CN203996361U - Children trolley - Google Patents

Abstract

The utility model discloses a stroller for children, 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 relatively slidably arranged along the length extension direction of the front bracket. On the front bracket, the stroller 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, and the rear part of the seatpost assembly is rotatably connected On the rear frame, when the stroller frame is unfolded, a triangular structure is formed between the push rod, seat post assembly and rear frame; when the stroller frame is folded, the push rod, front frame, rear frame and 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

technical field

The utility model 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.

Contents of the invention

The purpose of the utility model is to provide a child stroller with simple structure and convenient folding and unfolding operations.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a children's stroller, including a stroller frame in an unfolded state and a folded state, a wheel assembly arranged at the bottom of the stroller frame, and used to move the stroller A locking mechanism for locking the cart frame 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, and the lower part of the push rod is along the The length extension direction of the front 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 of the seatpost assembly The part is rotatably connected to the upper part of the front bracket, and 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 seat A triangular structure is formed between the rod assembly and the rear bracket; when the cart frame is in a folded state, the push rod, the front bracket, the rear bracket and the seatpost 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 utility model has the following advantages compared with the prior art: the children's stroller of the utility model has a simple structure, a small number of rods, and the folding and unfolding operations are very convenient. The frame can be folded along the left and right and front and rear directions, and the folded structure is compact, takes up little space, and can stand on the ground by itself, making it easy to carry and store.

Description of drawings

Accompanying drawing 1 is the three-dimensional view that the children's stroller of the present invention is in the unfolded state;

Accompanying drawing 2 is the side view of the children's stroller of the present utility model 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 utility model in a half-folded state;

Accompanying drawing 5 is the side view of the children's stroller of the present utility model in a folded state;

Accompanying drawing 6 is the rear view of the children's stroller in the folded state of the utility model;

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.

Detailed ways

The technical solution of the present utility model will be further elaborated 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 portion of the bottom stay 61 is rotationally connected to the front portion 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 utility model 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. The folded structure is compact and takes up a lot of space. Small, 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 utility model, and its purpose is to enable those familiar with this technology to understand the content of the present utility model and implement it accordingly, and not to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall fall within the protection scope of the utility model.

Claims (10)

1. a children trolley, comprise the go-cart vehicle frame with deployed condition and folded state, be located at the wheel assembly of described go-cart bottom of frame, for described go-cart vehicle frame is locked in to the lockout mechanism under deployed condition, it is characterized in that: described go-cart vehicle frame comprises push rod, front frame, top is connected to the after poppet on described push rod rotationally, the bottom of described push rod along the length bearing of trend relative sliding of described front frame be located on described front frame, described go-cart vehicle frame also comprises the seat bar assembly of being located between described front frame and described after poppet, the front portion of described seat bar assembly is connected to the top of described front frame rotationally, be connected on described after poppet to the posterior rotation of described seat bar assembly, when described go-cart vehicle frame is during in deployed condition, described push rod, between described seat bar assembly and described after poppet, form triangular structure, when described go-cart vehicle frame is during in folded state, described push rod, described front frame, described after poppet and described seat bar assembly are drawn close mutually.

2. children trolley according to claim 1, is characterized in that: the bottom of described push rod is fixedly provided with sliding part, and described sliding part is located on described front frame slidably along the length bearing of trend of described front frame.

3. children trolley according to claim 2, is characterized in that: the front portion of described seat bar assembly is connected on described front frame rotationally by turning cylinder, described sliding part on described front frame, be positioned at described turning cylinder below.

4. children trolley according to claim 2, is characterized in that: described lockout mechanism is located between described sliding part and described front frame for described sliding part is locked in to described front frame.

5. children trolley according to claim 4, is characterized in that: described go-cart vehicle frame also comprises is located at described seat bar assembly front portion for the release carry hand to described lockout mechanism release.

6. children trolley according to claim 1, is characterized in that: the top of described front frame is fixedly provided with sliding part, and described sliding part is located on described push rod slidably along the length bearing of trend of described push rod.

7. children trolley according to claim 1, is characterized in that: described seat bar assembly comprises the seat post that length is extended along fore-and-aft direction, the two ends of described seat post respectively by pivotally be connected on described front frame with described after poppet on.

8. children trolley according to claim 1, it is characterized in that: described seat bar assembly comprises one end rotate the first bar and the second bar that connect, the other end of described the first bar is connected on described front frame rotationally, and the other end of described the second bar is connected on described after poppet rotationally.

9. children trolley according to claim 1, it is characterized in that: described go-cart vehicle frame comprises the side stand that is positioned at both sides, be connected to the strut assembly between the described side stand of both sides, the described side stand of every side includes described front frame, described after poppet, described push rod and described seat bar assembly, described strut assembly comprises bottom supporting rod assembly, can along the left and right directions folding of described go-cart vehicle frame be located at the rear pole assembly between the described after poppet of both sides, described bottom supporting rod assembly comprise mutual intersection and infall rotate connect bottom supporting rod, be connected to the posterior rotation of described bottom supporting rod the bottom of after poppet described in a side, the front portion of described bottom supporting rod is connected on the front portion of seat bar assembly described in opposite side rotationally.

10. children trolley according to claim 9, it is characterized in that: the front portion of described bottom supporting rod is connected on described seat bar assembly rotationally by attaching parts the front of described attaching parts turning cylinder between described seat bar assembly and described front frame on described seat bar assembly.