CN106337847B - A kind of fire resistant doorsets atmospheric control - Google Patents
A kind of fire resistant doorsets atmospheric control Download PDFInfo
- Publication number
- CN106337847B CN106337847B CN201610999974.4A CN201610999974A CN106337847B CN 106337847 B CN106337847 B CN 106337847B CN 201610999974 A CN201610999974 A CN 201610999974A CN 106337847 B CN106337847 B CN 106337847B
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- valve
- outlet
- import
- gas
- normally opened
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses the fire resistant doorsets atmospheric control in fire resistant doorsets field, its source of the gas is connected to Pneumatic reversal valve one and choke valve one, and shuttle valve one, air accumulator and two normally opened enabling valves are connected in the outlet of Pneumatic reversal valve one all the way；The port of export of choke valve one is connected to temperature-sensitive relief valve through shuttle valve one, and the outlet of shuttle valve one connects the gas control end of Pneumatic reversal valve one；The outlet of air accumulator is followed by cylinder one end, choke valve two and Pneumatic reversal valve two through pressure-reducing valve two, the outlet termination shuttle valve three of Pneumatic reversal valve two, the outlet of normally opened enabling valve connects the import of shuttle valve two respectively, and the outlet of shuttle valve two connects the import of shuttle valve three, and the outlet of shuttle valve three connects the other end of cylinder；The gas control mouth of Pneumatic reversal valve two connects the outlet that gas holds unit and choke valve three, and the outlet of choke valve two is connected with the import of choke valve three, and flygate button connects are between the outlet of choke valve two and the import of choke valve three.When running into fire, fire resistant doorsets are closed automatically, have good safety protection function.
Description
Technical field
The present invention relates to a kind of pneumatic control and execution system for being used to control fire resistant doorsets.Suitable for fire partition door or its
It is inconvenient to use the occasion of the control door switch of electric-control system.
Background technology
Fire resistant doorsets of the prior art typically control the switch of door using automatically controlled, electric or atmospheric control, are typically
Electrical system carries out using electric signal control YE or on the door switch motion by solenoid valve control pneumatic actuator, leads to
Excess temperature sensor and Smoke Sensor etc. obtain fire or temperature change signal, so as to be entered by control system according to these signals
The corresponding control of row.But electric wiring has using upper limitation, when fire occurs, electric wiring and electric components are difficult
Ensure normal use, be also not suitable for the use of electrical system in some inflammable and explosive occasions in addition.
The content of the invention
It is an object of the invention to provide a kind of system of full gas control to carry out the control of fire prevention sliding door switch, and according to fire
Calamity or temperature change are controlled accordingly.
The object of the present invention is achieved like this：A kind of fire resistant doorsets atmospheric control, including for driving fire resistant doorsets
The cylinder of switch, it is respectively arranged in the normally opened enabling valve one in outside and normally opened enabling valve two in door, is respectively arranged in outside in door
Door open button one and door open button two, source of the gas and air accumulator, the source of the gas is connected to the He of Pneumatic reversal valve one after decompression
The entrance point of choke valve one, Pneumatic reversal valve one are air control binary three-way valve, and the port of export of Pneumatic reversal valve one is divided into four tunnels, the
An import of shuttle valve one is connected all the way, and the air accumulator is connected in the second tunnel through check valve, and remaining two-way is respectively turned on normally opened open
The entrance point of gate valve one and normally opened enabling valve two；Another import of the outlet termination shuttle valve one of choke valve one, shuttle valve one go out
Mouth is divided into two-way, connects the gas control end of Pneumatic reversal valve one all the way, another way is connected to the import of temperature-sensitive relief valve；Air accumulator goes out
Mouth is divided into three tunnels after pressure-reducing valve two, connects one end of cylinder all the way, the second tunnel connects the import of choke valve two, and the 3rd tunnel connects gas control and changed
Import to valve two, the Pneumatic reversal valve two are air control binary three-way valve, the outlet termination shuttle valve three of Pneumatic reversal valve two
The outlet of one import, normally opened enabling valve one and normally opened enabling valve two connects two imports of shuttle valve two, the outlet of shuttle valve two respectively
Another import of shuttle valve three is connect, the outlet of the shuttle valve three connects the other end of cylinder；The gas control mouth of Pneumatic reversal valve two is all the way
Connect gas and hold unit, be also connected to the outlet of choke valve three all the way, the outlet of choke valve two is connected with the import of choke valve three, opened
The import of door button one and door open button two is connected between the outlet of choke valve two and the import of choke valve three.
It, which is improved, is to be connected with filter, pressure-reducing valve one and oil gas point between the source of the gas and Pneumatic reversal valve one in turn
From device.
To ensure cylinder reliable in action, one end of the cylinder is rod chamber, and the other end of the cylinder is rodless cavity, nothing
The passage section of rod cavity is more than 1.2 times of the passage section of rod chamber.In the case that there is air pressure at cylinder both ends, cylinder also can
Action, without by the complete pressure release of the pressure of side.
Be as a further improvement on the present invention, the door open button one and door open button two are push buttonvalve, press by
Air inlet connects air during button, inlet close during release button.The normally opened enabling valve one and normally opened enabling valve two are two
The Push-and-pull valve of station, one of station close the inlet and outlet of Push-and-pull valve, and another station connects the inlet and outlet of Push-and-pull valve.
It is the cavity volume that can be charged and discharged gas that the gas, which holds unit,.The temperature-sensitive relief valve is daily to be off state, after heated triggering, heat
The import of quick relief valve connects air through outlet.
During present invention work, by that by door open button one or door open button two, the piston rod of cylinder can be stretched out, make fire prevention
Door is opened, recoverable cylinder after delay；The normally opened enabling valve one of pull-up, normally opened enabling valve two, then cylinder stretch out always, it is corresponding anti-
Vent is always on, presses normally opened enabling valve one, normally opened enabling valve two, and cylinder is withdrawn, and fire resistant doorsets are closed；Gas is disconnected during fire alarm
Source, the supply of normally opened enabling valve one and normally opened enabling valve two is disconnected, is supplied by air accumulator, it is allowed to door open button one or door open button
Two control cylinders act certain number, and it acts action frequency and determined by the capacity of air accumulator.The device causes the control of fire resistant doorsets
System be achieved completely by pneumatic control mode, when running into fire, fire resistant doorsets can close automatically, at the same also can manual control its
Switch, has good safety protection function, and it uses relatively reliable.
Brief description of the drawings
Fig. 1 is the fundamental diagram of the present invention.
Wherein, 1a door open buttons one, 1b door open buttons two, 2 check valves, 3a choke valves three, 3b choke valves two, 3c choke valves
One, 4 gas hold unit, and 5a Pneumatic reversal valves two, 5b Pneumatic reversal valves one, 6a shuttle valves three, 6b shuttle valves two, 6c shuttle valves one, 7a is normally opened
Enabling valve one, the normally opened enabling valves two of 7b, 8 cylinders, 8a rodless cavities, 8b rod chambers.
Embodiment
As shown in figure 1, be a kind of fire resistant doorsets atmospheric control, its cylinder 8 for including being used for driving fire prevention door switch,
Be respectively arranged in the normally opened 7a of enabling valve one and the normally opened 7b of enabling valve two in outside in door, be respectively arranged in the enabling in outside in door by
The 1a of the button one and 1b of door open button two, source of the gas 14 and air accumulator 10, source of the gas 14 is by filter 13, the 9b of pressure-reducing valve one and Oil-gas Separation
The 5b of Pneumatic reversal valve one and the 3c of choke valve one entrance point are connected to after device 12, the 5b of Pneumatic reversal valve one is gas control two-position three way
Valve, the 5b of Pneumatic reversal valve one port of export are divided into four tunnels, and the first via connects the 6c of shuttle valve one import, and the second tunnel is through check valve
2 connect the air accumulator 10, and remaining two-way is respectively turned on the normally opened 7a of enabling valve one and the normally opened 7b of enabling valve two entrance point；Throttling
The 3c of valve one outlet termination shuttle valve one 6c another import, the 6c of shuttle valve one outlet is divided into two-way, connects Pneumatic reversal valve all the way
One 5b gas control end, another way are connected to the import of temperature-sensitive relief valve 11；The outlet of air accumulator 10 is divided into after the 9a of pressure-reducing valve two
Three tunnels, one end of cylinder 8 is connect all the way, one end of the cylinder 8 is rod chamber 8b；Second tunnel connects the 3b of choke valve two import, and the 3rd
Road connects the 5a of Pneumatic reversal valve two import, and the 5a of Pneumatic reversal valve two is air control binary three-way valve, the 5a's of Pneumatic reversal valve two
An outlet termination shuttle valve three 6a import, the normally opened 7a of enabling valve one and the normally opened 7b of enabling valve two outlet meet the 6b of shuttle valve two respectively
Two imports, the 6b of shuttle valve two outlet connects the 6a of shuttle valve three another import, and the 6a of shuttle valve three outlet meets the another of cylinder 8
End, the other end of the cylinder 8 is rodless cavity 8a；The normally opened 7a of the enabling valve one and normally opened 7b of enabling valve two is the push-and-pull of two stations
Valve, one of station close the inlet and outlet of Push-and-pull valve, and another station connects the inlet and outlet of Push-and-pull valve.Pneumatic reversal valve
Two 5a gas control mouth connects gas and holds unit 4 all the way, and it is the cavity volume that can be charged and discharged gas that gas, which holds unit 4,；The 5a of Pneumatic reversal valve two gas control
Mouth is also connected to the 3a of choke valve three outlet all the way, and the 3b of choke valve two outlet is connected with the 3a of choke valve three import, opens the door
The 1a of button one and the 1b of door open button two import are connected between the 3b of choke valve two outlet and the 3a of choke valve three import.Open the door
The 1a of the button one and 1b of door open button two is push buttonvalve, and when pressing button, air inlet connects air through valve element, air inlet during release button
Mouth is closed.
Rodless cavity 8a passage section is more than 1.2 times of rod chamber 8b passage section.
The temperature-sensitive relief valve 11 is daily to be off state, and after heated triggering, the import of temperature-sensitive relief valve 11 is through going out
Mouth connects air.
When the device works, compressed air is provided by source of the gas 14, passes through filter 13, the 9b of pressure-reducing valve one, gs-oil separator
12 respectively enter the 5b of Pneumatic reversal valve one and the 3c of choke valve one, enter Pneumatic reversal valve one by the 3c of choke valve one, the 6c of shuttle valve one
5b gas control end, gas control end obtain signal, and the 5b of Pneumatic reversal valve one commutates to left end, and compressed air is connected, commutated by gas control
The 5b of valve one enters check valve 2, is inflated to air accumulator 10, while the compressed air respectively enters cylinder by the 9a of pressure-reducing valve two
8 rod chamber 8b, the 5a of Pneumatic reversal valve two, the 3b of choke valve two, then unit 4 is held to gas by the 3a of choke valve three and inflated, lead to simultaneously
To the 5a of Pneumatic reversal valve two gas control end, the 5a gas controls end of Pneumatic reversal valve two obtains signal, and the 5a of Pneumatic reversal valve two commutates to a left side
End, closes the road gas circuit.Now the rod chamber 8b of cylinder 8 has pressure, rodless cavity 8a no pressures, and cylinder is in retracted state, right
The fire resistant doorsets answered are closed.
When pressing two 1b of the 1a of door open button one or door open button, the 1a of door open button one or the 1b of door open button two are arranged
Gas, the pressure that gas holds in unit 4 pass through the 3a Quick air-discharges of choke valve three so that the 5a of Pneumatic reversal valve two gas control end decompression, gas
Control reversal valve two 5a valve element is moved to right side under the action of the spring, and the 5a of Pneumatic reversal valve two connects gas circuit, so that from decompression
The pressure to come at the 9a of valve two leads to the 6a of shuttle valve three by the 5a of Pneumatic reversal valve two, then cylinder 8 is led in the outlet through the 6a of shuttle valve three
Rodless cavity 8a.Now the rod chamber 8b and rodless cavity 8a of cylinder 8 pressurize simultaneously, because rodless cavity 8a passage section is rod chamber
More than 1.2 times of 8b passage section, then rodless cavity 8a act on cylinder piston pressure it is big, cylinder piston is to rod chamber 8b mono-
Side is moved, and cylinder piston rod stretches out, and corresponding fire resistant doorsets are opened.
After the pressing 1a of the door open button one or 1b of door open button two hand is unclamped, the 1a of door open button one or the 1b of door open button two
It can set back under the action of the spring, now the 1a of door open button one or the 1b of door open button two are no longer vented, then compressed air passes through
The 3b of choke valve two, the 3a of choke valve three continue to hold unit 4 and the 5a of Pneumatic reversal valve two gas control end inflating pressure to gas, when in pressure
When being raised to certain value, the 5a of Pneumatic reversal valve two gas control end active force overcomes spring force valve is commutated, and returns to the left side of valve, compression
Air does not continue to supply to rodless cavity 8a, and the row that the rodless cavity 8a of cylinder 8 pressure passes through the 5a of Pneumatic reversal valve two simultaneously
Gas port pressure release, now rodless cavity 8a no pressures, rod chamber 8b have pressure, the piston rod withdrawal of cylinder 8, corresponding fire resistant doorsets closing.
After the 1a of the door open button one or 1b of door open button two is unclamped, the piston rod of cylinder 8 stretches out the action master withdrawn again
The 5a of Pneumatic reversal valve two commutation is depended on, its time is filled from holding unit 4 to gas by the 3b of the choke valve two and 3a of choke valve three
The time of gas determines.The regulation 3b of the choke valve two and 3a of choke valve three makes to lead to the throughput reduction that gas holds unit 4, then cylinder stretches out
The time withdrawn again just extends；Otherwise the time just shortens.
And press the how long rear 5a of Pneumatic reversal valve two of the 1a of the door open button one or 1b of door open button two and start to commutate, by saving
Flow the 3a of valve three and determine that the flow that the 3a of choke valve three passes through is bigger, then need to press the 1a's of the door open button one or 1b of door open button two
Time is shorter, on the contrary then longer.
In addition, the 5b of Pneumatic reversal valve one another way compressed air by the normally opened 7a of enabling valve one, the normally opened 7b of enabling valve two,
Rodless cavity 8a, the normally opened 7a of enabling valve one, the normally opened 7b of enabling valve two that the 6b of the shuttle valve two and 6a of shuttle valve three leads to cylinder 8 are a kind of push-and-pulls
Valve, there are two positions, when pressing the normally opened 7a of enabling valve one or normally opened enablings two 7b of valve, as illustrated, valve element is in bottom, gas
Road is closed, and the rodless cavity 8a of cylinder 8 pressure passes through the normally opened 7a of enabling valve one, the normally opened 7b of enabling valve two exhaust outlet pressure release, cylinder 8
Piston is withdrawn under right side rod chamber 8b pressure；As the normally opened 7a of enabling valve one of pull-up, normally opened two 7b of enabling valve, valve element is in
Upper, gas circuit is connected, and compressed air leads to rodless cavity 8a, stretch out cylinder piston rod by the 6b of shuttle valve two, the 6a of shuttle valve three.
After environment temperature is higher than the setting value of temperature-sensitive relief valve 11, temperature-sensitive relief valve 11 starts to act, and valve is in row
Gaseity, so as to cause the 5b of Pneumatic reversal valve one gas control end decompression, the 5b of Pneumatic reversal valve one commutations, valve element has arrived right-hand member, should
Gas circuit is closed, and source of the gas 14 is led to the gas circuit of check valve 2, the normally opened 7a of enabling valve one and the normally opened 7b of enabling valve two and is closed so that often
Which kind of state no matter the 7a of the enabling valve one and normally opened 7b of enabling valve two be in, and the 6b of shuttle valve two and the 6a of shuttle valve three gas circuit are all by normal
The 7a of enabling valve one, the normally opened 7b of enabling valve two and the 5b of Pneumatic reversal valve one exhaust outlet pressure release so that the rodless cavity 8a of cylinder 8 without
Pressure, cylinder are in retracted mode, are closed door.Pressure-reducing valve two is now passed through by air accumulator 10 in air-channel system
9a is to providing pressure at the rod chamber 8b and the 5a of Pneumatic reversal valve two, the 3b of choke valve two of cylinder 8.Now press the 1a of door open button one
Or the 1b of door open button two, cylinder 8 stretch out, withdrawn after delay as described above.Until the gas storage in air accumulator 10 exhausts, cylinder 8
Do not reoperate.
Therefore the system can realize that function is：By the way that by the 1a of the door open button one or 1b of door open button two, cylinder can be stretched out
Piston rod, open fire resistant doorsets, cylinder withdrawn after delay；The normally opened 7a of enabling valve one of pull-up, the normally opened 7b of enabling valve two, then cylinder
Stretch out always, corresponding fire resistant doorsets are always on, press the normally opened 7a of enabling valve one, the normally opened 7b of enabling valve two, and cylinder is withdrawn, fire prevention
Door is closed；Source of the gas 14 is disconnected during fire alarm, the normally opened 7a of enabling valve one and the normally opened 7b of enabling valve two supply is disconnected, is supplied by air accumulator 10
Gas, it is allowed to which the 1a of the door open button one or 1b of door open button two control cylinders act certain number, and it acts action frequency by air accumulator
10 capacity determines.
The invention is not limited in above-described embodiment, on the basis of technical scheme disclosed by the invention, the skill of this area
Art personnel are according to disclosed technology contents, it is not necessary to which performing creative labour can makes one to some of which technical characteristic
A little to replace and deform, these are replaced and deformation is within the scope of the present invention.
Claims (7)
1. a kind of fire resistant doorsets atmospheric control, including for driving the cylinder of fire prevention door switch（8）, be respectively arranged in door
The normally opened enabling valve one in outside（7a）With normally opened enabling valve two（7b）, be respectively arranged in the door open button one in outside in door（1a）With
Door open button two（1b）, source of the gas（14）And air accumulator（10）, it is characterised in that：The source of the gas（14）Gas is connected to after decompression
Control reversal valve one（5b）With choke valve one（3c）Entrance point, Pneumatic reversal valve one（5b）For air control binary three-way valve, gas control changes
To valve one（5b）The port of export be divided into four tunnels, the first via connects shuttle valve one（6c）An import, the second tunnel is through check valve（2）Connect
Lead to the air accumulator（10）, remaining two-way is respectively turned on normally opened enabling valve one（7a）With normally opened enabling valve two（7b）Entrance point；
Choke valve one（3c）Outlet termination shuttle valve one（6c）Another import, shuttle valve one（6c）Outlet be divided into two-way, connect all the way
Pneumatic reversal valve one（5b）Gas control end, another way is connected to temperature-sensitive relief valve（11）Import；Air accumulator（10）Outlet warp
Pressure-reducing valve two（9a）After be divided into three tunnels, connect cylinder all the way（8）One end, the second tunnel connects choke valve two（3b）Import, the 3rd tunnel
Connect Pneumatic reversal valve two（5a）Import, the Pneumatic reversal valve two（5a）For air control binary three-way valve, Pneumatic reversal valve two
（5a）Outlet termination shuttle valve three（6a）An import, normally opened enabling valve one（7a）With normally opened enabling valve two（7b）Outlet point
Shuttle valve two is not connect（6b）Two imports, shuttle valve two（6b）Outlet connect shuttle valve three（6a）Another import, the shuttle valve three
（6a）Outlet connect cylinder（8）The other end；Pneumatic reversal valve two（5a）Gas control mouth connect all the way gas hold unit（4）, also one
Road is connected to choke valve three（3a）Outlet, choke valve two（3b）Outlet and choke valve three（3a）Import be connected, enabling is pressed
Button one（1a）With door open button two（1b）Import be connected to choke valve two（3b）Outlet and choke valve three（3a）Import it
Between.
A kind of 2. fire resistant doorsets atmospheric control according to claim 1, it is characterised in that：The source of the gas（14）With gas
Control reversal valve one（5b）Between be connected with filter in turn（13）, pressure-reducing valve one（9b）And gs-oil separator（12）.
A kind of 3. fire resistant doorsets atmospheric control according to claim 1 or 2, it is characterised in that：The cylinder（8）'s
One end is rod chamber（8b）, the cylinder（8）The other end be rodless cavity（8a）, rodless cavity（8a）Passage section be rod chamber
（8b）More than 1.2 times of passage section.
A kind of 4. fire resistant doorsets atmospheric control according to claim 1 or 2, it is characterised in that：The door open button
One（1a）With door open button two（1b）For push buttonvalve, air inlet connects air when pressing button, inlet close during release button.
A kind of 5. fire resistant doorsets atmospheric control according to claim 1 or 2, it is characterised in that：The normally opened enabling
Valve one（7a）With normally opened enabling valve two（7b）For the Push-and-pull valve of two stations, one of station closes the inlet and outlet of Push-and-pull valve
Close, another station connects the inlet and outlet of Push-and-pull valve.
A kind of 6. fire resistant doorsets atmospheric control according to claim 1 or 2, it is characterised in that：The gas holds unit
（4）For the cavity volume that can be charged and discharged gas.
A kind of 7. fire resistant doorsets atmospheric control according to claim 1 or 2, it is characterised in that：The temperature-sensitive release
Valve（11）It is daily to be off state, after heated triggering, temperature-sensitive relief valve（11）Import through outlet connect air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610999974.4A CN106337847B (en) | 2016-11-14 | 2016-11-14 | A kind of fire resistant doorsets atmospheric control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610999974.4A CN106337847B (en) | 2016-11-14 | 2016-11-14 | A kind of fire resistant doorsets atmospheric control |
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| CN106337847A CN106337847A (en) | 2017-01-18 |
| CN106337847B true CN106337847B (en) | 2017-12-22 |
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ID=57841848
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610999974.4A Active CN106337847B (en) | 2016-11-14 | 2016-11-14 | A kind of fire resistant doorsets atmospheric control |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552573B (en) * | 2019-08-29 | 2024-04-26 | 无锡海核装备科技有限公司 | Pneumatic door driving device |
| CN111677402A (en) * | 2020-07-14 | 2020-09-18 | 无锡市华通气动制造有限公司 | Prevent fire door control integrated system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6006650A (en) * | 1996-12-20 | 1999-12-28 | Adams; Ronald A. | Power control apparatus for a sliding door |
| CN201354645Y (en) * | 2008-12-20 | 2009-12-02 | 黄建设 | Automatic opening/closing locking device of coal mine ventilation door |
| CN102094859B (en) * | 2010-12-20 | 2013-02-27 | 无锡气动技术研究所有限公司 | Anti-explosion and ventilation control system of pneumatic control motor |
| CN102747916B (en) * | 2012-07-17 | 2014-09-10 | 常州华明电子设备有限公司 | Shielding door control system, shielding door device and shielding door control method |
| CN103206424B (en) * | 2013-04-22 | 2015-09-09 | 浙江中德自控科技股份有限公司 | A kind of hand automatic control system of Pneumatic double-acting actuation mechanism band gas holder |
| CN203441856U (en) * | 2013-07-19 | 2014-02-19 | 佛吉亚(青岛)排气***有限公司 | Pure gas-circuit hands-starting control structure |
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2016
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| CN106337847A (en) | 2017-01-18 |
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