An in-cabin cargo fixing device and fixing method for a freight drone

Abstract

The present invention discloses an in-cabin cargo fixing device and a fixing method for a freight drone, which includes a chassis (1) connected to the bottom of the cargo hold. Fixing wire meshes (2) are connected around the chassis (1) through mounting feet. A number of parallel steel wires (3) are distributed at intervals on the fixing wire meshes (2). Clamping assemblies are arranged on the steel wires (3); the clamping assemblies include sleeves (4). The sleeve (4) is formed by rotatably connecting two split cylinders. A first mounting hole (401) passing through the steel wire (3) and / or the fixing wire mesh (2) is provided in the middle of the sleeve (4). A wire rope clip (5) is provided outside the first mounting hole (401). A clamping plate (6) is provided at one end of the sleeve (4). An L-shaped clamping opening is formed between the sleeve (4) and the clamping plate (6). The present invention has the characteristics of good fixing stability and high working efficiency.

Description

Technical Field

[0001] The present invention relates to an unmanned aerial vehicle (UAV), and in particular to a cargo fixing device and method for a cargo unmanned aerial vehicle (UAV) in a cabin. Background Art

[0002] Because cargo drones can vibrate during transport and tilt upward or downward during takeoff and landing, current drone cargo holds require a specialized securing mechanism to secure cargo. This securing mechanism consists of a base frame and a securing net. During use, a container loaded with cargo is placed flat on the base frame, then secured to the base frame with the securing net. Finally, the base frame is secured to the cargo hold floor. However, using the securing net to secure containers often results in the container sliding laterally or vertically within the net, reducing the stability of the securement. Furthermore, sliding containers can collide with the net, causing the net to loosen or break. Furthermore, during disassembly and storage, the net is often unrolled and then reeled in. This can lead to tangling of the reeled nets. This further complicates the process of unrolling the nets, requiring operators to carefully smooth out any tangles and knots and identify hooks or cords at the edges, further reducing their efficiency. Therefore, the existing method of fixing the drone cargo hold to the container has the problems of poor fixing stability and low working efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a cargo securing device and method for a cargo drone cabin, which has the characteristics of good securing stability and high working efficiency.

[0004] The technical solution of the present invention is as follows: A cargo fixing device for a cargo drone, comprising a base frame connected to the bottom of the cargo hold, a fixed rope net connected to the four sides of the base frame via mounting feet, a plurality of side-by-side steel ropes spaced apart on the fixed rope net, and a clamping assembly provided on the steel rope; the clamping assembly comprises a sleeve, the sleeve is formed by two sub-cylinders rotatably connected, a first mounting hole is provided in the middle of the sleeve for passing the steel rope and / or the fixed rope net, a wire rope clamp is provided on the outside of the first mounting hole, a splint is provided at one end of the sleeve, and an L-shaped snap-fit opening is formed between the sleeve and the splint.

[0005] In the aforementioned cargo fixing device for a cargo drone, the outer shape of the sub-cylinder body is a rectangular shell, and a plurality of horizontal plates are arranged side by side in the middle of the sub-cylinder body; a first mounting hole is formed between the horizontal plates of the two sub-cylinder bodies, and one of the sub-cylinder bodies is provided with an opening that cooperates with the wire rope clamp, and the opening is located on the sub-cylinder body between adjacent horizontal plates, and the other sub-cylinder body is provided with a circular hole that cooperates with the wire rope clamp.

[0006] In the above-mentioned in-cabin cargo fixing device for a cargo drone, the two sub-cylinders are rotatably connected on one side and are in mutual contact on the other side.

[0007] In the above-mentioned in-cabin cargo fixing device for a cargo drone, a strip-shaped edge is provided around the steel wire rope. An installation channel is provided inside the strip-shaped edge. A plurality of wire holes are provided on the strip-shaped edge outside the installation channel. A tensioning rope is provided inside the installation channel. Both ends of the tensioning rope extend to the outside of both ends of the installation channel and are connected to installation feet. The middle part of the tensioning rope passes through the wire holes and is connected to the installation feet.

[0008] In the above-mentioned in-cabin cargo fixing device for a cargo drone, the installation feet include a first installation foot located in the middle of the side of the chassis and a second installation foot located at both ends of the side of the chassis. The cross-sectional shapes of the first installation foot and the second installation foot are both T-shaped. A buckle for connecting the tensioning rope is provided at the end of the second installation foot.

[0009] In the above-mentioned in-cabin cargo fixing device for a cargo drone, both ends of the steel wire rope extend into the installation channel and are connected to the tensioning rope.

[0010] In the above-mentioned in-cabin cargo fixing device for a cargo drone, a fixed rope grid is further included. The fixed rope grid includes a bracket, and a plurality of placing tubes are distributed on the bracket. The upper ends of the placing tubes are connected to the bracket through connecting pieces.

[0011] In the above-mentioned in-cabin cargo fixing device for a cargo drone, the clamping plate is provided with a second installation hole for cooperating with the placing tube, and a vertical groove communicating with the outside is provided on one side of the second installation hole.

[0012] Based on the above-mentioned fixing method of the in-cabin cargo fixing device for a cargo drone, it includes the following steps:

[0013] ① Place the cargo on the chassis and fix the chassis and the bottom of the cargo hold to each other.

[0014] ② Take out the fixed rope grid from the fixed rope grid frame and cover the surface of the cargo.

[0015] ③ After opening the sleeve of the clamping assembly, sleeve it outside the fixed rope grid and the steel wire rope. Then, connect the sleeve, the fixed rope grid and the steel wire rope to each other through a steel wire rope clip. At the same time, the clamping port of the clamping assembly is in mutual contact with the cargo at the end corners.

[0016] ④ After the fixed rope grid is closely attached to the surface of the cargo and straightened, the middle part of the tensioning rope is sleeved on the first installation foot in the middle of the side of the chassis in a U shape, and the tensioning rope is wound around the second installation foot at the end of the side of the chassis and then buckled on the buckle.

[0017] Compared with the prior art, the present invention has the following characteristics:

[0018] (1) By providing steel wire ropes on the fixed wire mesh, the present invention can effectively improve the stress intensity of the fixed wire mesh. Moreover, compared with the fixed wire mesh made of nylon or polyester materials, the steel wire ropes have higher bending resistance, thus avoiding the entanglement and knotting of the fixed wire mesh during winding, which is convenient for the operators to organize. Through the clamping assembly on the steel wire ropes, the container can be limited at the end corners, so as to cooperate with the steel wire ropes to fix the container in the transverse and longitudinal directions, effectively preventing the container from sliding within the fixed wire mesh and improving the fixing stability of the container.

[0019] (2) Through the structural optimization of the clamping assembly, it is convenient for the operators to install and position the clamping assembly, and improve the connection stability of the clamping assembly after installation, thereby further enhancing the fixing stability of the clamping assembly to the container.

[0020] (3) Through the optimization of the connection structure between the fixed wire mesh and the chassis bracket, on the one hand, the fixed wire mesh can be applicable to containers with different sizes and shapes, improving the versatility of the present invention. On the other hand, it can also enhance the connection strength between the fixed wire mesh and the chassis, ensure that the fixed wire mesh is fully tightened after installation, and further guarantee the limiting effect of the clamping assembly on the container. At the same time, after the steel wire ropes and the tension ropes are connected, their overall stress intensity can also be improved, that is, when the clamping assembly is stressed, it can directly act on the chassis through the tension ropes, avoiding the expansion or fracture of the mesh holes of the fixed wire mesh caused by excessive local stress, and further improving the fixing stability of the present invention.

[0021] (4) The present invention further provides a fixed wire mesh rack for the structure of the fixed wire mesh. Through the fixed wire mesh rack, the fixed wire mesh can be folded and suspended on each placement pipe only through the clamping assembly when being collected, thus fundamentally eliminating the problem of mutual entanglement and knotting of the fixed wire mesh during winding. When taking it out, only one end of the fixed wire mesh needs to be drawn out in the same way, so that the fixed wire mesh can be fully opened when being drawn out, which is convenient for the operators to install and lay.

[0022] Therefore, the present invention has the characteristics of good fixing stability and high working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the structural schematic diagram of the present invention;

[0024] Figure 2 is the structural schematic diagram of the clamping assembly;

[0025] Figure 3 is the connection structure diagram of the steel wire rope and the tension rope;

[0026] Figure 4 is the connection structure diagram of the tension rope and the first mounting foot;

[0027] Figure 5 It is a connection structure diagram of the tensioning rope and the second mounting foot;

[0028] Figure 6 It is an installation structure diagram of fixing the rope net on the rope net fixing frame.

[0029] Reference numerals: 1 - chassis, 2 - fixed rope net, 3 - steel wire rope, 4 - sleeve, 5 - steel wire rope clip, 6 - clamping plate, 7 - strip-shaped edge, 8 - tensioning rope, 9 - first mounting foot, 10 - second mounting foot, 11 - buckle, 12 - bracket, 13 - placement pipe, 14 - connecting piece, 401 - first mounting hole, 402 - opening, 601 - second mounting hole, 602 - vertical groove.

[0030] The present invention will be further described below in conjunction with the drawings and specific embodiments, but it is not used as a basis for limiting the present invention. Specific embodiments

[0031] Embodiment of the present invention: An in-cabin cargo fixing device for a freight drone, which is composed as Figure 1 shown, including a chassis 1 connected to the bottom of the cargo hold. The fixed rope net 2 is connected around the chassis 1 through mounting feet. A number of parallel steel wire ropes 3 are distributed at intervals on the fixed rope net 2. The steel wire ropes 3 and the fixed rope net 2 are connected to each other through metal fasteners. A clamping assembly is provided on the steel wire ropes 3; the clamping assembly includes a sleeve 4, the sleeve 4 is formed by rotatably connecting two sub-cylinders. A first mounting hole 401 passing through the steel wire rope 3 and / or the fixed rope net 2 is provided in the middle of the sleeve 4. A steel wire rope clip 5 is provided outside the first mounting hole 401. A clamping plate 6 is provided at one end of the sleeve 4. An L-shaped clamping opening is formed between the sleeve 4 and the clamping plate 6.

[0032] The outer shape of the sub-cylinder is a rectangular shell, and a plurality of transverse plates are arranged side by side in the middle of the sub-cylinder; the first mounting hole 401 is formed between the transverse plates of the two sub-cylinders. An opening 402 cooperating with the steel wire rope clip 5 is provided on one of the sub-cylinders, the opening 402 is located on the sub-cylinder between adjacent transverse plates, and a round hole cooperating with the steel wire rope clip 5 is provided on the other sub-cylinder.

[0033] The two sub-cylinders are rotatably connected on one side and are in contact with each other on the other side.

[0034] A strip-shaped edge 7 is provided around the steel wire rope 3. An installation channel is provided inside the strip-shaped edge 7. A plurality of wire holes 701 are provided on the strip-shaped edge 7 outside the installation channel. A tensioning rope 8 is provided in the installation channel. The two ends of the tensioning rope 8 extend to the outside of both ends of the installation channel and are connected to the mounting feet. The middle of the tensioning rope 8 passes through the wire holes 701 and is connected to the mounting feet.

[0035] The mounting feet include a first mounting foot 9 located in the middle of the side of the chassis 1 and second mounting feet 10 located at both ends of the side of the chassis 1. The cross-sectional shapes of the first mounting foot 9 and the second mounting feet 10 are both T-shaped. A buckle 11 for connecting the tensioning rope 8 is provided at the end of the second mounting foot 10.

[0036] Both ends of the steel wire rope 3 extend into the installation channel and are connected to the tensioning rope 8.

[0037] It further includes a fixed rope grid. The fixed rope grid includes a bracket 12. A plurality of placement tubes 13 are distributed on the bracket 12. The upper end of the placement tube 13 is connected to the bracket 12 through a connecting piece 14. The placement tube 13 can be provided with one or more layers as required.

[0038] The clamping plate 6 is provided with a second mounting hole 601 for cooperating with the placement tube 13. A vertical groove 602 communicating with the outside is provided on one side of the second mounting hole 601.

[0039] Based on the fixing method of the in-cabin cargo fixing device for a freight drone, it includes the following steps:

[0040] ① Place the goods on the chassis and fix the chassis and the bottom of the cargo hold to each other.

[0041] ② Take out the fixed rope net from the fixed rope grid and cover the surface of the goods.

[0042] ③ After opening the sleeve of the clamping assembly and sleeving it outside the fixed rope net and the steel wire rope, connect the sleeve, the fixed rope net and the outside of the steel wire rope to each other through a steel wire rope clip. At the same time, the clamping port of the clamping assembly fits with the goods at the end corners.

[0043] ④ After the fixed rope net is closely attached to the surface of the goods and straightened, the middle of the tensioning rope is sleeved on the first mounting foot in the middle of the side of the chassis in a U shape. The tensioning rope is wound around the second mounting foot at the end of the side of the chassis and then buckled on the buckle.

[0044] The working principle of the present invention: When the present invention is in use, first take out the fixed rope net 2 from the fixed rope grid and cover it outside the container. Then, the clamping assembly is sleeved on the fixed rope net 2 and the steel wire rope 3 through the first mounting hole 401 and then moved to the top end corners of the container, and the clamping port of the clamping assembly is completely fitted with the end corners of the container. After the clamping assembly is in place, use the steel wire rope clip 5 to pass through the opening 402 and the round hole to connect the two split cylinders to each other and fix them on the steel wire rope 3. Then, the middle of the tensioning rope 8 around the fixed rope net 2 is sleeved on the first mounting foot 9. The end of the tensioning rope 8 is wound around the second mounting foot 10 for multiple turns and then connected and locked through the buckle 11. During the winding process, the tensioning rope 8 can straighten and tighten the whole fixed rope net 2 and the steel wire rope 3, so as to realize the overall limit of the container and prevent the clamping assembly from shifting in the fixed position.

[0045] After the fixing rope net 2 and the steel wire rope 3 are fixed, the operator finely adjusts the position of the clamping assembly to make it fully fit the container, and then tightens the wire rope clip 5 to completely fix the steel wire rope 3 by the clamping assembly. Avoid the offset of the clamping assembly after locking. Through the cooperation of the steel wire rope 3, the tensioning rope 8 and the clamping assembly, the container can be limited at the end corners in the transverse and longitudinal directions, thereby avoiding the offset and impact of the fixing rope net 2 caused by the inclination of the cargo hold and improving the fixing stability of the container.

[0046] When the operator unbinds, only need to loosen the end of the tensioning rope 8 and pull the fixing rope net 2 from one side, and then each clamping assembly is sleeved on the placing pipe 13 through the second mounting hole 601 in turn, so that the fixing rope net 2 can be hung and stacked on the fixing rope net rack, further avoiding the mutual entanglement and knotting of the fixing rope net 2 during winding, and improving the loading and unloading efficiency of the fixing rope net 2.

Claims

1. An in-cabin cargo fixing device for a freight drone, characterized in that: The invention comprises a base frame (1) connected to the bottom of the cargo hold, wherein the base frame (1) is connected to a fixed rope net (2) via mounting feet on all sides, wherein a plurality of steel wire ropes (3) are spaced and arranged side by side on the fixed rope net (2), and a clamping assembly is provided on the steel wire rope (3); the clamping assembly comprises a sleeve (4), wherein the sleeve (4) is formed by rotating and connecting two sub-cylinder bodies, wherein a first mounting hole (401) for passing the steel wire rope (3) and / or the fixed rope net (2) is provided in the middle of the sleeve (4), a steel wire rope clamp (5) is provided on the outside of the first mounting hole (401), and a clamping plate (6) is provided at one end of the sleeve (4), and an L-shaped clamping opening is formed between the sleeve (4) and the clamping plate (6); The outer shape of the sub-cylinder body is a rectangular shell, and a plurality of horizontal plates are arranged side by side in the middle of the sub-cylinder body; a first mounting hole (401) is formed between the horizontal plates of the two sub-cylinder bodies, one of the sub-cylinder bodies is provided with an opening (402) that cooperates with the wire rope clamp (5), and the opening (402) is located on the sub-cylinder body between adjacent horizontal plates, and the other sub-cylinder body is provided with a circular hole that cooperates with the wire rope clamp (5); The two sub-cylinder bodies are connected by rotation on one side, and the two sub-cylinder bodies fit together on the other side; The steel wire rope (3) is provided with a strip lap edge (7) around it, an installation channel is provided on the inner side of the strip lap edge (7), a plurality of wire holes (701) are provided on the strip lap edge (7) outside the installation channel, a tensioning rope (8) is provided in the installation channel, two ends of the tensioning rope (8) extend to the outer sides of the two ends of the installation channel and are connected to the installation feet, and the middle part of the tensioning rope (8) passes through the wire hole (701) and is connected to the installation foot; The mounting feet comprise a first mounting foot (9) located in the middle of the side of the base frame (1) and a second mounting foot (10) located at both ends of the side of the base frame (1); the cross-sectional shapes of the first mounting foot (9) and the second mounting foot (10) are both T-shaped, and a buckle (11) for connecting a tensioning rope (8) is provided at the end of the second mounting foot (10); Both ends of the steel wire rope (3) extend into the installation channel and are connected to the tensioning rope (8); It also includes a fixed rope net frame, which includes a bracket (12), a plurality of placement tubes (13) distributed on the bracket (12), and the upper ends of the placement tubes (13) are connected to the bracket (12) via connecting pieces (14); The clamping plate (6) is provided with a second mounting hole (601) that matches the placement tube (13), and a vertical groove (602) that communicates with the outside is provided on one side of the second mounting hole (601); The invention also includes a method for fixing a cargo fixing device in a cargo cabin of a cargo drone, the fixing method comprising the following steps: ① Place the cargo on the chassis and secure the chassis and cargo hold bottom to each other; ② Remove the fixed rope net from the fixed rope net frame and cover the surface of the cargo; ③Open the sleeve of the clamping assembly and put it on the outside of the fixed rope net and the wire rope. Then use the wire rope clamp to connect the sleeve, fixed rope net and wire rope. At the same time, the clamping opening of the clamping assembly and the cargo are in contact with each other at the end corners. ④ After the fixed rope net is pressed against the surface of the cargo and straightened, the middle part of the tensioning rope is U-shaped and placed on the first mounting foot in the middle of the side of the chassis. The tensioning rope is wrapped around the second mounting foot at the end of the side of the chassis and then fastened to the buckle.

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