A water quality monitoring device for soilless cultivation of potatoes

Abstract

The utility model provides a kind of water quality monitoring device for potato soilless cultivation, it is related to potato soilless cultivation technical field, including fixed rack, water pool component, nutrient solution supplement component and stirring cleaning component etc.;Nutrient solution supplement component is connected nutrient solution tank with water pool by liquid supplementing pipe, and the realization accurate liquid supplement of being equipped with conductivity sensor and electromagnetic metering pump;Stirring cleaning component is connected servo motor with pivot, and by the stirring blade on flange sleeve and bottom helical scraper, can positive and negative rotation cleaning pool wall and stirring water body;The device is linked each component by intelligent control system, and the impurity in the inner wall and bottom of water pool is cleaned efficiently, the uniform mixing of different depth water body is realized, and nutrient solution is automatically supplied according to real-time water quality data, this solves the problem that existing device is not completely cleaned and artificial fertilizer is lagged behind, provides stable and high-quality growth water environment for potato soilless cultivation, effectively improves the accuracy of monitoring and the efficiency of planting management.

Description

Technical Field

[0001] This utility model relates to the field of soilless potato cultivation technology, and in particular to a water quality monitoring device for soilless potato cultivation. Background Technology

[0002] Soilless potato cultivation is a modern planting method that uses nutrient solutions or substrates to replace soil, providing potato roots with the water and nutrients they need for growth. It has advantages such as high yield, fewer pests and diseases, and high space utilization. In this planting model, water quality directly affects potato root development, nutrient absorption, and tuber formation. Therefore, it is necessary to monitor key parameters of nutrient solutions or irrigation water in real time, such as pH value, conductivity, and nitrogen, phosphorus, and potassium ion concentrations, to ensure that they are within the optimal range for potato growth.

[0003] However, existing water quality monitoring devices for hydroponics in potato cultivation have the following shortcomings: 1) Potato root secretions and residual nutrient solution easily form viscous sediment at the bottom of the pool. The existing device only cleans the pool wall with a side wall scraper, and the bottom water guide platform area lacks a targeted cleaning structure, which leads to long-term accumulation of sediment. This not only pollutes the water and causes root diseases, but also easily clogs the drainage pipes. At the same time, the single scraper structure cannot effectively stir the water during cleaning, resulting in uneven mixing of water quality in different areas and depths, which affects the accuracy of monitoring data. 2) Potatoes have high requirements for elements such as potassium and phosphorus during their growth. However, existing equipment relies on manual water quality testing and manual addition of nutrient solution. It cannot automatically trigger the replenishment program based on real-time data such as potassium ion and nitrate ion concentrations. This can easily lead to untimely or excessive nutrient replenishment, increasing labor costs and making it difficult to accurately meet the nutritional needs of potatoes at each growth stage. Utility Model Content

[0004] The purpose of this invention is to provide a water quality monitoring device for soilless potato cultivation to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a water quality monitoring device for soilless potato cultivation, comprising a support frame, a fixed frame installed on the top of the support frame, a water tank assembly below the fixed frame, a nutrient solution replenishment assembly fixedly installed on the fixed frame, and a stirring and cleaning assembly installed inside the water tank assembly; the water tank assembly includes a water tank body fixed to the top of the support frame, a filter box detachably installed on the top of the inner wall of the water tank body, a dirt discharge port and a water outlet pipe provided at the bottom of the water tank body, and a filter screen detachably installed at the inlet end of the water outlet pipe; the nutrient solution replenishment assembly includes a nutrient solution tank fixed to the center of the top of the fixed frame, a vertical replenishment pipe connected to the lower end of the nutrient solution tank, a horizontal replenishment pipe connected to the bottom of the vertical replenishment pipe, and a conductivity sensor and an electromagnetic metering pump installed outside the vertical replenishment pipe; the stirring and cleaning assembly includes a rotating shaft located at the center inside the water tank body, a flange fixedly fitted outside the rotating shaft, multiple stirring blades distributed circumferentially on the outer wall of the flange, and a unidirectional spiral scraper connected to the bottom of the rotating shaft.

[0006] Preferably, the water tank assembly further includes a water inlet pipe, one end of which extends through and into the main body of the water tank and is located inside the filter box. Solenoid valves are installed on both the water inlet pipe and the water outlet pipe. A temperature sensor, a potassium ion sensor, and a nitrate sensor are installed on the upper part of the inner wall of the main body of the water tank.

[0007] Preferably, the nutrient solution replenishment component further includes a feed hopper located at the top of the nutrient solution tank, the two ends of the transverse replenishment pipe are fixedly connected to the top of the inner wall of the water tank body through sealing caps, and the bottom of the transverse replenishment pipe has multiple evenly distributed outlet holes.

[0008] Preferably, the stirring and cleaning assembly further includes a baffle fixed to the top of the rotating shaft, and a silicone scraper integrally connected to the end of the stirring blade away from the flange sleeve. The silicone scraper slides in contact with the inner wall of the water tank body, and the diameter of the unidirectional spiral scraper matches the bottom of the water tank body.

[0009] Preferably, a water quality detector is fixedly installed at the lower top of the fixed frame, and a detection head is connected to the lower part of the water quality detector via a telescopic rod. A servo motor is installed at the bottom of the main body of the water tank, and the output end of the servo motor is fixedly connected to the lower end of the rotating shaft via a coupling. The water quality detector is electrically connected to the telescopic rod, the detection head, the temperature sensor, the potassium ion sensor, the nitrate sensor, the conductivity sensor, the electromagnetic metering pump, the servo motor, and the solenoid valves on the inlet and outlet pipes.

[0010] Preferably, the spiral direction of the unidirectional spiral scraper blade is consistent with the rotation direction of the stirring blade.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. This utility model utilizes an innovatively designed stirring and cleaning component. A servo motor drives the rotating shaft to rotate in both directions, allowing the silicone scrapers at the edges of the stirring blades to simultaneously clean deposits on the pool walls. Combined with a bottom unidirectional spiral scraper, it collects sediment from the pool bottom and discharges it to the waste outlet, effectively solving the problem of long-term accumulation of viscous sediment. This not only promotes thorough mixing of water at different depths but also improves the representativeness of water quality monitoring data, thereby avoiding the risk of root diseases caused by stratified contamination.

[0012] 2. This utility model, through the linkage control of the nutrient solution replenishment component, water quality detector, and various sensors, can automatically trigger the electromagnetic metering pump to accurately replenish the nutrient solution according to the real-time nutrient requirements of the potato at each growth stage. The nutrient solution is diffused into the water tank through the uniform outlet holes of the horizontal replenishment pipe, effectively avoiding the problems of untimely or excessive replenishment caused by manual operation. This not only significantly reduces labor costs but also provides a stable nutrient supply for key growth stages such as the tuber enlargement period of potatoes. Attached Figure Description

[0013] Figure 1 This invention provides one of the three-dimensional front view structures of a water quality monitoring device for soilless potato cultivation. Figure 2 This utility model presents a second perspective view of the main structure of a water quality monitoring device for soilless potato cultivation. Figure 3 This utility model provides a three-dimensional view of the internal structure of the water tank in a water quality monitoring device for soilless potato cultivation. Figure 4 A three-dimensional view of the stirring and cleaning mechanism in a water quality monitoring device for soilless potato cultivation is provided for this utility model. Figure 5 A three-dimensional diagram of a nutrient solution replenishment mechanism in a water quality monitoring device for soilless potato cultivation is provided for this utility model. Figure 6 This utility model proposes a water quality monitoring device for soilless potato cultivation. Figure 3 Enlarged 3D view of the structure at point A in the middle.

[0014] Legend: 1. Support frame; 2. Fixing frame; 3. Water tank assembly; 31. Water tank body; 32. Inlet pipe; 33. Sludge discharge port; 34. Outlet pipe; 35. Filter box; 36. Temperature sensor; 37. Potassium ion sensor; 38. Nitrate sensor; 39. Filter screen; 4. Nutrient solution replenishment assembly; 41. Nutrient solution tank; 42. Feed hopper; 43. Vertical replenishment pipe; 44. Conductivity sensor; 45. Electromagnetic metering pump; 46. Horizontal replenishment pipe; 47. Sealing cap; 48. Discharge hole; 5. Stirring and cleaning assembly; 51. Rotating shaft; 52. Flange sleeve; 53. Stirring blade; 54. Baffle; 55. One-way spiral scraper; 6. Water quality detector; 7. Telescopic rod; 8. Detection head; 9. Servo motor. Detailed Implementation

[0015] 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.

[0016] 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 can also be implemented in other ways than those described herein, and therefore the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Please see Figures 1-6 As shown, a water quality monitoring device for soilless potato cultivation includes a support frame 1, a fixed frame 2 installed on the top of the support frame 1, a water tank assembly 3 arranged below the fixed frame 2, a nutrient solution replenishment assembly 4 fixedly installed on the fixed frame 2, and a stirring and cleaning assembly 5 installed inside the water tank assembly 3.

[0018] It should be specifically noted that the water tank assembly 3 includes a water tank body 31 fixed to the top of the support frame 1. A filter box 35 is detachably installed on the top of the inner wall of the water tank body 31. A dirt discharge port 33 and a water outlet pipe 34 are provided at the bottom of the water tank body 31. A manually openable and closeable door is installed on the dirt discharge port 33. The door is closed when water is added to the water tank body 31 and opened when the water in the water tank body 31 is drained from the door 34. A filter screen 39 is detachably installed at the inlet end of the water outlet pipe 34. The nutrient solution replenishment component 4 includes a nutrient solution tank 41 fixed at the top center of the mounting frame 2. A vertical replenishment pipe 43 is connected to the lower end of the nutrient solution tank 41. A horizontal replenishment pipe 46 is connected to the bottom of the vertical replenishment pipe 43. A conductivity sensor 44 and an electromagnetic metering pump 45 are installed on the outside of the vertical replenishment pipe 43. The stirring and cleaning component 5 includes a rotating shaft 51 located at the center inside the main body of the water tank 31. A flange sleeve 52 is fixedly fitted on the outside of the rotating shaft 51. Multiple stirring blades 53 are distributed circumferentially on the outer wall of the flange sleeve 52. A one-way spiral scraper 55 is connected to the bottom of the rotating shaft 51.

[0019] Furthermore, the water tank assembly 3 also includes an inlet pipe 32, one end of which is located inside the filter box 35 and extends through the water tank body 31. Solenoid valves are installed on both the inlet pipe 32 and the outlet pipe 34. A temperature sensor 36, a potassium ion sensor 37, and a nitrate sensor 38 are installed on the upper part of the inner wall of the water tank body 31.

[0020] Furthermore, the nutrient solution replenishment component 4 also includes a feed hopper 42 located at the top of the nutrient solution tank 41, and the two ends of the transverse replenishment pipe 46 are fixedly connected to the top of the inner wall of the water tank body 31 through sealing caps 47. The bottom of the transverse replenishment pipe 46 is provided with multiple evenly distributed liquid outlet holes 48.

[0021] Furthermore, the stirring and cleaning assembly 5 also includes a baffle 54 fixed to the top of the rotating shaft 51. A silicone scraper is integrally connected to the end of the stirring blade 53 away from the flange sleeve 52. The silicone scraper slides in contact with the inner wall of the water tank body 31. The diameter of the one-way spiral scraper 55 matches the bottom of the water tank body 31. When the servo motor 9 rotates counterclockwise, it drives the rotating shaft 51 to rotate, thereby driving the stirring blade 53 to rotate and clean the side wall of the water tank body 31. At this time, the one-way spiral scraper 55 rotates synchronously to collect the sediment at the bottom of the water tank body 31 to the center of the bottom. When the servo motor 9 rotates clockwise, it drives the stirring blade 53 to rotate and clean the side wall of the water tank body 31. The one-way spiral scraper 55 rotates synchronously to guide the sediment at the bottom of the tank to the edge of the bottom and discharge it through the outlet pipe 33.

[0022] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 A water quality detector 6 is fixedly installed at the bottom of the top of the fixed frame 2. The lower part of the water quality detector 6 is connected to the detection head 8 through the telescopic rod 7. A servo motor 9 is installed at the bottom of the water tank body 31. The output end of the servo motor 9 is fixedly connected to the lower end of the rotating shaft 51 through a coupling.

[0023] It should be specifically noted that the water quality detector 6 is electrically connected to the telescopic rod 7, the detection head 8, the temperature sensor 36, the potassium ion sensor 37, the nitrate sensor 38, the conductivity sensor 44, the electromagnetic metering pump 45, the servo motor 9, and the solenoid valves on the inlet pipe 32 and the outlet pipe 34.

[0024] The water quality detector 6 can monitor water quality parameters in the main body of the pool 31 in real time, including key indicators such as temperature, potassium ion concentration, nitrate ion concentration, and conductivity. The detector head 8 can be flexibly adjusted in position by the telescopic rod 7 to ensure accurate sampling and analysis of water quality. The telescopic rod 7 can be set with reference to the hollow electric telescopic structure of existing technology, which is very convenient. The temperature sensor 36 measures the water temperature in real time, while the potassium ion sensor 37 and nitrate sensor 38 monitor the concentration of potassium ions and nitrate ions in the water, respectively. These parameters are crucial for potato growth. The conductivity sensor 44 is used to assess the content of dissolved salts in the water, reflecting the total dissolved solids in the water.

[0025] The electromagnetic metering pump 45 precisely controls the amount and frequency of nutrient solution addition based on feedback data from the water quality detector 6 to meet the nutrient requirements of potato hydroponics. The servo motor 9 not only drives the stirring and cleaning component 5 to work, but also adjusts the stirring speed and direction according to the water quality through linkage with the water quality detector 6 to optimize the cleaning effect. At the same time, the solenoid valves on the inlet pipe 32 and the outlet pipe 34 automatically open and close according to the water quality detection results to realize the circulation and discharge of water quality, ensuring that the water quality in the main body of the pool 31 is always in the best condition.

[0026] The above-mentioned actions involve sensing, feedback, judgment, and execution. It should be noted that those skilled in the art can understand and implement the technical solution of this utility model based on the sensor types set above and the commands to be executed, combined with basic knowledge of electrical engineering and similar technical application embodiments in this field. The undescribed parts are not intentionally hidden from the technical solution, but are not described because the undescribed solutions are all reasonable applications of the prior art and will not be elaborated further.

[0027] Furthermore, the spiral direction of the unidirectional spiral scraper 55 is consistent with the rotation direction of the stirring blade 53, such as... Figure 3 In the demonstration, the tilt direction of the stirring blade 53 is adapted to its rotation direction. Based on the reference position relationship shown in the figure, it can be regarded as counterclockwise rotation. Therefore, the spiral direction of the blade of the one-way spiral scraper 55 is left-handed. In this way, the dirt at the bottom of the water tank body 31 can be gradually gathered from the center of the water tank body and extended outward. Finally, as the one-way spiral scraper 55 rotates, it is pushed to the dirt discharge port 33. The dirt is not easily dispersed at the bottom of the water tank body 31, thus affecting collection and cleaning.

[0028] Furthermore, recombining Figures 1 to 6 As shown, in specific applications, the working principle of the water quality monitoring device for soilless potato cultivation described in this utility model is roughly implemented according to the following process: Step 1, Initialization Phase: The solenoid valve of the inlet pipe 32 is opened, and the liquid is injected into the main body of the water tank 31 after preliminary filtration through the filter box 35; when the water level triggers the liquid level sensor, the solenoid valve of the inlet pipe is closed, and the equipment enters the monitoring state. Step 2, Water Quality Monitoring Stage: The water quality detector 6 adjusts the detection head 8 to different depths via the telescopic rod 7, and detects the water quality through various sensors. The data is synchronously transmitted to the water quality detector 6 for analysis and comparison with preset thresholds. Step 3, Mixing stage: Servo motor 9 drives shaft 51 to rotate counterclockwise, flange sleeve 52 drives stirring blade 53 to rotate, silicone scraper on edge of stirring blade 53 cleans pool wall synchronously, one-way spiral scraper 55 collects sediment at bottom of pool to center of bottom of pool. When servo motor 9 reverses, 53 rotates side wall of clear water pool body 31, one-way spiral scraper 55 rotates synchronously to guide sediment at bottom of pool to edge dirt discharge port 33. Step 4, Automatic Liquid Replenishment Stage: When the water quality detector 6 detects that the potassium ion concentration is <200ppm or the conductivity is <1.5mS / cm, the electromagnetic metering pump 45 is triggered. The concentrated liquid in the nutrient solution tank 41 is evenly distributed to the water pool through the vertical replenishment pipe 43 and the horizontal replenishment pipe 46 and the liquid outlet 48. The replenishment volume is controlled by the flow rate of the electromagnetic metering pump 45. Step 5, Sewage Discharge Stage: After the nutrient solution is replenished, it is evenly stirred by the stirring system. At this time, the solenoid valve of the water outlet pipe 34 is opened, and the liquid is discharged into the soilless potato cultivation equipment after being filtered by the filter screen 39. When the water level drops to the height of the dirt discharge port 33, the opening and closing door is manually opened, and the deposited impurities are discharged with the water flow. After completion, the dirt discharge port is closed, and the initialization process is repeated.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the 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 this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A water quality monitoring device for soilless cultivation of potatoes, comprising a support frame (1), characterized in that: The support frame (1) is equipped with a fixed frame (2) on top, and a water tank assembly (3) is provided below the fixed frame (2). A nutrient solution replenishment assembly (4) is fixedly installed on the fixed frame (2). A stirring and cleaning assembly (5) is installed inside the water tank assembly (3). The water tank assembly (3) includes a water tank body (31) fixed to the top of the support frame (1). A filter box (35) is detachably installed on the top of the inner wall of the water tank body (31). A dirt discharge port (33) and a water outlet pipe (34) are provided at the bottom of the water tank body (31). A filter screen (39) is detachably installed at the inlet end of the water outlet pipe (34). The nutrient solution replenishment assembly (4) The nutrient solution tank (41) is fixed at the top center of the fixed frame (2). The lower end of the nutrient solution tank (41) is connected to a vertical replenishment pipe (43). The bottom of the vertical replenishment pipe (43) is connected to a horizontal replenishment pipe (46). A conductivity sensor (44) and an electromagnetic metering pump (45) are installed on the outside of the vertical replenishment pipe (43). The stirring and cleaning assembly (5) includes a rotating shaft (51) located at the center inside the main body of the pool (31). A flange sleeve (52) is fixedly fitted on the outside of the rotating shaft (51). Multiple stirring blades (53) are distributed circumferentially on the outer wall of the flange sleeve (52). A one-way spiral scraper (55) is connected to the bottom of the rotating shaft (51).

2. The water quality monitoring device for soilless cultivation of potatoes according to claim 1, characterized in that The water tank assembly (3) also includes an inlet pipe (32), one end of which extends through and into the main body of the water tank (31) and is located in the filter box (35). Solenoid valves are installed on both the inlet pipe (32) and the outlet pipe (34). A temperature sensor (36), a potassium ion sensor (37), and a nitrate sensor (38) are installed on the upper part of the inner wall of the main body of the water tank (31).

3. The water quality monitoring device for soilless cultivation of potatoes according to claim 1, characterized in that: The nutrient solution replenishment component (4) also includes a feed hopper (42) located at the top of the nutrient solution tank (41). The two ends of the horizontal replenishment pipe (46) are fixedly connected to the top of the inner wall of the water tank body (31) through sealing caps (47). The bottom of the horizontal replenishment pipe (46) is provided with multiple evenly distributed outlet holes (48).

4. The water quality monitoring device for soilless cultivation of potatoes according to claim 1, characterized in that: The stirring and cleaning assembly (5) also includes a baffle (54) fixed to the top of the rotating shaft (51). The end of the stirring blade (53) away from the flange sleeve (52) is integrally connected to a silicone scraper. The silicone scraper slides in contact with the inner wall of the water tank body (31). The diameter of the unidirectional spiral scraper (55) matches the bottom of the water tank body (31).

5. The water quality monitoring device for soilless potato cultivation according to claim 1, characterized in that: A water quality detector (6) is fixedly installed at the bottom of the top of the fixed frame (2). A detection head (8) is connected to the bottom of the water quality detector (6) via a telescopic rod (7). A servo motor (9) is installed at the bottom of the main body of the water tank (31). The output end of the servo motor (9) is fixedly connected to the bottom of the rotating shaft (51) via a coupling.

6. The water quality monitoring device for soilless cultivation of potatoes according to claim 5, characterized in that The water quality detector (6) is electrically connected to the telescopic rod (7), the detection head (8), the temperature sensor (36), the potassium ion sensor (37), the nitrate sensor (38), the conductivity sensor (44), the electromagnetic metering pump (45), the servo motor (9), and the solenoid valves on the inlet pipe (32) and the outlet pipe (34).

7. The water quality monitoring device for soilless cultivation of potatoes according to claim 1, characterized in that: The spiral direction of the unidirectional spiral scraper (55) blade is consistent with the rotation direction of the stirring blade (53).

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