CN205078906U - Novel ball valve - Google Patents
Novel ball valve Download PDFInfo
- Publication number
- CN205078906U CN205078906U CN201520773371.3U CN201520773371U CN205078906U CN 205078906 U CN205078906 U CN 205078906U CN 201520773371 U CN201520773371 U CN 201520773371U CN 205078906 U CN205078906 U CN 205078906U
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- China
- Prior art keywords
- mentioned
- valve rod
- gland
- valve body
- valve
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- Expired - Fee Related
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- 210000004907 gland Anatomy 0.000 claims abstract description 30
- 239000000945 filler Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model discloses a novel ball valve, including valve body and valve rod, above -mentioned valve rod passes above -mentioned valve body, and above -mentioned valve rod outer wall is equipped with the flange, and this flange is located the valve body, and above -mentioned valve rod cover is equipped with the thrust pad, and this thrust pad is located between above -mentioned flange top face and the above -mentioned valve body, and above -mentioned valve body top is formed with confined space with above -mentioned valve rod, and this confined space has put the filler, and above -mentioned valve body top is connected with the gland, and above -mentioned gland compresses tightly above -mentioned the filler, and above -mentioned valve rod is located to above -mentioned gland cover. The beneficial effects of the utility model are that: the effectual valve rod moment of torsion that has reduced, the disclosure risk has been reduced, more safe and reliable.
Description
Technical field
The utility model relates to ball valve technical field.
Background technique
Ball valve is that open-shut device (spheroid) is driven by valve rod, and around the valve that ball valve axis rotates.Ball valve is come out the 1950's, and along with the develop rapidly of science and technology, updating of production technology and product structure, in the 50 short years, has developed rapidly and become a kind of main valve class.In the country of western industrial prosperity, the use of ball valve is constantly risen year by year.
Forged steel small ball switch is light, and volume is little, and sealing is reliable, structure is simple, easy to maintenance, be widely used in many aspects such as space flight, petrochemical industry, long-distance transport pipes, light industry and food, building, in recent years to future developments such as high temperature, high pressure, heavy caliber, high leak tightness, long lifetives.Valve rod place is as one of main leakage point of valve, and conventional Seal Design is the fastening compression gland adopting screw thread on nut and valve rod, thus compresses filler, reaches sealing.Existing valve rod leak-proof structure causes open and close torque excessive.
Model utility content
The purpose of this utility model is to provide a kind of ball valve, and this ball valve open and close torque is less.
For achieving the above object, the utility model provides following technological scheme:
A kind of ball valve, comprise valve body and valve rod, above-mentioned valve rod is through above-mentioned valve body, and above-mentioned valve rod outer wall is provided with flange, this flange is positioned at valve body, above-mentioned valve stem casing is provided with thrust pad, and this thrust pad is between above-mentioned flange top end and above-mentioned valve body, and above-mentioned body top and above-mentioned valve rod are formed with seal space, sealing space is equipped with filler, above-mentioned valve body top is connected with gland, and above-mentioned gland compresses above-mentioned filler, and above-mentioned gland is sheathed on above-mentioned valve rod.
Preferably, gasket ring is provided with between above-mentioned gland and filler.
Preferably, above-mentioned valve stem tip is provided with handle, is provided with gap between this handle and above-mentioned gland.
Handle is fixed on valve rod by tightening nut.
Gland is sheathed on valve rod, Spielpassung between gland and valve rod.
Gland is fixed on valve body by two hexagon socket head cap screws, and now, this hexagon socket head cap screw also possesses the effect to handle rotary stopper.
Owing to leaving gap between handle and gland, therefore tightening of nut can not make valve rod increase the axial force of thrust pad, increases this place's moment of torsion; Simultaneously because valve rod does not contact with gland, only filler and valve rod, and thrust pad and valve stem contacts, greatly reduce open and close torque; Can not affect the compression of gland, hexagon socket head cap screw provides enough power, ensures gland sealed reliability.
Control valve rod rotation by handle and make valve opening and closing, the effect of hexagon socket head cap screw limited location in the process, owing to not interfering with bolt in rotatable handle process, without the need to making handle bottom surface higher than hexagon socket head cap screw top, thus reduce the length of valve rod, be convenient to valve rod load from body cavity, finally reach and reduce leak point, the object reduced costs.
The beneficial effects of the utility model are: effectively reduce valve rod moment of torsion; Decrease disclosure risk, more safe and reliable.Shorten shaft length, can load from body cavity, and not need to load after body base perforate, reduce leak point, reduce amount of parts, reduce costs.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 be the utility model handle with gland coordinate schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
The technological scheme that the utility model is specifically implemented is:
A kind of ball valve, comprise valve body 9 and valve rod 10, above-mentioned valve rod 10 is through above-mentioned valve body 9, above-mentioned valve rod 10 outer wall is provided with flange 6, this flange 6 is positioned at valve body 9, above-mentioned valve rod 10 is arranged with thrust pad 5, this thrust pad 5 is between above-mentioned flange 6 top end and above-mentioned valve body 9, above-mentioned valve body 9 top and above-mentioned valve rod 10 are formed with seal space, sealing space is equipped with filler 4, above-mentioned valve body 9 top is connected with gland 2, and above-mentioned gland 2 compresses above-mentioned filler 4, and above-mentioned gland 2 is sheathed on above-mentioned valve rod 10.
Gasket ring 3 is provided with between above-mentioned gland 2 and filler 4.
Above-mentioned valve rod 10 top is provided with handle 7, is provided with gap between this handle 7 and above-mentioned gland 2.
Handle 7 is fixed on valve rod 10 by tightening nut 1.
Gland 2 is sheathed on valve rod 10, Spielpassung between gland 2 and valve rod 10.
Gland 2 is fixed on valve body 9 by two hexagon socket head cap screws 8, and now, this hexagon socket head cap screw 8 also possesses the effect to handle 7 rotary stopper.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a ball valve, comprises valve body and valve rod, and above-mentioned valve rod is through above-mentioned valve body, it is characterized in that, above-mentioned valve rod outer wall is provided with flange, and this flange is positioned at valve body, and above-mentioned valve stem casing is provided with thrust pad, this thrust pad is between above-mentioned flange top end and above-mentioned valve body, above-mentioned body top and above-mentioned valve rod are formed with seal space, and sealing space is equipped with filler, and above-mentioned valve body top is connected with gland, above-mentioned gland compresses above-mentioned filler, and above-mentioned gland is sheathed on above-mentioned valve rod.
2. ball valve according to claim 1, is characterized in that, is provided with gasket ring between above-mentioned gland and filler.
3. ball valve according to claim 2, is characterized in that, above-mentioned valve stem tip is provided with handle, is provided with gap between this handle and above-mentioned gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520773371.3U CN205078906U (en) | 2015-10-08 | 2015-10-08 | Novel ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520773371.3U CN205078906U (en) | 2015-10-08 | 2015-10-08 | Novel ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205078906U true CN205078906U (en) | 2016-03-09 |
Family
ID=55431316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520773371.3U Expired - Fee Related CN205078906U (en) | 2015-10-08 | 2015-10-08 | Novel ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205078906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559485A (en) * | 2016-11-10 | 2018-01-09 | 俞钟晓 | A kind of ball valve for debating other open/close states |
-
2015
- 2015-10-08 CN CN201520773371.3U patent/CN205078906U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559485A (en) * | 2016-11-10 | 2018-01-09 | 俞钟晓 | A kind of ball valve for debating other open/close states |
| CN107559485B (en) * | 2016-11-10 | 2021-06-08 | 俞钟晓 | Ball valve capable of distinguishing opening and closing states |
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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: 20160309 |