A cargo covering device for road transport

Abstract

This utility model discloses a cargo covering device for road transportation, including a winding rod and a covering cloth. Two winding rods are provided, parallel to each other and fixedly connected between two support plates. The two support plates are located between two vertical plates, rotatably connected to them. The covering cloth passes between the two winding rods and simultaneously contacts them. By setting winding rods at both ends of the covering cloth, after the covering cloth is unfolded, a second servo motor can be activated to drive the support plates to rotate the winding rods, which simultaneously wind up both ends of the covering cloth. This design allows for flexible adjustment of the covering cloth's tightness according to the actual stacking height and fullness of the cargo, reducing or even eliminating gaps between the covering cloth and the cargo, effectively preventing cargo shaking and collisions during transportation. Simultaneously, it ensures the covering cloth fits tightly against the cargo surface, significantly improving cargo stability and adapting to transportation scenarios with different load capacities.

Description

Technical Field

[0001] This utility model relates to the field of road transportation technology, specifically to a cargo covering device for road transportation. Background Technology

[0002] In the field of road freight transport, cargo covering devices are core components that ensure the safe and compliant transport of goods. They protect goods from rain, dust, and sun exposure during transport, while also providing a securing effect to prevent goods from shifting or falling due to bumps and wind during high-speed travel. Currently, the mainstream cargo covering devices in the industry are mainly divided into manual tarpaulins, roll-up tarpaulins, and simple snap-on covering structures, which are widely used in transportation scenarios such as small and medium-sized trucks and semi-trailers.

[0003] A cargo covering device for road transport, patent number CN 223302696 U, uses a motor-driven lead screw to achieve rapid deployment and retraction of the covering tarpaulin. This ensures the tarpaulin deploys and retracts smoothly and reliably under various working conditions, effectively improving cargo covering efficiency and significantly enhancing cargo transport safety. However, in actual use, when the cargo compartment is not fully loaded, a large gap can easily form between the covering and the cargo. During high-speed transport, the cargo is prone to swaying within this gap due to bumps, potentially causing collision damage and even displacement of the covering, weakening its securing effect. Furthermore, this type of device lacks a structure for adjusting the fit of the covering, making it impossible to tighten the covering according to the actual stacking height of the cargo. When dealing with uneven cargo, the covering is prone to localized loosening, making it difficult to guarantee transport stability. Utility Model Content

[0004] The purpose of this utility model is to provide a cargo covering device for road transportation, which solves the problem mentioned in the background art that the existing covering devices lack a structure for adjusting the fit of the covering cloth, cannot tighten the covering cloth according to the actual stacking height of the cargo, and the covering cloth is prone to local loosening when facing uneven cargo, making it difficult to ensure transportation stability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cargo covering device for road transport, comprising a winding rod and a covering cloth, wherein there are two winding rods, which are parallel to each other and fixedly connected between two support plates, and the two support plates are located between two vertical plates, wherein the support plates are rotatably connected to the vertical plates, and the covering cloth passes between the two winding rods and contacts the two winding rods simultaneously.

[0006] In this technical solution, after the covering cloth is unfolded, the second servo motor can be activated to drive the support plate to rotate the winding rod, which simultaneously winds up both ends of the covering cloth. This design can flexibly adjust the tightness of the covering cloth according to the actual stacking height and fullness of the goods, reducing or even eliminating the gap between the covering cloth and the goods, effectively preventing the goods from shaking and colliding during transportation. At the same time, it allows the covering cloth to fit tightly against the surface of the goods, greatly improving the stability of the goods and adapting to transportation scenarios with different loading capacities.

[0007] Preferably, a lead screw is rotatably connected between the two vertical plates. The lead screw is located below the winding rod, and the surface of the lead screw is provided with several first moving blocks and one second moving block. Limiting rods are fixedly connected between the vertical plates on the upper and lower sides of the lead screw. The limiting rods pass through the first moving block and the second moving block and are slidably connected to the first moving block and the second moving block.

[0008] Preferably, the first moving block does not contact the lead screw, the lead screw passes through the circular hole on the surface of the first moving block, the second moving block is penetrated by the lead screw and threadedly connected to the lead screw, and a first servo motor is fixedly connected to the outer wall of the vertical plate on one side corresponding to the horizontal height of the lead screw, and the tail end of the drive shaft of the first servo motor is connected to one end of the lead screw through a coupling.

[0009] Preferably, a second servo motor is fixedly connected to the outer surface of the vertical plate directly above the first servo motor. The tail end of the drive shaft of the second servo motor is connected to the support plate on the current side via a coupling. A rotating block is provided on the outer surface of the vertical plate on the other side, and the rotating block rotates synchronously with the support plate.

[0010] Preferably, hooks are fixedly connected to the top of both the first and second moving blocks, and several hooks are provided at the bottom edge of the covering cloth. The first moving block near the motor is fixedly connected to the vertical plate.

[0011] Preferably, two back cover cloths are fixedly connected to the rear edge of the covering cloth, and a tie is fixedly connected to the bottom of the back cover cloths.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model features winding rods at both ends of a covering cloth. After the covering cloth is unfolded, a second servo motor drives the support plate to rotate the winding rods, which simultaneously wind up both ends of the covering cloth. This design allows for flexible adjustment of the covering cloth's tightness based on the actual stacking height and fullness of the goods, reducing or even eliminating gaps between the covering cloth and the goods. This effectively prevents goods from shaking and colliding during transportation, while ensuring the covering cloth fits tightly against the surface of the goods, significantly improving the stability of the goods and adapting to transportation scenarios with different loading capacities.

[0014] 2. This utility model provides a rear cover at the rear edge of the cover cloth, which can specifically cover the rear opening of the carriage, making up for the lack of rear protection in traditional devices; the rope at the bottom of the rear cover cloth can be tied to the rotating blocks on both sides, and automatically tightened as the rotating blocks rotate, which strengthens the rear protection effect and further enhances the overall stability of the cover cloth, thereby improving transportation safety under complex road conditions. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is an overall view of the present invention;

[0017] Figure 2 This is a schematic diagram of the winding rod structure of this utility model;

[0018] Figure 3 This is a diagram showing the positional relationship between the covering cloth and the winding rod of this utility model.

[0019] In the diagram: 1. Covering cloth; 101. Back cover cloth; 102. Tie rope; 103. Hook; 2. Rotating block; 3. Vertical plate; 4. Lead screw; 401. Servo motor No. 1; 5. Limiting rod; 6. Moving block No. 1; 7. Moving block No. 2; 8. Hook; 9. Support plate; 901. Servo motor No. 2; 10. Winding rod. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0021] A cargo covering device for road transport, see [link / reference] Figures 1 to 3 It includes a winding rod 10 and a covering cloth 1. There are two winding rods 10, which are parallel to each other and fixedly connected between two support plates 9. The two support plates 9 are located between two vertical plates 3. The support plates 9 are rotatably connected to the vertical plates 3. The covering cloth 1 passes between the two winding rods 10 and contacts the two winding rods 10 at the same time.

[0022] In the above technical solution, the vertical plate 3 provides vertical support for the overall structure and is fixed to the surface of the truck bed; the support plate 9 rotates with the vertical plate 3 through bearings to form a rotating carrier for the winding rod 10; the two winding rods 10 are fixed parallel between the support plate 9, and when the covering cloth 1 passes through the gap between the two rods, its surface is tightly attached to the outer wall of the two winding rods 10 to form a stable tension base; when the covering cloth 1 is fully unfolded, the support plate 9 is driven to rotate, which can simultaneously drive the two winding rods 10 to rotate around the axis of the vertical plate 3. Through the friction between the winding rods 10 and the covering cloth 1, the opening and closing of both ends of the covering cloth 1 can be adjusted, thereby flexibly adjusting the tightness of the covering cloth 1 according to the actual stacking height and fullness of the goods, reducing or even eliminating the gap between the covering cloth 1 and the goods, effectively avoiding the shaking and collision of goods during transportation, and at the same time allowing the covering cloth 1 to be tightly attached to the surface of the goods, greatly improving the stability of the goods and adapting to transportation scenarios with different loading capacities.

[0023] Specifically, such as Figure 2 As shown, a lead screw 4 is rotatably connected between the two vertical plates 3. The lead screw 4 is located below the winding rod 10, and the surface of the lead screw 4 is provided with several first moving blocks 6 and one second moving block 7. Limiting rods 5 are fixedly connected between the vertical plates 3 on the upper and lower sides of the lead screw 4. The limiting rods 5 pass through the first moving blocks 6 and the second moving blocks 7 and are slidably connected to the first moving blocks 6 and the second moving blocks 7.

[0024] In the above technical solution, the limiting rod 5 is fixed to the vertical plate 3 and passes through the through hole of the first moving block 6 and the second moving block 7, restricting the two moving blocks to slide only in the horizontal direction to avoid rotational deviation; when the screw 4 rotates, the second moving block 7 moves along the screw 4 under the driving force of the screw thread, and the first moving block 6 can slide synchronously with the pushing of the second moving block 7 or the pulling force of the covering cloth 1, together providing bottom support and unfolding traction for the covering cloth 1. The setting of multiple sets of first moving blocks 6 can disperse the bottom tension of the covering cloth 1, prevent excessive local stress from causing the cloth surface to tear, and extend the service life of the covering cloth 1.

[0025] Furthermore, such as Figure 3 As shown, the first moving block 6 does not contact the lead screw 4. The lead screw 4 passes through the round hole on the surface of the first moving block 6. The second moving block 7 is penetrated by the lead screw 4 and threadedly connected to the lead screw 4. Hooks 8 are fixedly connected to the top of both the first moving block 6 and the second moving block 7. Several hooks 103 are provided at the bottom edge of the covering cloth 1. The first moving block 6, which is close to the motor, is fixedly connected to the vertical plate 3.

[0026] In the above technical solution, the diameter of the circular hole on the surface of the first moving block 6 is slightly larger than the diameter of the lead screw 4, allowing it to slide freely along the lead screw 4 without being driven by the thread, and only moving synchronously with external force; the second moving block 7 moves in a directional manner by engaging with the lead screw 4 through a thread; the hook 8 at the top of the moving block is detachably connected to the hook 103 of the covering cloth 1, forming a "multi-point fixing" structure; the first moving block 6 near the motor is fixed to the vertical plate 3, serving as the fixed end point of the covering cloth 1; when the second moving block 7 moves, it can pull the covering cloth 1 open through the hook 8, and the other first moving blocks 6 slide synchronously with the traction of the cloth surface, keeping the cloth surface flat. It is worth noting that when the covering cloth 1 is retracted, the wrinkles can be compressed normally without affecting the subsequent unfolding and use of the covering cloth 1, and the distance between the two winding rods 10 is sufficient for the covering cloth 1 to be completely retracted.

[0027] It is worth noting that, such as Figure 2 As shown, a servo motor 401 is fixedly connected to the outer wall of the vertical plate 3 on one side corresponding to the horizontal height of the lead screw 4. The tail end of the drive shaft of the servo motor 401 is connected to one end of the lead screw 4 via a coupling. A servo motor 901 is fixedly connected to the outer surface of the vertical plate 3 directly above the servo motor 401. The tail end of the drive shaft of the servo motor 901 is connected to the support plate 9 on the current side via a coupling. A rotating block 2 is provided on the outer surface of the vertical plate 3 on the other side. The rotating block 2 rotates synchronously with the support plate 9.

[0028] In the above technical solution, when the first servo motor 401 starts, it drives the lead screw 4 to rotate at a constant speed, thereby moving the second moving block 7 to unfold or retract the covering cloth 1. The second servo motor 901 is connected to the support plate 9 through a coupling, driving the support plate 9 to rotate the winding rod 10. When the winding rod 10 rotates, it uses friction to wind up both ends of the covering cloth 1, adjusting the tightness of the cloth. The rotating block 2 on the other side is coaxially fixed with the support plate 9 and rotates synchronously with the support plate 9. It serves as a fixed carrier for the tie rope 102 of the rear cover 101. When rotating, it can tighten the tie rope 102, strengthening the rear protection effect and further enhancing the overall stability of the covering cloth 1, thus improving transportation safety under complex road conditions. It should be noted that the two first servo motors 401 on both sides of the covering cloth 1 are controlled by the same controller to start and stop, and the two second servo motors 901 are also controlled by the same controller, thereby ensuring that the lead screws 4 on both sides rotate and stop simultaneously, keeping the unfolding of both ends of the covering cloth 1 synchronized.

[0029] It is worth noting that two rear cover sheets 101 are fixedly connected to the rear edge of the cover sheet 1, and a tie rope 102 is fixedly connected to the bottom of the rear cover sheet 101. The rear cover sheets 101 are made of the same rainproof material as the cover sheet 1, and are symmetrically fixed to both sides of the rear end of the cover sheet 1, covering the left and right areas of the rear opening of the carriage. The tie rope 102 is a high-strength nylon rope, fixed to the bottom of the rear cover sheet 101. When in use, the tie rope 102 is crisscrossed and wrapped around the rotating blocks 2 on both sides. When the rotating blocks 2 rotate with the support plate 9, the tie rope 102 can be tightened simultaneously, so that the rear cover sheet 101 fits tightly against the rear end of the carriage, effectively preventing rainwater and sand from seeping in.

[0030] In addition, all components designed in this utility model are general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A cargo covering device for road transport, comprising a retractable rod (10) and a covering cloth (1), characterized in that: The winding rod (10) is provided in two parts. The two winding rods (10) are parallel to each other and are fixedly connected between two support plates (9). The two support plates (9) are located between two vertical plates (3). The support plates (9) are rotatably connected to the vertical plates (3). The covering cloth (1) passes between the two winding rods (10) and contacts the two winding rods (10) at the same time.

2. The cargo covering device for road transport according to claim 1, characterized in that: A lead screw (4) is rotatably connected between the two vertical plates (3). The lead screw (4) is located below the winding rod (10), and the surface of the lead screw (4) is provided with several first moving blocks (6) and a second moving block (7). Limiting rods (5) are fixedly connected between the vertical plates (3) on the upper and lower sides of the lead screw (4). The limiting rods (5) pass through the first moving block (6) and the second moving block (7) and are slidably connected to the first moving block (6) and the second moving block (7).

3. A cargo covering device for road transport according to claim 2, characterized in that: The first moving block (6) does not contact the lead screw (4). The lead screw (4) passes through the round hole on the surface of the first moving block (6). The second moving block (7) is penetrated by the lead screw (4) and threadedly connected to the lead screw (4). The outer wall of the vertical plate (3) on one side corresponding to the horizontal height of the lead screw (4) is fixedly connected to the first servo motor (401). The tail end of the drive shaft of the first servo motor (401) is connected to one end of the lead screw (4) through a coupling.

4. A cargo covering device for road transport according to claim 3, characterized in that: A second servo motor (901) is fixedly connected to the outer surface of the vertical plate (3) directly above the first servo motor (401). The tail end of the drive shaft of the second servo motor (901) is connected to the support plate (9) on the current side via a coupling. A rotating block (2) is provided on the outer surface of the vertical plate (3) on the other side. The rotating block (2) rotates synchronously with the support plate (9).

5. A cargo covering device for road transport according to claim 2, characterized in that: The top of the first moving block (6) and the second moving block (7) are both fixedly connected with hooks (8), and the bottom edge of the covering cloth (1) is provided with several hooks (103). The first moving block (6) near the motor is fixedly connected to the vertical plate (3).

6. A cargo covering device for road transport according to claim 1, characterized in that: Two back cover cloths (101) are fixedly connected to the rear edge of the cover cloth (1), and a rope (102) is fixedly connected to the bottom of the back cover cloth (101).

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