Tobacco planting and seedling raising test device

Abstract

The invention relates to the technical field of tobacco planting, in particular to a tobacco planting and seedling raising test device which comprises a disinfection box, a plurality of vertical rods are fixed to the top of the disinfection box, a top plate is fixed to the tops of the vertical rods, a flexible filter layer is arranged in the disinfection box, and a first fixing ring is fixed to the interior of the flexible filter layer; a second fixing ring is fixed outside the flexible filtering layer, a hydraulic cylinder is fixedly installed at the outer bottom of the disinfection box, a hydraulic rod is fixed to the telescopic end of the hydraulic cylinder, the hydraulic rod penetrates through the bottom of the disinfection box and is in sliding connection with the bottom of the disinfection box, a rotating seat is rotationally connected to the top of the hydraulic rod, and a blow-drying mechanism and a rotating mechanism are connected to the rotating seat. After the tobacco seeds are disinfected, the tobacco seeds are driven by the flexible filter layer to move upwards, and the tobacco seeds in the rising process are blow-dried by gas exhausted by the gas pipe, so that pollution caused by disinfectant residues to a seedling culture substrate or soil is avoided, and the germination rate of the tobacco seeds is increased.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco planting, in particular to a tobacco planting and seedling raising test device. Background Art

[0002] Tobacco is an annual herb of the genus Nicotiana in the family Solanaceae. The leaves are oblong-lanceolate, lanceolate, oblong or ovate, gradually pointed at the apex, narrowed at the base to become ear-shaped and semi-amplexicaulous, with inconspicuous petioles or wing-shaped; the inflorescence is conical, the calyx is tubular or tubular-bell-shaped, the lobes are triangular-lanceolate, the corolla is funnel-shaped, light yellow, light green, red or pink, with yellow at the base; the capsule is ovoid or elliptical, almost as long as the persistent calyx; the seeds are round or broadly oblong, brown; the flowering and fruiting period is summer and autumn.

[0003] During tobacco planting, seedling raising experiments need to be carried out many times. The main purpose is to optimize seedling raising conditions through scientific experiments, improve the quality and yield of tobacco seedlings, reduce production costs, enhance risk resistance, and provide support for the sustainable development of the tobacco industry.

[0004] During the tobacco planting and seedling raising experiment, the surface or inside of tobacco seeds may carry pathogens such as fungi, bacteria or viruses. This requires killing these pathogens through disinfection, reducing the risk of disease transmission, ensuring the quality of seedlings, and improving the germination rate. In the prior art, tobacco seeds are generally disinfected by soaking them in disinfectant, and then the tobacco seeds are fished out after disinfection. However, the disinfectant remaining on the surface of the tobacco seeds after they are fished out may contaminate the seedling substrate or soil, thereby affecting seed germination or damaging the seedlings. Summary of the invention

[0005] The object of the present invention is to provide a tobacco planting and seedling raising test device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A tobacco planting and seedling test device comprises a disinfection box, a plurality of vertical poles are fixed on the top of the disinfection box, a top plate is fixed on the top of the vertical poles, a flexible filter layer is arranged inside the disinfection box, a first fixed ring is fixed inside the flexible filter layer, a second fixed ring is fixed outside the flexible filter layer, an outer wall of the second fixed ring is slidably connected to the inner wall of the disinfection box, a hydraulic cylinder is fixedly installed on the outer bottom of the disinfection box, a hydraulic rod is fixed on the telescopic end of the hydraulic cylinder, the hydraulic rod passes through the bottom of the disinfection box and is slidably connected to the bottom of the disinfection box, the hydraulic rod passes through the first fixed ring and is fixedly connected to the first fixed ring, wherein the second fixed ring is connected to a lifting mechanism, when the hydraulic rod drives the first fixed ring to move upward, the lifting mechanism drives the second fixed ring to move upward synchronously, the top of the hydraulic rod is rotatably connected to a rotating seat, the rotating seat is connected to a drying mechanism and a rotating mechanism, when the hydraulic rod drives the first fixed ring to move upward, the drying mechanism is used to dry the tobacco seeds after disinfection on the surface of the flexible filter layer, and at the same time, the rotating mechanism drives the drying mechanism to make a circular motion through the rotating seat. When the tobacco seeds are disinfected, the hydraulic cylinder is used to drive the hydraulic rod to move upward. When the hydraulic rod moves upward, on the one hand, it directly drives the first fixed ring to move upward, and on the other hand, it drives the second fixed ring to move upward synchronously through the lifting mechanism. The flexible filter layer is driven upward by the synchronous upward movement of the first and second fixed rings, and at the same time, the drying mechanism blows air to the tobacco seeds. In addition, when the hydraulic rod moves upward, the rotating mechanism can also drive the rotating seat to rotate. When the rotating seat rotates, it drives the drying mechanism to move in a circle, so that the gas discharged by the drying mechanism can pass through the surface of the flexible filter. When the first and second fixed rings rise to the top of the disinfection box, the lifting mechanism no longer drives the second fixed ring to move upward, and the hydraulic rod continues to drive the first fixed ring to move upward. During the upward movement of the first fixed ring, the middle position of the flexible filter layer can be stretched, so that the flexible filter layer is deformed, and the tobacco seeds above the flexible filter layer slide downward along the flexible filter layer.

[0008] Preferably: the rotating mechanism includes a support rod fixedly connected to the top of the rotating seat, a limiting cylinder is fixed to the bottom of the top plate, the upper end of the support rod passes through the bottom of the limiting cylinder and extends into the interior of the limiting cylinder, wherein the support rod is slidably connected to the bottom of the limiting cylinder, and a limiting assembly is provided inside the limiting cylinder. When the support rod moves up and down relative to the limiting cylinder, the limiting assembly is used to limit the support rod, thereby forcing the support rod to rotate; when the hydraulic rod moves upward, it will also drive the support rod to move upward through the rotating seat, and when the support rod moves upward, its upper end will slide inside the limiting cylinder.

[0009] Preferably: the limiting assembly includes a threaded groove arranged on the inner wall of the limiting cylinder, wherein a convex point adapted to the threaded groove is fixed on the outside of the support rod, and the convex point is located inside the threaded groove and is slidably connected to the threaded groove; when the support rod moves upward, the convex point on its outside will slide inside the threaded groove inside the guide cylinder, and under the limitation of the threaded groove, the convex point will rotate upward inside the threaded groove, thereby driving the support rod to rotate upward, so that the support rod is in a spiral ascending state.

[0010] Preferably: the blowing mechanism comprises a plurality of push plates fixedly connected to the side walls of the rotating seat and distributed in a circle about the hydraulic rod, each of the push plates is provided with a push rod, a pressure cylinder is provided above the push rod, the push rod passes through the bottom of the pressure cylinder and extends into the interior of the pressure cylinder, the push rod is slidably connected to the bottom of the pressure cylinder, a piston is fixed on the upper end of the push rod, the piston is slidably connected to the inner wall of the pressure cylinder, an air pipe is connected above the piston and on the side wall of the pressure cylinder, one end of the air pipe is connected to the interior of the pressure cylinder, and the other end of the air pipe is arranged toward the flexible filtering layer, a support assembly is provided at the bottom of the top plate, and the support assembly is used to support the pressure cylinder; when the hydraulic rod moves upward, it also drives the rotating seat to move upward, and the rotating seat drives the push rod to move upward through the push plate, and when the push rod moves upward, it drives the piston to move upward inside the pressure cylinder, and the piston squeezes the gas above it, so that the gas inside the pressure cylinder enters the branch pipe through the air pipe.

[0011] Preferably: the bottom of the air pipe is connected to a horizontally arranged branch pipe, the end of the branch pipe is closed, and a plurality of equally spaced air outlet holes are provided at the bottom of the branch pipe; the gas inside the air pressure cylinder enters the air pipe and directly enters the branch pipe, and is finally discharged from the air outlet holes at the bottom of the branch pipe. The blowing range can be effectively improved by means of a plurality of equally spaced air outlet holes, thereby ensuring the drying effect of the tobacco seeds.

[0012] Preferably: the support assembly includes a support ring fixedly connected to the top of the air cylinder, a limiting ring adapted to the support ring is fixed to the bottom of the top plate, and the outer wall of the support ring is rotatably connected to the inner wall of the limiting ring; the air cylinder is supported by the support ring, and the support ring is limited by the limiting ring, which can effectively improve the stability of the support ring during rotation.

[0013] Preferably: the lifting mechanism includes a plurality of fixed plates fixedly connected to the side walls of the hydraulic rod and distributed in a circle with the hydraulic cylinder as the center, magnets are fixed to the bottom of the fixed plates, wherein the second fixed ring is made of metal material, and a fixing component fixed to the second fixed ring is provided on the top of the disinfection box; the hydraulic rod directly drives the first fixed ring to move upward on the one hand, and drives the fixed plate to move upward on the other hand. Since a magnet is fixed to the bottom of the fixed plate, the magnet can have an adsorption effect on the second fixed ring, so that the second fixed ring can move upward synchronously with the first fixed ring. When the second fixed ring moves to the top of the disinfection box, the magnet no longer drives the second fixed ring to move upward, and the magnet separates from the second fixed ring. At the same time, since the first fixed ring continues to move upward, it can have a stretching effect on the middle position of the flexible filter layer.

[0014] Preferably: the fixing assembly comprises a magnetic ring fixedly connected to the top of the disinfection box, the upper surface of the magnetic ring is flush with the top of the disinfection box, and the second fixed top is provided with a step groove adapted to the magnetic ring;

[0015] When the second fixing ring moves to the top of the disinfection box, the magnetic ring can limit the step groove on the top of the second fixing ring, thereby limiting the second fixing ring from continuing to move upward.

[0016] Preferably: a conical platform is fixed to the outside of the disinfection box, wherein the top of the conical platform is flush with the top of the disinfection box; the setting of the conical platform can further improve the dispersion effect of tobacco seeds, so that the tobacco seeds can be evenly dispersed in the culture medium, avoiding excessive concentration of seeds, which is conducive to the uniform growth of seedlings.

[0017] Preferably: two symmetrically distributed semicircular culture media are provided under the conical table, and the two semicircular culture media constitute a complete circular culture medium, wherein the top of the semicircular culture medium is located directly below the outer edge of the bottom of the conical table; the tobacco seeds will fall inside the two semicircular culture media after sliding down the inclined surface of the conical table, and the two semicircular culture media can be separated, thereby facilitating the staff to transfer the tobacco seedlings for the next test.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: after the tobacco seeds are disinfected, the device drives the flexible filter layer to move upward through the first fixing ring and the second fixing ring. When the second fixing ring moves to the top of the disinfection box, the second fixing ring stops moving, and the first fixing ring continues to move upward, thereby stretching the middle position of the flexible filter layer, so that the tobacco seeds slide downward along the flexible filter layer, and there is no need to manually take out the tobacco seeds inside the disinfection box, which saves time and improves the efficiency of tobacco planting and seedling raising experiments. At the same time, it can also disperse the tobacco seeds, so that the tobacco seeds can be evenly dispersed in the culture medium, avoiding excessive concentration of seeds, which is conducive to the uniform growth of seedlings.

[0019] In addition, when the hydraulic rod moves upward, it also drives the rotating seat to move upward. The rotating seat drives the push rod to move upward through the push plate. When the push rod moves upward, it drives the piston to move upward inside the air pressure cylinder. The piston squeezes the gas above it, so that the gas inside the air pressure cylinder enters the branch pipe through the air pipe and is finally discharged from the air outlet at the bottom of the branch pipe. At this time, the gas discharged from the air pipe can dry the tobacco seeds in the rising process, avoiding the contamination of the seedling medium or soil caused by the residual disinfectant, thereby improving the germination rate of the tobacco seeds.

[0020] In addition, when the hydraulic rod moves upward, it will also drive the support rod to move upward through the rotating seat. When the support rod moves upward, its upper end will slide inside the limit cylinder. The limit cylinder can limit the support rod, thereby effectively improving the stability of the support rod when it moves. When the support rod moves upward, the convex point on its outside will slide inside the thread groove inside the guide cylinder. Under the limitation of the thread groove, the convex point will rotate upward inside the thread groove, thereby driving the support rod to rotate and move upward, so that the support rod is in a spiral ascending state, and the support rod drives the branch tube to move in a circle through the rotating seat, push plate, push rod, air pressure cylinder and air pipe, thereby increasing the blowing range of the air outlet, effectively ensuring the drying effect of the tobacco seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the overall structure of the test device in the embodiment of the present invention.

[0022] Figure 2 Schematic diagram of the external structure of the disinfection box in an embodiment of the present invention.

[0023] Figure 3 Schematic diagram of the internal structure of the disinfection box in an embodiment of the present invention.

[0024] Figure 4 It is a front view of the flexible filter layer in the stretched state in the embodiment of the present invention.

[0025] Figure 5Schematic diagram of the air pressure cylinder connection structure in an embodiment of the present invention.

[0026] Figure 6 Schematic diagram of the internal structure of the air pressure cylinder in an embodiment of the present invention.

[0027] Figure 7 Schematic diagram of the internal structure of the limiting cylinder in an embodiment of the present invention.

[0028] In the figure: 1-disinfection box; 2-rotating mechanism; 21-limiting cylinder; 22-support rod; 23-threaded groove; 24-convex point; 3-blow-drying mechanism; 31-air pressure cylinder; 32-trachea; 33-push rod; 34-push plate; 35-branch pipe; 36-air hole; 37-support ring; 38-limiting ring; 39-piston; 4-lifting mechanism; 41-fixed plate; 42-magnet; 43-magnetic ring; 44-step groove; 5-hydraulic rod; 6-top plate; 7-first fixed ring; 8-second fixed ring; 9-flexible filter layer; 10-vertical pole; 11-rotating seat; 12-conical table; 13-semicircular ring culture medium; 14-hydraulic cylinder. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 intended to limit the present invention.

[0030] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0031] In one embodiment, see Figure 1-Figure 4 A tobacco planting and seedling test device comprises a disinfection box 1, a plurality of vertical poles 10 are fixed on the top of the disinfection box 1, a top plate 6 is fixed on the top of the vertical poles 10, a flexible filter layer 9 is arranged inside the disinfection box 1, a first fixing ring 7 is fixed inside the flexible filter layer 9, a second fixing ring 8 is fixed outside the flexible filter layer 9, an outer wall of the second fixing ring 8 is slidably connected to an inner wall of the disinfection box 1, a hydraulic cylinder 14 is fixedly installed on the outer bottom of the disinfection box 1, a hydraulic rod 5 is fixed on the telescopic end of the hydraulic cylinder 14, the hydraulic rod 5 passes through the bottom of the disinfection box 1 and is slidably connected to the bottom of the disinfection box 1, and the hydraulic rod 5 passes through the bottom of the disinfection box 1 The first fixed ring 7 is fixedly connected to the first fixed ring 7, wherein the second fixed ring 8 is connected to the lifting mechanism 4, when the hydraulic rod 5 drives the first fixed ring 7 to move upward, the lifting mechanism 4 simultaneously drives the second fixed ring 8 to move upward, the top of the hydraulic rod 5 is rotatably connected to the rotating seat 11, the rotating seat 11 is connected to the drying mechanism 3 and the rotating mechanism 2, when the hydraulic rod 5 drives the first fixed ring 7 to move upward, the drying mechanism 3 is used to dry the tobacco seeds after disinfection on the surface of the flexible filter layer 9, and at the same time the rotating mechanism 2 drives the drying mechanism 3 to make a circular motion through the rotating seat 11.

[0032] In this embodiment, when the device is conducting a tobacco planting and seedling raising test, the tobacco seeds are poured into the disinfection box 1, and the tobacco seeds are supported by the flexible filter layer 9 inside the disinfection box 1, and the tobacco seeds are disinfected by the disinfectant inside the disinfection box 1, thereby eliminating pathogens such as fungi, bacteria or viruses that may be carried on the surface or inside of the tobacco seeds, reducing the risk of disease transmission, and improving the germination rate of tobacco seeds. The disinfectant can be a low-concentration potassium permanganate (0.1%), formalin (1%) or sodium hypochlorite solution. Soaking the tobacco seeds in the above solution for 10-15 minutes can effectively ensure the disinfection effect of the tobacco seeds. After the tobacco seeds are disinfected, use The hydraulic cylinder 14 drives the hydraulic rod 5 to move upward. While the hydraulic rod 5 moves upward, it directly drives the first fixed ring 7 to move upward. On the other hand, it drives the second fixed ring 8 to move upward synchronously through the lifting mechanism 4. The flexible filter layer 9 is driven to move upward by the synchronous upward movement of the first fixed ring 7 and the second fixed ring 8, which effectively ensures the stability of the flexible filter layer 9. During the upward movement of the flexible filter layer 9, the tobacco seeds soaked in the disinfectant can be scooped up, so that the tobacco seeds leave the disinfectant. When the tobacco seeds leave the disinfectant, the drying mechanism 3 blows air to the tobacco seeds, avoiding the contamination of the seedling medium or soil caused by the residual disinfectant, thereby improving the tobacco The germination rate of seeds is improved. In addition, when the hydraulic rod 5 moves upward, the rotating mechanism 2 can also drive the rotating seat 11 to rotate. When the rotating seat 11 rotates, it drives the drying mechanism 3 to move in a circle, so that the gas discharged from the drying mechanism 3 can pass through the surface of the flexible filter, thereby improving the blowing range of the drying mechanism 3 and effectively ensuring the drying effect of the tobacco seeds. In addition, when the first fixing ring 7 and the second fixing ring 8 rise to the top of the disinfection box 1, the lifting mechanism 4 no longer drives the second fixing ring 8 to move upward, and the hydraulic rod 5 continues to drive the first fixing ring 7 to move upward. During the upward movement of the first fixing ring 7, the middle position of the flexible filter layer 9 can be stretched. , thereby causing the flexible filter layer 9 to deform. At this time, the middle position of the flexible filter layer 9 gradually rises, and the tobacco seeds above the flexible filter layer 9 slide downward along the flexible filter layer 9. The moving tobacco seeds are blown by the blowing mechanism 3, which can effectively improve the drying effect of the tobacco seeds. The tobacco seeds eventually fall from the top of the disinfection box 1 along the flexible filter layer 9. There is no need to manually take out the tobacco seeds inside the disinfection box 1, which saves time and improves the efficiency of tobacco planting and seedling experiments. In addition, the stretched flexible filter layer 9 can disperse the tobacco seeds, which can effectively avoid the accumulation of tobacco seeds, thereby improving the effect of tobacco planting and seedling experiments.

[0033] See also Figure 7The rotating mechanism 2 includes a support rod 22 fixedly connected to the top of the rotating seat 11, a limiting cylinder 21 is fixed to the bottom of the top plate 6, the upper end of the support rod 22 passes through the bottom of the limiting cylinder 21 and extends into the inside of the limiting cylinder 21, wherein the support rod 22 is slidably connected to the bottom of the limiting cylinder 21, and a limiting assembly is provided inside the limiting cylinder 21. When the support rod 22 moves up and down relative to the limiting cylinder 21, the limiting assembly is used to limit the support rod 22, thereby forcing the support rod 22 to rotate;

[0034] When the tobacco seeds are disinfected, the hydraulic cylinder 14 drives the hydraulic rod 5 to move upward, and the hydraulic cylinder 14 drives the support rod 22 to move upward through the rotating seat 11. When the support rod 22 moves upward, its upper end will slide inside the limiting cylinder 21, and the limiting cylinder 21 can play a limiting role on the support rod 22, thereby effectively improving the stability of the support rod 22 when it moves. A limiting assembly is provided inside the limiting cylinder 21, and the support rod 22 is limited by the limiting group, thereby forcing the support rod 22 to rotate. When the support rod 22 rotates, the drying mechanism 3 is driven to rotate through the rotating seat 11, thereby improving the blowing range of the drying mechanism 3, and effectively ensuring the drying effect of the tobacco seeds. The hydraulic rod 5 can be rotatably connected to the rotating seat 11 through a bearing, so that the rotating seat 11 can also rotate during the rising process, thereby ensuring the stability of the rotating seat 11 when it rotates.

[0035] See also Figure 7 The limiting assembly includes a thread groove 23 arranged on the inner wall of the limiting cylinder 21, wherein a convex point 24 adapted to the thread groove 23 is fixed to the outside of the support rod 22, and the convex point 24 is located inside the thread groove 23 and is slidably connected to the thread groove 23;

[0036] When the support rod 22 moves upward, the protrusion 24 on its outside will slide inside the thread groove 23 inside the guide tube. Under the limitation of the thread groove 23, the protrusion 24 will rotate upward inside the thread groove 23, thereby driving the support rod 22 to rotate upward, so that the support rod 22 is in a spiral ascending state, and the rotating seat 11 can drive the drying mechanism 3 to rotate while driving the drying mechanism 3 to move upward, thereby effectively improving the drying effect of the tobacco seeds.

[0037] See also Figure 5 and Figure 6The drying mechanism 3 includes a plurality of push plates 34 fixedly connected to the side wall of the rotating seat 11 and distributed in a circle about the hydraulic rod 5. A push rod 33 is provided on the top of each push plate 34. A pressure cylinder 31 is provided above the push rod 33. The push rod 33 passes through the bottom of the pressure cylinder 31 and extends into the interior of the pressure cylinder 31. The push rod 33 is slidably connected to the bottom of the pressure cylinder 31. A piston 39 is fixed to the upper end of the push rod 33. The piston 39 is slidably connected to the inner wall of the pressure cylinder 31. An air pipe 32 is connected above the piston 39 and on the side wall of the pressure cylinder 31. One end of the air pipe 32 is connected to the interior of the pressure cylinder 31, and the other end of the air pipe 32 is arranged toward the flexible filter layer 9. A support assembly is provided at the bottom of the top plate 6, and the support assembly is used to support the pressure cylinder 31.

[0038] When the rotating seat 11 moves upward, it also drives the push rod 33 to move upward through the push plate 34. When the push rod 33 moves upward, it drives the piston 39 to move upward inside the air cylinder 31. The piston 39 squeezes the gas above it, so that the gas inside the air cylinder 31 is discharged through the air pipe 32. At this time, the gas discharged from the air pipe 32 can have a drying effect on the tobacco seeds in the rising process, avoiding the contamination of the seedling medium or soil caused by the residual disinfectant, thereby improving the germination rate of the tobacco seeds. The support assembly can play a rotational support role for the air cylinder 31, so that the air cylinder 31 can follow the rotating seat 11 to make a circular motion.

[0039] See also Figure 5 The bottom of the air pipe 32 is connected to a horizontally arranged branch pipe 35, the end of the branch pipe 35 is closed, and a plurality of equally spaced air outlet holes 36 are arranged at the bottom of the branch pipe 35;

[0040] The gas inside the air cylinder 31 enters the air pipe 32 and then directly enters the branch pipe 35, and is finally discharged from the air outlet 36 at the bottom of the branch pipe 35. The number of the air outlet holes 36 is multiple and evenly distributed, which can effectively increase the blowing range and thus ensure the drying effect of the tobacco seeds.

[0041] See also Figure 5 The support assembly includes a support ring 37 fixedly connected to the top of the air cylinder 31, a limiting ring 38 adapted to the support ring 37 is fixed to the bottom of the top plate 6, and the outer wall of the support ring 37 is rotatably connected to the inner wall of the limiting ring 38;

[0042] The air cylinder 31 is supported by the support ring 37 and limited by the limit ring 38, which can effectively improve the stability of the support ring 37 during rotation and enable the air cylinder 31 to follow the rotating seat 11 to make circular motion. The limit ring 38 and the support ring 37 can be connected by a bearing, and the bearing can effectively improve the stability between the two.

[0043] See also Figure 4 and Figure 5 The lifting mechanism 4 includes a plurality of fixed plates 41 fixedly connected to the side wall of the hydraulic rod 5 and distributed in a circle with the hydraulic cylinder 14 as the center, and a magnet 42 is fixed to the bottom of each of the fixed plates 41, wherein the second fixed ring 8 is made of metal material, and a fixing component fixed to the second fixed ring 8 is provided on the top of the disinfection box 1;

[0044] When the seed disinfection is completed, the hydraulic cylinder 14 drives the hydraulic rod 5 to move upward. On the one hand, the hydraulic rod 5 directly drives the first fixing ring 7 to move upward, and on the other hand, drives the fixing plate 41 to move upward. Since a magnet 42 is fixed at the bottom of the fixing plate 41, the magnet 42 can have an adsorption effect on the second fixing ring 8, so that the second fixing ring 8 can move upward synchronously with the first fixing ring 7, thereby effectively improving the stability of the flexible filter layer 9 when moving upward. When the second fixing ring 8 moves to the top of the disinfection box 1, the fixing assembly fixes the second fixing ring 8. At this time, the magnet 42 no longer drives the second fixing ring 8 to move upward, and the magnet 42 is separated from the second fixing ring 8. At the same time, since the first fixing ring 7 continues to move upward, it can play a stretching role on the middle position of the flexible filter layer 9, so that the tobacco seeds slide downward along the flexible filter layer 9. There is no need to manually take out the tobacco seeds inside the disinfection box 1, which saves time and improves the efficiency of tobacco planting and seedling raising experiments. At the same time, it can also play a dispersing role on the tobacco seeds, so that the tobacco seeds can be evenly dispersed in the culture medium, avoiding excessive concentration of seeds, which is conducive to the uniform growth of seedlings.

[0045] See also Figure 5 The fixing assembly includes a magnetic ring 43 fixedly connected to the top of the disinfection box 1, the upper surface of the magnetic ring 43 is flush with the top of the disinfection box 1, and the second fixed top is provided with a step groove 44 adapted to the magnetic ring 43;

[0046] When the second fixing ring 8 moves to the top of the disinfection box 1, the magnetic ring 43 can limit the step groove 44 on the top of the second fixing ring 8, thereby limiting the second fixing ring 8 from continuing to move upward, wherein the magnetic ring 43 can also have an adsorption effect on the second fixing ring 8, thereby preventing the second fixing ring 8 from moving downward, effectively improving the stability of the second fixing ring 8, and in addition, the matching setting of the step groove 44 and the magnetic ring 43 can prevent tobacco seeds from getting stuck in the gap between the step groove 44 and the magnetic ring 43 during the sliding process.

[0047] See also Figure 1 A conical platform 12 is fixed to the outside of the disinfection box 1, wherein the top of the conical platform 12 is flush with the top of the disinfection box 1;

[0048] When the tobacco seeds slide down the stretched flexible filter layer 9 to the top of the disinfection box 1, the seeds will continue to move downward on the inclined surface of the conical table 12. The setting of the conical table 12 can further improve the dispersion effect of the tobacco seeds, so that the tobacco seeds can be evenly dispersed in the culture medium, avoiding excessive concentration of seeds, which is conducive to the uniform growth of seedlings.

[0049] See also Figure 1 Two semicircular ring-shaped culture media 13 are symmetrically arranged below the conical platform 12, and the two semicircular ring-shaped culture media 13 constitute a complete circular culture media, wherein the top of the semicircular ring-shaped culture media 13 is located directly below the outer edge of the bottom of the conical platform 12;

[0050] After sliding down the inclined surface of the conical platform 12, the tobacco seeds will fall into the two semicircular culture media 13. Then, the tobacco seeds can be used for seedling experiments in the two semicircular culture media 13, and the two semicircular culture media can be separated, so that it is convenient for the staff to transfer the tobacco seedlings for the next test.

[0051] Working principle: When the device is conducting a tobacco planting and seedling raising test, the tobacco seeds are poured into the disinfection box 1, and the tobacco seeds are supported by the flexible filter layer 9 inside the disinfection box 1, and the tobacco seeds are disinfected by the disinfectant inside the disinfection box 1, thereby eliminating pathogens such as fungi, bacteria or viruses that may be carried on the surface or inside of the tobacco seeds, reducing the risk of disease transmission, and improving the germination rate of tobacco seeds. After the tobacco seeds are disinfected, the hydraulic cylinder 14 is used to drive the hydraulic rod 5 to move upward. While the hydraulic rod 5 moves upward, it directly drives the first fixed ring 7 to move upward on the one hand, and drives the fixed plate 41 to move upward on the other hand. Since a magnet 42 is fixed to the bottom of the fixed plate 41, the magnet 42 can have an adsorption effect on the second fixed ring 8, so that the second fixed ring 8 can move upward synchronously with the first fixed ring 7, thereby effectively improving The flexible filter layer 9 has stable performance when it moves upward. When the second fixing ring 8 moves to the top of the disinfection box 1, the magnetic ring 43 can limit the step groove 44 on the top of the second fixing ring 8, thereby limiting the second fixing ring 8 from continuing to move upward. At this time, the magnet 42 no longer drives the second fixing ring 8 to move upward, and the magnet 42 is separated from the second fixing ring 8. At the same time, since the first fixing ring 7 continues to move upward, a stretching effect can be exerted on the middle position of the flexible filter layer 9, so that the tobacco seeds slide downward along the flexible filter layer 9, and there is no need to manually take out the tobacco seeds inside the disinfection box 1, which saves time and improves the efficiency of tobacco planting and seedling raising experiments. At the same time, it can also disperse the tobacco seeds, so that the tobacco seeds can be evenly dispersed in the culture medium, avoiding excessive concentration of seeds, which is conducive to the uniform growth of seedlings.

[0052] In addition, when the hydraulic rod 5 moves upward, it also drives the rotating seat 11 to move upward. The rotating seat 11 drives the push rod 33 to move upward through the push plate 34. When the push rod 33 moves upward, it drives the piston 39 to move upward inside the air cylinder 31. The piston 39 squeezes the gas above it, so that the gas inside the air cylinder 31 enters the inside of the branch pipe 35 through the air pipe 32, and finally is discharged from the air outlet 36 at the bottom of the branch pipe 35. At this time, the gas discharged from the air pipe 32 can dry the tobacco seeds in the rising process, avoiding the contamination of the seedling medium or soil caused by the residual disinfectant, thereby improving the germination rate of the tobacco seeds.

[0053] In addition, when the hydraulic rod 5 moves upward, it will also drive the support rod 22 to move upward through the rotating seat 11. When the support rod 22 moves upward, its upper end will slide inside the limiting cylinder 21. The limiting cylinder 21 can limit the support rod 22, thereby effectively improving the stability of the support rod 22 when it moves. When the support rod 22 moves upward, the convex point 24 on its outside will slide inside the thread groove 23 inside the guide cylinder. Under the limitation of the thread groove 23, the convex point 24 rotates upward inside the thread groove 23, thereby driving the support rod 22 rotates and moves upward, so that the support rod 22 is in a spiral upward state, and the support rod 22 drives the branch pipe 35 to move in a circle through the rotating seat 11, the push plate 34, the push rod 33, the air pressure cylinder 31 and the air pipe 32, thereby increasing the blowing range of the air outlet 36, effectively ensuring the drying effect of the tobacco seeds, wherein the air pressure cylinder 31 is supported by the support ring 37, and the support ring 37 is limited by the limit ring 38. The limit ring 38 is rotatably connected to the rotating ring so that the air pressure cylinder 31 can follow the rotating seat 11 to make a circular motion.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tobacco planting and seedling test device, comprising a disinfection box; characterized in that: A plurality of vertical poles are fixed on the top of the disinfection box, and a top plate is fixed on the top of the vertical poles. A flexible filter layer is provided inside the disinfection box, a first fixed ring is fixed inside the flexible filter layer, and a second fixed ring is fixed outside the flexible filter layer. The outer wall of the second fixed ring is slidably connected to the inner wall of the disinfection box. A hydraulic cylinder is fixedly installed on the outer bottom of the disinfection box, and a hydraulic rod is fixed on the telescopic end of the hydraulic cylinder. The hydraulic rod passes through the bottom of the disinfection box and is slidably connected to the bottom of the disinfection box. The hydraulic rod passes through the first fixed ring and is fixedly connected to the first fixed ring, wherein the second fixed ring is connected to a lifting mechanism. When the hydraulic rod drives the first fixed ring to move upward, the lifting mechanism simultaneously drives the second fixed ring to move upward. The top of the hydraulic rod is rotatably connected to a rotating seat, and the rotating seat is connected to a drying mechanism and a rotating mechanism. When the hydraulic rod drives the first fixed ring to move upward, the drying mechanism is used to dry the tobacco seeds after disinfection on the surface of the flexible filter layer, and at the same time, the rotating mechanism drives the drying mechanism to make a circular motion through the rotating seat.

2. A tobacco planting and seedling raising test device according to claim 1, characterized in that: The rotating mechanism includes a support rod fixedly connected to the top of the rotating seat, a limiting cylinder fixed to the bottom of the top plate, the upper end of the support rod passes through the bottom of the limiting cylinder and extends into the interior of the limiting cylinder, wherein the support rod is slidably connected to the bottom of the limiting cylinder, and a limiting assembly is provided inside the limiting cylinder. When the support rod moves up and down relative to the limiting cylinder, the limiting assembly is used to limit the support rod, thereby forcing the support rod to rotate.

3. A tobacco planting and seedling raising test device according to claim 2, characterized in that: The limiting assembly comprises a thread groove arranged on the inner wall of the limiting cylinder, wherein a convex point matched with the thread groove is fixed on the outside of the support rod, and the convex point is located inside the thread groove and is slidably connected with the thread groove.

4. A tobacco planting and seedling raising test device according to claim 1, characterized in that: The blowing-drying mechanism includes a plurality of push plates fixedly connected to the side walls of the rotating seat and distributed in a circle about the hydraulic rod, each of the push plates is provided with a push rod on the top, an air pressure cylinder is provided above the push rod, the push rod passes through the bottom of the air pressure cylinder and extends into the interior of the air pressure cylinder, the push rod is slidably connected to the bottom of the air pressure cylinder, a piston is fixed to the upper end of the push rod, the piston is slidably connected to the inner wall of the air pressure cylinder, an air pipe is connected above the piston and on the side wall of the air pressure cylinder, one end of the air pipe is connected to the interior of the air pressure cylinder, and the other end of the air pipe is arranged toward the flexible filter layer, and a support assembly is provided at the bottom of the top plate, and the support assembly is used to support the air pressure cylinder.

5. A tobacco planting and seedling raising test device according to claim 4, characterized in that: The bottom of the air pipe is connected with a horizontally arranged branch pipe, the end of the branch pipe is closed, and the bottom of the branch pipe is provided with a plurality of equally distributed air outlets.

6. A tobacco planting and seedling raising test device according to claim 4 or 5, characterized in that: The support assembly comprises a support ring fixedly connected to the top of the air cylinder, a limiting ring matched with the support ring is fixed to the bottom of the top plate, and the outer wall of the support ring is rotatably connected to the inner wall of the limiting ring.

7. A tobacco planting and seedling raising test device according to claim 1, characterized in that: The lifting mechanism includes a plurality of fixed plates fixedly connected to the side walls of the hydraulic rod and distributed in a circle with the hydraulic cylinder as the center, magnets are fixed to the bottom of the fixed plates, the second fixed ring is made of metal material, and a fixing component fixed to the second fixed ring is provided on the top of the disinfection box.

8. A tobacco planting and seedling raising test device according to claim 7, characterized in that: The fixing assembly comprises a magnetic ring fixedly connected to the top of the disinfection box, the upper surface of the magnetic ring is flush with the top of the disinfection box, and the second fixed top is provided with a step groove adapted to the magnetic ring.

9. A tobacco planting and seedling raising test device according to claim 1, characterized in that: A conical platform is fixed outside the disinfection box, wherein the top of the conical platform is flush with the top of the disinfection box.

10. A tobacco planting and seedling raising test device according to claim 9, characterized in that: Two symmetrically distributed semicircular culture media are arranged below the conical platform, and the two semicircular culture media form a complete circular culture media, wherein the top of the semicircular culture media is located just below the outer edge of the bottom of the conical platform.

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