KR-102961603-B1 - Agricultural pesticide sprayer

Abstract

The present invention relates to an agricultural chemical spraying device, comprising a main frame portion (10) mounted on an agricultural vehicle, a pair of slide frames (20) formed to be reciprocally movable and coupled to each end of the main frame portion (10), a driving portion (30) formed at each end of the main frame portion (10) to drive each of the slide frames (20), a plurality of chemical spraying portions (40) coupled to the main frame portion (10) and the slide frames (20) to spray a chemical supplied from a chemical supply portion, and a control portion (50) that controls the operation of the driving portion (30) and the chemical supply portion. The agricultural chemical spraying device according to the present invention can automatically and precisely adjust the spacing of the chemical spraying section, thereby enabling rapid and flexible response to various changes in the agricultural environment, such as the width of the cultivated land or the spacing of crops, and thereby has the effect of significantly improving the uniformity and efficiency of chemical spraying.

Inventors

• 이재영

Dates

Publication Date

20260507

Application Date

20251013

Claims (5)

1. Main frame part (10) mounted on an agricultural vehicle; A pair of slide frames (20) formed to be reciprocally movable and each coupled to both ends of the main frame part (10); Driving units (30) formed at both ends of the main frame unit (10) to drive the slide frame (20) respectively; A plurality of drug injection units (40) coupled to the main frame unit (10) and the slide frame (20) and spraying a drug supplied from a drug supply unit; and, It includes a control unit (50) that controls the operation of the above-mentioned driving unit (30) and drug supply unit, and The above drug spray unit (40) is, A clamp means (401) that is detachably attached to the main frame part (10) or slide frame (20); A hinge bracket (402) formed integrally with the clamp means (401); A swing arm (403) rotatably mounted on the hinge bracket (402); An elastic member (404) that provides elastic force to allow the swing arm (403) to rotate elastically; A drug injection means (405) formed on the above swing arm (403) for spraying a drug supplied from a drug supply unit; An agricultural chemical spraying device characterized by including a ground skid (406) installed at the lower end of the swing arm (403) to cause the swing arm (403) to rotate upon collision with an obstacle.
2. In claim 1, The above main frame section (10) is a center frame (101) made of a square tubular body; An agricultural chemical spraying device characterized by including a plurality of attachment frames (102) that are positionally adjustablely coupled to the center frame (101).
3. In claim 1, The above driving unit (30) is, Housings (301) formed at each end of the main frame section (10); A rack gear (302) formed on the slide frame (20); A drive motor (303) installed inside the above housing (301); An agricultural chemical spraying device characterized by including: a pinion gear (304) installed on the drive shaft of the above-mentioned drive motor (303), which rotates by meshing with the rack gear (302) and causes the slide frame (20) to move in a linear motion.
4. In claim 3, The above driving unit (30) is, A stopper (305) formed rotatably in the housing (301) and inserted into the stop hole of the slide frame (20); An agricultural chemical spraying device characterized by further including a spring (306) installed between the housing (301) and the stopper (305) to provide elastic force to the stopper (305).
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Description

Agricultural pesticide sprayer The present invention relates to an agricultural chemical spraying device, and more specifically, to an agricultural chemical spraying device that can automatically adjust the spacing between a plurality of chemical spraying units according to the usage environment, and can perform chemical spraying work stably and continuously through shock absorption and an automatic return structure even if the chemical spraying unit collides with an obstacle on the ground during the operation of the device. In the agricultural sector, spraying chemicals is essential for pest control and nutrient supply. While various types of chemical spraying devices are used for this purpose, conventional spraying devices have structural limitations, as they are manufactured with multiple spray nozzles fixed to a frame, making it difficult to adjust their spacing. These fixed structures fail to flexibly adapt to the topography of cultivated land, the types of crops grown, or their spacing, resulting in problems where pesticides are concentrated in specific areas or not sprayed at all; this leads to reduced pesticide efficiency and uneven control effects. In addition, some chemicals used for pest control or weeding are sprayed over the widest possible area of the ground by positioning the spray nozzle close to the ground to prevent direct spraying onto crops, but due to the characteristics of the agricultural work environment, the ground may be uneven or there may be unexpected obstacles such as stones or clods of soil. Therefore, when the spray nozzle or the chemical spraying unit supporting it physically collides with such obstacles during the movement of the spraying device, it frequently causes misalignment, resulting in chemical being sprayed directly onto crops or, in severe cases, damage that necessitates the suspension of the entire spraying operation. This has become a major cause of disrupting operational continuity and incurring repair costs. Therefore, there is a need to develop an agricultural chemical spraying device configured to efficiently adjust the spacing of the spraying unit to actively respond to various agricultural environments, ensure structural stability against external impacts, and perform stable and continuous chemical spraying operations. FIG. 1 is a perspective view according to a preferred embodiment of the present invention. FIG. 2 is an exemplary side cross-sectional view according to a preferred embodiment of the present invention. FIG. 3 is an exemplary cross-sectional view of a driving unit according to a preferred embodiment of the present invention. FIG. 4 is an enlarged perspective view of a drug spray unit according to a preferred embodiment of the present invention. FIG. 5 is a front view of the usage state according to a preferred embodiment of the present invention. FIG. 6 is a side view illustrating the usage state according to a preferred embodiment of the present invention. FIG. 7 is an exemplary side cross-sectional view showing a drug spraying unit according to another embodiment of the present invention. In describing the specific details for implementing the present invention, the description will be based on preferred embodiments. However, this does not mean that the present invention is limited to specific embodiments, and it should be understood that it includes all modifications, equivalents, or substitutions that fall within the spirit and scope of the present invention. Furthermore, the objectives and effects presented in this invention do not imply that specific embodiments must include all of them or only such effects, and the scope of the invention should not be understood as being limited by them. Unless otherwise defined, all terms used in describing the present invention are preferably interpreted as being consistent with their dictionary meanings and the meanings universally understood in the context of the relevant technology by those skilled in the art to which the present invention pertains. Hereinafter, an embodiment of an agricultural agent spraying device according to the present invention will be described in detail with reference to the attached drawings. In describing with reference to the attached drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted. FIG. 1 is a perspective view according to a preferred embodiment of the present invention, FIG. 2 is a side cross-sectional example view according to a preferred embodiment of the present invention, FIG. 3 is a cross-sectional example view of a driving unit according to a preferred embodiment of the present invention, FIG. 4 is an enlarged perspective view of a drug spraying unit according to a preferred embodiment of the present invention, FIG. 5 is a front view of a usage state according to a preferred embodiment of the present invention, and FIG. 6 is a side view of a usage state according to a prefe