CN205534550U - Valve rod axial positioning seal structure - Google Patents
Valve rod axial positioning seal structure Download PDFInfo
- Publication number
- CN205534550U CN205534550U CN201620332054.2U CN201620332054U CN205534550U CN 205534550 U CN205534550 U CN 205534550U CN 201620332054 U CN201620332054 U CN 201620332054U CN 205534550 U CN205534550 U CN 205534550U
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- China
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- valve rod
- valve body
- valve
- sealing member
- rod axial
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Abstract
The utility model provides a valve rod axial positioning seal structure. The valve rod axial positioning structural style who has mainly solved current valve (especially butterfly valve) is various, but the not quite good problem of its sealing performance. The utility model provides a valve rod axial positioning seal structure is equipped with the valve rod in its valve body, be equipped with the case on the valve rod, valve body bottom swing joint have with mounting flange under the interval adjustable between the valve body is equipped with flange portion on the valve rod circumference outer wall, valve body axial bottom with be equipped with the constant head tank down between the mounting flange opposite face, flange portion locates in the constant head tank and the constant head tank bottom is equipped with and seals the flexible sealing member of complex with valve body circumference inner wall. Through the lower part location that the valve rod had been realized to the constant head tank, the sealing member receives flange portion and lower flange lid extrusion back, and to circumference direction inflation, sealed effect is better.
Description
Technical field
This utility model relates to valve field, is specially a kind of valve rod axial location sealing structure.
Background technology
In universal valve, butterfly valve is owing to volume is little, lightweight, installing space is little, and bore specification is far longer than the advantages such as other valve classes so that it is be increasingly becoming the valve that range of application is the widest.
The axial positioning structure of the valve rod of valve (particularly butterfly valve) is various informative at present, but its sealing property is not fine.
Utility model content
In order to overcome the deficiency of background technology, this utility model provides a kind of valve rod axial location sealing structure, and the valve rod axial positioning structure mainly solving existing valve (particularly butterfly valve) is various informative, but its sealing property is not good problem.
This utility model be the technical scheme is that
A kind of valve rod axial location sealing structure, including valve body, it is provided with valve rod in described valve body, described valve rod is provided with spool, described body base is connected with the adjustable lower mounting flange of spacing between described valve body, described valve rod peripheral outer wall is provided with flange part, and described valve body is axially provided with locating slot between bottom and described lower mounting flange opposite face, is provided with and seals, with described valve body inner circumferential wall, the resilient sealing member coordinated in described flange part is located at described locating slot and bottom described locating slot.
Described flange part is the thrust block seat being fixedly connected on described stem bottom circumference, and described lower mounting flange is provided with the boss of projection, and described sealing member is located between described boss and described thrust block seat.
Being connected with divided ring on described valve rod, described valve rod is coaxially provided with the fixed part that diameter diminishes, and described thrust block seat is set in described fixed part outer wall and bottom compresses with described divided ring.
Described sealing member is made up of soft graphite.
Described boss and described sealing member contact surface are zigzag structure.
Described lower mounting flange is connected with described valve body by fastening bolt.
The beneficial effects of the utility model are: a kind of valve rod axial location sealing structure, it is provided with valve rod in its valve body, valve rod is provided with spool, body base is connected with the adjustable lower mounting flange of spacing between described valve body, valve rod peripheral outer wall is provided with flange part, valve body is axially provided with locating slot between bottom and lower mounting flange opposite face, is provided with and seals, with valve body inner circumferential wall, the resilient sealing member coordinated in flange part is located at locating slot and bottom locating slot.The bottom being achieved valve rod by locating slot is positioned, and after sealing member is extruded by flange part and lower flange lid, expands to circumferential direction, and sealing effectiveness is more preferable.
Accompanying drawing explanation
Fig. 1 is the sectional view of one embodiment of this utility model.
Fig. 2 is enlarged drawing at Figure 1A.
Fig. 3 is the schematic diagram of the divided ring of one embodiment of this utility model.
Fig. 4 is the sectional view of the lower adpting flange of one embodiment of this utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings: as shown in the figure, a kind of valve rod axial location sealing structure, including valve body 1, it is provided with valve rod 3 in described valve body 1, described valve rod 3 is provided with spool 2, the adjustable lower mounting flange 6 of spacing between described valve body 1 it is connected with bottom described valve body 1, described valve rod 3 peripheral outer wall is provided with flange part, described valve body 1 is axially provided with locating slot 9 between bottom and described lower mounting flange 6 opposite face, it is provided with in described flange part is located at described locating slot 9 and bottom described locating slot 9 and seals, with described valve body 1 inner circumferential wall, the resilient sealing member 4 coordinated.Flange part is located in locating slot, and can fit with valve interior wall in upper end, bottom is arranged on the upper surface of sealing member, serves the effect of location；Valve rod axially loaded when, it is pressed on sealing member, sealing member is to the inwall laminating of circumference extruding with the circumference of valve body, further enhance sealing effectiveness, this flange part can be the part on valve rod can also be the parts being additionally installed on valve rod, this utility model provides a kind of valve rod axial location sealing structure, it is provided with valve rod in its valve body, valve rod is provided with spool, body base is removably connected with the lower mounting flange corresponding with valve rod, valve rod peripheral outer wall is provided with flange part, valve body is axially provided with locating slot between bottom and lower mounting flange opposite face, it is provided with in flange part is located at locating slot and bottom locating slot and seals, with valve body inner circumferential wall, the resilient sealing member coordinated.The bottom being achieved valve rod by locating slot is positioned, and after sealing member is extruded by flange part and lower flange lid, expands to circumferential direction, and sealing effectiveness is more preferable.
In this utility model, as it can be seen, described flange part is to be fixedly connected on the thrust block seat 5 of circumference bottom described valve rod 3, described lower mounting flange 6 is provided with the boss 61 of projection, and described sealing member 4 is located between described boss 61 and described thrust block seat 5.Here flange part is the structure of thrust block seat, i.e. split, convenient the when of assembling.
In this utility model, as it can be seen, be connected with divided ring 7 on described valve rod 3, described valve rod 3 is coaxially provided with the fixed part 31 that diameter diminishes, and described thrust block seat 5 is set in described fixed part 31 outer wall and bottom and compresses with described divided ring 7.Divided ring is arranged on stem bottom, prevents thrust block seat from coming off, and simple in construction is easy to use.
In this utility model, as it can be seen, described sealing member 4 is made up of soft graphite.Soft graphite, also known as expanded graphite, possesses beyond the premium properties such as cold-hot, corrosion-resistant, self-lubricating, also has the characteristics such as the unexistent softness of native graphite, compression resilience, adsorptivity, and using effect is more preferable.
In this utility model, as it can be seen, described boss 61 and described sealing member 4 contact surface are zigzag structure.Sealing ring 4, after lower flange lid compresses, seals relatively reliable.
In this utility model, as it can be seen, described lower mounting flange 6 is connected with described valve body 1 by fastening bolt.Tightened bolt presses can be passed through at lower mounting flange, reach to position the effect of valve rod.
Embodiment is not construed as restriction of the present utility model, but any based on spirit improvements introduced of the present utility model, all should be within protection domain of the present utility model.
Claims (6)
1. a valve rod axial location sealing structure, including valve body (1), valve rod (3) it is provided with in described valve body (1), described valve rod (3) is provided with spool (2), it is characterized in that: described valve body (1) bottom is connected with the adjustable lower mounting flange of spacing (6) between described valve body (1), described valve rod (3) peripheral outer wall is provided with flange part, described valve body (1) is axially provided with locating slot (9) between bottom and described lower mounting flange (6) opposite face, in described flange part is located at described locating slot (9) and described locating slot (9) bottom is provided with and seals, with described valve body (1) inner circumferential wall, the resilient sealing member (4) coordinated.
A kind of valve rod axial location sealing structure the most according to claim 1, it is characterized in that: described flange part is the thrust block seat (5) being fixedly connected on described valve rod (3) bottom circumference, described lower mounting flange (6) is provided with the boss (61) of projection, and described sealing member (4) is located between described boss (61) and described thrust block seat (5).
A kind of valve rod axial location sealing structure the most according to claim 2, it is characterized in that: on described valve rod (3), be connected with divided ring (7), described valve rod (3) is coaxially provided with the fixed part (31) that diameter diminishes, and described thrust block seat (5) is set in described fixed part (31) outer wall and bottom and compresses with described divided ring (7).
A kind of valve rod axial location sealing structure the most according to claim 1, it is characterised in that: described sealing member (4) is made up of soft graphite.
A kind of valve rod axial location sealing structure the most according to claim 2, it is characterised in that: described boss (61) and described sealing member (4) contact surface are zigzag structure.
A kind of valve rod axial location sealing structure the most according to claim 1, it is characterised in that: described lower mounting flange (6) is connected with described valve body (1) by fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620332054.2U CN205534550U (en) | 2016-04-20 | 2016-04-20 | Valve rod axial positioning seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620332054.2U CN205534550U (en) | 2016-04-20 | 2016-04-20 | Valve rod axial positioning seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205534550U true CN205534550U (en) | 2016-08-31 |
Family
ID=56794032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620332054.2U Active CN205534550U (en) | 2016-04-20 | 2016-04-20 | Valve rod axial positioning seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205534550U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357075A (en) * | 2018-11-30 | 2019-02-19 | 江南阀门有限公司 | The anti-jamming increasing Slipped Clove Hitch structure in valve rod lower end |
| CN109826964A (en) * | 2019-03-14 | 2019-05-31 | 江苏神通阀门股份有限公司 | A kind of axial limit structure |
-
2016
- 2016-04-20 CN CN201620332054.2U patent/CN205534550U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357075A (en) * | 2018-11-30 | 2019-02-19 | 江南阀门有限公司 | The anti-jamming increasing Slipped Clove Hitch structure in valve rod lower end |
| CN109357075B (en) * | 2018-11-30 | 2024-07-09 | 江南阀门有限公司 | Anti-seizing slip-increasing structure for lower end part of valve rod |
| CN109826964A (en) * | 2019-03-14 | 2019-05-31 | 江苏神通阀门股份有限公司 | A kind of axial limit structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |