CN206513940U - A kind of new back seal butterfly valve - Google Patents
A kind of new back seal butterfly valve Download PDFInfo
- Publication number
- CN206513940U CN206513940U CN201720187316.5U CN201720187316U CN206513940U CN 206513940 U CN206513940 U CN 206513940U CN 201720187316 U CN201720187316 U CN 201720187316U CN 206513940 U CN206513940 U CN 206513940U
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- valve rod
- valve
- hole
- conical surface
- fan
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Abstract
The utility model is related to a kind of new back seal butterfly valve.Including valve body, lower valve rod and butterfly plate, the lower valve rod is fixedly connected with the butterfly plate being built in valve body, valve body upper end is provided with support, pedestal upper end is provided with retainer, provided with the worm and gear cooperated in retainer, mid-stent is provided with cavity, the upper valve rod through its upper and lower ends is provided with support, upper valve worm and wheel is connected, upper valve rod lower end is connected with lower valve rod upper end, pedestal lower end is provided with through hole, filler is provided between upper valve rod and through hole upper end inwall, the filler upper end is provided with the gland being located in cavity, shoulder hole is provided with the through hole of pedestal lower end, the conical surface is provided with step in shoulder hole, the lower end of upper valve rod is provided with the taper platform being engaged with the conical surface, the bottom surface of retainer is provided with fan-shaped gradient step, worm gear lower surface is provided with the scalloped bevel being engaged with fan-shaped gradient step.The utility model is simple in construction, effectively prevents the particle in medium from penetrating into, protection valve rod and filler, improves valve rod and filler service life.
Description
Technical field
The utility model is related to a kind of butterfly valve, more particularly to a kind of new back seal butterfly valve.
Background technology
Butterfly valve is called flap valve, is a kind of regulating valve simple in construction, what the switch available for low pressure pipeline medium was controlled
Butterfly valve refers to closure member（Flap or butterfly plate）For disk, a kind of valve of open and close is reached around valve shaft rotation, valve can
For controlling all kinds such as empty gas and water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium
The flowing of fluid.It is main on pipeline to play cut-out and throttling action.Butterfly valve opening and closing element is a discoidal butterfly plate, in valve body
Rotated around the axis of its own, so as to reach the purpose for opening and closing or adjusting.In the butterfly valve design being currently known, valve rod and valve body
And the design between filler is substantially matching design, the cooperation between valve body and filler and valve rod exist it is either large or small between
Gap, then some media be granular occasion, especially when the smallest particles size of medium is than valve rod and valve body and filler
Between gap hour, particle is easy for permeating from gap, so that particle is accumulated on valve rod, time length, particle packing is tight
Weight, can wear and tear valve rod and filler when valve rod is rotated, and reduce the service life of valve rod and filler.
Utility model content
For drawbacks described above, the purpose of this utility model is to provide a kind of simple in construction, effectively prevents in medium
Grain penetrates into, protection valve rod and filler, improves valve rod and a kind of new back seal butterfly valve of filler service life.
The technical scheme used for this utility model is：
Including valve body, lower valve rod and butterfly plate, the lower valve rod is fixedly connected with the butterfly plate being built in valve body, the valve body
Upper end is provided with support, and the pedestal upper end is provided with retainer, the retainer provided with the worm and gear cooperated, the branch
The upper valve rod being provided with cavity, the support through its upper and lower ends is provided with the middle part of frame, the upper valve worm and wheel connection is described
Upper valve rod lower end is connected with lower valve rod upper end, and the pedestal lower end is provided between through hole, upper valve rod and through hole the upper end inwall
Provided with filler, the filler upper end is provided with the gland being located in cavity, the through hole of the pedestal lower end and is provided with shoulder hole,
The conical surface is provided with step in the shoulder hole, the lower end of the upper valve rod is provided with the taper platform being engaged with the conical surface, taper platform
The conical surface and step at conical surface formation conical surface seal pair, the bottom surface of the retainer is provided with fan-shaped gradient step, the worm gear
Lower surface is provided with the scalloped bevel being engaged with fan-shaped gradient step.
As the further improvement of above-mentioned technical proposal, the lower end of the upper valve rod and the upper end of lower valve rod pass through adapter sleeve
Connection.
As the further improvement of above-mentioned technical proposal, the frustoconical bevel angle at step in the shoulder hole is 45 degree.
As the further improvement of above-mentioned technical proposal, the radian of the fan-shaped gradient step is 90 degree, the fan-shaped slope
The quantity for spending step is two, and two fan-shaped gradient steps are distributed in 180 degree.
As the further improvement of above-mentioned technical proposal, the worm screw is connected with manual driving device.
The utility model has the advantages that：
The utility model is simple in construction, when worm and gear is run, and worm gear drives upper valve rod to move up, upper valve rod lower end
The conical surface of taper platform fitted with the conical surface at step in pedestal lower end shoulder hole, form conical surface seal pair, effectively prevent medium
In molecule enter between valve rod and filler, improve the service life of valve rod and filler.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of support.
Fig. 3 is Fig. 2 top view.
1 it is valve body in figure, 2 be lower valve rod, 3 be butterfly plate, 4 be support, 5 be retainer, 6 be worm gear, 7 be worm screw, 8 is empty
Chamber, 9 be upper valve rod, 10 be through hole, 11 be filler, 12 be shoulder hole, 13 be the conical surface, 14 be taper platform, 15 be fan-shaped gradient platform
Rank, 16 be adapter sleeve, 17 be manual driving device.
Embodiment
A kind of new back seal butterfly valve, including valve body 1, lower valve rod 2 and butterfly plate 3, the lower valve rod 2 is with being built in valve body 1
Interior butterfly plate 3 is fixedly connected, and the upper end of valve body 1 is provided with support 4, and the upper end of support 4 is provided with retainer 5, the retainer 5
It is provided with to be provided with cavity 8, the support 4 in the middle part of the interior worm screw 7 of worm gear 6 provided with mutual cooperation, the support 4 and runs through two above and below it
The upper valve rod 9 at end, the upper valve rod 9 is connected with worm gear 6, and the lower end of upper valve rod 9 is connected with the upper end of lower valve rod 2, the support 4
Lower end, which is provided between through hole 10, the upper end inwall of upper valve rod 9 and through hole 10, is provided with filler 11, and the upper end of filler 11 is provided with position
In the platform being provided with the gland 11 in cavity 8, the through hole 10 of the lower end of support 4 in shoulder hole 12, the shoulder hole 12
Be provided with the conical surface 13 at rank, the lower end of the upper valve rod 9 is provided with the taper platform 14 being engaged with the conical surface 13, the conical surface of taper platform 14 with
Conical surface formation conical surface seal pair at step, the bottom surface of the retainer 5 is provided with fan-shaped gradient step 15, the lower end of worm gear 6
Face is provided with the scalloped bevel being engaged with fan-shaped gradient step 15.
As the further improvement of above-mentioned technical proposal, the lower end of the upper valve rod 9 is with the upper end of lower valve rod 2 by being connected
Set 16 is connected.
As the further improvement of above-mentioned technical proposal, the frustoconical bevel angle at step in the shoulder hole 12 is 45 degree.
As the further improvement of above-mentioned technical proposal, the radian of the fan-shaped gradient step 15 is 90 degree, the sector
The quantity of gradient step 15 is two, and two fan-shaped gradient steps 15 are distributed in 180 degree.
As the further improvement of above-mentioned technical proposal, the worm screw 7 is connected with manual driving device 17.
When the driving worm gear 6 of worm screw 7 is rotated, the fan-shaped gradient step of the scalloped bevel of the lower surface of worm gear 6 along the bottom surface of retainer 5
15 rise, so as to drive upper valve rod 9 to rise, upper valve rod 9 drives the conical surface and the lower end shoulder hole 12 of support 4 of the taper platform 14 of lower end
Conical surface laminating at interior step, forms conical surface seal pair, effectively prevents molecule from entering between valve rod and filler, improve valve
The service life of bar and filler.
Claims (5)
1. a kind of new back seal butterfly valve, it is characterised in that including valve body, lower valve rod and butterfly plate, the lower valve rod is with being built in
Butterfly plate in valve body is fixedly connected, and the valve body upper end is provided with support, and the pedestal upper end is provided with retainer, the retainer
Worm and gear provided with mutual cooperation, the mid-stent is provided with cavity, the support and is provided with through the upper of its upper and lower ends
Valve rod, the upper valve worm and wheel connection, the upper valve rod lower end is connected with lower valve rod upper end, and the pedestal lower end is provided with logical
Filler is provided between hole, upper valve rod and through hole the upper end inwall, the filler upper end is provided with the gland being located in cavity,
It is provided with the through hole of the pedestal lower end at the step in shoulder hole, the shoulder hole and is provided with the conical surface, the lower end of the upper valve rod
Provided with the taper platform being engaged with the conical surface, the conical surface of taper platform and the conical surface formation conical surface seal pair at step, the retainer
Bottom surface be provided with fan-shaped gradient step, the worm gear lower surface is provided with the scalloped bevel being engaged with fan-shaped gradient step.
2. a kind of new back seal butterfly valve according to claim 1, it is characterised in that the lower end of the upper valve rod and lower valve
The upper end of bar is connected by adapter sleeve.
3. a kind of new back seal butterfly valve according to claim 1, it is characterised in that at the step in the shoulder hole
Frustoconical bevel angle is 45 degree.
4. a kind of new back seal butterfly valve according to claim 1, it is characterised in that the radian of the fan-shaped gradient step
For 90 degree, the quantity of the fan-shaped gradient step is two, and two fan-shaped gradient steps are distributed in 180 degree.
5. a kind of new back seal butterfly valve according to claim 1, it is characterised in that the worm screw is connected with manual actuation
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720187316.5U CN206513940U (en) | 2017-02-28 | 2017-02-28 | A kind of new back seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720187316.5U CN206513940U (en) | 2017-02-28 | 2017-02-28 | A kind of new back seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206513940U true CN206513940U (en) | 2017-09-22 |
Family
ID=59868010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720187316.5U Active CN206513940U (en) | 2017-02-28 | 2017-02-28 | A kind of new back seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206513940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813010A (en) * | 2017-02-28 | 2017-06-09 | 络科实业集团有限公司 | A kind of new back seal butterfly valve |
-
2017
- 2017-02-28 CN CN201720187316.5U patent/CN206513940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813010A (en) * | 2017-02-28 | 2017-06-09 | 络科实业集团有限公司 | A kind of new back seal butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210406 Address after: 211400 Pangu industrial concentration area, Liu Ji Town, Yizheng City, Yangzhou, Jiangsu Patentee after: Liu Tong Address before: No. 126, Pangu industrial concentration area, Liuji Town, Yizheng City, Yangzhou City, Jiangsu Province, 211407 Patentee before: LOTOKE INDUSTRY GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210729 Address after: 510000 217, second floor, unit 2, building 2, No. 24, Jishan new road street, Tianhe District, Guangzhou, Guangdong Province (only for office) (not for plant) Patentee after: Xibosi (China) electric drive Co.,Ltd. Address before: 211400 Pangu industrial concentration area, Liu Ji Town, Yizheng City, Yangzhou, Jiangsu Patentee before: Liu Tong |
|
| TR01 | Transfer of patent right |