CN204327991U - Piston electromagnetic valve - Google Patents
Piston electromagnetic valve Download PDFInfo
- Publication number
- CN204327991U CN204327991U CN201420681687.5U CN201420681687U CN204327991U CN 204327991 U CN204327991 U CN 204327991U CN 201420681687 U CN201420681687 U CN 201420681687U CN 204327991 U CN204327991 U CN 204327991U
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- China
- Prior art keywords
- iron core
- dynamic iron
- central shaft
- piston assembly
- valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a kind of piston electromagnetic valve, includes valve body, valve gap, piston assembly, fixed core, dynamic iron core and coil; Form epicoele between the upper surface of this piston assembly and valve gap inwall, piston assembly is provided with throttle orifice, and piston assembly has piston seal, and this piston assembly is provided with central shaft, and the upper and lower end face of central shaft axial running through is formed with relief hole; Exhausted magnetic tube is connected on valve gap, and coil is placed on exhausted magnetic tube, and dynamic iron core is realized adhesive by coil electricity, power-off and is separated in exhausted magnetic tube.This dynamic iron core can be arranged at directly over central shaft up and downly, dynamic iron core is arranged with the first spring, is connected with the second spring between this dynamic iron core and central shaft.By being connected with the second spring between dynamic iron core and central shaft, and coordinating fixed core and coil, making this product can realize zero pressure and starting, maximum pressure can reach 5MPa, pressure range is 0 ~ 5.0MPa, thus expands the using scope of product, brings convenience for using.
Description
Technical field
The utility model relates to solenoid valve field technique, refers in particular to a kind of piston electromagnetic valve.
Background technique
Solenoid valve (Electromagnetic valve) is the industry equipment by Electromagnetic Control, is used to the automation foundation element controlling fluid, belongs to final controlling element, is not limited to hydraulic pressure, pneumatic.Be used in industrial control system adjust medium direction, flow, speed and other parameter.Solenoid valve can coordinate different circuit to realize the control of expection, and the precision controlled and flexibility can both ensure.Solenoid valve has a variety of, and different solenoid valves plays a role at the diverse location of control system, and the most frequently used is one-way valve, safety valve, position control valve, speed-regulating valve etc.
Guide electromagnetic valve is the one of solenoid valve, and during its energising, electromagnetic force opens pilot hole, and upper chamber's pressure declines rapidly, forms lowly high pressure reduction around closure member, and hydrodynamic pressure promotes closure member and moves up, valve open; During power-off, spring force cuts out pilot hole, and inlet pressure is formed by the rapid chamber of by-pass hole and bends down high pressure reduction around the valve member of pass, and hydrodynamic pressure promotes closure member and moves down, throttle down.
But, current guide electromagnetic valve its need breakout pressure to be not less than 0.01Mpa, and zero pressure difference solenoid valve pressure range can only accomplish 0 ~ 0.1Mpa usually, and product using scope is narrow, thus makes troubles to use.
Model utility content
In view of this, the utility model is for the disappearance of prior art existence, and its main purpose is to provide a kind of piston electromagnetic valve, and it effectively can solve the narrow and awkward problem of existing solenoid valve application area.
For achieving the above object, the utility model adopts following technological scheme:
A kind of piston electromagnetic valve, includes valve body, valve gap, piston assembly, fixed core, coil and dynamic iron core; Be separated to form input cavity and output cavity in this valve body, valve body be provided with the delivery outlet and the inlet opening being communicated with output cavity that are communicated with input cavity; This valve gap is arranged to enclose on valve body and with valve body and has been configured to cavity, and delivery outlet and inlet opening are all communicated with this cavity; This piston assembly can be arranged in cavity up and downly, epicoele is formed between the upper surface of piston assembly and valve gap inwall, piston assembly is provided with the throttle orifice be communicated with between delivery outlet and epicoele, piston assembly has the piston seal for shutoff inlet opening, this piston assembly is provided with central shaft, and the relief hole being formed and being communicated with between epicoele and output cavity is axially run through in the upper and lower end face of central shaft; This fixed core and coil are all arranged on valve gap, this dynamic iron core can be arranged at directly over central shaft up and downly, dynamic iron core is arranged with the first spring that iron core is resetted downwards, be connected with the second spring between this dynamic iron core and central shaft, and the lower end surface of dynamic iron core is provided with the dynamic iron core Sealing for shutoff relief hole.
Preferably, the upper end of described central shaft is provided with the first draw-in groove, and the lower end of this dynamic iron core is provided with the second draw-in groove, and the lower end of this second spring is stuck in the first draw-in groove fixing, and the upper end of the second spring is stuck in the second draw-in groove fixing.
Preferably, described valve gap is connected with exhausted magnetic tube, this fixed core is placed in exhausted magnetic tube top and is arranged on valve gap by nut, and coil is placed on exhausted magnetic tube.
Preferably, described exhausted magnetic tube is coated at dynamic iron core.
The utility model compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution:
By being connected with the second spring between dynamic iron core and central shaft, and coordinating fixed core and coil, making this product can realize zero pressure and starting, maximum pressure can reach 5Mpa, pressure range is 0 ~ 5.0Mpa, thus expands the using scope of product, brings convenience for using.
For more clearly setting forth structure characteristic of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the sectional view of the preferred embodiment of the utility model.
Accompanying drawing identifier declaration:
10, valve body 11, input cavity
12, output cavity 13, delivery outlet
14, inlet opening 20, valve gap
30, piston assembly 301, epicoele
302, throttle orifice 40, fixed core
50, coil 60, dynamic iron core
61, the second draw-in groove 71, piston seal
72, the first spring 73, second spring
74, dynamic iron core Sealing 75, nut
76, exhausted magnetic tube 80, central shaft
81, relief hole 82, first draw-in groove.
Embodiment
Please refer to shown in Fig. 1, that show the concrete structure of the preferred embodiment of the utility model, include valve body 10, valve gap 20, piston assembly 30, fixed core 40, coil 50 and dynamic iron core 60.
Be separated to form input cavity 11 and output cavity 12 in this valve body 10, valve body 10 be provided with the delivery outlet 13 and the inlet opening 14 being communicated with output cavity 12 that are communicated with input cavity 11.
This valve gap 20 is arranged to enclose on valve body 10 and with valve body 10 and has been configured to cavity, and delivery outlet 13 is all communicated with this cavity with inlet opening 14.
This piston assembly 30 can be arranged in cavity up and downly, epicoele 301 is formed between the upper surface of piston assembly 30 and valve gap 20 inwall, piston assembly 30 is provided with the throttle orifice 302 be communicated with between delivery outlet 13 and epicoele 301, piston assembly 30 has the piston seal 71 for shutoff inlet opening 14, this piston assembly 30 is provided with central shaft 80, and the relief hole 81 being formed and being communicated with between epicoele 301 and output cavity 12 is axially run through in the upper and lower end face of central shaft 80.
This fixed core 40 and coil 50 are all arranged on valve gap 20, this dynamic iron core 60 can be arranged at directly over central shaft 80 up and downly, dynamic iron core 60 is arranged with the first spring 72 that iron core 60 is resetted downwards, be connected with the second spring 73 between this dynamic iron core 60 and central shaft 80, and the lower end surface of dynamic iron core 60 is provided with the dynamic iron core Sealing 74 for shutoff relief hole 81; And be arranged with exhausted magnetic tube 76 outside this dynamic iron core 60, this exhausted magnetic tube 76 connects on valve gap 20, and this fixed core 40 is placed in top in exhausted magnetic tube 76 and is arranged on valve gap 20 by nut 75, and coil 50 is placed on exhausted magnetic tube 76.
In the present embodiment, the upper end of this central shaft 80 is provided with the first draw-in groove 82, and the lower end of this dynamic iron core 60 is provided with the second draw-in groove 61, and the lower end of this second spring 73 is stuck in the first draw-in groove 82 fixing, and the upper end of the second spring 73 is stuck in the second draw-in groove 61 fixing.
When medium has pressure, after coil 50 is energized, iron core 60 is moved in adhesive, dynamic iron core 60 is upwards movable, and the servo-actuated iron core 60 of this iron core Sealing 74 is upwards movable and opened by relief hole 81, this epicoele 301 pressure release, medium in epicoele 301 flows into output cavity 12 downwards by relief hole 81, meanwhile, the medium in input cavity 11 promotes piston assembly 30 and opens solenoid valve, and media implementation circulates.
Medium without pressure or pressure less time, after coil 50 is energized, iron core 60 is moved in adhesive, and dynamic iron core 60 is upwards movable, pulls piston assembly 30 to open by the second spring 73, thus realizes solenoid valve and open, and media implementation circulates.
When coil 50 power-off, dynamic iron core 60 closes relief hole 81 by the elastic force of the first spring 72, and medium makes epicoele 301 boost by throttle orifice 302, and solenoid valve realizes cutting out under the effect of the first spring 72 elastic force and epicoele 301 pressure.
Design focal point of the present utility model is: by being connected with the second spring between dynamic iron core and central shaft, and coordinate fixed core and coil, make this product can realize zero pressure to start, maximum pressure can reach 5Mpa, pressure range is 0 ~ 5.0Mpa, thus expand the using scope of product, bring convenience for using.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection domain by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, and these modes all will fall within protection domain of the present utility model.
Claims (4)
1. a piston electromagnetic valve, is characterized in that: include valve body, valve gap, piston assembly, fixed core, coil and dynamic iron core; Be separated to form input cavity and output cavity in this valve body, valve body be provided with the delivery outlet and the inlet opening being communicated with output cavity that are communicated with input cavity; This valve gap is arranged to enclose on valve body and with valve body and has been configured to cavity, and delivery outlet and inlet opening are all communicated with this cavity; This piston assembly can be arranged in cavity up and downly, epicoele is formed between the upper surface of piston assembly and valve gap inwall, piston assembly is provided with the throttle orifice be communicated with between delivery outlet and epicoele, piston assembly has the piston seal for shutoff inlet opening, this piston assembly is provided with central shaft, and the relief hole being formed and being communicated with between epicoele and output cavity is axially run through in the upper and lower end face of central shaft; This fixed core and coil are all arranged on valve gap, this dynamic iron core can be arranged at directly over central shaft up and downly, dynamic iron core is arranged with the first spring that iron core is resetted downwards, be connected with the second spring between this dynamic iron core and central shaft, and the lower end surface of dynamic iron core is provided with the dynamic iron core Sealing for shutoff relief hole.
2. piston electromagnetic valve as claimed in claim 1, it is characterized in that: the upper end of described central shaft is provided with the first draw-in groove, the lower end of this dynamic iron core is provided with the second draw-in groove, and the lower end of this second spring is stuck in the first draw-in groove fixing, and the upper end of the second spring is stuck in the second draw-in groove fixing.
3. piston electromagnetic valve as claimed in claim 1, it is characterized in that: described valve gap is connected with exhausted magnetic tube, this fixed core is placed in exhausted magnetic tube top and is arranged on valve gap by nut, and coil is placed on exhausted magnetic tube.
4. piston electromagnetic valve as claimed in claim 3, is characterized in that: described exhausted magnetic tube is coated at dynamic iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681687.5U CN204327991U (en) | 2014-11-15 | 2014-11-15 | Piston electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681687.5U CN204327991U (en) | 2014-11-15 | 2014-11-15 | Piston electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327991U true CN204327991U (en) | 2015-05-13 |
Family
ID=53164352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420681687.5U Expired - Fee Related CN204327991U (en) | 2014-11-15 | 2014-11-15 | Piston electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327991U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422044A (en) * | 2015-11-27 | 2016-03-23 | 中国石油天然气股份有限公司 | Simple straight-through type second-level unloading electromagnetic valve |
| CN107237896A (en) * | 2017-06-28 | 2017-10-10 | 扬中市第蝶阀厂有限公司 | A kind of Novel regulating valve |
| CN107246496A (en) * | 2017-03-29 | 2017-10-13 | 厦门建霖工业有限公司 | A kind of switching device |
| CN110621925A (en) * | 2017-05-17 | 2019-12-27 | Smc 株式会社 | Pilot-operated electromagnetic valve |
| CN114263783A (en) * | 2022-01-27 | 2022-04-01 | 刘文华 | Valve plate opening and closing type sealing device |
-
2014
- 2014-11-15 CN CN201420681687.5U patent/CN204327991U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422044A (en) * | 2015-11-27 | 2016-03-23 | 中国石油天然气股份有限公司 | Simple straight-through type second-level unloading electromagnetic valve |
| CN105422044B (en) * | 2015-11-27 | 2018-11-16 | 中国石油天然气股份有限公司 | Simple through type two-stage unloading solenoid valve |
| CN107246496A (en) * | 2017-03-29 | 2017-10-13 | 厦门建霖工业有限公司 | A kind of switching device |
| CN107246496B (en) * | 2017-03-29 | 2024-03-08 | 厦门建霖健康家居股份有限公司 | Switching device |
| CN110621925A (en) * | 2017-05-17 | 2019-12-27 | Smc 株式会社 | Pilot-operated electromagnetic valve |
| CN107237896A (en) * | 2017-06-28 | 2017-10-10 | 扬中市第蝶阀厂有限公司 | A kind of Novel regulating valve |
| CN107237896B (en) * | 2017-06-28 | 2019-06-04 | 扬中市第一蝶阀厂有限公司 | A kind of Novel regulating valve |
| CN114263783A (en) * | 2022-01-27 | 2022-04-01 | 刘文华 | Valve plate opening and closing type sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170713 Address after: The main mountain East Street 523000 Guangdong city of Dongguan province Fangxin Tian Wai Lane No. three Patentee after: Dongguan City Heidi Electric Co. Ltd. Address before: Sichuan province Zigong City artesian district Zhen Cheng Jia Cun Rong Bian 3 Group No. 13 Patentee before: Huang Jiamin |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20171115 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |