Alfalfa cuttage sand culture device

Abstract

The utility model relates to the technical field of alfalfa planting, in particular to an alfalfa cuttage sand culture device which comprises a sand bed body, a cuttage mechanism and a lifting mechanism. The sand bed body is provided with vent holes and a filter screen to guarantee ventilation of the bottom and prevent sand from leaking out; a cutting support of the cutting mechanism is in sliding connection with a sliding rail on the inner wall of the sand bed through a sliding block, the position and distance of a cutting assembly on the cutting support can be adjusted through an adjusting mechanism, and the adjusting mechanism controls the cutting operation process through a limiting bolt, a rotating cylinder and other components; a lifting frame of the lifting mechanism can horizontally slide on the sand bed body, and a lifting screw in threaded connection drives the cuttage support to ascend and descend, so that cuttage depth adjustment is achieved. The device improves the air permeability of the sand bed by accurately adjusting the cuttage position, spacing and depth of the alfalfa seedlings, provides a good growth environment for the alfalfa seedlings, effectively improves the survival rate and yield of the alfalfa seedlings, and is suitable for efficient cultivation of the alfalfa.

Description

Technical Field

[0001] This application relates to the field of alfalfa cultivation technology, and in particular to an alfalfa cutting sand culture device. Background Technology

[0002] Alfalfa, as an important forage and green manure crop, has received widespread attention for its cultivation and propagation. Cutting propagation is a common and effective method in alfalfa reproduction. Traditional alfalfa cutting propagation in sand typically uses simple sand beds. This method presents several problems: First, the placement and spacing of alfalfa seedlings are difficult to control precisely during the cutting process, leading to uneven growth space, affecting their development, and consequently reducing survival rate and yield. Second, the poor aeration at the bottom of the sand bed hinders air circulation, easily causing root hypoxia in alfalfa seedlings, which is detrimental to root growth and can even lead to seedling death in severe cases. Furthermore, existing cutting devices struggle to precisely adjust the cutting depth; improper depth affects root development and nutrient absorption, failing to meet optimal conditions for alfalfa propagation and resulting in poor cultivation outcomes, hindering efficient alfalfa cultivation.

[0003] To address the problems mentioned above, an alfalfa cutting sand culture device was invented. Utility Model Content

[0004] The purpose of this invention is to provide an alfalfa cutting sand culture device. By setting an adjustable cutting mechanism, the device can precisely control the cutting position and spacing of alfalfa seedlings, providing uniform growth space for the seedlings. By utilizing the air vents and filter structure at the bottom of the sand bed, the device improves the air permeability of the sand bed, ensuring oxygen supply to the roots of alfalfa seedlings. The device uses a lifting mechanism to precisely adjust the cutting depth to meet the optimal conditions for alfalfa cutting cultivation, thereby improving the survival rate and yield of alfalfa seedlings and achieving efficient alfalfa cultivation.

[0005] This application provides an alfalfa cutting sand culture device, which adopts the following technical solution: it includes a sand bed body, a cutting mechanism, and a lifting mechanism; the sand bed body is a rectangular box structure, and horizontal slide rails that can slide up and down are respectively provided on the inner walls of both sides of the sand bed body; the cutting mechanism includes a cutting support, and sliders are respectively provided on both sides of the cutting support. The sliders are slidably connected to the horizontal slide rails on their corresponding sides. The cutting support is provided with a plurality of cutting components that can perform cutting operations. The cutting support is provided with an adjustment mechanism that can adjust the position of the cutting components; the lifting mechanism is used to adjust the cutting mechanism by lifting. The lifting mechanism includes a lifting frame, which can slide horizontally on the sand bed body. A lifting screw is threadedly connected to the middle of the lifting frame, and the bottom of the lifting screw is rotatably connected to the cutting support.

[0006] Optionally, the bottom of the sand bed body is provided with a plurality of evenly distributed ventilation holes, and a filter screen is provided at the bottom of the sand bed body to prevent sand from falling out of the sand bed body.

[0007] Optionally, each of the cutting components includes two arc-shaped and symmetrically arranged cutting plates, with a placement cavity in the middle of the two cutting plates for placing alfalfa seedlings.

[0008] Optionally, the adjustment mechanism includes several adjustment holes formed on the cutting support, a slidable sliding seat on the cutting support, a limiting bolt that can be screwed into the adjustment hole on the sliding seat, a rotatable rotating cylinder on the sliding seat, external threads with opposite directions on both sides of the rotating cylinder, slidable connecting blocks on both sides of the sliding seat, two connecting blocks located on both sides of the sliding seat and threadedly connected to the rotating cylinder, and two connecting blocks fixedly connected to the cutting plate on their corresponding sides.

[0009] Optionally, the cutting support is provided with a rotatable rotating rod, the rotating cylinder is slidably connected to the rotating rod, and the cutting support is provided with a drive assembly that can drive the rotating rod to rotate.

[0010] Optionally, the drive assembly includes a transmission housing, which is fixed to one end of the insert bracket. A rotatable driven bevel gear is disposed inside the transmission housing, and a driving bevel gear that can mesh with the driven bevel gear is rotatably connected inside the transmission housing. A rotating handwheel is disposed on the top of the driving bevel gear.

[0011] Optionally, a guide rod is provided inside the sand bed body, and the horizontal slide rail is slidably connected to the guide rod.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. Precise adjustment of cutting position and spacing: The adjustment mechanism in the cutting mechanism can flexibly adjust the position of the cutting components. Through the cooperation of the limit bolt and the adjustment hole, as well as the movement of the connecting block and the cutting plate driven by the rotating cylinder, the cutting position and spacing of alfalfa seedlings can be precisely adjusted according to actual needs, ensuring uniform growth space for seedlings, which is conducive to the healthy growth of alfalfa seedlings and improves the survival rate.

[0014] 2. Improved sand bed permeability: Multiple evenly distributed air vents and filters at the bottom of the sand bed significantly improve its permeability while ensuring that the sand does not fall out. This allows air to circulate freely within the sand bed, providing sufficient oxygen to the roots of alfalfa seedlings, promoting root growth, and preventing seedling death due to lack of oxygen.

[0015] 3. Precise adjustment of cutting depth: The lifting mechanism can precisely adjust the cutting depth. By rotating the lifting screw, the cutting support can be moved up and down. The cutting depth of alfalfa seedlings can be precisely controlled according to the needs of alfalfa cutting cultivation, creating the best conditions for alfalfa root development and nutrient absorption, meeting the needs of alfalfa growth, and thus improving alfalfa yield and quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device. Figure I ;

[0017] Figure 2 This is a schematic diagram of the overall structure of the device. Figure II ;

[0018] Figure 3 This is a top view of the device;

[0019] Figure 4 This is a schematic diagram of the internal structure of the sand bed body of this device. Figure I ;

[0020] Figure 5 This is a schematic diagram of the internal structure of the sand bed body of this device. Figure II ;

[0021] Figure 6 For this device Figure 5 Enlarged view of A in the middle;

[0022] Figure 7 For this device Figure 4 Enlarged view of B in the middle;

[0023] The components include: 1. Sand bed body; 2. Cutting mechanism; 3. Lifting mechanism; 4. Horizontal slide rail; 5. Cutting bracket; 6. Slider; 7. Cutting assembly; 8. Adjustment mechanism; 9. Lifting frame; 10. Lifting screw; 11. Ventilation hole; 12. Filter screen; 13. Cutting plate; 14. Placement cavity; 15. Adjustment hole; 16. Sliding seat; 17. Limiting bolt; 18. Rotating cylinder; 19. Connecting block; 20. Rotating rod; 21. Drive assembly; 22. Transmission housing; 23. Driven bevel gear; 24. Driven bevel gear; 25. Rotating handwheel; 26. Guide rod. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.

[0025] Reference Figure 1 , Figure 5 , Figure 6 , Figure 7 One embodiment shown is an alfalfa cutting sand culture device comprising a sand bed body 1, a cutting mechanism 2, and a lifting mechanism 3. In this embodiment, the sand bed body 1 serves as the basic support structure of the entire device, adopting a rectangular box structure design. Horizontal slide rails 4 are installed on the inner walls of both sides of the sand bed body 1. The horizontal slide rails 4 are slidably connected to the sand bed body 1 via guide rods 26, allowing them to slide up and down within the sand bed body 1. The sliders 6 on both sides of the cutting support 5 of the cutting mechanism 2 form a sliding pair connection with the horizontal slide rails 4. This connection allows the cutting support 5 to slide smoothly along the horizontal slide rails 4, enabling the cutting mechanism 2 to move laterally within the sand bed body 1. Multiple cutting components 7 are installed on the cutting support 5 for placing and fixing alfalfa seedlings. An adjustment mechanism 8 is installed on the cutting support 5, achieving precise adjustment of the position of the cutting components 7 through the cooperation of the limiting bolts 17 and the adjusting holes 15, and the rotational movement of the rotating cylinder 18. The lifting frame 9 of the lifting mechanism 3 is slidably connected to the top guide rail of the sand bed body 1 via rollers, allowing it to slide horizontally on the sand bed body 1. The threaded hole in the middle of the lifting frame 9 forms a threaded connection with the lifting screw 10. The bottom of the lifting screw 10 is rotatably connected to the cutting support 5 via a bearing. When the lifting screw 10 is rotated, the rotational motion of the lifting screw 10 is converted into the lifting motion of the cutting support 5, thereby achieving precise adjustment of the cutting depth.

[0026] Implementation Principle: The sand bed body 1 provides structural support for the entire device. The sliding connection between the horizontal slide rail 4 and the guide rod 26 allows the horizontal slide rail 4 to be adjusted in height as needed. The cutting support 5 is slidably connected to the horizontal slide rail 4 via the slider 6, allowing for flexible adjustment of the lateral position of the cutting mechanism 2. The adjustment mechanism 8 achieves coarse adjustment through the cooperation of the limiting bolt 17 and the adjustment hole 15, and fine adjustment through the rotation of the rotating cylinder 18 driving the connecting block 19 to move, thereby precisely controlling the position and spacing of the cutting components 7. The horizontal sliding of the lifting frame 9 of the lifting mechanism 3 on the sand bed body 1 can adjust the cutting position. The threaded connection between the lifting screw 10 and the lifting frame 9, as well as the rotational connection with the cutting support 5, allows for precise control of the lifting height of the cutting support 5 when the lifting screw 10 is rotated, thus achieving precise adjustment of the alfalfa seedling cutting depth.

[0027] Reference Figure 2 , Figure 3 One embodiment shown is as follows: Multiple evenly distributed ventilation holes 11 are provided at the bottom of the sand bed body 1. A filter screen 12, made of stainless steel, is fixedly installed at the bottom of the sand bed body 1 by bolts. In this embodiment, the ventilation holes 11 are evenly distributed at the bottom of the sand bed body 1, forming air circulation channels. The filter screen 12 covers the ventilation holes 11 and is tightly connected to the bottom of the sand bed body 1 by bolts, effectively preventing sand from falling out through the ventilation holes 11.

[0028] Implementation principle: The even distribution of the ventilation holes 11 allows air to enter the sand bed from the bottom of the sand bed body 1, providing sufficient oxygen to the roots of the alfalfa seedlings and promoting root respiration and growth. The filter screen 12 ensures air circulation while preventing sand from leaking out through the ventilation holes 11, maintaining the stability of the sand bed structure and the integrity of the sand. The bolted fixing method makes the filter screen 12 easy to disassemble and replace, facilitating device maintenance and cleaning.

[0029] Reference Figure 7 One embodiment shown is as follows: Each cutting assembly 7 includes two arc-shaped and symmetrically arranged cutting plates 13, which are made of elastic plastic material. A placement cavity 14 is formed in the middle of the two cutting plates 13. In this embodiment, the outer sides of the two cutting plates 13 are threadedly connected to the rotating cylinder 18 of the adjusting mechanism 8 via connecting blocks 19. When the rotating cylinder 18 rotates, the two cutting plates 13 can move relative to or away from each other, thereby adjusting the size of the placement cavity 14 to accommodate alfalfa seedlings of different sizes.

[0030] Implementation Principle: The arc-shaped design of the cutting plate 13 better conforms to the stem of the alfalfa seedling, providing stable support and protection. The elastic plastic material gives the cutting plate 13 a certain degree of flexibility, allowing it to deform appropriately when placing and removing alfalfa seedlings, reducing damage to the seedlings. The relative position of the two cutting plates 13 is controlled by the adjustment mechanism 8, allowing them to be opened or closed. When closed, the insertion process can be carried out; when open, the seedling can be placed in sandy soil, ensuring the alfalfa seedling cutting process.

[0031] Reference Figure 6 , Figure 7 One embodiment is shown as follows: The adjustment mechanism 8 includes several adjustment holes 15 formed on the cutting support 5, arranged linearly. A sliding seat 16 is slidably connected to the cutting support 5 via a guide rail, which is located on the top of the cutting support 5. A groove matching the guide rail is formed on the bottom of the sliding seat 16. A limiting bolt 17 on the sliding seat 16 can be screwed into the adjustment holes 15 to fix the sliding seat 16 to the cutting support 5. A rotating cylinder 18 is rotatably connected to the sliding seat 16 via a bearing. External threads with opposite directions are formed on both sides of the rotating cylinder 18, and a threaded hole matching the external threads is formed in the middle of the connecting block 19. Two connecting blocks 19 are threadedly connected to both sides of the rotating cylinder 18 via threaded holes and slidably connected to the guide rails on both sides of the sliding seat 16 via a slider 6. The outer side of the connecting block 19 is fixedly connected to the cutting plate 13 by bolts.

[0032] Implementation principle: The sliding seat 16 is slidably connected to the cutting support 5 via a guide rail, allowing it to move freely on the cutting support 5. Positioning of the sliding seat 16 is achieved through the engagement of the limiting bolt 17 and the adjusting hole 15. The rotational motion of the rotating cylinder 18 is converted into relative or opposing linear motion of the two connecting blocks 19 via oppositely oriented external threads on both sides, thereby driving the cutting plate 13 to move, opening or closing the cutting assembly 7, and realizing the cutting operation. The sliding connection between the slider 6 and the guide rail ensures smooth and stable linear motion of the connecting blocks 19, improving adjustment accuracy.

[0033] Reference Figure 4 , Figure 6 One embodiment shown is as follows: Bearing seats are respectively provided on both sides of the cutting support 5, and the two ends of the rotating rod 20 are rotatably connected to the bearing seats via bearings. A rotating cylinder 18 is slidably connected to the rotating rod 20. A drive assembly 21 is located at one end of the cutting support 5, including a transmission housing 22, a driven bevel gear 23, a driving bevel gear 24, and a rotating handwheel 25. The transmission housing 22 is fixed to the end of the cutting support 5 by bolts, the driven bevel gear 23 is fixed to one end of the rotating rod 20 by a key, and the driving bevel gear 24 is rotatably connected to the transmission housing 22 via bearings and meshes with the driven bevel gear 23. The rotating handwheel 25 is fixed to the top of the driving bevel gear 24.

[0034] Implementation Principle: The rotating rod 20 is rotatably connected to the bearing housing via a bearing, allowing it to rotate freely on the cutting support 5. The rotating cylinder 18 slides on the rotating rod 20 via a key and keyway, enabling the rotational motion of the rotating rod 20 to be transmitted to the rotating cylinder 18, while simultaneously allowing the rotating cylinder 18 to move axially on the rotating rod 20 to accommodate the position adjustment of the adjusting mechanism 8. The rotating handwheel 25 of the drive assembly 21 drives the driving bevel gear 24 to rotate. The meshing of the driving bevel gear 24 and the driven bevel gear 23 transmits the rotational motion to the rotating rod 20, thereby driving the rotating cylinder 18 to rotate and achieving synchronous adjustment of the position of the cutting assembly 7. This bevel gear transmission method has advantages such as high transmission efficiency, smooth transmission, and compact structure, and can precisely control the rotation angle of the rotating rod 20, thereby improving the accuracy of the position adjustment of the cutting assembly 7.

[0035] Reference Figure 4 , Figure 6 One embodiment shown is as follows: The transmission housing 22 of the drive assembly 21 is a rectangular box, fixed to the end of the insert bracket 5 by four bolts. The driven bevel gear 23 is fixed to one end of the rotating rod 20 by a flat key, ensuring that their axes coincide and rotate synchronously. The driving bevel gear 24 is mounted in the through hole at the top of the transmission housing 22 by a bearing, and its axis intersects perpendicularly with the axis of the driven bevel gear 23, with the bevel teeth meshing with each other. The rotating handwheel 25 is fixed to the top of the driving bevel gear 24 by bolts, and the circumferential surface of the handwheel is provided with anti-slip texture.

[0036] Implementation Principle: The transmission housing 22 provides protection and support for the driven bevel gear 23 and the driving bevel gear 24, preventing external debris from affecting the gear transmission. The driven bevel gear 23 is fixedly connected to the rotating rod 20 to ensure synchronous rotation. The perpendicular meshing of the driving bevel gear 24 with the driven bevel gear 23 converts the rotational motion of the handwheel 25 into the rotational motion of the rotating rod 20. The anti-slip texture of the handwheel 25 increases hand friction, making it easier for the operator to apply force. This bevel gear transmission structure is compact and efficient, enabling large transmission ratios and vertical axis motion transmission, precisely driving the rotating rod 20 to rotate, thereby controlling the rotating cylinder 18 and controlling the working process of the insert assembly 7.

[0037] Reference Figure 1 , Figure 4 One embodiment shown is as follows: guide rods 26 are vertically fixed to the inner walls of both sides of the sand bed body 1. Horizontal slide rails 4 have sliding holes at both ends that are adapted to the guide rods 26. Linear bearings are embedded in the inner walls of the holes, and the horizontal slide rails 4 are slidably connected to the guide rods 26 through the linear bearings. The bottom of the guide rods 26 is fixed to the bottom inner wall of the sand bed body 1, and the top is connected to the top inner wall by bolts to ensure stability.

[0038] Implementation principle: The guide rod 26 provides precise guidance for the lifting and lowering of the horizontal slide rail 4. The linear bearing reduces the frictional resistance between the slide rail and the guide rod 26, allowing the horizontal slide rail 4 to slide smoothly up and down along the guide rod 26. The vertical fixation of the guide rod 26 ensures that the sliding direction of the horizontal slide rail 4 is consistent with the height direction of the sand bed body 1, thereby ensuring the precise lifting and lowering movement of the cutting mechanism 2. Together with the lifting mechanism 3, it achieves precise control of the alfalfa seedling cutting depth, ensuring the quality of the cutting operation.

[0039] The working principle of this device is as follows: When performing alfalfa cutting propagation, the alfalfa seedlings are first placed in the placement cavity 14 of the cutting component 7. The cutting support 5 slides laterally along the horizontal slide rail 4 on the inner wall of the sand bed body 1 via the slider 6 to adjust to the appropriate position. If it is necessary to adjust the position and spacing of the cutting component 7, loosen the limiting bolt 17 on the sliding seat 16. After the sliding seat 16 moves to the target position on the cutting support 5, tighten it to fix it. Rotate the rotating handwheel 25, which drives the rotating rod 20 to rotate the rotating cylinder 18 through the bevel gear transmission. Using the reverse threads on both sides of the rotating cylinder 18, the connecting block 19 and the cutting plate 13 move relative to each other or in opposite directions to complete the cutting operation. According to the alfalfa cutting requirements, rotate the lifting screw 10. Since the lifting screw 10 is threadedly connected to the lifting frame 9 and rotatably connected to the cutting support 5, the rotation of the screw drives the cutting support 5 to rise and fall along the guide rod 26, realizing precise control of the cutting depth. The ventilation holes 11 at the bottom of the sand bed body 1 ensure air circulation, and the filter screen 12 prevents sand from falling, creating a good environment for the growth of alfalfa seedlings.

[0040] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An alfalfa cutting sand culture device, characterized in that: The device includes a sand bed body (1), a cutting mechanism (2), and a lifting mechanism (3). The sand bed body (1) is a rectangular box structure, and horizontal slide rails (4) that can slide up and down are respectively provided on the inner walls of both sides of the sand bed body (1). The cutting mechanism (2) includes a cutting support (5), and sliders (6) are respectively provided on both sides of the cutting support (5). The sliders (6) are slidably connected to the horizontal slide rails (4) on their corresponding sides. The cutting support (5) is provided with several cutting operations. The cutting assembly (7) is provided with an adjustment mechanism (8) on the cutting bracket (5) for adjusting the position of the cutting assembly (7); the lifting mechanism (3) is used to adjust the cutting mechanism (2) by lifting and lowering. The lifting mechanism (3) includes a lifting frame (9), which can slide horizontally on the sand bed body (1). The middle part of the lifting frame (9) is threaded with a lifting screw (10), and the bottom of the lifting screw (10) is rotatably connected to the cutting bracket (5).

2. The alfalfa cutting sand culture device according to claim 1, characterized in that: The bottom of the sand bed body (1) is provided with a plurality of evenly distributed ventilation holes (11), and a filter screen (12) is provided at the bottom of the sand bed body (1) to prevent sand from falling out of the sand bed body (1).

3. The alfalfa cutting sand culture device according to claim 1, characterized in that: Each of the cutting assembly (7) includes two arc-shaped and symmetrically arranged cutting plates (13), and a placement cavity (14) is provided in the middle of the two cutting plates (13), which is used to place alfalfa seedlings.

4. The alfalfa cutting sand culture device according to claim 1, characterized in that: The adjustment mechanism (8) includes several adjustment holes (15) on the cutting support (5). The cutting support (5) is provided with a sliding seat (16). The sliding seat (16) is provided with a limiting bolt (17) that can be screwed into the adjustment hole (15). The sliding seat (16) is provided with a rotatable rotating cylinder (18). The two sides of the rotating cylinder (18) are respectively provided with external threads with opposite directions of rotation. The two sides of the sliding seat (16) are respectively provided with sliding connecting blocks (19). The two connecting blocks (19) are respectively located on the two sides of the sliding seat (16) and are threadedly connected to the rotating cylinder (18). The two connecting blocks (19) are respectively fixedly connected to the cutting plate (13) on their corresponding sides.

5. The alfalfa cutting sand culture device according to claim 4, characterized in that: The cutting support (5) is provided with a rotatable rotating rod (20), the rotating cylinder (18) is slidably connected to the rotating rod (20), and the cutting support (5) is provided with a driving assembly (21) that can drive the rotating rod (20) to rotate.

6. The alfalfa cutting sand culture device according to claim 5, characterized in that: The drive assembly (21) includes a transmission housing (22), which is fixed to one end of the insert bracket (5). A rotatable driven bevel gear (23) is provided inside the transmission housing (22). An active bevel gear (24) that can mesh with the driven bevel gear (23) is rotatably connected inside the transmission housing (22). A rotating handwheel (25) is provided on the top of the active bevel gear (24).

7. The alfalfa cutting sand culture device according to claim 1, characterized in that: The sand bed body (1) is provided with a guide rod (26), and the horizontal slide rail (4) is slidably connected to the guide rod (26).

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