Connecting structure for chassis and traction frame of motor home

Abstract

The utility model relates to the technical field of motor homes, in particular to a motor home chassis and traction frame connecting structure which comprises a chassis, a traction frame and a traction frame, the side end of the chassis is provided with a first connecting hole, and the bottom of the chassis is provided with a second connecting hole; the traction frame is arranged below the bottom frame; the first connecting piece is formed by bending a plate for four times, is attached to the bottom frame and the traction frame in a wrapping mode and is provided with a first connecting arm, a second connecting arm, a third connecting arm and a fourth connecting arm, the first connecting arm is provided with a third connecting hole corresponding to the first connecting hole, and the fourth connecting arm is provided with a fourth connecting hole corresponding to the second connecting hole; a fourth connecting hole corresponding to the second connecting hole is formed in the second connecting arm; the second connecting piece is formed by bending a plate twice and is provided with a base plate, a first vertical plate and a second vertical plate, fifth connecting holes corresponding to the second connecting holes are formed in the base plate, and the first vertical plate is installed at the tail end of the traction frame; and the spring washer is matched with the fastening bolt.

Description

Technical Field

[0001] The present application relates to the technical field of recreational vehicles, and in particular to a connection structure between an underframe and a traction frame of a recreational vehicle. Background Art

[0002] With the development of tourism, more and more people choose RVs as their travel tools. During the driving process, the stability of the connection between the RV's chassis and the tow frame directly affects the safety and comfort of the RV. The existing connection structure has insufficient connection strength and is prone to loosening after long-term use.

[0003] In response to this problem, the present application proposes a connection structure between the underframe and the traction frame of 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 connection structure between the chassis and the traction frame of a recreational vehicle to solve the problems mentioned in the background technology and overcome the shortcomings of the existing technology.

[0006] In order to achieve the above-mentioned objectives, an embodiment of one aspect of the present application provides a connection structure between a chassis and a traction frame of a recreational vehicle, including: a chassis, a first connection hole is opened at a side end of the chassis, and a second connection hole is opened at the bottom of the chassis; a traction frame is arranged below the chassis; a first connecting member is bent four times from a plate and is semi-wrapped and attached to the chassis and the traction frame, and is provided as a first connecting arm, a second connecting arm, a third connecting arm and a fourth connecting arm, wherein a third connection hole corresponding to the first connection hole is opened on the first connecting arm, and a fourth connection hole corresponding to the second connection hole is opened on the second connecting arm; a second connecting member is bent twice from a plate and is provided as a base plate, a first vertical plate and a second vertical plate, wherein a fifth connection hole corresponding to the second connection hole is opened on the base plate, and the first vertical plate is installed at the tail end of the traction frame; a fastening bolt and a spring washer matched therewith, which fasten the chassis, the traction frame, the first connecting member and the second connecting member together through the first connection hole, the second connection hole, the third connection hole, the fourth connection hole and the fifth connection hole.

[0007] Preferably, any of the above solutions is that one end of the second connecting arm is perpendicular to the first connecting arm, and the other end is perpendicular to one end of the third connecting arm; and the fourth connecting arm is perpendicular to the other end of the third connecting arm.

[0008] Preferably, any of the above schemes is that the first connecting arm is attached to the side end of the base frame, and the second connecting arm is attached to the bottom of the base frame; the third connecting arm is installed at the side end of the traction frame, and the fourth connecting arm is installed at the bottom of the traction frame.

[0009] Preferably, any of the above solutions further includes a reinforcing plate, which is provided with three connecting surfaces, namely a first connecting surface, a second connecting surface and a third connecting surface.

[0010] Preferably, according to any of the above solutions, the first connecting surface is mounted on the first connecting arm, the second connecting surface is mounted on the second connecting arm, and the third connecting surface is mounted on the third connecting arm.

[0011] Preferably, any of the above solutions is that both the first vertical plate and the second vertical plate are perpendicular to the base plate, and the first vertical plate and the second vertical plate are perpendicular to each other.

[0012] Preferably, according to any of the above solutions, a sixth connecting hole is further provided on the base frame.

[0013] Preferably, any of the above schemes is provided with a fixed channel steel installed on the traction frame, the fixed channel steel is provided with a seventh connecting hole corresponding to the sixth connecting hole, and the seventh connecting hole and the sixth connecting hole cooperate with fastening bolts to fasten the fixed channel steel to the base frame.

[0014] Compared with the prior art, the advantages and beneficial effects of this application are:

[0015] The design of multi-point connection and reinforcement plate improves the connection strength between the chassis and the traction frame, improves reliability, and the design of reinforcement plate and fixed channel steel increases the stability of the overall structure.

[0016] 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

[0017] 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:

[0018] Figure 1 This is a schematic diagram from a first perspective according to an embodiment of the present application;

[0019] Figure 2 A schematic diagram of a second viewing angle according to an embodiment of the present application;

[0020] Figure 3 According to the embodiment of this application Figure 2 A in the middle is an enlarged schematic diagram;

[0021] Figure 4 According to the embodiment of this application Figure 2 The enlarged schematic diagram of point B in the middle;

[0022] Figure 5 It is a partial schematic diagram according to an embodiment of the present application;

[0023] Figure 6 According to the embodiment of this application Figure 5 The enlarged schematic diagram of point C in the middle;

[0024] Figure 7 This is a schematic diagram of a first connecting member according to an embodiment of the present application;

[0025] Figure 8 This is a schematic diagram of a reinforcement plate according to an embodiment of the present application;

[0026] Figure 9 Schematic diagram of a second connecting member according to an embodiment of the present application;

[0027] Figure 10 Schematic diagram of tightening bolts according to an embodiment of the present application.

[0028] In the figure: 1. Base frame, 11. First connecting hole, 12. Second connecting hole, 13. Third connecting hole, 2. Traction frame, 3. First connecting piece, 31. First connecting arm, 31a, Third connecting hole, 32. Second connecting arm, 32a, Fourth connecting hole, 33. Third connecting arm, 34. Fourth connecting arm, 4. Second connecting piece, 41. Base plate, 41a, Fifth connecting hole, 42. First vertical plate, 43. Second vertical plate, 5. Fastening bolts, 6. Reinforcing plate, 61. First connecting surface, 62. Second connecting surface, 63. Third connecting surface, 7. Fixed channel steel. DETAILED DESCRIPTION

[0029] like Figures 1 to 10 As shown, the connection structure between the chassis and the traction frame of the RV includes a chassis 1, a traction frame 2, a first connecting member 3, a second connecting member 4, fastening bolts 5 and a reinforcement plate 6.

[0030] Furthermore, a first connection hole 11 is provided at a side end of the base frame 1 , a second connection hole 12 is provided at the bottom of the base frame 1 , and a sixth connection hole 13 is provided on the base frame 1 .

[0031] Furthermore, the traction frame 2 is provided below the base frame 1;

[0032] A fixed channel steel 7 is installed on the traction frame 2. The fixed channel steel 7 is provided with a seventh connection hole corresponding to the sixth connection hole 13. The seventh connection hole and the sixth connection hole 13 cooperate with the fastening bolts 5 to fasten the fixed channel steel 7 to the base frame 1.

[0033] Further, such as Figure 7As shown, the first connecting member 3 is formed by bending a plate four times and is attached to the base frame 1 and the traction frame 2 in a semi-wrapped shape, and is provided with a first connecting arm 31, a second connecting arm 32, a third connecting arm 33 and a fourth connecting arm 34. The first connecting arm 31 is provided with a third connecting hole 31a corresponding to the first connecting hole 11, and the second connecting arm 32 is provided with a fourth connecting hole 32a corresponding to the second connecting hole 12.

[0034] One end of the second connecting arm 32 is perpendicular to the first connecting arm 31, and the other end is perpendicular to one end of the third connecting arm 33;

[0035] The fourth connecting arm 34 and the other end of the third connecting arm 33 are perpendicular to each other;

[0036] The first connecting arm 31 is attached to the side end of the base frame 1, and the second connecting arm 32 is attached to the bottom of the base frame 1;

[0037] The third connecting arm 33 is installed at the side end of the traction frame 2 , and the fourth connecting arm 34 is installed at the bottom of the traction frame 2 .

[0038] Further, such as Figure 8 As shown, the reinforcing plate 6 has three connecting surfaces, namely a first connecting surface 61, a second connecting surface 62 and a third connecting surface 63;

[0039] The first connecting surface 61 is mounted on the first connecting arm 31 , the second connecting surface 62 is mounted on the second connecting arm 32 , and the third connecting surface 63 is mounted on the third connecting arm 33 .

[0040] Specifically, the first connecting surface 61 is fixed to the first connecting arm 31 by welding, and the second connecting surface 62 and the second connecting arm 32, and the third connecting surface 63 and the third connecting arm 33 are also fixed by welding.

[0041] Further, such as Figure 9 As shown, the second connecting member 4 is formed by bending a single plate twice to form a base plate 41, a first vertical plate 42, and a second vertical plate 43. The base plate 41 is provided with a fifth connecting hole 41a corresponding to the second connecting hole 12. The first vertical plate 42 is mounted on the rear end of the traction frame 2. The first vertical plate 42 and the rear end of the traction frame 2 are fixedly mounted by welding.

[0042] The first vertical plate 42 and the second vertical plate 43 are both perpendicular to the base plate 41 , and the first vertical plate 42 and the second vertical plate 43 are perpendicular to each other.

[0043] Specifically, the second connecting member 4 is bent to form a mutually supporting frame, thereby increasing the connection strength between the rear end of the traction frame 2 and the base frame 1 .

[0044] Further, such as Figure 10 As shown, a spring washer is sleeved on the fastening bolt 5, and the fastening bolt 5 fastens the base frame 1, the traction frame 2, the first connecting member 3 and the second connecting member 4 together through the first connecting hole 11, the second connecting hole 12, the third connecting hole 31a, the fourth connecting hole 32a and the fifth connecting hole 41a.

[0045] The connection structure between the underframe and the traction frame of the RV works as follows:

[0046] The multi-point connection of the first connecting member 3 and the second connecting member 4 ensures the connection strength and stability between the base frame 1 and the traction frame 2. The reinforcing plate 6 further enhances the rigidity of the connecting member and the stability of the overall structure. The combined use of the tightening bolts and spring washers provides a reliable fastening force to prevent loosening. The design of the fixed channel steel 7 increases the connection strength between the traction frame 2 and the base frame 1, and improves the stability and safety of the overall structure.

Claims

1. The connection structure between the underframe and the traction frame of the RV is characterized by: include: A base frame, wherein a first connection hole is formed at a side end of the base frame and a second connection hole is formed at a bottom of the base frame; A traction frame, arranged below the base frame; The first connecting member is formed by bending a plate four times and fitting to the base frame and the traction frame in a semi-wrapped shape, and is provided with a first connecting arm, a second connecting arm, a third connecting arm, and a fourth connecting arm, wherein the first connecting arm is provided with a third connecting hole corresponding to the first connecting hole, and the second connecting arm is provided with a fourth connecting hole corresponding to the second connecting hole; The second connecting member is formed by bending a plate twice to form a base plate, a first vertical plate, and a second vertical plate, wherein the base plate is provided with a fifth connecting hole corresponding to the second connecting hole, and the first vertical plate is mounted on the rear end of the traction frame; The fastening bolts and the spring washers matched therewith fasten the base frame, the traction frame, the first connecting member and the second connecting member together through the first connecting hole, the second connecting hole, the third connecting hole, the fourth connecting hole and the fifth connecting hole.

2. The connection structure between the underframe and the traction frame of the recreational vehicle according to claim 1, characterized in that: One end of the second connecting arm is perpendicular to the first connecting arm, and the other end is perpendicular to one end of the third connecting arm; The fourth connecting arm and the other end of the third connecting arm are perpendicular to each other.

3. The connection structure between the underframe and the traction frame of the recreational vehicle according to claim 2, characterized in that: The first connecting arm is attached to the side end of the base frame, and the second connecting arm is attached to the bottom of the base frame; The third connecting arm is installed on the side end of the traction frame, and the fourth connecting arm is installed on the bottom of the traction frame.

4. The connection structure between the underframe and the traction frame of the recreational vehicle according to claim 1, characterized in that: It also includes a reinforcing plate, which is provided with three connecting surfaces, namely a first connecting surface, a second connecting surface and a third connecting surface.

5. The connection structure between the underframe and the traction frame of the recreational vehicle according to claim 4, characterized in that: The first connecting surface is mounted on the first connecting arm, the second connecting surface is mounted on the second connecting arm, and the third connecting surface is mounted on the third connecting arm.

6. The connection structure between the underframe and the traction frame of a recreational vehicle according to claim 1, characterized in that: The first vertical plate and the second vertical plate are both perpendicular to the base plate, and the first vertical plate and the second vertical plate are perpendicular to each other.

7. The connection structure between the underframe and the traction frame of a recreational vehicle according to claim 1, characterized in that: The base frame is further provided with a sixth connecting hole.

8. The connection structure between the underframe and the traction frame of a recreational vehicle according to claim 7, characterized in that: A fixed channel steel is installed on the traction frame. A seventh connecting hole corresponding to the sixth connecting hole is opened on the fixed channel steel. The seventh connecting hole and the sixth connecting hole cooperate with fastening bolts to fasten the fixed channel steel and the base frame.

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