CN102345758B - Valve clack type pilot electromagnetic valve - Google Patents
Valve clack type pilot electromagnetic valve Download PDFInfo
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- CN102345758B CN102345758B CN 201110314522 CN201110314522A CN102345758B CN 102345758 B CN102345758 B CN 102345758B CN 201110314522 CN201110314522 CN 201110314522 CN 201110314522 A CN201110314522 A CN 201110314522A CN 102345758 B CN102345758 B CN 102345758B
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- clack
- valve clack
- shaft bar
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Abstract
The invention discloses a valve clack type pilot electromagnetic valve, which comprises a valve body, wherein a valve rod, a main valve clack support and a main valve clack are arranged in the valve body. The valve clack type pilot electromagnetic valve is characterized in that: a pilot device is arranged between the main valve clack support and the valve rod, and air of an air inflow cavity flows into an air outflow cavity through the pilot device. The pilot device is arranged between the main valve clack support and the valve rod, the air of the air inflow cavity can flow to the air outflow cavity through the opening of the pilot device, thus the air inflow cavity and the air outflow cavity are communicated before the main valve clack support and the main valve clack are opened, the pressure acting on the main valve clack support and the main valve clack is little, thus the acting force generated by the required electromagnetic valve when the valve is opened is reduced, the drift diameter of an electromagnetic valve coil is reduced, and the production cost of the electromagnetic valve is lowered. The valve clack type pilot electromagnetic valve has the advantages of simple structure and reliability in action.
Description
Technical field
The present invention relates to a kind of valve, particularly a kind of valve clack type pilot electromagnetic valve.
Background technique
Fig. 2 is the cross section view of old structure solenoid valve, as shown in Figure 2, after the coil 1a energising of solenoid valve, the moving magnetic attraction upwards that produces unshakable in one's determination, magnetic attraction can overcome the active force that the pressure difference of main valve clack spring 2a active force and inlet side 3a and outlet side 4a produces at main valve clack support 5a, main valve clack 6a, directly drive main valve clack support 5a, main valve clack 6a by valve rod 7a and move upward, gas flows out outlet side 4a from the flow through gap of main valve clack 6a and valve body upper valve base of valve body inlet side 3a.The active force that inlet side 3a and outlet side 4a pressure difference produce at main valve clack support 5a, main valve clack 6a is along with the latus rectum of solenoid valve increases and increases, and electromagnetic actuation force is also along with increase, and the coil 1a of solenoid valve is also along with increase.Because coil 1a accounting in the cost of solenoid valve is larger, so solenoid valve is along with latus rectum increases, and cost significantly improves.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of upward pressure that can reduce flap support and main valve clack, thereby reduced the latus rectum of electromagnetic coil, and save the solenoid valve of cost.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of valve clack type pilot electromagnetic valve comprises valve body, is provided with valve rod, main valve clack support and main valve clack in the valve body, it is characterized in that: be provided with guide device between main valve clack support and valve rod, and the gas of air-inlet cavity can flow to outlet chamber by the unlatching of guide device.
Described guide device comprises the first pod apertures that is arranged on the main valve clack support and the receiving cavity that communicates with the first pod apertures, be provided with the pilot valve shaft bar that can move up and down along the first pod apertures in the first pod apertures, and the pilot valve shaft bar is connected with valve rod, be provided with guide's flap that can seal the first pod apertures and flap baffle plate that can jack-up main valve clack support on the pilot valve shaft bar, and the flap baffle plate is arranged in receiving cavity, and the pilot valve shaft bar is provided with the resetting-mechanism that the pilot valve shaft bar is resetted.
Described resetting-mechanism comprises the Returnning spring that is arranged on the valve rod.
Be provided with spring seat in the described valve body, described Returnning spring one end top is pressed on the spring seat, and the other end top is pressed on the pilot valve shaft bar.
Described flap baffle plate is provided with the second pod apertures.
Be provided with the valve rod fixture block between described pilot valve shaft bar and valve rod, and the pilot valve shaft bar is installed on the valve rod by the valve rod fixture block.
The invention has the beneficial effects as follows: the present invention is provided with guide device between main valve clack support and valve rod, and the gas of air-inlet cavity can flow to outlet chamber by the unlatching of guide device, thereby before main valve clack support and main valve clack are opened, air-inlet cavity and outlet chamber be UNICOM, the pressure that acts on main valve clack support and main valve clack is very little, thereby the active force that needed electromagnetic coil produces when having reduced to drive valve, also reduced the latus rectum of electromagnetic coil, therefore also reduced the cost of production of solenoid valve, simple in structure, reliable in action.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is sectional view of the present invention;
Fig. 2 is the sectional view of the old structure of the present invention.
Embodiment
With reference to Fig. 1, Fig. 2, the invention discloses a kind of valve clack type pilot electromagnetic valve, comprise valve body 1, be provided with valve rod 2, main valve clack support 3 and main valve clack 4 in the valve body 1,2 of main valve clack support 3 and valve rods are provided with guide device, and the gas of air-inlet cavity 5 can flow to by the unlatching of guide device outlet chamber 6.
As shown in the figure, guide device comprises the first pod apertures 7 that is arranged on the main valve clack support 3 and the receiving cavity 18 that communicates with the first pod apertures 7, be provided with the pilot valve shaft bar 8 that can move up and down along the first pod apertures 7 in the first pod apertures 7, and pilot valve shaft bar 8 is connected with valve rod 2, be provided with guide's flap 9 that can seal the first pod apertures 7 and flap baffle plate 10 that can jack-up main valve clack support 3 on the pilot valve shaft bar 8, and flap baffle plate 10 is arranged in receiving cavity 18, in order to strengthen the gas flow output, flap baffle plate 10 is provided with the second pod apertures 11, certainly above-mentioned just preferred, gas can flow out from the gap of flap baffle plate 10 and receiving cavity 18, guide's flap 9 is fixed by the fixed groove that is arranged on guide's flap 9 supports, flap baffle plate 10 is fixed on the pilot valve shaft bar 8 by circlip for shaft 12, and pilot valve shaft bar 8 is provided with the resetting-mechanism that pilot valve shaft bar 8 is resetted.Further, 2 of pilot valve shaft bar 8 and valve rods are provided with valve rod fixture block 13, and pilot valve shaft bar 8 is installed on the valve rod 2 by valve rod fixture block 13, and concrete mode is, the fixing valve rod fixture block 13 with the U-shaped opening of riveted joint is connected with valve rod 2 by valve rod fixture block 13 again on the pilot valve shaft bar 8.
As shown in the figure, resetting-mechanism comprises the Returnning spring 14 that is arranged on the valve rod 2, is provided with spring seat 15 in the valve body 1, and Returnning spring 14 1 ends top is pressed on the spring seat 15, and the other end top is pressed on the pilot valve shaft bar 8.
Working principle of the present invention is as follows: behind the coil electricity, moving unshakable in one's determination 16 are up moved by adhesive, overcome the active force of the pressure difference generation of 6 of Returnning spring 14 active forces and gas air-inlet cavity 5 and outlet chambers, band ovable valve stem 2, pilot valve shaft bar 8, guide's flap 9, flap baffle plate 10 etc. move upward; Gas is from air-inlet cavity 5 gap through 3 on guide's flaps 9 and main valve clack support, flow through the first pod apertures 7 on the main valve clack support 3, then radially-arranged the second pod apertures 11 on flap baffle plate 10, flow to the outlet chamber 6 of valve body 1, the pressure difference between the upper and lower surface gas of main valve clack support 3 and main valve clack 4 combinations reduces; Moving unshakable in one's determination 16 continue up motion, flap baffle plate 10 contacts with main valve clack support 3, overcomes main valve clack spring 17 active forces and acts on main valve clack support 3 and move upward with the pressure that gas pressure difference on the main valve clack 4 produces and drive main valve clack support 3 and main valve clack 4; Most of gas through the gap of main valve clack 4 with valve body 1, flows to the outlet chamber 6 of valve body from valve body 1 air-inlet cavity 5, flows out valve body from outlet chamber 6;
Behind the coil blackout, 16 magnetic attractions moving unshakable in one's determination disappear, main valve clack support 3 moves downward under the effect of main valve clack spring 17 and Returnning spring 14 respectively with pilot valve shaft bar 8, main valve clack 4 compresses respectively valve body 1 and main valve clack support 3 with guide's flap 9, and air-inlet cavity 5 and outlet chamber 6 paths of valve body are cut off.
Above-mentionedly just preferred embodiments more of the present invention are illustrated and describe, but embodiments of the present invention are not restricted to the described embodiments, as long as it reaches technique effect of the present invention with essentially identical means, all should belong to protection scope of the present invention.
Claims (5)
1. valve clack type pilot electromagnetic valve, comprise valve body, be provided with valve rod in the valve body, main valve clack support and main valve clack, it is characterized in that: be provided with guide device between main valve clack support and valve rod, and the gas of air-inlet cavity can flow to outlet chamber by the unlatching of guide device, described guide device comprises the first pod apertures that is arranged on the main valve clack support and the receiving cavity that communicates with the first pod apertures, be provided with the pilot valve shaft bar that can move up and down along the first pod apertures in the first pod apertures, and the pilot valve shaft bar is connected with valve rod, be provided with guide's flap that can seal the first pod apertures and flap baffle plate that can jack-up main valve clack support on the pilot valve shaft bar, and the flap baffle plate is arranged in receiving cavity, and the pilot valve shaft bar is provided with the resetting-mechanism that the pilot valve shaft bar is resetted.
2. a kind of valve clack type pilot electromagnetic valve according to claim 1, it is characterized in that: described resetting-mechanism comprises the Returnning spring that is arranged on the valve rod.
3. a kind of valve clack type pilot electromagnetic valve according to claim 2 is characterized in that: be provided with spring seat in the described valve body, described Returnning spring one end top is pressed on the spring seat, and the other end top is pressed on the pilot valve shaft bar.
4. a kind of valve clack type pilot electromagnetic valve according to claim 1, it is characterized in that: described flap baffle plate is provided with the second pod apertures.
5. a kind of valve clack type pilot electromagnetic valve according to claim 1 is characterized in that: be provided with the valve rod fixture block between described pilot valve shaft bar and valve rod, and the pilot valve shaft bar is installed on the valve rod by the valve rod fixture block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110314522 CN102345758B (en) | 2011-10-17 | 2011-10-17 | Valve clack type pilot electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110314522 CN102345758B (en) | 2011-10-17 | 2011-10-17 | Valve clack type pilot electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102345758A CN102345758A (en) | 2012-02-08 |
| CN102345758B true CN102345758B (en) | 2013-03-06 |
Family
ID=45544693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110314522 Active CN102345758B (en) | 2011-10-17 | 2011-10-17 | Valve clack type pilot electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102345758B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4816083A (en) * | 1985-04-29 | 1989-03-28 | Wen Bangyan | Multifunctional electromagnetic valve assembly |
| CN2384046Y (en) * | 1999-07-16 | 2000-06-21 | 李汉宝 | Flow controllable piston guide type electromagnetic valve |
| CN101446357A (en) * | 2008-09-11 | 2009-06-03 | 朱振连 | Electromagnetic pilot-operated diaphragm valve |
| CN202280913U (en) * | 2011-10-17 | 2012-06-20 | 佛山市科皓燃烧设备制造有限公司 | Valve clack type pilot-operated electromagnetic valve |
-
2011
- 2011-10-17 CN CN 201110314522 patent/CN102345758B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4816083A (en) * | 1985-04-29 | 1989-03-28 | Wen Bangyan | Multifunctional electromagnetic valve assembly |
| CN2384046Y (en) * | 1999-07-16 | 2000-06-21 | 李汉宝 | Flow controllable piston guide type electromagnetic valve |
| CN101446357A (en) * | 2008-09-11 | 2009-06-03 | 朱振连 | Electromagnetic pilot-operated diaphragm valve |
| CN202280913U (en) * | 2011-10-17 | 2012-06-20 | 佛山市科皓燃烧设备制造有限公司 | Valve clack type pilot-operated electromagnetic valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102345758A (en) | 2012-02-08 |
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