CN204140991U - Reduction valve flap assembly - Google Patents
Reduction valve flap assembly Download PDFInfo
- Publication number
- CN204140991U CN204140991U CN201420588390.4U CN201420588390U CN204140991U CN 204140991 U CN204140991 U CN 204140991U CN 201420588390 U CN201420588390 U CN 201420588390U CN 204140991 U CN204140991 U CN 204140991U
- Authority
- CN
- China
- Prior art keywords
- flap
- sealing
- pressure ring
- groove
- reduction valve
- 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 - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model relates to a kind of reduction valve flap assembly, be made up of flap, Sealing, flap thimble and pressure ring, it is characterized in that flap and flap thimble are structure as a whole, groove is had around circumference in the upper-end surface of flap, groove notch both sides of the edge place is provided with the inside and outside flange that can fold in notch, be provided with the pressure ring of Sealing and fixing seals in groove, pressure ring is fixed by the inside and outside flange being converted into 90 degree.Be characterized in: structure is simple, save material, Sealing is installed fixing simple and reliable, and good seal performance, ensure that reduction valve safe and reliable operation, avoid low temperature leak.
Description
Technical field
The utility model relates to a kind of relief valve component, particularly a kind of reduction valve flap assembly.
Background technique
Be widely used in the reduction valve on rock gas, industrial gas equipment Pipe-Line, mainly contain valve body, valve gap, base, upper locating pad, lower locating pad, flap, spring, adjusting screw composition.Flap Sealing is offset plate or teflon, and Sealing is arranged on flap, is jointly fixed by Sealing by the pressure ring be connected with flap outside thread and the flap thimble be connected with flap internal thread, forms flap assembly.The flap modular construction more complicated of this reduction valve, flap Sealing and pressure ring easily shrink distortion under cryogenic, it is loosening that the vibration that flap produces at the volley easily causes flap and being threaded between pressure ring, flap thimble to produce, cause flap Sealing to be revealed in conjunction with defective tightness with flap, affect the reliability of reduction valve.
Summary of the invention
The purpose of this utility model is to provide that a kind of structure is simple, the reduction valve flap assembly of reliable performance.
Technical solution of the present utility model is: a kind of reduction valve flap assembly, be made up of flap, Sealing, flap thimble and pressure ring, it is characterized in that flap and flap thimble are structure as a whole, groove is had around circumference in the upper-end surface of flap, groove notch both sides of the edge place is provided with the inside and outside flange that can fold in notch, be provided with the pressure ring of Sealing and fixing seals in groove, pressure ring is fixed by the inside and outside flange being converted into 90 degree.
Described groove is two-stage ladder-type groove, and the width wherein arranging the step type groove of pressure ring is greater than the width of the secondary ladder-type groove arranging Sealing, forms limited step.
Feature of the present invention is: flap and flap thimble are integrated, and ensure that the coaxality of one-piece machine member; Adopt the inside and outside flange fixing seals of stamped recess and pressure ring, ensure that combining closely of sealing material and flap, the operation of flap can not have an impact to Sealing, and sealability is reliable and stable; And low-temperature shrink can not be produced, pressure ring and flap adopt same material, and low-temperature deformation coefficient is identical, and punching press can not produce loosening together.Two-stage ladder-type groove structure, ensures that Sealing is while combining closely with flap, can not be overly compressed and cause damaging; Structure is simple, and save material, good seal performance, ensure that reduction valve safe and reliable operation, avoid low temperature leak.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation that the utility model Sealing is in stationary state.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, reduction valve flap assembly is made up of flap 1, flap thimble 2, Sealing 3 and pressure ring 4.Flap and flap thimble are structure as a whole, groove 5 is had around circumference in the upper-end surface of flap, groove is two-stage ladder-type groove, be respectively used to arrange the Sealing that matches with it and pressure ring, the width wherein arranging the step type groove of pressure ring is greater than the width of the secondary ladder-type groove arranging Sealing, form limited step, make Sealing close-fitting with flap while, only bear the decrement of about 30%, ensure that Sealing is not overly compressed.Be provided with inside and outside flange 6,7 at groove notch both sides of the edge place, the pressure ring of Sealing and fixing seals be arranged in groove, adopt hydraulic stamping respectively by inside and outside flange to crimping in notch 90 degree, complete the fixing of pressure ring and Sealing, see Fig. 2.Sealing is annular silicon rubber plate, and pressure ring and flap adopt same material to make.
Claims (2)
1. a reduction valve flap assembly, be made up of flap, Sealing, flap thimble and pressure ring, it is characterized in that flap and flap thimble are structure as a whole, groove is had around circumference in the upper-end surface of flap, groove notch both sides of the edge place is provided with the inside and outside flange that can fold in notch, be provided with the pressure ring of Sealing and fixing seals in groove, pressure ring is fixed by the inside and outside flange being converted into 90 degree.
2. reduction valve flap assembly according to claim 1, is characterized in that described groove is two-stage ladder-type groove, and the width wherein arranging the step type groove of pressure ring is greater than the width of the secondary ladder-type groove arranging Sealing, forms limited step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588390.4U CN204140991U (en) | 2014-10-13 | 2014-10-13 | Reduction valve flap assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588390.4U CN204140991U (en) | 2014-10-13 | 2014-10-13 | Reduction valve flap assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140991U true CN204140991U (en) | 2015-02-04 |
Family
ID=52417675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420588390.4U Expired - Fee Related CN204140991U (en) | 2014-10-13 | 2014-10-13 | Reduction valve flap assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140991U (en) |
-
2014
- 2014-10-13 CN CN201420588390.4U patent/CN204140991U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20151013 |
|
| EXPY | Termination of patent right or utility model |