CN209990922U - Multi-stage sealing butterfly valve - Google Patents
Multi-stage sealing butterfly valve Download PDFInfo
- Publication number
- CN209990922U CN209990922U CN201920291893.8U CN201920291893U CN209990922U CN 209990922 U CN209990922 U CN 209990922U CN 201920291893 U CN201920291893 U CN 201920291893U CN 209990922 U CN209990922 U CN 209990922U
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- valve
- butterfly
- valve rod
- gear
- valve body
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- Expired - Fee Related
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Abstract
The utility model provides a multi-stage sealing butterfly valve, which comprises a valve body, two butterfly plates, a switch mechanism, a first valve rod, a second valve rod and a third valve rod; the middle part of the valve body is a through hole cavity which penetrates through the valve body; the upper part of the valve body is a hollow control cavity; the control cavity is communicated with the through hole cavity; the two butterfly plates are arranged in the through hole cavity, and the switch mechanism is fixed with the outer surface of the control cavity; one end of the first valve rod is connected with the switch mechanism; the other end of the first valve rod is provided with a first gear; one end of the second valve rod is connected with the butterfly plate; the other end of the second valve rod is provided with a second gear meshed with the first gear; one end of the third valve rod is connected with the other butterfly plate; the other end of the third valve rod is provided with a third gear meshed with the first gear, so that a multi-stage sealing butterfly valve with better sealing effect and double butterfly plate sealing is provided.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a multistage sealed butterfly valve.
Background
A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (a valve clack or a butterfly plate) which is a disc and rotates around a valve shaft to open and close, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The butterfly valve mainly plays a role in cutting off and throttling on a pipeline and belongs to one of valves for controlling medium flowing in the pipeline, and the butterfly valve mainly achieves the purpose of opening and closing or adjusting by rotating a disc-shaped disc plate around the axis of the disc-shaped disc plate in a valve body.
However, in the case of long-term use, the butterfly valve is opened and closed frequently, which inevitably results in poor sealing effect between the butterfly plate and the valve body, leakage and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sealed effect preferred to have the sealed multistage sealed butterfly valve of two butterfly plates.
In order to achieve the purpose, the utility model provides a multi-stage sealing butterfly valve, which comprises a valve body, two butterfly plates, a switch mechanism, a first valve rod, a second valve rod and a third valve rod; the middle part of the valve body is a through hole cavity which penetrates through the valve body; the upper part of the valve body is a hollow control cavity; the control cavity is communicated with the through hole cavity; the two butterfly plates are arranged in the through hole cavity, and the switch mechanism is fixed with the outer surface of the control cavity; one end of the first valve rod is connected with the switch mechanism; the other end of the first valve rod is provided with a first gear; one end of the second valve rod is connected with the butterfly plate; the other end of the second valve rod is provided with a second gear meshed with the first gear; one end of the third valve rod is connected with the other butterfly plate; and a third gear meshed with the first gear is arranged at the other end of the third valve rod.
Preferably, the switch mechanism is a rotating handle.
Preferably, the through hole cavity is provided with an embedding groove around one circle of the butterfly plate; a rubber sealing ring is preset in the embedding groove; ceramic layers are arranged on two sides of the rubber sealing ring; when the butterfly valve is closed, the butterfly valve is respectively abutted with the rubber sealing ring and the ceramic layer.
Preferably, a water level monitor is arranged between the two butterfly plates and is in signal connection with external communication equipment.
Preferably, the bottom end of the valve body is provided with a water discharge hole, the water discharge hole is arranged between the positions of the two butterfly plates, and a leakage-proof plug is plugged in the water discharge hole.
Preferably, waterproof sealing rings are embedded between the second valve rod and the side wall of the hollow barrel in the valve body and between the third valve rod and the side wall of the hollow barrel in the valve body.
Compared with the prior art, the utility model has the advantages that: the utility model discloses a multistage sealed butterfly valve includes two parallel arrangement's valve plate, operating personnel rotates the croton through the rotating and drives first valve rod rotation, first valve rod passes through first gear and takes rather than engaged with second gear and third gear, thereby it rotates together to drive second valve rod and third valve rod, finally drive the butterfly plate and realize opening and shutting, the setting of two butterfly plates carries out double-deck assurance to sealed effect, under the condition that leakage appears in having a valve, another valve also can in time keep off the work of protecting, avoid the valve inefficacy.
Set up the water level monitor between two valves, after the valve is closed, can open the leak protection stopper, put the water between two butterfly plates, close the period through water level monitor real-time detection at the valve, whether have water infiltration between two butterfly plates, if have water infiltration, can in time arrange the investigation, detect which one butterfly plate takes place to leak to in time maintain, and another butterfly plate also can and time play the effect of keeping off the protection.
Drawings
Fig. 1 is a schematic view of an overall structure of a multi-stage sealing butterfly valve according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be further described below.
As shown in fig. 1, the utility model provides a multi-stage sealing butterfly valve, which comprises a valve body 1, two butterfly plates 2, a switch mechanism 3, a first valve rod 4, a second valve rod 5 and a third valve rod 6; the middle part of the valve body 1 is a through hole cavity which penetrates through; the upper part of the valve body 1 is a hollow control cavity; the control cavity is communicated with the through hole cavity; the two butterfly plates 2 are arranged in the through hole cavity, and the switch mechanism 3 is fixed with the outer surface of the control cavity; one end of the first valve rod 4 is connected with the switch mechanism 3; the other end of the first valve rod 4 is provided with a first gear 7; one end of the second valve rod 5 is connected with the butterfly plate 2; the other end of the second valve rod 5 is provided with a second gear 8 meshed with the first gear 7; one end of the third valve rod 6 is connected with the other butterfly plate 2; the other end of the third valve rod 6 is provided with a third gear 9 which is meshed with the first gear 7.
In this embodiment, the utility model discloses a multistage sealed butterfly valve includes two parallel arrangement's valve plate, operating personnel rotates the croton through the rotating and drives first valve rod 4 and rotate, first valve rod 4 is taken to rather than engaged with second gear 8 and third gear 9 through first gear 7, thereby it rotates together to drive second valve rod 5 and third valve rod 6, finally drive 2 realization of butterfly plates and open and shut, the setting of two butterfly plates 2, carry out double-deck assurance to sealed effect, under the condition that leakage appears in even having a valve, another valve also can in time keep off the work of protecting, avoid the valve inefficacy.
In the present embodiment, the switch mechanism 3 is a turning handle.
In the embodiment, the through hole cavity is provided with a tabling groove around one circle of the butterfly plate 2; a rubber sealing ring is preset in the embedding groove; ceramic layers are arranged on two sides of the rubber sealing ring; when the butterfly valve is closed, the butterfly valve is respectively abutted with the rubber sealing ring and the ceramic layer, the ceramic layer is wear-resistant, and the two rubber sealing rings can play a good role in sealing protection.
In this embodiment, a water level monitor 10 is disposed between the two butterfly plates 2, and the water level monitor 10 is in signal connection with an external communication device.
In this embodiment, the bottom end of the valve body 1 is provided with a water discharge hole, the water discharge hole is arranged between the positions of the two butterfly plates 2, and the water discharge hole is plugged with a leakproof plug 11.
In this embodiment, set up water level monitor 10 between two valves, after the valve is closed, can open leak protection stopper 11 son, put the water between two butterfly plates 2, close the period through water level monitor 10 real-time detection at the valve, whether have water infiltration between two butterfly plates 2, if there is water infiltration, can in time investigate, detect which butterfly plate 2 takes place to leak, thereby in time maintain, and another butterfly plate 2 also can play the effect of keeping off the protection in time.
In the embodiment, waterproof sealing rings are embedded between the second valve rod 5 and the third valve rod 6 and the side wall of the hollow barrel in the valve body 1.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (6)
1. A multi-stage sealing butterfly valve is characterized by comprising a valve body, two butterfly plates, a switching mechanism, a first valve rod, a second valve rod and a third valve rod; the middle part of the valve body is a through hole cavity which penetrates through the valve body; the upper part of the valve body is a hollow control cavity; the control cavity is communicated with the through hole cavity; the two butterfly plates are arranged in the through hole cavity, and the switch mechanism is fixed with the outer surface of the control cavity; one end of the first valve rod is connected with the switch mechanism; the other end of the first valve rod is provided with a first gear; one end of the second valve rod is connected with the butterfly plate; the other end of the second valve rod is provided with a second gear meshed with the first gear; one end of the third valve rod is connected with the other butterfly plate; and a third gear meshed with the first gear is arranged at the other end of the third valve rod.
2. The multi-stage sealing butterfly valve of claim 1, wherein the switching mechanism is a rotating handle.
3. The multi-seal butterfly valve of claim 1, wherein the through-hole cavity is provided with an engagement groove around a circle of the butterfly plate; a rubber sealing ring is preset in the embedding groove; ceramic layers are arranged on two sides of the rubber sealing ring; when the butterfly valve is closed, the butterfly valve is respectively abutted with the rubber sealing ring and the ceramic layer.
4. The multi-stage sealing butterfly valve according to claim 1, wherein a water level monitor is arranged between the two butterfly plates, and the water level monitor is in signal connection with an external communication device.
5. The multi-stage sealing butterfly valve according to claim 4, wherein a water discharge hole is formed at the bottom end of the valve body, the water discharge hole is formed between the positions of the two butterfly plates, and a leakage-proof plug is plugged in the water discharge hole.
6. The multi-stage sealing butterfly valve of claim 1, wherein a waterproof seal is embedded between the second and third valve stems and a side wall of the hollow barrel in the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920291893.8U CN209990922U (en) | 2019-03-07 | 2019-03-07 | Multi-stage sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920291893.8U CN209990922U (en) | 2019-03-07 | 2019-03-07 | Multi-stage sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209990922U true CN209990922U (en) | 2020-01-24 |
Family
ID=69289036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920291893.8U Expired - Fee Related CN209990922U (en) | 2019-03-07 | 2019-03-07 | Multi-stage sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209990922U (en) |
-
2019
- 2019-03-07 CN CN201920291893.8U patent/CN209990922U/en not_active Expired - Fee Related
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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: 20200124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |