CN205781272U - A kind of butterfly valve actuating device - Google Patents
A kind of butterfly valve actuating device Download PDFInfo
- Publication number
- CN205781272U CN205781272U CN201620481605.1U CN201620481605U CN205781272U CN 205781272 U CN205781272 U CN 205781272U CN 201620481605 U CN201620481605 U CN 201620481605U CN 205781272 U CN205781272 U CN 205781272U
- Authority
- CN
- China
- Prior art keywords
- worm gear
- caging bolt
- thread
- worm
- butterfly valve
- 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 butterfly valve actuating device, including the drive mechanism being made up of worm gear and worm screw, one end of described worm screw is equipped with hands handle, described worm gear has travelling gear, there is outside worm gear worm gear shell, by gasket seal equipped with extending in worm gear shell for limiting the caging bolt of described travelling gear position on worm gear shell, equipped with stop nut on described caging bolt, described gasket seal is the thread seal pad with the female thread that the external screw thread with described caging bolt matches, when described caging bolt is loaded on worm gear shell, this stop nut is pressed on thread seal pad.Use the butterfly valve actuating device of said structure, can be raised and lowered by swivel bolt when needs regulation caging bolt height, nut can realize closely cooperating of thread seal pad and caging bolt screw thread to the extruding of thread seal pad, and then can realize the excellent sealing between caging bolt and worm gear shell.
Description
Technical field
This utility model relates to a kind of butterfly valve actuating device.
Background technology
Butterfly valve actuating device is by driving the open and close of butterfly valve plate to realize the opening and closing of butterfly valve.nullButterfly valve actuating device，Mainly include the drive mechanism being made up of worm gear and worm screw，One end of described worm screw is equipped with handle，Described worm gear has travelling gear，There is outside worm gear worm gear shell，By gasket seal equipped with extending in worm gear shell for limiting the caging bolt of described travelling gear position on worm gear shell，Can exactly travelling gear be carried out spacing by caging bolt，And then valve plate can be made exactly to be in fully opened and a fully to close two states，In order to ensure the fully opened and a fully closedown of valve plate，Need the Height Adjustable of caging bolt，The butterfly valve actuating device of above-mentioned prior art can cause gasket seal seal failure when regulating the height of bolt，The liquid medium outside working oil medium in worm gear shell is with the worm gear shell phenomenon by the mutual seepage of screw thread of caging bolt often occurs，Have a strong impact on the service life of butterfly valve actuating device.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of caging bolt height adjustable and has the butterfly valve actuating device of excellent sealing between caging bolt and worm gear shell.
For solving above-mentioned technical problem, this utility model one butterfly valve actuating device, including the drive mechanism being made up of worm gear and worm screw, one end of described worm screw is equipped with hands handle, described worm gear has travelling gear, there is outside worm gear worm gear shell, by gasket seal equipped with extending in worm gear shell for limiting the caging bolt of described travelling gear position on worm gear shell, equipped with stop nut on described caging bolt, described gasket seal is the thread seal pad with the female thread that the external screw thread with described caging bolt matches, when described caging bolt is loaded on worm gear shell, this stop nut is pressed on thread seal pad.
Use the butterfly valve actuating device of said structure, due on described caging bolt equipped with stop nut, described gasket seal is the thread seal pad with the female thread that the external screw thread with described caging bolt matches, when described caging bolt is loaded on worm gear shell, this stop nut is pressed on thread seal pad, therefore can be raised and lowered by swivel bolt when needs regulation caging bolt height, nut can realize closely cooperating of thread seal pad and caging bolt screw thread to the extruding of thread seal pad, and then the excellent sealing between caging bolt and worm gear shell can be realized.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings this utility model is described in further detail.
Fig. 1 is the sectional structure schematic diagram of this utility model a kind of butterfly valve actuating device.
Fig. 2 is the sectional structure schematic diagram of the thread seal pad in this utility model a kind of butterfly valve actuating device.
Detailed description of the invention
See Fig. 1, Fig. 2, a kind of butterfly valve actuating device of the present utility model, including the drive mechanism being made up of worm gear 10 and worm screw 20, one end of described worm screw 20 is equipped with handle 30, described worm gear 10 has travelling gear 11, there is outside worm gear 10 worm gear shell 40, by gasket seal 50 equipped with extending in worm gear shell for limiting the caging bolt 51 of described travelling gear 11 position on worm gear shell 40, equipped with stop nut 52 on described caging bolt 51, described gasket seal 50 is the thread seal pad with the female thread 501 that the external screw thread with described caging bolt 51 matches, when described caging bolt 51 is loaded on worm gear shell 40, this stop nut 52 is pressed on thread seal pad.
Claims (1)
- null1. a butterfly valve actuating device，Including the drive mechanism being made up of worm gear (10) and worm screw (20)，One end of described worm screw (20) is equipped with handle (30)，Described worm gear (10) has travelling gear (11)，There is outside worm gear (10) worm gear shell (40)，By gasket seal (50) equipped with extending in worm gear shell for limiting the caging bolt (51) of described travelling gear (11) position on worm gear shell (40)，It is characterized in that: equipped with stop nut (52) on described caging bolt (51)，Described gasket seal (50) is the thread seal pad with the female thread (501) that the external screw thread with described caging bolt (51) matches，When described caging bolt (51) is loaded on worm gear shell (40)，This stop nut (52) is pressed on thread seal pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620481605.1U CN205781272U (en) | 2016-05-25 | 2016-05-25 | A kind of butterfly valve actuating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620481605.1U CN205781272U (en) | 2016-05-25 | 2016-05-25 | A kind of butterfly valve actuating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205781272U true CN205781272U (en) | 2016-12-07 |
Family
ID=58114263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620481605.1U Active CN205781272U (en) | 2016-05-25 | 2016-05-25 | A kind of butterfly valve actuating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205781272U (en) |
-
2016
- 2016-05-25 CN CN201620481605.1U patent/CN205781272U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |