Low-temperature seedling hardening device for cowpea cultivation

Abstract

The invention discloses a low-temperature seedling hardening device for cowpea cultivation, and relates to the technical field of low-temperature seedling hardening. A plurality of placing frames are uniformly distributed in the cabinet body, the surfaces of the placing frames are slidably clamped with the inner side surface of the cabinet body, bearing assemblies are fixedly connected in the placing frames, a cooling assembly is fixedly connected with the cabinet body, a water collecting assembly is communicated with an inner cavity of the cabinet body, and one side, far away from the cabinet body, of the water collecting assembly is communicated with the cooling assembly; the cooling assembly blows out low-temperature and humid air to simulate the low-temperature environment after transplanting, the seedlings adapt to the low-temperature environment, the cold resistance of the seedlings is improved, the seedlings can better adapt to the external low-temperature condition after transplanting, the cooling assembly can blow out humid air, the humid air is condensed on the surfaces of leaves of the seedlings after making contact with the seedlings, and the morning dew environment is simulated. A more simulated external environment is obtained, a proper amount of water can be supplemented for the seedlings, and the low-temperature adaptation effect can be further enhanced through water vapor evaporation and heat absorption.

Description

Technical Field

[0001] The present invention relates to the technical field of low-temperature seedling hardening, and particularly relates to a low-temperature seedling hardening device for cowpea cultivation. Background Art

[0002] Low-temperature seedling hardening in cowpea cultivation is a seedling raising technology that artificially regulates the environmental temperature to allow cowpea seedlings to experience a period of low-temperature adaptation before transplantation. This technology is usually carried out 7 to 10 days before planting. The temperature of the seedbed is gradually reduced to 10 to 15 degrees. By low-temperature stimulation, the stability of the seedling cell membrane is enhanced, the root development and the expression of stress-resistant genes are promoted, so that the seedlings can adapt to the low-temperature environment in the open field or greenhouse faster after transplantation, reduce the slow seedling time, and reduce the risk of freezing injury. At the same time, it can also inhibit the excessive growth of seedlings, make the plants short and strong, and the leaves thick and green, laying a foundation for high and stable yields in the later stage. This process needs to be combined with management measures such as water control and ventilation to avoid diseases caused by low temperature and high humidity, and the intensity of seedling hardening should be flexibly adjusted according to the characteristics of cowpea varieties and local climate conditions to ensure that the seedlings form a good stress-resistant physiological mechanism under low-temperature stress; Existing low-temperature seedling hardening devices usually cannot truly simulate the outdoor environment, resulting in a reduced survival rate of transplanted cowpea seedlings. Therefore, we propose a low-temperature seedling hardening device for cowpea cultivation. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a low-temperature seedling hardening device for cowpea cultivation, including: A bottom plate, on the top of which a cabinet is fixedly connected, and the inner side surface of the cabinet is rotatably connected with a cabinet door through a rotating rod; A seedling hardening mechanism, which is provided with two parts, and the two parts of the seedling hardening mechanism are respectively fixedly connected to the inner and outer sides of the cabinet; Among them, the seedling hardening mechanism includes: A placement rack, which is arranged inside the cabinet, and a plurality of the placement racks are evenly distributed inside the cabinet, and the surface of the placement rack is slidably clamped with the inner side surface of the cabinet; A supporting component, which is fixedly connected inside the placement rack, and a plurality of the supporting components are provided, and the plurality of supporting components are evenly distributed on the inner wall of the placement rack; A temperature reduction component, which is fixedly connected to the cabinet; A water collection component, which is fixedly connected to the side of the bottom plate away from the cabinet, and the water collection component is communicated with the inner cavity of the cabinet, and the side of the water collection component away from the cabinet is communicated with the temperature reduction component; Open the cabinet door, take out the placement rack, and at the same time, the supporting component is also taken out. Then place the bowl seedlings inside the supporting component, and fill several supporting components in sequence. Then insert the placement rack back. Then take out another placement rack and repeat the above steps to fill all the supporting components, thus realizing the batch low-temperature hardening of cowpea bowl seedlings. Start the cooling component, and the cooling component blows out low-temperature and humid air. The low-temperature air simulates the low-temperature environment after transplanting. Then, by gradually reducing the environmental temperature, the seedlings can adapt to the low-temperature environment, improve the cold resistance of the seedlings, and enable them to better adapt to the external low-temperature conditions after transplanting. Moreover, the cooling component can blow out humid air. After the humid air contacts the seedlings, it condenses on the surface of their leaves, simulating the early morning dew environment, obtaining a more realistic external environment. It can not only supplement appropriate moisture for the seedlings but also further strengthen the low-temperature adaptation effect through the heat absorption of water vapor evaporation. The excess condensed water droplets gradually drip along the stacked placement racks and finally enter the water collection component at the bottom of the cabinet, and then enter the cooling component, where it is reused by the cooling component. While discharging the excess water, it realizes the recycling of water.

[0004] Furthermore, the cooling component includes a cooling pipe. The cooling pipe is arranged in a serpentine shape and is arranged around several placement racks. The cooling pipe is embedded inside the cabinet, and the outer side surface of the cooling pipe is fixedly connected to the inner side surface of the cabinet. One end of the cooling pipe far from the bottom plate extends outside the cabinet, and the end of the cooling pipe located outside the cabinet is on the side of the cabinet close to the cabinet door. Cooling holes are formed on the surface of the cooling pipe, and the cooling holes are arranged directly above the placement racks. The cooling pipe communicates with the inner cavity of the cabinet through the cooling holes. A connecting pipe is fixedly connected to one end of the cooling pipe located inside the cabinet. One end of the connecting pipe far from the cooling pipe is fixedly connected to a cold air component. The side of the cold air component far from the connecting pipe penetrates through the bottom plate and extends into the water collection component, and the outer side surface of the cold air component is fixedly connected to the inner side surface of the bottom plate. Start the cold air component. The cold air component pumps the clear water inside the water collection component and pumps the external air into the cold air component. Finally, the cold air component blows out humid cold air. Then the humid cold air enters the connecting pipe, then enters the cooling pipe, and finally enters the cabinet through the cooling holes to cool the cabinet and provide a low-temperature environment for the cowpea bowl seedlings. The serpentine cooling pipe arranged around several placement racks can evenly cool the surroundings of several placement racks, and the serpentine distribution of the cooling pipe can provide a longer flow path for the cold air, achieving a better cooling effect.

[0005] Furthermore, the cold air component includes a pump body. The pump body is fixedly connected to one end of the connecting pipe away from the cooling pipe. The pump body is fixedly connected to one side of the cabinet away from the bottom plate. One end of the pump body away from the connecting pipe is fixedly connected to a cold air pipe. One end of the cold air pipe away from the pump body is fixedly connected to a cold air blower. The cold air blower is fixedly connected to one side of the bottom plate close to the cabinet. One side of the cold air blower away from the cold air pipe is fixedly connected to a water inlet pipe. One end of the water inlet pipe away from the cold air blower penetrates through the bottom plate and extends into the water collection component. The outer side surface of the water inlet pipe is fixedly connected to the inner side surface of the bottom plate. When the cold air blower is started, clear water enters the water inlet pipe from the water collection component, then enters the cold air blower, and wets the wet curtain of the cold air blower. Under the negative pressure of the cold air blower, the outside air passes through the wet wet curtain at a high speed, and the water quickly evaporates and absorbs heat, greatly reducing the air temperature. The low-temperature air is transported to the pump body through the cold air pipe. The pump body pressurizes and evenly sends the cold air into the cabinet along the connecting pipe and the cooling pipe. After the wet cold air contacts the pot seedlings, water vapor quickly condenses into fine water droplets on the surface of the pot seedling leaves, simulating the effect of natural morning dew. The water droplets slide down to the placement rack under the action of gravity and finally re-enter the water collection component, forming a circulating system of water replenishment, evaporation, condensation, and recovery, which not only ensures the low-temperature and high-humidity environment required for seedling hardening but also avoids waste of water resources.

[0006] Furthermore, a protective cover is fixedly connected to one side of the cold air blower away from the bottom plate, and the protective cover is fixedly connected to the air inlet pipe of the cold air blower. A dust-proof plate is fixedly connected to one side of the protective cover away from the cold air blower. The outside air enters the cold air blower through the air inlet pipe of the cold air blower and then passes through the wet curtain of the cold air blower. The water quickly evaporates and absorbs heat, greatly reducing the air temperature.

[0007] Furthermore, a fan blade is rotatably connected to one side of the dust-proof plate close to the bottom plate through a rotating rod, and the fan blade is rotatably connected to the inner side surface of the protective cover. There are holes on the surfaces of the protective cover and the dust-proof plate. The air enters the cold air blower and then drives the fan blade to rotate. The fan blade drives the gas to flow, thereby using the intake air of the cold air blower to cool the outside of the cold air blower.

[0008] Furthermore, the water collection component includes a water tank. The inner side surface of the water tank is fixedly connected to the bottom plate, and the water tank is arranged on one side of the bottom plate away from the cabinet. A partition board is fixedly connected to the bottom of the inner side surface of the water tank, and there is a gap between the side of the partition board away from the water tank and the bottom plate. The partition board divides the cavity surrounded by the water tank and the bottom plate to ensure that clear water enters the water inlet pipe through the top of the partition board while preventing impurities such as soil from entering the water inlet pipe.

[0009] Furthermore, a trough plate is fixedly connected to the top of the bottom plate, and the side of the trough plate away from the bottom plate is set to an arc shape, and the trough plate is arranged inside the cabinet, and the trough plate is fixedly connected to the inner side of the cabinet. A middle seam is opened on the side of the trough plate away from the bottom plate, and the middle seam passes through the bottom plate. Condensed water droplets and dirt fall to the top of the trough plate, and then enter the middle seam along the curved surface, and finally enter the inside of the water tank through the middle seam. The curved trough plate surface can ensure that water droplets and dirt enter the middle seam under the action of gravity.

[0010] Furthermore, a blowing pipe is fixedly connected to the surface of the cooling pipe, and there are several blowing pipes, and the blowing pipes are symmetrically arranged on both sides of the middle seam. The side of the blowing pipe away from the cooling pipe is fixedly connected to the curved surface of the trough plate. The cold air enters the blowing pipe through the cooling pipe and then blows the curved surface of the trough plate. The high-speed airflow will form a wall-attaching effect along the curved surface, so that the cold air evenly covers the entire surface of the trough plate, thereby better blowing water droplets, dirt, etc. into the middle seam, and preventing dirt, water droplets, etc. from adhering to the surface of the trough plate.

[0011] Furthermore, the supporting assembly includes a placement hole, the placement hole is opened on the surface of the placement rack, and the placement holes are evenly distributed on the surface of the placement rack. The inner side surface of the placement hole is fixedly connected with a rubber plate, and the rubber plate is bent toward the side close to the bottom plate, and the rubber plate is evenly distributed along the inner side surface of the placement hole. The side of the placement rack close to the bottom plate is fixedly connected with a rope body, and the rope body is evenly distributed along the circumference of the placement hole, and the sides of the rope bodies away from the placement rack are fixedly connected to each other, and the cymbal seedling is placed inside the placement hole. The seedlings in the pots squeeze the rope body, thereby completing the placement of the seedlings in the pots. The elastic rubber plate can limit the seedlings in pots of different diameters to avoid damage to the seedlings when moving the placement rack. The rope body can absorb clean water and then gather it at the junction of several rope bodies. Under the action of gravity, the water forms water droplets at the junction of several rope bodies, and then drips onto the seedlings in the pots below to achieve irrigation. The excess water continues to penetrate downward along the rope body, and finally flows into the sink through the trough plate at the bottom of the placement rack, avoiding the risk of root rot caused by accumulated water soaking the roots of the seedlings, and completing the recycling of water resources at the same time.

[0012] Furthermore, a cone is provided directly below the placement hole, the inner side of the cone is fixedly connected to the surface of the rope body, a dropper is fixedly connected to the side of the cone away from the rope body, and the dropper is controlled by a valve, the cone is a funnel-shaped structure that is wide at the top and narrow at the bottom, and its wide top is tightly connected to the rope body, which can quickly collect moisture transmitted from the rope body, and then efficiently drain the moisture to the dropper at the bottom of the cone, and cooperate with the adjustable valve to accurately control the dripping speed and dripping amount according to the growth stage and water demand of the seedlings in the pot, which not only avoids water waste, but also prevents the roots of the seedlings in the pot from lack of oxygen and rot due to excessive water.

[0013] Advantages of the present invention: 1. By providing a seedling hardening mechanism in the present invention, the cooling component blows out low-temperature and humid air. The low-temperature air simulates the low-temperature environment after transplantation. Subsequently, by gradually reducing the environmental temperature, the seedlings can adapt to the low-temperature environment, improving the cold resistance of the seedlings, enabling them to better adapt to the external low-temperature conditions after transplantation. Moreover, the cooling component can blow out humid air. After the humid air contacts the seedlings, it condenses on the leaf surface, simulating the early morning dew environment, obtaining a more realistic external environment. It can not only supplement appropriate moisture for the seedlings but also further strengthen the low-temperature adaptation effect through the endothermic evaporation of water vapor. The excess condensed water droplets gradually drip along the stacked placement racks and finally enter the water collection component at the bottom of the cabinet, and then enter the cooling component to be reused by the cooling component. While discharging the excess water, it realizes the recycling of water.

[0014] 2. By providing a cooling component in the present invention, the humid cold air enters the connecting pipe, then enters the cooling pipe, and finally enters the cabinet through the cooling holes to cool the cabinet, providing a low-temperature environment for the cowpea pot seedlings. The cooling pipe arranged in a snake shape and surrounding several placement racks can evenly cool the periphery of several placement racks, and the snake-shaped distribution of the cooling pipe can provide a longer flow path for the cold air, achieving a better cooling effect.

[0015] 3. By providing a cold air component in the present invention, after the moist cold air contacts the pot seedlings, the water vapor quickly condenses into fine water droplets on the leaf surface of the pot seedlings, simulating the natural early morning dew effect. The water droplets slide down to the placement rack under the action of gravity and finally re-enter the water collection component, forming a circulating system of water replenishment, evaporation, condensation, and recovery, which not only ensures the low-temperature and high-humidity environment required for seedling hardening but also avoids waste of water resources. The air enters the cold air blower, then drives the fan blades to rotate, and the fan blades drive the gas flow, thereby using the intake air of the cold air blower to cool the outside of the cold air blower.

[0016] 4. By providing a water collection component in the present invention, on the surface of the arc-shaped trough plate, the water droplets and soil can be ensured to enter the middle seam under the action of gravity. The cold air enters the blowing pipe through the cooling pipe and then blows on the arc-shaped surface of the trough plate. The high-speed air flow will form an attached-wall effect of flowing along the arc-shaped surface, enabling the cold air to evenly cover the entire surface of the trough plate, so as to better blow the water droplets, soil, etc. into the middle seam and prevent the soil, water droplets, etc. from adhering to the surface of the trough plate.

[0017] 5. By providing a supporting component in the present invention, the elastic rubber plate can limit the pot seedlings with different diameters, avoiding damage to the pot seedlings when moving the placement rack. The rope body can absorb clear water, and then the water converges at the joint of several rope bodies. Under the action of gravity, water droplets are formed at the joint of several rope bodies, and then drip onto the pot seedlings below to achieve irrigation. The excess water continues to penetrate downward along the rope body and finally flows into the water tank through the trough plate at the bottom of the placement rack, avoiding the risk of waterlogging soaking the roots of the pot seedlings and causing root rot, and at the same time completing the recycling of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a low-temperature seedling hardening device for cowpea cultivation according to the present invention; [[ID=*]] Figure 2 is an internal schematic diagram of a low-temperature seedling hardening device for cowpea cultivation according to the present invention; Figure 3 is a schematic structural diagram of a seedling hardening mechanism according to the present invention; Figure 4 is a schematic sectional structure diagram of a cabinet according to the present invention; Figure 5 is a schematic structural diagram of a cooling pipe according to the present invention; Figure 6 is a schematic structural diagram of a cooling component according to the present invention; Figure 7 is a schematic sectional structure diagram of a protective cover according to the present invention; Figure 8 is a schematic structural diagram of a trough plate according to the present invention; Figure 9 is a schematic structural diagram of a supporting component according to the present invention.

[0019] In the figure: 1, bottom plate; 2, cabinet; 3, cabinet door; 4, seedling hardening mechanism; 41, placement rack; 42, supporting component; 421, placement hole; 422, rubber plate; 423, rope body; 424, cone; 425, dropper; 43, cooling component; 431, cooling pipe; 432, cooling hole; 433, connecting pipe; 4341, pump body; 4342, cold air pipe; 4343, cold air blower; 4344, water inlet pipe; 4345, protective cover; 4346, dust-proof plate; 4347, fan blade; 434, cold air component; 44, water collection component; 441, water tank; 442, partition; 443, trough plate; 444, middle seam; 445, air blowing pipe. DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0021] Example 1, please refer to Figures 1 - 7 , the present invention is a low-temperature hardening device for cowpea cultivation, including: Bottom plate 1, a cabinet body 2 is fixedly connected to the top of the bottom plate 1, and a cabinet door 3 is rotatably connected to the inner side surface of the cabinet body 2 through a rotating rod; Hardening mechanism 4, the hardening mechanism 4 has two parts, and the two parts of the hardening mechanism 4 are respectively fixedly connected to the inner and outer sides of the cabinet body 2; Among them, the hardening mechanism 4 includes: Placement rack 41, the placement rack 41 is arranged inside the cabinet body 2, and a plurality of placement racks 41 are evenly distributed inside the cabinet body 2, and the surface of the placement rack 41 is slidably clamped with the inner side surface of the cabinet body 2; Support component 42, the support component 42 is fixedly connected inside the placement rack 41, there are a plurality of support components 42, and the plurality of support components 42 are evenly distributed on the inner wall of the placement rack 41; Cooling component 43, the cooling component 43 is fixedly connected to the cabinet body 2; Water collection component 44, the water collection component 44 is fixedly connected to the side of the bottom plate 1 away from the cabinet body 2, and the water collection component 44 is communicated with the inner cavity of the cabinet body 2, and the side of the water collection component 44 away from the cabinet body 2 is communicated with the cooling component 43; Open the cabinet door 3, take out the placement rack 41, and at the same time, the supporting component 42 is also taken out. Then place the bowl seedlings inside the supporting component 42 and fill several supporting components 42 in sequence. Then insert the placement rack 41 back. Then take out another placement rack 41 and repeat the above steps to fill all the supporting components 42, thus realizing the batch low-temperature hardening of cowpea bowl seedlings. Start the cooling component 43. The cooling component 43 blows out low-temperature and humid air. The low-temperature air simulates the low-temperature environment after transplantation. Then, by gradually reducing the environmental temperature, the seedlings can adapt to the low-temperature environment, improving the cold resistance of the seedlings so that they can better adapt to the external low-temperature conditions after transplantation. Moreover, the cooling component 43 can blow out humid air. After the humid air contacts the seedlings, it condenses on the surface of their leaves, simulating the early morning dew environment, obtaining a more realistic external environment. It can not only supplement appropriate moisture for the seedlings but also further strengthen the low-temperature adaptation effect by the heat absorption of water vapor evaporation. The excess condensed water droplets gradually drip along the stacked placement racks 41 and finally enter the water collection component 44 at the bottom of the cabinet body 2, and then enter the cooling component 43 and are reused by the cooling component 43, realizing the recycling of water while discharging the excess water.

[0022] The cooling component 43 includes a cooling pipe 431. The cooling pipe 431 is arranged in a snake shape and is arranged around several placement racks 41. The cooling pipe 431 is embedded in the cabinet body 2, and the outer side surface of the cooling pipe 431 is fixedly connected to the inner side surface of the cabinet body 2. One end of the cooling pipe 431 far from the bottom plate 1 extends outside the cabinet body 2, and one end of the cooling pipe 431 located outside the cabinet body 2 is on the side of the cabinet body 2 close to the cabinet door 3. Cooling holes 432 are formed on the surface of the cooling pipe 431, and the cooling holes 432 are arranged directly above the placement racks 41, and the cooling pipe 431 is communicated with the inner cavity of the cabinet body 2 through the cooling holes 432. A connecting pipe 433 is fixedly connected to one end of the cooling pipe 431 located in the cabinet body 2. One end of the connecting pipe 433 far from the cooling pipe 431 is fixedly connected to a cold air component 434. One side of the cold air component 434 far from the connecting pipe 433 penetrates through the bottom plate 1 and extends into the water collection component 44, and the outer side surface of the cold air component 434 is fixedly connected to the inner side surface of the bottom plate 1. Start the cold air component 434. The cold air component 434 pumps the clear water inside the water collection component 44 and pumps the external air into the cold air component 434. Finally, the cold air component 434 blows out humid cold air. Then the humid cold air enters the connecting pipe 433, then enters the cooling pipe 431, and finally enters the cabinet body 2 through the cooling holes 432 to cool the cabinet body 2 and provide a low-temperature environment for the cowpea bowl seedlings. The cooling pipe 431 arranged in a snake shape and around several placement racks 41 can evenly cool the surroundings of several placement racks 41, and the cooling pipe 431 distributed in a snake shape can provide a longer flow path for the cold air, achieving a better cooling effect.

[0023] The cold air component 434 includes a pump body 4341. The pump body 4341 is fixedly connected to one end of the connecting pipe 433 away from the cooling pipe 431. The pump body 4341 is fixedly connected to one side of the cabinet body 2 away from the bottom plate 1. One end of the pump body 4341 away from the connecting pipe 433 is fixedly connected with a cold air pipe 4342. One end of the cold air pipe 4342 away from the pump body 4341 is fixedly connected with a cold air blower 4343. The cold air blower 4343 is fixedly connected to one side of the bottom plate 1 close to the cabinet body 2. One side of the cold air blower 4343 away from the cold air pipe 4342 is fixedly connected with a water inlet pipe 4344. One end of the water inlet pipe 4344 away from the cold air blower 4343 penetrates through the bottom plate 1 and extends into the water collection component 44. The outer side surface of the water inlet pipe 4344 is fixedly connected with the inner side surface of the bottom plate 1. When the cold air blower 4343 is started, clear water enters the water inlet pipe 4344 from the water collection component 44, then enters the cold air blower 4343, wets the wet curtain of the cold air blower 4343. Under the negative pressure of the cold air blower 4343, the outside air passes through the wet wet curtain at a high speed, and the water quickly evaporates and absorbs heat, greatly reducing the air temperature. The low-temperature air is transported to the pump body 4341 through the cold air pipe 4342. The pump body 4341 evenly sends the cold air into the cabinet body 2 along the connecting pipe 433 and the cooling pipe 431 through pressurization. After the wet cold air contacts the pot seedlings, the water vapor quickly condenses into fine water droplets on the surface of the pot seedling leaves, simulating the effect of natural morning dew. The water droplets slide down to the placement rack 41 under the action of gravity and finally re-enter the water collection component 44, forming a circulating system of water replenishment, evaporation, condensation and recovery, which not only ensures the low-temperature and high-humidity environment required for seedling hardening, but also avoids waste of water resources.

[0024] One side of the cold air blower 4343 away from the bottom plate 1 is fixedly connected with a protective cover 4345, and the protective cover 4345 is fixedly connected with the air inlet pipe of the cold air blower 4343. One side of the protective cover 4345 away from the cold air blower 4343 is fixedly connected with a dust-proof plate 4346. The outside air enters the cold air blower 4343 through the air inlet pipe of the cold air blower 4343, and then passes through the wet curtain of the cold air blower 4343. The water quickly evaporates and absorbs heat, greatly reducing the air temperature.

[0025] One side of the dust-proof plate 4346 close to the bottom plate 1 is rotatably connected with a fan blade 4347 through a rotating rod, and the fan blade 4347 is rotatably connected with the inner side surface of the protective cover 4345. There are holes on the surfaces of the protective cover 4345 and the dust-proof plate 4346. The air enters the cold air blower 4343 and then drives the fan blade 4347 to rotate. The fan blade 4347 drives the gas to flow, so as to cool the outside of the cold air blower 4343 by using the intake air of the cold air blower 4343.

[0026] Example 2, please refer to Figures 1 - 9, the water collection assembly 44 includes a water tank 441. The inner side surface of the water tank 441 is fixedly connected to the bottom plate 1, and the water tank 441 is arranged on the side of the bottom plate 1 away from the cabinet body 2. A partition plate 442 is fixedly connected to the bottom of the inner side surface of the water tank 441, and there is a gap between the side of the partition plate 442 away from the water tank 441 and the bottom plate 1. The partition plate 442 divides the cavity surrounded by the water tank 441 and the bottom plate 1, ensuring that clear water enters the water inlet pipe 4344 through the top of the partition plate 442 while preventing impurities such as soil from entering the water inlet pipe 4344.

[0027] A groove plate 443 is fixedly connected to the top of the bottom plate 1. The side of the groove plate 443 away from the bottom plate 1 is arc-shaped, and the groove plate 443 is arranged inside the cabinet body 2 and fixedly connected to the inner side surface of the cabinet body 2. A middle slit 444 is opened on the side of the groove plate 443 away from the bottom plate 1, and the middle slit 444 penetrates the bottom plate 1. Condensed water droplets and soil fall onto the top of the groove plate 443, and then enter the middle slit 444 along the arc-shaped surface. Finally, they enter the inside of the water tank 441 through the middle slit 444. The arc-shaped surface of the groove plate 443 can ensure that water droplets and soil enter the middle slit 444 under the action of gravity.

[0028] A blowing pipe 445 is fixedly connected to the surface of the cooling pipe 431. There are several blowing pipes 445, and several blowing pipes 445 are symmetrically arranged on both sides of the middle slit 444. The side of the blowing pipe 445 away from the cooling pipe 431 is fixedly connected to the arc-shaped surface of the groove plate 443. Cold air enters the blowing pipe 445 through the cooling pipe 431, and then blows the arc-shaped surface of the groove plate 443. The high-speed air flow will form an attached wall effect of wall-attached flow along the arc-shaped surface, so that the cold air evenly covers the entire surface of the groove plate 443, thereby better blowing water droplets, soil, etc. into the middle slit 444 and preventing soil, water droplets, etc. from adhering to the surface of the groove plate 443.

[0029] The supporting component 42 includes a placement hole 421. The placement hole 421 is opened on the surface of the placement rack 41, and a number of placement holes 421 are evenly distributed on the surface of the placement rack 41. A rubber plate 422 is fixedly connected to the inner side surface of the placement hole 421, and the rubber plate 422 is bent towards the side close to the bottom plate 1. The rubber plates 422 are evenly distributed along the inner side surface of the placement hole 421. One side of the placement rack 41 close to the bottom plate 1 is fixedly connected with a rope body 423, and a number of rope bodies 423 are evenly distributed along the circumferential direction of the placement hole 421. One sides of the number of rope bodies 423 away from the placement rack 41 are fixedly connected to each other. Place the pot seedlings inside the placement hole 421, and the pot seedlings squeeze the rope body 423, thus completing the placement of the pot seedlings. The elastic rubber plate 422 can limit the pot seedlings with different diameters, avoiding damage to the pot seedlings when moving the placement rack 41. The rope body 423 can absorb clear water, and then converge at the joint of the number of rope bodies 423. Under the action of gravity, water forms water droplets at the joint of the number of rope bodies 423, and then drips on the lower pot seedlings to achieve irrigation. The excess water continues to penetrate downward along the rope body 423, and finally flows into the water tank 441 through the groove plate 443 at the bottom of the placement rack 41, avoiding the risk of waterlogging soaking the roots of the pot seedlings and causing root rot, and at the same time completing the recycling and reuse of water resources.

[0030] A conical cylinder 424 is arranged directly below the placement hole 421. The inner side surface of the conical cylinder 424 is fixedly connected to the surface of the rope body 423. One side of the conical cylinder 424 away from the rope body 423 is fixedly connected to a drip tube 425, and the drip tube 425 is controlled by a valve. The conical cylinder 424 has a funnel-shaped structure with a wider top and a narrower bottom. Its wide top is closely connected to the rope body 423, which can quickly collect the water transmitted by the rope body 423. After that, the conical cylinder 424 efficiently diverts the water to the drip tube 425 at the bottom. With the adjustable valve, according to the growth stage and water demand of the pot seedlings, the dripping speed and the amount of dripping water can be accurately controlled, which not only avoids water waste, but also prevents the roots of the pot seedlings from lacking oxygen and rotting due to excessive water volume.

[0031] During use, open the cabinet door 3, take out the placement rack 41, and at the same time, the supporting component 42 is also taken out. Then, place the bowl seedlings inside the placement holes 421. The bowl seedlings squeeze the rope body 423, thus completing the placement of the bowl seedlings. Fill several supporting components 42 in sequence, then insert the placement rack 41 back. Then, take out another placement rack 41 and repeat the above steps to fill all the supporting components 42. Start the cold air blower 4343. Clear water enters the water inlet pipe 4344 from the water collection component 44, and then enters the cold air blower 4343, wetting the wet curtain of the cold air blower 4343. The outside air enters the cold air blower 4343 through the air inlet pipe of the cold air blower 4343, passes through the wet wet curtain at high speed, and the water quickly evaporates and absorbs heat, significantly reducing the air temperature. The air enters the cold air blower 4343 and then drives the fan blade 4347 to rotate. The fan blade 4347 drives the gas flow to cool the outside of the cold air blower 4343. At the same time, the low-temperature air is transported to the pump body 4341 through the cold air pipe 4342. The pump body 4341 pressurizes and evenly sends the cold air into the cabinet body 2 along the connecting pipe 433, the cooling pipe 431, and the cooling holes 432 to cool the cabinet body 2 and provide a low-temperature environment for the cowpea bowl seedlings. After the wet cold air contacts the bowl seedlings, the water vapor quickly condenses into fine water droplets on the surface of the bowl seedling leaves, simulating the effect of natural morning dew. The rope body 423 can absorb the clear water, and then converges at the joints of several rope bodies 423. Under the action of gravity, water forms water droplets at the joints of several rope bodies 423, and then drips onto the lower bowl seedlings to achieve irrigation. The excess water continues to penetrate downward along the rope body 423 and finally flows into the water tank 441 through the trough plate 443 at the bottom of the placement rack 41. The condensed water droplets and soil fall onto the top of the trough plate 443, and then enter the middle seam 444 along the arc surface and finally enter the inside of the water tank 441 through the middle seam 444. The cold air enters the air blowing pipe 445 through the cooling pipe 431 and then blows the arc surface of the trough plate 443. The high-speed air flow will form an attached wall effect of flowing along the arc surface, enabling the cold air to evenly cover the entire surface of the trough plate 443 and blowing the water droplets, soil, etc. into the middle seam 444, forming a circulating system of water supply, evaporation, condensation, and recovery.

[0032] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. A low-temperature seedling hardening device for cowpea cultivation, characterized in that, Including: A bottom plate (1), a cabinet body (2) is fixedly connected to the top of the bottom plate (1), and a cabinet door (3) is rotatably connected to the inner side surface of the cabinet body (2) through a rotating rod; A seedling hardening mechanism (4), the seedling hardening mechanism (4) is provided with two parts, and the two parts of the seedling hardening mechanism (4) are respectively fixedly connected to the inner and outer sides of the cabinet body (2); Among them, the seedling hardening mechanism (4) includes: A placement rack (41), the placement rack (41) is arranged inside the cabinet body (2), and a plurality of the placement racks (41) are evenly distributed inside the cabinet body (2), and the surface of the placement rack (41) is slidably clamped with the inner side surface of the cabinet body (2); A supporting component (42), the supporting component (42) is fixedly connected inside the placement rack (41), the supporting component (42) is provided with a plurality of, and the plurality of supporting components (42) are evenly distributed on the inner wall of the placement rack (41); A cooling component (43), the cooling component (43) is fixedly connected to the cabinet body (2); A water collecting component (44), the water collecting component (44) is fixedly connected to the side of the bottom plate (1) away from the cabinet body (2), and the water collecting component (44) is communicated with the inner cavity of the cabinet body (2), and the side of the water collecting component (44) away from the cabinet body (2) is communicated with the cooling component (43).

2. The low-temperature hardening device for cowpea cultivation according to claim 1, characterized in that: The cooling component (43) includes a cooling pipe (431), the cooling pipe (431) is arranged in a snake shape, and the cooling pipe (431) is arranged around a plurality of placement racks (41), the cooling pipe (431) is embedded inside the cabinet body (2), and the outer side surface of the cooling pipe (431) is fixedly connected to the inner side surface of the cabinet body (2), one end of the cooling pipe (431) away from the bottom plate (1) extends to the outside of the cabinet body (2), and one end of the cooling pipe (431) located outside the cabinet body (2) is located on the side of the cabinet body (2) close to the cabinet door (3), cooling holes (432) are formed in the surface of the cooling pipe (431), and the cooling holes (432) are arranged directly above the placement rack (41), and the cooling pipe (431) is communicated with the inner cavity of the cabinet body (2) through the cooling holes (432), a connecting pipe (433) is fixedly connected to one end of the cooling pipe (431) located inside the cabinet body (2), a cold air component (434) is fixedly connected to the end of the connecting pipe (433) away from the cooling pipe (431), one side of the cold air component (434) away from the connecting pipe (433) penetrates through the bottom plate (1) and extends into the water collecting component (44), and the outer side surface of the cold air component (434) is fixedly connected to the inner side surface of the bottom plate (1).

3. The low-temperature hardening device for cowpea cultivation according to claim 2, characterized in that: The cold air component (434) includes a pump body (4341). The pump body (4341) is fixedly connected to one end of a connecting pipe (433) away from a cooling pipe (431). The pump body (4341) is fixedly connected to one side of a cabinet body (2) away from a bottom plate (1). One end of the pump body (4341) away from the connecting pipe (433) is fixedly connected to a cold air pipe (4342). One end of the cold air pipe (4342) away from the pump body (4341) is fixedly connected to a cold air blower (4343). The cold air blower (4343) is fixedly connected to one side of the bottom plate (1) close to the cabinet body (2). One side of the cold air blower (4343) away from the cold air pipe (4342) is fixedly connected to a water inlet pipe (4344). One end of the water inlet pipe (4344) away from the cold air blower (4343) penetrates through the bottom plate (1) and extends into a water collection component (44). The outer side surface of the water inlet pipe (4344) is fixedly connected to the inner side surface of the bottom plate (1).

4. The low-temperature seedling hardening device for cowpea cultivation according to claim 3, characterized in that: One side of the cold air blower (4343) away from the bottom plate (1) is fixedly connected to a protective cover (4345), and the protective cover (4345) is fixedly connected to the air inlet pipe of the cold air blower (4343). One side of the protective cover (4345) away from the cold air blower (4343) is fixedly connected to a dust-proof plate (4346).

5. The low-temperature hardening device for cowpea cultivation according to claim 4, characterized in that: One side of the dust-proof plate (4346) close to the bottom plate (1) is rotatably connected to a fan blade (4347) through a rotating rod, and the fan blade (4347) is rotatably connected to the inner side surface of the protective cover (4345). The surfaces of the protective cover (4345) and the dust-proof plate (4346) have holes.

6. The low-temperature hardening seedling device for cowpea cultivation according to claim 5, characterized in that: The water collection component (44) includes a water tank (441). The inner side surface of the water tank (441) is fixedly connected to the bottom plate (1), and the water tank (441) is arranged on one side of the bottom plate (1) away from the cabinet body (2). The bottom of the inner side surface of the water tank (441) is fixedly connected to a partition plate (442), and there is a gap between one side of the partition plate (442) away from the water tank (441) and the bottom plate (1).

7. The low-temperature hardening device for cowpea cultivation according to claim 6, characterized in that: The top of the bottom plate (1) is fixedly connected to a groove plate (443). One side of the groove plate (443) away from the bottom plate (1) is arc-shaped, and the groove plate (443) is arranged inside the cabinet body (2). The groove plate (443) is fixedly connected to the inner side surface of the cabinet body (2). One side of the groove plate (443) away from the bottom plate (1) is provided with a middle slit (444), and the middle slit (444) penetrates through the bottom plate (1).

8. A low-temperature seedling hardening device for cowpea cultivation according to claim 7, characterized in that: The surface of the cooling pipe (431) is fixedly connected to a blowing air pipe (445). There are several blowing air pipes (445), and several blowing air pipes (445) are symmetrically arranged on both sides of the middle slit (444). One side of the blowing air pipe (445) away from the cooling pipe (431) is fixedly connected to the arc-shaped surface of the groove plate (443).

9. The low-temperature seedling hardening device for cowpea cultivation according to claim 8, wherein: The supporting component (42) includes a placement hole (421) which is opened on the surface of the placement rack (41), and a plurality of the placement holes (421) are evenly distributed on the surface of the placement rack (41). A rubber plate (422) is fixedly connected to the inner side surface of the placement hole (421), and the rubber plate (422) is bent towards the side close to the bottom plate (1). The rubber plates (422) are evenly distributed along the inner side surface of the placement hole (421). A rope body (423) is fixedly connected to the side of the placement rack (41) close to the bottom plate (1), and a plurality of the rope bodies (423) are evenly distributed along the circumferential direction of the placement hole (421), and one sides of the plurality of the rope bodies (423) far away from the placement rack (41) are fixedly connected to each other.

10. A low-temperature hardening device for cowpea cultivation according to claim 9, characterized in that: A conical cylinder (424) is arranged directly below the placement hole (421). The inner side surface of the conical cylinder (424) is fixedly connected to the surface of the rope body (423). A dropper (425) is fixedly connected to the side of the conical cylinder (424) far away from the rope body (423), and the dropper (425) is controlled by a valve.

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