CN206141712U - Electric bicycle's easy reassembling type rear wheel subassembly - Google Patents

Abstract

The easily detachable rear wheel assembly of an electric bicycle includes an outer frame and a rear drive wheel with a built-in drive motor. The rear side of the outer frame is provided with a taillight, the top of the outer frame is provided with a support frame, and the support frame is provided with a rear seat. There is a mudguard above the rear driving wheel, and the two ends of the central axis of the rear driving wheel are connected to the left and right sides of the outer frame; the lower parts of the left and right sides of the outer frame are equipped with a flip-type support pedal structure, and the two The structures of the two overturned support pedal structures are identical and symmetrically arranged. The utility model has the advantages of novel design, simple structure, compact installation, automatic parking support, particularly good shock absorption effect, easy disassembly and assembly of the rear driving wheel, and convenient maintenance of the rear driving wheel.

Description

Detachable rear wheel assembly of electric bicycle

technical field

The utility model relates to a transportation tool, in particular to an easily disassembled rear wheel assembly of an electric bicycle.

Background technique

The electric bicycle is a new type of transportation tool that has developed rapidly in recent years and has gradually replaced the traditional pedal bicycle to a certain extent. However, while people favor its features such as fast operation and novel appearance, they find that it also has some defects. For example: first, since the load-bearing of the electric bicycle is mainly on the rear wheel, the probability and degree of damage to the rear wheel are much greater than that of the front wheel, and the rear wheel of the electric bicycle has a built-in motor, which is the driving wheel. When the rear wheel is damaged, it needs to During maintenance, dismounting is cumbersome, and wastes more time and physical strength; second, the damping effect of existing electric bicycles is not very good, and for riding on rough road surfaces, the rider and the people he brings It is not very comfortable, and it is easy to damage the battery, controller and other accessories; 3rd, the existing electric bicycle generally needs to use the feet to support the support on the ground after parking, and the degree of automation is low, especially for riding with children. The safety of pedestrians when parking is relatively poor.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides an easily dismountable rear wheel assembly of an electric bicycle with easy disassembly and assembly, good shock absorption effect and convenient parking.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: the easily disassembled rear wheel assembly of the electric bicycle includes an outer frame and a rear drive wheel with a built-in drive motor, the rear side of the outer frame is provided with a tail light, and the top of the outer frame is provided with A support frame, the support frame is provided with a rear seat, and the outer frame is provided with a mud shield located above the rear driving wheel, and the two ends of the central axis of the rear driving wheel are connected to the left and right sides of the outer frame in rotation;

The lower parts of the left and right sides of the exoskeleton are equipped with a flip-type support pedal structure, and the two flip-type support pedal structures have the same structure and are symmetrically arranged left and right;

The flip-type supporting pedal structure on the right side of the exoskeleton includes a fixed pedal, a flipped pedal and a connecting rod. The fixed pedal is set horizontally. The left side of the fixed pedal is fixed at the lower part of the right side of the outer frame. The lower surface is fixedly equipped with a turning motor, the lower surface of the turning pedal is provided with a guide plate along the left and right directions, and the guide plate is provided with a guide hole along the left and right directions. The main shaft of the turning motor is perpendicular to one end of the connecting rod and is fixedly connected. A guide column that extends into the guide hole and can slide along the guide hole is vertically provided.

There is a mounting block on the left and right sides of the exoskeleton respectively. Two mounting grooves are horizontally opened on the left surface of the left mounting block and the right surface of the right mounting block along the front and rear direction. The two mounting grooves on the left Both the front end and the left side of the mounting groove are open, and the front and right sides of the two mounting grooves on the right are both open. The cross sections of the four mounting grooves are all T-shaped structures with the same structural size. The left side of the left mounting block Both the surface and the right side of the right mounting block are provided with positioning holes between the two mounting grooves on the same side.

The rear seat comprises a fixed plate horizontally arranged on the top of the support frame, compression springs are uniformly arranged in a rectangular array on the surface of the fixed plate, a movable plate is horizontally arranged on the top of the compression spring, a cushion is arranged on the upper surface of the movable plate, the cushion, the compression spring, the movable A flexible cover is provided outside the plate and the fixed plate.

Adopting the above-mentioned technical scheme, the electric bicycle also includes a frame, the front side of the frame is provided with a shock-absorbing front fork, the upper end of the shock-absorbing front fork is provided with a handlebar, the handlebar is provided with a controller, and the lower part of the shock-absorbing front fork is provided with a front wheel. , the rear of the frame is provided with a rechargeable battery and a driver's seat above the rechargeable battery, the upper and lower parts of the rear side of the frame are respectively provided with an upper mounting seat and a lower mounting seat, and the rear fork is hinged on the lower mounting seat. The upper side of the rear part is provided with a lower connecting seat, and a main shock absorbing spring is arranged between the lower connecting seat and the upper mounting seat, and the upper and lower ends of the main shock absorbing spring are respectively hinged with the upper mounting seat and the lower connecting seat

The side of the rechargeable battery is provided with a power supply interface, and the built-in motor of the rear driving wheel and the overturning motor are all connected to the power supply interface through the power supply line, and the built-in motor and the overturning motor of the rear driving wheel are all connected with the controller through the control line.

The right surface on the left side of the rear end of the rear fork and the left surface on the right side are provided with two convex ribs, and the four convex ribs are all arranged horizontally along the front and rear directions. T-shaped structure, the distance between the two convex ribs on the same side is equal to the distance between the two installation grooves on the same side; both sides of the back end of the rear fork are threaded and connected to the positioning holes on the same side Matching positioning bolts, the positioning bolts are located between the two convex ribs, and the outer ends of the positioning bolts are provided with handles; the two convex ribs on the same side are correspondingly inserted into the two installation grooves on the same side and extended into the Insert it into the positioning hole to realize the assembly between the rear drive wheel and the rear fork.

The upper part of the front side of the support frame is provided with an upper connection seat, and an auxiliary damping spring is arranged between the upper part of the upper installation seat and the upper connection seat.

The front side of the rear vehicle seat is provided with a block cover positioned above the auxiliary damping spring, and the front side of the block cover is connected with the front side of the rear vehicle seat by fastening screws.

When the electric bicycle is parked, operate the controller to start the turning motor, the main shaft of the turning motor drives the connecting rod to rotate downward, the guide post at the other end of the connecting rod moves along the guide hole, and the connecting rod drives the turning pedal to turn down 90 degrees through the guide post. °, that is, when the overturning pedal is overturned to a vertical state, the entire rear driving wheel is supported, and the two overturning pedals can prevent the rear driving wheel from toppling to the left or toppling to the right, so that the electric bicycle can be kept in an upright state. In this way, the rear support is not needed to be supported by feet, the degree of automation is high, and the safety and reliability are greatly enhanced.

When it is necessary to disassemble the rear drive wheel, first remove the connection hinge between the auxiliary shock absorbing spring and the upper connection seat, then loosen the positioning bolt with the handle first, so that the positioning bolt comes out of the positioning hole, and pull the rear drive Wheel, make the rib strip and the mounting groove disengage, so that the rear drive wheel can be pulled out. When installing the rear drive wheels, perform the above steps in reverse order.

The shock-absorbing front fork, the main shock-absorbing spring and the auxiliary shock-absorbing spring play a good shock-absorbing effect on the vehicle frame and the driver's seat, and the compression spring plays a good shock-absorbing effect on people who mostly sit on the rear seat. It makes people more comfortable when driving and riding the utility model, and ensures the service life of each component on the vehicle frame.

To sum up, the electric bicycle has novel design, simple structure, compact installation, automatic parking support, particularly good shock absorption effect, easy disassembly and assembly of the rear driving wheel, and convenient maintenance of the rear driving wheel.

Description of drawings

Fig. 1 is the plane structure schematic diagram of electric bicycle;

Fig. 2 is a schematic diagram of the three-dimensional structure of the electric bicycle after the rear driving wheel is removed;

Fig. 3 is a sectional view of the rear driving wheel in Fig. 1 .

detailed description

As shown in Figures 1-3, the electric bicycle includes a vehicle frame 1, a shock-absorbing front fork 2 is provided on the front side of the vehicle frame 1, a handlebar 3 is provided at the upper end of the shock-absorbing front fork 2, and a controller is provided on the handlebar 3 4. The lower part of the shock-absorbing front fork 2 is provided with the front wheel 5, the rear part of the vehicle frame 1 is provided with a rechargeable battery 6 and the driver's seat 7 above the rechargeable battery 6, and the upper part and the lower part of the rear side of the vehicle frame 1 are respectively equipped with an upper mounting bracket. Seat 8 and lower mounting base 9, rear fork 10 is hinged on the lower mounting base 9, rear fork 10 is provided with lower connecting base 11 on the rear upper side, and main shock absorber is arranged between lower connecting base 11 and upper mounting base 8 Spring 12, the upper end and the lower end of the main damping spring 12 are respectively hinged with the upper mounting base 8 and the lower connecting base 11, and a rear wheel assembly is provided between the rear ends of the rear fork 10 through a detachable fastening structure.

The rear wheel assembly comprises an exoskeleton 13 and a rear drive wheel 14 with a built-in drive motor. The rear side of the exoskeleton 13 is provided with a tail light 15, and the top of the exoskeleton 13 is provided with a support frame 16. The support frame 16 is provided with a rear seat, and the exoskeleton 13 A mud shield 18 positioned above the rear drive wheel 14 is arranged on the top, and the two ends of the central axis of the rear drive wheel 14 are rotatably connected to the left and right sides of the outer frame 13 .

The lower part of the left side and the right side of the outer frame 13 is provided with an overturned support pedal structure, and the two overturned support pedal structures have the same structure and are left and right symmetrically arranged.

The flip-type support pedal structure on the right side of the outer frame 13 includes a fixed pedal 19, a flip pedal 20 and a connecting rod 21. The fixed pedal 19 is horizontally arranged, and the left side of the fixed pedal 19 is fixed on the lower right side of the outer frame 13. The left side of the fixed pedal 19 is connected to Overturning pedal 20 right sides are hinged, fixed pedal 19 lower surfaces are fixedly provided with overturning motor 22, and overturning pedal 20 lower surfaces are provided with guide plate 23 along left and right directions, and guide plate 23 is provided with guide hole 24 along left and right directions, and overturning motor 22 The main shaft is perpendicular to and fixedly connected to one end of the connecting rod 21 , and the other end of the connecting rod 21 is vertically provided with a guide post 25 that extends into the guide hole 24 and can slide along the guide hole 24 .

Rechargeable battery 6 sides are provided with power supply interface 26, and the built-in motor of rear drive wheel 14 and overturning motor 22 are all connected with power supply interface 26 by power supply line, and the built-in motor of rear drive wheel 14 and overturning motor 22 all pass control line and control Device 4 is connected.

The detachable fastening structure on the right side of the rear fork 10 includes a mounting block 27 located on the right side of the outer frame 13 and two ribs 28 arranged on the left surface of the rear end of the rear end of the rear fork 10. The two ribs 28 are both It is arranged horizontally along the front-to-back direction, and the right side of the mounting block 27 is horizontally provided with two mounting grooves 29 along the front-to-rear direction. The cross-sections are all T-shaped structures with the same structural size, and the distance between the two convex ribs 28 and the distance between the two installation grooves 29 are equal;

The right side of the mounting block 27 is provided with a positioning hole 30 between the two mounting grooves 29. The rear end of the rear fork 10 is threadedly connected with a positioning bolt 31 corresponding to the positioning hole 30, and the positioning bolt 31 is located on the two ribs. 28, the right end of the positioning bolt 31 is provided with a handle 32;

The two ribs 28 on the same side are correspondingly inserted into the two installation grooves 29 on the same side and extend into the positioning holes 30 through the positioning bolts 31 to realize the assembly between the rear driving wheel 14 and the rear fork 10 .

The detachable fastening structure on the left side of the rear fork 10 has the same structure as the detachable fastening structure on the right side of the rear fork 10 and is bilaterally symmetrical. Here, the detachable fastening structure on the left side of the rear fork 10 will not be repeated here.

The upper part of the front side of the support frame 16 is provided with an upper connecting seat 33, and an auxiliary shock absorbing spring 34 is provided between the upper mounting seat 8 top and the upper connecting seat 33. The connecting seat 33 is hinged.

The front side of the rear vehicle seat is provided with a block cover 35 positioned at the auxiliary damping spring 34 top, and the front side of the block cover 35 is connected with the front side of the rear vehicle seat by fastening screws 36.

The rear seat comprises a fixed plate 37 horizontally arranged on the top of the support frame 16, the upper surface of the fixed plate 37 is evenly arranged with compression springs 38 in a rectangular array, the top of the compression springs 38 is horizontally provided with a movable plate 39, and the upper surface of the movable plate 39 is provided with a cushion 40, the seat cushion 40, the compression spring 38, the movable plate 39 and the fixed plate 37 are provided with a flexible cover 17.

When parking, operate the controller 4 to start the overturning motor 22, the main shaft of the overturning motor 22 drives the connecting rod 21 to rotate downwards, the guide post 25 at the other end of the connecting rod 21 moves along the guide hole 24, and the connecting rod 21 is driven by the guide post 25 Overturning pedal 20 turns over 90 ° downwards, that is, when turning overover pedal 20 to the vertical state, the whole rear drive wheel 14 is supported, and two overturning pedals 20 can prevent rear drive wheel 14 from toppling to the left or toppling to the right, so that Keep the e-bike upright. In this way, the rear support is not needed to be supported by feet, the degree of automation is high, and the safety and reliability are greatly enhanced.

When the rear drive wheel 14 needs to be dismantled, first the connecting hinge between the auxiliary damping spring 34 and the upper connection seat 33 is removed, and then the handle 32 is used to unscrew the positioning bolt 31 first, so that the positioning bolt 31 is released from the positioning hole 30. Deviate from, pull rear driving wheel 14 backwards, rib 28 is disengaged from mounting groove 29, so just can be extracted from rear driving wheel 14. When installing the rear drive wheel 14, operate in reverse order of the above steps.

Shock-absorbing front fork 2, main shock-absorbing spring 12 and auxiliary shock-absorbing spring 34 play to vehicle frame 1 and driver's seat 7 and play a good shock-absorbing effect, and compression spring 38 plays a good role in many people sitting on the rear seat. shock absorbing effect. It makes people more comfortable when driving and riding the utility model, and ensures the service life of each component on the vehicle frame 1 .

The above embodiments are only used to illustrate and not limit the technical solutions of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the present utility model can still be modified or equivalently replaced. Any modification or partial replacement without departing from the spirit and scope of the present utility model shall fall within the scope of the claims of the present utility model.

Claims (3)

1. The easily detachable rear wheel assembly of an electric bicycle is characterized in that: it includes an exoskeleton and a rear drive wheel with a built-in drive motor, a tail light is provided on the rear side of the exoskeleton, a support frame is provided on the top of the exoskeleton, and a support frame is provided on the support frame. For the rear seat, the outer frame is provided with a mudguard above the rear driving wheel, and the two ends of the central axis of the rear driving wheel are connected to the left and right sides of the outer frame in rotation; The lower parts of the left and right sides of the exoskeleton are equipped with a flip-type support pedal structure, and the two flip-type support pedal structures have the same structure and are symmetrically arranged left and right; The flip-type supporting pedal structure on the right side of the exoskeleton includes a fixed pedal, a flipped pedal and a connecting rod. The fixed pedal is set horizontally. The left side of the fixed pedal is fixed at the lower part of the right side of the outer frame. The lower surface is fixed with a turning motor, the lower surface of the turning pedal is provided with a guide plate along the left and right directions, and the guide plate is provided with a guide hole along the left and right directions. The main shaft of the turning motor is perpendicular to one end of the connecting rod and is fixedly connected. A guide column that extends into the guide hole and can slide along the guide hole is vertically provided. 2. The easily detachable rear wheel assembly of an electric bicycle according to claim 1, characterized in that: the left side and the right side of the outer frame are respectively provided with a mounting block, and the left side surface and the right side of the mounting block on the left side are The right surface of the mounting block is horizontally opened with two mounting grooves along the front and rear direction, the front and left sides of the two left mounting grooves are open, and the front and right sides of the two right mounting grooves are both open , the cross-sections of the four mounting grooves are all T-shaped structures with the same structural size, and the left side of the left mounting block and the right side of the right mounting block are provided with positioning holes between the two mounting grooves on the same side. 3. The easily detachable rear wheel assembly of an electric bicycle according to claim 1 or 2, wherein the rear seat includes a fixed plate horizontally arranged on the top of the support frame, and the upper surface of the fixed plate is evenly arranged in a rectangular array. A compression spring is provided with a movable plate horizontally on the top of the compression spring, a cushion is arranged on the upper surface of the movable plate, and a flexible cover is provided outside the cushion, the compression spring, the movable plate and the fixed plate.