CN105015667A - X-shaped-folding tricycle capable of being turned by swinging handlebar - Google Patents

Abstract

An X-shaped folding swing-handle turning tricycle, including a frame I, a frame II, a folder, a steering shaft, a seat, a positioning card, a front wheel, two rear wheels and a driving mechanism, and the folder includes a lower leaf and an upper leaf , lock hook, lock hook spring and positioning bolts, the frame I is welded by the diagonal bracing tube, connecting tube, seat tube, bottom bracket tube and front fork, the lower leaf is also welded on the frame I, and the front fork is installed with the front wheel , the seat is installed in the seat tube, the frame II is welded by a U-shaped bend, a rotating drum, a horizontal tube, an upper connecting piece, a left ear piece and a right ear piece, and an upper leaf is also welded on the frame II, Two bearings are inlaid in the drum, the upper piece is connected to the positioning card, the lower leaf is connected to the upper leaf and the lock hook in rotation, the steering shaft is welded by the rear wheel shaft and the steering seat, and the left tension spring and the right tension spring are connected to the two sides of the steering seat and the steering seat respectively. Left lug and right lug, respectively install a rear wheel at the two ends of rear axle, drive mechanism is made of axis, crank, crankshaft, pedal, flywheel and chain.

Description

X-shaped folding swing handle turning tricycle

Technical field:

The invention relates to an entertainment tricycle, in particular to an X-shaped folding swing handle turning tricycle that can be quickly folded, and the folded vehicle body is small and can be towed.

technical background:

Recreational tricycles are not uncommon in the market at present, but it is difficult to find recreational tricycles capable of X-shaped folding, which is a motive of the present invention.

Invention content:

The object of the present invention is to provide an X-shaped folding swing handle turning tricycle with ingenious and simple structure, unique folding and turning methods, and easy towing after folding. The object of the present invention is achieved like this: the X-shaped folding pendulum turning type tricycle includes vehicle frame I, vehicle frame II, folder, steering shaft, vehicle seat, positioning card, front wheel, two rear wheels and drive mechanism, and The characteristics are: the frame I includes a brace tube, a connecting tube, a seat tube, a bottom bracket tube and a front fork. The seat tube is welded, the top of the diagonal support tube is welded to the lower leaf of the folder. The folder includes the lower leaf, the upper leaf, the lock hook, the lock hook spring and the positioning bolt. The lower leaf is stamped by a metal sheet. The left and right sides of the lower leaf Fold upward, and the upward fold of the lower leaf forms a figure-eight shape with a small front and a large rear. The front and rear ends on both sides of the lower leaf each have a mutual transverse perforation. , and cooperate with the installation of lock hook springs and positioning bolts, the bottom end of the diagonal bracing tube is welded to the bottom bracket tube, the bottom bracket tube is welded to the front fork, the lower end of the front fork is installed with the front wheel, and the seat is installed in the seat tube; the frame II includes U U-shaped elbow, drum, handle bar, upper connecting piece, left ear piece and right ear piece, the U-shaped elbow is made of a U-shaped bend in the middle of a round pipe, and the U-shaped bend of the U-shaped elbow is pressed Flat to form an Ω-shaped mouth, the two front ends of the U-shaped elbow are bent upwards in a circular arc shape, the drum is welded in the Ω-shaped mouth of the U-shaped elbow, and the drum welded in the Ω-shaped mouth of the U-shaped elbow is in the shape of the ground Tilt up and down and forward, weld the horizontal tube to the upper top of the two arc-shaped bends of the U-shaped elbow, weld the upper connecting pieces to the two inner sides of the upper part of the U-shaped elbow, and weld the left and right ear pieces to the U-shaped elbow. Below the two sides of the rear part of the elbow, the two inner sides of the middle part of the U-shaped elbow are welded with upper leaves. Perforation, the horizontal counter-perforation of the upper leaf is rotationally connected with the transverse counter-perforation of the rear end of the lower leaf through locking bolts, a bearing is inlaid at the upper and lower ends of the drum, and the upper connecting piece is connected with the positioning card, the C-shaped bayonet of the positioning card and the seat tube Correspondingly; the steering shaft includes the rear wheel shaft, the steering seat, the left extension spring and the right extension spring. The right extension spring, the left extension spring and the right extension spring are respectively connected to the left lug and the right lug, and a rear wheel is respectively installed at the left and right ends of the rear axle; the driving mechanism includes a central axis, a crank, a tooth plate, a pedal, a flywheel and a chain , the center shaft is installed in the bottom bracket through the center shaft fittings, the two cranks are connected to both ends of the center shaft, the chainring is fixedly connected to the right crank, the two pedals are screwed to the outer ends of the two cranks, and the flywheel is installed on the front wheel On the right, the chain wraps around the crankset and cassette.

The beneficial effects of the present invention are: the present invention has ingenious structure, fast and convenient folding, and is convenient to tow after folding; the front wheel is used as the driving wheel, and the steering shaft is arranged at the rear end, which makes the structure simpler and easier to fold, and the front wheel after folding The crankshaft and chainring are located in the U-shaped bend of the frame II to make the folding more effective; as the steering shaft and the drum that is tilted up and down with the ground rotate, when the cross tube is tilted to the left, the joint The vehicle frame II and the vehicle frame I tilt to the left, which can produce the oblique direction in which the left end of the steering shaft is forward and the right end is backward, and the present invention turns to the left; Tilting to the right can produce the oblique direction in which the right end of the steering shaft is forward and the left end is backward. The present invention turns to the right, forming a swing handle turning manner; making the present invention more entertaining and changing the traditional turning manner.

Description of drawings:

Fig. 1 is structure and appearance schematic diagram of the present invention;

Fig. 2 is a structural diagram of the vehicle frame I connecting the lower leaf of the present invention;

Fig. 3 is a structural diagram of the vehicle frame II connecting the upper leaf and the positioning card of the present invention;

Fig. 4 is a structural diagram of the steering shaft of the present invention;

Fig. 5 is a schematic diagram of right swing and right turn of the present invention;

Fig. 6 is a schematic diagram of left swing and left turn of the present invention;

Fig. 7 is a folding effect diagram of the present invention;

In the figure: 1——Frame I, 2——Frame II, 3—Folder, 4—Steering shaft, 5—Seat, 6—Positioning card, 7—Front wheel, 8— Rear wheel, 9—drive mechanism; wherein frame Ⅰ1 also includes: 11—diagonal bracing tube, 12—connecting tube, 13—seat tube, 14—bottom bracket tube, 15—front fork; Ⅱ2 also includes: 21—U-shaped elbow, 22—rotary drum, 23—handle the horizontal pipe, 24—upper connecting piece, 25—left ear piece, 26—right ear piece; folder 3 also Including: 31—lower leaf, 32—upper leaf; Steering shaft 4 also includes: 41—rear axle, 42—steering seat.

Detailed ways:

According to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the described X-shaped folding pendulum turning tricycle includes vehicle frame I1, vehicle frame II2, folder 3, steering shaft 4, vehicle seat 5, positioning card 6, Front wheel 7, rear wheel 8 and driving mechanism 9;

The vehicle frame I includes a brace tube 11, a connecting tube 12, a seat tube 13, a bottom bracket tube 14 and a front fork 15. The brace tube 11 is a metal round tube with an arc at the bottom end. There is a threaded hole on the front side of the upper part of the diagonal brace 11, and the arc at the bottom of the diagonal brace 11 corresponds to the bottom bracket 14, and the bottom of the diagonal brace 11 is connected to the bottom bracket of the bottom bracket. 14 welding, the top of the diagonal brace 11 is welded to the lower leaf 31 of the folder 3, the rear side of the top of the diagonal brace 11 is welded to the connecting pipe 12, and the connecting pipe 12 is made of rectangular metal The pipe is cut into oblique parallelograms, and the upper and lower sides of the front and rear ends of the connecting pipe 12 are respectively provided with circular arc openings, and the circular arc openings on the upper and lower sides of the front end of the connecting pipe 12 are aligned with the circular meridian of the diagonally braced pipe 11. Corresponding to and welded with the rear side of the upper end of the diagonal support tube 11, the arc openings on the upper and lower sides of the rear end of the connecting tube 12 correspond to the circular meridian of the seat tube 13 and are connected to the lower end of the seat tube 13. The front side is welded, the top of the seat tube 13 is equipped with a saddle tube clamp, the seat 4 is installed in the seat tube 13, and the front fork 15 is welded below the bottom bracket tube 14. Described front fork 15 comprises left fork sheet and right fork sheet, and left fork sheet is by the sheet metal of strip, punches the punching piece that top end has arc opening, the bottom end has U-shaped notch, and the arc opening of left fork sheet Welded with the bottom of the left head of the five-way pipe 14, the right fork is made of a strip-shaped metal sheet, which is stamped into a punching piece with an arc opening at the top, a U-shaped notch at the bottom, and two right-angle bends in the middle. , the arc opening of the right fork is welded to the bottom of the right end of the bottom bracket 14, and the left and right brackets after welding with the bottom bracket 14 form a rear view with the bottom bracket 14 Said shape, the U-shaped notch of left fork piece and right fork piece is installed described front-wheel 7, and described front-wheel 7 is 8 inch wheels.

The vehicle frame II 2 includes a U-shaped elbow 21, a rotating drum 22, a handle bar 23, an upper connecting piece 24, a left lug 25 and a right lug 26, and the U-shaped elbow 21 is made of a round The middle of the tube is bent in a U shape, and the U-shaped bend of the U-shaped bend 21 is flattened to form an Ω-shaped mouth. The tube 21 bends upwards and has horizontal circular arc openings on the left and right sides of the two top ends. The left and right horizontal arc openings on the two top ends of the U-shaped elbow pipe 21 correspond to the diameter of the handlebar tube 23. The tube 23 is pressed by a round tube into a wavy bend with a downward convex middle. The horizontal tube 23 is welded to the left and right horizontal arcs at the two top ends of the U-shaped elbow 21, and the rotary cylinder 22 is welded to the U-shaped elbow. In the Ω-shaped mouth of the U-shaped elbow, the rotating cylinder 22 is welded to the described rotating cylinder 22 in the Ω-shaped mouth of the U-shaped elbow 21 by means of steps for placing bearings at the upper and lower ends of a pipe. The upper and lower ends of the drum 22 are each inlaid with a bearing, and the upper connecting piece 24 is punched by a flat metal sheet so that the left and right sides are bent downward into a ︹ shape. , the middle part of the upper connecting piece 24 has a connection hole, the upper connecting piece 24 is welded on the two inner sides of the upper part of the U-shaped elbow 21, the left ear piece 25 and the right ear piece 25 are A metal sheet with a hole, the left ear piece 24 and the right ear piece 25 are welded under the two sides of the rear part of the U-shaped elbow 21, and the two inner sides of the middle part of the U-shaped elbow 21 are welded. The upper leaf 31 of the folder 2, the connecting hole of the upper connecting piece 24 is screwed to the screwing hole of the positioning card 6 through bolts, and the positioning card 6 has a C-shaped bayonet on the upper part and a top with a The plastic part of the screwed hole, the C-shaped bayonet of the positioning card 6 is corresponding to the seat tube 13, and the C-shaped bayonet of the positioning card 6 is engaged with the folded seat tube 13 of the car .

The folder 3 includes a lower leaf 31, an upper leaf 32, a lock hook, a lock hook spring and a positioning bolt. The lower leaf 31 is stamped from a metal sheet. The left and right sides of the lower leaf 31 Folding upwards, the upward folding of the lower leaf 31 forms a figure-eight shape with a small front and a large rear. The front and rear ends on both sides of the lower leaf 31 each have a mutual transverse pair of perforations. The locking bolt is connected with the lock hook by rotation, and the left and right sides of a metal sheet are folded downwards to form a groove shape for the upper leaf 32, and there are a pair of mutual transverse perforations on both sides of the rear end of the upper leaf 31. , the inner side of the groove type of the upper leaf 32 corresponds to the width of the lateral outer diameter of the rear end of the lower leaf 31, and the transverse perforation holes of the upper leaf 32 are transversely connected with the rear end of the lower leaf 31 through locking bolts. For the perforated connection, the lock hook is a part with a hook shape at the upper end, a ring shape at the middle, and a handle at the bottom. The threaded hole on the front side of the upper part of the pipe 11 corresponds, and the ring shape of the lock hook is rotatably connected with the transverse counter-perforation hole at the front end of the lower leaf 31 through the lock bolt, and the lock hook spring is placed in front of the upper part of the diagonally braced pipe 11. Between the threaded hole on the side and the long hole of the lock hook, use a positioning bolt to penetrate into the long hole of the lock hook and the spring, and then screw it into the threaded hole on the front side of the upper part of the diagonal support pipe 11, The locking hook can hook the front edge of the upper leaf 32 .

The steering shaft 4 includes a rear axle 41, a steering seat 42, a left extension spring and a right extension spring. The rear axle 41 is formed by welding a bolt at both ends of a circular tube. The rear axle 41 Welding the steering seat 42 in the middle, the steering seat 42 is bent by a T-shaped metal sheet into a slot-shaped part with an opening facing forward, and the left and right sides of the bottom surface of the steering seat 42 protrude outwards, There is an opening on the two sides of the left and right protruding outwards of the steering seat 42. There is a mutual pair of perforations in the middle part of the upper bottom surface of the steering seat 42 and the middle part of the lower bottom surface. The rear side of the steering seat 42 has a perforation. The groove bottom of steering seat 42 grooves is inlaid with a plastic sheet, and the rear side of the plastic sheet inlaid in the bottom of said steering seat 42 grooves has a protruding head, and the plastic sheet at the bottom of said steering seat 42 grooves passes through a protruding head on the plastic sheet. , connected with the perforation on the rear side of the steering seat 42, the mutual opposite perforations on the upper bottom surface and the lower bottom surface of the steering seat 42 are connected with the inner holes of the two bearings in the rotating drum 22 through locking bolts, the steering The openings on the left and right sides of the bottom surface of the seat 42 are respectively connected to the left extension spring and the right extension spring, and the left extension spring and the right extension spring are connected to the left ear piece 25 and the right extension spring respectively. The right lug 25 described above, the two rear wheels 8 are respectively sleeved on the two ends of the rear wheel shaft 41, and then screwed on the two ends of the rear wheel shaft 41 with two anti-skid nuts for positioning. The rear wheel 8 is a 6-inch wheel that is respectively connected to a bearing on both sides of the wheel center. When the present invention turns, the plastic sheet at the bottom of the 42 grooves of the steering seat and the U-shaped bend on the left and right sides of the U-shaped elbow 21Ω type mouth The outer side is used as a limit, and the steering shaft 4 can be limited to the left or right within the range of 35°.

The drive mechanism 9 includes a central axis, a crank, a crankshaft, a pedal, a flywheel and a chain. The central axis is installed in the bottom bracket 14 through a central axis fitting, and the two cranks are connected to the The two ends of the central axis, the crankshaft is fixedly connected to the right crank of the crank, the two pedals are screwed to the two cranks, and the flywheel is mounted on the front wheel 7 On the right side, the chain is wound with the crankset and the flywheel.

Claims (10)

1. An X-shaped folding pendulum turning type tricycle, comprising vehicle frame I, vehicle frame II, folder, steering shaft, vehicle seat, positioning card, front wheel, two rear wheels and drive mechanism, is characterized in that: vehicle frame ⅠIncluding the diagonal brace tube, connecting tube, seat tube, bottom bracket tube and front fork, the upper part of the diagonal brace tube is welded to the connecting tube, the connecting tube is cut into a diagonal parallelogram shape from a rectangular tube, the connecting tube is welded to the seat tube, and the oblique The top of the support tube is welded to the lower leaf of the folder. The folder includes the lower leaf, the upper leaf, the lock hook, the lock hook spring and the positioning bolt. The lower leaf is stamped by a metal sheet. The upper edge of the leaf is folded into a figure-eight shape with a small front and a large rear. The front and rear ends on both sides of the lower leaf each have a mutual transverse perforation. Hook springs and positioning bolts, the bottom end of the diagonal bracing tube is welded to the bottom bracket tube, the bottom bracket tube is welded to the front fork, the lower end of the front fork is installed with the front wheel, and the seat is installed in the seat tube; Barrel, horizontal tube, upper connecting piece, left ear piece and right ear piece, the U-shaped bend pipe is made of a U-shaped bend in the middle of a round pipe, and the U-shaped bend of the U-shaped bend pipe is flattened to form an Ω-shaped mouth , the two fronts of the U-shaped elbow are bent upwards in a circular arc shape, and the drum is welded in the Ω-shaped mouth of the U-shaped elbow, and the drum welded in the Ω-shaped mouth of the U-shaped elbow is up and down with the ground. Inclined, the horizontal tube is welded to the upper top of the two arc-shaped bends of the U-shaped elbow, the upper connecting piece is welded to the two inner sides of the upper part of the U-shaped elbow, and the left and right ear pieces are welded to the two rear parts of the U-shaped elbow. Below the side, the two inner sides of the middle part of the U-shaped elbow are welded to the upper leaf. The upper leaf is folded down into a groove shape by the left and right sides of a metal sheet. There are a pair of mutual transverse perforations on both sides of the rear end of the upper leaf. The horizontal counter-perforation is rotationally connected with the transverse counter-perforation at the rear end of the lower leaf through the counter-locking bolts. The upper and lower ends of the drum are inlaid with a bearing, and the upper piece is connected to the positioning card. The C-shaped bayonet of the positioning card corresponds to the seat tube; the steering shaft Including the rear axle, steering seat, left extension spring and right extension spring, the steering seat is welded in the middle of the rear axle, the steering seat is connected with the drum in rotation, the left and right extension springs are respectively connected to the left and right extension springs on the bottom side of the steering seat, the left The extension spring and the right extension spring are respectively connected to the left lug and the right lug, and a rear wheel is respectively installed at the left and right ends of the rear wheel shaft; the driving mechanism includes a central shaft, a crank, a tooth plate, a pedal, a flywheel and a chain, and the central shaft passes through the central shaft. The shaft accessories are installed in the bottom bracket tube, the two cranks are connected to the two ends of the center shaft, the chainring is fixedly connected to the right crank, the two pedals are screwed to the outer ends of the two cranks, the flywheel is installed on the right side of the front wheel, and the chain is wound around Connect to the crankset and flywheel. 2. The X-shaped foldable pendulum turning tricycle according to claim 1, characterized in that: said slanting tube is a metal round tube with an arc opening at the bottom, and the front side of the upper part of said slanting tube is opened There is a threaded hole, the arc opening at the bottom end of the diagonal bracing pipe corresponds to the five-way pipe, the upper and lower sides of the front and rear ends of the connecting pipe are respectively provided with arc openings, and the arc openings on the upper and lower sides of the front end of the connecting pipe The opening corresponds to the circular meridian of the slanting tube and is welded to the rear side of the upper end of the slanting tube, and the arc openings on the upper and lower sides of the rear end of the connecting tube correspond to the circular meridian of the seat tube, and Welded with the front side of the lower end of the seat tube, the top of the seat tube is equipped with a saddle tube clamp. 3. The X-shaped folding swing handle turning tricycle according to claim 1, characterized in that: the front fork includes a left fork and a right fork, and the left fork is a strip-shaped metal sheet stamped into the top A punching piece with an arc opening and a U-shaped notch at the bottom. The arc opening of the left fork is welded to the bottom of the left head of the bottom bracket. There is a U-shaped notch at the arc opening, the bottom end, and two punching pieces bent at right angles in the middle. The arc opening of the right fork is welded to the bottom of the right head of the five-way pipe, and welded to the bottom of the five-way pipe after welding. Left fork sheet and right fork sheet, form the back-sighted Nai shape with described five-way pipe. 4. The X-shaped folding pendulum turning tricycle according to claim 1, characterized in that: said U-shaped elbow bends upwards and has horizontal arc openings on the left and right sides of the two top ends, and said U-shaped elbow has two The left and right horizontal arc openings at the top correspond to the pipe diameters of the handlebar tubes, and the left and right horizontal arc openings at the two top ends of the U-shaped elbow are welded to the handlebar tubes. 5. The X-shaped folding pendulum turning tricycle according to claim 1 is characterized in that: the rotating drum is a step for placing bearings at the upper and lower ends of a tube, and the upper connecting piece is It is punched from a flat metal sheet so that the left and right sides are bent downward into a ︹ shape. There is a connecting hole in the middle of the upper connecting piece, and the left ear and the right ear are metal sheets with holes. , the connecting hole of the upper connecting piece is screwed to the screwing hole of the positioning card through a bolt. 6. The X-shaped foldable swing handle turning tricycle according to claim 1, characterized in that: the positioning card is a plastic part with a C-shaped bayonet on the upper part and a screw hole on the top, and the positioning card The C-shaped bayonet of the car is engaged with the seat tube after the car is folded. 7. The X-shaped folding pendulum turning tricycle according to claim 1, characterized in that: the inner side of the upper leaf groove corresponds to the width of the lateral outer diameter of the rear end of the lower leaf, and the lock The hook is a part with a hook-shaped upper end, a ring-shaped middle part, and a handle at the lower part. There is a long hole on the handle of the lock hook, and the long hole of the lock hook corresponds to the threaded hole on the front side of the upper part of the diagonal support pipe. , the ring shape of the lock hook is rotationally connected with the transverse counter-piercing hole at the front end of the lower leaf through the lock bolt, and the lock hook spring is placed in the threaded hole on the front side of the upper part of the diagonal support tube and the long hole of the lock hook Between them, use a positioning bolt to penetrate into the long hole of the lock hook and the spring, and then screw it into the threaded hole on the front side of the upper part of the diagonal support tube. The lock hook can hook the front of the upper leaf edge. 8. The X-shaped folding pendulum turning tricycle according to claim 1 is characterized in that: the rear wheel shaft is formed by welding a bolt at both ends of a circular tube, and the middle of the rear wheel shaft is welded The steering seat, the steering seat is bent from a T-shaped metal sheet into a groove-shaped part with an opening facing forward, the left and right sides of the bottom surface of the steering seat protrude outwards, and the left and right sides of the steering seat There is an opening on each of the protruding two sides, the middle part of the upper bottom surface of the steering seat and the middle part of the lower bottom surface have a mutual pair of perforations, the rear side of the steering seat has a perforation, and the groove bottom of the steering seat is inlaid with a Plastic sheet, the rear side of the plastic sheet embedded in the bottom of the steering seat groove has a protruding head, the plastic sheet at the bottom of the steering seat groove is connected with the perforation on the rear side of the steering seat through a protruding head on the plastic sheet The opposite perforations between the upper bottom surface and the lower bottom surface of the steering seat are connected to the inner holes of the two bearings in the drum through the locking bolts, and the openings on the left and right sides of the lower bottom surface of the steering seat are respectively connected to the left tension springs. And said right extension spring. 9. The X-shaped folding pendulum turning tricycle according to claim 1, characterized in that: the two rear wheels are respectively sleeved on the two ends of the rear wheel shaft, and then screwed to the two ends of the rear wheel shaft with two anti-skid nuts respectively. Locate on both ends of the rear axle described above. 10. The X-shaped folding pendulum turning tricycle according to claim 8 is characterized in that: when turning in the present invention, the plastic sheet at the bottom of the steering seat groove and the left and right sides of the Ω-shaped mouth of the U-shaped elbow The outer side of the U-shaped bend is used as a limiter, which can limit the steering shaft to the left or right within a range of 35°.