CN106515834A - Baby carriage - Google Patents

Abstract

The invention discloses a stroller for children, which comprises a stroller frame with an expanded state and a folded state, a front wheel assembly and a rear wheel assembly installed at the bottom of the stroller frame, and the stroller frame includes a front bracket, an upper part and a The rear bracket that is rotatably connected to the front bracket, the slider that can be slidably arranged on the front bracket along the length extension direction of the front bracket, the connecting rod that is rotatably connected to the slider at one end, and the other end of the connecting rod is connected to the rear bracket. Rotational connection; when the stroller is folded, the slider slides upwards on the front bracket along the length extension direction of the front bracket, and the lower part of the rear bracket is driven to turn backwards and close to the front bracket through the connecting rod, so that the front wheel assembly and the rear wheel assembly Gradually move away until the front bracket, rear bracket and linkage are close together. The baby stroller has a simple structure and convenient folding operation, and the folded baby stroller has a compact structure and a small volume, and is easy to carry and store.

Description

stroller

technical field

The invention relates to the technical field of children's products, in particular to a baby stroller.

Background technique

The children's stroller in the prior art includes a stroller frame with an unfolded position and a folded position, a front wheel assembly and a rear wheel assembly arranged at the bottom of the stroller frame, and is used to lock the stroller frame in the unfolded state down locking mechanism. There are many types of existing children's strollers, the number of rods of the stroller frame is different, and the connection positions between the rods are different, so the folding principles and folding methods are different, and the folding effects are also different.

Contents of the invention

The object of the present invention is to provide a child stroller which is easy to fold and has a small volume after folding to address the shortcomings of the prior art.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A stroller for children, comprising a stroller frame with unfolded state and folded state, a front wheel assembly arranged at the bottom front part of the pushcart frame, a rear wheel assembly arranged at the bottom rear part of the pushcart frame a wheel assembly, a locking mechanism for locking said stroller frame in an unfolded state, said stroller frame comprising:

The front bracket is used to install the front wheel assembly, and the front bracket is arranged inclined upward from front to back;

The rear bracket is used to install the rear wheel assembly, the rear bracket is arranged inclined downward from the front to the rear, and the upper part of the rear bracket is rotatably connected to the front bracket;

a sliding piece, the sliding piece is slidably arranged on the front support along the length extension direction of the front support;

A connecting rod, one end of the connecting rod is rotatably connected to the slider, and the other end of the connecting rod is rotatably connected to the rear bracket;

When the stroller is folded, the slider slides upwards on the front bracket along the length extension direction of the front bracket, and the lower part of the rear bracket is driven to turn backwards to align with the front bracket through the connecting rod. The brackets move closer together so that the front wheel assembly and the rear wheel assembly gradually move away until the front bracket, the rear bracket and the connecting rod move closer together.

Preferably, when the stroller is in the unfolded state, on the front bracket, the sliding member is located above the rotational connection point between the front bracket and the rear bracket.

Preferably, when the stroller is folded, the sliding member slides upward along the length extension direction of the front support.

Preferably, when the baby stroller is in an unfolded state, a triangular structure is formed among the front support, the rear support, the connecting rod and the sliding member.

Preferably, the front bracket includes a front support rod and a push rod extending along the same length direction, the upper part of the front support rod is fixedly connected with the lower part of the push rod or integrally arranged, and the front wheel assembly is installed on the The lower part of the front pole, the sliding member is slidably arranged on the push rod along the length extension direction of the push rod.

Preferably, the cart frame includes side brackets located on the left and right sides of the cart frame and a cross brace assembly connected between the side brackets on the left and right sides, and the side brackets on each side Each includes the front bracket, the rear bracket, the sliding member and the connecting rod, and the cross brace assembly can be folded and unfolded along the left and right directions of the stroller.

Further, the cross brace assembly includes a bottom cross brace assembly, and the bottom cross brace assembly includes two bottom braces that intersect each other and are rotatably connected at the intersection, and one end of each bottom brace is rotatably connected to the On one side of the front bracket, the other end is rotatably connected to the other side of the rear bracket.

Further, the cross brace assembly also includes a rear support assembly, the rear support assembly is arranged between the rear brackets on both sides, and the rear support assembly includes:

vertical pole;

A first cross bar, one end of the first cross bar is rotatably connected to the upper end of the vertical bar, and the other end of the first cross bar is rotatably connected to the rear bracket on one side;

A second cross bar, one end of the second cross bar is rotatably connected to the upper end of the vertical bar, and the other end of the second cross bar is rotatably connected to the rear bracket on the other side;

A third cross bar, one end of the third cross bar is rotatably connected to the lower end of the vertical bar, and the other end of the third cross bar is rotatably connected to the rear bracket on one side;

A fourth cross bar, one end of the fourth cross bar is rotatably connected to the lower end of the vertical bar, and the other end of the fourth cross bar is rotatably connected to the rear bracket on the other side;

a slider, the slider being slidably arranged on the vertical rod along the length extension direction of the vertical rod;

a first slanting rod, one end of the first slanting rod is rotatably connected to the slider, and the other end of the first slanting rod is rotatably connected to the third cross bar;

As for the second slanting rod, one end of the second slanting rod is rotatably connected to the slider, and the other end of the second slanting rod is rotatably connected to the fourth cross bar.

Preferably, the stroller further includes an unlocking belt for driving the locking mechanism to be unlocked, the unlocking belt extends along the left and right directions, and the left and right ends of the unlocking belt are respectively arranged on the left and right sides. on the slider.

Preferably, the baby stroller further includes a seat pocket arranged on the stroller frame, the seat pocket is formed by a cloth cover, and the two ends of the cloth cover are respectively fixed on the front part and the rear support bracket. the upper part of the front bracket.

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 is simple in structure, and the folding operation is convenient. The rotation is close to the front bracket, and the folded baby stroller has a compact structure and a small volume, and is 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 side view of the stroller of the present invention in the folded state;

Fig. 5 is a perspective view of the rear support assembly of the present invention in a deployed state.

Among them: 1. Side bracket; 11. Front bracket; 111. Front support rod; 112. Push rod; 12. Rear bracket; 13. Slider; 14. Connecting rod; 211, bottom support rod; 22, rear attached support assembly; 221, vertical bar; 222, first cross bar; 223, second cross bar; 224, third cross bar; 225, fourth cross bar; 226, slider ; 227, the first oblique rod; 228, the second oblique rod; A, the first shaft; B, the second shaft;

detailed description

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

As shown in Figures 1 to 4, the children's stroller of the present invention includes a stroller frame in unfolded and folded states, a front wheel assembly 4 arranged at the bottom front of the stroller frame, The rear wheel assembly 5 at the bottom rear part is used to lock the cart frame in the locking mechanism in the unfolded state.

The stroller frame includes side brackets 1 respectively located on the left and right sides of the stroller frame, and a cross brace assembly connected between the side brackets 1 on the left and right sides.

The side bracket 1 on each side includes a front bracket 11 , a rear bracket 12 , a slider 13 and a link 14 . Front support 11 is used for installing front wheel assembly 4, and rear support 12 is used for installing rear wheel assembly 5, and front support 11 is arranged obliquely upwards from front to back, and rear support 12 is provided with an inclination downwards from front to rear, and the top of rear support 12 is connected with front The bracket 11 is rotatably connected, and the slider 13 can be slidably arranged on the front bracket 11 along the length extension direction of the front bracket 11. On the front bracket 11, the rotational connection point between the front bracket 11 and the rear bracket 12 is located below the slider 14 One end of the connecting rod 14 is rotatably connected with the slider 13, and the other end is rotatably connected with the rear bracket 12, so that a crank slider is formed between the front bracket 11, the rear bracket 12, the slider 13 and the connecting rod 14. block mechanism.

A specific embodiment, the front bracket 11 includes a front support rod 111 and a push rod 112, the front support rod 111 and the push rod 112 extend along the same length direction, and the upper part of the front support rod 111 is fixedly connected with the lower part of the push rod 112 Or integrally arranged, the upper part of the front strut 111 is rotatably connected with the upper part of the rear support 12, the front wheel assembly 4 is installed on the lower part of the front strut 111, and the slider 13 can be slidably arranged on the push rod 112 along the length extension direction of the push rod 112. on rod 112.

The side bracket 1 on each side also includes a handle 15 , one end of the handle 15 is fixedly connected to the upper end of the push rod 112 , and the handle 15 intersects with the push rod 112 to form an L-shaped structure.

The cross brace assembly can be folded and unfolded along the left and right directions of the stroller, so that the stroller can be folded horizontally. The cross brace assembly includes a bottom cross brace assembly 21 and a rear attachment brace assembly 22 .

The bottom cross brace assembly 21 includes two bottom braces 211 that cross each other and are rotatably connected at the intersections. One end of each bottom brace 211 is rotatably connected to the front bracket 11 on one side, and the other end is rotatably connected to the other side. On the rear bracket 12 on one side.

The rear support assembly 22 is arranged between the rear brackets 12 on the left and right sides. Specifically, as shown in FIG. The cross bar 224 , the fourth cross bar 225 , the slider 226 , the first slanting bar 227 and the second slanting bar 228 . When the stroller is in the unfolded state, the vertical bar 221 is located in the middle of the rear brackets 12 on both sides, and is parallel to the rear brackets 12 on both sides respectively. The first cross bar 222, the third cross bar 224 and the first oblique bar 227 is located on one side of the vertical bar 221, the second cross bar 223, the fourth cross bar 225 and the second oblique bar 228 are located on the other side of the vertical bar 221, the first cross bar 222, the second cross bar 223, the third cross bar Both the rod 224 and the fourth crossbar 225 are in a horizontal state. One end of the first cross bar 222 is rotatably connected to the upper end of the vertical bar 221 , and the other end is rotatably connected to the rear bracket 12 on one side; one end of the second cross bar 223 is rotatably connected to the upper end of the vertical bar 221 connection, the other end is rotatably connected to the rear bracket 12 on the other side; in this embodiment, one end of the first cross bar 222, one end of the second cross bar 223, and the upper end of the vertical bar 221 pass through three parts The first axis A is rotatably connected with the same axis; one end of the third cross bar 224 is rotatably connected with the lower end of the vertical bar 221, and the other end is rotatably connected to the rear bracket 12 on one side; one end of the fourth cross bar 225 It is rotatably connected to the lower end of the vertical bar 221, and the other end is rotatably connected to the rear bracket 12 on the other side; The three parts at the lower end of the rod 221 are connected by the second shaft B to rotate on the same axis; the slider 226 can be slidably arranged on the vertical rod 221 along the length extension direction of the vertical rod 221; 226 is rotatably connected, the other end is rotatably connected to the third cross bar 224; On the vertical bar 221 , a slider 226 is located between the first axis A and the second axis B. As shown in FIG.

When the slider 226 slides upwards to the upper end of the vertical bar 221 along the length extension direction of the vertical bar 221, the first horizontal bar 222 and the second horizontal bar 223 are deployed in the horizontal direction, and the first horizontal bar 222 and the second horizontal bar 223 extends along the same straight line direction, the third cross bar 224 and the fourth cross bar 225 also extend along the horizontal direction, and the third cross bar 224 and the fourth cross bar 225 also extend along the same straight line direction, at this time, the first cross bar 222 and the second cross bar 223 form a block to the slider 226, so that the slider 226 cannot continue to slide upwards, a triangle is formed between the third cross bar 224, the vertical bar 221 and the first oblique bar 227, and the fourth cross bar 225. Another triangle is formed between the vertical bar 221 and the second slanting bar 228, and the rear support assembly 22 is in an open state; When the vertical bars 221 move closer together, the third horizontal bar 224 and the fourth horizontal bar 225 respectively rotate around the second axis B and move closer to the vertical bar 221, the slider 226 slides downward along the length extension direction of the vertical bar 221, and the first inclined bar 227. When the second oblique bar 228 rotates accordingly, and then gradually moves closer to the third horizontal bar 224, the fourth horizontal bar 225 and the vertical bar 221, the rear support assembly 22 is gradually folded. At this moment, the third horizontal bar 224 and the vertical bar 221 The fourth cross bar 225 blocks the slider 226 so that the slider 226 cannot continue to slide downward.

The locking mechanism includes a first locking mechanism for locking the side bracket 1 on each side in the unfolded state and a second locking mechanism for locking the rear support assembly 22 in the unfolded state. The first locking mechanism can be arranged at the front Between the two parts arbitrarily connected in the slider crank mechanism formed by the bracket 11, the rear bracket 12, the slider 13 and the connecting rod 14, in this embodiment, the first locking mechanism is arranged between the slider 13 and the front bracket 11 between. The second locking mechanism is disposed between the slider 226 and the vertical bar 221 . The specific structures of the first locking mechanism and the second locking mechanism are not technical points to be protected by this patent, and structures in the prior art can be used.

The stroller also includes an unlocking strap 3, which extends along the left and right directions, and its two ends are respectively arranged on the sliders 13 on the left and right sides. By pulling the unlocking strap 3 upwards, the first locking The mechanism is unlocked, and at the same time, the sliding member 13 is slid upwards along the length extension direction of the front bracket 11, thereby causing the stroller frame to fold.

The stroller also includes a seat pocket 6 arranged on the stroller frame, the seat pocket 6 is formed by a cloth cover, and the two ends of the cloth cover are respectively fixed on the front part of the rear support 12 and the top of the front support 11.

When the stroller is in the unfolded state, as shown in Figures 1 and 2, the first locking mechanism and the second locking mechanism are in the locked state, and the bottom cross brace assembly 21 and the rear support assembly 22 are in the unfolded state, so that The side brackets 1 on both sides are mutually expanded along the transverse direction, and the side brackets 1 on each side are also in the unfolded state. The triangular structure makes the stroller have better rigidity and can be stably in the unfolded state.

When the stroller needs to be folded, first unlock the first locking mechanism and the second locking mechanism, and when the first locking mechanism is unlocked, pull the unlocking strap 3 upwards, the first locking mechanism is unlocked, and at the same time unlock the pulling strap 3 and pull to slide The piece 13 slides upwards along the length extension direction of the front bracket 11, and the rear bracket 12 is pulled by the connecting rod 14 to turn counterclockwise around the rotation connection point with the front bracket 11 and close to the front bracket 11, so that the front wheel assembly 4 and the rear wheel assembly 5 gradually As shown in Figure 3, until the front bracket 11, the rear bracket 12 and the connecting rod 14 are close together; after the second locking mechanism is unlocked, the rear support assembly 22 is gradually gathered in the left and right direction, driving the bottom cross support assembly 21 along the Fold in the left and right directions, so that the side supports 1 on both sides gradually move closer together in the left and right directions, and finally fold to form the state shown in FIG. 4 . The folded baby stroller has a compact structure and a small volume, and is easy to carry and store.

When the stroller is unfolded from the folded state, press and hold the handle 15, kick the rear wheel assembly 5 to make the rear bracket 12 rotate clockwise relative to the front bracket 11, and drive the slider 13 along the front bracket 11 through the connecting rod 14. Slide downward in the direction of length extension until the slider 13 is locked on the front bracket 11 by the first locking mechanism again, and the side bracket 1 is just unfolded. Gradually unfold along the left and right directions until the rear support assembly 22 is fully unfolded, the second locking mechanism is locked, the side brackets 1 on both sides are relatively fixed, and the cart frame is in a stable unfolded state again.

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 kind of children trolley, including the stroller frame with deployed condition and folded state, located at the bottom of the stroller frame Anterior front component, the wheel assembly located at the bottom rear portion of the stroller frame, for the stroller frame is locked in exhibition Locking mechanism under open state, it is characterised in that：The stroller frame includes：

Fore-stock, for installing the front component, the fore-stock is inclined upwardly setting from front to back；

After-poppet, for installing the wheel assembly, the after-poppet downward-sloping setting from front to back, the after-poppet it is upper Portion is rotated with the fore-stock and is connected；

Sliding part, the sliding part can be slidably arranged on the fore-stock along the length bearing of trend of the fore-stock；

Connecting rod, the one end of the connecting rod are rotated with the sliding part and are connected, and the other end of the connecting rod is propped up afterwards with described Frame rotates connection；

When the children trolley is folded, make the sliding part on the fore-stock along the fore-stock length bearing of trend to Upper slip, the bottom for ordering about the after-poppet by the connecting rod are turned over and are drawn close with the fore-stock, make the front wheels Part and the wheel assembly are gradually distance from, until the fore-stock, the after-poppet and the connecting rod are close together.

2. children trolley according to claim 1, it is characterised in that：When the children trolley is in deployed condition, On the fore-stock, the sliding part is located at the top of the fore-stock and the rotation junction point of the after-poppet.

3. children trolley according to claim 1, it is characterised in that：When the children trolley is folded, the sliding part Along the length bearing of trend upward sliding of the fore-stock.

4. children trolley according to claim 1, it is characterised in that：When the children trolley is in deployed condition, institute State triangular structure is formed between fore-stock, the after-poppet, the connecting rod and the sliding part.

5. children trolley according to claim 1, it is characterised in that：The fore-stock includes extending along same length direction Front support rod and push rod, the top of the front support rod is fixedly connected or is wholely set with the bottom of the push rod, the front wheels Part is arranged on the bottom of the front support rod, and the sliding part can be slidably arranged in institute along the length bearing of trend of the push rod State on push rod.

6. the children trolley according to any one of claim 1 ~ 5, it is characterised in that：The stroller frame includes position respectively In the left and right sides of the stroller frame side stand and be connected to the left and right sides the side stand between stull component, often The side stand of side includes the fore-stock, the after-poppet, the sliding part and the connecting rod, the stull component energy Enough left and right directions along the children trolley draw in and launch.

7. children trolley according to claim 6, it is characterised in that：The stull component includes bottom cross support component, institute Stating bottom cross support component includes intersecting and rotate in infall two foundation struts of connection, per one of bottom supporting rod described in root End is rotationally connected on the fore-stock of side, and the other end is rotationally connected on the after-poppet of opposite side.

8. children trolley according to claim 6, it is characterised in that：The stull component also includes rear attached support component, institute After stating, between the after-poppet of both sides, the rear attached support component includes attached support component：

Montant；

First cross bar, the one end of first cross bar are rotated with the upper end of the montant and are connected, first cross bar The other end is rotationally connected on the after-poppet of side；

Second cross bar, the one end of second cross bar are rotated with the upper end of the montant and are connected, second cross bar The other end is rotationally connected on the after-poppet of opposite side；

3rd cross bar, the one end of the 3rd cross bar are rotated with the bottom of the montant and are connected, the 3rd cross bar The other end is rotationally connected on the after-poppet of side；

4th cross bar, one end of the 4th cross bar are rotated with the bottom of the montant and are connected, the 4th cross bar it is another One end is rotationally connected on the after-poppet of opposite side；

Slide block, the slide block can be slidably arranged on the montant along the length bearing of trend of the montant；

First brace, the one end of first brace are rotationally connected on the slide block, the other end of first brace Portion is rotationally connected on the 3rd cross bar；

Second brace, the one end of second brace are rotationally connected on the slide block, the other end of second brace Portion is rotationally connected on the 4th cross bar.

9. children trolley according to claim 1, it is characterised in that：The children trolley is also included for ordering about the lock Determine the unblock drawstring of mechanism's unblock, the unblock drawstring extends in left-right direction, the left and right both ends difference of the unblock drawstring It is arranged on the sliding part of the left and right sides.

10. children trolley according to claim 1, it is characterised in that：The children trolley also includes being arranged on described pushing away Seat pocket on vehicle carriage, the seat pocket are covered by cloth and are formed, and the both ends of the cloth set are separately fixed at the front portion of the after-poppet With the top of the fore-stock.