Landing buffer mechanism of unmanned aerial vehicle

Abstract

The utility model provides a landing buffer mechanism of an unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles. Comprising an unmanned aerial vehicle body, a landing platform, a buffer assembly and a fixing assembly, the unmanned aerial vehicle body is arranged at the top of the landing platform, the buffer assembly is arranged on the landing platform, and the fixing assembly is arranged on the buffer assembly; the fixing assembly comprises a base which is arranged at the bottom of the unmanned aerial vehicle body. The buffer assembly comprises a support and moving blocks, the support is arranged between the landing platform and the base, the sides, close to the support, of the landing platform and the base are fixedly connected with fixed blocks, and the moving blocks are arranged on the two sides of the support. The base drives the moving block to move in the support along the sliding block through the connecting rod, the moving block extrudes the spring piece, the spring piece is stressed and contracted, the spring piece is reset after the stress of the spring piece is reduced, the spring piece repeatedly reduces the acting force generated by landing of the unmanned aerial vehicle body, and then the buffering effect of the buffering mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the field of unmanned aerial vehicle technology, in particular to a landing buffer mechanism of an unmanned aerial vehicle. Background Art

[0002] The landing cushion mechanism of a drone is usually designed to reduce the impact and vibration during landing to protect the body and internal equipment from damage. The following are common types of drone landing cushion mechanisms: Spring energy absorption type: Use springs or other elastic materials to absorb the energy during landing.

[0003] The existing patent CN217294901U discloses a landing buffer mechanism for drones. 1. Through the buffer support assembly, it is convenient for the staff to automatically move the position of the connection block during the movement of the fixed plate, so that the four connection blocks are in contact with the bottom surface, enhancing the stability of the fixed plate when placed. At the same time, it is also convenient for the staff to perform multiple buffering treatments on the fixed plate when it is placed to avoid excessive impact force during landing, which causes the fixed plate to shake violently. 2. Through the positioning protection assembly, it is convenient for the staff to limit the position of the protective cover, reducing the difficulty of the staff to install the protective cover, thereby facilitating the staff to place the airbag for protection, so that the fixed plate can float on the water surface during landing, further increasing the landing range of the fixed plate.

[0004] This patent solves the problem of violent shaking of the drone due to the large impact force generated when landing. However, this patent still has the following shortcomings, such as: the limit block in this patent limits the second spring telescopic column, so that the second spring telescopic column always remains tilted, which may cause the second spring telescopic column to rotate prematurely due to air resistance when the drone is landing, which may reduce the number of buffering times of the drone, which is not conducive to improving the buffering effect of the buffer mechanism, nor is it conducive to improving the stability of the drone when landing.

[0005] Therefore, the utility model provides a landing buffer mechanism for a UAV. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings in the prior art and provide a landing buffer mechanism for an unmanned aerial vehicle.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a landing buffer mechanism of a drone, comprising a drone body, a landing platform, a buffer component, and a fixing component, wherein the drone body is arranged on the top of the landing platform, the buffer component is arranged on the landing platform, and the fixing component is arranged on the buffer component;

[0008] The fixing assembly includes a base, and the base is arranged at the bottom of the drone body;

[0009] The buffer assembly includes a bracket and a moving block, the bracket is arranged between the landing platform and the base, the landing platform and the side of the base close to the bracket are fixedly connected with a fixed block, the moving block is arranged on both sides of the bracket, a spring sheet is fixedly connected between the moving block and the bracket, and a connecting rod is arranged between the moving block and the fixed block.

[0010] As a preferred embodiment, a rotating shaft is fixedly connected to one side of the fixed block and the movable block close to the connecting rod, and the connecting rod is rotatably connected to the fixed block and the movable block via the rotating shaft.

[0011] The technical effect of adopting the above further solution is: the rotating shaft is installed so that the connecting rod can stop rotating between the moving block and the fixed block, thereby allowing the base to move downward.

[0012] As a preferred embodiment, a slider is fixedly connected to one side of the bracket close to the moving block, a slide groove is provided on one side of the moving block close to the slider, and the moving block is slidably connected to the bracket via the slider and the slide groove.

[0013] The technical effect of adopting the above further solution is: a slide groove is opened to allow the moving block to slide along the slider inside the bracket, thereby preventing the moving block from sliding out of the bracket, avoiding damage to the buffer mechanism, and helping to improve the stability of the buffer mechanism.

[0014] As a preferred embodiment, an electromagnet is fixedly connected to one side of the drone body close to the base, a metal sheet is fixedly connected to one side of the base close to the electromagnet, and the drone body is fixed to the base via the electromagnet and the metal sheet.

[0015] The technical effect of adopting the above further scheme is: starting the electromagnet to make it magnetic, and when the electromagnet is close to the metal sheet, the drone body is adsorbed on the metal sheet through the electromagnet, thereby preventing the drone body from bouncing up when landing, which is beneficial to improving the stability of the drone when landing.

[0016] As a preferred embodiment, a lamp bead is arranged on a side of the base close to the drone body.

[0017] The technical effect of adopting the above further solution is: by starting the light beads, the buffer mechanism can be clearly observed at night, and the drone body can also land on the base at night.

[0018] As a preferred embodiment, a protective shell is fixedly connected to one side of the landing platform close to the base, and the base is located on the inner side of the protective shell.

[0019] The technical effect of adopting the above further solution is: installing a protective shell on the landing platform, and installing the buffer assembly and the fixing assembly inside the protective shell, so that the protective shell can better protect the inside of the buffer mechanism and avoid accidental damage to the buffer mechanism.

[0020] Compared with the prior art, the advantages and positive effects of the utility model are:

[0021] 1. By setting a buffer component, when the drone body lands on the base, the base drives the moving block to move along the slider inside the bracket through the connecting rod, so that the moving block squeezes the spring sheet, and the spring sheet contracts under force. After the force on the spring sheet is reduced, it resets, so that the spring sheet repeatedly reduces the force generated by the landing of the drone body, thereby improving the buffering effect of the buffer mechanism.

[0022] 2. By setting up a fixing component and an electromagnet, when the drone body flies to the top of the base and prepares to land, the electromagnet is started to drive the magnetism so that the drone body is fixed to the base through the electromagnet and the metal sheet, thereby preventing the drone body from bouncing up when landing, which is beneficial to improving the stability of the drone when landing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a landing buffer mechanism of a UAV provided by the utility model;

[0024] Figure 2 A schematic diagram of the structure of a buffer component in a landing buffer mechanism of a drone provided by the utility model;

[0025] Figure 3 This is a disassembled diagram of a bracket in a landing buffer mechanism of a drone provided by the utility model;

[0026] Figure 4 The utility model provides a structural schematic diagram of a fixed component in a landing buffer mechanism of an unmanned aerial vehicle.

[0027] Legend:

[0028] 1. UAV body; 2. Landing platform; 3. Protective shell; 4. Buffer assembly; 5. Fixing assembly; 6. Electromagnet; 41. Bracket; 42. Connecting rod; 43. Fixing block; 44. Moving block; 45. Spring sheet; 46. Rotating shaft; 47. Slider; 48. Slide groove; 51. Base; 52. Metal sheet; 53. Lamp beads. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1 - Figure 4 As shown, this embodiment provides a technical solution: a landing buffer mechanism of a drone, comprising a drone body 1, a landing platform 2, a buffer component 4, and a fixing component 5, wherein the drone body 1 is arranged on the top of the landing platform 2, the buffer component 4 is arranged on the landing platform 2, and the fixing component 5 is arranged on the buffer component 4;

[0031] like Figure 4 As shown, the fixing assembly 5 includes a base 51, and the base 51 is arranged at the bottom of the drone body 1;

[0032] like Figure 2 As shown, the buffer assembly 4 includes a bracket 41 and a moving block 44. The bracket 41 is arranged between the landing platform 2 and the base 51. The landing platform 2 and the base 51 are fixedly connected to a fixed block 43 on one side close to the bracket 41. The moving block 44 is arranged on both sides of the bracket 41. A spring sheet 45 is fixedly connected between the moving block 44 and the bracket 41. A connecting rod 42 is arranged between the moving block 44 and the fixed block 43. By installing the connecting rod 42 between the fixed block 43 and the moving block 44, when the drone lands on the base 51, the base 51 drives the connecting rod 42 to push the moving block 44 to squeeze the spring sheet 45 by moving downward. The spring sheet 45 is compressed, thereby reducing the impact force of the drone body 1 when landing, solving the problem of poor buffering effect of the buffer structure. After the base 51 moves down more than a certain distance, the fixed block 43 at the bottom of the base 51 contacts the bracket 41, pushing the bracket 41 to contact the fixed block 43 on the landing platform 2, thereby forcibly stopping the displacement of the base 51, and preventing the spring sheet 45 from being subjected to excessive pressure and causing damage to it.

[0033] A rotating shaft 46 is fixedly connected to one side of the fixed block 43 and the movable block 44 close to the connecting rod 42. The connecting rod 42 is rotatably connected to the fixed block 43 and the movable block 44 via the rotating shaft 46. By installing the rotating shaft 46, the connecting rod 42 can rotate between the movable block 44 and the fixed block 43, so that the base 51 can move downward.

[0034] Furthermore, a slider 47 is fixedly connected to one side of the bracket 41 near the moving block 44, and a slide groove 48 is provided on one side of the moving block 44 near the slider 47. The moving block 44 is slidably connected to the bracket 41 through the slider 47 and the slide groove 48. By providing the slide groove 48, the moving block 44 can slide inside the bracket 41 along the slider 47, thereby preventing the moving block 44 and the inside of the bracket 41 from sliding out, avoiding damage to the buffer mechanism, and helping to improve the stability of the buffer mechanism.

[0035] In the above scheme, there is still a problem that the drone is subjected to reaction force when landing, which may cause the drone to bounce during the landing process, such as Figure 4 As shown, an electromagnet 6 is fixedly connected to one side of the drone body 1 close to the base 51, and a metal sheet 52 is fixedly connected to one side of the base 51 close to the electromagnet 6. The drone body 1 is fixed to the base 51 through the electromagnet 6 and the metal sheet 52. By starting the electromagnet 6, the electromagnet 6 is made magnetic. When the electromagnet 6 is close to the metal sheet 52, the drone body 1 is adsorbed on the metal sheet 52 through the electromagnet 6, thereby preventing the drone body 1 from bouncing up when landing, which is beneficial to improving the stability of the drone when landing.

[0036] A lamp bead 53 is provided on one side of the base 51 close to the drone body 1 . By starting the lamp bead 53 , the buffer mechanism can be clearly observed at night, so that the drone body 1 can land on the base 51 at night.

[0037] A protective shell 3 is fixedly connected to one side of the landing platform 2 close to the base 51, and the base 51 is located on the inner side of the protective shell 3. By installing the protective shell 3 on the landing platform 2 and installing the buffer component 4 and the fixing component 5 inside the protective shell 3, the protective shell 3 can better protect the inside of the buffer mechanism and avoid accidental damage to the buffer mechanism.

[0038] Working principle: Figure 1 - Figure 4 As shown:

[0039] When in use: first control the drone body 1 to fly near the base 51, prepare for landing, start the electromagnet 6, make the electromagnet 6 magnetic, when the drone body 1 is close to the base 51, the electromagnet 6 is attracted by the metal sheet 52, so that the drone body 1 is fixed on the top of the base 51, to prevent the drone body 1 from being bounced up by the reaction force when landing, thereby improving the stability of the drone when landing, when the drone body 1 contacts the base 51, the base 51 moves downward due to the force of the drone body 1, so that the base 51 drives the moving block 44 to move along the slider 47 through the connecting rod 42, so that the moving block 44 squeezes the spring sheet 45 on the inner side of the bracket 41, so that the spring sheet 45 is forced to shrink, and then the buffer mechanism reduces the impact force generated when the drone body 1 lands, which is beneficial to improve the buffering effect of the buffer mechanism, and when the spring sheet 45 is subjected to excessive force, the base 51 pushes the bracket 41 downward through the fixed block 43, so that the bracket 41 contacts the fixed block 43 on the moving landing platform 2, thereby forcibly stopping the base 51 from falling, to prevent the spring sheet 45 from being damaged due to excessive force.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A landing buffer mechanism for an unmanned aerial vehicle, comprising an unmanned aerial vehicle body (1), a landing platform (2), a buffer component (4), and a fixing component (5), characterized in that: The drone body (1) is arranged on the top of the landing platform (2), the buffer component (4) is arranged on the landing platform (2), and the fixing component (5) is arranged on the buffer component (4); The fixing assembly (5) comprises a base (51), and the base (51) is arranged at the bottom of the drone body (1); The buffer assembly (4) comprises a bracket (41) and a moving block (44); the bracket (41) is arranged between the landing platform (2) and the base (51); a fixed block (43) is fixedly connected to one side of the landing platform (2) and the base (51) close to the bracket (41); the moving block (44) is arranged on both sides of the bracket (41); a spring sheet (45) is fixedly connected between the moving block (44) and the bracket (41); and a connecting rod (42) is arranged between the moving block (44) and the fixed block (43).

2. The landing buffer mechanism of a drone according to claim 1, characterized in that: A rotating shaft (46) is fixedly connected to one side of the fixed block (43) and the movable block (44) close to the connecting rod (42), and the connecting rod (42) is rotatably connected to the fixed block (43) and the movable block (44) via the rotating shaft (46).

3. The landing buffer mechanism of a drone according to claim 1, characterized in that: A slider (47) is fixedly connected to one side of the bracket (41) close to the moving block (44); a slide groove (48) is provided on one side of the moving block (44) close to the slide groove (47); and the moving block (44) is slidably connected to the bracket (41) via the slider (47) and the slide groove (48).

4. The landing buffer mechanism of a drone according to claim 1, characterized in that: An electromagnet (6) is fixedly connected to one side of the drone body (1) close to the base (51).

5. The landing buffer mechanism of a drone according to claim 1, characterized in that: A metal sheet (52) is fixedly connected to a side of the base (51) close to the electromagnet (6), and the drone body (1) is fixed to the base (51) via the electromagnet (6) and the metal sheet (52).

6. The landing buffer mechanism of a drone according to claim 5, characterized in that: A lamp bead (53) is arranged on a side of the base (51) close to the drone body (1).

7. The landing buffer mechanism of an unmanned aerial vehicle according to claim 1, characterized in that: A protective shell (3) is fixedly connected to one side of the landing platform (2) close to the base (51), and the base (51) is located on the inner side of the protective shell (3).

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