An automatic unloading lift for cargo transportation

Abstract

The present invention discloses an automatic unloading lift for cargo transportation, which relates to the technical field of automatic unloading lifts, including a placement seat and a connector, wherein the placement seat begins to have a cavity inside, and a horizontal lifting component is arranged inside the placement seat. When in use, the present invention utilizes a three-surrounding fixing method to protect the tile box, firstly utilizes a horizontal moving component to move the symmetrical support seat to the bottom of the tile box, and completes lifting and supporting, at this time, the tile box seals multiple groups of evenly arranged support nozzles on the top of the support seat, and at the same time, cooperates with the lifting component to move the second moving plate with it, thereby driving the piston component to work, and this component plays a role in charging and discharging air for the equipment, so that when the support seat is moved, the suction effect of the piston component is used, so that the uniform support nozzles at the bottom firmly suck the tile box, completing simple adsorption and fixing, improving the stability during unloading, and the support nozzles also play a buffering effect.

Description

Technical Field

[0001] The invention relates to the technical field of automatic unloading elevators, in particular to an automatic unloading elevator for cargo transportation. Background Art

[0002] The automatic unloading elevator currently passes the items on the transport equipment through the elevator to complete the automatic unloading task. It is used in the fields of construction, aviation and medical care. Now let's briefly talk about its application in the construction field, especially in the transportation of tiles. Due to the characteristics of tiles themselves, they are fragile, so when loading and unloading, elevators are used to slowly transport them;

[0003] At present, when loading and unloading a whole box of tiles, most of them use forklifts to move them, and cooperate with the function of clamping components to clamp the protective pads supporting the bottom of the tile box, and then use the telescopic component to pull the tile box onto the forklift to complete the unloading. In this process, in order to prevent tipping, manual support is generally used, and mechanical means are also used, such as cylinders driving splints to fix the tile box to complete the work.

[0004] However, with the above structure, support is first performed manually, which greatly increases the overall labor cost and reduces the overall work efficiency. When the cylinder is used to drive the splint to fix and support the tile box, it is only supported after it falls on the mobile rack. During the unloading process, it cannot be supported. There is also a risk of tipping over in this process. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide an automatic unloading lift for cargo transportation to solve the problem that manual support is generally used in the prior art, which greatly increases the overall labor cost and reduces the overall work efficiency. When a cylinder is used to drive the splint to fix and support the tile box, it only supports it after it falls on the mobile rack, and cannot follow the support during the unloading process, and there is also a technical problem of the risk of tipping during this process.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic unloading elevator for cargo transportation, comprising a placing seat and a connecting piece, a cavity is opened inside the placing seat, a horizontal lifting component is arranged inside the placing seat, a first movable plate is arranged at the output end of the horizontal lifting component, a support seat sliding with the placing seat is symmetrically connected to the outer side of the first movable plate, a plurality of groups of supporting nozzles are evenly arranged on the top of the supporting seat, a delivery pipe cooperating with the supporting nozzle is arranged inside the supporting seat, two groups of piston assemblies are symmetrically arranged inside the cavity, a lifting component cooperating with the horizontal lifting component is arranged inside the cavity, and the output end of the lifting component and the piston assembly are connected to each other, a connecting frame is symmetrically arranged on the outer side of the placing seat, a buffer assembly is arranged on the inner side of the two groups of connecting frames, and a first connecting assembly and a second connecting assembly are respectively arranged between the piston assembly and the delivery pipe and the buffer assembly.

[0007] By adopting the above technical scheme, the tile box is protected by a three-surround fixing method, and during the unloading process, the horizontal moving component is first used to move the symmetrical support seat to the bottom of the tile box, and lift and support it. At this time, the tile box seals multiple groups of evenly arranged support nozzles on the top of the support seat, and then the support seat is retracted by the horizontal moving component. At the same time, the second moving plate is moved with the help of the lifting component to drive the piston component to work, and this component plays an inflating and deflating effect on the equipment. At this point, when the support seat is moved, the suction effect of the piston component is used to make the uniform support nozzles at the bottom firmly suck the tile box, complete simple adsorption and fixation, improve stability during unloading, and the support nozzles also play a buffering effect, thereby reducing the risk of breaking the binding belt caused by shaking of the tile box during movement, thereby improving the protection of the tile box.

[0008] The present invention is further configured such that the horizontal lifting component includes a motor, a rotating shaft and a first screw rod, the motor is mounted on the outer bottom of the placement seat, a rotating shaft is provided at the output end of the motor, and a first screw rod matching with the first movable plate is provided at one end of the rotating shaft.

[0009] By adopting the above technical solution, the function of the motor is utilized to provide power for the equipment, and the function of the rotating shaft is utilized to drive the first screw to rotate so as to complete subsequent work.

[0010] The present invention is further configured such that the lifting assembly includes a worm wheel, a worm, a second screw and a second movable plate, the second screw is arranged inside the cavity, the worm is arranged outside the second screw, and the worm wheel meshing with the worm is arranged outside the rotating shaft.

[0011] By adopting the above technical solution, the worm wheel and the worm are utilized to drive the second screw to rotate so as to complete the work.

[0012] The present invention is further configured as follows: the piston assembly includes a first guide cylinder, a second guide cylinder, a movable column, a piston, and a first parallel tube and a second parallel tube. The first guide cylinder and the second guide cylinder are arranged side by side at one end of the bottom of the cavity, and the first parallel tube and the second parallel tube are respectively connected between the upper and lower ends of the first guide cylinder and the second guide cylinder. The interiors of the first guide cylinder and the second guide cylinder are both movably connected with movable columns, and one end of the movable column is provided with a piston that cooperates with the inner walls of the first guide cylinder and the second guide cylinder, and the other end of the movable column is connected to the second movable plate.

[0013] By adopting the above technical scheme, the functions of the first guide cylinder and the second guide cylinder are utilized to facilitate the use in conjunction with the moving column and the piston, and then the functions of the first parallel connecting tube and the second parallel connecting tube are utilized to facilitate the connection between the first guide cylinder and the second guide cylinder to form a whole, so that the equipment can work and the normal use of the equipment is guaranteed.

[0014] The present invention is further configured as follows: the buffer component includes a collecting bag, a pressure valve, a second connecting tube, a supporting air bag, and a first control valve and a second control valve; a plurality of supporting air bags are evenly arranged on the inner side of the connecting frame, and the supporting air bags are connected to each other through the second connecting tube; the collecting bag and the second connecting tube are connected through a pressure valve, and the collecting bag is connected to one end of the second connecting component through the first control valve; a second control valve connected to the collecting bag is provided on the outer side of the collecting bag.

[0015] By adopting the above technical solution, the function of the collecting bag is utilized to facilitate the collection of gas. When all the gas enters, it is discharged into the supporting air bag to drive the supporting buffering effect.

[0016] The present invention is further configured such that the first connecting component includes a first connecting pipe and a spiral bellows, a spiral bellows is provided at one end of the delivery pipe, and the spiral bellows and the first parallel pipe are connected to each other through the first connecting pipe.

[0017] By adopting the above technical solution, the communication between the piston assembly and the delivery pipe is facilitated.

[0018] The present invention is further configured such that the second connecting component includes a connecting pipe, the other end of the collecting bag is connected to the connecting pipe through a control valve, and the other end of the connecting pipe is connected to the second parallel pipe.

[0019] By adopting the above technical solution, the communication between the piston assembly and the buffer assembly is facilitated.

[0020] The present invention is further configured such that the other end of the delivery pipe is connected to an extension pipe extending to the outside of the placement seat, and an electromagnetic valve is arranged on the outside of the extension pipe.

[0021] By adopting the above technical solution, it is easy to ensure that the negative pressure inside the conveying pipe is kept constant when the support seat is retracted, so as to facilitate subsequent work.

[0022] The present invention is further configured such that a moving groove matching with the supporting seat is symmetrically provided on the inner top of the placing seat.

[0023] By adopting the above technical solution, the movement of the support seat is facilitated so as to complete subsequent work.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] 1. When the present invention is in use, a three-surrounding fixing method is used to protect the tile box, and during the unloading process, the horizontal moving component is first used to move the symmetrical support seat to the bottom of the tile box, and lift and support are completed. At this time, the tile box seals multiple groups of evenly arranged support nozzles on the top of the support seat, and then the horizontal moving component is used to retract the support seat. At the same time, the lifting component is used to move the second moving plate to drive the piston component to work, and this component plays an inflating and deflating effect on the equipment. At this point, when the support seat is moved, the suction effect of the piston component is used to make the uniform support nozzles at the bottom firmly suck the tile box, complete simple adsorption and fixation, improve stability during unloading, and the support nozzles also play a buffering effect, thereby reducing the risk of breaking the binding belt caused by shaking of the tile box during movement, thereby improving the protection of the tile box.

[0026] 2. The present invention also has multiple groups of evenly distributed support air bags on the side walls of the placement seat. When in use, the piston assembly needs to deflate during the suction process, and cooperate with the collecting bag to allow the gas released by the piston assembly to enter the support air bag along the collecting bag, so that the support air bag slowly expands. During the expansion process, the support air bag contacts the tile box that is moving toward one side of the placement seat. After that, the support air bag is always in contact with the outside of the tile box, and cooperates with the action of the pressure valve to allow the gas in the support air bag to flow back to the collecting bag, so as to ensure maximum buffering of the support air bag. After moving to the support seat, the tile box is protected on the side to prevent it from tipping over, thereby protecting the support air bag and providing maximum protection for the tile box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 The enlarged view of point A in the middle;

[0029] Figure 3 It is a schematic diagram of the side section structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the front cross-section structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the cutaway structure of the internal part of the present invention;

[0032] Figure 6 It is a partial structural schematic diagram of the present invention;

[0033] Figure 7 It is a schematic diagram of the outer structure of the present invention;

[0034] Figure 8 It is a schematic diagram of the outer structure from another viewing angle of the present invention.

[0035] In the figure: 1. placement seat; 2. motor; 3. rotating shaft; 4. first screw; 5. worm gear; 6. first movable plate; 7. support seat; 8. supporting nozzle; 9. delivery pipe; 10. extension pipe; 11. solenoid valve; 12. spiral bellows; 13. first connecting pipe; 14. first parallel pipe; 15. second parallel pipe; 16. connecting pipe; 17. collecting bag; 18. pressure valve; 19. second connecting pipe; 20. supporting air bag; 21. first guide cylinder; 22. second guide cylinder; 23. moving column; 24. second movable plate; 25. piston; 26. cavity; 27. second screw; 28. worm; 29. ​​movable groove; 30. connecting piece; 31. connecting frame; 32. first control valve; 33. second control valve. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] The following describes an embodiment of the present invention based on its overall structure.

[0038] A lift with automatic unloading for cargo transportation, such as Figure 1-8As shown, it includes a placement seat 1 and a connecting piece 30, a cavity 26 is opened inside the placement seat 1, a horizontal lifting component is arranged inside the placement seat 1, a first movable plate 6 is arranged at the output end of the horizontal lifting component, and a support seat 7 sliding with the placement seat 1 is symmetrically connected to the outer side of the first movable plate 6, and a three-surrounding fixing method is used to protect the tile box, and in the unloading process, the horizontal moving component is first used to move the symmetrical support seat 7 to the bottom of the tile box, and lift and support are completed, at this time, the tile box seals multiple groups of evenly arranged support nozzles 8 on the top of the support seat 7, and then uses the effect of the horizontal moving component to retract the support seat 7, multiple groups of support nozzles 8 are evenly arranged on the top of the support seat 7, and the support seat 7 is provided with a conveying pipe 9 matching with the support nozzle 8, two groups of piston assemblies are symmetrically arranged inside the cavity 26, and the inside of the cavity 26 A lifting component is provided to cooperate with the horizontal lifting component, and the output end of the lifting component is connected to the piston component, and cooperates with the lifting component to move the second movable plate 24 to drive the piston component to work, and this component plays an inflation and deflation effect on the equipment. A connecting frame 31 is symmetrically provided on the outer side of the placement seat 1, and a buffer component is provided on the inner side of the two sets of connecting frames 31, and a first connecting component and a second connecting component are respectively provided between the piston component and the conveying pipe 9 and the buffer component. When the support seat 7 is moved, the suction effect of the piston component is used to make the uniform support nozzle 8 at the bottom firmly suck the tile box, complete simple adsorption and fixation, improve the stability during unloading, and the support nozzle 8 also plays a buffering effect, thereby reducing the risk of breaking the binding belt caused by shaking of the tile box during movement, thereby improving the protection of the tile box.

[0039] See also Figure 3 The horizontal transmission assembly includes a motor 2, a rotating shaft 3 and a first screw 4. The motor 2 is installed at the outer bottom of the placement seat 1. The output end of the motor 2 is provided with a rotating shaft 3. One end of the rotating shaft 3 is provided with a first screw 4 that cooperates with the first movable plate 6. The motor 2 is used to provide power for the equipment, and the rotating shaft 3 is used to drive the first screw 4 to rotate so as to complete subsequent work.

[0040] See also Figure 5 The lifting component includes a worm wheel 5, a worm 28, a second screw 27 and a second movable plate 24. The second screw 27 is arranged inside the cavity 26, and the worm 28 is arranged on the outside of the second screw 27. The worm wheel 5 meshing with the worm 28 is arranged on the outside of the rotating shaft 3. The worm wheel 5 and the worm 28 are used to drive the second screw 27 to rotate so as to complete the work.

[0041] See also Figure 3 and Figure 5The piston assembly includes a first guide cylinder 21, a second guide cylinder 22, a movable column 23, a piston 25, a first parallel pipe 14 and a second parallel pipe 15. The first guide cylinder 21 and the second guide cylinder 22 are arranged side by side at one end of the bottom of the cavity 26. The first guide cylinder 21 and the second guide cylinder 22 are used to cooperate with the movable column 23 and the piston 25. The first parallel pipe 14 and the second parallel pipe 15 are respectively connected between the upper and lower ends of the first guide cylinder 21 and the second guide cylinder 22. The interiors of the first guide cylinder 21 and the second guide cylinder 22 are movably connected with the movable column 23, and one end of the movable column 23 is provided with a piston 25 that matches the inner wall of the first guide cylinder 21 and the second guide cylinder 22. The other end of the movable column 23 is connected to the second movable plate 24. The first parallel pipe 14 and the second parallel pipe 15 are used to facilitate the connection between the first guide cylinder 21 and the second guide cylinder 22 to form a whole, so that the equipment can work and the normal use of the equipment is guaranteed.

[0042] See also Figure 1 The buffer component includes a collecting bag 17, a pressure valve 18, a second connecting pipe 19, a supporting air bag 20, and a first control valve 32 and a second control valve 33. A plurality of supporting air bags 20 are evenly arranged on the inner side of the connecting frame 31, and the supporting air bags 20 are connected through the second connecting pipe 19. The function of the collecting bag 17 is used to collect the gas. When all the gas enters, it drives the supporting buffering function in the discharge supporting air bag 20. The collecting bag 17 is connected to the second connecting pipe 19 through the pressure valve 18, and the collecting bag 17 is connected to one end of the second connecting component through the first control valve 32. The outer side of the collecting bag 17 is provided with a second control valve 33 connected thereto. The first control valve 32, the second control valve 33 and the pressure valve 18 are used to adjust the air pressure inside the collecting bag 17 and the supporting air bag 20, thereby ensuring the use of subsequent work.

[0043] See also Figure 2 The first connecting component includes a first connecting pipe 13 and a spiral bellows 12. The spiral bellows 12 is provided at one end of the delivery pipe 9. By utilizing the function of the spiral bellows 12, when the support seat 7 moves, the delivery pipe 9 follows the movement to avoid interference. The spiral bellows 12 and the first parallel pipe 14 are interconnected through the first connecting pipe 13, which facilitates the communication between the piston assembly and the delivery pipe 9.

[0044] See also Figure 1 The second connecting component includes a connecting pipe 16, the other end of the collecting bag 17 is connected to the connecting pipe 16 through a pressure valve 18, and the other end of the connecting pipe 16 is connected to the second parallel pipe 15 to facilitate the connection between the piston assembly and the buffer assembly.

[0045] See also Figure 2The other end of the delivery pipe 9 is connected to an extension pipe 10 extending to the outside of the placement seat 1. An electromagnetic valve 11 is arranged on the outside of the extension pipe 10 to ensure that the negative pressure inside the delivery pipe 9 is kept constant when the support seat 7 is retracted to facilitate subsequent work.

[0046] See also Figure 1 The top of the inner part of the placement seat 1 is symmetrically provided with a moving groove 29 that matches the support seat 7, so as to facilitate the movement of the support seat 7 to complete subsequent work.

[0047] The working principle of the present invention is: when in use, the output end of the external mobile mechanical arm is connected to the connecting member 30 in the device through bolts, so that the device can complete precise multi-directional movement under the action of the mobile mechanical arm;

[0048] When unloading, the mobile mechanical arm is used to move the device to the outside of the corresponding tile box, and then the horizontal moving component is started, specifically the motor 2 is started to drive the rotating shaft 3 and the first screw 4 to rotate. Since the first moving plate 6 is threadedly connected to the first screw 4, the first moving plate 6 is moved along the direction of the first screw 4, and the supporting seat 7 is moved together with it, and the spiral bellows 12 is used to make the conveying pipe 9 move synchronously along the supporting seat 7. At the same time, with the cooperation of the worm gear 5 and the worm 28, the second screw 27 is rotated. Since the second screw 27 is threadedly connected to the second moving plate 24, the second moving plate 24 is moved along the second screw 27 to The piston assembly is started, and the corresponding moving column 23 and the piston 25 are driven to move in the first guide cylinder 21 and the second guide cylinder 22. At this time, the first parallel pipe 14 is cooperated to make the gas in the first guide cylinder 21 and the second guide cylinder 22 be discharged into the first connecting pipe 13 at the same time, and finally enter the delivery pipe 9, and be discharged by the supporting nozzle 8, and the first guide cylinder 21 and the second guide cylinder 22 are another place, and the first control valve 32 and the second control valve 33 are started, and the pressure valve 18 is closed, and then the air goes along the second control valve 33 to the collecting bag 17, and is discharged into the connecting pipe 16, and finally enters the first guide cylinder 21 and the second guide cylinder 22 through the second parallel pipe 15, forming a cycle;

[0049] Next, when the support seat 7 fully supports the tile box, only the external mobile mechanical arm is used to move the placement seat 1 upward, so that the support seat 7 contacts and squeezes the tile box. (The role of the pressure sensor is used here. When the pressure between the support seat 7 and the tile box reaches the set value, the mobile mechanical arm can be controlled to stop running.) Then start the horizontal moving component and move the support seat 7 to the inside of the placement seat 1. At this time, the piston component works in the opposite direction and sucks air along the support nozzle 8. Because the support nozzle 8 is completely sealed by the tile box at this time, the tile box is firmly adsorbed on the support seat 7. When the support seat 7 continues to move, the negative pressure in the conveying pipe 9 rises, and the negative pressure exceeds the set value of the solenoid valve 11. The solenoid valve 11 slowly opens. At this time, the external gas slowly enters along the solenoid valve 11, causing the piston 25 to move upward so that the suction force generated is greater than the intake force of the gas entering after the solenoid valve 11 is opened, so that the inside of the conveying pipe 9 is always negative pressure, thereby completing the adsorption of the tile box, and cooperating with its gravity to complete the fixation;

[0050] At the same time, the piston assembly needs to be deflated during the inhalation process, and cooperates with the collecting bag 17 to allow the gas released by the piston assembly to enter the supporting air bag 20 along the collecting bag 17, so that the supporting air bag 20 is slowly propped up. During the propping up process, the slowly propped up supporting air bag 20 contacts the tile box that is moving toward one side of the placement seat 1, and then the supporting air bag 20 is always in contact with the outside of the tile box;

[0051] When the tile box shakes, the support airbag 20 at one end is squeezed. Initially, within the bearing range of the support airbag 20, the gas in the support airbag 20 does not flow out, and the support seat 7 still moves inward, thereby continuing to inflate the support airbag 20, so that the support airbag 20 continues to squeeze the tile box. When the air pressure in the support airbag 20 reaches a certain level, it is impossible to inflate the support airbag 20, and the tile box is optimally fixed at this time; if the support seat 7 has not yet fully entered the placement seat 1, and the support airbag 20 cannot be inflated at this time, the second control valve 33 is controlled to open, so that the support seat 7 is completely moved into the placement seat 1;

[0052] When the support seat 7 is completely inserted into the placement seat 1, the second control valve 33 and the first control valve 32 are closed to keep the air pressure in the support airbag 20 stable. Then, the device is moved by using an external mobile robot arm. During the movement, when the support airbag 20 is strongly squeezed, the squeezed support airbag 20 will transport the gas to the collecting bag 17 under the action of the pressure valve 18, and cooperate with the action of the pressure valve 18 to make the gas in the support airbag 20 flow back to the collecting bag 17. When the pressure on the outer surface of the support airbag 20 disappears, the gas in the collecting bag 17 flows back to the support airbag 20, so as to ensure maximum buffering of the support airbag, thereby protecting the support airbag and the tile box to the maximum extent.

[0053] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An automatic unloading lift for cargo transportation, comprising a placement seat (1) and a connecting member (30), characterized in that: The placement seat (1) has a cavity (26) formed inside, a horizontal lifting component is arranged inside the placement seat (1), a first movable plate (6) is arranged at the output end of the horizontal lifting component, the outer side of the first movable plate (6) is symmetrically connected to a support seat (7) that slides with the placement seat (1), a plurality of support nozzles (8) are evenly arranged on the top of the support seat (7), a delivery pipe (9) that matches with the support nozzle (8) is arranged inside the support seat (7), two groups of piston components are symmetrically arranged inside the cavity (26), a lifting component that matches with the horizontal lifting component is arranged inside the cavity (26), and the output end of the lifting component and the piston component are connected to each other, a connecting frame (31) is symmetrically arranged on the outer side of the placement seat (1), and a buffer component is arranged on the inner side of the two groups of connecting frames (31), and a first connecting component and a second connecting component are respectively arranged between the piston component and the delivery pipe (9) and the buffer component.

2. The automatic unloading lift for cargo transportation according to claim 1, characterized in that: The horizontal raising component comprises a motor (2), a rotating shaft (3) and a first screw rod (4); the motor (2) is mounted on the outer bottom of the placement seat (1); the output end of the motor (2) is provided with a rotating shaft (3); one end of the rotating shaft (3) is provided with a first screw rod (4) matched with a first movable plate (6).

3. The automatic unloading lift for cargo transportation according to claim 2, characterized in that: The lifting assembly comprises a worm wheel (5), a worm (28), a second screw (27) and a second movable plate (24); the second screw (27) is arranged inside the cavity (26); the worm (28) is arranged outside the second screw (27); and the worm wheel (5) meshing with the worm (28) is arranged outside the rotating shaft (3).

4. The automatic unloading lift for cargo transportation according to claim 1, characterized in that: The piston assembly comprises a first guide cylinder (21), a second guide cylinder (22), a movable column (23), a piston (25), and a first parallel tube (14) and a second parallel tube (15). The first guide cylinder (21) and the second guide cylinder (22) are arranged side by side at one end of the bottom of the cavity (26), and the first parallel tube (14) and the second parallel tube (15) are respectively connected between the upper and lower ends of the first guide cylinder (21) and the second guide cylinder (22). The interior of the first guide cylinder (21) and the second guide cylinder (22) are both movably connected with the movable column (23), and one end of the movable column (23) is provided with a piston (25) matched with the inner wall of the first guide cylinder (21) and the second guide cylinder (22), and the other end of the movable column (23) is connected to the second movable plate (24).

5. The automatic unloading lift for cargo transportation according to claim 4, characterized in that: The buffer component comprises a collecting bag (17), a pressure valve (18), a second connecting pipe (19), a supporting air bag (20), and a first control valve (32) and a second control valve (33); a plurality of supporting air bags (20) are evenly arranged on the inner side of the connecting frame (31), and the supporting air bags (20) are connected to each other through the second connecting pipe (19); the collecting bag (17) and the second connecting pipe (19) are connected to each other through the pressure valve (18), and the collecting bag (17) is connected to one end of the second connecting component through the first control valve (32); and a second control valve (33) connected to the collecting bag (17) is arranged on the outer side of the collecting bag (17).

6. The automatic unloading lift for cargo transportation according to claim 5, characterized in that: The first connecting component comprises a first connecting pipe (13) and a spiral corrugated pipe (12); one end of the delivery pipe (9) is provided with a spiral corrugated pipe (12), and the spiral corrugated pipe (12) and the first parallel pipe (14) are connected to each other through the first connecting pipe (13).

7. The automatic unloading lift for cargo transportation according to claim 6, characterized in that: The second connecting component comprises a connecting pipe (16), the other end of the collecting bag (17) is connected to the connecting pipe (16) via a pressure valve (18), and the other end of the connecting pipe (16) is connected to the second parallel pipe (15).

8. The automatic unloading lift for cargo transportation according to claim 1, characterized in that: The other end of the delivery pipe (9) is connected to an extension pipe (10) extending to the outside of the placement seat 1, and a solenoid valve (11) is arranged on the outside of the extension pipe (10).

9. The automatic unloading lift for cargo transportation according to claim 1, characterized in that: The top end of the interior of the placement seat (1) is symmetrically provided with a moving groove (29) that matches the support seat (7).

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