CN219056354U - Child cart - Google Patents

Abstract

The utility model discloses a baby stroller, which comprises a stroller frame, wherein the stroller frame comprises a front bracket assembly, a bottom bracket assembly, a rear bracket assembly, a first connecting rod and a second connecting rod, the front bracket assembly comprises a first front rod and a second front rod which are connected in a sliding manner, the bottom bracket assembly comprises a first bottom rod and a second bottom rod which are connected in a sliding manner, the lower part of the second front rod is pivotally connected with the front part of the second bottom rod, the rear bracket assembly comprises a rear upper rod and a rear lower rod, the upper part of the rear upper rod is pivotally connected with the upper part of the first front rod, the lower part of the rear lower rod is pivotally connected with the rear part of the first bottom rod, one end part of the first connecting rod is pivotally connected with the front bracket assembly, the other end part of the first connecting rod is pivotally connected with the bottom bracket assembly, one end part of the second connecting rod is pivotally connected with the front bracket assembly or the bottom bracket assembly, and the other end part of the second connecting rod is pivotally connected with the first connecting rod. The child stroller is convenient to fold and operate, flat after being folded and small in size.

Description

Child cart

Technical Field

The utility model relates to the technical field of children products, in particular to a child trolley.

Background

The children's shallow can be used when adult carries children to go out, and children's shallow can be used to bear children, also can bear the article of carrying to make the go out convenient, light. The stroller is generally collapsible such that when the stroller is not in use, the stroller is collapsed to reduce its structural size for portability and storage. In the prior art, part of the children's barrows are inconvenient to fold, and the structural volume is still large after folding, so that the occupied space is large in size, and the children's barrows are inconvenient to carry and store.

Disclosure of Invention

The utility model aims at overcoming the defects in the prior art, and provides a child trolley which is convenient to fold and operate and has smaller structural size after being folded.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a stroller comprising a stroller frame having an expanded state and a collapsed state, a front wheel assembly disposed at a bottom front portion of the stroller frame, and a rear wheel assembly disposed at a bottom rear portion of the stroller frame, the stroller frame comprising:

a front bracket assembly including a first front lever and a second front lever slidably disposed at a lower portion of the first front lever in a length extension direction of the first front lever;

the chassis assembly comprises a first bottom rod and a second bottom rod which can be arranged at the front part of the first bottom rod in a sliding manner along the length extension direction of the first bottom rod, the front wheel assembly is arranged at the front part of the second bottom rod, the rear wheel assembly is arranged at the rear part of the first bottom rod, and the lower part of the second front rod is pivotally connected with the front part of the second bottom rod through a first shaft;

the rear bracket assembly comprises a rear upper rod and a rear lower rod, the upper part of the rear upper rod is pivotally connected with the upper part of the first front rod through a second shaft, the lower part of the rear upper rod is pivotally connected with the upper part of the rear lower rod through a third shaft, and the lower part of the rear lower rod is pivotally connected with the rear part of the first bottom rod through a fourth shaft;

a first link having one end pivotally connected to the front bracket assembly through a fifth shaft and the other end pivotally connected to the chassis assembly through a sixth shaft;

and one end part of the second connecting rod is pivotally connected with the front bracket assembly or the underframe assembly through a seventh shaft, and the other end part of the second connecting rod is pivotally connected with the first connecting rod through an eighth shaft.

Preferably, a crank block mechanism is formed among the first connecting rod, the front bracket assembly and the underframe assembly, and a crank block mechanism is formed among the front bracket assembly or the underframe assembly, the first connecting rod and the second connecting rod.

Preferably, one end of the first link is pivotally connected to an upper portion of the second front link through the fifth shaft, the other end of the first link is pivotally connected to a front portion of the first bottom link through the sixth shaft, one end of the second link is pivotally connected to a lower portion of the first front link through the seventh shaft, and the other end of the second link is pivotally connected to the first link through the eighth shaft.

Further, on the front bracket assembly, the second shaft, the fifth shaft, the seventh shaft and the first shaft are disposed in this order from the top down.

Further, the first front rod is provided with a lumen extending along the length direction of the first front rod, the second front rod is arranged in the lumen of the first front rod in a sliding mode, a connecting piece is arranged on the upper portion of the second front rod and extends out of the lumen of the first front rod, a sliding groove extending along the length direction of the first front rod and matched with the connecting piece is formed in the first front rod, the connecting piece can be arranged in the sliding groove in a sliding mode, and one end portion of the first connecting rod is connected with the connecting piece through the fifth shaft in a pivoting mode.

Preferably, one end of the first link is pivotally connected to the lower portion of the first front link through the fifth axis, the other end of the first link is pivotally connected to the rear portion of the second bottom link through the sixth axis, one end of the second link is pivotally connected to the front portion of the first bottom link through the seventh axis, and the other end of the second link is pivotally connected to the first link through the eighth axis.

Further, on the front bracket assembly, the second shaft, the fifth shaft and the first shaft are sequentially disposed from top to bottom; the first, seventh, sixth and fourth shafts are disposed in the chassis assembly in a front-to-rear order.

Preferably, the front end portion of the first bottom rod is fixedly provided with a first sliding sleeve, the first sliding sleeve is sleeved outside the second bottom rod, and the second bottom rod can be slidably arranged relative to the first sliding sleeve along the front-back direction.

Preferably, the rear end portion of the second bottom rod is fixedly provided with a second sliding sleeve, the second sliding sleeve is sleeved outside the first bottom rod, and the first bottom rod can be slidably arranged relative to the second sliding sleeve along the front-rear direction.

Preferably, the cart frame further comprises a push rod, wherein the lower part of the push rod is pivotally connected with the upper part of the first front rod through a ninth shaft, and the ninth shaft is located above the second shaft.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: when the child stroller is folded, only the second front rod rotates downwards around the first shaft relative to the second bottom rod to be close to the second bottom rod, the first front rod slides downwards relative to the second front rod to be close to the second front rod through the first connecting rod or the second connecting rod, the first bottom rod is driven to slide forwards to be close to the second bottom rod through the first connecting rod or the second connecting rod, and the rear upper rod and the rear lower rod rotate relatively to be close to each other, so that folding operation of the child stroller is realized, and the folding operation is convenient. After the baby carriage is folded, the front support assembly and the underframe assembly are closely close together, the rear support assembly, the first connecting rod and the second connecting rod are all folded between the front support assembly and the underframe assembly, and the baby carriage is flat after being folded, and is compact in structure and small in size, so that the occupied space of the baby carriage is small, and the baby carriage is convenient to carry and store.

Drawings

Fig. 1 is a perspective view of the stroller of embodiment 1 in an unfolded state;

FIG. 2 is a schematic side view of the stroller of example 1 in an unfolded state;

fig. 3 is a schematic perspective view of the stroller of embodiment 1 during folding;

FIG. 4 is a schematic side view of the stroller of example 1 during folding;

fig. 5 is a schematic perspective view of the stroller of embodiment 1 in a folded state;

FIG. 6 is a schematic side view of the stroller of example 1 in a folded condition;

fig. 7 is a schematic front view of the stroller of embodiment 1 in a folded state;

FIG. 8 is a schematic side view of the stroller of example 2 in an unfolded state;

fig. 9 is a schematic side view of the stroller of embodiment 2 in a folded state.

Wherein: 11. a first front rod; 12. a second front rod; 121. a connecting piece; 13. a first bottom bar; 131. a first sliding sleeve; 14. a second bottom bar; 141. the second sliding sleeve; 15. a rear upper rod; 16. a rear lower rod; 17. a first link; 18. a second link; 19. a push rod; 2. a front wheel assembly; 3. a rear wheel assembly; 41. a first shaft; 42. a second shaft; 43. a third shaft; 44. a fourth shaft; 45. a fifth shaft; 46. a sixth shaft; 47. a seventh axis; 48. an eighth shaft; 49. and a ninth axis.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

In the following description, the directions of "front", "rear", "left", "right", "up", "down", etc. are referred to as "front" in the left direction in the drawing, "rear" in the right direction, the upper direction is "up", the lower direction is "down", and the directions perpendicular to the paper surface in the drawing are "left" and "right", respectively, according to fig. 2. The above directional definitions are merely provided to facilitate the description of the utility model and to simplify the description and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation and are not to be construed as limiting the utility model.

As shown in fig. 1 to 9, the child stroller of the present utility model includes a stroller frame having an unfolded state and a folded state, a front wheel assembly 2 provided at a bottom front portion of the stroller frame, and a rear wheel assembly 3 provided at a bottom rear portion of the stroller frame.

The stroller frame includes a front bracket assembly, a chassis assembly, a rear bracket assembly, a first link 17, and a second link 18.

The front bracket assembly includes a first front bracket 11 and a second front bracket 12, the second front bracket 12 being slidably provided at a lower portion of the first front bracket 11 along a length extension direction of the first front bracket 11.

In a specific embodiment, the first front rod 11 has a lumen extending along its length, and the second front rod 12 is partially located in the lumen of the first front rod 11 and slidably disposed along the length of the lumen of the first front rod 11.

The manner in which the first front lever 11 and the second front lever 12 are slidably connected is not limited to the structure given in the present embodiment.

In this embodiment, when the stroller is in the unfolded state, the first front rod 11 and the second front rod 12 both extend obliquely upward from front to back, and the first front rod 11 and the second front rod 12 are arc rods matched with each other, so that the appearance of the stroller is neat and beautiful.

The chassis assembly includes a first chassis bar 13 and a second chassis bar 14. The first bottom bar 13 and the second bottom bar 14 each extend in the front-rear direction. The second bottom bar 14 is provided slidably in the front-rear direction in front of the first bottom bar 13. The front wheel assembly 2 is disposed in front of the second bottom bar 14 and the rear wheel assembly 3 is disposed in rear of the first bottom bar 13.

In this embodiment, the first bottom rod 13 and the second bottom rod 14 are disposed side by side along the left-right direction, the front end portion of the first bottom rod 13 is fixedly provided with a first sliding sleeve 131, the first sliding sleeve 131 is sleeved outside the second bottom rod 14, and the second bottom rod 14 is slidably disposed relative to the first sliding sleeve 131 along the front-rear direction. The second slide sleeve 141 is fixedly provided at the rear end portion of the second bottom rod 14, the second slide sleeve 141 is sleeved outside the first bottom rod 13, and the first bottom rod 13 is slidably provided with respect to the second slide sleeve 141 in the front-rear direction. On the chassis assembly, the first sliding sleeve 131 is positioned in front of the second sliding sleeve 141.

The manner in which the first bottom bar 13 and the second bottom bar 14 are slidably connected is not limited to the structure given in the present embodiment.

The rear bracket assembly comprises a rear upper rod 15 and a rear lower rod 16 positioned below the rear upper rod 15, and the rear upper rod 15 and the rear lower rod 16 are rotatably connected.

The lower portion of the second front lever 12 is pivotally connected to the front portion of the second bottom lever 14 by a first shaft 41. The upper part of the rear upper lever 15 is pivotally connected to the upper part of the first front lever 11 by a second axle 42, the lower part of the rear upper lever 15 is pivotally connected to the upper part of the rear lower lever 16 by a third axle 43, and the lower part of the rear lower lever 16 is pivotally connected to the rear part of the first bottom lever 13 by a fourth axle 44.

The first link 17 is connected between the front bracket assembly and the chassis assembly. Specifically, one end of the first link 17 is pivotally connected to the front bracket assembly through a fifth shaft 45, and the other end of the first link 17 is pivotally connected to the chassis assembly through a sixth shaft 46.

The second link 18 is connected between the front bracket assembly or chassis assembly and the first link 17. Specifically, one end of the second link 18 is pivotally connected to the front bracket assembly or the chassis assembly through a seventh shaft 47, and the other end of the second link 18 is pivotally connected to the first link 17 through an eighth shaft 48.

One end of the first link 17 may be pivotally connected to the first front link 11 or the second front link 12 in the front bracket assembly, and the other end of the first link 17 may be pivotally connected to the first bottom link 13 or the second bottom link 14 in the chassis assembly, but a crank block mechanism may be formed between the first link 17, the front bracket assembly and the chassis assembly.

One end of the first link 17 may be pivotally connected to the first front link 11 or the second front link 12 in the front bracket assembly, or may be pivotally connected to the first bottom link 13 or the second bottom link 14 in the chassis assembly, but a slider-crank mechanism is required to be formed between the front bracket assembly or the chassis assembly, the first link 17, and the second link 18.

The stroller frame may further comprise a push rod 19, a lower portion of the push rod 19 being pivotally connected to an upper portion of the first front rod 11 by a ninth axle 49. The push rod 19 is held by a human hand to push the stroller when the stroller is in use. The push rod 19 may not be provided in the stroller frame, and a grip portion for a hand to grip may be provided on the first front rod 11 or the rear upper rod 15 to push the stroller.

The stroller further comprises a locking mechanism for locking the stroller frame in the unfolded state, which may be arranged between any of the two pivotally or slidably connected parts of the first front support 11, the second front support 12, the first bottom bar 13, the second bottom bar 14, the rear upper bar 15, the rear lower bar 16, the first link 17 and the second link 18. In this application, the locking mechanism is provided at the pivotal connection of the rear upper lever 15 and the rear lower lever 16. The specific structure of the locking mechanism and the structure of the unlocking mechanism for unlocking the locking mechanism can be the structure in the prior art.

The specific connection positions of the first link 17 and the second link 18 are given in the present application as follows.

Example 1

In this embodiment, as shown in fig. 1 to 4, one end portion of the first link 17 is pivotally connected to the upper portion of the second front link 12 via a fifth shaft 45, and the other end portion of the first link 17 is pivotally connected to the front portion of the first bottom link 13 via a sixth shaft 46. One end of the second link 18 is pivotally connected to the lower portion of the first front lever 12 through a seventh shaft 47, and the other end of the second link 18 is pivotally connected to the first link 17 through an eighth shaft 48.

In this embodiment, the upper portion of the second front rod 12 is provided with a connecting member 121, the connecting member 121 extends to the outside of the lumen of the first front rod 11, the first front rod 11 is provided with a slide groove extending along the length direction thereof, the slide groove is matched with the connecting member, the connecting member 121 is slidably disposed in the slide groove, and one end portion of the first connecting rod 17 is pivotally connected with the connecting member 121 through a fifth shaft 45.

Thus, a slider-crank mechanism is formed between the first front rod 11, the second front rod 12, the second bottom rod 14 and the first link 17, and a slider-crank mechanism is also formed between the first front rod 11, the second front rod 12, the first link 17 and the second link 18.

When the stroller is in the unfolded state, as shown in fig. 1 and 2, the ninth shaft 49, the second shaft 42, the fifth shaft 45, the seventh shaft 47 and the first shaft 41 are disposed in this order from the top down on the front bracket assembly. On the first link 17, a fifth shaft 45, an eighth shaft 48, and a sixth shaft 46 are provided in this order from the top. On the bottom bracket assembly, a first shaft 41, a sixth shaft 46, and a fourth shaft 44 are disposed in order from front to rear.

When the stroller is folded from the unfolded state, the locking mechanism is unlocked, the second front rod 12 is rotated downwards around the first shaft 41 to be close to the second bottom rod 14, the first front rod 11 slides downwards along the length extending direction of the second front rod 12 through the second connecting rod 18 to be close to the second front rod 12, the first underframe 13 slides forwards through the first connecting rod 17 to be close to the second underframe 14, and the rear upper rod 15 and the rear lower rod 16 are rotated relatively around the third shaft 43 to be close to each other, so that the folding process is as shown in fig. 3 and 4. Until the second front rod 12 is mostly accommodated in the pipe cavity of the first front rod 11, the first bottom rod 13 is forwards closed with the second bottom rod 14, the whole front bracket assembly and the whole chassis assembly are tightly closed together, the rear upper rod 15, the rear lower rod 16, the first connecting rod 17 and the second connecting rod 18 are all closed between the front bracket assembly and the chassis assembly, and as shown in fig. 5-7, the stroller is in a folded state. At this time, the baby stroller is flat, compact in structure and small in size, so that the baby stroller is convenient to carry and store.

When the stroller is folded, the push rod 19 can be rotated around the ninth shaft 49 to be close to the front bracket assembly, so that the structural size of the folded stroller is smaller.

Example 2

In this embodiment, as shown in fig. 8 and 9, one end of the first link 17 is pivotally connected to the lower portion of the first front lever 11 through a fifth shaft 45, and the other end of the first link 17 is pivotally connected to the rear portion of the second bottom lever 14 through a sixth shaft 46. One end of the second link 18 is pivotally connected to the front of the first bottom bar 13 through a seventh shaft 47, and the other end of the second link 18 is pivotally connected to the first link 17 through an eighth shaft 48.

Thus, a slider-crank mechanism is formed between the first front rod 11, the second front rod 12, the second bottom rod 14 and the first link 17, and a slider-crank mechanism is also formed between the first link 17, the second link 18, the first bottom rod 13 and the second bottom rod 14.

The ninth shaft 49, the second shaft 42, the fifth shaft 45 and the first shaft 41 are sequentially disposed from top to bottom on the front bracket assembly when the stroller is in the unfolded state. On the chassis assembly, a first shaft 41, a seventh shaft 47, a sixth shaft 46, and a fourth shaft 44 are disposed in order from front to rear as shown in fig. 8.

When the stroller is folded from the unfolded state, the locking mechanism is unlocked, the second front rod 12 is rotated downwards around the first shaft 41 to be close to the second bottom rod 14, the first front rod 11 slides downwards along the length extending direction of the second front rod 12 through the first connecting rod 17 to be close to the second front rod 12, the first underframe 13 slides forwards through the second connecting rod 18 to be close to the second underframe 14, and the rear upper rod 15 and the rear lower rod 16 are rotated relatively around the third shaft 43 to be close. Until the second front rod 12 is mostly accommodated in the pipe cavity of the first front rod 11, the first bottom rod 13 and the second bottom rod 14 are close together, the whole front bracket assembly and the whole chassis assembly are close together, the rear upper rod 15, the rear lower rod 16, the first connecting rod 17 and the second connecting rod 18 are all folded between the front bracket assembly and the chassis assembly, and as shown in fig. 9, the stroller is in a folded state.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a children's shallow, includes that have the shallow frame of expansion state and folding state, set up the front wheel subassembly of the bottom front portion of shallow frame and set up the rear wheel subassembly of the bottom rear portion of shallow frame, its characterized in that: the cart frame includes:

a front bracket assembly including a first front lever and a second front lever slidably disposed at a lower portion of the first front lever in a length extension direction of the first front lever;

the chassis assembly comprises a first bottom rod and a second bottom rod which can be arranged at the front part of the first bottom rod in a sliding manner along the length extension direction of the first bottom rod, the front wheel assembly is arranged at the front part of the second bottom rod, the rear wheel assembly is arranged at the rear part of the first bottom rod, and the lower part of the second front rod is pivotally connected with the front part of the second bottom rod through a first shaft;

the rear bracket assembly comprises a rear upper rod and a rear lower rod, the upper part of the rear upper rod is pivotally connected with the upper part of the first front rod through a second shaft, the lower part of the rear upper rod is pivotally connected with the upper part of the rear lower rod through a third shaft, and the lower part of the rear lower rod is pivotally connected with the rear part of the first bottom rod through a fourth shaft;

a first link having one end pivotally connected to the front bracket assembly through a fifth shaft and the other end pivotally connected to the chassis assembly through a sixth shaft;

and one end part of the second connecting rod is pivotally connected with the front bracket assembly or the underframe assembly through a seventh shaft, and the other end part of the second connecting rod is pivotally connected with the first connecting rod through an eighth shaft.

2. The stroller of claim 1, wherein: the first connecting rod, the front bracket assembly and the underframe assembly form a crank block mechanism, and the front bracket assembly or the underframe assembly, the first connecting rod and the second connecting rod form a crank block mechanism.

3. A stroller according to claim 1 or 2, wherein: one end of the first connecting rod is pivotally connected with the upper part of the second front rod through the fifth shaft, the other end of the first connecting rod is pivotally connected with the front part of the first bottom rod through the sixth shaft, one end of the second connecting rod is pivotally connected with the lower part of the first front rod through the seventh shaft, and the other end of the second connecting rod is pivotally connected with the first connecting rod through the eighth shaft.

4. A stroller according to claim 3, wherein: the second shaft, the fifth shaft, the seventh shaft and the first shaft are disposed in this order from the top down on the front bracket assembly.

5. A stroller according to claim 3, wherein: the first front rod is provided with a pipe cavity extending along the length direction of the first front rod, the second front rod is arranged in the pipe cavity of the first front rod in a sliding mode, a connecting piece is arranged on the upper portion of the second front rod and extends out of the pipe cavity of the first front rod, a sliding groove extending along the length direction of the first front rod and matched with the connecting piece is formed in the first front rod, the connecting piece can be arranged in the sliding groove in a sliding mode, and one end portion of the first connecting rod is connected with the connecting piece through a fifth shaft in a pivoting mode.

6. A stroller according to claim 1 or 2, wherein: one end of the first connecting rod is pivotally connected with the lower part of the first front rod through the fifth shaft, the other end of the first connecting rod is pivotally connected with the rear part of the second bottom rod through the sixth shaft, one end of the second connecting rod is pivotally connected with the front part of the first bottom rod through the seventh shaft, and the other end of the second connecting rod is pivotally connected with the first connecting rod through the eighth shaft.

7. The stroller of claim 6, wherein: the second shaft, the fifth shaft and the first shaft are sequentially arranged from top to bottom on the front bracket component; the first, seventh, sixth and fourth shafts are disposed in the chassis assembly in a front-to-rear order.

8. The stroller of claim 1, wherein: the front end part of the first bottom rod is fixedly provided with a first sliding sleeve, the first sliding sleeve is sleeved outside the second bottom rod, and the second bottom rod can be arranged in a sliding manner along the front-back direction relative to the first sliding sleeve.

9. The stroller of claim 1, wherein: the rear end part of the second bottom rod is fixedly provided with a second sliding sleeve, the second sliding sleeve is sleeved outside the first bottom rod, and the first bottom rod can be arranged in a sliding manner along the front-back direction relative to the second sliding sleeve.

10. The stroller of claim 1, wherein: the trolley frame further comprises a push rod, the lower portion of the push rod is pivotally connected with the upper portion of the first front rod through a ninth shaft, and the ninth shaft is located above the second shaft.

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