Truck compartment bottom plate and compartment
By installing support rollers on the floor of the truck bed, the problems of easy damage to goods during unloading of dump trucks and the difficulty of operating box trucks have been solved, achieving efficient loading and unloading and stable transportation with low energy consumption and low loss.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN GAOLU SHENGFA AUTOMOBILE TECH GRP CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-28
AI Technical Summary
Existing dump trucks are prone to damaging the integrity of goods during unloading, while box trucks are difficult to operate and have low loading and unloading efficiency, failing to meet diverse transportation needs.
An installation groove is made in the floor of the truck bed, and support rollers are installed. The goods are moved by rolling by raising and lowering the support rollers, which reduces friction and improves loading and unloading efficiency.
It reduces the power requirements for loading and unloading goods, reduces wear and tear on goods, improves transportation stability and loading and unloading efficiency, and reduces logistics costs.
Smart Images

Figure CN224170827U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of truck body technology, specifically a truck body floor and a truck body. Background Technology
[0002] In the field of modern logistics and transportation, trucks are the core transportation tools, and are classified into various types according to their uses, including general trucks, special trucks, dump trucks, and box trucks. Among them, the truck body undertakes the key function of loading and transporting goods.
[0003] Dump trucks achieve automatic unloading by lifting the entire truck bed upwards, a method that has certain advantages in transporting construction materials and other similar goods. However, as the scope of truck use continues to expand, the demand for transporting fragile and delicate goods is increasing. The significant lifting action of the dump truck bed during unloading can easily damage the integrity of the goods after transport, leading to cargo loss and making it difficult to meet diverse transportation needs.
[0004] Box trucks are widely used in freight transportation because they offer good protection for goods. Loading and unloading primarily rely on external forklifts to lift goods and place them into the cargo compartment. However, box truck compartments are generally quite long, requiring forklifts to lay goods flat inside the compartment and push them to designated positions. This not only requires significant power and increases operational difficulty, but also makes it difficult to retrieve goods at the innermost part of the compartment during unloading, as these goods are often in remote locations. This severely impacts loading and unloading efficiency, increases logistics costs, and hinders the further optimization and development of box trucks in logistics transportation. Utility Model Content
[0005] Therefore, to address the aforementioned shortcomings, this utility model provides a truck bed and a truck body. The truck bed has an installation groove in which support rollers are placed. When loading or unloading goods, the top of the support rollers extends above the bed, thus supporting the goods. Rolling instead of sliding is used to move the goods horizontally, which not only saves effort but also avoids unnecessary wear. During the transportation of goods, the support rollers can be lowered into the installation groove so that the goods come into contact with the bed, preventing the goods from rolling around inside the truck body and ensuring the stability of the goods during transportation. A truck body equipped with this truck bed facilitates quick loading and unloading of goods and allows the goods to be transported securely inside the truck body.
[0006] This utility model is implemented as follows:
[0007] First, a truck bed floor is provided, wherein several mounting grooves parallel to the length of the truck bed are provided on the floor, and several supporting rollers are installed below the floor, wherein the supporting rollers are movably disposed in the mounting grooves and the highest point of the supporting rollers can extend to the top of the floor.
[0008] Preferably, the support roller is mounted on one end of the bracket to maintain rotation, the middle end or the other end of the bracket is hinged in the mounting groove, and a tie rod is hinged to the outside of the other end or the middle end of the bracket. The tie rod connects several support rollers arranged along the length of the truck bed together, and the two ends of the tie rod are respectively pulled linearly by a drive device.
[0009] Preferably, a mounting plate is arranged below the base plate, and there is a gap between the base plate and the mounting plate for mounting support rollers.
[0010] Preferably, a first lifting device is provided at each of the four corners of the mounting plate. The telescopic end of the first lifting device is connected to the base plate to drive the base plate to rise and fall above the mounting plate. A support plate is provided between the base plate and the mounting plate. The support rollers are evenly distributed on the support plate and correspond to the mounting grooves respectively. The middle end of the support plate is hinged to the inner side of the mounting plate. A second lifting device is provided at the bottom of both sides of the hinge end of the support plate. The second lifting device is in contact with the bottom of the support plate.
[0011] Secondly, a truck bed is provided, wherein the bottom of the truck bed is provided with a truck bed floor as described above.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] 1. By creating mounting slots and installing support rollers in the truck bed floor, the tops of the support rollers rise above the floor during loading and unloading, replacing traditional sliding friction with rolling friction. Compared to the previous forklifts that needed to overcome significant sliding friction to push goods, this design greatly reduces the power required for goods movement, significantly reducing the energy consumption of loading and unloading equipment. Operators also do not need to expend excessive physical effort to move goods, greatly reducing the difficulty of loading and unloading operations.
[0014] 2. The support rollers prevent the bottom of the goods from sliding directly in contact with the floor of the truck bed, reducing friction wear between the outer packaging and the floor. This effectively prevents damage to the outer packaging or even the interior of the goods due to friction during loading and unloading, while also extending the service life of the truck bed and reducing maintenance costs.
[0015] 3. During transportation, the support rollers can be lowered into the mounting slot, allowing the goods to come into close contact with the base plate. The base plate provides stable support for the goods, effectively restricting them from rolling or shifting freely within the carriage, thus providing a safe and stable transportation environment. During loading and unloading, the support rollers can be raised to quickly and easily move the goods, truly achieving an organic combination of loading and unloading convenience and transportation stability.
[0016] 4. Goods can be quickly and easily moved to designated locations inside the truck bed by rolling and shifting on the support rollers. In particular, the removal of goods at the innermost part of the truck bed does not require the forklift to repeatedly adjust the position and angle, saving a lot of loading and unloading time and significantly improving the timeliness of logistics transportation. Attached Figure Description
[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute any limitation on the present invention. In the drawings:
[0018] Figure 1 This is a cross-sectional view of the base plate (showing the structure of Embodiment 2; due to the large length of the base plate, it is shown broken).
[0019] Figure 2 This is a cross-sectional view of the base plate (showing the structure of Embodiment 3);
[0020] Figure 3 This is a cross-sectional view of the base plate (showing the structure of Embodiment 3);
[0021] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;
[0022] Figure 5 for Figure 3 A schematic diagram of the midsole plate;
[0023] Figure 6 for Figure 5 Another schematic diagram of the state (support rollers raised);
[0024] Figure 7 for Figure 5 A schematic diagram of the disassembled structure of the midsole plate;
[0025] Figure 8 This is a schematic diagram of the structure where the base plate is installed on the carriage.
[0026] Figure 9 A schematic diagram of the structure for opening the rear door of the carriage;
[0027] In the diagram: 1. Base plate; 2. Support roller; 3. Mounting groove; 4. Bracket; 5. Drive device; 6. Tie rod; 7. Mounting plate; 8. Support plate; 9. First lifting device; 10. Second lifting device; 11. Hinge rod. Detailed Implementation
[0028] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this utility model and are not intended to limit this utility model in any way. The accompanying drawings in this utility model are only for illustrative purposes and to facilitate understanding of the embodiments and are not intended to limit this utility model in any way.
[0029] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.
[0030] As described in the background section, existing trucks rely solely on external forklifts to push goods into the cargo compartment when loading and unloading them. This not only requires considerable pushing force but also easily causes wear and tear between the goods and the truck floor. Furthermore, due to the limited length of the forklift, the goods inside the cargo compartment cannot be directly removed when unloading them.
[0031] Based on the above reasons, in order to solve the above problems, this utility model provides the following technical solution:
[0032] Example 1,
[0033] Please see the appendix Figure 1 ~Appendix Figure 6 A truck bed floor has several mounting grooves 3 parallel to the length of the truck bed on the floor 1. Several supporting rollers 2 are provided at the corresponding positions of the mounting grooves 3 on the floor 1. The supporting rollers 2 and the floor 1 are kept in a lifting and lowering manner so that the supporting rollers 2 are lowered into the mounting grooves or raised above the floor 1.
[0034] Example 2,
[0035] Please see the appendix Figure 1 Based on Embodiment 1, in order to enable the support rollers to rise above the base plate and simultaneously descend into the mounting groove of the base plate, a feasible solution is provided here:
[0036] The support roller 2 is mounted on one end of the bracket 4 and rotates. The other end of the bracket 4 is hinged in the mounting groove 3. A tie rod 6 is hinged to the outer side of the middle end of the bracket 4. The tie rod 6 connects several support rollers 2 arranged along the length of the truck bed. The two ends of the tie rod 6 are linearly pulled by the drive device 5 on the outer side of the base plate 1.
[0037] Example 3,
[0038] Please see the appendix Figure 2 Based on Embodiment 1, in order to enable the support rollers to rise above the base plate and simultaneously descend into the mounting groove of the base plate, another feasible solution is provided:
[0039] The support roller 2 is mounted on one end of the bracket 4 and rotates. The middle end of the bracket 4 is hinged in the mounting groove 3. The other end of the bracket 4 is hinged to the outside of the pull rod 6. The pull rod 6 connects several support rollers 2 arranged along the length of the truck bed. The two ends of the pull rod 6 are linearly pulled by the drive device 5 on the outside of the base plate 1.
[0040] The difference between this embodiment and embodiment 2 is that the hinge point positions of the bracket and the mounting groove are different, and the hinge point positions of the tie rod and the bracket are also different. This is mainly to facilitate installation or to improve the support strength.
[0041] In Embodiments 2 and 3, the pull rod 6 can be replaced with a soft steel rope. The soft steel rope is connected to the outside of the support 4, and the two ends of the soft steel rope are wound by a winch to achieve traction.
[0042] In Examples 2 and 3, the lifting and lowering method of the support roller 2 is as follows: the drive device 5 (such as a hydraulic device) at any end of the pull rod 6 is used to drive the pull rod 6 to move linearly. During the movement, the pull rod 6 drives the bracket 4 to rotate around the hinge point of the mounting groove, thereby driving the top support roller 2 to rise or fall, forming a tilting or upright structure, thereby realizing the lifting and lowering of the support roller 2.
[0043] Furthermore, to facilitate the quick installation of the support rollers 2 in the mounting slots 3 of the base plate 1, several support rollers 2 in any mounting slot 3 can be integrated together to form a whole, which facilitates quick installation and ensures that the support rollers 2 in the mounting slot 3 rise and fall synchronously to provide sufficient support force.
[0044] Furthermore, to ensure that the linear movement of the pull rod 6 can drive the bracket 4 to rotate, thereby realizing the lifting and lowering of the support roller 2, the drive devices 5 on both sides of the pull rod 6 are hinged to the pull rod 6, and the other end of the drive device 5 is hinged to the external support body.
[0045] Example 4,
[0046] Please see the appendix Figure 3 ~Appendix Figure 7 Based on Embodiment 1, in order to enable the support rollers to rise above the base plate and simultaneously descend into the mounting groove of the base plate, another feasible solution is provided:
[0047] A mounting plate 7 is arranged below the base plate 1, and there is a gap between the base plate 1 and the mounting plate 7 for mounting the support rollers 2.
[0048] In this embodiment, a first lifting device 9 is provided at each of the four corners of the mounting plate 7. The telescopic end of the first lifting device 9 is connected to the base plate 1 to drive the base plate 1 to rise and fall above the mounting plate 7. A support plate 8 is provided between the base plate 1 and the mounting plate 7. The support rollers 2 are evenly distributed on the support plate 8 and correspond to the mounting grooves 3 respectively. The middle end of the support plate 8 is hinged to the inner side of the mounting plate 7. A second lifting device 10 is provided at the bottom of both sides of the hinge end of the support plate 8. The second lifting device 10 is in contact with the bottom of the support plate 8.
[0049] In this embodiment, the middle end of the support plate 8 passes through the outside of the hinge rod 11 and remains rotating, thus achieving hinge connection. Both the first lifting device 9 and the second lifting device 10 can be configured as hydraulic lifting devices.
[0050] In this embodiment, the lifting method of the support roller 2 is as follows: the first lifting device 9 drives the base plate 1 to descend until the highest point of the support roller 2 extends above the base plate 1. Then, the second lifting device 10 at one end is activated to lift up, and the second lifting device 10 at the other end is lowered, so that the support plate 8 is tilted. This makes it easier for the goods on the support roller 2 to slide out of the carriage or slide into the carriage automatically under the action of gravity, which facilitates the automatic stacking of goods.
[0051] Example 5,
[0052] Please see 8 and Appendix Figure 9 This embodiment provides a truck bed, the bottom of which is provided with a truck bed floor as described in any one of embodiments 1 to 4.
[0053] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.
Claims
1. A truck bed floor, characterized in that: Several mounting slots parallel to the length of the truck bed are provided on the bottom plate. Several supporting rollers are provided at the corresponding positions of the mounting slots on the bottom plate. The supporting rollers and the bottom plate are kept in a lifting and lowering manner so that the supporting rollers are lowered into the mounting slots or raised above the bottom plate. The support roller is mounted on one end of the bracket and keeps rotating. The middle end or the other end of the bracket is hinged in the mounting groove. A tie rod is hinged to the outside of the other end or the middle end of the bracket. The tie rod connects several support rollers arranged along the length of the truck bed. The two ends of the tie rod are respectively pulled linearly by a drive device.
2. The truck bed floor according to claim 1, characterized in that: A mounting plate is arranged below the base plate, and there is a gap between the base plate and the mounting plate for mounting support rollers.
3. The truck bed floor according to claim 2, characterized in that: A first lifting device is provided at each of the four corners of the mounting plate. The telescopic end of the first lifting device is connected to the base plate to drive the base plate to rise and fall above the mounting plate. A support plate is provided between the base plate and the mounting plate. The support rollers are evenly distributed on the support plate and correspond to the mounting grooves respectively. The middle end of the support plate is hinged to the inner side of the mounting plate. A second lifting device is provided at the bottom of both sides of the hinge end of the support plate. The second lifting device is in contact with the bottom of the support plate.
4. A freight car body, characterized in that: The bottom of the carriage is provided with a truck carriage floor as described in any one of claims 1 to 3.