Air cargo transportation trailer with damping function

Abstract

The utility model discloses an air cargo transportation trailer with a shock absorption function, which comprises a frame, connecting frames arranged at two ends below the frame, wheel shafts arranged below the connecting frames, shock absorption mechanisms arranged between the wheel shafts and the connecting frames and comprising damping shock absorbers arranged between the wheel shafts and the connecting frames, and fixing plates arranged at the rear ends of the wheel shafts. The two sides of the fixing plate are fixedly connected with first hinge seats, the first hinge seats are hinged to connecting rods, one ends of the connecting rods are hinged to second hinge seats, the second hinge seats are connected with moving blocks, the moving blocks are internally connected with fixing rods in a penetrating mode, and one sides of the moving blocks are fixedly connected with damping springs. Vibration and impact caused by uneven road surfaces or deceleration strips can be effectively reduced through the damping shock absorbers, and extra vertical vibration absorption capacity can be provided through cooperation of the fixed blocks, the connecting rods, the movable blocks and the damping springs. The supporting frames not only enhance the stability of the whole structure, but also improve the damping efficiency.

Description

Technical Field

[0001] This utility model relates to the field of air cargo transportation technology, and more specifically, to an air cargo transport trailer with shock absorption function. Background Technology

[0002] In modern air cargo logistics, the safe and efficient transport of goods is crucial, especially the journey from the ground warehouse to the aircraft. Current technology primarily relies on air cargo trailers for this purpose. These trailers are not powered themselves and typically require a tractor unit at the front for movement.

[0003] Traditional air cargo transport vehicles typically employ simple frame and wheel structures. However, due to the complex road conditions within airports (such as uneven surfaces and speed bumps), cargo is subject to unnecessary vibrations and impacts during its journey from security checkpoints to the aircraft, increasing the risk of damage. Furthermore, the current design of transport trailers is relatively fixed and lacks flexibility. This design limits the turning ability of transport trailers, requiring drivers to spend more time and effort to ensure the safe transport of cargo when operating in confined or complex airport environments. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes an air cargo transport trailer with shock absorption function to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A shock-absorbing air cargo trailer includes a frame with connecting frames at both ends below the frame, a wheel axle below the connecting frames, and a shock-absorbing mechanism between the wheel axle and the connecting frames. The shock-absorbing mechanism includes a damping shock absorber disposed between the wheel axle and the connecting frames. A fixed plate is provided at the rear end of the wheel axle, and first hinge seats are fixedly connected to both sides of the fixed plate. The first hinge seats are hinged to a connecting rod, one end of the connecting rod is hinged to a second hinge seat, the second hinge seat is connected to a moving block, a fixed rod is connected through the moving block, and a shock-absorbing spring is fixedly connected to one side of the moving block.

[0007] Furthermore, one end of the shock-absorbing spring is connected to the mounting plate, the fixing rod is fixedly connected to the mounting plate, the mounting plate is fixedly connected to the connecting frame, and the shock-absorbing spring is sleeved on the outside of the fixing rod.

[0008] Furthermore, in order to reduce the friction between the moving block and the fixed rod, a mounting base is fixedly connected inside the moving block, and multiple roller-type press-fit ball plungers are connected inside the mounting base.

[0009] Furthermore, to facilitate the addition of lubricating oil to the mounting base and to lubricate the roller-type press-fit ball plunger, an oiling hole is provided at the top of the moving block.

[0010] Furthermore, a connecting frame is connected to a turntable via a rotating shaft, the turntable is rotatably connected to a fixed plate, the fixed plate is fixed to the bottom of the frame, a fixed seat is provided on a wheel axle, there are two fixed seats, and a pull frame is hinged to one side of the fixed seat.

[0011] Furthermore, a pull ring is provided at one end of the pull frame.

[0012] Furthermore, a fixing frame is provided at the bottom of the trolley frame, and fixing blocks are connected to both ends of the fixing frame. A brake pad is provided on one side of the fixing block.

[0013] Furthermore, another connecting bracket is fixedly connected to the vehicle frame by bolts.

[0014] Furthermore, a handle is provided on top of the trolley frame to facilitate lifting or lowering it.

[0015] Furthermore, wheels are rotatably connected to both ends of the wheel axle.

[0016] The beneficial effects of this utility model are as follows:

[0017] (1) By setting up a damping mechanism, the damping shock absorber can effectively reduce the vibration and impact caused by uneven road surfaces or speed bumps. In addition, through the cooperation between the fixed block, connecting rod, moving block and damping spring, it can provide additional vertical vibration absorption capacity. These support frames not only enhance the stability of the overall structure, but also improve the damping efficiency. Furthermore, by setting a roller-type press-fit ball plunger inside the moving block, sliding friction is effectively converted into rolling friction, reducing the friction between the moving block and the fixed rod, reducing wear, and extending the service life of the device.

[0018] (2) The rotating connection design between the turntable and the fixed plate increases the steering ability of the device, making it easier to operate in narrow or complex airport environments. In addition, by setting brake pads at the bottom of the trolley frame, additional safety is provided, allowing the operator to brake the device when it is not moving, thus preventing accidents. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a front view of an air cargo transport trailer with shock absorption function according to an embodiment of the present utility model;

[0021] Figure 2 This is a structural diagram of an air cargo transport trailer with shock absorption function according to an embodiment of the present utility model;

[0022] Figure 3 This is a rear view of an air cargo transport trailer with shock absorption function according to an embodiment of the present utility model;

[0023] Figure 4 This is a structural diagram of a moving block for an air cargo transport trailer with shock absorption function, according to an embodiment of the present utility model.

[0024] In the picture:

[0025] 1. Frame; 2. Connecting frame; 3. Wheel axle; 4. Shock absorption mechanism; 401. Damping shock absorber; 402. Fixing plate; 403. First hinge seat; 404. Connecting rod; 405. Second hinge seat; 406. Moving block; 407. Fixing rod; 408. Shock absorber spring; 5. Mounting plate; 6. Mounting seat; 7. Roller-type press-fit ball plunger; 8. Oil filling hole; 9. Shaft; 10. Turntable; 11. Fixing plate; 12. Fixing seat; 13. Pull frame; 14. Pull ring; 15. Fixing frame; 16. Fixing block; 17. Brake pad; 18. Handle; 19. Wheel. Detailed Implementation

[0026] 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.

[0027] According to an embodiment of the present invention, an air cargo transport trailer with shock absorption function is provided.

[0028] Example 1

[0029] like Figures 1-4As shown, the shock-absorbing transport trailer for air cargo according to an embodiment of the present invention includes a frame 1, connecting frames 2 at both ends below the frame 1, a wheel axle 3 below the connecting frames 2, wheels 19 rotatably connected to both ends of the wheel axle 3, a shock-absorbing mechanism 4 between the wheel axle 3 and the connecting frames 2, the shock-absorbing mechanism 4 including a damping shock absorber 401 disposed between the wheel axle 3 and the connecting frames 2, a fixing plate 402 at the rear end of the wheel axle 3, a first hinge seat 403 fixedly connected to both sides of the fixing plate 402, the first hinge seat 403 being hinged to a connecting rod 404, one end of the connecting rod 404 being hinged to a second hinge seat 405, and the second hinge seat 405 being hinged to... The movable block 406 is connected to the fixed rod 407, which runs through the movable block 406. A shock-absorbing spring 408 is fixedly connected to one side of the movable block 406. One end of the shock-absorbing spring 408 is connected to the mounting plate 5. The fixed rod 407 is fixedly connected to the mounting plate 5. The mounting plate 5 is fixedly connected to the connecting frame 2. The shock-absorbing spring 408 is sleeved on the outside of the fixed rod 407. A mounting seat 6 is fixedly connected inside the movable block 406. Multiple roller-type press-fit ball plungers 7 are connected inside the mounting seat 6. The top of the movable block 406 is provided with an oiling hole 8 for adding lubricating oil to the mounting seat 6, which facilitates regular lubrication and maintenance of these ball plungers and ensures their long-term stable operation. With the above solution, when the transport trailer encounters uneven road surfaces or speed bumps during transportation, the wheel axle 3 will be subjected to vertical vibration and impact. The damping shock absorber 401 can effectively absorb and dissipate the vibration energy during transportation through its internal damping material and damping structure. Furthermore, as the wheel axle 3 moves upward, under the action of the connecting rod 404, it can drive the moving block 406 to move on the fixed rod 407, which can compress the shock absorber spring 408. The shock absorber spring 408 can effectively absorb and buffer these vibrations and impacts through its own elasticity and deformation.

[0030] like Figures 1-4As shown, one of the connecting frames 2 is connected to the turntable 10 via a rotating shaft 9, and the other connecting frame 2 is fixedly connected to the frame 1 by bolts. The turntable 10 is rotatably connected to the fixed plate 11, and the fixed plate 11 is fixed to the bottom of the frame 1. A fixed seat 12 is provided on one wheel axle 3. There are two fixed seats 12. The wheel axle 3 and the fixed seat 12 are made of alloy steel, which is a material with high strength and good toughness and can withstand large loads and impacts. A trolley frame 13 is hinged to one side of the fixed seat 12. A fixed frame 15 is provided at the bottom of the trolley frame 13. Fixed blocks 16 are connected to both ends of the fixed frame 15. A brake pad 17 is fixedly connected to one side of the fixed block 16. A trolley ring 14 is provided at one end of the trolley frame 13 for connecting this transport device to the tractor. A handle 18 is provided on the top of the trolley frame 13 for easy lifting or lowering of the trolley frame 13 around the fixed seat 12. With the above scheme, when turning is required, the trolley frame 13 is rotated left and right, causing the turntable 10 to rotate around the fixed plate 11, thereby rotating one wheel axle 3 and turning the transport trailer. When the transport trailer stops moving, one end of the trolley frame 13 can be rotated downward around the fixed seat 12 to make the brake pad 17 contact the wheel 19. At this time, the brake pad 17 will generate friction on the wheel 19, thereby preventing the wheel 19 from rotating and keeping the pallet truck stationary.

[0031] In summary, by utilizing the above-mentioned technical solution of this utility model, the damping shock absorber 401 effectively reduces vibration and impact caused by uneven road surfaces or speed bumps by setting the shock absorption mechanism 4. Furthermore, the cooperation between the fixed block 16, connecting rod 404, moving block 406, and shock-absorbing spring 408 provides additional vertical vibration absorption capacity. These components not only enhance the stability of the overall structure but also improve shock absorption efficiency. The roller-type press-fit ball plunger 7 inside the moving block 406 effectively converts sliding friction into rolling friction, reducing the friction between the moving block 406 and the fixed rod 407, reducing wear, and extending the service life of the device. The rotating connection design between the turntable 10 and the fixed plate 11 increases the device's steering capability, making it easier to operate in confined or complex airport environments. Finally, the brake pad 17 at the bottom of the trolley frame 13 provides additional safety, allowing operators to brake the transport device when it is not moving, preventing accidents.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air cargo transport trailer having a shock absorbing function, characterized by, Including frame (1), both ends below the frame (1) are provided with connecting frame (2), the connecting frame (2) below is provided with wheel shaft (3), the wheel shaft (3) is provided with damping mechanism (4) between connecting frame (2), the damping mechanism (4) includes the damping shock absorber (401) between wheel shaft (3) and connecting frame (2), the wheel shaft (3) rear end is provided with fixed plate (402), the fixed plate (402) both sides are fixedly connected with first hinged seat (403), the first hinged seat (403) is hinged with connecting rod (404), the connecting rod (404) one end is hinged with second hinged seat (405), the second hinged seat (405) is connected with moving block (406), the moving block (406) is internally connected with fixed rod (407), the moving block (406) one side is fixedly connected with damping spring (408).

2. The aircraft cargo transport trailer with shock-absorbing function according to claim 1, characterized in that, The damping spring (408) one end is connected with mounting plate (5), the fixed rod (407) is fixedly connected with mounting plate (5), the mounting plate (5) is fixedly connected with connecting frame (2), the damping spring (408) is set on the outside of fixed rod (407).

3. The aircraft cargo transport trailer with shock-absorbing function according to claim 1, characterized in that, The moving block (406) is fixedly connected with mounting seat (6) inside, the mounting seat (6) is connected with a plurality of roller type press-in ball head plunger (7) inside.

4. The aircraft cargo transport trailer with shock-absorbing function according to claim 1, characterized in that, The moving block (406) top is provided with oil hole (8).

5. The aircraft cargo transport trailer with shock absorbing function according to claim 1, characterized in that, One connecting frame (2) is connected with rotary disc (10) through rotating shaft (9) above, the rotary disc (10) is rotatably connected with fixed disc (11), the fixed disc (11) is fixed on the bottom end of frame (1), one wheel shaft (3) is provided with fixed seat (12), the number of fixed seat (12) is two, the fixed seat (12) one side is hinged with pull frame (13).

6. The aircraft cargo transport trailer with shock-absorbing function according to claim 5, characterized in that, The pull frame (13) one end is provided with pull ring (14).

7. The aircraft cargo transport trailer with shock absorbing function according to claim 5, characterized in that, The pull frame (13) bottom is provided with fixed frame (15), the fixed frame (15) both ends are connected with fixed block (16), the fixed block (16) one side is provided with brake pad (17).

8. The aircraft cargo transport trailer with shock absorbing function according to claim 1, characterized in that, Another connecting frame (2) is fixedly connected with frame (1) through bolt.

9. The aircraft cargo transport trailer with shock absorbing function according to claim 5, characterized in that, The pull frame (13) top is provided with handle (18).

10. The aircraft cargo transport trailer having a shock absorbing function according to claim 1, wherein The wheel shaft (3) both ends are rotatably connected with wheel (19).

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