CN204729643U - A kind of available valve clack cover carries out the cast steel stop valve of upper sealing - Google Patents
A kind of available valve clack cover carries out the cast steel stop valve of upper sealing Download PDFInfo
- Publication number
- CN204729643U CN204729643U CN201520490934.8U CN201520490934U CN204729643U CN 204729643 U CN204729643 U CN 204729643U CN 201520490934 U CN201520490934 U CN 201520490934U CN 204729643 U CN204729643 U CN 204729643U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- upper sealing
- pipe thread
- sealing
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 59
- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 17
- 210000004907 Glands Anatomy 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000001138 Tears Anatomy 0.000 description 1
Abstract
The utility model relates to the cast steel stop valve that available valve clack cover carries out upper sealing, be intended to provide a kind of good seal performance, cost is low, the available valve clack cover of long service life carries out the cast steel stop valve of upper sealing, the utility model comprises valve body, wherein: valve body is provided with valve gap, described valve gap is fixed with described valve body with coordinating of nut by stud, middle flange gasket is provided with between described valve body and valve gap, described valve body is provided with sealing surface of seat, sealing surface of seat is provided with flap, described flap inside is provided with pipe thread hole, valve rod is provided with above flap, valve rod is provided with the pipe thread coordinating upper sealing valve lobe lid with the pipe thread hole of flap, described valve gap is provided with clear opening, clear opening lower end is provided with screw thread, the screw thread of upper seal support and clear opening screws, stuffing box is provided with above upper seal support, stuffing box is built with filler, filler pressing sleeve and Gland is provided with above described filler.
Description
Technical field
The utility model relates to stop valve, is specifically related to the cast steel stop valve that a kind of available valve clack cover carries out upper sealing.
Background technique
At present, existing cast steel stop valve, upper sealing adopts the conical surface of valve rod and the conical surface of upper seal support to carry out the sealing that coincide, in valve opening and closing process, can be there is relative rotation motion with the conical surface of upper seal support in the conical surface of valve rod, produce frictional force, the conical surface of valve rod and the conical surface of upper seal support easily wear and tear, produce and leak, life of valve is short; The conical surface of valve rod and the conical surface of upper seal support carry out the sealing that coincide in addition, and valve rod will strengthen and could produce the conical surface, and will process valve clack cover separately, and material is many, operation is many, cost is high.
Model utility content
A kind of good seal performance, cost are low in order to provide for the purpose of this utility model, the available valve clack cover of long service life carries out the cast steel stop valve of upper sealing.
For realizing the purpose of this utility model, the utility model adopts following technological scheme: a kind of available valve clack cover carries out the cast steel stop valve of upper sealing, comprise valve body, it is characterized in that: valve body is provided with valve gap, described valve gap is fixed with described valve body with coordinating of nut by stud, middle flange gasket is provided with between described valve body and valve gap, described valve body is provided with sealing surface of seat, sealing surface of seat is provided with flap, described flap inside is provided with pipe thread hole, valve rod is provided with above flap, valve rod is provided with the pipe thread coordinating upper sealing valve lobe lid with the pipe thread hole of flap, described valve gap is provided with clear opening, clear opening lower end is provided with screw thread, the screw thread of upper seal support and clear opening screws, stuffing box is provided with above upper seal support, stuffing box is built with filler, filler pressing sleeve and Gland is provided with above described filler, described filler pressing sleeve and Gland to be fixed with described valve gap by cooperatively interacting of straight pin and swing bolt, the handwheel that valve rod can be allowed to move up and down is provided with above described valve rod, described handwheel is fixed by pad and locking nut and valve rod, the below of handwheel is provided with Stem Mut, described Stem Mut is by tightening screw and valve gap support is fixed.
As preferably, described flap is provided with 55 degree of pipe thread holes, and 55 degree of pipe thread of described upper sealing valve lobe lid and 55 degree of pipe thread holes of flap screw, good seal performance, prevents flowing medium from flowing backwards along valve rod and enters upper seal support; Upper sealing valve lobe lid adopts seamless steel pipe to make, and machining allowance is little, and cost is low.As preferably, described flap is provided with the sealing surface contacted with valve seat, and described sealing surface is oblique sealing surface.
As preferably, below described valve rod, be provided with the round platform with valve-stem integrated, the round platform of valve rod can be fixed on flap tapped hole when 55 degree of pipe thread of described upper sealing valve lobe lid and 55 degree of pipe thread holes of flap screw inner; When valve opening, valve clack cover directly contacts sealing with upper seal support, and valve rod does not need to strengthen, and material is saved, and cost is low.
The beneficial effects of the utility model: described flap inside is provided with 55 degree of pipe thread holes, described upper sealing valve lobe lid 55 degree of pipe thread and flap 55 degree of pipe thread screw, good seal performance, prevents flowing medium from flowing backwards along valve rod and enters upper seal support, produce and leak; Upper sealing valve lobe lid adopts seamless steel pipe to make, and machining allowance is little, and cost is low; The handwheel that valve rod can be allowed to move up and down is provided with above valve rod, pass through rotation hand wheel, upper sealing valve lobe lid moves up and down, does not produce relative movement when upper sealing valve lobe lid contacts with upper seal support along with valve rod, upper sealing valve lobe moves upward, upper sealing valve lobe lid and upper seal support directly contact and carry out the sealing that coincide, and do not produce frictional force, and upper seal support is not easy wearing and tearing, be not easy to produce and leak, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1 be valve body, 2 be sealing surface of seat, 3 be flap, 4 be valve clack sealing surface, 5 be valve rod, 6 be upper sealing valve lobe lid, 7 be middle flange gasket, 8 be valve gap, 9 be upper seal support, 10 be filler, 11 be straight pin, 12 be swing bolt, 13 be nut, 14 be filler pressing sleeve, 15 be Gland, 16 be Stem Mut, 17 be Cock screw, 18 be handwheel, 19 be pad, 20 be locking nut, 21 be round platform, 22 for clear opening.
Embodiment
Further illustrate below in conjunction with accompanying drawing:
As shown in Figure 1: the utility model comprises valve body, wherein: valve body is provided with valve gap, described valve gap is fixed with described valve body with coordinating of nut by stud, middle flange gasket is provided with between described valve body and valve gap, described valve body is provided with sealing surface of seat, sealing surface of seat is provided with flap, described flap inside is provided with pipe thread hole, valve rod is provided with above flap, valve rod is provided with the pipe thread coordinating upper sealing valve lobe lid with the pipe thread hole of flap, described valve gap is provided with clear opening, clear opening lower end is provided with screw thread, the screw thread of upper seal support and clear opening screws, stuffing box is provided with above upper seal support, stuffing box is built with filler, filler pressing sleeve and Gland is provided with above described filler, described filler pressing sleeve and Gland to be fixed with described valve gap by cooperatively interacting of straight pin and swing bolt, the handwheel that valve rod can be allowed to move up and down is provided with above described valve rod, described handwheel is fixed by pad and locking nut and valve rod, the below of handwheel is provided with Stem Mut, described Stem Mut is by tightening screw and valve gap support is fixed, described upper sealing valve lobe lid adopts seamless steel pipe to make, and described flap is provided with 55 degree of pipe thread holes, and 55 degree of pipe thread of described upper sealing valve lobe lid and 55 degree of pipe thread holes of flap screw, described flap is provided with the sealing surface contacted with valve seat, and described sealing surface is oblique sealing surface, be provided with the round platform with valve-stem integrated below described valve rod, the round platform of valve rod can be fixed on flap tapped hole when 55 degree of pipe thread of described upper sealing valve lobe lid and 55 degree of pipe thread holes of flap screw inner.
Rotate clockwise handwheel, valve rod is moved downward, and flap moves downward, and the sealing surface of flap is contacted with sealing surface of seat, realizes the effect of sealing, then for closing, block medium; Otherwise rotate counterclockwise handwheel, valve rod drives flap up, until upper sealing valve lobe lid and upper seal support coincide, then for opening, connect medium.
The purpose of this utility model, feature and advantage will in conjunction with the embodiments, are further described with reference to accompanying drawing.To contribute to understanding the utility model by embodiment, but not limit content of the present utility model.All distortion that those of ordinary skill in the art can directly derive from content disclosed in the utility model or associate, all should think protection domain of the present utility model.
Claims (4)
1. an available valve clack cover carries out the cast steel stop valve of upper sealing, comprise valve body, it is characterized in that: valve body is provided with valve gap, described valve gap is fixed with described valve body with coordinating of nut by stud, middle flange gasket is provided with between described valve body and valve gap, described valve body is provided with sealing surface of seat, sealing surface of seat is provided with flap, described flap inside is provided with pipe thread hole, valve rod is provided with above flap, valve rod is provided with the pipe thread coordinating upper sealing valve lobe lid with the pipe thread hole of flap, described valve gap is provided with clear opening, clear opening lower end is provided with screw thread, the screw thread of upper seal support and clear opening screws, stuffing box is provided with above upper seal support, stuffing box is built with filler, filler pressing sleeve and Gland is provided with above described filler, described filler pressing sleeve and Gland to be fixed with described valve gap by cooperatively interacting of straight pin and swing bolt, the handwheel that valve rod can be allowed to move up and down is provided with above described valve rod, described handwheel is fixed by pad and locking nut and valve rod, the below of handwheel is provided with Stem Mut, described Stem Mut is by tightening screw and valve gap support is fixed.
2. available valve clack cover according to claim 1 carries out the cast steel stop valve of upper sealing, it is characterized in that: described upper sealing valve lobe lid adopts seamless steel pipe to make, described flap is provided with 55 degree of pipe thread holes, and 55 degree of pipe thread of described upper sealing valve lobe lid and 55 degree of pipe thread holes of flap screw.
3. available valve clack cover according to claim 2 carries out the cast steel stop valve of upper sealing, it is characterized in that: described flap is provided with the sealing surface contacted with valve seat, and described sealing surface is oblique sealing surface.
4. available valve clack cover according to claim 3 carries out the cast steel stop valve of upper sealing, it is characterized in that: below described valve rod, be provided with the round platform with valve-stem integrated, the round platform of valve rod can be fixed on flap tapped hole when 55 degree of pipe thread of described upper sealing valve lobe lid and 55 degree of pipe thread holes of flap screw inner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520490934.8U CN204729643U (en) | 2015-07-06 | 2015-07-06 | A kind of available valve clack cover carries out the cast steel stop valve of upper sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520490934.8U CN204729643U (en) | 2015-07-06 | 2015-07-06 | A kind of available valve clack cover carries out the cast steel stop valve of upper sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204729643U true CN204729643U (en) | 2015-10-28 |
Family
ID=54387996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520490934.8U Expired - Fee Related CN204729643U (en) | 2015-07-06 | 2015-07-06 | A kind of available valve clack cover carries out the cast steel stop valve of upper sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204729643U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730540A (en) * | 2018-08-23 | 2018-11-02 | 江苏华太电力仪表有限公司 | Instrument block valve |
| CN111998081A (en) * | 2020-08-27 | 2020-11-27 | 高兆帕阀门集团有限公司 | Special stop valve for oxygen |
-
2015
- 2015-07-06 CN CN201520490934.8U patent/CN204729643U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730540A (en) * | 2018-08-23 | 2018-11-02 | 江苏华太电力仪表有限公司 | Instrument block valve |
| CN111998081A (en) * | 2020-08-27 | 2020-11-27 | 高兆帕阀门集团有限公司 | Special stop valve for oxygen |
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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: 20151028 Termination date: 20170706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |