A heading restraint for a cargo bed

Abstract

The application discloses a kind of heading limiting device of cargo platform, including limiting hook, tethering belt and two hooks;Limiting hook and hook are connected at the two sides of cargo platform respectively, two hooks are located at the same side of cargo platform, close to the front end of the heading of goods, the hook end of limiting hook is provided with notch, the two ends of tethering belt are connected with two hooks respectively, the middle part of tethering belt passes through the tethering net from the front end of goods, is hung on limiting hook, the notch of limiting hook faces the rear end of goods.When limiting and releasing of cargo platform are carried out, both the heading of cargo platform can be limited, and the automatic unhooking without manual intervention when releasing can also be ensured, the waiting time of releasing is reduced, and the tethering and releasing efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of aircraft cargo hold airdrop and relates to a heading limiting device for a cargo platform. Background Technology

[0002] Due to the influence of aircraft takeoff, cruise maneuvers, airdrops, and landings, the cargo platform inside the cabin tends to move in its course, thus requiring a course restriction device. Therefore, a course restriction device is needed to limit the course movement of the cargo platform throughout the transportation process and to automatically release the course restriction when the cargo platform is airdropped.

[0003] The heading restraint load of cargo terminals is relatively large. Most existing transport aircraft use tethering chains and quick-release hooks to restrict heading movement, resulting in significant weight and long setup and preparation times. When the cargo terminal reaches the designated position for delivery, manual release of the restraints is required to avoid affecting subsequent deliveries, and the tethering chains must be placed on both sides of the side guide rails. This process is cumbersome and inefficient in securing and delivering cargo. Furthermore, the manual release of the heading restraint chains is time-consuming, leading to long intervals between airdrops from adjacent terminals and low accuracy during continuous airdrops. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a heading restriction device for a cargo platform. When restricting the heading of the cargo platform and deploying cargo, it can not only ensure the heading restriction of the cargo platform, but also automatically unhook the cargo without human intervention during deployment, thereby reducing deployment waiting time and improving mooring and deployment efficiency.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] A heading limiting device for a cargo platform includes a limiting hook, a tethering strap, and two hooks;

[0007] The limiting hook and the hook are connected to both sides of the platform. The two hooks are located on the same side of the platform, close to the front of the cargo's trajectory. The limiting hook has a notch at the end. The two ends of the tethering strap are connected to the two hooks respectively. The middle part of the tethering strap passes through the tethering net at the front of the cargo and is hooked onto the limiting hook. The notch of the limiting hook faces the rear of the cargo.

[0008] Preferably, the platform is equipped with floor tethering rings, and the movement-limiting hooks and hooks are all connected to the floor tethering rings.

[0009] Furthermore, the end of the motion-limiting hook furthest from the hook end is provided with two interfaces, which are spaced apart. Both interfaces are provided with through holes, and the two through holes are connected to the floor mooring ring by quick-release pins.

[0010] Furthermore, the spacing between the two interfaces is 1-2 mm larger than the thickness of the floor tether ring.

[0011] Furthermore, the interface is flat.

[0012] Preferably, the hook end of the motion-limiting hook is located near the middle position as the release guide area, and the release guide area is provided with a ramp that slopes downward toward the hook end.

[0013] Preferably, the connection area of ​​the hook end of the motion-limiting hook with the retaining strap is a plane.

[0014] Furthermore, the upper and lower sides of the connecting area are inclined surfaces with the inner side of the hook end.

[0015] Preferably, the limiting hook has a safety hole on the outside of the hook end, and one end of the safety hole is connected to the tether rope, and the other end of the tether rope is connected to the platform.

[0016] Preferably, a tether is attached to the tether, and the tether is located near one of the hooks.

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

[0018] The present invention involves installing a mooring strap around the cargo platform in the direction of travel. After installing a motion-limiting hook on one side of the cargo platform, on the other side, one end of the mooring strap is connected to one of the hooks, and the other end passes through the mesh of the mooring net on the cargo platform, exits from the bevel of the motion-limiting hook, and then passes through the mesh of the mooring net on the cargo platform in the opposite direction along the same path to connect with another hook, thereby achieving the directional motion limitation of the cargo platform by the mooring strap. When deployed, under the action of gravity, the cargo platform slides out of the cargo hold in the opposite direction of travel, and the mooring net drives the mooring strap to detach from the notch of the motion-limiting hook and be brought to the side of the cargo hold. Attached Figure Description

[0019] Figure 1 This is a front view of the cargo platform equipped with the heading limiting device of the present invention;

[0020] Figure 2 This is a top view of the cargo platform equipped with the heading limiting device of the present invention;

[0021] Figure 3 This is a right view of the cargo platform equipped with the heading limiting device of the present invention;

[0022] Figure 4 For the present invention Figure 3 Enlarged view at point I;

[0023] Figure 5 This is a left view of the cargo platform equipped with the heading limiting device of the present invention;

[0024] Figure 6 For the present invention Figure 5 Enlarged view at point II;

[0025] Figure 7 This is a schematic diagram of the limiting hook structure of the present invention;

[0026] Figure 8 This is a schematic diagram showing the connection between the hook and the tethering strap of the present invention;

[0027] Figure 9 This is a schematic diagram of the connection between the hook and the fastener of the present invention.

[0028] Among them: 1-platform; 2-tethering net; 3-floor tethering ring; 4-tethering rope; 5-movement limiting hook; 6-interface; 7-through hole; 8-release guide area; 9-connection area; 10-safety hole; 11-hook; 12-tethering strap; 13-tightening device. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] like Figures 1-6 As shown, the heading limiting device of the cargo platform 1 of the present invention includes a mooring rope 4, a limiting hook 5, a mooring strap 12, a fastener 13 and two hooks 11.

[0033] like Figure 1 and Figure 2 As shown, a row of floor tethering rings 3 is set on both sides of the loading platform 1, and the goods are located between the two rows of floor tethering rings 3, with tethering nets 2 covering the goods.

[0034] like Figure 3 and Figure 5 As shown, the motion-limiting hook 5 and hook 11 are respectively connected to both sides of the loading platform 1, as follows: Figure 4 As shown, the two hooks 11 are located on the same side of the platform 1, and the limiting hook 5 and the two hooks 11 are close to the front of the cargo's trajectory.

[0035] like Figure 7 As shown, the front end of the motion-limiting hook 5 is the hook end, which has a notch and an open design. The inner side of the hook end is the connection area 9. The middle area on the same side as the hook end of the motion-limiting hook 5 is the release guide area 8. The rear end of the motion-limiting hook 5 is designed with an interface 6 for connecting the floor tethering ring 3. A through hole 7 is machined at the interface 6 for installing a quick-release pin.

[0036] The connection area 9 of the motion-limiting hook 5 is designed as a plane, and the upper and lower sides of the connection area 9 are inclined surfaces with the inner side of the hook end. While the connection area 9 is connected to the tethering strap 12, the inclined surfaces on the upper and lower sides prevent the tethering strap 12 from moving too much, ensuring reliable motion limitation.

[0037] The release guide area 8 of the limited-motion hook 5 is equipped with a ramp with a large slope. The ramp slopes downward toward the hook end and guides the tethering belt 12 when it is released along with the platform 1.

[0038] The rear end of the motion-limiting hook 5 is provided with two interfaces 6. The interfaces 6 are flat and can be inserted into the floor-mounted mooring ring 3 in the cabin. The two interfaces 6 are spaced apart, and the gap between the two interfaces 6 is only 1mm-2mm larger than the thickness of the floor mooring ring 3. Both interfaces 6 are provided with through holes 7. The two through holes 7 are connected to the floor mooring ring 3 by quick-release pins, so that the floor mooring ring 3 is located in the area enclosed by the quick-release pins and the two interfaces 6. The two interfaces 6 are matched with the plane on the floor mooring ring 3 to limit the movement and ensure that the motion-limiting hook 5 will not tip over.

[0039] like Figure 6 As shown, a safety hole 10 is provided on the outer side of the hook end of the limiting hook 5. One end of the safety hole 10 is connected to the tether rope 4, and the other end of the tether rope 4 is connected to the floor tether ring 3, so that the limiting hook 5 is tilted towards the direction of the cargo flight, the notch is horizontal, and the release guide area 8 is parallel to the horizontal plane. The tether rope 4 can prevent the limiting hook 5 from flipping over, and avoid the tether belt 12 from causing the limiting hook 5 to flip over when it is put into the platform 1, which would lead to failure of automatic disengagement.

[0040] A flat tethering band 12 made of polymer material is used for movement restriction, which is lighter than a tethering chain.

[0041] The two ends of the tether strap 12 are connected to two hooks 11 respectively. The middle part of the tether strap 12 passes through the tether net at the front end of the goods and is hung on the movement-limiting hook 5. The notch of the movement-limiting hook 5 faces the rear end of the goods.

[0042] A fastener 13 is attached to the tether 12, and the fastener 13 is located near one of the hooks.

[0043] When movement is restricted, a movement restriction hook 5 is installed on one side of the loading platform 1. The floor tethering ring 3 is inserted into the interface 6 of the movement restriction hook 5, and then the movement restriction hook 5 and the floor tethering ring 3 are connected by a quick-release pin. Figure 9 As shown, the tethering device 13 is connected to one of the hooks 11 via a tethering strap and then to the floor tethering ring 3. One end of the tethering strap 12 is connected to the tethering device 13, passes through the tethering net on the platform 1, is folded in half, and then hung on the limiting hook 5. It then passes back along the same path. Figure 8 As shown, the other end is connected to the floor tethering ring 3 via another hook 11. Finally, the tethering strap 12 is tensioned via the tensioner 13.

[0044] After the movement is restricted, one end of the mooring rope 4 is attached to the safety hole 10, and the other end is attached to the floor mooring ring 3 adjacent to the heading direction.

[0045] During deployment, due to gravity, cargo platform 1 slides out and is deployed in the opposite direction. The mooring net of cargo platform 1 causes the mooring belt 12 to detach from the release guide area 8 of the motion-limiting hook 5 and be carried to the side of the cargo hold by the mooring net.

[0046] The tension and installation angle are roughly adjusted by the length of the tie strap 12, and then adjusted to the appropriate tension and installation angle by the fastener 13. The operation is convenient and highly precise. By adjusting the length of the tie strap 12, the movement of single-row platform 1, double-row platform 1, and combined platform 1 can be flexibly restricted, which is highly adaptable and has a wide range of applications.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this patent should not be determined by reference to the above description, but rather by reference to the foregoing claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the applicant has not considered that subject matter as part of the disclosed inventive subject matter.

Claims

1. A heading limiting device for a cargo platform, characterized in that, Includes a motion-limiting hook (5), a tether (12), and two hooks (11); The motion-limiting hook (5) and hook (11) are connected to the two sides of the platform (1) respectively. The two hooks (11) are located on the same side of the platform (1), close to the front end of the cargo's direction. The end of the motion-limiting hook (5) has a notch. The two ends of the tethering strap (12) are connected to the two hooks (11) respectively. The middle part of the tethering strap (12) passes through the tethering net at the front end of the cargo and is hung on the motion-limiting hook (5). The notch of the motion-limiting hook (5) faces the rear end of the cargo. The hook end of the motion-limiting hook (5) is located near the middle position as the release guide area (8). The release guide area (8) is provided with a ramp that slopes downward toward the hook end. The connection area (9) of the hook end of the motion-limiting hook (5) with the fastening strap (12) is a plane; Floor tie-down rings (3) are provided on the platform (1), and the movement-limiting hooks (5) and hooks (11) are connected to the floor tie-down rings (3); The motion-limiting hook (5) has two interfaces (6) on the end away from the hook end. The two interfaces (6) are spaced apart. Both interfaces (6) have through holes (7). The two through holes (7) are connected to the floor tie ring (3) by quick-release pins. The spacing between the two interfaces (6) is 1-2 mm larger than the thickness of the floor tethering ring (3); Interface (6) is flat; The upper and lower sides of the connecting area (9) are inclined surfaces with the inner side of the hook end; The limited-movement hook (5) has a safety hole (10) on the outside of the hook end. The safety hole (10) is connected to one end of the tether rope (4), and the other end of the tether rope (4) is connected to the platform (1). A tether (13) is attached to the tether (12), and the tether (13) is located near one of the hooks; The tether (13) is connected to one of the hooks (11) via a tether strap and then to the floor tether ring (3). One end of the tether strap (12) is connected to the tether (13), passes through the tether net on the platform (1), is folded in half, and is hung on the motion-limiting hook (5). It then passes back along the same path, and the other end is connected to the floor tether ring (3) via another hook (11). The tether strap (12) is tensioned by the tether (13). After the movement is restricted, one end of the mooring rope (4) is put on the safety hole (10), and the other end is put on the floor mooring ring (3) adjacent to the heading direction; During deployment, the platform (1) slides out in the opposite direction due to gravity. The mooring net of the platform (1) drives the mooring belt (12) to detach from the release guide area (8) of the motion-limiting hook (5) and is carried by the mooring net to the side of the cargo hold.

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