CN104015776B - Stroller - Google Patents

Abstract

The invention discloses a stroller for children, which comprises a stroller frame, a front wheel, a rear wheel and a locking mechanism, wherein the stroller frame includes a push rod, a front bracket, a rear bracket, a seat post, a rear support rod and a swing rod, Wherein the lower part of the push rod is rotatably connected to the upper part of the front bracket, the upper part of the rear bracket is rotatably connected to one of the two parts of the push rod and the front bracket, the front part of the seat post is rotatably connected to the front bracket, and the swing rod One end of the swing rod is rotatably connected to the seat post or the swing rod, the other end of the swing rod is rotatably connected to the rear bracket, and the rear stay is rotatably connected between the seat post and the push rod. When the cart frame is folded, the push rod, front bracket, rear bracket, seat post, swing rod, and rear support rod are all close to each other, and the folded cart frame can stand on the ground and has a flat and compact structure. It takes up less space and is easy to store and carry. The children's stroller has a simple structure, fewer rods, simple folding and unfolding operations, and is convenient to use.

Description

stroller

technical field

The invention relates to a stroller for children.

Background technique

The children's stroller in the prior art includes a stroller frame with an unfolded position and a folded position, a wheel assembly arranged at the bottom of the stroller frame, and a wheel assembly arranged on the stroller frame to lock the stroller frame in the unfolded position the locking mechanism. There are many types of existing cart frames, and the number of rods is also different, and the connection relationship and connection position between the rods are different, so the folding principles and folding methods of the cart frames are also different.

Contents of the invention

The object of the present invention is to provide a child stroller with simple structure and convenient folding and unfolding operations.

In order to achieve the above object, the technical solution adopted by the present invention is: a children's stroller, including a stroller frame with an unfolded state and a folded state, a front wheel located at the bottom front of the stroller frame, and a front wheel located at the bottom of the stroller frame. The rear wheel at the bottom rear of the cart frame, the locking mechanism arranged on the cart frame for locking the cart frame in the unfolded state, the cart frame includes:

putter;

a front bracket, the front wheels are mounted on the lower part of the front bracket, and the lower part of the push rod is rotatably connected to the upper part of the front bracket;

a rear bracket, the rear wheel is mounted on the lower part of the rear bracket, and the upper part of the rear bracket is rotatably connected to at least one of the front bracket and the push rod;

a seat post, the front portion of which is pivotally connected to the front bracket;

a swing rod, one end of the swing rod is rotatably connected to the rear bracket, and the other end of the swing rod is rotatably connected to the rear of the seat post;

A rear strut, one end of the rear strut is rotatably connected to the seat post or the swing rod, and the other end of the rear strut is rotatably connected to the push rod.

Preferably, the lower part of the push rod, the upper part of the front bracket, and the upper part of the rear bracket are rotatably connected to each other.

Preferably, the locking mechanism is arranged between the rear bracket and the swing rod for locking the two.

Preferably, the locking mechanism is arranged between the rear bracket and the seat post for locking them.

Preferably, the seat post is rotatably connected to the front bracket via a first shaft, the swing link is rotatably connected to the seat post via a second shaft, and the rear brace is rotatably connected to the seat post via a third shaft. shafts are rotatably connected, and the second shaft is located on the seat post between the first shaft and the third shaft.

Further preferably, the first shaft is located below the transition point between the front bracket and the push rod on the front bracket.

Preferably, when the stroller frame is in an unfolded state, the seat post is located above the swing bar.

Preferably, when folded, the swing rod rotates downward around the rotation shaft between the rear support rod and the swing rod.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: when the children's stroller of the present invention is in the folded state, the push rod, the front support, the rear support, the seat post, the swing bar, and the rear support bar are all connected to each other. Close together, the folded stroller frame can stand on the ground and has a flat and compact structure, which occupies less space and is easy to store and carry. The children's stroller has a simple structure, fewer rods, simple folding and unfolding operations, and is convenient to use.

Description of drawings

Accompanying drawing 1 is the perspective view of the children's stroller of the present invention (in the unfolded state);

Accompanying drawing 2 is the side view of the children's stroller (in the unfolded state) of the present invention;

Accompanying drawing 3 is the perspective view of the children's stroller (in the folded state) of the present invention;

Accompanying drawing 4 is the side view of the children's stroller (in the folded state) of the present invention;

Among them: 1. Push rod; 2. Front bracket; 3. Rear bracket; 4. Seat post; 5. Swing rod; 6. Rear strut; 7. First axis; 8. Second axis; ; 10, front wheel; 20, rear wheel.

detailed description

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

The following definitions of direction are all defined by the direction observed by the child sitting and standing on the stroller when the stroller is installed and in use. The front and rear directions are the left and right directions shown in Figure 2 and Figure 4. The left is the front, the right is the rear, and the up and down directions are the up and down directions in the drawings.

Referring to the children's stroller shown in Figures 1 to 4, it includes a stroller frame in an unfolded state and a folded state, a front wheel 10 located at the bottom front of the stroller frame, and a rear wheel 10 located at the bottom rear of the stroller frame. Wheels 20 , a locking mechanism (not shown in the figure) provided on the cart frame for locking the cart frame in an unfolded state. The stroller frame includes a push rod 1, a front bracket 2, a rear bracket 3, a seat post 4, a swing bar 5 and a rear strut 6.

The bottom of the push rod 1 is rotatably connected to the top of the front bracket 2, and the top of the rear bracket 3 is rotatably connected to at least one part of the push rod 1 and the front bracket 2. In this embodiment, the bottom of the push rod 1, The upper part of the front bracket 2 and the upper part of the rear bracket 3 are rotatably connected together. Front wheel 10 is installed in the bottom of front support 2, and rear wheel 20 is installed in the bottom of rear support 3.

The front portion of the seatpost 4 is rotatably connected to the front bracket 2 through the first shaft 7, and the first shaft 7 is located on the front bracket 2 below the transition point between the front bracket 2 and the push rod 1 and the rear bracket 3. One end of the swing rod 5 is rotatably connected to the seat post 4 through the second shaft 8 , and the other end of the swing rod 5 is rotatably connected to the rear bracket 3 . When the stroller frame is unfolded, the swing rod 5 is located below the seatpost 4, which can provide the support of the seatpost 4 in the up and down direction to a certain extent.

The rear stay 6 is arranged between the seatpost 4 and the push rod 1, the upper part of the rear stay 6 is rotatably connected to the push rod 1, and the lower part of the rear stay 6 is rotatably connected to the seatpost 4 or the swing rod 5, here The lower portion of the rear strut 6 is rotatably connected to the rear portion of the seat post 4 through a third shaft 9 . Wherein, the second shaft 8 is located between the first shaft 7 and the third shaft 9 along the extending direction of the seat post 4 .

A locking mechanism is set between the rear bracket 3 and the swing rod 5 to lock the two, or a locking mechanism is set between the rear bracket 3 and the seat post 4 to lock the two, so that the stroller frame can be in a stable development when it is unfolded. state. Of course, the locking mechanism can also be arranged in other structural forms or in other positions, as long as the rods are fixed to each other when the cart frame is unfolded.

When the stroller of this embodiment is in use, the stroller frame is in the unfolded state, as shown in Figure 1 and Figure 2, the front bracket 2, the rear bracket 3 and the push rod 1 are mutually deployed, and the seat post 4 extends along the front and rear directions , the rear strut 6 is supported between the seat post 4 and the push rod 1 . When the stroller frame needs to be folded, the lock of the locking mechanism is first released, and then the push rod 1 and the seat post 4 move downward under the action of their own gravity, and the seat post 4 moves downward around the second shaft 8, driving the swing The rod 5 rotates relative to the rear bracket 3 and moves downward, wherein the swing rod 5 rotates downward around the rotating shaft between the rear support rod 6 and the swing rod 5 when it rotates. The seat post 4 drives the rear support rod 6 to rotate around the third axis 9 and move downward at the same time, the rear support rod 6 drives the push rod 1 to rotate relative to the rear bracket 3 and gradually moves closer to the rear support 3, and the front end of the seat post 4 also rotates around the third axis A shaft 7 rotates and drives the front bracket 2 to gradually move closer to the rear bracket 3. Finally, the push rod 1, the front bracket 2, the rear bracket 3, the seat post 4, the swing rod 5, and the rear support rod 6 all move closer to each other. The folded cart As shown in Figure 3 and Figure 4. The folded trolley frame can stand independently on the ground, and has a flat and compact structure, occupies less space, and is convenient for storage and carrying. The locking mechanism can be set to a structure that can be unlocked when the rear part of the seat post 4 is pressed down, so that when the stroller frame is folded, the stroller frame can be unlocked and folded by directly pressing the rear part of the seat post 4, and the folding operation is more convenient. convenient.

When the cart frame needs to be expanded, the push rod 1 is lifted up to make it rotate relative to the front bracket 2 and the rear bracket 3. 2 and the rear bracket 3 are relatively expanded, and the locking mechanism is locked, and the cart is in a stable unfolded state.

To sum up, the children's stroller of the present invention has a simple structure, fewer rods, and convenient folding and unfolding operations. The folded stroller has a compact structure, takes up less space, and is easy to carry and store.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (6)

1. a kind of children trolley, including having the stroller frame of deployed condition and folded state, before described stroller frame bottom The front-wheel in portion, the trailing wheel located at described stroller frame bottom rear portion, in described stroller frame be used for by described stroller frame lock It is scheduled on the locking mechanism of deployed condition it is characterised in that described stroller frame includes:

Push rod；

Fore-stock, described front-wheel is arranged on the bottom of described fore-stock, the top phase of the bottom of described push rod and described fore-stock Rotate and connect；

After-poppet, described trailing wheel is arranged on the bottom of described after-poppet, the top of described after-poppet be rotationally connected to described before On at least one of support, described push rod part；

Seat bar, the front portion of described seat bar is rotationally connected on described fore-stock；

Fork, one end of described fork is rotationally connected on described after-poppet, and the other end of described fork is rotationally connected to On the rear portion of described seat bar；

Rear pole, one end of described rear pole is rotationally connected on described seat bar or described fork, described rear pole another End is rotationally connected on described push rod,

Wherein, described locking mechanism is used for locking both between described after-poppet and described seat bar,

During folding, described push rod and described seat bar are turned over, and drive described fork between described rear pole and described fork Pivoted downward so that described fore-stock, after-poppet, seat bar, fork, rear pole and push rod are mutually close together.

2. children trolley according to claim 1 it is characterised in that: the bottom of described push rod, the top of described fore-stock, The top of described after-poppet is mutually pivotally connected together.

3. children trolley according to claim 1 it is characterised in that: described locking mechanism located at described after-poppet with described It is used between fork locking both.

4. children trolley according to claim 1 it is characterised in that: described seat bar and described fore-stock pass through first axle phase Rotate and connect, described fork is rotated by the second axle with described seat bar and is connected, described rear pole passes through the 3rd with described seat bar Axle rotates connection, and described second axle is located between described first axle and described 3rd axle on described seat bar.

5. children trolley according to claim 4 it is characterised in that: described first axle on described fore-stock be located at described The lower section of transit point between fore-stock and described push rod.

6. children trolley according to claim 1 it is characterised in that: when described stroller frame is in deployed condition, institute State the top that a bar is located at described fork.