CN102211713B - Automatic pneumatic control method and device for reception - Google Patents
Automatic pneumatic control method and device for reception Download PDFInfo
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- CN102211713B CN102211713B CN200810305193.6A CN200810305193A CN102211713B CN 102211713 B CN102211713 B CN 102211713B CN 200810305193 A CN200810305193 A CN 200810305193A CN 102211713 B CN102211713 B CN 102211713B
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Abstract
The invention discloses an automatic pneumatic control method and device for reception, and relates to the field of pneumatic pipeline transmission system. During the use of the existing transmission system, the valve cannot be opened in time, and the transmission speed is influenced; and as the valve is impacted, related devices are easily damaged, causing control failure. The invention provides a method and device with simple structure, low failure rate and high transmission speed; in order to apply negative pressure into the pipeline, an exhaust fan is started, and the valve is controlled by the negative-pressure air flow to close the pipeline; a transmitter is sucked into the transmission pipeline; and the valve is opened, and the transmitter smoothly passes through the valve without impacting the valve.
Description
Technical field
The present invention relates to Pneumatic pipe transmission system field, particularly to a kind of method of the automatic gas control of reception and dress
Put.
Background technology
Pneumatic pipe transmission system is the quick logistics transmission instrument of modernization.Pneumatic pipe transmission system is applied in doctor
The daily requirements such as institute, bank, office building, supermarket, workshop, laboratory have the place of large numbers of items transmission.Disease can be transmitted
Go through, the article of any proper volume such as medical certification, medicine, laboratory test report, bill, cash, file.Article insert transmission in transmission
In carrier, such as special transmission cylinder, transmission cylinder ensures that article are without damage during transmission.Pneumatic pipe transmission system exists
In pipeline, article are sent to another one work station from a work station, the safety of transmission article can not only be effectively ensured,
And can save the time, improve work efficiency.
As shown in figure 1, Pneumatic pipe transmission system includes Pneumatic pipe 1, has the biography of transporting articles in Pneumatic pipe 1
Transmission carrier 2, is provided with extractor fan 3 and valving 4 on Pneumatic pipe 1, and is additionally provided with blower fan on Pneumatic pipe
Sensor 5, described extractor fan 3, valving 4 and blower fan sensor 5 are electrically connected with control main frame 6 respectively.Control main frame 6
The opening of control valve device and extractor fan, and control the closing of blower fan apparatus according to the transducing signal of blower fan sensor 5.
In use, valve can not be opened in time, have impact on transmission speed, and because clashing into valve, and fragile phase
Close device, cause to control the fault losing efficacy.
Content of the invention
The technical problem to be solved is to provide a kind of structure simple, and rate of breakdown is low, and transmission speed is fast
Method and device.
A kind of method of the automatic gas control of reception,
When 1 needs add negative pressure in pipeline, air exhauster starts, and valve is controlled pipeline closed by negative-pressure air-flow；Transmission
Device is inhaled into transmission pipeline；
2 valves are opened, and transmitter will not bump against door, and smooth at valve.
Further
3 valves are opened, and transmitter will not bump against door, smooth at valve, and the more slow entrance that need not pause receives
End.
Further
Blower fan starts, and valve closed by negative-pressure air-flow, when transmitter crosses the interface of bypass duct and transmission pipeline, bypass
Pipeline imports atmospheric pressure, and valve is opened.
Further
Valve leans on gravity or elastic-restoring force or counterweight forces to open.
Further
Bypass duct one end be connected on Fan pipeline or the seam of Fan pipeline or the gas cabin of valve in, the other end is even
It is connected on transmission pipeline.
Further
Bypass duct one end be connected on Fan pipeline or the seam of Fan pipeline or the gas cabin of valve in, the other end is even
It is connected on and have on the transmission pipeline in place of certain distance according to transmitter entrance.
Further
Transmitter enters, after obtaining certain momentum, the bypass area being connected to bypass duct.
Further
After transmitter enters bypass area, described valve leaves transmission pipeline.
Further
The caliber of bypass duct is more than the caliber of transmission pipeline.
Preferably
A kind of device of the automatic gas control of reception,
Including bypass pipeline section, one end is connected at control valve or on the air channel of blower fan, and the other end is connected to transmitter and transmits
Pipeline on, for when transmitter passes at valve soon, dischargeing to negative pressure at valve immediately, so that valve is opened；Including valve
Door gear, is arranged at the opening of transmission pipeline；Pipeline is opened in suction function ShiShimonoseki stopped pipe road, discharging after negative pressure；Bag
Include negative-pressure air fan, be arranged near the transmission pipeline outflow end needing to form negative-pressure air-flow, for the positive air pressure of pipeline is extracted out,
Make pipeline form windstream, including transmission pipeline, have breach at pressure boundary, for the discrepancy of door.
Further
Described valve includes lamellar door and drives the valve that described lamellar door is closed to drive cabin；Including Pneumatic pipe, in institute
State and offer notch along the radial direction of described Pneumatic pipe on Pneumatic pipe；Described flaky valve is movably embedded at described notch
In, and the radial direction along described Pneumatic pipe is turned on and off the pipe path within described Pneumatic pipe；Valve drives cabin and takes out
Wind apparatus connect.
Further
Described flaky valve is located at outside described Pneumatic pipe, and is adapted with the port of described Pneumatic pipe.
Further
Described flaky valve includes discoid valve body and the pivot being fixedly linked with described valve body.
Beneficial effect
Compared with prior art, the present invention makes transmission speed steadily round and smooth uninterrupted, and the collecting of electrical controls reduces；Thus subtracting
Lack fault odds.
Brief description
Fig. 1 is the structural representation of pneumatic pipeline transmission in prior art
Fig. 2 is the structural representation in side for the valve of the present invention；
Fig. 3 is the valve of the present invention in following perspective view；
Fig. 4 is the perspective view of the valving of the present invention；
Fig. 5 is the structural representation of door body in Fig. 3；
Fig. 6 is the perspective view of door body.
Fig. 7 is the schematic diagram of the fluting of transmission pipeline.
Fig. 8 is the structural representation being provided with counterweight of door body.
Fig. 9 drives the schematic diagram of the stereochemical structure in cabin for valve body.
Figure 10 is the schematic diagram of the pipe transmission system structure of the present invention.
Figure 11 is the structural representation of the valve gas cabin connection hair-dryer of the present invention；
The perspective view that Figure 12 opens for valve；
Figure 13 is the perspective view removing valve of Figure 11；
Figure 14 is the structural representation in the gas cabin in Figure 11.
Figure 15 is structural representation that gas cabin is split with door and open position at door；
Figure 16 be that gas cabin is split with door and at door sealing structural representation；
Figure 17 is the attachment structure schematic diagram of gas compartment-box body and transmission pipeline；
Figure 18 is door and driving plate, the attachment structure schematic diagram of drive shaft；
Figure 19 is the structural representation of gas compartment-box body；
Figure 20 is draught fan control circuit figure.
Specific embodiment
Example 1
The present invention is intended to provide a kind of structure is simple, it is easy to valving and the control method controlling；Below in conjunction with the accompanying drawings
And embodiment elaborates to the present invention.
As shown in Fig. 2 including Pneumatic pipe 7, the transport vehicle 8 running in Pneumatic pipe 1 is transmitter, pneumatic
The extractor fan 4 of setting and valving 1 on pipeline 7, described extractor fan 4 is just corresponding with the interface of pipeline and described valve
The door body of door gear, makes the active force of blower fan maximum, efficiency highest；Described extractor fan 4 is connected with door body 1 gas.Described
Door body may also be arranged on the downside of horizontal tube wall, and blower fan is arranged on upside；Including bypass gas source pipe, one end is connected to blower fan and connects
Mouthful pipeline on, the other end is connected on the pipeline of transmission, when transmitter bypass area one outer when, by the air-flow of negative-pressure air fan
Pulling, when transmitter enter be connected to bypass duct bypass area after, rush down because the air-flow power of transmission pipeline is bypassed pipe, effect
Air-flow power on transmitter reduces, and slows, imports atmospheric pressure near valve, door is reduced by absorption affinity, in gravity or bullet
In the presence of the restoring force of spring, or counterweight forces or gravity, return is opened；In valve when upper, just need spring force is installed, return
Position is opened；When transmitter passes through, valve body will not be bumped against.Described door body is articulated on duct wall or outside；Door and blower fan
Transmission pipeline between interface is that the air pressure of door drives cabin.5 is bypass duct, and 3,6 are respectively bypass duct and transmission pipeline
Connector.9 is the transmitter entrance of transmission pipeline, is open ports.2 receive conveying end for transmitter, are open ports.
Example 2
Valve is arranged on outside the pipeline of the downside of transmission pipeline, as shown in Fig. 3,4,5,6：3 is fan interface, is located at valve
Drive in the nacelle in cabin, be connected with negative-pressure air fan, for providing power for door body；2 is door body, is rotatably articulated in duct wall
Place, Fig. 3 is the state of door sealing transmission pipeline；1 is transmission pipeline, has groove 7, enters for valve body；8 is driving plate, with door
Body connects, and the gravity for its gravity after negative-pressure air-flow is withdrawn and door retracts door jointly to original position, Open valve；10 is bypass
Source of the gas tube connection ports, after transmitter crosses the seam in transfer conduit, atmospheric pressure imports, and door body can be opened.Transmitter
When just starting, in this bypass, pressure drives the pressure in cabin identical with valve.Described door 2 be lamellar or discoid door body and with
The pivot 5 that described door body is fixedly linked.Described valve drives cabin 4 to be located at outside transmission pipeline.Described bypass duct is driven with valve
Dynamic cabin 4 connects.
In Fig. 8,25 is counterweight, and 2 is door body, and 5 is drive-connecting shaft.
As shown in Figure 9：9 is inner chamber, and a camber cavity is connected with negative pressure source of the gas；Door body is enclosed in it, door body can
Swing in it.Interior cabin is cavity body；Its inner periphery is connected with transmission pipeline wall, and the breach of transmission pipeline is interior with camber cavity
Circumferential wall connect, the end face connecting fan of its camber cavity, other end is provided with passage, for atmosphere.
Wherein, valve can be located at upside or both sides；
The valve return of described valving is opened specially to initial position：
The valve of described valving is returned to initial position because of the effect of elastic-restoring force；Or
The valve of described valving is returned to initial position because of the effect of equilibrant；Or the effect of self gravitation is returned to
Initial position.
Example 3
As shown in Figure 10,1 is Pneumatic valve, is malleation or negative pressure shutoff valve, is that air connects back door unlatching with air；2 are
The open ports of transmission pipeline workstation, are located at the two ends of transmission pipeline, can arrive it is also possible to install transmitter for vertical or horizontal
The sensor of position, for controlling the instant cut out of blower fan；4 is blower fan, is located at the receiving terminal of transmission pipeline；5 is bypass duct, is
One pipeline, one end is connected to when accepting, 6 position on the pipeline in the direction that transmitter transmits, and the other end is connected to the gas of valve
7 at the fan interface in cabin Shang Huoqi cabin；15 is another bypass duct；One end is connected to when accepting, the side of transmitter transmission
To valve rear end, the other end is connected on the connecting pipe of blower fan and transmission pipeline, 15 blower fan according to receiving terminal more nearby
Can save；17 is the connecting pipe in blower fan and valve gas cabin；8 is transmitter.
Pneumatic valve is opened when standby, closes and seal transmission pipeline when by air pressure, Pneumatic valve be located on the downside of pipeline or
Upside or in front and back both sides；When downside, the unlatching restoring force of valve is from gravity；It is counterweight forces or elasticity unit when other direction
The elastic force of part；Flexible member is arranged at the door of valve, make elastic be parked in opening, be such as arranged on OR gate in rotating shaft
The side of wall；Counterweight is arranged on the opposite side of shaft core.
Another example
As illustrated in figs. 11-14：
1 is pipeline, and 2 is that door is baffle plate, 3 interfaces being connected with positive pressure fan mouth for gassing pipe, the leading to of 4 gas cabins
Road, is the passage of door outside the groove of transmission pipeline, and 5 is axle, and 6 is outer casing, 7 valve notches.
When standby, door is fixed on duct wall by axle, and in the case of stress, door can free in and out pipe by notch
Road, in the presence of self gravitation, baffle plate departs from pipeline and enters groove outer tunnel, and this state as shown in figure 12, now can in pipeline
To allow passing through of transmitter.When connection air feeder is the air blowing of gas cabin by gassing pipe to water jacket passage, because water jacket leads to
Road and door are baffle plate is sealing, and Gu Men is that baffle plate is subject to the impetus of air-flow to be rotated up with axle, enters pipe by notch
In road, block transmission pipeline, this state is as shown in figure 11.Other is ibid.
The structure chart splitting with door for gas cabin as shown in figures 15-19：
1 is transmission pipeline, and 2 is door or title block, and 3 is pump-line, and 4 is gas cabin passage, and 5 are connected by rotating shaft for axle door
In drive mechanism, 6 driving catch, 7 are connected with air for air inlet openings, and 8 is transmission pipeline open slot, door goes out from there,
Enter, 9 is drive shaft hole.Door is individually sealed with a seal box, and in figure is to draw.
Catch 6 passes through axle 5 and block 2 links together, and, in passage, block 2 is from heavy sensation of the body under normal conditions for catch 6
In the presence of power, departing from pipeline is in naturally droop state, and now pipeline is unimpeded can allow passing through of transmitter, be evacuated when connecting
When machine is evacuated to passage, catch 6 rotates in the presence of air-flow along along axle, drives block 2 to enter in pipeline from 8 notches,
Closedown of pipeline is sealed.
As shown in figure 20,101 is transformator；102 is the adjustable time relay；103 is trigger switch；104 relays.
Blower fan is electrically connected with solid-state relay outfan, and the input of solid-state relay is connected on time circuit；Time
The input of control circuit connects a trigger switch；Described time circuit be can timing the time relay.
The above, the only better embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should described be defined by scope of the claims.
Claims (20)
1. a kind of method of the reception automatic gas control for pneumatic pipeline transmission is it is characterised in that transmitting as transmitter
It is connected with bypass duct on the transmission pipeline of passage, valve and air exhauster, described air exhauster are provided with described transmission pipeline
Just corresponding to the door body of described valve with the interface of transmission pipeline；Bypass duct one end is connected on air exhauster pipeline or convulsion
In the gas cabin of the seam of machine pipeline or described valve, the other end is connected on transmission pipeline；
The method of described reception automatic gas control includes：
1) when needing to add negative pressure in transmission pipeline, air exhauster starts, and valve is controlled by negative-pressure air-flow, and transmission pipeline is airtight；
Transmitter is inhaled into transmission pipeline；2) when transmitter crosses the interface of described bypass duct and described transmission pipeline, by described
Bypass duct imports air and is depressed at described valve, the negative pressure at described valve is discharged, described valve is opened, transmitter
Door will not be bumped against, and smooth at valve.
2. it is characterised in that valve is opened, transmitter will not bump against door to method according to claim 1, smooths through valve
At door, more slow entrance receiving terminal.
3. according to the arbitrary described method of claim 1-2 it is characterised in that valve leans on gravity or elastic-restoring force or counterweight forces
Open.
4. method according to claim 1 is it is characterised in that the other end of described bypass duct is connected to and enters away from transmitter
Mouth has on the transmission pipeline in place of certain distance.
5. method according to claim 1 connects on transmission pipeline it is characterised in that entering after the transmitter certain momentum of acquisition
There is the region of described bypass duct.
6. method according to claim 5 is connected to described bypass duct it is characterised in that transmitter enters on transmission pipeline
Region after, described valve leaves transmission pipeline.
7. method according to claim 1 is it is characterised in that the caliber of bypass duct is more than the caliber of transmission pipeline.
8. method according to claim 1 it is characterised in that：Valve drives cabin to be located at outside transmission pipeline.
9. method according to claim 8 it is characterised in that：Described bypass duct drives cabin to be connected with valve.
10. a kind of device of the reception automatic gas control for pneumatic pipeline transmission is it is characterised in that transmitting as transmitter
It is connected with bypass duct on the transmission pipeline of passage, valve and negative-pressure air fan, described negative pressure are provided with described transmission pipeline
The interface of blower fan and transmission pipeline is just corresponding to the door body of described valve；
Described bypass duct, one end is connected at described valve or on the air channel of blower fan, and the other end is connected to what transmitter transmitted
On pipeline, for when transmitter passes at valve soon, dischargeing to negative pressure at valve immediately, valve is made to open；Described valve,
It is arranged at the opening of transmission pipeline；For closing transmission pipeline under suction function, after release negative pressure, open transmission pipeline；Institute
State negative-pressure air fan, be arranged near the transmission pipeline outflow end needing to form negative-pressure air-flow, for by the positive air pressure of transmission pipeline
Extract out, so that transmission pipeline is formed windstream and make described valve close transmission pipeline, described transmission pipeline under suction function
On have breach, for the discrepancy of the door body of described valve.
11. devices according to claim 10 it is characterised in that：Described valve includes lamellar door and drives described lamellar door
The valve closed drives cabin；Including Pneumatic pipe, described Pneumatic pipe offers notch along the radial direction of described Pneumatic pipe；
Described lamellar door is movably embedded in described notch, and the radial direction along described Pneumatic pipe is turned on and off described pneumatic tube
Pipe path within road；Valve drives cabin to be connected with extractor fan.
12. devices according to claim 11 it is characterised in that：Described lamellar door is located at outside described Pneumatic pipe, and
It is adapted with the port of described Pneumatic pipe.
13. devices according to claim 11 it is characterised in that：Described lamellar door include discoid valve body and with
The pivot that described valve body is fixedly linked.
A kind of 14. methods of the reception automatic gas control for pneumatic pipeline transmission are it is characterised in that transmitting as transmitter
It is connected with bypass duct on the transmission pipeline of passage, valve and air exhauster, described air exhauster are provided with described transmission pipeline
Just corresponding to the door body of described valve with the interface of transmission pipeline；Bypass duct one end is connected on air exhauster pipeline or convulsion
In the gas cabin of the seam of machine pipeline or described valve, the other end is connected on transmission pipeline；
The method of described reception automatic gas control includes：
1) set open ports work station in two ports of transmission pipeline, in work station Near Pipelines, described air exhauster and reception are installed
Air control valve；
2) transmitter is put into transmitting terminal open ports, triggering receiving terminal blower fan starts, valve closing forms negative in transmission pipeline
Pressure, by transmitter suck transmission pipeline in, transmitter close to valve when, by described bypass duct import air be depressed into described valve
At door, the negative pressure at valve is discharged, valve opening, transmitter crosses entrance receiving terminal at valve by inertia.
A kind of 15. methods of the reception automatic gas control for pneumatic pipeline transmission are it is characterised in that transmitting as transmitter
It is connected with bypass duct on the transmission pipeline of passage, valve and air exhauster, described air exhauster are provided with described transmission pipeline
Just corresponding to the door body of described valve with the interface of transmission pipeline；Bypass duct one end is connected on air exhauster pipeline or convulsion
In the gas cabin of the seam of machine pipeline or described valve, the other end is connected on transmission pipeline；
The method of described reception automatic gas control includes：
1) it is respectively arranged at two ends with two sections of vertical transmission pipelines in transmission pipeline, set open ports in two ports of two transmission pipelines
Work station, installs described air exhauster near vertical transmission pipeline and receives Air control valve；2) transmitter is put into transmitting terminal to open
Opening, triggering receiving terminal blower fan starts, valve closing, forms negative pressure in transmission pipeline, transmitter is sucked in transmission pipeline, passes
Defeated device close to valve when, valve opening, transmitter by inertia cross valve enter the vertical transmission pipeline of receiving terminal, fall into by deadweight and connect
Receiving end mouth.
16. methods according to claim 14 it is characterised in that：Air control valve passes through bypass duct and neighbouring transmission pipeline
Connect；When transmitter crosses the bypass duct interface of transmission pipeline, the air pressure in valve gas cabin is bypassed pipe release, and valve is opened.
17. methods according to claim 14 it is characterised in that：Transmission pipeline between valve and fan interface is valve
Air pressure drive cabin；The air pressure of valve drives cabin to split with valve.
18. methods according to claim 14 it is characterised in that：Transmission pipeline between valve and fan interface is valve
Air pressure drive cabin；Described valve is flaky valve, outside described transmission pipeline, and the breach phase with described Pneumatic pipe
Adaptation, described flaky valve includes a piece, and this piece is connected with driving plate, is arranged on air pressure driving out of my cabin and pluggable pipeline lacks
The place of mouth, for sealing transmission pipeline when closing.
19. methods according to claim 14 it is characterised in that：Described valve is flaky valve, described flaky valve
The restoring force of door piece, is gravity or counterweight forces or elastic force or magnetic force or electric power.
A kind of 20. devices of the reception automatic gas control for pneumatic pipeline transmission are it is characterised in that transmitting as transmitter
It is connected with bypass duct on the transmission pipeline of passage, control valve and negative-pressure air fan are provided with described transmission pipeline, described negative
The interface of pressure fan and transmission pipeline is just corresponding to the door body of the valve of described control valve；
Described bypass duct, one end is connected on the gas control room of control valve or on the air channel of blower fan, and the other end is connected to transmitter
On the transmission pipeline transmitting, for, after transmitter crosses the transmission pipeline bypass mouth of pipe, releasing to negative pressure at the valve of control valve immediately
Bleed off, so that the valve of control valve is opened；Described control valve, is arranged at the opening of transmission pipeline；For in suction function ShiShimonoseki
Close transmission pipeline, after release negative pressure, open transmission pipeline；Described negative-pressure air fan, is arranged on the transmission pipeline of receiving terminal, is used for
The positive air pressure of transmission pipeline is extracted out, so that transmission pipeline is formed windstream and make the valve of described control valve under suction function
Closing transmission pipeline, described transmission pipeline includes transmission pipeline opening, for the discrepancy of the door piece of the valve of described control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810305193.6A CN102211713B (en) | 2008-10-13 | 2008-10-27 | Automatic pneumatic control method and device for reception |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103048914 | 2008-10-13 | ||
| CN200810304891.4 | 2008-10-13 | ||
| CN200810304891 | 2008-10-13 | ||
| CN200810305193.6A CN102211713B (en) | 2008-10-13 | 2008-10-27 | Automatic pneumatic control method and device for reception |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102211713A CN102211713A (en) | 2011-10-12 |
| CN102211713B true CN102211713B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810305193.6A Active CN102211713B (en) | 2008-10-13 | 2008-10-27 | Automatic pneumatic control method and device for reception |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759020B (en) * | 2008-10-13 | 2016-06-08 | 北京银融科技有限责任公司 | The method of the automatic gas control of a kind of reception and device |
| CN103449182A (en) * | 2013-09-02 | 2013-12-18 | 甘默 | Totally-closed pneumatic transport pipeline |
| CN107826764B (en) * | 2017-10-30 | 2024-05-03 | 银川东方气力运输设备有限公司 | Self-turning type miniaturized pneumatic receiving and transmitting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1436983A (en) * | 1974-02-07 | 1976-05-26 | British Hydromechamics Researc | Flow energising means for pneumatic pipeline conveyors |
| GB1514607A (en) * | 1975-11-03 | 1978-06-14 | Georgia Tech Res Inst | Pneumatic transport system with blocking valve control |
| CN2632037Y (en) * | 2003-06-30 | 2004-08-11 | 陆洪瑞 | Valve for controlling note pipe sectional operation |
| CN101759020A (en) * | 2008-10-13 | 2010-06-30 | 北京银融科技有限责任公司 | Method for automatic gas control of reception and device |
-
2008
- 2008-10-27 CN CN200810305193.6A patent/CN102211713B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1436983A (en) * | 1974-02-07 | 1976-05-26 | British Hydromechamics Researc | Flow energising means for pneumatic pipeline conveyors |
| GB1514607A (en) * | 1975-11-03 | 1978-06-14 | Georgia Tech Res Inst | Pneumatic transport system with blocking valve control |
| CN2632037Y (en) * | 2003-06-30 | 2004-08-11 | 陆洪瑞 | Valve for controlling note pipe sectional operation |
| CN101759020A (en) * | 2008-10-13 | 2010-06-30 | 北京银融科技有限责任公司 | Method for automatic gas control of reception and device |
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| CN102211713A (en) | 2011-10-12 |
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