Nozzle assembly and multicopter

Abstract

The utility model provides a kind of nozzle assembly and multi-rotor machine, it is related to unmanned vehicle technical field, the nozzle assembly includes the connecting seat for being connected with arm, and the nozzle mounting seat of detachably being arranged on the connecting seat;The connecting seat includes screwing portion and locking portion;The nozzle mounting seat includes screwing cooperation portion and locking cooperation portion, the screwing cooperation portion is with the screwing portion screwing cooperation, the screwing portion is separated with the screwing cooperation portion under dismounting state;The locking portion is with the locking cooperation portion when the screwing portion and the screwing cooperation portion rotate in place and locks cooperation.The nozzle assembly provided by the utility model can provide convenience for operator when dismounting nozzle.

Description

Technical Field

[0001] This utility model relates to unmanned aerial vehicle (UAV) technology, and more particularly to a nozzle assembly and a multi-rotor aircraft. Background Technology

[0002] Among existing aerial spraying equipment, using multi-rotor aircraft for low-altitude spraying operations offers advantages such as flexibility and operational efficiency.

[0003] In actual operation, different nozzle assemblies with different spray particle sizes are usually required for different crops or usage needs. However, existing nozzle assemblies are mostly fixed to the machine arm with bolts or other fixing methods, which is inconvenient for operators to change them. Utility Model Content

[0004] To address the above problems or situations, this utility model provides a nozzle assembly and a multi-rotor aircraft, which can provide convenience for operators when assembling and disassembling nozzles.

[0005] In a first aspect, the present invention provides a nozzle assembly, including a connecting seat for connecting to a machine arm, and a nozzle mounting seat detachably disposed on the connecting seat;

[0006] The connector includes a screw-in part and a locking part;

[0007] The nozzle mounting base includes a screw-fit part and a locking part. The screw-fit part is screwed into the screw-fit part, and the screw-fit part is separated from the screw-fit part in the disassembled state.

[0008] The locking part and the locking engagement part lock into place when the screw-in part and the screw-in engagement part are rotated into position.

[0009] In one embodiment of the nozzle assembly, the screw-fit part includes a screw-fit post and a protrusion extending around the periphery of the screw-fit post;

[0010] The screw joint includes a screw sleeve that is rotatably fitted with the screw joint fitting post. A protruding ridge is provided on the inner circumference of the screw sleeve, and a notch is provided for the protrusion to extend axially into the screw sleeve from the screw joint fitting post.

[0011] When the screw joint and the screw-fitting part are rotated into place, the convex ridge engages with the protrusion to prevent the screw joint and the screw-fitting part from separating axially.

[0012] In one embodiment of the nozzle assembly, a positioning groove is further provided on the convex ridge, and a positioning protrusion is further formed on the screw-fitting post;

[0013] When the connecting seat and the nozzle mounting seat are rotated into position, the positioning protrusion is located in the positioning slot.

[0014] In one embodiment of the nozzle assembly, the locking part includes a pin hole disposed on the screw sleeve and a locking pin disposed in the pin hole, wherein the pin shaft of the locking pin is perpendicular to the cylinder shaft of the screw sleeve.

[0015] The locking mating part includes an insertion hole provided on the protrusion, and the hole axis of the insertion hole is perpendicular to the column axis of the screw-fitting post;

[0016] When the connecting seat and the nozzle mounting seat are rotated into place, the locking pin is inserted and locked into the socket.

[0017] In one embodiment of the nozzle assembly, the locking part is disposed on the upper side of the protruding ridge, and the locking part further includes an elastic element for actuating the locking pin to cause the locking pin to pass through the pin hole in the axial direction of the screw sleeve.

[0018] In one embodiment of the nozzle assembly, the connecting seat includes a first sub-connecting seat and a second sub-connecting seat, wherein the first sub-connecting seat includes a collar for being fitted onto the machine arm, and a clamping buckle connected to the collar;

[0019] The screw-on portion is formed on the second sub-connector, and the clamping buckle clamps the second sub-connector.

[0020] In one embodiment of the nozzle assembly, the second sub-connector is further provided with a first screw hole, and the clamping buckle is provided with a second screw hole corresponding to the first screw hole;

[0021] A bolt is provided to be threaded into the first screw hole and the second screw hole respectively.

[0022] Secondly, this utility model also provides a multi-rotor aircraft, including the nozzle assembly described above.

[0023] In one embodiment of the multirotor aircraft, the nozzle assembly further includes a spray drive motor, a liquid inlet plate, and an atomizing plate arranged sequentially from top to bottom, with the spray drive motor located at the bottom of the nozzle mounting base.

[0024] In one embodiment of the multirotor aircraft, it also includes a plurality of front arms near the nose and a plurality of rear arms near the tail, and a plurality of nozzle assemblies are provided on each of the rear arms.

[0025] Each of the rear arms has a rotor at its free end, and at least one of the nozzle assemblies is located below the rotor.

[0026] Beneficial effects:

[0027] In the nozzle assembly provided by this utility model, the connecting seat and the nozzle mounting seat can be connected by screwing, which is simple in structure and easy to disassemble. Simultaneously, a locking part and a locking engagement part are provided for locking engagement, thereby maintaining the connection state between the connecting seat and the nozzle mounting seat. Operators can connect the connecting seat and the nozzle mounting seat through simple screwing and locking, and can also disassemble the connecting seat and the nozzle mounting seat through simple unlocking and reverse rotation, facilitating disassembly and assembly operations. The structure is simple and easy to manufacture.

[0028] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 A schematic diagram illustrating the principle structure of the nozzle assembly provided by this utility model;

[0032] Figure 2 A three-dimensional structural diagram of the nozzle assembly provided by this utility model mounted on the machine arm in one embodiment;

[0033] Figure 3 A three-dimensional structural diagram of the connector provided by this utility model in one embodiment;

[0034] Figure 4 A three-dimensional structural diagram of the nozzle mounting base provided by this utility model in one embodiment;

[0035] Figure 5 A longitudinal partial cross-sectional view of the connecting seat and nozzle mounting seat provided by this utility model in a connected state in one embodiment;

[0036] Figure 6A schematic cross-sectional view of the second sub-connector provided by this utility model in one embodiment;

[0037] Figure 7 A three-dimensional structural schematic diagram of the nozzle assembly provided by this utility model in one embodiment;

[0038] Figure 8 This is a top plan view of a multirotor aircraft equipped with a nozzle assembly provided by the present invention in one embodiment.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Nozzle assembly;

[0041] 11. Connecting seat; 111. Screw-in part; 112. Locking part;

[0042] 12. Nozzle mounting base; 121. Screw-fitting part; 122. Locking part;

[0043] 2. Nozzle assembly;

[0044] 21. First sub-connector; 211. Collar; 212. Clamping buckle;

[0045] 22. Second sub-connector; 221. Screw-in part; 2211. Screw-in sleeve; 2212. Raised ridge; 2213. Notch; 2214. Positioning groove; 222. Locking part; 2221. Locking pin; 223. Snap groove; 224. First screw hole;

[0046] 23. Nozzle mounting base; 231. Screw-fitting part; 2311. Screw-fitting post; 2312. Protrusion; 2313. Positioning protrusion; 232. Locking part; 2321. Insertion hole;

[0047] 24. Spray drive motor;

[0048] 25. Liquid inlet tray;

[0049] 26. Atomizing disc.

[0050] 3. Multirotor aircraft;

[0051] 31. Machine arm;

[0052] 32. Machine frame;

[0053] 33. Rotor. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0055] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] To address the inconvenience of replacing nozzle components for existing operators, this invention provides a quick-change structure that facilitates nozzle component replacement, reducing replacement time and making assembly and disassembly easier.

[0058] See Figure 1 The present invention provides an exemplary schematic diagram of the nozzle assembly. The nozzle assembly 1 may include a connecting seat 11 and a nozzle mounting seat 12. The connecting seat 11 is mainly used to connect with the machine arm so that the nozzle assembly and the machine arm form a relatively fixed connection relationship. The nozzle mounting seat 12 is detachably mounted on the connecting seat 11. Accordingly, the operator can connect the two together or separate them according to specific disassembly and assembly requirements.

[0059] In this invention, the connecting seat 11 may include a screw-on portion 111 and a locking portion 112. Correspondingly, the nozzle mounting seat 12 may include a screw-on mating portion 121 and a locking mating portion 122. The screw-on mating portion 121 is screwed into the screw-on portion 111, so the operator can rotate one of them relative to the other to form a connection. Correspondingly, the operator can separate the two by unscrewing them, that is, in the disassembled state, the screw-on portion 111 is separated from the screw-on mating portion 121.

[0060] The locking part 112 and the locking engagement part 122 lock into place when the screw connection part 111 and the screw connection engagement part 121 are rotated into place, so that a stable connection can be formed between the connecting seat 11 and the nozzle mounting seat 12.

[0061] The connector and nozzle mounting base provided by this utility model can be connected by screwing, resulting in a simple structure and easy disassembly. A locking part and a locking engagement part are also provided for locking, thereby maintaining the connection between the connector and the nozzle mounting base. Operators can connect the connector and the nozzle mounting base using simple screwing and locking, and can also disassemble them using simple unlocking and reverse rotation, facilitating assembly and disassembly operations. The structure is simple and easy to manufacture.

[0062] It is understood that the locking part and the locking engagement part can also serve as a disassembly locking component between the connecting seat and the nozzle mounting seat. That is, when the operator needs to disconnect the connection between the connecting seat and the nozzle mounting seat, the locking part and the locking engagement part must be unlocked before the connecting seat and the nozzle mounting seat can be separated.

[0063] See Figures 2 to 8 The present invention exemplifies the multirotor, connecting seat, and nozzle mounting seat structures provided in various embodiments. The present invention can provide a multirotor 3, which may include an arm 31 and a nozzle assembly 2 disposed on the arm 31.

[0064] The nozzle assembly 2 may include a connecting seat, which may specifically include a first sub-connecting seat 21 and a second sub-connecting seat 22, wherein the first sub-connecting seat 21 is used to connect to the machine arm 31, and the second sub-connecting seat 22 is used to connect to the nozzle mounting seat 23.

[0065] like Figure 3 As shown, combined with Figure 2 The first sub-connector 21 includes a collar 211 for being fitted onto the arm 31, and a clamping buckle 212 connected to the collar 211.

[0066] The aforementioned screw-on portion can be formed on the second sub-connector 22, and the clamping buckle 212 clamps the second sub-connector 22. In order to make the clamping more secure, the second sub-connector 22 can be formed with a buckle groove 223 that cooperates with the clamping buckle 212. The clamping buckle 212 is fastened in the buckle groove 223, so that the first sub-connector 21 and the second sub-connector 22 form a stable connection.

[0067] Furthermore, a first screw hole 224 may be provided on the second sub-connector 22, and a second screw hole (not shown in the figure) corresponding to the first screw hole 224 may be provided on the clamping buckle 212. A bolt may be provided to be threadedly connected to the first screw hole 224 and the second screw hole respectively, so that the first sub-connector 21 and the second sub-connector 22 can form a more stable connection relationship.

[0068] In this embodiment, the second sub-connector 22 includes a screw-in portion 221 and a locking portion 222. Specifically, the screw-in portion 221 includes a screw-in sleeve 2211, and a protruding ridge 2212 and a notch 2213 are formed on the inner circumference of the screw-in sleeve 2211.

[0069] The nozzle mounting base 23 includes a screw-fit part 231 and a locking part 232. Specifically, the screw-fit part 231 may include a screw-fit post 2311 and a protrusion 2312 extending around the post circumference of the screw-fit post 2311.

[0070] The screw-fit sleeve 2211 and the screw-fitting pin 2311 are rotatably fitted together. The notch 2213 allows the screw-fitting pin 2311 to extend axially into the screw-fit sleeve 2211. That is, the notch 2213 and the protrusion 2312 are fitted together, and the screw-fitting pin 2311 enters into the screw-fit sleeve 2211. Thereafter, by rotating the screw-fitting pin 2311, the protrusion 2312 and the notch 2213 are misaligned. Correspondingly, with the cooperation of the ridge 2212 and the protrusion 2312, the screw-fitting part 221 and the screw-fitting part 231 can be prevented from separating axially.

[0071] It is understandable that when the protrusion 2312 and the notch 2213 are misaligned, it can be regarded as the initial rotation state of the screw joint 221 and the screw joint mating part 231.

[0072] Furthermore, to ensure a relatively stable connection between the screw-on portion 221 and the screw-on mating portion 231, a positioning groove 2214 is provided on the protruding ridge 2212, and a positioning protrusion 2313 is formed on the screw-on mating post 2311. Correspondingly, with the positioning protrusion 2313 located within the positioning groove 2214, the second sub-connecting seat 22 (i.e., the aforementioned connecting seat) and the nozzle mounting seat 23 rotate into position, thus facilitating the operator's perception of the rotational positioning status between the two.

[0073] In one embodiment, the locking part 222 may include a pin hole (not shown) provided on the screw-on sleeve 2211 and a locking pin 2221 provided in the pin hole, wherein the pin shaft of the locking pin 2221 is perpendicular to the cylinder shaft of the screw-on sleeve 2211.

[0074] Corresponding to the structure of the locking part 222, the locking mating part 232 includes an insertion hole 2321 provided on the protrusion 2312, the hole axis of the insertion hole 2321 being perpendicular to the column axis of the screw-fitting post 2311. Accordingly, when the second sub-connecting seat 22 and the nozzle mounting seat 23 are rotated into position, the locking pin 2221 is inserted into the insertion hole 2321, so that the two form an insertion lock. Thus, the second sub-connecting seat 22 and the nozzle mounting seat 23 can maintain a stable connection relationship in the rotated-in state.

[0075] In one embodiment, the locking part 222 is disposed on the upper side of the protruding ridge 2212, and the locking part 222 further includes an elastic element (not shown) for actuating the locking pin 2221 to cause the locking pin 2221 to pass through the pin hole in the axial direction of the screw-in sleeve 2211. Figure 5 In this context, the elastic element is a spring, which can be sleeved on the locking pin 2221. Under normal conditions, the spring is used to force the locking pin 2221 to move in the axial direction of the screw-on sleeve 2211.

[0076] When an operator installs nozzle assembly 2: First, the screw-fitting post 2311 and the screw-fitting sleeve 2211 are positioned approximately coaxially, and the protrusion 2312 is aligned with the notch 2213. Next, the screw-fitting post 2311 is pushed so that the protrusion 2312 enters the screw-fitting sleeve 2211 through the notch 2213. The operator then rotates the screw-fitting post 2311 to create a misalignment between the protrusion 2312 and the notch 2213. Then, when the screw-fitting post 2311 and the screw-fitting sleeve 2211 are rotated into position, the locking pin 2221 is inserted into the insertion hole 2321 to lock the rotated position, thus completing the installation of the nozzle assembly.

[0077] When an operator disassembles nozzle assembly 2: First, remove the locking pin 2221 from the insertion hole 2321 to unlock it. Second, rotate the screw-fitting post 2311 until the protrusion 2312 aligns with the notch 2213. Third, remove the screw-fitting post 2311 from the screw-fitting sleeve 2211, thereby completing the disassembly of the nozzle assembly.

[0078] Operators can easily disassemble or install the nozzle assembly provided by this utility model, completing the corresponding tasks with simple operations. This facilitates quick nozzle replacement and improves work efficiency.

[0079] like Figure 7 As shown, the nozzle assembly 2 provided by this utility model may further include a spray drive motor 24, a liquid inlet plate 25, and an atomizing plate 26 arranged sequentially from top to bottom. The spray drive motor 24 is located at the bottom of the nozzle mounting base 23. The solution is input into the atomizing plate 26 through the liquid inlet plate 25. Driven by the spray drive motor 24, the atomizing plate 26 forces the solution to undergo centrifugal motion to tear it into droplets, which are then finally sprayed out of the atomizing plate 26 to the outside.

[0080] like Figure 8 As shown, the multi-rotor aircraft 3 provided by this utility model may include a frame 32 and multiple arms 31 mounted on the frame 32. Each arm 31 has a rotor 33 at its free end. The multiple arms 31 can be divided into multiple front arms and multiple rear arms according to the nose and tail. That is, the arms closer to the nose are multiple front arms, and the arms closer to the tail are multiple rear arms. Here, each of the rear arms is provided with multiple nozzle assemblies 2, wherein at least one nozzle assembly 2 is located below the rotor 33, thereby utilizing the downward airflow generated by the rotor 33 to act on the droplets, making the droplet ejection direction more directional.

[0081] Finally, it should be noted that the above-described embodiments are merely specific implementations of this utility model, used to illustrate the technical solutions of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model.

Claims

1. A nozzle assembly, characterized in that, It includes a connector for connecting to the machine arm, and a nozzle mounting base detachably mounted on the connector; The connector includes a screw-in part and a locking part; The nozzle mounting base includes a screw-fit part and a locking part. The screw-fit part is screwed into the screw-fit part, and the screw-fit part is separated from the screw-fit part in the disassembled state. The locking part and the locking engagement part lock into place when the screw-in part and the screw-in engagement part are rotated into position.

2. The nozzle assembly as claimed in claim 1, characterized in that, The screw-fit part includes a screw-fit post and a protrusion extending around the periphery of the screw-fit post; The screw joint includes a screw sleeve that is rotatably fitted with the screw joint fitting post. A protruding ridge is provided on the inner circumference of the screw sleeve, and a notch is provided for the protrusion to extend axially into the screw sleeve from the screw joint fitting post. When the screw joint and the screw-fitting part are rotated into place, the convex ridge engages with the protrusion to prevent the screw joint and the screw-fitting part from separating axially.

3. The nozzle assembly as described in claim 2, characterized in that, A positioning groove is also provided on the convex ridge, and a positioning protrusion is also formed on the screw-fitting post; When the connecting seat and the nozzle mounting seat are rotated into position, the positioning protrusion is located in the positioning slot.

4. The nozzle assembly as described in claim 2, characterized in that, The locking part includes a pin hole provided on the screw-on sleeve and a locking pin provided in the pin hole, wherein the pin body axis of the locking pin is perpendicular to the cylinder axis of the screw-on sleeve. The locking mating part includes an insertion hole provided on the protrusion, and the hole axis of the insertion hole is perpendicular to the column axis of the screw-fitting post; When the connecting seat and the nozzle mounting seat are rotated into place, the locking pin is inserted and locked into the socket.

5. The nozzle assembly as described in claim 4, characterized in that, The locking part is disposed on the upper side of the protruding ridge, and the locking part further includes an elastic element for actuating the locking pin so that the locking pin passes through the pin hole in the axial direction of the screw sleeve.

6. The nozzle assembly as described in any one of claims 1 to 5, characterized in that, The connecting seat includes a first sub-connecting seat and a second sub-connecting seat. The first sub-connecting seat includes a collar for being fitted onto the machine arm and a clamping buckle connected to the collar. The screw-on portion is formed on the second sub-connector, and the clamping buckle clamps the second sub-connector.

7. The nozzle assembly as claimed in claim 6, characterized in that, The second sub-connector is also provided with a first screw hole, and the clamping buckle is provided with a second screw hole corresponding to the first screw hole; A bolt is provided to be threaded into the first screw hole and the second screw hole respectively.

8. A multi-rotor aircraft, characterized in that, Includes the nozzle assembly as described in any one of claims 1 to 7.

9. The multirotor aircraft as described in claim 8, characterized in that, The nozzle assembly also includes a spray drive motor, a liquid inlet plate, and an atomizing plate arranged sequentially from top to bottom, with the spray drive motor located at the bottom of the nozzle mounting base.

10. The multirotor aircraft as described in claim 8, characterized in that, It also includes multiple front arms near the head and multiple rear arms near the tail, with multiple nozzle assemblies provided on each of the rear arms. Each of the rear arms has a rotor at its free end, and at least one of the nozzle assemblies is located below the rotor.

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