Rear-mounted device for electric bicycle

Abstract

The utility model relates to the technical field of electric bicycle accessories, in particular to a rear-mounted device for an electric bicycle, which comprises a connecting frame and an expansion component, the expansion component comprises a first movable plate, a second movable plate and a movable side plate, a fixed seat is mounted at the top of the connecting frame, the first movable plate is mounted at one end of the top surface of the fixed seat, and the second movable plate is mounted at the other end of the top surface of the fixed seat. The second movable plate is installed at the other end of the top face of the fixed seat, the movable side plates are installed at the two ends of the first movable plate, a high connecting block is arranged on the top face of the fixed seat, a low connecting block is arranged on the top face of the fixed seat, the first movable plate and the second movable plate are rotationally connected with the high connecting block, and the movable side plates are rotationally connected with the low connecting block. When the chair needs to be used as a seat, the movable side plate, the first movable plate and the second movable plate can be folded oppositely, and the chair can be used; and when the vehicle needs to be used as a carriage, articles can be stored only by supporting the movable side plate, the first movable plate and the second movable plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric bicycle accessories technical field especially is a rear device for electric bicycle. BACKGROUND

[0002] Electric Bicycle (E-bike for short) is a kind of traffic tool that combines traditional bicycle and electric drive system. It retains the basic structure and riding mode of ordinary bicycle, but provides power assistance through motor, making riding more comfortable, especially suitable for long-distance travel, climbing or for riders with limited physical strength.

[0003] Its main working principle is through battery and motor, by connecting battery and motor, and then installing motor in the position usually installed in front wheel, rear wheel or middle shaft. Motor can provide additional power support when rider pedals.

[0004] And bicycle rear device refers to various accessories or equipment installed on the rear of bicycle, aiming to enhance function, improve safety or increase convenience. These devices can greatly expand the application range of bicycle, making it more suitable for different use scenarios and individual needs.

[0005] And the rear space of existing electric bicycle is limited, installing additional seat or trunk usually needs to occupy a large space, so that the above-mentioned two structures will conflict in use, which will cause physical interference, so that both cannot be installed at the same time, therefore, in order to solve the above technical problems, the utility model provides a rear device for electric bicycle. CONTENT OF UTILITY MODEL

[0006] The utility model aims to realize the following way: a rear device for electric bicycle, including connecting frame and extension assembly, extension assembly is installed on connecting frame, and extension assembly includes first movable plate, second movable plate and movable side plate, the top of connecting frame is equipped with fixed seat, first movable plate is installed in one end of the top surface of fixed seat, second movable plate is opposite and is installed in the top surface of fixed seat away from one end of first movable plate, movable side plate is installed in both ends of first movable plate, the top surface of fixed seat is equipped with high connecting block near first movable plate and second movable plate, the top surface of fixed seat is equipped with low connecting block near movable side plate, first movable plate and second movable plate are rotatably connected with high connecting block, movable side plate is rotatably connected with low connecting block, and the side of first movable plate and second movable plate away from fixed seat is equipped with soft pad.

[0007] In the above description, as a further scheme, the two side faces of the movable side plate are each provided with a movable slot, a locking column is movably installed in the movable slot, a swing rod is arranged on the top face of the locking column, the swing rod extends towards the top face of the movable side plate, a pushing position is arranged on the top of the swing rod, a limiting slot is arranged on the top face of the movable side plate near the swing rod, and the limiting slot extends in a direction leading to the movable slot; the swing rod can drive the locking column to move.

[0008] In the above description, as a further scheme, the side of the first movable plate away from the soft cushion and the side of the second movable plate away from the soft cushion are each provided with a positioning hole, the positioning hole has the same diameter as the locking column, and the positioning hole is coaxial with the movable slot; the positioning hole is used to provide a locking effect with the locking column.

[0009] In the above description, as a further scheme, the four corners of the top face of the fixed seat near the high connecting block are provided with high caulking blocks, and the four corners of the top face of the fixed seat near the low connecting block are provided with low caulking blocks; the high caulking blocks and the low caulking blocks can be used to fill the gap between the high connecting block and the low connecting block, so as to prevent small parts from falling out of the gap.

[0010] In the above description, as a further scheme, the top face of the first movable plate is provided with an installation slot, a limiting assembly is arranged in the installation slot, the limiting assembly comprises a traction cloth and a rotating shaft, the traction cloth is sleeved on the rotating shaft, the rotating shaft is rotatably installed in the installation slot, and a limiting torsional spring is arranged between the rotating shaft and the installation slot; the limiting torsional spring is used to provide a recovery effect on the traction cloth, so as to ensure the limiting function of the traction cloth.

[0011] In the above description, as a further scheme, the end of the traction cloth away from the rotating shaft extends towards the second movable plate, the side of the traction cloth near the second movable plate is provided with a buckling position, and the top face of the second movable plate is provided with a buckle matching the buckling position; the buckle and the buckling position are used to provide a connecting effect.

[0012] Compared with the prior art, the utility model has the beneficial effects that: through the effects of the high connecting block and the low connecting block, the first movable plate, the second movable plate and the movable side plate, when it is needed to be used as a seat, the movable side plate can be folded, the first movable plate and the second movable plate are folded in opposite directions, the soft cushion faces upwards, and the seat is used; when it is needed to be used as a car box, the movable side plate, the first movable plate and the second movable plate are only needed to be supported, and the car box can be used to store objects, a larger use range is provided, and the shortcoming that the seat and the car box cannot be installed together is solved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a three-dimensional structure schematic diagram of a rear-mounted device of an electric bicycle in an unfolded state;

[0014] Figure 2 is a three-dimensional structural schematic view of a storage state of a rear-mounted device for an electric bicycle according to the present application;

[0015] Figure 3 is a structural exploded schematic view of a rear-mounted device for an electric bicycle according to the present application;

[0016] Figure 4 is a structural exploded schematic view of a rear-mounted device for an electric bicycle according to the present application from another perspective;

[0017] Figure 5 is a partial enlarged schematic view of structure A in the present application; Figure 3

[0018] Figure 6 is a partial enlarged schematic view of structure B in the present application; Figure 4

[0019] In the figure: 1 - connecting frame, 2 - first movable plate, 3 - second movable plate, 4 - movable side plate, 5 - fixed seat;

[0020] 6 - high connecting block, 7 - low connecting block, 8 - soft pad, 9 - movable groove, 10 - locking column, 11 - swing rod;

[0021] 12 - shifting position, 13 - limiting groove, 14 - positioning hole, 15 - high caulking block, 16 - low caulking block;

[0022] 17 - mounting groove, 18 - traction cloth, 19 - rotating shaft, 20 - limiting torsional spring, 21 - buckle position, 22 - buckle block. DETAILED DESCRIPTION

[0023] The present application will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] In this embodiment, please refer to Figures 1-6 , a rear-mounted device for an electric bicycle according to the specific implementation, which comprises a connecting frame 1 and an expansion assembly, the expansion assembly is installed on the connecting frame 1, the expansion assembly comprises a first movable plate 2, a second movable plate 3 and a movable side plate 4, a fixed seat 5 is installed on the top of the connecting frame 1, the first movable plate 2 is installed at one end of the top surface of the fixed seat 5, the second movable plate 3 is oppositely installed at one end of the top surface of the fixed seat 5 away from the first movable plate 2, the movable side plate 4 is installed at both ends of the first movable plate 2, a high connecting block 6 is arranged on the top surface of the fixed seat 5 close to the positions of the first movable plate 2 and the second movable plate 3, a low connecting block 7 is arranged on the top surface of the fixed seat 5 close to the position of the movable side plate 4, the first movable plate 2 and the second movable plate 3 are rotatably connected with the high connecting block 6, the movable side plate 4 is rotatably connected with the low connecting block 7, and the first movable plate 2 and the second movable plate 3 are installed with soft pads 8 on the sides away from the fixed seat 5.​​

[0025] The two side faces of the movable side plate 4 are provided with movable grooves 9, and locking columns 10 are movably arranged in the movable grooves 9; the top faces of the locking columns 10 are provided with swing rods 11, the swing rods 11 extend towards the direction of the top face of the movable side plate 4, and the top portions of the swing rods 11 are provided with poking positions 12; the top face of the movable side plate 4 is provided with limiting grooves 13 near the positions of the swing rods 11, and the limiting grooves 13 extend in a through manner towards the direction of the movable grooves 9.

[0026] The side, away from the soft pad 8, of the first movable plate 2 and the side, away from the soft pad 8, of the second movable plate 3 are provided with positioning holes 14, the hole diameters of the positioning holes 14 are the same as those of the locking columns 10, and the positioning holes 14 are coaxial with the movable grooves 9.

[0027] The top face of the fixed seat 5 is provided with high caulking blocks 15 near the positions of the four corners close to the high connecting blocks 6, and is provided with low caulking blocks 16 near the positions of the four corners close to the low connecting blocks 7.

[0028] The top face of the first movable plate 2 is provided with an installation groove 17, and a limiting assembly is arranged in the installation groove 17; the limiting assembly comprises a traction cloth 18 and a rotating shaft 19, the traction cloth 18 is sleeved on the rotating shaft 19, the rotating shaft 19 is rotatably arranged in the installation groove 17, and a limiting torsional spring 20 is arranged between the rotating shaft 19 and the installation groove 17.

[0029] One end of the traction cloth 18, away from the rotating shaft 19, extends towards the direction of the second movable plate 3, and the side, close to the second movable plate 3, of the traction cloth 18 is provided with a buckling position 21; the top face of the second movable plate 3 is provided with a buckling block 22 matched with the buckling position 21.

[0030] The unfolding process of the utility model is as follows: after the first movable plate 2 and the second movable plate 3 are folded and erected, the movable side plate 4 is unfolded, when the two ends of the movable side plate 4 are aligned with the first movable plate 2 and the second movable plate 3 respectively, the swing rod 11 can be controlled through the poking position 12, the locking column 10 is driven to be used towards the positioning hole 14, and the locking effect is realized.

[0031] Then the traction cloth 18 can be pulled out of the installation groove 17 by hand, and the traction cloth 18 is pulled by hand until the buckling position 21 on the traction cloth 18 is connected with the buckling block 22, and the closing effect of the inner storage space is realized.

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the utility model will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the skilled in the art without creative labor belong to the protection scope of the utility model.

[0033] In addition, in the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In the description of the present application, it should be pointed out that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] Finally, it should be pointed out that: the above embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit it, the protection scope of the present application is not limited to this, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any skilled person in the art can modify or easily think of changes to the technical solutions recorded in the foregoing embodiments within the technical range disclosed by the present application, or make equivalent replacement to some technical features; and these modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and all should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A rear-mounted device for an electric bicycle, comprising a connecting frame and an extension assembly, the extension assembly being mounted on the connecting frame, characterized in that: The expansion assembly comprises a first movable plate, a second movable plate and a movable side plate, a fixed seat is installed on the top of the connecting frame, the first movable plate is installed at one end of the top surface of the fixed seat, the second movable plate is oppositely installed at the other end of the top surface of the fixed seat away from the first movable plate, the movable side plate is installed at both ends of the first movable plate, high connecting blocks are arranged at positions of the top surface of the fixed seat close to the first movable plate and the second movable plate, low connecting blocks are arranged at positions of the top surface of the fixed seat close to the movable side plate, the first movable plate and the second movable plate are rotatably connected with the high connecting blocks, the movable side plate is rotatably connected with the low connecting blocks, and soft pads are installed on sides of the first movable plate and the second movable plate away from the fixed seat.

2. A rear mount for an electrically powered cycle as claimed in claim 1, wherein: Both sides of the movable side plate are provided with movable grooves, locking columns are movably installed in the movable grooves, swing rods are arranged on the top surfaces of the locking columns and extend towards the top surface of the movable side plate, a pulling position is arranged on the top of the swing rod, a limiting groove is arranged on the top surface of the movable side plate close to the swing rod and extends in a direction leading to the movable groove.

3. A rear mount for an electrically powered cycle as claimed in claim 2, wherein: The side of the first movable plate away from the soft pad and the side of the second movable plate away from the soft pad are both provided with positioning holes, the positioning holes have the same diameter as the locking columns and are coaxial with the movable grooves.

4. A rear mount for an electrically powered cycle as claimed in claim 1, wherein: High caulking blocks are arranged at four corners of the top surface of the fixed seat close to the high connecting blocks, and low caulking blocks are arranged at the four corners of the top surface of the fixed seat close to the low connecting blocks.

5. A rear mount for an electrically powered cycle as claimed in claim 1, wherein: The top surface of the first movable plate is provided with an installation groove, a limiting assembly is arranged in the installation groove, the limiting assembly comprises a pulling cloth and a rotating shaft, the pulling cloth is sleeved on the rotating shaft, the rotating shaft is rotatably installed in the installation groove, and a limiting torsional spring is arranged between the rotating shaft and the installation groove.

6. A rear mount for an electrically powered cycle as claimed in claim 5, wherein: The end of the pulling cloth away from the rotating shaft extends towards the second movable plate, the side of the pulling cloth close to the second movable plate is provided with a buckle position, and the top surface of the second movable plate is provided with a buckle block matched with the buckle position.

Images