Convenient type lotus root lifting tool for greenhouse lotus root planting

Abstract

The utility model discloses a convenient lotus root lifting tool for greenhouse lotus root planting belongs to the technical field of greenhouse lotus root planting, including cylinder, the length adjusting subassembly is connected to the cylinder, and the one side detachable connection of length adjusting subassembly has the shovel head, through the screw thread drive structure of screw column and removal column, can realize the adjustment of tool length, clockwise rotation handle makes removal column stretch out, adapts high shed body or deep water level operation, anticlockwise rotation makes removal column contract, adapts short shed body or shallow water level operation, need not replace the tool or temporary splicing, solve the operation pain point of traditional fixed length tool "bend the waist half squat " " toe foot pad height " of, through the clamping structure of card block -card slot and the elastic locking design of reset spring, only need to pull the pull block when replacing the shovel head can remove the fixed, after inserting the new shovel head, loosen the pull block can be automatic locking, 3-5 seconds are completed all the time, need not wrench, screwdriver etc.

Description

Technical Field

[0001] This utility model relates to the field of greenhouse lotus root cultivation technology, and in particular to a convenient lotus root harvesting tool for greenhouse lotus root cultivation. Background Technology

[0002] In the agricultural planting sector, lotus root, as an aquatic crop with both economic and nutritional value, has seen its cultivation model gradually shift from traditional open-field planting to intensive greenhouse cultivation. The greenhouse environment, by controlling temperature, humidity, and water level, effectively extends the lotus root's growth cycle and improves yield and quality, making it particularly suitable for the large-scale cultivation of high-value lotus root varieties and a crucial development direction for the current lotus root planting industry. However, the unique environment of greenhouse lotus root cultivation and the growth characteristics of lotus roots result in significant drawbacks with traditional harvesting methods.

[0003] Traditional lotus root harvesting tools have poor adaptability and are difficult to meet the space requirements of greenhouses. Simple shovels and hoes used for manual digging, while small in size, have a fixed length and cannot be adjusted according to different water depths and greenhouse heights. When the water level is deep, growers need to bend over or squat, which can easily lead to lower back strain. When the greenhouse is high or the lotus roots are buried deep, the tool length is insufficient, requiring them to stand on tiptoe or use props to elevate themselves, increasing the risk of accidents. Adjusting traditional fixed-length tools relies on "replacing tools" or "temporarily splicing," which is cumbersome and unstable. Temporarily spliced ​​extension rods are prone to loosening during digging, causing the shovel head to shift and requiring repeated adjustments.

[0004] During the cultivation of lotus roots in greenhouses, the state of the silt changes with the growth stage (the silt is thinner during the seedling stage and tighter during the mature stage due to the entangled roots), requiring different types of shovels (e.g., using a wide-toothed shovel to remove silt from thin mud and a sharp-bladed shovel to break ice in hard mud). However, traditional tools often have a welded and fixed structure for the shovel head and handle, making it impossible to change the shovel head according to the silt state. If multiple sets of tools are needed to adapt to different scenarios, it not only increases planting costs but also occupies the limited storage space in the greenhouse and reduces operational convenience. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a convenient lotus root harvesting tool for greenhouse lotus root cultivation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: it includes a cylinder, on which a length adjustment component is connected, and a shovel head is detachably connected to one side of the length adjustment component.

[0007] As a further description of the above technical solution:

[0008] The length adjustment assembly includes a cavity formed in a cylinder. A through hole is formed on one side wall of the cylinder. A threaded column is rotatably connected to the through hole via a bearing. One end of the threaded column extends to the outside of the cylinder and is welded with a crank handle. The other end of the threaded column extends to the inside of the cylinder and is threadedly connected to a movable column. One end of the movable column slides through one side wall of the cylinder and extends to the outside of the cylinder and is detachably connected to the shovel head.

[0009] As a further description of the above technical solution:

[0010] The movable column has a threaded hole, and the threaded column is threadedly connected to the threaded hole.

[0011] As a further description of the above technical solution:

[0012] Both sides of the movable column are fixed with sliders by bolts, and both sides of the inner surface of the cavity are provided with sliding grooves, and the two sliders are slidably connected in the two sliding grooves respectively.

[0013] As a further description of the above technical solution:

[0014] The handle has anti-slip texture on its outer surface.

[0015] As a further description of the above technical solution:

[0016] A slot is provided at one end of the movable column, and a locking block is welded to one side of the shovel head. The locking block is locked in the slot, and insertion holes are provided on both sides of the locking block. Fixed rods are slidably connected to both sides of the slot. The ends of the two fixed rods that are close to each other extend into the slot and are respectively inserted into the two insertion holes. Pulling blocks are welded to the ends of the two fixed rods that are far apart from each other, and a return spring is sleeved on the outside of the two fixed rods.

[0017] As a further description of the above technical solution:

[0018] The two ends of the return spring are welded to the outer surface of the moving column and the side of the pull block, respectively.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, the tool length can be adjusted by the threaded transmission structure of the threaded column and the moving column. Turning the handle clockwise makes the moving column extend, which is suitable for high greenhouses or deep water operations; turning it counterclockwise makes the moving column retract, which is suitable for low greenhouses or shallow water operations. There is no need to change tools or temporarily splice them, which solves the pain points of traditional fixed-length tools that require "bending over and squatting" and "standing on tiptoe to raise the height".

[0021] 2. In this utility model, through the locking structure of the card block and the elastic locking design of the return spring, when replacing the shovel head, you only need to pull the pull block to release the fixation. After inserting the new shovel head, you can automatically lock it by releasing the pull block. The whole process is completed in 3-5 seconds. No wrench, screwdriver or other tools are needed, which solves the limitation of traditional welding shovel heads that "one set of tools can only be used for one type of sludge". Attached Figure Description

[0022] Figure 1 This is a cylindrical cross-sectional view of a convenient lotus root harvesting tool for greenhouse lotus root cultivation proposed in this utility model.

[0023] Figure 2 This utility model provides an external schematic diagram of a convenient lotus root harvesting tool for greenhouse lotus root cultivation. Figure 1 ;

[0024] Figure 3 This utility model provides an external schematic diagram of a convenient lotus root harvesting tool for greenhouse lotus root cultivation. Figure 2 ;

[0025] Figure 4 This is a partially disassembled schematic diagram of a convenient lotus root harvesting tool for greenhouse lotus root cultivation proposed in this utility model.

[0026] Legend:

[0027] 1. Cylinder; 2. Shovel head; 3. Pull block; 4. Moving column; 5. Threaded column; 6. Handle; 7. Slide groove; 8. Slider; 9. Threaded hole; 10. Return spring; 11. Slot; 12. Fixing rod; 13. Locking block; 14. Insertion hole; 15. Cavity. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-4One embodiment of this utility model includes a cylinder 1, which serves as the basic support component of the tool and provides an installation carrier for the length adjustment component. Its compact columnar structure is adapted to the narrow row spacing of greenhouses, preventing collisions with the greenhouse structure or planting substrate during operation. A length adjustment component is connected to the cylinder 1, allowing for flexible adjustment of the overall length of the tool to accommodate different greenhouse heights and water depths. A shovel head 2 is detachably connected to one side of the length adjustment component. The shovel head 2, as the component that directly contacts the silt and lotus roots, can be changed into different shapes depending on the state of the silt, reducing the lotus root damage rate.

[0030] The length adjustment assembly includes a cavity 15 formed in the cylinder 1, which provides space for the extension and retraction of the movable column 4 and serves as the mounting base for the slide 7, ensuring a compact assembly structure. A through hole is formed on one side wall of the cylinder 1, providing a passage for the threaded column 5 and also for mounting a bearing. The threaded column 5 is rotatably connected to the through hole via a bearing. The bearing reduces frictional resistance during rotation, ensuring stable and non-deviation-prone rotation. The threaded column 5 serves as the core transmission component for length adjustment, converting rotational motion into linear motion of the movable column 4. One end of the threaded column 5 extends out of the cylinder 1 and is welded with a crank 6, providing a point of leverage for the user to easily drive the rotation of the threaded column 5. Anti-slip textures on its exterior increase hand friction, preventing slippage in muddy conditions. The other end of the threaded column 5 extends into the cylinder 1 and is threadedly connected to the movable column 4. The tool is used to extend and retract the shovel head 2, thus changing the tool length. One end of the moving column 4 slides through one side wall of the cylinder 1 and extends to the outside of the cylinder 1, and is detachably connected to the shovel head 2, ensuring that the shovel head 2 extends and retracts synchronously with the moving column 4. A threaded hole 9 is provided in the moving column 4, and a threaded column 5 is threadedly connected to the threaded hole 9. The threaded hole 9 and the threaded column 5 cooperate to form a threaded transmission structure, which is the key to realizing the axial movement of the moving column 4. Slider blocks 8 are fixed to both sides of the moving column 4 by bolts. Slide grooves 7 are provided on both sides of the inner surface of the cavity 15. The two sliders 8 are slidably connected to the two slide grooves 7 respectively. The sliders 8 and the slide grooves 7 cooperate to form a guide and limit structure, restricting the moving column 4 to move only along the axial direction, preventing it from rotating synchronously with the threaded column 5, and preventing the moving column 4 from falling out of the cylinder 1. The outside of the crank handle 6 is provided with anti-slip texture to increase the friction between the hand and the crank handle 6 and reduce the physical exertion of operation.

[0031] A slot 11 is provided at one end of the movable column 4. The slot 11 cooperates with the locking block 13 to achieve the initial positioning of the shovel head 2, ensuring accurate connection. A locking block 13 is welded to one side of the shovel head 2. The locking block 13 is locked in the slot 11. The locking block 13 serves as a transition component connecting the shovel head 2 and the movable column 4, ensuring a close connection between the two. Insertion holes 14 are provided on both sides of the locking block 13. The insertion holes 14 cooperate with the fixing rods 12 to achieve mechanical locking, improving the connection's firmness. Fixing rods 12 are slidably connected to both sides of the slot 11. The ends of the two fixing rods 12 that are close to each other extend into the slot 11 and are respectively inserted into the two insertion holes 14. The fixing rods 12 are connected by a "rod-hole" connection. Locking block 13 is used to prevent the shovel head 2 from falling off during operation; pull block 3 is welded to the ends of the two fixed rods 12 that are far apart from each other. The pull block 3 provides an operating end for the fixed rod 12, making it convenient for the user to pull the fixed rod 12 to unlock or pre-position; return spring 10 is sleeved on the outside of the two fixed rods 12. The two ends of the return spring 10 are welded to the outer surface of the moving column 4 and the side of the pull block 3, respectively. The return spring 10 pushes the fixed rod 12 to automatically reset through its own elasticity, ensuring that the fixed rod 12 is stably inserted into the insertion hole 14, simplifying the replacement operation of the shovel head 2. The surface of the threaded rod 5 is treated with galvanizing, chrome plating or other anti-corrosion treatments, or coated with anti-rust grease, thereby reducing rust and wear.

[0032] Working principle: When the tool length needs to be adjusted, the user rotates the crank handle 6 on the outside of the cylinder 1. The crank handle 6 drives the threaded column 5 welded to it to rotate synchronously. The threaded column is rotatably connected to the through hole on the side wall of the cylinder through the bearing, ensuring that the rotation process is stable and without deviation.

[0033] The threaded post 5 extends into the cavity 15 of the cylinder 1 from the end away from the crank handle, and is threadedly connected to the threaded hole 9 of the movable post 4. According to the principle of threaded transmission, the rotational motion of the threaded post 5 is converted into the axial linear motion of the movable post 4. When the crank handle 6 rotates clockwise, the threaded post drives the movable post to extend outward along the cavity 15 of the cylinder 1, increasing the overall length of the tool; when the crank handle 6 rotates counterclockwise, the movable post 4 retracts into the cavity 15, shortening the overall length of the tool.

[0034] The sliders 8, which are fixed to both sides of the movable column 4 by bolts, are respectively embedded in the sliding grooves 7 on both sides of the inner surface of the cavity 15, forming a sliding guide structure. This structure restricts the movable column to move only along the axial direction, preventing it from rotating synchronously with the threaded column, ensuring a smooth length adjustment process, and preventing the movable column from falling out of the cylinder, thus improving operational safety.

[0035] The anti-slip texture on the outside of the crank 6 increases the friction between the hand and the crank, preventing slippage even in muddy or wet environments and reducing physical exertion during adjustment.

[0036] When it is necessary to install the shovel head 2, first pull the pull blocks 3 to both sides. The pull blocks 3 drive the fixed rod 12 to move outward of the moving column 4. At this time, the return spring 10 outside the fixed rod 12 is stretched. Align the locking block 13 on one side of the shovel head 2 with the locking groove 11 at the end of the moving column and insert it. Release the pull blocks 3, and the return spring 10 releases its elastic potential energy, pushing the fixed rod 12 to return to the locking groove 11. Its end is inserted into the insertion holes 14 on both sides of the locking block to form a mechanical lock, thus completing the shovel head fixing. At this time, the shovel head is firmly connected to the moving column and can withstand the axial and radial forces during digging.

[0037] When it is necessary to change the shovel head, such as from a wide-toothed shovel for thin mud to a pointed-blade shovel for hard mud, pull the pull block 3 to both sides, and the fixing rod 12 will be pulled out from the insertion hole 14 of the locking block to release the lock. Then the shovel head can be pulled out from the slot 11. The whole process does not require tools and can be completed in 3-5 seconds.

[0038] During use, the extension length of the moving column 4 can be adjusted by crank 6 according to the water level depth and height of the greenhouse, so that the total length of the tool can be adapted to the operation requirements, such as lengthening in deep water areas and shortening in shallow water areas; according to the state of the silt, the corresponding shovel head 2 can be selected and quickly installed by the cooperation of the locking block 13 and the locking groove 11; during operation, the guiding effect of the slider 8 and the sliding groove 7 ensures that the shovel head exerts force stably and avoids deviation; after the operation is completed, the tool length can be shortened and replaced with a universal shovel head for easy storage in the greenhouse.

[0039] Through the synergy of the above structures, this tool achieves the core functions of "adjustable length + quick shovel head replacement", effectively solving the problems of poor adaptability and cumbersome operation of traditional tools, and improving the efficiency and convenience of harvesting lotus roots in greenhouses.

[0040] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. In order to ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-on," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction relationship between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A convenient lotus root harvesting tool for greenhouse lotus root cultivation, comprising a cylinder (1), characterized in that: A length adjustment component is connected to the cylinder (1), and a shovel head (2) is detachably connected to one side of the length adjustment component.

2. The convenient lotus root harvesting tool for greenhouse lotus root cultivation according to claim 1, characterized in that: The length adjustment assembly includes a cavity (15) opened in a cylinder (1). A through hole is opened on one side wall of the cylinder (1). A threaded column (5) is rotatably connected to the through hole by a bearing. One end of the threaded column (5) extends to the outside of the cylinder (1) and is welded with a crank (6). The other end of the threaded column (5) extends to the inside of the cylinder (1) and is threadedly connected to a movable column (4). One end of the movable column (4) slides through one side wall of the cylinder (1) and extends to the outside of the cylinder (1) and is detachably connected to the shovel head (2).

3. The convenient lotus root harvesting tool for greenhouse lotus root cultivation according to claim 2, characterized in that: The movable column (4) has a threaded hole (9), and the threaded column (5) is threadedly connected to the threaded hole (9).

4. The convenient lotus root harvesting tool for greenhouse lotus root cultivation according to claim 2, characterized in that: Both sides of the movable column (4) are fixed with sliders (8) by bolts. Both sides of the inner surface of the cavity (15) are provided with grooves (7). The two sliders (8) are slidably connected in the two grooves (7).

5. A convenient lotus root harvesting tool for greenhouse lotus root cultivation according to claim 2, characterized in that: The handle (6) has anti-slip texture on its exterior.

6. A convenient lotus root harvesting tool for greenhouse lotus root cultivation according to claim 2, characterized in that: One end of the movable column (4) is provided with a slot (11), and a locking block (13) is welded to one side of the shovel head (2). The locking block (13) is locked in the slot (11). Insertion holes (14) are provided on both sides of the locking block (13). Fixed rods (12) are slidably connected to both sides of the slot (11). The ends of the two fixed rods (12) that are close to each other extend into the slot (11) and are respectively inserted into the two insertion holes (14). Pulling blocks (3) are welded to the ends of the two fixed rods (12) that are far apart from each other. Return springs (10) are sleeved on the outside of the two fixed rods (12).

7. A convenient lotus root harvesting tool for greenhouse lotus root cultivation according to claim 6, characterized in that: The two ends of the reset spring (10) are welded to the outer surface of the moving column (4) and the side of the pull block (3), respectively.

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