A hydraulic lifting platform for cabin cargo handling

Abstract

The present invention relates to the technical field of ground support facilities for civil aviation aircraft, and in particular to a hydraulic lifting platform for cabin cargo handling, comprising a base frame, a lifting assembly and a control unit disposed on the base frame, an upper support assembly for placing and transporting cargo disposed above the lifting assembly, the lifting assembly being capable of driving the upper support assembly to move up and down, a solar panel disposed on the upper support assembly, the lifting assembly being electrically connected to the control unit, the lifting assembly comprising a scissor-type lifting arm assembly and a hydraulic push rod for driving the scissor-type lifting arm assembly up and down, the upper support assembly being a fence-type structure. The present invention solves the problems of existing cabin cargo handling, such as "high labor costs, low work efficiency, limited space during handling, and high risk factors for workers during handling," by achieving the advantages of ample space for handling personnel, reduced labor costs, high safety during handling, and high work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of ground auxiliary facilities for civil aviation aircraft, and in particular to a hydraulic lifting platform for transporting cargo in a passenger cabin. Background Art

[0002] When loading cargo into the cabin of passenger-to-cargo flights, airports currently use the following two methods to transport cargo to the aircraft cabin: 1. If there is an aircraft stand bridge escalator, the cargo is transported to the aircraft cabin by means of the aircraft stand bridge escalator; 2. If there is no aircraft stand bridge escalator, the cargo is generally transported to the aircraft cabin by means of a passenger elevator.

[0003] However, no matter which of the above methods is adopted, there are the following problems and disadvantages:

[0004] (1) First, although escalators or passenger elevators are used, manual handling is still required, so a large number of people are needed to carry things between the aircraft cabin door and the ground;

[0005] (2) Due to the limited space of the steps of the escalator or passenger elevator, the space for the transport personnel to stand is small and the space for working and moving is small;

[0006] (3) The safety risk factor is higher when the transport personnel stand on the steps of the escalator or passenger elevator for a long time;

[0007] (4) Most cargo loaded into the passenger cabin of passenger-to-cargo flights is in standard cartons. During the process of handling cargo, the cargo blocks the view of the cargo and the risk of stepping on empty space or slipping is high;

[0008] (5) In order to prevent safety accidents, the movers need to confirm safety before moving, which greatly hinders the improvement of the movers' work efficiency.

[0009] In summary, the current method of transporting cabin cargo to the cabin still has many problems that need to be improved. Summary of the Invention

[0010] In response to the above-mentioned problems existing in the prior art, the technical problem to be solved by the present invention is to address the problems of high labor costs, low work efficiency, small space during transportation, and high risk factors for porters during transportation during the loading and unloading process of cabin cargo.

[0011] In order to solve the above technical problems, the present invention adopts the following technical solutions: a hydraulic lifting platform for handling cargo in the passenger cabin, comprising a base frame, characterized in that: a lifting assembly and a control unit are arranged on the base frame, an upper support assembly for placing and transporting cargo is arranged above the lifting assembly, the lifting assembly can drive the upper support assembly to move up and down, a solar panel is arranged on the upper support assembly, the solar panel is electrically connected to the control unit to provide electrical energy to the control unit, the lifting assembly is electrically connected to the control unit, the lifting assembly comprises a scissor-type lifting arm assembly and a hydraulic push rod for driving the scissor-type lifting arm assembly up and down, and the upper support assembly is a fence structure.

[0012] Furthermore, the control unit includes a control cabinet, a hydraulic controller, a solar charge controller, a rechargeable battery and a hydraulic motor. The rechargeable battery is electrically connected to the control cabinet and the solar charge controller as a power supply. The input end of the solar charge controller is electrically connected to the solar panel. The control cabinet is electrically connected to the hydraulic controller. The hydraulic controller is electrically connected to the hydraulic motor. The hydraulic motor is connected to the hydraulic push rod to drive the hydraulic push rod to rise and fall. By adopting solar power supply, the power supply of the entire circuit is more flexible and convenient for use outside the airport.

[0013] Furthermore, the control cabinet includes a voltmeter, a main switch, an emergency stop button, an up switch relay, a down switch relay, a first trigger relay, a second trigger relay, and a power indicator light. The up switch relay includes a first normally open contact, a first normally closed contact, and a first up valve coil. The down switch relay includes a second normally open contact, a second normally closed contact, and a first down valve coil. The first trigger relay includes a first trigger coil and a fourth normally open contact. The second trigger relay includes a second trigger coil and a third normally open contact. The main switch, the emergency stop button, the first normally open contact, the second normally closed contact, and the first normally open contact are connected to the control cabinet. A trigger coil is electrically connected to a rechargeable battery to form a circuit. A branch consisting of the second normally open contact, the first normally closed contact and the second trigger coil in series is also connected in parallel to the branch consisting of the emergency stop button, the first normally open contact and the second normally closed contact. A branch consisting of the third normally open contact and the first rising valve coil in series, a branch consisting of the fourth normally open contact and the first falling valve coil in series, a voltmeter and a power indicator light are connected in parallel to the branch consisting of the emergency stop button, the first normally open contact, the second normally closed contact and the first trigger coil in series. Through the above-mentioned structural arrangement, the safety of circuit control can be further improved, making the entire circuit safer.

[0014] Furthermore, the support arms on both sides of the scissor-type lifting arm assembly are symmetrically arranged and connected through the first end bracket shaft at one end portion of one side, the two support arms on one side of the scissor-type lifting arm assembly are axially connected through the middle bracket shaft to form an X shape and are arranged into two groups along the height direction, and the adjacent groups of X-shaped support arms are axially connected through the second end bracket shaft, the four support arms at the top of the scissor-type lifting arm assembly are axially connected to the first scissor arm fixed ear, and the four support arms at the bottom of the scissor-type lifting arm are axially connected to the second scissor arm fixed ear, and two hydraulic push rods are fixed on the first end bracket shaft at the bottom, and the movable end of the hydraulic push rod is axially connected to a third scissor arm fixed ear, and the third scissor arm fixed ear is fixed to an opposite first end bracket shaft on the X-shaped support arm of the upper group, the hydraulic push rod is tilted, and the first scissor arm fixed ear is fixed to the bottom of the upper support assembly. Through the above structural arrangement, the upper support assembly can be quickly lifted to a suitable position, which further facilitates the transportation of lifted objects.

[0015] Furthermore, the upper support assembly includes a support base, a guardrail and an anti-slip table. The anti-slip table is provided on the upper surface of the support base, and guardrails are provided in front and behind the support base. The guardrails surround the support base into a conveying platform with exits on the left and right sides. A solar panel is provided on the inner side of each guardrail. The addition of guardrails plays a protective role and improves the safety on both sides. At the same time, by providing an anti-slip table on the upper surface of the support base, it can play an anti-slip role.

[0016] Furthermore, a non-powered roller rack is provided in the anti-slip table surface, and the non-powered roller rack includes a connecting bracket, on which one or more rollers are provided that are rotatably connected along the length direction of the bracket, and the rotation direction of the rollers is toward the exit of the conveying platform. Through the above-mentioned structural arrangement, when workers place items on the connecting bracket, the function of the rollers can be used to move the items conveniently and lightly, further facilitating transportation.

[0017] Furthermore, four positioning rails are provided above the support seat, and the sliding direction of the positioning rails is consistent with the exit direction of the transport platform. The four legs of the connecting bracket are inserted into the positioning rails, and positioning pins are provided on the sides of the four legs of the connecting bracket. By providing four positioning rails above the support seat, the position of the connecting bracket can be adjusted to ensure that the bottom of the connecting bracket can move along the track direction of the positioning rails. Once the position is positioned, the connecting bracket is fixed by the side positioning pins being against the upper surface of the support seat, thereby finally realizing the ability to quickly adjust the position of the connecting bracket and fix it.

[0018] Furthermore, two fixed legs are provided at the front and rear of the base frame, and a positioning leg is threadedly connected to each fixed leg. By arranging the fixed legs on the front and rear sides of the base frame, and then arranging a positioning leg with adjustable upper and lower heights on each fixed leg, when the entire lifting platform is moved to the corresponding position, the height of each positioning leg is adjusted according to the height of the ground, ensuring that each positioning leg is in contact with the ground to achieve the positioning effect of the entire lifting platform, avoiding arbitrary movement during use and affecting the carrying effect.

[0019] Furthermore, in order to facilitate movement, four pulleys are provided at the bottom of the base frame. By adding four pulleys at the bottom of the base frame, the entire device can be easily moved so that it can be quickly moved to a corresponding position.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] 1. First, the lifting platform is powered by solar panels, ensuring greater convenience. At the same time, the hydraulic lifting and scissor-type lifting arm assembly are used to quickly lift the upper support assembly. In the later stage, there is no need to use the existing corridor escalator or passenger elevator to transport items, ensuring more flexible transportation, higher work efficiency and faster speed.

[0022] 2. The upper support assembly is a fence structure, which further expands the area of ​​the transport platform, ensures a large space for working activities and sufficient space for the transport personnel to stand without restriction, and also improves safety. In addition, during transportation, only one worker needs to stand in the upper support assembly to protect the items, which reduces the number of transporters. At the same time, the items are placed directly on the upper support assembly, ensuring that the workers' line of sight is unobstructed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a hydraulic lifting platform for cabin cargo handling in this embodiment.

[0024] Figure 2 Schematic diagram of the structure of the base frame in this embodiment.

[0025] Figure 3 This is a schematic diagram of the structure when the lifting assembly is connected to the upper support assembly in this embodiment. Figure 1 .

[0026] Figure 4 This is a schematic diagram of the structure when the lifting assembly is connected to the upper support assembly in this embodiment. Figure 2 .

[0027] Figure 5 It is a structural diagram of an unpowered roller frame;

[0028] Figure 6Schematic diagram of the lifting assembly structure Figure 1 ;

[0029] Figure 7 Schematic diagram of the lifting assembly structure Figure 2 ;

[0030] Figure 8 Schematic diagram of the structure of the upper support assembly;

[0031] Figure 9 This is a schematic diagram of the circuit structure of the control cabinet;

[0032] Figure 10 This is the circuit principle block diagram of the control unit.

[0033] In the figure, base frame 1, lifting assembly 2, control unit 3, upper support assembly 4, solar panel 5, scissor lift arm assembly 6, hydraulic push rod 7, control cabinet 8, hydraulic controller 9, solar charge controller 10, rechargeable battery 11, hydraulic motor 12, voltmeter 8-1, main switch 8-2, emergency stop button 8-3, first normally open contact 8-4, first normally closed contact 8-5, first rising valve coil 8-6, second normally open contact 8-7, second normally closed contact 8-8, first descending valve coil 8-9, first trigger coil 8-10, fourth normally open contact 8 -11, second trigger coil 8-12, third normally open contact 8-13, power indicator light 8-14, support arm 2-1, first end bracket shaft 2-2, middle bracket shaft 2-3, second end bracket shaft 2-4, first scissor arm fixing ear 2-5, second scissor arm fixing ear 2-6, third scissor arm fixing ear 2-7, support seat 4-1, guardrail 4-2, anti-slip table 4-3, connecting bracket 4-4, roller 4-5, positioning slide rail 4-6, positioning pin 4-7, slide rod 4-8, fixed leg 1-1, positioning leg 1-2, pulley 1-3. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0036] The present invention is described in further detail below.

[0037] See also Figure 1-10 ,

[0038] Embodiment: A hydraulic lifting platform for handling cargo in the passenger cabin includes a base frame 1, on which a lifting assembly 2 and a control unit 3 are arranged. An upper support assembly 4 for placing and transporting cargo is arranged above the lifting assembly 2. The lifting assembly 2 can drive the upper support assembly 4 to move up and down. A solar panel 5 is arranged on the upper support assembly 4. The solar panel 5 is electrically connected to the control unit 3 to provide electrical energy for the control unit 3. The lifting assembly 2 is electrically connected to the control unit 3. The lifting assembly 2 includes a scissor-type lifting arm assembly 6 and a hydraulic push rod 7 that drives the scissor-type lifting arm assembly 6 up and down. The upper support assembly 4 is a fence structure.

[0039] Through the above-mentioned structural setting, first of all, the lifting platform is powered by solar panels to ensure that it is more convenient to use; at the same time, through hydraulic lifting and cooperation with the scissor-type lifting arm assembly 6, the upper support assembly 4 above is quickly lifted and lowered, and there is no need to use the existing corridor escalator or passenger elevator to transport items in the later stage, ensuring that transportation is more flexible, work efficiency is higher, and speed is faster. Moreover, the upper support assembly 4 is a fence structure, which further expands the area of ​​the transport platform, ensuring a large space for working activities and sufficient space for the transporters to settle without restrictions, and also improves safety. In addition, during transportation, only one worker needs to stand in the upper support assembly 4 to protect the items, which reduces the number of transporters. At the same time, the items are placed directly on the upper support assembly 4 to ensure that the workers' line of sight is unobstructed.

[0040] Furthermore, the control unit 3 includes a control cabinet 8, a hydraulic controller 9, a solar charging controller 10, a rechargeable battery 11 and a hydraulic motor 12. The rechargeable battery 11 is electrically connected to the control cabinet 8 and the solar charging controller 10 as a power supply. The input end of the solar charging controller 10 is electrically connected to the solar panel 5. The control cabinet 8 is electrically connected to the hydraulic controller 9. The hydraulic controller 9 is electrically connected to the hydraulic motor 12. The hydraulic motor 12 is connected to the hydraulic push rod 7 to drive the hydraulic push rod 7 to rise and fall. By adopting solar power supply, the power supply of the entire circuit is more flexible and convenient for use outside the airport.

[0041] Furthermore, the control cabinet 8 includes a voltmeter 8-1, a main switch 8-2, an emergency stop button 8-3, an up switch relay, a down switch relay, a first trigger relay, a second trigger relay, and a power indicator light 8-14. The up switch relay includes a first normally open contact 8-4, a first normally closed contact 8-5 and a first up valve coil 8-6. The down switch relay includes a second normally open contact 8-7, a second normally closed contact 8-8 and a first down valve coil 8-9. The first trigger relay includes a first trigger coil 8-10 and a fourth normally open contact 8-11. The second trigger relay includes a second trigger coil 8-12 and a third normally open contact 8-13. The main switch 8-2, the emergency stop button 8-3, the first normally open contact 8-4 and the second normally closed contact 8-8 and The first trigger coil 8-10 is electrically connected to the rechargeable battery to form a circuit. A branch consisting of the second normally open contact 8-7, the first normally closed contact 8-5 and the second trigger coil 8-12 connected in series is also connected in parallel on the branch consisting of the emergency stop button 8-3, the first normally open contact 8-4 and the second normally closed contact 8-8. A branch consisting of the third normally open contact 8-13 and the first rising valve coil 8-6 ​​connected in series, a branch consisting of the fourth normally open contact 8-11 and the first falling valve coil 8-9 connected in series, a voltmeter 8-1 and a power indicator light 8-14 are connected in parallel on the branch consisting of the emergency stop button 8-3, the first normally open contact 8-4, the second normally closed contact 8-8 and the first trigger coil 8-10 connected in series. Through the above-mentioned structural arrangement, the safety of the circuit control can be further improved, making the entire circuit safer.

[0042] Furthermore, the support arms 2-1 on both sides of the scissor-type lift arm assembly 6 are symmetrically arranged and connected through the first end bracket shaft 2-2 at one end. The two support arms 2-1 on one side of the scissor-type lift arm assembly 6 are connected in an X shape through the middle bracket shaft 2-3 and are arranged in two groups in the height direction. The adjacent groups of X-shaped support arms are connected by the second end bracket shaft 2-4. The four support arms 2-1 at the top of the scissor-type lift arm assembly 6 are connected to the first scissor arm fixed ear 2-5, and the four support arms 2-1 at the bottom of the scissor-type lift arm are connected to the second scissor arm fixed ear 2-6. Two of the hydraulic push rods 7 are fixed on the end bracket shaft 2-2, and the movable end shaft of the hydraulic push rod 7 is connected to a third scissor arm fixing ear 2-7. The third scissor arm fixing ear 2-7 is fixed on a first end bracket shaft 2-2 opposite to the X-shaped support arm 2-1 of the upper group, and the first scissor arm fixing ear 2-5 is fixed on the bottom of the upper support assembly 4. Through the above structural setting, the upper support assembly 4 can be quickly lifted and lowered to a suitable position, which further facilitates the transportation of lifted items, and the other end of the second scissor arm fixing ear 2-6 is fixed to the side of the base frame 1.

[0043] Furthermore, the upper support assembly 4 includes a support base 4-1, a guardrail 4-2 and an anti-slip surface 4-3. The upper surface of the support base 4-1 is provided with an anti-slip surface 4-3, and guardrails 4-2 are provided in front and behind the support base 4-1. The guardrails 4-2 surround the support base 4-1 into a conveying platform with exits on the left and right sides. A solar panel 5 is provided on the inner side of each guardrail 4-2. By adding the guardrail 4-2, a protective effect is played, and the safety on both sides is improved. At the same time, by providing the anti-slip surface 4-3 on the upper surface of the support base 4-1, an anti-slip effect can be played.

[0044] Furthermore, a non-powered roller rack is provided in the anti-slip table surface 4-3, and the non-powered roller rack includes a connecting bracket 4-4, and one or more rollers 4-5 are provided on the connecting bracket 4-4 and are rotatably connected along the length direction of the bracket. The rotation direction of the roller 4-5 is toward the exit of the conveying platform. Through the above-mentioned structural arrangement, when workers place items on the connecting bracket 4-4, the function of the roller 4-5 can be used to move the items conveniently and lightly, further facilitating transportation.

[0045] Furthermore, four positioning rails 4-6 are provided above the support seat 4-1. The sliding direction of the positioning rails 4-6 is consistent with the exit direction of the transport platform. The four legs of the connecting bracket 4-4 are inserted into the positioning rails 4-6. Positioning pins 4-7 are provided on the sides of the four legs of the connecting bracket 4-4. By providing four positioning rails 4-6 above the support seat 4-1, the position of the connecting bracket 4-4 is adjusted to ensure that the bottom of the connecting bracket 4-4 can move along the track direction of the positioning rails 4-6. Once the position is positioned, the four positioning pins 4-7 on the side are abutted against the upper surface of the support seat 4-1 to fix the connecting bracket 4-4, thereby finally achieving the ability to quickly adjust the position of the connecting bracket 4-4 and fix it. In order to facilitate movement, the bottom of the four legs of the connecting bracket 4-4 are provided with slide rods 4-8 that are movably inserted into the positioning rails 4-6.

[0046] Furthermore, two fixed legs 1-1 are provided at the front and rear of the base frame 1, and a positioning leg 1-2 is threadedly connected to each fixed leg 1-1. By providing four fixed legs 1-1 on the front and rear sides of the base frame 1, and then providing a positioning leg 1-2 with adjustable height up and down on each fixed leg 1-1, when the entire lifting platform is moved to the corresponding position, the height of each positioning leg 1-2 is adjusted according to the height of the ground, ensuring that each positioning leg 1-2 is against the ground to achieve the entire lifting platform and positioning effect, avoiding arbitrary movement during use and affecting the handling effect. The fixed legs 1-1 are hinged on the base frame 1. When the positioning legs 1-2 are not against the ground, the fixed legs 1-1 are rotatably connected to the base frame 1.

[0047] Furthermore, in order to facilitate movement, four pulleys 1-3 are provided at the bottom of the base frame 1. By adding four pulleys 1-3 at the bottom of the base frame 1, the entire device can be easily moved so that it can be quickly moved to the corresponding position.

[0048] The working principle of the entire equipment: First, the worker moves the entire lifting platform to the position where the cargo is installed in the cabin, and then starts the equipment. First, the entire upper support assembly 4 is lowered to the lowest point, and then the items are placed on one side of the connecting bracket 4-4 on the upper support assembly 4. A person stands on the non-slip table 4-3. At this time, the control cabinet 8 drives the hydraulic controller 9 to work, and the hydraulic controller 9 drives the hydraulic motor 12 to notify and ensure that the hydraulic push rod 7 slowly lifts the scissor-type lifting arm assembly 6 to the appropriate position, and then stops lifting. Then the worker lightly pushes the item along the rolling method of the roller 4-5 to the appropriate position, that is, when it is aligned with the entrance for installing cargo in the cabin, the worker manually sends the item into the entrance for installing cargo in the cabin. Then the hydraulic controller 9 drives the hydraulic motor 12 to work, ensuring that the hydraulic push rod 7 retracts and returns to the lowest point to continue transporting the items. This operation can be repeated until all the items are transported and the work can be stopped. In addition, when fixing the entire lifting platform, the fixed legs 1-1 around the base frame 1 are used to support the entire lifting platform, and are adjusted by adjusting the lifting of the positioning legs 1-2.

[0049] Therefore, the technical advantages of the present invention are as follows:

[0050] (1) The four legs of the base frame 1 are equipped with four fixed legs to support the entire lifting process. The positioning legs 1-2 can be telescopically adjusted to adjust the installation position, and play a role in stable support and wind protection.

[0051] (2) The entire lifting part can be adjusted according to the cabin door height of each aircraft model, making it suitable for various passenger aircraft;

[0052] (3) The lifting platform is equipped with solar panels to provide power support for the lifting of the equipment, making it more convenient to use;

[0053] (4) The lifting platform uses a non-powered roller bracket that can adjust its height according to the height of the cabin door of various models, making it easier for porters at the cabin door to carry goods on the roller.

[0054] Therefore, the auxiliary function of the present invention is adopted to further improve the efficiency of the protection of the transportation of goods, and can optimize the transfer procedures of the handling staff on the passenger elevator or the bridge stairs during the passenger-to-cargo conversion protection process, thereby saving flight protection time; and the handling staff do not need to stand on the bridge or the passenger elevator stairs to carry the goods, which solves the safety risks of employees working on the stairs. Compared with the use of the bridge or the passenger elevator for passenger-to-cargo conversion protection, 5-10 people are saved, and this structure only needs one worker. If: taking the A320 model as an example, the average passenger-to-cargo conversion protection takes 3-3.5 hours, and based on the labor cost of 25 yuan / hour, the use of this platform can further ensure that the A320 model saves about 375-875 yuan in costs.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A hydraulic lifting platform for cabin cargo handling, comprising a base frame (1), characterized in that: A lifting assembly (2) and a control unit (3) are provided on the base frame (1); an upper support assembly (4) for placing and transporting goods is provided above the lifting assembly (2); the lifting assembly (2) can drive the upper support assembly (4) to move up and down; a solar panel (5) is provided on the upper support assembly (4); the solar panel (5) is electrically connected to the control unit (3) to provide power to the control unit (3); the lifting assembly (2) is electrically connected to the control unit (3); the lifting assembly (2) includes a scissor-type lifting arm assembly (6) and a hydraulic push rod (7) for driving the scissor-type lifting arm assembly (6) to move up and down; the upper support assembly (4) is a fence structure; the upper support assembly (4) includes a support seat (4-1), a guardrail (4-2) and an anti-slip table (4-3); the upper surface of the support seat (4-1) is provided with an anti-slip table (4-3) ), guardrails (4-2) are provided at the front and rear of the support seat (4-1), the guardrails (4-2) enclose the support seat (4-1) into a conveying platform with exits on the left and right sides, a solar panel (5) is provided on the inner side of each guardrail (4-2), a non-powered roller rack is provided in the anti-slip table (4-3), the non-powered roller rack includes a connecting bracket (4-4), one or more rollers (4-5) are provided on the connecting bracket (4-4) and are connected to the conveying platform in a rotatable manner along the length direction of the bracket, the rotation direction of the rollers (4-5) is toward the exit of the conveying platform, four positioning rails (4-6) are provided above the support seat (4-1), the sliding direction of the positioning rails (4-6) is consistent with the exit direction of the conveying platform, the four feet of the connecting bracket (4-4) are inserted into the positioning rails (4-6), and positioning pins (4-7) are provided on the sides of the four feet of the connecting bracket (4-4).

2. The hydraulic lifting platform for cabin cargo handling according to claim 1, characterized in that: The control unit (3) includes a control cabinet (8), a hydraulic controller (9), a solar charge controller (10), a rechargeable battery (11) and a hydraulic motor (12). The rechargeable battery (11) is electrically connected to the control cabinet (8) and the solar charge controller (10) as a power supply. The input end of the solar charge controller (10) is electrically connected to the solar panel (5). The control cabinet (8) is electrically connected to the hydraulic controller (9). The hydraulic controller (9) is electrically connected to the hydraulic motor (12). The hydraulic motor (12) is connected to the hydraulic push rod (7) to drive the hydraulic push rod (7) to move up and down.

3. The hydraulic lifting platform for cabin cargo handling according to claim 2, characterized in that: The control cabinet (8) includes a voltmeter (8-1), a main switch (8-2), an emergency stop button (8-3), an ascending switch relay, a descending switch relay, a first trigger relay, a second trigger relay, and a power indicator light (8-14). The ascending switch relay includes a first normally open contact (8-4), a first normally closed contact (8-5), and a first ascending valve coil (8-6). The descending switch relay includes a second normally open contact (8-7), a second normally closed contact (8-8), and a first descending valve coil (8-9). The first trigger relay includes a first trigger coil (8-10) and a fourth normally open contact (8-11). The second trigger relay includes a second trigger coil (8-12) and a third normally open contact (8-13). The main switch (8-2), the emergency stop button (8-3), the first normally open contact ( 8-4) and the second normally closed contact (8-8) and the first trigger coil (8-10) are electrically connected to the rechargeable battery to form a circuit; a branch circuit consisting of the second normally open contact (8-7) connected in series with the first normally closed contact (8-5) and the second trigger coil (8-12) is also connected in parallel to the branch circuit consisting of the emergency stop button (8-3), the first normally open contact (8-4) and the second normally closed contact (8-8) and the first trigger coil (8-10); a branch circuit consisting of the third normally open contact (8-13) connected in series with the first rising valve coil (8-6), a branch circuit consisting of the fourth normally open contact (8-11) and the first falling valve coil (8-9) in series, a voltmeter (8-1) and a power indicator light (8-14) are connected in parallel to the branch circuit consisting of the emergency stop button (8-3), the first normally open contact (8-4) and the second normally closed contact (8-8) and the first trigger coil (8-10).

4. A hydraulic lifting platform for cabin cargo handling according to claim 1, 2 or 3, characterized in that: The support arms (2-1) on both sides of the scissor-type lifting arm assembly (6) are symmetrically arranged and connected through a first end bracket shaft (2-2) at one end. The two support arms (2-1) on one side of the scissor-type lifting arm assembly (6) are connected in an X shape through a middle bracket shaft (2-3) and are arranged in two groups along the height direction. The two first end bracket shafts (2-2) on the two groups of X-shaped support arms are respectively located on both sides and distributed up and down. The adjacent groups of X-shaped support arms are connected by a second end bracket shaft (2-4). The four support arms (2-1) at the top of the scissor-type lifting arm assembly (6) are connected to the first scissor-type lifting arm assembly (6). The knife arm fixing ear (2-5) is axially connected, and the four support arms (2-1) at the bottom of the scissor-type lifting arm are axially connected to the second scissor arm fixing ear (2-6). Two hydraulic push rods (7) are fixed on the first end bracket shaft (2-2) at the bottom. The movable end of the hydraulic push rod (7) is axially connected to a third scissor arm fixing ear (2-7). The third scissor arm fixing ear (2-7) is fixed on a first end bracket shaft (2-2) opposite to the X-shaped support arm (2-1) of the upper group. The first scissor arm fixing ear (2-5) is fixed to the bottom of the upper support assembly (4).

5. The hydraulic lifting platform for cabin cargo handling according to claim 4, characterized in that: Two fixed legs (1-1) are provided at the front and rear of the base frame (1), and a positioning leg (1-2) is threadedly connected to each fixed leg (1-1).

6. The hydraulic lifting platform for cabin cargo handling according to claim 5, characterized in that: Four pulleys (1-3) are provided at the bottom of the base frame (1).

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