Novel small flat trailer for removing obstacles

Abstract

The utility model provides a novel small flat trailer for removing obstacles, which comprises a first beam frame and a second beam frame arranged above the first beam frame, a plurality of rollers are arranged below the first beam frame, lifting devices are arranged on the left side and the right side of the first beam frame, and the second beam frame is fixed on the first beam frame through the lifting devices. The front end and the rear end of the second beam frame are each provided with a pair of ratchet wheels, the middles of the ratchet wheels are of a through hole structure, connecting pins are further arranged in through holes of the ratchet wheels, the connecting pins penetrate through the second beam frame and the ratchet wheels and integrate the second beam frame and the ratchet wheels into a whole, the connecting pins are sleeved with swing arms, and the swing arms are matched with the ratchet wheels in a linkage mode. And a cushion block is arranged at the other end of the swing arm. The emergency rescue device is simple in structure, small in size, light in overall weight, high in supporting strength, convenient to use and carry and suitable for fault vehicle rescue in various narrow spaces, and more comfortable experience is brought to a user on the whole.

Description

Technical Field

[0001] This utility model relates to the technical field of flatbed tow trucks, specifically to a new type of flatbed trailer for tow trucks used for clearing obstacles. Background Technology

[0002] A road clearing vehicle, also known as a tow truck or roadside assistance vehicle, has multiple functions including lifting, pulling, and towing. It is primarily used for rescuing disabled vehicles, illegally parked vehicles in cities, and for emergency rescue. Road clearing vehicles can be categorized by their usage characteristics into transport and lifting / towing types; and by structural type into towing, loading, lifting, and rescue (single-arm and double-arm) types. This utility model belongs to the towing and towing type. When a vehicle breaks down and requires rescue, the rescue vehicle must be within a certain distance of the disabled vehicle to carry out rescue operations. If the disabled vehicle is in a confined space, the rescue vehicle cannot approach it, significantly increasing the difficulty of the rescue. In such cases, a flatbed truck or tow truck is needed to cooperate with the road clearing vehicle. Existing flatbed trailers have complex structures and heavy overall loads, making the process from loading preparation to on-site setup laborious and time-consuming for rescue personnel. Accordingly, in order to improve the shortcomings of existing flatbed trailers, this utility model proposes a new type of flatbed-structured recovery vehicle that is simplified in structure, lighter in overall weight, and capable of rescuing disabled vehicles in confined spaces.

[0003] Chinese invention patent application number CN202411163471.4 primarily focuses on developing a multi-functional road clearing vehicle to handle various types of vehicles, such as two-wheeled, three-wheeled, and four-wheeled vehicles. When trams and tricycles are locked and unable to move, this invention allows for the adjustment of a positioning plate to a suitable angle to move and transfer the vehicle. It is simple to operate and highly practical. However, this invention fails to address the aforementioned technical deficiencies in relation to the technical problems raised in this utility model.

[0004] Chinese utility model patent application number CN202421611698.6 relates to a type of transport traction device, which falls within the same technical field as this invention. This utility model uses a high-strength flatbed that penetrates under a disabled vehicle, utilizing its anti-slip properties and high support strength to move the vehicle. While the high-strength steel plate used in this invention certainly meets strength requirements, it significantly increases the overall weight, causing inconvenience in practical use. Compared to the technical problems mentioned in the background section, this utility model does not solve the technical defects.

[0005] Chinese utility model patent application number CN202322182459.5. This utility model improves upon existing devices with only a single hydraulic rod by employing a more powerful hydraulic mechanism, providing sufficient power for clearing large obstacles and facilitating their securing and transport. However, compared to the shortcomings mentioned in the background art, this utility model has a complex structure, overemphasizing the hydraulic power system while neglecting the overall structural volume, which is somewhat counterproductive and fails to solve the aforementioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to provide a new type of flatbed trailer for clearing obstacles, in order to solve the problem that the limited surrounding space during the rescue of a disabled vehicle prevents the rescue vehicle from getting close and thus makes it impossible to carry out timely and effective rescue, as well as the problems of traditional flatbed trailers having complex structures, large overall weight, inconvenience in using with clearing vehicles, and poor practicality.

[0007] Therefore, this utility model provides a novel flatbed trailer for clearing obstacles, including a first beam frame, with rollers respectively provided on the front, middle and rear sides of the first beam frame, characterized in that: a second beam frame is provided above the first beam frame;

[0008] The first beam frame is equipped with lifting devices at both ends; the second beam frame moves up and down relative to the first beam frame via the lifting devices.

[0009] The second beam frame has a pair of ratchet wheels on both the front and rear sides. The ratchet wheels have a through hole in the middle and a connecting pin is installed inside the through hole. The connecting pin passes through the second beam frame and the ratchet wheels and integrates them into one piece.

[0010] A swing arm is fitted onto the connecting pin, and the swing arm is linked with the ratchet. A pad is provided on the other end of the swing arm.

[0011] The advantages are as follows: The main structure of this utility model consists of a first beam frame and a second beam frame. The second beam frame is fixed to the first beam frame by a lifting device, which makes the overall stability high and the lifting and traction more convenient.

[0012] To enhance the maneuverability of the flatbed trailer, multiple rollers are installed on the first beam frame. The lifting device on the first beam frame can be remotely controlled and can support a disabled vehicle that is hundreds of times heavier than itself.

[0013] The second beam frame will be in direct contact with the chassis of the disabled vehicle during use. Therefore, fixing the second beam frame directly to the lifting device will allow the second beam frame to be quickly raised and attached to the bottom of the disabled vehicle.

[0014] The second beam frame is fixed with a hollow ratchet, which is used to interact with the swing arm on the connecting pin inside the ratchet hole. When the swing arm is unfolded, it can be quickly opened by relying on the self-locking function of the ratchet mechanism, and the swing arm can be stabilized to prevent secondary movement.

[0015] At the same time, the swing arm can expand the contact area between the second beam frame and the bottom of the faulty vehicle, and the pad at the other end of the swing arm unfolds at the bottom of the faulty vehicle to increase the contact area.

[0016] A further improvement is that: each of the lifting devices in the first beam frame is equipped with a positioning nut, and a positioning pin is also provided on the second beam frame at a position corresponding to the positioning nut. The positioning nuts are all fitted into the positioning pins, and countersunk screws are provided in the positioning pins. The countersunk screws pass through both the positioning pins and the positioning nuts, and fix the second beam frame to the lifting device of the first beam frame.

[0017] The effect is that, through the cooperation of the positioning nuts, countersunk screws and positioning pins, the second beam frame will be more stable and secure when connected to the first beam frame via the lifting device.

[0018] At the same time, using countersunk screws can make the surface of the second beam frame flatter, making it more stable when in contact with the chassis of the faulty vehicle, and can also avoid damage to the vehicle chassis.

[0019] A further improvement is that the lifting device is an electric lifting device.

[0020] The effect is that the electric lifting device allows this invention to easily access the underside of the disabled vehicle without interfering with its operation.

[0021] A further improvement is that the left and right ends of the first beam frame are curved structures, while the middle is a straight rod structure.

[0022] The benefits are: the curved structure at both ends makes it easier for the flatbed trailer to enter the underside of the disabled vehicle from both ends; this structure is suitable for various emergencies; and the straight rod structure in the middle can improve stability during movement, indirectly improving the overall practicality.

[0023] A further improvement is that the pair of swing arms on the left side of the second beam frame open outward counterclockwise, with a maximum opening angle of 120~150°; while the pair of swing arms on the right side of the second beam frame open outward clockwise, with a maximum opening angle of 120~150°.

[0024] The effect is that the two pairs of swing arms are set with openings facing each other, and the opening angle is set to 120~150°. When entering under the disabled vehicle, the opening angle of the swing arms can support the vehicle above which is dozens of times heavier than itself, and evenly distribute the pressure from above, preventing the vehicle from shaking and falling off the flatbed trailer due to its own weight, making the movement of the disabled vehicle more stable.

[0025] A further improvement is that a pull ring is provided on the middle crossbeam of the first beam frame.

[0026] The effect is that the pull ring makes it convenient for this utility model to tow a disabled vehicle.

[0027] A further improvement is that the ratchet is a two-way self-locking ratchet.

[0028] The effect is that the two-way ratchet can push the swing arm to open regardless of whether it rotates forward or backward. In response to emergency situations, the two-way ratchet can quickly unfold the swing arm to achieve the effect of rescuing the disabled vehicle more quickly. Beneficial effects

[0029] This utility model uses a combination of a first beam frame and a second beam frame to form the main structure of the utility model. The overall structure is simplified and lighter. In special circumstances, it can be easily moved to the accident scene by manpower without the need for other tools. This utility model is equipped with multiple rollers at the bottom of the first beam frame, making it easier to move the disabled vehicle. The two pairs of lifting devices configured on the first beam frame can support all corresponding models of disabled vehicles. When the second beam frame above the lifting device contacts the chassis, it adopts a point-to-surface support method. Under the premise of minimizing the contact area with the chassis, it can stably support the vehicle above while avoiding damage to the chassis. Furthermore, the second beam frame is also equipped with a swing arm, which provides further auxiliary support for the chassis.

[0030] The swing arm can be quickly deployed via a two-way self-locking ratchet and can also be locked at any time to prevent secondary rotation. In summary, this practical structure is simple, lighter in weight, and stronger, making it suitable for vehicle breakdown rescue in various confined spaces. Furthermore, its ease of use provides a better user experience. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 2 This is a structural schematic diagram of the first beam frame;

[0033] Figure 3 This is a structural schematic diagram of the second beam frame;

[0034] Figure 4 This is a sectional view of the present invention along the AA direction;

[0035] In the diagram, 1 is the first beam frame, 2 is the second beam frame, 3 is the roller, 4 is the lifting device, 5 is the positioning pin, 6 is the ratchet, 7 is the connecting pin, 8 is the swing arm, 9 is the pad, 10 is the positioning nut, 11 is the countersunk screw, and 16 is the pull ring. Detailed Implementation

[0036] The following is in conjunction with the instruction manual. Figures 1 to 4 The technical solution and its beneficial effects of this utility model will be made clearer and more explicit through further description of the specific embodiments of this utility model.

[0037] A novel flatbed trailer for clearing obstacles includes a first beam frame 1, with rollers 3 respectively provided on the front, middle and rear sides of the first beam frame 1, and a second beam frame 2 provided on the top of the first beam frame 1.

[0038] The first beam frame 1 is provided with lifting devices 4 at both ends; the second beam frame 2 moves up and down relative to the first beam frame 1 through the lifting devices 4.

[0039] The front and rear sides of the second beam frame 2 are respectively provided with a pair of ratchet 6. The ratchet 6 has a through hole structure in the middle. A connecting pin 7 is also provided in the through hole of the ratchet 6. The connecting pin 7 passes through the second beam frame 2 and the ratchet 6 and integrates them into one piece.

[0040] A swing arm 8 is fitted on the connecting pin 7, and the swing arm 8 is linked with the ratchet 6. A pad 9 is provided on the other end of the swing arm (8).

[0041] like Figure 1 , 2 As described in section 4, each of the lifting devices 4 in the first beam frame 1 is provided with a positioning nut 10, and a positioning pin 5 is provided on the second beam frame 2 at a position corresponding to the positioning nut 10. The positioning nuts 10 are all fitted into the positioning pins 5. The positioning pins 5 are provided with countersunk screws 11, and the countersunk screws 11 pass through both the positioning pins 5 and the positioning nuts 10, thus fixing the second beam frame 2 onto the lifting device 4 of the first beam frame 1.

[0042] The lifting device 4 is an electric lifting device.

[0043] like Figure 2 The first beam frame 1 has curved structures at both ends and a straight rod structure in the middle.

[0044] like Figure 1 The two pairs of swing arms 8 on the left side of the second beam frame 2 open outward counterclockwise, with a maximum opening angle of 120-150°. The two pairs of swing arms 8 on the right side of the second beam frame 2 open outward clockwise, with a maximum opening angle of 120-150°.

[0045] like Figure 2 As described above, a pull ring 16 is provided on the middle crossbeam of the first beam frame 1.

[0046] The ratchet 6 mentioned therein is a two-way self-locking ratchet.

Claims

1. A novel flatbed trailer for clearing obstacles, comprising a first beam frame (1), wherein rollers (3) are respectively provided on the front, middle and rear sides of the lower sides of the first beam frame (1), characterized in that: A second beam frame (2) is provided above the first beam frame (1); The first beam frame (1) is provided with lifting devices (4) at both ends; the second beam frame (2) moves up and down relative to the first beam frame (1) through the lifting devices (4); The front and rear sides of the second beam frame (2) are provided with a pair of ratchet (6), the ratchet (6) has a through hole structure in the middle, and a connecting pin (7) is provided in the through hole of the ratchet (6). The connecting pin (7) passes through the second beam frame (2) and the ratchet (6) and integrates them into one piece. A swing arm (8) is fitted on the connecting pin (7), and the swing arm (8) is linked with the ratchet (6). A pad (9) is provided on the other end of the swing arm (8).

2. The novel flatbed trailer for clearing obstacles according to claim 1, characterized in that: The lifting device (4) in the first beam frame (1) is provided with a positioning nut (10). The second beam frame (2) is also provided with a positioning pin (5) at the position corresponding to the positioning nut (10). The positioning nut (10) is fitted into the positioning pin (5). The positioning pin (5) is provided with a countersunk screw (11). The countersunk screw (11) passes through the positioning pin (5) and the positioning nut (10) at the same time, and fixes the second beam frame (2) on the lifting device (4) of the first beam frame (1).

3. The novel flatbed trailer for clearing obstacles according to claim 1, characterized in that: The lifting device (4) is an electric lifting device.

4. The novel flatbed trailer for clearing obstacles according to claim 1 or 2, characterized in that: The left and right ends of the first beam frame (1) are curved structures, and the middle is a straight rod structure.

5. The novel flatbed trailer for clearing obstacles according to claim 1, characterized in that: The pair of swing arms (8) on the left side of the second beam frame (2) open outward counterclockwise, and the maximum angle of the swing arms (8) is 120~150°. The pair of swing arms (8) on the right side of the second beam frame (2) open outward clockwise, and the maximum angle of the swing arms (8) is 120~150°.

6. The novel flatbed trailer for clearing obstacles according to claim 4, characterized in that: The first beam frame (1) has a pull ring (16) on the middle crossbeam.

7. The novel flatbed trailer for clearing obstacles according to claim 1, characterized in that: The ratchet (6) is a two-way self-locking ratchet.

Images