Adjustable backrest for retro motorcycle

Abstract

The utility model relates to a motorcycle backrest, in particular to an adjustable backrest for a retro motorcycle. The utility model provides an improved adjustable backrest for a retro motorcycle. The device comprises a frame, a mounting seat, a backrest, an adjusting part and the like, the detachable mounting seat is mounted on the rear portion of the frame, the backrest is mounted on the mounting seat through the adjusting part, and the height of the backrest can be correspondingly adjusted by adjusting the position of the adjusting part. The purpose of conveniently adjusting the height of the backrest can be achieved through a height adjusting structure composed of a dovetail groove in a sliding rail, an adjusting plate and a locking column; the purpose of quickly adjusting the inclination angle of the backrest can be achieved through an angle adjusting structure consisting of a clamping seat, a positioning chuck, a movable chuck, an elastic piece and a limiting bolt; the device not only is simple and compact in structure, but also is high in fusion degree with the cushion and the frame, thereby being beneficial to improving the overall attractiveness of the retro motorcycle.

Description

Technical Field

[0001] This utility model relates to a motorcycle backrest, specifically an adjustable backrest for a retro motorcycle. Background Technology

[0002] Retro motorcycles are beloved by many motorcycle enthusiasts for their unique design and rich cultural heritage. These motorcycles typically mimic design elements from early motorcycles while incorporating modern technology and materials, combining classic aesthetics with contemporary performance. Furthermore, most retro motorcycles feature backrests designed for easy removal and installation, allowing owners to quickly change them to suit different riding needs or occasions.

[0003] A utility model patent for an adjustable backrest for motorcycles (authorization announcement number: CN221091059U) published on the China Patent Network achieves the function of adjusting the backrest, but the mechanical parts in the device have a relatively complex structure, the overall layout is not compact enough, it occupies a large space in the motorcycle, and the appearance is not classic and elegant enough.

[0004] To address this issue, an improved adjustable backrest for retro motorcycles is proposed, aiming to solve the aforementioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing motorcycle backrests, such as complex mechanical structure and insufficient overall layout, the technical problem of this utility model is to provide an improved adjustable backrest for retro motorcycles.

[0006] An adjustable backrest for a retro motorcycle includes a frame, a mounting base, and a backrest. The seat cushion is mounted on the frame. A detachable mounting base is mounted on the rear of the frame. The backrest also includes an adjusting component and a locking component. The backrest is mounted on the mounting base via the adjusting component. The height of the backrest can be adjusted by adjusting the position of the adjusting component. The adjusting component includes a fixing sleeve, a connecting shaft, an adjusting plate, a slide rail, a fixing plate, and a locking pin. A pair of fixing sleeves are provided on the mounting base, and a connecting shaft passes between the pair of fixing sleeves. An adjusting plate capable of rotating and adjusting the angle is fitted in the middle of the connecting shaft. A slide rail capable of sliding up and down and adjusting the height is fitted on the upper part of the adjusting plate. A fixing plate is connected to the back of the slide rail. The backrest is mounted on the fixing plate. A locking pin threaded through the adjusting plate abuts against the slide rail. A locking component for locking and limiting the adjusting plate is provided between the fixing sleeve and the connecting shaft.

[0007] Particularly preferred is that the locking component includes a locking seat, a positioning chuck, a movable chuck, and an elastic element. A set of locking seats is connected to the lower part of the adjusting plate. Each set of locking seats is movably sleeved on the connecting shaft. A positioning chuck is fitted onto one end of the connecting shaft, and the positioning chuck can engage with one of the locking seats on one side. A movable chuck is movably fitted onto the other end of the connecting shaft, and the movable chuck can engage with the locking seat on the other side. An elastic element is connected between the movable chuck and one of the fixed sleeves on one side, and the elastic element is sleeved on the connecting shaft.

[0008] Preferably, the side of the backrest closest to the seat cushion has an arc-shaped design.

[0009] Preferably, the number of locking pins is two, and the two locking pins are designed to be distributed vertically.

[0010] Particularly preferred is the inclusion of a limiting bolt, which is threaded onto a fixed sleeve near the elastic element and can abut against the movable chuck.

[0011] Particularly preferred is the inclusion of a protective sleeve, with one end of the connecting shaft fitted with the protective sleeve, and the protective sleeve located between the positioning chuck and the fixing sleeve.

[0012] Beneficial effects: The height adjustment structure, consisting of the dovetail groove on the slide rail, the adjusting plate, and the locking pin, allows for convenient adjustment of the backrest height; the angle adjustment structure, consisting of the card seat, positioning chuck, movable chuck, elastic element, and limit bolt, allows for quick adjustment of the backrest tilt angle; this device is not only simple and compact in structure, but also integrates well with the seat and frame, thus enhancing the overall aesthetics of the retro motorcycle. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0015] Figure 3 This is a schematic diagram of the connection structure between the adjusting component and the backrest of this utility model.

[0016] Figure 4 This is a structural separation diagram of the present invention.

[0017] Figure 5 This is a three-dimensional structural diagram of the card slot component of this utility model.

[0018] The markings in the attached diagram are: 1: frame, 2: mounting base, 3: fixing sleeve, 4: connecting shaft, 5: adjusting plate, 6: slide rail, 7: fixing plate, 8: backrest, 9: locking post, 10: card seat, 11: positioning chuck, 12: movable chuck, 13: elastic element, 14: limit bolt, 15: protective sleeve, a: seat cushion. Detailed Implementation

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0020] Example: This utility model provides an adjustable backrest for a retro motorcycle, see below. Figures 1-5 As shown, the device includes a frame 1, a mounting base 2, a backrest 8, adjusting components, and locking components. The seat cushion a is mounted on the frame 1. A detachable mounting base 2 is mounted on the rear of the frame 1, facilitating the installation of this device on various types of retro motorcycles, making it highly practical. The backrest 8 is mounted on the mounting base 2 via adjusting components. Adjusting the height of the backrest 8 is quick and easy by moving the adjusting components. The side of the backrest 8 closest to the seat cushion a has an arc-shaped design to fit the lumbar region, improving passenger comfort. The adjusting components include a fixing sleeve 3, a connecting shaft 4, an adjusting plate 5, a slide rail 6, a fixing plate 7, and a locking pin 9. The mounting base 2 has a pair of fixing sleeves 3, with a connecting shaft 4 passing between them. An adjusting plate 5, capable of rotating to adjust the angle, is fitted in the middle of the connecting shaft 4. By adjusting the tilt angle of the rotating adjustment plate 5, the angle of the backrest 8 can be quickly adjusted accordingly. The upper part of the adjustment plate 5 is fitted with a slide rail 6 that can slide up and down to adjust the height. The dovetail groove on the slide rail 6 can limit the adjustment plate 5 and prevent it from falling off. A fixing plate 7 is connected to the back of the slide rail 6, and the backrest 8 is installed on the fixing plate 7. A locking pin 9 is threaded through the adjustment plate 5 and can abut against the slide rail 6. By tightening the locking pin 9 so that its inner end abuts against the slide rail 6, it can limit the slide rail 6, the fixing plate 7 and the backrest 8. There are two locking pins 9, and the two locking pins 9 are designed to be distributed vertically, which is conducive to quick locking and fixing when the height of the backrest 8 is adjusted upward or downward. A locking component is provided between the fixing sleeve 3 and the connecting shaft 4. The locking component can quickly lock and limit the adjustment plate 5.

[0021] Further, see Figures 2-5As shown, the locking component includes a locking seat 10, a positioning chuck 11, a movable chuck 12, and an elastic element 13. A set of locking seats 10 is connected to the lower part of the adjusting plate 5. The set of locking seats 10 are movably sleeved on the connecting shaft 4. The positioning chuck 11 is sleeved on one end of the connecting shaft 4 and can engage with the locking seat 10 on one side. The movable chuck 12 is movably sleeved on the other end of the connecting shaft 4 and can engage with the locking seat 10 on the other side. An elastic element 13 is connected between the movable chuck 12 and the fixed sleeve 3 on one side. The elastic element 13 is sleeved on the connecting shaft 4 and is a compression spring used to provide clamping force to the movable chuck 12.

[0022] Further, see Figures 2-5 As shown, it also includes a limit bolt 14. The limit bolt 14 is threaded through the fixed sleeve 3 near the elastic element 13, and the limit bolt 14 can abut against the movable chuck 12, which helps to enhance the stability of the engagement between the movable chuck 12 and the chuck seat 10.

[0023] In addition, see Figures 2-5 As shown, it also includes a protective sleeve 15. One end of the connecting shaft 4 is fitted with a protective sleeve 15, and the protective sleeve 15 is located between the positioning chuck 11 and the fixing sleeve 3. The protective sleeve 15 is made of rubber and can play a certain decorative role to enhance the overall integration of the device.

[0024] When adjusting the height of the backrest 8, loosen the upper and lower locking pins 9 to disengage them from the slide rail 6. Then, push the backrest 8 up or down to easily adjust the height. Afterward, tighten the locking pins 9 to reset them so that their inner ends abut against the slide rail 6, thus securing the slide rail 6, fixing plate 7, and backrest 8. When adjusting the tilt angle of the backrest 8, first loosen the limit bolt 14 to disengage it from the movable chuck 12. Then, slide the movable chuck 12 outward to separate it from the corresponding seat 10. Slightly pull the backrest 8 towards one side of the movable chuck 12 to separate the seat 10 on the other side from the positioning chuck 11. Then push... The backrest 8 can be rotated and swung around the connecting shaft 4, allowing for convenient adjustment of its tilt angle. After the backrest 8 is adjusted, the movable chuck 12 is released, and the elastic force of the elastic element 13 pushes the movable chuck 12 back to its original position, so that the movable chuck 12 can abut and engage with the corresponding chuck seat 10. Then, the limit bolt 14 is reset, so that the limit bolt 14 abuts against the movable chuck 12. In this way, through the engagement of the chuck seat 10 with the positioning chuck 11 and the movable chuck 12, the adjusting plate 5 can be locked and limited. This device is not only simple and compact in structure, but also has a high degree of integration with the seat a and the frame 1, which helps to improve the overall aesthetics of the retro motorcycle.

[0025] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. An adjustable backrest for a retro motorcycle, comprising a frame (1), a mounting base (2), and a backrest (8), wherein a seat cushion (a) is mounted on the frame (1), and a detachable mounting base (2) is mounted on the rear of the frame (1), characterized in that: It also includes adjusting components and locking components. A backrest (8) is mounted on the mounting base (2) via the adjusting components. The height of the backrest (8) can be adjusted by adjusting the position of the adjusting components. The adjusting components include a fixing sleeve (3), a connecting shaft (4), an adjusting plate (5), a slide rail (6), a fixing plate (7), and a locking pin (9). A pair of fixing sleeves (3) are provided on the mounting base (2), and a connecting shaft (4) passes through the pair of fixing sleeves (3). The connecting shaft (4) contains... The upper part of the adjustable plate (5) is fitted with an adjustable plate (5) that can be rotated to adjust the angle. The upper part of the adjustable plate (5) is fitted with a slide rail (6) that can be slid up and down to adjust the height. The back of the slide rail (6) is connected to a fixing plate (7). The backrest (8) is installed on the fixing plate (7). The adjustable plate (5) is threaded with a locking post (9) that can abut against the slide rail (6). A locking member for locking and limiting the adjustable plate (5) is provided between the fixing sleeve (3) and the connecting shaft (4).

2. The adjustable backrest for a retro motorcycle according to claim 1, characterized in that: The locking component includes a locking seat (10), a positioning chuck (11), a movable chuck (12), and an elastic element (13). A set of locking seats (10) is connected to the lower part of the adjusting plate (5). All of the locking seats (10) are movably sleeved on the connecting shaft (4). One end of the connecting shaft (4) is fitted with a positioning chuck (11), and the positioning chuck (11) can engage with the locking seat (10) on one side. The other end of the connecting shaft (4) is movably fitted with a movable chuck (12), and the movable chuck (12) can engage with the locking seat (10) on the other side. An elastic element (13) is connected between the movable chuck (12) and the fixed sleeve (3) on one side, and the elastic element (13) is sleeved on the connecting shaft (4).

3. The adjustable backrest for a retro motorcycle according to claim 1, characterized in that: The backrest (8) has an arc-shaped design on one side near the seat cushion (a).

4. The adjustable backrest for a retro motorcycle according to claim 1, characterized in that: The number of locking pins (9) is 2, and the 2 locking pins (9) are designed to be distributed vertically.

5. An adjustable backrest for a retro motorcycle according to claim 2, characterized in that: It also includes a limit bolt (14), which is threaded through the fixed sleeve (3) near the elastic member (13) and can abut against the movable chuck (12).

6. An adjustable backrest for a retro motorcycle according to claim 2, characterized in that: It also includes a protective sleeve (15), one end of the connecting shaft (4) is fitted with the protective sleeve (15), and the protective sleeve (15) is located between the positioning chuck (11) and the fixing sleeve (3).

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