Connecting rod mechanism suitable for fruit collecting umbrella
By using a linkage mechanism instead of gears, the opening and closing structure of the fruit collection umbrella is simplified, solving the problems of complex structure and high cost in the existing technology, and achieving the effect of fruit tree coverage and cost reduction.
Patent Information
- Application Number
- CN202520405715.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-10
AI Technical Summary
The existing fruit collection umbrella mechanism has a complex opening and closing structure, with gears occupying the center, making it impossible to cover the fruit trees, and it is also costly to manufacture.
A linkage mechanism is used instead of gears. The lower and upper semicircular jaws are connected by a linkage, and the opening and closing are achieved by an electric push rod, which simplifies the structure and avoids center occupation.
It features a simple and easy-to-use opening and closing structure that can cover fruit trees and reduce production costs.
Smart Images

Figure CN223829960U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of collection machinery technology, specifically a linkage mechanism suitable for fruit collection umbrellas. Background Technology
[0002] Many fruit farmers have cultivated a large number of high-quality fruits for people in modern big cities through their simple labor. However, in many places, people still use primitive manual harvesting methods, while modern large-scale harvesting machines are too expensive. People have to give up the high-efficiency method of mechanical harvesting while considering their own economic interests.
[0003] The high price of existing equipment makes it prohibitive for most fruit farmers, and the equipment is also prone to damage. Although machine harvesting is efficient, the damage rate of fruit is also very high, especially for softer fruits. Therefore, while considering their economic interests, people have to give up the high-efficiency method of mechanical harvesting, resulting in most fruit farmers still using the inefficient method of manual harvesting.
[0004] For example, a mulberry harvesting machine with patent document number CN107750641B includes a collecting device, a frame, a power and transmission device, and a traveling device. By rotating a rocker arm clockwise or counterclockwise, the transmission system controls the meshing between the gears and the arc-shaped rack, opening or closing the collecting umbrella to wrap around the mulberry tree, forming a surrounding surface of 4-5 square meters below the tree. Shaking the mulberry tree causes the fruit to fall into the collecting umbrella, which collects the fruit, which then falls into a hopper through a collecting pipe. Alternatively, a motor can drive the main shaft to rotate, opening or closing the collecting umbrella, and the motor can also drive the traveling device to move the machine in the field. This invention has a reasonable structure, is easy to manufacture, and allows for adjustment of the motor speed to control the device's travel speed when using a motor as the power source. Furthermore, the working efficiency of this device is more than 10 times that of manual harvesting, and the manufacturing cost is low, making it suitable for widespread promotion.
[0005] However, the collecting umbrella mechanism in this system has the following drawbacks: First, the opening and closing mechanism of the collecting umbrella is relatively complex, requiring two sets of gears to achieve opening and closing, making installation cumbersome; second, the center of the collecting umbrella is occupied by gears, preventing it from covering the fruit trees; and third, the manufacturing cost of gears and tooth grooves is high. Summary of the Invention
[0006] The technical problem to be solved by this utility model is to provide a linkage mechanism suitable for fruit collection umbrellas, addressing the shortcomings of the existing technology.
[0007] The technical solution of this utility model is: a linkage mechanism suitable for fruit collection umbrellas, including a lower semicircular jaw 9, an upper semicircular jaw 11, and umbrella ribs 8 evenly arranged on the jaws. The umbrella ribs 8 are covered with umbrella cloth 7. The feature is that the lower semicircular jaw 9 and the upper semicircular jaw 11 both rotate around the pivot 12 and are coupled to the connecting plate 6 through the connecting rod 14. The connecting plate 6 is driven to move left and right by the opening and closing electric push rod 5, so that the connecting plate 6 drives the connecting rod 14 to realize the opening and closing of the lower semicircular jaw 9 and the upper semicircular jaw 11.
[0008] The upper semicircular jaw 11 is located above the lower semicircular jaw 9. The cross-section of the lower semicircular jaw 9 is "Z" shaped and is on the same plane as the top surface of the upper semicircular jaw 11. That is, the surface of the lower semicircular jaw 9 where the umbrella rib 8 is installed is on the same horizontal plane as the surface of the upper semicircular jaw 11 where the umbrella rib 8 is installed.
[0009] The lower semicircular jaw 9 and the upper semicircular jaw 11 are both located on the support plate 13 at the top of the telescopic arm 4. The telescopic arm 4 is located inside the cantilever 1. The telescopic arm 4 slides left and right inside the cantilever 1 when the telescopic arm is driven by the telescopic electric push rod 2 above the cantilever 1.
[0010] One side of the connecting rod 14 is hinged to the connecting rod connecting plate 6 via a connecting pin 15, and the other side is hinged to the upper semi-circular jaw 11 and the lower semi-circular jaw 9 via a short pin 16 and a long pin 10.
[0011] Compared with the prior art, the advantages of this utility model are: first, the use of a linkage mechanism instead of gears simplifies the opening and closing structure; second, the center of the opening and closing jaws is not occupied by gears, allowing it to cover the trunk of the fruit tree; and third, the materials can be selected from pipes and plates, which can be simply processed and used, saving production and manufacturing costs. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 for Figure 1 The right view;
[0014] Figure 3 for Figure 1 Top view;
[0015] Figure 4 for Figure 3 A schematic diagram of the structure in the open state.
[0016] In the diagram: 1. Cantilever; 2. Electric push rod; 3. Connecting plate; 4. Telescopic arm; 5. Opening and closing electric push rod; 6. Linkage connecting plate; 7. Umbrella fabric; 8. Umbrella rib; 9. Lower semi-circular jaw; 10. Long pin; 11. Upper semi-circular jaw; 12. Rotating shaft; 13. Support plate; 14. Connecting rod; 15. Connecting pin; 16. Short pin. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings.
[0018] This utility model is a linkage mechanism suitable for fruit collection umbrellas, including a lower semi-circular jaw 9 and an upper semi-circular jaw 11. Both the lower semi-circular jaw 9 and the upper semi-circular jaw 11 rotate around the pivot 12 and are both located on the support plate 13 at the top of the telescopic arm 4. Umbrella ribs 8 are evenly arranged on the upper surface of both the lower semi-circular jaw 9 and the upper semi-circular jaw 11, and the outer side of the umbrella ribs 8 is covered with umbrella cloth 7.
[0019] The lower semicircular jaw 9 and the upper semicircular jaw 11 are hinged to the connecting rod 14 via long pin 10 and short pin 16, respectively. The other side of the connecting rod 14 is hinged to the connecting rod connecting plate 6 via connecting pin 15. An opening and closing electric push rod 5 is provided above the telescopic arm 4. The output end of the opening and closing electric push rod 5 is fixed to the connecting rod connecting plate 6 by bolts. The extension and retraction of the opening and closing electric push rod 5 drives the connecting rod connecting plate 6 to move left and right, so that the connecting plate 6 drives the connecting rod 14 to realize the opening and closing of the lower semicircular jaw 9 and the upper semicircular jaw 11 with the rotating shaft 12 as the center.
[0020] Meanwhile, the upper semicircular jaw 11 is located above the lower semicircular jaw 9. The cross-section of the lower semicircular jaw 9 is "Z" shaped and is on the same plane as the top surface of the upper semicircular jaw 11. That is, the surface of the lower semicircular jaw 9 where the umbrella rib 8 is installed is on the same horizontal plane as the surface of the upper semicircular jaw 11 where the umbrella rib 8 is installed, ensuring that the umbrella rib 8 is at the same height and improving aesthetics.
[0021] To improve the applicability, the telescopic arm 4 is located inside the cantilever 1. An electric push rod 2 is located above the cantilever 1, and a connecting plate 3 is located above the telescopic arm 4. The output end of the electric push rod 2 is fixedly connected to the connecting plate 3. The extension and retraction of the electric push rod 2 drives the telescopic arm 4 to slide left and right inside the cantilever 1, thereby increasing the stroke.
Claims
1. A linkage mechanism suitable for a fruit collection umbrella, comprising a lower semi-circular jaw (9), an upper semi-circular jaw (11), and umbrella ribs (8) evenly distributed on the jaws, the umbrella ribs (8) being covered with an umbrella cloth (7), characterized in that: The lower semicircular jaw (9) and the upper semicircular jaw (11) rotate around the pivot (12) and are coupled to the connecting rod connecting plate (6) through the connecting rod (14). The connecting rod connecting plate (6) is driven to move left and right by the opening and closing electric push rod (5), so that the connecting plate (6) drives the connecting rod (14) to realize the opening and closing of the lower semicircular jaw (9) and the upper semicircular jaw (11).
2. The linkage mechanism for a fruit collection umbrella according to claim 1, characterized in that: The upper semicircular jaw (11) is located above the lower semicircular jaw (9). The cross-section of the lower semicircular jaw (9) is "Z" shaped and is on the same plane as the top surface of the upper semicircular jaw (11). That is, the surface of the lower semicircular jaw (9) where the umbrella rib (8) is installed is on the same horizontal plane as the surface of the upper semicircular jaw (11) where the umbrella rib (8) is installed.
3. The linkage mechanism for a fruit collection umbrella according to claim 1, characterized in that: The lower semicircular jaw (9) and the upper semicircular jaw (11) are both located on the support plate (13) at the top of the telescopic arm (4). The telescopic arm (4) is located inside the cantilever (1). The telescopic arm (4) is driven by the telescopic extension of the electric push rod (2) above the cantilever (1) to slide left and right inside the cantilever (1).
4. The linkage mechanism for a fruit collection umbrella according to claim 1, characterized in that: The connecting rod (14) is hinged to the connecting rod connecting plate (6) on one side by a connecting pin (15), and to the upper semi-circular jaw (11) and the lower semi-circular jaw (9) on the other side by a short pin (16) and a long pin (10).
Citation Information
Patent Citations
A fruit mulberry picking machine
CN107750641B