CN103832524A - A dual-purpose bicycle for climbing stairs and level ground - Google Patents

Abstract

The invention relates to a dual-purpose bicycle for climbing stairs and flat ground, which is characterized in that it is composed of a vehicle frame, a seat saddle, a shock absorbing spring, a front wheel, a rear wheel, a bicycle chain, a hand brake, and a pedal mechanism. The wheels are composed of a brake disc, a center The disc, the central gear, four planetary gears, and four arc vanes are composed of each arc vane and the corresponding planetary gear are installed on the center disc through a hinge connection, and there is a limit groove on the center disc. There is a concave limit hole at both ends of the groove, and the central gear has a limit spring and a limit ball. The circular-arc vane rotates around the hinge at a certain angle to convert the circular wheel into an impeller, and the rim of the impeller approaches the Archimedes spiral line corresponding to the size of the stairs, so as to realize the stairs; compared with other bicycles The dual-purpose bicycle for climbing stairs and flat ground has the characteristics of being easy to ride faster on stairs, safer for climbing stairs, and more interesting for riding, and can be used for a new bicycle stair climbing competition.

Description

A dual-purpose bicycle for climbing stairs and level ground

Technical field:

The invention relates to a dual-purpose bicycle for climbing stairs and level ground, and belongs to the technical field of entertainment machinery.

Background technique:

Along with the development of society, the structure and the function of bicycle are also constantly improved, and the bicycle on the market mainly contains mountain bike, common bicycle, hands and feet dual power exercise bicycle etc. at present. The wheels of these bicycles are all designed as round wheels, which are only suitable for driving on flat ground, and it is relatively difficult to travel on stairs. Only a few car enthusiasts can ride slowly and bumpily on stairs.

Invention content:

In order to solve the problem that existing bicycles are difficult to run on stairs, the technical solution adopted in the present invention is: a dual-purpose bicycle for climbing stairs and flat ground, which is characterized in that it consists of a frame, a saddle, a shock absorbing spring, a front wheel, The rear wheel, car chain, hand brake and pedal mechanism are composed. The wheel is composed of a brake disc, a central disc, a central gear, four planetary gears, and four circular-arc vanes. Each circular-arc vane passes through the corresponding planetary gear. The hinge connection is installed on the center plate, and the circular arc vane rotates at a certain angle relative to the center plate to convert the circular wheel into an impeller. The central gear is connected through a hollow half shaft, and the other hollow half shaft is connected with the central disk. The two hollow half shafts are matched with the bicycle axle through bearings. There is a limiting groove on the central disk, and there are A sunken limit hole, the central gear has a limit spring and a limit ball.

The invention utilizes the motion characteristics of the Archimedes spiral impeller when climbing stairs, and uses the rim of the circular arc vane to approach the Archimedes spiral. Compared with other bicycles, the present invention has the characteristics of being easy to ride on the stairs faster, safer to climb stairs, and more interesting to ride, and can be used for a new bicycle competition event of climbing stairs.

Description of drawings

Figure 1: A schematic diagram of a stair-climbing and flat-ground dual-purpose bicycle driving on flat ground

Figure 2: Schematic diagram of the impeller

Figure 3: Schematic diagram of the limit mechanism

Figure 4: A schematic diagram of a dual-purpose bicycle for climbing stairs and flat ground

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

A dual-purpose bicycle for stair climbing and flat ground, characterized in that it consists of a frame (2), a saddle (1), a shock absorbing spring (9), a front wheel (4), a rear wheel (8), and a chain (7) , handbrake (3), pedal mechanism (6) is formed. The front and rear wheels are the same, consisting of brake discs (12), center discs (5), sun gears (11), planetary gears (10, 18, 19, 20), and arc vanes (13, 21, 22, 23) . Each circular arc vane (13) is fixed with the corresponding planetary gear (10), and is installed on the central disk (5) by hinge connection, and the circular arc vane (13, 21, 22, 23) is opposite to the central disk (5). ) rotates at a certain angle to convert the circular wheel into an impeller. The impeller is shown in Figure 3. The outer wheel of the impeller approaches the Archimedes spiral line corresponding to the size of the stairs, thereby realizing the stairs. Brake disc (12), central gear (11) link to each other by a hollow half shaft, another hollow half shaft links to each other with center disc (5), and two hollow half shafts cooperate with bicycle axle (24) by bearing. There is a limit groove (16) on the center disk (5), a concave limit hole is arranged at both ends of the limit groove (16), and the center gear (11) has a limit spring (14) and a limit Balls (15).

When the bicycle kneads the handbrake (3), the brake disc (12) stops rotating due to the frictional force, and the driver continues to step on the pedal mechanism (6) so that the center disc (5) continues to rotate, and the brake disc (12) on the center disc (5) The planetary gears (10, 18, 19, 20) produce a clockwise speed, which produces a differential speed with the stationary sun gear (11), and then the circular arc vanes (13, 21, 22, 23) pass through the corresponding planetary gears ( 10, 18, 19, 20) after turning a certain angle clockwise, the limit ball (15) enters the limit hole concaved at one end of the limit groove (16), and under the elastic force of the limit spring (14), the circle The arc wheel blades (13, 21, 22, 23) are fixed, thereby realizing that the circular wheel is converted into an impeller, and then starts to travel on the stairs (17), and the schematic diagram of climbing the stairs is as shown in Figure 4.

After climbing the stairs, the driver pinches the handbrake (3), steps on the pedal mechanism (6) counterclockwise, and the planetary gears (10, 18, 19, 20) on the center plate (5) produce counterclockwise speeds, which are the same as those at rest. The sun gear (11) of the center gear (11) just produces differential speed, and then after the arc vanes (13, 21, 22, 23) rotate a certain angle counterclockwise through the corresponding planetary gears (10, 18, 19, 20), the limit ball ( 15) Enter the concave limit hole at the other end of the limit groove (16), under the elastic force of the limit spring (14), the circular arc vanes (13, 21, 22, 23) are fixed, thereby realizing the impeller conversion It is a round wheel to realize walking on flat ground, as shown in Figure 1.

Claims (1)

1.Yi Zhongpa building and level land dual-purpose bicycle, it is characterized in that by vehicle frame, seat saddle, damping spring, front-wheel, trailing wheel, blockchain, parking brake, footstep mechanism composition, wheel is by brake disc, spider, sun gear, four planetary wheels, four circular arc wheel blade compositions, every circular arc wheel blade is connected through the hinge and is arranged on spider with corresponding planetary wheel, circular arc wheel blade rotates certain angle relative to spider can make circle wheel convert impeller to, the wheel rim of impeller approaches Pa corresponding with staircase step size building spiral of Archimedes, drg, sun gear is connected by a hollow half axle, another hollow half axle is connected with spider, two hollow half axles match with bicycle shaft by bearing, on spider, there is a limited impression, there is a recessed spacing hole at limited impression two ends, sun gear has a limit spring and spacing ball.

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