Rosin tree seedling raising device and layered temperature control cultivation method

Abstract

The invention relates to the technical field of forest tree breeding, in particular to a rosin tree seedling raising device and a layered temperature control cultivation method.The rosin tree seedling raising device comprises a device body, the device body is formed by splicing a plurality of seedling raising disc bodies, the distance between two inner disc wall plates is relatively close, and a compact planting space is provided for seedlings; the two inner disc wall plates can slide in the concentric-square-shaped disc body in the reverse direction to force the seedling growing cavity to expand and extend. The inner disc wall plates and the concentric-square-shaped disc body form the seedling growing cavities, the inner disc wall plates are close in the seedling stage, the temperature control mechanism keeps a distance with roots to prevent the roots from being damaged, the driving set drives the inner disc wall plates to slide reversely to expand the cavities in the seedling stage, the cavities are gradually close to the temperature control mechanism, and the inner disc wall plates are heated due to the fact that the distance is reduced, so that the temperature of the seedling growing cavities is increased step by step, and the temperature requirement of saplings is met; meanwhile, the winding spring and the separation belt are adaptively adjusted along with sliding, so that soil in the soil covering cavity enters the seedling culture cavity through the soil falling holes to supplement the substrate, and the saplings can obtain sufficient space and nutrients in all stages.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forest tree breeding, in particular to a pine tree seedling raising device and a hierarchical temperature control cultivation method. BACKGROUND

[0002] In the field of forestry seedling cultivation, pine trees, as an important tree species with economic value and ecological benefits, secrete pine resin which is widely used in the chemical, pharmaceutical and other industries, and at the same time, plays an important role in carbon sequestration, water and soil conservation and other functions in ecological afforestation projects. With the continuous growth of market demand for pine resin raw materials and the increasing demand for the quantity and quality of seedlings in ecological construction, special seedling raising techniques will be used to meet the needs of modern forestry development. Currently, pine tree seedling raising generally uses seedling raising trays to cultivate seedlings. The temperature control structure in the prior art is usually arranged on the outside of the seedling raising tray. During the cultivation process, different temperature requirements exist in the seedling stage and the seedling stage. The unified environmental heating is not convenient for adapting to the growth of seedlings at different stages, which may easily lead to uneven growth of seedlings and poor stress resistance. In addition, in the management of planting space, fixed-specification seedling containers are prone to cause substrate waste during the seedling stage, limited root development during the seedling stage, and insufficient ventilation and light due to dense arrangement of seedlings, which may aggravate the risk of disease and pest breeding and affect the survival rate and growth efficiency of seedlings. Therefore, there is an urgent need for a pine tree seedling raising device and a hierarchical temperature control cultivation method to solve the above problems. SUMMARY

[0003] The present application provides a pine tree seedling raising device and a hierarchical temperature control cultivation method. The device adjusts the space of the seedling cavity by driving the bidirectional screw rod to drive the inner disc wall plate to slide in the opposite direction, realizes hierarchical temperature control by changing the distance between the heat guide plate of the temperature control mechanism and the inner disc wall plate, and automatically supplements soil by the uniform humidification of the humidification mechanism and the cavity separation assembly. The device provides the required space size, temperature environment and stable humidity conditions for the root development and plant growth of seedlings at different growth stages from the seedling stage to the seedling stage of pine trees, thereby solving the problems raised in the background art, i.e. The existing pine tree seedling raising tray uses unified environmental heating on the outside and has fixed container specifications, which cannot meet the temperature requirements at different growth stages, leading to uneven growth of seedlings and poor stress resistance, and causing substrate waste, limited root development, poor ventilation and light, and aggravated disease and pest risk, which affects the survival rate and growth efficiency of seedlings.

[0004] To achieve the above object, one of the objects of the present application is to provide a pine tree seedling device, which comprises a device body formed by splicing a plurality of seedling disc bodies, the seedling disc body comprises an outer disc group, an inner disc group is slidably arranged in the inner disc group, the outer disc group comprises a U-shaped disc body, and the inner disc group comprises two inner disc wall plates; A seedling cavity is formed between the two inner disc wall plates and the U-shaped disc body, a moisturizing mechanism is arranged in the X direction of the U-shaped disc body, the opening of the moisturizing mechanism is located in the seedling cavity, and a temperature control mechanism is arranged in the Y direction of the U-shaped disc body; in the seedling stage of the pine seedling, the distance between the two inner disc wall plates is relatively small, so as to provide a compact planting space for the seedling; in the seedling stage of the pine seedling, the two inner disc wall plates can slide reversely in the U-shaped disc body, so as to force the seedling cavity to expand, thereby providing a wider planting space for the seedling; at the same time, the two inner disc wall plates slide reversely to approach the temperature control mechanism on the same side, thereby providing layered temperature control for different growth stages of the pine seedling.

[0005] In the above technical solution, the space of the seedling cavity is dynamically adjusted through the sliding cooperation of the outer disc group and the inner disc group; the inner disc wall plates are reversely slid by using a bidirectional screw rod, so that the compact space in the seedling stage and the spacious space in the seedling stage are switched as required; and the distance change between the inner disc wall plates and the temperature control mechanism during the sliding of the inner disc wall plates forms layered temperature control, so as to avoid root high-temperature damage and provide adaptive environmental conditions for each growth stage of the pine seedling.

[0006] On this basis, the inner disc group further comprises a soil falling hole formed in the upper end surface of the two inner disc wall plates, a partition cavity assembly is mounted in the inner disc wall plates, the other end of the partition cavity assembly passes through the soil falling hole and is connected with the Y direction inner wall of the U-shaped disc body, a side cavity is formed between the two inner disc wall plates and the Y direction inner wall of the U-shaped disc body, the partition cavity assembly divides the side cavity into a soil covering cavity and a temperature control cavity, and the soil covering cavity is located at the upper end of the temperature control cavity. Two extension ends are fixedly installed on the top of the two inner disc wall plates, and the extension ends are movably sleeved on the surface of the driving group.

[0007] As a further improvement of the technical solution, the partition cavity assembly comprises a winding groove formed in the inner disc wall plate, the opening of the winding groove is connected with the soil falling hole, a middle shaft is arranged in the winding groove, a winding spring is connected with the surface of the middle shaft, the other end of the winding spring is connected with one end of a partition belt, and the other end of the partition belt extends out of the winding groove and is fixedly connected with the inner wall of the U-shaped disc body.

[0008] Specifically, through the cooperation of the cavity separation assembly and the driving group, the automation and stability of substrate replenishment and cavity separation during seedling raising are realized, the falling hole constructs a material channel between the covering soil cavity and the seedling raising cavity, the cavity separation assembly separates the side cavity into an upper covering soil cavity and a lower temperature control cavity, both utilizing the heat conduction plate in the temperature control cavity to stably conduct heat and storing the seedling substrate in the covering soil cavity; when the driving group drives the inner disc wall plate to slide, the winding spring structure in the winding groove winds or releases the separation belt, so that the separation belt continuously separates the cavity in a tensioned state, and at the same time, the soil in the covering soil cavity enters the seedling raising cavity through the falling hole, realizing the automatic replenishment of the substrate, solving the problem of manual soil replenishment in traditional seedling raising, and ensuring that the heat conduction of the temperature control cavity is not disturbed by the soil, providing suitable substrate environment and temperature conditions for different growth stages of seedlings, and improving the efficiency and quality of seedling raising.

[0009] As a further improvement of the technical solution, the opening of the winding groove is respectively provided with a bulldozing plate and an angle positioning block on both sides, the bottom end of the bulldozing plate is attached to the top surface of the separation belt, the bottom of the separation belt is attached to the surface of the angle positioning block, and the inner wall of the temperature control cavity is fixedly provided with a supporting flap, and the bottom of the side of the separation belt away from the winding groove is supported on the surface of the supporting flap. Among them, the bulldozing plate pushes the soil on the separation belt to the falling hole to realize automatic soil replenishment, the angle positioning block restricts the sliding direction of the separation belt and prevents it from being twisted and deformed, and the supporting flap provides stable support for the separation belt, which together ensures the stable separation of the separation belt, effective heat conduction, and improves the operation reliability of the seedling raising device and the substrate replenishment efficiency.

[0010] In addition, the inner cavity of the meander-shaped disc body is fixedly provided with a limiting protrusion at the bottom, and the bottom of each of the two inner disc wall plates is provided with a limiting sliding groove attached to the surface of the limiting protrusion.

[0011] The second object of the present application is to provide a layered temperature control cultivation method for pine seedling raising, which adopts the pine seedling raising device described above, and comprises the following method steps: S1, selecting healthy and full pine seeds, and sowing them in the seedling cavity of the seedling disc body, at this time, the distance between the two inner disc wall plates is close, providing a compact space for seed germination and seedling growth; S2, setting the initial temperature of the temperature control mechanism to 18-23 DEG C through the control panel, so that the inner disc wall plate can actually obtain a suitable temperature of 15-20 DEG C, meet the needs of seed germination and seedling root development, and at the same time, start the humidifying mechanism, so that the air humidity in the seedling cavity is maintained at 60%-70%, and a suitable temperature and humidity environment is created for seed germination; S3, when the pine tree enters the seedling stage, according to the growth state of the seedling, the two inner disc wall plates are driven to slide reversely to make the seedling cavity extend moderately, so that more sufficient space is provided for the growth of the seedling root, with the inner disc wall plates sliding close to the temperature control mechanism, the actual temperature obtained by the inner disc wall plates is increased, the demand of the seedling for temperature is met, and the humidifying mechanism is continuously monitored, the ventilation of the outlet hole and the humidifying intensity are adjusted according to the substrate humidity and environmental changes, and the humidity in the seedling cavity is kept stable; S4, when the pine tree enters the seedling stage, the seedling cavity is further extended by the driving group again, at this time, the distance between the two inner disc wall plates reaches the maximum, and a spacious growth space is provided for the seedling, at this time, the actual temperature obtained by the inner disc wall plates is increased again, in addition, in the process of sliding the inner disc wall plates to adjust the seedling cavity, the soil in the soil covering cavity can enter the seedling cavity from the soil falling hole; S5, 7-10 days before the pine seedling reaches the transplanting standard, the temperature of the temperature control mechanism is gradually reduced through the control panel, the external environment temperature is simulated, the seedling is treated, the humidifying frequency of the humidifying mechanism is reduced, the root system of the seedling is promoted to be lignified, after the seedling adapts to the external temperature and humidity conditions, the temperature control mechanism and the humidifying mechanism are closed, and the seedling is taken out from the seedling disc body and transplanted.

[0012] Compared with the prior art, the beneficial effects of the present application are: In the pine seedling device and the layered temperature control cultivation method, the seedling cavity is formed between the two inner disc wall plates and the back-shaped disc body, so that the pine seedling can be stably planted, when the pine seedling is in the seedling stage, the distance between the two inner disc wall plates is relatively small, at this time, the temperature control mechanism keeps a certain distance from the seedling root, so that the seedling root is prevented from being damaged due to high temperature, with the growth of the seedling, the bidirectional screw rod in the driving group rotates under the driving of the adjusting disc, drives the two inner disc wall plates to slide reversely, in this process, the inner disc wall plates gradually approach the temperature control mechanism, due to the shortening of the distance, the heat obtained by the inner disc wall plates gradually increases, and the temperature in the seedling cavity is increased in steps, which can match the increasing demand of the seedling for temperature from the seedling stage to the seedling stage, and through the initial distance setting and dynamic adjustment mechanism, the seedling root is effectively protected from high temperature damage; When the pine seedling is in the seedling stage, the sliding of the inner disc wall plates can expand the inner diameter size of the seedling cavity, and provide a wider growth environment for the seedling, at the same time, the winding spring and the partition belt in the winding groove can be self-adaptively adjusted with the sliding of the inner disc wall plates, so that the soil in the soil covering cavity can enter the seedling cavity through the soil falling hole, and the substrate for the growth of the seedling is continuously supplemented, so that the seedling can obtain sufficient growth space and nutrient support in each growth stage. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the present application; Figure 2 is a whole plan view of the present application; Figure 3 is a schematic view of the structure of the seedling tray body of the present application; Figure 4 is a schematic view of the internal structure of the seedling tray body of the present application; Figure 5 is a schematic view of the structure of the seedling tray body of the present application; Figure 4 Figure 6 is a sectional view of the seedling tray body during the seedling process of the present application; Figure 7 is a sectional view of the seedling cavity adjustment of the present application; Figure 8 is a schematic view of the structure of the cavity assembly of the present application; Figure 9 is a schematic view of the structure of the driving group of the present application; Figure 10 is a schematic view of the vertical section structure of the seedling tray body of the present application.

[0014] The meanings of the respective reference numerals in the drawings are as follows: 1, device body; 10, seedling tray body; 11, outer disc group; 12, inner disc group; 111, coiled body; 112, moisture retention mechanism; 113, temperature control mechanism; 121, inner disc wall plate; 122, extension end; 1211, soil falling hole; 123, driving group; 124, seedling cavity; 125, soil covering cavity; 126, temperature control cavity; 127, cavity assembly; 21, heat conducting plate; 22, heating element plate; 23, inner groove cavity; 24, control panel; 31, humidity control cavity; 32, outlet hole; 33, ring plate; 34, mesh plate; 4, winding groove; 41, central shaft; 42, winding spring; 43, partition belt; 44, support flap; 45, bulldozing plate; 46, angle positioning block; 5, side end fixing seat; 51, bidirectional screw rod; 52, adjusting disc; 6, limiting sliding groove; 61, limiting protrusion. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0016] Embodiment 1: Please refer to Figures 1-3 ​As shown, the purpose of the present embodiment is to provide a pine seedling device, which comprises a device body 1 formed by splicing a plurality of seedling disc bodies 10, the seedling disc body 10 comprises an outer disc group 11, an inner disc group 12 is slidably arranged inside the outer disc group 11, the outer disc group 11 comprises a U-shaped disc body 111, and the inner disc group 12 comprises two inner disc wall plates 121; A seedling cavity 124 is formed between the two inner disc wall plates 121 and the U-shaped disc body 111, a moisturizing mechanism 112 is arranged inside the X direction of the U-shaped disc body 111, and the opening of the moisturizing mechanism 112 is located inside the seedling cavity 124, and a temperature control mechanism 113 is arranged inside the Y direction of the U-shaped disc body 111; During the seedling period of the pine seedlings, the distance between the two inner disc wall plates 121 is relatively small, providing a compact planting space for the seedlings, and during the seedling period of the pine seedlings, the two inner disc wall plates 121 can slide reversely inside the U-shaped disc body 111, forcing the seedling cavity 124 to expand, providing a more spacious planting space for the seedlings, and at the same time, the two inner disc wall plates 121 slide reversely close to the temperature control mechanism 113 on the same side, providing layered temperature control for different growth stages of the pine seedlings.

[0017] First, the specific structure of the inner disc group 12 is disclosed, the inner disc group 12 further comprises a soil falling hole 1211 opened on the upper end surface of the two inner disc wall plates 121, a partition cavity assembly 127 is installed inside the two inner disc wall plates 121, the other end of the partition cavity assembly 127 passes through the soil falling hole 1211 and is connected with the Y direction inner wall of the U-shaped disc body 111, a side cavity is formed between the two inner disc wall plates 121 and the Y direction inner wall of the U-shaped disc body 111, the partition cavity assembly 127 divides the side cavity into a soil covering cavity 125 and a temperature control cavity 126, and the soil covering cavity 125 is located at the upper end of the temperature control cavity 126; The top of the two inner disc wall plates 121 is fixedly installed with two extension ends 122, and the extension ends 122 are movably sleeved on the surface of the driving group 123.

[0018] As Figure 3 and Figure 4 shown, the inner disc group 12 is the core component of the pine seedling device, the soil falling hole 1211 opened on the upper end surface of the two inner disc wall plates 121 constructs a material channel between the soil covering cavity 125 and the seedling cavity 124, the partition cavity assembly 127 is installed inside the inner disc wall plate 121, one end passes through the soil falling hole 1211 and is connected with the Y direction inner wall of the U-shaped disc body 111, and the side cavity between the inner disc wall plate 121 and the Y direction inner wall of the U-shaped disc body 111 is divided into two layers, the upper soil covering cavity 125 is used for storing seedling substrate, and the lower temperature control cavity 126 accommodates the temperature control mechanism 113 to conduct heat, and through the driving group 123, the inner disc wall plate 121 can be reversely slid in the U-shaped disc body 111, realizing dynamic adjustment of the space of the seedling cavity 124.

[0019] In the process of cultivating the pine seedlings, the moisture supply mechanism 112 is needed to provide sufficient water supply for the seedlings. The specific structure of the moisture supply mechanism 112 is disclosed below. The moisture supply mechanism 112 comprises a humidity control cavity 31 opened in the inside of the X direction of the disc body 111X. A humidifying air plate is installed in the inside of the humidity control cavity 31. A plurality of outlet holes 32 are opened in the inner wall of the humidity control cavity 31. A plurality of ring plates 33 are installed in the inside of the plurality of outlet holes 32. A plurality of mesh plates 34 are arranged in the inside of the plurality of ring plates 33.

[0020] Referring to Figure 2 and in combination with Figure 5 It is shown that the moisture supply mechanism 112 is installed in the inside of the X direction of the disc body 111. The humidifying air plate arranged in the inside of the humidity control cavity 31 is powered by an external air source (not shown in the figure). The airflow generated by the air source enters the humidity control cavity 31, is subjected to humidification treatment and carries water vapor. A plurality of outlet holes 32 are uniformly distributed on the inner wall of the humidity control cavity 31. A ring plate 33 is installed in each outlet hole 32. A mesh plate 34 is arranged in the ring plate 33. The ring plate 33 plays a role of fixing and supporting the mesh plate 34. The mesh plate 34 filters and homogenizes the humidified airflow discharged from the outlet hole 32, so as to ensure that the airflow entering the seedling cavity 124 is uniform and stable in humidity. The design of the moisture supply mechanism 112 realizes accurate and stable control of the humidity of the seedling cavity 124. Specifically, the external air source cooperates with the humidifying air plate to continuously provide humidified airflow for the seedling environment, so as to meet the humidity requirements of the pine seedlings in different growth stages. The layout of the plurality of outlet holes 32 makes the humidification range cover the entire seedling cavity 124, avoiding local dryness. The arrangement of the ring plate 33 and the mesh plate 34 prevents impurities from entering the seedling cavity 124 and affecting the growth of the seedlings. On the other hand, by homogenizing the airflow, the humidity distribution is more uniform, reducing the growth difference of the seedlings caused by uneven humidity. A stable temperature and humidity environment is created for the pine seedlings, ensuring the healthy growth of the seedlings and improving the efficiency and quality of seedling cultivation.

[0021] The specific structure of the temperature control mechanism 113 is disclosed subsequently. The temperature control mechanism 113 comprises an inner groove cavity 23 opened in the inside of the Y direction of the disc body 111Y. A heating element plate 22 is installed in the inside of the inner groove cavity 23. A heat conduction plate 21 is fixedly installed on the surface of the heating element plate 22. The heat conduction plate 21 is located in the inside of the temperature control cavity 126. A control panel 24 is fixedly installed on the outer wall of the disc body 111. The control panel 24 is electrically connected with the adjacent heating element plate 22.

[0022] The compartment assembly 127 comprises a winding groove 4 opened in the inner wall plate 121, the opening of the winding groove 4 is communicated with the soil falling hole 1211, the inside of the winding groove 4 is provided with a middle shaft 41, the surface of the middle shaft 41 is connected with a winding spring 42, the other end of the winding spring 42 is connected with one end of a partition belt 43, the other end of the partition belt 43 extends out of the winding groove 4 and is fixedly connected with the inner wall of the coil body 111.

[0023] As shown in Figure 6 , the temperature control mechanism 113 is arranged in the Y direction inside the coil body 111, the Y direction inside the coil body 111 is provided with an inner groove cavity 23, the heating element plate 22 installed in the inner groove cavity 23 converts electrical energy into heat energy as a system heat source, the heat conduction plate 21 fixed on the surface of the heating element plate 22 extends into the temperature control cavity 126, can uniformly conduct heat to the inside of the temperature control cavity 126 (the heat conduction plate 21 is made of metal heat conduction material), so that the heat is transmitted to the inside of the seedling raising cavity 124 through the inner wall plate 121, and the control panel 24 on the outer wall of the coil body 111 is electrically connected with the heating element plate 22, realizes the start-stop and temperature adjustment of the heating element plate 22, meets the temperature requirement of different growth stages of the seedlings, and it should be noted that the heating element plate 22 converts electrical energy into heat energy and the control panel 24 both adopt existing technologies; Further combining Figure 8 , the compartment assembly 127 is installed in the inner wall plate 121, the opening of the winding groove 4 is communicated with the soil falling hole 1211, the middle shaft 41 is arranged in the winding groove 4, the winding spring 42 adopts a clock spring structure, one end of which is tightly sleeved on the middle shaft 41 and fixed, the other end of which is connected with the partition belt 43, the other end of the partition belt 43 is fixed on the inner wall of the coil body 111, when the inner wall plate 121 slides under the action of the driving group 123, the partition belt 43 shrinks with the movement of the inner wall plate 121, the clock spring releases the stored elastic potential energy, drives the partition belt 43 to shrink and reset, continuously provides tension to the partition belt 43, stably divides the side cavity into the mulching cavity 125 and the temperature control cavity 126, prevents the seedling substrate from entering the temperature control cavity 126 to interfere with heat conduction, and ensures the temperature control efficiency; The lower end of the inner wall plate 121 adopts a polyethylene grid plate material, the air permeability of which ensures the air circulation in the seedling raising cavity 124, and the grid plate structure blocks the soil, avoids the soil from leaking out to pollute the temperature control cavity 126 or other components, affects the heat conduction effect and system operation, realizes accurate temperature control, maintains the functional partition of the cavity, guarantees the stability of the seedling environment, creates a growth condition with suitable temperature, air circulation and stable structure for the colophony seedlings, and significantly improves the seedling quality and success rate.

[0024] In the seedling raising process, when the inner wall plate 121 slides under the action of the driving group 123, the winding spring 42 of the clock spring structure will synchronously wind the partition belt 43, combining Figure 7As shown, since part of the surface of the partition belt 43 is in contact with the soil in the soil covering cavity 125, the sliding process will move the soil, so that the soil enters the seedling cavity 124 from the soil falling hole 1211, realizing the automatic soil supplementing effect, providing the required substrate for the growth of the seedlings, the partition belt 43 can be made of high-strength polyester fiber cloth, which has high tensile strength and can withstand the weight of the soil in the soil covering cavity 125 without being damaged, and has good flexibility, which can be smoothly rolled and unfolded under the action of the winding spring 42, ensuring that the partition belt 43 can stably separate the chambers and realize the directional transportation of the soil through sliding during the dynamic adjustment of the seedling cavity 124 space, meeting the needs of the seedlings at different growth stages for the substrate.

[0025] It should be noted that since the temperature control cavity 126 will consume the temperature heated by the heating element plate 22, when setting the temperature, the heating temperature of the heating element plate 22 needs to be appropriately increased according to the size of the temperature control cavity 126, for example, the initial temperature of the temperature control mechanism 113 is set to 18-23℃ through the control panel 24, at this time, it is the seedling stage, the inner disc wall plate 121 is relatively far from the heating element plate 22, and the temperature is increased by 3℃ compared with the conventional requirement, and the compensation temperature can make the inner disc wall plate 121 actually obtain a suitable temperature of 15-20℃, meeting the needs of seed germination and seedling root development.

[0026] Since the partition belt 43 needs to push the soil in the soil covering cavity 125 to the soil falling hole 1211 and ensure that it stably slides to the seedling cavity 124 during the rolling process, the opening of the winding groove 4 is provided with a soil pushing plate 45 and an angle positioning block 46 on both sides, respectively, the bottom end of the soil pushing plate 45 is attached to the top surface of the partition belt 43, and the bottom of the partition belt 43 is attached to the surface of the angle positioning block 46.

[0027] The improvement lies in that Figure 8 When the partition belt 43 is rolled, the soil attached to the surface of the partition belt 43 is pushed to the soil falling hole 1211 by the soil pushing plate 45, realizing the transportation of the soil and reducing the manual soil supplementing operation, so that the substrate in the seedling cavity 124 can be supplemented in time according to the growth needs of the seedlings, and at the same time, the setting of the soil pushing plate 45 can also reduce the situation that the soil enters the inside of the winding groove 4 from the opening of the winding groove 4; the angle positioning block 46 is attached to the bottom of the partition belt 43, and provides guidance and constraint for the sliding of the partition belt 43 through the set inclination angle, reducing the left and right deviation or distortion of the partition belt 43 during the movement, and at the same time, supporting the partition belt 43, so that the partition belt 43 remains flat when bearing the weight of the soil, and the cooperation of the two guarantees the smooth running of the partition belt 43 during the rolling process, providing a continuous and stable environment for the growth of the rosin seedlings, and improving the seedling efficiency and quality.

[0028] The partition belt 43 needs to bear the gravity of the soil in the soil covering cavity 125 and the pulling force generated by its own sliding when separating the soil covering cavity 125 and the temperature control cavity 126, and in the long-term use process, the end of the partition belt 43 away from the winding groove 4 is prone to sagging due to stress, resulting in deformation of the partition belt 43 and failure of the cavity separation, therefore, the inner wall of the temperature control cavity 126 is fixedly installed with a supporting flap 44, and the bottom of the side of the partition belt 43 away from the winding groove 4 is supported on the surface of the supporting flap 44.

[0029] Referring to Figure 4 and combining Figure 6 the drawings, the supporting flap 44 is fixed to the inner wall of the temperature control cavity 126 to provide a stable support point for the partition belt 43, when the partition belt 43 is wound or unwound under the driving of the winding spring 42, the bottom of the side of the partition belt 43 away from the winding groove 4 directly contacts the surface of the supporting flap 44, the supporting flap 44 offsets the gravity of the soil and the sliding pulling force of the partition belt 43 through its own structural strength, reduces the sagging or deformation of the partition belt 43 due to uneven stress, ensures that the partition belt 43 always remains flat, maintains the effective separation of the soil covering cavity 125 and the temperature control cavity 126, ensures that the heat conducting plate 21 of the temperature control mechanism 113 normally conducts heat in the temperature control cavity 126, and effectively improves the stability and service life of the partition cavity assembly 127.

[0030] The specific structure of the driving group 123 will be disclosed below, the driving group 123 includes four side end fixed seats 5 fixedly installed on the top of the meandering disc body 111, a bidirectional screw rod 51 is rotatably arranged between two side end fixed seats 5, one side of the rotating shaft of the bidirectional screw rod 51 is fixedly connected with an adjusting disc 52, and the two extension ends 122 of the top of the inner disc wall plate 121 are respectively sleeved on the surfaces of the two bidirectional screw rods 51.

[0031] Referring to Figure 9It can be seen that the four side end fixing seats 5 fixed at the top of the loop-shaped disc body 111 support two bidirectional screws 51, the threads of which are opposite at both ends, and the sleeve joint structure of the extension end 122 is matched, when the two-way screw 51 is rotated by rotating the adjusting disc 52, the extension end 122 is driven to slide in opposite directions at both ends, realizing the dynamic adjustment of the inner diameter size of the seedling cavity 124, the design utilizes the transmission principle that the threads of the two-way screw 51 at both ends are opposite in rotation direction, ensures the synchronous reverse movement of the two inner disc wall plates 121, avoids uneven stress on the structure, guarantees the shape regularity when the seedling cavity 124 expands or shrinks, and can accurately match the space requirement of the tree seedlings at different growth stages by manually controlling the rotation angle of the screw through the adjusting disc 52, and the structure is simple and reliable, easy to operate and maintain, this transmission mode not only realizes the stable sliding of the inner disc wall plate 121, but also guarantees the functional separation of the temperature control cavity 126 and the covering soil cavity 125 in the space adjustment process, provides a suitable space environment for the growth of the seedlings, improves the practicability and efficiency of the seedling device, in addition, the two bidirectional screws 51 are of the same shape, and the pitch and length are equal, which ensures the sliding stability of the inner disc wall plate 121, and the specific position of the bidirectional screw 51 in the drawing is only for illustration, the setting of the two bidirectional screws 51 does not affect the transplanting of the seedlings.

[0032] Because the inner disc wall plate 121 slides under the drive of the bidirectional screw 51, if there is no guiding and limiting structure, it is easy to deviate and slide obliquely, which affects the accuracy and stability of the size adjustment of the seedling cavity 124, therefore, the limit bump 61 is fixedly installed at the bottom of the inner cavity of the loop-shaped disc body 111, and the bottom of the two inner disc wall plates 121 is provided with a limit sliding groove 6 matched with the surface of the limit bump 61.

[0033] As Figure 10 It can be seen that the limit bump 61 is fixed at the bottom of the inner cavity of the loop-shaped disc body 111, and its shape is matched with the limit sliding groove 6 at the bottom of the inner disc wall plate 121, when the inner disc wall plate 121 is driven to slide by the bidirectional screw 51, the limit bump 61 restricts the limit sliding groove 6, limits the left and right deviation of the inner disc wall plate 121, and ensures the horizontal linear motion of the inner disc wall plate 121, at the same time, maintains the effective separation of the covering soil cavity 125 and the temperature control cavity 126, ensures the stable functions of the heat conduction of the temperature control mechanism 113 and the humidification of the moisture retention mechanism 112, reduces the friction loss of the parts, prolongs the service life of the device, provides a stable growth space environment for the rosin seedlings, and guarantees the smooth development of the seedling work.

[0034] Working principle: The device body 1 is spliced by a plurality of seedling trays, the inner disc wall plate 121 of the inner disc group 12 is driven by the driving group 123 of the outer disc group 11 to slide reversely, the space of the seedling cavity 124 is dynamically adjusted by cooperating with the limiting lug 61 and the limiting sliding groove 6, the inner disc wall plate 121 slides close to the heat conduction plate 21 of the Y direction temperature control mechanism 113, the temperature of the seedling cavity 124 is raised by adjusting the heating element plate 22 of the control panel 24, the humidifying air plate of the X direction humidifying mechanism 112 sends uniform humidity flow to the seedling cavity 124 through the outlet hole 32, the soil in the soil covering cavity 125 is automatically supplemented into the seedling cavity 124 under the action of the soil pushing plate 45 and the angle positioning block 46 during the winding process of the partition belt 43, the supporting flaps 44 ensure that the partition belt 43 is tensioned to separate the temperature control cavity 126 and the soil covering cavity 125, the temperature stratification control, humidity accurate maintenance and substrate automatic supplement from the compact space of the seedling stage to the spacious space of the seedling stage are realized, and the integrated seedling of transplanting after seedling is realized.

[0035] Embodiment 2: According to the content provided in embodiment 1, the purpose is to provide a stratified temperature control cultivation method for pine seedling, and the specific steps are as follows: Step one, select healthy and full pine seeds, and sow them in the seedling cavity 124 of the seedling tray body 10, at this time, the distance between the two inner disc wall plates 121 is close, which provides a compact space for seed germination and seedling growth; Step two, set the initial temperature of the temperature control mechanism 113 to 18-23℃ (3℃ higher than the conventional requirement) through the control panel 24, the compensation temperature can make the actual temperature of the inner disc wall plate 121 reach 15-20℃, which meets the seed germination and seedling root development requirements, and the humidity of the seedling cavity 124 is maintained at 60%-70% by starting the humidifying mechanism 112, which creates a suitable temperature and humidity environment for seed germination; Step three, when the pine enters the seedling stage, according to the growth status of the seedling, the two inner disc wall plates 121 are reversely slid by the driving group 123, the seedling cavity 124 is moderately expanded, and more sufficient space is provided for the root stem growth of the seedling, as the inner disc wall plate 121 slides close to the temperature control mechanism 113, the actual temperature obtained by the inner disc wall plate 121 is raised, which meets the temperature requirement of the rapid growth of the seedling, and the humidifying mechanism 112 is continuously monitored, the ventilation volume of the outlet hole 32 and the humidifying intensity are adjusted according to the substrate humidity and environmental changes, and the humidity in the seedling cavity 124 is kept stable; Step four, when the pine trees enter the seedling stage, the driving group 123 is driven again to further expand the seedling cavity 124, at this time, the distance between the two inner disc wall plates 121 reaches the maximum, providing a spacious growth space for the seedlings, at this time, the actual temperature of the inner disc wall plate 121 is increased again, in addition, in the process of sliding adjustment of the seedling cavity 124 by the inner disc wall plate 121, the soil in the soil covering cavity 125 can enter the seedling cavity 124 from the soil falling hole 1211; Step five, 7-10 days before the pine seedlings reach the transplanting standard, the temperature of the temperature control mechanism 113 is gradually reduced through the control panel 24 to simulate the external environment temperature, the seedlings are subjected to hardening treatment, at the same time, the humidifying frequency of the moisture retention mechanism 112 is reduced to promote the root system of the seedlings to be lignified, after the seedlings adapt to the external temperature and humidity conditions, the temperature control mechanism 113 and the moisture retention mechanism 112 are turned off, the seedlings are taken out from the seedling disc body 10, and then are transplanted.

[0036] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, the above embodiments and descriptions in the specification are only preferred examples of the present application, and are not used to limit the present application, various changes and improvements of the present application can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A rosin tree seedling raising device, comprising a device body (1), wherein the device body (1) is formed by splicing together multiple seedling tray bodies (10), characterized in that: The seedling tray body (10) includes an outer tray assembly (11), and an inner tray assembly (12) is slidably arranged inside the outer tray assembly (11). The outer tray assembly (11) includes a spiral tray body (111), and the inner tray assembly (12) includes two inner tray wall panels (121). A seedling cavity (124) is formed between the two inner plate wall panels (121) and the spiral plate body (111). A humidifying mechanism (112) is provided in the X direction of the spiral plate body (111), and the opening of the humidifying mechanism (112) is located inside the seedling cavity (124). A temperature control mechanism (113) is provided in the Y direction of the spiral plate body (111). During the seedling stage of rosin tree seedlings, the two inner disc wall panels (121) are relatively close together, providing a compact planting space for the seedlings. During the mature seedling stage of rosin trees, the two inner disc wall panels (121) can slide in opposite directions inside the spiral disc body (111), forcing the seedling cavity (124) to expand, providing a more spacious planting space for the mature seedlings. At the same time, the two inner disc wall panels (121) slide in opposite directions close to the temperature control mechanism (113) on the same side, providing layered temperature control for different growth stages of rosin tree seedlings.

2. The rosin tree seedling raising device according to claim 1, characterized in that: The inner plate assembly (12) also includes soil dropping holes (1211) opened on the upper surface of the two inner plate wall panels (121). The two inner plate wall panels (121) are each equipped with a cavity assembly (127). The other end of the cavity assembly (127) passes through the soil dropping hole (1211) and is connected to the inner wall of the U-shaped plate body (111) in the Y direction. A side cavity is formed between the two inner plate wall panels (121) and the inner wall of the U-shaped plate body (111) in the Y direction. The cavity assembly (127) divides the side cavity into a soil covering cavity (125) and a temperature control cavity (126). The soil covering cavity (125) is located at the upper end of the temperature control cavity (126). Two extension ends (122) are fixedly installed on the top of each of the two inner disc wall panels (121), and the extension ends (122) are movably sleeved on the surface of the drive assembly (123).

3. The rosin tree seedling raising device according to claim 2, characterized in that: The humidification mechanism (112) includes a humidity control cavity (31) opened inside the X direction of the rotary disc body (111). A humidifying air plate is installed inside the humidity control cavity (31). Multiple outlet holes (32) are opened on the inner wall of the humidity control cavity (31). A ring plate (33) is installed inside each of the multiple outlet holes (32). A mesh plate (34) is provided inside each of the multiple ring plates (33).

4. The rosin tree seedling raising device according to claim 3, characterized in that: The temperature control mechanism (113) includes an inner groove cavity (23) opened inside the Y direction of the spiral disc body (111). A heating element plate (22) is installed inside the inner groove cavity (23). A heat-conducting plate (21) is fixedly installed on the surface of the heating element plate (22). The heat-conducting plate (21) is located inside the temperature control cavity (126). A control panel (24) is fixedly installed on the outer wall of the spiral disc body (111). The control panel (24) is electrically connected to the adjacent heating element plate (22).

5. The rosin tree seedling raising device according to claim 4, characterized in that: The cavity assembly (127) includes a winding groove (4) formed inside the inner plate wall (121). The opening of the winding groove (4) is connected to the soil drop hole (1211). A central shaft (41) is provided inside the winding groove (4). A winding spring (42) is connected to the surface of the central shaft (41). The other end of the winding spring (42) is connected to one end of the partition belt (43). The other end of the partition belt (43) extends out of the winding groove (4) and is fixedly connected to the inner wall of the rotary disc body (111).

6. The rosin tree seedling raising device according to claim 5, characterized in that: A bulldozer plate (45) and an angle positioning block (46) are respectively installed on both sides of the opening of the winding groove (4). The bottom end of the bulldozer plate (45) is attached to the top surface of the partition strip (43), and the bottom of the partition strip (43) is attached to the surface of the angle positioning block (46).

7. The rosin tree seedling raising device according to claim 6, characterized in that: The inner wall of the temperature control cavity (126) is fixedly installed with a support plate (44), and the bottom of the side of the diaphragm (43) away from the winding groove (4) is supported on the surface of the support plate (44).

8. The rosin tree seedling raising device according to claim 2, characterized in that: The drive assembly (123) includes four side end fixing seats (5) fixedly installed on the top of the rotary disc body (111). A bidirectional lead screw (51) is rotatably provided between two side end fixing seats (5). One side of the bidirectional lead screw (51) is fixedly connected to the adjusting disc (52). The two extension ends (122) at the top of the inner disc wall plate (121) are respectively sleeved on the surface of the two bidirectional lead screws (51).

9. The rosin tree seedling raising device according to claim 1, characterized in that: The bottom of the inner cavity of the spiral disc body (111) is fixedly installed with a limiting protrusion (61), and the bottom of the two inner disc wall plates (121) are provided with limiting grooves (6) that fit with the surface of the limiting protrusion (61).

10. A method for stratified temperature-controlled cultivation of rosin tree seedlings, using the rosin tree seedling device as described in claim 5, characterized in that, The methods and steps include the following: S1. Select healthy and plump rosin tree seeds and sow them in the seedling cavity (124) of the seedling tray body (10). At this time, the two inner tray wall plates (121) are close together, providing a compact space for seed germination and seedling growth. S2. Set the initial temperature of the temperature control mechanism (113) to 18-23℃ via the control panel (24) (3℃ higher than the usual requirement). This compensation temperature allows the inner plate wall (121) to actually obtain a suitable temperature of 15-20℃, which meets the needs of seed germination and seedling root development. At the same time, activate the humidification mechanism (112) to maintain the air humidity in the seedling cavity (124) at 60%-70%, creating a suitable temperature and humidity environment for seed germination. S3. When the rosin tree enters the seedling stage, according to the growth status of the seedling, the two inner plate walls (121) are driven to slide in opposite directions by the drive group (123), so that the seedling cavity (124) is appropriately expanded to provide more space for the growth of the seedling roots and stems. As the inner plate walls (121) slide closer to the temperature control mechanism (113), the actual temperature obtained by the inner plate walls (121) is increased to meet the temperature requirements of the rapid growth of the seedling. In addition, the humidification mechanism (112) is continuously monitored, and the ventilation volume and humidification intensity of the outlet (32) are adjusted according to the substrate humidity and environmental changes to maintain the humidity in the seedling cavity (124) stable. S4. When the rosin tree enters the seedling stage, the seedling cavity (124) is further expanded by the drive group (123). At this time, the distance between the two inner plate wall panels (121) reaches the maximum, providing a spacious growth space for the seedling. At this time, the actual temperature that the inner plate wall panel (121) can obtain is increased again. In addition, during the process of sliding and adjusting the seedling cavity (124) by the inner plate wall panel (121), the soil in the soil covering cavity (125) can enter the seedling cavity (124) from the soil drop hole (1211). S5. 7-10 days before the rosin seedlings reach the transplanting standard, gradually reduce the temperature of the temperature control mechanism (113) through the control panel (24) to simulate the external environment temperature and harden the seedlings. At the same time, reduce the humidification frequency of the moisturizing mechanism (112) to promote the lignification of the seedling roots. After the seedlings adapt to the external temperature and humidity conditions, close the temperature control mechanism (113) and the moisturizing mechanism (112), and take the seedlings out of the seedling tray body (10) for transplanting.

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