Spraying device of geological modifier for agricultural planting

Abstract

The invention belongs to the technical field of agricultural machinery, and particularly discloses a geological modifier spraying device for agricultural planting, comprising a support frame, a pesticide box, a water pump, a nozzle and a soil turning mechanism, the water pump is connected to the pesticide box, and the nozzle is connected to the water pump through a water pipe; the soil turning mechanism comprises a plowshare, and the spray head is fixedly connected right behind the plowshare and synchronously enters the position below the soil layer along with the plowshare; the nozzle comprises a nozzle body and an inner core which are sleeved with each other, the inner core is rotationally connected with the nozzle body, an elastic reset mechanism is arranged between the inner core and the nozzle body, a first spraying opening is formed in the end of the nozzle body, and a second spraying opening is formed in the end of the inner core; in an initial state, the first spraying opening and the second spraying opening are staggered; when the water pressure reaches a preset threshold value, the water pressure overcomes the elastic reset mechanism to force the inner core to rotate, and the second spraying opening and the first spraying opening coincide to enter a spraying state. The device has the advantages of avoiding long-distance transmission of the modifier in the air, reducing interference of environmental factors, improving the penetration efficiency of deep soil and preventing the spray head from being blocked.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural machinery, in particular to a geological modifier spraying device for agricultural planting. BACKGROUND

[0002] Soil modifier is widely used in agricultural production, aiming to improve the physical, chemical and biological properties of soil, so as to improve the yield and quality of crops. In order to improve the application effect of soil modifier, various spraying devices are proposed in the prior art, which usually combine the soil turning function to deliver the modifier to the deep soil.

[0003] Although the existing spraying device attempts to combine the soil turning and spraying functions, there are fundamental defects in its design. Specifically, the spray head is usually installed in the upper region of the support frame, maintaining a large distance from the soil turning mechanism, which causes the sprayed modifier mist to travel a long air transmission path before contacting the soil. In this process, environmental variables such as wind speed changes, air humidity fluctuations and temperature differences can easily interfere with the stable distribution of the mist, causing the small droplets to diffuse, deviate or evaporate prematurely during transmission. Especially in open farmland or variable weather conditions, wind can blow a large amount of modifier away from the target area, making it unable to effectively cover the deep soil voids after turning, and only forming uneven deposition on the surface. This not only significantly reduces the deep penetration efficiency of the modifier, but also easily causes the surface of the soil to be excessively wet or dry and hard, hindering root development, and ultimately weakening the overall effect of soil modification.

[0004] At the same time, the spray head is exposed to the plowing environment for a long time, lacking effective isolation measures, so that soil debris, plant residues and organic impurities frequently invade the inside of the spray hole during operation. These foreign matters accumulate to form blockage, interrupting the continuity of spraying, forcing the operator to frequently stop and clean, seriously affecting the smoothness of operation and the uniformity of spraying.

[0005] Therefore, it is necessary to propose a new geological modifier spraying device for agricultural planting. SUMMARY

[0006] The purpose of the present application is to provide a geological modifier spraying device for agricultural planting to solve the above technical problems existing in the prior art.

[0007] To achieve the above objectives, the present invention provides the following solution: a spraying device for a geological conditioner used in agricultural planting, comprising a support frame, a medicine tank, a water pump, a nozzle, and a soil-turning mechanism. The water pump is connected to the medicine tank, and the nozzle is connected to the water pump via a water pipe. The soil-turning mechanism includes a plowshare, and the nozzle is fixedly attached to the rear of the plowshare and enters the soil layer synchronously with the plowshare. The nozzle comprises a nozzle body and an inner core nested together. The inner core is rotatably connected to the nozzle body, and an elastic reset mechanism is provided between them. A first spray port is opened at the end of the nozzle body, and a second spray port is opened at the end of the inner core. In the initial state, the first spray port and the second spray port are misaligned. When the water pressure reaches a preset threshold, the water pressure overcomes the elastic reset mechanism, forcing the inner core to rotate, so that the second spray port coincides with the first spray port and enters the spraying state.

[0008] Furthermore, the elastic reset mechanism is a miniature spiral spring connected between the inner core and the nozzle body.

[0009] Furthermore, the preset elastic force of the miniature worm spring corresponds to the minimum operating pressure output by the water pump, ensuring that the nozzle only opens during effective operation.

[0010] Furthermore, the elastic reset mechanism consists of two permanent magnets disposed on the inner circumferential surface of the nozzle body and the outer circumferential surface of the inner core, and the two permanent magnets are magnetically attracted to each other.

[0011] Furthermore, the nozzle has an internal vortex channel that uses water flow power to drive the inner core to rotate.

[0012] Furthermore, both the first and second spray nozzles are fan-shaped, and their overlapping area increases linearly with the increase of water pressure, so as to achieve precise control of the spray flow rate.

[0013] Furthermore, the spraying device for the agricultural planting soil conditioner also includes a central processing unit, and the water pump is signal-connected to the central processing unit.

[0014] Furthermore, a flow sensor is installed on the water pipe to monitor the working status of the nozzle, and the flow sensor is connected to the central processing unit.

[0015] Furthermore, the medicine tank is equipped with a liquid level sensor for monitoring the remaining amount of the modifier, and the liquid level sensor is connected to the central processing unit.

[0016] Furthermore, a hemispherical protective cover is provided on the outer side of the nozzle body, and the nozzle is located inside the hemispherical protective cover.

[0017] Furthermore, the spraying device for the agricultural planting geological amendment also includes a GPS positioning module, which is connected to the central processing unit and is used to record the operation trajectory and realize positioning spraying control.

[0018] As can be seen from the above, the spraying device for agricultural soil conditioner provided in this application avoids the airborne transmission path of the conditioner water mist by fixing the nozzle directly behind the plow head and simultaneously entering the soil layer with it. At the same time, the water pressure driven rotating inner core design achieves precise opening and closing, effectively solving the problems of low deep penetration efficiency and easy nozzle clogging. It has the advantages of avoiding long-distance transmission of the conditioner in the air, reducing environmental interference, improving deep soil penetration efficiency, and preventing nozzle clogging. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the spraying device for the agricultural planting geological conditioner according to Embodiment 1 of the present invention;

[0021] Figure 2 This is a cross-sectional view of the nozzle in its initial state according to Embodiment 1 of the present invention;

[0022] Figure 3 This is a cross-sectional view of the nozzle in the spraying state in Embodiment 1 of the present invention;

[0023] Figure 4 This is a cross-sectional view of the nozzle in Embodiment 2 of the present invention;

[0024] Figure 5 This is a cross-sectional view of the nozzle in Embodiment 3 of the present invention;

[0025] Figure 6 This is a top view of the nozzle in Embodiment 3 of the present invention;

[0026] Figure 7 The isometric view of the nozzle in Embodiment 3 of the present invention Figure 1 ;

[0027] Figure 8 The isometric view of the nozzle in Embodiment 3 of the present invention Figure 2 .

[0028] In the diagram: 1. Support frame; 2. Medicine tank; 3. Water pump; 4. Plowhead; 5. Nozzle; 6. Water pipe; 7. Hemispherical protective cover; 8. Nozzle body; 9. Inner core; 10. First spray nozzle; 11. Second spray nozzle; 12. Miniature worm spring; 13. First magnet; 14. Second magnet; 15. Miniature bearing; 16. Vortex channel. Detailed Implementation

[0029] 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.

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] Reference Figures 1 to 3 As shown, Embodiment 1 of the present invention provides a spraying device for a geological amendment for agricultural planting, including a support frame 1, a medicine tank 2, a water pump 3, a water pipe 6, a nozzle 5, a soil-turning mechanism, an anti-clogging device, and an intelligent control system. The support frame 1 supports the various components and is connected to an external drive device (such as a tractor) via a connecting rod. The medicine tank 2 stores the liquid amendment, and the water pump 3 pumps the amendment from the medicine tank 2 to the nozzle 5. The soil-turning mechanism is located at the front of the device and is used to loosen the soil; the soil-turning mechanism includes a plow 4, and the nozzle 5 is fixed directly behind the plow 4, entering the soil layer synchronously with the plow 4; the nozzle 5 includes a nozzle body 8 and an inner core 9 nested together, the inner core 9 being rotatably connected to the nozzle body 8, and an elastic reset mechanism is provided between them. The nozzle body 8 has a first spray port 10 at its end, and the inner core 9 has a second spray port 11 at its end; in the initial state, the first spray port 10 and the second spray port 11 are offset, circumferentially staggered, as shown... Figure 2 As shown; when the water pressure reaches a preset threshold, the water pressure overcomes the elastic reset mechanism, forcing the inner core 9 to rotate, causing the second spray nozzle 11 to coincide with the first spray nozzle 10 to achieve spraying, as shown. Figure 3 As shown. During operation, the external drive unit propels the entire device forward. The tilling mechanism's pear-shaped head first cuts into the soil and loosens it; subsequently, the nozzle 5, guided by the hemispherical protective cover 7, enters the loosened soil area and sprays the soil conditioner. Flow rate and soil moisture sensors continuously collect data, and the central processing unit dynamically adjusts the spraying volume and tilling depth after comprehensive analysis to ensure the soil conditioner is applied under optimal conditions. Throughout the process, all components work together to ensure unobstructed operation of the nozzle 5.

[0033] The working process of the spraying device for agricultural soil conditioner with the above-mentioned structure is as follows:

[0034] The spraying device is stably supported by a support frame 1. A chemical tank 2 stores the soil amendment. A water pump 3 connects to the chemical tank 2 and is connected to the nozzle 5 via a water pipe 6, thus enabling the extraction and delivery of the amendment. A soil-turning mechanism turns the soil and forms a loose soil layer, creating conditions for deep application of the amendment. The nozzle 5 moves synchronously below the soil layer with the plow head 4, ensuring that the amendment is sprayed directly into the newly turned soil, avoiding the problem of the amendment being exposed to air and dispersed by wind.

[0035] Specifically, the soil turning mechanism can take the form of rotary tillers, shovel plowshares, or vibratory soil looseners. Its core function is to break up and turn the soil to create a loose matrix for the deep penetration of soil conditioners.

[0036] Specifically, the nozzle 5 is rigidly connected to the plow head 4, which can be achieved through various fixing methods, such as bolt connection, snap-fit ​​fixing or welding, to ensure that the nozzle 5 can enter the soil layer synchronously with the plow head 4, thereby reducing the exposure time of the soil conditioner in the air.

[0037] Specifically, the elastic reset mechanism between the nozzle body 8 and the inner core 9 can be implemented using a spring sheet, rubber gasket, or other elastic material. Its main function is to restore the inner core 9 to its initial position when the water pressure decreases.

[0038] In one specific embodiment, the elastic reset mechanism is a miniature worm spring 12, with its two ends anchored to the inner core 9 and the nozzle body 8, respectively.

[0039] In one specific embodiment, the elastic reset mechanism is a miniature worm spring 12, with its two ends anchored to the inner core 9 and the nozzle body 8, respectively. Specifically, the miniature worm spring 12 is an elastic element with torsional characteristics, which can be made of stainless steel or polymer materials, and its specific form includes, but is not limited to, spiral, conical, or other adaptable structures. In practical applications, the miniature worm spring 12 ensures that the spray nozzle remains stably offset in its initial position through its linearly output torsional force, aiming to avoid ineffective spraying and prevent impurities from entering. In addition, the compact layout of the miniature worm spring 12 can significantly reduce internal gaps, thereby effectively suppressing the accumulation and jamming of particulate matter in the tillage environment.

[0040] It should be understood that, in this embodiment, the precise control of the opening timing of the nozzle 5 can be achieved by accurately matching the elasticity of the micro worm spring 12 with the working characteristics of the water pump 3, thereby ensuring the reliability of resource utilization and the stability of the application process.

[0041] In this embodiment of the invention, a first spray port 10 is opened at the end of the nozzle body 8, and a second spray port 11 is opened at the end of the inner core 9. In the initial state, the first spray port 10 and the second spray port 11 are offset to prevent impurities from entering when there is no water pressure. When the water pressure output by the water pump 3 reaches a preset threshold, the pressure generated by the water flow overcomes the force of the elastic reset mechanism, forcing the inner core 9 to rotate relative to the nozzle body 8, thereby making the second spray port 11 coincide with the first spray port 10, realizing the spraying of the soil conditioner. Specifically, this design ensures that the spraying action is initiated only under effective operating pressure, which reduces the risk of soil particle blockage and achieves dynamic adjustment of the spraying flow rate.

[0042] Specifically, the shapes of the first spray nozzle 10 and the second spray nozzle 11 can be designed as circular, elliptical, or polygonal, with the aim of adjusting the spray range through different opening shapes. Preferably, in this embodiment, both the first spray nozzle 10 and the second spray nozzle 11 are fan-shaped, with their overlapping area increasing linearly with increasing water pressure, thus achieving precise control of the spray flow rate. This design aims to ensure a uniform area change during relative rotation of the spray nozzles through the geometric characteristics of the fan shape. The overlapping area of ​​the first spray nozzle 10 and the second spray nozzle 11 during rotation can be optimized by adjusting the angle, arc length, and position of the rotation axis of the fan shape. When water pressure acts on the inner core 9, the inner core 9 rotates, and the overlapping area of ​​the first spray nozzle 10 and the second spray nozzle 11 increases accordingly. This process, based on the characteristics of the fan-shaped structure, ensures a linear relationship between area change and rotation angle. Because the arc-shaped boundary of the fan shape can maintain a uniform area change during relative rotation, the change in spray flow rate is smooth and predictable.

[0043] The aforementioned fan-shaped opening design also forms a good match with the water pressure output by the water pump 3, making the application of the amendment more uniform, especially in the process of deep soil amendment, which can significantly improve the accuracy of spraying distribution.

[0044] Further optimization involves adding a hemispherical protective cover 7 to the outside of the nozzle body 8, with the nozzle 5 entirely housed within the cover. The hemispherical protective cover 7 is made of high-strength plastic or metal, with a smooth hemispherical curved outer surface that guides soil particles to slide smoothly, preventing the accumulation of impurities on sharp edges or in grooves. Its opening direction aligns with the spraying direction, ensuring unobstructed delivery of the amendment mist to the target area. This structure forms a continuous physical barrier, significantly reducing the probability of direct impact and intrusion of soil and organic debris onto the nozzle 5 during tillage, minimizing clogging, and maintaining unobstructed internal flow channels and stable spray flow. The hemispherical protective cover 7 works in conjunction with the nozzle body 8, the inner core 9, and the elastic reset mechanism, enabling the equipment to achieve uniform and continuous deep application of the amendment even under complex tillage conditions, meeting the reliability and adaptability requirements of precision agriculture.

[0045] In a further preferred embodiment, this embodiment also includes a central processing unit, and the water pump 3 is signal-connected to the central processing unit.

[0046] Specifically, the central processing unit (CPU) refers to an intelligent core module with data acquisition, analysis, and control functions, which can be implemented using a microcontroller, embedded processor, or industrial computer. The purpose of introducing this module is to provide the spraying device with real-time monitoring and adaptive control capabilities, thereby improving the accuracy and efficiency of amendment application. The signal connection between the water pump 3 and the CPU can be achieved through wired communication (such as RS485 or CAN bus) or wireless communication (such as Bluetooth or Wi-Fi), ensuring that the operating status of the water pump 3 can be dynamically adjusted according to actual needs.

[0047] To further optimize the solution, a flow sensor is installed on the water pipe 6 connecting the medicine tank 2 to the nozzle 5 to monitor the working status of the nozzle 5. The flow sensor is connected to the central processing unit.

[0048] To further optimize the design, the medicine tank 2 in this embodiment is also equipped with a liquid level sensor to monitor the remaining amount of the modifier. The liquid level sensor is connected to the central processing unit. The liquid level sensor can be implemented using common liquid level measurement technologies such as float type, capacitive type, or ultrasonic type.

[0049] To further optimize the solution, this embodiment also includes a GPS positioning module, which is connected to the central processing unit and is used to record the operation trajectory and realize positioning spraying control.

[0050] In practical applications, the GPS positioning module can be implemented using high-precision differential GPS modules, RTK real-time dynamic positioning modules, etc. The central processing unit (CPU) refers to the main control device with data processing and logical judgment capabilities, which can be implemented using embedded microprocessors, industrial computers, or PLC programmable controllers. This solution, by introducing the above technical features, aims to solve the problem of inaccurate spraying caused by missing location information, thereby improving the space utilization rate of amendment application.

[0051] Compared with the prior art, this embodiment discloses at least the following beneficial effects:

[0052] This invention, by placing the nozzle 5 directly behind the pear-shaped blade, ensures that the soil conditioner can be accurately and deeply applied to the target soil layer, significantly reducing losses caused by wind erosion and improving utilization. Simultaneously, the anti-clogging design and the introduction of an automated monitoring system enhance the reliability and adaptability of the device, meeting the needs of modern precision agriculture.

[0053] Example 2

[0054] Reference Figure 4As shown, Embodiment 2 of the present invention provides another spraying device for a geological conditioner used in agricultural planting, including a support frame 1, a medicine tank 2, a water pump 3, a water pipe 6, a nozzle 5, a soil turning mechanism, an anti-clogging device, and an intelligent control system. Except for the nozzle 5, this embodiment adopts the same structure as Embodiment 1. Specifically, the nozzle 5 in this embodiment includes a nozzle body 8, an inner core 9, and an elastic reset mechanism. The elastic reset mechanism consists of two permanent magnets disposed on the nozzle body 8 and the inner core 9. The first magnet 13 is disposed on the inner circumferential surface of the nozzle body 8, and the second magnet 14 is disposed on the outer circumferential surface of the inner core 9. The first magnet 13 and the second magnet 14 are magnetically attracted to each other. In the initial state, the two permanent magnets approach each other and attract each other, causing the positions of the first spray nozzle 10 and the second spray nozzle 11 to be misaligned.

[0055] In this embodiment, a miniature bearing 15 is provided between the nozzle body 8 and the inner core 9, specifically as follows: Figure 4 As shown, the nozzle body 8 and the inner core 9 are coaxially arranged. The inner core 9 is sleeved on the rotating shaft of the nozzle body 8, and the miniature bearing 15 is sleeved between the rotating shaft and the shaft hole of the inner core 9.

[0056] Example 3

[0057] Reference Figures 5 to 8 As shown, Embodiment 3 of the present invention provides another spraying device for a geological amendment for agricultural planting, including a support frame 1, a medicine tank 2, a water pump 3, a water pipe 6, a nozzle 5, a soil-turning mechanism, an anti-clogging device, and an intelligent control system. Except for the nozzle 5, this embodiment adopts the same structure as Embodiments 1 and 2. In this embodiment, the nozzle 5 is further provided with a vortex channel 16 inside. The vortex channel 16 is a flow channel structure that induces water flow to form a high-speed vortex in a narrow space through a specific geometric structure. It can be a spiral guide groove, an annular slit, or an equivalent variant thereof to achieve the vortex effect. The function of the vortex channel 16 is to generate a continuous rotational torque by utilizing the kinetic energy of the water flow, thereby replacing the traditional direct-push hydraulic transmission mode and avoiding the interference of solid impurities on the rotating parts.

[0058] The inner core 9 is disposed inside the nozzle 5 cavity and can perform controlled rotational motion around its axis under the driving force of water flow, thereby achieving precise opening and closing of the spray nozzles and ensuring the uniformity of the additive distribution. In specific implementation, water is delivered to the nozzle 5 inlet by the water pump 3 and then introduced into the vortex channel 16. Under the action of this channel configuration, the water is forced to swirl and accelerate, thereby generating significant centrifugal force and tangential force coupling, forming a constant torque sufficient to drive the inner core 9 to rotate. During this process, the inner core 9 needs to overcome the restoring force provided by the elastic reset mechanism coupled with it to complete angular displacement, causing the first spray nozzle 10 on the inner core 9 to achieve a predetermined overlap with the second spray nozzle 11 fixed to the nozzle 5 housing, thereby realizing the function of adjusting the spray area.

[0059] It is worth noting that the vortex channel 16 also has self-cleaning properties. The vortex-like water flow can powerfully erode particulate pollutants accumulated on the channel wall or the outer contour of the inner core 9, significantly reducing the probability of impurity retention. This design enhances the stability and durability of the inner core 9's operation and also helps maintain a constant and consistent spray volume under varying soil conditions.

[0060] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0061] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A spraying device for a geological conditioner used in agricultural planting, characterized in that, The utility model relates to a kind of soil improvement agent spraying machine, including support frame (1), medicine box (2), water pump (3), shower head (5) and plough mechanism, the water pump (3) connects the medicine box (2), the shower head (5) is connected to the water pump (3) by water pipe (6);The plough mechanism includes plowshare (4), the shower head (5) is fixedly connected at the back of the plowshare (4), and synchronously enters below soil layer with the plowshare (4);The shower head (5) includes mutually nested shower head body (8) and inner core (9), the inner core (9) is rotatably connected with the shower head body (8), and elastic reset mechanism is arranged between the two, the shower head body (8) end is provided with first spray opening (10), the inner core (9) end is provided with second spray opening (11);In initial state, first spray opening (10) and second spray opening (11) are misaligned;When water pressure reaches preset threshold value, water pressure overcomes elastic reset mechanism and forces inner core (9) to rotate, so that second spray opening (11) coincides with first spray opening (10) and enters spray state.

2. The agricultural planting ground improving agent spraying device according to claim 1, characterized by The elastic reset mechanism is a micro-spiral spring (12) connected between the inner core (9) and the shower head body (8).

3. The agricultural planting ground improving agent spraying apparatus according to claim 2, characterized by The preset elastic force of the micro-spiral spring (12) corresponds to the minimum working pressure output by the water pump (3) to ensure that the shower head (5) is only opened during effective operation.

4. The agricultural planting ground improving agent spraying apparatus according to claim 1, characterized by The elastic reset mechanism is two permanent magnets arranged on the inner circumferential surface of the shower head body (8) and the outer circumferential surface of the inner core (9), and the two permanent magnets are magnetically attracted.

5. The agricultural planting ground improving agent spraying apparatus according to claim 2 or 4, characterized by The shower head (5) is provided with a vortex channel (16) inside, which drives the inner core (9) to rotate using water flow power.

6. The agricultural planting ground improving agent spraying apparatus according to claim 1, characterized by The first spray opening (10) and the second spray opening (11) are both fan-shaped, and their overlapping area increases linearly with water pressure to achieve precise control of spray flow.

7. The agricultural planting ground improving agent spraying apparatus according to claim 6, characterized by It also includes a central processing unit, and the water pump (3) is signal connected with the central processing unit.

8. The agricultural planting ground improving agent spraying apparatus according to claim 7, characterized by A flow sensor is installed on the water pipe (6) to monitor the working state of the shower head (5), and the flow sensor is signal connected with the central processing unit.

9. The agricultural planting ground improving agent spraying apparatus according to claim 7, characterized by A liquid level sensor is arranged in the medicine box (2) to monitor the remaining amount of the modifier, and the liquid level sensor is signal connected with the central processing unit.

10. The agricultural planting ground improving agent spraying apparatus according to claim 1, characterized by A hemispherical protective cover (7) is arranged on the outside of the shower head body (8), and the shower head (5) is located in the hemispherical protective cover (7).

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