CN204985946U - Novel guide's diaphragm formula normally open solenoid valve - Google Patents
Novel guide's diaphragm formula normally open solenoid valve Download PDFInfo
- Publication number
- CN204985946U CN204985946U CN201520754959.4U CN201520754959U CN204985946U CN 204985946 U CN204985946 U CN 204985946U CN 201520754959 U CN201520754959 U CN 201520754959U CN 204985946 U CN204985946 U CN 204985946U
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- valve
- iron core
- valve gap
- chock plug
- diaphragm
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Abstract
The utility model discloses a novel guide's diaphragm formula normally open solenoid valve, which comprises the following components: a valve body, valve gap and pilot unit, the valve body is provided with the air inlet, gas outlet and valve port, pilot unit includes the sleeve pipe, move the iron core, quiet iron core and coil pack, the top and the sleeve pipe fixed connection of quiet iron core, the bottom and the valve gap fixed connection of quiet iron core, be formed with the air chamber between quiet iron core and the valve gap, press between valve body and the valve gap be equipped with with valve port complex diaphragm, the diaphragm is formed with the valve epicoele with the valve gap, the valve body is provided with the throttling passage who communicates air inlet and valve epicoele with the valve gap cooperation, guide's passageway of intercommunication gas outlet and air chamber, the valve gap is provided with the first guide hole of intercommunication valve epicoele and air chamber, be provided with in the air chamber and seal the complex chock plug with guide's passageway, the top counterbalance of push rod and chock plug is passed through to the bottom of moving the iron core, it is equipped with compression spring to support between chock plug and the valve gap. The utility model has the advantages of simple and reasonable structure, manufacturing cost is lower, the working property is stable, sensitivity is higher.
Description
Technical field
The utility model relates to valve class technical field, particularly a kind of pilot diaphragm type normally open solenoid valve.
Background technique
Along with modern society's ground development, automation equipment universal more and more extensive, and as the solenoid valve of fluid automatic controlling element, consumption is also increasing.Solenoid valve of a great variety, but basic principle is similar.Traditional guide electromagnetic valve is normal close type mostly, and be namely energized unlatching, and power-off is closed.Normal-closed electromagnetic valve is generally applicable to long-time system of closing, but in reality production, some system needs long-time unlatching, therefore normal-closed electromagnetic valve is difficult to adapt to this demand.
For this reason, yet have normal-open electromagnetic valve on the market at present, specifically can see such as Authorization Notice No. disclosed in CN202252256U a kind of " external pilot formula normally open solenoid valve ", its structure comprises valve body, be fixed on the valve gap on valve body top, valve body has the suction port and air outlet that lay respectively at valve body both sides, and be positioned at valve body and valve port in order to be communicated with suction port and air outlet, valve port is coated with piston, piston to be embedded in valve gap and can to slide up and down, piston spring is provided with between the top of piston and valve gap, the top of valve gap is also fixed with electromagnetic core, dynamic iron core is provided with between electromagnetic core and valve gap, dynamic iron core is connected on valve gap by dynamic iron core spring, piston side offers the relief hole communicated with suction port, valve gap end face offers the pore communicated with relief hole, electromagnetic core center offers the upper pilot hole connecting pore, valve gap side offers the lower pilot hole being communicated with air outlet, the upper end of lower pilot hole is connected to the upper end of upper pilot hole by being positioned at outside tracheae.When electromagnetic core no electric circuit, dynamic iron core is in the position away from electromagnetic core under the effect of dynamic iron core spring force, upper pilot hole in electromagnetic core is held open, relief hole, pore, upper pilot hole, tracheae is communicated with successively with lower pilot hole and forms loop, make the piston upper and lower surface air pressure balance being positioned at valve gap inside, now in suction port, be filled with pressurized gas, piston overcomes the effect of piston spring elastic force and moves up under suction pressure, suction port is connected by valve port with air outlet, solenoid valve is in normally open and keeps clear, now electromagnetic core is in off-position and does not work, gas is cut off when passing through when needs shut electromagnetic valve, only need to make electromagnetic core energising produce magnetic force overcome the elastic force of dynamic iron core spring and attract dynamic iron core to move up, end face on iron core is made to be close to the bottom surface of electromagnetic core, now the upper pilot hole of electromagnetic core inside is closed by dynamic iron core, make the space partition residing for piston upper and lower surface, under suction pressure, on piston, end face pressure is greater than its bottom surface pressure, simultaneously under the effect of piston spring elastic force, piston moves down, and closed valve port makes suction port and air outlet cut off.But the defect of above-mentioned leading type normally open solenoid valve is that vibrational power flow is comparatively complicated, cause manufacture cost higher, and service behaviour is stable not; In addition, the susceptibility changed pressure due to piston self is lower, also makes the sensitivity that have impact on solenoid valve to a certain extent.
Model utility content
The purpose of this utility model is defect for prior art and deficiency, provides a kind of simple and reasonable, manufacture cost is lower, stable work in work, sensitivity are higher pilot diaphragm type normally open solenoid valve.
For achieving the above object, the utility model is by the following technical solutions:
A kind of pilot diaphragm type normally open solenoid valve described in the utility model, comprise valve body, the valve gap be fixedly connected with described valve body, described valve gap is provided with first guide assembly, the sidewall of described valve body is respectively arranged with suction port and air outlet, the valve port for being communicated with described air outlet by described suction port is provided with in described valve body, described first guide assembly comprises sleeve pipe, dynamic iron core, static iron core and coil block, described dynamic iron core is movably set with in described sleeve pipe, the top of described sleeve pipe is fixedly connected with the cap with described dynamic iron core counter stopper, the top of described static iron core is fixedly connected with described sleeve pipe, the bottom of described static iron core is fixedly connected with described valve gap, described coil block is arranged on the outer wall of described sleeve pipe, air chamber is formed between described static iron core and described valve gap, the diaphragm coordinated with described sealing valve port is installed with between described valve body with described valve gap, valve epicoele is formed between described diaphragm and described valve gap, described valve body and described valve gap are equipped with the throttling passage for being communicated with described suction port and described valve epicoele, for being communicated with the leader channel of described air outlet and described air chamber, described valve gap is provided with the pilot hole for being communicated with described valve epicoele and described air chamber, the chock plug be sealed and matched with described leader channel is movably set with in described air chamber, described static iron core is provided with shaft through-hole vertically, push rod is movably set with in described shaft through-hole, the bottom of described dynamic iron core is offseted by the top of described push rod and described chock plug, to being provided with Compress Spring between described chock plug and described valve gap.
Further, the bottom of described chock plug is provided with mounting groove vertically, is movably set with the sealing plug be sealed and matched with described leader channel in described mounting groove, to being provided with chock plug spring between the bottom land of described sealing plug and described mounting groove.
Further, described diaphragm inside is provided with skeleton.
Further, the joint of described static iron core and described valve gap is embedded with seal ring.
The beneficial effects of the utility model are:
The diaphragm type normally open solenoid valve that the utility model provides, when coil block is not energized, chock plug under the effect of Compress Spring away from leader channel, suction port, throttling passage, valve epicoele, pilot hole, leader channel and air outlet are communicated with successively, suction port and air outlet is made to be in pressure balance state, diaphragm then under the gas pressure of suction port on move and open valve port, make suction port and air outlet conducting, now the utility model is in normally open and keeps clear; When coil block is energized, dynamic iron core moves down under the magnetic attraction effect of static iron core, and push against chock plug downwards by push rod, impel the bottom of chock plug to seal with leader channel to contact, path between pilot hole and leader channel is cut off, and the air pressure in valve epicoele raises gradually, moves down and plugging valve mouth again under making the gas pressure of diaphragm in valve epicoele, path between suction port and air outlet is closed, and now gas circuit of the present utility model is in cut-off state; When coil block again power-off time, chock plug is again away from leader channel under the effect of Compress Spring, and now the utility model is in normally open again, and gas circuit keeps clear again.
In sum, compared with prior art, the utility model vibrational power flow is more simple, thus has effectively saved manufacture cost, and improves the stability of service behaviour; In addition, the open and close of the utility model by adopting diaphragm to control valve port, the susceptibility changed pressure due to diaphragm is higher, thus also further increases sensitivity of the present utility model.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
In Fig. 1:
1, valve body; 11, suction port; 12, air outlet; 13, valve port; 14, throttling passage; 15, leader channel; 2, valve gap; 21, pilot hole; 22, seal ring; 31, sleeve pipe; 32, dynamic iron core; 33, static iron core; 331, shaft through-hole; 34, coil block; 35, cap; 4, diaphragm; 41, skeleton; 5, chock plug; 51, mounting groove; 52, sealing plug; 53, chock plug spring; 6, push rod; 7, Compress Spring; A, air chamber; B, valve epicoele.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of pilot diaphragm type normally open solenoid valve as shown in Figure 1, comprise valve body 1, the valve gap 2 be fixedly connected with valve body 1, valve gap 2 is provided with first guide assembly, the sidewall of valve body 1 is respectively arranged with suction port 11 and air outlet 12, the valve port 13 for being communicated with air outlet 12 by suction port 11 is provided with in valve body 1, first guide assembly comprises sleeve pipe 31, dynamic iron core 32, static iron core 33 and coil block 34, dynamic iron core 32 is movably set with in sleeve pipe 31, the top of sleeve pipe 31 is fixedly connected with the cap 35 with dynamic iron core 32 counter stopper, the top of static iron core 33 is fixedly connected with sleeve pipe 31, the bottom of static iron core 33 is fixedly connected with valve gap 2, coil block 34 is arranged on the outer wall of sleeve pipe 31, air chamber A is formed between static iron core 33 and valve gap 2, the diaphragm 4 be sealed and matched with valve port 13 is installed with between valve body 1 and valve gap 2, valve epicoele B is formed between diaphragm 4 and valve gap 2, valve body 1 and valve gap 2 are equipped with the throttling passage 14 for being communicated with suction port 11 and valve epicoele B, for being communicated with the leader channel 15 of air outlet 12 and air chamber A, valve gap 2 is provided with the pilot hole 21 for connecting valve epicoele B and air chamber A, the chock plug 5 be sealed and matched with leader channel 15 is movably set with in air chamber A, static iron core 33 is provided with shaft through-hole 331 vertically, push rod 6 is movably set with in shaft through-hole 331, the bottom of dynamic iron core 32 is offseted by the top of push rod 6 with chock plug 5, to being provided with Compress Spring 7 between chock plug 5 and valve gap 2.
When coil block 34 is not energized, chock plug 5 under the effect of Compress Spring 7 away from leader channel 15, suction port 11, throttling passage 14, valve epicoele B, pilot hole 21, leader channel 15 and air outlet 12 are communicated with successively, suction port 11 and air outlet 12 is made to be in pressure balance state, 4, diaphragm under the gas pressure of suction port 11 on move and open valve port 13, make suction port 11 and air outlet 12 conducting, now the utility model is in normally open and keeps clear; When coil block 34 is energized, dynamic iron core 32 moves down under the magnetic attraction effect of static iron core 33, and by push rod 6 pushing and pressing chock plug 5 downwards, impel the bottom of chock plug 5 to seal with leader channel 15 to contact, path between pilot hole 21 and leader channel 15 is cut off, air pressure in valve epicoele B raises gradually, move down under making the gas pressure of diaphragm 4 in valve epicoele B and plugging valve mouth 13 again, path between suction port 11 and air outlet 12 is closed, and now gas circuit of the present utility model is in cut-off state; When coil block 34 again power-off time, chock plug 5 is again away from leader channel 15 under the effect of Compress Spring 7, and now the utility model is in normally open again, and gas circuit keeps clear again.
In sum, compared with prior art, the utility model vibrational power flow is more simple, thus has effectively saved manufacture cost, and improves the stability of service behaviour; In addition, the open and close of the utility model by adopting diaphragm 4 to control valve port 13, because the susceptibility of diaphragm 4 pairs of pressure changes is higher, thus also further increase sensitivity of the present utility model.
As a kind of preferred implementation of the present utility model, in order to improve the plugging effect to leader channel 15, the bottom of chock plug 5 is provided with mounting groove 51 vertically, the sealing plug 52 be sealed and matched with leader channel 15 is movably set with in mounting groove 51, to being provided with chock plug spring 53 between the bottom land of sealing plug 52 and mounting groove 51, by arranging chock plug spring 53, both improve sealing effect, also effectively prevent chock plug 5 to occur damaging phenomenon simultaneously, extend working life.
Diaphragm 4 inside is provided with skeleton 41, by arranging skeleton 41, has both improve the plugging effect of diaphragm 4 pairs of valve ports 13, makes diaphragm 4 stability higher, also extends the working life of diaphragm 4 simultaneously.Static iron core 33 is embedded with seal ring 22 with the joint of valve gap 2, by arranging seal ring 22, further increases tightness of the present utility model.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (4)
1. a pilot diaphragm type normally open solenoid valve, comprise valve body, the valve gap be fixedly connected with described valve body, described valve gap is provided with first guide assembly, the sidewall of described valve body is respectively arranged with suction port and air outlet, the valve port for being communicated with described air outlet by described suction port is provided with in described valve body, it is characterized in that: described first guide assembly comprises sleeve pipe, dynamic iron core, static iron core and coil block, described dynamic iron core is movably set with in described sleeve pipe, the top of described sleeve pipe is fixedly connected with the cap with described dynamic iron core counter stopper, the top of described static iron core is fixedly connected with described sleeve pipe, the bottom of described static iron core is fixedly connected with described valve gap, described coil block is arranged on the outer wall of described sleeve pipe, air chamber is formed between described static iron core and described valve gap, the diaphragm coordinated with described sealing valve port is installed with between described valve body with described valve gap, valve epicoele is formed between described diaphragm and described valve gap, described valve body and described valve gap are equipped with the throttling passage for being communicated with described suction port and described valve epicoele, for being communicated with the leader channel of described air outlet and described air chamber, described valve gap is provided with the pilot hole for being communicated with described valve epicoele and described air chamber, the chock plug be sealed and matched with described leader channel is movably set with in described air chamber, described static iron core is provided with shaft through-hole vertically, push rod is movably set with in described shaft through-hole, the bottom of described dynamic iron core is offseted by the top of described push rod and described chock plug, to being provided with Compress Spring between described chock plug and described valve gap.
2. pilot diaphragm type normally open solenoid valve according to claim 1, it is characterized in that: the bottom of described chock plug is provided with mounting groove vertically, the sealing plug be sealed and matched with described leader channel is movably set with, to being provided with chock plug spring between the bottom land of described sealing plug and described mounting groove in described mounting groove.
3. pilot diaphragm type normally open solenoid valve according to claim 1, is characterized in that: described diaphragm inside is provided with skeleton.
4. pilot diaphragm type normally open solenoid valve according to claim 1, is characterized in that: the joint of described static iron core and described valve gap is embedded with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520754959.4U CN204985946U (en) | 2015-09-25 | 2015-09-25 | Novel guide's diaphragm formula normally open solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520754959.4U CN204985946U (en) | 2015-09-25 | 2015-09-25 | Novel guide's diaphragm formula normally open solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985946U true CN204985946U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520754959.4U Expired - Fee Related CN204985946U (en) | 2015-09-25 | 2015-09-25 | Novel guide's diaphragm formula normally open solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985946U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152552A (en) * | 2017-07-07 | 2017-09-12 | 鞍山电磁阀有限责任公司 | Multilevel action magnetic valve and pipe-line system |
| CN107461514A (en) * | 2017-09-14 | 2017-12-12 | 浙江亿太诺气动科技有限公司 | A kind of energy-saving normally opened two-way valve |
| CN108757995A (en) * | 2018-07-24 | 2018-11-06 | 凯铭科技(杭州)有限公司 | A kind of multichannel flow control valve |
| CN111237533A (en) * | 2020-03-19 | 2020-06-05 | 鞍山电磁阀有限责任公司 | Pilot-operated electromagnetic valve |
| CN111457148A (en) * | 2019-01-21 | 2020-07-28 | 浙江三花制冷集团有限公司 | Pilot-operated electromagnetic valve |
| CN112218724A (en) * | 2019-08-30 | 2021-01-12 | 深圳市大疆创新科技有限公司 | Agricultural plant protection unmanned aerial vehicle's machine carries sprinkler structure, sprinkling system and unmanned aerial vehicle |
| CN112728126A (en) * | 2020-12-27 | 2021-04-30 | 浙江鸿森机械有限公司 | Piston type electromagnetic valve opened without differential pressure |
| US11306844B2 (en) | 2017-06-26 | 2022-04-19 | Lixil Corporation | Pilot solenoid valve |
-
2015
- 2015-09-25 CN CN201520754959.4U patent/CN204985946U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11306844B2 (en) | 2017-06-26 | 2022-04-19 | Lixil Corporation | Pilot solenoid valve |
| CN107152552A (en) * | 2017-07-07 | 2017-09-12 | 鞍山电磁阀有限责任公司 | Multilevel action magnetic valve and pipe-line system |
| CN107152552B (en) * | 2017-07-07 | 2023-09-22 | 鞍山电磁阀有限责任公司 | Multistage action electromagnetic valve and pipeline system |
| CN107461514A (en) * | 2017-09-14 | 2017-12-12 | 浙江亿太诺气动科技有限公司 | A kind of energy-saving normally opened two-way valve |
| CN108757995A (en) * | 2018-07-24 | 2018-11-06 | 凯铭科技(杭州)有限公司 | A kind of multichannel flow control valve |
| CN111457148A (en) * | 2019-01-21 | 2020-07-28 | 浙江三花制冷集团有限公司 | Pilot-operated electromagnetic valve |
| CN112218724A (en) * | 2019-08-30 | 2021-01-12 | 深圳市大疆创新科技有限公司 | Agricultural plant protection unmanned aerial vehicle's machine carries sprinkler structure, sprinkling system and unmanned aerial vehicle |
| CN111237533A (en) * | 2020-03-19 | 2020-06-05 | 鞍山电磁阀有限责任公司 | Pilot-operated electromagnetic valve |
| CN112728126A (en) * | 2020-12-27 | 2021-04-30 | 浙江鸿森机械有限公司 | Piston type electromagnetic valve opened without differential pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20200925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |