CN204083273U - A kind of modified node method of butterfly valve - Google Patents
A kind of modified node method of butterfly valve Download PDFInfo
- Publication number
- CN204083273U CN204083273U CN201420431825.4U CN201420431825U CN204083273U CN 204083273 U CN204083273 U CN 204083273U CN 201420431825 U CN201420431825 U CN 201420431825U CN 204083273 U CN204083273 U CN 204083273U
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- valve body
- shaped elastic
- elastic ring
- butterfly
- inserts
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Abstract
The utility model relates to a kind of modified node method of butterfly valve, comprise valve body, valve rod and butterfly plate, the side of valve body is fixedly connected with inserts, inserts sealing fits in valve body and pressure holding has seal ring, loose slot is provided with between inserts and valve body, in loose slot, slip pressure holding has U-shaped elastic ring, and the edge of butterfly plate has inclined-plane, and inclined-plane and U-shaped elastic ring are tightly connected; Stuffing box comprises the V-arrangement filler of oppositely superposition, and the bottom of V-arrangement filler is provided with filler pad.By adopting the inclined-plane of U-shaped elastic ring and butterfly plate to carry out metal sealing, inserts and valve body are fitted simultaneously, and fitted seal ring, ensure that there is good sealing effect; The design that U-shaped elastic ring is slidably installed in loose slot can make butterfly plate carry out auto-compensation when being sealed and matched with U-shaped elastic ring, thus improves sealability further; Stuffing box selects V-arrangement filler and oppositely superposition in addition, and also improve sealability further, thus make it be applicable to mesohigh occasion, the cost of this structure is also lower simultaneously.
Description
Technical field
The utility model relates to a kind of butterfly valve, especially a kind of modified node method of butterfly valve.
Background technique
Traditional butterfly valve structure; generally be applicable to the switch control rule of low pressure pipeline medium; when working in mesohigh environment; usually the problem of sealing can be produced; and for the special butterfly valve of mesohigh environment on market, how the often higher complex structure of cost, therefore improve the sealability promoting butterfly valve further; simultaneously production control cost is again the problem that instrument valve producer pays close attention to research all the time.
Model utility content
The purpose of this utility model is the problem overcoming above-mentioned prior art, provides a kind of modified node method of butterfly valve, and it can improve sealability, is applicable to mesohigh occasion, and cost is lower simultaneously.
The purpose of this utility model is achieved through the following technical solutions:
A kind of modified node method of butterfly valve, comprise valve body, valve rod and butterfly plate, described valve rod is rotatably installed on described valve body by axle sleeve, the bottom of described valve body is provided with bottom plug, described bottom plug abuts with the basal sliding of described valve rod, stuffing box is provided with between the upper end of described valve rod and described valve body, the top pressure holding of described stuffing box has pressing plate, above described pressing plate, pressure holding has gland, described valve rod runs through described pressing plate and described gland, described gland is fixedly connected with described valve body by bolt, described butterfly plate is fixedly mounted on described valve rod, the side of described valve body is fixedly connected with inserts, described inserts sealing fits in described valve body and pressure holding has seal ring, loose slot is provided with between described inserts and described valve body, in described loose slot, slip pressure holding has U-shaped elastic ring, the edge of described butterfly plate has inclined-plane, described inclined-plane and described U-shaped elastic ring are tightly connected, described stuffing box comprises the V-arrangement filler of oppositely superposition, and the bottom of described V-arrangement filler is provided with filler pad.
By designing separately the sealing at butterfly plate place, adopt the inclined-plane of U-shaped elastic ring and butterfly plate to carry out metal sealing, inserts and valve body are fitted simultaneously, and fitted seal ring, ensure that there is good sealing effect; The design that U-shaped elastic ring is slidably installed in loose slot can make butterfly plate carry out auto-compensation when being sealed and matched with U-shaped elastic ring, thus improves sealability further; Stuffing box selects V-arrangement filler and oppositely superposition in addition, also contributes to promoting its sealability further, thus makes its entirety be applicable to mesohigh occasion.The design cost of this structure is also lower simultaneously.
In order to ensure that U-shaped elastic ring has good elasticity and life-span, make it use more lasting, described U-shaped elastic ring adopts incoloy825 material.
Further, in order to avoid butterfly plate produces interference in the process of folding, inclination angle of inclined plane and the sliding stroke of described U-shaped elastic ring in described loose slot of described butterfly plate adapt.
Further, described V-arrangement filler is teflon.Described filler pad is stainless steel 304.
The modified node method of butterfly valve described in the utility model, comprise valve body, valve rod and butterfly plate, valve rod is rotatably installed on valve body by axle sleeve, the bottom of valve body is provided with bottom plug, and the side of valve body is fixedly connected with inserts, and inserts sealing fits in valve body and pressure holding has seal ring, loose slot is provided with between inserts and valve body, in loose slot, slip pressure holding has U-shaped elastic ring, and the edge of butterfly plate has inclined-plane, and inclined-plane and U-shaped elastic ring are tightly connected; Stuffing box comprises the V-arrangement filler of oppositely superposition, and the bottom of V-arrangement filler is provided with filler pad.By designing separately the sealing at butterfly plate place, adopt the inclined-plane of U-shaped elastic ring and butterfly plate to carry out metal sealing, inserts and valve body are fitted simultaneously, and fitted seal ring, ensure that there is good sealing effect; The design that U-shaped elastic ring is slidably installed in loose slot can make butterfly plate carry out auto-compensation when being sealed and matched with U-shaped elastic ring, thus improves sealability further; Stuffing box selects V-arrangement filler and oppositely superposition in addition, and also improve sealability further, thus make its entirety be applicable to mesohigh occasion, the cost of this structure is also lower simultaneously.
Accompanying drawing explanation
Fig. 1 is the plan view of the modified node method of a kind of butterfly valve described in the utility model;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the partial enlarged drawing at P place in Fig. 1.
Embodiment
According to drawings and embodiments the utility model is described in further detail below.
As Fig. 1, shown in Fig. 2 and Fig. 3, the modified node method of a kind of butterfly valve described in the utility model embodiment, comprise valve body 1, valve rod 2 and butterfly plate 5, valve rod 2 is rotatably installed on valve body 1 by axle sleeve 3, the bottom of valve body 1 is provided with bottom plug 4, bottom plug 4 abuts with the basal sliding of valve rod 2, stuffing box is provided with between the upper end of valve rod 2 and valve body 1, the top pressure holding of stuffing box has pressing plate 8, above pressing plate 8, pressure holding has gland 9, valve rod 2 runs through pressing plate 8 and gland 9, gland 9 is fixedly connected with valve body 1 by bolt 14, butterfly plate 5 is fixedly mounted on valve rod 2, the side of valve body 1 is fixedly connected with inserts 10, inserts 10 sealing fits in valve body 1 and pressure holding has seal ring 11, loose slot 12 is provided with between inserts 10 and valve body 1, in loose slot 12, slip pressure holding has U-shaped elastic ring 13, the edge of butterfly plate 5 has inclined-plane 5a, inclined-plane 5a and U-shaped elastic ring 13 are tightly connected, stuffing box comprises the V-arrangement filler 6 of oppositely superposition, and the bottom of V-arrangement filler 6 is provided with filler pad 7.
By designing separately the sealing at butterfly plate 13 place, adopt U-shaped elastic ring 13 to carry out metal sealing with the inclined-plane 5a of butterfly plate 5, inserts 10 and valve body 1 are fitted simultaneously, and fitted seal ring 11, ensure that there is good sealing effect; The design that U-shaped elastic ring 13 is slidably installed in loose slot 12 can make butterfly plate 5 carry out auto-compensation when being sealed and matched with U-shaped elastic ring 13, thus improves sealability further; Stuffing box selects V-arrangement filler 6 and oppositely superposition in addition, also contributes to promoting its sealability further, thus makes its entirety be applicable to mesohigh occasion.The design cost of this structure is also lower simultaneously.
In order to ensure that U-shaped elastic ring 13 has good elasticity and life-span, make it use more lasting, U-shaped elastic ring 13 adopts incoloy825 material.
In order to avoid butterfly plate 5 produces interference in the process of folding, 5a inclination angle, inclined-plane and the sliding stroke of U-shaped elastic ring 13 in loose slot 12 of butterfly plate 5 adapt.
V-arrangement filler 6 is teflon.Filler pad 7 is stainless steel 304.
The foregoing is only and mode of execution of the present utility model is described; be not limited to the utility model; for a person skilled in the art; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. the modified node method of a butterfly valve, comprise valve body, valve rod and butterfly plate, described valve rod is rotatably installed on described valve body by axle sleeve, the bottom of described valve body is provided with bottom plug, described bottom plug abuts with the basal sliding of described valve rod, stuffing box is provided with between the upper end of described valve rod and described valve body, the top pressure holding of described stuffing box has pressing plate, above described pressing plate, pressure holding has gland, described valve rod runs through described pressing plate and described gland, described gland is fixedly connected with described valve body by bolt, described butterfly plate is fixedly mounted on described valve rod, it is characterized in that, the side of described valve body is fixedly connected with inserts, described inserts sealing fits in described valve body and pressure holding has seal ring, loose slot is provided with between described inserts and described valve body, in described loose slot, slip pressure holding has U-shaped elastic ring, the edge of described butterfly plate has inclined-plane, described inclined-plane and described U-shaped elastic ring are tightly connected, described stuffing box comprises the V-arrangement filler of oppositely superposition, and the bottom of described V-arrangement filler is provided with filler pad.
2. the modified node method of butterfly valve as claimed in claim 1, is characterized in that, described U-shaped elastic ring adopts incoloy825 material.
3. the modified node method of butterfly valve as claimed in claim 2, it is characterized in that, inclination angle of inclined plane and the sliding stroke of described U-shaped elastic ring in described loose slot of described butterfly plate adapt.
4. the modified node method of butterfly valve as claimed in claim 3, it is characterized in that, described V-arrangement filler is teflon.
5. the modified node method of butterfly valve as claimed in claim 4, it is characterized in that, described filler pad is stainless steel 304.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420431825.4U CN204083273U (en) | 2014-08-01 | 2014-08-01 | A kind of modified node method of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420431825.4U CN204083273U (en) | 2014-08-01 | 2014-08-01 | A kind of modified node method of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204083273U true CN204083273U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420431825.4U Active CN204083273U (en) | 2014-08-01 | 2014-08-01 | A kind of modified node method of butterfly valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN204083273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798613A (en) * | 2018-06-28 | 2018-11-13 | 中国海洋石油集团有限公司 | A kind of sealing structure for Intelligent well underground flow controller |
-
2014
- 2014-08-01 CN CN201420431825.4U patent/CN204083273U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798613A (en) * | 2018-06-28 | 2018-11-13 | 中国海洋石油集团有限公司 | A kind of sealing structure for Intelligent well underground flow controller |
| CN108798613B (en) * | 2018-06-28 | 2020-11-24 | 中国海洋石油集团有限公司 | Sealing structure for intelligent underground flow controller |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |