CN216975809U - Butterfly valve convenient to seal and maintain - Google Patents
Butterfly valve convenient to seal and maintain Download PDFInfo
- Publication number
- CN216975809U CN216975809U CN202123341454.XU CN202123341454U CN216975809U CN 216975809 U CN216975809 U CN 216975809U CN 202123341454 U CN202123341454 U CN 202123341454U CN 216975809 U CN216975809 U CN 216975809U
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- valve
- flange
- nut
- butterfly valve
- valve body
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Abstract
The utility model provides a butterfly valve convenient to sealed maintenance, its includes valve body (10), is equipped with the disk seat in the valve body, the disk seat include section of thick bamboo portion (7), the excircle of section of thick bamboo portion is inserted in the interior circle of disk seat left end tang coordinately, the right-hand member of section of thick bamboo portion inwards extends has flange (12), the outer fringe of valve plate can contact with the flange, the left end of section of thick bamboo portion outwards extends has disk seat flange (3), the disk seat flange passes through bolted connection to valve body flange (5) on, the bolt right part has first nut (4) and second nut (6) soon, first nut and second nut are located valve body flange both sides respectively, left side joint (1) are through expansion joint (2) and disk seat flange joint. The sealing maintenance principle of the butterfly valve convenient for sealing maintenance is that the abrasion loss of the valve seat and the valve plate can be compensated by adjusting the first nut and the second nut. The butterfly valve sealing device has the advantages that the butterfly valve does not need to be assembled and disassembled when being sealed and maintained, the maintenance is convenient, and the shutdown time of the butterfly valve can be greatly reduced.
Description
Technical Field
The utility model relates to a butterfly valve.
Background
The structure of the butterfly valve generally comprises a valve body, a valve plate and a valve seat, wherein the valve seat is arranged on the valve body, the valve plate is connected with a rotating shaft, and the rotating shaft is rotated to enable the valve plate to be in contact with or separated from the valve seat, so that the butterfly valve is opened or closed. The contact surface of the valve plate is provided with a flexible material to improve the sealing performance, but the sealing surface is abraded, the sealing performance is reduced after a long time, and the butterfly valve needs to be dismounted for sealing maintenance.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides the butterfly valve convenient for sealing maintenance, and the butterfly valve does not need to be disassembled during sealing maintenance.
The technical scheme of the utility model is that the butterfly valve convenient for sealing maintenance comprises a valve body 10, wherein a valve seat is arranged in the valve body, a valve plate 14 is fixedly connected with a rotating shaft 13, and the rotating shaft can enable the valve plate to be in contact with or separated from the valve seat; the valve seat is characterized by comprising a cylinder part 7, wherein the outer circle of the cylinder part is inserted into the inner circle of a spigot at the left end of the valve seat in a matched mode, a sealing ring is arranged between the cylinder part and the spigot, a flange 12 extends inwards from the right end of the cylinder part, the outer edge of a valve plate can be in contact with the flange, a valve seat flange 3 extends outwards from the left end of the cylinder part, the valve seat flange is connected to a valve body flange 5 through bolts, a first nut 4 and a second nut 6 are screwed to the right portion of each bolt, the first nut 4 and the second nut 6 are respectively located on two sides of the valve body flange 5, and the left joint 1 is connected with the valve seat flange through an expansion joint 2.
The sealing maintenance principle of the butterfly valve convenient for sealing maintenance is that the abrasion loss of the valve seat and the valve plate can be compensated by adjusting the first nut 4 and the second nut 6, and the expansion amount of the expansion joint is larger than the abrasion gap.
The butterfly valve sealing device has the advantages that the butterfly valve does not need to be assembled and disassembled when being sealed and maintained, the maintenance is convenient, and the shutdown time of the butterfly valve can be greatly reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
The reference symbols respectively denote: 1-left joint, 2-expansion joint, 3-valve seat flange, 4-first nut, 5-valve body flange, 6-second nut, 7-barrel part, 8-upper supporting seat, 9-sealing ring, 10-valve body, 11-right joint, 12-flange, 13-rotating shaft, 14-valve plate, 15-connecting part and 16-lower supporting seat.
Detailed Description
Specific embodiments of the present invention will now be described with reference to the accompanying drawings.
A butterfly valve convenient for sealing maintenance comprises a valve body 10, a right connector 11 is arranged at the right end of the valve body, a valve seat is arranged in the valve body, a valve plate 14 is fixedly connected with a rotating shaft 13 through a connecting portion 15, the rotating shaft can be rotated to enable the valve plate to be in contact with or separated from the valve seat, the upper portion of the rotating shaft extends out of an upper supporting seat 8, a sealing ring 9 is arranged between the rotating shaft and the upper supporting seat, the supporting seat extends upwards on the valve body, the lower end of the rotating shaft is inserted into a lower supporting seat 16, and the lower supporting seat extends downwards from the valve body.
The valve seat comprises a cylinder part 7, the outer circle of the cylinder part is inserted into the inner circle of a spigot at the left end of the valve seat in a matching mode, a sealing ring is arranged between the cylinder part and the spigot, a flange 12 extends inwards from the right end of the cylinder part, the mouth part of the flange is a conical surface, the outer edge of the valve plate is attached to the conical surface, a valve seat flange 3 extends outwards from the left end of the cylinder part, the valve seat flange is connected to a valve body flange 5 through a bolt, a first nut 4 and a second nut 6 are screwed to the right part of the bolt, the first nut 4 and the second nut 6 are respectively located on two sides of the valve body flange 5, and the left connector 1 is connected with the valve seat flange through an expansion joint 2.
Adjusting the first nut 4 and the second nut 6 changes the axial position of the valve seat, since the first joint and the second joint are fixed on the external equipment, the valve seat of the expansion joint is arranged to move.
The conical surface of the flange opening part can be replaced by an arc conical surface, and the outer edge of the valve plate is tangent to the arc conical surface, so that the sealing effect is better.
Claims (3)
1. A butterfly valve convenient for sealing maintenance comprises a valve body (10), wherein a valve seat is arranged in the valve body, a valve plate (14) is fixedly connected with a rotating shaft (13), and the valve plate can be contacted with or separated from the valve seat by rotating the rotating shaft; the valve seat is characterized by comprising a cylinder part (7), wherein the outer circle of the cylinder part is inserted into the inner circle of a spigot at the left end of the valve seat in a matched mode, a sealing ring is arranged between the cylinder part and the spigot, a flange (12) extends inwards from the right end of the cylinder part, the outer edge of a valve plate can be contacted with the flange, a valve seat flange (3) extends outwards from the left end of the cylinder part, the valve seat flange is connected to a valve body flange (5) through bolts, a first nut (4) and a second nut (6) are screwed to the right portion of each bolt, the first nut (4) and the second nut (6) are respectively located on two sides of the valve body flange (5), and a left connector (1) is connected with the valve seat flange through an expansion joint (2).
2. The butterfly valve of claim 1 wherein the flange opening is shaped as a conical surface, the outer edge of the valve plate abutting the conical surface.
3. The butterfly valve of claim 1 wherein the flange mouth is shaped as an arcuate conical surface, the outer edge of the valve plate being tangential to the arcuate conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123341454.XU CN216975809U (en) | 2021-12-29 | 2021-12-29 | Butterfly valve convenient to seal and maintain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123341454.XU CN216975809U (en) | 2021-12-29 | 2021-12-29 | Butterfly valve convenient to seal and maintain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216975809U true CN216975809U (en) | 2022-07-15 |
Family
ID=82347553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123341454.XU Active CN216975809U (en) | 2021-12-29 | 2021-12-29 | Butterfly valve convenient to seal and maintain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216975809U (en) |
-
2021
- 2021-12-29 CN CN202123341454.XU patent/CN216975809U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Butterfly valve for easy sealing and maintenance Effective date of registration: 20230330 Granted publication date: 20220715 Pledgee: Bank of Nanjing Co.,Ltd. Taizhou Branch Pledgor: JIANGSU JIANGHUA VALVES CO.,LTD. Registration number: Y2023320000170 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |