Agricultural trailer box
By designing agricultural trailer boxes with grid panels and rubber pads, the problems of water accumulation and slippage during rainy weather transportation have been solved, enabling safe and efficient loading and unloading operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA JINBAO AGRICULTURAL MACHINERY CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-05-19
AI Technical Summary
Open-type agricultural trailers are prone to water accumulation during rainy weather, leading to increased vehicle load and crop mold. In addition, solid baffles pose a risk of slipping when used as loading and unloading ramps.
A rear baffle is designed, consisting of a first rotating baffle and a second rotating baffle. The baffle surface is covered with a grid plate with raised grid ridges, forming a continuous ramp when unfolded. The grid plate surface is coated with a hydrophobic and anti-slip layer. The raised ridges disrupt the continuity of the water film, increasing friction. At the same time, rubber pads are set to increase the coefficient of friction and prevent slipping.
It effectively prevents water accumulation in the cargo compartment, improves loading and unloading safety, reduces the risk of slipping, and ensures transportation safety and efficiency.
Smart Images
Figure CN224256772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural transportation equipment technology, specifically to an agricultural trailer box. Background Technology
[0002] Open-top agricultural trailers pose a water accumulation problem during rainy weather operations. Because their bottoms and baffles are mostly enclosed solid panels, rainwater easily accumulates inside the cargo compartment, forming puddles. This significantly increases the vehicle's load and can cause crops, feed, and other goods to become soaked and moldy. Furthermore, when the solid baffles are unfolded and used as loading / unloading ramps, rainwater accumulates on the slope, forming a flowing film that poses a risk of slipping and falling for personnel during loading and unloading. Utility Model Content
[0003] The purpose of this utility model is to provide an agricultural trailer box to solve the problems of water accumulation in the cargo box of open agricultural trailer boxes during rainy weather transportation and the slipping of personnel when solid baffles are unfolded and used as loading and unloading ramps.
[0004] To achieve the above objectives, an agricultural trailer box is provided, comprising a rear tailgate and a box body. The rear tailgate includes a first rotating baffle and a second rotating baffle. The upper part of the first rotating baffle is rotatably connected to the upper part of the second rotating baffle, and the bottom of the second rotating baffle is rotatably connected to the rear of the box body.
[0005] Both the first and second rotating baffles are fixedly connected with mesh plates, and the mesh edges of the mesh plates are raised.
[0006] When the first and second rotating baffles are stacked, they fit against the rear of the box to form a guardrail.
[0007] When the first and second rotating baffles are deployed, they form a loading and unloading ramp.
[0008] In the above technical solution, when the first and second rotating baffles are stacked, they form a vertical protective barrier to prevent goods from scattering. When unfolded, they transform into a continuous ramp surface covered with raised ridge grids, forming a physical anti-slip mechanism. The raised grids disrupt the continuity of the water film, forcing water to flow away along the ridges in rainy conditions. They also increase the friction between the workers' shoes and the ramp, reducing the risk of slipping due to water flow. At the same time, the mesh structure allows rainwater to penetrate rather than stagnate, avoiding the problem of water accumulation in the cargo compartment.
[0009] Based on this, the first and second rotating baffles are higher than the side panels of the box, and both are composed of a frame and multiple reinforcing ribs;
[0010] The lateral reinforcing ribs of the first rotating baffle are arranged biased towards the bottom of the baffle to receive and transmit the lateral load generated by the materials in the cargo compartment.
[0011] In this technical solution, the first rotating baffle serves as the main load-bearing component in the vertically closed state. Both the first and second rotating baffles are higher than the side panels of the container. When the container is under load, the lateral pressure generated by the weight and bumps of the cargo is mainly concentrated in the lower area of the baffle. The reinforcing ribs are positioned towards the bottom of the baffle to prevent the mesh plate from warping due to localized pressure. Simultaneously, this layout avoids redundant reinforcing structures on the upper part of the baffle, ensuring smooth drainage of the fully perforated mesh plate while reducing the overall weight of the baffle, achieving a balance between structural strength and lightweight design.
[0012] In another technical solution, a rubber pad is fixedly connected to the rear bottom side of the second rotating baffle.
[0013] In this technical solution, when the second rotating baffle unfolds to form a ramp, its end directly contacts the working surface (such as soil, gravel, or cement). At this time, the rubber pad acts as an intermediate buffer layer between the rigid metal structure and the ground. Through the elastic deformation of the material, it increases the coefficient of friction, preventing the metal ramp from sliding and shifting on wet muddy ground, while also preventing the baffle edge from colliding with the ground and curling. When the baffle is in the retracted state, the rubber pad becomes a buffer interface when the first and second rotating baffles are stacked, avoiding direct collision between metal parts that could cause paint wear or abnormal noise.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] The agricultural trailer features a mesh design in the rear tailgate, with inward-curved edges forming a drainage channel. The mesh surface is coated with a hydrophobic, anti-slip layer, and the raised mesh edges effectively guide rainwater out, preventing water accumulation inside the cargo compartment. Furthermore, when the tailgate is unfolded to serve as a loading / unloading ramp, these design features increase surface friction, effectively preventing slips and falls caused by rainwater buildup during loading and unloading, even in rainy weather, thus improving the safety of loading and unloading operations. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the rear baffle of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the rear baffle of this utility model after it is unfolded.
[0019] The meanings of the labels in the diagram are as follows:
[0020] 1. Rear baffle; 11. First rotating baffle; 12. Second rotating baffle; 13. Mesh plate; 14. Reinforcing rib; 15. Rubber pad; 2. Housing; 21. Sliding pin lock. Detailed Implementation
[0021] 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.
[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0024] Please see Figure 1-2 As shown, the purpose of this embodiment is to provide an agricultural trailer box, including a rear baffle 1 and a box body 2. The rear baffle 1 is composed of a first rotating baffle 11 and a second rotating baffle 12, which are rotatably connected by a hinge shaft at the top. At the same time, the bottom of the second rotating baffle 12 is movably connected to the rear of the box body 2 by another set of hinges. When the first rotating baffle 11 and the second rotating baffle 12 are stacked vertically, they form a closed guardrail to ensure transportation safety. When unfolded horizontally, they extend into a continuous ramp to improve loading and unloading efficiency.
[0025] like Figure 1As shown, in the transport state, the first rotating baffle 11 and the second rotating baffle 12 are attached to the rear of the box body 2 and locked in place by the sliding pin locks 21 on both sides of the box body 2. At this time, the double-layer baffles form a vertical barrier higher than the side panels of the box body 2, preventing the goods from scattering during bumpy roads. The mesh plate 13 covering the surface of the baffles serves as a drainage structure. Its mesh edges are formed by an inward-curling edge process to create a guide channel, allowing rainwater to quickly permeate and drain along the channel, avoiding the problem of water accumulation in the cargo compartment caused by solid baffles, thereby preventing abnormal increases in vehicle load and preventing rainwater from soaking crops and causing mold. The first rotating baffle 11 adopts a combination structure of a frame and multiple reinforcing ribs 14, with the transverse reinforcing ribs 14 distributed more towards the bottom area of the baffle. This design can specifically bear the lateral impact force generated by the bumps of the materials in the cargo compartment, transferring the load to the main structure of the box body 2 through the frame, enhancing the lower part's resistance to deformation, while retaining a large area of through mesh in the upper part to ensure a balance between smooth drainage and lightweight structure.
[0026] like Figure 3 As shown, during loading and unloading operations, the operator slides the unlocking pin lock 21 with one hand, causing the first rotating baffle 11 to flip outward around the top hinge axis, simultaneously driving the second rotating baffle 12 to unfold around the bottom hinge. When both are fully laid flat, a continuous ramp extending from the rear of the box 2 to the ground is formed. At this time, the raised ridges of the grid plate 13 cut the water flow, forming discrete water droplets, which disrupt the continuous water film on the ramp surface. The hydrophobic anti-slip layer coated on the surface (such as polyurethane material, which can be selected according to cost) further reduces the adhesion of water molecules and increases the wet friction coefficient of the ramp. At the same time, the guide channel structure of the grid plate 13 guides rainwater to drain away along a preset path, keeping the ramp surface free of large areas of water droplets. The rubber pad 15 at the end of the second rotating baffle 12 directly contacts the ground. Its elastic deformation characteristics absorb the impact force between the equipment and the ground, preventing the metal edges from curling and deforming. On the other hand, by increasing frictional resistance, it effectively suppresses the risk of the ramp slipping on muddy ground, providing stable support for loading and unloading operations. Meanwhile, when the baffle is in its retracted state, the rubber pad 15 also serves as a buffer interface when the first rotating baffle 11 and the second rotating baffle 12 are stacked, preventing direct collision of metal parts that could cause paint wear or abnormal noise.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An agricultural trailer box, comprising a rear baffle (1) and a box body (2), characterized in that: The rear baffle (1) includes a first rotating baffle (11) and a second rotating baffle (12). The upper part of the first rotating baffle (11) is rotatably connected to the upper part of the second rotating baffle (12), and the bottom of the second rotating baffle (12) is rotatably connected to the rear of the box body (2). Both the first rotating baffle (11) and the second rotating baffle (12) are fixedly connected with a grid plate (13), and the grid edges of the grid plate (13) are raised. When the first rotating baffle (11) and the second rotating baffle (12) are stacked, they fit against the tail of the box body (2) to form a guardrail; When the first rotating baffle (11) and the second rotating baffle (12) are deployed, they form a loading and unloading ramp.
2. The agricultural trailer box according to claim 1, characterized in that: The first rotating baffle (11) and the second rotating baffle (12) are higher than the side plate of the box body (2), and both are composed of a frame and multiple reinforcing ribs (14).
3. The agricultural trailer box according to claim 2, characterized in that: The transverse reinforcing ribs (14) of the first rotating baffle (11) are arranged biased towards the bottom of the baffle to receive and transmit the lateral load generated by the material in the cargo compartment.
4. The agricultural trailer box according to claim 1, characterized in that: A rubber pad (15) is fixedly connected to the rear bottom of the second rotating baffle (12).
5. The agricultural trailer box according to claim 1, characterized in that: The box body (2) is provided with sliding pin locks (21) on both sides of the rear end. The sliding pin locks (21) are used to fix the first rotating baffle (11) and the second rotating baffle (12).
6. The agricultural trailer box according to claim 1, characterized in that: The mesh edge of the grid plate (13) is provided with an inward rolled edge to form a flow guiding structure.
7. The agricultural trailer box according to claim 1, characterized in that: The surface of the grid plate (13) is coated with a hydrophobic and anti-slip layer.