CN201487240U - Full sealed zero leakage stop valve - Google Patents
Full sealed zero leakage stop valve Download PDFInfo
- Publication number
- CN201487240U CN201487240U CN2009201957518U CN200920195751U CN201487240U CN 201487240 U CN201487240 U CN 201487240U CN 2009201957518 U CN2009201957518 U CN 2009201957518U CN 200920195751 U CN200920195751 U CN 200920195751U CN 201487240 U CN201487240 U CN 201487240U
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- Prior art keywords
- valve
- flap
- valve rod
- flap hanger
- hanger
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- 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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Abstract
The utility model relates to a full sealed zero leakage stop valve, which comprises a valve body, an upper seal cap, a hand wheel, a valve rod and a valve disc, wherein a valve disc hanging frame is arranged inside a valve cavity of a stop valve, and the valve disc is fixed at the lower end of the valve disc hanging frame, and the lower end of the valve rod penetrates through the upper seal cap to be connected to the valve disc hanging frame in a linkage manner to form a valve disc hanging frame axial lifting mechanism to lead the valve disc to form open and closed engagement with a valve seat. A corrugated pipe shape elastic expansion piece is arranged between a valve opening of the valve body and the valve disc hanging frame, and two ends of the elastic expansion piece are respectively connected to the valve opening and the valve disc hanging frame in a sealing manner to separate the valve disc from the upper seal cap. The full sealed zero leakage stop valve modifies motive seal in the prior art to static seal and adopts the elastic expansion piece to separate the valve disc from the upper seal cap in order to achieve full sealed zero leakage, thereby greatly increasing sealing property and enlarging application field.
Description
Technical field
The utility model relates to a kind of stop valve, particularly full-seal zero-leakage stop valve.
Background technique
The model utility of valve attends by human life with application always closely, produces and work, also the history in thousands of years has been arranged so far.Because the continuous increase of demand, the kind of valve, specification output are constantly increased sharply, and according to incompletely statistics, China has more than 3,000 kind of about 30,000 plurality of specifications of valve at present.
Valve is the important device of transporting fluid, particularly in inflammable, explosive, the poisonous and hazardous danger medium of transporting, to the sealing of safe and reliable consideration to valve, intensity assurance property has proposed strict requirement.
Present stop valve valve gap is connected with bolt, nut with valve body and forms Seal cage, in order to splendid attire by the medium of transporting with provide the stopper flap to open and close activity space.Yet this Seal cage has two leak sources, and one is the joint of valve gap and valve body, for preventing to leak, have to be clipped in the place, slit with sealing gasket and go to block up, and another place is that valve rod is done rotation (formula is toward complex line) and moved and produced matching gap too at the stuffing box place.Also have to use the filler leak stopping.Here the valve of these conventional constructions is called the seam valve is arranged.Go to keep sealability for the method that ensures safety, can only lean on the maintain and replace filler in the using process.When the transporting medium temperature raises, the pressure increase makes that the working environment of stop valve is very harsh, in order to guarantee being perfectly safe of transporting hazmat, the most basic way is cancelled this two leak sources exactly.
The model utility content
The purpose of this utility model is to provide a kind of stop valve of seamless full-seal zero-leakage for overcoming the deficiencies in the prior art.
In order to achieve the above object, the technical solution that the utility model provides is: a kind of full-seal zero-leakage stop valve, comprise valve body, upper cover, handwheel, valve rod and flap, it is characterized in that: described stop valve also is provided with the flap hanger, described flap hanger Spielpassung is arranged in the valve pocket that forms between upper cover and the valve body, described flap is fixed on the lower end of flap hanger, described valve rod lower end is passed upper cover and flap hanger and is connected and constitutes that the axial elevator mechanism of flap hanger forms flap and valve seat to open and closure cooperates, be provided with corrugated tube shape elastic telescopic spare between the valve port of described valve body and the flap hanger, described elastic telescopic spare two ends are tightly connected with valve port and flap hanger respectively flap and upper cover are separated.
Compared with prior art, the beneficial effects of the utility model are: by having set up a flap hanger and being different from the Placement of prior art, rotation motion to linear, make the flap hanger drive flap and only do the vertical axial lifting, simultaneously between the valve port of valve body and flap hanger, be provided with corrugated tube shape elastic telescopic spare, elastic telescopic spare two ends are tightly connected with valve port and flap hanger respectively flap and upper cover are separated, motive sealing of the prior art is improved to static seal, elastic telescopic spare with can adopt being connected of valve port and flap hanger fixedly connected as the welding etc., can reach full-seal zero-leakage, greatly improve sealability, enlarged application.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Accompanying drawing 1 is the utility model specific embodiment 1 structure sectional view;
Accompanying drawing 2 is the utility model specific embodiment 2 structure sectional views;
Embodiment
Concrete enforcement 1: as shown in Figure 1, full-seal zero-leakage stop valve still comprises valve body 1, upper cover 2, handwheel 3, valve rod 4 and flap 5.Upper cover 2 is preferably tubbiness, and the valve port diameter on diameter and the valve body 1 matches up at the bucket end, make with valve body 1 between the valve pocket of formation enough spaces are arranged, being connected between upper cover 2 and the valve body 1 can be that flange connects, and also can be welding, adopts the latter in the utility model.The center on upper cover 2 tops is provided with valve rod hole, the position corresponding with valve rod hole is provided with nut 6 on the upper cover 2, and valve rod 4 tops are provided with the swivel nut 7 that matches with nut 6, and valve rod 4 is installed on the upper cover 2 by swivel nut 7, nut 6 cooperations, valve rod 4 lower ends enter in the valve pocket, and handwheel 3 is fixed on valve rod 4 upper ends.Also be provided with flap hanger 8 in the valve pocket, flap hanger 8 is whole cylindrical, top is provided with discoid joint 9, the diameter of discoid joint 9 is greater than the caliber of elastic telescopic spare 10 but less than upper cover 2 internal diameters flap hanger 8 Spielpassung is arranged in the valve pocket that forms between upper cover 2 and the valve body 1, the upper end of flap hanger 8 is provided with the axial blind hole with valve rod 4 lower end Spielpassung, it is relative with valve seat that flap 5 is fixed on the lower end of flap hanger 8, insert in the blind hole valve rod 4 lower ends, being equipped with identical cross section on the relevant position of valve rod 4 surfaces and blind pore wall is that semicircular annular groove 11 is formed the ring-type pipeline space, being provided with a plural number steel ball 12 in the looped pipeline space makes valve rod 4 and flap hanger 8 constitute circumferentially movable being connected of axial restraint, in conjunction with swivel nut 7 on the valve rod 4, nut 6 cooperations are threaded with upper cover 2 and constitute described flap hanger 8 axial elevator mechanisms, rotatablely moving of handwheel 3 become the straight line motion of flap hanger 8, make flap hanger 8 drive flap 5 and only do the vertical axial lifting, corrugated tube shape elastic telescopic spare 10 two ends are tightly connected with valve port and flap hanger 8 respectively flap 5 and upper cover 2 are separated, can take the mode of whole mutually weldering system to be connected between elastic telescopic spare 10 two ends and valve port and the flap hanger 8, eliminate original valve gap and valve body 1 joint gap.The extending amount of corrugated tube shape elastic telescopic spare 10 is greater than flap hanger 8 strokes, and selects for use solid corrosion-resistant material to make.
The working principle of full-seal zero-leakage stop valve: rotate handwheel 3, under swivel nut on the valve rod 47 and nut 6 interact, valve rod 4 is descending, promoting flap hanger 8 by steel ball moves down, rotating elastomer of while, downward compressive deformation, at this moment the closure member flap 5 that is located on the flap hanger 8 moves down, and contacts with sealing surface of seat and has finished closing function.Counterrotating handwheel 3, under swivel nut on the valve rod 47 and nut 6 interacted, valve rod 4 was up, by moving on the steel ball drive flap hanger 8, at this moment the closure member flap 5 that is located on the flap hanger 8 moves with the same, breaks away from sealing surface of seat and finishes, and finishes the valve opening function.
Concrete enforcement 2: the flap hanger 8 axial elevator mechanisms of full-seal zero-leakage stop valve can also be as shown in Figure 2: promptly be provided with valve stem casing 13 on upper cover 2, valve rod 4 lower ends are passed upper cover 2 and are entered in the valve pocket, valve rod 4 and valve stem casing 13 endoporus Spielpassung, being equipped with identical cross section on the relevant position of valve rod 4 surfaces and valve stem casing 13 inner hole walls is that semicircular annular groove 11 is formed the ring-type pipeline space, is provided with a plural number steel ball 12 in the looped pipeline space and makes valve rod 4 and valve stem casing 13 endoporus constitute circumferentially movable being connected of axial restraint; Valve rod 4 lower ends are provided with screw thread, flap hanger 8 upper ends are provided with the axial screw that matches with valve rod 4 lower ends, valve rod 4 is threaded with flap hanger 8, is provided with axially directed structure between flap hanger 8 and the valve cavity wall and equally also can reaches the straight-line purpose that rotatablely moving of handwheel 3 is become flap hanger 8.
The utility model is by being improved to static seal with motive sealing, make that between the valve port of valve body 1 and flap hanger 8 corrugated tube shape elastic telescopic spare 10 being set becomes possibility, stop valve can reach full-seal zero-leakage, greatly improved sealability, enlarge application, can carry poisonous, harmful, easy dangerous medium such as right, explosive and deep-etching gas.
Claims (4)
1. full-seal zero-leakage stop valve, comprise valve body, upper cover, handwheel, valve rod and stopper flap, it is characterized in that: described stop valve also is provided with the flap hanger, described flap hanger Spielpassung is arranged in the valve pocket that forms between upper cover and the valve body, described flap is fixed on the lower end of flap hanger, described valve rod lower end is passed upper cover and flap hanger and is connected and constitutes that the axial elevator mechanism of flap hanger forms flap and valve seat to open and closure cooperates, be provided with corrugated tube shape elastic telescopic spare between the valve port of described valve body and the flap hanger, described elastic telescopic spare two ends are tightly connected with valve port and flap hanger respectively flap and upper cover are separated.
2. full-seal zero-leakage stop valve according to claim 1, it is characterized in that: the upper end of described flap hanger is provided with the axial blind hole with valve rod lower end Spielpassung, insert in the blind hole valve rod lower end, being equipped with identical cross section on the relevant position of described stem surface and blind pore wall is that semicircular annular groove is formed the ring-type pipeline space, is provided with a plural number steel ball in the described looped pipeline space and makes valve rod and flap hanger constitute circumferentially movable being connected of axial restraint; Described valve rod top is provided with swivel nut, and upper cover is provided with nut, and described valve rod is threaded with upper cover by swivel nut, nut cooperation and constitutes the axial elevator mechanism of described flap hanger.
3. full-seal zero-leakage stop valve according to claim 1, it is characterized in that: described upper cover is provided with valve stem casing, described valve rod lower end is passed and is entered in the valve pocket, valve rod and valve stem casing endoporus Spielpassung, being equipped with identical cross section on the relevant position of described stem surface and valve stem casing inner hole wall is that semicircular annular groove is formed the ring-type pipeline space, is provided with a plural number steel ball in the described looped pipeline space and makes valve rod and valve stem casing endoporus constitute circumferentially movable being connected of axial restraint; Described valve rod lower end is provided with screw thread, described flap hanger upper end is provided with the axial screw that matches with the valve rod lower end, described valve rod is threaded with the flap hanger, is provided with axially directed structure between described flap hanger and the valve cavity wall and constitutes the axial elevator mechanism of described flap hanger.
4. according to claim 1 or 2 or 3 described full-seal zero-leakage stop valves, it is characterized in that: described flap hanger integral body is cylindrical, and top is provided with discoid joint, fixedlys connected with discoid joint with valve port respectively in described elastic telescopic spare two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201957518U CN201487240U (en) | 2009-09-10 | 2009-09-10 | Full sealed zero leakage stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201957518U CN201487240U (en) | 2009-09-10 | 2009-09-10 | Full sealed zero leakage stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487240U true CN201487240U (en) | 2010-05-26 |
Family
ID=42426119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201957518U Expired - Fee Related CN201487240U (en) | 2009-09-10 | 2009-09-10 | Full sealed zero leakage stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487240U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062419A (en) * | 2012-08-27 | 2013-04-24 | 常州埃姆基冷冻设备有限公司 | Steel forged refrigeration valve |
| CN108087572A (en) * | 2017-11-28 | 2018-05-29 | 安徽荣达阀门有限公司 | A kind of soft sealing valve lock |
-
2009
- 2009-09-10 CN CN2009201957518U patent/CN201487240U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062419A (en) * | 2012-08-27 | 2013-04-24 | 常州埃姆基冷冻设备有限公司 | Steel forged refrigeration valve |
| CN108087572A (en) * | 2017-11-28 | 2018-05-29 | 安徽荣达阀门有限公司 | A kind of soft sealing valve lock |
| CN108087572B (en) * | 2017-11-28 | 2019-06-07 | 安徽荣达阀门有限公司 | A kind of soft sealing valve lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenggui Valve Co., Ltd. Assignor: Fang Jiansheng Contract record no.: 2011330000606 Denomination of utility model: Full-seal zero-leakage stop valve Granted publication date: 20100526 License type: Exclusive License Record date: 20110526 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20140910 |
|
| EXPY | Termination of patent right or utility model |