Installation components, spraying devices, unmanned equipment, and aircraft

Abstract

This invention discloses an installation assembly, a spraying device, an unmanned device, and an aircraft. The installation assembly includes: a first component; a second component; a female limiting member with an unlocking hole; and a male limiting member, including a male limiting body and a stop block connected to each other. When the male limiting member is in the axially locked position, it is engaged with the female limiting member via the stop block to restrict the axial relative displacement between the first and second components. The stop block can be disengaged from the unlocking hole under external force, thereby disengaging the first and second components. The spraying device includes the aforementioned installation assembly. The unmanned device includes the aforementioned spraying device. The aircraft includes the aforementioned spraying device. The installation assembly, spraying device, unmanned device, and aircraft also facilitate the disassembly of the target component, which can be the main body of the spraying device.

Description

Technical Field

[0001] This invention relates to the field of connection structure technology, and more particularly to installation components, spraying devices, unmanned equipment, and aircraft. Background Technology

[0002] Some equipment requires different types of operational devices to meet various operational needs. For example, unmanned aerial vehicles (UAVs) can be equipped with liquid storage devices, spraying devices, and other operational devices. When flying, UAVs can spray liquids such as pesticides or water to meet the needs of crop growth.

[0003] In related technologies, when a working device is mounted on a piece of equipment, the working device is generally fixed directly to the main body of the equipment by fasteners. The disassembly, maintenance and replacement of the working device are relatively troublesome and cannot meet the needs of rapid installation and disassembly. Summary of the Invention

[0004] One of the objectives of this invention is to provide an installation component that enables quick connection and disassembly between two components.

[0005] The second objective of this invention is to provide a spraying device that enables rapid installation and disassembly of the main body of the device.

[0006] The third objective of this invention is to provide an unmanned device whose spraying device is easy to disassemble, and whose maintenance and replacement are more convenient.

[0007] The fourth objective of this invention is to provide an aircraft whose spraying device is easy to disassemble, and whose maintenance and replacement are more convenient.

[0008] To achieve one of the above objectives, the present invention adopts the following technical solution:

[0009] An installation component includes:

[0010] First component;

[0011] Second component;

[0012] The female limiting member is provided with an unlocking hole; and,

[0013] A male limiting component includes a male limiting body and a stop block that are connected to each other; the male limiting component has an axial locking position that cooperates with the female limiting component;

[0014] When the male limiting member is in the axial locking position, the male limiting body and the stop block are located on opposite sides of the female limiting member, and the stop block abuts against the female limiting member to keep the second component connected to the first component; the stop block can be rotated under external force to be opposite to the unlocking hole and disengage from the unlocking hole, so that the male limiting member is disengaged from the axial locking position, thereby allowing the second component to be disengaged from the first component.

[0015] To achieve the second objective mentioned above, the present invention adopts the following technical solution:

[0016] A spraying device includes the mounting components described above, wherein the first component is a mounting base and the second component is the device body;

[0017] The main body of the device is engaged with the mounting base via an axial locking assembly; the axial locking assembly includes the male limiting member and the female limiting member;

[0018] When the axial locking assembly is in the axial locking state, the main body of the device remains connected to the mounting base; when the axial locking assembly is in the axial unlocking state, the main body of the device can be detached from the mounting base.

[0019] To achieve the third objective mentioned above, the present invention adopts the following technical solution:

[0020] An unmanned device includes a spraying device as described in the above scheme.

[0021] To achieve the fourth objective mentioned above, the present invention adopts the following technical solution:

[0022] An aircraft comprising a spraying device as described above.

[0023] The beneficial effects of this invention are: in this mounting assembly, the cooperation of male and female limiting parts can achieve a reliable connection and quick disassembly between the two components;

[0024] This spraying device allows for easy removal of the main unit from the mounting base, facilitating replacement and maintenance of the device and providing a better user experience.

[0025] The unmanned equipment and the aircraft adopt the above-mentioned spraying device, which is easy to disassemble, replace and maintain, resulting in a better user experience. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a schematic diagram of the structure of the aircraft described in an embodiment of the present invention;

[0028] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0029] Figure 3 This is one of the exploded structural diagrams of the installation components and the spraying device according to an embodiment of the present invention;

[0030] Figure 4 This is one of the structural schematic diagrams of the mounting base according to an embodiment of the present invention;

[0031] Figure 5 This is a second schematic diagram of the structure of the mounting base according to one embodiment of the present invention;

[0032] Figure 6 This is one of the structural schematic diagrams of the device body according to an embodiment of the present invention;

[0033] Figure 7 This is a second schematic diagram of the structure of the device body according to one embodiment of the present invention;

[0034] Figure 8 This is one of the structural schematic diagrams of the public limiting member according to an embodiment of the present invention;

[0035] Figure 9 This is a second schematic diagram of the structure of the male limiting member according to one embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram of the structure of the female limiting member according to one embodiment of the present invention;

[0037] Figure 11 This is one of the assembly schematic diagrams of the spraying device according to an embodiment of the present invention;

[0038] Figure 12 for Figure 11 Enlarged view of part B in the image;

[0039] Figure 13 This is a second assembly schematic diagram of the spraying device according to one embodiment of the present invention;

[0040] Figure 14 This is a schematic diagram of the installation component according to one embodiment of the present invention;

[0041] Figure 15 This is a schematic diagram of the installation component according to another embodiment of the present invention;

[0042] Figure 16 This is a schematic diagram of the installation component according to another embodiment of the present invention;

[0043] Figure 17 This is a schematic diagram of the installation component according to another embodiment of the present invention;

[0044] Figure 18This is one of the exploded structural diagrams of the spraying device according to another embodiment of the present invention;

[0045] Figure 19 This is a second exploded structural diagram of the spraying device according to another embodiment of the present invention;

[0046] Figure 20 This is a schematic diagram of the structure of the mounting base according to another embodiment of the present invention;

[0047] Figure 21 This is a schematic diagram of the structure of the device body according to another embodiment of the present invention;

[0048] Figure 22 for Figure 21 Enlarged view of section C in the image;

[0049] Figure 23 This is a schematic diagram of the structure of the female limiting member according to another embodiment of the present invention;

[0050] Figure 24 This is an assembly diagram of the spraying device according to another embodiment of the present invention;

[0051] Figure 25 This is an exploded view of the spraying device according to another embodiment of the present invention;

[0052] Figure 26 This is one of the structural schematic diagrams of the male limiting member of the spraying device according to another embodiment of the present invention;

[0053] Figure 27 This is a second schematic diagram of the structure of the male limiting member of the spraying device according to another embodiment of the present invention;

[0054] Figure 28 for Figure 27 Enlarged view of part D in the image;

[0055] Figure 29 This is one of the structural schematic diagrams of the mounting base of the spraying device according to another embodiment of the present invention;

[0056] Figure 30 for Figure 29 Enlarged view of part E in the image;

[0057] Figure 31 This is a second schematic diagram of the structure of the mounting base of the spraying device according to another embodiment of the present invention;

[0058] Figure 32 for Figure 31 Enlarged view of part F in the image;

[0059] Figure 33 This is one of the assembly schematic diagrams of the spraying device according to another embodiment of the present invention;

[0060] Figure 34 This is a second assembly schematic diagram of the spraying device according to another embodiment of the present invention.

[0061] In the diagram: 10. First component; 11. First mounting groove; 12. First assembly part; 1211. First connecting hole; 12111. Inner wall of connecting hole; 1212. First clearance hole; 122. First limiting structure; 13. Limiting component mounting groove; 131. Second positioning structure; 132. Third positioning structure; 133. Fourth limiting structure; 134. Inner protrusion; 14. Butt joint; 20. Second component; 201. Spray bar; 2011. Cylinder mounting hole; 202. Nozzle; 203. Sleeve; 2031. Flange; 22. Second mounting groove; 23. Second assembly part; 231. Second connecting hole; 232. Second limiting structure; 24. Fixing part; 41. Male limiting component; 411. Male limiting body; 4111. First positioning structure; 4112. Third limiting structure; 4114. Limiting plate; 41141. Axial limiting groove; 412. Connecting post; 413. Stop block; 4132. Mating protrusion; 414. Knob part; 42. Female limiting component; 421. Stop groove; 4213. Mating recess; 422. Unlocking hole; 423. Mating hole; 50. Elastic component; 70. Rear cover; 71. Cover buckle part; 800. Aircraft; 81. Fuselage; 82. Arm; 83. Liquid storage container; 84. Battery; 85. Landing gear. Detailed Implementation

[0062] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0063] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0064] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0065] This invention Figure 2 , Figure 3 , Figure 18 The dotted line is used to indicate the axial direction of the component.

[0066] Aircraft 800 (such as drones) often need to carry various operational devices for agricultural operations, such as spraying pesticides or water to meet the growth needs of crops. In related technologies, the spraying device is relatively fixed relative to the fuselage 81 of the aircraft 800. The angle of the spraying device cannot be adjusted, and the spraying device cannot adapt to different flight attitudes of the aircraft 800, thus failing to achieve the best spraying effect and limiting its applicability. Furthermore, the spraying device is cumbersome to disassemble and inconvenient to maintain.

[0067] In the field of UAV 800, additional operational equipment is needed to meet the operational requirements of UAV 800 in areas such as plant protection, aerial photography, environmental management, surveying and mapping, power line inspection, and forest fire prevention. Other unmanned equipment also requires the integration of different operational equipment to perform tasks. For example, for agricultural unmanned vehicles, spraying devices can be mounted on the vehicle body; for unmanned vessels, baiting devices can be mounted on the hull. In related technologies, when operational devices are mounted on the main body of the equipment, the angle of the operational devices is generally not easily adjustable, and the devices are not easily disassembled, repaired, or replaced.

[0068] In view of this, the present invention proposes an installation component that can solve the above problems, enabling both relative rotation between the two components and rapid disassembly between them. Through the cooperation of the male limiting member 41 and the female limiting member 42, a reliable connection between the two components can be maintained without the action of external force.

[0069] This mounting component can be applied to working devices. When a working device using this mounting component is applied to relevant equipment, the angle of the working device relative to the main body of the equipment is easy to adjust, and the working device is also easy to disassemble from the main body of the equipment.

[0070] When this installation component is applied to an operating device, the operating device can be, but is not limited to, a spraying device, a seeding device, a sound information acquisition device, an airflow information acquisition device, an image acquisition device, a feeding device, etc.

[0071] When this mounting component is used in a spraying device, it facilitates the adjustment of the angle of the nozzle 202 relative to the mounting base and the main body of the equipment, thus broadening its applicability. Furthermore, the spraying device is easy to disassemble and maintain.

[0072] The spraying device using this mounting component can be applied to unmanned equipment, which can be, but is not limited to, unmanned aerial vehicles 800. The spraying device using this mounting component can also be applied to manned and cargo-carrying aircraft 800.

[0073] When the spraying device using this mounting component is mounted on an agricultural drone, such as an 800-type unmanned aerial vehicle, Figure 1 As shown, the spraying system of the aircraft 800 is equipped with a liquid storage container 83. The liquid to be sprayed is loaded into the liquid storage container 83, and guided by a power mechanism such as a water pump, the liquid is introduced into the spraying device. The spraying device sprays pesticides or water onto the surface of agricultural and forestry crops through the nozzle 202. By adjusting the angle of the nozzle 202, the system can effectively adapt to different flight attitudes of the agricultural drone (flying forward, flying backward), improving the spraying accuracy and spray width, and enhancing the spraying effect.

[0074] The flight attitude of the aircraft 800 affects the spraying effect of the spraying device: When the aircraft 800 is a rotorcraft 800, if the rotor direction is consistent with the direction of the nozzle 202, the liquid sprayed by the nozzle 202 can be sprayed onto the crops along the airflow below the rotor. When the rotor direction is opposite to the direction of the nozzle 202, the spraying path of the nozzle 202 will be obstructed by the airflow below the rotor, causing the liquid sprayed by the spraying device to fail to reach the crops along the preset path. Therefore, when the angle of the spraying device of the aircraft 800 can be adjusted relative to the rotor mechanism, it can effectively adapt to different flight attitudes of the aircraft 800 and ensure the spraying effect.

[0075] Of course, this mounting component can be used not only in spraying devices and other operating equipment, but also in other mechanical devices.

[0076] like Figures 1-34 As shown, in one embodiment of the mounting assembly of the present invention, the mounting assembly includes a first component 10 and a second component 20, the second component 20 cooperating with the first component 10 via a rotation locking assembly, and the second component 20 also cooperating with the first component 10 via an axial locking assembly;

[0077] The second component 20 has a fixed state in which it remains connected to the first component 10 and cannot rotate relative to the first component 10; when the second component 20 is in the fixed state:

[0078] When the rotation locking assembly is in the locked state, the second member 20 and the first member 10 are in at least one rotation locking position. The rotation locking assembly restricts the relative rotation between the second member 20 and the first member 10, that is, it limits the relative angle between the second member 20 and the first member 10, and the second member 20 cannot rotate relative to the first member 10. In addition, when the axial locking assembly is in the locked state, the axial locking assembly restricts the second member 20 and the first member 10 from disengaging from each other along the axial direction, that is, the second member 20 and the first member 10 cannot disengage from each other, and the two remain connected.

[0079] The second component 20 has an angle-adjustable state that maintains connection with the first component 10 and is rotatable relative to the first component 10; when the second component 20 is in the angle-adjustable state:

[0080] The rotation locking assembly is in the unlocked state, the axial locking assembly is in the locked state, the second component 20 is disengaged from the first component 10 in the rotation locking position, the second component 20 can rotate relative to the first component 10 to adjust the relative angle between the second component 20 and the first component 10; and the axial locking assembly is in the locked state.

[0081] The second component 20 is in a disassembled state, detached from the first component 10 along the axial direction; when the second component 20 is in the disassembled state:

[0082] When the axial locking assembly is in the unlocked state, the second component 20 and the first component 10 can move away from each other axially until the second component 20 and the first component 10 are disengaged. In this embodiment, the axial locking assembly includes a male limiting member 41 and a female limiting member 42; the female limiting member 42 is provided with an unlocking hole 422, and the male limiting member 41 includes a male limiting body 411 and a stop block 413 connected to each other;

[0083] The male limiting member 41 has an axial locking position that cooperates with the female limiting member 42;

[0084] When the male limiter 41 is in the axial locking position, the male limiter body 411 and the stop block 413 are located on opposite sides of the female limiter 42. The stop block 413 abuts against the female limiter 42 to restrict the second component 20 and the first component 10 from moving away from each other in the axial direction, so that the second component 20 and the first component 10 remain connected. The male limiter 41 and the female limiter 42 can rotate relative to each other under the action of external force, so that the stop block 413 rotates under the action of external force to be opposite to the unlocking hole 422 and disengages from the unlocking hole 422, thereby causing the male limiter 41 to disengage from the axial locking position and causing the axial locking assembly to disengage from the locking state.

[0085] In this embodiment, the second component 20 can be adjusted to different rotation locking positions according to actual needs to adjust the relative angle between the second component 20 and the first component 10; and, through the cooperation of the male limiting member 41 and the female limiting member 42, the relative fixation between the second component 20 and the first component 10 can be maintained, and the rotation locking between the second component 20 and the first component 10 can be maintained without external force.

[0086] The installation components of this embodiment can be applied to operating devices, which can be, but are not limited to, spraying devices.

[0087] When mounting components are applied to spraying devices, such as Figure 1 , Figure 2 As shown, the first component 10 is a mounting base, and the second component 20 is the main body of the device. The spraying device can be installed by mounting the mounting base onto the equipment body. The main body of the device is used to connect with the liquid storage device for spraying liquid or water. The main body of the device can be held in a rotating locked position connected to the mounting base with the cooperation of the rotating locking component and the axial locking component. When the main body of the device is held in a rotating locked position, the relative angle between the main body of the device and the mounting base is fixed, and the spraying device can spray medicine, water, etc. in a preset direction. When it is necessary to adjust the spraying direction of the spraying device, the main body of the device can be adjusted to another rotating locked position. When it is necessary to disassemble the main body of the device for storage, maintenance or replacement, it is only necessary to adjust the male limit member 41 and the female limit member 42 so that the stop block 413 of the male limit member 41 disengages from the female limit member 42.

[0088] Of course, in other embodiments, the working device may also be a solid material dispensing device, an information collection device, etc.

[0089] This mounting assembly not only facilitates the installation of the second component 20, but also allows for easy adjustment of its angle and disassembly, maintenance, and replacement. Its simple overall structure makes it widely applicable. When used in a spraying device, this assembly enables the installation of the main body of the device with spraying function, facilitates angle adjustment, and allows for easy disassembly, maintenance, and replacement.

[0090] Based on the structure of the mounting assembly of the present invention, the first component 10, the second component 20, the male limiting member 41, and the female limiting member 42 can be configured in at least the following ways to achieve the locking engagement between the male limiting member 41 and the female limiting member 42, thereby limiting the axial relative displacement between the first component 10 and the second component 20 and holding the second component 20 in a rotationally locked position:

[0091] Method 1: For example Figures 2 to 13 As shown, Figure 16As shown, the male limiting member 41, the first component 10, the second component 20 and the female limiting member 42 are arranged in sequence. When the male limiting member 41 is in the axial locking position, the first component 10, the second component 20 and the female limiting member 42 are clamped between the male limiting body 411 and the stop block 413.

[0092] Method 2: For example Figure 17 As shown, the male limiting member 41, the second component 20, the first component 10 and the female limiting member 42 are arranged in sequence. When the male limiting member 41 is in the axial locking position, the second component 20, the first component 10 and the female limiting member 42 are clamped between the male limiting body 411 and the stop block 413.

[0093] Method 3: Please refer to Figure 14 As shown, the male limiting member 41 is integrally set or fixedly connected to the second component 20;

[0094] The second component 20, the first component 10, and the female limiting component 42 are arranged in sequence. When the male limiting component 41 is in the axial locking position, the stop block 413 abuts against the side of the female limiting component 42 away from the first component 10, and the first component 10 and the female limiting component 42 are clamped between the second component 20 and the stop block 413.

[0095] Method 4: Please refer to Figure 15 As shown, the male limiting body 411 is integrally disposed or fixedly connected to the first component 10;

[0096] The first component 10, the second component 20, and the female limiting component 42 are arranged in sequence. When the male limiting component 41 is in the axial locking position, the stop block 413 abuts against the side of the female limiting component 42 away from the second component 20, and the second component 20 and the female limiting component 42 are clamped between the first component 10 and the stop block 413.

[0097] Method 5: Not shown in the attached drawings of this embodiment; the female limiting member 42 is integrally provided with the first component 10, that is, the first component 10 is provided with an unlocking hole 422, and the first component 10 is used as the female limiting member 42;

[0098] The male limiting member 41, the second component 20 and the first component 10 are arranged in sequence. When the male limiting member 41 is in the axial locking position, the stop block 413 abuts against the side of the first component 10 away from the second component 20, and the second component 20 is clamped between the male limiting body 411 and the first component 10.

[0099] Method 6: Not shown in the attached drawings of this embodiment; the female limiting member 42 is integrally provided with the second component 20, that is, the second component 20 is provided with an unlocking hole 422, and the second component 20 is used as the female limiting member 42;

[0100] The male limiting member 41, the first component 10 and the second component 20 are arranged in sequence. When the male limiting member 41 is in the axial locking position, the stop block 413 abuts against the side of the second component 20 away from the first component 10, and the first component 10 is clamped between the male limiting body 411 and the second component 20.

[0101] In one embodiment of the mounting assembly of the present invention, in order to enable the stop block 413 to engage with the side of the female limiting member 42 away from the male limiting body 411, so as to hold the male limiting member 41 in the axial locking position, the male limiting member 41 in the axial locking assembly is configured as follows:

[0102] like Figure 8 , Figure 9 , Figure 21 , Figure 22 , Figure 27 As shown, the male limiting member 41 also includes a connecting post 412. The two ends of the connecting post 412 are connected to the male limiting body 411 and the stop block 413, respectively. The stop block 413 protrudes radially relative to the connecting post 412. The side of the stop block 413 close to the male limiting body 411 forms a first engaging surface. The side of the female limiting member 42 away from the male limiting body 411 forms a second engaging surface. When the male limiting member 41 is in the axial locking position, the first engaging surface abuts against the second engaging surface.

[0103] In this embodiment, by setting a connecting post 412, a certain insertion gap is formed between the stop block 413 and the male limiting body 411. The stop block 413 protrudes radially relative to the connecting post 412, so that the stop block 413 provides a snap-fit ​​surface that can be snapped with the female limiting member 42. This facilitates the snapping of the female limiting member 42 between the male limiting body 411 and the stop block 413, thereby achieving the abutment between the stop block 413 and the female limiting member 42, and thus keeping the male limiting member 41 and the female limiting member 42 in an axially locked position.

[0104] In this embodiment, the connection between the male limit body 411 and the stop block 413 can be achieved through a simple connecting column 412 structure. The connecting column 412 does not occupy much space, which is conducive to the miniaturization and compact design of the overall structure.

[0105] In other embodiments, in order to achieve the connection between the stop block 413 and the male limit body 411, an annular protrusion can be directly provided on the outer periphery of the male limit body 411, and the stop block 413 can be connected to the annular protrusion.

[0106] In one embodiment of the mounting assembly of the present invention, in order to ensure the reliability of the axial locking between the male limiting member 41 and the female limiting member 42, based on the structure of the male limiting member 41 with a connecting post 412, the male limiting member 41 is configured in the following manner:

[0107] The male limiting member 41 includes a connecting post 412 and at least two stop blocks 413. One end of the connecting post 412 is connected to the male limiting body 411, and a plurality of stop blocks 413 are connected to the end of the connecting post 412 away from the male limiting body 411, and the stop blocks 413 are spaced apart along the circumference of the connecting post 412.

[0108] Correspondingly, the female limiting member 42 is provided with at least two unlocking holes 422 and at least two second engaging surfaces. For example, Figure 8 , Figure 9 , Figure 12 , Figure 18 , Figure 19 , Figure 20 , Figure 21 As shown, the limiting component 41 is provided with four stop blocks 413; as Figure 10 , Figure 23 As shown, the female limiting member 42 is provided with four unlocking holes 422.

[0109] In this embodiment, by setting multiple stop blocks 413 on a single male limiting member 41, when the male limiting member 41 is in the axial locking position, it can abut against the female limiting member 42 through the first snap-fit ​​surface with a larger total area, thereby increasing the reliability of axial locking. Furthermore, the multiple stop blocks 413 are arranged at intervals along the circumference, which can realize the cooperation between the stop blocks 413 and the female limiting member 42 from multiple directions, ensuring the reliability of axial locking. In addition, the multiple stop blocks 413 are connected to the same connecting post 412, which can ensure a compact and simple structure.

[0110] In this embodiment, the connecting post 412 is located in the middle of the male limiting body 411.

[0111] In this embodiment, based on the connection post 412 provided in the male limiting member 41, in order to ensure the effective cooperation between the male limiting member 41 and the female limiting member 42, the female limiting member 42 is configured in the following manner:

[0112] The female limiting member 42 is provided with a mating hole 423 that connects to the unlocking hole 422; when the male limiting member 41 is in the axial locking position, the connecting post 412 passes through the mating hole 423, and the stop block 413 abuts against the second locking surface.

[0113] By configuring the mating hole 423 connected to the unlocking hole 422 in the female limiting member 42, when the male limiting member 41 and the female limiting member 42 are mated, the connecting post 412 and the mating hole 423 are mated, which not only serves as a clearance function to ensure that the stop block 413 can pass through or exit the unlocking hole 422 according to actual needs, but also serves as a relative rotation positioning function between the male limiting member 41 and the female limiting member 42.

[0114] In this embodiment, in order to match the male limiting member 41 which has a plurality of stop blocks 413 distributed circumferentially, the female limiting member 42 has a plurality of unlocking holes 422. In the radial direction, the unlocking holes 422 are located outside the mating holes 423; in the circumferential direction, the unlocking holes 422 are spaced apart, and the second snap-fit ​​surface is formed between adjacent unlocking holes 422.

[0115] In other embodiments, a connecting post 412 may also be configured between each stop block 413 and the male limit body 411 for the male limit member 41.

[0116] In other embodiments, when the male limiting member 41 is provided with multiple connecting posts 412, the connecting posts 412 can also be connected to the outer peripheral edge of the male limiting body 411.

[0117] In other embodiments, when the male limiting member 41 is provided with multiple connecting posts 412, the female limiting member 42 may also be provided with multiple mating holes 423 accordingly.

[0118] In one embodiment of the mounting assembly of the present invention, in order to improve the reliability of the fit between the male limiting member 41 and the female limiting member 42, the male limiting member 41 and the female limiting member 42 are configured as follows:

[0119] like Figure 10 , Figure 12 , Figure 23 As shown, a stop groove 421 is provided on the side of the female limiting member 42 that is away from the male limiting body 411, and a second engaging surface is formed in the stop groove 421.

[0120] When the male limiter 41 is in the axial locking position, the stop block 413 is engaged in the stop groove 421;

[0121] The stop block 413 cooperates with the stop groove 421 to restrict the degree of freedom of the male limit member 41 and the female limit member 42 to move away from each other in the axial direction. Furthermore, the groove walls on opposite sides of the stop groove 421 in the circumferential direction are in contact with the stop block 413 to restrict the degree of rotational freedom of the male limit member 41 and the female limit member 42 to a certain extent. This ensures that there is a certain relative rotational resistance between the male limit member 41 and the female limit member 42 in the axially locked position, preventing the male limit member 41 from disengaging from the axially locked position due to accidental contact or shaking.

[0122] In this embodiment, in order to ensure a reliable fit between the male limiting member 41 and the female limiting member 42, and to ensure reliable axial locking between the first component 10 and the second component 20, the male limiting member 41 and the female limiting member 42 are configured as follows:

[0123] like Figure 23As shown, the stop groove 421 is provided with a mating recess 4213 and the stop block 413 is provided with a mating protrusion 4132, or the stop groove 421 is provided with a mating protrusion and the stop block 413 is provided with a mating recess 4213.

[0124] When the male limiter 41 is in the axial locking position, the stop block 413 is engaged in the stop groove 421, and the mating protrusion is engaged in the mating recess 4213 to restrict the relative rotation between the male limiter 41 and the female limiter 42.

[0125] In this embodiment, by providing the mating protrusion 4132 on the first or second engaging surface, and correspondingly by providing the mating recess 4213 on the second or first engaging surface, it is ensured that when the stop block 413 and the stop groove 421 approach and engage with each other in the axial direction, the mating protrusion 4132 can directly engage with the mating recess 4213. Thus, through the engagement of the mating protrusion 4132 and the mating recess 4213, the relative rotational freedom between the male limiting member 41 and the female limiting member 42 is restricted.

[0126] In one embodiment of the mounting assembly of the present invention, in order to ensure the reliability of the axial locking between the male limiting member 41 and the female limiting member 42 while facilitating the unlocking operation of the male limiting member 41, the mounting assembly is configured as follows:

[0127] like Figure 3 , Figure 13 , Figure 18 , Figure 19 , Figure 24 , Figure 25 As shown, it also includes an elastic element 50. When the male limiter 41 is in the axial locking position, the elastic element 50 is disposed between the male limiter body 411 and the female limiter 42. The elastic element 50 deforms and accumulates elastic force. The elastic force of the elastic element 50 acts directly or indirectly on the female limiter 42 so that the side of the stop block 413 that is close to the male limiter body 411 is held against the female limiter 42, thereby holding the male limiter 41 in the axial locking position.

[0128] The male limiting member 41 and the female limiting member 42 can overcome the elastic force of the elastic member 50 under the action of external force, so that the stop block 413 can be disengaged from the female limiting member 42.

[0129] In this embodiment, the elastic element 50 is a spring.

[0130] It should be noted that the spring can be either a compression spring or a tension spring.

[0131] In other embodiments, the elastic element 50 may also be a spring sheet or the like.

[0132] When the male limit member 41 is in the axial locking position, and the male limit member 41 is provided with a stop block 413 and the female limit member 42 is provided with a stop groove 421, since the stop block 413 is stuck in the stop groove 421, the male limit member 41 cannot directly rotate around the female limit member 42 to the position where the stop block 413 is opposite to the unlocking hole 422. Therefore, it is necessary to first pull the female limit member 42 towards the side closer to the male limit body 411 against the elastic force, or push the male limit body 411 towards the side closer to the female limit member 42 against the elastic force, so that the stop block 413 can be disengaged from the stop, thereby allowing the stop block 413 to be disengaged from the unlocking hole 422, thus completing the mutual disengagement of the male limit member 41 and the female limit member 42.

[0133] The present invention also proposes a spraying device in which the main body of the device is assembled with a mounting base, the relative angle between the main body of the device and the mounting base is adjustable, and the main body of the device is easily disassembled from the mounting base.

[0134] like Figure 1-34 As shown, in one embodiment of the spraying device of the present invention, the spraying device includes the mounting components in the above embodiments;

[0135] The first component 10 is a mounting base, and the second component 20 is the main body of the device for spraying materials.

[0136] The main body of the device cooperates with the mounting base through a rotation locking assembly and an axial locking assembly; the axial locking assembly includes a male limiting member 41 and a female limiting member 42;

[0137] When the rotary locking assembly is in the rotary locking state, the main body of the device is in the rotary locking position; when the rotary locking assembly is in the rotary unlocking state, the main body of the device can rotate relative to the mounting base.

[0138] When the axial locking assembly is in the axial locking state, the main body of the device remains connected to the mounting base, and the male limit member 41 is located in the axial locking position where the stop block 413 and the female limit member 42 abut against each other; when the axial locking assembly is in the axial unlocking state, the male limit member 41 is located in the axial unlocking position where the stop block 413 and the unlocking hole 422 are opposite, and the main body of the device can be detached from the mounting base.

[0139] In this embodiment, the main body of the device includes a spray bar 201 and a nozzle 202 connected to each other. The spray bar 201 cooperates with the mounting base through a rotation locking component and an axial locking component. Under normal conditions, the axial locking component is in an axially locked state to maintain the connection between the main body of the device and the mounting base. When it is necessary to adjust the orientation of the nozzle 202, an external force is applied to the main body of the device to adjust the rotation locking component to a rotation unlocked state, so as to rotate the main body of the device from one rotation locking position relative to the mounting base to another rotation locking position, thereby adjusting the angle of the nozzle 202.

[0140] In one embodiment of the spraying device of the present invention, in order to lock the main body of the device in a rotational locking position to ensure reliable operation of the main body, and to facilitate the release of the rotational locking position of the main body of the device so as to adjust the angle of the main body of the device relative to the mounting base, thereby meeting various operational requirements of the spraying device, this embodiment configures the rotational locking assembly in the following manner:

[0141] like Figure 4 , Figure 6 , Figure 18 , Figure 19 , Figure 20 , Figure 21 , Figure 25 As shown, the mounting base includes a first assembly part 12, and the main body of the device includes a second assembly part 23; the rotation locking assembly includes a first limiting structure 122 disposed on the first assembly part 12, and also includes a second limiting structure 232 disposed on the second assembly part 23; the second limiting structure 232 is used to cooperate with the first limiting structure 122 to limit the relative rotation between the second assembly part 23 and the first assembly part 12.

[0142] The first assembly part 12 is provided with at least two first limiting structures 122 so that the second limiting structure 232 can cooperate with different first limiting structures 122 to restrict the main body of the device to different rotation locking positions; or, the second assembly part 23 is provided with at least two second limiting structures 232 so that when the first limiting structure 122 can cooperate with different second limiting structures 232, the main body of the device can be located in different rotation locking positions.

[0143] In this embodiment, the second assembly part 23 and the first assembly part 12 are configured to rotate about a rotation axis. Figure 2 , Figure 3 , Figure 18 The dashed line in the diagram is used to indicate the axis of rotation.

[0144] In this embodiment, the central axis of the connecting column 412 is the rotation axis. In this embodiment, when the first assembly part 12 is provided with a plurality of first limiting structures 122, the plurality of first limiting structures 122 are arranged in a circular arrangement around the rotation axis at intervals; when the second assembly part 23 is provided with a plurality of second limiting structures 232, the plurality of second limiting structures 232 are arranged in a circular arrangement around the rotation axis at intervals.

[0145] In one embodiment, one of the first limiting structure 122 and the second limiting structure 232 is a positioning post and the other is a positioning hole. When the device body is installed on the mounting base, the first assembly part 12 and the second assembly part 23 abut against each other, and the positioning post is inserted into the positioning hole. By cooperating with the positioning post and the positioning hole, the rotational freedom between the device body and the mounting base is restricted, and the device body is kept in the rotation lock position.

[0146] In this embodiment, the first limiting structure 122 and the second limiting structure 232 can be configured in at least two ways: the first limiting structure 122 is a positioning post protruding relative to the first assembly part 12 and the second limiting structure 232 is a positioning hole, or the second limiting structure 232 is a positioning post protruding relative to the second assembly part 23 and the first limiting structure 122 is a positioning hole.

[0147] In this embodiment, the positioning pin can be inserted into the positioning hole to achieve rotational locking between the device body and the mounting base. Therefore, if relative rotation between the device body and the mounting base is required, the device body and the mounting base need to be separated axially to allow the positioning pin to disengage from the positioning hole. However, in this embodiment, when the male limiter 41 is in the axial locking position, it restricts the axial relative movement between the device body and the mounting base. Without an external unlocking force acting on the device body, the positioning pin cannot disengage from the positioning hole. Therefore, by using the rotational locking assembly in this embodiment, when the male and female limiters 42 are in the axial locking position, the device body can be held in the rotational locking position. This prevents the device body from disengaging from the rotational locking position due to accidental contact or non-unlocking force, avoids unexpected changes in the spraying direction, and ensures the reliability of the spraying function of the spraying device.

[0148] In other embodiments, the plurality of first limiting structures 122 provided in the first assembly part 12 may be partly positioning pins and partly positioning holes; the plurality of second limiting structures 232 provided in the second assembly part 23 may be partly positioning holes and partly positioning pins; as long as at least two rotational locking positions can be achieved between the device body and the mounting base.

[0149] like Figure 3 As shown, in this embodiment, the main body of the device includes a spray bar 201 and a nozzle 202; one end of the spray bar 201 is a second assembly part 23, and the other end is a fixing part 24, which is connected to the nozzle 202.

[0150] like Figures 3 to 10 As shown, in one embodiment of the spraying device of the present invention, in order to facilitate assembly and manufacturing and adjustment, the male limiting member 41, the female limiting member 42, the mounting base and the main body of the device are divided into several independent structures and then assembled.

[0151] In this embodiment, the spraying device comprises a mounting base, a device body, a male limiting member 41, and a female limiting member 42, arranged as follows:

[0152] When the male limiter 41 is in the axial locking position, the male limiter body 411, the mounting base, the device body and the female limiter 42 are arranged in sequence. The male limiter body 411 abuts against the side of the mounting base away from the female limiter 42, and the stop block 413 abuts against the side of the female limiter 42 away from the device body.

[0153] In other embodiments, the mounting base, device body, male limiting member 41, and female limiting member 42 can also be configured as follows:

[0154] When the male limiter 41 is in the axial locking position, the female limiter 42, the mounting base, the device body and the male limiter body 411 are arranged in sequence. The male limiter body 411 abuts against the side of the device body away from the mounting base, and the stop block 413 abuts against the side of the female limiter 42 away from the mounting base.

[0155] In this embodiment, as Figure 3 , Figure 8 , Figure 9 , Figure 13 As shown, the male limiting member 41 includes a connecting post 412, a male limiting body 411, and a stop block 413, which are respectively disposed at opposite ends of the connecting post 412. Based on the male limiting member 41 including the connecting post 412, in order to facilitate the assembly of the male limiting member 41, the mounting base, the device body, and the female limiting member 42 during the assembly of the spraying device, the male limiting member 41, the mounting base, and the device body are configured as follows:

[0156] The mounting base includes a first assembly part 12, and the device body includes a second assembly part 23. When the device body is in the rotation lock position, the first assembly part 12 and the second assembly part 23 are engaged by a rotation lock assembly.

[0157] like Figure 4 As shown, the rotation locking assembly includes a first connecting hole 1211 provided in the first assembly part 12, such as Figure 6 As shown, the second assembly part 23 is provided with a second connecting hole 231; when the male limiting member 41 is in the axial locking position, the connecting post 412 is inserted into the first connecting hole 1211 and the second connecting hole 231, and the stop block 413 abuts against the side of the female limiting member 42 away from the male limiting body 411.

[0158] In this embodiment, connecting holes are provided in the first assembly part 12 and the second assembly part 23 respectively, through which the connecting post 412 of the male limiting member 41 can pass, ensuring smooth assembly between the male limiting member 41, the mounting base, the device body and the female limiting member 42.

[0159] In this embodiment, as Figure 8 , Figure 9 , Figure 13 As shown, the male limiter 41 also includes a knob part 414 connected to the side of the male limiter body 411 opposite to the connecting post 412. The knob part 414 protrudes relative to the male limiter body 411 to provide the user with finger gripping space and facilitate adjustment of the position of the male limiter 41.

[0160] Based on this embodiment, in order to ensure that the stop block 413 can pass through the first assembly part 12 and the second assembly part 23 when the connecting post 412 passes through the first assembly part 12 and the second assembly part 23, and to ensure that the stop block 413 can be inserted into the side of the female limiting member 42 away from the male limiting body 411, this embodiment can be configured in at least the following ways:

[0161] The first connecting hole 1211 and the second connecting hole 231 are configured to allow the connecting post 412 of the male limiting member 41 and the stop block 413 to pass through simultaneously.

[0162] Alternatively, a first clearance hole 1212 connected to the first connecting hole 1211 is provided in the first assembly part 12, and a second clearance hole connected to the second connecting hole 231 is provided in the second assembly part 23, through which the first clearance hole 1212 and the second clearance hole are provided for the stop block 413 to pass.

[0163] In this embodiment, for the spraying device that uses the above-mentioned method one or method two to set the mounting base, device body, male limit member 41 and female limit member 42, in order to ensure that the device body is reliably kept in the rotational locking position and the male limit member 41 is reliably kept in the axial locking position, and to facilitate the adjustment of the angle of the device body relative to the mounting base and the disassembly of the device body, this embodiment is configured in the following way;

[0164] It also includes elastic element 50;

[0165] like Figure 2 , Figure 3 , Figure 11 , Figure 12 , Figure 13 As shown, when the male limiting body 411, mounting base, device body, and female limiting member 42 are arranged in sequence, the elastic member 50 is disposed between the device body and the female limiting member 42; the elastic force of the elastic member 50 acts on the device body to keep the second assembly part 23 and the first assembly part 12 abutting each other, and the rotation locking assembly maintains a locking fit to keep the device body and the mounting base in a rotationally locked position; the elastic force of the elastic member 50 acts on the female limiting member 42 to keep the male limiting member 41 and the female limiting member 42 in an axially locked position.

[0166] When the female limiting member 42, the mounting base, the device body, and the male limiting body 411 are arranged in sequence, the elastic member 50 is disposed between the female limiting member 42 and the mounting base; the elastic force of the elastic member 50 acts on the mounting base to keep the device body and the mounting base in the rotational locking position; the elastic force of the elastic member 50 acts on the female limiting member 42 to keep the male limiting member 41 and the female limiting member 42 in the axial locking position.

[0167] When it is necessary to adjust the relative angle between the device body and the mounting base, the device body can overcome the elastic force of the elastic element 50 under the action of external force and move away from the mounting base to disengage from the rotation lock position, so that the first limiting structure 122 and the second limiting structure 232 are disengaged. At this time, rotate the device body to another rotation lock position, and then release the external force. The device body and the mounting base can move closer to each other under the action of elastic force, and the first limiting structure 122 and the second limiting structure 232 cooperate, and the rotating device remains in another rotation lock position.

[0168] When the main body of the device needs to be disassembled, the male limiting member 41 and the female limiting member 42 can overcome the elastic force of the elastic member 50 under the action of external force and move away from each other to disengage from the axial locking position. The male limiting member 41 and the female limiting member 42 can rotate relative to each other under the action of external force so that the stop block 413 rotates to the position opposite to the unlocking hole 422 and is disengaged from the unlocking hole 422, the first connecting hole 1211 and the second connecting hole 231, thereby releasing the axial restriction between the male limiting member 41 and the female limiting member 42 on the main body of the device and the mounting base. At this time, the main body of the device and the mounting base can be separated from each other.

[0169] In this embodiment, by placing the elastic element 50 between the female limiting element 42 and the device body, or between the female limiting element 42 and the mounting base, the elastic force of the elastic element 50 can simultaneously achieve the fixation of the relative angle of the device body and the locking connection between the device body and the mounting base. One structure achieves at least two functions, making the structure of the spraying device more compact.

[0170] In this embodiment, the reliable cooperation between the male limiting member 41 and the female limiting member 42 ensures a stable connection between the device body and the mounting base. To prevent the male limiting member 41 from loosening due to equipment shaking when the spraying device is applied to the equipment, causing the device body to detach from the mounting base, the spraying device is configured as follows:

[0171] When the male limit body 411 is located on the side of the mounting base away from the main body of the device, such as Figure 5 As shown, a limiting member mounting groove 13 is provided on the side of the mounting base away from the main body of the device. When the male limiting member 41 is in the axial locking position, the male limiting body 411 is inserted into the limiting member mounting groove 13.

[0172] In this embodiment, the male limiting member 41 is protected by the limiting installation groove to prevent the male limiting member 41 from becoming loose.

[0173] In other embodiments, when the male limiting body 411 is located on the side of the device body away from the mounting base, the side of the device body away from the mounting base is provided with a limiting member mounting groove. When the male limiting member 41 is in the axial locking position, the male limiting body 411 is engaged in the limiting member mounting groove.

[0174] like Figures 25-33 As shown, in one embodiment of the spraying device of the present invention, in order to prevent the male limit member 41 from rotating on its own without unlocking force when it is engaged with the mounting base or the main body of the device, causing the male limit member 41 to disengage from the axial locking position between the male limit member 41 and the female limit member 42, a first limiting component is provided between the male limit member 41 and the male limit mating member to limit the degree of freedom of relative rotation between the male limit body 411 and the male limit mating member, thereby preventing the male limit member 41 from rotating on its own and preventing the male limit member 41 from accidentally loosening.

[0175] When the male limit member 41 is in the axial locking position, the male limit body 411 abuts against the first assembly part 12 of the mounting base, and the mounting base is a male limit fitting member; when the male limit member 41 is in the axial locking position, the male limit body 411 abuts against the second assembly part 23 of the device body, and the device body is a male limit fitting member.

[0176] The non-unlocking force can be the force exerted on the male limit member 41 due to equipment vibration during operation, the force exerted on the male limit member 41 due to equipment vibration during handling, or the force exerted on the male limit member 41 when the user accidentally touches it. It should be noted that the non-unlocking force acting on the male limit member 41 is not limited to the above situations; different non-unlocking forces will occur when the spraying device is in different scenarios.

[0177] In this embodiment, as Figure 27 As shown, the first limiting component includes a first positioning structure 4111 disposed on the male limiting member 41, and a second positioning structure 131 disposed on the male limiting mating member. One of the first positioning structure 4111 and the second positioning structure 131 has a positioning protrusion and the other has a positioning recess. When the male limiting member 41 is in the axial locking position, the first positioning structure 4111 and the second positioning structure 131 are inserted to restrict the rotational freedom between the male limiting member 41 and the male limiting mating member, that is, to restrict the rotational freedom between the mounting base or the main body of the device. When it is necessary to rotate the male limiting member 41, the user applies an external force to the male limiting member 41 to disengage the first positioning structure 4111 from the second positioning structure 131, so that the male limiting member 41 can be rotated.

[0178] It should be noted that this embodiment does not limit the shape, size, or dimensions of the first positioning structure 4111 and the second positioning structure 131. The first positioning structure 4111 and the second positioning structure 131 can be configured according to the actual required rotational resistance. The first positioning structure 4111 can be, but is not limited to, a positioning hemisphere, and the second positioning structure 131 can be, but is not limited to, a positioning hole.

[0179] like Figure 27 , Figure 29As shown, in this embodiment, in order to achieve reliable positioning of the first limiting component, the male limiting component 41 is provided with two first positioning structures 4111, and the male limiting mating component is provided with two second positioning structures 131. When the male limiting component 41 is in the axial locking position, the first positioning structure 4111 and the second positioning structure 131 correspond one-to-one.

[0180] In this embodiment, the male limiting fitting is a mounting base. That is, when the male limiting fitting 41 is in the axial locking position, the male limiting body 411 abuts against the first assembly part 12 of the mounting base.

[0181] In other embodiments, the number of first positioning structures 4111 may be one, three or more; the number of second positioning structures 131 may also be one, three or more.

[0182] When the male limit member 41 rotates relative to the male limit fitting member and the female limit member 42, so that the stop block 413 is opposite to the unlocking hole 422, the male limit member 41 and the female limit member 42 are in the axial unlocking position, and the male limit member 41 and the female limit member 42 can move away from each other axially.

[0183] In this embodiment, the male limit fitting is a mounting base; in order to provide axial unlocking feedback to the male limit fitting 41, or to prevent the male limit fitting 41 from rotating randomly after rotating to the axial unlocking position and affecting subsequent operations, a third positioning structure 132 is provided on the mounting base; when the male limit fitting 41 is in the axial unlocking position, the first positioning structure 4111 cooperates with the third positioning structure 132.

[0184] In this embodiment, the mounting base is provided with a "closed" prompt on the side of the second positioning structure 131 and a "open" prompt on the side of the third positioning structure 132, so as to provide the user with a prompt for the rotation of the limit component 41.

[0185] In one embodiment of the spraying device of the present invention, in order to guide the rotation of the male limit member 41 and limit its rotational stroke during the process of adjusting the relative relationship between the stop block 413 and the female limit member 42 by rotating the male limit member 41 relative to the mounting base or the device body, thereby adjusting the stop block 413 to an axially locked or axially unlocked position, the spraying device is configured as follows:

[0186] When the male limit component 41 is in the axial locking position, the male limit body 411 abuts against the male limit mating component, which is a mounting base or device body;

[0187] like Figure 27 , Figure 29As shown, the male limit body 411 is provided with a third limit structure 4112, and the male limit mating part is provided with a fourth limit structure 133; the fourth limit structure 133 is used to cooperate with the third limit structure 4112 to limit the rotation stroke of the male limit body 411 relative to the mounting base.

[0188] In this embodiment, the male limiting component is a mounting base; the third limiting structure 4112 is a limiting protrusion, and the fourth limiting structure 133 is an arc-shaped limiting hole. When the male limiting component 41 rotates relative to the mounting base, the limiting protrusion moves along the stroke defined by the arc-shaped limiting hole. In this embodiment, the limiting protrusion and the arc-shaped limiting hole are used as the third limiting structure 4112 and the fourth limiting structure 133, respectively. When the male limiting component 41 and the mounting base approach each other for assembly, the limiting protrusion can be inserted into the arc-shaped limiting hole.

[0189] In this embodiment, when the third limiting structure 4112 and the fourth limiting structure 133 cooperate, they restrict the radial relative position between the male limiting member 41 and the mounting base.

[0190] In other embodiments, an arc-shaped limiting hole can be used as the third limiting structure 4112, and a limiting protrusion can be used as the fourth limiting structure 133. The cooperation between the third limiting structure 4112 and the fourth limiting structure 133 can also be implemented in other ways.

[0191] In one embodiment of the spraying device of the present invention, in order to prevent the retaining member 41 from detaching from the mounting base or the main body of the device due to external non-unlocking force during the transportation, handling, and use of the spraying device, the spraying device is configured as follows:

[0192] When the male limit component 41 is in the axial locking position, the male limit body 411 abuts against the male limit mating component, which is a mounting base or device body;

[0193] like Figures 27-32 As shown, the male limiting member 41 is provided with a connecting hole, and the male limiting fitting member includes an inner protrusion 134 that protrudes radially inward relative to the inner wall of the connecting hole; the male limiting member 41 is provided with an axial limiting groove 41141, and the inner protrusion 134 is inserted into the axial limiting groove 41141; the axial limiting groove 41141 and the inner protrusion 134 cooperate with each other to limit the axial relative displacement between the male limiting member 41 and the male limiting fitting member; when the male limiting member 41 rotates relative to the male limiting fitting member, the inner protrusion 134 moves relative to the axial limiting groove 41141.

[0194] In this embodiment, the inner protrusion 134 is configured to protrude a certain size only relative to the inner wall 12111 of the connecting hole. The size of the protrusion can be controlled to be small, and axial micro-limiting can be achieved only by the cooperation of the inner protrusion 134 and the axial limiting groove 41141.

[0195] In this embodiment, the inner protrusion 134 has a certain deformation capability. When it is necessary to move the male limiting member 41 in the direction of disengaging from the mounting base along the axial direction, it is only necessary to pull out the male limiting member 41 by external force.

[0196] In this embodiment, as Figures 25-28 As shown, the male limiting member 41 includes a limiting plate 4114 protruding from the side of the male limiting body 411 that is close to the stop block 413. The limiting plate 4114 has a recess, and an axial limiting groove 41141 is formed between the recess of the limiting plate 4114 and the male limiting body 411.

[0197] In this embodiment, a rear cover 70 is also provided; such as Figure 24 , Figure 33 As shown, the male limiting body 411, the first assembly part 12 of the mounting base, the second assembly part 23 of the spray bar 201, the elastic member 50, the female limiting member 42, and the rear cover 70 are arranged in sequence. The rear cover 70 is located on the side of the female limiting member 42 away from the second assembly part 23. The rear cover 70 is detachably connected to the spray bar 201 to form a mounting cavity. The female limiting member 42 is located in the mounting cavity. By setting the rear cover 70, the female limiting member 42 can be protected to prevent non-unlocking forces from acting on the female limiting member 42, which could cause the male limiting member 41 to accidentally detach from the female limiting member 42, thus ensuring the reliability of the device body installation.

[0198] If the female limiting member 42 is locked and fixed to the spray bar 201 of the device body, rotating the spray bar 201 to adjust the angle of the device body relative to the mounting base will cause the male limiting member 41 to rotate with the spray bar 201, or cause the female limiting member 42 to disengage from the male limiting member 41. Since there is a limit fit between the male limiting member 41 and the first assembly part 12 of the mounting base, if the male limiting member 41 rotates with the spray bar 201, the limiting structure between the male limiting member 41 and the first assembly part 12 may be damaged. If the male limiting member 41 disengages from the female limiting member 42, the axial locking assembly is in an unlocked state, at which point the device body cannot remain connected to the mounting base.

[0199] Therefore, in this embodiment, as Figure 33 As shown, in order to solve the above problems, only the female limiting member 42 is installed in the mounting cavity formed by the spray bar 201 and the rear cover 70. The female limiting member 42 and the spray bar 201 are configured to rotate relative to each other. In this way, when it is only necessary to adjust the angle of the spray bar 201 without disassembling the spray bar 201, the spray bar 201 can rotate relative to the female limiting member 42 to adjust the angle. When the spray bar 201 rotates, the male limiting member 41 and the female limiting member 42 maintain a reliable fit, and the spray bar 201 remains connected to the mounting base.

[0200] In this embodiment, as Figure 33As shown, the rear cover 70 is fastened to the mounting base via a cover latch 71. In other embodiments, the rear cover 70 can also be detachably connected to the mounting base via a magnetic assembly.

[0201] In another embodiment of the spraying device of the present invention, in order to reduce the number of parts, the male limiting member 41 and the mounting base can be designed as an integral structure, or the male limiting member 41 and the device body can be designed as an integral structure, or the female limiting member 42 and the mounting base can be designed as an integral structure, or the female limiting member 42 and the device body can be designed as an integral structure.

[0202] like Figures 18-24 As shown, the spraying device in this embodiment is configured as follows: the spraying device includes a mounting base, a female limiting member 42, and a device body;

[0203] The mounting base includes a first assembly part 12; the female limiting member 42 is provided with an unlocking hole 422; the device body includes a second assembly part 23 and a stop block 413 connected to each other, that is, the device body and the male limiting member 41 are integrally set, and the second assembly part 23 is also the male limiting body 411.

[0204] The device body has at least two rotational locking positions that cooperate with the mounting base; the stop block 413 has an axial locking position that cooperates with the female limiting member 42; when the stop block 413 is in the axial locking position, the second assembly part 23, the first assembly part 12, the female limiting member 42, and the stop block 413 abut against each other in sequence, and the stop block 413 abuts against the female limiting member 42 to limit the axial relative displacement between the device body and the mounting base; when it is necessary to disassemble the device body, the device body and the female limiting member 42 can rotate relative to each other under the action of external force, so that the stop block 413 rotates to be opposite to the unlocking hole 422, and the stop block 413 can pass through the unlocking hole to disengage from the female limiting member 42, thereby disengaging the stop block 413 from the axial locking position.

[0205] In this embodiment, the spraying device has a mounting base for mounting and fixing to the equipment. The main body of the device can be installed onto the mounting base through the following steps:

[0206] The main body of the device and the female limiting member 42 are respectively located on opposite sides of the mounting base;

[0207] The first assembly part 12 and the second assembly part 23 are engaged by a rotation locking assembly;

[0208] Adjust the relative angle between the main body of the device and the female limiting member 42, so that the stop block 413 is aligned with the unlocking hole 422;

[0209] The stop block 413 passes through the unlocking hole 422 to the side of the female limit member 42 away from the mounting base;

[0210] Adjust the relative angle between the main body of the device and the female limiting member 42, so that the stop block 413 abuts against the side of the female limiting member 42 away from the mounting seat. The stop block 413 is in the axial locking position, and the main body of the device is in the rotational locking position.

[0211] In this embodiment, the male limiting member 41 is integrally formed with the main body of the device, which can reduce the number of parts and make the overall structure more compact.

[0212] In this embodiment, in order to enable the stop block 413 to abut against the side of the female limiting member 42 away from the mounting base, so as to keep the male limiting member 41 in the axially locked position, the main body of the device is configured as follows:

[0213] The main body of the device includes a connecting post 412, the two ends of which are connected to the second assembly part 23 and the stop block 413 respectively; the stop block 413 protrudes radially relative to the connecting post 412, and a first engaging surface is formed on the side of the stop block 413 close to the male limiting body 411; a second engaging surface is formed on the side of the female limiting member 42 away from the male limiting body 411; when the male limiting member 41 is in the axial locking position, the first engaging surface abuts against the second engaging surface.

[0214] In one embodiment of this invention, by providing a connecting post 412, a certain insertion gap is formed between the stop block 413 and the second assembly part 23. The stop block 413 protrudes radially relative to the connecting post 412, so that the stop block 413 provides a snap-fit ​​surface that can snap with the female limiting member 42. This facilitates snapping the female limiting member 42 and the mounting base between the second assembly part 23 and the stop block 413, thereby keeping the device body in an axially locked position and maintaining the connection between the device body and the mounting base.

[0215] In this embodiment, in order to enhance the reliability of the engagement between the device body and the female limiting member 42 and to keep the device body in the axially locked position, the device body includes a plurality of stop blocks 413 arranged circumferentially on the radial outer wall of the connecting column 412. By having multiple stop blocks 413 abut against the female limiting member 42 at multiple positions, the reliability of axial locking can be enhanced.

[0216] In one embodiment of this invention, the second assembly part 23 cooperates with the first assembly part 12 via a rotation locking assembly to restrict the rotational freedom between the device body and the mounting base; the rotation locking assembly can be configured as follows:

[0217] like Figures 18-21 As shown, the first assembly part 12 is provided with a first limiting structure 122, and the second assembly part 23 is provided with a second limiting structure 232.

[0218] The number of first limiting structures 122 is at least two, and when the second limiting structure 232 cooperates with different first limiting structures 122, the main body of the device is located in different rotation locking positions; or, the number of second limiting structures 232 is at least two, and when the first limiting structure 122 cooperates with different second limiting structures 232, the main body of the device is located in different rotation locking positions.

[0219] The first limiting structure 122 can be a positioning pin or a positioning hole; the second limiting structure 232 can be a positioning hole or a positioning pin; when the main body of the device is in the rotation lock position, the positioning pin is inserted into the positioning hole; when the second assembly part 23 and the first assembly part 12 move away from each other along the axial direction, the positioning pin can be dislodged from the positioning hole so that the main body of the device is dislodged from the rotation lock position.

[0220] In one embodiment of this invention, in order to ensure the reliability of axial locking between the device body and the female limiting member 42 while facilitating adjustment of the angle of the device body, the spraying device is configured as follows:

[0221] It also includes an elastic element 50, which is located between a female limiting element 42 and a first assembly part 12.

[0222] When the stop block 413 is in the axial locking position, the elastic force of the elastic member 50 acts on the first assembly part 12 so that the first assembly part 12 and the second assembly part 23 remain in abutment, and the first limiting structure 122 and the second limiting structure 232 remain in cooperation, thereby keeping the working device and the mounting base in the rotational locking position. The elastic force of the elastic member 50 acts on the female limiting member 42 so that the stop block 413 and the female limiting member 42 remain in the axial locking position.

[0223] When it is necessary to adjust the relative angle between the device body and the mounting base, it can be done in at least the following ways:

[0224] An external force is applied to the main body of the device, causing it to bend axially away from the mounting base.

[0225] The stop block 413 drives the female limiting member 42 to press against the elastic member 50, and the second assembly part 23 overcomes the elastic force and moves away from the first assembly part 12 until the first limiting structure 122 and the second limiting structure 232 disengage.

[0226] Rotate the main body of the device until the main body of the device rotates to the point where the first limiting structure 122 is opposite to the other second limiting structure 232;

[0227] When the external force is released, the main body of the device returns to its original position in the direction of approaching the first assembly part 12 under the action of elastic force;

[0228] The angle of the main body of the device is adjusted, and the main body of the device is kept in another rotation lock position.

[0229] When it is necessary to disassemble the main body of the device, it can be done in at least the following ways:

[0230] Press the female limiting member 42 against the first assembly part 12 to compress the elastic member 50, and the stop block 413 disengages from the female limiting member 42.

[0231] The main body of the device rotates relative to the mounting base until the stop block 413 is aligned with the unlocking hole 422;

[0232] Move the main body of the device away from the mounting base. The stop block 413 passes through the unlocking hole 422, and the main body of the device is separated from the female limiting member 42 and the mounting base, thus completing the disassembly of the main body of the device.

[0233] The spraying device in this embodiment has an adjustable angle and is easy to disassemble.

[0234] In one embodiment of this example, in order to prevent the elastic element 50 from coming off, a first mounting groove 11 is formed on the side of the mounting base away from the second assembly part 23, and the elastic element 50 is disposed in the first mounting groove 11.

[0235] In another embodiment, a mounting groove may be provided on the side of the female limiting member 42 near the mounting base to mount the elastic member 50.

[0236] In another embodiment, mounting grooves may be provided on the mounting base and the female limiting member 42 respectively, and the two ends of the elastic member 50 may be located in the mounting grooves on both sides respectively.

[0237] In another embodiment, a spring mounting post may be provided between the first assembly part 12 and the female limiting member 42, and the elastic member 50 is a spring, which is sleeved on the spring mounting post.

[0238] In one embodiment of this example, based on the connection post 412 provided in the main body of the device, in order to ensure that the stop block 413 can abut against the side of the female limiting member 42 away from the mounting base when the main body of the device is installed to the mounting base, a first connecting hole 1211 and a first clearance hole 1212 are provided in the first assembly part 12 of the mounting base. The connection post 412 can pass through the first connecting hole 1211, and the stop block 413 can pass through the first clearance hole 1212. When the stop block 413 is in the axial locking position, the connection post 412 is inserted into the first connecting hole 1211, and the stop block 413 abuts against the side of the female limiting member 42 away from the first assembly part 12.

[0239] In this embodiment, the size and shape of the first connecting hole 1211 are configured to match the connecting post 412, and the size and shape of the first clearance hole 1212 are configured to match the stop block 413.

[0240] In another embodiment, a large hole can be directly provided in the first assembly part 12, and the connecting post 412 and the stop block 413 can be connected to each other to form a structure that can pass through the large hole.

[0241] In one embodiment of this example, based on the connection post 412 provided in the main body of the device, in order for the stop block 413 protruding from the radial outer wall of the connection post 412 to pass through the female limiting member 42 when the main body of the device is engaged with the female limiting member 42, a mating hole 423 is provided in the female limiting member 42. When the stop block 413 passes through the unlocking hole 422 to the side of the female limiting member 42 away from the mounting base, the connection post 412 is inserted into the mating hole 423.

[0242] In this embodiment, the mating hole 423 is connected to the unlocking hole 422. When the connecting post 412 is inserted into the mating hole 423 and the main body of the device rotates relative to the female limiting member 42 to adjust the position of the stop block 413 so that the stop block 413 is opposite to or offset from the unlocking hole 422, the connecting post 412 rotates in the mating hole 423.

[0243] In this embodiment, the outer wall of the connecting column 412 in the radial direction cooperates with a plurality of stop blocks 413; correspondingly, the outer side of the mating hole 423 in the radial direction is provided with a plurality of unlocking holes 422.

[0244] In one embodiment of this invention, to ensure the reliability of the axial locking between the device body and the female limiting member 42, the female limiting member 42 is configured as follows:

[0245] The female limiting member 42 has a stop groove 421 on the side away from the mounting base. The second snap-fit ​​surface is formed in the stop groove 421. When the stop block 413 is in the axial locking position, the stop block 413 snaps into the stop groove 421.

[0246] The stop block 413 and the stop groove 421 cooperate to restrict the working device and the female limit member 42 from moving away from each other in the axial direction, and to restrict the relative rotation of the working device and the female limit member 42.

[0247] In one embodiment of this example, in order to facilitate the disassembly of the main body of the device after it has been installed and fitted with the mounting base and the female limiting member 42, and also to prevent the female limiting member 42 from being lost, a rear cover 70 is provided. The rear cover 70 is placed on the side of the female limiting member 42 away from the first assembly part 12. The rear cover 70 is connected to the female limiting member 42 by means of snap fasteners, magnetism, etc., or the rear cover 70 is connected to the mounting base by means of snap fasteners, magnetism, etc. The rear cover 70 serves to protect the female limiting member 42 and improve the appearance.

[0248] The present invention also proposes an unmanned device, which includes the spraying device described above and the device body. The spraying device includes a mounting base and a device body. The mounting base is fixedly installed on the device body. The relative angle between the device body and the device body is easy to adjust. Furthermore, the device body of the spraying device with spraying function is easy to disassemble.

[0249] Unmanned equipment can include, but is not limited to, drones, unmanned vehicles, and unmanned boats.

[0250] In this unmanned device, the angle of the main body of the device can be adjusted or disassembled manually, or it can be operated in conjunction with the controller and braking mechanism.

[0251] The present invention also proposes an aircraft 800, which can be an unmanned aircraft 800 or an aircraft 800 with manned function.

[0252] like Figure 1-34 As shown, in one embodiment of the aircraft 800 of the present invention, the aircraft 800 includes a fuselage 81, an arm 82, a battery 84, a liquid storage container 83, a spraying device, and a landing gear 85. The arm 82, the liquid storage container 83, the battery 84, and the landing gear 85 are all mounted on the fuselage.

[0253] In this embodiment, there are two arms 82. Of course, in other embodiments, a multi-rotor structure can also be used, such as three or four, or even more. This embodiment does not limit this. At the same time, each arm 82 includes a first end and a second end. The first end of each arm 82 is rotatably connected to the fuselage 81, and the second end of each arm 82 extends away from the fuselage 81.

[0254] In this embodiment of the spraying device, the mounting base is provided with an arc-shaped docking part 14, which matches the shape of the arm 82. The docking part 14 is connected to the arm 82 by means of fasteners or the like. The angle between the main body of the spraying device and the mounting base is adjustable, and the main body of the device is easy to disassemble from the mounting base. That is, the relative angle between the main body of the spraying device with spraying function and the fuselage 81, arm 82, and rotor structure is adjustable and the angle adjustment is convenient. Furthermore, the main body of the spraying device is also easy to disassemble from the mounting base, which facilitates replacement and maintenance.

[0255] In this aircraft 800, the angle adjustment or disassembly of the main body of the device can be done manually or by the controller in conjunction with the braking mechanism.

[0256] Figure 1In the diagram, F11 and F12 represent the left and right directions of the aircraft 800, while F21 and F22 represent the forward and backward directions. The axial direction of the spraying device is parallel to F11 and F12. When the aircraft 800 flies forward or backward, the main body of the device can be rotated around its axial direction as needed. The main body of the spraying device can rotate around its axial direction relative to the mounting base and relative to the arm 82, causing the nozzle 202 to swing in the F21 and F22 directions. When it is necessary to disassemble the main body of the spraying device, move the main body along the F11 or F12 direction to move it away from the mounting base. At this time, the stop block 413 disengages from the second locking surface of the female limiting member 42. Then rotate the main body of the device in the F21 or F22 direction to align the stop block 413 with the unlocking hole 422. Finally, move the main body along the F11 or F12 direction to remove the main body of the device from the mounting base. It should be noted that the definitions of the left, right, front, and rear directions of the aircraft 800 in this embodiment are not intended as limitations on the aircraft 800.

[0257] In the description herein, it should be understood that the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They 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 limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0258] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0259] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0260] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A mounting assembly, characterized by The utility model relates to a locking device for a first component (10) and a second component (20), comprising: a female limiting member (42) provided with an unlocking hole (422); and a male limiting member (41) comprising a male limiting body (411) and a stop block (413) connected to each other, the male limiting member (41) having an axial locking position matched with the female limiting member (42); when the male limiting member (41) is in the axial locking position, the male limiting body (411) and the stop block (413) are located on opposite sides of the female limiting member (42), the stop block (413) abuts against the female limiting member (42) to keep the second component (20) connected with the first component (10); the stop block (413) can be rotated to be opposite to and out of the unlocking hole (422) under the action of an external force, so that the male limiting member (41) is out of the axial locking position, thereby disconnecting the second component (20) from the first component (10); the second component (20) has at least two rotational locking positions matched with the first component (10); when the second component (20) and the first component (10) are axially away from each other, the second component (20) can be out of the rotational locking position and rotated relative to the first component (10); the female limiting member (42) comprises a stop groove (421); when the male limiting member (41) is in the axial locking position, the stop groove (421) is located on a side of the female limiting member (42) away from the male limiting body (411), and the stop block (413) is clamped into the stop groove (421); the utility model further comprises a resilient member (50); when the male limiting body (411), the first component (10), the second component (20) and the female limiting member (42) are sequentially arranged, the resilient member (50) is arranged between the second component (20) and the female limiting member (42); the elastic force of the resilient member (50) acts on the second component (20) to keep the second component (20) in the rotational locking position relative to the first component (10); the elastic force of the resilient member (50) acts on the female limiting member (42) to keep the male limiting member (41) and the female limiting member (42) in the axial locking position; when the female limiting member (42), the first component (10), the second component (20) and the male limiting body (411) are sequentially arranged, the resilient member (50) is arranged between the female limiting member (42) and the first component (10); the elastic force of the resilient member (50) acts on the first component (10) to keep the second component (20) in the rotational locking position relative to the first component (10); the elastic force of the resilient member (50) acts on the female limiting member (42) to keep the male limiting member (41) and the female limiting member (42) in the axial locking position. ​ ​ The second component (20) can be moved away from the first component (10) against the elastic force of the elastic member (50) under the action of an external force to disengage from the rotational locking position; the male limiting member (41) and the female limiting member (42) can be moved away from each other against the elastic force of the elastic member (50) under the action of an external force to disengage from the axial locking position.

2. The mounting assembly of claim 1, wherein, The male limiting member (41) further comprises a connecting column (412), two ends of the connecting column (412) are connected with the male limiting body (411) and the stop block (413) respectively, the stop block (413) protrudes in the radial direction relative to the connecting column (412), and a first clamping surface is formed on one side of the stop block (413) close to the male limiting body (411); a second clamping surface is formed on one side of the female limiting member (42) away from the male limiting body (411). When the male limiting member (41) is in the axial locking position, the first clamping surface abuts against the second clamping surface.

3. The mounting assembly of claim 2, wherein, The female limiting member (42) is provided with a matching hole (423) connected with the unlocking hole (422); when the male limiting member (41) is in the axial locking position, the connecting column (412) is inserted into the matching hole (423), and the stop block (413) abuts against the second clamping surface.

4. The mounting assembly of claim 1, wherein, The stop groove (421) is provided with a matching recess (4213), and the stop block (413) is provided with a matching protrusion (4132), or the stop groove (421) is provided with a matching protrusion, and the stop block (413) is provided with a matching recess. When the male limiting member (41) is in the axial locking position, the stop block (413) is clamped into the stop groove (421), and the matching protrusion is clamped into the matching recess (4213), so as to limit the relative rotation between the male limiting member (41) and the female limiting member (42).

5. The mounting assembly of any of claims 1-4, wherein, The first component (10) is fixedly connected with or integrally formed with the male limiting body (411), the second component (20) and the female limiting member (42) are clamped between the first component (10) and the stop block (413) when the male limiting member (41) is in the axial locking position; or, The second component (20) is fixedly connected with or integrally formed with the male limiting body (411), the first component (10) and the female limiting member (42) are clamped between the second component (20) and the stop block (413) when the male limiting member (41) is in the axial locking position; or, The first component (10) is fixedly connected with or integrally formed with the female limiting member (42), the second component (20) is clamped between the male limiting body (411) and the first component (10) when the male limiting member (41) is in the axial locking position; or, The first component (10) is fixedly connected with or integrally formed with the female limiting member (42), the second component (20) is clamped between the male limiting body (411) and the first component (10) when the male limiting member (41) is in the axial locking position; or, The second component (20) is fixedly connected or integrally formed with the female limiting part (42), and when the male limiting part (41) is located at the axial locking position, the first component (10) is clamped between the male limiting body (411) and the second component (20); or, When the male limiting part (41) is located at the axial locking position, the first component (10) and the second component (20) are clamped between the male limiting body (411) and the female limiting part (42).

6. A spraying device characterized by The mounting assembly comprises the mounting seat as the first component (10) and the device main body as the second component (20); The device main body is matched with the mounting seat through an axial locking assembly, and the axial locking assembly comprises the male limiting part (41) and the female limiting part (42); When the axial locking assembly is in the axial locking state, the device main body is kept connected with the mounting seat, and when the axial locking assembly is in the axial unlocking state, the device main body can be disconnected with the mounting seat.

7. The spray device of claim 6, wherein, The device main body is matched with the mounting seat through a rotation locking assembly, and the device main body has at least two rotation locking positions matched with the mounting seat; When the rotation locking assembly is in the rotation locking state, the device main body is located at the rotation locking position, and when the rotation locking assembly is in the rotation unlocking state, the device main body can be rotated relative to the mounting seat.

8. The spray device of claim 6, wherein, When the male limiting part (41) is located at the axial locking position, the male limiting body (411), the mounting seat, the device main body and the female limiting part (42) are sequentially arranged, the male limiting body (411) abuts against one side of the mounting seat away from the female limiting part (42), and the stop block (413) abuts against one side of the female limiting part (42) away from the device main body; or, when the male limiting part (41) is located at the axial locking position, the female limiting part (42), the mounting seat, the device main body and the male limiting body (411) are sequentially arranged, the male limiting body (411) abuts against one side of the device main body away from the mounting seat, and the stop block (413) abuts against one side of the female limiting part (42) away from the mounting seat. The mounting seat comprises a first assembly part (12) provided with a first connecting hole (1211), and the device main body comprises a second assembly part (23) provided with a second connecting hole (231); 9. The spray device of claim 7, wherein, The male limiting part (41) further comprises a connecting column (412), two ends of the connecting column (412) are connected with the male limiting body (411) and the stop block (413) respectively, and when the male limiting part (41) is located at the axial locking position, the connecting column (412) is inserted into the first connecting hole (1211) and the second connecting hole (231), and the stop block (413) abuts against one side of the female limiting part (42) away from the male limiting body (411). ​ 10. The spray device of claim 7, wherein, The mounting base comprises a first assembly part (12), and the device body comprises a second assembly part (23); the rotation locking assembly comprises a first limiting structure (122) arranged on the first assembly part (12) and a second limiting structure (232) arranged on the second assembly part (23); The number of the first limiting structure (122) is at least two, and when the second limiting structure (232) cooperates with different first limiting structures (122), the device body is located at different rotation locking positions; or the number of the second limiting structure (232) is at least two, and when the first limiting structure (122) cooperates with different second limiting structures (232), the device body is located at different rotation locking positions.

11. The spray device of claim 10, wherein, The first limiting structure (122) is a positioning column, and the second limiting structure (232) is a positioning hole, or the first limiting structure (122) is a positioning hole, and the second limiting structure (232) is a positioning column; when the device body is located at the rotation locking position, the positioning column is inserted into the positioning hole.

12. The spray device of claim 6, wherein, When the male limiting body (411) is arranged on the side of the mounting base away from the device body, a limiting part mounting groove (13) is arranged on the side of the mounting base away from the device body; when the male limiting part (41) is located at the axial locking position, the male limiting body (411) is clamped into the limiting part mounting groove (13). When the male limiting body (411) is arranged on the side of the device body away from the mounting base, a limiting part mounting groove (13) is arranged on the side of the device body away from the mounting base; when the male limiting part (41) is located at the axial locking position, the male limiting body (411) is clamped into the limiting part mounting groove (13).

13. The spray device of claim 6, wherein, The device body comprises a spray rod (201) and a spray head (202) connected to each other, and one end of the spray rod (201) away from the spray head (202) is used for being connected to the mounting base.

14. The spray device of claim 6, wherein, When the male limiting part (41) is located at the axial locking position, the male limiting body (411) abuts against a male limiting cooperation part, and the male limiting cooperation part is the mounting base or the device body; The male limiting part (41) is provided with a first limiting structure (4111), and the male limiting cooperation part is provided with a second limiting structure (131); when the male limiting part (41) is located at the axial locking position, the first limiting structure (4111) cooperates with the second limiting structure (131) to limit the relative rotation between the male limiting body (411) and the male limiting cooperation part.

15. The spray device of claim 14, wherein, The male limiting cooperation part is provided with a third limiting structure (132), and when the abutting block (413) is opposite to the unlocking hole (422), the first limiting structure (4111) cooperates with the third limiting structure (132).

16. The spray device of claim 6, wherein, When the male limiting part (41) is located at the axial locking position, the male limiting body (411) abuts against a male limiting cooperation part, and the male limiting cooperation part is the mounting base or the device body; The male limiting body (411) is provided with a third limiting structure (4112), and the male limiting fitting part is provided with a fourth limiting structure (133); the fourth limiting structure (133) is used for mutually cooperating with the third limiting structure (4112) to limit a rotation stroke of the male limiting body (411) relative to the mounting seat in rotation.

17. The spray device of claim 6, wherein, The male limiting body (411) is provided with a third limiting structure (4112), and the male limiting fitting part is provided with a fourth limiting structure (133); the fourth limiting structure (133) is used for mutually cooperating with the third limiting structure (4112) to limit a rotation stroke of the male limiting body (411) relative to the mounting seat in rotation. The male limiting fitting part is provided with a first connecting hole (1211), and the male limiting fitting part comprises an inner convex part (134) which protrudes radially inward relative to an inner wall of the first connecting hole (1211); the male limiting part (41) is provided with an axial limiting groove (41141), the inner convex part (134) is clamped into the axial limiting groove (41141), and the axial limiting groove (41141) and the inner convex part (134) are mutually matched to limit the axial relative displacement between the male limiting part (41) and the male limiting fitting part; when the male limiting part (41) rotates relative to the male limiting fitting part, the inner convex part (134) moves relative to the axial limiting groove (41141).

18. An unmanned device, comprising: The spraying device comprises the male limiting part according to any one of claims 6-17.

19. An aircraft characterized by, The spraying device comprises the male limiting part according to any one of claims 6-17.

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