CN104913108A - Elastic sealing structure for valve deck and valve rod of one-way valve - Google Patents
Elastic sealing structure for valve deck and valve rod of one-way valve Download PDFInfo
- Publication number
- CN104913108A CN104913108A CN201510271821.3A CN201510271821A CN104913108A CN 104913108 A CN104913108 A CN 104913108A CN 201510271821 A CN201510271821 A CN 201510271821A CN 104913108 A CN104913108 A CN 104913108A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- sealing structure
- elastic sealing
- padding
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Abstract
The invention discloses an elastic sealing structure for a valve deck and a valve rod of a one-way valve. The elastic sealing structure for the valve deck and the valve rod of the one-way valve comprises the valve deck, and the valve rod is installed in the valve deck in a sliding mode. An annular gap is formed between the upper half section of the valve deck and the valve rod. A padding check ring, a spring, a lower gasket, tetrafluoromethane padding, an upper gasket and a padding gland are sequentially installed in the annular gap from bottom to top. An annular expansion barrel is arranged in the middle of the tetrafluoromethane padding, a pressing plate with which the valve rod is sleeved is arranged above the padding gland, and the pressing plate is fixed to the upper end face of the valve deck through a stud connecting piece. The elastic sealing structure is novel and reasonable in structural design; due to the fact that the spring is additionally arranged in the annular gap between the valve rod and the valve deck and the expansion barrel is additionally arranged in the padding, the tetrafluoromethane padding is compact in the axial direction and the radial direction, and the sealing performance of the valve deck and the valve rod can be effectively ensured; the using performance of the valve is improved, and the service life of the valve is prolonged.
Description
technical field:
The present invention relates to one-way valve, particularly relate 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.
summary of the invention:
In order to make up prior art problem, the object of this invention 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.
Technological scheme of the present invention 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.
Advantage of the present invention is:
Novel in structural design of the present invention, 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 invention.
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 |
|---|---|---|---|
| CN201510271821.3A CN104913108A (en) | 2015-05-25 | 2015-05-25 | Elastic sealing structure for valve deck and valve rod of one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271821.3A CN104913108A (en) | 2015-05-25 | 2015-05-25 | Elastic sealing structure for valve deck and valve rod of one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104913108A true CN104913108A (en) | 2015-09-16 |
Family
ID=54082418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510271821.3A Pending CN104913108A (en) | 2015-05-25 | 2015-05-25 | Elastic sealing structure for valve deck and valve rod of one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104913108A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2212897A5 (en) * | 1972-12-29 | 1974-07-26 | Tour Agenturer Ab | |
| CN102322237A (en) * | 2011-06-14 | 2012-01-18 | 中国石油天然气股份有限公司 | Self-inflatable packer |
| CN102758964A (en) * | 2012-07-11 | 2012-10-31 | 南通高中压阀门有限公司 | Low-loss self-compensating system for filler loss |
| CN202834360U (en) * | 2012-10-25 | 2013-03-27 | 浙江联大阀门有限公司 | Cage type regulating valve |
| CN104329462A (en) * | 2014-10-30 | 2015-02-04 | 重庆山能仪表有限公司 | Low-dispassion packing seal structure |
| CN204677880U (en) * | 2015-05-25 | 2015-09-30 | 蚌埠南自仪表有限公司 | A kind of one-way valve valve gap and valve rod elastic sealing structure |
-
2015
- 2015-05-25 CN CN201510271821.3A patent/CN104913108A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2212897A5 (en) * | 1972-12-29 | 1974-07-26 | Tour Agenturer Ab | |
| CN102322237A (en) * | 2011-06-14 | 2012-01-18 | 中国石油天然气股份有限公司 | Self-inflatable packer |
| CN102758964A (en) * | 2012-07-11 | 2012-10-31 | 南通高中压阀门有限公司 | Low-loss self-compensating system for filler loss |
| CN202834360U (en) * | 2012-10-25 | 2013-03-27 | 浙江联大阀门有限公司 | Cage type regulating valve |
| CN104329462A (en) * | 2014-10-30 | 2015-02-04 | 重庆山能仪表有限公司 | Low-dispassion packing seal structure |
| CN204677880U (en) * | 2015-05-25 | 2015-09-30 | 蚌埠南自仪表有限公司 | A kind of one-way valve valve gap and valve rod elastic sealing structure |
Non-Patent Citations (1)
| Title |
|---|
| 翁国文、杨慧: "《橡胶技术问答 原料•工艺•配方篇》", 31 July 2010, 化学工业出版社 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150916 |