A strawberry seedling cooling system

Abstract

The present application relates to the field of seedling cooling, and discloses a strawberry seedling cooling system, which comprises a greenhouse, a sunshade cloth arranged on the greenhouse and a seedbed arranged in the greenhouse, wherein the seedbed comprises a frame body, a culture water tank fixedly connected to the frame body, a floating frame arranged on the culture water tank and a seedling tray connected to the floating frame, the floating frame is provided with a connecting frame for embedding the seedling tray, the connecting frame is slidingly connected to the floating frame, and the connecting frame slides close to or away from the bottom of the culture water tank. The present application has the following advantages and effects: the seedling tray is arranged on the floating frame, the floating frame floats in the culture water tank through a floating air bag, so that the depth of the seedling tray extending into the water surface is relatively constant when the culture water tank is lowered and raised, thereby ensuring stable cooling effect on the strawberry seedlings; the spraying pipeline, the preparation barrel and the culture water tank are communicated, so that the cooling water circulates between the spraying pipeline, the preparation barrel and the culture water tank, thereby avoiding nutrient waste.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of seedling cooling, in particular to a strawberry seedling cooling system. BACKGROUND

[0002] The growth cycle of strawberries is short, fast-acting, and high-yielding, with bright fruit color, rich aroma, and high nutritional value, which is favored by consumers and producers. High quality and high yield are one of the main tasks and core goals of strawberry production. Rhizosphere temperature is one of the important influencing factors in plant hydroponics, which not only affects the growth of plant roots, but also plays an important role in the growth and development of plant aboveground. Studies have shown that the sensitivity of plant roots to temperature is higher than that of plant aboveground, and excessively high or low rhizosphere temperature will lead to root function disorder, affecting the absorption of water and mineral nutrients by roots.

[0003] Strawberries need to be grown during planting, and plastic film is used to build a greenhouse to promote the rapid growth of fruits and facilitate planting management. Currently, the agricultural greenhouse, especially the strawberry planting shed, is mostly cooled by fan leaves to reduce the temperature inside the shed. This will slow down the cooling process, and the efficiency of cooling the strawberry root is low. In hot weather, the cooling effect is not significant. The sensitivity of plant roots to temperature is higher than that of plant aboveground, and excessively high or low rhizosphere temperature will lead to root function disorder, affecting the absorption of water and mineral nutrients by roots.

[0004] The patent with the authorized announcement number CN218244786U discloses a strawberry facility seedling rhizosphere cooling device, which comprises a shed body. A first water inlet is arranged above the shed body. A first conveying pipe is arranged on one side of the first water inlet. A connecting pipe is arranged at the other end of the first conveying pipe. A third conveying pipe is arranged below the connecting pipe. A water storage tank is arranged at the other end of the third conveying pipe. A second conveying pipe is arranged through the other side of the water storage tank. A plurality of spray heads are arranged at one end of the second conveying pipe. A fixing piece is fixedly connected to the second conveying pipe. The other end of the fixing piece is connected to the shed body. Rainwater can be collected in the water storage tank through the first water inlet, the first conveying pipe, the connecting pipe, and the third conveying pipe. The rainwater can be filtered through the filter screen. The spray cooling can be realized through the third conveying pipe, the spray heads, and the water pump.

[0005] The above-mentioned cooling device still has defects. The intermittent operation of the spray system cannot guarantee the relative constancy of the root temperature. At the same time, the spray cooling will cause the gradual loss of nutrients in the culture medium, which is not conducive to the growth of strawberries. SUMMARY

[0006] The purpose of the present application is to provide a strawberry seedling cooling system with the effect of stable cooling of the root of strawberry seedlings.

[0007] The technical problem of the present application is solved by the following technical scheme: a strawberry seedling cooling system, comprising a greenhouse, a sunshade cloth arranged on the greenhouse, and a seedbed arranged in the greenhouse, wherein the seedbed comprises a frame body, a culture water tank fixedly connected to the frame body, a floating frame arranged on the culture water tank, and a seedling tray connected to the floating frame, a connecting frame for embedding the seedling tray is arranged on the floating frame, the connecting frame is slidingly connected to the floating frame, and the connecting frame slidingly approaches or moves away from the bottom of the culture water tank.

[0008] By adopting the above technical scheme, the seedling tray is arranged on the floating frame, the floating frame is located above the culture water tank, and when the sunshade cloth arranged on the top of the greenhouse cannot meet the cooling demand, cooling water containing nutrient solution is injected into the culture water tank, so that the liquid level of the cooling water is higher than one-third of the bottom of the seedling tray, stable cooling of the strawberry seedlings is realized, and loss of nutrients of the strawberry seedlings is avoided.

[0009] The present application further provides that floating air bags are fixedly connected around the floating frame, a water inlet is arranged at the bottom of the air bag, and an air vent is arranged at the top of the air bag, and the floating air bags are connected to each other.

[0010] By adopting the above technical scheme, the air in the floating air bag is injected or released through the air vent, so that the air pressure in the floating air bag is adjusted, and the depth of the floating frame immersed in the liquid is adjusted.

[0011] The present application further provides that a connecting groove for embedding the connecting frame is arranged on the floating frame, push sliding blocks are slidingly connected at both ends of the connecting groove, a push inclined surface in contact with the connecting frame is arranged on the push sliding block, and the connecting frame slides away from the culture water tank when the push sliding blocks move towards each other.

[0012] By adopting the above technical scheme, the two push sliding blocks are slidingly moved towards each other or away from each other, the push sliding block pushes the connecting frame up and down through the push inclined surface, so that the depth of the seedling tray immersed below the water surface is adjusted, and as the cooling water in the culture water tank is consumed and supplemented, the floating frame also floats with the liquid surface, so that the depth of the seedling tray immersed below the water surface is relatively constant, and the stability of the root cooling effect is improved.

[0013] The present application further provides that a forward and reverse toothed rod is rotationally connected to the floating frame, and the two push sliding blocks are threadedly connected to both ends of the forward and reverse toothed rod.

[0014] By adopting the above technical scheme, the forward and reverse toothed rod is rotated to drive the two push sliding blocks to move towards each other or away from each other synchronously, so that the stability of the height adjustment of the connecting frame is improved.

[0015] A further feature of the present invention is that: a spray pipe is provided on the frame above the culture tank; a preparation tank is also provided inside the greenhouse; an inlet pipe and an outlet pipe are connected between the preparation tank and the culture tank; an inlet pump and an outlet pump are respectively connected to the inlet pipe and the outlet pipe; a water supply pipe is connected between the preparation tank and the spray pipe; and a water supply pump is connected to the water supply pipe.

[0016] By adopting the above technical solution, the spray pipe sprays water onto the seedling tray below to cool the seedling tray. The water flowing out from the bottom of the seedling tray falls into the culture tank. The cooling water in the culture tank circulates between the preparation tank and the culture tank through the inlet and outlet pumps, thereby ensuring a relatively constant cooling water level in the culture tank and avoiding nutrient loss. At the same time, nutrient solution can also be added to the preparation tank.

[0017] A further feature of the present invention is that a chiller is connected to the preparation tank.

[0018] By adopting the above technical solution, when the temperature of the cooling water in the culture tank and the preparation tank is too high, the cooling water in the preparation tank is cooled down by a chiller.

[0019] A further feature of the present invention is that a partition net is inserted into the preparation tank, and a return water chamber and a spray chamber are respectively set on both sides of the partition net. The inlet water pipe and the outlet water pipe are connected to the return water chamber, and the supply water pipe and the chiller are connected to the spray chamber.

[0020] By adopting the above technical solution, the preparation tank is divided into a return water chamber and a spray chamber by a partition net. The partition net filters the cooling water entering the spray chamber, preventing the spray pipes and chiller from getting clogged.

[0021] A further feature of the present invention is that: multiple guide columns are connected to the culture tank, the floating frame and the connecting frame are provided with guide holes for the guide columns to pass through, and a tension spring located between the floating frame and the connecting frame is sleeved on the guide column.

[0022] By adopting the above technical solution, the guide column guides the height adjustment of the connecting frame and positions the floating frame, thereby improving the stability of the floating frame installation.

[0023] The beneficial effects of this invention are:

[0024] 1. The seedling trays are placed on a floating frame, which floats on the culture tank via floating airbags. This ensures that the depth of the seedling trays submerged in the water remains relatively constant as the culture tank rises and falls, thus guaranteeing a stable cooling effect for the strawberry seedlings.

[0025] 2. By connecting the spray pipes, preparation tanks, and culture tanks, cooling water circulates between the spray pipes, preparation tanks, and culture tanks, thus avoiding the waste of nutrients;

[0026] 3. By setting a partition net in the preparation tank, the preparation tank is divided into a return water chamber connected to the culture tank and a spray pipe connected to the spray pipe and chiller. This filters impurities in the cooling water entering the preparation tank from the culture tank, thus preventing blockage of the spray pipe and chiller. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of this embodiment.

[0029] Figure 2 This is a cross-sectional structural diagram of the culture tank in this embodiment.

[0030] Figure 3 This is a schematic diagram showing the positional relationship between the floating airbag and the seedling tray on the floating frame in this embodiment.

[0031] Figure 4 This is a schematic diagram of the connection relationship of the slider in this embodiment.

[0032] In the diagram, 1. Seedbed; 2. Frame; 3. Culture water tank; 31. Inlet pipe; 32. Outlet pipe; 33. Inlet pump; 34. Outlet pump; 35. Guide column; 36. Guide hole; 37. Pull spring; 4. Floating frame; 41. Floating airbag; 42. Inlet; 43. Vent; 44. Push slider; 441. Pushing inclined plane; 442. Positioning groove; 45. Positive and negative threaded rod; 5. Seedling tray; 6. Connecting frame; 7. Spray pipe; 71. Water supply pipe; 72. Water supply pump; 8. Preparation tank; 81. Separating net; 82. Return water chamber; 83. Spray chamber; 9. Chiller. Detailed Implementation

[0033] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] Example: A strawberry seedling cooling system, such asFigure 1 , Figure 2 As shown, it includes a greenhouse, a shade cloth set on the greenhouse, and a seedbed set inside the greenhouse. The seedbed includes a frame, a culture water trough fixedly connected to the frame, a floating frame set on the culture water trough, and a seedling tray connected to the floating frame. The floating frame is provided with a connecting frame for the seedling tray to be embedded. The connecting frame is slidably connected to the floating frame and slides closer to or away from the bottom of the culture water trough. The frame is equipped with a spray pipe located above the cultivation tank. Inside the greenhouse, there is also a preparation tank. The preparation tank is connected to the cultivation tank by an inlet pipe and an outlet pipe, which are connected to an inlet pump and an outlet pump, respectively. A water supply pipe is connected to the spray pipe, and a water supply pump is connected to the water supply pipe. The water supply pump delivers the cooling water in the preparation tank to the spray pipe and sprays it out to cool the seedling trays located below the spray pipe. The cooling water seeps down from the seedling trays into the cultivation tank. The level of the cooling water in the cultivation tank is one-third higher than the bottom of the seedling trays. Excess cooling water in the cultivation tank flows back into the preparation tank.

[0035] like Figure 3 , Figure 4 As shown, floating airbags are fixedly connected around the floating frame. Each airbag has a water inlet at the bottom and a vent at the top, and the airbags are interconnected. The floating frame has a connecting groove for a connecting frame to be inserted into. Pushing sliders are slidably connected to both ends of the connecting groove. Each pushing slider has a pushing inclined surface that contacts the connecting frame. The two pushing sliders move towards each other, pushing the connecting frame away from the culture tank. Two positive and negative threaded rods are rotatably connected to the floating frame, and torque is transmitted between them via a synchronous belt. The two pushing sliders are threaded to both ends of the positive and negative threaded rods. Air is injected or released into the floating airbags through the vents, thereby adjusting the air pressure inside the airbags and thus the depth to which the floating frame extends into the liquid. Sliding the two pushing sliders causes them to move towards or away from each other. The pushing sliders, via the pushing inclined surfaces, push the connecting frame up and down, thereby adjusting the depth of the seedling tray below the water surface.

[0036] like Figure 1 As shown, a partition net is inserted inside the mixing tank, and a chiller is also connected to the mixing tank. The two sides of the partition net are respectively set as a return water chamber and a spray chamber. The inlet pipe and outlet pipe are connected to the return water chamber, and the supply pipe and chiller are connected to the spray chamber. The mixing tank is also connected to the chiller. The partition net divides the mixing tank into the return water chamber and the spray chamber. The partition net filters the cooling water entering the spray chamber to prevent the spray pipe and chiller from being blocked.

[0037] like Figure 4As shown, the culture tank is connected to multiple guide columns. The floating frame and the connecting frame are provided with guide holes for the guide columns to pass through. A pull spring is sleeved on the guide column and located between the floating frame and the connecting frame. The two push sliders are respectively provided with positioning grooves for the guide columns to pass through, and the pull spring is set in the positioning groove.

[0038] When using a strawberry seedling cooling system, if the temperature is too high, first use a shade cloth to shade and cool the seedlings. If shading is insufficient, turn on the inlet and outlet pumps to circulate cooling water between the culture tank and the preparation container, cooling the roots of the seedling trays. Turn on the supply pump to spray cooling water onto the seedling trays. The cooling water in the culture tank circulates between the spray pipes, preparation container, and culture tank through the inlet, outlet, and supply pumps, ensuring a relatively constant cooling water level in the culture tank and preventing nutrient loss. Nutrient solution can also be added to the preparation container. A partition net divides the preparation container into a return water chamber connected to the culture tank and a spray pipe connected to the spray pipes and chiller, filtering impurities from the cooling water entering the preparation container from the culture tank and preventing blockages in the spray pipes and chiller.

Claims

1. A strawberry seedling cooling system, comprising a greenhouse, a sunshade cloth arranged on the greenhouse, and a seedbed arranged in the greenhouse, characterized in that: The seedbed comprises a frame, a culture water tank fixedly connected to the frame, a floating frame arranged on the culture water tank, and a seedling tray connected to the floating frame, the floating frame is provided with a connecting frame for embedding the seedling tray, the connecting frame is slidingly connected to the floating frame, and the connecting frame slidingly approaches or moves away from the bottom of the culture water tank; the floating frame is fixedly connected with floating air bags around, the floating air bags are provided with a water inlet at the bottom of the air bag and a vent at the top of the air bag, and the floating air bags are connected with each other; the floating frame is provided with a connecting groove for embedding the connecting frame, the connecting groove is slidingly connected with a pushing slider at both ends, the pushing slider is provided with a pushing inclined surface in contact with the connecting frame, and the two pushing sliders move towards each other to push the connecting frame to slide away from the culture water tank; the floating frame is rotationally connected with a positive and negative toothed rod, and the two pushing sliders are respectively threadedly connected with both ends of the positive and negative toothed rod.

2. The strawberry seedling cooling system according to claim 1, characterized in that: The frame is provided with a spraying pipeline above the culture water tank, the greenhouse is further provided with a preparation barrel, the preparation barrel and the culture water tank are connected with a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are respectively connected with a water inlet pump and a water outlet pump, the preparation barrel and the spraying pipeline are connected with a water supply pipe, and the water supply pipe is connected with a water supply pump.

3. The strawberry seedling cooling system according to claim 2, characterized in that: The preparation barrel is further connected with a water chiller.

4. The strawberry seedling cooling system according to claim 3, characterized in that: The preparation barrel is further connected with a water chiller.

5. The strawberry seedling cooling system according to claim 4, characterized in that: The preparation barrel is further connected with a water chiller. The culture water tank is connected with a plurality of guide columns, the floating frame and the connecting frame are provided with guide holes for the guide columns to pass through, and the guide columns are provided with a pulling spring located between the floating frame and the connecting frame.

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