CN204677879U - A kind of one-way valve valve gap and valve rod flexible sealing structure - Google Patents
A kind of one-way valve valve gap and valve rod flexible sealing structure Download PDFInfo
- Publication number
- CN204677879U CN204677879U CN201520343541.4U CN201520343541U CN204677879U CN 204677879 U CN204677879 U CN 204677879U CN 201520343541 U CN201520343541 U CN 201520343541U CN 204677879 U CN204677879 U CN 204677879U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve gap
- valve rod
- gap
- pressing plate
- 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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- Details Of Valves (AREA)
- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of one-way valve valve gap and valve rod flexible sealing structure, comprise valve gap, valve rod is slidably fitted with in valve gap, annular space is provided with between the upper semisection of valve gap and valve rod, in annular space, liner, lower spring cylinder, graphite packing, disrance sleeve, tetrafluoro filler, upper spring cylinder, Gland are installed from bottom to top successively, the top of Gland is provided with the pressing plate be sleeved on valve rod, pressing plate and valve gap upper-end surface are fixed by Stud connection part, and the upper end outer wall of valve gap is also combined with nut lock gripping members.The utility model novel in structural design, is isolated upper and lower stuffing box packing by disrance sleeve, coordinates the elastic performance of spring cylinder when pressing plate presses down simultaneously, ensures the tight property of stuffing box packing, improves sealability, extends the working life of valve.
Description
technical field:
The utility model relates to one-way valve, particularly relates to a kind of one-way valve valve gap and valve rod flexible sealing structure.
background technique:
Sleeve one-way valve in the market the sealing of visual cognitive ability between spool and valve rod, can ensure its sealability mostly, but have ignored the sealing between valve rod and valve gap, can cause one-way valve shortening in working life equally.
model utility content:
In order to make up prior art problem, the purpose of this utility model is to provide a kind of one-way valve valve gap and valve rod flexible sealing structure, effectively can ensure the flexible sealing performance between valve rod and valve gap, increase the service life.
The technical solution of the utility model is as follows:
One-way valve valve gap and valve rod flexible sealing structure, comprise valve gap, valve rod is slidably fitted with in valve gap, annular space is provided with between the upper semisection of valve gap and valve rod, it is characterized in that: in described annular space, liner, lower spring cylinder, graphite packing, disrance sleeve, tetrafluoro filler, upper spring cylinder, Gland are installed from bottom to top successively, the top of Gland is provided with the pressing plate be sleeved on valve rod, pressing plate and described valve gap upper-end surface are fixed by Stud connection part, and the upper end outer wall of valve gap is also combined with nut lock gripping members.
Described one-way valve valve gap and valve rod flexible sealing structure, is characterized in that: described Gland lower end is stretched in annular space, and upper end stretches out valve gap upper end and described pressing plate is withstood at top.
The utility model has the advantages that:
The utility model novel in structural design, is isolated upper and lower stuffing box packing by disrance sleeve, coordinates the elastic performance of spring cylinder when pressing plate presses down simultaneously, ensures the tight property of stuffing box packing, improves sealability, extends the working life of valve.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
embodiment:
See accompanying drawing:
One-way valve valve gap and valve rod flexible sealing structure, comprise valve gap 1, valve rod 2 is slidably fitted with in valve gap 1, annular space is provided with between the upper semisection of valve gap 2 and valve rod, in annular space, liner 3, lower spring cylinder 4, graphite packing 5, disrance sleeve 6, tetrafluoro filler 7, upper spring cylinder 8, Gland 9 are installed from bottom to top successively, the top of Gland 9 is provided with the pressing plate 10 be sleeved on valve rod, pressing plate 10 is fixed by Stud connection part 11 with valve gap 1 upper-end surface, and the upper end outer wall of valve gap 1 is also combined with nut lock gripping members 12.
Gland 9 lower end is stretched in annular space, and upper end stretches out valve gap 1 upper end and pressing plate 10 is withstood at top.
Upper and lower stuffing box packing is isolated by disrance sleeve 6 by the utility model, coordinates the elastic performance of spring cylinder when pressing plate 10 presses down simultaneously, ensures the tight property of stuffing box packing, improves sealability, extends the working life of valve.
Claims (2)
1. an one-way valve valve gap and valve rod flexible sealing structure, comprise valve gap, valve rod is slidably fitted with in valve gap, annular space is provided with between the upper semisection of valve gap and valve rod, it is characterized in that: in described annular space, liner, lower spring cylinder, graphite packing, disrance sleeve, tetrafluoro filler, upper spring cylinder, Gland are installed from bottom to top successively, the top of Gland is provided with the pressing plate be sleeved on valve rod, pressing plate and described valve gap upper-end surface are fixed by Stud connection part, and the upper end outer wall of valve gap is also combined with nut lock gripping members.
2. one-way valve valve gap according to claim 1 and valve rod flexible sealing structure, is characterized in that: described Gland lower end is stretched in annular space, and upper end stretches out valve gap upper end and described pressing plate is withstood at top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343541.4U CN204677879U (en) | 2015-05-25 | 2015-05-25 | A kind of one-way valve valve gap and valve rod flexible sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343541.4U CN204677879U (en) | 2015-05-25 | 2015-05-25 | A kind of one-way valve valve gap and valve rod flexible sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677879U true CN204677879U (en) | 2015-09-30 |
Family
ID=54177571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520343541.4U Expired - Fee Related CN204677879U (en) | 2015-05-25 | 2015-05-25 | A kind of one-way valve valve gap and valve rod flexible sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913107A (en) * | 2015-05-25 | 2015-09-16 | 蚌埠南自仪表有限公司 | Flexible sealing structure for valve deck and valve rod of one-way valve |
-
2015
- 2015-05-25 CN CN201520343541.4U patent/CN204677879U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913107A (en) * | 2015-05-25 | 2015-09-16 | 蚌埠南自仪表有限公司 | Flexible sealing structure for valve deck and valve rod of one-way 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 |
Granted publication date: 20150930 Termination date: 20160525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |