Flatbed self-unloading semi-trailer

Abstract

The utility model relates to a kind of flatbed dump semi-trailer in the field of semi-trailer, including frame, chassis for the frame improves support and the load platform for placing goods, frame includes traction part and load-bearing part, load platform is provided with rear turnover subassembly and side turnover subassembly between load-bearing part, side turnover subassembly includes side turnover support, side turnover hydraulic cylinder and side turnover hinge seat, the edge of side turnover support is rotatably connected with the side wall of load-bearing part by side turnover hinge seat, the bottom end of side turnover support is connected with the surface of load-bearing part by side turnover hydraulic cylinder, rear turnover subassembly includes rear turnover support, rear turnover hydraulic cylinder and rear turnover hinge seat, the end of rear turnover support away from traction part is rotatably connected with side turnover support by rear turnover hinge seat, the end of rear turnover support close to traction part is connected with side turnover support by rear turnover hydraulic cylinder, load platform is fixedly installed on the surface of rear turnover support, the mechanical linkage of two unloading modes is realized, and combined unloading angle can also be formed by the collaborative control of hydraulic system.

Description

Technical Field

[0001] This utility model relates to the field of semi-trailers, and in particular to a flatbed self-dumping semi-trailer. Background Technology

[0002] Flatbed semi-trailers, as one of the core pieces of equipment in highway logistics transportation, are widely used for medium- and long-distance transportation of bulk goods such as building materials, minerals, and equipment due to their large load capacity and high versatility. Traditional flatbed semi-trailers typically consist of a frame, chassis, and cargo platform. The cargo platform is a fixed structure, requiring external lifting equipment or manual assistance for unloading, resulting in low operating efficiency and poor site adaptability. To improve autonomous unloading capabilities, the industry has gradually developed liftable self-unloading flatbed semi-trailers, which use a hydraulic system to tilt the cargo platform to unload materials.

[0003] Most existing dump flatbed semi-trailers use a single rear-tipping or side-tipping structure, which has significant functional limitations. For example, vehicles equipped only with a rear-tipping structure cannot operate effectively in narrow spaces or side-tipping scenarios; while models with only a side-tipping function cannot meet the needs of regular rear-tipping unloading, causing users to have to repeatedly purchase different models, resulting in poor economic efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a flatbed self-dumping semi-trailer, which can effectively solve the technical problem that it can only perform single rear-end or side-end tipping.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A flatbed dump semi-trailer includes a frame, a chassis for supporting the frame, and a cargo platform for placing goods. The frame includes a traction unit and a load-bearing unit. A traction pin is installed at the bottom end of the traction unit. The cargo platform is installed on the upper end of the load-bearing unit. A rear-tipping assembly and a side-tipping assembly are provided between the cargo platform and the load-bearing unit. The side-tipping assembly includes a side-tipping bracket, a side-tipping hydraulic cylinder, and a side-tipping hinge seat. The edge of the side-tipping bracket is rotatably connected to the side wall of the load-bearing unit through the side-tipping hinge seat. The bottom end of the side-tipping bracket is connected to the load-bearing unit through the side-tipping hydraulic cylinder. The surface connection of the rear tilting assembly includes a rear tilting bracket, a rear tilting hydraulic cylinder, and a rear tilting hinge seat. The end of the rear tilting bracket away from the traction unit is rotatably connected to the side tilting bracket through the rear tilting hinge seat. The end of the rear tilting bracket near the traction unit is connected to the side tilting bracket through the rear tilting hydraulic cylinder. The cargo platform is fixedly installed on the surface of the rear tilting bracket. When the side tilting hydraulic cylinder extends, the side tilting bracket tilts relative to the vehicle frame with the side tilting hinge seat as the fulcrum. When the rear tilting hydraulic cylinder extends, the rear tilting bracket tilts backward relative to the side tilting bracket with the rear tilting hinge seat as the fulcrum.

[0007] Furthermore, both the rear-tilt hinge seat and the side-tilt hinge seat are equipped with angle sensors. The angle sensors are used to detect the tilting angle of the side-tilt bracket and the rear-tilt bracket, and the angle sensors can be connected to the vehicle control system.

[0008] Furthermore, the surface of the cargo platform is provided with anti-slip textures, which are continuously distributed in a wave-like pattern.

[0009] Furthermore, the surface of the cargo platform is provided with lock holes, which are used to install twist locks to lock the containers when transporting them.

[0010] Furthermore, an auxiliary support leg is provided at the bottom of the bearing part near the traction part. The auxiliary support leg includes a hydraulic telescopic rod and a grounding pad.

[0011] Furthermore, the edge of the cargo platform is provided with folding baffles, which are connected to the side wall of the cargo platform via rotating hinges, and L-shaped locks are provided between the folding baffles.

[0012] Compared with existing technologies, the advantages of this utility model are as follows: the rear-tipping assembly drives the rear-tipping bracket to rotate around the hinge seat through the rear-tipping hydraulic cylinder, realizing conventional rear-tipping unloading; the side-tipping assembly pushes the side-tipping bracket to rotate around the side wall hinge through the side-tipping hydraulic cylinder, meeting the requirements for lateral tilting unloading; the rear-tipping assembly is mounted on the side-tipping bracket to form a two-stage tilting mechanism. This achieves mechanical linkage between the two unloading modes and can also form combined unloading angles through the coordinated control of the hydraulic system, effectively improving the thoroughness of material tipping. It is particularly suitable for unloading viscous materials and realizes multi-dimensional tipping functions for the cargo platform. It can meet the needs of conventional rear-tipping unloading and adapt to narrow or complex terrain operating scenarios through side tipping, significantly improving the vehicle's adaptability to diverse loading and unloading environments and expanding its application scope. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the cargo platform in this utility model;

[0015] Figure 3 This is a schematic diagram of the rearward flipping of this utility model;

[0016] Figure 4 This is a schematic diagram of the side-tipping mechanism of this utility model;

[0017] The numbers in the diagram are: 1-Chassis, 101-Traction unit, 102-Bearing unit, 2-Undercarriage, 3-Cargo platform, 4-Traction pin, 5-Auxiliary support leg, 6-Side-tipping bracket, 7-Side-tipping hydraulic cylinder, 8-Side-tipping hinge seat, 9-Rear-tipping bracket, 10-Rear-tipping hydraulic cylinder, 11-Rear-tipping hinge seat, 12-Anti-slip texture, 13-Lock hole. Detailed Implementation

[0018] 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.

[0019] The following is combined Figures 1-4 A detailed description of a flatbed self-unloading semi-trailer according to this utility model is provided:

[0020] A flatbed dump semi-trailer includes a frame 1, a chassis 2 for supporting the frame 1, and a cargo platform 3 for placing goods. The frame 1 includes a traction unit 101 and a load-bearing unit 102. A traction pin 4 is installed at the bottom of the traction unit 101. An auxiliary support leg 5 is provided near the bottom of the load-bearing unit 102 near the traction unit 101. The auxiliary support leg 5 includes a hydraulic telescopic rod and a grounding pad. During unloading operations, it can be deployed and the grounding pad is used to increase the contact area with the ground, share the load of the frame 1, and prevent the vehicle's center of gravity from shifting or the frame 1 from deformation due to unilateral pressure from the hydraulic cylinder. In particular, it ensures the overall stability during side-tipping unloading and is adaptable to complex terrains such as soft soil and slopes. The cargo platform 3 is installed on the upper end of the bearing unit 102. A rear-tilting assembly and a side-tilting assembly are provided between the cargo platform 3 and the bearing unit 102. The side-tilting assembly includes a side-tilting bracket 6, a side-tilting hydraulic cylinder 7, and a side-tilting hinge seat 8. The edge of the side-tilting bracket 6 is rotatably connected to the side wall of the bearing unit 102 via the side-tilting hinge seat 8. The bottom end of the side-tilting bracket 6 is connected to the surface of the bearing unit 102 via the side-tilting hydraulic cylinder 7. The rear-tilting assembly includes a rear-tilting bracket 9, a rear-tilting hydraulic cylinder 10, and a rear-tilting hinge seat 11. The end of the rear tilting bracket 9 away from the traction unit 101 is rotatably connected to the side tilting bracket 6 via the rear tilting hinge seat 11. The end of the rear tilting bracket 9 near the traction unit 101 is connected to the side tilting bracket 6 via the rear tilting hydraulic cylinder 10. The cargo platform 3 is fixedly installed on the surface of the rear tilting bracket 9. When the side tilting hydraulic cylinder 7 extends, the side tilting bracket 6 tilts relative to the vehicle frame 1 with the side tilting hinge seat 8 as the fulcrum. When the rear tilting hydraulic cylinder 10 extends, the rear tilting bracket 9 tilts relative to the side tilting bracket 6 with the rear tilting hinge seat 11 as the fulcrum.

[0021] The rear-tipping assembly drives the rear-tipping bracket 9 to rotate around the hinge seat via the rear-tipping hydraulic cylinder 10, achieving conventional rear-tipping unloading. The side-tipping assembly pushes the side-tipping bracket 6 to rotate around the side wall hinge via the side-tipping hydraulic cylinder 7, meeting the requirements for lateral tilting unloading. The rear-tipping assembly is mounted on the side-tipping bracket 6 to form a two-stage tilting mechanism. This design not only achieves mechanical linkage between the two unloading modes, but also forms a combined unloading angle through the coordinated control of the hydraulic system, effectively improving the thoroughness of material tipping. It is particularly suitable for unloading viscous materials, realizing the multi-dimensional tipping function of the cargo platform 3. It can meet the conventional rear-tipping unloading requirements and adapt to narrow or complex terrain operating scenarios through side tipping, significantly improving the vehicle's adaptability to diverse loading and unloading environments and expanding its application range.

[0022] Angle sensors are installed at both the rear-tilting hinge seat 11 and the side-tilting hinge seat 8. These angle sensors detect the tilting angles of the side-tilting bracket 6 and the rear-tilting bracket 9. The angle sensors can be connected to the vehicle control system. By installing angle sensors at the side-tilting hinge seat 8 and the rear-tilting hinge seat 11, the tilting angles of the side-tilting bracket 6 and the rear-tilting bracket 9 can be monitored in real time, and the data can be fed back to the vehicle control system. This allows for precise control of the extension and retraction stroke of the hydraulic cylinder, avoiding structural interference or hydraulic system overload caused by excessive tilting. It also enables automated unloading angle adjustment, improving operational safety and efficiency.

[0023] The surface of the cargo platform 3 is provided with anti-slip textures 12, which are continuously distributed in a herringbone pattern. These textures significantly increase the frictional resistance between the cargo and the platform, preventing bulk cargo, such as sand and coal, from slipping during transport or unloading. This is especially suitable for slippery or tilted conditions. It reduces the labor costs of securing cargo and lowers the risk of vehicle rollover due to cargo displacement. The surface of the cargo platform 3 is also equipped with locking holes 13, which can be quickly matched with the corner fittings of containers to achieve rigid locking of the containers through the installation of torsion locks. This allows the vehicle to function as both a flatbed and container transport vehicle, meeting the needs of multiple transport scenarios. Furthermore, it ensures the stability of the containers during side or rear-tipping unloading, avoiding the risk of container slippage caused by tipping.

[0024] The loading platform 3 is equipped with folding baffles along its edges. These baffles are connected to the side walls of the loading platform 3 via rotating hinges, and L-shaped locks are installed between the baffles. When transporting loose cargo, the baffles can be unfolded to form a barrier, preventing material spillage. When empty or transporting large cargo, they can be folded away to reduce wind resistance. The quick-locking function of the L-shaped locks ensures the connection strength of the baffles in the unfolded state, preventing deformation from impact during tipping and unloading, while also meeting the protection requirements of different types of cargo.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A flatbed self-unloading semi-trailer comprising a frame, a chassis for providing support to the frame and a cargo platform for placing cargo, characterized in that: The frame includes a traction part and a bearing part, the bottom end of the traction part is provided with a traction pin, the cargo platform is installed on the upper end of the bearing part, the rear turnover assembly and the side turnover assembly are arranged between the cargo platform and the bearing part, the side turnover assembly includes a side turnover support, a side turnover hydraulic cylinder and a side turnover hinge seat, the edge of the side turnover support is rotatably connected with the side wall of the bearing part through the side turnover hinge seat, the bottom end of the side turnover support is connected with the surface of the bearing part through the side turnover hydraulic cylinder, the rear turnover assembly includes a rear turnover support, a rear turnover hydraulic cylinder and a rear turnover hinge seat, one end of the rear turnover support away from the traction part is rotatably connected with the side turnover support through the rear turnover hinge seat, one end of the rear turnover support close to the traction part is connected with the side turnover support through the rear turnover hydraulic cylinder, the cargo platform is fixedly installed on the surface of the rear turnover support, when the side turnover hydraulic cylinder is elongated, the side turnover support is side turned relative to the frame with the side turnover hinge seat as the fulcrum, when the rear turnover hydraulic cylinder is elongated, the rear turnover support is rear turned relative to the side turnover support with the rear turnover hinge seat as the fulcrum.

2. A flatbed self-unloading semitrailer according to claim 1, characterized in that: The rear turnover hinge seat and the side turnover hinge seat are both provided with an angle sensor, the angle sensor is used for detecting the turning angle of the side turnover support and the rear turnover support, and the angle sensor can be connected with the vehicle-mounted control system.

3. A flatbed self-unloading semitrailer according to claim 1, characterized in that: The surface of the cargo platform is provided with anti-skid lines, and the anti-skid lines are continuously distributed in a wave shape.

4. A flatbed self-unloading semi-trailer according to any one of claims 1-3, characterized in that: The surface of the cargo platform is provided with lock holes, and the lock holes are used for installing twist locks to lock the containers during transportation.

5. A flatbed self-unloading semi-trailer according to any one of claims 1-3, characterized in that: The bottom of the bearing part close to the traction part is provided with an auxiliary support leg, and the auxiliary support leg includes a hydraulic telescopic rod and a ground pad.

6. A flatbed self-unloading semitrailer according to any one of claims 1-3, characterized in that: The edges of the cargo platform are provided with folding baffles, the folding baffles are connected with the side walls of the cargo platform through rotary hinges, and L-shaped locks are arranged between the folding baffles.

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