CN203384474U - Self-fastening-type valve structure - Google Patents
Self-fastening-type valve structure Download PDFInfo
- Publication number
- CN203384474U CN203384474U CN201320470592.4U CN201320470592U CN203384474U CN 203384474 U CN203384474 U CN 203384474U CN 201320470592 U CN201320470592 U CN 201320470592U CN 203384474 U CN203384474 U CN 203384474U
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- valve
- valve gap
- ring
- self
- cover
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- Expired - Fee Related
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Abstract
The utility model discloses a self-fastening-type valve structure which comprises a valve body, a valve rod and a valve cover. The valve rod is located inside the valve body. The valve cover is installed between the valve body and the valve rod. Padding is contained between the valve cover and the valve rod. The self-fastening-type valve structure is characterized in that a padding gland is installed on the padding, the gland is connected with the valve cover, a sealing ring, a compression ring, a four-element ring and a cover plate are arranged inside the valve body, the sealing ring, the compression ring, the four-element ring and the cover plate are sequentially installed between the valve body and the valve cover from bottom to top, an adjusting screw is arranged on the cover plate, and the tip of the adjusting screw penetrates through the valve cover. According to the self-fastening-type valve structure, the valve cover is of a piston structure and can be freely telescopic, automatic compensation can be achieved under the high-temperature, high-pressure and pressure and temperature variation states, the sealing performance is excellent, a mounting plate structure does not exist, the structure is greatly simplified, assembly and disassembly are quite convenient, and due to the novel sealing-ring structure, the self-fastening-type valve structure has the characteristics of metal durable steel, has the advantage that nonmetal is easy to seal and soft, and can be repeatedly used and good in sealing.
Description
Technical field
The utility model relates to a kind of valve, particularly the self tightening valve arrangement.
Background technique
Be directed at present High Temperature High Pressure Selftightening type gate valve and stop valve, typical structure is following two kinds:
The first structure description: press self tightening in valve gap adopts, by the interior hexagonal Cock screw that turns clockwise, withstand cover plate, lift-off seal ring, pressure ring, four cyclizations.Mount board is connected by splitting annulus with piston, adopts the rotation gland stud, clamps and splits annulus, tension valve gap and link.In valve body, pressure medium is higher, and sealability is better.
The second structure description: press self tightening in valve gap adopts, by the turnbuckle that turns clockwise, promote valve gap, seal ring, pressure ring, four cyclizations.Mount board adopts and is threaded with valve gap, by the swing bolt that turns clockwise, compresses filler tension valve gap and link.In valve body, pressure medium is higher, and sealability is better.
There is following defect in above these two kinds of structures: part is many, complex structure, and Heavy Weight not only, and be difficult to remove and install.Seal ring adopts wedge-type to connect, and forms wedging power under High Temperature High Pressure, the potential risk such as easily cause that seal ring is pulled during dismounting.
The model utility content
The purpose of this utility model is the self tightening valve arrangement that a kind of simple in structure, sealing is provided in order to solve above-mentioned the deficiencies in the prior art.
To achieve these goals, the self tightening valve arrangement that the utility model is designed, comprise valve body, valve rod and valve gap, valve rod is positioned at valve body, valve gap is arranged between valve body and valve rod, between valve gap and valve rod, filler is housed, it is characterized in that: on described filler, Gland is installed, described gland is connected with valve gap, be provided with seal ring in described valve body, pressure ring, four cyclizations and cover plate, seal ring, pressure ring, four cyclizations and cover plate are arranged between valve body and valve gap successively from the bottom up, described cover plate is provided with adjusting screw, the tip of adjusting screw is through on valve gap.
Preferably, described seal ring be close on valve gap with the step place, the step place is the fillet shape.
Preferably, the limit end at described seal ring and step place is provided with metal bag sheet.
Preferably, the valve gap that described valve gap is piston structure.
Preferably, described gland with the Placement of valve gap for being threaded.
The self tightening valve arrangement that the utility model obtains, valve gap is piston structure, can free reduction, can auto-compensation under High Temperature High Pressure and pressure and temp state of changing, sealability is superior, without the device plate structure, greatly simplifies the structure, and installs, and dismantles very convenient.The novel seal ring structure, have the characteristics of metal durable steel, again tool the gentle advantage of nonmetal easy sealing, reusable, seal good.
The accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the partial enlarged drawing in Fig. 1;
Fig. 3 is gland and head cover engaging structure schematic diagram.
In figure: valve body 1, valve gap 2, gland 3, seal ring 10, pressure ring 11, four cyclizations 12, cover plate 13, filler 14, screw rod 31, adjusting screw 32, metal bag sheet 101, fillet shape 102.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment:
As Fig. 1, Fig. 2, shown in Fig. 3, the self tightening valve arrangement that the present embodiment provides, comprise valve body 1, valve rod and valve gap 2, valve rod is positioned at valve body, valve gap 2 is arranged between valve body and valve rod, filler 14 is housed between valve gap 2 and valve rod, on described filler 14, Gland 3 is installed, described gland 3 is connected by screw rod 31 with valve gap 2, be provided with seal ring 10 in described valve body 1, pressure ring 11, four cyclizations 12 and cover plate 13, seal ring 10, pressure ring 11, four cyclizations 12 and cover plate 13 are arranged between valve body 1 and valve gap 2 successively from the bottom up, described cover plate is provided with adjusting screw 32, the tip of adjusting screw 32 is through on valve gap 2.
Described seal ring 10 be close on valve gap with the step place, the step place is fillet shape 102.
Described seal ring 10 is provided with metal bag sheet 101 with the limit end at step place.
The valve gap that described valve gap is piston structure.
The self tightening valve arrangement more than obtained has following characteristics: the mount board of the installation by cancelling prior art, split the parts such as annulus, and gland stud directly is planted on valve gap, simplifies the structure, and dismounting is very convenient.Tensioned screw on rotation cover, drive on valve gap 2 and move, compression seal ring 10,11, four cyclizations 12 of locking pressure ring; Gland 3 bolts directly are planted on valve gap 2, and by the gland nut that turns clockwise, compressible filler, form valve stem seal; If middle cavity pressure is higher, the power acted on valve gap 2 is just larger, and seal ring 10 also will be pressed tightlyer simultaneously, and sealability is just better.Valve gap 2 is piston structure, can free reduction, can auto-compensation under High Temperature High Pressure and pressure and temp state of changing, and sealability is superior, can freely adjust concentricity, can auto-compensation under High Temperature High Pressure and pressure and temp state of changing, sealability is superior.
Its main structure is: gland stud directly is planted on valve gap, with common structure, compares, and has removed mount board and annex, greatly simplifies the structure, and installs, and dismantles very convenient.This seal ring adopts plane structure, and seal ring 10 adopts and strengthens Expanded graphite, at easy washed out position, adds metal bag sheet, under the pulling force of the active force of medium and tensioned screw, high level expansion has more increased oblique thrust under large fillet, can realize reliable sealing.Moreover, adopt plane structure maintenance, assembling all to be better than the inclined-plane sealing.
Claims (5)
1. a self tightening valve arrangement, comprise valve body, valve rod and valve gap, valve rod is positioned at valve body, valve gap is arranged between valve body and valve rod, between valve gap and valve rod, filler is housed, it is characterized in that: on described filler, Gland is installed, described gland is connected with valve gap, be provided with seal ring, pressure ring, four cyclizations and cover plate in described valve body, seal ring, pressure ring, four cyclizations and cover plate are arranged between valve body and valve gap successively from the bottom up, described cover plate is provided with adjusting screw, and the tip of adjusting screw is fixed on valve gap.
2. self tightening valve arrangement according to claim 1 is characterized in that: described seal ring be close on valve gap with the step place, the step place is the fillet shape.
3. self tightening valve arrangement according to claim 1 and 2, it is characterized in that: the limit end at described seal ring and step place is provided with metal bag sheet.
4. self tightening valve arrangement according to claim 1 and 2, is characterized in that: the valve gap that described valve gap is piston structure.
5. self tightening valve arrangement according to claim 1 and 2 is characterized in that: the Placement of described gland and valve gap is for being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470592.4U CN203384474U (en) | 2013-07-24 | 2013-07-24 | Self-fastening-type valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470592.4U CN203384474U (en) | 2013-07-24 | 2013-07-24 | Self-fastening-type valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203384474U true CN203384474U (en) | 2014-01-08 |
Family
ID=49872965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320470592.4U Expired - Fee Related CN203384474U (en) | 2013-07-24 | 2013-07-24 | Self-fastening-type valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203384474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704665A (en) * | 2015-07-23 | 2017-05-24 | 德维阀门铸造（苏州）有限公司 | High-temperature high-pressure valve |
-
2013
- 2013-07-24 CN CN201320470592.4U patent/CN203384474U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704665A (en) * | 2015-07-23 | 2017-05-24 | 德维阀门铸造（苏州）有限公司 | High-temperature high-pressure valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20210724 |