CN2223715Y - Children's cycle with four wheels able to change direction synchronously - Google Patents

Abstract

The utility model relates to a children's cycle with four wheels able to change direction synchronously, which comprises a handlebar, a cycle seat, a main upward suspensioned beam and a front and a back wheels, wherein, a U-shaped front bogie is fixed to the handlebar, the lower end is provided with a double crank shaft with the front wheel and a foot board, the back end of the main upward suspensioned beam is provided with a back shaft, and two steering coupled rods are crossly hinged between both ends of a crankshaft and both ends of the back shaft. The front and the back wheels can be simultaneously carried out the contrarotation. The rotation of the handlebar is small, and the large rotary angle can be obtained; the shift of the center-of-gravity is small and can be automatically regulated; the stability of the cycle can be enhanced greatly and is different to overturn. The utility model has the advantages of simple structure, artful design, easy fabrication and low cost.

Description

Front and back wheel turns to the four-wheel perambulator synchronously

The utility model relates to a kind of four-wheel entertainment body-building perambulator.

In the prior art four-wheel perambulator its turn to and can only rely on front-wheel, its deficiency is that when steering angle was excessive, whole center of gravity was serious to bias internal, made whole vehicle body shakiness, overturned easily.

The utility model purpose provides a kind of front and back wheel and turns to the four-wheel perambulator synchronously.

This car comprises handlebar, vehicle seat, go up outstanding girder and front and back wheel, it is characterized in that handlebar lower end strut bar passes and is rotatably connected from the sleeve pipe of outstanding girder front end that vehicle seat is installed, the lower end of the U type forecarriage that two front-wheels are fixed by rotatable end mounted thereto of hyperbolic axle and handlebar strut bar, two stretchers are installed on the hyperbolic axle, between a side front-wheel and hyperbolic axle anodontia flywheel being installed is ratchet and pawl arrangement, wherein flywheel internal rotor and front-wheel are fixed, outer rotor by the pin-and-hole on it be fixed on the flywheel finger dish that has finger on the bent axle its and be connected as a single entity, the fixing vertical shaft in rear axle middle part that its two ends are equipped with trailing wheel passes from the sleeve pipe of last outstanding main beam rear end and is rotatably connected, and two two ends that turn to trace are respectively with hyperbolic axle two ends with the rear axle two ends are cross-shaped is hinged.

The utility model specific embodiment accompanying drawings is as follows:

Fig. 1 four-wheel baby carriage structure scheme drawing;

Fig. 2 four-wheel perambulator schematic diagram of mechanism;

Fig. 3 front-wheel and flywheel are installed shaft side figure.

As shown in Figure 1, this car comprises handlebar 3, the outstanding girder 4 of going up of vehicle seat 5 is installed, the strut bar of handlebar lower end passes from the sleeve pipe of last outstanding girder front end and is rotatably connected, the rotatable hyperbolic axle 1 that is installed on it and has stretcher 12 in lower ending opening place with the fixing U-shaped forecarriage 2 of handlebar lower end strut bar, the rotatable front-wheel 11 of installing of crankshaft two end, between a side front-wheel and the bent axle anodontia flywheel being installed therein is ratchet and pawl arrangement, see Fig. 3, wherein flywheel internal rotor 2 usefulness bolts 16 are fixed with front-wheel, outer rotor 15 is connected as a single entity by the finger on the finger dish 13 by pin-and-hole on it and the flywheel finger dish 14 that is fixed on the bent axle, on this is taken turns with on the flywheel outer rotor contraposition position, have the pin-and-hole that its relative position has the ear groove, wherein by packing ring 18, nut 17 and spring 19 are equipped with the bearing pin 10 that its outer end relative position has two auricles, the bearing pin other end cooperates with fixed orifice on the flywheel outer rotor, bent axle and front-wheel are stationary state when the bearing pin pin is gone into this hole, but front-wheel is a sliding state when bearing pin and hole disengagement, the fixing vertical shaft in rear axle 6 middle parts that trailing wheel 7 is installed passes from the sleeve pipe of last outstanding main beam rear end and is rotatably connected, two two ends that turn to trace 3 are respectively with hyperbolic axle two ends with the rear axle two ends are cross-shaped is hinged, a foot-operated backplate 9 is housed on trace, and this mechanism of car sketch as shown in Figure 2.This car ride the transfer motor-car the time, turning under the trace effect rear axle and trailing wheel backward rotation thereupon in the time of front axle and front-wheel steering, so handlebar rotates and can obtain big steering angle when very little.This car also can be fixed flywheel internal rotor and bent axle, and flywheel outer rotor and front-wheel are fixed, and can save flywheel finger dish, and this car can install brake equipment additional simultaneously.

The utility model advantage: but 1, this car front and back wheel synchronous rotating rotates very little to, handlebar Can obtain bigger steering angle; 2, since this car front and back wheel synchronous rotating to, center of gravity Change not quite also and can automatically adjust, therefore this car stability is increased greatly and difficult the overturning; 3, this car has fixing and slides two kinds of riding conditions, can be laborsaving when sliding, alleviate tired Labor can cause simultaneously children's interest of playing; 4, this bassinet structure is simple, design ingenious, Manufacture easily, cost is low, is easy to penetration and promotion.

Claims (3)

1, a kind of front and back wheel turns to the four-wheel perambulator synchronously, comprise handlebar, vehicle seat, go up outstanding girder and front and back wheel, it is characterized in that handlebar lower end strut bar passes and is rotatably connected from the sleeve pipe of outstanding girder front end that vehicle seat is installed, the lower end of the U type forecarriage that two front-wheels are fixed by rotatable end mounted thereto of hyperbolic axle and handlebar strut bar, two stretchers are installed on the hyperbolic axle, between a side front-wheel and hyperbolic axle anodontia flywheel being installed is ratchet and pawl arrangement, wherein flywheel internal rotor and front-wheel are fixed, outer rotor by the pin-and-hole on it be fixed on the flywheel finger dish that has finger on the bent axle its and be connected as a single entity by finger, the fixing vertical shaft in rear axle middle part that its two ends are equipped with trailing wheel passes from the sleeve pipe of last outstanding main beam rear end and is rotatably connected, and two two ends that turn to trace are respectively with hyperbolic axle two ends with the rear axle two ends are cross-shaped is hinged.

2, four-wheel perambulator according to claim 1, it is characterized in that the front-wheel that flywheel is installed with flywheel outer rotor correspondence position on have the pin-and-hole that its relative position has the ear groove, wherein by packing ring, nut and spring the bearing pin that its outer end relative position has two auricles is installed, the bearing pin other end cooperates with fixed orifice on the flywheel outer rotor.

3, four-wheel perambulator according to claim 1 and 2 is characterized in that flywheel internal rotor and bent axle fix, and outer rotor and front-wheel are fixed and saved flywheel finger dish, and this car also can install brake equipment additional simultaneously.

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