阅读说明：本技术 一种可自动躲避障碍的小车 (Trolley capable of automatically avoiding obstacles ) 是由 徐秀阳 于 2018-06-11 设计创作，主要内容包括：本发明涉及儿童玩具技术领域,具体为一种可自动躲避障碍的小车,支撑板下端面通过两个第一连接杆连接有两个第一保护罩,所述第一保护罩的内侧壁转动连接有第一滚动轮,所述支撑板上开设的通孔内通过轴承固定插接有第二连接杆,所述第二连接杆下端连接有第二保护罩。障碍物将齿条顶动,齿条通过第二齿轮带动第一齿轮朝与障碍物相反的方向转动,第一齿轮带动第二连接杆和第二滚动轮转动,协助儿童完成转向的问题,小车可自动躲避障碍,防止孩子因不能很好的转向与障碍物相撞,造成身体损伤,越过障碍后,在弹簧弹性的作用下,第四连接杆通过限位块顶动齿条恢复原位,帮助儿童使小车恢复直行状态。(The invention relates to the technical field of toys for children, in particular to a trolley capable of automatically avoiding obstacles. The rack is pushed up to the barrier, the rack passes through the second gear and drives first gear and rotate towards the direction opposite with the barrier, first gear drives second connecting rod and second roll the wheel and rotate, help children to accomplish the problem that turns to, the obstacle can be dodged automatically to the dolly, prevent that children from colliding with the barrier because of the turning to that can not be fine, cause the health damage, cross behind the obstacle, under spring elastic's effect, the fourth connecting rod pushes up the rack through the stopper and resumes the normal position, help children make the dolly resume the straight-going state.)

1. The utility model provides a dolly that can avoid obstacle automatically, includes backup pad (1), its characterized in that: the lower end face of the supporting plate (1) is connected with two first protective covers through two first connecting rods (2), the inner side wall of each first protective cover is rotatably connected with a first rolling wheel (3), a second connecting rod (5) is fixedly inserted in a through hole formed in the supporting plate (1) through a bearing (4), the lower end of each second connecting rod (5) is connected with a second protective cover, the inner side wall of each second protective cover is rotatably connected with a second rolling wheel (7), a baffle (6) is movably sleeved on a section, located above the supporting plate (1), of each second connecting rod (5), the lower end of each baffle (6) is connected with the upper end face of the supporting plate (1), and the upper end of each second connecting rod (5) is connected with a steering wheel;

Second connecting rod (5) are located one section fixed first gear (8) of having cup jointed between second safety cover and backup pad (1), first gear (8) meshing second gear (9), and second gear (9) rotate with the lower terminal surface of backup pad (1) and are connected, second gear (9) meshing rack (10), the bar groove has all been seted up on the upper and lower terminal surface of rack (10), two equal sliding connection has two L type poles (11) in the bar groove, lie in different bar inslot portion, with two of one side L type pole (11) are connected with same third connecting rod, and the upper end of third connecting rod is connected with the lower terminal surface of backup pad (1).

2. The vehicle as claimed in claim 1, wherein the vehicle comprises: the connecting line of the two first rolling wheels (3) and the second rolling wheel (7) is an isosceles triangle.

3. the vehicle as claimed in claim 1, wherein the vehicle comprises: the upper end surface of the rack (10) is rotatably connected with two third rolling wheels (12).

4. a vehicle for automatic obstacle avoidance according to claim 3, wherein: two the lateral wall that the third connecting rod kept away from each other all is connected with sleeve (14), sleeve (14) internalization is pegged graft and is had fourth connecting rod (15), fourth connecting rod (15) are located and are connected with spring (16) between the inside wall of sleeve (14) inside one end and sleeve (14), two one side that fourth connecting rod (15) kept away from each other all is equipped with stopper (13), and the lower extreme of stopper (13) is connected with the up end of rack (10), and stopper (13) are located between two third rolling wheels (12).

5. An automatically obstacle-evading vehicle as claimed in claim 4, wherein: the two third connecting rods, the third rolling wheels (12), the limiting blocks (13) and the sleeves (14) are symmetrically arranged.

Technical Field

The invention relates to the technical field of toys for children, in particular to a trolley capable of automatically avoiding obstacles.

background

Along with the improvement of living standard, more and more children's toys are enriched in families, for example, children's swing cars are loved by vast children, but the children have poor direction sense and control capability, and can not avoid well when meeting obstacles, so that the children can be injured, and therefore, the car capable of automatically avoiding the obstacles is designed.

Disclosure of Invention

The invention aims to provide a trolley capable of automatically avoiding obstacles so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

A trolley capable of automatically avoiding obstacles comprises a supporting plate, wherein the lower end face of the supporting plate is connected with two first protective covers through two first connecting rods, the inner side walls of the first protective covers are rotatably connected with first rolling wheels, second connecting rods are fixedly inserted in through holes formed in the supporting plate through bearings, the lower ends of the second connecting rods are connected with second protective covers, the inner side walls of the second protective covers are rotatably connected with second rolling wheels, a section of each second connecting rod, which is positioned above the supporting plate, is movably sleeved with a baffle, the lower end of each baffle is connected with the upper end face of the supporting plate, and the upper ends of the second connecting rods are connected with a steering wheel;

One section fixed cover that the second connecting rod is located between second safety cover and the backup pad has been cup jointed first gear, first gear engagement second gear, the lower terminal surface rotation of second gear and backup pad is connected, second gear engagement rack, the bar groove has all been seted up on the upper and lower terminal surface of rack, two equal sliding connection has two L type poles in the bar inslot, is located different bar inslot portions, with two of one side L type pole is connected with same third connecting rod, and the upper end of third connecting rod is connected with the lower terminal surface of backup pad.

Preferably, a connecting line of the two first rolling wheels and the second rolling wheel is an isosceles triangle.

Preferably, the upper end surface of the rack is rotatably connected with two third rolling wheels.

preferably, two the lateral wall that the third connecting rod was kept away from each other all is connected with the sleeve, the sleeve internalization is pegged graft and is had the fourth connecting rod, the fourth connecting rod is located and is connected with the spring between the inside one end of sleeve and the telescopic inside wall, two one side that the fourth connecting rod was kept away from each other all is equipped with the stopper, and the lower extreme and the up end of rack of stopper are connected, and the stopper is located between two third rolling wheels.

Preferably, the two third connecting rods, the third rolling wheels, the limiting block and the sleeve are symmetrically arranged.

Compared with the prior art, the invention has the beneficial effects that:

1. The obstacle pushes the rack, the rack drives the first gear to rotate in the direction opposite to the obstacle through the second gear, the first gear drives the second connecting rod and the second rolling wheel to rotate, the problem that the children complete steering is solved, the trolley can automatically avoid the obstacle, and the body damage caused by collision between the children and the obstacle due to the fact that the children cannot steer well is prevented;

2. after crossing the obstacle, under the elastic effect of spring, the fourth connecting rod pushes the rack through the stopper and resumes the normal position, helps children make the dolly resume the straight-going state.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right side view of the structure of the present invention;

FIG. 3 is an enlarged view of the structure A of the present invention.

in the figure: the device comprises a supporting plate 1, a first connecting rod 2, a first rolling wheel 3, a bearing 4, a second connecting rod 5, a baffle 6, a second rolling wheel 7, a first gear 8, a second gear 9, a rack 10, an L-shaped rod 11, a third rolling wheel 12, a limiting block 13, a sleeve 14, a fourth connecting rod 15 and a spring 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

The utility model provides a can dodge dolly of obstacle automatically, including backup pad 1, 1 terminal surface is connected with two first safety covers through two head rods 2 under the backup pad, the inside wall of first safety cover rotates and is connected with first wheel 3 that rolls, it has second connecting rod 5 to peg graft through bearing 4 is fixed in the through-hole of seting up in the backup pad 1, 5 lower extremes of second connecting rod are connected with the second safety cover, the inside wall of second safety cover rotates and is connected with second wheel 7 that rolls, the line of two first wheel 3 that rolls and a second wheel 7 that rolls is isosceles triangle, guarantee that the automobile body is steady, baffle 6 has been cup jointed in one section activity that second connecting rod 5 is located backup pad 1 top, the lower extreme of baffle 6 is connected with the up end of backup pad 1, the upper end of second connecting rod 5 is connected with the steering wheel.

One section fixed cover that second connecting rod 5 is located between second safety cover and backup pad 1 has connect first gear 8, first gear 8 meshes second gear 9, second gear 9 rotates with the lower terminal surface of backup pad 1 and is connected, second gear 9 meshes rack 10, the up end of rack 10 rotates and is connected with two third rolling wheels 12, reduce the frictional force with the barrier, rack 10 is last, the bar groove has all been seted up on the lower terminal surface, equal sliding connection has two L type poles 11 in two bar inslots, be located different bar inslot portions, two L type poles 11 with one side are connected with same third connecting rod, the upper end and the lower terminal surface of backup pad 1 of third connecting rod are connected.

the lateral wall that two third connecting rods kept away from each other all is connected with sleeve 14, sleeve 14 internalization is pegged graft and is had fourth connecting rod 15, fourth connecting rod 15 is located and is connected with spring 16 between the inside one end of sleeve 14 and the inside wall of sleeve 14, one side that two fourth connecting rods 15 kept away from each other all is equipped with stopper 13, the lower extreme of stopper 13 is connected with the up end of rack 10, stopper 13 is located between two third rolling wheels 12, two third connecting rods, third rolling wheel 12, stopper 13 and sleeve 14 all are the symmetry and set up.

The children sit on the supporting plate 1, the ground is pedaled to drive the trolley to advance, the hand steering wheel drives the second rolling wheels 7 to rotate through the second connecting rods 5 to achieve the steering effect, when the front direction meets an obstacle, the rack 10 is in contact with the obstacle, the obstacle pushes the rack 10 to move under the limitation of the L-shaped rods 11, the rack 10 drives the first gear 8 to rotate in the direction opposite to the obstacle through the second gear 9, the first gear 8 drives the second connecting rods 5 and the second rolling wheels 7 to rotate, the steering of the children is assisted, the trolley can automatically avoid the obstacle, and the children are prevented from colliding with the obstacle due to the fact that the children cannot steer well to cause body damage;

the rack 10 drives the limiting block 13 to move synchronously when moving, the limiting block 13 abuts against the fourth connecting rod 15, the spring 16 is compressed, after the obstacle is crossed, the fourth connecting rod 15 pushes the rack 10 to restore the original position through the limiting block 13 under the elastic action of the spring 16, and the trolley is helped to restore the straight-moving state of the children.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.