Spraying device and unmanned vehicle

Abstract

The spraying device comprises a mounting frame, a liquid storage tank and a spraying assembly which are sequentially arranged from bottom to top, a matching hole penetrating through the liquid storage tank is formed in the liquid storage tank, and the spraying assembly is mounted above the liquid storage tank through a supporting piece penetrating through the matching hole; the supporting piece is fixedly installed on the installation frame. In the embodiment of the invention, the matching hole is formed in the liquid storage tank, and the supporting piece penetrates through the liquid storage tank to support and mount the spraying assembly, so that the spraying assembly can be conveniently arranged above the liquid storage tank, the overall structure of the spraying device is more compact, and the occupied horizontal space is smaller; the unmanned vehicle adopting the spraying device is smaller in size, higher in traffic capacity in a narrow space and capable of adapting to more application scenes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural automatic driving equipment, in particular to a spraying device and an unmanned vehicle with a liquid storage tank installed by using the mounting structure. BACKGROUND

[0002] With the continuous development of the agricultural industry and the increasing attention of the country to agriculture, agricultural mechanization has gradually been popularized in some areas of China. Traditional mechanized farming requires a large amount of labor cost, and with the continuous increase of labor cost, automatic driving technology has been applied in the field of agricultural machinery.

[0003] Some existing unmanned vehicles are equipped with a liquid storage tank for spraying medicine or watering crops. In order to realize the spraying of the liquid medicine in the liquid storage tank, a spraying assembly support is usually arranged on the unmanned vehicle. The spraying assembly support is usually arranged on one side of the liquid storage tank, which requires a certain installation space in the horizontal direction of the vehicle body, resulting in a large volume. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide a spraying device and an unmanned vehicle which can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] On the one hand, a spraying device is provided, which comprises a mounting frame, a liquid storage tank and a spraying assembly arranged in sequence from bottom to top. The liquid storage tank is provided with a matching hole penetrating through the liquid storage tank. The spraying assembly is installed above the liquid storage tank through a support penetrating through the matching hole. The support is fixedly installed on the mounting frame.

[0007] Optionally, the liquid storage tank has a first surface and a second surface opposite to each other, and a containing space is formed between the first surface and the second surface. The matching hole penetrates through the liquid storage tank and connects the first surface and the second surface. The first surface abuts against the mounting frame.

[0008] Optionally, a connecting plate is further included, which is fixedly connected with the support, and the spraying assembly is installed on the connecting plate.

[0009] Optionally, a connecting pipe connecting the water outlet of the liquid storage tank and the spraying assembly is further included, and the connecting pipe is arranged in the matching hole.

[0010] And / or, a connecting line connected with the spraying assembly is further included, and the connecting line is arranged in the matching hole.

[0011] Optionally, a through hole is arranged on the connecting plate, and the position of the through hole corresponds to the position of the matching hole.

[0012] Optionally, the support member has a first connecting end and a second connecting end facing away from each other, a first limiting part is arranged on the side of the first connecting end, a second limiting part is arranged on the mounting rack, and the support member is limited relative to the mounting rack by cooperation of the first limiting part and the second limiting part.

[0013] Optionally, a mounting clamp is arranged on the mounting rack, and the support member is arranged between the mounting clamp and the mounting rack.

[0014] Optionally, the first limiting part is a limiting protrusion arranged on the first connecting end, and the second limiting part is a limiting hole arranged on the mounting clamp.

[0015] Optionally, the cooperation hole is a plurality of cooperation holes, and the plurality of cooperation holes are uniformly distributed on the liquid storage tank.

[0016] Optionally, the first surface is formed with a mounting groove, the mounting rack is arranged with a mounting rail corresponding to the mounting groove, and the liquid storage tank can move along the length direction of the mounting rack under cooperation of the mounting groove and the mounting rail.

[0017] Optionally, the mounting rail is arranged with a T-shaped groove, and a T-shaped limiting block is arranged at the groove bottom of the mounting groove, the T-shaped limiting block can be clamped in the T-shaped groove and slide in the T-shaped groove.

[0018] Optionally, the mounting groove is arranged with a mounting hole, and the T-shaped limiting block is clamped in the mounting hole.

[0019] Optionally, the cooperation hole has a hole side wall, and a transition fillet is arranged at the position where the hole side wall is connected with the first surface and the second surface.

[0020] Optionally, a buffer pad is further arranged, the buffer pad is sleeved on the support member and located between the cooperation hole and the support member.

[0021] Optionally, the cross-sectional area of the cooperation hole gradually decreases and then gradually increases in the direction from top to bottom.

[0022] In another aspect, an unmanned vehicle is provided, and the unmanned vehicle is installed with the spraying device.

[0023] The spraying device has the following beneficial effects: in the embodiment, the cooperation hole is arranged on the liquid storage tank, the support member passes through the liquid storage tank to support and install the spraying assembly, so that the spraying assembly can be conveniently arranged above the liquid storage tank, the overall structure of the spraying device is more compact, and the horizontal space occupied is smaller.

[0024] The unmanned vehicle adopting the spraying device of the application is more compact in size, has stronger passing ability in narrow space, and can adapt to more application scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0025] The application will be further described in detail below according to the drawings and embodiments.

[0026] Figure 1 A perspective view of the liquid storage tank structure according to an embodiment of the application;

[0027] Figure 2 Another perspective view of the liquid storage tank structure according to an embodiment of the application;

[0028] Figure 3 Still another perspective view of the liquid storage tank structure according to an embodiment of the application;

[0029] Figure 4 A sectional view of the liquid storage tank structure according to an embodiment of the application;

[0030] Figure 5 A structure diagram of the liquid storage tank mounted on the mounting rack according to an embodiment of the application;

[0031] Figure 6 A top view diagram of the liquid storage tank mounted on the mounting rack according to an embodiment of the application;

[0032] Figure 7 A side view diagram of the liquid storage tank mounted on the mounting rack according to an embodiment of the application;

[0033] Figure 8 A three-dimensional structure diagram of the liquid storage tank mounted on the mounting rack according to an embodiment of the application;

[0034] Figure 9 An exploded state diagram of the liquid storage tank mounted on the mounting rack according to an embodiment of the application;

[0035] Figure 10 A three-dimensional structure diagram of the connecting plate according to an embodiment of the application;

[0036] Figure 11 A Figure 9 A partial enlarged view of I in FIG. 8;

[0037] Figure 12 A three-dimensional structure diagram of the spraying assembly and the liquid storage tank mounted on the mounting rack according to an embodiment of the application;

[0038] Figure 13 A Figure 12 A partial enlarged view of II in FIG. 9;

[0039] In the drawings:

[0040] 100, mounting frame; 110, mounting clamp; 111, second limiting part; 120, mounting rail; 121, T-shaped groove; 200, liquid storage tank; 210, matching hole; 220, first surface; 221, mounting groove; 2211, mounting hole; 222, T-shaped limiting block; 223, hole side wall; 224, transition fillet; 230, second surface; 231, support platform; 300, support piece; 310, first connecting end; 311, first limiting part; 320, second connecting end; 400, connecting plate; 410, through hole; 500, spraying assembly. DETAILED DESCRIPTION

[0041] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects reached more clear, the technical solutions of the embodiments of the present application are further described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] In the description herein, it should be understood that the terms "up", "down", "left", "right", etc. orientation or position relationship, is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", are only used to distinguish in the description, and have no special meaning.

[0045] In the description of the present specification, the description referring to the terms "an embodiment", "an example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0046] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0047] The existing part of the unmanned vehicle is equipped with a liquid storage tank for spraying pesticides or watering crops. In order to realize the spraying of the liquid medicine in the liquid storage tank, a spray assembly support is usually arranged on the unmanned vehicle. The spray assembly support is usually arranged on one side of the liquid storage tank, so that a certain installation space needs to be reserved in the horizontal direction of the vehicle body, and the volume is large.

[0048] Based on the above, the present application provides a spraying device which can realize the installation of the liquid storage tank and the spray assembly through the same structure.

[0049] Specifically, referring to Figures 1-13 The spraying device provided by the present application comprises a mounting bracket 100, a liquid storage tank 200 and a spray assembly 500 arranged in sequence from bottom to top. The liquid storage tank 200 is provided with a matching hole 210 penetrating the liquid storage tank 200. The spray assembly 500 is installed above the liquid storage tank 200 through a support 300 penetrating the matching hole 210. The support 300 is fixedly installed on the mounting bracket 100.

[0050] In the present application, the matching hole 210 is arranged on the liquid storage tank 200, and the support 300 penetrates the liquid storage tank 200 to support and install the spray assembly 500, so that the spray assembly can be conveniently arranged above the liquid storage tank. The overall structure of the spraying device is more compact, and the horizontal space occupied is smaller.

[0051] Further, the support 300 can fix the liquid storage tank 200 while installing the spraying assembly 500, avoiding separately arranging the spraying assembly 500 mounting bracket and the liquid storage tank 200 fixing structure, so that the overall structure is simplified, the structure of the cooperation hole 210 can increase the structural strength of the liquid storage tank 200, the side wall of the cooperation hole 210 can support the liquid storage tank 200, preventing the liquid storage tank 200 from collapsing due to insufficient strength, and at the same time, the inner wall of the cooperation hole 210 has an anti-surge effect inside the liquid storage tank 200, so that the liquid in the liquid storage tank 200 can be hindered by the cooperation hole 210 when a surge is formed, thereby reducing the surge.

[0052] Specifically, referring to Figures 1-3 The liquid storage tank 200 has a first surface 220 and a second surface 230 opposite to each other, and a containing space is formed between the first surface 220 and the second surface 230; the cooperation hole 210 penetrates the liquid storage tank 200 and connects the first surface 220 and the second surface 230, and the first surface 220 abuts against the mounting bracket 100.

[0053] In this embodiment, the mounting bracket 100 mainly supports the liquid storage tank 200, and is used to bear the weight of the liquid storage tank 200 and the spraying assembly 500, and the support 300 is used to limit and fix the liquid storage tank 200 in the horizontal direction and fixedly connect the liquid storage tank 200 and the mounting bracket 100.

[0054] The specific mounting structure of the spraying assembly 500 in this embodiment is shown in Figures 1-9 The second surface 230 is provided with a support platform 231 on one side of the cooperation hole 210, the support platform 231 is provided with a connecting plate 400, one end of the connecting plate 400 is fixedly connected with the support platform 231, the other end is fixedly connected with the support 300, and the spraying assembly 500 is mounted on the connecting plate 400.

[0055] The support platform 231 provides a flat surface for mounting the connecting plate 400, thereby ensuring the positional accuracy between the connecting plate 400 and the support 300 after mounting, and on the other hand, the thickness of the liquid storage tank 200 at this position can be increased, thereby facilitating the pre-setting of a connecting hole at this position, thereby facilitating the mounting of the connecting plate 400.

[0056] Preferably, the embodiment further includes a connecting pipe connecting the water outlet of the liquid storage tank 200 and the spraying assembly 500, and the connecting pipe is arranged in the cooperation hole 210.

[0057] In this application, the connecting pipe is arranged in the internal space of the cooperation hole 210, which can avoid the damage of the connecting pipe caused by the external arrangement of the connecting pipe.

[0058] Preferably, the connecting hole 210 in the present application can also be used for connecting lines, that is, the power lines and control lines for driving the spray assembly 500 can be passed through the connecting hole 210.

[0059] It can be understood that the connecting pipe and the connecting line described above are passed through the connecting hole 210, and the support 300 is a hollow structure, the support 300 is passed through the connecting hole 210, and the connecting line and / or the connecting pipe are passed through the support 300.

[0060] Specifically, the connecting plate 400 is provided with a through hole 410, and the position of the through hole 410 corresponds to the position of the connecting hole 210. The through hole 410 is sleeved outside the support 300.

[0061] By arranging the through hole 410 corresponding to the position of the mounting hole 2211 on the connecting plate 400, the mounting hole 2211 is not blocked, so that the connecting pipe for connecting the liquid storage tank 200 and the spray assembly 500 and the power line and control line for driving the spray assembly 500 can be passed through.

[0062] It can be understood that the connecting pipe in the embodiment of the present application can be a water pipe or a wire pipe, or simultaneously include a water pipe and a wire pipe.

[0063] Figure 9 The specific structure of the support 300 and the specific connection relationship between the support 300 and the mounting frame 100, the liquid storage tank 200 and the spray assembly 500 are shown in FIG. 8. The support 300 has a first connecting end 310 and a second connecting end 320 facing away from each other. The side of the first connecting end 310 is provided with a first limiting portion 311, and the mounting frame 100 is provided with a second limiting portion 111. The support 300 is limited relative to the mounting frame 100 by cooperating the first limiting portion 311 with the second limiting portion 111.

[0064] In the embodiment of the present application, the first connecting end 310 extends below the first surface 220 for fixed connection with the mounting frame 100. Specifically, referring to FIG. 8, the mounting frame 100 is provided with a mounting clamp 110, and the support 300 is passed between the support clamp and the mounting frame 100. Figures 5-11

[0065] ​In the process of assembling the liquid storage tank 200 and the mounting frame 100, first, the mounting clamp 110 is preliminarily installed on the cross beam, the liquid storage tank 200 is placed at the preset position on the mounting frame 100, at this time, the clamping hole formed between the mounting clamp 110 and the mounting frame 100 corresponds to the matching hole 210 on the liquid storage tank 200, then the support 300 can be arranged in the matching hole 210 and the clamping hole, and the first limiting part 311 and the second limiting part 111 are in position correspondence, then the connecting screw between the mounting clamp 110 and the mounting frame 100 is locked, so that the mounting buckle is buckled on the support 300, and the first limiting part 311 and the second limiting part 111 realize limiting cooperation.

[0066] Specifically, referring to Figure 9 The first limiting part 311 in the embodiment of the application is a limiting protrusion arranged on the first connecting end 310, and the second limiting part 111 is a limiting hole arranged on the mounting clamp 110.

[0067] It can be understood that the first limiting part 311 is a limiting protrusion, and the second limiting part 111 is a limiting hole, which is not as a limitation on the application, and in other embodiments, the first limiting part 311 can be arranged as a limiting hole, and the first limiting part 311 is arranged as a limiting protrusion matched therewith.

[0068] Further, the limiting protrusion can also adopt an elastic and telescopic structure, and in the case of adopting an elastic and telescopic structure as the limiting protrusion, the limiting protrusion preferably adopts a spherical protrusion, and under this structure, the support 300 can be disassembled in the locked state of the mounting clamp 110 and the mounting frame 100, which can improve the replacement efficiency.

[0069] The matching hole 210 in the embodiment of the application is a plurality of matching holes 210, and the plurality of matching holes 210 are uniformly distributed on the liquid storage tank 200.

[0070] In the case of a plurality of matching holes 210, the structures of all the matching holes 210 can be the same or different, for example, all the matching holes 210 can be two specifications of matching holes 210, and the matching holes 210 of the same specification are uniformly and symmetrically distributed along the center line of the length direction of the liquid storage tank 200.

[0071] Preferably, referring to Figures 1-9 The matching hole 210 in the embodiment of the application is four, and the matching holes 210 of the same specification are symmetrically distributed along the center line of the length direction of the liquid storage tank 200.

[0072] It is understood that the fact that there are multiple mating holes 210 does not limit this solution. In other embodiments of the present application, a solution with only one mating hole 210 may also be adopted. When there is only one mating hole 210, it is necessary to place the mating hole 210 at the geometric center of the liquid storage tank 200 as much as possible, and to avoid setting the mating hole 210 in a rotating body structure as much as possible. In the case of a single mating hole 210, placing the mating hole 210 at the geometric center of the liquid storage tank 200 can ensure the best possible force balance when the liquid storage tank 200 is fixed through the mating hole 210, avoiding problems such as tilting of the liquid storage tank 200 due to uneven force, deformation and damage caused by excessive load on the mating hole 210, etc. At the same time, setting the single mating hole 210 as a non-rotating body structure can prevent the liquid storage tank 200 from rotating along the circumference of the mating hole 210.

[0073] Further, refer to Figure 3 As shown, the first surface 220 is formed with a mounting groove 221, and a mounting rail 120 is provided on the mounting frame 100 corresponding to the mounting groove 221. The liquid storage tank 200 can move along the length direction of the mounting frame 100 when the mounting groove 221 cooperates with the mounting rail 120.

[0074] In the present application, the pre-positioning of the liquid storage tank 200 and the mounting frame 100 is achieved by cooperating with the mounting groove 221 and the mounting guide rail 120, so that the liquid storage tank 200 is stuck on the mounting frame 100 and is limited in the width direction of the mounting frame 100. The installation position in this direction can be adjusted by sliding along the length direction of the mounting frame 100, so that the matching hole 210 on the liquid storage tank 200 corresponds to the installation position on the mounting frame 100.

[0075] Specifically, refer to Figures 7-13 As shown, in the embodiment of the present application, there are two mounting rails 120, which are arranged parallel to each other along the length of the mounting frame 100. The mounting rails 120 are provided with T-slots 121, and the bottom of the mounting slots 221 is provided with T-shaped limit blocks 222. The T-shaped limit blocks 222 can be snapped into the T-slots 121 and slide in the T-slots 121.

[0076] In this embodiment, the T-shaped limit block 222 is installed in such a manner that a mounting hole 2211 is provided on the mounting slot 221 , and the T-shaped limit block 222 is snapped into the mounting hole 2211 .

[0077] Preferably, the T-shaped limiting block 222 in the embodiment of the present application is clamped in the mounting hole 2211 through the elastic part. The mounting mode of the elastic clamping can provide a certain error space for the cooperation of the T-shaped limiting block and the T-shaped slot 121, and meanwhile, the dismounting of the T-shaped limiting block and the mounting hole 2211 is more convenient.

[0078] Further, the matching hole 210 has a hole side wall 223, and a transition fillet 224 is arranged at a position where the hole side wall 223 is connected with the first surface 220 and the second surface 230.

[0079] The transition fillet 224 arranged on the first surface 220 in the embodiment of the present application can be used for guiding when the support 300 is inserted into the matching hole 210, and the gap between the transition fillet 224 and the support 300 can be filled with a buffer, so that a flexible connection is formed between the storage tank 200 and the support 300, the shaking caused by the too large gap between the two is avoided, and meanwhile, the hard contact between the support 300 and the storage tank 200 is avoided, and the damage to the storage tank 200 caused by the friction generated when the relative movement occurs is avoided.

[0080] Optionally, the embodiment of the present application further includes a buffer pad, which is sleeved on the support 300 and located between the matching hole 210 and the support 300.

[0081] Filling the gap between the matching hole 210 and the support 300 can effectively prevent the shaking of the storage tank 200 relative to the support 300. Meanwhile, the diameter of the matching hole 210 can be greater than the diameter of the support 300, so that the support 300 can be easily inserted into the matching hole 210.

[0082] Preferably, referring to FIG. 2, Figure 4 Preferably, the cross-sectional area of the matching hole 210 in the embodiment of the present application gradually decreases and then gradually increases in the direction from top to bottom. In this way, the assembly of the matching hole 210 and the support 300 can be facilitated.

[0083] Meanwhile, the embodiment of the present application provides an unmanned vehicle, which is provided with the spraying assembly 500 through the spraying device as described above. In some embodiments, the mounting rack 100 can be part of the body of the unmanned vehicle.

[0084] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be explained as limitations on the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative labor, and these embodiments will all fall within the protection scope of the present application.

Claims

1. A spray device, characterized in that The device comprises a mounting rack (100), a liquid storage tank (200) and a spraying assembly (500) arranged in sequence from bottom to top, the liquid storage tank (200) is provided with a matching hole (210) penetrating through the liquid storage tank (200), and the spraying assembly (500) is installed above the liquid storage tank (200) through a support (300) penetrating through the matching hole (210), and the support (300) is fixedly installed on the mounting rack (100).

2. The spray device of claim 1, wherein, The liquid storage tank (200) has a first surface (220) and a second surface (230) opposite to each other, and a containing space is formed between the first surface (220) and the second surface (230); the matching hole (210) penetrates through the liquid storage tank (200) and connects the first surface (220) and the second surface (230), and the first surface (220) abuts against the mounting rack (100).

3. The spray device of claim 1, wherein, The device further comprises a connecting plate (400) fixedly connected with the support (300), and the spraying assembly (500) is installed on the connecting plate (400).

4. The spray device of claim 1, wherein, The device further comprises a connecting pipe connecting a water outlet of the liquid storage tank (200) and the spraying assembly (500), and the connecting pipe is arranged in the matching hole (210); And / or, the device further comprises a connecting line connected with the spraying assembly (500), and the connecting line is arranged in the matching hole (210).

5. The spray device of claim 3, wherein, The connecting plate (400) is provided with a through hole (410) corresponding in position to the matching hole (210).

6. The spray device according to any one of claims 1-5, wherein, The support (300) has a first connecting end (310) and a second connecting end (320) opposite to each other, a first limiting portion (311) is arranged on a side of the first connecting end (310), a second limiting portion (111) is arranged on the mounting rack (100), and the support (300) is limited relative to the mounting rack (100) by cooperation of the first limiting portion (311) and the second limiting portion (111).

7. The spray device of claim 6, wherein, The mounting rack (100) is provided with a mounting clamp (110), and the support (300) is arranged between the mounting clamp (110) and the mounting rack (100).

8. The spray device of claim 7, wherein, The first limiting portion (311) is a limiting protrusion arranged on the first connecting end (310), and the second limiting portion (111) is a limiting hole arranged on the mounting clamp (110).

9. The spray device of any one of claims 1-5, wherein, The matching hole (210) is a plurality of holes, and the plurality of matching holes (210) are uniformly distributed on the liquid storage tank (200).

10. The spray device of claim 2, wherein, The first surface (220) is formed with a mounting groove (221), the mounting rack (100) is provided with a mounting guide rail (120) corresponding to the mounting groove (221), and the liquid storage tank (200) can move along the length direction of the mounting rack (100) under cooperation of the mounting groove (221) and the mounting guide rail (120).

11. The spray device of claim 10, wherein, A T-shaped slot (121) is arranged on the mounting rail (120), and a slot bottom of the mounting slot (221) is provided with a T-shaped limiting block (222) which can be clamped in and slide in the T-shaped slot (121).

12. The spray device of claim 11, wherein, An installation hole (2211) is arranged on the mounting slot (221), and the T-shaped limiting block (222) is clamped in the installation hole (2211).

13. The spray device of claim 2, wherein, The matching hole (210) has a hole side wall (223), and a transition round corner (224) is arranged at a position where the hole side wall (223) is connected with the first surface (220) and the second surface (230).

14. The spray device of claim 1, wherein, A buffer pad is further included, which is sleeved on the support (300) and located between the matching hole (210) and the support (300).

15. The spray device of claim 1, wherein, A cross-sectional area of the matching hole (210) gradually decreases and then gradually increases in a direction from top to bottom.

16. An unmanned vehicle, comprising: The spray device of any one of claims 1-15 is installed with a spray assembly (500).

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