CN104192189B

CN104192189B - Children's barrow

Info

Publication number: CN104192189B
Application number: CN201410382211.6A
Authority: CN
Inventors: 王俊马
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2014-08-05
Filing date: 2014-08-05
Publication date: 2020-02-28
Anticipated expiration: 2034-08-05
Also published as: CN104192189A

Abstract

The invention discloses a children's cart, wherein the cart frame comprises a front support and a rear support which are arranged in a cross way, a push rod with the lower part pivoted with the upper part of the rear support, an upper connecting rod with the upper part pivoted on the push rod, and a lower connecting rod with the lower part pivoted on the rear support, the rear support is pivoted with a sliding piece, the sliding piece is arranged on the front support in a sliding way along the length extension direction of the front support, the lower part of the upper connecting rod is pivoted with the upper part of the lower connecting rod and the upper part of the front support, two of the three parts are pivoted, and the third part is pivoted with one of the two parts, or the three parts are pivoted together. After the cart frame is unlocked, all rod pieces on the cart frame can be automatically folded under the action of self gravity, so that the cart frame is folded; when the frame of the cart is opened, the push rod is lifted up to enable the rod pieces to be mutually unfolded, the unfolding and folding operations are both convenient, and the folded structure is compact.

Description

Children's barrow

Technical Field

The invention relates to a baby stroller.

Background

The stroller in the prior art includes a stroller frame having an unfolded position and a folded position, a wheel assembly disposed at the bottom of the stroller frame, and a locking mechanism disposed on the stroller frame for locking the stroller frame at the unfolded position. The existing cart frames are various in types, the number of the rod pieces is different, and the connection relation and the connection position between the rod pieces are different, so that the folding principle and the folding mode of the cart frames are different.

Disclosure of Invention

The invention aims to provide a baby stroller which is simple in structure and convenient to fold.

In order to achieve the purpose, the invention adopts the technical scheme that: a children's barrow comprises a stroller frame with an unfolded state and a folded state, a wheel assembly arranged at the bottom of the stroller frame and a locking mechanism used for locking the stroller frame at the unfolded state, wherein the stroller frame comprises a front support and a rear support which are arranged in an intersecting manner, a push rod with the lower part pivoted with the upper part of the rear support, an upper connecting rod with the upper part pivoted on the push rod, and a lower connecting rod with the lower part pivoted on the rear support, the rear support is pivoted with a sliding piece which is arranged on the front support in a sliding manner along the length extending direction of the front support, the lower part of the upper connecting rod is pivoted with the upper parts of the lower connecting rod and the front support, and the third part is pivoted with one of the two parts, or the three components may be connected together at a common pivot.

Preferably, the locking mechanism is a locking member provided between the slider and the front bracket for locking the slider and the front bracket.

Further, an unlocking piece for unlocking the locking piece is arranged on the upper portion of the front support.

Preferably, the lower portion of the lower link is pivotally connected to the rear bracket by a first shaft, and the slider is pivotally connected to the rear bracket by a second shaft, the first shaft being located on the rear bracket below the second shaft.

Furthermore, the sliding part is a sliding sleeve, and the sliding sleeve is sleeved on the front support in a sliding manner along the length extending direction of the front support.

Preferably, the lower portion of the upper link and the upper portion of the lower link are pivotally connected to the upper portion of the front bracket, respectively.

Furthermore, the upper part of the front bracket is fixedly provided with a connecting end head, the length extending direction of the connecting end head is inclined or vertical to the extending direction of the front bracket, and the lower part of the upper connecting rod and the upper part of the lower connecting rod are respectively pivoted on two axial end parts of the connecting end head.

Preferably, the lower portion of the upper link, the upper portion of the lower link, and the upper portion of the front bracket are pivotally connected together.

Preferably, the wheel assembly comprises a front wheel assembly arranged at the bottom of the front bracket and a rear wheel assembly arranged at the bottom of the rear bracket.

Preferably, when the stroller frame is unfolded, an included angle is formed between an extension line where the upper connecting rod is located and an extension line where the lower connecting rod is located.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the child stroller disclosed by the invention, after the stroller frame is unlocked, all rod pieces on the stroller frame can be automatically folded under the action of self gravity, so that the stroller frame is folded; when the frame of the cart is opened, the push rod is lifted up, so that the rod pieces can be mutually unfolded. The child stroller has the advantages that the number of the rod pieces is small, the structure is simple, the unfolding and the folding operations are both convenient, the rod pieces can be tightly folded together after being folded, the occupied space is small, and a user can conveniently store and carry the rod pieces.

Drawings

FIG. 1 is a schematic view of the stroller of the present invention in a deployed configuration;

FIG. 2 is a schematic structural diagram of the stroller of the present invention in a semi-folded state;

FIG. 3 is a schematic view of the stroller of the present invention in a folded configuration;

wherein: 1. a front bracket; 2. a rear bracket; 3. a push rod; 4. an upper connecting rod; 5. a lower connecting rod; 6. a slider (sliding sleeve); 7. a first shaft; 8. a second shaft; 9. connecting the end heads; 10. a front wheel assembly; 20. a rear wheel assembly.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.

The following definitions of directions are defined according to directions viewed by a child sitting on the stroller when the stroller is in the unfolded use state, and the front-back direction is the left-right direction in each drawing, wherein the left direction is front, and the right direction is back; the up-down direction is the up-down direction shown in fig. 1.

Referring to fig. 1 to 3, the stroller includes a stroller frame having an unfolded state and a folded state, a wheel assembly provided at a bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolded state.

The cart frame comprises a front support 1, a rear support 2, a push rod 3, an upper connecting rod 4 and a lower connecting rod 5, wherein the wheel assemblies comprise a front wheel assembly 10 and a rear wheel assembly 20, the front wheel assembly 10 is arranged at the bottom of the front support 1, and the rear wheel assembly 20 is arranged at the bottom of the rear support 2. The front bracket 1 and the rear bracket 2 are arranged in a mutually crossed manner, the rear bracket 2 is pivoted with a sliding piece 6, and the sliding piece 6 can be arranged on the front bracket 1 in a sliding manner along the length extending direction of the front bracket 1, so that the front bracket 1 can rotate relative to the rear bracket 2 and can also slide relative to the rear bracket 2. Here, the sliding member 6 is a sliding sleeve pivotally connected to the rear bracket 2 via a second shaft 8.

The upper part of the rear bracket 2 is pivoted with the lower part of the push rod 3, the upper part of the upper connecting rod 4 is pivoted on the push rod 3, the lower part of the lower connecting rod 5 is pivoted on the rear bracket 2 through a first shaft 7, and the first shaft 7 is positioned below a second shaft 8 on the rear bracket 2. Two of the three parts of the upper part of the front bracket 1, the lower part of the upper link 4 and the upper part of the lower link 5 are pivotally connected, and the third part is pivotally connected to one of the two parts. When the frame is unfolded, an included angle is formed between an extension line of the upper connecting rod 4 and an extension line of the lower connecting rod 5. In this embodiment, the lower portion of the upper link 4 and the upper portion of the lower link 5 are pivotally connected to the upper portion of the front bracket 1, respectively. Of course, the lower part of the upper link 4 and the upper part of the lower link 5 may be pivotally connected to the same upper part of the front bracket 1. Here, in order to make the stroller frame more compact after folding by allowing both the upper link 4 and the lower link 5 to approach the front bracket 1, the upper portion of the front bracket 1 is fixedly provided with a connection end 9, a length extending direction of the connection end 9 is inclined or perpendicular to a length extending direction of the front bracket 1, and a lower portion of the upper link 4 and an upper portion of the lower link 5 are pivotally connected to both axial ends of the connection end 9, respectively.

The locking mechanism is a locking member provided between the slider 6 and the front bracket 1 for locking the same, and an unlocking member (not shown) for unlocking the locking member may be provided at an upper portion of the front bracket 1, so that an operator can unlock the locking mechanism at a rear portion of the stroller to fold the stroller frame.

When the frame of the cart is unfolded, referring to fig. 1, the locking piece of the locking mechanism is in a locking state, the sliding piece 6 is fixed relative to the front bracket 1, the lower connecting rod 5 is supported between the front bracket 1 and the rear bracket 2, and a triangular structure is formed between the lower connecting rod 5 and the front bracket 1 and the rear bracket 2; the upper connecting rod 4 is supported between the push rod 3 and the front bracket 1, a four-bar linkage mechanism is formed among the push rod 3, the front bracket 1, the rear bracket 2 and the upper connecting rod 4, and the frame of the cart is in a stable unfolding state. When the stroller frame needs to be folded, the locking piece is unlocked from the rear of the stroller frame through the unlocking piece, and the sliding piece 6 and the front support 1 can slide relatively.

At this time, under the action of the self gravity of each rod of the cart frame, the front support 1 and the rear support 2 rotate relatively to reduce the height, the sliding piece 6 slides downwards along the length direction of the front support 1 under the action of the lower connecting rod 5, the rear support 2 drives the push rod 3 and the upper connecting rod 4 to rotate relatively to gradually fold the front support 1 and the rear support 2, and finally, the front support 1, the rear support 2, the push rod 3, the upper connecting rod 4 and the push rod 5 are mutually closed together to form a state shown in fig. 3. The folded structure is compact and the occupied space is small.

When the stroller frame needs to be opened, the push rod 3 is lifted, the rear support 2 rotates relative to the front support 1 and the sliding piece 6 gradually slides upwards along the front support 1 under the driving of the push rod 3, the upper connecting rod 4 and the lower connecting rod 5 are gradually unfolded along with the rotation of the front support, the locking piece is locked when all the rod pieces are completely unfolded, and the stroller frame can be in a stable unfolding state.

In conclusion, the child stroller has the advantages that the number of the rods is small, the structure is simple, the unfolding and folding operations are convenient, the rods can be tightly folded together after being folded, the occupied space is small, and a user can conveniently store and carry the child stroller.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a children's shallow, includes the shallow frame that has expansion state and fold condition, locates the wheel subassembly of shallow frame bottom, be used for with the locking mechanical system of shallow frame locking under the expansion state which characterized in that: the cart frame comprises a front support and a rear support which are arranged in an intersecting manner, a push rod, an upper connecting rod and a lower connecting rod, wherein the lower part of the push rod is pivoted with the upper part of the rear support, the upper part of the push rod is pivoted on the push rod, the lower part of the push rod is pivoted on the lower connecting rod, the lower part of the push rod is pivoted on the rear support, the upper connecting rod is pivoted on the rear support, the sliding piece is arranged on the front support in a sliding manner along the length extension direction of the front support, the lower part of the upper connecting rod and the upper part of the lower connecting rod are respectively pivoted on the upper part of the front support, or the lower part of the upper connecting rod, the upper part of the lower connecting rod and the upper part of the front support are connected together, the upper part of the front support is fixedly provided with a connecting end head, the length extension direction of the connecting end head is inclined or vertical to, when the cart frame is unfolded, an included angle is formed between the extension line where the upper connecting rod is located and the extension line where the lower connecting rod is located.

2. The stroller of claim 1, wherein: the locking mechanism is a locking piece which is arranged between the sliding piece and the front bracket and is used for locking the sliding piece and the front bracket.

3. The stroller of claim 2, wherein: and an unlocking piece used for unlocking the locking piece is arranged at the upper part of the front bracket.

4. The stroller of claim 1, wherein: the lower portion of the lower link is pivotally connected to the rear bracket by a first shaft, the slider is pivotally connected to the rear bracket by a second shaft, and the first shaft is located below the second shaft on the rear bracket.

5. Child stroller according to any of claims 1 to 4, characterized in that: the sliding piece is a sliding sleeve which is sleeved on the front support in a sliding mode along the length extending direction of the front support.

6. The stroller of claim 1, wherein: the wheel assembly comprises a front wheel assembly arranged at the bottom of the front support and a rear wheel assembly arranged at the bottom of the rear support.