CN205971018U - Vehicle transporter - Google Patents

Abstract

The utility model provides a vehicle transport vehicle, which comprises a platform and a chassis, and the platform and the chassis are connected through a lifting device. In the lifting device, the support unit includes an upper support, a first lower support and a second lower support, the upper support is fixedly connected to the platform, and both the first lower support and the second lower support are fixedly connected to the chassis; The support unit includes an upper support arm and a lower support arm. The bottom end of the upper support arm is hinged with the top end of the lower support arm through a connecting pin, the top end of the upper support arm is hinged with the upper support, and the bottom end of the lower support arm is hinged with the first lower support arm. The support is hinged; the bottom end of the drive unit is hinged with the second lower support, and the top end is connected with the connecting pin and drives the connecting pin to lift. The upper platform is stably raised and lowered by the lifting device, and the rigid fixed connection is formed between the parts, so that the platform will not shake from side to side, ensuring the stability of the cargo, and the structure is simple, easy to install and maintain, which can effectively improve the lifting capacity of the platform. Reduce efficiency and reduce vehicle transportation costs.

Description

vehicle transporter

technical field

The utility model relates to transport equipment, in particular to a vehicle transport vehicle.

Background technique

In order to improve the transportation efficiency of conventional vehicle transport vehicles, the upper platform is usually arranged so that the main body of the carriage forms a structure of upper and lower layers. In order to meet the loading needs of different models, the height of the upper platform can be adjusted.

The platform lifting of existing vehicle transporter mainly relies on wire rope hoisting structure. This structure realizes the lifting of the transport vehicle platform through the lifting of the wire rope. Although the wire rope lifting mechanism has the advantages of light weight, corrosion resistance, good flexibility, and is suitable for traction, but during the lifting process of the transport vehicle platform, the wire rope is prone to loosening, which will cause the platform to fall off. There is a great threat to safety; in addition, the wire rope hoisting mechanism is softly connected to the platform. When the platform is lowered, because there is no fixed connection and fixed support, the platform is prone to shaking left and right, resulting in the falling of the transported goods.

There are also some vehicle transport vehicles in order to overcome the defects of the wire rope hoisting structure, and the hydraulic cylinder is combined with the slide block as the hoisting structure of the lifting power. Although this structure can form rolling friction between the platform and the slider and reduce the mechanical resistance during the lifting process, the manufacturing process of this structure is complicated, and the stroke of the oil cylinder is long, which may easily cause the instability of the oil cylinder; and when this structure When the oil cylinder is closed, the upper platform cannot fall on the lower ground, which is not conducive to loading.

Utility model content

The purpose of the utility model is to solve the problems in the prior art that when the upper platform of the vehicle transport vehicle is raised and lowered, the platform is unstable, easily shakes left and right, and is easy to fall off, the stroke of the oil cylinder is large and unstable, the platform takes off and lands in low efficiency, and wastes transportation costs.

In order to solve the above technical problems, the utility model provides a vehicle transport vehicle, including a platform and a chassis, the platform and the chassis are connected by a lifting device, and the lifting device includes: a support unit, including an upper support, a first lower support seat and a second lower support, the upper support is fixedly connected to the platform, the first lower support and the second lower support are arranged at intervals and are fixedly connected to the chassis; a support unit includes An upper support arm and a lower support arm, the bottom end of the upper support arm is hinged with the top end of the lower support arm through a connecting pin, the top end of the upper support arm is hinged with the upper support, and the lower support arm The bottom end of the drive unit is hinged with the first lower support; the bottom end of the drive unit is hinged with the second lower support, and the top end is connected with the connecting pin shaft and drives the connecting pin shaft up and down.

Preferably, both the first lower support and the second lower support protrude from the chassis, and the upper support protrudes from the platform and is located between the first lower support and the second lower support. Just above the interval between the two lower supports.

Preferably, the upper support arm is provided with a first accommodation portion for accommodating the lower support arm, and the lower support arm is provided with a second accommodation portion for accommodating the drive unit; when the platform is lowered to the lowest point , the lower support arm is accommodated inside the first housing portion, and the driving unit is accommodated inside the second housing portion.

Preferably, the top end of the upper support arm is provided with a first hinge point, and is hinged to the upper support through a first pin; the bottom end of the lower support arm is provided with a second hinge point, and is hinged through a second The pin shaft is hinged with the first lower support; the lower end of the drive unit is provided with a third hinge point, and is hinged with the second lower support through the third pin shaft; the first hinge point, the The second hinge point and the third hinge point are located in the same vertical plane.

Preferably, the line connecting the first hinge point, the second hinge point and the third hinge point forms an acute triangle.

Preferably, the driving unit is an oil cylinder, and the oil cylinder expands and contracts to drive the connecting pin shaft up and down, and to rotate the upper support arm and the lower support arm.

Preferably, the lifting device further includes a positioning column, the positioning column is a telescopic sleeve structure, including a hollow outer tube and a support tube that is arranged inside the outer tube and can slide up and down inside the outer tube; Both the outer tube and the support tube are provided with a plurality of positioning holes of different heights, and the positioning pin shaft passes through the concentric positioning holes on the outer tube and the support tube to position the support tube at different heights in the outer tube; The bottom end of the outer tube is fixedly connected to the bottom end of the oil cylinder, and the top end of the support pipe is fixedly connected to the top end of the oil cylinder.

Preferably, the two ends of the oil cylinder are respectively provided with a first connecting piece and a second connecting piece; the top end of the support pipe is fixedly connected with the first connecting piece, and the bottom end of the outer tube is connected with the second connecting piece. The connecting piece is fixedly connected.

Preferably, the lifting device is arranged at the rear of the vehicle transporter.

As can be seen from the above technical solutions, the beneficial effects of the utility model are:

In the vehicle transport vehicle of the present utility model, the upper platform is raised and lowered by the lifting device, which forms a stable support between the platform and the chassis, abandons the use of wire ropes, and ensures the stability of the platform during the lifting process; The supporting unit and the driving unit in the device are overlapped, which effectively shortens the movement stroke of the oil cylinder and avoids the situation of unstable operation of the oil cylinder caused by too long stroke, and after the oil cylinder of the utility model is closed, the upper platform can maximize The ground falls on the ground, which is easy to load the upper layer of goods; at the same time, the lifting device forms a rigid fixed connection with the platform and the chassis through the support unit, so that the platform will not shake left and right during the lifting process, ensuring the stability of the goods being carried; in addition , The lifting device of the transport vehicle of the utility model has a simple structure, is easy to install, and is convenient to maintain, which can effectively improve the lifting and landing efficiency of the platform and reduce the transportation cost of the vehicle.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the vehicle transporter of the present invention.

Reference signs are explained as follows: 1, vehicle transport vehicle; 11, platform; 12, chassis; 2, lifting device; 21, support unit; 211, upper support; 212, first lower support; 213, second lower Bearing; 22, support unit; 221, upper support arm; 222, lower support arm; 23, drive unit; 232, first connector; 233, second connector; 234, cylinder body; 235, piston rod; 24 , connection pin; 25, first pin; 26, second pin; 27, third pin; 28, positioning column; 281, outer tube; 282, support tube; 283, positioning hole; 29, positioning pin axis.

detailed description

Typical implementations embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the utility model can have various changes in different embodiments, all of which do not depart from the scope of the utility model, and the description and illustrations therein are used as illustrations in nature, not for To limit the utility model.

In order to further illustrate the principle and structure of the utility model, the preferred embodiments of the utility model will be described in detail in conjunction with the accompanying drawings.

Although the utility model relates to a vehicle transport vehicle, the transport object can also be applicable to the transport of equipment such as agricultural machinery, small ships or heavy machines, in addition to vehicles.

Referring to FIG. 1 , the vehicle transporter 1 of this embodiment includes a platform 11 and a chassis 12 , and the platform 11 and the chassis 12 are connected by a lifting device 2 . The lifting device 2 is arranged at the tail of the vehicle transporter 1 to realize the rising and falling of the platform 11 .

When the platform 11 is lowered to the set position by the lifting device 2, the platform 11 is in a tilted state, which is convenient for the loading of goods on the platform 11; after the platform 11 is lifted by the lifting device 2, the loading of the goods on the chassis 12 can be carried out, thereby realizing the vehicle transport vehicle 1 for the carriage of goods.

The lifting device 2 of this embodiment includes a support unit 21 , a supporting unit 22 and a driving unit 23 .

Wherein, the support unit 21 is fixedly connected with the vehicle transporter 1, and provides connection points for the support unit 22 and the drive unit 23, which can avoid the direct connection of the support unit 22 and the drive unit 23 with the vehicle transporter 1, and the platform 11 and the chassis 12 Cause damage; the supporting unit 22 is rotationally connected with the platform 11 and the chassis 12, and the driving unit 23 provides driving power for the supporting unit 22 to change the state of the supporting unit 22 and make the platform 11 rise or fall.

Further, referring to FIG. 1 , the support unit 21 of this embodiment includes an upper support 211 , a first lower support 212 and a second lower support 213 . The upper support 211 is welded with the platform 11, and the first lower support 212 and the second lower support 213 are welded with the chassis 12, so that the support unit 21 and the vehicle transporter 1 form a stable fixed connection, which is convenient for the stable lifting of the platform 11 , will not swing left and right.

The upper support 211 protrudes from the platform 11 , and the first lower support 212 and the second lower support 213 protrude from the chassis 12 , that is, the support unit 21 is disposed on the outer edges of the platform 11 and the chassis 12 . In this way, the lifting device 2 is located on the outside of the vehicle transporter 1, which can ensure that the platform 11 can be close to the chassis 12 to the greatest extent when it is lowered to the lowest point, which is beneficial to the loading of goods.

In addition, there is a gap between the first lower support 212 and the second lower support 213 in this embodiment, and the upper support 211 is arranged directly above the gap. This arrangement can effectively reduce the space occupied by the lifting device 2 , reduce the movement process of the driving unit 23, and avoid the unstable situation of the lifting device 2 caused by the excessive movement process.

As shown in Figure 1, the support unit 22 includes an upper support arm 221 and a lower support arm 222, both of which are connected in rotation, and the bottom end of the upper support arm 221 and the top end of the lower support arm 222 in this embodiment are hinged through a connecting pin 24 .

The top of the upper support arm 221 is provided with a first hinge point, and the first pin shaft 25 passes through the first hinge point, so that the upper support arm 221 is hinged with the upper support 211; the bottom end of the lower support arm 222 is provided with a second hinge point , the second pin shaft 26 passes through the second hinge point, so that the lower support arm 222 is hinged with the first lower support 212, so that the support unit 22, the upper support 211 and the first lower support 212 are all rotatable connect.

In order to allow the platform 11 to contact the chassis 12 when lowered to the lowest point, the upper support arm 221 is provided with a first receiving portion, and the lower support arm 222 is provided with a second receiving portion. The size of the first receiving part is adapted to the size of the lower support arm 222, and the size of the second receiving part is adapted to the size of the drive unit 23. When the platform 11 is lowered to the lowest point, the lower support arm 222 can be accommodated inside the first receiving part , the driving unit 23 can be accommodated inside the second housing portion, and no barrier will be formed between the platform 11 and the chassis 12, so that the platform 11 can fall on the chassis 12, which is beneficial to loading of goods.

Still referring to FIG. 1 , the drive unit 23 in this embodiment is an oil cylinder, which includes a cylinder body 234 and a piston rod 235 , the top of the piston rod 235 is connected to the connecting pin 24 , and the expansion and contraction of the piston rod 235 can drive the connecting pin 24 Lifting, and make the upper support arm 221 rotate around the first hinge point, make the lower support arm 222 rotate around the second hinge point, the rotation axes of the upper support arm 221 and the lower support arm 222 are all along the length direction of the vehicle transporter 1.

The bottom of the oil cylinder block 234 is provided with a third hinge point, and the third pin shaft 27 passes through the third hinge point, so that the oil cylinder is hinged with the second lower support 213, and the rotation axis of the oil cylinder is also along the length of the vehicle transporter 1. direction.

The third hinge point of this embodiment is located in the same vertical plane as the first hinge point and the second hinge point, and the line connecting the first hinge point, the second hinge point and the third hinge point can form an acute triangle In this way, it can not only ensure that the platform 11 can be lifted and lowered stably in the vertical direction, but also enable the driving device and the supporting device to form a stable support between the platform 11 and the chassis 12 .

Although the connecting pin shaft 24 can be positioned at a fixed height by controlling the amount of oil in the oil cylinder, so as to realize the platform 11 rising or falling to a predetermined position, in order to ensure the stability of the oil cylinder positioning and strengthen the supporting strength of the lifting device 2, The lifting device 2 in this embodiment is also provided with a positioning column 28 . The positioning column 28 is fixedly connected with the oil cylinder, and the two cooperate with each other to make the platform 11 stably positioned at a certain height.

The positioning column 28 is a telescopic sleeve structure, including a hollow outer tube 281 and a support tube 282 disposed inside the outer tube 281 and capable of sliding up and down inside the outer tube 281 . The bottom end of the outer tube 281 is fixedly connected to the bottom end of the cylinder body 234, and the top end of the support tube 282 is fixedly connected to the top end of the piston rod 235, so that when the piston rod 235 performs telescopic movement, the support tube 282 can also be synchronized inside the outer tube 281 Swipe up and down.

In this embodiment, the outer tube 281 and the support tube 282 are provided with a plurality of positioning holes 283 of different heights. When the piston rod 235 expands and contracts to make the platform 11 reach a predetermined height, the positioning pin 29 can pass through the outer tube 281 and the support tube 282. The concentric positioning hole 283 on the support tube 282 positions the support tube 282 in the outer tube 281 , and at this time, the positioning column 28 cooperates with the oil cylinder to provide positioning support for the platform 11 .

In addition, in order to strengthen the fixed connection between the positioning column 28 and the oil cylinder, the two ends of the oil cylinder are respectively provided with a first connecting piece 232 and a second connecting piece 233 . In this embodiment, the first connector 232 is two pieces of metal fixed on the top of the piston rod 235, the second connector 233 is two pieces of metal fixed on the bottom of the cylinder 234, and the top of the support tube 282 is welded to the cylinder. On the two metal sheets at the top, the bottom of the outer tube 281 is welded on the two metal sheets at the bottom end of the oil cylinder, so that the positioning column 28 and the oil cylinder can be guaranteed to form a stable fixed connection.

The working principle of the lifting device 2 of the present embodiment is introduced below:

When the platform 11 needs to rise, the positioning pin shaft 29 on the positioning column 28 is removed, and the piston rod 235 is ejected outwards, driving the support tube 282 to stretch out from the outer tube 281, and also driving the connecting pin shaft 24 to perform an upward movement. The support arm 221 rotates counterclockwise around the first hinge point, at the same time, the lower support arm 222 rotates clockwise around the second hinge point, and the oil cylinder and the positioning column 28 rotate clockwise around the third hinge point synchronously. When the platform 11 reaches the predetermined height, the piston rod 235 stops extending, and the positioning pin shaft 29 is inserted in the positioning hole 283 concentric with the support tube 282 and the outer tube 281, so that the platform 11 is positioned at the predetermined height.

When the platform 11 needs to be lowered, the positioning pin shaft 29 on the positioning column 28 is removed, and the piston rod 235 retracts inwardly, driving the support tube 282 to slide inside the outer tube 281, and also driving the connecting pin shaft 24 to perform a downward movement, and the upper support The arm 221 rotates clockwise around the first hinge point, at the same time, the lower support arm 222 rotates counterclockwise around the second hinge point, and the oil cylinder and the positioning post 28 rotate counterclockwise around the third hinge point synchronously. When the platform 11 descends to a predetermined height, the piston rod 235 stops retracting, and the positioning pin shaft 29 is inserted in the positioning hole 283 concentric with the support tube 282 and the outer tube 281, so that the platform 11 is positioned at the predetermined height.

It can be seen that the upper platform of the vehicle transport vehicle in this embodiment is raised and lowered by the lifting device, and the lifting device forms a stable support between the platform and the chassis, abandoning the use of wire ropes, and ensuring the stability of the platform during the lifting process; The supporting unit and the driving unit in the lifting device are arranged overlappingly, which effectively shortens the movement stroke of the oil cylinder and avoids the situation of unstable operation of the oil cylinder caused by too long stroke, and after the oil cylinder of the utility model is closed, the upper platform can be maximized It falls on the ground to a maximum extent, which is easy to load the goods on the upper layer; at the same time, the lifting device forms a rigid fixed connection with the platform and the chassis through the support unit, so that the platform will not shake left and right during the lifting process, ensuring the stability of the goods carried; In addition, the lifting device of the transport vehicle of the utility model has a simple structure, is easy to install and maintain, can effectively improve the lifting and landing efficiency of the platform, and reduce the transportation cost of the vehicle.

While the invention has been described with reference to a few exemplary embodiments, it is understood that the words which have been used are words of description and illustration, rather than of limitation. Since the invention can be embodied in various forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly defined within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents should be covered by the appended claims.

Claims (9)

1. A vehicle carrier, comprising a platform and a chassis, characterized in that, The platform and the chassis are connected by a lifting device, and the lifting device includes: The support unit includes an upper support, a first lower support and a second lower support, the upper support is fixedly connected to the platform, and the first lower support and the second lower support are arranged at intervals and are fixedly connected with the chassis; The support unit includes an upper support arm and a lower support arm, the bottom end of the upper support arm is hinged to the top end of the lower support arm through a connecting pin, and the top end of the upper support arm is hinged to the upper support. The bottom end of the lower support arm is hinged to the first lower support; The drive unit has a bottom end hinged to the second lower support, and a top end connected to the connecting pin shaft to drive the connecting pin shaft up and down. 2. The vehicle carrier according to claim 1, wherein the first lower support and the second lower support protrude from the chassis, and the upper support protrudes from the platform , and located directly above the interval between the first lower support and the second lower support. 3. The vehicle transporter according to claim 1, wherein the upper support arm is provided with a first receiving portion for accommodating the lower support arm, and the lower support arm is provided with a first receiving portion for accommodating the driving unit. The second receiving part; when the platform is lowered to the lowest point, the lower support arm is stored inside the first receiving part, and the drive unit is stored inside the second receiving part. 4. The vehicle carrier according to claim 1, wherein the top of the upper support arm is provided with a first hinge point, and is hinged to the upper support through a first pin; the lower support arm The bottom end of the drive unit is provided with a second hinge point, and is hinged with the first lower support through a second pin; the lower end of the drive unit is provided with a third hinge point, and is hinged with the second bearing Lower support hinge; The first hinge point, the second hinge point and the third hinge point are located in the same vertical plane. 5 . The vehicle transporter according to claim 4 , wherein a line connecting the first hinge point, the second hinge point and the third hinge point forms an acute triangle. 6. The vehicle transporter according to claim 1, wherein the drive unit is an oil cylinder, and the oil cylinder expands and contracts to drive the connecting pin shaft up and down, and make the upper support arm and the lower support arm turn. 7. The vehicle transport vehicle according to claim 6, wherein the lifting device further comprises a positioning column, and the positioning column is a telescopic sleeve structure, including a hollow outer tube and a The support tube inside and can slide up and down inside the outer tube; the outer tube and the support tube are provided with a plurality of positioning holes of different heights, and the positioning pin shaft passes through the concentric positioning holes on the outer tube and the support tube, and the the support tubes are positioned at different heights within the outer tube; The bottom end of the outer tube is fixedly connected to the bottom end of the oil cylinder, and the top end of the support pipe is fixedly connected to the top end of the oil cylinder. 8. The vehicle transport vehicle according to claim 7, characterized in that, the two ends of the oil cylinder are respectively provided with a first connecting piece and a second connecting piece; the top end of the support pipe is fixed to the first connecting piece connected, the bottom end of the outer tube is fixedly connected with the second connecting piece. 9. The vehicle transporter according to claim 2, wherein the lifting device is arranged at the rear of the vehicle transporter.