Load-carrying multi-rotor unmanned aerial vehicle

Abstract

The utility model discloses a loading type multi-rotor unmanned aerial vehicle, which belongs to the technical field of unmanned aerial vehicles and comprises a multi-rotor body assembly, a dry powder box is arranged below the multi-rotor body assembly, two connecting rods are mounted between the multi-rotor body assembly and the dry powder box, and a stirring mechanism is mounted at the position close to the center of the dry powder box. A feeding mechanism is installed on one side of the dry powder box, a powder discharging assembly is arranged below the dry powder box, a plurality of supporting mechanisms are arranged on the outer side of the powder discharging assembly, an expansion filtering device is installed on the outer side of the dry powder box, and a stable supporting device is installed below the supporting mechanisms. According to the unmanned aerial vehicle, the capacity expansion filtering device is arranged, so that the capacity of the unmanned aerial vehicle for dry powder can be expanded through cooperation of the motor, the moving box and other structures when needed, the working requirements under different conditions are better met, and the unmanned aerial vehicle can prevent caked dry powder from entering the powder discharging assembly through filter cloth; and the working capability of the unmanned aerial vehicle is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and in particular relates to a load-bearing multi-rotor unmanned aerial vehicle. Background Art

[0002] A drone is an unmanned aircraft controlled by a radio remote control device and a self-contained program control device, or operated completely or intermittently autonomously by an onboard computer.

[0003] Chinese patent application No. 202220305401.8 discloses an electric large-load multi-rotor police drone, including a drone body, with multiple groups of connecting seats distributed on the left and right sides of the drone body, each of which is equipped with a rotor, a dry powder box is fixed to the lower end of the drone body through a connecting rod, a stirring mechanism is installed in the dry powder box, a supporting mechanism is installed around the lower end of the dry powder box, a feeding mechanism is also installed on the right side of the dry powder box, a powder discharge port is also opened at the lower end of the dry powder box, a powder discharge pipe is installed at the powder discharge port, a powder discharge pump is also installed on the powder discharge pipe, and a nozzle is installed at the lower end of the powder discharge pipe. The utility model has a simple structure, is convenient for rescue in a small area, and can achieve a shock absorption effect during landing, which can bring convenience to the field of police drone technology.

[0004] 1. The above-mentioned public patent has the problem that the UAV's capacity for dry powder cannot be expanded when needed, and some agglomerated dry powder may avoid the stirring blades and enter the powder discharge port, thereby reducing the working ability of the UAV; 2. The above-mentioned public patent has the problem that the UAV is prone to sliding and tipping when the UAV lands on a tilted ground, thereby reducing the practicality of the UAV. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a load-carrying multi-rotor UAV, which has the characteristics of high working capacity and strong practicality.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a load-bearing multi-rotor UAV, comprising a multi-rotor body assembly, a dry powder box is arranged below the multi-rotor body assembly, two connecting rods are installed between the multi-rotor body assembly and the dry powder box, a stirring mechanism is installed at the center of the dry powder box, a feeding mechanism is installed on one side of the dry powder box, a powder discharge assembly is arranged below the dry powder box, a plurality of supporting mechanisms are arranged on the outside of the powder discharge assembly, a capacity expansion and filtering device is installed on the outside of the dry powder box, and a stabilizing support device is installed below the plurality of supporting mechanisms.

[0007] Preferably, the expansion filtering device includes a fixed plate, a lifting plate, a screw, a filtering assembly, a movable box and a motor; a fixed plate is installed on the side of the dry powder box away from the feeding mechanism, a motor is installed above the fixed plate, a screw is installed below the motor and at a position inside the fixed plate, a lifting plate is installed through a thread on the outside of the screw and below the fixed plate, a movable box is installed between the lifting plate and the powder discharge assembly and multiple supporting mechanisms and at a position outside the dry powder box, and a filtering assembly is installed below the dry powder box and at a position inside the movable box.

[0008] Preferably, the capacity expansion and filtering device further comprises a limit plate, and the limit plate is installed below the screw rod.

[0009] Preferably, the filter assembly includes a vibrator and a filter cloth, the filter cloth is installed below the dry powder box and inside the moving box, and two vibrators are installed below the filter cloth and inside the moving box.

[0010] Preferably, the stable support device includes a base plate, a knob, a bottom box, a screw, a movable plate and an insert cone, the base plate is installed below the support mechanism, bottom boxes are installed below multiple base plates through screws, a screw is installed on the top of the bottom box through threads, a movable plate is installed below the screw and at a position inside the bottom box through a bearing, multiple insert cones are installed below the movable plate, and a knob is installed above the screw.

[0011] Preferably, the shape and size of the inner cross section of the bottom box are the same as the shape and size of the outer cross section of the movable plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a capacity expansion filter device, so that the UAV can expand the UAV's capacity for dry powder when needed through the cooperation of structures such as a motor and a mobile box, so as to better meet the work needs in different situations, and the UAV can prevent agglomerated dry powder from entering the powder discharge component through the filter cloth, thereby improving the working capacity of the UAV.

[0014] 2. The utility model provides a stable support device so that the UAV can fix itself in the landing position through various plug cones when needed, thereby preventing the UAV from sliding and tipping over when landing on a tilted ground, thereby improving the practicality of the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a three-dimensional cross-sectional view of the utility model;

[0017] Figure 3 It is a three-dimensional cross-sectional view of the capacity expansion filtering device of the utility model;

[0018] Figure 4 It is a three-dimensional cross-sectional view of the stable support device of the utility model.

[0019] In the figure: 1. Multi-rotor body assembly; 2. Dry powder box; 3. Connecting rod; 4. Expansion filter device; 41. Fixed plate; 42. Lifting plate; 43. Limiting plate; 44. Screw; 45. Filter assembly; 451. Vibrator; 452. Filter cloth; 46. Moving box; 47. Motor; 5. Support mechanism; 6. Powder discharge assembly; 7. Stable support device; 71. Bottom plate; 72. Knob; 73. Bottom box; 74. Screw; 75. Moving plate; 76. Insert cone; 8. Stirring mechanism; 9. Feeding mechanism. DETAILED DESCRIPTION

[0020] 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.

[0021] Example 1

[0022] See also Figure 1-4 The utility model provides the following technical solutions: a load-bearing multi-rotor UAV, comprising a multi-rotor body assembly 1, a dry powder box 2 is arranged below the multi-rotor body assembly 1, two connecting rods 3 are installed between the multi-rotor body assembly 1 and the dry powder box 2, a stirring mechanism 8 is installed at the central position of the dry powder box 2, a feeding mechanism 9 is installed on one side of the dry powder box 2, a powder discharge assembly 6 is arranged below the dry powder box 2, a plurality of supporting mechanisms 5 are arranged on the outside of the powder discharge assembly 6, a capacity expansion filter device 4 is installed on the outside of the dry powder box 2, and a stabilizing support device 7 is installed below the plurality of supporting mechanisms 5.

[0023] Specifically, the expansion filtering device 4 includes a fixed plate 41, a lifting plate 42, a screw 44, a filter assembly 45, a movable box 46 and a motor 47. The fixed plate 41 is installed on the side of the dry powder box 2 away from the feeding mechanism 9, and the motor 47 is installed above the fixed plate 41. The screw 44 is installed below the motor 47 and at a position located on the inner side of the fixed plate 41. The lifting plate 42 is installed on the outer side of the screw 44 and below the fixed plate 41 through a thread. The movable box 46 is installed between the lifting plate 42 and the powder discharge assembly 6 and the multiple support mechanisms 5 and at a position outside the dry powder box 2. The filter assembly 45 is installed below the dry powder box 2 and at a position located on the inner side of the movable box 46.

[0024] By adopting the above technical solution, the drone can expand the dry powder capacity of the drone when needed through the cooperation of structures such as the motor 47 and the mobile box 46, so as to better meet the work needs in different situations.

[0025] Specifically, the capacity expansion and filtering device 4 further includes a limit plate 43 , and a limit plate 43 is installed below the screw rod 44 .

[0026] By adopting the above technical solution, the drone can limit the positions of structures such as the lifting plate 42 and the moving box 46 by the limiting plate 43, thereby preventing the lifting plate 42 from detaching from the screw rod 44 and ensuring normal operation.

[0027] Specifically, the filter assembly 45 includes a vibrator 451 and a filter cloth 452 . The filter cloth 452 is installed below the dry powder box 2 and inside the moving box 46 . Two vibrators 451 are installed below the filter cloth 452 and inside the moving box 46 .

[0028] By adopting the above technical solution, the drone can prevent agglomerated dry powder from entering the powder discharge component 6 through the filter cloth 452, thereby ensuring the normal operation, and the vibration generated by the two vibrators 451 can prevent the filter cloth 452 from being blocked.

[0029] When this embodiment is used, when it is necessary to use a load-bearing multi-rotor drone, the motor 47 on the fixed plate 41 in the capacity expansion and filtering device 4 is started, thereby driving the screw rod 44 to rotate. The screw rod 44 is threadedly connected to the lifting plate 42, and the movable box 46 on the lifting plate 42 is close to the dry powder box 2, so the screw rod 44 drives the lifting plate 42 and the movable box 46 to move, thereby adjusting the total capacity of the dry powder box 2 and the movable box 46, and then the dry powder is added to the dry powder box 2 through the feeding mechanism 9, and the stirring mechanism 8 is started to stir the dry powder. After the dry powder is filtered by the filter cloth 452 in the filtering assembly 45, it falls to the inner bottom of the movable box 46. The staff can start the two vibrators 451 to drive the filter cloth 452 to vibrate, thereby preventing the filter cloth 452 from being blocked, and the multi-rotor body assembly 1 is manipulated to drive other structures to fly to the specified position, and the powder discharge assembly 6 is manipulated to spray the dry powder, so that it can be used. The connecting rod 3 plays a connecting role, and the limiting plate 43 plays a role in limiting the movable box 46.

[0030] Example 2

[0031] The present embodiment is different from the embodiment 1 in that: the stable support device 7 includes a base plate 71, a knob 72, a base box 73, a screw 74, a movable plate 75 and an insert cone 76; the base plate 71 is installed below the support mechanism 5; base boxes 73 are installed below a plurality of base plates 71 by screws; a screw 74 is installed on the top of the base box 73 by threads; a movable plate 75 is installed below the screw 74 and at a position inside the base box 73 by a bearing; a plurality of insert cones 76 are installed below the movable plate 75; and the knob 72 is installed above the screw 74.

[0032] By adopting the above technical solution, the drone can fix itself at the landing position through each plug cone 76 when needed, thereby preventing the drone from sliding and tipping over when landing on a tilted ground.

[0033] Specifically, the shape and size of the inner cross section of the bottom box 73 are the same as the shape and size of the outer cross section of the moving plate 75 .

[0034] By adopting the above technical solution, it is ensured that the inner side of the bottom box 73 and the outer side of the movable plate 75 can maintain close contact with each other, thereby preventing the movable plate 75 from rotating and deviating during the movement process, thereby ensuring normal operation.

[0035] When the present embodiment is used, when the UAV needs to land on a tilted ground, the bottom plate 71 in the stabilizing support device 7 under each support mechanism 5 can be connected to the bottom box 73 by screws before work, and then the knob 72 can be turned to drive the screw rod 74 to rotate. The screw rod 74 is threadedly connected to the bottom box 73, and the screw rod 74 is bearing-connected to the movable plate 75. The outer side of the movable plate 75 is in close contact with the bottom box 73, so the screw rod 74 drives the movable plate 75 to descend, and then drives each cone 76 to leave the bottom box 73. When the UAV lands, each cone 76 will be inserted into the ground, thereby preventing the UAV from sliding and tipping over when landing on a tilted ground.

[0036] The structure and principle of the multi-rotor body component 1 composed of the drone body, the connecting seat and the rotor, the connecting rod 3, the supporting mechanism 5, the powder discharge component 6 composed of the powder discharge port, the powder discharge pump and the nozzle, the stirring mechanism 8, and the feeding mechanism 9 in the utility model have been disclosed in the electric large-load multi-rotor police drone disclosed in Chinese patent application number 202220305401.8. Its working principle is that when in use, first unscrew the cover, then add dry powder to the feeding tank, and the dry powder in the feeding tank is introduced into the dry powder box through the feeding pipe, thereby completing the addition of dry powder. Finally, screw on the cover, then turn on the stirring motor to drive the active gear to rotate, and then the driven gear meshing with it drives the stirring shaft to rotate, and the stirring blades distributed on the stirring shaft disperse the dry powder to prevent it from accumulating and agglomerating, affecting the spraying. When the UAV flies to the designated position, turn on the powder discharge pump, extract the dry powder in the dry powder box, and spray it through the nozzle. When the UAV lands, the support rod slides upward and is inserted into the support tube. At this time, the first damping spring and the second damping spring are both compressed to offset part of the impact force, thereby achieving the purpose of buffering and shock reduction.

[0037] The structure and principle of the vibrator 451 in the utility model have been disclosed in an easy-to-clean concrete mixing device disclosed in Chinese patent application number 201821054815.8. Its working principle is composed of components such as springs, mass blocks, and motors. When the spring or mass block is subjected to external force from the motor, elastic deformation or displacement will occur, thereby generating vibration.

[0038] The working principle and use process of the utility model are as follows: when it is necessary to use a load-bearing multi-rotor drone, the motor 47 on the fixed plate 41 in the capacity expansion filter device 4 is started, thereby driving the screw rod 44 to rotate. The screw rod 44 is threadedly connected to the lifting plate 42, and the movable box 46 on the lifting plate 42 is close to the dry powder box 2, so the screw rod 44 drives the lifting plate 42 and the movable box 46 to move, thereby adjusting the total capacity of the dry powder box 2 and the movable box 46, and then the dry powder is added to the dry powder box 2 through the feeding mechanism 9, and the stirring mechanism 8 is started to stir the dry powder. After being filtered by the filter cloth 452 in the filter component 45, the dry powder falls to the inner bottom of the movable box 46. The staff can start the two vibrators 451 to drive the filter cloth 452 to vibrate, thereby preventing the filter cloth 452 from being blocked, and manipulate the multi-rotor body component 1 to drive other structures to fly. When the drone needs to land on a tilted ground, the bottom plate 71 in the stabilizing support device 7 under each supporting mechanism 5 can be connected to the bottom box 73 by screws before work, and then the knob 72 is turned to drive the screw rod 74 to rotate. The screw rod 74 is threadedly connected to the bottom box 73, and the screw rod 74 is connected to the bearing of the movable plate 75. The outer side of the movable plate 75 is close to the bottom box 73, so the screw rod 74 drives the movable plate 75 to descend, and then drives each cone 76 to leave the bottom box 73. When the drone lands, each cone 76 will be inserted into the ground, thereby preventing the drone from sliding and tipping when landing on a tilted ground.

[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A load-carrying multi-rotor UAV, comprising a multi-rotor body assembly, characterized in that: A dry powder box is arranged below the multi-rotor body assembly, two connecting rods are installed between the multi-rotor body assembly and the dry powder box, a stirring mechanism is installed at the central position of the dry powder box, a feeding mechanism is installed on one side of the dry powder box, a powder discharge assembly is arranged below the dry powder box, a plurality of supporting mechanisms are arranged outside the powder discharge assembly, a capacity expansion and filtering device is installed outside the dry powder box, and a stabilizing supporting device is installed below the plurality of supporting mechanisms; The capacity expansion filtering device includes a fixed plate, a lifting plate, a screw, a filtering assembly, a movable box and a motor. A fixed plate is installed on the side of the dry powder box away from the feeding mechanism, a motor is installed above the fixed plate, a screw is installed below the motor and at a position inside the fixed plate, a lifting plate is installed via a thread on the outside of the screw and below the fixed plate, a movable box is installed between the lifting plate and the powder discharge assembly and a plurality of supporting mechanisms and at a position outside the dry powder box, and a filtering assembly is installed below the dry powder box and at a position inside the movable box.

2. The load-carrying multi-rotor UAV according to claim 1, characterized in that: The capacity expansion and filtering device further comprises a limit plate, and the limit plate is installed below the screw rod.

3. The load-carrying multi-rotor UAV according to claim 1, characterized in that: The filter assembly comprises a vibrator and a filter cloth. The filter cloth is installed below the dry powder box and inside the moving box. Two vibrators are installed below the filter cloth and inside the moving box.

4. The load-carrying multi-rotor UAV according to claim 1, characterized in that: The stable support device includes a base plate, a knob, a bottom box, a screw, a movable plate and an insert cone. The base plate is installed below the support mechanism, and bottom boxes are installed below multiple base plates through screws. The screw is installed on the top of the bottom box through threads. A movable plate is installed below the screw and at a position inside the bottom box through a bearing, and multiple insert cones are installed below the movable plate. The knob is installed above the screw.

5. The load-carrying multi-rotor UAV according to claim 4, characterized in that: The shape and size of the inner cross section of the bottom box are the same as the shape and size of the outer cross section of the movable plate.

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