CN2113937U

CN2113937U - Infinitely variable speed tricycle

Info

Publication number: CN2113937U
Application number: CN91225166U
Authority: CN
Inventors: 张琳
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-09-23
Filing date: 1991-09-23
Publication date: 1992-08-26

Abstract

The utility model relates to an infinitely variable speed tricycle in a horizontal type, which is a novel manpower driving traffic vehicle. Aiming at the weakness of a common third wheel bicycle, the utility model adopts a rocker type two stage chain transmission driving device, an arm type infinitely variable speed device which is provided with adjustable force and integrated witha rocker, and a plane steering device with double cranks. The utility model has the advantages of labour saving, increased vehicle speed and increased stability and comfort in riding.

Description

Infinitely variable speed tricycle

The utility model relates to a kind of manpower transport facility.

The principal organ of common tricycle and the mode of riding are such.By component set-up one-level chain type driving devices such as crank, chain drum, flywheel and trailing wheels, alternately scrunching also downwards by biped, rotating crank travels car.But because the crank radius of rotation is less, the tangential component that the power that scrunches obtains on the shape path of motion of crank stress point garden is little, unstable, the relatively effort of riding.Its transmission system and actuating device one utilize guiding top wheel that driving chain is turned back, and walk around the more flywheel formation forward and backward speed-changing mechanism of another number of teeth on the rear axle.Its weak point is that the two-stage speed change is only arranged, and is very poor to load carrying ability, road condition change comformability.The steering hardware of this car is by front-wheel, front fork, handlebar parts and the preceding standpipe of vehicle frame is coaxial vertically is connected together.There are problems such as bodywork height is big, uncomfortable, the poor stability of riding in this device.

The purpose of this utility model is that a kind of improved tricycle will be provided, and it can be saved muscle power, the raising speed of a motor vehicle effectively, increase the stability and the traveling comfort of car.

The purpose of this utility model is to realize like this.Actuating device is to increase the chain gearing that one-level is made of left rocker, conduction chain and flywheel before original mechanism, and the two ends of conduction chain are linked to each other with rocker arm, walks around on two flywheels on axis idler sprocket bottom hanging over.Biped back and forth scrunches rocking bar and is with second stage chain gearing to drive car to travel when riding.Because rocking bar is long, amplitude of fluctuation is little, chain and rocking bar point of connection motion radian are mild, and the strength that biped scrunches can be utilized effectively and can reduce physical demands.Transmission system is located on the first order transmission device of actuating device, constitute by the long hole shape slide rail of rocker arm, the slide block that can move along slide rail and the control system of moving slider, its gear shift mode is by the adjusting slider position, and the stroke that changes conduction chain is to change transmitting ratio.This transmission system is adjustable continuously, has strengthened the adaptive capacity that resistance to motion is changed.The steering hardware of this car is contained in bottom of frame, becomes the floor plan form from front to back by front-wheel, hinges, connecting rod, steering handle, pulls the handle on steering handle top and can realize handling maneuver.

Advantage of the present utility model is: sitting posture is ridden, and health and seat back offset, stationkeeping, and driving car can help bringing into play maximum and scrunch potentiality by backrest; Drive conduction chain with slide block and move up and down along rocking bar and can realize infinite speed variation, the structure of transmission system is simplified more; Steering hardware is installed in bottom of frame, can reduce the car load height greatly, has increased the stability of travelling.

Concrete structure of the present utility model by down with embodiment and accompanying drawing thereof provide.

Fig. 1, Fig. 2 are lateral plan and the birds-eye vieies according to the horizontal stepless change tricycle that the utility model proposes.

Below in conjunction with details and the service condition of each accompanying drawing detailed description according to the concrete device that the utility model proposes.

The principal organ of this car comprises rocking bar traction secondary chain-driving actuating device, adjustable arm of force transmission system and plane double crank steering hardware with the rocking bar one, actuating device is connected with conduction chain (23) by slide block (4) by the rocking bar among Fig. 1 (3), conduction chain is walked around the flywheel (16) on the axis (27), hang on the idler sprocket (12), adorn a chain sprocket (15) on the axis, constitute by second stage driving chain (17), rear flywheel (20), rear axle (19), trailing wheel (18).When biped scrunches rocking bar pedal (22), then propulsive effort can be delivered to trailing wheel drive car and travel.The part body and the rocking bar of transmission system are loaded on one, the movable sprocket wheel (21) on rocking bar top is connected with chain (5) with fixed chain wheels (31) on the rocker shaft, and slide block (4) is serially connected in this chain, rocking bar backboard place drives the long hole shape slide rail (32) of an installation slide block, rocker shaft (7) left end is adorned a miniature gears (6) and a quadrant gear (8) engagement, the other end of the little axle (33) of fastening quadrant gear is adorned a gear shift pedal (9), link to each other with connecting rod (10) between gear shift pedal and chain tensioner spindle (11), adorning one in the vehicle frame lower end can be for the slideway (24) of idler sprocket slip.When needing to adjust riding speed, depress or mention the speed governing pedal and then can drive slide block and move up or down along the rocking bar slide rail by fixed chain wheels, thereby change the moment of the pulling force of chain to the rocker shaft center, realize speed change, steering hardware is to adorn a hinges (2) in vehicle frame cantilever (28) inboard, this hinge one end installs the wheel shaft of front-wheel (1), the other end and ∪ type turn between the bottom bar (34) of steering handle (14) and link to each other with connecting rod (13), whole device is installed in bottom of frame, constitutes the double crank steering swivel system of floor plan.Pull the handle (25) of two vertical rods (35) of steering handle (14) with hand, then driving front-wheel is that the deflection of the left and right sides, center changes travel direction with the moveable hinge chain rivet.

Claims

1, utilize manpower to drive, be applicable to and take and the horizontal stepless change tricycle of cargo-carrying, the two-stage chain-driving actuating device that this car front portion has two rocking bars that can back and forth scrunch (3) to drive, the continuously variable unit that the control system that one slide block (4) that can slide along rocking bar slide rail (32) is arranged and adjust the slide position constitutes and place bottom of frame, by steering handle (14), connecting rod (13), the double crank steering hardware of travel(l)ing rest (2) and front-wheel (1) floor plan, it is characterized in that a long hole shape slide rail (32) is respectively arranged on two rocking bars (3), the two ends of one conduction chain (23) are connected with slide block (4) and slide block is placed in the slide rail, there is an axis (27) at the car middle part, install a chain drum (15) on the axis, and two flywheels (16), conduction chain walk around on the axis two flywheels from the bottom turn back with slideway (24) on idler sprocket (12) solderless wrapped connection, constitute second stage transmission device with chain (17) between axis chain drum and the back flying wheel (20), a movable sprocket wheel (21) is respectively adorned on two rocking bar tops, constitute chain drive with chain (5) between the fixed chain wheels (31) on this sprocket wheel and the rocker shaft (7), slide block (4) is serially connected on this chain, the rocker shaft left end is adorned a miniature gears (6), this gear is meshed with a quadrant gear (8), quadrant gear is fastened on the little axle (33), the little axle other end is adorned a treadle (9), link to each other with connecting rod (10) between treadle and the chain tensioner spindle (11), adorn a travel(l)ing rest (2) in the vertical rod before vehicle frame (28), support one end is installed front-wheel (1), and the other end links to each other with steering handle (14) with connecting rod (13).

2, device according to claim 1, it is characterized in that the form with antifriction-bearing box matches between two rocking bars (3) lower end and the rocker shaft (7), the adjacent chain with both sides in conduction chain (23) stage casing is that an angle of 90 degrees reverses and links to each other, hang on the idler sprocket (12) after making this chain walk around axis flywheel (20), the axis of idler sprocket is perpendicular to the ground, chain tensioner spindle (11) is contained in slideway (12) and goes up also and can slide along slideway, change with the traverse of adjusting slide block (4) conduction chain when moving up and down, turning to steering handle (14) is the U type, the bottom bar of steering handle (34) is in the below of seat (26), its mid point links to each other with the vehicle frame bottom girder with hinge, and two vertical rods (35) of steering handle lean out seat surface from the seat left and right sides.