A corn high-temperature-resistant germplasm resource screening auxiliary device

Abstract

The utility model discloses a kind of corn high-temperature-resistant germplasm resource screening auxiliary devices, the utility model mainly includes, heat preservation box, cultivation frame, pull rod and locking piece;Pull rod cultivation frame is displaced along vertical direction, so that corn plant is by strip hole to extend to the upper portion of heat preservation box, locking piece is locked to pull rod to lock cultivation frame height;The utility model solves the problem that corn germplasm resource screening experiment is inconvenient to observe and sample in different periods of plant, can effectively facilitate plant sampling and record of operating personnel, reduce the influence on its growth environment in sampling process.

Description

Technical Field

[0001] This application relates to the field of maize germplasm screening, specifically to an auxiliary device for screening high-temperature resistant maize germplasm resources. 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, when creating high-temperature stress environments, desktop greenhouse structures are often used for cultivation. In actual laboratory environments, this type of device is inconvenient for daily use because it requires frequent observation of plant growth and sampling of roots or leaves at different growth stages. There are many inconveniences in handling and observing plants.

[0005] Therefore, this application proposes an auxiliary device for screening maize heat-resistant germplasm resources, which separates each row of plants, allows each row of plants to slide and adjust its height individually and lock it, so that the plants are exposed outside the device for observation and sampling. Utility Model Content

[0006] The purpose of this invention is to provide an auxiliary device for screening high-temperature resistant maize germplasm resources, aiming to solve the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for screening high-temperature resistant maize germplasm resources, comprising: The insulated box has several evenly spaced holes at the top to allow the corn plants to extend out of the box. The cultivation rack is provided in several sets. The two sides of the cultivation rack are slidably connected to the inner wall of the heat preservation box. A lifting rod is fixedly installed at the upper end of the cultivation rack. The lifting rod passes through the upper end of the heat preservation box and is slidably connected to the upper wall of the heat preservation box. A locking element is located inside the upper wall of the insulated box to lock the lifting rod. The lifting rod moves the cultivation rack vertically so that the corn plants can extend through the strip holes to the top of the insulation box. The locking device locks the lifting rod to lock the height of the cultivation rack.

[0008] By using a lifting rod to individually match a set of cultivation racks, a row of corn plants can be lifted to the top of the insulated box by pulling the lifting rod. The lifting rod is automatically locked by a locking device, which allows the experimenters to free their hands to perform operations such as sampling of the plants. It also facilitates the individual observation and recording of each row of plants, effectively improving the convenience of corn germplasm screening and increasing experimental efficiency.

[0009] Furthermore, a temperature control mechanism is snapped onto the rear end of the insulation box, which is connected to the interior of the insulation box to control the temperature and humidity levels inside the insulation box. A water circulation device is installed on the side of the insulation box, which is connected to the interior of the insulation box through a circulation pipe. The front wall of the insulation box is made of insulated glass.

[0010] Furthermore, a cover plate is hinged to the strip hole to seal the strip hole. A sliding groove is provided on the inner wall of the insulated box away from the lifting rod. The end of the cultivation rack away from the lifting rod is slidably connected to the insulated box through the sliding groove. An L-shaped sliding rod for opening the cover plate is also slidably connected inside the sliding groove.

[0011] Furthermore, the short end of the L-shaped slide bar is positioned at the lower end of the cultivation rack, the lower end of the L-shaped slide bar is connected to the bottom wall of the trough via a waterproof elastic element, the upper end of the L-shaped slide bar is positioned at the lower part of the cover plate, the upper end of the L-shaped slide bar has a spherical structure, and the locking element includes: A trapezoidal locking pin is slidably connected to the upper part of the insulation box, and the rear end of the trapezoidal locking pin is connected to the inner wall of the upper part of the insulation box by a spring. The keyholes are evenly distributed from top to bottom on the inside of the lifting rod; The lower end of the unlocking handle is welded and fixed to the upper end of the trapezoidal lock pin.

[0012] Furthermore, the culture rack has several sets of receiving holes, and hollow culture cups are placed in the receiving holes.

[0013] Compared with existing technologies, it has the following beneficial effects: This invention provides an auxiliary device for screening high-temperature resistant maize germplasm resources. A lifting rod is individually matched with a set of cultivation racks. By pulling the lifting rod, a row of maize plants is individually lifted to the top of the insulated box. The lifting rod is automatically locked by a locking mechanism. This allows researchers to easily perform sampling and other operations on the plants by freeing their hands. It also facilitates individual observation and recording of each row of plants, effectively improving the convenience of maize germplasm screening and increasing experimental efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the auxiliary device for screening high-temperature resistant maize germplasm resources according to this utility model. Figure 2 This is a schematic diagram of the heat-insulating box of an auxiliary device for screening high-temperature resistant maize germplasm resources according to the present invention; Figure 3 This is an enlarged schematic diagram of a portion of the structure of this utility model (A). Figure 4 This is an enlarged schematic diagram of a portion of the structure of this utility model (B). Figure 5 This is a schematic diagram of the chute structure of an auxiliary device for screening high-temperature resistant maize germplasm resources according to the present invention; Figure 6 This is a schematic diagram of the culture rack structure of an auxiliary device for screening high-temperature resistant maize germplasm resources according to the present invention.

[0015] In the diagram: 1-Insulated box body; 11-Strip hole; 12-Lid plate; 13-Slide groove; 14-L-shaped slide rod; 15-Waterproof elastic component; 2-Cultivation rack; 21-Hollowed cultivation cup; 3-Lifting rod; 4-Locking component; 41-Trapezoidal locking pin; 42-Spring; 43-Lock hole; 44-Unlocking handle; 5-Temperature control mechanism; 6-Water circulation equipment. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1 to 6 As shown, this utility model provides the following technical solution: an auxiliary device for screening high-temperature resistant maize germplasm resources; comprising: The insulated box 1 has several evenly spaced slots 11 at the top to allow corn plants to extend out of the insulated box 1. The insulated box 1 is supported by an insulated material, and its inner walls are all equipped with a waterproof and heat-insulating layer, which is suitable for hydroponic environments and facilitates the control of internal temperature, humidity and other experimental parameters.

[0018] The cultivation rack 2 is provided in several sets. The two sides of the cultivation rack 2 are slidably connected to the inner wall of the heat preservation box 1. The upper end of the cultivation rack 2 is fixedly provided with a lifting rod 3. The lifting rod 3 passes through the upper end of the heat preservation box 1 and is slidably connected to the upper wall of the heat preservation box 1. The cultivation rack 2 and the lifting rod 3 are welded and fixed together, or they can be made in one piece to ensure structural strength and prevent the cultivation rack 2 from deflecting when the lifting rod 3 is used to move the cultivation rack 2. The sliding connection between the cultivation rack 2 and the inner wall of the heat preservation box 1 is equipped with a limit to prevent the cultivation rack 2 from flipping over. The side of the strip hole 11 at the top of the heat preservation box is also provided with a through hole to allow the lifting rod 3 to slide with the heat preservation box 1. This sliding connection is equipped with a dynamic seal to prevent heat loss.

[0019] Locking element 4 is located inside the upper wall of the insulated box 1 and is used to lock the lifting rod 3. The lifting rod 3 pulls the cultivation rack 2 to move vertically so that the corn plants extend from the strip hole 11 to the upper part of the heat preservation box 1. The locking part 4 locks the lifting rod 3 to lock the height of the cultivation rack 2.

[0020] See Figure 1 A temperature control mechanism 5 is snapped onto the rear end of the insulation box 1. The temperature control mechanism 5 is connected to the interior of the insulation box 1 to control the temperature and humidity levels inside the insulation box 1. The temperature control mechanism 5 adopts the form of a small air conditioning unit, which controls the temperature inside the insulation box 1 by heating the gas and exchanging heat, thus creating a high-temperature stress environment for the corn plants.

[0021] See Figure 1 A water circulation device 6 is installed on the side of the insulated box 1, and the water circulation device 6 is connected to the inside of the insulated box 1 through a circulation pipe. It provides filtered water containing nutrients to the corn plants.

[0022] See Figure 1 The front wall of the insulated box 1 is made of insulated glass. Workers can make preliminary observations and records of the corn plant growth inside through the front of the insulated box 1.

[0023] See Figure 2 A cover plate 12 is hinged to the slot 11, and the cover plate 12 seals the slot 11. A rubber sealing ring is provided on the periphery of the edge of the cover plate 12, so that there are no gaps on the periphery when the cover plate 12 covers the slot 11, thus preventing the leakage of internal heat.

[0024] As another embodiment, such as Figures 2 to 6 As shown, a groove 13 is provided on the inner wall of the insulated box 1 on the side away from the lifting rod 3. The end of the cultivation rack 2 away from the lifting rod 3 is slidably connected to the insulated box 1 through the groove 13. An L-shaped sliding rod 14 for opening the cover plate 12 is also slidably connected inside the groove 13.

[0025] The slide 13 is vertically opened from top to bottom. The cultivation rack 2 is slidably connected to the inner wall of the heat preservation box 1 through the slide 13. The sliding connection is equipped with a slide rail type limit, so that the cultivation rack 2 can only move vertically along the opening direction of the slide 13.

[0026] See Figure 3 as well as Figure 5 The short handle end of the L-shaped slide rod 14 is positioned at the lower end of the cultivation rack 2. The lower end of the L-shaped slide rod 14 is connected to the bottom wall of the slide groove 13 through a waterproof elastic element 15. The upper end of the L-shaped slide rod 14 is positioned at the lower part of the cover plate 12. The upper end of the L-shaped slide rod 14 has a spherical structure.

[0027] Under normal conditions, the cultivation rack 2 is placed at one end of the slide 13 on the upper end of the L-shaped slide bar 14. The weight of the cultivation rack 2 presses the L-shaped slide bar 14 downward, squeezing the waterproof elastic element 15 to contract. When the cultivation rack 2 is lifted by the lifting rod 3, the waterproof elastic element 15 releases its elastic potential energy, causing the L-shaped slide bar 14 to slide upward, so that its upper end contacts the cover plate 12 and drives the cover plate 12 to rotate and open. This allows the operator not to open the cover plate 12 separately. When the cultivation rack 2 is lifted, the cover plate 12 can open automatically. Then, the corn plants can be lifted out through the strip hole 11 to the upper end of the heat preservation box 1 for observation and operation. The waterproof elastic element 15 can be equipped with multiple sets of springs 42 internally and a deformable waterproof structure, such as a vacuum bellows structure, externally to ensure both elasticity and waterproof performance.

[0028] See Figure 4 as well as Figure 6 The locking element 4 includes: The trapezoidal locking pin 41 is slidably connected to the upper part of the insulation box 1, and the rear end of the trapezoidal locking pin 41 is connected to the upper inner wall of the insulation box 1 by a spring 42; the trapezoidal locking pin 41 abuts against the lifting rod 3 under the drive of the spring 42. Locking holes 43 are evenly spaced from top to bottom on the inner side of the lifting rod 3. The shape of the locking holes 43 is adapted to the trapezoidal locking pin 41. When the lifting rod 3 moves upward, the lower end of the locking holes 43 contacts the inclined surface of the trapezoidal locking pin 41 and drives the trapezoidal locking pin 41 to move in the opposite direction and disengage from the inside of the locking holes 43, so that the lifting rod 3 can normally drive the cultivation rack 2 to rise. When the lifting rod 3 is released, the trapezoidal locking pin 41 is driven by the spring 42 to insert into the locking holes 43, preventing the lifting rod 3 and the cultivation rack 2 from sliding downward.

[0029] The lower end of the unlocking handle 44 is welded and fixed to the upper end of the trapezoidal locking pin 41. After the plant sampling operation is completed, while holding the lifting rod 3, pull the unlocking handle 44 backward so that the unlocking handle 44 drives the trapezoidal locking pin 41 to disengage from the locking hole 43, and then the lifting rod 3 and the cultivation rack 2 can be returned to the initial position.

[0030] See Figure 6 The cultivation rack 2 has several sets of receiving holes, and hollow cultivation cups 21 are placed in the receiving holes. Corn plants are placed in the hollow cultivation cups 21 for hydroponic experiments.

[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. An auxiliary device for screening high-temperature resistant maize germplasm resources, characterized in that, include: The heat preservation box (1) has several strip-shaped holes (11) evenly opened at the top end to facilitate the corn plant to extend out of the heat preservation box (1); The cultivation rack (2) is provided with several sets. A lifting rod (3) is fixedly provided at the upper end of the cultivation rack (2). The lifting rod (3) passes through the upper end of the heat preservation box (1) and is slidably connected to the upper wall of the heat preservation box (1). A locking element (4) is provided inside the upper wall of the insulated box (1) to lock the lifting rod (3); The lifting rod (3) pulls the cultivation rack (2) to move vertically so that the corn plant extends from the strip hole (11) to the upper part of the heat preservation box (1). The locking member (4) locks the lifting rod (3) to lock the height of the cultivation rack (2).

2. The auxiliary device for screening high-temperature resistant maize germplasm resources according to claim 1, characterized in that, A temperature control mechanism (5) is attached to the rear end of the insulation box (1). The temperature control mechanism (5) is connected to the interior of the insulation box (1) to control the temperature comfort index inside the insulation box (1).

3. The auxiliary device for screening high-temperature resistant maize germplasm resources according to claim 1, characterized in that, A water circulation device (6) is provided on the side of the insulated box (1), and the water circulation device (6) is connected to the inside of the insulated box (1) through a circulation pipe.

4. The auxiliary device for screening high-temperature resistant maize germplasm resources according to claim 1, characterized in that, The front wall of the insulated box (1) is made of insulated glass.

5. The auxiliary device for screening high-temperature resistant maize germplasm resources according to claim 1, characterized in that, A cover plate (12) is hinged to the strip hole (11), and the cover plate (12) closes the strip hole (11).

6. The auxiliary device for screening high-temperature resistant maize germplasm resources according to claim 5, characterized in that, The inner wall of the insulated box (1) away from the lifting rod (3) has a sliding groove (13). The end of the cultivation rack (2) away from the lifting rod (3) is slidably connected to the insulated box (1) through the sliding groove (13). An L-shaped sliding rod (14) for opening the cover plate (12) is also slidably connected inside the sliding groove (13).

7. The auxiliary device for screening high-temperature resistant maize germplasm resources according to claim 6, characterized in that, The short end of the L-shaped slide rod (14) is positioned at the lower end of the cultivation rack (2). The lower end of the L-shaped slide rod (14) is connected to the bottom wall of the trough (13) through a waterproof elastic element (15). The upper end of the L-shaped slide rod (14) is positioned at the lower part of the cover plate (12). The upper end of the L-shaped slide rod (14) has a spherical structure.

8. The auxiliary device for screening high-temperature resistant maize germplasm resources according to claim 1, characterized in that, The locking element (4) includes: A trapezoidal locking pin (41) is slidably connected to the upper part of the insulation box (1), and the rear end of the trapezoidal locking pin (41) is connected to the upper inner wall of the insulation box (1) by a spring (42). Lock holes (43) are evenly distributed from top to bottom on the inner side of the lifting rod (3); The lower end of the unlocking handle (44) is welded and fixed to the upper end of the trapezoidal locking pin (41).

9. The auxiliary device for screening high-temperature resistant maize germplasm resources according to claim 1, characterized in that, The culture rack (2) has several sets of receiving holes, and hollow culture cups (21) are placed in the receiving holes.

Images