A mini quadcopter

Abstract

The utility model relates to the field of quadcopters, and specifically to a mini quadcopter, comprising an aircraft body, a mounting frame bolted to the bottom of the aircraft body, and sleeves bolted to the four corners of the bottom of the mounting frame. The utility model can effectively perform multi-layer buffering on the quadcopter through the mounting frame, the sleeve, the first spring, the concave rod and other components. When the aircraft lands, the folding support rod and the pulley at the bottom thereof will first contact the ground. When the aircraft lands at a high speed, the folding support rod will move to both sides through the pulley and squeeze the torsion spring to perform a buffering. When the folding support rod is unfolded to the maximum range on both sides, the concave rod contacts the ground again, and with the assistance of the first spring, the aircraft is buffered for the second time, thereby avoiding strong hard contact between the aircraft and the camera assembly below it and the ground, thereby improving the landing stability and service life of the aircraft.

Description

Technical Field

[0001] The utility model relates to the field of quadcopters, in particular to a mini quadcopter. Background Art

[0002] There are many types of small quadcopters on the market, including toy drones, cross-country drones, and aerial photography drones. Toy drones and aerial photography drones generally have shells produced by injection molding, while cross-country drones generally have frames but no shells.

[0003] After searching, a quadcopter with a publication number of CN202022262745.9 specifically discloses a frame and a shell assembly; the shell assembly includes a shell frame and a shell panel; the shell assembly is fixed to the frame; the shell panel is fixed to the shell frame; the shell frame has a thickness of not less than 4mm, and the shell panel has a thickness of not less than 1mm. The utility model provides a quadcopter with both a frame and a shell. On the one hand, the one-piece frame of the quadcopter provided by the utility model ensures the firmness and stability of the body; on the other hand, the quadcopter provided by the utility model realizes the closed protection of the internal electronic equipment of the whole machine through the shell frame and the shell panel. The quadcopter provided by the embodiment of the utility model has the characteristics of firm structure, beautiful appearance, easy modification and low cost.

[0004] However, the above-mentioned device still has certain defects. For example, during the use of the aircraft, the landing of the aircraft is likely to cause violent impact and vibration of its main body and installation parts, causing collision damage to the aerial photography and video recording components on the aircraft, affecting normal use. It is impossible to achieve the purpose of good protection of the aerial photography and video recording components on the aircraft during flight and landing. At the same time, the aircraft in the prior art is not convenient for installing and disassembling the video recording equipment.

[0005] Therefore, it is necessary to invent a mini quadcopter to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a mini quadcopter that can effectively solve the above-mentioned technical problems.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mini quadcopter comprises an aircraft body, a mounting frame is bolted to the bottom of the aircraft body, sleeves are bolted to the four corners of the bottom of the mounting frame, a first spring is bolted to the top of the inner cavity of the sleeve, a concave rod is slidably connected to the inner side of the inner cavity of the sleeve, and both ends of the top of the concave rod are bolted to the bottom of the first spring, a fixing seat is bolted to the back side of the mounting frame, mounting grooves are provided on both sides of the inner cavity of the fixing seat, a second spring is bolted to the inner side of the mounting groove, a slider is slidably connected to the inner side of the mounting groove, and the outer side of the slider is bolted to the other end of the second spring, a locking rod is bolted to the inner side of the slider, a rectangular groove is provided in the middle of the inner cavity of the fixing seat, a connecting block is inserted into the inner side of the rectangular groove, and a camera is bolted to the front of the connecting block.

[0008] Preferably, slots are provided on both sides of the connecting block, and the surface of the locking rod passes through the rectangular groove and is slidably plugged into the inner side of the slot. A pull rod is bolted to the outer side of the slider, and the other end of the pull rod passes through the fixed seat and is bolted to a pull ring. The connecting block can enter the slot by pulling the pull rod, and then the pull rod is released so that the pull rod is pushed by the elastic force of the second spring itself, so that the slider can push the locking rod to move into the slot, so that the locking rod is plugged and fixed to the slot.

[0009] Preferably, an extension groove is opened at the rear part of the inner cavity of the fixed seat, and a linkage gear is rotatably connected to the center of the back side of the inner cavity of the extension groove through a bearing. A gear rod is bolted to the back side of the sliding block, and the inner side of the gear rod is meshed with the surface of the linkage gear. The linkage gear rotates in the extension groove by moving the gear rod. When the linkage gear rotates, it drives the gear rod on the other side to move horizontally.

[0010] Preferably, mounting strips are bolted on both sides of the mounting frame, a rotating rod is rotatably connected to the inner side of the mounting strip via a bearing, a torsion spring is bolted to the middle of the rotating rod, and connecting rings are bolted to the front and rear of the rotating rod surface, so that the rotating rod on the inner side of the mounting strip is reset after rotation through the torsional elastic force of the torsion spring itself.

[0011] Preferably, a folding support rod is bolted to the bottom of the connecting ring, and the bottom of the folding support rod is rotatably connected to a pulley through a bearing, and a buffer sleeve is fixedly sleeved on the surface of the lower part of the concave rod. The folding support rod serves as the first supporting structure after the aircraft lands, and cooperates with the pulley and the torsion spring to provide preliminary buffering and support for the aircraft. The body of the buffer sleeve is made of rubber material, which not only provides a buffering effect, but also improves the anti-slip effect of the concave rod after contacting the ground.

[0012] Preferably, a positioning ring is bolted to the middle of the inner cavity of the rectangular groove, a positioning block is bolted to the back of the connecting block, and the inner side of the positioning ring is slidably plugged into the surface of the positioning block. The positioning ring and the positioning block can effectively improve the plug-in accuracy of the connecting block.

[0013] Preferably, an expansion power source is bolted to the top of the aircraft body, and the flight endurance of the aircraft can be effectively improved by the expansion power source.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. By installing components such as the frame, sleeve, first spring, and concave rod, the quadcopter can be effectively buffered in multiple layers. When the aircraft lands, the folding support rod and the pulley at its bottom will first contact the ground. When the aircraft lands at a high speed, the folding support rod will move to both sides through the pulley and squeeze the torsion spring for a buffer. When the folding support rod is unfolded to the maximum range on both sides, the concave rod contacts the ground again and, with the assistance of the first spring, the aircraft is buffered for a second time, thereby avoiding strong hard contact between the aircraft and the camera assembly below it and the ground, thereby improving the landing stability and service life of the aircraft.

[0016] 2. The camera assembly can be quickly installed or removed from the aircraft through the fixed seat, the mounting groove, the second spring, the slider, the locking rod and other components. When installing the camera assembly, it is only necessary to pull the pull rod through the pull ring so that the pull rod drives the slider to move to both sides and squeeze the second spring. At the same time, the other side of the slider is driven to move outward through the gear rod and the linkage gear, so that the locking rod moves toward the inside of the mounting groove, and then the connecting block is inserted into the rectangular groove. Finally, the pull ring is released so that the second spring pushes the slider to move inward through its own elastic force, and the locking rod is reinserted into the slots on both sides of the connecting block to complete the fixation, thereby effectively improving the efficiency of disassembly and assembly of the camera assembly on the aircraft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a front view of the overall structure of the utility model;

[0019] Figure 2 It is a partial structural side view of the utility model;

[0020] Figure 3 It is a top view of the internal connection structure of the installation frame of the utility model;

[0021] Figure 4 For the utility model Figure 3 A magnified view of the structure in the middle.

[0022] Description of reference numerals:

[0023] 1. Aircraft body; 2. Mounting frame; 3. Sleeve; 4. First spring; 5. Concave rod; 6. Fixed seat; 7. Mounting groove; 8. Second spring; 9. Slider; 10. Locking rod; 11. Rectangular groove; 12. Connecting block; 13. Camera; 14. Slot; 15. Pull rod; 16. Pull ring; 17. Extension groove; 18. Linkage gear; 19. Gear rod; 20. Mounting strip; 21. Rotating rod; 22. Torsion spring; 23. Connecting ring; 24. Folding support rod; 25. Pulley; 26. Buffer sleeve; 27. Positioning ring; 28. Positioning block; 29. ​​Expansion power supply. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-4 A mini quadcopter is shown, comprising an aircraft body 1, a mounting frame 2 bolted to the bottom of the aircraft body 1, sleeves 3 bolted to the four corners of the bottom of the mounting frame 2, a first spring 4 bolted to the top of the inner cavity of the sleeve 3, a concave rod 5 slidably connected to the inner side of the inner cavity of the sleeve 3, and both ends of the top of the concave rod 5 are bolted to the bottom of the first spring 4, a fixing seat 6 is bolted to the back of the mounting frame 2, mounting grooves 7 are provided on both sides of the inner cavity of the fixing seat 6, a second spring 8 is bolted to the inner side of the mounting groove 7, a slider 9 is slidably connected to the inner side of the mounting groove 7, and the outer side of the slider 9 is bolted to the other end of the second spring 8, a locking rod 10 is bolted to the inner side of the slider 9, a rectangular groove 11 is provided in the middle of the inner cavity of the fixing seat 6, a connecting block 12 is inserted into the inner side of the rectangular groove 11, and a camera 13 is bolted to the front of the connecting block 12.

[0026] Slots 14 are provided on both sides of the connecting block 12, and the surface of the locking rod 10 passes through the rectangular groove 11 and is slidably plugged into the inner side of the slot 14. A pull rod 15 is bolted to the outer side of the slider 9, and the other end of the pull rod 15 passes through the fixing seat 6 and is bolted to a pull ring 16. The connecting block 12 can enter the slot 14 by pulling the pull rod 15, and then the pull rod 15 is released, so that the pull rod 15 is pushed by the elastic force of the second spring 8 itself, so that the slider 9 can push the locking rod 10 to move into the slot 14, so that the locking rod 10 is plugged and fixed to the slot 14.

[0027] An extension groove 17 is provided at the rear of the inner cavity of the fixing seat 6, and a linkage gear 18 is rotatably connected to the center of the back side of the inner cavity of the extension groove 17 through a bearing. A gear rod 19 is bolted to the back side of the slider 9, and the inner side of the gear rod 19 is meshed with the surface of the linkage gear 18. The linkage gear 18 rotates in the extension groove 17 through the movement of the gear rod 19. When the linkage gear 18 rotates, it drives the gear rod 19 on the other side to move horizontally.

[0028] Mounting bars 20 are bolted on both sides of the mounting frame 2. A rotating rod 21 is rotatably connected to the inner side of the mounting bar 20 through a bearing. A torsion spring 22 is bolted to the middle of the rotating rod 21. Connecting rings 23 are bolted to the front and rear of the surface of the rotating rod 21. The torsion elastic force of the torsion spring 22 allows the rotating rod 21 on the inner side of the mounting bar 20 to be reset after rotation.

[0029] A folding support rod 24 is bolted to the bottom of the connecting ring 23, and a pulley 25 is rotatably connected to the bottom of the folding support rod 24 through a bearing. A buffer sleeve 26 is fixedly sleeved on the surface of the lower part of the concave rod 5. The folding support rod 24 serves as the first supporting structure after the aircraft lands, and cooperates with the pulley 25 and the torsion spring 22 to provide preliminary buffering and support for the aircraft. The body of the buffer sleeve 26 is made of rubber material, which not only provides a buffering effect, but also improves the anti-slip effect of the concave rod 5 after contacting the ground.

[0030] A positioning ring 27 is bolted to the middle of the inner cavity of the rectangular groove 11, and a positioning block 28 is bolted to the back of the connecting block 12. The inner side of the positioning ring 27 is slidably plugged into the surface of the positioning block 28. The positioning ring 27 and the positioning block 28 can effectively improve the plug-in accuracy of the connecting block 12.

[0031] An expansion power source 29 is bolted to the top of the aircraft body 1 , and the flight endurance of the aircraft can be effectively improved by the expansion power source 29 .

[0032] Refer to the instruction manual Figure 1-4Working principle: By installing components such as the frame 2, the sleeve 3, the first spring 4, and the concave rod 5, the quadcopter can be effectively buffered in multiple layers. When the aircraft lands, the folding support rod 24 and the pulley 25 at its bottom will first contact the ground. When the aircraft lands at a high speed, the folding support rod 24 will move to both sides through the pulley 25 and squeeze the torsion spring 22 for a buffer. When the folding support rod 24 is expanded to the maximum range on both sides, the concave rod 5 contacts the ground again and, with the assistance of the first spring 4, the aircraft is buffered for a second time, thereby avoiding strong hard contact between the aircraft and the camera assembly below it and the ground, thereby improving the landing stability and service life of the aircraft. The mounting groove 7, the second spring 8, the slider 9, the locking rod 10 and other components can quickly install or remove the camera assembly from the aircraft. When installing the camera assembly, it is only necessary to pull the pull rod 15 through the pull ring 16, so that the pull rod 15 drives the slider 9 to move to both sides and squeeze the second spring 8. At the same time, the other side of the slider 9 is driven to move outward through the gear rod 19 and the linkage gear 18, so that the locking rod 10 moves toward the inside of the mounting groove 7, and then the connecting block 12 is inserted into the rectangular groove 11. Finally, the pull ring 16 is released, so that the second spring 8 pushes the slider 9 to move inward through its own elastic force, and the locking rod 10 is reinserted into the slots 14 on both sides of the connecting block 12 to complete the fixation, thereby effectively improving the efficiency of disassembly and assembly of the camera assembly on the aircraft.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mini quadcopter, comprising an aircraft body (1), characterized in that: The bottom of the aircraft body (1) is bolted with a mounting frame (2), the four corners of the bottom of the mounting frame (2) are bolted with sleeves (3), the top of the inner cavity of the sleeve (3) is bolted with a first spring (4), the inner side of the inner cavity of the sleeve (3) is slidably connected with a concave rod (5), and the two ends of the top of the concave rod (5) are bolted to the bottom of the first spring (4), the back of the mounting frame (2) is bolted with a fixing seat (6), and both sides of the inner cavity of the fixing seat (6) are provided with mounting holes. A second spring (8) is bolted to the inner side of the mounting groove (7), a slider (9) is slidably connected to the inner side of the mounting groove (7), and the outer side of the slider (9) is bolted to the other end of the second spring (8), a locking rod (10) is bolted to the inner side of the slider (9), a rectangular groove (11) is provided in the middle of the inner cavity of the fixing seat (6), a connecting block (12) is inserted into the inner side of the rectangular groove (11), and a camera (13) is bolted to the front side of the connecting block (12).

2. A mini quadcopter according to claim 1, characterized in that: Slots (14) are provided on both sides of the connecting block (12), and the surface of the locking rod (10) passes through the rectangular groove (11) and is slidably plugged into the inner side of the slot (14). A pull rod (15) is bolted to the outer side of the slider (9), and the other end of the pull rod (15) passes through the fixing seat (6) and is bolted to a pull ring (16).

3. A mini quadcopter according to claim 1, characterized in that: An extension groove (17) is provided at the rear of the inner cavity of the fixing seat (6); a linkage gear (18) is rotatably connected to the center of the back of the inner cavity of the extension groove (17) via a bearing; a gear rod (19) is bolted to the back of the sliding block (9), and the inner side of the gear rod (19) meshes with the surface of the linkage gear (18).

4. The mini quadcopter according to claim 1, characterized in that: Both sides of the installation frame (2) are bolted with installation strips (20), the inner side of the installation strip (20) is rotatably connected to a rotating rod (21) via a bearing, a torsion spring (22) is bolted to the middle of the rotating rod (21), and connecting rings (23) are bolted to the front and rear of the surface of the rotating rod (21).

5. A mini quadcopter according to claim 4, characterized in that: A folding support rod (24) is bolted to the bottom of the connecting ring (23), a pulley (25) is rotatably connected to the bottom of the folding support rod (24) via a bearing, and a buffer sleeve (26) is fixedly sleeved on the surface of the lower part of the concave rod (5).

6. The mini quadcopter according to claim 1, characterized in that: A positioning ring (27) is bolted to the middle of the inner cavity of the rectangular groove (11), a positioning block (28) is bolted to the back of the connecting block (12), and the inner side of the positioning ring (27) is slidably plugged into the surface of the positioning block (28).

7. The mini quadcopter according to claim 1, characterized in that: An expansion power source (29) is bolted to the top of the aircraft body (1).

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