CN202659922U - High-strength butterfly valve - Google Patents
High-strength butterfly valve Download PDFInfo
- Publication number
- CN202659922U CN202659922U CN 201220149255 CN201220149255U CN202659922U CN 202659922 U CN202659922 U CN 202659922U CN 201220149255 CN201220149255 CN 201220149255 CN 201220149255 U CN201220149255 U CN 201220149255U CN 202659922 U CN202659922 U CN 202659922U
- Authority
- CN
- China
- Prior art keywords
- valve
- plate
- valve rod
- bonnet
- rod
- 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
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Abstract
The utility model discloses a high-strength butterfly valve which comprises a valve body connected to a rear cover (1) via an inner hexagon screw (3), wherein a sealing gasket (2) is arranged between the rear cover (1) and the valve body; a valve rod (4) connected with the rear cover (1) is arranged in the valve body; a valve plate (5) is connected to the valve rod (4); a slide bearing (9) is connected between the valve rod (4) and the valve body; the valve rod (4) is connected with the rear cover (1) via a thrust bearing device; the valve plate (5) is connected to the valve rod (4) via a location pin (8); a press plate (6) is connected to the valve plate (5) via a screw; and a sealing ring (7) is connected between the press plate (6) and the valve plate (5). The high-strength butterfly valve disclosed by the utility model has the beneficial effects of being prolonged in service life, and high in the strength of the valve plate, thus being more reliable.
Description
Technical field
The utility model relates to for a kind of valve on the pipeline of the various corrosivity of engineering system conveying such as producer, coal gas, rock gas, liquefied petroleum gas (LPG), town gas, cold and hot air, chemical industry smelting and generation environment-friendly, non-corrosive fluids medium, particularly a kind of high strength butterfly valve.
Background technique
Present stage, butterfly valve is widely used in carrying in the pipeline of various corrosivity, non-corrosive fluids medium in the engineering systems such as producer, coal gas, rock gas, liquefied petroleum gas (LPG), town gas, cold and hot air, chemical industry smelting and generation environment-friendly, its working principle is: the dish plate is driven by valve rod, if turn over 90 °, just can finish once and open and close, if change the deflection angle of dish plate, get final product the flow of control media.
The key that affects the quality of butterfly valve is sealing system and valve plate intensity.Present butterfly valve seal circle adopts the rubber elasticity seal ring mostly, yet rubber elastomer in using continuously, can produce tear, wear and tear, wear out, perforation even obscission, affect sealing effect, often need to change the seal ring of butterfly valve, the waste of manpower financial resource and material resource; And the valve plate form fixed single of existing butterfly valve, can't change at any time the intensity of valve plate.
The model utility content
For the defective of seal arrangement and valve plate in the existing butterfly valve, the utility model provides a kind of high strength butterfly valve.
To achieve these goals, the utility model institute Adopts measure is:
A kind of high strength butterfly valve, comprise by socket head screw and be connected to valve body on the bonnet, be provided with gasket seal between bonnet and the valve body, be provided with the valve rod that links to each other with bonnet in the valve body, be connected with valve plate on the valve rod, be connected with sliding bearing between valve rod and the valve body, valve rod links to each other with bonnet by thrust bearing device, valve plate is connected on the valve rod by locating stud, is connected with pressing plate by screw on the valve plate, is connected with seal ring between pressing plate and the valve plate;
Described thrust bearing device comprises the thrust plate that is connected between bonnet and the valve rod, is provided with a deciliter baffle ring between thrust plate and the valve rod, is provided with thrust bearing between thrust plate and the bonnet;
Described seal ring is elastic metal sealing ring.
The beneficial effects of the utility model: high circulation thrust bearing device firmly is pressed in a high hardness thrust plate on the axle, forms a middle part sliding shim, has prolonged the working life of butterfly valve; Gentle dynamic elasticity metal o-ring is positioned on the valve plate, just compress and for locking in position, thereby metal o-ring has certain gentle moving degrees of freedom, seal ring is by the locating stud location, and bolt increases on the valve plate, the pressing plate thickening, so that the valve plate strength increase, butterfly valve is more reliable.
Description of drawings
Fig. 1, structural representation of the present utility model;
The connection diagram of valve plate and pressing plate in Fig. 2, the utility model.
Embodiment
A kind of high strength butterfly valve, comprise by socket head screw 3 and be connected to valve body on the bonnet 1, be provided with gasket seal 2 between bonnet 1 and the valve body, be provided with the valve rod 4 that links to each other with bonnet 1 in the valve body, be connected with valve plate 5 on the valve rod 4, be connected with sliding bearing 9 between valve rod 4 and the valve body, valve rod 4 links to each other with bonnet 1 by thrust bearing device, valve plate 5 is connected on the valve rod 4 by locating stud 8, is connected with pressing plate 6 by screw on the valve plate 5, is connected with seal ring 7 between pressing plate 6 and the valve plate 5; Described thrust bearing device comprises the thrust plate that is connected between bonnet 1 and the valve rod 4, is provided with deciliter baffle ring 10 between thrust plate and the valve rod 4, is provided with thrust bearing 11 between thrust plate and the bonnet 1; Described seal ring 7 is elastic metal sealing ring.
The beneficial effects of the utility model: high circulation thrust bearing device firmly is pressed in a high hardness thrust plate on the axle, forms a middle part sliding shim, has prolonged the working life of butterfly valve; Gentle dynamic elasticity metal o-ring is positioned on the valve plate, just compress and for locking in position, thereby metal o-ring has certain gentle moving degrees of freedom, seal ring is by the locating stud location, and bolt increases on the valve plate, the pressing plate thickening, so that the valve plate strength increase, butterfly valve is more reliable.
Those skilled in the art's simple change and replacement all are within the protection domain of the present utility model in related domain.
Claims (3)
1. high strength butterfly valve, comprise by socket head screw (3) and be connected to valve body on the bonnet (1), be provided with gasket seal (2) between bonnet (1) and the valve body, be provided with the valve rod (4) that links to each other with bonnet (1) in the valve body, be connected with valve plate (5) on the valve rod (4), it is characterized in that, be connected with sliding bearing (9) between valve rod (4) and the valve body, valve rod (4) links to each other with bonnet (1) by thrust bearing device, valve plate (5) is connected on the valve rod (4) by locating stud (8), valve plate (5) is upper to be connected with pressing plate (6) by screw, is connected with seal ring (7) between pressing plate (6) and the valve plate (5).
2. a kind of high strength butterfly valve according to claim 1, it is characterized in that, described thrust bearing device comprises the thrust plate that is connected between bonnet (1) and the valve rod (4), be provided with a deciliter baffle ring (10) between thrust plate and the valve rod (4), be provided with thrust bearing (11) between thrust plate and the bonnet (1).
3. a kind of high strength butterfly valve according to claim 1 is characterized in that, described seal ring (7) is elastic metal sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149255 CN202659922U (en) | 2012-04-10 | 2012-04-10 | High-strength butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149255 CN202659922U (en) | 2012-04-10 | 2012-04-10 | High-strength butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659922U true CN202659922U (en) | 2013-01-09 |
Family
ID=47454831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220149255 Expired - Fee Related CN202659922U (en) | 2012-04-10 | 2012-04-10 | High-strength butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659922U (en) |
-
2012
- 2012-04-10 CN CN 201220149255 patent/CN202659922U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20130410 |