CN211167165U - Low flat-bed semi-trailer with detachable gooseneck - Google Patents

Abstract

The utility model discloses a low flat-bed semitrailer of gooseneck detachable, including gooseneck and frame, its characterized in that: the gooseneck comprises gooseneck outrigger, gooseneck inner tower, first hydraulic cylinder, second hydraulic cylinder, connecting plate and first round pin post, the lower part of gooseneck inner tower articulates the lower part at the gooseneck outrigger, first hydraulic cylinder's cylinder end articulates on the upper portion of gooseneck outrigger, and the tailpiece of the piston rod on it articulates the upper portion at the gooseneck inner tower, the second round pin post uses the cooperation with the second pinhole, first pinhole uses the cooperation with first round pin post, the utility model discloses the advantage compared with prior art lies in: wholly can remove haulage vehicle to the frame by the front end of frame on, load simple swift, improve loading efficiency, the focus is lower when the vehicle removes, factor of safety is high.

Description

Low flat-bed semi-trailer with detachable gooseneck

Technical Field

The utility model relates to a semitrailer technical field specifically indicates a gooseneck detachable hangs down flat-bed semitrailer.

Background

Low flatbed semi-trailers are commonly used to transport heavy vehicles (e.g., tractors, buses, trucks, etc.), rail vehicles, mining machines, forestry machines, construction machines (e.g., excavators, dozers, loaders, pavers, cranes, etc.) and other heavy goods, the lower the center of gravity, the better the stability and safety, and the greater the ability to transport ultra-high goods and through overhead obstacles.

When loading a vehicle on a low flatbed semi-trailer, the vehicle is usually loaded from the rear end of the semi-trailer, that is, the vehicle is moved from the rear end of the frame or the wheels are removed, and then the vehicle is fixed on the semi-trailer, which is complicated, the loading efficiency is low, the loading stability is poor, the safety factor is low, and therefore, the improvement is needed.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to overcome above technical defect, provide a gooseneck detachable low flat-bed semitrailer that loading efficiency is high, safety and stability.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a gooseneck-detachable low-flat-plate semitrailer comprises a gooseneck and a frame, wherein the gooseneck is composed of a gooseneck outer frame, a gooseneck inner frame, a first hydraulic cylinder, a second hydraulic cylinder, a connecting plate and a first pin cylinder, the lower portion of the gooseneck inner frame is hinged to the lower portion of the gooseneck outer frame, the cylinder end of the first hydraulic cylinder is hinged to the upper portion of the gooseneck outer frame, the piston rod end of the first hydraulic cylinder is hinged to the upper portion of the gooseneck inner frame, the connecting plate is fixed to the lower portion of the gooseneck inner frame and provided with a second pin hole, a second pin cylinder is vertically fixed to the front end face of the frame and matched with the second pin hole, the end of the second hydraulic cylinder is hinged to the gooseneck inner frame, the piston rod end of the second hydraulic cylinder is hinged to the first pin cylinder, the first pin cylinder slides on the gooseneck inner frame, and the upper end face of the frame is provided with a first pin hole, the first pin hole is matched with the first pin column.

The gooseneck outer frame is provided with a ground falling prevention mechanism, the ground falling prevention mechanism is composed of a support frame and a third hydraulic oil cylinder, one end of the support frame is hinged to the front portion of the gooseneck outer frame, the other end of the support frame is hinged to a piston rod end of the third hydraulic oil cylinder, and a cylinder barrel end of the third hydraulic oil cylinder is hinged to the rear portion of the gooseneck outer frame.

And idler wheels are rotatably arranged at two ends of a hinged shaft between the support frame and the third hydraulic oil cylinder and can be abutted against a girder of the tractor.

The front end both sides of frame are articulated to have the cat ladder.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the utility model provides a low flatbed semitrailer of gooseneck detachable has included the gooseneck, a vehicle rack, first hydraulic cylinder, the second hydraulic cylinder, first round pin post, second round pin post etc, cooperation through first round pin post and first pinhole, the cooperation of second round pin post and second pinhole realizes dismantling between gooseneck inner tower and the frame and be connected, realize the lifting and the falling of frame through first hydraulic cylinder, wholly can remove haulage vehicle on the frame by the front end of frame, it is simple swift to load, the efficiency of loading is improved, the focus is lower when the loaded vehicle removes, safety factor is high.

Drawings

Fig. 1 is the structure schematic diagram of the utility model relates to a gooseneck when gooseneck and frame connection in gooseneck detachable low flat-bed semitrailer.

Fig. 2 is the utility model relates to a structural schematic diagram of gooseneck when separating with the frame in the low flat-bed semi-trailer of gooseneck detachable.

As shown in the figure: 1. the gooseneck, 2, the frame, 3, the gooseneck outrigger, 4, the gooseneck inner tower, 5, first hydraulic cylinder, 6, the second hydraulic cylinder, 7, the connecting plate, 8, first round pin post, 9, the second pinhole, 10, the second round pin post, 11, first pinhole, 12, prevent weighing down the mechanism, 13, the support frame, 14, the third hydraulic cylinder, 15, the gyro wheel, 16, the cat ladder.

Detailed Description

The following description is only for the preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereby, the present invention will be further explained with reference to the drawings and the embodiments.

Examples, see fig. 1-2:

a gooseneck detachable low flat-bed semi-trailer comprises a gooseneck 1 and a frame 2, wherein the gooseneck 1 consists of a gooseneck outer frame 3, a gooseneck inner frame 4, a first hydraulic cylinder 5, a second hydraulic cylinder 6, a connecting plate 7 and a first pin 8, the lower part of the gooseneck inner frame 4 is hinged to the lower part of the gooseneck outer frame 3, rotating shafts are fixed on two sides of the lower part of the gooseneck inner frame 4 and are connected with the gooseneck outer frame 3 through bearings, the gooseneck inner frame 4 is positioned on the inner side of the gooseneck outer frame 3, the cylinder end of the first hydraulic cylinder 5 is hinged to the upper part of the gooseneck outer frame 3, the piston rod end on the first hydraulic cylinder 5 is hinged to the upper part of the gooseneck inner frame 4, the first hydraulic cylinder 5 drives the gooseneck inner frame 4 to rotate relative to the gooseneck outer frame 3, the connecting plate 7 is fixed to the lower part of the gooseneck inner frame 4 and is provided with a second pin hole 9, and the connecting plate 7 can be fixed on the gooseneck, a second pin 10 is vertically fixed on the front end face of the frame 2, the second pin 10 is matched with a second pin hole 9, the second pin 10 is inserted into the second pin hole 9 to complete the connection of the connecting plate 7 and the frame 2, wherein the diameter of the second pin hole 9 is larger than the diameter of the second pin 10 so as to meet the angle change between the frame 2 and the gooseneck 1, the cylinder end of the second hydraulic cylinder 6 is hinged on the gooseneck inner frame 4, the piston rod end on the second hydraulic cylinder is hinged on the first pin 8, the first pin 8 slides on the gooseneck inner frame 4, the piston cylinder is fixed on the gooseneck inner frame 4, the first pin 8 slides in the piston cylinder, the sliding direction of the first pin 8 is vertical to the axial direction of the second pin 10, the second hydraulic cylinder 6 drives the first pin 8 to slide on the gooseneck inner frame 4, the upper end face of the frame 2 is provided with a first pin hole 11, the first pin hole 11 is matched with the first pin column 8, the first pin column 8 is driven by the second hydraulic cylinder 6 to be inserted into the first pin hole 11, the transverse movement of the frame 2 relative to the gooseneck inner frame 4 is avoided, and the stable connection between the frame 2 and the gooseneck inner frame 4 is guaranteed.

The gooseneck outer frame 3 is provided with an anti-falling mechanism 12, the anti-falling mechanism 12 is composed of a support frame 13 and a third hydraulic oil cylinder 14, one end of the support frame 13 is hinged at the front part of the gooseneck outer frame 3, the other end of the support frame is hinged with the piston rod end of the third hydraulic oil cylinder 14, the cylinder end of the third hydraulic oil cylinder 14 is hinged at the rear part of the gooseneck outer frame 3, the third hydraulic oil cylinder 14 drives the support frame 13 to rotate on the gooseneck outer frame 3, when the piston rod of the third hydraulic oil cylinder 14 extends out, the hinged shaft of the third hydraulic oil cylinder 14 and the support frame 13 is abutted against the girder of the tractor, the piston rod of the third hydraulic oil cylinder 14 continues to extend out, the gooseneck outer frame 3 is lifted, the contact between the gooseneck outer frame 3 and the gooseneck inner frame 4 and the ground is avoided, wherein the front end of the gooseneck outer frame 3 is connected with the girder of the tractor through a connecting pin, further, two ends of a hinge shaft between the support frame 13 and the third hydraulic oil cylinder 14 are rotatably provided with rollers 15, the rollers 15 can be abutted against a girder of the tractor, and abrasion of the hinge shaft between the support frame 13 and the third hydraulic oil cylinder 14 is avoided through the rollers 15.

The front end both sides of frame 2 articulate there is cat ladder 16, and cat ladder 16 can overturn the front end of frame 2 to cat ladder 16 can form slope surface between ground and frame 2 up end after the upset, guarantees that haulage vehicle can be smooth and easy to move to frame 2 on.

When the gooseneck 1 is connected with the frame 2, a piston rod of the first hydraulic oil cylinder 5 is in a retraction state, a piston rod of the second hydraulic oil cylinder 6 is in an extension state, the third hydraulic oil cylinder 14 is in a retraction state, the first pin 8 is inserted into the first pin hole 11, the second pin 10 is inserted into the second pin hole 9, and the ladder stand 16 is turned to the upper end face of the frame 2;

when the vehicle is loaded on the vehicle frame 2, the piston rod of the second hydraulic cylinder 6 retracts to enable the first pin column 8 to be separated from the first pin hole 11, then the piston rod of the first hydraulic cylinder 5 extends to enable the front end of the vehicle frame 2 to be abutted against the ground, at the moment, the horizontal height of the front end of the vehicle frame 2 is lower than that of the rear end of the vehicle frame, then the tractor pulls the gooseneck outer frame 3 to enable the second pin column 10 to be separated from the first pin hole 9, at the moment, the separation of the gooseneck 1 and the vehicle frame 2 is completed, then the piston rod of the third hydraulic cylinder 14 extends to enable the gooseneck 1 to be lifted, then the ladder stand 16 is turned to the front end of the vehicle frame 2, the equipment to be transported moves to the vehicle frame 2 from the front end of the vehicle frame 1, then the piston rod of the third hydraulic cylinder 14 retracts to enable the gooseneck 1 to be lowered, the tractor drives the gooseneck outer frame 3 to move towards the vehicle frame 2 to enable the second pin 10 to be inserted into, at the moment, the first pin 8 is opposite to the first pin hole 9, and finally, the piston rod of the second hydraulic oil cylinder 6 extends out to enable the first pin 8 to be inserted into the first pin hole 11, so that the connection between the gooseneck 1 and the frame 2 is completed.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims (4)

1. The utility model provides a low flatbed semitrailer of gooseneck detachable, includes gooseneck (1) and frame (2), its characterized in that: the gooseneck (1) is composed of a gooseneck outer frame (3), a gooseneck inner frame (4), a first hydraulic oil cylinder (5), a second hydraulic oil cylinder (6), a connecting plate (7) and a first pin column (8), the lower portion of the gooseneck inner frame (4) is hinged to the lower portion of the gooseneck outer frame (3), a cylinder end of the first hydraulic oil cylinder (5) is hinged to the upper portion of the gooseneck outer frame (3), a piston rod end on the cylinder end is hinged to the upper portion of the gooseneck inner frame (4), the connecting plate (7) is fixed to the lower portion of the gooseneck inner frame (4), a second pin hole (9) is formed in the connecting plate, a second pin column (10) is vertically fixed to the front end face of the frame (2), the second pin column (10) is matched with the second pin hole (9), the cylinder end of the second hydraulic oil cylinder (6) is hinged to the gooseneck inner frame (4), and the piston rod end on the second pin column (8) is hinged to the first pin column (8), the first pin column (8) slides on the gooseneck inner frame (4), a first pin hole (11) is formed in the upper end face of the frame (2), and the first pin hole (11) is matched with the first pin column (8) in use.

2. The low flatbed semitrailer with the detachable gooseneck according to claim 1, characterized in that: the gooseneck outer frame (3) is provided with a ground falling prevention mechanism (12), the ground falling prevention mechanism (12) is composed of a support frame (13) and a third hydraulic oil cylinder (14), one end of the support frame (13) is hinged to the front portion of the gooseneck outer frame (3), the other end of the support frame is hinged to the piston rod end of the third hydraulic oil cylinder (14), and the cylinder barrel end of the third hydraulic oil cylinder (14) is hinged to the rear portion of the gooseneck outer frame (3).

3. The low flatbed semitrailer with the detachable gooseneck according to claim 2, characterized in that: and two ends of a hinged shaft between the support frame (13) and the third hydraulic oil cylinder (14) are rotatably provided with idler wheels (15), and the idler wheels (15) can be abutted against a girder of the tractor.

4. The low flatbed semitrailer with the detachable gooseneck according to claim 1, characterized in that: the front end of the frame (2) is hinged with a ladder (16) on two sides.

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