Intelligent agricultural plant seedling cultivation device

Abstract

The application discloses a kind of wisdom agricultural plant seedling cultivation devices, it is related to seedling cultivation field, including bottom plate, lifting plate and adjusting mechanism, bottom plate upper surface four corners are all fixed with L-shaped vertical plate, and bottom plate upper surface is located at the corner of four L-shaped vertical plate and is fixed with vertical pipe, four vertical pipes are sequentially provided with two ventilation holes and four ventilation pipes from below to above, adjusting mechanism is composed of lifting assembly, winding assembly and dredging component, lifting assembly is arranged on horizontal plate, lifting assembly is used to control lifting plate to move up according to the height of wheat growth, dredging component is equipped with several, respectively installed on ventilation pipe and follow the movement of lifting plate trigger ventilation pipe dredging, according to the different growth stages of wheat gradually increase ventilation demand, the present application realizes that ventilation pipe gradually dredges with lifting plate and moves up, solves the problem that the ventilation amount of traditional cultivation device is fixed and cannot match growth demand.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of seedling cultivation, and particularly relates to a smart agricultural plant seedling cultivation device. BACKGROUND

[0002] As one of the main global food crops, the yield and quality of wheat are directly related to food security and agricultural economic development. Traditional wheat planting adopts field direct seeding, which is easily affected by natural factors such as low temperature, drought, diseases and pests, and weed competition, resulting in low survival rate of seedlings. Through indoor seedling cultivation, the growth environment can be precisely controlled, and healthy seedlings can be cultivated and then transplanted to the field, which can significantly improve the resistance and yield of wheat. Therefore, wheat seedling cultivation has become a core link in the modern wheat planting system.

[0003] A light and heat controllable multi-layer liftable cultivation frame for wheat-corn seedling cultivation described in the prior art comprises a shock-absorbing base, a bearing plate and a cultivation box. The shock-absorbing base is fixed with side plates on the upper two sides, and the side plates are riveted with the shock-absorbing base. The bearing plate is installed on the upper middle part of the shock-absorbing base. The cultivation box is arranged above the bearing plate. The electric push rod is installed on the lower two sides of the bearing plate. The bearing plate is fixed with sliding blocks on the two sides. The top plate is installed on the upper top end of the bearing plate. The illumination lamp is fixed on the upper part of the cultivation box. The limiting blocks are arranged on the left and right sides of the cultivation box. The water pump is installed on the upper two sides of the top plate. The water pipe is arranged below the right lower part of the water pump. The water pipe and the water pump are flange connected. The water tank is fixed on the lower end of the water pipe.

[0004] The above technology can improve the space utilization rate by setting the multi-layer bearing plate. However, only the natural ventilation of the open structure of the cultivation box is used. When the ventilation needs are different at different growth stages of the wheat seedlings, such as the lower ventilation amount required to maintain the humidity in the box during the wheat seedling stage, and the ventilation amount required to be increased to reduce the risk of diseases after the jointing stage, the natural ventilation method cannot flexibly adjust the ventilation amount according to the actual needs. SUMMARY

[0005] Therefore, the present application aims to provide a smart agricultural plant seedling cultivation device to solve the technical problems in the background.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme.

[0007] The utility model provides a kind of wisdom agricultural plant seedling cultivation device, including bottom plate, lifting plate and adjusting mechanism, the upper surface of the bottom plate is fixed with cultivation box, the opening of the cultivation box is slidably installed with multiple cultivation frame, the upper surface of the bottom plate four corners are all fixed with L type vertical board, and the upper surface of the bottom plate is located four L type vertical board corner is all fixed with vertical tube, the top of lifting plate is equipped with horizontal plate, the both sides of the horizontal plate are all fixed with top plate, the lower surface of two top plate both ends are all fixedly connected with the top of corresponding two vertical tubes, the four sides of the cultivation box and between four L type vertical boards are all equipped with light-transmitting film, the outer wall of four vertical tubes from bottom to top is sequentially equipped with two ventilation holes and four ventilation pipes, the four corners of the lifting plate are all provided with perforation, and each perforation is slidably sleeved on vertical tube;

[0008] The adjusting mechanism is composed of a lifting assembly, a winding assembly, and a dredging assembly. The lifting assembly is arranged on the horizontal plate and is used to control the lifting plate to move upwards according to the growth height of wheat. The winding assembly is provided with four groups, which respectively control the corresponding light-transmitting film to be wound or unwound following the movement of the lifting plate. The dredging assembly is provided with a plurality of components, which are respectively installed on the ventilation pipes and triggered to dredge the ventilation pipes following the movement of the lifting plate, so as to gradually increase the ventilation demand according to different growth stages of wheat.

[0009] Specifically, each dredging assembly includes a blocking plate, which is located inside the ventilation pipe. A vertical rod is welded to the top of the blocking plate. The vertical rod extends to the outside through the ventilation pipe. A worm gear is fixedly sleeved on the outer wall of the top end of the vertical rod. A worm is meshingly connected to one side of the worm gear. Connecting rods are fixed to both ends of the worm. A spur gear is fixedly sleeved on the outer wall of one connecting rod. A rack that matches the spur gear is mounted on one side of the hole wall of the perforation through screws.

[0010] Specifically, a sealing rubber is bonded to the outer wall of the blocking plate. An installation block is fixed to the outer wall of the vertical tube at the position of the worm. The other connecting rod is rotatably connected to the installation block. An inclined support frame is fixed to the outer wall of the ventilation pipe. The end of the support frame is sleeved on the connecting rod.

[0011] Specifically, the hole diameter of each ventilation hole is smaller than the pipe diameter of the ventilation pipe. An installation plate is fixedly connected to the central part of the upper surface of each top plate through screws. A fan is fixedly connected to each installation plate through screws. The outlet of each fan is connected to the two vertical tubes through a gas supply pipe. A plurality of air outlet holes are formed in the upper surface of the lifting plate near the long side.

[0012] The specific technical scheme of the present application is as follows: the lifting assembly comprises a double-shaft motor, the base of the double-shaft motor is fixedly connected with the central part of the upper surface of the horizontal plate through screws, both output ends of the double-shaft motor are fixedly connected with rope winding rollers, both steel wires are wound around the two rope winding rollers, the ends of the two steel wires penetrate through the horizontal plate and are fixedly connected with the upper surface of the lifting plate through bolts, the upper surface of the horizontal plate is provided with frame plates at the ends of the two rope winding rollers, the ends of the two rope winding rollers are rotatably connected with the frame plates through shafts, and the bottom ends of the two frame plates are fixedly connected with the horizontal plate through screws.

[0013] The specific technical scheme of the present application is as follows: the lifting assembly comprises a double-shaft motor, the base of the double-shaft motor is fixedly connected with the central part of the upper surface of the horizontal plate through screws, both output ends of the double-shaft motor are fixedly connected with rope winding rollers, both steel wires are wound around the two rope winding rollers, the ends of the two steel wires penetrate through the horizontal plate and are fixedly connected with the upper surface of the lifting plate through bolts, the upper surface of the horizontal plate is provided with frame plates at the ends of the two rope winding rollers, the ends of the two rope winding rollers are rotatably connected with the frame plates through shafts, and the bottom ends of the two frame plates are fixedly connected with the horizontal plate through screws.

[0014] The specific technical scheme of the present application is as follows: the lifting assembly comprises a double-shaft motor, the base of the double-shaft motor is fixedly connected with the central part of the upper surface of the horizontal plate through screws, both output ends of the double-shaft motor are fixedly connected with rope winding rollers, both steel wires are wound around the two rope winding rollers, the ends of the two steel wires penetrate through the horizontal plate and are fixedly connected with the upper surface of the lifting plate through bolts, the upper surface of the horizontal plate is provided with frame plates at the ends of the two rope winding rollers, the ends of the two rope winding rollers are rotatably connected with the frame plates through shafts, and the bottom ends of the two frame plates are fixedly connected with the horizontal plate through screws.

[0015] The specific technical scheme of the present application is as follows: the lifting assembly comprises a double-shaft motor, the base of the double-shaft motor is fixedly connected with the central part of the upper surface of the horizontal plate through screws, both output ends of the double-shaft motor are fixedly connected with rope winding rollers, both steel wires are wound around the two rope winding rollers, the ends of the two steel wires penetrate through the horizontal plate and are fixedly connected with the upper surface of the lifting plate through bolts, the upper surface of the horizontal plate is provided with frame plates at the ends of the two rope winding rollers, the ends of the two rope winding rollers are rotatably connected with the frame plates through shafts, and the bottom ends of the two frame plates are fixedly connected with the horizontal plate through screws.

[0016] The specific technical scheme of the present application is as follows: the lifting assembly comprises a double-shaft motor, the base of the double-shaft motor is fixedly connected with the central part of the upper surface of the horizontal plate through screws, both output ends of the double-shaft motor are fixedly connected with rope winding rollers, both steel wires are wound around the two rope winding rollers, the ends of the two steel wires penetrate through the horizontal plate and are fixedly connected with the upper surface of the lifting plate through bolts, the upper surface of the horizontal plate is provided with frame plates at the ends of the two rope winding rollers, the ends of the two rope winding rollers are rotatably connected with the frame plates through shafts, and the bottom ends of the two frame plates are fixedly connected with the horizontal plate through screws.

[0017] The specific technical scheme of the present application is as follows: the lifting assembly comprises a double-shaft motor, the base of the double-shaft motor is fixedly connected with the central part of the upper surface of the horizontal plate through screws, both output ends of the double-shaft motor are fixedly connected with rope winding rollers, both steel wires are wound around the two rope winding rollers, the ends of the two steel wires penetrate through the horizontal plate and are fixedly connected with the upper surface of the lifting plate through bolts, the upper surface of the horizontal plate is provided with frame plates at the ends of the two rope winding rollers, the ends of the two rope winding rollers are rotatably connected with the frame plates through shafts, and the bottom ends of the two frame plates are fixedly connected with the horizontal plate through screws.

[0018] In summary, the present application has the following beneficial effects: the laser ranging sensor detects the growth height of wheat, triggers the lifting assembly to control the synchronous upward movement of the lifting plate, always reserves suitable growth space for seedlings, at the same time, the rack at the perforation of the lifting plate engages with the spur gear of the dredging assembly, drives the worm and worm gear transmission, makes the blocking plate in the ventilation pipe move up, realizes the gradual dredging of the ventilation pipe with the lifting plate, the seedlings only meet the low ventilation and humidity requirement through the ventilation hole in the seedling stage, more ventilation pipes are opened with the lifting plate in the jointing stage (increase ventilation to prevent diseases), and the difference in aperture between the ventilation hole and the ventilation pipe (the aperture of the ventilation hole is smaller) further refines the ventilation gradient, solves the problem of fixed ventilation in traditional cultivation devices and the inability to match the growth requirement;

[0019] And automatically release the rolled light-transmitting film, ensure that the film covers the four sides of the cultivation box at all times, avoid the loss of temperature and humidity caused by the exposure of the lifting plate, and provide a stable light environment for wheat in different growth stages through the high light transmission characteristics of the light-transmitting film (adapt to indoor natural light utilization); at the same time, the counterweight at the bottom end of the film and the bottom plate iron sheet are magnetically attracted, ensuring that the film is flat and wrinkle-free when it is unfolded, further improving the light transmission stability. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The cultivation device of the present application is shown in the axial view;

[0021] Figure 2 The cultivation box and the cultivation frame of the present application are shown in the schematic view;

[0022] Figure 3 The overall structure of the adjusting mechanism of the present application is shown in the schematic view;

[0023] Figure 4 The lifting plate of the present application is shown in the schematic view; Figure 3 The enlarged view of A in the present application is shown in the schematic view;

[0024] Figure 5 The vertical pipe structure of the present application is shown in the schematic view;

[0025] Figure 6 The lifting plate of the present application is shown in the schematic view; Figure 5 The enlarged view of B in the present application is shown in the schematic view;

[0026] Figure 7 The lifting plate of the present application is shown in the schematic view.

[0027] BRIEF DESCRIPTION OF DRAWINGS: 1, bottom plate; 101, L-shaped vertical plate; 1011, inner tooth; 102, cultivation box; 1021, cultivation frame; 1022, lap plate; 103, vertical pipe; 1031, ventilation hole; 1032, ventilation pipe; 2, lifting plate; 201, perforated hole; 202, exhaust hole; 203, serpentine liquid supply pipe; 2031, spray head; 204, daylight lamp; 205, laser ranging sensor; 3, horizontal plate; 301, top plate; 302, mounting plate; 303, fan; 304, air supply pipe; 4, light-transmitting film; 401, counterweight; 5, adjusting mechanism; 6, lifting assembly; 601, double-shaft motor; 602, winding rope roller; 603, frame plate; 604, steel wire rope; 7, winding assembly; 701, L-shaped support plate; 702, film winding roller; 703, meshing gear; 8, dredging assembly; 801, blocking plate; 802, vertical rod; 803, worm gear; 804, worm; 8041, connecting rod; 805, mounting block; 806, support frame; 807, spur gear. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0029] The embodiments of the present application will be described below according to the overall structure of the present application.

[0030] It should be noted that all electrical elements in the cultivation device are controlled by an external core controller, and a touch screen is provided, which can display device operating parameters (such as lifting plate height, temperature and humidity, etc.) in real time, support manual setting of cultivation stage parameters (such as light duration at different times, etc.), and have a fault alarm pop-up window function (such as motor overload, sensor abnormality, etc.). The core controller serves as a signal processing and instruction sending center, and is used for automatically controlling the operation of the cultivation device.

[0031] In this embodiment, please refer to Figure 1 - Figure 7As shown, a kind of intelligent agricultural plant seedling cultivation device, including bottom plate 1, lifting plate 2 and adjusting mechanism 5, the upper surface of bottom plate 1 is fixed with cultivation box 102, the opening of cultivation box 102 is slidably installed with multiple cultivation frames 1021, the both sides of multiple cultivation frames 1021 are integrally provided with L-shaped lap plate 1022, lap plate 1022 and the opening box wall of cultivation box 102 slidably contact, the inside of cultivation box 102 is fixed with horizontal rod symmetrically, the frame bottom of multiple cultivation frames 1021 is contacted with horizontal rod, the upper surface of bottom plate 1 four corners are all fixed with L-shaped vertical plate 101, and the upper surface of bottom plate 1 is located at the corner of four L-shaped vertical plates 101 and is all fixed with vertical pipe 103, the upper of lifting plate 2 is provided with horizontal plate 3, the both sides of horizontal plate 3 are all fixed with top plate 301, the lower surface of two top plates 301 both ends is all fixedly connected with the top end of corresponding two vertical pipes 103, the four sides of cultivation box 102 and between four L-shaped vertical plates 101 are all provided with light-transmitting film 4, the outer wall of four vertical pipes 103 towards cultivation box 102 is sequentially provided with two ventilation holes 1031 and four ventilation pipes 1032 from bottom to top, the four corners of lifting plate 2 are all provided with perforation 201, each perforation 201 is slidably sleeved on vertical pipe 103;

[0032] The lower surface of lifting plate 2 is fixed with serpentine liquid supply pipe 203 by mounting support, the inlet pipe of serpentine liquid supply pipe 203 penetrates lifting plate 2 and is connected with liquid supply tank by hose, the lower surface of serpentine liquid supply pipe 203 is evenly provided with a plurality of spray heads 2031, a plurality of fluorescent lamps 204 are installed on the lower surface of lifting plate 2 at the interval of serpentine liquid supply pipe 203, laser ranging sensor 205 is installed on the lower surface of lifting plate 2 close to perforation 201 and in the center;

[0033] Adjusting mechanism 5 is composed of lifting assembly 6, winding assembly 7 and dredging assembly 8, lifting assembly 6 is arranged on horizontal plate 3, lifting assembly 6 is used to control lifting plate 2 to move up according to the height of wheat growth, winding assembly 7 is provided with four groups, respectively controls corresponding light-transmitting film 4 to carry out winding and unwinding operation following the movement of lifting plate 2, dredging assembly 8 is provided with a plurality of, respectively installed on ventilation pipe 1032 and triggers ventilation pipe 1032 dredging following the movement of lifting plate 2, gradually increases ventilation demand according to different growth stages of wheat.

[0034] Wheat seeds (after 50 ℃ warm water soak 2 hours) sowing in the substrate in the cultivation frame 1021, cultivation frame 1021 by lap plate 1022 along the horizontal rod sliding adjustment interval, close light film 4, that is, the counterweight 401 adsorbed bottom plate 1 (magnet and iron sheet magnetic adsorption), form a sealed cultivation area, at this time the lifting plate 2 is in the initial low position, the laser ranging sensor 205 on its lower surface detects the initial height of the seedling (after sowing, not germination or just germination state), and transmits the signal to the external core controller. The core controller displays the initial parameters (lifting plate 2 height, cultivation box 102 temperature and humidity, etc.) through the touch screen, and the operator sets the parameters of each growth stage of wheat through the touch screen;

[0035] At this time, the light film 4 is in a semi-expanded state under the action of the winding assembly 7, ensuring that the cultivation box 102 is closed on four sides and maintaining the initial temperature and humidity; The blocking plate 801 of the dredging assembly 8 is closed in the initial state to close all ventilation pipes 1032, only the lower two ventilation holes 1031 of the vertical pipe 103 are in a ventilation state, meeting the low ventilation requirement of wheat seedlings; The double-shaft motor 601 of the lifting assembly 6 is in standby state, the steel wire rope 604 is kept tensioned to fix the position of the lifting plate 2, the serpentine liquid supply pipe 203 is connected smoothly with the hose of the liquid supply box, and the fluorescent lamp 204 is automatically started and stopped according to the set illumination time;

[0036] After the wheat seeds germinate and enter the seedling stage, the height of the seedlings gradually increases, and the laser ranging sensor 205 on the lower surface of the lifting plate 2 detects the height of the seedlings in real time. According to the preset parameters of the seedling stage, the core controller regularly instructs the nozzle 2031 of the serpentine liquid supply pipe 203 to open, the nutrient solution is transported to the serpentine liquid supply pipe 203 through the hose of the liquid supply box, and is uniformly sprayed to the surface of the substrate in the cultivation frame 1021 through the nozzle 2031, meeting the low nutrient requirement of seedlings in the seedling stage. In this stage, the dredging assembly 8 is not triggered, the ventilation pipe 1032 is still closed by the blocking plate 801, and only the airflow is delivered to the vertical pipe 103 by the low-speed mode of the fan 303 and discharged from the ventilation hole 1031, maintaining the humidity in the appropriate range;

[0037] As the wheat grows, after entering the jointing stage, the height of the seedlings increases significantly, and when the laser ranging sensor 205 detects that the distance between the top end of the seedlings and the lifting plate 2 is equal to or less than the threshold value of 10 cm, the sensor transmits the signal to the core controller, and the core controller starts the lifting assembly 6. The lifting plate 2 slowly moves upward along the vertical pipe 103 under the synergistic action of its own gravity and the steel wire rope 604, always maintaining a preset safe distance from the top end of the seedlings, avoiding pressing the seedlings;

[0038] When the lifting plate 2 moves up, the L-shaped support plate 701 fixed on the surface of the lifting plate 2 synchronously drives the winding assembly 7 to move up, and the winding roller 702 rolls along the inner spline 1011 and rotates counterclockwise in the process of moving up, gradually releasing the wound light-transmitting film 4. The weight block 401 at the bottom end of the film slowly rises as the film unwinds, and its two ends are in sliding contact with the L-shaped vertical plate 101 to keep the film flat, while the magnet on the lower surface of the weight block 401 is always magnetically attracted to the iron sheet of the bottom plate 1 (the film unwinding amount is small in the seedling stage, and the magnetic attraction force is sufficient for fixation), ensuring that the film always covers the four sides of the cultivation box 102, maintaining stable temperature and humidity in the box;

[0039] At this time, the rack in the perforation 201 of the lifting plate 2 will pass through the unblocking assembly 8 of the ventilation pipe 1032 one by one, causing the blocking plate 801 in the passed ventilation pipe 1032 to rotate, realizing the unblocking of the first ventilation pipe 1032, and the core controller instructs the fan 303 to switch to high-speed mode to increase the air supply to the vertical pipe 103. Air flow enters the cultivation box 102 through the ventilation hole 1031 and the four ventilation pipes 1032 at the same time, rapidly reducing the humidity in the box (such as controlled at 50%-60%), avoiding the occurrence of lodging or diseases of seedlings in the jointing stage due to high humidity, and as the seedlings continue to grow, the lifting plate 2 continues to move up, and the rack is engaged with the spur gear 807 of the subsequent ventilation pipe 1032 in turn, gradually opening more ventilation pipes 1032 to increase the ventilation amount in the box;

[0040] Until the cultivation of wheat seedlings is completed, the operator moves the weight block 401 upward to separate the weight block 401 from the bottom plate 1, facilitating the removal of the cultivation frame 1021 from the cultivation box 102 for seedling potting;

[0041] Thus, the ventilation pipe 1032 is gradually unblocked as the lifting plate 2 moves up, and the wheat seedlings in the jointing stage only meet the low-ventilation humidity requirement through the ventilation hole 1031, and more ventilation pipes 1032 are opened as the lifting plate 2 moves up (to prevent diseases by increasing the ventilation amount), and the difference in hole diameters between the ventilation hole 1031 and the ventilation pipe 1032 further refines the ventilation gradient, solving the problem of fixed ventilation amount in traditional cultivation devices that cannot match the growth requirements.

[0042] Please refer to Figure 1 、 Figure 3 and Figure 4 , the lifting assembly 6 includes a double-shaft motor 601, the base of the double-shaft motor 601 is fixedly connected with the upper surface of the horizontal plate 3 through screws, both output ends of the double-shaft motor 601 are fixedly connected with winding rollers 602, both winding rollers 602 are wound with steel wires 604, both ends of the two steel wires 604 penetrate through the horizontal plate 3 and are fixed on the upper surface of the lifting plate 2 through bolts, the horizontal plate 3 is provided with a bracket 603 on the upper surface at the ends of the two winding rollers 602, both ends of the two winding rollers 602 are rotationally connected with the bracket 603 through shafts, and the bottom ends of the two brackets 603 are fixedly connected with the horizontal plate 3 through screws.

[0043] Each winding assembly 7 comprises a film winding roller 702, the outer wall of both ends of the film winding roller 702 is fixedly sleeved with a meshing gear 703, each L-shaped vertical plate 101 is provided with a vertical internal spline 1011 close to the two plate surfaces of the cultivation box 102, the tooth surface of the two meshing gears 703 is in meshing connection with the corresponding internal spline 1011, the light-transmitting film 4 is wound on the film winding roller 702, the outer wall of both ends of the film winding roller 702 is sleeved with an L-shaped supporting plate 701 between the light-transmitting film 4 and the meshing gear 703, one end of each of the two L-shaped supporting plates 701 is screw-fixed with the upper surface of the lifting plate 2, the bottom end of each light-transmitting film 4 is fixedly provided with a counterweight 401, both ends of each counterweight 401 are in sliding contact with the corresponding L-shaped vertical plate 101, and the lower surface of each counterweight 401 is inlaid with a magnet, and the upper surface of the bottom plate 1 is inlaid with an iron sheet at the position of the magnet.

[0044] When the core controller starts the lifting assembly 6 and controls the lifting plate 2 to move upward, the double-shaft motor 601 is started and drives the winding rollers 602 on both sides to rotate through the two output ends, so as to wind the steel wire rope 604, and the wound steel wire rope 604 pulls the lifting plate 2, since the lifting plate 2 is sleeved on the four vertical pipes 103 in a sliding mode, the lifting plate 2 vertically rises along the vertical pipes 103, and simultaneously drives the serpentine liquid supply pipe 203, the fluorescent lamp 204, the laser ranging sensor 205 and the winding assembly 7 to move upward.

[0045] When the lifting plate 2 moves upward, the L-shaped supporting plate 701 fixed on the surface of the lifting plate 2 simultaneously drives the film winding roller 702 of the winding assembly 7 to move upward. Since the meshing gears 703 at both ends of the film winding roller 702 are always in meshing connection with the internal splines 1011 of the L-shaped vertical plate 101, the film winding roller 702 rolls along the internal splines 1011 and rotates counterclockwise in the process of moving upward, gradually releases the wound light-transmitting film 4, the counterweight 401 at the bottom end of the film slowly rises with the film being unfolded, both ends of the counterweight 401 are in sliding contact with the L-shaped vertical plate 101 to keep the film flat, and the magnet on the lower surface of the counterweight 401 is always magnetically attracted to the iron sheet of the bottom plate 1, so that the film always covers the four surfaces of the cultivation box 102, which not only avoids the loss of temperature and humidity due to the exposure of seedlings caused by the upward movement of the lifting plate 2, but also provides a stable light environment for wheat at different growth stages through the high light-transmitting property of the light-transmitting film 4 (adaptation to indoor natural light utilization).

[0046] Please refer to Figure 5 and Figure 6As shown, each dredging assembly 8 comprises a blocking plate 801 located inside the ventilation pipe 1032, a vertical rod 802 welded at the top of the blocking plate 801, the top of the vertical rod 802 extending to the outside through the ventilation pipe 1032, a worm gear 803 fixedly sleeved on the outer wall of the top end of the vertical rod 802, a worm 804 meshingly connected with one side of the worm gear 803, a connecting rod 8041 fixedly connected at both ends of the worm 804, a spur gear 807 fixedly sleeved on the outer wall of one connecting rod 8041, a rack matched with the spur gear 807 being installed on one side hole wall of the perforated hole 201 through screws, sealing rubber being bonded on the outer ring wall of the blocking plate 801, an installation block 805 being fixedly connected on the outer wall of the vertical pipe 103 at the worm 804, the other connecting rod 8041 being rotatably connected with the installation block 805, an inclined support frame 806 being fixedly connected on the outer wall of the ventilation pipe 1032, the end of the support frame 806 being sleeved on the connecting rod 8041;

[0047] The hole diameter of each ventilation hole 1031 is smaller than the pipe diameter of the ventilation pipe 1032, the upper surfaces of the two top plates 301 are both fixedly provided with an installation plate 302 through screws, and the two installation plates 302 are both fixedly provided with a fan 303 through screws, the output ports of each fan 303 are communicated with the two vertical pipes 103 through a gas supply pipe 304, and a plurality of exhaust holes 202 are formed in the upper surface of the lifting plate 2 close to the long edges.

[0048] In the lifting process of the lifting plate 2, the rack in the perforated hole 201 is in contact with the spur gear 807 of the dredging assembly 8 corresponding to the first ventilation pipe 1032, the rack is meshed with the spur gear 807 in the lifting process of the lifting plate 2, the spur gear 807 is driven to rotate clockwise, the spur gear 807 drives the worm 804 to rotate synchronously through the connecting rod 8041, the worm 804 drives the worm gear 803 to rotate, the vertical rod 802 drives the blocking plate 801 connected at the bottom to rotate, the dredging of the ventilation pipe 1032 is realized, at this time, the fan 303 of the top plate 301 is switched to high-speed mode, the air supply amount to the vertical pipe 103 is increased, the airflow enters the cultivation box 102 through the ventilation hole 1031 and the dredged ventilation pipe 1032 at the same time, and then is discharged through the exhaust hole 202 of the lifting plate 2, forming the airflow circulation of the down-in and up-out, reducing the humidity in the box and supplementing fresh air, and reducing the risk of disease in the tillering stage.

[0049] The working principle of the present application is as follows:

[0050] Wheat seeds are sown in the substrate in the cultivation frame 1021. After adjusting the distance between the cultivation frames 1021 by sliding along the crossbar with the lap joint plate 1022, the light-transmitting film 4 is closed, i.e. the counterweight 401 is adsorbed to the bottom plate 1, forming a sealed cultivation area. At this time, the lifting plate 2 is at the initial low position, and the laser ranging sensor 205 on the lower surface thereof detects the initial height of the seedlings. At this time, the light-transmitting film 4 is in a semi-unfolded state under the action of the winding assembly 7, ensuring that the cultivation box 102 is closed on four sides and maintaining the initial temperature and humidity; the blocking plate 801 of the dredging assembly 8 is closed in the initial state to block all the ventilation pipes 1032, and only the two ventilation holes 1031 at the lower part of the vertical pipe 103 are in a ventilation state, meeting the low ventilation requirement of the wheat seedlings in the seedling stage; the double-shaft motor 601 of the lifting assembly 6 is in a standby state, the steel wire rope 604 is kept tensioned to fix the position of the lifting plate 2, the serpentine liquid supply pipe 203 is in fluent connection with the hose of the liquid supply tank, and the fluorescent lamp 204 is automatically started and stopped according to the set illumination time;

[0051] After the wheat seeds germinate and enter the seedling stage, the height of the seedlings gradually increases, and the laser ranging sensor 205 on the lower surface of the lifting plate 2 detects the height of the seedlings in real time. According to the preset parameters in the seedling stage, the core controller regularly instructs the nozzle 2031 of the serpentine liquid supply pipe 203 to open, the nutrient solution is transported to the serpentine liquid supply pipe 203 through the hose of the liquid supply tank, and is uniformly sprayed to the surface of the substrate in the cultivation frame 1021 through the nozzle 2031, meeting the low nutrient requirement of the seedlings in the seedling stage. In this stage, the dredging assembly 8 is not triggered, the ventilation pipe 1032 is still blocked by the blocking plate 801, and only airflow is delivered to the vertical pipe 103 by the fan 303 in the low-speed mode and discharged from the ventilation hole 1031, maintaining the humidity in the appropriate range;

[0052] As the wheat grows, the height of the seedlings increases significantly after entering the jointing stage. When the laser ranging sensor 205 detects that the distance between the top end and the lifting plate 2 is equal to or less than the threshold value of 10 cm, the sensor transmits a signal to the core controller. When the core controller starts the lifting assembly 6 and controls the lifting plate 2 to move upward, the double-shaft motor 601 starts and rotates the winding rollers 602 on both sides through the two output ends, winding the steel wire rope 604. The wound steel wire rope 604 pulls the lifting plate 2. Since the lifting plate 2 is slidably sleeved on the four vertical pipes 103, the lifting plate 2 vertically rises along the vertical pipes 103, synchronously driving the serpentine liquid supply pipe 203, the fluorescent lamp 204, the laser ranging sensor 205, and the winding assembly 7 to move upward;

[0053] When the lifting plate 2 moves upward, the L-shaped support plate 701 fixed on the surface of the lifting plate 2 synchronously drives the winding assembly 7 to move upward. Since the meshing gears 703 at both ends of the winding roller 702 are always engaged with the internal spline 1011 of the L-shaped vertical plate 101, the winding roller 702 rolls along the internal spline 1011 and rotates counterclockwise during the upward movement, gradually releasing the wound light-transmitting film 4. The weight block 401 at the bottom end of the film slowly rises as the film unwinds, and its two ends are in sliding contact with the L-shaped vertical plate 101 to keep the film flat. At the same time, the magnet on the lower surface of the weight block 401 is always magnetically attracted to the iron sheet of the bottom plate 1, ensuring that the film always covers the four sides of the cultivation box 102,

[0054] At the same time, the rack in the perforation 201 is in contact with the straight gear 807 of the first ventilation pipe 1032 corresponding to the dredging assembly 8. The rack is engaged with the straight gear 807 as the lifting plate 2 moves upward, driving the straight gear 807 to rotate clockwise. The straight gear 807 drives the worm 804 to rotate synchronously through the connecting rod 8041, and the worm 804 drives the worm wheel 803 to rotate, so that the vertical rod 802 drives the blocking plate 801 connected at the bottom to rotate, realizing the dredging of the ventilation pipe 1032. At this time, the fan 303 of the top plate 301 switches to high-speed mode, increasing the air supply to the vertical pipe 103. The airflow enters the cultivation box 102 through the ventilation hole 1031 and the dredged ventilation pipe 1032 at the same time, and is then discharged through the exhaust hole 202 of the lifting plate 2, forming a downward and upward airflow circulation, reducing the humidity in the box and supplementing fresh air, reducing the risk of disease during tillering. As the seedlings continue to grow, the lifting plate 2 continues to move upward, and the rack is sequentially engaged with the straight gears 807 of the subsequent ventilation pipes 1032, gradually opening more ventilation pipes 1032 to increase the ventilation volume in the box.

[0055] Until the cultivation of wheat seedlings is completed, the operator moves the weight block 401 upward so that the weight block 401 is separated from the bottom plate 1, facilitating the removal of the cultivation frame 1021 from the cultivation box 102 for seedling unpotting.

[0056] Although embodiments of the present application have been shown and described, the specific embodiments are merely illustrative of the present application, and are not intended to limit the present application. The specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations of the embodiments without creative contribution after reading the present specification, as long as they are within the scope of the claims of the present application.

Claims

1. A smart agricultural plant seedling cultivation device, comprising a base plate (1), a lifting plate (2), and an adjustment mechanism (5), wherein a cultivation box (102) is fixed on the upper surface of the base plate (1), and multiple cultivation frames (1021) are slidably installed at the opening of the cultivation box (102), and L-shaped vertical plates (101) are fixed at the four corners of the upper surface of the base plate (1), and vertical pipes (103) are fixed at the four corners of the L-shaped vertical plates (101) on the upper surface of the base plate (1), characterized in that, A horizontal plate (3) is provided above the lifting plate (2). A top plate (301) is fixed on both sides of the horizontal plate (3). The two ends of the lower surface of the two top plates (301) are fixedly connected to the top of the corresponding two vertical pipes (103). A light-transmitting film (4) is provided on all four sides of the cultivation box (102) and between the four L-shaped vertical plates (101). The four vertical pipes (103) facing the outer wall of the cultivation box (102) are provided with two ventilation holes (1031) and four ventilation pipes (1032) from bottom to top. A through hole (201) is provided at each of the four corners of the lifting plate (2). Each through hole (201) is slidably sleeved on the vertical pipe (103). The adjustment mechanism (5) consists of a lifting component (6), a winding component (7), and a clearing component (8). The lifting component (6) is set on the horizontal plate (3) and is used to control the lifting plate (2) to move upward according to the wheat growth height. The winding component (7) has four sets, which respectively control the corresponding light-transmitting film (4) to follow the movement of the lifting plate (2) to perform winding and unwinding operations. The clearing component (8) has several sets, which are respectively installed on the ventilation pipe (1032) and follow the movement of the lifting plate (2) to trigger the ventilation pipe (1032) to clear, gradually increasing the ventilation demand according to the different growth stages of wheat. Each of the unblocking components (8) includes a sealing plate (801) located inside the ventilation duct (1032). A vertical rod (802) is welded to the top of the sealing plate (801). The top of the vertical rod (802) extends through the ventilation duct (1032) to the outside. A worm gear (803) is fixedly sleeved on the outer wall of the top end of the vertical rod (802). A worm (804) is meshed with one side of the tooth surface of the worm gear (803). Connecting rods (8041) are fixed at both ends of the worm (804). One of the connecting rods (8041) A spur gear (807) is fixedly sleeved on the outer wall of the perforation (201). A rack that meshes with the spur gear (807) is installed on one side of the hole wall of the perforation (201) by screws. Sealing rubber is bonded to the outer ring wall of the sealing plate (801). An installation block (805) is fixed on the outer wall of the vertical pipe (103) at the worm gear (804). Another connecting rod (8041) is rotatably connected to the installation block (805). An inclined support frame (806) is fixed on the outer wall of the ventilation pipe (1032). The end of the support frame (806) is sleeved on the connecting rod (8041). The diameter of each ventilation hole (1031) is smaller than the diameter of the ventilation pipe (1032). A mounting plate (302) is fixed to the center of the upper surface of each of the two top plates (301) by screws. A fan (303) is fixed to each of the two mounting plates (302) by screws. The output port of each fan (303) is connected to the two vertical pipes (103) through an air supply pipe (304). Multiple exhaust holes (202) are opened on the upper surface of the lifting plate (2) near the long side.

2. The intelligent agricultural plant seedling cultivation device according to claim 1, characterized in that, The lifting assembly (6) includes a dual-axis motor (601). The base of the dual-axis motor (601) is fixedly connected to the center of the upper surface of the horizontal plate (3) by screws. Both output ends of the dual-axis motor (601) are fixedly connected to rope rollers (602). Steel wire ropes (604) are wound on both rope rollers (602). The ends of the two steel wire ropes (604) pass through the horizontal plate (3) and are bolted to the upper surface of the lifting plate (2). The upper surface of the horizontal plate (3) is provided with a frame plate (603) at the ends of the two rope rollers (602). The ends of the two rope rollers (602) are rotatably connected to the frame plate (603) through shafts. The bottom ends of the two frame plates (603) are fixed to the horizontal plate (3) by screws.

3. The intelligent agricultural plant seedling cultivation device according to claim 1, characterized in that, Each of the winding components (7) includes a film winding roller (702), and meshing gears (703) are fixedly sleeved on the outer walls of both ends of the film winding roller (702). Each of the L-shaped vertical plates (101) has vertical inner teeth (1011) on the two plates near the cultivation box (102). The tooth surfaces of the two meshing gears (703) are meshed with the corresponding inner teeth (1011). The light-transmitting film (4) is wound on the film winding roller (702). L-shaped support plates (701) are sleeved on the outer walls of both ends of the film winding roller (702) between the light-transmitting film (4) and the meshing gears (703). One end of each of the two L-shaped support plates (701) is fixed with screws on the upper surface of the lifting plate (2).

4. The intelligent agricultural plant seedling cultivation device according to claim 1, characterized in that, Each of the light-transmitting films (4) has a counterweight (401) fixed at its bottom end. Both ends of each counterweight (401) are in sliding contact with the corresponding L-shaped vertical plate (101). A magnet is embedded in the lower surface of each counterweight (401). An iron sheet is embedded in the upper surface of the base plate (1) at the magnet.

5. The intelligent agricultural plant seedling cultivation device according to claim 1, characterized in that, The lower surface of the lifting plate (2) is fixed with a serpentine liquid supply pipe (203) by a mounting bracket. The inlet pipe of the serpentine liquid supply pipe (203) passes through the lifting plate (2) and is connected to the liquid supply tank through a hose. Several nozzles (2031) are evenly installed on the lower surface of the serpentine liquid supply pipe (203).

6. The intelligent agricultural plant seedling cultivation device according to claim 5, characterized in that, Multiple fluorescent lamps (204) are installed on the lower surface of the lifting plate (2) at the intervals of the serpentine liquid supply pipe (203). Laser rangefinders (205) are installed on the lower surface of the lifting plate (2) near the perforation (201) and at the center.

7. The intelligent agricultural plant seedling cultivation device according to claim 1, characterized in that, Both sides of the multiple cultivation frames (1021) are integrally provided with L-shaped overlapping plates (1022), the overlapping plates (1022) slide in contact with the opening wall of the cultivation box (102), the cultivation box (102) is symmetrically fixed with crossbars inside, and the bottom of the multiple cultivation frames (1021) are in contact with the crossbars.

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