CN216078343U - Bidirectional sealing butterfly valve - Google Patents
Bidirectional sealing butterfly valve Download PDFInfo
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- CN216078343U CN216078343U CN202122354056.5U CN202122354056U CN216078343U CN 216078343 U CN216078343 U CN 216078343U CN 202122354056 U CN202122354056 U CN 202122354056U CN 216078343 U CN216078343 U CN 216078343U
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Abstract
The utility model discloses a two-way sealing butterfly valve which comprises a valve body, an electric head, an end cover, a floating sealing ring and a valve rod, wherein the floating sealing ring is arranged in the valve body, the valve rod is rotatably arranged in the valve body, the valve body is provided with two water openings, each water opening is connected with an external pipeline through a valve body joint, the electric head is detachably arranged at the top of the valve body through a support and is connected with the valve rod and can drive the valve rod to rotate in the valve body, the end cover is detachably arranged at the bottom of the valve body through a split ring, a butterfly plate is arranged on the valve rod and can open or close the valve body, and an O-shaped sealing ring is arranged on the butterfly plate.
Description
Technical Field
The utility model relates to the technical field of butterfly valves, in particular to a bidirectional sealing butterfly valve.
Background
The existing butterfly valve is mainly equipment for controlling the flow of various types of fluids through a butterfly plate, and the flow of the butterfly plate is conveniently cut off and throttled, so that the purpose of opening and closing is achieved. However, most of the existing butterfly valves are one-way sealing, and when the liquid medium flows reversely, the butterfly plate cannot completely block the backflow of the liquid medium. Therefore, for a bidirectional sealing butterfly valve, the existing butterfly valve is mostly in one-way sealing, and when a liquid medium flows reversely, the butterfly plate cannot completely block the backflow of the liquid medium.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model aims to provide a bidirectional sealing butterfly valve which is simple in structure, capable of performing bidirectional sealing and good in sealing performance.
In order to achieve the above purposes, the utility model adopts the technical scheme that: the utility model provides a two-way seal butterfly valve, which comprises a valve body, electronic head, the end cover, the floating seal circle of setting in the valve body and rotate the valve rod of setting in the valve body, the valve body has two mouths of a river and every mouth of a river all to be connected with external pipe through the valve body joint, electronic head passes through the support dismantlement and sets up and be connected and can drive the valve rod at valve body top and electronic head and valve rod internal rotation, the end cover is through opening the ring dismantlement setting in the valve body bottom, be provided with butterfly plate and butterfly plate on the valve rod and can open the valve body or be closed, be provided with o type sealing washer on the butterfly plate.
The bidirectional sealing butterfly valve has the beneficial effect that the valve body is connected with an external pipeline through the valve body joint. When the butterfly valve is used, the electric head is opened, the valve rod can be driven to rotate clockwise (or anticlockwise), and then the butterfly plate is driven to rotate. The butterfly plate is opened when the butterfly plate rotates anticlockwise, and the liquid medium circulates forwards and sequentially passes through the water gap, the valve body and the water gap; clockwise, the butterfly plate is closed, and o type sealing washer laminates mutually with the floating seal circle (o type sealing washer top tight floating seal circle, and o type sealing washer, floating seal circle are flexible material), plays sealed effect. The butterfly plate is opened when the butterfly plate rotates anticlockwise, and the liquid medium reversely passes through the water gap, the valve body and the water gap in sequence; clockwise rotation, the butterfly plate is closed, and the o type sealing washer can laminate mutually with the floating seal circle once more. No matter the liquid medium is circulated in the positive direction or the reverse direction, when the butterfly plate is subjected to an acting force opposite to the moving direction of the liquid medium, the o-shaped sealing ring is tightly attached to the floating sealing ring, so that the reverse direction sealing effect is achieved. The butterfly valve with the structure has the advantages of simple structure, capability of performing bidirectional sealing and good sealing property.
The improved valve body further comprises a packing assembly, the packing assembly comprises a packing pressing plate and a packing pressing sleeve, the packing pressing plate is locked at the top of the valve body through a fourth nut assembly and is located below the support, the top of the valve body is further provided with a packing box, packing is filled in the packing box, and the packing pressing sleeve is arranged between the packing pressing plate and the packing. Leakage of the liquid medium from the valve stem is avoided. The fillers are two types, and can be flexible graphite fillers and woven graphite fillers.
As a further improvement of the utility model, the bracket is locked on the top of the valve body through a first nut component, the power head is locked on the bracket through a second nut component, and the top of the valve rod passes through the bracket and is connected with the power head. The support is realized dismantling the setting on the valve body through first nut group, and the setting can be dismantled on the support, makes things convenient for later stage maintenance etc. in the realization of electronic head through second nut component.
The utility model is further improved in that the split ring is arranged at the bottom of the valve body, the end cover and the split ring are locked at the bottom of the valve body through the third nut assembly, the bottom of the valve body is also provided with a shaft sleeve, the bottom of the valve rod is positioned in the shaft sleeve and can rotate, and the top of the valve rod is connected with the electric head. The split ring is arranged at the bottom of the valve body, and the end cover is detached and arranged at the bottom of the valve body through the third nut component, so that later maintenance is facilitated. Wherein the nut assembly is prior art and will not be described in greater detail herein.
As a further improvement of the utility model, a sealing gasket is arranged between the split ring and the end cover. The liquid medium is prevented from leaking from the end cap.
The utility model is further improved in that a first flange is arranged at each water opening and on the external pipeline, second flanges are arranged at two ends of each valve body joint, and each first flange and each second flange are locked through a fifth nut component. The valve body is convenient to be connected to an external pipeline.
As a further improvement of the utility model, a movable grip is also arranged outside the valve body. The movable handle is convenient for the whole butterfly valve to move.
Drawings
FIG. 1 is a sectional view of the present embodiment;
FIG. 2 is an enlarged view of the butterfly plate of the present embodiment;
FIG. 3 is an enlarged view of the gasket seal of this embodiment.
In the figure:
1-a valve body; 2-a power head; 3-end cover; 4-floating sealing ring; 5-valve stem; 6-a scaffold; 7-split ring opening; 8-a butterfly plate; a 9-o-shaped seal ring; 10-a packing press plate; 11-packing and pressing; 12-a shaft sleeve; 13-a sealing gasket; 14-a filler.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Referring to the attached drawings 1-3, the two-way sealing butterfly valve of the embodiment includes a valve body 1, a power head 2, an end cover 3, a floating seal ring 4 arranged in the valve body 1, and a valve rod 5 rotatably arranged in the valve body 1, wherein the valve body 1 has two water gaps, each water gap is connected with an external pipeline through a valve body joint, the power head 2 is detachably arranged at the top of the valve body 1 through a support 6, the power head 2 is connected with the valve rod 5 and can drive the valve rod 5 to rotate in the valve body 1, the end cover 3 is detachably arranged at the bottom of the valve body 1 through a split ring 7, a butterfly plate 8 is arranged on the valve rod 5, the butterfly plate 8 can open or close the valve body 1, and an o-shaped seal ring 9 is arranged on the butterfly plate 8. The valve body 1 is connected with an external pipeline through a valve body joint. When the butterfly valve is used, the electric head 2 is opened to drive the valve rod 5 to rotate clockwise (or anticlockwise) so as to drive the butterfly plate 8 to rotate. The butterfly plate 8 is opened when the butterfly plate rotates anticlockwise, and the liquid medium circulates forwards and sequentially passes through the water gap, the valve body and the water gap; clockwise turning, butterfly plate 8 is closed, and o type sealing washer is laminated with floating seal circle 3 mutually (o type sealing washer top floating seal circle 3, o type sealing washer, floating seal circle 3 are flexible material), plays sealed effect. The butterfly plate 8 is opened when the butterfly plate rotates anticlockwise, and the liquid medium reversely flows and sequentially passes through the water gap, the valve body and the water gap; clockwise turning, butterfly plate 8 is closed, and the o type sealing washer can laminate mutually with floating seal ring 3 once more. No matter the liquid medium circulates in the positive direction or in the reverse direction, when the butterfly plate 8 is subjected to an acting force opposite to the moving direction of the liquid medium, the o-shaped sealing ring is further tightly attached to the floating sealing ring 3, and therefore the reverse direction sealing effect is achieved. The butterfly valve with the structure has the advantages of simple structure, capability of performing bidirectional sealing and good sealing property.
The embodiment further comprises a packing assembly, the packing assembly comprises a packing pressing plate 10 and a packing pressing sleeve 11, the packing pressing plate 10 is locked at the top of the valve body 1 through a fourth nut assembly and located below the support 6, the top of the valve body 1 is further provided with a packing box, the packing box is filled with packing 14, and the packing pressing sleeve 11 is arranged between the packing pressing plate 10 and the packing 14. Leakage of liquid medium from the valve stem 5 is avoided. The filler 14 is of two types, and can be a flexible graphite filler and a woven graphite filler.
The bracket 6 of the embodiment is locked on the top of the valve body 1 through a first nut component, the power head 2 is locked on the bracket 6 through a second nut component, and the top of the valve rod 5 penetrates through the bracket 6 to be connected with the power head 2. Support 6 realizes dismantling the setting on valve body 1 through first nut group, and electric head 2 realizes dismantling the setting on support 6 through second nut component, makes things convenient for later stage maintenance etc..
The split ring 7 of this embodiment sets up in 1 bottom of valve body and end cover 3 passes through the third nut component and locks in 1 bottom of valve body with split ring 7, and 1 bottom of valve body still is provided with axle sleeve 12, and the bottom of valve rod 5 is located axle sleeve 12 and can rotate, and the top of valve rod 5 is connected with electronic head 2. The split ring 7 is arranged at the bottom of the valve body 1, and the end cover 3 is detached and arranged at the bottom of the valve body 1 through the third nut component, so that later maintenance is facilitated. Wherein the nut assembly is prior art and will not be described in greater detail herein.
A sealing gasket 13 is arranged between the split ring 7 and the end cap 3 of this embodiment. Leakage of the liquid medium from the end cap 3 is avoided.
Every water gap department, the outer pipeline of this embodiment all are provided with first ring flange, the both ends second ring flange of every valve body joint, and every first ring flange all locks mutually through fifth nut component with the second ring flange. The valve body 1 is conveniently connected to an external pipeline.
The valve body 1 of the present embodiment is also provided with a movable grip on the outside. The movable handle is convenient for the whole butterfly valve to move.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a two-way seal butterfly valve which characterized in that: including valve body (1), electronic head (2), end cover (3), floating seal circle (4) and the rotation setting valve rod (5) in valve body (1) of setting in valve body (1), valve body (1) have two mouths of a river and every mouth of a river all connect with external pipeline through the valve body, electronic head (2) are dismantled through support (6) and are set up and be connected and can drive valve rod (5) at valve body (1) top and electronic head (2) and valve rod (5) internal rotation, end cover (3) are dismantled through opening ring (7) and are set up in valve body (1) bottom, be provided with butterfly plate (8) and butterfly plate (8) on valve rod (5) and can open or be closed valve body (1), be provided with o type sealing washer (9) on butterfly plate (8).
2. The bidirectional sealing butterfly valve of claim 1, wherein: the packing device is characterized by further comprising a packing assembly, the packing assembly comprises a packing pressing plate (10) and a packing pressing sleeve (11), the packing pressing plate (10) is locked at the top of the valve body (1) through a fourth nut assembly and located below the support (6), a packing box is further arranged at the top of the valve body (1), packing (14) is filled in the packing box, and the packing pressing sleeve (11) is arranged between the packing pressing plate (10) and the packing (14).
3. The bidirectional sealing butterfly valve of claim 1, wherein: support (6) are locked at valve body (1) top through first nut component, electronic head (2) are passed support (6) and are connected with electronic head (2) through second nut component locking on support (6) and the top of valve rod (5).
4. The bidirectional sealing butterfly valve of claim 1, wherein: run from opposite directions ring (7) and set up in valve body (1) bottom and end cover (3) through third nut component with run from opposite directions ring (7) and lock in valve body (1) bottom, valve body (1) bottom still is provided with axle sleeve (12), the bottom of valve rod (5) is located axle sleeve (12) and can rotate, the top and the electronic head (2) of valve rod (5) are connected.
5. The bidirectional sealing butterfly valve of claim 4, wherein: a sealing gasket (13) is arranged between the split ring (7) and the end cover (3).
6. The bidirectional sealing butterfly valve of claim 1, wherein: every all be provided with first ring flange on water outlet department, the outside pipeline, every the both ends that the valve body connects all are provided with the second ring flange, every first ring flange all locks mutually through fifth nut component with the second ring flange.
7. The bidirectional sealing butterfly valve of claim 1, wherein: the outside of the valve body (1) is also provided with a movable grip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122354056.5U CN216078343U (en) | 2021-09-27 | 2021-09-27 | Bidirectional sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122354056.5U CN216078343U (en) | 2021-09-27 | 2021-09-27 | Bidirectional sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216078343U true CN216078343U (en) | 2022-03-18 |
Family
ID=80636330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122354056.5U Active CN216078343U (en) | 2021-09-27 | 2021-09-27 | Bidirectional sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216078343U (en) |
-
2021
- 2021-09-27 CN CN202122354056.5U patent/CN216078343U/en active Active
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