Self-unloading semi-trailer box with automatic waterproof function

Abstract

The utility model relates to the technical field of self -discharging semitrailer box, especially a self -discharging semitrailer box with automatic waterproof function, including the car box, the car box one end fixedly connected with awning, the lower surface equal interval fixedly connected with a plurality of U type frame of awning, a plurality of U type frame are removed through the moving mechanism, the awning is connected with a plurality of connecting pipes, a plurality of connecting pipes upper end fixedly connected with filter screen, the lower surface of a plurality of filter screens all is provided with waterproof air -permeable membrane. The utility model avoids the generation of internal condensate, prevents the mildew situation when transporting grain.

Description

Technical Field

[0001] This utility model relates to the technical field of self-unloading semi-trailer boxes, and in particular to a self-unloading semi-trailer box with automatic waterproof function. Background Technology

[0002] A dump semi-trailer box is a cargo box section of a semi-trailer specifically designed for transporting bulk materials such as sand, gravel, coal, ore, grain, and construction waste. Its core feature is a hydraulic lifting system that automatically tilts the cargo box, enabling rapid and efficient unloading of goods without manual labor or additional machinery.

[0003] To prevent cargo from getting wet and damaged by rain during transportation, dump semi-trailers generally use a special openable waterproof canopy design. This canopy is usually made of high-strength waterproof canvas or PVC-coated material and covers the open top of the cargo box. When the weather changes abruptly or the truck enters a rainy area, the driver can easily unfold the canopy from its rolled-up position to tightly cover the entire top of the cargo box. Its core function is to form a physical barrier, effectively preventing rainwater from directly contacting the cargo, thus ensuring the dryness and quality safety of moisture-sensitive goods such as sand, building materials, and industrial raw materials. It is a key protective measure against changeable weather.

[0004] However, during grain transport, in areas with significant diurnal temperature variations (such as plateaus, deserts, or temperate continental climates), the high daytime temperatures cause moisture and residual heat from the grain to accumulate under the sealed awning. At night, the temperature drops sharply, and the temperature of the awning's inner walls rapidly falls below the dew point, causing a large amount of moisture from the warm, humid air inside to condense into water droplets that adhere to the inner surface of the awning. These condensed water droplets continuously accumulate and drip, re-wetting the grain below and leading to mold growth. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies that easily lead to mold growth in grains, and to propose a self-unloading semi-trailer box with automatic waterproofing function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: Design a self-unloading semi-trailer box with automatic waterproof function, including a box, a rain canopy fixedly connected to one end of the box, multiple U-shaped frames fixedly connected at equal intervals on the lower surface of the rain canopy, the multiple U-shaped frames moving through a moving mechanism, multiple connecting pipes connected to the rain canopy, filters fixedly connected to the upper ends of the multiple connecting pipes, and a waterproof and breathable membrane provided on the lower surface of the multiple filters.

[0007] Preferably, the moving mechanism includes a moving sleeve, with the moving sleeve fixedly connected to both ends of the plurality of U-shaped frames, and connecting rods fixedly connected to both sides of the vehicle body. The moving sleeve is sleeved on the connecting rod, and the moving sleeve at the end is driven by a driving mechanism.

[0008] Preferably, the drive mechanism includes a second pulley, a rotating shaft is fixedly connected to the second pulley, the rotating shaft is rotatably connected to the outer wall of the vehicle body through a bearing, a connecting shaft is rotatably connected to the vehicle body through a bearing, a first pulley is fixedly connected to the connecting shaft, a belt is sleeved between the first pulley and the second pulley, and the belt is fixedly connected to the movable sleeve through a connecting part.

[0009] Preferably, a sealed box is fixedly connected to the outer wall of the vehicle body, and a motor is fixedly connected inside the sealed box. The motor is drivenly connected to the connecting shaft.

[0010] Preferably, the connecting shaft and the sealing box are rotatably connected by a sealing bearing.

[0011] The present invention proposes a self-unloading semi-trailer box with automatic waterproof function. The beneficial effects are as follows: when the awning is covered on the grain, the water vapor inside the box will float out through the waterproof and breathable membrane, while rainwater cannot enter through the waterproof and breathable membrane. This not only provides waterproofing but also avoids the formation of internal condensation droplets, preventing mold growth during grain transportation. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of a self-unloading semi-trailer box with automatic waterproof function proposed in this utility model; Figure 2 This is a structural schematic diagram of the rain canopy section of a self-unloading semi-trailer with automatic waterproofing function proposed in this utility model. Figure 3 This is a structural schematic diagram of a self-unloading semi-trailer box connecting pipe with automatic waterproof function proposed in this utility model. Figure 4 This utility model proposes a self-unloading semi-trailer box with automatic waterproof function. Figure 1 Enlarged view of section A; Figure 5 This utility model proposes a self-unloading semi-trailer box with automatic waterproof function. Figure 2 Enlarged view of section B.

[0013] In the diagram: 1. Canopy; 2. Connecting pipe; 3. Cargo box; 4. Sealed box; 5. Connecting rod; 6. U-shaped frame; 7. Filter screen; 8. Moving sleeve; 9. Belt; 10. First pulley; 11. Shaft; 12. Connecting part; 13. Second pulley; 14. Connecting shaft; 15. Waterproof and breathable membrane; 16. Motor. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Example 1: Refer to Figure 1-3 A self-unloading semi-trailer with automatic waterproof function includes a trailer body 3. A rain canopy 1 is fixedly connected to one end of the trailer body 3. Multiple U-shaped frames 6 are fixedly connected at equal intervals on the lower surface of the rain canopy 1. The multiple U-shaped frames 6 are moved by a moving mechanism. Multiple connecting pipes 2 are connected to the rain canopy 1. Filter screens 7 are fixedly connected to the upper ends of the multiple connecting pipes 2. The filter screens 7 protect the waterproof and breathable membrane 15 to prevent damage to the waterproof and breathable membrane 15 caused by particulate matter. The lower surface of each of the multiple filter screens 7 is provided with a waterproof and breathable membrane 15. The waterproof and breathable membrane 15 is fixedly connected to the connecting pipes 2. When the rain canopy 1 covers the grain, water vapor inside the trailer body 3 will float out through the waterproof and breathable membrane 15, while rainwater cannot enter through the waterproof and breathable membrane 15. This not only provides waterproofing but also prevents the formation of internal condensation droplets, thus preventing mold growth during grain transportation.

[0016] Example 2: Refer to Figure 1-5 As another preferred embodiment of this utility model, based on embodiment 1, the moving mechanism includes a moving sleeve 8. Multiple U-shaped frames 6 are fixedly connected to both ends of the moving sleeve 8. Connecting rods 5 are fixedly connected to both sides of the carriage 3. The moving sleeve 8 is sleeved on the connecting rod 5. The moving sleeve 8 at the end is driven by the driving mechanism. When the awning 1 is unfolded, the moving sleeve 8 slides on the connecting rod 5, ensuring the stability of the awning 1 when unfolded.

[0017] The drive mechanism includes a second pulley 13, on which a rotating shaft 11 is fixedly connected. The rotating shaft 11 is rotatably connected to the outer wall of the carriage 3 via a bearing. A connecting shaft 14 is rotatably connected to the carriage 3 via a bearing. A first pulley 10 is fixedly connected to the connecting shaft 14. The connecting shaft 14 transmits power to the two first pulleys 10, so that a single motor can drive the awning to open or close.

[0018] A belt 9 is fitted between the first pulley 10 and the second pulley 13. The belt 9 is fixedly connected to the movable sleeve 8 through the connecting part 12. When the belt 9 moves, it drives the movable sleeve 8 at the end to move, thereby unfolding or retracting the awning 1.

[0019] A sealing box 4 is fixedly connected to the outer wall of the carriage 3. A motor 16 is fixedly connected inside the sealing box 4. The motor 16 is connected to the connecting shaft 14 for transmission. The connecting shaft 14 and the sealing box 4 are rotatably connected through a sealing bearing. The sealing box 4 provides a sealing protection for the motor 16 to prevent rainwater from penetrating.

[0020] When the awning is unfolded, the motor 16 rotates, which drives the belt 9 to move under the action of the pulley. When the belt 9 moves, it drives the connecting part 12 to move, and the connecting part 12 drives the moving sleeve 8 to move, thereby driving the U-shaped frame 6 to move and unfold the awning 1. When it is retracted, the motor 16 reverses, drives the belt 9 to move in the opposite direction, and drives the last moving sleeve 8 to move, so that multiple moving sleeves 8 slide on the connecting rod 5 and retract the awning 1.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-unloading semi-trailer box with automatic waterproof function, comprising a box (3), characterized in that, The vehicle body (3) is fixedly connected to a rain canopy (1) at one end. Multiple U-shaped frames (6) are fixedly connected at equal intervals on the lower surface of the rain canopy (1). The multiple U-shaped frames (6) are moved by a moving mechanism. Multiple connecting pipes (2) are connected to the rain canopy (1). Filter screens (7) are fixedly connected to the upper ends of the multiple connecting pipes (2). Waterproof and breathable membranes (15) are provided on the lower surface of the multiple filter screens (7).

2. The self-unloading semi-trailer box with automatic waterproof function according to claim 1, characterized in that, The moving mechanism includes a moving sleeve (8), and the moving sleeve (8) is fixedly connected to both ends of the multiple U-shaped frames (6). The connecting rods (5) are fixedly connected to both sides of the carriage (3). The moving sleeve (8) is sleeved on the connecting rods (5), and the moving sleeve (8) at the end is driven by a driving mechanism.

3. A self-unloading semi-trailer box with automatic waterproof function according to claim 2, characterized in that, The drive mechanism includes a second pulley (13), on which a rotating shaft (11) is fixedly connected. The rotating shaft (11) is rotatably connected to the outer wall of the carriage (3) via a bearing. A connecting shaft (14) is rotatably connected to the carriage (3) via a bearing. A first pulley (10) is fixedly connected to the connecting shaft (14). A belt (9) is sleeved between the first pulley (10) and the second pulley (13). The belt (9) is fixedly connected to the movable sleeve (8) via a connecting part (12).

4. A self-unloading semi-trailer box with automatic waterproof function according to claim 3, characterized in that, A sealing box (4) is fixedly connected to the outer wall of the vehicle body (3), and a motor (16) is fixedly connected inside the sealing box (4). The motor (16) is connected to the connecting shaft (14) for transmission.

5. A self-unloading semi-trailer box with automatic waterproof function according to claim 4, characterized in that, The connecting shaft (14) and the sealing box (4) are rotatably connected by a sealing bearing.

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