CN2052401U - Air pressure flat floor device for the elevator - Google Patents
Air pressure flat floor device for the elevator Download PDFInfo
- Publication number
- CN2052401U CN2052401U CN 89209881 CN89209881U CN2052401U CN 2052401 U CN2052401 U CN 2052401U CN 89209881 CN89209881 CN 89209881 CN 89209881 U CN89209881 U CN 89209881U CN 2052401 U CN2052401 U CN 2052401U
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- CN
- China
- Prior art keywords
- elevator
- air
- relay
- air pressure
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model relates to an automatic floor-levelling auxiliary device with air pressure for an elevator cage. The utility model adopts a set of air pressure device, and an eccentric gear is arranged at a spring part of a brake ribbon of an elevator traction engine. When external power is failed, the eccentric gear which is pneumatic acts, the electric brake ribbon of the traction engine is loosened, the elevator cage drops downward under the action of self weight, and the speed of the elevator cage is controlled by the energy consumption damping of additional capacitance, so that the effect of levelling is achieved. The utility model does not change any original electric circuit and device of the circuit elevator, and has the advantages of less investment, convenient installation and high safety.
Description
The utility model relates to elevator cage air pressure automatic leveling auxiliary device.
Elevator in use because electrical network has a power failure suddenly, under the situation that backup power can not in time be powered, elevator cage be stuck in usually in the hoistway two-layer between, the passenger is stranded.Be to climb out of generally speaking, the accident of falling often occurs stabbing, falling through cab roof window mouth, very dangerous.After reaching grid power blackout, cab automatic leveling, the purpose that safety is arrived at a station.The way that has at present is to adopt battery pack, and the auto switching electric source power supply perhaps adopts combustion engine to wait the auxiliary device that makes the cab flat bed from the moving power supply of chain Kai, and still, the cost of these two kinds of methods is all very expensive.For example the cadmium-nickel storage battery of 110V20AN needs 1.5 ten thousand yuan approximately, and the cost of lead battery group is higher, and the investment of internal combustion unit is big, safeguards very trouble.
The purpose of this utility model is to design a cab air pressure automatic leveling auxiliary device that cab is faced when being enclosed within grid power blackout to stand flat bed.
This device does not change original circuit of elevator and equipment, about 4,000 yuan of required investment.
The purpose of this utility model is realized by following technical proposals:
Spring position at elevator tractor brake band is provided with a decentralizing device, when the moment that dispatch from foreign news agency stops, pneumatic decentralizing device action, open the tractor brake band, cab or counterweight are fallen downwards under the effect of deadweight, when weight is pressed the acceleration/accel auto acceleration, tractor idle running, stator coil are sent the normal electric current that becomes of size with the speed of rotating speed under external lead compensation of hauling oneself willingly into electric capacity, produce damping brake, the control lapse rate, when flat bed reed switch relay (JCz) flat bed moved, air pressure stopped supplying, off-centre resets, normal braking.When mains supply, interlocking automatic switching control equipment (DXJ) stops auxiliary power supply, the lift circuit normal operation.
Below in conjunction with embodiment of description of drawings.
Accompanying drawing 1 is the utility model management scheme drawing.
Accompanying drawing 2 is an electrical schematic diagram;
Accompanying drawing 3 is the external compensation damping capacitor of a tractor stator circuit diagram.
The utility model mainly is made of the damping capacitor circuit of electrical motor (D), air pump (Q β), air tank (QT) air relay (Jy), valve motor switch (KQ), piston (HS), eccentric wheel (PL), 48V standby battery and access tractor stator coil.Electrical motor links by belt and air pump, air tank links by flexible pipe and piston, piston links by connecting rod and eccentric wheel, eccentric wheel is between the tractor brake band, and air tank (QT) is provided with air relay (Jy), is provided with valve motor switch (KQ) between air tank (QT) and the piston (HS), valve motor switch (KQ) links by intermediate relay (Jz) and 48v standby battery, and standby battery is in parallel with rectifier.In addition, on the tractor stator coil, insert damping capacitor circuit (as accompanying drawing 3).
During supply regular power, rectifier through the effect of voltage regulator (vT), keeps the control power line voltage (as accompanying drawing 2) of flat bed auxiliary device to the 48v battery charge on the one hand; (as accompanying drawing 1) on the other hand, electrical motor (D) drive air pump (QB) to air tank (QT) inflation, and air relay (Jy) stops or the air pump that turns round automatically in the high and low air pressure position of demarcating, and makes and often maintains 8kg/cm in the air tank
2Bar pressure.
After power supply has a power failure, phase sequence relay (DXJ) outage, normally closed contact is connected intermediate relay device (Jz), and standby 48v direct current circuit is connected power supply, and the low-voltage lighting circuit in the cab is connected, and keeps the illumination in the outage cab.
Cab this moment is if be parked in deceleration dry-reed tube (JG1) when above, valve motor switch (KQ) is opened, air pressure in the air tank (QT), promote piston (HS) and rotate eccentric wheel (PL) by lever, play the part of out brake band (SD), the tractor wheel is under the effect of cab or counterweight deadweight, be rotated down, cab is fallen automatically with acceleration/accel, and external compensation damping capacitor C drops into the tractor stator winding automatically under the effect of relay (Jz1), produce capacity current, play the damping brake effect of rotor, when arriving (JG1) decelerate position, Jz2 is with second group of electric capacity input in parallel, produce bigger capacity current, strengthen shock damping action.Cab or counterweight deadweight continue speed limit falls, when reaching flat bed relay J G2, and the action of Jk3 contact, valve motor switch (KQ) cuts out, and piston is stopped the supple of gas or steam, and eccentric wheel resets, and brake band is braked cab and is stopped transport under the effect of spring (TF), reach the purpose of flat bed.
At this moment, the sound equipment LB that Jz3 connects in the cab simultaneously sends out signal, and the button that opens Door by Hand (KM) on door motor (KMD) slowly opens the door, and opens the door when putting in place, and Jz is bumped outage, and the auxiliary device power supply all stops.
If the malfunctioning or cab of flat bed relay J G2 is lower than stop Jz3 action Jz is connected, KQ can open once more automatically, and the one-period action above the circulation is stopping cab down behind one deck flat bed.
When mains supply, phase sequence relay DXJ action, the Jz outage, the control power supply of auxiliary leveling device all cuts off the power supply, and elevator drops into the supply regular power state.
If artificial the power failure cut-off, cab is originally in level position, and Jz3 makes the accessory feed outage, and Jz can't switch on, auxiliary leveling device akinesia.
Behind the pneumatic flat bed of auxiliary device, the pressure decay in the QT, if be lower than minimum pre-governor pressure, Jy connects air pump automatically, continues to replenish and calms the anger, wait to reach nominal pressure after Jy stop air pump automatically.
After preventing the auxiliary device flat bed, the error accident of opening the door automatically and occurring, only design opens Door by Hand safer.
After preventing pneumatic switch KQ action, malfunctioning and generation is braked and is often opened the accident potential of downslide, so can consider delay protection in auxiliary power circuit.
If this auxiliary device is installed in the machine room of many elevators, air pump partly only needs shared one, strengthens the gas tank volume, can save a lot of investment costs.
Claims (2)
1, elevator bridge case air pressure automatic leveling auxiliary device, it is characterized in that by electrical motor (D), air pump (QB), air tank (QT), air relay (JY), valve motor switch (KQ), piston (HS, eccentric wheel (PL), 48V standby battery and damper circuit constitute, electrical motor (D) links by belt and air pump (QB), air tank links by flexible pipe and piston, piston links by connecting rod and eccentric wheel, eccentric wheel is positioned between the towing machine brake band (SD), air tank (QT) is provided with air relay (JY), be provided with valve motor switch (KQ) between air tank (QT) and the piston (HS), valve motor switch (KQ) links by middle relay (JZ) and 48V standby battery, standby battery and rectifier are in parallel, and damper circuit is by relay (JZ1), (JZ2) insert the traction machine stator winding.
2, device according to claim 1, the damper circuit that it is characterized in that inserting be by two groups of electric capacity parallel connections)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209881 CN2052401U (en) | 1989-08-23 | 1989-08-23 | Air pressure flat floor device for the elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209881 CN2052401U (en) | 1989-08-23 | 1989-08-23 | Air pressure flat floor device for the elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2052401U true CN2052401U (en) | 1990-02-07 |
Family
ID=4866380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89209881 Pending CN2052401U (en) | 1989-08-23 | 1989-08-23 | Air pressure flat floor device for the elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2052401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102066223B (en) * | 2008-06-13 | 2013-10-09 | 三菱电机株式会社 | Elevator controller and elevator apparatus |
| CN110255328A (en) * | 2019-05-20 | 2019-09-20 | 泸州天府液压件有限公司 | Skyscraper external hydraulic goes up and down fire-fighting system |
-
1989
- 1989-08-23 CN CN 89209881 patent/CN2052401U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102066223B (en) * | 2008-06-13 | 2013-10-09 | 三菱电机株式会社 | Elevator controller and elevator apparatus |
| CN110255328A (en) * | 2019-05-20 | 2019-09-20 | 泸州天府液压件有限公司 | Skyscraper external hydraulic goes up and down fire-fighting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |