Green date harvesting and picking device

By designing a jujube harvester with gradually increasing gap between conveyor rollers, the problem of jujube size screening in existing technologies has been solved, realizing automatic screening and efficient collection of jujubes, reducing manual screening steps, and improving harvesting efficiency.

CN223613857UActive Publication Date: 2025-12-02YUANMOU COUNTY CHANGRONG AGRI DEV CO LTD
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Patent Information

Application Number
CN202422969338.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-12-02
Estimated Expiration
2034-12-03

AI Technical Summary

Technical Problem

Existing jujube harvesting devices cannot screen and collect jujubes according to their size, resulting in the need for manual sorting and increasing labor intensity.

Method used

A jujube harvester was designed. By gradually increasing the gap between the conveyor rollers, the jujubes are automatically separated into different collection boxes according to their size. The automatic screening of the jujubes is achieved by gradually increasing the gap between the conveyor rollers.

Benefits of technology

The system enables automatic screening of jujubes, reducing manual screening steps and improving harvesting efficiency and labor utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a green date harvesting and picking device, and relates to the technical field of green date harvesting and picking, the green date harvesting and picking device comprises a base, the top end of the base is fixedly provided with a mounting seat through a supporting rod, a through groove vertically penetrates through the interior of the mounting seat, and one side of the interior of the through groove is provided with a plurality of conveying rollers through rotating shafts; and the distance between every two conveying rollers is continuously increased from front to back, a driving assembly used for driving the conveying rollers to synchronously rotate is arranged on one sides of the conveying rollers, and a guide hopper is installed on one side of the top end of the installation base. Collected jujubes are guided and conveyed to the conveying ends of the conveying rollers, the conveying rollers with the gradually-increased gaps are used for conveying the jujubes, small jujubes can leak from the gaps in advance, large jujubes can move to the far position and then leak, and therefore the jujubes are conveyed to the conveying ends of the conveying rollers. In this way, the jujubes in different size ranges can fall into different collecting boxes to be collected, subsequent manual screening is not needed, and more time and labor are saved.
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Description

Technical Field

[0001] This utility model relates to the field of jujube harvesting and picking technology, specifically a jujube harvesting and picking device. Background Technology

[0002] Green jujubes, also known as fresh jujubes, are the fruit of the jujube tree. Currently, the green jujubes available on the market mainly include several types such as Henan jujubes, Xinjiang jujubes, and Shandong jujubes. Among them, Henan jujubes have become a well-known variety due to their large yield and good taste. Green jujubes are generally collected by hand during harvesting. In order to solve the problem of fatigue when carrying baskets, some harvesting devices have also been developed.

[0003] For example, the national authorized patent number "CN 217742319 U" entitled "A Jujube Harvester" states: "This utility model unfolds through the extension mechanism on the left and right sides, which can guide the jujubes on the left and right sides onto the conveyor belt device. The conveyor belt device transports the jujubes forward or backward and drops them onto the guide plate. The guide plate guides the jujubes into the basket on the base. There is no need for people to carry the baskets. The jujubes can be manually picked in a large area and sent to the collection vehicle for automatic collection, which improves the harvesting efficiency."

[0004] Because the harvested dates are placed directly on the device during manual collection, and the device indiscriminately transports the dates to the collection vehicle, the device cannot screen the dates. However, in actual sales, the dates are usually sorted and packaged according to their size. Therefore, after collection using the device, manual sorting is still required. In view of this, in-depth research was conducted to address the above issues, which led to this case. Utility Model Content

[0005] The purpose of this utility model is to provide a jujube harvester to solve the problem mentioned in the background art that it does not have the function of screening and collecting jujubes according to their size.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a jujube harvester, comprising a base, a mounting seat fixed to the top of the base by a support rod, and a through groove running vertically through the interior of the mounting seat. Multiple conveying rollers are mounted on one side of the through groove via a rotating shaft, and the distance between each pair of conveying rollers increases progressively from front to back. A drive assembly for synchronously rotating the conveying rollers is provided on one side of each conveying roller. A guide hopper is mounted on one side of the top of the mounting seat, and a guide chamber is opened on one side of the bottom of the guide hopper. The output end of the guide chamber extends to one side of the guide hopper. An inclined plate is installed between the inner walls of both sides of the guide hopper, and the inclined plate is inclined. The lower end of the inclined plate is connected to one side of the top of the guide chamber. Multiple funnels are mounted at the bottom of the mounting seat, and a corresponding number of collection boxes are provided below the funnels.

[0007] Preferably, each of the collection boxes is provided with a fixing plate at its bottom, and the bottom of the fixing plate is fixed to the top of the base. Multiple ball bearings are embedded in the top of each fixing plate.

[0008] Preferably, guide plates are fixed at both the front and rear ends of the top of the fixed plate, and one end of the guide plate is in the same vertical plane as one end of the collection box.

[0009] Preferably, a rotating plate is installed on one side of the collection box via a hinge, and L-shaped baffles are fixed at both the front and rear ends of one side of the collection box. Rotating rods are installed at both the front and rear ends of one side of the rotating plate via a rotating shaft, and one end of each rotating rod extends into the interior of the baffle.

[0010] Preferably, the bottom of the guide bin is curved and inclined, and the height of the end of the guide bin near the conveying roller is lower than the height of the other end of the guide bin.

[0011] Preferably, a support plate is fixed to the top of the mounting base, and one side of the support plate is fixed to the outer wall of the guide hopper.

[0012] Preferably, the drive assembly includes a cavity, which is located inside one side of the mounting base. A drive motor is installed on one side of the mounting base, and a drive shaft is installed at the output end of the drive motor. Multiple driven shafts are provided on one side of the drive motor, and one end of each driven shaft is connected to one side of the cavity through a rotating shaft. The other ends of the driven shafts and the drive shaft are fixed to one end of the conveying roller. Two or one sprockets are installed on the outer wall of the driven shafts and the drive shaft inside the cavity, and a chain is sleeved on the outer wall of two adjacent sprockets.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By guiding the collected dates to the conveying ends of multiple conveyor rollers, the dates are transported using conveyor rollers with gradually increasing gaps. Smaller dates will fall through the gaps earlier, while larger dates will move to a greater distance before falling. In this way, dates of different sizes will fall into different collection boxes for collection, eliminating the need for subsequent manual sorting and saving more time and effort. Attached Figure Description

[0015] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0016] Figure 2 This is a side sectional view of the collection box and fixing plate of this utility model.

[0017] Figure 3 This is a top view of the guide hopper structure of this utility model;

[0018] Figure 4 This is a top view sectional structural diagram of the mounting base of this utility model.

[0019] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 6 For the present utility model Figure 4 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Guide hopper; 2. Inclined plate; 3. Guide bin; 4. Mounting base; 5. Support plate; 6. Conveying roller; 7. Funnel; 8. Collection box; 9. Fixing plate; 10. Guide plate; 11. Rotating plate; 12. Ball bearing; 13. Cavity; 14. Through groove; 15. Rotating rod; 16. Stop bar; 17. Driven shaft; 18. Drive motor; 19. Drive shaft; 20. Sprocket; 21. Chain; 22. Base Detailed Implementation

[0022] 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.

[0023] Example: Please refer to Figure 1-6 A jujube harvester includes a base 22, with a mounting base 4 fixed to the top of the base 22 by a support rod. A through groove 14 runs vertically through the interior of the mounting base 4. Multiple conveying rollers 6 are mounted on one side of the through groove 14 via a rotating shaft. The spacing between each pair of conveying rollers 6 increases from front to back. A drive assembly for driving the conveying rollers 6 to rotate synchronously is provided on one side of the conveying rollers 6. A guide hopper 1 is mounted on one side of the top of the mounting base 4. A guide chamber 3 is opened on one side of the bottom of the guide hopper 1. The output end of the guide chamber 3 extends to one side of the guide hopper 1. An inclined plate 2 is installed between the inner walls of the two sides of the guide hopper 1. The inclined plate 2 is inclined. The lower end of the inclined plate 2 is connected to one side of the top of the guide chamber 3. Multiple funnels 7 are mounted on the bottom of the mounting base 4. A corresponding number of collection boxes 8 are provided below the funnels 7.

[0024] The bottom of the inside of the guide bin 3 is curved and inclined, and the height of the end of the guide bin 3 near the conveying roller 6 is lower than the height of the other end of the guide bin 3.

[0025] Specifically, such as Figure 1 , Figure 3 and Figure 4As shown, after the jujubes are manually picked, they are placed in the feed hopper 1. The jujubes roll down the inclined surface of the inner wall of the feed hopper 1 to the inclined plate 2, and then move up the upper surface of the inclined plate 2 to the inside of the feed bin 3. From the outlet of the feed bin 3, they move to the position where the conveying roller 6 is more compact at the top end of the mounting base 4. Subsequently, multiple conveying rollers 6 rotate at the same speed under the drive of the drive assembly to convey the jujubes. Smaller jujubes will fall through the gaps earlier, while larger jujubes will move to a farther distance before falling. In this way, jujubes of different sizes will fall into different collection boxes 8 for collection.

[0026] Each collection box 8 has a fixing plate 9 at its bottom, and the bottom of the fixing plate 9 is fixed to the top of the base 22. Multiple balls 12 are embedded in the top of the fixing plate 9.

[0027] Guide plates 10 are fixed at both the front and rear ends of the top of the fixed plate 9, and one end of the guide plate 10 is in the same vertical plane as one end of the collection box 8.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, the guide plate 10 can guide and support the collection box 8, and the ball bearing 12 can reduce the friction between the collection box 8 and the fixed plate 9. In this way, after enough green dates are collected inside the collection box 8, it can be pulled out and replaced.

[0029] A rotating plate 11 is installed on one side of the collection box 8 via a hinge. L-shaped baffles 16 are fixed at both the front and rear ends of one side of the collection box 8. Rotating rods 15 are installed at both the front and rear ends of one side of the rotating plate 11 via a rotating shaft. One end of the rotating rods 15 extends into the interior of the baffles 16.

[0030] Specifically, such as Figure 2 and Figure 5 As shown, normally the stop bar 16 blocks the rotating rod 15, thereby restricting the rotation of the rotating plate 11, so that the rotating plate 11 and the collection box 8 form a whole to hold the green dates. When it is necessary to take out the green dates inside the collection box 8, the rotating rod 15 can be rotated to move away from the stop bar 16. At this time, the rotating plate 11 can be rotated to open it, making it convenient to take out the green dates later.

[0031] The top of the mounting base 4 is fixed with a support plate 5, and one side of the support plate 5 is fixed to the outer wall of the guide hopper 1.

[0032] Specifically, such as Figure 1 As shown, the support plate 5 can support the jujubes and prevent them from falling off the device during rolling or conveying.

[0033] The drive assembly includes a cavity 13, which is located inside one side of the mounting base 4. A drive motor 18 is installed inside one side of the mounting base 4, and a drive shaft 19 is installed at the output end of the drive motor 18. A plurality of driven shafts 17 are provided on one side of the drive motor 18, and one end of each driven shaft 17 is connected to one side of the cavity 13 via a rotating shaft. The other ends of the driven shafts 17 and the drive shafts 19 are fixed to one end of the conveying roller 6. Two or one sprockets 20 are installed on the outer wall of the driven shafts 17 and the drive shafts 19 inside the cavity 13, and a chain 21 is sleeved on the outer wall of two adjacent sprockets 20.

[0034] Specifically, such as Figure 1 , Figure 4 and Figure 6 As shown, starting the drive motor 18 can drive the drive shaft 19 to rotate. The drive shaft 19 drives the adjacent driven shaft 17 to rotate through the sprocket 20 and chain 21. Similarly, each driven shaft 17 can also drive the adjacent driven shaft 17 to rotate. In this way, multiple conveying rollers 6 can rotate at the same speed and in the same direction to carry out conveying operations.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A jujube harvester, comprising a base (22), characterized in that: The top of the base (22) is fixed with a mounting seat (4) by a support rod, and a through groove (14) runs vertically through the inside of the mounting seat (4). Multiple conveying rollers (6) are installed on one side of the inside of the through groove (14) by a rotating shaft, and the distance between each pair of conveying rollers (6) increases from front to back. A drive assembly for driving the conveying rollers (6) to rotate synchronously is provided on one side of the conveying rollers (6). A guide hopper (1) is installed on one side of the top of the mounting seat (4), and a guide chamber (3) is opened on one side of the bottom of the guide hopper (1). The output end of the guide chamber (3) extends to one side of the guide hopper (1). An inclined plate (2) is installed between the inner walls of the two sides of the guide hopper (1), and the inclined plate (2) is inclined. The lower end of the inclined plate (2) is connected to one side of the top of the guide chamber (3). Multiple funnels (7) are installed at the bottom of the mounting seat (4), and a corresponding number of collection boxes (8) are provided below the funnels (7).

2. The jujube harvester according to claim 1, characterized in that: Each collection box (8) has a fixing plate (9) at its bottom end, and the bottom end of the fixing plate (9) is fixed to the top end of the base (22). Each fixing plate (9) has multiple balls (12) embedded in its top end.

3. The jujube harvester according to claim 2, characterized in that: The top and bottom ends of the fixed plate (9) are both fixed with guide plates (10), and one end of the guide plate (10) is in the same vertical plane as one end of the collection box (8).

4. The jujube harvester according to claim 1, characterized in that: A rotating plate (11) is installed on one side of the collection box (8) via a hinge. Both the front and rear ends of one side of the collection box (8) are fixed with L-shaped baffles (16). Both the front and rear ends of one side of the rotating plate (11) are equipped with rotating rods (15) via a rotating shaft. One end of the rotating rod (15) extends into the interior of the baffle (16).

5. A jujube harvester according to claim 1, characterized in that: The bottom of the guide bin (3) is curved and inclined, and the height of the guide bin (3) near the conveying roller (6) is lower than the height of the other end of the guide bin (3).

6. A jujube harvester according to claim 1, characterized in that: The top of the mounting base (4) is fixed with a support plate (5), and one side of the support plate (5) is fixed to the outer wall of the guide hopper (1).

7. A jujube harvester according to claim 1, characterized in that: The drive assembly includes a cavity (13), which is located inside one side of the mounting base (4). A drive motor (18) is installed on one side inside the mounting base (4), and a drive shaft (19) is installed at the output end of the drive motor (18). A plurality of driven shafts (17) are provided on one side of the drive motor (18), and one end of each driven shaft (17) is connected to one side inside the cavity (13) via a rotating shaft. The other ends of the driven shafts (17) and the drive shafts (19) are fixed to one end of the conveying roller (6). Two or one sprockets (20) are installed on the outer wall of the driven shafts (17) and the drive shafts (19) inside the cavity (13), and a chain (21) is sleeved on the outer wall of two adjacent sprockets (20).

Citation Information

Patent Citations

  • Green date harvesting and picking device

    CN217742319U