Quick dismounting device for unmanned aerial vehicle paddle

Abstract

The utility model discloses an unmanned aerial vehicle paddle quick release device which comprises a rotating motor, the output end of the rotating motor is fixedly connected with a motor shaft core, a base is installed on the upper end face of the rotating motor, a spring blocking piece is installed in the middle of the upper end face of the base, and the motor shaft core penetrates through the spring blocking piece. The outer surface of the motor shaft core is sleeved with a tower-shaped spring, three inserting grooves are evenly formed in the outer side of a spring blocking piece, an arc-shaped groove is formed in one side of each inserting groove, a sliding groove is formed in the lower portion of the inner wall of each arc-shaped groove, an inserting device is movably installed on the inner side of each inserting groove through a limiting mechanism, and each inserting device comprises an L-shaped plate and an inserting plate. Limiting grooves are formed in the sides, opposite to each other, of the outer surfaces of the three inserting plates. The paddle can be mounted in advance, the paddle seat and the base are quickly assembled during use, mounting is stable, takeoff preparation of the unmanned aerial vehicle is quicker, and task execution efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles (UAVs), in particular to a quick-detachable device for UAV blades. Background Art

[0002] Drones are unmanned aircraft controlled by radio remote control and self-contained programmable controls, or operated fully or intermittently autonomously by an onboard computer. The propellers on drones, as the power actuators of the drone system, are bulky and prone to wear. During transportation, the propellers take up too much space and are prone to collision and wear, resulting in high transportation costs. Therefore, the propellers need to be disassembled and stored separately. When the drone is needed, the propellers need to be reassembled, requiring users to frequently disassemble and reassemble the propellers.

[0003] At present, the common connection method between the rotor and blades of drones is: the middle of the blade is passed through the screw, and multiple nuts are passed through the blade, and the nuts are tightened on the rotor to make the rotor drive the blade to rotate.

[0004] However, since most current drones are multi-rotor structures and are equipped with multiple blades, the nut connection method makes the disassembly and assembly process of the drone more cumbersome, requiring a large number of nuts, which is time-consuming; therefore, it does not meet the existing needs. In this regard, we propose a quick-disassembly device for drone blades. Utility Model Content

[0005] The purpose of the present utility model is to provide a quick-release device for drone blades, so as to solve the problem raised in the above background technology that most current drones are multi-rotor structures, which are equipped with multiple blades. Therefore, the process of disassembling and assembling the drone is relatively cumbersome due to the connection through nuts, and a large number of nuts are required, which is time-consuming.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a quick-release device for drone blades, comprising a rotating motor, the output end of the rotating motor is fixedly connected to the motor shaft core, the upper end surface of the rotating motor is installed with a base, the middle of the upper end surface of the base is installed with a spring block, the motor shaft core passes through the spring block, the outer surface of the motor shaft core is sleeved with a tower-shaped spring, the outer side of the spring block is evenly provided with three slots, one side of the slot is provided with an arc groove, a sliding groove is provided below the inner wall of the arc groove, the inner side of the slot is movably installed with a plug-in device through a limiting mechanism, the plug-in device comprises an L-shaped plate and a plug-in plate, the three outer surfaces of the plug-in plates are provided with limiting grooves on the opposite sides, one side of the outer surface of the plug-in plate is provided with an inclined surface, and the three outer surfaces of the L-shaped plates are fixedly installed on the opposite sides of the outer surfaces, the upper end surface of the propeller seat is installed with a propeller seat shaft core, the outer surface of the propeller seat shaft core is sleeved with a threaded sleeve, and the outer surface of the threaded sleeve is evenly installed with three blades.

[0007] Preferably, the lower end surface of the tower-shaped spring is fixedly connected to the upper end surface of the spring stopper, the lower end surface of the propeller seat shaft core is provided with a circular hole, and the motor shaft core can be stuck into the inner side of the circular hole.

[0008] Preferably, the propeller seat shaft core is connected to the threaded sleeve through threads, and a nut is threadedly connected to the top of the threaded sleeve.

[0009] Preferably, the size of the inserting plate is smaller than the size of the slot, the L-shaped plate can rotate inside the arc-shaped slot, and the inserting plate can be stuck into the inner side of the sliding slot.

[0010] Preferably, the limiting mechanism includes an insertion rod, the insertion rod is installed on the outer surface of the base through a through hole, and the outer surface of the insertion rod is sleeved with a spring.

[0011] Preferably, one end of the insertion rod is fixedly connected to a trapezoidal block, and the trapezoidal block can be snapped into the inner side of the limiting groove.

[0012] Preferably, a limiting ring is sleeved on the outer surface of the insertion rod, one end of the spring is fixedly connected to the outer surface of the limiting ring, and the other end of the spring is fixedly connected to the inner wall of the through hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with a plug-in device, an arc-shaped groove, a slot and a slide groove. By inserting the three plug-ins into the three slots respectively, the paddle seat is rotated, and the L-shaped plate rotates on the inner side of the arc-shaped groove, and the plug-in plate is stuck in the inner side of the slide groove. At the same time, the tower-shaped spring can give the paddle seat an upward force to fix the paddle seat. At the same time, by providing a limiting mechanism, an inclined surface and a limiting groove, when the paddle seat is rotated, the inclined surface of the plug-in plate contacts the outer surface of the trapezoidal block, the plug-in plate squeezes the trapezoidal block outward, and the plug-in rod extends outward of the through hole, driving the trapezoidal block to move, avoiding affecting the rotation of the plug-in plate. When the plug-in plate moves to the end of the slide groove, the outer surface of the plug-in plate fits with the inner wall of the slide groove, and the trapezoidal block drives the trapezoidal block to be stuck in the inner side of the limiting groove under the action of the spring, thereby rotating the plug-in plate. The limit can further fix the propeller seat, improve the stability of the installation, and prevent the plug-in device from being separated from the slot due to shaking due to airflow during flight, which affects the execution of the task. When the propeller seat needs to be disassembled, the three plug rods are pulled outward at the same time. The movement of the plug rod drives the trapezoidal block to move, driving the trapezoidal block to leave the inner side of the limit slot, and releasing the limit on the plug plate. At this time, the propeller seat can be rotated in the opposite direction to drive the plug-in device to rotate in the opposite direction. The plug plate rotates in the opposite direction on the inner side of the slide slot, and the L-shaped plate rotates in the opposite direction on the inner side of the arc slot, so that the plug-in device can be removed from the inner side of the slot. The utility model can install the blades in advance, and the propeller seat and the base can be quickly assembled when in use, and the installation is stable, which makes the UAV's take-off preparation faster and improves the efficiency of mission execution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model with the paddle seat removed;

[0017] Figure 3 This is a schematic diagram of the partial structure of the chute of the utility model;

[0018] Figure 4 It is a top sectional view of the base of the utility model.

[0019] In the figure: 1. rotating motor; 2. base; 3. blade; 4. arc-shaped groove; 5. propeller seat shaft core; 6. threaded sleeve; 7. propeller seat; 8. limiting mechanism; 801. plug-in rod; 802. spring; 803. through hole; 804. trapezoidal block; 9. tower-shaped spring; 10. spring stopper; 11. plug-in device; 1101. L-shaped plate; 1102. plug-in plate; 12. slot; 13. slide groove; 14. limiting groove; 15. inclined surface; 16. motor shaft core. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] The rotating motor 1 (model YEJ3-112M-4) mentioned in the present invention can be purchased from the market or obtained through private customization.

[0022] See also Figures 1 to 4 The utility model provides an embodiment: a quick-release device for a drone blade, comprising a rotating motor 1, the output end of the rotating motor 1 is fixedly connected to a motor shaft core 16, the upper end surface of the rotating motor 1 is mounted with a base 2, a spring stopper 10 is mounted in the middle of the upper end surface of the base 2, the motor shaft core 16 passes through the spring stopper 10, the outer surface of the motor shaft core 16 is sleeved with a tower-shaped spring 9, three slots 12 are evenly arranged on the outer side of the spring stopper 10, one side of each slot 12 is provided with an arc groove 4, and a slide groove is provided below the inner wall of the arc groove 4 13. A plug-in device 11 is movably installed on the inner side of the slot 12 through a limiting mechanism 8. The plug-in device 11 includes an L-shaped plate 1101 and an inserting plate 1102. A limiting groove 14 is provided on the opposite side of the outer surfaces of the three inserting plates 1102. A slope 15 is provided on one side of the outer surface of the inserting plates 1102. A paddle seat 7 is fixedly installed on the opposite side of the outer surfaces of the three L-shaped plates 1101. The upper end surface of the paddle seat 7 is installed with a paddle seat shaft core 5. The outer surface of the paddle seat shaft core 5 is provided with a threaded sleeve 6, and the outer surface of the threaded sleeve 6 is evenly installed with three blades 3.

[0023] The lower end face of the tower-shaped spring 9 is fixedly connected to the upper end face of the spring stopper 10. The lower end face of the propeller seat shaft core 5 is provided with a circular hole, and the motor shaft core 16 can be stuck into the inner side of the circular hole, thereby improving the installation stability of the tower-shaped spring 9 and the spring stopper 10.

[0024] The propeller seat shaft core 5 is connected to the threaded sleeve 6 through threads, and a nut is connected to the top of the threaded sleeve 6 through threads to improve the stability of the installation of the threaded sleeve 6.

[0025] The size of the inserting plate 1102 is smaller than that of the slot 12 , the L-shaped plate 1101 can rotate on the inner side of the arc groove 4 , the inserting plate 1102 can be stuck into the inner side of the slide groove 13 , and the inserting plate 1102 can be inserted into the inner side of the slot 12 .

[0026] The limiting mechanism 8 includes an insert rod 801, which is installed on the outer surface of the base 2 through a through hole 803. A spring 802 is sleeved on the outer surface of the insert rod 801. One end of the insert rod 801 is fixedly connected to a trapezoidal block 804, which can be inserted into the inner side of the limiting groove 14. The trapezoidal block 804 can limit the insert plate 1102.

[0027] A limiting ring is sleeved on the outer surface of the insertion rod 801, one end of the spring 802 is fixedly connected to the outer surface of the limiting ring, and the other end of the spring 802 is fixedly connected to the inner wall of the through hole 803, thereby improving the installation stability of the insertion rod 801.

[0028] When the quick-release device of the drone blade is in use, it is provided with a plug-in device 11, an arc groove 4, a slot 12, and a slide groove 13. The three plug-ins 1102 can be respectively inserted into the three slots 12, the propeller seat 7 is rotated, the L-shaped plate 1101 rotates on the inner side of the arc groove 4, and the plug-in plate 1102 is stuck in the inner side of the slide groove 13. At the same time, the tower spring 9 can give the propeller seat 7 an upward force to fix the propeller seat 7. At the same time, by providing a limiting mechanism 8, an inclined surface 15 and a limiting groove 14. When the paddle seat 7 is rotated, the inclined surface 15 of the insert plate 1102 contacts the outer surface of the trapezoidal block 804. The insert plate 1102 squeezes the trapezoidal block 804 outward, and the insert rod 801 extends outward from the through hole 803, driving the trapezoidal block 804 to move, avoiding affecting the rotation of the insert plate 1102. When the insert plate 1102 moves to the end of the slide groove 13, the outer surface of the insert plate 1102 fits with the inner wall of the slide groove 13. Under the action of the spring 802, the trapezoidal block 804 When the propeller seat 7 is disassembled, the three rods 801 are pulled outward at the same time. The rods 801 move and drive the trapezoidal block 804 to move, driving the trapezoidal block 804 to leave the inner side of the limit groove 14 and releasing the limit of the plug plate 1102. At this time, the propeller seat 7 can be rotated in the opposite direction, driving the plug device 11 to rotate in the opposite direction, and the plug plate 1102 rotates in the opposite direction on the inner side of the slide groove 13. The L-shaped plate 1101 rotates in the opposite direction on the inner side of the arc groove 4, and the plug device 11 can be removed from the inner side of the slot 12. The utility model can install the blades 3 in advance. When in use, the propeller seat 7 and the base 2 are quickly assembled and the installation is stable, making the take-off preparation of the drone faster and improving the efficiency of mission execution.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A quick-release device for a drone blade, comprising a rotating motor (1), characterized in that: The output end of the rotating motor (1) is fixedly connected to the motor shaft core (16), the upper end surface of the rotating motor (1) is installed with a base (2), the middle of the upper end surface of the base (2) is installed with a spring stopper (10), the motor shaft core (16) passes through the spring stopper (10), the outer surface of the motor shaft core (16) is sleeved with a tower spring (9), the outer side of the spring stopper (10) is evenly provided with three slots (12), one side of each slot (12) is provided with an arc groove (4), the lower part of the inner wall of the arc groove (4) is provided with a slide groove (13), the inner side of the slot (12) is limited by a limiter The structure (8) is movably provided with a plug-in device (11), the plug-in device (11) comprising an L-shaped plate (1101) and a plug-in plate (1102), the three plug-in plates (1102) having opposite outer surfaces provided with a limiting groove (14), one side of the outer surface of the plug-in plate (1102) being provided with an inclined surface (15), a paddle seat (7) being fixedly provided on the opposite outer surface of the three L-shaped plates (1101), the upper end surface of the paddle seat (7) being provided with a paddle seat shaft core (5), the outer surface of the paddle seat shaft core (5) being provided with a threaded sleeve (6), and the outer surface of the threaded sleeve (6) being evenly provided with three paddle blades (3).

2. The quick-release device for drone blades according to claim 1, characterized in that: The lower end surface of the tower-shaped spring (9) is fixedly connected to the upper end surface of the spring stopper (10); the lower end surface of the propeller seat shaft core (5) is provided with a circular hole, and the motor shaft core (16) can be inserted into the inner side of the circular hole.

3. The quick-release device for drone blades according to claim 1, characterized in that: The paddle seat shaft core (5) is connected to the threaded sleeve (6) through threads, and a nut is connected to the top of the threaded sleeve (6) through threads.

4. The quick-release device for drone blades according to claim 1, characterized in that: The size of the inserting plate (1102) is smaller than the size of the slot (12), the L-shaped plate (1101) can rotate inside the arc-shaped slot (4), and the inserting plate (1102) can be inserted into the inner side of the sliding slot (13).

5. The quick-release device for drone blades according to claim 1, characterized in that: The limiting mechanism (8) comprises an insert rod (801), the insert rod (801) is mounted on the outer surface of the base (2) through a through hole (803), and a spring (802) is sleeved on the outer surface of the insert rod (801).

6. The quick-release device for drone blades according to claim 5, characterized in that: One end of the insertion rod (801) is fixedly connected to a trapezoidal block (804), and the trapezoidal block (804) can be inserted into the inner side of the limiting groove (14).

7. The quick-release device for drone blades according to claim 5, characterized in that: The outer surface of the insertion rod (801) is sleeved with a limiting ring, one end of the spring (802) is fixedly connected to the outer surface of the limiting ring, and the other end of the spring (802) is fixedly connected to the inner wall of the through hole (803).

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