CN204628784U - Leakproof stop valve - Google Patents
Leakproof stop valve Download PDFInfo
- Publication number
- CN204628784U CN204628784U CN201520338672.3U CN201520338672U CN204628784U CN 204628784 U CN204628784 U CN 204628784U CN 201520338672 U CN201520338672 U CN 201520338672U CN 204628784 U CN204628784 U CN 204628784U
- Authority
- CN
- China
- Prior art keywords
- packing ring
- valve
- filler
- valve rod
- 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 relates to a kind of Leakproof stop valve, is mainly used in stop valve field; Comprise valve body, in valve body, valve rod is set, valve rod upper end arranges handwheel through valve gap, and arrange filler through valve rod bottom valve gap, filler top arranges gland, gland compresses filler by nut, filler bottom, sets gradually the first packing ring, the second packing ring through valve rod, and the first packing ring is metal washer, metal washer lower end arranges boss, and the second packing ring is rubber elasticity packing ring.The utility model can effectively prevent stop valve leakage, and service life is long, has saved cost.
Description
Technical field
The utility model relates to a kind of Leakproof stop valve, is mainly used in stop valve field.
Background technique
In production, stop valve, along with increasing service life, starts leakage gradually, and after especially stop valve is opened, leakage is serious, and use platen to push down, do not have positive effect, the stop valve that have to more renew, causes waste, and change stop valve and also lose time, impact is produced.
Model utility content
The purpose of this utility model is to provide a kind of Leakproof stop valve, and can effectively prevent stop valve leakage, service life is long, has saved cost.
Leakproof stop valve described in the utility model, comprise valve body, arrange valve rod in valve body, valve rod upper end arranges handwheel through valve gap, bottom valve gap, filler is set through valve rod, filler top arranges gland, and gland compresses filler by nut, filler bottom, the first packing ring, the second packing ring is set gradually through valve rod, first packing ring is metal washer, and metal washer lower end arranges boss, and the second packing ring is rubber elasticity packing ring.
When described Leakproof stop valve is opened completely, valve rod moves, the first packing ring and the second packing ring block bottom valve gap, effectively prevent from valve rod leakage.
The first described packing ring is stainless steel packing ring or aluminum alloy packing ring; The second described packing ring can arrange 2-4; Leak preventing effect is better.
Aborning, although a part of old stop valve can also continue to use, start leakage, impact is normally produced, and causes waste.Find through experiment repeatedly, leakage main cause is that service life is long, and valve rod corrosion seriously attenuates, and liquid is from the valve rod slot leakage attenuated, and simple pressured packing or filler cannot seal completely.
After experiment repeatedly and practice, valve rod sets gradually rubber elasticity packing ring and metal washer, leak of liquid when effectively can stop valve wide open.
Compared with prior art, the beneficial effects of the utility model are:
(1) the utility model structure is simple, after valve rod uses a period of time, and rust corrosion gradually, valve rod is tapered, and starting leakage, by arranging the first packing ring and the second packing ring, effectively preventing liquid from valve rod discharging; Second packing ring is that rubber elasticity packing ring can gap between effective sealing valve rod and valve gap, and the first packing ring is set to metal washer, and effectively can meet requirement of strength, sealing effect is better;
(2) second packing rings are set to stainless steel packing ring or aluminum alloy packing ring, and the second packing ring can arrange 2-4, sealing and anti-leakage better effects if;
(3) extend service life, save enterprise's cost of production.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present utility model.
In figure: 1, fluid input 2, valve body 3, first packing ring 4, second packing ring 5, filler 6, gland 7, handwheel 8, valve gap 9, valve rod 10, fluid output 11, boss.
Embodiment
Below in conjunction with embodiment, the utility model is described further:
As shown in Figure 1, described in the utility modelly comprise valve body 2, valve rod 9 is set in valve body 2, valve rod 9 upper end arranges handwheel 7 through valve gap 8, it is characterized in that, bottom valve gap 8, filler 5 is set through valve rod 9, filler 5 top arranges gland 6, and gland 6 compresses filler 5 by nut, filler 5 bottom, the first packing ring 3, second packing ring 4 is set gradually through valve rod 9, first packing ring 3 is metal washer, and metal washer lower end arranges boss 11, and the first packing ring 3 is stainless steel packing ring or aluminum alloy packing ring, second packing ring 4 is rubber elasticity packing ring, and the second packing ring 4 can arrange 2-4.
Working principle:
When described Leakproof stop valve is opened completely, valve rod 9 moves, the first packing ring 3 and the second packing ring 4 block bottom valve gap 8, and fluid flows into from fluid input 1, flows out from fluid output 10, can not leak.
Aborning, although a part of old stop valve can also continue to use, start leakage, impact is normally produced, and causes waste.Find through experiment repeatedly, leakage main cause is that service life is long, and valve rod 9 corrosion seriously attenuates, and liquid is from valve rod 9 slot leakage attenuated, and simple pressured packing or filler 5 cannot seal completely.
After experiment repeatedly and practice, valve rod 9 sets gradually the first packing ring 3 and the second packing ring 4, first packing ring 3 is metal washer, effectively meet requirement of strength, the second packing ring 4 is rubber elasticity packing ring, can meet seal request, when effectively can stop valve wide open, liquid is by slot leakage between valve rod 9 and valve gap 8, compare with general stop valve, extend service life, saved cost of production.
Claims (3)
1. a Leakproof stop valve, comprise valve body (2), valve rod (9) is set in valve body (2), valve rod (9) upper end arranges handwheel (7) through valve gap (8), it is characterized in that, valve gap (8) bottom arranges filler (5) through valve rod (9), filler (5) top arranges gland (6), gland (6) compresses filler (5) by nut, filler (5) bottom, the first packing ring (3) is set gradually through valve rod (9), second packing ring (4), first packing ring (3) is metal washer, metal washer lower end arranges boss (11), second packing ring (4) is rubber elasticity packing ring.
2. Leakproof stop valve according to claim 1, is characterized in that, the first packing ring (3) is stainless steel packing ring or aluminum alloy packing ring.
3. Leakproof stop valve according to claim 1 and 2, is characterized in that, the second packing ring (4) arranges 2-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520338672.3U CN204628784U (en) | 2015-05-22 | 2015-05-22 | Leakproof stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520338672.3U CN204628784U (en) | 2015-05-22 | 2015-05-22 | Leakproof stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628784U true CN204628784U (en) | 2015-09-09 |
Family
ID=54047814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520338672.3U Expired - Fee Related CN204628784U (en) | 2015-05-22 | 2015-05-22 | Leakproof stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628784U (en) |
-
2015
- 2015-05-22 CN CN201520338672.3U patent/CN204628784U/en not_active Expired - Fee Related
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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: 20150909 Termination date: 20160522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |