A forestry engineering seedling raising device and seedling raising method

Abstract

The application discloses a forestry engineering seedling raising device and a seedling raising method, and relates to the technical field of forestry engineering. The forestry engineering seedling raising device comprises a seedling raising box. A partition plate is arranged in the seedling raising box. The partition plate is provided with an array of placing holes. Seedling raising pots are arranged in the placing holes. The seedling raising pots are slidably arranged in the placing holes. A compaction assembly is arranged at the bottom of the partition plate and located at the periphery of the seedling raising pots. A jacking assembly is arranged in the seedling raising box and used for jacking the seedling raising pots out of the placing holes. The compaction assembly and the jacking assembly are transmissionally matched. When the jacking assembly moves upwards, the jacking assembly drives the compaction assembly to move towards the seedling raising pots. In use, the cooperation of the jacking assembly and the compaction assembly is used to radially extrude and surround the pot wall and compact the soil before the seedling raising pots are jacked out, so that the soil of the seedling root group is more compact, soil scattering in the process of seedling taking and transportation is effectively avoided, and the survival rate is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forestry engineering, in particular to a forestry engineering seedling raising device and a seedling raising method. BACKGROUND

[0002] Forestry engineering is an engineering technology applied to forest cultivation, development and forest product processing with sustainable utilization of forest resources as the core. Its special afforestation seedling raising device (such as seedling raising box and pot) provides growth space and substrate for seedlings, aiming to optimize the growth environment of seedlings and improve the efficiency and quality of seedling raising.

[0003] Chinese patent publication No. CN120476902A discloses a seedling raising device for forestry engineering afforestation and a seedling raising method thereof, relating to the technical field of forestry engineering, comprising a seedling raising box, a spray head is installed on the upper part of the seedling raising box, a seedling transplanting assembly is arranged on the seedling raising box, the seedling transplanting assembly comprises a plurality of rotating rings rotatably connected to the inner side of the seedling raising box, a movable frame slidably arranged on the inner side of the seedling raising box, a plurality of movable rods installed on the upper part of the movable frame, a support disc movably connected to the end of the movable rod, and a plurality of round rods rotatably connected to the upper part of the movable frame, the round rods are movably connected between the rotating rings.

[0004] The above-mentioned device rotates the rotating ring (equivalent to the seedling pot) and separates the soil by using the scraper, then pushes the soil and seedlings upward on the support disc to realize the separation of the seedling and the seedling pot. However, in actual use, the soil is separated from the seedling pot by directly rotating the seedling pot and the scraper, and when the seedling is taken out of the seedling pot, the soil around the root of the seedling lacks compaction, and the soil is easily scattered when separated from the seedling pot, which reduces the survival rate of the seedling.

[0005] Therefore, it is necessary to provide a forestry engineering seedling raising device and a seedling raising method to solve the above technical problems. SUMMARY

[0006] The present application aims to provide a forestry engineering seedling raising device and a seedling raising method to solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a forestry engineering seedling raising device, comprising a seedling raising box; a partition is arranged in the seedling raising box, a plurality of placing holes are arranged in array on the partition, a seedling pot is arranged in the placing hole, the seedling pot is slidably placed in the placing hole, a compaction assembly is arranged at the bottom of the partition outside the periphery of the seedling pot, a jacking assembly is arranged in the seedling raising box for jacking the seedling pot out of the placing hole, the compaction assembly and the jacking assembly are drivingly connected, when the jacking assembly moves upward, the jacking assembly drives the compaction assembly to move towards the seedling pot.

[0008] As a further scheme of the present application: the compaction assembly comprises a pressing plate; a mounting disc is arranged on the top of the pressing plate, the mounting disc is slidingly embedded in the bottom of the partition plate, a sliding groove is arranged on the bottom of the mounting disc, a screw rod is rotatably arranged in the sliding groove, the pressing plate is connected with the screw rod through threads, a transmission assembly is arranged below the pressing plate, a rotating shaft is arranged on the end of the screw rod away from the seedling pot, and the rotating shaft is drivingly connected with the jacking assembly through the transmission assembly.

[0009] As a further scheme of the present application: a gear is fixedly arranged on the end of the rotating shaft away from the screw rod, a gear ring is arranged on the side of the gear away from the screw rod, the top of the gear ring is fixedly connected with the bottom of the partition plate, the screw rod is hollowly arranged, an inner rod is movably arranged in the screw rod, the end of the inner rod away from the seedling pot is fixedly connected with the rotating shaft, and an air bag is fixedly arranged on the end of the sliding groove close to the seedling pot, the air bag is communicated with the end of the screw rod close to the seedling pot.

[0010] As a further scheme of the present application: a ring-shaped groove and a square groove are arranged on the periphery of the end of the screw rod away from the seedling pot, the ring-shaped groove and the square groove are communicated, a sleeve is fixedly arranged on the end of the rotating shaft close to the seedling pot, the sleeve is sleeved on the periphery of the end of the screw rod, a sliding block is fixedly arranged on the inner wall of the sleeve, and a wedge-shaped block is elastically arranged in the screw rod.

[0011] As a further scheme of the present application: cutting knives are fixedly arranged on both ends of the bottom of the pressing plate, and the cutting knives correspond to the bottom of the seedling pot.

[0012] As a further scheme of the present application: an arc-shaped frame is elastically and slidingly arranged on the side of the pressing plate close to the seedling pot, an arc-shaped plate is elastically arranged on the side of the arc-shaped frame close to the seedling pot, a through hole is arranged in the center of the arc-shaped plate, a sealing piston corresponding to the through hole is fixedly arranged on the inner wall of the arc-shaped frame, and a rubber pad is fixedly arranged on the end of the through hole close to the seedling pot.

[0013] As a further scheme of the present application: the transmission assembly comprises a winding roller; a first pulling rope and a second pulling rope are wound on the winding roller, the end of the first pulling rope away from the winding roller is fixedly connected with the rotating shaft, the end of the second pulling rope away from the winding roller is fixedly arranged with a clamping block, and the clamping block is slidingly matched with the jacking assembly.

[0014] As a further scheme of the present application: the jacking assembly comprises a top column; the top column is arranged on the inner bottom of the seedling box, a top ring is sleeved on the periphery of the top column, an opening is arranged on the bottom of the top ring, the clamping block is slidingly matched with the opening, a vertical groove is arranged on the side wall of the top column, a protrusion is fixedly arranged on the inner wall of the top ring, and the protrusion is slidingly matched with the vertical groove.

[0015] As a further scheme of the present application: the side wall of the top column is provided with a limiting groove in communication with the vertical groove, the protrusion is elastically connected with a limiting block in sliding fit with the limiting groove, the limiting block is elastically connected with a positioning plate at the center of the end away from the top column, the end of the positioning plate away from the limiting block slides into the gap, one side of the clamping block is provided with a positioning opening in sliding fit with the positioning plate, the center of the top column is elastically connected with a trigger rod, the limiting groove is elastically connected with a square rod, and the periphery of the trigger rod is provided with a conical table in sliding fit with the end of the square rod away from the top ring.

[0016] A use method of the forestry engineering seedling raising device according to any one of the preceding devices, comprising the following steps,

[0017] S1, starting the jacking assembly to move upwards;

[0018] S2, the jacking assembly moves upwards first, the compaction assembly is driven by the transmission to perform radial extrusion and surrounding compaction on the sidewall of the seedling pot, and the cutting knife is used to cut the root of the pot bottom;

[0019] S3, after the compaction operation is completed, the transmission assembly and the jacking assembly are disengaged from the transmission fit, the compaction assembly is automatically reset, and the jacking assembly continues to move upwards to push the bottom of the seedling pot, so that the seedling pot is pushed out of the placement hole of the partition plate;

[0020] S4, after the seedling in the seedling pot is taken away, the jacking assembly is reset.

[0021] Compared with the prior art, the present application has the following beneficial effects: during use, through the cooperation of the jacking assembly and the compaction assembly, the sidewall of the seedling pot is first subjected to radial extrusion and surrounding compaction before the seedling pot is pushed out, so that the soil of the root ball of the seedling is more compacted, the soil scattering in the process of seedling taking and transportation is effectively avoided, and the survival rate is ensured; at the same time, the coiled roots extending out of the water hole in the bottom of the pot are automatically cut by the cutting knife, so that the problem of root damage caused by manual seedling taking is solved; in addition, the negative pressure adsorption mechanism ensures that the flexible seedling pot can be reset smoothly after being pressed and separated from the soil. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front three-dimensional structure schematic diagram of the present application.

[0023] Figure 2 It is a structure schematic diagram of the compaction assembly and the jacking assembly in the present application.

[0024] Figure 3 It is a structure schematic diagram of the compaction assembly in the present application.

[0025] Figure 4 It is a structure schematic diagram of the tooth ring in the present application.

[0026] Figure 5Structure schematic diagram of gear in the application.

[0027] Figure 6 Structure schematic diagram of gear in the application. Figure 4

[0028] Figure 7 Structure schematic diagram of gear in the application. Figure 5

[0029] Figure 8 Structure schematic diagram of sealing piston in the application.

[0030] Figure 9 Structure schematic diagram of trigger rod in the application.

[0031] Figure 10 Structure schematic diagram of clamping block in the application.

[0032] Figure 11 Structure schematic diagram of gear in the application. Figure 8

[0033] In the figure: 1, seedling box; 2, partition; 3, seedling pot; 4, top column; 5, pressing plate; 6, top ring; 7, connecting rod; 8, transmission assembly; 81, first pull rope; 82, second pull rope; 9, mounting disc; 10, gear ring; 11, cutting knife; 12, arc plate; 13, through hole; 14, sliding groove; 15, screw rod; 16, inner rod; 17, air bag; 18, rotating shaft; 181, gear; 182, sleeve; 183, sliding block; 184, wedge block; 185, annular groove; 186, square groove; 19, cavity; 20, sealing piston; 21, arc frame; 22, rubber pad; 23, trigger rod; 24, vertical groove; 25, square rod; 26, limiting block; 27, positioning plate; 28, clamping block; 29, buckle. DETAILED DESCRIPTION

[0034] Please refer to Figures 1-11 ​​​The forestry engineering seedling raising device and seedling raising method of the embodiment of the application comprise a seedling raising box 1, a partition plate 2 is arranged in the seedling raising box 1, and a spacing exists between the partition plate 2 and the seedling raising box 1, that is, the partition plate 2 is arranged at a position close to the top of the seedling raising box 1, a plurality of placing holes are arranged in an array on the partition plate 2, the placing holes are arranged in a square array on the partition plate 2, a seedling raising pot 3 is arranged in the placing hole, the seedling raising pot 3 is a container for forestry seedling raising, the seedling raising pot 3 is slidably arranged in the placing hole, a compaction assembly is arranged at the bottom of the partition plate 2 and outside the periphery of the seedling raising pot 3, a jacking assembly for jacking the seedling raising pot 3 out of the placing hole is arranged in the seedling raising box 1, the compaction assembly and the jacking assembly are in transmission cooperation, when the jacking assembly moves upward, the jacking assembly drives the compaction assembly to move towards the seedling raising pot 3, in use, when it is necessary to transplant the seedling raising completed seedlings in the seedling raising pot 3, the jacking assembly is started to move upward to push the seedling raising pot 3 upward, so that the seedling raising pot 3 is pushed out of the placing hole, thereby facilitating the transplanting and taking of the seedlings, and in this process, the upward movement of the jacking assembly first drives the compaction assembly to move towards the seedling raising pot 3, the seedling raising pot 3 is made of flexible plastic material, so the compaction assembly will extrude the seedling raising pot 3, thereby achieving a certain degree of extrusion of the soil in the seedling raising pot 3, so that the soil around the root part of the seedlings is more compact, and the problem of soil scattering around the root part of the seedlings in the subsequent taking and transplanting process is avoided, thereby avoiding the risk of reduced survival rate of the seedlings caused by soil scattering.

[0035] Please refer to Figures 1-4 Preferably, the compaction assembly comprises a pressing plate 5, a mounting disc 9 is arranged at the top of the pressing plate 5, the mounting disc 9 is slidably embedded in the bottom of the partition plate 2, and a circular hole with the same size as the placing hole is arranged at the center of the mounting disc 9, so that the placing of the seedling raising pot 3 is facilitated, the pressing plate 5 is arranged in a cross array at the bottom of the mounting disc 9, four groups of the pressing plate 5 are arranged at the bottom of the mounting disc 9, a sliding groove 14 is arranged at the bottom of the mounting disc 9 and in sliding connection with the pressing plate 5, when the pressing plate 5 moves in the sliding groove 14 to the end of the sliding groove 14 close to the seedling raising pot 3, the pressing plate 5 extrudes the sidewall of the seedling raising pot 3, thereby making the soil in the seedling raising pot 3 more compact, and further helping the flexible sidewall of the seedling raising pot 3 to separate from the compacted root mass, thereby facilitating the taking of the seedlings from the seedling raising pot 3 without the need for personnel to use tools to dig the seedlings, and avoiding the problem of soil scattering caused by loose soil during taking, and the problem of a large amount of soil falling off during taking caused by the high adhesion of loose soil to the inner wall of the seedling raising pot 3.

[0036] Please refer to Figures 3-6 Preferably, a screw rod 15 is rotatably arranged in the sliding groove 14, and the pressing plate 5 and the screw rod 15 are in threaded connection, when the screw rod 15 rotates, the pressing plate 5 moves close to or away from the seedling raising pot 3 under the limiting and guiding action of the sliding groove 14.

[0037] Please refer to Figures 1-11Preferably, the lower part of the pressing plate 5 is provided with a transmission assembly 8, and the end of the screw rod 15 away from the seedling pot 3 is provided with a rotating shaft 18, which is in transmission connection with the jacking assembly through the transmission assembly 8. When the jacking assembly moves upward, the jacking assembly drives the rotating shaft 18 to rotate through the transmission assembly 8. At this time, the rotation of the rotating shaft 18 drives the rotation of the screw rod 15, and the rotation of the screw rod 15 drives the pressing plate 5 to move in the sliding groove 14 towards the seedling pot 3, thereby completing the extrusion of the seedling pot 3.

[0038] In order to completely extrude the periphery of the seedling pot 3 by the pressing plate 5, the end of the rotating shaft 18 away from the screw rod 15 is fixedly provided with a gear 181, and the side of the gear 181 away from the screw rod 15 is provided with a tooth ring 10, the top of the tooth ring 10 is fixedly connected with the bottom of the partition plate 2, and the tooth ring 10 is arranged above the gear 181. When the pressing plate 5 moves to the end of the sliding groove 14 close to the seedling pot 3, the rotating shaft 18 moves towards the tooth ring 10, thereby moving the gear 181 to engage with the tooth ring 10. Then, the jacking assembly continues to move to drive the rotating shaft 18 and the gear 181 to rotate through the transmission assembly 8. At this time, the rotation of the rotating shaft 18 no longer drives the rotation of the screw rod 15, but the rotation of the gear 181 drives the rotation of the mounting disc 9 under the action of the fixed tooth ring 10. The rotation of the mounting disc 9 drives the pressing plate 5 to rotate along the periphery of the seedling pot 3 to complete the extrusion of all side walls of the seedling pot 3, thereby realizing the complete extrusion and compaction of the soil in the seedling pot 3 by the pressing plate 5 surrounding the seedling pot 3.

[0039] It should be noted that, in order to automatically reset the pressing plate 5, a torsion spring or a clock spring is arranged at the rotating connection between the screw rod 15 and the mounting disc 9. In this way, after the screw rod 15 is driven to move the pressing plate 5 towards the seedling pot 3 and the jacking assembly and the compaction assembly are disengaged, the screw rod 15 can be reset under the action of the torsion spring or the clock spring, thereby moving the pressing plate 5 to reset.

[0040] In order to make the rotating shaft 18 move to the gear ring 10 when the pressing plate 5 moves to the end of the sliding groove 14 close to the nursery pot 3, the rotating shaft 18 is moved to the gear ring 10, and the gear 181 is engaged with the gear ring 10. Preferably, the screw rod 15 is hollow, the inner rod 16 is movably arranged in the screw rod 15, the end of the inner rod 16 away from the nursery pot 3 is fixedly connected with the rotating shaft 18, the end of the inner rod 16 close to the nursery pot 3 is fixedly arranged with a tension spring between the end of the screw rod 15, the tension spring has a certain torsion, the air bag 17 is fixedly arranged in the end of the sliding groove 14 close to the nursery pot 3, the air bag 17 is communicated with the end of the screw rod 15 close to the nursery pot 3, the inner wall of the mounting disc 9 close to the nursery pot 3 is provided with the cavity 19, the air bag 17 and the screw rod 15 are communicated through the cavity 19, the inner rod 16 and the inner wall of the screw rod 15 are sealingly and slidably arranged, that is, the inner rod 16 can rotate and slide in the screw rod 15, when the pressing plate 5 moves to the end of the sliding groove 14, the pressing plate 5 extrudes the air bag 17 so that the gas in the air bag 17 enters the screw rod 15, and then the inner rod 16 is pushed to move to the gear ring 10, and then the rotating shaft 18 is pushed to move and the gear 181 is engaged with the gear ring 10.

[0041] When the gear 181 engages with the tooth ring 10, in order to let the rotating shaft 18 no longer drive the screw rod 15 to rotate, preferably, the outer periphery of the end of the screw rod 15 away from the nursery pot 3 is provided with an annular groove 185 and a square groove 186, the annular groove 185 and the square groove 186 are communicatively arranged, and the square groove 186 is arranged on the side of the annular groove 185 close to the nursery pot 3, the square groove 186 is arranged in a square structure, the annular groove 185 is arranged in a ring structure, the end of the rotating shaft 18 close to the nursery pot 3 is fixedly provided with a sleeve 182, the sleeve 182 is sleeved on the outer periphery of the end of the screw rod 15, and the inner wall of the sleeve 182 is fixedly provided with a sliding block 183 which is slidingly matched with the square groove 186, and the sliding block 183 is also slidingly matched with the annular groove 185, the square groove 186 is arranged in multiple groups in an annular array along the center of the screw rod 15, the number of the sliding blocks 183 is the same as that of the square grooves 186, and the sliding blocks 183 are arranged in an annular array along the center of the sleeve 182, the screw rod 15 is elastically provided with a wedge-shaped block 184 which extends into the annular groove 185, and the end of the wedge-shaped block 184 away from the screw rod 15 is provided with an inclined surface; when the gear 181 engages with the tooth ring 10, the sliding block 183 is separated from the square groove 186 and enters the annular groove 185, at this time, the rotating shaft 18 rotates and no longer drives the screw rod 15 to rotate, and the rotating shaft 18 also does not have the problem of being stuck due to the screw rod 15 being unable to rotate, and through the end inclined surface of the wedge-shaped block 184, at this time, the sliding block 183 does not interfere with the wedge-shaped block 184, that is, the rotating shaft 18 rotates and drives the sliding block 183 to rotate, but the sliding block 183 is in the annular groove 185, and the rotating direction of the sliding block 183 corresponds to the inclined surface of the wedge-shaped block 184, so when the sliding block 183 meets the wedge-shaped block 184, the sliding block 183 will compress the wedge-shaped block 184 into the screw rod 15 through the inclined surface; when the screw rod 15 rotates to reset, the rotating shaft 18 is driven to rotate to reset through the interference action of the wedge-shaped block 184 and the sliding block 183.

[0042] In specific use, in the initial state without transplanting seedlings in the seedling pot 3, the plurality of pressing plates 5 are at the end of the sliding groove 14 away from the seedling pot 3, the air bag 17 is in the inflated state, the inner rod 16 is in the position close to the seedling pot 3 in the screw rod 15, the sliding block 183 is in the square groove 186, the wedge block 184 elastically extends into the annular groove 185, and the gear 181 is separated from the tooth ring 10; when it is necessary to transplant seedlings in the seedling pot 3, the lifting assembly is started to move upward, the rotating shaft 18 is driven to rotate through the transmission assembly 8, the rotating shaft 18 is driven to rotate through the sleeve pipe 182, the sliding block 183 and the square groove 186, the screw rod 15 is driven to rotate, the pressing plate 5 is moved to the seedling pot 3, when the pressing plate 5 moves to the end of the sliding groove 14 close to the seedling pot 3, the pressing plate 5 realizes a certain degree of extrusion on the seedling pot 3, at the same time, the pressing plate 5 moving to the end of the sliding groove 14 also realizes the extrusion on the air bag 17, so that the gas in the air bag 17 enters the screw rod 15, the inner rod 16 is pushed to move to the direction of the tooth ring 10, the inner rod 16 is moved, the rotating shaft 18 is moved, the gear 181 is engaged with the tooth ring 10, the sliding block 183 is separated from the square groove 186 and enters the annular groove 185, and then the lifting assembly continues to move upward to drive the rotating shaft 18 to rotate through the transmission assembly 8, the rotating shaft 18 rotates to drive the installation disc 9 to rotate around the seedling pot 3 by a certain angle through the cooperation of the gear 181 and the tooth ring 10, the installation disc 9 rotates to drive the pressing plate 5 to rotate around the seedling pot 3 to compact the soil, which avoids the dead angle of compaction and the problem of the soil around the roots of seedlings falling off, and also facilitates the complete removal of the root group of seedlings from the seedling pot 3.

[0043] Please refer to Figures 2-4 , Figure 8 , preferably, the bottom of the seedling pot 3 is usually provided with a water outlet hole, and the roots of seedlings are easy to grow to the water outlet hole during seedling culture, causing the problem of root entanglement, preferably, the bottom of the pressing plate 5 is fixedly provided with a cutting knife 11 at both ends, the cutting knife 11 corresponds to the bottom of the seedling pot 3, in use, when the pressing plate 5 moves to the seedling pot 3, the cutting knife 11 is pushed to move to the bottom of the seedling pot 3, and then the installation disc 9 rotates to drive the cutting knife 11 to rotate, so as to cut the root entanglement around the bottom of the seedling pot 3, which avoids the problem that the root entanglement of seedlings during seedling culture causes the seedlings to be unable to separate from the seedling pot 3 during transplanting.

[0044] Please refer to Figures 1-3 , Figure 9 , preferably, the transmission assembly 8 comprises a winding roller, the first pull rope 81 and the second pull rope 82 are wound on the winding roller, one end of the first pull rope 81 away from the winding roller is fixedly connected with the rotating shaft 18, one end of the second pull rope 82 away from the winding roller is fixedly provided with a clamping block 28, the clamping block 28 is in sliding cooperation with the lifting assembly, and both ends of the winding roller are fixedly connected with the bottom of the seedling box 1 through fixed blocks.

[0045] It should be noted that: the winding roller is provided with two winding discs, the first pull rope 81 and the second pull rope 82 correspond to one winding disc respectively, the excess part of the first pull rope 81 is wound on the rotating shaft 18, and the excess part of the second pull rope 82 is wound on the winding roller.

[0046] Specifically, in the initial state, the excess part of the first pull rope 81 is wound on the rotating shaft 18, the excess part of the second pull rope 82 is wound on the winding roller, and the clamping block 28 is in sliding fit with the jacking assembly; when the jacking assembly moves upward, it drives the clamping block 28 to move upward, the movement of the clamping block 28 pulls the second pull rope 82 to spread from the winding roller, thereby driving the winding roller to rotate, so that the first pull rope 81 is wound, and the rotating shaft 18 rotates.

[0047] Please refer to Figures 1-10 , preferably, the jacking assembly comprises a top column 4; the top column 4 is arranged at the bottom of the seedling box 1 and corresponds to the bottom of the seedling pot 3, the number and position of the top column 4 are matched with the number and position of the seedling pot 3 respectively, the outer periphery of the top column 4 is sleeved with a top ring 6, and a plurality of top rings 6 are fixedly connected through connecting rods 7, the bottom of the partition plate 2 is fixedly provided with an air cylinder, the telescopic output end of the air cylinder is fixedly connected with the top ring 6 through the connecting rod 7, the diameter size of the top column 4 is smaller than the diameter size of the seedling pot 3, the bottom of the top ring 6 is provided with an opening, the clamping block 28 is in sliding fit with the opening, and the number and position of the opening and the clamping block are matched respectively.

[0048] Further, the sidewall of the top column 4 is provided with a vertical groove 24, and the vertical groove 24 is arranged in a ring array along the center of the top column 4, the inner wall of the top ring 6 is fixedly provided with a protrusion, the position of the protrusion corresponds to the opening, the protrusion is in sliding fit with the vertical groove 24, the sidewall of the top column 4 is provided with a limiting groove in communication with the vertical groove 24, that is, the limiting groove is arranged in vertical position with the vertical groove 24, the limiting groove is arranged in the middle and lower part of the vertical groove 24, the protrusion is elastically connected with a limiting block 26 in sliding fit with the limiting groove, and the height of the limiting groove is greater than the height of the limiting block 26.

[0049] Still further, the end of the limiting block 26 away from the top column 4 is elastically connected with a positioning plate 27, the end of the positioning plate 27 away from the limiting block 26 slides into the opening, the side of the clamping block 28 close to the protrusion is provided with a positioning port in sliding fit with the positioning plate 27, the bottom of the seedling box 1 is fixedly provided with a buckle 29, the buckle 29 is sleeved on the outer periphery of the second pull rope 82, and the end of the clamping block 28 away from the protrusion is in sliding fit with the buckle 29, the position of the clamping block 28 is limited through the setting of the positioning plate 27, avoiding the problem that the clamping block 28 is not limited when the top ring 6 moves upward and is separated from the opening.

[0050] The top column 4 is preferably elastically connected with a trigger rod 23, and the limiting slot is elastically connected with a square rod 25. The trigger rod 23 is provided with a tapered table at the periphery, and the tapered table is in sliding fit with the square rod 25 away from the top ring 6.

[0051] It should be noted that the distance between the limiting slot and the top end of the vertical slot 24 meets the requirement that the top column 4 pushes the nursery pot 3 out of the placing hole. The distance between the bottom of the limiting slot and the bottom of the vertical slot 24 meets the requirement that the top ring 6 moves up through the cooperation of the transmission assembly 8, the rotating shaft 18 and the screw rod 15, so that the pressing plate 5 moves to the end of the sliding groove 14, the mounting disc 9 rotates by a certain angle, and the limiting slot itself has a height dimension that meets the requirement that the mounting disc 9 and the pressing plate 5 move and reset.

[0052] In actual use, in the initial state, the top ring 6 is at the bottom in the nursery box 1, the clamping block 28 is matched with the gap, the positioning plate 27 extends into the positioning opening, the limiting block 26 is elastically retracted in the protrusion, the top of the top column 4 is in fit with the bottom of the nursery pot 3, the trigger rod 23 is compressed in the top column 4, the top height of the tapered table on the trigger rod 23 is lower than the bottom height of the limiting slot, and the end of the square rod 25 away from the trigger rod 23 is away from the limiting slot, that is, there is a gap between the square rod 25 and the end of the limiting slot away from the trigger rod 23. When the cylinder is started to drive the top ring 6 to move up, the top ring 6 moves to drive the clamping block 28 to move, the clamping block 28 moves to horizontally pull the second pull rope 82 to be scattered from the winding roller under the limitation of the clasp 29, so that the compaction assembly is completed to compact the soil in the nursery pot 3 through the cooperation of the winding roller and the first pull rope 81, and the bottom of the nursery pot 3 is cut to possibly appear the nursery disc roots. When the compaction assembly is completed to compact the soil in the nursery pot 3, the top ring 6 also moves to the limiting slot, at this time, the protrusion corresponds to the limiting slot, and then the limiting block 26 moves to extend into the limiting slot under the elastic action. The movement of the limiting block 26 makes the positioning plate 27 move to separate from the positioning opening, and then the clamping block 28 and the gap are separated. At this time, the top ring 6 continues to move up to the top of the limiting slot, and in this process, the compaction assembly is automatically reset. When the top ring 6 moves to make the limiting block 26 fit with the top of the limiting slot, the top column 4 is driven to move up, the top column 4 moves up to push the nursery pot 3 out of the placing hole, so as to facilitate the nursery seedlings in the nursery pot 3 to be taken and transplanted. When the seedlings in a group of nursery pots 3 are taken, the weight of the nursery pot 3 is light, at this time, the trigger rod 23 moves up to protrude from the top of the top column 4 under the corresponding elastic action, so that the tapered table moves to push the square rod 25 to move to the limiting slot, and the limiting block 26 is pushed out of the limiting slot. When the limiting block 26 is pushed out of the limiting slot, the top column 4 automatically falls, so as to make the nursery pot 3 fall, thereby facilitating personnel to take the subsequent seedlings. When all the nursery seedlings are taken out of the nursery pot 3, the cylinder is started to drive the top ring 6 to reset, so that the clamping block 28 is matched with the gap, and the positioning plate 27 is matched with the positioning opening.

[0053] Please refer to Figures 1-4 ,Figure 8 、 Figure 11 , preferably, the pressing plate 5 is elastically and slidably provided with an arc-shaped frame 21 close to one side of the seedling pot 3, the arc-shaped frame 21 is elastically and slidably provided with an arc-shaped plate 12 close to one side of the seedling pot 3, the arc-shaped plate 12 is provided with a through hole 13 in the center, the inner wall of the arc-shaped frame 21 is fixedly provided with a sealing piston 20 corresponding to the through hole 13, one end of the through hole 13 close to the seedling pot 3 is fixedly provided with a rubber pad 22, and the arc-shaped frame 21 rotates on the pressing plate 5 along the arc direction, so that when the installation disc 9 drives the pressing plate 5 to rotate to press the seedling pot 3, the arc-shaped plate 12 and the pressing plate 5 adsorbed on the side wall of the seedling pot 3 will not interfere with each other, the arc-shaped plate 12 slides on the arc-shaped frame 21 in the direction relative to the seedling pot 3, so that the negative pressure in the through hole 13 can be better generated. In actual use, in the initial state, the arc-shaped frame 21 is retracted in the side wall of the pressing plate 5, and the arc-shaped plate 12 protrudes from the side wall of the arc-shaped frame 21. When the pressing plate 5 moves towards the seedling pot 3, the arc-shaped plate 12 first contacts the side wall of the seedling pot 3 and is compressed into the arc-shaped frame 21 along with the movement of the pressing plate 5. In this process, the rubber pad 22 is fully attached to the side wall of the seedling pot 3, and the sealing piston 20 is in sealing and sliding fit with the through hole 13. In this way, after the pressing plate 5 moves towards the seedling pot 3 to complete the compaction of the soil in the seedling pot 3, the sealing piston 20 fits with the through hole 13, and the rubber pad 22 is attached to the side wall of the seedling pot 3. When the pressing plate 5 moves back to the original position, the arc-shaped frame 21 and the arc-shaped plate 12 are relatively separated, and the sealing piston 20 is relatively separated from the through hole 13. At this time, the pressing plate 5 pulls the side wall of the seedling pot 3 back to the original position through the arc-shaped plate 12, the through hole 13 and the rubber pad 22, avoiding the problem that the side wall of the seedling pot 3 cannot be reset after being pressed. In addition, since the sealing piston 20 can deform, when the arc-shaped plate 12 and the arc-shaped frame 21 cannot move relative to each other, the continuous movement of the pressing plate 5 will generate a force that allows the sealing piston 20 to deform, so that the sealing piston 20 is separated from the through hole 13, and then the rubber pad 22 is separated from the side wall of the seedling pot 3.

Claims

1. A forestry engineering seedling raising device, comprising a seedling box; characterized in that, The seedling box is equipped with a partition, and the partition is arranged with a row of placement holes. A seedling pot is placed in each placement hole and slides in the placement hole. A compaction component is provided at the bottom of the partition around the seedling pot. The seedling box is equipped with a lifting component for pushing the seedling pot upward out of the placement hole. The compaction component and the lifting component are driven to work together. When the lifting component moves upward, it causes the compaction component to move towards the seedling pot. The compaction assembly includes a pressure plate; a mounting plate is provided on the top of the pressure plate, the mounting plate is slidably embedded in the bottom of the partition plate, a sliding groove is provided on the bottom of the mounting plate, a screw is rotatably arranged in the sliding groove, the pressure plate and the screw are connected by threads, a transmission assembly is provided below the pressure plate, and a rotating shaft is provided at the end of the screw away from the seedling pot, the rotating shaft is connected to the lifting assembly through the transmission assembly; A gear is fixedly installed at the end of the rotating shaft away from the screw. A toothed ring is installed on the side of the gear away from the screw. The top of the toothed ring is fixedly connected to the bottom of the partition. The screw is hollow. An inner rod is movably installed inside the screw. The end of the inner rod away from the seedling pot is fixedly connected to the rotating shaft. An air bladder is fixedly installed at the end of the slide groove near the seedling pot. The air bladder is connected to the end of the screw near the seedling pot. The transmission assembly includes a winding roller; a first pull rope and a second pull rope are wound on the winding roller, the end of the first pull rope away from the winding roller is fixedly connected to the rotating shaft, and a locking block is fixedly provided at the end of the second pull rope away from the winding roller, the locking block being slidably engaged with the lifting assembly.

2. The forestry engineering seedling raising device according to claim 1, characterized in that, The screw has an annular groove and a square groove on its outer periphery at the end away from the seedling pot. The annular groove and the square groove are connected. A sleeve is fixedly installed at the end of the rotating shaft close to the seedling pot. The sleeve is fitted around the end of the screw, and a slider is fixedly installed on the inner wall of the sleeve. A wedge block is elastically installed inside the screw.

3. A forestry engineering seedling raising device according to claim 2, characterized in that, The bottom two ends of the pressure plate are fixedly equipped with cutting blades, which correspond to the bottom of the seedling pot.

4. A forestry engineering seedling raising device according to claim 1, characterized in that, An arc-shaped frame is elastically slidably provided on the side of the pressure plate near the seedling pot. An arc-shaped plate is elastically provided on the side of the arc-shaped frame near the seedling pot. A through hole is provided in the center of the arc-shaped plate. A sealing piston corresponding to the through hole is fixedly provided on the inner wall of the arc-shaped frame. A rubber pad is fixedly provided at the end of the through hole near the seedling pot.

5. A forestry engineering seedling raising device according to claim 1, characterized in that, The lifting assembly includes a top column; the top column is set at the bottom of the seedling box, a top ring is sleeved around the top column, a notch is provided at the bottom of the top ring, the locking block slides with the notch, a vertical groove is provided on the side wall of the top column, and a protrusion is fixedly provided on the inner wall of the top ring, the protrusion slides with the vertical groove.

6. A forestry engineering seedling raising device according to claim 5, characterized in that, The top column has a limiting groove communicating with the vertical groove inside its side wall. The protrusion has a limiting block that slides in the limiting groove. The center of the limiting block away from the top column has a positioning plate that is elastically connected. The end of the positioning plate away from the limiting block slides into the notch. One side of the locking block has a positioning port that slides and adapts to the positioning plate. The center of the top column has a trigger rod that is elastically connected. The limiting groove has a square rod that is elastically connected. The trigger rod has a conical platform around its periphery. The conical platform slides and fits against the end of the square rod away from the top ring.

7. A method of using a forestry engineering seedling raising device as described in any one of claims 1-6, characterized in that, Includes the following steps, S1. Start the lifting assembly to move upwards; S2. The lifting component moves upward by first driving the compaction component to radially squeeze and compact the side wall of the seedling pot, and then using a cutting blade to cut the bottom root plate of the pot. S3. After the compaction operation is completed, the transmission component and the lifting component are disengaged, the compaction component automatically resets, and the lifting component continues to move upward to push the bottom of the seedling pot out of the placement hole of the partition. S4. After removing the seedlings from the seedling pot, the lifting component is reset.

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