CN2828465Y - Electric butterfly valve of closing when power-cut - Google Patents
Electric butterfly valve of closing when power-cut Download PDFInfo
- Publication number
- CN2828465Y CN2828465Y CN 200520076249 CN200520076249U CN2828465Y CN 2828465 Y CN2828465 Y CN 2828465Y CN 200520076249 CN200520076249 CN 200520076249 CN 200520076249 U CN200520076249 U CN 200520076249U CN 2828465 Y CN2828465 Y CN 2828465Y
- Authority
- CN
- China
- Prior art keywords
- valve
- shaft
- electric
- swing arm
- normally closed
- 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.)
- Expired - Fee Related
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- Lift Valve (AREA)
Abstract
The utility model provides an electric butterfly valve of closing when power is cut, which comprises an electric device and a valve main body, wherein a normally closed type jack electromagnetic clutch is arranged between the head part of the valve main body and the electric device; a valve shaft and an output shaft of the electric device are connected through the normally closed type jack electromagnetic clutch; a swing arm and a weight dropper are arranged on a rotating shaft at the tail part of the valve main body; the swing arm and the valve shaft are connected by a key. The utility model has the advantages that the electric valve can realize the quick closing when the power is cut, the structure is simple and the security requirement of a metallurgy system or a nuclear system is satisfied.
Description
Affiliated technical field
The utility model relates to a kind of electric butterfly valve, particularly relates to a kind ofly can realizing the electric butterfly valve that butterfly valve cuts out when dead electricity.
Background technique
The present use at electric butterfly valve metallurgical, that nuclear power industry is used, owing to the auto-lock function of Electric actuator, valve can only be in residing position when cutting off the power supply when system's dead electricity.Realize that valve closes when dead electricity, can only adopt band spring reset formula single-acting Pneumatic actuator.
Summary of the invention
In order to overcome the deficiency that existing electric butterfly valve can not cut out when the dead electricity voluntarily, the electric butterfly valve that can close voluntarily when the utility model provides a kind of dead electricity.
The technological scheme that its technical problem that solves the utility model adopts is the electric butterfly valve that a kind of dead electricity is closed, comprise Electric actuator, valve body, Normally closed type tooth embedding magnetic clutch is housed between valve body head and the Electric actuator, and valve shaft connects by Normally closed type tooth embedding magnetic clutch with the output shaft of Electric actuator; In the afterbody rotating shaft of valve body swing arm, weight are housed, swing arm is connected by key with valve shaft.
The beneficial effects of the utility model are electric valve quick closedown can be implemented in dead electricity the time, and are simple in structure, satisfy the security requirement of metallurgy or nuclear power system.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 embodiment's sectional view.
Among the figure: 1. Electric actuator; 2. output shaft; 3. Normally closed type tooth embedding magnetic clutch; 4. valve shaft; 5. valve body; 6. swing arm; 7. weight; 8. nut.
Embodiment
As shown in Figure 1, the electric butterfly valve that a kind of dead electricity is closed, comprise Electric actuator 1, valve body 5, Normally closed type tooth embedding magnetic clutch 3 is housed between the head of valve body 5 and the Electric actuator 1, valve shaft 4 connects by Normally closed type tooth embedding magnetic clutch 3 with the output shaft 2 of Electric actuator 1; Swing arm 6, weight 7 are housed on the valve shaft 4 of valve body 5 afterbodys, and swing arm 6 and valve shaft 4 are connected by key, and the afterbody of valve shaft 4 has been attacked screw thread, by nut 8 swing arm 6 is positioned on the valve shaft 4.During normal state, Normally closed type tooth embedding magnetic clutch 3 be in electricity condition, function such as the output shaft 2 of Electric actuator 1 is in coupled situation with valve shaft 4, and valve can realize open and close under the driving of Electric actuator 1, stop.Under systematic failures (dead electricity) state, as this moment valve be standard-sized sheet, then the swing arm weight is in raised state, Normally closed type tooth embedding magnetic clutch 3 dead electricity, the output shaft of Electric actuator 1 and valve shaft 4 are in disengaged condition, but valve quick closedown under the effect of swing arm weight-driven potential energy.
Claims (1)
1, a kind of dead electricity electric butterfly valve of closing, comprise Electric actuator, valve body, it is characterized in that: Normally closed type tooth embedding magnetic clutch is housed between the head of described valve body and the Electric actuator, and valve shaft connects by described Normally closed type tooth embedding magnetic clutch with the output shaft of Electric actuator; Swing arm, weight are housed on the valve shaft of described valve body afterbody, and swing arm is connected by key with valve shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520076249 CN2828465Y (en) | 2005-10-01 | 2005-10-01 | Electric butterfly valve of closing when power-cut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520076249 CN2828465Y (en) | 2005-10-01 | 2005-10-01 | Electric butterfly valve of closing when power-cut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2828465Y true CN2828465Y (en) | 2006-10-18 |
Family
ID=37080021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520076249 Expired - Fee Related CN2828465Y (en) | 2005-10-01 | 2005-10-01 | Electric butterfly valve of closing when power-cut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2828465Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246933A (en) * | 2016-10-09 | 2016-12-21 | 中国科学院工程热物理研究所 | Valve cut soon by a kind of passive machinery blended for gas |
-
2005
- 2005-10-01 CN CN 200520076249 patent/CN2828465Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246933A (en) * | 2016-10-09 | 2016-12-21 | 中国科学院工程热物理研究所 | Valve cut soon by a kind of passive machinery blended for gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |