CN104149835A - Baby stroller - Google Patents

Abstract

The invention discloses a children's stroller, wherein the stroller frame includes a push rod, a front bracket, and a rear bracket whose upper part is rotatably connected to the push rod, and the lower part of the push rod is arranged on the On the front bracket, the cart frame also includes a seatpost assembly located between the front bracket and the rear bracket, the front part of the seatpost assembly is rotatably connected to the upper part of the front bracket, the rear part of the seatpost assembly is rotatably connected to On the rear bracket, when the stroller frame is unfolded, a triangular structure is formed between the push rod, the seatpost assembly and the rear bracket; when the stroller frame is folded, the push rod, the front bracket, the rear bracket and the seat post assembly are close to each other. The child stroller has few rods, is convenient to fold and unfold, has a compact structure after folding, takes up little space, can stand on the ground independently, and is convenient to carry and store.

Description

stroller

the

technical field

The invention relates to a stroller for children.

Background technique

The children's stroller in the prior art generally includes a foldable stroller frame, a wheel assembly arranged at the bottom of the stroller frame, and a locking mechanism arranged on the stroller frame for locking it in an unfolded state. 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.

the

Contents of the invention

The purpose 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, comprising a stroller frame in an unfolded state and a folded state, a wheel assembly arranged at the bottom of the stroller frame, The trolley frame is locked in the locking mechanism in the unfolded state. The cart frame includes a push rod, a front bracket, and a rear bracket whose upper part is rotatably connected to the push rod. The lower part of the push rod is along the front The length extension direction of the bracket is relatively slidably arranged on the front bracket, and the cart frame also includes a seatpost assembly arranged between the front bracket and the rear bracket, the front part of the seatpost assembly Rotately connected to the upper part of the front bracket, the rear part of the seatpost assembly is rotatably connected to the rear bracket, when the cart frame is in the unfolded state, the push rod, the seatpost A triangular structure is formed between the component and the rear bracket; when the cart frame is in a folded state, the push rod, the front bracket, the rear bracket and the seat post assembly are close to each other.

Preferably, the lower part of the push rod is fixedly provided with a sliding piece, and the sliding piece is provided on the front support so as to slide along the length extension direction of the front support.

Further, the front part of the seatpost assembly is rotatably connected to the front bracket through a rotation shaft, and the slider is located below the rotation shaft on the front bracket.

Further, the locking mechanism is arranged between the slider and the front bracket for locking the slider on the front bracket.

Furthermore, the stroller frame further includes an unlocking handle provided at the front of the seatpost assembly for unlocking the locking mechanism.

Preferably, the upper part of the front bracket is fixedly provided with a sliding piece, and the sliding piece is provided on the push rod so as to slide along the length extension direction of the push rod.

Preferably, the seat post assembly includes a seat post whose length extends along the front-rear direction, and the two ends of the seat post are pivotally connected to the front support and the rear support respectively.

Preferably, the seatpost assembly includes a first rod and a second rod that are rotatably connected at one end, the other end of the first rod is rotatably connected to the front bracket, and the other end of the second rod is rotatably connected to the rear bracket.

Preferably, the stroller frame includes side brackets on both sides, a strut assembly connected between the side brackets on both sides, and each side bracket includes the front bracket, the rear bracket Bracket, the push rod and the seat post assembly, the support rod assembly includes a bottom support rod assembly, and a rear bracket that can be folded along the left and right directions of the cart frame and is arranged between the rear brackets on both sides The rear brace assembly, the bottom brace assembly includes bottom braces that intersect each other and are rotatably connected at the intersections, the rear part of the bottom brace is rotatably connected to the bottom of the rear bracket on one side, the bottom The front portion of the strut is rotatably connected to the front portion of the seatpost assembly on the other side.

Further, the front part of the bottom brace is rotatably connected to the seatpost assembly through a connecting piece, and the connecting piece is located on the seatpost assembly between the seatpost assembly and the front bracket. front of the axis of rotation.

Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art: the children's stroller of the present invention has a simple structure, a small number of rods, convenient folding and unfolding operations, and the stroller frame can be folded when folded. Folding along the left and right and front and rear directions, the folded structure is compact, takes up little space, and can stand on the ground, making it easy to carry and store.

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 of the present invention in the unfolded state;

Accompanying drawing 3 is the side view of the children's stroller of the present invention in a half-folded state;

Accompanying drawing 4 is the rear view of the children's stroller of the present invention in a half-folded state;

Accompanying drawing 5 is the side view of the stroller of the present invention in a folded state;

Accompanying drawing 6 is the rear 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 rod; 5. Sliding sleeve; Foot plate; 9, rotating shaft; 10, connector; 20, front wheel; 30, rear wheel.

the

Detailed ways

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 directions are all defined according to the front-back, left-right, and up-down directions observed by the child sitting and standing on the stroller when the stroller is in use.

Referring to the children's stroller shown in Figures 1 to 6, it includes a stroller frame with an unfolded state and a folded state, a wheel assembly arranged at the bottom of the stroller frame, and a lock for locking the stroller frame in the unfolded state. locking mechanism (not shown). The stroller frame includes side brackets respectively located on the left and right sides, and each side bracket includes a push rod 1, a front bracket 2, a rear bracket 3 and a seat post assembly. The wheel assembly includes a front wheel 20 mounted on the bottom of the front frame 2 and a rear wheel 30 mounted on the bottom of the rear frame 3 .

The upper part of the rear bracket 3 is rotatably connected to the push rod 1 , and the lower part of the push rod 1 is arranged on the front bracket 2 in a relatively sliding manner along the length extension direction of the front bracket 2 . Here, the lower part of the push rod 1 is fixedly provided with a sliding piece, which can be the sliding sleeve 5 in this embodiment, and the sliding sleeve 5 is sleeved on the front bracket 2 along the length extension direction of the front bracket 2 so as to be slidable.

The seat post assembly is arranged between the front support 2 and the rear support 3, and the seat post assembly can be set as a seat post 4 whose length extends along the front-to-back direction according to the present embodiment, and the rear part of the seat post 4 is rotatably connected to On the rear support 3, the front portion of the seat bar 4 is rotatably connected to the top of the front support 2 by a turning shaft 9, and the turning shaft 9 is positioned above the sliding sleeve 5 on the front support 2.

The seatpost assembly can also be configured as the following structure: the seatpost assembly includes a first rod and a second rod (not shown) that are rotatably connected at one end, and the other end of the first rod is pivotally connected to the front bracket 2, the other end of the second rod is pivotally connected to the rear bracket 3, so that the seatpost assembly itself can also pass through the connection between the first rod and the second rod when the stroller frame is folded in the front-rear direction. Rotate and fold each other.

The locking mechanism can be arranged between the sliding sleeve 5 and the front bracket 2 to lock the sliding sleeve 5 and the front bracket 2. The locking mechanism can adopt a common structure in which the lock hole and the lock pin are matched, that is, in the front A lock pin is arranged on the support 2, and a lock hole is opened on the sliding sleeve 5, and the lock pin can correspondingly pass through the lock hole to lock or disengage from the lock hole to unlock. In this embodiment, an unlocking handle (not shown) for unlocking the above-mentioned locking mechanism is provided between the seat bars 4 on both sides, and the unlocking handle and the lock pin are connected by a traction cable, so that This enables the user to drive the lock pin out of the lock hole through the traction cable when pulling the unlocking handle to realize the unlocking of the locking mechanism.

Certainly, in the above-mentioned structure, the sliding sleeve 5 can also be fixedly arranged on the upper part of the front bracket 2, and the sliding sleeve is sleeved on the push rod 1 in a sliding manner along the length extension direction of the push rod 1. Correspondingly, the locking mechanism is arranged on The sliding sleeve and the push rod 1 are used to lock the sliding sleeve 5 and the push rod 1, so that the same technical effect of this embodiment can also be achieved.

Referring to the accompanying drawings, the cart frame also includes a strut assembly connected between the side supports on both sides and can be folded and unfolded along the left and right directions of the cart frame. The strut assembly includes a bottom brace assembly 6 and Rear strut assembly 7. Wherein the bottom brace assembly 6 includes bottom braces 61 that intersect each other and are rotatably connected at the intersections, and each bottom brace 61 is arranged in the following manner: the rear portion of the bottom brace 61 is rotatably connected to the bottom of the rear bracket 3, The front part of the bottom stay 61 is rotatably connected to the front part of the seat post 4 by means of a connecting piece 10 which is located in front of the rotational axis 9 on the seat post 4 . The rear strut assembly 7 can be folded along the left and right directions of the cart frame and is arranged between the rear brackets 3 on both sides. Referring to the drawings, the rear strut assembly 7 is a common structure in the field. I won't repeat them here.

Referring to the accompanying drawings, the cart frame also includes a footboard 8 arranged between the bottoms of the front brackets 2 on both sides. between the front brackets 2.

When the cart frame is unfolded, as shown in Fig. 1 and Fig. 2, the sliding sleeve 5 at the lower part of the push rod 1 slides to the upper part of the front bracket 2, and the locking mechanism locks, and the front bracket 2 and the push rod 2 are fixed along the same line. Extending in the length direction, the seat bar 4 is supported between the front bracket 2 and the rear bracket 3 , and a stable triangular structure is formed between the seat bar 4 , the push rod 1 and the rear bracket 3 . The bottom brace assembly 6 is supported between the seat bars 4 and the rear brackets 3 on both sides along the left-right and front-to-rear directions, and the rear brace assembly 7 is supported between the rear brackets 3 on both sides in an unfolded manner.

When the stroller frame needs to be folded, lift the unlocking handle, as shown in Figure 3 and Figure 4, the locking mechanism is unlocked, the front part of the seat bar 4 is lifted and moves upward, driving the upper part of the front bracket 2 to move upward , the front bracket 2 slides upward relative to the push rod 1, that is, the sliding sleeve 5 gradually slides under the forward bracket 2; at the same time, the seat post 4 rotates relative to the front bracket 2, driving the rear bracket 3 to gradually move closer to the front bracket 2; the bottom support rod 61 The front part moves upwards to drive the two bottom struts 61 to rotate with each other and draw in the left and right directions, and the rear support rod assemblies 7 are synchronously drawn in the left and right directions. Finally, the state shown in Figure 5 and Figure 6 is formed, the push rod 1, the front bracket 2, the rear bracket 3, the seat post 4, the bottom brace assembly 6 and the rear brace assembly 7 are all close to each other, and the folded structure It is compact and can stand on the ground by relying on the front wheels 20 and the rear wheels 30 .

When the cart frame needs to be launched, the push rod 1 is pulled upwards, the sliding sleeve 5 slides upwards gradually along the front bracket 2, the rear bracket 3 rotates relative to the push rod 1, and the rear bracket 3 and the front bracket are driven by the seat bar 4. 2 are gradually expanded along the front-to-back direction, and the front portion of the seat post 4 gradually moves downward, driving the front portion of the bottom brace assembly 6 to move downward, so that the bottom brace assembly 6 is gradually expanded along the left-right direction, and the rear brace assembly 7 also gradually unfolds along the left and right directions, and finally when the sliding sleeve 5 slides to the locking position on the top of the front bracket 2, the locking mechanism locks, and the cart frame is stably in the unfolded state shown in Fig. 1 and Fig. 2 .

In summary, the children's stroller of the present invention has a simple structure, a small number of rods, and convenient folding and unfolding operations. When folded, the stroller frame can be folded in the left, right and front and rear directions, and the folded structure is compact and takes up little space. , and can stand on the ground, 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 (10)

1. A child stroller comprising a stroller frame having an unfolded state and a folded state, a wheel assembly disposed at the bottom of the stroller frame, a locking mechanism for locking the stroller frame in the unfolded state The mechanism is characterized in that: the trolley frame includes a push rod, a front bracket, and a rear bracket whose upper part is rotatably connected to the push rod, and the lower part of the push rod slides relatively along the length extension direction of the front bracket ground on the front frame, the stroller frame also includes a seat post assembly arranged between the front frame and the rear frame, the front part of the seat post assembly is rotatably connected to the front The upper part of the bracket, the rear part of the seat post assembly is rotatably connected to the rear bracket, when the cart frame is in the unfolded state, the push rod, the seat post assembly and the rear bracket A triangular structure is formed between them; when the cart frame is in a folded state, the push rod, the front bracket, the rear bracket and the seat post assembly are close to each other. 2. The children's stroller according to claim 1, characterized in that: the lower part of the push rod is fixedly provided with a sliding piece, and the sliding piece is provided on the front side to slide along the length extension direction of the front bracket. on the stand. 3. The children's stroller according to claim 2, characterized in that: the front part of the seatpost assembly is rotatably connected to the front bracket through a rotating shaft, and the sliding member is located on the front bracket on the front bracket. below the axis of rotation. 4. The stroller according to claim 2, wherein the locking mechanism is arranged between the sliding member and the front frame for locking the sliding member on the front frame. 5 . The stroller for children according to claim 4 , wherein the stroller frame further comprises an unlocking handle provided at the front of the seatpost assembly for unlocking the locking mechanism. 6 . 6. The children's stroller according to claim 1, characterized in that: the upper part of the front bracket is fixedly provided with a slider, and the slider is provided on the push rod along the length extension direction of the push rod. on the pole. 7. The stroller according to claim 1, wherein the seat post assembly comprises a seat post whose length extends in the front-to-rear direction, and the two ends of the seat post are pivotally connected to the front seat post respectively. on the bracket and on the rear bracket. 8. The stroller according to claim 1, wherein the seatpost assembly comprises a first rod and a second rod that are rotatably connected at one end, and the other end of the first rod is rotatably connected to the On the front bracket, the other end of the second rod is rotatably connected to the rear bracket. 9. The children's stroller according to claim 1, wherein the stroller frame includes side brackets on both sides, a strut assembly connected between the side brackets on both sides, each side The side brackets each include the front bracket, the rear bracket, the push rod and the seatpost assembly, and the brace assembly includes a bottom brace assembly that can be retracted along the left and right directions of the cart frame. The rear brace assembly is folded between the rear brackets on both sides. The bottom brace assembly includes bottom braces that intersect each other and are rotatably connected at the intersections. The rear parts of the bottom braces are rotatably Connected to the bottom of the rear bracket on one side, the front portion of the bottom brace is rotatably connected to the front portion of the seat post assembly on the other side. 10. The children's stroller according to claim 9, wherein the front portion of the bottom stay is rotatably connected to the seatpost assembly by a connecting piece, and the connecting piece is on the seatpost assembly Located forward of an axis of rotation between the seat post assembly and the front bracket.