Rice disease detection device

Abstract

The utility model provides a rice disease detection device, and belongs to the technical field of rice disease detection. Through arrangement of a first water pump, a telescopic hose, a first water outlet pipeline, a liquid outlet funnel, a suction filtration funnel, a first water pipe, a chromatographic column and a detector, collection and enrichment treatment of a water sample of a paddy field are realized, and whether a water seed has corticoptosis cucurbitae causing rice sheath blight disease or not is detected through a liquid chromatography method, so that detection can be performed in advance in the early stage of rice planting; and peasants and agricultural workers can take targeted prevention and control measures such as reasonable use of a bactericide, adjustment of an irrigation mode and enhancement of field management in the early stage of disease occurrence, so that disease diffusion and spreading are effectively reduced, and the loss of crops is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of rice disease detection technology, specifically relating to a rice disease detection device. Background Technology

[0002] Rice sheath blight is a common disease of rice. It is caused by Rhizoctonia solani and mainly affects the leaf sheaths and leaves. Small, dark green, water-soaked spots with indistinct edges appear on the leaf sheaths, gradually enlarging into oval or cloud-like shapes. In severe cases, several spots merge to form large, irregularly patterned spots, often causing yellowing and death of the leaves. When the disease spreads rapidly on the leaves, the spots turn a dirty green and the leaves quickly rot. Infected stems often fail to produce ears. Under high temperatures, a white powdery mildew layer develops on the spots, affecting rice yield. Furthermore, if not prevented in time, it can infect the following year's or next season's rice.

[0003] The pathogen causing rice sheath blight is *Trichophyton spp.*, which primarily overwinters as sclerotia in the soil, but can also overwinter as mycelium and sclerotia on diseased rice straw and other host crop or weed debris. The large number of sclerotia falling into the field during rice harvest is the main source of primary infection in the following year or season. Sclerotia floating on the water surface adhere to the leaf sheaths at the base of the rice plant, germinate hyphae, and invade the leaf sheath tissue, causing primary infection. After disease onset, sclerotia forming on the lesions float with the water or spread through hyphae, causing secondary infection. Early rice sclerotia become the main pathogen for late rice; therefore, agricultural control methods often employ "retrieving sclerotia to reduce the source of infection; large-scale retrieval and deep burial outside the field every season."

[0004] Accurate and rapid disease detection is a key technology for integrated crop disease management. Only by quickly detecting rice disease infestations can timely and appropriate strategies be adopted and control measures be implemented quickly. Therefore, a rice disease detection device that can detect bacteria in the water of rice paddies is needed. Utility Model Content

[0005] This invention addresses the problems of the prior art by providing a rice disease detection device.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] A rice disease detection device includes a shell, a handle fixedly connected to the top surface of the shell, a first partition and a second partition fixedly connected to the upper third and lower two-thirds of the shell respectively; a first water pump fixedly connected to the top surface of the first partition; a retractable flexible hose detachably connected to the inlet of the first water pump; and a first outlet pipe fixedly connected to the outlet of the first water pump, the outlet pipe passing through the first partition.

[0008] The bottom surface of the first water outlet pipe is linearly arrayed and fixedly connected to an outlet funnel with a built-in filter screen; a suction filtration funnel is set directly below the outlet funnel, the bottom of the suction filtration funnel passes through the second partition and is fixedly installed on the second partition, the bottom outlet flange of the suction filtration funnel is connected to a first water pipe, the outlet of the first water pipe is connected to a chromatographic column, the other end of the chromatographic column is connected to a detector through a flexible tube, and the output end of the detector is connected to an external computer through a data cable.

[0009] Preferably, the first water outlet pipe is fixedly connected to the bottom surface of the first partition plate via an installation ring.

[0010] Preferably, the end of the telescopic hose that is away from itself and connected to the first water pump is fixedly connected to a water pump head with a filter element.

[0011] Preferably, the waste liquid outlet of the detector is connected to a second water pump via a second water pipe, the second water pump is fixedly connected to the top surface of the first partition, and the outlet of the second water pump is fixedly connected to a second water outlet pipe.

[0012] Preferably, the first water pipe has an outlet connected to an air pump via a pipe, and the air pump is fixedly connected to the top surface of the second partition.

[0013] Preferably, gates are fixedly connected to the side of the first water pipe connected to the chromatographic column and the side of the first water pipe connected to the air pump.

[0014] Preferably, a controller is fixedly connected to the front of the housing, and the controller is electrically connected to the first water pump, the second water pump, the air pump, the detector, and the two gates respectively.

[0015] Preferably, a filtrate gate valve is fixedly connected to the side of the filtration funnel; symmetrical baffles are fixedly connected to the left and right sides of the inner wall of the filtration funnel, and the baffles can contact the filtration membrane. The filtration membrane is detachably installed and in close contact with the inner wall of the filtration funnel through a sealing rubber ring wrapped around the side of the filtration membrane.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] This utility model discloses a rice disease detection device. Through the configuration of a first water pump, a telescopic hose, a first water outlet pipe, a liquid outlet funnel, a filtration funnel, a first water pipe, a chromatographic column, and a detector, it collects and enriches paddy field water samples, and then uses liquid chromatography to detect the presence of *Trichoderma harzianum*, a fungus that causes rice sheath blight. This allows for pre-planting detection, enabling farmers and agricultural workers to take targeted prevention and control measures at the early stages of disease occurrence, such as the rational use of fungicides, adjustments to irrigation methods, and strengthened field management, effectively reducing the spread of diseases and minimizing crop losses. Furthermore, this rice disease detection device is also applicable to the detection of pathogens in various irrigation water sources, providing assurance for the safety of agricultural water use, significantly shortening the detection cycle, and providing rapid results. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a cross-sectional view illustrating the structure of this utility model;

[0020] Figure 2 This is a front view of the structural schematic diagram of this utility model;

[0021] Figure 3 for Figure 1 A magnified view of part A in the image;

[0022] In the above figures, 1. Shell; 2. First partition; 3. Second partition; 4. First water pump; 5. Telescopic hose; 6. First outlet pipe; 7. Discharge funnel; 8. Filtration funnel; 9. First water pipe; 10. Chromatographic column; 11. Detector; 12. Mounting ring; 13. Pump head; 14. Second water pipe; 15. Second water pump; 16. Second outlet pipe; 17. Vacuum pump; 18. Gate; 19. Controller; 20. Filtration gate valve; 21. Stop block; 22. Filtration membrane; 23. Sealing rubber ring; 24. Observation plate. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1, as Figures 1-3 As shown, a rice disease detection device according to this application includes a housing 1, with a handle fixedly connected to the top surface of the housing 1. In use, workers can directly carry the rice disease detection device to the field. The housing 1 enters the paddy field, where the water depth generally does not exceed one-third of the height of the housing 1. A first partition 2 and a second partition 3 are fixedly connected to the housing 1 at the top one-third and two-thirds positions, respectively. A first water pump 4 is fixedly connected to the top surface of the first partition 2. A retractable flexible hose 5 is detachably connected to the inlet of the first water pump 4. A first water outlet pipe 6 is fixedly connected to the outlet of the first water pump 4, passing through the first partition 2. The first water outlet pipe 6 exits from the right side of the housing 1 between the first partition 2 and the second partition 3.

[0026] The bottom surface of the first water outlet pipe 6 is linearly arrayed and fixedly connected to the liquid outlet funnel 7 with a built-in filter screen; in this embodiment, three liquid outlet funnels 7 are provided; a suction filtration funnel 8 is provided directly below the liquid outlet funnel 7, the bottom of the suction filtration funnel 8 passes through the second partition 3 and is fixedly installed on the second partition 3, the bottom outlet flange of the suction filtration funnel 8 is connected to the first water pipe 9, the outlet of the first water pipe 9 is connected to the chromatographic column 10, the other end of the chromatographic column 10 is connected to the detector 11 through a flexible hose, and the output end of the detector 11 is connected to an external computer through a data cable; in use, the first water pump 4 draws water from the paddy field into the housing 1 through the telescopic flexible hose 5 and discharges it through the first water outlet pipe 6, the liquid outlet funnel 7 and the suction filtration funnel 8 on the bottom surface of the first water outlet pipe 6 realize the enrichment treatment of the water sample; then the enriched water sample enters the chromatographic column 10 and is separated into different components, and the different components after separation enter the chromatographic column 10 one after another. The detector 11 converts substances of different concentrations in the solution into electrical signals, which are then transmitted to an external computer to obtain a liquid chromatogram. Based on the retention time and peak area in the liquid chromatogram, the results are compared with standard spectra of known pathogens to determine whether *Gynostemma pentaphyllum*, which causes rice sheath blight, is present in the water. Compared with traditional culture and detection methods, the liquid chromatography method used in this application is applicable to the detection of pathogens in various irrigation water sources, providing a guarantee for the safety of agricultural water use, significantly shortening the detection cycle, and enabling rapid results. Furthermore, pre-detection of *Gynostemma pentaphyllum* in the water during the early stages of rice planting allows farmers and agricultural workers to take targeted prevention and control measures at the initial stage of disease occurrence, such as the rational use of fungicides, adjustment of irrigation methods, and strengthening of field management, effectively reducing the spread and transmission of diseases and minimizing crop losses.

[0027] The first water outlet pipe 6 is fixedly connected to the bottom surface of the first partition plate 2 via an installation ring 12;

[0028] The end of the telescopic hose 5 away from itself and connected to the first water pump 4 is fixedly connected to a water head 13 with a filter element. Both the water head 13 and the telescopic hose 5 are common products on the market, with low cost and convenient replacement. The water head 13 with the filter element separates a large amount of mud and sand and larger impurities, realizing the pretreatment of water samples collected before enrichment treatment. At the same time, the staff can control the telescopic hose 5 to draw water samples from different locations and depths in the field, and the operation is simple.

[0029] The waste liquid outlet of the detector 11 is connected to a second water pump 15 through a second water pipe 14. The second water pump 15 is fixedly connected to the top surface of the first partition 2. The outlet of the second water pump 15 is fixedly connected to a second water outlet pipe 16. The second water outlet pipe 16 passes through the right side of the housing 1 above the first partition 2. The second water outlet pipe 16 discharges the waste liquid.

[0030] The first water pipe 9 has an outlet connected to an air pump 17 via a pipe, and the air pump 17 is fixedly connected to the top surface of the second partition 3.

[0031] A gate 18 is fixedly connected to the side of the first water pipe 9 connected to the chromatographic column 10 and the side of the first water pipe 9 connected to the air pump 17, respectively.

[0032] A controller 19 is fixedly connected to the front of the housing 1. The controller 19 is electrically connected to the first water pump 4, the second water pump 15, the air pump 17, the detector 11, and the two gates 18 respectively. The controller 19 realizes the pumping and drainage, enrichment treatment of water samples, detection of water samples, and wastewater discharge of this application.

[0033] The controller 19 is used to control the electrical components used in this solution, including but not limited to sensors, motors, telescopic rods, water pumps, solenoid valves, heating wires, heat pumps, displays, computer input devices, switches, communication devices, lights, speakers, and microphones. The controller 19 is an Intel processor, AMD processor, PLC controller, ARM processor, or microcontroller. It is used in conjunction with a motherboard, memory modules, storage media, and a power supply, which is either AC power or a lithium battery. When a display screen is included, a graphics card is also included. For the operating principle of the controller 19, please refer to "Automatic Control Principles," "Microcontroller Principles and Application Simulation Cases," and "Sensor Principles and Applications" published by Tsinghua University Press. Other books in this field can also be consulted. Other automation control and electrical components not mentioned are well-known to those skilled in the art and will not be described further here.

[0034] A filtrate gate valve 20 is fixedly connected to the side of the filtration funnel 8; symmetrical baffles 21 are fixedly connected to the left and right sides of the inner wall of the filtration funnel 8, and a filtration membrane 22 is disposed in contact with the baffles 21. The filtration membrane 22 is detachably installed and tightly contacted with the inner wall of the filtration funnel 8 by a sealing rubber ring 23 wrapped around the side of the filtration membrane 22; the sealing rubber ring 23 seals the gap between the inner wall of the filtration funnel 8 and the filtration membrane 22, and the baffles 21 and the sealing rubber ring 23 enable the replacement of the filtration membrane 22.

[0035] An observation plate 24 is rotatably connected to the front of the housing 1. The observation plate 24 is fastened to the front of the housing 1 by bolts. The usage of the vacuum filter membrane 22 can be observed through the observation plate 24, and the observation plate 24 can be opened to replace the vacuum filter membrane 22.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A rice disease detection device, comprising a housing (1), wherein a handle is fixedly connected to the top surface of the housing (1), characterized in that, The housing (1) is fixedly connected to a first partition (2) and a second partition (3) at one-third and two-thirds of its length from top to bottom, respectively; a first water pump (4) is fixedly connected to the top surface of the first partition (2); the inlet of the first water pump (4) is detachably connected to a telescopic hose (5); the outlet of the first water pump (4) is fixedly connected to a first water outlet pipe (6), which passes through the first partition (2); The bottom surface of the first water outlet pipe (6) is linearly arrayed and fixedly connected to the liquid outlet funnel (7) with a built-in filter screen; a suction filtration funnel (8) is set directly below the liquid outlet funnel (7), the bottom of the suction filtration funnel (8) passes through the second partition (3) and is fixedly installed on the second partition (3), the bottom outlet flange of the suction filtration funnel (8) is connected to the first water pipe (9), the outlet of the first water pipe (9) is connected to the chromatographic column (10), the other end of the chromatographic column (10) is connected to the detector (11) through a hose, and the output end of the detector (11) is connected to an external computer through a data cable.

2. The rice disease detection device according to claim 1, characterized in that, The first water outlet pipe (6) is fixedly connected to the bottom surface of the first partition (2) through the mounting ring (12).

3. The rice disease detection device according to claim 1, characterized in that, The end of the telescopic hose (5) away from itself and connected to the first water pump (4) is fixedly connected to a water pump head (13) with a filter element.

4. The rice disease detection device according to claim 1, characterized in that, The waste liquid outlet of the detector (11) is connected to a second water pump (15) through a second water pipe (14). The second water pump (15) is fixedly connected to the top surface of the first partition (2), and the outlet of the second water pump (15) is fixedly connected to a second water outlet pipe (16).

5. The rice disease detection device according to claim 4, characterized in that, The first water pipe (9) has another outlet connected to an air pump (17) via a pipe. The air pump (17) is fixedly connected to the top surface of the second partition (3).

6. The rice disease detection device according to claim 5, characterized in that, Gates (18) are fixedly connected to the side of the first water pipe (9) connected to the chromatographic column (10) and the side of the first water pipe (9) connected to the air pump (17).

7. The rice disease detection device according to claim 6, characterized in that, The housing (1) is fixedly connected to a controller (19) on the front. The controller (19) is electrically connected to the first water pump (4), the second water pump (15), the air pump (17), the detector (11), and the two gates (18).

8. The rice disease detection device according to claim 1, characterized in that, A filtrate gate valve (20) is fixedly connected to the side of the filtration funnel (8); a baffle (21) is fixedly connected symmetrically to the inner wall of the filtration funnel (8). A filtration membrane (22) is provided in contact with the baffle (21). The filtration membrane (22) is detachably installed and in close contact with the inner wall of the filtration funnel (8) through a sealing rubber ring (23) wrapped around the side of the filtration membrane (22).

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