A motor home chassis preventing deformation of an upper portion

Abstract

The utility model relates to the field of house car facilities, concretely relates to a house car chassis of preventing upper loading part deformation, including chassis body, the chassis body bottom side is provided with reinforcing structure, this reinforcing structure includes the front reinforcing frame, middle reinforcing frame and rear reinforcing frame that set gradually from front to back, the chassis with the reinforcing structure forms integrated load bearing frame, the front reinforcing frame includes front bottom support and front side support, the middle reinforcing frame includes middle bottom support and middle side support, the rear reinforcing frame includes rear bottom support and rear side support, the front bottom support, middle bottom support and rear bottom support constitute support reinforcing structure, through support and connection reinforcing structure restrain horizontal deformation, disperse upper load, solve the problem that traditional chassis is not enough to resist torsion, luggage storehouse distributes in wheel arch both sides, utilizes non -running area space, with the room in the car each other corresponds, solve the problem that traditional chassis space is not reasonable in partition, improve utilization and activity convenience.

Description

Technical Field

[0001] This utility model relates to the field of RV facilities, specifically to an RV chassis that prevents deformation of the superstructure. Background Technology

[0002] In the RV industry, the vast majority of current RV chassis are not designed specifically for RV use, but rather reuse truck or minibus chassis. While this design reduces development costs, it severely restricts the realization of RV functionality. Truck chassis, focused on cargo transport, offer high load-bearing capacity and durability, but suffer from significant deficiencies in comfort, spatial layout, and compatibility with RV superstructure facilities. Minibus chassis, while offering better handling, struggle to meet the demands for space expansion and the stability of the RV superstructure, resulting in existing RVs failing to fully realize the functional requirements of a high-quality travel and living experience.

[0003] Specifically, existing RV chassis generally adopt a structure with front and rear through-beams and a central tie beam. When the vehicle travels on rugged mountain roads, potholed dirt roads, and other complex road conditions, the body is subjected to impact forces and torques from different directions. Because the chassis structure cannot efficiently disperse external forces, stress concentrates in localized areas, limiting its torsional resistance. Even with front and rear axle shock absorbers and leaf springs, it is still impossible to eliminate the deformation forces caused by uneven road surfaces. This deformation is directly transmitted to the superstructure, causing deformation and cracking, loosening at joints, and abnormal noises, seriously affecting the comfort of travel.

[0004] Limited modifications are made to the existing chassis, but the layout requirements of facilities such as large-capacity water tanks and on-board kitchens that are actually needed for the use of the chassis do not match, resulting in insufficient functional compatibility between the chassis and the superstructure. The barriers between the two hinder technological innovation in RV modification.

[0005] In conclusion, existing RV chassis cannot meet the requirements of travel and living scenarios for comfort, functionality, and space utilization. There is an urgent need for a chassis specifically designed for RV conversion to solve the above-mentioned shortcomings. Utility Model Content

[0006] The purpose of this utility model is to provide a motorhome chassis that prevents deformation of the superstructure in order to solve the above-mentioned problems. The front, middle and rear reinforcing frames form an integrated frame, and the support and connection strengthen the structure to suppress lateral deformation, distribute the load of the superstructure, and solve the problem of insufficient torsional resistance of traditional chassis. The luggage compartment is distributed on both sides of the wheel arches, utilizing the space in the non-driving area and corresponding to the interior room, solving the problem of unreasonable space division and zoning of traditional chassis, and improving utilization and ease of movement. The wheel arch water tank and the central water tank are symmetrically embedded to balance the chassis load, avoid the decrease in handling, optimize space utilization and driving stability, as detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This utility model provides a motorhome chassis for preventing deformation of the upper structure, including a chassis body. A reinforcing structure is provided on the bottom side of the chassis body. The reinforcing structure includes a front reinforcing frame, a middle reinforcing frame and a rear reinforcing frame arranged sequentially from front to back. The chassis and the reinforcing structure form an integrated load-bearing frame.

[0009] The front reinforcement frame includes a front bottom support and a front side support; the middle reinforcement frame includes a middle bottom support and a middle side support; and the rear reinforcement frame includes a rear bottom support and a rear side support. The front bottom support, middle bottom support, and rear bottom support form a support reinforcement structure to enhance the chassis's torsional stiffness and suppress lateral deformation during driving. The front side support, middle side support, and rear side support form a connection reinforcement structure to support the chassis's vertical load and evenly distribute the weight of the superstructure.

[0010] Preferably, the front bottom support, middle bottom support, and rear bottom support in the support reinforcement structure are fixedly connected to the corresponding side supports to form an anti-torsional support network to suppress the lateral deformation of the chassis on rough roads.

[0011] Preferably, the front side support, middle side support, and rear side support in the connecting reinforcement structure are connected to the sides of adjacent bottom supports. The connecting reinforcement structure acts as a grid-like diagonal shear support distributed along the length of the vehicle body, keeping the upper structure of the vehicle body stable and undeformed, enhancing the strength of the vehicle body structure, and transferring the vertical load of the superstructure to the chassis frame to avoid local stress concentration.

[0012] Preferably, a luggage compartment integrated with the chassis body is provided below the integrated load-bearing frame. The luggage compartment includes a front storage cavity, a middle storage cavity, and a rear storage cavity. The front storage cavity and the middle storage cavity are respectively located on both sides of the front wheel arch, and the middle storage cavity and the rear storage cavity are respectively located on both sides of the rear wheel arch.

[0013] Preferably, a wheel arch water tank fixed at the wheel arch and a central water tank in the middle of the chassis body are also provided. The central water tank is embedded inside the chassis body to balance the load of the chassis body.

[0014] Preferably, the layout of the front storage cavity, the middle storage cavity, and the rear storage cavity corresponds to the room areas inside the RV.

[0015] Preferably, the front reinforcing frame, the middle reinforcing frame, and the rear reinforcing frame are all made of high-strength steel and are fixed to the chassis body by welding.

[0016] The beneficial effects are as follows: 1. This utility model forms a supporting reinforcement structure and a side connection reinforcement structure by setting a front reinforcement frame, a middle reinforcement frame and a rear reinforcement frame in sequence from front to back. The structure realizes an integrated load-bearing frame. This frame can effectively suppress lateral deformation during driving, and at the same time evenly distribute the vertical load of the upper structure, avoiding the problem of local deformation caused by stress concentration in traditional chassis. It solves the problem of insufficient torsional resistance of existing chassis from the structural design.

[0017] 2. The anti-torsional support network formed by the supporting and connecting reinforcement structures can suppress the lateral torsion of the chassis through rigid connection when the vehicle is driving on rough roads. Combined with the overall rigid design of the integrated load-bearing frame, it reduces the transmission of road impact force to the upper structure. Compared with traditional chassis, it can effectively reduce the risk of upper structure deformation and cracking, and abnormal noise at the splicing points, and improve the comfort of travel.

[0018] 3. An integrated luggage compartment is set under the integrated load-bearing frame and integrated with the chassis body, including a front storage compartment, a middle storage compartment and a rear storage compartment, which are distributed on both sides of the front wheel arch and the rear wheel arch respectively. This layout makes full use of the non-driving area space of the chassis, and the storage compartment is adapted to correspond with the room area inside the RV. It solves the problem of unreasonable space division caused by the fixed layout of the driver's cab in traditional chassis, and improves the utilization rate of interior space and the convenience of personnel movement.

[0019] 4. The wheel arch water tanks at the wheel arches and the central water tank embedded in the middle of the chassis, through symmetrical layout and embedded design, effectively balance the chassis load while meeting the large-capacity water storage requirements, avoiding the problem of reduced handling due to load offset. Compared with the randomness of traditional chassis water tank layout, this design optimizes space utilization efficiency and improves vehicle driving stability. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0021] Figure 1 This is the main view structural diagram of this utility model;

[0022] Figure 2 This is a top view of the structure of this utility model;

[0023] Figure 3 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 4This is a three-dimensional structural diagram of another aspect of the present invention;

[0025] Figure 5 This is the main view structural diagram of the RV superstructure frame of this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the RV upper frame of this utility model.

[0027] The annotations in the attached figures are explained as follows:

[0028] 1. Chassis body; 2. Front reinforcement frame; 201. Front bottom support; 202. Front side support; 3. Front storage compartment; 4. Front wheel arch; 5. Middle reinforcement frame; 501. Middle bottom support; 502. Middle side support; 6. Middle storage compartment; 7. Rear wheel arch; 8. Rear reinforcement frame; 801. Rear bottom support; 802. Rear side support; 9. Rear storage compartment; 10. Wheel arch water tank; 11. Central water tank. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] See Figures 1-6 As shown, this utility model provides a motorhome chassis that prevents deformation of the superstructure, including a chassis body 1. The chassis body 1 has a reinforcing structure on its bottom side. The reinforcing structure includes a front reinforcing frame 2, a middle reinforcing frame 5 and a rear reinforcing frame 8 arranged sequentially from front to back. The chassis and the reinforcing structure form an integrated load-bearing frame, providing a rigid support foundation for the motorhome superstructure frame and dispersing external forces during driving through the overall structure.

[0031] The front reinforcement frame 2 includes a front bottom support 201 and a front side support 202; the middle reinforcement frame 5 includes a middle bottom support 501 and a middle side support 502; and the rear reinforcement frame 8 includes a rear bottom support 801 and a rear side support 802. The front bottom support 201, the middle bottom support 501, and the rear bottom support 801 form a support reinforcement structure to enhance the chassis's torsional stiffness and suppress lateral deformation during driving. The front side support 202, the middle side support 502, and the rear side support 802 form a connection reinforcement structure to support the chassis's vertical load and evenly distribute the weight of the superstructure.

[0032] As an optional implementation, the front bottom support 201, the middle bottom support 501, and the rear bottom support 801 in the support reinforcement structure are fixedly connected to the corresponding side supports to form an anti-torsional support network to suppress the lateral deformation of the chassis on rough roads. With this configuration, a three-dimensional force-bearing structure is formed through the rigid connection between the bottom support and the side support, which can quickly transmit stress when the chassis is subjected to lateral torque and avoid local torsion.

[0033] The front side support 202, middle side support 502, and rear side support 802 in the connecting reinforcement structure connect to the sides of adjacent bottom supports. The connecting reinforcement structure acts as a grid-like diagonal shear support distributed along the length of the vehicle body, keeping the upper structure of the vehicle body stable and free from deformation, enhancing the strength of the vehicle body structure, and transferring the vertical load of the superstructure to the chassis frame to avoid local stress concentration. It is used to support the side load of the superstructure and assist in fixing the position of the superstructure. This setting can make the vertical load of the superstructure evenly distributed to the entire frame and reduce the risk of loosening at the connection between the superstructure and the chassis.

[0034] A luggage compartment, integrated with the chassis body 1, is set under the integrated load-bearing frame for storing travel supplies and installing in-vehicle living facilities. The luggage compartment includes a front storage cavity 3, a middle storage cavity 6, and a rear storage cavity 9. The front storage cavity 3 and the middle storage cavity 6 are respectively located on both sides of the front wheel arch 4, and the middle storage cavity 6 and the rear storage cavity 9 are respectively located on both sides of the rear wheel arch 7. This arrangement can make full use of the idle space around the wheel arches and avoid occupying the core driving area of ​​the chassis.

[0035] It is also equipped with a wheel arch water tank 10 fixed at the wheel arch and a central water tank 11 in the middle of the chassis body 1. The central water tank 11 is embedded inside the chassis body 1 to balance the load of the chassis body 1. This arrangement facilitates the balancing of the front, rear and left and right loads of the chassis, and also facilitates the replenishment and use of water resources according to the travel needs.

[0036] The layout of the front storage compartment 3, the middle storage compartment 6, and the rear storage compartment 9 corresponds to the room areas inside the RV, which is used to enable convenient passage between the driver's area and the living area for the occupants, as well as quick access to supplies, thereby improving the continuity and efficiency of the RV's interior space.

[0037] The front reinforcing frame 2, the middle reinforcing frame 5, and the rear reinforcing frame 8 are all made of high-strength steel and are fixed to the chassis body 1 by welding, thereby improving the overall rigidity and fatigue resistance of the frame and ensuring that the structural stability does not decrease during long-term use.

[0038] Specifically, the front storage cavity 3 is used to install the black water tank, waste water tank and grey water tank, with the black water tank and grey water tank located on both sides of the waste water tank; the middle storage cavity 6 serves as the battery compartment, and by integrating the battery into the chassis body 1, an integrated battery chassis structure is formed to reduce the space occupied by the battery when electricity is used as the driving source.

[0039] Using the above structure, the onboard kitchen, sleeping area, and storage modules of the RV's superstructure are installed in the front storage cavity 3, middle storage cavity 6, and rear storage cavity 9 of the chassis. The weight of the superstructure is evenly distributed through the support and reinforcement structure of the front reinforcement frame 2, middle reinforcement frame 5, and rear reinforcement frame 8. The connecting reinforcement structure further assists in fixing the sides of the superstructure, ensuring a rigid connection between the superstructure and the integrated load-bearing frame of the chassis, avoiding localized load concentration after installation. The chassis, through the overall rigidity of the integrated frame, combined with the support and connecting reinforcement structure, stably transmits the load of the superstructure. The symmetrical arrangement of the wheel arch water tank 10 and the central water tank 11... The chassis balances the center of gravity, ensuring stable driving. When the chassis body 1, as the main supporting and reinforcing structure of the vehicle, travels on rough and potholed roads, the anti-torsional support network formed by the front, middle and rear reinforcing frames 8 suppresses lateral deformation through rigid connection. The reinforcing frames and chassis body 1 work together to offset the impact force of the road surface, reduce the torsion of the chassis body 1, and prevent the upper structure from cracking or making abnormal noise due to deformation, ensuring a quiet interior. During long-distance driving, multiple storage cavities form a luggage compartment that corresponds to the upper structure's room area. The large-capacity water storage of the wheel arch water tank 10 and the central water tank 11 meets the water needs of long-distance travel, eliminating the need for frequent stops to refill water.

[0040] In this way, the front reinforcing frame 2, the middle reinforcing frame 5 and the rear reinforcing frame 8 are arranged sequentially from front to back to form a supporting reinforcing structure and a side connecting reinforcing structure, thus realizing an integrated load-bearing frame. This frame can effectively suppress lateral deformation during driving, while evenly distributing the vertical load of the upper structure, avoiding the problem of local deformation caused by stress concentration in traditional chassis, and solving the problem of insufficient torsional resistance of existing chassis from the structural design perspective.

[0041] The anti-torsional support network formed by the supporting and connecting reinforcement structures can suppress the lateral torsion of the chassis through rigid connection when the vehicle is driving on rough roads. Combined with the overall rigid design of the integrated load-bearing frame, it reduces the transmission of road impact force to the upper structure. Compared with traditional chassis, it can effectively reduce the risk of upper structure deformation and cracking, and abnormal noise at the splicing points, thus improving the comfort of travel.

[0042] The integrated load-bearing frame is equipped with a luggage compartment integrated with the chassis body 1, including a front storage cavity 3, a middle storage cavity 6 and a rear storage cavity 9, which are distributed on both sides of the front wheel arch 4 and the rear wheel arch 7 respectively. This layout makes full use of the non-driving area space of the chassis, and the storage cavities are adapted to correspond with the room area inside the RV. It solves the problem of unreasonable space division and zoning caused by the fixed layout of the driver's cab in traditional chassis, and improves the utilization rate of interior space and the convenience of personnel movement.

[0043] The wheel arch water tank 10 at the wheel arch and the central water tank 11 embedded in the middle of the chassis, through symmetrical layout and embedded design, can effectively balance the chassis load while meeting the large capacity water storage requirements, and avoid the problem of reduced handling due to load offset. Compared with the randomness of traditional chassis water tank layout, this design optimizes space utilization efficiency and improves vehicle driving stability.

[0044] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A motorhome chassis designed to prevent deformation of the superstructure, characterized in that, Includes a chassis body (1), the chassis body (1) is provided with a reinforcing structure on the bottom side, the reinforcing structure includes a front reinforcing frame (2), a middle reinforcing frame (5) and a rear reinforcing frame (8) arranged sequentially from front to back, the chassis and the reinforcing structure form an integrated load-bearing frame; The front reinforcement frame (2) includes a front bottom support (201) and a front side support (202). The middle reinforcement frame (5) includes a middle bottom support (501) and a middle side support (502). The rear reinforcement frame (8) includes a rear bottom support (801) and a rear side support (802). The front bottom support (201), the middle bottom support (501), and the rear bottom support (801) form a support reinforcement structure to enhance the chassis torsional stiffness and suppress lateral deformation during driving. The front side support (202), the middle side support (502), and the rear side support (802) form a connection reinforcement structure to support the vertical load of the chassis and evenly distribute the weight of the superstructure.

2. The RV chassis for preventing deformation of the superstructure as described in claim 1, characterized in that, The front bottom support (201), middle bottom support (501), and rear bottom support (801) in the support reinforcement structure are fixedly connected to the corresponding side supports to form an anti-torsional support network to suppress the lateral deformation of the chassis on rough roads.

3. The RV chassis for preventing deformation of the superstructure as described in claim 1, characterized in that, The front side support (202), middle side support (502), and rear side support (802) in the connection reinforcement structure connect the sides of adjacent bottom supports. The connection reinforcement structure acts as a grid-like diagonal shear support distributed along the length of the vehicle body, keeping the upper structure of the vehicle body stable and undeformed, enhancing the strength of the vehicle body structure, and transferring the vertical load of the upper structure to the chassis frame to avoid local stress concentration.

4. The RV chassis for preventing deformation of the superstructure as described in claim 1, characterized in that, The integrated load-bearing frame is provided with a luggage compartment integrated with the chassis body (1) below it. The luggage compartment includes a front storage cavity (3), a middle storage cavity (6) and a rear storage cavity (9). The front storage cavity (3) and the middle storage cavity (6) are respectively located on both sides of the front wheel arch (4), and the middle storage cavity (6) and the rear storage cavity (9) are respectively located on both sides of the rear wheel arch (7).

5. The RV chassis for preventing deformation of the superstructure according to claim 4, characterized in that, It is also provided with a wheel arch water tank (10) fixed at the wheel arch and a central water tank (11) in the middle of the chassis body (1). The central water tank (11) is embedded inside the chassis body (1) to balance the load of the chassis body (1).

6. The RV chassis for preventing deformation of the superstructure according to claim 5, characterized in that, The layout of the front storage cavity (3), the middle storage cavity (6), and the rear storage cavity (9) corresponds to the interior room areas of the RV.

7. The RV chassis for preventing deformation of the superstructure according to any one of claims 1-6, characterized in that, The front reinforcing frame (2), the middle reinforcing frame (5) and the rear reinforcing frame (8) are all made of high-strength steel and are fixed to the chassis body (1) by welding.

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