Corn water culture test device
The corn hydroponic device, which combines a circular cultivation box and a limiting frame with laser positioning, solves the problem of plant shading, enables non-destructive measurement of leaf and root length, and improves data accuracy and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 琼海市热带作物服务中心
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-21
AI Technical Summary
In traditional hydroponic corn systems, the spacing between plants is too small, which makes it easy to obstruct measurements of leaves and roots, making non-destructive measurements difficult and affecting data accuracy and experimental consistency.
Design a hydroponic experimental device for corn, using a ring-shaped incubator and a rotatable limiting frame, combined with laser positioning and a sliding measuring device, to achieve leaf and root length measurement without removing the plant, and reduce plant damage through an integrated operating platform using a weighing device.
It improves the accuracy of experimental data, reduces the workload of operators, enhances the integration of the device, and facilitates daily experimental operations.
Smart Images
Figure CN224522001U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of maize breeding experiments, specifically to a maize hydroponic experimental device. Background Technology
[0002] Maize is one of the world's most important food and economic crops, providing not only staple food and feed for humans but also essential raw materials for food processing and bioenergy. As a traditional dryland crop, the need for environmental resistance (such as resistance to high temperatures and drought) in its breeding research is becoming increasingly urgent. Hydroponic cultivation experiments have become a key research method for precisely controlling growth conditions and observing physiological responses. By fixing maize plants in a nutrient solution using soilless cultivation technology, soil interference is eliminated, allowing for precise study of its growth mechanisms under different stresses.
[0003] The corresponding hydroponic corn experimental device is designed to meet the needs of such research, so that researchers can regularly measure key indicators such as leaf length, root length, and enzyme activity, thereby screening out varieties with excellent stress resistance.
[0004] However, traditional hydroponic devices reveal significant drawbacks in practical operation: their planting holes are typically densely packed, resulting in insufficient spacing between plants. When non-destructive morphological measurements of corn at different ages are required (such as accurately measuring leaf extension length or observing complex root networks), the dense plants intertwine and obstruct each other, making it difficult for operators to take direct measurements. Furthermore, they must frequently remove the plants, a process that easily damages delicate roots or leaves, interfering with the normal growth of the experimental plants and even altering their physiological state. Ultimately, this affects the accuracy of key resistance data collection and the consistency of the experiment.
[0005] Therefore, this application proposes a corn hydroponic experimental device that determines the position of corn seeds by laser positioning without removing the corn plant, thereby simultaneously measuring the leaf and root lengths. Utility Model Content
[0006] The purpose of this invention is to provide a corn hydroponic experimental device to solve the aforementioned problems.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a corn hydroponic experimental device, comprising: The incubator has a ring-shaped structure, with culture medium inside the ring structure. The bottom of the incubator is closed and the top is open. The limiting frame has its outer and inner circumferences rotatably connected to the inner wall of the incubator, and the surface of the limiting frame is evenly provided with through holes around its circumference. A culture tube is placed inside the through hole, and a limit ring is provided around the middle circumference of the culture tube; The support frame is integrally formed with the lower end of the incubator, and a measuring device for measuring the length of corn plants inside the incubator tube is slidably installed on the side of the support frame. A laser for aligning the corn seeds is fixedly connected to the lower part of the measuring device; The rotation of the limiting frame causes the cultivation tube to move to the side of the measuring device. The measuring device slides vertically so that the laser is aligned with the corn seed, thereby measuring the leaf length and root length of the corn plant.
[0008] The circular incubation box and rotatable limiting frame allow the corn plant to be measured to be moved to the side of the measuring device by directly rotating the limiting frame, without being obstructed by other plants. By sliding the measuring device, the laser beam passes through the incubation box and the incubation tube and is aimed at the corn seed. The leaf and root lengths of the corn plant can then be measured and recorded directly through the measuring device. This eliminates the need to remove the corn plant for measurement, making the operation easier for operators and reducing damage to the corn plant. It can effectively improve the accuracy of experimental data and reduce the labor intensity of operators.
[0009] Furthermore, a sliding limit plate is provided on the side of the bracket, and the measuring device is connected to the bracket with a limit through the sliding limit plate. Height lines are engraved on the surfaces of both the measuring device and the laser. A threaded hole is opened at the upper end of the bracket, and a round handle is fixedly connected to the upper part of the measuring device. A lead screw is rotatably connected to the upper end of the round handle, and the lead screw is threadedly connected to the threaded hole.
[0010] Furthermore, a rotating handle that is easy to rotate manually is fixedly connected to the upper end of the lead screw, and handles are evenly connected around the circumference of the limiting frame. A drain pipe is connected to the lower side of the incubator, and a valve is installed inside the drain pipe.
[0011] Furthermore, it also includes a weighing device, the rear end of which is fixedly connected to a support, and a connecting handle is fixedly connected to the side of the support. A liquid collection cup is detachably connected to the end of the connecting handle away from the support, and the liquid collection cup is positioned below the weighing device.
[0012] The weighing device allows for direct removal of the culture tubes and their weighing, thus recording the weight of the corn plant. Simultaneously, the weighing device can be used as a platform for operators to directly sample corn roots or leaves to measure the activity of various enzymes. This makes the culture box more integrated and easier for operators to perform daily experimental operations.
[0013] Furthermore, a telescopic handle is fixedly installed in the middle of the incubator, and the telescopic handle has a locking function to facilitate the movement and handling of the incubator by the operators.
[0014] Compared with existing technologies, it has the following beneficial effects: This invention provides a corn hydroponic experimental device. Through a circular incubation box and a rotatable limiting frame, the corn plant to be measured can be moved to the side of the measuring device by directly rotating the limiting frame without being obstructed by other plants. The sliding measuring device allows the laser beam to pass through the incubation box and incubation tube, aligning with the corn seed. The leaf and root lengths of the corn plant can then be directly measured and recorded using the measuring device. This eliminates the need to remove the corn plant for measurement, making the operation easier for operators and reducing damage to the corn plant. It effectively improves the accuracy of experimental data and reduces the workload of operators. The weighing device allows for direct removal of the culture tubes and their weighing, thus recording the weight of the corn plant. Simultaneously, the weighing device can be used as a platform for operators to directly sample corn roots or leaves to measure the activity of various enzymes. This makes the culture box more integrated and easier for operators to perform daily experimental operations. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a corn hydroponic experimental device according to the present invention; Figure 2 This is an exploded schematic diagram of a corn hydroponic experimental device according to the present invention; Figure 3 This is another overall schematic diagram of a corn hydroponic experimental device according to this utility model; Figure 4 This is an enlarged schematic diagram of a portion of the structure of this utility model (A). Figure 5 This is an enlarged schematic diagram of a portion of the structure of this utility model (B).
[0016] In the diagram: 1-Incubator; 11-Drain pipe; 12-Telescopic handle; 2-Limiting frame; 21-Through hole; 22-Handle; 3-Incubation tube; 31-Limiting ring; 4-Support; 41-Sliding limiting plate; 42-Threaded hole; 43-Connecting handle; 44-Collection cup; 5-Measuring device; 51-Laser; 52-Round handle; 53-Lead screw; 54-Rotating handle; 6-Weighing device. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figures 1 to 5 As shown, this utility model provides the following technical solution: a corn hydroponic experimental device; comprising: The cultivation box 1 has a ring-shaped structure with a culture solution inside. The bottom of the cultivation box 1 is closed while the top is open. The outer circumference of the cultivation box 1 is made of transparent material to facilitate the measurement of the root length of the corn plants and to facilitate the observation of the growth of the corn inside. The culture solution can be directly injected through the top of the cultivation box 1, or it can be replenished for a long time using a nutrient solution circulation system.
[0019] The limiting frame 2 is rotatably connected to the inner wall of the incubator 1 on its outer and inner circumferences respectively. The limiting frame 2 has through holes 21 evenly distributed around its surface. The limiting frame 2 is also made of transparent material. The rotatable connection between the limiting frame 2 and the incubator 1 is located at the lower part of the limiting frame 2. The limiting frame 2 can be removed for cleaning by moving it upwards, and the inside of the incubator 1 can be cleaned.
[0020] The cultivation tube 3 is placed inside the through hole 21. A limiting ring 31 is provided around the middle of the cultivation tube 3. The cultivation tube 3 is a transparent glass test tube with an opening at the bottom suitable for plant cultivation. The culture solution enters the cultivation tube 3 through the opening. When the cultivation tube 3 is placed inside the through hole 21, the limiting ring 31 cannot pass through the through hole 21, so that only the opening part of the cultivation tube 3 is located below the limiting frame 2.
[0021] The support 4 is integrally formed with the lower end of the incubator 1. A measuring device 5 for measuring the length of corn plants in the incubator tube 3 is slidably installed on the side of the support 4. A laser 51 for aligning the position of corn seeds is fixedly connected to the lower part of the measuring device 5; The rotation of the limiting frame 2 causes the cultivation tube 3 to move to the side of the measuring device 5. The measuring device 5 slides vertically so that the laser 51 is aligned with the corn seed, thereby measuring the leaf length and root length of the corn plant. Due to the different moisture contents of different types of seeds, the seed positions are affected by buoyancy at different times, resulting in different positions of the seeds below the cultivation tube 3. In addition, the water level in the cultivation box 1 varies at different times. When measurement is required, the laser 51 is turned on to emit light into the cultivation box 1, and the measuring device 5 is slid so that the photoelectric beam hits the corn seed to be measured, allowing for rapid measurement of its leaf and root length.
[0022] See Figure 3 A sliding limit plate 41 is fixedly installed on the side of the bracket 4. The measuring device 5 is connected to the bracket 4 through the sliding limit plate 41 with a limit. The sliding connection between the measuring device 5 and the sliding limit plate 41 is limited so that the measuring device 5 can only move vertically.
[0023] See Figure 1Both the measuring device 5 and the laser 51 have height lines engraved on their surfaces. The laser 51 has a 0 mark at the center, which extends upwards and downwards. This allows operators to quickly read the leaf and root lengths after aligning the laser with the corn seed without needing to perform calculations or remove the corn plant.
[0024] See Figure 3 and Figure 4 The upper end of the bracket 4 has a threaded hole 42. The upper part of the measuring device 5 is fixedly connected to a round handle 52. The upper end of the round handle 52 is rotatably connected to a lead screw 53, which is threadedly connected to the threaded hole 42. The rotatable connection between the round handle 52 and the lead screw 53 is equipped with a limit switch to prevent the lead screw 53 from disengaging from the round handle 52.
[0025] See Figure 4 The upper end of the lead screw 53 is fixedly connected to a rotating handle 54 that is easy to rotate manually. By manually rotating the rotating handle 54, the lead screw 53 is driven to rotate synchronously. Due to the threaded connection between the lead screw 53 and the threaded hole 42, the lead screw 53 is displaced in the vertical direction, which in turn drives the round handle 52 and the measuring device 5 to move synchronously. It should be noted that because the measuring device 5 is restricted by the sliding limit plate 41, it will not be driven by the lead screw 53 to rotate, but will only move in the vertical direction.
[0026] See Figure 2 The limiting frame 2 has handles 22 evenly connected around its circumference. By rotating the handles 22, the limiting frame 2 can be rotated relative to the incubator 1, thereby rotating the corn plant to be measured to the side of the measuring device 5.
[0027] See Figure 2 The lower side of the incubator 1 is connected to a drain pipe 11, and a valve is installed inside the drain pipe 11.
[0028] As another embodiment, such as Figure 1 As shown, it also includes a weighing device 6, the rear end of which is fixedly connected to the bracket 4. A connecting handle 43 is fixedly connected to the side of the bracket 4. A liquid collection cup 44 is detachably connected to the end of the connecting handle 43 away from the bracket 4. The liquid collection cup 44 is positioned below the weighing device 6.
[0029] The weighing device 6 is arranged in a ring shape, which allows the cultivation tube 3 to be placed on the weighing device 6. The limiting ring 31 of the cultivation tube 3 contacts and is limited by the weighing device 6, thus fixing the weight of the cultivation tube 3. This allows the weight of the corn plant inside to be measured and recorded. The collection cup 44 below can collect the culture solution dripping from the corn roots. This weighing device 6 arrangement allows the entire device to become a workbench. By placing the cultivation tube 3 on the weighing device 6, the operator can directly and quickly sample the leaves and roots of the corn plant (the roots will generally extend out of the opening of the cultivation tube 3) without removing the corn plant.
[0030] See Figure 1 The incubation box 1 is also fixedly equipped with a telescopic handle 12 in the middle. The telescopic handle 12 has a locking function to facilitate the movement and handling of the incubation box 1 by the operator. The telescopic handle 12 makes it easy for the operator to carry and move the device. Furthermore, the telescopic handle 12 can be set to be detachable. By removing the handle, another set of incubation boxes 1 can be set on the upper part of the telescopic rod, so that the vertical space can be used for hydroponic experiments of corn plants, or environmental devices, such as daylight lamps or heaters, can be installed on the upper end of the telescopic rod for use.
[0031] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.
Claims
1. A hydroponic corn experimental device, characterized in that, include: The incubator (1) has a ring structure and a culture medium is placed inside the ring structure. The lower part of the incubator (1) is closed and the upper part is open. The limiting frame (2) has its outer and inner circumferences rotatably connected to the inner wall of the incubator (1), and the limiting frame (2) has through holes (21) evenly distributed around its surface. A culture tube (3) is placed inside the through hole (21), and a limiting ring (31) is provided around the middle circumference of the culture tube (3); The support (4) is integrally formed with the lower end of the cultivation box (1), and a measuring device (5) for measuring the length of corn plants in the cultivation tube (3) is slidably provided on the side of the support (4). The lower part of the measuring device (5) is fixedly connected to a laser (51) for aligning the position of the corn seeds; The rotation of the limiting frame (2) causes the cultivation tube (3) to move to the side of the measuring device (5). The measuring device (5) slides vertically so that the laser (51) is aligned with the corn seed, thereby measuring the leaf length and root length of the corn plant.
2. The corn hydroponic experimental device according to claim 1, characterized in that, A sliding limit plate (41) is fixedly provided on the side of the bracket (4), and the measuring device (5) is connected to the bracket (4) with a limit through the sliding limit plate (41).
3. The corn hydroponic experimental device according to claim 1, characterized in that, Both the measuring instrument (5) and the laser (51) have height lines engraved on their surfaces.
4. The corn hydroponic experimental device according to claim 1, characterized in that, The bracket (4) has a threaded hole (42) at its upper end. The measuring instrument (5) has a round handle (52) fixedly connected to its upper part. The round handle (52) has a lead screw (53) rotatably connected to its upper end. The lead screw (53) is threadedly connected to the threaded hole (42).
5. The corn hydroponic experimental device according to claim 4, characterized in that, The upper end of the lead screw (53) is fixedly connected to a rotating handle (54) that is easy to rotate manually.
6. The corn hydroponic experimental device according to claim 1, characterized in that, The limiting frame (2) has handles (22) evenly connected around its circumference.
7. The corn hydroponic experimental device according to claim 1, characterized in that, The lower side of the incubator (1) is connected to a drain pipe (11), and a valve is provided inside the drain pipe (11).
8. The corn hydroponic experimental device according to claim 1, characterized in that, It also includes a weighing device (6), the rear end of which is fixedly connected to the support (4), and a connecting handle (43) is fixedly connected to the side of the support (4). A liquid collection cup (44) is detachably connected to the end of the connecting handle (43) away from the support (4), and the liquid collection cup (44) is positioned below the weighing device (6).
9. The corn hydroponic experimental apparatus according to claim 1, characterized in that, The incubator (1) is also fixedly provided with a telescopic handle (12) in the middle. The telescopic handle (12) has a locking function so that the operator can move and transport the incubator (1).