A device for balanced application of nutrients in rice-crop rotation

Abstract

The utility model discloses a kind of rice crop rotation nutrient balanced application devices, including integrated multi-compartment shell, the integrated multi-compartment shell includes two side-by-side arrangement liquid storage parts, one end of two The liquid storage part is communicated with the corresponding one end of three-way connecting portion arrangement, the other end of three-way connecting portion is communicated with liquid outlet pipe arrangement, each The liquid storage part inside is provided with stirring mixing structure, three-way connecting portion inside is provided with flow path adjusting structure, the liquid outlet pipe inside is provided with quantitative liquid outlet structure, the other end of the liquid outlet pipe is detachably connected with infusion needle, reduce manufacturing and maintenance cost by pure mechanical structure, farmer is easy to bear, good maintenance;Handheld mode operation is flexible, adapt to small-scale rice crop rotation farmland and greenhouse environment, meet small range precision feeding demand;Through double-compartment flow path switching, quantitative liquid outlet and stirring mixing structure cooperation, rice special-purpose nutrient solution can be quickly switched, realize nutrient uniform quantitative application, guarantee crop rotation nutrient balance.

Description

Technical Field

[0001] This utility model relates to the field of agricultural planting, and more specifically, to a device for balanced application of nutrients in rice-vegetable rotation. Background Technology

[0002] In rice-vegetable rotation planting patterns, rice and vegetables have significantly different nutrient requirements. However, existing fertilization devices have some shortcomings. Large-scale mechanized fertilization equipment is efficient, but expensive and not suitable for small-scale farmland or greenhouses. Intelligent fertilization equipment that relies on electronic components can be precisely controlled, but it has high manufacturing and maintenance costs and is prone to failure in humid field environments. Traditional manual fertilization methods are not only inefficient, but also difficult to accurately control fertilizer dosage and nutrient ratio, often leading to nutrient imbalance, which affects crop yield and quality and easily causes soil fertility degradation.

[0003] How to invent a nutrient-balanced application device for rice-vegetable rotation to improve these problems has become an urgent issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a rice-vegetable rotation nutrient balanced application device, which aims to improve the problems of existing large-scale fertilization equipment being unsuitable for small-scale farmland or greenhouses, intelligent fertilization equipment being costly and prone to failure, and traditional manual fertilization being inefficient and having an unbalanced nutrient supply.

[0005] This utility model is implemented as follows: A nutrient balance application device for rice-vegetable rotation includes an integrated multi-compartment shell. The integrated multi-compartment shell includes two side-by-side liquid storage sections. One end of each of the two liquid storage sections is connected to a corresponding end of a three-way connector. The other end of the three-way connector is connected to a liquid outlet pipe. Each liquid storage section is equipped with a stirring and mixing structure. The three-way connector is equipped with a flow path adjustment structure. The liquid outlet pipe is equipped with a quantitative liquid outlet structure. The other end of the liquid outlet pipe is detachably connected to an infusion needle. A handle is fixedly connected between the top surfaces of the two liquid storage sections.

[0006] In a preferred embodiment of this utility model, the flow path adjustment structure includes a base integrally mounted on the top outer wall of the three-way connector. A through hole is formed on the surface of the base, and a first rotating shaft is rotatably mounted in the through hole. A sealing baffle is integrally formed on one side of the bottom end of the first rotating shaft. The shape of the sealing baffle corresponds to the structure of the three-way connector inside the three-way connector. A first knob is integrally formed on the top end of the first rotating shaft. An insertion hole is formed on the surface of the first knob, and a limiting rod is inserted into the insertion hole. A flange is formed on the top end of the limiting rod, and a limiting spring is fixedly connected between the bottom surface of the flange and the top surface of the first knob. The limiting spring is sleeved outside the limiting rod, and the bottom end of the limiting rod is inserted into a corresponding limiting hole. There are two limiting holes, and the positions of the two limiting holes are symmetrically distributed along the axis of the liquid outlet pipe.

[0007] In a preferred embodiment of this utility model, the sealing baffle is covered with a sealing rubber sleeve.

[0008] In a preferred embodiment of this utility model, the quantitative liquid dispensing structure includes a boss integrally formed on the outer wall of the top of the liquid dispensing pipe. A through hole is formed on the surface of the boss, and a second rotating shaft is rotatably installed in the through hole. A spherical valve core is integrally formed at the bottom end of the second rotating shaft. The spherical valve core is coaxially formed with the liquid dispensing pipe and its diameter is the same as the inner diameter of the liquid dispensing pipe. A liquid-passing groove is formed on one side of the outer wall of the spherical valve core. The top end of the second rotating shaft extends to the outside of the liquid dispensing pipe and is provided with a second knob. A torsion spring structure and a damping structure are provided between the second rotating shaft and the boss.

[0009] In a preferred embodiment of this utility model, the upper surface of the second knob is provided with a gear position indicator, and the upper surface of the protrusion is provided with a plurality of gear position indicators.

[0010] In a preferred embodiment of this utility model, a sealing mounting hole is provided on the surface of each liquid storage part away from the three-way connector. Each stirring and mixing structure includes a mounting shaft, which is rotatably mounted in the sealing mounting hole. One end of the mounting shaft extends into the interior of the liquid storage part, and several sets of uniformly distributed mixing blades are arranged on its outer wall along its extension direction. The number of each mixing blade is multiple and they are evenly distributed in a ring around the mounting shaft. The other end of the mounting shaft is located outside the liquid storage part and is integrally provided with a screwing part.

[0011] In a preferred embodiment of this utility model, each of the liquid storage sections has an injection port at one end of its top surface, and each injection port is detachably connected to a sealing cap.

[0012] In a preferred embodiment of this utility model, the infusion needle has a length scale marking on its outer wall.

[0013] The beneficial effects of this utility model are as follows: The rice-vegetable rotation nutrient equalization application device obtained by the above design adopts a purely mechanical structure, eliminating complex electronic components, reducing manufacturing and maintenance costs, making it easy for farmers to bear and maintain; its handheld form allows for flexible operation, adapting to small-scale rice-vegetable rotation farmland and greenhouse environments, and meeting the needs of precise nutrient supply in small areas; through the synergy of dual-compartment flow path switching, quantitative liquid dispensing, and stirring and mixing structure, it can quickly switch to rice-vegetable special nutrient solution, achieving uniform and quantitative nutrient application, ensuring balanced nutrient supply for rotation crops, and taking into account both crop yield and quality improvement and fertilizer conservation. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure provided by the embodiment of this utility model; Figure 2 A schematic perspective view of the overall cross-sectional separation structure provided for an embodiment of this utility model; Figure 3 A perspective view of the integrated multi-compartment shell structure provided for embodiments of this utility model; Figure 4 A three-dimensional schematic diagram of the overall structure of the flow path adjustment structure provided for an embodiment of this utility model; Figure 5 A three-dimensional schematic diagram of the overall separation structure of the quantitative liquid output structure provided for an embodiment of this utility model; Figure 6 A three-dimensional schematic diagram of the overall structure of the stirring and mixing structure provided for an embodiment of this utility model.

[0016] In the diagram: 1-Integrated multi-compartment shell; 2-Flow path adjustment structure; 3-Quantitative liquid dispensing structure; 4-Stirring and mixing structure; 5-Infusion needle; 6-Handle; 101-Liquid storage section; 102-T-connector; 103-Dispensing pipe; 104-Sealing mounting hole; 105-Injection port; 106-Sealing cap; 201-Base; 202-First rotating shaft; 203-Sealing baffle; 204-First knob; 205-Limiting rod; 206-Limiting spring; 207-Limiting hole; 301-Boss; 302-Second rotating shaft; 303-Spherical valve core; 304-Liquid passage groove; 305-Second knob; 306-Gear position indicator; 307-Gear position indicator; 401-Mounting shaft; 402-Mixing blade; 403-Turning part. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Please see Figures 1 to 6 This utility model provides a technical solution: a rice-vegetable rotation nutrient balanced application device, including an integrated multi-compartment shell 1, the integrated multi-compartment shell 1 including two side-by-side liquid storage sections 101, one end of each of the two liquid storage sections 101 is connected to one end of a three-way connector 102, the other end of the three-way connector 102 is connected to an outlet pipe 103, each liquid storage section 101 is provided with a stirring and mixing structure 4, the three-way connector 102 is provided with a flow path adjustment structure 2, the outlet pipe 103 is provided with a quantitative liquid dispensing structure 3, the other end of the outlet pipe 103 is detachably connected to an infusion needle 5, and a handle 6 is fixedly connected between the top surfaces of the two liquid storage sections 101.

[0019] Please see Figure 4 The flow path adjustment structure 2 includes a base 201 integrally mounted on the top outer wall of the three-way connector 102. The base 201 has a through hole on its surface, and a first rotating shaft 202 is rotatably mounted in the through hole. A sealing baffle 203 is integrally mounted on the outer wall of one side of the bottom end of the first rotating shaft 202. The shape of the sealing baffle 203 corresponds to the structure of the three-way connector inside the three-way connector 102. A first knob 204 is integrally mounted on the top end of the first rotating shaft 202. A socket is opened on the surface of the first knob 204, and a limiting rod 205 is inserted into the socket. A flange is provided on the top end of the limiting rod 205. A limiting spring 206 is fixedly connected between the bottom surface of the flange and the top surface of the first knob 204. The limiting spring 206 is sleeved on the outside of the limiting rod 205. The bottom end of the limiting rod 205 is inserted into a corresponding limiting hole 207. There are two limiting holes 207, and the positions of the two limiting holes 207 are symmetrically distributed along the axis of the liquid outlet pipe 103.

[0020] The base 201 of the flow path adjustment structure 2 is integrally formed with the top outer wall of the tee connection 102 to ensure structural stability. The first rotating shaft 202 is rotatably mounted in the through hole of the base 201 via a bearing, ensuring smooth rotation and preventing loosening. The sealing baffle 203 is shaped to perfectly fit the internal structure of the tee and is covered with a chemically resistant silicone sealing sleeve. When rotating, it can tightly fit the inner wall of the tee, completely blocking the flow path on one side. The first knob 204 is easy to operate manually, and when rotated, it drives the first rotating shaft 202 and the sealing baffle 203 to rotate synchronously. Under the elastic force of the limiting spring 206, the bottom end of the limiting rod 205 is inserted into the limiting hole 207 in the normal state, limiting the rotation angle of the first rotating shaft 202 and preventing accidental switching of the flow path. When switching flow paths, lift the top flange of the limiting rod 205 upwards to overcome the spring force and separate it from the current limiting hole 207. Rotate the first knob 204 to turn the sealing baffle 203 to the other side, making the originally blocked flow path open and the originally open flow path blocked. After rotating to the correct position, release the limiting rod 205. Under the spring's rebound force, its bottom end automatically inserts into the new limiting hole 207 to complete the limiting. The two limiting holes 207 are symmetrically distributed along the axis of the outlet pipe 103 to ensure that the sealing baffle 203 can be accurately limited at both extreme positions.

[0021] Furthermore, the sealing baffle 203 is covered with a sealing sleeve.

[0022] The sealing sleeve covering the outer surface of the sealing baffle 203 is made of chemically resistant silicone material, possessing excellent flexibility and sealing performance. When the sealing baffle 203 rotates within the tee connection 102, the sealing sleeve tightly adheres to the inner wall of the tee, maintaining a good seal even with slight wear over long-term use due to its elasticity. During flow path switching, the sealing sleeve effectively blocks the nutrient solution between the two liquid storage sections 101, preventing cross-contamination.

[0023] Please see Figure 5 The quantitative liquid dispensing structure 3 includes a boss 301 integrally disposed on the top outer wall of the liquid dispensing pipe 103. A through hole is opened on the surface of the boss 301, and a second rotating shaft 302 is rotatably installed in the through hole. A spherical valve core 303 is integrally disposed at the bottom end of the second rotating shaft 302. The spherical valve core 303 is coaxially disposed with the liquid dispensing pipe 103 and its diameter is the same as the inner diameter of the liquid dispensing pipe 103. A liquid-passing groove 304 is opened on one side of the outer wall of the spherical valve core 303. The top end of the second rotating shaft 302 extends to the outside of the liquid dispensing pipe 103 and is provided with a second knob 305. A torsion spring structure and a damping structure are provided between the second rotating shaft 302 and the boss 301.

[0024] The boss 301 of the metering dispensing structure 3 is integrally formed with the top outer wall of the dispensing pipe 103, providing a stable mounting base for the second rotating shaft 302. The second rotating shaft 302 is rotatably mounted in the through hole of the boss 301 via a bearing. The diameter of the bottom spherical valve core 303 is consistent with the inner diameter of the dispensing pipe 103, ensuring a tight fit with the inner wall. The liquid-passing groove 304 opened on one side of the outer wall of the spherical valve core 303 has an included angle of 120°. The second knob 305 at the top of the second rotating shaft 302 facilitates rotational operation. The torsion spring structure between it and the boss 301 can drive the spherical valve core 303 to automatically reset. The damping structure, such as the damping washer, controls the reset speed, causing the spherical valve core 303 to rotate slowly. In the initial state, the liquid passage groove 304 faces the infusion needle 5, and the ball valve core 303 completely seals the outlet tube 103. When the second knob 305 is rotated, the ball valve core 303 rotates, and a gap is formed between the liquid passage groove 304 and the inner wall of the outlet tube 103. The nutrient solution flows out through the gap, and the larger the rotation angle, the more liquid is dispensed. After the knob is released, under the combined action of the torsion spring and damping, the ball valve core 303 slowly returns to its original position until the liquid passage groove 304 faces the infusion needle 5 again, the flow path is blocked, and a quantitative dispensing is completed. The linear relationship between the rotation angle of the spherical valve core 303 and the liquid flow rate enables precise control of fertilizer dosage. The amount of fertilizer can be precisely adjusted according to the nutrient requirements of different crops (rice and vegetables) and their growth stages, avoiding excessive or insufficient fertilizer application and promoting balanced nutrient application. The automatic reset and damping control design of the torsion spring ensures that the flow path is automatically blocked after each dispensing, requiring only the rotation of a knob, simplifying fertilization operations and improving efficiency. The spherical valve core 303 has a simple and reliable structure, is not prone to clogging, and is suitable for quantitative application of various nutrient solutions, enhancing the applicability of the device.

[0025] Furthermore, the upper surface of the second knob 305 is provided with a gear position indicator mark 306, and the upper surface of the boss 301 is provided with several gear position marks 307.

[0026] The gear indicator 306 on the upper surface of the second knob 305 is raised or colored for easy identification; several gear indicators 307 on the upper surface of the boss 301 correspond to different rotation angles of the ball valve core 303, and each indicator represents a fixed liquid volume, such as 30° corresponding to 5ml, 60° corresponding to 10ml, etc. When using the product, the user can rotate the gear indicator 306 to the corresponding gear indicator 307 according to the crop's fertilizer requirements to achieve quantitative fertilization of that dosage.

[0027] Please see Figure 3 and Figure 6Each liquid storage section 101 has a sealing mounting hole 104 on one end surface away from the three-way connector 102. Each stirring and mixing structure 4 includes a mounting shaft 401. The mounting shaft 401 is rotated in the sealing mounting hole 104. One end of the mounting shaft 401 extends into the interior of the liquid storage section 101 and several sets of uniformly distributed mixing blades 402 are arranged on its outer wall along its extension direction. There are multiple mixing blades 402, which are evenly distributed in a ring around the mounting shaft 401. The other end of the mounting shaft 401 is located outside the liquid storage section 101 and is integrally provided with a screwing part 403.

[0028] The sealing mounting hole 104 at the end of the liquid storage section 101 adopts a threaded sealing structure, and the mounting shaft 401 is rotatably installed in it through a sealing ring to ensure the sealing of the liquid storage section. The mounting shaft 401 is located on the outer wall of one end inside the liquid storage section, and multiple sets of mixing blades 402 are arranged along the extension direction. Each set of blades is evenly distributed in a ring around the mounting shaft. When the user manually screws the screw head 403, the mounting shaft 401 drives the mixing blades 402 to rotate, which can actively stir the nutrient solution and prevent nutrient precipitation and stratification. When the nutrient solution in the liquid storage section 101 flows to the three-way connection, the liquid flow pushes the mixing blades 402 to rotate passively, realizing passive stirring and ensuring that the nutrient solution is always uniform during fertilization. The screw head 403 has a polygonal design for easy manual operation. The dual manual and passive mixing modes ensure that the nutrient solution is always evenly mixed during storage and fertilization, avoiding uneven fertilization caused by nutrient stratification and ensuring balanced nutrient application during rice-vegetable rotation. The simple and reliable structure requires no additional power source, reducing equipment cost and energy consumption, and is easy to maintain and clean, improving the practicality and economy of the equipment.

[0029] Furthermore, each liquid storage section 101 has an injection port 105 at one end of its top surface, and a sealing cap 106 is detachably connected to each injection port 105.

[0030] The inlet 105 at the top of the storage compartment 101 features a wide-mouth design, facilitating the addition of nutrient solution and preventing spillage. The sealing cap 106 is threaded to the inlet 105, with a rubber sealing ring between them to ensure the sealing of the storage compartment 101 and prevent nutrient solution leakage or external contamination. To add nutrient solution, simply unscrew the sealing cap 106; after adding, tighten the sealing cap 106. The operation is simple and convenient.

[0031] Furthermore, the infusion needle 5 has length markings on its outer wall.

[0032] The length markings on the outer wall of the infusion needle 5 are laser-engraved or printed, ensuring clear and wear-resistant graduations in centimeters, such as 5cm, 10cm, and 15cm. During use, users can select the insertion depth according to the crop's root system depth; for example, insert 10cm for rice roots and 5cm for leafy vegetables, ensuring precise delivery of the nutrient solution to the vicinity of the crop roots and improving nutrient absorption efficiency.

[0033] Working principle: Two liquid storage sections 101 store special nutrient solutions suitable for rice and vegetables respectively. The nutrient solutions are uniformly mixed by manually turning the mixing structure 4 or by passively pushing the liquid flow, avoiding nutrient stratification. When using, the user holds the handle 6 and lifts the limiting rod 205 upwards, rotating the first knob 204 to rotate the sealing baffle 203. With the cooperation of the limiting spring 206 and the limiting hole 207, the flow path of the corresponding liquid storage section 101 is precisely switched. At the same time, the length scale markings on the outer wall of the infusion needle 5 are used to insert it into the soil to the appropriate depth for the crop roots. Then, the second knob 305 is rotated. The spherical valve core 303 rotates with the second rotating shaft 302, and the nutrient solution flows out through the gap formed between the liquid groove 304 and the inner wall of the liquid outlet pipe 103. By aligning the gear indicator 306 with the gear indicator 307 on the boss 301, the rotation angle of the spherical valve core 303 is precisely controlled to match the required fertilizer dosage. After releasing the second knob 305, under the synergistic action of the torsion spring structure and the damping structure, the spherical valve core 303 slowly resets and closes the liquid outlet pipe 103, ultimately realizing the rapid switching, uniform supply and quantitative application of nutrient solutions for different crops in the rice-vegetable rotation scenario, ensuring that the nutrients are balanced and adapted to the needs of the crops.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A nutrient-balanced application device for rice-vegetable rotation, characterized in that, The device includes an integrated multi-compartment housing, comprising two side-by-side liquid storage sections. One end of each liquid storage section is connected to a corresponding end of a three-way connector. The other end of the three-way connector is connected to a liquid outlet pipe. Each liquid storage section has an internal stirring and mixing structure. The three-way connector has an internal flow path adjustment structure. The liquid outlet pipe has an internal metering liquid outlet structure. The other end of the liquid outlet pipe is detachably connected to an infusion needle. A handle is fixedly connected between the top surfaces of the two liquid storage sections.

2. The rice-vegetable rotation nutrient balance application device as described in claim 1, characterized in that: The flow path adjustment structure includes a base integrally mounted on the top outer wall of the three-way connector. The base has a through hole on its surface, and a first rotating shaft is rotatably mounted in the through hole. A sealing baffle is integrally mounted on one side of the bottom end of the first rotating shaft. The shape of the sealing baffle corresponds to the structure of the three-way connector inside the three-way connector. A first knob is integrally mounted on the top end of the first rotating shaft. The first knob has an insertion hole on its surface, and a limiting rod is inserted into the insertion hole. A flange is provided on the top end of the limiting rod. A limiting spring is fixedly connected between the bottom surface of the flange and the top surface of the first knob. The limiting spring is sleeved on the outside of the limiting rod. The bottom end of the limiting rod is inserted into a corresponding limiting hole. There are two limiting holes, and the positions of the two limiting holes are symmetrically distributed along the axis of the liquid outlet pipe.

3. The rice-vegetable rotation nutrient balanced application device as described in claim 2, characterized in that: The sealing baffle is covered with a sealing rubber sleeve.

4. The rice-vegetable rotation nutrient balance application device as described in claim 1, characterized in that: The quantitative liquid dispensing structure includes a boss integrally formed on the top outer wall of the liquid dispensing pipe. A through hole is formed on the surface of the boss, and a second rotating shaft is rotatably installed in the through hole. A spherical valve core is integrally formed at the bottom end of the second rotating shaft. The spherical valve core is coaxially arranged with the liquid dispensing pipe and its diameter is the same as the inner diameter of the liquid dispensing pipe. A liquid-passing groove is formed on one side of the outer wall of the spherical valve core. The top end of the second rotating shaft extends to the outside of the liquid dispensing pipe and is provided with a second knob. A torsion spring structure and a damping structure are provided between the second rotating shaft and the boss.

5. The rice-vegetable rotation nutrient balance application device as described in claim 4, characterized in that: The upper surface of the second knob is provided with a gear position indicator, and the upper surface of the protrusion is provided with several gear position indicators.

6. The rice-vegetable rotation nutrient balance application device as described in claim 1, characterized in that: Each of the liquid storage sections has a sealing mounting hole on one end surface away from the three-way connector. Each of the stirring and mixing structures includes a mounting shaft, which is rotatably mounted in the sealing mounting hole. One end of the mounting shaft extends into the interior of the liquid storage section, and several sets of evenly distributed mixing blades are arranged on its outer wall along its extension direction. The number of each mixing blade is multiple and they are evenly distributed in a ring around the mounting shaft. The other end of the mounting shaft is located outside the liquid storage section and is integrally provided with a screwing part.

7. The rice-vegetable rotation nutrient balanced application device as described in claim 1, characterized in that: Each of the liquid storage sections has an injection port at one end of its top surface, and each injection port is detachably connected to a sealing cap.

8. The rice-vegetable rotation nutrient balanced application device as described in claim 1, characterized in that: The infusion needle has length markings on its outer wall.

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