CN205479640U - Guide's piston solenoid valve - Google Patents
Guide's piston solenoid valve Download PDFInfo
- Publication number
- CN205479640U CN205479640U CN201620296832.7U CN201620296832U CN205479640U CN 205479640 U CN205479640 U CN 205479640U CN 201620296832 U CN201620296832 U CN 201620296832U CN 205479640 U CN205479640 U CN 205479640U
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- CN
- China
- Prior art keywords
- piston
- valve
- main chamber
- valve gap
- pilot head
- Prior art date
- 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 relates to a guide's piston solenoid valve, which comprises the following components: a valve body, a valve cove, a piston, movable iron core, elder generation's top guide and coil, the valve gap lid closes on valve body upper portion, elder generation's top guide is installed on valve gap upper portion, the movable iron core activity is placed in first top guide inner chamber, the coil passes in guide head portion, the piston activity is placed in the main cavity of valve body and valve gap constitution indoorly, the piston is separated the main cavity room for last main cavity room and main cavity room down, the piston bottom is equipped with first passageway, the inhalant canal of valve body goes up the main cavity room through first passageway intercommunication, vice cavity is formed with the valve gap to elder generation's top guide, it communicates with each other with vice cavity to go up the main cavity room, the inside second channel that is equipped with of valve gap, vice cavity passes through second channel intercommunication cavity down, the intercommunication of movable iron core control second channel and vice cavity.
Description
Technical field
This utility model relates to electromagnetic valve, is specifically related to a kind of guided piston type electromagnetic valve.
Background technology
Electromagnetic valve is to utilize electromagnetic principle to control fluid or the automation foundation element of gas circulation, belongs to executor, is used in industrial control system more and adjusts the direction of medium, flow, speed and other parameter.Electromagnetic valve is divided into Direct Action Type, step direct-acting type and pilot-operated type three kinds according to operation principle, wherein during guide electromagnetic valve energising, solenoid produces electromagnetic force and closure member is mentioned from valve seat, pilot valve mouth is opened, pressure differential the highest on now being formed around main valve plug, under the effect of pressure differential, fluid pressure promotes main valve plug to move up and is opened by primary valve；During power-off, electromagnetic force disappears, and closure member compresses cut out primary valve under the effect of self gravitation.The electromagnetic valve of this structure has the disadvantage that one is that two-way pressure difference is inconspicuous, and piston moves inconvenience, it sometimes appear that stuck phenomenon；Two is that structure is complicated, causes production cost high, reduces the market competitiveness；Three is that the passage transmitting pressure is usually provided at outside piston chamber, takes up room, and causes electromagnetic valve design volume relatively big, and inconvenience uses.
Utility model content
In order to the structure of prior art guide piston formula electromagnetic valve is complicated, piston moves inconvenience, the technical problem such as relatively costly and volume is big, this utility model provides following technical scheme:
A kind of guided piston type electromagnetic valve, including valve body, valve gap, piston, movable core, pilot head and coil, valve gap covers on valve body top, pilot head is arranged on valve gap top, movable core activity is positioned over pilot head inner chamber, pilot head head passes coil, piston activity is positioned in the main chamber of valve body and valve gap composition, piston separates main chamber for upper main chamber and lower main chamber, piston base is provided with first passage, the intake tunnel of valve body is by the upper main chamber of first passage connection, pilot head forms secondary cavity with valve gap, upper main chamber communicates with secondary cavity, second channel it is provided with inside valve gap, secondary cavity connects lower chambers by second channel, movable core controls the connection of second channel and secondary cavity.
As a kind of preferred version of the present utility model, the piston spring of pre-pressing is installed between piston and upper main chamber.
As a kind of preferred version of the present utility model, described coil electrical connection intervalometer.
As a kind of preferred version of the present utility model, iron core spring is installed between described movable core and pilot head.
As a kind of preferred version of the present utility model, in the middle part of described piston, it is arranged with piston ring.
As a kind of preferred version of the present utility model, the bottom of described movable core is provided with the Rubber end covering second channel.
As a kind of preferred version of the present utility model, the threaded valve gap of described pilot head.
As a kind of preferred version of the present utility model, the contact position of described pilot head and coil is provided with sealing ring.
The beneficial effects of the utility model:
1. reasonable in design, water can cause piston top and the bottom to there is certain pressure differential successively from first passage, upper main chamber, secondary cavity, second channel, the circulation of main lower chambers, move piston flexibly, fast open valve port；
2. the piston spring of pre-pressing drives piston to compress valve port under normal conditions, prevents from causing leakage because piston has been rushed excessive hydraulic pressure, it addition, after movable core closes second channel, piston spring can fast driving piston reset；
3. the layout designs of passage and chamber is reasonable, takes full advantage of piston chamber and the cooperation of piston base first passage, eliminates the space offering pipelined channel at other positions of electromagnetic valve, saves material and reduces cost；
4. the contact position of pilot head and coil is provided with sealing ring, prevents the aqueous vapor of humidity from entering coil inside, increases service life.
Accompanying drawing explanation
Fig. 1 is axonometric chart of the present utility model；
Fig. 2 is exploded view of the present utility model；
Fig. 3 is half sectional view of the present utility model.
In figure, 1 valve body, 2 valve gaps, 3 pistons, 4 movable cores, 5 pilot head, 6 coils, main chamber on 71,72 times main chamber, 73 secondary cavities, 81 first passages, 82 second channels, 9 piston springs, 10 intervalometers.
Detailed description of the invention
Below in conjunction with the accompanying drawings, as a example by the water transmission medium as electromagnetic valve, detailed description of the invention of the present utility model is described further:
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be for only for ease of description this utility model and simplifying and describe; rather than instruction or imply the position of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition can be regarded and understand above-mentioned term concrete meaning in the present invention.
As depicted in figs. 1 and 2, a kind of guided piston type electromagnetic valve, including valve body 1, valve gap 2, piston 3, movable core 4, pilot head 5 and coil 6, valve gap 2 covers on valve body 1 top, pilot head 5 is arranged on valve gap 2 top, movable core 4 activity is positioned over pilot head 5 inner chamber, and pilot head 5 head passes coil 6, and piston 3 activity is positioned in the main chamber of valve body 1 and valve gap 2 composition.
Concrete, as shown in Figure 3, 3 main chamber of piston separate for upper main chamber 71 and lower main chamber 72, upper main chamber 71 is positioned at valve gap 2, lower main chamber 72 is positioned at valve body 1, lower main chamber 72 is valve port with the contact position of piston 3, first passage 81 it is provided with bottom piston 3, the intake tunnel of valve body 1 is by the upper main chamber 71 of first passage 81 connection, pilot head 4 and valve gap 2 form secondary cavity 73, secondary cavity 73 is positioned at main chamber 71 top, upper main chamber 71 communicates with secondary cavity 73, valve gap 2 is internal is provided with second channel 82, secondary cavity 73 is by the lower main chamber 72 of second channel 82 connection, the bottom of movable core 4 is provided with the Rubber end covering second channel 82.
Being provided with the piston spring 9 of pre-pressing between piston 3 and upper main chamber 71, under normality, piston spring 9 applies downward spring force to piston 3, orders about piston 3 and compresses the valve port of valve body 1, prevents excessive hydraulic pressure from piston 3 has been rushed, causes leakage；Movable core 4 first rises a period of time when blocking second channel 82 again, and piston spring 9 drives piston 3 quickly to move down reset.
Coil 6 electrically connects intervalometer 10, can preset conduction time and the cycle of coil at intervalometer 10, thus control the keying of electromagnetic valve.Iron core spring is installed, when, after coil 6 power-off, iron core Spring driving movable core 4 quickly moves down reset between movable core 4 and pilot head 5.It is arranged with piston ring, it is ensured that be above not communicated with between main chamber 71 and lower main chamber 72, it is ensured that pressure reduction is inconsistent up and down in the middle part of piston 3.The bottom of movable core 4 is provided with the Rubber end covering second channel 82, and Rubber end has good air-tightness, it is ensured that water will not be flowed into second channel 82 from the gap between movable core 4 and valve gap 2.The threaded valve gap of pilot head 52, pilot head 5 hollow, it is internal that movable core 4 is positioned over pilot head 5, and movable core 4 can move up and down along pilot head 5.The contact position of pilot head 5 and coil 6 is provided with sealing ring, prevents steam from entering coil 6, corrosion coil 6, reduction of service life from the gap between pilot head 5 and coil 6.
Operation principle of the present utility model: when electromagnetic valve to be opened, coil 6 is energized, move on pilot head 5 magnetic absorption movable core 4, movable core 4 no longer compresses closedown second channel 82, water flows into first passage 81 from the intake tunnel of valve body 1, Your Majesty's chamber 71 is flowed into again from first passage 81, secondary cavity 73 is flowed into from Your Majesty's chamber 71, second channel 82 is flowed into from secondary cavity 73, main lower chambers 72 is flowed to from second channel 82, high low pressure differential in the presence of Your Majesty's chamber 71 and main lower chambers 72, move on piston 3, open valve, the direct intake tunnel of water flows into main lower chambers；When wanting close port, coil 6 power-off, movable core 4 resets to compress under the active force of iron core spring and closes second channel 82, and piston 3 moves down closedown valve under the driving of self gravitation and piston spring 9.
Above content is to combine concrete preferred implementation further detailed description of the utility model; it cannot be assumed that of the present utility model being embodied as is confined to these explanations; for this utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; some simple deduction or replace can also be made, all should be considered as belonging to protection domain of the present utility model.
Claims (8)
1. a guided piston type electromagnetic valve, including valve body, valve gap, piston, movable core, pilot head and coil, valve gap covers on valve body top, pilot head is arranged on valve gap top, movable core activity is positioned over pilot head inner chamber, pilot head head passes coil, it is characterized in that: piston activity is positioned in the main chamber of valve body and valve gap composition, piston separates main chamber for upper main chamber and lower main chamber, piston base is provided with first passage, the intake tunnel of valve body is by the upper main chamber of first passage connection, pilot head forms secondary cavity with valve gap, upper main chamber communicates with secondary cavity, second channel it is provided with inside valve gap, secondary cavity connects lower chambers by second channel, movable core controls the connection of second channel and secondary cavity.
A kind of guided piston type electromagnetic valve the most according to claim 1, it is characterised in that: the piston spring of pre-pressing is installed between piston and upper main chamber.
A kind of guided piston type electromagnetic valve the most according to claim 1, it is characterised in that: described coil electrical connection intervalometer.
A kind of guided piston type electromagnetic valve the most according to claim 1, it is characterised in that: iron core spring is installed between described movable core and pilot head.
A kind of guided piston type electromagnetic valve the most according to claim 1, it is characterised in that: it is arranged with piston ring in the middle part of described piston.
A kind of guided piston type electromagnetic valve the most according to claim 1, it is characterised in that: the bottom of described movable core is provided with the Rubber end covering second channel.
A kind of guided piston type electromagnetic valve the most according to claim 1, it is characterised in that: the threaded valve gap of described pilot head.
A kind of guided piston type electromagnetic valve the most according to claim 1, it is characterised in that: the contact position of described pilot head and coil is provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296832.7U CN205479640U (en) | 2016-04-11 | 2016-04-11 | Guide's piston solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296832.7U CN205479640U (en) | 2016-04-11 | 2016-04-11 | Guide's piston solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479640U true CN205479640U (en) | 2016-08-17 |
Family
ID=56644973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620296832.7U Expired - Fee Related CN205479640U (en) | 2016-04-11 | 2016-04-11 | Guide's piston solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479640U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072039A1 (en) * | 2016-10-21 | 2018-04-26 | Challen Paul | Safety valve |
| CN107990039A (en) * | 2017-12-29 | 2018-05-04 | 深圳市摩控自动化设备有限公司 | Electromagnetic valve guide device and there is its intrinsic safety electromagnetic valve of explosion isolation |
-
2016
- 2016-04-11 CN CN201620296832.7U patent/CN205479640U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072039A1 (en) * | 2016-10-21 | 2018-04-26 | Challen Paul | Safety valve |
| CN107990039A (en) * | 2017-12-29 | 2018-05-04 | 深圳市摩控自动化设备有限公司 | Electromagnetic valve guide device and there is its intrinsic safety electromagnetic valve of explosion isolation |
| CN107990039B (en) * | 2017-12-29 | 2023-12-08 | 深圳市摩控自动化设备有限公司 | Electromagnetic valve pilot device and intrinsic safety explosion-proof electromagnetic valve with same |
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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: 20160817 Termination date: 20180411 |