Touring car trailer chassis based on light-weight aluminum alloy supporting structure

Abstract

The utility model discloses a touring car trailer chassis based on a light-weight aluminum alloy supporting structure, which comprises a front support, the front support is in a bending type design, a clamping installation mechanism is arranged between the front support and a rear support, and the stability and the bending resistance between the front support and the rear support are improved through the clamping installation mechanism. And the front bracket and the rear bracket are connected more stably. According to the touring car trailer chassis based on the light-weight aluminum alloy supporting structure, the front supports can be installed and fixed through the fixing plates and the first transverse supports, the rear supports can be positioned through the spare tire supporting frames, and then the first transverse supports with the supporting shielding frames can be inserted into the inner sides of the front supports; the front support is inserted into the inner side of the rear support, and the front support, the rear support and the supporting shielding frame are mutually fixed, so that the front support and the rear support can be connected more stably, higher bending resistance and portability are achieved, and meanwhile assembly can be conducted quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of recreational vehicles, in particular to a recreational vehicle trailer chassis based on a lightweight aluminum alloy supporting structure. Background Art

[0002] With the improvement of people's living standards and the rapid development of transportation and road traffic, many people have begun to like traveling, and for the convenience of more and more people like to travel in RVs to improve the comfort of travel. Among them, a trailer RV is generally driven by a tractor through a tractor to drive the towing vehicle, and in order to ensure the safety of driving, when the tractor tows the RV, the mass of the RV cannot be greater than the quasi-towing mass of the tractor. Therefore, the heavier the RV, the higher the requirements for the tractor, and a tractor with large displacement and high performance is needed to tow, especially in poor road conditions. If the tractor is stuck in a quagmire, the weight of the trailer RV is too heavy and it cannot get out of trouble. At present, most of the chassis of RVs adopt steel pipe welded structure, and the weight of the chassis of the RV occupies a large part of the RV. In addition, due to the large number of welding and installation parts and cumbersome steps, the production cycle of the RV chassis will be lengthened and the production efficiency will be reduced. Utility Model Content

[0003] The utility model aims to provide a RV trailer chassis based on a lightweight aluminum alloy support structure to solve the problem in the above background technology that the RV chassis adopts steel pipe welding and has a high weight and a long manufacturing time.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a RV trailer chassis based on a lightweight aluminum alloy support structure, including a front bracket, the front bracket is a bending design, and a fixing plate is fixedly installed on the outer surface of one end of the front bracket, a rear bracket is fixedly installed on the end of the front bracket away from the fixing plate, and a spare tire support frame is fixedly installed on the outer surface of one end of the rear bracket, and the end of the rear bracket away from the front bracket is inclined, the front bracket is a strip made of aluminum alloy, and the rear bracket is a strip made of aluminum alloy. A snap-fit ​​mounting mechanism is arranged between the front bracket and the rear bracket, and the snap-fit ​​mounting mechanism improves the stability and bending resistance between the front bracket and the rear bracket, so that the connection between the front bracket and the rear bracket is more stable and the assembly and manufacturing is faster.

[0005] Preferably, the snap-fit ​​mounting mechanism includes: a first transverse bracket, which is fixedly mounted on the inner side of the front bracket, and the inner surface of the front bracket is fitted with the outer surface of the first transverse bracket, and the first transverse bracket is arranged at one end of the front bracket close to the fixed plate, another first transverse bracket is inserted into one end of the front bracket close to the rear bracket, and supporting and shielding frames are fixedly mounted on both ends of the first transverse bracket, and the supporting and shielding frames are fitted with the inner surface of the front bracket, one end of the front bracket close to the spare tire support frame is fitted with the inner surface of the rear bracket, and the rear bracket, the front bracket and the supporting and shielding frame are connected by bolts, and the outer surface of the first transverse bracket is penetrated with weight-reducing penetration holes, and the weight-reducing penetration holes are evenly arranged on the outer surface of the first transverse bracket.

[0006] By adopting the above technical solution, the position of the front bracket can be fixed by the first transverse bracket and the fixing plate, and by interlacing and fixing the supporting shielding frame with the front bracket and the rear bracket, the front bracket and the rear bracket can be connected more tightly, and the connection has better bending resistance.

[0007] Preferably, transverse support extension frames are fixedly mounted on both side outer surfaces of the front bracket, and transverse support extension frames are fixedly mounted on both side outer surfaces of the rear bracket, and through holes are formed on the outer surfaces of the transverse support extension frames.

[0008] By adopting the above technical solution, the area of ​​the lateral mounting support of the chassis is expanded by means of the lateral support extension frame, so that the carriage can be better contacted and fixed with the trailer chassis during installation.

[0009] Preferably, a suspension mounting mechanism is provided between the rear supports, through which the suspension and tires of the chassis can provide a stronger supporting force to the rear supports.

[0010] By adopting the above technical solution, when the tire contacts the ground, the trailer chassis exerts a downward force under the influence of gravity, and the force is shared by the suspension fixing frame. The contact area with the rear bracket is expanded through the support plate, thereby reducing the probability of deformation and damage of the rear bracket due to excessive instantaneous downforce.

[0011] Preferably, the suspension mounting mechanism includes: a suspension fixing frame, support plates are fixedly mounted on both sides of the suspension fixing frame, and the outer surface of the support plate is in contact with the inner surface of the rear bracket, the support plate is an inverted triangle design, and the support plate is connected to the rear bracket, the outer surface of the suspension fixing frame is provided with a weight-reducing penetration hole, the outer surface of the rear bracket is fixedly mounted with a suspension support baffle, and the outer surface of the suspension support baffle is provided with an annular groove, and the suspension support baffle is arranged between the suspension fixing frames, the outer surface of the suspension fixing frame is fixedly mounted with a mounting cross plate, and the outer surface of the mounting cross plate is provided with a through hole.

[0012] By adopting the above technical solution, the suspension of the trailer chassis can be installed by installing the wheel suspension rotating link member in the through hole of the mounting cross plate and installing the damper on the suspension support baffle.

[0013] Preferably, a step guard plate is fixedly mounted on the outer surface of one side of the rear bracket, and the step guard plate is located between the first transverse bracket and the suspension fixing frame, and anti-collision frames are fixedly mounted on the outer surfaces of both sides of the front bracket and the rear bracket.

[0014] By adopting the above technical solution, the step guard plate can protect the upper and lower steps installed subsequently and reduce the probability of damage to the step telescopic mechanism. At the same time, the anti-collision frame can improve the safety of the carriage and reduce the probability of damage to the carriage.

[0015] Preferably, a spare tire mounting rack is fixedly installed on the outer surface of the rear spare tire support frame, and the spare tire mounting rack is U-shaped, and a tire fixing screw is threadedly installed on the outer surface of the spare tire mounting rack, and a fixing screw is threadedly installed on the outer surface of the tire fixing screw, and the outer surface of the fixing screw is in contact with the outer surface of the spare tire mounting rack.

[0016] By adopting the above technical solution, the spare tire of the car is placed in the spare tire mounting rack, the tire fixing screw is screwed into the spare tire mounting rack and passed through the wheel hub of the tire, and then the fixing screw is tightened to fix the tire fixing screw, so that the spare tire can be fixed and cannot fall out.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the RV trailer chassis based on the lightweight aluminum alloy support structure:

[0018] 1. The front brackets can be mounted and fixed to each other through the fixing plate and the first transverse bracket, and the weight-reducing penetration holes on the outer surfaces of the first transverse bracket and the suspension fixing bracket can reduce the weight of the trailer chassis. The strip design of the front bracket and the rear bracket can also reduce the weight of the chassis, and the rear bracket can be positioned through the spare tire support frame. After that, the first transverse bracket with the support shielding frame can be inserted into the inner side of the front bracket, and the front bracket can be inserted into the inner side of the rear bracket, and the front bracket, the rear bracket and the support shielding frame can be fixed to each other, so that the front bracket and the rear bracket can be connected more stably, have stronger bending resistance and lightness, and can be quickly assembled and manufactured;

[0019] 2. The rear brackets can be reinforced and fixed by the suspension fixing frame and the support sheet. The support sheet can expand the support force of the suspension fixing frame, so that the support sheet and the rear bracket have a larger contact area. The rear support sheet shares the force on the rear bracket, so that the rear bracket will not be deformed due to excessive weight. When installing the tire, the rotating connecting rod of the suspension can be installed in the through hole of the installation cross plate, and the damper can be fixedly installed in the suspension support baffle, so that the tire suspension of the trailer chassis can be installed;

[0020] 3. The anti-collision frame can be used to protect the vehicle compartment installed on the trailer chassis, while improving the protection of the front bracket and the rear bracket, and the spare tire can be placed in the spare tire mounting rack. Then the tire fixing screw can be inserted into the spare tire mounting rack and rotated to make the tire fixing screw pass through the wheel hub of the spare tire to fix the spare tire. Then the fixing screw is tightened and the tire fixing screw is fixed to prevent the spare tire from falling out of the spare tire mounting rack. The spare tire can be placed inside the trailer chassis for easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the front bracket and the rear bracket of the utility model;

[0022] Figure 2 It is a schematic diagram of the exploded three-dimensional structure of the front bracket and the first transverse bracket of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the transverse support extension frame and the first transverse support frame of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the suspension support baffle and the spare tire support frame of the utility model;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the spare tire mounting rack and tire fixing screw of the utility model;

[0026] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the front bracket and the rear bracket of the utility model.

[0027] In the figure: 1. front bracket; 2. fixing plate; 3. rear bracket; 4. lateral support extension frame; 5. first lateral bracket; 6. support shielding frame; 7. step guard plate; 8. suspension fixing frame; 9. support plate; 10. weight-reducing penetration hole; 11. installation cross plate; 12. suspension support baffle; 13. spare tire support frame; 14. anti-collision frame; 15. spare tire placement frame; 16. tire fixing screw; 17. fixing screw. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6 The utility model provides a technical solution: a RV trailer chassis based on a lightweight aluminum alloy support structure, including a front bracket 1, the front bracket 1 is a bending design, and a fixing plate 2 is fixedly installed on the outer surface of one end of the front bracket 1, a rear bracket 3 is fixedly installed on the end of the front bracket 1 away from the fixing plate 2, and a spare tire support frame 13 is fixedly installed on the outer surface of one end of the rear bracket 3, and the end of the rear bracket 3 away from the front bracket 1 is an inclined design, the front bracket 1 is a strip made of aluminum alloy, the rear bracket 3 is a strip made of aluminum alloy, and a snap-fit ​​installation mechanism is arranged between the front bracket 1 and the rear bracket 3, and the snap-fit ​​installation mechanism is used to improve the stability and bending resistance between the front bracket 1 and the rear bracket 3, so that the connection between the front bracket 1 and the rear bracket 3 is more stable.

[0030] The inclined design of the rear bracket 3 can improve the supporting force of the rear bracket 3 on the vehicle compartment, and the spare tire support frame 13 can firmly fix the rear bracket 3 and at the same time can fix one end of the front bracket 1 through the fixing plate 2.

[0031] The snap-fit ​​installation mechanism includes: a first transverse bracket 5, which is fixedly installed on the inner side of the front bracket 1, and the inner surface of the front bracket 1 is fitted with the outer surface of the first transverse bracket 5, and the first transverse bracket 5 is arranged at one end of the front bracket 1 close to the fixed plate 2, and another first transverse bracket 5 is inserted at one end of the front bracket 1 close to the rear bracket 3, and supporting and shielding frames 6 are fixedly installed at both ends of the first transverse bracket 5, and the supporting and shielding frames 6 are fitted with the inner surface of the front bracket 1, and one end of the front bracket 1 close to the spare tire support frame 13 is fitted with the inner surface of the rear bracket 3, and the rear bracket 3, the front bracket 1 and the supporting and shielding frame 6 are connected by bolts, and the outer surface of the first transverse bracket 5 is penetrated with weight-reducing penetration holes 10, and the weight-reducing penetration holes 10 are evenly arranged on the outer surface of the first transverse bracket 5.

[0032] The front bracket 1 can be supported and fixed by the first transverse bracket 5, so that the position between the front brackets 1 is fixed, and then the supporting shielding frame 6 can be inserted into the inner side of the front bracket 1, and the front bracket 1 can be inserted into the inner side of the rear bracket 3. The front bracket 1, the rear bracket 3 and the supporting shielding frame 6 are interlaced with each other and fixed with screws. At the same time, the weight can be reduced by the weight-reducing penetration hole 10 set on the outer surface of the first transverse bracket 5, so that the fixed connection between the front bracket 1 and the rear bracket 3 can be more firmly, and the connection between the front bracket 1 and the rear bracket 3 can have better bending resistance.

[0033] Transverse support extension frames 4 are fixedly mounted on both side outer surfaces of the front bracket 1 , and transverse support extension frames 4 are fixedly mounted on both side outer surfaces of the rear bracket 3 , and through holes are formed on the outer surfaces of the transverse support extension frames 4 .

[0034] The installation and fixing area of ​​the carriage can be extended and expanded by the transverse supporting extension frame 4, so that the transverse supporting extension frame 4 and the carriage can be better fixed.

[0035] A suspension mounting mechanism is arranged between the rear brackets 3, through which the suspension and tire of the chassis can have a stronger supporting force on the rear bracket 3. The suspension mounting mechanism includes: a suspension fixing frame 8, support plates 9 are fixedly installed on both sides of the suspension fixing frame 8, and the outer surface of the support plate 9 is in contact with the inner surface of the rear bracket 3, the support plate 9 is an inverted triangle design, and the support plate 9 is connected to the rear bracket 3, a weight-reducing penetration hole 10 is provided on the outer surface of the suspension fixing frame 8, a suspension support baffle 12 is fixedly installed on the outer surface of the rear bracket 3, and an annular groove is provided on the outer surface of the suspension support baffle 12, and the suspension support baffle 12 is arranged between the suspension fixing frames 8, a mounting cross plate 11 is fixedly installed on the outer surface of the suspension fixing frame 8, and a through hole is provided on the outer surface of the mounting cross plate 11.

[0036] The weight of the car body and chassis will be pressed on the suspension bracket 8, and the contact area between the suspension bracket 8 and the rear bracket 3 will be expanded through the support plate 9, so as to share the weight received by the rear bracket 3 when it is bumpy and reduce the probability of deformation of the rear bracket 3. The rotating support connecting rod of the tire suspension is installed through the through hole of the mounting cross plate 11, and then the damper is installed on the suspension support baffle 12, and then the trailer chassis tire of the trailer can be installed.

[0037] A step guard plate 7 is fixedly installed on the outer surface of one side of the rear bracket 3, and the step guard plate 7 is located between the first transverse bracket 5 and the suspension fixing frame 8. Anti-collision frames 14 are fixedly installed on the outer surfaces of both sides of the front bracket 1 and the rear bracket 3.

[0038] The step guard plate 7 can protect the upper and lower steps of the RV and reduce the chance of damage to the steps. At the same time, the anti-collision frame 14 on both sides of the front bracket 1 and the rear bracket 3 can enhance the protection of the installed carriage and reduce the chance of damage to the carriage.

[0039] A spare tire mounting rack 15 is fixedly installed on the outer surface of the rear spare tire support frame 13, and the spare tire mounting rack 15 is U-shaped, and a tire fixing screw 16 is threadedly installed on the outer surface of the spare tire mounting rack 15, and a fixing screw 17 is threadedly installed on the outer surface of the tire fixing screw 16, and the outer surface of the fixing screw 17 is in contact with the outer surface of the spare tire mounting rack 15.

[0040] The spare tire can be placed inside the spare tire mounting rack 15, and the tire fixing screw 16 is inserted into the spare tire mounting rack 15 and passed through the spare tire and then tightened, and then the fixing screw 17 is tightened to fix the tire fixing screw 16 and prevent it from rotating, so that the spare tire cannot fall out.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A caravan trailer chassis based on a lightweight aluminum alloy support structure, comprising a front bracket (1), the front bracket (1) is of a bent design, and a fixing plate (2) is fixedly installed on the outer surface of one end of the front bracket (1), a rear bracket (3) is fixedly installed on the end of the front bracket (1) away from the fixing plate (2), and a spare tire support frame (13) is fixedly installed on the outer surface of one end of the rear bracket (3), and the end of the rear bracket (3) away from the front bracket (1) is of an inclined design, the front bracket (1) is a strip made of aluminum alloy, and the rear bracket (3) is a strip made of aluminum alloy, characterized in that: A snap-fit ​​installation mechanism is provided between the front bracket (1) and the rear bracket (3), and the snap-fit ​​installation mechanism is used to improve the stability and bending resistance between the front bracket (1) and the rear bracket (3), so that the connection between the front bracket (1) and the rear bracket (3) is more stable.

2. The RV trailer chassis based on a lightweight aluminum alloy support structure according to claim 1, characterized in that: The snap-fit ​​installation mechanism comprises: a first transverse bracket (5), the first transverse bracket (5) is fixedly installed on the inner side of the front bracket (1), and the inner surface of the front bracket (1) is in contact with the outer surface of the first transverse bracket (5), and the first transverse bracket (5) is arranged at one end of the front bracket (1) close to the fixing plate (2), another first transverse bracket (5) is inserted at one end of the front bracket (1) close to the rear bracket (3), and supporting shielding frames (6) are fixedly installed at both ends of the first transverse bracket (5), and the supporting shielding frames (6) are in contact with the inner surface of the front bracket (1), one end of the front bracket (1) close to the spare tire supporting frame (13) is in contact with the inner surface of the rear bracket (3), and the rear bracket (3), the front bracket (1) and the supporting shielding frame (6) are connected by bolts, and the outer surface of the first transverse bracket (5) is penetrated by a weight-reducing penetration hole (10), and the weight-reducing penetration holes (10) are evenly arranged on the outer surface of the first transverse bracket (5).

3. The RV trailer chassis based on a lightweight aluminum alloy support structure according to claim 1, characterized in that: Transverse support extension frames (4) are fixedly mounted on the outer surfaces of both sides of the front bracket (1), and transverse support extension frames (4) are fixedly mounted on the outer surfaces of both sides of the rear bracket (3), and through holes are provided on the outer surfaces of the transverse support extension frames (4).

4. The RV trailer chassis based on a lightweight aluminum alloy support structure according to claim 1, characterized in that: A suspension installation mechanism is provided between the rear brackets (3), and the suspension installation mechanism enables the suspension of the chassis and the tires to have a stronger supporting force on the rear brackets (3).

5. The RV trailer chassis based on a lightweight aluminum alloy support structure according to claim 4 is characterized by: The suspension mounting mechanism comprises: a suspension fixing frame (8), support plates (9) are fixedly mounted on both sides of the suspension fixing frame (8), and the outer surface of the support plate (9) is in contact with the inner surface of the rear bracket (3), the support plate (9) is designed as an inverted triangle, and the support plate (9) is connected to the rear bracket (3), the outer surface of the suspension fixing frame (8) is provided with a weight-reducing penetration hole (10), the outer surface of the rear bracket (3) is fixedly mounted with a suspension support baffle (12), and the outer surface of the suspension support baffle (12) is provided with an annular groove, and the suspension support baffle (12) is arranged between the suspension fixing frames (8), and the outer surface of the suspension fixing frame (8) is fixedly mounted with a mounting cross plate (11), and the outer surface of the mounting cross plate (11) is provided with a through hole.

6. The RV trailer chassis based on a lightweight aluminum alloy support structure according to claim 1, characterized in that: A step guard plate (7) is fixedly mounted on one side outer surface of the rear bracket (3), and the step guard plate (7) is located between the first transverse bracket (5) and the suspension fixing frame (8), and anti-collision frames (14) are fixedly mounted on both side outer surfaces of the front bracket (1) and the rear bracket (3).

7. The RV trailer chassis based on a lightweight aluminum alloy support structure according to claim 1, characterized in that: A spare tire mounting frame (15) is fixedly mounted on the outer surface of the rear spare tire support frame (13), and the spare tire mounting frame (15) is of U-shaped design, and a tire fixing screw (16) is threadedly mounted on the outer surface of the spare tire mounting frame (15), and a fixing screw (17) is threadedly mounted on the outer surface of the tire fixing screw (16), and the outer surface of the fixing screw (17) is in contact with the outer surface of the spare tire mounting frame (15).

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