenum；Barrier film, is arranged between valve body and bonnet, and the first control chamber is formed between barrier film and bonnet；Valve pocket seat, is arranged in valve body, forms the second control chamber between barrier film and valve pocket seat, barrier film is connected by valve rod with main valve disc, and valve pocket cover for seat is located on valve rod, main valve disc and seal receptacle fitted seal；Waterway converter, it is located at the outside of valve body, and waterway converter is connected with the first control chamber, the second control chamber and entrance cavity respectively.By the way that the first control chamber, the second control chamber and entrance cavity are connected with waterway converter respectively, the perfusion and emptying of the first control chamber and the second control chamber is controlled to act, under low pressure operating mode, being turned on and off for diaphragm valve is realized, the current for improving diaphragm valve pass through efficiency.
Description
Technical field
The present invention relates to diaphragm valve field, especially, it is related to a kind of diaphragm valve of low-pressure opening.
Background technology
At present, diaphragm valve is to be connected to an elastic diaphragm on compression piece, and compression piece is operated by valve rod and moved up and down,
When compression piece rises, diaphragm is just held high, forms path, and when compression piece declines, diaphragm is pressed against on valve body, and valve is closed.This valve
Suitable for cut-offfing, throttling.
In field irrigation, the hydraulic pressure of irrigation water is generally 1400kP or so, because hydraulic pressure is relatively low, existing diaphragm valve without
Method, which is realized, opens or opens incomplete, causes field irrigation inefficiency.
The content of the invention
Present invention aims at a kind of diaphragm valve of low-pressure opening is provided, it can not be opened with solving diaphragm valve because hydraulic pressure is low
Or open the technical problem of the inefficiency not exclusively caused.
The above-mentioned purpose of the present invention can be realized using following technical proposal：
The present invention provides a kind of diaphragm valve of low-pressure opening, including valve body, and valve body is provided with the entrance cavity being connected and gone out
Oral cavity；Bonnet, is arranged on valve body；Seal receptacle, is arranged between entrance cavity and outlet plenum；Barrier film, is arranged on valve body and bonnet
Between, the first control chamber is formed between barrier film and bonnet；Valve pocket seat, is arranged in valve body, and the is formed between barrier film and valve pocket seat
Two control chambers, barrier film is connected by valve rod with main valve disc, and valve pocket cover for seat is located on valve rod, and main valve disc coordinates close with seal receptacle
Envelope；Waterway converter, its be located at valve body outside, waterway converter respectively with the first control chamber, the second control chamber and entrance cavity
It is connected, waterway converter includes housing and the conversion body being arranged in housing, waterway converter also includes drive screw, driving
Screw rod is connected with conversion body driving.
Further, the diaphragm valve of low-pressure opening also includes micropump, and micropump is controlled by waterway converter and first
Chamber or the second control chamber are connected.
Further, the diaphragm valve of low-pressure opening also includes water flow generator, import and the entrance cavity phase of water flow generator
Connection.
Further, the outlet of water flow generator is connected with outlet plenum.
Further, it is provided with controlling switch between the import of water flow generator and entrance cavity.
Further, it is provided with controlling switch between the import of water flow generator and entrance cavity.
Further, the both sides of barrier film are provided with drive disk, and drive disk is set on valve rod.
Further, conversion body is slidably disposed in housing；The side of housing is provided with first port and the second end
Mouthful, its opposite side is provided with the 3rd port and the 4th port, and first port is connected with entrance cavity, the 3rd port and the first control
Chamber is connected, and the 4th port is connected with the second control chamber；In conversion body provided with two first passages arranged in a crossed manner with it is parallel
Set two second channels, first port be connected by first passage with the 4th port and second port pass through it is another
In the state of individual first passage and the 3rd port are connected, main valve disc is separated with seal receptacle；It is logical by second in first port
Road with the state of the 3rd port is connected and second port is connected by another second channel with the 4th port, main valve
Disk and seal receptacle palette.
Further, conversion body is rotatably arranged in housing；First port, second port, are provided with housing
Three ports and the 4th port, first port are oppositely arranged with second port, and the 3rd port is oppositely arranged with the 4th port, first end
Mouth is connected with entrance cavity, and the 3rd port is connected with the first control chamber, and the 4th port is connected with the second control chamber；Conversion body
Two arc third channels diametrically are inside provided with, in first port and the 4th port and second port and the 3rd end
In the state of mouth is connected by two arc third channels respectively, main valve disc is separated with seal receptacle；In first port and
In the state of three ports and second port are connected by two arc third channels respectively with the 4th port, main valve disc with
Seal receptacle palette.
The features of the present invention and advantage are：
By the way that the first control chamber, the second control chamber and entrance cavity of valve body are connected with waterway converter respectively, control
Perfusion and the emptying action of first control chamber and the second control chamber, under low pressure operating mode, realize being turned on and off for diaphragm valve, carry
The current of high diaphragm valve pass through efficiency.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the first embodiment schematic diagram of the diaphragm valve of the low-pressure opening of the present invention；
Fig. 2 is the second embodiment schematic diagram of the diaphragm valve of the low-pressure opening of the present invention；
Fig. 3 is the 3rd embodiment schematic diagram of the diaphragm valve of the low-pressure opening of the present invention；
Fig. 4 is the fourth embodiment schematic diagram of the diaphragm valve of the low-pressure opening of the present invention；
Fig. 5 for the present invention low-pressure opening diaphragm valve waterway converter first embodiment schematic diagram, this after
Film valve is in opening；
Fig. 6 for the present invention low-pressure opening diaphragm valve waterway converter first embodiment schematic diagram, this after
Film valve is closed；
Fig. 7 for the present invention low-pressure opening diaphragm valve waterway converter second embodiment schematic diagram, this after
Film valve is in opening；
Fig. 8 for the present invention low-pressure opening diaphragm valve waterway converter second embodiment schematic diagram, this after
Film valve is closed；
Fig. 9 for the present invention low-pressure opening diaphragm valve waterway converter 3rd embodiment schematic diagram, this after
Film valve is in opening；And
Figure 10 for the present invention low-pressure opening diaphragm valve waterway converter 3rd embodiment schematic diagram, this after
Film valve is closed.
Reference in accompanying drawing is as follows：10th, valve body；11st, entrance cavity；12nd, outlet plenum；13rd, bonnet；14th, seal receptacle；
15th, valve pocket seat；21st, barrier film；22nd, valve rod；23rd, main valve disc；24th, drive disk；31st, the first control chamber；32nd, the second control chamber；40、
Micropump；50th, waterway converter；51st, conversion body；511st, first passage；512nd, second channel；513rd, third channel；521st,
Single port；522nd, second port；523rd, the 3rd port；524th, the 4th port；53rd, drive screw；54th, housing；60th, generating power by water current
Machine；61st, controlling switch；62nd, control module.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, the present invention provides a kind of diaphragm valve of low-pressure opening, including valve body 10, valve body 10 is provided with connected
Logical entrance cavity 11 and outlet plenum 12；Bonnet 13, is arranged on valve body 10；Seal receptacle 14, is arranged on entrance cavity 11 and outlet plenum
Between 12；Barrier film 21, is arranged between valve body 10 and bonnet 13, and the first control chamber 31 is formed between barrier film 21 and bonnet 13；Valve
Chamber seat 15, valve pocket seat 15 is arranged in valve body 10, forms the second control chamber 32 between barrier film 21 and valve pocket seat 15, barrier film 21 passes through
Valve rod 22 is connected with main valve disc 23, and valve pocket seat 15 is set on valve rod 22, main valve disc 23 and the fitted seal of seal receptacle 14；Water route
Converter 50, its be located at valve body 10 outside, waterway converter 50 respectively with the first control chamber 31, the second control chamber 32 and entrance
Chamber 11 is connected.
According to one embodiment of the invention, the both sides of barrier film 21 are provided with drive disk 24, and drive disk 24 is set in valve rod
On 22, drive disk 24 can ensure the bonding strength of valve rod 22 and barrier film 21.When needing to open diaphragm valve, waterway converter is adjusted
50, the entrance cavity 11 of valve body 10 is connected by waterway converter 50 with the second control chamber 32, the first control chamber 31 passes through water
Road converter 50 is connected with external equipment, and the external equipment can be tank or other connecting lines.Irrigated from entrance cavity 11
Liquid through waterway converter 50 flow into the second control chamber 32 in, now the liquid in the first control chamber 31 passes through waterway converter
50 are exported outside valve body 10, and barrier film 21 is with the increase of the volume of the second control chamber 32 to the lateral movement of the first control chamber 31 1, and it drives
Valve rod 22 and main valve disc 23 depart from seal receptacle 14, and now the entrance cavity 11 of valve body 10 is connected with outlet plenum 12, and the diaphragm valve is opened
Open；When needing to close diaphragm valve, waterway converter 50 is adjusted, the entrance cavity 11 of valve body 10 is passed through waterway converter 50 and the
One control chamber 31 is connected, and the second control chamber 32 is connected by waterway converter 50 with external equipment, is irrigated from entrance cavity 11
Liquid through waterway converter 50 flow into the first control chamber 31 in, now the liquid in the second control chamber 32 passes through waterway converter
In 50 outside export valve body 10, barrier film 21 is with the increase of the volume of the first control chamber 31 to the lateral movement of the second control chamber 32 1, and it drives
Valve rod 22 and main valve disc 23 are tightly connected cooperation with seal receptacle 14, and now the entrance cavity 11 and outlet plenum 12 of valve body 10 are isolated,
The diaphragm valve is closed.
The diaphragm valve of the low-pressure opening of the present invention, by setting waterway converter 50, flows through the entrance cavity 11 of valve body 10
Liquid is injected separately into the first control chamber 31 or the second control chamber 32, so as to control the first control chamber 31 or the second control chamber 32
Evacuate and perfusion operation, and then reach and promote barrier film 21 to move, departed from or gluing, sealing with band ovable valve stem 22 and main valve disc 23
Seat 14, control entrance cavity 11 is connected with outlet plenum 12, to make diaphragm valve realize unlatching in the case of low pressure.The present invention's is low
The diaphragm valve opened is pressed off, is the diaphragm valve applied in a kind of field irrigation, it can be in anhydrous flowing pressure or water flow pressure very little
In the case of, open barrier film 21 by waterway converter 50, so that field current pass through the diaphragm valve of the low-pressure opening.
Specifically, as shown in Fig. 5 to Fig. 8, waterway converter 50 of the invention is by housing 54 and is slidably disposed on shell
Conversion body 51 in body 54 is constituted, and conversion body 51 is ceramic conversion body, and its side is connected with drive screw 53, wherein, water route turns
The housing 54 of parallel operation 50 and conversion body 51 are cuboid, and the side of housing 54 is provided with first port 521 and second port
522, its opposite side is provided with the 3rd port 523 and the 4th port 524, and first port 521 is connected with entrance cavity 11, the second end
Second port 522 (for example, as shown in Fig. 2 can be connected, by the emptying of the auxiliary of micropump 40 simultaneously by the emptying of mouth 522 with micropump 40
Intestine evacuation velocity can be increased), the 3rd port 523 is connected with the first control chamber 31, and the 4th port 524 is connected with the second control chamber 32
It is logical；Provided with two first passages 511 arranged in a crossed manner and two second channels 512 be arrangeding in parallel in conversion body 51.Work as needs
When opening diaphragm valve, drive screw 53 is rotated, it is slided along linear drives conversion body 51 in housing 54, when conversion body 51
Two first passages 511 are respectively communicated with the port 524 of first port 521 and the 4th and the port 523 of second port 522 and the 3rd
In the state of, now, the first port 521 through housing 54 is entered from the current of perfusion in the entrance cavity 11 of valve body 10, by the
One passage 511 flows into the 4th port 524, and then flows into the second control chamber 32, increases the volume of the second control chamber 32, and first
Liquid in control chamber 31 can enter the 3rd port 523 of housing 54, be flowed into by another first passage 511 of conversion body 51
Second port 522, by second port 522 by current exits valve body 10, in the process, barrier film 21 will be with the second control chamber
The increase of 32 volumes and to the lateral movement of the first control chamber 31 1, barrier film 21 is moved with ovable valve stem 22 and main valve disc 23, makes main valve disc
23 depart from seal receptacle 14, realize the unlatching of diaphragm valve；When needing to close diaphragm valve, drive screw 53 is rotated, makes it along straight
Line drives conversion body 51 to be slided in housing 54, when two second channels 512 of conversion body 51 are respectively communicated with the He of first port 521
In the state of 3rd port 523 and the port 524 of second port 522 and the 4th, now, the water from the entrance cavity 11 of valve body 10
Stream enters the first port 521 through housing 54, flows into the 3rd port 523 by second channel 512, and then flow into the first control
In chamber 31, increase the volume of the first control chamber 31, and the liquid in the second control chamber 32 can enter the 4th port of housing 54
524, second port 522 is flowed into by another second channel 512 of conversion body 51, current are discharged by second port 522,
In the process, barrier film 21 by with the increase of the volume of the first control chamber 31 to the lateral movement of the second control chamber 32 1, barrier film 21
Band ovable valve stem 22 and main valve disc 23 are moved, and are made main valve disc 23 and the gluing, sealing of seal receptacle 14, are realized the closing of diaphragm valve.
The 26S Proteasome Structure and Function of embodiment and the embodiment shown in Fig. 7 and Fig. 8 shown in Fig. 5 and Fig. 6 is essentially identical, difference
Place is that glide direction of the conversion body 51 in housing 54 is different.In the embodiment shown in Fig. 5 and Fig. 6, conversion body 51 exists
Along linear slide in the horizontal direction of housing 54；In the embodiment shown in Fig. 7 and Fig. 8, conversion body 51 is vertical housing 54
Along linear slide on direction.Conversion bodies 51 of the Fig. 5 into embodiment illustrated in fig. 8 is under the driving of drive screw 53 in housing 54
Along straight reciprocating motion, drive screw 53 is all driven by motor, and its speed of service and motion can be accurately controlled by controller
Position.
As shown in Figure 9 and Figure 10, in another embodiment of the invention, the waterway converter 50 is by housing 54 and rotatable
The conversion body 51 that ground is arranged in housing 54 is constituted, and the middle part of conversion body 51 is connected with drive screw 53, and the drive screw 53 can
Conversion body 51 is driven to be rotated in housing 54.Wherein, the housing 54 of waterway converter 50 and conversion body 51 are cylindrical；Water
First port 521, second port 522, the 3rd port 523 and the 4th port 524 are provided with the housing 54 of road converter 50, the
Single port 521, second port 522, the 3rd port 523 and the 4th port 524 are arranged on same circumference, first port 521 with
Second port 522 is oppositely arranged, and the 3rd port 523 is oppositely arranged with the 4th port 524, first port 521 and the phase of entrance cavity 11
Connection, second port 522 is emptied (for example, as shown in Fig. 2 second port 522 can be connected with micropump 40, passing through micropump
40 auxiliary empty and can increase intestine evacuation velocity), the 3rd port 523 is connected with the first control chamber 31, the 4th port 524 and second
Control chamber 32 is connected；Two arc third channels 513 diametrically, two arc third channels are provided with conversion body 51
513 concave towards the pivot center of conversion body 51 and are symmetrical arranged simultaneously.Operation principle, the process of waterway converter 50 in the embodiment
It is identical with operation principle, the process of the waterway converter 50 in above-described embodiment, it will not be repeated here.
As shown in Figure 3,4, in another embodiment of the invention, itself and the diaphragm valve of the low-pressure opening of above-described embodiment
Structure, operation principle are essentially identical, except that, the diaphragm valve of the low-pressure opening also includes water flow generator 60, current hair
The import of motor 60 is connected with entrance cavity 11.Specifically, control is provided between the import of water flow generator 60 and entrance cavity 11
System switch 61, the controlling switch 61 controls it to be turned on and off by a control module 62, and then controls water flow generator 60
It is turned on and off.After the diaphragm valve of low-pressure opening is opened, controlling switch 61 is opened, the partially liq flowed into entrance cavity 11 can
Water flow generator 60 is flowed through, water flow generator 60 is generated electricity, the electric energy that the water flow generator 60 is sent can provide field irrigation
In the electricity consumptions of other devices use, the use of the water flow generator 60 further increases the utilization rate of current in field irrigation.
Further, the outlet of water flow generator 60 can be connected with outlet plenum 12, be returned with flowing through the water after water flow generator 60
It flow in diaphragm valve, the Water Sproading after generating is utilized.Certainly, in other examples, the outlet of the water flow generator 60
It can also be connected to outside diaphragm valve and carry out emptying process, or multiple outlets are connected to by multiple check valves and be emptied, or
Person is for the diaphragm valve of multiple exit, and the outlet of the water flow generator 60 may be connected to the barrier film for being not turned on or opening
The downstream position of valve, is used with providing multipath stream current irrigation.
Several embodiments of the present invention are the foregoing is only, those skilled in the art is according to application documents disclosure
Various changes or modification can be carried out to the embodiment of the present invention without departing from the spirit and scope of the present invention.
Claims (9)
1. a kind of diaphragm valve of low-pressure opening, it is characterised in that including：
Valve body (10), the valve body (10) is provided with the entrance cavity (11) and outlet plenum (12) being connected；
Bonnet (13), is arranged on the valve body (10)；
Seal receptacle (14), is arranged between the entrance cavity (11) and the outlet plenum (12)；
Barrier film (21), is arranged between the valve body (10) and the bonnet (13), the barrier film (21) and the bonnet (13)
Between form the first control chamber (31)；
Valve pocket seat (15), is arranged in the valve body (10), and second is formed between the barrier film (21) and valve pocket seat (15)
Control chamber (32), the barrier film (21) is connected by valve rod (22) with main valve disc (23), and the valve pocket seat (15) is set in institute
State on valve rod (22), the main valve disc (23) and the seal receptacle (14) fitted seal；
Waterway converter (50), it is located at the outside of the valve body (10), and the waterway converter (50) is respectively with described first
Control chamber (31), second control chamber (32) are connected with the entrance cavity (11), and the waterway converter (50) includes shell
Body (54) and the conversion body (51) being arranged in the housing (54), the waterway converter (50) also include drive screw
(53), the drive screw (53) is connected with the conversion body (51) driving.
2. the diaphragm valve of low-pressure opening according to claim 1, it is characterised in that described micro- also including micropump (40)
Type pump (40) is connected by the waterway converter (50) with first control chamber (31) or second control chamber (32).
3. the diaphragm valve of low-pressure opening according to claim 1 or 2, it is characterised in that also including water flow generator (60),
The import of the water flow generator (60) is connected with the entrance cavity (11).
4. the diaphragm valve of low-pressure opening according to claim 3, it is characterised in that the outlet of the water flow generator (60)
It is connected with the outlet plenum (12).
5. the diaphragm valve of low-pressure opening according to claim 3, it is characterised in that the import of the water flow generator (60)
Controlling switch (61) is provided between the entrance cavity (11).
6. the diaphragm valve of low-pressure opening according to claim 4, it is characterised in that the import of the water flow generator (60)
Controlling switch (61) is provided between the entrance cavity (11).
7. the diaphragm valve of low-pressure opening according to claim 1, it is characterised in that the both sides of the barrier film (21) are respectively provided with
There is drive disk (24), the drive disk (24) is set on the valve rod (22).
8. the diaphragm valve of low-pressure opening according to claim 1, it is characterised in that the conversion body (51) slideably sets
Put in the housing (54)；The side of the housing (54) is provided with first port (521) and second port (522), and its is another
Side is provided with the 3rd port (523) and the 4th port (524), and the first port (521) is connected with the entrance cavity (11)
Logical, the 3rd port (523) is connected with first control chamber (31), the 4th port (524) and the described second control
Chamber (32) processed is connected；Two first passages (511) and be arranged in parallel two arranged in a crossed manner are provided with the conversion body (51)
Individual second channel (512), is connected in the first port (521) by the first passage (511) with the 4th port (524)
What logical and described second port (522) was connected by first passage another described (511) with the 3rd port (523)
Under state, the main valve disc (23) is separated with the seal receptacle (14)；It is logical by described second in the first port (521)
Road (512) is connected with the 3rd port (523) and the second port (522) passes through second channel another described
(512) in the state of being connected with the 4th port (524), the main valve disc (23) and the seal receptacle (14) sealing paste
Close.
9. the diaphragm valve of low-pressure opening according to claim 1, it is characterised in that the conversion body (51) rotationally sets
Put in the housing (54)；First port (521), second port (522), the 3rd port are provided with the housing (54)
(523) and the 4th port (524), the first port (521) is oppositely arranged with the second port (522), the 3rd end
Mouthful (523) are oppositely arranged with the 4th port (524), and the first port (521) is connected with the entrance cavity (11), and described the
Three ports (523) are connected with first control chamber (31), the 4th port (524) and the second control chamber (32) phase
Connection；Two arc third channels (513) diametrically are provided with the conversion body (51), in the first port
And the 4th port (524) and the second port (522) and the 3rd port (523) pass through two respectively (521)
In the state of arc third channel (513) is connected, the main valve disc (23) is separated with the seal receptacle (14)；Described
Single port (521) and the 3rd port (523) and the second port (522) and the 4th port (524) are led to respectively
Cross in the state of two arc third channels (513) are connected, the main valve disc (23) and the seal receptacle (14) palette.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142300.8A CN104747780B (en) | 2015-03-27 | 2015-03-27 | The diaphragm valve of low-pressure opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142300.8A CN104747780B (en) | 2015-03-27 | 2015-03-27 | The diaphragm valve of low-pressure opening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104747780A CN104747780A (en) | 2015-07-01 |
| CN104747780B true CN104747780B (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510142300.8A Active CN104747780B (en) | 2015-03-27 | 2015-03-27 | The diaphragm valve of low-pressure opening |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114672B (en) * | 2015-09-16 | 2017-12-19 | 乐清市兴丰电子厂 | Novel valve |
| WO2020243920A1 (en) * | 2019-06-05 | 2020-12-10 | 宁津美华工业有限公司 | Main valve of y-shaped deluge valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5967176A (en) * | 1998-04-17 | 1999-10-19 | Blann; Brian David Francis | Automatic flow control valve with variable set-points |
| CN101608692B (en) * | 2009-07-24 | 2011-01-26 | 长安大学 | Manual, electrical and hydraulic three-function Y-shaped constant-pressure flow regulating valve with multiple spray holes |
| CN201650709U (en) * | 2010-04-29 | 2010-11-24 | 上海东方威尔阀门有限公司 | Hydraulic control valve |
| CN203614754U (en) * | 2013-06-26 | 2014-05-28 | 江汉大学 | Combined normally closed valve with electromagnetic diaphragm type cylinder body |
| CN204611053U (en) * | 2015-03-27 | 2015-09-02 | 张凡 | The membrane valve of low-pressure opening |
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| CN104747780A (en) | 2015-07-01 |
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Effective date of registration: 20181224 Address after: Room 318, Huibin Building, 111 South Hunan Road, Shuimogou District, Urumqi City, Xinjiang Uygur Autonomous Region Patentee after: Xinjiang Yuanda Technology Co., Ltd. Address before: 830000 No. 585 Youyou North Road, Urumqi City, Xinjiang Uygur Autonomous Region Patentee before: Zhang Fan |