Lightweight vehicle body structure of motor home

By using an all-aluminum body structure and components such as movable fixing rods and magnets, the problem of aluminum frame loosening was solved, achieving body stability and lightweighting, while also improving thermal insulation performance.

CN223750973UActive Publication Date: 2026-01-02BEIJING SANXING AUTOMOBILE
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Patent Information

Application Number
CN202520017402.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2026-01-02
Estimated Expiration
2035-01-06

AI Technical Summary

Technical Problem

In existing lightweight RV body structures, the aluminum frame, which is fixed with screws, is prone to rust and loosening, affecting the stability and safety of the vehicle body.

Method used

The all-aluminum body structure uses polyurethane flame-retardant foam board as the middle layer, and the aluminum frame is stably fixed by components such as movable fixing rods, magnets and springs to prevent loosening.

Benefits of technology

It improves the strength and stability of the vehicle body, reduces the vehicle weight, and enhances the insulation of heat exchange between the inside and outside of the vehicle through the flame-retardant properties and thermal insulation effect of polyurethane foam boards.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a limo light body structure, including first aluminium skeleton, polyurethane flame retardant foam board, aluminium skin and second aluminium skeleton, the top of first aluminium skeleton is provided with the fixed slot, the fixed slot is equipped with the fixed rod in the sliding way, the fixed rod one end extends into the fixed slot, the other end extends out of the fixed slot, the fixed rod is fixed in the fixed slot, the polyurethane flame retardant foam board is fixed in the fixed slot, and the aluminium skin is fixed in the fixed slot. A transverse rod is fixedly installed on one side of the fixing rod, and a sliding groove is formed in one side of the bottom of the transverse rod. The vehicle body is the all-aluminum vehicle body, the built-in aluminum framework and the external aluminum skin are arranged, the middle interlayer is the polyurethane flame-retardant foam board, the all-aluminum vehicle body has high vehicle body strength, the weight of the vehicle body is reduced, the middle interlayer is the polyurethane flame-retardant foam board, heat exchange between the interior and the exterior of the vehicle can be better prevented, and therefore the heat preservation effect can be effectively achieved, and the service life of the vehicle is prolonged. The flame retardant grade of the polyurethane foam board is grade A. The aluminum framework is fixed through the movable fixing rods, so that the situation that the aluminum framework is loosened after long-time use is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a house car light weight body structure technical field, concretely to a house car light weight body structure. BACKGROUND

[0002] At present, domestic house car structure mainly has two categories, full glass steel body and full iron body. The glass steel body reduces the body weight, but the strength and repairable performance are slightly poor. The service life of domestic glass steel is basically 3-5 years, and the basic service life of imported glass steel is 5-8 years. The original value is almost zero after scrapping. The full iron body increases the body weight, makes the load of the house car too large, and the risk coefficient increases.

[0003] But the existing house car light weight body structure still has some problems when using:

[0004] The existing vehicle-mounted aluminum framework is fixed by screws. Due to long-term use, the screws are very prone to rust, so that the aluminum framework is loose.

[0005] In view of the above problems, the original house car light weight body structure is innovatively designed. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a house car light weight body structure to solve the fixed problem in the above background technology.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a house car light weight body structure, including first aluminum framework, polyurethane flame-retardant foam board, aluminum skin and second aluminum framework, the top of first aluminum framework is provided with fixed slot, the fixed slot is slidably installed with fixed rod, one end of fixed rod extends into fixed slot, the other end of fixed rod extends to outside of fixed slot, the side of fixed rod is fixedly installed with cross bar, the bottom side of cross bar is provided with sliding slot, the sliding slot is slidably installed with sliding block, one end of sliding block extends into sliding slot, the other end of sliding block extends to outside of sliding slot, the top of second aluminum framework is provided with groove, the groove is slidably installed with vertical rod, one end of vertical rod extends into groove, the other end of vertical rod extends to outside of groove, one end of sliding block extending to outside of sliding slot is fixedly connected with the top of vertical rod.

[0008] The side inner wall of groove is provided with moving slot, the moving slot is slidably installed with moving block, one end of moving block extends into moving slot, the other end of moving block extends to outside of moving slot, one end of moving block extending to outside of moving slot is fixedly connected with the side of vertical rod.

[0009] The side inner wall of moving slot is provided with clamping slot, one end of moving block is sleeved with clamping rod.

[0010] One end of the clamping rod is fixedly provided with a first magnet, and a second magnet is fixedly arranged on the inner wall of one side of the clamping groove.

[0011] A sliding hole is formed in the top inner wall of the moving groove, a sliding rod is slidably arranged in the sliding hole, one end of the sliding rod extends into the moving groove, the other end of the sliding rod extends out of the moving groove, and the end of the sliding rod extending into the moving groove is fixedly connected with the top of the clamping rod.

[0012] Preferably, the fixing rod is in L-shaped structure and is matched with the fixing groove.

[0013] The fixing rod is used for fixing the aluminum framework.

[0014] Preferably, the moving block is arranged on the inner wall of the side of the groove away from the fixing rod.

[0015] The moving block is used for driving the vertical rod to move up and down.

[0016] Preferably, one end of the first spring is fixedly arranged on the inner wall of one side of the clamping rod, and the other end of the first spring is fixedly connected with one side of the moving block.

[0017] The clamping rod is used for fixing the vertical rod after moving.

[0018] Preferably, the first magnet is arranged at the end of the clamping rod away from the moving block, and the first magnet is close to the second magnet.

[0019] The first magnet and the second magnet are used for fixing the clamping rod.

[0020] Preferably, the sliding rod is arranged at the top of the clamping rod.

[0021] The sliding rod is used for driving the clamping rod to move horizontally.

[0022] Compared with the prior art, the utility model has the advantages that:

[0023] The vehicle body is a full-aluminum vehicle body, the aluminum framework is arranged in the vehicle body, the aluminum skin is arranged outside the vehicle body, the polyurethane flame-retardant foam board is arranged in the middle layer, the full-aluminum vehicle body has high vehicle body strength and light weight, the polyurethane flame-retardant foam board can better prevent heat exchange between the inside and outside of the vehicle, thereby effectively playing a heat preservation role, the flame-retardant grade of the polyurethane foam board is A grade, the aluminum framework is fixed by the movable fixing rod, and the loosening of the aluminum framework after long-time use is avoided. DRAWINGS

[0024] Figure 1 It is a front view of the structure of the utility model;

[0025] Figure 2 is a schematic view of the inside of the aluminum framework of the utility model structure;

[0026] Figure 3 is a schematic view of the front of the fixed rod of the utility model structure;

[0027] Figure 4 is a schematic view of the front of the clamping rod of the utility model structure.

[0028] In the drawing: 1, first aluminum framework; 2, polyurethane flame-retardant foam board; 3, aluminum skin; 4, second aluminum framework; 5, fixed groove; 6, fixed rod; 7, cross rod; 8, sliding groove; 9, sliding block; 10, recess; 11, vertical rod; 12, moving groove; 13, moving block; 14, clamping rod; 15, clamping groove; 16, first magnet; 17, second magnet; 18, sliding hole; 19, sliding rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Please refer to Figures 1-4 The utility model provides a technical scheme: a house car light weight car body structure, including first aluminum framework 1, polyurethane flame-retardant foam board 2, aluminum skin 3 and second aluminum framework 4, the top of first aluminum framework 1 is set with fixed groove 5, the fixed groove 5 is slidably installed with fixed rod 6, and one end of fixed rod 6 extends into fixed groove 5, and the other end of fixed rod 6 extends outside fixed groove 5, and the side of fixed rod 6 is fixedly installed with cross rod 7, and the bottom side of cross rod 7 is set with sliding groove 8, and sliding groove 8 is slidably installed with sliding block 9, and one end of sliding block 9 extends into sliding groove 8, and the other end of sliding block 9 extends outside sliding groove 8, and the top of second aluminum framework 4 is set with recess 10, and recess 10 is slidably installed with vertical rod 11, and one end of vertical rod 11 extends into recess 10, and the other end of vertical rod 10 extends outside recess 10, and the end of sliding block 9 extending outside sliding groove 8 is fixedly connected with the top of vertical rod 11.

[0031] Combined Figures 1-2As shown, the recess 10 is provided with a moving slot 12 on one side of the inner wall, the moving block 13 is slidably installed in the moving slot 12, one end of the moving block 13 extends into the moving slot 12, the other end of the moving block 13 extends out of the moving slot 12, the end of the moving block 13 extending out of the moving slot 12 is fixedly connected with one side of the vertical rod 11, the clamping slot 15 is provided on one side of the inner wall of the moving slot 12, and the one end of the moving block 13 is sleeved with the clamping rod 14.

[0032] In combination Figures 1-3 As shown, the one end of the clamping rod 14 is fixedly installed with the first magnet 16, the one side of the inner wall of the clamping slot 15 is fixedly installed with the second magnet 17, the sliding hole 18 is provided on the top inner wall of the moving slot 12, the sliding rod 19 is slidably installed in the sliding hole 18, one end of the sliding rod 19 extends into the moving slot 12, the other end of the sliding rod 19 extends out of the moving slot 12, and the end of the sliding rod 19 extending into the moving slot 12 is fixedly connected with the top of the clamping rod 14.

[0033] In combination Figures 1-3 As shown, the fixed rod 6 is in L-shaped structure, the fixed rod 6 is matched with the fixed slot 5, the moving block 13 is located on the inner wall of one side of the recess 10 away from the fixed rod 6, the one side of the inner wall of the clamping rod 14 is fixedly installed with one end of the first spring, the other end of the first spring is fixedly connected with one side of the moving block 13, the one end of the clamping rod 14 away from the moving block 13 is located with the first magnet 16, and the first magnet 16 is close to the second magnet 17, and the sliding rod 19 is located on the top of the clamping rod 14.

[0034] The working principle of the utility model is as follows: when it is necessary to fix, first, the horizontal moving cross rod 7 drives the fixed rod 6 to horizontally move, then the horizontal moving sliding rod 19 drives the clamping rod 14 to horizontally move, the clamping rod 14 drives the first magnet 16 to horizontally move, the clamping rod 14 is separated from the clamping slot 15, then the upward moving cross rod 7 drives the fixed rod 6 to upwardly move, then the aluminum framework 1 is close to each other, then the downward moving cross rod 7 drives the fixed rod 6 to downwardly move, the fixed rod 6 is clamped into the fixed slot 5, meanwhile, the cross rod 7 drives the sliding block 9 and the vertical rod 11 to downwardly move, the vertical rod 11 drives the moving block 13 to downwardly move, the moving block 13 drives the clamping rod 14 and the first magnet 16 to downwardly move, when the first magnet 16 and the second magnet 17 are close to each other, the clamping rod 14 is clamped into the clamping slot 15 due to the mutual attraction of the first magnet 16 and the second magnet 17, thereby the purpose of fixing the aluminum framework is achieved.

[0035] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A motor home lightweight body structure, comprising a first aluminum framework (1), a polyurethane flame-retardant foam board (2), an aluminum skin (3) and a second aluminum framework (4), characterized in that: a fixing slot (5) is formed in the top of the first aluminum framework (1), a fixing rod (6) is slidably installed in the fixing slot (5), one end of the fixing rod (6) extends into the fixing slot (5), the other end of the fixing rod (6) extends out of the fixing slot (5), a cross rod (7) is fixedly installed on one side of the fixing rod (6), a sliding slot (8) is formed in the bottom of the cross rod (7), a sliding block (9) is slidably installed in the sliding slot (8), one end of the sliding block (9) extends into the sliding slot (8), the other end of the sliding block (9) extends out of the sliding slot (8), a recess (10) is formed in the top of the second aluminum framework (4), a vertical rod (11) is slidably installed in the recess (10), one end of the vertical rod (11) extends into the recess (10), the other end of the vertical rod (11) extends out of the recess (10), and the end of the sliding block (9) extending out of the sliding slot (8) is fixedly connected with the top of the vertical rod (11); a moving slot (12) is formed in the inner wall of one side of the recess (10), a moving block (13) is slidably installed in the moving slot (12), one end of the moving block (13) extends into the moving slot (12), the other end of the moving block (13) extends out of the moving slot (12), and the end of the moving block (13) extending out of the moving slot (12) is fixedly connected with one side of the vertical rod (11); a clamping rod (14) is sleeved on one end of the moving block (13); a first magnet (16) is fixedly installed on one end of the clamping rod (14), and a second magnet (17) is fixedly installed on the inner wall of one side of the clamping slot (15); a sliding hole (18) is formed in the top inner wall of the moving slot (12), a sliding rod (19) is slidably installed in the sliding hole (18), one end of the sliding rod (19) extends into the moving slot (12), the other end of the sliding rod (19) extends out of the moving slot (12), and the end of the sliding rod (19) extending into the moving slot (12) is fixedly connected with the top of the clamping rod (14).

2. The recreational vehicle lightweight vehicle body structure according to claim 1, wherein: The fixing rod (6) is in L-shaped structure, and the fixing rod (6) is matched with the fixing slot (5).

3. The recreational vehicle lightweight vehicle body structure according to claim 1, wherein: The moving block (13) is located on the inner wall of one side of the recess (10) away from the fixing rod (6).

4. The recreational vehicle lightweight vehicle body structure according to claim 1, wherein: One end of a first spring is fixedly installed on the inner wall of one side of the clamping rod (14), and the other end of the first spring is fixedly connected with one side of the moving block (13).

5. The recreational vehicle lightweight vehicle body structure according to claim 1, wherein: The first magnet (16) is located on the end of the clamping rod (14) away from the moving block (13), and the first magnet (16) is close to the second magnet (17).

6. The recreational vehicle lightweight vehicle body structure according to claim 1, wherein: The sliding rod (19) is located on the top of the clamping rod (14).