Sweet potato seedling raising device
By using a rack and pinion mechanism to drive the swing plate, combined with a spring return mechanism, the problem of uneven watering in existing sweet potato seedling raising devices is solved, achieving uniform watering of the seedling rack and promoting the healthy growth of sweet potato seedlings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING ACAD OF AGRI SCI
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-14
AI Technical Summary
Existing sweet potato seedling raising devices cannot achieve uniform watering when replenishing water, which affects the growth and development of sweet potato seedlings.
A sweet potato seedling raising device was designed, which uses a rack and pinion mechanism to drive a swing plate, and uses pulleys to move the position of the nozzles. Combined with a spring return mechanism, it ensures that the nozzles spray water evenly on different positions of the seedling rack during movement.
It achieves uniform watering at all locations on the seedling rack, ensuring the normal growth of seedlings. The device has a simple structure and low cost, making it suitable for widespread application.
Smart Images

Figure CN224111787U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural equipment technology, specifically a sweet potato seedling raising device. Background Technology
[0002] Sweet potato, also known as yam, is a twining herbaceous vine belonging to the genus Dioscorea in the Convolvulaceae family. Its underground tubers swell at the tips of the branches into ovoid tubers with a smooth, pale yellow skin. The stems are left-spiraling, with thorns at the base and covered in T-shaped soft hairs. The leaves are simple, alternate, and broadly heart-shaped. The male inflorescence is a spike-like inflorescence, solitary, with sessile or very short pedicels. The bracts are ovate with an acuminate apex, and the perianth is shallowly cup-shaped and covered with short soft hairs. The capsule is trigonous, slightly concave at the apex, truncate at the base, with each ridge winged. The seeds are round and winged. Flowering occurs in early summer. Sweet potato is tolerant of poor soil and is not particular about soil type, but it thrives best in deep, loose, well-drained loam or sandy loam with high organic matter content and some fertility. Currently, sweet potato seedling cultivation devices often use nozzles to supplement water, but these nozzles are mostly fixed, making it impossible to evenly water the sweet potato seedlings in the seedling trays. Uneven watering can negatively impact the growth and development of sweet potatoes. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides a sweet potato seedling raising device that solves the problem of uneven watering.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a sweet potato seedling raising device, comprising a body and two sets of seedling racks disposed inside the body. Two sets of sliding grooves are respectively opened on the left and right sides of the body. Two sets of horizontal plates are slidably connected inside the body. Multiple sets of nozzles are provided at the bottom of the horizontal plates. A water tank is fixedly installed on the rear side of the body, and the nozzles and the water tank are connected. Moving columns are fixedly attached to the left and right sides of the horizontal plates. The moving columns pass through the sliding grooves and extend to the outside of the body. A pulley is movably sleeved on the outer side of the moving columns. Motors are fixedly installed on the left and right sides of the body. A threaded pipe is keyed to the output end of the motor. A sleeve is screwed onto the outer side of the threaded pipe. A rack is fixedly attached to the top and bottom of the sleeve. Two sets of central shafts are fixedly attached to the left and right sides of the body. A swing plate is movably sleeved on the outer side of the central shaft. A half gear is fixedly attached to the bottom of the swing plate, and the half gear meshes with the rack.
[0007] Preferably, a spring is fixed to the rear side of the movable column, and the rear end of the spring is fixed to the inner wall of the rear side of the slide groove.
[0008] Preferably, a limiting rod is fastened to the inner wall of the groove, and the movable column is slidably connected to the outside of the limiting rod.
[0009] Preferably, the inner wall of the chute is fitted with a buffer pad, which is a rubber buffer pad, and the buffer pad is located on the front side of the moving column.
[0010] Preferably, protective covers are tightly fitted on both the left and right sides of the machine body, and the protective covers are located outside the motor and the threaded tube.
[0011] (III) Beneficial Effects
[0012] Compared with the prior art, the present invention provides a sweet potato seedling raising device, which has the following beneficial effects:
[0013] 1. This sweet potato seedling raising device, through the cooperation between the rack and the half gear, causes the swing plate to swing by pushing the half gear when the rack moves. At this time, the swing plate will push the pulley to move during the swing, and the movement of the pulley will change the position of the nozzle. This allows the nozzle to spray water on different parts of the seedling rack during the movement, avoiding uneven watering in some parts of the seedling rack, ensuring the normal production of seedlings, and making it suitable for promotion.
[0014] 2. This sweet potato seedling raising device incorporates a spring. When the swing plate moves the pulley, the spring is compressed by the moving column. When the swing plate returns and no longer moves the pulley, the spring bounces back the moving column, causing the nozzle to return quickly to its initial position. This ensures the device can be reused. Furthermore, the spring is inexpensive and suitable for widespread adoption. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a partial structural cross-sectional view of the protective cover and body of this utility model;
[0017] Figure 3 for Figure 2 The exploded view of the structure is omitted after omitting the body, water tank, horizontal plate, nozzle, seedling rack and motor.
[0018] In the diagram: 1. Body; 2. Horizontal plate; 3. Nozzle; 4. Half gear; 5. Seedling rack; 6. Swing plate; 7. Moving column; 8. Central shaft; 9. Rack; 10. Protective cover; 11. Water tank; 12. Slide groove; 13. Pulley; 14. Spring; 15. Limiting rod; 16. Motor; 17. Sleeve; 18. Threaded pipe; 19. Buffer pad. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-3 This utility model provides a technical solution: a sweet potato seedling raising device, including a body 1 and two sets of seedling racks 5 set inside the body 1. Two sets of sliding grooves 12 are respectively opened on the left and right sides of the body 1. Two sets of horizontal plates 2 are slidably connected inside the body 1. Multiple sets of nozzles 3 are set at the bottom of the horizontal plates 2. A water tank 11 is fixedly set on the rear side of the body 1, and the nozzles 3 and the water tank 11 are connected. Moving columns 7 are fixedly attached to both the left and right sides of the horizontal plates 2. The moving columns 7 pass through the sliding grooves 12 and extend to the outside of the body 1. A buffer pad 19 is fixedly attached to the inner wall of the sliding groove 12. The buffer pad 19 is a rubber buffer pad and is located in front of the moving column 7. A pulley 13 is movably sleeved on the outer side of the moving column 7. Motors 16 are fixedly set on both the left and right sides of the body 1. The output end of the motor 16 is keyed to a screw. The outer side of the threaded tube 18 is fitted with a sleeve 17. The top and bottom of the sleeve 17 are both fitted with racks 9. Two sets of central shafts 8 are fitted to the left and right sides of the machine body 1 respectively. A swing plate 6 is movably sleeved on the outer side of the central shaft 8. The bottom of the swing plate 6 is fitted with a half gear 4, and the half gear 4 meshes with the rack 9. Through the cooperation between the rack 9 and the half gear 4, when the rack 9 is displaced, it will drive the swing plate 6 to swing by pushing the half gear 4. At this time, the swing plate 6 will push the pulley 13 to move during the swing. The movement of the pulley 13 will change the position of the nozzle 3, so that the nozzle 3 can spray water on different positions of the seedling rack 5 during the movement, avoiding uneven watering of local positions of the seedling rack 5, ensuring the normal production of seedlings, and is suitable for promotion.
[0021] Specifically, to enable the nozzle 3 to move back quickly, a spring 14 is fastened to the rear side of the moving column 7. The rear end of the spring 14 is fastened to the inner wall of the rear side of the slide groove 12. Thus, by setting the spring 14, when the swing plate 6 pushes the pulley 13 to move, the spring 14 will be squeezed by the moving column 7. When the swing plate 6 moves back and no longer pushes the pulley 13, the spring 14 will drive the nozzle 3 to move back by bouncing the moving column 7, so that the nozzle 3 can quickly return to the initial position, ensuring the reuse of the device. Moreover, the spring 14 is inexpensive and suitable for promotion.
[0022] Specifically, in order to maintain the balance of the moving column 7, a limit rod 15 is fastened to the inner wall of the slide groove 12, and the moving column 7 is slidably connected to the outside of the limit rod 15, thereby maintaining the balance of the moving column 7 through the limit rod 15.
[0023] Specifically, in order to protect the motor 16 and the threaded tube 18, protective covers 10 are fastened to both the left and right sides of the machine body 1. The protective covers 10 are located outside the motor 16 and the threaded tube 18, thereby protecting the motor 16 and the threaded tube 18.
[0024] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.
[0025] When in use, turn on the nozzle 3 to spray water from the water tank 11, then turn on the motor 16 so that its output end drives the threaded tube 18 to rotate. The rotation of the threaded tube 18 will drive the sleeve 17 to move backward. The backward movement of the sleeve 17 will drive the rack 9 to move backward and push the half gear 4 to rotate. The rotation of the half gear 4 will drive the swing plate 6 to swing. At this time, the swing of the swing plate 6 will push the pulley 13 to move backward. The movement of the pulley 13 will drive the horizontal plate 2 and the nozzle 3 to move through the moving column 7, so that the nozzle 3 can spray water on different positions of the seedling rack 5 while moving, avoiding uneven watering in some areas of the seedling rack 5.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A sweet potato seedling raising device, comprising a body (1) and two sets of seedling racks (5) disposed inside the body (1), characterized in that: Two sets of sliding grooves (12) are respectively opened on the left and right sides of the machine body (1). Two sets of horizontal plates (2) are slidably connected inside the machine body (1). Multiple sets of nozzles (3) are provided at the bottom of the horizontal plates (2). A water tank (11) is fixedly installed on the rear side of the machine body (1), and the nozzles (3) and the water tank (11) are connected. Moving columns (7) are tightly fixed on both the left and right sides of the horizontal plates (2). The moving columns (7) pass through the sliding grooves (12) and extend to the outside of the machine body (1). A pulley (13) is movably sleeved on the outside of the moving columns (7). Motors (16) are fixedly installed on both the left and right sides of the machine body (1). The output end of the motor (16) is keyed to a threaded tube (18). A sleeve (17) is screwed onto the outside of the threaded tube (18). A rack (9) is fastened to the top and bottom of the sleeve (17). Two sets of central shafts (8) are fastened to the left and right sides of the machine body (1). A swing plate (6) is movably sleeved on the outside of the central shaft (8). A half gear (4) is fastened to the bottom of the swing plate (6), and the half gear (4) meshes with the rack (9).
2. The sweet potato seedling raising device according to claim 1, characterized in that: The rear side of the movable column (7) is fixed with a spring (14), and the rear end of the spring (14) is fixed to the inner wall of the rear side of the slide groove (12).
3. The sweet potato seedling raising device according to claim 1, characterized in that: The inner wall of the groove (12) is fastened with a limiting rod (15), and the movable column (7) is slidably connected to the outside of the limiting rod (15).
4. The sweet potato seedling raising device according to claim 1, characterized in that: The inner wall of the chute (12) is fitted with a buffer pad (19), which is a rubber buffer pad, and the buffer pad (19) is located on the front side of the moving column (7).
5. The sweet potato seedling raising device according to claim 1, characterized in that: The machine body (1) has protective covers (10) tightly fitted on both the left and right sides. The protective covers (10) are located outside the motor (16) and the threaded pipe (18).