Hydraulic supporting leg for semitrailer

Abstract

The utility model relates to the technical field of automobile accessories, and discloses a hydraulic support leg for a semitrailer, which comprises a support leg body, one side of the lower end of the support leg body is provided with a storage mechanism, the other side of the upper end of the support leg body is rotatably connected with a rotating piece, the front side of the rotating piece is provided with a second motor, and the second motor is connected with the storage mechanism. And a first motor is mounted on the inner side of the fixing piece. The supporting leg body can be transversely stored at the lower part of a carriage of the semitrailer through the storage mechanism, so that the supporting leg body is prevented from being scraped in the driving process of the semitrailer; the second motor drives the supporting leg body to rotate, and the angle of the supporting leg body can be adjusted in the left-right direction; the first motor drives the rotating piece, the second motor and the supporting leg body to rotate together, and the angle of the supporting leg body can be adjusted in the front-back direction; therefore, the carriage part of the semitrailer can be jacked up and transversely moved by a small distance, so that the semitrailer can turn, reverse and turn around at the position with the limited area.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a hydraulic outrigger used for a semitrailer. Background Art

[0002] In recent years, the country has been continuously promoting and popularizing more efficient drop-and-hook transportation. However, some small links in the process of drop-and-hook transportation have seriously reduced the transportation efficiency. In order to improve the efficiency of hanging transportation, it is necessary to use hydraulic outriggers; when the tractor is uncoupled from the trailer, it is used to support the ground and accept part of the load of the semi-trailer.

[0003] A Chinese patent discloses a new type of hydraulic outrigger for a semi-trailer (Announcement No. CN106114469A). This patented technology realizes the automatic lifting and lowering of the retractable frame through a cylinder, which reduces the workload of the driver during transportation and avoids unnecessary accidents. However, it is inconvenient to store the hydraulic outrigger, which makes it easy for the hydraulic outrigger to be damaged during the movement of the semi-trailer, and it is inconvenient to move the top of the semi-trailer's compartment a certain distance. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic outrigger for a semi-trailer to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hydraulic outrigger for a semitrailer comprises an outrigger body, a storage mechanism is installed on one side of the lower end of the outrigger body, and a rotating member is rotatably connected to the other side of the upper end of the outrigger body, a fixed member is rotatably connected to one side of the rotating member, and a second motor is installed on the front side of the rotating member, a first motor is installed on the inner side of the fixed member, the storage mechanism comprises a storage motor and a guide bracket, a drum is fixedly connected to the output end of the storage motor, a guide roller is installed on the inner side of the guide bracket, and a traction rope is wound around the drum.

[0007] As a further solution of the utility model: the output end of the second motor is fixedly connected to the leg body, and the output end of the first motor is fixedly connected to the rotating member.

[0008] As a further solution of the utility model: the leg body includes a hydraulic cylinder body, the lower end of the inner side of the hydraulic cylinder body is slidably connected to a piston rod, the lower end of the piston rod is fixedly connected to a ball head, and the outer side of the ball head is rotatably connected to a support plate.

[0009] As a further solution of the utility model: an oil inlet pipe and an oil return pipe are respectively installed at the upper and lower ends of the front side of the hydraulic cylinder body, an electromagnetic valve is installed between the oil inlet pipe and the oil return pipe, and an oil inlet port and an oil return port are respectively opened at the upper and lower ends of one side of the electromagnetic valve.

[0010] As a further solution of the utility model: the lower end of one side of the hydraulic cylinder body is fixedly connected to a limiting ring, the traction rope passes through the upper end of the guide roller, and the lower end of the traction rope is fixedly connected to the limiting ring.

[0011] As a further solution of the utility model: an upper end of one side of the hydraulic cylinder body is fixedly connected with a shaft ear, the shaft ear is rotatably connected to the rotating member through a rotating shaft, and the output end of the second motor is fixedly connected to the rotating shaft.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model can store the outrigger body horizontally in the lower part of the compartment of the semi-trailer through the storage mechanism, thus preventing the outrigger body from being scratched during the driving of the semi-trailer and improving the safety of the hydraulic outrigger; the outrigger body is driven to rotate by the second motor, and the angle of the outrigger body can be adjusted in the left and right directions; the rotating part, the second motor and the outrigger body are driven to rotate together by the first motor, and the angle of the outrigger body can be adjusted in the front and rear directions; thereby, the compartment part of the semi-trailer can be lifted up and moved laterally for a short distance, so that the semi-trailer can turn, reverse and make a U-turn in a position with a restricted area. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a hydraulic outrigger for a semi-trailer;

[0015] Figure 2 It is a structural schematic diagram of a storage mechanism in a hydraulic outrigger for a semi-trailer;

[0016] Figure 3 It is a structural schematic diagram of an outrigger body in a hydraulic outrigger for a semi-trailer;

[0017] Figure 4 The invention is a plan view of a hydraulic outrigger for a semitrailer installed on the semitrailer.

[0018] In the figure: 1. outrigger body; 11. hydraulic cylinder body; 12. oil inlet pipe; 13. axle ear; 14. solenoid valve; 15. oil inlet; 16. oil return port; 17. limit ring; 18. ball head; 19. support plate; 110. piston rod; 111. oil return pipe; 2. storage mechanism; 21. storage motor; 22. reel; 23. traction rope; 24. guide roller; 25. guide bracket; 3. rotating part; 4. first motor; 5. fixing part; 6. second motor; 7. semi-trailer. DETAILED DESCRIPTION

[0019] See also Figures 1 to 4 In an embodiment of the utility model, a hydraulic outrigger for a semi-trailer includes an outrigger body 1, a storage mechanism 2 is installed on one side of the lower end of the outrigger body 1, and a rotating member 3 is rotatably connected to the other side of the upper end of the outrigger body 1, a fixed member 5 is rotatably connected to one side of the rotating member 3, and a second motor 6 is installed on the front side of the rotating member 3, a first motor 4 is installed on the inner side of the fixed member 5, and the output end of the second motor 6 is fixedly connected to the outrigger body 1, and the outrigger body 1 can be driven to rotate by the second motor 6, so that the angle of the outrigger body 1 can be adjusted in the left and right directions; the output end of the first motor 4 is fixedly connected to the rotating member 3, and the fixed member 5 is installed on the rear part of the compartment of the semi-trailer 7 by bolts, such as Figure 4 As shown, the first motor 4 can drive the rotating member 3, the second motor 6 and the leg body 1 to rotate together, so that the angle of the leg body 1 can be adjusted in the front and rear directions; when the leg body 1 and the car body of the semi-trailer 7 have a certain angle, the leg body 1 is in a tilted state; through the extension of the leg body 1, the car body of the semi-trailer 7 can be lifted up and moved laterally for a short distance, while the front part of the semi-trailer 7 remains stationary. At this time, the semi-trailer 7 can turn, reverse, and make a U-turn in a restricted area.

[0020] exist Figure 2 In the figure, the storage mechanism 2 includes a storage motor 21 and a guide bracket 25, the output end of the storage motor 21 is fixedly connected with a reel 22, the inner side of the guide bracket 25 is installed with a guide roller 24, and a traction rope 23 is wound around the reel 22; the upper ends of the storage motor 21 and the guide bracket 25 are fixed to the lower part of the compartment of the semi-trailer 7 by screws; the reel 22 is driven to rotate by the storage motor 21, and the reel 22 reels the traction rope 23, so that the outrigger body 1 can be horizontally stored in the lower part of the compartment of the semi-trailer 7, thereby preventing the outrigger body 1 from being scratched during the driving of the semi-trailer 7.

[0021] exist Figure 3In the embodiment, the outrigger body 1 includes a hydraulic cylinder body 11, the lower end of the inner side of the hydraulic cylinder body 11 is slidably connected with a piston rod 110, the lower end of the piston rod 110 is fixedly connected with a ball head 18, and the outer side of the ball head 18 is rotatably connected with a support plate 19. Since the support plate 19 can rotate on the outer side of the ball head 18, when the ground is uneven, the support plate 19 can also be stably supported on the ground; the upper and lower ends of the front side of the hydraulic cylinder body 11 are respectively equipped with an oil inlet pipe 12 and an oil return pipe 111, and an electromagnetic valve 14 is installed between the oil inlet pipe 12 and the oil return pipe 111. The upper and lower ends of one side of the electromagnetic valve 14 are respectively provided with an oil inlet port 15 and an oil return port 16, and the oil inlet port 15 and the oil return port 16 are connected to the hydraulic station in the car through a hose. When the hydraulic oil in the hydraulic station enters the oil inlet pipe 12 from the oil inlet port 15 at a certain pressure, and then enters the hydraulic cylinder body 11, the piston rod 110 is pushed downward, and the piston rod 110 extends. The support plate 19 can be supported on the ground if the guide roller 24 is long, and the support plate 19 can be supported on the ground; on the contrary, the hydraulic oil enters the return oil pipe 111 from the return oil port 16 with a certain pressure, and then enters the hydraulic cylinder body 11, pushing the piston rod 110 upward, the piston rod 110 retracts, and the support plate 19 can leave the ground; the lower end of one side of the hydraulic cylinder body 11 is fixedly connected to the limiting ring 17, the traction rope 23 passes through the upper end of the guide roller 24, and the lower end of the traction rope 23 is fixedly connected to the limiting ring 17, and the traction rope 23 is limited and supported by the guide roller 24. When the traction rope 23 is wound, the hydraulic cylinder body 11 can be towed by the limiting ring 17; the upper end of one side of the hydraulic cylinder body 11 is fixedly connected with the shaft ear 13, and the shaft ear 13 is rotatably connected to the rotating member 3 through the rotating shaft, and the output end of the second motor 6 is fixedly connected to the rotating shaft, so that the shaft ear 13 and the rotating member 3 can rotate with the rotating shaft as the center, thereby driving the hydraulic cylinder body 11 to rotate.

[0022] Working principle of the utility model: First, the fixing member 5, the storage motor 21 and the guide bracket 25 are all installed at the rear of the compartment of the semi-trailer 7, and the oil inlet 15 and the oil return port 16 are connected to the hydraulic station in the compartment through a hose;

[0023] When the hydraulic outrigger needs to be used, first, the storage motor 21 is turned on, and the storage motor 21 drives the drum 22 to rotate counterclockwise, so that the drum 22 unwinds the traction rope 23, and the hydraulic cylinder body 11 rotates under the action of gravity and remains parallel to the vertical direction;

[0024] Next, the hydraulic station in the carriage is started, and the hydraulic oil in the hydraulic station enters the oil inlet pipe 12 from the oil inlet port 15 at a certain pressure, and then enters the hydraulic cylinder body 11, pushing the piston rod 110 downward, the piston rod 110 extends, and the support plate 19 can be supported on the ground;

[0025] When the area where the semi-trailer 7 is located is limited and it is unable to turn, reverse or make a U-turn normally; first, the hydraulic oil in the hydraulic station enters the return oil pipe 111 from the return oil port 16 at a certain pressure, and then enters the hydraulic cylinder body 11, pushing the piston rod 110 upward, and the piston rod 110 retracts, so that the support plate 19 leaves the ground; then, the first motor 4 and the second motor 6 are started, and the outrigger body 1 is driven to rotate by the second motor 6 to adjust the angle of the outrigger body 1 in the left and right directions; then, the rotating member 3, the second motor 6 and the outrigger body 1 are driven to rotate together by the first motor 4 to adjust the angle of the outrigger body 1 in the front and rear directions; so that the upper end of the outrigger body 1 faces the direction in which the carriage needs to move; then, the hydraulic station is started, and the carriage part of the semi-trailer 7 is lifted up and moved laterally a short distance by the extension of the piston rod 110, while the front part of the semi-trailer 7 remains stationary. At this time, the semi-trailer 7 can turn, reverse or make a U-turn in a position where the area is limited.

[0026] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic outrigger for a semitrailer, comprising an outrigger body (1), characterized in that: A storage mechanism (2) is installed on one side of the lower end of the leg body (1), and a rotating member (3) is rotatably connected to the other side of the upper end of the leg body (1); a fixed member (5) is rotatably connected to one side of the rotating member (3), and a second motor (6) is installed on the front side of the rotating member (3); a first motor (4) is installed on the inner side of the fixed member (5); the storage mechanism (2) comprises a storage motor (21) and a guide bracket (25); a reel (22) is fixedly connected to the output end of the storage motor (21); a guide roller (24) is installed on the inner side of the guide bracket (25); and a traction rope (23) is wound around the reel (22).

2. The hydraulic outrigger for a semitrailer according to claim 1, characterized in that: The output end of the second motor (6) is fixedly connected to the leg body (1), and the output end of the first motor (4) is fixedly connected to the rotating member (3).

3. The hydraulic outrigger for a semitrailer according to claim 1, characterized in that: The leg body (1) comprises a hydraulic cylinder body (11), the lower end of the inner side of the hydraulic cylinder body (11) is slidably connected to a piston rod (110), the lower end of the piston rod (110) is fixedly connected to a ball head (18), and the outer side of the ball head (18) is rotatably connected to a support plate (19).

4. The hydraulic outrigger for a semitrailer according to claim 3, characterized in that: An oil inlet pipe (12) and an oil return pipe (111) are respectively installed at the upper and lower ends of the front side of the hydraulic cylinder body (11), an electromagnetic valve (14) is installed between the oil inlet pipe (12) and the oil return pipe (111), and an oil inlet port (15) and an oil return port (16) are respectively opened at the upper and lower ends of one side of the electromagnetic valve (14).

5. The hydraulic outrigger for a semitrailer according to claim 3, characterized in that: The lower end of one side of the hydraulic cylinder body (11) is fixedly connected to a limiting ring (17), the traction rope (23) passes through the upper end of the guide roller (24), and the lower end of the traction rope (23) is fixedly connected to the limiting ring (17).

6. The hydraulic outrigger for a semitrailer according to claim 3, characterized in that: An upper end of one side of the hydraulic cylinder body (11) is fixedly connected to a shaft ear (13), the shaft ear (13) is rotatably connected to the rotating member (3) via a rotating shaft, and the output end of the second motor (6) is fixedly connected to the rotating shaft.

Images