Fertilizing tool for nursery stock maintenance

Abstract

The utility model discloses a nursery stock maintenance fertilization tool which comprises a tumbril, a counterweight mechanism is arranged on the tumbril, the counterweight mechanism comprises two middle rods, a counterweight block, an outer sleeve and a pressure spring, the two middle rods are respectively arranged on the tumbril, and the counterweight block is arranged on the outer sleeve. A plurality of balancing weights are installed on each middle rod in a sleeving mode, an outer sleeve is installed on each middle rod in a sleeving mode, and according to the innovative nursery stock maintaining and fertilizing tool, the problem of driving failure of traditional fertilizing equipment in the last stage of operation is thoroughly solved through an intelligent balancing weight system which is ingeniously designed; the whole-course stable and continuous fertilization operation is realized. The core technical advantage is that an adjustable counterweight mechanism is introduced, and the mechanism can automatically maintain the balance of the overall weight of the equipment according to the fertilizer consumption condition in the fertilizing process, so that enough friction force is always kept between the driving wheel and the ground.

Description

Technical Field

[0001] This utility model relates to the field of seedling maintenance and fertilization technology, and more specifically, it relates to a seedling maintenance and fertilization tool. Background Technology

[0002] In contemporary landscaping and agricultural and forestry production, seedling maintenance and fertilization are crucial for ensuring plant growth and development, and the optimization of their technical equipment has always been a focus. However, currently available seedling maintenance and fertilization tools face a common and serious technical problem in practical application—the problem of discontinuous fertilization. Specifically, most existing fertilization mechanisms adopt a manually pushed design. Their working principle involves the operator pushing the entire device, causing the drive wheel in contact with the ground to rotate, which in turn activates the fertilization system through a transmission mechanism, distributing fertilizer evenly around the seedling roots. This mechanism, relying on the friction between the drive wheel and the ground for power transmission, usually performs well in the initial and middle stages of fertilization, because at this time the fertilizer tank contains a large amount of fertilizer, the entire device is relatively heavy, and sufficient friction is generated between the drive wheel and the ground to ensure stable transmission. However, as fertilization continues, the fertilizer in the tank gradually decreases, the overall weight of the device drops significantly, leading to reduced contact pressure between the drive wheel and the ground, insufficient friction, and ultimately, slippage of the drive wheel at the end of the fertilization process. This slippage not only causes the transmission system to malfunction and results in inconsistent fertilizer application, but more seriously, it can lead to some areas completely lacking fertilizer, disrupting the continuity and uniformity of the entire fertilization process.

[0003] From a technical perspective, this interruption in fertilization has multiple negative effects on seedling maintenance quality and work efficiency. First, from the perspective of seedling growth, uneven fertilization directly leads to significant differences in the amount of nutrients received by different plants within the same area, resulting in inconsistent growth. Some plants experience stunted growth due to insufficient nutrients, while others may suffer fertilizer burn due to localized over-fertilization. Ultimately, this leads to inconsistent quality across the entire batch of seedlings, reducing their commercial value and survival rate. Second, from an operational efficiency perspective, when operators discover that slippage of the drive wheels has interrupted fertilization, they usually need to return to fertilize again or add extra manual assistance. This not only prolongs the work time but also significantly increases labor intensity. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a seedling maintenance and fertilization tool to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a seedling maintenance and fertilization tool, including a fertilization cart, on which a counterweight mechanism is provided. The counterweight mechanism includes a central rod, counterweight blocks, an outer sleeve, and a compression spring. Two central rods are provided, and the two central rods are respectively installed on the fertilization cart. Multiple counterweight blocks are sleeved on each central rod. An outer sleeve is sleeved on each central rod. A compression spring is installed on the outer sleeve and abuts against the counterweight blocks. A chuck is provided on the outer wall of the outer sleeve. Multiple elastic plates are attached to the side wall of the chuck. Multiple locking balls are equally spaced on each elastic plate and are locked onto the chuck. Push plates are provided on the multiple elastic plates. The push plates and the outer sleeve are coaxially arranged.

[0008] The present invention is further configured such that multiple inclined grooves are equally spaced on the inner wall of the outer sleeve, and an inclined block is slidably disposed in each of the inclined grooves.

[0009] The present invention is further configured such that each of the plurality of inclined blocks is provided with a push spring, and the other end of the plurality of push springs is provided with a friction plate, and the plurality of friction plates respectively abut against the side wall of the intermediate rod.

[0010] The present invention is further configured such that a pressure sleeve is coaxially provided on the push plate, and the pressure sleeve is slidably connected inside the outer sleeve.

[0011] The present invention is further configured such that the upper ends of the plurality of inclined blocks are respectively provided with springs, and the upper ends of the plurality of springs respectively abut against the lower end surface of the pressure sleeve.

[0012] The present invention is further configured such that a drive wheel is rotatably provided on the fertilizer applicator, and a drive mechanism is installed on the fertilizer applicator.

[0013] The present invention is further configured such that a discharge plate is symmetrically fixed on the fertilizer applicator, a paddle is rotatably provided inside the discharge plate, and the drive mechanism is connected to the paddle.

[0014] The present invention is further configured such that the fertilizer applicator is provided with a material box, which is connected to the two discharge trays.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a seedling maintenance and fertilization tool, which has the following beneficial effects:

[0017] This innovative seedling maintenance and fertilization tool completely solves the drive failure problem that occurs at the end of traditional fertilization equipment through a cleverly designed intelligent counterweight system, achieving stable and continuous fertilization throughout the entire process. Its core technological advantage lies in the introduction of an adjustable counterweight mechanism. This mechanism automatically maintains the overall weight balance of the equipment based on fertilizer consumption during fertilization, ensuring sufficient friction between the drive wheels and the ground. As fertilizer in the hopper gradually decreases during fertilization, the weight of the machine drops, and the counterweight system automatically adjusts the position of the counterweight blocks through a precise combination of elastic elements to maintain appropriate downward pressure. This intelligent weight compensation mechanism is particularly suitable for large-scale nurseries and forest farms, ensuring a stable and uniform fertilization rate from start to finish, avoiding interruptions or uneven fertilization caused by drive wheel slippage in traditional equipment. In practical application, this design allows fertilization to be completed in one go, eliminating the need for frequent rework or additional thrust by operators, significantly improving operational efficiency and fertilizer application accuracy.

[0018] Even more commendable is the fact that this fertilizer is equipped with a highly safe and reliable counterweight fixing system, employing a multi-locking mechanism to ensure the counterweight is stable and safe during use. Its meticulously designed outer sleeve and central rod utilize an innovative friction locking structure. Through the clever cooperation of the inclined block, push spring, and friction plate, the locking force is automatically enhanced under stress, creating a self-locking effect. This ensures that even when operating on bumpy roads, there will be no safety hazard of the counterweight loosening or falling off. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a seedling maintenance and fertilization tool according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the outer sleeve in this utility model;

[0021] Figure 3 This is a cross-sectional view of the pressure sleeve and the outer sleeve of this utility model.

[0022] Figure 4 This is a schematic diagram of the elastic plate in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the outer sleeve in this utility model.

[0024] In the diagram: 1. Fertilizer applicator; 2. Intermediate rod; 3. Counterweight; 4. Outer sleeve; 5. Compression spring; 6. Chuck; 7. Elastic plate; 8. Ball catcher; 9. Push plate; 10. Inclined groove; 11. Inclined block; 12. Push spring; 13. Friction plate; 14. Pressure sleeve; 15. Spring; 16. Drive wheel; 17. Discharge plate; 18. Paddle; 19. Material box; 20. Drive mechanism. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0028] Please see Figure 1-5 A seedling maintenance and fertilization tool includes a fertilization cart 1, which is equipped with a counterweight mechanism. The counterweight mechanism includes a central rod 2, counterweight blocks 3, an outer sleeve 4, and a compression spring 5. There are two central rods 2, each mounted on the fertilization cart 1. Multiple counterweight blocks 3 are fitted onto each central rod 2. An outer sleeve 4 is fitted onto each central rod 2, and a compression spring 5 is mounted on the outer sleeve 4, which abuts against the counterweight blocks 3. A chuck 6 is provided on the outer wall of the outer sleeve 4, and multiple elastic plates 7 are attached to the side wall of the chuck 6. Multiple locking balls 8 are evenly spaced on each elastic plate 7 and are locked onto the chuck 6. Push plates 9 are provided on the multiple elastic plates 7, and the push plates 9 and the outer sleeve 4 are coaxially arranged. Multiple... Each inclined groove 10 has a sliding inclined block 11, and each inclined block 11 has a push spring 12. The other end of each push spring 12 has a friction plate 13, which abuts against the side wall of the intermediate rod 2. A pressure sleeve 14 is coaxially mounted on the push plate 9 and is slidably connected to the outer sleeve 4. Each inclined block 11 has a spring 15 at its upper end, and the upper end of each spring 15 abuts against the lower end face of the pressure sleeve 14. A drive wheel 16 is rotatably mounted on the fertilizer applicator 1. A drive mechanism 20 is mounted on the fertilizer applicator 1. A discharge plate 17 is symmetrically fixed on the fertilizer applicator 1. A paddle 18 is rotatably mounted inside the discharge plate 17. The drive mechanism 20 is connected to the paddle 18. A material box 19 is mounted on the fertilizer applicator 1 and is connected to the two discharge plates 17.

[0029] In this embodiment, before fertilization, a corresponding counterweight needs to be added. The corresponding counterweight sleeve is installed inside the intermediate rod 2, and then the outer sleeve 4 is slidably connected to the intermediate rod 2 and abuts against the counterweight block 3 through the compression spring 5. The compression spring 5 applies pressure and pushes the push plate 9 downward. Then, the locking ball 8 on the elastic plate 7 is locked onto the chuck 6, so that the pressure sleeve 14 is in a fixed state. Then, the spring 15 presses on the inclined block 11, so that the inclined block 11 retracts towards the axis, and the friction plate 13 adheres to the side wall of the intermediate rod 2, thus ensuring the stability of the fixation. Due to the counter-pushing of the compression spring 5, the inclined block 11 retracts along the inclined groove 10, thus ensuring the stability of the locking.

[0030] More specifically, the friction of the drive wheel 16 is increased by the counterweight 3, and then the drive wheel 16 is rotated by pushing the fertilizer applicator 1. The drive mechanism 20 drives the paddle 18 to rotate. Since the discharge plate 17 is connected to the material box 19, the paddle 18 will sprinkle fertilizer, thus completing the fertilization process.

[0031] In summary, when using or operating the entire equipment: before fertilization, a corresponding counterweight needs to be added. The corresponding counterweight sleeve is installed inside the intermediate rod 2, and then the outer sleeve 4 is slidably connected to the intermediate rod 2. It then abuts against the counterweight block 3 via the compression spring 5. Pressure is applied by the compression spring 5, pushing the push plate 9 downwards. Then, the ball 8 on the elastic plate 7 is engaged with the chuck 6, fixing the pressure sleeve 14 in a fixed state. Finally, the spring 15 presses against the inclined block 11, causing the inclined block 11 to retract towards the axis. The friction plate 13 is attached to the side wall of the intermediate rod 2, thus ensuring the stability of the fixation. Due to the counter-push of the compression spring 5, the inclined block 11 retracts along the inclined groove 10, thus ensuring the stability of the snap-fit. The friction of the drive wheel 16 is increased by the counterweight block 3. Then, the drive wheel 16 is rotated by pushing the fertilizer applicator 1, and the drive mechanism 20 drives the rotation of the paddle 18. Since the discharge plate 17 is connected to the material box 19, the paddle 18 will sprinkle fertilizer, thus completing the fertilization process.

[0032] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A seedling maintenance and fertilization tool, including a fertilizer applicator (1), characterized in that: The fertilizer applicator (1) is equipped with a counterweight mechanism, which includes a middle rod (2), a counterweight block (3), an outer sleeve (4), and a compression spring (5). There are two middle rods (2), and the two middle rods (2) are respectively installed on the fertilizer applicator (1). Multiple counterweight blocks (3) are respectively sleeved on each middle rod (2). An outer sleeve (4) is respectively sleeved on each middle rod (2). A compression spring (5) is installed on the outer sleeve (4). The compression spring (5) abuts against the counterweight block (3). A chuck (6) is provided on the outer wall of the outer sleeve (4). Multiple elastic plates (7) are attached to the side wall of the chuck (6). Multiple locking balls (8) are equally spaced on each elastic plate (7). The locking balls (8) are locked on the chuck (6). A push plate (9) is provided on the multiple elastic plates (7). The push plate (9) and the outer sleeve (4) are coaxially arranged.

2. The seedling maintenance and fertilization tool according to claim 1, characterized in that: Multiple inclined grooves (10) are equally spaced on the inner wall of the outer sleeve (4), and an inclined block (11) is slidably disposed in each of the inclined grooves (10).

3. The seedling maintenance and fertilization tool according to claim 2, characterized in that: Each of the inclined blocks (11) is provided with a push spring (12), and the other end of each of the push springs (12) is provided with a friction plate (13). Each of the friction plates (13) abuts against the side wall of the intermediate rod (2).

4. The seedling maintenance and fertilization tool according to claim 3, characterized in that: The push plate (9) is coaxially provided with a pressure sleeve (14), which is slidably connected inside the outer sleeve (4).

5. The seedling maintenance and fertilization tool according to claim 4, characterized in that: Each of the inclined blocks (11) has a spring (15) at its upper end, and the upper ends of the springs (15) abut against the lower end face of the pressure sleeve (14).

6. The seedling maintenance and fertilization tool according to claim 1, characterized in that: The fertilizer applicator (1) is equipped with a drive wheel (16) that rotates on it, and a drive mechanism is installed on the fertilizer applicator (1).

7. The seedling maintenance and fertilization tool according to claim 6, characterized in that: The fertilizer applicator (1) is symmetrically fixed with a discharge plate (17), and a paddle (18) is rotatably provided inside the discharge plate (17). The drive mechanism is connected to the paddle (18).

8. The seedling maintenance and fertilization tool according to claim 7, characterized in that: The fertilizer applicator (1) is equipped with a material box (19), which is connected to the two discharge trays (17).

Images