CN204099648U - A kind of low moment of torsion metal hard-sealing stopcock - Google Patents
A kind of low moment of torsion metal hard-sealing stopcock Download PDFInfo
- Publication number
- CN204099648U CN204099648U CN201420608728.8U CN201420608728U CN204099648U CN 204099648 U CN204099648 U CN 204099648U CN 201420608728 U CN201420608728 U CN 201420608728U CN 204099648 U CN204099648 U CN 204099648U
- Authority
- CN
- China
- Prior art keywords
- valve
- seat
- interior
- valve body
- faucet body
- 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 kind of low moment of torsion metal hard-sealing stopcock, belong to valve field.This low moment of torsion metal hard-sealing stopcock comprises valve body, faucet body, and faucet body is connected with valve rod, and valve rod top is connected with valve body screw thread, is also provided with rolling bearing between valve rod and valve body near faucet body; Described rolling bearing top is provided with block, and stop width is greater than the width of bearing; Described valve body is provided with the limited step of block adaptation; Described faucet body also fits tightly and is provided with metal seat valve; Described valve seat is divided into interior valve seat and outer seat, and interior valve seat is fixed by screws in outer seat, and interior valve seat and outer seat joint place are also provided with seal washer, are also provided with counterbalance spring between interior valve seat and valve body.Stopcock of the present utility model is adopted to open and close moment little, economical and practical.
Description
Technical field
The utility model relates to valve field, specifically the hard sealing rotary plug valve of a kind of low moment of torsion technology.
Background technique
Stopcock is mainly used in cutting off, connecting and throttle medium, is widely used in oilfield exploitation, conveying and refining equipment, is also widely used in petrochemical industry, chemical industry, coal gas, rock gas, liquefied petroleum gas (LPG), HVAC industry and general industry simultaneously.
State commonly used by stopcock is open in usual, when needs carry out locking to valve time, pulls valve rod, drives the faucet body choosing that upper-end surface is large, lower end surface is little to fill 90 degree, positive closing circulation passage.But in Long-Time Service process, faucet body due to pressure medium high, the moment of keying is large, and faucet body easily weares and teares, and usually can only be used in environment under low pressure.
In order to make stopcock be applicable in more occasions, the keying moment reducing stopcock is just extremely important.
Model utility content the utility model aims to provide a kind of low moment of torsion metal hard-sealing stopcock, reduces to reach the object that stopcock opens and closes moment.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of low moment of torsion metal hard-sealing stopcock, comprise valve body, faucet body, it is characterized in that: faucet body is connected with valve rod, valve rod top is connected with valve body screw thread, is also provided with rolling bearing between valve rod and valve body near faucet body; Described rolling bearing top is provided with block, and stop width is greater than the width of bearing; Described valve body is provided with the limited step of block adaptation; Described faucet body also fits tightly and is provided with metal seat valve; Described valve seat is divided into interior valve seat and outer seat, and interior valve seat is fixed by screws in outer seat, and interior valve seat and outer seat joint place are also provided with seal washer, are also provided with counterbalance spring between interior valve seat and valve body.
Further, be provided with between described outer seat and valve body and seal O shape and enclose.
Further, described seal washer is Expanded graphite.
The beneficial effects of the utility model are:
One, on valve rod top with valve body junction for being threaded, the mode be threaded connection, when rotation valve rod, required firmly less.
Two, be also provided with rolling bearing between valve rod and valve body, rolling bearing effectively reduces the frictional force when opening and closing, and reduces and opens and closes moment, makes to be more prone to when opening and closing.
Three, rolling bearing is also provided with block, the width of block is greater than the width of bearing.Limited step on block and valve body with the use of, play and prevent rolling bearing from coming off, and limit the effect that faucet body moves up.
Four, valve seat is divided into interior outer seat, strengthens interchangeability of parts, outer seat and faucet body metal hard-sealing, after outer seat generation wearing and tearing are scrapped, only need change outer seat, save financial cost.
Five, split type valve seat processing is more simple, is applicable to produce in enormous quantities.
Accompanying drawing explanation
Fig. 1 is the structural representation of the low moment of torsion metal hard-sealing stopcock that the utility model provides;
Mark in figure: 1 be valve body, 2 be screw, 3 be spring, 4 be outer seat, 5 be faucet body, 6 be limited step, 7 be block, 8 be rolling bearing, 9 be valve rod, 10 be seal washer, 12 be interior valve seat for sealing O shape circle, 11.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
As shown in Figure 1, a kind of low moment of torsion metal hard-sealing stopcock, comprises valve body 1, faucet body 5, valve seat 4, it is characterized in that: faucet body 5 is connected with valve rod 9, valve rod 9 top is threaded with valve body 1, is also provided with rolling bearing 8 between valve rod 9 and valve body 1 near faucet body 5; Described rolling bearing 8 top is provided with block 7, and block 7 width is greater than the width of bearing; Described valve body 1 is provided with the limited step 6 of block 7 adaptation; Described faucet body 5 also fits tightly and is provided with metal seat valve; Described valve seat is divided into interior valve seat 12 and outer seat 4, and interior valve seat 12 is fixed by screws in outer seat 4 li, and interior valve seat 12 is also provided with seal washer 11 with outer seat 4 joint place, is also provided with counterbalance spring 3 between interior valve seat 12 and valve body 1.Be provided with between described outer seat 4 and valve body 1 and seal O shape and enclose 10.Described seal washer 11 is Expanded graphite.
In use, pull spanner, band ovable valve stem 9 rotates, be threaded between valve rod 9 with valve body 1, prolong screw thread to exert oneself downwards, when rotated, rolling bearing 8 rotates, compared to sliding bearing, can the less frictional force that must reduce between valve rod 9 and valve body 1, rolling bearing 8 is also provided with block 7, block 7 and the limited step 6 on valve body 1 with the use of, play and prevent rolling bearing 8 from coming off, and limit the effect that faucet body 5 moves up.Valve seat is divided into interior outer seat, wherein forms metal hard-sealing between outer seat 4 and faucet body 5, and interior valve seat 12 is arranged on outer seat 4 li, is fixed by screw 2.Interior valve seat 12 and outer seat joint place are also provided with the seal washer 11 of Expanded graphite material, and the seal washer 11 of Expanded graphite makes interior valve seat 12 can not reveal with the junction of outer seat 4.The design of interior outer seat, makes the processing of valve seat be more prone to, and can adapt to produce in enormous quantities, and after valve base sealing inefficacy is scrapped, only need change the outer seat 4 of wearing and tearing, and interior valve seat 12 can also continue to use, and saves financial cost.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a low moment of torsion metal hard-sealing stopcock, comprise valve body, faucet body, it is characterized in that: faucet body is connected with valve rod, valve rod top is connected with valve body screw thread, is also provided with rolling bearing between valve rod and valve body near faucet body; Described rolling bearing top is provided with block, and stop width is greater than the width of bearing; Described valve body is provided with the limited step of block adaptation; Described faucet body also fits tightly and is provided with metal seat valve; Described valve seat is divided into interior valve seat and outer seat, and interior valve seat is fixed by screws in outer seat, and interior valve seat and outer seat joint place are also provided with seal washer, are also provided with counterbalance spring between interior valve seat and valve body.
2. one according to claim 1 low moment of torsion metal hard-sealing stopcock, is characterized in that: be provided with between described outer seat and valve body and seal O shape and enclose.
3. one according to claim 1 low moment of torsion metal hard-sealing stopcock, is characterized in that: described seal washer is Expanded graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608728.8U CN204099648U (en) | 2014-10-21 | 2014-10-21 | A kind of low moment of torsion metal hard-sealing stopcock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420608728.8U CN204099648U (en) | 2014-10-21 | 2014-10-21 | A kind of low moment of torsion metal hard-sealing stopcock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204099648U true CN204099648U (en) | 2015-01-14 |
Family
ID=52268078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420608728.8U Expired - Fee Related CN204099648U (en) | 2014-10-21 | 2014-10-21 | A kind of low moment of torsion metal hard-sealing stopcock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204099648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265942A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Low-torque metal hard sealing plug valve |
-
2014
- 2014-10-21 CN CN201420608728.8U patent/CN204099648U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265942A (en) * | 2014-10-21 | 2015-01-07 | 成都市翻鑫家科技有限公司 | Low-torque metal hard sealing plug 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: 20150114 Termination date: 20151021 |
|
| EXPY | Termination of patent right or utility model |