CN106594300A - Valve device capable of adjusting flow and opening and closing speed - Google Patents
Valve device capable of adjusting flow and opening and closing speed Download PDFInfo
- Publication number
- CN106594300A CN106594300A CN201710061488.2A CN201710061488A CN106594300A CN 106594300 A CN106594300 A CN 106594300A CN 201710061488 A CN201710061488 A CN 201710061488A CN 106594300 A CN106594300 A CN 106594300A
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- screw mandrel
- piston rod
- cavity
- 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
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
-
- 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
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
- F16K31/504—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating means being rotable, rising, and having internal threads which co-operate with threads on the outside of the valve body
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention discloses a valve device capable of adjusting flow and opening and closing speed. The valve device comprises a valve body, a valve cover, a piston rod module and a lead screw module, wherein a flow inlet, a flow outlet, a first connecting port and a second connecting port communicated with a valve cavity are formed in the valve body; the valve cover is mounted on the valve body; an upper valve cavity is arranged in the valve cover; the first connecting port and the flow outlet are respectively communicated with the upper valve cavity; the piston module includes a piston and a piston rod; the lead screw module includes a protective cover, a lead screw and a lead screw connector; and a driving motor is mounted on the lead screw module to drive the lead screw to rotate. The opening and the closing of the valve can be controlled through the fluid pressure, so that the driving motor only needs lower torsion to realize opening and closing of the valve; the driving motor control and the intelligent control form a closed loop; the flow magnitude, the opening and closing speed and the opening and closing degree can be precisely returned and controlled; and the opening and closing speed can realize opening and closing within 1 S.
Description
Technical field：
The present invention relates to flow valve technical field, refers in particular to the valving of a kind of regulating flow quantity and switching speed.
Background technology：
Valve is used for adjusting and controlling flow, and valve is generally comprised：Valve body and piston rod, offer on valve body
Fluid inlet and flowexit, the traffic channel between fluid inlet and flowexit is carried out by the movement of piston rod it is closed,
General valve is all to adopt Electromagnetic Control, controls the movement of piston rod with electromagnetic assembly, realizes the opening and closing of valve.But, pass
The valve of system, the power of piston rod completely rely on solenoid-driven, and when the pressure in the valve pocket is too big, electromagnetic valve needs to provide
Very big power, can drive the movement of piston rod.And by Electromagnetic Drive, in the mobile range of regulating piston bar, i.e.,
There is certain deviation on the flow of control valve.
The content of the invention：
It is an object of the invention to overcome the deficiencies in the prior art, there is provided the valve of a kind of regulating flow quantity and switching speed
Device.
In order to solve above-mentioned technical problem, following technical proposals are present invention employs：A kind of regulating flow quantity and switch speed
The valving of degree, including：There is in one valve body, valve body valve pocket, the fluid inlet of connection valve pocket, flow are provided with valve body and are gone out
Mouth, the first connector and the second connector；One valve gap, valve gap are installed on valve body, and uuper valve chamber, the first connection are provided with valve gap
Mouth and flowexit are respectively communicated with uuper valve chamber；One piston rod assembly, including：Piston and the piston rod of promotion piston movement,
Piston carries out opening/closing to the traffic channel formed between uuper valve chamber and valve pocket；One screw component, screw component include：Protection
Cover, screw mandrel and screw mandrel adapter, the end of screw mandrel are connected with the upper end of piston rod by screw mandrel adapter, are pacified on screw component
Equipped with a motor, rotated with drive screw, be further driven to the movement of piston rod.
Furthermore, in above-mentioned technical proposal, will be separated to form in valve body by a longitudinal cavity wall in described valve body
First cavity and the second cavity, the first cavity and the second cavity are connected by uuper valve chamber；And first cavity connection fluid inlet and
First connector, the second cavity connection flowexit and the second connector, described traffic channel is by fluid inlet, the first chamber
The passage are linked to be by body, the first connector, uuper valve chamber, the second connector, the second cavity, flowexit.
Furthermore, in above-mentioned technical proposal, described valve gap is installed on the top of valve body, and uuper valve chamber will by piston
Uuper valve chamber is separated to form upper and lower, by the channel connection being opened at piston centre, piston rod between upper and lower
End effect in passage.
Furthermore, in above-mentioned technical proposal, the outer wall of described piston is close to the inwall of uuper valve chamber and is arranged, and in
Sealing ring is provided between the two.
Furthermore, in above-mentioned technical proposal, the lower end of described piston forms the convex of one to first connector protrusion
Rise, first seal is provided between the lower end of piston and the first connector, between the upper end of piston and the end of piston rod
It is provided with second seal.
Furthermore, in above-mentioned technical proposal, it is formed with described piston for first seal and the second sealing
The mounting groove that part is installed, first seal and second seal local are limited in mounting groove, are locally revealed in piston.
Furthermore, in above-mentioned technical proposal, the top of described valve gap offers a perforation, the upper end of piston rod from
Perforation is passed, and the 3rd sealing member is provided between perforated inner and piston rod.
Furthermore, in above-mentioned technical proposal, described protective cover is installed on the top of valve gap, and screw mandrel passes through a ball
Screw mandrel adapter is connected with the output shaft of motor, and the upper end of screw mandrel is fixedly installed in ball screw adapter.
Furthermore, in above-mentioned technical proposal, described ball screw adapter is in frame-type, and the bottom of framework is arranged
The upper end for having an installation portion, screw mandrel is fixed in installation portion, and the first rolling is provided between the both sides of framework and the inside of protective cover
Dynamic bearing；Described screw mandrel end is inserted in screw mandrel adapter, and the upper end of piston rod is also inserted in screw mandrel adapter, screw mandrel
End be connected in screw mandrel adapter with piston rod；The second rolling is provided between the inwall and piston rod of screw mandrel adapter
Bearing.
Furthermore, the thread on the first cavity of connection and top in above-mentioned technical proposal, is offered on described piston
Road.
After above-mentioned technical proposal, the present invention is had the advantages that compared with prior art：
1st, the present invention can be switched come control valve by the pressure of fluid so that motor only needs to very little torsion i.e.
The switch of achievable valve；
2nd, switching speed of the present invention by motor control valve, to realize fine adjustment uninterrupted；
3rd, the present invention is capable of achieving to form a closed loop, uninterrupted, switch with intelligentized control method by motor control
Speed and switch degree can accurate feedback and precise controls；Controlled by the rotating of motor, its switching speed can be in 1S
It is interior to realize switch.
Description of the drawings：
Fig. 1 is signal Fig. 1 of the present invention；
Fig. 2 is signal Fig. 2 of the present invention.
Specific embodiment：
With reference to specific embodiments and the drawings, the present invention is further described.
As shown in Fig. 1-2, the valving of regulating flow quantity and switching speed is included：Valve body 1, the valve being installed on valve body 1
The screw component 5 and motor 5 of lid 2, the piston rod assembly 3 being installed in valve gap and the driving movement of piston rod assembly 3.
Specifically, there is in described valve body 1 valve pocket 10, fluid inlet 11, the stream of connection valve pocket 10 in valve body 1, is provided with
Measure mouth 12, the first connector 13 and the second connector 14；The will be separated to form in valve body 1 by a longitudinal cavity wall in valve body 1
One cavity 101 and the second cavity 102, the first cavity 101 are connected by uuper valve chamber 20 with the second cavity 102；And first cavity 101
Connection fluid inlet 11 and the first connector 13, the connection flowexit 12 of the second cavity 102 and the second connector 14, enter flow
The 11, first cavity 101 of mouth, the first connector 13, uuper valve chamber 20, the second connector 14, the second cavity 102, flowexit 12 connect
Into a traffic channel.
Described valve gap 2 is installed on the top of valve body 1, is provided with uuper valve chamber 20, the first connector 13 and flow in valve gap 2
Outlet 12 is respectively communicated with uuper valve chamber 20, and uuper valve chamber 20 is separated to form top 201 and bottom by piston 31 by uuper valve chamber 20
202, connected by being opened in the passage 310 of 31 center of piston between top 201 and bottom 202, the end of piston rod 32 is made
For passage 310.
It is further opened with connecting the thread road 311 on the first cavity 101 and top 201 on described piston 31, thread road 311
Diameter is very little, is, between 0.2-3mm, to be set as 0.4mm here.
Described piston rod assembly 3 includes：Piston 31 and the piston rod 32 of the promotion movement of piston 31, piston 31 is to upper valve
The traffic channel formed between chamber 20 and valve pocket 10 carries out opening/closing；The outer wall of piston 31 is close to the inwall of uuper valve chamber 20 and is arranged,
And in sealing ring 6 is provided between the two, the lower end of piston 31 forms the projection 311 of the protrusion of one to first connector 13, in work
Be provided with first seal 7 between the lower end of plug 31 and the first connector 13, the upper end of piston 31 and the end of piston rod 32 it
Between be provided with second seal 8, the mounting groove installed for first seal 7 and second seal 8 is formed with piston 31, the
One sealing member 7 and 8 local of second seal are limited in mounting groove, are locally revealed in piston 31, are carried out sealing setting.
Described screw component 4 includes：Protective cover 41, screw mandrel 42 and screw mandrel adapter 43, the end of screw mandrel 42 passes through
Screw mandrel adapter 43 is connected with the upper end of piston rod 32, and a motor 5 is provided with screw component 4, with 42 turns of drive screw
It is dynamic, the movement of piston rod 32 is further driven to, the top of valve gap 2 offers a perforation 21, and the upper end of piston rod 32 is from perforation 21
Pass, inside perforation 21, the 3rd sealing member 9 is provided with and piston rod 32 between, protective cover 41 is installed on the top of valve gap 2, screw mandrel
42 are connected with the output shaft of motor 5 by a ball screw adapter 44, and the upper end of screw mandrel 32 is fixedly installed on ball wire
In rod connector 44, ball screw adapter 44 is in frame-type, and the bottom of framework is provided with an installation portion 441, screw mandrel 42 it is upper
End is fixed in installation portion 441, and the first rolling bearing 45, screw mandrel 42 are provided between the both sides of framework and the inside of protective cover 41
End is inserted in screw mandrel adapter 43, and the upper end of piston rod 32 is also inserted in screw mandrel adapter 43, the end of screw mandrel 42 with
Piston rod 32 connects in screw mandrel adapter 43；The second rolling is provided between the inwall and piston rod 32 of screw mandrel adapter 43
Bearing 46.First rolling bearing 45 and the second rolling bearing 46 can reduce friction.
Described motor 5 can be 8 not only motor or servomotors, be set as servomotor here.When in use,
Fluid in the direction of the arrow from fluid inlet 11 enter the first cavity 101 in, piston 31 piston rod 32 pressure effect under, piston
In the first connector 13, fluid can not flow out 31 bottom low pressure from the first connector 13, due to the pressure of servomotor, even if
Increase the Fluid pressure in the first cavity 101, piston 31 can not be pushed open.As shown in Figure 2, servomotor is rotated forward, and drives ball
Screw mandrel adapter 44 is rotated, and screw mandrel 42 is increased, and so as to drive piston rod 32 to rise, the lower end of piston rod 32 is left logical
Road 310, valve are opened, and fluid enters top 201 from passage 310, piston 31 under Fluid pressure effect on move, fluid is from first
Connector 13 behind bottom 202 flows into the second cavity 102 from the second connector 14, finally flows out from flowexit 12.Servo
Motor reversal, pulls ball screw adapter 44 to rotate, further moves down screw mandrel 42, so as to drive piston rod 32 to move down, living
32 lower end of stopper rod is resisted against at the opening of passage 310, makes top 201 closed, in the pressure of servomotor 5, moves down piston 31,
It is resisted against the first connector 13, valve closing.
By above-mentioned principle, realize the opening and closing of valve, during above-mentioned operation, need by valve closing when
Wait, when 32 lower end of piston rod is resisted against at the opening of passage 310, make top 201 closed, segment fluid flow is entered from thread road 311
In top 201, increase the pressure in top 201, then under the pressure effect of fluid itself so that 5 need of servomotor
Want very little torsion that piston rod 32 can be driven to continue to move down, be resisted against the first connector 13, realize valve closing.
And the displacement of piston rod 32 as screw component 4 is driven by servomotor 5, can be critically controlled,
As servomotor 5 just turns around, then a displacement A is moved on piston rod 32, rotate two and enclose, on piston rod, move two displacement A, it is living
The displacement of the movement of stopper rod 32 is equal to the displacement of the movement of piston 31, and the displacement of the movement of piston rod 32 is equal to the size of valve switch.
So, by servomotor 5, the speed of the size and valve opening and closing of valve can be controlled very precisely.
Certainly, the foregoing is only the specific embodiment of the present invention, not limiting the scope of the present invention, it is all according to
Equivalence changes or modification that construction, feature and principle described in scope of the present invention patent are done, all should be included in Shen of the present invention
Please be in the scope of the claims.
Claims (10)
1. the valving of regulating flow quantity and switching speed, it is characterised in that：Including：
There is in one valve body (1), valve body (1) fluid inlet that connection valve pocket (10) is provided with valve pocket (10), valve body (1)
(11), flowexit (12), the first connector (13) and the second connector (14)；
One valve gap (2), valve gap (2) are installed on valve body (1), are provided with uuper valve chamber (20), the first connector (13) in valve gap (2)
It is respectively communicated with uuper valve chamber (20) with the second connector (14)；
One piston rod assembly (3), including：Piston (31) and the piston rod (32) for promoting piston (31) mobile, piston (31) are right
The traffic channel formed between uuper valve chamber (20) and valve pocket (10) carries out opening/closing；
One screw component (4), screw component (4) include：Protective cover (41), screw mandrel (42) and screw mandrel adapter (43), screw mandrel
(42) end is connected with the upper end of piston rod (32) by screw mandrel adapter (43), and screw component is provided with a driving on (4)
Motor (5), is rotated with drive screw (42), is further driven to the movement of piston rod (32).
2. the valving of regulating flow quantity according to claim 1 and switching speed, it is characterised in that：Described valve body
(1) the first cavity (101) and the second cavity (102), the first cavity will be separated to form in valve body (1) by a longitudinal cavity wall in
(101) with the second cavity (102) is connected by uuper valve chamber (20)；And first cavity (101) connection fluid inlet (11) and first
Connector (13), the second cavity (102) connection flowexit (12) and the second connector (14), described traffic channel are by flowing
Amount import (11), the first cavity (101), the first connector (13), uuper valve chamber (20), the second connector (14), the second cavity
(102), the passage is linked to be by flowexit (12).
3. the valving of regulating flow quantity according to claim 1 and switching speed, it is characterised in that：Described valve gap
(2) be installed on the top of valve body (1), uuper valve chamber (20) by piston (31) by uuper valve chamber (20) be separated to form top (201) and
Bottom (202), is connected by being opened in the passage (310) of piston (31) center between top (201) and bottom (202), living
The end effect of stopper rod (32) is in passage (310).
4. the valving of regulating flow quantity according to claim 1 and switching speed, it is characterised in that：Described piston
(31) outer wall is close to the inwall of uuper valve chamber (20) and is arranged, and in being provided with sealing ring (6) between the two.
5. the valving of regulating flow quantity according to claim 1 and switching speed, it is characterised in that：Described piston
(31) lower end forms the projection (311) that one to first connector (13) protrudes, in the lower end of piston (31) and the first connector
(13) first seal (7) is provided between, second is provided between the upper end of piston (31) and the end of piston rod (32) close
Sealing (8).
6. the valving of regulating flow quantity according to claim 5 and switching speed, it is characterised in that：Described piston
(31) mounting groove installed for first seal (7) and second seal (8), first seal (7) and second are formed with
Sealing member (8) is locally limited in mounting groove, is locally revealed in piston (31).
7. the valving of regulating flow quantity according to claim 1 and switching speed, it is characterised in that：Described valve gap
(2) top offers a perforation (21), and the upper end of piston rod (32) is passed from perforation (21), bore a hole (21) inside and piston rod
(32) the 3rd sealing member (9) is provided between.
8. the valving of regulating flow quantity according to claim 1 and switching speed, it is characterised in that：Described protection
Cover (41) is installed on the top of valve gap (2), output of the screw mandrel (42) by a ball screw adapter (44) and motor (5)
Axle connects, and the upper end of screw mandrel (32) is fixedly installed in ball screw adapter (44).
9. the valving of regulating flow quantity according to claim 8 and switching speed, it is characterised in that：Described ball
In frame-type, the bottom of framework is provided with an installation portion (441) to screw mandrel adapter (44), and installation is fixed in the upper end of screw mandrel (42)
In portion (441), the first rolling bearing (45) between the inside of the both sides of framework and protective cover (41), is provided with；
Described screw mandrel (42) end is inserted in screw mandrel adapter (43), and the upper end of piston rod (32) is also inserted in screw mandrel connection
In device (43), the end of screw mandrel (42) is connected in screw mandrel adapter (43) with piston rod (32)；In screw mandrel adapter (43)
The second rolling bearing (46) is provided between inwall and piston rod (32).
10. the valving of regulating flow quantity according to claim 1 and switching speed, it is characterised in that：Described work
The thread road (311) of the first cavity of connection (101) and top (201) is offered on plug (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710061488.2A CN106594300A (en) | 2017-01-26 | 2017-01-26 | Valve device capable of adjusting flow and opening and closing speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710061488.2A CN106594300A (en) | 2017-01-26 | 2017-01-26 | Valve device capable of adjusting flow and opening and closing speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106594300A true CN106594300A (en) | 2017-04-26 |
Family
ID=58586462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710061488.2A Pending CN106594300A (en) | 2017-01-26 | 2017-01-26 | Valve device capable of adjusting flow and opening and closing speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106594300A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882623A (en) * | 2017-12-06 | 2019-06-14 | 深圳市曼恩斯特科技有限公司 | Accurate flow-limiting valve and Pneumatic three-way valve |
| CN111059290A (en) * | 2018-10-16 | 2020-04-24 | 深圳市美好创亿医疗科技有限公司 | Throttling device and flow regulating system with same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090261283A1 (en) * | 2006-08-25 | 2009-10-22 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Electromagnetic Valve Which can be Operated with Different Operating Voltages and Method for its Production |
| CN103791101A (en) * | 2012-11-02 | 2014-05-14 | 宁波开灵气动元件制造有限公司 | Pilot type anti-corrosion electromagnetic valve |
| CN204512450U (en) * | 2015-03-20 | 2015-07-29 | 江西三川水表股份有限公司 | A kind of Intelligent water meter control valve |
| CN204716997U (en) * | 2015-06-19 | 2015-10-21 | 环球阀门集团有限公司 | The explosion-proof Emergeny Cutoff Valves of guide's direct acting Normally closed type |
| CN206972923U (en) * | 2017-01-26 | 2018-02-06 | 黄嘉旻 | The valving of regulating flow quantity and switching speed |
-
2017
- 2017-01-26 CN CN201710061488.2A patent/CN106594300A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090261283A1 (en) * | 2006-08-25 | 2009-10-22 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Electromagnetic Valve Which can be Operated with Different Operating Voltages and Method for its Production |
| CN103791101A (en) * | 2012-11-02 | 2014-05-14 | 宁波开灵气动元件制造有限公司 | Pilot type anti-corrosion electromagnetic valve |
| CN204512450U (en) * | 2015-03-20 | 2015-07-29 | 江西三川水表股份有限公司 | A kind of Intelligent water meter control valve |
| CN204716997U (en) * | 2015-06-19 | 2015-10-21 | 环球阀门集团有限公司 | The explosion-proof Emergeny Cutoff Valves of guide's direct acting Normally closed type |
| CN206972923U (en) * | 2017-01-26 | 2018-02-06 | 黄嘉旻 | The valving of regulating flow quantity and switching speed |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882623A (en) * | 2017-12-06 | 2019-06-14 | 深圳市曼恩斯特科技有限公司 | Accurate flow-limiting valve and Pneumatic three-way valve |
| CN111059290A (en) * | 2018-10-16 | 2020-04-24 | 深圳市美好创亿医疗科技有限公司 | Throttling device and flow regulating system with same |
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Application publication date: 20170426 |
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