CN110332366A - Valve control device - Google Patents
Valve control device Download PDFInfo
- Publication number
- CN110332366A CN110332366A CN201910661609.6A CN201910661609A CN110332366A CN 110332366 A CN110332366 A CN 110332366A CN 201910661609 A CN201910661609 A CN 201910661609A CN 110332366 A CN110332366 A CN 110332366A
- Authority
- CN
- China
- Prior art keywords
- adjusting rod
- baffle
- connector
- driving wheel
- wheel group
- 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.)
- Pending
Links
- 238000003780 insertion Methods 0.000 claims abstract description 10
- 230000037431 insertion Effects 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 6
- 230000001143 conditioned effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
A kind of valve control device disclosed in this invention, including baffle, adjusting rod, the motor for being fixed on baffle upper side, there is driving wheel group below baffle, there is the connector connecting with valve management bar, the shaft of motor is fixed after baffle with the main driving wheel of driving wheel group below the output wheel of driving wheel group；The lower end of adjusting rod is equipped with key axis, and key axis is connect after successively baffle and the perforation of the output wheel of driving wheel group with the movable detent of connector, in the key block insertion driving wheel group of key axis in the perforation inner sidewall keyway of output wheel；Reset spring is cased on adjusting rod, the both ends of reset spring are contradicted with the upper end step of adjusting rod and baffle upper side respectively；Adjusting rod moves down, and after the key block on adjusting rod is separated with the keyway on output wheel, can be manually rotated adjusting rod, connector is promoted to rotate, to be manually controlled the valve switch being connected with connector.It is acted fastly when manually controlling, and light and handy, flexible.
Description
Technical field
The present invention relates to a kind of automatic and manual control valve technical field, especially a kind of valve control devices.
Background technique
Existing automatic and manual control valve valve control device is typically employed in the equipment such as Remote control valve in the market
On, when valve arrangement is in the case where power failure or failure, it can play the role of opening manually, close valve, and adopt at present
It can by arrangement of clutch setting at the driven wheel at driving wheel in the driving wheel group of automatic control and adjustment bar rotation
Manually control adjusting rod rotation manual overvide, the notification number as disclosed in Chinese patent be CN2516780Y it is manual,
Motor combined valve control device, the more smooth convenience under electric operation control, but manual overvide and output
Take turns (connector connecting with valve switch is installed on output wheel) between there is also the gear drive of a distance so that
The torsion for controlling manual overvide increases, and causes control very not flexible, light and handy.
Summary of the invention
The one kind designed the purpose of the present invention is to solve the deficiency of above-mentioned technology acts fastly when manually controlling, and
And light and handy, flexible valve control device.
Valve control device designed by the present invention, including baffle, adjusting rod, the motor for being fixed on baffle upper side,
It is characterized in that there is driving wheel group below baffle, there is the connection connecting with valve management bar below the output wheel of driving wheel group
The shaft of part, motor is fixed after baffle with the main driving wheel of driving wheel group；The lower end of adjusting rod is equipped with key axis, and key axis runs through
It is successively connect after baffle and the perforation of the output wheel of driving wheel group with the movable detent of connector, the key block of key axis is embedded in driving wheel group
In the perforation inner sidewall keyway of middle output wheel；Be cased with reset spring on adjusting rod, the both ends of reset spring respectively with adjusting rod
Upper end step and baffle upper side contradict；Adjusting rod moves down, after the key block on adjusting rod is separated with the keyway on output wheel, manually
Rotation adjusting lever promotes connector to rotate, to be manually controlled the valve switch being connected with connector.
It further preferably, further include limit plate and two limit switches, limit plate is fixed on adjusting rod；Two limits are opened
Pass is spaced apart from each other setting and is fixed on baffle, and limit plate is located between two limit switches；The induction contact of limit switch with
Limit plate contact.
Further preferably, limit plate is L-type limit plate.
It further preferably, further include the mounting plate with arc long lumbar hole, mounting plate is fixed on the upper side of baffle, and L-type
For the transverse part of limit plate between baffle and mounting plate, the upper end of adjusting rod sequentially passes through baffle, L-type limit plate transverse part
Hole and mounting plate are connected and fixed between the middle part of sliding channel of adjusting rod and the hole side wall of L-type limit plate transverse part by retaining structure,
The lower end of adjusting rod has limited step, and limited step is located at the lower section of baffle；Two limit switches are fixed on arc on mounting plate
The both ends of shape long lumbar hole；Arc long lumbar hole, and the induction contact pad with limit switch are run through in longitudinal portion of L-type limit plate.
Further preferably, be caught in retainer ring in the upper clip portion annular groove of adjusting rod, the both ends of reset spring respectively with retainer ring
It is contradicted with mounting plate.
It further preferably, further include shell, the upper port of shell is internal after being bonded fixation with the downside of baffle to be formed
Inner cavity, driving wheel group are placed in inner cavity, and connector is rotatably located in the mounting hole of housing bottom.
Further preferably, the middle part in inner cavity forms upper cavity and lower chamber by setting partition, and installation passes in upper cavity
Driving wheel group, key axis are connect after the through-hole of partition with the movable detent of connector.
Further preferably, detent has positioning sleeve, the bottom end of connector in the mounting hole of housing bottom and in the through-hole of partition
Be inserted into housing bottom positioning sleeve in, top have square；The bottom end of key axis has the square groove with square Corresponding matching,
Bottom end square groove correspondence after the positioning sleeve of partition is placed on square；The bottom end of connector is equipped with detent slot.
Further preferably, detent has positioning sleeve, the bottom end of connector in the mounting hole of housing bottom and in the through-hole of partition
Be inserted into housing bottom positioning sleeve in, top have square groove；The bottom end of key axis has the square with square groove Corresponding matching,
Bottom end is in the corresponding insertion square groove of square after the positioning sleeve of partition；The bottom end of connector is equipped with detent slot.
Further preferably, driving wheel group includes multiple transmission gears and an output gear, multiple transmission gears it is first
The shaft of driving gear and motor is fixed, and output gear is engaged with driven gear at the end of multiple transmission gears；Output gear
Perforation be conditioned the lower end of bar and run through, inner sidewall has keyway.
Valve control device designed by the present invention, it is reasonable in design, and utilize and (pacify on output wheel in output wheel
Equipped with the connector being connect with valve switch) on the clutch switching mechanism that manually controls and automatically control is set (automatically and manually
Switching), and the clutch switching mechanism is to be detached from driving pulley assembly to carry out control valve exploitation manually controlling, so that hand
Dynamic control is light and handy flexible, promotes service performance.
Detailed description of the invention
Fig. 1 is the overall structure diagram of embodiment 1；
Fig. 2 is the schematic diagram of the section structure (one) in the key block insertion keyway on the adjusting rod of embodiment 1；
Fig. 3 is the schematic diagram of the section structure (two) in the key block insertion keyway on the adjusting rod of embodiment 1；
Fig. 4 is the schematic diagram of the section structure after the adjusting rod of embodiment 1 moves down；
Fig. 5 is the gear drive group structural schematic diagram of embodiment 1；
Fig. 6 is the structural schematic diagram of the housing bottom surface of embodiment 1；
Fig. 7 is the gear of embodiment 1 and the configuration schematic diagram of adjustment bar.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
Embodiment 1:
As shown in Fig. 1-Fig. 7, valve control device described in the present embodiment, including baffle 1, adjusting rod 3, it is fixed on gear
The motor 2 of 1 upper side of plate has driving wheel group 5 below baffle 1, has below the output wheel 51 of driving wheel group 5 and valve management
The shaft of the connector 6 of bar connection, motor 2 is fixed after baffle 1 with the main driving wheel of driving wheel group 5；The lower end of adjusting rod 3
Equipped with key axis 31, key axis 31 after successively baffle 1 and the perforation of the output wheel of driving wheel group 5 51 512 with the movable card of connector 6
Position connection, the key block 312 of key axis 31 are embedded in driving wheel group 5 in the 512 inner sidewall keyway 513 of perforation of output wheel 51；Adjusting rod 3
On be cased with reset spring 4, the both ends of reset spring 4 are contradicted with the upper end step 34 of adjusting rod 3 and 1 upper side of baffle respectively；It adjusts
Pole 3 moves down, and after the key block 312 on adjusting rod 3 is separated with the keyway 513 on output wheel 51, can be manually rotated adjusting rod 3, promotes
Connector 6 rotates, to be manually controlled the valve switch being connected with connector 6.
After the switch member of the working principle of above structure, connector and valve is connected and fixed, in Electronic control, motor is logical
It electrically activates and drives driving wheel group rotation to drive output wheel to rotate, to pass through the key block phase interworking of keyway and key axis in adjusting rod
It closes and is fixedly linked under the action of fixing with output wheel, output wheel rotation is promoted to drive adjusting rod rotation, adjusting rod rotation drive connects
Fitting is rotated with motor-operated control valve door switch；When manually controlling, manual depression adjusting rod, in the key block and output wheel on adjusting rod
Keyway separation after, can be manually rotated adjusting rod, promote connector to rotate with hand control valve door switch；In spring after hand release
Under the action of adjusting rod move up automatically, and move up rear key axis and still connect with the movable detent of connector, and key block continue it is embedding
Enter to electronic control operation can be carried out in keyway.
It further include limit plate 7 and two limit switches 10 in the present embodiment, limit plate 7 is fixed on adjusting rod 3；Two
Limit switch 10 is spaced apart from each other setting and is fixed on baffle 1, and limit plate 7 is located between two limit switches 10；Limit switch
10 induction contact 101 is contacted with limit plate 7.Its structure to limit the rotation of adjusting rod by two limit switches
In addition position can also set a limit switch to receiving valve closing signal, another limit switch is set as receiving valve opening
Signal, in order to electric control valve.
It further include the mounting plate 12 with arc long lumbar hole 121 in the present embodiment, limit plate 7 is L-type limit plate；Mounting plate
12 are fixed on the upper side of baffle 1, and the transverse part of L-type limit plate is between baffle 1 and mounting plate 12, adjusting rod 3 it is upper
End sequentially passes through baffle 1, the hole of 7 transverse part of L-type limit plate and mounting plate 12, and the middle part of sliding channel and L-type limit plate of adjusting rod 3 are horizontal
It being connected and fixed between the hole side wall in portion by retaining structure, the lower end of adjusting rod 3 has a limited step 33, and limited step 33
In the lower section of baffle 1；Two limit switches 20 are fixed on the both ends of arc long lumbar hole 232 on mounting plate；L-type limit plate 7 is indulged
Run through arc long lumbar hole 121 to portion, and is contacted with the induction contact 101 of limit switch 10.Retaining structure can be adjusting rod
Middle part of sliding channel has the parallel surface 32 for being parallel to each other and being bonded with the waist hole plane of L-type limit plate transverse part, parallel surface lower end
With limited step 33, limited step is located at the lower section of baffle, or also can be the retaining structure of slot and convex block phase interworking.It is tied
Structure design is rationally, compact-sized reliable.
In the present embodiment, retainer ring 36, the both ends difference of reset spring 4 have been caught in the upper clip portion annular groove 35 of adjusting rod 3
It is contradicted with retainer ring and mounting plate.Its structure assembles also more convenient convenient for manufacture.
It further include shell 8, the upper port of shell 8 internal shape after being bonded fixation with the downside of baffle in the present embodiment
At inner cavity 82, driving wheel group 5 is placed in inner cavity 82, and connector 6 is rotatably located in the mounting hole 84 of 8 bottom of shell；Inner cavity
Middle part in 82 forms upper cavity 82 and lower chamber 83 by setting partition 81, installs driving wheel group in upper cavity, key axis 31 passes through
It is connect after wearing the through-hole of partition with the movable detent of connector.Its is reasonable in design, so that inner body is protected
Effect, and keep structure more compact.
Shell 8 is designed as by two lantern rings, 13, partitions 81 and a bottom plate 14 for the ease of inner body assembling
Mutually it is spliced to form, and the upper edge of a lantern ring and baffle form upper cavity, the difference of two sides up and down of partition after being fixedly linked
It is fixedly linked with the lower opening's edge of a lantern ring and the upper edge of another lantern ring, and the lower opening's edge of the upper side of bottom plate and another lantern ring is solid
Surely it is connected to form lower chamber.
In the present embodiment, detent has positioning sleeve 9 in the mounting hole 84 of 8 bottom of shell and in the through-hole 811 of partition 81, connects
Part 6 bottom end insertion 8 bottom of shell positioning sleeve 9 in, top have square 61；The bottom end of key axis 31 has and square 61
The square groove 311 of Corresponding matching, bottom end correspondence of square groove 311 after the positioning sleeve 9 of partition 81 are placed on square 61；Connector 6
Bottom end be equipped with detent slot 62.Its structure makes the spin stabilization of adjusting rod and connection reliable by positioning sleeve, and adjusting rod
Also more convenient, promotion packaging efficiency solid and reliable to connecting is docked with connector.
In the present embodiment, driving wheel group 5 includes multiple transmission gears 52 and an output gear 511, multiple transmission gears
52 first driving gear 521 and the shaft of motor 2 is fixed, output gear 511 with it is driven at the end of multiple transmission gears 52
Gear 522 engages；The lower end that the perforation 512 of output gear 511 is conditioned bar 3 is run through, and inner sidewall has keyway 513.It is adopted
Without using to gear set transmission gear is less likely to be damaged when being driven, and being manually controlled with gear set.
Embodiment 2:
Valve control device described in the present embodiment, general configuration is same as Example 1, but different from embodiment 1
, detent has positioning sleeve 9 in the mounting hole of 8 bottom of shell and in the through-hole 811 of partition 81, and shell is inserted into the bottom end of connector 6
In the positioning sleeve 9 of 1 bottom of body, top have square groove；The bottom end of key axis has the square with square groove Corresponding matching, bottom end
In the corresponding insertion square groove of square after the positioning sleeve of partition；The bottom end of connector is equipped with detent slot.Its structure passes through positioning sleeve
So that adjusting rod and the spin stabilization of connection are reliable, and adjusting rod docked with connector it is also more convenient, to connect it is firm can
It leans on, promotes packaging efficiency (not shown).
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all that there is skill identical or similar to the present application
Art scheme, is within the scope of the present invention.
Claims (10)
1. a kind of valve control device, including baffle, adjusting rod, the motor for being fixed on baffle upper side, which is characterized in that baffle
Lower section has driving wheel group, has the connector connecting with valve management bar, the shaft of motor below the output wheel of driving wheel group
It is fixed after baffle with the main driving wheel of driving wheel group；The lower end of adjusting rod is equipped with key axis, and key axis is through successively baffle and biography
It is connect after the output wheel perforation of driving wheel group with the movable detent of connector, output wheel wears in the key block insertion driving wheel group of key axis
In the inner sidewall keyway of hole；Be cased with reset spring on adjusting rod, the both ends of reset spring respectively with the upper end step of adjusting rod and gear
Plate upper side contradicts；Adjusting rod moves down, and after the key block on adjusting rod is separated with the keyway on output wheel, can be manually rotated adjusting rod,
Connector is promoted to rotate, to be manually controlled the valve switch being connected with connector.
2. valve control device according to claim 1, which is characterized in that it further include limit plate and two limit switches,
Limit plate is fixed on adjusting rod；Two limit switches are spaced apart from each other setting and are fixed on baffle, and limit plate is located at two limits
Between bit switch；The induction contact of limit switch is contacted with limit plate.
3. valve control device according to claim 2, which is characterized in that limit plate is L-type limit plate.
4. valve control device according to claim 3, which is characterized in that it further include the mounting plate with arc long lumbar hole,
Mounting plate is fixed on the upper side of baffle, and the transverse part of L-type limit plate is between baffle and mounting plate, the upper end of adjusting rod
Sequentially pass through baffle, the hole of L-type limit plate transverse part and mounting plate, middle part of sliding channel and the L-type limit plate transverse part of adjusting rod
It is connected and fixed between the side wall of hole by retaining structure, the lower end of adjusting rod has limited step, and limited step is located under baffle
Side；Two limit switches are fixed on the both ends of arc long lumbar hole on mounting plate；The long waist of arc is run through in longitudinal portion of L-type limit plate
Hole, and the induction contact pad with limit switch.
5. valve control device according to claim 4, which is characterized in that be caught in the upper clip portion annular groove of adjusting rod
Retainer ring, the both ends of reset spring are contradicted with retainer ring and mounting plate respectively.
6. valve control device according to claim 1, which is characterized in that further include shell, the upper port of shell along with
Internal after the downside fitting of baffle is fixed to form inner cavity, driving wheel group is placed in inner cavity, and connector is rotatably located in shell
In the mounting hole of bottom.
7. valve control device according to claim 6, which is characterized in that the middle part in inner cavity is formed by the way that partition is arranged
Upper cavity and lower chamber, upper cavity is interior to install driving wheel group, and key axis connects after the through-hole of partition with the movable detent of connector
It connects.
8. valve control device according to claim 6, which is characterized in that logical with partition in the mounting hole of housing bottom
Detent has a positioning sleeve in hole, in the positioning sleeve of the bottom end insertion housing bottom of connector, top there is square；The bottom of key axis
The square groove having with square Corresponding matching is held, bottom end square groove correspondence after the positioning sleeve of partition is placed on square；Connector
Bottom end be equipped with detent slot.
9. valve control device according to claim 6, which is characterized in that logical with partition in the mounting hole of housing bottom
Detent has a positioning sleeve in hole, in the positioning sleeve of the bottom end insertion housing bottom of connector, top there is square groove；The bottom of key axis
The square having with square groove Corresponding matching is held, bottom end is in the corresponding insertion square groove of square after the positioning sleeve of partition；Connector
Bottom end be equipped with detent slot.
10. -9 described in any item valve control devices according to claim 1, which is characterized in that driving wheel group includes multiple biographies
Moving gear and an output gear, the first driving gear of multiple transmission gears and the shaft of motor are fixed, output gear and more
Driven gear engages at the end of a transmission gear；The lower end that the perforation of output gear is conditioned bar is run through, and inner sidewall has
Keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661609.6A CN110332366A (en) | 2019-07-22 | 2019-07-22 | Valve control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661609.6A CN110332366A (en) | 2019-07-22 | 2019-07-22 | Valve control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110332366A true CN110332366A (en) | 2019-10-15 |
Family
ID=68147059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910661609.6A Pending CN110332366A (en) | 2019-07-22 | 2019-07-22 | Valve control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110332366A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123086A (en) * | 2019-11-26 | 2020-05-08 | 航天东方红卫星有限公司 | Synchronous release tool for satellite disconnecting switch |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075289U (en) * | 1990-10-13 | 1991-04-17 | 罗章荣 | Electric four-way valve |
| CN201496645U (en) * | 2009-05-27 | 2010-06-02 | 黎明 | Electric valve executer manual and electric switching device |
| JP2014063479A (en) * | 2012-08-31 | 2014-04-10 | Tokiko Techno Kk | Pressure control device |
| CN204042136U (en) * | 2014-08-22 | 2014-12-24 | 黄亮亮 | Electric valve |
| CN205173641U (en) * | 2015-12-09 | 2016-04-20 | 常州诚磊精密机械有限公司 | Manual electronic integral type actuating mechanism |
| CN207830410U (en) * | 2017-12-13 | 2018-09-07 | 苏州万龙电气集团股份有限公司 | A kind of clutch of segmented spline |
| CN108591576A (en) * | 2018-05-21 | 2018-09-28 | 天地（常州）自动化股份有限公司 | Mining circle flame-proof type electric ball valve |
| CN109519587A (en) * | 2019-01-28 | 2019-03-26 | 深圳中科捷飞科技有限公司 | From limit switches headstock gear |
| CN208750112U (en) * | 2018-08-13 | 2019-04-16 | 烟台金富士水墨有限公司 | A kind of acid and alkali-resistance ink prepares electric device for valve |
| CN210484770U (en) * | 2019-07-22 | 2020-05-08 | 台州舟浩阀门科技有限公司 | Valve control device |
-
2019
- 2019-07-22 CN CN201910661609.6A patent/CN110332366A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075289U (en) * | 1990-10-13 | 1991-04-17 | 罗章荣 | Electric four-way valve |
| CN201496645U (en) * | 2009-05-27 | 2010-06-02 | 黎明 | Electric valve executer manual and electric switching device |
| JP2014063479A (en) * | 2012-08-31 | 2014-04-10 | Tokiko Techno Kk | Pressure control device |
| CN204042136U (en) * | 2014-08-22 | 2014-12-24 | 黄亮亮 | Electric valve |
| CN205173641U (en) * | 2015-12-09 | 2016-04-20 | 常州诚磊精密机械有限公司 | Manual electronic integral type actuating mechanism |
| CN207830410U (en) * | 2017-12-13 | 2018-09-07 | 苏州万龙电气集团股份有限公司 | A kind of clutch of segmented spline |
| CN108591576A (en) * | 2018-05-21 | 2018-09-28 | 天地（常州）自动化股份有限公司 | Mining circle flame-proof type electric ball valve |
| CN208750112U (en) * | 2018-08-13 | 2019-04-16 | 烟台金富士水墨有限公司 | A kind of acid and alkali-resistance ink prepares electric device for valve |
| CN109519587A (en) * | 2019-01-28 | 2019-03-26 | 深圳中科捷飞科技有限公司 | From limit switches headstock gear |
| CN210484770U (en) * | 2019-07-22 | 2020-05-08 | 台州舟浩阀门科技有限公司 | Valve control device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123086A (en) * | 2019-11-26 | 2020-05-08 | 航天东方红卫星有限公司 | Synchronous release tool for satellite disconnecting switch |
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