Chassis damping mechanism of motor home

By designing a triangular structure and telescopic components on the RV chassis, combined with dampers and return springs, the problem of insufficient shock absorption of the traditional RV chassis shock absorption system under complex road conditions is solved, and better shock absorption effect and structural stability are achieved.

CN223370548UActive Publication Date: 2025-09-23ZHEJIANG FEISHEN VEHICLE IND CO LTD
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Patent Information

Application Number
CN202423055620.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-09-23
Estimated Expiration
2034-12-11

AI Technical Summary

Technical Problem

The traditional RV chassis shock absorption system has poor shock absorption effect under complex road conditions, especially when driving at high speed or encountering large bumps, it cannot effectively absorb vibrations.

Method used

The triangular structure design forms a stable triangle between the frame, wheel assembly and shock absorption mechanism. The telescopic assembly and damper are combined to enhance the overall structural rigidity and stability. The damper and return spring work together to achieve rapid recovery.

Benefits of technology

It improves the shock absorption effect of the RV under complex road conditions, enhances the stability and anti-fatigue performance of the structure, and reduces the risk of component damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of motor homes, in particular to a chassis damping mechanism of a motor home. The four groups of wheel group mounting assemblies are symmetrically distributed in pairs; the four groups of damping mechanisms are symmetrically distributed in pairs and are arranged between the frame and the wheel set mounting assembly, a single group of damping mechanism comprises a damper, the damper is sleeved with a reset spring, the top of the damper is mounted on the frame, and the bottom of the damper is connected to the wheel set mounting assembly; the two fixing frames are mounted at the bottom of the frame; each telescopic assembly comprises a sleeve, one end of the sleeve is provided with a first fixing ring, and the first fixing ring is rotationally arranged on the fixing frame; the connecting rod is arranged in the sleeve in a sliding mode, and a second fixing ring is installed at one end of the connecting rod; the wheel set mounting assembly and the damping mechanism are respectively connected to different positions of the frame, and a triangular structure is formed among the frame, the wheel set mounting assembly and the damping mechanism.
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Description

Technical Field

[0001] The present application relates to the technical field of recreational vehicles, and in particular to a chassis shock absorbing mechanism of a recreational vehicle. Background Art

[0002] With the increasing popularity of RV travel, people are placing higher demands on the comfort and handling stability of RVs. Traditional RV chassis damping systems typically use a simple combination of springs and shock absorbers. While these systems can absorb road vibrations to a certain extent, their damping effect is often unsatisfactory in complex road conditions, especially when driving at high speeds or encountering large bumps.

[0003] In this regard, the present application proposes a chassis shock absorbing mechanism for a recreational vehicle to solve this problem. Summary of the Invention

[0004] The purpose of this application is to solve at least one of the technical deficiencies.

[0005] To this end, one purpose of the present application is to propose a chassis shock-absorbing mechanism for a recreational vehicle to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned objectives, an embodiment of one aspect of the present application provides a chassis shock-absorbing mechanism of a motorhome, comprising: a frame; four groups of wheel mounting assemblies symmetrically distributed in pairs; four groups of shock-absorbing mechanisms symmetrically distributed in pairs, arranged between the frame and the wheel mounting assemblies, a single group of the shock-absorbing mechanisms comprising: a damper, the damper being provided with a return spring, the top of the damper being mounted on the frame, and the bottom of the damper being connected to the wheel mounting assembly; two fixing frames, both mounted on the bottom of the frame; two telescopic assemblies, a single telescopic assembly comprising: a sleeve, one end of which is mounted with a first fixing ring, the first fixing ring being rotatably arranged on the fixing frame; a connecting rod, slidably arranged in the sleeve, one end of the connecting rod being mounted with a second fixing ring; the wheel mounting assembly and the shock-absorbing mechanism are respectively connected to different positions of the frame, forming a triangular structure between the frame, the wheel mounting assembly and the shock-absorbing mechanism.

[0007] Preferably, any of the above solutions is that four groups of connecting frames symmetrically distributed in pairs are installed at the bottom of the frame, and each group includes two connecting frames for cooperating with the wheel assembly mounting assembly.

[0008] Preferably, any of the above schemes is that a single set of wheel assembly mounting components includes: two fixing rods, one end of each fixing rod is equipped with a positioning ring, and the positioning ring is rotatably set on the connecting frame, one of the fixing rods is a bent part, one end of the fixing rod is connected to the other fixing rod, and the two fixing rods are also connected by a cross bar; a positioning frame, connected to the bottom of the damper, the positioning frame is installed on one of the fixing rods, two positioning rods are installed on the positioning frame, and the second fixing ring is rotatably set on the positioning rod.

[0009] Preferably, from any of the above schemes, a single set of the wheel assembly installation assembly further comprises: a single set of the wheel assembly installation assembly further comprises a movable wheel, which is installed in one of the fixed rods via a support rod.

[0010] Preferably, from any of the above solutions, one end of the return spring is connected to the vehicle frame, and the other end of the return spring is connected to the positioning frame.

[0011] Compared with the prior art, the advantages and beneficial effects of this application are:

[0012] The triangular structural design forms a stable triangle between the frame, wheel mounting assembly and shock absorber mechanism, enhancing the rigidity and stability of the overall structure. The sleeve and connecting rod in the telescopic assembly are rotated by the fixing frame and positioning ring, making the entire shock absorber mechanism more stable when subjected to various loads and reducing the risk of fatigue damage.

[0013] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 This is a schematic diagram of the final assembly according to an embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the installation of a telescopic assembly according to an embodiment of the present application;

[0017] Figure 3 This is a schematic diagram of the crossbar installation according to an embodiment of the present application.

[0018] In the figure: 1. frame, 2. wheel assembly mounting assembly, 21. fixing rod, 22. positioning ring, 23. cross bar, 24. positioning frame, 25. positioning rod, 26. moving wheel, 27. support rod, 3. shock absorbing mechanism, 31. damper, 3101. return spring, 32. fixing frame, 33. telescopic assembly, 3301. sleeve, 3302. first fixing ring, 3303. connecting rod, 3304. second fixing ring, 4. connecting frame. DETAILED DESCRIPTION

[0019] like Figures 1 to 3 As shown, a chassis shock-absorbing mechanism of a recreational vehicle includes a frame 1, a wheel assembly mounting assembly 2 and a shock-absorbing mechanism 3.

[0020] Furthermore, four groups of connecting frames 4 symmetrically distributed in pairs are installed at the bottom of the frame 1, and each group includes two connecting frames 4 for cooperating with the wheel assembly mounting assembly 2.

[0021] Furthermore, the wheel assembly mounting components 2 are four in total, and are symmetrically distributed in pairs. Each wheel assembly mounting component 2 includes:

[0022] Two fixing rods 21, one end of each fixing rod 21 is provided with a positioning ring 22, and the positioning ring 22 is rotatably mounted on the connecting frame 4. One of the fixing rods 21 is a bent member, and its bending angle is greater than 90 degrees. One end of the fixing rod 21 is connected to the other fixing rod 21, and the two fixing rods 21 are further connected by a cross bar 23. The two fixing rods 21 and the cross bar 23 are connected by welding.

[0023] A positioning frame 24, the positioning frame 24 is mounted on one of the fixing rods 21, and two positioning rods 25 are mounted on the positioning frame 24;

[0024] Specifically, the positioning frame 24 is installed on the bent fixing rod 21;

[0025] The single set of wheel assembly mounting components 2 also includes a movable wheel 26, which is installed in one of the fixed rods 21 through a support rod 27. The movable wheel 26 and the support rod 27 are connected by bolts, which facilitates modification of the state between the movable wheel 26 and the support rod 27 (two states of combination and disassembly), and facilitates installation or replacement.

[0026] Furthermore, the shock absorbing mechanisms 3 are divided into four groups, which are symmetrically distributed in pairs. Each group of the shock absorbing mechanisms 3 includes:

[0027] A damper 31 , wherein a return spring 3101 is sleeved on the damper 31 , the top of the damper 31 is mounted on the vehicle frame 1 , and the bottom of the damper 31 is connected to the positioning frame 24 ;

[0028] Two fixing brackets 32 are both installed at the bottom of the frame 1;

[0029] Two telescopic assemblies 33, each of which comprises:

[0030] The sleeve 3301 has a first fixing ring 3302 mounted on one end thereof, and the first fixing ring 3302 is rotatably mounted on the fixing frame 32;

[0031] A connecting rod 3303 is slidably disposed in the sleeve 3301 , and a second fixing ring 3304 is mounted on one end of the connecting rod 3303 , and the second fixing ring 3304 is rotatably disposed on the positioning rod 25 ;

[0032] One end of the return spring 3101 is connected to the vehicle frame 1 , and the other end of the return spring 3101 is connected to the positioning bracket 24 . The setting of the return spring 3101 enables the damper 31 to quickly return to its initial state.

[0033] Furthermore, the wheel assembly mounting assembly 2 and the shock absorbing mechanism 3 are respectively connected to different positions of the vehicle frame 1 , and a triangular structure is formed between the vehicle frame 1 , the wheel assembly mounting assembly 2 and the shock absorbing mechanism 3 .

[0034] A chassis shock absorption mechanism for a recreational vehicle, the working principle of which is as follows:

[0035] When the RV is towed and moves, if it encounters a bumpy road section, the wheels will move up and down, driving the support rod 27, and then driving the fixed rod 21 connected to the support rod 27 to deflect under the limit of the positioning ring 22 and the connecting frame 4. The positioning frame 24 also follows the movement to compress the damper 31 and the return spring 3101. The positioning frame 24 also synchronously drives the connecting rod 3303 to move into the sleeve 3301. When passing through a bumpy section, the damper 31 and the return spring 3101 begin to rebound, and the connecting rod 3303 extends out of the sleeve 3301 and returns to its initial state.

Claims

1. A chassis shock absorbing mechanism for a recreational vehicle, characterized in that: include: Frame; Four sets of wheel mounting components are symmetrically distributed in pairs; Four groups of shock absorbing mechanisms are symmetrically distributed in pairs and are arranged between the frame and the wheel assembly. Each group of shock absorbing mechanisms includes: A damper, wherein a return spring is sleeved on the damper, the top of the damper is mounted on the frame, and the bottom of the damper is connected to the wheel assembly; Two fixing brackets, both mounted on the bottom of the frame; Two telescopic assemblies, each of which comprises: A sleeve, one end of which is mounted with a first fixing ring, the first fixing ring being rotatably mounted on the fixing frame; a connecting rod, slidably disposed in the sleeve, with a second fixing ring mounted on one end of the connecting rod; The wheel assembly and the shock absorbing mechanism are respectively connected to different positions of the frame, and a triangular structure is formed between the frame, the wheel assembly and the shock absorbing mechanism.

2. The chassis shock absorbing mechanism of a recreational vehicle according to claim 1, characterized in that: Four groups of connecting frames symmetrically distributed in pairs are installed at the bottom of the frame, and each group includes two connecting frames for cooperating with the wheel assembly mounting assembly.

3. The chassis shock absorbing mechanism of a recreational vehicle according to claim 2, characterized in that: A single set of wheel assembly components includes: Two fixing rods, one end of each fixing rod is provided with a positioning ring, and the positioning ring is rotatably arranged on the connecting frame, wherein one of the fixing rods is a bent part, one end of which is connected to the other fixing rod, and the two fixing rods are further connected by a crossbar; The positioning frame is connected to the bottom of the damper, and the positioning frame is installed on one of the fixing rods. Two positioning rods are installed on the positioning frame, and the second fixing ring is rotatably set on the positioning rods.

4. The chassis shock absorbing mechanism of a recreational vehicle according to claim 3, characterized in that: A single set of wheel assembly further comprises a movable wheel mounted in one of the fixed rods via a support rod.

5. The chassis shock absorbing mechanism of a recreational vehicle according to claim 4, characterized in that: One end of the return spring is connected to the vehicle frame, and the other end of the return spring is connected to the positioning bracket.