A multi-purpose unmanned helicopter

Abstract

The application discloses a multi-purpose unmanned helicopter and belongs to the technical field of unmanned planes, which comprises a fuselage, a wing arranged on the top of the fuselage, and a snow removing mechanism arranged on the fuselage, wherein the snow removing mechanism comprises an extension assembly, the extension assembly comprises a fixed rod and an extension rod, the fixed rod is arranged at the bottom of the fuselage, and the extension rod is arranged on the fixed rod in a vertical extension mode along the fuselage; a snow removing component is arranged on the extension rod and comprises an abutting head capable of abutting a greenhouse film; a vibration component comprises a cam and a driving source, the driving source drives the cam to rotate, and in the process that the abutting head abuts the greenhouse film, the extension rod is first retracted into the fixed rod, and then the extension rod continuously abuts the profile edge of the cam, the cam rotates and drives the extension rod to reciprocate, and the application can effectively improve the snow removing efficiency of the agricultural greenhouse after the snow accumulation through the unmanned plane for the snow removing operation and the snow removing mechanism.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to a multi-purpose unmanned helicopter. Background Technology

[0002] Due to the large-scale agricultural planting in northern my country, plastic greenhouses have become an important guarantee for winter vegetable production. However, snowfall is inevitable in northern winters, and snow accumulates above the greenhouses. Especially after multiple snowfalls, the snow on the greenhouses becomes thicker and thicker, posing a serious threat to the safety of the greenhouses. On the one hand, the snow adversely affects the rigidity and strength of the greenhouse frame, making it very easy for the greenhouse to collapse and cause economic losses. On the other hand, the snow seriously affects the light transmittance and heat preservation of the greenhouse film, which is not conducive to crop growth. Therefore, timely removal of snow from greenhouses is a key link in ensuring safe agricultural production.

[0003] Currently, snow removal in greenhouses is mainly carried out by farmers using shovels, snow blowers, and other methods. However, this method is inefficient and makes snow removal on the roof difficult, often requiring farmers to climb onto the roof to carry out the snow removal work, which poses certain safety risks. Therefore, improvements are needed. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a multi-purpose unmanned helicopter that uses drones to carry out snow removal operations and further improves the snow removal efficiency of agricultural greenhouses after snow accumulation through a snow removal mechanism.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A multi-purpose unmanned helicopter includes a fuselage, with wings mounted on the top of the fuselage, and a snow removal mechanism mounted on the fuselage. The snow removal mechanism includes...

[0007] A telescopic assembly includes a fixed rod and a telescopic rod, wherein the fixed rod is located at the bottom of the machine body, and the telescopic rod is vertically telescopically mounted on the fixed rod along the machine body;

[0008] A snow removal component is mounted on the telescopic rod, and the snow removal component includes an abutment joint that can abut against the greenhouse film.

[0009] The vibration assembly includes a cam and a drive source. The drive source drives the cam to rotate. During the process of the abutment joint abutting against the greenhouse film, the telescopic rod first retracts into the fixed rod, and then the telescopic rod continuously abuts against the edge of the cam profile. The cam rotates and drives the telescopic rod to reciprocate.

[0010] Through the above technical solution, this application utilizes drones for snow removal operations on greenhouses. When the drone hovers above the greenhouse, the downwash airflow generated by its wings impacts the snow on the greenhouse, thus washing away the surface snow. The drone then descends a certain distance, and its contact point contacts the exposed bottom layer of snow on the greenhouse. During this process, the telescopic rod retracts into the fixed rod until it contacts the cam. As the cam rotates, the protruding part of the cam edge contacts the telescopic rod, causing the contact point to squeeze the greenhouse film. The smooth part of the cam edge contacts the telescopic rod, and under the elastic force of the greenhouse film itself, the telescopic rod rebounds. This cycle repeats, creating a reciprocating vibration effect at the contact point, causing the greenhouse film to shake repeatedly, loosening the bottom layer of snow. With the further cooperation of the downwash airflow, the stubborn bottom layer of snow on the greenhouse film is removed, effectively improving snow removal efficiency.

[0011] Furthermore, the snow removal mechanism also includes a jet assembly, which includes an air collection hood, an air duct, and a jet nozzle connected in sequence. The opening of the air collection hood is located below the wing, and the jet nozzle is located on the telescopic rod and arranged facing downwards from the fuselage. The downwash airflow generated by the wing enters the air collection hood and is ejected from the jet nozzle.

[0012] Through the above technical solution, the downwash airflow generated by the wing enters the air collection shroud and is ejected from under the fuselage by the jet nozzle. Due to the influence of the fuselage, the downwash airflow directly under the fuselage is obstructed, and the area at the telescopic boom is less affected by the airflow impact. The jet assembly has the function of guiding the airflow, directing the downwash airflow to a specific area and improving the snow removal efficiency in the local area.

[0013] Furthermore, the jet nozzle is located on the end face of the abutment that contacts the greenhouse film.

[0014] With the above technical solution, the area below the abutment is blocked by both the fuselage and the abutment, and the impact of the downwash airflow on this area is relatively small. Therefore, guiding the downwash airflow to this area can improve the snow removal efficiency in the local area.

[0015] Furthermore, the air nozzle is telescopically mounted on the abutment along the telescopic direction of the telescopic rod. An elastic element is provided between the air nozzle and the abutment. Under the elastic force of the elastic element, the air nozzle is located outside the abutment, and after the air nozzle abuts the shed, it can enter the air nozzle.

[0016] With the above technical solution, the air nozzle is telescopically set on the abutment joint. When the abutment joint abuts against the greenhouse film, the air nozzle first inserts into the bottom snow on the greenhouse film. During this process, the downward airflow in the air nozzle blows away the snow below the abutment joint, avoiding the abutment joint directly squeezing the snow below, which would make the originally relatively loose bottom snow compacted and difficult to remove. After the air nozzle abuts against the greenhouse film, the abutment joint moves relative to the air nozzle, and the abutment joint gradually abuts against the greenhouse film and begins to vibrate to remove snow.

[0017] Furthermore, the end face of the abutting joint that abuts against the greenhouse film is an arc shape that arches upwards towards the machine body.

[0018] Through the above technical solution, the end face shape of the abutment can protect the greenhouse film during vibration and avoid damaging the greenhouse film. On the other hand, it can gradually increase the contact area with the greenhouse film as the abutment moves downwards towards the greenhouse.

[0019] Furthermore, the snow removal assembly also includes a connector, the two ends of which are respectively connected to the telescopic rod and the abutment, and the abutment is detachably connected to the connector.

[0020] Through the above technical solution, the abutment can be detachably connected to the connector head, and different abutments can be replaced according to the actual use scenario and needs.

[0021] Furthermore, an elastic buffer is provided between the telescopic rod and the fixed rod, and the telescopic rod is subjected to resistance generated by the deformation of the elastic buffer when it moves downward.

[0022] Through the above technical solution, the elastic buffer plays a reset role after the cam pushes the abutment towards the greenhouse film, and provides a further reset force on the basis of the elastic reset force provided by the greenhouse film.

[0023] Furthermore, the driving source is a drive motor, and a fixed platform is provided on the fixed rod, with the drive motor mounted on the fixed platform.

[0024] Through the above technical solution, the fixed platform serves to fix and install the drive source, and can also provide counterweight balance for the center of gravity deviation of the drive motor.

[0025] Furthermore, the driving source is a driving blade, the driving fan blade is coaxially arranged with the cam and rotatably connected to the fixed rod, and the driving blade is located below the wing and rotates through the downwash airflow generated by the wing.

[0026] With the above technical solution, when the drive source is a propeller blade, it can be driven by the downwash airflow generated by the wing.

[0027] Compared with the prior art, the advantages of this invention are:

[0028] This application utilizes the downwash airflow generated by the drone's wings to sweep away the loose surface snow on the greenhouse roof, exposing the relatively stable bottom layer of snow. A snow removal mechanism then further removes the bottom layer of snow. The jet assembly guides part of the downwash airflow to the area below the nozzle. As the nozzle approaches the bottom layer of snow, it first inserts into the bottom snow on the greenhouse film. During this process, the downwash airflow in the jet nozzle blows away the bottom layer of snow below the nozzle. Furthermore, the reciprocating contact between the jet nozzle and the greenhouse film disrupts the airflow, resulting in better snow removal. This prevents the nozzle from directly compressing the bottom snow, which would otherwise make the relatively loose bottom layer of snow compact and difficult to remove. Once the jet nozzle contacts the greenhouse film, the nozzle moves relative to it, gradually contacting the greenhouse film and beginning to vibrate and remove snow. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the application.

[0030] Figure 2 This is a schematic diagram of the overall structure of the snow removal mechanism in the embodiment of the application.

[0031] Figure 3 for Figure 2 Cross-sectional schematic diagram of the snow removal mechanism.

[0032] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0033] Figure 5 for Figure 3 Enlarged diagram of point B in the middle.

[0034] Figure 6 This is an exploded view of the telescopic component according to an embodiment of the application.

[0035] Figure 7 This is a schematic diagram of the overall structure of the snow removal component according to an embodiment of the application.

[0036] Figure 8 This is a schematic diagram of the overall structure of the vibration assembly according to an embodiment of the application.

[0037] Figure 9 This is a schematic diagram of the overall structure of the jet assembly in an embodiment of the application.

[0038] Explanation of the labels in the diagram:

[0039] 100. Fuselage; 200. Wing; 300. Telescopic assembly; 301. Movable slot; 302. Mating slot; 30. Fixed rod; 31. Telescopic rod; 32. Elastic buffer; 400. Snow removal assembly; 401. Movable hole; 41. Abutment joint; 42. Connector; 500. Vibration assembly; 501. Smooth part; 502. Protrusion; 50. Cam; 51. Drive source; 52. Connecting shaft; 53. Boss; 54. Fixed platform; 600. Jet assembly; 60. Air collection hood; 61. Air duct; 62. Jet nozzle; 63. Elastic component. Detailed Implementation

[0040] The following will refer to the appendices in the embodiments of the present invention. Figure 1-9 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0041] It should be understood that the step numbers used in the text are for ease of description only and are not intended to limit the order in which the steps are performed.

[0042] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0043] The terms “comprising” and “including” indicate the presence of the described feature, whole, step, operation, element and / or component, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0044] The term “and / or” refers to any combination of one or more of the associated listed items, as well as all possible combinations, and includes these combinations.

[0045] In the first aspect, this application provides a multi-purpose unmanned helicopter, including a fuselage 100, with wings 200 provided on the top of the fuselage 100. When the fuselage 100 is hovering above a greenhouse, the downwash airflow generated by the rotation of the wings 200 can impact the snow on the greenhouse, sweeping away the surface snow on the greenhouse and exposing the underlying snow below.

[0046] The body 100 is equipped with a snow removal mechanism, which includes a telescopic component 300, a snow clearing component 400, and a vibration component 500.

[0047] The telescopic assembly 300 is vertically mounted along the bottom of the body 100. The telescopic assembly 300 includes a fixed rod 30 and a telescopic rod 31. The fixed rod 30 is located at the bottom of the body 100 and is fixedly installed with screws. The telescopic rod 31 is vertically telescopically mounted on the fixed rod 30 along the body 100. A movable groove 301 is formed at the bottom of the fixed rod 30, and the upper end of the telescopic rod 31 is inserted into the movable groove 301. The telescopic rod 31 and the fixed rod 30 are positioned within the movable groove 301. There is an elastic buffer 32, which is a spring. The two ends of the elastic buffer 32 abut against the telescopic rod 31 and the inner wall of the movable groove 301, respectively. When the telescopic rod 31 moves downward, it is resisted by the deformation of the elastic buffer 32. In order to facilitate the installation and disassembly of the telescopic rod 31, a limit ring is detachably installed on the fixed rod 30 at the opening of the movable groove 301 by screws. When the limit ring is removed, it is easy to put the telescopic rod 31 and the elastic buffer 32 in. After the limit ring is installed, it can prevent the telescopic rod 31 from detaching from the fixed rod 30.

[0048] The snow removal component 400 is mounted on the telescopic rod 31. The snow removal component 400 includes an abutment 41 and a connector 42. The abutment 41 can abut against the greenhouse film. The end face of the abutment 41 that abuts against the greenhouse film is an arc shape that arches upward toward the machine body 100. The shape of the end face of the abutment 41 is designed to protect the greenhouse film during vibration and prevent damage to the greenhouse film. On the other hand, it can gradually increase the contact area with the greenhouse film as the abutment 41 moves downward toward the greenhouse. The two ends of the connector 42 are detachably connected to the telescopic rod 31 and the abutment 41 by threads, which facilitates replacement.

[0049] The vibration assembly 500 includes a cam 50 and a drive source 51. The cam 50 is located in the movable groove 301, and the drive source 51 is located outside the fixed rod 30. A connecting shaft 52 is provided between the drive source 51 and the cam 50. One end of the connecting shaft 52 passes through the fixed rod 30 and enters the movable groove 301, while the other end is located outside the fixed rod 30. The drive source 51 drives the cam 50 to rotate. The telescopic rod 31 has a boss 53 corresponding to the cam 50 at one end located in the movable groove 301. During the process of the machine body 100 descending and the abutment 41 abutting against the greenhouse film, the telescopic rod 31 first retracts into the fixed rod 30, and then the boss 53 on the telescopic rod 31 continuously abuts against the contour edge of the cam 50, causing the cam 50 to rotate and carry... The telescopic rod 31 reciprocates. During the rotation of the cam 50, the protruding part 502 on the edge of the cam 50 abuts against the telescopic rod 31, causing the abutment 41 to squeeze the greenhouse film. After the smooth part 501 on the edge of the cam 50 abuts against the telescopic rod 31, the telescopic rod 31 rebounds under the elastic force of the greenhouse film itself. In this cycle, the abutment 41 forms a reciprocating vibration, causing the greenhouse film to shake repeatedly. The drive source 51 is a drive motor. A fixed platform 54 is provided on the fixed rod 30. The fixed platform 54 is detachably fixed to the fixed rod 30 by screws. The drive motor is set on the fixed platform 54. At the same time, for the purpose of balancing the counterweight, a counterweight block is also installed on the other side of the fixed platform 54 from the drive source 51. In another embodiment, the drive source 51 is a drive blade, the drive fan blade is coaxially arranged with the cam 50 and rotatably connected to the fixed rod 30, the drive blade is located below the wing 200 and rotates through the downwash airflow generated by the wing 200.

[0050] The snow removal mechanism also includes a jet assembly 600, which includes a gas collection hood 60, a gas guide pipe 61, and a jet nozzle 62 connected in sequence. The two openings of the gas guide pipe 61 are connected to the gas collection hood 60 and the jet nozzle 62, respectively. The opening of the gas collection hood 60 is located below the wing 200. The gas guide pipe 61 is a long flexible hose or a corrugated pipe. A small hole is provided on the surface of the fixed rod 30, connecting to the movable groove 301. The gas guide pipe 61 enters the movable groove 301 through the small hole and also enters the telescopic rod 31. The gas guide pipe 61 is movably positioned within the telescopic rod 31. Air nozzle 62 is located on the telescopic rod 31 and arranged downwards towards the body 100; the air nozzle 62 is located on the end face of the abutment 41 that contacts the greenhouse film, and the air nozzle 62 is telescopically mounted on the abutment 41 along the telescopic direction of the telescopic rod 31. An elastic element 63, which is a spring, is provided between the air nozzle 62 and the abutment 41. Under the elastic force of the elastic element 63, the air nozzle 62 is located outside the abutment 41, and after abutting the greenhouse, the air nozzle 62 can enter the air nozzle 62; specifically, the snow removal component 400 is in contact with... A movable hole 401 is provided on the end face of the greenhouse film, through which the abutment joint 41 and the connector 42 pass. A mating groove 302 is provided on the end of the telescopic rod 31 that connects to the snow removal component 400, corresponding to the movable hole 401. The top of the air nozzle 62 passes through the movable hole 401 and is located within the mating groove 302. An elastic element 63 is located within the mating groove 302, connecting the air nozzle 62 and the inner wall of the movable groove 301. The air guide pipe 61 enters the mating groove 302 and connects to the top interface of the air nozzle 62. The air outlet of the air nozzle 62 is located below the end face of the snow removal component 400 that contacts the greenhouse film. The abutment joint 41 faces the bottom layer of snow. When approaching, the nozzle 62 is inserted into the bottom layer of snow. The downward airflow inside the nozzle 62 impacts the interior of the bottom layer of snow, washing away the snow to prevent the arc-shaped end face of the connector 41 from directly contacting the bottom layer of snow and causing the snow to be compacted. After the nozzle 62 contacts the greenhouse film, the nozzle 62 begins to move gradually into the mating groove 302 relative to the telescopic rod 31 until the nozzle 62 is flush with the arc-shaped end face of the connector 41. The connector 41 then begins to vibrate to remove snow. During this process, the nozzle 62 repeatedly contacts the greenhouse film, causing the airflow to become dispersed, which plays a more positive role in the snow removal effect.

[0051] The working principle of this invention is as follows:

[0052] An unmanned helicopter hovers above the greenhouse. The downwash airflow generated by the wings 200 sweeps away the loose surface snow on the greenhouse roof, exposing the more stable bottom layer of snow. The jet assembly 600 guides part of the downwash airflow generated by the wings 200 to the area below the contact joint 41. As the contact joint 41 approaches the bottom layer of snow, it first inserts into the bottom snow on the greenhouse film. During this process, the downwash airflow in the jet nozzle 62 blows away the bottom snow below the contact joint 41. After the jet nozzle 62 contacts the greenhouse film, it moves relative to the telescopic rod 31 until the jet nozzle 62 is flush with the contact joint 41. The contact joint 41 then begins to contact the greenhouse film. During this process, the telescopic rod 31 moves towards the fixed position. As the rod 30 retracts, the telescopic rod 31 abuts against the cam 50. During the rotation of the cam 50, the protruding part 502 on the edge of the cam 50 abuts against the telescopic rod 31, which in turn drives the abutting joint 41 to squeeze the greenhouse film. After the smooth part 501 on the edge of the cam 50 abuts against the telescopic rod 31, the telescopic rod 31 rebounds under the elastic force of the greenhouse film itself. In this cycle, the abutting joint 41 forms a reciprocating vibration, causing the greenhouse film to shake repeatedly. In addition, during the reciprocating contact of the air nozzle 62 with the greenhouse film, the airflow of the air nozzle 62 can be disrupted, preventing the abutting joint 41 from directly squeezing the snow below, which would make the originally relatively loose bottom snow compacted and difficult to remove.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-purpose unmanned helicopter, characterized in that: Includes a fuselage (100), with wings (200) mounted on the top of the fuselage (100), and a snow removal mechanism mounted on the fuselage (100), the snow removal mechanism including... The telescopic assembly (300) includes a fixed rod (30) and a telescopic rod (31). The fixed rod (30) is located at the bottom of the body (100), and the telescopic rod (31) is vertically telescopically mounted on the fixed rod (30) along the body (100). A snow removal assembly (400) is provided on the telescopic rod (31). The snow removal assembly (400) includes an abutment (41) which can abut against the greenhouse film. The vibration assembly (500) includes a cam (50) and a drive source (51). The drive source (51) drives the cam (50) to rotate. During the process of the abutment joint (41) abutting against the greenhouse film, the telescopic rod (31) first retracts into the fixed rod (30), and then the telescopic rod (31) continuously abuts against the contour edge of the cam (50). The cam (50) rotates and drives the telescopic rod (31) to reciprocate.

2. The multi-purpose unmanned helicopter according to claim 1, characterized in that: The snow removal mechanism also includes a jet assembly (600), which includes a gas collection hood (60), an air duct (61), and a jet nozzle (62) connected in sequence. The opening of the gas collection hood (60) is located below the wing (200), and the jet nozzle (62) is located on the telescopic rod (31) and arranged facing downwards towards the fuselage (100). The downwash airflow generated by the wing (200) enters the gas collection hood (60) and is ejected by the jet nozzle (62).

3. A multi-purpose unmanned helicopter according to claim 2, characterized in that: The nozzle (62) is located on the end face of the abutment (41) that contacts the greenhouse film.

4. A multi-purpose unmanned helicopter according to claim 3, characterized in that: The air nozzle (62) is telescopically mounted on the abutment (41) along the telescopic direction of the telescopic rod (31). An elastic element (63) is provided between the air nozzle (62) and the abutment (41). Under the elastic force of the elastic element (63), the air nozzle (62) is located outside the abutment (41), and the air nozzle (62) can enter the air nozzle (62) after it abuts the greenhouse.

5. A multi-purpose unmanned helicopter according to claim 1, characterized in that: The end face of the abutting joint (41) that abuts against the greenhouse film is an arc shape that arches upward toward the machine body (100).

6. A multi-purpose unmanned helicopter according to claim 1, characterized in that: The snow removal assembly (400) also includes a connector (42), the two ends of which are connected to the telescopic rod (31) and the abutment (41) respectively, and the abutment (41) is detachably connected to the connector (42).

7. A multi-purpose unmanned helicopter according to claim 1, characterized in that: An elastic buffer (32) is provided between the telescopic rod (31) and the fixed rod (30). When the telescopic rod (31) moves downward, it is subjected to the resistance generated by the deformation of the elastic buffer (32).

8. A multi-purpose unmanned helicopter according to claim 1, characterized in that: The driving source (51) is a drive motor, and a fixed platform (54) is provided on the fixed rod (30), and the drive motor is mounted on the fixed platform (54).

9. A multi-purpose unmanned helicopter according to claim 1, characterized in that: The drive source (51) is a drive blade, the drive fan blade is coaxially arranged with the cam (50) and rotatably connected to the fixed rod (30). The drive blade is located below the wing (200) and rotates through the downwash airflow generated by the wing (200).

Images