CN216070159U - Baby stroller - Google Patents

Abstract

The utility model discloses a baby stroller, wherein a stroller frame comprises a push rod assembly, a front support assembly, a rear support assembly, a mounting seat, a linkage frame, a rotating seat and a bottom connecting rod; the lower end of the push rod assembly is rotatably connected with the mounting seat, the front support assembly is mounted on the front side of the mounting seat and can be folded left and right relative to the mounting seat, and the rear support assembly is mounted on the rear side of the mounting seat and can be folded left and right and rotate front and back relative to the mounting seat; the upper part of the linkage frame is rotatably connected with the push rod assembly, the rotating seat is rotatably connected with the lower part of the linkage frame, the left side and the right side of the rotating seat are respectively rotatably connected with a sliding sleeve which is in sliding fit with the front support assembly, the front end of the bottom connecting rod is rotatably connected with the rotating seat, and the rear end of the bottom connecting rod is rotatably connected with the rear support assembly; when the folding bicycle frame is folded, the front support component and the rear support component can be folded left and right, the transverse distance is reduced, and the size of the folded bicycle frame is smaller.

Description

Baby stroller

Technical Field

The utility model relates to the technical field of baby strollers, in particular to a brake mechanism of a baby stroller.

Background

A baby stroller is a "vehicle" for babies, and a baby can walk only when a person assists in pushing or pulling the baby stroller. With the continuous development of society, the probability that people carry babies to travel or play is higher and higher, so that the portable baby stroller capable of being folded quickly can be produced.

The frames of the existing baby stroller are various, the number of the rods of the frames is different, and the connection relation and the connection position between the rods are different, so that the folding principle and the folding mode are different. However, the volume of the existing baby stroller is still large after being folded, and the existing baby stroller cannot be suitable for being stored in a narrow space, and is difficult to meet the increasing requirements of people on small-volume folding baby strollers.

Disclosure of Invention

The utility model aims to: provides a brake mechanism of a baby stroller, which solves the problem that the volume of the prior baby stroller is larger after being folded.

The technical scheme of the utility model is as follows: a baby stroller comprises a frame and a locking mechanism for locking the frame at an unfolding position, wherein the frame comprises a push rod assembly, a front support assembly provided with a front wheel assembly below, and a rear support assembly provided with a rear wheel assembly below, and the frame further comprises a mounting seat, a linkage frame, a rotating seat and a bottom connecting rod; the lower end of the push rod assembly is rotatably connected with the mounting seat, the front support assembly is mounted on the front side of the mounting seat and can be folded left and right relative to the mounting seat, and the rear support assembly is mounted on the rear side of the mounting seat and can be folded left and right and rotate front and back relative to the mounting seat; the upper part of the linkage frame is rotatably connected with the push rod assembly, the rotating seat is rotatably connected with the lower part of the linkage frame, the left side and the right side of the rotating seat are respectively rotatably connected with a sliding sleeve which is in sliding fit with the front support assembly, the front end of the bottom connecting rod is rotatably connected with the rotating seat, and the rear end of the bottom connecting rod is rotatably connected with the rear support assembly;

when the frame is folded, the push rod component drives the rotating seat to move forwards through the linkage frame, the rotating seat drives the front support component to be folded left and right through the sliding fit of the sliding sleeves movably connected at two sides and the front support component, and simultaneously drives the rear support component to rotate forwards relative to the mounting seat through the bottom connecting rod and to be folded left and right.

Furthermore, the front support component comprises two front support rods which are arranged in a bilateral symmetry mode, wherein the front support rods are wide in the front and narrow in the back when unfolded and are arranged in a splayed mode, and a front folding rod which is arranged between the front portions of the two front support rods and can be folded and collected in the left-right direction; the rear ends of the two front supporting rods are respectively connected with the mounting seat in a rotating way; sliding sleeves on two sides of the rotating seat are respectively in sliding fit with the two front supporting rods; the front support assembly is folded in left and right directions through the rotating fit of the front support rod and the mounting seat.

The front folding rod is a two-section type folding rod and comprises a left front rod and a right front rod, the outer ends of the left front rod and the right front rod are respectively connected with the front rods on two sides in a rotating mode, and the inner end of the left front rod is connected with the inner end of the right front rod in a rotating mode.

Furthermore, the rear support component comprises two rear support rods which are arranged in a bilateral symmetry mode, narrow in front and wide in back when the rear support components are unfolded and arranged in a splayed mode, and a rear folding rod which is arranged between the rear portions of the two rear support rods and can be folded and folded in the left-right direction; the two sides of the mounting seat are provided with extension parts which extend backwards, downwards and outwards; the front ends of the two rear supporting rods are respectively rotatably connected with the extending parts on two sides of the mounting seat, the rear supporting rods and the rotating shafts of the corresponding extending parts and the extending direction of the extending parts are obliquely arranged, and when the rear support assembly rotates forwards relative to the mounting seat, the two rear supporting rods automatically and transversely inwards fold, so that the rear support assembly is folded leftwards and rightwards.

The rear folding rod is a two-section type folding rod and comprises a left rear rod and a right rear rod, the outer ends of the left rear rod and the right rear rod are respectively connected with the rear rods on two sides in a rotating mode, and the inner end of the left rear rod is connected with the inner end of the right rear rod in a rotating mode.

Furthermore, the push rod assembly comprises a connecting part which is positioned at the lower part and is connected with the mounting seat in a front-back rotating manner, and side push rods which are positioned at the left side and the right side and can be bent forwards relative to the connecting part.

Furthermore, a push handle assembly is rotatably connected above the push rod assembly; the push handle component comprises side push handles which are respectively connected with the upper ends of the side push rods in a rotating mode and a middle push handle which is arranged between the two side push handles, and the side push handles can be bent forwards relative to the middle push handle.

Further, the link gear includes with rotating seat normal running fit's horizontal pole and be located the horizontal pole both sides and with the horizontal pole rotate be connected and can be buckled forward the side lever, the link gear pass through the side lever upper end with push rod assembly's side push rod rotates and is connected.

Further, the locking mechanism comprises a first locking mechanism arranged between the rotating seat and the mounting seat, and a second locking mechanism arranged between the push handle assembly and the push rod assembly.

The utility model has the advantages that: when the frame is folded, the push rod assembly which is turned forwards drives the rotating seat to move forwards through the linkage frame, the rotating seat drives the front support assembly to be folded left and right through the sliding fit of the sliding sleeves movably connected at two sides and the front support assembly, and simultaneously drives the rear support assembly to rotate forwards relative to the mounting seat and be folded left and right through the bottom connecting rod; in addition, in the folding process, two sides of the push rod component are bent forwards, and the two sides of the push rod component and the two sides of the linkage frame are bent along with the push rod component and the linkage frame under the connection relationship; the folding bicycle frame is novel in structure, the height and the front and rear length of the whole bicycle can be greatly reduced when the folding bicycle frame is folded, the front support assembly and the rear support assembly can be folded in the left and right direction, the push rod assembly and the two sides of the push rod assembly are bent and folded, the transverse distance is reduced, all parts are tightly attached after the bicycle frame is folded, the size is small, and the folding bicycle frame is convenient to store, store and transport.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of the present invention in use;

FIG. 2 is a schematic side view of the structure of FIG. 1;

FIG. 3 is a schematic structural view of the push handle assembly of the present invention during folding after unlocking;

FIG. 4 is a schematic side view of the structure of FIG. 3;

FIG. 5 is a schematic illustration of the present invention in a folding process;

FIG. 6 is a schematic side view of the structure of FIG. 5;

fig. 7, 8 and 9 are schematic perspective views of the folded state of the present invention.

Wherein: 1 a push rod assembly; 1-1 connecting part; 1-2 side push rods; 2, a front support component; 2-1 front support rod; 2-2 front folding rod; 2-2-1 left front rod; 2-2-2 right front rod; 3, a rear support component; 3-1 rear support rod; 3-2, folding the rod; 3-2-1 left rear rod; 3-2-2 right rear rod; 4, a front wheel assembly; 5, a rear wheel assembly; 6, mounting a base; 6-1 extension; 7 a linkage frame; 7-1 cross bar; 7-2 side rods; 8, rotating the seat; 9 bottom connecting rods; 10, a sliding sleeve; 11 a push handle assembly; 11-1 side push handle; 11-2 middle push handle.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to specific conditions, and the conditions used in the experiments are not specifically mentioned.

As shown in fig. 1 to 9, a baby stroller comprises a frame and a locking mechanism for locking the frame at a unfolding position, wherein the frame comprises a push rod assembly 1, a front support assembly 2 provided with a front wheel assembly 4 below, a rear support assembly 3 provided with a rear wheel assembly 5 below, a mounting seat 6, a linkage frame 7, a rotating seat 8 and a bottom connecting rod 9; the lower end of the push rod assembly 1 is rotatably connected with the mounting seat 6 in the front-back direction, the front support assembly 2 is mounted on the front side of the mounting seat 6 and can be folded in the left-right direction relative to the mounting seat 6, and the rear support assembly 3 is mounted on the rear side of the mounting seat 6 and can be folded in the left-right direction and rotated in the front-back direction relative to the mounting seat 6; the upper portion of the linkage frame 7 is rotatably connected with the push rod assembly 1, the rotating seat 8 is rotatably connected with the lower portion of the linkage frame 7, the left side and the right side of the rotating seat 8 are respectively rotatably connected with a sliding sleeve 10 in sliding fit with the front support assembly 2, the front end of the bottom connecting rod 9 is rotatably connected with the rotating seat 8, and the rear end of the bottom connecting rod 9 is rotatably connected with the rear support assembly 3.

The specific structure and installation mode of the front support assembly 2 are as follows: the front support assembly 2 comprises two front support rods 2-1 which are arranged in a bilateral symmetry mode, are wide in front and narrow in back when unfolded and are arranged in a splayed mode, and front folding rods 2-2 which are arranged between the front portions of the two front support rods 2-1 and can be folded in the left-right direction; the rear ends of the two front supporting rods 2-1 are respectively rotatably connected with the mounting seat 6; sliding sleeves 10 on two sides of the rotating seat 8 are respectively in sliding fit with the two front supporting rods 2-1; the front support assembly 2 is folded in left and right directions through the rotating fit of the front support rod 2-1 and the mounting seat 6.

The front folding rod 2-2 is a two-section folding rod and comprises a left front rod 2-2-1 and a right front rod 2-2-2, the outer ends of the left front rod 2-2-1 and the right front rod 2-2-2 are respectively connected with the front rods 2-1 on the two sides in a rotating mode, and the inner end of the left front rod 2-2-1 is connected with the inner end of the right front rod 2-2-2 in a rotating mode.

The specific structure and the installation mode of the rear support component 3 are as follows: the rear support component 3 comprises two rear support rods 3-1 which are arranged in bilateral symmetry, narrow in front and wide in back when unfolded and arranged in a splayed shape, and a rear folding rod 3-2 which is arranged between the rear parts of the two rear support rods 3-1 and can be folded and furled in the bilateral direction; the two sides of the mounting seat 6 are provided with extension parts 6-1 which extend backwards, downwards and outwards; the front ends of the two rear supporting rods 3-1 are respectively connected with the extending parts 6-1 at the two sides of the mounting seat 6 in a rotating mode, and the rotating shafts of the rear supporting rods 3-1 and the corresponding extending parts 6-1 and the extending direction of the extending parts 6-1 are arranged in an inclined mode, so that when the rear support assembly 3 rotates forwards relative to the mounting seat 6, the two rear supporting rods 3-1 are automatically folded inwards in a transverse mode, and the rear support assembly 3 is folded inwards in a left-right mode.

The rear folding rod 3-2 is a two-section folding rod, and comprises a left rear rod 3-2-1 and a right rear rod 3-2-2, the outer ends of the left rear rod 3-2-1 and the right rear rod 3-2-2 are respectively connected with the rear rods 3-1 at the two sides in a rotating manner, and the inner end of the left rear rod 3-2-1 is connected with the inner end of the right rear rod 3-2-2 in a rotating manner.

In this embodiment, the push rod assembly 1 is connected with the push handle assembly 11 in a forward and backward rotating manner, and through a two-stage structure, the volume of the folded whole vehicle can be greatly reduced while the pushing height is not affected.

In this embodiment, the push rod assembly 1 has a specific structure that the push rod assembly 1 includes a connecting portion 1-1 located at the lower portion and rotationally connected with the mounting base 6 in the front-back direction, and side push rods 1-2 located at the left and right sides and capable of bending forward relative to the connecting portion 1-1.

In this embodiment, the specific structure of the handle pushing assembly 11 is as follows: the push handle assembly 11 comprises side push handles 11-1 which are respectively connected with the upper ends of the side push rods 1-2 in a front-back rotating manner, and a middle push handle 11-2 which is rotatably arranged between the two side push handles 11-1, wherein the side push handle 11-1 can be bent forwards relative to the middle push handle 11-2.

In this embodiment, the linkage frame 7 includes a cross bar 7-1 rotatably engaged with the rotating base 8, and side bars 7-2 located at both sides of the cross bar 7-1, rotatably connected with the cross bar 7-1, and capable of bending forward, and the linkage frame 7 is rotatably connected with the side push rods 1-2 of the push rod assembly 1 through the upper ends of the side bars 7-2.

The push rod assembly 1, the push handle assembly 11 and the linkage frame 7 which are bendable at two sides are structurally designed, so that the left-right distance of the folded whole vehicle can be further reduced, and the folding volume is further reduced.

In this embodiment, the locking mechanism includes a first locking mechanism disposed between the rotating seat 8 and the mounting seat 6, and a second locking mechanism disposed between the handle assembly 11 and the push rod assembly 1. The first and second locking mechanisms lock the stroller when the stroller is in the deployed position to ensure proper use of the stroller. The first locking mechanism and the second locking mechanism are both locking structures commonly used in the field, and therefore, the structures thereof are not described in detail. It should be noted that the locking mechanism of the present embodiment may be used as long as it can lock and unlock the entire stroller.

Further, the second locking mechanism and the first locking mechanism may preferably be a linkage locking structure, that is, when the push handle assembly 11 and the push rod assembly 1 are folded and folded, the locking of the first locking mechanism is automatically released. Since the linkage locking structure is a common structure in the art, and the linkage manner is various, further description and structural limitations are not required.

When the frame is in the expansion position, push rod subassembly 1 with the mounting point of mount pad 6 is located preceding bracket subassembly 2 with the back upper place of the mounting point of mount pad 6, back bracket subassembly 3 with the mounting point of mount pad 6 is located preceding bracket subassembly 2 with the mounting point of mount pad 6 and push rod subassembly 1 with the back below of the mounting point of mount pad 6. The linkage frame 7 is obliquely arranged from front to back, the bottom connecting rod 9 is obliquely arranged from front to back, and the sliding sleeve 10 and the rotating seat 8 are positioned at the rear part of the front support assembly 1.

When the frame is folded, firstly, the locking of the second locking mechanism is released, then the pushing handle assembly 11 is turned backwards, the locking of the first locking mechanism is released, then the pushing rod assembly 1 is turned forwards, the pushing rod assembly 1 drives the rotating seat 8 to move forwards through the linkage frame 7, the rotating seat 8 drives the front support assembly 2 to be folded left and right through the sliding fit of the sliding sleeves 10 movably connected at two sides and the front support assembly 2, and simultaneously the bottom connecting rod 9 drives the rear support assembly 3 to rotate forwards relative to the mounting seat 6 and to be folded left and right. In addition, the two sides of the push handle component 11 are bent forwards, and the two sides of the push rod component 1 and the linkage frame 7 are bent along with the connection relationship, so that the left-right distance of the folded whole vehicle is further reduced, and the folding volume is further reduced.

The folding bicycle frame is novel in structure, the height and the front and rear length of the whole bicycle can be greatly reduced when the folding bicycle frame is folded, the front support assembly 2 and the rear support assembly 3 can be folded left and right, the push rod assembly 1, the push rod assembly 11 and the two sides of the linkage frame 7 are bent and folded, the transverse distance is reduced, parts are tightly attached after the folding bicycle frame is folded, the size is small, and the folding bicycle frame is convenient to store, store and transport.

The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by using equivalent substitutions or equivalent transformations fall within the scope of the present invention.

Claims (10)

1. The utility model provides a baby stroller, includes the frame and locks the frame in the locking mechanical system under the expansion position, the frame includes push rod subassembly (1), is equipped with front support subassembly (2) of front wheel subassembly (4) below and is equipped with rear support subassembly (3) of rear wheel subassembly (5) below, its characterized in that: the frame further comprises a mounting seat (6), a linkage frame (7), a rotating seat (8) and a bottom connecting rod (9); the lower end of the push rod assembly (1) is rotatably connected with the mounting seat (6), the front support assembly (2) is mounted on the front side of the mounting seat (6) and can be folded left and right relative to the mounting seat (6), and the rear support assembly (3) is mounted on the rear side of the mounting seat (6) and can be folded left and right and rotate front and back relative to the mounting seat (6); the upper part of the linkage frame (7) is rotatably connected with the push rod assembly (1), the rotating seat (8) is rotatably connected with the lower part of the linkage frame (7), the left side and the right side of the rotating seat (8) are respectively rotatably connected with a sliding sleeve (10) in sliding fit with the front support assembly (2), the front end of the bottom connecting rod (9) is rotatably connected with the rotating seat (8), and the rear end of the bottom connecting rod (9) is rotatably connected with the rear support assembly (3);

when the frame is folded, the push rod assembly (1) drives the rotating seat (8) to move forwards through the linkage frame (7), the rotating seat (8) drives the front support assembly (2) to be folded left and right through the sliding sleeves (10) movably connected with the two sides and the sliding fit of the front support assembly (2), and meanwhile the bottom connecting rod (9) drives the rear support assembly (3) to rotate forwards relative to the mounting seat (6) and to be folded left and right.

2. A stroller in accordance with claim 1, in which: the front support assembly (2) comprises two front support rods (2-1) which are arranged in bilateral symmetry, are wide in front and narrow in back when unfolded and are arranged in a splayed shape, and front folding rods (2-2) which are arranged between the front parts of the two front support rods (2-1) and can be folded in left and right directions; the rear ends of the two front supporting rods (2-1) are respectively rotatably connected with the mounting seat (6); sliding sleeves (10) on two sides of the rotating seat (8) are respectively in sliding fit with the two front supporting rods (2-1); the front support assembly (2) is folded in left and right directions through the rotating fit of the front support rod (2-1) and the mounting seat (6).

3. A stroller in accordance with claim 2, in which: the front folding rod (2-2) is a two-section folding rod and comprises a left front rod (2-2-1) and a right front rod (2-2-2), the outer ends of the left front rod (2-2-1) and the right front rod (2-2-2) are respectively connected with the front rods (2-1) on the two sides in a rotating mode, and the inner end of the left front rod (2-2-1) is connected with the inner end of the right front rod (2-2-2) in a rotating mode.

4. A stroller in accordance with claim 1, in which: the rear support component (3) comprises two rear support rods (3-1) which are arranged in bilateral symmetry, narrow in front and wide in back when unfolded and arranged in a splayed shape, and a rear folding rod (3-2) which is arranged between the rear parts of the two rear support rods (3-1) and can be folded in left and right directions; the two sides of the mounting seat (6) are provided with extension parts (6-1) which extend backwards, downwards and outwards; the front ends of the two rear supporting rods (3-1) are respectively rotatably connected with the extending parts (6-1) on the two sides of the mounting seat (6), the rotating shafts of the rear supporting rods (3-1) and the corresponding extending parts (6-1) are obliquely arranged with the extending direction of the extending parts (6-1), and when the rear supporting assembly (3) rotates forwards relative to the mounting seat (6), the two rear supporting rods (3-1) automatically and transversely fold inwards, so that the rear supporting assembly (3) is folded leftwards and rightwards.

5. A stroller in accordance with claim 4 in which: the rear folding rod (3-2) is a two-section folding rod and comprises a left rear rod (3-2-1) and a right rear rod (3-2-2), the outer ends of the left rear rod (3-2-1) and the right rear rod (3-2-2) are respectively connected with the rear support rods (3-1) on the two sides in a rotating mode, and the inner end of the left rear rod (3-2-1) is connected with the inner end of the right rear rod (3-2-2) in a rotating mode.

6. A stroller in accordance with claim 1, in which: the locking mechanism comprises a first locking mechanism arranged between the rotating seat (8) and the mounting seat (6).

7. A stroller in accordance with claim 1, in which: the push rod assembly (1) comprises a connecting part (1-1) which is positioned at the lower part and is connected with the mounting seat (6) in a front-back rotating manner, and side push rods (1-2) which are positioned at the left side and the right side and can be bent forwards relative to the connecting part (1-1).

8. A stroller in accordance with claim 7 in which: a push handle component (11) is rotatably connected above the push rod component (1); the push handle assembly (11) comprises side push handles (11-1) which are respectively connected with the upper ends of the side push rods (1-2) in a rotating mode, and a middle push handle (11-2) which is arranged between the two side push handles (11-1), wherein the side push handles (11-1) can be bent forwards relative to the middle push handle (11-2).

9. A stroller in accordance with claim 8, in which: the locking mechanism comprises a second locking mechanism arranged between the push handle assembly (11) and the push rod assembly (1).

10. A stroller in accordance with claim 7 in which: the linkage frame (7) comprises a cross rod (7-1) which is in running fit with the rotating seat (8) and side rods (7-2) which are positioned on two sides of the cross rod (7-1) and are rotationally connected with the cross rod (7-1) and are bent forwards, and the linkage frame (7) is rotationally connected with side push rods (1-2) of the push rod assembly (1) through the upper ends of the side rods (7-2).

Images