Emergency runway separation device

Abstract

The utility model relates to the technical field of airplane emergency rescue traction, in particular to an emergency runway separation device which comprises a hydraulic lifting device used for jacking airplane wheels and a trailer used for placing the airplane wheels, the hydraulic lifting device comprises an oil tank, a multi-stage hydraulic cylinder is installed at one end of the oil tank, a jacking head screw is installed on the multi-stage hydraulic cylinder, and the trailer is connected with the hydraulic lifting device. A hydraulic pump is installed at the other end of the oil tank, a low-pressure piston rocker and a high-pressure piston rocker are installed on the hydraulic pump, and handle temporary placing rods and inserting rods are installed on the two sides of the hydraulic pump; the trailer comprises a tire placing plate, and a front universal wheel is installed at one end of the tire placing plate. According to the device, the multi-stage hydraulic jack is adopted to quickly jack up the airplane wheels, the trailer can be conveniently placed below the airplane wheels, the airplane can slowly descend through the multi-stage hydraulic jack so that the airplane wheels can be placed on the trailer, and the airplane can be conveniently dragged and moved through the trailer.

Description

Technical Field

[0001] This utility model relates to the field of aircraft emergency rescue towing technology, specifically an emergency runway detachment device. Background Technology

[0002] While traditional emergency towing equipment (such as wheel-locking tow trucks) performs reliably in routine aircraft towing, they have several limitations in emergency scenarios (such as tire blowouts, worn-out wheels, or wheels locked by brakes). These limitations mainly include the following aspects:

[0003] 1. Low efficiency of the fixing method: Traditional emergency towing equipment usually requires manual installation of tow bars, ropes or chains, which is complicated and time-consuming. 2. Poor adaptability: Traditional emergency towing equipment lacks a low-profile design and cannot safely fix and lift the aircraft. 3. Limited maneuverability: Traditional emergency towing equipment has a large turning radius and is clumsy in steering. In summary, existing emergency towing equipment cannot allow aircraft to quickly leave the runway in an emergency. Therefore, an emergency runway evacuation device is provided. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an emergency runway detachment device to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an emergency runway detachment device, comprising a hydraulic lifting device for lifting aircraft wheels and a trailer for placing aircraft wheels, the hydraulic lifting device comprising an oil tank, a multi-stage hydraulic cylinder mounted at one end of the oil tank, a top screw mounted on the multi-stage hydraulic cylinder, a hydraulic pump mounted at the other end of the oil tank, a low-pressure piston rocker and a high-pressure piston rocker mounted on the hydraulic pump, and temporary handle placement rods and insertion rods mounted on both sides of the hydraulic pump;

[0006] The trailer includes a tire placement plate, one end of which is equipped with a front swivel wheel, the other end of which is equipped with a rear fixed wheel, and auxiliary moving wheels are installed on both sides of the other end of the tire placement plate.

[0007] As a preferred embodiment of this utility model, one end of the hydraulic lifting device is equipped with a moving wheel.

[0008] As a preferred embodiment of this utility model, a manual pump handle is inserted into the temporary handle placement rod.

[0009] As a preferred embodiment of this utility model, the top of the oil tank is provided with an oil tank cover, and the side of the oil tank is equipped with an oil return valve.

[0010] In a preferred embodiment of this invention, the hydraulic pump is connected to the oil tank via a pipeline, and the oil tank is connected to the multi-stage hydraulic cylinder via a pipeline.

[0011] As a preferred embodiment of this utility model, connecting rods are installed on both sides of the trailer, and lifting handles are fitted on the connecting rods. Both the lifting handles and the connecting rods have pin holes, and the lifting handles are connected to the connecting rods by positioning pins.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device uses a multi-stage hydraulic jack to quickly lift the aircraft wheels, making it easy to place a trailer under the wheels. The multi-stage hydraulic jack allows the aircraft to descend slowly, allowing the wheels to be placed on the trailer, which then facilitates towing and moving the aircraft.

[0014] The multi-stage hydraulic jack is equipped with high and low pressure piston rockers, which can achieve rapid lifting under no-load conditions and labor-saving functions under load.

[0015] The trailer structure allows the aircraft to be lifted by a multi-stage hydraulic jack and moved to the bottom of the wheels without contacting the aircraft during the movement. The trailer is also equipped with auxiliary wheels, which allow it to be moved accurately, quickly, and reliably to the bottom of the wheels during use.

[0016] The trailer is equipped with a detachable lifting handle for easy handling. The lifting handle is connected to the vehicle body using a pin hole and positioning pin structure, which is simple, reliable, and easy to connect and disassemble.

[0017] The trailer can be used in conjunction with a tractor to tow an aircraft. Its front wheels are equipped with an ultra-heavy-duty movable double wheel set, which is flexible and effectively reduces the turning radius. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the hydraulic lifting device of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the trailer of this utility model.

[0020] In the diagram: 1. Hydraulic lifting device; 101. Multi-stage hydraulic cylinder; 102. Top screw; 103. Casters; 104. Manual pump handle; 105. Low-pressure piston rocker arm; 106. High-pressure piston rocker arm; 107. Oil tank cover; 108. Return valve; 109. Temporary handle placement rod; 110. Insertion rod; 111. Oil tank; 112. Hydraulic pump;

[0021] 2. Trailer; 201. Tire placement platform; 202. Rear fixed wheels; 203. Front swivel wheels; 204. Lifting handle; 205. Auxiliary moving wheels. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0023] Example: Please refer to Figure 1-2 This utility model provides a technical solution: an emergency runway detachment device, including a hydraulic lifting device 1 for lifting aircraft wheels and a trailer 2 for placing aircraft wheels. The hydraulic lifting device 1 includes an oil tank 111. A multi-stage hydraulic cylinder 101 is installed at one end of the oil tank 111. A top screw 102 is installed on the multi-stage hydraulic cylinder 101. A hydraulic pump 112 is installed at the other end of the oil tank 111. A low-pressure piston rocker 105 and a high-pressure piston rocker 106 are installed on the hydraulic pump 112. A handle temporary placement rod 109 and a plug rod 110 are installed on both sides of the hydraulic pump 112.

[0024] The trailer 2 includes a tire placement plate 201, with a front swivel wheel 203 installed at one end of the tire placement plate 201, a rear fixed wheel 202 installed at the other end of the tire placement plate 201, and auxiliary moving wheels 205 installed on both sides of the other end of the tire placement plate 201.

[0025] One end of the hydraulic lifting device 1 is equipped with a caster wheel 103 for easy movement.

[0026] A manual pump handle 104 is inserted into the temporary handle placement rod 109 for easy placement of the manual pump handle 104 in case it is lost.

[0027] The top of the oil tank 111 is equipped with an oil tank cover 107, and the side of the oil tank 111 is equipped with a return oil valve 108. By opening the return oil valve 108, the multi-stage hydraulic cylinder 101 is slowly lowered under the action of the weight.

[0028] The hydraulic pump 112 is connected to the oil tank 111 through a pipeline, and the oil tank 111 is connected to the multi-stage hydraulic cylinder 101 through a pipeline. By injecting gas into the oil tank 111, the hydraulic oil in the oil tank 111 is delivered to the multi-stage hydraulic cylinder 101, causing the multi-stage hydraulic cylinder 101 to rise.

[0029] Both sides of the trailer 2 are equipped with connecting rods, and lifting handles 204 are fitted on the connecting rods. Both the lifting handles 204 and the connecting rods have pin holes. The lifting handles 204 and the connecting rods are connected by positioning pins for easy and quick assembly and disassembly.

[0030] One end of the manual pump handle 104 is provided with a threaded sleeve. The temporary handle placement rod 109 and the insertion rod 110 are both provided with external threads that match the threaded sleeve, making the connection firm, not easy to fall off, and convenient to use.

[0031] Working principle: An emergency runway detachment device. In use, first pull the manual pump handle 104 out of the temporary handle placement rod 109, then insert it into the insertion rod 110. The insertion rod 110 is threadedly connected to the manual pump handle 104 via the moving wheels 103 and the manual pump handle 104. After moving the hydraulic lifting device 1 to the appropriate position, remove the manual pump handle 104 from the insertion rod 110 and insert it into the low-pressure piston rocker 105 or high-pressure piston rocker 106. The manual pump handle 104 drives the low-pressure piston rocker 105 or high-pressure piston rocker 106 to move up and down, thereby injecting oil into the tank 111. Air pressure is used to deliver hydraulic oil from the oil tank 111 to the multi-stage hydraulic cylinder 101, causing the multi-stage hydraulic cylinder 101 to rise and lift the aircraft wheel. The minimum height of the hydraulic lifting device 1 meets the minimum height of the wheel dent from the ground after a tire blowout, and its stroke meets the height required for the trailer to be placed under the aircraft wheel after lifting it. Then, the operator moves the trailer 2 under the aircraft wheel using the lifting handle 204, and then opens the return oil valve 108 to allow the multi-stage hydraulic cylinder 101 to slowly descend, so that the aircraft wheel falls onto the tire placement plate 201. The trailer 2 is designed with auxiliary moving wheels 205, which can be accurately, quickly and reliably moved to the bottom of the aircraft wheel during use. Then, the aircraft is towed by a tractor. Its front wheel uses an ultra-heavy-duty movable double wheel set, which is flexible in steering and effectively reduces the turning radius.

[0032] The above embodiments merely illustrate the implementation of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. An emergency runway evacuation device, comprising a hydraulic lifting device (1) for lifting aircraft wheels and a trailer (2) for placing aircraft wheels, characterized in that: The hydraulic lifting device (1) includes an oil tank (111), a multi-stage hydraulic cylinder (101) is installed at one end of the oil tank (111), a top screw (102) is installed on the multi-stage hydraulic cylinder (101), a hydraulic pump (112) is installed at the other end of the oil tank (111), a low-pressure piston rocker (105) and a high-pressure piston rocker (106) are installed on the hydraulic pump (112), and a handle temporary placement rod (109) and a plug rod (110) are installed on both sides of the hydraulic pump (112). The trailer (2) includes a tire placement plate (201), one end of which is equipped with a front swivel wheel (203), the other end of which is equipped with a rear fixed wheel (202), and both sides of the other end of the tire placement plate (201) are equipped with auxiliary moving wheels (205).

2. The emergency runway evacuation device according to claim 1, characterized in that: One end of the hydraulic lifting device (1) is equipped with a moving wheel (103).

3. The emergency runway evacuation device according to claim 1, characterized in that: The manual pump handle (104) is inserted into the temporary handle placement rod (109).

4. The emergency runway evacuation device according to claim 1, characterized in that: The top of the oil tank (111) is provided with an oil tank cover (107), and the side of the oil tank (111) is provided with an oil return valve (108).

5. The emergency runway evacuation device according to claim 1, characterized in that: The hydraulic pump (112) is connected to the oil tank (111) via a pipeline, and the oil tank (111) is connected to the multi-stage hydraulic cylinder (101) via a pipeline.

6. The emergency runway evacuation device according to claim 1, characterized in that: The trailer (2) is equipped with connecting rods on both sides. The connecting rods are fitted with lifting handles (204). Both the lifting handles (204) and the connecting rods have pin holes. The lifting handles (204) and the connecting rods are connected by positioning pins.

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