Semi-trailer carriage with high safety

Abstract

The present application relates to the technical field of semi-trailer, and discloses a semi-trailer carriage with high safety, which comprises a bottom plate, a steel roll mounting area and a protection area are arranged on the bottom plate, the protection area is provided with a groove, a movable plate, a first hydraulic cylinder and a second hydraulic cylinder which are arranged in the groove. The present application has the following advantages and effects: when the steel roll rolls backward and leaves the steel roll mounting area and enters the protection area in the event of an unexpected situation, the movable plate is turned downward under the action of the force of the steel roll, the spring elasticity forms the first blocking effect, the groove structure forms the second blocking effect, the buffer rubber column on the inner wall of the groove blocks the backward movement and rotation of the steel roll, forming the third blocking effect, the piston rod of the second hydraulic cylinder extends and is aligned with the steel roll in the protection area, forming the fourth blocking effect. Therefore, when the steel roll rolls backward in the carriage in the event of an unexpected situation, the present application effectively blocks the steel roll from rolling out of the carriage and causing serious accidents, thereby improving the safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of semi-trailers, in particular to a semi-trailer compartment with high safety. BACKGROUND

[0002] The semi-trailer is a heavy transport vehicle connected with the semi-trailer head through the hitch pin, which can effectively improve the economic benefit of highway transportation. The common transported goods of the semi-trailer are steel coils, which are also called rolled steel. The steel coil has high strength and good toughness, and is widely used. It is not easy to transport the rolled steel from the factory to various demand locations, because the risk of transporting the steel coil is much higher than that of ordinary goods. The steel coil is generally placed horizontally in the semi-trailer compartment, not vertically. Because the weight of the steel coil is large, it cannot be loaded and unloaded by manpower, and must be lifted by large lifting equipment. If the steel coil is placed vertically, the steel wire rope of the lifting equipment cannot pass through the center of the steel coil, which is not convenient for loading and unloading. Secondly, if the vehicle bounces during the vertical placement of the steel coil, the edge of the steel coil will rub and bump against the vehicle body, causing damage to the entire steel coil. If the steel coil is placed horizontally, even if the steel coil rubs and bumps against the vehicle body, it will generally only cause damage to the outermost steel coil. For the above reasons, the steel coil is generally placed horizontally with the arc of the steel coil facing downward during transportation, which has the risk of rolling out of the compartment and is relatively dangerous. SUMMARY

[0003] The purpose of the present application is to provide a semi-trailer compartment with high safety, which has the effect of reducing the risk of rolling out of the compartment and high safety when transporting steel coils.

[0004] The above technical purpose of the present application is achieved by the following technical scheme: a semi-trailer compartment with high safety, comprising a bottom plate, a steel coil mounting area is provided on the bottom plate, a protection area located behind the steel coil mounting area, the protection area is provided with a groove located on the bottom plate, a movable plate hinged to the bottom plate and located in the groove, a first hydraulic cylinder mounted in the groove, a second hydraulic cylinder mounted on the bottom plate, the first hydraulic cylinder piston rod abuts against the movable plate, an oil circuit is connected between the first hydraulic cylinder and the second hydraulic cylinder, and the second hydraulic cylinder piston rod faces the protection area.

[0005] By adopting the above technical scheme, the steel coil is mounted and fixed in the steel coil mounting area. Once the steel coil rolls backward out of the steel coil mounting area due to the bouncing and collision of the compartment during transportation, the movable plate is turned downward under the action of the force of the steel coil, driving the first hydraulic cylinder piston rod to retract. The hydraulic oil in the oil circuit is pressed to drive the second hydraulic cylinder piston rod to extend and abut against the steel coil, which plays a blocking role on the steel coil rolling backward in the compartment, so as to avoid the accident caused by the rolling of the steel coil out of the compartment as much as possible.

[0006] Further provided in the present application is that the bottom plate is provided with a mounting groove, and the second hydraulic cylinder is located in the mounting groove.

[0007] By adopting the technical scheme, the second hydraulic cylinder is located in the mounting groove, and the second hydraulic cylinder does not interfere with other operations in the carriage when the steel coil is not blocked.

[0008] The application further provides that the second hydraulic cylinder is provided with a rubber pad at the end of the piston rod.

[0009] By adopting the technical scheme, the rubber pad plays a role of contacting the steel coil, buffering and protecting the piston rod, and only the rubber pad needs to be replaced when it is damaged.

[0010] The application further provides that a spring is installed in the groove, and the upper end of the spring abuts against the movable plate.

[0011] By adopting the technical scheme, the spring plays a buffering role, so that the movable plate is slowly overturned downward after being pressed by the steel coil, the first hydraulic cylinder piston rod can be pressed downward, the spring elastic force is applied to the movable plate and transmitted to the steel coil, and the steel coil can be hindered to a certain extent. In addition, the spring prevents the movable plate from being overturned too quickly and avoids damage to the movable plate.

[0012] The application further provides that a buffer rubber column is installed on the side wall of the groove away from the steel coil mounting area, the movable plate is hinged on the side wall of the groove close to the steel coil mounting area, and a distance exists between the overturning track of the movable plate and the buffer rubber column.

[0013] By adopting the technical scheme, when the steel coil rolls backward to the protection area after being separated from the steel coil mounting area, the steel coil is embedded into the groove, the groove structure hinders the steel coil, the buffer rubber column on the inner wall of the groove is in contact with the steel coil and deformed after being pressed, and the buffer rubber column also hinders the steel coil. In addition, the buffer rubber column itself has a large friction coefficient, and a large friction force can be generated between the buffer rubber column and the steel coil, so that the rolling of the steel coil is hindered.

[0014] The application further provides that a one-way valve is installed on the oil path, and the hydraulic oil in the first hydraulic cylinder can enter the second hydraulic cylinder through the one-way valve.

[0015] By adopting the technical scheme, the piston rod of the second hydraulic cylinder can only be extended and cannot be retracted when the second hydraulic cylinder blocks the steel coil through the setting of the one-way valve.

[0016] The application further provides that the second hydraulic cylinder is located behind the groove.

[0017] The application further provides that the movable plate can be fixed to the bottom plate through high-strength bolts.

[0018] By adopting the technical scheme, when the semitrailer carriage transports other cargos, the movable plate is fixed on the carriage floor through high-strength bolts.

[0019] The beneficial effects of the present application are as follows: when the semitrailer carriage of the present application is in use, the steel coil is installed and fixed in the steel coil installation area, and when an unexpected situation occurs, the steel coil rolls backward, leaves the steel coil installation area and enters the protection area; the movable plate is turned downward under the action of the force of the steel coil, the spring elastic force forms the first blocking effect, the groove structure forms the second blocking effect, the buffer rubber column on the inner wall of the groove blocks the backward movement and rotation of the steel coil, forming the third blocking effect, the piston rod of the second hydraulic cylinder extends and is aligned with the steel coil in the protection area, forming the fourth blocking effect, therefore, when the steel coil rolls backward due to an unexpected situation, the present application effectively blocks the steel coil from rolling out of the carriage and causing serious accidents, improving safety. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a structural schematic diagram of the present application.

[0022] Figure 2 is Figure 1 the enlarged view of A in

[0023] In the figure, 1 is a bottom plate, 11 is an installation groove, 2 is a steel coil installation area, 3 is a protection area, 4 is a groove, 41 is a spring, 5 is a movable plate, 6 is a first hydraulic cylinder, 7 is a second hydraulic cylinder, 8 is an oil way, 81 is a one-way valve, and 9 is a buffer rubber column. DETAILED DESCRIPTION

[0024] The technical solutions of the present application will be described in detail below in combination with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] A semitrailer carriage with high safety, like Figures 1 to 2As shown, including the base plate 1, the base plate 1 is provided with steel roll mounting area 2, located behind the steel roll mounting area 2 protection area 3, protection area 3 is provided with the groove 4 in the base plate 1, the hinge in the groove 4 5, the first hydraulic cylinder 6 is installed in the groove 4, a plurality of second hydraulic cylinder 7 is installed in the base plate 1. The piston rod of the first hydraulic cylinder 6 is vertically upward and used to contact the movable plate 5. The second hydraulic cylinder 7 is located behind the groove 4, the piston rod thereof is towards the protection area 3, and the end of the piston rod is fixed with a rubber pad. The second hydraulic cylinder 7 corresponds to the first hydraulic cylinder 6, and the first hydraulic cylinder 6 and the second hydraulic cylinder 7 are connected by an oil line 8, a one-way valve 81 is installed on the oil line 8, the hydraulic oil in the first hydraulic cylinder 6 can enter the second hydraulic cylinder 7 through the one-way valve 81, and the hydraulic oil in the second hydraulic cylinder 7 cannot enter the first hydraulic cylinder 6 through the one-way valve 81. The base plate 1 is provided with a mounting groove 11, and the second hydraulic cylinder 7 is fixed in the mounting groove 11.

[0026] A plurality of springs 41 are fixedly installed in the groove 4, the lower end of the spring 41 is fixed in the inner wall of the groove 4, and the upper end abuts against the movable plate 5. The side wall of the groove 4 away from the steel roll mounting area 2 is fixedly installed with a buffer rubber column 9, the movable plate 5 is hinged to the side wall of the groove 4 close to the steel roll mounting area 2, and there is a distance between the movement track when the movable plate 5 is turned down and the buffer rubber column 9.

[0027] Working principle: when the semi-trailer compartment of the present application is used, the steel roll is fixedly installed in the steel roll mounting area 2, and when the steel roll rolls backward and leaves the steel roll mounting area 2 and enters the protection area 3 in the event of an unexpected situation, the movable plate 5 is turned down under the action of the force of the steel roll, the spring 41 forms a first blocking effect by the elastic force, the groove 4 forms a second blocking effect, the buffer rubber column 9 in the inner wall of the groove 4 blocks the backward movement and rotation of the steel roll, and forms a third blocking effect, the piston rod of the second hydraulic cylinder 7 is extended and aligned with the steel roll in the protection area 3, and forms a fourth blocking effect, so that when the steel roll rolls backward due to an unexpected situation, the present application effectively blocks the steel roll from rolling out of the compartment and causing serious accidents, and improves safety. When the semi-trailer compartment transports other goods, the movable plate 5 can be fixed to the base plate 1 by high-strength bolts.

Claims

1. A semi-trailer bed with high safety, characterized in that: The application relates to a steel coil protection device, which comprises a bottom plate (1), a steel coil mounting area (2) arranged on the bottom plate (1), a protection area (3) arranged behind the steel coil mounting area (2), a groove (4) arranged on the bottom plate (1), a movable plate (5) hinged to the bottom plate (1) and arranged in the groove (4), a first hydraulic cylinder (6) arranged in the groove (4), a second hydraulic cylinder (7) arranged on the bottom plate (1), a piston rod of the first hydraulic cylinder (6) abutting against the movable plate (5), an oil channel (8) connected between the first hydraulic cylinder (6) and the second hydraulic cylinder (7), a piston rod of the second hydraulic cylinder (7) facing the protection area (3), a rubber pad arranged at an end of the piston rod of the second hydraulic cylinder (7), a spring (41) arranged in the groove (4), an upper end of the spring (41) abutting against the movable plate (5), a one-way valve (81) arranged in the oil channel (8), and hydraulic oil in the first hydraulic cylinder (6) being capable of entering the second hydraulic cylinder (7) through the one-way valve (81).

2. The semi-trailer carriage with high safety according to claim 1, characterized in that: The bottom plate (1) is provided with a mounting groove (11), and the second hydraulic cylinder (7) is arranged in the mounting groove (11).

3. The semi-trailer carriage with high safety according to claim 1, characterized in that: A buffer rubber column (9) is arranged on a side wall of the groove (4) away from the steel coil mounting area (2), the movable plate (5) is hinged to a side wall of the groove (4) close to the steel coil mounting area (2), and a distance exists between a turning track of the movable plate (5) and the buffer rubber column (9).

4. The semi-trailer carriage with high safety according to claim 1, characterized in that: The second hydraulic cylinder (7) is arranged behind the groove (4).

5. The high safety semi-trailer carriage according to claim 1, characterized in that: The movable plate (5) can also be fixed to the bottom plate (1) through high-strength bolts.

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