Intelligent draw bar

Abstract

The invention relates to the field of aircraft traction, in particular to an intelligent traction rod which comprises a rod body, a mop head assembly, a solid tire assembly, a mechanical lifting assembly, a dragging handrail and a supporting wheel, the mop head assembly, the solid tire assembly, the mechanical lifting assembly, the dragging handrail and the supporting wheel are all installed on the rod body, and a control box assembly and a traction assembly are further installed on the rod body. The traction assembly comprises a traction ring, a pipe body, a tension and pressure sensor and a junction box. The control box assembly comprises a main frame, a controller, a battery pack and a tension and pressure transmitter. According to the product, data support can be provided for maintenance of the dragged equipment by analyzing and researching the dragging tension and pressure data of the equipment. The device is simple in mechanical structure, the traction assembly at the front end is universal, and the device can be connected with various traction devices only by changing the size of the flange. The intelligent traction rod is flexible and quick to operate, a required electrical control system is simple and reliable, the maintenance and management cost of a product is reduced, and the traction safety is improved.

Description

Technical Field

[0001] The present invention relates to the field of aircraft towing, and specifically to an intelligent towing bar. Background Art

[0002] With the progress of technology and the improvement of people's living standards, more and more people will travel. To travel, they need to take some means of transportation, and airplanes are a common means of transportation.

[0003] When an airplane is being transferred at an airport, the airplane's engine is not started for movement. Instead, both ends of a towing bar are respectively connected to a towing vehicle and the airplane, and then the movement of the towing vehicle is used to achieve the movement of the airplane on the ground.

[0004] Currently, most towing bars are non-powered towing bars, mainly composed of a towing head assembly, a support plate, a rod body, a solid tire assembly, a wheel frame assembly, a mechanical lifting assembly, a towing handrail, rear support wheels, a towing ring assembly, a towing ring, a fixed clamp, and a handle. However, the existing non-powered towing bars have the following problems: When towing equipment (such as an airplane) with a non-powered towing bar, it is impossible to effectively detect whether the towing force is too large, and whether the towing force during turning will cause damage to the towed equipment, and data analysis and early warning cannot be performed. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An intelligent towing rod, comprising a rod body, a towing head assembly, a solid tire assembly, a mechanical lifting assembly, a towing handrail and a supporting wheel. The towing head assembly, the solid tire assembly, the mechanical lifting assembly, the towing handrail and the supporting wheel are all installed on the rod body. A control box assembly and a towing assembly are also installed on the rod body. The towing assembly includes a towing ring, a pipe body, a tension and compression sensor and a junction box. The tension and compression sensor and the junction box are both installed in the pipe body, and the tension and compression sensor is electrically connected to the control box assembly through the junction box. The front end and the rear end of the tension and compression sensor are respectively connected to a front connecting shaft and a rear connecting shaft. A front retaining ring is installed on the rear connecting shaft. A rear retaining ring is installed on the rod body, and a shock pad is installed between the front retaining ring and the rear retaining ring. The towing ring and the front connecting shaft are of an integrated structure. First mounting flanges are respectively installed at both ends of the pipe body, and a second mounting flange for connecting the rod body is installed. A limiting block for restricting the rotation of the front connecting shaft is installed on the first mounting flange. The control box assembly includes a main frame, a controller, a battery pack and a tension and compression transmitter. The controller, the battery pack and the tension and compression transmitter are all installed in the main frame. A vibration sensor is installed in the controller. The battery pack powers the entire device. The tension and compression transmitter converts the pressure signal of the tension and compression sensor into a standard signal and transmits it to the controller through RS485 / RS232 or an analog signal. The controller collects, processes and sends the pressure signal of the tension and compression transmitter. When the towing ring is dragged, the limiting block can prevent the separation of the tension and compression sensor and the front connecting shaft caused by the rotation of the front connecting shaft. The working process of this product is as follows: After the operator connects the towing ring to the towing vehicle and drags this product to the position area of the device to be towed, after using the towing head assembly to connect to the device to be towed, the mechanical lifting assembly adjusts this product well, starts the towing vehicle, and starts towing the device. At this time, the towing ring and the front connecting shaft start to pull and compress the tension and compression sensor, and the tension and compression sensor drives the rear connecting shaft, so that it squeezes the shock pad, and then drives the entire device forward. During the dragging process, because the vibration sensor installed in the controller senses the work, the controller starts to read and calculate the data that the tension and compression sensor transmits to the tension and compression transmitter through the junction box and is converted into a standard signal, and then transmits it to the server, and the server feeds back the information to the MRO platform and the handheld terminal.

[0007] As a further solution of the present invention: A support plate, a wheel frame assembly, a fixed clamp and a handle are also installed on the rod body. The support plate is used for support. The wheel frame assembly realizes the connection between the solid tire assembly and the rod body and realizes the connection between the mechanical lifting assembly and the rod body. The fixed clamp is convenient for connecting other devices subsequently.

[0008] As a further solution of the present invention: The towing ring and the front connecting shaft are obtained by die-casting with an integrated process, and the integrated structure is more firm.

[0009] As a further solution of the present invention: The first mounting flange is connected to the pipe body by screws and nuts, and the two are not easy to fall off, and the connection firmness is good.

[0010] As a further solution of the present invention: The tensile and compressive force sensor is connected to the front connecting shaft and the rear connecting shaft respectively by means of threads, and a hexagonal nut is used for fastening to prevent the loosening of the hexagonal nut caused by reverse rotation.

[0011] As a further solution of the present invention: The front retaining ring is fixed to the rear connecting shaft by a cylindrical pin, with good connection firmness, and the cylindrical pin can also limit the shock pad.

[0012] As a further solution of the present invention: The rear retaining ring is connected to the rod body by welding, strengthening the limiting effect on the shock pad.

[0013] As a further solution of the present invention: A cable is also installed inside the pipe body, and the junction box is connected to the tensile and compressive force transmitter through the cable, which can quickly transmit the pressure signal into the tensile and compressive force transmitter.

[0014] As a further solution of the present invention: The main frame includes a top plate, a frame and side plates. The top plate is connected to the lower half of the frame through hinges, hooks and a door lock assembly, and can be opened or closed by flipping. The door lock assembly can close the main frame to ensure that the components inside the main frame will not be damaged or taken away.

[0015] As a further solution of the present invention: A first solar panel is installed on the top plate, and a second solar panel is installed on the side plate. The first solar panel and the second solar panel can convert solar energy into electrical energy, and then charge the battery pack through a controller.

[0016] As a further solution of the present invention: A GPS locator is also installed inside the pipe body. The GPS locator is electrically connected to the controller and can send the position information of the device.

[0017] As a further solution of the present invention: An antenna is also installed on the frame for wireless signal transmission and sending and receiving of GPS signals. Heat dissipation holes are opened on the frame, which can help the control box assembly dissipate heat.

[0018] As a further solution of the present invention: A power switch, a fuse tube and a buzzer are installed inside the frame. The power switch, the fuse tube and the buzzer are all electrically connected to the controller. The power switch controls the power supply of the whole device, the fuse tube is used for overcurrent protection of the electrical system, and the buzzer gives an audible and visual alarm when the device fails.

[0019] As a further solution of the present invention: The battery pack adopts a lithium iron phosphate battery pack, with mature technology, easy to obtain in the market and good use effect.

[0020] As a further solution of the present invention: The battery pack is installed inside the main frame through a star-shaped handle and a battery fixing piece, with good connection firmness and the battery pack is not easy to fall off.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] This product can provide data support for the maintenance of the towed equipment by analyzing the towing pulling and pressing force data of the equipment. The mechanical structure of the present invention is simple. The front traction component is a general type, and only by changing the flange size can it be connected to various traction devices. This intelligent traction rod is flexible and fast in operation, and the required electrical control system is simple and reliable, reducing the maintenance and management cost of the product and improving the safety of towing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a perspective view of the intelligent traction rod in the embodiment of the present invention.

[0024] Figure 2 It is an enlarged view of part A of the intelligent traction rod in the embodiment of the present invention.

[0025] Figure 3 It is a first external perspective structural schematic diagram of the control box assembly in the embodiment of the present invention.

[0026] Figure 4 It is a second external perspective structural schematic diagram of the control box assembly in the embodiment of the present invention.

[0027] Figure 5 It is a rear view of the external of the control box assembly in the embodiment of the present invention.

[0028] Figure 6 It is an internal perspective structural schematic diagram of the control box assembly in the embodiment of the present invention.

[0029] Figure 7 It is a top view of the inside of the control box assembly in the embodiment of the present invention.

[0030] Figure 8 It is a perspective structural schematic diagram of the traction assembly in the embodiment of the present invention.

[0031] Figure 9 It is a half-sectional view of the traction assembly in the embodiment of the present invention.

[0032] Figure 10 It is a structural schematic diagram of an existing non-powered traction rod.

[0033] In the figure: 1 - control box assembly, 2 - traction assembly, 3 - half component, 4 - fastening component, 10 - top plate, 11 - first solar panel, 12 - hinge, 13 - frame, 14 - antenna, 15 - second solar panel, 16 - side plate, 17 - hook, 18 - door lock assembly, 19 - power switch, 20 - fuse, 21 - buzzer, 22 - heat dissipation hole, 23 - controller, 24 - battery pack, 25 - tension and compression transmitter, 26 - star handle, 27 - battery fixing part, 30 - traction ring, 31 - screw, 32 - first mounting flange, 33 - nut, 34 - pipe body, 35 - second mounting flange, 36 - shock pad, 37 - front retaining ring, 38 - tension and compression sensor, 39 - front connecting shaft, 40 - rear connecting shaft, 41 - limit block, 42 - cylindrical pin, 43 - hexagon nut, 44 - rear retaining ring, 45 - junction box, 46 - cable, 51 - mop head assembly, 52 - support plate, 53 - rod body, 54 - solid tire assembly, 55 - wheel frame assembly, 56 - mechanical lifting assembly, 57 - towing armrest, 58 - support wheel, 59 - traction ring assembly, 60 - original traction ring, 61 - fixed clamp, 62 - handle. Detailed implementation mode

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] This product replaces the traction ring assembly and traction ring in the existing non-powered traction rod with a traction assembly, and then fixes the control box assembly on the rod body by using a half component and a fastening component, so as to display the equipment status information and position information of the non-powered traction rod on the MRO platform and the handheld terminal device of front-line employees through GPS and wireless data communication, and can also collect the towing tension and compression values and give status warnings.

[0036] The following will describe the specific implementation of the present invention in detail with reference to specific embodiments.

[0037] Example 1, please refer to Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9, a smart towing rod, comprising a rod body 53, a towing head assembly 51, a solid tire assembly 54, a mechanical lifting assembly 56, a towing handrail 57 and a support wheel 58. The towing head assembly 51, the solid tire assembly 54, the mechanical lifting assembly 56, the towing handrail 57 and the support wheel 58 are all installed on the rod body 53. A control box assembly 1 and a towing assembly 2 are also installed on the rod body 53. The towing assembly 2 includes a towing ring 30, a pipe body 34, a tensile and compressive force sensor 38 and a junction box 45. The tensile and compressive force sensor 38 and the junction box 45 are both installed in the pipe body 34, and the tensile and compressive force sensor 38 is electrically connected to the control box assembly 1 through the junction box 45. The front end and the rear end of the tensile and compressive force sensor 38 are respectively connected to a front connecting shaft 39 and a rear connecting shaft 40. A front retaining ring 37 is installed on the rear connecting shaft 40. A rear retaining ring 44 is installed on the rod body 53, and a shock pad 36 is installed between the front retaining ring 37 and the rear retaining ring 44. The towing ring 30 and the front connecting shaft 39 are of an integral structure. Both ends of the pipe body 34 are respectively installed with a first mounting flange 32 and a second mounting flange 35 for connecting the rod body 53. A limiting block 41 for restricting the rotation of the front connecting shaft 39 is installed on the first mounting flange 32. The control box assembly 1 includes a main frame, a controller 23, a battery pack 24 and a tensile and compressive force transmitter 25. The controller 23, the battery pack 24 and the tensile and compressive force transmitter 25 are all installed in the main frame. A vibration sensor is installed in the controller 23.

[0038] Refer to Figure 10, the existing non-powered towing bar mainly consists of a towing head assembly 51, a support plate 52, a rod body 53, a solid tire assembly 54, a wheel frame assembly 55, a mechanical lifting assembly 56, a towing armrest 57, a support wheel 58, a towing ring assembly 59, an original towing ring 60, a fixed hoop 61 and a handle 62. However, the existing non-powered towing bar has the following problems: When towing equipment (such as an aircraft) with the non-powered towing bar, it is impossible to effectively detect whether the towing force is too large, and whether the towing force during turning will cause damage to the towed equipment, and it cannot perform data analysis and warning; When the non-powered towing bar equipment is ready to be used, sometimes personnel cannot find the storage location of the non-powered towing bar in time; After long-term use of the non-powered towing bar equipment, some faults or maintenance unavailable states will occur, and sometimes front-line employees are unaware of this state, which will cause time waste or pose a danger in use. In this product, the battery pack 24 powers the entire equipment. The tension and compression transmitter 25 converts the pressure signal of the tension and compression sensor 38 into a standard signal and transmits it to the controller 23 through RS485 / RS232 or an analog signal. The controller 23 collects, processes and sends the pressure signal of the tension and compression transmitter 25. This product adds a control box assembly 1 and replaces the existing towing ring assembly 59 and the original towing ring 60 with a towing assembly 2. When the towing ring 30 is dragged, the limit block 41 can prevent the separation of the tension and compression sensor 38 and the front connecting shaft 39 caused by the rotation of the front connecting shaft 39. The working process of this product is as follows: After the operator connects the towing ring 30 to the towing vehicle and drags this product to the position area of the equipment to be towed, and then uses the towing head assembly 51 to connect to the towed equipment, the mechanical lifting assembly 56 adjusts this product. After starting the towing vehicle, the equipment starts to be towed. At this time, the towing ring 30 and the front connecting shaft 39 start to pull and press the tension and compression sensor 38. The tension and compression sensor 38 drives the rear connecting shaft 40, causing it to squeeze the shock pad 36, thereby driving the entire equipment forward. During the dragging process, because the vibration sensor installed in the controller 23 senses and works, the controller 23 starts to read and calculate the data that the tension and compression sensor 38 transmits to the tension and compression transmitter 25 through the junction box 45 and is converted into a standard signal, and then transmits it to the server. The server feeds back the information to the MRO platform and the handheld terminal.

[0039] Embodiment 2, refer to Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9, An intelligent towing rod, comprising a rod body 53, a towing head assembly 51, a solid tire assembly 54, a mechanical lifting assembly 56, a towing handle 57 and a support wheel 58. The towing head assembly 51, the solid tire assembly 54, the mechanical lifting assembly 56, the towing handle 57 and the support wheel 58 are all installed on the rod body 53. A control box assembly 1 and a towing assembly 2 are also installed on the rod body 53. The towing assembly 2 includes a towing ring 30, a pipe body 34, a tensile and compressive force sensor 38 and a junction box 45. The tensile and compressive force sensor 38 and the junction box 45 are both installed in the pipe body 34, and the tensile and compressive force sensor 38 is electrically connected to the control box assembly 1 through the junction box 45. The front end and the rear end of the tensile and compressive force sensor 38 are respectively connected to a front connecting shaft 39 and a rear connecting shaft 40. A front retaining ring 37 is installed on the rear connecting shaft 40. A rear retaining ring 44 is installed on the rod body 53, and a shock pad 36 is installed between the front retaining ring 37 and the rear retaining ring 44. The towing ring 30 and the front connecting shaft 39 are of an integrated structure. The two ends of the pipe body 34 are respectively installed with a first mounting flange 32 and a second mounting flange 35 for connecting the rod body 53. A limiting block 41 for restricting the rotation of the front connecting shaft 39 is installed on the first mounting flange 32. The control box assembly 1 includes a main frame, a controller 23, a battery pack 24 and a tensile and compressive force transmitter 25. The controller 23, the battery pack 24 and the tensile and compressive force transmitter 25 are all installed in the main frame. A vibration sensor is installed in the controller 23.

[0040] Furthermore, a support plate 52, a wheel frame assembly 55, a fixed clamp 61 and a handle 62 are also installed on the rod body 53. The support plate 52 is used for support. The wheel frame assembly 55 realizes the connection between the solid tire assembly 54 and the rod body 53 and also realizes the connection between the mechanical lifting assembly 56 and the rod body 53. The fixed clamp 61 facilitates subsequent connection to other devices.

[0041] Furthermore, the towing ring 30 and the front connecting shaft 39 are obtained by die-casting with an integrated process. The integrated structure is more firm and is not easy to fall off during use.

[0042] Example 3, refer to Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9A smart towing rod includes a rod body 53, a mop head assembly 51, a solid tire assembly 54, a mechanical lifting assembly 56, a towing handrail 57 and a supporting wheel 58. The mop head assembly 51, the solid tire assembly 54, the mechanical lifting assembly 56, the towing handrail 57 and the supporting wheel 58 are all installed on the rod body 53. The rod body 53 is also equipped with a control box assembly 1 and a towing assembly 2. The towing assembly 2 includes a towing ring 30, a tube body 34, a pulling pressure sensor 38 and a junction box 45. The pulling pressure sensor 38 and the junction box 45 are both installed in the tube body 34 and the pulling pressure sensor 38 is electrically connected to the control box assembly 1 through the junction box 45. The front end and the rear end of the pulling pressure sensor 38 are respectively connected to the front connecting shaft 39 is connected to the rear connecting shaft 40, a front retaining ring 37 is installed on the rear connecting shaft 40, a rear retaining ring 44 is installed on the rod body 53, and a shock absorbing pad 36 is installed between the front retaining ring 37 and the rear retaining ring 44, the traction ring 30 and the front connecting shaft 39 are an integrated structure, the two ends of the tube body 34 are respectively installed with a first mounting flange 32 and a second mounting flange 35 for connecting the rod body 53, and a limit block 41 for limiting the rotation of the front connecting shaft 39 is installed on the first mounting flange 32. The control box assembly 1 includes a main frame, a controller 23, a battery pack 24 and a tension and pressure transmitter 25, and the controller 23, the battery pack 24 and the tension and pressure transmitter 25 are all installed in the main frame, and a vibration sensor is installed in the controller 23. The first mounting flange 32 is connected to the tube body 34 by screws 31 and nuts 33, and the two are not easy to fall off, and the connection is firm, which further strengthens the connection stability of the limit block 41.

[0043] Furthermore, the tension pressure sensor 38 is connected to the front connecting shaft 39 and the rear connecting shaft 40 respectively by means of threads, and is fastened with a hexagonal nut 43 to prevent the hexagonal nut 43 from loosening due to reversal, thereby ensuring that the tension pressure sensor 38 does not separate from the tube body 34.

[0044] Furthermore, the front retaining ring 37 is fixed to the rear connecting shaft 40 by a cylindrical pin 42 , and the connection is firm. The cylindrical pin 42 can also limit the shock-absorbing pad 36 , further ensuring the shock-absorbing effect of the shock-absorbing pad 36 .

[0045] Furthermore, the rear retaining ring 44 is connected to the rod body 53 by welding, thereby strengthening the limiting effect on the shock-absorbing pad 36 and improving the overall impact resistance.

[0046] Example 4, see Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 and Figure 9, An intelligent towing rod, comprising a rod body 53, a towing head assembly 51, a solid tire assembly 54, a mechanical lifting assembly 56, a towing handle 57 and a support wheel 58. The towing head assembly 51, the solid tire assembly 54, the mechanical lifting assembly 56, the towing handle 57 and the support wheel 58 are all installed on the rod body 53. A control box assembly 1 and a towing assembly 2 are also installed on the rod body 53. The towing assembly 2 includes a towing ring 30, a pipe body 34, a tensile and compressive force sensor 38 and a junction box 45. The tensile and compressive force sensor 38 and the junction box 45 are both installed in the pipe body 34, and the tensile and compressive force sensor 38 is electrically connected to the control box assembly 1 through the junction box 45. The front end and the rear end of the tensile and compressive force sensor 38 are respectively connected to a front connecting shaft 39 and a rear connecting shaft 40. A front retaining ring 37 is installed on the rear connecting shaft 40. A rear retaining ring 44 is installed on the rod body 53, and a shock pad 36 is installed between the front retaining ring 37 and the rear retaining ring 44. The towing ring 30 and the front connecting shaft 39 are of an integral structure. The two ends of the pipe body 34 are respectively installed with a first mounting flange 32 and a second mounting flange 35 for connecting the rod body 53. A limiting block 41 for restricting the rotation of the front connecting shaft 39 is installed on the first mounting flange 32. The control box assembly 1 includes a main frame, a controller 23, a battery pack 24 and a tensile and compressive force transmitter 25. The controller 23, the battery pack 24 and the tensile and compressive force transmitter 25 are all installed in the main frame. A vibration sensor is installed in the controller 23. A cable 46 is also installed in the pipe body 34. The junction box 45 is connected to the tensile and compressive force transmitter 25 through the cable 46, and the pressure signal can be quickly transmitted into the tensile and compressive force transmitter 25.

[0047] Further, a GPS locator is also installed in the pipe body 34. The GPS locator is electrically connected to the controller 23 and can send the position information of the device.

[0048] Example 5, refer to Figures 1 - 9, An intelligent towing bar, comprising a rod body 53, a towing head assembly 51, a solid tire assembly 54, a mechanical lifting assembly 56, a towing handle 57 and a support wheel 58. The towing head assembly 51, the solid tire assembly 54, the mechanical lifting assembly 56, the towing handle 57 and the support wheel 58 are all installed on the rod body 53. A control box assembly 1 and a towing assembly 2 are also installed on the rod body 53. The towing assembly 2 includes a towing ring 30, a tube body 34, a tensile and compressive force sensor 38 and a junction box 45. The tensile and compressive force sensor 38 and the junction box 45 are both installed inside the tube body 34, and the tensile and compressive force sensor 38 is electrically connected to the control box assembly 1 through the junction box 45. The front end and the rear end of the tensile and compressive force sensor 38 are respectively connected to a front connecting shaft 39 and a rear connecting shaft 40. A front retaining ring 37 is installed on the rear connecting shaft 40. A rear retaining ring 44 is installed on the rod body 53, and a shock pad 36 is installed between the front retaining ring 37 and the rear retaining ring 44. The towing ring 30 and the front connecting shaft 39 are of an integral structure. Both ends of the tube body 34 are respectively installed with a first mounting flange 32 and a second mounting flange 35 for connecting the rod body 53. A limiting block 41 for restricting the rotation of the front connecting shaft 39 is installed on the first mounting flange 32. The control box assembly 1 includes a main frame, a controller 23, a battery pack 24 and a tensile and compressive force transmitter 25. The controller 23, the battery pack 24 and the tensile and compressive force transmitter 25 are all installed inside the main frame. A vibration sensor is installed inside the controller 23. The main frame includes a top plate 10, a frame 13 and side plates 16. The top plate 10 is connected to the lower half of the frame 13 through a hinge 12, a hook 17 and a door lock assembly 18, and can be opened or closed by flipping. The door lock assembly 18 can close the main frame to ensure that the components inside the main frame will not be damaged or taken away, improving safety.

[0049] Further, a first solar panel 11 is installed on the top plate 10, and a second solar panel 15 is installed on the side plate 16. The first solar panel 11 and the second solar panel 15 can convert solar energy into electrical energy and then charge the battery pack 24 through the controller 23.

[0050] Further, an antenna 14 is also installed on the frame 13 for wireless signal transmission and sending and receiving GPS signals. Heat dissipation holes 22 are opened on the frame 13, which can help dissipate heat inside the control box assembly 1 and extend the continuous working time of the control box assembly 1.

[0051] Further, a power switch 19, a fuse tube 20 and a buzzer 21 are installed inside the frame 13. The power switch 19, the fuse tube 20 and the buzzer 21 are all electrically connected to the controller 23. The power switch 19 controls the power supply of the whole device. The fuse tube 20 is used for overcurrent protection of the electrical system. The buzzer 21 gives an audible and visual alarm when the device fails.

[0052] Example 6, refer to Figures 1 - 9, a smart towing bar, comprising a rod body 53, a towing head assembly 51, a solid tire assembly 54, a mechanical lifting assembly 56, a towing arm 57 and a support wheel 58. The towing head assembly 51, the solid tire assembly 54, the mechanical lifting assembly 56, the towing arm 57 and the support wheel 58 are all installed on the rod body 53. A control box assembly 1 and a towing assembly 2 are also installed on the rod body 53. The towing assembly 2 includes a towing ring 30, a tube body 34, a tensile and compressive force sensor 38 and a junction box 45. The tensile and compressive force sensor 38 and the junction box 45 are both installed inside the tube body 34, and the tensile and compressive force sensor 38 is electrically connected to the control box assembly 1 through the junction box 45. The front end and the rear end of the tensile and compressive force sensor 38 are respectively connected to a front connecting shaft 39 and a rear connecting shaft 40. A front retaining ring 37 is installed on the rear connecting shaft 40. A rear retaining ring 44 is installed on the rod body 53, and a shock pad 36 is installed between the front retaining ring 37 and the rear retaining ring 44. The towing ring 30 and the front connecting shaft 39 are of an integrated structure. The tube body 34 is respectively installed with a first mounting flange 32 and a second mounting flange 35 for connecting the rod body 53 at both ends. A limiting block 41 for restricting the rotation of the front connecting shaft 39 is installed on the first mounting flange 32. The control box assembly 1 includes a main frame, a controller 23, a battery pack 24 and a tensile and compressive force transmitter 25. The controller 23, the battery pack 24 and the tensile and compressive force transmitter 25 are all installed inside the main frame. A vibration sensor is installed inside the controller 23. A support plate 52, a wheel frame assembly 55, a fixed clamp 61 and a handle 62 are also installed on the rod body 53. The support plate 52 is used for support. The wheel frame assembly 55 realizes the connection between the solid tire assembly 54 and the rod body 53 and also realizes the connection between the mechanical lifting assembly 56 and the rod body 53. The fixed clamp 61 is convenient for subsequent connection with other devices. The towing ring 30 and the front connecting shaft 39 are obtained by die-casting with an integrated process. The integrated structure is more firm and not easy to fall off during use. The first mounting flange 32 is connected to the tube body 34 through screws 31 and nuts 33, and the two are not easy to fall off, with good connection firmness, further strengthening the connection stability of the limiting block 41. The tensile and compressive force sensor 38 is connected to the front connecting shaft 39 and the rear connecting shaft 40 respectively by means of threads, and a hexagonal nut 43 is used for fastening to prevent the loosening of the hexagonal nut 43 caused by reverse rotation, ensuring that the tensile and compressive force sensor 38 does not break away from the tube body 34. The front retaining ring 37 is fixed to the rear connecting shaft 40 by a cylindrical pin 42, with good connection firmness. The cylindrical pin 42 can also limit the shock pad 36, further ensuring the shock absorption effect of the shock pad 36. The rear retaining ring 44 is connected to the rod body 53 by welding, strengthening the limiting effect on the shock pad 36, and the overall impact resistance is good. A cable 46 is also installed inside the tube body 34. The junction box 45 is connected to the tensile and compressive force transmitter 25 through the cable 46, and the pressure signal can be quickly transmitted into the tensile and compressive force transmitter 25. A GPS locator is also installed inside the tube body 34. The GPS locator is electrically connected to the controller 23 and can send the position information of the device.The main frame includes a top plate 10, a frame 13 and side plates 16. The top plate 10 is connected to the lower half of the frame 13 through hinges 12, hooks 17 and a door lock assembly 18, and can be opened or closed by flipping. The door lock assembly 18 can close the main frame to ensure that the components inside the main frame will not be damaged or taken away, improving safety. A first solar panel 11 is installed on the top plate 10, and a second solar panel 15 is installed on the side plates 16. The first solar panel 11 and the second solar panel 15 can convert solar energy into electrical energy, and then charge the battery pack 24 through a controller 23. An antenna 14 is also installed on the frame 13 for wireless signal transmission and the sending and receiving of GPS signals. Heat dissipation holes 22 are provided on the frame 13, which can help dissipate the heat inside the control box assembly 1 and extend the continuous working time of the control box assembly 1. A power switch 19, a fuse 20 and a buzzer 21 are installed inside the frame 13. The power switch 19, the fuse 20 and the buzzer 21 are all electrically connected to the controller 23. The power switch 19 controls the power supply of the entire device. The fuse 20 is used for overcurrent protection of the electrical system. The buzzer 21 gives an audible and visual alarm when the device fails. The battery pack 24 uses a lithium iron phosphate battery pack, which has mature technology, is easily available in the market, and has good use effects. The battery pack 24 is installed inside the main frame through a star handle 26 and a battery fixing member 27, and has good connection firmness, and the battery pack 24 is not easily detached.

[0053] The controller 23 is the core component of the entire device, mainly performing functions such as GPS position sending, state monitoring of the lithium iron phosphate battery pack, pressure signal acquisition, processing and sending of the tension and compression transmitter 25, converting the electrical energy converted by the solar panel into charging for the lithium iron phosphate battery pack, sending and receiving the state of the towing bar, and controlling the buzzer 21 to emit audible and visual alarms in case of faults. When the power switch 19 is pressed, the lithium iron phosphate battery pack provides power for the entire device. The tension and compression sensor 38 is connected to the tension and compression transmitter 25 through the junction box 45 and the cable 46, transmitting the pressure signal into the tension and compression transmitter 25. The controller 23 sends data such as position information, towing bar state information, battery pack 24 state information, and solar panel state through the antenna 14. The working process at this time is as follows: Before use, the operator queries the state of the non-powered towing bar through a handheld terminal or the MRO platform (this part belongs to the software architecture and is conventional prior art, so it is not described in detail), and it is found that the position information and state of the device are available. The operator arrives at the device location according to the position information, connects the towing ring 30 to the towing vehicle, drags this product to the area of the device to be towed, connects the towing head assembly 51 to the device to be towed after that, adjusts this product with the mechanical lifting assembly 56, starts the towing vehicle, and begins to tow the device. At this time, the towing ring 30 and the front connecting shaft 39 start to pull and press the tension and compression sensor 38, and the tension and compression sensor 38 drives the rear connecting shaft 40, causing it to squeeze the shock pad 36, and then driving the entire device forward. During the dragging process, because the vibration sensor senses and works, the controller 23 starts to read and calculate the data that the tension and compression sensor 38 transmits into the tension and compression transmitter 25 through the junction box 45 and the cable 46 and is converted into a standard signal, and then transmits it to the server through the antenna 14. The server feeds back the information to the MRO platform and the handheld terminal. During this process, the controller 23 also sends data such as real-time position information, towing bar state information, battery pack 24 state information, and solar panel state through the antenna 14. At the same time, it will receive data sent down by the superior server, and when receiving an alarm message, it will make the buzzer 21 emit audible and visual alarms to remind the staff.

[0054] With the above structure, the operator can use the intelligent terminal device to query the location and available status of this product with one key, which is convenient for equipment management, can reduce the processes and workload of the staff, improve work efficiency. At the same time, since the equipment has GPS positioning, data uploading and receiving functions, it can be used for the intelligent platform management of the airport in the future, can accurately locate the operator and the equipment location, thereby improving work efficiency. At the same time, the towing pulling pressure data of the equipment can be analyzed and studied, so as to provide data support for the maintainability of the towed equipment. This product not only has a simple mechanical structure, but also uses a solar panel to supply power to the battery pack 24, which can fully save battery power and improve the endurance ability, and can be used for the traction of various non-powered equipment. At the same time, the front traction assembly 2 is of a general type, and only by changing the size of the mounting flange can it be connected to various traction equipment. This intelligent towing rod is flexible and fast in operation, and the required electrical control system is simple and reliable, reducing the maintenance and management cost of the product and improving the towing safety.

[0055] It should be noted that in the present invention, unless otherwise clearly specified and limited, terms such as "rotation", "fixation", "provided with" should be understood in a broad sense. For example, it can be a welded connection, a bolt connection, or integrated; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0056] In addition, it should be understood that although this specification is described according to embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A smart towing rod, comprising a rod body, a mop head assembly, a solid tire assembly, a mechanical lifting assembly, a towing handrail and a support wheel, wherein the mop head assembly, the solid tire assembly, the mechanical lifting assembly, the towing handrail and the support wheel are all mounted on the rod body, characterized in that: A control box assembly and a traction assembly are also installed on the rod body. The traction assembly includes a traction ring, a tube body, a tension pressure sensor and a junction box. The tension pressure sensor and the junction box are both installed in the tube body and the tension pressure sensor is electrically connected to the control box assembly through the junction box. The front end and the rear end of the tension pressure sensor are respectively connected to the front connecting shaft and the rear connecting shaft. A front retaining ring is installed on the rear connecting shaft. A rear retaining ring is installed on the rod body and a shock-absorbing pad is installed between the front retaining ring and the rear retaining ring. The traction ring and the front connecting shaft are an integrated structure. A first mounting flange and a second mounting flange are respectively installed at both ends of the tube body. A limit block is installed on the first mounting flange. The control box assembly includes a main frame, a controller, a battery pack and a tension pressure transmitter. The controller, the battery pack and the tension pressure transmitter are all installed in the main frame, and a vibration sensor is installed in the controller.

2. The smart tow bar according to claim 1, characterized in that: A support plate, a wheel frame assembly, a fixing hoop and a handle are also installed on the rod body.

3. The smart tow bar according to claim 1, characterized in that: The tension and pressure sensors are respectively connected to the front connecting shaft and the rear connecting shaft by means of threads and are fastened by means of hexagonal nuts.

4. The smart tow bar according to claim 3, characterized in that: The front retaining ring is fixed to the rear connecting shaft through a cylindrical pin.

5. The smart tow bar according to claim 3 or 4, characterized in that: The rear retaining ring is connected to the rod body by welding.

6. The smart tow bar according to claim 1, characterized in that: The main frame comprises a top plate, a frame and side plates, and the top plate is connected with the lower part of the frame through hinges, hooks and door lock components.

7. The smart tow bar according to claim 6, characterized in that: A first solar panel is installed on the top plate, and a second solar panel is installed on the side plate.

8. The smart tow bar according to claim 1, characterized in that: A GPS locator is also installed in the pipe body, and the GPS locator is electrically connected to the controller.

9. The smart tow bar according to claim 1, characterized in that: A power switch, a fuse and a buzzer are installed in the frame, and the power switch, the fuse and the buzzer are all electrically connected to the controller.

10. The smart tow bar according to claim 1 or 9, characterized in that: The battery pack is mounted in the main frame via a star-shaped handle and a battery fixing member.

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