Adjustable backrest of electric vehicle

Abstract

The adjustable backrest of the electric vehicle comprises a seat cushion support, two symmetrical supporting plates are arranged on one side of the seat cushion support, guide grooves are formed in the middles of the sides, away from the seat cushion support, of the supporting plates, a movable plate is inserted into the middles of the two guide grooves, and a fixed plate is arranged on the side, close to the supporting plates, of the seat cushion support. Connecting plates are arranged at the two ends of the side, close to the fixed plate, of the movable plate, the sides, away from the movable plate, of the connecting plates penetrate through the fixed plate to be fixedly connected with the back plate, two fixing blocks are arranged on the two sides of the lower portion of the movable plate, positioning rods are inserted into the middles of the two fixing blocks, and a positioning plate is arranged on the side, close to the seat cushion support, of the lower portion of the supporting plate. And a plurality of positioning holes which are distributed at equal intervals are formed in the positioning plate. The adjustable backrest is simple in structure, the overall width of the electric vehicle can be adjusted by adjusting the position of the backrest, and the riding comfort of passengers is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to an adjustable backrest for an electric vehicle. Background Art

[0002] Nowadays, there are more and more electric vehicles, which are gradually replacing bicycles. Every household has an electric vehicle, which is convenient for going out. Generally, an electric vehicle can carry two to three people, and a backrest is set on the back of the rear seat to effectively prevent the rear passengers from falling during riding. However, the current backrest is generally installed on the trunk or is an independently designed fixed structure that cannot be adjusted. Once the passenger is fat, it will be crowded to sit in the back, which affects the passenger's riding comfort. For this reason, we proposed an adjustable backrest for an electric vehicle. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an adjustable backrest for an electric vehicle. The utility model solves the problem that the current backrest is generally installed on the trunk or has an independently designed fixed structure that cannot be adjusted. Once the passenger is fat, it is crowded to sit in the back, thus affecting the passenger's riding comfort.

[0004] The utility model provides an adjustable backrest for an electric vehicle, comprising a seat cushion bracket, wherein two symmetrical support plates are provided on one side of the seat cushion bracket, a guide groove is provided in the middle of the support plate on a side away from the seat cushion bracket, a movable plate is plugged in the middle of the two guide grooves, a fixed plate is provided on the side of the seat cushion bracket close to the support plate, connecting plates are provided at both ends of the side of the movable plate close to the fixed plate, the connecting plate passes through the fixed plate and is fixedly connected to the back plate on the side away from the movable plate, two fixed blocks are provided on both sides below the movable plate, positioning rods are plugged in the middle of the two fixing blocks, a positioning plate is provided below the support plate close to the seat cushion bracket, and a plurality of positioning holes arranged equidistantly are provided on the positioning plate.

[0005] In the above solution, the positioning rod and the positioning hole are in the same horizontal plane, and the end of the positioning rod close to the positioning hole is set as an arc surface.

[0006] In the above solution, the positioning rod is located between two fixed blocks and a limiting block is provided, and the positioning rod is located between the fixed block and the limiting block and a spring is sleeved thereon.

[0007] In the above solution, a pull rod is provided on the side of the positioning rod away from the support plate.

[0008] In the above solution, a cushion is provided on one side of the back plate close to the seat cushion bracket.

[0009] In the above solution, the back plate and the cushion are fixedly connected by bolts.

[0010] The advantages and beneficial effects of the utility model are as follows: the utility model provides an adjustable backrest for an electric vehicle, the movable plate can move horizontally inside the guide groove, when the back plate is pulled, the movable plate is also moved by the transmission of the connecting plate, when the movable plate moves to a suitable position, under the action of the spring elastic force, the spring pushes the limit block and the positioning rod to move, so that the positioning rod is inserted into the positioning hole, and the movable plate and the seat cushion bracket can be stably connected through the mutual cooperation between the positioning rod and the positioning hole. This kind of adjustable backrest has a simple structure and is easy to operate. By adjusting the position of the backrest, the overall width of the electric vehicle can be adjusted, which effectively improves the riding comfort of passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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.

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a bottom view of the utility model;

[0014] Figure 3 This is a schematic structural diagram of part A of the utility model.

[0015] In the figure: 1. Seat cushion bracket 2. Support plate 3. Guide groove 4. Movable plate

[0016] 5. Fixing plate 6. Connecting plate 7. Back plate 8. Fixing block

[0017] 9. Positioning rod 10. Positioning plate 11. Positioning hole 12. Limit block

[0018] 13. Spring 14. Pull rod 15. Cushion. DETAILED DESCRIPTION

[0019] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0020] like Figure 1-3As shown, the utility model is an adjustable backrest for an electric vehicle, comprising a seat cushion bracket 1, which can be fixedly installed on the body of the battery vehicle, one side of the seat cushion bracket 1 is provided with two symmetrical support plates 2, a guide groove 3 is opened in the middle of the support plate 2 away from the seat cushion bracket 1, a movable plate 4 is inserted in the middle of the two guide grooves 3, the movable plate 4 is movably connected to the support plate 2, and the movable plate 4 can reciprocate horizontally inside the guide groove 3, a fixed plate 5 is provided on the side of the seat cushion bracket 1 close to the support plate 2, connecting plates 6 are provided at both ends of the side of the movable plate 4 close to the fixed plate 5, the connecting plate 6 penetrates the fixed plate 5 and is fixedly connected to the back plate 7 on the side away from the movable plate 4, the connecting plate 6 is movably connected to the fixed plate 5, and two A fixing block 8 is provided, and a positioning rod 9 is inserted in the middle of the two fixing blocks 8. The positioning rod 9 is movably connected to the fixing block 8. A positioning plate 10 is provided on the side of the support plate 2 close to the seat cushion bracket 1 below. The positioning plate 10 is provided with a plurality of positioning holes 11 arranged at equal intervals. When the backrest position is adjusted, the positioning rod 9 is pulled to disengage the positioning rod 9 from the positioning hole 11. At this time, the movable plate 4 can move horizontally inside the guide groove 3. When the back plate 7 is pulled, the movable plate 4 is also moved through the transmission of the connecting plate 6. When the movable plate 4 moves to a suitable position, the positioning rod 9 is inserted into the positioning hole 11. Through the mutual cooperation between the positioning rod 9 and the positioning hole 11, the movable plate 4 and the seat cushion bracket 1 can be stably connected.

[0021] The positioning rod 9 and the positioning hole 11 are in the same horizontal plane, and the end of the positioning rod 9 close to the positioning hole 11 is set as an arc surface. The positioning rod 9 set on the arc surface makes it easier to insert the positioning rod 9 into the positioning hole 11.

[0022] The positioning rod 9 is located between the two fixed blocks 8 and is provided with a limit block 12. The positioning rod 9 is located between the fixed block 8 and the limit block 12 and is sleeved with a spring 13. When the positioning rod 9 is pulled, the positioning rod 9 drives the limit block 12 to move, and the limit block 12 squeezes the spring 13. When the positioning rod 9 moves to the same position as the positioning hole 11, under the action of the elastic force of the spring 13, the positioning rod 9 is automatically inserted into the positioning hole 11.

[0023] A pull rod 14 is provided on the side of the positioning rod 9 away from the support plate 2 . The setting of the pull rod 14 makes it easier to pull the positioning rod 9 .

[0024] A cushion 15 is provided on one side of the back plate 7 close to the seat cushion bracket 1 .

[0025] The back plate 7 and the cushion 15 are fixedly connected by bolts.

[0026] Specifically, in the utility model, when adjusting the position of the backrest, the positioning rod 9 is pulled to disengage the positioning rod 9 from the positioning hole 11, and the limit block 12 squeezes the spring 13. At this time, the movable plate 4 can move horizontally inside the guide groove 3. When the back plate 7 is pulled, the movable plate 4 is also moved through the transmission of the connecting plate 6. When the movable plate 4 moves to the appropriate position, under the action of the elastic force of the spring 13, the spring 13 pushes the limit block 12 and the positioning rod 9 to move, so that the positioning rod 9 is inserted into the positioning hole 11. Through the mutual cooperation between the positioning rod 9 and the positioning hole 11, the movable plate 4 and the seat cushion bracket 1 can be stably connected.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable backrest for an electric vehicle, comprising a seat cushion bracket (1), characterized in that: Two symmetrical support plates (2) are provided on one side of the seat cushion bracket (1); a guide groove (3) is provided in the middle of the side of the support plate (2) away from the seat cushion bracket (1); a movable plate (4) is inserted in the middle of the two guide grooves (3); a fixed plate (5) is provided on the side of the seat cushion bracket (1) close to the support plate (2); connecting plates (6) are provided at both ends of the side of the movable plate (4) close to the fixed plate (5); the connecting plate (6) passes through the fixed plate (5) and is fixedly connected to the back plate (7) on the side away from the movable plate (4); two fixed blocks (8) are provided on both sides below the movable plate (4); positioning rods (9) are inserted in the middle of the two fixed blocks (8); a positioning plate (10) is provided on the side of the support plate (2) close to the seat cushion bracket (1); and a plurality of positioning holes (11) arranged at equal intervals are provided on the positioning plate (10).

2. The adjustable backrest of an electric vehicle according to claim 1, characterized in that: The positioning rod (9) and the positioning hole (11) are located in the same horizontal plane, and the end of the positioning rod (9) close to the positioning hole (11) is configured as an arc surface.

3. The adjustable backrest of an electric vehicle according to claim 1, characterized in that: The positioning rod (9) is located between the two fixed blocks (8) and is provided with a limiting block (12); the positioning rod (9) is located between the fixed block (8) and the limiting block (12) and is sleeved with a spring (13).

4. The adjustable backrest of an electric vehicle according to claim 1, characterized in that: A pull rod (14) is provided on the side of the positioning rod (9) away from the support plate (2).

5. The adjustable backrest of an electric vehicle according to claim 1, characterized in that: A back cushion (15) is provided on one side of the back plate (7) close to the seat cushion bracket (1).

6. The adjustable backrest of an electric vehicle according to claim 5, characterized in that: The back plate (7) and the back cushion (15) are fixedly connected by bolts.

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