CN213649705U

CN213649705U - Baby stroller capable of being folded in two directions

Info

Publication number: CN213649705U
Application number: CN202022478590.2U
Authority: CN
Inventors: 唐伟红
Original assignee: Kunshan Weikai Children Products Co Ltd
Current assignee: Kunshan Weikai Children Products Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-09
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a baby stroller capable of being folded in two directions, which comprises a bilateral symmetrical side frame and a foldable transverse connecting component, wherein the side frame comprises a front wheel bracket, a rear wheel bracket, a push rod component, a rear support rod and a connecting rod; the push rod component comprises an upper push rod and a lower push rod which are connected in a rotating way; the rear wheel bracket comprises an upper rear wheel bracket and a lower rear wheel bracket which are connected in a sliding way; the lower end of the lower push rod is rotatably connected with the upper end of the upper rear wheel bracket; the upper end and the lower end of the rear stay bar are respectively and rotatably connected with the lower end of the upper push rod and the upper part of the lower rear wheel bracket; the upper end of the front wheel bracket is rotationally connected with the lower end of the rear stay bar and the upper part of the lower rear wheel bracket; the front end and the rear end of the connecting rod are respectively and rotatably connected with the lower part of the lower push rod and the rear support rod; the upper push rod, the lower push rod, the rear support rod and the connecting rods form a four-bar linkage structure, when the upper push rod and the lower push rod rotate and fold, the upper rear wheel support slides and shrinks relative to the lower rear wheel support under the action of the four-bar linkage structure, the length of the rear wheel support is shortened, and the forward-backward distance of the folded whole vehicle is conveniently reduced.

Description

Baby stroller capable of being folded in two directions

Technical Field

The utility model relates to a baby's shallow field especially relates to a baby's shallow that can two-way folding.

Background

The stroller is a necessary tool for traveling of infants, and users pay more and more attention to the characteristics of small volume, portability and the like of the stroller in addition to pursuing the basic requirements of stability and safety of the stroller, so as to store and carry the stroller.

The frames of the existing baby stroller are various, the folding principle and the folding mode are different, and the folding type baby stroller is roughly divided into a one-way folding type and a two-way folding type. The existing bidirectional folding cart has the advantages of relatively similar structure, novel design and incapability of reducing the volume of the folded whole cart.

Disclosure of Invention

The utility model discloses the purpose is: the utility model provides a baby's shallow that can two-wayly fold, structural design is comparatively novel and can progress and reduce whole car folding back volume, is convenient for deposit and carry.

The technical scheme of the utility model is that: a baby stroller capable of being folded in two directions comprises a stroller frame with an unfolding position and a folding position, and a locking mechanism used for locking the stroller frame when the stroller frame is in the unfolding position, wherein the stroller frame comprises side stroller frames which are arranged in bilateral symmetry and a transverse connecting assembly which is arranged between the left side stroller frame and the right side stroller frame and can be transversely folded, each side stroller frame comprises a front wheel bracket, a rear wheel bracket and a push rod assembly, the bottom of each side stroller frame is provided with a front wheel assembly, the bottom of each side stroller frame is provided with a rear wheel assembly, and each side stroller frame further comprises a rear supporting rod and a connecting; the push rod assembly comprises an upper push rod and a lower push rod which is rotatably connected with the lower part of the upper push rod; the rear wheel bracket comprises a lower rear wheel bracket and an upper rear wheel bracket which is connected with the lower rear wheel bracket in a sliding way; the lower end of the lower push rod is rotatably connected with the upper end of the upper rear wheel bracket; the upper end of the rear support rod is rotatably connected with the lower end of the upper push rod, and the lower end of the rear support rod is rotatably connected with the upper part of the lower rear wheel bracket; the upper end of the front wheel bracket is rotationally connected with the lower end of the rear stay bar and/or the upper part of the lower rear wheel bracket; the front end of the connecting rod is rotationally connected with the lower part of the lower push rod, and the rear end of the connecting rod is rotationally connected with the rear support rod; a four-bar linkage structure is formed among the upper push rod, the lower push rod, the rear support rod and the connecting rods, and when the upper push rod and the lower push rod rotate and fold relatively, the upper rear wheel support is driven to slide and retract relative to the lower rear wheel support under the linkage effect of the four-bar linkage structure, so that the length of the rear wheel support is shortened.

Further, the transverse connecting assembly comprises a pedal folding assembly and an X-shaped folding stay bar assembly; the pedal folding assembly is U-shaped with a backward opening and comprises two pedal side rods which are bilaterally symmetrical and a folding pedal with the left and right ends respectively rotatably connected with the front ends of the two pedal side rods, and the front parts of the pedal side rods are rotatably connected with the front wheel bracket; the front part of the X-shaped folding support rod assembly is movably connected with the lower end of the rear support rod through a front steering joint; the upper rear wheel bracket is inserted into the lower rear wheel bracket, a sliding groove is formed in the side wall of the lower rear wheel bracket, a sliding piece which extends out of the sliding groove and is in sliding fit with the sliding groove is arranged at the lower end of the upper rear wheel bracket, the rear ends of the pedal side rods are rotatably connected with the sliding piece on the corresponding side, and the rear end of the X-shaped folding support rod assembly is movably connected with the sliding piece through a rear steering joint; when the upper rear wheel support slides and retracts relative to the lower rear wheel support, the sliding piece drives the pedal folding assembly and the rear end of the X-shaped folding support rod assembly to move, the front wheel support retracts relative to the rear wheel support, and simultaneously drives the lower part of the frame to retract left and right, so that the frame is retracted bidirectionally.

Furthermore, the folding foot rest comprises a left foot rest and a right foot rest which are connected in a rotating mode, and when the frames on the two sides are folded left and right, the left foot rest and the right foot rest are folded backwards to form a V-shaped structure with a forward opening.

Furthermore, the front end and the rear end of the X-shaped folding support rod assembly are rotatably connected with the front steering joint and the rear steering joint, the front steering joint is rotatably connected with the lower end of the rear support rod through a transverse shaft, and the rear steering joint is rotatably connected with the sliding piece through a transverse shaft.

Further, the transverse connecting assembly also comprises a push handle folding assembly arranged between the push rods on the two sides. Preferably, the push handle folding assembly is of a three-section structure and comprises a left push handle, a right push handle and a middle push handle, the outer ends of the left push handle and the right push handle are respectively and rotatably connected with the upper parts of the upper push rods on the corresponding sides, and the left end and the right end of the middle push handle are respectively and rotatably connected with the inner ends of the left push handle and the right push handle.

Further, the lateral connection assembly further comprises a handrail folding assembly; the handrail folding component comprises two handrail side rods which are symmetrical left and right and folding handrail pieces, wherein the left end and the right end of the folding handrail piece are respectively connected with the two handrail side rods in a rotating way; the front part of the handrail side rod is rotationally connected with the lower push rod, the rear end of the handrail side rod is rotationally connected with the rear support rod, and the handrail side rod is positioned above the connecting rod. Preferably, the folding handrail member is formed by connecting a plurality of handrail sections which are connected end to end in a rotating way.

Further, the locking mechanism comprises a push rod locking mechanism arranged at the rotary connection position of the upper push rod and the lower push rod.

The utility model has the advantages that:

1. the utility model discloses design rear wheel support for sliding connection's last rear wheel support and lower rear wheel support, and constitute four-bar linkage between last push rod, lower push rod, back vaulting pole and the connecting rod, when last push rod and lower push rod take place relative rotation folding, under four-bar linkage's interlock effect, the rear wheel support slides the retraction relatively down and holds together in the drive, and then shortens the length of rear wheel support, is convenient for progress and reduces the front and back after whole car is folding to the distance.

2. The rear ends of the pedal folding component and the X-shaped folding stay bar component of the utility model are rotationally connected with the sliding part at the lower end of the upper rear wheel bracket, so that when the upper rear wheel bracket slides and retracts relative to the lower rear wheel bracket, the sliding part drives the pedal folding component and the rear end of the X-shaped folding stay bar component to move, and the lower part of the frame is driven to retract left and right when the front wheel bracket retracts relative to the rear wheel bracket; the frame of being convenient for of this design realizes two-way folding simultaneously, convenient operation, and is folding swift, labour saving and time saving.

3. The utility model discloses set up between last push rod and pushed away folding assembly, it is when being convenient for realize about the both sides frame to drawing in, has increased push rod transverse connection intensity on the both sides, has also been convenient for in addition whole car folding operation, when whole car is folding, removes locking mechanical system locking back, pushes down forward and pushes away folding assembly and can realize that the frame is folding.

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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a three-dimensional structure at a certain angle when the utility model is in use;

fig. 2 is a schematic perspective view of the utility model at another angle when in use;

FIG. 3 is a schematic side view of the utility model in use;

fig. 4 is a schematic perspective view of the present invention at an angle during the folding process (the armrest folding assembly is not shown);

fig. 5 is a schematic perspective view of the present invention at another angle during the folding process (the handrail folding assembly is not shown);

fig. 6 is a schematic side view of the folding handrail of the present invention (the handrail folding assembly is not shown);

fig. 7 is a schematic perspective view of the foldable handrail of the present invention in a folded state (the foldable handrail assembly is not shown).

Wherein: 1, a front wheel assembly;

2, a front wheel bracket;

3, a rear wheel assembly;

4, a rear wheel bracket; 4-1, arranging a rear wheel bracket; 4-1-1 chute; 4-2, mounting a rear wheel bracket; 4-2-1 sliders;

5 a push rod assembly; 5-1, pushing up a push rod; 5-2, pushing down the push rod;

6, a rear support rod;

7 connecting rods;

8, a pedal folding component; 8-1 stepping on side bars; 8-2 folding foot pedals; 8-2-1 left foot board; 8-2-2 right foot board;

a 9X-shaped folding brace bar assembly;

a front steering joint 10;

11 a rear steering knuckle;

12 a push handle folding assembly; 12-1 left push handle; 12-2, a right push handle; 12-3 middle push handle;

13 a handrail folding assembly; 13-1 handrail side lever; 13-2 folding handrail members.

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 7, a baby stroller capable of being folded in two directions comprises a stroller frame having an unfolded position and a folded position, and a locking mechanism for locking the stroller frame when the stroller frame is in the unfolded position, wherein the stroller frame comprises side stroller frames arranged in bilateral symmetry and a transverse connecting assembly arranged between the left and right side stroller frames and capable of being folded transversely, and the side stroller frames comprise a front wheel bracket 2 with a front wheel assembly 1 mounted at the bottom, a rear wheel bracket 4 with a rear wheel assembly 3 mounted at the bottom, a push rod assembly 5, a rear support rod 6 and a connecting rod 7; the push rod assembly 5 comprises an upper push rod 5-1 and a lower push rod 5-2 which is rotatably connected with the lower part of the upper push rod 5-1; the rear wheel bracket 4 comprises a lower rear wheel bracket 4-1 and an upper rear wheel bracket 4-2 which is connected with the lower rear wheel bracket 4-1 in a sliding way; the lower end of the lower push rod 5-2 is rotatably connected with the upper end of the upper rear wheel bracket 4-2; the upper end of the rear support rod 6 is rotatably connected with the lower end of the upper push rod 5-1, and the lower end of the rear support rod 6 is rotatably connected with the upper part of the lower rear wheel bracket 4-1; the upper end of the front wheel bracket 2 is rotationally connected with the lower end of the rear stay bar 6 and/or the upper part of the lower rear wheel bracket 4-1; the front end of the connecting rod 7 is rotationally connected with the lower part of the lower push rod 5-2, and the rear end of the connecting rod 7 is rotationally connected with the rear support rod 6; and a four-bar structure is formed among the upper push rod 5-1, the lower push rod 5-2, the rear stay bar 6 and the connecting bar 7.

In this embodiment, the transverse connecting assembly includes a pedal folding assembly 8 and an X-shaped folding stay bar assembly 9. The pedal folding assembly 8 is U-shaped with a backward opening, and comprises two pedal side rods 8-1 which are bilaterally symmetrical and a folding pedal 8-2 of which the left end and the right end are respectively rotatably connected with the front ends of the two pedal side rods 8-1, and the front part of the pedal side rod 8-1 is rotatably connected with the front wheel bracket 2; the folding foot pedal 8-2 comprises a left foot pedal 8-2-1 and a right foot pedal 8-2-2 which are connected in a rotating mode, and when the frames on the two sides are folded left and right, the left foot pedal 8-2-1 and the right foot pedal 8-2-2 are folded backwards to form a V shape with a front opening. The front part of the X-shaped folding stay bar component 9 is movably connected with the lower end of the rear stay bar 6 through a front steering joint 10; the upper rear wheel support 4-2 is inserted into the lower rear wheel support 4-1, a sliding groove 4-1-1 is formed in the side wall of the lower rear wheel support 4-1, a sliding piece 4-2-1 which extends out of the sliding groove 4-1-1 and is in sliding fit with the sliding groove 4-1-1 is arranged at the lower end of the upper rear wheel support 4-2, the rear end of the pedal side lever 8-1 is rotatably connected with the sliding piece 4-2-1 on the corresponding side, and the rear end of the X-shaped folding support rod assembly 9 is movably connected with the sliding piece 4-2-1 through a rear steering joint 11.

In this embodiment, the front end and the rear end of the X-shaped folding stay bar assembly 9 are rotatably connected to the front steering joint 10 and the rear steering joint 11, the front steering joint 10 is rotatably connected to the lower end of the rear stay bar 6 through a transverse shaft, and the rear steering joint 11 is rotatably connected to the sliding member 4-2-1 through a transverse shaft.

In this embodiment, the transverse connection assembly further comprises a push handle folding assembly 12 arranged between the push rods 5-1 on both sides. The push handle folding component 12 is preferably of a three-section structure and comprises a left push handle 12-1, a right push handle 12-2 and a middle push handle 12-3, the outer ends of the left push handle 12-1 and the right push handle 12-2 are respectively and rotatably connected with the upper part of the upper push rod 5-1 on the corresponding side, and the left end and the right end of the middle push handle 12-3 are respectively and rotatably connected with the inner ends of the left push handle 12-1 and the right push handle 12-2. The arrangement of the push handle folding assembly 12 is convenient for realizing the left-right furling of the frames at two sides, simultaneously increases the transverse connection strength of the push rods 5-1 at two sides, is also convenient for the folding operation of the whole vehicle, and when the whole vehicle is folded, the push handle folding assembly is pressed forwards and downwards to realize the folding of the frames after the locking of the locking mechanism is released.

In this embodiment, the lateral connection assembly further comprises a handrail folding assembly 13; the handrail folding component 13 comprises two handrail side rods 13-1 which are symmetrical left and right, and a folding handrail piece 13-2 of which the left end and the right end are respectively connected with the two handrail side rods 13-1 in a rotating way; the front part of the handrail side rod 13-1 is rotationally connected with the lower push rod 5-2, the rear end of the handrail side rod 13-1 is rotationally connected with the rear support rod 6, and the handrail side rod 13-1 is positioned above the connecting rod 7. The folding handrail member 13-2 is preferably formed by connecting a plurality of handrail segments which are connected end to end in a rotating manner. The arrangement of the handrail folding component 13 is convenient for realizing the left and right folding of the frames at two sides, simultaneously increases the transverse connection strength of the push rods 5-1 at two sides, and can realize the automatic turning and folding under the linkage action of a four-bar linkage structure when the whole vehicle is folded.

In the embodiment, the locking mechanism comprises a push rod locking mechanism arranged at the rotary connection part of the upper push rod 5-1 and the lower push rod 5-2, and an unlocking structure of the push rod locking mechanism is arranged on the middle push handle 12-3 of the push handle folding assembly 12, so that the operation with one hand is convenient, and the time and the labor are saved; and the operating position is higher, need not to bend over during the operation, the simple operation.

The utility model discloses a folding principle does:

when the whole vehicle is folded, after the locking mechanism is unlocked, the push handle folding component 12 is pressed forwards and downwards, the push handle folding component 12 is folded downwards and drives the upper push rods 5-1 at the two sides to be folded left and right, and simultaneously the upper push rod 5-1 and the lower push rod 5-2 are relatively rotated and folded, under the linkage action of the four-bar linkage structure, the upper push rod 5-1, the lower push rod 5-2, the rear stay bar 6 and the connecting bar 7 are relatively folded, simultaneously drives the upper rear wheel bracket 4-2 to slide and retract relative to the lower rear wheel bracket 4-1, the upper rear wheel bracket 4-2 drives the pedal folding component 8 and the rear end of the X-shaped folding support rod component 9 to move through the sliding component 4-2-1, the front wheel bracket 2 is folded relative to the rear wheel bracket 4, and simultaneously drives the lower part of the frame to be folded left and right, and finally the frame is folded in two directions.

The utility model discloses design rear wheel support 4 as sliding connection's last rear wheel support 4-2 and lower rear wheel support 4-1, when last push rod 5-1 and lower push rod 5-2 take place to rotate relatively folding, under four-bar linkage structure's interlock, drive the relative rear wheel support 4-1 of lower rear wheel support 4-2 and slide and draw together, and then shorten rear wheel support 4's length, be convenient for progress and reduce the fore-and-aft distance after whole car is folding.

The utility model discloses the rear end of well step folding assembly 8 and the folding vaulting pole subassembly of X type 9 is rotated with slider 4-2-1 of last rear wheel support 4-2 lower extreme and is connected, consequently when the relative rear wheel support 4-1 slip of back wheel support 4-2 down of last rear wheel support 4-2 was drawn together, through slider 4-2-1, step folding assembly 8 and the linkage effect of the folding vaulting pole subassembly of X type 9, realize that the frame lower part is two-way to draw in, convenient operation, it is folding swift, labour saving and time saving.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. In addition to the above embodiments, other embodiments of the present invention are also possible. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention as claimed.

Claims

1. The utility model provides a baby's shallow that can two-wayly fold, is including the frame that has expansion position and folding position and be used for locking the locking mechanical system to the frame when the frame is in expansion position, the frame includes the side frame that bilateral symmetry set up and sets up between the side frame of controlling and can transversely draw in the transverse connection subassembly, the side frame includes that front wheel support (2) that the front wheel subassembly (1) was installed to the bottom, rear wheel support (4) and push rod assembly (5) that rear wheel subassembly (3) were installed to the bottom, its characterized in that: the side support also comprises a rear support rod (6) and a connecting rod (7); the push rod assembly (5) comprises an upper push rod (5-1) and a lower push rod (5-2) which is rotatably connected with the lower part of the upper push rod (5-1); the rear wheel bracket (4) comprises a lower rear wheel bracket (4-1) and an upper rear wheel bracket (4-2) which is connected with the lower rear wheel bracket (4-1) in a sliding way; the lower end of the lower push rod (5-2) is rotatably connected with the upper end of the upper rear wheel bracket (4-2); the upper end of the rear support rod (6) is rotatably connected with the lower end of the upper push rod (5-1), and the lower end of the rear support rod (6) is rotatably connected with the upper part of the lower rear wheel bracket (4-1); the upper end of the front wheel bracket (2) is rotatably connected with the lower end of the rear stay bar (6) and/or the upper part of the lower rear wheel bracket (4-1); the front end of the connecting rod (7) is rotationally connected with the lower part of the lower push rod (5-2), and the rear end of the connecting rod (7) is rotationally connected with the rear support rod (6); a four-bar linkage structure is formed among the upper push rod (5-1), the lower push rod (5-2), the rear support rod (6) and the connecting rod (7), and when the upper push rod (5-1) and the lower push rod (5-2) rotate and fold relatively, the upper rear wheel support (4-2) is driven to slide and retract relative to the lower rear wheel support (4-1) under the linkage effect of the four-bar linkage structure, so that the length of the rear wheel support (4) is shortened.

2. A bi-directionally collapsible stroller as recited in claim 1, further comprising: the transverse connecting assembly comprises a pedal folding assembly (8) and an X-shaped folding stay bar assembly (9); the pedal folding assembly (8) is U-shaped with a backward opening and comprises two pedal side rods (8-1) which are bilaterally symmetrical and a folding pedal (8-2) with the left end and the right end respectively rotatably connected with the front ends of the two pedal side rods (8-1), and the front part of each pedal side rod (8-1) is rotatably connected with the front wheel bracket (2); the front part of the X-shaped folding support rod assembly (9) is movably connected with the lower end of the rear support rod (6) through a front steering joint (10); the upper rear wheel support (4-2) is inserted into the lower rear wheel support (4-1), a sliding groove (4-1-1) is formed in the side wall of the lower rear wheel support (4-1), a sliding piece (4-2-1) which extends out of the sliding groove (4-1-1) and is in sliding fit with the sliding groove (4-1-1) is arranged at the lower end of the upper rear wheel support (4-2), the rear end of the pedal side lever (8-1) is rotatably connected with the sliding piece (4-2-1) on the corresponding side, and the rear end of the X-shaped folding supporting rod assembly (9) is movably connected with the sliding piece (4-2-1) through a rear steering joint (11); when the upper rear wheel support (4-2) slides and retracts relative to the lower rear wheel support (4-1), the sliding part (4-2-1) drives the pedal folding component (8) and the rear end of the X-shaped folding support rod component (9) to move, and the lower part of the frame is driven to retract left and right while the front wheel support (2) retracts relative to the rear wheel support (4), so that the frame is retracted bidirectionally.

3. A bi-directionally collapsible stroller as recited in claim 2, further comprising: the folding foot pedal (8-2) comprises a left foot pedal (8-2-1) and a right foot pedal (8-2-2) which are connected in a rotating mode, and when the frames on the two sides are folded left and right, the left foot pedal (8-2-1) and the right foot pedal (8-2-2) are folded backwards to be folded into a V shape with a forward opening.

4. A bi-directionally collapsible stroller as recited in claim 2, further comprising: the front end and the rear end of the X-shaped folding support rod assembly (9) are rotatably connected with the front steering joint (10) and the rear steering joint (11), the front steering joint (10) is rotatably connected with the lower end of the rear support rod (6) through a transverse shaft, and the rear steering joint (11) is rotatably connected with the sliding piece (4-2-1) through a transverse shaft.

5. A bi-directionally collapsible stroller as recited in claim 2, further comprising: the transverse connecting assembly also comprises a push handle folding assembly (12) arranged between the push rods (5-1) on the two sides.

6. A bi-directionally collapsible stroller as recited in claim 5, further comprising: the push handle folding assembly (12) is of a three-section structure and comprises a left push handle (12-1), a right push handle (12-2) and a middle push handle (12-3), the outer ends of the left push handle (12-1) and the right push handle (12-2) are respectively and rotatably connected with the upper parts of the upper push rods (5-1) on the corresponding sides, and the left end and the right end of the middle push handle (12-3) are respectively and rotatably connected with the inner ends of the left push handle (12-1) and the right push handle (12-2).

7. A bi-directionally collapsible stroller as recited in claim 2, further comprising: the transverse connection assembly further comprises a handrail folding assembly (13); the handrail folding component (13) comprises two handrail side rods (13-1) which are symmetrical left and right, and folding handrail pieces (13-2) of which the left end and the right end are respectively connected with the two handrail side rods (13-1) in a rotating way; the front part of the handrail side rod (13-1) is rotationally connected with the lower push rod (5-2), the rear end of the handrail side rod (13-1) is rotationally connected with the rear support rod (6), and the handrail side rod (13-1) is positioned above the connecting rod (7).

8. A bi-directionally collapsible stroller as recited in claim 7, further comprising: the folding handrail piece (13-2) is formed by connecting a plurality of handrail sections which are connected end to end in a rotating way.

9. A bi-directionally collapsible stroller as recited in claim 1, further comprising: the locking mechanism comprises a push rod locking mechanism arranged at the rotary connection part of the upper push rod (5-1) and the lower push rod (5-2).