CN209638501U - A kind of preset input electric Proportion valve of multiple spot - Google Patents
A kind of preset input electric Proportion valve of multiple spot Download PDFInfo
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- CN209638501U CN209638501U CN201920108741.XU CN201920108741U CN209638501U CN 209638501 U CN209638501 U CN 209638501U CN 201920108741 U CN201920108741 U CN 201920108741U CN 209638501 U CN209638501 U CN 209638501U
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Abstract
The utility model discloses a kind of preset input electric Proportion valves of multiple spot, including casing assembly, circuit board assemblies, button, display screen, solenoid valve, cylinder manifold, rubber fabric clamped film sheet, piston rod, piston, 4 needle interface glue cores, 5 needle interface glue cores and connection the end of a thread, button is connected with circuit board assemblies, display screen is connected with circuit board assemblies, solenoid valve is connected with circuit board assemblies, cylinder manifold is connected with circuit board assemblies, one end of piston rod is connected with rubber fabric clamped film sheet, the other end of piston is connected with piston rod, connection the end of a thread is respectively sleeved on corresponding 4 needle interface glue core and 5 needle interface glue cores.The utility model structure is simple, control and digital display precision are substantially increased, and low in energy consumption, long service life, compact, temperature coefficient are stablized, user of service accurately can grasp and control 16 points of output pressure size, and understand corresponding digital display value, ensure that signal stablizes transmission.
Description
Technical field
The utility model and proportioning valve technical field are more specifically to be related to a kind of preset electrical ratio of input of multiple spot
Valve.
Background technique
Ratio valve regulation output pressure is usually used in industrial pneumatic equipment, facilitates the stroke of control cylinder.Such as, with gas
Cylinder is matched, matches with pneumatic triple piece, is matched with pressure vessel, and proportioning valve is widely used in various pneumatic
In the industrial pneumatics equipment such as pressure regulating system of system.However in proportioning valve application industry, part industry is not needed continuously
Pressure is controlled, existing proportioning valve requires greatly Analog control, and control point is less, and general, at high cost, control is complicated at preset 4 points.
Utility model content
The purpose of the utility model is to overcome drawbacks described above in the prior art, provide one kind and effectively improve control and number
Aobvious precision, and low in energy consumption, long service life, compact, temperature coefficient are stablized, user of service accurately can grasp and control 16
The output pressure size of point, and understand corresponding digital display value, it ensure that the electrical ratio of the preset input of the multiple spot for stablizing transmission of signal
Example valve.
To achieve the above object, the utility model provides a kind of preset input electric Proportion valve of multiple spot, including shell group
Part, circuit board assemblies, button, display screen, solenoid valve, cylinder manifold, rubber fabric clamped film sheet, piston rod, piston, 4 needle interface glue cores,
5 needle interface glue cores and connection the end of a thread, the rear end of the casing assembly are equipped with input port, and front end is equipped with delivery outlet, the circuit board
Component, solenoid valve, cylinder manifold, rubber fabric clamped film sheet, piston rod and piston are installed in the inside of casing assembly, the button dress
It is located on casing assembly, and is connected with circuit board assemblies, the circuit board assemblies are controlled using single-chip microcontroller, the display screen dress
Be located on casing assembly, and be connected with circuit board assemblies, the solenoid valve is connected with circuit board assemblies, the cylinder manifold with
Circuit board assemblies are connected, and one end of the piston rod is connected with rubber fabric clamped film sheet, the other end and piston of the piston
Bar is connected closing and the opening structure to be formed to the delivery outlet of casing assembly, the 4 needle interface glue core and 5 needle interface glue cores point
It is not installed in the top of casing assembly, described connection the end of a thread is respectively sleeved at corresponding 4 needle interface glue core and 5 needle interface glue cores
On.
Preferably, the casing assembly includes top shell, front housing, rear shell, pedestal and rear cover, the top shell, front housing, after
Shell, pedestal and rear cover are sequentially connected, and the cylinder manifold is installed between top shell and front housing, are arranged between the cylinder manifold and front housing
There is cylinder manifold sealing plate, the circuit board assemblies and solenoid valve are installed between top shell and cylinder manifold, the rubber fabric clamped film sheet
It is installed between front housing and rear shell, the piston and piston rod are installed between rear shell, pedestal and rear cover, and the button is installed in
In top shell, the display screen is installed in top shell.
Preferably, further include screening glass after screening glass and diaphragm before diaphragm, before the diaphragm after screening glass and diaphragm
Screening glass, which is respectively installed on the front and rear sides of rubber fabric clamped film sheet, forms protection structure to rubber fabric clamped film sheet.
Preferably, the piston includes secondary piston and rear piston, the rear piston is installed in piston rod
End, the secondary piston are installed on the front end of piston rod, it is described after piston be installed between rear shell and pedestal formed closing or
Control structure is opened, the secondary piston, which is installed between pedestal and rear cover, forms closing or unlatching control structure.
Preferably, further including rear piston support spring and secondary piston support spring, between the rear piston and rear shell
Rear piston support spring is provided with to hold out against rear piston, be provided between the secondary piston and rear cover secondary piston support spring will before
Piston is held out against.
Preferably, further including button cover board, the button is installed in top shell by button cover board.
Preferably, further including the first O-ring seal and the second O-ring seal, set between piston and rear shell after described
It is equipped with the first O-ring seal, the second O-ring seal is provided between the secondary piston and rear cover.
Preferably, the circuit board assemblies include signal input module, control unit module, signal feedback collection mould
Block and solenoid valve driving module, the signal input module, signal feedback collection module and solenoid valve driving module respectively with control
Unit module processed is connected, and the solenoid valve is connected with solenoid valve driving module.
Compared with prior art, the utility model has the beneficial effects that:
The utility model structure is simple, including casing assembly, circuit board assemblies, button, display screen, solenoid valve, cylinder manifold,
Rubber fabric clamped film sheet, piston rod, piston, 4 needle interface glue cores, 5 needle interface glue cores and connection the end of a thread, the rear end of casing assembly is equipped with
Input port, front end are equipped with delivery outlet, and circuit board assemblies, solenoid valve, cylinder manifold, rubber fabric clamped film sheet, piston rod and piston fill
It is located at the inside of casing assembly, button is installed on casing assembly, and is connected with circuit board assemblies, and circuit board assemblies are using single
The control of piece machine, display screen is installed on casing assembly, and is connected with circuit board assemblies, and solenoid valve is connected with circuit board assemblies
It connects, cylinder manifold is connected with circuit board assemblies, and one end of piston rod is connected with rubber fabric clamped film sheet, the other end of piston and work
Stopper rod is connected closing and the opening structure to be formed to the delivery outlet of casing assembly, 4 needle interface glue cores and 5 needle interface glue cores difference
It is installed in the top of casing assembly, connection the end of a thread is respectively sleeved on corresponding 4 needle interface glue core and 5 needle interface glue cores, uses
Pid control algorithm enables proportioning valve to reach 1kPa grades of control accuracy, substantially increases control and digital display precision, and function
It consumes low, long service life, compact, temperature coefficient to stablize, there are two line interface and 16 control points for setting, preparatory by user
Set multiple spot atmospheric pressure value, according to certain switching value or the accurate output pressure value of switch state, user of service can accurately grasp and
16 points of output pressure size is controlled, and understands corresponding digital display value, ensure that signal stablizes transmission.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of structural schematic diagram of the preset input electric Proportion valve of multiple spot provided by the utility model；
Fig. 2 is a kind of cross section view of the preset input electric Proportion valve of multiple spot provided by the utility model；
Fig. 3 is a kind of decomposition texture schematic diagram of the preset input electric Proportion valve of multiple spot provided by the utility model；
Fig. 4 is a kind of schematic diagram of movements of the preset input electric Proportion valve of multiple spot provided by the utility model；
Fig. 5 is that a kind of circuit of the signal acquisition circuit of the preset input electric Proportion valve of multiple spot provided by the utility model is former
Reason figure；
Fig. 6 is a kind of circuit theory of the solenoid-driven of the preset input electric Proportion valve of multiple spot provided by the utility model
Figure.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, the embodiments of the present invention provide a kind of preset electrical ratio of input of multiple spot
Valve, including casing assembly 1, circuit board assemblies 2, button 3, display screen 4, solenoid valve 5, cylinder manifold 6, rubber fabric clamped film sheet 7, piston
Bar 8, piston 9,4 needle interface glue cores 10,5 needle interface glue cores 11 and connection the end of a thread 12, the rear end of casing assembly 1 are equipped with input port,
Front end is equipped with delivery outlet, and circuit board assemblies 2, solenoid valve 5, cylinder manifold 6, rubber fabric clamped film sheet 7, piston rod 8 and piston 9 are installed
In the inside of casing assembly 1, button 3 is installed on casing assembly 1, and is connected with circuit board assemblies 2, and circuit board assemblies 2 are adopted
It is controlled with single-chip microcontroller, display screen 4 is installed on casing assembly 1, and is connected with circuit board assemblies 2, solenoid valve 5 and circuit board group
Part 2 is connected, and cylinder manifold 6 is connected with circuit board assemblies 2, and one end of piston rod 8 is connected with rubber fabric clamped film sheet 7, piston 9
The other end be connected to form closing and the opening structure of the delivery outlet to casing assembly 1 with piston rod 8,4 needle interface glue cores 10
The top of casing assembly 1 is respectively installed in 5 needle interface glue cores 11, connection the end of a thread 12 is respectively sleeved at corresponding 4 needle interface glue
On the needle interface glue of core 10 and 5 core 11, the present embodiment is described in detail with reference to the accompanying drawing.
As shown in Figures 2 and 3, including casing assembly 1, circuit board assemblies 2, button 3, display screen 4, solenoid valve 5, cylinder manifold
6, rubber fabric clamped film sheet 7, piston rod 8, piston 9,4 needle interface glue cores 10,5 needle interface glue cores 11 and connection the end of a thread 12, shell group
The rear end of part 1 be equipped with input port, front end be equipped with delivery outlet, circuit board assemblies 2, solenoid valve 5, cylinder manifold 6, rubber fabric clamped film sheet 7,
Piston rod 8 and piston 9 are installed in the inside of casing assembly 1, and button 3 is installed on casing assembly 1, and with circuit board assemblies 2
It is connected, circuit board assemblies 2 are controlled using single-chip microcontroller, and display screen 4 is installed on casing assembly 1, and is connected with circuit board assemblies 2
It connects, solenoid valve 5 is connected with circuit board assemblies 2, and cylinder manifold 6 is connected with circuit board assemblies 2, one end of piston rod 8 and rubber
Clamping cloth diaphragm 7 is connected, and the other end of piston 9 is connected with piston rod 8 to be formed the closing to the delivery outlet of casing assembly 1 and open
Structure is opened, 4 needle interface glue cores 10 and 5 needle interface glue cores 11 are respectively installed in the top of casing assembly 1, and connection the end of a thread 12 covers respectively
It is located on corresponding 4 needle interface glue core 10 and 5 needle interface glue cores 11, using pid control algorithm, proportioning valve is enable to reach 1kPa
The control accuracy of grade, substantially increases control and digital display precision, and low in energy consumption, long service life, compact, temperature coefficient
Stablize, there are two line interface and 16 control points for setting, preset multiple spot atmospheric pressure value by user, according to certain switching value or open
The accurate output pressure value of off status, user of service accurately can grasp and control 16 points of output pressure size, and understand corresponding
Digital display value, ensure that signal stablize transmission.
Specifically, casing assembly 1 includes top shell 13, front housing 14, rear shell 15, pedestal 16 and rear cover 17, top shell 13, front housing
14, rear shell 15, pedestal 16 and rear cover 17 are sequentially connected, and cylinder manifold 6 is installed between top shell 13 and front housing 14, and cylinder manifold 6 is with before
Cylinder manifold sealing plate 18 is provided between shell 14, circuit board assemblies 2 and solenoid valve 5 are installed between top shell 13 and cylinder manifold 6, rubber
Plastic clip cloth diaphragm 7 is installed between front housing 14 and rear shell 15, and piston 9 and piston rod 8 are installed in rear shell 15, pedestal 16 and rear cover 17
Between, button 3 is installed in top shell 13, and display screen 4 is installed in top shell 13.
Wherein, further include screening glass 20 after screening glass 19 and diaphragm before diaphragm, protected after screening glass 19 and diaphragm before diaphragm
Piece 20, which is respectively installed on the front and rear sides of rubber fabric clamped film sheet 7, forms protection structure to rubber fabric clamped film sheet 7.
Wherein, piston 9 includes secondary piston 21 and rear piston 22, and rear piston 22 is installed on the middle-end of piston rod 8, preceding work
Plug 21 is installed on the front end of piston rod 8, and rear piston 22 is installed between rear shell 15 and pedestal 16 to form closing or open and control
Structure processed, secondary piston 21, which is installed between pedestal 16 and rear cover 17, forms closing or unlatching control structure.
Preferably, further including rear piston support spring 23 and secondary piston support spring 24, between rear piston 22 and rear shell 15
It is provided with rear piston support spring 23 to hold out against rear piston 22, secondary piston support spring is provided between secondary piston 21 and rear cover 17
24 hold out against secondary piston.
Preferably, further including button cover board 25, button 3 is installed in top shell 13 by button cover board 25.
Wherein, further include the first O-ring seal 26 and the second O-ring seal 27, be arranged between rear piston 22 and rear shell 15
There is the first O-ring seal 26, the second O-ring seal 27 is provided between secondary piston 21 and rear cover 17.
Wherein, as shown in Figure 4, Figure 5 and Figure 6, circuit board assemblies 2 include signal input module, control unit module, signal
Feedback collection module and solenoid valve driving module, signal input module, signal feedback collection module and solenoid valve driving module point
It is not connected with control unit module, solenoid valve 5 is connected with solenoid valve driving module.
Wherein, circuit board assemblies 7 have following functions design:
Counnter attack connection function: being designed by circuit hardware, connects diode D1 in circuit, prevents circuit from instead with power supply
It connects and output signal reversal connection function, after reverse power connection, diode D1 protects entire circuit devcie, when circuit output short circuit or mistake
When load, by the signal intensity on sampling resistor obtain whether short circuit or overload signal, single-chip microcontroller output protection signal, disconnect it is defeated
Signal out.
Over-voltage protecting function: the maximum value by detecting input voltage connects automatically when voltage drops to setting value or less
Power work is connect, realizes superpressure auto power off, protects subsequent conditioning circuit.
Simulation output function: feedback signal is obtained by the pressure value of output, single-chip microcontroller acquires feedback signal output and corresponds to
Analog voltage or current signal, be given to control terminal host computer, whether feedback, which has completed control, requires.
LDO power-supply service: using LDO linear voltage regulator, and using two-stage pressure stabilizing, the first order is defeated to amplifier, solenoid valve, switch
It powers out, the second level exports to single-chip microcontroller, sample conversion chip and display and powers, and keeps bulk supply stability good, exports line
Wave is small.
It is illustrated in figure 5 the circuit diagram of signal acquisition circuit, the pin 3 of sensor U5 connects positive pole, pin
1,6 connection power cathode is amplified by the variable voltage signal of the size variation output of pressure by operational amplifier, defeated
1 to 3V analog voltage out.
It is illustrated in figure 6 the circuit diagram of solenoid-driven, is realized by the length opened and closed using solenoid valve 2
Control the size of gas circuit flow.When work, the adjustable square wave of control unit module output pulse width is controlled by triode Q2
The charge and discharge length of time of capacitor C2 is made comparisons with the voltage on resistance R21 through operational amplifier U3-A amplifier, output control letter
Number on or off through resistance R28 control triode Q10, is controlled the length of on or off time with this, realizes control electricity
The opening and closing length of time of magnet valve 2 achievees the purpose that control gas circuit uninterrupted.
When work, preset design of pressure is saved in a device, after switch control signal, which instructs, to be issued, is controlled back
Road carries out the selection of pre-set value according to the state of switch order input signal, then the current pressure of signal feedback circuit module acquisition
The setting value and current pressure signal that force signal is inputted according to user to control loop, control loop compare, output control
Signal driving gas supply electromagnetic valve or exhaust solenoid valve are compensated or are discharged, and adjust the air pressure size of pilot chamber, push rubber folder
Cloth diaphragm 7 drives piston rod 8 to open the gap size of air-supplying valve and drain tap, to control the pressure value of output, pressure
The control range of value is between 0.0005 to 0.9.
In conclusion the utility model structure is simple, including casing assembly 1, circuit board assemblies 2, button 3, display screen 4,
Solenoid valve 5, cylinder manifold 6, rubber fabric clamped film sheet 7, piston rod 8, piston 9,4 needle interface glue cores 10,5 needle interface glue cores 11 and connection
The end of a thread 12, the rear end of casing assembly 1 are equipped with input port, and front end is equipped with delivery outlet, circuit board assemblies 2, solenoid valve 5, cylinder manifold 6,
Rubber fabric clamped film sheet 7, piston rod 8 and piston 9 are installed in the inside of casing assembly 1, and button 3 is installed on casing assembly 1, and
Be connected with circuit board assemblies 2, circuit board assemblies 2 are controlled using single-chip microcontroller, and display screen 4 is installed on casing assembly 1, and with electricity
Road board group 2 are connected, and solenoid valve 5 is connected with circuit board assemblies 2, and cylinder manifold 6 is connected with circuit board assemblies 2, piston rod 8
One end be connected with rubber fabric clamped film sheet 7, the other end of piston 9 is connected the output to be formed to casing assembly 1 with piston rod 8
The closing of mouth and opening structure, 4 needle interface glue cores 10 and 5 needle interface glue cores 11 are respectively installed in the top of casing assembly 1, connection
The end of a thread 12 is respectively sleeved on corresponding 4 needle interface glue core 10 and 5 needle interface glue cores 11, using pid control algorithm, makes proportioning valve
The control accuracy that 1kPa grades can be reached substantially increases control and digital display precision, and low in energy consumption, long service life, volume
Small and exquisite, temperature coefficient is stablized, and there are two line interface and 16 control points for setting, presets multiple spot atmospheric pressure value by user, according to
Certain switching value or the accurate output pressure value of switch state, the output pressure that user of service accurately could grasp and control at 16 points are big
It is small, and understand corresponding digital display value, ensure that signal stablizes transmission.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiment of utility model is not by above-mentioned reality
Apply the limitation of example, it is made under other any spiritual essence and principles without departing from the utility model change, modification, substitution,
Combination simplifies, and should be equivalent substitute mode, is included within the protection scope originally put.
Claims (8)
1. a kind of preset input electric Proportion valve of multiple spot, it is characterised in that: including casing assembly (1), circuit board assemblies (2), press
Button (3), display screen (4), solenoid valve (5), cylinder manifold (6), rubber fabric clamped film sheet (7), piston rod (8), piston (9), 4 needle interfaces
The rear end of glue core (10), 5 needle interface glue cores (11) and connection the end of a thread (12), the casing assembly (1) is equipped with input port, and front end is set
There are delivery outlet, the circuit board assemblies (2), solenoid valve (5), cylinder manifold (6), rubber fabric clamped film sheet (7), piston rod (8) and work
Plug (9) is installed in the inside of casing assembly (1), and the button (3) is installed on casing assembly (1), and and circuit board assemblies
(2) it is connected, the circuit board assemblies (2) are controlled using single-chip microcontroller, and the display screen (4) is installed on casing assembly (1), and
It is connected with circuit board assemblies (2), the solenoid valve (5) is connected with circuit board assemblies (2), the cylinder manifold (6) and circuit
Board group part (2) is connected, and one end of the piston rod (8) is connected with rubber fabric clamped film sheet (7), the piston (9) it is another
End is connected to form closing and the opening structure of the delivery outlet to casing assembly (1) with piston rod (8), the 4 needle interface glue core
(10) and 5 needle interface glue cores (11) are respectively installed in the top of casing assembly (1), and the connection the end of a thread (12) is respectively sleeved at phase
On the 4 needle interface glue cores (10) and 5 needle interface glue cores (11) answered.
2. the preset input electric Proportion valve of a kind of multiple spot according to claim 1, it is characterised in that: the casing assembly
(1) include top shell (13), front housing (14), rear shell (15), pedestal (16) and rear cover (17), the top shell (13), front housing (14), after
Shell (15), pedestal (16) and rear cover (17) are sequentially connected, and the cylinder manifold (6) is installed between top shell (13) and front housing (14),
It is provided with cylinder manifold sealing plate (18) between the cylinder manifold (6) and front housing (14), the circuit board assemblies (2) and solenoid valve
(5) it is installed between top shell (13) and cylinder manifold (6), the rubber fabric clamped film sheet (7) is installed in front housing (14) and rear shell (15)
Between, the piston (9) and piston rod (8) are installed between rear shell (15), pedestal (16) and rear cover (17), the button (3)
It is installed on top shell (13), the display screen (4) is installed on top shell (13).
3. the preset input electric Proportion valve of a kind of multiple spot according to claim 1, it is characterised in that: further include protecting before diaphragm
Screening glass (20) after bluff piece (19) and diaphragm, screening glass (20) is respectively installed in rubber after screening glass (19) and diaphragm before the diaphragm
Protection structure is formed to rubber fabric clamped film sheet (7) on the front and rear sides of plastic clip cloth diaphragm (7).
4. the preset input electric Proportion valve of a kind of multiple spot according to claim 2, it is characterised in that: piston (9) packet
Secondary piston (21) and rear piston (22) are included, the rear piston (22) is installed on the middle-end of piston rod (8), the secondary piston
(21) it is installed on the front end of piston rod (8), the rear piston (22), which is installed between rear shell (15) and pedestal (16), to be formed
Control structure is opened in closing, and the secondary piston (21), which is installed between pedestal (16) and rear cover (17), to be formed closing or open
Open control structure.
5. the preset input electric Proportion valve of a kind of multiple spot according to claim 4, it is characterised in that: further include rear piston branch
Spring (23) and secondary piston support spring (24) are supportted, is provided with rear piston support bullet after described between piston (22) and rear shell (15)
Spring (23) holds out against rear piston (22), and secondary piston support spring (24) are provided between the secondary piston (21) and rear cover (17) will
Secondary piston is held out against.
6. the preset input electric Proportion valve of a kind of multiple spot according to claim 2, it is characterised in that: further include button cover board
(25), the button (3) is installed on top shell (13) by button cover board (25).
7. the preset input electric Proportion valve of a kind of multiple spot according to claim 4, it is characterised in that: further include first O-shaped
Sealing ring (26) and the second O-ring seal (27) are provided with the first O-ring seal between piston (22) and rear shell (15) after described
(26), the second O-ring seal (27) are provided between the secondary piston (21) and rear cover (17).
8. the preset input electric Proportion valve of a kind of multiple spot according to claim 1, it is characterised in that: the circuit board assemblies
It (2) include signal input module, control unit module, signal feedback collection module and solenoid valve driving module, the signal is defeated
Enter module, signal feedback collection module and solenoid valve driving module to be connected with control unit module respectively, the solenoid valve (5)
It is connected with solenoid valve driving module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108741.XU CN209638501U (en) | 2019-01-23 | 2019-01-23 | A kind of preset input electric Proportion valve of multiple spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108741.XU CN209638501U (en) | 2019-01-23 | 2019-01-23 | A kind of preset input electric Proportion valve of multiple spot |
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| Publication Number | Publication Date |
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| CN209638501U true CN209638501U (en) | 2019-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920108741.XU Active CN209638501U (en) | 2019-01-23 | 2019-01-23 | A kind of preset input electric Proportion valve of multiple spot |
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| CN (1) | CN209638501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI727681B (en) * | 2020-02-27 | 2021-05-11 | 台灣氣立股份有限公司 | Thin electronically controlled proportional valve with quick-discharge valve |
-
2019
- 2019-01-23 CN CN201920108741.XU patent/CN209638501U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI727681B (en) * | 2020-02-27 | 2021-05-11 | 台灣氣立股份有限公司 | Thin electronically controlled proportional valve with quick-discharge valve |
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