CN104590459A - Folding backward tricycle - Google Patents

Abstract

The invention discloses a folding backward tricycle, which is formed by connecting a pedal thruster behind a folding two-wheel wheelchair. The folding backward tricycle is more labor-saving and faster to ride than push. Compared with an existing two-wheel bicycle, the folding backward tricycle is relatively stable and comfortable to ride, is smaller in occupied space after being folded, and can be put into a car trunk to be matched with a car; the rear pedal thruster can be rapidly assembled and disassembled; one-third of people, who cannot ride the two-wheel bicycle, can relatively conveniently load cargo and pick up others by the tricycle. 80% of residents start from homes to five points, such as markets, supermarkets, kindergartens, primary schools and hospitals no more than 1km according to the statistics, and can easily reach the destination within 10 minutes by the folding backward tricycle, so that the problems can be solved; physical exercise is achieved; low-carbon, energy-saving and environment-friendly targets are achieved; the folding backward tricycle is the most ideal vehicle for the common residents, and has a wide market prospect.

Description

A kind of folding backwards-run tricycle

Technical field:

The present invention relates to a kind of bicycle, especially one can folding tricycle.

Background technology:

Tricycle is people's vehicles of common, and market is very wide, but three-wheel vehicle not the used time occupation of land side, also had many folding tricycle technical schemes afterwards, but or because operating inconvenience, or because of complex structure, fail the marketization.Before 4 years, I releases folding backwards-run tricycle certain market, but folding still convenient not, and drive wheel is reasonable not in side.Another also existing folding push-chairs is used widely, but the speed that shoves along is too slow, and trammer also works hard.

Summary of the invention:

The object of the invention is to provide one and can folds, the easy to operate tricycle of ride comfort.In order to solve background technology existing problems, the present invention utilizes following technical scheme: it to take turns on push-chairs basis collapsible two to sow pin below and step on propelling unit and become three-wheel vehicle.This propelling unit can quick despatch, after taking away or push-chairs.But wheelchair folding mode and existing different.Wheelchair support divides left and right two sides, separately has sitting face, backrest, toe board.Foot-operated propelling unit divides two sections, front and back.Leading portion is a rectangle frame, before be five block sets, after upper end be welded with bolt, a jack, lower end is welded with two dops.Back segment and two wheel bicycles are left part roughly the same after removing handlebar, front fork front-wheel, bag is scraped vehicle frame, axis, pedal, chain wheel, chain, is flown, lock, trailing wheel, schoolbag frame, cushion, brake hand, before it, there are a draw-in groove and a jack in upper end, there is draw-in groove side, lower end two.Above making a T-shaped vertical rod in addition, crossbeam front end is welded with radius stay, and middle part, afterbody two side are welded with screw, and an axis is welded in center vertical direction.Axis by five covers, insert lower end in foot-operated propelling unit leading portion five block sets put one pullover, fix with propping up a hook bolt, pullover two sides are welded with screw.Make main connecting rod and time connecting rod, main connecting rod is a rectangle frame, and respectively there is a jack at four angles, and bar shaped time two, connecting rod respectively has jack, once forms with engineering plastics.Wheelchair right support intermediate transverse girder has two groups of screws, and for hinging, a middle root post has a screw for filling front wheel spindle, last root post is upper and lower, respectively has a screw, after a root post has a screw, also there are two groups of screws front end below, after hand in vertical rod, spring pin is housed.Same left socle intermediate transverse girder is welded with two jacks, on front column weld two screws, B-pillar has screw fill front wheel spindle, after a root post be welded with a screw, after hand vertical rod is welded with two jacks up and down, below front end be welded with a draw-in groove.Sitting face is connected with wheelchair right support with hinge on the right of rectangle frame, and the left side has two latches to insert on leftmost support in jack.Outside main connecting rod, jack aims at screw on Wheelchair support, on string, bolt connects, inner side jack to be aimed in T-shaped vertical rod bolt on screw string and is connected, and same time connecting rod jack one aims at screw on Wheelchair support, and other end to be aimed in T-shaped vertical rod bolt on screw string and connected.Backrest is also a rectangle frame, and there are two latches on the left side, and the right is welded with jack, and left side latch inserts in wheelchair left socle two jacks, and the right wheelchair right support upper spring pin inserts.Toe board is also a rectangle frame, and the right hinge is connected with wheelchair right support, and the left side leans against on wheelchair left socle draw-in groove.Dop below leading portion is blocked with draw-in groove below foot-operated propelling unit back segment front end, forwards makes draw-in groove above block bolt again, tightens with fly nut, advances jack on jack and back segment front portion of crying on leading portion rear portion naturally to aim at that time, put a lock, lock prevent stolen.Car load has installed.Operating sequence toe board turns over, sitting face is turned over, extracts spring pin, and then backrest forwards pulls back wheelchair both sides that be at this moment close to foot-operated propelling unit be folded state of the present invention, opens and takes down lock, back out the desirable lower foot-operated propelling unit of fly nut.Otherwise load onto propelling unit, push away before wheelchair two side direction, position-limited lever withstands main connecting rod, turning over left side latch under sitting face inserts in wheelchair left socle jack, turning over the left side under toe board leans against on wheelchair left socle draw-in groove, backrest turns round with in jack on the right of spring pin insertion backrest, is exactly that deployed condition of the present invention can travel.

Easy to operate, the light cheapness of the present invention.Have a kind of car as everybody knows in history in rickshaw, driver haul car haul guest's two legs run very arduous, had afterwards human hair understand trishaw just no one use rickshaw again, so two wheel barrows are made into trishaw, people necessarily like.Expand range of use after crowding barrow is made into trishaw can freight except pushing away people, 80% ordinarily resident according to statistics, from family to food market, supermarket, kindergarten, primary school, hospital's five points are all no more than 1 kilometer, ride Ben Che to arrive in 10 minutes, not hard, can deal with problems, take exercises again, and realize low-carbon (LC), energy-saving and environmental protection.Have steadily with two wheel bicycles than this car, ride comfort advantage.After this car is folding, occupation of land is taken turns also few voluntarily than two, can put in car trunk supporting with car.Order each car folding backwards-run tricycle by structure, name this car to make house indispensable by purposes, or bicycle for old people, wide market.

Accompanying drawing illustrates:

Fig. 1 is deployed condition structural representation of the present invention, Fig. 2 is folded state structural representation of the present invention, Fig. 3 is that the present invention rides propelling unit front segment structure schematic diagram, Fig. 4 is that the present invention rides propelling product rear section structure schematic diagram, Fig. 5 is wheelchair left socle structural representation of the present invention, Fig. 6 is wheelchair right support structural representation of the present invention, Fig. 7 is that the present invention takes turns chair seating face structural representation, Fig. 8 is wheelchair backrest structural representation of the present invention, Fig. 9 is toe board structural representation of the present invention, Figure 10 is the present invention's T-shaped vertical rod structural representation, Figure 11 is master of the present invention, secondary bar linkage structure schematic diagram.

Detailed description of the invention:

Below be described in further detail with reference to accompanying drawing with the concrete model car of the present invention one.It is by wheelchair right support 1 as shown in figs. 1-11, sitting face 2, armrest 3, backrest 4, hand is 5, cushion 6, schoolbag frame 7, mud guard 8, rear-wheel brake 9, trailing wheel 10, pedal 11, foot-operated propelling unit back segment 12, chain wheel 13, the near front wheel 14, wheelchair left socle 15, toe board 16, five covers 17, bolt 18, jack 19, 26, 27, 28, 29, 50, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, dop 20, five covers 21, brake hand is 22, rocking arm 23, upper draw-in groove 24, lower blocked slot 25, front bayonet slot 33, spring tongue 35, hinge screw 36, 37, 38, 39, 44, 45, 51, 52, screw 30, 31, 32, 34, 40, 41, 42, 43, 57, 58, 59, 60, 61, 62, latch 46, 47, 48, 49, radius stay 54, axis 55, pullover 56, left main connecting rod 63, right main connecting rod 64, left time connecting rod 65, right time connecting rod 66, off front wheel 80, Foot propeller leading portion 81 forms.

Method for making make as shown in drawings right Wheelchair support 1, sitting face 2, armrest 3, backrest 4, outsourcing hand 5, cushion 6, schoolbag frame 7, mud guard 8, rear-wheel brake 9, trailing wheel 10, the near front wheel 14, off front wheel 80, pedal 11, chain wheel 13, separately add chain and fly, toe board 16, foot-operated propelling unit back segment 12, leading portion 81, T-shaped vertical rod 53, wheelchair left socle 15, left main connecting rod 63, right main connecting rod 64, left time connecting rod 65, right time connecting rod 66, brake hand 22, wherein foot-operated propelling unit roughly the same two wheel bicycles be left portion after removing handlebar, front fork, front-wheel.

Erection procedure is, gets T-shaped vertical rod 53, and axis 55, insert on foot-operated propelling unit leading portion 81 in five block sets 17, connect with five covers, lower end puts pullover 56, fixes with a hook bolt.Get primary and secondary connecting rod jack 68,70,78 aim at successively screw 40,41,42, bolt connects on string, jack 67,69,77 aim at successively screw 59,57,61, bolt connects on string, jack 72,74,76, aim at the upper bolt of screw 60,58,62 string successively to connect, jack 71,73,75 aims at screw 31,32,30 successively, and on string, bolt connects.Get on the right of sitting face 2 and be connected with wheelchair right support with hinge, be connected on the right of toe board 16 with hinge with wheelchair right support, backrest 4 left side latch 48,49 inserts in jack 26,27 respectively.Load onto front-wheel, Wheelchair support is pushed away forward, position-limited lever 54, withstand main connecting rod 63,64, sitting face is turned over latch 46,47 for 2 times and is inserted jack 28,29, toe board turns over the left side for 16 times and leans against on draw-in groove 33, backrest turns round in spring pin 35 patchhole 50, get foot-operated propelling unit back segment before draw-in groove block dop 20, forwards, upper draw-in groove 24 blocks bolt 19, tighten with fly nut, now jack 19,79, naturally aligning, put a lock.It is exactly deployed condition of the present invention.Sitting face is turned over, toe board turns over, extract spring pin 35, backrest forwards is close to left socle, then two stands is pulled back to be close to propelling unit be exactly folded state of the present invention.Back out fly nut, taking off lock can take off the foot-operated propelling unit second half section.

Claims (3)

1. a folding backwards-run tricycle, it is sowed pin after two wheelchairs step on propelling unit by folding, and by T-shaped vertical rod, rectangle main connecting rod, bar shaped time connecting rod is formed by connecting, and it is characterized in that wheelchair has two supports in left and right, with sitting face, backrest, toe board combines, pin of sowing steps on propelling unit and two wheel bicycles remove handlebar, front fork, roughly the same, the two is by T-shaped vertical rod for the remaining part of front-wheel, rectangle main connecting rod, bar shaped time connecting rod couples together.

2. one folds backwards-run tricycle according to claim 1, it is characterized in that wheelchair has two supports in left and right, middle beam there are right support two groups of screws, front column is welded with two screws, rear column is welded with a screw, B-pillar there is a screw for filling off front wheel, there are two groups of screws following crossbeam front end, back hand is equipped with spring pin on column, middle beam is welded with leftmost support two jacks, front column is welded with two screws, rear edge column is welded with a screw, following crossbeam front end is welded with draw-in groove, back hand is vertical rod being welded with two jacks, separately there is sitting face, backrest, toe board, be hinged with right support middle beam on the right of sitting face, the left side has two latches to insert on left socle middle beams in two jacks, two, backrest left side latch inserts left socle back hand in two jacks in vertical rod, the right has a jack spring pin to stick in, be connected with right support by hinge on the right of toe board, the left side leans against on left socle draw-in groove.

3. one folds backwards-run tricycle according to claim 1, it is characterized in that foot-operated propelling unit divides two sections, front and back, leading portion is a rectangle frame, its front is that one section of steel pipe two fills five sleeve bowls, upper end, back is welded with bolt and jack, bottom is welded with two dops, second half section is half point after two wheel bicycles roughly the same, vehicle frame scraped by bag, axis, pedal, chain wheel, chain, fly, cushion, schoolbag frame, lock, brake handle, one section of channel-section steel is welded with in its front end, upper end is opened a draw-in groove and is welded with a jack, two dops are welded in lower end, draw-in groove blocks leading portion upper chuck below, draw-in groove blocks bolt above, to screw on thumb nut, front and back section has just coupled together, another also have T-shaped vertical rod, its entablatrance front end is welded with radius stay, middle part, afterbody two side is welded with screw, vertical direction is welded with axis below, lower end is equipped with pullover, pullover two sides are welded with screw, vertical connecting rod is that rectangle frame four angles respectively have a jack, bar shaped time two, connecting rod has jack, inside main connecting rod, jack aims at bolt connection on screw string in T-shaped vertical rod, outside jack aims at bolt connection on screw string on Wheelchair support, on secondary connecting rod, jack one aims at bolt connection on screw string in T-shaped vertical rod, other end and screw on Wheelchair support are aimed at the upper bolt of string and are connected.