CN101462550B - stroller - Google Patents

Abstract

The invention relates to a stroller for children, which comprises a stroller frame provided with an unfolding position and a folding position, front wheel components, back wheel components and a locking mechanism used for locking the stroller frame at the unfolding position, wherein the stroller frame comprises a base frame and a front wheel frame which is rotatably connected with the front end part of the base frame through a first rotating shaft; the front wheel components are arranged on the lower part of a front wheel frame; and the back wheel components are arranged on the back part of the base frame. In the process of converting the stroller frame from the unfolding position to the folding position, the front wheel frame and the base frame are folded and closed, so that the front wheel frame drives the front wheel components to turn together and move the positions so as to achieve the effect of reducing the volume of the stroller frame after being folded.

Description

baby stroller

technical field

The invention relates to a stroller for children. the

Background technique

A stroller for children, comprising a stroller frame with an unfolded position and a folded position, a front wheel assembly, a rear wheel assembly, and a locking mechanism for locking the stroller frame in the unfolded position, the stroller The vehicle frame includes an underframe, the front wheel assembly is arranged on the front portion of the underframe, and the rear wheel assembly is arranged on the rear portion of the underframe. When the cart frame is folded, the front wheel assembly and the rear wheel assembly It is irrelevant to the folding of the stroller frame, that is, the positions of the front wheel assembly and the rear wheel assembly relative to the bottom frame are fixed, thus resulting in a large volume of the folded stroller frame. the

Contents of the invention

The technical problem to be solved by the present invention is to provide a baby stroller with a small volume after being folded. the

In order to solve the above technical problems, the present invention adopts the following technical solutions: a children's stroller, including a stroller frame with an unfolded position and a folded position, a front wheel assembly, a rear wheel assembly, and a a locking mechanism locked in the unfolded position, the cart frame includes an underframe,

The trolley frame also includes a front wheel frame that is rotatably connected to the front end of the underframe through a first rotating shaft, and the front wheel assembly is arranged at the lower part of the front wheel frame. The rear wheel assembly is arranged at the rear of the chassis;

The cart frame also includes a front bracket, the front bracket intersects with the upper part of the front wheel frame and is rotatably connected at the intersection through the third rotating shaft;

The underframe is an arc-shaped rod member arched downward, the front wheel assembly is rotatably arranged on the front wheel frame, and the front wheel assembly and the front wheel A front wheel locking mechanism is provided between the frames, the rear wheel assembly is rotatably arranged on the bottom frame, and a rear wheel locking mechanism is provided between the rear wheel assembly and the bottom frame, The baby stroller has a pushing state and a swinging state. When the baby stroller is in the pushing state, the front wheels of the front wheel assembly and the rear wheels of the rear wheel assembly respectively support the When the baby stroller is in a rocking state, the front wheels and the rear wheels are respectively located above the underframe, and the underframe can be shaken when it touches the ground. The arc-shaped underframe adds a shakeable function to the present invention. the

The cart frame also includes a rear wheel frame whose lower part is rotatably connected with the rear part of the underframe through the second rotating shaft, a side armrest, and is rotatably connected with the rear part of the side armrest through the seventh rotating shaft. the push handle rod, the rear connecting rod and the seat post that are rotatably connected to the rear wheel frame at one end through the ninth rotating shaft,

One of the three parts of the front part of the side armrest, the upper end of the front bracket and the upper end of the rear wheel frame is connected to the other two parts in a rotational manner, and the push lever One of the three parts, the lower part of the seat post, the rear end of the seat post and the other end of the rear link, is connected to the other two parts in a rotational manner, and the front end of the seat post is connected to the The upper part of the front bracket or the front wheel frame is rotatably connected. The cart frame is composed of a link mechanism, and the locking mechanism can lock any two rods so as to lock the entire cart frame. the

The front end of the seat post is rotationally connected to the upper end of the front wheel frame through a fourth rotating shaft. the

The fourth rotating shaft is located above the third rotating shaft. the

The upper end of the front bracket is rotatably connected to the front of the side armrest through the fifth rotating shaft, and the upper end of the rear wheel frame is rotatably connected to the side armrest through the sixth rotating shaft. the

The lower part of the push handle rod, the rear end of the seat post and the other end of the rear connecting rod are connected coaxially through the eighth rotating shaft. the

The part of the front bracket extending downward from the third rotating shaft is the lower section of the front bracket. When the cart frame is in the unfolded position, the lower section of the front bracket blocks the front wheel side of the shelf. the

The front wheel frame includes a front wheel link extending in the front-to-back direction, and the front wheel assembly includes a front wheel joint, a front wheel arranged at one end of the front wheel joint, and the front wheel joint The other end is rotatably sleeved on the front wheel link, and the rear end of the front wheel link is rotatably connected to the front end of the chassis. the

Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art: when the cart frame is converted from the unfolded position to the folded position, the front wheel frame and the bottom frame are folded closer, Therefore, the front wheel frame drives the front wheel assembly to turn over together, that is, the front wheel assembly moves relative to the front wheel frame, thereby achieving the effect of reducing the folded volume of the stroller frame. the

Description of drawings

Accompanying drawing 1 is the expanded front view of the utility model;

Accompanying drawing 2 is a half-folded front view of the utility model;

Accompanying drawing 3 is the folding front view of the utility model;

Accompanying drawing 4 is the unfolded front view of the utility model (a front support is omitted, thereby can see front wheel frame);

Accompanying drawing 5 is the expanded perspective view of the utility model. the

Among them: 1. Cart frame; 2. Front wheel assembly; 3. Rear wheel assembly; 4. Side armrest; 5. Front bracket; 6. Rear wheel frame; 7. Push handle bar; 8. Seat post; 9. Underframe; 10. Front wheel frame; 11. Rear connecting rod;

21. The first shaft; 23. The third shaft; 24. The fourth shaft; 25. The fifth shaft; 26. The sixth shaft; 27. The seventh shaft; 28. The eighth shaft; 29. The ninth shaft;

Detailed ways

As shown in accompanying drawing 1-accompanying drawing 5, the present invention is described in further detail below in conjunction with accompanying drawing and specific embodiment:

A stroller for children, comprising a stroller frame 1 with an unfolded position and a folded position, a front wheel assembly 2, a rear wheel assembly 3, and a locking mechanism for locking the stroller frame 1 in the unfolded position. the

The cart frame 1 includes an arc-shaped underframe 9 that arches downward, a front wheel frame 10 that is rotatably connected to the front end of the underframe 9 through a first rotating shaft 21, and a lower part that is connected to the front end of the underframe 9. The rear part of the underframe 9 is rotatably connected to the rear wheel frame 6 through the second rotating shaft, crossed with the top of the front wheel frame 10 and connected to the front bracket 5 through the third rotating shaft 23 at the intersection, The side armrest 4 that is rotatably connected to the upper end of the front bracket 5 through the fifth rotating shaft 25, the push lever 7 that is rotatably connected to the rear of the side armrest 4 through the seventh rotating shaft 27, and one end to the The aforementioned rear wheel frame 6 is rotatably connected to the rear link 11 through the ninth rotating shaft 29, and the seat post 8 is rotatably connected to the front end of the front wheel frame 10 through the fourth rotating shaft 24,

The front portion of the side armrest 4 is also rotatably connected with the upper end of the rear wheel frame 6 through the sixth rotating shaft 26, the sixth rotating shaft 26 is located behind the fifth rotating shaft 25, and the pushing The lower part of the bar 7, the rear end of the seat post 8 and the other end of the rear connecting rod 11 are connected by the eighth rotating shaft 28 coaxially rotating, and the fourth rotating shaft 24 is located at above the third rotating shaft 23 . the

The front wheel assembly 2 is arranged at the bottom of the front wheel frame 10 , and the rear wheel assembly 3 is arranged at the rear of the chassis 9 . The front wheel frame 10 includes a front wheel link extending in the front-to-back direction, and the front wheel assembly 2 includes a front wheel joint, a front wheel arranged at one end of the front wheel joint, and the front wheel The other end of the joint is rotatably sleeved on the front wheel link, and the rear end of the front wheel link is rotatably connected to the front end of the chassis 9 . the

The front support 5 intersects with the front wheel frame 10, that is, the front wheel frame 10 and the front frame 5 form an "X" shape. During the folding process, the front wheel frame 10 and the front frame 5 The interference between them is small, making the volume smaller and more compact after folding. the

The locking mechanism is arranged between the lower end of the push rod 7 and the rear wheel frame 6 . the

The part extending downward from the third rotating shaft 23 on the front bracket 5 is the front bracket extension section. When the cart frame is in the unfolded position, the front bracket extension section blocks the One side of the front wheel frame 10. Gives a simple look. the

The front, back, up and down mentioned above are defined when the cart frame is in the unfolded position. And the position where the front wheel assembly 2 is located is the front, and the position where the rear wheel assembly 3 is located is the rear. The top of the push handle bar is the top. the

As shown in accompanying drawings 1 to 3, when the locking mechanism is unlocked, the push handle bar 7 is turned forward and downward, and the side armrest 4, the seat post 8, the seat Under the influence of bar 8 and connecting rod 11, described front bracket 5 is folded closer with described front wheel frame 10, makes described front wheel frame 10 and described underframe 9 move closer, and described rear wheel The upper part of the frame 6 is close to the bottom frame 9, so the front wheel assembly 2 can be close to the push handle bar 7, and the volume is small after folding. the

The front wheel assembly 2 is rotatably arranged on the front wheel frame 10, and a front wheel locking mechanism is arranged between the front wheel assembly 2 and the front wheel frame 10, and the rear The wheel assembly 3 is rotatably arranged on the underframe 9, and a rear wheel locking mechanism is arranged between the rear wheel assembly 3 and the underframe 9, and the child stroller has a pushing state and In the rocking state, when the child stroller is in the pushing state, the front wheels of the front wheel assembly 2 and the rear wheels of the rear wheel assembly 3 respectively touch the ground to support the stroller frame 1, when When the stroller is in a rocking state, the front wheels and the rear wheels are respectively located above the underframe 9 , and the underframe 9 is on the ground. the

The front wheel locking mechanism is, for example, provided with a sliding member with a groove on the front wheel joint. When locking, the front wheel connecting rod is inserted in the groove. When the front wheel connecting rod is separated from the groove, the two can rotate Flip the front wheel. the

The rear wheel locking mechanism is, for example, provided with a lock groove on the underframe 9, and a bolt is slidably arranged on the rear wheel joint of the rear wheel assembly. When locking, the bolt is inserted in the lock groove. When the latch is separated from the lock groove, the two can be rotated to realize the turning of the rear wheel. the

As mentioned above, we have fully described according to the purpose of the present invention, but the present invention is not limited to the above-mentioned embodiments and implementation methods. Practitioners in the relevant technical fields may make various changes and implementations within the scope permitted by the technical ideas of the present invention. the

Claims (8)

1. children trolley, comprise go-cart vehicle frame (1), front component (2), the wheel assembly (3) with expanded position and folding position, the lockout mechanism that is used for described go-cart vehicle frame (1) is locked in expanded position, described go-cart vehicle frame (1) comprises underframe (9), it is characterized in that:

Described go-cart vehicle frame (1) also comprise with the leading section of described underframe (9) by first rotating shaft (21) the bonded assembly front wheel carrier (10) that rotates, described front component (2) is arranged at the bottom of described front wheel carrier (10), and described wheel assembly (3) is arranged at the rear portion of described underframe (9);

Described go-cart vehicle frame (1) also comprises front frame (5), and described front frame (5) intersects with the top of described front wheel carrier (10) and is connected rotatedly by described the 3rd rotating shaft (23) at infall;

Described underframe (9) is the rod member of the curved shape that arches upward downwards, described front component (2) is located on the described front wheel carrier (10) rotationally, and be provided with the front-wheel lockout mechanism between described front component (2) and the described front wheel carrier (10), described wheel assembly (3) can be arranged on the described underframe (9) rotationally, and be provided with the trailing wheel lockout mechanism between described wheel assembly (3) and the described underframe (9), described children trolley has implementation state and swinging condition, when described children trolley is under the implementation state, the trailing wheel of the front-wheel of described front component (2) and described wheel assembly (3) lands respectively and supports described go-cart vehicle frame (1), when described children trolley is under the swinging condition, described front-wheel and described trailing wheel lay respectively at the top of described underframe (9), and described underframe (9) lands.

2. children trolley according to claim 1, it is characterized in that: the rear portion that described go-cart vehicle frame (1) also comprises bottom and described underframe (9) by second rotating shaft rotate bonded assembly rear wheel frame (6), side handrail (4), rotate bonded assembly pulling handle rod (7), an end and described rear wheel frame (6) by the 9th rotating shaft (29) rotate bonded assembly rear linking rod (11), a bar (8) with the rear portion of described side handrail (4) by the 7th rotating shaft (27)

Parts in three parts in the upper end of the upper end of the front portion of described side handrail (4), described front frame (5) and described rear wheel frame (6) are connected rotatedly with two other parts, parts in the rearward end of the bottom of described pulling handle rod (7), described seat bar (8) and three parts in the other end of described rear linking rod (11) are connected rotatedly with two other parts, and the leading section of described seat bar (8) is connected rotatedly with the top of described front frame (5) or described front wheel carrier (10).

3. children trolley according to claim 2 is characterized in that: the leading section of described seat bar (8) is connected by the 4th rotating shaft (24) rotatedly with the upper end of described front wheel carrier (10).

4. children trolley according to claim 3 is characterized in that: described the 4th rotating shaft (24) is positioned at the top of described the 3rd rotating shaft (23).

5. children trolley according to claim 2, it is characterized in that: the upper end of described front frame (5) is connected by the 5th rotating shaft (25) rotatedly with the front portion of described side handrail (4), and the upper end of described rear wheel frame (6) is connected by the 6th rotating shaft (26) rotatedly with described side handrail (4).

6. children trolley according to claim 2 is characterized in that: the bottom of described pulling handle rod (7), the rearward end of described seat bar (8) and the other end of described rear linking rod (11) are rotationally connected by the 8th rotating shaft (28) same axis.

7. children trolley according to claim 2, it is characterized in that: it is the front frame hypomere that described front frame (5) is gone up the part of extending from described the 3rd rotating shaft (23) downwards, when described go-cart vehicle frame is under the expanded position, described front frame hypomere retaining is in a side of described front wheel carrier (10).

8. children trolley according to claim 1, it is characterized in that: described front wheel carrier (10) comprises that the front-wheel connecting rod, the described front component (2) that extend along fore-and-aft direction comprise the front-wheel joint, be arranged on the front-wheel of an end of described front-wheel joint, the other end of described front-wheel joint can be set on the described front-wheel connecting rod rotationally, and the rearward end of described front-wheel connecting rod is connected rotatedly with the leading section of described underframe (9).

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