Seedling taking device of transplanter

By designing the drive connecting frame and seedling picking tube, the problems of time-consuming, labor-intensive, and low survival rate of existing seedling picking devices during large-scale transplanting are solved, achieving efficient and low-cost seedling picking and protective transportation.

CN224250214UActive Publication Date: 2026-05-19HENAN BAIHENG ENERGY SAVING TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN BAIHENG ENERGY SAVING TECH
Filing Date
2025-04-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing transplanter seedling picking devices are time-consuming and labor-intensive to operate when transplanting large numbers of seedlings. Automated devices are expensive and have high maintenance costs. In addition, the seedling picking process can easily shake off the soil on the surface of the seedling roots, affecting the survival rate.

Method used

The system employs a drive-connecting frame and seedling-collecting tube structure. Multiple seedling-collecting tubes are positioned by electromagnet adsorption, and combined with a push cylinder and push plate mechanism, it achieves efficient seedling collection and protective transportation of multiple seedlings, reducing water loss.

Benefits of technology

It improves transplanting efficiency, reduces operational difficulty and cost, and ensures the survival rate of seedlings during seedling collection and transportation.

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Abstract

The utility model discloses a seedling taking device of a transplanter, and relates to the technical field of transplanters. The seedling taking device comprises a driving connecting frame and seedling taking pipes, limiting connecting frames are clamped and fixed to the two sides of the bottom of the driving connecting frame, a pushing air cylinder is clamped to the top of the driving connecting frame in a sliding mode, a plurality of seedling taking pipes are inserted into the two limiting connecting frames, a bulldozing frame is clamped into each seedling taking pipe in a sliding mode, and a second pushing plate is arranged on the top of each seedling taking pipe. By arranging the driving connecting frame and the seedling taking pipe, the seedling taking device solves the problems that a seedling taking device with a simple structure is difficult to quickly transplant a large number of seedlings, a seedling taking device with a higher automation degree is high in cost and difficult to put into use actually, and when the seedlings are dug out through the device, a small amount of soil on the surfaces of root systems of part of the seedlings is frequently shaken off, so that the seedling taking device is inconvenient to use. And the survival rate of the transplanted seedlings is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of transplanter technology, and in particular relates to a seedling taking device for a transplanter. Background Technology

[0002] Transplanting refers to the process of moving seedlings from their original growing location and planting them in a suitable place for continued growth. It involves uprooting or digging up seedlings sown in seedbeds, nurseries, or containers, and then planting them in open fields or other designated soil to provide them with more spacious and suitable growing space, promoting their healthy growth and development. In agricultural production, large numbers of seedlings are often transplanted. To improve transplanting efficiency, transplanting machines are typically used to assist workers in the transplanting operation. However, transplanting machines often require a seedling-retrieving device to dig the seedlings from their original growing location for subsequent transplanting. But in practice, however, the following drawbacks still exist:

[0003] Utility model CN214592836U discloses a seedling picking device for a transplanter. The crank-connecting rod mechanism is a four-bar linkage, with one end of the crank and rocker fixed to a bracket, and the two ends of the connecting rod connected to one end of the crank and the rocker respectively. The guide rail is fixed to the bracket. A strip-shaped hole is opened on one end face of the rocker, and a clamp is provided in the strip-shaped hole. A seedling picking mechanism is screwed on the clamp. The seedling picking mechanism also includes a miniature cylinder, a seedling picking needle, a finger rod, and a seedling lifting frame. Simple seedling picking devices can often only dig out one seedling at a time. When a large number of seedlings need to be transplanted, the operation is time-consuming and laborious. On the other hand, seedling picking devices with a higher degree of automation have complex structures, high costs, and high maintenance costs, and are often difficult to put into practical use.

[0004] After seedlings are dug up from their original growing site, the seedling removal device often needs to transport them over a distance. Because seedlings have few leaves and underdeveloped root systems, there is little soil attached to their surface. As a result, the seedlings lose moisture quickly after being removed from their original growing site. When the seedling removal device digs up the seedlings, it is easy to shake off the soil on the surface of the seedling roots, which affects the survival rate of the seedlings after transplanting. Utility Model Content

[0005] The purpose of this utility model is to provide a seedling taking device for a transplanter. By driving the connecting frame and the seedling taking tube, it solves the problem that simple seedling taking devices are difficult to handle the rapid transplanting of a large number of seedlings, and highly automated seedling taking devices are expensive and difficult to put into practical use. When digging out the seedlings through the device, some of the little soil on the surface of the seedling roots is often shaken off, which reduces the survival rate of the seedlings after transplanting.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a seedling taking device for a transplanter, including a drive connecting frame and a seedling taking tube. The bottom two sides of the drive connecting frame are fixedly connected to limit connecting frames. A push cylinder is slidably connected to the top of the drive connecting frame. Multiple seedling taking tubes are inserted into the two limit connecting frames. A soil pushing frame is slidably connected to each seedling taking tube. A second push plate is provided at the top of each seedling taking tube.

[0008] Based on the planting spacing of the seedlings, multiple seedling-collecting tubes are attached to suitable positions within two limiting connecting frames. Electromagnets are used to attract and position these tubes. During seedling collection, the mechanical structure of the transplanter pushes the connecting frames downwards, inserting the seedling-collecting tubes into the soil. This improves transplanting efficiency, and the seedlings and some soil enter the seedling-collecting tubes, protecting them and reducing moisture loss during transport and short-term storage after digging. When transplanting seedlings, the push cylinder is moved to a suitable position, driving the first push plate downwards, which in turn moves the second push plate downwards, causing the pusher frame to move downwards and push the seedlings and potting soil out of the seedling-collecting tubes. The structure is simple and easy to operate. Furthermore, when the transplanting volume is small or during power outages, workers can manually operate the seedling-collecting tubes to collect seedlings, increasing the flexibility of the device.

[0009] Furthermore, a mounting bracket is welded and fixed to one side of the drive connecting frame, a sliding groove is opened through the top of the drive connecting frame, and an electromagnet is snapped and fixed to the bottom of each limiting connecting frame;

[0010] The mounting frame allows the drive connecting frame and the transplanter's mechanical structure to be connected, enabling the transplanter to move the drive connecting frame up and down for automatic seedling removal. When there are only a few seedlings to be transplanted, the operator can take an appropriate amount of seedling removal tubes and manually operate them to remove the seedlings, thus improving the flexibility of the device.

[0011] Furthermore, a telescopic rod is slidably engaged at the bottom of the push cylinder, a first push plate is engaged at the bottom of the telescopic rod, a stepper motor is engaged at one end of the slide groove, a threaded rod is engaged at one end of the stepper motor, a slider is screwed onto the outer circumference of the threaded rod, the slider is slidably engaged in the slide groove, and the telescopic rod is inserted through and inserted into one side of the top of the slider.

[0012] One end of the slider is connected to a threaded tube, and the threaded rod is screwed into the threaded tube. When it is necessary to remove the seedlings from the seedling tube, the stepper motor is controlled to drive the threaded rod to rotate, which in turn drives the slider to move along the slide groove, which in turn drives the push cylinder to move to the appropriate position and push out the corresponding seedlings.

[0013] Furthermore, a handle is welded and fixed to the top of the outer periphery of each seedling tube, a vent hole is opened through the top of the outer periphery of each seedling tube, and an adsorption plate is snapped and fixed to the top of each seedling tube, the adsorption plate being attached to the bottom of the electromagnet.

[0014] The ventilation holes allow for airflow inside and outside the seedling tube, ensuring that the seedlings can respire normally while stored in the tube. The seedling tube also reduces contact between the seedlings, soil, and airflow, preventing rapid water loss and allowing the seedlings to be stored in the tube for a short period while maintaining their condition.

[0015] Furthermore, a scraper is welded and fixed to the bottom of each bulldozer frame, the scraper being fitted against the inner wall of the seedling-taking tube. A connecting rod is welded and fixed to the top of each bulldozer frame, the connecting rod being inserted through and inserted into the top of the seedling-taking tube. The connecting rod is snapped and fixed to the bottom of the second push plate. A return spring and a limiting rod are snapped into the bottom of the second push plate. The return spring is sleeved on the outside of the limiting rod, the bottom of the return spring being snapped into the top of the seedling-taking tube. The bottom of the limiting rod is inserted through and inserted into the top of the seedling-taking tube. The limiting rod, the return spring, and the connecting rod are inserted through and inserted into the top between the two limiting connecting frames.

[0016] When taking seedlings, simply insert the seedling-taking tube into the outer surface of the seedling by hand or with a transplanting machine, ensuring the bottom of the tube is inserted into the soil at an appropriate distance. Then, move the seedling-taking tube upwards to dig out the seedling. The inner wall of the seedling-taking tube has an anti-slip surface to further prevent the soil from slipping and falling. When transplanting is needed, the movement of the first push plate moves the second push plate, or the second push plate can be pushed manually to move the soil-pushing frame downwards, pushing out the soil and seedlings. The operation is simple and convenient. The scraper can scrape off the soil adhering to the inner wall of the seedling-taking tube, and the return spring can reset the second push rod for easy use next time.

[0017] This utility model has the following beneficial effects:

[0018] This invention solves the problems of simple seedling-picking devices, which can only dig out one seedling at a time, making it time-consuming and laborious when transplanting a large number of seedlings, and highly automated seedling-picking devices, which are complex in structure, expensive in cost, and have high maintenance costs, making them difficult to put into practical use. Based on the planting spacing of the seedlings, multiple seedling-picking tubes are placed at appropriate positions within two limiting connecting frames. During seedling picking, the mechanical structure of the transplanter pushes the driving connecting frame downwards, inserting the seedling-picking tubes into the soil to pick up multiple seedlings. When it is necessary to transplant the seedlings in the seedling-picking tubes, the pushing cylinder is controlled to move the second pushing plate, or the second pushing plate is manually pushed, which drives the soil-pushing frame downwards to push out the soil and seedlings. The structure is simple and the operation is convenient.

[0019] This invention solves the problem of seedlings needing to be transported a distance after being dug up from their original growing site by setting up a seedling-collecting tube. Because seedlings have few leaves, underdeveloped root systems, and little soil adhering to their surface, they lose moisture quickly after being removed from their original growing site. Furthermore, the seedling-collecting device often shakes off soil from the seedling roots during digging, affecting the survival rate of the transplanted seedlings. After the seedling-collecting tube is inserted into the soil, ventilation holes allow air to circulate inside and outside the tube, ensuring that the seedlings can respire normally while stored inside. The tube also reduces contact between the seedlings, soil, and airflow, preventing rapid moisture loss and allowing the seedlings to be stored in the tube for a short period while maintaining their condition. Attached Figure Description

[0020] Figure 1 This is a structural rendering of the present invention;

[0021] Figure 2 This is a structural diagram of the drive connection frame of this utility model;

[0022] Figure 3 This is a bottom view of the drive connection frame of this utility model;

[0023] Figure 4 This is a structural diagram of the cylinder and slider of this utility model;

[0024] Figure 5 This is a structural diagram of the seedling tube of this utility model;

[0025] Figure 6 This is a cross-sectional view of the seedling tube of this utility model.

[0026] Figure label:

[0027] 1. Drive connecting frame; 101. Push cylinder; 102. Limit connecting frame; 103. Slide groove; 104. Mounting frame; 105. Electromagnet; 106. Telescopic rod; 107. First push plate; 108. Slider; 109. Threaded rod; 110. Stepper motor; 2. Seedling tube; 201. Second push plate; 202. Handle; 203. Ventilation hole; 204. Adsorption plate; 205. Return spring; 206. Limit rod; 207. Connecting rod; 208. Bulldozer frame; 209. Scraper. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] Please see Figure 1-6As shown, this utility model is a seedling taking device for a transplanter, including a drive connecting frame 1 and a seedling taking tube 2. The bottom two sides of the drive connecting frame 1 are fixedly connected to a limit connecting frame 102. The top of the drive connecting frame 1 is slidably connected to a push cylinder 101. Multiple seedling taking tubes 2 are inserted into the two limit connecting frames 102. Each seedling taking tube 2 is slidably connected to a pusher 208. A second push plate 201 is provided on the top of each seedling taking tube 2.

[0030] Based on the planting spacing of the seedlings, multiple seedling tubes 2 are attached to suitable positions within two limiting connecting frames 102, and the multiple seedling tubes 2 are attracted and positioned by electromagnets 105. When taking seedlings, the mechanical structure of the transplanter pushes the drive connecting frame 1 downward, so that the seedling tube 2 is inserted into the soil, allowing the seedling and the soil around its roots to enter the seedling tube 2. Then, the drive connecting frame 1 and the seedling tube 2 are driven upward, so that the seedling tube 2 is removed from the soil surface. The seedling tube 2 protects the seedlings and soil, reducing water loss during transportation and short-term storage after the seedlings are dug up. When the seedlings need to be transplanted, the push cylinder 101 is controlled to a suitable position, and the push cylinder 101 drives the first push plate 107 downward, which in turn drives the second push plate 201 downward, causing the pusher frame 208 to move downward and push the seedlings and potting soil out of the seedling tube 2.

[0031] Among them, such as Figure 1-4 As shown, a mounting bracket 104 is welded and fixed to one side of the drive connecting bracket 1. A sliding groove 103 is opened through the top of the drive connecting bracket 1. An electromagnet 105 is snapped and fixed at the bottom of each limiting connecting bracket 102. A telescopic rod 106 is slidably snapped at the bottom of the push cylinder 101. A first push plate 107 is snapped at the bottom of the telescopic rod 106. A stepper motor 110 is snapped at one end of the sliding groove 103. A threaded rod 109 is snapped at one end of the stepper motor 110. A slider 108 is screwed onto the outer circumference of the threaded rod 109. The slider 108 is slidably snapped into the sliding groove 103. The telescopic rod 106 is inserted through and inserted into one side of the top of the slider 108.

[0032] The mechanical structure of the drive connecting frame 1 and the transplanter is connected by the mounting frame 104. According to the planting spacing of the seedlings, multiple seedling tubes 2 are attached to the appropriate positions within the two limiting connecting frames 102. The multiple seedling tubes 2 are attracted and positioned by the electromagnet 105. When transplanting the seedlings, the stepper motor 110 is controlled to drive the threaded rod 109 to rotate, which further drives the slider 108 and the push cylinder 101 to move along the slide groove 103 to the required position. The push cylinder 101 drives the telescopic rod 106 to stretch, which further drives the first push plate 107 to move downward, causing the seedlings and part of the soil to detach from the seedling tubes 2.

[0033] Among them, such as Figure 1 , 5As shown in Figure 6, a handle 202 is welded and fixed to the top of the outer periphery of each seedling tube 2. A vent 203 is opened through the top of the outer periphery of each seedling tube 2. An adsorption plate 204 is snapped and fixed to the top of each seedling tube 2. The adsorption plate 204 is attached to the bottom of the electromagnet 105. A scraper 209 is welded and fixed to the bottom of each bulldozer 208. The scraper 209 is attached to the inner wall of the seedling tube 2. A connecting rod 207 is welded and fixed to the top of each bulldozer 208. The connecting rod 207 is inserted through the tube. The connecting rod 207 is snapped and fixed to the bottom of the second push plate 201, and the bottom of the second push plate 201 is snapped with a return spring 205 and a limiting rod 206. The return spring 205 is sleeved on the outside of the limiting rod 206, and the bottom of the return spring 205 is snapped to the top of the seedling tube 2. The bottom of the limiting rod 206 is inserted through the top of the seedling tube 2. The limiting rod 206, the return spring 205 and the connecting rod 207 are inserted through the top between the two limiting connecting frames 102.

[0034] When taking seedlings, the seedling tube 2 is fitted onto the outside of the seedling and its bottom is inserted into the soil at an appropriate distance. Then, the seedling tube 2 is moved upward to dig out the seedling. When the seedling is briefly stored in the seedling tube 2, ventilation is provided through the ventilation hole 203 to ensure that the seedling can carry out normal respiration while stored in the seedling tube 2. When transplanting is required, the second push plate 201 is moved to move the soil pusher 208 downward to push out the soil and seedlings. At the same time, the scraper 209 scrapes off the soil attached to the inner wall of the seedling tube 2.

[0035] The specific working principle of this utility model is as follows: the mechanical structure of the drive connecting frame 1 and the transplanter is connected through the mounting frame 104. According to the planting spacing of the seedlings, multiple seedling picking tubes 2 are attached to appropriate positions within the two limiting connecting frames 102, and the multiple seedling picking tubes 2 are attracted and positioned by the electromagnet 105. When picking seedlings, the seedling picking tubes 2 are sleeved on the outside of the seedlings, and the bottom of the seedling picking tubes 2 is inserted into the soil at an appropriate distance by manual or mechanical means. Then, the seedling picking tubes 2 are moved upward to dig out the seedlings. When transplanting seedlings, the stepper motor 110 drives the threaded rod 109 to rotate, which in turn drives the slider 108 and the push cylinder 101 to move along the slide groove 103 to the required position and correspond to a seedling tube 2. The push cylinder 101 drives the telescopic rod 106 to extend, which in turn drives the first push plate 107 to move downward and push the second push plate 201, which in turn drives the soil pusher 208 to move downward and push out the soil and seedlings. At the same time, the scraper 209 scrapes off the soil attached to the inner wall of the seedling tube 2.

[0036] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A seedling-retrieving device for a transplanter, comprising a drive connecting frame (1) and a seedling-retrieving tube (2), characterized in that: The bottom sides of the drive connecting frame (1) are fixed with the limiting connecting frame (102), and the top of the drive connecting frame (1) is slidably connected with the push cylinder (101). Multiple seedling tubes (2) are inserted into the two limiting connecting frames (102), and a bulldozer (208) is slidably connected into each seedling tube (2). A second push plate (201) is provided on the top of each seedling tube (2).

2. The seedling-receiving device for a transplanter according to claim 1, characterized in that: The drive connecting frame (1) is welded and fixed to one side with a mounting bracket (104). The top of the drive connecting frame (1) is provided with a sliding groove (103). Each of the limiting connecting frames (102) is fixed with an electromagnet (105) at the bottom.

3. The seedling-taking device for a transplanter according to claim 2, characterized in that: The bottom of the push cylinder (101) is slidably engaged with a telescopic rod (106), the bottom of the telescopic rod (106) is engaged with a first push plate (107), one end of the slide groove (103) is engaged with a stepper motor (110), one end of the stepper motor (110) is engaged with a threaded rod (109), the outer circumference of the threaded rod (109) is screwed with a slider (108), the slider (108) is slidably engaged in the slide groove (103), and the telescopic rod (106) is inserted through and inserted into one side of the top of the slider (108).

4. The seedling-taking device for a transplanter according to claim 2, characterized in that: Each of the seedling tubes (2) has a handle (202) welded to the top of its outer periphery, and a ventilation hole (203) is opened through the top of its outer periphery. Each of the seedling tubes (2) has an adsorption plate (204) snapped to the top of its top, and the adsorption plate (204) is attached to the bottom of the electromagnet (105).

5. The seedling-receiving device for a transplanter according to claim 1, characterized in that: Each of the bulldozer frames (208) has a scraper (209) welded and fixed at the bottom. The scraper (209) is attached to the inner wall of the seedling tube (2). Each of the bulldozer frames (208) has a connecting rod (207) welded and fixed at the top. The connecting rod (207) is inserted through the top of the seedling tube (2). The connecting rod (207) is snapped and fixed at the bottom of the second push plate (201). The bottom of the second push plate (201) is snapped with a return spring (205) and a limiting rod (206). The return spring (205) is sleeved on the outside of the limiting rod (206). The bottom of the return spring (205) is snapped at the top of the seedling tube (2). The bottom of the limiting rod (206) is inserted through the top of the seedling tube (2). The limiting rod (206), the return spring (205), and the connecting rod (207) are inserted through the top between the two limiting connecting frames (102).