CN103723180B - Baby carriage - Google Patents

Abstract

A baby stroller comprises a body and front and rear wheels, wherein the rear wheel is connected to a support frame, a rear cross bar is connected to the rear bottom of the body, and the support frame is connected to the rear cross bar. The support frame can be rotated to a position 90 degrees from the original position. After the position of the support frame is changed, it can be used as a skateboard, so that when people push the baby stroller, they can use the power and inertia of the skateboard to make the baby stroller move forward like sliding on a skateboard at ordinary times, thereby reducing the labor intensity and boredom of pushing the stroller. At the same time, the two front wheels and the rear wheels present a triangular angle, making steering more convenient and flexible.

Description

a stroller

technical field

The invention relates to a stroller, in particular to a dual-purpose stroller.

technical background

Now, the stroller has become an indispensable tool for taking the baby out for a walk or shopping, allowing the baby to lie comfortably in the stroller while reducing the burden on the adult. The baby carriages in the prior art all have four wheels symmetrically located on the same plane. When an adult pushes the baby carriage and needs to turn, he has to exert force on the push rod to the new direction that needs to be changed, so that the wheels move in the target direction. Turning, stiff steering, even moving the wheel by hand to get it to steer. The Chinese patent announcement number is CN202529013U, and the announcement date is November 14, 2012. The patent titled "Baby Carriage" discloses a baby carriage technology, which is equipped with a brake device on a baby carriage with a skateboard, so that the baby carriage Can stop during fast running. But because the four wheels are located on the same plane of symmetry, when pushing the baby carriage, there is still the defect that the steering is not flexible.

Contents of the invention

In order to overcome the above disadvantages, the present invention proposes a stroller that is easy to turn. The stroller includes a body and front and rear wheels, the rear wheels are connected to the support frame, the rear cross bar is connected to the rear bottom of the body, the support frame is connected to the rear cross bar, and the support frame can be rotated to a position of 90° to the original position After the position of the support frame is changed, it can be used as a skateboard, so that when people push the baby carriage, they can use the power and inertia of the skateboard to move the baby carriage forward, reducing the labor intensity and boring feeling of the stroller. At the same time, the two front wheels and the rear wheels present a triangular angle, which makes the steering more convenient and flexible.

The present invention is for solving its technical problem, and the technical solution adopted is:

A baby stroller, comprising a body, front wheels and rear wheels, the rear wheels are connected to a support frame, the support frame is connected to the rear cross bar at the rear bottom of the vehicle body through a connecting piece, so that the support frame can be rotated 90° relative to the rear cross bar, The rear wheels are spherical wheels.

The baby stroller has two rear wheels, which are respectively installed at the left and right ends of the support frame in the length direction. A hole is respectively arranged in the middle part of the support frame and a part near one end, and a chute is arranged between the two holes.

In the above baby carriage, the two holes in the middle part and near one end of the support frame are square through holes, the width of the chute is smaller than the width of the square hole, and the chute runs through between the two square holes.

In the above stroller, a square through hole with the same size as that on the support frame is provided at the middle part of the rear cross bar.

In the baby stroller above, the connector includes a square stopper, a screw and a nut, the height of the square stopper is greater than the sum of the thicknesses of the support frame and the rear crossbar, and the outer dimension is equal to the size of the square hole provided on the support frame. There is a gap fit between them, and a circular through hole is set in it. There is a gap fit between the circular through hole and the outer diameter of the screw rod. A step is set at one end of the screw rod. The end surface size of this step is larger than the square hole on the support frame. Size, the outer diameter of the screw and the inner hole of the square limiter are clearance fit, and the outer diameter of the screw is smaller than the width of the chute on the support frame, and the screw passes through the square hole of the support frame and the square hole of the rear cross bar from bottom to top , the square limit piece is sleeved on the outside of the screw rod, put into the square hole of the support frame and the rear cross bar, and finally lock the nut from the screw rod and compress the limit piece.

The baby stroller is provided with a storage basket at the rear of the vehicle body.

Compared with the prior art, the beneficial effect of the present invention is: because the stroller of the present invention comprises vehicle body, front wheel, rear wheel, rear cross bar, bracing frame, limiter, screw rod, nut, rear wheel and bracing frame Connected, the rear cross bar is located at the rear bottom of the vehicle body, the support frame is connected with the rear cross bar, the front wheel is connected with the front bottom of the vehicle body, and the rear wheel is connected with the two ends of the support frame. The middle part of the support frame and the part close to one end are respectively provided with a square hole, and a chute is arranged between the two square holes, the width of the chute is smaller than the width of the square hole, and the middle part of the rear cross bar is provided with a The square through hole, the outer dimension of the limit piece and the square through hole are clearance fit, the through hole of the limit piece and the screw rod are clearance fit, the width of the chute is smaller than the width of the square hole, and the clearance fit with the outer diameter of the screw rod.

The beneficial effect of this structure is: when the stroller does not need the skateboard function, the support frame and the rear cross bar are overlapped and connected in parallel, the square holes in the middle of each are opposite to each other up and down, the screw rods pass through the square holes from bottom to top, and the limit piece Pass through the square hole of the rear cross bar and the support frame and set it on the outside of the screw to limit the angle of the rear cross bar and the support frame. The nut is tightened from the top to the bottom from the screw rod to press the end face of the limiter; when the stroller needs the skateboard function, Remove the nut, take out the limiter, rotate the support frame to make it turn 90°, and slide the screw from the chute to the square hole at the end, leaving the support frame longer for easy pedaling, and then set the upper limit Bits and nuts fix the support plate at this angle. At this time, the stroller has a skateboard function, and a triangle relationship is formed between the rear wheel and the front wheel, so that the adult can turn more flexibly and conveniently when pushing the stroller.

The two rear wheels are spherical wheels, and the beneficial effect is that after the support frame is rotated 90°, the wheels can travel freely.

The rear part of the vehicle body is provided with a storage basket, which has the beneficial effect of enabling the baby carriage to store articles conveniently.

Description of drawings:

Fig. 1 is a schematic diagram of the present invention when the support plate is overlapped with the rear cross bar without using the slide plate function.

Fig. 2 is a schematic diagram of using the sliding board function when the support board and the cross bar of the present invention are in a state of being perpendicular to each other.

Fig. 3 is an assembly diagram of the support plate and the rear cross bar in the present invention.

Fig. 4 is a structural diagram of the support plate in the present invention.

In the figure, 1 is the body, 2 is the push rod, 3 is the front wheel, 4 is the rear wheel, 5 is the rear cross bar, 6 is the support frame, 7 is the screw rod, 8 is the limiter, 9 is the nut, and 10 is the storage basket

detailed description

As shown in FIGS. 1 to 4 , a stroller includes a body 1 , a push rod 2 , a front wheel 3 , a rear wheel 4 , a rear cross bar 5 , a support frame 6 , a screw rod 7 , a stopper 8 and a nut 9 . The two front wheels 3 are connected to the bottom of the vehicle body 1, and the two rear wheels 4 are fixed on both sides of the support frame 6. Two square holes are provided at the middle part and one end of the support frame 6 in the length direction. There is a chute running through it, the size of the two square holes opened by the support frame 6 is 40mm*40mm, the width of the chute of the support frame 6 is 20mm, the shape of the limiter 8 is a square of 39mm*39mm, the limiter 8 In the middle is a through hole with a diameter of 20 mm, an outer diameter of the screw rod of 19 mm, and the size of the bottom surface is larger than the size of the square hole provided on the support frame 6. The nut 9 is matched with the screw rod 7, and the middle part of the rear cross bar 5 is connected with the middle part of the support frame 6. There are square holes of the same size. The support frame 6 with the rear wheels 4 is fixedly connected with the rear cross bar 5, and the rear cross bar 5 is fixedly connected to the rear bottom of the vehicle body 2. The support frame 6 is overlapped and placed under the rear cross bar 5. Pass through the square hole in the middle part of the support frame 6, and pass through the square hole of the rear cross bar 5. The stopper 8 is inserted into the square holes of the rear cross bar 5 and the support frame 6 from top to bottom, and the nuts are used to 9 Twist down from the screw rod 7 to compress the upper end surface of the limiting member 8.

When an adult pushes the baby carriage, he/she holds the push rod with his hand and exerts force forward, so that the baby carriage will move forward. At this time, the two front wheels and the two rear wheels form a mutually symmetrical quadrilateral.

When an adult feels tired or boring, unscrew the nut 9, and take out the stopper 8, rotate the support frame 6 to make it an angle of 90° with the original working angle, move the support frame 6 through the chute, and make the screw rod 7 slide into another square hole at the end of the support frame 6, the stopper 8 is inserted from the square hole of the rear cross bar 5 into the square hole of the support frame 6 from top to bottom, and finally use the nut from the top Lock down and press the 8 ends of the stopper so that the direction of the support frame 6 is fixed at this angle. Adults can step on the panel of the support frame 6 with their feet, and hold the push rod 1 with their hands to push the baby carriage forward, so that the baby carriage can move forward. At this time, the stroller has added the function of a scooter, and adults can use the power and inertia of the skateboard to move the stroller as usual, reducing the labor intensity and boring feeling of the stroller. At the same time, the two front wheels 4 and the rear wheels 3 presents a triangular angle. Since the two rear wheels are spherical wheels, they can travel freely after steering, making the steering more convenient and flexible.

A storage basket 10 is hung on the push rod of the baby body, so that the adult can place things conveniently when pushing the baby carriage for travel.

Claims (4)

1. A baby stroller, comprising a vehicle body, front wheels and rear wheels, characterized in that: the rear wheels are connected to the support frame, and the support frame is connected to the rear cross bar at the rear bottom of the vehicle body through a connecting piece to ensure that the support frame can be positioned relative to the rear cross bar. The rod rotates 90°, and the rear wheel is a spherical wheel. The connecting piece includes a square limit piece, a screw and a nut. The height of the square limit piece is greater than the sum of the thickness of the support frame and the rear cross bar. The dimensions of the square holes set on the frame are clearance fit, and a circular through hole is arranged in it. There is a clearance fit between the circular through hole and the outer diameter of the screw. One end of the screw is provided with a step. The end surface size of the step is Larger than the size of the square hole on the support frame, the outer diameter of the screw rod and the inner hole of the square limiter are clearance fit, and the outer diameter of the screw rod is smaller than the width of the chute on the support frame, the screw rod passes through the square hole of the support frame from bottom to top The square hole of the hole and the rear cross bar, the square spacer is enclosed within the screw rod, puts into the square hole of the support frame and the rear cross bar, and the nut is locked down from the screw rod and compresses the end face of the spacer. 2. The baby stroller according to claim 1, characterized in that: there are two rear wheels, which are respectively installed at the left and right ends of the support frame in the length direction, and a hole is respectively arranged in the middle part and near one end of the support frame, A chute is arranged between the two holes, and the two holes on the middle part and near one end of the support frame are square through holes, the width of the chute is smaller than the width of the square hole, and the chute runs through between the two square holes. 3. The stroller according to claim 2, wherein a square through hole with the same size as that on the support frame is provided at the middle part of the rear cross bar. 4. A stroller according to any one of claims 1-3, characterized in that: a storage basket is provided at the rear of the vehicle body.