CN206682064U - A kind of advanced digital valve - Google Patents
A kind of advanced digital valve Download PDFInfo
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- CN206682064U CN206682064U CN201720502226.0U CN201720502226U CN206682064U CN 206682064 U CN206682064 U CN 206682064U CN 201720502226 U CN201720502226 U CN 201720502226U CN 206682064 U CN206682064 U CN 206682064U
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Abstract
The utility model discloses a kind of advanced digital valve, the advanced digital valve includes central controller；Guide valve blocks；Left valve element；Right valve element；Main valve body；Left main valve plug；Right main valve plug；The central controller is arranged on the guide valve blocks upper end；The guide valve blocks are arranged on the main valve body upper end；The left valve element is arranged on the left end in the guide valve blocks；The right valve element is arranged on the right-hand member in the guide valve blocks；The left main valve plug is located at the left end in the main valve body；The right main valve plug is located at the right-hand member in the main valve body, is the characteristics of the utility model：The left valve element, the right valve element in the pilot valve is high by SUPT motor independent controls, fast response time, control accuracy；By built in pressure sensor, displacement transducer, the control model such as spool displacement control, system pressure control, flow control can be carried out, so as to the operating mode used according to actual platform, it is determined that optimal double spool combination control program.
Description
Technical field
Hydraulic buttery valve technical field is the utility model is related to, particularly a kind of fast response time, control accuracy is high and controls
Molding formula can separate configurations, the advanced digital valve of flexible combination.
Background technology
A kind of important valve class of the electro hydraulic valve as hydraulic drive and control system, is mainly made up of pilot valve and main valve,
Pilot valve is generally magnetic valve reversal valve, mainly enters main valve oil circuit by commutating to change.In recent years, for the control obtained
Effect, people commutate pilot valve digital valve by common solenoid directional control valve, so as to develop into electrohydraulic digital valve.It can be direct
Enter line interface with computer, it is not necessary to D/A converter, with proportioning valve, servo valve mutually this, such valve arrangement is simple, manufacturability
It is good, reproducible, stable and reliable in work, because it combines closely computer and hydraulic technique, thus there is wide application
Prospect.
Traditional digital valve control mode is typically main using Incremental control and pulse width modulation controlled method, Incremental control
Digital type pulse signal Driving Stepping Motor is produced by control system to rotate, then is revolved stepper motor by mechanical switching device
Transhipment turn is changed to linear motion, so as to be moved with movable valve plug, so as to control and adjust hydraulic parameter.But because stepper motor has
Have compared with large rotating inertia, after being mechanically connected with hydraulic valve, inertia increase, intrinsic frequency further reduces, therefore frequency response performance
It is very limited, or even high frequency step-out phenomenon occurs.
Pulse-width modulation digital valve is generally high-speed switch type digital valve, and the pulsewidth for mainly adjusting input signal carrys out control valve
Push And Release and open and time span, so as to reach the control direction of liquid stream, flow and the purpose of pressure.But it controls essence
Spend low, control model is single and structure is complex, is used generally as single digital valve, seldom does pilot valve use.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of fast response time, control accuracy height and control model
Can separate configurations, the advanced digital valve of flexible combination.
To achieve the above object, the utility model employs following technical schemes：During a kind of advanced digital valve includes
Entreat controller；Guide valve blocks；Left valve element；Right valve element；Main valve body；Left main valve plug；Right main valve plug；
The central controller is arranged on the guide valve blocks upper end；
The guide valve blocks are arranged on the main valve body upper end；
The left valve element is arranged on the left end in the guide valve blocks；
The right valve element is arranged on the right-hand member in the guide valve blocks；
The left main valve plug is located at the left end in the main valve body；
The right main valve plug is located at the right-hand member in the main valve body；
Wherein, symmetrical structure centered on the guide valve blocks, left spool bore and right spool bore by different-diameter hole group
Into, and horizontal symmetrical is distributed, endoporus one and endoporus two are symmetrical, and endoporus three is vertical with endoporus four to be communicated, endoporus five and endoporus
Six vertically communicate, the central point of circular hole one and left spool bore feature holes T1 connecting hole, the right spool bore feature holes T1'
Connecting hole is located on same center line, and circular hole two is vertical with the feature holes B1 in the left spool bore to be communicated, circular hole three with it is described
Feature holes B1' in right spool bore is vertically communicated, endoporus seven by asphalt channel respectively with the feature holes P1 in left spool bore, the right side
Feature holes P1' in spool bore is communicated；
The left valve element is made up of axle one and axle two, and its axis two forms gap with the left spool bore in the guide valve blocks
Coordinate；
The right valve element has identical physical dimension with the left valve element；
Symmetrical structure centered on the main valve body, wherein, left main valve core bore is made up of the circular hole of different-diameter, right main valve plug
Hole and left main valve core bore are symmetrical, and structure is identical, and hydraulic fluid port B communicates by the way that center-aisle is vertical with left main valve core bore, hydraulic fluid port A
Being communicated by the way that center-aisle is vertical with right main valve core bore, oilhole P' is communicated by the endoporus seven in guide valve blocks described in Kong Siyu,
Oilhole T communicates by the way that asphalt channel is vertical with the feature holes T2 in the left main valve core bore, passes through asphalt channel and the right master
Feature holes T2' in spool bore is vertically communicated, and oilhole P is vertical with the feature holes P2 in the left main valve core bore by asphalt channel
Communicate, communicated by the way that asphalt channel is vertical with the feature holes P2' in the right main valve core bore, left main valve core bore is hung down described in Kong Yiyu
Directly communicate, right main valve core bore is vertically communicated described in Kong Qiyu, and Kong Bayu oilholes P is vertically communicated；
The left main valve plug profile forms gap by not formed the axle of diameter or not, with the left main valve core bore of the main valve body and matched somebody with somebody
Close；
The right main valve plug and the left main valve plug have an identical physical dimension, and with the right main valve plug of the main valve body
Hole forms gap and coordinated.
Preferred scheme, in addition to left SUPT motors, right SUPT motors, wherein, the left SUPT motor shafts and the left valve
Core is connected, the left spool bore being inserted into the guide valve blocks, and the left SUPT motors are fixed on into the guide valve blocks
On, equally the right SUPT motor shafts are connected with the right valve element, the right spool bore being inserted into the guide valve blocks,
The right SUPT motors are fixed on the guide valve blocks.
Preferred scheme, in addition to left dislocation sensor, right displacement transducer, wherein, the left dislocation sensor upper end with
Endoporus three in the guide valve blocks is engaged, and its wire is passed by the endoporus four in the guide valve blocks, and its lower end is stretched into
Endoporus in the left main valve plug, equally, the right displacement transducer upper end are engaged with the endoporus six in the guide valve blocks,
Its wire is passed by the endoporus five in the guide valve blocks, and its lower end is stretched into the right main valve plug top endoporus.
Preferred scheme, in addition to left pressure sensor, right pressure sensor, lower pressure sensor, wherein, left pressure sensing
Device is engaged with the hole two in the main valve body, and its wire is passed by hole two, equally, the right pressure sensor and the master
Hole six in valve body is engaged, and its wire is passed by hole six, equally, lower pressure sensor and the Kong Baxiang in the main valve body
Coordinate, its wire is passed by hole eight.
Preferred scheme, in addition to it is left block, right blocking, wherein, it is described it is left block install additional sealing device after with the main valve
The lower end of left main valve core bore in body is engaged, it is described it is right block install additional sealing device after with the right main valve plug in the main valve body
The lower end in hole is engaged.
It is relative to the beneficial effect of prior art, using such scheme, the left pilot valve of the utility model, the right elder generation
Guide valve core is high by SUPT motor independent controls, fast response time, control accuracy；Left main valve plug, right main valve plug can be independently
Motion, is required according to real work, it is determined that optimal double spool control program；With good market application value.
Brief description of the drawings
Fig. 1 is a kind of structural representation of advanced digital valve described in the utility model；
Fig. 2 is a kind of guide valve blocks schematic diagram of advanced digital valve described in the utility model；
Fig. 3 is a kind of left valve element schematic diagram of advanced digital valve described in the utility model；
Fig. 4 is a kind of main valve body schematic diagram of advanced digital valve described in the utility model；
Fig. 5 is a kind of left main valve plug schematic diagram of advanced digital valve described in the utility model；
Fig. 6 is an a kind of Application Example of advanced digital valve described in the utility model；
Fig. 7 is a kind of another Application Example of advanced digital valve described in the utility model.
Embodiment
For the ease of understanding the utility model, below in conjunction with the accompanying drawings and specific embodiment, the utility model is carried out more detailed
Thin explanation.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can be with many different
Form is realized, however it is not limited to embodiment described by this specification.On the contrary, the purpose for providing these embodiments is made to this
The understanding of the disclosure of utility model more thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term used in this specification " vertical ", " horizontal ",
"left", "right" and similar statement are for illustrative purposes only.
Unless otherwise defined, technology all used in this specification and scientific terminology are with belonging to skill of the present utility model
The implication that the technical staff in art field is generally understood that is identical.In art used in the description of the present utility model in this specification
Language is intended merely to describe the purpose of specific embodiment, is not intended to limit the utility model.
As shown in figure 1, a kind of advanced digital valve, including central controller (4)；Guide valve blocks (1)；Left valve element (3)；Right valve
Core (5)；Main valve body (9)；Left main valve plug (14)；Right main valve plug (10)；
The central controller (4) is arranged on the guide valve blocks (1) upper end；
The guide valve blocks (1) are arranged on the main valve body (9) upper end；
The left valve element (3) is arranged on the left end in the guide valve blocks (1)；
The right valve element (5) is arranged on the right-hand member in the guide valve blocks (1)；
The left main valve plug (14) is located at the left end in the main valve body (9)；
The right main valve plug (10) is located at the right-hand member in the main valve body (9).
As shown in Fig. 2 symmetrical structure centered on the guide valve blocks (1), left spool bore (102) and right spool bore (104)
Formed by the hole of different-diameter, and horizontal symmetrical is distributed, endoporus one (101) and endoporus two (105) are symmetrical, endoporus three
(109) vertical with endoporus four (110) to communicate, endoporus five (106) is vertical with endoporus six (107) to be communicated, circular hole one (103) central point
The connecting hole of connecting hole, right spool bore (104) the feature holes T1' with left spool bore (102) the feature holes T1 is positioned at same
On one center line, circular hole two (111) is vertical with the feature holes B1 in the left spool bore (102) to be communicated, circular hole three (112) and institute
The feature holes B1' stated in right spool bore (104) is vertically communicated, endoporus seven (108) by asphalt channel respectively with left spool bore
(102) the feature holes P1' in feature holes P1, right spool bore (104) in is communicated.
As shown in figure 3, the left valve element (3) is made up of axle one (301) and axle two (302), its axis two (302) with it is described
Left spool bore (102) in guide valve blocks (1) forms gap and coordinated.
As shown in figure 1, the right valve element (5) has identical physical dimension with the left valve element (3).
As shown in figure 4, symmetrical structure centered on the main valve body (9), wherein, left main valve core bore (903) is by different-diameter
Circular hole composition, right main valve core bore (905) and left main valve core bore (903) are symmetrical, and structure is identical, and hydraulic fluid port B passes through centre
Passage is vertical with left main valve core bore (903) to be communicated, and hydraulic fluid port A communicates by the way that center-aisle is vertical with right main valve core bore (905), oilhole
P' is communicated by Kong Si (904) with the endoporus seven (108) in the guide valve blocks (1), and oilhole T passes through asphalt channel and the left side
Feature holes T2 in main valve core bore (903) is vertically communicated, and passes through the feature holes in asphalt channel and the right main valve core bore (905)
T2' is vertically communicated, and oilhole P communicates by the way that asphalt channel is vertical with the feature holes P2 in the left main valve core bore (903), passes through oil
Paths are vertical with the feature holes P2' in the right main valve core bore (905) to be communicated, hole one (901) and the left main valve core bore
(903) vertically communicate, hole seven (907) is vertical with the right main valve core bore (905) to be communicated, hole eight (908) phase vertical with oilhole P
It is logical.
As shown in figure 5, left main valve plug (14) profile is the axle of diameter by not forming or not, the left side with the main valve body (9)
Main valve core bore (903) forms gap and coordinated.
As shown in figure 1, the right main valve plug (10) is identical with left main valve plug (14) physical dimension, and with the main valve
The right main valve core bore (905) of body (9) forms gap and coordinated.
As shown in figure 1, also include left SUPT motors (2), right SUPT motors (6), wherein, left SUPT motors (2) axle
It is connected with the left valve element (3), the left spool bore (102) being inserted into the guide valve blocks (1), by the left SUPT electricity
Machine (2) is fixed on the guide valve blocks (1), and equally right SUPT motors (6) axle is connected with the right valve element (5),
The right spool bore (104) being inserted into the guide valve blocks (1), the right SUPT motors (6) are fixed on the pilot valve
On body (1)；
As shown in figure 1, also include left dislocation sensor (16), right displacement transducer (7), wherein, the left dislocation sensing
Device (16) upper end is engaged with the endoporus three (109) in the guide valve blocks (1), and its wire passes through in the guide valve blocks (1)
Endoporus four (110) pass, the endoporus (1401) that its lower end is stretched into the left main valve plug (14), equally, the right displacement pass
Sensor (7) upper end is engaged with the endoporus six (107) in the guide valve blocks (1), and its wire passes through in the guide valve blocks (1)
Endoporus five (106) pass, its lower end is stretched into the endoporus of right main valve plug (10) top.
As shown in figure 1, also include left pressure sensor (15), right pressure sensor (8), lower pressure sensor (12), its
In, left pressure sensor (15) is engaged with the hole two (902) in the main valve body (9), and its wire is worn by hole two (902)
Go out, equally, the right pressure sensor (8) is engaged with the hole six (906) in the main valve body (9), and its wire passes through hole six
(906) pass, equally, lower pressure sensor (12) is engaged with the hole eight (908) in the main valve body (9), and its wire passes through
Hole eight (908) passes；
As shown in figure 1, also include left blocking (13), right blocking (11), wherein, described left block (13) install sealing device additional
The lower end with the left main valve core bore (903) in the main valve body (9) is engaged afterwards, after the right blocking (11) installs sealing device additional
It is engaged with the lower end of the right main valve core bore (905) in the main valve body (9).
Fig. 6 is an a kind of Application Example of advanced digital valve described in the utility model, in the present embodiment, control
It is required that it is hydraulic cylinder rodless cavity：Control model controls for flow, realizes the accurate control to a certain speed of hydraulic stem piston；Liquid
Cylinder pressure rod chamber：Controlling model is Stress control, realizes that zero back pressure controls.
Its control process is：Central controller (4) SUPT motors (6) output control electric current to the right, right SUPT motors (6) band
Move right valve element (5) to connect with A1' mouths to left movement certain position, P1' mouths, TI' mouths are connected with B1' mouths, certain pressure and flow
Control fluid enter P1' mouths from P' mouths, subsequently into A1' mouths, right main valve plug (10) upper end is entered by A1' mouths, promoted right
Main valve plug (10) moves downward certain distance, and right primary valve opens (openings of sizes pass proportional to the oil liquid pressure for flowing into epicoele
System), P2' mouths are connected with A mouths, according to flow formula q=KL·A·(P1-P2)m, with reference to the pressure difference of main valve pressure sensor
△ P (△ P=P1-P2, wherein, P1- lower pressure sensor (12) output valve, P2- right pressure sensor (8) output valve) and valve
Core displacement signal, by being contrasted with largely testing obtained accurate calibration value, the working connection fluid of a certain flow passes through P
Mouth, P2' mouths enter A mouths, then enter hydraulic cylinder rodless cavity from A mouths, promote hydraulic stem piston rod to be run with a certain fixed speed,
So as to realize the accurate control to hydraulic cylinder piston movement velocity；
Meanwhile SUPT motors (2) send control electric current signal to central controller (4) to the left, left SUPT motors (2) drive left
Valve element (3) is controlled to left movement, moving displacement amount by input current size, and P1 mouths are connected with B1 mouths, and A1 mouths are connected with T1 mouths, control
Liquefaction road flows into P1 mouths from P' mouths, subsequently into B1 mouths, by the circular hole two (111) on guide valve blocks (1), is connected to circular hole two
(111) external oil pipe on enters the hole one (901) of main valve body (9), eventually flows into the lower end cavity of left main valve plug (14), promotes
Left main valve plug (14) is moved upwards, and B mouths are connected with T2 mouths, and hydraulic cylinder rod chamber fluid enters T mouths from B mouths, T2 mouths, then from T
Mouth outflow fuel tank, pressure value is measured in real time by left pressure sensor (15), and pressure value is fed back into central control by CAN
Device (4) processed, by with largely testing after obtained accurate calibration value contrasted, adjusting output signal in time, correcting left SUPT
Motor (2) input signal, so as to ensure to realize minimum back pressure control.
Fig. 7 is a kind of another Application Example of advanced digital valve described in the utility model, in the present embodiment, control
Requirement processed is：Precise displacement control is carried out respectively to two hydraulic cylinder piston displacements, its control process is：Central controller (4)
SUPT motors (2) send control signal to the left, and left SUPT motors (2) drive left valve element (3) displacement respective distances, left poppet port
Open and (it is relevant with left SUPT motor input currents size to open size), pilot valve control fluid enters P1 mouths from P' mouths, then
Into A1 mouths, left main valve plug (14) upper end cavity is entered finally into, promotes left main valve plug (14) to move downward, amount of exercise is by left position
Displacement sensor (16) is detected in real time, and detection signal is converted into electric signal, and central controller (4) is passed to by wire, with
Given control signal is compared, and error amount is transferred to left SUPT motors (2) by comparing amplifying element, so as to which adjustment is left in real time
SUPT motors (2) output control signal size, realizes the accurate control to left main valve plug (14) displacement, left main valve plug (14) to
Lower motion, valve port are opened, and working connection fluid enters B mouths from P mouths, P2 mouths, enters left side hydraulic control rodless cavity, root by B mouths
According to flow formula q=KL·A·(P1-P2)m, with reference to pressure difference △ P (the △ P=P of main valve pressure sensor1-P2, wherein,
P1- lower pressure sensor (12) output valve, P2- right pressure sensor (8) output valve) and spool displacement signal, realize enter it is left
The accurate control of side hydraulic control rodless cavity fluid amount, finally realize to hydraulic cylinder piston displacementAccurate control.
Right hydraulic cylinder control principle is identical with left hydraulic cylinder control principle.
In addition, it is necessary to explanation, this specification and its accompanying drawing 6, accompanying drawing 7 are Application Example of the present utility model, not
Illustrate that the utility model only has this two Application Examples.For example, the accurate of friction speed can be implemented to a hydraulic motor
Control, for example, same time friction speed or same time can be implemented simultaneously to the hydraulic motor of two and more than two
Identical speed control, for example, to the hydraulic cylinder of two and the above same time friction speed can be implemented simultaneously or with for the moment
Between identical speed control, for example, the identical speed of different time or different time can be implemented to the hydraulic cylinder of three and the above
Friction speed controls, for example, can implement friction speed, different pressures control, etc. to each hydraulic cylinder.
Furthermore, it is necessary to explanation, what all construction, feature and the principle described according to the utility model patent design were done etc.
Effect or simple change, are included in the protection domain of the utility model patent.
Claims (5)
- A kind of 1. advanced digital valve, it is characterised in that：Including central controller (4)；Guide valve blocks (1)；Left valve element (3)；Right valve Core (5)；Main valve body (9)；Left main valve plug (14)；Right main valve plug (10)；The central controller (4) is arranged on the guide valve blocks (1) upper end；The guide valve blocks (1) are arranged on the main valve body (9) upper end；The left valve element (3) is arranged on the left end in the guide valve blocks (1)；The right valve element (5) is arranged on the right-hand member in the guide valve blocks (1)；The left main valve plug (14) is located at the left end in the main valve body (9)；The right main valve plug (10) is located at the right-hand member in the main valve body (9)；Wherein, symmetrical structure, left spool bore (102) and right spool bore (104) are straight by difference centered on the guide valve blocks (1) The hole composition in footpath, and horizontal symmetrical is distributed, endoporus one (101) and endoporus two (105) are symmetrical, endoporus three (109) and endoporus Four (110) are vertically communicated, and endoporus five (106) is vertical with endoporus six (107) to be communicated, circular hole one (103) central point and the left valve Core bore (102) feature holes T1 connecting hole, the connecting hole of right spool bore (104) the feature holes T1' are located on same center line, Circular hole two (111) is vertical with the feature holes B1 in the left spool bore (102) to be communicated, circular hole three (112) and the right spool bore (104) the feature holes B1' in is vertically communicated, endoporus seven (108) by asphalt channel respectively with the feature in left spool bore (102) Feature holes P1' in hole P1, right spool bore (104) is communicated；The left valve element (3) is made up of axle one (301) and axle two (302), in its axis two (302) and the guide valve blocks (1) Left spool bore (102) formed gap coordinate；The right valve element (5) has identical physical dimension with the left valve element (3)；Symmetrical structure centered on the main valve body (9), wherein, left main valve core bore (903) is made up of the circular hole of different-diameter, right master Spool bore (905) and left main valve core bore (903) are symmetrical, and structure is identical, and hydraulic fluid port B passes through center-aisle and left main valve core bore (903) vertically communicate, hydraulic fluid port A communicates by the way that center-aisle is vertical with right main valve core bore (905), and oilhole P' passes through Kong Si (904) Communicated with the endoporus seven (108) in the guide valve blocks (1), oilhole T passes through in asphalt channel and the left main valve core bore (903) Feature holes T2 vertically communicate, communicated by the way that asphalt channel is vertical with the feature holes T2' in the right main valve core bore (905), oil Hole P communicates by the way that asphalt channel is vertical with the feature holes P2 in the left main valve core bore (903), passes through asphalt channel and the right side Feature holes P2' in main valve core bore (905) is vertically communicated, and hole one (901) is vertical with the left main valve core bore (903) to be communicated, hole Seven (907) are vertical with the right main valve core bore (905) to be communicated, and hole eight (908) is vertical with oilhole P to be communicated；Whether left main valve plug (14) profile the axle of diameter by not being made up of or not, left main valve core bore (903) shape with the main valve body (9) Coordinate into gap；The right main valve plug (10) and the left main valve plug (14) have an identical physical dimension, and with the main valve body (9) Right main valve core bore (905) forms gap and coordinated.
- 2. a kind of advanced digital valve according to claim 1, it is characterised in that also including left SUPT motors (2), right SUPT Motor (6), wherein, left SUPT motors (2) axle is connected with the left valve element (3), is inserted into the guide valve blocks (1) In left spool bore (102), the left SUPT motors (2) are fixed on the guide valve blocks (1), equally by the right SUPT Motor (6) axle is connected with the right valve element (5), the right spool bore (104) being inserted into the guide valve blocks (1), by institute Right SUPT motors (6) are stated to be fixed on the guide valve blocks (1).
- 3. a kind of advanced digital valve according to claim 1, it is characterised in that also including left dislocation sensor (16), the right side Displacement transducer (7), wherein, left dislocation sensor (16) upper end and endoporus three (109) phase in the guide valve blocks (1) Coordinate, its wire is passed by the endoporus four (110) in the guide valve blocks (1), and the left main valve plug (14) is stretched into its lower end In endoporus (1401), equally, right displacement transducer (7) upper end and endoporus six (107) phase in the guide valve blocks (1) Coordinate, its wire is passed by the endoporus five (106) in the guide valve blocks (1), and the right main valve plug (10) is stretched into its lower end In the endoporus of top.
- 4. a kind of advanced digital valve according to claim 1, it is characterised in that also including left pressure sensor (15), the right side Pressure sensor (8), lower pressure sensor (12), wherein, left pressure sensor (15) and the hole two in the main valve body (9) (902) it is engaged, its wire is passed by hole two (902), equally, in the right pressure sensor (8) and the main valve body (9) Hole six (906) be engaged, its wire is passed by hole six (906), equally, lower pressure sensor (12) and the main valve body (9) hole eight (908) in is engaged, and its wire is passed by hole eight (908).
- 5. a kind of advanced digital valve according to claim 1, it is characterised in that also including left blocking (13), right blocking (11), wherein, it is described it is left block (13) install additional sealing device after with the left main valve core bore (903) in the main valve body (9) End is engaged, the lower end after right blocking (11) the installation sealing device with the right main valve core bore (905) in the main valve body (9) It is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720502226.0U CN206682064U (en) | 2017-05-08 | 2017-05-08 | A kind of advanced digital valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720502226.0U CN206682064U (en) | 2017-05-08 | 2017-05-08 | A kind of advanced digital valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206682064U true CN206682064U (en) | 2017-11-28 |
Family
ID=60407294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720502226.0U Expired - Fee Related CN206682064U (en) | 2017-05-08 | 2017-05-08 | A kind of advanced digital valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206682064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101021A (en) * | 2017-05-08 | 2017-08-29 | 许昌学院 | A kind of new digital valve |
-
2017
- 2017-05-08 CN CN201720502226.0U patent/CN206682064U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107101021A (en) * | 2017-05-08 | 2017-08-29 | 许昌学院 | A kind of new digital valve |
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Granted publication date: 20171128 Termination date: 20180508 |