CN202392251U - Two-way flow solenoid valve - Google Patents
Two-way flow solenoid valve Download PDFInfo
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- CN202392251U CN202392251U CN2011204907240U CN201120490724U CN202392251U CN 202392251 U CN202392251 U CN 202392251U CN 2011204907240 U CN2011204907240 U CN 2011204907240U CN 201120490724 U CN201120490724 U CN 201120490724U CN 202392251 U CN202392251 U CN 202392251U
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Abstract
The utility model provides a two-way flow solenoid valve. The solenoid valve comprises a valve body, a diaphragm module, a valve deck and a pilot valve module, wherein the valve body is provided with a medium inlet, a medium outlet and a main valve port between the medium inlet and the medium outlet; the diaphragm module is provided with a diaphragm covering the main valve port; the valve deck is arranged above the main valve port of the valve body; a main chamber is formed between the valve deck and the diaphragm; the valve deck is also provided with a pilot valve port; the pilot valve module is arranged above the pilot valve port; a pilot chamber is formed between the pilot valve module and the valve deck; the main chamber is communicated with the pilot chamber by a discharge passage; the pilot valve port is communicated with the medium outlet by a one-way pressure relief passage; and the one-way pressure relief passage is internally provided with a one-way valve which opens the one-way pressure relief passage when a medium flows in the forward direction and closes the one-way pressure relief passage when the medium flows in the reverse direction. The two-way flow solenoid valve provided by the utility model has the following beneficial effect: as the pilot valve module and the diaphragm are respectively arranged in the pilot chamber and the main chamber, the excessive impacts of system medium fluctuation because of low natural vibration frequency of the diaphragm module can be reduced.
Description
Technical field
The utility model relates to the solenoid valve technical field, especially, relates to a kind of two-way circulated solenoid valve.
Background technique
A kind of common two-way circulated solenoid valve of the prior art; Be directly on common unidirectional electrical magnet valve the parallel connection one-way valve, make its circulating direction opposite with the solenoid valve circulating direction, with the realization effect of two-way circulating; But it is bigger that the overall structure of this kind product needs, and cost is higher.
As shown in Figure 1; Also has a kind of two-way circulated solenoid valve in the existing technology; This two-way circulated solenoid valve has the cavity that is formed with valve body 9 ' assembling by valve gap 3 ' and is installed in the electromagnetic priority valve 1 ' on the valve gap 3 '; Valve body 9 ' two ends are connected with media outlet connecting tube 13 ' with medium inlet connecting branch 10 ' respectively; In this cavity, be provided with the primary valve 11 ' between medium inlet and outlet; Over against primary valve 10 ' diaphragm (piston) assembly 6 ' that can produce displacement is set cavity is divided into upper chamber 5 ' and lower chambers 8 ', diaphragm (piston) assembly 6 ' is provided with has the damping hole 7 ' and pressure release passage 12 ' of chamber UNICOM up and down, the nonreturn valve core 14 ' of closing when when pressure release passage 12 ' is provided with the circulation of medium forward, opening reverse circulated.
During the medium forward flow; When the poppet port 2 ' that electromagnetic priority valve 1 ' receives electromagnetic attraction to do the time spent general is opened; Medium in the upper chamber flows out the electromagnetic valve outlet end through poppet port 2 ' and nonreturn valve core 14 '; Thereby the pressure difference that makes this diaphragm (piston) assembly 6 ' bear towards the bi-side of epicoele 5 ' and cavity of resorption 8 ' at its primary valve 11 ' produces when changing and to top offset primary valve 11 ' is opened, and when pilot valve mouth 2 ' was closed, the medium of lower chambers 8 ' flowed to upper chamber 5 ' through damping hole 7 '; Make upper chamber's 5 ' pressure raise, to bottom offset primary valve 11 ' is closed thereby make diaphragm (piston) assembly 6 ' produce.When the medium reverse circulated; Medium can't flow to upper chamber 5 ' because of closing pressure release passage 12 ' under the nonreturn valve core 14 ' effect; The medium of media outlet end acts directly on (piston) assembly 6 ' lower end on the one hand it is moved up under the effect of pressure, and primary valve 11 ' is closed.
Above-mentioned the solenoid valve Returnning spring in its electromagnetic priority valve 1 ', moving iron core and diaphragm (piston) assembly 6 ' that has nonreturn valve core when dead electricity be linked together; Because the Returnning spring rigidity in the electromagnetic priority valve is less generally speaking; Make that diaphragm (piston) eigentone that has connection Returnning spring, moving iron core is lower; Receive the influence of system media fluctuation easily, finally cause unstable properties; Simultaneously; When medium during in reverse circulated, diaphragm (piston) assembly 6 ' clashes into the valve gap lower end surface under the effect of medium power, in the bounce-back downwards of the moment of bump spool; Cause a part of MEDIA FLOW to upper chamber, diaphragm (piston) assembly 6 ' up-down vibration can occur even phenomenon can occur closing.
Therefore, be necessary to provide a kind of MEDIA FLOW that do not receive to influencing the two-way circulated solenoid valve of stable performance.
The model utility content
The utility model purpose is to provide a kind of two-way circulated solenoid valve, and diaphragm (piston) assembly receives MEDIA FLOW makes technical problem from the unstable properties of solenoid valve to influence easily when working to solve two-way circulated solenoid valve of the prior art.
For realizing above-mentioned purpose, the utility model provides a kind of two-way circulated solenoid valve, comprising: valve body has medium inlet and media outlet, and is formed at the primary valve between medium inlet and the media outlet; Valve gap is arranged on the top of primary valve, and and valve body between form main chamber, the valve gap upper end also is formed with poppet port; The pilot valve assembly is located at the top of poppet port, and and valve gap between form first guide cavity, poppet port is communicated with first guide cavity; Diaphragm unit is positioned at main chamber; Wherein, Be communicated with through current by pass between main chamber and the first guide cavity; Poppet port is communicated with media outlet through unidirectional pressure release passage, is provided with unidirectional pressure release passage is opened when the medium forward circulates the one-way valve of when the medium reverse circulated, closing in the unidirectional pressure release passage.
Further, diaphragm unit comprises: diaphragm covers on the primary valve; Spring is positioned at main chamber, and diaphragm is exerted pressure towards primary valve.
Further, also be formed with the auxiliary valve port that is communicated between main chamber and the medium inlet on the valve body, primary valve is communicated with the medium inlet through auxiliary valve port, and auxiliary valve port is identical with the opening direction of primary valve, and diaphragm covers on auxiliary valve port and the primary valve simultaneously.
Further, the part on the auxiliary valve port of covering of diaphragm is provided with and is used to damping hole that auxiliary valve port is communicated with main chamber.
Further, be formed with reducing in the unidirectional pressure release passage, the conical plug of one-way valve for matching with reducing, the direction that the top of conical plug and medium forward flow into is relative.
Further, the bottom surface of conical plug is provided with pushing assisted plate, links to each other through connecting rod between the bottom surface of pushing assisted plate and conical plug.
Further, unidirectional pressure release passage extends in the valve gap with the axial vertical direction of media outlet from the media outlet edge of valve body, and the direction of edge and the parallel to an axis of medium inlet extends to first guide cavity to form poppet port in valve gap.
Further, current by pass is formed in the valve gap.
Further, an end of valve gap is provided with boss, is provided with first groove in the boss, and the pilot valve assembly is arranged on the boss.
Further; Comprise moving iron core in the pilot valve assembly, a moving iron core end relative with poppet port is provided with sealing gasket, and the pilot valve assembly also comprises and is used for the compressing member that links to each other with boss; The end face with the compressing member connecting part of boss is provided with second groove, is provided with seal ring in second groove.
The utlity model has following beneficial effect:
Pilot valve assembly and diaphragm in the two-way circulated solenoid valve that the utility model provides lay respectively at first guide cavity and main chamber; Can reduce the influence that too receives the system media fluctuation because of the diaphragm unit eigentone is low; Simultaneously; Directly be not communicated with between unidirectional pressure release passage and the diaphragm, can further reduce to make medium flow into the potential risk of main chamber from unidirectional pressure release passage because of diaphragm unit moves up and down.
Except top described purpose, feature and advantage, the utility model also has other purpose, feature and advantage.To do further detailed explanation to the utility model with reference to figure below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation of two-way circulated solenoid valve in the existing technology;
Fig. 2 is first kind of structural representation of the utility model preferred embodiment;
Fig. 3 is second kind of structural representation of the utility model preferred embodiment; And
Fig. 4 is the third structural representation of the utility model preferred embodiment.
Embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 2; The utility model provides a kind of two-way circulated solenoid valve; Comprise: valve body 10 be arranged on the valve gap 30 on the valve body 10; Wherein, the two ends of valve body 10 are respectively arranged with medium inlet 11 and media outlet 13, and medium inlet 11 is connected with media outlet connecting tube 43 with medium inlet connecting branch 41 respectively with media outlet 13; Between medium inlet 11 and media outlet 13, also be provided with primary valve 12; Over against primary valve 12 diaphragm unit (also can claim piston assembly) 20 that can produce displacement is set; Diaphragm unit 20 comprises diaphragm 21, and diaphragm 21 is covering under the effect of spring 23 on the primary valve 12; Valve gap 30 is arranged on the top of primary valve 12 and diaphragm unit 20; Diaphragm unit is encapsulated between valve gap 30 and the valve body 10; And formed main chamber 15 between valve gap 30 and the diaphragm 21; For the pressure in the main chamber 15 can be discharged, also be provided with poppet port 31 on the valve gap 30, the outside of poppet port 31 also is provided with and is used for pilot valve assembly 50 that poppet port 31 is opened or closed; Form first guide cavity between pilot valve assembly 50 and the valve gap 30; Poppet port 31 is communicated with this elder generation's guide cavity; Be interconnected through current by pass 35 between elder generation's guide cavity and the main chamber 15, poppet port 21 is communicated with media outlet 13 through unidirectional pressure release passage 33, is provided with one-way valve 32 in this unidirectional pressure release passage 33; This one-way valve 32 is opened unidirectional pressure release passage 33 when the medium forward flow, when the medium reverse flow, close.When the medium forward circulates; Medium in the main chamber 15 can get into first guide cavity through current by pass 35, passes through media outlet 13 through the unidirectional pressure release passage 33 of poppet port 31 entering again and flows out, and the pressure of main chamber 15 is reduced; Diaphragm 21 is backed down, and then primary valve 12 is opened.
The unidirectional pressure release passage 33 of two-way circulated solenoid valve provided by the invention is independent of main chamber 15 and first guide cavity; The motion of one-way valve 32 only receives the effect of medium; And can not receive the influence of the vibration of the piston in the pilot valve assembly; Also can not receive the influence of the diaphragm vibration in the diaphragm unit, the sealing effect when oppositely damming is better.
Also be provided with the spring 23 that two ends connect with valve gap 30 and diaphragm 21 respectively in the main chamber 15, utilize this spring 23 that diaphragm 21 is resetted primary valve 12 is sealed.The two ends of spring 23 can withstand on respectively on valve gap 30 and the diaphragm 21.
As a kind of concrete structure; Also be formed with the auxiliary valve port 17 that is communicated between main chamber 15 and the medium inlet 11 on the valve body 10; Primary valve 12 is through being communicated with medium inlet 11 by auxiliary valve port 17; Auxiliary valve port 17 is identical with the opening direction of primary valve 12, and diaphragm 21 covers on this auxiliary valve port 17 simultaneously, closes will assist valve port 17.
The auxiliary valve port 17 that covers of diaphragm 21 is provided with the damping hole 21a that main chamber 15 medium inlets 11 are communicated with, and during reverse circulated, can utilize this damping hole 21a that the medium in the main chamber 15 is discharged to discharge.
Can, open the medium forward when circulating in order to make unidirectional pressure release passage 33; When the medium reverse circulated, close; Be formed with reducing in the unidirectional pressure release passage 33; This reducing is formed by ladder surface, and one-way valve 32 is for to be arranged on the conical plug in this reducing, and the top of conical plug is relative with medium positive flow Inbound.The medium positive flow is fashionable, and one-way valve 32 is backed down, and during the medium reverse flow, promotes one-way valve 32 and withstands in the reducing, reducing is closed, and then realize the purpose of unidirectional conducting.
To the thrust of conical plug, the bottom surface of conical plug can also be provided with pushing assisted plate 34 when increasing the medium reverse circulated, links to each other through connecting rod 36 between pushing assisted plate 34 and the conical plug.Utilize connecting rod 36 can also increase the length of conical plug in unidirectional pressure release passage 33, play buffer function, prevent conical plug in unidirectional pressure release passage 33 owing to the greater impact that receives medium damages.
Like Fig. 3 and shown in Figure 4, one-way valve 32 can also be combined to the position of poppet port 31, or the junction point between valve body 10 and valve gap 30.Certainly, also can be arranged in main chamber 15 and the current by pass 35 that first guide cavity communicates, which kind of position no matter, fit and working principle are all same as described above.One-way valve 32 is located on these positions, and the vibration of diaphragm that can effectively avoid electromagnetic piston and diaphragm unit in the pilot valve assembly is to the influence of one-way valve 32, reduces the suffered impact force of one-way valve 32, the working life of improving one-way valve 32.
As a kind of optional mode of execution; Unidirectional pressure release passage 33 extends in the valve gap 30 with the axial vertical direction of media outlet 13 from the media outlet 13 end edges of valve body 10; And the edge extends to first guide cavity with the direction of the parallel to an axis of medium inlet 11 and is communicated with in valve gap 30, to form poppet port 31.The part of unidirectional pressure release passage 33 forms in valve body 10; Another part forms in valve gap 30, has connected poppet port 31 and media outlet 13, makes medium when forward circulates; Medium in the main chamber 15 is discharged through this unidirectional pressure release passage 33; Reducing the pressure in the main chamber 15, so make diaphragm 21 under the effect that flows into medium by jack-up, primary valve 12 is unlocked.
Current by pass 35 can be formed in the valve gap 30.
Valve gap 30 is provided with boss 37, is formed with first groove in the boss 37, and pilot valve assembly 50 is arranged on the boss 37, and this first groove forms the guide chamber.Comprise moving iron core 52 in the pilot valve assembly 50; Moving iron core 52 is provided with sealing gasket 54 with poppet port 31 relative ends; Pilot valve assembly 50 also comprises and is used for the compressing member 55 that links to each other with boss 37; Boss 37 is provided with second groove with the end face of compressing member 55 connecting parts, is provided with seal ring 39 in second groove.
When the medium forward circulates; Coil in the pilot valve assembly 50 makes electronic iron core 52 move to the direction of the static iron core that is in the top, and poppet port 21 is opened, and medium gets into unidirectional pressure release passage 33; Promoting conical plug 32 opens check-valve port; Flow out through media outlet 13, the working principle of back is identical with common unidirectional electrical magnet valve, promptly under certain pressure reduction condition; The diaphragm 21 that the switching of solenoid valve can promote in the diaphragm unit 20 through the outside pressure difference that changes main chamber 15 and auxiliary valve port 17 moves, and then realizes that primary valve 12 opens and closes; When the medium reverse circulated; The conical plug 32 that unidirectional pressure release passage is 33 li stops medium further to circulate, no matter whether poppet port 31 is opened, can both stop medium to flow to main chamber 15; And then avoid forming in the main chamber 15 hyperbaric chambers; Make medium push diaphragm 21 to valve gap 30 upper-end surfaces through the active force on the primary valve 12 like this, primary valve 12 is opened, and then has realized the medium reverse circulated.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. a two-way circulated solenoid valve is characterized in that, comprising:
Valve body (10) has medium inlet (11) and media outlet (13), and is formed at the primary valve (12) between said medium inlet (11) and the said media outlet (13);
Valve gap (30) is arranged on the top of said primary valve (12), and and said valve body (10) between form main chamber (15), said valve gap (30) upper end also is formed with poppet port (31);
Pilot valve assembly (50) is located at the top of said poppet port (31), and and said valve gap (30) between form first guide cavity, said poppet port (31) is communicated with said first guide cavity;
Diaphragm unit (20) is positioned at said main chamber (15);
Wherein, Be communicated with through current by pass (35) between said main chamber (15) and the said first guide cavity; Said poppet port (31) is communicated with said media outlet (13) through unidirectional pressure release passage (33); Be provided with in the said unidirectional pressure release passage (33) said unidirectional pressure release passage (33) is opened when the medium forward circulates, the one-way valve (32) of when the medium reverse circulated, closing.
2. two-way circulated solenoid valve according to claim 1 is characterized in that, said diaphragm unit (20) comprising:
Diaphragm (21) covers on the said primary valve (12);
Spring (23) is positioned at said main chamber (15), and said diaphragm (21) is exerted pressure towards said primary valve (12).
3. two-way circulated solenoid valve according to claim 2; It is characterized in that; Also be formed with the auxiliary valve port (17) that is communicated between said main chamber (15) and said medium inlet (11) on the said valve body (10); Said primary valve (12) is communicated with said medium inlet (11) through said auxiliary valve port (17), and said auxiliary valve port (17) is identical with the opening direction of said primary valve (12), and said diaphragm (21) covers on said auxiliary valve port (17) and the said primary valve (12) simultaneously.
4. two-way circulated solenoid valve according to claim 3 is characterized in that, the part on the said auxiliary valve port (17) of covering of said diaphragm (21) is provided with and is used to damping hole (21a) that said auxiliary valve port (17) is communicated with said main chamber (15).
5. two-way circulated solenoid valve according to claim 1; It is characterized in that; Be formed with reducing in the said unidirectional pressure release passage (33), the conical plug of said one-way valve (32) for matching with said reducing, the direction that the top of said conical plug and medium forward flow into is relative.
6. two-way circulated solenoid valve according to claim 5 is characterized in that, the bottom surface of said conical plug is provided with pushing assisted plate (34), links to each other through connecting rod (36) between the bottom surface of said pushing assisted plate (34) and said conical plug.
7. two-way circulated solenoid valve according to claim 5; It is characterized in that; Said unidirectional pressure release passage (33) extends in the said valve gap (30) with the axial vertical direction of said media outlet (13) from media outlet (13) edge of said valve body (10), and the direction of edge and the parallel to an axis of said medium inlet (11) extends to said first guide cavity to form said poppet port (31) in said valve gap (30).
8. two-way circulated solenoid valve according to claim 1 is characterized in that, said current by pass (35) is formed in the said valve gap (30).
9. two-way circulated solenoid valve according to claim 1 is characterized in that, an end of said valve gap (30) is provided with boss (37), and said boss is provided with first groove in (37), and said pilot valve assembly (50) is arranged on the said boss (37).
10. two-way circulated solenoid valve according to claim 9; It is characterized in that; Comprise moving iron core (52) in the said pilot valve assembly (50), the end that said moving iron core (52) is relative with said poppet port (31) is provided with sealing gasket (54), and said pilot valve assembly (50) also comprises and is used for the compressing member (55) that links to each other with said boss (37); The end face with said compressing member (55) connecting part of said boss (37) is provided with second groove, is provided with seal ring (39) in said second groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204907240U CN202392251U (en) | 2011-11-30 | 2011-11-30 | Two-way flow solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204907240U CN202392251U (en) | 2011-11-30 | 2011-11-30 | Two-way flow solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392251U true CN202392251U (en) | 2012-08-22 |
Family
ID=46667178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204907240U Expired - Lifetime CN202392251U (en) | 2011-11-30 | 2011-11-30 | Two-way flow solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202392251U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925390A (en) * | 2013-01-10 | 2014-07-16 | 北京谊安医疗系统股份有限公司 | Piloted control valve group |
| CN109538781A (en) * | 2018-12-19 | 2019-03-29 | 浙江瑞城消防设备有限公司 | Solenoid valve with manual function |
| CN110056702A (en) * | 2019-05-23 | 2019-07-26 | 浙江班尼戈流体控制有限公司 | A kind of upper and lower fluid level control valve of machinery magnetic induction |
| CN112460267A (en) * | 2019-09-06 | 2021-03-09 | 盾安环境技术有限公司 | Electromagnetic valve |
-
2011
- 2011-11-30 CN CN2011204907240U patent/CN202392251U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925390A (en) * | 2013-01-10 | 2014-07-16 | 北京谊安医疗系统股份有限公司 | Piloted control valve group |
| CN109538781A (en) * | 2018-12-19 | 2019-03-29 | 浙江瑞城消防设备有限公司 | Solenoid valve with manual function |
| CN110056702A (en) * | 2019-05-23 | 2019-07-26 | 浙江班尼戈流体控制有限公司 | A kind of upper and lower fluid level control valve of machinery magnetic induction |
| CN110056702B (en) * | 2019-05-23 | 2024-05-17 | 浙江班尼戈流体控制有限公司 | Mechanical magnetic induction up-down liquid level control valve |
| CN112460267A (en) * | 2019-09-06 | 2021-03-09 | 盾安环境技术有限公司 | Electromagnetic valve |
| CN112460267B (en) * | 2019-09-06 | 2022-11-08 | 盾安环境技术有限公司 | Electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |