Spraying equipment and aircraft

Abstract

An embodiment of the present invention provides a spraying device and an aircraft, which relate to the field of plant protection technology. The spraying device includes a mounting seat, a connecting rod, a nozzle, and an elastic member. The connecting rod and the mounting seat are rotatably matched and have at least two locking positions. The connecting rod is connected to the nozzle, and the nozzle can change as the position of the connecting rod changes. The elastic member acts on the mounting seat and the connecting rod, so that the connecting rod and the mounting seat remain locked in one of the locking positions. In this way, when the connecting rod is actuated by an external force, for example, when the user pulls the connecting rod, the connecting rod can overcome the elastic force of the elastic member and unlock the mounting seat, and after the connecting rod rotates relative to the mounting seat, it can be locked with the mounting seat at any other locking position. After the user releases the connecting rod, the connecting rod will remain locked with the mounting seat under the action of the elastic member, and the position of the nozzle is relatively stable. In combination with the above, through the spraying device, the position adjustment of the nozzle is simple and convenient, which is convenient for user operation.

Description

Technical Field

[0001] The present invention relates to the technical field of plant protection, and in particular to a spraying device and an aircraft. Background Art

[0002] A plant protection drone is an unmanned aircraft used for agricultural and forestry plant protection operations. Generally, it is equipped with a sprinkler for spraying operations.

[0003] In the prior art, the position adjustment of the nozzle is relatively complicated and inconvenient to operate. Summary of the Invention

[0004] The present invention provides a spraying device and an aircraft, which can make the position adjustment of a spray head simple and convenient.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] An embodiment of the present invention provides a spraying device, comprising:

[0007] Mounting seat;

[0008] a connecting rod, wherein the connecting rod and the mounting seat have at least two locking positions;

[0009] a spray head mounted to the connecting rod; and

[0010] an elastic member, the elastic member acting on the mounting seat and the connecting rod, the elastic member being used to keep the connecting rod and the mounting seat locked in one of the locking positions;

[0011] The connecting rod is used to overcome the elastic force of the elastic member under the action of an external force to unlock the mounting seat, and is locked with the mounting seat at any other locking position after the connecting rod and the mounting seat rotate.

[0012] Optionally, a matching portion and a mounting portion are respectively provided at both ends of the connecting rod, the matching portion matches with the mounting seat, and the mounting portion is connected to the nozzle.

[0013] Optionally, the mounting seat is provided with a mounting post, the matching portion is provided with a matching hole, the mounting post is rotatably matched with the matching hole, and the matching portion can move axially and swing radially along the mounting post.

[0014] Optionally, at least a portion of the mounting post is a frustum, so that as the matching portion gradually approaches the mounting seat, the mounting post and the matching hole are gradually clamped.

[0015] Optionally, the spraying device further includes a connecting piece, which is connected to the end of the mounting column to limit the matching portion.

[0016] Optionally, a threaded hole is provided at the end of the mounting post, and the connecting piece is threadedly connected to the mounting post through the threaded hole.

[0017] Optionally, the elastic member is a spring, which is sleeved on the mounting column, and one end of the elastic member abuts or is connected to the matching portion, and the other end of the elastic member abuts or is connected to the connecting member.

[0018] Optionally, the fitting portion is provided with a fixing ring around the fitting hole, and the fixing ring is sleeved on one end of the elastic member away from the connecting member.

[0019] Optionally, at least part of the retaining ring is spaced from the mounting post to give way when the engaging portion swings relative to the mounting post.

[0020] Optionally, the mounting seat is provided with at least one first positioning portion, and the matching portion is provided with at least two second positioning portions; wherein the first positioning portion is used to engage with different second positioning portions so that the matching portion and the mounting seat are locked in different locking positions, or,

[0021] The mounting seat is provided with at least two first positioning portions, and the matching portion is provided with at least one second positioning portion; wherein the second positioning portion is used to engage with different first positioning portions so that the matching portion and the mounting seat are locked at different locking positions.

[0022] Optionally, the first positioning portion is a positioning column, and the second positioning portion is a positioning hole; or,

[0023] The first positioning portion is a positioning hole, and the second positioning portion is a positioning column; or,

[0024] The first positioning portion and the second positioning portion are both positioning teeth.

[0025] Optionally, at least a portion of the positioning post is a frustum, so that when the positioning post is gradually inserted into the positioning hole, the positioning post and the positioning hole are gradually clamped.

[0026] Optionally, the mounting seat is further provided with a limiting ring, and at least a portion of the matching portion is limited within the limiting ring.

[0027] Optionally, the connecting rod is provided with a stop surface, and the stop surface is used to be stopped by the limiting ring when the matching portion and the mounting seat are unlocked.

[0028] Optionally, the connecting rod includes a rod body, one end of the rod body forms the mounting portion, the other end of the rod body forms the assembly portion, the mating portion is clamped in the assembly portion, and the mating portion is used to limit the end face of the assembly portion that protrudes from the portion located in the limiting ring, and the end face forms the stop surface.

[0029] Optionally, the assembly portion is made of a soft material, and the matching portion is formed in the assembly portion by in-line processing.

[0030] Optionally, there are multiple first positioning portions, and the multiple first positioning portions are spaced apart along the circumferential direction.

[0031] Optionally, the limiting ring and the plurality of first positioning portions are distributed in concentric circles, and the plurality of first positioning portions are located inside the limiting ring.

[0032] Optionally, the matching portion is provided with a weight-reducing hole.

[0033] Optionally, the spraying device further includes an angle sensor, and the angle sensor is used to detect the relative rotation angle between the matching portion and the mounting seat.

[0034] Optionally, the mounting seat is provided with an indicator mark, and the connecting rod is provided with a gear mark, and the gear mark corresponds to the indicator mark to indicate the relative rotation angle between the matching portion and the mounting seat.

[0035] An embodiment of the present invention further provides an aircraft, which includes a carrier and the above-mentioned spraying device;

[0036] The mounting base of the spraying device is carried on the carrier.

[0037] The beneficial effects of the spraying device and the aircraft according to the embodiments of the present invention include, for example:

[0038] The spraying device includes a mounting base, a connecting rod, a spray head, and an elastic member. The connecting rod is rotatably matched with the mounting base and has at least two locking positions. The connecting rod is connected to the spray head, and the spray head can change with the position of the connecting rod. The elastic member acts on the mounting base and the connecting rod, so that the connecting rod and the mounting base remain locked in one of the locking positions. In this way, when the connecting rod is actuated by an external force, for example, when the user pulls the connecting rod, the connecting rod can overcome the elastic force of the elastic member and unlock the mounting base, and after the connecting rod rotates relative to the mounting base, it can be locked with the mounting base in any of the other locking positions. After the user releases the connecting rod, the connecting rod will remain locked with the mounting base under the action of the elastic member, and the position of the spray head is relatively stable. In combination with the above, through the spraying device, the position of the spray head is simple and convenient to adjust, which is convenient for user operation.

[0039] The aircraft comprises a spraying device and has all the functions of the spraying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 This is a schematic diagram of the aircraft from a first-person perspective provided in this embodiment;

[0042] Figure 2 A schematic diagram of the aircraft provided in this embodiment from a second perspective;

[0043] Figure 3 A circuit block diagram of some components in the aircraft provided in this embodiment;

[0044] Figure 4 A schematic diagram of a spraying device provided in this embodiment, wherein the spray head is not shown;

[0045] Figure 5 for Figure 4 A partial enlarged view of the M in the middle;

[0046] Figure 6 A schematic diagram of the connecting rod and the nozzle provided in this embodiment from a first perspective;

[0047] Figure 7 A schematic diagram of a mounting base in the spray device provided in this embodiment from a first viewing angle;

[0048] Figure 8 A schematic diagram of the mounting base of the spray device provided in this embodiment from a second viewing angle;

[0049] Figure 9 A schematic diagram of the connecting rod and the nozzle provided in this embodiment from a second perspective;

[0050] Figure 10 for Figure 9 A local enlarged view of point N in the middle;

[0051] Figure 11 A simplified diagram of the connection rod and mounting base provided in this embodiment.

[0052] Icons: 1000-aircraft; 100-spraying device; 10-mounting seat; 101-support ear; 11-first positioning part; 12-limiting ring; 13-mounting column; 131-threaded hole; 14-indicator mark; 20-connecting rod; 21-matching part; 211-second positioning part; 212-weight reduction hole; 213-matching hole; 214-fixing ring; 22-mounting part; 23-rod body; 24-assembly part; 241-stop surface; 25-gear position mark; 26-mounting screw; 30-spray nozzle; 40-elastic part; 50-connecting part; 51-screw; 52-stop plate; 60-angle sensor; 200-carrier; 201-fuselage; 202-arm; 203-battery; 204-liquid storage container; 205-landing gear; 206-flight control component; 207-rotor assembly. DETAILED DESCRIPTION

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0054] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0055] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0056] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0057] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0058] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0059] Plant protection drones are unmanned aircraft used for agricultural and forestry plant protection operations. They typically carry sprinklers for spraying. In some technologies, the sprinklers are fixed relative to the drone's fuselage, making their position impossible to adjust. In other technologies, the sprinklers can be adjusted, but this process is complex and inconvenient.

[0060] In view of this, please refer to Figures 1-11 This embodiment provides a spraying device 100 and an aircraft 1000, which can effectively improve the above-mentioned technical problems and make the position adjustment process of the nozzle 30 simple and convenient.

[0061] Please refer to Figure 1-Figure 3 , the aircraft 1000 includes a carrier 200 and a spraying device 100 .

[0062] The carrier 200 includes a fuselage 201, an arm 202, a battery 203, a liquid reservoir 204, a landing gear 205, a flight control assembly 206, and a rotor assembly 207. The arms 202, battery 203, liquid reservoir 204, landing gear 205, and flight control assembly 206 are all mounted on the fuselage 201. There are two arms 202, symmetrically located on either side of the fuselage 201. Each arm 202 has one end rotatably connected to the fuselage 201, and the other end of each arm 202 extends away from the fuselage 201. The rotor assembly 207 and the spraying device 100 are both mounted on the end of the arm 202 facing away from the fuselage 201, with the rotor assembly 207 located above the arm 202 and the spraying device 100 located below. Of course, in other embodiments, the carrier 200 can also be configured as a multi-rotor structure.

[0063] The spraying device 100 includes a mounting base 10, a connecting rod 20, and a spray head 30. The mounting base 10 is mounted on the carrier 200, specifically, on the end of the arm 202 away from the body 201. One end of the connecting rod 20 can be moved leftward or rightward relative to the mounting base 10 and rotated forward and backward. The spray head 30 is mounted on the other end of the connecting rod 20. This allows the connecting rod 20 to be unlocked and locked with the mounting base 10 by moving it left and right, and its position to be adjusted by rotating it forward and backward. Since the spray head 30 is mounted on the connecting rod 20, the position of the spray head 30 can be adjusted.

[0064] The above-mentioned "can be turned left or right" can be understood as: Figure 1 In the embodiment, the connecting rod 20 located on the left side of the fuselage 201 can be moved to the right, and the connecting rod 20 located on the right side of the fuselage 201 can be moved to the left.

[0065] In this embodiment, it is understood that the carrier 200 is a drone, specifically a plant protection drone. The aircraft 1000 can be used in the agricultural industry for operations such as spraying pesticides or watering crops. By adjusting the position of the nozzle 30, the different flight postures (forward flight, backward flight) of the plant protection drone can be effectively adapted, effectively improving the spraying accuracy and spray width of the nozzle 30.

[0066] In the above description, an angle sensor 60 can be installed at the connection position between the mounting base 10 and the connecting rod 20 to detect the relative position (relative rotation angle) of the connecting rod 20 and the mounting base 10. In addition, the angle sensor 60, the battery 203 and the nozzle 30 are all electrically connected to the flight control component 206. It can be understood that the spraying device 100 can also include an angle sensor 60 ( Figure 3 As shown, the angle sensor 60 is used to detect the relative rotation angle between the connecting rod 20 (specifically the matching portion 21, which will be described in detail below) and the mounting seat 10.

[0067] The angle sensor 60 can be installed at the connection position between the connecting rod 20 (specifically the matching portion 21, which will be described in detail below) and the mounting base 10. By detecting the angle, the rotation angle of the connecting rod 20 can be obtained, and it can be clearly determined whether the connecting rod 20 is in a forward tilted state, a backward tilted state, or a vertical state ( Figure 2 The position of the nozzle 30 can be determined by measuring the angle sensor 60 (shown as vertical). Generally, the position of the nozzle 30 is associated with the flight mission requirements of the aircraft 1000. Since the angle sensor 60 is electrically connected to the flight control component 206, when the flight control component 206 detects that the angle is inconsistent with the mission requirements, the flight control component 206 can alert the user, for example, by displaying a warning message on a remote control or mobile phone. This reminds the user to correct the position of the nozzle 30 of the aircraft 1000.

[0068] Of course, the aircraft 1000 can also be used in other fields such as spraying fire extinguishing liquid in forest fires, sowing seeds, aerial photography, power inspections, environmental monitoring, forest fire prevention and disaster inspections. In this embodiment, the carrier 200 is a non-manned drone, which can operate automatically according to a preset path, flight speed, posture, etc., or can be manually controlled by an operator. In other embodiments, when the design meets the requirements, a driver can also be carried, so that the relevant operations can be manually performed by the driver in the cab. At the same time, the carrier 200 is not limited to drones. For example, the carrier 200 can also be a robot, an unmanned vehicle, an unmanned ship, etc.

[0069] It should be noted that Figure 1 and Figure 2The front, rear, left, right, up, and down directions shown in the figure are relative position relationships that can be clearly understood by those skilled in the art when the aircraft 1000 is placed normally or in flight.

[0070] Please refer to Figure 4-11 This embodiment provides a spraying device 100, specifically, Figure 4 The spraying device 100 is shown, but the spray head 30 is not shown. Figure 5 for Figure 4 Enlarged view of the middle area. Figure 6 The spray device 100 is shown, but the mounting base 10 is not shown. Figure 7 and Figure 8 A mounting 10 for a spray device 100 is shown. Figure 9 by Figure 6 Another perspective of the spraying device 100 is shown. Figure 10 for Figure 9 Enlarged view of the middle area. Figure 11 A simplified diagram of the coupling portion between the connecting rod 20 and the mounting base 10 of the spraying device 100 is shown.

[0071] Combine Figure 4-11 , the spraying device 100 comprises:

[0072] Mounting seat 10;

[0073] The connecting rod 20 and the mounting base 10 have at least two locking positions;

[0074] a spray head 30 mounted to the connecting rod 20; and

[0075] An elastic member 40 acts on the mounting base 10 and the connecting rod 20 to keep the connecting rod 20 and the mounting base 10 locked in one of the locking positions;

[0076] The connecting rod 20 is used to overcome the elastic force of the elastic member 40 under the action of an external force to unlock the mounting base 10, and is locked with the mounting base 10 at any other locking position after the connecting rod 20 and the mounting base 10 rotate.

[0077] In conjunction with the above, the spraying device 100 includes a mounting base 10, a connecting rod 20, a spray head 30, and an elastic member 40. The connecting rod 20 is rotatably engaged with the mounting base 10 and has at least two locking positions. The connecting rod 20 is connected to the spray head 30, and the spray head 30 can change with the position of the connecting rod 20. The elastic member 40 acts on the mounting base 10 and the connecting rod 20, so that the connecting rod 20 and the mounting base 10 remain locked in one of the locking positions. In this way, when the connecting rod 20 is actuated by an external force, such as when a user pulls the connecting rod 20, the connecting rod 20 can overcome the elastic force of the elastic member 40 and unlock from the mounting base 10. After the connecting rod 20 rotates relative to the mounting base 10, it locks with the mounting base 10 in one of the remaining locking positions. After the user releases the connecting rod 20, the connecting rod 20 remains locked to the mounting base 10 under the action of the elastic member 40, and the position of the spray head 30 is relatively stable. In combination with the above, through the spraying device 100, the position adjustment of the nozzle 30 is simple and convenient, which is convenient for user operation.

[0078] Combine Figure 4-Figure 6 In this embodiment, a mating portion 21 and a mounting portion 22 are provided at each end of the connecting rod 20. The mating portion 21 mates with the mounting base 10, while the mounting portion 22 connects to the spray head 30. Specifically, the connecting rod 20 includes mounting screws 26, and the spray head 30 is mounted on the mounting portion 22 via a plurality of mounting screws 26. Generally, the connecting rod 20 has a certain length. In this way, when the connecting rod 20 rotates a relatively small angle relative to the mounting base 10, the spray head 30 can produce a relatively large displacement, which is convenient for adjustment.

[0079] Combine Figure 5 In this embodiment, the mounting base 10 is provided with a mounting column 13 (see Figure 7 ), the mating portion 21 is provided with a mating hole 213 (see Figure 10 ), the mounting post 13 can be rotatably engaged with the engaging hole 213, and the engaging portion 21 can move axially and swing radially along the mounting post 13.

[0080] As can be understood, the arrangement of the mounting post 13 and the mating hole 213 allows for stable rotation of the mating portion 21 and the mounting base 10. Furthermore, the mating portion 21 can swing radially relative to the mounting post 13, which facilitates user unlocking and locking of the mating portion 21 and the mounting base 10. The axial movement of the mating portion 21 relative to the mounting post 13 also facilitates user operation to a certain extent. After the mating portion 21 and the mounting base 10 are unlocked, the user can rotate the connecting rod 20, causing the mating portion 21 to rotate about the mounting post 13, thereby achieving relative rotation of the mating portion 21 and the mounting base 10.

[0081] Combine Figure 5In this embodiment, at least a portion of the mounting post 13 is a frustum, so that as the mating portion 21 gradually approaches the mounting seat 10 , the mounting post 13 and the mating hole 213 are gradually clamped.

[0082] Understandably, Figure 5 In the figure, the part where the mounting post 13 is connected to the mounting seat 10 is a frustum, and the part where the mounting post 13 is away from the mounting seat 10 is a cylinder. After the matching hole 213 is fitted on the cylinder, it continues to be fitted on the frustum under the action of the elastic member 40. As the outer diameter of the frustum gradually increases, gradual clamping is achieved.

[0083] In this embodiment, the spraying device 100 further includes a connecting member 50 , which is connected to the end of the mounting post 13 to limit the matching portion 21 .

[0084] It can be understood that due to the presence of the elastic member 40, under normal circumstances, under the action of the elastic force of the elastic member 40, the mating portion 21 is difficult to separate from the mounting seat 10. In order to further prevent the mating portion 21 from separating from the mounting seat 10, a connecting member 50 is provided at the end of the mounting column 13, which can limit the mating portion 21 and prevent it from separating from the mounting seat 10.

[0085] Combine Figure 5 In this embodiment, the elastic member 40 is a spring, which is sleeved on the mounting column 13 , and one end of the elastic member 40 abuts or connects with the matching portion 21 , and the other end of the elastic member 40 abuts or connects with the connecting member 50 .

[0086] It can be understood that the spring is a compression spring. Figure 5 In the assembled state, the spring is in a compressed state, one end of the spring is stopped by the connecting member 50, and the other end applies pressure to the matching portion 21, so that the matching portion 21 is close to the mounting seat 10, so that the locking of the matching portion 21 and the mounting seat 10 is more secure.

[0087] It should be noted that in other embodiments, the spring can also be a tension spring, for example, one end of which is fixed to the mating portion 21 and the other end is fixed to the mounting base 10, and the two are locked by tension. Of course, the elastic member 40 can also be a spring, a rubber member, etc.

[0088] Combine Figure 5 In this embodiment, the end of the mounting post 13 is provided with a threaded hole 131 (see Figure 7 ), the connecting member 50 is screwed to the mounting post 13 through the threaded hole 131.

[0089] It can be understood that the connecting member 50 can be equivalent to a special-shaped screw, that is, it is a combination of a screw 51 and a stop plate 52. The stop plate 52 is provided at the tail of the screw 51, so that when the screw 51 is engaged with the threaded hole 131, one end of the elastic member 40 can abut against the stop plate 52.

[0090] Combine Figure 5 In this embodiment, the mating portion 21 is provided with a fixing ring 214 around the mating hole 213 (see Figure 6 ), a fixing ring 214 is sleeved on one end of the elastic member 40 away from the connecting member 50.

[0091] The fixing ring 214 is provided to facilitate installation of the elastic member 40 and prevent the elastic member 40 from shifting during use, thereby preventing the operation from being affected.

[0092] Combine Figure 5 In this embodiment, at least a portion of the fixing ring 214 is spaced apart from the mounting post 13 so as to give way when the mating portion 21 swings relative to the mounting post 13 .

[0093] Understandably, Figure 5 As shown in the relative position description, the left end of the fixing ring 214 is spaced apart from the mounting column 13, and the fixing ring 214 is trumpet-shaped at the left end. In this way, when the connecting rod 20 is pulled, the matching portion 21 is facilitated to move, thereby unlocking the matching portion 21 and the mounting seat 10.

[0094] Combine Figures 6-10 The specific situations of unlocking and locking the above-mentioned matching portion 21 and the mounting seat 10 will be described in detail below.

[0095] Combine Figure 7 and Figure 10 The mounting seat 10 is provided with at least one first positioning portion 11, and the matching portion 21 is provided with at least two second positioning portions 211; wherein the first positioning portion 11 is used to engage with different second positioning portions 211 so that the matching portion 21 and the mounting seat 10 are locked in different locking positions.

[0096] Specifically, there are six first positioning portions 11 and eight second positioning portions 211. In this embodiment, the first positioning portions 11 are positioning posts and the second positioning portions 211 are positioning holes. Furthermore, the six first positioning portions 11 are spaced apart and distributed circumferentially. The different engagement positions of the six first positioning portions 11 and the eight second positioning portions 211 allow for three locking positions between the mating portion 21 and the mounting base 10. It is understood that the six first positioning portions 11 can be numbered 1, 2, 3, 4, 5, and 6, and the eight second positioning portions 211 can be numbered A, B, C, D, E, F, G, and H.

[0097] Case 1: When numbers 1, 2, 3, 4, 5, and 6 are engaged with numbers A, B, C, D, E, and F respectively, the matching portion 21 and the mounting seat 10 are in the first locking position.

[0098] Case 2: When numbers 1, 2, 3, 4, 5, and 6 are engaged with numbers B, C, D, E, F, and G respectively, the matching portion 21 and the mounting seat 10 are in the second locking position.

[0099] Case 3: When numbers 1, 2, 3, 4, 5, and 6 are engaged with numbers C, D, E, F, G, and H respectively, the matching portion 21 and the mounting seat 10 are in the third locking position.

[0100] In this way, when the six first positioning portions 11 and the eight second positioning portions 211 are respectively engaged, for example, in the first locked position, at this time, the six first positioning portions 11 and the eight second positioning portions 211 can be disengaged by pulling the connecting rod 20, and then the connecting rod 20 can be rotated (for example, clockwise) so that the six first positioning portions 11 and the eight second positioning portions 211 are aligned again, and the aligned position is different from the previous locked position. At this time, the connecting rod 20 is released, and under the action of the elastic member 40, the six first positioning portions 11 and the eight second positioning portions 211 are engaged again, and can be in the second locked position. Similarly, by pulling the connecting rod 20 again, rotating the connecting rod 20 again (for example, clockwise), and releasing the connecting rod 20 again, the matching portion 21 and the mounting seat 10 can be in the third locked position.

[0101] Of course, if the number of first positioning portions 11 and second positioning portions 211 is different, the corresponding locking positions will also be different. For example, if there is one first positioning portion 11 and eight second positioning portions 211, eight locking positions can be achieved. Alternatively, if there are two first positioning portions 11 and five second positioning portions 211, four locking positions can be achieved. Therefore, this embodiment does not limit the number of first positioning portions 11 and second positioning portions 211, as long as the number of locking positions that can be achieved by the mating portion 21 and the mounting base 10 is greater than two.

[0102] As those skilled in the art will appreciate, similarly, in certain embodiments, the mounting base 10 may be provided with at least two first positioning portions, and the mating portion 21 may be provided with at least one second positioning portion; wherein the second positioning portion is configured to engage with different first positioning portions to lock the mating portion 21 and the mounting base 10 in different locking positions. For example, the first positioning portion may be a positioning hole, and the second positioning portion may be a positioning post. In other words, by swapping the positions of the positioning post and the positioning hole, the mating portion 21 and the mounting base 10 can also be locked in different locking positions.

[0103] It should be noted that, in this embodiment, the first positioning portion 11 and the second positioning portion 211 use the engagement (plug-in fit) of holes and columns to achieve a locking effect. In other embodiments, the first positioning portion 11 and the second positioning portion 211 may also use a strong magnetic structure, and the two are fixed together by magnetic attraction when they are close to each other.

[0104] Alternatively, another convenient operation method may be employed, where both the first positioning portion 11 and the second positioning portion 211 are positioning teeth. For example, both may be meshing arcuate teeth, where the meshing of the arcuate teeth locks the mating portion 21 and the mounting seat 10, and the disengagement of the arcuate teeth unlocks the mating portion 21 and the mounting seat 10.

[0105] Combine Figure 7 In this embodiment, at least a portion of the positioning post is a frustum, so that the positioning post and the positioning hole are gradually clamped together during the process of gradually inserting the positioning post into the positioning hole.

[0106] Specifically, Figure 7 In the embodiment, the positioning post is in the form of a truncated cone, and its outer wall is a conical surface, which has a guiding function and guides it to be inserted into the positioning hole. At the same time, under the action of the elastic member 40, the positioning post is clamped in the positioning hole to avoid shaking during use.

[0107] Combine Figure 7 In this embodiment, there are multiple first positioning portions 11, and the multiple first positioning portions 11 are spaced apart along the circumferential direction. Specifically, the six first positioning portions 11 are not arranged to completely cover the circumference, but rather to cover approximately half a circle, and the remaining half of the circle is not provided with a first positioning portion 11.

[0108] At the same time, combined Figure 7 In this embodiment, the mounting base 10 is further provided with a limiting ring 12. At least a portion of the mating portion 21 is limited within the limiting ring 12. Furthermore, the limiting ring 12 and the plurality of first positioning portions 11 are arranged concentrically, and the plurality of first positioning portions 11 are located within the limiting ring 12. Thus, the limiting ring 12 can limit the rotation of the mating portion 21 to a certain extent, providing a better rotation feel.

[0109] At the same time, combined Figure 7 The six first positioning portions 11 (positioning columns) surround the outer circumference of the mounting column 13 , and the limiting ring 12 surrounds the outer circumference of the six first positioning portions 11 , and the three are distributed in concentric circles.

[0110] In the above, combined Figure 7 and Figure 8 The mounting base 10 is provided with two ears 101 . Generally, the ears 101 are mounted to the end of the machine arm 202 by fasteners.

[0111] In this embodiment, combined with Figure 9 and Figure 10 The connecting rod 20 is provided with a stop surface 241 , and the stop surface 241 is used to be stopped by the limiting ring 12 when the matching portion 21 is unlocked from the mounting seat 10 .

[0112] Combine Figure 5 ,by Figure 5 The relative position description in the figure shows that when the mating part 21 and the mounting seat 10 are unlocked, the stop surface 241 (upper end) of the connecting rod 20 abuts against the end surface (upper end) of the limiting ring 12. This position can act as a fulcrum. Therefore, after the mating part 21 and the mounting seat 10 are unlocked, when the mating part 21 needs to be rotated, the existence of the fulcrum makes it easier for the user to apply force to drive the mating part 21 to rotate relative to the mounting seat 10.

[0113] Combine Figure 9 and Figure 10 In this embodiment, the connecting rod 20 includes a rod body 23, one end of the rod body 23 forms a mounting portion 22, the other end of the rod body 23 forms an assembly portion 24, the matching portion 21 is clamped in the assembly portion 24, and the matching portion 21 is used to limit the end face of the partially protruding assembly portion 24 within the limiting ring 12, and the end face forms a stop surface 241.

[0114] It can be understood that the end cross-section of the assembly portion 24 is larger than the end face cross-section of the matching portion 21 , so that the end face of the assembly portion 24 forms a stop face 241 .

[0115] Combine Figure 10 In this embodiment, the material of the assembly portion 24 is a soft material, and the matching portion 21 is formed in the assembly portion 24 by embedded processing.

[0116] The material of the assembly portion 24 is relatively soft, so it can play a certain buffering role and also play a certain protective role for the matching portion 21. During the thermoplastic molding process, the assembly portion 24 can wrap the matching portion 21, so that the matching portion 21 is embedded in the assembly portion 24.

[0117] Combine Figure 10 In this embodiment, the matching portion 21 is provided with a weight-reducing hole 212 .

[0118] Specifically, the weight-reducing holes 212 are arc-shaped holes and are distributed concentrically with the plurality of second positioning portions 211 (positioning holes), which results in a well-symmetrical structure. It is understandable that the rotation angle of the mating portion 21 relative to the mounting base 10 is limited to a certain extent. Therefore, by providing weight-reducing holes 212 at positions where the second positioning portions 211 (positioning holes) are not required, the overall structure can be made more symmetrical, while reducing material and costs. Of course, weight-reducing holes can also be provided at other positions of the mating portion 21, or at other positions of the connecting rod 20, such as the mounting portion 22 or the rod body 23.

[0119] Combine Figure 5 and Figure 10 In this embodiment, the matching portion 21 is generally a sleeve structure, and the connecting member 50, the elastic member 40 and most of the mounting column 13 are located in the sleeve. Figure 5 The left end of the mating portion 21 is completely open to facilitate the installation of the elastic member 40 and the connecting member 50, and the right end is basically closed except for the mating hole 213. The second positioning portion 211 (positioning hole) and the weight-reducing hole 212 mentioned above are both opened on the end surface of the right end and are both blind holes.

[0120] Combine Figure 11 In this embodiment, the mounting base 10 is provided with an indicator mark 14, and the connecting rod 20 is provided with a gear mark 25. The gear mark 25 corresponds to the indicator mark 14 to represent the relative rotation angle between the matching portion 21 and the mounting base 10.

[0121] It is understandable that a scale is provided on the upper end of the connecting rod 20 , for example, on the assembly portion 24 , to indicate the gear position (ie, the angular gear position information required by the work task).

[0122] In this embodiment, six first positioning portions 11 and eight second positioning portions 211 can constitute three gears. Figure 11 In one embodiment, the indicator mark 14 is represented by an arrow, and the gear mark 25 is represented by an arc scale. The arrow points to the gear position of the connecting rod 20, and can also represent the angle of rotation of the connecting rod 20 relative to the mounting base 10. For example, Figure 11 In the figure, the arrow points to the "0" gear position, indicating that the connecting rod 20 is in a vertical state at this time. If the arrow points to the "1" gear position, it means that the connecting rod 20 is tilted forward 30° at this time. If the arrow points to the "-1" gear position, it means that the connecting rod 20 is tilted backward 30° at this time. Of course, when the number of gears is large enough, more ways of adjustment can be achieved. In addition, taking the structure of this embodiment as an example, during installation, if after installation, the arrow points to the "-1" gear position, the connecting rod 20 is in a vertical state, then it can be understood that if the arrow points to the "0" gear position, it means that the connecting rod 20 is tilted forward 30° at this time. If the arrow points to the "1" gear position, it means that the connecting rod 20 is tilted forward 60° at this time. It should be noted that the form of the indicator mark 14 and the gear mark 25 is not limited to Figure 11 In the method shown in , in other embodiments, any method can be used as long as it can help users to operate quickly.

[0123] Generally, when wind speeds are high in the operating area, the connecting rod 20 should not be tilted too far forward or backward, as this can easily cause the sprayed liquid to drift outside the operating area. Therefore, it is generally recommended that the user adjust the gear position to "-1," "0," or "1." This setting facilitates user operation.

[0124] According to a spraying device 100 provided in this embodiment, the installation process of the spraying device 100 is as follows:

[0125] S1: Mount the ear 101 of the mounting base 10 to the end of the machine arm 202 via fasteners.

[0126] S2: Fit the fitting hole 213 on the fitting portion 21 of the connecting rod 20 onto the mounting post 13 of the mounting seat 10 .

[0127] S3: Engage the second positioning portion 211 on the matching portion 21 with the first positioning portion 11 on the mounting seat 10 (insert the positioning post into the positioning hole to achieve locking of the matching portion 21 and the mounting seat 10).

[0128] S4: The elastic member 40 is mounted on the mounting post 13 , with one end of the elastic member 40 being mounted outside the fixing ring 214 of the matching portion 21 .

[0129] S5 : Screw the connecting member 50 into the threaded hole 131 of the mounting post 13 , so that the other end of the elastic member 40 abuts against the connecting member 50 .

[0130] According to an aircraft 1000 provided in this embodiment, the working principle of the aircraft 1000 is as follows:

[0131] After the spraying device 100 is assembled on the machine arm 202, the matching portion 21 and the mounting base 10 are in a locked state. Figure 1 Move the connecting rod 20 in the left and right directions so that the stop surface 241 on the assembly portion 24 stops against the end surface of the limiting ring 12 ( Figure 5 As shown in FIG), at this time, the first positioning portion 11 on the mounting base 10 and the second positioning portion 211 on the matching portion 21 are released, so that the matching portion 21 and the mounting base 10 are unlocked. Figure 2 By rotating the connecting rod 20 in the front-back direction, the position of the nozzle 30 can be changed. It can be understood that Figure 2 In the embodiment, the connecting rod 20 is in a vertical state. By rotating the connecting rod 20, the connecting rod 20 can be tilted forward or backward, so that the nozzle 30 moves forward or backward. After the connecting rod 20 is rotated to the appropriate position, the user releases the connecting rod 20. Under the action of the elastic member 40, the second positioning portion 211 on the matching portion 21 re-engages with the first positioning portion 11 of the mounting seat 10, thereby locking the matching portion 21 and the mounting seat 10. Since the matching portion 21 and the mounting seat 10 can be locked by the engagement of the first positioning portion 11 and the second positioning portion 211 before and after the rotation of the connecting rod 20, the position of the nozzle 30 can remain relatively stable before and after the adjustment, and the use effect is better.

[0132] In summary, embodiments of the present invention provide a spray device 100 and an aircraft 1000. The spray device 100 includes a mounting base 10, a connecting rod 20, a nozzle 30, and an elastic member 40. The connecting rod 20 is rotatably coupled to the mounting base 10 and has at least two locking positions. The connecting rod 20 is connected to the nozzle 30, and the nozzle 30 can change position with changes in the position of the connecting rod 20. The elastic member 40 acts on the mounting base 10 and the connecting rod 20, causing the connecting rod 20 to remain locked with the mounting base 10 in one of the locking positions. Thus, when the connecting rod 20 is actuated by an external force, such as when a user pulls the connecting rod 20, the connecting rod 20 can overcome the elastic force of the elastic member 40 and unlock from the mounting base 10. After the connecting rod 20 rotates relative to the mounting base 10, it can be locked with the mounting base 10 in one of the remaining locking positions. After the user releases the connecting rod 20, the connecting rod 20 remains locked to the mounting base 10 under the action of the elastic member 40, and the position of the nozzle 30 is relatively stable. In combination with the above, through the spraying device 100, the position adjustment of the nozzle 30 is simple and convenient, which is convenient for user operation.

[0133] The aircraft 1000 includes the spraying device 100 and has all the functions of the spraying device 100 .

[0134] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A spraying device, characterized in that: include: A mounting seat (10), wherein the mounting seat (10) is provided with a mounting column (13); A connecting rod (20), wherein the connecting rod (20) is provided with a matching hole (213), and the connecting rod (20) and the mounting seat (10) have at least two locking positions; a spray head (30), the spray head (30) being mounted to the connecting rod (20); and an elastic member (40), the elastic member (40) being sleeved on the mounting column (13), the elastic member (40) acting on the mounting seat (10) and the connecting rod (20), the elastic member (40) being used to keep the connecting rod (20) and the mounting seat (10) locked in one of the locking positions; The mounting post (13) can be rotatably engaged with the engaging hole (213), and the connecting rod (20) can be axially moved and radially swung along the mounting post (13); the connecting rod (20) is used to overcome the elastic force of the elastic member (40) and the axial movement of the mounting seat (10) under the action of an external force to achieve unlocking, and after the connecting rod (20) and the mounting seat (10) are radially rotated, the connecting rod (20) and the mounting seat (10) are locked at any of the other locking positions.

2. The spraying device according to claim 1, characterized in that The two ends of the connecting rod (20) are respectively provided with a matching portion (21) and a mounting portion (22); a matching hole (213) is formed in the matching portion (21); the matching portion (21) matches with the mounting seat (10); and the mounting portion (22) is connected to the nozzle (30).

3. The spraying device according to claim 2, characterized in that At least a portion of the mounting post (13) is a frustum, so that the mounting post (13) and the matching hole (213) are gradually clamped together as the matching portion (21) gradually approaches the mounting seat (10).

4. The spraying device according to claim 2, characterized in that The spraying device (100) further comprises a connecting member (50), wherein the connecting member (50) is connected to the end of the mounting column (13) to limit the matching portion (21).

5. The spraying device according to claim 4, characterized in that The elastic member (40) is a spring, one end of the elastic member (40) abuts against or is connected to the matching portion (21), and the other end of the elastic member (40) abuts against or is connected to the connecting member (50).

6. The spraying device according to any one of claims 2 to 5, characterized in that: The mounting seat (10) is provided with at least one first positioning portion (11), and the matching portion (21) is provided with at least two second positioning portions (211); wherein the first positioning portion (11) is used to engage with different second positioning portions (211) so that the matching portion (21) and the mounting seat (10) are locked at different locking positions, or, The mounting seat (10) is provided with at least two first positioning portions (11), and the matching portion (21) is provided with at least one second positioning portion (211); wherein the second positioning portion (211) is used to engage with different first positioning portions (11) so that the matching portion (21) and the mounting seat (10) are locked at different locking positions.

7. The spraying device according to claim 6, characterized in that The mounting seat (10) is further provided with a limiting circular ring (12), and at least a portion of the matching portion (21) is limited within the limiting circular ring (12).

8. The spraying device according to claim 7, characterized in that The connecting rod (20) is provided with a stop surface (241), and the stop surface (241) is used to be stopped by the limiting ring (12) when the matching portion (21) and the mounting seat (10) are unlocked.

9. An aircraft, characterized in that: It comprises a carrier (200) and the spraying device (100) according to any one of claims 1 to 8; The mounting seat (10) of the spraying device (100) is mounted on the carrier (200).

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