Energy-absorbing trailer frame structure

Abstract

The utility model discloses an energy-absorbing trailer frame structure in the technical industry of trailer frame manufacturing. Comprising an L-shaped connecting plate, two energy absorption boxes are installed at the rear end of the L-shaped connecting plate, an anti-collision beam is installed at the rear ends of the energy absorption boxes, a hinge seat is installed above the anti-collision beam, a hinge column is installed at the rear end of the hinge seat, a main installation seat is installed at the rear end of the hinge column, side beams are installed at the two ends of the main installation seat respectively, and two wheel fixing assemblies are installed on the side beams respectively. A top beam is mounted above the main mounting seat; and two handlebar fixing components are sleeved on the top beam. By arranging the energy absorption box, when small collision occurs behind the trailer during driving, the elastic energy absorption column in the energy absorption box is compressed, the movable column advances to compress the buffer piece, the buffer square hole in the buffer piece deforms, the buffer spring is compressed, force caused by collision is filtered out, and damage to the trailer frame and an automobile is prevented; and by arranging the hinge seat, the adjusting bolt and the hinge column, the whole trailer frame can be rotated and folded around the hinge seat and can be stored when not used, and the trailer frame is prevented from occupying space.

Description

Technical Field

[0001] This utility model relates to the field of trailer frame manufacturing technology, specifically to an energy-absorbing trailer frame structure. Background Technology

[0002] An automobile is a vehicle that is powered by its own energy and can move without relying on tracks or electricity. In a broader sense, any vehicle driven by its own mechanical energy is generally called an automobile. With the improvement of people's living standards, people often choose to travel during their leisure time, and self-driving tours are often the preferred way to travel short distances outdoors. When traveling outdoors, people usually carry luggage, daily necessities, bicycles, etc. Since the trunk space of a car is limited, it is difficult to fit larger items such as bicycles. Therefore, cars are equipped with trailer racks at the rear to carry bicycles.

[0003] Currently, trailer racks are typically installed at the rear of vehicles for carrying bicycles. A trailer rack includes side beams and a top beam; the side beams connect to the vehicle body, and the top beam secures the bicycle. The top beam is parallel to the tailgate, and the side beams and top beam are arranged perpendicularly.

[0004] However, existing technologies have the following problems:

[0005] 1. The existing trailer rack does not have an energy-absorbing structure. When the trailer rack is involved in a minor collision, it will not only cause damage to the trailer rack, but also damage to the rear of the vehicle.

[0006] 2. The existing trailer rack cannot be folded, taking up a lot of space when not in use, causing some inconvenience for driving and parking. Utility Model Content

[0007] The purpose of this invention is to provide an energy-absorbing trailer frame structure to solve problems such as the lack of an energy-absorbing structure and the inability to fold.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an energy-absorbing trailer frame structure, comprising an L-shaped connecting plate, two mounting through holes at the front end of the L-shaped connecting plate, two energy-absorbing boxes at the rear end of the L-shaped connecting plate, a crash beam at the rear end of the energy-absorbing boxes, a hinge seat above the crash beam, a hinge column at the rear end of the hinge seat, a main mounting seat at the rear end of the hinge column, a side beam at each end of the main mounting seat, two wheel fixing components on each side beam, a top beam above the main mounting seat, and two handlebar fixing components fitted on the top beam.

[0009] As a further embodiment of this utility model: a connecting column is mounted at the rear end of the L-shaped connecting plate, and a connecting frame is fitted onto the connecting column. Both the connecting column and the connecting frame have mounting through holes. The connecting column and the connecting frame are fixedly connected by bolts and nuts. A connecting crossbeam is mounted above the connecting frame, and an energy-absorbing box is mounted at each of the left and right ends of the rear of the connecting crossbeam. The connecting column and the connecting frame are used to fix the position of the rear trailer frame, and the connecting crossbeam is used to mount the energy-absorbing boxes.

[0010] As a further embodiment of this utility model: the energy-absorbing box includes an outer energy-absorbing box, an inner energy-absorbing box is mounted at the rear end of the outer energy-absorbing box, the inner energy-absorbing box can slide on the inner wall of the outer energy-absorbing box, and the front end of the inner energy-absorbing box is fixedly connected to the inner end of the anti-collision beam. The outer energy-absorbing box and the inner energy-absorbing box cooperate to install internal components and position the entire energy-absorbing box.

[0011] As a further embodiment of this utility model: a left mounting plate is installed on the left inner wall of the energy-absorbing inner box; an elastic energy-absorbing column is installed on the right end of the left mounting plate; a movable column is installed on the right end of the elastic energy-absorbing column; a right mounting plate is installed on the right inner wall of the energy-absorbing outer box; four buffer members are installed on the left end of the right mounting plate; a circular groove is formed in the middle of each buffer member; the movable column is inserted into the circular groove; buffer square holes are opened on the outer side walls of each buffer member; buffer springs are installed on the outside of each buffer member; and the other end of each buffer spring is fixed to the inner wall of the energy-absorbing outer box. The energy-absorbing box is used to absorb the force generated by an impact, preventing damage to the vehicle body and trailer frame.

[0012] As a further embodiment of this invention: the right end of the hinge pin is mounted in the middle of the hinge seat. One end of the hinge seat has a through hole, and the other end has a threaded hole. The front end of the hinge pin has a through hole. One end of the hinge seat is fitted with an adjusting bolt. The adjusting bolt passes through the through holes of the hinge pin and the hinge seat and connects to the threaded hole at the other end of the hinge seat. The adjusting bolt is used to fix the hinge pin and the hinge seat. The hinge pin and the hinge seat are rotatably fitted to accommodate the trailer frame.

[0013] As a further embodiment of this invention: the wheel fixing assembly includes a side sliding frame, one end of which is equipped with a side fastening bolt, and the other end of which is equipped with a wheel mounting seat. A fixing rope is mounted on the top of the wheel mounting seat. The wheel fixing assembly is used to fix a bicycle wheel.

[0014] As a further embodiment of this invention: the handlebar fixing assembly includes a top sliding frame, one end of which is equipped with a top fastening bolt, and the other end of which is equipped with a fixing hook. The handlebar fixing assembly is used in conjunction with a rope to secure the handlebars.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, by setting up an energy-absorbing box, when a small collision occurs behind the vehicle while driving, the elastic energy-absorbing column inside the energy-absorbing box is compressed, and at the same time the moving column moves forward to compress the buffer component. The buffer square hole on the buffer component is deformed, and at the same time the buffer springs around it are compressed. The force caused by the collision is filtered out by the elasticity of the buffer spring, buffer component and elastic energy-absorbing column, preventing damage to the trailer frame and the car.

[0017] 2. In this utility model, by setting a hinge seat, adjusting bolts and hinge columns, the whole can be rotated and folded around the hinge seat, and can be stored when the trailer frame is not in use, thus preventing it from taking up space. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the connecting column and connecting frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the energy-absorbing box and anti-collision beam of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the energy-absorbing box of this utility model.

[0022] In the diagram: 1. L-shaped connecting plate; 2. Connecting column; 3. Connecting frame; 4. Connecting crossbeam; 5. Energy-absorbing box; 501. Outer energy-absorbing box; 502. Inner energy-absorbing box; 503. Left mounting plate; 504. Elastic energy-absorbing column; 505. Movable column; 506. Buffer component; 507. Buffer square hole; 508. Buffer spring; 509. Right mounting plate; 6. Anti-collision beam; 7. Hinge seat; 8. Adjusting bolt; 9. Hinge column; 10. Main mounting seat; 11. Side beam; 12. Wheel fixing assembly; 1201. Side sliding frame; 1202. Side fastening bolt; 1203. Wheel mounting seat; 1204. Fixing rope; 13. Top beam; 14. Handlebar fixing assembly; 1401. Top sliding frame; 1402. Top fastening bolt; 1403. Fixing hook. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4In this embodiment of the utility model, an energy-absorbing trailer frame structure includes an L-shaped connecting plate 1. The front end of the L-shaped connecting plate 1 is equipped with two mounting through holes, and the rear end of the L-shaped connecting plate 1 is equipped with two energy-absorbing boxes 5. The rear end of the energy-absorbing boxes 5 is equipped with a crash beam 6. A hinge seat 7 is installed above the crash beam 6. A hinge column 9 is installed at the rear end of the hinge seat 7. A main mounting seat 10 is installed at the rear end of the hinge column 9. A side beam 11 is installed at each end of the main mounting seat 10. Two wheel fixing components 12 are installed on the side beams 11. A top beam 13 is installed above the main mounting seat 10. Two handlebar fixing components 14 are fitted on the top beam 13. By setting up the energy-absorbing box 5, when a small collision occurs from behind while driving, the elastic energy-absorbing column 504 inside the energy-absorbing box 5 is compressed, and at the same time, the movable column 505 moves forward to compress the buffer member 506. The buffer square hole 507 on the buffer member 506 is deformed, and the buffer springs 508 around it are compressed. The force of the impact is filtered out by the elasticity of the buffer springs 508, the buffer member 506 and the elastic energy-absorbing column 504, preventing damage to the trailer frame and the car. By setting up the hinge seat 7, adjusting bolt 8 and hinge column 9, the whole can be rotated and folded around the hinge seat 7, and can be stored when the trailer frame is not in use, preventing it from taking up space.

[0025] The L-shaped connecting plate 1 has a connecting post 2 at its rear end, and a connecting frame 3 is fitted onto the connecting post 2. Both the connecting post 2 and the connecting frame 3 have through holes for installation. The connecting post 2 and the connecting frame 3 are fixedly connected by bolts and nuts. A connecting beam 4 is installed above the connecting frame 3, and an energy-absorbing box 5 is installed at each of the left and right ends of the rear of the connecting beam 4. The connecting post 2 and the connecting frame 3 are used to fix the position of the rear trailer frame, and the connecting beam 4 is used to install the energy-absorbing box 5.

[0026] The energy-absorbing box 5 includes an outer energy-absorbing box 501, with an inner energy-absorbing box 502 mounted at the rear end of the outer energy-absorbing box 501. The inner energy-absorbing box 502 can slide on the inner wall of the outer energy-absorbing box 501, and its front end is fixedly connected to the inner end of the anti-collision beam 6. The outer energy-absorbing box 501 and the inner energy-absorbing box 502 work together to house the internal components and define the position of the entire energy-absorbing box 5.

[0027] The inner wall of the energy-absorbing inner box 502 is fitted with a left mounting plate 503. An elastic energy-absorbing column 504 is mounted on the right end of the left mounting plate 503, and a movable column 505 is mounted on the right end of the elastic energy-absorbing column 504. The inner wall of the outer energy-absorbing box 501 is fitted with a right mounting plate 509. Four buffer members 506 are mounted on the left end of the right mounting plate 509. A circular groove is formed in the middle of each buffer member 506, and the movable column 505 is inserted into the circular groove. Buffer square holes 507 are opened on both outer side walls of the buffer members 506. A buffer spring 508 is mounted on the outside of the buffer member 506, and the other end of the buffer spring 508 is fixed to the inner wall of the outer energy-absorbing box 501. The energy-absorbing box 5 is used to absorb the force generated by the impact, preventing damage to the vehicle body and trailer frame.

[0028] The right end of the hinge post 9 is installed in the middle of the interior of the hinge seat 7. One end of the hinge seat 7 has a through hole, and the other end has a threaded hole. The front end of the hinge post 9 has a through hole, and one end of the hinge seat 7 is equipped with an adjusting bolt 8. The adjusting bolt 8 passes through the through holes of the hinge post 9 and the hinge seat 7 and connects to the threaded hole at the other end of the hinge seat 7. The adjusting bolt 8 is used to fix the hinge post 9 and the hinge seat 7. The hinge post 9 and the hinge seat 7 are rotatably fitted to accommodate the trailer frame.

[0029] The wheel fixing assembly 12 includes a side sliding frame 1201, one end of which is equipped with a side fastening bolt 1202, and the other end of which is equipped with a wheel mounting seat 1203. A fixing rope 1204 is attached to the top of the wheel mounting seat 1203. The wheel fixing assembly 12 is used to fix bicycle wheels.

[0030] The handlebar fixing assembly 14 includes a top sliding frame 1401, one end of which is fitted with a top fastening bolt 1402, and the other end of which is fitted with a fixing hook 1403. The handlebar fixing assembly 14 is used in conjunction with a rope to secure the handlebars.

[0031] The working principle and usage process of this utility model are as follows: After the trailer rack is installed, two bicycles can be placed on it. The front and rear wheels of the first bicycle are placed into the wheel mounting seats 1203 at the left and right ends, respectively. The wheels are secured with fixing ropes 1204. The handlebars are secured by wrapping the ropes around the fixing hooks 1403. During fixation, the distance between the wheel fixing components 12 and the handlebar fixing components 14 can be adjusted by adjusting the side fastening bolts 1202 and the top fastening bolts 1402 to better accommodate the bicycle. When placing the second bicycle, the other two wheel fixing components 12 and handlebar fixing components 14 are installed symmetrically with the previous ones, offset from the previous ones. When there is no need to place bicycles, the hinge column 9 can be folded upwards by adjusting the adjusting bolts 8. By setting up the energy-absorbing box 5, when a small collision occurs from behind while driving, the elastic energy-absorbing column 504 inside the energy-absorbing box 5 is compressed, and at the same time, the movable column 505 moves forward to compress the buffer member 506. The buffer square hole 507 on the buffer member 506 is deformed, and the buffer springs 508 around it are compressed. The force of the impact is filtered out by the elasticity of the buffer springs 508, the buffer member 506 and the elastic energy-absorbing column 504, preventing damage to the trailer frame and the car. By setting up the hinge seat 7, adjusting bolt 8 and hinge column 9, the whole can be rotated and folded around the hinge seat 7, and can be stored when the trailer frame is not in use, preventing it from taking up space.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An energy-absorbing trailer frame structure, comprising an L-shaped connecting plate (1), characterized in that: The L-shaped connecting plate (1) has two mounting through holes at its front end and two energy-absorbing boxes (5) at its rear end. The energy-absorbing box (5) has a crash beam (6) at its rear end and a hinge seat (7) above the crash beam (6). The hinge seat (7) has a hinge column (9) at its rear end and a main mounting seat (10) at its rear end. The main mounting seat (10) has a side beam (11) at each end and two wheel fixing components (12) on each side beam (11). The main mounting seat (10) has a top beam (13) above it and two handlebar fixing components (14) on the top beam (13).

2. The energy-absorbing trailer frame structure according to claim 1, characterized in that: The L-shaped connecting plate (1) is equipped with a connecting column (2) at its rear end. A connecting frame (3) is fitted on the connecting column (2). Both the connecting column (2) and the connecting frame (3) have through holes for installation. The connecting column (2) and the connecting frame (3) are fixedly connected by bolts and nuts. A connecting beam (4) is installed above the connecting frame (3). An energy-absorbing box (5) is installed at each of the left and right ends of the connecting beam (4).

3. The energy-absorbing trailer frame structure according to claim 1, characterized in that: The energy-absorbing box (5) includes an energy-absorbing outer box (501), and an energy-absorbing inner box (502) is installed at the rear end of the energy-absorbing outer box (501). The energy-absorbing inner box (502) can slide on the inner wall of the energy-absorbing outer box (501), and the front end of the energy-absorbing inner box (502) is fixedly connected to the inner end of the anti-collision beam (6).

4. The energy-absorbing trailer frame structure according to claim 3, characterized in that: The inner wall of the left end of the energy-absorbing inner box (502) is equipped with a left mounting plate (503), the right end of the left mounting plate (503) is equipped with an elastic energy-absorbing column (504), the right end of the elastic energy-absorbing column (504) is equipped with a movable column (505), the inner wall of the right end of the energy-absorbing outer box (501) is equipped with a right mounting plate (509), the left end of the right mounting plate (509) is equipped with four buffer pieces (506), the buffer pieces (506) form a circular groove in the middle, the movable column (505) is inserted into the circular groove, the two outer side walls of the buffer pieces (506) are provided with buffer square holes (507), the buffer pieces (506) are equipped with buffer springs (508) on the outside, and the other end of the buffer springs (508) is fixed to the inner wall of the energy-absorbing outer box (501).

5. The energy-absorbing trailer frame structure according to claim 2, characterized in that: The right end of the hinge pin (9) is installed in the middle of the hinge seat (7). The hinge seat (7) has a through hole at one end and a threaded hole at the other end. The front end of the hinge pin (9) has a through hole. One end of the hinge seat (7) is equipped with an adjusting bolt (8). The adjusting bolt (8) passes through the through holes of the hinge pin (9) and the hinge seat (7) and connects to the threaded hole at the other end of the hinge seat (7).

6. The energy-absorbing trailer frame structure according to claim 1, characterized in that: The wheel fixing assembly (12) includes a side sliding frame (1201), one end of which is equipped with a side fastening bolt (1202), and the other end of which is equipped with a wheel mounting seat (1203). A fixing rope (1204) is installed on the top of the wheel mounting seat (1203).

7. The energy-absorbing trailer frame structure according to claim 6, characterized in that: The handlebar fixing assembly (14) includes a top sliding frame (1401), one end of which is equipped with a top fastening bolt (1402), and the other end of which is equipped with a fixing hook (1403).

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