Manned platform and loader

Abstract

The utility model relates to the technical field of airfield ground equipment, concretely refers to a manned platform and loader, a manned platform, including platform frame and platform door, be equipped with door lock response anti -drop mechanism between platform door and platform frame, door lock response anti -drop mechanism includes response switch, electromagnet, response board, magnetic attraction board, be equipped with response switch and electromagnet on platform frame, be equipped with response board and magnetic attraction board on platform door, response switch cooperates with response board, magnetic attraction board and electromagnet are opposite and set up, a loader, including automobile chassis, vehicle control system and main platform, one side of main platform is equipped with above -mentioned manned platform, response switch, electromagnet all are connected with vehicle control system, be equipped with control box in platform frame, be equipped with controller in control box, control box is apart from and is provided with main platform first control switch and main platform second control switch, the utility model door lock has response, locking anti -drop, is equipped with manned space, and high security.

Description

Technical Field

[0001] This utility model relates to the field of airport ground equipment technology, specifically to a manned platform and a loader. Background Technology

[0002] Cargo loaders are widely used in major airports. Existing loaders generally include a chassis, a vehicle PLC controller, a lithium battery power unit, and a travel motor. The vehicle PLC controller controls the operation of the electric airport cargo loader. The chassis is connected to a front axle and a conveyor platform. The conveyor platform includes a main platform and a bridge platform. The main platform is equipped with a conveyor motor, chain, conveyor rollers, and a motor controller. The bridge platform is equipped with a conveyor motor, chain, conveyor rollers, and a motor controller. The main platform and the bridge platform work together to complete cargo transportation. The shortcomings of existing loaders include: First, existing loaders have an operating console on one side of the main platform. The console door lock structure is generally a slider bolt or spring pin, which can be easily opened by accident during cargo transfer, posing a significant safety hazard. Second, when using existing loaders, operators usually reach the main platform via a lift. The lift is usually vertical and steep, which puts psychological pressure on the operators and makes climbing unsafe. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a manned platform and loader with a clever structure, a sensor-activated door lock, a locking mechanism to prevent slippage, a manned space, and high safety.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A manned platform includes a platform frame and a platform door. One end of the platform door is hinged to the platform frame, and the other end is limitedly connected to the platform frame via a spring pin and a slot. The platform door is characterized by a door lock sensing anti-disengagement mechanism between it and the platform frame. This mechanism includes a sensor switch, an electromagnet, a sensing plate, and a magnetic plate. The manned platform is equipped with the sensor switch and the electromagnet, while the platform door is equipped with the sensing plate and the magnetic plate. The sensor switch and the sensing plate are configured to cooperate, and the magnetic plate and the electromagnet are configured to cooperate. The sensor switch and the electromagnet are fixedly connected to the manned platform. The electromagnet is connected to a power source via a wire. The sensing plate and the magnetic plate are fixedly connected to the platform door. This allows the sensor switch to sense the sensing plate when the spring pin is inserted into the slot, ensuring the spring pin engages with the slot. Simultaneously, the electromagnet is energized, attracting the magnetic plate and thus fixing the platform door to the platform frame, preventing accidental opening of the platform door.

[0005] The inductive switch described in this utility model is a limit switch, which is used to sense the inductive plate by inserting the spring pin of the platform door into the slot of the platform frame through the limit switch, thereby ensuring that the platform door is locked.

[0006] The magnetic plate of this utility model has a connecting hole in the middle. The magnetic plate is movably connected to the platform door through the connecting hole via a connector, so that when the electromagnet attracts the magnetic plate, the magnetic plate can be adjusted to move closer to the electromagnet with the magnetic field to achieve rapid attraction and fixation.

[0007] A loader includes a vehicle chassis, an on-board control system, and a main platform, characterized in that: a personnel platform as described above is provided on one side of the main platform, and the platform frame is fixedly connected to the main platform so that after the operator enters the personnel platform, the personnel platform rises and falls with the main platform, and the operator can reach the bridge platform through the main platform without climbing a ladder, which is highly safe.

[0008] The platform frame of this invention includes a control box, which is fixedly connected to the platform frame. The control box contains a controller, and a first main platform control switch and a second main platform control switch are spaced apart on the control box. Both the first and second main platform control switches are activated simultaneously to control the lifting and lowering of the main platform. The first main platform control switch, the second main platform control switch, a sensor switch, and an electromagnet are all connected to the controller, which is connected to the vehicle control system. By using two platform control switches, the lifting and lowering of the main platform can only be controlled by simultaneously activating both the first and second main platform control switches, thus preventing the operator from accidentally touching only one control switch during operation, which could cause the platform to lift or lower.

[0009] The control box of this utility model is fixedly equipped with an electromagnet control switch, which is connected to the controller so as to control the on and off of the electromagnet through the electromagnet control switch.

[0010] The control box of this utility model is equipped with an emergency stop switch, which is connected to the controller so that when a special situation occurs, pressing the emergency stop switch can stop all operations of the loader.

[0011] This utility model, due to the above-mentioned structure, has the advantages of ingenious structure, sensor-activated door lock, anti-loosening locking, provision of a space for carrying people, and high safety. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of the manned platform of this utility model.

[0013] Figure 2 This is an enlarged cross-sectional view of the magnetic suction plate in this utility model.

[0014] Figure 3 This is a structural schematic diagram of the loader of this utility model.

[0015] Figure 4This is an enlarged schematic diagram of the connection between the manned platform and the main platform in this utility model.

[0016] Reference numerals: 1. Platform frame; 2. Platform door; 3. Spring pin; 4. Door lock sensor anti-detachment mechanism; 5. Sensor switch; 6. Electromagnet; 7. Sensor plate; 8. Magnetic suction plate; 9. Main platform; 10. Passenger platform; 11. Control box; 12. Main platform first control switch; 13. Main platform second control switch; 14. Electromagnet control switch; 15. Connection hole; 16. Emergency stop switch; 17. Vehicle chassis. Detailed Implementation

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0018] A manned platform 10 includes a platform frame 1 and a platform door 2. One end of the platform door 2 is hinged to the platform frame 1, and the other end is limitedly connected to the platform frame 1 via a spring pin 3 and a slot. The platform door 2 is characterized by having a door lock sensing anti-detachment mechanism 4 between it and the platform frame 1. The door lock sensing anti-detachment mechanism 4 includes a sensor switch 5, an electromagnet 6, a sensing plate 7, and a magnetic suction plate 8. The manned platform 1 is equipped with the sensor switch 5 and the electromagnet 6, and the platform door 2 is equipped with the sensing plate 7 and the magnetic suction plate 8. The sensor switch 5 and the electromagnet 6 are connected to the platform frame 1. The sensor plate 7 is configured to cooperate with the magnetic suction plate 8 and the electromagnet 6. The induction switch 5 and the electromagnet 6 are respectively fixedly connected to the manned platform 1. The electromagnet 6 is connected to the power supply via a wire. The induction plate 7 and the magnetic suction plate 8 are respectively fixedly connected to the platform door 2. This is so that when the spring pin 3 is inserted into the slot, the induction switch 5 senses the induction plate 7, ensuring that the spring pin 3 is engaged with the slot. At the same time, the electromagnet 6 is energized, attracting the magnetic suction plate 8, thereby fixing the platform door 2 to the platform frame 1 and preventing the platform door 2 from being opened accidentally.

[0019] The inductive switch 5 described in this utility model is a limit switch, which is used to sense the inductive plate 7 by inserting the spring pin 3 of the limit switch platform door 2 into the slot of the platform frame 1, thereby ensuring that the platform door 2 is locked.

[0020] The magnetic plate 8 of this utility model has a connecting hole 15 in the middle. The magnetic plate 8 is movably connected to the platform door 2 through the connecting hole 15 via a connector, so that when the electromagnet attracts the magnetic plate, the magnetic plate can be adjusted to move closer to the electromagnet with the magnetic field to achieve rapid attraction and fixation.

[0021] A loader includes a vehicle chassis 17, an on-board control system, and a main platform 9. The main platform 9 is characterized in that a manned platform 10 is provided on one side, and the platform frame 1 is fixedly connected to the main platform 9 so that after the operator enters the manned platform 10, the manned platform 10 rises and falls with the main platform 9. The operator can reach the bridge platform through the main platform 9 without climbing a ladder, which is highly safe.

[0022] The platform frame 1 of this utility model is provided with a control box 11, which is fixedly connected to the platform frame 1. The control box 11 is provided with a controller. The control box 11 is provided with a main platform first control switch 12 and a main platform second control switch 13 at intervals. The main platform first control switch 12, the main platform second control switch 13, the induction switch 5, and the electromagnet 6 are all connected to the controller. The controller is connected to the vehicle control system. By setting two platform control switches, the main platform 9 can be raised and lowered only when the main platform first control switch 12 and the main platform second control switch 13 are turned on at the same time. This avoids the phenomenon that the operator accidentally touches the platform control switches one by one during operation, which would cause the platform to rise and fall.

[0023] The control box 11 of this utility model is fixedly provided with an electromagnet control switch 14, which is connected to the controller so as to control the on and off of the electromagnet through the electromagnet control switch.

[0024] The control box 11 of this utility model is equipped with an emergency stop switch 16, which is connected to the controller so that when a special situation occurs, pressing the emergency stop switch can stop all operations of the loader.

[0025] The loader is a conventional loader, and the on-board control system is such as a PLC control system. This invention installs a personnel platform 10 on one side of the main platform 9 of a conventional loader, as shown in the attached diagram. Figure 1 - Appendix Figure 4 The manned platform 10 includes a platform frame 1 and a platform door 2. A controller, such as a PLC control system, is connected to the vehicle control system. One end of the platform door 2 is hinged to the platform frame 1, and the other end is equipped with a spring pin 3. A corresponding slot is provided on the platform frame 1. The spring pin 3 engages with the slot to lock the platform door 2. The spring pin 3 uses a conventional spring pin, but in actual use, the platform door may not be closed tightly or may be accidentally opened during operation, leading to safety hazards. This invention provides electromagnets 6 and proximity switches on both sides of the slot in the platform door frame 1. The proximity switch senses the sensing plate 7 on the platform door 2, and the electromagnet 6 attracts the magnetic plate 8, as shown in the attached diagram. Figure 1 and attached Figure 2 The magnetic plate 8 has a connecting hole in the middle, and the connector is a countersunk screw. The connecting hole matches the shape of the countersunk screw head. The countersunk screw passes through the connecting hole and is threadedly connected to the connecting plate fixed on the platform door 2. There can be a small gap between the magnetic plate and the connecting plate to facilitate the magnetic plate moving towards the electromagnet under the influence of the electromagnet's magnetic field. At the same time, the magnetic plate can rotate relative to the countersunk screw, so that the magnetic plate can automatically adjust its state to fit more tightly against the electromagnet after the electromagnet is energized. During operation, when the main platform 9 is not raised (i.e., at its lowest position), the operator opens the spring latch 3 of the platform door 2, enters the platform frame 1, and then closes the platform door 2. The spring latch 3 is then inserted into the slot and secured. The proximity switch senses the sensor plate 7 and transmits a signal to the controller. The operator then activates the electromagnet control switch 14, energizing the electromagnet 6. The electromagnet 6 attracts the magnetic plate 8, which is made of metal, such as iron. After the electromagnet 6 attracts the magnetic plate 8, the platform door 2 is tightly connected to the platform frame 1. This ensures that even if the spring latch 3 malfunctions during operation, the platform door 2 will not open. The operator can control the main platform to rise by simultaneously pressing the first control switch 12 and the second control switch 13. The main platform will not move if either switch is pressed alone to prevent accidental activation of either switch. When the main platform reaches its designated position, i.e., when it is level with the bridge platform, it stops. Then, the operator can press the electromagnet control switch 14, de-energizing the electromagnet 6. At this point, pulling the spring pin 3 opens the platform door 3, allowing the operator to exit from the platform frame 1, enter the main platform, and then access the bridge platform without needing to climb the elevator. Entering the bridge platform ensures high safety. After completing the operation, the operator moves from the bridge platform to the main platform 9 and then to the platform frame 1. The platform door 2 is closed, and the spring pin 3 is inserted into the slot for fixation. The proximity switch senses the sensor plate 7, transmitting a signal to the controller. The operator then activates the electromagnet control switch 14, energizing the electromagnet 6. The electromagnet 6 attracts the magnetic plate 8, securing the platform door 2. Simultaneously, the main platform's first control switch 12 and second control switch 13 are activated, causing the main platform 9 to descend. Once the main platform 9 is in position, the operator activates the electromagnet control switch 14, de-energizing the electromagnet 6 and opening the platform door 3. The operator can then exit from the platform frame 1. When... In special circumstances where the main platform cannot be lowered, the emergency stop switch 16 can be activated. The emergency stop switch is controlled by the vehicle control system. By pressing the emergency stop switch 16, the vehicle control system controls the loader to stop moving, lifting, and transporting goods, which facilitates maintenance personnel to check the loader's faults in a timely manner. The operation is simple. The operator is placed inside the platform frame 1. The platform door 2 is locked to the platform frame 1 by a sensor. After locking, the platform door 2 is safely locked by the electromagnet 6 and the magnetic suction plate 8, reducing safety hazards. At the same time, by setting up a personnel platform 10 on one side of the main platform 9, the personnel platform 10 rises and falls with the main platform 9, which improves the safety of the operator.

[0026] This utility model, due to the above-mentioned structure, has the advantages of ingenious structure, sensor-activated door lock, anti-loosening locking, provision of a space for carrying people, and high safety.

Claims

1. A manned platform (10), comprising a platform frame (1) and a platform gate (2), characterized in that: A door lock sensing anti-detachment mechanism (4) is provided between the platform door (2) and the platform frame (1). The door lock sensing anti-detachment mechanism (4) includes a sensing switch (5), an electromagnet (6), a sensing plate (7), and a magnetic suction plate (8). The platform frame (1) is provided with a sensing switch (5) and an electromagnet (6). The platform door (2) is provided with a sensing plate (7) and a magnetic suction plate (8). The sensing switch (5) is configured to cooperate with the sensing plate (7). The magnetic suction plate (8) is configured to cooperate with the electromagnet (6). The sensing switch (5) and the electromagnet (6) are respectively fixedly connected to the platform frame (1). The sensing plate (7) and the magnetic suction plate (8) are respectively fixedly connected to the platform door (2).

2. A manned platform according to claim 1, characterized in that: The inductive switch (5) is a limit switch.

3. A manned platform according to claim 1 or 2, characterized in that: The magnetic plate (8) has a connecting hole (15) in the middle. The magnetic plate (8) is movably connected to the platform door (2) through the connecting hole (15) via a connector.

4. A loader, comprising a vehicle chassis (17), an onboard control system, and a main platform (9), characterized in that: The main platform (9) is provided with a manned platform (10) as described in claim 1, 2 or 3 on one side, and the platform frame (1) is fixedly connected to the main platform (9).

5. A loader according to claim 4, characterized in that: The platform frame (1) is provided with a control box (11), which is fixedly connected to the platform frame (1). The control box (11) is provided with a controller. The control box (11) is provided with a main platform first control switch (12) and a main platform second control switch (13) spaced apart. The main platform first control switch (12) and the main platform second control switch (13) are activated simultaneously to control the lifting and lowering of the main platform (9). The main platform first control switch (12), the main platform second control switch (13), the induction switch (5), and the electromagnet (6) are all connected to the controller. The controller is connected to the vehicle control system.

6. A loader according to claim 5, characterized in that: An electromagnet control switch (14) is fixedly installed on the control box (11), and the electromagnet control switch (14) is connected to the controller.

7. A loader according to claim 5 or 6, characterized in that: The control box (11) is equipped with an emergency stop switch (16), which is connected to the controller.

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