CN201416664Y - Pilot type diaphragm electromagnetic valve - Google Patents
Pilot type diaphragm electromagnetic valve Download PDFInfo
- Publication number
- CN201416664Y CN201416664Y CN2009200665457U CN200920066545U CN201416664Y CN 201416664 Y CN201416664 Y CN 201416664Y CN 2009200665457 U CN2009200665457 U CN 2009200665457U CN 200920066545 U CN200920066545 U CN 200920066545U CN 201416664 Y CN201416664 Y CN 201416664Y
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- Prior art keywords
- valve
- diaphragm
- center main
- valve seat
- body part
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- Expired - Lifetime
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Abstract
The utility model discloses a pilot type diaphragm electromagnetic valve which comprises a valve body, a valve seat, a valve diaphragm and a pilot valve, wherein the valve diaphragm comprises a centermain body part of a switch valve seat and an elastic supporting part surrounding the main body part, the edge of the lower end surface of the center main body part is matched with the valve port endsurface of the valve seat in a sealing way, a frustum salient is arranged on the lower end surface of the center main body part, and a valve port of the valve seat is a conical port which can be matched with the frustum salient. Because the pilot type diaphragm electromagnetic valve has the frustum salient arranged on the lower end surface of the center main body part, when the electromagnetic valve is closed, the frustum salient can fulfill the functions of flow discharge and peak clipping, lowers an inlet water hammer, efficiently solves the problems that the valve is suddenly closed to leadthe water pressure of a subsequent water flow to be fast increased under the action of inertia, and the valve and a pipe wall are damaged, and prolongs the service life of the diaphragm at the same time.
Description
Technical field
The utility model relates to a kind of solenoid valve, particularly a kind of leading type diaphragm solenoid valve.
Background technique
Guide electromagnetic valve is a kind of solenoid valve relatively more commonly used in hydraulic system and air-channel system.Existing guide electromagnetic valve generally comprises the main valve that is provided with input channel and output channel, the control pilot hole is opened, the pilot valve of closure, the valve seat that is communicated with input channel and output channel, the diaphragm of this valve seat of switch, diaphragm comprises the center main part of switch valve seat and the elastic support part of main body periphery, the elastic support portion edge sealing and fixing of diaphragm is on valve body, main valve is divided into two chambers up and down, have an aperture on the supporting part and be communicated with two chambers up and down, the center main portion of diaphragm and the sealing valve port of valve seat cooperate.Therefore the path between input channel and the output channel can be closed suddenly when diaphragm is closed, is easy to produce in fluid line so-called " water hammer effect ".
Water hammer effect is a kind of saying of image, and it is meant when the valve that open and closes suddenly or feed water pump stops, and is too quick because of termination of pumping or closing valve, makes the speed generation rapid change of water, and current mainly are that valve or pump can produce a pressure to valve and tube wall.Water hammer effect has great destructiveness: pressure is too high, will cause breaking of pipe, otherwise pressure is crossed the low collapsing that can cause pipe again, also can damage valve and fixed block, makes ductwork pressure reduction etc.
The model utility content
At above-mentioned the deficiencies in the prior art, the utility model provides a kind of leading type diaphragm solenoid valve that prevents water hammer effect.
The embodiment of the leading type diaphragm solenoid valve that the utility model provides is achieved through the following technical solutions:
A kind of leading type diaphragm solenoid valve, comprise valve body, valve seat, valve film, pilot valve, described valve film comprises the center main portion of the described valve seat of switch and surrounds the elasticity support part of this main part, described center main subordinate's end face edge cooperates with the valve port end face seal of described valve seat, described diaphragm center main subordinate end face has a taper type projection, and the valve port of described valve seat is the taper mouth that can cooperate with above-mentioned taper type projection
According to above-mentioned major character, spring is equipped with at the back side of the center main portion of described diaphragm.
Technique scheme has following beneficial effect: because this leading type diaphragm solenoid valve diaphragm center main subordinate end face has a taper type projection, therefore when solenoid closure, the taper type projection can play the effect of earial drainage peak clipping, reduced the import water hammer, having solved valve effectively closes suddenly, follow-up current are increased rapidly at the action of inertia launching stress, destroy the problem of valve and tube wall, prolonged diaphragm working life simultaneously.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification.Below with preferred embodiment of the present utility model, and conjunction with figs. describes in detail.
Description of drawings
Fig. 1 is the leading type diaphragm electromagnetic valve structure schematic representation that the utility model embodiment provides.
Fig. 2 is the local enlarged diagram of Fig. 1 center main portion and valve seat cooperation place.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
As Fig. 1, shown in 2, as an embodiment of the present utility model, this leading type diaphragm solenoid valve comprises the valve body 1 that is provided with output channel 11 and input channel 12, the valve seat 3 that connects output channel 11 and input channel 12 is arranged in the valve body, the control guide opens in 8 holes, closed pilot valve 2, the valve film of switch valve seat 3, this valve film comprises the center main portion 4 of the described valve seat of switch and surrounds the elasticity support part 5 of this main part, the edge sealing and fixing of elasticity support part 5 is on valve body, valve body is divided into two chambers up and down, have an aperture 6 above the elasticity support part 5, making up and down, two chambers are communicated with, the edge 41 of the lower end surface of the center main portion 4 of diaphragm is sealed and matched with the valve port end face 31 of valve seat, and there is a taper type projection 42 lower end surface of center main portion, and the valve port 32 of valve seat 3 is conical mouthful that can cooperate with taper type projection 42.
During this leading type diaphragm solenoid valve work, when pilot valve 2 pilot hole 8 is opened, the upper chamber of valve body begins pressure release, and upper cavity pressure descends rapidly, forms pressure reduction between the main valve upper and lower cavity, relies on the pressure difference of medium to promote to move valve open in the diaphragm center main portion 4.When pilot valve 2 was closed pilot hole 8, flowing medium entered valve body upper chamber rapidly from aperture 6, made the up and down pressure balance of chamber of valve body, and the center main portion 4 of diaphragm moves down under the effect of spring 7, makes valve closing.Because this leading type diaphragm solenoid valve diaphragm center main subordinate end face has a taper type projection, therefore when solenoid closure, the taper type projection can play the effect of earial drainage peak clipping, reduced the import water hammer, having solved valve effectively closes suddenly, make follow-up current rapidly increase and then destroy the problem of valve and tube wall, prolonged diaphragm working life simultaneously at the action of inertia launching stress.
Technique scheme just to the utility model embodiment's explanation, should not be construed as restriction of the present utility model, and any change that all those skilled in the art make according to thought of the present utility model is all within the novel protection domain of this reality.
Claims (2)
1. leading type diaphragm solenoid valve, comprise valve body (1), pilot valve (2), valve seat (3) and valve film, described valve film comprises the center main portion (4) of the described valve seat of switch and surrounds the elasticity support part (5) of this main part, described center main subordinate's end face edge (41) is sealed and matched with the valve port end face (31) of described valve seat, it is characterized in that described diaphragm center main subordinate end face has a taper type projection (42), the valve port of described valve seat (32) is the taper mouth that can cooperate with above-mentioned taper type projection.
2. a kind of leading type diaphragm solenoid valve as claimed in claim 1 is characterized in that spring is equipped with at the back side of the center main portion of described diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200665457U CN201416664Y (en) | 2009-01-06 | 2009-01-06 | Pilot type diaphragm electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200665457U CN201416664Y (en) | 2009-01-06 | 2009-01-06 | Pilot type diaphragm electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201416664Y true CN201416664Y (en) | 2010-03-03 |
Family
ID=41793082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200665457U Expired - Lifetime CN201416664Y (en) | 2009-01-06 | 2009-01-06 | Pilot type diaphragm electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201416664Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235538A (en) * | 2010-04-29 | 2011-11-09 | 浙江三花股份有限公司 | Magnetic valve |
| CN105127022A (en) * | 2015-09-25 | 2015-12-09 | 林夏斌 | Intelligent gear-shifting top-spray shower head |
| CN106286951A (en) * | 2016-08-29 | 2017-01-04 | 贵州新安航空机械有限责任公司 | A kind of electromagnetic valve diaphragm mounting structure |
| WO2020043611A1 (en) * | 2018-08-28 | 2020-03-05 | Grohe Ag | Rose for a sanitary fitting comprising an actuating element for a plurality of membrane valves |
| US11306844B2 (en) | 2017-06-26 | 2022-04-19 | Lixil Corporation | Pilot solenoid valve |
-
2009
- 2009-01-06 CN CN2009200665457U patent/CN201416664Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235538A (en) * | 2010-04-29 | 2011-11-09 | 浙江三花股份有限公司 | Magnetic valve |
| CN102235538B (en) * | 2010-04-29 | 2015-04-08 | 浙江三花股份有限公司 | Magnetic valve |
| CN105127022A (en) * | 2015-09-25 | 2015-12-09 | 林夏斌 | Intelligent gear-shifting top-spray shower head |
| CN106286951A (en) * | 2016-08-29 | 2017-01-04 | 贵州新安航空机械有限责任公司 | A kind of electromagnetic valve diaphragm mounting structure |
| US11306844B2 (en) | 2017-06-26 | 2022-04-19 | Lixil Corporation | Pilot solenoid valve |
| WO2020043611A1 (en) * | 2018-08-28 | 2020-03-05 | Grohe Ag | Rose for a sanitary fitting comprising an actuating element for a plurality of membrane valves |
| CN112449663A (en) * | 2018-08-28 | 2021-03-05 | 高仪股份公司 | Spray head for a sanitary fitting having an actuating element for a plurality of diaphragm valves |
| CN112449663B (en) * | 2018-08-28 | 2022-11-18 | 高仪股份公司 | Spray head for a sanitary fitting having an actuating element for a plurality of diaphragm valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FESTO (CHINA) AUTOMATION MANUFACTURING LTD. Free format text: FORMER OWNER: FESTO (CHINA) LTD. Effective date: 20121217 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121217 Address after: 201206 Shanghai City Jingqiao export processing zone of Pudong New Area (South) Long Hu Road No. 143 Patentee after: FESTO (China) automation manufacturing Co. Ltd. Address before: 201206 Jinqiao Road, Pudong New Area Jinqiao Export Processing Zone, Shanghai, 1156 Patentee before: FESTO (China) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100303 |
|
| CX01 | Expiry of patent term |