CN219687408U - Portable pedal-assisted speed-increasing hand buggy - Google Patents

Abstract

A portable pedal boosting and speed increasing handcart is composed of a frame, a telescopic rod, a brake handle, a slide rod, a sleeve, a bottom plate, a front wheel, a supporting plate, a right supporting rod, a right pedal, a right flywheel, a left supporting rod, a left pedal, a left flywheel, a driving shaft, a driving gear, a transition shaft, a driven gear, a driven shaft, a rear wheel, a hole, a right torsion spring, a left torsion spring and a torsion buckle. When the hand buggy is folded into the supporting plate, the hand is pulled to walk, when the foot is needed to step on the power assisting, the supporting plate is opened, the right foot is stepped on the right pedal, through variable speed transmission, the rear wheel obtains torsion and speed increasing, the hand buggy moves forwards, the left foot is stepped on the left pedal, the rear wheel obtains torsion and speed increasing which rotate in the same direction, the power assisting hand buggy continues to move forwards, the left foot and the right foot repeat the actions, and the hand buggy does not stop moving forwards.

Description

Portable pedal-assisted speed-increasing hand buggy

Technical Field

The utility model belongs to mechanical portable hand-pulled vehicles, in particular to a portable hand-pulled vehicle capable of boosting and accelerating by foot stepping.

Background

When the conventional portable hand buggy is used, the hand is pulled to move, the hand pulling force is the only power, the power assisting mode is single, the movement speed is consistent with the foot walking speed of a human body, and the disclosed patent number ZL 2016205801. X of the portable electric power assisting hand buggy is a portable hand buggy model which takes the electricity stored by a storage battery as power and has limited electricity stored by the storage battery, if the electricity stored by the storage battery is not used, the electric power assisting is not needed, the existence of the electric quantity of the storage battery needs to be noted, and the pedal power assisting speed increasing portable hand buggy is not used in the market.

Disclosure of Invention

In order to overcome the defects that the power assisting mode of a common portable hand-pulled vehicle is single, the movement speed is consistent with the walking speed of a human body, the electric power storage of a storage battery of an electric power assisting hand-pulled vehicle is limited, and the need of paying attention to whether the electric power exists or not, the utility model provides the portable foot-stepping power assisting speed increasing hand-pulled vehicle, which not only can move by hand, but also can move in a foot stepping power assisting speed increasing mode, and does not have the storage battery, and does not need to pay attention to whether the electric power exists or not.

The technical scheme adopted for solving the technical problems is as follows: the bicycle comprises a frame, a telescopic rod, a brake handle, a slide bar, a sleeve, a bottom plate, a front wheel, a supporting plate, a right supporting rod, a right pedal, a right flywheel, a left supporting rod, a left pedal, a left flywheel, a driving shaft, a driving gear, a transition shaft, a driven gear, a driven shaft, a rear wheel, a hole, a right torsion spring, a left torsion spring and a torsion buckle, wherein the frame is fixedly connected with the slide bar, the sleeve is sleeved on the slide bar and slides up and down, the sleeve is hinged with the supporting plate, the bottom end of the right supporting rod is hinged with the supporting plate, the top end of the right supporting rod is hinged with the middle part of the right pedal, the tail part of the right pedal is hinged with a right flywheel shell, the right flywheel is an overrunning ratchet mechanism, the right flywheel is fixedly connected with the bottom end of the driving shaft by a straight line distance between the middle part of the right pedal and the tail part of the right flywheel is equal to the straight line distance between the bottom hinge connection point of the right pedal and the center point of the flywheel, the length of the right pedal is equal to the outer radius of the right flywheel, the bottom hinge connection point of the left pedal is equal to the right flywheel is meshed with the outer radius of the right flywheel, the left pedal is meshed with the right flywheel, the left tail part is meshed with the right flywheel, the right tail part is meshed with the right flywheel, the right flywheel is fixed gear, the driving shaft, the transition shaft and the driven shaft pass through the corresponding holes respectively and are fixedly supported at the two ends, the torsion coil of the right torsion spring is sleeved on the right section of the driving shaft, one end of the torsion spring is fixedly connected with the rear part of the supporting plate, the top of the other end of the torsion spring is folded into a circle hinge to be connected with the right flywheel shell, the torsion coil of the left torsion spring is sleeved on the left section of the driving shaft, one end of the torsion spring is fixedly connected with the rear part of the supporting plate, the top of the other end of the torsion spring is folded into a circle hinge to be connected with the left flywheel shell, and the bottom of the torsion buckle is fixedly connected with the supporting plate. When the hand buggy packs the supporting plate, the hand pulls the hand to walk, when the pedal is needed to be stepped on, the supporting plate is opened, the sleeve slides to the lower part of the frame from the upper part of the frame along the sliding rod, the twist button is unscrewed, the right pedal is stepped on by the right foot, the left pedal is stepped on by the left foot, the right pedal is lifted by the standing left foot, the right pedal is lifted under the action of the right torsion spring, the right pedal is stepped on by the right foot, the right pedal drives the right flywheel to rotate, the right flywheel drives the driving shaft to rotate, the driving shaft drives the driving gear to rotate, the driving gear drives the transition gear to rotate, the transition gear drives the driven gear to rotate, the driven gear drives the driven shaft to rotate, the rear wheel is driven to rotate through the variable speed transmission of the transition gear and the driven gear, and the rear wheel obtains torsion and speed increase than the stepping motion of the foot, the power-assisted hand buggy moves forwards, the standing right foot lifts the left foot, the left pedal is lifted under the action of the left torsion spring, the left pedal is stepped on to drive the left flywheel to rotate, the left flywheel drives the driving shaft to rotate in the same direction, the driving shaft drives the driving gear to rotate, the driving gear drives the transition gear to rotate, the transition gear drives the driven gear to rotate, the driven shaft drives the rear wheel to rotate in the same direction, through the variable speed transmission of the transition gear and the driven gear, the rear wheel obtains the torque force of the same rotation and the speed increase of the stepping motion, the power-assisted hand buggy continues to move forwards, the left foot and the right foot repeat the actions, and the power-assisted hand buggy does not stop to move forwards.

The portable hand cart has the beneficial effects that the pedal boosting and speed increasing mode of the portable hand cart is effectively increased on a common portable hand cart, and the electric boosting is not needed, so that the need of paying attention to the existence of electric quantity of a storage battery is avoided, and the portable hand cart is simple in structure and convenient to use.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is an overall schematic of the present utility model.

Fig. 2 is a schematic view of the folded and collapsed.

Fig. 3 is a schematic view of a portion of the components.

In the figure, the bicycle frame is 1, the telescopic rod is 2, the brake handle is 4, the handle is 5, the slide bar is 6, the sleeve is 7, the bottom plate is 8, the front wheel is 9, the support plate is 10, the right support rod is 11, the right pedal is 12, the right flywheel is 13, the left support rod is 14, the left pedal is 15, the left flywheel is 16, the driving shaft is 17, the driving gear is 18, the transition gear is 19, the transition shaft is 20, the driven gear is 21, the driven shaft is 22, the rear wheel is 23, the hole is 24, the right torsion spring is 25, the left torsion spring is 26, and the torsion buckle is formed.

Detailed Description

In the figure, the bicycle frame comprises a bicycle frame 1, a telescopic rod 2, a brake handle 3, a handle 4, a slide rod 5, a sleeve 6, a bottom plate 7, a front wheel 8, a supporting plate 9, a right supporting rod 10, a right pedal 11, a right flywheel 12, a left supporting rod 13, a left pedal 14, a left flywheel 15, a driving shaft 16, a driving gear 17, a transition gear 18, a transition shaft 19, a driven gear 20, a driven shaft 21, a rear wheel 22, a hole 23, a right torsion spring 24, a left torsion spring 25 and a torsion button 26, wherein the bicycle frame 1 is fixedly connected with the slide rod 5, the sleeve 6 is sleeved on the slide rod 5 and slides up and down, the sleeve 6 is hinged with the supporting plate 9, the bottom end of the right supporting rod 10 is hinged with the supporting plate 9, the top end of the right supporting rod is hinged with the middle of the right pedal 11, the tail of the right pedal 11 is hinged with the outer shell of the right flywheel 12, the right flywheel 12 is an overrunning ratchet mechanism, the right section of the driving shaft 16 penetrates through and is fixedly connected with the inner core of the right flywheel 12, the straight line distance between the middle part of the right pedal 11 and the two hinge connection points at the tail part is equal to the straight line distance between the hinge connection point at the bottom of the right support rod 10 and the center point of the right flywheel 12, the length of the right support rod 10 is equal to the outer radius of the right flywheel 12, the bottom end of the left support rod 13 is hinged with the supporting plate 9, the top end of the left support rod is hinged with the middle part of the left pedal 14, the tail part of the left pedal 14 is hinged with the shell of the left flywheel 15, the left flywheel 15 is an overrunning ratchet mechanism, the left section of the driving shaft 16 penetrates through and is fixedly connected with the inner core of the left flywheel 15, the straight line distance between the middle part of the left pedal 14 and the two hinge connection points at the tail part is equal to the straight line distance between the hinge connection point at the bottom of the left support rod 13 and the center point of the left flywheel 15, the length of the left support rod 13 is equal to the outer radius of the left flywheel 15, the middle section of the driving shaft 16 penetrates through and is fixedly connected with the driving gear 17, the driving gear 17 is meshed with the outer radius of the transition gear 18, the transition gear 18 is externally meshed with the transition gear 18, the transition gear 18 is a duplex gear, the middle section of the transition shaft 19 penetrates through and is fixedly connected with the transition gear 18, the transition gear 18 is externally meshed with the driven gear 20, the middle section of the driven shaft 21 passes through and is fixedly connected with the driven gear 20, two ends of the driven shaft 21 pass through holes 23 and are fixedly connected with the rear wheel 22, the diameter of the driving gear 17 is larger than that of the driven gear 20, corresponding holes 23 are formed in the side faces of the left tail wing and the right tail wing of the rear part of the supporting plate 9, the driving shaft 16, the transition shaft 19 and two ends of the driven shaft 21 pass through the corresponding holes 23 respectively and are fixedly supported at two ends, a torsion spring ring of the right torsion spring 24 is sleeved on the right section of the driving shaft 16 in a hollow mode, one end of the torsion spring 24 is fixedly connected with the rear part of the supporting plate 9, the top of the other end of the torsion spring is folded into a hollow mode and is fixedly connected with the left section of the supporting plate 12, one end of the torsion spring 25 is fixedly connected with the rear part of the supporting plate 9, the top of the other end of the torsion spring is folded into a hollow mode and is fixedly connected with the left flywheel 15, and the bottom of the torsion buckle 26 is fixedly connected with the supporting plate 9. When the hand buggy is retracted into the supporting plate 9, the hand is pulled to walk, when the pedal is needed to be stepped on for assisting, the supporting plate 9 is opened, the sleeve 6 slides from the upper part of the frame 1 to the lower part of the frame 1 along the sliding rod 5, the twist button 26 is unscrewed, the right pedal 11 is stepped on by the right foot, the left pedal 14 is stepped on by the left foot, the right pedal 11 is lifted by the standing left foot, the right pedal 11 is stepped on by the right foot under the action of the right torsion spring 24, the right pedal 11 drives the right flywheel 12 to rotate, the driving shaft 16 is driven by the right flywheel 12 to rotate, the driving shaft 16 drives the driving gear 17 to rotate, the driving gear 17 drives the transition gear 18 to rotate, the driven gear 20 drives the driven shaft 21 to rotate, the driven shaft 21 drives the rear wheel 22 to rotate, the torque and the speed of the rear wheel 22 is higher than the speed of the stepping motion of the foot through the variable speed transmission of the transition gear 18 and the driven gear 20, the booster hand buggy moves forward, the standing right foot lifts the left foot, left pedal 14 lifts under the effect of left torsion spring 25, left pedal 14 is stepped on by the left foot, left flywheel 15 rotates, left flywheel 15 drives driving shaft 16 syntropy rotation, driving shaft 16 drives driving gear 17 rotation, driving gear 17 drives transition gear 18 rotation, transition gear 18 drives driven gear 20 rotation, driven gear 20 drives driven shaft 21 rotation, driven shaft 21 drives rear wheel 22 syntropy rotation, through the variable speed transmission of transition gear 18 and driven gear 20, rear wheel 22 obtains the torsion of syntropy rotation and is greater than the acceleration rate of pedal motion again, booster hand buggy continues the forward motion, the repeated above-mentioned action of left and right sides foot, booster hand buggy constantly moves forward.

Claims (1)

1. A portable pedal boosting and speed increasing hand buggy is characterized in that: the novel bicycle is characterized by comprising a bicycle frame (1), a telescopic rod (2), a brake handle (3), a handle (4), a sliding rod (5), a sleeve (6), a bottom plate (7), a front wheel (8), a supporting plate (9), a right supporting rod (10), a right pedal (11), a right flywheel (12), a left supporting rod (13), a left pedal (14), a left flywheel (15), a driving shaft (16), a driving gear (17), a transition gear (18), a transition shaft (19), a driven gear (20), a driven shaft (21), a rear wheel (22), a hole (23), a right torsion spring (24), a left torsion spring (25) and a torsion buckle (26), wherein the tail part of the right pedal (11) is hinged with the outer shell of the right flywheel (12), the right flywheel (12) is an overrunning ratchet mechanism, the right part of the driving shaft (16) is penetrated and fixedly connected with the inner core of the right flywheel (12), the tail part of the left pedal (14) is hinged with the outer shell of the left flywheel (15), the left part of the left pedal (15) is an overrunning ratchet mechanism, the left part of the driving shaft (16) is penetrated and fixedly connected with the inner core of the left flywheel (15), the transition gear (18) is a duplex gear, and the diameter of the driving gear (17) is larger than the diameter of the driven gear (20).