Light-load self-propelled automatic cellar digging and seedling dropping machine
By designing a lightweight, self-propelled automatic pit-digging and seedling-dispensing machine, which combines pit-digging and seedling-dispensing mechanisms, the problems of large size and low efficiency of existing equipment have been solved. This enables flexible and efficient pit-digging and seedling dispensing, adapting to different planting environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU RONGDA TECH CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-21
AI Technical Summary
Existing pit-digging and seedling-planting equipment is bulky, labor-intensive, and inefficient. Furthermore, the pit-digging and seedling-planting speeds need to be matched with the machine's travel speed, which requires high technical skills. In addition, existing hole-digging machines lack seedling-planting functions, resulting in low seedling-planting efficiency.
A lightweight, self-propelled automatic cellar-digging and seedling-planting machine was designed, comprising a frame, drive wheels, guide wheels, cellar-digging and seedling-planting mechanisms. The vertical movement of the cellar-digging mechanism is achieved through a lifting mechanism. Combined with the seedling guide tube and seedling tray, the automatic cellar-digging and seedling-planting are realized through the coordinated work of a motor drive and a controller.
It enables flexible operation in small tobacco fields, allowing for both pit construction and seedling placement. The pits are of high quality, adaptable to different ridge heights and widths, and flexible in adjustment, suitable for different planting spacings. This reduces the impact of human factors and improves operational efficiency.
Smart Images

Figure CN224139548U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a light-load self-propelled automatic cellar-digging and seedling-planting machine. Background Technology
[0002] Transplanting tobacco seedlings requires digging pits before placing the seedlings in. Traditionally, this is done manually, which is labor-intensive and inefficient. With automation, pit-digging machines and transplanting machines have been put into use, but they are generally quite large, and the speed of digging or transplanting must match the machine's travel speed, requiring a high level of skill from the operator. Therefore, some electric self-propelled machines are more popular among tobacco growers. Chinese Patent Application No. 202420099488.7 discloses a lightweight self-propelled hole-drilling machine for tobacco seedling transplanting. This machine can move more flexibly in smaller tobacco fields, while reducing labor intensity. The holes drilled are not affected by human factors, resulting in better hole quality and high drilling efficiency. It can drill two holes at a time and can also perform fertilization and watering simultaneously. However, this hole-drilling machine still needs to have a seedling placement function. Chinese patent application number 202322408849.X discloses a stepping electric leveling and transplanting machine. This transplanting machine is suitable for intercropping on flat land. It can both drill holes and release seedlings. However, the seedling falling channel composed of a seedling hopper, an upper seedling cylinder, and a lower seedling cylinder determines that only one seedling can be released at a time, resulting in low seedling release efficiency. Summary of the Invention
[0003] To address the aforementioned problems in the existing technology, this utility model provides a lightweight, self-propelled, automatic cellar-digging and seedling-planting machine.
[0004] The objective of this utility model is achieved in the following manner:
[0005] A lightweight, self-propelled automatic pit-digging and seedling-dispensing machine includes a frame with a handle at one end. A battery is installed on top of the frame, and two drive wheels and two guide wheels are located below the frame. The drive wheels are connected to the frame via a walking motor and a reducer. A pit-digging mechanism and a seedling-dispensing mechanism are located on top of the frame. The pit-digging mechanism is located at the front end of the seedling-dispensing mechanism and is mounted on the frame via a lifting mechanism. The pit-digging mechanism performs vertical reciprocating linear motion with the lifting mechanism. The pit-digging mechanism includes a pit-digging motor and a pit-digging drill. The head of the pit-digging drill is equipped with helical blades, and the pit-digging motor drives the pit-digging drill to rotate and drill out a pit. The seedling-dispensing mechanism includes a seedling tray, a seedling-dispensing motor, and a seedling guide tube. The seedling-dispensing motor is mounted on the frame and drives the seedling tray to rotate. The upper end of the seedling guide tube is connected to the seedling inlet of the seedling tray, and the lower end is connected to the pit. The battery provides power to the walking motor and reducer, the pit-digging motor, the seedling-dispensing motor, the lifting mechanism, and the controller. The walking motor and reducer, the pit-digging motor, the seedling-dispensing motor, and the lifting mechanism are all connected to the controller.
[0006] The lifting mechanism includes a lifting motor, gears, and a vertically arranged rack. The lifting motor drives the gears to rotate, and the gears and racks mesh, enabling the racks to move up and down.
[0007] The rack is mounted on the frame via a guide sleeve.
[0008] A fixed tube is fixedly connected to the end of the rack, and an adjusting tube is sleeved inside the fixed tube. The end of the adjusting tube is connected to a mounting plate. The kiln-breaking motor is fixedly mounted on the mounting plate. The adjusting tube can slide inside the fixed tube and is fixed by bolts.
[0009] The frame includes two telescopic crossbars at the front and rear. The two ends of the telescopic crossbars are connected to vertical sleeves. A vertical connecting rod is installed inside the vertical sleeve. The vertical sleeve and the vertical connecting rod are fixedly connected by bolts. The lower end of the vertical connecting rod is connected to a drive wheel or a guide wheel.
[0010] The upper end of one vertical connecting rod connecting to the drive wheel is connected to the pallet frame, or the upper ends of both vertical connecting rods connecting to the drive wheel are connected to the pallet frame.
[0011] A protective cover is installed on the rack.
[0012] Compared to existing technologies, the lightweight self-propelled automatic pit-making and seedling-planting machine disclosed in this utility model can move in small tobacco fields. It is small in size and light in weight, making it more flexible in use. It can both make pits and plant seedlings at the same time, and the pits made are of better quality. It is not affected by human factors. The wheel spacing and ground clearance can be adjusted to adapt to different ridge heights and ridge widths. The distance between the pit-making mechanism and the seedling guide tube can also be adjusted to suit crops with different planting spacings. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a structural schematic diagram of the present invention from another angle.
[0015] Figure 3 This is a schematic diagram of the structure of this utility model with the side panels removed.
[0016] Figure 4 This is a schematic diagram of the structure of this utility model from another angle after the side panels are removed.
[0017] In the diagram: Frame 1, Horizontal bar 11, Vertical sleeve 12, Vertical connecting rod 13, Walking motor 14, Drive wheel 2, Guide wheel 3, Pit-breaking mechanism 4, Pit-breaking motor 41, Pit-breaking drill 42, Spiral blade 43, Seedling feeding mechanism 5, Seedling tray 51, Seedling feeding motor 52, Seedling guide tube 53, Seedling feeding tube 54, Lifting mechanism 6, Lifting motor 61, Gear 62, Rack 63, Fixed pipe 64, Adjusting pipe 65, Guide sleeve 66, Handrail 7, Battery 8, Tray frame 9, Protective cover 10, Ridge 20, Controller 30. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. After reading the contents of the present invention, those skilled in the art can make various modifications or alterations to the present invention, and these equivalent forms also fall within the scope defined by the present invention.
[0019] like Figure 1-4 As shown, a light-duty self-propelled automatic cellar-digging and seedling-dispensing machine includes a frame 1, with a handle 7 connected to one end of the frame 1. A battery 8 is installed on the top of the frame. Two drive wheels 2 and two guide wheels 3 are arranged below the frame. The drive wheels 2 are connected to the frame via a walking motor 14 and a reducer. A cellar-digging mechanism 4 and a seedling-dispensing mechanism 5 are arranged on the top of the frame. The cellar-digging mechanism 4 is located at the front end of the seedling-dispensing mechanism 5. The cellar-digging mechanism 4 is mounted on the frame via a lifting mechanism 6. The cellar-digging mechanism 4 performs vertical reciprocating linear motion with the lifting mechanism 6. The cellar-digging mechanism 4 includes a cellar-digging motor 41 and a cellar-digging drill 42. The head of the cellar-digging drill 42 is equipped with a spiral blade 43. The cellar-digging motor 41 drives the cellar-digging drill 42 to rotate and drill out the cellar. The seedling feeding mechanism 5 includes a seedling tray 51, a seedling feeding motor 52, a seedling guide tube 53, and a seedling feeding tube 54. The seedling feeding motor 52 is mounted on the frame and drives the seedling tray 51 to rotate. The upper end of the seedling guide tube 53 is connected to the seedling feeding tube 54 on the seedling tray 51, and the lower end is connected to the pit. The storage battery 8 provides a power source for the walking motor 14 and reducer, the pit-breaking motor 41, the seedling feeding motor 52, the lifting mechanism 6, and the controller 30. The walking motor 14 and reducer, the pit-breaking motor 41, the seedling feeding motor 52, and the lifting mechanism 6 are all connected to the controller 30. The controller 30 controls the forward and reverse rotation of the walking motor 14 and reducer, the pit-breaking motor 41, the seedling feeding motor 52, and the lifting mechanism 6.
[0020] Preferably, the battery 8 is located at the front end of the rack and the controller 30 is located at the rear end of the rack, but they can also be located in other positions.
[0021] The frame 1 adopts a frame structure to provide overall support; two drive wheels 2, two guide wheels 3, a walking motor 14, and a reducer are used to form a walking mechanism to facilitate the movement and walking of the equipment. The two guide wheels 3 are respectively locked on both sides of the ridge 20 to guide the movement of the equipment and make it move along the length of the ridge; the handle 7 is for manual gripping to facilitate manual control and operation of the walking direction of the equipment.
[0022] Furthermore, to accommodate ridges 20 of varying widths, this can be achieved by adjusting the wheel spacing of the two guide wheels 3 and the wheel spacing of the two drive wheels 2. Specifically, a telescopic crossbar 11 is installed at the front and rear of the frame 1. The front telescopic crossbar is used to adjust the wheel spacing of the two guide wheels 3, and the rear telescopic crossbar is used to adjust the wheel spacing of the two drive wheels 2. The telescopic length is fixed by bolts, which is a mature technology in the prior art. The two ends of the telescopic crossbar 11 are respectively connected to vertical sleeves 12. A vertical connecting rod 13 is fitted inside the vertical sleeve 12. The vertical sleeve 12 and the vertical connecting rod 13 are fixedly connected by bolts. The lower end of the vertical connecting rod 13 is connected to the drive wheel 2 or the guide wheel 3. The vertical sleeve 12 and the vertical connecting rod 13 form a vertical telescopic mechanism, which can be used to adjust the height of the frame off the ground. Adjusting the height of the frame off the ground is to accommodate ridges 20 of different heights.
[0023] Furthermore, the upper end of one vertical connecting rod 13 connecting to the drive wheel 2 is connected to the tray frame 9, or the upper ends of both vertical connecting rods 13 connecting to the drive wheel 2 are connected to the tray frame 9. Seedling trays or other items can be placed on the tray frame 9, which is mainly used for placing seedling trays.
[0024] Furthermore, the lifting mechanism 6 includes a lifting motor 61, a gear 62, and a vertically arranged rack 63. The lifting motor 61 drives the gear 62 to rotate, and the gear 62 and the rack 63 mesh, so that the rack 63 can achieve lifting and lowering movement.
[0025] To limit the upper and lower limit positions of the rack, two proximity switches are also provided on the frame 1, corresponding to the upper and lower limit positions of the rack 63, respectively. These two proximity switches are used to assist in controlling the forward and reverse rotation of the lifting motor. Controlling the motor's forward and reverse rotation via proximity switches is a mature existing technology, and will not be described in detail in this embodiment.
[0026] When in use, the lifting motor 61 works, driving the gear 62 to rotate. The rotation of the gear 62 drives the rack 63 to move up / down. When the rack 63 moves to the limit position, the proximity switch sends a signal to the controller 30. The controller 30 controls the lifting motor 61 to rotate in the opposite direction, thereby causing the rack 63 to move down / up, thus realizing the overall lifting of the pit-breaking mechanism 4.
[0027] Furthermore, to ensure that the lifting and lowering movement of the rack 63 is not skewed, the lifting mechanism 6 also includes a guide sleeve 66, which is vertically fixed on the frame 1. Under the action of the lifting motor 61 and the gear 62, the rack 63 slides vertically in the guide sleeve 66, thereby controlling the vertical movement of the kiln-breaking mechanism 4 to prevent skew.
[0028] Furthermore, the end of the rack 63 is fixedly connected to the fixing tube 64, and the fixing tube 64 is fitted with an adjusting tube 65. The end of the adjusting tube 65 is connected to the mounting plate. The pit-breaking motor 41 is fixedly mounted on the mounting plate. The adjusting tube 65 can slide inside the fixing tube 64. After sliding to a certain position, it is fixed by bolts. The sliding of the adjusting tube 65 inside the fixing tube 64 allows the pit-breaking mechanism 4 to adjust the distance between itself and the seedling cylinder 54, that is, to adjust the seedling spacing.
[0029] A protective cover 10 is installed on the frame, which covers the entire frame, the cellar-breaking mechanism 4, the seedling feeding mechanism 5, and most of the lifting mechanism 6. This improves safety and reduces the impact of dust on the structural components. The protective cover 10 consists of multiple plates that are detachably connected to the frame. Handles are provided on the side plates for easy opening and maintenance of the internal structure.
[0030] This utility model discloses a lightweight, self-propelled automatic pit-making and seedling-planting machine that can move in small tobacco fields. It is small in size and light in weight, making it more flexible in use. It can both make pits and plant seedlings at the same time, and the pits made are of better quality. It is not affected by human factors. The wheel spacing and ground clearance can be adjusted to adapt to different ridge heights and ridge widths. The distance between the pit-making mechanism and the seedling guide tube can also be adjusted to suit crops with different planting spacings.
[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.
Claims
1. A light-duty self-propelled automatic seedling planting machine, comprising a frame (1), a handle (7) connected to one end of the frame (1), a battery (8) installed on the top of the frame, and two drive wheels (2) and two guide wheels (3) arranged below the frame. The drive wheels (2) are connected to the frame via a walking motor (14) and a reducer. The machine is characterized in that: A pit-making mechanism (4) and a seedling-feeding mechanism (5) are installed above the frame. The pit-making mechanism (4) is located at the front end of the seedling-feeding mechanism (5). The pit-making mechanism (4) is installed on the frame through a lifting mechanism (6). The pit-making mechanism (4) moves vertically back and forth in a straight line with the lifting mechanism (6). The pit-making mechanism (4) includes a pit-making motor (41) and a pit-making drill (42). The pit-making drill (42) is equipped with a spiral blade (43) at its head. The pit-making motor (41) drives the pit-making drill (42) to rotate and drill out the pit. The seedling-feeding mechanism (5) includes a seedling tray (51) and a seedling feeding mechanism. The motor (52) and seedling guide tube (53) are installed on the frame. The seedling motor (52) drives the seedling tray (51) to rotate. The upper end of the seedling guide tube (53) is connected to the seedling inlet of the seedling tray (51), and the lower end is connected to the cellar. The battery (8) provides power to the walking motor (14), reducer, cellar motor (41), seedling motor (52), lifting mechanism (6), and controller (30). The walking motor (14), reducer, cellar motor (41), seedling motor (52), and lifting mechanism (6) are all connected to the controller (30).
2. The light-duty self-propelled automatic seedling planting machine according to claim 1, characterized in that: The lifting mechanism (6) includes a lifting motor (61), a gear (62) and a vertically arranged rack (63). The lifting motor (61) drives the gear (62) to rotate, and the gear (62) and the rack (63) mesh, so that the rack can achieve lifting and lowering motion.
3. The light-load self-propelled automatic well-digging and seedling-planting machine according to claim 2, characterized in that: The rack (63) is mounted on the frame (1) via the guide sleeve (66).
4. The light-load self-propelled automatic well-digging and seedling-planting machine according to claim 2 or 3, characterized in that: The rack (63) is fixedly connected to the fixed tube (64) at the end. An adjusting tube (65) is fitted inside the fixed tube (64). The adjusting tube (65) is connected to the mounting plate at the end. The kiln-breaking motor (41) is fixedly mounted on the mounting plate. The adjusting tube (65) can slide inside the fixed tube (64) and is fixed by bolts.
5. The light load self-propelled automatic well-digging and seedling-planting machine according to claim 1, characterized in that: The frame (1) includes two telescopic crossbars (11) at the front and rear. The two ends of the telescopic crossbars are respectively connected to vertical sleeves (12). A vertical connecting rod (13) is installed inside the vertical sleeve (12). The vertical sleeve (12) and the vertical connecting rod (13) are fixedly connected by bolts. The lower end of the vertical connecting rod (13) is connected to a drive wheel (2) or a guide wheel (3).
6. The light-load self-propelled automatic cellar-throwing and seedling-planting machine according to claim 5, characterized in that: The upper end of one vertical connecting rod (13) connecting the drive wheel (2) is connected to the pallet frame (9), or the upper ends of both vertical connecting rods (13) connecting the drive wheel (2) are connected to the pallet frame (9).
7. The light load self-propelled automatic well-digging and seedling-planting machine according to claim 1, characterized in that: A protective cover (10) is installed on the frame.
Citation Information
Patent Citations
Stepping type electric flat ground punching transplanter
CN220823692U
Light-load self-propelled hole digger for transplanting tobacco seedlings
CN221510238U