CN220298583U - Foldable baby carriage frame - Google Patents

Abstract

The utility model relates to the technical field of strollers, in particular to a foldable stroller frame. The novel seat comprises a pushing handle, wherein a first connecting piece is arranged at the tail end of the pushing handle, a first connecting rod is hinged to the first connecting piece, a sleeve piece is arranged on the first connecting rod, the sleeve piece is slidably sleeved on the first connecting rod, a second connecting piece is fixedly connected to the bottom end of the first connecting rod, a rear leg is hinged to the second connecting piece, a third connecting piece is arranged at the top end of the rear leg, a second connecting rod is hinged to the third connecting piece, one end of the second connecting rod is hinged to the third connecting piece, the other end of the second connecting rod is hinged to the sleeve piece, a seat side supporting rod is hinged to the second connecting piece, a front leg is hinged to the seat side supporting rod, a front wheel is arranged at the bottom end of the front leg, and the top end of the front leg is hinged to the front leg connecting part of the third connecting piece. The utility model has the beneficial effects that: the baby carriage part self gravity is adopted in the scheme to achieve automatic folding, and the baby carriage is simple in structure and convenient to use.

Description

Foldable baby carriage frame

Technical Field

The utility model relates to the technical field of strollers, in particular to a foldable stroller frame.

Background

The existing architecture mode is mainly assisted by a tension spring or a torsion spring to realize automatic vehicle collection, and the tension spring or the torsion spring has the risk of failure after long-time and forceful operation. And the existing baby stroller frame has a complex vehicle collecting mode, so that a user cannot easily operate the baby stroller frame.

Therefore, it is necessary to design a cart frame which can be folded by one hand without the aid of a tension spring or a torsion spring.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings of the prior art and provide a foldable baby carriage frame.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a collapsible perambulator frame, it includes pushing away handle 1 of U type structure, is provided with first connecting piece 2 on pushing away the U type end of handle 1, and first connecting piece 2 articulates through first pin joint 101 has head rod 3, be provided with external member 31 on the head rod 3, external member 31 slidable sleeve is established on head rod 3, the bottom fixedly connected with second connecting piece 4 of head rod 3, second connecting piece 4 articulates through second pin joint 102 has rear leg 5, and rear wheel 51 is installed to the bottom of rear leg 5, and third connecting piece 6 is installed on the top of rear leg 5, second connecting rod 7 is articulated through third pin joint 103 on the third connecting piece 6, the one end of second connecting rod 7 articulates on third connecting piece 6, and the other end articulates on external member 31 through fourth pin joint 104, seat side bracing piece 8 articulates through fifth pin joint 105 has seat side bracing piece 8, seat side bracing piece 8 articulates through sixth pin joint 106 has front leg 9, front leg 9 is installed on the top of front leg 9 through third pin joint 107, front leg 9 is installed on the front leg 9 is connected through third pin joint 107.

A handrail 10 is also mounted on the third connecting piece 6.

A plurality of seat main supporting rods 81 are also arranged on the seat side supporting rods 8.

The second hinge point 102 is provided in the middle upper part of the rear leg 5 and the rear leg 5 is provided outside the second connecting piece 4.

A plurality of limiting grooves 42 are formed in the inner side face of the second connecting piece 4.

The foldable baby carriage frame further comprises a backrest frame 11 and a sleeper frame 12 which are of U-shaped structures, and U-shaped tail ends of the backrest frame 11 and the sleeper frame 12 are hinged to the second connecting piece 4 through second hinge points 102.

The foldable stroller frame further includes an extension bracket 82 hinged to the front end of the seat side support bar 8.

The foldable stroller frame further comprises a foot pedal 92 arranged between the two front legs 9.

The foldable stroller frame further comprises a rear axle 52 arranged between the two rear wheels 51.

The first connecting piece 2, the second connecting piece 4 and the third connecting piece 6 are provided with gear locking devices.

After the technical scheme is adopted, the utility model has the beneficial effects that: the baby carriage part self gravity is adopted in the scheme to achieve automatic folding, and the baby carriage is simple in structure and convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic side elevational view of a foldable stroller frame of the present utility model in an unfolded state.

Fig. 2 is a schematic view showing an unfolded state structure of the foldable stroller frame of the present utility model.

FIG. 3 is a schematic view showing the unfolded state of the foldable stroller frame of the present utility model.

Fig. 4 is an enlarged view of the S portion in fig. 3.

Fig. 5 is an enlarged view of the R portion in fig. 3.

Fig. 6 is a schematic structural view of the third connector and the front leg of the present utility model.

Fig. 7 is a schematic view of the positions of the various hinge points in the present utility model.

Fig. 8 is a schematic illustration of the folding process of the present utility model.

Fig. 9 is a schematic illustration of the folding process of the present utility model.

Fig. 10 is a schematic illustration of the folding process of the present utility model.

Fig. 11 is a drawing showing the state of the utility model.

Reference numerals illustrate: push handle 1, first link 2, first hinge point 101, first link rod 3, sleeve 31, second link 4, limit groove 42, second hinge point 102, rear leg 5, rear wheel 51, rear axle 52, third link 6, front leg link 61, third hinge point 103, second link rod 7, fourth hinge point 104, fifth hinge point 105, seat side support bar 8, seat main support bar 81, extension bracket 82, sixth hinge point 106, front leg 9, front wheel 91, footrest 92, armrest 10, seventh hinge point 107, back rest 11, sleeve 111, limit lever 112, sleeper 12.

Detailed Description

Referring to fig. 1 to 7, the technical scheme adopted in this embodiment is as follows: the utility model provides a collapsible perambulator frame, it includes pushing away handle 1 of U type structure, is provided with first connecting piece 2 on pushing away the U type end of handle 1, and first connecting piece 2 is articulated to have head rod 3 through first pin joint 101, see the illustration of fig. 4, is provided with external member 31 on the head rod 3, and external member 31 slidable sleeve is established on head rod 3, and head rod 3's bottom fixedly connected with second connecting piece 4, second connecting piece 4 are articulated to have back leg 5 through second pin joint 102, second pin joint 102 sets up the well upper portion at back leg 5, and back leg 5 sets up the outside at second connecting piece 4, and rear wheel 51 is installed to back leg 5's bottom, and third connecting piece 6 is installed on back leg 5's top.

The third connecting piece 6 is hinged with a second connecting rod 7 through a third hinging point 103, one end of the second connecting rod 7 is hinged with the third connecting piece 6, and the other end is hinged with the sleeve 31 through a fourth hinging point 104.

The second connecting piece 4 is hinged with a seat side supporting rod 8 through a fifth hinging point 105, a plurality of seat main supporting rods 81 are further installed on the seat side supporting rod 8, two ends of each seat main supporting rod 81 are respectively and fixedly installed on the corresponding seat side supporting rod 8, two seat side supporting rods 8 and the plurality of seat main supporting rods 81 form a seat assembly, and the seat assembly is used for supporting a cushion part of the baby carriage.

The seat side support bar 8 is hinged with the front leg 9 through a sixth hinging point 106, the bottom end of the front leg 9 is provided with a front wheel 91, the front wheel 91 is a universal wheel, and the top end of the front leg 9 is hinged on the front leg connecting part 61 of the third connecting piece 6 through a seventh hinging point 107. The third connecting piece 6 is also provided with a U-shaped handrail 10, and the handrail 10 is used for the infant to grasp and prevent the infant from falling from the baby carriage.

The first connecting piece 2, the second connecting piece 4 and the third connecting piece 6 are all provided with gear locking devices, and the gear locking devices can lock corresponding parts in the unfolded state of the frame.

The foldable baby carriage frame further comprises a backrest frame 11 and a sleeper frame 12 which are of U-shaped structures, and U-shaped tail ends of the backrest frame 11 and the sleeper frame 12 are hinged to the second connecting piece 4 through second hinge points 102.

The inner side surface of the second connecting piece 4 is provided with a plurality of limit grooves 42, the position, close to the bottom, of the backrest frame 11 corresponding to the limit grooves 42 is provided with a sleeve 111 capable of sliding up and down, the position, corresponding to the limit grooves 42, of the sleeve 111 is provided with a limit rod 112, the limit rod 112 is clamped in the limit groove 42, the sleeve 111 is slid upwards, the limit rod 112 is separated from the limit of the limit groove, the back inclination angle of the backrest frame 11 is adjusted, the sleeve 111 is fallen down after the back inclination angle of the backrest frame 11 is determined, the limit rod 112 falls into the corresponding limit groove 42, and at the moment, the backrest frame 11 is fixed.

The foldable stroller frame further includes an extension bracket 82 hinged to the front end of the seat side support bar 8, the extension bracket 82 being adapted to extend the extended flat space when the infant is asleep.

The foldable stroller frame further comprises a foot rest 92 arranged between the two front legs 9, wherein the foot rest 92 is used for placing feet when the baby sits, so that comfort and safety are improved.

The foldable stroller frame further comprises a rear axle 52 arranged between the two rear wheels 51, the arrangement of the rear axle 52 increasing the stability of the two rear wheels.

Referring to fig. 7 to 11 in combination, when the locking device on the first connector 2 is opened in the state of fig. 7, the push handle 1 is pushed forward as shown in fig. 8, the push handle 1 rotates around the first hinge point 101, when the push handle 1 is pushed forward beyond the position right above the first connector 2, the push handle 1 automatically reaches the position shown in fig. 9 under the action of gravity, the locking device on the second connector 4 is opened while reaching the position of fig. 9, the second connector 4 rotates around the second hinge point 102, at this time, the first connector 3 and the backrest frame 11 are folded towards the rear leg 4 under the action of self gravity, the sleeve member 31 slides on the first connector 3 towards the second connector 4, one end of the second connecting rod 7 rotates around the fourth hinging point 104, the other end rotates around the third hinging point 103, as shown in fig. 10, the second connecting piece 4 rotates around the second hinging point 102 and drives the fifth hinging point 105 to move upwards, so that the front supporting leg 6 is driven to approach towards the rear leg 4, the seat side supporting rod 8 rotates around the sixth hinging point 106 and is changed from the original transverse direction to the vertical direction, the front supporting leg 6 rotates around the seventh hinging point 107 to enable the front wheel 61 to approach the rear leg 4, the position of fig. 11 is reached, folding is completed, and the reverse operation is completed when the seat side supporting rod is opened.

After the technical scheme is adopted, the utility model has the beneficial effects that: the baby carriage part self gravity is adopted in the scheme to achieve automatic folding, and the baby carriage is simple in structure and convenient to use.

The foregoing is merely illustrative of the present utility model and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present utility model.

Claims (10)

1. A foldable baby carriage frame is characterized in that a push handle (1) with a U-shaped structure is included, a first connecting piece (2) is arranged at the tail end of the U-shaped end of the push handle (1), the first connecting piece (2) is hinged with a first connecting rod (3) through a first hinge point (101), a sleeve piece (31) is arranged on the first connecting rod (3), the sleeve piece (31) is slidably sleeved on the first connecting rod (3), the bottom end of the first connecting rod (3) is fixedly connected with a second connecting piece (4), the second connecting piece (4) is hinged with a rear leg (5) through a second hinge point (102), a rear wheel (51) is arranged at the bottom end of the rear leg (5), a third connecting piece (6) is arranged at the top end of the rear leg (5), a second connecting rod (7) is hinged with the third hinge point (103), one end of the second connecting rod (7) is hinged with the third connecting piece (6), the other end of the second connecting rod is hinged with the fourth hinge point (104) on the third connecting piece (6), the other end of the second connecting rod is hinged with the fifth connecting piece (9) through a hinge point (9), the front leg (9) is hinged with the front leg (9) through the fourth hinge point (9), the top ends of the front legs (9) are hinged on the front leg connecting parts (61) of the third connecting piece (6) through seventh hinging points (107).

2. A foldable stroller frame according to claim 1, wherein: the second hinge point (102) is arranged at the middle upper part of the rear leg (5), and the rear leg (5) is arranged at the outer side of the second connecting piece (4).

3. A foldable stroller frame according to claim 1, wherein: and a plurality of limiting grooves (42) are formed in the inner side surface of the second connecting piece (4).

4. A foldable stroller frame according to claim 1, wherein: and a plurality of seat main supporting rods (81) are also arranged on the seat side supporting rods (8).

5. A foldable stroller frame according to claim 1, wherein: and the third connecting piece (6) is also provided with a handrail (10).

6. A foldable stroller frame according to claim 1, wherein: the foldable baby carriage frame further comprises a backrest frame (11) and a sleeper frame (12) which are of U-shaped structures, and U-shaped tail ends of the backrest frame (11) and the sleeper frame (12) are hinged to the second connecting piece (4) through second hinge points (102).

7. A foldable stroller frame according to claim 1, wherein: the foldable stroller frame further comprises an extension pallet (82) hinged to the front end of the seat side support bar (8).

8. A foldable stroller frame according to claim 1, wherein: the foldable stroller frame further comprises a foot pedal (92) arranged between the two front legs (9).

9. A foldable stroller frame according to claim 1, wherein: the foldable stroller frame further comprises a rear axle (52) arranged between the two rear wheels (51).

10. A foldable stroller frame according to claim 1, wherein: the first connecting piece (2), the second connecting piece (4) and the third connecting piece (6) are respectively provided with a gear locking device.