Large cargo transfer device for import and export of goods

Abstract

The application discloses a large cargo transfer device for cargo import and export, and relates to the technical field of cargo transfer. The device comprises a main frame and four auxiliary frames, the four auxiliary frames are arranged around the main frame and are distributed in a rectangular shape, wheels are arranged on the bottom of the main frame and the auxiliary frames, the wheels are rotatably arranged on the main frame and the auxiliary frames, wheels are arranged in the wheels, the wheels are rotatably driven by a motor, the direction of the wheels can be adjusted, the main frame and the auxiliary frames can be synchronously walked, and the auxiliary frames are connected with the main frame through trusses. The angle of the truss between the adjacent two auxiliary frames is controlled, the shape and size of the bearing area formed by the four auxiliary frames are changed, the device can adapt to cargos of different sizes, the main frame and the auxiliary frames can jointly support the cargos, the cargos are driven to walk through the wheels, the transfer is completed, and the convenience and adaptability of the device are improved.

Description

Technical Field

[0001] This invention relates to the field of cargo transfer technology, specifically to a large cargo transfer device for import and export of goods. Background Technology

[0002] Import and export of goods refers to the economic activities of exporting goods from my country to other countries or regions, and importing goods from other countries or regions into my country. The objects of import and export are tangible commodities with value and use value. According to the International Standard Classification of Trade (ISC), these include: primary products (such as food, live animals mainly for consumption, beverages, tobacco, non-edible raw materials, mineral fuels, animal and vegetable oils, etc.) and manufactured goods (such as chemicals and related products, various raw material products, machinery and transport equipment, etc.). There are many ways to import and export goods, the most important of which is the free foreign exchange settlement of foreign trade transactions. This involves both parties signing import or export contracts, settling the transaction in currency, and completing unilateral imports or exports on a transaction-by-transaction basis. Other methods include processing and assembly for re-export, barter trade, and border trade. However, in many large cargo transshipment processes, gantry cranes are often used for transportation. But in ports, many large cargoes need to be sorted, temporarily stored, and finally centrally exported. However, within port cargo transshipment, the capacity of gantry cranes is limited and inflexible, and other transshipment vehicles are smaller and cannot adjust their support capabilities, thus exhibiting certain limitations. Summary of the Invention

[0003] The purpose of this invention is to provide a large cargo transfer device for import and export of goods, so as to overcome the above-mentioned shortcomings of the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a large cargo transfer device for import and export of goods, comprising a main frame and four auxiliary frames, wherein the four auxiliary frames are arranged around the main frame in a rectangular distribution. Wheel frames are installed at the bottom of both the main frame and the auxiliary frames, and the wheel frames are rotatably mounted to the main frame and the auxiliary frames. Wheels are installed inside the wheel frames, and the rotation of the wheel frames is controlled by a motor, while the rotation of the wheels is driven by a motor, thereby making the direction of the wheels adjustable and enabling the main frame and auxiliary frames to move synchronously. The auxiliary frames are connected to the main frame via trusses, and hinge seats are fixedly installed at the four apex corners of the main frame and at the end of the auxiliary frames near the main frame. The two ends of the truss are rotatably mounted inside two sets of hinge seats, i.e., the truss is connected to the main frame via hinge seats. The chassis and subframes are rotatably mounted, and a guide structure is provided between each pair of adjacent subframes. This guide structure guides the movement of adjacent subframes in a fixed direction. The truss changes the position of the subframes relative to the main chassis by swinging, thereby changing the shape and size of the load-bearing area formed by the four subframes. This allows the four subframes to maintain a fixed posture and follow the positional changes of the truss. Through the connection of the truss, after adjusting the position of each subframe, it can accommodate goods of different sizes. Thus, the main chassis and subframes jointly support the goods, which are then moved by wheels to complete the transfer of goods. By adjusting the position of the four subframes, it can accommodate goods of even larger sizes and make appropriate adjustments according to the shape of the goods.

[0005] Preferably, the guide structure is an auxiliary connecting rod, and each pair of adjacent subframes is connected by an auxiliary connecting rod. A guide sleeve is fixedly connected to the outside of the subframe, and the two ends of the auxiliary connecting rod are slidably installed with the guide sleeves on the outside of the two subframes, so that the two adjacent subframes can slide in a fixed direction to ensure that the subframes do not tilt when the position is adjusted.

[0006] Preferably, each subframe and main frame has two trusses, and the two trusses are arranged in parallel to each other, so that the subframe, main frame and the two trusses form a parallelogram structure, so that the posture of the subframe will not change when the position of the subframe is adjusted.

[0007] Preferably, a hydraulic cylinder is installed between two adjacent sets of trusses, with both ends of the hydraulic cylinder rotatably connected to the two sets of trusses respectively. The hydraulic cylinder controls the opening and closing angle of the trusses between the two adjacent subframes, thereby adjusting and controlling the actual position of the subframe.

[0008] Preferably, a support plate is fixedly connected to the top of the truss, and the top walls of the support plate, the main frame and the sub-frame are flush, so that the goods can be placed stably when carrying them and the support range for the goods is increased.

[0009] Preferably, the bottom of the truss is equipped with casters via a bracket, and the bracket is rotatably connected to the truss. This allows the casters and the bracket to provide auxiliary support for the truss, preventing the truss from bending due to excessive span.

[0010] Preferably, each of the four subframes is fixedly connected to a positioning corner block at its top corner. The positioning corner block is a right-angle baffle structure with an upward protrusion, so that when carrying goods, the four positioning corner blocks can be used to limit the four corners of the goods.

[0011] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0012] This invention uses a combination of a main frame and four sub-frames. With the support of trusses, the main frame and sub-frames are stably connected to form a whole. By controlling the opening and closing angle of the trusses between adjacent sub-frames, the position of the sub-frame relative to the main frame is changed, thereby changing the shape and size of the load-bearing area formed by the four sub-frames. This allows it to accommodate goods of different sizes, with the main frame and sub-frames working together to support the goods. The goods are then driven by wheels to complete the transfer, greatly improving the convenience and adaptability of the device. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 For the present invention Figure 1 Enlarged view of the structure of part A.

[0016] Figure 3 This is a top view of the present invention.

[0017] Figure 4 This is a schematic diagram of an adjustment state according to the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Main frame; 2. Subframe; 21. Positioning corner block; 3. Wheel frame; 31. Wheel; 4. Truss; 41. Pallet; 42. Caster wheel; 5. Hinge seat; 6. Guide sleeve; 7. Auxiliary connecting rod; 8. Hydraulic cylinder. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Example

[0022] This invention provides, for example Figure 1-4 The large cargo transfer device for import and export of goods shown includes a main frame 1 and four auxiliary frames 2, which are arranged around the main frame 1 in a rectangular pattern. Wheel frames 3 are mounted on the bottom of both the main frame 1 and the auxiliary frames 2, and are rotatably mounted to them. Wheels 31 are installed inside the wheel frames 3, which are controlled by a motor to rotate. The wheels 31 are driven by the motor to rotate, thus making the direction of the wheels 31 adjustable and enabling the main frame 1 and auxiliary frames 2 to move synchronously. The auxiliary frames 2 are connected to the main frame 1 via trusses 4. Hinge seats 5 are fixedly installed at the four corners of the main frame 1 and at the end of the auxiliary frames 2 closest to the main frame 1. The two ends of the trusses 4 are rotatably mounted inside two sets of hinge seats 5, i.e., the trusses 4 are connected to the main frame via the hinge seats 5. The main frame 1 and the subframe 2 are rotatably mounted. A guide structure is provided between each pair of adjacent subframes 2. The guide structure guides the movement of the two adjacent subframes 2 in a fixed direction. The truss 4 changes the position of the subframes 2 relative to the main frame 1 by swinging, thereby changing the shape and size of the load-bearing area composed of the four subframes 2. This allows the four subframes 2 to maintain a fixed posture and follow the position change of the truss 4. Through the connection of the truss 4, after adjusting the position of each subframe 2, it can accommodate goods of different sizes. Thus, the main frame 1 and the subframes 2 jointly support the goods and move through the wheels 31 to complete the transfer of goods. By adjusting the position of the four subframes 2, it can accommodate goods of more sizes and make appropriate adjustments according to the shape of the goods.

[0023] Furthermore, in the above technical solution, the guide structure is an auxiliary connecting rod 7, and each pair of adjacent subframes 2 are connected by the auxiliary connecting rod 7. The outer side of the subframe 2 is fixedly connected to a guide sleeve 6. The two ends of the auxiliary connecting rod 7 are slidably installed with the guide sleeves 6 on the outside of the two subframes 2, so that the two adjacent subframes 2 can slide in a fixed direction to ensure that the subframe 2 will not tilt when the position is adjusted.

[0024] Furthermore, in the above technical solution, the number of trusses 4 between each subframe 2 and the main frame 1 is set to two, and the two trusses 4 are arranged in parallel to each other, so that the subframe 2, the main frame 1 and the two trusses 4 form a set of parallelogram structures, so that when the subframe 2 is adjusted in position, its posture will not change.

[0025] Furthermore, in the above technical solution, a hydraulic cylinder 8 is installed between two adjacent sets of trusses 4. The two ends of the hydraulic cylinder 8 are rotatably connected to the two sets of trusses 4 respectively. Thus, the opening and closing angle of the trusses 4 between two adjacent subframes 2 can be controlled by the hydraulic cylinder 8, and the actual position of the subframe 2 can be adjusted and controlled.

[0026] Furthermore, in the above technical solution, a support plate 41 is fixedly connected to the top of the truss 4. The top walls of the support plate 41, the main frame 1, and the sub-frame 2 are flush, so that when carrying goods, the goods can be placed stably and the support range for the goods can be increased.

[0027] Furthermore, in the above technical solution, the bottom of the truss 4 is equipped with a caster wheel 42 via a bracket, and the bracket is rotatably connected to the truss 4. Thus, the caster wheel 42 and the bracket can be used to provide auxiliary support for the truss 4, preventing the truss 4 from bending due to excessive span.

[0028] Furthermore, in the above technical solution, each of the four subframes 2 is fixedly connected to a positioning corner block 21. The positioning corner block 21 is a right-angle baffle structure with an upward protrusion. Thus, when carrying goods, the four positioning corner blocks 21 can be used to limit the four corners of the goods.

[0029] Working principle: By setting up a main frame 1 and four sub-frames 2 in combination, and using trusses 4 and hinges 5 to connect each sub-frame 2, the position of each sub-frame 2 can be adjusted. Under the connection and support of trusses 4, the main frame 1 and sub-frames 2 are stably connected to form a whole, which together supports the goods. When facing different goods, the angle of trusses 4 between two adjacent sub-frames 2 is controlled by hydraulic cylinders 8, changing the position of sub-frame 2 relative to the main frame 1, thereby changing the shape and size of the load-bearing area formed by the four sub-frames 2. The four sub-frames 2 maintain a fixed posture and follow the position change of trusses 4. It can adapt to goods of different sizes, so that the main frame 1 and sub-frames 2 together support the goods. The vehicle is driven by wheels 31 to complete the transfer of goods, which greatly improves the convenience and adaptability of the device.

[0030] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A large cargo transfer device for import and export of goods, comprising a main frame (1) and four sub-frames (2), wherein the four sub-frames (2) are arranged around the main frame (1), and wheel frames (3) are installed at the bottom of both the main frame (1) and the sub-frames (2), wherein wheels (31) are arranged inside the wheel frames (3), characterized in that: The subframe (2) is connected to the main frame (1) via a truss (4), and hinge seats (5) are fixedly installed at the four corners of the main frame (1) and at the end of the subframe (2) near the main frame (1). The two ends of the truss (4) are rotatably installed inside the two sets of hinge seats (5). A guide structure is provided between the two adjacent sets of subframes (2), and the guide structure guides the movement of the two adjacent subframes (2) in a fixed direction. The truss (4) changes the position of the subframe (2) relative to the main frame (1) by swinging. The guide structure is an auxiliary connecting rod (7), and each two adjacent subframes (2) are connected by the auxiliary connecting rod (7). The outer side of the subframe (2) is fixedly connected with a guide sleeve (6), and the two ends of the auxiliary connecting rod (7) are slidably installed with the guide sleeves (6) on the outside of the two subframes (2); The number of trusses (4) between each of the subframes (2) and the main frame (1) is set to two, and the two trusses (4) are arranged in parallel to each other.

2. A large cargo transfer device for import and export of goods according to claim 1, characterized in that: A hydraulic cylinder (8) is installed between two adjacent sets of trusses (4), and the two ends of the hydraulic cylinder (8) are rotatably connected to the two sets of trusses (4) respectively.

3. A large cargo transfer device for import and export of goods according to claim 1, characterized in that: The top of the truss (4) is fixedly connected to a support plate (41), and the top walls of the support plate (41), the main frame (1) and the sub-frame (2) are flush.

4. A large cargo transfer device for import and export of goods according to claim 3, characterized in that: The bottom of the truss (4) is equipped with casters (42) by means of a bracket, and the bracket is rotatably connected to the truss (4).

5. A large cargo transfer device for import and export of goods according to claim 1, characterized in that: Each of the four subframes (2) is fixedly connected to a positioning corner block (21), which is a right-angle baffle structure with an upward protrusion.

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