CN204677880U - A kind of one-way valve valve gap and valve rod elastic sealing structure - Google Patents
A kind of one-way valve valve gap and valve rod elastic sealing structure Download PDFInfo
- Publication number
- CN204677880U CN204677880U CN201520343584.2U CN201520343584U CN204677880U CN 204677880 U CN204677880 U CN 204677880U CN 201520343584 U CN201520343584 U CN 201520343584U CN 204677880 U CN204677880 U CN 204677880U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve gap
- valve rod
- gap
- filler
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 20
- 210000004907 gland Anatomy 0.000 claims abstract description 8
- 230000008961 swelling Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 2
- 230000003930 cognitive ability Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model discloses a kind of one-way valve valve gap and valve rod elastic 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, filler baffle ring, spring, lower liner, tetrafluoro filler, upper liner, Gland are installed from bottom to top successively, the expansion cylinder of a ring shape is also provided with in the middle part of tetrafluoro filler, the top of Gland is provided with the pressing plate be sleeved on valve rod, and pressing plate and valve gap upper-end surface are fixed by Stud connection part.The utility model novel in structural design, expansion cylinder is set up by setting up in spring and filler in the annular space between valve rod and valve gap, make tetrafluoro filler axially and radial direction tight, effectively can ensure the sealability between valve gap and valve rod, the usability of raising valve and working life.
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 elastic sealing structure.
background technique:
Sleeve one-way valve mainly comprises the structures such as valve body, valve seat, spool, valve rod, valve gap, sleeve and filler assembly.Sleeve one-way valve in the market mostly can the sealing of visual cognitive ability between spool and valve rod, ensure in its sealability, but the sealing that have ignored between valve rod and valve gap, sealing between valve rod and valve gap adopts packing seal mostly, in packing seal Long-Time Service process, gap between filler and valve rod is increasing, and sealability can be deteriorated relatively, causes one-way valve shortening in working life.
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 elastic sealing structure, effectively can ensure the sealability of one-way valve, the work of stability and high efficiency in Long-Time Service process.
The technical solution of the utility model is as follows:
One-way valve valve gap and valve rod elastic 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, filler baffle ring, spring, lower liner, tetrafluoro filler, upper liner, Gland are installed from bottom to top successively, the expansion cylinder of a ring shape is also provided with in the middle part of described tetrafluoro filler, the top of Gland is provided with the pressing plate be sleeved on valve rod, and pressing plate and described valve gap upper-end surface are fixed by Stud connection part.
Described one-way valve valve gap and valve rod elastic sealing structure, is characterized in that: the upper end outer wall of described valve gap is also combined with nut lock gripping members, and nut lock gripping members is positioned at the below of pressing plate.
Described one-way valve valve gap and valve rod elastic sealing structure, is characterized in that: described expansion cylinder adopts water swelling rubber to make.
The utility model has the advantages that:
The utility model novel in structural design, expansion cylinder is set up by setting up in spring and filler in the annular space between valve rod and valve gap, make tetrafluoro filler axially and radial direction tight, effectively can ensure the sealability between valve gap and valve rod, the usability of raising valve and working life.
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 elastic 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 2, in annular space, filler baffle ring 3, spring 4, lower liner 5, tetrafluoro filler 6, upper liner 7, Gland 8 are installed from bottom to top successively, the expansion cylinder 12 of a ring shape is also provided with in the middle part of tetrafluoro filler 6, the top of Gland 8 is provided with the pressing plate 9 be sleeved on valve rod, and pressing plate 9 is fixed by Stud connection part 10 with valve gap 1 upper-end surface.
The upper end outer wall of valve gap 1 is also combined with nut lock gripping members 11, and nut lock gripping members 11 is positioned at the below of pressing plate 9.
Expansion cylinder 12 adopts water swelling rubber to make, and expansion cylinder 12 is coated in tetrafluoro filler completely, can ensure the radial expansion of expansion cylinder 12 in annular space, ensures the reliability sealed between tetrafluoro filler 6 and valve rod 2, excellent in Long-Time Service sealability.
Claims (3)
1. an one-way valve valve gap and valve rod elastic 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, filler baffle ring, spring, lower liner, tetrafluoro filler, upper liner, Gland are installed from bottom to top successively, the expansion cylinder of a ring shape is also provided with in the middle part of described tetrafluoro filler, the top of Gland is provided with the pressing plate be sleeved on valve rod, and pressing plate and described valve gap upper-end surface are fixed by Stud connection part.
2. one-way valve valve gap according to claim 1 and valve rod elastic sealing structure, is characterized in that: the upper end outer wall of described valve gap is also combined with nut lock gripping members, and nut lock gripping members is positioned at the below of pressing plate.
3. one-way valve valve gap according to claim 1 and valve rod elastic sealing structure, is characterized in that: described expansion cylinder adopts water swelling rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343584.2U CN204677880U (en) | 2015-05-25 | 2015-05-25 | A kind of one-way valve valve gap and valve rod elastic sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520343584.2U CN204677880U (en) | 2015-05-25 | 2015-05-25 | A kind of one-way valve valve gap and valve rod elastic sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677880U true CN204677880U (en) | 2015-09-30 |
Family
ID=54177572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520343584.2U Expired - Fee Related CN204677880U (en) | 2015-05-25 | 2015-05-25 | A kind of one-way valve valve gap and valve rod elastic sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204677880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913108A (en) * | 2015-05-25 | 2015-09-16 | 蚌埠南自仪表有限公司 | Elastic sealing structure for valve deck and valve rod of one-way valve |
-
2015
- 2015-05-25 CN CN201520343584.2U patent/CN204677880U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913108A (en) * | 2015-05-25 | 2015-09-16 | 蚌埠南自仪表有限公司 | Elastic 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 |