A flatbed trailer

CN224781854UActive Publication Date: 2026-09-22QINGDAO DOLEAN MASCH TECH CO LTD
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Patent Information

Application Number
CN202521875184.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2026-09-22
Estimated Expiration
2035-09-02

AI Technical Summary

Technical Problem

[0003]并且平板拖车是主要运输体积大,且不易拆分的大件货物,挂车的板面大多为平板结构,在运输时平板拖车上方放置的大型设备、物件,然而现有平板拖车所用的板面与地面具有一定的高度,因此在进行装卸时,人员需要将物品搬运在离地面具有一定距离的板面上,导致搬运较为麻烦,因此本实用新型提出一种在拖车尾部设置倾斜可接触地面的支撑组件,保证货物的装卸过程更加方便的平板拖车

Benefits of technology

通过移动平板尾端的限位滑槽,将倾斜伸出的活动板进行最终的可收纳设置,因此移动板、活动板最终的可收纳在限位滑槽内,并不会占用空间,影响车辆驾驶。

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Abstract

The utility model provides a flat trailer, including trailer body, trailer body includes cab and sets up the mobile flat plate in the rear of cab, mobile flat plate bottom end is provided with the mobile wheel, the tail end of mobile flat plate is provided with unloading assembly, and unloading assembly includes the limiting slide groove of setting in the tail end of mobile flat plate. The utility model has the beneficial effect that, by the direct extension of the mobile plate driven by the drive assembly, when the mobile plate is extended, the movable plate is first driven to move linearly in the limiting slide groove, the movable plate is slowly moved out of the limiting slide groove, after being moved out, the movable plate is caused to move downward due to its own weight, and because one end of the movable plate is movably connected to the mobile plate, the movable plate is finally caused to move obliquely due to its own weight, so that the supporting flat corner of the movable plate can be connected to the ground, the supporting flat corner is better in contact with the ground, the unloading of goods is facilitated, and the towing is convenient.
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Description

Technical Field

[0001] This utility model is a flatbed trailer, belonging to the field of trailers. Background Technology

[0002] Trailer flatbed trailers typically use pneumatic solid tires, have a low platform height, large loading capacity, and are safe, simple, and durable. They are not powered by themselves and require a tractor or forklift for towing.

[0003] Furthermore, flatbed trailers are primarily used for transporting large, bulky goods that are difficult to disassemble. The trailer decks are mostly flat structures, and large equipment and objects are placed on top of the flatbed trailers during transport. However, the existing flatbed trailer decks are at a certain height from the ground, so during loading and unloading, personnel need to move the items onto the deck, which is a certain distance from the ground, making the handling process quite troublesome. Therefore, this utility model proposes a flatbed trailer with an inclined support component at the rear of the trailer that can contact the ground, making the loading and unloading process of goods more convenient. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a flatbed trailer.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A flatbed trailer includes a trailer body, which includes a cab and a movable flatbed located behind the cab. The bottom of the movable flatbed is provided with movable wheels, and the rear end of the movable flatbed is provided with an unloading assembly. The unloading assembly includes a limiting groove located at the rear end of the movable flatbed. A drive assembly and a movable plate connected to the drive assembly are provided in the limiting groove. The other end of the movable plate is movably connected to a movable plate, which is pushed by the movable plate and moves out of the limiting groove. The bottom surface of the extended end of the movable plate has a supporting flat angle.

[0006] Furthermore, the drive component is a hydraulic cylinder installed inside the limiting slide groove. The output end of the hydraulic cylinder is connected to a hydraulic piston rod, and the other end of the hydraulic piston rod is fixedly connected to a moving plate.

[0007] Furthermore, two translation grooves are provided at the bottom of the limiting slide groove, and a translation block extending into the translation groove is fixed at the bottom of the moving plate.

[0008] Furthermore, a three-quarter circular groove is provided at the end of the movable plate facing the movable plate, and an extension plate is fixedly provided at the end of the movable plate facing the movable plate, with a movable connector for connecting the movable plate fixedly provided on the extension plate.

[0009] Furthermore, the movable connector includes a three-quarter cylinder fixed on the extension plate, the three-quarter cylinder being movably disposed in a three-quarter circular groove, and the three-quarter cylinder being disposed in the three-quarter circular groove in an anti-fall-off manner by a limiting member.

[0010] Furthermore, multiple arc-shaped limiting slots are provided in the three-quarter circular groove, and the limiting component is an arc-shaped slider fixed on the three-quarter cylinder. The number of arc-shaped sliders is equal to the number of arc-shaped limiting slots, and they are inserted into each other in a corresponding manner.

[0011] Furthermore, the tail end face of the mobile plate is fixedly provided with an inclined guide plate in the shape of a right angle triangle, and the tail end face of the mobile plate is also fixedly provided with a rectangular inclined support plate, with the movable plate extending inclinedly and supported on the inclined support plate.

[0012] Furthermore, both the movable plate and the retractable plate have rolling grooves on their bottom surfaces, and rolling balls are installed inside the rolling grooves, with three-quarters of the volume of the rolling balls embedded in the rolling grooves.

[0013] The beneficial effects of this utility model are: The movable plate is finally retracted by the limiting groove at the rear end of the moving plate. Therefore, the moving plate and the movable plate can be retracted in the limiting groove and will not take up space or affect the driving of the vehicle.

[0014] The moving plate is directly extended by the drive component. During the extension, the moving plate first moves linearly within the limiting slide groove. The moving plate slowly moves out of the limiting slide groove. After moving out, the moving plate descends due to its own weight. Since one end of the moving plate is movably connected to the moving plate, it eventually tilts due to its own weight, allowing the supporting flat angle of the moving plate to connect with the ground. This better level contact between the supporting flat angle and the ground facilitates unloading and towing of goods. This utility model is simple to set up. When not in use, the moving plate and the moving plate can be directly stored in the trailer body without taking up extra space, greatly improving the practicality of the flatbed trailer. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This utility model relates to a trailer body for a flatbed trailer; Figure 2 This is a schematic diagram of the overall mobile flatbed rear of a flatbed trailer according to the present invention. Figure 3 This is a schematic diagram showing the connection between the movable plate and the retractable plate of a flatbed trailer according to this utility model; Figure 4 This is a schematic diagram of a three-quarter cylindrical structure of a flatbed trailer according to the present invention; Figure 5 This is a schematic diagram of the bottom surface of the moving plate of a flatbed trailer according to the present invention.

[0017] In the diagram, 1. Trailer body; 2. Cab; 3. Moving flatbed; 4. Moving wheels; 5. Limiting groove; 6. Moving plate; 7. Movable plate; 8. Supporting flat angle; 9. Hydraulic piston rod; 10. Translation groove; 11. Translation block; 12. Three-quarter circular groove; 13. Extension plate; 14. Three-quarter cylinder; 15. Arc-shaped limiting groove; 16. Arc-shaped slider; 17. Inclined guide plate; 18. Inclined support plate; 19. Rolling groove; 20. Ball bearing. 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] Please see Figure 1-5 This utility model provides a flatbed trailer, including a trailer body 1. The trailer body 1 includes a cab 2 and a movable flatbed 3 mounted on the cab 2. The bottom end of the movable flatbed 3 is provided with movable wheels 4. The rear end of the movable flatbed 3 is provided with an unloading component. The unloading component includes a limiting groove 5 mounted on the rear end of the movable flatbed 3. The limiting groove 5 is provided with a drive component and a movable plate 6 connected to the drive component. The other end of the movable plate 6 is movably connected to a movable plate 7. The movable plate 7 is pushed by the movable plate 6 and moves out of the limiting groove 5. The bottom surface of the extended end of the movable plate 7 has a supporting flat angle 8.

[0020] See Figure 3 The driving component is a hydraulic cylinder set inside the limiting slide groove 5. The output end of the hydraulic cylinder is connected to a hydraulic piston rod 9, and the other end of the hydraulic piston rod 9 is fixedly connected to the moving plate 6. The output end of the hydraulic cylinder is connected to the hydraulic piston rod 9, which provides a strong pushing force to ensure that the moving plate 6 can smoothly perform translational movement.

[0021] See Figure 2 , Figure 4 and Figure 5Two translation grooves 10 are provided at the bottom of the limiting slide groove 5. The bottom of the moving plate 6 is fixed with a translation block 11 extending into the translation groove 10. The translation block 11 moves within the translation groove 10, thereby ensuring that the moving plate 6 moves smoothly and that the moving plate 7 generates unloading vibration during subsequent unloading, thus preventing the moving plate 6 from tilting.

[0022] See Figure 2-4 The movable plate 6 has a three-quarter circular groove 12 at one end facing the movable plate 7. An extension plate 13 is fixedly mounted on the end of the movable plate 7 facing the movable plate 6. A movable connector for connecting the movable plate 7 is fixedly mounted on the extension plate 13. The movable connector includes a three-quarter cylindrical column 14 fixed on the extension plate 13. The three-quarter cylindrical column 14 is movably disposed within the three-quarter circular groove 12. A limiting member prevents the column from falling off within the three-quarter circular groove 12. The movable plate 7 moves within the limiting groove 5. Moving in a straight line, the movable plate 7 slowly moves out of the limiting groove 5. After moving out, the movable plate 7 descends due to its own weight. Because the movable plate 7 has a three-quarter circular groove 12 and a three-quarter cylinder 14 is movably arranged in the three-quarter circular groove 12, the docking end of the movable plate 7 and the moving plate 6 is movably connected. Therefore, the movable plate 7 tilts due to its own weight, so that the supporting flat angle 8 of the movable plate 7 can connect to the ground. The supporting flat angle 8 has better flat contact with the ground, which facilitates the unloading of goods.

[0023] See Figure 4 Multiple arc-shaped limiting grooves 15 are provided in the three-quarter circular groove 12. The limiting component is an arc-shaped slider 16 fixed on the three-quarter cylinder 14. The number of arc-shaped sliders 16 is equal to the number of arc-shaped limiting grooves 15, and they are inserted into each other in a corresponding manner. The arc-shaped sliders 16 are movably arranged in the arc-shaped limiting grooves 15, thus ensuring that the three-quarter cylinder 14 is movably set inside the three-quarter circular groove 12 and that the three-quarter cylinder 14 does not detach, thus ensuring the stability of the movable connection.

[0024] See Figure 2 The tail end face of the movable plate 3 is fixedly provided with an inclined guide plate 17 in the shape of a right angle triangle, and the tail end face of the movable plate 3 is also fixedly provided with a rectangular inclined support plate 18. The movable plate 7 extends inclinedly and is supported on the inclined support plate 18. The setting of the inclined guide plate 17 can effectively ensure that the inclined guide plate 17 and the inclined movable plate 7 make inclined docking, such as Figure 2 The inclined guide plate 17, together with the inclined movable plate 7, ensures more convenient unloading. The movable plate 7 is supported by the inclined support plate 18 after it is tilted, ensuring the stability of the support.

[0025] See Figure 5Both the moving plate 6 and the movable plate 7 have rolling grooves 19 on their bottom surfaces. Rolling balls 20 are installed inside the rolling grooves 19, with three-quarters of the volume of the rolling balls 20 embedded in the rolling grooves 19. The movement of the rolling balls 20 ensures that whether the moving plate 6 and the movable plate 7 are extending or retracting, the friction between the bottom surfaces of the moving plate 6 and the movable plate 7 is reduced, ensuring smooth movement and making the movement more effortless.

[0026] In use, the movable plate 7, which extends at an angle, is finally retracted via the limiting groove 5 at the rear end of the movable flatbed 3. Therefore, the movable plate 6 and movable plate 7 are ultimately retracted within the limiting groove 5, without occupying space or affecting vehicle driving. The drive assembly drives the movable plate 6 to extend directly. During extension, the movable plate 7 first moves linearly within the limiting groove 5, then slowly moves out of the limiting groove 5. After exiting, the movable plate 7 descends due to its own weight. Because one end of the movable plate 7 is movably connected to the movable plate 6, it tilts due to its own weight, allowing its supporting angle 8 to connect with the ground. This better alignment of the supporting angle 8 with the ground facilitates unloading and towing. This utility model is simple to design. When not in use, the movable plate 6 and movable plate 7 can be directly retracted into the trailer body 1, without occupying extra space, greatly improving the practicality of the flatbed trailer. In fact, the limiting groove 5 at the rear of the trailer body 1 does not have openings on either side. Figure 1 What I saw, but Figure 2 The openings on both sides of the middle limit slide 5 are actually intended to make it easier to see the arrangement of the components.

[0027] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flatbed trailer, characterized in that, The trailer body (1) includes a cab (2) and a mobile flatbed (3) installed on the cab (2). The bottom of the mobile flatbed (3) is provided with mobile wheels (4), and the rear end of the mobile flatbed (3) is provided with unloading components. The unloading assembly includes a limiting groove (5) at the tail end of the moving plate (3). A driving assembly and a moving plate (6) connected to the driving assembly are provided within the limiting groove (5). A movable plate (7) is movably connected to the other end of the moving plate (6). The movable plate (7) is pushed by the moving plate (6) and extends out of the limiting groove (5). The bottom surface of the extended end of the movable plate (7) has a supporting flat angle (8). A three-quarter circular groove (12) is opened at one end of the moving plate (6) facing the movable plate (7). An extension plate (13) is fixedly provided at one end of the movable plate (7) facing the moving plate (6). A movable connecting member is fixedly provided on the extension plate (13) to connect the movable plate (7). The movable connecting member includes four... The three-quarter cylinder (14) is movably set in the three-quarter circular groove (12). The three-quarter cylinder (14) is set in the three-quarter circular groove (12) by a limiting member to prevent it from falling off. Multiple arc-shaped limiting grooves (15) are opened in the three-quarter circular groove (12). The limiting member is an arc-shaped slider (16) fixed on the three-quarter cylinder (14). The number of arc-shaped sliders (16) is equal to the number of arc-shaped limiting grooves (15) and they are inserted into each other. The tail end face of the moving plate (3) is fixed with an inclined guide plate (17) in the shape of a right triangle. The tail end face of the moving plate (3) is also fixed with a rectangular inclined support plate (18). The moving plate (7) extends obliquely and is supported on the inclined support plate (18).

2. A flatbed trailer according to claim 1, characterized in that, The drive component is a hydraulic cylinder set inside the limit slide (5). The output end of the hydraulic cylinder is connected to a hydraulic piston rod (9), and the other end of the hydraulic piston rod (9) is fixedly connected to a moving plate (6).

3. A flatbed trailer according to claim 2, characterized in that, Two translation grooves (10) are opened at the bottom of the limiting slide groove (5), and a translation block (11) extending into the translation groove (10) is fixed at the bottom of the moving plate (6).

4. A flatbed trailer according to claim 3, characterized in that, The bottom surfaces of the movable plate (6) and the movable plate (7) are provided with rolling grooves (19), and rolling balls (20) are provided inside the rolling grooves (19). Three-quarters of the volume of the rolling balls (20) is embedded in the rolling grooves (19).