CN202302234U - Novel air flow control valve - Google Patents
Novel air flow control valve Download PDFInfo
- Publication number
- CN202302234U CN202302234U CN2011204304313U CN201120430431U CN202302234U CN 202302234 U CN202302234 U CN 202302234U CN 2011204304313 U CN2011204304313 U CN 2011204304313U CN 201120430431 U CN201120430431 U CN 201120430431U CN 202302234 U CN202302234 U CN 202302234U
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- CN
- China
- Prior art keywords
- piston
- valve body
- flow control
- control valve
- air flow
- 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 - Lifetime
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Abstract
The utility model discloses a novel air flow control valve. The novel air flow control valve comprises a valve body, a piston, a spring, a pedestal, an upper sealing ring, a middle sealing ring, a lower sealing ring, an air inlet pipe joint, an air outlet pipe joint and an atmospheric pressure signal pipe joint, wherein the valve body is of a semi-flat head conical semi-cylindrical body structure; a valve body air guide hole is formed in the center of a conical body; an atmospheric pressure hole is formed in one side of the conical body and is communicated with the valve body air guide hole; the interior of a cylindrical body is of a convex cylindrical hollow structure; and an air inlet and an air outlet are respectively formed in the upper part and the lower part of the cylindrical body; the piston is in micro clearance fit with the internal cylindrical face of the valve body; the piston and the valve body are sealed through the sealing rings; and a piston air guide hole is formed in the lower part of the piston. By adopting the novel air flow control valve, an air flow signal can be directly converted into an atmospheric pressure signal. The novel air flow control valve is simple in structure and low in cost.
Description
Technical field
The utility model relates to a kind of flow control valve, especially a kind of gas flow control valve.
Background technique
Existing gas flow control valve class all is to be electrical signal with the gas flow signal conversion, is converted into the gas pressure signal by electrical signal again, and transfer process is comparatively complicated, and the components and parts of use are more, and cost is also higher.
The model utility content
For overcoming the deficiency on the existing technology, the purpose of the utility model be to provide a kind of simple in structure, cost is low, can directly be the gas flow control valve of gas pressure signal with the gas flow signal conversion.
In order to realize the purpose of the utility model, the technological scheme of the utility model is following:
A kind of new gas flow control valve, it comprises valve body, piston, spring, base, goes up seal ring, middle seal ring, lower seal, suction tude joint, steam outlet pipe joint, air pressure signal pipe joint; Valve body is half truncated cone semicylinder structure, and the cone center has the valve body gas port, and cone one side has pressure hole, and pressure hole communicates with the valve body gas port; Cylindrical body inside is the convex cylindrical hollow structure, and cylindrical body is respectively arranged with inlet hole, air outlet hole up and down, and inlet hole and air outlet hole communicate with the top and the bottom of convex cylindrical hollow structure respectively; Matching with the valve body gas port in said piston top, matches with the last cylndrical surface of convex cylindrical hollow structure in the piston bottom.
Piston is micro-gap with the valve inner cylndrical surface and cooperates, seal ring and lower seal during middle of piston and bottom are respectively arranged with, and the piston bottom is provided with the piston gas port.
Base is the convex disks structure, is connected with the valve body bottom through bolt.
Spring housing is contained on the cylindrical body in the middle of piston and the base.
At last, last seal ring is arranged in the valve body annular groove near valve body gas port top.
The utility model can directly be air pressure signal with the gas flow signal conversion through multiple cooperation the between piston and the valve body is set, and simple in structure, easy to use, cost is low.
Description of drawings
Structural representation when Fig. 1 does not use for the utility model;
Structural representation when Fig. 2 uses for the utility model.
Description of drawings:
1, suction tude joint 2, steam outlet pipe joint 3, air pressure signal pipe joint 4, piston 5, spring 6, lower seal 7, valve body 8, base 9, middle seal ring 10, last seal ring 11, valve body gas port 12, piston air guide port 13, inlet hole 14, air outlet hole 15, pressure hole
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is explained further details.
As shown in Figure 1, this new gas flow control valve includes suction tude joint 1, steam outlet pipe joint 2, air pressure signal pipe joint 3, piston 4, spring 5, lower seal 6, valve body 7, base 8, middle seal ring 9, goes up seal ring 10, valve body gas port 11, piston air guide port 12, inlet hole 13, air outlet hole 14, pressure hole 15.
Wherein valve body 7 is half truncated cone semicylinder structure, and its top is divided into the truncated cone structure, and the bottom is divided into cylindrical structure.
The cone center has valve body gas port 11, and its effect is to let pressure hole 15 communicate with valve body 7 inside and outsides respectively.Pressure hole 15 is arranged on cone one side, and pressure hole 15 communicates with valve body gas port 11.
Cylindrical body inside is the convex cylindrical hollow structure, and cylindrical body is respectively arranged with inlet hole 13, air outlet hole 14 up and down, and inlet hole 13 communicates with the top and the bottom of convex cylindrical hollow structure respectively with air outlet hole 14.
Matching with valve body gas port 11 in piston 4 tops, matches with the last cylndrical surface of convex cylindrical hollow structure in piston 4 bottoms.Piston 4 is micro-gap with valve body 7 inner circular cylinders and cooperates, seal ring 9 and lower seal 6 during the middle part of piston 4 and bottom are respectively arranged with, and piston 4 bottoms are provided with piston gas port 12.
In the working procedure, seal through 3 seal rings 10,9,6 between piston 4 and the valve body 7.
Its embodiment is following:
Referring to Fig. 2, during use, pressurized air gets into valve body 7 inside through suction tude joint 1 and inlet hole 13; Because the effect of pressure reduction, piston 4 is depressed, and piston 4 tops contact with last seal ring 10; Valve body gas port 11 tops are closed, and pressurized air flows out through air outlet hole 14 and steam outlet pipe joint 2, and this moment, valve body 7 inner chambers communicated with pressure hole 15 through valve body gas port 11; And through air pressure signal pipe joint 3 connection air pressure signal pipelines, outwards direct transmission and air pressure signal.
When stopping using, valve body 7 inner chamber gases are through the effect of the piston gas port 12 on the piston 4, and pressure reduction disappears up and down; Under the effect of spring 5, piston 4 is by jack-up, and middle seal ring 9 is with valve body gas port 11 and the sealing of valve body 7 inner chamber joints; Can close the output pressure signal; Piston 4 tops and last seal ring 10 are thrown off simultaneously, and pressure hole 15 is in communication with the outside, and air pressure signal disappears.
The utility model can be an air pressure signal with the gas flow signal conversion directly, need use the cylinder group of compressed air-driven very easy to use for some, and traditional product has advantage simple in structure, that cost is low relatively.
More than basic principle, major character and the advantage of the utility model is described.But above-mentioned disclosed embodiment is not only.Those of ordinary skill can know that the utility model can also realize that these changes are all comprised by the utility model through the embodiment that does not break away from its essential feature.
Claims (5)
1. new gas flow control valve; It is characterized in that it comprises valve body (7), piston (4), spring (5), base (8), goes up seal ring (10), middle seal ring (9), lower seal (6), suction tude joint (1), steam outlet pipe joint (2), air pressure signal pipe joint (3); Said valve body (7) is half truncated cone semicylinder structure, and the cone center has valve body gas port (11), and cone one side has pressure hole (15), and pressure hole (15) communicates with valve body gas port (11); Cylindrical body inside is the convex cylindrical hollow structure, and cylindrical body is respectively arranged with inlet hole (13), air outlet hole (14) up and down, and inlet hole (13) and air outlet hole (14) communicate with the top and the bottom of convex cylindrical hollow structure respectively; Matching with valve body gas port (11) in said piston (4) top, matches with the last cylndrical surface of convex cylindrical hollow structure in piston (4) bottom.
2. a kind of new gas flow control valve according to claim 1; It is characterized in that; Said piston (4) is micro-gap with valve body (7) inner circular cylinder and cooperates; The middle part of piston (4) and bottom are respectively arranged with middle seal ring (9) and lower seal (6), and piston (4) bottom is provided with piston gas port (12).
3. a kind of new gas flow control valve according to claim 1 is characterized in that said base (8) is the convex disks structure, is connected with valve body (7) bottom through bolt.
4. a kind of new gas flow control valve according to claim 1 is characterized in that, said spring (5) is sleeved on the cylindrical body in the middle of piston (4) and the base (8).
5. a kind of new gas flow control valve according to claim 1 is characterized in that, the said seal ring (10) of going up is arranged in valve body (7) annular groove near valve body gas port (11) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204304313U CN202302234U (en) | 2011-11-03 | 2011-11-03 | Novel air flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204304313U CN202302234U (en) | 2011-11-03 | 2011-11-03 | Novel air flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302234U true CN202302234U (en) | 2012-07-04 |
Family
ID=46371129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204304313U Expired - Lifetime CN202302234U (en) | 2011-11-03 | 2011-11-03 | Novel air flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302234U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344058A (en) * | 2013-08-02 | 2015-02-11 | 丹尼尔测量和控制公司 | Flow control system and control valve having closure assistance |
| CN115826636A (en) * | 2023-02-16 | 2023-03-21 | 广州志橙半导体有限公司 | Pressure control method and system of CVD (chemical vapor deposition) equipment |
-
2011
- 2011-11-03 CN CN2011204304313U patent/CN202302234U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344058A (en) * | 2013-08-02 | 2015-02-11 | 丹尼尔测量和控制公司 | Flow control system and control valve having closure assistance |
| US10697558B2 (en) | 2013-08-02 | 2020-06-30 | Daniel Measurement And Control, Inc. | Flow control system and control valve having closure assistance |
| CN115826636A (en) * | 2023-02-16 | 2023-03-21 | 广州志橙半导体有限公司 | Pressure control method and system of CVD (chemical vapor deposition) equipment |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |