WO2008119250A1

WO2008119250A1 - Portable electric walking assistance device

Info

Publication number: WO2008119250A1
Application number: PCT/CN2008/000609
Authority: WO
Inventors: Lungchin Lin
Original assignee: Lungchin Lin
Priority date: 2007-04-03
Filing date: 2008-03-27
Publication date: 2008-10-09
Also published as: CN101058329A

Abstract

A portable electric walking assistance device is composed of a frame (3), a driving mechanism, a steering mechanism, a braking mechanism and a power source. A steering wheel (5) is provided on the front end of the frame (3), which is hinged to the lower end of a head pipe (9). A handle (10) is provided on the upper end of the head pipe (9). A driving wheel (1) is provided on the rear end of the frame (3), which is driven by a motor. An accumulator (18) is provided on the upper surface of the frame. A pair of footrests (4) is connected to both sides of the frame. An assistant wheel (2) is provided below the footrest. The footrest (4) and the head pipe (9) are foldable.

Description

Portable electric scooter

Technical field

The invention relates to a pedal type walking tool, mainly to a portable electric walking machine. Background technique

There are many types of electric scooters (vehicles) known, and the basic structure includes a frame and front and rear wheels, which are complicated and simple, but all have different problems. Patent No. ZL03249791. 1 discloses a structure of a "micro-electric scooter", which includes mounting a lift base, a battery, a rear wheel set bracket and a front steering gear on the frame, and mounting on the rear wheel set bracket. DC motor, there are four rear shock absorber springs on the rear wheel set bracket, a faucet lift adjuster and a cantilever type shock absorber front fork are mounted on the front steering gear, and a front cantilever torsion spring is mounted on the cantilever type shock absorber front fork, The shock absorption is adjustable in four gear positions. Summary of the invention

The object of the present invention is to provide a portable electric walking machine, which adopts a structure with a lightweight body, a rear wheel drive, a front wheel guide, and an auxiliary wheel on both sides, and has the characteristics of being foldable and convenient to carry, and the present invention is better solved. There are deficiencies in electric scooters (cars).

The technical solution of the present invention is: the walking machine comprises a frame, a traveling mechanism, a steering mechanism, a brake mechanism and a power source, wherein a front end of the frame is provided with a steering wheel, and the steering wheel is connected to a lower end of the hinged vertical shaft, the steering The upper end of the vertical shaft is provided with a handlebar, and a walking wheel is arranged at the rear end of the frame, the traveling wheel is driven by a motor, a battery is arranged on the upper part of the frame, and a foot pedal is respectively connected on both sides of the frame, An auxiliary wheel is provided below the foot pedal.

The technical solution also includes:

The frame is a rectangular parallelepiped, the front end of which is provided with a front wheel fork hole, a fork shaft of the front wheel fork is arranged in the hole, a steering wheel is mounted on the front wheel fork, and a fork wheel is arranged between the fork shaft and the front wheel fork hole a bearing, the fork shaft is fixed in the front wheel fork hole by a nut;

1

Confirmation A rear fork is arranged at the rear end of the rack, and a driving wheel is fixed therein; and a lifting lug connecting the foot pedal is arranged on both sides of the rack. The steering vertical shaft comprises an outer cylinder and a telescopic rod, wherein the outer cylinder is provided with a locking member for locking the telescopic rod, and the lower end of the outer cylinder is connected with the steering knuckle through the pin shaft, and the chuck under the knuckle is engaged In the fork shaft, a telescopic bayonet is further arranged on the steering knuckle, and the telescopic pin can be inserted into the positioning hole at the lower end of the outer cylinder; the top end of the telescopic rod is connected with a handle sleeve, and the handle sleeve is hinged to the handlebar through the pinion together.

The side of the foot pedal is provided with a hanging piece, and the hanging piece is hinged with the lifting ear on both sides of the frame through a pin shaft, and one end of the hanging piece can be in contact with the inner wall of the frame, and a control lever is further arranged on the bottom surface of the foot pedal. The middle of the control lever is provided with a fulcrum, one end of which is a force-applying plate, and the other end has a positioning rod, and the positioning rod is respectively matched with a positioning hole and a positioning block on the positioning plate, and one side of the positioning plate is provided with a positioning shaft, and the other side An auxiliary axle is arranged, wherein an auxiliary wheel is mounted on the auxiliary axle, the positioning shaft is fixed on the bottom surface of the pedal, and a tension spring is arranged on the control lever between the fulcrum and the positioning rod.

A brake lever is disposed under the handlebar, and the brake lever is connected to a brake pad via a brake line, and the shutter can contact the walking wheel.

The handle is provided with a power switch.

The frame is provided with a frame cover, the frame cover has a battery, and a locking sleeve is arranged at a rear end of the frame cover, the locking sleeve comprises a bracket and a split ring of two semi-circular pipes butt jointed together Wherein a clamping strut is provided at the open loop.

The side of the frame is provided with a magnetic block that sucks the foot pedal.

A seat is provided on the frame.

The end of the handle sleeve is provided with a boss, and the boss is provided with a slot, wherein a slot is provided in the hole of the boss, and a protrusion corresponding to the boss of the handle is provided at the end of the handle a slot is also provided in the hole of the boss, and a pinion is mounted in the hole of the boss, the tooth shaft has a convex tooth, the convex tooth is an empty groove, and the lower end of the pin shaft is provided with an end cover. Inside the end cap is a spring that is supported at one end on the end face of the boss.

The telescopic bayonet is disposed in the sleeve of the steering knuckle, wherein a spring is disposed on the telescopic bayonet in the sleeve. The locking member is a mouthpiece sleeve, wherein an eccentric press is provided at the opening.

A handle is arranged on the outer cylinder.

The positioning hole and the positioning block on the positioning plate are respectively disposed on two sides of the disk; the positioning axis on the positioning plate and the auxiliary axle are not On one axis.

The invention has the beneficial effects: compact and reasonable structure; convenient and safe to use; energy-saving, environmentally friendly and easy to carry. DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the overall structure of the present invention.

Figure 2 is an exploded perspective view of the assembly of Figure 1.

Figure 3 is a schematic view of the structure of the frame of Figure 2.

Figure 4 is an assembly view of the handlebar of Figure 1.

Figure 5 is a schematic exploded view of the assembly of Figure 4.

Fig. 6 is a view showing the state of the lock of Fig. 4.

Fig. 7 is a view showing the release state of Fig. 4.

Figure 8 is an assembled view of the steering vertical shaft of Figure 1.

Figure 9 is a schematic view showing the connection of the lower end of the steering vertical shaft and the steering knuckle in Figure 8.

Figure 10 is a schematic view of the locking sleeve of Figure 1.

Figure 11 is a schematic view showing the open state of Figure 10.

Figure 12 is an exploded perspective view of the assembly of Figure 10.

Figure 13 is a schematic view of the locking member of Figure 1 showing the open state.

Figure 14 is an exploded perspective view of the assembly of Figure 13.

Figure 15 is a schematic view of the foot pedal of Figure 1.

Figure 16 is a schematic view showing the assembly of the control lever and the auxiliary wheel of Figure 15;

Figure 17 is an exploded perspective view of the assembly of Figure 15.

Figure 18 is a schematic view of the right foot pedal of Figure 1.

19 is a schematic view of the left foot pedal of FIG. 1. Figure 20 is a schematic view of the brake state of Figure 1.

Figure 21 is a schematic view of the electrical part of Figure 1.

Figure 22 is a schematic view of the walking state of Figure 1, showing the auxiliary wheel landing.

Fig. 23 is a schematic view showing the outline of Fig. 1 after being folded up and folded.

Figure 24 is a schematic view showing the structure of the bottom case of Figure 2;

In the figure: 1 walking wheel, 2 auxiliary wheels, 3 racks, 4 foot pedals, 5 steering wheels, 6 front forks, 7 handles, 8 locking parts, 9 steering vertical shafts, 10 handles, 11 power switches, 12 handlebars, 13 brakes, 14 brakes, 15 steering knuckles, 16 frame covers, 17 locking sleeves, 18 batteries, 20 crankshafts, 21 control levers, 22 circuit boards, 23 nuts, 24 springs, 25 pins Axle, 26 charger. detailed description

The present invention will be further described below in conjunction with the accompanying drawings:

Invention motivation

The invention is directed to the inconvenient walking, the legs and the elderly, and provides a portable tool which is light and convenient to carry. Common disabled compatriots are deeply sympathetic in order to walk a long way or rush through the zebra crossing. Therefore, there is the creative motive of the present invention for the benefit of disabled compatriots.

Structure and working principle

As shown in the figure, the walking machine is mainly composed of a walking wheel 1, an auxiliary wheel 2, a frame 3, a foot board 4, a steering wheel 5, a front wheel fork 6, a locking member 8, a steering vertical shaft 9, a handlebar 10, a hand The sleeve 12, the brake wire 13, the brake lever 14, the steering knuckle 15, the frame cover 16, the locking sleeve 17, and the power source are formed;

The frame 3 (see Fig. 3) is a square metal casing having a front fork hole 33 for mounting the front fork 6 at the front end and a rear fork 31 for mounting the traveling wheel 1 at the rear end. Attaching the lifting lugs 32 of the footboard 4, the lifting lugs 32 have four on each side, evenly distributed, two in one group, and having shaft holes therein; a frame cover 16 is mounted on the frame 3, the frame The cover 16 includes a bottom case 161 and an upper cover 162, wherein in the bottom case 161 is a battery 18, and the battery 18 is driven The DC motor of the traveling wheel 1 is powered. At the rear of the bottom case 161, there is a seat 161 1. The bearing seat 1611 is fixed with a locking sleeve 17 for locking the steering vertical shaft 9, which is supported by the bracket 171. The open ring 172, the clamping lever 173, and the shaft 174 are formed. The bracket 171 is fixed on the support 1611 by screws 175. The upper end of the bracket 171 is hinged to the split ring 172 through the shaft 174, and the upper end of the split ring 172 is respectively The groove 1722 and the protrusion 1721 are matched with each other, and a clamping pressure rod 173 is fixed on one of the split rings by a pin 25, and when the pressure rod 173 is raised, the open ring is opened, when the pressure is pressed When the rod 173 is pressed, the split ring is closed.

The steering vertical shaft 9 (see FIG. 8) is mainly composed of an outer cylinder 91, a telescopic rod 92, and a shaft head 93. The outer cylinder 91 has an open groove 921, and the inner wall has a convex strip 922, and the outer rod of the telescopic rod 92 has a convex strip 922. The matching groove 91 1 , the telescopic rod 92 telescopically moves in the outer cylinder 91 ; a locking member 8 for locking the telescopic rod 92 is fixed on the outer cylinder 91 (see FIGS. 1 1- 12 ), and the locking member 8 is closed by the mouth The sleeve 81 and the eccentric presser 82 are formed, wherein the flat pin shaft 84 passes through the flat hole 821 at the opening of the tube 81, one end of which is connected to the nut 23, and the other end of the hole 841 is hinged to the press handle 82 through the sleeve 85. When the tightening rod 92 is required, the pressure lever 82 is pressed, and under the action of the eccentric circle 822, the opening of the tube 81 is clamped, and the rod 92 is fixed at this time. On the contrary, the pressure lever 82 is lifted, and the rod 92 is loosened. The lower end of the shaft head 93 is coupled to the steering knuckle 15 through a pin shaft. The knuckle 15 is composed of a chuck 151 and a telescopic bayonet 152, wherein the chuck 151 is engaged in the fork shaft, and the upper end passes through the shaft and the shaft head 93. Hinged together, there is a sleeve 153 on the side of the chuck 151. The bayonet 152 is mounted in the tube 153 by a spring 24, and the shaft head 93 also has a fitting with the bayonet 152. The hole 931, when the hole 931 corresponds to the bayonet 152, the bayonet 152 is inserted into the hole 931 under the action of the spring, thereby fixing the steering vertical shaft 9, and pulling the bayonet 152 can fold the shaft 9; the upper end of the telescopic rod 92 The handle sleeve 12 is connected to the handle sleeve 12, and the handle sleeves 12 are respectively forked, and the handle ends 10 are respectively connected to the handlebars 10 through the pinion 20 (see FIG. 4-7), wherein the end of the handlebar sleeve 12 has two layers of bosses 121. There is an empty slot 122 between the bosses 121, and a slot 123 is formed in the hole of the boss 121. The end of the handle 10 has a three-layer boss 121 which is inserted into the slot 122 of the handle sleeve 12, and the boss 121 The hole also has a tooth groove 123, the pinion 20 has a convex tooth 201, the convex tooth 201 is an empty groove 202, and the lower part of the pinion 20 is an optical axis 203, and the spring 24 is sleeved thereon, and the boss 121 is inserted into each other. The pinion 20 is inserted into the hole of the boss 121. Under the action of the spring 24, the convex tooth 201 of the pinion 20 meshes with the slot 123, and the handle 10 is fixed. When the pinion 20 is pushed upward, the tooth is convex. 201 is separated from the slot 123, and the slot 202 is now The optical axis 203 corresponds to the slot 123, and the handlebar 10 is foldable.

The footrest 4 (see Fig. 15-19) has a hanging member 41 on the side, a positioning seat 42 and a control lever 21 on the bottom surface, and the seat 42 has two holes, one of which is provided with a positioning shaft 43, and one end of the shaft 43 is a positioning plate 44. The other side of the disk 44 has an auxiliary axle 45. The shaft 45 and the shaft 43 are not on one axis (having an eccentricity), the shaft 45 is fixed to the auxiliary wheel 2 via the wheel sleeve 46, and the shaft end of the shaft 43 is further provided with a torsion spring 47, and The end surface of the disk 44 has a positioning hole 441 and a positioning block 442; the middle of the lever 21 has a fulcrum 212, one end of which is a force applying plate 211, and the other end has a positioning rod 213, and the other end of the rod 213 passes through the hole 42 of the seat 42 The 441 cooperates with the block 442, and has a tension spring 48 on the control lever between the fulcrum 212 and the positioning rod 213; the hanging member 41 is hinged with the lifting lug 32 on both sides of the frame 3 through the pin shaft, and one end of the hanging member 41 can be combined with the machine The inner wall of the frame 3 is in contact, and when the vehicle is normally walking, the auxiliary wheel 2 is in contact with the ground. At this time, the positioning rod 213 is inserted into the positioning hole 441 by the tension spring 48, and when the auxiliary wheel 2 needs to be retracted, the force plate is pushed. 21, the rod 213 exits the hole 441, at this time in the torsion spring Under the action of 47, the auxiliary wheel 2 is rotated by an angle, and the rod 213 is caught on the side of the positioning block 442.

The brake mechanism includes a brake lever 14, a brake wire 13, and a brake block 19.

The machine is further provided with a controller circuit board 22, and a charging interface 221 is provided on the circuit board 22.

Instructions

Stand on the left and right foot pedals, turn on the power switch on the handlebar, and walk the walker. When folding and folding, lift the gear shaft and close the handle; then loosen the locking member and retract the telescopic rod; then release the bayonet to fix the steering vertical shaft in the locking sleeve; then the left and right foot pedals Fold up and suck them together through the magnets on the rack. At this time, the whole machine can be removed by the handle.

Claims

What is claimed is: 1. A portable electric mobility machine comprising: a frame, a traveling mechanism, a steering mechanism, a brake mechanism, and a power source, wherein a front end of the frame is provided with a steering wheel, and the steering wheel is coupled to a lower end of the hinged vertical shaft, the steering The upper end of the vertical shaft is provided with a handlebar, and a walking wheel is arranged at the rear end of the frame, the traveling wheel is driven by a motor, a battery is arranged on the upper part of the frame, and a foot pedal is respectively connected on both sides of the frame, An auxiliary wheel is provided below the foot pedal.

2. The portable electric mobility attendant machine according to claim 1, wherein the frame is a rectangular parallelepiped, the front end of which is provided with a front wheel fork hole, and the fork shaft of the front wheel fork is mounted in the hole, the front fork a steering wheel is mounted thereon, and a bearing is arranged between the fork shaft and the front wheel fork hole, and the fork shaft is fixed in the front wheel fork hole by a nut; a rear wheel fork is arranged at a rear end of the frame, and a driving wheel is fixed therein; There are lugs on the sides of the rack that connect the foot pedals.

3. The portable electric mobility attendant according to claim 1, wherein said steering vertical shaft comprises an outer cylinder and a telescopic rod, wherein a locking member for locking the telescopic rod is provided on the outer cylinder, and the lower end of the outer cylinder passes through the pin shaft Connected to the steering knuckle, the chuck under the knuckle is snapped into the fork shaft, and a telescopic bayonet is further disposed on the knuckle, the telescopic pin can be inserted into the positioning hole at the lower end of the outer cylinder; the top end of the telescopic rod A handlebar is attached, and the handlebar is hinged to the handlebar through the pinion.

4. The portable electric walking machine according to claim 1, wherein the side of the footboard is provided with a hanging piece, and the hanging piece is hinged to the lifting ear on both sides of the frame through the pin shaft, and the hanging piece can be connected with the machine at one end. The inner wall of the frame is in contact with a control lever on the bottom surface of the pedal. The middle of the control lever is provided with a fulcrum, one end of which is a force plate, and the other end has a positioning rod, and the positioning rod and the positioning hole on the positioning plate respectively The positioning block is matched with a positioning shaft on one side and an auxiliary axle on the other side, wherein an auxiliary wheel is mounted on the auxiliary axle, the positioning shaft is fixed on the bottom surface of the pedal, and a control lever between the fulcrum and the positioning rod There is a tension spring on the top.

5. The portable electric mobility attendant according to claim 1, wherein said handlebar is provided with a brake lever, and the brake lever is connected to a shutter via a brake line, and the shutter can contact the walking wheel.

6. The portable electric scooter according to claim 1, wherein the handle is provided with a power switch; The side of the frame is provided with a magnetic block that sucks the foot pedal.

7. The portable electric mobility attendant according to claim 1, wherein the frame is provided with a rack cover, the rack cover has a battery, and a locking sleeve is disposed at a rear end of the rack cover. The locking sleeve includes a bracket and a split ring in which the two semicircular tubes are butted together, wherein a clamping strut is provided at the open loop.

8. The portable electric mobility attendant according to claim 1, wherein the frame is provided with a seat.

9. The portable electric walking machine according to claim 3, wherein the end of the handle sleeve is provided with a boss, and the boss is provided with a slot, wherein a slot is provided in the hole of the boss. a boss is arranged at the end of the handle to cooperate with the boss of the handle sleeve, and the slot of the boss is also provided with a tooth groove, and a pinion is mounted in the hole of the boss, and the tooth shaft has a convex tooth. There is an empty groove between the convex teeth, an end cover is arranged at the lower end of the pinion, and a spring is arranged in the end cover, and one end of the spring is supported on the end surface of the boss.

10. The portable electric walker according to claim 3, wherein the telescopic bayonet is disposed in a sleeve of the steering knuckle, wherein a spring is disposed on the telescopic bayonet in the sleeve; the locking member is a An open sleeve, wherein an eccentric press is provided at the opening; and the handle is provided on the outer cylinder.

A portable electric scooter according to claim 4, wherein the positioning hole and the positioning block on the positioning plate are disposed on both sides of the disk; the positioning axis on the positioning plate and the auxiliary wheel shaft are not on one axis.