Circuit for entrance and exit control device of outdoor escalator

Abstract

The utility model relates to a circuit for an entrance and exit control device of an outdoor escalator, which comprises an intermediate relay, a time relay, a timing circulator, a raindrop sensor, a distance measuring sensor and a position switch, the time relay comprises a time relay coil and a time relay normally open contact, and the intermediate relay normally open contact, the time relay normally open contact and the position switch are sequentially connected to form a control sub-circuit; the intermediate relay coil, the time relay coil, the timing circulator, the raindrop sensor and the distance measuring sensor are sequentially connected to form an output sub-circuit, and the normally open contact of the intermediate relay and the position switch are sequentially connected to form a synchronous sub-circuit. By arranging the sensor, the cycle timer, the relay and the position switch, the escalator entrance and exit control device is controlled, and passing of the escalator entrance and exit is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of outdoor escalator entrance and exit control devices, in particular to a circuit for an outdoor escalator entrance and exit control device. Background Technique

[0002] Most outdoor escalators do not have devices to open and close the entrances and exits. Only a very small number of outdoor escalator entrances and exits are equipped with manual swing doors, which need to be opened or closed and locked by management personnel. The environment where outdoor escalators are located is relatively harsh. For example, rain will cause the steps to be slippery and rainwater, mud and sand will penetrate into the equipment, aggravating equipment wear. Their equipment wears and ages more seriously, has a high failure rate, and is often in a stopped state; the step drop is relatively large, which is likely to cause people to trip, fall, and roll. GB16899-2011 "Safety Rules for the Construction and Installation of Escalators and Moving Walkways" mentions that even in a non-operating state, it cannot be used as a fixed staircase; for some equipment (such as escalators on overpasses), the management personnel are far away, the number of users is extremely small late at night, and the equipment cannot be shut down in time in case of an accident. To sum up, there should be a device that can automatically shut down the equipment in harsh environments and low-usage periods, start the equipment in good environments and peak-usage periods, and prevent people from using the equipment when the equipment is in a non-operating state. This article introduces a circuit for an outdoor escalator entrance and exit control device, which can automatically close the entrance and exit and stop the operation of the outdoor escalator within a non-timed period, automatically open the entrance and exit and start the outdoor escalator within a timed period and when it does not rain, and automatically close the entrance and exit and stop the operation of the outdoor escalator when it rains within a timed period.

[0003] The utility model with the publication number of CN2625365Y provides a general self-starting device for escalators, which is composed of a pyroelectric infrared sensor, a special integrated circuit for thermal infrared detection, a differentiating circuit, a positive sharp pulse driving circuit and a negative sharp pulse driving circuit. The pyroelectric infrared sensor is installed vertically above the entrance of the escalator. After it senses the passenger signal, it outputs a square wave signal after being processed by the special integrated circuit, and then is transformed into positive and negative sharp pulses by the differentiating circuit. These two pulses with different polarities are respectively amplified and then drive the start relay to control the start circuit and stop circuit in the original escalator, so that the escalator starts or stops. This patent controls the start of the escalator by setting sensors on the escalator, which has problems of inconvenient configuration and safety. When the escalator is located outdoors, it lacks the ability to respond to environmental changes; placing a control device at the entrance and exit of the escalator can facilitate the configuration with outdoor escalators.

[0004] Therefore, it is an urgent problem to be solved at present to provide a circuit for an outdoor escalator entrance and exit control device. Content of the Utility Model

[0005] The purpose of the present utility model is to overcome the defects of the above-mentioned prior art and provide a circuit for an outdoor escalator entrance and exit control device.

[0006] The purpose of the present utility model can be achieved by the following technical solutions:

[0007] According to one aspect of the present utility model, there is provided a circuit for an outdoor escalator entrance and exit control device. The circuit includes a intermediate relay, a time relay, a timing circulator, a rain drop sensor, a distance sensor, and a position switch. The intermediate relay includes an intermediate relay coil and an intermediate relay normally open contact. The time relay includes a time relay coil and a time relay normally open contact. The intermediate relay normally open contact, the time relay normally open contact, and the position switch are connected in sequence to form a control sub-circuit. The intermediate relay coil, the time relay coil, the timing circulator, the rain drop sensor, and the distance sensor are connected in sequence to form an output sub-circuit. The intermediate relay normally open contact and the position switch are connected in sequence to form a synchronization sub-circuit.

[0008] As a preferred technical solution, the position switch includes an entrance door open in place normally closed position switch, an entrance door closed in place normally closed position switch, an exit door open in place normally closed position switch, and an exit door closed in place normally closed position switch. The control sub-circuit includes the entrance door open in place normally closed position switch, the entrance door closed in place normally closed position switch, the exit door open in place normally closed position switch, and the exit door closed in place normally closed position switch connected in parallel. The synchronization sub-circuit includes the exit door closed in place normally closed position switch and the intermediate relay normally open contact connected in series.

[0009] As a preferred technical solution, the intermediate relay normally open contact and the entrance door open in place normally closed position switch in the control sub-circuit are connected in series. The intermediate relay normally open contact and the exit door open in place normally closed position switch in the control sub-circuit are connected in series.

[0010] As a preferred technical solution, the intermediate relay normally open contact and the exit door closed in place normally closed position switch in the synchronization sub-circuit are connected in series.

[0011] As a preferred technical solution, the time relay includes a first time relay and a second time relay. The first time relay includes a first time relay coil and a first time relay normally open contact. The second time relay includes a second time relay coil and a second time relay normally open contact. The first time relay coil and the second time relay coil are connected in series. The first time relay normally open contact and the entrance door closed in place normally closed position switch are connected in series. The second time relay normally open contact and the exit door closed in place normally closed position switch are connected in series.

[0012] As a preferred technical solution, the timing circulator includes a DO1 terminal and a DO2 terminal, the rain drop sensor includes a DO3 terminal and a DO4 terminal, the distance measuring sensor includes a DO5 terminal, the intermediate relay coil is respectively connected to the DO1 terminal and the DO3 terminal, and the first time relay coil is respectively connected to the DO1 terminal, the DO2 terminal, the DO4 terminal and the DO5 terminal.

[0013] As a preferred technical solution, the circuit further includes a contactor, a three-phase power supply and a three-phase motor. The contactor includes a contactor coil and a normally open contact of the contactor. The contactor coil is connected in series with the position switch, and the three-phase power supply and the three-phase motor are connected through the normally open contact of the contactor.

[0014] As a preferred technical solution, the contactor includes a first contactor and a second contactor. The first contactor includes a first normally open contact of the contactor, a first contactor coil and a first normally closed contact of the contactor. The second contactor includes a second normally open contact of the contactor, a second contactor coil and a second normally closed contact of the contactor. The first normally open contact of the contactor and the normally open contact of the intermediate relay are connected in parallel. The second normally closed contact of the contactor, the first contactor coil and the normally open contact of the intermediate relay are connected in series. The second normally open contact of the contactor and the normally open contact of the first time relay are connected in parallel. The first normally closed contact of the contactor, the second contactor coil and the normally open contact of the first time relay are connected in series. The three-phase power supply and the three-phase motor are connected through the first normally open contact of the contactor or the second normally open contact of the contactor.

[0015] As a preferred technical solution, the contactor further includes a third contactor and a fourth contactor. The third contactor includes a third normally open contact of the contactor, a third contactor coil and a third normally closed contact of the contactor. The fourth contactor includes a fourth normally open contact of the contactor, a first contactor coil and a fourth normally closed contact of the contactor. The third normally open contact of the contactor and the normally open contact of the intermediate relay are connected in parallel. The fourth normally closed contact of the contactor, the third contactor coil and the normally open contact of the intermediate relay are connected in series. The fourth normally open contact of the contactor and the normally open contact of the second time relay are connected in parallel. The third normally closed contact of the contactor, the fourth contactor coil and the normally open contact of the second time relay are connected in series. The three-phase power supply and the three-phase motor are connected through the third normally open contact of the contactor or the fourth normally open contact of the contactor.

[0016] As a preferred technical solution, the contactor further includes a sixth contactor. The sixth contactor includes a sixth normally open contact of the contactor and a sixth contactor coil. The sixth normally open contact of the contactor is connected in parallel with the intermediate relay, and the sixth contactor coil is connected in series with the intermediate relay. The three-phase power supply and the three-phase motor are connected through the sixth normally open contact of the contactor.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] 1. The utility model controls the access control device at the entrance and exit of the escalator by setting a rain drop sensor, a cycle timer, a distance sensor, an intermediate relay, a time relay and a position switch, so as to realize the passage at the entrance and exit of the escalator.

[0019] 2. The utility model sets two time relays, and connects the time relays in series to realize the delay control of the entrance and the exit, thus avoiding the damage to pedestrians caused by immediate action.

[0020] 3. The utility model makes the access control device at the entrance and exit of the escalator and the control of the passage at the entrance and exit of the escalator reach synchronization through a synchronization sub-circuit, so as to avoid the damage caused by non-synchronization.

[0021] 4. The utility model realizes the interlock of the entrance or the exit and the forward or reverse rotation of the three-phase motor by setting a contactor. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the control sub-circuit of the utility model;

[0023] Figure 2 It is a schematic diagram of the output sub-circuit of the utility model;

[0024] Figure 3 It is a schematic diagram of the synchronization sub-circuit of the utility model.

[0025] KA. Intermediate relay; KT1. First time relay; KT2. Second time relay; KM1. First contactor; KM2. Second contactor; KM3. Third contactor; KM4. Fourth contactor; KM6. Sixth contactor; SQ1. Normally closed position switch for the entrance door opened in place; SQ2. Normally closed position switch for the entrance door closed in place; SQ3. Normally closed position switch for the exit door opened in place; SQ4. Normally closed position switch for the exit door closed in place. Detailed Embodiment

[0026] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0027] Most outdoor escalators do not have devices to open and close the entrances and exits. Only a very small number of outdoor escalator entrances and exits are equipped with manual swing doors, which require management personnel to open or close and lock them. The environment where outdoor escalators are located is relatively harsh. For example, rain will cause the steps to be slippery and rainwater, mud, and sand will penetrate into the equipment, exacerbating equipment wear. Their equipment wears and ages severely, has a high failure rate, and is often in a stopped state; the step drop is relatively large, which is likely to cause people to trip, fall, or roll down. Even in the non-operating state, as mentioned in GB16899-2011 "Safety Rules for the Construction and Installation of Escalators and Moving Walks", it cannot be used as a fixed staircase; for some equipment (such as escalators on overpasses), the management personnel are far away, the number of users is extremely small late at night, and in case of an accident, the equipment cannot be shut down in time. To sum up, there should be a device that can automatically shut down the equipment in harsh environments and during low-usage periods, start the equipment in good environments and during peak-usage periods, and prevent people from using the equipment when it is in a non-operating state. This article introduces a circuit for the entrance and exit control device of an outdoor escalator, which can automatically close the entrance and exit and stop the operation of the outdoor escalator within non-scheduled time, automatically open the entrance and exit and start the outdoor escalator within scheduled time and when it is not raining, and automatically close the entrance and exit and stop the operation of the outdoor escalator when it is raining within scheduled time. Place the control device at the entrance and exit of the outdoor escalator to achieve the control of the entrance and exit of the outdoor escalator.

[0028] Therefore, the present utility model provides a circuit for an entrance and exit control device of an outdoor escalator. By setting a rain drop sensor, a cycle timer, a distance sensor, an intermediate relay, a time relay, and a position switch, the entrance and exit control device of the escalator is controlled to realize the passage of the entrance and exit of the escalator; two time relays are set, and the time relays are connected in series to achieve the delay control of the entrance and the exit, avoiding the damage to pedestrians caused by immediate action; through the synchronization sub-circuit, the entrance and exit control device of the escalator and the control of the passage of the entrance and exit of the escalator are synchronized, avoiding the damage caused by non-synchronization; by setting a contactor, the interlock of the entrance or the exit and the forward or reverse rotation of the three-phase motor are realized.

[0029] Embodiment 1

[0030] As Figures 1 - 3The circuit of an outdoor escalator entrance and exit control device further includes an intermediate relay KA, a time relay KT, a timing circulator, a rain drop sensor, a ranging sensor, and a position switch. The intermediate relay KA includes an intermediate relay coil and an intermediate relay normally open contact. The time relay KT includes a time relay coil and a time relay normally open contact. The intermediate relay normally open contact, the time relay normally open contact, and the position switch are connected in sequence to form a control sub-circuit. The intermediate relay coil, the time relay coil, the timing circulator, the rain drop sensor, and the ranging sensor are connected in sequence to form an output sub-circuit. The intermediate relay normally open contact and the position switch are connected in sequence to form a synchronization sub-circuit.

[0031] The position switch includes a normally closed position switch SQ1 for entrance door opening in place, a normally closed position switch SQ2 for entrance door closing in place, a normally closed position switch SQ3 for exit door opening in place, and a normally closed position switch SQ4 for exit door closing in place. The control sub-circuit includes the normally closed position switch SQ1 for entrance door opening in place, the normally closed position switch SQ2 for entrance door closing in place, the normally closed position switch SQ3 for exit door opening in place, and the normally closed position switch SQ4 for exit door closing in place connected in parallel. The synchronization sub-circuit includes the normally closed position switch SQ4 for exit door closing in place and the intermediate relay normally open contact connected in series.

[0032] In this embodiment, the contactor further includes a fifth contactor KM5. The fifth contactor KM5 includes a fifth contactor normally open contact and a fifth contactor coil. When the fifth contactor coil is energized, the control sub-circuit is energized and self-locked. When the first contactor coil is energized, the entrance control device starts to open until it touches the normally closed position switch SQ1 for entrance door opening in place and then stops running. When the third contactor coil is energized, the exit control device starts to open until it touches the normally closed position switch SQ3 for exit door opening in place and then stops running. When the second contactor coil is energized, the entrance control device starts to close until it touches the normally closed position switch SQ2 for entrance door closing in place and then stops running. When the fourth contactor coil is energized, the exit control device starts to close until it touches the normally closed position switch SQ4 for exit door closing in place and then stops running.

[0033] The intermediate relay normally open contact in the control sub-circuit is connected in series with the normally closed position switch SQ1 for entrance door opening in place. The intermediate relay normally open contact in the control sub-circuit is connected in series with the normally closed position switch SQ3 for exit door opening in place.

[0034] The intermediate relay normally open contact in the synchronization sub-circuit is connected in series with the normally closed position switch SQ4 for exit door closing in place.

[0035] The time relay KT includes a first time relay KT1 and a second time relay KT2. The first time relay KT1 includes a first time relay coil and a first time relay normally open contact. The second time relay KT2 includes a second time relay coil and a second time relay normally open contact. The first time relay coil and the second time relay coil are connected in series. The first time relay normally open contact and the normally closed position switch SQ2 for the entrance door closed in place are connected in series. The second time relay normally open contact and the normally closed position switch SQ4 for the exit door closed in place are connected in series.

[0036] The timing circulator includes a DO1 terminal and a DO2 terminal. The rain drop sensor includes a DO3 terminal and a DO4 terminal. The ranging sensor includes a DO5 terminal. The intermediate relay coil is respectively connected to the DO1 terminal and the DO3 terminal. The first time relay coil is respectively connected to the DO1 terminal, the DO2 terminal, the DO4 terminal and the DO5 terminal.

[0037] In this embodiment, it further includes a voltage conversion sub-circuit, including a transformer, a diode, an electrolytic capacitor, a zener diode, a triode, etc. The AC 220V voltage is converted into an AC 9V voltage through the transformer, and then the AC 9V voltage is converted into a 5V DC voltage through a rectifying and voltage stabilizing circuit to supply power to the subsequent circuit. The VCC terminals of the timing circulator, the rain drop sensor and the ranging sensor are connected to the 5V DC voltage. The GND terminals of the timing circulator, the rain drop sensor and the ranging sensor are grounded. The timing circulator is a 24-hour timer, and the timing time can be set. For example, if the timing time is set to 7:00 - 20:00, then from 7:00 to 20:00, the DO1 terminal outputs a high level and the DO2 terminal outputs a low level. From 20:00 to 7:00, the DO1 terminal outputs a low level and the DO2 terminal outputs a high level.

[0038] The detection voltage of the rain drop sensor changes with the size or amount of the detected rain drops. The larger the rain drops or the more the rain drops, the smaller the detection voltage. The sensitivity of the rain drop sensor can be adjusted by setting a voltage threshold to prevent it from malfunctioning due to the influence of dust and sand, etc. For example, if the voltage threshold is set to 3V, then when the detection voltage is greater than or equal to 3V, it is determined that it is not raining, the DO3 terminal outputs a high level, and the DO4 terminal outputs a low level. When the detection voltage is less than 3V, it is determined that it is raining, the DO3 terminal outputs a low level, and the DO4 terminal outputs a high level.

[0039] The ranging sensor can set a distance threshold to determine whether there is someone at the entrance. For example, if the distance threshold is set to 2m, then when it is greater than or equal to 2m, it is determined that there is no one, and the DO5 terminal outputs a high level. When it is less than 2m, it is determined that there is someone, and the DO5 terminal outputs a low level.

[0040] When the coil of the intermediate relay is energized, the access control device starts to open. When the first time relay and the second time relay are energized, the access control device starts to close. The first time relay can be set to 5s to prevent personal injury caused by someone being between the ranging sensor and the entrance control device. The second time relay needs to be set to the time set by the first time relay plus the expected conveying time of the outdoor escalator plus 10s (for example, if the first time relay is set to 10s and the expected conveying time of the outdoor escalator from the entrance to the exit is 20s, then the second time relay is set to 40s) to ensure that people can leave the outdoor escalator before the exit is closed.

[0041] The circuit further includes a contactor, a three-phase power supply, and a three-phase motor. The contactor includes a contactor coil and a normally open contact of the contactor. The contactor coil is connected in series with the position switch. The three-phase power supply and the three-phase motor are connected through the normally open contact of the contactor.

[0042] In this embodiment, the U phase, V phase, and W phase of the three-phase motor are connected to L1, L2, and L3 of the three-phase power supply through the normally open contact of the contactor. The forward or reverse rotation of the motor is controlled by controlling the contactor, and interlocking is achieved by setting the normally open contact of the contactor.

[0043] The contactor includes a first contactor KM1 and a second contactor KM2. The first contactor KM1 includes a first normally open contact of the contactor, a first contactor coil, and a first normally closed contact of the contactor. The second contactor KM2 includes a second normally open contact of the contactor, a second contactor coil, and a second normally closed contact of the contactor. The first normally open contact of the contactor is connected in parallel with the normally open contact of the intermediate relay. The second normally closed contact of the contactor, the first contactor coil, and the normally open contact of the intermediate relay are connected in series. The second normally open contact of the contactor is connected in parallel with the normally open contact of the first time relay. The first normally closed contact of the contactor, the second contactor coil, and the normally open contact of the first time relay are connected in series. The three-phase power supply and the three-phase motor are connected through the first normally open contact of the contactor or the second normally open contact of the contactor.

[0044] The contactor further includes a third contactor KM3 and a fourth contactor KM4. The third contactor KM3 includes a third normally open contact of the contactor, a third contactor coil, and a third normally closed contact of the contactor. The fourth contactor KM4 includes a fourth normally open contact of the contactor, a first contactor coil, and a fourth normally closed contact of the contactor. The third normally open contact of the contactor is connected in parallel with the normally open contact of the intermediate relay. The fourth normally closed contact of the contactor, the third contactor coil, and the normally open contact of the intermediate relay are connected in series. The fourth normally open contact of the contactor is connected in parallel with the normally open contact of the second time relay. The third normally closed contact of the contactor, the fourth contactor coil, and the normally open contact of the second time relay are connected in series. The three-phase power supply and the three-phase motor are connected through the third normally open contact of the contactor or the fourth normally open contact of the contactor.

[0045] The contactor further includes a sixth contactor KM6, which includes a normally open contact of the sixth contactor and a coil of the sixth contactor. The normally open contact of the sixth contactor is in parallel with the intermediate relay, and the coil of the sixth contactor is in series with the intermediate relay. The three-phase power supply and the three-phase motor are connected through the normally open contact of the sixth contactor.

[0046] In this embodiment, there are also provided a disconnecting switch QS1 and a disconnecting switch QS2, which are respectively connected in series in the three-phase power supply to control the on and off of the three-phase power supply. The circuit further includes a neutral line N, which is respectively connected to the coils of the first contactor, the second contactor, the third contactor, the fourth contactor, the fifth contactor, and the sixth contactor. The circuit is also provided with a plurality of fuses FU and a plurality of thermal relays FR to protect the circuit.

[0047] The circuit further includes a plurality of push-button switches for controlling start or stop. Pressing the start button SB1 starts the device, and the device operates automatically according to the time, rain condition, and the situation of the personnel at the entrance fed back by the auxiliary circuit. Pressing the stop button SB2 stops the operation of the device. The push-button switch SB3 starts the outdoor escalator. The coil of the contactor KM7 is energized, and the normally open contact of the contactor KM7 closes, making the running direction of the outdoor escalator from the exit to the entrance of the outdoor escalator entrance control device. The normally open contacts of the contactor KM8 and KM9 make the starting mode of the motor star-delta step-down starting.

[0048] The control principle of the circuit is as follows: Press SB1 to start the outdoor escalator entrance and exit control device, and press SB3 to start the outdoor escalator. When it is within the timing period and there is no rain, a high level is output at the DO1 terminal, and a high level is output at the DO3 terminal. The coil of the intermediate relay is energized, and the normally open contact of the intermediate relay is closed. The outdoor escalator starts, and the outdoor escalator entrance and exit control device starts to open until it touches SQ1 and SQ3 and then stops running; When it is within the timing period, it is raining and there is no one at the entrance, a high level is output at the DO1 terminal, a high level is output at the DO4 terminal, and a high level is output at the DO5 terminal. The coils of the first time relay and the second time relay are energized. After the first time relay delays for the set time, the normally open contact of the first time relay is closed. The outdoor escalator entrance control device starts to close until it touches SQ2 and then stops running. After the second time relay delays for the set time plus the expected conveying time of the outdoor escalator, the normally open contact of the second time relay is closed. The outdoor escalator exit control device starts to close until it touches SQ4 and then stops running, and the outdoor escalator also stops running; When it is not within the timing period and there is no one at the entrance, a high level is output at the DO2 terminal, and a high level is output at the DO5 terminal. The coils of the first time relay and the second time relay are energized. After reaching the set delay time, the normally open contact of the first time relay is closed. The outdoor escalator entrance control device starts to close until it touches SQ2 and then stops running. After reaching the set delay time plus the expected conveying time of the outdoor escalator plus 10s, the normally open contact of the second time relay is closed. The outdoor escalator exit control device starts to close until it touches SQ4 and then stops running, and the outdoor escalator also stops running.

[0049] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A circuit for an outdoor escalator entrance and exit control device, characterized in that: The circuit includes an intermediate relay, a time relay, a timing circulator, a raindrop sensor, a distance measuring sensor and a position switch. The intermediate relay includes an intermediate relay coil and an intermediate relay normally open contact. The time relay includes a time relay coil and a time relay normally open contact. The intermediate relay normally open contact, the time relay normally open contact and the position switch are connected in sequence to form a control subcircuit. The intermediate relay coil, the time relay coil, the timing circulator, the raindrop sensor and the distance measuring sensor are connected in sequence to form an output subcircuit. The intermediate relay normally open contact and the position switch are connected in sequence to form a synchronization subcircuit.

2. A circuit for an outdoor escalator entrance and exit control device according to claim 1, characterized in that: The position switch comprises an entrance door-opening position switch (SQ1), an entrance door-closing position switch (SQ2), an exit door-opening position switch (SQ3) and an exit door-closing position switch (SQ4); the control subcircuit comprises the entrance door-opening position switch (SQ1), the entrance door-closing position switch (SQ2), the exit door-opening position switch (SQ3) and the exit door-closing position switch (SQ4) connected in parallel; the synchronization subcircuit comprises the exit door-closing position switch (SQ4) and an intermediate relay normally open contact connected in series.

3. A circuit for an outdoor escalator entrance and exit control device according to claim 2, characterized in that: The normally open contact of the intermediate relay in the control subcircuit is connected in series with the normally closed position switch (SQ1) at the entrance door opening position, and the normally open contact of the intermediate relay in the control subcircuit is connected in series with the normally closed position switch (SQ3) at the exit door opening position.

4. A circuit for an outdoor escalator entrance and exit control device according to claim 2, characterized in that: The normally open contact of the intermediate relay in the synchronous subcircuit is connected in series with the normally closed position switch (SQ4) of the exit door closing position.

5. A circuit for an outdoor escalator entrance and exit control device according to claim 2, characterized in that: The time relay comprises a first time relay and a second time relay, the first time relay comprises a first time relay coil and a first time relay normally open contact, the second time relay comprises a second time relay coil and a second time relay normally open contact; the first time relay coil and the second time relay coil are connected in series, the first time relay normally open contact and the entrance door closed position normally closed switch (SQ2) are connected in series, and the second time relay normally open contact and the exit door closed position normally closed switch (SQ4) are connected in series.

6. A circuit for an outdoor escalator entrance and exit control device according to claim 5, characterized in that: The timing circulator includes a DO1 terminal and a DO2 terminal, the raindrop sensor includes a DO3 terminal and a DO4 terminal, the ranging sensor includes a DO5 terminal, the intermediate relay coil is connected to the DO1 terminal and the DO3 terminal respectively, and the first time relay coil is connected to the DO1 terminal, the DO2 terminal, the DO4 terminal and the DO5 terminal respectively.

7. A circuit for an outdoor escalator entrance and exit control device according to claim 6, characterized in that: The circuit also includes a contactor, a three-phase power supply and a three-phase motor. The contactor includes a contactor coil and a contactor normally open contact. The contactor coil is connected in series with a position switch. The three-phase power supply and the three-phase motor are connected via the contactor normally open contact.

8. A circuit for an outdoor escalator entrance and exit control device according to claim 7, characterized in that: The contactor includes a first contactor and a second contactor, the first contactor includes a first contactor normally open contact, a first contactor coil and a first contactor normally closed contact, the second contactor includes a second contactor normally open contact, a second contactor coil and a second contactor normally closed contact; the first contactor normally open contact and the intermediate relay normally open contact are connected in parallel, the second contactor normally closed contact, the first contactor coil and the intermediate relay normally open contact are connected in series, the second contactor normally open contact and the first time relay normally open contact are connected in parallel, the first contactor normally closed contact, the second contactor coil and the first time relay normally open contact are connected in series, and the three-phase power supply and the three-phase motor are connected through the first contactor normally open contact or the second contactor normally open contact.

9. A circuit for an outdoor escalator entrance and exit control device according to claim 7, characterized in that: The contactor further comprises a third contactor and a fourth contactor, the third contactor comprising a third contactor normally open contact, a third contactor coil and a third contactor normally closed contact, and the fourth contactor comprising a fourth contactor normally open contact, a first contactor coil and a fourth contactor normally closed contact; The normally open contact of the third contactor and the normally open contact of the intermediate relay are connected in parallel, the normally closed contact of the fourth contactor, the third contactor coil and the normally open contact of the intermediate relay are connected in series, the normally open contact of the fourth contactor and the normally open contact of the second time relay are connected in parallel, the normally closed contact of the third contactor, the fourth contactor coil and the normally open contact of the second time relay are connected in series, and the three-phase power supply and the three-phase motor are connected via the normally open contact of the third contactor or the normally open contact of the fourth contactor.

10. A circuit for an outdoor escalator entrance and exit control device according to claim 7, characterized in that: The contactor also includes a sixth contactor, which includes a sixth contactor normally open contact and a sixth contactor coil. The sixth contactor normally open contact is connected in parallel with an intermediate relay, and the sixth contactor coil is connected in series with the intermediate relay. The three-phase power supply and the three-phase motor are connected via the sixth contactor normally open contact.

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