CN212047539U - Stroller with foldable seat - Google Patents

Abstract

The utility model provides a children's shallow has expansion state and fold condition, and it includes preceding foot subassembly, back foot subassembly, hand (hold) subassembly and seat subassembly, the bottom of the top of preceding foot subassembly, hand (hold) subassembly all rotates with back foot subassembly to be connected, when folding preceding foot subassembly and hand (hold) subassembly rotate and are close to back foot subassembly, the seat subassembly has the movable part of being connected with the top rotation of preceding foot subassembly, at the shallow expansion state the movable part is the state of lying, and the rear end is located the top of back foot subassembly, at shallow fold condition the movable part rotates downwards to be close to back foot subassembly. The utility model discloses a rotate the movable part of seat subassembly and the top of preceding foot subassembly and connect, under the condition that seat subassembly keeps same length, avoid the back subassembly too to lean on the back, surpass the back foot subassembly under fold condition.

Description

Stroller with foldable seat

Technical Field

The utility model relates to a children's shallow especially relates to a children's shallow of folding seat.

Background

For the foldable stroller, the seat arrangement can be generally divided into two cases, namely, the seat is directly arranged on the frame, for example, seat rods are arranged at two sides of the frame, a cross rod is arranged between the seat rods, and a seat plate in the cloth cover is placed on the cross rod; the other is that the seat can be detached and separated from the frame, and the seat generally comprises a backrest and a seat, and the backrest and the seat can be folded in a relative rotation mode.

For example, CN109178077A discloses a foldable baby stroller, wherein a seat rod is respectively disposed at the inner sides of two side brackets, a sliding sleeve is disposed on the lower handle rod, one end of the seat rod is engaged with the sliding sleeve, and the other end is rotatably connected with an upper connecting rod, when the stroller is folded, the seat rod is closed with the lower handle rod and the upper connecting rod. The rear of the seat, however, tends to provide a back rest because the seat is too far back, resulting in the back rest extending beyond the rear foot assembly in the folded condition.

SUMMERY OF THE UTILITY MODEL

The utility model provides a child stroller with a foldable seat, which solves the problem that the backrest of the traditional child stroller can exceed the rear foot assembly under the folding state.

The utility model provides a children's shallow, has expansion state and fold condition, and it includes preceding foot subassembly, back foot subassembly, hand (hold) subassembly and seat subassembly, the top of preceding foot subassembly, the bottom of hand (hold) subassembly all rotate with back foot subassembly and be connected, when folding preceding foot subassembly and hand (hold) subassembly rotate and be close to back foot subassembly, the seat subassembly has the movable part of being connected with the top rotation of preceding foot subassembly, at the shallow expansion state the movable part is the state of lying, and the rear end is located the top of back foot subassembly, at shallow fold condition the movable part rotates downwards and is close to back foot subassembly.

In the unfolded position, the seat assembly should be substantially horizontal and spaced from the ground, and the back assembly, which is located at the rear of the seat assembly, should be inclined, which determines the need for the back assembly to be flipped down closer to the rear foot assembly when the stroller is folded.

Since the front foot assembly, the arm rest assembly and the back assembly are inclined in the same direction and the back assembly is inclined in the opposite direction, the back assembly is easily beyond the back assembly as the seat is higher and the back is more rearward.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the seat assembly has an extension fixedly coupled to the forefoot assembly, and the extension is coplanar with the movable portion in the deployed state.

Optionally, the movable portion includes a pair of backseat levers rotatably connected to the front leg assembly and a transverse bar disposed between the backseat levers.

Optionally, the movable portion comprises a pair of backseat levers pivotally coupled to the front foot assembly, and the extension portion comprises a pair of front seat levers fixedly coupled to the front foot assembly, the front seat levers and the backseat levers being substantially collinear in the deployed position of the stroller.

Optionally, the handle assembly includes a pair of handle rods, the handle rods include an upper handle rod and a lower handle rod which are rotatably connected, and when the handle assembly is folded, the handle rods are folded and rotate with the front foot assembly to be close to the rear foot assembly.

Optionally, the front foot assembly and the lower handle bar are rotatably connected with the front foot assembly and the lower handle bar respectively, and the movable portion and the first linkage bar are rotatably connected with the two ends of the second linkage bar respectively.

Optionally, the stroller comprises a pair of grab bars with bottoms rotatably connected to the top of the rear leg assembly.

Optionally, the handle assembly includes a pair of handle bars, the handle bars include an upper handle bar and a lower handle bar that are rotatably connected, and the top of the grab bar is rotatably connected with the upper handle bar.

Optionally, in the deployed state of the stroller, a rear portion of the movable portion is located in a space between the grab bar and the handlebar assembly.

Optionally, the rear portion of activity portion articulates there is the back subassembly, the junction of activity portion and preceding foot subassembly closes on the junction of bar and back foot subassembly, and in fold condition, activity portion and back subassembly are located the space between bar and the back foot subassembly.

Optionally, the stroller includes a second linkage, one end of the second linkage is rotatably connected to the movable portion, the other end of the second linkage is rotatably connected to a driving member, and the front leg assembly, the movable portion, the second linkage and the driving member form a four-bar linkage.

Optionally, the driving member is a rear foot assembly.

Optionally, the front foot assembly and the rear foot assembly respectively include a pair of front foot rods and a pair of rear foot rods, the front foot assembly further includes a bracket fixed on the inner side of the top of the front foot rods, and the movable portion is rotatably connected with the bracket.

Optionally, the back of the movable part is hinged with a backrest component.

The utility model discloses a rotate the movable part of seat subassembly and the top of preceding foot subassembly and connect, under the condition that seat subassembly keeps same length, avoid the back subassembly too to lean on the back, surpass the back foot subassembly under fold condition.

Drawings

Fig. 1 is a simple schematic structural diagram of the stroller of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the stroller of the present invention.

Fig. 3 is a schematic side view of the stroller of the present invention in the unfolded state.

Fig. 4 is a schematic side view of the middle state of the stroller of the present invention.

Fig. 5 is a schematic side view of the folding state of the stroller of the present invention.

The reference numerals in the figures are illustrated as follows:

1. a forefoot assembly; 10. a front foot bar; 11. a front wheel; 12. and (5) pedaling.

2. A back foot assembly; 20. a rear foot bar; 21. a rear wheel; 22. a cross bar; 23. and (7) braking.

3. A handle assembly; 30. a revolute joint; 31. an upper handle bar; 32. a lower handle bar; 33. a grab rail; 34. a lock releasing device.

4. A seat assembly; 40. a support; 41. a rear seat post; 42. a front seat post; 43. a leg rest bar; 44. a transverse bar; 401. a movable portion; 402. a fixed part.

51. A first linkage rod; 52. the second linkage rod.

6. A backrest assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in figure 1, the child stroller has an unfolded state and a folded state, and comprises a front foot assembly 1, a rear foot assembly 2, a handle assembly 3, a seat assembly 4 and a backrest assembly 6, wherein the top of the front foot assembly 1 and the bottom of the handle assembly 3 are rotatably connected with the rear foot assembly 2, and the two rotating connecting shafts can be overlapped or not overlapped.

The front wheel 11 is arranged at the bottom of the front foot component 1, the rear wheel 21 is arranged at the bottom of the rear foot component 2, as shown in figure 2, in the unfolding state, a certain distance is reserved between the front wheel 11 and the rear wheel 21, the tops of the front foot component 1 and the rear foot component 2 are rotatably connected, a stable triangle is formed between the front foot component 1 and the rear foot component 2 and the ground, and the supporting cart is in a standing state.

Most of the existing stroller have the seat assembly 4 partially fixed on the handle assembly 3. it can be seen that, since the handle assembly 3 is obliquely arranged, the seat assembly 4 is higher, and the position of the rear end of the seat assembly is more behind, so that the rear foot assembly 2 is easily exceeded after the backrest is folded.

To solve this problem, the seat assembly 4 has a movable portion 401 pivotally connected to the top of the front leg assembly 1, the movable portion 401 being in a flat position in the unfolded position of the stroller and having a rear end located above the rear leg assembly 2, and the portion being pivoted downwardly in the folded position of the stroller close to the rear leg assembly 2, so that the rear portion of the seat assembly 4 can be moved forward, and the backrest assembly 6 can be prevented from extending beyond the rear leg assembly 2 in the folded position, even if the length of the seat assembly 4 is kept constant.

As shown in fig. 2-5, a stroller for children comprises a front leg assembly 1, a rear leg assembly 2, a handlebar assembly 3, a seat assembly 4 and a backrest assembly 6, which comprises a pair of grab bars 33, the bottoms of the grab bars 33 being rotatably connected to the top of the rear leg assembly 2.

As shown in fig. 3, in the unfolded state, the movable portion 401 is located in a space between the grab bar 33 and the rear foot assembly 2, and the rear portion is located in a space between the grab bar 33 and the handlebar assembly 3. The connecting position of the movable part 401 and the front foot assembly 1 is close to the connecting position of the grab bar 33 and the rear foot assembly 2, and the back part of the movable part 401 is hinged with the backrest assembly 6, as shown in fig. 5, and in the folding state, the movable part 401 and the backrest assembly 6 are positioned in the space between the grab bar 33 and the rear foot assembly 2.

The movable portion 401 may be plate-shaped, and in one embodiment, as shown in fig. 2-5, the movable portion 401 includes a pair of backseat levers 41 rotatably coupled to the front foot assembly 1, and a transverse bar 44 is provided between the backseat levers 41 for supporting the seat plate inside the cloth cover. In one embodiment, the rear ends of the two backseat levers 41 are bent inward and then connected into a single body to facilitate pivotal connection with the backrest module 6. The backrest module 6 can likewise be plate-shaped, which in one embodiment is surrounded by an annular bar.

To increase the length of the seat, as shown in figure 1, the seat assembly 4 includes an extension 402 fixedly coupled to the forefoot assembly 2, the extension 402 may be plate-shaped. In one embodiment, as shown in fig. 2-5, the extension 402 includes a pair of front seat posts 42 fixedly coupled to the front foot assembly 2, and the front seat posts 42 are aligned with the rear seat post 1 in the stroller deployed position.

The front end of the front seat rod 42 is also provided with a leg rest rod 43, a rotary joint is arranged between the front seat rod and the leg rest rod, the rotary joint is provided with a plurality of gears, and the inclination angle of the leg rest rod 43 can be adjusted.

As shown in fig. 1, in one embodiment, the handle assembly 3 includes a pair of handle bars, the handle bars include an upper handle bar 31 and a lower handle bar 32, which are rotatably connected, a rotating joint 30 is provided at the joint, and a sunshade canopy bar is further installed at the rotating joint 30. As shown in fig. 2-5, the bottom of the two lower handle bars 32 are rotatably connected with the rear foot assembly 2, the top of the two upper handle bars 31 are bent inwards to be connected into a whole, and the middle part is provided with a lock release device.

In one embodiment, as shown in fig. 2 and 3, the stroller further comprises a pair of grab bars 33, and the lower handle bar 32, the upper handle bar 31, the grab bars 33 and the rear foot assembly 2 form a four-bar linkage. When folded, the handle bar is folded in half and simultaneously rotated to approach the rear foot assembly 2.

In order to realize the interlocking folding of the front foot assembly 1, a pair of first interlocking rods 51 is arranged between the front foot assembly 1 and the rear foot assembly 2, two ends of each first interlocking rod 51 are respectively connected with the front foot assembly 1 and the lower handle bar 32 in a rotating way, and the connecting position of the first interlocking rod 51 and the lower handle bar 32 can be an extension section of the lower handle bar 32 or the middle part thereof.

Of course, two folding rods may be disposed between the front leg assembly 1 and the rear leg assembly 2, two ends of the two folding rods are rotatably connected to the front leg assembly 1 and the rear leg assembly 2, a driving rod is rotatably connected to the two folding rods and the grab bar 33, or an extended section of the lower handle bar 32 is rotatably connected to the two folding rods.

In order to keep the stroller stable in the unfolded state, in one embodiment, a locking device is arranged in the rotating joint between the grab bar 33 and the upper grab bar 31, the locking device comprises two parts which are rotatably connected, wherein one part is provided with an elastic locking pin, the circumferential surface of the other part is provided with a locking groove, when the elastic locking pin is inserted into the locking groove, the locking device is locked, the stroller cannot be folded, and when the elastic locking pin is withdrawn from the locking groove, the locking device is unlocked, and the stroller can be folded.

In order to realize the interlocking folding of the seat assembly 4, the stroller includes the second interlocking rod 52 and the driving member, the driving member may be the rear leg assembly 2, the grab bar 33 or the first interlocking rod, as long as the driving member, the second interlocking rod 52, the movable portion 401 and the front leg assembly 1 can form a four-bar linkage mechanism, and therefore the driving member may also be the driving rod. In one embodiment, the driving member is the rear foot assembly 2, such that the second linkage 52 is hidden under the seat assembly 4.

In one embodiment, as shown in fig. 2-5, the front foot assembly 1 and the rear foot assembly 2 respectively comprise a pair of front foot rods 10 and a pair of rear foot rods 20, the top of the front foot rods 10 and the bottom of the grab rail 33 are rotatably connected with the top of the rear foot rods 20, and the rotating connection shafts may or may not coincide.

A pedal 12 is arranged between the two front foot rods 10, a front wheel 11 is arranged at the bottom, the front wheel 11 is a universal wheel, and a connecting shaft of the universal wheel is deviated from the center of the front wheel. A cross bar 22 is arranged between the two rear foot bars 20, rear wheels 21 are arranged at two ends of the cross bar 22, and a brake 23 is arranged in the middle.

For ease of installation, in one embodiment, the top inner side of the forefoot assembly 1 is provided with a bracket 40 for securing the seat assembly 4, and more preferably, the bracket 40 is fixedly attached to the front seat post 42 and pivotally attached to the rear seat post 41.

In order to ensure that the backrest module 6 does not extend beyond the rear foot module 2 in the folded state, in one embodiment, the rear part of the seat module 4 is hinged to the backrest module 6 and is located in the space between the lower handle bar 32 and the grab bar 33, and the connecting position of the movable part 401 and the front foot module 1 is adjacent to the connecting position of the grab bar 33 and the rear foot module 2, and in the folded state, the backrest module 6 and the movable part 401 are located in the space between the rear foot module 1 and the grab bar 33, so that the length of the movable part 401 and the backrest module 6 is maximized.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (14)

1. The utility model provides a children's shallow, has expansion state and fold condition, and it includes preceding foot subassembly, back foot subassembly, hand (hold) subassembly and seat subassembly, the bottom of the top of preceding foot subassembly, hand (hold) subassembly all rotates with back foot subassembly to be connected, when folding preceding foot subassembly and hand (hold) subassembly rotate and are close to back foot subassembly, a serial communication port, the seat subassembly has the movable part of being connected with the top rotation of preceding foot subassembly, at the shallow expansion state the movable part is the flat state of lying, and the rear end is located the top of back foot subassembly, at the shallow fold condition movable part downwardly rotating is close to back foot subassembly.

2. The stroller of claim 1, wherein the seat assembly has an extension fixedly coupled to the forefoot assembly, the extension being coplanar with the movable portion in the deployed state.

3. The stroller of claim 1 or 2, wherein the movable portion comprises a pair of rear seat posts pivotally coupled to the front leg assembly and a transverse bar disposed between the rear seat posts.

4. The stroller of claim 2, wherein the movable portion comprises a pair of rear seat posts pivotally coupled to the front foot assembly, and the extension comprises a pair of front seat posts fixedly coupled to the front foot assembly, the front seat posts and the rear seat posts being substantially collinear in the deployed position of the stroller.

5. The stroller of claim 1, wherein the handle assembly comprises a pair of handle bars comprising an upper handle bar and a lower handle bar pivotally connected, such that when folded the handle bars fold in half while pivoting the front leg assembly closer to the rear leg assembly.

6. The stroller as claimed in claim 5, comprising a pair of first linking rods and a pair of second linking rods, wherein two ends of the first linking rods are respectively and rotatably connected to the front leg assembly and the lower handle bar, and two ends of the second linking rods are respectively and rotatably connected to the movable portion and the first linking rods.

7. The stroller of claim 1, wherein the stroller comprises a pair of grab bars having bottoms pivotally connected to a top portion of the rear leg assembly.

8. The stroller of claim 7, wherein the handle assembly comprises a pair of handle bars, the handle bars comprising an upper handle bar and a lower handle bar pivotally connected, and a top portion of the grab bar pivotally connected to the upper handle bar.

9. The stroller of claim 7, wherein in the deployed position the rear portion of the movable portion is located in a space between the grab bar and the handlebar assembly.

10. The stroller of claim 7, wherein a back assembly is hinged to a rear portion of the movable portion, a junction of the movable portion and the front foot assembly being proximate a junction of the grab bar and the rear foot assembly, and wherein the movable portion and the back assembly are located in a space between the grab bar and the rear foot assembly in the folded position.

11. The stroller as recited in claim 1, wherein the stroller comprises a second linkage, one end of the second linkage is rotatably connected to the movable portion, the other end of the second linkage is rotatably connected to a driving member, and the front leg assembly, the movable portion, the second linkage and the driving member form a four-bar linkage.

12. The stroller of claim 11, wherein the drive member is a rear foot assembly.

13. The stroller of claim 1, wherein the front and rear foot assemblies each include a pair of front and rear foot bars, the front foot assembly further including a bracket secured to the inside of the top of the front foot bar, the movable portion being pivotally connected to the bracket.

14. The stroller of claim 1, wherein a back assembly is hinged to a rear portion of the movable portion.

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