A rescue capsule lifting system for an unmanned helicopter

Abstract

The application is suitable for the technical field of unmanned aerial vehicle rescue, and provides a lifesaving cabin lifting system of unmanned helicopter, which comprises an unmanned aerial vehicle body, a main docking mechanism and multiple auxiliary docking mechanisms. The lifesaving cabin lifting system of unmanned helicopter is provided with two lifting devices, a main docking mechanism and multiple auxiliary docking mechanisms. The two lifting devices in the device are used as lifting mechanisms to preliminarily hang the lifesaving shelter, and then the lifesaving cabin is fixed to the fuselage through the main docking mechanism and multiple auxiliary docking mechanisms, thereby avoiding manual assembly. After the positioning and fixing of the lifesaving shelter are realized, the lifesaving cabin can be flown to a designated location, and the task location is flexible and changeable. The main docking mechanism and multiple auxiliary docking mechanisms further increase the magnetic secondary fixation on the basis of mechanical fixation, thereby further ensuring the stability of the lifesaving shelter in the transportation process. Meanwhile, under the action of the connection of multiple structures, the stress of the fixing part is dispersed, the safety is higher, and a higher weight object can be carried.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of unmanned aerial vehicle rescue, and particularly relates to a lifesaving cabin lifting system of an unmanned helicopter. BACKGROUND

[0002] The unmanned helicopter is widely applied in the fields of transportation and rescue due to its vertical take-off and landing and low-altitude hovering. The unmanned helicopter carrying a lifesaving cabin is an application form of helicopter rescue, and the attitude stability of the lifesaving cabin during the carrying process is a research direction that is widely concerned at present.

[0003] The patent with the publication number CN109513131A discloses a roof helicopter lifesaving cabin, which comprises a lifesaving cabin, a helicopter landing gear, a lifesaving cabin handle and a locking bolt. When the helicopter hovers above the lifesaving cabin, the helicopter landing gear and the lifesaving cabin handle are fixed by the fixing bolt. When the helicopter is in the hovering state, it is not completely stationary in space, and the attitude of the fuselage is also not completely stable. It is difficult to fix the helicopter landing gear and the lifesaving cabin handle by the fixing bolt. In addition, the fixing of the bolt requires more manpower and material resources, and the positioning and assembly take too long time, which is not convenient for dealing with emergency situations.

[0004] The patent with the publication number CN102058943A discloses a design scheme of a lifesaving cabin and a fire extinguishing water gun hoisted by a helicopter or an airship, which hoists the lifesaving cabin to the fire floor by the helicopter, erects a lifesaving bridge between the lifesaving cabin and the floor, and then lowers the lifesaving cabin to the ground after the escape personnel are concentrated. It is not suitable for the hoisting flight state.

[0005] The utility model patent with the publication number CN101980399U discloses a helicopter offshore positioning hoisting rescue system, which comprises a telescopic sleeve boom and a lifting device. The lifesaving cabin is stable in attitude during the lowering process by the rigid sleeve boom. When the lifesaving cabin shakes in attitude, the rigid sleeve boom is subjected to complex stress, and its service life is difficult to guarantee. In addition, the sleeve boom has a high failure rate and large loss.

[0006] The patent with the publication number CN110356558A discloses an adjustable connecting device for a fixed external hanging container of a helicopter, which can realize large-range adjustment of three-dimensional space size and is convenient for installing the fixed external hanging container. However, it is only suitable for external hanging objects with light weight, and manual assembly is required. SUMMARY

[0007] The present application provides a lifesaving cabin lifting system of an unmanned helicopter, which aims to solve the problems of the current unmanned helicopter rescue system, such as inconvenience, poor applicability and high failure rate.

[0008] The application is achieved by a lifesaving cabin lifting system of an unmanned helicopter, comprising a helicopter body, a main docking mechanism and multiple auxiliary docking mechanisms;

[0009] The main docking mechanism and the multiple auxiliary docking mechanisms are arranged at the bottom end of the helicopter body.

[0010] The main docking mechanism comprises a first device shell in the shape of an inverted bowl fixedly connected to the middle part of the bottom end of the helicopter body, the lower surface of the first device shell is fixedly connected with multiple first partition rings with uniform outer diameter reduction from outside to inside, multiple first balls in annular distribution are movably arranged between every two adjacent first partition rings, and the middle part of the lower surface of the first device shell is fixedly connected with a first magnetic attraction block.

[0011] The multiple auxiliary docking mechanisms are identical in structure, one of the auxiliary docking mechanisms comprises a second device shell in the shape of an inverted bowl fixedly connected to the bottom end of the helicopter body and located at one side of the first device shell, the lower surface of the second device shell is fixedly connected with multiple second partition rings with uniform outer diameter reduction from outside to inside, multiple second balls in annular distribution are movably arranged between every two adjacent second partition rings, and the middle part of the lower surface of the second device shell is fixedly connected with a second magnetic attraction block.

[0012] Preferably, the multiple auxiliary docking mechanisms are arranged at both sides of the main docking mechanism respectively, and the number of the auxiliary docking mechanisms at both sides is identical.

[0013] Preferably, the outer edges of the bottom end of the helicopter body are fixedly connected with lifting devices respectively, the bottom ends of the ropes on the two lifting devices are detachably installed with connecting pieces through hooks, and the bottom ends of the two connecting pieces are fixedly connected with a lifesaving shelter.

[0014] Preferably, the top end of the lifesaving shelter is fixedly connected with multiple docking disc structures corresponding to the main docking mechanism and the multiple auxiliary docking mechanisms respectively.

[0015] Preferably, the multiple docking disc structures are identical in structure, one of the docking disc structures comprises a fixed disc fixedly connected to the upper surface of the lifesaving shelter, a boss is formed on the middle part of the fixed disc, the middle part of the top end of the boss is fixedly connected with a third magnetic attraction block which is attracted to the first magnetic attraction block and the multiple second magnetic attraction blocks.

[0016] Preferably, the outer contour of the upper surface of the boss is matched with the inner contour of the lower surface of the first device shell and the multiple second device shells.

[0017] Preferably, the top end of the first device shell and the plurality of second device shells are fixedly connected with a connecting disc, and the first device shell and the plurality of second device shells are fixedly connected to the bottom end of the unmanned aerial vehicle body through the connecting disc.

[0018] Preferably, the bottom end of the plurality of second device shells is located at a horizontal plane higher than the horizontal plane at the bottom end of the first device shell.

[0019] Advantages

[0020] Compared with the prior art, the advantages of the present application are: the lifesaving cabin lifting system of the unmanned helicopter of the present application, by setting two lifting devices, a main docking mechanism and a plurality of auxiliary docking mechanisms, the device realizes preliminary hanging of the lifesaving cabin through the two lifting devices as lifting mechanisms, and then realizes fixation of the lifesaving cabin and the fuselage through the main docking mechanism and the plurality of auxiliary docking mechanisms, avoiding manual assembly, after positioning and fixation of the lifesaving cabin are realized, the lifesaving cabin can be flown to a designated location, the task location is flexible and variable, and the main docking mechanism and the plurality of auxiliary docking mechanisms further increase secondary fixation through magnetic attraction on the basis of mechanical fixation, further ensuring the stability of the posture of the lifesaving cabin during transportation, and under the action of the connection of a plurality of structures, the stress of the fixing part is dispersed, the safety is higher, and a higher weight object can be carried. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 FIG. 1 is a structural diagram of the main docking mechanism and the plurality of auxiliary docking mechanisms of the present application;

[0022] Figure 2 FIG. 1 is a structural diagram of the main docking mechanism and the plurality of auxiliary docking mechanisms of the present application;

[0023] Figure 3 FIG. 1 is a structural diagram of the main docking mechanism and the plurality of auxiliary docking mechanisms of the present application;

[0024] Figure 4 FIG. 1 is a structural diagram of the main docking mechanism and the plurality of auxiliary docking mechanisms of the present application;

[0025] Figure 5 FIG. 1 is a structural diagram of the main docking mechanism and the plurality of auxiliary docking mechanisms of the present application.

[0026] In the figure: 1 - unmanned aerial vehicle body, 2 - lifting device, 3 - connecting piece, 4 - lifesaving cabin, 5 - first device shell, 6 - first partition ring, 7 - first ball, 8 - first magnetic block, 9 - second device shell, 10 - second partition ring, 11 - second ball, 12 - second magnetic block, 13 - fixed disc, 14 - boss, 15 - third magnetic block. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0028] Please refer to Figures 1-5 The present application provides a technical scheme: a lifesaving cabin lifting system of unmanned helicopter, comprising unmanned aerial vehicle body 1, main docking mechanism and multiple auxiliary docking mechanisms;

[0029] The outer edges of the bottom ends of the unmanned aerial vehicle body 1 are fixedly connected with lifting devices 2, the bottom ends of the ropes on the two lifting devices 2 are detachably installed with connecting plates 3, and the bottom ends of the two connecting plates 3 are fixedly connected with lifesaving shelters 4.

[0030] In the embodiment, the two lifting devices 2 each comprise a buffer, a rope and a hook, the buffer is driven by a motor, the rope is assembled on the buffer, the bottom end of the rope is fixedly connected with the hook, the bottom end of the hook is detachably installed with a circular ring, the connecting plate 3 is fixedly connected with the circular ring, and the lifesaving shelter 4 and the unmanned aerial vehicle body 1 are connected through the secondary structure. The two lifting devices 2 are respectively located on the two sides of the unmanned aerial vehicle body 1, and also support the two sides of the lifesaving shelter 4, so that the possibility of rollover of the lifesaving shelter 4 is reduced, and the safety performance of the device is improved.

[0031] In order to ensure that the heights of the two sides of the lifesaving shelter 4 are the same during lifting, the buffers of the two sections of the fuselage are synchronously controlled, two points are taken on the horizontal symmetry surface of the lower surface of the unmanned aerial vehicle body 1 to install sensors, the distance between the sensor installation points and the corresponding points of the unmanned aerial vehicle body 1 is fed back, the distance difference is used to reflect the angle difference between the upper surface of the lifesaving shelter 4 and the lower surface of the unmanned aerial vehicle body 1, the angle difference is used as a signal to control the buffer motor and adjust the lifting speed of the ropes at both ends, so that the lifesaving cabin is continuously and stably realized.

[0032] Meanwhile, after the lifesaving shelter 4 is successfully docked and fixed, the feedback distance of the sensor reaches a certain special value, and the distance is used as a feedback signal to control the buffer to stop working.

[0033] Further, the main docking mechanism and the multiple auxiliary docking mechanisms are arranged at the bottom end of the unmanned aerial vehicle body 1.

[0034] The main docking mechanism comprises a first device shell 5 in the shape of an inverted bowl fixedly connected to the middle part of the bottom end of the unmanned aerial vehicle body 1, a plurality of first partition rings 6 with uniform outer diameter reduction from outside to inside are fixedly connected to the lower surface of the first device shell 5, a plurality of first ball bearings 7 arranged in a ring are movably arranged between every two adjacent first partition rings 6, and a first magnetic attraction block 8 is fixedly connected to the middle part of the lower surface of the first device shell 5.

[0035] The structures of the plurality of secondary docking mechanisms are identical. One of the secondary docking mechanisms includes a second device shell 9 in the shape of an inverted bowl fixedly connected to the bottom end of the UAV body 1 on one side of the first device shell 5. The lower surface of the second device shell 9 is fixedly connected with a plurality of second partition rings 10 with uniform outer diameters decreasing from outside to inside. A plurality of second balls 11 are movably arranged in a ring shape between every two adjacent second partition rings 10. The middle part of the lower surface of the second device shell 9 is fixedly connected with a second magnetic block 12.

[0036] The top end of the survival pod 4 is fixedly connected with a plurality of docking disc structures corresponding to the primary docking mechanism and the plurality of secondary docking mechanisms.

[0037] The structures of the plurality of docking disc structures are identical. One of the docking disc structures includes a fixed disc 13 fixedly connected to the upper surface of the survival pod 4. The middle part of the fixed disc 13 is convexly formed with a convex seat 14. The middle part of the top end of the convex seat 14 is fixedly connected with a third magnetic block 15 attracting the first magnetic block 8 and the plurality of second magnetic blocks 12.

[0038] The outer contour of the upper surface of the convex seat 14 is adapted to the inner contour of the lower surfaces of the first device shell 5 and the plurality of second device shells 9.

[0039] The horizontal plane where the bottom ends of the plurality of second device shells 9 are located is higher than the horizontal plane where the bottom end of the first device shell 5 is located.

[0040] In the present embodiment, during the positioning of the primary docking mechanism, the positioning of the plurality of secondary docking mechanisms also starts. Since the horizontal plane where the bottom ends of the plurality of second device shells 9 are located is higher than the horizontal plane where the bottom end of the first device shell 5 is located, the positioning interface height of the plurality of secondary docking mechanisms is higher than the positioning interface height of the primary docking mechanism. The survival pod 4 is limited within a certain range by the lifting device 2, which can ensure that the plurality of docking disc structures around can be smoothly positioned and docked with the plurality of secondary docking mechanisms during the docking of the central docking disc structure and the primary docking mechanism.

[0041] If the rescue capsule 4 has a certain angle deviation relative to the fuselage during docking, the upper surface of the convex seat 14 in the plurality of docking disc structures will first contact the first ball 7 or the plurality of second balls 11 in the main docking mechanism or the auxiliary docking mechanism. With the further action of the lifting device 2, the height of the rescue capsule 4 continues to increase. Since the inner surface of the main docking mechanism and the auxiliary docking mechanism presents an arc shape pointing to the central groove, the rescue capsule 4 is subjected to an upward pulling force and a central groove pushing force at the same time, generating a sliding trend towards the central groove. At the same time, the plurality of first balls 7 and the plurality of second balls 11 reduce the resistance of the friction force to the movement trend of the rescue capsule 4, so that the rescue capsule 4 can smoothly realize the movement towards the central groove, so that the convex seat 14 of the plurality of docking disc structures can respectively move to the center of the main docking mechanism or the auxiliary docking mechanism. Then, under the action of the first magnetic block 8, the second magnetic block 12 and the third magnetic block 15, the plurality of docking disc structures are respectively fixed in the main docking mechanism and the plurality of auxiliary docking mechanisms, so as to realize complete positioning.

[0042] Further, the plurality of auxiliary docking mechanisms are respectively arranged on both sides of the main docking mechanism, and the number of auxiliary docking mechanisms on both sides is the same.

[0043] In the embodiment, the same number of auxiliary docking mechanisms on both sides can ensure that the forces received by the rescue capsule 4 on both sides are the same, thereby ensuring the stability of the rescue capsule.

[0044] Further, the top end of the first device shell 5 and the plurality of second device shells 9 is fixedly connected with a connecting disc, and the first device shell 5 and the plurality of second device shells 9 are fixedly connected to the bottom end of the unmanned aerial vehicle body 1 through the connecting disc.

[0045] In the embodiment, a connecting hole is formed through the connecting disc, and the connecting disc is fixedly installed by screws during installation.

[0046] The working principle and use process of the present application: after the present application is installed, in use, first, the unmanned aerial vehicle body 1 carries the lifesaving shelter 4 to the place where rescue is needed, after the wounded enters the lifesaving shelter 4, the operation of the two lifting devices 2 is controlled to drive the lifesaving shelter 4 to move upwards, in the process of moving upwards, if the lifesaving shelter 4 deviates from the fuselage by a certain angle, the convex seat 14 upper surface in the plurality of docking disc structures will first contact the first ball 7 or the plurality of second balls 11 in the main docking mechanism or the auxiliary docking mechanism, with the further action of the lifting device 2, the height of the lifesaving shelter 4 continues to increase, because the inner surface of the main docking mechanism and the auxiliary docking mechanism presents an arc line shape pointing to the center groove, the lifesaving shelter 4 is subjected to upward tension at the same time and is subjected to the thrust of the center groove, the movement trend of sliding to the center groove is generated, at the same time, the plurality of first balls 7 and the plurality of second balls 11 reduce the friction resistance to the movement trend of the lifesaving shelter 4, so that the lifesaving shelter 4 can smoothly realize the movement to the center groove, so that the convex seat 14 of the plurality of docking disc structures can respectively move to the center of the main docking mechanism or the auxiliary docking mechanism, then under the action of the first magnetic block 8, the second magnetic block 12 and the third magnetic block 15, the plurality of docking disc structures are respectively fixed in the main docking mechanism and the plurality of auxiliary docking mechanisms, complete positioning can be realized, then the unmanned aerial vehicle body 1 can be controlled to move to rescue the wounded out.

[0047] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A life capsule lifting system for an unmanned helicopter, characterized by: The unmanned aerial vehicle body (1), the main docking mechanism and the plurality of auxiliary docking mechanisms are included. The main docking mechanism and the plurality of auxiliary docking mechanisms are arranged at the bottom end of the unmanned aerial vehicle body (1). The main docking mechanism includes a first device shell (5) fixedly connected to the middle part of the bottom end of the unmanned aerial vehicle body (1) and in the shape of an inverted bowl, a plurality of first partition rings (6) with uniform outer diameters decreasing from the outside to the inside are fixedly connected to the lower surface of the first device shell (5), a plurality of first balls (7) arranged in a ring shape are movably arranged between every two adjacent first partition rings (6), and a first magnetic attraction block (8) is fixedly connected to the middle part of the lower surface of the first device shell (5). The plurality of auxiliary docking mechanisms are identical in structure, one of the auxiliary docking mechanisms includes a second device shell (9) fixedly connected to the bottom end of the unmanned aerial vehicle body (1) and located on one side of the first device shell (5) and in the shape of an inverted bowl, a plurality of second partition rings (10) with uniform outer diameters decreasing from the outside to the inside are fixedly connected to the lower surface of the second device shell (9), a plurality of second balls (11) arranged in a ring shape are movably arranged between every two adjacent second partition rings (10), and a second magnetic attraction block (12) is fixedly connected to the middle part of the lower surface of the second device shell (9).

2. A rescue capsule lifting system for an unmanned helicopter as claimed in claim 1, characterised in that: The plurality of auxiliary docking mechanisms are arranged on both sides of the main docking mechanism respectively, and the number of the auxiliary docking mechanisms on both sides is identical.

3. A rescue capsule lifting system for an unmanned helicopter as claimed in claim 1, characterised in that: Lifting devices (2) are fixedly connected to the outer edges of the bottom end of the unmanned aerial vehicle body (1) on both sides, and connecting plates (3) are detachably installed on the bottom ends of the ropes of the two lifting devices (2) through hooks, and a lifesaving shelter (4) is fixedly connected to the bottom ends of the two connecting plates (3).

4. A rescue capsule lifting system for an unmanned helicopter as claimed in claim 3, characterised in that: A plurality of docking disc structures corresponding to the main docking mechanism and the plurality of auxiliary docking mechanisms are fixedly connected to the top end of the lifesaving shelter (4).

5. A life capsule lifting system for an unmanned helicopter as claimed in claim 4, characterised in that: The plurality of docking disc structures are identical in structure, one of the docking disc structures includes a fixed disc (13) fixedly connected to the upper surface of the lifesaving shelter (4), a boss (14) is formed on the middle part of the fixed disc (13), a third magnetic attraction block (15) is fixedly connected to the middle part of the top end of the boss (14) and is mutually attracted to the first magnetic attraction block (8) and the plurality of second magnetic attraction blocks (12).

6. A life capsule lifting system for an unmanned helicopter as claimed in claim 5, characterised in that: The outer contour of the upper surface of the boss (14) is adapted to the inner contour of the lower surface of the first device shell (5) and the plurality of second device shells (9).

7. A life capsule lifting system for an unmanned helicopter as claimed in claim 1, characterized in that: The top ends of the first device shell (5) and the plurality of second device shells (9) are fixedly connected with connecting discs, and the first device shell (5) and the plurality of second device shells (9) are fixedly connected to the bottom end of the unmanned aerial vehicle body (1) through the connecting discs.

8. A life capsule lifting system for an unmanned helicopter as claimed in claim 1, characterized in that: The horizontal plane where the bottom end of the plurality of second device shells (9) is located is higher than the horizontal plane where the bottom end of the first device shell (5) is located.

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