Frame assembly and flat transport vehicle

By redesigning the chassis assembly, eliminating the sub-beams, and arranging components such as the fuel tank using connecting plates and sunken plates, the problem of the flatbed transport vehicle's overall height and center of gravity being too high was solved, enabling the vehicle to pass through height-restricted areas and reducing the risk of side tilting.

CN224184345UActive Publication Date: 2026-05-01DONGFENG XINJIANG AUTOMOBILE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGFENG XINJIANG AUTOMOBILE
Filing Date
2025-05-26
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing flatbed transport vehicles have an excessively high overall height and center of gravity during the modification process, which makes them unable to pass through some height-restricted areas and poses a risk of tipping over.

Method used

Design a frame assembly including a left longitudinal beam, a right longitudinal beam, a left connecting plate, a right connecting plate, and multiple upper structure diagonal supports. Eliminate the sub-beams and connect two rows of longitudinally spaced upper structure diagonal supports through the left and right connecting plates to reduce the overall vehicle height. Arrange the urea tank, fuel tank, and battery frame through a sunken plate to lower the center of gravity.

Benefits of technology

This reduces the overall vehicle height, allowing it to pass through height-restricted areas, reducing the risk of rollover, meeting modification requirements, and ensuring installation strength and ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a frame assembly and a flat plate transport vehicle, and relates to the technical field of frame structures, the frame assembly comprises a left longitudinal beam and a right longitudinal beam which are connected, a left connecting plate and a right connecting plate, and a plurality of upload inclined supports, the left connecting plate and the right connecting plate are respectively connected with the outer side surfaces of the left longitudinal beam and the right longitudinal beam, and the upload inclined supports are connected with the left longitudinal beam and the right longitudinal beam. And the plurality of upper inclined supports are longitudinally arranged in two rows at intervals and are connected with the outer side surfaces of the left connecting plate and the right connecting plate. The left connecting plate and the right connecting plate are arranged, the left connecting plate and the right connecting plate are directly connected with the outer side face of the left longitudinal beam and the outer side face of the right longitudinal beam of the frame respectively, and then the left connecting plate and the right connecting plate are connected with the two rows of upper inclined supports which are longitudinally arranged at intervals, so that the refitting requirement of the flat plate transport vehicle is met; original auxiliary beams of the frame assembly are omitted, the purpose of reducing the flat plate height of the whole vehicle is achieved, then the whole vehicle can pass through a height limiting area, and the side tipping risk of the whole vehicle is reduced.
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Description

A chassis assembly and a flatbed transport vehicle Technical Field

[0001] This utility model relates to the field of vehicle frame structure technology, and in particular to a vehicle frame assembly and a flatbed transport vehicle. Background Technology

[0002] Flatbed trucks, also known as construction machinery transport vehicles, flatbed trucks, or low-bed trucks, are mainly used to transport non-detachable objects such as excavators, loaders, and harvesters. Flatbed trucks are common large-scale heavy-duty trucks used in factories, construction sites, and other large-scale production or engineering projects. Their strong load-bearing capacity has made them play an important role in economic development.

[0003] In existing technology, flatbed transport vehicles are generally modified from ordinary transport vehicles. Most of them involve installing superstructure diagonal supports on the subframe of the vehicle frame, and then mounting the flatbed on the superstructure diagonal supports. However, this modification method results in a higher overall height and center of gravity for the flatbed transport vehicle when transporting goods, which in turn makes it impossible for the vehicle to pass through some height-restricted areas and poses a risk of tipping over. Summary of the Invention

[0004] This utility model provides a chassis assembly and a flatbed transport vehicle to solve the technical problem in the related art that when converting an existing chassis assembly into a flatbed transport vehicle, the overall height and center of gravity of the vehicle are too high, which leads to the vehicle being unable to pass through some height-restricted areas and the vehicle being at risk of tipping over.

[0005] In a first aspect, a frame assembly is provided, comprising:

[0006] Connecting the left and right longitudinal beams;

[0007] A left connecting plate and a right connecting plate, the left connecting plate and the right connecting plate being connected to the outer surfaces of the left longitudinal beam and the right longitudinal beam, respectively;

[0008] Multiple upper inclined supports are arranged in two rows at longitudinal intervals and connected to the outer surfaces of the left and right connecting plates.

[0009] In some embodiments, the frame assembly further includes:

[0010] A first sinking plate and a second sinking plate are spaced apart and disposed on the lower side of the left connecting plate, respectively for installing the urea tank assembly and the oil tank assembly.

[0011] In some embodiments, the first and second sunken plates are integrally formed with the left connecting plate.

[0012] In some embodiments, the frame assembly further includes:

[0013] The third recessed plate is located on the lower side of the right connecting plate and is used to install the battery frame.

[0014] In some embodiments, the third sunken plate and the right connecting plate are integrally formed.

[0015] In some embodiments, the cross-sectional dimensions of the upper inclined supports located on the first, second, and third sunken plates are smaller than the cross-sectional dimensions of the upper inclined supports at other locations.

[0016] In some embodiments, the first, second, and third sunken plates are each provided with multiple mounting holes.

[0017] In some embodiments, the spacing between two adjacent upper inclined supports is 250–300 mm.

[0018] In some embodiments, the left connecting plate and the right connecting plate are riveted to the left longitudinal beam and the right longitudinal beam, respectively.

[0019] Secondly, a flatbed transport vehicle is provided, including the aforementioned frame assembly.

[0020] The beneficial effects of the technical solution provided by this utility model include:

[0021] This utility model embodiment provides a frame assembly and a flatbed transport vehicle. The frame assembly is provided with a left connecting plate and a right connecting plate, which are directly connected to the outer sides of the left and right longitudinal beams of the frame, respectively. The left and right connecting plates are then connected to two rows of longitudinally spaced upper structure diagonal supports to meet the modification requirements of the flatbed transport vehicle. The original sub-beams of the frame assembly are eliminated, thereby reducing the height of the flatbed and allowing the vehicle to pass through height-restricted areas, reducing the risk of vehicle tilting. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of 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.

[0023] Figure 1 is a structural schematic diagram of a vehicle frame assembly provided in an embodiment of the present utility model;

[0024] Figure 2 is a schematic diagram of another structure of a frame assembly provided in an embodiment of the present utility model;

[0025] Figure label:

[0026] 1. Left longitudinal beam;

[0027] 2. Right longitudinal beam

[0028] 3. Left connecting plate

[0029] 4. Right connecting plate

[0030] 5. Upper diagonal support;

[0031] 6. First recessed plate; 601. Mounting hole;

[0032] 7. Second sunken plate;

[0033] 8. Third sunken plate;

[0034] 9. Urea tank assembly;

[0035] 10. Fuel tank assembly;

[0036] 11. Battery frame. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] This utility model provides a chassis assembly that solves the technical problem that when converting existing chassis assemblies into flatbed transport vehicles, the overall height and center of gravity of the vehicle are too high, which leads to the vehicle being unable to pass through some height-restricted areas and the vehicle being at risk of tipping over.

[0039] Referring to Figures 1 and 2, this embodiment of the present invention provides a frame assembly, including: a connected left longitudinal beam 1 and a right longitudinal beam 2, a left connecting plate 3 and a right connecting plate 4, and multiple upper structure diagonal supports 5.

[0040] The left connecting plate 3 and the right connecting plate 4 are respectively connected to the outer sides of the left longitudinal beam 1 and the right longitudinal beam 2, and the multiple upper inclined supports 5 are arranged in two rows at longitudinal intervals and connected to the outer sides of the left connecting plate 3 and the right connecting plate 4.

[0041] The frame assembly of this utility model is provided with a left connecting plate and a right connecting plate. The left connecting plate and the right connecting plate are directly connected to the outer sides of the left longitudinal beam and the right longitudinal beam of the frame, respectively. Then, the left connecting plate and the right connecting plate connect multiple longitudinally spaced upper body diagonal supports to meet the modification requirements of flatbed transport vehicles. The original sub-beam of the frame assembly is eliminated, thereby reducing the height of the flatbed of the vehicle (approximately 120mm in actual application). As a result, the vehicle can pass through height-restricted areas, reducing the risk of vehicle tilting.

[0042] As an optional implementation, in one utility model embodiment, referring to Figure 2, the frame assembly further includes: a first sinking plate 6 and a second sinking plate 7, which are spaced apart on the lower side of the left connecting plate 3. The first sinking plate 6 and the second sinking plate 7 are used to install the urea tank assembly 9 and the fuel tank assembly 10, respectively. By sinking the urea tank assembly 9 and the fuel tank assembly 10 with the first sinking plate 6 and the second sinking plate 7, the center of gravity of the vehicle can be lowered. Furthermore, the first sinking plate 6 and the second sinking plate 7 are integrally formed with the left connecting plate 3, ensuring the installation strength of the urea tank assembly 9 and the fuel tank assembly 10.

[0043] As an optional implementation, in one embodiment of the utility model, referring to Figure 1, the frame assembly further includes a third recessed plate 8, which is disposed below the right connecting plate 4 and is used to mount the battery frame 11. By lowering the battery frame 11 using the third recessed plate 8, the center of gravity of the vehicle can be reduced. Furthermore, the third recessed plate 8 and the right connecting plate 4 are integrally formed to ensure the installation strength of the battery frame 11.

[0044] As an optional implementation, in one utility model embodiment, referring to Figure 2, the cross-sectional dimensions of the upper structure inclined supports 5 located on the first sunken plate 6, the second sunken plate 7, and the third sunken plate 8 are smaller than the cross-sectional dimensions of the upper structure inclined supports 5 at other locations. By setting upper structure inclined supports 5 with different cross-sectional dimensions, the distance between the upper structure inclined supports 5 and the urea tank assembly 9 and the fuel tank assembly 10 is considered in the height direction, ensuring convenient refueling for users after the vehicle modification is completed. Simultaneously, the distance between the upper structure inclined supports 5 and the battery frame 11 is considered in the height direction, ensuring convenient maintenance. Furthermore, the gap between the battery frame 11 and the ground must ensure minimum ground clearance. In the vehicle's driving direction, the arrangement of the urea tank assembly 9, the fuel tank assembly 10, and the battery frame 11 must be standardized for different wheelbase vehicle models.

[0045] As an optional implementation, in one utility model embodiment, as shown in Figure 2, the first sinking plate 6, the second sinking plate 7 and the third sinking plate 8 are each provided with a plurality of mounting holes 601 to facilitate the corresponding installation of the urea tank assembly 9, the oil tank assembly 10 and the battery frame 11.

[0046] As an optional implementation, in one utility model embodiment, as shown in Figure 2, the spacing between two adjacent upper inclined supports 5 is 250-300mm, thereby achieving standardization of vehicle modification.

[0047] As an optional implementation, in one utility model embodiment, as shown in Figure 1, the left connecting plate 3 and the right connecting plate 4 are riveted to the left longitudinal beam 1 and the right longitudinal beam 2 respectively, to ensure connection reliability and strength.

[0048] This utility model embodiment also provides a flatbed transport vehicle, including the aforementioned frame assembly. Referring to Figures 1 and 2, the frame assembly includes: a connected left longitudinal beam 1 and a right longitudinal beam 2, a left connecting plate 3 and a right connecting plate 4, and multiple upper structure diagonal supports 5.

[0049] The left connecting plate 3 and the right connecting plate 4 are respectively connected to the outer sides of the left longitudinal beam 1 and the right longitudinal beam 2, and the multiple upper inclined supports 5 are arranged in two rows at longitudinal intervals and connected to the outer sides of the left connecting plate 3 and the right connecting plate 4.

[0050] The flatbed transport vehicle of this utility model has a frame assembly with a left connecting plate and a right connecting plate. The left connecting plate and the right connecting plate are directly connected to the outer sides of the left longitudinal beam and the right longitudinal beam of the frame, respectively. The left connecting plate and the right connecting plate connect two rows of longitudinally spaced upper structure diagonal supports to meet the modification requirements of the flatbed transport vehicle. The original sub-beam of the frame assembly is eliminated, thereby reducing the height of the flatbed of the vehicle (approximately 120mm in actual application). As a result, the vehicle can pass through height-restricted areas, reducing the risk of vehicle tilting.

[0051] As an optional implementation, in one utility model embodiment, referring to Figure 2, the frame assembly further includes: a first sinking plate 6 and a second sinking plate 7, which are spaced apart on the lower side of the left connecting plate 3. The first sinking plate 6 and the second sinking plate 7 are used to install the urea tank assembly 9 and the fuel tank assembly 10, respectively. By sinking the urea tank assembly 9 and the fuel tank assembly 10 with the first sinking plate 6 and the second sinking plate 7, the center of gravity of the vehicle can be lowered. Furthermore, the first sinking plate 6 and the second sinking plate 7 are integrally formed with the left connecting plate 3, ensuring the installation strength of the urea tank assembly 9 and the fuel tank assembly 10.

[0052] As an optional implementation, in one embodiment of the utility model, referring to Figure 1, the frame assembly further includes a third recessed plate 8, which is disposed below the right connecting plate 4 and is used to mount the battery frame 11. By lowering the battery frame 11 using the third recessed plate 8, the center of gravity of the vehicle can be reduced. Furthermore, the third recessed plate 8 and the right connecting plate 4 are integrally formed to ensure the installation strength of the battery frame 11.

[0053] As an optional implementation, in one utility model embodiment, referring to Figure 2, the cross-sectional dimensions of the upper structure inclined supports 5 located on the first sunken plate 6, the second sunken plate 7, and the third sunken plate 8 are smaller than the cross-sectional dimensions of the upper structure inclined supports 5 at other locations. By setting upper structure inclined supports 5 with different cross-sectional dimensions, the distance between the upper structure inclined supports 5 and the urea tank assembly 9 and the fuel tank assembly 10 is considered in the height direction, ensuring convenient refueling for users after the vehicle modification is completed. Simultaneously, the distance between the upper structure inclined supports 5 and the battery frame 11 is considered in the height direction, ensuring convenient maintenance. Furthermore, the gap between the battery frame 11 and the ground must ensure minimum ground clearance. In the vehicle's driving direction, the arrangement of the urea tank assembly 9, the fuel tank assembly 10, and the battery frame 11 must be standardized for different wheelbase vehicle models.

[0054] As an optional implementation, in one utility model embodiment, as shown in Figure 2, the first sinking plate 6, the second sinking plate 7 and the third sinking plate 8 are each provided with a plurality of mounting holes 601 to facilitate the corresponding installation of the urea tank assembly 9, the oil tank assembly 10 and the battery frame 11.

[0055] As an optional implementation, in one utility model embodiment, as shown in Figure 2, the spacing between two adjacent upper inclined supports 5 is 250-300mm, thereby achieving standardization of vehicle modification.

[0056] As an optional implementation, in one utility model embodiment, as shown in Figure 1, the left connecting plate 3 and the right connecting plate 4 are riveted to the left longitudinal beam 1 and the right longitudinal beam 2 respectively, to ensure connection reliability and strength.

[0057] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0058] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0059] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A vehicle frame assembly, characterized in that, include: The left longitudinal beam (1) and the right longitudinal beam (2) are connected; the left connecting plate (3) and the right connecting plate (4) are connected to the outer sides of the left longitudinal beam (1) and the right longitudinal beam (2) respectively; and multiple upper inclined supports (5) are arranged in two rows at longitudinal intervals and connected to the outer sides of the left connecting plate (3) and the right connecting plate (4).

2. The frame assembly according to claim 1, characterized in that, Also includes: The first sinking plate (6) and the second sinking plate (7) are spaced apart on the lower side of the left connecting plate (3) and are used to install the urea tank assembly (9) and the oil tank assembly (10), respectively.

3. The frame assembly according to claim 2, characterized in that: The first sinking plate (6) and the second sinking plate (7) are integrally formed with the left connecting plate (3).

4. The frame assembly according to claim 2, characterized in that, Also includes: The third recessed plate (8) is located on the lower side of the right connecting plate (4) and is used to install the battery frame (11).

5. The frame assembly according to claim 4, characterized in that: The third sunken plate (8) and the right connecting plate (4) are integrally formed.

6. The frame assembly according to claim 4, characterized in that: The cross-sectional dimensions of the upper inclined support (5) located on the first sunken plate (6), the second sunken plate (7) and the third sunken plate (8) are smaller than the cross-sectional dimensions of the upper inclined support (5) at other locations.

7. The frame assembly according to claim 4, characterized in that: The first sunken plate (6), the second sunken plate (7) and the third sunken plate (8) are each provided with a plurality of mounting holes (601).

8. The frame assembly according to claim 1, characterized in that: The distance between two adjacent upper inclined supports (5) is 250-300mm.

9. The frame assembly according to claim 1, characterized in that: The left connecting plate (3) and the right connecting plate (4) are respectively riveted to the left longitudinal beam (1) and the right longitudinal beam (2).

10. A flatbed transport vehicle, characterized in that, Includes the frame assembly as described in any one of claims 1-9.