CN204985828U - Tee bend diaphragm formula normally open solenoid valve - Google Patents
Tee bend diaphragm formula normally open solenoid valve Download PDFInfo
- Publication number
- CN204985828U CN204985828U CN201520754986.1U CN201520754986U CN204985828U CN 204985828 U CN204985828 U CN 204985828U CN 201520754986 U CN201520754986 U CN 201520754986U CN 204985828 U CN204985828 U CN 204985828U
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- valve
- iron core
- diaphragm
- valve gap
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Abstract
The utility model discloses a tee bend diaphragm formula normally open solenoid valve, including valve body, valve gap and pilot unit, the lateral wall of valve body is provided with air inlet and gas outlet respectively, is provided with the valve port in the valve body, and the valve gap is provided with the lower guide's passageway that communicates with the gas outlet with the valve body cooperation, pilot unit includes the sleeve pipe, moves the iron core, quiet iron core and coil pack, and sheathed tube bottom and valve gap fixed connection are formed with the air chamber between sleeve pipe, quiet iron core and the valve gap, press between valve body and the valve gap be equipped with with the sealed complex diaphragm of valve port, support between diaphragm and the valve gap and being equipped with diaphragm spring, be formed with the valve epicoele between diaphragm and the valve gap, the valve gap is provided with the air guide hole that is used for communicateing valve epicoele and air chamber, the valve body is provided with the pressure boost passageway that is used for communicateing air inlet and air chamber with the valve gap cooperation, moves the lower extreme and the sealed cooperation of pressure boost passageway of iron core. The utility model has the advantages of simple and reasonable structure, convenient to use, sensitivity is higher, the working property is stable.
Description
Technical field
The utility model relates to valve class technical field, particularly a kind of threeway diaphragm type normally open solenoid valve.
Background technique
Along with the development of modern society, 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.Existing 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, Authorization Notice No. is that CN202252256U discloses one " 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 are communicated with successively with lower pilot hole and form 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, and solenoid valve is in normally open and keeps clear; When cutting off gas passageway 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: owing to being provided with the relief hole straight-through with suction port on piston, gas during work in suction port some can flow into relief hole all the time, the gas pressure that piston lower surface is subject to can be less than the actual suction pressure of suction port, thus causes piston action sensitivity to decrease.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, provide a kind of simple and reasonable, easy to use, sensitivity is higher, the threeway diaphragm type normally open solenoid valve of stable work in work.
For achieving the above object, the utility model is by the following technical solutions:
A kind of threeway diaphragm type normally open solenoid valve described in the utility model, the valve gap comprise valve body, being fixedly connected with described valve body, the top of described valve gap is provided with first guide assembly, the sidewall of described valve body is respectively arranged with suction port and air outlet, be provided with the valve port for being communicated with described air outlet by described suction port in described valve body, described valve gap and described valve body are equipped with the lower leader channel be communicated with described air outlet, described first guide assembly comprises sleeve pipe, dynamic iron core, static iron core and coil block, the bottom of described sleeve pipe is fixedly connected with described valve gap, described dynamic iron core is movably set with in described sleeve pipe, be fixedly installed described static iron core, dynamic iron core spring is provided with between the bottom of described dynamic iron core and described sleeve pipe, described coil block is arranged on the outer wall of described sleeve pipe, described sleeve pipe, air chamber is formed between described static iron core and described valve gap, described static iron core is provided with the upper leader channel communicated with described air chamber vertically, upper end and the described upper leader channel of described dynamic iron core are sealed and matched, described upper leader channel is connected by tracheae with described lower leader channel, the diaphragm coordinated with described sealing valve port is installed with between described valve body with described valve gap, to being provided with diaphragm spring between described diaphragm and described valve gap, valve epicoele is formed between described diaphragm and described valve gap, described valve gap is provided with the gas port for being communicated with described valve epicoele and described air chamber, described valve body and described valve gap are equipped with the Pressure channel for being communicated with described suction port and described air chamber, and lower end and the described Pressure channel of described dynamic iron core are sealed and matched.
Further, the top of described static iron core is fixedly connected with fittings body, described static iron core is connected with described tracheae by described fittings body, seal bar is movably set with in described upper leader channel, the inwall of described static iron core is provided with sealing inclined-plane, the lower end of described seal bar is provided with the seal ring matched with described sealing inclined-plane, to being provided with seal bar spring between the middle part of described seal bar and described fittings body; Described seal bar, under the effect of described seal bar spring, impels described seal ring and described sealing inclined-plane close contact.
Further, the upper end of described dynamic iron core is provided with the upper chock plug be sealed and matched with described upper leader channel, and the lower end of described dynamic iron core is provided with the lower chock plug be sealed and matched with described Pressure channel.
Further, the top of described diaphragm is fixedly connected with diaphragm seat, is provided with described diaphragm spring between described diaphragm seat and described valve gap.
The beneficial effects of the utility model are:
The threeway diaphragm type normally open solenoid valve that the utility model provides, by being equipped with the Pressure channel be communicated with suction port on valve body with valve gap, and the lower end of iron core and Pressure channel are sealed and matched, specifically, when coil block is not energized, dynamic iron core under the effect of dynamic iron core spring with Pressure channel close contact, Pressure channel is by shutoff, pressurized gas in now suction port is all moved for driving on diaphragm, diaphragm is impelled to open valve port fast, and when coil block is energized, move and depart from Pressure channel under the magnetic attraction effect that dynamic iron core then produces at static iron core, Pressure channel is unlocked, portion gas in suction port is successively through Pressure channel, gas port enters in valve epicoele, atmospheric pressure compensating is carried out to valve epicoele, to accelerate the speed that diaphragm moves down reset, impel diaphragm quick blocking valve port, thus effectively improve the sensitivity of diaphragm action, make to react more rapid during utility model works, flexibly.In addition, the utility model controls the open and close of valve port by adopting diaphragm, and adopts compared with piston structure in prior art, and the susceptibility that diaphragm changes pressure is higher, thus also further increase sensitivity of the present utility model, and service behaviour is also more stable.The utility model vibrational power flow advantages of simple.
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; 2, valve gap; 21, gas port; 31, sleeve pipe; 32, dynamic iron core; 321, upper chock plug; 322, lower chock plug; 33, static iron core; 331, upper leader channel; 332, inclined-plane is sealed; 34, coil block; 35, dynamic iron core spring; 4, lower leader channel; 5, tracheae; 6, diaphragm; 61, diaphragm spring; 62, diaphragm seat; 7, Pressure channel; 8, fittings body; 9, seal bar; 91, seal ring; 92, seal bar spring; A, air chamber; B, valve epicoele.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of threeway diaphragm type normally open solenoid valve as shown in Figure 1, the valve gap 2 comprise valve body 1, being fixedly connected with valve body 1, the top of 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, be provided with the valve port 13 for being communicated with air outlet 12 by suction port 11 in valve body 1, valve gap 2 and valve body 1 are equipped with the lower leader channel 4 be communicated with air outlet 12.First guide assembly comprises sleeve pipe 31, dynamic iron core 32, static iron core 33 and coil block 34, the bottom of sleeve pipe 31 is fixedly connected with valve gap 2, dynamic iron core 32 is movably set with in sleeve pipe 31, be fixedly installed static iron core 33, dynamic iron core spring 35 is provided with between the bottom of dynamic iron core 32 and sleeve pipe 31, coil block 34 is arranged on the outer wall of sleeve pipe 31, sleeve pipe 31, air chamber A is formed between static iron core 33 and valve gap 2, static iron core 33 is provided with the upper leader channel 331 communicated with air chamber A vertically, upper end and the upper leader channel 331 of dynamic iron core 32 are sealed and matched, preferably, the upper end of dynamic iron core 32 is provided with the upper chock plug 321 be sealed and matched with upper leader channel 331, upper leader channel 331 is connected by tracheae 5 with lower leader channel 4, the diaphragm 6 be sealed and matched with valve port 13 is installed with between valve body 1 and valve gap 2, to being provided with diaphragm spring 61 between diaphragm 6 and valve gap 2, preferably, in order to make diaphragm 6 mounting structure more stable, the top of diaphragm 6 is fixedly connected with diaphragm seat 62, diaphragm spring 61 is provided with between diaphragm seat 62 and valve gap 2, valve epicoele B is formed between diaphragm 6 and valve gap 2, valve gap 2 is provided with the gas port 21 for connecting valve epicoele B and air chamber A, valve body 1 and valve gap 2 are equipped with the Pressure channel 7 for being communicated with suction port 11 and air chamber A, and lower end and the Pressure channel 7 of dynamic iron core 32 are sealed and matched, and preferably, the lower end of dynamic iron core 32 is provided with the lower chock plug 322 be sealed and matched with Pressure channel 7.
The utility model by being equipped with the Pressure channel 7 be communicated with suction port 11 on valve body 1 with valve gap 2, and the lower end of iron core 32 and Pressure channel 7 are sealed and matched, specifically, when coil block 34 is not energized, dynamic iron core 32 under the effect of dynamic iron core spring 35 with Pressure channel 7 close contact, Pressure channel 7 is by shutoff, pressurized gas in now suction port 11 is all moved for driving on diaphragm 6, diaphragm 6 is impelled to open valve port 13 fast, and when coil block 34 is energized, move under the magnetic attraction effect that dynamic iron core 32 produces at static iron core 33 and depart from Pressure channel 7, Pressure channel 7 is unlocked, portion gas in suction port 11 is successively through Pressure channel 7, gas port 21 enters in valve epicoele B, atmospheric pressure compensating is carried out to valve epicoele B, to accelerate the speed that diaphragm 6 moves down reset, impel diaphragm 6 quick blocking valve port 13, effectively improve the sensitivity of diaphragm 6 action, make to react more rapid during utility model works, flexibly.In addition, the utility model controls the open and close of valve port 13 by adopting diaphragm 6, and adopts compared with piston structure in prior art, and the susceptibility of diaphragm 6 pairs of pressure changes is higher, thus also further increase sensitivity of the present utility model, and service behaviour is also more stable.
In order to prevent the utility model operationally, gas medium in air outlet 12 can be back in valve epicoele B through tracheae 5, the top of static iron core 33 is fixedly connected with fittings body 8, static iron core 33 is connected with tracheae 5 by fittings body 8, seal bar 9 is movably set with in upper leader channel 331, the inwall of static iron core 33 is provided with sealing inclined-plane 332, and the lower end of seal bar 9 is provided with and seals the seal ring 91 matched on inclined-plane 332, to being provided with seal bar spring 92 between the middle part of seal bar 9 and fittings body 8; Seal bar 9, under the effect of seal bar spring 92, impels seal ring 91 and sealing inclined-plane 332 close contact.
When coil block 34 is not energized, dynamic iron core 32 under the effect of dynamic iron core spring 35 with Pressure channel 7 close contact, Pressure channel 7 is by shutoff, compressed gas-driven diaphragm 6 now in suction port 11 moves and opens valve port 13, make suction port 11 and air outlet 12 conducting, under the mating reaction on seal bar 9, seal bar spring 92, seal ring 91 and sealing inclined-plane 332, gas in air outlet 12 can not be back in valve epicoele B through tracheae 5, ensure that normal work of the present utility model, improve service behaviour; When coil block 34 is energized, dynamic iron core 32 moves and departs from Pressure channel 7, Pressure channel 7 is opened, correspondingly, the shutoff of upper leader channel 331 passive iron core 32, a part of gas in suction port 11 then flows in air chamber A through Pressure channel 7, and flow in valve epicoele B through gas port 21, along with the rising of valve epicoele B air pressure inside, gas pressure suffered by the upper and lower surface of diaphragm 6 balances each other, now diaphragm 6 is again by valve port 13 shutoff under the effect of diaphragm spring 61, and the path between suction port 11 and air outlet 12 is closed; When coil block 34 again power-off time, Pressure channel 7 is again by shutoff, gas now in valve epicoele B then enters in upper leader channel 331 through gas port 21, and push against in seal bar 9 and move, impel between seal ring 91 and sealing inclined-plane 332 and occur gap, make the gas in leader channel 331 flow to air outlet 12 through tracheae 5, when again there is pressure difference in the upper and lower surface of diaphragm 6, diaphragm 6 again on move, valve port 13 is opened again, and the utility model is in ON operation state again.
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 threeway diaphragm type normally open solenoid valve, the valve gap comprise valve body, being fixedly connected with described valve body, the top of described valve gap is provided with first guide assembly, the sidewall of described valve body is respectively arranged with suction port and air outlet, be provided with the valve port for being communicated with described air outlet by described suction port in described valve body, described valve gap and described valve body are equipped with the lower leader channel be communicated with described air outlet, described first guide assembly comprises sleeve pipe, dynamic iron core, static iron core and coil block, the bottom of described sleeve pipe is fixedly connected with described valve gap, described dynamic iron core is movably set with in described sleeve pipe, be fixedly installed described static iron core, dynamic iron core spring is provided with between the bottom of described dynamic iron core and described sleeve pipe, described coil block is arranged on the outer wall of described sleeve pipe, described sleeve pipe, air chamber is formed between described static iron core and described valve gap, described static iron core is provided with the upper leader channel communicated with described air chamber vertically, upper end and the described upper leader channel of described dynamic iron core are sealed and matched, described upper leader channel is connected by tracheae with described lower leader channel, it is characterized in that: between described valve body with described valve gap, be installed with the diaphragm coordinated with described sealing valve port, to being provided with diaphragm spring between described diaphragm and described valve gap, valve epicoele is formed between described diaphragm and described valve gap, described valve gap is provided with the gas port for being communicated with described valve epicoele and described air chamber, described valve body and described valve gap are equipped with the Pressure channel for being communicated with described suction port and described air chamber, and lower end and the described Pressure channel of described dynamic iron core are sealed and matched.
2. threeway diaphragm type normally open solenoid valve according to claim 1, it is characterized in that: the top of described static iron core is fixedly connected with fittings body, described static iron core is connected with described tracheae by described fittings body, seal bar is movably set with in described upper leader channel, the inwall of described static iron core is provided with sealing inclined-plane, the lower end of described seal bar is provided with the seal ring matched with described sealing inclined-plane, to being provided with seal bar spring between the middle part of described seal bar and described fittings body; Described seal bar, under the effect of described seal bar spring, impels described seal ring and described sealing inclined-plane close contact.
3. threeway diaphragm type normally open solenoid valve according to claim 1, it is characterized in that: the upper end of described dynamic iron core is provided with the upper chock plug be sealed and matched with described upper leader channel, and the lower end of described dynamic iron core is provided with the lower chock plug be sealed and matched with described Pressure channel.
4. threeway diaphragm type normally open solenoid valve according to claim 1, is characterized in that: the top of described diaphragm is fixedly connected with diaphragm seat, is provided with described diaphragm spring between described diaphragm seat and described valve gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520754986.1U CN204985828U (en) | 2015-09-25 | 2015-09-25 | Tee bend diaphragm formula normally open solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520754986.1U CN204985828U (en) | 2015-09-25 | 2015-09-25 | Tee bend diaphragm formula normally open solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985828U true CN204985828U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520754986.1U Expired - Fee Related CN204985828U (en) | 2015-09-25 | 2015-09-25 | Tee bend diaphragm formula normally open solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985828U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838437A (en) * | 2017-04-10 | 2017-06-13 | 福建省南平市顺华阳电器有限责任公司 | A kind of water supply regulating valve and the brake water-cooling system using the water supply regulating valve |
| 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 |
| 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 CN201520754986.1U patent/CN204985828U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838437A (en) * | 2017-04-10 | 2017-06-13 | 福建省南平市顺华阳电器有限责任公司 | A kind of water supply regulating valve and the brake water-cooling system using the water supply regulating valve |
| US11306844B2 (en) | 2017-06-26 | 2022-04-19 | Lixil Corporation | Pilot solenoid valve |
| 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 |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20200925 |