Forestry seedling raising device and seedling raising method thereof

Abstract

The invention is suitable for the technical field of seedling raising devices, and provides a seedling raising method of a forestry seedling raising device.The forestry seedling raising device comprises a seedling raising chamber, a containing and receiving frame, an illumination system, an irrigation system, a temperature control system, seedling raising pots and a supporting and moving mechanism, and further comprises a distance adjusting mechanism; the distance adjusting mechanism comprises a control assembly, a main body frame, a connecting assembly and a distance adjusting assembly, in the growth process of seedlings, the distance between every two adjacent seedling raising basins can be changed through the distance adjusting mechanism due to the continuously increased self weight of the seedlings, the seedlings are prevented from extruding or shielding each other, and an illumination and irrigation system can effectively work; the limiting frame fixes one supporting and moving mechanism located in the middle of the containing frame, the other supporting and moving mechanisms are all in a free state, and therefore the distance between the multiple seedling raising pots can be adjusted in order, movement interference is avoided, the seedling growth condition can be judged according to the contact state of the containing frame and the supporting and moving mechanisms, and the seedling raising efficiency is improved. A worker can conveniently and quickly judge the transplanting time of the seedlings.

Description

Technical Field

[0001] The present invention belongs to the technical field of seedling raising devices, and particularly relates to a forestry seedling raising device and a seedling raising method thereof. Background Technique

[0002] Tree seedlings, also simply referred to as seedlings, are the general term for various fruit tree seedlings, arbor seedlings, and shrub seedlings; and seedling raising refers to cultivating seedlings, and in forestry, the cultivation of forestry seedlings is essential. With the rapid development of technology and economy, at present, seedling raising devices are generally used to cultivate tree seedlings.

[0003] Existing forestry seedling raising devices include a seedling raising base and a housing base. Four water inlet grooves are arranged at equal intervals in a circumferential manner on the upper end surface of the seedling raising base. Water outlet components are fixedly arranged inside the four water inlet grooves. A plurality of seedling trays are fixedly arranged between every two water inlet grooves on the upper end surface of the seedling raising base. A connecting column is fixedly arranged at the midpoint of the upper end surface of the seedling raising base. Four outer sleeves are arranged around the outer wall of the connecting column at equal intervals near the upper end. Auxiliary mechanisms are embedded inside the four outer sleeves.

[0004] In the existing device, the containers for cultivating seedlings are seedling trays, and the seedling trays are fixed on the device, which makes it impossible to adaptively adjust the distance between adjacent seedling trays. The seedlings in adjacent seedling trays are extremely likely to be blocked or squeezed during the growth process, which will directly affect the growth quality and growth efficiency of the seedlings, and at the same time will cause the lighting system and irrigation system to be unable to effectively and sufficiently illuminate and irrigate the seedlings, thereby resulting in poor cultivation quality of the seedlings.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a forestry seedling raising device and a seedling raising method thereof to overcome the deficiencies in current practical applications. Summary of the Invention

[0006] Aiming at the deficiencies of the existing technology, the purpose of the embodiments of the present invention is to provide a forestry seedling raising device and a seedling raising method thereof to solve the problems in the above background technique.

[0007] To achieve the above purpose, the present invention provides the following technical solutions: A forestry seedling raising device includes a seedling raising chamber, in which a receiving frame, a lighting system, an irrigation system, and a temperature control system are sequentially arranged. A plurality of seedling pots and a support moving mechanism are distributed in the receiving frame. The seedling pots are located directly above the support moving mechanism. A limiting frame for limiting and fixing the support moving mechanism located in the middle thereof is fixed in the middle of the receiving frame. Drainage holes are distributed at the four corners of the receiving frame. It also includes: Distance adjustment mechanism, the distance adjustment mechanisms are distributed at the four diagonals of the support moving mechanism. The distance adjustment mechanism includes a control component, a main body frame, a connection component and a distance adjustment component. One end of the control component is located directly above the support moving mechanism and supports the seedling raising pot. The other end of the control component is installed on the diagonal of the support moving mechanism and is connected to the main body frame. The main body frame is fixed on the diagonal of the support moving mechanism. One end of the distance adjustment component is slidably installed inside the main body frame and is connected to the control component through the connection component. The other end of the distance adjustment component is connected to the distance adjustment component on the adjacent support moving mechanism through a linkage mechanism.

[0008] As a further technical solution of the present invention, the control component includes a fixed frame, a sliding sleeve, a first spring, a U-shaped column and a fixed sleeve. The fixed frame is located between the seedling raising pot and the support moving mechanism. The top of the fixed frame supports the seedling raising pot. Sliding sleeves are fixed at the four corners of the fixed frame. The sliding sleeves are vertically slidably installed on the support moving mechanism. A first spring is sleeved outside the sliding sleeves. The bottom of the sliding sleeve is fixedly connected to one end of the U-shaped column. The other end of the U-shaped column is slidably installed in the fixed sleeve, and the other end of the U-shaped column is connected to the distance adjustment component through the connection component. The fixed sleeve is vertically fixed on the support moving mechanism, and a main body frame communicating with it is fixed on the fixed sleeve.

[0009] As a further technical solution of the present invention, the distance adjustment component includes sliding columns, a second spring, rotating rods and pin shafts. The sliding columns are symmetrically and slidably installed at both ends of the main body frame. A second spring is installed between the two sliding columns. One end of each of the two sliding columns close to each other is connected to the other end of the U-shaped column through the connection component. Rotating rods are rotatably installed at the other ends of the two sliding columns. One ends of the two rotating rods are cross-rotatably connected through a pin shaft. The pin shaft is connected to the pin shaft on the adjacent support moving mechanism through a linkage mechanism.

[0010] As a further technical solution of the present invention, the connection component includes a connection rope and a fixed pulley. The two ends of the connection rope are respectively fixed on the sliding column and the U-shaped column. The fixed pulley is fixed on the inner wall of the main body frame and close to the connection part of the main body frame and the fixed sleeve. The outer wall of the connection rope is placed on the fixed pulley.

[0011] As a further technical solution of the present invention, the linkage mechanism includes a U-shaped plate, a first linkage part and a second linkage part. The U-shaped plate is rotatably installed on the pin shaft. The first linkage part and the second linkage part are respectively installed on two adjacent U-shaped plates. The inner wall of the first linkage part is threadedly connected to the outer wall of the second linkage part.

[0012] As a further technical solution of the present invention, a square groove for the seedling-raising pot to pass through is provided in the middle of the fixed frame. Limiting holes are respectively arranged circumferentially on the fixed frame, and the limiting holes are matched with the limiting protrusions distributed on the seedling-raising pot. Micro protrusions in contact with the fixed frame are also distributed on the seedling-raising pot.

[0013] As a further technical solution of the present invention, the support moving mechanism includes a support frame, support columns and universal wheels. The support frame is fixedly connected to the fixed sleeve, the support frame is vertically slidably connected to the sliding sleeve, support columns are distributed at the bottom of the support frame, and universal wheels are installed at the bottom of the support columns.

[0014] A seedling-raising method for the forestry seedling-raising device as described above, the method steps are as follows: First, during the growth process of the seedlings, their own weight changes and drives the fixed frame to move downward. The fixed frame drives the sliding sleeves at the four corners to move downward synchronously. The sliding sleeves drive the U-shaped column to move downward. One end of the connecting rope is driven by the U-shaped column to move downward, and one end of the connecting rope drives the sliding column to move within the main frame. Second, the two sliding columns approach each other inside the same main frame. During this process, the fixed pulley guides and limits the connecting rope. The two sliding columns drive the two rotating rods to cross and rotate and reduce the angle between the two rotating rods by approaching each other. The two rotating rods drive the pin shaft to move away from the seedling-raising pot by cross-rotating and reducing the angle between them. Third, the pin shaft changes the distance between it and the adjacent pin shaft through the linkage mechanism. The adjacent two pin shafts change the distance between them and cooperate with the support moving mechanism to change the distance between the adjacent two seedling-raising pots. Fourth, since one support moving mechanism located in the middle of the receiving frame is always in a static state, and the remaining support moving mechanisms distributed on the receiving frame are all in a free state. The multiple support moving mechanisms in the free state are based on the static support moving mechanism and move away from this support moving mechanism on the receiving frame. The multiple support moving mechanisms drive the multiple seedling-raising pots to orderly adjust the distance between them and the adjacent seedling-raising pots, and judge the growth situation of the seedlings based on the size of the receiving frame. When the support moving mechanism moves to contact the inner wall of the receiving frame, the receiving frame limits it and prevents its normal movement.

[0015] Compared with the prior art, the beneficial effects of the present invention are: During the growth process of the seedlings, their self-weight continuously changes, and the distance between adjacent two seedling-raising pots is changed through the distance-adjusting mechanism, so as to avoid the situation that adjacent two seedlings are squeezed or blocked from each other during the growth process, ensure that each seedling can have sufficient growth space, facilitate the lighting system and irrigation system to effectively and sufficiently illuminate and irrigate the seedlings, meet the growth conditions and growth needs of the seedlings, and thus improve the seedling-raising efficiency and quality of the device; Moreover, since a support moving mechanism located in the middle of the receiving frame is always in a static state, while the other support moving mechanisms distributed on the receiving frame are all in a free state, this enables the multiple support moving mechanisms in the free state to move away from the static support moving mechanism on the receiving frame with the static support moving mechanism as a reference. This can not only ensure that multiple seedling-raising pots can orderly adjust the distance between adjacent seedling-raising pots during the growth process of the seedlings, avoid the problem of movement interference, and improve the practicability and convenience of the device; it can also judge the growth situation of the seedlings based on the size of the receiving frame. When the support moving mechanism moves into contact with the inner wall of the receiving frame, the receiving frame will limit its movement, making it unable to move normally. This can facilitate the staff to quickly judge the growth situation of the seedlings and transplant them, meet the growth conditions and production needs of the seedlings, and improve the convenience and seedling-raising efficiency of the device.

[0016] To more clearly elaborate the structural features and functions of the present invention, the following will combine the drawings with specific embodiments to detail the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the forestry seedling-raising device provided by the embodiment of the present invention.

[0018] Figure 2 It is a front view of the structural diagram of the forestry seedling-raising device provided by the embodiment of the present invention.

[0019] Figure 3 For Figure 1 it is a schematic structural diagram of the receiving frame in

[0020] Figure 4 For Figure 1 it is a schematic structural diagram of the seedling-raising pot, distance-adjusting mechanism, linkage mechanism and support moving mechanism in

[0021] Figure 5 For Figure 4 it is a bottom view of the structural diagram of the seedling-raising pot, distance-adjusting mechanism, linkage mechanism and support moving mechanism in

[0022] Figure 6 For Figure 4 it is a schematic structural diagram of the distance-adjusting mechanism in

[0023] Figure 7 is Figure 6 an enlarged structural view of the control component, the main body frame and the distance adjustment component in

[0024] Figure 8 is Figure 7 a schematic structural view of the local section of the control component, the main body frame and the distance adjustment component in

[0025] Figure 9 is Figure 8 an enlarged view of the structure at position A in

[0026] Figure 10 is Figure 4 an enlarged structural view of the linkage mechanism in

[0027] Figure 11 is Figure 4 an enlarged structural view of the seedling raising pot in

[0028] Figure 12 is Figure 4 an enlarged structural view of the support moving mechanism in

[0029] Reference numerals: 100 - receiving frame, 101 - drainage hole, 102 - limiting frame, 200 - seedling raising pot, 210 - limiting protrusion, 220 - micro protrusion, 300 - distance adjustment mechanism, 310 - control component, 311 - fixed frame, 312 - limiting hole, 313 - sliding sleeve, 314 - first spring, 315 - U-shaped column, 316 - fixed sleeve, 320 - main body frame, 330 - connecting component, 331 - connecting rope, 332 - fixed pulley, 340 - distance adjustment component, 341 - sliding column, 342 - second spring, 343 - rotating rod, 344 - pin shaft, 400 - linkage mechanism, 410 - U-shaped plate, 420 - first linkage member, 420 - second linkage member, 500 - support moving mechanism, 510 - support frame, 520 - support column, 530 - universal wheel. Detailed implementation manners

[0030] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present 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 only used to explain the present invention and are not used to limit the present invention.

[0031] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0032] As Figures 1 to 9As shown in the figure, a forestry seedling-raising device provided as an embodiment of the present invention includes a seedling-raising chamber, in which a receiving frame 100, a lighting system, an irrigation system, and a temperature control system are sequentially arranged. A plurality of seedling pots 200 and a support and moving mechanism 500 are distributed in the receiving frame 100. The seedling pots 200 are located directly above the support and moving mechanism 500. A limiting frame 102 for limiting and fixing the support and moving mechanism 500 located in the middle thereof is fixed in the middle of the receiving frame 100. Drainage holes 101 are distributed at the four corners of the receiving frame 100. It further includes: A distance adjustment mechanism 300, which is distributed at the four diagonals of the support and moving mechanism 500. The distance adjustment mechanism 300 includes a control component 310, a main body frame 320, a connection component 330, and a distance adjustment component 340. One end of the control component 310 is located directly above the support and moving mechanism 500 and supports the seedling pot 200. The other end of the control component 310 is installed on the diagonal of the support and moving mechanism 500 and is connected to the main body frame 320. The main body frame 320 is fixed on the diagonal of the support and moving mechanism 500. One end of the distance adjustment component 340 is slidably installed inside the main body frame 320 and is connected to the control component 310 through the connection component 330. The other end of the distance adjustment component 340 is connected to the distance adjustment component 340 on the adjacent support and moving mechanism 500 through a linkage mechanism 400; During the growth process of the seedlings, their own weights continuously change and drive the control component 310 to move vertically downward on the support and moving mechanism 500. The control component 310 drives the distance adjustment component 340 to extend on the main body frame 320 through the connection component 330. The distance adjustment component 340 can change the distance between it and the adjacent distance adjustment component 340 through extension and cooperation with the linkage mechanism 400, so as to change the distance between two adjacent seedling pots 200, avoid the situation of mutual extrusion or mutual occlusion between two adjacent seedlings during the growth process, ensure that each seedling can have sufficient growth space, facilitate the lighting system and the irrigation system to effectively and fully irradiate and irrigate the seedlings, meet the growth conditions and growth requirements of the seedlings, and thus improve the seedling-raising efficiency and seedling-raising quality of the device; Moreover, since a support moving mechanism 500 located in the middle of the receiving frame 100 is always in a stationary state, while the other support moving mechanisms 500 distributed on the receiving frame 100 are all in a free state, this enables the multiple support moving mechanisms 500 in the free state to move away from the stationary support moving mechanism 500 on the receiving frame 100. This can not only ensure that the multiple seedling trays 200 can orderly adjust the distance between adjacent seedling trays 200 during the growth of the seedlings, avoid the problem of movement interference, and improve the practicability and convenience of the device; but also can judge the growth situation of the seedlings based on the size of the receiving frame 100. When the support moving mechanism 500 moves to contact the inner wall of the receiving frame 100, the receiving frame 100 will limit its movement, making it unable to move normally. This can facilitate the staff to quickly judge the growth situation of the seedlings and transplant them, meet the growth conditions and production requirements of the seedlings, and improve the convenience of the device and the seedling raising efficiency.

[0033] In a preferred embodiment, the seedling raising chamber, the lighting system, the watering system, and the temperature control system are all conventional technologies, so they are not mentioned in the drawings. According to the types of seedlings, the seedling raising chamber, the lighting system, the watering system, and the temperature control system can be adaptively selected and matched.

[0034] As Figures 4 to 9 shown, as a preferred embodiment of the present invention, the control component 310 includes a fixed frame 311, a sliding sleeve 313, a first spring 314, a U-shaped column 315, and a fixed sleeve 316. The fixed frame 311 is located between the seedling tray 200 and the support moving mechanism 500. The top of the fixed frame 311 supports the seedling tray 200. Sliding sleeves 313 are fixed at the four corners of the fixed frame 311. The sliding sleeves 313 are vertically and slidably installed on the support moving mechanism 500. A first spring 314 is sleeved outside the sliding sleeve 313. The bottom of the sliding sleeve 313 is fixedly connected to one end of the U-shaped column 315. The other end of the U-shaped column 315 is slidably installed in the fixed sleeve 316, and the other end of the U-shaped column 315 is connected to the distance adjusting component 340 through the connection component 330. The fixed sleeve 316 is vertically fixed on the support moving mechanism 500, and a main body frame 320 connected to it is fixed on the fixed sleeve 316.

[0035] During the growth of the seedlings, their self-weight continuously changes and drives the fixed frame 311 to move downward. The fixed frame 311 drives the sliding sleeves 313 at the four corners to move downward synchronously. The sliding sleeves 313 drive the U-shaped column 315 to move downward. By moving downward and cooperating with the connecting component 330, the U-shaped column 315 can drive the distance-adjusting component 340 to extend on the main body frame 320. By extending and cooperating with the linkage mechanism 400, the distance-adjusting component 340 can change the distance between it and the adjacent distance-adjusting component 340, thereby changing the distance between two adjacent seedling pots 200, avoiding the situation of mutual extrusion or mutual occlusion between two adjacent seedlings during growth, ensuring that each seedling can have sufficient growth space, facilitating the lighting system and the watering system to effectively and sufficiently illuminate and water the seedlings, meeting the growth conditions and growth requirements of the seedlings, and further improving the seedling raising efficiency and quality of the device.

[0036] In a preferred embodiment, the main body frame 320 preferably adopts a frame structure composed of two square frames and sealing plates. The two square frames are aligned vertically and fixedly connected, and the two sealing plates are distributed at the two ends of the square frames and block them.

[0037] As Figures 4 to 9 shown, as a preferred embodiment of the present invention, the distance-adjusting component 340 includes sliding columns 341, second springs 342, rotating rods 343 and pin shafts 344. The sliding columns 341 are symmetrically and slidably installed at both ends of the main body frame 320. A second spring 342 is installed between the two sliding columns 341. And the mutually close ends of the two sliding columns 341 are both connected to the other end of the U-shaped column 315 through the connecting component 330. Rotating rods 343 are rotatably installed at the other ends of the two sliding columns 341. One ends of the two rotating rods 343 are cross-rotatably connected through a pin shaft 344. The pin shaft 344 is connected to the pin shaft 344 on the adjacent support moving mechanism 500 through the linkage mechanism 400.

[0038] The U-shaped column 315 can move the two sliding columns 341 closer to each other inside the same main frame 320 by moving downward and cooperating with the connecting component 330. By moving closer to each other, the two sliding columns 341 can drive the two rotating rods 343 to cross-rotate, so that the angle between the two rotating rods 343 continuously decreases, and then drive the pin shaft 344 to move away from the seedling tray 200. The pin shaft 344 can change the distance between it and the adjacent pin shaft 344 through the linkage mechanism 400, so as to change the distance between two adjacent seedling trays 200, avoiding the situation that two adjacent seedlings are squeezed or blocked from each other during the growth process, ensuring that each seedling can have sufficient growth space, facilitating the lighting system and the irrigation system to effectively and fully illuminate and irrigate the seedlings, meeting the growth conditions and growth needs of the seedlings, and then improving the seedling raising efficiency and quality of the device.

[0039] In a preferred embodiment, at the initial stage of seedling growth, the angle between the two rotating rods 343 is relatively large.

[0040] As Figures 4 to 9 shown, as a preferred embodiment of the present invention, the connecting component 330 includes a connecting rope 331 and a fixed pulley 332. The two ends of the connecting rope 331 are respectively fixed on the sliding column 341 and the U-shaped column 315. The fixed pulley 332 is fixed on the inner wall of the main frame 320 and close to the connection part of the main frame 320 and the fixed sleeve 316. The outer wall of the connecting rope 331 is placed on the fixed pulley 332.

[0041] The U-shaped column 315 drives one end of the connecting rope 331 to move downward, and one end of the connecting rope 331 can drive the sliding column 341 to move inside the main frame 320, so that the two sliding columns 341 move closer to each other inside the same main frame 320. During this process, the fixed pulley 332 guides and limits the connecting rope 331. By moving closer to each other, the two sliding columns 341 can drive the two rotating rods 343 to cross-rotate, so that the angle between the two rotating rods 343 continuously decreases, and then drive the pin shaft 344 to move away from the seedling tray 200. The pin shaft 344 can change the distance between it and the adjacent pin shaft 344 through the linkage mechanism 400, so as to change the distance between two adjacent seedling trays 200, avoiding the situation that two adjacent seedlings are squeezed or blocked from each other during the growth process, ensuring that each seedling can have sufficient growth space, facilitating the lighting system and the irrigation system to effectively and fully illuminate and irrigate the seedlings, meeting the growth conditions and growth needs of the seedlings, and then improving the seedling raising efficiency and quality of the device.

[0042] As Figures 4 to 10As shown, as a preferred embodiment of the present invention, the linkage mechanism includes a U-shaped plate 410, a first linkage member 420, and a second linkage member 420. The U-shaped plate 410 is rotatably installed on the pin shaft 344. The first linkage member 420 and the second linkage member 420 are respectively installed on two adjacent U-shaped plates 410, and the inner wall of the first linkage member 420 is threadedly connected to the outer wall of the second linkage member 420.

[0043] The first linkage member 420 and the second linkage member 420 can connect two adjacent support moving mechanisms 500 into a whole by means of mutual screwing. When a single support moving mechanism 500 moves, it can synchronously drive the other support moving mechanism 500 to move synchronously, so as to complete the adjustment of the spacing between multiple seedling trays 200, ensure that each seedling can have sufficient growth space, and facilitate the lighting system and irrigation system to effectively and fully illuminate and irrigate the seedlings, meeting the growth conditions and growth requirements of the seedlings.

[0044] In a preferred embodiment, the first linkage member 420 and the second linkage member 420 are preferably circular tubular structures with a T-shaped cross-section.

[0045] As Figures 6 to 11 shown, as a preferred embodiment of the present invention, a square groove for the seedling tray 200 to pass through is provided in the middle of the fixed frame 311. The fixed frame 311 is circumferentially provided with limiting holes 312, and the limiting holes 312 cooperate with the limiting protrusions 210 distributed on the seedling tray 200, so as to ensure the stability of the seedling tray 200 on the fixed frame 311. Even during the movement of the support moving mechanism 500, the seedling tray 200 can be stably placed on the fixed frame 311. The seedling tray 200 is also distributed with micro protrusions 220 in contact with the fixed frame 311. The micro protrusions 220 can ensure that there is a certain gap between the seedling tray 200 and the fixed frame 311, which is convenient for the staff to quickly take out the seedling tray 200 in the fixed frame 311, so as to complete the rapid transplanting of the seedlings.

[0046] As Figure 4 、 Figure 5 、 Figure 6 and Figure 12 shown, as a preferred embodiment of the present invention, the support moving mechanism 500 includes a support frame 510, a support column 520, and a universal wheel 530. The support frame 510 is fixedly connected to the fixed sleeve 316, the support frame 510 is vertically slidably connected to the sliding sleeve 313, the bottom of the support frame 510 is distributed with support columns 520, and the bottom of the support column 520 is installed with universal wheels 530.

[0047] A seedling raising method for a forestry seedling raising device as described above, the method steps are as follows: 1. During the growth process of the seedlings, their own weight continuously changes and drives the fixed frame 311 to move downward. The fixed frame 311 drives the sliding sleeves 313 at the four corners to move downward synchronously. The sliding sleeves 313 drive the U-shaped column 315 to move downward. The U-shaped column 315 drives one end of the connecting rope 331 to move downward. One end of the connecting rope 331 can drive the sliding column 341 to move within the main frame 320; 2. The two sliding columns 341 approach each other inside the same main frame 320. During this process, the fixed pulley 332 guides and limits the connecting rope 331. The two sliding columns 341 can drive the two rotating rods 343 to cross-rotate by approaching each other, so that the angle between the two rotating rods 343 continuously decreases, and then drive the pin shaft 344 to move away from the seedling-growing basin 200; 3. The pin shaft 344 can change the distance between it and the adjacent pin shaft 344 through the linkage mechanism 400, so as to change the distance between two adjacent seedling-growing basins 200, avoid the situation of mutual extrusion or mutual occlusion between two adjacent seedlings during the growth process, ensure that each seedling can have sufficient growth space, facilitate the lighting system and the watering system to effectively and fully illuminate and water the seedlings, meet the growth conditions and growth needs of the seedlings, and then improve the seedling-growing efficiency and seedling-growing quality of the device; 4. Since a support moving mechanism 500 located in the middle of the receiving frame 100 is always in a static state, and the other support moving mechanisms 500 distributed on the receiving frame 100 are all in a free state, this enables the multiple support moving mechanisms 500 in the free state to move away from the static support moving mechanism 500 on the receiving frame 100 with the static support moving mechanism 500 as a reference. This can not only ensure that the multiple seedling-growing basins 200 can orderly adjust the distance between them and their adjacent seedling-growing basins 200 during the growth process of the seedlings, avoid the problem of movement interference, and improve the practicability and convenience of the device; it can also judge the growth situation of the seedlings based on the size of the receiving frame 100. When the support moving mechanism 500 moves to contact the inner wall of the receiving frame 100, the receiving frame 100 will limit it and make it unable to move normally, which can facilitate the staff to quickly judge the growth situation of the seedlings and transplant them to meet the growth conditions and production needs of the seedlings.

[0048] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A forestry seedling-raising device, comprising a seedling-raising chamber, in which a receiving frame, a lighting system, an irrigation system and a temperature control system are sequentially arranged. A plurality of seedling-raising pots and a support and moving mechanism are distributed in the receiving frame, the seedling-raising pots are located directly above the support and moving mechanism, a limiting frame for limiting and fixing the support and moving mechanism located in the middle thereof is fixed in the middle of the receiving frame, and drain holes are distributed at the four corners of the receiving frame. It is characterized in that it further comprises: A distance adjusting mechanism, which is distributed at the four diagonals of the support and moving mechanism. The distance adjusting mechanism comprises a control component, a main body frame, a connecting component and a distance adjusting component. One end of the control component is located directly above the support and moving mechanism and supports the seedling-raising pot, the other end of the control component is installed on the diagonal of the support and moving mechanism and is communicated with the main body frame, the main body frame is fixed on the diagonal of the support and moving mechanism, one end of the distance adjusting component is slidably installed inside the main body frame and is connected with the control component through the connecting component, and the other end of the distance adjusting component is connected with the distance adjusting component on the adjacent support and moving mechanism through a linkage mechanism.

2. The forestry seedling-raising device according to claim 1, characterized in that the control component comprises a fixing frame, a sliding sleeve, a first spring, a U-shaped column and a fixing sleeve. The fixing frame is located between the seedling-raising pot and the support and moving mechanism, the top of the fixing frame supports the seedling-raising pot, sliding sleeves are fixed at the four corners of the fixing frame, the sliding sleeves are vertically and slidably installed on the support and moving mechanism, a first spring is sleeved outside the sliding sleeves, the bottom of the sliding sleeve is fixedly connected with one end of the U-shaped column, the other end of the U-shaped column is slidably installed in the fixing sleeve, and the other end of the U-shaped column is connected with the distance adjusting component through the connecting component. The fixing sleeve is vertically fixed on the support and moving mechanism, and a main body frame communicated with it is fixed on the fixing sleeve.

3. The forestry seedling-raising device according to claim 2, characterized in that the distance adjusting component comprises a sliding column, a second spring, a rotating rod and a pin shaft. The sliding columns are symmetrically and slidably installed at both ends of the main body frame, a second spring is installed between the two sliding columns, and the ends of the two sliding columns close to each other are both connected with the other end of the U-shaped column through the connecting component. Rotating rods are rotatably installed at the other ends of the two sliding columns, one ends of the two rotating rods are cross-rotatably connected through the pin shaft, and the pin shaft is connected with the pin shaft on the adjacent support and moving mechanism through a linkage mechanism.

4. The forestry seedling-raising device according to claim 3, characterized in that the connecting component comprises a connecting rope and a fixed pulley. The two ends of the connecting rope are respectively fixed on the sliding column and the U-shaped column. The fixed pulley is fixed on the inner wall of the main body frame and is close to the connection part of the main body frame and the fixing sleeve, and the outer wall of the connecting rope is placed on the fixed pulley.

5. The forestry seedling-raising device according to claim 3, characterized in that the linkage mechanism includes a U-shaped plate, a first linkage member and a second linkage member. The U-shaped plate is rotatably installed on a pin shaft. A first linkage member and a second linkage member are respectively installed on two adjacent U-shaped plates. The inner wall of the first linkage member is threadedly connected to the outer wall of the second linkage member.

6. The forestry seedling-raising device according to claim 2, characterized in that a square groove for the seedling-raising pot to pass through is formed in the middle of the fixed frame. Limiting holes are respectively arranged circumferentially on the fixed frame. The limiting holes are matched with the limiting protrusions distributed on the seedling-raising pot. Micro protrusions in contact with the fixed frame are also distributed on the seedling-raising pot.

7. The forestry seedling-raising device according to claim 2, characterized in that the support moving mechanism includes a support frame, support columns and universal wheels. The support frame is fixedly connected to a fixed sleeve. The support frame is vertically slidably connected to a sliding sleeve. Support columns are distributed at the bottom of the support frame. Universal wheels are installed at the bottom of the support columns.

8. A seedling-raising method for the forestry seedling-raising device according to any one of claims 1-7, characterized in that the method steps are as follows: I. During the growth process of the seedlings, their own weight changes and drives the fixed frame to move downward. The fixed frame drives the sliding sleeves at the four corners to move downward synchronously. The sliding sleeves drive the U-shaped columns to move downward. One end of the connecting rope is driven to move downward by the U-shaped column. One end of the connecting rope drives the sliding column to move within the main frame. II. The two sliding columns approach each other inside the same main frame. During this process, the fixed pulley guides and limits the connecting rope. The two sliding columns drive the two rotating rods to cross-rotate and reduce the angle between the two rotating rods by approaching each other. The two rotating rods drive the pin shaft to move away from the seedling-raising pot by cross-rotating and reducing the angle between them. III. The pin shaft changes the distance between it and the adjacent pin shaft through the linkage mechanism. The two adjacent pin shafts change the distance between them and cooperate with the support moving mechanism to change the distance between two adjacent seedling-raising pots. IV. Since one support moving mechanism located in the middle of the receiving frame is always in a static state, and the other support moving mechanisms distributed on the receiving frame are all in a free state. The multiple support moving mechanisms in the free state are based on the static support moving mechanism and move away from this support moving mechanism on the receiving frame. The multiple support moving mechanisms drive the multiple seedling-raising pots to orderly adjust the distance between them and the adjacent seedling-raising pots, and judge the growth situation of the seedlings based on the size of the receiving frame. When the support moving mechanism moves to contact the inner wall of the receiving frame, the receiving frame limits it and prevents its normal movement.

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