CN102582747A

CN102582747A - Transformable shopping bicycle

Info

Publication number: CN102582747A
Application number: CN2012100666009A
Authority: CN
Inventors: 孙学锋; 孙飞; 王春
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-14
Filing date: 2012-03-14
Publication date: 2012-07-18
Anticipated expiration: 2032-03-14
Also published as: CN102582747B

Abstract

The invention relates to a transportation tool, in particular to a transformable shopping bicycle, which has the advantages that transformation is convenient and quick, a body of the transformed shopping bicycle is more compact and smaller, a rear wheel rolls to a front wheel and is combined together with the front wheel by simply pressing, pulling and lifting and by means of a sliding rail, the shopping bicycle becomes a shopping trolley with the characteristics of a wheelbarrow by the aid of a small support wheel, and the shopping trolley can enter a shop, can take various elevators and is convenient to go upstairs, so that a user can keep the shopping trolley closely all the time, and the stolen danger is decreased. Besides, the shopping trolley can be used for carrying articles so as to reduce use of shopping bags and plastic bags and further to be more environment-friendly.

Description

Distortion shopping bicycle

Technical field:

A kind of vehicle specifically are a kind of bicycles that can be deformed into shopping cart

Background technology:

Bicycle is a kind of simple and convenient vehicle, has had various types of bicycles, like folded bicycle, may be deformed to shopping cart, the distortion car of perambulator etc.Yet on distortion quick, on small and exquisite after the distortion, and practical level and Applicable scope also seems and lacks perfection, and these keys that whether can popularize just.

Summary of the invention:

A kind of bicycle that may be deformed to shopping cart, characteristics are that distortion is convenient and swift, and the shopping cart car body after the distortion is compact more; Through simply pressing, to draw, the operation of carrying by means of slide rail, makes trailing wheel be rolled to front-wheel, and together.By a support steamboat, become shopping cart with wheelbarrow characteristic.This shopping cart can pass in and out the shop, goes up various elevators, and the stair of topping bar are also more convenient.The user can make its body of keeping close, and reduces stolen danger.Available its heavy burden, shopping bag capable of reducing using, plastic bag, thereby environmental protection more.

Description of drawings:

What arrow marked among the figure is parts, and what no arrow straight line was marked is certain part of part or part.For front brake and the blockchain of succinctly not drawing.Fig. 1 is the bicycle pattern External view of riding; Fig. 2 is the shopping cart External view that is deformed into; Fig. 3 is the front view of shopping cart; Fig. 4 is the right elevation of shopping cart; Fig. 5 is the back view of bicycle pattern of riding; Fig. 6 is that the labour contractor locks the exploded view of (7); Fig. 7 is that the labour contractor locks (7), goes up the assembling plan view that rail is locked (6), upper front tube (12) and preceding handle (14), handle riser (15), slide rail (5) part; Fig. 8 is Fig. 7 " B-B " cross-sectional view, and Fig. 9 is Fig. 7 " A-A " cross-sectional view, and wherein the top boxed area is the partial enlarged drawing of clearance line bonded assembly bottom boxed area; Figure 10 is that Fig. 7 " A-A " cross section is at the cutaway view of head locking bolt (79) when leaving behind; Figure 11 goes up rail lock (6) and upper front tube (12) parts front elevation; Figure 12 is that Figure 11 " C-C " cross section is at the cutaway view of head locking bolt (79) when leaving behind; Figure 13 be Figure 11 " C-C " cross section head locking bolt (79) leave behind and turn on the cutaway view of rail lock-switch (60) after opening the rail lock; Figure 14 is the External view of preceding handle (14) and middle handle (11), has shown preceding two one or two locking bolt holes (73) of below; Figure 15 and Figure 16 disconnect device and disconnect the exploded view of device pallet (4) at two different directions; Figure 17 disconnects device and the birds-eye view that disconnects device pallet (4); Figure 18 is Figure 17 " D-D " cross-sectional view; Figure 19 is the state after pull bar (2) stretches, and for showing the position of chute, the chute top layer of having skimmed is exposed chute among the figure, can't see chute under the normal circumstances in the outside; Figure 20 is the assembling plan view of sprocket wheel (90), overriding clutch (9) and axis (101); Figure 21 is that Figure 20 " E-E " cross section gets into the cutaway view under the ratchet situation at ratchet (95); Figure 22 is that Figure 20 " E-E " cross section breaks away from the cutaway view under the ratchet situation at ratchet (95); Figure 23 is that Figure 20 " E-E " cross section is carved post (100) and caused the cutaway view under sprocket wheel (90) disengaging axis (101) situation between wheel pushing hands (94) and the pawl base (91) in being stuck in after pressing axis button (10); Figure 24 is the assembling plan view of sprocket wheel (90), overriding clutch (9), disconnector, following pipe (110) and chain stay (111); Figure 25 is Figure 24 " F-F " cross-sectional view; Figure 26 is Figure 25 " G-G " cross-sectional view; Figure 27 is a disconnector major part assembly drowing; Figure 28 is the groove face expansion drawing of hypostyle column (107); Figure 29 is the birds-eye view that supports little wheel assembly; Figure 30 is Figure 29 " H-H " cross-sectional view; Figure 31 supports the spherical axle of steamboat and the outside drawing of interior bar; Figure 32 is and connects the exploded view of the major part of lock (8).

The specific embodiment:

Preceding pipe is divided into upper front tube (12) and lower front tube (13), and preceding pipe box connects handle riser (15), and labour contractor's lock (7) is equipped with at the handle riser top, and the head of lock on comprising and rear end is locked; Connect preceding handle (14) to lock tube, a set bar groove (78) is positioned at the junction of upper front tube and last rail lock (6); Last rail lock lower end connects slide rail (5), the lower front tube that is being connected in the middle part of the slide rail, and the connection of slide rail lower end disconnects device pallet (4), disconnects device pallet lower end welding steamboat bar (50), is equipped with and supports steamboat (16); Disconnect device one end and slide rail (5) interlocks, the other end connects pipe (110) and chain stay (111) down; Sprocket wheel (90), overriding clutch (9), disconnector and crank (17) are equipped with in the chain stay front portion; There is and connects the bonnet lock hole (18) of lock (8) in the chain stay right side outside, and to arrive the distance of front wheel spindle identical with being installed in front fork (30) dead bolt left-external side and that connect lock (81) to the distance of hind axle for bonnet lock hole (18).

Said handlebar is divided into preceding handle (14) and middle handle (11), pins a lock button (20), preceding handle can about twitch, preceding handle will be fixed the scope of twitch two ends release button preceding, middle handle and preceding handle are connected, before being arranged in the rear.Be connected lock button (20) and compressing tablet (74); Compressing tablet is the degree of lip-rounding, and the barre outside, a lower end and a lock locking bolt (72) are connected before being enclosed within; Is the lock locking bolt downward cylindrical of hollow open; Be in the lock locking bolt in the locking bolt container of internal head cover (71) top middle portion, internal head cover, and is locked shell (55) to the labour contractor and is fixed on the handle riser top at handle riser (15) top through the screw thread spinning; In the cavity between an internal head cover (71) and lock locking bolt (72) spring (70) is housed, spring will be locking the keyhole (73) that locking bolt head into preceding handle (14) barre lower plane district during no external force.If press pressure handle lock button (20) downwards, can a lock locking bolt (72) be extruded locking bolt hole (73).Have two to the locking bolt hole, one is positioned in the middle of preceding handle (14) the barre below, and another is on right side, preceding handle (14) barre below, and during (14) barre right side keyhole, preceding handle (14) barre center just in time is in the left-right symmetric center of shopping cart before locking bolt inserts.

Pinch head lock handle (19), clamp (59) is pressed into lock chamber (77), shell fragment (75) is pressed into shell fragment groove (76); The pulling head is locked handle (19) downwards; Head lock locking bolt (79) is gone into a set bar groove (78) and can handlebar and vehicle body be connected, and handlebar can not freely be rotated, and promotes to be communicated with lock push rod (61) simultaneously; Be communicated with under lock push rod (61) free state and stretch into a set bar groove (78); The part dip plane that push rod (61) stretches into croze (78) is positioned at upside; Push rod (61) overcoat push rod spring (62); Push rod spring one end is fixed, and the other end is connected on the square column (63) of push rod, the square column other end locking bolt spring (64) that is being connected; Locking bolt spring (64) is enclosed within and is communicated with lock locking bolt (65) outside, and the other end is connected with connection lock locking bolt (65); After being communicated with lock push rod (61) head of a quilt lock locking bolt (79) promotion, stretching push rod spring (62), and compression locking bolt spring (64); The restoring force of locking bolt spring makes and is communicated with the dynamic regime that lock locking bolt (65) is in preparation entering connection locking bolt hole (66); Rail lock knob (60) in the rotation; Rail lock driving lever (68) turn certain angle in the drive, last rail lock driving lever (68) is stirred rail locking plug (58), makes the rail locking plug shift out rail locking bolt hole (56); At this moment hole, connection locking bolt hole (66) face of going up rail lock driving lever axial region (67) has just forwarded to over against the direction that is communicated with lock locking bolt (65); Get into keyhole (66) thereby be communicated with lock locking bolt (65), make rail locking plug (58) keep shifting out the state in rail locking bolt hole (56), thereby make the rail lock stay open state.

Said slide rail (5) is made up of two bend pipes, and two bend pipes middle part interconnects so that it is more firm, and is connected with lower front tube (13), and the slide rail two ends are locked and disconnected device pallet (4) with last rail respectively and are connected, and contact surface is axially vertical with slide rail.

The said device that disconnects is by pull bar (2), handle (1), and connection pipe (3), slide fastener (27), slide fastener seat (39), last rail lock locking bolt (26) is formed; Said pull bar is made up of pipe (23) and interior pipe (21) in the outer tube (25), and the outer tube inboard has " L " shape chute (29), middle pipe inboard that " L " shape chute (28) is arranged, and middle pipe outside tail end has slippery fellow (24), and interior pipe outside tail end has slippery fellow (22); Disconnect device and be connected on the slide rail (5) through slide fastener (27) cover, slide fastener positive one-tenth " C " shape and slide rail contact portion are circular arc, and the radius of arc is slightly larger than slide rail cross section radius of a circle; Side cross-section becomes " V " shape, and most advanced and sophisticated blunt circle contacts with slide rail; Last rail lock locking bolt (26) with the slide rail axially parallel is arranged on the face of slide fastener seat (39) and the axial quadrature of slide rail; Said handle is by contact (35), last back-up ring (36), and handle core (37), handle core spring (33), handle head (34), following back-up ring (32), handle case (31) disconnects lock snap close (38) and forms; Said connection pipe (3) neck connects interior pipe (21), pipe shaft catcher handle (1), and the pipe tail connects down pipe (110) and chain stay (111).Saidly disconnect that mounting or dismounting connect lock in the device pallet (4), disconnect lock dead bolt (41) and stretch out and disconnect device tray rack (42) upper surface, disconnecting in the lock body of lock dead bolt (41) lower end has spring (40).

The annular pawl base (91) of said overriding clutch (9) is connected in ratchet (92) inboard, and ratchet is connected with the sprocket wheel (90) that is socketed on axis (101) outside, and ratchet (95) is in the groove of pawl base (91); There is the limit of circular arc in the ratchet outside; The center of circle of circular arc is center of turn and this center of turn and pawl base groove inwall corner angle (97) coincidence, and interior wheel pushing hands (94) contacts with spring leaf (96) with ratchet (95), between interior wheel pushing hands and the recess sidewall space is arranged; The middle side part that the pushing hands of interior wheel contacts with ratchet; And interior wheel (93) corresponding positions is equipped with and carves groove (98), carves to be equipped with in the groove and carves post (100), carves the post outer end and is with spring (99); Carve the post bottom and stretch into axis (101), contact with disconnector axle core (102) tread of axis; Disconnector axle core stretches out the part of axis and is overlapping axis button (10), and middle shaft lock inwardly is housed, and tail end is the structure of similar button switch; In shaft lock dead bolt (103) be contained in the axis slit, can slip in seam, in the cavity below the middle shaft lock dead bolt spring (104) is housed, axis snap close (105) is in the inboard relevant position of central siphon (109).

Press the disconnector axle core (102) that axis button (10) and axis button be screwed in together and move inward, promote to carve post (100) and outwards move; Carve post and be inserted into the space of taking turns in the overriding clutch between pushing hands (94) and the annular pawl base (91); The pushing hands of interior wheel is drawn in pawl base (91) groove with ratchet (95), and the terminal button switch of disconnector axle core is fixed in the state that is pressed into disconnector axle core, then carves post (100) and remains on the position that is inserted into; Ratchet (95) then keeps not stretching out groove; Axis (101) will keep and ratchet (92) uncoupling, that is to say that the motion of wheel and the motion of stretcher are independent of each other.Simultaneously, middle shaft lock dead bolt (103) is moved into the annular region at axis snap close (105) place, and rotating crank (17) is to specific orientation, and middle shaft lock dead bolt (103) will slip into axis snap close (105), thereby crank (17) is fixing.Button switch is by disconnector axle core (102), axle core foxy (106), hypostyle column (107) and spring (108) formation;

Said overriding clutch (9) is noiseless overriding clutch, that is to say, when ratchet (92) rotating speed during greater than interior wheel (93) rotating speed; Ratchet (95) can not knock ratchet and send tap-tap; This is because ratchet rotating speed when faster, and ratchet is pressed into pawl base (91) groove, because the support of spring leaf (96) is fixed in the pawl base groove; Can not knock ratchet again, thereby not have tap-tap again.

Stir and connect lock-switch (80), and connect lock-switch and drive with its dead bolt that is connected (81) dead bolt is pulled out bonnet lock hole (18), simultaneously with spring (82) compression, the rear spring of loosing one's grip (82) retraction makes dead bolt (81) be returned to initial condition.

It is scalable by the length of the steamboat bar (50) of interior bar (52) and outer bar (51) formation to support steamboat (16). with foot-operated firmly steamboat button (88); The crooked hitching post (85) that drives of shell fragment (83) breaks away from croze (84); Unclamp after moving head up or down to; Shell fragment will be fastened post (85) again and taken back croze (84), thereby reach flexible purpose; Under the bicycle assembling of riding, the steamboat bar overhead still has a segment distance after moving to and growing most; Therefore should not hinder riding usually, thus can keep its elongation state at ordinary times always, only under special requirement; Perhaps, just the steamboat bar is shunk owing to cyclist's individual preference; Steamboat has spherical axle (89), and there is the protruded stigma (87) of stud bump the upper end, middle part, is stuck in the circular groove (86), steamboat can be rotated for axle by protruded stigma (87), thereby can change rotating direction in certain limit, and the low-angle that shopping cart is adapted in the stroke turns to; Protruded stigma shell fragment (53) two ends connect protruded stigma (87) and protruded stigma ball (54); Protruded stigma shell fragment (53) has elasticity; Protruded stigma ball (54) diameter is identical with protruded stigma (87) diameter of section; Be stuck in equally in the circular groove (86), can drive protruded stigma shell fragment (53) and swing, have the trend of stronger answer linear running after the return action of protruded stigma shell fragment (53) is turned steamboat; As want large radius turn, can make the steamboat built on stilts.

Bicycle is become the method and the principle of shopping cart: handlebar is just put; Head locking bolt (79) is drawn in croze (78), and then headstock can not rotate with respect to vehicle body again, promotes to be communicated with lock pushing hands (61) simultaneously; Make connection lock locking bolt (65) be in dynamic regime, like Figure 10 and shown in Figure 12; Press axis button (10), the rotation of crank (17) and the rotation of wheel are separated, and rotating crank fixes crank to specific orientation; Press and disconnect device contact (35); Pressing spring under the contact (33) also drives handle core (37) disconnecting lock dead bolt (41) release snap close (38), holds handle pipe (21) in the pull bar is pulled out middle pipe (23), and interior pipe foxy (22) slides along middle pipe chute (28); Slide into the flex point of " L " shape chute; Pipe is pulled out outer tube (25) with middle pipe in the drive, and middle pipe foxy (24) slides along outer tube chute (29), and the flex point that slides into " L " shape chute stops; Angle of each autorotation of front and back wheel this moment becomes in two parallel planes that are in the certain distance that staggers separately from being in same plane; To disconnect device along slide rail (5) and move the slide rail top to, disconnect the last rail locking bolt hole (56) that the anterior last rail lock locking bolt (26) of device inserts the slide rail upper end, be locked immediately; Simultaneously trailing wheel rolls forward up to front-wheel and become coaxial, front fork (30) left-external side and connect lock dead bolt (81) and get into the right lateral bonnet lock hole of chain stay (111) (18), thereby the coaxial state of locking front and back wheel; In the pipe rotation makes simultaneously pipe foxy (22) along in the curved short groove of pipe " L " shape chute (28) slide into end, pipe foxy (24) slided into end along the curved short groove of outer tube " L " shape chute (29) during the pipe rotation made in the drive, pull bar this moment (2) can't bounce back again; Pin a lock button (20), drive compressing tablet (74) to the lock button and will extrude keyhole (73) to lock locking bolt (72), but this moment the pull barre to the other end, release button (72), spring (70) retraction make locking bolt (72) get into the right-hand member keyhole and with compressing tablet and button jack-up.This moment, the position at barre center was in shopping cart two-wheel center of symmetry.The shopping cart distortion is accomplished.

Shopping cart is become the method and the principle of bicycle: pin the symmetric position that a lock button (20) pushes back preceding handle the bicycle pattern; Outward winding and go up rail lock-switch (60), last rail lock will temporarily remain "open" state, and will be shown in figure 13; Lift handlebar or side pressure handlebar, reserve the space that trailing wheel rolls backward, push and connect lock-switch (80) aside, hold and disconnect device handle (1) trailing wheel is rolled backward, disconnect device and slide into the bottom along slide rail (5); With the interior pipe (21) of pull bar (2), middle pipe (23) is pressed into outer tube (25), disconnects lock dead bolt (41) and springs into snap close (38); Push axis button (10), disconnector axle core (102) outwards ejects, and wraps in to carve outer spring (99) resilience of post (100), will carve post (100) and eject the position that is inserted into, the overriding clutch recovery function; Disconnector axle core (102) is taken middle shaft lock dead bolt (103) out of snap close (105) simultaneously, and crank (17) is replied and freely rotated; Upwards spur head lock locking bolt (79), headstock is replied and is freely rotated, and is communicated with simultaneously and locks push rod spring (62) retraction, will be communicated with lock locking bolt (65) and pull out keyhole (66), is returned to the state for preparing locking thereby go up the rail lock.

This bicycle is pacified front brake only, and front brake form and Regular Bicycle are as good as, and can be designed to the right-hand man and together control front brake, here front brake is omitted, and it is not drawn.

Owing to adopted noiseless overriding clutch, ride and can not send when promoting and knock the tap-tap that ratchet sends, so quiet more comfortable by ratchet.This distortion car distortion is convenient and strength-saving, good looking appearance; The shopping cart that distortion is accomplished, distance only about 20 centimetres between two outer margin of large wheel, or, can edge-only go up escalator less than 20 centimetres.Two bull wheels only with a steamboat that can act freely, have the wheelbarrow characteristic also together, and volume is little, turn flexibly, and the stair of can topping bar very easily can pass in and out the shop, various buildings such as apartment, thus can keep close body, be difficult for losing.Because can come in and go out the market, thus shopping bag can be reduced, the use of plastic bag, thereby environmental protection more, and laborsaving.

Claims

1. distortion bicycle, it is characterized in that: preceding pipe is divided into upper front tube (12) and lower front tube (13), and preceding pipe box connects handle riser (15), and labour contractor's lock (7) is equipped with at the handle riser top, comprises that a lock of upper end and the head of rear end lock; Connect handlebar to lock tube, a set bar groove (78) is positioned at the junction of upper front tube and last rail lock (6); Last rail lock lower end connects slide rail (5), the lower front tube that is being connected in the middle part of the slide rail, and the connection of slide rail lower end disconnects device pallet (4), disconnects device pallet lower end welding steamboat bar (50), is equipped with and supports steamboat (16); Disconnect device one end and slide rail (5) interlocks, the other end connects pipe (110) and chain stay (111) down; Sprocket wheel (90), overriding clutch (9), disconnector and crank (17) are equipped with in the chain stay front portion; There is and connects the bonnet lock hole (18) of lock (8) in the right outside of chain stay (111), and to arrive the distance of front wheel spindle identical with being installed in front fork (30) dead bolt left-external side and that connect lock (81) to the distance of hind axle for bonnet lock hole (18).

2. distortion bicycle according to claim 1; It is characterized in that: said handlebar is divided into preceding handle (14) and middle handle (11), pins a lock button (20), preceding handle (14) can about twitch; Twitch scope two ends release button at preceding; Preceding being fixed, middle handle (11) and preceding handle (14) are connected, and are arranged in preceding handle (14) rear.

3. distortion bicycle according to claim 1; It is characterized in that: be communicated with under lock push rod (61) free state and stretch into a set bar groove (78); The part dip plane that push rod (61) stretches into croze (78) is positioned at upside, and push rod (61) overcoat push rod spring (62), and push rod spring one end is fixed; The other end is connected on the square column (63) of push rod, the square column other end locking bolt spring (64) that is being connected; Locking bolt spring (64) is enclosed within and is communicated with lock locking bolt (65) outside, and the other end is connected with connection lock locking bolt (65); When hole, connection locking bolt hole (66) face of last rail lock driving lever axial region (67) forwarded to just over against connection lock locking bolt (65), last rail locking plug (58) just shifted out rail locking bolt hole (56) through the gearing of last rail lock driving lever (68).

4. distortion bicycle according to claim 1 is characterized in that: the said device that disconnects is by pull bar (2), handle (1), and connection pipe (3), slide fastener (27), slide fastener seat (39), last rail lock locking bolt (26) is formed; Said pull bar is made up of pipe (23) and interior pipe (21) in the outer tube (25), and the outer tube inboard has " L " shape chute (29), middle pipe inboard that " L " shape chute (28) is arranged, and middle pipe outside tail end has slippery fellow (24), and interior pipe outside tail end has slippery fellow (22); Disconnect device and be connected on the slide rail (5) through slide fastener (27) cover, slide fastener positive one-tenth " C " shape and slide rail contact portion are circular arc, and the radius of arc is slightly larger than slide rail cross section radius of a circle; Side cross-section becomes " V " shape, and most advanced and sophisticated blunt circle contacts with slide rail; Last rail lock locking bolt (26) with the slide rail axially parallel is arranged on the face of slide fastener seat (39) and the axial quadrature of slide rail; Said handle is by contact (35), last back-up ring (36), and handle core (37), handle core spring (33), handle head (34), following back-up ring (32), handle case (31) disconnects lock snap close (38) and forms; Said connection pipe (3) neck connects interior pipe (21), pipe shaft catcher handle (1), and the pipe tail connects down pipe (110) and chain stay (111).

5. distortion bicycle according to claim 1 is characterized in that: saidly disconnect that mounting or dismounting connect lock in the device pallet (4), disconnect lock dead bolt (41) and stretch out and disconnect device tray rack (42) upper surface, disconnecting in the lock body of lock dead bolt (41) lower end has spring (40)

6. distortion bicycle according to claim 1 is characterized in that: the annular pawl base (91) of said overriding clutch (9) is connected in ratchet (92) inboard, and ratchet is connected with the sprocket wheel (90) that is socketed on axis (101) outside; Ratchet (95) is in the groove of pawl base (91), and there is the limit of circular arc in the ratchet outside, and the center of circle of circular arc is center of turn and this center of turn and pawl base groove inwall corner angle (97) coincidence; Interior wheel pushing hands (94) contacts with spring leaf (96) with ratchet (95); In the space is arranged between wheel pushing hands and the recess sidewall, the middle side part that interior wheel pushing hands contacts with ratchet, and interior wheel (93) corresponding positions is equipped with and carves groove (98); Carve to be equipped with in the groove and carve post (100); Carve the post outer end and be with spring (99), carve the post bottom and stretch into axis (101), contact with disconnector axle core (102) tread of axis; Disconnector axle core stretches out the part of axis and is overlapping axis button (10), and middle shaft lock inwardly is housed, and tail end is the structure of similar button switch; In shaft lock dead bolt (103) be contained in the axis slit, can slip in seam, in the cavity below the middle shaft lock dead bolt spring (104) is housed, axis snap close (105) is in the inboard relevant position of central siphon (109).

7. distortion bicycle according to claim 1 is characterized in that: the strut bar (50) of said support steamboat (16) is telescopic structure; There is the protruded stigma (87) of stud bump at spherical axle (89) middle part of steamboat, is stuck in the circular groove (86), steamboat can be rotated for axle by protruded stigma (87), thereby can change rotating direction in certain limit, and the low-angle that shopping cart is adapted in the stroke turns to; Protruded stigma shell fragment (53) two ends connect protruded stigma (87) and protruded stigma ball (54); Protruded stigma shell fragment (53) has elasticity; Protruded stigma ball (54) diameter is identical with protruded stigma (87) diameter of section; Be stuck in equally in the circular groove (86), can drive protruded stigma shell fragment (53) and swing, have the trend of stronger answer linear running after the return action of protruded stigma shell fragment (53) is turned steamboat; As want large radius turn, can make the steamboat built on stilts.

8. distortion bicycle according to claim 1 is characterized in that: when the bicycle pattern of riding becomes the shopping cart pattern, a pulling head lock handle (19) is connected handle and vehicle body earlier; Press axis button (10), the rotation of crank (17) and the rotation of wheel are separated, and forward crank (17) to special angle, thereby crank is fixed; Hold again and disconnect device handle (1) and press contact (35) pull bar (2) is stretched, the plane that front-wheel and trailing wheel are belonged to certain distance that staggers; The said device that disconnects is slided into the top and by the locking of last rail lock along slide rail (5), and trailing wheel is rolled to and front-wheel coaxial position side by side then, and by and connect lock (8) and lock; Pin at last and unclamp a lock button (20) to (14) to midway location before lock button (20) pull handle is fixed.

9. distortion bicycle according to claim 1 is characterized in that: becoming from the shopping cart pattern when riding the bicycle pattern, pin the symmetric position that a lock button (20) pushes back preceding handle (14) the bicycle pattern; Outward winding and go up rail lock-switch (60), last rail lock will temporarily remain "open" state; Lock-switch (80) is pushed and is connect in the orientation that makes handle riser (15) be in vertically or lean forward aside, holds to disconnect device handle (1) trailing wheel is rolled backward; Disconnect device and slide into the bottom along slide rail (5); With the interior pipe (21) of pull bar (2), middle pipe (23) is pressed into outer tube (25), disconnects lock dead bolt (41) and springs into snap close (38); Push axis button (10), disconnector axle core (102) outwards ejects, and wraps in to carve outer spring (99) resilience of post (100), will carve post (100) and eject the position that is inserted into, the overriding clutch recovery function; Disconnector axle core (102) is taken middle shaft lock dead bolt (103) out of snap close (105) simultaneously, and crank (17) is replied and freely rotated; Upwards spur head lock locking bolt (79), headstock is replied and is freely rotated, and is communicated with simultaneously and locks push rod spring (62) retraction, will be communicated with lock locking bolt (65) and pull out keyhole (66), is returned to the state for preparing locking thereby go up the rail lock.

10. distortion bicycle according to claim 1 is characterized in that: the shopping cart two-wheeled outer rim spacing that said distortion shopping bicycle becomes can have the wheelbarrow characteristic that has the supplemental support wheel less than 20 centimetres.