Pull type touring car chassis assembly with A-shaped metal plate beam

Abstract

The utility model discloses a sheet metal A-shaped beam pull type touring car chassis assembly, which relates to the technical field of chassis assemblies, and comprises a high-strength A-shaped beam sub-assembly, a metal plate A-shaped beam sub-assembly, a metal plate A-shaped beam sub-assembly and a metal plate B-shaped beam sub-assembly, the inertia pull rod sub-assembly is assembled on the high-strength A-shaped beam sub-assembly and is connected with the tractor; the independent suspension sub-assembly is connected to the tail ends of the high-strength A-type beam sub-assembly and the inertia pull rod sub-assembly, and is further fixedly connected with a motor home body floor; the hub tires are connected to the two sides of the independent suspension subassembly; and the guide wheel sub-assembly is connected with the head end of the inertia pull rod sub-assembly. First manual adjusting supporting legs are symmetrically arranged on the two sides of the high-strength A-shaped beam sub-assembly, second manual adjusting supporting legs are symmetrically arranged at the tail of the independent suspension sub-assembly, and the first manual adjusting supporting legs and the second manual adjusting supporting legs are fixedly connected with a motor home body floor. The overall weight of the chassis is greatly reduced, safety and comfort are improved, and the chassis has cross-country performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chassis assembly, specifically relates to a sheet metal A type bamboo towed trailer car chassis assembly. BACKGROUND

[0002] In recent years, with the significant improvement of people's living standards, as a kind of relying on the power of tractor, bring great convenience for travel and leisure life of the vehicle, experienced the vigorous development and extensive popular. However, this kind of car has been facing some problems that cannot be ignored for a long time: the chassis design is often biased, the power requirement of tractor is also higher in long-distance travel, and fatigue driving and other problems are easy to cause.

[0003] The above-mentioned situation not only increases the safety hazard in the driving process, but also affects the overall comfort and controllability, especially when facing complex and changeable off-road conditions, the limitation of traditional towed trailer car is particularly obvious, lacking necessary off-road performance, it is difficult to meet the comprehensive consideration of consumers for safety, comfort and exploration demand. SUMMARY

[0004] The utility model discloses a kind of sheet metal A type bamboo towed trailer car chassis assembly, substantially reduce the overall weight of chassis, improve safety and comfort, and have off-road performance.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present application is: a kind of sheet metal A type bamboo towed trailer car chassis assembly, comprising:

[0006] High-strength A type bamboo subassembly, and trailer body floor fastening connection;

[0007] Inertial link rod subassembly, assembled on high-strength A type bamboo subassembly and connected with tractor;

[0008] Independent suspension subassembly, connected in high-strength A type bamboo subassembly, inertial link rod subassembly tail end, and also with trailer body floor fastening connection;

[0009] Hub tire, connected in independent suspension subassembly both sides;

[0010] Guiding wheel subassembly, connected with inertial link rod subassembly head end.

[0011] As a preferred scheme of the utility model, high-strength A type bamboo subassembly both sides are symmetrically provided with first manual adjustment support leg, independent suspension subassembly tail part is symmetrically provided with second manual adjustment support leg, and the first manual adjustment support leg and the second manual adjustment support leg are fastened with trailer body floor.

[0012] As an optimal scheme of the utility model, the first manual adjustment support leg and the second manual adjustment support leg are identical in structure, and each comprises a threaded screw rod mounted on the adjustment support, one end of the threaded screw rod extends out of the adjustment support as an adjustment position, a sliding block is rotatably connected to the threaded screw rod, and the sliding block is connected to the support frame.

[0013] As an optimal scheme of the utility model, the independent suspension subassembly comprises a rectangular frame, a special-shaped frame, a spring and a shaft head, the two sides of the rectangular frame are connected to the inwardly extending special-shaped frame through pivots, the special-shaped frame is connected to a curved plate, the curved plate is provided with a support shaft connected to the rectangular frame, and the support shaft is externally sleeved with the spring.

[0014] As an optimal scheme of the utility model, the inertial pull rod subassembly comprises a tractor, an inertial hydraulic brake, a brake pull rod and a brake pull wire, the tractor is connected to the inertial hydraulic brake, the inertial hydraulic brake is connected to the brake pull wire through the brake pull rod, and the brake pull wire is connected to the shaft head in traction; the brake pull rod slides forward and backward in the through holes of the plurality of supports, and each support is fastened to the floor of the motor home body.

[0015] As an optimal scheme of the utility model, the guide wheel subassembly comprises double-row guide wheels, a height adjustment worm and gear and a manual handle, the double-row guide wheels and the manual handle are connected to the bottom and top of the height adjustment worm and gear respectively, and the height adjustment worm and gear is further connected to the inertial hydraulic brake.

[0016] As an optimal scheme of the utility model, the inertial hydraulic brake is fixed on the high-strength A-shaped beam subassembly through an inertial brake connecting plate.

[0017] As an optimal scheme of the utility model, the high-strength A-shaped beam subassembly comprises a first hot-formed high-strength longitudinal beam and a second hot-formed high-strength longitudinal beam, a hot-formed high-strength cross beam is connected between the first hot-formed high-strength longitudinal beam and the second hot-formed high-strength longitudinal beam, and the three are connected in an A shape.

[0018] As an optimal scheme of the utility model, a plurality of ear pieces are arranged on the first hot-formed high-strength longitudinal beam and the second hot-formed high-strength longitudinal beam, and are used for fastening connection with the floor of the motor home body; the tail ends of the first hot-formed high-strength longitudinal beam and the second hot-formed high-strength longitudinal beam are arranged in parallel, and a single-suspension clamping piece is mounted, and is used for fastening connection with the floor of the motor home body and the independent suspension.

[0019] As one preferred scheme of the utility model, when parking, firstly, the house car is parked under the action of the inertia pull rod subassembly, then the guide wheel subassembly is manually adjusted, the double-row guide wheels are lowered and closely contact with the ground, and the pre-supporting effect is achieved; then the towing vehicle ball head is unhooked from the towing device; finally, the first manually adjusted supporting leg and the second manually adjusted supporting leg are lowered and closely contact with the ground, and the house car body is adjusted through the first manually adjusted supporting leg and the second manually adjusted supporting leg.

[0020] The utility model discloses the above technical scheme can achieve the following technical effects:

[0021] 1, high-strength A-type roof beam subassembly structure is more compact and stable, compared with the traditional rectangular cold stamping horizontal and vertical roof beam structure, the weight is greatly reduced, and the high safety requirement is met.

[0022] 2, equipped with independent suspension and 17-inch large wheel hub, the comfort and off-road performance of the house car during driving are effectively improved.

[0023] 3, equipped with inertia pull rod subassembly, before and after the manually adjusted supporting leg is lowered, the safety of parking is increased by one "insurance", and the parking safety performance can be further improved.

[0024] 4, the manually adjusted supporting leg has independent leveling function, so that the house car can adapt to certain pit, slope and other bad parking road conditions, and the parking comfort is further improved. DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiment of the present application, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 It is a schematic diagram of the sheet metal A-type roof beam trailer type house car chassis assembly structure.

[0027] Figure 2 It is an application diagram of the sheet metal A-type roof beam trailer type house car chassis assembly.

[0028] Figure 3 It is a schematic diagram of the high-strength A-type roof beam subassembly structure.

[0029] Figure 4 It is a schematic diagram of the inertia pull rod subassembly structure.

[0030] Figure 5 It is a schematic diagram of the independent suspension subassembly structure.

[0031] Figure 6A schematic view of a guide wheel subassembly structure;

[0032] Figure 7 A schematic view of a second manually adjusted support leg structure.

[0033] Figure number explanation: 1, high-strength A-type beam subassembly; 1.1, first hot-formed high-strength longitudinal beam; 1.2, second hot-formed high-strength longitudinal beam; 1.3, hot-formed high-strength cross beam; 1.4, ear piece; 1.5, independently suspended clamping piece; 2, inertia pull rod subassembly; 2.1, traction device; 2.2, inertia hydraulic brake; 2.3, inertia brake connecting plate; 2.4, brake pull rod; 2.5, support; 2.6, brake pull wire; 3, independent suspension subassembly; 3.1, rectangular frame; 3.2, special-shaped frame; 3.3, curved plate; 3.4, spring; 3.5, shaft head; 4, wheel hub tire; 5, first manually adjusted support leg; 5.1, manual handlebar; 5.2, height adjustment worm gear; 5.3, double-row guide wheel; 6, second manually adjusted support leg; 6.1, adjustment support; 6.2, sliding block; 6.3, threaded screw rod; 6.4, support frame; 6.5, pull rod; 6.6, adjustment position. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0035] It should be noted that when an element is referred to as being “fixed” or “disposed” on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being “connected” to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] In addition, the terms “first” and “second” are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “a plurality of” is two or more, unless otherwise explicitly and specifically limited. The meaning of “several” is one or more, unless otherwise explicitly and specifically limited.

[0037] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] like Figures 1-2 As shown, this embodiment provides a sheet metal A-beam trailer caravan chassis assembly, including:

[0040] The high-strength A-beam sub-assembly is securely connected to the RV body floor, effectively supporting the RV;

[0041] The inertia tie rod sub-assembly, mounted on the high-strength A-beam sub-assembly and connected to the tractor, adds an extra layer of "insurance" for parking safety and can further improve parking safety performance;

[0042] The independent suspension sub-assembly is connected to the rear end of the high-strength A-beam sub-assembly and the inertia tie rod sub-assembly, and is also firmly connected to the floor of the RV body. It can effectively absorb the vibration caused by uneven road surface and improve the comfort of the ride.

[0043] The wheels and tires are connected to both sides of the independent suspension sub-assembly; the use of 17-inch large wheels effectively improves the comfort and off-road performance of the RV.

[0044] The guide wheel sub-assembly is connected to the front end of the inertia tie rod sub-assembly, serving as a pre-support function;

[0045] The first manually adjustable outriggers are symmetrically arranged on both sides of the high-strength A-type beam sub-assembly and are securely connected to the RV body floor.

[0046] The second manually adjustable outrigger is symmetrically positioned at the rear of an independent suspension sub-assembly and is securely connected to the RV body floor.

[0047] like Figure 3As shown, the high-strength A-shaped beam assembly includes a first hot-formed high-strength longitudinal beam and a second hot-formed high-strength longitudinal beam, and a hot-formed high-strength cross beam connected between the first and second hot-formed high-strength longitudinal beams, which are connected in an A-shaped manner; a plurality of ear pieces are distributed on the first and second hot-formed high-strength longitudinal beams for fastening connection with the recreational vehicle body floor; the tail ends of the first and second hot-formed high-strength longitudinal beams are arranged in parallel and are provided with a separate suspension bracket for fastening connection with the recreational vehicle body floor and the independent suspension. As a key component, the high-strength A-shaped beam assembly is used to provide strong support and stability. Through the hot forming process and structural design, not only the weight is greatly reduced, but also various forces and moments generated during the driving of the recreational vehicle can be withstood.

[0048] As shown in Figure 4 , the inertia pull rod subassembly includes a tractor, an inertia hydraulic brake, a brake pull rod, and a brake pull wire, wherein the tractor is connected with the inertia hydraulic brake, the inertia hydraulic brake is connected with the brake pull wire through the brake pull rod, and the brake pull wire is connected with the axle head. The brake pull rod slides forward and backward in the through hole of the support, and each support is fastened with the recreational vehicle body floor. The inertia pull rod subassembly is connected with the towing vehicle. When the towing vehicle drives, the towing vehicle pulls the recreational vehicle chassis assembly and drives the recreational vehicle body to move. When the towing vehicle brakes, the recreational vehicle impacts the inertia hydraulic brake under the action of inertia, causing the inertia hydraulic brake to compress and push the brake oil inside the inertia hydraulic brake to move to the brake cylinder. The brake cylinder gets power and holds the brake pull rod 2, which pulls the brake pull wire, and finally pulls the brake pad inside the axle head, causing the recreational vehicle hub tire to brake and assisting the recreational vehicle to brake. The brake pull rod slides forward and backward in the through hole of the support, allowing the brake pull rod to have a certain stroke and flexibility during braking, thereby ensuring that the braking force can be uniformly and stably applied to the hub.

[0049] As shown in Figure 5 , the independent suspension subassembly includes a rectangular frame, a special-shaped frame, a spring, and an axle head. The two sides of the rectangular frame are connected with the inwardly extending special-shaped frame through a rotating shaft. The special-shaped frame is connected with a curved plate. A support shaft connected with the rectangular frame is arranged on the curved plate, and the support shaft is externally sleeved with a spring. The end of the curved plate is provided with an axle head connected with the hub tire. The components work together to support and cushion the hub tire. When the recreational vehicle drives on uneven road surface, the spring can absorb and disperse the impact force, thereby maintaining the comfort of the ride. The special-shaped frame, rotating shaft, and curved plate enable the suspension to adapt to the unevenness of the road surface, maintain good contact between the wheels and the ground, and thus ensure the stability and maneuverability of driving.

[0050] As shown in Figure 6As shown, the guide wheel subassembly includes double-row guide wheels, a height-adjusting worm and gear, and a manual crank, the double-row guide wheels and the manual crank being connected to the bottom and top of the height-adjusting worm and gear respectively, and the height-adjusting worm and gear being further connected to the inertial hydraulic brake. When the height of the guide wheel subassembly needs to be adjusted, the operator can drive the height-adjusting worm and gear by rotating the manual crank. The worm and gear mechanism converts the rotary motion into linear motion, thereby achieving accurate adjustment of the height of the double-row guide wheels. After the adjustment is completed, the double-row guide wheels will fall down and be in close contact with the ground, thereby playing a pre-supporting role.

[0051] As shown in the drawings, Figure 7 As shown, the first and second manually-adjustable legs have the same structure and are independently operated, and each includes a threaded screw rod mounted on an adjusting bracket, one end of the threaded screw rod extending out of the adjusting bracket as an adjusting part, and a sliding block rotatably connected to the threaded screw rod, the sliding block being connected to a support frame via a pull rod on both sides of the middle part of the support frame. When the house car needs to be parked on uneven ground, the first and second manually-adjustable legs can be operated to fall down and be in close contact with the ground. The height of the legs can be accurately adjusted by rotating the adjusting part of the threaded screw rod, thereby adjusting the levelness and stability of the house car body. Since the first and second manually-adjustable legs have the same structure and are independently operated, their heights can be adjusted respectively to ensure that the house car body remains level and stable when parked. Although this manual adjustment method is relatively simple, it can provide sufficient supporting force and stability and is suitable for various parking environments and conditions.

[0052] When the house car is parked, the house car is first parked under the action of the inertial pull rod subassembly, then the guide wheel subassembly is manually adjusted so that the double-row guide wheels fall down and are in close contact with the ground, thereby playing a pre-supporting role; then the towing ball of the towing vehicle is unhooked from the tow hitch; finally, the first and second manually-adjustable legs fall down and are in close contact with the ground, and the house car body is adjusted by adjusting the first and second manually-adjustable legs.

[0053] The chassis assembly of the present application is special for trailer-type house cars, and the chassis design focuses on lightweight, high safety and high comfort, and has excellent off-road performance.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some 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 application.

Claims

1. A sheet metal A-beam trailer caravan chassis assembly, characterized in that, include: The high-strength A-type beam sub-assembly is securely connected to the RV body floor. The inertia tie rod sub-assembly is mounted on the high-strength A-type beam sub-assembly and connected to the tractor. The independent suspension sub-assembly is connected to the rear end of the high-strength A-beam sub-assembly and the inertia tie rod sub-assembly, and is also firmly connected to the floor of the RV body. Wheel hubs and tires are connected to both sides of the independent suspension sub-assembly; The guide wheel subassembly is connected to the front end of the inertia tie rod subassembly.

2. The sheet metal A-frame trailerized RV chassis assembly of claim 1, wherein, The high-strength A-type beam sub-assembly is symmetrically provided with first manually adjustable outriggers on both sides, and the independent suspension sub-assembly is symmetrically provided with second manually adjustable outriggers at the rear. Both the first and second manually adjustable outriggers are securely connected to the floor of the RV body.

3. The sheet metal A-frame trailerized RV chassis assembly of claim 2, wherein, The first and second manually adjustable outriggers have the same structure, both including a threaded screw mounted on an adjusting bracket. One end of the threaded screw extends out of the adjusting bracket as an adjusting part. A slider is rotatably connected to the threaded screw, and the slider is connected to the support frame. The two sides of the middle part of the support frame are respectively connected to the adjusting bracket via pull rods.

4. The sheet metal A-frame trailerized RV chassis assembly of claim 1, wherein, The independent suspension sub-assembly includes a rectangular frame, a non-circular frame, a spring, and an axle head. The rectangular frame is connected to the inwardly extending non-circular frame on both sides via pivots. The non-circular frame is connected to a bending plate. A support shaft connected to the rectangular frame is provided on the bending plate, and a spring is sleeved on the outside of the support shaft. An axle head is provided at the end of the bending plate, and the axle head is connected to the wheel hub and tire.

5. The all-aluminum body A-frame pull-behind RV chassis assembly of claim 4, wherein: The inertial tie rod sub-assembly includes a traction device, an inertial hydraulic brake, a brake lever, and a brake cable. The traction device is connected to the inertial hydraulic brake, which is connected to the brake cable via the brake lever. The brake cable is connected to the axle head for traction. The brake lever slides back and forth within the through holes of multiple brackets, and each bracket is securely connected to the floor of the RV body.

6. The sheet metal A-frame trailer chassis assembly of claim 5, wherein: The guide wheel sub-assembly includes a double row of guide wheels, a height-adjusting worm gear, and a manual crank. The double row of guide wheels and the manual crank are respectively connected to the bottom and top of the height-adjusting worm gear, which is also connected to an inertial hydraulic brake.

7. The sheet metal A-frame trailerized RV chassis assembly of claim 5, wherein, The inertial hydraulic brake is fixed to the high-strength A-type beam sub-assembly via an inertial brake connecting plate.

8. The sheet metal A-frame trailerized RV chassis assembly of claim 1, wherein, The high-strength A-type beam sub-assembly includes a first hot-formed high-strength longitudinal beam and a second hot-formed high-strength longitudinal beam, with a hot-formed high-strength crossbeam connected between the first hot-formed high-strength longitudinal beam and the second hot-formed high-strength longitudinal beam, and the three are connected in an A-shape.

9. The all-aluminum body-on-bogie recreational vehicle chassis assembly of claim 8, wherein: The first and second thermoformed high-strength longitudinal beams are each provided with a number of lugs for fastening to the RV body floor. The tail ends of the first and second thermoformed high-strength longitudinal beams are arranged in parallel and are equipped with independent suspension clips for fastening to the RV body floor and independent suspension.

10. The all-aluminum body-on-bogie RV chassis assembly of claim 1, wherein: When parking, first, the RV is brought to a stop by the action of the inertia tie rod sub-assembly. Then, the guide wheel sub-assembly is manually adjusted to lower the double row of guide wheels and make them close to the ground, providing pre-support. Next, the tow truck ball joint is disengaged from the tow truck. Finally, the first and second manual adjustable outriggers are lowered and made close to the ground. The RV body is then straightened by adjusting the first and second manual adjustable outriggers.

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