CN204114339U - A kind of valve rod - Google Patents
A kind of valve rod Download PDFInfo
- Publication number
- CN204114339U CN204114339U CN201420557937.4U CN201420557937U CN204114339U CN 204114339 U CN204114339 U CN 204114339U CN 201420557937 U CN201420557937 U CN 201420557937U CN 204114339 U CN204114339 U CN 204114339U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- spool
- keyway
- end portion
- boss
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of valve rod, have can with driving the handwheel upper end portion be fixedly connected with and the underpart that can be fixedly connected with spool, the upper end portion of described valve rod is evenly distributed in multiple keyway, and equal axial linear is provided with multiple screw fixed hole on the bottom surface of each keyway, the underpart of described valve rod is provided with the boss that can socket-connect with spool, and the circumferential surface of described boss offers seal groove, the end face of described boss be also provided with to downward-extension and the rectangular card joint of spacing clamping can be formed with described spool, described rectangular card joint is also provided with can the axis hole that passes of supply and marketing Axial and radial.Adopt said structure, the utility model provide a kind of can with driving handwheel and spool form the solid and reliable valve rod be connected.
Description
Technical field
The utility model relates to a kind of valve components, is specifically related to a kind of valve rod.
Background technique
Valve rod is component important in valve, valve rod usually have can with driving the handwheel upper end portion be fixedly connected with and the underpart that can be fixedly connected with spool, but in the prior art, between valve rod upper end portion and driving handwheel, and all fix by means of only latch grafting between valve rod underpart and spool, such vibrational power flow, when above-mentioned valve rod is applied on some relatively large valves, because driving force required on valve rod is larger, therefore easily cause for connecting valve rod and driving handwheel and the latch forced breakage for being connected valve rod and spool, thus make between valve rod with driving handwheel or lose between valve rod with spool to be connected, and then affect the normal work of valve.
Summary of the invention
For the deficiencies in the prior art, the utility model provide a kind of can with driving handwheel and spool form the solid and reliable valve rod be connected.
For achieving the above object, the utility model provides a kind of valve rod, have can with driving the handwheel upper end portion be fixedly connected with and the underpart that can be fixedly connected with spool, the upper end portion of described valve rod is evenly distributed in multiple keyway, and equal axial linear is provided with multiple screw fixed hole on the bottom surface of each keyway, the underpart of described valve rod is provided with the boss that can socket-connect with spool, and the circumferential surface of described boss offers seal groove, the end face of described boss be also provided with to downward-extension and the rectangular card joint of spacing clamping can be formed with described spool, described rectangular card joint is also provided with can the axis hole that passes of supply and marketing Axial and radial.
The beneficial effects of the utility model are: adopt said structure, upper end portion due to described valve rod is evenly distributed in multiple keyway, and equal axial linear is provided with multiple screw fixed hole on the bottom surface of each keyway, therefore first realize being connected by multiple circumferentially uniform flat key between valve rod with driving handwheel, and be also locked by screw radial direction between valve rod, flat key and driving handwheel after connecting, thus arranged by said structure, valve rod can be made and drive between handwheel to form solid and reliable connection, the underpart of described valve rod is then first by rectangular card joint and the spacing clamping of spool, then fixed by bearing pin grafting between the axis hole making rectangular card joint and spool, therefore arranged by said structure, can make also to form solid and reliable connection between valve rod and spool, simultaneously because described rectangular card joint is arranged on described boss, and described boss socket-connects with spool, and the circumferential surface of described boss offers seal groove, therefore by loading seal ring in described seal groove, effectively can guarantee the sealing of valve rod and spool joint, thus also just effectively avoid external agency to cause erosion to valve rod and spool joint, and then make the connection of valve rod and spool more solid and reliable.
The cross section that the utility model can be set to keyway on described valve rod upper end portion is further the cone structure of outer narrow inner width.
Adopt said structure, the cross section of described keyway is arranged to the cone structure of outer narrow inner width, can be used in and connect valve rod and drive the flat key of handwheel to be assemblied on valve rod more securely.
Accompanying drawing explanation
Fig. 1 is structural perspective of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment
As Fig. 1, a kind of valve rod is given shown in 2, have can with driving the handwheel upper end portion 1 be fixedly connected with and the underpart 2 that can be fixedly connected with spool, the upper end portion 1 of described valve rod is evenly distributed in multiple keyway 11, the cross section of described keyway 11 is the cone structure of outer narrow inner width, and equal axial linear is provided with multiple screw fixed hole 12 on the bottom surface of each keyway 11, the underpart 2 of described valve rod is provided with the boss 21 that can socket-connect with spool, and the circumferential surface of described boss 21 offers seal groove 211, the end face of described boss 21 be also provided with to downward-extension and the rectangular card joint 22 of spacing clamping can be formed with described spool, described rectangular card joint 22 is also provided with can the axis hole 221 that passes of supply and marketing Axial and radial.
Adopt said structure, due to the upper end portion 1 of described valve rod being evenly distributed in multiple keyway 11, and equal axial linear is provided with multiple screw fixed hole 12 on the bottom surface of each keyway 11, therefore first realize being connected by multiple circumferentially uniform flat key between valve rod with driving handwheel, and be also locked by screw radial direction between valve rod, flat key and driving handwheel after connecting, thus arranged by said structure, valve rod can be made and drive between handwheel to form solid and reliable connection, the underpart 2 of described valve rod is then first by rectangular card joint 22 and the spacing clamping of spool, then make to be fixed by bearing pin grafting between the axis hole 221 of rectangular card joint 22 and spool, therefore arranged by said structure, can make also to form solid and reliable connection between valve rod and spool, simultaneously because described rectangular card joint 22 is arranged on described boss 21, and described boss 21 socket-connects with spool, and the circumferential surface of described boss 21 offers seal groove 211, therefore by loading seal ring in described seal groove 211, effectively can guarantee the sealing of valve rod and spool joint, thus also just effectively avoid external agency to cause erosion to valve rod and spool joint, and then make the connection of valve rod and spool more solid and reliable.
Claims (2)
1. a valve rod, have can with driving the handwheel upper end portion be fixedly connected with and the underpart that can be fixedly connected with spool, it is characterized in that: the upper end portion of described valve rod is evenly distributed in multiple keyway, and equal axial linear is provided with multiple screw fixed hole on the bottom surface of each keyway, the underpart of described valve rod is provided with the boss that can socket-connect with spool, and the circumferential surface of described boss offers seal groove, the end face of described boss be also provided with to downward-extension and the rectangular card joint of spacing clamping can be formed with described spool, described rectangular card joint is also provided with can the axis hole that passes of supply and marketing Axial and radial.
2. a kind of valve rod according to claim 1, is characterized in that: on described valve rod upper end portion, the cross section of keyway is the cone structure of outer narrow inner width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557937.4U CN204114339U (en) | 2014-09-26 | 2014-09-26 | A kind of valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420557937.4U CN204114339U (en) | 2014-09-26 | 2014-09-26 | A kind of valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204114339U true CN204114339U (en) | 2015-01-21 |
Family
ID=52331650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420557937.4U Active CN204114339U (en) | 2014-09-26 | 2014-09-26 | A kind of valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204114339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340388A (en) * | 2018-12-06 | 2019-02-15 | 建湖县坤腾机械有限公司 | A kind of valve rod |
-
2014
- 2014-09-26 CN CN201420557937.4U patent/CN204114339U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340388A (en) * | 2018-12-06 | 2019-02-15 | 建湖县坤腾机械有限公司 | A kind of valve rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |