Spraying device and spraying equipment

Abstract

The invention provides a spraying device and spraying equipment. The spraying device comprises a box body, a spraying rod structure and a driving assembly, and the box body is used for containing liquid; the spraying rod structure is connected with the box body and comprises a plurality of pipe fittings which are sequentially connected in a sleeved mode, each pipe fitting is provided with at least one spraying head, and every two adjacent pipe fittings in the radial direction can relatively slide so as to adjust the overall length of the spraying rod structure and the number of the exposed spraying heads; the driving assembly is connected with the box body and is used for applying pressure to the liquid in the box body, so that the liquid has pressure energy to flow into the spray rod structure; the liquid flowing into the spray rod structure pushes the spray rod structure to extend under the action of pressure energy, and the liquid is guided to be sprayed out through the exposed spray head. The pressure applied to the liquid by the driving assembly enables the liquid to have pressure energy, and the pressure energy not only can enable the liquid in the box body to enter the spray rod assembly, but also can enable the liquid entering the spray rod assembly to push the spray rod assembly to extend, so that an independently arranged motor for driving the length of the spray rod assembly to be adjusted can be reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of spraying devices, and in particular to a spraying device and a spraying equipment. Background Art

[0002] A spraying device is a device used to spray liquids (such as water, medicine, etc.) and is commonly used in agriculture, gardening, health and epidemic prevention and other fields.

[0003] In related art, the boom length of a spraying device is adjustable to allow spraying of varying sizes. However, this adjustment is achieved through a separate motor. This not only complicates the spraying device's structure and increases its manufacturing cost, but also requires electrical power during spraying, resulting in high operating costs. Summary of the Invention

[0004] The present disclosure provides a spraying device and a spraying equipment, and a technical problem to be solved is to simplify the structure of the spraying device and reduce the manufacturing cost and the use cost of the spraying device.

[0005] In a first aspect, the present disclosure provides a spraying device, which may include: a box body, a spray rod structure and a drive assembly, wherein the box body is used to contain liquid; the spray rod structure is connected to the box body, including: a plurality of pipe fittings that are sequentially sleeved, each pipe fitting is provided with at least one nozzle, and two radially adjacent pipe fittings can slide relative to each other to adjust the overall length of the spray rod structure and the number of exposed nozzles; the drive assembly is connected to the box body, and is used to apply pressure to the liquid in the box body so that the liquid has pressure energy to flow into the spray rod structure; wherein the liquid flowing into the spray rod structure pushes the spray rod structure to extend under the action of the pressure energy, and guides the liquid to be sprayed out through the exposed nozzles.

[0006] In some embodiments, among the multiple pipe fittings, two radially adjacent pipe fittings are respectively an outer pipe fitting and an inner pipe fitting; the outer pipe fitting has a first inner wall, a second inner wall and a third inner wall adjacent to each other in sequence, the first inner wall and the third inner wall are opposite to each other, and are respectively provided with a first flow guide and a second flow guide, the second inner wall is provided with a first rack opposite to the first flow guide and a second rack opposite to the second flow guide, and the first rack and the second rack are located on both sides of the multiple nozzles on the outer pipe fitting; the inner pipe fitting is provided with a first gear and a second gear, the first gear is engaged with the first rack, and the second gear is engaged with the second rack; wherein, the first inner wall, the first flow guide and the first gear cooperate to form a first channel, and the third inner wall, the second flow guide and the second gear cooperate to form a second channel.

[0007] In some embodiments, before the pressure can push the spray bar structure to extend, the spray heads of the outer pipe and the inner pipe are staggered and the outer pipe seals the spray heads of the inner pipe.

[0008] In some embodiments, the spray boom structure further includes: a reset member, which is arranged in the outer tube member and is connected to the outer tube member and the inner tube member respectively, and when the inner tube member slides toward the outside of the outer tube member to extend the spray boom structure, the reset member provides a reset force to the inner tube member in the opposite direction of the sliding direction of the inner tube member.

[0009] In some embodiments, the spray boom structure further includes: a fixing part, which is arranged on the surface of the inner tube member facing away from the second inner wall, and is attached to the inner wall of the outer tube member on the side of the first guide member and the second guide member facing away from the second inner wall, and the fixing part is provided with a plurality of third channels parallel to the length direction of the inner tube member; wherein the reset member is a spring, and one end of a plurality of the reset members is respectively connected to the fixing part, and the other end is connected to the end of the outer tube member away from the box body.

[0010] In some embodiments, the multiple pipe fittings include: a first pipe fitting, a second pipe fitting and a third pipe fitting; one end of the first pipe fitting is connected to the box body and communicates with the interior of the box body, and the other end is provided with a telescopic opening; the second pipe fitting is sleeved in the first pipe fitting, and one end corresponding to the telescopic opening abuts against a circle of inner surface of the telescopic opening, and is provided with a first annular sealing member; the third pipe fitting is sleeved in the second pipe fitting, and the target end corresponding to the first sealing member abuts against a circle of inner surface of the first sealing member, and is provided with a second sealing member for sealing the target end; wherein, the pressure can push the third pipe fitting and the second pipe fitting to extend out of the telescopic opening in sequence, thereby guiding the liquid to be sprayed out through the nozzle of each pipe fitting.

[0011] In some embodiments, the spraying device may further include: a plurality of distance acquisition components and a plurality of image acquisition components, wherein the plurality of distance acquisition components are respectively arranged at one end of the first tube away from the box body, one end of the second tube away from the box body, and one end of the third tube away from the box body; the plurality of image acquisition components are respectively arranged at one end of the first tube away from the box body, one end of the second tube away from the box body, and one end of the third tube away from the box body; wherein the acquisition surface of the distance acquisition component, the acquisition surface of the image acquisition component, and the ejection surface of the nozzle are arranged on the same side.

[0012] In a second aspect, the present disclosure provides a spraying device, which may include: a supporting body, a first driving device and a plurality of spraying devices as described in any embodiment of the first aspect, wherein the first driving device is arranged on the supporting body to drive the supporting body to move; the spraying device is arranged on the supporting body, and the spraying areas of different spraying devices at least partially do not overlap.

[0013] In some embodiments, the spraying device may further include: a plurality of second driving devices, respectively connecting the plurality of the spraying devices to the supporting body, so as to respectively drive the corresponding spraying devices to move relative to the supporting body.

[0014] In some embodiments, the length direction of the spray boom structure on the spray device is a first direction, and the second driving device is used to drive the spray device to reciprocate in a second direction perpendicular to the first direction; the spraying equipment also includes: a connecting column and a plurality of connecting parts; the connecting column is arranged on the supporting body, and its extension direction is parallel to the second direction; one end of the plurality of connecting parts is connected to the connecting column, and the other end is respectively connected to the end of the plurality of spray boom structures away from the box body, and can be extended and retracted with the extension and retraction of the spray boom structure.

[0015] Through the above technical solution, the present disclosure provides a spraying device and spraying equipment. The spraying device may include: a housing, a spray boom structure, and a drive assembly. The housing may provide liquid to be sprayed. The drive assembly may provide pressure to the liquid in the housing, imparting pressure energy to the liquid. This pressure energy enables the liquid in the housing to enter the spray boom structure. After entering the spray boom structure, the drive assembly may provide a driving force to the spray boom structure, thereby extending the length of the spray boom structure and guiding the liquid in the spray boom structure to be sprayed out through a nozzle on the spray boom structure. In this way, the drive assembly not only causes the liquid in the housing to be sprayed out through the nozzle of the spray boom structure, but also causes the length of the spray boom structure to be extended, thereby eliminating the need for a separate motor to drive the extension of the spray boom structure, simplifying the structure of the spraying device, and reducing the manufacturing cost and use cost of the spraying device.

[0016] The above description is only an overview of the technical solution of the present disclosure. In order to more clearly understand the technical means of the present disclosure and to implement them according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A schematic structural diagram of the spraying device provided by the present invention (installed on a rigid connecting plate);

[0019] Figure 2 A schematic diagram of a partially exploded structure of a spraying device provided by the present disclosure;

[0020] Figure 3 Schematic diagram of the local structure of the spraying device provided by the present invention Figure 1 ;

[0021] Figure 4 Schematic diagram of the local structure of the spraying device provided by the present invention Figure 2 ;

[0022] Figure 5 Schematic diagram of the local structure of the spraying device provided by the present invention Figure 3 ;

[0023] Figure 6 A schematic cross-sectional view of a spraying device provided by the present disclosure;

[0024] Figure 7 A schematic structural diagram of the spraying equipment provided by the present disclosure;

[0025] Figure 8 Schematic diagram of the local structure of the spraying equipment provided by the present invention Figure 1 ;

[0026] Figure 9 Schematic diagram of the local structure of the spraying equipment provided by the present invention Figure 2 ;

[0027] Figure 10 Schematic diagram of the local structure of the spraying equipment provided by the present invention Figure 3 ;

[0028] Figure 11 Schematic diagram of the local structure of the spraying equipment provided by the present invention Figure 4 .

[0029] Description of reference numerals:

[0030] 10. Spraying device; 11. Housing; 111. First opening; 12. Spray rod structure; 121. Pipe fitting; 121A. First pipe fitting; 121B. Second pipe fitting; 121C. Third pipe fitting; 122. Inner pipe fitting; 1221. First gear; 1222. Second gear; 1223. Second blocking member; 1224. Stop block; 123. Outer pipe fitting; 1231. First inner wall; 1232. Second inner wall; 1233. Third inner wall; 1234. First flow guide; 1235. Second flow guide; 1236. First rack; 1237. Second rack; 1238. First channel; 1239. Second Channel; 1240, fourth inner wall; 1241, telescopic opening; 1242, first blocking member; 1243, hanging ring; 125, reset member; 126, fixing member; 1261, third channel; 1262, fourth channel; 13, driving assembly; 131, centrifugal pump; 14, distance acquisition assembly; 15, image acquisition assembly; 20, supporting body; 30, first driving device; 301, wheel; 40, second driving device; 401, transmission chain; 402, rigid connecting plate; 403, sprocket; 404, bracket; 50, control device; 60, connecting column; 601, roller; 100, spraying equipment. DETAILED DESCRIPTION

[0031] The following embodiments of the present disclosure are further described in detail with reference to the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0032] The present disclosure provides these embodiments in order to make this disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0033] It should be noted that, in the description of this disclosure, unless otherwise specified, "plurality" means greater than or equal to two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are intended solely to facilitate and simplify the description of this disclosure, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0034] In addition, the terms "first," "second," and similar terms used in this disclosure do not denote any order, quantity, or importance, but are merely used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements.

[0035] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this disclosure depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0036] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0037] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0038] A spraying device is a device used to spray liquids (such as water, medicine, etc.) and is commonly used in agriculture, gardening, health and epidemic prevention and other fields.

[0039] In related art, the boom length of a spraying device is adjustable to allow spraying of varying sizes. However, this adjustment is achieved through a separate motor. This not only complicates the spraying device's structure and increases its manufacturing cost, but also requires electrical power during spraying, resulting in high operating costs.

[0040] The inventors of the present disclosure have discovered that a spray device can be designed, comprising: a housing, a boom structure, and a drive assembly. The drive assembly can apply pressure to liquid within the housing, imparting pressure energy to the liquid. This pressure energy not only causes the liquid within the housing to enter the boom structure, but also causes the liquid entering the boom structure to extend the boom structure, thereby increasing the overall length of the boom structure and the number of nozzles exposed on the boom structure, and directing the liquid within the boom structure to be sprayed out through the exposed nozzles on the boom structure. Thus, by sharing the drive assembly that causes the liquid within the housing to be sprayed out through the nozzles, the boom structure can be extended, eliminating the need for a separate motor to extend the boom structure, simplifying the structure of the spray device, and reducing the manufacturing and operating costs of the spray device.

[0041] First aspect

[0042] The present disclosure provides a spraying device 10, see Figures 1 to 11 The spraying device 10 may include: a box body 11, a spray rod structure 12 and a drive assembly 13, the box body 11 is used to contain liquid; the spray rod structure 12 is connected to the box body 11, including: a plurality of pipe fittings 121 that are sequentially sleeved, each pipe fitting 121 is provided with at least one nozzle, and two radially adjacent pipe fittings 121 can slide relative to each other to adjust the overall length of the spray rod structure 12 and the number of exposed nozzles; the drive assembly 13 is connected to the box body 11, and is used to apply pressure to the liquid in the box body 11, so that the liquid has pressure energy to flow into the spray rod structure 12; wherein, the liquid flowing into the spray rod structure 12 pushes the spray rod structure 12 to extend under the action of pressure energy, and guides the liquid to be sprayed out through the exposed nozzles.

[0043] The box body 11 is used to hold liquid. The liquid can be a liquid containing chemical agents (such as pesticides, disinfectants, etc.), water for cooling, or a liquid with other functions. When the box body 11 is used to hold liquid medicine, the box body 11 can be made of corrosion-resistant materials to reduce the phenomenon that the box body 11 is corroded by the liquid medicine and shortens its life. The box body 11 can be provided with a first opening 111. Liquid can be injected into the box body 11 through the first opening 111. The liquid in the box body 11 can also be sent out through the first opening 111. The inside of the box body 11 can also be cleaned through the first opening 111. For example, the first opening 111 is connected to the spray bar structure 12 so that when the liquid in the box body 11 is under pressure applied by the drive assembly 13, it enters the spray bar structure 12 through the first opening 111.

[0044] The spray bar structure 12 is connected to the housing 11 and communicates with the space inside the housing 11, and a nozzle is provided on it, so that the internal space of the housing 11, the internal space of the spray bar structure 12 and the nozzle form a flow path for the liquid. When the liquid in the housing 11 is subjected to pressure (such as the pressure applied by the drive component 13), the liquid in the housing 11 can be sprayed along the flow path to target areas such as farmland and air that need to be sprayed with pesticides, and the ground and air that need to be cooled. The multiple pipes 121 of the spray bar structure 12 can be sequentially socketed in an arrangement from the inside to the outside. After socketing, two pipes 121 adjacent to each other in the radial direction of the spray bar structure 12 (such as the inner pipe 122 and the outer pipe 123 socketed outside the inner pipe 122) can be arranged in the length direction of the spray bar structure 12 (such as the outer pipe 123) in the length direction of the spray bar structure 12. Figure 1 The spray boom structure 12 can be extended by sliding the inner tube 122 relative to the outer tube 123 and outward from the outer tube 123 (e.g., along the X direction). The nozzles on the slid-out portion of the inner tube 122 are exposed, thereby increasing the number of nozzles actually participating in spraying by the spray boom structure 12 and thereby increasing the spraying area. After the inner tube 122 slides relative to the outer tube 123 and inward from the outer tube 123 (e.g., in a direction opposite to the X direction), the spray boom structure 12 can be restored to its pre-extended length. The axes of the multiple tubes 121 of the spray boom structure 12 can coincide, or be coaxially arranged, to ensure a smoother extension and contraction of the spray boom structure 12.

[0045] The driving assembly 13 is used to provide driving force to the liquid in the box 11 so that the liquid can enter the spray boom structure 12, thereby extending the spray boom structure 12 and guiding the liquid in the spray boom structure 12 to be sprayed out through the nozzle on the spray boom structure 12. The driving assembly 13 may include: a centrifugal pump 131 (such as Figure 10 As shown in FIG. 1 , a centrifugal pump 131 is disposed on the housing 11 and applies pressure to the liquid within the housing 11. Alternatively, the drive assembly 13 may include an agitator that stirs the liquid within the housing 11 to apply pressure to the liquid within the housing 11. The pressure applied to the liquid by the drive assembly 13 is adjustable to enable expansion and contraction of the boom structure 12. For example, the motor driving the centrifugal pump 131 may have different power outputs, thereby varying the rotational speed of the centrifugal pump 131 to apply different pressures to the liquid within the housing 11. Switching between different pressures allows expansion and contraction of the boom structure 12.

[0046] In one example, a vehicle is provided with multiple spraying devices 10, and the nozzles on different spraying devices 10 correspond to farmlands at different locations. The spraying device 10 may include: a box 11, a spray boom structure 12, and a drive assembly 13. The box 11 is used to contain liquid medicine; the spray boom structure 12 extends in a horizontal direction, and one end is connected to the box 11, including: three coaxial pipes 121 that are sequentially sleeved, and each pipe 121 is provided with multiple nozzles arranged along the length direction of the pipe 121 and facing downward. Two pipes 121 adjacent to each other in the radial direction of the spray boom structure 12 can slide relative to each other. The overall length of the boom structure 12 and the number of exposed nozzles can be adjusted. The drive assembly 13 includes a centrifugal pump 131, which is disposed on the housing 11 and is used to apply pressure to the liquid medicine within the housing 11, imparting pressure energy to the liquid medicine and allowing it to flow into the boom structure 12. The pressure energy of the liquid medicine flowing into the boom structure 12 can propel the boom structure 12 to extend and direct the liquid medicine to be sprayed through the nozzles of at least two pipes 121. When the drive assembly 13 stops, an operator can manually push the boom structure 12 back to its pre-extended length. Because the weight and dimensions of the inner pipe 122 of the three pipes 121 are smaller than the weight and dimensions of the outer pipe 123 radially adjacent to the inner pipe 122, during the extension of the boom structure 12, the multiple pipes 121 extend sequentially from the inside to the outside along the radial direction of the boom structure 12.

[0047] In this embodiment, the spraying device 10 may include: a housing 11, a spray boom structure 12, and a drive assembly 13. The housing 11 may provide liquid to be sprayed, and the drive assembly 13 may provide pressure to the liquid in the housing 11, imparting pressure energy to the liquid. This pressure energy enables the liquid in the housing 11 to enter the spray boom structure 12. After entering the spray boom structure 12, the drive assembly 13 may provide a driving force to the spray boom structure 12, thereby extending the length of the spray boom structure 12 and guiding the liquid in the spray boom structure 12 to be sprayed out through the nozzles on the spray boom structure 12. In this manner, the drive assembly 13 may not only cause the liquid in the housing 11 to be sprayed out through the nozzles of the spray boom structure 12, but may also extend the length of the spray boom structure 12, thereby eliminating the need for a separate motor to drive the extension of the spray boom structure 12, simplifying the structure of the spraying device 10, and reducing the manufacturing and operating costs of the spraying device 10.

[0048] In some embodiments, see Figures 2 to 6Among the multiple pipes 121, two radially adjacent pipes 121 are respectively an outer pipe 123 and an inner pipe 122; the outer pipe 123 has a first inner wall 1231, a second inner wall 1232, and a third inner wall 1233 adjacent to each other in sequence. The first inner wall 1231 and the third inner wall 1233 are opposite to each other and are respectively provided with a first flow guide 1234 and a second flow guide 1235. The second inner wall 1232 is provided with a first rack 1236 opposite to the first flow guide 1234 and a second rack 1237 opposite to the second flow guide 1235. The first rack 1236 and the second rack 1237 are located on both sides of the multiple nozzles on the outer tube 123; the inner tube 122 is provided with a first gear 1221 and a second gear 1222, the first gear 1221 is engaged with the first rack 1236, and the second gear 1222 is engaged with the second rack 1237; wherein, the first inner wall 1231, the first guide member 1234 and the first gear 1221 cooperate to form a first channel 1238, and the third inner wall 1233, the second guide member 1235 and the second gear 1222 cooperate to form a second channel 1239.

[0049] That is, the multiple pipes 121 of the boom structure 12 include multiple sets of pipe combinations, each set of pipe combinations includes an outer pipe 123 and an inner pipe 122 sleeved inside the outer pipe 123, and any pipe 121 located between the innermost and outermost sides of the boom structure 12 in the radial direction is both an outer pipe 123 and an inner pipe 122; for example: see Figure 5 and Figure 6 The boom structure 12 includes three pipes 121, namely a first pipe 121A, a second pipe 121B and a third pipe 121C. The second pipe 121B is coaxially arranged in the first pipe 121A, and the third pipe 121C is coaxially arranged in the second pipe 121B. The first pipe 121A is the outermost pipe 121, and the third pipe 121C is the innermost pipe 121. The boom structure 12 includes two sets of pipe combinations. One set of pipe combinations includes: adjacent first pipes 12 1A and the second pipe fitting 121B, in this combination, the first pipe fitting 121A is the outer pipe fitting 123, and the second pipe fitting 121B is the inner pipe fitting 122; another group of pipe fitting combinations includes: the second pipe fitting 121B and the third pipe fitting 121C, in this combination, the second pipe fitting 121B is the outer pipe fitting 123, and the third pipe fitting 121C is the inner pipe fitting 122; the second pipe fitting 121B is located between the innermost and outermost sides, so as to have different roles as the outer pipe fitting 123 or the inner pipe fitting 122 in the two pipe fitting combinations.

[0050] The inner contour cross-section of the outer tube 123 can be rectangular, so that the outer tube 123 has a first inner wall 1231, a second inner wall 1232, a third inner wall 1233 and a fourth inner wall 1240 adjacent to each other in sequence, the first inner wall 1231 and the third inner wall 1233 are opposite, and the second inner wall 1232 and the fourth inner wall 1240 are opposite. A first length space parallel to the length direction (e.g., X direction) of the spray boom structure 12 is provided between the first inner wall 1231 and the inner tube 122. A first flow guide 1234 and a first rack 1236 extending along the length direction of the first length space and facing each other are provided in the length space. The first gear 1221 on the inner tube 122 is correspondingly engaged with the first rack 1236 between the first flow guide 1234 and the first rack 1236, and is spaced apart from the first flow guide 1234, so as to form a first channel 1238 between the first flow guide 1234, the first inner wall 1231, the first gear 1221, and the surfaces of the inner tube 122 facing the first inner wall 1231. The same arrangement is provided on the second flow guide 123 5. A second channel 1239 is formed between the third inner wall 1233, the second gear 1222, and the surface of the inner tube 122 opposite the third inner wall 1233. The first channel 1238 and the second channel 1239 are located on either side of the inner tube 122 in the longitudinal direction. Thus, after liquid in the housing 11 enters the boom structure 12, it converges and enters the first channel 1238 and the second channel 1239, respectively. Under pressure, the liquid provides a first driving force and a second driving force to the first gear 1221 and the second gear 1222, respectively, driving the first gear 1221 to rotate along the first rack 1236 and the second gear 1222 to rotate along the second rack 1237, thereby extending the boom structure 12. After the spraying operation is completed, the inner tube 122 can be manually pushed to slide into the outer tube 123, allowing the boom structure 12 to return to its pre-extended length.

[0051] The second inner wall 1232 may be the lower surface of the outer tube 123, so that the first rack 1236 and the second rack 1237 are respectively located below the first gear 1221 and the second gear 1222, so that the first rack 1236 and the first gear 1221 can be kept in meshing state, and the second rack 1237 and the second gear 1222 can be kept in meshing state. The first guide 1234 and the second guide 1235 may be as follows Figure 6The outer tube 123 is shown as being integrally formed with the outer tube 123, which can improve the structural strength of the outer tube 123. A plurality of nozzles can be disposed between the first rack 1236 and the second rack 1237, and the arrangement direction of the plurality of nozzles can be parallel to the extension direction of the first rack 1236. The first gear 1221 and the second gear 1222 can be symmetrically arranged with respect to the inner tube 122, and the first channel 1238 and the second channel 1239 can be symmetrically arranged with respect to the inner tube 122. In this way, the magnitudes of the first and second driving forces generated are similar, and they drive the first gear 1221 and the second gear 1222 of the same magnitude to rotate, thereby achieving the purpose of smoothly pushing the inner tube 122 to slide relative to the outer tube 123.

[0052] In this embodiment, adjacent outer tubes 123 and inner tubes 122 slide relative to each other under the cooperation of the rack and the gear, so that the spray boom structure 12 can be extended or shortened, and the engagement of the rack and the gear makes the spray boom structure 12 more stable during the extension process.

[0053] In some embodiments, before the pressure can push the spray boom structure 12 to extend, the spray heads of the outer tube 123 and the spray heads of the inner tube 122 are staggered and distributed, and the outer tube 123 closes the spray heads of the inner tube 122 .

[0054] In other words, when the spray boom structure 12 is at its initial length, the inner surface of the outer tube 123 is opposite to the nozzle of the inner tube 122 to close the nozzle of the inner tube 122, which can reduce the probability of the liquid entering the inner tube 122 entering the outer tube 123 through the nozzle of the inner tube 122, thereby allowing the liquid entering the inner tube 122 to preferentially push the inner tube 122 to slide outward from the outer tube 123, so as to quickly extend the length of the spray boom structure 12.

[0055] In some embodiments, see Figures 2 to 4 The spray boom structure 12 also includes: a reset member 125, which is arranged in the outer pipe 123 and is connected to the outer pipe 123 and the inner pipe 122 respectively. When the inner pipe 122 slides toward the outside of the outer pipe 123 to extend the spray boom structure 12, the reset member 125 provides a reset force to the inner pipe 122 in the opposite direction of the sliding direction of the inner pipe 122.

[0056] That is to say, when the spray boom structure 12 is extended, the inner tube 122 slides outward from the outer tube 123, and at the same time, the reset member 125 provides a reset force to the inner tube 122 to make the inner tube 122 slide into the outer tube 123, so that when the drive assembly 13 stops providing pressure energy, the inner tube 122 can slide into the outer tube 123 by itself under the reset force of the reset member 125, so that the spray boom structure 12 can be easily restored to the length before extension.

[0057] In some embodiments, see Figures 2 to 4 The spray boom structure 12 also includes: a fixing member 126, which is arranged on the surface of the inner tube 122 facing away from the second inner wall 1232, and is attached to the inner wall of the outer tube 123 on the side of the first guide member 1234 and the second guide member 1235 facing away from the second inner wall 1232, and the fixing member 126 is provided with a plurality of third channels 1261 parallel to the length direction of the inner tube 122; wherein the reset member 125 is a spring, and one end of the plurality of reset members 125 is respectively connected to the fixing member 126, and the other end is connected to the end of the outer tube 123 away from the box body 11.

[0058] Here, the fixing member 126 is connected to the inner pipe member 122 (eg Figure 6 The second tube member 121B is formed as an integral part as shown in the figure and is attached to the fourth inner wall 1240, part of the first inner wall 1231 and part of the third inner wall 1233 of the outer tube member 123, so that when the inner tube member 122 slides relative to the outer tube member 123, the inner wall of the outer tube member 123 forms a guide surface for the sliding of the inner tube member 122, making the sliding of the inner tube member 122 more stable.

[0059] A plurality of third channels 1261 are provided on the fixing member 126, which can reduce the pressure exerted on the outer tube member 123 by the weight of the fixing member 126 itself, and the reset member 125 is a spring, which has a light mass and can also reduce the pressure exerted on the outer tube member 123 by the weight of the fixing member 126 itself. In this way, the liquid entering the outer tube member 123 overcomes the reduction in gravity brought by the fixing member 126 and the spring, so as to further promote the rapid extension of the spray boom structure 12; at the same time, the gap between the third channel 1261 and the spring can form a flow channel, so that part of the liquid can enter the flow channel and promote the extension of the spray boom structure 12. The fixing part 126 is connected to the end of the inner tube 122 close to the box body 11, so that the weight of the end of the spray boom structure 12 close to the box body 11 is greater than the weight of the end of the spray boom structure 12 away from the box body 11. In other words, the weight end is close to the box body 11 to be close to the pressure energy, so that the spray boom structure 12 can be extended more quickly, and the weight end is close to the box body 11 and is supported by the box body 11, so that the extension and retraction process is smoother.

[0060] In some embodiments, see Figure 2 、 Figure 3 and Figure 6 A fourth channel 1262 is formed between the inner tube 122 and the second inner wall 1232, and the nozzles on the inner tube 122 and the outer tube 123 are opposite to the fourth channel 1262. The radial dimension of the fourth channel 1262 is greater than the sum of the radial dimensions of the multiple third channels 1261.

[0061] For example, the distance between the inner tube 122 and the second inner wall 1232 is greater than, equal to, or less than the thickness of the first rack 1236, thereby forming a fourth channel 1262 between the inner tube 122 and the second inner wall 1232. The provision of the fourth channel 1262 allows liquid entering the outer tube 123 to partially flow into the fourth channel 1262 after entering the first channel 1238, the second channel 1239, and the third channel 1261. When the second inner wall 1232 serves as the lower surface of the inner side of the outer tube 123, the radial dimension of the fourth channel 1262 is greater than the sum of the radial dimensions of the plurality of third channels 1261, thereby imparting buoyancy to the inner tube 122 and enabling rapid extension of the boom structure 12. Furthermore, the provision of the fourth channel 1262 reduces friction between the inner tube 122 and the outer tube 123, further enabling rapid extension of the boom structure 12.

[0062] In some embodiments, see Figure 5 and Figure 6 The multiple pipe fittings 121 may include: a first pipe fitting 121A, a second pipe fitting 121B and a third pipe fitting 121C; one end of the first pipe fitting 121A is connected to the box body 11 and communicates with the interior of the box body 11, and the other end is provided with a telescopic opening 1241; the second pipe fitting 121B is sleeved in the first pipe fitting 121A, and one end corresponding to the telescopic opening 1241 abuts against a circle of inner surface of the telescopic opening 1241, and is provided with a first annular blocking member 1242; the third pipe fitting 121C is sleeved in the second pipe fitting 121B, and the target end corresponding to the first blocking member 1242 abuts against a circle of inner surface of the first blocking member 1242, and is provided with a second blocking member 1223 for blocking the target end; wherein, when the pressure energy pushes the third pipe fitting 121C and the second pipe fitting 121B to extend out of the telescopic opening 1241 in sequence, the liquid is guided to be sprayed out through the nozzle of each pipe fitting 121.

[0063] During the extension of the spray boom structure 12, the third pipe 121C slides through the ring of the first sealing member 1242 in the direction away from the box body 11, and the second pipe 121B slides through the telescopic opening 1241 in the direction away from the box body 11; because the third pipe 121C abuts against an inner surface of the first sealing member 1242, and the second pipe 121B abuts against an inner surface of the telescopic opening 1241, the probability of the liquid in the spray boom structure 12 flowing out through the gap between the two adjacent pipes can be reduced.

[0064] When the boom structure 12 is not extended, the surface of the first pipe 121A away from the box body 11, the surface of the second pipe 121B away from the box body 11 and the surface of the third pipe 121C away from the box body 11 can be flush with each other, or can be as follows: Figure 5As shown in the figure, the surface of the second pipe 121B away from the box body 11 protrudes from the surface of the first pipe 121A away from the box body 11, and the surface of the third pipe 121C away from the box body 11 protrudes from the surface of the second pipe 121B away from the box body 11; in the above two arrangements, when the spray boom structure 12 is not extended, the second pipe 121B corresponds to the telescopic opening 1241, and the third pipe 121C corresponds to the first blocking member 1242, so as to reduce the probability of the second pipe 121B and the third pipe 121C not being aligned with the corresponding inlets and outlets, causing the spray boom structure 12 to extend.

[0065] Here, the part forming the telescopic opening 1241 can be opposite to the fixing part 126 on the second tube fitting 121B to be connected to the reset part 125 connected to the second tube fitting 121B; the first blocking part 1242 can be opposite to the fixing part 126 on the third tube fitting 121C to be connected to the reset part 125 connected to the third tube fitting 121C.

[0066] In some embodiments, see Figure 4 A limit block 1224 can be provided on the surface of the inner pipe 122 corresponding to the outer pipe 123. When the spray boom structure 12 is extended, the limit block 1224 can abut the inner wall of the outer pipe 123 (such as the surface of the annular body forming the telescopic opening 1241 close to the box body 11, the first blocking member 1242 close to the inner surface of the box body 11, etc.) to reduce the probability of the inner pipe 122 detaching from the outer pipe 123.

[0067] In some embodiments, see Figure 5 The spraying device 10 may further include: a plurality of distance acquisition components 14 and a plurality of image acquisition components 15, wherein the plurality of distance acquisition components 14 are respectively arranged at one end of the first tube 121A away from the box body 11, one end of the second tube 121B away from the box body 11, and one end of the third tube 121C away from the box body 11; the plurality of image acquisition components 15 are respectively arranged at one end of the first tube 121A away from the box body 11, one end of the second tube 121B away from the box body 11, and one end of the third tube 121C away from the box body 11; wherein the acquisition surface of the distance acquisition component 14, the acquisition surface of the image acquisition component 15, and the spraying surface of the nozzle are arranged on the same side.

[0068] The distance acquisition component 14 can be a component that uses ultrasonic, radar and other technologies to acquire distance; before the spraying operation is carried out, the distance between the distance acquisition component 14 and the ground can be acquired through the distance acquisition component 14, so that the operator or the control device 50 can adjust the height of the spraying device 10 according to the determined distance, for example: the spraying device 10 is connected to the spraying equipment 100 through the second drive device 40, and the length direction of the connected spray rod structure 12 is parallel to a horizontal direction. The second drive device 40 can drive the spraying device 10 to rise and fall relative to the spraying equipment 100. The spraying equipment 100 is also provided with a control device 50 connected to the signal of the distance acquisition component 14. When the distance determined by the distance acquisition component 14 is less than the preset distance, the control device 50 can control the second drive device 40 to make the spraying device 10 rise. Since the distance collection component 14 and the nozzle are both located on the pipe 121, and the collection surface of the distance collection component 14 is arranged on the same side as the nozzle's ejection surface, the distance collected by the distance collection component 14 approaches the distance between the nozzle and the ground. Therefore, whether the nozzle height is appropriate can be determined by obtaining the distance between the distance collection component 14 and the ground. In order to achieve a higher degree of approach, the collection surface of the distance collection component 14 and the nozzle's ejection surface are arranged on the same side and flush. The control device 50 may include Figure 7 As shown in the display located in the cockpit, the operator in the extended time can touch the display according to the distance obtained by the distance acquisition component 14 displayed on the display to control the second drive device 40 to make the spray device 10 rise or fall.

[0069] The image acquisition component 15 may include a lens and other structures. Before, during, and after the spraying operation, the image acquisition component 15 may be used to capture images to confirm whether the spraying area currently corresponding to the spraying device 10 is consistent with the area to be sprayed. If not, the position of the spraying device 10 may be adjusted or the length of the spray boom structure 12 may be extended or shortened. For example, the image acquisition component 15 is signal-connected to the control device 50. If the spraying area currently corresponding to the spraying device 10 determined by the image acquisition component 15 is displayed on the display, and the operator visually determines that the area is smaller than the area to be sprayed, the output power of the centrifugal pump 131 may be increased or decreased. Alternatively, if the spraying area currently corresponding to the spraying device 10 determined by the image acquisition component 15 is displayed on the display, and the operator visually determines that the area is inconsistent with the area to be sprayed, the vehicle may be driven to adjust the position of the spraying device 10 to the area to be sprayed.

[0070] In some embodiments, the aperture of the nozzle of the outer tube 123 may be greater than, less than, or equal to the aperture of the nozzle of the inner tube 122 , for example, the aperture of the nozzle of the outer tube 123 is greater than the aperture of the nozzle of the inner tube 122 .

[0071] Second aspect

[0072] The present disclosure provides a spraying device 100, see Figures 7 to 11 As shown, the spraying equipment 100 may include: a supporting body 20, a first driving device 30 and a plurality of spraying devices 10 as in any embodiment of the first aspect, the first driving device 30 is arranged on the supporting body 20, and is used to drive the supporting body 20 to move; the spraying device 10 is arranged on the supporting body 20, and the spraying areas of different spraying devices 10 do not overlap at least partially.

[0073] The first driving device 30 may include: a first power mechanism such as a wheel 301 and a motor capable of driving the wheel 301 to rotate, wherein the wheel 301 is connected to the lower end of the support body 20. When the first power mechanism drives the wheel 301 to rotate, the spraying device 100 can move on the ground to achieve spraying operations on different areas of the ground, or move the spraying device 10 to the corresponding area to be sprayed. Alternatively, the first driving device 30 may include: a second power mechanism such as a propeller and a motor capable of driving the propeller to rotate, wherein the second power mechanism drives the propeller to rotate, and the spraying device 100 can fly in the air to achieve spraying operations on the ground or in the air in different areas.

[0074] The spraying areas of different spraying devices 10 may not overlap at all or may not overlap partially, for example, see Figure 7 The nozzles of the two spraying devices 10 are both facing downward and not opposite each other, so that the spraying areas of the two spraying devices 10 do not overlap at all.

[0075] In some embodiments, see Figures 7 to 9 The spraying device 100 may further include: a plurality of second driving devices 40, which respectively connect the plurality of spraying devices 10 to the supporting body 20, so as to respectively drive the corresponding spraying devices 10 to move relative to the supporting body 20.

[0076] That is to say, a spraying device 10 can be connected to the supporting body 20 through a second driving device 40, and the second driving device 40 can drive the connected spraying device 10 to move relative to the supporting body 20. The displacement can be parallel to the length direction of the spray boom structure 12, perpendicular to the length direction of the spray boom structure 12, or in other directions.

[0077] For example, see Figure 1 、 Figures 7 to 9As shown, the second drive device 40 may include: a transmission chain 401 extending in a direction perpendicular to the length direction of the spray boom structure 12, a rigid connecting plate 402 connected to the transmission chain 401, and a sprocket 403. The transmission chain 401 is meshed with the sprocket 403, and the sprocket 403 is connected to the motor through a reducer. When the motor is working, the reducer reduces the rotation speed of the motor and rotates the sprocket 403, thereby realizing the transmission of the transmission chain 401 and driving the rigid connecting plate 402 to rise or fall. Among them, the support body 20 can be provided with a bracket 404 that can slide relative to the support body 20 (such as by a sliding connection of a slide rail), and the bracket 404 is connected to the rigid connecting plate 402; the bracket 404 can be made of a channel steel welded structure to improve the load stability of the bracket 404; the bracket 404 can be triangular in shape to effectively disperse the load stress of the rigid connecting plate 402, the spraying device 10, etc. thereon.

[0078] In this embodiment, the second driving device 40 can change the position of the spraying device 10 relative to the supporting body 20, so that spraying operations can be performed on crops in different areas and at different heights without changing the position of the spraying equipment 100.

[0079] In some embodiments, see Figure 5 、 Figures 7 to 9 and Figure 10 The length direction of the spray bar structure 12 on the spray device 10 is a first direction (such as the X direction in the figure), and the second driving device 40 is used to drive the spray device 10 to reciprocate in a second direction perpendicular to the first direction; the spraying equipment 100 also includes: a connecting column 60 and a plurality of connecting members; the connecting column 60 is arranged on the supporting body 20, and its extension direction is parallel to the second direction; one end of the plurality of connecting members is connected to the connecting column 60, and the other end is respectively connected to the end of the plurality of spray bar structures 12 away from the box body 11, and can be extended and retracted as the spray bar structure 12 is extended and retracted.

[0080] The connecting member can be a looped elastic cord, one end of which is mounted on the roller 601 at the top of the connecting column 60 and the other end is passed through the hanging ring 1243 at the end of the pipe 121 away from the housing 11. This allows the cord to expand and contract with the sliding of the pipe 121 and provides a buffering force during expansion and contraction. The number of rollers 601 can be consistent with the number of pipes 121 in the boom structure 12, so that a hanging ring 1243 on one pipe 121 and a roller 601 can connect to one elastic cord, thereby reducing the possibility of interference between different elastic cords. The hanging ring 1243 can be opposite the corresponding portion forming the telescopic opening 1241 and the corresponding first blocking member 1242, so that the hanging ring 1243 can form a limit for the boom structure 12 after contraction.

[0081] The provision of the connecting piece can provide support to the end of the boom structure 12 away from the box body 11 , thereby reducing the probability of deformation of the boom structure 12 due to lack of support at the end of the boom structure 12 away from the box body 11 .

[0082] It should be noted that the spraying device in the spraying equipment provided by the present disclosure is similar to the description of the spraying device embodiment described above and has similar beneficial effects as the spraying device embodiment described above. For technical details not disclosed in the spraying device embodiment of the present disclosure, please refer to the description of the spraying device embodiment of the present disclosure for understanding, and will not be repeated here.

[0083] Thus far, various embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0084] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced with equivalents without departing from the scope and spirit of the present disclosure. In particular, as long as there are no structural conflicts, the various technical features mentioned in the various embodiments may be combined in any manner.

Claims

1. A spraying device, characterized in that: include: A box body for containing liquid; A spray bar structure connected to the box body, comprising: a plurality of pipe fittings connected in sequence, each pipe fitting being provided with at least one nozzle, and radially adjacent pipe fittings being able to slide relative to each other to adjust the overall length of the spray bar structure and the number of exposed nozzles; A drive assembly is connected to the box body and is used to apply pressure to the liquid in the box body so that the liquid has pressure energy to flow into the spray boom structure; wherein, the liquid flowing into the spray boom structure pushes the spray boom structure to extend under the action of the pressure energy and guides the liquid to be sprayed out through the exposed nozzle.

2. The spraying device according to claim 1, characterized in that Among the plurality of pipes, two pipes adjacent to each other in the radial direction are respectively an outer pipe and an inner pipe; The outer tube has a first inner wall, a second inner wall, and a third inner wall adjacent to each other in sequence, the first inner wall and the third inner wall are opposite to each other and are respectively provided with a first flow guide and a second flow guide, the second inner wall is provided with a first rack opposite to the first flow guide and a second rack opposite to the second flow guide, and the first rack and the second rack are located on both sides of the plurality of nozzles on the outer tube; The inner tube is provided with a first gear and a second gear, the first gear is engaged with the first rack, and the second gear is engaged with the second rack; The first inner wall, the first flow guide and the first gear cooperate to form a first channel, and the third inner wall, the second flow guide and the second gear cooperate to form a second channel.

3. The spraying device according to claim 2, characterized in that Before the pressure can push the spray bar structure to extend, the spray heads of the outer pipe and the inner pipe are staggered and distributed, and the outer pipe seals the spray heads of the inner pipe.

4. The spraying device according to claim 3, characterized in that The spray boom structure also includes: a reset member, which is arranged in the outer tube member and is connected to the outer tube member and the inner tube member respectively. When the inner tube member slides toward the outside of the outer tube member to extend the spray boom structure, the reset member provides a reset force to the inner tube member in the opposite direction of the sliding direction of the inner tube member.

5. The spraying device according to claim 4, characterized in that The spray bar structure further includes: a fixing member, the fixing member being provided on a surface of the inner tube member facing away from the second inner wall and being attached to the inner wall of the outer tube member on a side of the first flow guide member and the second flow guide member facing away from the second inner wall, and the fixing member being provided with a plurality of third channels parallel to the length direction of the inner tube member; Wherein, the reset member is a spring, and one end of each of the reset members is connected to the fixing member respectively, and the other end is connected to the end of the outer tube away from the box body.

6. The spraying device according to any one of claims 2 to 5, characterized in that The plurality of pipes include: a first pipe, a second pipe and a third pipe; One end of the first pipe is connected to the box body and communicates with the interior of the box body, and the other end is provided with a telescopic opening; The second pipe is sleeved in the first pipe, with one end corresponding to the telescopic opening abutting against an inner surface of the telescopic opening, and is provided with a first annular blocking member; The third pipe is sleeved in the second pipe, and the target end of the first blocking member abuts against an inner surface of the first blocking member, and a second blocking member is provided to block the target end; Wherein, the pressure can push the third pipe and the second pipe to extend out of the telescopic opening in sequence, thereby guiding the liquid to be sprayed out through the nozzle of each pipe.

7. The spraying device according to claim 6, characterized in that Also includes: A plurality of distance collection components are respectively arranged at one end of the first pipe away from the box, one end of the second pipe away from the box, and one end of the third pipe away from the box; A plurality of image acquisition components are respectively arranged on an end of the first tube away from the box, an end of the second tube away from the box, and an end of the third tube away from the box; Wherein, the collection surface of the distance collection component, the collection surface of the image collection component and the ejection surface of the nozzle are arranged on the same side.

8. A spraying device, characterized in that: include: Supporting body; a first driving device, provided on the supporting body, for driving the supporting body to move; A plurality of spraying devices according to any one of claims 1 to 7, wherein the spraying devices are arranged on the supporting body, and the spraying areas of different spraying devices at least partially do not overlap.

9. The spraying device according to claim 8, characterized in that Also includes: A plurality of second driving devices respectively connect the plurality of spraying devices to the supporting body to respectively drive the corresponding spraying devices to move relative to the supporting body.

10. The spraying device according to claim 9, characterized in that The length direction of the spray bar structure on the spray device is a first direction, and the second driving device is used to drive the spray device to reciprocate in a second direction perpendicular to the first direction; The spraying equipment further comprises: a connecting column and a plurality of connecting members; The connecting column is provided on the supporting body, and its extending direction is parallel to the second direction; One end of each of the plurality of connectors is connected to the connecting column, and the other end is respectively connected to one end of each of the plurality of spray boom structures away from the box body, and can be extended and retracted along with the extension and retraction of the spray boom structures.

Images