Trailer structure

Abstract

The utility model discloses a trailer structure, which belongs to the field of trailers and comprises an upper carriage and a lower carriage, the lower carriage is connected with wheels, and the middle position of the upper carriage in the front-back direction is rotatably connected with the middle position of the lower carriage in the front-back direction through a rotating shaft. A first oil cylinder is connected between the upper end face of the front portion of the lower carriage and the lower end face of the lower portion of the upper carriage, and the first oil cylinder can drive the upper carriage to rotate around the rotating shaft relative to the lower carriage. The rear end of the upper dragging plate is rotationally connected with a turning plate, a connecting block is arranged at the bottom of the turning plate, a second oil cylinder is connected between the connecting block and the bottom of the rear portion of the upper dragging plate, and the second oil cylinder can drive the turning plate to turn over. According to the structure, the overall height of the trailer plate can be increased, collision with a wheel protection structure of a trailer is avoided, meanwhile, the angle between the turning plate and the ground is not affected, and it is guaranteed that a racing car can be transferred to the trailer plate through the turning plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of trailer, concretely relates to a trailer structure. BACKGROUND

[0002] In order to facilitate the transfer of the current trailer, the height of the trailer is often designed to be relatively low, the purpose is to facilitate the rear flap to land as large as possible Angle, to avoid the interference between the racecar chassis and the flap.

[0003] However, the low chassis will cause the height of the wheels on both sides of the trailer to be higher than the upper end surface of the trailer disc, and the racecar often collides with the wheel protection structure on both sides of the trailer when transferring to the trailer disc, which causes damage to the racecar and the trailer.

[0004] In addition, the current modified off-road vehicle is widened, which causes the original tray to be unable to be applied due to the limitation of the wheel structure, so the tray of the trailer needs to be widened, and the widened tray will conflict with the low chassis wheel structure.

[0005] In view of the above problems, the utility model designs and manufactures a trailer structure to overcome the above defects. UTILITY MODEL CONTENTS

[0006] For the problems existing in the prior art, the trailer structure provided by the utility model can improve the overall height of the trailer disc, avoid collision with the wheel protection structure of the trailer, and at the same time, does not affect the angle between the flap and the ground, ensures that the racecar can be transferred to the trailer disc through the flap, and further widens the disc surface of the trailer.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme: a trailer structure, comprising an upper trailer plate and a lower trailer plate, the lower trailer plate is connected with wheels, the middle position of the upper trailer plate in the front-rear direction is rotationally connected with the middle position of the lower trailer plate in the front-rear direction through a rotating shaft, a first oil cylinder is connected between the upper end surface of the front of the lower trailer plate and the lower end surface of the lower part of the upper trailer plate, the first oil cylinder can drive the upper trailer plate to rotate relative to the lower trailer plate around the rotating shaft.

[0008] The rear end of the upper trailer plate is rotationally connected with a flap, the bottom of the flap is provided with a connecting block, a second oil cylinder is connected between the connecting block and the bottom of the rear of the upper trailer plate, and the second oil cylinder can drive the flap to overturn.

[0009] Preferably, the upper end surface of the upper trailer plate is higher than the top of the wheel.

[0010] Preferably, when the first oil cylinder is not extended, the bottom of the upper trailer plate is arranged on the upper end surface of the lower trailer plate.

[0011] Preferably, the upper end surface of the upper trailer plate near the rear end position is inclined downwardly rearward.

[0012] Preferably, the second oil cylinder is extended, and the flap is in a vertical state.

[0013] Preferably, the first oil cylinder is extended, and the second oil cylinder is extended, and the end of the flap can abut on the ground, and the upper end surface of the flap and the inclined upper end surface of the rear end of the upper trailer are located on the same inclined surface.

[0014] Preferably, vertical protective plates are arranged at both sides and front end positions of the upper end surface of the upper trailer.

[0015] The utility model has the advantages of:

[0016] 1. The utility model discloses a upper trailer is arranged above the original lower trailer, and the height of the upper end surface of the upper trailer is higher than the wheel, which avoids the contact between the protective structure of the wheel and the upper trailer during the transfer of the racing car, and the size of the flap does not change although the height of the trailer structure is improved, and the angle between the flap and the ground is kept unchanged by inclining the rear end of the upper trailer downward during use, which avoids the interference between the bottom of the racing car and the flap during the transfer of the racing car.

[0017] 2. The upper trailer of the utility model is arranged above the wheel, so the interference with the wheel is avoided, and the width of the upper trailer is widened to adapt to the modified off-road vehicle with increased width. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a side view of a trailer structure when the first oil cylinder is not extended and the second oil cylinder is extended.

[0019] Fig. 2 It is a side view of a trailer structure when the first oil cylinder is extended and the second oil cylinder is retracted.

[0020] Fig. 3 It is a structure schematic view of the bottom of a trailer structure.

[0021] In the figure: 1 is a lower trailer, 2 is an upper trailer, 3 is a wheel, 4 is a flap, 5 is a second oil cylinder, and 6 is a first oil cylinder. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below with reference to the drawings.

[0023] As Figs. 1 to 3As shown, a trailer structure comprises an upper trailer plate 2 and a lower trailer plate 1, the upper trailer plate 2 is arranged above the lower trailer plate 1, the upper end surface of the upper trailer plate 2 is preferably provided with vertical guard plates on both sides and at the front end position, the lower trailer plate 1 is connected with wheels 3, the upper end surface of the upper trailer plate 2 is higher than the top of the wheels 3, the middle position of the upper trailer plate 2 in the front-rear direction is rotationally connected with the middle position of the lower trailer plate 1 in the front-rear direction through a rotating shaft, the first oil cylinder 6 is connected between the upper end surface of the lower trailer plate 1 in front and the lower end surface of the upper trailer plate 2 below, and the first oil cylinder 6 can drive the upper trailer plate 2 to rotate around the rotating shaft relative to the lower trailer plate 1.

[0024] The rear end of the upper trailer plate 2 is rotationally connected with a flap 4, the bottom of the flap 4 is provided with a connecting block, the connecting block and the rear bottom of the upper trailer plate 2 are connected with the second oil cylinder 5, and the second oil cylinder 5 can drive the flap 4 to overturn.

[0025] The utility model discloses a trailer structure, which comprises an upper trailer plate 2 and a lower trailer plate 1, wherein the upper trailer plate 2 is arranged above the lower trailer plate 1, the upper end surface of the upper trailer plate 2 is higher than the top of the wheels 3, and the upper end surface of the upper trailer plate 2 is inclined downward at the rear end position.

[0026] Moreover, since the upper trailer plate 2 is arranged above the wheels 3, the interference problem with the wheels 3 can be avoided, and by widening the width of the upper trailer plate 2, the modified off-road vehicle with increased width can be applied.

[0027] Specifically, when the first oil cylinder 6 is not extended, the bottom of the upper trailer plate 2 is arranged on the upper end surface of the lower trailer plate 1, so that when the racing car is on the upper trailer plate 2, sufficient supporting force can be ensured.

[0028] The upper end surface of the upper trailer plate 2 near the rear end position is arranged in an inclined manner downward, so that the angle between the flap 4 and the ground can be further reduced.

[0029] When the first oil cylinder 6 is extended and the second oil cylinder 5 is extended, the end of the flap 4 can abut against the ground, and the upper end surface of the flap 4 and the inclined upper end surface of the rear end of the upper trailer plate 2 are located on the same inclined surface.

[0030] It should be understood that the use of these embodiments is only for the purpose of illustrating the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various modifications, modifications and / or variations to the utility model, and all these equivalent forms also fall within the protection scope defined by the claims attached to the present application.

Claims

1. A trailer structure, characterized in that, It includes an upper trailer plate and a lower trailer plate. The lower trailer plate is connected to a wheel. The middle position of the upper trailer plate in the front-back direction and the middle position of the lower trailer plate in the front-back direction are rotatably connected by a rotating shaft. A first hydraulic cylinder is connected between the upper front end face of the lower trailer plate and the lower bottom end face of the upper trailer plate. The first hydraulic cylinder can drive the upper trailer plate to rotate relative to the lower trailer plate around the rotating shaft. The upper trailer plate is rotatably connected to a flap, and the flap is provided with a connecting block at the bottom. A second hydraulic cylinder is connected between the connecting block and the bottom of the upper trailer plate. The second hydraulic cylinder can drive the flap to flip.

2. The trailer structure according to claim 1, characterized in that, The upper surface of the upper trailer plate is higher than the top of the wheel.

3. A trailer structure according to claim 1, characterized in that, When the first hydraulic cylinder is not extended, the bottom of the upper drag plate rests on the upper surface of the lower drag plate.

4. A trailer structure according to claim 1, characterized in that, The upper end of the upper slide plate near the rear end is tilted downwards and backwards.

5. A trailer structure according to claim 1, characterized in that, When the second hydraulic cylinder extends, the flap is in a vertical position.

6. A trailer structure according to claim 1, characterized in that, When the first hydraulic cylinder extends and the second hydraulic cylinder extends, the end of the flap can abut against the ground, and the upper surface of the flap and the inclined upper surface of the rear end of the upper trailer are located on the same inclined plane.

7. A trailer structure according to claim 1, characterized in that, Vertical protective plates are provided on both sides of the upper surface and at the front end of the upper slide plate.

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