CN201487234U - Differential pneumatic angle seat valve - Google Patents
Differential pneumatic angle seat valve Download PDFInfo
- Publication number
- CN201487234U CN201487234U CN2009201910047U CN200920191004U CN201487234U CN 201487234 U CN201487234 U CN 201487234U CN 2009201910047 U CN2009201910047 U CN 2009201910047U CN 200920191004 U CN200920191004 U CN 200920191004U CN 201487234 U CN201487234 U CN 201487234U
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- differential
- valve
- cylinder
- pneumatic angle
- piston
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Abstract
The utility model relates to a pneumatic angle seat valve, in particular to a differential pneumatic angle seat valve. The differential pneumatic angle seat valve comprises a valve body, a piston, a plastic cylinder barrel, a return spring, an indicator, an actuating cylinder, a transparent observation window, a piston rod and a valve seat; the differential pneumatic angle seat valve adopts the main technical characteristic that a differential movable cylinder and a differential fixed piston are arranged in the valve seat, wherein one end of the differential movable cylinder is connected with the differential fixed piston, and the other end of the differential movable cylinder is connected with a guide head of the valve seat; and a balancing hole B formed on the differential movable cylinder is communicated with a balancing hole A of the guide head. By adopting the differential pneumatic angle seat valve, the flexibility and the air tightness of the valve are both enhanced; and the cylinder diameter of the actuating cylinder is greatly reduced, for example, the cylinder diameter of the valve actuating head with phi 65 is only phi 50, the compressed air consumption is reduced, and the pressure range of the controlled medium is wider.
Description
Technical field:
The utility model relates to a kind of pneumatic angle pedestal valve.
Background technique:
Because the switch of original angle pedestal valve leans on the active force of cylinder and spring to guarantee fully.Anti-water hammer base import medium though when pressurized air is relatively lower, open than being easier to.But when controlled pressure medium during greater than the precompression of spring, valve has just been opened, and has produced phenomenon out of control.If adopt seat to go up to be entry mode, when by the power that pressure produced of air dielectric during greater than power that air cylinder driven produced, valve just is not easy to open so.And traditional pneumatic angle pedestal valve, the Executive Head of cylinder is all very big.Cylinder diameter as the cylinder of the angle pedestal valve Executive Head of Φ 65 latus rectums is Φ 125.Comprehensively above-mentioned, traditional angle pedestal valve, the controlled medium of each valve all has tangible ceiling restriction.
Summary of the invention
The utility model provides a kind of principle that adopts differential type, makes valve opening flexible; And the less differential type pneumatic angle pedestal valve of execution cylinder.
The utility model is achieved by the following technical solution: a kind of differential type pneumatic angle pedestal valve, comprise valve body, piston, plastics cylinder bucket, Returnning spring, indicator, execution cylinder, transparent windows, piston rod, valve seat, its major technique feature is to be provided with differential moving cylinder, differential fixed piston in described valve seat, differential moving cylinder one end links to each other with differential fixed piston, and the other end links to each other with the valve seat guide head;
Differential moving cylinder is provided with equalizing orifice B and communicates with the guide head balance hole A.
The utility model valve has valve body, piston, plastics cylinder bucket, Returnning spring, indicator, execution cylinder, transparent windows, piston rod, differential fixed piston, differential moving cylinder, compositions such as general plug sealing ring, valve seat insert, valve seat guiding, balance hole A, equalizing orifice B.The diameter of the sealing surface of valve is DN1, and the diameter of differential moving cylinder is DN2, and the characteristics of this valve are: by the equalizing orifice 2 on guide head equalizing orifice 1 and the differential moving cylinder, flow into cylinder body as MEDIA FLOW fashionable (pressure of establishing medium is P) medium.Because it is motionless that differential fixed piston is fixed on the valve body, and the power on DN2＞DN1 (area of establishing DN1 is S1, and the area of DN2 is S2) valve seat is F=P (S2-S1), so pressure medium is high more,, active force is big more, produces locking phenomenon.Needed only greater than F and carry out the required power of cylinder, and conventional valve does not have differential type moving cylinder and differential type positioning piston.Directly have only valve head and valve seat to form.If power F＞P.DN1 that the cylinder of the enterprising medium of valve seat is required.And the required power F＞P.DN1 of the spring that advances medium under the valve.In sum, adopt the differential type angle pedestal valve to improve the flexibility and the tightness of valve.Also reduced the execution cylinder bore greatly, reduced the consumption of pressurized gas, as the cylinder diameter of the valve Executive Head of Φ 65 Φ 50, and controlled pressure medium is also more extensive.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
As shown in Figure 1, valve has valve body 7, piston 6, plastics cylinder bucket 5, Returnning spring 4, indicator 3, carries out cylinder 2, transparent windows 1, piston rod 8, differential fixed piston 9, differential moving cylinder 14, and general plug sealing ring 10, valve seat insert 11, valve seat 12, valve seat guide head 13, balance hole A 16, equalizing orifice B15 form.Be provided with differential moving cylinder, differential fixed piston in the valve seat, differential moving cylinder one end links to each other with differential fixed piston, and the other end links to each other with the valve seat guide head; Differential moving cylinder is provided with equalizing orifice B and communicates with the guide head balance hole A.
The diameter of the sealing surface of valve is DN1, and the diameter of differential moving cylinder is DN2, and the characteristics of this valve are: by the equalizing orifice B on guide head balance hole A and the differential moving cylinder, flow into cylinder body as MEDIA FLOW fashionable (pressure of establishing medium is P) medium.Because it is motionless that differential fixed piston is fixed on the valve body, and the power on DN2＞DN1 (area of establishing DN1 is S1, and the area of DN2 is S2) valve seat is F=P (S2-S1), so pressure medium is high more,, active force is big more, produces locking phenomenon.Needed only greater than F and carry out the required power of cylinder.If power F＞P.DN1 that the cylinder of the enterprising medium of valve seat is required.And the required power F＞P.DN1 of the spring that advances medium under the valve.In sum, adopt the differential type angle pedestal valve to improve the flexibility and the tightness of valve.Also reduced the execution cylinder bore greatly, reduced the consumption of pressurized gas, as the cylinder diameter of the valve Executive Head of Φ 65 Φ 50, and controlled pressure medium is also more extensive.
Claims (2)
1. differential type pneumatic angle pedestal valve, comprise valve body, piston, plastics cylinder bucket, Returnning spring, indicator, execution cylinder, transparent windows, piston rod, valve seat, it is characterized in that in described valve seat, being provided with differential moving cylinder, differential fixed piston, differential moving cylinder one end links to each other with differential fixed piston, and the other end links to each other with the valve seat guide head.
2. a kind of differential type pneumatic angle pedestal valve as claimed in claim 1 is characterized in that differential moving cylinder is provided with equalizing orifice B and communicates with the guide head balance hole A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201910047U CN201487234U (en) | 2009-08-03 | 2009-08-03 | Differential pneumatic angle seat valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201910047U CN201487234U (en) | 2009-08-03 | 2009-08-03 | Differential pneumatic angle seat valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487234U true CN201487234U (en) | 2010-05-26 |
Family
ID=42426113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201910047U Expired - Lifetime CN201487234U (en) | 2009-08-03 | 2009-08-03 | Differential pneumatic angle seat valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487234U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614282B (en) * | 2009-08-03 | 2011-09-28 | 杭州方圆塑料机械有限公司 | Differential type pneumatic angle pedestal valve |
| CN102410399A (en) * | 2011-11-14 | 2012-04-11 | 杭州方圆塑料机械有限公司 | Self-operated T-shaped pneumatic rapid cut-off valve |
-
2009
- 2009-08-03 CN CN2009201910047U patent/CN201487234U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614282B (en) * | 2009-08-03 | 2011-09-28 | 杭州方圆塑料机械有限公司 | Differential type pneumatic angle pedestal valve |
| CN102410399A (en) * | 2011-11-14 | 2012-04-11 | 杭州方圆塑料机械有限公司 | Self-operated T-shaped pneumatic rapid cut-off valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100526 Effective date of abandoning: 20090803 |