CN213088789U - Gas baffle valve with universal joint seal - Google Patents
Gas baffle valve with universal joint seal Download PDFInfo
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- CN213088789U CN213088789U CN202021140110.5U CN202021140110U CN213088789U CN 213088789 U CN213088789 U CN 213088789U CN 202021140110 U CN202021140110 U CN 202021140110U CN 213088789 U CN213088789 U CN 213088789U
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Abstract
A gas baffle valve with a universal joint seal comprises a valve body, a top cover plate, an operating mechanism, a valve rod and a valve plate, wherein the valve body is fixedly connected with the top cover plate; the operating mechanism is located on the top cover plate, the action end of the operating mechanism is connected with one end of the valve rod, the valve rod extends into the valve body, the valve plate is matched with the gas outlet of the valve body, the other end of the valve rod is connected with the middle of the valve plate through a universal joint, and a sealing surface is arranged between the valve plate and the inner wall of the valve body on the periphery of the gas outlet. The utility model provides a take the sealed gas flapper valve of universal joint that operational reliability is better, the leakproofness is better.
Description
Technical Field
The utility model belongs to gas delivery valve field relates to a gas baffle valve.
Background
In the industrial ventilation and waste gas treatment process, gas is required to be conveyed through the air pipe, and the general gate valve, ball valve, butterfly valve and the like cannot excessively design a gas conveying channel due to the limitation of working principles and complex structures and high cost. For large-air-volume gas conveying, a gas baffle valve is often adopted, but a valve rod is easy to deviate after the baffle valve acts for a long time, so that a valve plate of the valve cannot be kept horizontal all the time, the problem of tightness occurs, and relatively effective solution cannot be achieved.
In view of the defects of the prior art, a baffle valve with reliable operation and good sealing performance for conveying large-air-volume gas in the industrial ventilation and waste gas treatment process needs to be designed.
Disclosure of Invention
In order to overcome the defects of poor operational reliability and poor sealing performance of the existing gas baffle valve, the utility model provides a gas baffle valve with universal joint sealing, which has good operational reliability and good sealing performance.
The utility model provides a technical scheme that its technical problem adopted is:
a gas baffle valve with a universal joint seal comprises a valve body, a top cover plate, an operating mechanism, a valve rod and a valve plate, wherein the valve body is fixedly connected with the top cover plate; the operating mechanism is located on the top cover plate, the action end of the operating mechanism is connected with one end of the valve rod, the valve rod extends into the valve body, the valve plate is matched with the gas outlet of the valve body, the other end of the valve rod is connected with the middle of the valve plate through a universal joint, and a sealing surface is arranged between the valve plate and the inner wall of the valve body on the periphery of the gas outlet.
Furthermore, the universal joint is provided with a reinforcing plate at the periphery to prevent falling off after long-time action.
Still further, the sealing surface is a polytetrafluoroethylene sealing surface.
Furthermore, the valve body is provided with an inlet flange and an outlet flange, the inlet flange is a gas inlet, and the outlet flange is a gas outlet.
The valve body is connected with the top cover plate through bolts and nuts.
The operating mechanism is an air cylinder driving mechanism, a motor driving mechanism or a hydraulic cylinder driving mechanism.
The beneficial effects of the utility model are that: the utility model provides a valve plate and valve rod connected mode with universal joint to guarantee after the long-time action of flapper valve, even the valve rod has the skew of certain degree, when the valve body sealing surface is pressed close to the valve rod downward action valve plate, through the self-interacting effect of universal joint, can guarantee that the valve plate is the horizontality, the force of valve plate effect on the sealing surface of valve body is all even, can laminate sealed face completely, effectively overcome the problem of current valve body leakproofness.
Drawings
FIG. 1 is a vertical cross-sectional view of a gas flapper valve with a universal joint seal of the present invention;
FIG. 2 is a top view of a gas flapper valve with a universal joint seal of the present invention;
in the figure, 1-inlet flange, 2-top cover plate, 3-operating mechanism, 4-valve body, 5-valve rod, 6-universal joint, 7-reinforcing plate, 8-valve plate, 9-sealing surface (polytetrafluoroethylene) and 10-outlet flange.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, a gas flapper valve with a universal joint seal includes a valve body 4, a top cover plate 2, an operating mechanism 3, a valve rod 5, a universal joint 6, and a valve plate 8; the valve body 4 is connected with the top cover plate 2 through bolts and nuts; the inlet flange 1 is a gas inlet, and the outlet flange 10 is a gas outlet; the valve rod 5 is connected with the valve plate 8 through a universal joint 6, and a reinforcing plate 7 is arranged on the periphery of the universal joint; and a polytetrafluoroethylene sealing surface 9 is adopted between the valve plate 8 and the valve body 4.
For guaranteeing the utility model discloses can realize the automation, foretell lamina tecti operating device 3 is cylinder actuating mechanism or motor drive mechanism or pneumatic cylinder actuating mechanism.
The utility model discloses the theory of operation: as shown in fig. 1, when the valve plate 8 is driven by the valve operating mechanism 3 to move downwards and is close to the sealing surface 9 of the valve body 4, the valve plate 8 is kept horizontal by the self-adjusting function of the universal joint 6, completely fits the sealing surface 9, and blocks a gas inlet/outlet channel, so that the effect of closing the valve is achieved; when the valve plate 8 leaves the sealing surface 9 of the valve body 4, the inlet and outlet channels of the valve are opened, so that the effect of opening the valve is achieved.
The embodiments of the present invention have been described in detail with reference to the drawings, and all modifications, substitutions, variations, etc. within the spirit and principle of the present invention are still within the scope of the present invention.
Claims (6)
1. A gas baffle valve with a universal joint seal comprises a valve body, a top cover plate, an operating mechanism, a valve rod and a valve plate, wherein the valve body is fixedly connected with the top cover plate; the valve is characterized in that the other end of the valve rod is connected with the middle of the valve plate through a universal joint, and a sealing surface is arranged between the valve plate and the inner wall of the valve body at the periphery of the gas outlet.
2. A gas flapper valve with a universal joint seal as claimed in claim 1 wherein said universal joint is peripherally provided with stiffening plates.
3. A gas flapper valve with a universal joint seal as claimed in claim 1 or 2 wherein said seal surface is a teflon seal surface.
4. The gas flapper valve with a universal joint seal of claim 1 or 2 wherein said valve body is provided with an inlet flange and an outlet flange, said inlet flange being a gas inlet port and said outlet flange being a gas outlet port.
5. A gas flapper valve with a universal joint seal as claimed in claim 1 or 2 wherein said valve body and said top cover plate are connected by bolts and nuts.
6. A gas flapper valve with a universal joint seal as claimed in claim 1 or 2 wherein said operating mechanism is a cylinder drive mechanism, a motor drive mechanism or a hydraulic cylinder drive mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021140110.5U CN213088789U (en) | 2020-06-18 | 2020-06-18 | Gas baffle valve with universal joint seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021140110.5U CN213088789U (en) | 2020-06-18 | 2020-06-18 | Gas baffle valve with universal joint seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213088789U true CN213088789U (en) | 2021-04-30 |
Family
ID=75621138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021140110.5U Active CN213088789U (en) | 2020-06-18 | 2020-06-18 | Gas baffle valve with universal joint seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213088789U (en) |
-
2020
- 2020-06-18 CN CN202021140110.5U patent/CN213088789U/en active Active
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