A tarpaulin arrangement for a semi-trailer
By designing top, side, and rear covering components on the semi-trailer and using an electric motor to drive the tarpaulin to cover the top, sides, and rear of the semi-trailer, the problem of incomplete covering in the prior art is solved, improving efficiency and reliability and reducing the intensity of manual operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG TENGYUN SPECIAL PURPOSE VEHICLE MFG CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-14
AI Technical Summary
The existing tarpaulin devices on semi-trailers can only automatically tighten the top, failing to effectively cover the rear and sides of the semi-trailer, thus failing to completely isolate rainwater and affecting their performance.
The design incorporates top, side, and rear covering components. An electric motor drives threaded blocks and a roller to cover the top, sides, and rear of the semi-trailer with tarpaulin. Combined with connecting buckles and friction posts, it achieves all-around coverage and reduces manual labor intensity.
It achieves comprehensive coverage of semi-trailers, improves the reliability and efficiency of the equipment, reduces the intensity of manual operation, and ensures the protection of goods during transportation.
Smart Images

Figure CN224490836U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tarpaulin devices, specifically a tarpaulin device for semi-trailers. Background Technology
[0002] A semi-trailer tarpaulin is a device installed on a semi-trailer to cover and protect goods. Its main function is to prevent goods from being affected by external environmental factors such as rain, dust, and direct sunlight during transportation.
[0003] Patent CN221914129U discloses a semi-trailer tarpaulin device, including a box shell with a first dual-output shaft motor at one end. A traction assembly is mounted on the side wall of the box shell. The first dual-output shaft motor is connected to two traction assemblies. A tarpaulin is laid on the box shell, with one end connected to the box shell and the other end connected to the two traction assemblies via a connector. The traction assembly includes a first drive shaft mounted on the box shell via a first fixing block, with the first fixing block and the first drive shaft rotatably connected. A first pulley is located at the free end of the first drive shaft, and a second pulley is rotatably mounted on the side wall of the box shell. The first and second pulleys are connected by a traction rope. The tarpaulin is connected to the traction rope via a connector. This patent, by setting up a traction assembly and connecting one end of the tarpaulin to the traction assembly, allows the first dual-output shaft motor to drive the tarpaulin to cover the opening of the box shell, reducing manual labor intensity and improving personal and cargo safety.
[0004] As shown in the above technology, although ordinary tarpaulin devices are operated electrically, they can only automatically tighten the top of the semi-trailer, without covering the rear and sides of the semi-trailer, thus failing to completely isolate rainwater and seriously affecting the actual effectiveness of the tarpaulin. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a semi-trailer tarpaulin device, which solves the problem that ordinary tarpaulin devices can only automatically tighten the top of the semi-trailer, leaving the rear and sides of the semi-trailer unprotected and unable to completely isolate rainwater, thus seriously affecting the actual effectiveness of the tarpaulin.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a semi-trailer tarpaulin device, comprising:
[0007] A semi-trailer floor, wherein a vertical plate is fixedly connected to the top of the semi-trailer floor, a top plate is fixedly connected to the top of the vertical plate, and a cab baffle is fixedly connected to one side of the top of the semi-trailer floor;
[0008] A top covering assembly, one side of which is fixedly connected to the top of the cab baffle, is used to cover the top of the semi-trailer with a tarpaulin.
[0009] A side shielding assembly, one side of which is fixedly connected to one side of a vertical plate, is used to cover the side of a semi-trailer with a tarpaulin.
[0010] A rear covering assembly, one side of which is rotatably connected to one side of a vertical plate, is used to cover the rear of the semi-trailer with a tarpaulin.
[0011] Preferably, the top shielding assembly includes a drive motor fixedly connected to the top of the front bumper, and one end of the output shaft of the drive motor is fixedly connected to a threaded shaft via a coupling.
[0012] Preferably, a track frame is fixedly connected to the top of the top plate, one end of the threaded shaft is rotatably connected to the left side of the inner wall of the track frame, a threaded block is threadedly connected to the surface of the threaded shaft, a support plate is fixedly connected to the top of the threaded block, a rotating shaft is movably connected to the top of the support plate, a first tarpaulin is fixedly connected to the surface of the rotating shaft, a sliding plate is rotatably connected to one end of the rotating shaft, a guide frame is slidably connected to one side of the sliding plate, and one side of the guide frame is fixedly connected to one side of the track frame.
[0013] Preferably, the side shielding assembly includes a side motor fixedly connected to one side of the vertical plate, and mounting rings are fixedly connected to both sides of the semi-trailer floor.
[0014] Preferably, one end of the output shaft of the side motor is fixedly connected to a reel via a connector, a second tarpaulin is fixedly connected to the surface of the reel, a connecting buckle is fixedly connected to the surface of the second tarpaulin, and a sealing plate is rotatably connected to the bottom of the connecting buckle.
[0015] Preferably, the rear shielding assembly includes an auxiliary shaft rotatably connected to one side of the vertical plate surface, a third tarpaulin fixedly connected to the surface of the auxiliary shaft, a connecting rope fixedly connected to the surface of the third tarpaulin, and a friction column fixedly connected to the rear of the semi-trailer floor.
[0016] This utility model provides a tarpaulin device for semi-trailers. Compared with the prior art, it has the following advantages:
[0017] 1. This semi-trailer tarpaulin device utilizes a top-mounted shielding assembly. A drive motor directly drives a threaded block to move a distal rotating shaft outwards, covering the entire top of the semi-trailer with a first tarpaulin. Multiple rotating shafts support the first tarpaulin, evenly distributing its weight and preventing overload during movement, ensuring long-term stable operation. Side shielding assemblies, with vertical plates dividing the top of the semi-trailer floor into multiple areas, use a side-mounted motor to drive a roller, allowing for rapid deployment of the tarpaulin. Connecting buckles, sealing plates, and mounting rings securely hold the drooping second tarpaulin in place, preventing wind sway and improving reliability. The motor drive reduces worker workload and solves the problem of tarpaulin coverage on the top and sides of the semi-trailer.
[0018] 2. This semi-trailer tarpaulin device utilizes a rear-end covering component to directly cover the rear of the semi-trailer with a third tarpaulin. Connected by a rope to the friction post rope, the remaining areas of the vehicle can be covered electronically. Given the frequent loading and unloading of cargo at the rear, damage to the electronic control equipment can affect loading. Manual operation reduces the probability of accidents, and manually operating a single rear tarpaulin does not increase labor intensity. This solves the problem of ordinary tarpaulin devices only automatically tightening the top of the semi-trailer, leaving the rear and sides unprotected, failing to completely isolate rainwater and severely impacting the actual effectiveness of the tarpaulin. Attached Figure Description
[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0020] Figure 2 This utility model Figure 1 A magnified view of a section at point A in the middle;
[0021] Figure 3 This utility model Figure 1 A magnified view of a section at point B in the middle;
[0022] Figure 4 This is a cross-sectional view of the present invention;
[0023] Figure 5 This utility model Figure 4 A magnified view of a section at point C;
[0024] Figure 6 This utility model Figure 4 A magnified view of a section at point D.
[0025] In the diagram: 1. Semi-trailer floor; 2. Vertical plate; 3. Top plate; 4. Front bumper; 5. Top covering assembly; 51. Drive motor; 52. Threaded shaft; 53. Track frame; 54. Threaded block; 55. Support plate; 56. Rotating shaft; 57. First tarpaulin; 58. Sliding plate; 59. Guide frame; 6. Side covering assembly; 61. Side motor; 62. Roller; 63. Second tarpaulin; 64. Connecting buckle; 65. Sealing plate; 66. Mounting ring; 7. Rear covering assembly; 71. Auxiliary shaft; 72. Third tarpaulin; 73. Connecting rope; 74. Friction column. Detailed Implementation
[0026] 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.
[0027] Please see Figures 1-6 This utility model provides two technical solutions:
[0028] Example 1: A semi-trailer tarpaulin device, comprising:
[0029] The semi-trailer floor 1 has a vertical plate 2 fixedly connected to the top of the semi-trailer floor 1, a top plate 3 fixedly connected to the top of the vertical plate 2, a cab baffle 4 fixedly connected to one side of the top of the semi-trailer floor 1, and a protective frame fixedly connected to the other side of the bottom of the semi-trailer floor 1.
[0030] Top covering assembly 5, one side of top covering assembly 5 is fixedly connected to the top of front panel 4, top covering assembly 5 is used to cover the top of semi-trailer with tarpaulin;
[0031] Side shielding assembly 6, one side of which is fixedly connected to one side of vertical plate 2, is used to cover the side of the semi-trailer with a tarpaulin.
[0032] The rear covering assembly 7 is rotatably connected to one side of the vertical plate 2. The rear covering assembly 7 is used to cover the rear of the semi-trailer with a tarpaulin. Utilizing the top covering assembly 5, the drive motor 51 directly drives the threaded block 54 to move the distal rotating shaft 56 outwards, spreading the first tarpaulin 57 over the entire top of the semi-trailer. The first tarpaulin 57 is supported by multiple rotating shafts 56, which evenly distributes the weight of the tarpaulin, preventing equipment overload during movement and ensuring long-term stable operation of the device. The side shading assembly 6 is set up on the top two sides of the semi-trailer floor 1, with multiple areas divided by vertical plates 2. The side motor 61 drives the roller 62 to move the second tarpaulin 63 down, which can quickly deploy the tarpaulin. In addition, the second tarpaulin 63 can be firmly fixed by the connecting buckle 64, the sealing plate 65 and the mounting ring 66 to prevent it from being blown by the wind, thus improving the reliability of the device. The use of motor drive reduces the labor intensity of the workers and solves the problem of tarpaulin coverage on the top and sides of the semi-trailer.
[0033] Example 2 differs from Example 1 primarily in that: a semi-trailer tarpaulin device, the top covering assembly 5 includes a drive motor 51 fixedly connected to the top of the cab 4, one end of the output shaft of the drive motor 51 is fixedly connected to a threaded shaft 52 via a coupling, a track frame 53 is fixedly connected to the top of the top plate 3, one end of the threaded shaft 52 is rotatably connected to the left side of the inner wall of the track frame 53, a threaded block 54 is threadedly connected to the surface of the threaded shaft 52, a support plate 55 is fixedly connected to the top of the threaded block 54, and a rotating shaft 56 is movably connected to the top of the support plate 55. Multiple rotating shafts 56 are provided, only the rotating shafts 56 furthest from the drive motor 51 are... A support plate 55 is placed, while the others do not have support plates 55 or related threaded blocks 54. The surfaces of the remaining rotating shafts 56 support the first tarpaulin 57, which is fixedly connected to the surfaces of the rotating shafts 56. The area of the first tarpaulin 57 between every two rotating shafts 56 is the same. Therefore, when the far-end rotating shaft 56 is driven, the other rotating shafts 56 will gradually move, and the first tarpaulin 57 will cover the top of the semi-hanging structure. The surface of the rotating shaft 56 is fixedly connected to the first tarpaulin 57. One end of the rotating shaft 56 is rotatably connected to a sliding plate 58. A guide frame 59 is slidably connected to one side of the sliding plate 58. One side of the guide frame 59 is fixedly connected to one side of the track frame 53. Side shielding assembly. Component 6 includes a side motor 61 fixedly connected to one side of the vertical plate 2. Mounting rings 66 are fixedly connected to both sides of the semi-trailer floor 1. One end of the output shaft of the side motor 61 is fixedly connected to a reel 62 via a connector. A second tarpaulin 63 is fixedly connected to the surface of the reel 62. A connecting buckle 64 is fixedly connected to the surface of the second tarpaulin 63. A closing plate 65 is rotatably connected to the bottom of the connecting buckle 64. The rear covering assembly 7 includes an auxiliary shaft 71 rotatably connected to one side of the surface of the vertical plate 2. A third tarpaulin 72 is fixedly connected to the surface of the auxiliary shaft 71. A connecting rope 73 is fixedly connected to the surface of the third tarpaulin 72. A connecting rope 73 is fixedly connected to the rear of the semi-trailer floor 1. The friction column 74, using the rear covering component 7, allows the third tarpaulin 72 to directly cover the rear of the semi-trailer. A connecting rope 73 connects the friction column 74 to the tarpaulin, enabling rapid electronic coverage of the remaining areas of the vehicle. Given the frequent loading and unloading of cargo at the rear, damage to the electronic control equipment can affect loading. Manual operation reduces the probability of accidents, and manually operating a single rear tarpaulin does not increase labor intensity. This solves the problem that ordinary tarpaulin devices can only automatically tighten the top of the semi-trailer, leaving the rear and sides uncovered, failing to completely isolate rainwater and severely impacting the actual effectiveness of the tarpaulin.
[0034] The sealing plate 65 and the mounting ring 66 are compatible with each other. The interior of the carriage has the relevant controllers for the drive motor 51 and the side motor 61. Before the second tarpaulin 63 is retracted, the sealing plate 65 and the mounting ring 66 need to be separated.
[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0036] During operation, the drive motor 51 is turned on, and the rotation of the threaded shaft 52 drives the threaded block 54 in the track frame 53 to move, thereby moving the support plate 55 and the farthest rotating shaft 56 towards the rear of the semi-trailer. During the movement of the farthest rotating shaft 56, the first tarpaulin 57 on its surface is tightened, which in turn drives the nearby rotating shaft 56. Then the first tarpaulin 57 is tightened and covers the top of the semi-trailer. During the movement, the sliding plate 58 slides along the guide frame 59. The side motor 61 is turned on, and the second tarpaulin 63 is lowered and released by the rotation of the roller 62. After the second tarpaulin 63 is fully released, the sealing plate 65 passes through the mounting ring 66, and then the sealing plate 65 is rotated to lock it. The connecting rope 73 is then manually pulled down, and the third tarpaulin 72 is lowered. The connecting rope 73 is then tied to the friction column 74, and the device is fixed. When the device is not in use, it is restored.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A semi-trailer tarpaulin device, characterized in that, include: A semi-trailer floor (1) is provided with a vertical plate (2) fixedly connected to the top of the semi-trailer floor (1), a top plate (3) fixedly connected to the top of the vertical plate (2), and a truck head baffle (4) fixedly connected to one side of the top of the semi-trailer floor (1). Top covering assembly (5), one side of which is fixedly connected to the top of the front panel (4), the top covering assembly (5) is used to cover the top of the semi-trailer with a tarpaulin; Side shielding assembly (6), one side of which is fixedly connected to one side of the vertical plate (2), the side shielding assembly (6) is used to cover the side of the semi-trailer with a tarpaulin; The rear covering assembly (7) is rotatably connected to one side of the vertical plate (2) and is used to cover the rear of the semi-trailer with a tarpaulin.
2. The semi-trailer tarpaulin device according to claim 1, characterized in that: The top shielding assembly (5) includes a drive motor (51) fixedly connected to the top of the front bumper (4), and one end of the output shaft of the drive motor (51) is fixedly connected to a threaded shaft (52) via a coupling.
3. A semi-trailer tarpaulin device according to claim 2, characterized in that: The top of the top plate (3) is fixedly connected to the track frame (53). One end of the threaded shaft (52) is rotatably connected to the left side of the inner wall of the track frame (53). The surface of the threaded shaft (52) is threadedly connected to the threaded block (54). The top of the threaded block (54) is fixedly connected to the support plate (55). The top of the support plate (55) is movably connected to the rotating shaft (56). The surface of the rotating shaft (56) is fixedly connected to the first tarpaulin (57). One end of the rotating shaft (56) is rotatably connected to the sliding plate (58). One side of the sliding plate (58) is slidably connected to the guide frame (59). One side of the guide frame (59) is fixedly connected to one side of the track frame (53).
4. A semi-trailer tarpaulin device according to claim 1, characterized in that: The side shielding assembly (6) includes a side motor (61) fixedly connected to one side of the vertical plate (2), and mounting rings (66) are fixedly connected to both sides of the semi-trailer floor (1).
5. A semi-trailer tarpaulin device according to claim 4, characterized in that: One end of the output shaft of the side motor (61) is fixedly connected to a roller (62) via a connector. A second tarpaulin (63) is fixedly connected to the surface of the roller (62). A connecting buckle (64) is fixedly connected to the surface of the second tarpaulin (63). A sealing plate (65) is rotatably connected to the bottom of the connecting buckle (64).
6. A semi-trailer tarpaulin device according to claim 1, characterized in that: The rear shielding assembly (7) includes an auxiliary shaft (71) rotatably connected to one side of the surface of the vertical plate (2), a third tarpaulin (72) fixedly connected to the surface of the auxiliary shaft (71), a connecting rope (73) fixedly connected to the surface of the third tarpaulin (72), and a friction column (74) fixedly connected to the rear of the semi-trailer floor (1).