Double-car elevator capable of quickly adjusting layer distance
Through the combination of energy storage battery driver parts and voltage detection modules, the problem of slow adjustment between the traditional elevators is solved, and the rapid adjustment and stable operation of double-decker elevators are achieved, which improves transportation efficiency and space utilization.
Patent Information
- Application Number
- CN202411221973.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2024-12-10
AI Technical Summary
The inter-layer adjustment device of traditional double-decker car elevators relies on power supply to accompanying cables, resulting in slow adjustment speed, unable to meet the transportation needs during peak hours, and may cause insufficient use of space or waste.
The energy storage battery driver is adopted to charge the battery control unit in leisure time, switch to the power supply state when needed, driving the upper and lower cars for rapid adjustment. The interlayer adjustment mechanism realizes smooth movement through the telescopic connection arm, and the voltage detection module is used in real time. Monitor the battery status and issue maintenance instructions in a timely manner.
The rapid layer spacing adjustment of double-decker elevators is realized, which reduces passenger waiting time, improves transportation efficiency and space utilization, and ensures the stable operation of the elevator system.
Smart Images
Figure CN119100231A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of elevators, and in particular to a double-car elevator capable of quickly adjusting the floor distance. Background Art
[0002] With the acceleration of urbanization, high-rise buildings are increasing day by day. As a vertical transportation tool, elevators play a vital role in modern buildings. Traditional elevators usually adopt a single-layer car design with fixed floor spacing, which cannot be adjusted according to actual needs. This may cause insufficient or wasteful use of space in some scenarios. For example, in high-rise buildings, the passenger flow on different floors may vary significantly, and elevators with fixed floor spacing may not be able to meet the transportation needs during peak hours.
[0003] In order to improve the transportation efficiency and space utilization of elevators, double-decker elevators came into being. Double-decker elevators include an upper car and a lower car, and the upper and lower cars are connected with an inter-layer adjustment device. However, the power supply of the adjustment device is connected to an external power supply through a traveling cable. The traveling cable of the elevator is a component that moves with the elevator. The bending radius of the cable is related to the cable diameter. A cable with a large diameter requires a larger bending radius. However, due to the influence of the well layout, the power of the adjustment device cannot be made very large, so it usually takes a long time to complete the adjustment of the double-decker car, which makes passengers wait too long in the car, reducing the elevator riding experience. Summary of the invention
[0004] In order to improve the inter-floor adjustment efficiency of a double-car elevator, the present application provides a double-car elevator that can quickly adjust the floor distance.
[0005] The present application provides a double-car elevator capable of quickly adjusting the floor distance, which adopts the following technical solution: A double-car elevator with quickly adjustable floor spacing comprises a car frame, an upper car and a lower car, wherein the upper car and the lower car are slidably arranged in the car frame, and an inter-layer adjustment mechanism is connected between the upper car and the lower car; a driving member is arranged on the car frame, and the output end of the driving member is connected to the upper car or the lower car; an elevator drive system is also included, the output end of the battery drive system is connected to the power supply end of the driving member, the elevator drive system comprises an energy storage battery and a battery control unit, the energy storage battery is arranged on the car frame, and the battery control unit is used to control the energy storage battery to be in a charging state or a discharging state; a control cabinet is also included, and an accompanying cable is connected between the control cabinet and the energy storage battery.
[0006] By adopting the above technical solution, during the idle time period, the battery control unit is used to control the energy storage battery to be in a charging state, and the energy storage battery is charged through the accompanying cable; when the inter-layer spacing needs to be adjusted, the battery control unit is used to control the energy storage battery to switch to a power supply state, and the energy storage battery outputs electrical energy to the drive member, so that the drive member can drive the upper car up and down, thereby enabling the inter-layer spacing between the upper car and the lower car to be adjusted through the inter-layer adjustment mechanism. Compared with the traditional flexible cable directly driving the drive member, the inter-layer spacing adjustment speed in the present application is related to the capacity of the energy storage battery and has nothing to do with the wire diameter of the flexible cable, so that the inter-layer spacing adjustment can be completed more quickly.
[0007] Preferably, the inter-layer adjustment mechanism includes an upper platform, a lower platform, a fixed beam and a telescopic connecting arm, the two ends of the fixed beam are fixed on opposite sides of the car frame, the upper platform and the lower platform are respectively arranged on the upper and lower sides of the fixed beam, the upper platform is used to be fixedly connected to the upper car, the lower platform is used to be fixedly connected to the lower car, and the telescopic connecting arm is used to connect the upper platform, the lower platform and the fixed beam.
[0008] By adopting the above technical solution, a fixed beam is set up to provide a stable support foundation for the entire inter-layer adjustment mechanism, thereby improving the stability of the elevator during inter-layer adjustment. Therefore, during the adjustment process, the telescopic movement of the telescopic connecting arm can ensure the smooth movement of the upper platform and the lower platform in the vertical direction, avoiding safety hazards caused by shaking or tilting.
[0009] Preferably, the telescopic connecting arm comprises a plurality of scissor arms, and the end points of the plurality of scissor arms are hinged in pairs; one end of the telescopic connecting arm is rotatably connected to the upper platform, the other end of the telescopic connecting arm is rotatably connected to the lower platform, and the middle end of the telescopic connecting arm is rotatably connected to the fixed beam.
[0010] By adopting the above technical solution, the telescopic movement of the telescopic connecting arm can be simply realized. When the driving member drives the upper car to move up and down, the lower car can move relative to the upper car through the telescopic connecting arm.
[0011] Preferably, the driving member is configured as a servo motor.
[0012] By adopting the above technical solution, the moving distance of the upper car can be controlled more accurately.
[0013] Preferably, the elevator drive system also includes a frequency converter, and the output end of the incoming power supply is electrically connected to the power supply end of the driving component through the battery control unit and the frequency converter in sequence; the battery control unit includes a battery control unit including a switch module, an inverter, a first relay U1, a second relay U2 and a three-phase switch KY1; the switch module is connected to the host signal, the input end of the switch module is electrically connected to the output end of the incoming power supply, the switch module includes a transformer, and the output end of the transformer is electrically connected to the input end of the energy storage battery; the output end of the energy storage battery is electrically connected to the input end of the inverter, the output end of the inverter is electrically connected to the input end of the frequency converter through the three-phase switch KY1, and the output end of the frequency converter is electrically connected to the power supply end of the driving component.
[0014] By adopting the above technical solution, during the idle time period, the host sends a charging signal to the switch module, and the switch module receives the charging signal and controls the three-phase switch KY1 to be disconnected through the first relay U1, so that the output voltage of the incoming power supply can be input to the energy storage battery after being processed by the transformer, so that the energy storage battery is in a charging state. When someone operates the elevator, the host sends a discharge signal to the switch module, and the switch module receives the discharge signal and controls the three-phase switch KY1 to be closed through the first relay U1, so that the energy storage battery is in a discharge state. At this time, the DC voltage output by the energy storage battery can be converted into AC voltage through the inverter to realize the function of the drive component; and by setting the frequency converter, the frequency of the voltage received at the input end of the drive component can be adjusted to improve the stability of the operation of the drive component.
[0015] Preferably, the battery control unit also includes a second relay U2, a three-phase switch KY2 and a control transformer, the three-phase switch KY2 is connected in series between the output end of the incoming power supply and the input end of the inverter, the three-phase switch KY2 is controllably connected to the control end of the second relay U2, and the two ends of the second relay U2 are electrically connected to the two second connection ends of the switch module; the input end of the control transformer is electrically connected to the input end of the inverter, and the output end of the control transformer is electrically connected to the input end of the host.
[0016] By adopting the above technical solution, under normal circumstances, the three-phase switch KY2 is in an open state. When the elevator needs to be driven, the control transformer can collect the AC voltage output by the inverter and convert it into a DC voltage to feed back to the host. At this time, it means that there is enough electric energy in the energy storage battery to drive the drive part to work. However, if the control transformer has no output voltage or the output voltage is low under the condition that the elevator needs to be driven, it means that the power in the energy storage battery is insufficient. At this time, the host sends an emergency signal to the switch module. The switch module receives the emergency signal and controls the three-phase switch KY2 to close through the second relay U2, so that the output voltage of the incoming power supply can be input to the power supply end of the drive part through the frequency converter, without affecting the normal operation of the elevator. Preferably, it also includes a voltage detection module, and the sampling voltage of the energy storage battery is input to the input end of the voltage detection module, and the output end of the voltage detection module is electrically connected to the host.
[0017] By adopting the above technical solution, the health status of the energy storage battery can be detected by setting a voltage detection module. When the voltage detection module detects that the energy storage battery is in an aging state by detecting the sampled voltage, it can output maintenance instructions to the host and other controllers in time through the control cabinet, so that relevant staff can replace the aged energy storage battery in time to ensure that the elevator can achieve rapid adjustment of the inter-layer distance.
[0018] Preferably, the voltage detection module includes an operational amplifier U1 and a reference voltage module, the sampling voltage is input to the non-inverting input terminal of the operational amplifier U1, and the output terminal of the reference voltage module is electrically connected to the inverting input terminal of the operational amplifier.
[0019] By adopting the above technical solution, when the sampling voltage is greater than the output voltage of the reference voltage module, the energy storage battery is in a healthy state; when the sampling voltage is less than the output voltage of the reference voltage module, the energy storage battery is in an aging state.
[0020] Preferably, the reference voltage module includes a reference voltage VREF+, the reference voltage VREF+ is grounded through resistors R3 and R4 in sequence, and the connection point between the resistors R3 and R4 is electrically connected to the inverting input terminal of the operational amplifier U1.
[0021] By adopting the above technical solution and utilizing the voltage dividing effect of resistors R3 and R4, the voltage value input to the inverting input terminal of the operational amplifier U1 is within the rated range, and different comparison voltages can be provided by adjusting the resistance values of resistors R3 and R4.
[0022] Preferably, the voltage detection module further comprises a capacitor C1, one end of the capacitor C1 is electrically connected to the non-inverting input end of the operational amplifier U1, and the other end of the capacitor C1 is grounded.
[0023] By adopting the above technical solution, the capacitor C1 is used to play the role of filtering and stabilizing voltage, so that the stability of the sampling voltage input to the non-phase input terminal of the operational amplifier U1 can be improved.
[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The inter-layer adjustment mechanism is used to connect the upper car and the lower car. The upper car is driven to move by the driving member, and the lower car is driven to move relative to each other by the telescopic connecting arm, so as to realize the rapid adjustment of the inter-layer distance. By setting up energy storage batteries, when the inter-layer distance needs to be adjusted, the driving member can directly obtain electric energy from the energy storage batteries, so as to complete the adjustment of the inter-layer distance between the upper car and the lower car more quickly. 2. By setting up the voltage detection module, the voltage status of the energy storage battery can be monitored in real time, and maintenance instructions can be issued in time when the energy storage battery is aging, ensuring the stable operation of the elevator system. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a structural schematic diagram of the interlayer adjustment mechanism in the embodiment of the present application; Figure 3 It is a principle block diagram of the elevator drive system in the embodiment of the present application of the voltage detection module; Figure 4 is a circuit diagram of the voltage detection module in an embodiment of the present application.
[0026] Figure numerals: 1. upper car; 2. lower car; 3. car frame; 4. inter-layer adjustment mechanism; 41. upper platform; 42. lower platform; 43. fixed beam; 44. telescopic connecting arm; 441. scissor arm; 5. driving part; 6. energy storage battery; 7. accompanying cable; 8. control cabinet; 9. main machine. DETAILED DESCRIPTION
[0027] The following is combined with Figure 1-4 This application is described in further detail.
[0028] Embodiment 1 of the present application discloses a double-car elevator with rapidly adjustable floor spacing.
[0029] Reference Figure 1, a double-car elevator capable of quickly adjusting the floor distance, comprising a car frame 3, an upper car 1 and a lower car 2, wherein the upper car 1 and the lower car 2 are slidably arranged in the car frame 3. An inter-layer adjustment mechanism 4 is connected between the upper car 1 and the lower car 2, and a driving member 5 is arranged on the top of the car frame 3, wherein the output end of the driving member 5 is connected to the upper car 1, and is used to drive the upper car 1 to move vertically up and down. This embodiment also includes an elevator drive system, wherein the elevator drive system includes an energy storage battery 6 and a battery control unit, wherein the energy storage battery 6 is arranged on the top of the car frame 3, and the output end of the energy storage battery 6 is electrically connected to the power supply end of the driving member 5; the battery control unit is used to control the energy storage battery 6 to be in a charging state or a power supply state. A main unit 9 and a control cabinet 8 are also arranged on the top of the building, wherein an accompanying cable 7 is connected between the control cabinet 8 and the energy storage battery 6, and the accompanying cable 7 is used to transmit electric energy and control signals. During the idle time period, the energy storage battery 6 is controlled to be in a charging state, and the energy storage battery 6 is charged through the accompanying cable 7 of the elevator; when the inter-layer spacing needs to be adjusted, the energy storage battery 6 is controlled to switch to the power supply state, and the energy storage battery 6 outputs electric energy to the driving component 5, and the driving component 5 drives the upper car 1 to move up and down, and then drives the lower car 2 to move through the inter-layer adjustment mechanism 4, so as to realize the adjustment of the inter-layer spacing between the upper car 1 and the lower car 2.
[0030] refer to Figure 1 and Figure 2 The inter-layer adjustment mechanism 4 includes an upper platform 41, a lower platform 42, a fixed beam 43 and a telescopic connecting arm 44. The two ends of the fixed beam 43 are respectively fixed on the opposite sides of the car frame 3, and the length direction of the fixed beam 43 is perpendicular to the running direction of the elevator. The upper platform 41 and the lower platform 42 are respectively arranged on the upper and lower sides of the fixed beam 43, the upper platform 41 is fixedly connected to the upper car 1 away from the upper part of the fixed beam 43, and the lower platform 42 is fixedly connected to the lower car 2 away from the lower part of the fixed beam 43. The telescopic connecting arm 44 includes a plurality of scissor arms 441, and the end points of the plurality of scissor arms 441 are hinged in pairs. One end of the telescopic connecting arm 44 is rotatably connected to the center of the upper platform 41, the other end of the telescopic connecting arm 44 is rotatably connected to the center of the lower platform 42, and the middle end of the telescopic connecting arm 44 is rotatably connected to the center of the fixed beam 43. When the driving member 5 drives the upper car 1 to move, the upper car 1 can drive the upper platform 41 to move, and then drive the lower car 2 to move relative to the upper car 1 through the telescopic connecting arm 44, so as to adjust the inter-layer distance between the upper car 1 and the lower car 2.
[0031] Preferably, in this embodiment, the driving member 5 is configured as a servo motor, which can accurately control the moving distance of the upper car 1 through the host 9, thereby being able to more accurately adjust the inter-layer distance between the upper car 1 and the lower car 2.
[0032] Reference Figure 3, the elevator drive system also includes a frequency converter, and the output voltage of the incoming power supply is processed by the battery control unit and the frequency converter in turn and input to the power supply end of the driving member 5, and in this embodiment, the incoming power supply is set as a three-phase AC power supply. The battery control unit includes a switch module, an inverter, a first relay U1, a second relay U2 and a three-phase switch KY1. The switch module is controlled to be electrically connected to the host 9, and the three input ends of the switch module are respectively electrically connected to the three-phase output ends of the incoming power supply. The switch module includes a transformer, and the output end of the transformer is electrically connected to the input end of the energy storage battery 6. The transformer is used to convert AC power into DC power to realize the charging function of the energy storage battery 6. The output end of the energy storage battery 6 is electrically connected to the input end of the inverter, and the output end of the inverter is electrically connected to the input end of the frequency converter through the three-phase switch KY1. The inverter is used to convert DC power into AC power to realize the power supply function of the energy storage battery 6. The three-phase switch KY1 is controlled to be connected to the control end of the first relay U3, and the two ends of the second relay U2 are electrically connected to the two second connection ends of the switch module.
[0033] During the idle time period, the host 9 sends a charging signal to the switch module. The switch module receives the charging signal and controls the three-phase switch KY1 to be disconnected through the first relay U1, so that the output voltage of the incoming power supply can be input to the energy storage battery 6 after being processed by the transformer, so that the energy storage battery 6 is in a charging state. When someone operates the elevator, the host 9 sends a discharge signal to the switch module. The switch module receives the discharge signal and controls the three-phase switch KY1 to be closed through the first relay U1, so that the energy storage battery 6 is in a discharge state. At this time, the DC voltage output by the energy storage battery 6 can be converted into AC voltage through the inverter, and the function of the drive component 5 is realized under the frequency conversion regulation of the inverter.
[0034] Preferably, the battery control unit also includes a second relay U2, a three-phase switch KY2 and a control transformer. The three-phase switch KY2 is connected in series between the output end of the incoming power supply and the input end of the frequency converter. The three-phase switch KY2 is controlled to be connected to the control end of the second relay U2. The two ends of the second relay U2 are electrically connected to the two second connection ends of the switch module, and the three-phase switch KY2 is in an open state under normal circumstances. The input end of the control transformer is electrically connected to the input end of the frequency converter, and the output end of the control transformer is electrically connected to the input end of the host 9. When the elevator needs to be driven, the control transformer can collect the AC voltage output by the inverter and convert it into a DC voltage for feedback input to the host 9. This means that there is enough power in the energy storage battery 6 to drive the drive 5. However, if the control transformer has no output voltage or the output voltage is low under the condition that the elevator needs to be driven, it means that the power in the energy storage battery 6 is insufficient. At this time, the host 9 sends an emergency signal to the switch module. The switch module receives the emergency signal and controls the three-phase switch KY2 to close through the second relay U2, so that the output voltage of the incoming power supply can be input to the power supply end of the drive 5 through the frequency converter, without affecting the normal operation of the elevator. Reference Figure 3 and Figure 4 , the embodiment of the present application also includes a voltage detection module electrically connected to the energy storage battery 6, and the sampled voltage VbatS of the energy storage battery 6 is output to the host 9 through the voltage detection module. The voltage detection module includes an op amp U1 and a reference voltage module, and the output end of the reference voltage module is electrically connected to the inverting amplifier end of the op amp U1. The sampled voltage VbatS is grounded through resistors R1 and R2 in turn, and the connection point between them is electrically connected to the non-inverting input end of the op amp U1. The voltage dividing effect of resistors R1 and R2 is utilized to make the voltage value input to the non-inverting input end of the op amp U1 within the rated range. The reference voltage module includes a reference voltage VREF+ output by a reference power supply, and the reference voltage VREF+ is grounded through resistors R3 and R4 in turn, and the connection point between resistors R3 and R4 is electrically connected to the inverting input end of the op amp U1. By utilizing the voltage-dividing effect of resistors R3 and R4, the voltage value input to the inverting input terminal of the operational amplifier U1 is within the rated range, and different comparison voltages can be provided by adjusting the resistance values of resistors R3 and R4. The output terminal of the operational amplifier U1 outputs the energy storage battery 6 detection signal SIG1 to the host 9 through resistor R5.
[0035] Preferably, the voltage detection module also includes a capacitor C1, one end of which is electrically connected to the non-inverting input terminal of the operational amplifier U1, and the other end of the capacitor C1 is grounded, which plays a role in filtering and stabilizing voltage, thereby improving the stability of the sampling voltage VbatS input to the non-inverting input terminal of the operational amplifier U1.
[0036] When the energy storage battery 6 ages, the energy storage battery 6 cannot provide a sufficiently high voltage to the driving component 5, resulting in the inability to meet the demand for rapid adjustment of the interlayer spacing. When the sampled voltage VbatS is greater than the reference voltage VREF+, the voltage detection module outputs a high-level energy storage battery 6 detection signal SIG1, that is, the energy storage battery 6 is in a healthy state at this time. When the sampled voltage VbatS is greater than the reference voltage VREF+, the voltage detection module outputs a low-level energy storage battery 6 detection signal SIG1, that is, the energy storage battery 6 is in an aging state at this time. When the host 9 receives the low-level energy storage battery 6 detection signal SIG1, the host 9 will issue a maintenance instruction so that relevant personnel can replace the energy storage battery 6 in time to maintain the normal operation of the elevator system.
[0037] The implementation principle of a double-car elevator with fast adjustable floor spacing in the embodiment of the present application is as follows: during the idle time of the elevator, the battery control unit controls the energy storage battery 6 to be in a charging state; when the inter-layer spacing needs to be adjusted, the battery control unit controls the energy storage battery 6 to be in a discharging state, and the drive member 5 can directly obtain electric energy through the energy storage battery 6, so that the upper car 1 can be driven to move more quickly, and then the lower car 2 can be driven to move relative to each other through the inter-layer adjustment mechanism 4. Compared with the prior art method of using accompanying cables as the function of the drive member 5, the present application can complete the adjustment of the inter-layer spacing between the upper car 1 and the lower car 2 more quickly. In addition, by setting a voltage detection module, the voltage state of the energy storage battery 6 can be monitored in real time, and maintenance instructions can be issued in time when the energy storage battery 6 is aged, ensuring the stable operation of the elevator system.
[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A double-car elevator with rapidly adjustable floor spacing, characterized in that: The invention comprises a car frame (3), an upper car (1) and a lower car (2), wherein the upper car (1) and the lower car (2) are slidably arranged in the car frame (3), and an inter-layer adjustment mechanism (4) is connected between the upper car (1) and the lower car (2); a driving member (5) is arranged on the car frame (3), and an output end of the driving member (5) is connected to the upper car (1) or the lower car (2); the invention also comprises an elevator drive system, wherein the output end of the battery drive system is connected to the power supply end of the driving member, and the elevator drive system comprises an energy storage battery (6) and a battery control unit, wherein the energy storage battery (6) is arranged on the car frame (3), and the battery control unit is used to control the energy storage battery (6) to be in a charging state or a discharging state; and the invention also comprises a control cabinet (8), wherein an accompanying cable (7) is connected between the control cabinet (8) and the energy storage battery (6).
2. A double-car elevator with rapidly adjustable floor spacing according to claim 1, characterized in that: The inter-layer adjustment mechanism (4) comprises an upper platform (41), a lower platform (42), a fixed beam (43) and a telescopic connecting arm (44); the two ends of the fixed beam (43) are fixed on opposite sides of the car frame (3); the upper platform (41) and the lower platform (42) are respectively arranged on upper and lower sides of the fixed beam (43); the upper platform (41) is used for fixed connection with the upper car (1); the lower platform (42) is used for fixed connection with the lower car (2); and the telescopic connecting arm (44) is used for connecting the upper platform (41), the lower platform (42) and the fixed beam (43).
3. A double-car elevator with rapidly adjustable floor spacing according to claim 2, characterized in that: The telescopic connecting arm (44) comprises a plurality of scissor arms (441), and the end points of the plurality of scissor arms (441) are hinged in pairs; one end of the telescopic connecting arm (44) is rotatably connected to the upper platform (41), the other end of the telescopic connecting arm (44) is rotatably connected to the lower platform (42), and the middle end of the telescopic connecting arm (44) is rotatably connected to the fixed beam (43).
4. A double-car elevator with rapidly adjustable floor spacing according to claim 1, characterized in that: The driving member (5) is configured as a servo motor.
5. A double-car elevator with rapidly adjustable floor spacing according to claim 1, characterized in that: The elevator drive system also includes a frequency converter, and the output end of the incoming power supply is electrically connected to the power supply end of the driving component through the battery control unit and the frequency converter in sequence; the battery control unit includes a battery control unit including a switch module, an inverter, a first relay U1, a second relay U2 and a three-phase switch KY1; the switch module is connected to the host signal, the input end of the switch module is electrically connected to the output end of the incoming power supply, the switch module includes a transformer, and the output end of the transformer is electrically connected to the input end of the energy storage battery; the output end of the energy storage battery is electrically connected to the input end of the inverter, the output end of the inverter is electrically connected to the input end of the frequency converter through the three-phase switch KY1, and the output end of the frequency converter is electrically connected to the power supply end of the driving component.
6. A double-car elevator with rapidly adjustable floor spacing according to claim 5, characterized in that: The battery control unit also includes a second relay U2, a three-phase switch KY2 and a control transformer. The three-phase switch KY2 is connected in series between the output end of the incoming power supply and the input end of the inverter. The three-phase switch KY2 is controllably connected to the control end of the second relay U2. The two ends of the second relay U2 are electrically connected to the two second connection ends of the switch module. The input end of the control transformer is electrically connected to the input end of the inverter, and the output end of the control transformer is electrically connected to the input end of the host.
7. A double-car elevator with rapidly adjustable floor spacing according to claim 1, characterized in that: It also includes a voltage detection module, the sampled voltage of the energy storage battery (6) is input to the input end of the voltage detection module, and the output end of the voltage detection module is electrically connected to the input end of the host (9).
8. A double-car elevator with rapidly adjustable floor spacing according to claim 7, characterized in that: The voltage detection module includes an operational amplifier U1 and a reference voltage module. The sampling voltage is input to the non-inverting input terminal of the operational amplifier U1, and the output terminal of the reference voltage module is electrically connected to the inverting input terminal of the operational amplifier.
9. A double-car elevator with rapidly adjustable floor spacing according to claim 8, characterized in that: The reference voltage module includes a reference voltage VREF+, and the reference voltage VREF+ is grounded through resistors R3 and R4 twice. The connection point between the resistors R3 and R4 is electrically connected to the inverting input terminal of the operational amplifier U1.
10. A double-car elevator with rapidly adjustable floor distance according to claim 8, characterized in that: The voltage detection module further includes a capacitor C1 , one end of the capacitor C1 is electrically connected to the non-inverting input end of the operational amplifier U1 , and the other end of the capacitor C1 is grounded.