A rice seedling propagation device that facilitates demolding

Abstract

This utility model discloses a rice seedling propagation device for easy demolding, including a base. Universal wheels are symmetrically fixedly connected to the bottom of the base in all directions. A push handle is fixedly connected to the right side of the base. Fixed columns are symmetrically fixedly connected to the top of the base in all directions. A fixed frame is fixedly connected to the top of the four fixed columns. A cultivation pot is fixedly connected to the inner wall of the fixed frame. A cross-shaped partition is fixedly connected to the inner wall of the cultivation pot. Four cultivation trays are slidably connected to the inner wall of the cultivation pot. A lifting mechanism is provided on the top of the base, and limit mechanisms are symmetrically provided on the left and right sides of the top of the base. The lifting mechanism design enables rapid separation of the rice seedling substrate from the cultivation trays. A servo motor drives a worm gear and worm wheel, which in turn drives a gear to rotate, causing a cylindrical rack to slide up and down within a fixed cylinder, pushing a lifting plate to eject the cultivation trays, thus completing demolding. This process is simple to operate, improves demolding efficiency, and reduces the labor intensity of manual operation.

Description

Technical Field

[0001] This utility model relates to the field of rice seedling propagation technology, specifically a rice seedling propagation device that facilitates demolding. Background Technology

[0002] In modern agricultural production, rice, as one of the world's most important food crops, relies heavily on its seedling stage for yield and quality. Efficient and scientific rice seedling propagation techniques are fundamental to ensuring a bumper rice harvest, while high-quality seedling raising equipment is the key to achieving efficient seedling cultivation.

[0003] However, traditional rice seedling propagation devices have revealed many shortcomings in practical applications that urgently need to be addressed. In the crucial step of seedling removal, manual operation is still the primary method in most cases, requiring workers to manually remove the seedling trays from the cultivation containers. This method is not only labor-intensive and physically demanding, but also extremely inefficient. More seriously, the difficulty in precisely controlling the force and angle during manual operation easily causes mechanical damage to the fragile seedlings, affecting their survival rate and negatively impacting key indicators such as stem thickness, leaf quantity and quality during later growth stages, ultimately affecting the overall yield and quality of the rice. Utility Model Content

[0004] The purpose of this invention is to provide a rice seedling propagation device that facilitates demolding, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rice seedling propagation device for easy demolding, comprising a base, universal wheels symmetrically and fixedly connected to the bottom of the base, a push handle fixedly connected to the right side of the base, fixed columns symmetrically and fixedly connected to the top of the base, a fixed frame fixedly connected to the top of the four fixed columns, a cultivation pot fixedly connected to the inner wall of the fixed frame, a cross partition fixedly connected to the inner wall of the cultivation pot, four cultivation trays slidably connected to the inner wall of the cultivation pot, a lifting mechanism provided at the top of the base, and limit mechanisms symmetrically provided on the left and right sides of the top of the base;

[0006] The lifting mechanism includes a fixed cylinder fixedly connected to the top of the base. A cylindrical rack is slidably connected to the inner wall of the fixed cylinder. Limiting strips are symmetrically fixedly connected to the front and back surfaces of the cylindrical rack. A lifting plate is fixedly connected to the top of the cylindrical rack. Sliding rods are symmetrically fixedly connected to the top of the lifting plate. A lifting plate is fixedly connected to the top of the sliding rods. A first fixed frame is fixedly connected to the top of the base. A rotating shaft is rotatably connected to the inner wall surface of the first fixed frame near the top. A gear is fixedly connected to the surface of the rotating shaft. An L-plate is fixedly connected to the right side of the first fixed frame near the front. A servo motor is fixedly connected to the right side of the L-plate. A worm gear is fixedly connected to the output end of the servo motor. A worm wheel is fixedly connected to the surface of the rotating shaft near the front end. A protective cover is fixedly connected to the top of the base. Heat dissipation holes are provided on the front and back sides of the protective cover. Guide rods are symmetrically fixedly connected to the top of the base.

[0007] Preferably, the inner wall of the fixed cylinder has a groove that matches the limiting strip, and the surface of the limiting strip is penetrated and slidably connected to the groove. The limiting strip limits the cylindrical rack, so that the cylindrical rack can only move up and down on the inner wall of the fixed cylinder.

[0008] Preferably, the first fixing frame has a hole matching the rotating shaft near the top on the front side, and the rotating shaft surface passes through and is rotatably connected to the hole. The inner wall of the fixing cylinder has an arc-shaped groove near the bottom to facilitate the meshing of the gear and the cylindrical rack.

[0009] Preferably, the top of the protective cover has a hole that matches the sliding rod, and the surface of the sliding rod passes through and slides up and down in the hole. The bottom of the cultivation basin has a groove that matches the lifting plate, and the surface of the lifting plate passes through and slides up and down in the groove. The top of the guide rod is fixedly connected to the top of the inner wall of the protective cover. The top of the lifting plate has a hole that matches the guide rod, and the lifting plate slides up and down in the guide rod through the hole, making the up and down movement of the lifting plate more stable.

[0010] Preferably, the limiting mechanism includes a second fixed frame, which is symmetrically fixedly connected to the top of the base. The top of the base is symmetrically rotatably connected to a screw, and a crank is fixedly connected to the top of the screw. A lifting block is threadedly connected to the surface of the screw. A limiting rod is symmetrically fixedly connected to the top of the inner wall of the second fixed frame. A lifting rod is symmetrically fixedly connected to the bottom of the lifting block, and a limiting plate is fixedly connected to the bottom of the lifting rod.

[0011] Preferably, the second fixing frame has a hole at the top, and the surface of the screw passes through and is rotatably connected to the hole. The bottom end of the limiting rod is fixedly connected to the top of the base. The top of the lifting block has a hole that matches the limiting rod, and the surface of the lifting block passes through and is slidably connected to the hole. The limiting rod limits the lifting block, so that the lifting block moves up and down as the screw rotates.

[0012] Preferably, the base has holes on the left and right sides of the top, which match the lifting rod, and the lifting rod is slidably connected to the holes through the surface of the lifting rod.

[0013] Compared with the prior art, this utility model provides a rice seedling propagation device that facilitates demolding, and has the following beneficial effects:

[0014] 1. This easy-to-demold rice seedling propagation device achieves rapid separation of the rice seedling substrate from the cultivation tray through a lifting mechanism design. A servo motor drives a worm gear and worm wheel, which in turn rotates a gear, causing a cylindrical rack to slide up and down within a fixed cylinder. This pushes the lifting plate to eject the cultivation tray, completing the demolding process. This process is simple to operate, improves demolding efficiency, and reduces the labor intensity of manual operation.

[0015] 2. This easy-to-demold rice seedling propagation device has a limiting mechanism that drives the screw to rotate by shaking the handle, causing the lifting block to move the limiting plate up and down. After the device moves to the designated position, it can be quickly and firmly fixed, preventing the device from affecting the seedling propagation work due to accidental movement during use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the cross-shaped partition and the cultivation tray of this utility model;

[0018] Figure 3 This is a three-dimensional sectional view of the front left side of the structural protective cover of this utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the fixed cylinder and lifting plate of this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the structural limiting strip of this utility model;

[0021] Figure 6 This is a three-dimensional schematic diagram of the structural limiting mechanism of this utility model;

[0022] The diagram shows the following components: 1. Base; 2. Casters; 3. Push handle; 4. Fixing column; 5. Fixing frame; 6. Cultivation tray; 61. Cross partition; 62. Cultivation plate; 7. Lifting mechanism; 71. Fixing cylinder; 72. Cylindrical rack; 73. Limiting bar; 74. Lifting plate; 75. Slide rod; 76. Lifting plate; 77. First fixing frame; 78. Rotating shaft; 79. Gear; 711. L-plate; 712. Servo motor; 713. Worm gear; 714. Worm wheel; 715. Protective cover; 716. Heat dissipation hole; 717. Guide rod; 8. Limiting mechanism; 81. Second fixing frame; 82. Screw; 83. Crank handle; 84. Lifting block; 85. Limiting rod; 86. Lifting rod; 87. Limiting plate. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings.

[0024] Example 1

[0025] Please see Figure 1-5 This utility model provides a technical solution: a rice seedling propagation device that is easy to demold, including a base 1, universal wheels 2 are symmetrically fixedly connected to the bottom of the base 1, a push handle 3 is fixedly connected to the right side of the base 1, fixed columns 4 are symmetrically fixedly connected to the top of the base 1, a fixed frame 5 is fixedly connected to the top of the four fixed columns 4, a cultivation pot 6 is fixedly connected to the inner wall of the fixed frame 5, a cross partition 61 is fixedly connected to the inner wall of the cultivation pot 6, four cultivation trays 62 are slidably connected to the inner wall of the cultivation pot 6, a lifting mechanism 7 is provided on the top of the base 1, and a limit mechanism 8 is symmetrically provided on the left and right sides of the top of the base 1;

[0026] The lifting mechanism 7 includes a fixed cylinder 71, which is fixedly connected to the top of the base 1. A cylindrical rack 72 is slidably connected to the inner wall of the fixed cylinder 71. Limiting strips 73 are symmetrically fixedly connected to the front and back surfaces of the cylindrical rack 72. A lifting plate 74 is fixedly connected to the top of the cylindrical rack 72. A sliding rod 75 is symmetrically fixedly connected to the top of the lifting plate 74. A lifting plate 76 is fixedly connected to the top of the sliding rod 75. A first fixed frame 77 is fixedly connected to the top of the base 1. The inner wall surface of the first fixed frame 77 rotates near the top. A rotating shaft 78 is connected, and a gear 79 is fixedly connected to the surface of the rotating shaft 78. An L-plate 711 is fixedly connected to the right side of the first fixed frame 77 near the front. A servo motor 712 is fixedly connected to the right side of the L-plate 711. A worm gear 713 is fixedly connected to the output end of the servo motor 712. A worm wheel 714 is fixedly connected to the surface of the rotating shaft 78 near the front end. A protective cover 715 is fixedly connected to the top of the base 1. Heat dissipation holes 716 are opened on the front and rear sides of the protective cover 715. Guide rods 717 are symmetrically fixedly connected to the top of the base 1.

[0027] The inner wall of the fixed cylinder 71 has a groove that matches the limiting strip 73, and the surface of the limiting strip 73 is penetrated and slidably connected to the groove. The limiting strip 73 limits the cylindrical rack 72, so that the cylindrical rack 72 can only move up and down on the inner wall of the fixed cylinder 71.

[0028] The first fixing bracket 77 has a hole on the front near the top that matches the rotating shaft 78, and the rotating shaft 78 passes through the surface and is rotatably connected to the hole. The inner wall of the fixing cylinder 71 has an arc-shaped groove near the bottom to facilitate the meshing of the gear 79 and the cylindrical rack 72.

[0029] The top of the protective cover 715 has a hole that matches the sliding rod 75, and the surface of the sliding rod 75 is slidably connected to the hole. The bottom of the cultivation basin 6 has a groove that matches the lifting plate 76, and the surface of the lifting plate 76 is slidably connected to the groove. The top of the guide rod 717 is fixedly connected to the top of the inner wall of the protective cover 715. The top of the lifting plate 74 has a hole that matches the guide rod 717, and the lifting plate 74 is slidably connected to the surface of the guide rod 717 through the hole, so that the lifting plate 74 moves up and down more stably.

[0030] Example 2

[0031] Please see Figure 6 Furthermore, based on Embodiment 1, a limiting mechanism 8 is obtained.

[0032] The limiting mechanism 8 includes a second fixed frame 81, which is symmetrically fixedly connected to the top of the base 1. The top of the base 1 is symmetrically rotatably connected to a screw 82. The top of the screw 82 is fixedly connected to a crank handle 83. The surface of the screw 82 is threadedly connected to a lifting block 84. The top of the inner wall of the second fixed frame 81 is symmetrically fixedly connected to a limiting rod 85. The bottom of the lifting block 84 is symmetrically fixedly connected to a lifting rod 86. The bottom of the lifting rod 86 is fixedly connected to a limiting plate 87.

[0033] The second fixed frame 81 has a hole at the top, and the screw 82 passes through and is rotatably connected to the hole. The bottom end of the limiting rod 85 is fixedly connected to the top of the base 1. The top of the lifting block 84 has a hole that matches the limiting rod 85, and the surface of the lifting block 84 passes through and slides up and down connected to the hole. The limiting rod 85 limits the lifting block 84, so that the lifting block 84 moves up and down as the screw 82 rotates.

[0034] The top left and right sides of the base 1 have holes that match the lifting rod 86, and the lifting rod 86 is connected to the hole by sliding up and down through the surface of the hole.

[0035] In actual operation, when this device is in use, during the device movement phase, the operator applies force by pushing the handle 3, and the universal wheels 2 at the bottom of the base 1 can rotate freely 360 degrees, thereby easily pushing the device to the target seedling area. After reaching the designated position, the limiting mechanism 8 is activated to fix it. By cranking the handle 83, the screw 82 rotates accordingly. Due to the limiting effect of the limiting rod 85 on the lifting block 84, the lifting block 84 can only move up and down along the limiting rod 85. As the screw 82 rotates, the lifting block 84 drives the lifting rod 86 and the limiting plate 87 to move downward until the limiting plate 87 is in close contact with the ground, increasing the friction between the device and the ground, achieving stable fixation, and preventing the device from shifting during subsequent use. In the rice seedling cultivation process, the cross partition 61 in the cultivation pot 6 divides the cultivation space into multiple areas. The four cultivation trays 62 can hold rice seedlings of different varieties or at different growth stages, which is convenient for classification management and cultivation. When demolding is required, the servo motor 712 starts, and the worm gear 713 at its output end drives the worm wheel 714 to rotate, thereby causing the rotating shaft 78 and gear 79 coaxial with the worm wheel 714 to rotate synchronously. Gear 79 meshes with cylindrical rack 72. Under the limiting effect of the limiting strip 73 and the groove on the inner wall of the fixed cylinder 71, the cylindrical rack 72 can only move up and down within the fixed cylinder 71. The rotation of gear 79 drives the cylindrical rack 72 to rise, and the cylindrical rack 72 drives the lifting plate 74, slide rod 75 and lifting plate 76 to rise synchronously. The lifting plate 76 passes through the groove at the bottom of the cultivation tray 6 and smoothly pushes out the cultivation tray 62, realizing convenient demolding and completing the subsequent processing of rice seedlings.

Claims

1. A rice seedling propagation device for easy demolding, comprising a base (1), characterized in that: The base (1) has casters (2) fixedly connected symmetrically to the bottom front, back and left and right. The base (1) has a push handle (3) fixedly connected to the right side. The base (1) has fixed posts (4) fixedly connected symmetrically to the top front, back and left and right. The four fixed posts (4) have fixed frames (5) fixedly connected to the top. The inner wall of the fixed frame (5) has a cultivation basin (6) fixedly connected. The inner wall of the cultivation basin (6) has a cross partition (61) fixedly connected. The inner wall of the cultivation basin (6) has four cultivation trays (62) slidably connected up and down. The base (1) has a lifting mechanism (7) at the top. The base (1) has a limit mechanism (8) symmetrically connected to the top left and right. The lifting mechanism (7) includes a fixed cylinder (71), which is fixedly connected to the top of the base (1). A cylindrical rack (72) is slidably connected to the inner wall of the fixed cylinder (71). Limiting strips (73) are symmetrically fixedly connected to the front and back surfaces of the cylindrical rack (72). A lifting plate (74) is fixedly connected to the top of the cylindrical rack (72). A sliding rod (75) is symmetrically fixedly connected to the top of the lifting plate (74). A lifting plate (76) is fixedly connected to the top of the sliding rod (75). A first fixing frame (77) is fixedly connected to the top of the base (1). The inner wall surface of the first fixing frame (77) is close to the top. A rotating shaft (78) is connected to the first fixed frame (77). A gear (79) is fixedly connected to the surface of the rotating shaft (78). An L-plate (711) is fixedly connected to the right side of the first fixed frame (77) near the front. A servo motor (712) is fixedly connected to the right side of the L-plate (711). A worm gear (713) is fixedly connected to the output end of the servo motor (712). A worm wheel (714) is fixedly connected to the surface of the rotating shaft (78) near the front end. A protective cover (715) is fixedly connected to the top of the base (1). Heat dissipation holes (716) are opened on the front and rear sides of the protective cover (715). Guide rods (717) are symmetrically fixedly connected to the top of the base (1).

2. The rice seedling propagation device for easy demolding according to claim 1, characterized in that: The inner wall of the fixed cylinder (71) is provided with a groove that matches the limiting strip (73), and the surface of the limiting strip (73) is penetrated and slidably connected to the groove.

3. The rice seedling propagation device for easy demolding according to claim 1, characterized in that: The first fixing bracket (77) has a hole on the front near the top that matches the rotating shaft (78), and the rotating shaft (78) is rotatably connected to the hole through the surface. The inner wall of the fixing cylinder (71) has an arc-shaped groove near the bottom.

4. The rice seedling propagation device for easy demolding according to claim 1, characterized in that: The top of the protective cover (715) is provided with a hole that matches the sliding rod (75), and the surface of the sliding rod (75) is slidably connected to the hole. The bottom of the cultivation basin (6) is provided with a groove that matches the lifting plate (76), and the surface of the lifting plate (76) is slidably connected to the groove. The top of the guide rod (717) is fixedly connected to the top of the inner wall of the protective cover (715). The top of the lifting plate (74) is provided with a hole that matches the guide rod (717), and the lifting plate (74) is slidably connected to the surface of the guide rod (717) through the hole.

5. The rice seedling propagation device for easy demolding according to claim 1, characterized in that: The limiting mechanism (8) includes a second fixed frame (81), which is symmetrically fixedly connected to the top of the base (1) from left to right. The top of the base (1) is symmetrically rotatably connected to a screw (82). The top of the screw (82) is fixedly connected to a crank (83). The surface of the screw (82) is threadedly connected to a lifting block (84). The top of the inner wall of the second fixed frame (81) is symmetrically fixedly connected to a limiting rod (85) from front to back. The bottom of the lifting block (84) is symmetrically fixedly connected to a lifting rod (86) from front to back. The bottom end of the lifting rod (86) is fixedly connected to a limiting plate (87).

6. The rice seedling propagation device for easy demolding according to claim 5, characterized in that: The second fixing frame (81) has a hole at the top, and the screw (82) passes through and is rotatably connected to the hole. The bottom end of the limiting rod (85) is fixedly connected to the top of the base (1). The top of the lifting block (84) has a hole that matches the limiting rod (85), and the surface of the lifting block (84) passes through and slides up and down connected to the hole.

7. The rice seedling propagation device for easy demolding according to claim 5, characterized in that: The base (1) has holes on the top left and right sides that match the lifting rod (86), and the lifting rod (86) is connected to the hole through the surface and slides up and down.

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