Anti-falling auxiliary manipulator for lifting platform

Abstract

The invention relates to the technical field of lifting platforms, in particular to an anti-falling auxiliary manipulator for a lifting platform, which comprises a ship body and an electric push rod II arranged in the ship body, and the upper end of the electric push rod II is fixedly connected with a lifting platform arranged in an up-down sliding manner. According to the anti-falling auxiliary mechanical arm for the lifting platform, when an airplane is parked and three sets of wheels of the airplane are all located above the balls, the airplane can move into the ship body, the airplane is prevented from deviating during lifting, and after the airplane moves into the ship body, through cooperation of the balls and friction gaskets, the anti-falling auxiliary mechanical arm is prevented from falling off. According to the anti-shaking mechanism, the aircraft is prevented from deviating in multiple directions in time, abrasion caused by friction or extrusion between an aircraft body and a fixing device due to frequent shaking is prevented, in the anti-shaking mechanism, a first electric push rod is used for replacing a pure mechanical structure to control rotation of a movable table, and the movable table can rotate along with the electric push rod only after a friction gasket deviates.

Description

Technical Field

[0001] The invention relates to the technical field of lifting platforms, and in particular to an anti-falling auxiliary manipulator for lifting platforms. Background Art

[0002] In current large ships with aircraft mooring, aircraft are usually moored on the hull's plywood. Due to the limited area of ​​the plywood and the greater risk of being exposed when moored, the aircraft needs to be stored inside the hull. In the prior art, the platforms of most cargo loading and unloading elevators on ships generally have only two entry and exit directions. When the aircraft needs to enter the platform of the cargo loading and unloading elevator on the ship, it needs to move to the front or rear of the elevator and align it, and then drive into the elevator. When the aircraft enters the elevator platform, the alignment process will consume a lot of time.

[0003] As in the invention with publication number CN114179973A, an aircraft can enter the platform assembly 2 from the left, right or front directions. When the two lifting ropes 33 connected to the lifting platform 21 are disconnected, the lifting platform 21 falls freely, and the damping spring can provide a buffer for the lifting platform 21, thereby minimizing damage to the platform assembly and the cargo or equipment on the lifting platform 21.

[0004] However, in the above invention, the aircraft cannot enter from all directions when entering, and it still takes a certain amount of time to align, which reduces work efficiency. In addition, the staff needs to check the aircraft after entering to ensure that the aircraft is completely parked on the platform of the elevator to prevent part of the fuselage from being located outside the platform and tilting when the elevator platform is raised or lowered. In addition, the ship will shake frequently on the water, and the aircraft will move due to inertia after being fixed by ropes or other binding belts, causing friction or extrusion between the fuselage and the fixing device, which may cause certain wear and tear. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an anti-fall auxiliary manipulator for a lifting platform.

[0006] The present invention adopts the following technical scheme: an anti-fall auxiliary manipulator for a lifting platform, comprising a hull and two electric push rods arranged in the hull, wherein the upper end of the two electric push rods is fixedly connected to a lifting platform arranged to slide up and down, and further comprising:

[0007] A manipulator body, used to move up and down and turn the aircraft placed on the manipulator body, wherein the manipulator body is arranged in the hull;

[0008] An anti-drift mechanism, used to prevent a portion of the body from being located outside the platform and tilting, the anti-drift mechanism being arranged in the manipulator body;

[0009] And an anti-sway mechanism is used to prevent frequent shaking from causing wear to the body, and the anti-sway mechanism is arranged in the manipulator body.

[0010] As a further description of the above technical solution: the robot body includes a lifting platform, a motor is fixedly connected to the bottom of the inner cavity of the lifting platform, a plug column is fixedly connected to the output end of the motor, and a bearing plate is sleeved on the upper and lower outer sides of the upper end of the plug column, a connecting disk is provided on the outer side of the bottom end of the bearing plate, the bearing plate is rotatably arranged in the connecting disk, the bottom end of the connecting disk is fixed to the lifting platform, an air pump is connected between the upper end of the connecting disk and the bearing plate, a hinged ball is movably embedded in the center of the upper end of the bearing plate, the upper end of the hinged ball is connected to a rotating plate, a ball is movably provided on the upper end of the rotating plate, and the upper end of the ball extends to the upper side of the rotating plate.

[0011] As a further description of the above technical solution: the anti-deviation mechanism includes a limit rod which is horizontally movably inserted into the two opposite outer walls of the lifting platform, and a spring 1 is fixedly connected between one side of the bottom end of the limit rod and the lifting platform, the end of the limit rod close to the rotating plate is in contact with a squeezing frame, and the squeezing frame is horizontally movably inserted in the rotating plate, a spring 2 is fixedly connected between the upper side wall of the squeezing frame and the rotating plate, the upper end of the spring 2 is in contact with a squeezing block, and the upper end of the squeezing block is fixedly connected to the moving platform.

[0012] As a further description of the above technical solution: the anti-sway mechanism includes a friction gasket slidably arranged in the moving platform, an electric push rod 1 is arranged at the four corners of the bottom end of the moving platform, one side of the electric push rod 1 is located at the bottom end of the rotating plate and is fixedly connected to a trigger sleeve block, a trigger rod is movably inserted in the trigger sleeve block, and a conductive block 2 is arranged on one side of the bottom end of the trigger rod, a conductive block 1 is arranged on the side of the inner wall of the trigger sleeve block close to the conductive block 2, the upper end of the trigger rod is movably inserted in the moving platform, a spring 3 is fixedly connected between the side wall of the upper end of the trigger rod and the moving platform, U-shaped extrusion rods are fixedly connected on the four side walls of the friction gasket in the moving platform, the upper end of the trigger rod is movably inserted in the U-shaped extrusion rod, and an extrusion connecting block is fixedly connected to one end of the side wall of the friction gasket close to the trigger rod.

[0013] As a further description of the above technical solution: a plurality of the balls are arranged at equal intervals along the length and width of the lifting platform, the distances from the outermost balls on each side to the side of the lifting platform are equal, a plurality of the balls are located at the center of the lifting platform, and the distances between adjacent balls are less than the thickness of the aircraft wheels.

[0014] As a further description of the above technical solution: the upper end of the friction gasket and the outer wall of the ball are both provided with a material with a large friction coefficient.

[0015] As a further description of the above technical solution: two conductive blocks 1 are provided in each of the trigger sleeve blocks, and the two conductive blocks 1 are arranged on the upper and lower sides of the conductive block 2. A switch for controlling the up and down movement of the electric push rod 1 is provided in the trigger sleeve block. The conductive block 1 is connected to one pole of the switch, and the conductive block 2 is connected to the other pole of the switch. The larger the contact area between the conductive block 1 and the conductive block 2, the larger the current, and at this time, the switch can control the electric push rod 1 to move up and down a larger distance.

[0016] As a further description of the above technical solution: the upper and lower opposite sides of the upper end of the trigger rod are both provided with inclined surfaces.

[0017] The present invention provides an anti-fall auxiliary manipulator for a lifting platform through improvement, which has the following improvements and advantages compared with the prior art:

[0018] First, when the aircraft is fixed to the turntable by straps and moved into the hull, if the aircraft moves to any side, the ball will rotate, thereby moving the friction pad in the opposite direction through friction, and the end of the moving platform close to the aircraft offset direction will tilt upward. The moving platform can rotate adaptively, and the greater the distance the trigger rod moves, the greater the contact area between the conductive block 1 and the conductive block 2, the greater the current, and the greater the distance the switch can control the electric push rod 1 to move up and down, thereby timely preventing the aircraft from offsetting in multiple directions and preventing frequent shaking, which will cause friction or extrusion between the fuselage and the fixing device and cause wear;

[0019] Second, when parking the aircraft, since there are no baffles placed around the lifting platform and the turntable, the electric push rod 2 is moved up and down, so that the aircraft can be parked on the upper side of the ball bearing on the turntable from all directions around, and it is not necessary to fully align before driving in, which improves work efficiency. If the three sets of wheels of the aircraft are not all above the ball bearing, the aircraft will not move downward to prevent the aircraft from deviating during lifting and lowering. If the three sets of wheels of the aircraft are all above the ball bearing, the ball bearing is completely pressed downward at this time, and the limit rod is detached from the hull, so that the aircraft can be moved downward through the electric push rod 2. After the aircraft is driven in, there is no need for the staff to check it again, which further improves the overall efficiency.

[0020] Third: Using an electric push rod instead of a pure mechanical structure to control the rotation of the mobile platform can prevent the mobile platform from rotating at the beginning due to the shift of the center of gravity when the aircraft enters from any angle. The mobile platform will only rotate after the friction pad shifts;

[0021] To summarize, when the aircraft is parked, the aircraft can only move into the hull when all three sets of wheels are above the ball bearings to prevent the aircraft from shifting during taking off and landing. After the aircraft moves into the hull, the cooperation of the ball bearings and the friction pads can timely prevent the aircraft from shifting in multiple directions, and prevent frequent shaking, which causes friction or extrusion between the fuselage and the fixing device and causes wear. In the anti-sway mechanism, an electric push rod is used instead of a pure mechanical structure to control the rotation of the moving platform. The moving platform will only rotate after the friction pad is shifted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0023] Figure 1 A schematic diagram of the structure of an anti-fall auxiliary manipulator for a lifting platform provided in an embodiment of the present invention;

[0024] Figure 2 A three-dimensional cross-sectional view of a lifting platform provided in an embodiment of the present invention;

[0025] Figure 3 A three-dimensional cross-sectional view of a rotating plate provided in an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of a structure in which a moving platform and a carrying plate are separated according to an embodiment of the present invention;

[0027] Figure 5 A partial cross-sectional view of a mobile station provided by an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the structure of a U-shaped extrusion rod provided in an embodiment of the present invention;

[0029] Figure 7 for Figure 3 The enlarged view of point A in the middle;

[0030] Figure 8 for Figure 5 Enlarged view of point B in the middle.

[0031] In the figure: 1. hull; 2. manipulator body; 21. lifting platform; 22. rotating plate; 23. ball bearing; 24. connecting plate; 25. motor; 26. air pump; 27. load-bearing plate; 28. anti-drift mechanism; 281. limit rod; 282. spring one; 283. squeeze frame; 284. spring two; 285. squeeze block; 29. ​​anti-sway mechanism; 291. friction gasket; 292. moving platform; 293. trigger sleeve block; 294. electric push rod one; 295. trigger rod; 296. conductive block one; 297. conductive block two; 298. U-shaped squeeze rod; 299. squeeze connecting block; 2910. spring three; 210. plug column; 211. hinged ball; 3. electric push rod two. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below with reference to specific diagrams. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0033] See also Figure 1 - Figure 8 The embodiment of the present invention provides a technical solution: an anti-fall auxiliary manipulator for a lifting platform, comprising a hull 1 and an electric push rod 2 3 arranged in the hull 1, the upper end of the electric push rod 2 3 is fixedly connected to a lifting platform 21 arranged to slide up and down, and further comprising:

[0034] A manipulator body 2 is used to move the aircraft placed on the manipulator body 2 up and down and turn the aircraft, and the manipulator body 2 is arranged in the hull 1;

[0035] An anti-drift mechanism 28, used to prevent a portion of the body from being located outside the platform and tilting, the anti-drift mechanism 28 is disposed in the manipulator body 2;

[0036] And the anti-sway mechanism 29 is used to prevent frequent shaking from causing wear to the machine body. The anti-sway mechanism 29 is arranged in the manipulator body 2.

[0037] The robot body 2 includes a lifting platform 21, a motor 25 is fixedly connected to the bottom of the inner cavity of the lifting platform 21, a plug column 210 is fixedly connected to the output end of the motor 25, and a supporting plate 27 is sleeved on the upper and lower outer sides of the upper end of the plug column 210, a connecting disk 24 is provided on the outer side of the bottom end of the supporting plate 27, the supporting plate 27 is rotatably set in the connecting disk 24, the bottom end of the connecting disk 24 is fixed to the lifting platform 21, an air pump 26 is connected between the upper end of the connecting disk 24 and the supporting plate 27, a hinge ball 211 is movably embedded in the center of the upper end of the supporting plate 27, the upper end of the hinge ball 211 is connected to a rotating plate 22, a ball 23 is movably provided on the upper end of the rotating plate 22, and the upper end of the ball 23 extends to the upper side of the rotating plate 22.

[0038] Specifically, when parking the aircraft, since there are no baffles placed on the sides of the lifting platform 21 and the rotating plate 22, the electric push rod 23 is moved up and down, so that the aircraft can be parked on the upper side of the ball 23 on the rotating plate 22 from all directions around, and it is not necessary to fully align before driving in, which improves work efficiency. If the three sets of wheels of the aircraft are not all located above the ball 23, the aircraft will not move downward, preventing the aircraft from deviating during lifting and lowering. If the three sets of wheels of the aircraft are all located above the ball 23, the ball 23 is completely pressed downward at this time, and the limit rod 281 is disengaged from the hull 1, so that the aircraft can be moved downward by the electric push rod 23. After the aircraft is driven in, there is no need for the staff to check it again, which further improves the overall efficiency.

[0039] When the aircraft is fixed to the rotating plate 22 by means of straps and the like and moved into the hull 1, if the aircraft moves to any side, the ball 23 will rotate, thereby moving the friction pad 291 in the opposite direction through friction, and the end of the moving platform 292 close to the aircraft deviation direction will tilt upward, and the moving platform 292 can rotate adaptively, and the greater the distance the trigger rod 295 moves, the greater the contact area between the conductive block 1 296 and the conductive block 2 297, the greater the current, and the greater the distance the switch can control the electric push rod 1 294 to move up and down, thereby timely preventing the aircraft from deviating in multiple directions and preventing frequent shaking, which will cause friction or extrusion between the fuselage and the fixing device to cause wear;

[0040] Using an electric push rod 294 instead of a pure mechanical structure to control the rotation of the moving platform 292 can prevent the moving platform 292 from rotating at the beginning due to the shift of the center of gravity when the aircraft enters from any angle. The moving platform 292 will only rotate after the friction pad 291 shifts.

[0041] In another embodiment provided by the present invention, the anti-deviation mechanism 28 includes a limit rod 281 which is horizontally movably inserted into two opposite outer walls of the lifting platform 21, and a spring 1 282 is fixedly connected between one side of the bottom end of the limit rod 281 and the lifting platform 21, and one end of the limit rod 281 close to the rotating plate 22 abuts against a squeezing frame 283, and the squeezing frame 283 is horizontally movably inserted in the rotating plate 22, a spring 284 is fixedly connected between the upper side wall of the squeezing frame 283 and the rotating plate 22, the upper end of the spring 284 abuts against a squeezing block 285, and the upper end of the squeezing block 285 is fixedly connected to a moving platform 292.

[0042] Specifically, when parking the aircraft, since there are no baffles placed on the sides of the lifting platform 21 and the turntable 22, the electric push rod 23 is moved up and down, so that the aircraft can be parked on the upper side of the ball 23 on the turntable 22 from all directions on all sides, and it is not necessary to fully align the aircraft before driving in, which improves work efficiency. If the three sets of wheels of the aircraft are not all located above the ball 23, the aircraft will not move downward, preventing the aircraft from shifting during lifting and lowering. If the three sets of wheels of the aircraft are all located above the ball 23, the ball 23 is completely pressed downward at this time, and the limit rod 281 is disengaged from the hull 1, so that the aircraft can be moved downward by the electric push rod 23. After the aircraft drives in, there is no need for staff to check it again, further improving the overall efficiency.

[0043] In another embodiment provided by the present invention, the anti-sway mechanism 29 includes a friction pad 291 slidably arranged in a moving platform 292, and electric push rods 294 are arranged at the four corners of the bottom end of the moving platform 292. A trigger sleeve 293 is fixedly connected to the bottom end of the rotating plate 22 on one side of the electric push rod 294. A trigger rod 295 is inserted in the trigger sleeve 293 for upward and downward movement, and a conductive block 297 is arranged on one side of the bottom end of the trigger rod 295. The inner wall of the trigger sleeve 293 is close to the conductive block. A conductive block 296 is provided on one side of the second 297, and the upper end of the trigger rod 295 is movably inserted in the moving platform 292. A spring 2910 is fixedly connected between the upper end side wall of the trigger rod 295 and the moving platform 292. U-shaped extrusion rods 298 are fixedly connected to the four side walls of the friction gasket 291 in the moving platform 292. The upper end of the trigger rod 295 is movably inserted in the U-shaped extrusion rod 298, and an extrusion connecting block 299 is fixedly connected to one end of the side wall of the friction gasket 291 close to the trigger rod 295.

[0044] The upper end of the friction pad 291 and the outer wall of the ball 23 are both made of a material with a large friction coefficient.

[0045] Two conductive blocks 1 296 are provided in each trigger sleeve 293, and the two conductive blocks 1 296 are arranged on the upper and lower sides of the conductive block 2 297. A switch for controlling the up and down movement of the electric push rod 1 294 is provided in the trigger sleeve 293. The conductive block 1 296 is connected to one pole of the switch, and the conductive block 2 297 is connected to the other pole of the switch. The larger the contact area between the conductive block 1 296 and the conductive block 2 297, the larger the current, and at this time, the switch can control the electric push rod 1 294 to move up and down a larger distance.

[0046] The upper and lower opposite sides of the upper end of the trigger rod 295 are both provided with inclined surfaces.

[0047] Specifically, after the aircraft is fixed to the turn plate 22 by straps or the like and moved into the hull 1, if the aircraft moves to any side, the ball 23 will rotate, thereby moving the friction pad 291 in the opposite direction through friction, and the end of the moving platform 292 close to the aircraft deviation direction is tilted upward, and the moving platform 292 can rotate adaptively, and the greater the distance the trigger rod 295 moves, the greater the contact area between the conductive block 1 296 and the conductive block 2 297, and the greater the current, the greater the distance the switch can control the electric push rod 1 294 to move up and down, thereby timely preventing the aircraft from deviating in multiple directions and preventing frequent shaking, which causes friction or extrusion between the fuselage and the fixing device and causes wear.

[0048] In another embodiment provided by the present invention, a plurality of balls 23 are arranged at equal intervals along the length and width directions of the lifting platform 21, the distances from the outermost balls 23 on each side to the side of the lifting platform 21 are equal, a plurality of balls 23 are located at the center of the lifting platform 21, and the distances between adjacent balls 23 are less than the thickness of the aircraft wheel.

[0049] Specifically, the distance between adjacent balls 23 is smaller than the thickness of the aircraft wheel, which can ensure that the aircraft wheel can be pressed on the balls 23 .

[0050] Working principle: When parking the aircraft, since there are no baffles placed around the lifting platform 21 and the rotating plate 22, the electric push rod 284 is moved up and down, so that the aircraft can be parked on the upper side of the ball 23 on the rotating plate 22 from all directions. When the lifting platform 21 is at the top, if the three sets of wheels of the aircraft are not all located above the ball 23, it means that the edge of the aircraft is located outside the lifting platform 21. At this time, the electric push rod 284 is started. Since the weight of the aircraft pressing on the ball 23 is not enough, the spring 284 will not be completely compressed, and the ball 23 cannot be completely pressed downward, so the end of the limit rod 281 away from the rotating plate 22 The aircraft is still in the state of being inserted into the hull 1, and the aircraft will not move downward, preventing the aircraft from deflecting during lifting and lowering. If the three sets of wheels of the aircraft are all located above the ball bearings 23, the entire weight of the aircraft is located on the ball bearings 23. At this time, the entire weight of the aircraft is sufficient to completely press the ball bearings 23 downward, and the ball bearings 23 and the moving platform 292 both move downward, so that the squeezing block 285 moves the squeezing frame 283 toward the inside of the rotating plate 22, so that the limiting rod 281 moves in the opposite direction of the squeezing frame 283 under the action of the spring 1 282, so that the limiting rod 281 is disengaged from the hull 1, so that the aircraft can move downward through the electric push rod 2 3;

[0051] After the aircraft is fixed to the rotating plate 22 by means of straps and the like and moved into the hull 1, the aircraft wheels are locked, and then the aircraft is transported by ship. After the aircraft wheels press the ball bearings 23 downward, the top of the ball bearings 23 contacts the wheels. During transportation, if the aircraft moves to any side, the ball bearings 23 rotate, thereby moving the friction pad 291 in the opposite direction through friction. When the friction pad 291 moves, it drives the U-shaped extrusion rod 298 to move. The U-shaped extrusion rod 298 close to the deviation direction of the aircraft presses the trigger rod 295 downward, thereby connecting the conductive block 297 to the conductive block 1 296 on the lower side, so that the electric The push rod 1 294 extends downward, and the bottom end of the push rod 1 294 squeezes the bearing plate 27, so that the end of the moving platform 292 close to the deviation direction of the aircraft is tilted upward, and the push rod 1 294 at the opposite end is extended and retracted upward. The moving platform 292 can rotate adaptively, and the greater the distance the trigger rod 295 moves, the greater the contact area between the conductive block 1 296 and the conductive block 297, and the greater the current. The switch can control the electric push rod 1 294 to move up and down. The greater the distance, the greater the distance, which can prevent the aircraft from deviating in multiple directions in time and prevent frequent shaking, which causes friction or extrusion between the fuselage and the fixing device and causes wear.

[0052] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the description in the specification are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An anti-fall auxiliary manipulator for a lifting platform, comprising a hull (1) and an electric push rod (3) arranged in the hull (1), wherein the upper end of the electric push rod (3) is fixedly connected to a lifting platform (21) arranged to slide up and down, characterized in that: Also includes: A manipulator body (2) is used to move an aircraft placed on the manipulator body (2) up and down and to turn the aircraft, wherein the manipulator body (2) is arranged inside the hull (1); An anti-drift mechanism (28) is used to prevent a portion of the machine body from being located outside the platform and thus tilting, and the anti-drift mechanism (28) is arranged in the manipulator body (2); And an anti-sway mechanism (29) is used to prevent frequent shaking from causing wear on the machine body, and the anti-sway mechanism (29) is arranged in the manipulator body (2).

2. The anti-fall auxiliary manipulator for a lifting platform according to claim 1, characterized in that: The robot body (2) includes a lifting platform (21), a motor (25) is fixedly connected to the bottom of the inner cavity of the lifting platform (21), a plug column (210) is fixedly connected to the output end of the motor (25), and a bearing plate (27) is sleeved on the upper and lower outer sides of the upper end of the plug column (210), a connecting disk (24) is provided on the outer side of the bottom end of the bearing plate (27), the bearing plate (27) is rotatably arranged in the connecting disk (24), the bottom end of the connecting disk (24) is fixedly connected to the lifting platform (21), an air pump (26) is connected between the upper end of the connecting disk (24) and the bearing plate (27), a hinge ball (211) is movably embedded at the center of the upper end of the bearing plate (27), the upper end of the hinge ball (211) is connected to a rotating plate (22), a ball (23) is movably provided on the upper end of the rotating plate (22), and the upper end of the ball (23) extends to the upper side of the rotating plate (22).

3. The anti-fall auxiliary manipulator for a lifting platform according to claim 2, characterized in that: The anti-deviating mechanism (28) comprises a limit rod (281) horizontally movably inserted into two opposite outer walls of the lifting platform (21), and a spring 1 (282) is fixedly connected between one side of the bottom end of the limit rod (281) and the lifting platform (21), an end of the limit rod (281) close to the rotating plate (22) abuts against a squeeze frame (283), and the squeeze frame (283) is horizontally movably inserted in the rotating plate (22), a spring 2 (284) is fixedly connected between the side wall of the upper end of the squeeze frame (283) and the rotating plate (22), the upper end of the spring 2 (284) abuts against a squeeze block (285), and the upper end of the squeeze block (285) is fixedly connected to a moving platform (292).

4. The anti-fall auxiliary manipulator for a lifting platform according to claim 3, characterized in that: The anti-sway mechanism (29) comprises a friction pad (291) slidably arranged in a moving platform (292), an electric push rod (294) is arranged at each of the four corners of the bottom end of the moving platform (292), a trigger sleeve (293) is fixedly connected to one side of the electric push rod (294) at the bottom end of the rotating plate (22), a trigger rod (295) is inserted in the trigger sleeve (293) so as to be movable up and down, and a conductive block (297) is arranged at one side of the bottom end of the trigger rod (295), and a side of the inner wall of the trigger sleeve (293) close to the conductive block (297) is provided. A conductive block (296) is provided, the upper end of the trigger rod (295) is movably inserted in the moving platform (292), a spring (2910) is fixedly connected between the upper side wall of the trigger rod (295) and the moving platform (292), a U-shaped extrusion rod (298) is fixedly connected to the four side walls of the friction pad (291) in the moving platform (292), the upper end of the trigger rod (295) is movably inserted in the U-shaped extrusion rod (298), and an extrusion connecting block (299) is fixedly connected to one end of the side wall of the friction pad (291) close to the trigger rod (295).

5. The anti-fall auxiliary manipulator for a lifting platform according to claim 2, characterized in that: A plurality of the balls (23) are evenly spaced along the length and width of the lifting platform (21); the distances between the balls (23) at the edge of each side and the side of the lifting platform (21) are equal; a plurality of the balls (23) are located at the center of the lifting platform (21); and the distance between adjacent balls (23) is less than the thickness of the aircraft wheel.

6. The anti-fall auxiliary manipulator for a lifting platform according to claim 4, characterized in that: The upper end of the friction pad (291) and the outer wall of the ball (23) are both provided with a material having a relatively large friction coefficient.

7. The anti-fall auxiliary manipulator for a lifting platform according to claim 4, characterized in that: Each of the trigger sleeve blocks (293) is provided with two conductive blocks 1 (296), and the two conductive blocks 1 (296) are arranged on the upper and lower sides of the conductive block 2 (297). A switch for controlling the upward and downward movement of the electric push rod 1 (294) is provided in the trigger sleeve block (293). The conductive block 1 (296) is connected to one pole of the switch, and the conductive block 2 (297) is connected to the other pole of the switch. The larger the contact area between the conductive block 1 (296) and the conductive block 2 (297), the larger the current. At this time, the switch can control the electric push rod 1 (294) to move upward and downward to a greater distance.

8. The anti-fall auxiliary manipulator for a lifting platform according to claim 4, characterized in that: The upper and lower opposite sides of the upper end of the trigger rod (295) are both provided with inclined surfaces.

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