CN208764451U - A kind of throttle valve stem sealing structure - Google Patents
A kind of throttle valve stem sealing structure Download PDFInfo
- Publication number
- CN208764451U CN208764451U CN201821349608.5U CN201821349608U CN208764451U CN 208764451 U CN208764451 U CN 208764451U CN 201821349608 U CN201821349608 U CN 201821349608U CN 208764451 U CN208764451 U CN 208764451U
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing
- lubricant layer
- valve body
- valve rod
- 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 provides a kind of throttle valve stem sealing structure, including by valve body, support ring, sealing ring, pressure ring, gland nut, valve rod, lubricant layer, retaining ring composition, the sealing ring is O-ring seals, the pressure ring is convex, the end of the valve body is spill, the support ring, sealing ring, pressure ring, lubricant layer and retaining ring are installed in the concave structure of valve end, the valve rod is mounted in valve body, the valve rod passes through the end of valve body, the support ring set is on valve rod, the sealing snare is on valve rod, the sealing ring is located at the top of support ring, the sealing ring it is upper, lower two sides are mounted on retaining ring, and sealing ring with it is upper, lubricant layer is provided between the retaining ring of lower two sides, the lubricant layer is coated with lubricating grease, the pressure ring is sleeved on valve rod, the pressure ring is located at the top of sealing ring, the pressure ring passes through pressure Box nut is pressed on sealing ring, lubricant layer and retaining ring in support ring, and the gland nut is connected through a screw thread the end for being mounted on valve body.
Description
Technical field
The utility model relates to technical field of mechanical more particularly to a kind of throttle valve stem sealing structures.
Background technique
Throttle valve is by changing throttling section or chock length to control the valve of fluid flow, and throttle valve is generally used for
Load variation is less or the occasion of less demanding to speed stability is convenient for manufacturing with simple structure, easy to repair etc. excellent
Point, but general throttle valve easily causes the ring wear of valve rod in use, so that the sealing performance of throttle valve stem declines,
So as to cause the generation of throttle valve gas leak phenomenon.
Utility model content
In view of the above technical problems, the utility model provides a kind of throttle valve stem sealing structure, letter reasonable in design
It is single, it is easily manufactured, so that the sealing ring of throttle valve stem is not easy to wear, the sealing performance of throttle valve stem is improved, is avoided
The generation of throttle valve gas leak phenomenon.
To realize the above-mentioned technical purpose, the technical solution adopted in the utility model are as follows: a kind of throttle valve stem sealing structure,
Including being made of valve body, support ring, sealing ring, pressure ring, gland nut, valve rod, lubricant layer, retaining ring, the sealing ring is that O shape is close
Seal, the pressure ring are convex, and the retaining ring is polytetrafluoroethylene (PTFE) retaining ring, and the end of the valve body is spill, the support ring,
Sealing ring, pressure ring, lubricant layer and retaining ring are installed in the concave structure of valve end, and the valve rod is mounted in valve body, should
Valve rod passes through the end of valve body, and the support ring set is on valve rod, and for the sealing snare on valve rod, which is located at support
The top of ring, the upper and lower two sides of the sealing ring are mounted on retaining ring, and are provided between sealing ring and the retaining ring of upper and lower two sides
Lubricant layer, the lubricant layer are coated with lubricating grease, which is not more than 2mm, and the pressure ring is sleeved on valve rod, the pressure
Ring is located at the top of sealing ring, and the pressure ring is pressed on sealing ring, lubricant layer and retaining ring in support ring by gland nut,
The gland nut is connected through a screw thread the end for being mounted on valve body.
Preferably, the lubricant layer is with a thickness of 1mm.
The advantageous effects of the utility model are: the throttle valve stem sealing structure, reasonable in design simple, manufacture
It is convenient, so that the sealing ring of throttle valve stem is not easy to wear, the sealing performance of throttle valve stem is improved, avoids throttle valve leakage
The generation of gas phenomenon.
Detailed description of the invention
Fig. 1 is a kind of throttle valve stem sealed structural schematic diagram.
Wherein: 1 is valve body, and 2 be support ring, and 3 be sealing ring, and 4 be pressure ring, and 5 be gland nut, and 6 be valve rod, and 7 be lubrication
Layer, 8 be retaining ring.
Specific embodiment
In conjunction with attached drawing, now the utility model is described in further detail.
As shown in Figure 1, a kind of throttle valve stem sealing structure, including by valve body 1, support ring 2, sealing ring 3, pressure ring 4, pressure
Box nut 5, valve rod 6, lubricant layer 7, retaining ring 8 form, and the sealing ring 3 is O-ring seals, and the pressure ring 4 is convex, the gear
Circle 8 is polytetrafluoroethylene (PTFE) retaining ring, and the end of the valve body 1 is spill, the support ring 2, sealing ring 3, pressure ring 4, lubricant layer 7 with
Retaining ring 8 is installed in the concave structure of 1 end of valve body, and the valve rod 6 is mounted in valve body 1, which passes through valve body 1
End, 2 sets of the support ring is on valve rod 6, and for 3 sets of the sealing ring on valve rod 6, which is located at the upper of support ring 2
Side, the upper and lower two sides of the sealing ring 3 are mounted on retaining ring 8, and are provided with profit between sealing ring 3 and the retaining ring 8 of upper and lower two sides
Slip layer 7, the lubricant layer 7 are coated with lubricating grease, which is not more than 2mm, and the pressure ring 4 is sleeved on valve rod 6,
The pressure ring 4 is located at the top of sealing ring 3, and the pressure ring 4 presses sealing ring 3, lubricant layer 7 and retaining ring 8 by gland nut 6
In support ring 2, the gland nut 6 is connected through a screw thread the end for being mounted on valve body 1.
In specific implementation, the lubricant layer is with a thickness of 1mm.
In actual work, sealing ring 3 and retaining ring 8 are uniformly smeared one layer in 3 both ends of sealing ring increase retaining ring 8, assembly
Lubricant layer 7 since 8 hardness of retaining ring and wear resistance are higher than sealing ring 3, and is coated with one layer of lubricant layer 7, not when valve rod 6 moves
It easily moves with valve rod 6, is unlikely to deform by pressure ring 4 and the extruding of support ring 2.
Preferred embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the inventive concept of the premise, several deformations can also be made, improves and substitutes, these are all
Belong to the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (2)
1. a kind of throttle valve stem sealing structure, it is characterised in that: including by valve body, support ring, sealing ring, pressure ring, gland spiral shell
Mother, valve rod, lubricant layer, retaining ring composition, the sealing ring are O-ring seals, and the pressure ring is convex, and the retaining ring is polytetrafluoro
The end of ethylene retaining ring, the valve body is spill, and the support ring, sealing ring, pressure ring, lubricant layer and retaining ring are installed in valve body
In the concave structure of end, the valve rod is mounted in valve body, which passes through the end of valve body, and the support ring set is in valve rod
On, for the sealing snare on valve rod, which is located at the top of support ring, and the upper and lower two sides of the sealing ring are respectively mounted
There is retaining ring, and be provided with lubricant layer between sealing ring and the retaining ring of upper and lower two sides, the lubricant layer is coated with lubricating grease, the lubrication
Thickness degree is not more than 2mm, and the pressure ring is sleeved on valve rod, which is located at the top of sealing ring, and the pressure ring passes through gland
Nut is pressed on sealing ring, lubricant layer and retaining ring in support ring, and the gland nut, which is connected through a screw thread, is mounted on valve body
End.
2. a kind of throttle valve stem sealing structure according to claim 1, it is characterised in that: the lubricant layer with a thickness of
1mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821349608.5U CN208764451U (en) | 2018-08-21 | 2018-08-21 | A kind of throttle valve stem sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821349608.5U CN208764451U (en) | 2018-08-21 | 2018-08-21 | A kind of throttle valve stem sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764451U true CN208764451U (en) | 2019-04-19 |
Family
ID=66132325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821349608.5U Expired - Fee Related CN208764451U (en) | 2018-08-21 | 2018-08-21 | A kind of throttle valve stem sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208764451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060384A (en) * | 2021-09-30 | 2022-02-18 | 中国神华煤制油化工有限公司 | Bolt sealing structure of rod mill barrel and rod mill |
-
2018
- 2018-08-21 CN CN201821349608.5U patent/CN208764451U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060384A (en) * | 2021-09-30 | 2022-02-18 | 中国神华煤制油化工有限公司 | Bolt sealing structure of rod mill barrel and rod mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 |