Adjustable backrest frame of motorcycle

Abstract

The utility model relates to the technical field of motorcycles, and discloses an adjustable backrest frame of a motorcycle, which comprises a seat plate, a backrest is hinged to the right side of the seat plate, an adjusting component is arranged below the seat plate and comprises a sliding rail, the sliding rail is fixedly connected with the lower part of the seat plate, a sliding seat is slidably connected below the sliding rail, and the sliding seat is fixedly connected with the seat plate. A first rotating shaft is rotationally connected to the front face of the sliding seat, a connecting strip is fixedly connected to the upper portion of the first rotating shaft, the backrest can be erected or put down conveniently through the adjusting assembly, the elastic assembly can play a role in auxiliary adjustment on the adjusting assembly, the backrest is kept in the current state after being erected or put down, and the effect of conveniently and rapidly adjusting the backrest is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of motorcycles, in particular to an adjustable rear backrest frame of a motorcycle. Background Art

[0002] A motorcycle is a two-wheeled or three-wheeled vehicle driven by a gasoline engine and steered by a handlebar. It is light, flexible, and fast. It is widely used for patrols, passenger and cargo transportation, and is also used as a sports equipment. In general, motorcycles are divided into street motorcycles, road racing motorcycles, off-road motorcycles, cruisers, touring motorcycles, etc. The rear backrest of a motorcycle is a part of the motorcycle.

[0003] For example, the Chinese patent publication number CN210653458U, "An adjustable rear backrest frame for a motorcycle", belongs to the technical field of motorcycles, and discloses an adjustable rear backrest frame for a motorcycle, including a base plate, a seat cushion is installed on the top of the base plate, and a second bracket is installed on the bottom of the base plate, first brackets are installed on both sides of the base plate, and a back plate is rotatably connected to the top of the base plate near the seat cushion, fixing ropes are installed on both sides of the back plate, one end of the fixing rope is installed with a hook, the back plate is slidably connected to a fixing plate inside, and an adjusting bolt is screwed and connected between the back plate and the fixing plate. The utility model fixes the fixing plate to the position required by the user on the back plate by tightening the adjusting bolt, thereby extending the fixing plate to the length required by the user, supporting the user's back through the back plate and the fixing plate, allowing the device to be adjusted according to the user's height, improving the safety of the user when using it, and improving the use range of the device.

[0004] However, in actual use, it is not convenient to adjust quickly. When the back plate needs to be adjusted, the hook on the fixing rope needs to correspond to the first bracket and the second bracket. The operation is complicated and it is not convenient to adjust the back plate quickly. Therefore, an adjustable rear backrest frame for a motorcycle is proposed to solve the above-mentioned problem. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an adjustable rear backrest frame for a motorcycle in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical scheme adopted by the utility model is as follows: an adjustable rear backrest frame of a motorcycle comprises a seat plate, the right side of the seat plate is hinged with a backrest, and an adjusting component is arranged under the seat plate, and the adjusting component comprises a slide rail, the slide rail is fixedly connected to the bottom of the seat plate, a sliding seat is slidably connected to the bottom of the slide rail, the front side of the sliding seat is rotatably connected with a first rotating shaft, the top of the first rotating shaft is fixedly connected with a connecting strip, the top of the connecting strip is fixedly connected with a second rotating shaft, the second rotating shaft is rotatably connected to the front side of the backrest, an elastic component is arranged on the right side of the sliding seat, and a corresponding component is arranged on the left side of the sliding seat. When in use, the passenger of the rear seat of the motorcycle is supported by the backrest. When the backrest needs to be laid down, the fixing of the fixing component to the corresponding component is first released, so that the sliding seat can slide on the slide rail. By directly flipping the backrest downward to lay it down, the backrest will drive the connecting strip to pull to the right through the second rotating shaft, and the connecting strip will pull the sliding seat through the first rotating shaft to make it slide to the right on the slide rail, and at this time the first spring will be compressed.

[0007] Preferably, the elastic component includes a support plate, which is fixedly connected to the bottom of the seat plate, and a first spring is elastically connected between the support plate and the sliding seat. When the connecting strip moves to below the hinge point between the seat plate and the backrest as the backrest flips, the first spring will release the elastic force to push the sliding seat to the left, and the sliding seat will pull the first rotating shaft to make the connecting strip drive the second rotating shaft until the backrest is completely folded down, thereby facilitating quick adjustment.

[0008] Preferably, the number of the first springs is two, the left ends of the two first springs are fixedly connected to the right side of the sliding seat, and the right ends of the two first springs are fixedly connected to the left side of the support plate.

[0009] Preferably, the corresponding component includes an insertion seat, the insertion seat is fixedly connected to the left side of the sliding seat, a support plate is arranged on the front side of the insertion seat, the support plate is fixedly connected to the bottom of the seat plate, and a fixing component is arranged on the front side of the support plate. As the backrest is erected or laid down to make the sliding seat slide on the slide rail, the positions of the two sockets on the insertion seat on the sliding seat will correspond to the insertion strips respectively. At this time, the top plate is released so that the second spring applies a pulling force to pull the top plate toward the support plate, thereby driving the insertion strip to be inserted into the socket on the insertion seat to fix the insertion seat, thereby preventing the sliding seat from sliding on the slide rail, thereby achieving the effect of fixing the backrest in the erected or laid down state.

[0010] Preferably, the fixing assembly includes an insertion strip, which is plugged into the front face of the insertion seat, and movably penetrates the front face of the support sheet, and a top sheet is fixedly connected to the front face of the insertion strip, and a second spring is elastically connected between the top sheet and the support sheet, and the second spring is stretched by pulling the top sheet to pull the insertion strip out from the front face of the insertion seat, and when the sliding seat slides on its slide rail, the sliding seat drives the insertion seat to slide together.

[0011] Preferably, a mounting frame is fixedly connected below the seat plate, and a cushion is fixedly connected above the seat plate and on the left side of the backrest.

[0012] The utility model adopts the above technical solution, which can bring the following beneficial effects:

[0013] 1. The adjustable rear backrest frame of a motorcycle can easily stand up or lay down the backrest through the adjustment component. The elastic component can assist the adjustment component in adjusting the backrest so that the backrest can maintain the current state after standing up or laying down, which is convenient for quickly adjusting the backrest.

[0014] 2. The adjustable rear backrest frame of the motorcycle can limit the position of the backrest when it is standing up or lying down through the corresponding components. At this time, the corresponding components are fixed by the fixing components so that the backrest is fixed in the standing up or lying down state, thereby achieving the effect of facilitating the fixing of the backrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the utility model's overall structure with the backrest in a folded-down state;

[0017] Figure 3 This is a bottom view of the overall structure of the utility model;

[0018] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure: 1. seat plate; 2. backrest; 3. adjustment component; 301. slide rail; 302. sliding seat; 303. first rotating shaft; 304. connecting strip; 305. second rotating shaft; 4. elastic component; 401. support plate; 402. first spring; 5. corresponding component; 501. insertion seat; 502. support sheet; 6. fixing component; 601. insertion strip; 602. top sheet; 603. second spring; 7. mounting frame; 8. cushion. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4An embodiment of the utility model is: an adjustable rear backrest frame of a motorcycle, comprising a seat plate 1, a backrest 2 is hinged on the right side of the seat plate 1, a mounting frame 7 is fixedly connected to the bottom of the seat plate 1, a cushion 8 is fixedly connected to the top of the seat plate 1 and the left side of the backrest 2, an adjustment component 3 is arranged below the seat plate 1, the adjustment component 3 comprises a slide rail 301, the cross-sectional shape of the slide rail 301 is trapezoidal, the slide rail 301 is fixedly connected to the bottom of the seat plate 1, a slide seat 302 is slidably connected to the bottom of the slide rail 301, a dovetail groove adapted to the slide rail 301 is arranged above the slide seat 302, the front of the slide seat 302 is rotatably connected to a first rotating shaft 303, a connecting strip 304 is fixedly connected to the top of the first rotating shaft 303, and a connecting strip 304 is fixedly connected to the top of the connecting strip 304. A second rotating shaft 305 is fixedly connected, and the second rotating shaft 305 is rotationally connected to the front side of the backrest 2. There are two connecting strips 304, first rotating shaft 303 and second rotating shaft 305, which are symmetrically arranged on the two front sides of the backrest 2. An elastic component 4 is arranged on the right side of the sliding seat 302. The elastic component 4 includes a support plate 401, and the support plate 401 is fixedly connected to the bottom of the seat plate 1. A first spring 402 is elastically connected between the support plate 401 and the sliding seat 302. There are two first springs 402. The left ends of the two first springs 402 are fixedly connected to the right side of the sliding seat 302, and the right ends of the two first springs 402 are fixedly connected to the left side of the support plate 401. A corresponding component 5 is arranged on the left side of the sliding seat 302.

[0022] Working principle: when in use, first install the seat plate 1 on the motorcycle through the mounting frame 7, and support the passenger on the rear seat of the motorcycle through the backrest 2. When the backrest 2 needs to be laid down, first release the fixation of the fixing component 6 to the corresponding component 5, so that the sliding seat 302 can slide on the slide rail 301. This is done by directly flipping the backrest 2 downward to lay it down, and the backrest 2 will drive the connecting strip 304 to be pulled to the right through the second rotating shaft 305, and the connecting strip 304 will pull the sliding seat 302 through the first rotating shaft 303 to make it slide to the right on the slide rail 301. At this time, the first spring 402 will be compressed, and when the connecting strip 304 moves to below the hinge point between the seat plate 1 and the backrest 2 as the backrest 2 is flipped, the first spring 402 will release the elastic force to push the sliding seat 302 to the left, and the sliding seat 302 will pull the first rotating shaft 303 to make the connecting strip 304 drive the second rotating shaft 305 until the backrest 2 is completely laid down, so as to facilitate quick adjustment.

[0023] See also Figure 1-4On the basis of the above embodiment, in another embodiment of the utility model, the corresponding component 5 includes an insertion seat 501, and the insertion seat 501 is provided with two jacks adapted to the insertion strip 601, and the two jacks are respectively adapted to the positions of the insertion strip 601 when the backrest 2 is in an upright or laid down state, the insertion seat 501 is fixedly connected to the left side of the sliding seat 302, and a support sheet 502 is provided on the front of the insertion seat 501, and the support sheet 502 is fixedly connected to the bottom of the seat plate 1, and a fixing component 6 is provided on the front of the support sheet 502, and the fixing component 6 includes an insertion strip 601, and the insertion strip 601 is plugged into the front of the insertion seat 501, and the insertion strip 601 and the support sheet 502 are movably penetrated from the front, and a top sheet 602 is fixedly connected to the front of the insertion strip 601, and a second spring 603 is elastically connected between the top sheet 602 and the support sheet 502, and the second spring 603 will exert a pulling force to pull the top sheet 602 toward the support sheet 502 in a normal state.

[0024] Working principle: by pulling the top sheet 602, the second spring 603 is stretched to pull the insertion strip 601 out from the front of the insertion seat 501. When the sliding seat 302 slides on the slide rail 301, the sliding seat 302 will drive the insertion seat 501 to slide together. As the backrest 2 is erected or laid down, the sliding seat 302 slides on the slide rail 301, the positions of the two sockets on the insertion seat 501 on the sliding seat 302 will correspond to the insertion strip 601 respectively. At this time, the top sheet 602 is released to allow the second spring 603 to apply a pulling force to pull the top sheet 602 toward the supporting sheet 502, thereby driving the insertion strip 601 to be inserted into the socket on the insertion seat 501 to fix the insertion seat 501, thereby preventing the sliding seat 302 from sliding on the slide rail 301, thereby achieving the effect of fixing the backrest 2 in the erected or laid down state.

[0025] The utility model provides an adjustable rear backrest for a motorcycle. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications should also be regarded as the protection scope of the utility model. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. An adjustable rear backrest frame for a motorcycle, comprising a seat plate (1), characterized in that: The seat plate (1) is hingedly connected to a backrest (2) on the right side, and an adjustment component (3) is arranged below the seat plate (1). The adjustment component (3) comprises a slide rail (301), and the slide rail (301) is fixedly connected to the bottom of the seat plate (1). A sliding seat (302) is slidably connected below the slide rail (301). The front of the sliding seat (302) is rotatably connected to a first rotating shaft (303), and a connecting strip (304) is fixedly connected above the first rotating shaft (303). A second rotating shaft (305) is fixedly connected above the connecting strip (304), and the second rotating shaft (305) is rotatably connected to the front of the backrest (2). An elastic component (4) is arranged on the right side of the sliding seat (302), and a corresponding component (5) is arranged on the left side of the sliding seat (302).

2. The adjustable rear backrest frame of a motorcycle according to claim 1, characterized in that: The elastic component (4) comprises a support plate (401), the support plate (401) is fixedly connected to the bottom of the seat plate (1), and a first spring (402) is elastically connected between the support plate (401) and the sliding seat (302).

3. The adjustable rear backrest frame of a motorcycle according to claim 2, characterized in that: The number of the first springs (402) is two, the left ends of the two first springs (402) are fixedly connected to the right side of the sliding seat (302), and the right ends of the two first springs (402) are fixedly connected to the left side of the support plate (401).

4. The adjustable rear backrest frame of a motorcycle according to claim 3, characterized in that: The corresponding component (5) comprises an insertion seat (501), the insertion seat (501) is fixedly connected to the left side of the sliding seat (302), a support sheet (502) is arranged on the front of the insertion seat (501), the support sheet (502) is fixedly connected to the bottom of the seat plate (1), and a fixing component (6) is arranged on the front of the support sheet (502).

5. The adjustable rear backrest frame of a motorcycle according to claim 4, characterized in that: The fixing assembly (6) comprises an inserting strip (601), the inserting strip (601) is plugged into the inserting seat (501) at the front, the inserting strip (601) and the supporting sheet (502) are movably interlaced at the front, the inserting strip (601) is fixedly connected to the top sheet (602) at the front, and a second spring (603) is elastically connected between the top sheet (602) and the supporting sheet (502).

6. The adjustable rear backrest frame of a motorcycle according to claim 5, characterized in that: A mounting frame (7) is fixedly connected to the bottom of the seat plate (1), and a cushion (8) is fixedly connected to the top of the seat plate (1) and the left side of the backrest (2).

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