Folding grain unloading barrel with protective cover for grain conveying machine
By designing a protective cover on the unloading hopper of the grain conveyor, a follow-up closure is achieved, which solves the problem of the unloading hopper being easily corroded in the folded state and ensures stable operation.
Patent Information
- Application Number
- CN202520972638.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-17
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-05-17
AI Technical Summary
When the unloading canister of an existing grain conveyor is in the folded state, the top is open and easily corroded by rainwater or dirt, leading to rust and jamming.
A folding unloading cylinder for a grain conveyor with a protective cover was designed. The cover is connected to the unloading cylinder through a hinge point, enabling it to close and unfold automatically, thus protecting the folded part of the unloading cylinder.
It effectively prevents rainwater and dirt from entering, avoids rust and jamming, has a simple structure, and operates stably.
Smart Images

Figure CN223865938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain conveying machinery technology, and in particular to a folding grain unloading cylinder for a grain conveying machine with a protective cover. Background Technology
[0002] A grain transporter is a special vehicle used to transfer agricultural materials such as fertilizers, grains, or seeds from fields or warehouses to other places. The grain transporter discharges the material in the carriage to other places through the unloading hopper containing a screw conveyor mechanism. When the unloading hopper is in the folded transport state, the top of the unloading hopper is open. At this time, rainwater or other dirt can easily fall into the unloading hopper, causing rust, jamming, and other malfunctions. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a folding unloading canister for a grain conveyor with a protective cover. The cover can be automatically closed and opened as the unloading canister is folded and unfolded, ensuring that the folded part of the unloading canister is always protected.
[0004] The technical solution of this utility model is implemented as follows: A folding unloading cylinder for a grain conveyor with a protective cover includes a connecting seat, a lower unloading cylinder, an upper unloading cylinder, a support rod, a protective cover, an upper push-pull plate, a lower push-pull plate, and a hydraulic cylinder. The lower unloading cylinder is fixed on the connecting seat. The lower unloading cylinder and the upper unloading cylinder are hinged at the eighth hinge point. The lower end of the hydraulic cylinder is hinged to the lower unloading cylinder at the fourth hinge point. The upper end of the hydraulic cylinder is hinged to the upper push-pull plate and the lower push-pull plate at the second hinge point. The lower push-pull plate is hinged to the lower unloading cylinder at the third hinge point. The upper push-pull plate is hinged to the upper unloading cylinder at the first hinge point. The upper end of the protective cover is hinged to the upper unloading cylinder at the seventh hinge point. The lower end of the protective cover is hinged to the support rod at the fifth hinge point. The support rod is hinged to the lower unloading cylinder at the sixth hinge point.
[0005] The beneficial effects of this utility model are: 1. By setting a protective cover at the folding connection of the unloading can, this utility model ensures that the folding part of the unloading can is always protected, preventing rainwater and other dirt from entering; 2. The protective cover and the unloading can are hinged together by a linkage mechanism, and can be closed and unfolded in sync with the folding and unfolding of the unloading can, without the need to provide other power, with a simple structure and stable operation. Attached Figure Description
[0006] Figure 1 is a schematic diagram of the structure of this utility model.
[0007] Figure 2 is a schematic diagram of the closed state structure of the unloading hopper of this utility model.
[0008] Figure 3 is a schematic diagram of the structure of the unloading hopper of this utility model in the unfolded state on the grain conveyor.
[0009] In the diagram: 1. Grain conveyor housing; 2. Wheels; 3. Traction rod; 4. Connecting seat; 5. Lower unloading grain hopper; 6. Upper unloading grain hopper; 7. Support rod; 8. Protective cover; 9. Upper push-pull plate; 10. Lower push-pull plate; 11. Hydraulic cylinder; 91. First hinge point; 92. Second hinge point; 93. Third hinge point; 94. Fourth hinge point; 95. Fifth hinge point; 96. Sixth hinge point; 97. Seventh hinge point; 98. Eighth hinge point. Detailed Implementation
[0010] Referring to Figures 1 to 3, the technical solution of this utility model is implemented as follows: A folding unloading cylinder for a grain conveyor with a protective cover includes a connecting seat 4, a lower unloading cylinder 5, an upper unloading cylinder 6, a support rod 7, a protective cover 8, an upper push-pull plate 9, a lower push-pull plate 10, and a hydraulic cylinder 11. The lower unloading cylinder 5 is fixed on the connecting seat 4. The lower unloading cylinder 5 and the upper unloading cylinder 6 are hinged at the eighth hinge point 98. The lower end of the hydraulic cylinder 11 is hinged to the lower unloading cylinder 5 at the fourth hinge point 94. The upper end of the hydraulic cylinder 11 is hinged to the upper push-pull plate 9. The lower push-pull plate 10 is hinged to the lower unloading grain cylinder 5 at the second hinge point 92. The lower push-pull plate 10 is hinged to the lower unloading grain cylinder 5 at the third hinge point 93. The upper push-pull plate 9 is hinged to the upper unloading grain cylinder 6 at the first hinge point 91. The upper end of the protective cover 8 is hinged to the upper unloading grain cylinder 6 at the seventh hinge point 97. The lower end of the protective cover 8 is hinged to the support rod 7 at the fifth hinge point 95. The support rod 7 is hinged to the lower unloading grain cylinder 5 at the sixth hinge point 96. In use, this utility model is fixed to the grain conveyor box body through the connecting seat.
Claims
1. A folding unloading canister for a grain conveyor with a protective cover, characterized in that: It includes a connecting seat, a lower unloading grain cylinder, an upper unloading grain cylinder, a support rod, a protective cover, an upper push-pull plate, a lower push-pull plate, and a hydraulic cylinder. The lower unloading grain cylinder is fixed on the connecting seat. The lower unloading grain cylinder and the upper unloading grain cylinder are hinged at the eighth hinge point. The lower end of the hydraulic cylinder is hinged to the lower unloading grain cylinder at the fourth hinge point. The upper end of the hydraulic cylinder is hinged to the upper push-pull plate and the lower push-pull plate at the second hinge point. The lower push-pull plate is hinged to the lower unloading grain cylinder at the third hinge point. The upper push-pull plate is hinged to the upper unloading grain cylinder at the first hinge point. The upper end of the protective cover is hinged to the upper unloading grain cylinder at the seventh hinge point. The lower end of the protective cover is hinged to the support rod at the fifth hinge point. The support rod is hinged to the lower unloading grain cylinder at the sixth hinge point.