Low-wind-resistance van type semi-trailer vehicle body

Abstract

The utility model discloses a low wind resistance van type semi-trailer vehicle body which comprises a vehicle body main body, the side wall of the vehicle body main body is fixedly connected with two installation frames, the installation frames are provided with guiding mechanisms used for guiding airflow, the guiding mechanisms are rotationally connected to driving shafts of the installation frames, the side wall of each driving shaft is fixedly connected with a rotating strip, and the rotating strips are fixedly connected with the vehicle body main body. A first rain baffle is arranged on the side wall of the rotating strip, a second rain baffle is arranged on the side wall of the first rain baffle, a motor is fixedly connected to the lower end of the mounting frame, and a rain cover is arranged at the upper end of the vehicle body. The guiding mechanism is arranged, air flows on the two sides and the upper portion of the semitrailer body can be guided to flow towards the two sides through the rain cover, the first rain baffle and the second rain baffle, the air flows on the two sides do not collide with the corners of the box body, and therefore resistance is not increased, the resistance of the semitrailer is greatly reduced, and the practicability of the semitrailer is improved.

Description

Technical Field

[0001] This utility model relates to the field of box semi-trailer body technology, and in particular to a box semi-trailer body with low wind resistance. Background Technology

[0002] Box semi-trailers are a common type of semi-trailer. The body of a box semi-trailer includes a cab and a frame, with the box mounted on the frame. The box is used to load goods and is widely used in logistics transportation, express delivery, and commercial transportation.

[0003] The existing box semi-trailer body is a rectangular box with sharp edges. Some box semi-trailer bodies have sloping panels installed on top of the front to guide airflow and reduce body drag. However, the sides and corners of the semi-trailer body are not guided by components. As a result, the airflow passing through the sides of the front directly hits the corners of the body, thus creating a certain amount of drag. Therefore, it is necessary to design a box semi-trailer body with low wind resistance to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a low-drag box semi-trailer body.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A low-drag box semi-trailer body includes a body body. Two mounting frames are fixedly connected to the side wall of the body body. The mounting frames are equipped with a guiding mechanism for guiding airflow. The guiding mechanism is rotatably connected to a drive shaft of the mounting frames. A rotating bar is fixedly connected to the side wall of the drive shaft. A first rain shield is provided on the side wall of the rotating bar. A second rain shield is provided on the side wall of the first rain shield. A motor is fixedly connected to the lower end of the mounting frames. A rain cover is provided on the upper end of the body body. A drive mechanism for driving the second rain shield to rotate is provided on the side wall of the first rain shield.

[0007] Preferably, the driving mechanism includes two electric push rods fixedly connected to the side wall of the first rain shield, and the output end of the electric push rod is fixedly connected to a mounting plate, which is fixedly connected to the adjacent second rain shield.

[0008] Preferably, a connecting bar is fixedly connected to the side wall of the rotating bar, and the side wall of the connecting bar is provided with a plurality of first bolts.

[0009] Preferably, both sides of the rain cover are fixedly connected to connectors, both sides of the vehicle body are fixedly connected to connector seats, and the side walls of the connectors are provided with second bolts.

[0010] Preferably, a third rain shield is fixedly connected to both sides of the rain shield, and the side wall of the third rain shield is provided with an inclined surface.

[0011] Preferably, the inner wall of the rain cover has a through groove, and the bottom of the through groove has an inclined surface.

[0012] This utility model has the following beneficial effects:

[0013] 1. This device is equipped with a guiding mechanism. Through the rain cover, the first rain cover and the second rain cover, the inclined surfaces of the rain cover, the first rain cover and the second rain cover guide the airflow on both sides and above the vehicle body to flow to both sides. The airflow on both sides will not hit the corners of the box body, which will increase the resistance and thus greatly reduce the resistance of the semi-trailer.

[0014] 2. This device is equipped with a drive mechanism, which can move the second rain deflector along the first rain deflector by activating the electric push rod, thereby increasing the slope of the first and second rain deflectors and further reducing the airflow resistance to the vehicle body.

[0015] 3. This device is equipped with a connecting seat, which allows the rain cover to be disassembled, making it easy to replace damaged rain covers and thus improving the practicality of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the low wind resistance box semi-trailer body proposed in this utility model.

[0017] Figure 2 This is a side view of the low wind resistance box semi-trailer body proposed in this utility model.

[0018] Figure 3 for Figure 2 Enlarged view of the structure at point A;

[0019] Figure 4 for Figure 2 Enlarged view of the structure at point B;

[0020] Figure 5 This is another side view of the low-drag box semi-trailer body proposed in this utility model.

[0021] In the diagram: 1 Body, 2 First rain shield, 3 Second rain shield, 4 Rain cover, 5 Connector, 6 Third rain shield, 7 Mounting plate, 8 Connecting strip, 9 Electric push rod, 10 Rotating strip, 11 Mounting frame, 12 Drive shaft, 13 Motor. Detailed Implementation

[0022] 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.

[0023] Reference Figure 1-5The low-drag box semi-trailer body includes a body body 1. Two mounting frames 11 are fixedly connected to the side wall of the body body 1. The mounting frames 11 are equipped with a guiding mechanism for guiding airflow. The guiding mechanism is rotatably connected to the drive shaft 12 of the mounting frames 11. A rotating bar 10 is fixedly connected to the side wall of the drive shaft 12. A first rain shield 2 is provided on the side wall of the rotating bar 10. A second rain shield 3 is provided on the side wall of the first rain shield 2. A motor 13 is fixedly connected to the lower end of the mounting frame 11. The motor 13 and the output shaft of the drive shaft 12 (first gear and second gear) are respectively fixedly connected to the first gear and the second gear. The teeth and meshing details of the first gear and the second gear are shown. A rain cover 4 is provided on the upper end of the body body 1.

[0024] The first rain shield 2 has a drive mechanism on its side wall for driving the second rain shield 3 to rotate. The drive mechanism includes two electric push rods 9 fixedly connected to the side wall of the first rain shield 2. The output end of the electric push rod 9 is fixedly connected to a mounting plate 7, and the mounting plate 7 is fixedly connected to the adjacent second rain shield 3.

[0025] In this utility model, a connecting strip 8 is fixedly connected to the side wall of the rotating strip 10. The side wall of the connecting strip 8 is provided with multiple first bolts, so that the first rain shield 2 can be disassembled and the damaged first rain shield 2 can be replaced separately.

[0026] In this utility model, the rain cover 4 is fixedly connected to both sides of the side wall with connectors 5, and the body body 1 is fixedly connected to both sides of the side wall with connectors 5. The side wall of the connector 5 is provided with a second bolt. The connector is not shown in the figure. This allows the rain cover 4 to be disassembled, making it convenient to replace the damaged rain cover 4 or to disassemble it separately.

[0027] In this utility model, a third rain shield 6 is fixedly connected to both sides of the rain shield 4. The side wall of the third rain shield 6 is provided with an inclined surface, which can guide the airflow between the first rain shield 2 and the third rain shield 6.

[0028] In this utility model, the inner wall of the rain cover 4 is provided with a through groove, and the bottom of the through groove is provided with an inclined surface.

[0029] In use, a rain shield 4 is installed above the main body 1, and the slope of the rain shield 4 guides the airflow above the main body 1 as it moves forward. On both sides of the main body 1, the first rain shield 2 and the second rain shield 3 are used to guide the airflow to flow to both sides. The airflow on both sides will not hit the corners of the box, which will increase the resistance. When the main body 1 makes a sharp turn, the motor 13 can be started and the two first rain shields 2 can be stored behind the main body 1, thereby improving the practicality of the device.

[0030] Alternatively, the electric push rod 9 can be activated. The output end of the electric push rod 9 drives the second rain shield 3 to move along the first rain shield 2 through the mounting plate 7, thereby increasing the slope of the first rain shield 2 and the second rain shield 3, and further reducing the airflow resistance to the main body 1.

[0031] 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 practical concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low air resistance van semi-trailer body comprising a body main part (1), characterized in that, The side wall of the car body main body (1) is fixedly connected with two mounting frames (11), the mounting frame (11) is provided with a guide mechanism for guiding airflow, the guide mechanism is rotatably connected with the drive shaft (12) of the mounting frame (11), the drive shaft (12) is fixedly connected with a rotating strip (10), the rotating strip (10) is provided with a first rain shield (2), the first rain shield (2) is provided with a second rain shield (3), the lower end of the mounting frame (11) is fixedly connected with a motor (13), the upper end of the car body main body (1) is provided with a rain cover (4), the side wall of the first rain shield (2) is provided with a driving mechanism for driving the second rain shield (3) to rotate.

2. A low aerodynamic resistance van semi-trailer body according to claim 1, characterized in that, The driving mechanism comprises two electric push rods (9) fixedly connected with the side wall of the first rain shield (2), the output end of the electric push rod (9) is fixedly connected with a mounting plate (7), and the mounting plate (7) is fixedly connected with the adjacent second rain shield (3).

3. A low aerodynamic resistance van semi-trailer body according to claim 2, characterized in that, The side wall of the rotating strip (10) is fixedly connected with a connecting strip (8), and the side wall of the connecting strip (8) is provided with a plurality of first bolts.

4. A low-drag van semi-trailer body according to claim 3, characterized in that, The two side walls of the rain cover (4) are fixedly connected with connecting pieces (5), the two side walls of the car body main body (1) are fixedly connected with connecting seats, and the side wall of the connecting piece (5) is provided with a second bolt.

5. A low-drag van semi-trailer body according to claim 4, characterized in that, The two side walls of the rain cover (4) are fixedly connected with third rain shields (6), and the side wall of the third rain shield (6) is provided with an inclined surface.

6. A low-drag van semi-trailer body according to claim 5, characterized in that, The inner wall of the rain cover (4) is provided with a through groove, and the inner bottom of the through groove is provided with an inclined surface.

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