Pull type motor home frame

Abstract

The utility model discloses a travel trailer frame which comprises a main frame and an auxiliary frame. The main frame comprises two main cross beams, each main cross beam is provided with a bend, each main cross beam is divided into a main body part and a bent part, the two main cross beams are arranged at intervals, the two main body parts are parallel, the two bent parts are gradually close to each other, and the ends of the two main cross beams are connected through a traction plate; a first main longitudinal beam, a first suspension mounting longitudinal beam, a damper mounting longitudinal beam, a second suspension mounting longitudinal beam and a second main longitudinal beam are sequentially connected between the two main body parts, and a third main longitudinal beam is connected between the two bent parts; the auxiliary frame comprises an auxiliary frame main body and at least two hangers, the auxiliary frame main body comprises three auxiliary cross beams arranged in parallel and a plurality of auxiliary longitudinal beams connected with the three auxiliary cross beams, and the hangers are mounted at the top of the auxiliary frame main body at intervals; the auxiliary frame is arranged on the top of the main frame. And the main frame and the auxiliary frame are detachably assembled, so that use is convenient, expansibility is high, and the multifunctional recreational vehicle frame can adapt to different types of recreational vehicle carriages.

Description

Technical Field

[0001] The utility model relates to the technical field of trailer frames for recreational vehicles, and more specifically, to a trailer frame for a recreational vehicle. Background Art

[0002] A trailer recreational vehicle is a recreational vehicle with a large space, flexibility, and the ability to be towed. A trailer recreational vehicle consists of a carriage and a frame that bears the carriage. Currently, the frame is generally an integral steel structure, which has a relatively large weight and does not meet the lightweight design requirements. In addition, the integral structure has complex manufacturing processes, poor expandability during later use, and poor adaptability to the carriage.

[0003] In view of this, it is necessary to improve the existing technology. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a trailer frame for a recreational vehicle, aiming to solve at least one of the technical problems existing in the above-mentioned existing technology. To achieve the above purpose, the following technical solutions are adopted:

[0005] A trailer frame for a recreational vehicle includes a main frame and a sub-frame;

[0006] The main frame includes two main cross-beams. Each main cross-beam is provided with a bend, which divides the main cross-beam into a main body part and a bent part. The two main cross-beams are arranged at intervals, and the two main body parts are parallel to each other. The two bent parts gradually approach and are connected by a traction plate at the end. A first main longitudinal beam, a first suspension installation longitudinal beam, a damper installation longitudinal beam, a second suspension installation longitudinal beam, and a second main longitudinal beam are sequentially connected between the two main body parts. A third main longitudinal beam is connected between the two bent parts;

[0007] The sub-frame includes a sub-frame main body and a hanger. The sub-frame main body includes three parallel auxiliary cross-beams and several auxiliary longitudinal beams connecting the three auxiliary cross-beams. The hanger includes at least two and is installed at intervals on the top of the sub-frame main body;

[0008] The sub-frame is arranged on the top of the main frame and is detachably connected by a plurality of bolts.

[0009] Preferably, the main cross-beam is a channel type, and a plurality of weight-reducing holes are provided on the side wall of the main cross-beam.

[0010] Preferably, both ends of each longitudinal beam are connected to the corresponding main cross-beam through a U-shaped connecting sleeve.

[0011] Preferably, the two auxiliary cross-beams located on the outside in the sub-frame main body are made of grooved aluminum and are assembled in cooperation with the two main cross-beams.

[0012] Preferably, both the main frame and the sub-frame are made of aluminum alloy material.

[0013] The beneficial effects of the utility model compared with the existing technology:

[0014] The utility model relates to a trailer-type RV frame, which is integrally made of aluminum alloy. Compared with the original steel chassis, the overall strength is equivalent, but the weight is reduced by 35%-45%. In addition, the main frame and the sub-frame can be detachably assembled, which is convenient to use and has strong expandability, and can be adapted to different models of RV carriages. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural view of the main frame of the present utility model.

[0017] Figure 2 It is a schematic structural view of the sub-frame of the present utility model.

[0018] Figure 3 It is a schematic structural view of the assembly of the main frame and the sub-frame of the present utility model.

[0019] In the figure: 1, main cross beam; 2, weight reduction hole; 3, towing plate; 4, first main longitudinal beam; 5, first suspension installation longitudinal beam; 6, damper installation longitudinal beam; 7, second suspension installation longitudinal beam; 8, second main longitudinal beam; 9, third main longitudinal beam; 10, hanging rack; 11, auxiliary cross beam; 12, auxiliary longitudinal beam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

[0021] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", and "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] As Figures 1 to 3 shown, a preferred embodiment of the present utility model provides a trailer-type RV frame, including a main frame and a sub-frame. Both the main frame and the sub-frame are made of aluminum alloy, meeting the lightweight structural design.

[0023] The main frame includes two main cross-beams 1. Each main cross-beam 1 is in a trough shape, and a number of weight-reducing holes 2 are provided on the side wall of the main cross-beam 1, which can not only not affect the overall strength but also achieve weight reduction. Each main cross-beam 1 is bent respectively, and the main cross-beam is divided into a main body part and a bent part. The bending angle is set according to needs. The two main cross-beams are arranged at intervals, and the two main body parts are parallel to each other. The two bent parts gradually approach but do not touch, and are connected by a traction plate 3 at the end for connecting with a tractor.

[0024] A first main longitudinal beam 4, a first suspension mounting longitudinal beam 5, a damper mounting longitudinal beam 6, a second suspension mounting longitudinal beam 7 and a second main longitudinal beam 8 are sequentially connected between the two main body parts. A third main longitudinal beam 9 is connected between the two bent parts. The three main longitudinal beams cooperate with the two main cross-beams 1 to ensure the overall strength of the frame. The two suspension mounting longitudinal beams are used for mounting independent suspensions, and the damper mounting longitudinal beam 6 is used for mounting dampers to play a role in shock absorption.

[0025] Furthermore, both ends of each of the above-mentioned longitudinal beams are connected to the corresponding main cross-beam through U-shaped connecting sleeves.

[0026] The sub-frame includes a sub-frame main body and hanging brackets 10. The sub-frame main body includes three parallel auxiliary cross-beams 11 and a number of auxiliary longitudinal beams 12 connecting the three auxiliary cross-beams 11, and are specifically fixedly connected by welding or bolts. There are at least two hanging brackets 10, which are installed at intervals on the top of the sub-frame main body and can mount components required for the caravan, such as water tanks, trailer hitches, anti-collision beams, etc.

[0027] Among them, the two auxiliary cross-beams 11 located on the outside in the sub-frame main body are made of channel aluminum, and the two channel aluminums cooperate with the two main cross-beams 1 for assembly, and are specifically connected by bolts.

[0028] In summary, for the trailer caravan frame described in the embodiment of the present utility model, the whole is made of aluminum alloy material. Compared with the original steel chassis, the overall strength is equivalent, but the weight is reduced by 35%-45%. In addition, the main frame and the sub-frame are detachably assembled, which is convenient to use, has strong expandability, and can be adapted to different models of caravan carriages.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A trailer RV frame, characterized in that: Including main frame and subframe; The main frame includes two main cross beams, each of which is provided with a bend, and the main cross beam is divided into a main body and a bend. The two main cross beams are arranged at intervals, and the two main bodies are parallel. The two bends gradually approach each other and are connected at the ends by a traction plate. The first main longitudinal beam, the first suspension mounting longitudinal beam, the damper mounting longitudinal beam, the second suspension mounting longitudinal beam and the second main longitudinal beam are connected in sequence between the two main bodies, and the third main longitudinal beam is connected between the two bends. The sub-frame includes a sub-frame body and a hanging frame, the sub-frame body includes three auxiliary cross beams arranged in parallel and a plurality of auxiliary longitudinal beams connecting the three auxiliary cross beams, and the hanging frame includes at least two hanging frames which are installed at intervals on the top of the sub-frame body; The sub-frame is arranged on the top of the main frame and is detachably connected by a plurality of bolts.

2. A trailer caravan frame according to claim 1, characterized in that: The main cross beam is groove-shaped, and a plurality of weight-reducing holes are arranged on the side wall of the main cross beam.

3. A trailer caravan frame according to claim 1, characterized in that: Both ends of each longitudinal beam are connected to the corresponding main cross beam through a U-shaped connecting sleeve.

4. A trailer caravan frame according to claim 1, characterized in that: The two auxiliary cross beams located on the outside of the subframe body are made of slide aluminum and are assembled with the two main cross beams.

5. The trailer caravan frame according to claim 1, characterized in that: Both the main frame and subframe are made of aluminum alloy.

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