CN203272810U - Stop valve - Google Patents
Stop valve Download PDFInfo
- Publication number
- CN203272810U CN203272810U CN 201320157250 CN201320157250U CN203272810U CN 203272810 U CN203272810 U CN 203272810U CN 201320157250 CN201320157250 CN 201320157250 CN 201320157250 U CN201320157250 U CN 201320157250U CN 203272810 U CN203272810 U CN 203272810U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- filler
- ring
- stop valve
- 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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Abstract
The utility model discloses a stop valve which comprises an integrated valve body, a tapered overall valve seat, a valve rod tip, a valve rod, a reverse sealing check ring, a compression nut, a filler bottom cushion block, a packing filler, graphite fillers, a filler briquette, a gland, a double-O type ring, a leakage-proof ring, a needle roller thrust bearing, a valve rod guide sleeve, a bonnet, a flat key, a handle, a stud, a nut, an oil nozzle and a check ring for a shaft, wherein the valve rod is connected with a body spline; the graphite fillers are five sheets of combined graphite fillers; a pressure-bearing surface at the upper end of the filler briquette is tapered and can be adjusted automatically when stressed; and the check ring is arranged between the bonnet and the body. The stop valve can still keep a good sealing effect under the working conditions of low pressure, high pressure and even an instant high pressure and a high temperature; the assembly is simple, and the after-sales service is convenient; and the stop valve is applicable to low-pollution fluid.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of stop valve.
Background technique
Along with the development of industrial equipment to high parameter and maximization, working condition becomes increasingly complex, and valve has been proposed better requirement.At present, many working condition requirement valves possess outside the characteristics such as high temperature resistant, high pressure resistant, corrosion-resistant and resistance to erosion, and the resistance that is by convection into and pressure drop have had higher requirement.The working principle of stop valve is to rely on valve rod pressure that valve rod point sealing surface and sealing surface of seat are fitted tightly, and stops the medium circulation.The prior art stop valve is at low pressure and high pressure, and even instantaneous pressure and high temperature condition lower seal weak effect, load and unload complexity, and the time of reprocessing is long, and the filler of use yet major part is not suitable for low contaminated-fluid.
The model utility content
For the deficiencies in the prior art, the invention provides a kind ofly at low pressure and high pressure, even still can keep good sealing effect under the operating mode of instantaneous pressure and high temperature, loading and unloading are simple, reprocess conveniently, and are applicable to the stop valve of low contaminated-fluid.
In order to achieve the above object, the invention provides following technological scheme:
A kind of stop valve is characterized in that comprising integral valve body, taper Integral valve seat, valve rod point, valve rod, reverse Sealing shield ring, gland nut, filler heelpiece piece, packing filling, graphite packing, filler briquetting, gland, two O type circle, leakage-proof ring, needle roller thrust bearing, valve rod guide pin bushing, bonnet, flat key, handle, stud, nut, oil nozzle, shaft block ring.
Wherein valve rod and body spline joint, graphite packing is five Combined-type sheet-type formula graphite annulus fillers, and filler briquetting upper end pressure-bearing surface is taper, and it is stressed can adjust constantly automatically.
Further, be provided with stopper ring between bonnet and body.
The beneficial effects of the utility model are: (1) is adopted two O type circles to guarantee that impurity can't enter and is held the axle zone, and the attachment portion can better be lubricated; (2) valve body is that integral type is forged, and intensity is good, has eliminated the pressure of the middle screw thread that is threaded of double-body bike, and not welding residue needs cleaning, has reduced the external diameter of junction, has reduced the overall weight of valve; (3) Integral valve seat of taper and reverse Sealing shield ring provide better sealing effect; (4) valve rod and body spline joint, do straight line motion, reduced the operation moment of torsion, reduces the sealing surface friction, eliminates cut; (5) five piece combined ring-type expanded graphite packing good airproof performances in high pressure and low pressure, even still can keep good sealing effect under the operating mode of instantaneous pressure and high temperature, and its separate type fast and easy loading and unloading, sealing reliably can be used for low contaminated-fluid; Can automatically adjust when (6) on the filler briquetting, the design of end toper pressure-bearing surface makes it stressed, separate type has shortened the time of reprocessing.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
Embodiment: see also shown in Figure 1, stop valve, this stop valve comprise valve body 1, valve seat 2, valve rod point 3, valve rod 4, Sealing shield ring 5, gland nut 6, filler heelpiece piece 7, packing filling 8, graphite packing 9, filler briquetting 10, gland 11, upper O type circle 12, leakage-proof ring 13, needle roller thrust bearing 14, valve rod guide pin bushing 15, bonnet 16, lower O type circle 17, flat key 18, handle 19, stud 20, nut 21, oil nozzle 22, stopper ring 23, shaft block ring 24.
Wherein valve rod 1 and body spline joint, do straight line motion, reduced the operation moment of torsion.Graphite packing 9 is five Combined-type sheet-type formula graphite annulus fillers, good airproof performance, and its separate type fast and easy loading and unloading can be used for low contaminated-fluid.Filler briquetting 10 upper end pressure-bearing surfaces are taper, and it is stressed can adjust constantly automatically, is provided with stopper ring 23 between bonnet 16 and body, have avoided the loosening of bonnet screw thread.
The above record, only for utilizing the embodiment of this origination techniques content, modification, variation that any those skilled in the art use this creation to do all belong to the scope of the claims that this creation is advocated, and are not limited to those disclosed embodiments.
Claims (2)
1. a stop valve, is characterized in that comprising integral valve body, taper Integral valve seat, valve rod point, valve rod, reverse Sealing shield ring, gland nut, filler heelpiece piece, packing filling, graphite packing, filler briquetting, gland, two O type circle, leakage-proof ring, needle roller thrust bearing, valve rod guide pin bushing, bonnet, flat key, handle, stud, nut, oil nozzle, shaft block ring;
Wherein valve rod and body spline joint, graphite packing is five Combined-type sheet-type formula graphite annulus fillers, and filler briquetting upper end pressure-bearing surface is taper, and it is stressed can adjust constantly automatically.
2. stop valve according to claim 1, is characterized in that: be provided with stopper ring between described bonnet and body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157250 CN203272810U (en) | 2013-04-01 | 2013-04-01 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157250 CN203272810U (en) | 2013-04-01 | 2013-04-01 | Stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203272810U true CN203272810U (en) | 2013-11-06 |
Family
ID=49503223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320157250 Expired - Fee Related CN203272810U (en) | 2013-04-01 | 2013-04-01 | Stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203272810U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405955A (en) * | 2014-11-25 | 2015-03-11 | 苏州福润机械有限公司 | Valve graphite sealing structure |
| CN105840849A (en) * | 2016-04-26 | 2016-08-10 | 邵阳富鑫实业有限公司 | Automatic control valve for molten aluminum pipelining |
-
2013
- 2013-04-01 CN CN 201320157250 patent/CN203272810U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405955A (en) * | 2014-11-25 | 2015-03-11 | 苏州福润机械有限公司 | Valve graphite sealing structure |
| CN105840849A (en) * | 2016-04-26 | 2016-08-10 | 邵阳富鑫实业有限公司 | Automatic control valve for molten aluminum pipelining |
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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: 20131106 Termination date: 20150401 |
|
| EXPY | Termination of patent right or utility model |