Intelligent light-temperature-water-fertilizer coordinated regulation and control device for forest seedling culture

Abstract

The invention is applicable to the technical field of seedling cultivation, and provides an intelligent light-temperature-water-fertilizer coordinated regulation and control device for forest seedling cultivation, which comprises a light environment regulation and control module, a temperature regulation and control module, a water and fertilizer supply module, a distance regulation module, a seedling cultivation frame, a transverse support, a seedling cultivation tray, a seedling cultivation box and a drip irrigation mechanism, the distance adjusting module is composed of an adjusting block, a guide column, a distance adjusting mechanism and a position limiting mechanism. The position limiting mechanism can finish accurate position limitation of all the seedling raising boxes, so that the plant spacing is always kept constant in the growth process of the seedlings, and the interference problems of branch and leaf staggering and root system winding in the growth process of adjacent forest seedlings are effectively avoided; the distance adjusting mechanism can achieve equal increase or equal decrease of the distance between the seedling raising boxes on the adjacent adjusting blocks, the plant spacing requirements of forest seedlings in different growth stages are accurately met, the positions of the seedling raising boxes do not need to be adjusted one by one, the problem of uneven plant spacing caused by manual adjustment one by one is solved, and the consistency of seedling growth space is ensured.

Description

Technical Field

[0001] This invention belongs to the field of seedling cultivation technology, and in particular relates to an intelligent light, temperature, water and fertilizer synergistic regulation device for forest tree seedling cultivation. Background Technology

[0002] Tree seedling cultivation is a fundamental link in the development of the forestry industry. The light, temperature, water and fertilizer conditions of the seedling environment and the control of seedling spacing directly affect the survival rate, uniformity of growth and quality of tree seedlings. In order to improve seedling efficiency and standardization, intelligent light, temperature, water and fertilizer coordinated control device has become an important application equipment in the field of tree seedling cultivation. This type of device integrates functions such as light environment control, temperature control, precise water and fertilizer supply and seedling spacing adjustment, and provides a suitable growth environment for the entire growth cycle of tree seedlings through multi-module collaborative work.

[0003] The existing control device mainly consists of a placement plate, support plate, water storage tank, high-pressure water pump, main water pipe, branch water pipes, electric valves, nozzles, seedling trays, humidity probes, humidity detectors, and a controller. The humidity probes detect the soil moisture content in the seedling trays, and the humidity detector transmits the data to the controller. When the moisture content falls below a preset threshold, the controller opens the electric valves, and water from the storage tank is pumped through the high-pressure water pump to the main water pipe. From there, water is sprayed into the seedling trays through the nozzles in the branch water pipes, achieving automatic basic water and fertilizer supply for seedling cultivation and completing the water replenishment operation for forest seedlings. However, the existing device still has certain limitations in practical applications:

[0004] First, the seedling trays in the existing device are designed with a fixed arrangement, which makes it impossible to adjust the spacing between seedlings according to the space requirements of different growth stages. In the later stages of seedling growth, interference problems such as intertwined branches and roots are likely to occur, causing fierce competition for nutrients and light among seedlings, which directly affects the healthy growth of seedlings.

[0005] Secondly, existing seedling trays are simply placed on a board, which can easily shift or deviate due to external collisions, vibrations, or other factors, resulting in disordered plant spacing. This requires frequent manual correction of the seedling trays, which significantly increases the maintenance costs in the later stages of seedling cultivation. Furthermore, manual correction can easily lead to uneven plant spacing, reducing the uniformity of seedling growth.

[0006] Therefore, in view of the above situation, there is an urgent need to develop an intelligent light, temperature, water and fertilizer coordinated regulation device for forest seedling cultivation to overcome the shortcomings in current practical applications. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an intelligent light, temperature, water and fertilizer coordinated regulation device for forest seedling cultivation, so as to solve the problems in the background technology mentioned above.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A smart light, temperature, water, and fertilizer synergistic control device for forest tree seedling cultivation includes a light environment control module, a temperature control module, a water and fertilizer supply module, and a spacing adjustment module. The light environment control module and the temperature control module are both installed on the seedling rack. The water and fertilizer supply module is integrated and installed on the outer end of the seedling rack. Horizontal supports are distributed vertically at equal intervals on the seedling rack. Seedling trays are horizontally installed on the horizontal supports. A spacing adjustment module is installed in each seedling tray. Several seedling boxes are evenly installed on the spacing adjustment module through support brackets. Drip irrigation mechanisms are installed on the horizontal supports on both sides of the same seedling tray. The inlet end of the drip irrigation mechanism is sealed and connected to the outlet end of the water and fertilizer supply module. The drip irrigation end of the drip irrigation mechanism is suspended directly above each seedling box.

[0010] The spacing adjustment module consists of adjustment blocks, guide columns, a spacing adjustment mechanism, and a position limiting mechanism. The guide columns are fixed inside the seedling tray. Several adjustment blocks are slidably installed on the guide columns. The adjustment blocks are evenly arranged along the length of the guide columns, and each adjustment block has a support bracket fixed to its top. The top of the support bracket is snapped into the bottom of the seedling tray. The spacing adjustment mechanism consists of an adjustment screw, an adjustment knob, and an equidistant adjustment component.

[0011] The adjusting screw is horizontally rotatably mounted on the seedling tray and parallel to the guide post. One end of the adjusting screw passes through the side wall of the seedling tray and extends outward. An adjusting knob is installed on the extended end of the adjusting screw. The adjusting screw is threadedly connected to an adjusting block located at the first end of the guide post. One end of the equidistant adjusting component is hinged to the bottom of an adjusting block located at the first end of the guide post. The other end of the equidistant adjusting component is hinged to the bottom of the remaining adjusting blocks and the inner wall of the seedling tray on the side away from the adjusting knob. One end of the position limiting mechanism is fixed to the side wall of an adjusting block located at the first end of the guide post. The other end of the position limiting mechanism is installed on the inner wall of the bottom of the seedling tray.

[0012] As a further technical solution of the present invention, the equidistant adjustment assembly includes a front rotating rod, a rear rotating rod, a middle rotating rod, and a hinge seat. The middle part of the front rotating rod is rotatably mounted on the bottom of the adjustment block located at the front end of the guide column. The middle part of the rear rotating rod is rotatably mounted on the bottom of the adjustment block located at the end of the guide column. One end of the rear rotating rod is hinged to the inner wall of the seedling tray through the hinge seat. The middle part of the middle rotating rod is rotatably mounted on the bottom of the adjustment block located between the front and rear ends of the guide column. The middle rotating rod on the adjustment block near the front end of the guide column is rotatably connected to one end of the front rotating rod, and the middle rotating rod on the adjustment block near the rear end of the guide column is rotatably connected to the other end of the rear rotating rod.

[0013] As a further technical solution of the present invention, the position limiting mechanism includes a limiting plate, a limiting seat, a limiting component, and a locking component. The limiting plate is fixed on the inner wall of the bottom of the seedling tray along the layout trajectory of the guide post. The limiting seat is horizontally slidably installed on the limiting plate. The limiting seat is fixed on the side wall of the adjusting block located at the front end of the guide post. The limiting plate has limiting grooves equidistantly opened along its length direction to cooperate with the limiting component. The limiting component is vertically slidably installed on the limiting seat. The locking component is horizontally slidably installed on the limiting seat. Both side walls of the limiting component are locked with the locking component.

[0014] As a further technical solution of the present invention, the limiting component includes a limiting block, a locking strip, a limiting slide post, a limiting baffle, and a limiting spring. The limiting block is vertically installed in the limiting seat. A through hole for the adjusting screw to pass through is opened in the middle of the limiting block. The bottom of the limiting block cooperates with the limiting groove. Locking strips that engage with the locking component are symmetrically fixed on the two side walls of the limiting block. A limiting slide post that slides with the top of the limiting seat is vertically fixed on the top of the limiting block. A limiting baffle is fixed on the top of the limiting slide post. A limiting spring is installed between the limiting baffle and the top of the limiting seat.

[0015] As a further technical solution of the present invention, the two locking strips located on the same side of the limiting block are provided with arc-shaped positioning grooves on their end faces that are close to each other. The arc-shaped positioning grooves cooperate with the locking components, and a locking groove that engages with the locking components is provided on one side of the arc-shaped positioning grooves.

[0016] As a further technical solution of the present invention, the engaging assembly includes an engaging slide post, an engaging baffle, an engaging spring, and a locking strip. The engaging slide post is horizontally slidably mounted on the limiting seat and located on both sides of the limiting block. The engaging slide post cooperates with the arc-shaped positioning groove. An engaging baffle is fixed to the ends of both sides of the engaging slide post. An engaging spring is installed between the engaging baffle and the outer wall of the limiting block. A locking strip that cooperates with the locking groove is axially fixed to the outer wall of the middle part of the engaging slide post.

[0017] As a further technical solution of the present invention, the card strip is a T-shaped strip structure, the card slot is a T-shaped groove structure adapted to the shape of the card strip, and the length of the card strip is less than the vertical distance between it and the limiting seat on the nearest side.

[0018] As a further technical solution of the present invention, the drip irrigation mechanism includes a drip tube, a cleaning component, and a control component. The drip tube is horizontally placed above the seedling tray and connected to the cleaning component. Drip holes are evenly distributed at the bottom of the drip tube. One end of the drip tube is connected to the water and fertilizer supply module. A water level monitoring sensor is installed on the inner wall of the drip tube. The cleaning component is installed on a horizontal support. The output end of the cleaning component slides vertically with the drip holes on the drip tube. Both ends of the cleaning component extend outside the seedling rack and are connected to the control component.

[0019] As a further technical solution of the present invention, the cleaning assembly includes a cleaning seat, a mounting groove, a cleaning plate, a return spring, a cleaning needle, and a linkage shaft. The cleaning seat is installed on the horizontal supports on both sides of the same seedling tray, and a drip tube is installed between the two cleaning seats. The cleaning seat has a mounting groove for vertical sliding of the cleaning plate. The cleaning plate is located directly above the drip tube. The bottom of the cleaning plate is fixed with cleaning needles at equal intervals. Both ends of the cleaning plate are connected to the inner wall of the mounting groove through the return spring, and both ends of the cleaning plate are horizontally fixed with a linkage shaft. One end of the linkage shaft extends outside the seedling rack and is connected to the control assembly. One end of the cleaning needle is set as a pointed cone and vertically engages with the drip hole on the drip tube.

[0020] As a further technical solution of the present invention, the control component includes a control plate, a control support and a control handle. The control plate is vertically installed on the outside of the seedling rack. A control support connected to the linkage shaft is fixed on one side of the control plate, and a U-shaped control handle is fixed on the front of the control plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The light environment control module can precisely adapt to the differentiated light needs of different seedling areas on the seedling tray by changing the light intensity and illumination range, so as to achieve precise zoned control of the light environment of the entire seedling tray. The temperature control module integrates temperature detection and active temperature adjustment functions, which can collect the ambient temperature in the seedling area in real time, and adjust the temperature of the seedling area in a timely manner according to the detection data, so as to adapt to the temperature needs of different seedling areas on the seedling tray and achieve real-time closed-loop control of the temperature of the seedling area.

[0023] The position limiting mechanism can precisely limit the position of all seedling boxes in the seedling tray, ensuring that the seedling boxes are always in a stable and stationary state, and are not easily displaced or shifted due to external collisions, vibrations, or other factors. This ensures that the spacing between seedlings remains constant throughout the seedling growth process, effectively preventing interference problems such as intertwined branches and roots of seedlings in adjacent seedling boxes during growth. This guarantees independent growth space for seedlings and reduces the maintenance costs in the later stages of seedling cultivation. The spacing adjustment mechanism can increase or decrease the distance between seedling boxes on adjacent adjustment blocks equally, precisely adapting to the spacing requirements of seedlings at different growth stages. There is no need to adjust the position of each seedling box individually, which greatly reduces the intensity of manual adjustment. Moreover, the adjustment accuracy is guaranteed by the screw pitch and the equal spacing adjustment component structure, avoiding the problem of uneven spacing caused by manual adjustment, ensuring the consistency of seedling growth space, and improving the uniformity of seedling growth.

[0024] Furthermore, each seedling box is an independent seedling unit, which, together with the adjustable plant spacing, can effectively prevent the branches and leaves of adjacent seedlings from intertwining or the roots from becoming entangled, reduce the competition for nutrients and light among seedlings, and at the same time reduce the probability of the spread of diseases and pests among seedlings, ensuring the healthy growth of seedlings and improving the overall quality of seedlings.

[0025] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0026] Figure 1 The front view of the intelligent light, temperature, water and fertilizer synergistic regulation device for forest seedling cultivation provided in an embodiment of the present invention.

[0027] Figure 2 The side view of the structure of the intelligent light, temperature, water and fertilizer coordinated regulation device for forest seedling cultivation provided in an embodiment of the present invention.

[0028] Figure 3 A side view of the internal structure of the control device provided in an embodiment of the present invention.

[0029] Figure 4 for Figure 3 A top view of the seedling tray and its internal structure.

[0030] Figure 5 for Figure 4 A schematic diagram of the structure of the seedling box, adjusting block, spacing adjustment mechanism and position limiting mechanism.

[0031] Figure 6 for Figure 5 A schematic diagram of the structure of the seedling box, adjusting block, and spacing adjustment mechanism.

[0032] Figure 7 for Figure 6 A bottom view of the structure of the seedling box, adjusting block, and spacing adjustment mechanism.

[0033] Figure 8 for Figure 5 Enlarged view of the mid-position limiting mechanism.

[0034] Figure 9 for Figure 8 Structural cross-sectional view of the middle limiting seat, limiting component and engaging component.

[0035] Figure 10 for Figure 8 Exploded view of the structure of the middle limiting seat, limiting component and engaging component.

[0036] Figure 11 for Figure 3 A schematic diagram of the structure of the dropper, cleaning assembly, and control assembly.

[0037] Figure 12 for Figure 11 A top view of the exploded component structure in the middle.

[0038] Reference numerals: 100-Seedling rack, 110-Horizontal support, 200-Seedling tray, 300-Drip tube, 301-Drip hole, 310-Cleaning assembly, 311-Cleaning seat, 312-Mounting slot, 313-Cleaning plate, 314-Return spring, 315-Cleaning needle, 316-Linkage shaft, 320-Control assembly, 321-Control board, 322-Control support, 323-Control handle, 400-Seedling box, 410-Support bracket, 500-Adjusting block, 510-Guide post, 600-Spacing adjustment mechanism, 610-Adjusting screw, 611-Adjusting knob, 62 0-Equal distance adjustment component, 621-Front rotating rod, 622-Rear rotating rod, 623-Middle rotating rod, 624-Hinge seat, 700-Position limiting mechanism, 710-Limiting plate, 711-Limiting groove, 720-Limiting seat, 730-Limiting component, 731-Limiting block, 732-Through hole, 733-Clamping strip, 734-Limiting slide column, 735-Limiting baffle, 736-Limiting spring, 737-Arc-shaped positioning groove, 738-Clamping groove, 740-Clamping component, 741-Clamping slide column, 742-Clamping baffle, 743-Clamping spring, 744-Clamping strip. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0041] like Figures 1 to 12As shown in the figure, an intelligent light, temperature, water, and fertilizer synergistic control device for forest seedling cultivation, provided as an embodiment of the present invention, includes a light environment control module, a temperature control module, a water and fertilizer supply module, and a spacing adjustment module. The light environment control module and the temperature control module are both installed on the seedling rack 100 and are arranged corresponding to the seedling layers on the seedling rack 100. The water and fertilizer supply module is integrated and installed on the outer end of the seedling rack 100 and is arranged sideways to match the seedling layers on the seedling rack 100. Horizontal supports 110 are equidistantly distributed vertically on the seedling rack 100, and seedling trays 200 are horizontally installed on the horizontal supports 110. The light environment control module and the temperature control module are both located above the seedling trays 200. The light environment control module can precisely adapt to the differentiated light requirements of different seedling areas on the seedling trays 200 by changing the light intensity and irradiation range, thereby realizing the optimal light control for the seedling trays 200. The system features precise zoned control of the overall light environment. The temperature control module integrates temperature detection and active temperature adjustment, enabling real-time acquisition of the ambient temperature within the seedling area. Based on the detected data, it adjusts the temperature of the seedling area accordingly, adapting to the temperature requirements of different locations within the seedling tray 200 and achieving real-time closed-loop temperature control. A spacing adjustment module is installed within the seedling tray 200, on which several seedling boxes 400 are evenly mounted via support brackets 410. These seedling boxes 400 are arranged in a straight line within the seedling tray 200, forming independent seedling units. Drip irrigation mechanisms are installed on the horizontal supports 110 on both sides of the same seedling tray 200. The inlet of the drip irrigation mechanism is sealed and connected to the outlet of the water and fertilizer supply module. The drip irrigation outlet is suspended directly above each seedling box 400, and its outlet position precisely corresponds to the seedling substrate in the seedling box 400.

[0042] The spacing adjustment module consists of an adjustment block 500, a guide post 510, a spacing adjustment mechanism 600, and a position limiting mechanism 700. The guide post 510 is fixed in the seedling tray 200 in a horizontal through manner. Several adjustment blocks 500 are slidably installed on the guide post 510. The adjustment blocks 500 are evenly arranged along the length of the guide post 510, and each of the adjustment blocks 500 has a support bracket 410 fixed to its top. The top of the support bracket 410 is snapped and fixed to the bottom of the seedling box 400. The spacing adjustment mechanism 600 consists of an adjustment screw 610, an adjustment knob 611, and an equidistant adjustment component 620.

[0043] The adjusting screw 610 is horizontally rotatably mounted on the seedling tray 200 and parallel to the guide post 510. One end of the adjusting screw 610 passes through the side wall of the seedling tray 200 and extends outward. An adjusting knob 611 is installed on the extended end of the adjusting screw 610. The adjusting screw 610 is threadedly connected to an adjusting block 500 located at the head end of the guide post 510. One end of the equidistant adjusting component 620 is hinged to the bottom of an adjusting block 500 located at the head end of the guide post 510. The other end of the equidistant adjusting component 620 is hinged to the bottom of the remaining adjusting blocks 500 and the inner wall of the seedling tray 200 on the side away from the adjusting knob 611, thereby realizing the linkage connection of several adjusting blocks 500. One end of the position limiting mechanism 700 is fixed to the side wall of an adjusting block 500 located at the head end of the guide post 510. The other end of the position limiting mechanism 700 is installed on the inner wall of the bottom of the seedling tray 200.

[0044] In the initial state, the two ends of the position limiting mechanism 700 are locked together and limit each other, and drive an adjustment block 500 connected to it to remain relatively stationary with the seedling tray 200, thus locking the position of the adjustment block 500. The adjustment block 500, through the linkage of the equidistant adjustment component 620, restricts the displacement of all remaining adjustment blocks 500, so that several adjustment blocks 500 remain relatively stationary with the seedling tray 200. This achieves precise position limiting of several seedling boxes 400 in the seedling tray 200, ensuring that the seedling boxes 400 are always in a stable and stationary state, and are not easily displaced or shifted due to external collisions, vibrations, or other factors. This ensures that the spacing between seedlings remains constant during seedling growth, effectively avoiding interference problems such as intertwined branches and roots of forest seedlings in adjacent seedling boxes 400 during growth, ensuring independent growth space for seedlings, and reducing the maintenance costs in the later stages of seedling cultivation.

[0045] When the spacing between seedlings needs to be increased, the position restriction mechanism 700 first releases the position restriction on a single adjusting block 500, so that all adjusting blocks 500 in the seedling tray 200 are in an unrestrained free state. The adjusting knob 611 drives the adjusting screw 610 to rotate. The adjusting screw 610, through rotation and cooperation with the guide post 510, can drive an adjusting block 500 connected to it to move horizontally within the seedling tray 200. This adjusting block 500, through the linkage of the equidistant adjusting component 620, can drive the remaining adjusting blocks 500 to move synchronously and equidistantly, thereby achieving equal increase or decrease in the distance between seedling boxes 400 on adjacent adjusting blocks 500, accurately adapting to the spacing requirements of seedlings at different growth stages. There is no need to adjust the position of each seedling box 400 individually, greatly reducing the intensity of manual adjustment. Moreover, the adjustment accuracy is guaranteed by the screw pitch and the structure of the equidistant adjusting component 620, avoiding the problem of uneven spacing caused by manual adjustment, ensuring the consistency of seedling growth space, and improving the uniformity of seedling growth.

[0046] Furthermore, each seedling box (400 units) is an independent seedling unit. With adjustable plant spacing, it can effectively prevent the branches and leaves of adjacent seedlings from intertwining or the roots from becoming entangled, reducing competition for nutrients and light among seedlings. At the same time, it reduces the probability of the spread of pests and diseases among seedlings, ensuring healthy seedling growth and improving the overall quality of seedlings.

[0047] In a preferred embodiment, the light environment control module preferably adopts an upper-level distributed arrangement, which can be composed of seedling supplemental lighting, light stands, and angle adjustment mechanisms. The angle adjustment mechanism can change the angle of the light stands, thereby changing the angle of the seedling supplemental lighting, so that it can effectively illuminate the seedlings in different seedling areas and adapt to the light requirements of different seedling areas. The temperature control module preferably consists of monitoring sensors, temperature and humidity regulators, ventilation fans, and air inlet or outlet ducts. Through the above structure, the temperature in the seedling area can be monitored in real time and the temperature in the seedling area can be adjusted in a timely manner to adapt to the temperature requirements of seedling areas in different locations. The light environment control module and the temperature control module work together to achieve synchronous and precise control of the light and temperature environment of the entire 200-square seedling tray, avoiding the imbalance of the seedling environment caused by misalignment of light and temperature control areas, improving the stability of the seedling environment, promoting the uniform growth of seedlings, and improving the overall survival rate of seedlings.

[0048] like Figures 3 to 7 As shown, in a preferred embodiment of the present invention, the equidistant adjustment assembly 620 includes a front rotating rod 621, a rear rotating rod 622, a middle rotating rod 623, and a hinge seat 624. The middle part of the front rotating rod 621 is rotatably mounted on the bottom of the adjustment block 500 located at the front end of the guide post 510. The middle part of the rear rotating rod 622 is rotatably mounted on the bottom of the adjustment block 500 located at the end of the guide post 510. One end of the rear rotating rod 622 is hinged to the inner wall of the seedling tray 200 through the hinge seat 624. The middle part of the middle rotating rod 623 is rotatably mounted on the bottom of the adjustment block 500 located between the front and rear ends of the guide post 510. The middle rotating rod 623 on the adjustment block 500 near the front end of the guide post 510 is rotatably connected to one end of the front rotating rod 621, and the middle rotating rod 623 on the adjustment block 500 near the rear end of the guide post 510 is rotatably connected to the other end of the rear rotating rod 622.

[0049] When the spacing between seedlings needs to be increased, the position restriction mechanism 700 on individual adjusting blocks 500 is first released, so that all adjusting blocks 500 in the seedling tray 200 are in an unrestrained free state. The adjusting knob 611 drives the adjusting screw 610 to rotate. The adjusting screw 610, through rotation and cooperation with the guide post 510, can drive an adjusting block 500 connected to it to move horizontally within the seedling tray 200. This adjusting block 500 can drive the front rotating rod 621 to move synchronously. The front rotating rod 621, through cooperation with the rear rotating rod 622, ... The combination of the central rod 623 and the hinge seat 624 can drive the remaining adjustment blocks 500 to move synchronously and equidistantly, thereby achieving equal increases or decreases in the distance between the seedling boxes 400 on adjacent adjustment blocks 500. This precisely adapts to the spacing requirements of different growth stages of forest seedlings, eliminating the need to adjust the position of each seedling box 400 individually, significantly reducing the intensity of manual adjustment. Furthermore, the adjustment accuracy is guaranteed by the screw pitch and the equidistant adjustment component 620 structure, avoiding uneven spacing caused by manual adjustment, ensuring the consistency of seedling growth space, and improving the uniformity of seedling growth.

[0050] In a preferred embodiment, the rear rotating rod 622 and the middle rotating rod 623 are of the same length, and the length of the front rotating rod 621 is half the length of the rear rotating rod 622.

[0051] like Figures 3 to 10 As shown in the preferred embodiment of the present invention, the position limiting mechanism 700 includes a limiting plate 710, a limiting seat 720, a limiting component 730, and a locking component 740. The limiting plate 710 is fixed on the inner wall of the bottom of the seedling tray 200 along the layout trajectory of the guide post 510. The limiting seat 720 is horizontally slidably mounted on the limiting plate 710. The limiting seat 720 is fixed on the side wall of the adjusting block 500 located at the front end of the guide post 510. The limiting plate 710 has limiting grooves 711 that cooperate with the limiting component 730 at equal intervals along its length direction. The limiting component 730 is vertically slidably mounted on the limiting seat 720. The locking component 740 is horizontally slidably mounted on the limiting seat 720. Both side walls of the limiting component 730 are locked with the locking component 740.

[0052] The limiting component 730 includes a limiting block 731, a locking strip 733, a limiting slide post 734, a limiting baffle 735, and a limiting spring 736. The limiting block 731 is vertically installed inside the limiting seat 720. A through hole 732 for the adjusting screw 610 to pass through is provided in the middle of the limiting block 731. The bottom of the limiting block 731 cooperates with the limiting groove 711. The locking strips 733 that engage with the locking component 740 are symmetrically fixed on the two side walls of the limiting block 731. The limiting slide post 734 that slides with the top of the limiting seat 720 is vertically fixed on the top of the limiting block 731. The limiting baffle 735 is fixed on the top of the limiting slide post 734. A limiting spring 736 is installed between the limiting baffle 735 and the top of the limiting seat 720.

[0053] Two locking strips 733 located on the same side of the limiting block 731 have arc-shaped positioning grooves 737 on their close end faces. The arc-shaped positioning grooves 737 cooperate with the locking assembly 740. A locking groove 738 that engages with the locking assembly 740 is provided on one side of the arc-shaped positioning grooves 737.

[0054] In its initial state, the engaging component 740 engages with the slot 738 on the engaging strip 733 located on the upper part of the limiting block 731. This engagement of the engaging component 740 with the slot 738 locks the height of the limiting block 731, allowing its bottom to fully and effectively engage with the limiting groove 711 on the limiting plate 710. At this time, the limiting baffle 735 and the limiting seat 720 cooperate to compress the limiting spring 736, placing it in a compressed and stored state. The limiting block 731, by engaging with the limiting groove 711, restricts the horizontal movement of the limiting seat 720, thereby locking the connecting adjusting block 500 and completing the locking of the adjusting block 500. The position of the 00 is locked. The adjustment block 500, through the linkage of the equidistant adjustment component 620, restricts the displacement of all remaining adjustment blocks 500, so that several adjustment blocks 500 are relatively stationary with respect to the seedling tray 200. This achieves precise position restriction of several seedling boxes 400 within the seedling tray 200, ensuring that the seedling boxes 400 are always in a stable and stationary state, and are not easily displaced or shifted due to external collisions, vibrations, or other factors. This ensures that the spacing between seedlings remains constant during seedling growth, effectively avoiding interference problems such as intertwined branches and roots of forest seedlings in adjacent seedling boxes 400 during growth, ensuring independent growth space for seedlings, and reducing the maintenance costs in the later stages of seedling cultivation.

[0055] When the spacing between tree seedlings needs to be increased, the locking component 740 is first driven to move horizontally on the limiting seat 720, thereby releasing its engagement with the locking groove 738. The limiting spring 736, by releasing its own elastic force, can drive the limiting slide 734 to move upward quickly. The limiting slide 734 drives the limiting block 731 to move upward quickly, so that the limiting block 731 can not only release its engagement with the limiting groove 711, making all the adjusting blocks 500 in the seedling tray 200 in an unrestrained free state, but also drive the locking strip 733 at its lower part to move upward quickly to the engagement position with the locking component 740. At this time, the locking component 740 is released, so that it engages with the locking strip 733 at the lower part of the limiting block 731 under the action of its own elastic force, thereby locking the height of the limiting block 731. This ensures that the limiting block 731 will not interfere with the limiting plate 710 during the adjustment of the spacing of the seedling box 400, reducing the adjustment time of the seedling box 400 and improving the ease of use of the control device.

[0056] like Figures 3 to 10 As shown, in a preferred embodiment of the present invention, the engaging assembly 740 includes an engaging slide post 741, an engaging baffle 742, an engaging spring 743, and a locking strip 744. The engaging slide post 741 is horizontally slidably mounted on the limiting seat 720 and located on both sides of the limiting block 731. The engaging slide post 741 cooperates with the arc-shaped positioning groove 737. An engaging baffle 742 is fixed to the ends of both sides of the engaging slide post 741. An engaging spring 743 is installed between the engaging baffle 742 and the outer wall of the limiting block 731. A locking strip 744 that cooperates with the locking groove 738 is axially fixed to the outer wall of the middle part of the engaging slide post 741.

[0057] The card strip 744 preferably adopts a T-shaped strip structure, and the card slot 738 preferably adopts a T-shaped slot structure that matches the shape of the card strip 744. The length of the card strip 744 is less than the vertical distance between it and the adjacent limiting seat 720. This ensures that the card strip 744 will not interfere with the up and down movement of the limiting block 731 after it is separated from the card slot 738.

[0058] In the initial state, the locking slide 741 is engaged with the arc-shaped positioning groove 737 on the upper locking strip 733 of the limiting block 731, and the locking strip 744 on the upper part of the locking slide 741 is engaged with the locking groove 738 on the upper locking strip 733 of the limiting block 731, thus locking the height of the limiting block 731. This allows its bottom to fully and effectively cooperate with the limiting groove 711 on the limiting plate 710, thereby limiting the displacement of all adjusting blocks 500. This keeps several adjusting blocks 500 relatively stationary with respect to the seedling tray 200, thereby achieving precise positional restriction of several seedling boxes 400 within the seedling tray 200. This ensures that the seedling boxes 400 are always in a stable and stationary state, and are not easily displaced or shifted due to external collisions, vibrations, or other factors, ensuring that the plant spacing remains constant during seedling growth.

[0059] When the spacing between tree seedlings needs to be increased, the locking baffle 742 is first pulled, causing the locking slide 741 to move horizontally on the limiting seat 720. The locking slide 741 moves the locking strip 744, thereby releasing the locking strip 744 from the locking groove 738, leaving the limiting block 731 in an unrestrained free state. The limiting spring 736, by releasing its own elastic force, can move the limiting slide 734 upward quickly. The limiting slide 734 moves the limiting block 731 upward quickly, so that the limiting block 731 can not only release its engagement with the limiting groove 711, leaving all the adjusting blocks 500 in the seedling tray 200 in an unrestrained free state, but also move the locking strip 733 below it. The device is quickly moved upwards to engage with the locking slide 741, causing the locking slide 741 to align with the arc-shaped positioning groove 737 on the locking strip 733 at the bottom of the limiting block 731. At this point, the locking baffle 742 is released, and the locking spring 743 moves the locking slide 741 back by releasing its own elastic force. The locking slide 741 then moves the locking strip 744 back, causing the locking strip 744 to engage with the slot 738 on the locking strip 733 at the bottom of the limiting block 731. This locks the height of the limiting block 731 again, ensuring that the limiting block 731 does not interfere with the limiting plate 710 during the adjustment of the spacing of the seedling box 400. This reduces the adjustment time of the seedling box 400 and improves the ease of use of the control device.

[0060] like Figure 2 , Figure 3 , Figure 11 and Figure 12As shown, in a preferred embodiment of the present invention, the drip irrigation mechanism includes a drip tube 300, a cleaning component 310, and a control component 320. The drip tube 300 is horizontally placed above the seedling tray 200 and connected to the cleaning component 310. Drip holes 301 are evenly distributed at the bottom of the drip tube 300. One end of the drip tube 300 is connected to the water and fertilizer supply module. A water level monitoring sensor is installed on the inner wall of the drip tube 300. The cleaning component 310 is installed on the horizontal support 110. The output end of the cleaning component 310 slides vertically with the drip holes 301 on the drip tube 300. Both ends of the cleaning component 310 extend outside the seedling rack 100 and are connected to the control component 320.

[0061] The cleaning assembly 310 includes a cleaning seat 311, a mounting groove 312, a cleaning plate 313, a return spring 314, a cleaning needle 315, and a linkage shaft 316. The cleaning seat 311 is mounted on the horizontal supports 110 on both sides of the same seedling tray 200. A dropper 300 is installed between the two cleaning seats 311. The cleaning seat 311 has a mounting groove 312 for vertical sliding of the cleaning plate 313. The cleaning plate 313 is located directly above the dropper 300. The bottom of the cleaning plate 313 is fixed with cleaning needles 315 at equal intervals. Both ends of the cleaning plate 313 are connected to the inner wall of the mounting groove 312 through the return spring 314. Both ends of the cleaning plate 313 are horizontally fixed with a linkage shaft 316. One end of the linkage shaft 316 extends outside the seedling rack 100 and is connected to the control assembly 320. One end of the cleaning needle 315 is set as a pointed cone and is vertically engaged with the drip hole 301 on the dropper 300.

[0062] The water and fertilizer supply module quantitatively delivers the prepared water and fertilizer mixture into the dripper 300. The water and fertilizer are precisely dripped into the substrate area of ​​the corresponding seedling box 400 through the drip hole 301 of the dripper 300, achieving targeted and quantitative water and fertilizer supply to the forest seedlings. Because the water and fertilizer supply module operates in a constant flow distribution mode, when the water level monitoring sensor in the dripper 300 detects that the water level in the pipe exceeds the preset threshold, it can be determined that there is a blockage problem in the drip hole 301 of the dripper 300. At this time, the control component 320 drives the linkage shaft 316 downward, and the linkage shaft 316 drives the cleaning plate 313 to move vertically downward along the mounting groove 312. When the cleaning plate 313 moves, it simultaneously drives the cleaning needle 315 downward to insert into the drip hole 301 and precisely clear the blockage in the drip hole 301, ensuring that the water and fertilizer in the drip tube 300 can drip normally into the seedling box 400. After clearing, the control component 320 resets, and the cleaning plate 313 drives the cleaning needle 315 upward to disengage from the drip hole 301 under the elastic reset action of the return spring 314. The cleaning component 310 returns to the initial standby state, ensuring that the water and fertilizer drip accurately into the seedling substrate according to the preset amount, avoiding water and fertilizer accumulation and leakage due to blockage, further improving the water and fertilizer utilization rate and reducing the water and fertilizer cost of seedling cultivation.

[0063] Furthermore, through the coordination of the water level monitoring sensor inside the dripper 300 and the constant flow distribution of the water and fertilizer supply module, the blockage of the dripper 301 can be automatically and accurately identified, eliminating the need for manual inspection and troubleshooting. This allows for the timely detection of potential blockages and prevents interruption or insufficient water and fertilizer supply to the seedling box 400 due to blockage of the dripper 301, thus ensuring the continuity of water and fertilizer supply to the seedlings.

[0064] like Figure 2 , Figure 3 , Figure 11 and Figure 12 As shown, in a preferred embodiment of the present invention, the control component 320 includes a control plate 321, a control support 322, and a control handle 323. The control plate 321 is vertically installed on the outside of the seedling rack 100. A control support 322 connected to a linkage shaft 316 is fixed on one side of the control plate 321. A U-shaped control handle 323 is fixed on the front side of the control plate 321.

[0065] When the water level monitoring sensor in the dripper 300 detects that the water level in the pipe exceeds the preset threshold, it can be determined that there is a blockage problem in the drip hole 301 of the dripper 300. At this time, the control handle 323 is operated and moved downward. The control board 321 drives the control support 322 to move downward. The control support 322 drives the linkage shaft 316 downward, so that the cleaning needle 315 is inserted into the drip hole 301 and precisely clears the blockage in the drip hole 301. This ensures that the water and fertilizer in the dripper 300 can drip normally into the seedling box 400, and ensures that the water and fertilizer are accurately dripped into the seedling substrate according to the preset amount. This avoids water and fertilizer accumulation and leakage caused by blockage, further improves the water and fertilizer utilization rate, and reduces the water and fertilizer cost of seedling cultivation.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A forest seedling intelligent light temperature water and fertilizer synergistic regulation device, characterized in that, The utility model provides a kind of seedling raising frame, including light environment control module, temperature control module, water and fertilizer supply module and spacing adjustment module, the light environment control module and temperature control module are installed on seedling raising frame, the water and fertilizer supply module is integrally installed on the outside end of seedling raising frame, seedling raising frame is vertically equidistantly distributed with horizontal support, horizontal installation is carried out in the seedling raising tray on the horizontal support, spacing adjustment module is installed in the seedling raising tray, spacing adjustment module is evenly installed with several seedling boxes by support frame, drip irrigation mechanism is installed on the horizontal support of both sides of the same seedling raising tray, the liquid inlet end of drip irrigation mechanism and the liquid outlet end of water and fertilizer supply module are sealed communication, and drip irrigation end of drip irrigation mechanism is suspended in the just above of each seedling box; The spacing adjustment module is composed of an adjustment block, a guide column, a spacing adjustment mechanism, and a position limiting mechanism. The guide column is fixed in the seedling tray. A plurality of adjustment blocks are slidingly installed on the guide column. The plurality of adjustment blocks are evenly arranged along the length direction of the guide column. The top of each of the plurality of adjustment blocks is fixed with a support frame. The top of the support frame is clamped and fixed with the bottom of the seedling box. The spacing adjustment mechanism is composed of an adjustment screw, an adjustment knob, and an equidistant adjustment assembly. The adjustment screw is horizontally rotatably installed on the seedling tray and parallel to the guide column. One end of the adjustment screw penetrates through the sidewall of the seedling tray and extends outward. The extended end of the adjustment screw is installed with an adjustment knob. The adjustment screw is threadedly connected with one of the adjustment blocks at the front end of the guide column. One end of the equidistant adjustment assembly is hingedly connected with the bottom of one of the adjustment blocks at the front end of the guide column. The other end of the equidistant adjustment assembly is respectively hingedly connected with the bottom of the remaining adjustment blocks and the inner wall of the seedling tray away from the side of the adjustment knob. One end of the position limiting mechanism is fixed on the sidewall of one of the adjustment blocks at the front end of the guide column. The other end of the position limiting mechanism is installed on the inner wall at the bottom of the seedling tray.

2. The intelligent light-temperature-water-fertilizer synergistic regulation and control device for forest seedling raising according to claim 1, characterized in that, The equidistant adjustment assembly includes a front rotating rod, a rear rotating rod, a middle rotating rod, and a hinged seat. The middle part of the front rotating rod is rotatably installed at the bottom of the adjustment block at the front end of the guide column. The middle part of the rear rotating rod is rotatably installed at the bottom of the adjustment block at the end of the guide column. One end of the rear rotating rod is hingedly connected with the inner wall of the seedling tray through the hinged seat. The middle part of the middle rotating rod is rotatably installed at the bottom of the adjustment block between the front end and the end of the guide column. One end of the middle rotating rod on the adjustment block close to the front end of the guide column is rotatably connected with the front rotating rod. The other end of the middle rotating rod on the adjustment block close to the end of the guide column is rotatably connected with the rear rotating rod.

3. The intelligent light-temperature-water-fertilizer synergistic regulation device for forest seedling raising according to claim 1, characterized in that, The position limiting mechanism includes a limiting plate, a limiting seat, a limiting assembly, and a clamping assembly. The limiting plate is fixed on the inner wall at the bottom of the seedling tray along the layout track of the guide column. The limiting plate is slidingly installed with a limiting seat horizontally. The limiting seat is fixed on the sidewall of one of the adjustment blocks at the front end of the guide column. A plurality of limiting grooves are equidistantly formed on the limiting plate along the length direction of the limiting plate and matched with the limiting assembly. The limiting assembly is slidingly installed on the limiting seat vertically. The clamping assembly is slidingly installed on the limiting seat horizontally. The two sidewalls of the limiting assembly are clamped with the clamping assembly.

4. The forest seedling intelligent light, temperature, water and fertilizer synergistic regulation device according to claim 3, characterized in that, The limiting assembly comprises a limiting block, a clamping strip, a limiting slide, a limiting baffle and a limiting spring, the limiting block is vertically installed in the limiting seat, a through hole is formed in the middle of the limiting block for the adjusting screw to pass through, the bottom of the limiting block is matched with the limiting groove, the two side walls of the limiting block are symmetrically fixed with the clamping strips matched with the clamping assembly, the top of the limiting block is vertically fixed with the limiting slide matched with the top of the limiting seat, the top of the limiting slide is fixed with the limiting baffle, and the limiting baffle is installed between the top of the limiting seat and the limiting baffle.

5. The forest seedling intelligent light temperature water and fertilizer synergistic regulation device according to claim 4, characterized in that, The end faces of the two clamping strips located on the same side of the limiting block are symmetrically fixed with the arc-shaped positioning grooves matched with the clamping assembly.

6. The forest seedling intelligent light temperature water and fertilizer synergistic regulation device according to claim 5, characterized in that, The clamping assembly comprises a clamping slide, a clamping baffle, a clamping spring and a clamping strip, the clamping slide is horizontally and slidably installed on the limiting seat and located on the two sides of the limiting block, the clamping slide is matched with the arc-shaped positioning groove, the clamping baffle is fixed on the ends of the clamping slide, the clamping spring is installed between the clamping baffle and the outer wall of the limiting block, and the clamping strip is axially fixed on the outer wall of the middle of the clamping slide and matched with the clamping groove.

7. The forest seedling intelligent light temperature water and fertilizer synergistic regulation device according to claim 6, characterized in that, The clamping strip is a T-shaped strip structure, the clamping groove is a T-shaped groove structure matched with the shape of the clamping strip, and the length of the clamping strip is less than the vertical distance between the clamping strip and the limiting seat on the side close to the clamping strip.

8. The intelligent light-temperature-water-fertilizer synergistic regulation device for forest seedling raising according to claim 1, characterized in that, The drip irrigation mechanism comprises a drip pipe, a cleaning assembly and a control assembly, the drip pipe is horizontally arranged above the seedling tray and connected with the cleaning assembly, the bottom of the drip pipe is equidistantly provided with drip holes, one end of the drip pipe is connected with the water and fertilizer supply module, and a water level monitoring sensor is installed on the inner wall of the drip pipe.

9. The forest seedling intelligent light temperature water and fertilizer synergistic regulation device according to claim 8, characterized in that, The cleaning assembly comprises a cleaning seat, a mounting groove, a cleaning plate, a return spring, a cleaning needle and a linkage shaft, the cleaning seat is installed on the horizontal support on the two sides of the same seedling tray, the drip pipe is installed between the two cleaning seats, the mounting groove is formed in the cleaning seat for the vertical sliding of the cleaning plate, the cleaning plate is located directly above the drip pipe, the bottom of the cleaning plate is equidistantly fixed with the cleaning needles, the two ends of the cleaning plate are connected with the inner wall of the mounting groove through the return springs, the two ends of the cleaning plate are horizontally fixed with the linkage shafts, one end of the linkage shaft extends out of the seedling frame and is connected with the control assembly, and one end of the cleaning needle is provided in a sharp taper and vertically matched with the drip hole on the drip pipe.

10. The forest seedling intelligent light temperature water and fertilizer synergistic regulation device according to claim 9, characterized in that, The control assembly comprises a control plate, a control support and a control handle, the control plate is vertically installed on the outside of the seedling frame, one side of the control plate is fixed with the control support connected with the linkage shaft, and the front surface of the control plate is fixed with the U-shaped control handle.

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