Cab suspension mounting device

By designing the rear suspension of the cab as a pivot structure, the complex stress problem caused by the rigid connection between the cab and the frame is solved, the load is reduced and the strength design is simplified, and the overall structural strength and space utilization of the vehicle are improved.

CN223821818UActive Publication Date: 2026-01-23ANHUI WEIDU HLDG CO LTD
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Patent Information

Application Number
CN202520218343.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2026-01-23
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

The existing rigid connection between the truck cab and the frame results in complex stress at the cab mounting points, making structural strength design difficult and affecting the interior space of the cab and the overall vehicle shape.

Method used

Design a cab suspension mounting device, in which the rear cab suspension is designed as a pivot structure, and is connected to the frame assembly and floor assembly through the suspension assembly, allowing rotation, releasing the deformation of the rear end of the cab and the frame in the longitudinal direction of the vehicle, and reducing the load.

Benefits of technology

The load on the cab suspension components was reduced, the difficulty of strength design was decreased, and the overall structural strength and space utilization of the vehicle were improved.

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Abstract

The utility model discloses a cab suspension installation device which comprises a frame assembly, a suspension assembly and a floor assembly. The suspension assembly is connected with the frame assembly and the floor assembly, and the frame assembly and the floor assembly can rotate along the suspension assembly. The suspension structure has the advantages that the second suspension part is designed to be of the rotating shaft structure, deformation of the rear end of the cab and the frame assembly in the longitudinal direction of the whole vehicle can be partially released, the load of the suspension portion of the cab is reduced, and therefore the strength design difficulty is reduced; a plurality of suspension assemblies are distributed at the bottom of the cab in the longitudinal direction of the whole vehicle, and a first suspension part can be installed or removed according to the length of the cab; the second suspension piece is of a rotating shaft structure, the cab and the frame can rotate at the suspension position, and the load is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a cab suspension mounting device. Background Technology

[0002] Currently, the mainstream cab mounting methods in the truck market are floating or semi-floating designs. This structure results in significant cab displacement, requiring the sacrifice of Z-axis space and allowing for larger tolerances in the gaps between external body panels to ensure sufficient cab travel. This is detrimental to increasing the internal cab space and improving the overall vehicle aesthetics. Therefore, in recent years, a rigid connection between the cab and the frame has been reintroduced into the design philosophy.

[0003] Most current rigid connection methods directly use bolts to rigidly connect the cab to the frame. This completely fixed connection method results in high connection rigidity between the cab and the frame. When the vehicle is in motion, the elastic deformation of the cab mounting point and the frame is completely synchronized, which leads to complex stress on the cab mounting point, especially the rear mounting point, and makes the structural strength design difficult.

[0004] The present invention aims to design a novel rigid connection device for truck cab suspension, which retains the advantages of traditional rigid connection while reducing the load on the cab suspension part and reducing the design difficulty of strength performance. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the above or prior art, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a cab suspension mounting device that designs the rear cab suspension as a pivot structure, which can partially release the deformation of the rear end of the cab and the frame in the longitudinal direction of the vehicle, reduce the load on the cab suspension part, and thus reduce the difficulty of strength design.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a cab suspension mounting device, which includes a frame assembly, a suspension assembly, and a floor assembly; the suspension assembly is connected to the frame assembly and the floor assembly respectively, and the frame assembly can rotate along the suspension assembly.

[0009] As a preferred embodiment of the cab suspension mounting device of this utility model, the suspension assembly includes a first suspension member and a second suspension member; the first suspension member is connected to the floor assembly, and the second suspension member is rotatably connected to the floor assembly and the frame assembly.

[0010] In a preferred embodiment of the cab suspension mounting device of this utility model, the second suspension component includes a floor longitudinal beam connector, a frame crossbeam connector, and a rotating component; the floor longitudinal beam connector is connected to the frame crossbeam connector via the rotating component, and the floor longitudinal beam connector and the frame crossbeam connector can rotate around the rotating component.

[0011] In a preferred embodiment of the cab suspension mounting device of this utility model, the floor longitudinal beam connector is connected to the floor assembly, and the frame crossbeam connector is connected to the frame assembly.

[0012] As a preferred embodiment of the cab suspension mounting device of this utility model, the first suspension component includes a first suspension and a second suspension; the first suspension is connected to the frame assembly, the second suspension is disposed on the frame assembly, and the second suspension is connected to the floor assembly.

[0013] In a preferred embodiment of the cab suspension mounting device of this utility model, the first suspension component further includes a third suspension component; the third suspension component is disposed on one side of the second suspension component, and the third suspension component is connected to the floor assembly and the frame assembly.

[0014] As a preferred embodiment of the cab suspension mounting device of this utility model, the frame assembly includes a front longitudinal beam and a crossbeam; the front longitudinal beam is connected by a second suspension member, and one side of the front longitudinal beam is connected to a first suspension member; the front longitudinal beam and the crossbeam can rotate around the second suspension member.

[0015] As a preferred embodiment of the cab suspension mounting device of this utility model, the frame assembly further includes a mid-section longitudinal beam and a side section longitudinal beam; the frame crossbeam is connected to the mid-section longitudinal beam and the side section longitudinal beam respectively, and the frame crossbeam can support the mid-section longitudinal beam and the side section longitudinal beam.

[0016] As a preferred embodiment of the cab suspension mounting device of this utility model, the floor assembly includes a cab floor longitudinal beam and a longitudinal beam support plate; one end of the cab floor longitudinal beam is connected to the longitudinal beam support plate, and the longitudinal beam support plate is connected to the second suspension component.

[0017] As a preferred embodiment of the cab suspension mounting device of this utility model, the first suspension, the second suspension and the third suspension are inverted L-shaped.

[0018] The beneficial effects of this utility model are as follows: By designing the second suspension component as a pivot structure, this utility model can partially release the deformation of the rear end of the cab and the frame assembly in the longitudinal direction of the vehicle, reduce the load on the cab suspension part, and thus reduce the difficulty of strength design; multiple sets of suspension components are distributed along the longitudinal direction of the vehicle at the bottom of the cab, wherein the first suspension component can be installed or removed depending on the length of the cab; the second suspension component is a pivot structure, and the cab and the frame can rotate at this suspension position to reduce the load. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of 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. Wherein:

[0020] Figure 1 A three-dimensional schematic diagram of the cab suspension mounting device.

[0021] Figure 2 A three-dimensional schematic diagram of the second suspension component for the cab suspension mounting device.

[0022] Figure 3 A schematic diagram of the elastic deformation of the chassis assembly for the cab suspension mounting device.

[0023] Figure 4 for Figure 3 Enlarged view of the deformation of the second suspension component of the cab suspension mounting device. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example 1

[0028] Reference Figures 1-3 This is the first embodiment of the present utility model. This embodiment provides a cab suspension mounting device, which includes a frame assembly 1, a suspension assembly 2, and a floor assembly 3. The frame assembly 1 and the floor assembly 3 can be connected through the suspension assembly 2. When the suspension assembly 2 is impacted, it can rotate, causing the frame to undergo elastic deformation.

[0029] Specifically, it includes a frame assembly 1, a suspension assembly 2, and a floor assembly 3; the suspension assembly 2 is connected to both the frame assembly 1 and the floor assembly 3, and the frame assembly 1 can rotate along the suspension assembly 2.

[0030] In summary, this utility model allows the frame assembly 1 and the floor assembly 3 to rotate through the suspension component 2, which, while ensuring a rigid connection, can release the longitudinal deformation caused by the impact and reduce the impact load.

[0031] Example 2

[0032] Reference Figures 1-4 This is the second embodiment of the present invention. In the previous embodiment, the cab suspension mounting device includes a frame assembly 1, a suspension assembly 2, and a floor assembly 3. The frame assembly 1 and the floor assembly 3 can be connected through the suspension assembly 2. The suspension assembly 2 can rotate when it is impacted, causing the frame to undergo elastic deformation.

[0033] Specifically, it includes a frame assembly 1, a suspension assembly 2, and a floor assembly 3; the suspension assembly 2 is connected to both the frame assembly 1 and the floor assembly 3, and the frame assembly 1 can rotate along the suspension assembly 2.

[0034] Furthermore, the suspension assembly 2 includes a first suspension member 21 and a second suspension member 22; the first suspension member 21 is connected to the floor assembly 3, and the second suspension member 22 is rotatably connected to the floor assembly 3 and the frame assembly 1.

[0035] Furthermore, the second suspension component 22 includes a floor longitudinal beam connector 221, a frame crossbeam connector 222, and a rotating component 223; the floor longitudinal beam connector 221 is connected to the frame crossbeam connector 222 through the rotating component 223, and the floor longitudinal beam connector 221 and the frame crossbeam connector 222 can rotate around the rotating component 223.

[0036] Preferably, the rotating component 223 is a pin, which facilitates the rotation of the floor longitudinal beam connector 221 and the frame crossbeam connector 222 around the rotating component 223.

[0037] It should be noted that the reference Figure 2There must be a height difference between the pin and the mounting surface, i.e., h>0; otherwise, although there is a pin after the cab is assembled, there will be no rotation effect.

[0038] Furthermore, the floor longitudinal beam connector 221 is connected to the floor assembly 3, and the frame crossbeam connector 222 is connected to the frame assembly 1.

[0039] Preferably, upon impact, the floor beam connector 221 and the floor assembly 3 rotate around the rotating member 223, resulting in elastic deformation.

[0040] Furthermore, the first suspension component 21 includes a first suspension 211 and a second suspension 212; the first suspension 211 is connected to the frame assembly 1, the second suspension 212 is disposed on the frame assembly 1, and the second suspension 212 is connected to the floor assembly 3.

[0041] Furthermore, the first suspension component 21 also includes a third suspension 213; the third suspension 213 is disposed on one side of the second suspension 212, and the third suspension 213 is connected to the floor assembly 3 and the frame assembly 1.

[0042] Preferably, the floor assembly 3 can be connected via the second suspension 212 and the third suspension 213.

[0043] Preferably, one end of the first suspension 211 is connected to the floor assembly 3, and the other end is connected to other structures.

[0044] Furthermore, the frame assembly 1 includes a front longitudinal beam 11 and a frame crossbeam 12; the front longitudinal beam 11 is connected by a second suspension member 22, and one side of the front longitudinal beam 11 is connected to a first suspension member 21; the front longitudinal beam 11 and the frame crossbeam 12 can rotate around the second suspension member 22.

[0045] Furthermore, the frame assembly 1 also includes a mid-section longitudinal beam 13 and a side-section longitudinal beam 14; the frame crossbeam 12 is connected to the mid-section longitudinal beam 13 and the side-section longitudinal beam 14 respectively, and the frame crossbeam 12 can support the mid-section longitudinal beam 13 and the side-section longitudinal beam 14.

[0046] Furthermore, the floor assembly 3 includes a cab floor longitudinal beam 31 and a longitudinal beam support plate 32; one end of the cab floor longitudinal beam 31 is connected to the longitudinal beam support plate 32, and the longitudinal beam support plate 32 is connected to the second suspension member 22.

[0047] Furthermore, the first suspension 211, the second suspension 212, and the third suspension 213 are inverted L-shaped.

[0048] In summary, by designing the second suspension component 22 as a pivot structure, this utility model can partially release the deformation of the rear end of the cab and the frame assembly 1 in the longitudinal direction of the vehicle, reduce the load on the cab suspension part, and thus reduce the difficulty of strength design; multiple sets of suspension assemblies 2 are arranged along the longitudinal direction of the vehicle at the bottom of the cab, wherein the first suspension component 21 can be installed or removed depending on the length of the cab; the second suspension component 22 is a pivot structure, and the cab and the frame can rotate at this suspension position to reduce the load.

[0049] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0050] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0051] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cab suspension mounting device, characterized in that: It includes a frame assembly (1), a suspension assembly (2), and a floor assembly (3); the suspension assembly (2) is connected to the frame assembly (1) and the floor assembly (3) respectively, and the frame assembly (1) and the floor assembly (3) can rotate along the suspension assembly (2).

2. The cab suspension mounting device as described in claim 1, characterized in that: The suspension assembly (2) includes a first suspension member (21) and a second suspension member (22); the first suspension member (21) is connected to the floor assembly (3), and the second suspension member (22) is rotatably connected to the floor assembly (3) and the frame assembly (1).

3. The cab suspension mounting device as described in claim 2, characterized in that: The second suspension component (22) includes a floor longitudinal beam connector (221), a frame crossbeam connector (222), and a rotating component (223); the floor longitudinal beam connector (221) is connected to the frame crossbeam connector (222) through the rotating component (223), and the floor longitudinal beam connector (221) and the frame crossbeam connector (222) can rotate around the rotating component (223).

4. The cab suspension mounting device as described in claim 3, characterized in that: The floor longitudinal beam connector (221) is connected to the floor assembly (3), and the frame crossbeam connector (222) is connected to the frame assembly (1).

5. The cab suspension mounting device as described in claim 2, characterized in that: The first suspension (21) includes a first suspension (211) and a second suspension (212); the first suspension (211) is connected to the frame assembly (1), the second suspension (212) is disposed on the frame assembly (1), and the second suspension (212) is connected to the floor assembly (3).

6. The cab suspension mounting device as described in claim 5, characterized in that: The first suspension (21) also includes a third suspension (213); the third suspension (213) is disposed on one side of the second suspension (212), and the third suspension (213) is connected to the floor assembly (3) and the frame assembly (1).

7. The cab suspension mounting device as described in any one of claims 2 to 6, characterized in that: The frame assembly (1) includes a front longitudinal beam (11) and a frame crossbeam (12); the front longitudinal beam (11) is connected by a second suspension member (22), and one side of the front longitudinal beam (11) is connected to a first suspension member (21); the front longitudinal beam (11) and the frame crossbeam (12) can rotate around the second suspension member (22).

8. The cab suspension mounting device as described in claim 7, characterized in that: The frame assembly (1) also includes a mid-section longitudinal beam (13) and a side section longitudinal beam (14); the frame crossbeam (12) is connected to the mid-section longitudinal beam (13) and the side section longitudinal beam (14) respectively, and the frame crossbeam (12) can support the mid-section longitudinal beam (13) and the side section longitudinal beam (14).

9. The cab suspension mounting device as described in any one of claims 2 to 6, characterized in that: The floor assembly (3) includes a cab floor longitudinal beam (31) and a longitudinal beam support plate (32); one end of the cab floor longitudinal beam (31) is connected to the longitudinal beam support plate (32), and the longitudinal beam support plate (32) is connected to the second suspension member (22).

10. The cab suspension mounting device as described in claim 5, characterized in that: The first suspension (211), the second suspension (212) and the third suspension (213) are inverted L-shaped.