A semi-trailer with three openable sides

Abstract

The present application relates to a kind of three-face openable semitrailer, comprising: frame system, carriage being arranged on the frame system, and walking system being arranged below the frame system;The carriage comprises: front compartment system, rear compartment system, side compartment system being connected with the front compartment system and the rear compartment system respectively, roof system being arranged above the front compartment system, the rear compartment system and the side compartment system, and bottom plate being arranged at the bottom of the front compartment system, the rear compartment system and the side compartment system;In the direction of front compartment system to rear compartment system, side compartment system, roof system can be opened or closed reciprocally.Side compartment system and roof system can be controlled to open or close, so that the semitrailer compartment of the present application can be opened independently or combined in three directions, thereby facilitating the flexible loading and unloading of goods in the semitrailer compartment, without jacking up the carriage, greatly reducing the cost and difficulty of adding related equipment.

Description

Technical Field

[0001] This invention relates to the automotive field, and more particularly to a semi-trailer that can be opened from three sides. Background Technology

[0002] Currently, the mainstay of road transport, the semi-trailer with a stake bed, has limitations in the opening angle and range of its cargo doors during loading and unloading, resulting in low efficiency and severely restricting users' normal uptime. Since semi-trailers lack a roof, they generally require a tarpaulin for rain protection, often necessitating multiple people working together, which is time-consuming and labor-intensive. Furthermore, according to GB7258-2017, starting January 1, 2020, traditional three-axle flatbed and stake bed semi-trailers must be equipped with disc brake axles and air suspension. This is undoubtedly a heavy blow to traditional stake bed trucks; the addition of disc brakes and air suspension will significantly increase the purchase cost of three-axle stake bed trucks, causing a rapid decline in their market competitiveness. Summary of the Invention

[0003] The purpose of this invention is to provide a semi-trailer that can be opened from three sides, thereby improving the flexibility of unloading semi-trailers.

[0004] To achieve the above-mentioned objectives, the present invention provides a semi-trailer that can be opened from three sides, comprising: a frame system, a cargo box disposed on the frame system, and a running system disposed below the frame system;

[0005] The carriage includes: a front carriage system, a rear carriage system, a side carriage system connected to the front carriage system and the rear carriage system respectively, a roof system disposed above the front carriage system, the rear carriage system and the side carriage system, and a floor plate disposed at the bottom of the front carriage system, the rear carriage system and the side carriage system;

[0006] Along the direction from the front compartment system to the rear compartment system, the side compartment system and the roof system can be reciprocated to open or close.

[0007] According to one aspect of the invention, the canopy system is movable vertically up and down.

[0008] According to one aspect of the invention, the side compartment system includes: a side compartment support unit, and a side curtain unit connected to the side compartment support unit;

[0009] The side compartment support unit is connected to the front compartment system, the rear compartment system and the floor plate respectively;

[0010] The side curtain unit can be reciprocated to open or close on the side compartment support unit along the direction from the front compartment system to the rear compartment system.

[0011] According to one aspect of the invention, the canopy system is supported on the side support unit.

[0012] According to one aspect of the present invention, the side support unit includes: a first guide rail, a fixed column, a movable column, and a cross brace;

[0013] The fixed columns are respectively installed at opposite ends of the first guide rail and are connected to the front compartment system and the rear compartment system;

[0014] Along the length of the first guide rail, multiple movable columns are arranged side by side, and each column is connected to the first guide rail and the base plate respectively.

[0015] Along the vertical direction, multiple horizontal braces are arranged side by side between the fixed column and the movable column, and between adjacent movable columns.

[0016] According to one aspect of the invention, the movable column is slidably connected to the first guide rail and slidably or detachably connected to the base plate;

[0017] The cross brace is detachably mounted on the side support unit.

[0018] According to one aspect of the invention, the fixed column and the movable column are retractable columnar structures.

[0019] According to one aspect of the present invention, the fixed column and the movable column are provided with a telescopic structure.

[0020] According to one aspect of the present invention, the fixed column is provided with a telescopic structure, and the movable column is a telescopic columnar structure.

[0021] According to one aspect of the invention, at least one of the fixed column and the movable column is provided with a vertical lifting drive for adjusting the vertical position of the first guide rail.

[0022] According to one aspect of the invention, the side curtain unit includes: a first drive and a fabric curtain;

[0023] The first drive is used to drive the curtain to move back and forth along the first guide rail.

[0024] According to one aspect of the invention, the canopy system includes: a second drive and a foldable canopy;

[0025] The second drive is used to retract and extend the foldable canopy by moving it back and forth along the first guide rail.

[0026] According to one aspect of the invention, the canopy includes: a tarpaulin and support rods for supporting the tarpaulin;

[0027] Multiple support rods are provided at equal intervals along the length of the tarpaulin.

[0028] According to one aspect of the present invention, the front compartment system, rear compartment system, side compartment system, roof system, and floor can form a single compartment structure. Furthermore, the side compartment system and roof system can be controlled to open or close, allowing the semi-trailer compartment of this invention to be opened independently or in combination on three sides. This facilitates flexible loading and unloading of goods without requiring the compartment to be lifted, significantly reducing the cost and difficulty of adding related equipment.

[0029] According to one aspect of the present invention, the canopy system is configured to be movable and adjustable in position, which facilitates the maximum opening of the side compartments and makes it easier for manual and forklift loading and unloading of goods.

[0030] According to one aspect of the present invention, the side compartment support unit is an overall frame structure, achieving the effects of lightweighting and cost savings. Furthermore, the cross braces are detachable, allowing for the installation of different numbers of cross braces as needed, which facilitates flexible assembly of the entire side compartment support unit. In particular, in this design, the movable column is slidably connected to the first guide rail. This allows the movable column to be moved along the first guide rail to a position close to the fixed column after the cross braces are removed. This ensures that when the side compartment is opened, one side of the side compartment is not affected by the column, maximizing the side compartment opening and making the unloading process easier.

[0031] According to one aspect of the present invention, after loading, the uprights and cross braces form a rigid cargo-fixing mechanism, effectively preventing cargo from falling off.

[0032] According to one aspect of the present invention, a rubber rain guard strip is provided on the first guide rail, which can effectively prevent the goods from being eroded by rainwater during operation.

[0033] According to one aspect of the present invention, the side curtain unit adopts a customized wear-resistant side curtain, which is high in strength, corrosion-resistant and rainproof; moreover, both sides of the carriage can be printed with advertisements, resulting in a beautiful appearance and good advertising effect.

[0034] According to one aspect of the present invention, the semi-trailer of the present invention has a novel structure and unique shape, filling a gap in the domestic logistics and transportation industry, and is energy-saving and environmentally friendly. Attached Figure Description

[0035] Figure 1 This is a schematic diagram illustrating the structure of a three-sided opening semi-trailer according to an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram illustrating the structure of a ceiling system according to one embodiment of the present invention. Detailed Implementation

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0038] When describing embodiments of the present invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" express orientations or positional relationships based on the orientations or positional relationships shown in the relevant drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present invention.

[0039] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described in detail here, but the embodiments of the present invention are not limited to the following embodiments.

[0040] like Figure 1 As shown, according to one embodiment of the present invention, a semi-trailer that can be opened from three sides includes: a frame system 1, a cargo box 2 disposed on the frame system 1, and a running system 3 disposed below the frame system 1. In this embodiment, the cargo box 2 includes: a front cargo box system 21, a rear cargo box system 22, side cargo box systems 23 respectively connected to the front cargo box system 21 and the rear cargo box system 22, a roof system 24 disposed above the front cargo box system 21, the rear cargo box system 22, and the side cargo box systems 23, and a floor plate 25 disposed at the bottom of the front cargo box system 21, the rear cargo box system 22, and the side cargo box systems 23. In this embodiment, two side cargo box systems 23 are arranged opposite each other. In this embodiment, the side cargo box systems 23 and the roof system 24 can be reciprocated to open or close along the direction from the front cargo box system 21 to the rear cargo box system 22 (i.e., the horizontal direction).

[0041] With the above configuration, the front compartment system 21, rear compartment system 22, side compartment system 23, roof system 24, and floor 25 can form a single compartment structure. Simultaneously, the side compartment system 23 and roof system 24 can be controlled to open or close, allowing the semi-trailer compartment of this design to open independently or in combination on three sides. This facilitates flexible loading and unloading of goods without requiring the compartment to be raised, significantly reducing the cost and difficulty of adding related equipment.

[0042] like Figure 1As shown, according to one embodiment of the present invention, the canopy system 24 can move vertically up and down. By configuring the canopy system 24 to be adjustable in position vertically, it facilitates maximizing the opening of the side compartment, thereby simplifying manual and forklift loading and unloading of goods. In this embodiment, the vertical displacement of the canopy system 24 is 500 mm.

[0043] like Figure 1 As shown, according to one embodiment of the present invention, the side compartment system 23 includes: a side compartment support unit 231, and a side curtain unit 232 connected to the side compartment support unit 231. In this embodiment, the side compartment support unit 231 is connected to the front compartment system 21, the rear compartment system 22, and the floor plate 25, respectively; the side curtain unit 232 can be reciprocated to open or close on the side compartment support unit 231 along the direction from the front compartment system 21 to the rear compartment system 22.

[0044] like Figure 1 As shown, according to one embodiment of the present invention, the canopy system 24 is supported on the side support unit 231.

[0045] like Figure 1 As shown, according to one embodiment of the present invention, the side support unit 231 includes: a first guide rail 2311, fixed columns 2312, movable columns 2313, and cross braces 2314. In this embodiment, the fixed columns 2312 are respectively disposed at opposite ends of the first guide rail 2311 and connected to the front compartment system 21 and the rear compartment system 22; multiple movable columns 2313 are arranged side by side along the length direction of the first guide rail 2311, and are respectively connected to the first guide rail 2311 and the base plate 25. In this embodiment, multiple cross braces 2314 are arranged side by side along the vertical direction between the fixed columns 2312 and the movable columns 2313, and between adjacent movable columns 2313.

[0046] like Figure 1 As shown, according to one embodiment of the present invention, the movable column 2313 is slidably connected to the first guide rail 2311 and slidably or detachably connected to the base plate 25; the cross brace 2314 is detachably provided on the side support unit 231.

[0047] Through the above-described configuration, the side compartment support unit 231 of the present invention forms an overall frame structure, achieving the effects of lightweighting and cost savings. Furthermore, the cross braces 2314 are detachable, allowing for the installation of different numbers of cross braces according to varying needs, which facilitates flexible assembly of the entire side compartment support unit 231. In particular, in this design, the movable column 2313 is slidably connected to the first guide rail 2311. This allows the movable column to be moved along the first guide rail to a position close to the fixed column after the cross braces are removed. Consequently, when the side compartment is opened, one side of the side compartment is not affected by the column, maximizing the side compartment opening and making the unloading process easier.

[0048] like Figure 1 As shown, according to one embodiment of the present invention, the fixed column 2312 and the movable column 2313 are telescopic columnar structures. In this embodiment, the telescopic ends of the fixed column 2312 and the movable column 2313 are interconnected with the first guide rail 2311. In this embodiment, the fixed column 2312 and the movable column 2313 are configured to have multiple mutually sliding parts to achieve their telescopic function.

[0049] In this embodiment, at least one of the fixed column 2312 and the movable column 2313 is equipped with a vertical lifting drive for adjusting the vertical position of the first guide rail 2311. In this embodiment, the vertical lifting drive can be a screw-nut pair structure, a hydraulic cylinder, or an electric drive. In this embodiment, the vertical lifting drive is mounted on the fixed column 2312 and connected to the telescopic end of the fixed column 2312. Under the driving action of the vertical lifting drive, the extension and retraction of the telescopic end can be realized.

[0050] With the above configuration, both the fixed and movable columns are designed as retractable columnar structures, which facilitates the vertical adjustment and support of the roof structure. Furthermore, designing the columns as retractable columnar structures provides high strength, which is beneficial in ensuring that the side enclosure system does not deform.

[0051] like Figure 1 As shown, according to one embodiment of the present invention, a telescopic structure is provided on the fixed column 2312 and the movable column 2313. In this embodiment, the telescopic structure is a linear displacement structure, which can be adjusted along a linear direction to change its overall length and achieve telescopic movement. In this embodiment, the telescopic structure is installed with both the fixed column 2312 and the movable column 2313 using a detachable connection method, which facilitates the replacement and maintenance of the telescopic structure.

[0052] In this embodiment, at least one of the fixed column 2312 and the movable column 2313 is equipped with a vertical lifting drive for adjusting the vertical position of the first guide rail 2311. In this embodiment, the vertical lifting drive can be a screw-nut pair structure, a hydraulic cylinder, or an electric drive. In this embodiment, the vertical lifting drive is mounted on the fixed column 2312 and is connected to the telescopic structure on the fixed column 2312. Under the driving action of the vertical lifting drive, the extension and retraction of the telescopic structure can be realized.

[0053] With the above-described configuration, both the fixed and movable columns are equipped with telescopic structures, which facilitates the vertical adjustment and support of the roof structure. Furthermore, the separately designed telescopic structures allow for easy replacement and maintenance after prolonged use, thus ensuring the lifespan of the columns and the stability of the entire side support unit.

[0054] like Figure 1 As shown, according to one embodiment of the present invention, a telescopic structure is provided on the fixed column 2312, and the movable column 2313 is a telescopic columnar structure. In this embodiment, the telescopic structure is a linear displacement structure, which can be adjusted along a linear direction to change its overall length and achieve telescopic movement. The movable column 2313 is configured with multiple mutually sliding parts to achieve its telescopic function.

[0055] In this embodiment, at least one of the fixed column 2312 and the movable column 2313 is equipped with a vertical lifting drive for adjusting the vertical position of the first guide rail 2311. In this embodiment, the vertical lifting drive can be a screw-nut pair structure, a hydraulic cylinder, or an electric drive. In this embodiment, the vertical lifting drive is mounted on the fixed column 2312 and is connected to the telescopic structure on the fixed column 2312. Under the driving action of the vertical lifting drive, the extension and retraction of the telescopic structure can be realized.

[0056] With the above configuration, since the fixed columns play the primary vertical support role, the telescopic structure on them allows for easy replacement and maintenance after prolonged use, which is beneficial for ensuring the service life of the fixed columns and the stability of the entire side compartment support unit. The movable columns, designed as telescopic columnar structures, possess high strength, which helps prevent deformation of the side compartment system. This configuration achieves a reasonable allocation of telescopic methods for the fixed and movable columns, maximizing the functionality of the entire side compartment system and reducing production costs.

[0057] like Figure 1 As shown, according to one embodiment of the present invention, the side curtain unit 232 includes: a first drive and a curtain 2321. In this embodiment, the first drive is used to drive the curtain 2321 to reciprocate along the first guide rail 2311 for raising and lowering.

[0058] Combination Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, the canopy system 24 includes a second drive 241 and a foldable canopy 242. In this embodiment, the second drive 241 is used to drive the foldable canopy 242 to reciprocate along a first guide rail 2311 for raising and lowering. In this embodiment, the first guide rail 2311 may be provided with two sliding connecting parts, one of which is connected to the first drive on the side curtain unit 232, and the other sliding connecting part is connected to the second drive 241.

[0059] Combination Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, the canopy 242 includes: a tarpaulin 2421 and support rods 2422 for supporting the tarpaulin. In this embodiment, a plurality of support rods 2422 are provided at equal intervals along the length direction of the tarpaulin 2421.

[0060] The above settings provide stable support for the tarpaulin, ensuring its orderly stacking during deployment and retraction, which is beneficial to the stable operation of the entire canopy.

[0061] like Figure 2 As shown, according to one embodiment of the present invention, the canopy 242 further includes a locking assembly 2423. In this embodiment, the locking assembly 2423 is located entirely at one end of the canopy 242 near the rear compartment system. Specifically, the locking assembly 2423 includes a fastening plate 2423a, a frame structure 2423b, and a damping element 2423c. The frame structure 2423b includes a sliding bracket 2423b1, a connecting rod 2423b2, and a swing element 2423b3. In this embodiment, the sliding bracket 2423b1 is supported on the sliding connection portion of the first guide rail by pulleys, so that it can also slide on the first guide rail.

[0062] like Figure 2As shown, according to one embodiment of the present invention, two sliding frames 2423b1 can be arranged opposite each other on the roof 242 as needed. In this embodiment, the connecting rod 2423b2 is fixedly connected to the sliding frame 2423b1. Since its main function is to connect the sliding frame 2423b1 so that it slides synchronously, one or two connecting rods 2423b2 are sufficient, but more can be added as needed. In this embodiment, two connecting rods 2423b2 are provided. In this embodiment, the second drive is connected to the two sliding frames 2423b1. One end of the swing member 2423b3 is hinged to the sliding frame 2423b1, so that it can swing around the hinge point. In this invention, the swing plane of the swing member 2423b3 is parallel to the first guide rail. The fastening plate 2423a is fixedly connected to the free end of the swing member 2423b3. Its installation form is such that when the swing member 2423b3 swings forward to the horizontal, it can be perpendicular to the first guide rail, thereby fastening to the rear compartment system. The damping element 2423c assists the locking plate 2423a in completing the locking function. Specifically, its two ends are hinged to the sliding frame 2423b1 and the swinging element 2423b3, respectively. Thus, after locking, its damping effect prevents the entire locking assembly 2423 from loosening. In this embodiment, the canopy 242 can be opened and closed manually. Therefore, for ease of operation, a handle 2424 is also provided. The canopy is retracted via the second drive, and unfolded via the handle. Figure 2 As shown, the handle 2424 is movably disposed on the outside of the sliding frame 2423b1, so that the operator can open and close the roof by pulling the handle 2424 forward and backward.

[0063] like Figure 2 As shown, according to one embodiment of the present invention, the canopy 242 further includes a folding support 2425 disposed between adjacent support rods 2422 and connected to the tarpaulin 2421. In this embodiment, the folding support 2425 includes a first folding plate 2345a and a second folding plate 2425b. The first folding plate 2345a and the second folding plate 2425b are hinged to each other, and the two ends of the first folding plate 2345a and the second folding plate 2425b that are far apart from each other are respectively hinged to adjacent support rods 2422.

[0064] like Figure 2 As shown, according to one embodiment of the present invention, along the axial direction of the support rod 2422, folding supports 2425 are respectively provided at opposite ends of the support rod 2422.

[0065] By setting up folding supports, the folding supports can guide the stacking of the tarpaulin when it is being put away or taken down, so that the tarpaulin is stacked in an orderly and neat manner, and damage and leakage are avoided.

[0066] The above description is merely an example of a specific solution of the present invention. For any devices and structures not described in detail herein, it should be understood that they are implemented using common devices and methods already available in the art.

[0067] The above description is merely one embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A semi-trailer that can be opened from three sides, characterized in that, include: A frame system (1), a carriage (2) mounted on the frame system (1), and a running system (3) mounted below the frame system (1); The carriage (2) includes: a front carriage system (21), a rear carriage system (22), a side carriage system (23) connected to the front carriage system (21) and the rear carriage system (22) respectively, a roof system (24) disposed above the front carriage system (21), the rear carriage system (22) and the side carriage system (23), and a floor plate (25) disposed at the bottom of the front carriage system (21), the rear carriage system (22) and the side carriage system (23); Along the direction from the front compartment system (21) to the rear compartment system (22), the side compartment system (23) and the roof system (24) can be opened or closed repeatedly, and the roof system (24) can move up and down in the vertical direction; The side compartment system (23) includes: a side compartment support unit (231) and a side curtain unit (232) connected to the side compartment support unit (231); The side support unit (231) includes: a first guide rail (2311), a fixed column (2312), a movable column (2313), and a cross brace (2314); The movable column (2313) is slidably connected to the first guide rail (2311) and slidably or detachably connected to the base plate (25); The cross brace (2314) is detachably mounted on the side support unit (231); The canopy system (24) includes: a second drive mechanism (241) and a foldable canopy (242); The second drive mechanism (241) is used to drive the foldable canopy (242) to reciprocate along the first guide rail (2311) for retraction and extension; The canopy (242) further includes a locking assembly (2423), which includes a fastening plate (2423a) and a frame structure (2423b). The frame structure (2423b) includes a sliding frame (2423b1), a connecting rod (2423b2), and a swing member (2423b3). The sliding frame (2423b1) is supported on the sliding connection part of the first guide rail by pulleys. Two sliding frames (2423b1) are arranged opposite each other on the roof (242). The connecting rod (2423b2) is fixedly connected to the sliding frame (2423b1). The second drive mechanism (241) is connected to the sliding frame (2423b1). One end of the swing member (2423b3) is hinged to the sliding frame (2423b1), so that it can swing around the hinge point. The fastening plate (2423a) is fixedly connected to the free end of the swing member (2423b3). When the swing member (2423b3) swings forward to the horizontal, it can be perpendicular to the first guide rail, so as to fasten to the rear compartment system. It also includes a damping element (2423c), the two ends of which are hinged to the sliding frame (2423b1) and the swinging element (2423b3) respectively. After being fastened, its damping effect can be used to prevent the entire locking assembly (2423) from loosening. The canopy (242) includes: a tarpaulin (2421) and a support rod (2422) for supporting the tarpaulin; The canopy (242) further includes: a folding support (2425) disposed between adjacent support rods (2422) and connected to the tarpaulin (2421). The folding support (2425) includes a first folding plate (2345a) and a second folding plate (2425b). The first folding plate (2345a) and the second folding plate (2425b) are hinged to each other. The two ends of the first folding plate (2345a) and the second folding plate (2425b) that are far apart from each other are respectively hinged to the adjacent support rods (2422).

2. The three-sided opening semi-trailer according to claim 1, characterized in that, The side compartment support unit (231) is connected to the front compartment system (21), the rear compartment system (22) and the floor plate (25) respectively; The side curtain unit (232) can be reciprocated on the side support unit (231) along the direction from the front compartment system (21) to the rear compartment system (22).

3. The three-sided opening semi-trailer according to claim 2, characterized in that, The canopy system (24) is supported on the side support unit (231).

4. The three-sided opening semi-trailer according to claim 2 or 3, characterized in that, The fixed column (2312) is respectively provided at both ends opposite to the first guide rail (2311) and is connected to the front compartment system (21) and the rear compartment system (22); Along the length of the first guide rail (2311), multiple movable columns (2313) are arranged side by side, and they are respectively connected to the first guide rail (2311) and the base plate (25); Along the vertical direction, multiple horizontal braces (2314) are arranged side by side between the fixed column (2312) and the movable column (2313), and between adjacent movable columns (2313).

5. The three-sided opening semi-trailer according to claim 1, characterized in that, The fixed column (2312) and the movable column (2313) are retractable columnar structures.

6. The three-sided opening semi-trailer according to claim 1, characterized in that, The fixed column (2312) and the movable column (2313) are equipped with telescopic structures.

7. The three-sided opening semi-trailer according to claim 1, characterized in that, The fixed column (2312) is provided with a telescopic structure, and the movable column (2313) is a telescopic columnar structure.

8. The three-sided opening semi-trailer according to any one of claims 5 to 7, characterized in that, At least one of the fixed column (2312) and the movable column (2313) is provided with a vertical lifting drive mechanism for adjusting the vertical position of the first guide rail (2311).

9. The three-sided opening semi-trailer according to claim 4, characterized in that, The side curtain unit (232) includes: a first drive mechanism and a curtain (2321); The first driving mechanism is used to drive the curtain (2321) to move back and forth along the first guide rail (2311).

10. The three-sided opening semi-trailer according to claim 1, characterized in that, Multiple support rods (2422) are provided at equal intervals along the length of the tarpaulin (2421).

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