Hydraulic lifting single-shaft trailer

Abstract

The utility model discloses a hydraulic lifting single-shaft trailer which comprises a trailer body, a trailer beam is fixedly installed at the front end of the trailer body, a connecting beam is fixedly installed at the front end of the trailer beam, and a control box is fixedly installed on the front side of the upper end of the trailer body. A movable control power source and a hydraulic oil cylinder are fixedly installed in the control box, and a fixing frame used for fixing a motorcycle is fixedly installed on the front side of the upper end of the trailer body. A fixing disc is fixedly installed at the front side end of the trailer beam, a rotating disc is rotationally connected to the middle of the outer side of the fixing disc through a rotating shaft, a first hydraulic telescopic rod is fixedly installed on the outer side of the rotating disc, and a supporting roller is rotationally connected to the telescopic part of the lower bottom end of the first hydraulic telescopic rod through a pin shaft. First pin holes are formed in the four corners of the outer side of the fixing disc in a penetrating mode. According to the utility model, the motorcycle can be conveniently transported, loaded and unloaded while the trailer main body is adjusted to lift up and down.

Description

Technical Field

[0001] The utility model relates to the technical field of trailers, in particular to a hydraulic lifting single-axle trailer. Background Art

[0002] A trailer is a device used to transport goods or vehicles, usually consisting of a tractor and a trailer. The tractor is usually the power part, responsible for providing traction, while the trailer is the towed part, used to load goods or other vehicles. Trailers can be divided into many types according to their uses and structural characteristics, such as flatbed trailers, container trailers, low-bed trailers, full trailers, semi-trailers, etc. These different types of trailers have different applications in different occasions.

[0003] With the rapid development of modern logistics industry, trailers, as important means of transportation, have increasingly prominent demands for diversified performance and functions. In the process of using trailers to transport motorcycles, it is usually necessary to use a forklift or a crane to lift or hoist the motorcycle to the top of the trailer for fixed transportation. However, when using a forklift or a crane to lift or hoist the motorcycle to the top of the trailer for fixed transportation, the operation process is relatively cumbersome and will increase the transportation cost of the motorcycle. Utility Model Content

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

[0005] To achieve the above object, the utility model provides the following technical solutions: comprising a trailer body, a trailer beam is fixedly installed at the front end of the trailer body, a connecting beam is fixedly installed at the front end of the trailer beam, a control box is fixedly installed at the front end of the upper end of the trailer body, a mobile control power supply and a hydraulic cylinder are fixedly installed inside the control box, and a fixing frame for fixing a motorcycle is fixedly installed at the front end of the upper end of the trailer body;

[0006] A fixed plate is fixedly installed at the front end of the trailer beam, and a rotating plate is rotatably connected to the middle part of the outer side of the fixed plate through a rotating shaft, and a first hydraulic telescopic rod is fixedly installed on the outer side of the rotating plate, and the telescopic part at the lower end of the first hydraulic telescopic rod is rotatably connected to a supporting roller through a pin shaft, and first pin holes are penetrated through the four corners of the outer side of the fixed plate, and a second pin hole is penetrated through the side end of the rotating plate, and a positioning pin is movably connected to the inner wall of the second pin hole;

[0007] The front ends of the trailer body are rotatably connected to support arms via pins, the rear sides of the lower ends of the support arms are rotatably connected to a buffer assembly via pins, the upper ends of the support arms are rotatably connected to a second hydraulic telescopic rod via a pin, the rear telescopic portion of the rear end of the second hydraulic telescopic rod is rotatably connected to a swing arm via a pin, and the rear end of the swing arm is rotatably connected to a single-axle wheel via a pin;

[0008] The rear end of the trailer body is rotatably connected with an auxiliary tail plate through a pin shaft, and a third pin hole is penetrated through the rear end of the trailer body and the side of the lower end of the auxiliary tail plate, and a connecting pin is movably connected to the inner wall of the third pin hole.

[0009] Preferably, a connecting hole is provided at the front end of the connecting beam.

[0010] Preferably, a handrail is fixedly mounted on the top of the first hydraulic telescopic rod, and the bottom of the supporting roller is supported on the ground.

[0011] Preferably, there are four first pin holes, which are symmetrically distributed at the four corners of the outer side of the fixing plate, and the inner side of the positioning pin is movably connected to the inner wall of the first pin hole.

[0012] Preferably, there are two support arms, which are symmetrically distributed on both sides of the front end of the trailer body, and the rear end of the buffer assembly is rotatably connected to the outer side of the front end of the trailer body through a pin shaft.

[0013] Preferably, the buffer assembly includes a fixed column, a fixed tube, a front fixed ring, a rear fixed ring and a buffer spring, the rear end of the fixed column is movably connected to the inner wall of the front end of the fixed tube, the front fixed ring is fixedly installed on the outer curved surface of the front end of the fixed column, the rear fixed ring is fixedly installed on the outer curved surface of the rear end of the fixed tube, and the front and rear ends of the buffer spring are fixedly installed on the rear side of the front fixed ring and the front side of the rear fixed ring respectively.

[0014] Preferably, the lower side of the swing arm is rotatably connected to the outer side of the middle part of the front end of the trailer body through a pin shaft, the bottom of the single-axle wheel is supported on the ground, and a protective cover is fixedly installed on the outer side of the front end of the trailer body, and the protective cover surrounds the second hydraulic telescopic rod and the buffer assembly inside.

[0015] Preferably, the upper end of the auxiliary tail plate is inclined, and both sides of the connecting pin are penetrated by limited iron wires that are fitted and movably connected.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. When the first hydraulic telescopic rod and the second hydraulic telescopic rod are opened by synchronous control, the trailer body can be adjusted up and down. When the trailer body descends, the limit of the connecting pin by the limit wire is released. When the limit of the connecting pin by the limit wire is released, the connecting pin is pulled outward. When the connecting pin is pulled outward, the auxiliary tail plate is pushed to swing downward. When the auxiliary tail plate swings downward, the bottom of the auxiliary tail plate will fit the ground. When the bottom of the auxiliary tail plate fits the ground, the motorcycle to be transported can be pushed along the upper end of the auxiliary tail plate. The motorcycle can be pushed to the upper end of the trailer body. When the motorcycle is pushed to the upper end of the trailer body, the motorcycle can be fixed by the fixing frame, thereby realizing the up and down lifting and adjusting of the trailer body, and facilitating the transportation and loading and unloading of the motorcycle.

[0018] When the second hydraulic telescopic rod is rotated to coincide with the first pin hole, the first hydraulic telescopic rod can be retracted and the support roller can be retracted by retracting the first hydraulic telescopic rod and the support roller can be retracted and retracted by retracting the first hydraulic telescopic rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a hydraulic lifting single-axle trailer of the utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of a hydraulic lifting single-axle trailer of the utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the partial structure of a hydraulic lifting single-axle trailer of the utility model. Figure 1 ;

[0022] Figure 4 This is a schematic diagram of the partial structure of a hydraulic lifting single-axle trailer of the utility model. Figure 2 ;

[0023] Figure 5 This is a schematic diagram of the partial structure of a hydraulic lifting single-axle trailer of the utility model. Figure 3.

[0024] In the figure: 1. trailer body; 2. trailer beam; 3. connecting beam; 4. control box; 5. mobile control power supply; 6. hydraulic cylinder; 7. fixed plate; 8. rotating plate; 9. first hydraulic telescopic rod; 10. supporting roller; 11. first pin hole; 12. second pin hole; 13. positioning pin; 14. supporting arm; 15. buffer assembly; 1501. fixing column; 1502. fixing pipe; 1503. front fixing ring; 1504. rear fixing ring; 1505. buffer spring; 16. second hydraulic telescopic rod; 17. swing arm; 18. single-axle wheel; 19. auxiliary tail plate; 20. third pin hole; 21. connecting pin; 22. limiting wire; 23. protective cover; 24. fixing frame. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5 The utility model provides a technical solution for a hydraulic lifting single-axle trailer: it includes a trailer body 1, a trailer beam 2 is fixedly installed at the front end of the trailer body 1, a connecting beam 3 is fixedly installed at the front end of the trailer beam 2, and a connecting hole is opened at the front end of the connecting beam 3, so that the connecting beam 3 is connected to the rear of an external tractor through the connecting hole to achieve the function of a trailer, a control box 4 is fixedly installed at the front side of the upper end of the trailer body 1, and a mobile control power supply 5 and a hydraulic cylinder 6 are fixedly installed inside the control box 4, and a fixing frame 24 for fixing a motorcycle is fixedly installed at the front side of the upper end of the trailer body 1;

[0027] A fixed plate 7 is fixedly installed at the front side end of the trailer beam 2, and a rotating plate 8 is rotatably connected to the middle part of the outer side of the fixed plate 7 through a rotating shaft. A first hydraulic telescopic rod 9 is fixedly installed on the outer side of the rotating plate 8, and a handrail is fixedly installed on the top of the first hydraulic telescopic rod 9. The telescopic part at the lower end of the first hydraulic telescopic rod 9 is rotatably connected to a supporting roller 10 through a pin shaft, and the bottom of the supporting roller 10 is supported on the ground. First pin holes 11 are opened through the four corners of the outer side of the fixed plate 7, and there are four first pin holes 11, which are symmetrically distributed at the four corners of the outer side of the fixed plate 7. A second pin hole 12 is opened through the side end of the rotating plate 8, and a positioning pin 13 is movably connected to the inner wall of the second pin hole 12, and the inner side of the positioning pin 13 is movably connected to the inner wall of the first pin hole 11, so that the rotating plate 8 and the first hydraulic telescopic rod 9 are limited and fixed by the positioning pin 13 in cooperation with the second pin hole 12 and the first pin hole 11;

[0028] The front ends of the trailer body 1 are rotatably connected with support arms 14 by pins, and there are two support arms 14, which are symmetrically distributed on both sides of the front end of the trailer body 1. The rear side of the lower end of the support arm 14 is rotatably connected with a buffer assembly 15 by a pin, and the rear end of the buffer assembly 15 is rotatably connected to the outer side of the front end of the trailer body 1 by a pin. The buffer assembly 15 includes a fixed column 1501, a fixed tube 1502, a front fixed ring 1503, a rear fixed ring 1504 and a buffer spring 1505. The rear end of the fixed column 1501 fits the movable The front fixing ring 1503 is fixedly installed on the front outer curved surface of the fixing column 1501, and the rear fixing ring 1504 is fixedly installed on the rear outer curved surface of the fixing tube 1502. The front and rear ends of the buffer spring 1505 are respectively fixedly installed on the rear side of the front fixing ring 1503 and the front side of the rear fixing ring 1504, so that when the buffer assembly 15 is subjected to tension or thrust, the fixing column 1501 will be forced to move forward and backward along the inner wall of the fixing tube 1502. When the fixing column 1501 moves forward and backward , will drive the front fixing ring 1503 to move forward and backward. When the front fixing ring 1503 moves forward and backward, it will stretch or compress the buffer spring 1505. When the buffer spring 1505 is stretched or compressed, the elastic potential energy generated by its own stretching or compression deformation, combined with the friction force generated by the forward and backward movement of the fixing column 1501 along the inner wall of the fixing tube 1502, enables the buffer assembly 15 to play a role in buffering and energy absorption. The upper end of the support arm 14 is rotatably connected to the second hydraulic telescopic rod 16 through a pin shaft, and the rear end telescopic part of the second hydraulic telescopic rod 16 is rotatably connected to the swing arm 17 through a pin shaft, and the lower side of the swing arm 17 is rotatably connected to the outer side of the middle part of the front end of the trailer body 1 through a pin shaft, and the rear end of the swing arm 17 is rotatably connected to the single-axis wheel 18 through a pin shaft, and the bottom of the single-axis wheel 18 is supported on the ground. A protective cover 23 is fixedly installed on the outer side of the front end of the trailer body 1, and the protective cover 23 surrounds the second hydraulic telescopic rod 16 and the buffer assembly 15 inside, so that the second hydraulic telescopic rod 16 and the buffer assembly 15 are dust-proof and collision-proof through the protective cover 23;

[0029] The rear end of the trailer body 1 is rotatably connected with an auxiliary tail plate 19 through a pin shaft, and the upper end of the auxiliary tail plate 19 is inclined. A third pin hole 20 is penetrated and opened on the side of the rear end of the trailer body 1 and the lower end of the auxiliary tail plate 19. The inner wall of the third pin hole 20 is fitted and movably connected with a connecting pin 21, so that the auxiliary tail plate 19 is limited and fixed by the connecting pin 21 cooperating with the third pin hole 20, and the two sides of the connecting pin 21 are penetrated and fitted and movably connected with limiting wires 22, so that the connecting pin 21 is limited by the limiting wires 22 to prevent the connecting pin 21 from falling off.

[0030] Working principle: When in use, the utility model opens the first hydraulic telescopic rod 9 and the second hydraulic telescopic rod 16 through synchronous control. When the first hydraulic telescopic rod 9 is opened, the first hydraulic telescopic rod 9 will drive the supporting roller 10 to move up and down in a straight line. Since the bottom of the supporting roller 10 is supported by the ground, when the supporting roller 10 moves up and down in a straight line, the upper end of the first hydraulic telescopic rod 9 will drive the front end of the trailer body 1 to move up and down. When the second hydraulic telescopic rod 16 is opened, it will drive the rear end of the swing arm 17 to swing up and down. When the rear end of the swing arm 17 swings up and down, it will drive the single-axle wheel 18 to swing up and down, and the bottom of the single-axle wheel 18 is supported by the ground, so that when the single-axle wheel 18 swings up and down, the rear end of the trailer body 1 will move up and down with the front end of the trailer body 1, so that when the first hydraulic telescopic rod 9 and the second hydraulic telescopic rod 16 are opened through synchronous control, the rear end of the trailer body 1 will move up and down with the front end of the trailer body 1. When the second hydraulic telescopic rod 16 is used, the trailer body 1 will be adjusted up and down. When the trailer body 1 descends, the limit of the connecting pin 21 by the limit wire 22 is released. When the limit of the connecting pin 21 by the limit wire 22 is released, the connecting pin 21 is pulled outward. When the connecting pin 21 is pulled outward, the auxiliary tail plate 19 is pushed to swing downward. When the auxiliary tail plate 19 swings downward, the bottom of the auxiliary tail plate 19 will fit the ground. When the bottom of the auxiliary tail plate 19 fits the ground, the motorcycle to be transported can be pushed along the upper end of the auxiliary tail plate 19. The motorcycle can be pushed to the upper end of the trailer body 1. When the motorcycle is pushed to the upper end of the trailer body 1, the motorcycle can be fixed by the fixing frame 24, thereby realizing the up and down lifting and adjustment of the trailer body 1, and facilitating the transportation and loading and unloading of the motorcycle.

[0031] At the same time, the connecting beam 3 is connected to the rear of the external tractor by cooperating with the connecting hole. When the connecting beam 3 is connected to the rear of the external tractor by cooperating with the connecting hole, the trailer body 1 can be towed and moved by the external tractor. When the external tractor tows and moves the trailer body 1, the lower end of the first hydraulic telescopic rod 9 is controlled to be opened and retracted. When the lower end of the first hydraulic telescopic rod 9 is retracted, the support roller 10 is driven to move upward and retract. When the support roller 10 moves upward and retracts, the positioning pin 13 is pulled outward. When the positioning pin 13 is pulled outward, the limiting force of the positioning pin 13 on the rotating disk 8 and the first hydraulic telescopic rod 9 by cooperating with the second pin hole 12 and the first pin hole 11 can be released. When the positioning pin 13 cooperates with the second pin hole 12 and the first pin hole 11 to limit the rotation disk 8 and the first hydraulic telescopic rod 9, the first hydraulic telescopic rod 9 is pushed by the handrail to swing horizontally. When the first hydraulic telescopic rod 9 swings horizontally, it will drive the rotation disk 8 to rotate. When the rotation disk 8 rotates, it will drive the second pin hole 12 to rotate. When the second pin hole 12 rotates to coincide with the first pin hole 11, the first hydraulic telescopic rod 9 can be re-limited and fixed by reinserting the positioning pin 13 into the inner walls of the second pin hole 12 and the first pin hole 11 in sequence, thereby facilitating the horizontal folding and storage of the first hydraulic telescopic rod 9 and the support roller 10.

[0032] At the same time, when the trailer body 1 is transporting the motorcycle, the single-axle wheel 18 will fluctuate up and down due to different road conditions. When the single-axle wheel 18 fluctuates up and down, it will drive the upper end of the swing arm 17 to swing back and forth. When the upper end of the swing arm 17 swings back and forth, it will drive the second hydraulic telescopic rod 16 to swing back and forth. When the second hydraulic telescopic rod 16 swings back and forth, it will drive the lower end of the support arm 14 to swing back and forth. When the lower end of the support arm 14 swings back and forth, it will pull or push the buffer assembly 15. When the buffer assembly 15 is subjected to tension or thrust, the fixed column 1501 will be forced to move forward and backward along the inner wall of the fixed tube 1502. Movement, when the fixed column 1501 moves forward and backward, it will drive the front fixed ring 1503 to move forward and backward. When the front fixed ring 1503 moves forward and backward, it will stretch or compress the buffer spring 1505. When the buffer spring 1505 is stretched or compressed, the elastic potential energy generated by its own stretching or compression deformation, combined with the friction force generated by the fixed column 1501 moving forward and backward along the inner wall of the fixed tube 1502, enables the buffer component 15 to play a role in buffering and energy absorption, thereby achieving transportation buffering while transporting the motorcycle, and avoiding damage to the motorcycle due to excessive bumps during transportation.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic lifting single-axle trailer, characterized in that: The invention comprises a trailer body (1), a trailer beam (2) is fixedly installed at the front end of the trailer body (1), a connecting beam (3) is fixedly installed at the front end of the trailer beam (2), a control box (4) is fixedly installed at the front side of the upper end of the trailer body (1), a mobile control power source (5) and a hydraulic cylinder (6) are fixedly installed inside the control box (4), and a fixing frame (24) for fixing a motorcycle is fixedly installed at the front side of the upper end of the trailer body (1); A fixed plate (7) is fixedly installed at the front side end of the trailer beam (2), and a rotating plate (8) is rotatably connected to the middle part of the outer side of the fixed plate (7) through a rotating shaft, and a first hydraulic telescopic rod (9) is fixedly installed on the outer side of the rotating plate (8), and the telescopic part at the lower end of the first hydraulic telescopic rod (9) is rotatably connected to a supporting roller (10) through a pin shaft, and first pin holes (11) are penetrated through the four corners of the outer side of the fixed plate (7), and a second pin hole (12) is penetrated through the side end of the rotating plate (8), and a positioning pin (13) is movably connected to the inner wall of the second pin hole (12); The front ends of the trailer body (1) are rotatably connected to support arms (14) via pins on both sides; the rear sides of the lower ends of the support arms (14) are rotatably connected to a buffer assembly (15) via pins; the upper ends of the support arms (14) are rotatably connected to a second hydraulic telescopic rod (16) via pins; the rear telescopic portion of the rear end of the second hydraulic telescopic rod (16) is rotatably connected to a swing arm (17) via a pin; the rear end of the swing arm (17) is rotatably connected to a single-axle wheel (18) via a pin; The rear end of the trailer body (1) is rotatably connected to an auxiliary tail plate (19) via a pin shaft, and a third pin hole (20) is provided through the rear end of the trailer body (1) and the lower side of the auxiliary tail plate (19), and a connecting pin (21) is movably connected to the inner wall of the third pin hole (20).

2. The hydraulic lifting single-axle trailer according to claim 1, characterized in that: A connection hole is provided at the front end of the connection beam (3).

3. The hydraulic lifting single-axle trailer according to claim 2, characterized in that: A handrail is fixedly mounted on the top of the first hydraulic telescopic rod (9), and the bottom of the supporting roller (10) is supported on the ground.

4. The hydraulic lifting single-axle trailer according to claim 3, characterized in that: There are four first pin holes (11) which are symmetrically distributed at the four corners of the outer side of the fixing plate (7), and the inner side of the positioning pin (13) is movably connected to the inner wall of the first pin hole (11).

5. The hydraulic lifting single-axle trailer according to claim 4, characterized in that: There are two support arms (14), which are symmetrically distributed on both sides of the front end of the trailer body (1), and the rear end of the buffer component (15) is rotatably connected to the outer side of the front end of the trailer body (1) via a pin shaft.

6. The hydraulic lifting single-axle trailer according to claim 5, characterized in that: The buffer assembly (15) comprises a fixing column (1501), a fixing tube (1502), a front fixing ring (1503), a rear fixing ring (1504) and a buffer spring (1505); the rear end of the fixing column (1501) is movably connected to the inner wall of the front end of the fixing tube (1502); the front fixing ring (1503) is fixedly installed on the outer curved surface of the front end of the fixing column (1501); the rear fixing ring (1504) is fixedly installed on the outer curved surface of the rear end of the fixing tube (1502); and the front and rear ends of the buffer spring (1505) are fixedly installed on the rear side of the front fixing ring (1503) and the front side of the rear fixing ring (1504), respectively.

7. The hydraulic lifting single-axle trailer according to claim 6, characterized in that: The lower side of the swing arm (17) is rotatably connected to the outer side of the middle part of the front end of the trailer body (1) through a pin shaft, and the bottom of the single-axle wheel (18) is supported on the ground. A protective cover (23) is fixedly installed on the outer side of the front end of the trailer body (1), and the protective cover (23) surrounds the second hydraulic telescopic rod (16) and the buffer assembly (15) inside.

8. The hydraulic lifting single-axle trailer according to claim 7, characterized in that: The upper end of the auxiliary tail plate (19) is inclined, and the two sides of the connecting pin (21) are penetrated by a limit iron wire (22) that is movably connected.

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