CN2038470U - Foldable tricycle manually driving by lever and gears - Google Patents

Abstract

The utility model discloses a foldable tricycle manually driving by a lever and gears, which is composed of a driving mechanism which is composed of a lever and gears, a tricycle beam telescoping mechanism, a foldable tricycle hopper, a brake mechanism, a steering mechanism, etc. The utility model can load goods of 100 kg. In the course of running, compared with a common tricycle, the utility model has the advantages of labor saving and strong climbing capacity. In addition, the foldable tricycle manually driving by a lever and gears can be folded into an article of which the length is 1300 millimeters, the width is 450 millimeters and the height is 900 millimeters without any tool in one minute and be moved upstairs to be stored through common stairs. The utility model is suitable for the transportation of necessities of family life and people who are not good at riding bicycles.

Description

Foldable tricycle manually driving by lever and gears

The utility model relates to a kind of improved People-Powered Vehicle, particularly a kind of lever and gear wheel transmission folding type manual tricycle.It is suitable for the transportation of family life articles for use and the people that is bad at by bike uses.

Along with the continuous development of national economy and the raising day by day of people's lives, the people presses for a kind of manual tricycle easy to use and transports daily living article.In prior art, though manual tricycle also is made up of transmission device, Che Liang, braking mechanism, wagon box and steering hardware etc., can transport daily necessities equally, bring convenience to people's lives.But because on the structure design, exist the weak point of following two aspects: (one) floor area is big.General tritruck floor area is 2.7 * 1 sq ms, and light kiddie car floor area also needs 2 * 0.8 sq ms, and this uses just for living space family hard up, that particularly live upstairs and has brought very big difficulty when depositing; (2) crank mechanism that constitutes by crank, axis, pedal, in motion, pedal is the center with the axis, crank is long to be that radius rotates.At this moment, bipod is applied to the power on the left and right pedal downwards, though size is constant, whenever circles, and the moment that produces on the axis changes between 0～1～0～1～0, and this just makes manpower produce waste.Simultaneously, two dead points also can appear when pedal whenever circles.When three-wheel vehicle goes up a slope, because the variation of this moment and the existence at dead point can make the people feel to pedal and ride special effort.In addition,, certainly will so not only increase the length of car load, also make the chain lengthening moving the distance (promptly 34 centimetres) that is equivalent to two crank length behind the wagon box for the heel that makes the people is not run into wagon box.Long chain is easy to generate when travelling under the uneven situation of road and takes off chain and make transmission failure.

The purpose of this utility model be exactly to overcome the weak point that exists in the above-mentioned prior art and provide a kind of floor area little, pedal and ride novel manual tricycle laborsaving, easy to use.

This is suitable for later-model purpose and can reaches by following measures:

One changes driving system into the lever and gear wheel transmission device of being made up of left and right sides pedal, left and right sides lever, axis left and right sides quadrant gear, left and right sides free-wheel clutch, transmission shaft, big gear wheel, driven wheel and drive wheel etc.Make people's pin be added in moment on pedal alternate the and dead point can not occur between 0.8～1.Therefore manpower also just can be fully utilized.Under the situation of travelling on same load, the same road surface, will feel laborsaving.Owing to there is not the dead point, hill climbing ability has also just strengthened.Do not adopt chain owing in the whole drive system simultaneously, thereby can not produce the phenomenon of transmission failure in any travels down.

Its two, change the vehicle frame that connects front-wheel and wagon box into form car beam telescoping mechanism by telescopic girder, beam casing and latching device.When travelling, telescopic girder can be pulled out and locked in beam casing; When depositing, latching device is unclamped, advance telescopic girder beam casing to lock again.Like this, just can make car load length under storage configuration than shortening 0.35 meter under the running condition.

Its three, wagon box and vehicle frame are combined together, two trailing wheels are contained in respectively on the left and right riser of wagon box, the forward and backward riser of wagon box is made folding.Like this, just can make wagon box deposit or situation that not loading is travelled under, width narrows down to 0.35 meter by original 0.8 meter.

Adopt the manual tricycle of above measure manufacturing have compact conformation, volume little (volume is 1.6 meters * 0.8 meter * 0.9 meter when travelling), laborsaving, hill climbing ability strong, deposit characteristics such as floor area is little.Do not need any instrument, just can foldable growth in one minute 1.3 meters, wide 0.45 meter, high 0.9 meter, can pass through common stair, move to upstairs and deposit.

Below with reference to accompanying drawing the utility model is elaborated.

Fig. 1 is the front elevation of the utility model concrete structure.

Fig. 2 is the birds-eye view of the utility model concrete structure.

Fig. 3 is the front elevation of the utility model driving system.

Fig. 4 is the schematic top plan view of the utility model driving system.

Fig. 5 is the constructional drawing of free-wheel clutch.

Fig. 6 is the longitudinal sectional view of the utility model car beam telescoping mechanism.

Fig. 7 is the folding preceding birds-eye view of the folding wagon box of the utility model.

Fig. 8 is the birds-eye view after the folding wagon box of the utility model folds.

At first by Fig. 1, Fig. 2 overall structure of a kind of concrete lever and gear wheel transmission folding type manual tricycle of the utility model as can be seen.Constitute steering swivel system by handlebar (1), soldering at preceding pipe (2), front fork (3), front-wheel (4) and the front fender universal components such as (5) of telescopic girder (6) front end.Constitute car beam telescoping mechanism by telescopic girder (6) and beam casing (8) and latch segment (11), eccentric shaft (12), clamp handle (13) etc.General-duty seat saddle (15) is set in the seat saddle sleeve pipe (16) that is welded on the pulley yoke (18), with its locking, makes a saddle can regulate height according to the people of different heights with seat saddle latching device (17).Pedal (19a), right pedal (19b), lever left (20a), right lever (20b), pulley (44), rope (43), left quadrant gear (24a), right wing generating gear (24b), big gear wheel (35), drive wheel (39) and wagon box left side riser (37) etc. by left foot and constitute transmission device.Constitute folding wagon box by wagon box left side riser (37), preceding left riser (48), preceding left riser (47), the right riser (54) of wagon box, middle base plate (60), right base plate (52) and back left and right riser (51), (53) etc.Pleasure boat (66) and pleasure boat mud plate (67) are contained in the below of the right riser of wagon box (54).Can adorn the internal expansion type band-type brake in addition on drive wheel, the pincerlike lock of dress side-pull type on front fork at the left and right brake lever of respectively adorning of handlebar, because these all are general parts, does not just draw among the figure.Long and two-short dash line among Fig. 1, Fig. 2 overall shape after lever and gear wheel transmission folding type manual tricycle is foldable that drawn.

Further set forth driving system of the present utility model with reference to Fig. 3, Fig. 4:

Two left and right pedals of bicycle general-duty (19a), (19b) are contained in the front end of left and right lever (20a), (20b) respectively, left and right lever (20a), (20b) intermediate support kink are at the left and right two ends of the axis (21) of riser (37) front lower place, a wagon box left side, two circlip for shafts (22) are stuck in the groove (23) on the left and right two ends of axis (21), and left and right lever (20a), (20b) all can not skidded off from axis (21).The other end of left and right lever (20a), (20b) is made quadrant gear (24a), (24b) respectively, and is meshed with left and right free-wheel clutch external gear (25a), (25b) respectively.With reference to Fig. 5, free-wheel clutch is made of external gear (25), steel ball (26), very heavy (27), power-transfer clutch fuse (28), silk retaining (29), spacer (30) and very heavy spring (31).Can only unidirectional delivery power.The fuse of free-wheel clutch (28) connects with key (32) with transmission shaft (33).Transmission shaft (33) is with the below of two bearings (34) frame at wagon box left side riser (37).Big gear wheel (35) and the fastening Jie And of the left end of transmission shaft (33) are meshed with driven wheel (36) on the fastening axle skin (38) that is contained in drive wheel (39).Drive wheel connects with wagon box left side riser (37) by bearing (41) and live axle (40).Respectively be provided with mount hole (42a), (42b) at left and right lever (20a), (20b) middle part, two of a rope that intensity is big, expansion and contraction is little (43) is hung over rope (43) on the pulley (44) that is installed on the pulley yoke (18) with left and right mount hole (42a), (42b) snapping ， And respectively.Respectively establish block (45a), (45b) in order to limit the maximum pendulum angle of left and right quadrant gear (24a), (24b) in riser (37) both sides, a wagon box left side.

When travelling, the people holds handlebar (1) and rides on the saddle (15), and bipod is respectively stepped on left and right pedal (19a), (19b).If left foot presses down with the foot and pedals, forcing left foot to pedal (19a) drive lever left (20a), left quadrant gear (24a) is that garden heart inhour is rotated with axis (21).Because the effect of engaging tooth clockwise rotates the free-wheel clutch external gear (25a) on the left side.(determine during installation that free-wheel clutch can transferring power when external gear clockwise rotates, inhour rotate the time-division from).Left clutch fuse (28a) also clockwise rotates, and forces transmission shaft (33) and big gear wheel (35) to clockwise rotate by key (32), drives driven wheel (36) and drive wheel (39) and does the inhour rotation.Under the promotion of ground reaction force, make three-wheel vehicle to overtake.Meanwhile, to drive right lever (20b), right pedal (19b) and right wing generating gear (24b) by rope (43) and pulley (44) be that the garden heart clockwise rotates with axis (21) to lever left (20a).Because the effect of engaging tooth makes the free-wheel clutch external gear (25b) on the right do inhour idle running.After left quadrant gear (24a) is run into left block (45a), change right crus of diaphragm again and press down with the foot and pedal right pedal (19b) to force right pedal (19b) to drive right lever (20b), right wing generating gear (24b) be that garden heart inhour is rotated with axis (21).Because the effect of engaging tooth, the free-wheel clutch external gear (25b) on the right is clockwise rotated, right clutch fuse (28b) also clockwise rotates, force transmission shaft (33) and big gear wheel (35) to clockwise rotate by key (32), promote driven wheel (36) and drive wheel (39) and do the inhour rotation, and then three-wheel vehicle is continued to overtake.Meanwhile right lever (20b) by rope (43) and pulley (44) drive lever left (20a), left foot pedals (19a) and left quadrant gear (24a) is that the garden heart clockwise rotates with axis (21).Because the effect of engaging tooth makes the free-wheel clutch external tooth crop rotation inhour idle running on the left side.After right wing generating gear (24b) is run into right block (45b), change left foot again and press down with the foot and pedal left foot and pedal ... left and right like this pin alternately presses down with the foot and pedals, and three-wheel vehicle is travelled continuously.

Set forth the telescopic girder system below with reference to Fig. 6.Telescopic girder (6) is with the steel pipe manufacturing of high-intensity square-section, and front end is connected with preceding pipe (5) soldering, and the rear end is with the fastening baffle plate (9) that is connected and fixed of detouchable.A beam casing (8) is welded with steel plate in front portion at wagon box left side riser (37).Telescopic girder (6) is packed in the beam casing (8), make the gap of the both sides of telescopic girder (6) and beam casing (8) two facades moderate, telescopic girder (6) slides not loose not tight in beam casing (8), and the upper and lower certain interval that leaves.Projection (10) is established in below, telescopic girder rear end, and a buting iron (7) is welded above the middle part.Be provided with telescopic girder catch gear (seeing that the A-A among Fig. 6 analyses and observe) in beam casing (8) front lower place.This catch gear is made up of latch segment (11), eccentric shaft (12), clamp handle (13) and jump ring (14).When travelling, telescopic girder (6) is pulled out from beam casing (8), the rear end lower projection (10) of telescopic girder (8) enters beam casing (8), the rear end and beam casing (8) the above-below direction gap of telescopic girder (6) are eliminated, baffle plate (9) is blocked by beam casing (8), and telescopic girder (6) can not be drawn out from beam casing (8).The buting iron (7) of top, telescopic girder this moment (6) middle part has just skidded off beam casing (8).Clamp handle (13) is drawn forward, and eccentric shaft (12) rotates, and makes latch segment (11) Shang Yi And compress telescopic girder (6).At this moment buting iron (7) just in time is stuck in the front end top of beam casing (8), make telescopic girder (6) must not after move.When depositing, to pusher, eccentric shaft (12) backward rotation draws latch segment (11) to move down with clamp handle (13) in elder generation.With hand beam casing (8) is upwards lifted then, telescopic girder (6) just can advance in the beam casing (8), and is again that the preceding zip of clamp handle (13) is tight.

At last, with reference to Fig. 7, Fig. 8 the folded bicycle bucket is described.The two ends, right side of wagon box left side riser (37) use hinge Xiao (46) hinged with preceding left riser (48), back left riser (51) left end respectively.The right-hand member of preceding left riser (48), the left riser in back (51) is hinged with hinge Xiao (46) with the left end of preceding right riser (47), the right riser in back (53) respectively, and two ends, wagon box right side riser (54) left side are hinged with hinge Xiao (46) with the right-hand member of preceding right riser (47), the right riser in back (53) respectively.Wagon box left bottom plate (61) is fixedly connected in the below, right side of wagon box left side riser (37), connects with hinge (49) and screw (50) with the left side of base plate in the wagon box (60).The right side of base plate in the wagon box (60) connects with hinge (49) and screw (50) with the left side of the right base plate of wagon box (52), the plate of left and right riser (48), (47) and back left and right riser (51), (53) below had constituted folding wagon box along on (56) before load was placed on.On two flange (65) of right riser (54) right side central of wagon box, turn round (62) with torsion axis (63) frame one torsion spring (46) and bullet.The elastic force of torsion spring acts on the right riser (54) of wagon box and bullet is turned round on (62).Under external force, bullet is turned round (62) and can be hidden in the right riser of wagon box (54), and when external force was eliminated, bullet was turned round (62) and ejected under the elastic force effect of torsion spring (64).(59 〕 ， And adorn a carrying handle (58) with screw (50) to open an oblong aperture in the middle of the right of the right base plate of wagon box (52).Respectively weld one at riser (37) two ends, right side, a wagon box left side and take and collude (57), and respectively adorn a hasp (55) at the right riser of wagon box two ends.When wagon box folded, a hand was pressed bullet and is turned round (62), and portable carrying handle of another (58) translated into the right base plate of wagon box (52) on the base plate in the wagon box (60).Then with base plate in the wagon box (60) and the right base plate of wagon box (52) pull-up together to the upright position.Then with the hinged place of preceding left and right riser (48), (47) to pusher, the hinged place of back left and right riser (51), (53) is pushed away forward, make the right riser of wagon box (54) close, then forward and backward hasp (55) and forward and backward taking are colluded (57) and put up to wagon box left side riser.The folding back of wagon box situation is seen Fig. 8.When wagon box is decontroled, earlier front and back hasp (55) is taken with front and back and colluded (57) and separate, again the right riser of wagon box (54) is drawn to the right, then base plate in the wagon box (60) is removed and snapped into plate along on (56), at last the right base plate of wagon box (52) is removed and snapped into plate, snap into bullet simultaneously and turn round (62) below along on (56).Situation after wagon box is decontroled is seen Fig. 7.

Claims (2)

1, a kind of lever and gear wheel transmission folding type manual tricycle is made up of transmission device, vehicle frame, wagon box, braking mechanism and steering hardware, it is characterized in that:

(a) pedal [19a] by left foot, right pedal [19b], lever left [20a], right lever [20b], rope [43], pulley [44], left side quadrant gear [24a], right wing generating gear [24b], axis [21], left side free-wheel clutch external gear [25a], right free-wheel clutch external gear [25b], very heavy [27], steel ball [26], silk retaining [29], left clutch fuse [28a], right clutch fuse [28b], transmission shaft [33], big gear wheel [35], driven wheel [36] and drive wheel [39] are formed the lever and gear wheel transmission device;

(b) form car beam telescoping mechanism by telescopic girder [6], beam casing [8], latch segment [11], eccentric shaft [12] and clamp handle [13];

(c) by base plate [60], wagon box right base plate [52] and hinge [49] in wagon box left side riser [37], preceding left riser [48], preceding right riser [47], the right riser [54] of wagon box, back left riser [51], back right riser [53], hinge pin [46], wagon box left bottom plate [61], the wagon box, have contact with [57], hasp [55] and form and fold wagon box.

2, three-wheel vehicle according to claim 1, it is characterized in that the rear end below of telescopic girder (6) is provided with projection (10), top, the middle part buting iron (7) that is welded.

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