A truck tarping apparatus

Abstract

This utility model discloses a truck tarpaulin covering device, relating to the field of truck tarpaulin technology. Specifically, it is a truck tarpaulin covering device comprising a double-track base frame and an umbrella-shaped tarpaulin frame. The umbrella-shaped tarpaulin frame consists of a base support block pulley assembly, a fixed umbrella-shaped frame, and a movable umbrella-shaped frame. A round rod is internally connected to the double-track base frame, and rollers are mounted on the outer surface of the round rod. A transmission chain is connected to the outer surface of the rollers. Tracks are provided at the front and rear of the base frame. This truck tarpaulin covering device features a narrow-at-the-bottom, wide-at-the-top structure for the umbrella-shaped frame, which occupies less space when retracted and increases the support area when unfolded. This improves space utilization compared to traditional flat frames, making it more convenient for truck use. The umbrella-shaped frame and tracks are integrally formed, facilitating installation and ease of use. The cooperation between the pulleys and tracks facilitates the movement of the umbrella-shaped tarpaulin frame, allowing for easy unfolding and retraction, thus improving practicality.

Description

Technical Field

[0001] This utility model relates to the field of truck tarpaulin technology, specifically a truck tarpaulin covering device. Background Technology

[0002] In the modern logistics and transportation industry, trucks, as the main carriers of goods, face increasingly stringent requirements for cargo protection. From an environmental protection perspective, tarpaulin coverings prevent dust and debris from scattering during transport; from a cargo protection perspective, they prevent damage from rain and direct sunlight; and from a safety perspective, they prevent goods from scattering during transit. However, the industry currently faces the following common technical problems: low efficiency of manual operation. Traditional manual tarpaulin covering requires multiple people working together, with each operation taking approximately 20-30 minutes. Especially in high-sided trucks or long-distance transport scenarios, labor costs account for 15%-20% of transportation costs. Safety hazards are significant: operators must climb to the top of the truck to work. Statistics show that falls from height caused by manual tarpaulin covering account for 8.7% of all accidents in the freight industry annually, and the accident risk is 4.3 times higher when working on trucks over 6 meters high compared to ordinary operations. Existing equipment lacks adaptability: most existing automatic tarpaulin covering equipment on the market uses a single-rail traction structure. During vehicle operation, when encountering winds of force 8 or higher (wind speed ≥17.2 m / s), the tarpaulin can sway by 30-50 cm, easily leading to tarpaulin tearing or equipment loosening. Furthermore, the equipment has poor adaptability to different truck lengths (e.g., 6.8 meters, 9.6 meters, 13 meters, etc.), requiring customized modifications, with modification costs accounting for 30%-50% of the original equipment value. The invented truck tarpaulin covering equipment solves the above problems. Utility Model Content

[0003] (a) Technical problems to be solved In view of the shortcomings of the prior art, this utility model provides a truck tarpaulin covering device, which solves the problems mentioned in the background art.

[0004] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a truck tarpaulin covering device, comprising a double-track structure and an umbrella-shaped tarpaulin frame. The umbrella-shaped tarpaulin frame consists of a pulley assembly, a fixed umbrella-shaped frame, and a movable umbrella-shaped frame. The bottom of the umbrella-shaped tarpaulin frame features a double-track design. The outer surface of the double-track structure is made of channel steel, while the inner surface has two upper and lower round rods for transmission. The base support block pulley assembly, the fixed umbrella-shaped frame, and the movable umbrella-shaped frame run within the bottom double-track structure. The inner transmission of the double-track base frame is connected to the round rods, and gears are installed on the outer surface of the round rods. A transmission chain is connected to the outer surface of the gears. Tracks are provided at the front and rear of the base frame. The umbrella-shaped tarpaulin frame contains pulleys adapted to the tracks. A traction line is provided on the outer side of the umbrella-shaped tarpaulin frame. Rubber pads are provided on both sides of the umbrella-shaped tarpaulin frame. A manual crank insertion port is provided inside the base frame. A connector is provided at the end of the round rod. A manual crank handle adapted to the connector can be inserted into the manual crank insertion port.

[0005] Optionally, the movable umbrella-shaped frame is rotatably connected to the base support block pulley assembly via a shaft, and the outer side of the fixed umbrella-shaped frame is fixedly connected to the base support block pulley assembly. The movable umbrella-shaped frame is located on the side of the fixed umbrella-shaped frame. There are several sets of umbrella-shaped tarpaulin frames, one of which is fixedly connected to the base frame.

[0006] Optionally, there may be several base support block pulley assemblies, with the bottoms of two of the base support block pulley assemblies being fixedly connected to the drive chain.

[0007] Optionally, the pulleys abut against the track, and the pulleys can slide along the length of the track. There are several umbrella-shaped tarpaulin frames.

[0008] Optionally, the maximum spacing between the two base support block pulley assemblies at corresponding positions is greater than the width of the base frame, and the position of the manual crank socket corresponds to the position of the round rod.

[0009] Optionally, the maximum included angle between the fixed umbrella-shaped frame and the movable umbrella-shaped frame is less than 30 degrees, and the cross-section of the umbrella-shaped tarpaulin frame is narrower at the bottom and wider at the top, with a polygonal structure at the top.

[0010] This utility model provides a truck tarpaulin covering device, which has the following beneficial effects: 1. This truck tarpaulin cover device, through the arrangement of an umbrella-shaped tarpaulin frame, pulley assembly, fixed umbrella-shaped frame, and movable umbrella-shaped frame, features a structure where the umbrella-shaped frame is narrower at the bottom and wider at the top. This minimizes the space occupied when retracted and maximizes the support area when extended. Compared to traditional flat frames, this improves space utilization, making it more convenient for trucks and enhancing practicality.

[0011] 2. This truck tarpaulin covering device, through the setting of tracks and pulleys, integrates the umbrella-shaped frame with the tracks into a single unit, facilitating installation and ease of use. The cooperation between the pulleys and tracks ensures stability and durability, preventing pulley wobbling, disengagement, and jamming. This facilitates the movement, unfolding, and retraction of the umbrella-shaped tarpaulin frame, thereby improving practicality. Traditional flat frames are independently designed, with cross arms and diagonal braces between the tarpaulin poles. The cross arms twist and turn with each other, making them prone to breakage, damage, deformation, and jamming.

[0012] 3. This truck tarpaulin covering equipment, through the setting of umbrella-shaped tarpaulin frame, base support block pulley assembly, fixed umbrella-shaped frame and movable umbrella-shaped frame, and polygonal design of the tarpaulin pole, avoids the phenomenon of water pressure collapsing the tarpaulin in the event of severe weather such as strong winds, rain, snow and other external interference. The double-layer track of this truck tarpaulin covering equipment makes the tarpaulin frame more stable and has a stronger risk resistance, thus achieving the purpose of improving practicality.

[0013] 4. This truck tarpaulin covering device, through the arrangement of round rods, gears and transmission chains, allows for easy manual driving of the gears via a manual crank handle, facilitating the movement and unfolding of the umbrella-shaped tarpaulin frame and adjusting hand speed. Furthermore, the manual crank handle can be detached after use, thus improving practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional unfolding structure of the umbrella-shaped tarpaulin frame of this utility model; Figure 2 This is a frontal view of the unfolded structure of the umbrella-shaped tarpaulin frame of this utility model; Figure 3 This is a top view of the unfolded structure of the umbrella-shaped tarpaulin frame of this utility model; Figure 4 This is a side view of the unfolded structure of the umbrella-shaped tarpaulin frame of this utility model; Figure 5 This is a schematic diagram of the three-dimensional retractable umbrella-shaped tarpaulin frame of this utility model; Figure 6 This is a front view of the retracted structure of the umbrella-shaped tarpaulin frame of this utility model; Figure 7 This is a top view of the retracted structure of the umbrella-shaped tarpaulin frame of this utility model; Figure 8 This is a side view of the retracted structure of the umbrella-shaped tarpaulin frame of this utility model; Figure 9 This is a side view of the track structure of this utility model.

[0015] In the diagram: 1. Double track base frame; 2. Umbrella-shaped tarpaulin frame; 201. Base support block pulley assembly; 202. Fixed umbrella-shaped frame; 203. Movable umbrella-shaped frame; 3. Track; 4. Manual crank socket. Detailed Implementation

[0016] 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.

[0017] Example 1 Please see Figures 1 to 9 This utility model provides a technical solution: a truck tarpaulin covering device, including a double-track base frame 1 and an umbrella-shaped tarpaulin frame 2. The umbrella-shaped tarpaulin frame 2 consists of a base support block pulley assembly 201, a fixed umbrella-shaped frame 202, and a movable umbrella-shaped frame 203. The bottom of the umbrella-shaped tarpaulin frame has a double-track design. The outer surface of the double track is made of channel steel, and the inner internal transmission is fixed with two upper and lower round rods. The base support block pulley assembly, the fixed umbrella-shaped frame, and the movable umbrella-shaped frame run within the bottom double track. The double-track base frame 1 is internally rotatably connected to... The round rod has gears mounted on its outer surface, and a transmission chain is connected to the outer surface of the gears. The double-track base frame 1 has tracks 3 on both the front and back. The umbrella-shaped tarpaulin frame 2 has pulleys inside that are compatible with the tracks 3. The outer side of the umbrella-shaped tarpaulin frame 2 has a traction line. Both sides of the umbrella-shaped tarpaulin frame 2 have rubber pads. The double-track base frame 1 has a manual crank socket 4 inside. The end of the round rod has a connector. A manual crank that is compatible with the connector can be inserted into the manual crank socket 4.

[0018] Specifically, after the movable umbrella-shaped frame 203 is unfolded, the umbrella-shaped tarpaulin frame 2 presents a shape that is narrow at the bottom and wide at the top, which improves the stability of the support.

[0019] Please see Figures 1 to 8 The movable umbrella-shaped frame 203 is rotatably connected to the pulley assembly 201 via a shaft. The outer side of the fixed umbrella-shaped frame 202 is fixedly connected to the pulley assembly 201. The movable umbrella-shaped frame 203 is located on the side of the fixed umbrella-shaped frame 202. There are several sets of umbrella-shaped tarpaulin frames 2, one of which is fixedly connected to the double track base frame 1.

[0020] Specifically, the transmission of two gears and a drive chain facilitates the movement of the outermost umbrella-shaped tarpaulin frame 2, allowing for easy movement and expansion of the umbrella-shaped tarpaulin frame 2.

[0021] Please refer to Figure 1 to Figure 9 There are several base support block pulley assemblies 201, and the bottoms of two base support block pulley assemblies 201 are fixedly connected to the transmission chain.

[0022] Specifically, the pulley moves along the length of the track 3 to facilitate the movement of the umbrella-shaped tarpaulin frame 2. The arrangement of multiple umbrella-shaped tarpaulin frames 2 improves the stability of the tarpaulin support.

[0023] Please refer to Figure 1 to Figure 8 The pulley abuts against the track 3, and the pulley can slide along the length of the track 3. There are several umbrella-shaped tarpaulin frames 2.

[0024] Specifically, the manual crank is convenient for docking and use, or it can be replaced with a motor to drive the unfolding and retraction of the umbrella-shaped tarpaulin frame 2, which can be freely selected according to the vehicle conditions and work requirements.

[0025] Please refer to Figure 1 to Figure 9 The maximum distance between the two base support block pulley assemblies 201 at the corresponding positions is greater than the width of the double track base frame 1, and the position of the manual crank socket 4 corresponds to the position of the round rod.

[0026] Specifically, the umbrella-shaped tarpaulin frame 2 has a narrow bottom and a wide top structure, which makes the coverage area larger when unfolded and the space occupied when retracted, thus improving space utilization compared to traditional flat frames.

[0027] Please refer to Figure 1 to Figure 9 The maximum included angle between the fixed umbrella frame 202 and the movable umbrella frame 203 is less than 30 degrees. The cross-section of the umbrella tarpaulin frame 2 is narrow at the bottom and wide at the top, and the top is a polygonal structure.

[0028] In use, a double track 3 is installed on the double track base frame 1. The pulleys on the umbrella-shaped tarpaulin frame 2 abut against the track 3. When unfolding the umbrella-shaped tarpaulin frame 2, the operator holds the hand crank handle, inserting the end of the hand crank handle into the hand crank handle socket 4, so that the end of the hand crank handle aligns with the connector on the round rod. Turning the hand crank handle causes the round rod to drive the gears to rotate. The two gears are connected to a transmission chain, and the rotation of the gears drives the transmission chain to rotate, making the two gears rotate synchronously. The transmission chain is fixedly connected to the outermost umbrella-shaped tarpaulin frame 2, facilitating the movement of the outermost umbrella-shaped tarpaulin frame 2. This allows the pulleys on the umbrella-shaped tarpaulin frame 2 to move along the length of the track 3. Adjacent umbrella-shaped tarpaulin frames 2 are connected by a traction rope. As the outermost umbrella-shaped tarpaulin frame 2 moves, multiple umbrella-shaped tarpaulin frames 2 can be moved, facilitating the unfolding of the umbrella-shaped tarpaulin frame 2. The movable umbrella-shaped tarpaulin frames on the umbrella-shaped tarpaulin frame 2... The frame 203, under its own weight, tilts, causing the umbrella-shaped frame 203 to form a shape that is narrower at the bottom and wider at the top, improving the support for the tarpaulin and facilitating its unfolding. When the umbrella-shaped tarpaulin frame 2 retracts, the manual crank is turned in the opposite direction, causing the gears to rotate in the opposite direction, which in turn drives the outermost umbrella-shaped tarpaulin frame 2 to move. This outermost umbrella-shaped tarpaulin frame 2 then pushes and drives the other umbrella-shaped tarpaulin frames 2 to move. The rubber pads on the umbrella-shaped tarpaulin frames 2 prevent rigid collisions between adjacent umbrella-shaped tarpaulin frames 2, facilitating their retraction. After retraction, the frame body has less usable space, making it more convenient for trucks. The double-track tarpaulin frame 3 can be operated manually using the manual crank, or the manual crank can be replaced with a motor to make it an automatic umbrella-shaped double-track tarpaulin frame 3. This allows for flexible selection based on vehicle conditions and work requirements, improving practicality.

[0029] 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 truck tarpaulin covering device, comprising a double-track base frame and an umbrella-shaped tarpaulin frame, characterized in that: The umbrella-shaped tarpaulin frame consists of a base support block pulley assembly, a fixed umbrella-shaped frame, and a movable umbrella-shaped frame. The bottom of the umbrella-shaped tarpaulin frame features a double-track design. The outer surface of the double track is made of channel steel, while the inner surface has two fixed upper and lower round rods for transmission. The base support block pulley assembly, the fixed umbrella-shaped frame, and the movable umbrella-shaped frame run within the bottom double track. Gears are installed on the outer surface of the double track, and a transmission chain is connected to the outer surface of the gears. The inside of the umbrella-shaped tarpaulin frame is equipped with pulleys that are compatible with the track. A traction line is installed on the outer side of the umbrella-shaped tarpaulin frame, and rubber pads are installed on both sides of the umbrella-shaped tarpaulin frame. The inside of the channel steel double track has a manual crank insertion port, and the end of the round rod has a connector. A manual crank that is compatible with the connector can be inserted into the manual crank insertion port.

2. The truck tarpaulin covering device according to claim 1, characterized in that: The movable umbrella-shaped frame is connected to the pulley assembly via a shaft in a double track. The outer side of the fixed umbrella-shaped frame is fixedly connected to the pulley assembly of the base support block. The movable umbrella-shaped frame is located on the side of the fixed umbrella-shaped frame. There are several sets of umbrella-shaped tarpaulin frames, one of which is fixedly connected to the double track base frame.

3. The truck tarpaulin covering device according to claim 1, characterized in that: There are several pulley assemblies supporting the umbrella-shaped tarpaulin frame, among which the bottom of two base support block pulley assemblies is fixedly connected to the transmission chain.

4. The truck tarpaulin covering device according to claim 1, characterized in that: The pulleys abut against the track and can slide along the length of the track. There are several umbrella-shaped tarpaulin frames.

5. The truck tarpaulin covering device according to claim 1, characterized in that: The maximum distance between the two pulley assemblies at the corresponding positions is greater than the width of the double track base frame, and the position of the manual crank socket corresponds to the position of the round rod.

6. The truck tarpaulin covering device according to claim 1, characterized in that: The maximum angle between the fixed umbrella-shaped frame and the movable umbrella-shaped frame is less than 30 degrees. The cross-section of the umbrella-shaped tarpaulin frame is narrower at the bottom and wider at the top, with a polygonal structure at the top.

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