Electro-hydraulic hoisting device for airplane service trailer

Abstract

The utility model relates to the field of airport ground service equipment, in particular to an electric hydraulic hoisting device for an aircraft service trailer, which comprises a base, a support column, a telescopic arm, an electric hydraulic rod I, a suspension cable and a clamping device, the support column is fixedly connected with the surface of the base, and the telescopic arm is rotatably connected with the surface of the support column; one end of the first electric hydraulic rod is rotationally connected with the surface of the supporting column, the other end of the first electric hydraulic rod is rotationally connected with the surface of the telescopic arm, the suspension cable is slidably installed on the surface of the telescopic arm, the clamping device is arranged on the surface of the base and comprises two sets of installation columns, and the installation columns are fixedly connected with the surface of the base. A movable table is slidably connected to the surface of the mounting column, and an inner cavity is formed in the movable table. According to the utility model, by arranging the clamping device, the wheel chock which is positioned below the aircraft wheel and is inconvenient to hoist is clamped and withdrawn from the wheel, so that hoisting and transportation are facilitated, manual carrying is avoided, and the usability of equipment is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of airport ground service equipment, in particular to an electric hydraulic lifting device for an aircraft service trailer. Background Art

[0002] Wheel chocks are essential tools and equipment for aircraft maintenance. Placed under the aircraft's wheels, they prevent accidental sliding and ensure secure and stable parking. Especially in windy weather, heavier chocks may be necessary for added safety. However, airports often lack suitable lifting and trailers for transporting wheel chocks.

[0003] Prior art, such as Chinese patent publication number CN218434626U, discloses an electric-hydraulic lifting device for an aircraft service trailer, including a lifting mechanism, a moving mechanism being provided on the outside of the lifting mechanism, the lifting mechanism including a trailer, a first electric lifting column being fixedly connected to the top of the trailer, a support plate being fixedly connected to the top of the first electric lifting column, a groove being provided at one end of the support plate, a second electric lifting column being fixedly connected inside the groove, and a balance plate being fixedly connected to one end of the second electric lifting column; the electric-hydraulic lifting device for the aircraft service trailer activates the first electric lifting column to drive the support plate to rise to the bottom of the large-sized aircraft material, so that the support plate can support the large-sized aircraft material, and then reaches the ends of both ends of the large-sized aircraft material through the balance plate, thereby keeping the large-sized aircraft material stable, and conveniently moving the large-sized aircraft material through the moving mechanism, thereby completing the operation of lifting and moving the large-sized aircraft material.

[0004] In order to solve the problem of inconvenient transportation of wheel chocks during aircraft service, since the wheel chocks are located under the wheels, lifting equipment cannot be used directly during use and evacuation. Instead, staff are required to move the wheel chocks out from under the wheels first, and then use other equipment to transport the wheel chocks and store them in the warehouse. Frequent transportation of wheel chocks weighing about 30 kilograms will bring great burden and harm to the staff's body, so improvements are needed. Utility Model Content

[0005] The purpose of the utility model is to solve the disadvantage in the prior art that wheel chocks are inconvenient to carry during aircraft service, and to propose an electric hydraulic lifting device for an aircraft service trailer.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an electric hydraulic lifting device for an aircraft service trailer, comprising a base, a support column, a telescopic arm, an electric hydraulic rod 1, a suspension cable and a clamping device, wherein the support column is fixedly connected to the surface of the base, the telescopic arm is rotatably connected to the surface of the support column, one end of the electric hydraulic rod 1 is rotatably connected to the surface of the support column, the other end of the electric hydraulic rod 1 is rotatably connected to the surface of the telescopic arm, the suspension cable is slidably installed on the surface of the telescopic arm, and the clamping device is arranged on the surface of the base, and the clamping device includes a mounting column, which is fixedly connected to the surface of the base, and the number of the mounting columns is two groups, and the surface of the mounting column is slidably connected to a movable platform, an inner cavity is opened inside the movable platform, and a motor 1 is fixedly mounted on the surface of the movable platform, and the output end of the motor 1 is fixedly connected to a bidirectional threaded rod.

[0007] Furthermore, the bidirectional threaded rod is rotatably connected to the inner wall of the movable platform, and the surface of the bidirectional threaded rod located in the inner cavity is threadedly connected to movable blocks, and the number of the movable blocks is two groups and they are symmetrically arranged.

[0008] Furthermore, the upper surface of the movable block is rotatably connected to the connecting rod 1, the lower surface of the movable block is rotatably connected to the connecting rod 2, and the surfaces of the connecting rod 1 and the connecting rod 2 are rotatably connected to the center column.

[0009] Furthermore, the other ends of the connecting rod 1 and the connecting rod 2 are fixedly connected to a slider, a sliding groove is provided on the surface of the movable platform, the slider is slidably connected to the surface of the sliding groove, and the surface of the slider is fixedly connected to a splint.

[0010] Furthermore, a rotating device is provided on the surface of the splint, and the rotating device includes a second motor. A circular groove is provided on the surface of the splint, and the second motor is fixedly mounted on the surface of the circular groove. The output end of the second motor is fixedly connected to a turntable.

[0011] Furthermore, a telescopic rod is fixedly connected to the surface of the turntable, the other end of the telescopic rod is fixedly connected to the clamping disk, the surface of the telescopic rod is sleeved with a spring, one end of the spring is fixedly connected to the surface of the disc, and the other end of the spring is fixedly connected to the surface of the clamping disk. The number of telescopic rods and springs is four groups and they are distributed in a circle, and the surface of the clamping disk is fixedly connected to a rubber pad.

[0012] Furthermore, the surface of the base is fixedly connected to an electric hydraulic rod 2, a driving end of the electric hydraulic rod 2 is fixedly connected to a mounting plate, and the movable platform is fixedly mounted on the surface of the mounting plate.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. The utility model discloses a clamping device is set up, when needing to take off the wheel stop, the equipment is removed to the aircraft wheel below, and the motor is started one and makes the two -way threaded rod rotate, drives two groups of movable block and walks towards each other, and further makes the connecting rod one and connecting rod two common push -slide in the sliding slot, under the action of connecting rod one and connecting rod two, the slide is both transverse motion and longitudinal motion, makes two groups of clamping plates walk towards each other while projecting forward, and the wheel stop below the wheel is clamped, then removes the wheel stop from the wheel below by moving the equipment to facilitate the loading and transportation operation, the wheel stop below the aircraft wheel is clamped and removed from the wheel below through the setting clamping device, so as to facilitate hoisting and transportation, avoid manual handling, and effectively improve the ease of use of the equipment.

[0015] 2. The utility model discloses a rotating device is set up, after the wheel stop is removed from the aircraft wheel below, the movable platform is pushed up along the mounting post by starting electric hydraulic rod no. two, further makes the wheel stop that is clamped away from the ground a distance, then the motor no. two is started and makes the rotating disc rotate, further makes the telescopic link drive clamping disc rotate, drives the wheel stop that is clamped and realizes rotation, so as to facilitate the staff to install the suspension cable and facilitate hoisting, also can conveniently adjust to the appropriate angle and store in the warehouse or block the aircraft wheel, utilizes telescopic link, spring and rubber pad to make the clamping process not damage the wheel stop, and because movable platform and electric hydraulic rod no. two are fixedly installed through the mounting plate, so can replace the clamping device of different sizes and adapt to the wheel stop of different sizes, through the setting rotating device, can make the wheel stop that is clamped and hang and carry out angle adjustment, so as to install the suspension cable and hoist and store in the warehouse or block the aircraft wheel, effectively improve the convenience of the equipment. ACCURACY OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of the utility model is provided for the aircraft service trailer electric hydraulic hoisting device;

[0017] Figure 2 A part structure schematic diagram of the clamping device in the aircraft service trailer electric hydraulic hoisting device is provided for the utility model;

[0018] Figure 3 A part structure schematic diagram of the clamping device in the aircraft service trailer electric hydraulic hoisting device is provided for the utility model;

[0019] Figure 4 A part structure schematic diagram of the rotating device in the aircraft service trailer electric hydraulic hoisting device is provided for the utility model;

[0020] Figure 5 A part structure schematic diagram of the rotating device in the aircraft service trailer electric hydraulic hoisting device is provided for the utility model.

[0021] LEGEND:

[0022] 1. Base; 2. Support column; 3. Telescopic arm; 4. Electric hydraulic rod 1; 5. Suspension rope; 6. Clamping device; 601. Mounting column; 602. Movable platform; 603. Inner cavity; 604. Motor 1; 605. Bidirectional threaded rod; 606. Movable block; 607. Connecting rod 1; 608. Connecting rod 2; 609. Center column; 610. Slider; 611. Slide groove; 612. Clamping plate; 7. Rotating device; 71. Motor 2; 72. Circular groove; 73. Turntable; 74. Telescopic rod; 75. Spring; 76. Clamping disk; 77. Rubber pad; 78. Electric hydraulic rod 2; 79. Mounting plate. DETAILED DESCRIPTION

[0023] See also Figure 1-5 The utility model provides a technical solution: an electric hydraulic lifting device for an aircraft service trailer, comprising a base 1, a support column 2, a telescopic arm 3, an electric hydraulic rod 4, a suspension cable 5 and a clamping device 6, the support column 2 is fixedly connected to the surface of the base 1, the telescopic arm 3 is rotatably connected to the surface of the support column 2, one end of the electric hydraulic rod 4 is rotatably connected to the surface of the support column 2, the other end of the electric hydraulic rod 4 is rotatably connected to the surface of the telescopic arm 3, the suspension cable 5 is slidably installed on the surface of the telescopic arm 3, and the clamping device 6 is arranged on the surface of the base 1.

[0024] The specific configuration and function of the clamping device 6 and the rotating device 7 will be described in detail below.

[0025] In this embodiment: the clamping device 6 includes a mounting column 601, which is fixedly connected to the surface of the base 1. There are two groups of mounting columns 601. The surface of the mounting column 601 is slidably connected to a movable platform 602. An inner cavity 603 is provided inside the movable platform 602. A motor 1 604 is fixedly installed on the surface of the movable platform 602. The output end of the motor 1 604 is fixedly connected to a bidirectional threaded rod 605.

[0026] The effects achieved by the above components are: placing the movable platform 602 on the base 1 along the mounting column 601, setting the inner cavity to facilitate the placement of the clamping device 6, and starting the motor 1 604 to rotate the bidirectional threaded rod 605.

[0027] Specifically, the bidirectional threaded rod 605 is rotatably connected to the inner wall of the movable platform 602, and the surface of the bidirectional threaded rod 605 located in the inner cavity 603 is threadedly connected to the movable block 606, and the number of the movable blocks 606 is two groups and they are symmetrically arranged.

[0028] The effects achieved by the above components are: the bidirectional threaded rod 605 rotates to make the two sets of movable blocks 606 move toward each other, thereby clamping the wheel chock.

[0029] Specifically, the upper surface of the movable block 606 is rotatably connected to the connecting rod 1 607, the lower surface of the movable block 606 is rotatably connected to the connecting rod 2 608, and the surfaces of the connecting rod 1 607 and the connecting rod 2 608 are rotatably connected to the center column 609.

[0030] The effect achieved by the above components is that the two groups of movable blocks 606 move towards each other, thereby driving the movement of connecting rod 1 607 and connecting rod 2 608. The central column 609 is provided to enable connecting rod 1 607 and connecting rod 2 608 to move synchronously and stably.

[0031] Specifically, the other ends of connecting rod 1 607 and connecting rod 2 608 are fixedly connected to sliders 610, a sliding groove 611 is provided on the surface of the movable platform 602, the sliders 610 are slidingly connected to the surfaces of the sliding groove 611, and the surfaces of the sliders 610 are fixedly connected to splints 612.

[0032] The effect achieved by the above components is as follows: the two sets of movable blocks 606 move toward each other, so that the connecting rod 1 607 and the connecting rod 2 608 jointly push the slider 610 to slide in the slide groove 611. Under the action of the connecting rod 1 607 and the connecting rod 2 608, the slider 610 moves both laterally and longitudinally, so that the two sets of splints 612 move toward each other while extending forward, clamping the wheel chock under the wheel.

[0033] Specifically, a rotating device 7 is provided on the surface of the splint 612, and the rotating device 7 includes a second motor 71. A circular groove 72 is opened on the surface of the splint 612, and the second motor 71 is fixedly installed on the surface of the circular groove 72. The output end of the second motor 71 is fixedly connected to a turntable 73.

[0034] The effects achieved by the above components are as follows: the circular groove 72 is provided to place the rotating device 7, and the second motor 71 is started to rotate the turntable 73.

[0035] Specifically, a telescopic rod 74 is fixedly connected to the surface of the turntable 73, the other end of the telescopic rod 74 is fixedly connected to the clamping disk 76, and a spring 75 is sleeved on the surface of the telescopic rod 74. One end of the spring 75 is fixedly connected to the surface of the turntable 73, and the other end of the spring 75 is fixedly connected to the surface of the clamping disk 76. There are four groups of telescopic rods 74 and springs 75 and they are distributed in a circle. A rubber pad 77 is fixedly connected to the surface of the clamping disk 76.

[0036] The effect achieved by the above components is: the turntable 73 rotates, causing the telescopic rod 74 to drive the clamping plate 76 to rotate, driving the clamped wheel chock to rotate, so that the staff can install the suspension rope 5 for easy lifting, and it can also be easily adjusted to a suitable angle for storage or blocking the aircraft wheel. The telescopic rod 74, spring 75 and rubber pad 77 are used to prevent the wheel chock from being damaged during the clamping process.

[0037] Specifically, the surface of the base 1 is fixedly connected to the electric hydraulic rod 2 78 , the driving end of the electric hydraulic rod 2 78 is fixedly connected to the mounting plate 79 , and the movable platform 602 is fixedly mounted on the surface of the mounting plate 79 .

[0038] The effects achieved by the above components are as follows: the movable platform 602 and the second electric hydraulic rod 78 are fixedly mounted via the mounting plate 79, and the clamping devices 6 of different sizes can be replaced to adapt to wheel chocks of different sizes. Working principle: By setting up the clamping device 6, when the wheel chock needs to be removed, the equipment is moved under the aircraft wheel, and the motor 1 604 is started to rotate the bidirectional threaded rod 605, driving the two sets of movable blocks 606 to move toward each other, and then the connecting rod 1 607 and the connecting rod 2 608 jointly push the slider 610 to slide in the slide groove 611. Under the action of the connecting rod 1 607 and the connecting rod 2 608, the slider 610 moves both laterally and longitudinally, so that the two sets of clamping plates 612 move toward each other while extending forward, clamping the wheel chock under the wheel, and then the mobile device removes the wheel chock from under the wheel for easy loading and transportation operations. By setting up the clamping device 6, the wheel chock that is difficult to load under the aircraft wheel can be clamped and removed from under the wheel for easy loading and transportation, avoiding manual handling, which effectively improves the usability of the equipment. In addition, by setting up the rotating device 7, after the wheel chock is removed from under the aircraft wheel, the electric hydraulic pressure is started. The second rod 78 pushes the movable platform 602 upward along the mounting column 601, thereby making the clamped wheel chock leave the ground for a distance, and then the second motor 71 is started to make the turntable 73 rotate, thereby making the telescopic rod 74 drive the clamping plate 76 to rotate, driving the clamped wheel chock to rotate, so that the staff can install the suspension rope 5 for lifting, and at the same time, it can be adjusted to a suitable angle for storage or blocking the aircraft wheel. The telescopic rod 74, spring 75 and rubber pad 77 are used to prevent the wheel chock from being damaged during the clamping process. Since the movable platform 602 and the electric hydraulic rod 2 78 are fixedly installed through the mounting plate 79, the clamping devices 6 of different sizes can be replaced to adapt to wheel chocks of different sizes. By setting the rotating device 7, the clamped wheel chock can be suspended in the air and the angle can be adjusted, so that the suspension rope 5 can be installed for lifting into the warehouse or blocking the aircraft wheel, thereby effectively improving the convenience of the equipment.

Claims

1. An electric hydraulic lifting device for an aircraft service trailer, comprising a base (1), a support column (2), a telescopic arm (3), an electric hydraulic rod (4), a suspension cable (5) and a clamping device (6), characterized in that: The support column (2) is fixedly connected to the surface of the base (1), the telescopic arm (3) is rotatably connected to the surface of the support column (2), one end of the electric hydraulic rod (4) is rotatably connected to the surface of the support column (2), the other end of the electric hydraulic rod (4) is rotatably connected to the surface of the telescopic arm (3), the suspension rope (5) is slidably mounted on the surface of the telescopic arm (3), the clamping device (6) is arranged on the surface of the base (1), the clamping device (6) includes a mounting column (601), the mounting column (601) is fixedly connected to the surface of the base (1), the number of the mounting columns (601) is two groups, the surface of the mounting column (601) is slidably connected to a movable platform (602), the interior of the movable platform (602) is provided with an inner cavity (603), the surface of the movable platform (602) is fixedly mounted with a motor (604), and the output end of the motor (604) is fixedly connected with a bidirectional threaded rod (605).

2. The electric hydraulic lifting device for an aircraft service trailer according to claim 1, characterized in that: The bidirectional threaded rod (605) is rotatably connected to the inner wall of the movable platform (602), and the surface of the bidirectional threaded rod (605) located in the inner cavity (603) is threadedly connected to a movable block (606), and the movable blocks (606) are in two groups and are symmetrically arranged.

3. The electro-hydraulic lifting device for an aircraft service trailer according to claim 2, characterized in that: The upper surface of the movable block (606) is rotatably connected to the connecting rod 1 (607), the lower surface of the movable block (606) is rotatably connected to the connecting rod 2 (608), and the surfaces of the connecting rod 1 (607) and the connecting rod 2 (608) are rotatably connected to the center column (609).

4. The electric hydraulic lifting device for an aircraft service trailer according to claim 3, characterized in that: The other ends of the connecting rod 1 (607) and the connecting rod 2 (608) are fixedly connected to a slider (610), a sliding groove (611) is provided on the surface of the movable platform (602), the slider (610) is slidably connected to the surface of the sliding groove (611), and the surface of the slider (610) is fixedly connected to a splint (612).

5. The electric hydraulic lifting device for an aircraft service trailer according to claim 4, characterized in that: A rotating device (7) is provided on the surface of the clamping plate (612), and the rotating device (7) includes a second motor (71). A circular groove (72) is provided on the surface of the clamping plate (612), and the second motor (71) is fixedly mounted on the surface of the circular groove (72). The output end of the second motor (71) is fixedly connected to a turntable (73).

6. The electric hydraulic lifting device for an aircraft service trailer according to claim 5, characterized in that: The surface of the turntable (73) is fixedly connected to a telescopic rod (74), the other end of the telescopic rod (74) is fixedly connected to a clamping disk (76), the surface of the telescopic rod (74) is sleeved with a spring (75), one end of the spring (75) is fixedly connected to the surface of the turntable (73), and the other end of the spring (75) is fixedly connected to the surface of the clamping disk (76), the number of the telescopic rods (74) and the springs (75) is four groups and they are distributed in a circular pattern, and the surface of the clamping disk (76) is fixedly connected to a rubber pad (77).

7. The electric hydraulic lifting device for an aircraft service trailer according to claim 1, characterized in that: The surface of the base (1) is fixedly connected to an electric hydraulic rod 2 (78), the driving end of the electric hydraulic rod 2 (78) is fixedly connected to a mounting plate (79), and the movable platform (602) is fixedly mounted on the surface of the mounting plate (79).

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