CN220770195U - Composite sealing dome valve structure - Google Patents
Composite sealing dome valve structure Download PDFInfo
- Publication number
- CN220770195U CN220770195U CN202322458567.0U CN202322458567U CN220770195U CN 220770195 U CN220770195 U CN 220770195U CN 202322458567 U CN202322458567 U CN 202322458567U CN 220770195 U CN220770195 U CN 220770195U
- Authority
- CN
- China
- Prior art keywords
- sealing
- valve
- sealing ring
- ball top
- valve core
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 109
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000007790 scraping Methods 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- -1 electric power Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model relates to the technical field of dome valves, in particular to a composite sealing dome valve structure, which comprises a valve body, a valve core, a valve rod and a top plate, wherein a sealing structure is arranged between the valve core and the inner side wall of the top plate, the sealing structure comprises a dome sealing ring sleeved on the valve core, a sealing valve seat and a rubber sealing ring which are arranged on the inner side wall of the top plate, the sealing valve seat and the dome sealing ring are mutually contacted to form a hard sealing structure, the rubber sealing ring and the dome sealing ring are mutually pressed to form a soft sealing structure, the composite sealing dome valve structure adopts a structure combining the hard sealing and the soft sealing, the hard sealing structure ensures better sealing performance, and the soft sealing can provide auxiliary sealing function when cleaning and scraping materials attached to the valve core, so that the integral sealing performance is good, the wear is avoided, and the performance is more stable.
Description
Technical Field
The utility model relates to the technical field of dome valves, in particular to a composite sealing dome valve structure.
Background
The dome valve is used as a novel special valve for bulk materials, can be effectively and rapidly opened and closed to perform bulk materials and interception, is widely applied to industries such as metallurgy, cement, electric power, chemical industry, building materials, food and the like at present, and generally comprises a valve body and a hemispherical body arranged in the valve body, wherein the hemispherical body is generally arranged on the valve body through rotation of a rotating shaft, and the hemispherical body is driven to rotate in the valve body through rotation of a driving rotating shaft, so that the position of the hemispherical body in the valve body is adjusted to adjust the opening and closing state of a valve port.
At present, a dome valve generally adopts an independent hard sealing structure or an independent soft sealing structure, and when the hard sealing structure is adopted, materials are easy to squeeze and adhere between a valve core and the sealing structure in the process of rotating a valve rod, so that the sealing performance is poor due to structural damage; when only soft sealing is adopted, the elastic ring is worn, has short service life and is not durable.
Disclosure of Invention
The utility model aims to provide a composite sealing dome valve structure, which solves the problems of poor sealing performance and rapid abrasion caused by the adoption of a separate hard sealing structure or a separate soft sealing structure in the prior art.
In order to solve the problems, the utility model relates to a composite sealing dome valve structure which adopts the following technical scheme:
the utility model provides a compound seal dome valve structure, includes valve body, case, valve rod and roof, be provided with seal structure between case and the roof inside wall, seal structure is including the ball top sealing washer of cover on locating the case and install sealing valve seat, the rubber seal on the roof inside wall, sealing valve seat and ball top sealing washer paste each other and touch and form hard seal structure, press each other and touch and form soft seal structure between rubber seal and the ball top sealing washer.
Further, an annular step coaxial with the valve core is arranged on the upper surface of the valve core, the ball top sealing ring is sleeved at the annular step, and the outer end part of the ball top sealing ring extends out of the annular step.
Further, the surfaces of the sealing valve seat and the rubber sealing ring, which are in contact with the ball top sealing ring, are respectively concave spherical surfaces matched with the convex spherical surfaces of the ball top sealing ring.
Further, install the sealing washer cassette on the inside wall of roof, the sealing washer cassette has the draw-in groove, rubber seal inlays and locates in the draw-in groove to rubber seal's tip protrusion is outside the draw-in groove.
Further, the valve core is arranged on the hemispherical frame, and the valve core is connected with the valve rod through the hemispherical frame.
Further, a ball top pressing plate is arranged at the top of the valve core, the ball top pressing plate is fixedly connected with the valve core through a screw, and the ball top sealing ring is clamped between the ball top pressing plate and the top of the valve core.
Furthermore, the ball top sealing ring and the sealing valve seat are both made of ceramic materials.
The beneficial effects of the utility model are as follows:
1. according to the composite sealing dome valve structure, a structure of combining hard sealing and soft sealing is adopted, the hard sealing structure ensures good sealing performance, the soft sealing can clean and scrape materials attached to the valve core and simultaneously provide auxiliary sealing functions, the overall sealing performance is good, abrasion is not easy, and the performance is more stable.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a top view of the present utility model.
Fig. 2 is a vertical cross-sectional view of fig. 1.
Fig. 3 is an enlarged view of the structure at i in fig. 2.
The reference numerals in the drawings illustrate: the valve comprises a valve body 1, a valve core 2, a valve rod 3, a top plate 4, a ball top sealing ring 5, a sealing valve seat 6, a rubber sealing ring 7, a sealing ring 8, a hemispherical frame 9 and a ball top pressing plate 10.
Detailed Description
In order to make the technical purpose, technical scheme and beneficial effect of the present utility model more clear, the technical scheme of the present utility model is further described below with reference to the accompanying drawings and specific embodiments.
Example 1: 1-3, including valve body 1, case 2, valve rod 3 and roof 4, be provided with seal structure between case 2 and the roof 4 inside wall, seal structure is including cover locate the ball top sealing washer 5 on case 2 and install seal disk seat 6, the rubber seal 7 on roof 4 inside wall, seal disk seat 6 and ball top sealing washer 5 contact each other and form the seal structure of hardness, and the rubber seal 7 and ball top sealing washer 5 contact each other and form the seal structure of softness.
Specifically, an annular step coaxial with the valve core is arranged on the upper surface of the valve core 2, the ball top sealing ring 5 is sleeved at the annular step, and the outer end part of the ball top sealing ring 5 extends out of the annular step. The inner side wall of the top plate 4 is provided with a convex edge, the sealing valve seat 6 is sleeved at the convex edge of the top plate 4, and the surface of the sealing valve seat 6, which is in contact with the ball top sealing ring 5, is a concave spherical surface matched with the convex spherical shape of the ball top sealing ring 5, so that the sealing valve seat 6 and the ball top sealing ring 5 are mutually in seamless fit. In this embodiment, the ball top sealing ring 5 and the sealing valve seat 6 are made of ceramic materials, so that a hard sealing structure is formed between the sealing valve seat 6 and the ball top sealing ring 5, which are in seamless fit with each other.
Install sealing washer cassette 8 on the inside wall of roof 4, sealing washer cassette 8 has the draw-in groove, and rubber seal 7 inlays and locates in the draw-in groove to rubber seal 7's tip protrusion is outside the draw-in groove. The surfaces of the rubber sealing rings 7 contacted with the ball top sealing rings 5 are respectively concave spherical surfaces matched with the convex spherical surfaces of the ball top sealing rings 5, so that the rubber sealing rings 7 and the ball top sealing rings 5 are in seamless fit with each other to form a soft sealing structure.
The structure that adopts hard seal and soft seal to combine together, the hard seal structure has guaranteed that the dome valve has better sealing performance, and soft seal can clean the material that adheres to on the case 2 and strike off, can provide the function of auxiliary seal again, guarantees that the whole leakproofness of dome valve is better, difficult wearing and tearing, and the performance is more stable.
In this embodiment, the valve element 2 is mounted on a hemispherical holder 9, and the valve element 2 is connected to the valve stem 3 through the hemispherical holder 9.
In addition, a ball top pressing plate 10 is mounted on the top of the valve core 2, the ball top pressing plate 10 is fixedly connected with the valve core 2 through a screw, and a ball top sealing ring 5 is clamped between the ball top pressing plate 10 and the top of the valve core 2.
Finally, what should be said is: the above embodiments are only for illustrating the technical solution of the present utility model, but the scope of the present utility model is not limited thereto, and any equivalent substitutions for the present utility model and modifications or partial substitutions without departing from the spirit and scope of the present utility model should be covered by the scope of the claims of the present utility model.
Claims (7)
1. The utility model provides a compound sealed dome valve structure, includes valve body, case, valve rod and roof, its characterized in that: the sealing structure comprises a ball top sealing ring sleeved on the valve core, a sealing valve seat arranged on the inner side wall of the top plate and a rubber sealing ring, wherein the sealing valve seat and the ball top sealing ring are mutually contacted to form a hard sealing structure, and the rubber sealing ring and the ball top sealing ring are mutually pressed to form a soft sealing structure.
2. A composite seal dome valve structure as set forth in claim 1 wherein: the upper surface of the valve core is provided with an annular step coaxial with the valve core, the ball top sealing ring is sleeved at the annular step, and the outer end part of the ball top sealing ring extends out of the annular step.
3. A composite seal dome valve structure as set forth in claim 1 wherein: the surfaces of the sealing valve seat and the rubber sealing ring, which are in contact with the ball top sealing ring, are respectively concave spherical surfaces matched with the convex spherical surfaces of the ball top sealing ring.
4. A composite seal dome valve structure as set forth in claim 1 wherein: install the sealing washer cassette on the inside wall of roof, the sealing washer cassette has the draw-in groove, rubber seal inlays and locates in the draw-in groove to rubber seal's tip protrusion is outside the draw-in groove.
5. A composite seal dome valve structure as set forth in claim 1 wherein: the valve core is installed on the hemisphere frame, and the valve core is connected with the valve rod through the hemisphere frame.
6. A composite seal dome valve structure as set forth in claim 1 wherein: the top of the valve core is provided with a ball top pressing plate, the ball top pressing plate is fixedly connected with the valve core through a screw, and the ball top sealing ring is clamped between the ball top pressing plate and the top of the valve core.
7. A composite seal dome valve structure as set forth in claim 1 wherein: the ball top sealing ring and the sealing valve seat are all made of ceramic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322458567.0U CN220770195U (en) | 2023-09-11 | 2023-09-11 | Composite sealing dome valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322458567.0U CN220770195U (en) | 2023-09-11 | 2023-09-11 | Composite sealing dome valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220770195U true CN220770195U (en) | 2024-04-12 |
Family
ID=90598309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322458567.0U Active CN220770195U (en) | 2023-09-11 | 2023-09-11 | Composite sealing dome valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220770195U (en) |
-
2023
- 2023-09-11 CN CN202322458567.0U patent/CN220770195U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220770195U (en) | Composite sealing dome valve structure | |
| CN2763648Y (en) | Ceramic seal double-board gate valve | |
| CN2911345Y (en) | Mechanical sealing dynamic ring | |
| CN2329814Y (en) | Elastic valve seat wedge gate valve | |
| CN211432714U (en) | Dust box of dust collector | |
| CN112283377A (en) | Combined assembly type water valve | |
| CN208703126U (en) | The high more lip motor sealings of beat | |
| CN101984275A (en) | Full-lining bidirectional composite soft sealing butterfly valve | |
| CN208457240U (en) | A kind of Novel Brake Valve | |
| CN207648140U (en) | A kind of sealing structure for shaft end | |
| CN207814516U (en) | A kind of hard sealing membrane piece | |
| CN2525318Y (en) | Ball valve | |
| CN201391628Y (en) | Ball valve | |
| CN2474834Y (en) | Ceramic valve plate valve | |
| CN211820804U (en) | High-performance hard-sealing bidirectional knife pressing gate valve | |
| CN214579073U (en) | Manual control one-way valve | |
| CN201844058U (en) | Discharge valve of VC mixer | |
| CN212080184U (en) | Stop valve | |
| CN210178972U (en) | Split type valve core dome valve for removing ash slag | |
| CN220016153U (en) | Floating ball valve | |
| CN212177923U (en) | Flange connection double-eccentric half-ball valve | |
| CN220713591U (en) | Cup cover structure with switching function and cup | |
| CN220204684U (en) | Intelligent agricultural irrigation valve sealing structure | |
| CN220850832U (en) | Eccentric ball valve | |
| CN212297698U (en) | Self-cleaning hard sealing ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |