An operator initiated elevator system with assisted rescue function

Abstract

The application discloses an elevator system with an auxiliary rescue function and an operator starting mode, which comprises a mounting frame, a rotating adjusting arm, an elastic positioning mechanism and a position detection execution circuit. The mounting frame is used for being mounted on the top or bottom of an elevator shaft. One end of the rotating adjusting arm is hinged to the mounting frame. The rotation of the rotating adjusting arm is in the Z direction around the center line, and the Z direction is parallel to the horizontal plane. The elastic positioning mechanism comprises a positioning support arm and an elastic member. The positioning support arm is mounted on the mounting frame and can move in the Z direction relative to the mounting frame. The elastic member is connected between the positioning support arm and the mounting frame and is used for keeping the positioning support arm in the position of supporting the rotating adjusting arm. The position detection execution circuit is mounted on the mounting frame. The elevator system with the auxiliary rescue function and the operator starting mode solves the problem that the layer door switch is forgotten to be short-circuited in the prior art.

Description

Technical Field

[0001] This invention relates to the field of elevators, and more specifically to an operator-activated elevator system with auxiliary rescue functions. Background Technology

[0002] like Figure 1 As shown, the elevator system includes a safety switch circuit, which includes: landing door switch SW1, landing door switch SW2, landing door switch SW3... landing door switch SWN-1, landing door switch SWN, and resistor R1. A 110V voltage is connected to the first terminal of resistor R1 through landing door switches SW1, SW2, SW3... landing door switch SWN-1, and landing door switch SWN. The second terminal of resistor R1 is grounded. Landing door switches SW1, SW2, SW3... landing door switch SWN-1, and landing door switch SWN are all connected in series. By detecting the voltage at the first terminal of resistor R1, it can be determined whether all landing doors are closed. Each floor has a floor number, so there are many floors and many landing door switches. The landing door switches are linked to the landing doors on each floor. That is, when a landing door is closed, the corresponding landing door switch closes, and when a landing door is open, the corresponding landing door switch closes. This allows for monitoring of the opening and closing status of the landing doors. When a landing door is open, the elevator control box ensures that neither the landing door nor the car door closes, facilitating passenger access and preventing elevator accidents that could injure people.

[0003] When a landing door switch malfunctions, it may remain open, but the elevator car is stopped in the elevator shaft. While stopped, the elevator car may not be aligned with the correct floor. Therefore, an emergency rescue of the passengers is needed. This requires short-circuiting the faulty landing door switch. Maintenance personnel typically short-circuit the landing door switch to allow the elevator system to operate normally, enabling the car to reach the correct floor and immediately release the passengers for the rescue operation. Figure 1 The middle door switch SW2 has been short-circuited.

[0004] While the above steps can rescue passengers by short-circuiting the damaged landing door switch, this method has the following drawbacks: there is a possibility that the landing door switch has been forgotten to be short-circuited, which may cause the landing door switch to fail to properly sense the opening and closing of the landing door when it is running normally afterward, potentially resulting in injury to people. Summary of the Invention

[0005] The present invention provides an operator-activated elevator system with auxiliary rescue function, which solves the problem in the prior art where people may forget that they have short-circuited the landing door switch.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention discloses an operator-activated elevator system with auxiliary rescue function, comprising: a mounting frame for installation at the top or bottom of an elevator shaft; a rotating adjusting arm, one end of which is hinged to the mounting frame, the rotating adjusting arm rotating around a center line in the Z direction, the Z direction being parallel to the horizontal plane; an elastic positioning mechanism comprising: a positioning support arm and an elastic element, the positioning support arm being mounted on the mounting frame and movable relative to the mounting frame in the Z direction, the elastic element connecting the positioning support arm and the mounting frame, the elastic element being used to maintain the positioning support arm in the position supporting the rotating adjusting arm; a position detection execution circuit mounted on the mounting frame, the position detection execution circuit being used to detect whether the positioning support arm is in the position supported by the positioning support arm; and a short-circuit execution circuit comprising at least two relays, one relay corresponding to the landing door switch in each safety switch circuit, wherein a single relay is provided in each relay. The stationary terminal of the double-throw switch is connected to one end of the floor door switch in the safety switch circuit. The second moving terminal of the single-throw switch in the relay is connected to the other end of the floor door switch in the safety switch circuit. The first moving terminal of the single-throw switch in the relay is unused. When the relay control terminal is not connected to a high level, the stationary terminal of the single-throw switch in the relay is connected to the first moving terminal. A release drive mechanism is installed at the positioning support arm and is used to drive the positioning support arm to release the rotating adjustment arm. A first drive switch circuit is used to energize the release drive mechanism. A second drive switch circuit is used to energize the relay control terminal. A control circuit includes a control chip, the first output terminal of which is connected to the control terminal of the first drive switch circuit, the second output terminal of which is connected to the control terminal of the second drive switch circuit, and the output terminal of the position detection execution circuit is connected to the input terminal of the control chip.

[0008] Preferably, the operator-activated elevator system with auxiliary rescue function operates according to the following steps:

[0009] S1. Initialize the initial position, with the middle of the rotating adjustment arm located below the positioning support arm, and the positioning support arm not in contact with the rotating adjustment arm;

[0010] S2. When the elevator car stops in the middle of the elevator shaft and is not at the passenger pick-up or drop-off position, the operator determines whether there is a problem that the landing door is closed and the resistor R1 in the safety switch circuit is de-energized. If yes, proceed to step S3; otherwise, do not perform any operation.

[0011] S3. The operator manually rotates the rotating adjustment arm so that the rotating adjustment arm rotates to the position detection execution circuit, and the elastic element supports the rotating adjustment arm.

[0012] S4. The control chip detects that the rotary adjustment arm is in the position supported by the rotary adjustment arm through the position detection execution circuit.

[0013] S5. The second output terminal of the control chip sends a high level to the second drive switch circuit, and all relays short-circuit the middle layer door switch in the safety circuit.

[0014] S6. The elevator control box detects that all landing door switches are closed and controls the car to move up or down to the passenger pick-up / drop-off position.

[0015] S7. The control chip receives a reset command from the operator.

[0016] S8. The first output terminal of the control chip sends a high level to the first drive switch circuit to release the power supply of the drive mechanism.

[0017] S9. Release the drive mechanism to drive the positioning support arm to release the rotary adjustment arm. The rotary adjustment arm moves away from the position detection execution circuit under its own gravity.

[0018] S10, The control chip detects the position where the rotating adjustment arm is away from the position supported by the rotating adjustment arm through the position detection execution circuit;

[0019] S11, the second output terminal of the control chip outputs a low level, the control terminals of all relays are de-energized, and the moving terminals of all relays are closed with the first stationary terminal.

[0020] Preferably, the control chip is connected to the radio frequency transceiver chip, and the radio frequency transceiver chip is connected to an external mobile terminal.

[0021] Preferably, step S7 includes the following steps:

[0022] S71, Control chip timing starts, initialize t=0;

[0023] S72: The control chip waits for the operator's reset command and waits for T1, where T1 is the set value.

[0024] S73. The control chip determines whether it has received a reset command from the operator of the external mobile terminal. If not, the timing continues; if so, proceed to step S76.

[0025] S74, The control chip determines whether time t is greater than the set value T. max1 If yes, proceed to step S75; otherwise, proceed to step S76.

[0026] S75, the control chip sends a text message notification;

[0027] S76, The control chip determines whether time t is greater than the set value T. max2 T1 < T max1 <T max2 If yes, proceed to step S75; otherwise, return to step S72.

[0028] S77. The control chip automatically determines that it has received the operator's reset command, and the command reception ends.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] This application, firstly, breaks away from the traditional manual short-circuiting method. It allows for the operation of a rotating adjusting arm when a landing door is open, causing the elevator car to stop at a non-disembarking position. This enables the position detection circuit to detect the movement of the rotating adjusting arm, thereby controlling all relays to short-circuit all landing door switches. This avoids the cumbersome manual short-circuiting operation; only the rotating adjusting arm, which functions like a switch, needs to be adjusted. Secondly, to allow for free adjustment of the rotating adjusting arm in the absence of power, and to ensure proper positioning after adjustment, the rotating adjusting arm is supported by a positioning support arm of an elastic positioning mechanism. The positioning support arm is mounted to a mounting bracket via an elastic element. This allows for manual adjustment of the rotating adjusting arm even without a driving mechanism, and the elastic element, after manual adjustment, supports and positions the rotating adjusting arm, thus achieving manual adjustment and positioning in the absence of power. Finally, since it is highly likely that the rotating adjusting arm will be forgotten after adjustment, it is crucial to address the issue of forgetting to return it to its initial position. The control chip controls the power-off of all relay control terminals. Therefore, based on the flexible positioning mechanism, a release drive mechanism is set up. The release drive mechanism is controlled by the control chip through the second drive switch circuit. Thus, after the rescue work is completed, the operator can issue a command to automatically drive the positioning support arm to a position where it can no longer support the rotating adjustment arm. Under its own weight, the rotating adjustment arm rotates to be suspended below the positioning support arm. Furthermore, in order to remind the operator to issue a command, the control chip is connected to an RF transceiver chip, which is connected to an external mobile phone terminal to send a prompt. At the same time, if no reset command is received from the operator within a specified period, it will automatically determine that a reset command has been received, thereby automatically controlling the release drive mechanism to drive the positioning support arm to release the rotating adjustment arm. This avoids the short circuit of the landing door switch during subsequent normal elevator operation, and fully ensures that the landing door switch itself can function normally.

[0031] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0032] Figure 1 This is a circuit diagram of the safety switch circuit in an elevator system.

[0033] Figure 2A schematic diagram of an elevator system with auxiliary rescue functions that can be started by operators.

[0034] Figure 3 for Figure 2 A schematic diagram of the structure of the rotating adjustment arm after disassembly.

[0035] Figure 4 for Figure 2 A schematic diagram of the structure after the outer casing of the circuit board is disassembled.

[0036] Figure 5 This is a circuit diagram of the control circuit in an elevator system with operator-activated auxiliary rescue functions.

[0037] Figure 6 This is a circuit diagram for a safety circuit and relays.

[0038] Figure 7 This is a circuit diagram of the position detection execution circuit.

[0039] Reference numerals: Mounting bracket 1, Circuit housing 11, Rotary adjustment arm 2, Arc surface 20, Elastic positioning mechanism 3, Positioning support arm 31, Elastic element 32, Position detection execution circuit 4, Permanent magnet 51, Electromagnet M. Detailed Implementation

[0040] To make the technical means, creative features, objectives and effects of this invention clearer and easier to understand, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0041] like Figures 2 to 7As shown, this invention discloses an operator-activated elevator system with auxiliary rescue function, comprising: a mounting frame 1, which is used to install at the top or bottom of the elevator shaft; a rotating adjusting arm 2, one end of which is hinged to the mounting frame 1, the rotation of the rotating adjusting arm 2 is located in the Z direction around the center line, and the Z direction is parallel to the horizontal plane; an elastic positioning mechanism 3, comprising: a positioning support arm 31 and an elastic element 32, the positioning support arm 31 is mounted on the mounting frame 1, the positioning support arm 31 can move relative to the mounting frame 1 in the Z direction, and the elastic element 32 is connected between the positioning support arm 31 and the mounting frame 1, the elastic element 32 is used to keep the positioning support arm 31 in the position supporting the rotating adjusting arm 2; a position detection execution circuit 4, which is mounted on the mounting frame 1, the position detection execution circuit 4 is used to detect whether the positioning support arm 31 is in the position supported by the positioning support arm 31; and a short-circuit execution circuit, which includes at least two relays (RL1, RL2, RL3, ... RLN-1, ...). (RLN) For each safety switch circuit, a relay is provided for the floor door switch. The stationary terminal of the single-pole double-throw switch in the relay is connected to one end of the floor door switch in the safety switch circuit, and the second moving terminal of the single-pole double-throw switch in the relay is connected to the other end of the floor door switch in the safety switch circuit. The first moving terminal of the single-pole double-throw switch in the relay is unused. When the relay control terminal is not connected to a high level, the stationary terminal of the single-pole double-throw switch in the relay is connected to the first moving terminal. A release drive mechanism is installed at the positioning support arm 31. The release drive mechanism is used to drive the positioning support arm 31 to release the rotating adjustment arm 2. A first drive switch circuit is used to energize the release drive mechanism through the first drive switch circuit. A second drive switch circuit is used to energize the relay control terminal through the second drive switch circuit. A control circuit includes: a control chip, the first output terminal of the control chip is connected to the control terminal of the first drive switch circuit, the second output terminal of the control chip is connected to the control terminal of the second drive switch circuit, and the output terminal of the position detection execution circuit 4 is connected to the input terminal of the control chip.

[0042] The operator-activated elevator system with auxiliary rescue function operates according to the following steps:

[0043] S1. Initialize the initial position. The middle part of the rotating adjustment arm 2 is located below the positioning support arm 31, and the positioning support arm 31 is not in contact with the rotating adjustment arm 2.

[0044] S2. When the elevator car stops in the middle of the elevator shaft and is not at the passenger pick-up or drop-off position, the operator determines whether there is a problem that the landing door is closed and the resistor R1 in the safety switch circuit is de-energized. If yes, proceed to step S3; otherwise, do not perform any operation.

[0045] S3. The operator manually rotates the rotary adjustment arm 2 so that the rotary adjustment arm 2 rotates to the position detection execution circuit 4, and the elastic element 32 elastically supports the rotary adjustment arm 2.

[0046] S4. The control chip detects through the position detection execution circuit 4 that the rotary adjustment arm 2 is in the position supported by the rotary adjustment arm 2.

[0047] S5. The second output terminal of the control chip sends a high level to the second drive switch circuit, and all relays short-circuit the middle layer door switch in the safety circuit.

[0048] S6. The elevator control box detects that all landing door switches are closed and controls the car to move up or down to the passenger pick-up / drop-off position.

[0049] S7. The control chip receives a reset command from the operator.

[0050] S8. The first output terminal of the control chip sends a high level to the first drive switch circuit to release the power supply of the drive mechanism.

[0051] S9. Release the drive mechanism to drive the positioning support arm 31 to release the rotary adjustment arm 2. The rotary adjustment arm 2 moves away from the position detection execution circuit 4 under its own gravity.

[0052] S10, The control chip detects the position of the rotating adjustment arm 2 away from the position supported by the rotating adjustment arm 2 through the position detection execution circuit 4;

[0053] S11, the second output terminal of the control chip outputs a low level, the control terminals of all relays are de-energized, and the moving terminals of all relays are closed with the first stationary terminal.

[0054] The control chip is connected to the radio frequency transceiver chip, which in turn is connected to an external mobile terminal.

[0055] Step S7 includes the following steps:

[0056] S71, Control chip timing starts, initialize t=0;

[0057] S72: The control chip waits for the operator's reset command and waits for T1, where T1 is the set value.

[0058] S73. The control chip determines whether it has received a reset command from the operator of the external mobile terminal. If not, the timing continues; if so, proceed to step S76.

[0059] S74. The control chip determines whether time t is greater than the set value Tmax1; if yes, proceed to step S75; if no, proceed to step S76.

[0060] S75, the control chip sends a text message notification;

[0061] S76. The control chip determines whether time t is greater than the set value Tmax2, where T1 < Tmax1 < Tmax2; if yes, proceed to step S75; otherwise, return to execute S72.

[0062] S77. The control chip automatically determines that it has received the operator's reset command, and the command reception ends.

[0063] The relay is model G2R-1E-DC. One end of the relay coil is grounded, and the other end of the relay coil is the relay control terminal ADC.

[0064] The control chip U2 is an ATMEGA328PB-AN model, and the RF transceiver chip U1 is a KSZ8895MQXIA model chip. The PU0-(PTCXY / OC3A / RXD0) pin of the control chip U2 is connected to the RXP1 pin of the RF transceiver chip U1, and the PU1-(PTCXY / OC4A / TXD0) pin of the control chip U2 is connected to the TXP1 pin of the RF transceiver chip U1, thus realizing the networking.

[0065] The second driving switch circuit includes a switching transistor Q1, resistors R2 and R3. The base of switching transistor Q1 is connected to the second output terminal PC2-(ADC2 / PTCY) of control chip U2. The emitter of switching transistor Q1 is grounded through resistor R3, and the collector of switching transistor Q1 is connected to the VCC power supply (5V) through resistor R2. The connection between the emitter of switching transistor Q1 and resistor R3 is used to connect to the relay control terminal ADC. This allows the relay control terminal ADC to be connected to a high or low level under the control of control chip U2.

[0066] The first drive switch circuit includes: MOSFET Q2, resistor R7, resistor R8, and diode D1. The gate of MOSFET Q2 is connected to one end of resistor R7, and the other end of resistor R7 is the input terminal of CR1. The input terminal of CR1 is connected to the first output terminal PC4-(ADC4 / PTCY / SDA0) of control chip U2. The source of MOSFET Q2 is grounded through resistor R8, and the drain of MOSFET Q2 is connected to the cathode of diode D1. The anode of diode D1 is connected to the VDD power supply 12V.

[0067] The release drive mechanism includes a permanent magnet 51 and an electromagnet M. The permanent magnet 51 is mounted on the positioning support arm 31, and the electromagnet M is mounted opposite to the permanent magnet 51. One end of the electromagnet M is connected to the anode of the diode D1, and the other end of the electromagnet M is connected to the cathode of the diode D1. When the electromagnet M is energized, the permanent magnet 51 and the electromagnet M move closer to each other.

[0068] The position detection execution circuit 4 includes a self-reset switch S1, resistors R4 and R5. One end of the self-reset switch S1 is connected to the input terminal PC3-(ADC3 / PTCY) of the control chip U2. The self-reset switch S1 is used to close when the rotary adjustment arm 2, supported by the rotary adjustment arm 2, is pressed. The other end of the self-reset switch S1 is connected to the junction of one end of resistor R5 and resistor R4. The other end of resistor R5 is grounded, and resistor R4 is connected to the VCC power supply (5V). This ensures that when the rotary adjustment arm 2 presses against the self-reset switch S1, the self-reset switch S1 closes, inputting a high level to the control chip U2. When the rotary adjustment arm 2 moves away from the self-reset switch S1, the self-reset switch S1 opens, inputting no signal to the control chip U2, thus enabling the control chip U2 to detect the position of the rotary adjustment arm 2.

[0069] The rotating adjustment arm 2 is provided with an arc surface 20, which is used to contact the pressing part of the self-reset switch S1 or the positioning support arm 31. The pressing part of the reset switch S1 is a hemispherical structure, which makes the pressing part of the reset switch S1 slide smoothly relative to the arc surface 20. The positioning support arm 31 is used to support the end of the rotating adjustment arm 2 and is a locking tongue structure. The positioning support arm 31 forms an inclined pressing surface, which makes it convenient for the arc surface 20 to press the support arm into the bracket by pressing the inclined pressing surface.

[0070] The short-circuit execution circuit is installed inside the elevator shaft. The control circuit, position detection execution circuit 4, RF transceiver chip, first drive switch circuit, and second drive switch circuit are all installed inside the circuit housing 11, which is mounted on the mounting bracket 1.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An operator-activated elevator system with auxiliary rescue function, characterized in that, include: Mounting bracket, which is used to install at the top or bottom of the elevator shaft; The rotating adjustment arm has one end hinged to the mounting bracket. The rotation of the rotating adjustment arm is located in the Z direction around the center line, and the Z direction is parallel to the horizontal plane. The elastic positioning mechanism includes a positioning support arm and an elastic element. The positioning support arm is mounted on a mounting frame and can move relative to the mounting frame in the Z direction. An elastic element is connected between the positioning support arm and the mounting frame. The elastic element is used to keep the positioning support arm in the position supporting the rotary adjustment arm. The position detection execution circuit is mounted on the mounting bracket. The position detection execution circuit is used to detect whether the positioning support arm is located in the position supported by the positioning support arm. The short-circuit execution circuit includes at least two relays. Each safety switch circuit has a corresponding door switch with a relay. The stationary terminal of the single-pole double-throw switch in the relay is connected to one end of the door switch in the safety switch circuit, and the second moving terminal of the single-pole double-throw switch in the relay is connected to the other end of the door switch in the safety switch circuit. The first moving terminal of the single-pole double-throw switch in the relay is unused. When the relay control terminal is not connected to a high level, the stationary terminal of the single-pole double-throw switch in the relay is connected to the first moving terminal. A release drive mechanism is installed at the positioning support arm. The release drive mechanism is used to drive the positioning support arm to release the rotating adjustment arm. The first drive switch circuit energizes the release drive mechanism; The second drive switch circuit is used to power the relay control terminal. The control circuit includes: a control chip, a first output terminal of the control chip connected to the control terminal of a first drive switch circuit, a second output terminal of the control chip connected to the control terminal of a second drive switch circuit, and an output terminal of a position detection execution circuit connected to the input terminal of the control chip.

2. The operator-activated elevator system with auxiliary rescue function according to claim 1, characterized in that, The operator-activated elevator system with auxiliary rescue function operates according to the following steps: S1. Initialize the initial position, with the middle of the rotating adjustment arm located below the positioning support arm, and the positioning support arm not in contact with the rotating adjustment arm; S2. When the elevator car stops in the middle of the elevator shaft and is not at the passenger pick-up or drop-off position, the operator determines whether there is a problem that the landing door is closed and the resistor R1 in the safety switch circuit is de-energized. If yes, proceed to step S3; otherwise, do not perform any operation. S3. The operator manually rotates the rotating adjustment arm so that the rotating adjustment arm rotates to the position detection execution circuit, and the elastic element supports the rotating adjustment arm. S4. The control chip detects that the rotary adjustment arm is in the position supported by the rotary adjustment arm through the position detection execution circuit. S5. The second output terminal of the control chip sends a high level to the second drive switch circuit, and all relays short-circuit the middle layer door switch in the safety circuit. S6. The elevator control box detects that all landing door switches are closed and controls the car to move up or down to the passenger pick-up / drop-off position. S7. The control chip receives a reset command from the operator. S8. The first output terminal of the control chip sends a high level to the first drive switch circuit to release the power supply of the drive mechanism. S9. Release the drive mechanism to drive the positioning support arm to release the rotary adjustment arm. The rotary adjustment arm moves away from the position detection execution circuit under its own gravity. S10, The control chip detects the position where the rotating adjustment arm is away from the position supported by the rotating adjustment arm through the position detection execution circuit; S11, the second output terminal of the control chip outputs a low level, the control terminals of all relays are de-energized, and the moving terminals of all relays are closed with the first stationary terminal.

3. The operator-activated elevator system with auxiliary rescue function according to claim 2, characterized in that, The control chip is connected to the radio frequency transceiver chip, which in turn is connected to an external mobile terminal.

4. The operator-activated elevator system with auxiliary rescue function according to claim 3, characterized in that, Step S7 includes the following steps: S71, Control chip timing starts, initialize t=0; S72: The control chip waits for the operator's reset command and waits for T1, where T1 is the set value. S73. The control chip determines whether it has received a reset command from the operator of the external mobile terminal. If not, the timing continues; if so, proceed to step S76. S74, The control chip determines whether time t is greater than the set value T. max1 If yes, proceed to step S75; otherwise, proceed to step S76. S75, the control chip sends a text message notification; S76, The control chip determines whether time t is greater than the set value T. max2 T1 < T max1 <T max2 If yes, proceed to step S75; otherwise, return to step S72. S77. The control chip automatically determines that it has received the operator's reset command, and the command reception ends.

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