CN103466026A - Portable electric bicycle - Google Patents

Abstract

The invention discloses a portable electric vehicle, which comprises a vehicle frame, two front wheels, a rear wheel, a brake handle on the left and right sides, a speed regulating handle, a rear wheel fixing plate, a front wheel telescopic device, a rear wheel Wheel telescoping device, steering control device. The portable electric vehicle of the present invention increases the wheel spacing between the front and rear wheels through the front wheel telescopic device and the rear wheel telescopic device, improves driving stability, and avoids rollover when turning. When storing at the same time, you only need to turn the back of the chair down, and the front wheels can be retracted under the control of the telescopic device, and the handle of the rear wheel telescopic device can be moved, and the rear wheels can be close to the frame, which reduces the floor space and is convenient for storage, and can be carried at any time. Get on a bus or subway vehicle for easy travel.

Description

portable electric car

technical field

The invention relates to a portable electric vehicle and belongs to the technical field of vehicles.

Background technique

With the introduction of the slogan of green travel, advocating everyone to use the public transportation system to travel has become one of the main measures to reduce pollution. But the distance between the current bus station or subway station and the residence is relatively long, and the distance between the bus station and the subway transfer station is not close, which is not conducive to promoting the use of public transportation among the public. The combination of bicycles or electric vehicles with public transportation can only solve the inconvenience at one end of the itinerary. Therefore, if there is an electric vehicle that can be lifted at any time, it is convenient to get on and off the bus, transfer between the residence and the bus station, and the subway The electric mobility tools used between stations will bring convenience to the public.

The seat-type electric vehicle (201120200078.X) disclosed on December 28, 2011, as shown in Figure 1, includes pedals, two front wheels, one rear wheel, a frame, a steering control lever, and a The vehicle speed controller and the brake handle, the seat back, the steering rod bracket, and the wheel fork at the top of the control rod, the lower end of the seat back is installed on the vehicle frame in a rotating manner through a hinge, and the lower end of the steering control rod is connected to the On the steering rod bracket, the steering rod bracket is connected to the wheel fork through a steering control chain system, and the wheel fork and the rear wheel are fixed on the vehicle frame through bearings. The seat-type electric car can be carried on the bus or subway without disassembly and folding, but the distance between the front and rear wheels of the seat-type electric car is fixed, and the stability is not good when driving. high.

Contents of the invention

The object of the present invention is to provide a portable electric vehicle, which increases the wheelbase between the front and rear wheels by extending the front and rear wheels, increases the stability and safety during driving, and avoids rollover. In addition, the front and rear wheels can be retracted when not in use, reducing the footprint.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows:

A portable electric vehicle, including a frame, two front wheels, a rear wheel, a brake handle on the left and right sides, a speed control handle, a rear wheel fixing plate, a front wheel telescopic device, a rear wheel telescopic device, Steering control device; the front wheel telescopic device includes a seat back, two long push rods, two swing rods, two front wheel carriage push rods and a front wheel carriage assembly, and one end of the long push rod adopts a flexible connection It is installed on the protruding prongs at both ends of the bottom of the chair back, and the other end is connected with the middle hole of the swing rod through a flexible connection. The upper end of the swing rod is installed on the connecting arm on the frame through a flexible connection. The connection mode connects one end of the push rod of the front wheel carriage; the rear wheel telescopic device includes a push rod, a push rod support frame, a bottom plate of the rear wheel telescopic device, a rotating shaft of the bottom plate of the rear wheel telescopic device, a handle of the rear wheel telescopic device, and a handle of the rear wheel telescopic device Support, connecting plate, pin, described push rod support frame and rear wheel expansion device handle bracket are fixed on the two ends of the same plane of rear wheel expansion device base plate, and described push rod is installed in the round hole of push rod support frame, and described The handle of the rear wheel telescopic device is fixed on the handle bracket of the rear wheel telescopic device through a pin, one end of the connecting plate is installed on the handle of the rear wheel telescopic device through a pin, and the other end is connected with the push rod through a pin, and the bottom plate shaft of the rear wheel telescopic device The shaft sleeve is connected with the rear wheel fixed plate; the steering control device includes a direction control rod, a steering shaft arm, a steering shaft arm fixing sleeve, a pull rod, and a steering wheel yoke, and the steering shaft arm fixing sleeve is welded on the vehicle frame At the right rear corner of the steering shaft, the steering shaft arm passes through it to form a sliding fit. One end of the tie rod is installed on a protruding cantilever under the steering shaft arm by a flexible connection, and the other end is connected to the steering wheel yoke by a flexible connection. The direction control rod is installed on the top of the steering shaft arm in a flexible connection, and the steering wheel yoke is fixed on the rear wheel fixing plate through two bearings with seats.

The front wheel carriage assembly includes two front wheel axles, two front wheel carriage push rod seats, two front wheel carriage guide sleeves, two front wheel support arms and a footboard, and the front ends of the front wheel support arms are welded for installation The front wheel shaft of the front wheel, one end of the front wheel carriage conduit sleeve is welded to the front wheel carriage push rod seat, and the other end of the front wheel carriage push rod is fixed on the front wheel carriage push rod seat in a flexible connection mode, and the front wheel carriage The frame guide sleeve is slipped on the left and right longitudinal beams at the bottom of the vehicle frame.

The chair back is installed on the top rear crossbeam of the vehicle frame in a flexible connection through a hinge welded at its bottom.

The seat back is provided with a lock buckle, and the seat back is fixed on the vehicle frame through the lock buckle after the chair back is folded and turned over.

A handle is provided on the back of the chair, and the handle is exposed after the back of the chair is folded and turned over.

The vehicle frame is a closed frame structure with a cavity welded by rectangular steel pipes, and the cavity is used for installing a storage battery.

The speed regulating handle and the right brake handle are installed on the top of the direction control rod, and the left and right brake handles are connected to the brake structure on the wheel through brake lines.

Compared with the prior art, the portable electric vehicle of the present invention can be used by turning up the seat back, and when the seat back is turned down, the lock on the seat back connects the seat back to the vehicle frame. The handle can lift the whole portable electric car, which is very convenient to carry and saves the cumbersome folding process of ordinary folding electric cars. In addition, when the back of the chair is turned up, the front wheel can be stretched out through the front wheel telescopic device, and the handle of the rear wheel telescopic device can be moved to push the rear wheel backward, which increases the wheelbase between the front and rear wheels and improves driving stability. To avoid rollover when turning. When storing, you only need to turn the back of the chair down, and the front wheels can be retracted under the control of the telescopic device, and the handle of the rear wheel telescopic device can be moved, and the rear wheels can be close to the frame, which reduces the floor space and facilitates storage.

Description of drawings

FIG. 1 is a schematic structural view of an existing seat-type electric vehicle.

Fig. 2 is a schematic structural view of the portable electric vehicle of the present invention.

Fig. 3 is a rear side view of the portable electric vehicle of the present invention.

Fig. 4 is a view when the seat back of the portable electric vehicle of the present invention is turned down and the rear wheels are retracted.

Fig. 5 is a schematic structural view of the front wheel carriage assembly of the portable electric vehicle of the present invention.

Fig. 6 is a view when the rear wheel telescoping device of the portable electric vehicle of the present invention is stretched out.

Fig. 7 is a view when the retractable device for the rear wheel of the portable electric vehicle of the present invention is retracted.

In Fig. 1: 1 is a pedal, 2 is a front wheel, 3 is a vehicle frame, 4 is a brake handle, 5 is a vehicle speed controller, 6 is a steering lever, 7 is a seat back, 8 is a wheel fork, and 9 is a rear wheel, 10 is a steering control chain system, and 11 is a steering rod support.

In Fig. 2-Fig. 7: 1 is the seat back, 2 is the seat plate, 3 is the speed control handle, 4 is the right brake handle, 5 is the left armrest, 6 is the left brake handle, 7 is the frame, 8 is the left Front wheel, 9 is the pedal, 10 is the battery, 11 is the right front wheel, 12 is the front wheel carriage assembly, 13 is the front wheel carriage push rod (2 pieces), 14 is the swing rod (2 pieces), 15 is the long Push rod (2 pieces), 16 is the electric wheel with brake, 17 is the steering wheel fork, 18 is the handle bracket of the rear wheel telescopic device, 19 is the steering shaft arm, 20 is the pull rod, 21 is the steering shaft arm fixing sleeve, 22 is Direction control rod, 23 is the rear wheel fixing plate, 24 is the handle, 25 is the lock buckle, 26 is the front wheel shaft (2 pieces), 27 is the front wheel carriage push rod seat (2 pieces), 28 is the front wheel carriage guide sleeve (2), 29 is the front wheel support arm (2), 30 is the handle of the rear wheel telescopic device, 31 is the connecting plate, 32 is the pin (3), 33 is the push rod, 34 is the push rod support frame, 35 For the rear wheel telescopic device base plate, 36 is the rear wheel telescopic device base plate rotating shaft.

Detailed ways

The technical solutions of the present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 2-7, the portable electric vehicle includes a seat back 1, a seat plate 2, a speed control handle 3, a right brake handle 4, a left armrest 5, a left brake handle 6, a frame 7, and a left front wheel 8 , pedal board 9, battery 10, right front wheel 11, front wheel carriage assembly 12, front wheel carriage push rod (2 pieces) 13, swing rod (2 pieces) 14, long push rod (2 pieces) 15, with brake Electric wheel 16, steering wheel fork frame 17, rear wheel telescopic device handle bracket 18, steering shaft arm 19, pull rod 20, steering shaft arm fixing sleeve 21, direction control rod 22, rear wheel fixing plate 23, handle 24, lock 25. Front wheel shaft (2 pieces) 26. Front wheel carriage push rod seat (2 pieces) 27. Front wheel carriage guide sleeve (2 pieces) 28. Front wheel support arm (2 pieces) 29. Rear wheel telescopic device handle 30. Connecting plate 31, pin (3) 32, push rod 33, push rod support frame 34, rear wheel expansion device base plate 35, rear wheel expansion device base plate rotating shaft 36. in

The vehicle frame 7 is a closed frame structure with a cavity welded by rectangular steel pipes. The cavity is used to install the battery 10. The seat back 1 is in the shape of a rectangular frame with hinges welded at the bottom. Stretch out a section of prong, and described chair back 1 is installed on the crossbeam of vehicle frame 7 top rear ends by hinge.

The back of the seat back 1 is provided with a handle 24 for carrying the car, and the lock 25 is installed on the top of the seat back 1 through the shaft tube. When the seat back 1 is turned down, the lock 25 buckles the vehicle frame The hook on the 7 connects the seat back 1 with the vehicle frame 7, and the car can be mentioned by lifting the handle 24.

Described seat board 2 is installed on the vehicle frame 7 top front end beams by hinge, turns over seat board 2 and can access the article in the vehicle frame 7 conveniently.

The speed regulating handle 3 and the right brake handle 4 are installed on the top of the direction control rod 22, and the left brake handle is installed on the left handrail 5. The left and right brake handles are connected to the brake structure on the wheel through brake wires.

The front wheel telescopic device is a bar system formed by chair back 1, long push rods (2 pieces) 15, swing rods (2 pieces) 14, front wheel carriage push rods (2 pieces) 13, and front wheel carriage assembly 12. structure.

As shown in Figure 5, the front wheel carriage assembly 12 includes front wheel axles (2 pieces) 26, front wheel carriage push rod seats (2 pieces) 27, front wheel carriage guide sleeves (2 pieces) 28, front wheel support arms (2 pieces) only) 29 and tread plate 9, wherein the front wheel carriage conduit sleeve (2 pieces) 28, the front wheel support arm (2 pieces) 29 and the tread plate 9 are welded into a fork structure, and the front wheel carriage conduit sleeve (2 pieces) 28 is a hollow rectangular tube structure, which is sleeved on the left and right longitudinal beams at the bottom of the vehicle frame 7 to form a sliding fit. The front wheel carriage push rod seat (2 pieces) 27 for the front wheel carriage push rod (2 pieces) 13 is welded on the said front wheel carriage guide sleeve (2 pieces) 28, and the said front wheel support arm (2 pieces) 29 The front end is welded for the front axle (2) 26 of front-wheel.

The prongs (2 pieces) at the bottom of the chair back 1 adopt a flexible connection method to install long push rods (2 pieces) 15, and the long push rods (2 pieces) 15 are connected to the swing rods (2 pieces) 14 in a flexible connection manner The middle hole is connected. The upper end of the swing rod (2 pieces) 14 is installed on the connecting arm of the vehicle frame 7 through a flexible connection method, and the lower end is connected with the front wheel carriage push rod (2 pieces) 13 through a flexible connection method, and the front wheel carriage push rod (2 pieces) The other end of 13 is fixed on the front wheel carriage push rod seat (2) 27 on the front wheel carriage assembly 12 with flexible connection mode. As shown in Figure 2 and Figure 3, when the chair back 1 is turned up, the fork legs (2 pieces) at the bottom of the chair back 1 drive the long push rods (2 pieces) 15 to move forward, and the long push rods (2 pieces) 15 push The swing rod (2 pieces) 14 swings forward, and when the swing rod (2 pieces) 14 swings forward, it drives the front wheel carriage push rod (2 pieces) 13 to move forward, and the front wheel carriage push rod (2 pieces) 13 passes through the front wheel slide Frame push rod seat (2) 27 promotes front wheel carriage assembly 12 to move forward, and front wheel (left front wheel 8, right front wheel 11) and pedal 9 are moved forward, realizes increasing wheelbase and improving driving stability, purpose of avoiding rollover. As shown in Figure 4, when the chair back 1 is turned down during storage, the fork legs (2 pieces) of the chair back 1 pass through the long push rod (2 pieces) 15, the swing rod (2 pieces) 14, the front wheel carriage push rod ( 2) 13 drives the front wheel carriage assembly 12 to shrink backwards, and the front wheels (left front wheel 8, right front wheel 11) and running board 9 are retracted, reducing the floor area.

The rear wheel fixing plate 23 is installed on the rear portion of the vehicle frame 7 through a hinge, and the steering wheel yoke 17 is fixed on the rear wheel fixing plate 23 by two belt seat bearings, and the bottom of the steering wheel yoke 17 is installed with a Brake electric wheel 16, the rear wheel telescopic device bottom plate rotating shaft 36 on the described rear wheel telescopic device is connected with the rear wheel fixed plate 23 in the form of a shaft sleeve, and the push rod 33 on the described rear wheel telescopic device is fixed on the On vehicle frame 7, described rear wheel fixed plate 23, rear wheel telescopic device and vehicle frame 7 form triangular shape, as Fig. 2 and Fig. 3, move rear wheel telescopic device handle 30, push rod 33 stretches out and rear wheel is fixed. Plate 23 is pushed away from vehicle frame 7, thereby drives steering wheel yoke 17 and band brake electric wheel 16 to move backward, has increased the track between front and rear wheels, has improved driving stability.

As shown in Figures 6 and 7, the rear wheel telescopic device is a rod structure with self-locking function. Described rear wheel expansion device comprises push rod 33, push rod support frame 34, rear wheel expansion device base plate 35, rear wheel expansion device base plate rotating shaft 36, rear wheel expansion device handle 30, rear wheel expansion device handle support 18, connecting plate 31 , pin 32, described push rod support frame 34 adopts welding mode to be fixed on an end of rear wheel expansion device base plate 35, and described rear wheel expansion device handle support 18 is fixed on the other end on the same plane of rear wheel expansion device base plate 35. Described push rod 33 is installed in the round hole of push rod support frame 34, becomes sliding fit with push rod support frame 34, and described rear wheel telescopic device handle 30 is fixed on the rear wheel telescopic device handle bracket 18 by pin 32, so One end of the connecting plate 31 is installed on the rear wheel telescoping device handle 30 through a pin 32 , and the other end is connected with a push rod 33 through a pin 32 . After moving the rear wheel telescopic device handle 30, the rear wheel telescopic device handle 30 is fixed on the pin 32 on the rear wheel telescopic device handle bracket 18, the connecting plate 31 is fixed on the pin 32 and the connecting plate on the rear wheel telescopic device handle 30 The pin 32 that 31 is connected with push rod 33 is connected in a straight line, makes rear wheel expansion device realize self-locking function, guarantees that rear wheel does not change position because of the external force acting on the rear wheel when driving or parking.

The steering control device includes a direction control rod 22 , a steering shaft arm fixing sleeve 21 , a steering shaft arm 19 , a pull rod 20 , and a steering wheel yoke 17 . The steering shaft arm fixing sleeve 21 is welded at the right rear corner of the vehicle frame 7, the steering shaft arm 19 passes through it to form a sliding fit, and there is a protruding cantilever under the steering shaft arm 19, on which a pull rod is installed in a flexible connection mode 20. The other end of the pull rod 20 is connected to the steering wheel yoke 17 in a flexible connection, and the direction control rod 22 is installed on the top of the steering shaft arm 19 in a flexible connection, and can swing up and down in the vertical direction. When the direction control rod 22 swings left and right in the horizontal position, it drives the steering shaft arm 19 to rotate, and drives the pull rod 20 to move through the steering shaft arm 19, driving the steering wheel fork 17 to rotate, thereby realizing the steering of the rear wheel and controlling the portable electric vehicle. direction of travel.

The above-mentioned flexible connection may be pin shaft connection, spline connection, cardan shaft connection, etc., and this connection method allows the two connected structures to rotate freely. The above-mentioned front wheel carriage push rods (2 pieces) 13, swing rods (2 pieces) 14, long push rods (2 pieces) 15, front wheel shafts (2 pieces) 26, front wheel carriage push rod seats (2 pieces) 27. Front wheel carriage guide sleeves (2 pieces) 28, and front wheel support arms (2 pieces) 29 are all in a symmetrical structure with the central position of the vehicle frame.

The above embodiments are only to illustrate the technical ideas of the present invention, and can not limit the protection scope of the present invention with this. All technical ideas proposed in accordance with the present invention, any changes made on the basis of technical solutions, all fall within the protection scope of the present invention. Inside.

Claims (7)

1. a Portable electric bicycle, comprise vehicle frame (7), the near front wheel (8), off front wheel (11), belt brake powered rear wheels (16), right brake handle (4), left brake handle (6), speed control crank (3), it is characterized in that: also comprise trailing wheel adapter plate (23), front-wheel retractor device, trailing wheel retractor device, steering controlling device;

Described front-wheel retractor device comprises the chair back (1), two long push rods (15), two forks (14), two front-wheel balladeur train push rods (13) and front-wheel balladeur train assembly (12), one end of described long push rod (15) adopts flexible connection mode to be arranged on the fork pin stretched out at two ends, the chair back (1) bottom, the other end adopts flexible connection mode to be connected with the interstitial hole of fork (14), described fork (14) upper end is arranged on the connecting arm on vehicle frame (7) by flexible connection mode, and lower end adopts flexible connection mode to connect an end of front-wheel balladeur train push rod (13);

Described trailing wheel retractor device comprises push rod (33), push rod bracing frame (34), trailing wheel retractor device base plate (35), trailing wheel retractor device base plate rotating shaft (36), trailing wheel retractor device handle (30), trailing wheel retractor device handle bracket (18), connecting panel (31), pin (32), described push rod bracing frame (34) and trailing wheel retractor device handle bracket (18) are fixed on the conplane two ends of trailing wheel retractor device base plate (35), described push rod (33) is arranged in the circular hole of push rod bracing frame (34), described trailing wheel retractor device handle (30) is fixed on trailing wheel retractor device handle bracket (18) by pin (32), described connecting panel (31) one ends are arranged on trailing wheel retractor device handle (30) by pin (32), the other end is connected with push rod (33) by pin (32), described trailing wheel retractor device base plate rotating shaft (36) adopts the pipe spreader mode to be connected with trailing wheel adapter plate (23),

Described steering controlling device comprises direction control stalk (22), turn to armshaft (19), turn to armshaft fixed cover (21), pull bar (20), wheel flutter crotch (17), the described place, right back angle that turns to armshaft fixed cover (21) to be welded on vehicle frame (7), turn to armshaft (19) to be through at and wherein become bearing fit, one end of described pull bar (20) adopts flexible connection mode to be arranged on and turns on the one protrusion cantilever of armshaft (19) below, the other end adopts flexible connection mode to be connected with wheel flutter crotch (17), described direction control stalk (22) adopts flexible connection mode to be arranged on the top that turns to armshaft (19), described wheel flutter crotch (17) is fixed on described trailing wheel adapter plate (23) by two rolling bearing units.

2. Portable electric bicycle as claimed in claim 1, it is characterized in that: described front-wheel balladeur train assembly (12) comprises two fronts wheel spindle (26), two front-wheel balladeur train ram seat (27), two front-wheel balladeur train sheathed catheters (28), two front wheel supporting arms (29) and tread plate (9), the welding of described front wheel supporting arm (29) front end is for the front wheel spindle (26) that front-wheel is installed, one end welding front-wheel balladeur train ram seat (27) of described front-wheel balladeur train sheathed catheter (28), the upper fixedly other end of front-wheel balladeur train push rod (13) of flexible connection mode that adopts of described front-wheel balladeur train ram seat (27), it is left that described front-wheel balladeur train sheathed catheter (28) is enclosed within vehicle frame (7) bottom, become bearing fit on right longitudinal beam.

3. Portable electric bicycle as claimed in claim 1, it is characterized in that: the described chair back (1) is arranged on described vehicle frame (7) top rear crossbeam with flexible connection mode by the hinge of its bottom welding.

4. Portable electric bicycle as claimed in claim 3, is characterized in that: be provided with snap close (25) on the described chair back (1), by described snap close (25), the chair back (1) be fixed on described vehicle frame (7) after the described chair back (1) folded turnover.

5. Portable electric bicycle as claimed in claim 4, is characterized in that: be provided with handle (24) on the described chair back (1), after the described chair back (1) folded turnover, expose described handle (24).

6. Portable electric bicycle as claimed in claim 1 is characterized in that: the structure of the closed frame with cavity that described vehicle frame (7) is welded for rectangular steel pipe, described cavity is for installing storage battery (10).

7. Portable electric bicycle as claimed in claim 1, it is characterized in that: described speed control crank (3) and right brake handle (4) are arranged on described direction control stalk (22) top, and left and right brake handle is connected with the brake structure on wheel by brake cable.

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