Adjustable universal backrest support

Abstract

The utility model relates to a kind of adjustable general backrest support, including rear handrail, the backrest plate with the adjustable relative position between rear handrail, the rear handrail is provided with guide slot, backrest plate slides along guide slot, backrest plate has height adjustment state and angle adjustment state, the backrest plate is limited between guide slot by limit pin and / or bolt limit, backrest plate both sides are provided with limit pin, limit pin is constantly in guide slot;At least two jack plugs are provided in the middle of guide slot, and the jack plug is configured with bolt.When using, through spring limit pin and manual bolt on backrest support, position is set through guide slot, sliding slot, up and down, front and back and angle adjustment on backrest support can be carried out, so as to meet user demand according to different height user and different electric vehicle backrest support posture, the backrest support structure scheme of general adjustable man-machine comfort degree can solve all the man-machine comfort degree problems of electric vehicle with backrest.

Description

Technical Field

[0001] This utility model relates to the field of two-wheeled vehicle component technology, and in particular to an adjustable universal backrest bracket. Background Technology

[0002] With the continuous development of electric vehicle manufacturing technology, users' experience when riding and parking the vehicle is becoming increasingly important.

[0003] The backrest of an electric vehicle serves as a component that provides safety and comfort during riding, and its angle and height directly affect the user's comfort and safety experience.

[0004] Currently, some mainstream electric vehicles on the market do not have a backrest, while others are equipped with one. Electric vehicles without a backrest pose a significant safety hazard. When starting and accelerating, passengers in the back are at great risk of falling off the vehicle due to the lack of rear support. Vehicles with a backrest often have a fixed backrest, and the height and angle cannot be adjusted, making it difficult to accommodate people of different heights. Utility Model Content

[0005] To address the shortcomings of the existing production technology, the applicant provides an adjustable universal backrest bracket that can adjust the height and angle of the backrest, thereby optimizing the user experience.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An adjustable universal backrest support includes a rear armrest and a backrest panel whose relative position to the rear armrest is adjustable. The rear armrest is provided with a guide groove, and the backrest panel slides along the guide groove. The backrest panel has both height adjustment and angle adjustment functions.

[0008] The backrest panel and the guide groove are limited by a limiting pin and / or a latch.

[0009] Limiting pins are provided on both sides of the backrest panel, and the limiting pins always fall in the guide groove; at least two insertion holes are provided in the middle of the guide groove, and the insertion holes are equipped with pins.

[0010] As a further improvement to the above technical solution:

[0011] The guide groove includes:

[0012] The height adjustment section is formed on the rear armrest, and there is a vertical height difference between the two ends of the height adjustment section.

[0013] The angle adjustment section is located at the end of the height adjustment section that faces away from the ground. The two ends of the angle adjustment section have a vertical height difference and a horizontal distance difference.

[0014] The height adjustment section and the angle adjustment section are connected.

[0015] The height adjustment section is located in the vertical plane.

[0016] The angle adjustment section extends upwards at an angle from the top of the height adjustment section toward the rear of the vehicle.

[0017] The socket is located within the height adjustment section and is positioned along the length of the height adjustment section.

[0018] The height adjustment section and the angle adjustment section are connected by a chamfered transition, and at least one socket is located on the chamfered surface.

[0019] The guide groove has symmetrical sliding grooves on its two opposite groove walls, and the limiting pin falls in the sliding groove; the end of the limiting pin away from the sliding groove is connected to the backrest plate.

[0020] The slide groove is zigzag-shaped, and there is an offset relationship between the slide groove and the guide groove.

[0021] The turning points of the slide are provided with positioning recesses.

[0022] The backrest can slide within the height adjustment section to adjust the height, and the backrest can slide within the height adjustment section and the angle adjustment section to adjust the tilt angle.

[0023] The beneficial effects of this utility model are as follows:

[0024] This invention solves the problem that the backrest structure of electric vehicles is simple and the comfort is low because the backrest bracket of electric vehicles is fixed and cannot be moved.

[0025] The existing backrest support can only be fixed with two screws and cannot be moved. The height of the backrest support determines the height of the backrest. When people of different heights sit in the back seat, the backrest will be pressed against different positions, resulting in uncomfortable support points that cannot be adjusted.

[0026] The advantages of this utility model are that, firstly, the height can be increased by 17mm through the design, which is suitable for users of different heights; and secondly, when users want to lie down on the seat to rest when they are parked, the conventional backrest support is usually at a 90° angle to the seat, which makes it uncomfortable to place the head and can easily cause blood vessel compression; this utility model has designed a new solution in which the backrest angle can be adjusted to 112°, which is suitable for both riding and resting scenarios.

[0027] In use, the backrest bracket can be adjusted up and down, forward and backward, and at different angles by using the spring limit pin and manual pin on the backrest bracket, and by setting the position through the guide groove and slide groove. This allows for the adjustment of the backrest bracket according to the needs of users of different heights and the posture of the backrest bracket of different electric vehicles. The universal adjustable ergonomic backrest bracket structure can solve the ergonomic comfort problem of all electric vehicles equipped with backrests. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this application, showing the backrest in different adjustment states.

[0029] Figure 2 This is a schematic diagram of the guide groove and slide structure of this application.

[0030] The components include: 1. Rear armrest; 2. Backrest panel; 2a. Backrest raised position; 2b. Backrest angle changed position; 3. Guide groove; 4. Slide groove; 5. Limit pin;

[0031] 301. Height adjustment section; 302. Angle adjustment section; 303. First wall surface; 304. Second wall surface; 305. First socket; 306. Second socket;

[0032] 401. Positioning depression. Detailed Implementation

[0033] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0034] like Figure 1 and Figure 2 As shown, the adjustable universal backrest bracket of this embodiment includes a rear armrest 1 and a backrest plate 2 whose relative position to the rear armrest 1 is adjustable. A guide groove 3 is provided on the rear armrest 1, and the backrest plate 2 slides along the guide groove 3. The backrest plate 2 has a height adjustment state and an angle adjustment state.

[0035] The backrest panel 2 and the guide groove 3 are limited by a limiting pin 5 and / or a latch.

[0036] Limiting pins 5 are provided on both sides of the backrest panel 2, and the limiting pins 5 always fall in the guide groove 3; at least two insertion holes are provided in the middle of the guide groove 3, and the insertion holes are equipped with pins.

[0037] Guide groove 3 includes:

[0038] The height adjustment section 301 is formed on the rear armrest 1, and the two ends of the height adjustment section 301 have a vertical height difference.

[0039] Angle adjustment section 302 is located at the end of height adjustment section 301 that faces away from the ground. The two ends of angle adjustment section 302 have a vertical height difference and a horizontal distance difference.

[0040] Height adjustment section 301 and angle adjustment section 302 are connected.

[0041] The height adjustment section 301 is located in the vertical plane.

[0042] The angle adjustment section 302 extends upwards and tilts towards the rear of the vehicle from the top of the height adjustment section 301.

[0043] The socket is located within the height adjustment section 301, and the socket is positioned along the length of the height adjustment section 301.

[0044] The height adjustment section 301 and the angle adjustment section 302 are connected by a chamfered transition, and at least one socket is located on the chamfered surface.

[0045] The guide groove 3 has two opposite groove walls symmetrically opened with sliding grooves 4, and the limiting pin 5 falls in the sliding groove 4; the end of the limiting pin 5 away from the sliding groove 4 is connected to the backrest plate 2.

[0046] The slide groove 4 is in the shape of a broken line, and the slide groove 4 and the guide groove 3 are offset from each other.

[0047] The turning point of the slide 4 is provided with a positioning recess 401.

[0048] The backrest 2 slides within the height adjustment section 301 to adjust the height, and slides within the height adjustment section 301 and the angle adjustment section 302 to adjust the tilt angle.

[0049] The specific structure and working principle of this utility model are as follows:

[0050] like Figure 1 The diagram shown is a schematic representation of the backrest support assembly of this application. The backrest support assembly includes a rear armrest 1 and a backrest panel 2 installed in the middle of the rear armrest 1. The backrest panel 2 is a curved plate with a concave side facing the rider. The rear armrest 1 has a semi-enclosed structure, and the backrest panel 2 is fitted at the midpoint of the rear armrest 1. The key design feature of this application is that the relative height and relative angle between the backrest panel 2 and the rear armrest 1 can be adjusted.

[0051] Reference Figure 2 A guide groove 3 is provided in the middle of the rear armrest 1. The guide groove 3 includes two sections: a height adjustment section 301 located on the side wall of the rear armrest 1 facing the rider, and an angle adjustment section 302 extending from the side wall of the rear armrest 1 to the top surface of the rear armrest 1. The height adjustment section 301 and the angle adjustment section 302 are interconnected, allowing the backrest 2 to slide and swing within the height adjustment section 301 and the angle adjustment section 302. Since the angle adjustment section 302 is located above the height adjustment section 301, height adjustment can be performed independently during the adjustment process, while angle adjustment must be performed after height adjustment.

[0052] The guide groove 3, which consists of the height adjustment section 301 and the angle adjustment section 302, can be regarded as a recessed groove set on the rear armrest 1. Therefore, the guide groove 3 has side walls and a bottom wall. The side walls are "L" shaped, and the bottom wall is a wall that tends to be "L".

[0053] A sliding groove 4 is provided on the side wall. The shape of the sliding groove 4 and the side wall are offset from each other, that is, any point on the centerline of the sliding groove 4 is on the centerline of the side wall. The sliding grooves 4 are symmetrically arranged on the two side walls, and a limiting pin 5 is provided in each sliding groove 4. Correspondingly, one end of the limiting pin 5 rests in the sliding groove 4, and the other end is connected to or embedded in the side of the backrest plate 2. When the backrest plate 2 slides in the guide groove 3, the limiting pin 5 slides in the sliding groove 4 accordingly.

[0054] When the backrest panel 2 slides upward to the extended position, a positioning recess 401 is provided in the slide groove 4 to ensure stability in the extended position. When the backrest panel 2, along with the limiting pin 5, is pulled up to the positioning recess 401, the limiting pin 5 can penetrate into the positioning recess 401, preventing the backrest panel 2 from continuing to move. Therefore, in this embodiment, the limiting pin 5 is a spring pin, which is a commercially available part. MISUMI or Caterpillar spring pins can be purchased, and their specifications are selected according to the dimensions of the slide groove 4 and the positioning recess 401. In this embodiment, the principle of how the spring pin elastically resets is not described in detail.

[0055] As an optimized option for the positioning recess 401, the positioning recess 401 is set at the inflection point of the slide 4, so that the vertical length of the slide 4 is the maximum height of the backrest 2. Continuing to move directly transforms into angle adjustment, which can clearly distinguish between the two actions of raising and rotating.

[0056] At least two insertion holes are made on the bottom wall of the guide groove 3, which are used to accommodate the pins that pass through the bottom of the backrest panel 2.

[0057] The bottom wall is L-shaped and includes a first wall surface 303 and a second wall surface 304. The first wall surface 303 is a vertical surface, and the second wall surface 304 forms an obtuse angle with the first wall surface 303. A hole is made on each of the first and second wall surfaces 303. When the backrest 2 is in its initial lowest and vertical position, the pin on the backrest 2 is inserted into the first hole 305 on the first wall surface 303, and the limiting pin 5 is at the bottom of the slide groove 4. When the backrest 2 needs to be raised, the pin is pulled out of the first hole 305, and the backrest 2 is pulled up. The limiting pin 5 on the backrest 2 slides up along the slide groove 4 until it reaches the positioning recess 401. At this point, the spring pin pops out and abuts against the positioning recess 401. The pin does not need to be inserted into the second hole 306 on the second wall surface 304; it is only limited by the spring pins on both sides. When the angle needs to be adjusted further, pull the backrest 2 towards the rear of the vehicle. The limiting pin 5 is dislodged from the positioning recess 401 and continues to slide along the horizontal section of the slide groove 4. At this time, the pin on the backrest 2 is coaxial with the second insertion hole 306 on the second wall 304. The pin passes into the second insertion hole 306 and limits the backrest 2.

[0058] like Figure 1As shown, the backrest is illustrated in its initial state, its raised state 2a, and its angle-changed state 2b on a rear armrest 1, so as to compare the relative positions before and after adjustment.

[0059] The advantage of this application is that the height and angle of the backrest 2 can be adjusted, and the height state is limited by the limit pin 5, the initial state and the angle change state are limited by the latch pin, which makes it convenient to use.

[0060] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. An adjustable universal backrest bracket, characterized in that: Includes a rear armrest (1) and a backrest (2) whose relative position to the rear armrest (1) is adjustable. The rear armrest (1) is provided with a guide groove (3), and the backrest (2) slides along the guide groove (3). The backrest (2) has a height adjustment state and an angle adjustment state. The backrest panel (2) and the guide groove (3) are limited by a limiting pin (5) and / or a latch. Limiting pins (5) are provided on both sides of the backrest (2), and the limiting pins (5) always fall in the guide groove (3); at least two insertion holes are provided in the middle of the guide groove (3), and the insertion holes are equipped with pins.

2. The adjustable universal backrest bracket as described in claim 1, characterized in that: The guide groove (3) includes: The height adjustment section (301) is formed on the rear armrest (1), and the two ends of the height adjustment section (301) have a vertical height difference. Angle adjustment section (302) is located at the end of height adjustment section (301) that is away from the ground. The two ends of angle adjustment section (302) have a vertical height difference and a horizontal distance difference. The height adjustment section (301) and the angle adjustment section (302) are connected.

3. The adjustable universal backrest bracket as described in claim 2, characterized in that: The height adjustment section (301) is located in the vertical plane.

4. The adjustable universal backrest bracket as described in claim 2, characterized in that: The angle adjustment section (302) extends upward at an angle from the top of the height adjustment section (301) toward the rear of the vehicle.

5. The adjustable universal backrest bracket as described in claim 2, characterized in that: The socket is located within the height adjustment section (301) and is positioned along the length of the height adjustment section (301).

6. The adjustable universal backrest bracket as described in claim 5, characterized in that: The height adjustment section (301) and the angle adjustment section (302) are connected by a chamfered transition, and at least one socket is located on the chamfered surface.

7. The adjustable universal backrest bracket as described in claim 1, characterized in that: The guide groove (3) has two symmetrical sliding grooves (4) on its two opposite groove walls, and the limiting pin (5) falls in the sliding groove (4); the end of the limiting pin (5) away from the sliding groove (4) is connected to the backrest plate (2).

8. The adjustable universal backrest bracket as described in claim 7, characterized in that: The slide groove (4) is in the shape of a broken line, and the slide groove (4) and the guide groove (3) are offset from each other.

9. The adjustable universal backrest bracket as described in claim 8, characterized in that: The turning point of the slide (4) is provided with a positioning recess (401).

10. The adjustable universal backrest bracket as described in claim 2, characterized in that: The backrest panel (2) slides within the height adjustment section (301) to adjust the height, and slides within the height adjustment section (301) and the angle adjustment section (302) to adjust the tilt angle.

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