CN114940115A

CN114940115A - Steel coil transport vehicle

Info

Publication number: CN114940115A
Application number: CN202210688453.2A
Authority: CN
Inventors: 高莉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-08-26

Abstract

The invention discloses a steel coil transport vehicle which comprises a trailer body, wherein a plurality of grooves are uniformly formed in the top surface of a bottom plate of the trailer body, each groove is a square through groove, the side length of each square groove is 30-50cm, a transverse plate is arranged in each groove, and a first shaft transversely penetrates through the side end of each transverse plate. This coil of strip transport vechicle, can fix the coil of strip between two central barrels through the bolt, can fix the coil of strip firmly taut on the bolt on trailer body vehicle bottom plate top surface through the arc simultaneously, when meetting the emergent brake of trailer simultaneously, through first spring, a spring, the setting of third spring and diaphragm, can be fast effectual weakening offset the inertia of coil of strip, effectually prevented that the coil of strip from droing from the trailer body, the effectual coil of strip of putting that leads to of having avoided emergency braking rolls the condition emergence of pounding the driver's cabin of putting, the effectual security performance when having improved the coil of strip transportation.

Description

Steel coil transport vehicle

Technical Field

The invention relates to the field of transportation, in particular to a steel coil transport vehicle.

Background

The steel coil is transported by 'civil earthwork' which is common, a wood board and a sleeper are laid at the bottom of a trailer for fixing, but the fixing mode is still complicated, and the steel coil needs to be repeatedly bound on a fixing hook of a truck base by a steel rope; in addition, when the automobile turns or suddenly stops, due to the large mass of the steel coil, instant large pulling force is often generated on the pulling rope on one side under the action of large inertia force, even the accident that the steel coil is broken by the rope is caused, and a driver is still unaware of the fact; secondly, when the steel coil is vertically placed, once the steel coil encounters emergency braking in the transportation process, the rope can be broken instantly by the huge mass of the steel coil along with the huge kinetic energy generated by inertia, and the rope directly rushes to a cab to cause irrecoverable loss, so that the special transportation trailer for the steel coil with high safety performance is urgently needed to solve the problems.

Disclosure of Invention

In order to solve the existing problems, the invention provides a steel coil transport vehicle.

The invention is realized by the following technical scheme:

a steel coil transport vehicle comprises a trailer body, wherein a plurality of grooves are uniformly formed in the top surface of a bottom plate of the trailer body, the grooves are square through grooves, the side length of each square groove is 30-50cm, a transverse plate is arranged in each groove, a first shaft transversely penetrates through the side end of each transverse plate and is rotatably connected with the contact position of the corresponding transverse plate, the two ends of each first shaft are fixedly connected with the two ends of each groove respectively, a chamfer is arranged at one corner of the bottom of each transverse plate, a plurality of U-shaped plates are uniformly fixed at the chamfer of each transverse plate, a push plate is hinged in each U-shaped plate through a pin shaft, a first U-shaped plate is hinged at the other end of each push plate through a pin shaft, the same vertical plate is fixed on the side wall of the plurality of first U-shaped plates, a support plate is fixedly extended out of the top end of each vertical plate, a second shaft is arranged at the bottom of the side end of each support plate in a penetrating manner, and is rotatably connected with the contact position of each support plate, the two ends of the second shaft are respectively fixed with a supporting block, the bottom end of the second shaft is fixedly connected with the top surface of a bottom plate of a trailer body, one side of the supporting plate is uniformly fixed with a plurality of arc-shaped rods, the axial lead of each arc-shaped rod is consistent with the axial lead of the second shaft, the other end of each arc-shaped rod is fixed with a sliding block, an arc-shaped guide cylinder is sleeved on each sliding block, the axial lead of each arc-shaped guide cylinder is consistent with the axial lead of each arc-shaped rod, the bottom end of each arc-shaped guide cylinder is fixedly connected with the top surface of the bottom plate of the trailer body, a limiting ring is fixed at the top end of each arc-shaped guide cylinder, the limiting rings are sleeved on the arc-shaped rods and are in sliding connection with the arc-shaped rods, a spring is fixedly arranged between the top surfaces of the limiting rings and the side walls of the supporting plates, the spring is sleeved on the arc-shaped rods, the top ends of the supporting plates are fixed with mounting plates symmetrically and square rods are fixed with retaining rings at the top ends of the square rods respectively, the two square rods are respectively sleeved with a square sleeve in a sliding manner, a first spring is fixedly arranged between the top end of the square sleeve and the bottom end of the retainer ring, the first spring is sleeved on the square rods, a second U-shaped plate is fixed on one side of the square sleeve, a connecting plate is hinged in the second U-shaped plate through a pin shaft, central cylinders are respectively fixed at the other ends of the two connecting plates, the same bolt is inserted into the two central cylinders, a fixing bolt for limiting and fixing the bolt on the two central cylinders is arranged at the side end of the bolt in an inertial manner, a jack for a screw rod of the fixing bolt to penetrate is arranged at the side end of the bolt, a U-shaped connecting plate is arranged between the two connecting plates, a fixing plate is arranged in the U-shaped connecting plate, a third shaft penetrates through the central position of the side end of the fixing plate, the third shaft is rotatably connected with the contact position of the fixing plate, and the two ends of the third shaft are respectively fixedly connected with two side plates of the U-shaped connecting plate, the side end of the fixing plate is provided with a positioning hole, the two side plates of the U-shaped connecting plate are provided with the same positioning bolt in a penetrating manner, the two side plates of the U-shaped connecting plate are respectively provided with a through hole for the insertion rod of the positioning bolt to pass through, the axial lead of the insertion rod of the positioning bolt is consistent with the axial lead of the positioning hole, the insertion rod of the positioning bolt passes through the positioning hole, one side of the fixing plate is uniformly fixed with a plurality of arc-shaped plates, the side wall of the U-shaped connecting plate is attached with a baffle plate, the baffle plate is uniformly provided with a plurality of guide rods in a penetrating manner in the transverse direction, the contact part of the guide rods and the baffle plate is in sliding connection, one end of each guide rod is fixedly connected with the side wall of the U-shaped connecting plate, the other end of each guide rod is fixed with a first check ring, each baffle plate between the first check ring and the baffle plate is sleeved with a second spring, and the two ends of the baffle plates are respectively fixed with sleeves, the two sleeves are respectively sleeved with a first supporting rod in a sliding manner, the top end of the first supporting rod is fixedly provided with a second retaining ring, the central part of the first supporting rod is fixedly sleeved with a first limiting ring, the top surface of the first limiting ring is attached to the bottom end of the sleeve, a third spring is fixedly arranged between the top end of the sleeve and the bottom end of the second retaining ring, the third spring is sleeved on the first supporting rod, the bottom end of the first supporting rod is fixedly provided with a limiting block, one side of the limiting block is arc-shaped, the distance between the two limiting blocks is 30-50cm, a first connecting plate is fixedly connected between the two limiting blocks, the bottom ends of the limiting blocks are attached to the top surface of the trailer body chassis in a sliding manner, a T-shaped sliding block is fixedly arranged at the bottom ends of the limiting blocks, a T-shaped sliding groove for the T-shaped sliding block to slide is formed in the top surface of the trailer body chassis, and a first mounting plate is arranged at one side of the first connecting plate, the hydraulic cylinder is fixedly mounted on the side wall of the first mounting plate, and the telescopic end of the hydraulic cylinder penetrates through the first mounting plate and is fixedly connected with the side wall of the first connecting plate.

Preferably, the hydraulic cylinder is connected with an external hydraulic station pipeline through a conduit.

Preferably, a handle for lifting the arc-shaped plate is fixedly mounted at the top of the arc-shaped plate.

Preferably, a rib plate is fixedly arranged between the bottom of the side wall of the first supporting rod and the top surface of the limiting block.

Compared with the prior art, the invention has the beneficial effects that: this coil of strip transport vechicle, can fix the coil of strip between two central barrels through the bolt, can fix the tensioning of coil of strip firmly on the bolt on trailer body vehicle bottom plate top surface through the arc simultaneously, when meetting the urgent brake of trailer simultaneously, through first spring, a spring, the setting of third spring and diaphragm, can effectually weaken the inertia of offsetting the coil of strip fast, the effectual coil of strip that has prevented drops from the trailer body, the effectual coil of strip of putting of having avoided the perpendicular erection that emergency brake leads to rolls the condition emergence of pounding the driver's cabin, the effectual security performance when having improved the coil of strip transportation.

Drawings

FIG. 1 is a block diagram of the structure of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1 illustrating the present invention;

fig. 3 is a schematic diagram of the operation of the structure of the present invention.

In the figure: the trailer comprises a trailer body 1, a groove 2, a transverse plate 3, a first shaft 4, a U-shaped plate 5, a push plate 6, a first U-shaped plate 7, a vertical plate 8, a supporting plate 9, a second shaft 10, a supporting block 11, an arc-shaped rod 12, a sliding block 13, an arc-shaped guide cylinder 14, a limiting ring 15, a spring 16, a mounting plate 17, a square rod 18, a retaining ring 19, a square sleeve 20, a first spring 21, a second U-shaped plate 22, a connecting plate 23, a central cylinder 24, a bolt 25, a fixing bolt 26, a U-shaped connecting plate 27, a fixing plate 28, a third shaft 29, a positioning hole 30, a positioning bolt 30-1, an arc-shaped plate 31, a handle 32, a baffle 33, a guide rod 34, a first retaining ring 35, a second spring 36, a sleeve 37, a first supporting rod 38, a third spring 39, a limiting block 40, a rib plate 41, a T-shaped sliding groove 42, a T-shaped sliding block 43, a first connecting plate 44, a first mounting plate 45, a hydraulic cylinder 46, a second retaining ring 47, a second U-shaped sliding block, A first stop collar 48.

Detailed Description

The invention is described in further detail below with reference to the following figures and embodiments:

as shown in fig. 1, 2 and 3, a steel coil transportation vehicle comprises a trailer body 1, wherein a plurality of grooves 2 are uniformly formed in the top surface of a bottom plate of the trailer body 1, the grooves 2 are square through grooves, the side length of each square groove 2 is 30-50cm, a transverse plate 3 is arranged in each groove 2, a first shaft 4 transversely penetrates through the side end of each transverse plate 3, the contact part of each first shaft 4 and the transverse plate 3 is rotatably connected, the two ends of each first shaft 4 are fixedly connected with the two ends of each groove 2 respectively, a chamfer is arranged at one corner at the bottom of each transverse plate 3, a plurality of U-shaped plates 5 are uniformly fixed at the chamfer part of each transverse plate 3, a push plate 6 is hinged in each U-shaped plate 5 through a pin shaft, the other end of each push plate 6 is hinged with a first U-shaped plate 7 through a pin shaft, the same vertical plate 8 is fixed on the side wall of each first U-shaped plate 7, a support plate 9 is fixed at the top end of each vertical plate 8 extending out of each groove 2, a second shaft 10 penetrates through the bottom of the side end of the supporting plate 9, the second shaft 10 is rotatably connected with the supporting plate 9, supporting blocks 11 are respectively fixed at two ends of the second shaft 10, the bottom end of the second shaft 10 is fixedly connected with the top surface of the bottom plate of the trailer body 1, a plurality of arc-shaped rods 12 are uniformly fixed on one side of the supporting plate 9, the axial lead of each arc-shaped rod 12 is consistent with the axial lead of the second shaft 10, a sliding block 13 is fixed at the other end of each arc-shaped rod 12, an arc-shaped guide cylinder 14 is sleeved on each sliding block 13, the axial lead of each arc-shaped guide cylinder 14 is consistent with the axial lead of each arc-shaped rod 12, the bottom end of each arc-shaped guide cylinder 14 is fixedly connected with the top surface of the bottom plate of the trailer body 1, a limiting ring 15 is fixed at the top end of each arc-shaped guide cylinder 14, the limiting ring 15 is sleeved on each arc-shaped rod 12 and is slidably connected with the arc-shaped rods, and a spring 16 is fixedly arranged between the top surface of the limiting ring 15 and the side wall of the supporting plate 9, the spring 16 is sleeved on the arc-shaped rod 12, the top end of the supporting plate 9 is fixed with the mounting plate 17, two ends of the top surface of the mounting plate 17 are respectively symmetrically fixed with the square rods 18, the top end of each square rod 18 is fixed with the retainer ring 19, the two square rods 18 are respectively sleeved with the square sleeve 20 in a sliding manner, the first spring 21 is fixedly arranged between the top end of the square sleeve 20 and the bottom end of the retainer ring 19, the first spring 21 is sleeved on the square rods 18, one side of the square sleeve 20 is fixed with the second U-shaped plate 22, the second U-shaped plate 22 is hinged with the connecting plates 23 through the pin shafts, the other ends of the two connecting plates 23 are respectively fixed with the central cylinder 24, the two central cylinders 24 are inserted with the same bolt 25, the side end of the bolt 25 is provided with the fixing bolt 26 for limiting and fixing the bolt 25 on the two central cylinders 24, and the side end of the bolt 25 is provided with the jack for the screw rod of the fixing bolt 26 to pass through, a U-shaped connecting plate 27 is arranged between the two connecting plates 23, a fixing plate 28 is arranged in the U-shaped connecting plate 27, a third shaft 29 penetrates through the center of the side end of the fixing plate 28, the contact part of the third shaft 29 and the fixing plate 28 is rotatably connected, two ends of the third shaft 29 are respectively fixedly connected with two side plates of the U-shaped connecting plate 27, a positioning hole 30 is formed in the side end of the fixing plate 28, the same positioning bolt 30-1 penetrates through the two side plates of the U-shaped connecting plate 27, through holes for the insertion rods of the positioning bolts 30-1 to penetrate through are formed in the two side plates of the U-shaped connecting plate 27, the axial lead of the insertion rod of the positioning bolt 30-1 is consistent with the axial lead of the positioning hole 30, the insertion rod of the positioning bolt 30-1 penetrates through the positioning hole 30, a plurality of arc-shaped plates 31 are uniformly fixed on one side of the fixing plate 28, and a baffle plate 33 is attached to the side wall of the U-shaped connecting plate 27, a plurality of guide rods 34 are uniformly and transversely arranged on the baffle plate 33 in a penetrating manner, the contact part of the guide rods 34 and the baffle plate 33 is in sliding connection, one end of each guide rod 34 is fixedly connected with the side wall of the U-shaped connecting plate 27, the other end of each guide rod 34 is fixedly provided with a first retainer ring 35, each baffle plate 33 between the first retainer ring 35 and the baffle plate 33 is sleeved with a second spring 36, two ends of each baffle plate 33 are respectively fixed with a sleeve 37, a first support rod 38 is respectively sleeved in the two sleeves 37 in a sliding manner, the top end of each first support rod 38 is fixed with a second retainer ring 47, the central part of each first support rod 38 is fixedly sleeved with a first limiting ring 48, the top surface of each first limiting ring 48 is attached to the bottom end of the sleeve 37, a third spring 39 is fixedly arranged between the top end of each sleeve 37 and the bottom end of each second retainer ring 47, the third spring 39 is sleeved on each first support rod 38, and the bottom end of each first support rod 38 is fixed with a limiting block 40, stopper 40 one side is the arc form, and the interval between two stoppers 40 is 30-50cm, and the first connecting plate 44 of fixedly connected with between two stoppers 40, stopper 40 bottom and the laminating of 1 vehicle bottom board top surface of trailer body are slided and are established, and stopper 40 bottom mounting has T shape slider 43, set up on 1 vehicle bottom board top surface of trailer body and supply the gliding T shape spout 42 of T shape slider 43, first connecting plate 44 one side is equipped with first mounting panel 45, fixed mounting has pneumatic cylinder 46 on the first mounting panel 45 lateral wall, pneumatic cylinder 46's flexible end pierce through first mounting panel 45 and with first connecting plate 44 lateral wall fixed connection.

The hydraulic cylinder 46 is connected with an external hydraulic station pipeline through a conduit.

A handle 32 for lifting the arc plate 31 is fixedly arranged at the top of the arc plate 31.

A rib plate 41 is fixedly arranged between the bottom of the side wall of the first supporting rod 38 and the top surface of the limiting block 40.

The working principle is as follows: the invention is suitable for the transportation of the steel coil with the width of 60-150cm, when the steel coil is transported, the steel coil is firstly loaded and placed on the open slot 2 on the top surface of the bottom plate of the trailer body 1, because the width of the open slot 2 is 30-50cm, so that the steel coil can be effectively prevented from falling from the slot 2, the steel coil can be stably placed on the slot 2 on the top surface of the bottom plate of the trailer body 1, before the steel coil is placed on the top surface of the bottom plate of the trailer body 1, the following steps are required in advance: the bolts 25 on the two central cylinders 24 are pulled out, and it is necessary to pull out the positioning pin 30-1, and then lift the arc-shaped plate 31 by the handle 32, at this time, the arc plate 31 rotates clockwise around the axis of the third shaft 29 until the side wall of the fixing plate 28 is engaged with the inner side of the U-shaped connecting plate 27 and the handle 32 is released, and at this time, the fixing plate 28 and the arc plate 31 lean against the inner side of the U-shaped connecting plate 27 to be in a standing state (as shown in fig. 3). After the preparation work is done, a steel coil is placed on the open groove 2 on the top surface of the bottom plate of the trailer body 1, so that the bolt 25 and the arc-shaped plate 31 block the placement work of the steel coil.

After the steel coil is placed on the slot 2 on the top surface of the bottom plate of the trailer body 1 (as shown in fig. 3), after the two connecting plates 23 are lifted up to align the axes of the two central cylinders 24 with the axes of the core holes of the steel coil, the bolt 25 is inserted into the two central cylinders 24, so that the inserted rod of the bolt 25 simultaneously passes through the core holes of the steel coil, so that the steel coil is fixed between the two central cylinders 24, in order to prevent the bolt 25 from falling off, the fixing bolt 26 is inserted into the side end insertion hole of the inserted rod of the bolt 25, and the nut of the fixing bolt 26 is tightened, so that the bolt 25 is fixed on the two central cylinders 24 and cannot fall off from the two central cylinders 24, then the arc-shaped plate 31 is rotated counterclockwise by the handle 32 to align the positioning hole 30 on the fixing plate 28 with the through hole of the U-shaped connecting plate 27, and then the positioning bolt 30-1 is inserted into the through hole of the U-shaped connecting plate 27 and the positioning hole 30 on the fixing plate 28, the fixing plate 28 is fixed, the steel coil is hooked by the arc plate 31, and the top end of the arc plate 31 is attached to the top of the steel coil. At this moment, the retraction of the telescopic end of the hydraulic cylinder 46 is controlled again, the two limit blocks 40 and the first support rod 38 are driven to move towards the first mounting plate 45 simultaneously when the retraction of the telescopic end of the hydraulic cylinder 46 is carried out, the arc plate 31 also moves synchronously along with the first support rod 38, the steel coil is hooked to move towards the first mounting plate 45 when the arc plate 31 moves, due to the limitation of the bolt 25 on the two central cylinders 24, the moving distance of the steel coil is limited, when the first support rod 38 continues to move along with the retraction of the telescopic end of the hydraulic cylinder 46, the arc plate 31 stays in a state of hooking the tensioned steel coil, at the moment, the second spring 36 is compressed, and the steel coil is firmly tensioned and fixed on the top surface of the bottom plate of the trailer body 1 through the bolt 25.

In the process of transporting the steel coil, when the trailer body 1 is emergently braked on the way of running on the road surface, the steel coil has forward rolling inertia due to the shape weight, at the moment, the steel coil is hooked by the arc-shaped plate 31, the steel coil can drive the arc-shaped plate 31 to synchronously move, at the moment, the second spring 36 is further compressed, so that the second spring 36 can give reverse pulling force through the arc-shaped plate 31, the inertia of the steel coil can be weakened, meanwhile, when the steel coil rolls forwards, the central cylinder 24 is simultaneously pushed through the bolt 25, when the central cylinder 24 is pushed, the pushing force is given to the square sleeve 20 through the connecting plate 23, when the square sleeve 20 receives the pushing force, the received force is dispersed into horizontal forward force and vertical upward force, the vertical upward force received by the square sleeve 20 is given to the first spring 21, so that the first spring 21 is compressed, when the first spring 21 is compressed, the square sleeve 20 is given reverse pushing force, and then can also buffer and weaken the forward rolling dynamics of the coil of strip effectively, the horizontal forward force that square sleeve 20 receives gives square pole 18, square pole 18 drives the backup pad 9 and rotates counterclockwise with second shaft 10 as the axle center, several springs 16 receive the extrusion shrink at the same time, give backup pad 9 reverse thrust when spring 16 is extruded, can weaken the inertia of the coil of strip again, meanwhile, when backup pad 9 rotates counterclockwise, drive riser 8 to rotate counterclockwise with second shaft 10 as the axle center synchronously, at this time, riser 8 promotes diaphragm 3 through push pedal 6, make diaphragm 3 rotate clockwise with first shaft 4 as the axle center, thus the anterior segment part of diaphragm 3 upwarps upwards, with the upwarp of anterior segment part of diaphragm 3, the coil of strip rolling forward is just raised by the anterior segment upwarp part of diaphragm 3, can give spring 16 and first spring 21 to exert pressure when the coil of strip is lifted, spring 16 and first spring 21 are when exerted pressure, can give the stronger reverse thrust of coil of strip, and then can be more quick offset the inertia of coil of strip, also can give the ascending thrust of arc 31 when the coil of strip is lifted up, when arc 31 is upwards promoted, third spring 39 receives the extrusion shrink, third spring 39 gives the reverse decurrent thrust of arc 31, and then third spring 39 also can play the inertial effect of buffering coil of strip, so this coil of strip transport vechicle, not only can be with the coil of strip firmly fixed to trailer body 1's vehicle bottom plate top surface, when meetting trailer emergency brake simultaneously, also can effectually weaken offset the inertia of coil of strip fast, effectually prevented that the coil of strip from falling off trailer body 1, the effectual coil of strip that has avoided emergency brake to lead to of having put the coil of strip to roll the condition emergence of pounding the driver's cabin of having avoided the emergency brake more.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A steel coil transport vehicle comprises a trailer body (1) and is characterized in that; the trailer body (1) is uniformly provided with a plurality of grooves (2) on the top surface of a bottom plate, the grooves (2) are square through grooves, the side length of each square groove (2) is 30-50cm, each groove (2) is internally provided with a transverse plate (3), the side end of each transverse plate (3) transversely penetrates through a first shaft (4), the contact part of each first shaft (4) and the corresponding transverse plate (3) is rotatably connected, the two ends of each first shaft (4) are fixedly connected with the two ends of each groove (2) respectively, a chamfer is arranged at one corner at the bottom of each transverse plate (3), a plurality of U-shaped plates (5) are uniformly fixed at the chamfer part of each transverse plate (3), each U-shaped plate (5) is internally hinged with a push plate (6) through a pin shaft, the other end of each push plate (6) is hinged with a first U-shaped plate (7) through a pin shaft, and the side walls of the first U-shaped plates (7) are fixed with a vertical plate (8), the top end of the vertical plate (8) extends out of the groove (2) and is fixed with a supporting plate (9), a second shaft (10) penetrates through the bottom of the side end of the supporting plate (9), the second shaft (10) is rotatably connected with the contact part of the supporting plate (9), supporting blocks (11) are respectively fixed at two ends of the second shaft (10), the bottom end of the second shaft (10) is fixedly connected with the top surface of the bottom plate of the trailer body (1), a plurality of arc-shaped rods (12) are uniformly fixed at one side of the supporting plate (9), the axial lead of each arc-shaped rod (12) is consistent with the axial lead of the second shaft (10), a sliding block (13) is fixed at the other end of each arc-shaped rod (12), an arc-shaped guide cylinder (14) is sleeved on each sliding block (13), the axial lead of each arc-shaped guide cylinder (14) is consistent with the axial lead of each arc-shaped rod (12), the bottom end of each arc-shaped guide cylinder (14) is fixedly connected with the top surface of the bottom plate of the trailer body (1), a limiting ring (15) is fixed at the top end of the arc-shaped guide cylinder (14), the limiting ring (15) is sleeved on the arc-shaped rod (12) and is in sliding connection with the arc-shaped rod, a spring (16) is fixedly arranged between the top surface of the limiting ring (15) and the side wall of the supporting plate (9), the spring (16) is sleeved on the arc-shaped rod (12), a mounting plate (17) is fixed at the top end of the supporting plate (9), square rods (18) are symmetrically fixed at the two ends of the top surface of the mounting plate (17) respectively, a retaining ring (19) is fixed at the top end of each square rod (18), square sleeves (20) are sleeved on the two square rods (18) in a sliding manner respectively, a first spring (21) is fixedly arranged between the top end of each square sleeve (20) and the bottom end of each retaining ring (19), the first spring (21) is sleeved on each square rod (18), and a second U-shaped plate (22) is fixed on one side of each square sleeve (20), the connecting plates (23) are hinged in the second U-shaped plate (22) through pin shafts, the other ends of the two connecting plates (23) are respectively fixed with central cylinders (24), the same bolt (25) is inserted into the two central cylinders (24), the side end of the bolt (25) is provided with a fixing bolt (26) for limiting and fixing the bolt (25) on the two central cylinders (24), the side end of the bolt (25) is provided with a jack for a screw rod of the fixing bolt (26) to pass through, a U-shaped connecting plate (27) is arranged between the two connecting plates (23), a fixing plate (28) is arranged in the U-shaped connecting plate (27), a third shaft (29) penetrates through the center of the side end of the fixing plate (28), the third shaft (29) is rotatably connected with the contact part of the fixing plate (28), and the two ends of the third shaft (29) are respectively fixedly connected with the two side plates of the U-shaped connecting plate (27), the side end of the fixing plate (28) is provided with a positioning hole (30), two side plates of the U-shaped connecting plate (27) are provided with the same positioning bolt (30-1) in a penetrating manner, two side plates of the U-shaped connecting plate (27) are provided with through holes for inserting rods of the positioning bolt (30-1) to pass through, the axial lead of the inserting rod of the positioning bolt (30-1) is consistent with the axial lead of the positioning hole (30), the inserting rod of the positioning bolt (30-1) passes through the positioning hole (30), one side of the fixing plate (28) is uniformly fixed with a plurality of arc-shaped plates (31), the side wall of the U-shaped connecting plate (27) is attached with a baffle (33), the baffle (33) is uniformly and transversely provided with a plurality of guide rods (34) in a penetrating manner, the guide rods (34) are in sliding connection with the contact part of the baffle (33), one end of each guide rod (34) is fixedly connected with the side wall of the U-shaped connecting plate (27), the guide rod (34) is fixed at the other end with a first retainer ring (35), a second spring (36) is sleeved on each baffle (33) between the first retainer ring (35) and the baffle (33), sleeves (37) are respectively fixed at two ends of each baffle (33), a first support rod (38) is respectively sleeved in each sleeve (37) in a sliding manner, a second retainer ring (47) is fixed at the top end of each first support rod (38), a first limiting ring (48) is fixedly sleeved at the central part of each first support rod (38), the top surface of each first limiting ring (48) is attached to the bottom end of each sleeve (37), a third spring (39) is fixedly arranged between the top end of each sleeve (37) and the bottom end of each second retainer ring (47), each third spring (39) is sleeved on each first support rod (38), a limiting block (40) is fixed at the bottom end of each first support rod (38), and one side of each limiting block (40) is arc-shaped, the interval between two stopper (40) is 30-50cm, and the first connecting plate (44) of fixedly connected with between two stopper (40), stopper (40) bottom and trailer body (1) vehicle bottom board top surface laminating slide establish, and stopper (40) bottom mounting have T shape slider (43), set up on trailer body (1) vehicle bottom board top surface and supply gliding T shape spout (42) of T shape slider (43), first connecting plate (44) one side is equipped with first mounting panel (45), fixed mounting has pneumatic cylinder (46) on first mounting panel (45) lateral wall, the flexible end of pneumatic cylinder (46) pierce through first mounting panel (45) and with first connecting plate (44) lateral wall fixed connection.

2. The steel coil transportation vehicle as claimed in claim 1, wherein: the hydraulic cylinder (46) is connected with an external hydraulic station pipeline through a guide pipe.

3. The steel coil transportation vehicle as claimed in claim 1, wherein: the top of the arc-shaped plate (31) is fixedly provided with a handle (32) used for lifting the arc-shaped plate (31).

4. The steel coil transportation vehicle as claimed in claim 1, wherein: a ribbed plate (41) is fixedly arranged between the bottom of the side wall of the first supporting rod (38) and the top surface of the limiting block (40).