CN102092443B - Electric telescopic bicycle - Google Patents

Abstract

The invention belongs to the field of bicycle structures, in particular to an electric retractable bicycle. The bicycle includes electric telescopic frame, steering mechanism, wheels, power system and braking system. The rear rod, front fork and rear fork are all moving towards the direction of the screw, and the pedals are also retracted; after the screw moves to the bottom limit, the motor stops working; the upper part of the steering mechanism is manually folded backwards, and the handlebars are folded , that is to complete the entire shrinking process; the stretching process is opposite to the shrinking process. The bicycle can be unfolded or retracted within 5-10 seconds, and the operation is simple and convenient; the degree of bicycle unfolding is controllable, and users can adjust the height and length of the bicycle according to their own needs, and self-lock at any position; the retracted bicycle It is an approximate hexahedron structure, occupies a small area, can be put into a suitcase, and is extremely convenient to carry and store.

Description

electric retractable bike

technical field

The invention belongs to the field of bicycle structures, in particular to an electric retractable bicycle.

Background technique

Bicycle is a convenient means of transportation, but due to its own structural problems, it often encounters the problems of inconvenient docking, difficulty in carrying, and especially the risk of being easily stolen. Parking it indoors will take up a lot of space.

In order to solve this problem, collapsible bicycles have appeared on the market, which occupy a small area and are easy to carry after being folded. However, in the process of folding and unfolding the foldable bicycle, manual operation is required, and many locking and fixing mechanisms are provided, which is inconvenient for many users who do not understand the mechanical structure. Sometimes the exhibition is not in place, and it may cause safety hazards. And the unfolding degree of existing collapsible bicycles is fixed and non-adjustable, and cannot be suitable for riders of all statures.

Contents of the invention

The invention aims at the deficiencies of the existing folding bicycles, and provides an electric foldable bicycle with simple structure and convenient use.

The technical scheme adopted in the present invention is:

The electric telescopic bicycle includes several parts such as an electric telescopic frame, a steering mechanism, wheels, a power system and a braking system. The fork and the rear fork are connected by a rotating shaft; a large gear is set in the middle of the beam; the inner ring of the large gear is a threaded structure, which cooperates with the vertically placed screw, the outer ring of the large gear meshes with the pinion, and the motor is installed under the beam. Its output end is connected with the pinion; the lower end of the lead screw is fixedly connected with the upper end of the vertical middle rod, and the lower end of the middle rod is connected with the front rod and the rear rod respectively through the rotating shaft; the front end of the front rod is connected with the middle part of the front fork through the rotating pair , and pass through the groove in the middle part of the front fork to be connected with the steering mechanism through a rotating pair, and the rear end of the rear rod is connected with the middle part of the rear fork through a rotating pair.

A vehicle seat is provided on the top of the leading screw, and a slide bar that is slidingly matched with the crossbeam is provided at the bottom of the vehicle seat.

The length of the front fork is equal to that of the rear fork.

The part between the front fork and the middle rod on the said front rod is equal to the length of the rear rod.

The point where the front bar intersects with the front fork is the midpoint of the front fork; the point where the rear bar intersects the rear fork is the midpoint of the rear fork.

The end of the front fork is connected with the front wheel, and the end of the rear fork is connected with the rear wheel.

A driving motor and a braking system are installed in the rear wheel.

The upper half of the steering mechanism can be folded along the front and rear directions; the top of the steering mechanism is the left and right handlebars that can be folded inward.

The advantages of the present invention are: the bicycle can be driven by a motor, and it can be unfolded or retracted within 5-10 seconds. The operation is simple and convenient, and it is suitable for everyone to use; Height and length, and self-locking at any position; the retracted bicycle has an approximate hexahedral structure, occupies a small area, can be put into a suitcase, and is extremely convenient to carry and store.

Description of drawings

Fig. 1 is the front view when described bicycle is unfolded;

Fig. 2 is the left side view when described bicycle unfolds;

Fig. 3 is a top view when the bicycle is deployed;

Figure 4 is a perspective view of the bicycle when it is unfolded;

Figure 5 is a front view of the bicycle after shrinking;

Figure 6 is a left side view of the bicycle after shrinking;

Figure 7 is a top view of the bicycle after shrinking;

Fig. 8 is a perspective view of the bicycle after shrinking.

Labels in the figure:

1-beam; 2-front fork; 3-rear fork; 4-big gear; 5-lead screw; 6-pinion; 7-motor; 8-middle rod; 9-front rod; 10-rear rod; Seat; 12-slider; 13-front wheel; 14-rear wheel; 15-steering mechanism; 16-pedal; 17-handlebar.

Detailed ways

The present invention provides an electric retractable bicycle. The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1-Fig. 4, the bicycle includes several parts such as an electric telescopic vehicle frame, a steering mechanism, wheels, a power system and a braking system. Wherein, the structure of the electrically telescopic vehicle frame is as follows: the front and rear ends of the crossbeam 1 are respectively connected with the front fork 2 and the rear fork 3 through the rotating shaft; the middle part of the crossbeam 1 is provided with a large gear 4; Cooperate with the vertically placed lead screw 5, the outer ring of the large gear 4 meshes with the pinion 6, the motor 7 is installed under the beam 1, and its output end is connected with the pinion 6; the lower end of the lead screw 5 is connected to the vertical middle The upper end of the rod 8 is fixedly connected, and the lower end of the middle rod 8 is connected with the front rod 9 and the rear rod 10 respectively through a rotating shaft; the top of the screw 5 is provided with a vehicle seat 11, and the bottom of the vehicle seat 11 is provided with a slide bar 12 that is slidingly matched with the crossbeam 1 . The front end of front bar 9 is connected with front fork 2 middle parts by swivel pair, and after passing through the groove of front fork 2 middle parts, is connected with steering mechanism by swivel pair, and the rear end of back bar 10 is connected with the middle part of rear fork 3 by swivel pair.

Wherein, the length of the front fork 2 and the rear fork 3 is equal; the part between the front fork and the middle rod on the front rod 9 is equal to the length of the rear rod 10; point; the point where the rear rod 10 intersects with the rear fork 3 is the midpoint of the rear fork 3 .

The end of the front fork 2 is connected to the front wheel 13, and the end of the rear fork 3 is connected to the rear wheel 14. Drive motor and brake system are installed in rear wheel 14, and storage battery is arranged in the hole of rear fork 3. A foldable pedal 16 is installed on the front bar 9 . The upper half of the steering mechanism 15 can be folded along the front-rear direction; the top of the steering mechanism is the left and right handlebars 17 that can be folded inward.

When shrinking, turn on the motor 7, and the motor 7 drives the pinion 6 to rotate, and then drives the lead screw 5 to move downward through the large gear 4, so that the front rod 9, the rear rod 10, the front fork 2 and the rear fork 3 are all in the direction of the lead screw 5 move closer. After the leading screw 5 moves to the bottom limit, the motor 7 stops working; the pedal 16 is put away, the upper half of the steering mechanism 15 is folded backward, and the handlebar 17 is folded, that is, the whole shrinking process is completed. The shrunk bicycle occupies a small space and is easy to carry and store, as shown in Figures 5-8.

The unfolding process is opposite to the shrinking process, and the operation can be stopped at any time during the unfolding process, and can be in a locked state at any position, so as to adjust the length and height of the bicycle.

Claims (5)

1. electric telescopic bicycle, but comprise several parts of vehicle frame, steering hardware, wheel, power system and brake system of electric expansion, it is characterized in that,

But the structure of the vehicle frame of described electric expansion is: the rear and front end of crossbeam (1) is connected 3 with front fork (2) with back vent respectively) be connected by rotating shaft; The middle part of crossbeam (1) arranges big gear wheel (4); The inner ring of big gear wheel (4) is helicitic texture, cooperate with the leading screw (5) of vertical placement, the outer ring of big gear wheel (4) and miniature gears (6) engagement, motor (7) is installed in the below of crossbeam (1), and its mouth is connected with described miniature gears (6); Captive joint with the upper end of vertical king-rod (8) in the lower end of leading screw (5), the lower end of described king-rod (8) is connected 10 with front bar (9) with rear bar) be connected by rotating shaft respectively; The front end of front bar (9) is connected by revolute pair with front fork (2) middle part, and be connected by revolute pair with described steering hardware after passing the groove at front fork (2) middle part, the rear end of rear bar (10) is connected by revolute pair with the middle part of back vent (3); The top of described leading screw (5) arranges vehicle seat (11), and the bottom of vehicle seat (11) arranges the slide bar (12) with crossbeam (1) bearing fit; The end of described front fork (2) connects front-wheel (13), and the end of back vent (3) connects trailing wheel (14); Drive motor and brake system are installed in the described trailing wheel (14).

2. a kind of electric telescopic bicycle according to claim 1 is characterized in that, the equal in length of described front fork (2) and back vent (3).

3. a kind of electric telescopic bicycle according to claim 1 is characterized in that, the part between described front bar (9) goes up from the front fork to the king-rod and the equal in length of rear bar (10).

4. a kind of electric telescopic bicycle according to claim 1 is characterized in that, the point that described front bar (9) and front fork (2) intersect is positioned at the mid point of front fork (2); The point that described rear bar (10) and back vent (3) intersect is positioned at the mid point of back vent (3).

5. a kind of electric telescopic bicycle according to claim 1 is characterized in that, the first half of described steering hardware can be folding along fore-and-aft direction; The top of steering hardware is the left and right sides handlebar that can inwardly fold.

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