CN201183567Y

CN201183567Y - Multi-functional tetracycle

Info

Publication number: CN201183567Y
Application number: CN 200820031870
Authority: CN
Inventors: 马迪生
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-02-14
Filing date: 2008-02-14
Publication date: 2009-01-21
Anticipated expiration: 2018-02-14

Abstract

The utility model relates to a multifunctional four-wheel manpower bicycle which solves the problem that old friends are unsafe to go out by riding a bicycle or a tricycle. The frame of the four-wheel manpower bicycle comprises a front fixed frame and a rear fixed frame which are connected by a telescopic mechanism; a steering mechanism includes a steering spindle; the upper end thereof is connected with a vehicle handle and the lower end thereof is connected with a level connecting rod, both ends of which are respectively connected with a steering pull rod; the other end of the steering pull rod is connected with a front wheel spindle; the two sides of the rear wheel spindle are movably connected with a supporting frame respectively. The multifunctional four-wheel manpower bicycle operates stably; the steering mechanism thereof operates conveniently and flexibly; the steering stability is good; the safety performance can be improved, and the rear frame can be provided with a shopping basket; the multifunctional four-wheel manpower bicycle can be not only used for carrying persons, but also can be used for carrying cargo, and is especially suitable for the use of the elderly with each age level. By adding a supporting mechanism, the multifunctional four-wheel manpower bicycle can be used as an indoor body-building bicycle, thereby meeting the indoor body-building needs of the elderly.

Description

The multifunction four-wheel bicycle

Technical field

The utility model relates to the four-wheel bicycle and man.

Background technology

By the vehicle three-wheel vehicle that the bicycle transformation forms, can mannedly also can freight.The three-wheel vehicle shape is like a kind of combination of rickshaw and bicycle.Three-wheel vehicle is divided into former and later two parts, and there is a wheel that can turn to the front portion, and handlebar, bicycle bell, brake, pedal and vehicle seat are with the wheel at chain drive rear portion.The three-wheel vehicle rear portion mainly is the compartment, and the compartment can be a loading space, can be the compartment of taking two people side by side also, and the anti-canopy that can fold is installed on the compartment, and spring and two wheels are housed below.But, the three-wheel vehicle poor stability, the adult is convenient to operation and is grasped, and muscle power is than weak person or the wayward operation of the elderly.

People have designed and have been convenient to the quadricycle that the child uses on the basis of three-wheel vehicle, the quick four-wheel body-building vehicle of a kind of children is disclosed as Chinese patent 97225433.1, form by front-wheel, trailing wheel, vehicle frame, seat, brake gear and power and direction mechanism, pedal is installed in the frame slot, guiding principle rope one end connects pedal, the other end connects the U-shaped wheel, the U-shaped wheel is contained on the transmission shaft by flywheel, retracing spring is contained on the U-shaped wheel side, and the motion of bearing circle pinion tooth bar drives joystick and rotates control front-wheel direction.

Summary of the invention

In order to solve the problem that exists in the above-mentioned background technology, the utility model provides a kind of the elderly of being convenient to manipulate and is used for the multifunction four-wheel bicycle of body-building.

Concrete structural design scheme is as follows:

The multifunction four-wheel bicycle, comprise vehicle frame, four wheels, chain drive, footstep mechanism, seat cushion, handlebar and steering hardwarees, the vehicle frame front portion is provided with two front-wheels 7 by propons main shaft 5, the rear portion is provided with two trailing wheels 14 by back axle main shaft 18, chain drive is positioned at the vehicle frame middle part, and connect back axle main shaft 18, it is characterized in that:

Described vehicle frame comprises fixedly vehicle frame of preceding fixedly vehicle frame and back; Before fixedly vehicle frame connect to form by last fixed support 8 and following fixed support 9, its rear end is connecting telescopic tube, last fixed support 8 front ends are connecting and are turning to sleeve 3; Back fixedly vehicle frame front portion is connecting expansion link, and the back fixedly expansion link of vehicle frame and the telescopic tube of preceding fixedly vehicle frame are connected;

Described steering hardware comprises and turns to main shaft 4, turn to main shaft 4 upper ends connecting handlebar, the bottom is located on the propons main shaft 5 by bearing, its lower end captive joint horizontal brace rod 30, the horizontal brace rod two ends are connecting steering track rod 31 respectively, the other end of steering track rod 31 is connecting and is turning to U-shaped bar 6, turn to the closed end of U-shaped bar 6 connecting front wheel spindle, turn to the open side correspondence of U-shaped bar 6 to be provided with pin-and-hole, propons main shaft 5 two ends are respectively equipped with the pin pipe, the corresponding opening that turns to U-shaped bar 6 that is positioned at pin-and-hole of pin pipe, steering yoke bolt is plugged in pin-and-hole and the pin pipe by bearing.

Described back axle main shaft 18 both sides are flexibly connecting bracing frame 22 respectively.

Useful technique effect of the present utility model is embodied in following several aspect:

1, the utility model adopts the four-wheel structure, and 4 are stressed, and four-wheel increases with contact area of ground, driving steadily, safety performance improves, and can establish Shopping Basket on the back vehicle frame, can be used for mannedly, also can be used for cargo transport, is particularly suitable for the inferior the elderly's use of all ages.

2, steering hardware of the present utility model is simple in structure, and is flexible to operation, and steering stability is good.

3, this four-wheel bicycle and man can be used as cycling-trainer and uses by setting up supporting mechanism, has satisfied the needs of the elderly's indoor body-building.

Description of drawings

Fig. 1 is the utility model structural representation,

Fig. 2 is the birds-eye view of Fig. 1,

Fig. 3 is the right elevation of Fig. 1,

Fig. 4 is the steering hardware scheme drawing,

Fig. 5 is the partial enlarged drawing of Fig. 4.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

Embodiment:

Comprise vehicle frame, four wheels, chain drive, footstep mechanism 10, seat 19, handlebar and steering hardwarees referring to Fig. 1, Fig. 2 and Fig. 3 multifunction four-wheel bicycle, the vehicle frame front portion is equipped with two front-wheels 7 by propons main shaft 5, front-wheel 7 diameters are 14 inches, the rear portion is equipped with two trailing wheels 14 by back axle main shaft 18, back brake disc 15 is installed on the hind axle, trailing wheel 14 diameters are 16 inches, chain drive is positioned at the vehicle frame middle part, and connection back axle main shaft 18, chain drive comprises flower keyboard 11, flywheel 16 and chain 12, and flower keyboard 11 is equipped with on the pedal spindle 20.

Vehicle frame comprises fixedly vehicle frame of preceding fixedly vehicle frame and back; Before fixedly vehicle frame connect to form by last fixed support 8 and following fixed support 9, its rear end is connecting telescopic tube, last fixed support 8 front ends are connecting and are turning to sleeve 3; Back fixedly vehicle frame 13 front portions is connecting expansion link, and the back fixedly expansion link 21 of vehicle frame 13 and the telescopic tube 23 of preceding fixedly vehicle frame is connected, and then fixedly by seat support 17 seat 19 is installed on the vehicle frame 13.

Steering hardware comprises and turns to main shaft 4, turn to main shaft 4 upper ends connecting handlebar 1, brake-applying handle 2 is housed on the handlebar 1, turn to main shaft 4 bottoms to be installed on the propons main shaft 5 by axle sleeve 27 and bearing 28, turn to main shaft 4 lower end captive joints horizontal brace rod 30, the horizontal brace rod two ends are connecting steering track rod 29 respectively, the other end of steering track rod 29 is connecting and is turning to U-shaped bar 6, turn to the closed end of U-shaped bar 6 connecting front wheel spindle, turn to the open side correspondence of U-shaped bar 6 to be provided with pin-and-hole, propons main shaft 5 two ends are respectively equipped with pin pipe 26, the pin pipe 26 corresponding openings that turn to U-shaped bar 6 that are positioned at pin-and-hole, steering yoke bolt 24 passes pin-and-hole and is plugged in the pin pipe 26, and bearing 25 is housed on the stub 24, sees Fig. 4 and Fig. 5.

Back axle main shaft 18 both sides are flexibly connecting bracing frame 22 respectively, easily the folding bracing frame.

This car aims at friend person in middle and old age design, can travel outdoors by bike, and seat can be installed one 29 * 36 * 30 Shopping Basket down, can make things convenient for to such an extent that remove food market, supermarket shopping by bike.

Bracing frame on the back axle main shaft is propped up, no matter blowing and raining is stayed indoors and taken exercises at the indoor body-building vehicle that can be used as.

Claims

1, multifunction four-wheel bicycle, comprise vehicle frame, four wheels, chain drive, footstep mechanism, seat cushion, handlebar and steering hardwarees, vehicle frame is anterior to be provided with two front-wheels (7) by propons main shaft (5), the rear portion is provided with two trailing wheels (14) by back axle main shaft (18), chain drive is positioned at the vehicle frame middle part, and connect back axle main shaft (18), it is characterized in that:

Described vehicle frame comprises fixedly vehicle frame of preceding fixedly vehicle frame and back; Before fixedly vehicle frame connect to form by last fixed support (8) and following fixed support (9), its rear end is connecting telescopic tube, last fixed support (8) front end is connecting and is turning to sleeve (3); Back fixedly vehicle frame front portion is connecting expansion link, and the back fixedly expansion link of vehicle frame and the telescopic tube of preceding fixedly vehicle frame are connected;

Described steering hardware comprises and turns to main shaft (4), turn to main shaft (4) upper end connecting handlebar, the bottom is located on the propons main shaft (5) by bearing, its lower end captive joint horizontal brace rod (30), the horizontal brace rod two ends are connecting steering track rod (31) respectively, the other end of steering track rod (31) is connecting and is turning to U-shaped bar (6), turn to the closed end of U-shaped bar (6) connecting front wheel spindle, turn to the open side correspondence of U-shaped bar (6) to be provided with pin-and-hole, propons main shaft (5) two ends are respectively equipped with the pin pipe, the corresponding opening that turns to U-shaped bar (6) that is positioned at pin-and-hole of pin pipe, steering yoke bolt is plugged in pin-and-hole and the pin pipe by bearing.

2, multifunction four-wheel bicycle according to claim 1 is characterized in that: described back axle main shaft (18) both sides are flexibly connecting bracing frame (22) respectively.