Airport luggage carrying cart
By introducing a lifting mechanism into the airport baggage handling trolley, and using a motor-driven bidirectional screw to raise the height of the trolley, the problem of movement on uneven roads is solved, and stable and convenient use in complex terrain is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI XINHANG INTELLIGENT EQUIP MFG CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-01
AI Technical Summary
Existing airport baggage handling trolleys are difficult to move on uneven surfaces and cannot traverse potholes or uneven terrain, limiting their application scenarios.
An airport baggage handling trolley with a lifting mechanism was designed, including a fixed frame, a two-way lead screw, a moving block, a connecting rod, a rotating plate, and a second omnidirectional wheel. The moving block is separated by a motor driven by the two-way lead screw, which drives the rotating plate to rotate and raise the height of the trolley to overcome obstacles.
This expands the application range of the cart, enabling it to move stably in complex terrain and improving its ease of use and stability.
Smart Images

Figure CN224184318U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of airport transportation equipment technology, specifically an airport baggage handling trolley. Background Technology
[0002] At most airports, dedicated passenger trolleys are provided to help passengers easily carry and transport their luggage and packages before boarding and after disembarking. These trolleys are practical and convenient, helping passengers manage their belongings efficiently, thus making the whole travel process smoother and more enjoyable.
[0003] In the prior art, a Chinese utility model patent discloses an airport ground staff baggage handling trolley (publication number: CN213921091U). The top of the placement plate has an anti-slip groove, a baffle is fixedly connected to the top of the placement plate, a limiting seat is fixedly connected to the top of the placement plate, a limiting pin is movably connected to the front of the limiting seat, a handle is movably connected to the outer wall of the limiting pin, an anti-slip sleeve is movably connected to the outer wall of the handle, and a connecting mechanism is fixedly connected to one side of the baffle. The connecting mechanism includes a connecting seat, and a connecting pin is movably connected to the front of the connecting seat. The cooperation of these components facilitates baggage handling, making it easier for people to carry passengers' baggage and also ensuring the safety of valuables in the luggage.
[0004] However, the trolley can only travel on flat surfaces. Once it encounters uneven surfaces, such as potholes or uneven terrain, the trolley may encounter difficulties and be unable to continue moving. This situation limits the application scenarios of the trolley, making it unable to play its due role in some complex terrains or irregular ground environments. Utility Model Content
[0005] This utility model provides an airport baggage handling trolley, which aims to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an airport baggage handling trolley, which includes a trolley body, a support rod fixedly installed on the trolley body, a handle fixedly installed on the top of the support rod, a first universal wheel rotatably installed on the bottom of the trolley body, and a lifting mechanism provided on the bottom of the trolley body for raising its height.
[0007] The lifting mechanism includes a fixed frame fixedly installed at the bottom of the trolley body, a bidirectional lead screw rotatably installed inside the fixed frame, a movable block slidably installed inside the fixed frame, a connecting rod rotatably installed inside the movable block, a fixed block fixedly installed at the bottom of the fixed frame, a rotating plate rotatably installed inside the two fixed blocks, and a second omnidirectional wheel rotatably installed on the end of the rotating plate away from the fixed block.
[0008] As a further optimization, the bidirectional lead screw passes through the moving block, and the moving block has a threaded hole inside that matches the bidirectional lead screw. The end of the connecting rod away from the moving block is rotatably mounted inside the rotating plate, and multiple second universal wheels are provided.
[0009] As a further optimization, a motor is fixedly connected to one side of one of the fixed frames, and the output end of the motor passes through one side of the fixed frame and is fixedly connected to one end of the bidirectional lead screw.
[0010] As a further optimization, the other end of the bidirectional lead screw passes through the fixed frame, and a synchronous pulley is rotatably connected to the other side of the fixed frame.
[0011] As a further optimization, the end of the bidirectional lead screw away from the motor is fixedly connected to one side of the synchronous pulley, and a synchronous belt is movably connected between the two synchronous pulleys.
[0012] As a further optimization, a protective plate is fixedly connected between the two support rods, and a tablet computer is fixedly connected to one side of the protective plate.
[0013] As a further optimization, a connecting plate is fixedly connected to one side of the protective plate, and a wireless charging fixing plate is fixedly connected to the top of the connecting plate. A cup groove is opened inside the connecting plate.
[0014] Compared with the prior art, this utility model, through the setting of the lifting mechanism, allows workers to operate the two-way lead screw on uneven terrain, causing it to drive the moving block to separate, and then drive the rotating plate to rotate through the connecting rod. At this time, the second universal wheel is in contact with the ground, while the first universal wheel is off the ground. Because the second universal wheel is in a higher position, it can lift the trolley body, increase its height, and thus facilitate crossing obstacles, expanding the application range of the transport trolley. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the bottom view structure of this utility model;
[0017] Figure 3This is a schematic diagram of the bottom view structure of the other side of this utility model;
[0018] Figure 4 for Figure 1 Enlarged view of point A in the middle;
[0019] Figure 5 This is a schematic diagram of the installation of the second universal wheel of this utility model.
[0020] In the diagram: 1. Cart body; 2. Support rod; 3. Handle; 4. First omnidirectional wheel; 5. Fixed frame; 6. Two-way lead screw; 7. Moving block; 8. Connecting rod; 9. Fixed block; 10. Rotating plate; 11. Second omnidirectional wheel; 12. Motor; 13. Synchronous pulley; 14. Synchronous belt; 15. Protective plate; 16. Tablet unit; 17. Connecting plate; 18. Wireless charging mounting plate; 19. Cup holder. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] This utility model provides an airport baggage handling trolley, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the airport baggage handling trolley includes a trolley body 1, a support rod 2 fixedly installed on the trolley body 1, a handle 3 fixedly installed on the top of the support rod 2, a first universal wheel 4 rotatably installed at the bottom of the trolley body 1, and a lifting mechanism set at the bottom of the trolley body 1 to raise its height.
[0023] The lifting mechanism includes a fixed frame 5 fixedly installed at the bottom of the trolley body 1, a two-way lead screw 6 rotatably installed inside the fixed frame 5, a movable block 7 slidably installed inside the fixed frame 5, a connecting rod 8 rotatably installed inside the movable block 7, a fixed block 9 fixedly installed at the bottom of the fixed frame 5, a rotating plate 10 rotatably installed inside the two fixed blocks 9, and a second universal wheel 11 rotatably installed on the end of the rotating plate 10 away from the fixed block 9.
[0024] The bidirectional lead screw 6 passes through the moving block 7. The moving block 7 has a threaded hole inside that is compatible with the bidirectional lead screw 6. The end of the connecting rod 8 away from the moving block 7 is rotatably installed inside the rotating plate 10. Multiple second universal wheels 11 are provided.
[0025] When using this airport baggage handling trolley, the baggage is first placed on the trolley body 1. Then, staff can push the trolley by holding the handle 3. At this time, the first caster wheel 4 is in contact with the ground, facilitating the trolley's turning and movement. When moving over uneven terrain, the staff rotates the double-acting screw 6. The rotation of the double-acting screw 6 engages with the threaded hole inside the moving block 7, causing the two moving blocks 7 to move away from each other. As the moving blocks 7 move, they drive the rotating plate 10 to rotate via the connecting rod 8, causing the second caster wheel 11 to contact the ground. At this point, the first caster wheel 4 is removed from the ground. The height of the second caster 11 is higher than that of the first caster 4, so the trolley body 1 can be lifted by the second caster 11, thereby increasing the height of the trolley body 1 and making it easier for the trolley body 1 to cross potholes. After crossing the potholes, the double-acting screw 6 is rotated in the opposite direction. When the double-acting screw 6 rotates, it will engage with the threaded hole inside the moving block 7, thereby causing the two moving blocks 7 to move away from each other. When the moving blocks 7 move, they will drive the rotating plate 10 to rotate in the opposite direction through the connecting rod 8, thereby causing the second caster 11 to leave the ground. At this time, the first caster 4 is in contact with the ground, which makes it easier for the trolley body 1 to continue to move.
[0026] Furthermore, to facilitate the simultaneous rotation of the two bidirectional lead screws 6, such as... Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a motor 12 is fixedly connected to one side of one of the fixed frames 5. The output end of the motor 12 passes through one side of the fixed frame 5 and is fixedly connected to one end of the bidirectional lead screw 6.
[0027] The other end of the bidirectional lead screw 6 passes through the fixed frame 5, and the other side of the fixed frame 5 is rotatably connected to the synchronous pulley 13.
[0028] The end of the bidirectional lead screw 6 away from the motor 12 is fixedly connected to one side of the synchronous pulley 13, and a synchronous belt 14 is movably connected between the two synchronous pulleys 13.
[0029] When the airport baggage handling trolley is in use, starting the motor 12 will cause the output end of the motor 12 to drive the bidirectional lead screw 6, which is fixedly connected to it, to rotate. Since the end of the bidirectional lead screw 6 away from the motor 12 is fixedly connected to one side of the synchronous pulley 13, and the two synchronous pulleys 13 are movably connected by a synchronous belt 14, when one bidirectional lead screw 6 rotates, it will drive the other bidirectional lead screw 6 to rotate synchronously through the transmission action of the synchronous pulley 13 and the synchronous belt 14. This achieves the simultaneous rotation of the two bidirectional lead screws 6, which in turn allows the two moving blocks 7 to move simultaneously toward or away from each other. This ensures the stability of the trolley body 1 when crossing bumpy terrain and also improves the ease of use of the trolley body 1.
[0030] Furthermore, to facilitate charging mobile phones, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a protective plate 15 is fixedly connected between the two support rods 2, and a tablet computer 16 is fixedly connected to one side of the protective plate 15.
[0031] A connecting plate 17 is fixedly connected to one side of the protective plate 15, and a wireless charging fixing plate 18 is fixedly connected to the top of the connecting plate 17. A cup slot 19 is opened inside the connecting plate 17.
[0032] When using this airport baggage handling trolley, staff can place their mobile phones on the wireless charging pad 18 to charge them, eliminating worries about low battery levels and greatly improving the staff's user experience. Meanwhile, the cup holder 19 provides space for staff to place water cups and other items, making the trolley more user-friendly and further enhancing its convenience and practicality. In addition, the tablet computer 16 not only allows staff to easily view important data such as flight information and passenger baggage status, but also serves as an entertainment device, providing passengers with leisure services such as watching movies and playing games when the trolley is not in use, further improving the overall quality of airport services and passenger satisfaction.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An airport baggage trolley characterised by: The airport baggage handling trolley includes a trolley body (1), a support rod (2) fixedly installed on the trolley body (1), a handle (3) fixedly installed on the top of the support rod (2), a first universal wheel (4) rotatably installed at the bottom of the trolley body (1), and a lifting mechanism provided at the bottom of the trolley body (1) for raising its height. The lifting mechanism includes a fixed frame (5) fixedly installed at the bottom of the trolley body (1), a two-way lead screw (6) rotatably installed inside the fixed frame (5), a movable block (7) slidably installed inside the fixed frame (5), a connecting rod (8) rotatably installed inside the movable block (7), a fixed block (9) fixedly installed at the bottom of the fixed frame (5), a rotating plate (10) rotatably installed inside the two fixed blocks (9), and a second universal wheel (11) rotatably installed on the end of the rotating plate (10) away from the fixed block (9).
2. The airport baggage handling trolley according to claim 1, characterized in that: The bidirectional lead screw (6) passes through the moving block (7), and the moving block (7) has a threaded hole that matches the bidirectional lead screw (6) inside. The end of the connecting rod (8) away from the moving block (7) is rotatably installed inside the rotating plate (10), and multiple second universal wheels (11) are provided.
3. An airport baggage trolley according to claim 1, characterised in that: One of the fixed frames (5) is fixedly connected to one side of a motor (12), the output end of the motor (12) passes through one side of the fixed frame (5) and is fixedly connected to one end of the bidirectional lead screw (6).
4. An airport baggage handling trolley according to claim 3, characterized in that: The other end of the bidirectional lead screw (6) passes through the fixed frame (5), and a synchronous wheel (13) is rotatably connected to the other side of the fixed frame (5).
5. An airport baggage handling trolley according to claim 4, characterized in that: The end of the bidirectional lead screw (6) away from the motor (12) is fixedly connected to one side of the synchronous pulley (13), and a synchronous belt (14) is movably connected between the two synchronous pulleys (13).
6. An airport baggage handling trolley according to claim 1, characterized in that: A protective plate (15) is fixedly connected between the two support rods (2), and a tablet computer (16) is fixedly connected to one side of the protective plate (15).
7. An airport baggage handling trolley according to claim 6, characterized in that: A connecting plate (17) is fixedly connected to one side of the protective plate (15), and a wireless charging fixing plate (18) is fixedly connected to the top of the connecting plate (17). A cup groove (19) is opened inside the connecting plate (17).
Citation Information
Patent Citations
Luggage carrying cart for airport ground service
CN213921091U