CN203395307U - Pneumatic overflow valve - Google Patents
Pneumatic overflow valve Download PDFInfo
- Publication number
- CN203395307U CN203395307U CN201220568000.8U CN201220568000U CN203395307U CN 203395307 U CN203395307 U CN 203395307U CN 201220568000 U CN201220568000 U CN 201220568000U CN 203395307 U CN203395307 U CN 203395307U
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- CN
- China
- Prior art keywords
- valve
- valve pocket
- lower shell
- spool
- push rod
- 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 pneumatic overflow valve. The pneumatic overflow valve comprises a valve body, a valve seat, a valve core and a valve sleeve, wherein a valve cavity, as well as an inlet and an outlet which are mutually vertical, and communicated with the valve cavity are formed in the valve body; the valve seat is arranged in the valve cavity and in sealing connection with the valve body; the valve sleeve is provided with an axial through hole, and a radial through hole communicated with the axial through hole; one end of the valve sleeve is connected with the valve seat; the radial through hole is communicated with the valve cavity; the valve sleeve is in threaded sealing connection with the valve body; the valve core is arranged in the axial through hole and in slide sealing connection with the valve sleeve; the other end of the valve sleeve is connected with a pneumatic housing; the pneumatic housing is formed by connecting an upper shell with a lower shell in a buckling manner; a packing cup is arranged in the pneumatic housing; the edge of the packing cup is in sealing connection with the upper shell and the lower shell; the upper shell is provided with an air inlet; a press plate is arranged between the packing cup and the lower shell; an ejection rod is connected to the press plate; the ejection rod stretches out from the lower part of the lower shell and is connected with the valve core; a return spring is arranged between the press plate and the lower shell; and the air inlet is connected with a gas pressure-reducing valve. The pneumatic overflow valve disclosed by the utility model is simple and compact in structure, and easy to maintain.
Description
Technical field
The utility model relates to valve technology field, specifically a kind of actuated overflow valve.
Background technique
In sleeve pipe tightness, detect in operation, with high-pressure service pump, object gas is pressurizeed, after arriving authorized pressure, stop pressurization, then the tightness of sleeve pipe is detected.If pressure is greater than setup pressure value, just may cause damage to sleeve pipe, equipment, even personnel damage.Therefore,, for this problem, some opinions are installed a safety valve, to pressure is controlled.But existingly for controlling the safety valve of gas pressure, be not suitable for detecting operation in sleeve pipe tightness and apply.
In view of this, the inventor is actively studied and is innovated, and has finally invented a kind of actuated overflow valve of novel structure, makes it more have practicability.
Model utility content
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of actuated overflow valve, has simple in structurely, is easy to the feature of controlling.
In order to solve the problems of the technologies described above, the utility model has adopted following technological scheme:
Actuated overflow valve, comprise valve body, valve seat, spool and valve pocket, wherein on valve body, there is valve pocket, entrance and exit, entrance and the vertical setting of outlet, and be communicated with respectively valve pocket, valve seat is arranged in valve pocket and is connected with valve seal, the radial direction through hole that valve pocket has axial hole and communicates with axial hole, one end of valve pocket is stretched into valve pocket and is connected with valve seat from the opposite end of entrance, radial direction through hole communicates with valve pocket, valve pocket and valve body screw thread are tightly connected, spool is located in the axial hole of valve pocket, spool is connected with valve pocket slipper seal, the other end of valve pocket is connected with pneumatic housing, pneumatic housing is formed by upper shell and lower shell body snapping, in pneumatic housing, be provided with leather cup, the edge of leather cup is sandwiched between upper shell and lower shell body and forms and be tightly connected, upper shell has suction port, lower shell body has push rod outlet, between leather cup and lower shell body, be provided with platen, on platen, be connected with push rod, push rod stretches out with spool and is connected from push rod outlet, between platen and lower shell body, be provided with Returnning spring, the suction port of upper shell is connected with gas pressure reducer.
Further, described valve pocket is connected with pneumatic housing by link, and valve pocket is threaded with link, and link and lower shell body are bolted.
Further, between described valve seat and valve body, be provided with seal ring.
Further, between described valve pocket and valve body, be provided with seal ring.
Further, between described spool and valve pocket, be provided with seal ring.
Further, the edge of described leather cup has boss, and described boss is stuck in the outer side of upper shell and lower shell body.
Further, described push rod is threaded with platen or welds.
Further, described push rod is threaded with spool.
Compared with prior art, the beneficial effects of the utility model are:
Actuated overflow valve arrangement of the present utility model is simple, is easy to operate and control, and Safety performance is high.And pressure control range is adjustable, applied widely.
Accompanying drawing explanation
Fig. 1 is that the structure of actuated overflow valve of the present utility model is cutd open figure.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as to restriction of the present utility model.
Fig. 1 is that the structure of actuated overflow valve of the present utility model is cutd open figure.As Fig. 1, actuated overflow valve, comprises valve body 1, valve seat 2, spool 3 and valve pocket 4, wherein on valve body 1, has valve pocket 101, entrance 102 and exports 103.Entrance 102 and outlet 103 vertical settings, and be communicated with respectively valve pocket 101.Valve seat 2 is arranged in valve pocket 101 and is tightly connected with valve body 1.The radial direction through hole 402 that valve pocket 4 has axial hole and communicates with axial hole 401.One end of valve pocket 4 is stretched into valve pocket 101 and is connected with valve seat 2 from entrance 102 opposite end, radial direction through hole 402 communicates with valve pocket 101.Valve pocket 4 is connected with valve body 1 thread seal.Spool 3 is located in the axial hole 401 of valve pocket 4, and spool 3 is connected with valve pocket 4 slipper seals.The other end of valve pocket 4 is connected with pneumatic housing 5, and pneumatic housing 5 is formed by upper shell 501 and lower shell body 502 snappings, is provided with leather cup 6 in pneumatic housing 5.The edge of leather cup 6 is sandwiched between upper shell 501 and lower shell body 502 and forms and be tightly connected.Upper shell 501 has suction port 511.Lower shell body 502 has push rod outlet, between leather cup 6 and lower shell body 502, be provided with platen 7, be connected with push rod 8 on platen 7, push rod 8 stretches out with spool 3 and is connected from push rod outlet, between platen 7 and lower shell body 502, be provided with Returnning spring 9, the suction port 511 of upper shell 501 is connected with gas pressure reducer 12.
As preferably, valve pocket 4 is connected with pneumatic housing 5 by link 10, and valve pocket 4 is threaded with link 10, and link 10 and lower shell body 502 are bolted.Adopt hexagon socket head cap screw.Between valve seat 2 and valve body 1, between valve pocket 4 and valve body 1 and be equipped with seal ring 11 between spool 3 and valve pocket 4.Wherein on the excircle of spool 3, there are two annular seal grooves, seal ring 11 is set in annular seal groove.The edge of leather cup 6 has boss 601, and boss 601 is stuck in the outer side of upper shell 501 and lower shell body 502.Further avoid leather cup and upper shell 501 and lower shell body 502 accidental, guaranteed stable sealing.Push rod 8 is threaded or welds with platen 7.Push rod 8 is threaded with spool 3.Push rod 8 has outside thread, and spool 3 has internal thread.Push rod 8 and spool 3 also can be connected by other the mode such as interference fit.
As shown in Figure 1, because suction port 511 passes into the gas of certain pressure, so when compressing leather cup 6, platen 7, Returnning spring 9 and push rod 8, and then push rod 8 makes spool 3 contact with valve seat 2, in by state.When the pressure at import 102 places reaches setting value, the pressure at import 102 places is by spool 3 tops from valve seat 2, and import 102 and outlet 103 conductings, realize pressure release.When pressure reaches after safety value, spool 3 contacts with valve seat 2 under the effect of suction port pressure, recovers by state.
Above embodiment is only exemplary embodiment of the present utility model, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, this modification or be equal to replacement and also should be considered as dropping in protection domain of the present utility model.
Claims (8)
1. actuated overflow valve, comprise valve body, valve seat, spool and valve pocket, it is characterized in that, wherein on valve body, there is valve pocket, entrance and exit, entrance and the vertical setting of outlet, and be communicated with respectively valve pocket, valve seat is arranged in valve pocket and is connected with valve seal, the radial direction through hole that valve pocket has axial hole and communicates with axial hole, one end of valve pocket is stretched into valve pocket and is connected with valve seat from the opposite end of entrance, radial direction through hole communicates with valve pocket, valve pocket and valve body screw thread are tightly connected, spool is located in the axial hole of valve pocket, spool is connected with valve pocket slipper seal, the other end of valve pocket is connected with pneumatic housing, pneumatic housing is formed by upper shell and lower shell body snapping, in pneumatic housing, be provided with leather cup, the edge of leather cup is sandwiched between upper shell and lower shell body and forms and be tightly connected, upper shell has suction port, lower shell body has push rod outlet, between leather cup and lower shell body, be provided with platen, on platen, be connected with push rod, push rod stretches out with spool and is connected from push rod outlet, between platen and lower shell body, be provided with Returnning spring, the suction port of upper shell is connected with gas pressure reducer.
2. actuated overflow valve according to claim 1, is characterized in that, described valve pocket is connected with pneumatic housing by link, and valve pocket is threaded with link, and link and lower shell body are bolted.
3. actuated overflow valve according to claim 1, is characterized in that, between described valve seat and valve body, is provided with seal ring.
4. actuated overflow valve according to claim 1, is characterized in that, between described valve pocket and valve body, is provided with seal ring.
5. actuated overflow valve according to claim 1, is characterized in that, between described spool and valve pocket, is provided with seal ring.
6. actuated overflow valve according to claim 1, is characterized in that, the edge of described leather cup has boss, and described boss is stuck in the outer side of upper shell and lower shell body.
7. actuated overflow valve according to claim 1, is characterized in that, described push rod is threaded with platen or welds.
8. actuated overflow valve according to claim 1, is characterized in that, described push rod is threaded with spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220568000.8U CN203395307U (en) | 2012-10-31 | 2012-10-31 | Pneumatic overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220568000.8U CN203395307U (en) | 2012-10-31 | 2012-10-31 | Pneumatic overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395307U true CN203395307U (en) | 2014-01-15 |
Family
ID=49906840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220568000.8U Expired - Lifetime CN203395307U (en) | 2012-10-31 | 2012-10-31 | Pneumatic overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223866A (en) * | 2017-12-05 | 2018-06-29 | 温州诺盟科技有限公司 | A kind of constant pressure valve |
-
2012
- 2012-10-31 CN CN201220568000.8U patent/CN203395307U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223866A (en) * | 2017-12-05 | 2018-06-29 | 温州诺盟科技有限公司 | A kind of constant pressure valve |
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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: 20140115 |
|
| CX01 | Expiry of patent term |