Independent suspension trailer with nitrogen damping function

Abstract

The utility model belongs to the technical field of independent suspension trailers, and particularly relates to an independent suspension trailer with nitrogen shock absorption, which comprises a trailer frame, through shafts are fixedly inserted on the lower side of the trailer frame in a bilateral symmetry manner, wheel arms are rotatably connected to the front and rear ends of the through shafts, and wheels are rotatably connected to opposite sides of the wheel arms on the front and rear sides. Pedals and crank arms are symmetrically connected to the front side and the rear side of the trailer frame, the crank arms are located on the opposite sides of the pedals, oil cylinders are movably hinged to the opposite sides of the crank arms on the front side and the rear side, the telescopic ends of the oil cylinders are movably hinged to the upper sides of wheel arms, and valve blocks are fixedly installed on the upper sides of the oil cylinders; a hydraulic energy storage type nitrogen tank is fixedly mounted on the left side of the valve block, so that the problems that an existing device is poor in damping effect, a hauled vehicle is prone to damage, and inconvenience is caused are solved; the problems that an existing device is poor in fixing effect on hauling cars and motorcycles, and therefore under inertia, the dragged cars and motorcycles are prone to displacement and are damaged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of independent suspension trailers, in particular to an independent suspension trailer with nitrogen shock absorption. Background Art

[0002] A trailer is a vehicle towed by a car but without its own power drive device. It is a combination of a car (truck or tractor, forklift) and one or more trailers. The truck and tractor are the driving vehicle sections of the car train, called the main vehicle; the driven vehicle section towed by the main vehicle is called the trailer. It is an important type of vehicle for road transportation and also the most effective and simple means to improve economic efficiency.

[0003] When a trailer is towed on the road, bumps on the road surface will cause the trailer to vibrate, and the existing device has a poor shock absorption effect, which is easy to cause damage to the towed vehicle and is relatively inconvenient. Moreover, when the trailer is towing vehicles such as cars and motorcycles, the towing main vehicle stops and starts while driving, and the existing device has a poor fixing effect on towed cars and motorcycles, resulting in the towed cars and motorcycles being easily displaced and damaged under inertia. Therefore, an independent suspension trailer with nitrogen shock absorption is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an independent suspension trailer with nitrogen shock absorption, so as to solve the problems that the existing devices proposed in the above background technology have poor shock absorption effect, easily cause damage to the towed vehicle, and are relatively inconvenient; the existing devices have poor fixing effect on towed cars and motorcycles, resulting in the towed cars and motorcycles being easily displaced and damaged under inertia.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an independent suspension trailer with nitrogen shock absorption, comprising a trailer frame, a through shaft is fixedly inserted symmetrically on the lower side of the trailer frame, the front and rear ends of the through shaft are rotatably connected to wheel arms, and the opposite sides of the wheel arms on the front and rear sides are rotatably connected to wheels, the front and rear sides of the trailer frame are symmetrically connected to pedals and crank arms, the crank arms are located on the opposite sides of the pedals, and the opposite sides of the crank arms on the front and rear sides are movably hinged with oil cylinders, the telescopic ends of the oil cylinders are movably hinged to the upper sides of the wheel arms, a valve block is fixedly installed on the upper side of the oil cylinder, a hydraulic energy storage type nitrogen tank is fixedly installed on the left side of the valve block, a rear baffle is movably hinged on the right side of the trailer frame, a leading frame is fixedly connected to the left side of the trailer frame, a tool box is fixedly connected to the upper side of the leading frame, and a baffle is symmetrically connected to the left edge of the upper side of the leading frame, and the baffle is located on the front and rear sides of the tool box.

[0006] Preferably, mudguard shoe brackets are fixedly connected to opposite sides of the wheel arms at the front and rear sides, the mudguard shoe brackets are located on the upper side of the wheel, and the mudguard shoe brackets are located on the opposite side of the oil cylinder.

[0007] Preferably, a safety lock is movably hinged on the upper side of the wheel arm, and the safety lock is clamped with the telescopic end of the oil cylinder.

[0008] Preferably, a protective cover is symmetrically connected to the front and rear sides of the trailer frame, the crank arm, the oil cylinder, the valve block and the hydraulic energy storage nitrogen tank are located on the inner side of the protective cover, and the protective cover is located on the opposite side of the pedal.

[0009] Preferably, a traction rod is fixedly connected to the left side of the leading frame, and a connecting seat is fixedly connected to the left side of the traction rod.

[0010] Preferably, the upper side of the trailer frame is evenly embedded with deck boards, the trailer frame and the deck boards are penetrated with through holes, the upper side of the deck boards is provided with car wheel slots and motorcycle wheel slots, and a horizontal ring is fixedly installed on the upper side of the deck boards.

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

[0012] 1) When the device vibrates and the trailer bumps, the wheels move up and down, pushing the wheel arms to rotate. The rotation of the wheel arms pushes the oil cylinder to extend and retract. The nitrogen in the hydraulic accumulator nitrogen tank passes into the oil cylinder through the valve block, so that the telescopic end of the oil cylinder can use the nitrogen to push back to offset the impact of the vibration, stabilize the trailer, and achieve a good shock absorption effect.

[0013] 2) When the device is used to tow a vehicle, the four wheels of the car are placed in the wheel slots of the car, or the front and rear wheels of the motorcycle are placed inside the wheel slots of the motorcycle, which can limit and stabilize the towed vehicle. The vehicle can then be tied and fixed using the ring on the upper side of the deck board, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0017] Figure 4 It is a right side structural schematic diagram of the utility model.

[0018] In the figure: 1. trailer frame, 2. through axle, 3. wheel arm, 4. wheel, 5. pedal, 6. crank arm, 7. oil cylinder, 8. valve block, 9. hydraulic accumulator nitrogen tank, 10. tailgate, 11. leading frame, 12. tool box, 13. baffle, 14. mudguard bracket, 15. safety lock, 16. protective cover, 17. towing rod, 18. connecting seat, 19. deck, 20. through hole, 21. car wheel slot, 22. motorcycle wheel slot, 23. horizontal ring. 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] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] Example:

[0022] See also Figure 1-4The utility model provides a technical solution: an independent suspension trailer with nitrogen shock absorption, including a trailer frame 1, a through shaft 2 is fixedly inserted symmetrically on the lower side of the trailer frame 1, the front and rear ends of the through shaft 2 are rotatably connected to wheel arms 3, and the opposite sides of the front and rear wheel arms 3 are rotatably connected to wheels 4. When the trailer bumps, the wheels 4 move up and down, and the front and rear sides of the trailer frame 1 are symmetrically connected to pedals 5 and crank arms 6, the crank arms 6 are located on the opposite sides of the pedals 5, and the opposite sides of the front and rear crank arms 6 are movably hinged with oil cylinders 7, the telescopic end of the oil cylinder 7 is movably hinged to the upper side of the wheel arm 3, a valve block 8 is fixedly installed on the upper side of the oil cylinder 7, and the left side of the valve block 8 is fixedly installed A hydraulic accumulator nitrogen tank 9 is installed, and the nitrogen in the hydraulic accumulator nitrogen tank 9 is passed into the oil cylinder 7 through the valve block 8, so that the telescopic end of the oil cylinder 7 can use the nitrogen to reversely push to offset the impact of vibration. A tailgate 10 is movably hinged on the right side of the trailer frame 1. The towed vehicle is pushed from the tailgate 10 to the upper side of the deck 19, and the vehicle is limited. A leading frame 11 is fixedly connected to the left side of the trailer frame 1, and a tool box 12 is fixedly connected to the upper side of the leading frame 11 for storing tools. A baffle 13 is symmetrically connected to the left edge of the upper side of the leading frame 11, and the baffle 13 is located at the front and rear sides of the tool box 12 to protect the tool box 12.

[0023] Among them, mud guard shoe brackets 14 are fixedly connected to the opposite sides of the front and rear wheel arms 3, which are used to block the mud thrown out from the wheels 4 when the device is moving. The mud guard shoe bracket 14 is located on the upper side of the wheel 4, and the mud guard shoe bracket 14 is located on the opposite side of the cylinder 7. A safety lock 15 is movably hinged on the upper side of the wheel arm 3. The safety lock 15 is clamped with the telescopic end of the cylinder 7 to clamp the telescopic end of the cylinder 7 to prevent the cylinder 7 from being damaged and causing the device to lose balance and avoid danger. The front and rear sides of the trailer frame 1 are symmetrically connected with a protective cover 16. The crank arm 6, the cylinder 7, the valve block 8 and the hydraulic energy storage type nitrogen tank 9 are located on the inner side of the protective cover 16 to protect it. The protective cover 16 is located on the opposite side of the pedal 5. The left side of the leading frame 11 is fixedly connected with A traction rod 17 is used to drive the device of the traction main vehicle. A connecting seat 18 is fixedly connected to the left side of the traction rod 17. The device is connected to the traction main vehicle through the connecting seat 18. A deck 19 is evenly embedded on the upper side of the trailer frame 1. Through holes 20 are provided through the trailer frame 1 and the deck 19. A car wheel slot 21 and a motorcycle wheel slot 22 are provided on the upper side of the deck 19. The four wheels of the car are placed in the car wheel slot 21, or the front and rear wheels of the motorcycle are placed inside the motorcycle wheel slot 22, which plays a role in limiting and stabilizing the towing vehicle. A horizontal ring 23 is fixedly installed on the upper side of the deck 19. The vehicle is tied and fixed by the horizontal ring 23 on the upper side of the deck 19, which is more convenient to fix the vehicle.

[0024] Working principle: When in use, the device is connected to the towing main vehicle through the connecting seat 18, so that the towing main vehicle drives the device through the towing rod 17, and then the towed vehicle is pushed from the tailgate 10 to the upper side of the deck 19, and then the four wheels of the car are placed in the car wheel slot 21, or the front and rear wheels of the motorcycle are placed on the inner side of the motorcycle wheel slot 22, which plays a role in limiting and stabilizing the towed vehicle, and then the vehicle is tied and fixed through the horizontal ring 23 on the upper side of the deck 19, which is more convenient to fix the vehicle. When the device is towed and vibrations are generated, when the trailer is bumpy, the wheel 4 moves up and down, pushing the wheel arm 3 to rotate, and the rotation of the wheel arm 3 pushes the oil cylinder 7 to retract, and the nitrogen in the hydraulic energy storage nitrogen tank 9 is passed into the oil cylinder 7 through the valve block 8, so that the telescopic end of the oil cylinder 7 is reversely pushed by the nitrogen to offset the influence of the vibration, stabilize the trailer, and have a good shock absorption effect.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0026] 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. An independent suspension trailer with nitrogen shock absorption, comprising a trailer frame (1), characterized in that: A through shaft (2) is fixedly inserted symmetrically on the lower side of the trailer frame (1), the front and rear ends of the through shaft (2) are rotatably connected to wheel arms (3), and the opposite sides of the wheel arms (3) on the front and rear sides are rotatably connected to wheels (4), the front and rear sides of the trailer frame (1) are symmetrically connected to pedals (5) and crank arms (6), the crank arms (6) are located on the opposite sides of the pedals (5), and the opposite sides of the crank arms (6) on the front and rear sides are movably hinged to oil cylinders (7), and the telescopic ends of the oil cylinders (7) are movably hinged to the upper sides of the wheel arms (3). A valve block (8) is fixedly mounted on the upper side of the oil cylinder (7), a hydraulic energy storage nitrogen tank (9) is fixedly mounted on the left side of the valve block (8), a rear baffle (10) is movably hinged on the right side of the trailer frame (1), a leading frame (11) is fixedly connected to the left side of the trailer frame (1), a tool box (12) is fixedly connected to the upper side of the leading frame (11), a baffle (13) is symmetrically connected to the left edge of the upper side of the leading frame (11), and the baffle (13) is located at the front and rear sides of the tool box (12).

2. The independent suspension trailer with nitrogen shock absorption according to claim 1, characterized in that: The opposite sides of the front and rear wheel arms (3) are fixedly connected with mudguard brackets (14), the mudguard brackets (14) are located on the upper side of the wheel (4), and the mudguard brackets (14) are located on the opposite side of the oil cylinder (7).

3. The independent suspension trailer with nitrogen shock absorption according to claim 1, characterized in that: A safety lock (15) is movably hinged on the upper side of the wheel arm (3), and the safety lock (15) is clamped with the telescopic end of the oil cylinder (7).

4. The independent suspension trailer with nitrogen shock absorption according to claim 1, characterized in that: The front and rear sides of the trailer frame (1) are symmetrically connected with a protective cover (16); the crank arm (6), the oil cylinder (7), the valve block (8) and the hydraulic energy storage nitrogen tank (9) are located on the inner side of the protective cover (16); and the protective cover (16) is located on the opposite side of the pedal (5).

5. The independent suspension trailer with nitrogen shock absorption according to claim 1, characterized in that: A traction rod (17) is fixedly connected to the left side of the leading frame (11), and a connecting seat (18) is fixedly connected to the left side of the traction rod (17).

6. The independent suspension trailer with nitrogen shock absorption according to claim 1, characterized in that: The upper side of the trailer frame (1) is evenly embedded with a deck (19), and both the trailer frame (1) and the deck (19) are penetrated with a through hole (20), the upper side of the deck (19) is provided with a car wheel clamping groove (21) and a motorcycle wheel clamping groove (22), and a horizontal ring (23) is fixedly installed on the upper side of the deck (19).

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