Cargo loading and egress device for an aircraft

Abstract

The application discloses a device for loading and unloading goods for an aircraft, which comprises a hanger, a loading port for loading goods is formed on the hanger, a unloading assembly is movably arranged on the hanger at a position corresponding to the loading port, and the unloading assembly assists the hanger in unloading the goods through the action of the unloading assembly. The device does not act before the goods fall to the ground, and acts after the goods fall to the ground and the rope is loosened, thereby assisting the hanger in unloading the goods.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of small aircraft, in particular to a goods loading and unloading device for an aircraft. BACKGROUND

[0002] At present, small aircraft (commonly known as unmanned aerial vehicles) are more and more widely used in daily life, such as entertainment, supervision, transportation and other fields, and the figure of small aircraft can be seen. Small aircraft is favored in various fields due to its small footprint, energy saving and environmental protection, easy operation and other advantages.

[0003] The delivery method of small aircraft is generally to drive the winding shaft to rotate by using a motor, and the goods are hung on the winding shaft by winding, after the aircraft reaches the delivery destination, the winding shaft is driven to rotate by the motor to control the goods to descend, and after unloading or reloading, the winding shaft is driven to rotate in the opposite direction by the motor to control the goods to ascend.

[0004] However, in order to prevent the goods from falling in the air, the current method is to directly tie the goods to the lower end of the winding, and when the goods are collected, the collector or special personnel needs to untie the tie and take down the goods. However, during the process, the aircraft must stay long enough to ensure that the collector has enough time to take the goods off the winding, and when the collector is not at the collection site, the goods will not be taken down in time, resulting in incomplete or delayed delivery, affecting the subsequent delivery of the unmanned aerial vehicle, wasting unnecessary waiting time, in addition, the traditional method also limits the time freedom of the collector to a certain extent, and the collector must complete the collection at the designated time and place, increasing the investment of manpower and material resources.

[0005] The invention patent with the Chinese patent application number 202011450524.2 discloses a parcel release system for aircraft delivery parcel and a method for delivering a parcel, which comprises: a hanger for placing a parcel; a hanging rope for connecting with an aircraft, the hanging rope is combined with the hanger, and the hanging rope forms a loop; when the hanging rope is in a tension state, the loop locks the hanger and the parcel; when the hanging rope is in a relaxed state, the loop unlocks the hanger and the parcel. The invention adopts a special structure of the hanger combined with a special winding method of the hanging rope. During the flight of the aircraft, the gravity of the parcel is applied to the hanging rope, so that the loop on the hanging rope is also tensioned, locking the hanger and the parcel, preventing the parcel from falling in the air, and ensuring the safety of the parcel delivery process in the air. When the parcel reaches the destination and lands, the gravity of the parcel on the hanging rope is removed, so that the hanging rope is in a relaxed state, the loop unlocks the hanger and the parcel, and the parcel is automatically released without the participation of personnel, greatly improving the delivery efficiency. However, it is found in use that the system is only suitable for parcels with small weight and volume, and has requirements for the design of the parcel handle, which facilitates the sliding of the hanger. However, for heavy and large cargo, the influence of the cargo on the hanger after landing is not obvious, and the hanger cannot be shaken off or broken free from the hanging rope.

[0006] Therefore, it is urgent to improve the existing parcel release system for aircraft delivery parcel to expand its application range and ensure that the hanger can smoothly exit after the cargo lands. SUMMARY

[0007] In view of the above-mentioned deficiencies in the prior art, the present application provides a cargo loading and exit device for an aircraft, which can assist the hanger to smoothly exit after the cargo lands.

[0008] The technical scheme adopted by the present application is as follows:

[0009] A cargo loading and exit device for an aircraft, comprising a hanger, a loading port for loading cargo is formed on the hanger, an exit assembly is movably arranged on the hanger corresponding to the position of the loading port, and the hanger is assisted to exit the loading port from the cargo through the action of the exit assembly.

[0010] Optionally, the exit assembly comprises an elastic connecting support and a push rod, the support is fixed on the hanger, and the push rod is elastically inserted into the loading port in the direction opposite to the exit of the cargo under the action of the elastic force.

[0011] Optionally, the elastic force of the push rod is smaller than the gravity of the cargo but larger than the gravity of the device itself.

[0012] Optionally, the first end of the push rod is rotationally connected to the support, and a torsional spring is arranged at the rotationally connected position, and the torsional force of the torsional spring provides the elastic force.

[0013] Optionally, the hanger comprises a hanger plate and a hanger rod, the lower end of the hanger rod being fixedly or rotatably connected to the upper surface of the hanger plate.

[0014] Optionally, the support is fixed to the upper surface of the hanger plate and internally provided with a rotating shaft perpendicular to the upper surface of the hanger plate, the push rod rotating around the rotating shaft.

[0015] Optionally, the push rod is formed with a limiting groove on the side facing the loading port for accommodating the handle of the goods.

[0016] Optionally, the push rod comprises side plates, a top plate and a bottom plate, the top plate and the bottom plate being oppositely arranged on both sides of the side plates, the bottom plate being attached to the upper surface of the hanger plate and located at the position of the hanger rod away from the support.

[0017] Optionally, the hanger further comprises a hanging rope provided with a rope sleeve, the hanger plate being provided with a tongue portion for sleeving the rope sleeve at the position corresponding to the loading port, and the hanger rod being provided with a hole for passing the hanging rope.

[0018] Optionally, a counterweight is detachably connected to the side of the hanger away from the loading port.

[0019] The above technical scheme makes the present application have the following beneficial effects: the exit assembly does not act before the goods fall to the ground; and the exit assembly acts after the goods fall to the ground and the hanging rope is loosened, thereby assisting the hanger to exit the goods. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0021] Figures 1-4 The structure schematic diagram of the goods loading and exiting device for aircraft provided by the embodiment 1 of the present application when the exit assembly does not act is shown in the following figure, wherein, Figure 1 is a perspective view, Figure 2 is a top view, Figure 3 is a bottom view, Figure 4 is a side view.

[0022] Figures 5-8 The structure schematic diagram of the goods loading and exiting device for aircraft provided by the embodiment 1 of the present application when the exit assembly acts is shown in the following figure, wherein, Figure 5 is a perspective view, Figure 6 is a top view, Figure 7 is a bottom view, Figure 8 is a side view.

[0023] Figures 9-11 Fig. 1 is a schematic diagram of the loading and exiting device for aircraft cargo according to the embodiment 1 of the present application in use before the cargo is landed, wherein, Figure 9 is a perspective view, Figure 10 is a top view, Figure 11 is a side view.

[0024] Figures 12-14 Fig. 2 is a schematic diagram of the loading and exiting device for aircraft cargo according to the embodiment 1 of the present application in use after the cargo is landed.

[0025] Figures 15-17 Fig. 3 is a schematic diagram of the loading and exiting device for aircraft cargo according to the embodiment 1 of the present application in use after the cargo is landed.

[0026] Figures 18-19 Fig. 4 is a schematic diagram of the loading and exiting device for aircraft cargo according to the embodiment 2 of the present application in use before the cargo is landed, wherein, Figure 18 is a perspective view, Figure 19 is a side view.

[0027] Figures 20-21 Fig. 5 is a schematic diagram of the loading and exiting device for aircraft cargo according to the embodiment 2 of the present application in use after the cargo is landed, wherein, Figure 20 is a perspective view, Figure 21 is a side view.

[0028] Figures 22-23 Fig. 6 is a schematic diagram of the loading and exiting device for aircraft cargo according to the embodiment 2 of the present application in use before the cargo is landed, wherein, Figure 22 is a perspective view, Figure 23 is a side view.

[0029] Figures 24-25 Fig. 7 is a schematic diagram of the loading and exiting device for aircraft cargo according to the embodiment 2 of the present application in use after the cargo is landed, wherein, Figure 24 is a perspective view, Figure 25 is a side view.

[0030] The corresponding relationship of the marks in the drawings is as follows:

[0031] 1-hanger; 11-hanging plate; 111-sliding groove; 112-tongue part; 113-second support; 12-hanging rod; 121-hole; 122-second rotating shaft; 2-hanging rope; 21-rope sleeve; 3-exiting assembly; 31-first support; 32-push rod; 321-bottom plate; 322-limiting groove; 33-first rotating shaft; 34-limiting block; 4-cargo; 41-adhesive tape; 51-counterweight block. DETAILED DESCRIPTION

[0032] The specific embodiments of the present application will be further described below with reference to the drawings. It should be noted that the description of these embodiments is intended to help understand the present application, but does not constitute a limitation of the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0033] Embodiment 1:

[0034] Referring to Figures 1-8 The embodiment of the present application provides a cargo loading and exiting device for an aircraft, which mainly comprises a rack 1, a loading port for loading a cargo handle is formed on the rack 1, and an exiting assembly 3 is movably arranged on the rack 1 corresponding to the position of the loading port, and the exiting assembly 3 assists the rack 1 to exit the cargo through the action of the exiting assembly 3.

[0035] Specifically, the exiting assembly 3 of the present embodiment comprises a first support 31 and a push rod 32 connected elastically, the first support 31 is fixed on the rack 1, and the push rod 32 is elastically inserted into the loading port in the direction opposite to the exiting cargo handle under the action of the elastic force, and hits the cargo handle in the loading port, when the weight of the cargo is large, the push rod 31 is subjected to the reaction force of the cargo, and the whole device is reversely ejected from the cargo, thereby completing the automatic disengagement of the rack 1 and the cargo handle. Preferably, two sets of exiting assemblies 3 are symmetrically arranged on the rack 1 corresponding to the positions of the two sides of the loading port.

[0036] Among them, the elastic force of the push rod 32 should meet that the push rod 32 does not act before the cargo falls to the ground, and the push rod acts after the cargo falls to the ground, and is sufficient to push the whole device away from the cargo handle, therefore, the elastic force of the push rod 32 in the present embodiment is designed to be less than the weight of the cargo but greater than the weight of the device itself. The first end of the push rod 32 is rotationally connected to the first support 31, and a torsional spring (or other equivalent functional components) is arranged at the rotationally connected position, and the elastic force of the push rod 32 is provided by the torsional force of the torsional spring. The force of the torsional spring is designed to be less than the weight of the cargo, so it will not exit before the cargo falls to the ground, and after the cargo falls to the ground, the force of the torsional spring is sufficient to exit the device from the cargo. In addition to using the torsional spring, a plurality of springs can also be connected between the push rod and the first support, and the push rod can translate forward and backward relative to the first support under the action of the springs, which can also apply an elastic force to the cargo handle after the cargo falls to the ground, thereby assisting the device to exit from the cargo handle.

[0037] In addition to the above-mentioned form of the first support and the push rod connected elastically, the exiting assembly can also adopt a rubber band, one end of the rubber band is connected with the rack, and the other end of the rubber band is sleeved on the cargo away from the handle side, before the cargo falls to the ground, the rubber band does not act due to the large weight of the cargo, and is tight between the rack and the cargo, when the cargo falls to the ground, the rubber band acts to pull the rack away from the cargo handle, and at the same time, the rubber band is separated from the cargo, and the rack is separated from the cargo together. Among them, the rubber band can be replaced by other similar functional components.

[0038] Further, the hanger 1 comprises a hanger plate 11 and a hanger rod 12, the lower end of the hanger rod 12 is fixedly or rotatably connected to the upper surface of the hanger plate 11. The first support 31 is fixed to the upper surface of the hanger plate 11 and internally provided with a first rotation shaft 33 perpendicular to the upper surface of the hanger plate 11, and the push rod 32 rotates around the first rotation shaft 33.

[0039] In the embodiment, the lower end of the hanger rod 12 is rotatably connected to the upper surface of the hanger plate 11, the hanger plate 11 is a rectangular planar plate, a second support 113 is fixed to the hanger plate 11 at the middle position of a long side of the hanger plate 11, the second support 113 is a hinged seat, and a second rotation shaft 122 parallel to the long side is arranged on the hinged seat, the lower end of the hanger rod 12 is provided with a hole passing through the second rotation shaft 122, the hanger rod 12 can rotate around the second rotation shaft 122, and a variable-size loading port is formed between one side of the hanger rod 12 and the upper surface of the hanger plate 11. A tongue part 112 is vertically outwardly extended at the middle position of the other long side of the hanger plate 11, which is opposite to the second support 113.

[0040] Referring to Figures 9 to 17 As shown, the hanger 1 needs to be used together with the hanging rope 2 in use, the upper end of the hanging rope 2 is connected to the take-up device (such as a winding drum) of the aircraft (such as a drone), the lower end of the hanging rope 2 is tied into a loop-shaped rope sleeve 21, the rope sleeve 21 can be sleeved on the tongue part 112 of the hanger plate 11, the hanger rod 12 is provided with a channel 121 for the hanging rope 2 to pass through, the entrance of the channel 121 is located at the center position of the upper end surface of the hanger rod 12 away from the second support 113, the exit of the channel 121 is located at the back side of the rod body of the hanger rod 12 away from the tongue part 112, close to the lower end, the rod body of the hanger rod 12 is internally defined to form the channel 121 passing through the entrance and the exit, for the hanging rope 2 to pass through. The rope sleeve 21 at the lower end of the hanging rope 2 passes out of the exit of the channel 121, surrounds the rod body and has a larger circumference than the rod body, so as to be able to be sleeved on the tongue part 112 of the hanger plate 11 in the state of hanging the goods 4 as shown. Figures 9-11 As shown, the hanger 1 needs to be used together with the hanging rope 2 in use, the upper end of the hanging rope 2 is connected to the take-up device (such as a winding drum) of the aircraft (such as a drone), the lower end of the hanging rope 2 is tied into a loop-shaped rope sleeve 21, the rope sleeve 21 can be sleeved on the tongue part 112 of the hanger plate 11, the hanger rod 12 is provided with a channel 121 for the hanging rope 2 to pass through, the entrance of the channel 121 is located at the center position of the upper end surface of the hanger rod 12 away from the second support 113, the exit of the channel 121 is located at the back side of the rod body of the hanger rod 12 away from the tongue part 112, close to the lower end, the rod body of the hanger rod 12 is internally defined to form the channel 121 passing through the entrance and the exit, for the hanging rope 2 to pass through. The rope sleeve 21 at the lower end of the hanging rope 2 passes out of the exit of the channel 121, surrounds the rod body and has a larger circumference than the rod body, so as to be able to be sleeved on the tongue part 112 of the hanger plate 11 in the state of hanging the goods 4 as shown.

[0041] The goods 4 can be the goods themselves or a box for holding the goods. A handle is provided on the upper front surface of the goods (or box) for the hanger 1 to hang. In this embodiment, a strip of adhesive tape 41 is attached to the upper front surface and both sides of the rectangular goods 4 (or box). The two ends of the adhesive tape 41 are firmly attached to the sides of the goods 4, and the upper part of the adhesive tape 41 is separated from the upper surface of the goods 4 by a diaphragm, so that a space is formed between the upper part of the adhesive tape 41 and the upper surface of the goods 4, which serves as a handle. When the hanger 1 is in use, the hanging plate 11 is inserted into this space, and the protruding tongue 112 at the front end of the hanging plate 11 protrudes from the front end of the adhesive tape 41. Therefore, the width of the hanging plate 11 should be greater than the width of the adhesive tape 41 so that the protruding tongue 112 is sufficient to protrude from the adhesive tape 41.

[0042] Cooperate Figures 9-17 When the cargo loading and unloading device of the present invention is used, the lower end of the hanging rope 2 is first passed through the hole 121 of the hanging rod 12, and the lower end of the hanging rope 2 that passes through the hole 121 is made into a rope loop 21, which is then wrapped around the hanging rod 12.

[0043] Next, insert the front end of the hanging plate 11 into the space between the tape 41 and the cargo 4, so that the protruding part 112 protrudes from the front side of the tape 41, the rope loop 21 is looped around the protruding part 112, and the two push rods 32 are attached to the side edge of the tape 41 away from the protruding part 112.

[0044] Then, the aircraft lifts the hanging rope 2 upwards to hoist the cargo 4, as shown. Figures 9-11 As shown, the force of the torsion spring on push rod 32 is less than the weight of cargo 4, and push rod 32 is pushed flat until it adheres to tape 41. The two push rods 32 are in a straight line and perpendicular to the hanging rod 12.

[0045] Once cargo 4 has been transported to its destination and unloaded, as follows: Figure 12 and Figure 15 As shown, the hanging rope 2 loosens, the rope loop 21 disengages from the tongue 112, and the two push rods 32 move toward the tape 41 under the action of the torsion spring. Since the weight of the goods 4 is large, the push rods 32 push against the edge of the tape 41 and will be subjected to a reverse force, which will push the entire device out of the space between the goods 4 and the tape 41, and the device will separate from the goods 4. During this process, in order to prevent the tape 41 from passing through the gap between the push rod 32 and the upper surface of the hanging plate 11, a downwardly protruding limiting block 34 (or limiting post) is provided on the lower surface of the end of the push rod 32 away from the first support 31. A circular arc-shaped groove 111 is provided on the hanging plate 11 at the position corresponding to the limiting block 34. The groove 111 is a circular arc-shaped groove with the first rotating shaft 33 as the center and the distance between the limiting block 34 and the first rotating shaft 33 as the radius. When the push rod 32 rotates, the limiting block 34 can move in the groove 111, which does not affect the rotation of the push rod 32, and can also prevent the tape 41 from passing through the bottom of the push rod 32 through the setting of the limiting block 34.

[0046] Finally, the aircraft is used to lift the hanging rope 2 upwards, the hanging rope 2 lifts the device upwards together, leaving the goods 4, completing the transportation of the goods 4, as shown in Figures 13-14 and Figures 16-17 .

[0047] Embodiment 2:

[0048] Referring to Figures 18-25 , the device for loading and exiting goods of the aircraft provided by another preferred embodiment of the present application, as described above, when the adhesive tape 41 is used as the handle on the goods 4, there is a risk that the adhesive tape 41 will pass through the bottom of the push rod 32 when the push rod 32 is in action, resulting in the push rod 32 failing to smoothly push against the edge of the adhesive tape 41 and failing to exit the goods. Therefore, the measures taken in the above-mentioned embodiment 1 are to provide a limiting block 34 (or a limiting column) at the bottom of the push rod 32 and to provide a sliding groove 111 on the hanging plate 11 at a corresponding position, and when the push rod 32 is in action, the limiting block 34 is slidably arranged in the sliding groove 111, and the arrangement of the limiting block 34 can prevent the adhesive tape 41 from passing through the bottom of the push rod 32. However, the existence of the sliding groove 111 may cause the adhesive tape 41 to be stuck in the sliding groove 111. Therefore, as an optimization scheme, the sliding groove 111 on the hanging plate 11 and the limiting block 34 on the push rod 32 are cancelled in this embodiment 2, and instead, a limiting groove 322 is provided on the side of the push rod 32 facing the loading port, the opening of the limiting groove 322 faces the direction of the adhesive tape 41 and the width of the limiting groove 322 is greater than the thickness of the adhesive tape 41, and before the goods fall to the ground, the adhesive tape 41 is located in the limiting groove 322, as shown in Figures 22-23 , after the goods fall to the ground, the hanging rope 2 is loosened, and the push rod 32 pushes the adhesive tape 41 away under the action of the torsional spring, as shown in Figures 24-25 , which can prevent the adhesive tape 41 from passing through the bottom of the push rod 32.

[0049] Specifically, the push rod 32 can include a side plate, a top plate and a bottom plate 321, the top plate and the bottom plate 321 are arranged on the upper and lower sides of the side plate, and the cross section of the top plate and the side plate after being connected is in inverted L shape, the bottom plate 321 is attached to the upper surface of the hanging plate 11 and the bottom plate 321 is located at the end position of the push rod 32 away from the first support 31, as shown in Figures 18-21 , the limiting groove 322 is located between the side plate, the top plate and the bottom plate 321, and preferably, the inner angle at the joint of the bottom plate 321 and the side plate is in circular arc angle.

[0050] The other parts and working principles of the device in this embodiment 2 are the same as those of the aforementioned embodiment 1, and will not be described here.

[0051] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be directly connected, can also be indirectly connected through intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0052] In the description of the application, it is necessary to understand that the terms "upper", "lower", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0053] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0054] The embodiments of the application are described in detail above in combination with the drawings, but the application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations of these embodiments without departing from the principles and spirits of the application still fall within the protection scope of the application.

Claims

1. A cargo loading and egress device for an aircraft, characterized by: The device comprises a hanger and a hanging rope provided with a rope sleeve, the hanger comprises a hanger plate and a hanger rod, the lower end of the hanger rod is fixedly or rotatably connected to the upper surface of the hanger plate, the side of the hanger rod and the upper surface of the hanger plate form a loading port for loading goods, the hanger plate is provided with a tongue part for sleeving the rope sleeve at the position corresponding to the loading port, and the hanger rod is provided with a hole for sleeving the hanging rope.

2. A cargo loading and egress retraction device for an aircraft as defined in claim 1, wherein: The device is provided with an exit assembly movably arranged at the position corresponding to the loading port, and the exit assembly assists the loading port of the hanger to exit the goods.

3. A cargo loading and egress device for an aircraft as defined in claim 2, wherein: The exit assembly comprises an elastic connecting support and a push rod, the support is fixed to the hanger, and the push rod is elastically inserted into the loading port in the direction opposite to the direction of exiting the goods.

4. The cargo loading and egress device for an aircraft of Claim 3, characterized by: The elastic force of the push rod is smaller than the gravity of the goods but larger than the gravity of the device itself.

5. A cargo loading and egress device for an aircraft as defined in claim 4, wherein: The first end of the push rod is rotatably connected to the support, and a torsional spring is arranged at the rotating connection position, and the torsional force of the torsional spring provides the elastic force.

6. A cargo loading and egress device for an aircraft as defined in claim 5, wherein: The support is fixed to the upper surface of the hanger plate and is internally provided with a rotating shaft perpendicular to the upper surface of the hanger plate, and the push rod rotates around the rotating shaft.

7. A cargo loading and egress device for an aircraft as defined in claim 6, wherein: The side of the push rod facing the loading port forms a limiting groove for accommodating the handle of the goods.

8. A cargo loading and egress device for an aircraft as defined in any of claims 1-7, characterized by: The push rod comprises a side plate, a top plate and a bottom plate, the top plate and the bottom plate are oppositely arranged on both sides of the side plate, the bottom plate is attached to the upper surface of the hanger plate and is located at the position of the hanger rod away from the support. The side of the hanger away from the loading port is detachably connected with a counterweight.

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