Liftable motor home chassis suspension mechanism

Abstract

The lifting motor home chassis suspension mechanism comprises a motor home chassis, a suspension body, a large-stroke air bag and a limiting balance rod, the suspension body comprises a first round pipe, a second round pipe, a third round pipe, a first round bent pipe and a second round bent pipe, and the first round pipe, the second round pipe and the third round pipe are located between the first round bent pipe and the second round bent pipe. The first round pipe, the second round pipe, the third round pipe, the first round bent pipe and the second round bent pipe are connected in a welded mode, the bottom end of the large-stroke air bag is connected with the first round pipe in a hinged mode, one end of the limiting balance rod is connected with the bottom end of the large-stroke air bag in a hinged mode, and the other end of the limiting balance rod is rotationally connected with the touring car chassis through a rotating shaft. The ends, close to the third round pipe, of the first round bent pipe and the second round bent pipe are rotationally connected with the touring car chassis through rotating shafts. The suspension main body of the lifting motor home chassis suspension mechanism is high in strength and not prone to damage, the chassis can achieve large-stroke lifting, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of chassis suspension of recreational vehicles, in particular to a suspension mechanism for a chassis of a recreational vehicle which can be raised or lowered. Background Art

[0002] With the continuous progress of society and the continuous improvement of living standards, RVs are becoming more and more popular. However, as an emerging type of vehicle, there are still many areas for improvement in the field of RV technology. On the one hand, the road conditions are complex and changeable when the RV is off-road, so the suspension must have sufficient strength to ensure that the RV will not be damaged under complex road conditions; on the other hand, the RV chassis must meet the needs of large-stroke lifting, which can not only facilitate users to get on and off the vehicle to take items in the car, but also meet the passability under various road conditions.

[0003] Therefore, in view of the above-mentioned technical problems, it is necessary to propose a liftable RV chassis suspension mechanism. Utility Model Content

[0004] The purpose of the utility model is to provide a liftable RV chassis suspension mechanism to solve the problems raised in the above background technology that the RV is prone to damage due to complex and changeable road conditions during off-road driving, the suspension strength is not strong enough, and the RV chassis needs to meet the requirements of a large lifting stroke.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liftable RV chassis suspension mechanism, comprising an RV chassis, a suspension body, a long-stroke airbag and a limit balance bar, the suspension body comprising round tube one, round tube two, round tube three, round bend tube one and round bend tube two, the round tube one, round tube two and round tube three are located between the round bend tube one and the round bend tube two, the round tube one, round tube two, round tube three, round bend tube one and round bend tube two are connected by welding, the bottom end of the long-stroke airbag is connected to the round tube one by a hinge, one end of the limit balance bar is connected to the bottom end of the long-stroke airbag by a hinge, and the other end is rotatably connected to the RV chassis by a rotating shaft, and the ends of the round bend tube one and the round bend tube two close to the round tube three are rotatably connected to the RV chassis by a rotating shaft.

[0006] Preferably, the liftable RV chassis suspension mechanism further includes a damping shock absorber, one end of the damping shock absorber is hingedly connected to the round tube 2, and the other end of the damping shock absorber is hingedly connected to the RV chassis.

[0007] Preferably, the limit balance rod is located above the suspension body.

[0008] Preferably, when the long-stroke airbag is inflated and extended, the RV chassis moves downward, and when the long-stroke airbag is deflated and contracted, the RV chassis moves upward.

[0009] Preferably, the lifting height of the RV chassis is 200-600 mm from the ground.

[0010] Preferably, the round tube 1, round tube 2, round tube 3, round bend tube 1 and round bend tube 2 are respectively made of seamless steel tubes.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The suspension body of the utility model includes round tube 1, round tube 2, round tube 3, round bend tube 1 and round bend tube 2, all of which are made of seamless steel tube and formed in one step, and are assembled by welding round tube 1, round tube 2, round tube 3, round bend tube 1 and round bend tube 2. The round tube has high strength, which enhances the strength of the suspension body, avoids the RV being easily damaged due to insufficient suspension strength due to complex and changeable road conditions during off-roading, and further enhances the service life of the RV;

[0013] 2. The ends of the round bend pipes 1 and 2 of the utility model close to the round pipe 3 are rotatably connected to the RV chassis by a rotating shaft. By inflating or deflating the long-stroke airbag, the suspension body is controlled to move along the rotating shaft to make an arc surface, so that the RV chassis moves up and down. The lifting height of the RV chassis is 200-600mm from the ground. When the RV chassis moves downward to the lowest point, it is 200mm from the ground. When the chassis moves upward to the highest point, it is 600mm from the ground. This greatly enhances the long-stroke lifting capacity of the RV chassis, which is convenient for users to get on and off the vehicle to take items in the vehicle, and can also meet the passability under various road conditions.

[0014] 3. One end of the limit balance bar of the utility model is connected to the bottom end of the long-stroke airbag by a hinge, and the other end is rotatably connected to the RV chassis by a rotating shaft. The limit balance bar is located above the suspension body, so that when the RV chassis is raised or lowered with a large stroke, the long-stroke airbag always maintains linear motion when inflating and deflating, and will not bend, thereby ensuring the realization of the large-stroke lifting of the RV chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the suspension body of the utility model.

[0018] In the figure: 1. RV chassis; 2. Suspension body; 3. Long-stroke airbag; 4. Damping shock absorber; 5. Limit balance bar; 21. Round tube one; 22. Round tube two; 23. Round tube three; 24. Round bend tube one; 25. Round bend tube two. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-3 The utility model provides a technical solution: a liftable RV chassis suspension mechanism, comprising an RV chassis 1, a suspension body 2, a long-stroke airbag 3 and a limit balance bar 5, the suspension 2 body comprising a round tube 1 21, a round tube 2 22, a round tube 3 23, a round bend tube 1 24 and a round bend tube 2 25, the round tube 1 21, the round tube 2 22 and the round tube 3 23 are located between the round bend tube 1 24 and the round bend tube 25, the round tube 1 21, the round tube 2 22, the round tube 3 23, the round bend tube 1 24 and the round bend tube 2 25 are connected by welding, the bottom end of the long-stroke airbag 3 is connected to the round tube 1 21 by a hinge, one end of the limit balance bar 5 is connected to the bottom end of the long-stroke airbag 3 by a hinge, and the other end is rotatably connected to the RV chassis 1 by a rotating shaft, and the ends of the round bend tube 1 24 and the round bend tube 2 25 close to the round tube 3 23 are rotatably connected to the RV chassis 1 by a rotating shaft.

[0021] The utility model also includes a damping shock absorber 4, one end of which is hingedly connected to the round tube 22, and the other end of which is hingedly connected to the RV chassis 1, which can play a shock-absorbing role and make the RV more stable during off-road driving.

[0022] Round tube 1 21, round tube 22, round tube 3 23, round bend tube 1 24 and round bend tube 2 25 are all made of seamless steel tubes and assembled in one step. The round tubes are strong and not easily damaged, thereby enhancing the strength of the suspension body 2, avoiding damage to the suspension due to insufficient strength due to complex and changeable road conditions during off-road driving of the RV, and further enhancing the service life of the RV.

[0023] When the liftable RV chassis suspension mechanism is in use, the long-stroke airbag 3 is inflated or deflated, thereby controlling the suspension body 2 to make an arc motion along the rotating shaft, so that the RV chassis 1 moves up and down. The lifting height of the RV chassis 1 is 200-600mm from the ground. When the RV chassis 1 moves downward to the lowest point, the distance from the ground is 200mm. When the RV chassis 1 moves upward to the highest point, the distance from the ground is 600mm. The large-stroke lifting capability of the RV chassis 1 is greatly enhanced, which can facilitate users to get on and off the vehicle to take items in the vehicle, and can also meet the passability under various road conditions.

[0024] The limit balance rod 5 of the liftable RV chassis suspension mechanism is located above the suspension body 2, one end of which is hinged to the bottom end of the long-stroke airbag 3, and the other end is rotatably connected to the RV chassis 1 by a rotating shaft, so that when the RV chassis 1 is lifted or lowered with a large stroke, the long-stroke airbag 3 always maintains linear motion when inflating and deflating, and will not bend, thereby ensuring the realization of the long-stroke lifting of the RV chassis 1.

[0025] Working principle: the suspension body 2 of the liftable RV chassis suspension mechanism comprises a round tube 1 21, a round tube 22, a round tube 3 23, a round bend tube 1 24 and a round bend tube 2 25, all of which are made of seamless steel tubes and are welded and assembled in one step. The round tubes are strong and not easy to be damaged, thereby enhancing the strength of the suspension body 2, avoiding damage caused by insufficient suspension strength due to complex and changeable road conditions during off-road driving, and further enhancing the service life of the RV; the bottom end of the long-stroke airbag 3 is connected to the round tube 1 21 by a hinge, one end of the damping shock absorber 4 is connected to the round tube 22 by a hinge, and the other end is rotatably connected to the RV chassis 1 by a rotating shaft, which can play a shock-absorbing role and make the RV more stable during off-road driving; the round bend tube 1 24 and the round bend tube 25 are rotatably connected to the RV chassis 1 by a rotating shaft at one end close to the round tube 3 23. When in use, By inflating or deflating the long-stroke airbag 3, the suspension body 2 is controlled to make an arc motion along the rotating shaft, so that the RV chassis 1 moves up and down. The lifting height of the RV chassis 1 is 200-600mm from the ground. When the RV chassis 1 moves downward to the lowest point, it is 200mm from the ground. When the RV chassis 1 moves upward to the highest point, it is 600mm from the ground. This greatly enhances the long-stroke lifting ability of the RV chassis 1, which is convenient for users to get on and off the vehicle to take items in the vehicle and can meet the passability under various road conditions. The limit balance bar 5 is located above the suspension body 2, one end of which is connected to the bottom end of the long-stroke airbag 3 by a hinge, and the other end is rotatably connected to the RV chassis 1 by a rotating shaft, so that when the RV chassis 1 is lifted or lowered with a large stroke, the large-stroke airbag 3 always maintains a linear motion when inflating and deflating, and will not bend, thereby ensuring the realization of the long-stroke lifting of the RV chassis 1.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A liftable RV chassis suspension mechanism, characterized in that: The invention comprises a motorhome chassis (1), a suspension body (2), a long-travel airbag (3) and a limit balance bar (5); the suspension body (2) comprises a first round tube (21), a second round tube (22), a third round tube (23), a first round bend tube (24) and a second round bend tube (25); the first round tube (21), the second round tube (22) and the third round tube (23) are located between the first round bend tube (24) and the second round bend tube (25); the first round tube (21), the second round tube (22) and the third round tube (23) are located between the first round bend tube (24) and the second round bend tube (25); , the circular bend tube 1 (24) and the circular bend tube 2 (25) are connected by welding, the bottom end of the large-stroke airbag (3) is connected to the circular tube 1 (21) by a hinge, one end of the limit balance rod (5) is connected to the bottom end of the large-stroke airbag (3) by a hinge, and the other end is rotatably connected to the RV chassis (1) by a rotating shaft, and the ends of the circular bend tube 1 (24) and the circular bend tube 2 (25) close to the circular tube 3 (23) are rotatably connected to the RV chassis (1) by a rotating shaft.

2. The liftable RV chassis suspension mechanism according to claim 1, characterized in that: It also includes a damping shock absorber (4), one end of which is connected to the second round tube (22) by a hinge, and the other end of which is connected to the RV chassis (1) by a hinge.

3. The liftable RV chassis suspension mechanism according to claim 1 is characterized in that: The limit balance rod (5) is located above the suspension body (2).

4. The liftable RV chassis suspension mechanism according to claim 1 is characterized in that: When the long-stroke airbag (3) is inflated and extended, the RV chassis (1) moves downward, and when the long-stroke airbag (3) is deflated and contracted, the RV chassis (1) moves upward.

5. The liftable RV chassis suspension mechanism according to claim 4 is characterized in that: The lifting height of the RV chassis (1) is 200-600 mm from the ground.

6. The liftable RV chassis suspension mechanism according to claim 1, characterized in that: The round tube 1 (21), the round tube 2 (22), the round tube 3 (23), the round bend tube 1 (24) and the round bend tube 2 (25) are respectively made of seamless steel tubes.

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