Large express item loading device for logistics transportation

Abstract

The invention provides a large express item loading device for logistics transportation, and relates to the technical field of express item loading, the large express item loading device comprises a lifting platform base, a rotating rod is rotatably connected to the top of the lifting platform base, a sliding rod is slidably connected to the other end of the top of the lifting platform base, and fixing pieces are fixed to the surface of a second connecting rod located at the top end of the rotating rod in an array mode; and connecting seats are fixed to the surfaces of the fixing pieces, the other ends of the sliding rods are rotationally connected with a lifting table, the bottom of the lifting table is in sliding connection with the other ends of the rotating rods, and one end of the lifting table is rotationally connected with a containing table. A worm rotating motor drives a worm to rotate, the worm drives a worm gear to rotate, the placing table is driven to rotate slowly, and when the included angle between the placing table and the lifting table is smaller than 135 degrees, the lifting table is lifted until the lifting table is parallel and aligned with a transport vehicle. And the large express parcels slide into the lifting platform, so that workers on the vehicle can carry the large express parcels conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of express delivery loading, and in particular to a large express delivery loading device for logistics transportation. Background Art

[0002] At present, due to the rapid development of the Internet, people often consume online in their daily lives and are gradually unable to do without express delivery, which has led to the rapid development of the logistics and transportation industry.

[0003] In the prior art, some express deliveries often need to be loaded and stored during transportation. During loading, the express deliveries are mainly delivered to the staff on the vehicle by the staff under the vehicle. However, when encountering large express items, this method is not only time-consuming and labor-intensive, but also has great safety hazards. Moreover, if the express item is accidentally dropped, it is easy to cause damage to the express item. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose a large-scale express delivery loading device for logistics transportation.

[0005] In order to achieve the above-mentioned objectives, the present invention adopts the following technical scheme: a large-scale express loading device for logistics transportation, including a lifting platform base, the top of the lifting platform base is rotatably connected with a rotating rod, and a second connecting rod is fixed in an array between the rotating rods, the second connecting rod is respectively located at the top end and the bottom end of the rotating rod, the other end of the top of the lifting platform base is slidably connected with a sliding rod, and a first connecting rod is fixed between the sliding rods, and a fixing piece is fixed in an array on the surface of the second connecting rod located at the top end of the rotating rod, and a connecting seat is fixed on the surface of each fixing piece, the connecting seat is driven by a hydraulic cylinder, and the bottom of the hydraulic cylinder is rotatably connected to the first connecting rod, the other end of the sliding rod is rotatably connected to the lifting platform, and the bottom of the lifting platform is slidably connected to the other end of the rotating rod, one end of the lifting platform is rotatably connected to a placing platform, and the placing platform is driven by a driving assembly.

[0006] Preferably, the driving assembly includes a worm wheel, which is fixedly connected to the side of the placement platform, and a worm is meshed on the surface of the worm wheel. The worm is driven by a worm rotating motor, and both ends of the worm are rotatably connected to bearing seats, and the bearing seats are fixed to the circumference of the lifting platform.

[0007] Preferably, a support rod is slidably connected to the middle of the lifting platform base, the bottom of the support rod is set as a support seat, and the top of the support rod is set as a limit plate. A spring is embedded on the surface of the support rod, and the spring is set between the lifting platform base and the limit plate. The limit plate is driven by a cylinder, and the cylinder is fixed to the top of the lifting platform base. When the lifting platform and the placement platform are working, the universal wheel is prone to sliding, resulting in instability of the loading device during operation. To address this problem, the present invention adopts a support structure. When moving the loading device, the cylinder is opened to drive the limit plate to move upward, so that the support seat is separated from the ground. After the loading device moves to the loading position, the cylinder drives the limit plate to move downward, so that the support seat is in contact with the ground. The spring plays a buffering role to prevent the support seat from being damaged by a large impact force at the moment of contact with the ground.

[0008] Preferably, the lifting platform side wall array is rotatably connected to a transmission roller, the surface of the transmission roller is meshed with a conveyor belt, and the transmission roller is driven by an external motor. This facilitates the direct delivery of large express items to the transport vehicle without the need for on-board personnel to carry them, further improving loading efficiency.

[0009] Preferably, the helix lead angle of the worm is smaller than the equivalent friction angle between the worm and the worm wheel meshing teeth. When the helix lead angle of the worm is smaller than the equivalent friction angle between the worm and the worm wheel meshing teeth, the worm gear structure has self-locking property, that is, the worm can drive the worm wheel to rotate, but the worm wheel cannot drive the worm to rotate.

[0010] Preferably, elastic belt fixing members are fixed in arrays on both sides of the placement table, so as to facilitate fixing large express items and prevent the express items from rolling off when the placement table rotates.

[0011] Preferably, a fixing rod is fixed between the hydraulic cylinders to improve the relative stability of the hydraulic cylinders.

[0012] Beneficial Effects In the prior art, it is often necessary to load and store some express parcels during transportation. During loading, the express parcels are mainly delivered to the staff on the vehicle by the staff under the vehicle. However, when encountering large express parcels, this method is not only time-consuming and labor-intensive, but also has great safety hazards. Moreover, if the express parcels are accidentally dropped, the express parcels may be easily damaged. In view of such problems, the present invention adopts a lifting automatic transfer loading device, moves the device to the side of the transport vehicle, opens the hydraulic cylinder to drive the connecting seat to move, drives the rotating rod to rotate counterclockwise, thereby drives the sliding rod to slide to the left on the top of the lifting platform base, raises the lifting platform until it is aligned parallel to the transport vehicle, and then places the large express parcel on the placement platform, turns on the worm rotation motor to drive the worm to rotate, and the worm drives the worm wheel to rotate, thereby driving the placement platform to rotate slowly. When the angle between the placement platform and the lifting platform is less than 135 degrees, the large express parcel slides onto the lifting platform, which is convenient for the staff on the vehicle to carry. This not only saves time and labor, but also has a high safety factor, and avoids the situation where large express parcels are prone to falling during manual transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the placement table of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the driving assembly of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the hydraulic cylinder in the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the support structure in the present invention.

[0014] Legend: 1. Lifting platform base; 2. Universal wheel; 3. Sliding rod; 4. Rotating rod; 5. Hydraulic cylinder; 6. First connecting rod; 7. Fixed rod; 8. Lifting platform; 9. Conveyor belt; 10. Placing table; 11. Elastic belt fixing piece; 12. Second connecting rod; 13. Worm gear; 14. Worm; 15. Worm rotating motor; 16. Fixing piece; 17. Connecting seat; 18. Support rod; 1801, Limiting plate; 19. Spring; 20. Cylinder. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0016] The specific embodiments of the present invention are described below with reference to the accompanying drawings. Specific embodiment: Reference Figure 1-5A large express loading device for logistics transportation includes a lifting platform base 1, a rotating rod 4 is rotatably connected to the top of the lifting platform base 1, and a second connecting rod 12 is fixed in an array between the rotating rods 4, and the second connecting rod 12 is respectively located at the top and the bottom of the rotating rod 4, and the other end of the top of the lifting platform base 1 is slidably connected to the sliding rod 3, and a first connecting rod 6 is fixed between the sliding rods 3, and a fixing member 16 is fixed in an array on the surface of the second connecting rod 12 located at the top of the rotating rod 4, and a connecting seat 17 is fixed on the surface of the fixing member 16, and the connecting seat 17 is driven by a hydraulic cylinder 5, and a fixing rod 7 is fixed between the hydraulic cylinders 5, which improves the relative stability of the hydraulic cylinder 5. The bottom of the hydraulic cylinder 5 is rotatably connected to the first connecting rod 6, and the other end of the sliding rod 3 is rotatably connected to the lifting platform 8, and the bottom of the lifting platform 8 is slidably connected to the other end of the rotating rod 4, and one end of the lifting platform 8 is rotatably connected to the placing platform 10, and elastic belt fixing members 11 are fixed in an array on both sides of the placing platform 10. It is convenient to fix large express items and prevent the express items from rolling down when the placing platform 10 rotates. The placing platform 10 is driven by a driving component. The driving assembly includes a worm wheel 13, which is fixedly connected to the side of the placement platform 10, and a worm 14 is meshed on the surface of the worm wheel 13. The worm 14 is driven by a worm rotating motor 15. Both ends of the worm 14 are rotatably connected to bearing seats, and the bearing seats are fixed on the circumference of the lifting platform 8. The helical lead angle of the worm 14 is less than the equivalent friction angle between the meshing teeth of the worm 14 and the worm wheel 13. When the helical lead angle of the worm 14 is less than the equivalent friction angle between the meshing teeth of the worm 14 and the worm wheel 13, the worm gear structure has self-locking properties, that is, the worm 14 can drive the worm wheel 13 to rotate, and the worm wheel 13 cannot drive the worm 14 to rotate. The side wall array of the lifting platform 8 is rotatably connected to a transmission roller, and the surface of the transmission roller is meshed with a conveyor belt 9, and the transmission roller is driven by an external motor. It is convenient for large express parcels to be directly transported to the transport vehicle without the need for on-board personnel to carry them, further improving the loading efficiency.

[0018] The middle part of the lifting platform base 1 is slidably connected with a support rod 18, the bottom of the support rod 18 is set as a support seat, and the top of the support rod 18 is set as a limit plate 1801. A spring 19 is embedded on the surface of the support rod 18, and the spring 19 is set between the lifting platform base 1 and the limit plate 1801. The limit plate 1801 is driven by a cylinder 20, and the cylinder 20 is fixed on the top of the lifting platform base 1. When the lifting platform 8 and the placing platform 10 are working, the universal wheel 2 is prone to slide, resulting in instability of the loading device during operation. To address this problem, the present invention adopts a support structure. When the loading device is moved, the cylinder 20 is opened to drive the limit plate 1801 to move upward, so that the support seat is separated from the ground. After the loading device moves to the loading position, the cylinder 20 drives the limit plate 1801 to move downward, so that the support seat is in contact with the ground. The spring 19 plays a buffering role to prevent the support seat from being damaged by a large impact force at the moment of contact with the ground.

[0019] In the prior art, it is often necessary to load and store some express during transportation. During loading, the express is mainly delivered to the staff on the vehicle by the staff under the vehicle. However, when encountering large express items, this method is not only time-consuming and labor-intensive, but also has great safety hazards. If the express items accidentally fall, it is easy to cause damage to the express items. In response to such problems, the present invention adopts a lifting automatic transfer loading device, moves the device to the side of the transport vehicle, opens the hydraulic cylinder 5 to drive the connecting seat 17 to move, drives the rotating rod 4 to rotate counterclockwise, thereby drives the sliding rod 3 to slide leftward on the top of the lifting platform base 1, raises the lifting platform 8 until it is aligned parallel to the transport vehicle, and then places the large express items on the placement platform 10, opens the worm rotating motor 15 to drive the worm 14 to rotate, and the worm 14 drives the worm wheel 13 to rotate, thereby driving the placement platform 10 to rotate slowly. When the angle between the placement platform 10 and the lifting platform 8 is less than 135 degrees, the large express items slide onto the lifting platform 8, which is convenient for the staff on the vehicle to carry. It not only saves time and effort, but also has a high safety factor, and avoids the situation where large express items are prone to falling during manual transportation.

[0020] The working principle of the present invention is: when the loading device is moved, the cylinder 20 is opened to drive the limit plate 1801 to move upward, so that the support seat is separated from the ground. After the loading device moves to the loading position, the cylinder 20 drives the limit plate 1801 to move downward, so that the support seat is in contact with the ground, and the hydraulic cylinder 5 is opened to drive the connecting seat 17 to move, driving the rotating rod 4 to rotate counterclockwise, thereby driving the sliding rod 3 to slide to the left on the top of the lifting platform base 1, raising the lifting platform 8 until it is aligned parallel to the transport vehicle, and then placing the large express items on the placement platform 10, turning on the worm rotating motor 15 to drive the worm 14 to rotate, and the worm 14 drives the worm wheel 13 to rotate, thereby driving the placement platform 10 to rotate slowly. When the angle between the placement platform 10 and the lifting platform 8 is less than 135 degrees, the large express items slide onto the lifting platform 8 and are transported to the vehicle by the conveyor belt.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A large express delivery loading device for logistics transportation, comprising a lifting platform base (1), wherein a universal wheel (2) is fixed to the bottom array of the lifting platform base (1), characterized in that: The top of the lifting platform base (1) is rotatably connected to a rotating rod (4), and a second connecting rod (12) is fixed in an array between the rotating rods (4), and the second connecting rod (12) is respectively located at the top end and the bottom end of the rotating rod (4). The other end of the top of the lifting platform base (1) is slidably connected to a sliding rod (3), and a first connecting rod (6) is fixed between the sliding rods (3). A fixing member (16) is fixed in an array on the surface of the second connecting rod (12) located at the top end of the rotating rod (4), and a connecting seat (17) is fixed on the surface of each fixing member (16). The connecting seat (17) is driven by a hydraulic cylinder (5), and the bottom of the hydraulic cylinder (5) is rotatably connected to the first connecting rod (6). The other end of the sliding rod (3) is rotatably connected to a lifting platform (8), and the bottom of the lifting platform (8) is slidably connected to the other end of the rotating rod (4). One end of the lifting platform (8) is rotatably connected to a placement platform (10), and the placement platform (10) is driven by a driving component.

2. A large express delivery loading device for logistics transportation according to claim 1, characterized in that: The driving assembly comprises a worm wheel (13), the worm wheel (13) being fixedly connected to the side of the placement platform (10), and a worm (14) being meshed on the surface of the worm wheel (13), the worm (14) being driven by a worm rotating motor (15), and bearing seats being rotatably connected at both ends of the worm (14), and the bearing seats being fixed on the circumference of the lifting platform (8).

3. A large express delivery loading device for logistics transportation according to claim 1, characterized in that: A support rod (18) is slidably connected to the middle of the lifting platform base (1); the bottom of the support rod (18) is provided as a support seat, and the top of the support rod (18) is provided as a limit plate (1801); a spring (19) is embedded on the surface of the support rod (18), and the spring (19) is provided between the lifting platform base (1) and the limit plate (1801); the limit plate (1801) is driven by a cylinder (20), and the cylinder (20) is fixed to the top of the lifting platform base (1).

4. A large express delivery loading device for logistics transportation according to claim 1, characterized in that: The side wall array of the lifting platform (8) is rotatably connected to a transmission roller, a conveyor belt (9) is meshed on the surface of the transmission roller, and the transmission roller is driven by an external motor.

5. A large express delivery loading device for logistics transportation according to claim 2, characterized in that: The helix lead angle of the worm (14) is smaller than the equivalent friction angle between the meshing teeth of the worm (14) and the worm wheel (13).

6. A large express delivery loading device for logistics transportation according to claim 1, characterized in that: Elastic belt fixing members (11) are fixed in arrays on both sides of the placement platform (10).

7. A large express delivery loading device for logistics transportation according to claim 1, characterized in that: A fixing rod (7) is fixed between the hydraulic cylinders (5).

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