CN219755359U - High-pressure balanced stop valve - Google Patents
High-pressure balanced stop valve Download PDFInfo
- Publication number
- CN219755359U CN219755359U CN202320740880.0U CN202320740880U CN219755359U CN 219755359 U CN219755359 U CN 219755359U CN 202320740880 U CN202320740880 U CN 202320740880U CN 219755359 U CN219755359 U CN 219755359U
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- Prior art keywords
- valve
- sealing
- valve body
- cover
- flow passage
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 82
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model discloses a high-pressure balanced stop valve, which comprises a valve body, a valve cover, a valve rod, a connecting bracket, a hand wheel and a valve clack, wherein the connecting bracket is arranged on the valve cover, one side of the connecting bracket, which is far away from the valve cover, is provided with a valve rod nut, the valve rod is in threaded fit with the valve rod nut and extends into a valve body flow channel in a penetrating way, and the valve clack is arranged at one end of the valve rod, which is positioned in the valve body flow channel, and is characterized in that: the sealing device comprises a valve body and a valve cover, and is characterized in that a sealing member is arranged between the valve body and the valve cover, the sealing member comprises a sealing part pressed between the valve body and the valve cover and a connecting part formed by extending the sealing part along the vertical direction at two sides of the valve body, the connecting part is provided with two connecting baffle plates respectively attached to the outer walls of the valve body and the valve cover, a first threaded hole is formed in the connecting baffle plates, a connecting bolt is arranged in the first threaded hole, and a second threaded hole is formed in the positions, corresponding to the first threaded hole, of the outer walls of the valve body and the valve cover; the utility model can ensure the sealing performance between the valve body and the valve cover and ensure the stability of the connection between the valve body and the valve cover.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a high-pressure balanced stop valve.
Background
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so that when the valve is closed, pressure must be applied to the valve clack so as to force the sealing surface not to leak.
Patent CN209511123U discloses a stop valve, is equipped with in the valve body with valve clack, valve gap matched with valve rod, the middle part of valve rod is equipped with prevents changeing the board group, installs the hand wheel on the upper portion of valve rod, links to each other through the valve rod nut between hand wheel and the valve rod, the top of valve rod is equipped with the instruction piece, is equipped with on the hand wheel with instruction piece complex stroke indicator cover. In the implementation, under the effect of anti-rotation plate group, the circumference of valve rod is spacing, can only do axial reciprocating motion, and the valve clack follows the valve rod motion, and then opens or closes the disk seat, because the valve clack only has axial atress, does not have circumferential friction, has protected sealed face, has prolonged life.
The existing stop valve cover and the valve body are connected and fastened by bolts, the bolts usually penetrate through the valve body and the valve cover and are locked by nuts, but the mode has a disadvantage that if the mode is not locked, medium in the valve body flows out from a gap between the valve body and the valve cover, and the tightness of the medium cannot be ensured, so that the connecting structure of the stop valve is improved.
Disclosure of Invention
The utility model aims to overcome the defects and the shortcomings of the prior art and provides a high-pressure balanced stop valve.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-pressure balanced stop valve, includes valve body, valve gap, valve rod, linking bridge, hand wheel and valve clack, the linking bridge sets up on the valve gap and linking bridge keeps away from valve gap one side and is provided with the valve rod nut, valve rod and valve rod nut screw-thread fit and valve rod run through and extend to the valve body runner in, the valve clack is installed in the one end that the valve rod is located the valve body runner, be provided with sealing member between valve body and the valve gap, sealing member is including the sealing portion and the sealing portion between valve body and the valve gap extend the connecting portion that form along the vertical direction in the valve body both sides, the connecting portion has two connection separation blades that laminate with valve body and valve gap outer wall respectively, first screw hole and first screw hole internal are provided with connecting bolt on the connection separation blade, valve body and valve gap outer wall correspond first screw hole position and are provided with the second screw hole.
As a preferable technical scheme of the utility model, sealing wedges are respectively arranged between the valve body and the valve cover on the upper side and the lower side of the sealing part, and sealing grooves are arranged at the positions of the valve body and the valve cover corresponding to the sealing wedges.
As a preferable technical scheme of the utility model, the cross section area of the sealing wedge is trapezoid, and the cross section area of the sealing wedge gradually becomes smaller from one side of the sealing part to the side far from the sealing part.
As a preferable technical scheme of the utility model, each sealing wedge block is provided with two sealing inclined planes connected with the sealing part and a connecting end face connected with the outer end of the sealing inclined plane, and a gap exists between the connecting end face and the inner top wall of the sealing groove.
As a preferable technical scheme of the utility model, a positioning hole for the valve rod to pass through is formed in the center of the sealing part, the sealing part extends to the inner side of the valve body at the position of the positioning hole to form a flow blocking part, and one end of the flow blocking part, which is far away from the positioning hole, is abutted against the inner wall of the valve body.
As a preferable technical scheme of the utility model, the choke part comprises a cylinder part and a horn sleeve formed by extending the outer end of the cylinder part towards the inner wall of the valve body, and one end of the horn sleeve away from the cylinder part is abutted against the inner wall of the valve body.
As a preferable technical scheme of the utility model, the connecting bracket is provided with a through hole for installing a valve rod nut, and the valve rod nut is installed at the through hole and fixed by a locating pin.
As a preferable technical scheme of the utility model, the valve body flow passage comprises an inlet flow passage, an outlet flow passage and a valve port positioned between the inlet flow passage and the outlet flow passage, and an arc-shaped flow passage is arranged at the connection position of the inlet flow passage and the valve port.
Compared with the prior art, the utility model has the beneficial effects that: the sealing performance between valve body and the valve gap has been guaranteed in sealing member's setting, adopts the mode of both sides bolt fastening to install more stably simultaneously, and sealing portion is pressed between valve body and valve gap, can avoid the medium to leak, and the connecting portion that sealing portion both sides extend and form then contacts with valve body and valve gap outer wall respectively, and the lateral wall adopts the bolted connection mode, installs reliable and stable.
Drawings
Fig. 1 is a schematic structural view of the present embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion D of FIG. 2;
FIG. 4 is an enlarged view of part B of FIG. 1;
fig. 5 is an enlarged view of a portion C of fig. 1.
Reference numerals: 1. a valve body; 2. a valve cover; 3. a valve stem; 4. a connecting bracket; 5. a hand wheel; 6. a valve flap; 7. a valve stem nut; 8. a sealing member; 9. a sealing part; 10. a connection part; 11. connecting a baffle; 12. a first threaded hole; 13. a second threaded hole; 14. a sealing wedge; 15. sealing grooves; 16. sealing inclined planes; 17. a connecting end face; 18. positioning holes; 19. a choke part; 20. a cylindrical portion; 21. a horn sleeve; 22. a through hole; 23. a positioning pin; 24. an inlet flow passage; 25. an outlet flow passage; 26. an arc-shaped flow passage.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model.
Specific embodiments of the present utility model are described below with reference to the accompanying drawings.
The high-pressure balanced stop valve comprises a valve body 1, a valve cover 2, a valve rod 3, a connecting support 4, a hand wheel 5 and a valve clack 6, wherein the connecting support 4 is arranged on the valve cover 2, one side, away from the valve cover 2, of the connecting support 4 is provided with a valve rod nut 7, the valve rod 3 is in threaded fit with the valve rod nut 7, the valve rod 3 penetrates through and extends into a flow passage of the valve body 1, the valve clack 6 is arranged at one end, located in the flow passage of the valve body 1, of the valve rod 3, a sealing member 8 is arranged between the valve body 1 and the valve cover 2, the sealing member 8 comprises a sealing part 9 pressed between the valve body 1 and the valve cover 2 and a connecting part 10 formed by extending the sealing part 9 along the vertical direction on two sides of the valve body 1, the connecting part 10 is provided with two connecting baffle plates 11 respectively attached to the outer walls of the valve body 1 and the valve cover 2, the connecting baffle plates 11 are provided with first threaded holes 12 and connecting bolts in the first threaded holes 12, and the positions of the valve body 1 and the outer walls of the valve cover 2 are provided with second threaded holes 13 corresponding to the positions of the first threaded holes 12.
The sealing performance between the valve body 1 and the valve cover 2 is guaranteed by the arrangement of the sealing component 8, the installation is more stable by adopting a mode of bolt fixation at two sides, the sealing part 9 is pressed between the valve body 1 and the valve cover 2, medium leakage can be avoided, the connecting parts 10 formed by extending two sides of the sealing part 9 are respectively contacted with the outer walls of the valve body 1 and the valve cover 2, and the side walls are in a bolt connection mode, so that the installation is stable and reliable.
Sealing wedge blocks 14 are respectively arranged between the valve body 1 and the valve cover 2 on the upper side and the lower side of the sealing part 9, sealing grooves 15 are arranged at positions of the valve body 1 and the valve cover 2 corresponding to the sealing wedge blocks 14, in the embodiment, the sealing wedge blocks 14 are made of graphite, the whole sealing member 8 is made of graphite, and the graphite wedge blocks have certain longitudinal elastic deformation, so that the valve body 1 and the valve cover 2 are matched more tightly.
The cross-sectional area of the sealing wedge 14 is trapezoidal, and the cross-sectional area of the sealing wedge 14 gradually decreases from the side of the sealing part 9 to the side away from the sealing part 9.
Each sealing wedge 14 is provided with two sealing inclined planes 16 connected with the sealing part 9 and a connecting end face 17 connected with the outer end of the sealing inclined plane 16, a gap exists between the connecting end face 17 and the inner top wall of the sealing groove 15, and the matching precision requirement of the sealing wedge 14 and the sealing groove 15 is reduced.
The center of the sealing part 9 is provided with a positioning hole 18 for the valve rod 3 to pass through, the sealing part 9 extends to the inner side of the valve body 1 at the position of the positioning hole 18 to form a flow blocking part 19, and one end of the flow blocking part 19 away from the positioning hole 18 is abutted with the inner wall of the valve body 1.
The choke 19 includes drum portion 20 and drum portion 20 outer end to the horn cover 21 that valve body 1 inner wall direction extended formation, and the one end that drum portion 20 was kept away from to horn cover 21 is held in touch with valve body 1 inner wall, and fluid contact horn cover 21 lateral wall is blocked by it, effectively avoids the medium drunken.
The connecting bracket 4 is provided with a through hole 22 for installing a valve rod 3 nut, and the valve rod 3 nut is installed at the through hole 22 and fixed by a locating pin 23.
The flow passage of the valve body 1 comprises an inlet flow passage 24, an outlet flow passage 25 and a valve port positioned between the inlet flow passage 24 and the valve port, and an arc-shaped flow passage 26 is arranged at the connection position of the inlet flow passage 24 and the valve port, so that dead angles of a fluid flow path are reduced, and noise is reduced.
While there have been shown and described what are at present considered to be the basic principles, the main features and the advantages of the utility model, it will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, but is only described in the foregoing embodiments and description as being preferred, and not intended to limit the utility model thereto, but rather to provide various changes and modifications within the scope of the utility model as defined by the appended claims and their equivalents without departing from the spirit and scope of the utility model.
Claims (8)
1. The utility model provides a high-pressure balance stop valve, includes valve body, valve gap, valve rod, linking bridge, hand wheel and valve clack, the linking bridge sets up on the valve gap and linking bridge keeps away from valve gap one side and is provided with the valve rod nut, valve rod and valve rod nut screw-thread fit and valve rod run through and extend to in the valve body runner, the valve clack is installed in the one end that the valve rod is located the valve body runner, its characterized in that: the valve is characterized in that a sealing member is arranged between the valve body and the valve cover, the sealing member comprises a sealing part pressed between the valve body and the valve cover and a connecting part formed by extending the sealing part along the vertical direction on two sides of the valve body, the connecting part is provided with two connecting baffle plates respectively attached to the outer walls of the valve body and the valve cover, a first threaded hole is formed in the connecting baffle plates, a connecting bolt is arranged in the first threaded hole, and a second threaded hole is formed in the positions, corresponding to the first threaded hole, of the outer walls of the valve body and the valve cover.
2. The high pressure balanced shut-off valve of claim 1, wherein: sealing wedges are respectively arranged between the valve body and the valve cover on the upper side and the lower side of the sealing part, and sealing grooves are arranged at positions of the valve body and the valve cover corresponding to the sealing wedges.
3. The high pressure balanced shut-off valve of claim 2, wherein: the cross section area of the sealing wedge is trapezoid, and the cross section area of the sealing wedge gradually becomes smaller from one side of the sealing part to the side far away from the sealing part.
4. A high pressure balanced shut-off valve according to claim 3, wherein: each sealing wedge block is provided with two sealing inclined planes connected with the sealing part and a connecting end face connected with the outer ends of the sealing inclined planes, and a gap exists between the connecting end face and the inner top wall of the sealing groove.
5. The high pressure balanced shut-off valve of claim 1, wherein: the sealing part is provided with a positioning hole for the valve rod to pass through, the sealing part extends to the inner side of the valve body at the position of the positioning hole to form a flow blocking part, and one end of the flow blocking part, which is far away from the positioning hole, is abutted against the inner wall of the valve body.
6. The high pressure balanced shut-off valve of claim 5, wherein: the choke part comprises a cylindrical part and a horn sleeve formed by extending the outer end of the cylindrical part towards the direction of the inner wall of the valve body, and one end of the horn sleeve, which is far away from the cylindrical part, is abutted against the inner wall of the valve body.
7. The high pressure balanced shut-off valve of claim 1, wherein: the connecting support is provided with a through hole for installing a valve rod nut, and the valve rod nut is installed at the through hole and fixed through a locating pin.
8. The high pressure balanced shut-off valve of claim 1, wherein: the valve body flow passage comprises an inlet flow passage, an outlet flow passage and a valve port positioned between the inlet flow passage and the outlet flow passage, and an arc-shaped flow passage is arranged at the connection position of the inlet flow passage and the valve port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320740880.0U CN219755359U (en) | 2023-04-03 | 2023-04-03 | High-pressure balanced stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320740880.0U CN219755359U (en) | 2023-04-03 | 2023-04-03 | High-pressure balanced stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219755359U true CN219755359U (en) | 2023-09-26 |
Family
ID=88084639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320740880.0U Active CN219755359U (en) | 2023-04-03 | 2023-04-03 | High-pressure balanced stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219755359U (en) |
-
2023
- 2023-04-03 CN CN202320740880.0U patent/CN219755359U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |