Mine transportation system overhead personnel carrier control device

Abstract

This mine transportation system's overhead personnel carrier control device belongs to the field of control equipment technology. It includes a personnel detection mechanism, a receiving circuit, a rope-supporting wheel detection mechanism, and a control circuit. The personnel detection mechanism comprises a battery, photoelectric switch, wireless transmitting circuit module, time module, and magnet installed within a housing. The personnel detection mechanism is attached to the lower end of the seat. The rope-supporting wheel detection mechanism includes a pressure sensor, a detection circuit, and a guide seat, and is installed at the rope-supporting wheel installation position on the overhead personnel carrier. The detection circuit, receiving circuit, and control circuit are installed in an electrical control box and connected by wires. When no one is sitting in the seats, the electric drive wheel mechanism does not operate. When someone is sitting in one of the seats, the electric drive wheel mechanism drives the seat, providing convenience for workers and saving energy. When the wire rope detaches from any of the rope-supporting wheels, the power supply to the electric drive wheel mechanism is disconnected, ensuring good safety.

Description

Technical Field

[0001] This utility model relates to the field of mine transportation equipment technology, and in particular to a control device for overhead personnel carriers in a mine transportation system. Background Technology

[0002] The overhead personnel carrier (commonly known as a "monkey car") in a mine transportation system is an auxiliary personnel transportation device used in inclined, horizontal, or undulating roadways in coal mines. It aims to shorten the time for miners to go up and down the mine and reduce physical exertion. The main structure includes an electric drive wheel mechanism, multiple rope pulleys, steel wire ropes, multiple seats (the upper end of the seats is fixed to the upper end of the steel wire ropes, and the seats move slowly, allowing workers to get on and off the ground directly from the seats without turning off the power to the electric drive wheel mechanism), tensioning devices, etc. During operation, the electric drive wheel mechanism outputs power to drive the steel wire ropes to circulate. Workers sit on the suspended chairs and are attached to the steel wire ropes to achieve personnel transportation, facilitating workers' travel between the surface and the underground.

[0003] With technological advancements, the functions of overhead personnel carriers in mine transportation systems have become increasingly sophisticated. For example, the authorized patent in my country, patent number "201320881825.X" entitled "A Frequency Conversion Electrical Control System for Underground Personnel Carts in Coal Mines," states that "the purpose of this utility model is to form a two-way protection system through the operation feedback protection and fault protection of the frequency converter, which complements each other and increases the system's safety and reliability." As can be seen from the above, although the patent achieves its stated purpose, due to structural and functional limitations, it, like other equipment in the field, still suffers from the following technical problems. First, the equipment's start and stop require manual control by personnel. That is, when personnel need to travel between the surface and underground, they must manually turn the equipment's control power switch on or off. This causes inconvenience for the personnel. More importantly, if personnel forget to turn off the control power switch when they reach the designated location, it will cause unnecessary wear and tear and energy consumption. Second: It lacks a safety detection function. When the wire rope jumps out of the upper groove of the corresponding support pulley for various reasons, it will sag because it cannot be effectively supported. This poses a significant safety hazard to workers sitting in the seat (the electric drive wheel mechanism may slip and fail to effectively drive the seat through the wire rope, leaving workers between the underground and above ground, in an area with poor air quality for a long time, which may have an adverse effect on their physical and mental health; or the excessively long wire rope may kink or even break during movement, causing injury to the workers sitting in the seat). Utility Model Content

[0004] To overcome the shortcomings of existing aerial personnel carriers in mine transportation systems, which lack practical safety control equipment and suffer from the drawbacks described in the background art, this utility model provides an aerial personnel carrier control device for mine transportation systems. Under the action of the relevant equipment, the electric drive wheel mechanism will not operate when no one is sitting in the seat; it will only drive the seat when someone is sitting in one of the seats. This provides convenience for workers and saves energy. It can monitor in real time whether each rope-supporting wheel is providing good support for the wire rope. When the wire rope detaches from any rope-supporting wheel, it can promptly disconnect the power supply to the electric drive wheel mechanism and alert workers to the cause of the malfunction. This achieves a good safety effect and reduces the probability of accidents involving workers.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] The mine transportation system's overhead personnel carrier control device includes a personnel detection mechanism, a receiving circuit, a rope wheel detection mechanism, and a control circuit. Multiple sets of the personnel detection mechanism and rope wheel detection mechanism are included. Each personnel detection mechanism comprises a battery, a photoelectric switch, a wireless transmitting circuit module, a time module, a housing, and a magnet. The upper end of the housing and the magnet have openings. The lower end of the magnet is fixedly installed on the upper end of the housing. The battery, photoelectric switch, wireless transmitting circuit module, and time module are installed inside the housing. A seat has an opening. The housing of each personnel detection mechanism is magnetically attached to the lower end of the seat. The power output terminal of the photoelectric switch and the power input terminal of the time module are connected by wires, and the power output terminal of the time module and the power input terminal of the wireless transmitting circuit module are also connected by wires. The rope wheel detection... The mechanism includes a pressure sensor, a detection circuit, and a guide seat. A limit plate is fixedly installed at the front end of the guide seat, and a movable block is slidably installed inside the limit plate. The pressure sensor is fixedly installed at the lower end of the guide seat, and a shaft is fixedly installed at the front end of the movable block. The front end of the shaft is rotatably mounted together with the rope-supporting wheel. The rear outer sides of the guide seats of multiple sets of rope-supporting wheel detection mechanisms are respectively fixedly installed at multiple rope-supporting wheel installation positions of the aerial personnel carrier. The detection circuit and control circuit of the multiple sets of rope-supporting wheel detection mechanisms are installed in the electrical control box. The signal output terminal of the detection circuit of the multiple sets of rope-supporting wheel detection mechanisms and the signal input terminal of the control circuit are connected by wires. The control signal input terminal of the receiving circuit and the control power output terminal of the control circuit are connected by wires. The control power output terminal of the receiving circuit and the power input terminal of the electric drive wheel mechanism of the aerial personnel carrier are connected by wires.

[0007] Preferably, the probe and magnet of the photoelectric switch, the opening at the upper end of the housing, and the seat opening are on the same vertical plane.

[0008] Preferably, the two contacts under one of the wireless signal transmission buttons of the wireless transmission circuit module are connected together by a wire.

[0009] Preferably, the lower end of the movable block contacts the upper end of the pressure sensor's force-bearing surface, and the steel wire rope of the overhead personnel carrier is located in the groove of the upper end of the rope-supporting wheel.

[0010] Preferably, the receiving circuit includes a wireless receiving circuit module and a relay electrically connected together, with one power output terminal of the wireless receiving circuit module connected to the power input terminal of the relay.

[0011] Preferably, the detection circuit of the rope-supporting wheel detection mechanism includes a resistor, a transistor, and a relay connected electrically, and is connected to a pressure sensor via a wire. The positive power input terminal of the pressure sensor is connected to the positive power input terminal and the control power input terminal of the relay. The negative power input terminal of the pressure sensor is connected to one end of the first resistor and the emitter of the transistor. The signal output terminal of the pressure sensor is connected to one end of the second resistor. The other end of the second resistor is connected to one end of the third resistor and the other end of the first resistor. The other end of the third resistor is connected to the base of the transistor. The collector of the transistor is connected to the negative power input terminal of the relay.

[0012] Preferably, the control circuit includes a thyristor, a resistor, and a relay electrically connected together. The control electrode of the thyristor is connected to one end of the resistor, the cathode of the thyristor is connected to the positive power input terminal of the relay and the buzzer, and the negative power input terminal of the buzzer is connected to the negative power input terminal of the relay.

[0013] Compared with the prior art, the advantages of this utility model are: (1) In this utility model, when no one is sitting on the seat, the wireless transmission circuit module will not transmit wireless signals, and the electric drive wheel mechanism will not work. When someone is sitting on one of the seats, the wireless transmission circuit module will transmit wireless signals, and the electric drive wheel mechanism will drive the seat to move, which brings convenience to the staff and saves energy accordingly; (2) The multiple sets of rope-supporting wheel detection mechanisms can monitor in real time whether multiple rope-supporting wheels have played a good supporting role for the wire rope. When the wire rope comes off any of the rope-supporting wheels, the control circuit can disconnect the power supply of the electric drive wheel mechanism in time and sound the alarm to remind the staff of the cause of the fault, which can play a good safety role and reduce the probability of safety accidents for the staff. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure between the entire utility model and the overhead personnel carrier of the mine transportation system.

[0016] Figure 2 This is a partial structural diagram of the seat in the overhead personnel carrier of the mine transportation system.

[0017] Figure 3This is a partial structural diagram of the wire rope and rope-supporting wheel of the overhead personnel carrier in the mine transportation system.

[0018] Figure 4 This is a schematic diagram of the personnel detection mechanism of this utility model.

[0019] Figure 5 This is a partial structural schematic diagram of the rope-supporting wheel detection mechanism of this utility model.

[0020] Figure 6 , 7 It is a utility model circuit diagram. Detailed Implementation

[0021] Figure 1 , 2As shown in Figures 3, 4, 5, 6, and 7, the control device for the aerial personnel carrier in the mine transportation system includes a power module W3, a personnel detection mechanism 4, a receiving circuit 1, a rope wheel detection mechanism, and a control circuit 2. Multiple sets of the personnel detection mechanism 4 and the rope wheel detection mechanism are included, with the number of personnel detection mechanisms matching the number of seats 31 on the aerial personnel carrier 3. Each seat 31 is equipped with one set of personnel detection mechanism 4. The number of rope wheel detection mechanisms matches the number of rope wheels 32 on the aerial personnel carrier, with each rope wheel 32 equipped with one set of rope wheel detection mechanism. Each set of personnel detection mechanisms includes a battery G1, a charging socket CZ, a power switch D1, and a photoelectric switch W. 1. The system comprises a wireless transmitting circuit module W2, a time module W6, a housing 41, and a permanent magnet 42. The housing 41 has an opening at its upper end, and the magnet 42 has an opening in its middle section. The lower end of the magnet 42 is glued to the upper end of the housing 41. The battery G1, charging socket CZ, power switch D1, photoelectric switch W1, time module W6, and wireless transmitting circuit module W2 are mounted on a circuit board inside the housing 41. The seat 31 (made of steel) has an opening in its middle. The housing 41 of each personnel detection mechanism is attracted to the lower end of the seat by the magnet 42 (for easy removal of the housing to insert the external power charger into the charging socket to charge the battery G1). The two poles of the battery G1 and the two ends of the charging socket CZ are connected by wires, and connected in series through the power switch D1 and the power input terminals 1 and 2 of the photoelectric switch W1 by wires. The power output terminals 3 and 2 of the photoelectric switch W1 and the power input terminals 1 and 2 of the time module W6 are connected by wires. The power output terminals 3 and 2 of the time module W6 and the power input terminals 1 and 2 of the wireless transmission circuit module W2 are connected by wires. The rope-supporting wheel detection mechanism includes a pressure sensor W5, a detection circuit 51, and a guide seat 52. A limiting plate 53 is fixedly installed on the left and right sides of the front end of the guide seat 52. A movable block 54 (which can be limited to move up or down within the guide seat by the limiting plate) is slidably installed inside the limiting plate 53. The pressure sensor W5 is fixedly installed at the lower end of the guide seat 52 with its sensing surface on the upper side. A shaft 55 is longitudinally installed at the middle of the front end of the movable block 54. The front end of the shaft 55 is fixedly installed in the inner ring of the bearing in the middle of the rope-supporting wheel 32. The rear outer sides of the guide seats 52 of the multiple sets of rope-supporting wheel detection mechanisms are respectively fixedly installed at the rope-supporting wheel installation position of the overhead personnel carrier 3. The detection circuit 51, power module W3, and control circuit 2 of the multiple sets of rope-supporting wheel detection mechanisms are installed in the electrical control box 6 of the overhead personnel carrier.The 220V AC power supply is connected in series with the power switch D2 and the power input terminals 1 and 2 of the power module W3 via wires. The wireless receiving circuit module W4 of the receiving circuit, the positive power input terminal of the relay J2 and the emitter of the transistor T1 of the detection circuit of the multiple sets of rope wheel detection mechanism, the power input terminals 1 and 2 of the pressure sensor W5, the power input terminal of the control circuit, the anode of the thyristor VS and the negative power input terminal of the buzzer B, and the power output terminals 3 and 4 of the power module W3 are connected via wires. The normally closed contact of relay J2, the signal output terminal of the detection circuit of the multiple rope-supporting wheel detection mechanism, and the other end of resistor R4, the signal input terminal of the control circuit, are connected by wires. The three control power input terminals of relay J1, the control signal input terminal of the receiving circuit, and the three normally closed contacts of relay J3, the control power output terminal of the control circuit, are connected by wires. The three control power input terminals of relay J3, the control circuit, and the 380V AC power supply are connected by wires. The three normally open contacts of relay J1, the control power output terminal of the receiving circuit, and the three power input terminals of motor M, the electric drive wheel mechanism of the overhead personnel carrier, are connected by wires.

[0022] Figure 1 , 2As shown in Figures 3, 4, 5, 6, and 7, the probe and magnet 42 of the photoelectric switch W1, and the opening at the top of the housing 41 are aligned vertically from top to bottom. The openings of the housing 41 and the seat 31 are also aligned vertically from top to bottom. The two contacts of the first wireless signal transmitting button S1 of the wireless transmitting circuit module W2 are connected together by a wire. The lower end of the movable block 54 contacts the upper end of the force-bearing surface of the pressure sensor W5, and the steel wire rope 33 of the overhead vehicle is located in the groove at the upper end of the rope-supporting wheel 32. The receiving circuit includes a wireless receiving circuit module W4 and a relay J1 connected via circuit board wiring. One of the power output terminals 3 and 2 of the wireless receiving circuit module W4 is connected to the power input terminal of the relay J1. The detection circuit of the rope-supporting wheel detection mechanism includes resistors R1, R2, and R3 connected via circuit board wiring, transistor T1, relay J2, and pressure sensor W5 connected via wires. The positive power input terminal 1 of pressure sensor W5 is connected to the positive power input terminal and control power input terminal of relay J2. The negative power input terminal 2 of pressure sensor W5 is connected to one end of the first resistor R2 and the emitter of transistor T1. The signal output terminal 3 of pressure sensor W5 is connected to one end of the second resistor R1. The other end of the second resistor R1 is connected to one end of the third resistor R3 and the other end of the first resistor R2. The other end of the third resistor R3 is connected to the base of transistor T1. The collector of transistor T1 is connected to the negative power input terminal of relay J2. The control circuit includes a thyristor VS, a resistor R4, a relay J3, and a buzzer B connected via circuit board wiring. The control electrode of the thyristor VS is connected to one end of the resistor R4. The cathode of the thyristor VS is connected to the positive power input terminal of the relay J3 and the buzzer B. The negative power input terminal of the buzzer B is connected to the negative power input terminal of the relay J3. Figure 6 , 7In the configuration, battery G1 is a 12V / 5Ah model; time module W6 is a Delixi brand, model KG316T time power controller, which has two power input terminals, two power output terminals, and seven setting buttons. Operating the seven setting buttons allows setting the output time of the two power output terminals; wireless transmitter circuit module W2 and wireless receiver circuit module W4 are finished wireless transmitter and receiver components with a transmission and reception range of 3000 meters (their structure and working principle are consistent with existing wireless remote control and receiver components used in industrial applications); power module W3 is a finished AC 220V to DC 12V power module; relays J1, J2, and J3 are DC 12V... Relays (J1 and J3 can also be DC contactors); Transistor T1 is model 9013; Resistors R1, R2, and R3 have resistance values ​​of 10K, 6K, and 4.7K respectively; Pressure sensor W5 is a finished pressure sensor of model HZC-T, which has two power input terminals and one signal output terminal; Sounder B is an active continuous audible alarm; Photoelectric switch W1 is a photoelectric sensor of model E3F-DS30N12, which has two power input terminals and one signal output terminal. When there is an obstacle in front of its probe, the signal output terminal outputs power, and vice versa; Thyristor VS is a plastic-encapsulated single-phase thyristor of model MCR100-1.

[0023] Figure 1 , 2As shown in 3, 4, 5, 6, and 7, before using this new type of equipment, turn on the power switch D1 of all personnel detection mechanisms (generally, charge it about once a month). The photoelectric switch W1 will be powered on and will work. When no one needs to travel between the mine and the surface and sit on the seat 31, the probe of the photoelectric switch W1 will not be blocked by any object and its pin 3 will not output a high level. Therefore, the wireless transmission circuit module W2 will not transmit a wireless closed signal, and correspondingly, the electric drive wheel mechanism of the mine transportation system's overhead personnel carrier will not work. When someone needs to move between the well and the surface and sit on seat 31, the probe of photoelectric switch W1 is blocked by an object, and its pin 3 outputs a high level, which enters the positive power input terminal of time module W6. Time module W6 is powered on and starts working. After time module W6 is powered on, its pins 3 and 4 output power to the power input terminal of wireless transmission circuit module W2 after a 5-second interval. Since the two contacts under the first wireless transmission button S1 of wireless transmission circuit module W2 are connected together, after someone sits on any seat, wireless transmission circuit module W2 will transmit the first wireless closed signal after a 5-second interval. Subsequently, the electric drive wheel mechanism will be powered on and start working (the 5-second delay is to prevent the electric drive wheel mechanism from working and moving the seat before the worker is properly seated, which would affect the worker's safety. Since wireless transmission circuit module W2 will transmit the wireless closed signal and the electric drive wheel mechanism will move the seat after a 5-second interval after the worker sits on the seat, it prevents the safety hazard of the worker not being properly seated). After the 220V AC power enters the power input terminal of the power module W3, pins 3 and 4 of the power module W3 output 12V DC power, which enters the power input terminals of the receiving circuit, control circuit, multi-channel detection circuit, and pressure sensor. The wireless transmitting circuit module W2 transmits the first wireless closed signal. Within a 3000-meter range, the wireless receiving circuit module W4 receives this signal and outputs a high level at pin 3, which enters the positive power input terminal of relay J1. Relay J1 is energized and its control power input terminal and normally open contact terminal close. Then, the 380V power enters the three power input terminals of the electric drive wheel mechanism M of the overhead personnel carrier via the control power input terminal and normally closed contact terminal of relay J3, and the control power input terminal and normally open contact terminal of relay J1. Thus, the motor of the electric drive wheel mechanism M is energized and drives multiple seats to move back and forth between the underground and above-ground areas. After no one sits in the seat, the wireless transmitting circuit module at the seat location does not transmit the first wireless closed signal. Then, pin 3 of the wireless receiving circuit module W4 no longer outputs a high level. As a result, relay J1 will lose power and stop engaging. Consequently, the electric drive wheel mechanism of the overhead personnel carrier in the mine transportation system will automatically stop working.As described above, in this new invention, when no one is sitting in the seat, the wireless transmitting circuit module will not transmit wireless signals, and correspondingly, the electric drive wheel mechanism will not work. When someone is sitting in one of the seats, the wireless transmitting circuit module will transmit wireless signals, and the electric drive wheel mechanism will drive the seat to move, which brings convenience to the staff and saves energy accordingly.

[0024] Figure 1 , 2As shown in Figures 3, 4, 5, 6, and 7, in the multi-set rope-supporting wheel detection mechanism, when the wire rope fails to disengage from the upper end of the groove of the corresponding rope-supporting wheel 32, the weight of the wire rope 33 causes the corresponding rope-supporting wheel to increase the pressure exerted by the movable block 54 on the force-bearing surface of the corresponding pressure sensor W5. The voltage signal output from pin 3 of the corresponding pressure sensor W5 is relatively high. This voltage signal is divided by resistors R1 and R2, and the current is limited by resistor R3. The voltage at the base of the corresponding transistor T1 is higher than the base starting voltage of transistor T1, causing transistor T1 to conduct. The collector outputs a low level, which then enters the negative terminal of the corresponding relay J2. When the power input terminal is closed, the corresponding relay J2 is energized and its control power input terminal and normally closed contact terminal are open. Therefore, the relay of the corresponding set of rope wheel detection mechanism will not output a high level to the other end of the control circuit resistor R4, and the relay J3 will not be energized. Correspondingly, when someone sits on the seat, the 380V power supply will continue to enter the three power input terminals of the electric drive wheel mechanism motor M of the overhead personnel carrier through the control power input terminal and normally closed contact terminal of relay J3, and the control power input terminal and normally open contact terminal of relay J1. The electric drive wheel mechanism motor M continues to be energized and works to drive multiple seats back and forth between the underground and above ground. In a multi-set rope-supporting wheel detection mechanism, when the wire rope detaches from the upper end of the groove of a corresponding rope-supporting wheel 32, the pressure exerted by the movable block 54 on the force-bearing surface of the corresponding pressure sensor W5 decreases due to the absence of the weight of the wire rope 33. Consequently, the voltage signal output from pin 3 of the corresponding pressure sensor W5 is relatively low. This voltage signal is divided by resistors R1 and R2, and the current is limited by resistor R3. The voltage at the base of the corresponding transistor T1 is lower than the base starting voltage of transistor T1, causing transistor T1 to cut off. Its collector no longer outputs a low level to the negative power input terminal of the corresponding relay J2. The corresponding relay J2 is de-energized and no longer engages, closing its control power input terminal and normally closed contact. Therefore, the relay J2 of the corresponding set of rope-supporting wheel detection mechanisms... The 12V power output from the closed contact terminal will be stepped down and current limited by resistor R4 to trigger the control electrode of the thyristor VS. The thyristor VS will then conduct, and the cathode output power will enter the positive power input terminal of relay J3 (at the same time, the alarm B will be energized and emit a loud alarm sound to remind the staff that the wire rope has come loose from one or more of the rope pulleys and to pay attention to safety). The relay J3 will be energized and its control power input terminal and normally closed contact terminal will be opened. In this way, even if someone is sitting on the seat, the 380V power will no longer enter the three power input terminals of the motor M of the electric drive wheel mechanism of the overhead personnel carrier. The motor M of the electric drive wheel mechanism will no longer continue to drive multiple seats to work (after the power switch D2 is turned off, the thyristor VS will stop conducting, and after the wire rope is reset, the equipment can work normally again).Through the above, the present invention can monitor in real time whether multiple rope-supporting wheels are providing good support for the wire rope. When the wire rope comes off any of the rope-supporting wheels, the control circuit can disconnect the power supply to the electric drive wheel mechanism in time and sound an alarm to alert the staff of the cause of the malfunction. This can achieve a good safety effect and reduce the probability of safety accidents for the staff.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An overhead man car control device for a mine haulage system, characterized in that, It includes a personnel detection mechanism, a receiving circuit, a rope wheel detection mechanism, and a control circuit; multiple sets of the personnel detection mechanism and the rope wheel detection mechanism are included; each personnel detection mechanism includes a battery, a photoelectric switch, a wireless transmitting circuit module, a time module, a housing, and a magnet. The upper end of the housing and the magnet have openings. The lower end of the magnet is fixedly installed on the upper end of the housing. The battery, photoelectric switch, wireless transmitting circuit module, and time module are installed inside the housing. The seat has an opening. The housing of each personnel detection mechanism is magnetically attached to the lower end of the seat. The power output terminal of the photoelectric switch and the power input terminal of the time module are connected by wires, and the power output terminal of the time module and the power input terminal of the wireless transmitting circuit module are also connected by wires. The rope wheel detection mechanism includes a pressure sensor... The system includes a sensor, a detection circuit, and a guide seat. A limit plate is fixedly installed at the front end of the guide seat, and a movable block is slidably installed inside the limit plate. The pressure sensor is fixedly installed at the lower end of the guide seat, and a shaft is fixedly installed at the front end of the movable block. The front end of the shaft is rotatably mounted together with the rope-supporting wheel. The rear outer sides of the guide seats of multiple sets of rope-supporting wheel detection mechanisms are respectively fixedly installed at multiple rope-supporting wheel installation positions on the aerial vehicle. The detection circuit and control circuit of the multiple sets of rope-supporting wheel detection mechanisms are installed in an electrical control box. The signal output terminal of the detection circuit of the multiple sets of rope-supporting wheel detection mechanisms and the signal input terminal of the control circuit are connected by wires. The control signal input terminal of the receiving circuit and the control power output terminal of the control circuit are connected by wires. The control power output terminal of the receiving circuit and the power input terminal of the electric drive wheel mechanism of the aerial vehicle are connected by wires.

2. The mine haulage system mantrip control device of claim 1, wherein, The photoelectric switch's probe and magnet, the opening at the top of the housing, and the seat opening are all on the same vertical plane.

3. The mine haulage system mantrip control apparatus of claim 1, wherein, Two contacts under one of the wireless signal transmission buttons in the wireless transmission circuit module are connected together by a wire.

4. The mine haulage system mantrip control apparatus of claim 1, wherein, The lower end of the movable block contacts the upper end of the pressure sensor's force-bearing surface, and the steel wire rope of the overhead personnel carrier is located in the groove at the upper end of the rope-supporting wheel.

5. The mine haulage system mantrip control apparatus of claim 1, wherein, The receiving circuit includes a wireless receiving circuit module and a relay that are electrically connected, with one of the power output terminals of the wireless receiving circuit module connected to the power input terminal of the relay.

6. The control device for overhead personnel carriers in a mine transportation system according to claim 1, characterized in that, The detection circuit of the rope-supporting wheel detection mechanism includes a resistor, a transistor, and a relay connected electrically, and is connected to a pressure sensor via wires. The positive power input terminal of the pressure sensor is connected to the positive power input terminal of the relay and the control power input terminal. The negative power input terminal of the pressure sensor is connected to one end of the first resistor and the emitter of the transistor. The signal output terminal of the pressure sensor is connected to one end of the second resistor. The other end of the second resistor is connected to one end of the third resistor and the other end of the first resistor. The other end of the third resistor is connected to the base of the transistor. The collector of the transistor is connected to the negative power input terminal of the relay.

7. The mine haulage system mantrip control apparatus of claim 1, wherein, The control circuit includes a thyristor, a resistor, and a relay that are electrically connected. The control electrode of the thyristor is connected to one end of the resistor, the cathode of the thyristor is connected to the positive power input terminal of the relay and the buzzer, and the negative power input terminal of the buzzer is connected to the negative power input terminal of the relay.

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