CN107013734A - Electrically operated valve opens and closes protection device - Google Patents
Electrically operated valve opens and closes protection device Download PDFInfo
- Publication number
- CN107013734A CN107013734A CN201710408657.5A CN201710408657A CN107013734A CN 107013734 A CN107013734 A CN 107013734A CN 201710408657 A CN201710408657 A CN 201710408657A CN 107013734 A CN107013734 A CN 107013734A
- Authority
- CN
- China
- Prior art keywords
- bumper bracket
- keying
- bearing
- valve
- limit contact
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/28—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with resilient valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The present invention relates to valve technology field, a kind of electrically operated valve is provided and opens and closes protection device, including valve rod, bearing, connecting pole is provided between lower keying bumper bracket and upper keying bumper bracket, spring stack is evenly equipped between lower keying bumper bracket and bearing, the upper free ends of spring stack are additionally provided with the locating part that diameter is more than spring stack, the lower periphery for opening and closing the spring stack between bumper bracket and bearing is respectively equipped with lower buffer spring, the lower periphery opened and closed between bumper bracket and upper keying bumper bracket is respectively equipped with buffer spring, the upper end of valve rod is connected with drive device, keying stopping means is additionally provided with the side of bearing, open and close stopping means and be provided with upper limit contact and lower limit contact, upper limit contact is set with lower limit contact separation, the lower side for opening and closing bumper bracket is provided with limiting plate, limiting plate is located between upper limit contact and lower limit contact, control board is additionally provided with bearing, upper limit contact is electrically connected with control board respectively with lower limit contact and drive device.
Description
Technical field
Protection device is opened and closed the present invention relates to valve technology field, more particularly to a kind of electrically operated valve.
Background technology
Known, electric gate valve presses side clockwise or counterclockwise respectively by electric operator driving valve rod action
The purpose for turning off or on valve to being rotated up to.It is similar also to have using protected type totally enclosed electric gate valve, the gate valve it is main by
Valve and shielding electric device two parts composition.Valve portion is main by valve body, bonnet, flashboard, ball screw assembly, and bearing etc.
Composition, position indicator is provided with bonnet, passes through being turned on and off for position indicator feedback signal control valve.This is electronic
Valve switch moment of torsion is small, small volume and light weight, still, there is problems with during the valve opening and closing folding：
1st, because Electronic control is frequently present of the inaccurate problem of valve opening and closed position, often occur closing provided with place
Or shock bounce-back occur makes valve have micro- phenomenon opened, uses, safeguards to valve, debugging and operation bring very big difficulty；
2nd, impulsive force during electronic quick control open-close sluice gate is big, and uplink and downlink are unstable, and long-term rotation valve rod is easy to wear, so that
Cause valve to close defect not in place, the phenomenon of dielectric leakage easily occur, shorten the service life of valve.
3rd, provided with hand-operating device, therefore valve can not be opened or closed in the case of power failure, valve opening and closing is by just
It can be restricted, it is extremely inconvenient when using.
The content of the invention
Therefore, for it is above-mentioned the problem of, the present invention proposes a kind of reasonable in design, to open and close stability good, is saved during closure
When labour-saving electrically operated valve open and close protection device.
To achieve the above object, present invention employs following technical scheme：Electrically operated valve opens and closes protection device, including valve
Lower keying bumper bracket, the lower keying bumper bracket are provided with above bar, in addition to the bearing above valve, the bearing
Top is interval with above keying bumper bracket, the upper keying bumper bracket and is interval with bogie, the lower keying bumper bracket
Connecting pole is provided between upper keying bumper bracket, spring stack, the spring are evenly equipped between lower the keying bumper bracket and bearing
The lower bumper bracket that opens and closes of top stretching of post is located between lower keying bumper bracket and upper keying bumper bracket, and the top of the spring stack is certainly
The locating part that diameter is more than spring stack, the periphery difference of the spring stack between lower keying bumper bracket and bearing are additionally provided with by end
Provided with lower buffer spring, the lower periphery opened and closed between bumper bracket and upper keying bumper bracket is respectively equipped with buffering elastic
Spring, the valve rod is arranged on bearing, and the lower end of valve rod is connected with valve opening and closing element, the upper end of valve rod stretch out bearing, under open
Close bumper bracket, upper keying bumper bracket and bogie and drive device is connected, keying limit is additionally provided with the side of the bearing
Position device, the keying stopping means is provided with upper limit contact and lower limit contact, between upper limit contact and lower limit contact
Every setting, the lower side for opening and closing bumper bracket is provided with limiting plate, and limiting plate is located between upper limit contact and lower limit contact,
Control board is additionally provided with the bearing, the upper limit contact is with lower limit contact and drive device respectively with controlling circuit
Plate is electrically connected.
It is further improved to be:Train of reduction gears and valve rod gear are provided between the upper keying bumper bracket and bogie, it is described
The engagement of valve rod gear and train of reduction gears be connected, the take-off lever connection of the train of reduction gears and drive device, the valve rod and
Valve rod gear is threadedly coupled.
It is further improved to be:The stopping means that opens and closes includes limit base, upper limit sliding sleeve and the lower limit located at bearing
Position sliding sleeve, the limit base arranged on left and right sides is respectively equipped with Limit screw, the upper limit sliding sleeve and lower limit sliding sleeve respectively with it is right
The Limit screw threaded connection answered, the upper limit sliding sleeve is provided with upper limit contact, and the lower limit sliding sleeve is provided with lower limit
Position contact.
It is further improved to be:The side that the upper top for opening and closing bumper bracket is located at train of reduction gears is additionally provided with manual behaviour
Make device, the hand-operating device includes manual lever and driving gear, the driving gear can clutch and reducing gear
Wheel group engagement connection, the action bars can oscilaltion located at it is upper keying bumper bracket on, the driving gear is fixedly arranged on operation
The outside of bar, is provided with compression spring between driving gear and upper keying bumper bracket, bogie, behaviour are stretched out in the upper end of the action bars
Make bar and be provided with locating groove positioned at bogie top, locating groove is provided with locating ring.
It is further improved to be:The side of the bogie, which is additionally provided with memory coding device, the memory coding device, to be passed through
Rotating shaft rotatably provided with debugging memory gear, the side of debugging memory gear be additionally provided with can with valve rod oscilaltion tooth
Row, the tooth row is connected with debugging memory gear engagement, and the memory coding device is electrically connected with control board respectively.
It is further improved to be:The upper position for opening and closing bumper bracket correspondence tooth row is fixedly provided with tooth row locating slide sleeve, institute
Tooth row is stated to be arranged in tooth row locating slide sleeve.
It is further improved to be：The drive device is motor.
By using preceding solution, the beneficial effects of the invention are as follows：During work, drive device passes through train of reduction gears
Band ovable valve stem pinion rotation, the upper and lower motion of band ovable valve stem is automatically turned on and closure with realizing valve while valve rod pinion rotation
Function.When drive device band ovable valve stem, which moves downwardly to valve opening and closing element, to be closed with valve body, now, the continuation of drive device
Rotation can then drive lower keying bumper bracket to compress upper buffer spring and move upwards, when limiting plate encounters upper limit contact,
System drive drive device is stopped, and valve is closed in place, and buffer spring can play the effect of protection valve opening and closing safety, reach
To the effect of precision control valve door closure, impulsive force during valve closure is reduced, while the elastic pressure of upper buffer spring is to closing
The valve of conjunction also acts as the effect of pre-pressing so that valve is closed very in place, is not in close provided with dielectric leakage in place
Phenomenon or occur hit bounce-back valve is had micro- phenomenon opened, the service life for extending valve is used to valve, safeguard, adjust
Examination and operation bring great convenience；When drive device band ovable valve stem moves up to valve opening maximum, now, driving dress
That puts is rotated further, and lower keying bumper bracket can be driven to compress lower buffer spring and move downward, until limiting plate encounters lower limit
During contact, system drive drive device is stopped, and in place, the setting of lower buffer spring reduces valve and risen when opening valve opening
Impulsive force, the up stability of valve is good, extends the service life of valve.
It is further improved to be：People can pass through the manual behaviour in the case of provided with hand-operating device, therefore power failure
Valve is opened or closed as device, valve opening and closing is flexibly unrestricted, extremely inconvenient when using.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the embodiment of the present invention.
Embodiment
In conjunction with the drawings and specific embodiments, the present invention is further described.
With reference to Fig. 1, the embodiment of the present invention discloses a kind of electrically operated valve and opens and closes protection device, including valve rod 1, in addition to located at
Bearing 2 above valve, the top of bearing 2 is provided with lower keying bumper bracket 3, and the lower top of keying bumper bracket 3 is spaced
Provided with upper keying bumper bracket 4, upper keying bumper bracket 4 top is interval with bogie 5, the lower keying bumper bracket 3 with it is upper
Connecting pole 31 is provided between keying bumper bracket 4, spring stack 21, the bullet are evenly equipped between lower the keying bumper bracket 3 and bearing 2
The top of spring post 21 is stretched out the lower bumper bracket 3 that opens and closes and is located between lower keying bumper bracket 3 and upper keying bumper bracket 4, the spring stack
21 upper free ends are additionally provided with the locating part 22 that diameter is more than spring stack 21, the lower spring opened and closed between bumper bracket 3 and bearing 2
The periphery of post 21 is respectively equipped with lower buffer spring 61, the lower circumference opened and closed between bumper bracket 3 and upper keying bumper bracket 4
Outside is respectively equipped with buffer spring 62, and the valve rod 1 is arranged on bearing 2, and the lower end of valve rod 1 is connected with valve opening and closing element
Connect, the upper end of valve rod 1 is stretched out bearing 2, lower keying bumper bracket 3, upper keying bumper bracket 4 and bogie 5 and interlocked with drive device 63
Connection, the drive device is motor.Keying stopping means, the keying stopping means are additionally provided with the side of the bearing 2
Including the limit base 71 located at bearing 2, upper limit sliding sleeve 72 and lower limit sliding sleeve 73, the arranged on left and right sides of limit base 71 difference
Provided with Limit screw 74, the upper limit sliding sleeve 72 is threadedly coupled with corresponding Limit screw 74 respectively with lower limit sliding sleeve 73,
The upper limit sliding sleeve 72 is provided with upper limit contact 721, and the lower limit sliding sleeve 73 is provided with lower limit contact 731.It is described
The lower side for opening and closing bumper bracket 3 is provided with limiting plate 31, limiting plate position 31 between upper limit contact 721 and lower limit contact 731,
Be additionally provided with control board 66 on the bearing 2, the upper limit contact 721 and lower limit contact 731 and motor respectively with control
Circuit board 66 processed is electrically connected.
Train of reduction gears 64 and valve rod gear 65, the valve rod gear 65 are provided between the upper keying bumper bracket 3 and bogie 5
It is connected with the engagement of train of reduction gears 64, the train of reduction gears 64 is connected with the take-off lever of motor, the valve rod 1 and valve rod gear
65 threaded connections.
The side that the upper top for opening and closing bumper bracket 4 is located at train of reduction gears 64 is additionally provided with hand-operating device, described
Hand-operating device include manual lever 81 and driving gear 82, the driving gear 82 can clutch with train of reduction gears 64
Engagement connection, the action bars 81 can oscilaltion located at it is upper keying bumper bracket 4 on, the driving gear 82 is fixedly arranged on operation
The outside of bar 81, is provided with compression spring 83 between driving gear 82 and upper keying bumper bracket 4, the upper end of the action bars 81 is stretched out
Bogie 5, action bars 81 is located at the top of bogie 5 and is provided with locating groove (end is shown in figure), and locating groove is provided with locating ring
(end is shown in figure).When the needs that have a power failure are manually operated, locating ring is removed, pressing operation bar makes its driving gear 82 overcome compression bullet
The pressure of spring is connected with the engagement of train of reduction gears 64, after train of reduction gears 64 is connected with the engagement of driving gear 82, is then turned manually
Dynamic action bars can move up and down with ovable valve stem and realize manual opening-closing function.Provided with hand-operating device, therefore situation about having a power failure
Lower people can open or close valve by the hand-operating device, and valve opening and closing is flexibly unrestricted, when using extremely not
It is convenient.
The side of the bogie 5 is additionally provided with memory coding device（End is shown in figure）, the memory coding device（End shows in figure
Go out）Upper rotatably to remember gear 91 provided with debugging by rotating shaft, the side of the debugging memory gear 91 is additionally provided with can be with valve
The tooth row 92 of the oscilaltion of bar 1, the tooth row 92 with debugging memory gear 91 engagement be connected, the memory coding device 9 respectively with
Control board 66 is electrically connected.
The upper position for opening and closing the correspondence tooth row 92 of bumper bracket 4 is fixedly provided with tooth row locating slide sleeve（End is shown in figure）, the tooth
Row 92 is arranged in tooth row locating slide sleeve.
During work, drive device is driven by train of reduction gears band ovable valve stem pinion rotation while valve rod pinion rotation
Function of the upper and lower motion of valve rod to realize valve automatic opening with close.When drive device band ovable valve stem moves downwardly to valve
When opening and closing element is closed with valve body, now, being rotated further for drive device can drive lower keying bumper bracket to compress upper buffer spring
And move upwards, when limiting plate encounters upper limit contact, system drive drive device is stopped, and valve is closed in place,
Buffer spring can play the effect of protection valve opening and closing safety, reach the effect of precision control valve door closure, reduce valve closure
When impulsive force, while the elastic pressure of upper buffer spring also acts as the effect of pre-pressing to the valve of closure so that valve is closed
Put the palms together before one and assign to position, be not in close provided with the phenomenon of dielectric leakage in place or occur hit bounce-back make valve have it is micro- open show
As the service life for extending valve is used to valve, is safeguarded, debugging and operation bring great convenience；When drive device band
When ovable valve stem moves up to valve opening maximum, now, being rotated further for drive device can drive lower keying bumper bracket pressure
Contracting is descended buffer spring and moved downward, and when limiting plate encounters lower limit contact, system drive drive device is stopped, valve
In place, the setting of lower buffer spring reduces impulsive force when valve is opened to door aperture, and the up stability of valve is good, extends valve
The service life of door.
Although specifically showing and describing the present invention with reference to preferred embodiment, those skilled in the art should be bright
In vain, do not departing from the spirit and scope of the present invention that appended claims are limited, in the form and details can be right
The present invention makes a variety of changes, and is the scope of the present invention.
Claims (7)
1. electrically operated valve opens and closes protection device, including valve rod, it is characterised in that：Also include the bearing above valve,
Be provided with above the bearing above lower keying bumper bracket, the lower keying bumper bracket and be interval with keying bumper bracket, it is described on
Open and close and bogie is interval with above bumper bracket, connecting pole, institute are provided between the lower keying bumper bracket and upper keying bumper bracket
State and spring stack is evenly equipped between lower keying bumper bracket and bearing, the top of the spring stack is stretched out lower open and close under bumper bracket is located at and opened
Close between bumper bracket and upper keying bumper bracket, the upper free ends of the spring stack are additionally provided with diameter and are more than the spacing of spring stack
Part, the periphery of the spring stack between lower keying bumper bracket and bearing is respectively equipped with lower buffer spring, and lower open and close buffers
Periphery between frame and upper keying bumper bracket is respectively equipped with buffer spring, and the valve rod is arranged on bearing, valve rod
Lower end is connected with valve opening and closing element, the upper end of valve rod stretch out bearing, lower keying bumper bracket, upper keying bumper bracket and bogie with
Drive device is connected, and keying stopping means is additionally provided with the side of the bearing, the keying stopping means is provided with upper
Spacing contact and lower limit contact, upper limit contact are set with lower limit contact separation, and the lower side for opening and closing bumper bracket is set
Limited location plate, limiting plate is located between upper limit contact and lower limit contact, and control board is additionally provided with the bearing, described
Upper limit contact is electrically connected with control board respectively with lower limit contact and drive device.
2. electrically operated valve according to claim 1 opens and closes protection device, it is characterised in that：The upper keying bumper bracket is with driving
Train of reduction gears and valve rod gear are provided between moving frame, the valve rod gear is connected with train of reduction gears engagement, the reducing gear
The take-off lever connection of wheel group and drive device, the valve rod is threadedly coupled with valve rod gear.
3. electrically operated valve according to claim 1 or 2 opens and closes protection device, it is characterised in that：The keying stopping means
Including the limit base located at bearing, upper limit sliding sleeve and lower limit sliding sleeve, the limit base arranged on left and right sides is respectively equipped with spacing spiral shell
Bar, the upper limit sliding sleeve is threadedly coupled with corresponding Limit screw respectively with lower limit sliding sleeve, is set on the upper limit sliding sleeve
There is upper limit contact, the lower limit sliding sleeve is provided with lower limit contact.
4. electrically operated valve according to claim 2 opens and closes protection device, it is characterised in that：It is described it is upper open and close bumper bracket it is upper
Orientation is additionally provided with hand-operating device in the side of train of reduction gears, and the hand-operating device includes manual lever and active
Gear, the driving gear can clutch with train of reduction gears engagement be connected, the action bars can oscilaltion be located above open
Close on bumper bracket, the driving gear is fixedly arranged on the outside of action bars, provided with compression between driving gear and upper keying bumper bracket
Bogie is stretched out in spring, the upper end of the action bars, and action bars is provided with locating groove, locating groove positioned at bogie top and set
There is locating ring.
5. electrically operated valve according to claim 1 opens and closes protection device, it is characterised in that：The side of the bogie is also set
Have on memory coding device, the memory coding device by rotating shaft rotatably provided with debugging memory gear, tooth is remembered in the debugging
The side of wheel be additionally provided with can with valve rod oscilaltion tooth row, the tooth row with debugging memory gear engagement be connected, the memory
Encoder is electrically connected with control board respectively.
6. electrically operated valve according to claim 5 opens and closes protection device, it is characterised in that:The upper keying bumper bracket correspondence
The position of tooth row is fixedly provided with tooth row locating slide sleeve, and the tooth row is arranged in tooth row locating slide sleeve.
7. electrically operated valve according to claim 1 opens and closes protection device, it is characterised in that:The drive device is motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408657.5A CN107013734B (en) | 2017-06-02 | 2017-06-02 | Electric valve opening and closing protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408657.5A CN107013734B (en) | 2017-06-02 | 2017-06-02 | Electric valve opening and closing protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013734A true CN107013734A (en) | 2017-08-04 |
| CN107013734B CN107013734B (en) | 2023-08-25 |
Family
ID=59451184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710408657.5A Active CN107013734B (en) | 2017-06-02 | 2017-06-02 | Electric valve opening and closing protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107013734B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618649A (en) * | 2017-08-24 | 2018-01-23 | 北京航空航天大学 | A kind of square exhaust apparatus of aerostatics zero pressure difference |
| CN107651159A (en) * | 2017-08-24 | 2018-02-02 | 北京航空航天大学 | A kind of aerostatics zero pressure difference circular gas-discharge unit |
| CN115325245A (en) * | 2022-10-13 | 2022-11-11 | 启东创开智能科技有限公司 | Valve execution structure for intelligent control |
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|---|---|---|---|---|
| EP1477714A1 (en) * | 2003-04-17 | 2004-11-17 | SAIA- Burgess GmbH Dresden | Actuator for valves |
| CN201096218Y (en) * | 2007-10-04 | 2008-08-06 | 林明祥 | Valve electric activator |
| CN201258999Y (en) * | 2008-08-01 | 2009-06-17 | 常州电站辅机总厂有限公司 | Adjustment straight-stroke valve actuator |
| CN104500824A (en) * | 2014-12-26 | 2015-04-08 | 沃尔达环境技术江苏股份有限公司 | Intelligent valve actuator |
| CN204784957U (en) * | 2015-07-09 | 2015-11-18 | 上海孚因流体动力设备有限公司 | A stop gear for keeping straight on journey electric actuator |
| CN106555903A (en) * | 2017-01-20 | 2017-04-05 | 李仁波 | A kind of actuator of valve |
| CN206770749U (en) * | 2017-06-02 | 2017-12-19 | 陈丽端 | Electrically operated valve opens and closes protection device |
-
2017
- 2017-06-02 CN CN201710408657.5A patent/CN107013734B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1477714A1 (en) * | 2003-04-17 | 2004-11-17 | SAIA- Burgess GmbH Dresden | Actuator for valves |
| CN201096218Y (en) * | 2007-10-04 | 2008-08-06 | 林明祥 | Valve electric activator |
| CN201258999Y (en) * | 2008-08-01 | 2009-06-17 | 常州电站辅机总厂有限公司 | Adjustment straight-stroke valve actuator |
| CN104500824A (en) * | 2014-12-26 | 2015-04-08 | 沃尔达环境技术江苏股份有限公司 | Intelligent valve actuator |
| CN204784957U (en) * | 2015-07-09 | 2015-11-18 | 上海孚因流体动力设备有限公司 | A stop gear for keeping straight on journey electric actuator |
| CN106555903A (en) * | 2017-01-20 | 2017-04-05 | 李仁波 | A kind of actuator of valve |
| CN206770749U (en) * | 2017-06-02 | 2017-12-19 | 陈丽端 | Electrically operated valve opens and closes protection device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618649A (en) * | 2017-08-24 | 2018-01-23 | 北京航空航天大学 | A kind of square exhaust apparatus of aerostatics zero pressure difference |
| CN107651159A (en) * | 2017-08-24 | 2018-02-02 | 北京航空航天大学 | A kind of aerostatics zero pressure difference circular gas-discharge unit |
| CN115325245A (en) * | 2022-10-13 | 2022-11-11 | 启东创开智能科技有限公司 | Valve execution structure for intelligent control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107013734B (en) | 2023-08-25 |
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