CN107351900B

CN107351900B - Stroller with four wheels capable of being turned simultaneously by operating handlebar

Info

Publication number: CN107351900B
Application number: CN201610300108.1A
Authority: CN
Inventors: 张海艇
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-05-09
Filing date: 2016-05-09
Publication date: 2020-10-30
Anticipated expiration: 2036-05-09
Also published as: CN107351900A

Abstract

A hand push baby carriage capable of operating handle bars to simultaneously steer four wheels comprises a front axle, a rear axle, a front vertical tube, a rear vertical tube, a front arc beam, a rear arc beam, a left shock-absorbing beam, a right shock-absorbing beam, a sleeping basket, a handle bar, a front groove steel body, a rear groove steel body, a single beam tube, a front left wheel, a front right wheel, a rear left wheel, a rear right wheel and four springs, wherein when the hand push baby carriage is used for straight line walking, the handle bars only need to uniformly exert force on two sides, the four wheels have the same landing force, the four wheels do not do steering action, namely the baby carriage is in straight line walking posture, when the hand push the baby carriage to turn right, for example, the right hand pushes down, the landing force of the front right wheel is larger than that of the front left wheel, and the front groove steel body and the front vertical tube incline by 10 degrees to force the front wheel to turn right, the rear wheel turns left to drive the baby carriage to turn right, and similarly, the baby carriage can also turn left only by left hand with force and downward inclination.

Description

Stroller with four wheels capable of being turned simultaneously by operating handlebar

Technical Field

The invention relates to a stroller, in particular to a stroller with four wheels capable of being steered simultaneously by operating a handle.

Background

The existing stroller turns by means of two small wheels arranged at the front part of the stroller or turns leftwards or rightwards, the rear wheel is fixed in China and cannot be matched with the front wheel to perform corresponding steering action, and therefore the stroller can turn by being assisted by people when turning in a narrow place.

Disclosure of Invention

In order to overcome the defects that the turning diameter of the existing baby carriage is large and the front wheels cannot be designed to be large, the invention aims to provide a baby carriage with four wheels turning simultaneously and the front wheels and the rear wheels being as large. In order to achieve the above object, the present invention adopts the following technical solutions: the stroller capable of controlling the four wheels to steer simultaneously consists of a front axle, a rear axle, a front vertical tube, a rear vertical tube, a front arc-shaped cross beam, a rear arc-shaped cross beam, a left damping beam, a right damping beam, a sleeping basket, a handlebar, a front channel steel body, a rear channel steel body, a single beam tube, a front left wheel, a front right wheel, a rear left wheel, a rear right wheel, two bolts, two nuts and four springs. The front end of the independent beam pipe is welded with the front steel frame into a whole, the front steel frame contains the front vehicle vertical pipe, the front steel frame and the front vehicle vertical pipe are connected into a whole by bolts and nuts, the front vehicle vertical pipe can rotate freely around the bolts, the rear end of the independent beam pipe is welded with the rear steel frame into a whole, the rear steel frame contains the rear vehicle vertical pipe, the rear steel frame and the rear vehicle vertical pipe are connected into a whole by bolts and nuts, the rear vehicle vertical pipe can rotate freely around a bolt shaft, the front end of the independent beam pipe is cut into an inclined plane, so that the front steel frame and the front vehicle vertical pipe are not vertical to the ground but inclined forwards by 10 degrees, and the rear end of the independent beam pipe is also cut into an inclined plane, so that the rear steel frame and the rear vehicle vertical pipe are not vertical to the ground but inclined backwards by 10 degrees, the middle position of the front vehicle vertical pipe is drilled with a small hole, the size of the small hole is as large as the diameter of the front vehicle axle, the front vehicle axle penetrates through the hole, the middle position of the front vehicle axle is fixed with the front vehicle vertical pipe through a bolt and a nut, the left end of the front vehicle axle is provided with a front left wheel, the front left wheel can freely rotate around the front vehicle axle, the right end of the front vehicle axle is provided with a front right wheel, the front right wheel can freely rotate around the front vehicle axle, the middle position of the rear vehicle vertical pipe is drilled with a small hole, the size of the small hole is as large as the diameter of the rear vehicle axle, the rear vehicle axle penetrates through the hole, the middle position of the rear vehicle axle is fixed with the rear vehicle vertical pipe through a bolt and a nut, the left end of the rear vehicle axle is provided with a rear left wheel, the rear left wheel can freely rotate around the rear vehicle axle, the right end of the rear vehicle axle is provided with a, the middle position of the front arc-shaped cross beam is connected with the front end of the independent beam, the other two ends of the front arc-shaped cross beam are respectively connected with the left damping beam and the right damping beam, the middle position of the rear arc-shaped cross beam is connected with the rear end of the independent beam, the other two ends of the rear arc-shaped cross beam are respectively connected with the left damping beam and the right damping beam, and the left damping beam and the right damping beam are connected with the handlebar and the sleeping basket through four springs.

The working mode of the invention is; when the baby carriage walks in a straight line, two hands hold the handlebar to apply force uniformly on two sides, at the moment, the landing force of the four wheels is the same, the front and rear two axles are parallel and vertical to the carriage body, namely, the four wheels do not turn, namely, the baby carriage is in a straight line walking posture, when the vehicle is going to turn, for example, to turn right, the right hand only needs to tilt downwards with force, the landing force of the front right wheel is larger than that of the front left wheel, and the front channel steel body and the front vehicle vertical pipe are tilted by 10 degrees, so that the force forces the front axle to rotate clockwise, and the rear axle to rotate in the opposite direction due to the rotation of the front axle and the inclination of the rear channel steel body and the rear vehicle vertical pipe by 10 degrees, therefore, the front left wheel and the front right wheel rotate rightwards, the rear left wheel and the rear right wheel rotate leftwards, so that the baby carrier is well driven to turn rightwards, and the aim of turning leftwards can be fulfilled as long as the baby carrier is downwards inclined with force by the left hand.

The invention has the beneficial effects that: because four wheels rotate simultaneously during turning, the turning diameter is small, the baby carriage can turn around on site and can be used in narrow places, and the other benefit is that the front wheels can be designed to have good obstacle-crossing capability and shock-proof capability.

Drawings

FIG. 1 is a front view of the present invention

FIG. 2 is a left side view of the present invention

FIG. 3 is a bottom view of the present invention

Detailed Description

Referring to the drawings, the embodiment of the invention will be described in detail, and the stroller capable of steering four wheels simultaneously is composed of a front axle 1, a rear axle 12, a front vertical tube 2, a rear vertical tube 13, a front arc-shaped cross beam 4, a rear arc-shaped cross beam 10, a left shock-absorbing beam 5, a right shock-absorbing beam 22, a sleeping basket 7, a handlebar 8, a front channel steel body 20, a rear channel steel body 16, a single beam tube 17, a front left wheel 18, a front right wheel 21, a rear left wheel 15, a rear right wheel 25, two

bolts

3 and 11, two

nuts

19 and 14, and four

springs

6, 9, 23 and 24. The front end of the single beam pipe 17 is welded with the front steel 20 into a whole, the front steel 20 is provided with a front vehicle vertical pipe 2, the front steel 20 is connected with the front vehicle vertical pipe 2 into a whole by a bolt 3 and a nut 19, the rear end of the single beam pipe 17 is welded with the rear steel 16 into a whole, the rear steel 16 is provided with a rear vehicle vertical pipe 13, the rear steel 16 is connected with the rear vehicle vertical pipe 13 into a whole by a bolt 11 and a nut 14, the front end of the single beam pipe 17 is cut into an inclined plane, so that the front steel 20 and the front vehicle vertical pipe 2 are not vertical to the ground but inclined forwards by 10 degrees, the rear end of the single beam pipe 17 is cut into an inclined plane, so that the rear steel 16 and the rear vehicle vertical pipe 13 are inclined backwards by 10 degrees instead of vertical to the ground, a small hole is drilled at the middle position of the front vehicle vertical pipe 2, the size of the small hole is the same as the diameter of the front vehicle axle 1, the front vehicle axle 1 passes through the hole, the bolt 3 and the middle position, The nut 19 is fixed with the front vehicle vertical pipe 2, the left end of the front vehicle axle 1 is provided with a front left wheel 18, the right end of the front vehicle axle 1 is provided with a front right wheel 21, the middle position of the rear vehicle vertical pipe 13 is drilled with a small hole, the size of the rear axle is as large as the diameter of a rear axle 12, the rear axle 12 passes through the hole, the middle position of the rear axle 12 is fixed with a rear vehicle vertical pipe 13 by a bolt 11 and a nut 14, the left end of the rear axle 12 is provided with a rear left wheel 15, the right end of the rear axle 12 is provided with a rear right wheel 25, the middle position of a front arc-shaped cross beam 4 is connected with the front end position of an independent beam 17, and the other two ends are respectively connected with the left shock absorption beam 5 and the right shock absorption beam 22, the middle position of the rear arc-shaped cross beam 10 is connected with the rear end position of the independent beam 17, and the other two ends are respectively connected with the left shock absorption beam 5 and the right shock absorption beam 22, and the left shock absorption beam 5 and the right shock absorption beam 22 are connected with the handlebar 8 and the sleeping basket 7 through four

springs

6, 9, 23 and 24.

Claims

1. A stroller capable of steering four wheels simultaneously by operating a handlebar is composed of a front axle (1), a rear axle (12), a front vertical tube (2), a rear vertical tube (13), a front arc-shaped cross beam (4), a rear arc-shaped cross beam (10), a left shock-absorbing beam (5), a right shock-absorbing beam (22), a sleeping basket (7), a handlebar (8), a front channel steel body (20), a rear channel steel body (16), a single beam tube (17), a front left wheel (18), a front right wheel (21), a rear left wheel (15), a rear right wheel (25), two bolts (3) and (11), two nuts (19) and (14), four springs (6), (9), (23) and (24), and is characterized in that; the front end of the single beam pipe (17) is welded with the front channel steel (20) into a whole, the front channel steel body (20) is internally provided with a front vehicle vertical pipe (2), the front channel steel body (20) and the front vehicle vertical pipe (2) are connected into a whole by a bolt (3) and a nut (19), the rear end of the single beam pipe (17) is welded with the rear channel steel body (16) into a whole, the rear channel steel body (16) is internally provided with a rear vehicle vertical pipe (13), and the rear channel steel body (16) and the rear vehicle vertical pipe (13) are connected into a whole by a bolt (11) and a nut (14);

the front end of the single beam pipe (17) is cut into an inclined plane, so that the front channel steel body (20) and the front vehicle vertical pipe (2) are not vertical to the ground but incline forwards by 10 degrees, and the rear end of the single beam pipe (17) is also cut into an inclined plane, so that the rear channel steel body (16) and the rear vehicle vertical pipe (13) are not vertical to the ground but incline backwards by 10 degrees.

2. A stroller according to claim 1, wherein the handle bars are arranged to steer four wheels simultaneously, further comprising: a small hole is drilled in the middle of the front vehicle vertical pipe (2), the size of the small hole is as large as the diameter of the front vehicle axle (1), the front vehicle axle (1) penetrates through the hole, the middle of the front vehicle axle (1) is fixed with the front vehicle vertical pipe (2) through a bolt (3) and a nut (19), a front left wheel (18) is mounted at the left end of the front vehicle axle (1), a front right wheel (21) is mounted at the right end of the front vehicle axle (1), a small hole is drilled in the middle of the rear vehicle vertical pipe (13), the size of the small hole is as large as the diameter of the rear vehicle axle (12), the rear vehicle axle (12) penetrates through the hole, the middle of the rear vehicle axle (12) is fixed with the rear vehicle vertical pipe (13) through a bolt (11) and a nut (14), a rear left wheel (15) is mounted at the left end of the rear vehicle axle (12), and a rear.