Limiting device for low flatbed semitrailer

Abstract

The utility model relates to the field of low flatbed semitrailers, in particular to a limiting device for a low flatbed semitrailer, which comprises a vehicle plate body, a fixing hole is arranged at one end of the vehicle plate body, a rectangular cavity is arranged inside the vehicle plate body, and a first rectangular opening is arranged on the vehicle plate body. When the semi-trailer is used, the second threaded rod can be driven by the second driving motor to rotate, the second threaded rod drives the pressing plate to move up and down to limit cargoes, the cargoes are prevented from bumping up and down in the running process of the semi-trailer, and meanwhile the movable push rod extends to drive the clamping plates to get close to clamp the two sides of the cargoes. According to the semi-trailer, the goods are prevented from moving towards the two sides in the driving process of the semi-trailer, when the goods need to be limited, the second limiting plate is turned to a proper angle, the goods are limited front and back together with the first limiting plate, the goods of different heights and widths are conveniently limited, and the risk that the goods are loosened or even fall is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of low - flat semi - trailers, in particular to a limiting device for low - flat semi - trailers. Background Art

[0002] Low - flat semi - trailers are usually used to transport heavy vehicles (such as tractors, buses, special vehicles, etc.), rail vehicles, mining machinery, forestry machinery, construction machinery (such as excavators, bulldozers, loaders, pavers, cranes, etc.) and other heavy - load goods. The lower its center of gravity, the better its stability and safety, and the stronger its ability to transport ultra - high goods and pass through overhead obstacles.

[0003] Although the existing low - flat semi - trailers can conveniently transport goods, they can often only limit the bottom of the goods, and it is not convenient to limit goods of different heights and widths. As a result, when passing through some bumpy roads, during the up - and - down bumping of the semi - trailer, the goods are likely to become loose or even fall. Therefore, a limiting device for low - flat semi - trailers is proposed. Summary of the Invention

[0004] The purpose of the utility model is to solve the disadvantages that the existing low - flat semi - trailers can only limit the bottom of the goods, it is not convenient to limit goods of different heights and widths, and during the up - and - down bumping of the semi - trailer, the goods are likely to become loose or even fall, and a limiting device for low - flat semi - trailers is proposed.

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

[0006] A limiting device for a low - flat semi - trailer, including a vehicle board body. One end of the vehicle board body is provided with a fixing hole, a rectangular cavity is arranged inside the vehicle board body, and a first rectangular opening is arranged on the vehicle board body.

[0007] Preferably, a receiving groove is arranged on one side of the rectangular cavity. A first driving motor is installed in the receiving groove. The output end of the first driving motor is connected with a first threaded rod. The first threaded rod is in threaded connection with a moving plate, and the moving plate is slidably connected to the rectangular cavity.

[0008] Preferably, a rectangular plate is fixedly connected to the top of the moving plate. A first limiting plate is fixedly connected to one side of the rectangular plate. A first rectangular groove is arranged on one side of the rectangular plate, and a second driving motor is installed on the top of the rectangular plate.

[0009] Preferably, the output end of the second driving motor is connected with a second threaded rod. The second threaded rod is in threaded connection with a pressing plate, and the pressing plate is located in the first rectangular groove.

[0010] Preferably, one side of the rectangular plate is fixedly connected with a mounting plate, an electric push rod is mounted on the mounting plate, and a clamping plate is arranged at one end of the electric push rod.

[0011] Preferably, a second rectangular opening is formed in the vehicle body plate, a third driving motor is installed in the second rectangular opening, an output end of the third driving motor is connected with a third threaded rod, and the third threaded rod is in threaded connection with a moving block.

[0012] Preferably, a second rectangular groove is formed on one side of the second rectangular opening, a sliding rod is fixedly connected in the second rectangular groove, the sliding rod is slidably connected with a second limiting plate, connecting rods are fixedly connected to both sides of the second limiting plate, and the connecting rods are fixedly connected to both sides of the moving block.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. When the device is in use, the second driving motor can be driven to rotate the second threaded rod, and the second threaded rod drives the pressing plate to move up and down to limit the goods, so as to avoid the goods from jolting up and down during the driving of the semi-trailer. At the same time, the moving push rod extends to drive the clamping plate to approach, clamping both sides of the goods to avoid the goods from shifting to both sides during the driving of the semi-trailer. The first limiting plate and the second limiting plate together limit the goods front and back, which is convenient for limiting goods of different heights and widths and avoiding the risk of the goods loosening or even falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an overall three-dimensional structural schematic diagram of a limiting device for a low-bed semi-trailer proposed by the utility model;

[0016] Figure 2 is a sectional three-dimensional structural schematic diagram of a limiting device for a low-bed semi-trailer proposed by the utility model;

[0017] Figure 3 is a three-dimensional structural schematic diagram of the connection relationship between a first driving motor and a first threaded rod of a limiting device for a low-bed semi-trailer proposed by the utility model;

[0018] Figure 4 is a three-dimensional structural schematic diagram of the connection relationship between a third driving motor and a third threaded rod of a limiting device for a low-bed semi-trailer proposed by the utility model.

[0019] In the figure: 1. vehicle deck body; 2. fixing hole; 3. rectangular cavity; 4. first rectangular opening; 5. receiving groove; 6. first driving motor; 7. first threaded rod; 8. moving plate; 9. rectangular plate; 10. first limiting plate; 11. second driving motor; 12. second threaded rod; 13. pressing plate; 14. mounting plate; 15. electric push rod; 16. clamping plate; 17. second rectangular opening; 18. third driving motor; 19. third threaded rod; 20. moving block; 21. second rectangular groove; 22. sliding rod; 23. second limiting plate; 24. connecting rod. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Referring to Figures 1 - 4 , a limiting device for a low-bed semi-trailer, including a vehicle deck body 1, a fixing hole 2 is opened at one end of the vehicle deck body 1, a rectangular cavity 3 is opened inside the vehicle deck body 1, and a first rectangular opening 4 is opened on the vehicle deck body 1.

[0022] Among them, the vehicle deck body 1 is fixed to the semi-trailer through the fixing hole 2.

[0023] Further, a receiving groove 5 is opened on one side of the rectangular cavity 3, a first driving motor 6 is installed in the receiving groove 5, the output end of the first driving motor 6 is connected to a first threaded rod 7, the first threaded rod 7 is threadedly connected to a moving plate 8, and the moving plate 8 is slidably connected to the rectangular cavity 3.

[0024] Among them, an external device provides power for the first driving motor 6 and controls its opening and closing. The first driving motor 6 drives the first threaded rod 7 to rotate, and the first threaded rod 7 drives the moving plate 8 to move, which can be moved according to the size of the goods, facilitating the limiting of the goods.

[0025] Further, a rectangular plate 9 is fixedly connected to the top of the moving plate 8, a first limiting plate 10 is fixedly connected to one side of the rectangular plate 9, a first rectangular groove is opened on one side of the rectangular plate 9, and a second driving motor 11 is installed on the top of the rectangular plate 9.

[0026] Among them, the first limiting plate 10 and the second limiting plate 23 limit the front and rear positions of the goods to prevent the goods from moving forward and backward during the driving of the semi-trailer. The second threaded rod 12 rotates in the first rectangular groove, and the pressing plate 13 moves up and down along the rectangular plate 9.

[0027] Further, the output end of the second driving motor 11 is connected to a second threaded rod 12, and the second threaded rod 12 is threadedly connected to a pressing plate 13. The pressing plate 13 is located in the first rectangular groove.

[0028] Among them, an external device provides power for the second driving motor 11 and controls its on and off. The second driving motor 11 drives the second threaded rod 12 to rotate, and the second threaded rod 12 drives the pressing plate 13 to move up and down to limit the goods, preventing the goods from jolting up and down during the driving of the semi-trailer.

[0029] Further, one side of the rectangular plate 9 is fixedly connected to a mounting plate 14, and an electric push rod 15 is installed on the mounting plate 14. One end of the electric push rod 15 is provided with a clamping plate 16.

[0030] Among them, when the electric push rod 15 extends, it drives the clamping plate 16 to approach, clamping both sides of the goods to prevent the goods from displacing to both sides during the driving of the semi-trailer.

[0031] Further, a second rectangular opening 17 is formed in the vehicle body 1, and a third driving motor 18 is installed in the second rectangular opening 17. The output end of the third driving motor 18 is connected to a third threaded rod 19, and the third threaded rod 19 is threadedly connected to a moving block 20.

[0032] Among them, an external device provides power for the third driving motor 18 and controls its on and off. The third driving motor 18 drives the third threaded rod 19 to rotate, and the third threaded rod 19 drives the moving block 20 to move back and forth in the second rectangular opening 17.

[0033] At the same time, the specific model specifications of the first driving motor 6, the second driving motor 11, and the third driving motor 18 need to be selected according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated here.

[0034] Further, a second rectangular groove 21 is formed on one side of the second rectangular opening 17. A sliding rod 22 is fixedly connected in the second rectangular groove 21. The sliding rod 22 is slidably connected to a second limiting plate 23. Both sides of the second limiting plate 23 are fixedly connected to connecting rods 24, and the connecting rods 24 are fixedly connected to both sides of the moving block 20.

[0035] Among them, the moving block 20 drives the connecting rod 24 to move, and the connecting rod 24 drives the second limiting plate 23 to flip up and down along the sliding rod 22. When the goods need to be limited, it flips to an appropriate angle to limit the goods front and back together with the first limiting plate 10. When the limiting is not required, it can be retracted into the second rectangular opening 17 without interfering with the loading and unloading of the goods.

[0036] The working principle of the present utility model:

[0037] The first driving motor 6 drives the first threaded rod 7 to rotate, and the first threaded rod 7 drives the moving plate 8 to move, which can be moved according to the size of the goods, facilitating the limiting of the goods. The second driving motor 11 drives the second threaded rod 12 to rotate, and the second threaded rod 12 drives the pressing plate 13 to move up and down to limit the goods, preventing the goods from jolting up and down during the driving of the semi-trailer. At the same time, the moving push rod extends to drive the clamping plates 16 to approach each other, clamping both sides of the goods to prevent the goods from shifting to both sides during the driving of the semi-trailer;

[0038] Finally, the third driving motor 18 drives the third threaded rod 19 to rotate, and the third threaded rod 19 drives the moving block 20 to move within the second rectangular opening 17. The moving block 20 drives the connecting rod 24 to move, and the connecting rod 24 drives the second limiting plate 23 to flip up and down along the sliding rod 22. When it is necessary to limit the goods, it flips to an appropriate angle and, together with the first limiting plate 10, limits the goods front and back, facilitating the limiting of goods with different heights and widths and avoiding the risk of the goods loosening or even falling.

[0039] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A positioning device for a low-bed semi-trailer, comprising a vehicle plate body (1), characterized in that: A fixing hole (2) is provided at one end of the vehicle plate body (1), a rectangular cavity (3) is provided inside the vehicle plate body (1), a first rectangular opening (4) is provided on the vehicle plate body (1), a receiving groove (5) is provided on one side of the rectangular cavity (3), a first driving motor (6) is installed in the receiving groove (5), an output end of the first driving motor (6) is connected to a first threaded rod (7), the first threaded rod (7) is threadedly connected to a moving plate (8), and the moving plate (8) is slidably connected to the rectangular cavity (3); A rectangular plate (9) is fixedly connected to the top of the movable plate (8), a first limit plate (10) is fixedly connected to one side of the rectangular plate (9), a first rectangular groove is formed on one side of the rectangular plate (9), and a second drive motor (11) is installed on the top of the rectangular plate (9); The output end of the second drive motor (11) is connected to a second threaded rod (12), the second threaded rod (12) is threadedly connected to a pressing plate (13), and the pressing plate (13) is located in the first rectangular groove; A mounting plate (14) is fixedly connected to one side of the rectangular plate (9), an electric push rod (15) is mounted on the mounting plate (14), and a clamping plate (16) is provided at one end of the electric push rod (15); The vehicle plate body (1) is provided with a second rectangular opening (17), a third driving motor (18) is installed in the second rectangular opening (17), an output end of the third driving motor (18) is connected to a third threaded rod (19), and the third threaded rod (19) is threadedly connected to a moving block (20); A second rectangular groove (21) is provided on one side of the second rectangular opening (17), a sliding rod (22) is fixedly connected in the second rectangular groove (21), a second limit plate (23) is slidably connected to the sliding rod (22), connecting rods (24) are fixedly connected on both sides of the second limit plate (23), and the connecting rods (24) are fixedly connected to both sides of the moving block (20).

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