An electric wheel chock capable of automatically collecting wheel chock time

Abstract

An electric wheel chock capable of automatically collecting wheel chock time. It includes a wheel chock body, a control system, casters and a deicing liquid release device; the wheel chock body is a hollow triangular prism, and the surfaces of the front baffle and the rear baffle are provided with anti-skid rubber strips; the control system includes a stress sensor, an RFID signal transceiver, a controller, a motor, a power supply and an electric control valve; the deicing liquid release device includes a liquid storage tank, a drainage pipeline and a nozzle. Effects of the present invention: the anti-skid rubber strip can fit tightly with the wheel after the electric wheel chock is subjected to force, and the force is scientific and reasonable; the fully automatic process of applying and removing the wheel chock makes the recorded wheel chock time more accurate, avoiding the deviation caused by manual recording; the stress sensor can make the electric wheel chock block the wheel to a suitable threshold, which is safe and controllable; in icy and snowy weather, the electric wheel chock can release deicing liquid to clear the snow on the pavement during operation, which can effectively reduce the task response time while reducing the labor intensity of the maintenance personnel, and improve the efficiency of airport flight support operations.

Description

Technical Field

[0001] The invention belongs to the technical field of aircraft ground equipment, and in particular relates to an electric wheel chock capable of automatically collecting wheel chock time. Background Art

[0002] Under normal circumstances, when the aircraft is parked, flight support and maintenance are carried out, wheel chocks need to be placed in front and behind the aircraft wheels to prevent the aircraft from moving, which would affect maintenance operations or cause damage due to the movement of the aircraft. Traditional aircraft wheel chocks have limited stopping power and can only be used when the aircraft is parked. They are easy to damage the ground and difficult to remove. Moreover, since they need to be placed manually by maintenance personnel, there is a possibility of missing, late or no chocks, which creates a safety hazard. In addition, the use of traditional wheel chocks is limited in ice and snow conditions. With the changes in airport maintenance needs, in order to ensure that the wheel chocks can be in place in advance when the aircraft is in a dynamic state, new requirements are put forward for aircraft wheel chocks. The new wheel chocks must not only meet the normal blocking function of the aircraft, but also accurately send the time for the upper and lower wheel chocks, and can be used normally in ice and snow conditions.

[0003] The traditional wheel chocks used in the past mainly have the following problems:

[0004] 1) The arresting effect is poor and is not suitable for arresting aircraft in a sliding state;

[0005] 2) After use, the wheel chocks are easily squeezed between the aircraft and the ground. During the removal process, the wheel chocks are easily ejected due to the force, which poses a danger to the staff.

[0006] 3) Manual placement of wheel chocks is not only inefficient, but also manually reporting wheel chock time will cause certain deviations.

[0007] 4) In case of icy and snowy weather, the airport ground will be frozen, affecting the normal use of the wheel chocks. Summary of the invention

[0008] In order to solve the above problems, the purpose of the present invention is to provide an electric wheel chock that can automatically collect wheel chock time, aiming to be able to block the wheel in time while automatically, promptly and accurately recording the wheel chock time, and can be used normally even in icy and snowy weather.

[0009] In order to achieve the above-mentioned purpose, the electric wheel chock capable of automatically collecting wheel chock time provided by the present invention comprises a wheel chock body, a control system, casters and a deicing liquid release device; wherein the wheel chock body is composed of a front baffle, a rear baffle, a bottom plate and two side plates, and the side plates are hollow triangular prisms of equilateral triangles, the surfaces of the front baffle and the rear baffle are provided with anti-skid rubber strips, a plurality of drainage holes are distributed on the bottom plate, and a caster is respectively installed at the four corners of the bottom plate; the control system comprises a stress sensor, an RFID signal transceiver, a controller, a motor, a power supply and an electric control valve; the stress sensor is installed on the anti-skid rubber strips The RFID signal transceiver, the controller, the motor, the power supply and the electric control valve are arranged inside the wheel chock body, and the controller is electrically connected to the stress sensor, the RFID signal transceiver, the motor and the electric control valve respectively; the output end of the motor is connected to the central axis of the caster through a transmission mechanism; the power supply supplies power to each electrical component in the electric wheel chock; the deicing liquid release device is arranged inside the wheel chock body, including a liquid storage tank, a drainage pipeline and a nozzle; the two ends of the drainage pipeline are respectively connected to the liquid storage tank and the nozzle, and the nozzle is located above the drainage hole; the electric control valve is installed on the drainage pipeline.

[0010] The controller adopts STM32 single chip microcomputer.

[0011] The power source adopts a storage battery capable of resonant wireless charging.

[0012] A plurality of horizontally arranged anti-skid rubber strips are installed at intervals on the surfaces of the front baffle and the rear baffle to play a role in buffering and increasing friction.

[0013] The RFID signal transceiver is wirelessly connected to the base station via a 4G network and is capable of receiving information including aircraft position information, flight number and aircraft model in a pre-set RFID tag on the apron.

[0014] The electric wheel chock capable of automatically collecting wheel chock time provided by the present invention has the following beneficial effects:

[0015] 1) The anti-slip rubber strip can fit tightly with the wheel after the electric wheel chock is subjected to force, and the force is scientific and reasonable;

[0016] 2) The fully automatic process of blocking and unblocking makes the recorded blocking time more accurate, avoiding the deviation caused by manual recording;

[0017] 3) The stress sensor can make the electric wheel block block the wheel to reach a suitable threshold, and the whole process is safe and controllable;

[0018] 4) In icy and snowy weather, the electric wheel chocks can release de-icing fluid during operation to promptly and effectively remove snow from the pavement. This can reduce the labor intensity of maintenance personnel while effectively reducing task response time and improving the efficiency of airport flight support operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the overall structure of the electric wheel chock capable of automatically collecting wheel chock time provided by the present invention;

[0020] Figure 2 A block diagram of the electric control components in the electric wheel chock capable of automatically collecting wheel chock time provided by the present invention;

[0021] Figure 3 A schematic diagram of the electric wheel block signal transmission process capable of automatically collecting wheel block time provided by the present invention. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 , Figure 2 As shown, the electric wheel chock capable of automatically collecting wheel chock time provided by the present invention comprises a wheel chock body, a control system, a caster 5 and a deicing liquid release device 14; wherein the wheel chock body is composed of a front baffle 1, a rear baffle 2, a bottom plate 3 and two side plates 4, and the side plates 4 are hollow triangular prisms in the form of equilateral triangles, and the surfaces of the front baffle 1 and the rear baffle 2 are provided with anti-skid rubber strips 6, a plurality of drainage holes 8 are distributed on the bottom plate 3, and a caster 5 is respectively installed at the four corners of the bottom plate 3; the control system comprises a stress sensor 7, an RFID signal transceiver 9, a controller 10, a motor 11, a power supply 12 and an electric control valve 13; the stress sensor 7 is installed on the surface of the anti-skid rubber strip 6 The wheel chock body is a wheel chock having a plurality of surfaces; an RFID signal transceiver 9, a controller 10, a motor 11, a power supply 12 and an electric control valve 13 are arranged inside the wheel chock body, and the controller 10 is electrically connected to the stress sensor 7, the RFID signal transceiver 9, the motor 11 and the electric control valve 13 respectively; the output end of the motor 11 is connected to the central axis of the caster 5 through a transmission mechanism; the power supply 12 supplies power to various electrical components in the electric wheel chock; a deicing liquid release device 14 is arranged inside the wheel chock body, and includes a liquid storage tank, a drainage pipeline and a nozzle; the two ends of the drainage pipeline are respectively connected to the liquid storage tank and the nozzle, and the nozzle is located above the drainage hole 8; the electric control valve 13 is installed on the drainage pipeline.

[0024] The controller 10 adopts an STM32 single chip microcomputer.

[0025] The power source 12 is a storage battery capable of resonant wireless charging.

[0026] A plurality of horizontally arranged anti-skid rubber strips 6 are installed at intervals on the surfaces of the front baffle 1 and the rear baffle 2 to play a role in buffering and increasing friction.

[0027] The RFID signal transceiver 9 is wirelessly connected to the base station via the 4G network, and is capable of receiving information including the aircraft position information, flight number and aircraft model in the RFID tag pre-set on the apron.

[0028] Now combined Figure 3 The working principle of the electric wheel chock capable of automatically collecting wheel chock time provided by the present invention is described as follows:

[0029] 1) When the aircraft enters the parking position and the wheels reach the wheel stop line, the RFID tag pre-installed on the apron will send out information including the parking position information, flight number and aircraft model. The RFID signal transceiver 9 on the electric wheel chock located in the waiting area near the apron will receive the above information and transmit it to the nearby base station through the 4G network for processing; the base station will then transmit the information to the airport's cloud server, which will calculate the optimal electric wheel chock that can perform the task at the designated location based on factors such as distance and idle state, and then transmit the information to the corresponding base station, which will then issue an instruction to the optimal electric wheel chock. The RFID signal transceiver 9 on the optimal electric wheel chock receives the instruction from the base station and transmits it to the controller 10; the controller 10 sends a control signal to the motor 11, and the motor 11 starts to rotate, thereby driving the caster 5 to move to the designated position to perform the task; during this process, the base station will monitor and control the position of the optimal electric wheel chock in real time until the optimal electric wheel chock reaches the designated position, and the controller 10 records the wheel chock time.

[0030] 2) When the optimal electric wheel chock enters the specified position, the front baffle 1 and the rear baffle 2 thereon will contact the machine wheel. At this time, the stress sensor 7 on its surface will detect the stress applied by the machine wheel to the optimal electric wheel chock, and then transmit it to the controller 10. The controller 10 can control the motor 11 according to the size of the stress on the front baffle 1 and the rear baffle 2, thereby fine-tuning the position of the caster 5 until the detection values ​​of the stress sensors 7 on the front baffle 1 and the rear baffle 2 are the same, and then turn off the motor 11.

[0031] 3) When the aircraft is ready to slide out of the parking position, the cloud server first receives the request and sends a signal to the base station. The base station then issues an instruction to the optimal electric wheel chock in the corresponding parking position. The RFID signal transceiver 9 in the optimal electric wheel chock receives the instruction from the base station and transmits it to the controller 10; the controller 10 sends a control signal to the motor 11, and the motor 11 starts to rotate, thereby driving the caster 5 to move away from the specified position. When the detection value of the stress sensor 7 is 0, the controller 10 records the wheel chock removal time and transmits it back to the cloud server through the RFID signal transceiver 9 through the base station in time for recording. Finally, the optimal electric wheel chock returns to the waiting area to wait for the next task.

[0032] 4) In snowy weather, the base station receives an early warning based on the weather conditions, and the cloud server allocates the electric wheel chocks through the optimization algorithm. The controller 10 inside the optimal electric wheel chock that receives the task will open the electronically controlled valve 13. In this way, during the execution of the task, the deicing liquid inside the storage tank on the deicing liquid release device 14 will rely on gravity to spray out through the drainage pipe and the nozzle through the drainage hole 8 on the bottom plate 3, thereby melting the ice and snow on the apron, so as to complete the task on time.

Claims

1. An electric wheel chock capable of automatically collecting wheel chock time, Features: The electric wheel chock comprises a wheel chock body, a control system, a caster (5) and a deicing liquid release device (14); wherein the wheel chock body is composed of a front baffle (1), a rear baffle (2), a bottom plate (3) and two side plates (4), and the side plates (4) are hollow triangular prisms in the form of equilateral triangles; the surfaces of the front baffle (1) and the rear baffle (2) are provided with anti-skid rubber strips (6); a plurality of drainage holes (8) are distributed on the bottom plate (3), and a caster (5) is respectively installed at the four corners of the bottom plate (3); the control system comprises a stress sensor (7), an RFID signal transceiver (9), a controller (10), a motor (11), a power supply (12) and an electric control valve (13); the stress sensor (7) is installed on the surface of the anti-skid rubber strip (6); The FID signal transceiver (9), the controller (10), the motor (11), the power supply (12) and the electric control valve (13) are arranged inside the wheel chock body, and the controller (10) is electrically connected to the stress sensor (7), the RFID signal transceiver (9), the motor (11) and the electric control valve (13) respectively; the output end of the motor (11) is connected to the central axis of the caster (5) through a transmission mechanism; the power supply (12) supplies power to each electrical component in the electric wheel chock; the deicing liquid release device (14) is arranged inside the wheel chock body, and includes a liquid storage tank, a liquid discharge pipeline and a nozzle; the two ends of the liquid discharge pipeline are respectively connected to the liquid storage tank and the nozzle, and the nozzle is located above the liquid discharge hole (8); the electric control valve (13) is installed on the liquid discharge pipeline; When the optimal electric wheel chock enters the designated position, the front baffle (1) and the rear baffle (2) on the optimal electric wheel chock will contact the wheel. At this time, the stress sensor (7) on the surface will detect the stress applied by the wheel to the optimal electric wheel chock, and then transmit it to the controller (10). The controller (10) controls the motor (11) according to the magnitude of the stress on the front baffle (1) and the rear baffle (2), thereby fine-tuning the position of the caster (5) until the detection values ​​of the stress sensors (7) on the front baffle (1) and the rear baffle (2) are the same, and then turns off the motor (11).

2. The electric wheel chock capable of automatically collecting wheel chock time according to claim 1, It is characterized in that: It is characterized in that: The controller (10) adopts an STM32 single-chip microcomputer.

3. The electric wheel chock capable of automatically collecting wheel chock time according to claim 1, It is characterized in that: It is characterized in that: The power source (12) adopts a storage battery capable of resonant wireless charging.

4. The electric wheel chock capable of automatically collecting wheel chock time according to claim 1, It is characterized in that: It is characterized in that: A plurality of horizontally arranged anti-skid rubber strips (6) are installed at intervals on the surfaces of the front baffle (1) and the rear baffle (2) to play a role in buffering and increasing friction.

5. The electric wheel chock capable of automatically collecting wheel chock time according to claim 1, It is characterized in that: It is characterized in that: The RFID signal transceiver (9) is wirelessly connected to the base station via a 4G network, and is capable of receiving information including aircraft position information, flight number and aircraft model on an RFID tag pre-set on the apron.

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