Side curtain van type semitrailer

Abstract

The utility model relates to the technical field of semitrailers, in particular to a side curtain van type semitrailer which comprises a chassis and a bearing mechanism, the bearing mechanism comprises two side frames, two side curtain frameworks, two motors, a compartment, two compartment doors and two flow guide assemblies, flow guide plates in the flow guide assemblies are popped out under the action of corresponding electric telescopic rods, and the side curtain frameworks are arranged on the side frames. When downward friction is increased, wind resistance is reduced, flowing of wind power to wheels is reduced, the side curtain frameworks and the corresponding motors are matched to open and close the curtain cloth, and on the premise that recycling and releasing of the curtain cloth are not affected, the problems that in the running process of a vehicle, wind resistance is large, a compartment is not designed in a streamline mode, and oil consumption is likely to be increased during long-distance transportation are solved.

Description

Technical Field

[0001] This utility model relates to the field of semi-trailer technology, and in particular to a side curtain box type semi-trailer. Background Technology

[0002] In some logistics transfer sites, the loading and unloading time of transport vehicles is too long, and the upper body of the vehicle is too bulky. The existing cargo compartment is covered with tarpaulin, but the tarpaulin itself has no support and is only fixed to the cargo compartment by the two sides of the tarpaulin. The fixing is cumbersome and the safety is low. In addition, the waterproof effect is poor. Moreover, the tarpaulin usually needs to be pulled manually to open. For the long cargo compartment, a lot of manpower is required, and the degree of automation is low.

[0003] In the prior art, patent (CN206841282U) proposes a side curtain box semi-trailer, including a chassis, a box body, a sliding side curtain mechanism, and a motor. The sliding side curtain mechanism includes annular tracks arranged around the left and right sides of the box body. Grooved wheels are respectively set at the corners of the annular tracks, and steel wire ropes are wound on the grooved wheels. The grooved wheel at one corner of the bottom of the annular track is fixedly connected to the motor drive shaft. A side curtain frame is set inside the annular track. The side curtain frame includes a vertical rod. The upper and lower ends of the vertical rod are respectively fixed with a rotisserie. The rotisserie cooperates with the annular track. One end of the vertical rod on one side of the box body is fixed to the steel wire rope. Track fixing frames are symmetrically set on the upper and lower sides of the annular track. An integrated water baffle is set on the outside of the track fixing frames. The overall structure of this side curtain box semi-trailer is stable, the fixing is simple, the waterproof effect is good, and the automation level is high, making it suitable for widespread application.

[0004] However, in the aforementioned existing technologies, the vehicles experience greater wind resistance during operation, and the cargo box is not streamlined, which can lead to increased fuel consumption over long distances. Summary of the Invention

[0005] The purpose of this utility model is to provide a side curtain box semi-trailer, which solves the problems of high wind resistance during vehicle operation, non-streamlined body design, and increased fuel consumption during long-distance transportation in the prior art.

[0006] To achieve the above objectives, this utility model provides a side curtain box semi-trailer, including a chassis and a carrying mechanism. The carrying mechanism includes two side frames, two side curtain frames, two motors, a cargo box, two doors, and two flow guide components. The two flow guide components are fixedly connected to the chassis and are located on both sides of the chassis. The two doors are rotatably connected to the cargo box and are located on one side of the cargo box. The cargo box is fixedly connected to the chassis and is located above the chassis. Each motor is fixedly connected to a corresponding side frame and is located on one side of the corresponding side frame. Each side curtain frame is slidably connected to a corresponding side frame and is located inside the corresponding side frame. The two side frames are fixedly connected to the cargo box and are located on both sides of the cargo box.

[0007] The carriage includes a body, multiple fixed rods, and a roof plate. The roof plate is fixedly connected to the body and located above the body. Each fixed rod is fixedly connected to the body and located on both sides of the body. The body is fixedly connected to the chassis and located above the chassis.

[0008] Each of the compartment doors includes a door body and two pivots. The two pivots are fixedly connected to the compartment body and located on one side of the compartment body. The door body is rotatably connected to the two pivots and located on one side of the two pivots.

[0009] Each of the flow guiding components includes a mounting plate, an electric telescopic rod, and a flow guiding plate. The flow guiding plate is slidably connected to the electric telescopic rod and is located at one end of the electric telescopic rod. The electric telescopic rod is fixedly connected to the mounting plate and is located inside the mounting plate. The mounting plate is fixedly connected to the chassis and is located on one side of the chassis.

[0010] The chassis includes a base plate, a support seat, and multiple wheels. Each wheel is rotatably connected to the base plate and is located on both sides of the base plate. The support seat is fixedly connected to the base plate and is located below the base plate. The base plate is fixedly connected to the body and is located below the body.

[0011] This utility model discloses a side curtain box semi-trailer. The guide plate in the air guiding assembly pops out under the action of the corresponding electric telescopic rod, increasing downward friction while reducing wind resistance and reducing the flow of wind towards the wheels. In conjunction with the side curtain frame and the corresponding motor to open and close the curtain, the problem of high wind resistance during vehicle operation and the non-streamlined design of the box body, which easily leads to increased fuel consumption during long-distance transportation, is solved without affecting the curtain retraction and release. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of a side curtain box semi-trailer according to this utility model.

[0014] Figure 2 This is a front view of a side curtain box semi-trailer according to this utility model.

[0015] Figure 3 This is the utility model Figure 2 A sectional view along line AA.

[0016] Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point B.

[0017] 101-Chassis, 102-Bearing mechanism, 103-Side frame, 104-Side curtain frame, 105-Motor, 106-Carriage, 107-Carriage door, 108-Driving component, 109-Carriage body, 110-Fixing rod, 111-Top plate, 112-Door body, 113-Rotating shaft, 114-Mounting plate, 115-Electric telescopic rod, 116-Driving plate, 117-Bottom plate, 118-Support seat, 119-Wheel. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Please see Figures 1-4 ,in Figure 1 This is a schematic diagram of the overall structure of a side curtain box semi-trailer according to this utility model. Figure 2 This is a front view of a side curtain box semi-trailer according to this utility model. Figure 3 This is the utility model Figure 2 AA-line sectional view, Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point B.

[0020] This utility model provides a side curtain box semi-trailer, including a chassis 101 and a carrying mechanism 102. The carrying mechanism 102 includes two side frames 103, two side curtain frames 104, two motors 105, a cargo box 106, two doors 107, and two flow guiding components 108. The cargo box 106 includes a body 109, multiple fixing rods 110, and a top plate 111. Each door 107 includes a door body 112 and two rotating shafts 113. Each flow guiding component 108 includes a mounting plate 114, an electric telescopic rod 115, and a flow guiding plate 116. The chassis 101 includes a bottom plate 117, a support seat 118, and multiple wheels 119.

[0021] In this specific embodiment, both of the flow guiding components 108 are fixedly connected to the chassis 101, both of the doors 107 are rotatably connected to the carriage 106 and located on one side of the carriage 106, the carriage 106 is fixedly connected to the chassis 101, each of the motors 105 is fixedly connected to the corresponding side frame 103, each of the side curtain frames 104 is slidably connected to the corresponding side frame 103, both of the side frames 103 are fixedly connected to the carriage 106, the top plate 111 is fixedly connected to the carriage body 109, each of the fixing rods 110 is fixedly connected to the carriage body 109, the carriage body 109 is fixedly connected to the chassis 101, both of the rotating shafts 113 are fixedly connected to the carriage body 109, the door 112 is rotatably connected to the two rotating shafts 113, and the flow guiding plate 116 is connected to the... The electric telescopic rod 115 is slidably connected, and the electric telescopic rod 115 is fixedly connected to the mounting plate 114. The mounting plate 114 is fixedly connected to the chassis 101. Each wheel 119 is rotatably connected to the bottom plate 117. The support seat 118 is fixedly connected to the bottom plate 117. The bottom plate 117 is fixedly connected to the body 109. The guide plate 116 in the currently installed flow guide assembly 108 pops out under the action of the corresponding electric telescopic rod 115, increasing downward friction while reducing wind resistance and reducing the flow of wind towards the wheel 119. In conjunction with the side curtain frame 104 and the corresponding motor 105 to open and close the curtain, the problem of high wind resistance during vehicle operation and the non-streamlined design of the body 109, which easily leads to increased fuel consumption during long-distance transportation, is solved without affecting the curtain retraction and release.

[0022] The two airflow guiding components 108 are located on both sides of the chassis 101, the two doors 107 are located on one side of the carriage 106, the carriage 106 is located above the chassis 101, each motor 105 is located on one side of the corresponding side frame 103, each side curtain frame 104 is located on the inner side of the corresponding side frame 103, the two side frames 103 are located on both sides of the carriage 106, and the top plate 111 has multiple grooves for rainwater and flowing air to pass through, reducing the friction on the top of the carriage 109 and reducing energy consumption.

[0023] Secondly, the top plate 111 is located above the body 109, and each of the fixing rods 110 is located on both sides of the body 109. The body 109 is located above the chassis 101, and both of the rotating shafts 113 are located on one side of the body 109. The door 112 is located on one side of the two rotating shafts 113. The fixing rods 110 on both sides of the body 109 mainly serve to prevent transported goods from falling and to support the body 109. The two doors 112 are common semi-trailer doors in the market and rotate through the corresponding rotating shafts 113. The inner side of the mounting plate 114 has a groove for placing the guide plate 116, and the guide plate 116 is rotatably connected to the corresponding mounting plate 114. After the electric telescopic rod 115 is started, it also always remains rotatably connected to the corresponding mounting plate 114.

[0024] Meanwhile, the guide plate 116 is located at one end of the electric telescopic rod 115, the electric telescopic rod 115 is located inside the mounting plate 114, the mounting plate 114 is located on one side of the chassis 101, each wheel 119 is located on both sides of the bottom plate 117, the support seat 118 is located below the bottom plate 117, and the bottom plate 117 is located below the body 109. It should be noted that the side curtain frame 104, the side frame 103, and the corresponding motor 105 in this application are all existing side curtain sliding systems. Driven by the motor 105, the corresponding side curtain frame 104 and the steel wires on the frame are driven. The ropes allow for the expansion and contraction of the curtain. During vehicle operation, the two electric telescopic rods 115 need to be activated to eject the corresponding guide plates 116 from the inside of the mounting plate 114. Together with the top plate 111 on the body 109, they form a drag-reducing system to reduce wind friction. When the guide plates 116 are opened, they generate downward and lateral airflow. On the one hand, this increases friction with the ground and reduces air resistance. On the other hand, it also directly guides the air above the body 109 to the sides of the body 109, preventing the airflow from colliding with the wheels 119 under the bottom plate 117 and reducing the power required by the wheels 119.

[0025] In this embodiment, the top plate 111 has multiple grooves above it for rainwater and flowing air to pass through, reducing friction on the top of the compartment 109 and reducing energy consumption. The fixing rods 110 on both sides of the compartment 109 mainly serve to protect transported goods from falling and support the compartment 109. The two doors 112 are common semi-trailer doors on the market, which rotate via the corresponding pivot 113. The inner side of the mounting plate 114 has a groove for placing the guide plate 116, and the guide plate 116 is rotatably connected to the corresponding mounting plate 114. After the electric telescopic rod 115 is started, it also remains rotatably connected to the corresponding mounting plate 114. It should be noted that the side curtain frame 104, the side frame 103, and the corresponding motor 105 in this application are all existing. The side curtain sliding system in the technology is driven by the motor 105, which drives the corresponding side curtain frame 104 and the steel wire rope on the frame, thereby realizing the expansion and contraction of the curtain. During vehicle operation, the two electric telescopic rods 115 need to be activated to pop out the corresponding deflector 116 from the inside of the mounting plate 114. Together with the top plate 111 on the body 109, they form a drag reduction system to reduce wind friction. When the deflector 116 is opened, it generates downward and lateral airflow. On the one hand, it increases friction with the ground and reduces air resistance. On the other hand, it also directly guides the air above the body 109 to the sides of the body 109, avoiding airflow from colliding with the wheels 119 under the bottom plate 117 and reducing the power required by the wheels 119.

[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A side curtain box semi-trailer, comprising a chassis, characterized in that, It also includes a carrying mechanism, which comprises two side frames, two side curtain frames, two motors, a carriage, two doors, and two flow guiding components. The two flow guiding components are fixedly connected to the chassis and are located on both sides of the chassis. The two doors are rotatably connected to the carriage and are located on one side of the carriage. The carriage is fixedly connected to the chassis and is located above the chassis. Each motor is fixedly connected to the corresponding side frame and is located on one side of the corresponding side frame. Each side curtain frame is slidably connected to the corresponding side frame and is located inside the corresponding side frame. The two side frames are fixedly connected to the carriage and are located on both sides of the carriage.

2. The side-curtain semi-trailer as described in claim 1, characterized in that, The carriage includes a body, multiple fixed rods, and a roof plate. The roof plate is fixedly connected to the body and located above the body. Each fixed rod is fixedly connected to the body and located on both sides of the body. The body is fixedly connected to the chassis and located above the chassis.

3. The side-curtain semi-trailer as described in claim 2, characterized in that, Each of the aforementioned doors includes a door body and two pivots. The two pivots are fixedly connected to the door body and located on one side of the door body. The door body is rotatably connected to the two pivots and located on one side of the two pivots.

4. The side-curtain semi-trailer as described in claim 3, characterized in that, Each of the aforementioned flow guiding components includes a mounting plate, an electric telescopic rod, and a flow guiding plate. The flow guiding plate is slidably connected to the electric telescopic rod and located at one end of the electric telescopic rod. The electric telescopic rod is fixedly connected to the mounting plate and located inside the mounting plate. The mounting plate is fixedly connected to the chassis and located on one side of the chassis.

5. The side-curtain semi-trailer as described in claim 4, characterized in that, The chassis includes a base plate, a support seat, and multiple wheels. Each wheel is rotatably connected to the base plate and is located on both sides of the base plate. The support seat is fixedly connected to the base plate and is located below the base plate. The base plate is fixedly connected to the body and is located below the body.

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