Trailer frame convenient for vehicle to carry motorcycle

Abstract

The utility model provides a trailer frame convenient for a vehicle to carry a motorcycle, and belongs to the technical field of motorcycle carrying tools. Comprising an outer frame and an inner frame, the inner frame is slidably connected to the outer frame, the inner frame can slide in the length direction of the outer frame, a front wheel fixing frame is slidably connected to the inner frame, and the front wheel fixing frame can slide in the length direction of the inner frame; the front portion of the outer frame is slidably connected with a driving motor frame in a limiting mode, the middle of the inner frame is hinged to the rear end of the driving motor frame, and after the inner frame and the driving motor frame slide backwards in place along the outer frame, the inner frame rotates around the hinge point of the inner frame and the driving motor frame to the rear end to be supported on the ground. And a driving structure for driving the front wheel fixing frame to automatically slide upwards is arranged on the driving motor frame. According to the utility model, the motorcycle can be conveniently, quickly and stably loaded and unloaded in a carrying vehicle, the operation difficulty is effectively reduced, the situation that the motorcycle is damaged due to shaking in the existing hauling process is avoided, the transportation process is safer, and the practicability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of motorcycle transport vehicles, and particularly relates to a trailer frame which is convenient for the vehicle to carry a motorcycle. Background Art

[0002] Motorcycles are a common means of transportation for modern people. Among them, off-road motorcycles have become a relatively new sport for modern people. However, motorcycles like off-road motorcycles, which are only suitable for specific occasions, pose a challenge to their transportation.

[0003] In existing technology, motorcycles are often transported using a car-and-trailer system. This involves loading the motorcycle onto a trailer, which is then towed by the car. This method not only requires a high level of power from the transporting vehicle, but also increases fuel consumption, resulting in a waste of resources. Furthermore, it requires parking spaces not only for the transport vehicle but also for the trailer, significantly increasing transportation costs.

[0004] Another currently used method is to transport motorcycles using existing pickup trucks. This method uses pickup trucks directly for transportation, eliminating the numerous issues associated with trailer racks and their parking. However, this method suffers from the fact that loading and unloading the motorcycle from the pickup truck requires manual labor and the use of ropes to secure the motorcycle, which is time-consuming and labor-intensive, resulting in poor securing results and making it difficult to ensure stable transportation. This can lead to the motorcycle being easily shaken during transport, causing damage. Therefore, improvements are needed to address the loading and unloading issues associated with motorcycles transported using pickup trucks. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a trailer frame that is convenient for vehicles to carry motorcycles. The utility model is a trailer frame designed for carrying and loading and unloading motorcycles in pickup truck compartments or commercial RV compartments. The trailer frame can connect the carrying compartment with the ground to form a sloped conveyor path, thereby realizing convenient, fast and stable loading and unloading of motorcycles in the carrying vehicle, effectively reducing the difficulty of operation, avoiding the situation in which the motorcycle is damaged due to shaking during the existing towing process, and making the transportation process safer and more practical.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by this utility model is:

[0007] The trailer frame is convenient for vehicles to carry motorcycles, and includes an outer frame and an inner frame. The inner frame is slidably connected to the outer frame, and the inner frame can slide along the length direction of the outer frame. A front wheel fixing frame is slidably connected to the inner frame, and the front wheel fixing frame can slide along the length direction of the inner frame; the front part of the outer frame is limitedly slidably connected to a drive motor frame, and the middle part of the inner frame is hinged to the rear end of the drive motor frame. After the inner frame and the drive motor frame slide backward into place along the outer frame, the inner frame rotates around the hinge point with the drive motor frame until its rear end is supported on the ground; the drive motor frame is provided with a drive structure for driving the front wheel fixing frame to automatically slide up.

[0008] To further limit the above scheme, inner and outer frame side rollers are provided on the outer sides of the front middle parts of the side beams on both sides of the inner frame, and the inner and outer frame side rollers are rolled and adapted in the slideways on the inner sides of the side beams on both sides of the outer frame; two inner frame lower support rollers are provided at the rear end of the outer frame, and the two inner frame lower support rollers are respectively rolled and supported on the lower surfaces of the side beams on both sides of the inner frame; and ground support rollers are provided on both sides of the rear part of the inner frame.

[0009] A further limitation of the above scheme is that front wheel frame rollers are provided on the outer sides of the side beams on both sides of the front wheel fixing frame, and the front wheel frame rollers on both sides are respectively slidably adapted in the slideways on the inner sides of the side beams on both sides of the inner frame; a front limit plate is fixedly provided on the front end of the upper front end of the front wheel fixing frame, and a front wheel rear limit plate is provided on the upper rear end of the front wheel fixing frame, and the front wheel rear limit plate is telescopically adjusted and connected to the front wheel fixing frame through the rear limit plate telescopic rod and the rear limit plate connecting shaft, and the rear limit plate connecting shaft is movably passed through the sleeve at the lower part of the front wheel rear limit plate, and the two ends of the rear limit plate connecting shaft are fixedly connected to the rear limit plate telescopic rods on both sides, and the rear limit plate telescopic rods on both sides are slidably inserted into the rear end of the front wheel fixing frame and are adjusted and fastened through the waist-shaped holes and fixing screws.

[0010] Further limiting the above solution, motor frame rollers are provided on both sides of the driving motor frame, and the motor frame rollers on both sides are respectively rotatably adapted in the slideways on the inner sides of the side beams of the outer frame, and motor frame limit blocks are provided on both sides of the driving motor frame, and the motor frame limit blocks are located on the upper parts of the upper surfaces of the side beams on both sides of the outer frame, and motor frame limit blocks I are provided at the front ends of the upper surfaces of the side beams on both sides of the outer frame, and motor frame limit blocks II are provided at the rear middle parts of the upper surfaces of the side beams on both sides of the outer frame;

[0011] The driving structure on the driving motor frame is a winch motor fixed on its upper part, and the winch belt on the winch motor is fixedly connected to the front end of the front wheel fixing frame. The winch motor is used to pull the front wheel fixing frame to automatically slide forward and upward, and the front end of the inner frame is provided with a pulley for supporting the winch belt;

[0012] The rear end of the front wheel fixing frame is connected to the rear end of the inner frame through a spring, and the spring pulls the front wheel fixing frame to slide backward through elastic force.

[0013] To further define the above scheme, the articulated structure of the inner frame and the drive motor frame is as follows: the drive motor frame is provided with a motor frame longitudinal beam extending rearward, a fulcrum hinge shaft is fixed on the motor frame longitudinal beam, a fulcrum hinge tube is sleeved on the fulcrum hinge shaft, and the fulcrum hinge tube is fixedly connected to the crossbeam in the middle of the inner frame through a connecting plate.

[0014] As a further limitation of the above solution, a buffer cylinder is provided between the longitudinal beam of the motor frame and the front end of the inner frame.

[0015] Further defining the above solution, the outer frame is composed of an outer frame main body and an outer frame extension section, the outer frame extension section is connected to the rear end of the outer frame main body, a connecting plate I is fixed on both outer sides of the rear end of the outer frame main body, and a connecting plate II is fixed on both outer sides of the front end of the outer frame extension section, the connecting plate I is provided with a positioning pin, and the connecting plate II is provided with a cotter pin hole that is adapted to the positioning pin and facilitates the entry and exit of the outer frame extension section, and the connecting plates I and II are fixed by tightening screws after being positioned;

[0016] The inner frame is composed of an inner frame main body and an inner frame extension section. The inner frame extension section is connected to the rear end of the inner frame main body. Pins are provided on both sides of the front end of the inner frame extension section, and sockets are provided on both sides of the rear end of the inner frame main body. The pins and sockets are plugged together, and the inner frame main body and the inner frame extension section are fixedly connected on both sides by locks.

[0017] As a further limitation of the above solution, the upper portion of the rear end of the inner frame is detachably fixedly connected to the rear wheel limiting plate.

[0018] To further define the above solution, the outer frame is provided with an outer frame locking seat, the inner frame is provided with an inner frame locking seat corresponding to the position of the outer frame locking seat, and the outer frame locking seat and the inner frame locking seat are connected by inner and outer frame locking screws.

[0019] To further limit the above scheme, side brackets are fixed on both sides of the outer end of the outer frame, a fixing ring I is provided on the side bracket, a fixing ring II is provided on both sides of the front wheel fixing frame, and fixing rings III are arranged on the outer sides of the side beams of the outer frame; trailer frame fixing seats are arranged on the outer sides of the side beams of the outer frame, and the trailer frame fixing seats are used to be fixedly connected to the transport vehicle.

[0020] The advantages of this utility model compared with the prior art are:

[0021] 1. This solution is a trailer frame designed for loading and unloading motorcycles in pickup trucks or commercial RVs. The trailer frame can connect the transport compartment to the ground to form a sloped conveyor path. The front wheel of the motorcycle is restrained on the front wheel fixing frame of the trailer frame, so that the motorcycle can be automatically transported along the trailer frame to the transport compartment. This realizes convenient, fast and stable loading and unloading of the motorcycle in the transport vehicle, effectively reduces the difficulty of operation, avoids the situation in which the motorcycle is damaged by shaking during the existing towing process, and makes the transportation process safer and more practical.

[0022] 2. This solution changes the mode of transportation of motorcycles, greatly reduces the fuel consumption of transport vehicles, and saves resources;

[0023] 3. When using this solution, the trailer frame is fixed in the transport compartment, and the motorcycle is better fixed on the trailer frame by setting multiple fixing rings, making the transportation of the motorcycle safer and more reliable;

[0024] 4. This solution has the characteristics of simple structure, reasonable design, practicality and convenience, and can well meet people's needs for transporting motorcycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the structural front view of the utility model;

[0026] Figure 2 This is a top view of the structure of the utility model;

[0027] Figure 3 This is a top view of the structure of the utility model after removing the front wheel fixing frame;

[0028] Figure 4 This is a schematic diagram of the utility model in use. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0031] It should be noted that, as used herein, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising the elements.

[0032] See also Figure 1-4 , describe in detail the embodiments of the present utility model.

[0033] Example: A trailer frame for transporting motorcycles, see Figure 1 and 2 As shown, it includes an outer frame 1 and an inner frame 2, the inner frame 2 is slidably connected to the outer frame 1, the inner frame 2 can slide along the length direction of the outer frame 1, and the inner frame 2 is slidably connected to a front wheel fixing frame 16, and the front wheel fixing frame 16 can slide along the length direction of the inner frame 2; the front part of the outer frame 1 is slidingly connected with a driving motor frame 9, the middle part of the inner frame 2 is hinged to the rear end of the driving motor frame 9, after the inner frame 2 and the driving motor frame 9 slide backward along the outer frame 1 into place, the inner frame 2 rotates around the hinge point with the driving motor frame 9 until its rear end is supported to the ground; the driving motor frame 9 is provided with a driving structure for driving the front wheel fixing frame 16 to automatically slide up.

[0034] In the above embodiment, when the trailer frame is in use, Figure 4As shown, the outer frame 1 is fixed to the bottom surface of the interior of a transport compartment such as a pickup truck, and the inner frame 2 and the drive motor frame 9 are easily pushed by hand to slide along the outer frame 1 toward the rear of the compartment. When the drive motor frame 9 slides to the rearward position of the middle of the outer frame 1, it is restricted and no longer moves, and the inner frame 2 rotates around the hinge point with the rear end of the drive motor frame 9, so that the rear end of the inner frame 2 touches the ground. At the same time, the driving structure releases the front wheel fixing frame 16, and the front wheel fixing frame 16 slides along the inner frame 2 under the action of gravity or external elastic force until it touches the ground, thereby forming an inclined trailer frame. The slope conveyor is then used to limit the front wheel of the motorcycle to the front wheel fixing frame of the trailer frame. Under the action of the driving structure pulling the front wheel fixing frame 16, the motorcycle can automatically move up along the inclined inner frame 2. After the motorcycle is completely moved onto the inner frame 2, under the action of the pulling force of the driving structure, the inner frame 2 rotates in the opposite direction around the hinge point with the rear end of the drive motor frame 9, so that the inner frame 2 and the motorcycle thereon are placed in a horizontal state. Then, the person pushes the inner frame 2 and the drive motor frame 9 along the outer frame 1 to slide to the front of the vehicle compartment, and finally fixes the motorcycle. This device realizes the convenient, fast and stable loading and unloading of the motorcycle in the transport vehicle, effectively reduces the difficulty of operation, avoids the situation in which the motorcycle is damaged by shaking during the existing towing process, and makes the transportation process safer and more practical.

[0035] In a specific embodiment: see Figure 1 and 2 As shown, inner and outer frame side rollers 3 are provided on the outer sides of the middle front positions of the side beams on both sides of the inner frame 2, and the inner and outer frame side rollers 3 are rollingly adapted in the slideways on the inner sides of the side beams on both sides of the outer frame 1; two inner frame lower support rollers 4 are provided at the rear end of the outer frame 1, and the two inner frame lower support rollers 4 are respectively rollingly supported on the lower surfaces of the side beams on both sides of the inner frame 2; ground support rollers 5 are provided on both sides of the rear of the inner frame 2.

[0036] In the above embodiment, the inner and outer frame side rollers 3 on both sides of the inner frame 2 are used to move the inner frame 2 along the slideway in the outer frame 1. The inner frame lower support rollers 4 behind the outer frame 1 are used to provide rolling support for the lower side of the inner frame 2. The ground support rollers 5 at the rear of the inner frame 2 are used to contact and support the inner frame 2 on the ground when it is tilted.

[0037] In a specific embodiment: see Figure 1As shown, front wheel frame rollers 17 are provided on the outer sides of the side beams on both sides of the front wheel fixing frame 16. The front wheel frame rollers 17 on both sides are respectively adapted to roll in the slideways on the inner sides of the side beams on both sides of the inner frame 2 for movement of the front wheel fixing frame 16. A front wheel front limit plate 18 is fixedly provided on the upper front end of the front wheel fixing frame 16, and a front wheel rear limit plate 19 is provided on the upper rear end of the front wheel fixing frame 16. The front wheel rear limit plate 19 is connected to the front wheel fixing frame 16 in a telescopic and adjustable manner via a rear limit plate telescopic rod 20 and a rear limit plate connecting shaft 21. The rear limit plate connecting shaft 21 is movably inserted into the sleeve at the lower part of the front wheel rear limit plate 19. The two ends of the rear limit plate connecting shaft 21 are fixedly connected to the rear limit plate telescopic rods 20 on both sides. The rear limit plate telescopic rods 20 on both sides are respectively slidably inserted into the rear end of the front wheel fixing frame 16 and are adjusted and fastened via waist-shaped holes and fixing screws.

[0038] In the above-described embodiment, the front wheel front stop plate 18 and the front wheel rear stop plate 19 are both designed and manufactured to conform to the shape of the front wheel, enabling them to adapt and limit the position of the front wheel. Furthermore, the front wheel rear stop plate 19 is adjusted and fastened via waist-shaped holes and fixing screws, enabling forward and backward movement of the front wheel rear stop plate 19, thereby adjusting the distance between the front and rear stop plates to suit the size of the motorcycle wheel. Furthermore, the front wheel rear stop plate 19 can rotate about the rear stop plate connecting shaft 21, thereby ensuring that the edge of the front wheel rear stop plate 19 is in close contact with the ground, facilitating the entry of the motorcycle wheel into the front wheel mounting bracket.

[0039] In a specific embodiment: see Figure 1 As shown, motor frame rollers 11 are provided on both sides of the driving motor frame 9. The motor frame rollers 11 on both sides are respectively adapted to roll in the slideways on the inner sides of the two side beams of the outer frame 1 to drive the movement of the motor frame 9.

[0040] Motor frame limit blocks 13 are provided on both sides of the driving motor frame 9, and the motor frame limit blocks 13 are located on the upper part of the upper surface of the side beams on both sides of the outer frame 1. Motor frame limit blocks I 12 are provided at the front end of the upper surface of the side beams on both sides of the outer frame 1, and motor frame limit blocks II 14 are provided at the rear middle position of the upper surface of the side beams on both sides of the outer frame 1.

[0041] In the above structure, the motor frame limit block I12 and the motor frame limit block II14 realize the moving range of the driving motor frame 9 on the outer frame 1 by blocking the motor frame limit block 13, so that it is limited to the required moving range, ensuring that the rotation fulcrum of the inner frame 2 is exactly at the rear end edge of the outer frame 1.

[0042] In a specific embodiment: see Figure 2As shown, the driving structure on the driving motor frame 9 is a winch motor 10 fixed on its upper part, and the winch belt 15 on the winch motor 10 is fixedly connected to the front end of the front wheel fixing frame 16. The winch motor 10 is used to pull the front wheel fixing frame 16 to automatically slide forward and upward, and the front end of the inner frame 2 is provided with a pulley 22 for supporting the winch belt 15.

[0043] In the above embodiment, when the front wheel fixing frame 16 moves backward on the inner frame 2, the winch motor 10 releases the winch belt 15 as the front wheel fixing frame 16 moves; when the winch motor 10 retracts the winch belt 15, it can pull the front wheel fixing frame 16 forward on the inner frame 2, thereby realizing the automatic upward movement of the inner frame 2 along the slope.

[0044] In a specific embodiment: see Figure 2 As shown, the rear end of the front wheel fixing frame 16 is connected to the rear end of the inner frame 2 through a spring 23, and the spring 23 pulls the front wheel fixing frame 16 downward through elastic force.

[0045] In the above embodiment, the function of the spring 23 is to provide a pulling force for the front wheel fixing frame 16 to move backward.

[0046] In a specific embodiment: see Figure 3 As shown, the hinged structure of the inner frame 2 and the drive motor frame 9 is as follows: the drive motor frame 9 is provided with a motor frame longitudinal beam 9-1 extending backward, a fulcrum hinge shaft 9-3 is fixed on the motor frame longitudinal beam 9-1, a fulcrum hinge tube 9-2 is sleeved on the fulcrum hinge shaft 9-3, and the fulcrum hinge tube 9-2 is fixedly connected to the crossbeam in the middle of the inner frame 2 through a connecting plate.

[0047] In the above embodiment, the connection between the inner frame 2 and the drive motor frame 9 is realized. By limiting the drive motor frame 9 on the outer frame 1, the moving distance of the inner frame 2 is limited, and the rotation of the inner frame 2 can be realized, so that the inner frame 2 is in a sloped shape that is convenient for loading and unloading the motorcycle.

[0048] In a specific embodiment: see Figure 1 As shown, a buffer cylinder 25 is provided between the motor frame longitudinal beam 9 - 1 and the front end of the inner frame 2 .

[0049] In the above structure, the buffer cylinder 25 is mainly used to buffer the inner frame 2 during its rotation, to prevent the inner frame 2 from colliding with the outer frame 1 when rotating from a slope to a horizontal position, thereby preventing the motorcycle from being damaged by impact.

[0050] In a specific embodiment: see Figure 2 and 3As shown, the outer frame 1 is composed of an outer frame body 1-1 and an outer frame extension section 1-2. The outer frame extension section 1-2 is connected to the rear end of the outer frame body 1-1. Connecting plates I1-3 are fixed on both outer sides of the rear end of the outer frame body 1-1. Connecting plates II1-4 are fixed on both outer sides of the front end of the outer frame extension section 1-2. A positioning pin 1-5 is provided on the connecting plate I1-3. The connecting plate II1-4 is provided with an open pin hole that is adapted to the positioning pin 1-5 and facilitates the entry and exit of the outer frame extension section 1-2. After the connecting plates I1-3 and II1-4 are positioned, they are fixed by fastening screws 1-6.

[0051] The inner frame 2 is composed of an inner frame main body 2-1 and an inner frame extension section 2-2. The inner frame extension section 2-2 is connected to the rear end of the inner frame main body 2-1. Pins 2-3 are provided on both sides of the front end of the inner frame extension section 2-2. Sockets 2-4 are provided on both sides of the rear end of the inner frame main body 2-1. The pins 2-3 and the sockets 2-4 are plugged together. The inner frame main body 2-1 and the inner frame extension section 2-2 are fixedly connected on both sides by lock buckles 2-5.

[0052] In the above embodiment, the inner and outer frames are designed to be two-section structures and adopt a detachable connection method. After the motorcycle is loaded and unloaded, the rear extended sections of the inner and outer frames can be disassembled or folded, thereby solving the problem that the trailer frame cannot be placed in the carriage of the transport vehicle due to its excessive overall length.

[0053] In a specific embodiment: see Figure 1 As shown, the upper portion of the rear end of the inner frame 2 is detachably fixedly connected to the rear wheel limiting plate 24 .

[0054] In the above embodiment, after the motorcycle is loaded onto the carrier, the rear wheel limiting plate 24 is used to fix and limit the rear wheel of the motorcycle, thereby improving the loading stability of the motorcycle.

[0055] In a specific embodiment: see Figure 1 As shown, the outer frame 1 is provided with an outer frame locking seat 6, and the inner frame 2 is provided with an inner frame locking seat 7 corresponding to the position of the outer frame locking seat 6. The outer frame locking seat 6 and the inner frame locking seat 7 are connected by inner and outer frame locking screws 8.

[0056] In the above embodiment, the inner and outer frames are locked after loading to prevent unreliable and unstable hidden dangers caused by sliding against each other.

[0057] In a specific embodiment: see Figure 1As shown, side brackets 26 are fixed on both sides of the outer end of the outer frame 1, and a fixing ring I 27 is provided on the side bracket 26. Fixing rings II 28 are provided on both sides of the front wheel fixing frame 16. Fixing rings III 29 are distributed on the outer sides of the side beams of the outer frame 1; trailer frame fixing seats 30 are distributed on the outer sides of the side beams of the outer frame 1, and the trailer frame fixing seats 30 are used to be fixedly connected to the transport vehicle.

[0058] In the above embodiment, by making various fixing rings on the trailer frame, the motorcycle can be better fixed on the trailer frame, making the transportation of the motorcycle safer and more reliable.

[0059] The utility model has the characteristics of simple structure, reasonable design, practicality, convenience, etc., and can well meet people's needs for transporting motorcycles.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0061] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A trailer frame for transporting motorcycles, characterized by: The invention comprises an outer frame (1) and an inner frame (2), wherein the inner frame (2) is slidably connected to the outer frame (1), and the inner frame (2) can slide along the length direction of the outer frame (1); a front wheel fixing frame (16) is slidably connected to the inner frame (2), and the front wheel fixing frame (16) can slide along the length direction of the inner frame (2); a driving motor frame (9) is provided at the front of the outer frame (1) in a limited sliding connection, and the middle of the inner frame (2) is hinged to the rear end of the driving motor frame (9); after the inner frame (2) and the driving motor frame (9) slide backward along the outer frame (1) to their proper positions, the inner frame (2) rotates around the hinge point with the driving motor frame (9) until its rear end is supported on the ground; and a driving structure for driving the front wheel fixing frame (16) to automatically slide upward is provided on the driving motor frame (9).

2. The trailer frame for conveniently transporting motorcycles according to claim 1, characterized in that: Inner and outer frame side rollers (3) are provided on the outer sides of the front middle portions of the side beams on both sides of the inner frame (2), and the inner and outer frame side rollers (3) are rollingly adapted in the slideways on the inner sides of the side beams on both sides of the outer frame (1); two inner frame lower support rollers (4) are provided at the rear end portion of the outer frame (1), and the two inner frame lower support rollers (4) are respectively rollingly supported on the lower surfaces of the side beams on both sides of the inner frame (2); and ground support rollers (5) are provided on both sides of the rear portion of the inner frame (2).

3. The trailer frame for conveniently transporting motorcycles according to claim 1, characterized in that: The front wheel fixing frame (16) is provided with front wheel frame rollers (17) on the outer sides of the side beams on both sides, and the front wheel frame rollers (17) on both sides are respectively adapted to roll in the slideways on the inner sides of the side beams on both sides of the inner frame (2); the front wheel fixing frame (16) is fixed with a front wheel front limit plate (18) on the front end of the upper part, and the front wheel fixing frame (16) is provided with a front wheel rear limit plate (19) on the rear end of the upper part, and the front wheel rear limit plate (19) is connected to the rear limit plate by a telescopic rod (20) and a rear limit plate. The limit plate connecting shaft (21) is connected to the front wheel fixing frame (16) in a telescopically adjustable manner. The rear limit plate connecting shaft (21) is movably inserted into the sleeve at the lower part of the front wheel rear limit plate (19). The two ends of the rear limit plate connecting shaft (21) are fixedly connected to the rear limit plate telescopic rods (20) on both sides. The rear limit plate telescopic rods (20) on both sides are respectively slidably inserted into the rear end of the front wheel fixing frame (16) and are adjusted and fastened through the waist-shaped holes and fixing screws.

4. The trailer frame for conveniently transporting motorcycles according to claim 1, characterized in that: Both sides of the driving motor frame (9) are provided with motor frame rollers (11), and the motor frame rollers (11) on both sides are respectively adapted to roll in the slideways on the inner sides of the side beams of the outer frame (1). Both sides of the driving motor frame (9) are provided with motor frame limit blocks (13), and the motor frame limit blocks (13) are located at the upper parts of the upper surfaces of the side beams on both sides of the outer frame (1). The front ends of the upper surfaces of the side beams on both sides of the outer frame (1) are provided with motor frame limit blocks I (12), and the middle and rear positions of the upper surfaces of the side beams on both sides of the outer frame (1) are provided with motor frame limit blocks II (14); The driving structure on the driving motor frame (9) is a winch motor (10) fixed to the upper portion thereof, the winch belt (15) on the winch motor (10) is fixedly connected to the front end of the front wheel fixing frame (16), the winch motor (10) is used to pull the front wheel fixing frame (16) to automatically slide forward, and the front end of the inner frame (2) is provided with a pulley (22) for supporting the winch belt (15); The rear end of the front wheel fixing frame (16) is connected to the rear end of the inner frame (2) via a spring (23), and the spring (23) pulls the front wheel fixing frame (16) downward through elastic force.

5. The trailer frame for conveniently transporting motorcycles according to claim 1, characterized in that: The hinged structure of the inner frame (2) and the drive motor frame (9) is as follows: the drive motor frame (9) is provided with a motor frame longitudinal beam (9-1) extending rearward, a fulcrum hinge shaft (9-3) is fixed on the motor frame longitudinal beam (9-1), a fulcrum hinge tube (9-2) is sleeved on the fulcrum hinge shaft (9-3), and the fulcrum hinge tube (9-2) is fixedly connected to the crossbeam in the middle of the inner frame (2) via a connecting plate.

6. The trailer frame for conveniently transporting motorcycles according to claim 5, characterized in that: A buffer oil cylinder (25) is provided between the motor frame longitudinal beam (9-1) and the front end of the inner frame (2).

7. The trailer frame for conveniently transporting motorcycles according to claim 1, characterized in that: The outer frame (1) is composed of an outer frame body (1-1) and an outer frame extension section (1-2), the outer frame extension section (1-2) is connected to the rear end of the outer frame body (1-1), the outer sides of the rear end of the outer frame body (1-1) are fixed with connecting plates I (1-3), the outer sides of the front end of the outer frame extension section (1-2) are fixed with connecting plates II (1-4), the connecting plate I (1-3) is provided with a positioning pin (1-5), the connecting plate II (1-4) is provided with an open pin hole adapted to the positioning pin (1-5) and convenient for the outer frame extension section (1-2) to enter and exit, and the connecting plate I (1-3) and the connecting plate II (1-4) are fixed by fastening screws (1-6) after being positioned; The inner frame (2) is composed of an inner frame main body (2-1) and an inner frame extension section (2-2); the inner frame extension section (2-2) is connected to the rear end of the inner frame main body (2-1); latches (2-3) are provided on both sides of the front end of the inner frame extension section (2-2); and sockets (2-4) are provided on both sides of the rear end of the inner frame main body (2-1); the latches (2-3) and the sockets (2-4) are plugged together, and the inner frame main body (2-1) and the inner frame extension section (2-2) are fixedly connected on both sides by lock buckles (2-5).

8. The trailer frame for transporting motorcycles according to claim 1, characterized in that: The upper portion of the rear end of the inner frame (2) is detachably fixedly connected to the rear wheel limiting plate (24).

9. The trailer frame for transporting motorcycles according to claim 1, characterized in that: The outer frame (1) is provided with an outer frame locking seat (6), and the inner frame (2) is provided with an inner frame locking seat (7) corresponding to the position of the outer frame locking seat (6). The outer frame locking seat (6) and the inner frame locking seat (7) are connected via inner and outer frame locking screws (8).

10. The trailer frame for transporting motorcycles according to claim 1, characterized in that: Side brackets (26) are fixed on both sides of the outer end of the outer frame (1), and a fixing ring I (27) is provided on the side bracket (26). Fixing rings II (28) are provided on both sides of the front wheel fixing frame (16). Fixing rings III (29) are distributed on the outer sides of the side beams of the outer frame (1). Trailer frame fixing seats (30) are distributed on the outer sides of the side beams of the outer frame (1), and the trailer frame fixing seats (30) are used for fixed connection with the transport vehicle.

Images