Plant protection temperature control device and method based on indoor rice seedling raising

Abstract

The invention relates to the technical field of rice seedling raising devices, and provides a plant protection temperature control device and method based on indoor rice seedling raising, the plant protection temperature control device comprises a plurality of transmission frames, a supporting and gathering mechanism is arranged at the center of the top of a chassis, and the positions of the plurality of transmission frames can be adjusted through the supporting and gathering mechanism. A water conveying temperature control assembly is arranged in the supporting and gathering mechanism in a penetrating mode, and a plurality of cultivation assemblies are distributed on the outer side of the water conveying temperature control assembly in the vertical direction. A bulldozing and water conveying mechanism is arranged on the upper side of each cultivation assembly and can convey water into the cultivation assemblies and push away soil located above the cultivation assemblies. A water and soil recycling assembly is arranged below the cultivation assembly located on the lowermost side and used for collecting soil water falling from the cultivation assemblies. According to the device, synchronous temperature control over soil and air can be achieved, the temperature adjusting efficiency of the soil is remarkably improved, cultivated rice seedlings can be conveniently taken out of the soil, and the situation that the rice seedlings are damaged due to too large pulling-out force is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of rice seedling raising devices, and in particular to a plant protection temperature control device and method for indoor rice seedling raising. Background Art

[0002] A search revealed an existing patent (publication number: CN114868644A) that discloses a rice seedling raising device comprising a housing with internal barriers that divide the interior of the housing into multiple hydroponic zones. This patent utilizes the barriers to separate the housing into multiple hydroponic zones for cultivating individual rice seedlings. Hydroponic fluid within these zones can flow between them, and the barriers separate the roots of the rice seedlings within each zone to prevent them from intertwining. The support shaft can adjust the height of the seedling raising device, allowing for adjustable positioning for sampling. The position of the seedling raising device can be adjusted based on the growth trend of the rice seedlings, providing them with ample growth space. The device allows for the removal of individual seedlings or multiple devices simultaneously, making it quick and convenient.

[0003] However, the soil moisture requirements for rice seedlings vary depending on the seedling raising method (water seedling raising, dry seedling raising, wet seedling raising, etc.): Traditional water-based seedling cultivation (gradually being phased out) involves maintaining a shallow water layer (1-2 cm) in the early stages of seedling cultivation, with seeds immersed in water or silty soil. This can easily lead to oxygen deficiency, seed rot, and weak root systems, and is now being replaced by wet seedling cultivation. For moist seedling cultivation, the soil condition is: from sowing to emergence: the soil is moist and silty (water content is saturated but not waterlogged), ensuring seed imbibition and germination. After emergence: keep the field surface moist (no visible water), add water when the soil surface is slightly dry to promote root growth. In case of low temperature: short-term shallow water irrigation can be used to protect the seedlings, and then timely drainage and ventilation are required. For dry seedling cultivation (a water-saving and efficient method), soil conditions should be loose, moist, and firm (60%-70% moisture content, forming a ball when held in the hand and falling apart when dropped). The seedbed should be high and well-drained to avoid waterlogging. Advantages: Developed root systems, strong resistance to stress, and suitable for machine transplanting.

[0004] Furthermore, during rice seedling cultivation, both soil temperature (root temperature) and air temperature must be considered, but soil temperature is more critical, especially during cooler seasons (such as early spring seedling cultivation). Regarding the central role of soil temperature, rice seeds require a stable soil temperature (ideally 25-30°C) for germination and root development. Low temperatures (<15°C) can lead to delayed germination, seed rot, or seedling diseases (such as damping-off). Seedling roots are sensitive to low temperatures, and insufficient soil temperature inhibits nutrient absorption, resulting in weak and infertile seedlings. Directly raising soil temperature is a highly effective method and can significantly improve seedling cultivation results. Air temperature plays a significant supporting role, influencing leaf photosynthesis and stem and leaf growth (optimal daytime temperatures are 25-30°C and nighttime temperatures are 15-20°C). Therefore, heating the soil while ignoring air temperature can result in slow stem and leaf growth, but this is a lower priority than soil temperature.

[0005] However, the existing rice seedling raising device cannot effectively control the temperature of the soil and air environment for rice seedling raising. When the rice seedlings are pulled out for transplanting after cultivation, the strong adhesion of the soil makes it easy for the rice seedlings to be broken and damaged during the pulling out process. It is also difficult for the roots to adhere to more soil and the roots are easily broken, which is not conducive to the survival of the rice seedlings. Summary of the Invention

[0006] The present invention proposes a plant protection temperature control device and method for indoor rice seedling cultivation, which solves the problems in the related art of not being able to well regulate the temperature of the soil and air environment for rice seedling cultivation and the low survival rate of rice seedlings when pulled out and transplanted.

[0007] The technical solution of the present invention is as follows: A plant protection and temperature control device for indoor rice seedling cultivation comprises: a cultivation box and a door body installed on one side of the cultivation box, a chassis fixedly installed at the bottom of the cultivation box, and a plurality of limit grooves arranged in a circular array on the top of the chassis; A plurality of transmission racks are distributed in a circular array on the upper side of the chassis, and the number of the transmission racks is the same as the number of the limiting slots and they correspond one to one; A support mechanism is provided at the top center of the chassis, through which the positions of the transmission frames can be adjusted; A water supply and temperature control component is provided inside the supporting mechanism, and multiple cultivation components are distributed vertically on the outside of the water supply and temperature control component. A soil pushing and water delivery mechanism is provided on the upper side of each cultivation assembly, which can deliver water to the cultivation assembly and push away the soil above the cultivation assembly; A water and soil recovery component is provided below the cultivation component located at the lowermost side, for collecting soil moisture falling from the cultivation component.

[0008] Preferably, the transmission frame includes a right-angle plate slidably mounted on the inner side of the limiting groove, ball bearings are distributed on the outer wall of the bottom of the right-angle plate, a vertical rod is fixedly connected to the upper side of the right-angle plate, a plurality of support rods are fixedly connected to the outer wall of the vertical rod, each of the support rod outer walls is hinged to a plurality of second connecting rods, and each of the vertical rod outer walls is hinged to a plurality of first connecting rods.

[0009] Preferably, the supporting mechanism includes a bottom column fixed to the top of the chassis, a straight cylinder is fixed to the top of the bottom column, a thread is provided on the lower outer wall of the straight cylinder, a lifting cylinder is provided on the sliding sleeve of the outer wall of the straight cylinder, a supporting cylinder is provided on the rotating sleeve of the lower outer wall of the lifting cylinder, and the lower inner wall of the supporting cylinder is threadedly connected to the straight cylinder.

[0010] Preferably, the water supply and temperature control component includes a right-angle water supply pipe passing through the bottom column and the inside of the straight cylinder and an air supply pipe fixedly extending to the inside of the right-angle water supply pipe. An annular water flow channel is formed between the air supply pipe located inside the right-angle water supply pipe and the right-angle water supply pipe. A water inlet is provided at the bottom end of the right-angle water supply pipe, and an air inlet is provided at the bottom end of the air supply pipe. The top ends of the air supply pipe and the right-angle water supply pipe are sealed ports.

[0011] Preferably, the cultivation assembly includes a connecting seat fixedly mounted on the outer wall of the right-angle water pipe and several groups of cultivation devices distributed in a circular array outside the connecting seat. The number of groups of the cultivation devices is the same as the number of support rods and corresponds one to one. Each group of cultivation devices includes several cultivation tubes. A ventilation cover is fixedly mounted on the outer wall of each cultivation tube, and two adjacent ventilation covers are connected by a connecting plate.

[0012] Preferably, a porous piston is provided in the sliding sleeve inside the cultivation cylinder, the space enclosed between the inner side of the cultivation cylinder and the upper side of the porous piston is used to hold soil for cultivating rice, and the porous piston is hinged to one end of the second connecting rod.

[0013] Preferably, the connecting seat is fixedly connected to the vent cover located adjacent thereto, a connecting pipe is fixedly sleeved inside the connecting seat, the connecting pipe extends to the inside of the right-angle water pipe and is fixedly connected to the airflow pipe, and the other end of the connecting pipe extends to the inside of the vent cover; The inner wall of the cultivation tube is provided with a mesh ring, and a communication groove is opened inside the cultivation tube for connecting the mesh ring and the ventilation cover.

[0014] Preferably, the bulldozer water supply mechanism includes a rotating drum rotatably sleeved on the outer wall of the right-angle water supply pipe, the rotating drum can be fixed to the outer wall of the right-angle water supply pipe by means of bolts in an extrusion manner, a plurality of scrapers are fixedly connected to the outer wall of the rotating drum in an annular array, the lower end surface of the scraper is flush with the upper end surface of the cultivation drum, a water pipe is fixedly connected to the upper side of each scraper, a liquid storage cavity is formed between the rotating drum and the right-angle water supply pipe, the water pipe is connected to the liquid storage cavity, a plurality of through holes are opened in an annular array on the outer wall of the right-angle water supply pipe for connecting the liquid storage cavity and the inner side of the right-angle water supply pipe, and a plurality of water spraying pipes are fixedly connected to the outer wall of the water supply pipe.

[0015] Preferably, the water and soil recovery assembly includes a guide cylinder arranged at an angle, and a support plate for supporting the guide cylinder is fixedly connected between the guide cylinder and the chassis.

[0016] A plant protection temperature control method for indoor rice seedling cultivation, comprising the following steps: Step 1: Place rice cultivation soil inside the cultivation tube in advance, and place the seeds in the soil inside the cultivation tube; Step 2: When the soil inside the cultivation tube needs to be watered, the water inlet is connected to the external water supply pipe, and water is introduced into the right-angled water pipe through the water inlet. The water flows along the internal cavity of the right-angled water pipe. As the water pressure inside the right-angled water pipe increases, the water flows into the liquid storage cavity through the through hole, and flows into the water flow pipe through the liquid storage cavity, and finally sprayed toward the inside of the cultivation tube through the water spray pipe arranged outside the water flow pipe; Step 3: When the temperature inside the incubator needs to be adjusted, the air inlet is connected to the external air supply pipe so that air at an appropriate temperature flows through the air delivery pipe. The air inside the air delivery pipe can be delivered to the inside of one of the ventilation covers through the connecting pipe. Under the action of the connecting plate, the air flow circulates inside all the ventilation covers and is finally discharged into the space inside the incubator through the outflow plate, thereby adjusting the temperature of the space inside the incubator. Step 4: Part of the airflow flowing inside the ventilation cover can enter the soil inside the cultivation tube through the mesh ring and the connecting groove. In addition, heat can be exchanged between the airflow and the cultivation tube, so that the temperature in the airflow can be absorbed by the cultivation tube, significantly improving the temperature regulation efficiency of the soil. Step 5: When rice cultivation is completed and transplanting is required, the supporting drum is rotated downward, the supporting drum rotates on the outer wall of the lifting drum and pulls the lifting drum downward. When the lifting drum moves downward, the vertical rods are dragged by the first connecting rod, so that the vertical rods are close to each other under the guidance of the right-angle plate and the limit groove; Step 6: The vertical rods approaching each other drive the supporting rod to move, and the supporting rod pushes the porous piston upward through the second connecting rod until the upper end surface of the porous piston is flush with the upper end surface of the cultivation cylinder, so that the porous piston lifts out the soil inside the cultivation cylinder as a whole, so that the soil loses the constraint of the inner wall of the cultivation cylinder and becomes loose. At this time, it is convenient to remove the cultivated rice seedlings from the soil, avoiding damage to the rice seedlings due to excessive pulling force. At this time, the roots of the rice seedlings will also carry a large amount of soil, thereby improving the survival rate of the rice seedlings. Step 7: After the rice seedlings are taken out, rotate the scraper. The revolving scraper can push the soil remaining on the top of the cultivation cylinder and the porous piston, so that the soil after use can be collected and discharged through the guide cylinder, which is convenient for reuse and cleaning the planting environment.

[0017] The working principle and beneficial effects of the present invention are: In the present invention, a water supply and temperature control component is provided inside the supporting mechanism, and multiple cultivation components are distributed vertically on the outside of the water supply and temperature control component. Under the action of the water supply and temperature control component, when the temperature of the space inside the incubator needs to be adjusted, the air inlet is connected to the external air supply pipe, so that the airflow with suitable temperature and humidity flows inside the air supply pipe. The airflow inside the air supply pipe can be transported to the inside of one of the ventilation covers through the connecting pipe. Under the action of the connecting plate, the airflow flows inside all the ventilation covers and is finally discharged to the inner space of the incubator through the outflow plate, thereby regulating the temperature of the inner space of the incubator. Part of the airflow flowing inside the ventilation cover can enter the soil inside the cultivation tube through the mesh ring and the connecting groove. In addition, the airflow and the cultivation tube can also exchange heat, so that the temperature in the airflow can be absorbed by the cultivation tube, realizing synchronous temperature control of the soil and air, and significantly improving the temperature regulation efficiency of the soil. In the present invention, a bulldozer water delivery mechanism is provided on the upper side of each cultivation assembly. Under the action of the bulldozer water delivery mechanism, when it is necessary to water the soil inside the cultivation tube, the water inlet is connected to the external water supply pipe, and water is introduced into the right-angle water delivery pipe through the water inlet. The water flows along the internal cavity of the right-angle water delivery pipe. As the water pressure inside the right-angle water delivery pipe increases, the water flows into the liquid storage cavity through the through hole, and flows into the water flow pipe through the liquid storage cavity, and finally sprayed toward the inside of the cultivation tube through the water spray pipe provided on the outside of the water flow pipe, thereby achieving precise irrigation. In the present invention, a support mechanism is provided at the top center of the chassis, and the position of several transmission frames can be adjusted by the support mechanism. When rice cultivation is completed and transplanting is required, the position of the transmission frame is adjusted by the support mechanism, and the vertical rods close to each other are used to drive the support rod to move. The support rod pushes the porous piston upward through the second connecting rod until the upper end surface of the porous piston is flush with the upper end surface of the cultivation tube, so that the porous piston lifts out the soil inside the cultivation tube as a whole, causing the soil to lose the constraint of the inner wall of the cultivation tube and become loose. At this time, it is convenient to remove the cultivated rice seedlings from the soil, avoiding damage to the rice seedlings due to excessive pulling force. At this time, the roots of the rice seedlings will also carry a large amount of soil, thereby improving the survival rate of the rice seedlings. In the present invention, a water and soil recovery component is provided below the cultivation component at the lowermost side. After the rice seedlings are taken out, the scraper is rotated, and the revolving scraper can push the soil remaining on the cultivation cylinder and the top of the porous piston, so that the soil after use can be collected and discharged through the guide cylinder, which is convenient for reuse and also convenient for cleaning the planting environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a three-dimensional schematic diagram of a plant protection and temperature control device for indoor rice seedling cultivation proposed by the present invention; Figure 2 This is a schematic diagram of the internal assembly structure of the incubator proposed by the present invention; Figure 3 This is a schematic diagram of the transmission frame structure proposed by the present invention; Figure 4 This is a schematic diagram of the assembly structure of the supporting mechanism and water supply and temperature control component proposed in the present invention; Figure 5 This is a schematic diagram of the structure of the cultivation component proposed by the present invention; Figure 6 for Figure 2 A in the middle is an enlarged structural diagram; Figure 7 This is a partial cross-sectional structural diagram of the bulldozer and water delivery mechanism proposed in the present invention; In the picture: 1. Incubator; 2. Door body; 3. Water and soil recovery assembly; 31. Guide cylinder; 32. Support plate; 4. Supporting and closing mechanism; 41. Bottom column; 42. Straight cylinder; 43. Supporting cylinder; 44. Lifting cylinder; 5. Chassis; 51. Limiting slot; 6. Transmission frame; 61. Vertical rod; 62. Support rod; 63. Right-angle plate; 64. Ball bearing; 65. First connecting rod; 66. Second connecting rod; 7. Bulldozer and water delivery mechanism; 71. Rotating drum; 72. Scraper; 73. Water flow pipe; 74. Water spray pipe; 75. Through hole; 76. Liquid storage chamber; 8. Cultivation assembly; 81. Cultivation tube; 82. Ventilation cover; 83. Connecting plate; 84. Outflow plate; 85. Net ring; 86. Porous piston; 87. Connecting groove; 88. Connecting pipe; 89. Connecting seat; 9. Water supply and temperature control assembly; 91. Right-angle water supply pipe; 92. Air flow pipe; 93. Water inlet; 94. Air inlet. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention. Example

[0021] See also Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 A plant protection and temperature control device and method for indoor rice seedling cultivation comprises: a cultivation box 1 and a door 2 mounted on one side of the cultivation box 1. A chassis 5 is fixedly mounted at the bottom of the cultivation box 1, and a plurality of retaining grooves 51 are arranged in a circular array on the top of the chassis 5. A plurality of transmission frames 6 are arranged in a circular array on the upper side of the chassis 5, with the number of transmission frames 6 being the same and corresponding to the retaining grooves 51. A support mechanism 4 is provided at the center of the top of the chassis 5, which allows the position of the plurality of transmission frames 6 to be adjusted.

[0022] Specifically, the transmission frame 6 includes a right-angle plate 63 that is slidably mounted on the inner side of the limiting groove 51, and balls 64 are distributed on the outer wall of the bottom of the right-angle plate 63. A vertical rod 61 is fixedly connected to the upper side of the right-angle plate 63, and a plurality of support rods 62 are fixedly connected to the outer wall of the vertical rod 61. The outer wall of each support rod 62 is hinged with a plurality of second connecting rods 66, and the outer wall of each vertical rod 61 is hinged with a plurality of first connecting rods 65.

[0023] Specifically, the supporting mechanism 4 includes a bottom column 41 fixed to the top of the chassis 5, a straight cylinder 42 is fixed to the top of the bottom column 41, a thread is provided on the lower outer wall of the straight cylinder 42, a lifting cylinder 44 is provided on the sliding sleeve of the outer wall of the straight cylinder 42, a supporting cylinder 43 is provided on the rotating sleeve of the lower outer wall of the lifting cylinder 44, and the lower inner wall of the supporting cylinder 43 is threadedly connected to the straight cylinder 42.

[0024] In this embodiment, the support cylinder 43 is rotated downward, and the support cylinder 43 rotates on the outer wall of the lifting cylinder 44 and pulls the lifting cylinder 44 downward. When the lifting cylinder 44 moves downward, the vertical rod 61 is dragged by the first connecting rod 65, so that the vertical rods 61 are close to each other under the guidance of the right-angle plate 63 and the limiting groove 51. Example

[0025] See also Figure 2-Figure 7 , a plant protection temperature control device and method for indoor rice seedling cultivation, including all the contents of Example 1. In addition, a water supply and temperature control component 9 is provided inside the supporting mechanism 4, and a plurality of cultivation components 8 are distributed vertically on the outside of the water supply and temperature control component 9. A pusher and water supply mechanism 7 is provided on the upper side of each cultivation component 8, which can supply water to the cultivation component 8 and push away the soil above the cultivation component 8. A water and soil recovery component 3 is provided below the cultivation component 8 located at the lowermost side, which is used to collect the soil moisture that falls from the cultivation component 8. Among them, the water and soil recovery component 3 includes a guide cylinder 31 arranged in an inclined manner, and a support plate 32 for supporting the guide cylinder 31 is fixedly connected between the guide cylinder 31 and the chassis 5.

[0026] Specifically, the water supply and temperature control component 9 includes a right-angle water supply pipe 91 that passes through the bottom column 41 and the straight cylinder 42, and an air supply pipe 92 that is fixed and extends to the inside of the right-angle water supply pipe 91. An annular water flow channel is formed between the air supply pipe 92 located inside the right-angle water supply pipe 91 and the right-angle water supply pipe 91. A water inlet 93 is provided at the bottom end of the right-angle water supply pipe 91, and an air inlet 94 is provided at the bottom end of the air supply pipe 92. The top ends of the air supply pipe 92 and the right-angle water supply pipe 91 are sealed ports.

[0027] Specifically, the cultivation assembly 8 includes a connecting seat 89 fixedly mounted on the outer wall of the right-angle water pipe 91 and several groups of cultivation devices distributed in a circular array outside the connecting seat 89. The number of groups of cultivation devices is the same as the number of support rods 62 and corresponds one to one. Each group of cultivation devices includes several cultivation tubes 81. The outer wall of each cultivation tube 81 is fixedly mounted with a ventilation cover 82, and two adjacent ventilation covers 82 are connected by a connecting plate 83.

[0028] Furthermore, a porous piston 86 is provided in a sliding sleeve inside the cultivation tube 81 . The space enclosed between the inner side of the cultivation tube 81 and the upper side of the porous piston 86 is used to hold soil for cultivating rice. The porous piston 86 is hinged to one end of the second connecting rod 66 .

[0029] Furthermore, the connecting seat 89 is fixedly connected to the adjacent ventilation cover 82. A connecting pipe 88 is fixedly sleeved inside the connecting seat 89. The connecting pipe 88 extends to the inside of the right-angle water pipe 91 and is fixedly connected to the air flow pipe 92. The other end of the connecting pipe 88 extends to the inside of the ventilation cover 82. The inner wall of the cultivation tube 81 is provided with a mesh ring 85, and the cultivation tube 81 has a connecting groove 87 inside for connecting the mesh ring 85 and the ventilation cover 82.

[0030] Specifically, the bulldozer water supply mechanism 7 includes a rotating drum 71 rotatably sleeved on the outer wall of the right-angled water supply pipe 91. The rotating drum 71 can be fixed to the outer wall of the right-angled water supply pipe 91 by bolts in an extrusion manner. A plurality of scrapers 72 are fixedly connected to the outer wall of the rotating drum 71 in an annular array. The lower end surface of the scraper 72 is flush with the upper end surface of the cultivation drum 81. A water pipe 73 is fixedly connected to the upper side of each scraper 72. A liquid storage chamber 76 is formed between the rotating drum 71 and the right-angled water supply pipe 91. The water pipe 73 is connected to the liquid storage chamber 76. A plurality of through holes 75 are opened in an annular array on the outer wall of the right-angled water supply pipe 91 for connecting the liquid storage chamber 76 and the inner side of the right-angled water supply pipe 91. A plurality of water spray pipes 74 are fixedly connected to the outer wall of the water supply pipe 73.

[0031] In this embodiment, when it is necessary to water the soil inside the cultivation tube 81, the water inlet 93 is connected to the external water supply pipe, and water is introduced into the right-angle water pipe 91 through the water inlet 93. The water flows along the internal cavity of the right-angle water pipe 91. As the water pressure inside the right-angle water pipe 91 increases, the water flows through the through hole 75 into the liquid storage chamber 76, and flows into the water pipe 73 through the liquid storage chamber 76, and finally sprayed toward the inside of the cultivation tube 81 through the spray pipe 74 arranged on the outside of the water pipe 73.

[0032] In this embodiment, when the temperature inside the incubator 1 needs to be adjusted, the air inlet 94 is connected to the external air supply pipe, allowing air of an appropriate temperature to flow through the air delivery pipe 92. The air inside the air delivery pipe 92 can be delivered to the interior of one of the vent hoods 82 through the connecting pipe 88. Under the action of the connecting plate 83, the air flow circulates inside all of the vent hoods 82 and is ultimately discharged from the interior of the incubator 1 through the outlet plate 84, thereby regulating the temperature of the interior of the incubator 1. It should be noted that the external air supply pipe can be connected to existing devices such as a heater and a humidifier. For example, when the air temperature is low, warm air at around 20°C can be introduced to increase the temperature. When the drying temperature is high, moist air can be introduced to humidify and cool the air.

[0033] In this embodiment, the vertical rods 61 that are close to each other drive the supporting rod 62 to move, and the supporting rod 62 pushes the porous piston 86 upward through the second connecting rod 66 until the upper end surface of the porous piston 86 is flush with the upper end surface of the cultivation cylinder 81, so that the porous piston 86 lifts out the soil inside the cultivation cylinder 81 as a whole, so that the soil loses the constraint of the inner wall of the cultivation cylinder 81 and becomes loose. At this time, it is convenient to remove the cultivated rice seedlings from the soil, avoiding damage to the rice seedlings due to excessive pulling force. At this time, the roots of the rice seedlings will also carry a large amount of soil, thereby improving the survival rate of the rice seedlings.

[0034] In this embodiment, after the rice seedlings are taken out, the scraper 72 is rotated, and the revolving scraper 72 can push the soil remaining on the top of the cultivation cylinder 81 and the porous piston 86, so that the soil after use can be collected and discharged through the guide cylinder 31, which is convenient for reuse and also convenient for cleaning the planting environment.

[0035] Working Principle and Usage Process: First, rice cultivation soil is pre-placed inside the cultivation tube 81, and seeds are placed in the soil inside the cultivation tube 81. When the soil inside the cultivation tube 81 needs to be watered, the water inlet 93 is connected to the external water supply pipe, and water is introduced into the right-angled water pipe 91 through the water inlet 93. The water flows along the internal cavity of the right-angled water pipe 91. As the water pressure inside the right-angled water pipe 91 increases, the water flows through the through hole 75 into the liquid storage chamber 76, and then flows into the water pipe 73 through the liquid storage chamber 76. Finally, it is sprayed into the cultivation tube 81 through the water spray pipe 74 arranged outside the water pipe 73. When the temperature inside the incubator 1 needs to be adjusted, the air inlet 94 is connected to the external air supply pipe to allow air at an appropriate temperature to flow into the air delivery pipe 92. The airflow within the air delivery tube 92 is delivered to the interior of one of the vent hoods 82 via the connecting pipe 88. Under the action of the connecting plate 83, the airflow circulates through all of the vent hoods 82 and ultimately exits the interior of the incubator 1 through the outlet plate 84, thereby regulating the temperature within the incubator 1. A portion of the airflow within the vent hood 82 can enter the soil within the cultivation tube 81 through the mesh 85 and connecting groove 87. Furthermore, heat exchange occurs between the airflow and the cultivation tube 81, allowing the heat in the airflow to be absorbed by the cultivation tube 81, significantly improving the efficiency of soil temperature regulation. When rice cultivation is completed and transplanting is required, the support cylinder 43 is rotated downward, and the support cylinder 43 rotates on the outer wall of the lifting cylinder 44 and pulls the lifting cylinder 44 downward. When the lifting cylinder 44 moves downward, the vertical rods 61 are dragged by the first connecting rod 65, so that the vertical rods 61 are close to each other under the guidance of the right-angle plate 63 and the limiting groove 51. The vertical rods 61 that are close to each other drive the supporting rod 62 to move, and the supporting rod 62 pushes the porous piston 86 upward through the second connecting rod 66 until the upper end surface of the porous piston 86 is flush with the upper end surface of the cultivation cylinder 81, so that the porous piston 86 lifts out the soil inside the cultivation cylinder 81 as a whole, so that the soil loses the constraint of the inner wall of the cultivation cylinder 81 and becomes loose. At this time, it is convenient to remove the cultivated rice seedlings from the soil to avoid damage to the rice seedlings due to excessive pulling force. At this time, the roots of the rice seedlings will also carry a large amount of soil, which improves the survival rate of the rice seedlings. After the rice seedlings are taken out, the scraper 72 is turned, and the revolving scraper 72 can push the soil remaining on the top of the cultivation cylinder 81 and the porous piston 86, so that the soil after use can be collected and discharged through the guide cylinder 31, which is convenient for reuse and for cleaning the planting environment.

[0036] It is worth noting that the circuits, electronic components and modules involved in the present invention are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plant protection temperature control device for indoor rice seedling cultivation, comprising: A cultivation box (1) and a door body (2) installed on one side of the cultivation box (1), characterized in that a chassis (5) is fixedly installed at the bottom of the cultivation box (1), and a plurality of limiting grooves (51) are formed in a circular array on the top of the chassis (5); A plurality of transmission frames (6) are distributed in a circular array on the upper side of the chassis (5), and the number of the transmission frames (6) is the same as that of the limiting slots (51) and they correspond one to one; A support mechanism (4) is provided at the top center of the chassis (5), and the positions of the plurality of transmission frames (6) can be adjusted by the support mechanism (4); A water supply and temperature control component (9) is provided inside the supporting mechanism (4), and a plurality of cultivation components (8) are distributed vertically outside the water supply and temperature control component (9); Each cultivation component (8) is provided with a soil pushing and water delivery mechanism (7) on its upper side, capable of delivering water into the cultivation component (8) and pushing away the soil above the cultivation component (8); A water and soil recovery component (3) is provided below the cultivation component (8) at the lowermost side, and is used to collect soil moisture that falls from the cultivation component (8).

2. A plant protection temperature control device for indoor rice seedling cultivation according to claim 1, characterized in that: The transmission frame (6) includes a right-angle plate (63) slidably sleeved on the inner side of the limiting groove (51), and balls (64) are distributed on the outer wall of the bottom of the right-angle plate (63). The upper side of the right-angle plate (63) is fixedly connected to a vertical rod (61), and the outer wall of the vertical rod (61) is fixedly connected to a plurality of supporting rods (62). The outer wall of each supporting rod (62) is hinged to a plurality of second connecting rods (66), and the outer wall of each vertical rod (61) is hinged to a plurality of first connecting rods (65).

3. A plant protection temperature control device for indoor rice seedling cultivation according to claim 2, characterized in that: The supporting mechanism (4) comprises a bottom column (41) fixedly connected to the top of the chassis (5); a straight cylinder (42) is fixedly connected to the top of the bottom column (41); a thread is provided on the lower outer wall of the straight cylinder (42); a lifting cylinder (44) is provided on the sliding sleeve of the outer wall of the straight cylinder (42); a supporting cylinder (43) is provided on the rotating sleeve of the lower outer wall of the lifting cylinder (44); and the lower inner wall of the supporting cylinder (43) is threadedly connected to the straight cylinder (42).

4. A plant protection temperature control device for indoor rice seedling cultivation according to claim 3, characterized in that: The water delivery and temperature control assembly (9) comprises a right-angled water delivery pipe (91) passing through the bottom column (41) and the straight cylinder (42), and an air flow delivery pipe (92) fixedly extending into the right-angled water delivery pipe (91). An annular water flow channel is formed between the air flow delivery pipe (92) located inside the right-angled water delivery pipe (91) and the right-angled water delivery pipe (91). A water inlet (93) is provided at the bottom end of the right-angled water delivery pipe (91), and an air inlet (94) is provided at the bottom end of the air flow delivery pipe (92). The top ends of the air flow delivery pipe (92) and the right-angled water delivery pipe (91) are sealed ports.

5. A plant protection temperature control device for indoor rice seedling cultivation according to claim 4, characterized in that: The cultivation assembly (8) comprises a connecting seat (89) fixedly sleeved on the outer wall of the right-angle water pipe (91) and a plurality of groups of cultivation devices distributed in a circular array outside the connecting seat (89). The number of groups of the cultivation devices is the same as the number of supporting rods (62) provided and corresponds one to one. Each group of cultivation devices comprises a plurality of cultivation tubes (81). The outer wall of each cultivation tube (81) is fixedly sleeved with a ventilation cover (82), and two adjacent ventilation covers (82) are connected via a connecting plate (83).

6. The plant protection temperature control device for indoor rice seedling cultivation according to claim 5, characterized in that: A porous piston (86) is provided in a sliding sleeve inside the cultivation cylinder (81). The space enclosed between the inner side of the cultivation cylinder (81) and the upper side of the porous piston (86) is used to hold soil for cultivating rice. The porous piston (86) is hinged to one end of the second connecting rod (66).

7. The plant protection temperature control device for indoor rice seedling cultivation according to claim 6, characterized in that: The connecting seat (89) is fixedly connected to the vent cover (82) located at an adjacent position thereof. A connecting pipe (88) is fixedly sleeved inside the connecting seat (89). The connecting pipe (88) extends to the inside of the right-angle water pipe (91) and is fixedly connected to the air flow pipe (92). The other end of the connecting pipe (88) extends to the inside of the vent cover (82). The inner wall of the cultivation tube (81) is provided with a mesh ring (85), and a communication groove (87) is provided inside the cultivation tube (81) for connecting the mesh ring (85) and the ventilation cover (82).

8. The plant protection temperature control device for indoor rice seedling cultivation according to claim 7, characterized in that: The bulldozer water supply mechanism (7) comprises a rotating drum (71) rotatably sleeved on the outer wall of the right-angle water supply pipe (91), the rotating drum (71) can be fixed to the outer wall of the right-angle water supply pipe (91) by means of bolts in an extrusion manner, a plurality of scrapers (72) are fixedly connected to the outer wall of the rotating drum (71) in an annular array, the lower end surface of the scraper (72) is flush with the upper end surface of the cultivation cylinder (81), and a water flow pipe (73) is fixedly connected to the upper side of each scraper (72), a liquid storage chamber (76) is formed between the rotating drum (71) and the right-angle water supply pipe (91), the water flow pipe (73) is connected to the liquid storage chamber (76), a plurality of through holes (75) are opened in an annular array on the outer wall of the right-angle water supply pipe (91), for connecting the liquid storage chamber (76) and the inner side of the right-angle water supply pipe (91), and a plurality of water spray pipes (74) are fixedly connected to the outer wall of the water flow pipe (73).

9. The plant protection temperature control device for indoor rice seedling cultivation according to claim 8, characterized in that: The water and soil recovery component (3) comprises a guide cylinder (31) arranged in an inclined manner, and a support plate (32) for supporting the guide cylinder (31) is fixedly connected between the guide cylinder (31) and the chassis (5).

10. A method for controlling plant protection temperature for indoor rice seedling cultivation, using the plant protection temperature control device for indoor rice seedling cultivation according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: placing rice cultivation soil inside the cultivation cylinder (81) in advance, and placing seeds in the soil inside the cultivation cylinder (81); Step 2: When the soil inside the cultivation tube (81) needs to be watered, the water inlet (93) is connected to the external water supply pipe, and water is introduced into the right-angle water pipe (91) through the water inlet (93). The water flows along the internal cavity of the right-angle water pipe (91). As the water pressure inside the right-angle water pipe (91) increases, the water flows into the liquid storage chamber (76) through the through hole (75), and flows into the water pipe (73) through the liquid storage chamber (76). Finally, the water is sprayed toward the inside of the cultivation tube (81) through the water spray pipe (74) provided on the outside of the water pipe (73); Step 3: When the temperature of the inner space of the incubator (1) needs to be adjusted, the air inlet (94) is connected to the external air supply pipe so that the airflow of suitable temperature flows inside the airflow delivery pipe (92). The airflow inside the airflow delivery pipe (92) can be delivered to the inside of one of the ventilation covers (82) through the connecting pipe (88). Under the action of the connecting plate (83), the airflow flows inside all the ventilation covers (82) and is finally discharged from the inner space of the incubator (1) through the outflow plate (84), thereby adjusting the temperature of the inner space of the incubator (1); Step 4: Part of the airflow flowing inside the ventilation cover (82) can enter the soil inside the cultivation tube (81) through the mesh ring (85) and the connecting groove (87), and the airflow and the cultivation tube (81) can also exchange heat, so that the temperature in the airflow can be absorbed by the cultivation tube (81), significantly improving the temperature regulation efficiency of the soil; Step 5: When rice cultivation is completed and transplanting is required, the supporting cylinder (43) is rotated downward, the supporting cylinder (43) is rotated on the outer wall of the lifting cylinder (44) and the lifting cylinder (44) is pulled downward. When the lifting cylinder (44) moves downward, the vertical rods (61) are dragged by the first connecting rod (65), so that the vertical rods (61) are close to each other under the guidance of the right-angle plate (63) and the limiting groove (51); Step 6: The vertical rods (61) that are close to each other drive the supporting rod (62) to move, and the supporting rod (62) pushes the porous piston (86) upward through the second connecting rod (66) until the upper end surface of the porous piston (86) is flush with the upper end surface of the cultivation cylinder (81), so that the porous piston (86) lifts out the soil inside the cultivation cylinder (81) as a whole, so that the soil loses the constraint of the inner wall of the cultivation cylinder (81) and becomes loose. At this time, it is convenient to remove the cultivated rice seedlings from the soil, and avoid the rice seedlings being damaged due to excessive pulling force. At this time, the roots of the rice seedlings will also carry a large amount of soil, thereby improving the survival rate of the rice seedlings; Step 7: After the rice seedlings are taken out, the scraper (72) is rotated. The rotating scraper (72) can push the soil remaining on the top of the cultivation cylinder (81) and the porous piston (86), so that the soil after use can be collected and discharged through the guide cylinder (31), which is convenient for reuse and also convenient for cleaning the planting environment.

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