A spray bar emulating the structure of a bird primary flight feather shaft

Abstract

The application discloses a spray rod imitating the primary flight feather shaft structure of birds, and belongs to the field of pesticide spraying equipment. The spray rod has a bending structure along the horizontal direction and an internal hollow structure, and one end of the spray rod is thicker, and the other end is thinner. The thickness of the spray rod is uniform between the two ends, and the cross section of the internal hollow structure gradually decreases, but the proportion of the wall thickness to the whole cross section gradually increases. The hollow structure is used for passing liquid medicine. The thicker end of the spray rod is used for being connected with a spraying machine and communicating with the liquid outlet of the spraying machine. A plurality of through holes are formed in the lower part of the spray rod and communicate with the hollow structure. The through holes are used for being connected with nozzles. Compared with a common straight rod with the same length and diameter, the spray rod can greatly avoid bending, vibration and breaking by imitating the primary flight feather shaft structure of birds.

Description

Technical Field

[0001] This invention belongs to the field of pesticide spraying equipment, specifically relating to a spray bar with a structure that mimics the rachis of a bird's primary flight feather. Background Technology

[0002] In agricultural planting, large, wide-width self-propelled sprayers play a crucial role in controlling pests, diseases, and weeds, and synergistically improving crop yield and quality. Their spray booms are the core component for precise and efficient spraying. Muddy and uneven field environments can cause the spray booms to bend, vibrate, or even break. To avoid this, reinforced structures are typically designed, such as truss structures and automatic adjustment devices. While these achieve reinforcement, they also increase the machine's weight, increase costs, and make operation inconvenient. Furthermore, if the truss rusts, it can reduce the machine's lifespan.

[0003] Birds are adept fliers, and the rachis of their primary flight feathers withstands significant forces during flight without breaking. This is due to the curved shape and hollow internal structure of the primary flight feather rachis. This unique structure offers a solution to the problem of spray booms easily bending, vibrating, or even breaking without reinforcement. Summary of the Invention

[0004] To address the problem of spray booms being prone to bending, vibration, and even breakage without reinforcement, this invention proposes a spray boom with a structure mimicking the rachis of a bird's primary flight feather. The specific technical solution adopted in this invention is as follows:

[0005] A spray bar with a structure mimicking the rachis of a bird's primary flight feather has a horizontally curved structure and an internal hollow structure. The spray bar is thicker at one end and thinner at the other, with a uniform transition in thickness between the two ends. Simultaneously, the cross-section of the internal hollow structure gradually decreases, while the proportion of its wall thickness to the total cross-section gradually increases. The curvature equation of the spray bar's centerline is: z = 314.8530 + 1.7696x - 0.4173y - 0.0870x 2 +0.0531xy-0.0076y 2 ;

[0006] The cross-sectional shape of the internal hollow structure, from the thick end to the thin end, is as follows: a circle at the center, a circle near the inner arc of the curved structure, a pentagon near the inner arc of the curved structure, an isosceles trapezoid near the inner arc of the curved structure, an isosceles triangle near the inner arc of the curved structure, and a teardrop shape near the inner arc of the curved structure. The hollow structure is used to pass in the liquid medicine. The thicker end of the spray bar is used to connect to the sprayer and communicate with the liquid outlet of the sprayer. Several through holes are opened below the spray bar and communicate with the hollow structure. The through holes are used to connect the nozzle.

[0007] Preferably, the diameter of the thinner end is 15-25% of the diameter of the thicker end, and more preferably 20%.

[0008] The beneficial effects of this invention are:

[0009] 1. Compared with ordinary straight rods of the same length and diameter, the spray bar provided by this invention can greatly avoid bending, vibration and breakage.

[0010] 2. The hollow interior of the spray bar provided by this invention can be used to deliver liquid medicine. Attached Figure Description

[0011] Figure 1 A schematic diagram of a spray bar and nozzle assembly based on a bird primary flight feather shaft structure according to the present invention;

[0012] Figure 2 A schematic diagram of a spray bar with a structure mimicking the rachis of a bird's primary flight feather according to the present invention.

[0013] Figures 3-7 This is a schematic diagram of the hollow cross-sectional shape inside the spray bar of the present invention, which is a bird-like primary flight feather shaft structure. Detailed Implementation

[0014] The technical solution of the present invention will be further explained and described below with reference to specific embodiments.

[0015] like Figure 1 and Figure 2 As shown in the figure, this embodiment presents a spray bar with a structure mimicking the rachis of a bird's primary flight feather. It has a horizontally curved structure and an internal hollow structure. One end of the spray bar is thicker than the other, with a uniform transition in thickness between the two ends. Simultaneously, the cross-section of the internal hollow structure gradually decreases, while the wall thickness as a percentage of the total cross-section gradually increases. The hollow structure is used to introduce liquid medication. The thicker end of the spray bar is connected to a sprayer and communicates with the sprayer's outlet. Several through holes are opened below the spray bar, communicating with the hollow structure, and these through holes are used to connect nozzles.

[0016] After fitting, the curvature equation of the curved structure in this embodiment is: z = 314.8530 + 1.7696x - 0.4173y - 0.0870x 2 +0.0531xy-0.0076y 2 .

[0017] In this embodiment, the diameter of the thinner end is about 20% of the diameter of the thicker end;

[0018] The hollow cross-sectional shape, from the thickest end to the thinnest end, is as follows:

[0019] 1. A circle located in the very center with uniform wall thickness.

[0020] 2. The circle closest to the inner arc of the feather shaft ( Figure 3 ).

[0021] 3. The pentagon near the inner arc of the feather shaft ( Figure 4 The pentagon is axially symmetric, with two approximately right angles near the inner arc of the feather rachis, and the acute angle on the axis of symmetry near the outer arc of the feather rachis.

[0022] 4. An isosceles trapezoid near the inner curve of the feather rachis ( Figure 5 The two acute angles of the isosceles trapezoid are close to the inner arc of the feather rachis, and the two obtuse angles are close to the outer arc of the feather rachis.

[0023] 5. An isosceles triangle close to the inner arc of the feather rachis ( Figure 6 The two base angles of the isosceles triangle are close to the inner arc of the feather shaft, and the vertex angle is close to the outer arc of the feather shaft.

[0024] 6. Teardrop shape near the inner arc of the feather shaft ( Figure 7 The teardrop-shaped tip is close to the outer arc of the feather shaft.

Claims

1. A spray bar with a structure mimicking the rachis of a bird's primary flight feather, characterized in that, It features a horizontally curved structure and an internal hollow structure. The spray bar is thicker at one end and thinner at the other, with the diameter of the thinner end being 15-25% of the diameter of the thicker end. The thickness transitions evenly between the two ends. Simultaneously, the cross-section of the internal hollow structure gradually decreases, while the wall thickness as a proportion of the total cross-section gradually increases. The equation of the spray bar's centerline is: z = 314.8530 + 1.7696x - 0.4173y - 0.0870x 2 +0.0531xy -0.0076y 2 ; The cross-sectional shape of the internal hollow structure, from the thick end to the thin end, is as follows: a circle in the center, a circle near the inner arc of the curved structure, a pentagon near the inner arc of the curved structure, an isosceles trapezoid near the inner arc of the curved structure, an isosceles triangle near the inner arc of the curved structure, and a teardrop shape near the inner arc of the curved structure; the hollow structure is used to pass in the liquid medicine, and the thicker end of the spray rod is used to connect to the sprayer and communicate with the liquid outlet of the sprayer. Several through holes are opened below the spray rod and communicate with the hollow structure. The through holes are used to connect the nozzle.

2. The spray bar with a bird-like primary flight feather shaft structure according to claim 1, characterized in that, The diameter of the thinner end of the spray bar is 20% of the diameter of the thicker end.

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