A lifting-type seedling tray water control and hardening device

Abstract

This utility model discloses a lifting-type seedling tray water control and seedling hardening device, relating to the field of flue-cured tobacco seedling technology. The device includes: a seedling hardening shed with a nutrient solution at its bottom; a seedling tray for tobacco seedling cultivation, placed inside the shed and immersed in the nutrient solution; a moving device, one end of which is slidably mounted on the top of the shed, and the other end fixedly connected to the seedling tray; a detection device inside the shed, used to detect the lifting and lowering data of the seedling tray and the water control data; and a control device communicatively connected to the detection device and the moving device, used to control the movement of the moving device based on the lifting and lowering data, thereby causing the seedling tray to move up and down. With this design, the device solves the problem of the long time required for nutrient solution loading and unloading in traditional techniques by lifting the seedling tray, significantly improving seedling hardening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of flue-cured tobacco seedling technology, and in particular to a lifting seedling tray water control and seedling hardening device. Background Technology

[0002] In the process of tobacco seedling cultivation, it is necessary to harden the seedlings by controlling water for a period of time to improve their quality. The method involves draining the water (nutrient solution) from the seedling tray, waiting for the moisture content of the substrate (root ball) in the seedling tray to decrease, and then, after the seedlings show signs of wilting due to water loss, water (nutrient solution) is added back to the seedling tray. Once the seedlings resume growth, the water (nutrient solution) is drained from the seedling tray again, and this cycle is repeated. However, on the one hand, after the water (nutrient solution) is drained from the seedling tray, the bottom of the seedling tray falls directly to the bottom of the seedling tray, clogging the bottom openings of the seedling tray holes and preventing air circulation, thus severely inhibiting the rate of moisture loss from the substrate (root ball). On the other hand, frequent water inflow and outflow result in a long time and slow hardening-off efficiency. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, the present invention provides a lifting seedling tray water control and seedling hardening device.

[0004] To achieve the above objectives, this utility model provides a lifting-type seedling tray water control and hardening-off device, comprising:

[0005] The seedling hardening shed has a nutrient solution installed at the bottom;

[0006] A seedling tray for raising and cultivating flue-cured tobacco seedlings, the seedling tray being placed inside the seedling hardening shed and capable of being immersed in nutrient solution;

[0007] A mobile device, one end of which is slidably mounted on the top of the seedling shed, and the other end of which is fixedly connected to the seedling tray, is used to control the seedling tray to move up and down.

[0008] A detection device is installed inside the seedling shed. The detection device is used to detect the lifting data of the seedling tray and the water control data of the seedling tray.

[0009] A control device is communicatively connected to the detection device and the moving device. The control device is used to control the movement of the moving device according to the lifting data and water control data, so as to make the seedling tray move up and down.

[0010] Preferably, the moving device includes a sliding component and a lifting component;

[0011] The sliding assembly includes a slide rail, a slider, and a first motor. The two ends of the slide rail are fixedly connected to the seedling shed. The slider is slidably connected to the slide rail. The first motor is mounted on the slider. The slider is fixedly connected to the lifting assembly. The first motor is used to control the slider to reciprocate along the slide rail.

[0012] The lifting component is fixedly connected to the seedling tray, and the lifting component is used to control the raising and lowering of the seedling tray.

[0013] Preferably, the lifting assembly includes a first mounting frame, a pulley, a hanging rope, and a second motor;

[0014] The first mounting bracket is fixed to the bottom of the slider, and the second motor and the rope wheel are respectively disposed on both sides of the first mounting bracket. The rope wheel is rotatably connected to the first mounting bracket and is drivenly connected to the second motor. The second motor is used to control the rotation of the rope wheel.

[0015] The hanging rope is wound around the rope wheel, and one end of the hanging rope is fixedly connected to the seedling tray. The second motor is used to control the rotation of the rope wheel to control the extension length of the hanging rope, so as to control the raising and lowering of the seedling tray.

[0016] Preferably, the detection device includes a tension sensor, which is disposed on the hanging rope and is used to detect the tension of the hanging rope in lifting the seedling tray;

[0017] The control device is communicatively connected to the second motor, and the control device is used to control the operation of the second motor according to the magnitude of the tension.

[0018] Preferably, the detection device further includes a humidity sensor, which is disposed inside the seedling tray and is used to detect the humidity of the flue-cured tobacco seedlings inside the seedling tray;

[0019] The control device is used to control the operation of the second motor according to the humidity level.

[0020] Preferably, the slider is slidably connected to the slide rail via a pulley, and the slider has a first side plate and a second side plate, with the first side plate and the second side plate being perpendicularly connected.

[0021] The pulley is mounted on the slide rail, and the center of the pulley is rotatably connected to the first side plate. The first motor is connected to the pulley via a transmission. The lifting assembly is fixedly connected to the bottom of the second side plate.

[0022] Preferably, the seedling hardening shed includes uprights and crossbeams, with both ends of the crossbeams fixedly connected to the tops of two uprights, and multiple crossbeams and uprights forming the seedling hardening shed;

[0023] The two ends of the slide rail are respectively fixedly connected to the two crossbeams.

[0024] Preferably, the maximum height at which the moving device controls the seedling tray to be raised is 5 cm above the surface of the nutrient solution.

[0025] Preferably, the minimum height at which the moving device controls the seedling tray to descend is 2 cm below the surface of the nutrient solution.

[0026] Preferably, the bottom of the seedling tray is provided with a drainage outlet.

[0027] Based on this, the beneficial effects of this utility model are as follows:

[0028] This invention provides a lifting-type seedling hardening device that solves the problem of frequent drainage and watering of the bottom seedling nutrient solution in traditional technology. Water control can be achieved simply by lifting the seedling tray, thus improving the overall seedling hardening efficiency. At the same time, by lifting the seedling tray away from the nutrient solution, the problem of slow water loss caused by blocked drainage outlets when the seedling tray is placed directly on the bottom surface after drainage in traditional technology can also be solved, thereby improving the overall seedling hardening efficiency and achieving efficient water control for seedling hardening. Attached Figure Description

[0029] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0030] Figure 1 A schematic diagram illustrating the structure of a seedling hardening device according to one embodiment of the present invention;

[0031] Figure 2 A schematic diagram illustrating the structure of a mobile device according to one embodiment of the present invention;

[0032] Figure 3 A schematic diagram illustrating the structure of a seedling tray according to one embodiment of the present invention;

[0033] Explanation of reference numerals in the attached drawings: 10-Seedling shed, 101-Column, 102-Beam, 20-Seedling tray, 201-Drainage outlet, 30-Moving device, 301-Sliding assembly, 3011-Slide rail, 3012-Slider, 30121-First side plate, 30122-Second side plate, 3013-First motor, 3014-Pulley, 302-Lifting assembly, 3021-First mounting frame, 3022-Rope wheel, 3023-Hanging rope, 3024-Second motor, 40-Detection device, 401-Tension sensor, 402-Humidity sensor, 50-Control device. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms "a," "the," and "the" as used in the embodiments of this application are also intended to include the plural forms unless the context clearly indicates otherwise.

[0036] It should be understood that although the terms first, second, third, etc., may be used to describe related structures in the embodiments of this application, these related structures should not be limited to these terms. These terms are only used to distinguish related structures from each other.

[0037] Depending on the context, the word "if" as used here can be interpreted as "when" or "when". Similarly, depending on the context, the phrase "if determined" can be interpreted as "when determined" or "when (the condition or event of the statement) is detected".

[0038] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is formed "upper" or "lower" of another element, it can not only be formed directly "upper" or "lower" of the other element, but also indirectly "upper" or "lower" of the other element through an intermediate element.

[0039] Figure 1 This diagram illustrates the structure of a seedling hardening device according to one embodiment of the present invention. Figure 2 This schematic diagram illustrates the structure of a mobile device according to one embodiment of the present invention. Figure 3 This schematic diagram illustrates the structure of a seedling tray according to one embodiment of the present invention, as shown below. Figure 1-3 As shown:

[0040] Seedling shed 10, with nutrient solution installed at the bottom;

[0041] Seedling tray 20 is used for the cultivation of flue-cured tobacco seedlings. The seedling tray 20 is placed in the seedling hardening shed 10 and can be immersed in nutrient solution.

[0042] The moving device 30 has one end slidably connected to the top of the seedling shed 10 and the other end fixedly connected to the seedling tray 20. The moving device 30 is used to control the seedling tray 20 to move up and down.

[0043] The detection device 40 is installed inside the seedling shed 10. The detection device 40 is used to detect the lifting data of the seedling tray 20 and the water control data of the seedling tray 20.

[0044] The control device 50 is communicatively connected to the detection device 40 and the moving device 30. The control device 50 is used to control the movement of the moving device 30 according to the lifting data and water control data, so that the seedling tray 20 can move up and down.

[0045] This setup, by lifting the seedling tray 20, allows it to be either removed from or immersed in the nutrient solution, thereby enabling water control during seedling hardening. Compared to traditional methods of controlling water through nutrient solution discharge and replenishment, this significantly reduces the time spent on nutrient solution inflow and outflow, improving overall seedling hardening efficiency.

[0046] Furthermore, the moving device 30 includes a sliding component 301 and a lifting component 302;

[0047] The sliding component 301 includes a slide rail 3011, a slider 3012 and a first motor 3013. The two ends of the slide rail 3011 are fixedly connected to the seedling shed 10. The slider 3012 is slidably connected to the slide rail 3011. The first motor 3013 is installed on the slider 3012. The slider 3012 is fixedly connected to the lifting component 302. The first motor 3013 is used to control the slider 3012 to move back and forth along the slide rail 3011.

[0048] The lifting component 302 is fixedly connected to the seedling tray 20, and the lifting component 302 is used to control the raising and lowering of the seedling tray 20.

[0049] Specifically, the first motor 3013 is communicatively connected to the control device 50, which can control the first motor 3013 to move, thereby controlling the slider 3012 to slide along the slide rail 3011, thus realizing the horizontal adjustment of the suspension position of the seedling tray 20.

[0050] Once the seedling tray 20 is adjusted to the correct position, the lifting component 302 can control the raising and lowering of the seedling tray 20, thereby enabling the overall seedling hardening and water control operation.

[0051] The slider 3012 is slidably connected to the slide rail 3011 via the pulley 3014. The slider 3012 has a first side plate 30121 and a second side plate 30122, and the first side plate 30121 and the second side plate 30122 are vertically connected.

[0052] The pulley 3014 is mounted on the slide rail 3011, and the center of the pulley 3014 is rotatably connected to the first side plate 30121. The first motor 3013 is connected to the pulley 3014 in a transmission manner, and the lifting assembly 302 is fixedly connected to the bottom of the second side plate 30122.

[0053] Furthermore, the lifting assembly 302 includes a first mounting bracket 3021, a pulley 3022, a hanging rope 3023, and a second motor 3024;

[0054] The first mounting bracket 3021 is fixed to the bottom of the slider 3012. The second motor 3024 and the rope wheel 3022 are respectively disposed on both sides of the first mounting bracket 3021. The rope wheel 3022 is rotatably connected to the first mounting bracket 3021 and is drivenly connected to the second motor 3024. The second motor 3024 is used to control the rotation of the rope wheel 3022.

[0055] The hanging rope 3023 is wound around the rope wheel 3022. One end of the hanging rope 3023 is fixedly connected to the seedling tray 20. The second motor 3024 is used to control the rotation of the rope wheel 3022 to control the extension length of the hanging rope 3023, so as to control the raising and lowering of the seedling tray 20.

[0056] Furthermore, the detection device 40 includes a tension sensor 401, which is disposed on the hanging rope 3023 and is used to detect the tension of the hanging rope 3023 in lifting the seedling tray 20.

[0057] The control device 50 is communicatively connected to the second motor 3024, and the control device 50 is used to control the operation of the second motor 3024 according to the magnitude of the tension.

[0058] Specifically, when the seedling tray 20 is immersed in the nutrient solution, the seedling tray 20 will be subject to buoyancy. When the user operates the control device 50 to start the second motor 3024 and thus lift the seedling tray 20, the buoyancy of the seedling tray 20 gradually decreases, and the tension of the hanging rope 3023 gradually increases. When the seedling tray 20 is completely removed from the nutrient solution, the tension is at its maximum. As the seedling tray 20 continues to rise, the water stored in the seedling tray 20 is discharged through the drain outlet 201, causing the tension to gradually decrease. At this time, a relevant control program can be set in the control device 50. For example, when the seedling tray 20 is completely removed from the water surface, i.e., when the tension is at its maximum, the hanging rope 3023 can be controlled to continue rising until the seedling tray 20 is 5cm above the liquid surface and then the movement stops.

[0059] Meanwhile, when the second motor 3024 controls the seedling tray 20 to descend, when it comes into contact with the nutrient solution, the tension of its hanging rope 3023 decreases sharply due to buoyancy. Similarly, a control program can be set in the control device 50. When the tension sensor 401 detects that the tension has decreased sharply, the control device 50 controls the hanging rope 3023 to descend so that the seedling tray 20 stops at a depth of 2cm, ensuring that the seedling tray 20 is fully submerged.

[0060] Thus, by detecting changes in tension through the tension sensor 401, it can be determined whether the seedling tray 20 has detached from or come into contact with the nutrient solution, thereby achieving precise positioning and improving the overall level of automation.

[0061] Furthermore, the detection device 40 also includes a humidity sensor 402, which is installed inside the seedling tray 20 and near the bottom. The humidity sensor 402 is used to detect the humidity of the tobacco seedlings in the seedling tray 20, and the control device 50 is used to control the second motor 3024 to operate according to the humidity level.

[0062] Specifically, the user can set a humidity threshold at the control device 50. When the humidity detected by the humidity sensor 402 is less than the threshold, the control device 50 controls the second motor 3024 to start, so that the seedling tray 20 is lowered and soaked in the nutrient solution to replenish water.

[0063] Furthermore, the seedling hardening shed 10 includes uprights 101 and crossbeams 102. The two ends of the crossbeams 102 are fixedly connected to the tops of the two uprights 101 respectively. Multiple crossbeams 102 and uprights 101 form the seedling hardening shed 10. Specifically, four uprights 101 and four crossbeams 102 can form a rectangular seedling hardening shed 10. The two ends of the slide rail 3011 are fixedly connected to the two crossbeams 102 respectively, so that the first motor 3013 can control the seedling tray 20 to perform water control and seedling hardening in a suitable position.

[0064] Furthermore, the control device 50 can be configured as a PLC controller with a built-in control program to achieve automated control.

[0065] In summary, this utility model provides a lifting-type seedling tray water control and seedling hardening device. By controlling the seedling tray 20 to leave or be immersed in the nutrient solution, it can solve the problem of operation time when draining and replenishing the nutrient solution using traditional techniques. At the same time, it solves the problem of slow water loss due to blockage of the bottom drain outlet 201 when the seedling tray 20 sinks to the bottom after draining the nutrient solution. This device can significantly improve the seedling hardening efficiency.

[0066] The above description is merely a preferred embodiment of this application. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A lifting-type seedling tray water control and hardening-off device, characterized in that, include: The seedling hardening shed has a nutrient solution installed at the bottom; A seedling tray for raising and cultivating flue-cured tobacco seedlings, the seedling tray being placed inside the seedling hardening shed and capable of being immersed in nutrient solution; A mobile device, one end of which is slidably mounted on the top of the seedling shed, and the other end of which is fixedly connected to the seedling tray, is used to control the seedling tray to move up and down. A detection device is installed inside the seedling shed. The detection device is used to detect the lifting data of the seedling tray and the water control data of the seedling tray. A control device is communicatively connected to the detection device and the moving device. The control device is used to control the movement of the moving device according to the lifting data and water control data, so as to make the seedling tray move up and down.

2. The lifting-type seedling tray water control and hardening-off device according to claim 1, characterized in that, The moving device includes a sliding component and a lifting component; The sliding assembly includes a slide rail, a slider, and a first motor. The two ends of the slide rail are fixedly connected to the seedling shed. The slider is slidably connected to the slide rail. The first motor is mounted on the slider. The slider is fixedly connected to the lifting assembly. The first motor is used to control the slider to reciprocate along the slide rail. The lifting component is fixedly connected to the seedling tray, and the lifting component is used to control the raising and lowering of the seedling tray.

3. The lifting-type seedling tray water control and hardening-off device according to claim 2, characterized in that, The lifting assembly includes a first mounting frame, a pulley, a hanging rope, and a second motor; The first mounting bracket is fixed to the bottom of the slider, and the second motor and the rope wheel are respectively disposed on both sides of the first mounting bracket. The rope wheel is rotatably connected to the first mounting bracket and is drivenly connected to the second motor. The second motor is used to control the rotation of the rope wheel. The hanging rope is wound around the rope wheel, and one end of the hanging rope is fixedly connected to the seedling tray. The second motor is used to control the rotation of the rope wheel to control the extension length of the hanging rope, so as to control the raising and lowering of the seedling tray.

4. The lifting-type seedling tray water control and hardening-off device according to claim 3, characterized in that, The detection device includes a tension sensor, which is mounted on the hanging rope and is used to detect the tension of the hanging rope in lifting the seedling tray. The control device is communicatively connected to the second motor, and the control device is used to control the operation of the second motor according to the magnitude of the tension.

5. The lifting seedling tray water control and hardening-off device according to claim 4, characterized in that, The detection device also includes a humidity sensor, which is installed inside the seedling tray and is used to detect the humidity of the flue-cured tobacco seedlings inside the seedling tray. The control device is used to control the operation of the second motor according to the humidity level.

6. The lifting seedling tray water control and hardening-off device according to claim 2, characterized in that, The slider is slidably connected to the slide rail via a pulley. The slider has a first side plate and a second side plate, and the first side plate and the second side plate are perpendicularly connected. The pulley is mounted on the slide rail, and the center of the pulley is rotatably connected to the first side plate. The first motor is connected to the pulley via a transmission. The lifting assembly is fixedly connected to the bottom of the second side plate.

7. The lifting seedling tray water control and hardening-off device according to claim 2, characterized in that, The seedling hardening shed includes uprights and crossbeams. The two ends of the crossbeams are fixedly connected to the tops of the two uprights, and multiple crossbeams and uprights form the seedling hardening shed. The two ends of the slide rail are respectively fixedly connected to the two crossbeams.

8. The lifting-type seedling tray water control and hardening-off device according to claim 1, characterized in that, The maximum height that the mobile device controls to lift the seedling tray is 5cm above the surface of the nutrient solution.

9. The lifting seedling tray water control and hardening-off device according to claim 1, characterized in that, The minimum height at which the moving device controls the seedling tray to descend is 2 cm below the surface of the nutrient solution.

10. The lifting-type seedling tray water control and hardening-off device according to claim 1, characterized in that, The bottom of the seedling tray is equipped with a drainage outlet.

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