Forest tree seedling raising and sowing device

Abstract

A forest seedling raising and sowing device comprises a rack, the rack is fixedly connected with a center shaft, two sides of the rack and the center shaft are connected with two symmetrical rotating devices, an adjusting device is connected with the rotating devices on the two sides, the adjusting device and the rotating devices are connected with the rack through lead screws, the adjusting device comprises an adjusting seat, and the adjusting seat is slidably connected with a set of seed suction rods. Seed suction ports with different sizes are formed in the seed suction rod, the rotating device comprises a rotating seat, the rotating seat is connected with a group of sealing plates in a sliding manner, the adjusting device and the rotating device form a closed space, the center shaft is connected with a vacuum pump, and the seed suction ports suck seeds under the action of negative pressure. The adaptability is high.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, and in particular to a forest seedling raising and sowing device. Background Art

[0002] There are two problems in the process of raising seedlings and sowing in forestry and horticulture. First, due to the different sizes of seeds of different forestry and horticulture crops, the seeds of the same tree will also be sown in grades according to size. Therefore, if the seeder cannot be adjusted according to the size of the seeds, the use of the seeder will be limited. Different trees must require different seeders, resulting in a waste of resources. Second, when raising seedlings and sowing, the number of seeds sown in each hole must be adjusted according to needs. The existing seeder can only adapt to one sowing mode and cannot adjust the number of seeds at any time. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention provides a forest seedling sowing device which can be adjusted according to the size of forest seeds and the number of seeds sown in each hole and has strong adaptability.

[0004] The purpose of the present invention is to be achieved through the following technical solutions: A forest seedling sowing device comprises a frame, the frame is fixedly connected to a central axis, two symmetrical rotating devices are connected to the frame and the central axis on both sides, an adjusting device is connected to the rotating devices on both sides, the adjusting device and the rotating device are connected to the frame through a lead screw, the adjusting device comprises an adjusting seat, the adjusting seat is slidably connected to a group of seed suction rods, the seed suction rods are provided with seed suction ports of different sizes, the rotating device comprises a rotating seat, the rotating seat is slidably connected to a group of sealing plates, the adjusting device and the rotating device form a closed space, the central axis is connected to a vacuum pump, and the seed suction port absorbs seeds under the action of negative pressure.

[0005] The adjustment seat is a flange-shaped structure, and a plurality of adjustment seat holes are evenly distributed on the end surface of the adjustment seat, each group of adjustment seat holes is composed of two adjustment seat holes, each adjustment seat hole is rotatably connected with an adjustment nut, each adjustment nut is provided with a seed suction rod, and each adjustment nut is threadedly connected to the seed suction rod screw on one side of the seed suction rod.

[0006] The seed suction rod is evenly distributed with multiple groups of seed suction ports, each group of seed suction ports is composed of two holes with the same diameter, and the diameters of the seed suction ports between different groups decrease from right to left, and seed suction ports of different sizes suck seeds of different sizes. The rotating seat is an annular structure, a flange is provided on one side of the rotating seat, a group of No. 1 flange grooves are provided at the connection between the flange end face and the rotating seat, a No. 2 flange groove is provided between two adjacent No. 1 flange grooves, a group of flange pins are provided on the end face of the rotating seat, and each No. 2 flange groove corresponds to a flange pin, and the sealing plate guide plate on one side of each sealing plate is slidably connected to the corresponding No. 2 flange groove, and the sealing plate bearing seat on the outside of each sealing plate is slidably connected to the corresponding flange pin, and a spring is provided between each sealing plate and the rotating seat, and the spring is sleeved on the outside of the flange pin, and the two sides of the spring respectively press against the flange and the side of the sealing plate bearing seat.

[0007] Two symmetrical outer bearing seats are arranged on both sides of the frame, and the two sides of the central axis are fixed in the inner bearing seats. The central axis is a hollow structure with one end closed, a group of air intake ports are arranged in the middle of the central axis, an arc bracket is arranged on the outer side of the middle of the central axis, and an elastic arc plate is arranged on the outer side of the arc bracket.

[0008] Two symmetrical inner bearing seats are arranged on both sides of the frame. The inner bearing seats are on the inner side of the outer bearing seats. A rotating device is arranged in each outer bearing seat. The flange seat shaft in the middle of each rotating seat is rotatably connected to the corresponding inner bearing seat. The central axis passes through the flange seat shaft hole in the middle of the flange seat shaft. A sealing ring is arranged between the central axis and the flange seat shaft hole.

[0009] The front and rear sides of the frame are provided with two symmetrical rack slide grooves, wherein the two first moving seats are slidably connected in the rack slide groove on one side, and the second moving seat is slidably connected in the rack slide groove on the other side, and a No. 1 lead screw is connected between the two first moving seats, and threads with opposite rotation directions are provided on both sides of the No. 1 lead screw, and the threads on both sides of the No. 1 lead screw are connected to the moving seat screw holes on the upper part of the moving seat, and the moving seat grooves on the inner sides of the two moving seats clamp the flange seat retaining rings on the outer sides of the corresponding flange seat shafts.

[0010] Beneficial effect: When the vacuum pump connected to the central axis and the seed suction rod, the sealing plate and the rotating seats on both sides form an internal closed space and are in operation, air flows from the seed suction port into the seed suction rod, the sealing plate and the rotating seats on both sides, and then flows out from the air suction port. Negative pressure is generated in the internal closed space formed by the seed suction rod, the sealing plate and the rotating seats on both sides, and the seeds are sucked into the seed suction port opposite to the gap between the two rotating seats, so as to achieve the purpose of sucking seeds. The left and right positions of the seed suction rod can be adjusted by rotating the adjusting nut, so that one of the seed suction ports is aligned with the gap between the two rotating seats, and the other seed suction ports and the rotating seats are closed. Each group of seed suction ports consists of two holes with the same diameter, and the diameters of the seed suction ports between different groups decrease from right to left. A plurality of groups of holes are evenly distributed on the end surface of the adjustment seat, and each group of adjustment holes is evenly distributed on the end surface of the adjustment seat. The seat hole is composed of two adjustment seat holes, each adjustment seat hole is rotated to connect the adjustment nut, each adjustment nut is provided with a seed suction rod, each group of adjustment seat holes is provided with two seed suction rods, and the left and right positions of the two seed suction rods in the same group are adjusted so that one, two, three, or four same seed suction ports of the two seed suction rods in the same group and the gaps between the two rotating seats can be relative to each other, so that the device can meet the purpose of sucking one, two, three, or four seeds at the same time, and different groups of adjustment seat holes and the gaps between the two rotating seats can meet the suction of seeds of different sizes. When adjusting different groups of adjustment seat holes and the gaps between the two rotating seats relative to each other, the No. 1 screw is rotated at the same time to make the gap between the two rotating seats adapt to the size of the seeds, thereby ensuring that forest seeds of different sizes can be sucked. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the forest seedling raising and sowing device described in the present invention.

[0012] Figure 2 It is a schematic diagram of the connection structure between the rotating device and the central axis of the present invention.

[0013] Figure 3 This is a schematic diagram of the internal structure of the connection between the rotating device and the central shaft described in the present invention.

[0014] Figure 4 It is a schematic diagram of the connection structure between the elastic arc plate and the rotating seat of the present invention.

[0015] Figure 5 This is a schematic diagram of the rack structure of the present invention.

[0016] Figure 6 It is a schematic diagram of the seed leakage seat structure described in the present invention.

[0017] Figure 7 It is a schematic diagram of the seed box structure of the present invention.

[0018] Figure 8 It is a schematic diagram of the structure of the mobile seat described in the present invention.

[0019] Fig. 9 This is a schematic diagram of the central axis structure of the present invention.

[0020] Fig.10 It is a schematic diagram of the structure of the adjustment device described in the present invention.

[0021] Fig.11 It is a schematic diagram of the structure of the adjustment seat described in the present invention.

[0022] Fig.12 The present invention is a schematic diagram of the seed suction rod structure.

[0023] Fig.13 It is a schematic diagram of the structure of the rotating device described in the present invention.

[0024] Fig.14 This is a schematic diagram of the inner structure of the rotating device described in the present invention.

[0025] Fig.15 It is a schematic diagram of the structure of the rotating seat described in the present invention.

[0026] Fig.16 The figure is a schematic diagram of the sealing plate structure of the present invention. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below according to the accompanying drawings and embodiments: refer to Figures 1 to 4 A forest seedling sowing device includes a frame 110, the frame 110 is fixedly connected to a central axis 150, two symmetrical rotating devices 300 are connected on both sides of the frame 110 and the central axis 150, an adjusting device 200 is connected to the rotating devices 300 on both sides, the adjusting device 200 and the rotating device 300 are connected to the frame 110 through a screw, the adjusting device 200 includes an adjusting seat 210, the adjusting seat 210 is slidably connected to a group of seed suction rods 220, and the seed suction rods 220 are provided with seed suction ports 221 of different sizes, the rotating device 300 includes a rotating seat 310, the rotating seat 310 is slidably connected to a group of sealing plates 320, the adjusting device 200 and the rotating device 300 form a closed space, the central axis 150 is connected to a vacuum pump, and the seed suction port 221 sucks seeds under the action of negative pressure.

[0028] refer to Figure 10 to Figure 12 The adjustment seat 210 is a flange-shaped structure, and a plurality of groups of adjustment seat holes 211 are evenly distributed on the end surface of the adjustment seat 210. Each group of adjustment seat holes 211 is composed of two adjustment seat holes 211. An adjustment nut 230 is rotatably connected in each adjustment seat hole 211. A seed suction rod 220 is provided in each adjustment nut 230. Each adjustment nut 230 is threadedly connected to a seed suction rod screw 222 on one side of the seed suction rod 220.

[0029] refer to Figure 10 to Figure 12 The seed suction rod 220 is evenly distributed with multiple groups of seed suction ports 221, each group of seed suction ports 221 consists of two holes with the same diameter, and the diameters of the seed suction ports 221 between different groups decrease from right to left, and seed suction ports 221 of different sizes absorb seeds of different sizes.

[0030] refer to Figure 13 to Figure 16 The rotating seat 310 is an annular structure, and a flange 311 is provided on one side of the rotating seat 310. A group of No. 1 flange grooves 312 are provided at the connection between the end face of the flange 311 and the rotating seat 310. A No. 2 flange groove 313 is provided between two adjacent No. 1 flange grooves 312. A group of flange pins 315 are provided on the end face of the rotating seat 310, and each No. 2 flange groove 313 corresponds to a flange pin 315. The sealing plate guide plate 322 on one side of each sealing plate 320 is slidably connected to the corresponding No. 2 flange groove 313, and the sealing plate bearing seat 321 on the outer side of each sealing plate 320 is slidably connected to the corresponding flange pin 315. A spring 330 is provided between each sealing plate 320 and the rotating seat 310, and the spring 330 is sleeved on the outer side of the flange pin 315. The two sides of the spring 330 respectively press against the flange 311 and the side of the sealing plate bearing seat 321.

[0031] refer to Figures 1 to 9 Two symmetrical outer bearing seats 113 are provided on both sides of the frame 110, and the central shaft 150 is fixed in the inner bearing seats 111 on both sides. The central shaft 150 is a hollow structure with one end closed. A group of air intake ports 151 are provided in the middle of the central shaft 150, and an arc bracket 152 is provided on the outer side of the middle of the central shaft 150, and an elastic arc plate 153 is provided on the outer side of the arc bracket 152.

[0032] refer to Figures 1 to 9 Two symmetrical inner bearing seats 111 are provided on both sides of the frame 110. The inner bearing seats 111 are on the inner side of the outer bearing seats 113. A rotating device 300 is provided in each outer bearing seat 113. The flange seat shaft 316 in the middle of each rotating seat 310 is rotatably connected to the corresponding inner bearing seat 111. The central axis 150 passes through the flange seat shaft hole 318 in the middle of the flange seat shaft 316. A sealing ring is arranged between the central axis 150 and the flange seat shaft hole 318.

[0033] refer to Figures 1 to 9 The frame 110 is provided with two symmetrical frame slide grooves 114 on the front and rear sides, wherein the frame slide groove 114 on one side is slidably connected to two first movable seats 140, and the frame slide groove 114 on the other side is slidably connected to the second movable seat 140, and a No. 1 lead screw 160 is connected between the two first movable seats 140, and threads with opposite rotation directions are provided on both sides of the No. 1 lead screw 160, and the threads on both sides of the No. 1 lead screw 160 are connected to the movable seat screw hole 141 on the upper part of the movable seat 140, and the movable seat grooves 142 on the inner sides of the two movable seats 140 clamp the flange seat retaining ring 317 on the outer side of the corresponding flange seat shaft 316.

[0034] refer to Figures 1 to 9 The open side of the central shaft 150 is connected to a vacuum pump, and the flange seat shaft 316 of one of the rotating seats 310 is connected to a power device.

[0035] refer to Figures 1 to 9 The seed suction rod 220 of the adjustment device 200 passes through the No. 1 flange groove 312 of the two rotating seats 310 respectively, and the two seed suction rods 220 of the same group pass through the same No. 1 flange groove 312. The two adjustment seat guide rods 212 on the end face of the adjustment seat 210 are slidably connected to the flange hole 314 on the end face of the rotating seat 310 on the same side. The seed suction rod 220, the sealing plate 320 and the rotating seats 310 on both sides form an internal closed space, and the air intake port 151 of the central axis 150 is connected to the internal space.

[0036] refer to Figures 1 to 9 The elastic arc plate 153 on the outside of the central axis 150 is stuck between the two seed boxes 130 on both sides, and the outer side of the elastic arc plate 153 is slidably connected with the inner side of the sealing plate 320 and the seed suction rod 220. The arc length of the elastic arc plate 153 is greater than the sum of the arc lengths of the two seed suction rods 220. The elastic arc plate 153 allows the two rotating seats 310 to maintain contact when the gap between them changes. When the vacuum pump connected to the central axis 150 is working, air flows from the seed suction port 221 into the closed space of the seed suction rod 220, the sealing plate 320 and the rotating seats 310 on both sides, and then flows out from the air suction port 151. The internal closed space formed by the seed suction rod 220, the sealing plate 320 and the rotating seats 310 on both sides generates negative pressure, and the seeds are sucked into the seed suction port 221 opposite to the gap between the two rotating seats 310, so as to achieve the purpose of sucking seeds.

[0037] refer to Figures 1 to 9The second movable seat 140 is connected to the second lead screw 170, and the second lead screw 170 is threadedly connected to the movable seat screw hole 141 on the upper part of the movable seat 140, and the movable seat groove 142 of the second movable seat 140 is stuck on both sides of the adjustment seat 210. The left and right positions of the seed suction rod 220 can be adjusted by rotating the adjusting nut 230, so that one of the seed suction ports 221 is aligned with the gap between the two rotating seats 310, and the other seed suction ports 221 and the rotating seat 310 are closed. Each group of seed suction ports 221 consists of two holes with the same diameter, and the diameters of the seed suction ports 221 between different groups decrease from right to left. Multiple groups of holes are evenly distributed on the end surface of the adjustment seat 210, and each group of adjustment seat holes 211 consists of two adjustment seat holes 211. The adjusting nut 230 is rotatably connected in each adjustment seat hole 211. Each adjustment seat hole 211 is A seed suction rod 220 is provided in the section nut 230, and each group of adjustment seat holes 211 is provided with two seed suction rods 220. By adjusting the left and right positions of the two seed suction rods 220 in the same group, one, two, three or four identical seed suction ports 221 of the two seed suction rods 220 in the same group and the gaps between the two rotating seats 310 can be relative, so that the device can meet the purpose of sucking one, two, three or four seeds at the same time, and different groups of adjustment seat holes 211 and the gaps between the two rotating seats 310 can meet the suction of seeds of different sizes.

[0038] In normal state, there is a gap on the inner side of the two rotating seats 310. When the No. 1 screw 160 is rotated, the rotating devices 300 on both sides are driven to approach or separate at the same time, so that the gap between the two rotating seats 310 can be adjusted. Under the action of the spring 330, the two sealing plates 320 are in contact with each other without a gap. The gap between the two rotating seats 310 affects the suction pressure of the seeds. Adjusting the gap between the two rotating seats 310 can ensure that seeds of different sizes can be sucked.

[0039] refer to Figures 1 to 9 A seed leakage groove 115 is provided on one side of the frame 110, and a seed leakage seat 120 is fixedly connected in the seed leakage groove 115. The seed leakage seat 120 is a hollow structure. The seed leakage seat arc 121 on the upper part of the seed leakage seat 120 is adapted to the outer side of the sealing plate 320. The opening of the seed leakage seat 120 is opposite to the elastic arc plate 153. The other side of the frame 110 is fixedly connected to a seed box 130. The seed box 130 is a hollow structure. The seed box arc 131 on the upper part of the seed box 130 is adapted to the outer side of the sealing plate 320.

[0040] A method for operating a forest seedling sowing device. When using the device, a frame 110 is used in conjunction with an agricultural machine. The frame 110 is placed on the frame of the agricultural machine, and the agricultural machine is used to drive the sowing. A vacuum pump is connected to the open side of the central axis 150, and a flange seat shaft 316 of one of the rotating seats 310 is connected to the power equipment of the agricultural machine. A vacuum pump is connected to the open side of the central axis 150, and a flange seat shaft 316 of one of the rotating seats 310 is connected to the power equipment. Seeds are placed in a seed box 130. When the rotating seat 310 rotates, the two rotating devices 300 are driven to rotate simultaneously through the adjustment device 200. When the rotating seat 310 rotates to the side of the seed box 130, the seat hole 211 is adjusted to absorb the seeds. After the seat hole 211 absorbs the seeds, when the rotating seat 310 rotates to the side of the seed leakage seat 120, the seed suction port 221 loses negative pressure due to the elastic arc plate 153 blocking the seed suction port 221, and the seeds in the seed suction port 221 fall into the seed leakage seat 120, completing the seed suction and sowing action. The left and right positions of the seed suction rod 220 can be adjusted by rotating the adjusting nut 230, so that one of the seed suction ports 221 is aligned with the gap between the two rotating seats 310, and the other seed suction ports 221 are aligned with the gap between the two rotating seats 310. The rotary seat 310 is closed, each group of seed suction ports 221 is composed of two holes with the same diameter, and the diameters of the seed suction ports 221 between different groups decrease from right to left. The end surface of the adjustment seat 210 is evenly distributed with multiple groups of holes, and each group of adjustment seat holes 211 is composed of two adjustment seat holes 211. Each adjustment seat hole 211 is rotatably connected with an adjusting nut 230, and each adjusting nut 230 is provided with a seed suction rod 220. Each group of adjustment seat holes 211 is provided with two seed suction rods 220. By adjusting the left and right positions of the two seed suction rods 220 in the same group, the two seed suction rods in the same group can be adjusted. One, two, three or four identical seed suction ports 221 of 220 are relative to the gaps between the two rotating seats 310, so that the device can meet the purpose of sucking one, two, three or four seeds at the same time. Different groups of adjustment seat holes 211 and the gaps between the two rotating seats 310 can meet the suction of seeds of different sizes. When adjusting different groups of adjustment seat holes 211 and the gaps between the two rotating seats 310 relative to each other, rotate the No. 1 screw 160 at the same time to make the gap between the two rotating seats 310 adapt to the size of the seeds, ensuring that seeds of different sizes can be sucked.

[0041] The seed suction rod 220, the sealing plate 320 and the rotating seats 310 on both sides of the present invention form an internal closed space. When the vacuum pump connected to the central axis 150 is working, air flows from the seed suction port 221 into the closed space of the seed suction rod 220, the sealing plate 320 and the rotating seats 310 on both sides, and then flows out from the air suction port 151. The internal closed space formed by the seed suction rod 220, the sealing plate 320 and the rotating seats 310 on both sides generates negative pressure, and the forest and horticultural seeds are sucked into the seed suction port 221 opposite to the gap between the two rotating seats 310, so as to achieve the purpose of sucking seeds. The left and right positions of the seed suction rod 220 can be adjusted by rotating the adjusting nut 230, so that one of the seed suction ports 221 is aligned with the gap between the two rotating seats 310, and the other seed suction ports 221 and the rotating seat 310 are closed. Each group of seed suction ports 221 is composed of two holes with the same diameter. The diameters of the seed suction ports 221 between different groups decrease from right to left. The end surface of the adjusting seat 210 is evenly distributed with multiple groups of holes. Holes, each group of adjustment seat holes 211 holes consists of two adjustment seat holes 211, each adjustment seat hole 211 is rotatably connected to an adjustment nut 230, each adjustment nut 230 is provided with a seed suction rod 220, and each group of adjustment seat holes 211 is provided with two seed suction rods 220. By adjusting the left and right positions of the two seed suction rods 220 of the same group, one, two, three, or four same seed suction ports 221 of the two seed suction rods 220 of the same group can be made relative to the gaps between the two rotating seats 310, so that the device can meet the purpose of sucking one, two, three, or four seeds at the same time. The gaps between the adjustment seat holes 211 of different groups and the two rotating seats 310 can meet the suction of seeds of different sizes. When adjusting the gaps between the adjustment seat holes 211 of different groups and the two rotating seats 310 relative to each other, the No. 1 lead screw 160 is rotated at the same time to make the gap between the two rotating seats 310 adapt to the size of the seeds, thereby ensuring that forest and horticultural seeds of different sizes can be sucked.

Claims

1. A forest seedling sowing device, characterized in that : The invention comprises a frame (110), wherein the frame (110) is fixedly connected to a central axis (150), two symmetrical rotating devices (300) are connected to the frame (110) and the central axis (150) on both sides, an adjusting device (200) is connected to the rotating devices (300) on both sides, the adjusting device (200) and the rotating device (300) are connected to the frame (110) via a lead screw, the adjusting device (200) comprises an adjusting seat (210), the adjusting seat (210) is slidably connected to a group of seed suction rods (220), the seed suction rods (220) are provided with seed suction ports (221), the rotating device (300) comprises a rotating seat (310), the rotating seat (310) is slidably connected to a group of sealing plates (320), the adjusting device (200) and the rotating device (300) form a closed space, the central axis (150) is connected to a vacuum pump, and the seed suction ports (221) suck seeds under the action of negative pressure.

2. A forest tree seedling raising and sowing device according to claim 1, characterized in that The adjustment seat (210) is a flange-shaped structure. A plurality of groups of adjustment seat holes (211) are evenly distributed on the end surface of the adjustment seat (210). Each group of adjustment seat holes (211) is composed of two adjustment seat holes (211). An adjustment nut (230) is rotatably connected in each adjustment seat hole (211). A seed suction rod (220) is provided in each adjustment nut (230). Each adjustment nut (230) is threadedly connected to a seed suction rod screw (222) on one side of the seed suction rod (220). The seed suction rod (220) is evenly distributed with a plurality of groups of seed suction ports (221). Each group of seed suction ports (221) is composed of two holes with the same diameter. The diameters of the seed suction ports (221) in different groups decrease from right to left. Seed suction ports (221) of different sizes suck seeds of different sizes.

3. A forest tree seedling raising and sowing device according to claim 2, characterized in that The rotating seat (310) is an annular structure. A flange (311) is provided on one side of the rotating seat (310). A group of No. 1 flange grooves (312) are provided at the connection between the end surface of the flange (311) and the rotating seat (310). A No. 2 flange groove (313) is provided between two adjacent No. 1 flange grooves (312). A group of flange pins (315) are provided on the end surface of the rotating seat (310). Each No. 2 flange groove (313) corresponds to a flange pin (315). Each sealing plate (310) is provided with a flange pin (315). The sealing plate guide plate (322) on one side of the sealing plate (20) is slidably connected to the corresponding No. 2 flange groove (313), and the sealing plate bearing seat (321) on the outside of each sealing plate (320) is slidably connected to the corresponding flange pin (315). A spring (330) is provided between each sealing plate (320) and the rotating seat (310), and the spring (330) is sleeved on the outside of the flange pin (315), and the two sides of the spring (330) respectively press against the flange (311) and the side of the sealing plate bearing seat (321).

4. A forest tree seedling raising and sowing device according to claim 1, characterized in that The frame (110) is provided with two symmetrical outer bearing seats (113) on both sides, the central shaft (150) is fixed in the inner bearing seats (111) on both sides, the central shaft (150) is a hollow structure with one end closed, a group of air intake ports (151) are provided in the middle of the central shaft (150), an arc-shaped bracket (152) is provided on the outer side of the middle of the central shaft (150), and an elastic arc plate (153) is provided on the outer side of the arc-shaped bracket (152); the frame (110) is provided with two symmetrical outer bearing seats (113) on both sides, the central shaft (150) is fixed in the inner bearing seats (111) on both sides, the central shaft (150) is a hollow structure with one end closed, a group of air intake ports (151) are provided in the middle of the central shaft (150), an arc-shaped bracket (152) is provided on the outer side of the arc-shaped bracket (152), and an elastic arc plate (153) is provided on the outer side of the arc-shaped bracket (152); An inner bearing seat (111) is provided, the inner bearing seat (111) is located inside the outer bearing seat (113), each outer bearing seat (113) is provided with a rotating device (300), a flange seat shaft (316) in the middle of each rotating seat (310) is rotatably connected to the corresponding inner bearing seat (111), a central shaft (150) passes through a flange seat shaft hole (318) in the middle of the flange seat shaft (316), and a sealing ring is provided between the central shaft (150) and the flange seat shaft hole (318).

5. A forest tree seedling raising and sowing device according to claim 2, characterized in that The frame (110) is provided with two symmetrical frame slide grooves (114) on the front and rear sides, wherein the frame slide groove (114) on one side is slidably connected to two first movable seats (140), and the frame slide groove (114) on the other side is slidably connected to the second movable seat (140), and a lead screw (160) is connected between the two first movable seats (140), and threads with opposite rotation directions are provided on both sides of the lead screw (160), and the threads on both sides of the lead screw (160) are connected to the movable seat screw hole (141) on the upper part of the movable seat (140), and the movable seat grooves (142) on the inner sides of the two movable seats (140) clamp the flange seat retaining ring (317) on the outer side of the corresponding flange seat shaft (316); the opening side of the central shaft (150) is connected to the vacuum pump, and the flange seat shaft (316) of the rotating seat (310) is connected to the power equipment.

6. A forest tree seedling raising and sowing device according to claim 1, characterized in that The seed suction rod (220) of the adjustment device (200) passes through the No. 1 flange grooves (312) of the two rotating seats (310) respectively. The two seed suction rods (220) of the same group pass through the same No. 1 flange groove (312). The two adjustment seat guide rods (212) on the end surface of the adjustment seat (210) are slidably connected to the flange holes (314) on the end surface of the rotating seat (310) on the same side. The seed suction rod (220), the sealing plate (320) and the rotating seats (310) on both sides form an internal closed space, and the air suction port (151) of the central axis (150) is connected to the internal space.

7. A forest tree seedling raising and sowing device according to claim 4, characterized in that The elastic arc plate (153) on the outside of the central axis (150) is clamped between the two seed boxes (130) on both sides, the outer side of the elastic arc plate (153) is slidably connected to the inner side of the sealing plate (320) and the seed suction rod (220), the second movable seat (140) is connected to the second lead screw (170), the second lead screw (170) is threadedly connected to the movable seat screw hole (141) on the upper part of the movable seat (140), and the movable seat groove (142) of the second movable seat (140) is clamped on both sides of the adjustment seat (210).

8. A forest tree seedling raising and sowing device according to claim 1, characterized in that A seed leakage groove (115) is provided on one side of the frame (110), and a seed leakage seat (120) is fixedly connected in the seed leakage groove (115), the seed leakage seat (120) is a hollow structure, and a seed leakage seat arc (121) at the upper part of the seed leakage seat (120) is adapted to the outer side of the sealing plate (320), and an opening of the seed leakage seat (120) is opposite to the elastic arc plate (153), and a seed box (130) is fixedly connected to the other side of the frame (110), and the seed box (130) is a hollow structure, and a seed box arc (131) at the upper part of the seed box (130) is adapted to the outer side of the sealing plate (320).

Images