CN203906964U - Novel pilot solenoid valve - Google Patents
Novel pilot solenoid valve Download PDFInfo
- Publication number
- CN203906964U CN203906964U CN201420320037.8U CN201420320037U CN203906964U CN 203906964 U CN203906964 U CN 203906964U CN 201420320037 U CN201420320037 U CN 201420320037U CN 203906964 U CN203906964 U CN 203906964U
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- valve
- pilot
- iron core
- valve seat
- guide assembly
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Abstract
The utility model relates to the technical field of solenoid valves, in particular to a novel pilot solenoid valve. The novel pilot solenoid valve comprises a valve body and a pilot component, a valve rod is arranged in a valve cavity of the valve body, an upper diaphragm and a lower diaphragm are respectively connected with the valve body, a balance hole is formed in the lower diaphragm, a valve cover is arranged at the upper end of the valve body, and a first air channel hole communicated with the valve cavity is formed in the valve cover. The pilot component is arranged on the valve cover in a connecting mode, a pilot hole communicated with the first air channel hole is formed in the pilot component, an adjusting bolt is arranged on the pilot component, the adjusting bolt is in screw joint with the pilot component, the front end of the adjusting bolt penetrates in the pilot hole, and a silencer is arranged on an exhaust port of the pilot component. The novel pilot solenoid valve is reasonable in structure, main valve bodies are switched through the pressure difference of the upper diaphragm and the lower diaphragm, the problem that a sealing ring working without oil heats, and the main valve bodies are clamped is solved, operating is stable, and noise is low. An adjustable valve is adopted by the pilot component to control the switching speed of the main valve bodies, the switching sensitivity of the pilot valve is improved, response time is reduced, use is flexible, and the application pressure range is larger.
Description
Technical field
The utility model relates to Solenoid Valve Technology field, particularly pilot solenoid valve.
Background technique
The solenoid valve using on medical equipment at present generally adopts slide column type structure, first guide assembly energising on solenoid valve makes the pressure release of valve body epicoele, the fluid input internal chamber of valve body forms upper and lower pressure difference, and then under the effect of pressure difference, promotes main valve plug move unlatching work valve port by hydrodynamic pressure; During first guide assembly power-off, under the double action of gravity and spring force, valve body upper cavity pressure strengthens and then fluid promotion main valve plug is closed work valve port downwards.But the working pressure of medical oxygenerator often approaches the critical value of solenoid valve, this slide column type solenoid valve easily impacts and lost efficacy because of pressure surge, source of the gas can not contain under the occasion of lubricant oil and uses, frequent switching easily causes valve body temperature to rise, it is dumb that main valve switches, and Sealing expands and makes that main valve is stuck causes equipment failure; First guide assembly starts air pressure can not be adjusted, and uses underaction.
Model utility content
The purpose of this utility model is for the defect of prior art and deficiency, and a kind of compact structure, pilot solenoid valve easy to use are provided.
For achieving the above object, the utility model is by the following technical solutions:
Pilot solenoid valve described in the utility model, comprise valve body and first guide assembly, in described valve body, form valve pocket, in valve pocket, be provided with valve rod, valve rod two ends are provided with upper and lower diaphragm, upper and lower diaphragm is respectively at having equalizing orifice on valve body connection and lower diaphragm, and valve body upper end is provided with valve gap, and valve gap is provided with the air flue hole one that is communicated with valve pocket; Described first guide assembly is connected on valve gap, and first guide assembly is provided with the pilot hole that is communicated with air flue hole one, and first guide assembly is provided with regulation cock, and regulation cock and first guide assembly are spirally connected, and the front end of regulation cock is arranged in pilot hole, the relief opening of first guide assembly is provided with baffler.
Further, described first guide assembly comprises valve seat, support and coiling, valve seat is connected on valve gap outer side surface, and on the sidewall of valve seat, have the air flue hole two being communicated with air flue hole one, described pilot hole is located on the base plate of valve seat, and regulation cock is located at a side and the regulation cock front end of valve seat and is located in pilot hole through valve seat; One end of described support is connected at the opposite side of valve seat, in support, be provided with moving iron core and static iron core, static iron core is fixedly connected with the support the other end, and moving iron core is located between valve seat and static iron core, between moving iron core and support, be provided with spring, coiling is sheathed in the outer rim of support.
Further, between described regulation cock and valve seat, be provided with seal ring.
Further, on described static iron core, offer bleeder port, baffler comprises noise reduction nut and silencing cotton, and noise reduction nut is bolted in static iron core outer end, and silencing cotton is located between noise reduction nut and bleeder port port.
Further, the static iron core end face of described bleeder port inner end is provided with cone-shaped air tap, and the pilot hole port of the inboard face of valve seat is provided with cone-shaped air tap, in the both ends of the surface of moving iron core, is equipped with the plug coordinating with cone-shaped air tap.
The utility model beneficial effect is: the utility model is rational in infrastructure, and main valve is realized and being switched by upper and lower diaphragm pressure difference, avoids the seal ring heating being operated in without under oil condition to cause the stuck problem of main valve, and the noise that operates steadily is little; First guide assembly adopts adjustable gas gate control main valve switching rate, improves pilot valve and switches sensitivity and reduce the response time, uses flexible Application pressure range larger.
Accompanying drawing explanation
Fig. 1 is whole interior structural representation of the present utility model.
In figure:
1, valve body; 11, valve pocket; 12, valve rod; 13, diaphragm;
14, equalizing orifice; 2, valve gap; 21, air flue hole one; 3, valve seat;
31, pilot hole; 32, air flue hole two; 33, regulation cock; 34, support;
35, coiling; 36, moving iron core; 37, static iron core; 38, spring;
39, bleeder port; 40, noise reduction nut; 41, silencing cotton; 42, cone-shaped air tap;
43, plug.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Pilot solenoid valve described in the utility model, comprise valve body 1 and first guide assembly, in described valve body 1, form valve pocket 11, in valve pocket 11, be provided with valve rod 12, valve rod 12 two ends are provided with upper and lower diaphragm 13, upper and lower diaphragm 13 is respectively at having equalizing orifice 14 on valve body 1 connection and lower diaphragm 13, and valve body 1 upper end is provided with valve gap 2, and valve gap 2 is provided with the air flue hole 1 that is communicated with valve pocket 11, described first guide assembly is connected on valve gap 2, and first guide assembly is provided with the pilot hole 31 that is communicated with air flue hole 1, first guide assembly is provided with regulation cock 33, regulation cock 33 is spirally connected with first guide assembly, and the front end of regulation cock 33 is arranged in pilot hole 31, the relief opening of first guide assembly is provided with baffler, described valve pocket 11 is connected with work air pump, pressurized gas enters lower diaphragm 13 belows by equalizing orifice 14 after entering valve pocket 11, thereby promote the work gas circuit of valve rod 12 rising switching valves 1, after first guide assembly energising, by pilot hole 31, be communicated with the valve pocket 11 of upper diaphragm 13 tops, and thereby the compression area of upper diaphragm 13 is greater than lower diaphragm 13 promotion valve rods 12 declines, thereby switch the work gas circuit of valve pocket 11, described regulation cock 33 front ends are located in pilot hole 31, by changing the cross section flow of pilot hole 31, thereby change the response sensitivity of first guide assembly and the switching rate of raising valve rod 12.
Above-mentioned first guide assembly comprises valve seat 3, support 34 and coiling 35, valve seat 3 is connected on valve gap 2 outer side surfaces, and on the sidewall of valve seat 3, have the air flue hole 2 32 being communicated with air flue hole 1, described pilot hole 31 is located on the base plate of valve seat 3, and regulation cock 33 is located at a side and regulation cock 33 front ends of valve seat 3 and is located in pilot hole 31 through valve seat 3; One end of described support 34 is connected at the opposite side of valve seat 3, in support 34, be provided with moving iron core 36 and static iron core 37, static iron core 37 is fixedly connected with support 34 the other ends, moving iron core 36 is located between valve seat 3 and static iron core 37, between moving iron core 36 and support 34, be provided with spring 38, coiling 35 is sheathed in the outer rim of support 34.
Between above-mentioned regulation cock 33 and valve seat 3, be provided with seal ring, thereby seal ring is avoided pilot hole 31 air leakage failure for the tightness improving between regulation cock 33 and valve seat 3.
On above-mentioned static iron core 37, offer bleeder port 39, baffler comprises noise reduction nut 40 and silencing cotton 41, noise reduction nut 40 is bolted in static iron core 37 outer ends, and silencing cotton 41 is located between noise reduction nut 40 and bleeder port 39 ports, the interior gas of valve pocket 11 of upper diaphragm 13 tops through air flue hole 1, support 34 inner chambers, bleeder port 39 discharge, the effect by silencing cotton 41 alleviates the noise that exhaust produces.
Static iron core 37 end faces of above-mentioned bleeder port 39 inner ends are provided with cone-shaped air tap 42, and pilot hole 31 ports of valve seat 3 inboard faces are provided with cone-shaped air tap 42, in the both ends of the surface of moving iron core 36, are equipped with the plug 43 coordinating with cone-shaped air tap 42.
The above is only better embodiment of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (5)
1. pilot solenoid valve, comprise valve body (1) and first guide assembly, it is characterized in that: in described valve body (1), form valve pocket (11), in valve pocket (11), be provided with valve rod (12), valve rod (12) two ends are provided with upper and lower diaphragm (13), upper and lower diaphragm (13) is respectively at having equalizing orifice (14) on valve body (1) connection and lower diaphragm (13), valve body (1) upper end is provided with valve gap (2), and valve gap (2) is provided with the air flue hole one (21) that is communicated with valve pocket (11); Described first guide assembly is connected on valve gap (2), and first guide assembly is provided with the pilot hole (31) that is communicated with air flue hole one (21), first guide assembly is provided with regulation cock (33), regulation cock (33) is spirally connected with first guide assembly, and the front end of regulation cock (33) is arranged in pilot hole (31), and the relief opening of first guide assembly is provided with baffler.
2. pilot solenoid valve according to claim 1, it is characterized in that: described first guide assembly comprises valve seat (3), support (34) and coiling (35), valve seat (3) is connected on valve gap (2) outer side surface, and on the sidewall of valve seat (3), have the air flue hole two (32) being communicated with air flue hole one (21), described pilot hole (31) is located on the base plate of valve seat (3), and regulation cock (33) is located at a side and regulation cock (33) front end of valve seat (3) and is located in pilot hole (31) through valve seat (3); One end of described support (34) is connected at the opposite side of valve seat (3), in support (34), be provided with moving iron core (36) and static iron core (37), static iron core (37) is fixedly connected with support (34) the other end, moving iron core (36) is located between valve seat (3) and static iron core (37), between moving iron core (36) and support (34), be provided with spring (38), coiling (35) is sheathed in the outer rim of support (34).
3. pilot solenoid valve according to claim 2, is characterized in that: between described regulation cock (33) and valve seat (3), be provided with seal ring.
4. pilot solenoid valve according to claim 2, it is characterized in that: on described static iron core (37), offer bleeder port (39), baffler comprises noise reduction nut (40) and silencing cotton (41), noise reduction nut (40) is bolted in static iron core (37) outer end, and silencing cotton (41) is located between noise reduction nut (40) and bleeder port (39) port.
5. pilot solenoid valve according to claim 4, it is characterized in that: static iron core (37) end face of described bleeder port (39) inner end is provided with cone-shaped air tap (42), pilot hole (31) port of the inboard face of valve seat (3) is provided with cone-shaped air tap (42), in the both ends of the surface of moving iron core (36), is equipped with the plug (43) coordinating with cone-shaped air tap (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420320037.8U CN203906964U (en) | 2014-06-16 | 2014-06-16 | Novel pilot solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420320037.8U CN203906964U (en) | 2014-06-16 | 2014-06-16 | Novel pilot solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906964U true CN203906964U (en) | 2014-10-29 |
Family
ID=51781242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420320037.8U Active CN203906964U (en) | 2014-06-16 | 2014-06-16 | Novel pilot solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333206A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Novel pneumatic control valve capable of eliminating noise |
| CN105351277A (en) * | 2015-10-29 | 2016-02-24 | 刘小祥 | Guidance structure controlled by stepping motor |
-
2014
- 2014-06-16 CN CN201420320037.8U patent/CN203906964U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333206A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Novel pneumatic control valve capable of eliminating noise |
| CN105351277A (en) * | 2015-10-29 | 2016-02-24 | 刘小祥 | Guidance structure controlled by stepping motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |