Low flatbed semitrailer convenient to mount and fix

Abstract

The utility model provides a low flatbed semitrailer convenient to install and fix, which belongs to the technical field of semitrailers, and comprises a semitrailer body, the semitrailer body is divided into a loading part and a hooking part, a base and an alignment assembly are arranged below the hooking part, and the alignment assembly is connected with the loading part. The alignment assembly comprises a first fixing plate and a second fixing plate which are symmetrically and fixedly connected to the upper surface of the base, the side wall of the first fixing plate is rotationally connected with a threaded rod through a bearing, and the threaded rod is rotationally connected to the side wall of the second fixing plate in a penetrating mode through a bearing. According to the utility model, the orientation position of the low flatbed semitrailer is finely adjusted by arranging the alignment assembly, so that the tedious control of a tractor by a worker can be avoided, the installation efficiency is higher, and meanwhile, the installation and hooking of the tractor are more convenient by arranging the supporting assembly and matching with the alignment assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailers, in particular to a low-bed semi-trailer which is easy to install and fix. Background Art

[0002] Low-bed semi-trailers are mainly used to transport large objects that cannot be disassembled. The front of this type of semi-trailer is usually connected to a tractor, and the rear directly carries the goods without a trailer. Due to its low-bed design, low-bed semi-trailers have significant advantages in transporting large equipment or overweight goods that cannot be disassembled. However, before using a low-bed semi-trailer, it needs to be connected to the tractor at the head. In order to improve efficiency, a low-bed semi-trailer that is easy to install and fix is ​​required for use.

[0003] After searching, the patent document with publication number CN219382642U discloses a low-bed semi-trailer that is easy to install and fix, including a low-bed semi-trailer body, a car body, a plurality of assembly positioning seats and a plurality of positioning components. The car body is installed on the low-bed semi-trailer body, and a plurality of embedded grooves are opened on the low-bed semi-trailer body. The utility model can simplify the installation steps of the car body.

[0004] The above prior art often has the following problems when used:

[0005] The existing low-bed semi-trailers take into account the convenient installation of the carriage, but in actual use, the low-bed semi-trailers do not have high requirements for the carriage. When the traditional low-bed semi-trailer is coupled to the tractor, the saddle of the tractor needs to be connected to the towing pin of the low-bed semi-trailer. This process requires the driver to control the tractor head to accurately align with the low-bed semi-trailer for coupling. This process is time-consuming and tests the driver's level. It is not convenient enough. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a low-bed semi-trailer which is easy to install and fix.

[0007] The embodiment of the utility model provides a low-bed semi-trailer that is easy to install and fix, comprising:

[0008] A semitrailer body, wherein the semitrailer body is divided into a loading part and a hooking part, and a base is provided below the hooking part;

[0009] The alignment component comprises a No. 1 fixing plate and a No. 2 fixing plate symmetrically fixedly connected to the upper surface of the base, the side wall of the No. 1 fixing plate is rotatably connected with a threaded rod through a bearing, the threaded rod is rotatably connected to the side wall of the No. 2 fixing plate through a bearing, the surface of the base is provided with a No. 1 slide groove, the threaded rod is threadedly connected with an adjusting nut, the bottom surface of the adjusting nut is fixedly connected with a load-bearing slider, the load-bearing slider is slidably connected in the No. 1 slide groove, the upper surface of the adjusting nut is fixedly connected with a No. 1 bearing plate, the surface of the No. 1 bearing plate is symmetrically fixedly connected with two No. 3 fixing plates, a guide rod is fixedly connected between the two No. 3 fixing plates, the guide rod is slidably sleeved with a guide slider outside, and the upper surface of the guide slider is rotatably provided with a No. 2 bearing plate;

[0010] A supporting assembly is arranged between the second bearing plate and the hanging part.

[0011] Furthermore, the support assembly includes hydraulic cylinders symmetrically fixed on the surface of the second bearing plate, the output ends of the two hydraulic cylinders are fixedly connected to bearing seats, the bottom surface of the hanging part is symmetrically fixedly connected to two support blocks, and the two bearing seats are respectively matched with the two support blocks.

[0012] Furthermore, the surface of the base is provided with two symmetrical No. 2 slide grooves, the bottom surface of the No. 1 bearing plate is symmetrically and fixedly connected with two load-bearing columns, and the bottom ends of the two load-bearing columns are respectively slidably connected in the two No. 2 slide grooves.

[0013] Furthermore, one end of the threaded rod away from the first fixing plate is fixedly connected with a rotating handle.

[0014] Furthermore, the bottom surface of the guide sliding block is in contact with the upper surface of the first bearing plate.

[0015] Furthermore, the side wall of the load-bearing sliding block is in contact with the inner wall of the No. 1 sliding groove.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the utility model, an alignment component is provided, and when the tractor needs to be coupled with the low-bed semi-trailer, the orientation position of the low-bed semi-trailer can be fine-tuned through the operation of the alignment component, so that the staff can avoid tedious operation of the tractor, increase the fault tolerance of the staff, and have higher installation efficiency. At the same time, the low-bed semi-trailer can be supported by the support component, and the coupling of the tractor is more convenient with the alignment component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a low-bed semi-trailer that is easy to install and fix in an embodiment of the utility model.

[0019] Figure 2 It is a three-dimensional structural schematic diagram from another perspective of a low-bed semi-trailer that is easy to install and fix in an embodiment of the utility model.

[0020] Figure 3 It is a three-dimensional structural schematic diagram from another perspective of a low-bed semi-trailer that is easy to install and fix in an embodiment of the utility model.

[0021] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0022] In the above drawings: 1 semi-trailer body, 2 loading part, 3 hooking part, 4 base, 5 No. 1 fixing plate, 6 No. 2 fixing plate, 7 threaded rod, 8 No. 1 slide, 9 adjusting nut, 10 load-bearing slider, 11 No. 1 load-bearing plate, 12 No. 3 fixing plate, 13 guide rod, 14 guide slider, 15 No. 2 load-bearing plate, 16 hydraulic cylinder, 17 load-bearing seat, 18 support block, 19 No. 2 slide, 20 load-bearing column. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1-Figure 4 As shown, the embodiment of the utility model provides a low-bed semi-trailer that is easy to install and fix, including:

[0025] A semitrailer body 1 is divided into a loading part 2 and a hanging part 3. A base 4 is provided below the hanging part 3, and an alignment component is provided. The alignment component includes a No. 1 fixing plate 5 and a No. 2 fixing plate 6 which are symmetrically fixedly connected to the upper surface of the base 4. The side wall of the No. 1 fixing plate 5 is rotatably connected with a threaded rod 7 through a bearing. The threaded rod 7 is rotatably connected to the side wall of the No. 2 fixing plate 6 through a bearing. A No. 1 slide groove 8 is provided on the surface of the base 4. An adjusting nut 9 is threadedly connected to the threaded rod 7. A load-bearing slider 10 is fixedly connected to the bottom surface of the adjusting nut 9. The load-bearing slider 10 is slidably connected in the No. 1 slide groove 8. A No. 1 bearing plate 11 is fixedly connected to the upper surface of the adjusting nut 9. Two No. 3 fixing plates 12 are symmetrically fixedly connected to the surface of the No. 1 bearing plate 11. A guide rod 13 is fixedly connected between the two No. 3 fixing plates 12. The guide The rod 13 is slidably sleeved with a guide slider 14 on the outer surface, and a No. 2 bearing plate 15 is rotatably provided on the upper surface of the guide slider 14. Two symmetrical No. 2 slide grooves 19 are provided on the surface of the base 4. Two load-bearing columns 20 are symmetrically fixedly connected to the bottom surface of the No. 1 bearing plate 11. The bottom ends of the two load-bearing columns 20 are respectively slidably connected in the two No. 2 slide grooves 19 to share the load of the No. 1 bearing plate 11, and also provide guarantee for the stable movement of the No. 1 bearing plate 11. The end of the threaded rod 7 away from the No. 1 fixed plate 5 is fixedly connected with a rotating handle for the convenience of operation by the staff. The bottom surface of the guide slider 14 is in contact with the upper surface of the No. 1 bearing plate 11, and also shares the load and improves stability. The side wall of the load-bearing slider 10 is in contact with the inner wall of the No. 1 slide groove 8, in order to give the adjusting nut 9 a limiting effect, and also share the load.

[0026] The support assembly is arranged between the No. 2 bearing plate 15 and the hanging part 3. The support assembly includes a hydraulic cylinder 16 symmetrically fixed on the surface of the No. 2 bearing plate 15. The output ends of the two hydraulic cylinders 16 are fixedly connected with a bearing seat 17. The bottom surface of the hanging part 3 is symmetrically fixedly connected with two support blocks 18. The two bearing seats 17 are respectively matched with the two support blocks 18.

[0027] The detailed working process of the utility model is as follows:

[0028] When the low-bed semi-trailer needs to be installed with the tractor, the tractor head is first roughly aligned with the position of the semi-trailer body 1, and the saddle part is moved toward the hooking part 3, that is, the tractor head is reversed and moved toward the semi-trailer body 1. At this time, the two hydraulic cylinders 16 are opened at the same time, so that the output end of the hydraulic cylinder 16 drives the bearing seat 17 to move upward, and then drives the hooking part 3 of the semi-trailer body 1 to be higher by supporting the support block 18;

[0029] When the tractor head backs up to a position where it can be determined whether the saddle and the traction pin are aligned, if it can be installed by continuing to back up, no additional operation is required. If it cannot be installed, it is necessary to rotate the threaded rod 7 to fine-tune the direction of the semi-trailer body 1. Because the wheels of the semi-trailer body 1 are in contact with the ground, it cannot be achieved simply by translation. By rotating the threaded rod 7, the adjusting nut 9 will not rotate with the threaded rod 7 under the limitation of the load-bearing slider 10 and the No. 1 slide groove 8, but will move left and right along the threaded rod 7, thereby driving the No. 1 bearing plate 11 to move left and right. When the No. 1 bearing plate 11 moves left and right, the No. 2 bearing plate 15 and the guide slider 14 will move under the influence of the movement of the No. 1 bearing plate 11, and the guide slider 14 will Sliding occurs on the guide rod 13, and at the same time, the angle between the No. 2 bearing plate 15 and the guide slider 14 will also change. The No. 2 bearing plate 15 will drive the semi-trailer body 1 to rotate at a certain angle through the supporting assembly, and convert the movement of the No. 1 bearing plate 11 and the No. 2 bearing plate 15 into the rotation of the semi-trailer body 1, and rotate at a small angle around the grounded wheels to complete a small change in the direction of the semi-trailer body 1, and cooperate with the direction of the tractor to achieve convenient installation, which can avoid the staff from performing tedious operation of the tractor, increase the staff's fault tolerance rate, and also have higher installation efficiency. After the installation is completed, the bearing seat 17 is separated from the support block 18, and then the alignment assembly and the support assembly can be collected.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A low-bed semi-trailer that is easy to install and fix, characterized in that: include: A semitrailer body (1), the semitrailer body (1) being divided into a load-carrying part (2) and a hooking part (3), a base (4) being provided below the hooking part (3); An alignment component, the alignment component comprises a No. 1 fixing plate (5) and a No. 2 fixing plate (6) symmetrically fixedly connected to the upper surface of a base (4), the side wall of the No. 1 fixing plate (5) is rotatably connected to a threaded rod (7) through a bearing, the threaded rod (7) is rotatably connected to the side wall of the No. 2 fixing plate (6) through a bearing, a No. 1 slide groove (8) is provided on the surface of the base (4), an adjusting nut (9) is threadedly connected to the threaded rod (7), and a load-bearing slide is fixedly connected to the bottom surface of the adjusting nut (9). The load-bearing slider (10) is slidably connected in the No. 1 slide groove (8), the upper surface of the adjusting nut (9) is fixedly connected with the No. 1 bearing plate (11), the surface of the No. 1 bearing plate (11) is symmetrically fixedly connected with two No. 3 fixing plates (12), a guide rod (13) is fixedly connected between the two No. 3 fixing plates (12), the guide rod (13) is slidably sleeved with a guide slider (14) outside, and the upper surface of the guide slider (14) is rotatably provided with a No. 2 bearing plate (15); A support assembly is arranged between the second bearing plate (15) and the hanging part (3).

2. A low-bed semi-trailer that is easy to install and fix according to claim 1, characterized in that: in: The support assembly comprises a hydraulic cylinder (16) symmetrically fixed on the surface of the second bearing plate (15), the output ends of the two hydraulic cylinders (16) are fixedly connected to a bearing seat (17), the bottom surface of the hanging part (3) is symmetrically fixedly connected to two supporting blocks (18), and the two bearing seats (17) are respectively matched with the two supporting blocks (18).

3. A low-bed semi-trailer that is easy to install and fix according to claim 1, characterized in that: in: The surface of the base (4) is provided with two symmetrical No. 2 slide grooves (19), and the bottom surface of the No. 1 bearing plate (11) is symmetrically fixedly connected with two load-bearing columns (20), and the bottom ends of the two load-bearing columns (20) are respectively slidably connected in the two No. 2 slide grooves (19).

4. A low-bed semi-trailer that is easy to install and fix according to claim 1, characterized in that: in: One end of the threaded rod (7) away from the first fixing plate (5) is fixedly connected to a rotating handle.

5. The low-bed semi-trailer that is easy to install and fix according to claim 1 is characterized in that: in: The bottom surface of the guide sliding block (14) is in contact with the upper surface of the first bearing plate (11).

6. A low-bed semi-trailer that is easy to install and fix according to claim 1, characterized in that: in: The side wall of the load-bearing sliding block (10) fits with the inner side wall of the No. 1 sliding groove (8).

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