CN203628010U - Pressure self-sealing packing structure - Google Patents
Pressure self-sealing packing structure Download PDFInfo
- Publication number
- CN203628010U CN203628010U CN201320741395.1U CN201320741395U CN203628010U CN 203628010 U CN203628010 U CN 203628010U CN 201320741395 U CN201320741395 U CN 201320741395U CN 203628010 U CN203628010 U CN 203628010U
- Authority
- CN
- China
- Prior art keywords
- packing
- sealing
- valve
- gland
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 238000012856 packing Methods 0.000 title claims abstract description 34
- 210000004907 gland Anatomy 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Images
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model provides a pressure self-sealing packing structure which comprises a valve cover, a packing gland, a valve rod, a packing backing ring, self-sealing packing, a packing sealing piece and an O-shaped ring. The packing gland is coaxially installed at the upper end of the valve cover, the valve rod is coaxially installed between the valve cover and the packing gland in a penetrating mode, the lower portion of the packing gland makes contact with the valve rod, a packing chamber is formed in the valve cover, and the packing backing ring, the pressure self-sealing packing and the packing sealing piece are sequentially installed in the packing chamber from bottom to top. The pressure self-sealing packing structure is reliable in structural performance, long in service life, little in valve opening moment and capable of being widely applied to various special occasions.
Description
Technical field
The utility model belongs to valve class, especially a kind of pressure self-sealing filling-material structure.
Background technique
The sealing of valve is the important performance of valve, especially high pressure, the higher occasion of the severe spatial requirement of environment, and the Reliability of Packing Seal of valve is not only related to the sealability of valve, even has influence on the use safety of valve.At present, the valve stem seal of valve adopts filling-material structure, and filler compresses and guarantees sealing, but the impacting force increase of filler can cause the moment of torsion of valve rod to increase, the flexibility that impact opens and closes.
Model utility content
The utility model has made up the deficiencies in the prior art, and volume is little, lightweight, installs simply, makes valve opening moment lighter.
A kind of pressure self-sealing filling-material structure, comprise valve gap, Gland, valve rod, filler gasket ring, self-sealing packing, packing seal sheet and O type circle, valve gap upper end is coaxially installed with Gland, valve gap and Gland middle part are coaxially coated with valve rod, Gland below is shaped with filler chamber in contacting valve gap with valve rod, it is characterized in that: in filler chamber, order is provided with filler gasket ring, pressure self-sealing filler and packing seal sheet from bottom to top.
And the inside and outside wall of described filler gasket ring is all radially provided with O type circle.
And, between the filler chamber of described packing seal sheet top and Gland, be coaxially installed with pendant collet.
The purpose of this utility model is achieved in that
1, reach sealing effect when pressure self-sealing filling-material structure depended on pressure promotes filler gasket ring compaction pressure self-sealing packing, in the time that O type circle weares and teares, pressure-acting reaches sealing effect in pressure self-sealing filler.
2, pressure self-sealing filler is movable, not compacted, makes the unlatching moment of valve less.
3, the utility model volume is little, lightweight, installs simply, adopts pressure self-sealing, and its pressure self-sealing filling-material structure is little to space, sealability is high, and reliable operation can be widely used in throttle valve, gate valve, stop valve, butterfly valve, ball valve, modulating valve etc.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model.
Reference character: 1, filler gasket ring; 2, O type circle; 3, pressure self-sealing filler; 4, packing seal sheet; 5, pendant collet; 6, Gland; 7, valve gap; 8, valve rod.
Embodiment
Below in conjunction with accompanying drawing, example of the present utility model is further described; It should be noted that: the present embodiment is descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of pressure self-sealing filling-material structure, comprise valve gap 7, Gland 6, valve rod 8, filler gasket ring 1, self-sealing packing 3, packing seal sheet 4 and O type circle 2, valve gap upper end is coaxially installed with Gland, valve gap and Gland middle part are coaxially coated with valve rod, Gland below is shaped with filler chamber in contacting valve gap with valve rod
Innovative point of the present utility model is:
In filler chamber, order is provided with filler gasket ring, pressure self-sealing filler and packing seal sheet from bottom to top, and the inside and outside wall of filler gasket ring is all radially provided with O type circle.Pressure self-sealing filler is movable, not compacted, makes the unlatching moment of valve less.This metal and nonmetal compound seal filling-material structure sealability are reliable, and long service life, is widely used in each distinct species occasion.
In order to strengthen the support to filler, between the filler chamber above packing seal sheet and Gland, be coaxially installed with pendant collet 5.
Working principle of the present utility model is:
Act on packing seal sheet when pressure self-sealing filling-material structure depended on pressure promotes filler gasket ring compaction pressure self-sealing packing, packing seal sheet is located by pendant collet.Reach pressure larger, pressure self-sealing filler is pressed more in fact, and sealing effect is better.
Compress filler, pendant collet is put into the pendant collet groove of valve gap, and Gland is fixed pendant collet position, reaches the work that limits packing seal sheet position in order to meet pressure when higher, and pressure self-sealing filler is pressed more firmly.
Claims (3)
1. a pressure self-sealing filling-material structure, comprise valve gap, Gland, valve rod, filler gasket ring, self-sealing packing, packing seal sheet and O type circle, valve gap upper end is coaxially installed with Gland, valve gap and Gland middle part are coaxially coated with valve rod, Gland below is shaped with filler chamber in contacting valve gap with valve rod, it is characterized in that: in filler chamber, order is provided with filler gasket ring, pressure self-sealing filler and packing seal sheet from bottom to top.
2. pressure self-sealing filling-material structure according to claim 1, is characterized in that: the inside and outside wall of described filler gasket ring is all radially provided with O type circle.
3. pressure self-sealing filling-material structure according to claim 1, is characterized in that: between the filler chamber of described packing seal sheet top and Gland, be coaxially installed with pendant collet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320741395.1U CN203628010U (en) | 2013-11-20 | 2013-11-20 | Pressure self-sealing packing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320741395.1U CN203628010U (en) | 2013-11-20 | 2013-11-20 | Pressure self-sealing packing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203628010U true CN203628010U (en) | 2014-06-04 |
Family
ID=50814488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320741395.1U Expired - Lifetime CN203628010U (en) | 2013-11-20 | 2013-11-20 | Pressure self-sealing packing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203628010U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240548A (en) * | 2015-11-03 | 2016-01-13 | 天津百利展发集团有限公司 | Throttling and shutoff multi-function valve supporting on-line maintenance |
| CN105587928A (en) * | 2016-03-14 | 2016-05-18 | 西诺威阀门控制（苏州）有限公司 | Sealing structure between valve cover and valve rod |
| CN111237484A (en) * | 2020-03-19 | 2020-06-05 | 吴忠仪表有限责任公司 | An ultra-low temperature low leakage high pressure balance regulating valve |
-
2013
- 2013-11-20 CN CN201320741395.1U patent/CN203628010U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240548A (en) * | 2015-11-03 | 2016-01-13 | 天津百利展发集团有限公司 | Throttling and shutoff multi-function valve supporting on-line maintenance |
| CN105587928A (en) * | 2016-03-14 | 2016-05-18 | 西诺威阀门控制（苏州）有限公司 | Sealing structure between valve cover and valve rod |
| CN111237484A (en) * | 2020-03-19 | 2020-06-05 | 吴忠仪表有限责任公司 | An ultra-low temperature low leakage high pressure balance regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203628010U (en) | Pressure self-sealing packing structure | |
| CN202746629U (en) | Double soft sealing flat-plate gate valve | |
| CN204025716U (en) | Sealed type stop valve | |
| CN202418586U (en) | Lip-shaped sealing ring | |
| CN205978545U (en) | Mud dedicated valve | |
| CN202751334U (en) | Dust collector cup with side sealed | |
| CN201934780U (en) | Modified filler pressing sleeve device | |
| CN205036466U (en) | Construction improvement type piston ring | |
| CN104214362A (en) | Plug valve | |
| CN102954236A (en) | Stop valve based on high-tightness valve clack | |
| CN103470761A (en) | Sealing gasket | |
| CN204226637U (en) | A kind of efficient sealed valve mechanism cover pad | |
| CN204114223U (en) | A kind of stopcock | |
| CN202708128U (en) | Stop valve | |
| CN202370790U (en) | Piston assembly of air pump | |
| CN206274078U (en) | A kind of idle call cutoff valve with high sealing performance | |
| CN203202267U (en) | Wear-resisting ball valve | |
| CN204961980U (en) | A vacuum valve and seal ring subassembly for packagine machine | |
| CN204459244U (en) | A kind of stopcock | |
| CN204127530U (en) | A kind of flange sealer | |
| CN205173553U (en) | Prevent grey ball valve | |
| CN203797016U (en) | High temperature gate valve | |
| CN204175985U (en) | Be provided with the butterfly valve of hydraulic sealing structure | |
| CN203797011U (en) | Improved sucker rod brake valve | |
| CN204226706U (en) | A kind of Novel high-temperature high-pressure ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |