CN203500512U - Airtight butterfly valve - Google Patents
Airtight butterfly valve Download PDFInfo
- Publication number
- CN203500512U CN203500512U CN201320648646.1U CN201320648646U CN203500512U CN 203500512 U CN203500512 U CN 203500512U CN 201320648646 U CN201320648646 U CN 201320648646U CN 203500512 U CN203500512 U CN 203500512U
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- valve
- oil cylinder
- valve body
- piston
- counterweight
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- Expired - Fee Related
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Abstract
The utility model relates to an airtight butterfly valve. The airtight butterfly valve comprises a valve body, a valve rod and a rear end cover installed on the valve body, and further comprises a counter weight which is installed on the rear end cover of the valve body. A hang ring is installed on the valve body. A counter weight wall is arranged at one end of the valve rod. A limiting piece is arranged on the right side of the counter weight wall. A double joint is hinged to the upper end of the counter weight wall. A piston is hinged to the upper end of the double joint through a drive pin. A spring is connected to the piston. The piston is installed in a cavity of an oil cylinder, an oil cylinder head is installed at the upper end of the oil cylinder, and the oil cylinder is installed on an oil cylinder support. The airtight butterfly valve further comprises a dished end which makes contact with the valve body through a seal ring and is carburized, and the dished end is installed on a dished end seat through a screw. The airtight butterfly valve has the advantages that the structure is simple, work performance is reliable, the effect of eliminating a water hammer is good, operation is convenient, the energy conservation effect is good, and sealing performance is reliable.
Description
Technical field
The utility model relates to valve field, relates in particular to a kind of airtight fly valve.
Background technique
Butterfly valve is the ideal equipment of the disconnected various gas of unidirectional joint, liquid medium pipeline; it is widely used in supplying water, draining waterpower facility system; in the pipe-line system of the industrial departments such as ventilation, metallurgy, chemical industry, electric power etc., prevent flowing medium adverse current, other equipment on protection pipeline.Fly valve inconvenient operation of the prior art, seal form adopts soft sealing structure more, and sealing material is rubber, teflon etc., due to the restriction of structure characteristic, is not suitable with high temperature resistant, high pressure and corrosion-resistant, the industry such as resistance to wear.
Model utility content
The utility model, in order to overcome deficiency of the prior art, provides a kind of airtight fly valve.
The utility model is to be achieved through the following technical solutions:
A kind of airtight fly valve, comprise valve body, valve rod, be arranged on the rear end cover on valve body, also comprise counterweight, described counterweight is arranged on valve rear end and covers, on described valve body, suspension ring are installed, one end of described valve rod is provided with counterweight wall, the right side of counterweight wall is provided with bounding means, the upper end of described counterweight wall is hinged with twin adapter, the upper end of described twin adapter is hinged with piston by driving pin, on described piston, be connected with spring, described piston is arranged in the cavity of oil cylinder, the upper end of described oil cylinder is provided with oil cylinder cover, oil cylinder is arranged on cylinder bracket, this fly valve also comprises dish plate that contact by seal ring with valve body and process Carburization Treatment, described dish plate is arranged on dish panel seat by screw.
This valve mechanism is that flange connects, and mainly by component structures such as valve body, butterfly plate, valve rod, balance weight mechanisms, is formed.When valve installation is on pipeline, when medium forward flow, butterfly plate is opened under the effect of pressure medium, and counterweight rises immediately; When medium counter flow, due to the effect of reverse media, make butterfly plate start automatically to close from fully open position.
Compared with prior art, the beneficial effects of the utility model are:
1, use oily control mechanism, novel and reasonable structure, reliable working performance, eliminates water hammer effective, and the know-why of quick closing valve, Slow Close being eliminated to water hammer is integrated, prevents the generation of turn on pump water hammer and pump-stopping water hammer.
2, easy to operate, only need operation pump motor to open and close knob, valve is realized and is automatically opened, closes according to water pump working specification.
3, adopt butterfly valve structure, reliably, valve body has adopted the design of full tunnel direct current type, the pressure loss is little, flow is large, and volume is little, lightweight for good energy-conserving effect, sealing, and installation, maintenance is convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view in Fig. 1.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1 and Fig. 2, Fig. 1 is structural representation of the present utility model, and Fig. 2 is the A-A sectional view in Fig. 1.
Described a kind of airtight fly valve, comprise valve body 8, valve rod 6, be arranged on the rear end cover 5 on valve body 8, also comprise counterweight 1, described counterweight 1 is arranged on valve rear end lid 5, on described valve body 8, suspension ring 7 are installed, one end of described valve rod 6 is provided with counterweight wall 16, the right side of counterweight wall 16 is provided with bounding means, the upper end of described counterweight wall 16 is hinged with twin adapter 15, the upper end of described twin adapter 15 is hinged with piston 11 by driving pin 14, on described piston 11, be connected with spring 9, described piston 11 is arranged in the cavity of oil cylinder 12, the upper end of described oil cylinder 12 is provided with oil cylinder cover 10, oil cylinder 12 is arranged on cylinder bracket 13, this fly valve also comprises the dish plate 4 of and process Carburization Treatment that contact by seal ring 2 with valve body 1, described dish plate 4 is arranged on dish panel seat 3 by screw.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (1)
1. an airtight fly valve, comprise valve body (8), valve rod (6), be arranged on the rear end cover (5) on valve body (8), it is characterized in that, also comprise counterweight (1), described counterweight (1) is arranged on valve rear end lid (5), suspension ring (7) are installed on described valve body (8), one end of described valve rod (6) is provided with counterweight wall (16), the right side of counterweight wall (16) is provided with bounding means, the upper end of described counterweight wall (16) is hinged with twin adapter (15), the upper end of described twin adapter (15) is hinged with piston (11) by driving pin (14), on described piston (11), be connected with spring (9), described piston (11) is arranged in the cavity of oil cylinder (12), the upper end of described oil cylinder (12) is provided with oil cylinder cover (10), oil cylinder (12) is arranged on cylinder bracket (13), this fly valve also comprises dish plate (4) that contact by seal ring (2) with valve body (1) and process Carburization Treatment, described dish plate (4) is arranged on dish panel seat (3) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320648646.1U CN203500512U (en) | 2013-10-21 | 2013-10-21 | Airtight butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320648646.1U CN203500512U (en) | 2013-10-21 | 2013-10-21 | Airtight butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500512U true CN203500512U (en) | 2014-03-26 |
Family
ID=50331492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320648646.1U Expired - Fee Related CN203500512U (en) | 2013-10-21 | 2013-10-21 | Airtight butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154096A (en) * | 2021-05-19 | 2021-07-23 | 博纳斯威阀门股份有限公司 | Method and closing device for closing check valve at zero flow rate |
-
2013
- 2013-10-21 CN CN201320648646.1U patent/CN203500512U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154096A (en) * | 2021-05-19 | 2021-07-23 | 博纳斯威阀门股份有限公司 | Method and closing device for closing check valve at zero flow rate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20141021 |
|
| EXPY | Termination of patent right or utility model |