CN2582976Y

CN2582976Y - Folding tricycle

Info

Publication number: CN2582976Y
Application number: CN 02279617
Authority: CN
Inventors: 买建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-18
Filing date: 2002-10-18
Publication date: 2003-10-29
Anticipated expiration: 2012-10-18

Abstract

The utility model relates to a folding tricycle, which comprises a tricycle frame, tricycle handles, a saddle, a driving device, a steering mechanism, etc. The utility model is characterized in that a front pipe and a back pipe of a cross beam of the tricycle frame are connected by slide telescopic pipes. A left handle and a right handle of a front tricycle handle are connected in a hinge mode with a handle vertical pipe. The handle can be deflected backwards. An upper vertical pipe and a lower vertical pipe of a back saddle are connected by slide telescopic pipes. A pedal crank of the driving device is divided into two sections. An axial rotating shaft is arranged on an interface. Thus, pedals can be rotated and folded inwards into a crank plane. The driving device is characterized in that a flywheel is driven by a main chain wheel through two auxiliary chain wheels to drive a front wheel on the same side of the flywheel and drive a front wheel and a back wheel on the other side to rotate. A turning steel cable is arranged between the lower end of the handle vertical pipe of the tricycle handle, and a tricycle back fork. The back wheel is driven to turn by the steel cable. The tricycle can be folded and gathered and the shape of a tricycle body can be changed. The utility model has the advantages of reduction of occupation space, convenient indoor storage for families and convenient journey carrying and ride. The utility model has the advantages of convenience for a remote tour or a trip activity, reduction of touring fatigue and enhancement of trip interests.

Description

Folding three-wheeled bicycle

Affiliated technical field

The utility model discloses a kind of folding three-wheeled bicycle of collapsible condensation.

Background technology

At present, bicycle is still the single main traffic means of transport of China, along with the bicycle industrial expansion, the bicycle series kind is increasing, and style is different, function is constantly perfect, but with regard to existing people's habits and customs and living conditions, everybody feels that generally existing bicycle volume is big, and indoor storage erect-position area is big, go out to carry inconvenience, be difficult for keeping.

Summary of the invention

The purpose of this utility model just is to solve the defective that existing bicycle exists, and adopts the mode of folding condensation to improve bicycle structure, with reduced volume, reduces the erect-position area, is easy to carry and takes care of, and a kind of folding three-wheeled bicycle is provided for this reason.

The technical solution of the utility model is as follows:

This folding three-wheeled bicycle comprises vehicle frame, handlebar, saddle, driving device and steering hardware etc.Its principal feature is: the forward and backward pipe of cross member of frame is that the slip telescopic tube connects, after manage pipe before the slidably indentation; Front truck is connected the left hand and right hand handle with the handle riser hinge, handgrip can be turned back backward; The upper and lower standpipe of rear cradling also connects for the slip telescopic tube; The pedal crank of driving device divides two joints, and interface is established axial axis of revolution, can make pedal revolution invagination enter the crank plane.More than the condensation of turning back at five positions make the tricycle volume-diminished, reduce in the erect-position space.

Driving device be by head sprocket by two auxilliary chain sprocket drive flywheels, driving the front vehicle wheel of flywheel homonymy, and the front vehicle wheel and the rear wheel that drive other side rotate; Establish turning wire rope between handlebar handle riser lower end and the bicycle back fork, rotate, rear wheel is turned to by the wire rope traction back vent.

Vehicle frame comprises the front-axle beam of crossbeam and downside thereof, the handlebar bracket of front end, the oblique handle riser cover and the oblique back vent vertical pipe sleeve of bracket upper end.Crossbeam divides forward and backward pipe, and cover back pipe connects for the bearing fit telescopic tube in the preceding pipe, and spring pin pin head is pressed in barrel bolt hole before the pin head of set spring pin stretches out in the pipe behind the two interface, after manage in the preceding pipe of slidably indentation.

Handlebar branch left hand and right hand and be respectively equipped with down change and handle riser on hinge be connected, the left hand and right hand handle can be turned back backward around handle riser and be closed up; Handle riser divides two sections, and the two interface is established the hinge hinge, and casing clamp is established in the outside in addition, to keep the handlebar normal operating condition, when needs are turned back, moves on the casing clamp, and handlebar top can wrap the condensation of turning back backward of page hinge.

Saddle bottom standpipe divides upper and lower two joints, and last joint is inserted in down the joint sliding connection, on the two interface in the joint pin head of the set spring pin of pipe stretch out down joint standpipe pin-and-hole, press spring pin pin head, on save standpipe slip retraction under in the joint standpipe saddle whereabouts.

Driving device comprises pedal, crank, axis, head sprocket, auxilliary sprocket wheel, flywheel, front vehicle wheel and rear wheel.The pedal crank divides two joints, and interface is established axial revolution spindle nose near a joint of pedal and is connected with another nodal axisn hole normal-running fit, and the square frame casing clamp is established in the outside in addition, the normal operating condition that can keep crank, when needs are turned back, will move on the casing clamp, can make pedal revolution invagination enter the crank motion plane; Driving device is by being positioned at head sprocket on the front beam of frame axis by the flywheel on the left and right auxilliary chain sprocket drive right front wheel of front-axle beam front axle, and then drives its homonymy right front wheel, and drives the front left wheel of other side and the rear wheel that is positioned on the bicycle back fork axle rotates.

Steering hardware comprises left hand and right hand, bicycle back fork and the steel cable between the two, and hypomere handle riser lower end turn to cross bar and back vent.By turning to steel cable fixing on the cross bar, successively, connect the back vent shoulder by the following steel cable sleeve pipe that is provided with of pipe behind handlebar bracket both sides and the crossbeam, rotate with the control back vent, rear wheel is turned to.

The characteristics of folding three-wheeled bicycle are by folding condensation, change body shapes, reduce shared locus, not only be convenient to family's indoor storage, and make things convenient for long-term travel to carry and ride, for strange land tourism or the trip activity condition of providing convenience, can alleviate journey fatigue, improve people's trip interest.

Description of drawings

Accompanying drawing drawing say and look like down:

Fig. 1 is folding three-wheeled bicycle front view

Fig. 2 is a folding three-wheeled bicycle handle bar left view

Fig. 3 is folding three-wheeled bicycle birds-eye view

The specific embodiment

Introduce embodiment of the present utility model below in conjunction with accompanying drawing.

Folding three-wheeled bicycle comprises vehicle frame, handlebar, saddle, driving device and steering hardware etc.

Vehicle frame comprises the front-axle beam (15) of crossbeam (11) and downside thereof, the handlebar bracket (16) of front end, the oblique handle riser cover (7) and back vent vertical pipe sleeve (17) of bracket upper end.Crossbeam divides forward and backward pipe (12) (13), managing (13) behind the cover in the preceding pipe (12) is scalable sliding connection, the pin head of the interior set spring pin (14) of pipe (13) stretches out preceding pipe (12) pin-and-hole behind the two interface, press spring pin (14) pin head, back pipe (13) is slidably managed in (12) before the indentation.

Hinge is connected handlebar branch left hand and right hand (1) and on being respectively equipped with down change (2) (3) and handle riser (4), and left hand and right hand handle (1) can be turned back backward around handle riser (4) and be closed up; Handle riser (4) divides two sections, and the two interface is established hinge hinge (5), and casing clamp (6) is established in the outside in addition, can keep the handlebar normal operating condition, when needs are turned back, will move on the casing clamp (6), and handlebar top can wrap a page hinge (5) condensation of turning back backward.

Saddle bottom standpipe divides upper and lower two joint (18) (20), it is scalable sliding connection that last joint (18) is inserted in down joint (20), the pin head that saves the set spring pin of pipe (19) in the standpipe (18) on the two interface stretches out joint standpipe (20) pin-and-hole down, press spring pin (19) pin head, on save standpipe (18) slip retraction under and save in the standpipe (20).

Driving device comprises pedal (21), crank (22), axis (24), head sprocket (25), auxilliary sprocket wheel (27), flywheel (28), front vehicle wheel (29) and rear wheel (30).Pedal crank (22) divides two joints, interface is established axial revolution spindle nose with the level near a joint of pedal (21) and is connected with another nodal axisn hole normal-running fit, square frame casing clamp (23) is established in the outside in addition, the normal operating condition that can keep crank (22), when needs are turned back, to move on the casing clamp (23), can make crank (22) revolution pedal (21) invagination enter the crank motion plane; Driving device is by being positioned at head sprocket (25) on the front beam of frame axis (24) by the flywheel (28) on left and right auxilliary sprocket wheel (27) the transmission right front wheel of front-axle beam front axle (26), and then drive flywheel homonymy right front wheel (29), and drive the front left wheel (29) of other side and be positioned at rear wheel (30) rotation on bicycle back fork (31) axle.

Steering hardware comprises left hand and right hand (1), bicycle back fork (31) and the steel cable between the two (8), and hypomere handle riser (4) lower end turn to cross bar (9) and back vent (31).By turning to cross bar (9) to go up fixing steel cable (8), successively, connect back vent (31) shoulder by the following steel cable sleeve pipe (10) that is provided with of pipe (13) behind handlebar bracket (16) both sides and the crossbeam, rotate with control back vent (31), rear wheel (30) is turned to.

Claims

1. a folding three-wheeled bicycle comprises vehicle frame, handlebar, saddle, driving device and steering hardware, it is characterized in that the forward and backward pipe of cross member of frame connects for the slip telescopic tube; Front truck is connected the left hand and right hand handle with the handle riser hinge; The upper and lower standpipe of rear cradling also connects for the slip telescopic tube; The pedal crank of driving device divides two joints, and interface is established axial axis of revolution, can make pedal revolution invagination enter the crank plane; By two auxilliary chain sprocket drive flywheels, driving the front vehicle wheel of flywheel homonymy, and the front vehicle wheel and the rear wheel that drive other side rotate driving device by head sprocket; Establish turning wire rope between handlebar handle riser lower end and the bicycle back fork, rotate, rear wheel is turned to by the wire rope traction back vent.

2. folding three-wheeled bicycle according to claim 1, it is characterized in that vehicle frame comprises the handlebar bracket of crossbeam, the front-axle beam that reaches downside, front end, the oblique handle riser cover and the oblique back vent vertical pipe sleeve of bracket upper end, crossbeam divides forward and backward pipe, the cover back is managed and is bearing fit in the preceding pipe, barrel bolt hole before the pin head of set spring pin stretches out in the pipe behind the two interface, press spring pin pin head, after manage before the slidably indentation in the pipe.

3. folding three-wheeled bicycle according to claim 1 is characterized in that handlebar branch left hand and right hand handle, is respectively equipped with down change, is connected with handle riser upper end hinge, and left hand and right hand is closed up turning back backward around handle riser; Handle riser divides two sections, and the two interface is established the hinge hinge, and casing clamp is established in the outside in addition, moves on the casing clamp, and handlebar top can wrap the condensation of turning back backward of page hinge.

4. folding three-wheeled bicycle according to claim 1, it is characterized in that saddle bottom standpipe divides upper and lower two joints, last joint is inserted in down the joint sliding connection, joint standpipe pin-and-hole under the pin head of the set spring pin of pipe stretches out in the joint on the two interface, press spring pin pin head, last joint standpipe slip retraction saves down in the standpipe, and saddle falls.

5. folding three-wheeled bicycle according to claim 1, it is characterized in that driving device comprises pedal, crank, axis, head sprocket, auxilliary sprocket wheel, flywheel, front vehicle wheel and rear wheel, the pedal crank divides two joints, interface is established axial revolution spindle nose and another nodal axisn hole sliding connection near pedal one joint, can make pedal revolution invagination enter the crank motion plane; Driving device is by being positioned at head sprocket on the front beam of frame axis by the flywheel on the left and right auxilliary chain sprocket drive right front wheel of front-axle beam front axle, and then drives its homonymy right front wheel, and drives the front left wheel of other side and the rear wheel that is positioned on the bicycle back fork axle rotates.

6. folding three-wheeled bicycle according to claim 1, it is characterized in that steering hardware comprises left and right handles, bicycle back fork and the steel cable between the two, and hypomere handle riser lower end turn to cross bar and back vent, by turning to steel cable fixing on the cross bar, successively by the following steel cable sleeve pipe that is provided with of pipe behind handlebar bracket both sides and the crossbeam, connect the back vent shoulder, rotate, rear wheel is turned to the control back vent.