A mobile logistics transport dock leveler

Abstract

The utility model relates to the technology field of drive -on loading bridges, especially relates to a mobile logistics transportation drive -on loading bridge. The utility model provides a mobile logistics transportation drive -on loading bridge, including mobile frame, moving wheel, drive -on loading bridge board, turnover bottom plate, extension bridge board, guide frame, positioning wheel, brake positioning disc, connecting rod, drive component and friction component, and the top of mobile frame is designed to be inclined left low right high, and the top is provided with drive -on loading bridge board, the left end of drive -on loading bridge board is rotatably connected with turnover bottom plate, and drive -on loading bridge board fixedly installs extension bridge board in horizontal state. Drive component and friction component cooperate and operate, and the abutment of brake positioning disc and positioning wheel realizes the rotation lock of moving wheel, the friction of the contact of positioning rod and ground, and the double brake structure effectively limits the rotation and displacement of mobile frame, provides stable and reliable support for loading and unloading operation, avoids the goods drop or safety accident caused by shaking.

Description

Technical Field

[0001] This utility model relates to the field of loading ramp technology, and in particular to a mobile logistics transportation loading ramp. Background Technology

[0002] In modern logistics and transportation, mobile loading ramps are widely used in warehouses, docks, freight stations, and other locations as key equipment for rapid loading and unloading of goods. Traditional mobile loading ramps primarily achieve their movement through a simple roller structure. Once they reach the designated location, they typically rely solely on manual brakes or single-point positioning devices to lock the rollers and maintain the ramp's stability. However, this single positioning method has significant drawbacks: firstly, the friction between the manual brake and the rollers is limited, and frequent cargo handling and vehicle vibrations during loading and unloading can easily cause the brakes to loosen, leading to ramp displacement; secondly, single-point positioning cannot effectively constrain the ramp's rotational freedom, making it highly susceptible to swaying or overturning during the loading and unloading of heavy goods or rapid handling operations. This not only affects loading and unloading efficiency but may also cause serious safety accidents such as cargo damage and personal injury.

[0003] Therefore, how to design a mobile loading ramp with an efficient, reliable, and stable positioning mechanism to achieve multi-dimensional restrictions on the freedom of movement of equipment and improve the stability and safety of loading and unloading operations has become an urgent technical problem to be solved in the current logistics loading and unloading equipment field. Utility Model Content

[0004] In order to overcome the shortcomings mentioned in the background art, the technical problem of this utility model is to provide a mobile logistics transportation loading bridge.

[0005] The technical implementation scheme of this utility model is as follows: A mobile logistics transportation loading ramp includes a mobile frame, mobile wheels, loading ramp plate, flip-over base plate, extension ramp plate, guide frame, positioning wheel, brake positioning disc, connecting rod, drive assembly, and friction assembly. The top surface of the mobile frame is designed with a slope that is lower on the left and higher on the right. The loading ramp plate is installed on the top. The flip-over base plate is rotatably connected to the left end of the loading ramp plate. The extension ramp plate is fixedly installed on the loading ramp plate in a horizontal state. Multiple mobile wheels are rotatably installed on the front and rear sides of the bottom of the mobile frame. Positioning wheels are connected to the inner ends of the mobile wheels. Guide frames are slidably connected to the front and rear sides of the bottom of the mobile frame. Three sets of connecting rods are fixedly connected at intervals on the outer ends of the guide frames. There are two rods in each set. The outer ends of the connecting rods are connected to brake positioning discs. The brake positioning discs are precisely aligned with the positioning wheels on the corresponding sides in the axial direction. A drive assembly is provided at the bottom of the mobile frame, and a friction assembly is provided on the guide frame.

[0006] Furthermore, the loading bridge and extension bridge are made of anti-slip patterned steel plates and are processed by roll forming process.

[0007] Furthermore, the wheels are made of solid rubber tires with a high-strength steel cord layer embedded inside.

[0008] Furthermore, the drive assembly includes a hydraulic cylinder, a push rod, a slide rod, and a telescopic spring. A hydraulic cylinder with double telescopic rods is installed in the middle of the bottom of the moving frame. Push rods are connected to the front and rear telescopic rods respectively. The push rods are slidably connected to the bottom of the moving frame. Three sets of slide rods are fixedly connected to each push rod at intervals, with two slide rods in each set. The slide rods are slidably connected to the guide frame on the corresponding side, and a telescopic spring is sleeved on the outside of each slide rod. The two ends of the telescopic spring are connected to the guide frame and the push rod respectively.

[0009] Furthermore, the friction assembly includes a V-shaped hinge frame, positioning rods, and compression springs. Three sets of positioning rods are slidably connected through the guide frame, with two rods in each set. Compression springs are connected between the positioning rods and the guide frame. A V-shaped hinge frame is installed on the positioning rod. The two ends of the V-shaped hinge frame are hinged to the connecting rods and sliding rods on the corresponding sides through spherical bearings, forming a lever transmission mechanism.

[0010] Furthermore, the brake positioning disc is made of gray cast iron or ductile iron.

[0011] The present invention has the following advantages: 1. The drive component and the friction component work together, the brake positioning disc abuts against the positioning wheel to lock the rotation of the moving wheel, the positioning rod contacts the ground to generate friction, and the double braking structure effectively restricts the rotation and displacement of the moving frame, providing stable and reliable support for loading and unloading operations, and avoiding cargo falling or safety accidents caused by shaking.

[0012] 2. Mobile logistics loading ramps, with their inclined loading ramps, rotating flip-up base plates, and horizontally extending ramps, can quickly and accurately dock with the ground and truck beds, forming a stable loading and unloading ramp. This significantly improves cargo loading and unloading efficiency, reduces manual handling intensity and time costs, and optimizes the logistics transportation loading and unloading process. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the movable frame, movable wheels, and guide frame.

[0015] Figure 3 This is a three-dimensional structural diagram of the brake positioning disc, connecting rod, and V-shaped hinge frame of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the V-shaped hinge frame, positioning rod, and compression spring components of this utility model.

[0017] Figure 5 This is a schematic diagram of the planar structure of this utility model.

[0018] In the attached diagrams: 1: Moving frame, 101: Moving wheel, 2: Boarding bridge, 3: Tilting base plate, 4: Extension bridge, 5: Hydraulic cylinder, 6: Push rod, 7: Slide rod, 8: Guide frame, 9: Telescopic spring, 10: Positioning wheel, 11: Brake positioning disc, 12: Connecting rod, 13: V-shaped articulated frame, 14: Positioning rod, 15: Compression spring. Detailed Implementation

[0019] Example: A mobile logistics transportation loading ramp, such as Figures 1-5 As shown, the system includes a mobile frame 1, mobile wheels 101, loading ramp 2, tilting base plate 3, extension ramp 4, guide frame 8, positioning wheels 10, brake positioning disc 11, connecting rod 12, drive assembly, and friction assembly. The top surface of the mobile frame 1 is designed with a slope that is lower on the left and higher on the right. The loading ramp 2 is installed on the top of the mobile frame 1. The tilting base plate 3 is rotatably connected to the left end of the loading ramp 2. During operation, the tilting base plate 3 directly forms a support surface with the ground. The loading ramp 2 is fixedly installed with a horizontal extension ramp 4 for precise docking with the loading platform of the transport vehicle. The loading ramp 2 and the extension ramp 4 are made of anti-slip patterned steel plate and processed by roll forming process, which has good anti-slip performance and effectively increases the friction of forklifts and other handling equipment when traveling on the bridge surface, ensuring operational safety. Multiple mobile wheels are rotatably installed on the front and rear sides of the bottom of the mobile frame 1. The moving wheel 101 is made of solid rubber tires. The rubber material has the characteristics of high elasticity, wear resistance and anti-aging. The tires are embedded with high-strength steel cord layers to enhance the tire's strength and load-bearing capacity. The inner end of the moving wheel 101 is connected to the positioning wheel 10. The bottom of the moving frame 1 is slidably connected to the front and rear sides of the bottom. The outer end of the guide frame 8 is fixedly connected with three sets of connecting rods 12 at intervals, with two rods in each set. The outer end of the connecting rod 12 is welded with a brake positioning disc 11. The brake positioning disc 11 is precisely aligned with the positioning wheel 10 on the corresponding side in the axial direction. The brake positioning disc 11 is made of gray cast iron or ductile iron and is made by precision casting and machining processes to ensure the fit and friction when in contact with the positioning wheel 10. The bottom of the moving frame 1 is equipped with a drive assembly, and the guide frame 8 is equipped with a friction assembly.

[0020] like Figures 2-5 As shown, the drive assembly includes a hydraulic cylinder 5, a push rod 6, a slide rod 7, and a telescopic spring 9. The hydraulic cylinder 5 with double telescopic rods is bolted to the middle of the bottom of the moving frame 1. Push rods 6 are connected to the front and rear telescopic rods respectively. The push rods 6 are slidably connected to the bottom of the moving frame 1. Three sets of slide rods 7 are fixedly connected to the push rods 6 at intervals, with two rods in each set. The slide rods 7 are slidably connected to the guide frame 8 on the corresponding side. The outside of each slide rod 7 is fitted with a telescopic spring 9. The two ends of the telescopic spring 9 are connected to the guide frame 8 and the push rod 6 respectively.

[0021] like Figures 3-4 As shown, the friction assembly includes a V-shaped hinge frame 13, a positioning rod 14, and a compression spring 15. Three sets of positioning rods 14 are slidably connected through the guide frame 8, with two rods in each set. A compression spring 15 is connected between each positioning rod 14 and the guide frame 8. The V-shaped hinge frame 13 is installed on the positioning rod 14. The two ends of the V-shaped hinge frame 13 are respectively hinged to the connecting rod 12 and the slide rod 7 on the corresponding side through a joint bearing, forming a lever transmission mechanism.

[0022] In actual operation, the device is first propelled by manual or mechanical traction. The moving wheel 101 rotates around its rotational axis under the action of rolling friction, enabling the device to move flexibly. After the device moves to the target position, the extended bridge plate 4 is adjusted to achieve precise docking with the cargo platform of the transport vehicle, while the bottom plate 3 is flipped to form stable support with the ground, thus constructing a complete loading and unloading ramp. To ensure the stability of the device during loading and unloading operations, hydraulic cylinder 5 is activated. The front and rear telescopic rods of hydraulic cylinder 5 extend synchronously, driving push rod 6 and slide rod 7 to move outward. Slide rod 7 pushes guide frame 8 and its components to move outward synchronously through telescopic spring 9. When brake positioning disc 11 moves to abut against positioning wheel 10 on moving wheel 101, hydraulic cylinder 5 continues to extend, push rod 6 and slide rod 7 continue to move, while guide frame 8 moves to its limit and cannot move further. Telescopic spring 9 then compresses, generating static friction between brake positioning disc 11 and positioning wheel 10. The rotation of moving wheel 101 is locked through the friction braking principle. At the same time, the continuous movement of slide rod 7 is amplified by the lever effect of V-shaped hinge frame 13, pushing positioning rod 14 to overcome the elastic force of compression spring 15 and move downward, so that the bottom end of positioning rod 14 contacts the ground, forming a multi-point support structure. The sliding friction between positioning rod 14 and the ground further restricts the horizontal displacement of moving frame 1. The dual braking mechanism significantly improves the device's anti-overturning and anti-slip performance. After the loading and unloading operation is completed, the control hydraulic cylinder 5 retracts its telescopic rod, and the telescopic spring 9 and compression spring 15 drive each component to reset under the action of elastic potential energy. The brake positioning disc 11 separates from the positioning wheel 10, the positioning rod 14 is lifted off the ground, and the moving wheel 101 returns to a free rotation state, which facilitates the relocation of the device.

Claims

1. A mobile loading ramp for logistics transportation, characterized in that: The system includes a mobile frame (1), mobile wheels (101), a loading bridge (2), a tilting base plate (3), an extension bridge plate (4), a guide frame (8), positioning wheels (10), a brake positioning disc (11), a connecting rod (12), a drive assembly, and a friction assembly. The top surface of the mobile frame (1) is designed with a slope that is lower on the left and higher on the right. The loading bridge plate (2) is installed on the top of the mobile frame (1). The tilting base plate (3) is rotatably connected to the left end of the loading bridge plate (2). The extension bridge plate (4) is fixedly installed on the loading bridge plate (2) in a horizontal position. The front and rear sides of the bottom of the mobile frame (1) are both rotatable. Multiple movable wheels (101) are installed, and positioning wheels (10) are connected to the inner ends of each movable wheel (101). Guide frames (8) are slidably connected to the front and rear sides of the bottom of the movable frame (1). Three sets of connecting rods (12) are fixedly connected at intervals to the outer ends of the guide frames (8), with two rods in each set. Brake positioning discs (11) are connected to the outer ends of the connecting rods (12), and the brake positioning discs (11) are precisely aligned with the positioning wheels (10) on the corresponding sides in the axial direction. A drive assembly is provided at the bottom of the movable frame (1), and a friction assembly is provided on the guide frames (8).

2. A mobile logistics transport loading ramp according to claim 1, characterized in that: The loading bridge (2) and the extension bridge (4) are made of anti-slip patterned steel plates and are processed by roll forming process.

3. A mobile logistics transport loading ramp according to claim 2, characterized in that: The moving wheel (101) is made of solid rubber tires with a high-strength steel cord layer embedded inside.

4. A mobile logistics transport loading ramp according to claim 3, characterized in that: The drive assembly includes a hydraulic cylinder (5), a push rod (6), a slide rod (7), and a telescopic spring (9). A hydraulic cylinder (5) with double telescopic rods is installed in the middle of the bottom of the moving frame (1). Push rods (6) are connected to the front and rear telescopic rods respectively. The push rods (6) are slidably connected to the bottom of the moving frame (1). Three sets of slide rods (7) are fixedly connected at intervals on each push rod (6), with two rods in each set. The slide rods (7) are slidably connected to the guide frame (8) on the corresponding side. The slide rods (7) are all fitted with telescopic springs (9) on the outside. The two ends of the telescopic springs (9) are connected to the guide frame (8) and the push rods (6) respectively.

5. A mobile logistics transport loading ramp according to claim 4, characterized in that: The friction assembly includes a V-shaped hinge frame (13), a positioning rod (14), and a compression spring (15). Three sets of positioning rods (14) are slidably connected through the guide frame (8), with two rods in each set. A compression spring (15) is connected between the positioning rod (14) and the guide frame (8). A V-shaped hinge frame (13) is installed on the positioning rod (14). The two ends of the V-shaped hinge frame (13) are hinged to the connecting rod (12) and the slide rod (7) on the corresponding side through a joint bearing, forming a lever transmission mechanism.

6. A mobile logistics transport loading ramp according to claim 5, characterized in that: The brake positioning disc (11) is made of gray cast iron or ductile iron.

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