CN2330565Y

CN2330565Y - Pedicab

Info

Publication number: CN2330565Y
Application number: CN 98202855
Authority: CN
Inventors: 杜宏飞
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-04-02
Filing date: 1998-04-02
Publication date: 1999-07-28
Anticipated expiration: 2008-04-02

Abstract

The utility model relates to a pedicab, and a user sits on the pedicab in a back-leaning posture. The utility model comprises a driving front wheel, two turning back wheels, a chain wheel positioned at the front end of the pedicab, and a turning vertical shaft for adjusting front and back positions and back-leaning angles by following a vertical beam. When the pedicab turns, the pedicab body synchronously tilts inwards, and the smaller a turning radius is, the larger the tilting angle of the pedicab body is in order to overcome the centrifugal force. The pedicab has two turning modes, wherein the first turning mode is that handles are positioned at both sides of a pedicab seat to conveniently control the pedicab to turn when the upper half body of the user leans back to any angle and the second turning mode is that the user uses the back to drive a backrest to deflect to control the pedicab to turn. Thus, the utility model provides a practical walk-replacing tool for persons with obstacle upper limbs.

Description

Manual tricycle

Described in the utility modelly can when turning, vehicle body be tilted to the inside, overcoming centnifugal force, and two kinds of steering operation modes be arranged for adopting the manual tricycle of layback sitting posture.

In the existing all kinds of three-wheel vehicle, most center of gravity height, poor stability can not resemble when especially turning that vehicle body tilts overturning under action of centrifugal force easily to the inside the bicycle.Also have some low seat sitting posture manual tricycles, sprocket wheel is connected with steering front wheel, handling maneuver and pedaling are interfered with each other, and traditional handlebar position is restricted people's sitting posture layback angle.In addition, the various forms of hand-propelled tricycles that use for the disabled person all at the lower limb obstacle and the upper limbs person of perfecting design (comprising wheelchair), but do not meet the desirable walking-replacing tool of its wounded or disabled characteristics for the sound and two upper limbs obstacle of two lower limb person.

The purpose of this utility model is to provide a kind of new-type three-wheel vehicle, and its steering safety, center of gravity is low, windage is little, the operation of convenient layback sitting posture, can also be used by the sound and two upper limbs obstacle of two lower limb person.

The utility model manpower three-wheel mainly includes vehicle body, one front-wheel, two guiding trailing wheels, sprocket wheel, flywheel, chain, vehicle seat, upright beam, kingpin and direction control mechanism is characterized in that: sprocket wheel is rotatably installed on body structure, passes through chain, flywheel links to each other with front-wheel, make front-wheel as driving wheel, upright beam and body contact and scalable front and back position and hypsokinesis angle, kingpin links to each other with upright beam rotationally, and two trailing wheels link to each other with kingpin, and be a left and right sides deflection with kingpin, as wheel flutter, direction control mechanism on this basis has two kinds: 1. turn to being positioned at the vehicle seat bottom, two ends are to being bent-up to the vehicle seat both sides, as steering tiller, will turn to handle to be connected with the kingpin counter steer.2. the spill backrest is separated with vehicle seat, and fix with the upper end of a connecting rod, the lower end of connecting rod links to each other with the vehicle body posterior end, and to make backrest and connecting rod be the fulcrum left-right rotation with the lower end of connecting rod, and the connecting rod middle part is linked to each other with trailing wheel bonded assembly structure with kingpin.

The utility model has the advantages that steering safety, and bring convenience for upper limbs obstacle person uses.

Accompanying drawing is the utility model keystone configuration scheme drawing.

Now in conjunction with the accompanying drawings, and by following embodiment the utility model is described in detail.

As accompanying drawing as showing, sprocket wheel (1) is installed in rotation on vehicle body (5) front end, by chain (2), flywheel (3) is connected with front-wheel (4), make front-wheel (4) as driving wheel, liftable vehicle seat (9) is installed on upright beam (13) top, center fixed has turning to of gear (8) that (6) are installed in rotation on upright beam (9) top, kingpin (14) is connected with two trailing wheels (20) (21), the upper end is fixed with gear (16), kingpin (14) is installed in rotation on the structure that upright beam (13) upper and lower side stretches out backward, make upright beam (13) parallel with kingpin (14), and make gear (8) and gear (16) interlock, when turning handle (7), by gear (8) and gear (16), make kingpin (14) contrarotation, to meet people's operational custom of turning.Backrest (10) and vehicle seat (9) join and adjustable angle, because steering tiller (7) is positioned at vehicle seat (9) both sides, make when being in any layback angle above the waist, and both hands can both be held steering tiller (7) easily.The utility model is to realize no upper limbs operation like this: backrest (10) is separated with vehicle seat (9), and it is fixing with connecting rod (15) upper end, at connecting rod (15) middle part, by Ω shape part (17), link to each other with trailing wheel (20) (21) bonded assembly structure (18) (19) with kingpin (14), it is amesiality only to need when turning to that the back is driven backrest (10), can turn to, realize that no upper limbs operation needs at front-wheel " backpedalling brake " to be installed, with pedal control brake.The utility model overcomes the hole that the mode that turns to centnifugal force is achieved in that has a row to be used for fixing upright beam (13) respectively on upper beam (11) and underbeam (12), upright beam (13) top has a hole corresponding with a round of upper beam (11), upright beam (13) bottom has a slotted hole corresponding with a round of underbeam (12), last, select a hole to insert screw rod in the underbeam respectively, to found beam (13) and last, underbeam is fixed, the upper end of upright beam (13) is receded, the size of leaning angle is by selecting different position, hole adjustment up and down for use, make the upright sweptback effect of beam be: when angle of two trailing wheels (20) (21) deflection, for vehicle body, two trailing wheels (20) (21) are one high and one low, vehicle body (5) was to the equidirectional inclination of turning when this state made actual turning, the degree of body inclination depends on sweptback angle of upright beam (13) and turn radius, upright beam (13) angle of inclination is big more, the body inclination degree is big more, and turn radius is more little, and the body inclination degree is big more.Another effect of two rounds in upper beam (11) and the underbeam (12) is a front and back position of regulating upright beam (13), uses to adapt to different height persons.In addition, the utility model kingpin (14) place axis is positioned at two hind axles (22) before the time, kingpin (14) and two trailing wheels (20) (21) can be done the as a whole cardan wheel of regarding as, the characteristics of this structure are to make the straight-line travelling of car load stable, high directivity.

Claims

1, a kind of manual tricycle, include vehicle body (5), front-wheel (4), trailing wheel (20) and (21), sprocket wheel (1), chain (2), flywheel (3), vehicle seat (9), upright beam (13), kingpin (14), vehicle seat (9), backrest (10) is characterized in that a sprocket wheel (1) is rotatably installed on body structure, by chain (2), flywheel (3) is connected with front-wheel (4), upright beam (13) is connected with lower and upper cross-member (11) (12) and scalable front and back position and hypsokinesis angle, kingpin (14) is connected with upright beam (13) rotationally, and two trailing wheels (20) (21) are connected as wheel flutter with kingpin (14), and directional controller is connected with kingpin (14).

2, manual tricycle according to claim 1 is characterized in that turning to (6) are positioned at vehicle seat (9) bottom, and steering tiller (7) is done to being bent-up to vehicle seat (9) both sides in two ends, and is the despining direction with kingpin and is connected.

3, according to the described manual tricycle of claim 1, it is characterized in that backrest (10) is separated with vehicle seat (9), and fix with the upper end of connecting rod (15), connecting rod (15) lower end is connected with the vehicle body rear lower, and to make backrest (10) and connecting rod (15) be fulcrum with the lower end of connecting rod (15), left-right rotation makes connecting rod (15) middle part link to each other with trailing wheel bonded assembly structure (18) (19) with kingpin (14) by Ω shape part (17).