Movable unloading platform

Abstract

The utility model relates to the technical field of loading and unloading equipment, and discloses a movable unloading platform which comprises a base, universal wheels are rotationally connected to the four corners of the bottom of the base, a mounting frame is arranged above the base, and a translation mechanism for driving the mounting frame to move in the horizontal direction is arranged at the top of the base. Guide plates are fixedly connected to the two ends of the inner side of the mounting frame, an unloading table is slidably connected between the two guide plates, a hoisting mechanism used for driving the unloading table to slide in the vertical direction is arranged at the top end of the inner side of the mounting frame, and a protection mechanism used for protecting the unloading table when the unloading table falls is arranged at the bottom end of the inner side of the mounting frame. The pressure bearing plate can bear the falling impact force of the unloading platform, and the buffer spring is compressed to generate reverse elastic force to buffer the pressure bearing plate, so that the impact force of the unloading platform can be greatly reduced, and the problem that goods are damaged due to impact when the unloading platform falls is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of loading and unloading equipment, and more specifically, to a mobile unloading platform. Background Art

[0002] The cargo compartment of a logistics truck is long. When transferring goods into the compartment, the goods must first be transported to the rear end of the compartment by forklifts and other transportation equipment, and then manually moved to the front end of the compartment. The goods must be neatly stacked from bottom to top, which is cumbersome to operate. When transporting goods with large volume and weight, vertical transportation equipment such as gantry hoisting frames or cranes are required to transfer the goods to the designated location of the compartment, which increases transportation costs.

[0003] In this regard, Chinese patent publication number CN218088839U discloses "a gantry self-movable loading and unloading platform, which provides power for the rotation of the winding wheel through the arrangement of a driving motor, and the winding wheel simultaneously applies an upward pulling force on both sides of the transport platform through the arrangement of a gear chain mechanism, thereby realizing the lifting and lowering of the transport platform; however, during the lifting and lowering process of the transport platform, the gravity of the transport platform and the cargo is mainly borne by the steel rope on the winding wheel. Since the steel rope needs to be repeatedly wound and released, the steel rope is easy to wear. Once the steel rope is severely worn, it is easy to break, which causes the transport platform to fall. The above patent does not provide any protection for the transport platform, which causes the cargo to be damaged or people to be injured when the transport platform falls. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a mobile unloading platform, which has the advantage of being able to provide buffering protection for the unloading platform to avoid damage to the goods.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mobile unloading platform, comprising a base, the four corners of the bottom of the base are rotatably connected with universal wheels, a mounting frame is arranged above the base, a translation mechanism for driving the mounting frame to move in the horizontal direction is arranged on the top of the base, guide plates are fixedly connected at both ends of the inner side of the mounting frame, the unloading platform is slidably connected between the two guide plates, a lifting mechanism for driving the unloading platform to slide in the vertical direction is arranged at the top of the inner side of the mounting frame, and a protective mechanism for protecting the unloading platform when it falls is arranged at the bottom end of the inner side of the mounting frame.

[0006] As a preferred technical solution of the utility model, the protective mechanism includes a sleeve, which is fixedly connected to the bottom wall on the inner side of the mounting frame, and a friction block is slidably connected to the inner side of the sleeve, and a sleeve rod is fixedly connected to the top of the friction block, and the top of the sleeve rod passes through the top wall of the sleeve and extends to the top of the sleeve, and the top of the sleeve rod is fixedly connected to a pressure plate.

[0007] As a preferred technical solution of the utility model, the protective mechanism also includes a buffer spring, which is placed at the bottom end of the inner side of the sleeve, the top end of the buffer spring abuts against the friction block, and the bottom end of the buffer spring abuts against the bottom wall of the inner side of the sleeve.

[0008] As a preferred technical solution of the present invention, the translation mechanism includes two parallel guide rails, both of which are fixedly connected to the top of the base, both of which are slidably connected to a movable seat, the tops of the two movable seats are fixedly connected to the bottom wall of the mounting frame, the middle part of the top surface of the base is rotatably connected to a screw rod, a connecting block is threadedly connected to the screw rod, the top of the connecting block is fixedly connected to the bottom wall of the mounting frame, and one end of the screw rod is fixedly connected to a handwheel.

[0009] As a preferred technical solution of the utility model, the lifting mechanism includes a rotating shaft, which is rotatably connected to the top of the inner side of the mounting frame, and a reel is fixedly connected to the rotating shaft. Steel ropes are wound at both ends of the reel, and the ends of the two steel ropes away from the reel are respectively fixedly connected to the two ends of the top of the unloading platform, and a driving member for driving the rotating shaft to rotate is provided at the top of the outer side of the mounting frame.

[0010] As a preferred technical solution of the utility model, the driving member includes a worm wheel, which is fixedly connected to one end of the rotating shaft, and one side of the mounting frame is rotatably connected to a worm, the worm is meshed with the worm wheel, and the bottom end of the worm is fixedly connected to a handwheel 2.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: when the unloading platform falls, the guide plate can guide the unloading platform to prevent the unloading platform from tipping over, and the pressure plate can withstand the impact force of the unloading platform falling. At the same time, the friction block and the inner wall of the sleeve rub against each other to consume the impact force of the unloading platform falling, and the buffer spring is compressed to generate reverse elastic force to buffer the pressure plate. This can greatly reduce the impact force of the unloading platform and effectively avoid the problem of damage to the goods caused by impact when the unloading platform falls. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a mobile unloading platform of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the protection mechanism of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the translation mechanism of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the lifting mechanism of the utility model;

[0016] Figure 5 It is a structural schematic diagram of the driving member of the utility model.

[0017] In the figure: 1. base; 2. universal wheel; 3. mounting frame; 4. translation mechanism; 41. guide rail; 42. movable seat; 43. connecting block; 44. screw rod; 45. handwheel one; 5. guide plate; 6. unloading platform; 7. lifting mechanism; 71. rotating shaft; 72. reel; 73. steel rope; 74. driving part; 741. worm gear; 742. worm; 743. handwheel two; 8. protection mechanism; 81. sleeve; 82. sleeve rod; 83. friction block; 84. pressure plate; 85. buffer spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figures 1 to 5 As shown, the utility model provides a mobile unloading platform, including a base 1, the four corners of the bottom of the base 1 are rotatably connected with universal wheels 2, a mounting frame 3 is arranged above the base 1, a translation mechanism 4 for driving the mounting frame 3 to move in the horizontal direction is arranged on the top of the base 1, guide plates 5 are fixedly connected to both ends of the inner side of the mounting frame 3, an unloading platform 6 is slidably connected between the two guide plates 5, a lifting mechanism 7 for driving the unloading platform 6 to slide in the vertical direction is arranged at the top of the inner side of the mounting frame 3, and a protective mechanism 8 for protecting the unloading platform 6 when it falls is arranged at the bottom of the inner side of the mounting frame 3;

[0020] When loading, the goods are placed on the unloading platform 6, and then the installation frame 3 is driven to move in the horizontal direction by the translation mechanism 4, so that the unloading platform 6 is close to the truck compartment, and then the unloading platform 6 is lifted as a whole by the lifting mechanism 7, so that the unloading platform 6 can transport the goods to the truck compartment position, thereby realizing the loading work; similarly, when unloading, the goods are moved to the unloading platform 6, and then the unloading platform 6 is lowered as a whole by the lifting mechanism 7, thereby transporting the goods to the ground position, thereby realizing the unloading work.

[0021] The protection mechanism 8 includes a sleeve 81, which is fixedly connected to the bottom wall of the inner side of the mounting frame 3, a friction block 83 is slidably connected to the inner side of the sleeve 81, a sleeve rod 82 is fixedly connected to the top of the friction block 83, the top of the sleeve rod 82 passes through the top wall of the sleeve 81 and extends to the top of the sleeve 81, a pressure plate 84 is fixedly connected to the top of the sleeve rod 82, a buffer spring 85 is placed at the bottom end of the inner side of the sleeve 81, the top end of the buffer spring 85 contacts the friction block 83, and the bottom end of the buffer spring 85 contacts the bottom wall of the inner side of the sleeve 81;

[0022] When the unloading platform 6 falls, the guide plate 5 can guide the unloading platform 6 to prevent the unloading platform 6 from tipping over, and the pressure plate 84 can withstand the impact force of the unloading platform 6 falling. At the same time, the friction block 83 and the inner wall of the sleeve 81 rub against each other to consume the impact force of the unloading platform 6 falling, and the buffer spring 85 is compressed to generate a reverse elastic force to buffer the pressure plate 84. This can greatly reduce the impact force of the unloading platform 6 and effectively avoid the problem of damage to the goods caused by the impact when the unloading platform 6 falls.

[0023] Among them, the translation mechanism 4 includes two parallel guide rails 41, the two guide rails 41 are fixedly connected to the top of the base 1, and the two guide rails 41 are slidably connected with a movable seat 42. The top of the two movable seats 42 are fixedly connected to the bottom wall of the mounting frame 3. The middle part of the top surface of the base 1 is rotatably connected with a screw rod 44, and a connecting block 43 is threadedly connected to the screw rod 44. The top of the connecting block 43 is fixedly connected to the bottom wall of the mounting frame 3, and one end of the screw rod 44 is fixedly connected to a hand wheel 45; the screw rod 44 is rotated by rotating the hand wheel 45, which makes the connecting block 43 translate in the horizontal direction, and the mounting frame 3 drives the unloading platform 6 to translate in the horizontal direction, thereby realizing the horizontal transfer of goods on the unloading platform 6.

[0024] Among them, the lifting mechanism 7 includes a rotating shaft 71, which is rotatably connected to the top end of the inner side of the mounting frame 3, and a drum 72 is fixedly connected to the rotating shaft 71. Steel ropes 73 are wound at both ends of the drum 72. The ends of the two steel ropes 73 away from the drum 72 are respectively fixedly connected to the two ends of the top of the unloading platform 6. A driving member 74 for driving the rotating shaft 71 to rotate is provided at the top end of the outer side of the mounting frame 3. The driving member 74 includes a worm gear 741, which is fixedly connected to one end of the rotating shaft 71. A worm 742 is rotatably connected to one side of the mounting frame 3, and the worm 742 is meshed with the worm wheel 741. The bottom end of the worm 742 is fixedly connected to a handwheel 2 743.

[0025] Working principle: When loading, the goods are placed on the unloading platform 6, and the screw rod 44 is rotated by turning the hand wheel 1 45, so that the connecting block 43 is translated in the horizontal direction, and the mounting frame 3 drives the unloading platform 6 to translate in the horizontal direction, so that the goods on the unloading platform 6 are horizontally close to the truck compartment, and then the hand wheel 2 743 is turned to rotate the worm 742, so that the worm wheel 741 drives the rotating shaft 71 to rotate synchronously, and the drum 72 reels the steel rope 73, so that the steel rope 73 lifts the unloading platform 6 to the truck compartment for loading;

[0026] When unloading, the goods are moved to the unloading platform 6, and then the hand wheel 2 743 is rotated in the opposite direction to make the drum 72 release the steel rope 73, so that the unloading platform 6 can be lowered as a whole, thereby transporting the goods to the ground position, thereby realizing the unloading work.

Claims

1. A mobile unloading platform, comprising a base (1), wherein the four corners of the bottom of the base (1) are rotatably connected to universal wheels (2), characterized in that: A mounting frame (3) is arranged above the base (1), a translation mechanism (4) for driving the mounting frame (3) to move in the horizontal direction is arranged on the top of the base (1), guide plates (5) are fixedly connected to both ends of the inner side of the mounting frame (3), a loading platform (6) is slidably connected between the two guide plates (5), a lifting mechanism (7) for driving the loading platform (6) to slide in the vertical direction is arranged at the top end of the inner side of the mounting frame (3), and a protection mechanism (8) for protecting the loading platform (6) when it falls is arranged at the bottom end of the inner side of the mounting frame (3).

2. A mobile unloading platform according to claim 1, characterized in that: The protection mechanism (8) comprises a sleeve (81), the sleeve (81) being fixedly connected to the bottom wall of the inner side of the mounting frame (3), the inner side of the sleeve (81) being slidably connected to a friction block (83), the top of the friction block (83) being fixedly connected to a sleeve rod (82), the top end of the sleeve rod (82) passing through the top wall of the sleeve (81) and extending to the top of the sleeve (81), and the top of the sleeve rod (82) being fixedly connected to a pressure plate (84).

3. A mobile unloading platform according to claim 2, characterized in that: The protection mechanism (8) further comprises a buffer spring (85), wherein the buffer spring (85) is placed at the bottom end of the inner side of the sleeve (81), the top end of the buffer spring (85) abuts against the friction block (83), and the bottom end of the buffer spring (85) abuts against the bottom wall of the inner side of the sleeve (81).

4. The mobile unloading platform according to claim 1, characterized in that: The translation mechanism (4) comprises two parallel guide rails (41), the two guide rails (41) are fixedly connected to the top of the base (1), the two guide rails (41) are slidably connected to a movable seat (42), the top ends of the two movable seats (42) are fixedly connected to the bottom wall of the mounting frame (3), a screw rod (44) is rotatably connected to the middle of the top surface of the base (1), a connecting block (43) is threadedly connected to the screw rod (44), the top of the connecting block (43) is fixedly connected to the bottom wall of the mounting frame (3), and one end of the screw rod (44) is fixedly connected to a hand wheel (45).

5. The mobile unloading platform according to claim 1, characterized in that: The lifting mechanism (7) comprises a rotating shaft (71), wherein the rotating shaft (71) is rotatably connected to the top end of the inner side of the mounting frame (3), a drum (72) is fixedly connected to the rotating shaft (71), and steel ropes (73) are wound at both ends of the drum (72), and the ends of the two steel ropes (73) away from the drum (72) are respectively fixedly connected to the two ends of the top of the unloading platform (6), and a driving member (74) for driving the rotating shaft (71) to rotate is arranged at the top end of the outer side of the mounting frame (3).

6. The mobile unloading platform according to claim 5, characterized in that: The driving member (74) comprises a worm wheel (741), the worm wheel (741) being fixedly connected to one end of the rotating shaft (71), a worm (742) being rotatably connected to one side of the mounting frame (3), the worm (742) being meshed with the worm wheel (741), and a second hand wheel (743) being fixedly connected to the bottom end of the worm (742).

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