CN203131105U - Pilot type control valve assembly - Google Patents
Pilot type control valve assembly Download PDFInfo
- Publication number
- CN203131105U CN203131105U CN 201320014361 CN201320014361U CN203131105U CN 203131105 U CN203131105 U CN 203131105U CN 201320014361 CN201320014361 CN 201320014361 CN 201320014361 U CN201320014361 U CN 201320014361U CN 203131105 U CN203131105 U CN 203131105U
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- China
- Prior art keywords
- pilot
- valve
- cavity
- diaphragm
- outlet pipe
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- Expired - Lifetime
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Abstract
The utility model discloses a pilot type control valve assembly which comprises a pilot valve, a membrane sheet, an elastic piece and an electromagnetic valve. A valve cavity is defined in the pilot valve, the membrane sheet is arranged in the valve cavity to divide the valve cavity into a first cavity body and a second cavity body, and a damping hole for communicating the first cavity body and the second cavity body is formed in the membrane sheet. The pilot valve is further provided with an air inlet tube, an air outlet tube, an air transport tube and an air discharge tube, wherein the second end of the air inlet tube and the second end of the air outlet tube are respectively communicated with the second cavity body, the first end of the air transport tube is communicated with the first cavity body, and the first end of the air discharge tube is communicated with the air outlet tube. The elastic piece is arranged in the valve cavity and connected with the membrane sheet to normally push the membrane sheet to close the second end of the air outlet tube. The electromagnetic valve is provided with an air inlet and an air outlet, the air inlet is connected with the second end of the air transport tube, and the air outlet is connected with the second end of the air discharge tube to communicate the air transport tube and the air discharge tube. The pilot type control valve assembly is simple in structure and convenient to check and maintain.
Description
Technical field
The utility model relates to manufacture technology field of medical appliance, particularly relates to a kind of pilot-operated type control valve assembly.
Background technique
Here the pilot valve of saying refers to two-way valve, because pressure medium acts on the flap, it is very big to want to open the pulling force that this valve needs, and must increase the power of electromagnet, and power consumption greatly like this.In order to address this problem, people have found out the leading type structure, this is a kind of method of utilizing valve medium self opened by pressure valve, such as utilizing area greater than diaphragm device, the pressure of the medium before the valve is delivered on the diaphragm, remove to open flap with this power, pilot valve is exactly a valve that flow area is very little, the unlatching of this valve is by the electromagnetic valve of a smaller power, after pilot valve is opened, utilize medium to open flap at the pressure reduction that diaphragm produces, so just can open with the electric energy of smaller power needs the very big valve of strength.Said in above-mentioned " circulation area is very little " realizes at damping hole of import design of valve body that normally because this aperture design on valve body, makes valve body structure become complicated, inspection and maintenance is very inconvenient; The uuper valve chamber of existing pilot valve all is a columniform cavity, generally all is the working life that increases diaphragm by the thickness that increases diaphragm and the material of improving diaphragm, and diaphragm is lacked necessary protective gear.
The model utility content
The utility model is intended to one of solve the problems of the technologies described above at least to a certain extent.
For this reason, a purpose of the present utility model is to propose a kind of simple in structure, inspection and maintenance pilot-operated type control valve assembly easily.
According to pilot-operated type control valve assembly of the present utility model, comprise: pilot valve and diaphragm, be limited with valve pocket in the described pilot valve, described diaphragm is located in the described valve pocket described valve pocket is divided into first cavity and second cavity, described diaphragm is provided with the damping hole that is communicated with described first cavity and described second cavity, also has suction tude on the described pilot valve, steam outlet pipe, pneumatic tube and outlet pipe, wherein, second end of described suction tude second end and described steam outlet pipe is communicated with described second cavity respectively, first end of described pneumatic tube is communicated with described first cavity, and first end of described outlet pipe is communicated with described steam outlet pipe; Elastic component, described elastic component are located to link to each other in the described valve pocket and with described diaphragm and seal second end of described steam outlet pipe with the described diaphragm of normal promotion; And solenoid valve, described solenoid valve has suction port and air outlet, and described suction port links to each other with second end of described pneumatic tube and described air outlet links to each other so that described pneumatic tube is communicated with described outlet pipe with second end of described relief opening.
According to pilot-operated type control valve assembly of the present utility model, will be provided with damping hole at diaphragm, simple in structure, inspection and maintenance convenience.
In addition, the pilot-operated type control valve assembly according to the utility model above-described embodiment can also have following additional technical characteristics:
Also be provided with blow-down pipe on the described pilot valve, also be provided with the drain that is communicated with described blow-down pipe on the described solenoid valve.
Described solenoid valve is the two-bit triplet solenoid valve.
Described two-bit triplet solenoid valve is open type/normal close type two-bit triplet solenoid valve.
Also comprise the diaphragm frame, described diaphragm is erected between described elastic component and the described diaphragm.
Described suction tude is formed on the sidewall of described pilot valve and described steam outlet pipe is formed on the diapire of described pilot valve.
Second end of described steam outlet pipe has the flange that stretches into described second cavity, has the fin suitable with described flange on the described diaphragm.
Described first cavity is roughly frustoconic shape.
Described pilot valve is open type/normal close type pilot valve.
Described elastic component is spring.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming embodiment's the description in conjunction with following accompanying drawing, wherein:
Fig. 1 is the schematic representation according to an embodiment's of the utility model pilot-operated type control valve assembly.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein identical or similar label is represented identical or similar elements or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment who is described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center "; " vertically "; " laterally "; " length "; " width "; " thickness ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", close the orientation of indications such as " counterclockwise " or position is based on orientation shown in the drawings or position relation, only be the utility model and simplification description for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " a plurality of " is two or more, unless clear and definite concrete restriction is arranged in addition.
In the utility model, unless clear and definite regulation and restriction are arranged in addition, broad understanding should be done in terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand the concrete implication of above-mentioned term in the utility model as the case may be.
In the utility model, unless clear and definite regulation and restriction are arranged in addition, first feature second feature it " on " or D score can comprise that first and second features directly contact, can comprise that also first and second features are not directly contacts but by the contact of the additional features between them.And, first feature second feature " on ", " top " and " above " comprise first feature directly over second feature and oblique upper, or only represent that the first characteristic level height is higher than second feature.First feature second feature " under ", " below " and " below " comprise first feature under second feature and tiltedly, or only represent that the first characteristic level height is less than second feature.
Describe in detail according to pilot-operated type control valve assembly of the present utility model below with reference to accompanying drawing.
As shown in Figure 1, according to pilot-operated type control valve assembly of the present utility model, comprising: pilot valve 100, diaphragm 200, elastic component 300 and solenoid valve 400.
Specifically, be limited with valve pocket 101 in the pilot valve 100.Diaphragm 200 is located in the valve pocket 101 valve pocket 101 is divided into first cavity 1011 and second cavity 1012.Diaphragm 200 is provided with the damping hole 201 that is communicated with first cavity 1011 and second cavity 1012.
Also have suction tude 102, steam outlet pipe 103, pneumatic tube 104 and outlet pipe 105 on the pilot valve 100.Wherein, second end (i.e. the upper end of steam outlet pipe 103 as shown in fig. 1) of suction tude 102 second ends (i.e. the right-hand member of suction tude 102 as shown in fig. 1) and steam outlet pipe 103 is communicated with second cavity 1012 respectively.First end of pneumatic tube 104 (i.e. the lower end of pneumatic tube 104 as shown in fig. 1) is communicated with first cavity 1011, and first end of outlet pipe 105 (i.e. the left end of outlet pipe 105 as shown in fig. 1) is communicated with steam outlet pipe 103.
Advantageously, pilot valve 100 can be open type/normal close type pilot valve.Solenoid valve 400 can be open type/normal close type two-bit triplet solenoid valve.Certainly, solenoid valve 400 is not limited to the two-bit triplet solenoid valve, also can be other forms of valves such as manually operated valve, hydraulic operated valve, pneumatic valve.
Be that normal close type and solenoid valve 400 are that normal close type two-bit triplet solenoid valve is that example is simply described the working procedure according to pilot-operated type control valve assembly of the present utility model with pilot valve 100 below.
During original state, pilot valve 100 is in closed condition.Under the active force of elastic component 300, diaphragm 200 moves downward to seal second end of steam outlet pipe 103, thereby makes pathway closure between suction tude 102 and the steam outlet pipe 103.
Working state: solenoid valve 400 electric before, the gas of band certain pressure enters from suction tude 102, arrives second cavity 1012, gas enters first cavity 1011 by damping hole 201.At this moment, second cavity 1012 equates that with the air pressure of first cavity 1011 the suffered pressure of diaphragm 200 upper and lower surfaces also equates.Pilot valve is in closed condition under the active force of elastic component 300.
According to pilot-operated type control valve assembly of the present utility model, will be provided with damping hole at diaphragm, simple in structure, inspection and maintenance is more efficient and convenient.
According to an example of the present utility model, also be provided with blow-down pipe 106 on the pilot valve 100.Also be provided with the drain 403 that is communicated with blow-down pipe 106 on the solenoid valve 400.Thus, after solenoid valve 400 dead electricity, unnecessary gas can be discharged by blow-down pipe 106.
According to an example of the present utility model, described pilot-operated type control valve assembly also comprises diaphragm frame 500.Diaphragm frame 500 is located between elastic component 300 and the diaphragm 200.Thus, can avoid contacting such as between the elastic component 300 of spring and the diaphragm 200, between elastic component 300 and diaphragm 200, play buffer function, can prolong the working life of diaphragm 200.
According to an example of the present utility model, suction tude 102 is formed on the sidewall of pilot valve 100 and steam outlet pipe 103 is formed on the diapire of pilot valve 100.Advantageously, second end of steam outlet pipe 10 has the flange 1031 that stretches into second cavity 1012, has the fin 202 suitable with flange 1031 on the diaphragm 200.Thus, can make 200 pairs of steam outlet pipes 103 of diaphragm have better sealing process.
According to an example of the present utility model, first cavity 1011 is roughly frustoconic shape.For better protection diaphragm 200 can not be damaged when working, also can be according to actual conditions at first cavity, 1011 design gas channeling grooves.Certainly, the shape of first cavity 1011 also is not limited to frustoconic shape, for example can be the cavity that has arc surface or other form curved surfaces.
Need to prove at this, as shown in Figure 1, in order to guarantee the tightness according to pilot-operated type control valve assembly of the present utility model, can between pilot valve 100 and solenoid valve 400, be provided with valve pad 600, this is understandable for the person of ordinary skill of the art.
According to pilot-operated type control valve assembly of the present utility model, because damping hole is located on the diaphragm, make overall structure simpler, inspection and maintenance is also more convenient quick
In the description of this specification, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present utility model or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiments or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art in scope of the present utility model, can change above-described embodiment under the situation that does not break away from principle of the present utility model and aim, modification, replacement and modification.
Claims (10)
1. a pilot-operated type control valve assembly is characterized in that, comprising:
Pilot valve and diaphragm, be limited with valve pocket in the described pilot valve, described diaphragm is located in the described valve pocket described valve pocket is divided into first cavity and second cavity, described diaphragm is provided with the damping hole that is communicated with described first cavity and described second cavity, also have suction tude, steam outlet pipe, pneumatic tube and outlet pipe on the described pilot valve, wherein, second end of described suction tude second end and described steam outlet pipe is communicated with described second cavity respectively, first end of described pneumatic tube is communicated with described first cavity, and first end of described outlet pipe is communicated with described steam outlet pipe;
Elastic component, described elastic component are located to link to each other in the described valve pocket and with described diaphragm and seal second end of described steam outlet pipe with the described diaphragm of normal promotion; With
Solenoid valve, described solenoid valve has suction port and air outlet, and described suction port links to each other with second end of described pneumatic tube and described air outlet links to each other so that described pneumatic tube is communicated with described outlet pipe with second end of described outlet pipe.
2. pilot-operated type control valve assembly according to claim 1 is characterized in that, also is provided with blow-down pipe on the described pilot valve, also is provided with the drain that is communicated with described blow-down pipe on the described solenoid valve.
3. pilot-operated type control valve assembly according to claim 2 is characterized in that, described solenoid valve is the two-bit triplet solenoid valve.
4. pilot-operated type control valve assembly according to claim 3 is characterized in that, described two-bit triplet solenoid valve is open type/normal close type two-bit triplet solenoid valve.
5. pilot-operated type control valve assembly according to claim 1 is characterized in that, also comprises the diaphragm frame, and described diaphragm is erected between described elastic component and the described diaphragm.
6. pilot-operated type control valve assembly according to claim 1 is characterized in that, described suction tude is formed on the sidewall of described pilot valve and described steam outlet pipe is formed on the diapire of described pilot valve.
7. pilot-operated type control valve assembly according to claim 6 is characterized in that, second end of described steam outlet pipe has the flange that stretches into described second cavity, has the fin suitable with described flange on the described diaphragm.
8. pilot-operated type control valve assembly according to claim 1 is characterized in that, described first cavity is roughly frustoconic shape.
9. pilot-operated type control valve assembly according to claim 1 is characterized in that, described pilot valve is open type/normal close type pilot valve.
10. pilot-operated type control valve assembly according to claim 1 is characterized in that, described elastic component is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014361 CN203131105U (en) | 2013-01-10 | 2013-01-10 | Pilot type control valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014361 CN203131105U (en) | 2013-01-10 | 2013-01-10 | Pilot type control valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203131105U true CN203131105U (en) | 2013-08-14 |
Family
ID=48939085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320014361 Expired - Lifetime CN203131105U (en) | 2013-01-10 | 2013-01-10 | Pilot type control valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203131105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925390A (en) * | 2013-01-10 | 2014-07-16 | 北京谊安医疗系统股份有限公司 | Piloted control valve group |
-
2013
- 2013-01-10 CN CN 201320014361 patent/CN203131105U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925390A (en) * | 2013-01-10 | 2014-07-16 | 北京谊安医疗系统股份有限公司 | Piloted control valve group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |
|
| CX01 | Expiry of patent term |