Trailer frame for rescue and maintenance trailer

Abstract

The trailer frame for the rescue and maintenance trailer comprises a bottom plate, a mounting plate, a side edge distance adjusting assembly, a lifting assembly and a pulling assembly, a driving device comprises a fixing plate, a motor, a bidirectional lead screw and a threaded sliding block, a distance adjusting device comprises a connecting shaft, a square sliding groove and a square sliding block, and the lifting assembly comprises a hydraulic rod and a lifting plate. The pulling assembly comprises a T-shaped sliding groove, a T-shaped sliding block and a handle, a baffle is fixedly arranged on the upper side of the fixing plate, a sponge cushion is arranged on the upper side of the lifting plate, and universal wheels are arranged on the lower side of the bottom plate. The utility model belongs to the technical field of trailer frames, and particularly relates to a trailer frame for a rescue and maintenance trailer. The problems that tires of a traditional trailer frame are prone to being damaged, the distance between tire notches of the trailer frame cannot be adjusted, and the trailer frame cannot adapt to vehicles of different sizes and different types are effectively solved. The trailer frame for the rescue and maintenance trailer is a novel modern trailer frame for the rescue and maintenance trailer.

Description

Technical Field

[0001] This utility model belongs to the field of trailer frame technology, specifically referring to a trailer frame for rescue and repair trailers. Background Technology

[0002] Trailer racks have a wide range of uses; they can be used not only to move accident vehicles for emergency clearance but also to move vehicles within repair shops.

[0003] Chinese Patent CN214240577U discloses a trailer frame for rescue and repair towing. By extending a telescopic rod, two support frames are moved apart to the sides of the car. Simultaneously, the telescopic rod retracts, causing notches on the support frames to engage with the tires of the damaged car. A balance bar then secures the same ends of the two support frames, allowing for adjustment based on the width of the rescue vehicle. Simultaneously, the drive motor is activated, causing a reciprocating screw to rotate via a belt. This rotation of the screw causes the threaded sealing plug to reciprocate within the sealed cavity, drawing air in through an air inlet pipe and supplying it to the pressure chamber. This air pushes a pressure column, causing it to slide down within the pressure chamber, thus raising the support frames and consequently the damaged vehicle. This allows for the rapid placement of immobile damaged vehicles onto the trailer frame for transport.

[0004] However, the aforementioned device, which raises and lowers the car by locking the tire, is prone to damaging the tire, and the inability to adjust the distance between the tire notches makes it unsuitable for vehicles of different sizes and types. Utility Model Content

[0005] The problem this utility model aims to solve is that traditional trailer frames are prone to damaging tires, and the inability to adjust the distance between the tire notches makes them unsuitable for vehicles of different sizes and types.

[0006] To solve the above-mentioned technical problems, this utility model proposes a trailer frame for rescue and repair trailers, including a base plate, a mounting plate, a side adjustment distance assembly, a lifting assembly, and a pulling assembly. The mounting plate is slidably disposed on the base plate, the side adjustment distance assembly is fixed on the base plate, the lifting assembly is fixed on the upper side of the mounting plate, and the pulling assembly is disposed on the lower side of the mounting plate. The side adjustment distance assembly includes a drive device and an adjustment device. The drive device is fixed on the upper side of the base plate, and the adjustment device is disposed on the drive device. The mounting plate has two sets of these components.

[0007] Furthermore, the driving device includes a fixed plate, a motor, a bidirectional lead screw, and a threaded slider. The fixed plate has two sets respectively erected at both ends of the base plate. The motor is fixed on one side of the fixed plate and its output shaft passes through the fixed plate. One end of the bidirectional lead screw is fixed to the output shaft of the motor, and the other end is rotatably mounted on a fixed plate away from the motor. The threaded slider has two sets respectively threadedly connected to both ends of the bidirectional lead screw.

[0008] Furthermore, the adjusting device includes a connecting shaft, a square slide groove, and a square slider. One end of the connecting shaft is rotatably mounted on the threaded slider, and the other end is rotatably mounted on the mounting plate. There are four sets of connecting shafts. The square slide groove is opened on the upper side of the base plate. The square slider is fixed on the end of the mounting plate near the driving device. There are four sets of square slide grooves and square sliders. The square slider is slidably mounted in the square slide groove.

[0009] Furthermore, the lifting assembly includes a hydraulic rod and a lifting plate, the hydraulic rod being fixed to the upper side of the mounting plate, and the lifting plate being fixed to the telescopic shaft of the hydraulic rod.

[0010] Furthermore, the pulling assembly includes a T-shaped groove, a T-shaped slider, and a handle. The T-shaped groove is formed on the underside of the base plate, the T-shaped slider is slidably disposed inside the T-shaped groove, and the handle is fixed to one end of the T-shaped slider. The end of the T-shaped slider away from the handle is larger than the other end. The T-shaped opening at the end of the T-shaped groove near the handle is smaller than the end of the T-shaped slider away from the handle, which is larger than the other end of the T-shaped slider.

[0011] Furthermore, a baffle is fixedly provided on the upper side of the fixing plate.

[0012] Furthermore, a sponge pad is provided on the upper side of the lifting plate.

[0013] Furthermore, the bottom plate is equipped with casters.

[0014] The beneficial effects of this utility model by adopting the above structure are as follows:

[0015] 1. By running the motor, the double-acting screw drives two sets of threaded sliders to slide, thereby rotating the connecting shaft and pushing the square slider on the mounting plate to slide in the square groove until the lifting plate above the mounting plate is aligned with the positions of the bottom sides of the car, thus solving the problem of not being able to adapt to vehicles of different sizes and types.

[0016] 2. By operating a hydraulic rod to lift the lifting plate, the car is lifted, solving the problem that the distance between the tire notches cannot be adjusted and that traditional trailer frames are prone to damaging the tires. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 1;

[0018] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 ;

[0019] Figure 3 A cross-sectional view of an embodiment of this utility model. Figure 1 ;

[0020] Figure 4 A cross-sectional view of an embodiment of this utility model. Figure 2 ;

[0021] Figure 5 A cross-sectional view of an embodiment of this utility model. Figure 3 ;

[0022] Figure 6 A cross-sectional view of an embodiment of this utility model. Figure 4 .

[0023] The components are as follows: 1. Base plate; 2. Mounting plate; 3. Side adjustment distance assembly; 4. Lifting assembly; 5. Pulling assembly; 6. Drive device; 7. Adjustment device; 8. Fixing plate; 9. Motor; 10. Two-way lead screw; 11. Threaded slider; 12. Connecting shaft; 13. Square slide groove; 14. Square slider; 15. Hydraulic rod; 16. Lifting plate; 17. T-shaped slide groove; 18. T-shaped slider; 19. Handle; 20. Baffle; 21. Sponge pad; 22. Universal wheel.

[0024] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] like Figure 1-6As shown, the present invention proposes a trailer frame for rescue and repair trailers, including a base plate 1, a mounting plate 2, a side adjustment distance assembly 3, a lifting assembly 4, and a pulling assembly 5. The mounting plate 2 is slidably mounted on the base plate 1, the side adjustment distance assembly 3 is fixed on the base plate 1, the lifting assembly 4 is fixed on the upper side of the mounting plate 2, and the pulling assembly 5 is located on the lower side of the mounting plate 2. The side adjustment distance assembly 3 includes a drive device 6 and an adjustment device 7. The drive device 6 is fixed on the upper side of the base plate 1, and the adjustment device 7 is located on the drive device 6. The mounting plate 2 has two sets of lifting plates 16. In order to prevent the lifting plate 16 from damaging the car, a sponge pad 21 is provided on the upper side of the lifting plate 16. In order to facilitate movement, casters 22 are provided on the lower side of the base plate 1.

[0027] As per the instruction manual Figure 1 , 3 As shown, in order to adapt to different vehicle widths, the drive device 6 includes a fixed plate 8, a motor 9, a double-acting lead screw 10, and a threaded slider 11. The fixed plate 8 has two sets respectively erected at both ends of the base plate 1. The motor 9 is fixed on one side of the fixed plate 8 and its output shaft passes through the fixed plate 8. One end of the double-acting lead screw 10 is fixed to the output shaft of the motor 9, and the other end is rotatably mounted on a set of fixed plates 8 away from the motor 9. The threaded slider 11 has two sets respectively threadedly connected to both ends of the double-acting lead screw 10. In order to prevent accidental damage to the device, a baffle 20 is fixedly provided on the upper side of the fixed plate 8.

[0028] As per the instruction manual Figure 3-4 As shown, the adjusting device 7 further includes a connecting shaft 12, a square slide groove 13, and a square slider 14. One end of the connecting shaft 12 is rotatably mounted on the threaded slider 11, and the other end is rotatably mounted on the mounting plate 2. There are four sets of connecting shafts 12. The square slide groove 13 is opened on the upper side of the base plate 1. The square slider 14 is fixed on the end of the mounting plate 2 near the drive device 6. There are four sets of square slide grooves 13 and square sliders 14. The square slider 14 is slidably mounted in the square slide groove 13.

[0029] As per the instruction manual Figure 1 As shown, in order to lift the car for easy movement, the lifting assembly 4 includes a hydraulic rod 15 and a lifting plate 16. The hydraulic rod 15 is fixed on the upper side of the mounting plate 2, and the lifting plate 16 is fixed on the telescopic shaft of the hydraulic rod 15.

[0030] As per the instruction manual Figure 5-6 As shown, in order to facilitate the movement of the trailer platform, the pulling assembly 5 includes a T-shaped groove 17, a T-shaped slider 18, and a handle 19. The T-shaped groove 17 is opened on the lower side of the base plate 1. The T-shaped slider 18 is slidably disposed inside the T-shaped groove 17. The handle 19 is fixed to one end of the T-shaped slider 18. The end of the T-shaped slider 18 away from the handle 19 is larger than the other end. The T-shaped opening at the end of the T-shaped groove 17 near the handle 19 is smaller than the end of the T-shaped slider 18 away from the handle 19 and larger than the other end of the T-shaped slider 18.

[0031] In practical use, push the device into the side of the car, run the motor 9 to make the double-sided lead screw 10 drive the two sets of threaded sliders 11 to slide, thereby making the connecting shaft 12 rotate, pushing the square slider 14 on the mounting plate 2 to slide in the square groove 13 until the lifting plate 16 above the mounting plate 2 is aligned with the two sides of the bottom of the car. Run the hydraulic rod 15 to make it lift the lifting plate 16 to raise and lower the car. Pull the handle 19 to make the T-shaped slider 18 slide in the T-shaped groove 17 until the bottom of the T-shaped slider 18 abuts against one end of the outer side of the T-shaped groove 17 and is fixed. At this time, it can be pulled by attaching a connecting rope to the handle. The above is the entire usage process of the trailer frame for rescue and repair trailers.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0034] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A trailer frame for a rescue and repair trailer, characterized in that: The invention comprises a base plate (1), a mounting plate (2), a side distance adjustment component (3), a lifting component (4) and a pulling component (5); the mounting plate (2) is slidably arranged on the base plate (1); the side distance adjustment component (3) is fixed on the base plate (1); the lifting component (4) is fixed on the upper side of the mounting plate (2); the pulling component is arranged on the lower side of the mounting plate (2); the side distance adjustment component (3) comprises a driving device (6) and a distance adjustment device (7); the driving device (6) is fixed on the upper side of the base plate (1); the distance adjustment device (7) is arranged on the driving device (6); and the mounting plate (2) is provided with two groups.

2. The trailer frame for a rescue and repair trailer according to claim 1, characterized in that: The driving device (6) comprises a fixed plate (8), a motor (9), a bidirectional screw rod (10) and a threaded slider (11); the fixed plate (8) is provided with two groups of screw rods respectively arranged at two ends of the bottom plate (1); the motor (9) is fixed to one side of the fixed plate (8) and the output shaft passes through the fixed plate (8); one end of the bidirectional screw rod (10) is fixed to the output shaft of the motor (9) and the other end is rotatably arranged on a group of fixed plates (8) away from the motor (9); the threaded slider (11) is provided with two groups of screw rods respectively threadedly connected to the two ends of the bidirectional screw rod (10).

3. The trailer frame for a rescue and repair trailer according to claim 2, characterized in that: The distance adjustment device (7) comprises a connecting shaft (12), a square slide groove (13) and a square slider (14); one end of the connecting shaft (12) is rotatably mounted on a threaded slider (11) and the other end is rotatably mounted on a mounting plate (2); the connecting shaft (12) is provided with four groups; the square slide groove (13) is provided on the upper side of the bottom plate (1); the square slider (14) is fixed on one end of the mounting plate (2) close to the driving device (6); the square slide groove (13) and the square slider (14) are provided with four groups; the square slider (14) is slidably mounted in the square slide groove (13).

4. The trailer frame for a rescue and repair trailer according to claim 3, characterized in that: The lifting assembly (4) comprises a hydraulic rod (15) and a lifting plate (16); the hydraulic rod (15) is fixed on the upper side of the mounting plate (2); and the lifting plate (16) is fixed on the telescopic shaft of the hydraulic rod (15).

5. The trailer frame for a rescue and repair trailer according to claim 4, characterized in that: The pulling assembly (5) comprises a T-shaped slide groove (17), a T-shaped slider (18) and a handle (19); the T-shaped slide groove (17) is opened on the lower side of the base plate (1); the T-shaped slider (18) is slidably arranged inside the T-shaped slide groove (17); the handle (19) is fixed to one end of the T-shaped slider (18); the end of the T-shaped slider (18) away from the handle (19) is larger than the other end; the T-shaped opening at one end of the T-shaped slide groove (17) close to the handle (19) is smaller than the end of the T-shaped slider (18) away from the handle (19) and larger than the other end of the T-shaped slider (18).

6. The trailer frame for a rescue and repair trailer according to claim 5, characterized in that: A baffle (20) is fixedly provided on the upper side of the fixing plate (8).

7. The trailer frame for a rescue and repair trailer according to claim 6, characterized in that: A sponge pad (21) is provided on the upper side of the lifting plate (16).

8. The trailer frame for a rescue and repair trailer according to claim 7, characterized in that: Universal wheels (22) are provided on the lower side of the base plate (1).

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