Agricultural unmanned aerial vehicle irrigation diffusion nozzle mechanism

Abstract

The utility model discloses an irrigation diffusion nozzle mechanism of agricultural unmanned plane applied to the field of agricultural unmanned plane application, specifically includes the tubulature, boss and diffusion disc, the tubulature has the inner chamber of hollow, and one end is arranged as the liquid inlet, and the other end is arranged as the liquid outlet, and the diffusion disc can be fixed on the boss, and the outer wall of diffusion disc and the inner wall of tubulature seal and fit, a plurality of through -holes that are evenly distributed along the diffusion disc circumferential direction are equipped on the diffusion disc, are used for buffering the liquid that flows into through the liquid inlet and decompression, at least one jack is provided on the diffusion disc, and the aperture of the jack and the outer diameter of boss are gap fit. The utility model discloses through diffusion disc pinhole and split the high pressure water flow into a plurality of streams, directly reduce the flow rate and impact force, avoid seedling lodging, root soil and scatter, and make the stream even flow out through the circumferential even liquid outlet, realize even irrigation to seedling.

Description

Technical Field

[0001] This invention relates to the field of technology, and specifically to an irrigation diffusion nozzle mechanism for an agricultural drone. Background Technology

[0002] Agricultural drones are mainly used for crop irrigation, and the commonly used irrigation nozzles are mostly spray nozzles. These nozzles use a high-pressure pump to pressurize the liquid, causing it to form atomized particles through tiny nozzles. This allows for large-area coverage and is suitable for irrigating mature crops or spraying for plant protection.

[0003] However, in the irrigation of seedling crops, existing spray nozzles lack a graded buffer structure for liquid pressure. The pressure required for high-pressure atomization can directly cause seedlings to fall over and the soil around the roots to be washed away. At the same time, the droplet size after atomization is too small, making it easy to drift due to wind. This not only wastes liquid but also makes it difficult to penetrate to the roots of seedlings, failing to meet the seedlings' effective water absorption needs.

[0004] In summary, although existing spray irrigation nozzles can meet the needs of mature crops, when applied to seedling crops, they still have problems such as easily causing seedlings to lodging, soil washing away from the roots, and poor irrigation effect. Utility Model Content

[0005] The purpose of this invention is to provide an irrigation diffusion nozzle mechanism for agricultural drones to solve the technical problems that existing technologies, when applied to irrigation of seedling crops, still easily lead to seedling lodging, root soil erosion, and poor irrigation effect.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: In a first aspect, this utility model provides an irrigation diffusion nozzle mechanism for an agricultural drone, characterized in that it comprises: The tube body has a hollow inner cavity, with one end configured as an inlet and the other end configured as an outlet. A boss is provided on the inner bottom of the tube body, and the boss extends toward the liquid inlet along the axial direction of the tube body; At least one diffuser is provided. The diffuser is disposed in the inner cavity of the tube body and located between the inlet and the outlet. The outer wall of the diffuser is sealed to the inner wall of the tube body. The diffuser is provided with several through holes evenly distributed around its circumference for buffering and depressurizing the liquid flowing in through the inlet. The diffuser is provided with at least one insertion hole. The diameter of the insertion hole is clearance-fitted with the outer diameter of the boss. The diffuser disc is inserted into the boss through the insertion hole, and multiple diffuser discs can be stacked sequentially along the axial direction of the boss to divide the inner cavity of the tube into several sub-cavities distributed along the liquid flow direction.

[0007] Furthermore, the boss is provided in multiple forms and is evenly distributed along the bottom circumference of the inner side of the tube. The diffuser disk has multiple insertion holes, which are evenly distributed along the circumference of the diffuser disk and correspond one-to-one with the protrusions. The plurality of diffusion disks are connected to the corresponding bosses through each insertion hole, and the diameter of each insertion hole is in clearance fit with the outer diameter of the corresponding boss.

[0008] Furthermore, the apertures of the through holes in the different diffusion disks are different.

[0009] Furthermore, it also includes a U-shaped locking protrusion, the opening size of which is adapted to the outer diameter of the boss, and is locked onto the boss between the diffuser disks, with its end face abutting against the corresponding diffuser disk, restricting the diffuser disk from moving along the axial direction of the boss.

[0010] Compared with existing technologies, it has the following advantages: This invention features a diffuser plate inside the tube. Multiple small holes on the diffuser plate can divert the liquid flowing in from the drone's outlet pipe. The high-pressure water flow flowing in through the inlet is forcibly split into multiple thin streams, directly reducing the flow rate and impact force, thus preventing seedlings from lodging or the soil around the roots from being washed away. Attached Figure Description

[0011] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal cross-sectional structure of the tube body of this utility model; Figure 3 This is a schematic diagram of the installation of multiple bosses in this utility model; Figure 4 This is a schematic diagram of the card protrusion structure of this utility model.

[0013] The labels in the diagram represent the following: 10. Tube body; 100. Inner cavity; 101. Liquid inlet; 102. Liquid outlet; 20. Diffuser plate; 201. Through hole; 202. Insertion hole; 30. Boss; 40. Sub-cavity; 50. Locking protrusion. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Reference Figures 1-4 This utility model provides an irrigation diffusion nozzle mechanism for an agricultural drone, which specifically includes: The tube body 10 has a hollow inner cavity 100, one end is configured as a liquid inlet 101, and the other end is configured as a liquid outlet 102. A boss 30 is provided on the inner bottom of the tube body 10, and the boss 30 extends towards the inlet 101 along the axial direction of the tube body 10. At least one diffuser 20 is provided. The diffuser 20 is disposed in the inner cavity 100 of the tube body 10 and located between the liquid inlet 101 and the liquid outlet 102. The outer wall of the diffuser 20 is sealed and fitted to the inner wall of the tube body 10. Several through holes 201 are uniformly distributed around the circumference of the diffuser 20 to buffer and reduce the pressure of the liquid flowing in through the liquid inlet 101. At least one insertion hole 202 is provided on the diffuser 20. The diameter of the insertion hole 202 is clearance-fitted with the outer diameter of the boss 30. The diffuser 20 is inserted into the boss 30 through the insertion hole 202, and multiple diffuser 20s can be stacked sequentially along the axial direction of the boss 30 to divide the inner cavity 100 of the tube body 10 into several sub-cavities 40 distributed along the liquid flow direction.

[0016] This embodiment provides an adapted solution to the problems that existing spray nozzles used for irrigating seedling crops often cause seedlings to fall over and the soil around the roots to be washed away due to high-pressure atomization, and the droplets are too small to easily drift and penetrate to the roots of the seedlings.

[0017] The specific analysis is as follows: Connect the liquid inlet 101 of the tube body 10 to the UAV's liquid delivery tube. After the liquid flows into the inner cavity 100 of the tube body 10 from the liquid inlet 101, it directly contacts the diffuser plate 20.

[0018] Because the outer wall of the diffuser plate 20 is tightly attached to the inner wall of the tube, the liquid cannot bypass it from the side and can only pass through the through hole 201 on the diffuser plate 20. The through hole 201 divides the concentrated high-pressure liquid into multiple fine streams, directly reducing the impact force of the liquid and preventing the high-pressure liquid from directly hitting the seedlings and causing them to fall over or the soil to be washed away.

[0019] The gap fit between the socket 202 and the boss 30 allows the diffuser 20 to be easily fitted into the boss 30 for installation. At the same time, the fit between the outer circumference of the boss 30 and the inner wall of the socket 202 restricts the left and right sway of the diffuser 20. Combined with the tight fit between the diffuser 20 and the inner wall of the tube, it ensures that the diffuser 20 is always in the center position, and the through hole 201 distributes the liquid evenly, avoiding excessive local pressure.

[0020] When a single diffuser disk is insufficient for buffering, multiple diffuser disks 20 are stacked to form a sub-cavity 40. The liquid needs to pass through each sub-cavity 40 and the corresponding through hole 201 in sequence. Pressure buffering is completed in each sub-cavity 40, gradually reducing the flow rate and impact force. When it is finally sprayed out from the liquid outlet 102, the liquid pressure is gentle and will not damage the seedlings. Moreover, the droplet size is moderate and is not easily affected by wind.

[0021] A single boss 30 can meet the installation requirements of a small number of diffuser discs 20. However, when multiple diffuser discs 20 are stacked or when the drone is vibrating during flight, single-point positioning can easily cause circumferential deflection of the diffuser disc 20, resulting in uneven flow distribution in the through hole 201, which may still cause local impact on the seedlings. Therefore, multiple bosses 30 can be provided. The following embodiments are proposed: Multiple bosses 30 are provided and are evenly distributed along the bottom circumference of the inner side of the tube body 10; the number of insertion holes 202 on the diffuser 20 is the same as that of the bosses 30, and they are evenly distributed along the circumference of the diffuser 20 and correspond one-to-one with the bosses 30; multiple diffuser 20s are inserted into and fitted with the corresponding bosses 30 through each insertion hole 202, and the diameter of each insertion hole 202 is slightly larger than the outer diameter of the corresponding boss 30 to maintain a clearance fit.

[0022] Multiple protrusions 30 and corresponding insertion holes 202 form multi-point positioning, which can further restrict the circumferential rotation of the diffuser 20, prevent the diffuser 20 from deflecting due to the vibration of the drone flight, ensure that the through hole 201 always distributes the liquid evenly, prevent excessive local liquid impact from damaging the seedlings, and also share the weight of the diffuser 20 and the liquid impact force, preventing the deformation of a single protrusion under force. Even if multiple diffusers 20 are stacked, they can still provide stable support, making the multi-level buffering effect more reliable.

[0023] To further optimize the buffering effect, avoid sudden changes in liquid pressure caused by the uniform aperture of the through holes 201 when multiple diffuser discs 20 are stacked, which still poses a risk of localized impact, and to make the liquid permeability more suitable for the absorption needs of seedling roots, the following embodiments are proposed: The diameter of the through hole 201 varies among different diffuser disks 20.

[0024] For example, when multiple diffuser disks 20 are stacked, the front diffuser disk 20 near the liquid inlet 101 has a larger aperture of through hole 201, which first diverts and depressurizes the high-pressure liquid to reduce the impact force.

[0025] The diffuser disk 20 in the middle has a moderately sized through hole 201, which further diverts the liquid after initial depressurization and stabilizes the pressure.

[0026] The downstream diffuser 20, located near the liquid outlet 102, has a small through-hole 201, which serves as a buffer.

[0027] The liquid passes through the through holes 201 of different diameters in sequence, the pressure gradually decreases and the flow rate is stable. This prevents the seedlings from being damaged by excessive pressure and avoids the drift of droplets that are too small. It ensures that the droplets fall on the roots of the seedlings and penetrate into the soil to meet the absorption needs.

[0028] The clearance fit can stabilize the diffuser 20 and meet daily irrigation needs, but long-term use may cause axial displacement of the diffuser 20, resulting in the disappearance of the space in the sub-cavity 40 and the failure of the buffering effect. Therefore, the following embodiment is proposed: It also includes a U-shaped locking protrusion 50. The locking protrusion 50 is made of elastic material, and its opening size is adapted to the outer diameter of the boss 30. It is locked onto the boss 30 between the diffuser disks 20 and fits tightly with the boss 30 circumferentially.

[0029] The 50 card protrusion directly blocks the axial movement of the diffuser disk 20 by abutting the end face. Even if the drone vibrates or the liquid generates thrust, the position of the diffuser disk 20 can be firmly fixed, ensuring that each sub-cavity 40 maintains a fixed space. The multi-level buffering effect is stable, and there will be no situation where the liquid pressure rebound causes the seedlings to fall over or the droplets to drift during long-term use.

[0030] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. An irrigation diffusion nozzle mechanism for an agricultural drone, characterized in that, have: The tube body (10) has a hollow inner cavity (100), one end is configured as an inlet (101), and the other end is configured as an outlet (102). A boss (30) is provided on the inner bottom of the tube body (10), and the boss (30) extends toward the inlet (101) along the axial direction of the tube body (10); At least one diffuser (20) is provided. The diffuser (20) is located in the inner cavity (100) of the tube body (10) and between the inlet (101) and the outlet (102). The outer wall of the diffuser (20) is sealed and fitted to the inner wall of the tube body (10). The diffuser (20) is provided with a plurality of through holes (201) evenly distributed around the circumference of the diffuser (20) for buffering and depressurizing the liquid flowing in through the inlet (101). The diffuser (20) is provided with at least one insertion hole (202). The diameter of the insertion hole (202) is in clearance fit with the outer diameter of the boss (30). The diffuser (20) is fitted and inserted into the boss (30) through the insertion hole (202), and multiple diffuser (20) can be stacked sequentially along the axial direction of the boss (30) to divide the inner cavity (100) of the tube (10) into several sub-cavities (40) distributed along the liquid flow direction.

2. The irrigation diffusion nozzle mechanism of the agricultural drone according to claim 1, characterized in that: The boss (30) is provided in multiple ways and is evenly distributed along the bottom of the inner side of the tube body (10); The diffuser disk (20) has multiple insertion holes (202) that are evenly distributed along the circumference of the diffuser disk (20) and correspond one-to-one with the boss (30). The plurality of diffusion disks (20) are connected to the corresponding bosses (30) through each insertion hole (202), and the diameter of each insertion hole (202) is in clearance fit with the outer diameter of the corresponding boss (30).

3. The irrigation diffusion nozzle mechanism for agricultural drones according to claim 2, characterized in that: The aperture of the through hole (201) of the different diffusion disks (20) is different.

4. The irrigation diffusion nozzle mechanism of the agricultural drone according to claim 2, characterized in that: It also includes a U-shaped locking protrusion (50), the opening size of which is adapted to the outer diameter of the boss (30), and is locked onto the boss (30) between the diffuser disks (20). The end face of the locking protrusion (50) abuts against the corresponding diffuser disk (20), restricting the diffuser disk (20) from moving axially along the boss (30).

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