CN108839703B - Folding baby carriage - Google Patents

Folding baby carriage Download PDF

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Publication number
CN108839703B
CN108839703B CN201810715653.6A CN201810715653A CN108839703B CN 108839703 B CN108839703 B CN 108839703B CN 201810715653 A CN201810715653 A CN 201810715653A CN 108839703 B CN108839703 B CN 108839703B
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China
Prior art keywords
rod
folding
chassis
assembly
driving
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Active
Application number
CN201810715653.6A
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Chinese (zh)
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CN108839703A (en
Inventor
刘伟
张孟
闫德锋
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Goodbaby Child Products Co Ltd
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Goodbaby Child Products Co Ltd
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Priority to CN201810715653.6A priority Critical patent/CN108839703B/en
Publication of CN108839703A publication Critical patent/CN108839703A/en
Application granted granted Critical
Publication of CN108839703B publication Critical patent/CN108839703B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/12Collapsible wheels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

The invention discloses a folding child stroller, wherein a stroller frame comprises a chassis, a bottom rod assembly, wheels, a folding support frame assembly and a wheel opening mechanism, wherein the bottom rod assembly is arranged on a central axis along the front and rear direction and is pivotally connected to the chassis, the wheels are respectively connected to the front and rear ends of the bottom rod assembly, the folding support frame assembly is connected between a push rod and the chassis, the wheel opening mechanism is arranged between the folding support frame assembly and the bottom rod assembly, and in the transition process of the folding support frame assembly from a folding state to an opening state, the wheel opening mechanism drives the bottom rod assembly to rotate so as to enable the wheels to be opened relative to the chassis; a wheel folding mechanism is arranged between the folding support frame assembly or the chassis and the bottom rod assembly, and in the transition process of the folding support frame assembly from the unfolded state to the folded state, the wheel folding mechanism drives the bottom rod assembly to rotate so that the wheels are close to the chassis. The folding child cart can be opened or folded by only one operation, and is very simple and quick.

Description

Folding baby carriage
Technical Field
The invention relates to a folding child stroller.
Background
The folding child cart is a very convenient child walker. The folding is convenient, the volume is small after folding and easy to store, and the folding baby carriage is a use requirement of consumers for folding baby carriages. The foldable stroller in the prior art generally comprises a foldable frame, wheels arranged below the frame, a locking device capable of locking the frame in an open state, and a seat pocket arranged on the frame and used for taking a baby. In order to enable the folded volume to be smaller, wheels of some folding child carts can participate in folding, and the wheels are folded inwards when the folding child carts are folded, so that the whole cart is flatter after being folded. Then the existing wheels can participate in the folding cart, and the folding and the unfolding of the wheels are operated in a single step, so that the folding and the unfolding of the whole cart can be completed in at least two steps, and the folding and the unfolding of the whole cart are not simple and quick enough.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a folding stroller.
In order to achieve the above purpose, the invention adopts the following technical scheme: a folding stroller includes a frame having at least two operative states and a locking mechanism for locking the frame in a first operative state. The frame comprises a push rod, a chassis, a bottom rod assembly, wheels, a folding support frame assembly and a support frame assembly, wherein the central axis of the bottom rod assembly extends along the front and rear directions and is rotationally arranged on the chassis;
a wheel opening mechanism is arranged between the folding support frame assembly and the bottom rod assembly, and drives the bottom rod assembly to rotate to enable the wheels to be opened relative to the chassis in the transition process of the folding support frame assembly from the folding state to the opening state; a wheel folding mechanism is arranged between the folding support frame assembly or the chassis and the bottom rod assembly, and in the transition process of the folding support frame assembly from the unfolded state to the folded state, the wheel folding mechanism drives the bottom rod assembly to rotate so that the wheels are close to the chassis.
Further, the folding bracket assembly includes a driving lever whose lower portion is rotatably connected to the chassis, the wheel opening mechanism includes a driving surface provided on the bottom lever assembly and slidably contacting and disengageable from the driving lever, the driving lever is disengaged from the driving surface when the folding bracket assembly is in the folded state, the driving lever slidably contacts the driving surface in a transition process from the folded state to the unfolded state, and the driving lever abuts against the driving surface when the folding bracket assembly is in the unfolded state.
Further, the lower part of the driving rod is rotatably connected with the rear part of the chassis, the driving surface is arranged at the rear part of the bottom rod assembly and comprises a slope which can be slidably contacted with and separated from the driving rod, and a resisting surface which is connected with and can be detachably abutted against the driving rod.
Further, the lower part of the driving rod is rotatably connected with the front part of the chassis, the driving surface is arranged at the front part of the bottom rod assembly, and the driving surface is a cylindrical surface.
Further, the wheel folding mechanism is disposed between the chassis and the bottom bar assembly, and the wheel folding mechanism includes a torsion spring disposed between the chassis and the bottom bar assembly that applies a force to the bottom bar assembly to rotate and draw the wheel toward the chassis.
Further, the folding bracket assembly comprises a lower sliding sleeve which can be connected on the chassis in a front-back sliding way, a front supporting rod, the lower part of which is rotationally connected with the lower sliding sleeve, and the upper part of which is rotationally connected with the lower part of the push rod.
Still further, folding strut subassembly still includes that the lower part is connected with the rear portion of chassis and rotates the actuating lever that is connected, upper portion and push rod are connected and the lower part is connected with the upper portion of actuating lever and rotate the connecting rod, rotate the last sliding sleeve of connecting on the connecting rod, with last sliding sleeve sliding connection and rear portion and preceding vaulting pole are connected, actuating lever and preceding vaulting pole are connected in rotation.
Further, the wheel folding mechanism is arranged between the folding support frame assembly and the bottom rod assembly, the wheel folding mechanism comprises a pair of spiral inclined planes which are respectively arranged on the lower sliding sleeve and the bottom rod assembly, the lower sliding sleeve and the bottom rod assembly are in slidable and detachable contact through the spiral inclined planes, when the folding support frame assembly is in an open state, the lower sliding sleeve is detached from the bottom rod assembly, and when the folding support frame assembly is in a transition process from the open state to the folding state, the lower sliding sleeve and the bottom rod assembly are in slidable contact through the spiral inclined planes, and the bottom rod assembly rotates and enables the wheels to be close to the chassis.
Further, the bottom bar assembly comprises a front bar, a rear bar, the front portion of which is in sliding connection with the rear portion of the front bar, and the rear bar is in sliding telescopic connection with the chassis, the front end of the front bar and the rear end of the rear bar are respectively connected with wheels, when the frame is in a first working state, the rear bar slides backwards and stretches out relative to the chassis, and when the frame is in a second working state, the rear bar slides forwards and retracts relative to the chassis.
Further, the folding bracket assembly comprises a rear stay bar, the lower part of which is rotationally connected with the rear part of the chassis, and a rear connecting rod, the upper part of which is rotationally connected with the rear stay bar, and the lower part of which is rotationally connected with the rear stay bar.
Still further, folding strut subassembly still includes that upper portion and the lower part of push rod are connected with the lower part of push rod and the lower part is connected with the front portion of chassis and is rotated the actuating lever that is connected, lower part and the upper portion of back vaulting pole are connected with the connecting rod that the upper portion is connected with the push rod rotation, sliding connection are on the back vaulting pole upper sliding sleeve, and the actuating lever is rotated with upper sliding sleeve and is connected.
Further, the bottom rod assembly is arranged in the chassis in a penetrating way, and the front end and the rear end of the bottom rod assembly extend out of the chassis to be connected with the wheels.
Further, the folding bracket assembly comprises a driving rod, a front supporting rod, a connecting rod and an upper sliding sleeve, wherein the lower part of the driving rod is rotationally connected with the rear part of the chassis, the lower part of the front supporting rod is rotationally connected with the front part of the chassis, the upper part of the front supporting rod is rotationally connected with the lower part of the push rod, the upper part of the connecting rod is rotationally connected with the push rod, the lower part of the connecting rod is rotationally connected with the upper part of the driving rod, the upper sliding sleeve is slidingly connected with the driving rod, and the front supporting rod is rotationally connected with the upper sliding sleeve.
Further, the folding bracket assembly comprises a driving rod, a front supporting rod, a connecting rod and an upper sliding sleeve, wherein the lower part of the driving rod is rotationally connected with the rear part of the chassis, the lower part of the front supporting rod is rotationally connected with the front part of the chassis, the upper part of the front supporting rod is rotationally connected with the lower part of the push rod, the upper part of the connecting rod is rotationally connected with the push rod, the lower part of the connecting rod is rotationally connected with the upper part of the driving rod, the upper sliding sleeve is slidingly connected with the front supporting rod, and the driving rod is rotationally connected with the upper sliding sleeve.
Further, the folding bracket assembly comprises a driving rod, a front supporting rod, a connecting rod, an auxiliary driving rod and a front supporting rod, wherein the lower portion of the driving rod is rotationally connected with the rear portion of the chassis, the lower portion of the front supporting rod is rotationally connected with the front portion of the chassis, the upper portion of the front supporting rod is rotationally connected with the lower portion of the push rod, the connecting rod is rotationally connected with the upper portion of the push rod, the upper portion of the auxiliary driving rod is rotationally connected with the lower portion of the connecting rod, and the lower portion of the auxiliary driving rod is rotationally connected with the upper portion of the driving rod.
By adopting the technical scheme, when the folding child trolley is unfolded and folded, the wheels can be unfolded and folded together with the trolley frame under the action of the wheel unfolding mechanism and the wheel folding mechanism, and a single operation step is not needed to be used for unfolding or folding the wheels. Therefore, the whole car can be unfolded or folded by only one operation, and the folding device is very simple and quick. The frame structure of the folding child stroller is matched with the wheel opening mechanism and the wheel folding mechanism, so that the whole stroller is simple and compact in structure, easy to operate, flat after folding and very small in size.
Drawings
FIG. 1 is a schematic perspective view of a foldable stroller in an open configuration according to an embodiment of the present invention;
FIG. 2 is a schematic view of a bottom bar assembly of a folding stroller according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a foldable stroller in an open configuration according to an embodiment of the present invention;
fig. 4 is a schematic perspective view of a folding stroller in a folding process according to a first embodiment of the present invention;
FIG. 5 is a schematic side view of a folding stroller in a folding process according to an embodiment of the present invention;
FIG. 6 is a schematic perspective view of a foldable stroller in a first embodiment of the present invention;
FIG. 7 is a schematic side view of a foldable stroller in a first embodiment of the present invention;
FIG. 8 is a schematic view of a wheel opening mechanism of a folding stroller according to a first embodiment of the present invention, where the folding stroller is folded;
FIG. 9 is a schematic view of a wheel opening mechanism of a folding stroller in accordance with a first embodiment of the present invention, when the folding stroller is in an open position;
FIG. 10 is a schematic view of a wheel opening mechanism of a folding stroller according to a first embodiment of the present invention, wherein the folding stroller is unfolded;
FIG. 11 is a schematic view of a wheel folding mechanism for folding a stroller in accordance with an embodiment of the present invention;
fig. 12 is a schematic structural view of a wheel folding mechanism of a folding stroller according to a second embodiment of the present invention, where the folding stroller is folded;
FIG. 13 is a schematic view of a wheel folding mechanism of a folding stroller according to a second embodiment of the present invention, wherein the folding stroller is folded;
FIG. 14 is a schematic side view of a folding stroller in a folding process according to a third embodiment of the present invention;
FIG. 15 is a schematic side view of a foldable stroller in a folding process according to a fourth embodiment of the present invention;
FIG. 16 is a schematic side view of a folding stroller in a folding process according to a fifth embodiment of the present invention;
FIG. 17 is a schematic perspective view of a foldable stroller in a sixth embodiment of the present invention when unfolded;
FIG. 18 is a schematic side view of a foldable stroller in a sixth embodiment of the present invention
FIG. 19 is a schematic side view of a foldable stroller in a folding process according to a sixth embodiment of the present invention;
FIG. 20 is a schematic view showing a wheel opening mechanism of a folding stroller according to a sixth embodiment of the present invention, where the folding stroller is folded;
FIG. 21 is a schematic view of a wheel opening mechanism of a folding stroller in a sixth embodiment of the present invention, where the folding stroller is in an open position;
FIG. 22 is a schematic view showing a wheel opening mechanism of a folding stroller according to a sixth embodiment of the present invention, where the folding stroller is unfolded;
fig. 23 is a schematic cross-sectional view of a chassis and bottom bar assembly of a folding stroller in accordance with a sixth embodiment of the present invention.
The reference numerals in the figures are:
1. a push rod; 2. a front stay; 201. a bump; 202. a support surface; 3. a connecting rod; 4. a seat rod; 5. a sliding sleeve is arranged on the upper part; 6. a rear stay; 7. a lower sliding sleeve; 8. a chassis; 9. a bottom bar assembly; 901. a front rod; 902. a rear rod; 10. a wheel; 11. turning points; 12. an inclined plane; 13. a resisting surface; 14. a torsion spring; 15. a spiral inclined plane; 16. folding the bracket assembly; 17. an auxiliary rear stay bar; 18. a cylindrical surface; 19. a rear connecting rod; 20. a guide groove.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art.
Example 1
Referring to fig. 1 to 11, the folding stroller of the present embodiment includes a frame having at least two operative states, a locking mechanism for locking the frame in a first operative state, and a seat pocket coupled to the frame.
The frame comprises a push rod 1, a chassis 8, a bottom rod assembly 9, wheels 10 and a foldable support frame assembly 16, wherein the central axis of the bottom rod assembly 9 is arranged in the front-back direction and is connected to the chassis 8 in a pivot mode, the wheels 10 are respectively connected to the front end and the rear end of the bottom rod assembly 9, the foldable support frame assembly 16 is connected between the push rod 1 and the chassis 8, when the frame is in a first working state (namely, the foldable child cart is fully unfolded), the foldable support frame assembly 16 is in an unfolded state, the foldable support frame assembly 16 props up the push rod 1 to be far away from the chassis 8, the bottom rod assembly 9 rotates relative to the chassis 8 to enable the wheels 10 to be unfolded relative to the chassis 8, the rotation axes of the wheels 10 are parallel to the ground, and when the frame is in a second working state (namely, the foldable child cart is fully folded), the foldable support frame assembly 16 is in a folded state, the foldable support frame assembly 16 is folded towards the chassis 8 to drive the push rod 1 to be folded towards the chassis, and in this state, the foldable support frame assembly 16 is all close to the chassis 8, and the bottom rod assembly 9 rotates relative to the wheels 10 to be folded towards the chassis 8, and the rotation axes of the wheels 10 are perpendicular to the ground.
As shown in fig. 1 and 2, the bottom bar assembly 9 is a rigid bar member that is inserted into the chassis 8, and the front and rear ends of the bottom bar assembly 9 protrude from the chassis 8 to be rigidly connected to the wheels 10.
The folding bracket assembly 16 comprises a drive rod, the lower part of which is rotatably connected to the chassis 8, in this embodiment the chassis 8 is rotatably connected to the drive rod via a turning point 11. A wheel opening mechanism is arranged between the driving rod and the bottom rod assembly 9, and in the process of transition of the folding bracket assembly 16 from the folding state to the opening state, the wheel opening mechanism drives the bottom rod assembly 9 to rotate so as to enable the wheel 10 to outwards overturn and open relative to the chassis 8, and when the folding bracket assembly 16 is in the opening state, the wheel opening mechanism enables the wheel 10 to be kept in an opening position relative to the chassis 8; a wheel folding mechanism is arranged between the folding support frame assembly 16 or the chassis 8 and the bottom rod assembly 9, and in the process of transition of the folding support frame assembly 16 from the open state to the folding state, the wheel folding mechanism drives the bottom rod assembly 9 to rotate so as to enable the wheels 10 to inwards turn and be close to the chassis 8.
The folding bracket assembly 16 includes a driving rod whose lower portion is rotatably connected to the chassis 8, and the wheel opening mechanism includes a driving surface which is disposed on the bottom rod assembly 9 and slidably contacts with and is detachable from the driving rod, when the folding bracket assembly 16 is in the folded state, the driving rod is detached from the driving surface, and when the folding bracket assembly 16 is in the folded state, the driving rod slidably contacts with the driving surface, and when the folding bracket assembly 16 is in the unfolded state, the driving rod abuts against the driving surface.
In the present embodiment shown in fig. 1 and 8 to 10, the wheel opening mechanism is disposed near the rear wheel, the driving lever described above is the rear stay 6, the lower portion of the rear stay 6 is rotatably connected to the rear portion of the chassis 8, the driving surface described above is disposed at the rear portion of the bottom stay assembly 9 as shown in fig. 1 a, the driving surface includes a slope 12 disposed at the rear portion of the bottom stay assembly 9 and slidably contacting and disengaging the rear stay 6, a retaining surface 13 connected to the slope 12 and detachably abutting the rear stay 6, and when the folding stay assembly 16 is in the folded state, the rear stay 6 is disengaged from both the slope 12 and the retaining surface 13, and when the folding stay assembly 16 is in the folded state, the rear stay 6 is disengaged from the retaining surface 13 and slidably contacting the slope 12, and when the folding stay assembly 16 is in the unfolded state, the rear stay 6 is disengaged from the slope 12 and is abutted against the retaining surface 13.
In the present embodiment shown in fig. 4 and 11, the wheel folding mechanism is disposed between the chassis 8 and the bottom bar assembly 9 and is located near the front wheels, and as shown in fig. 4B, the wheel folding mechanism includes a torsion spring 14 disposed between the chassis 8 and the bottom bar assembly 9, the torsion spring 14 exerting a force on the bottom bar assembly 9 to rotate and draw the wheels 10 toward the chassis 8.
As shown in fig. 1 to 7, the folding bracket assembly 16 in this embodiment further includes a lower slide sleeve 7 slidably connected to the chassis 8 back and forth, a front stay 2 whose lower portion is rotatably connected to the lower slide sleeve 7 and whose upper portion is rotatably connected to the lower portion of the push rod 1, a connecting rod 3 whose upper portion is rotatably connected to the push rod 1 and whose lower portion is rotatably connected to the upper portion of the rear stay 6, an upper slide sleeve 5 rotatably connected to the connecting rod 3, a seat rod 4 slidably connected to the upper slide sleeve 5 and whose rear portion is rotatably connected to the front stay 2, and the rear stay 6 is rotatably connected to the front stay 2, the push rod 1, the connecting rod 3, the rear stay 6 and the front stay 2 constituting a four-bar mechanism, and the front stay 2, the rear stay 6, the chassis 8 and the lower slide sleeve 7 constituting a crank slider mechanism.
Working principle:
(1) when the folding cart is folded, the push rod 1 rotates forwards and downwards to drive the front stay bar 2 and the connecting rod 3 to rotate downwards, the upper sliding sleeve 5 slides backwards along the seat rod 4 while rotating on the connecting rod 3, the rear stay bar 6 (i.e. the driving rod) and the seat rod 4 rotate and draw close to the chassis 8 under the driving of the front stay bar 2 and the connecting rod 3, the lower sliding sleeve 7 slides forwards along the chassis 8 while rotating with the front stay bar 2 until all rod pieces draw close to the chassis 8, and the cart frame is completely folded. In the folding process of the frame, the bottom of the rear stay bar 6 is separated from the resisting surface 13 and the inclined surface 12 on the bottom bar assembly 9 due to the rotation of the rear stay bar, and the force given by the resisting surface 13 and the inclined surface 12 is lost, so that the bottom bar assembly 9 rotates relative to the chassis 8 under the action of the torsion spring 14, and the wheels 10 are driven to approach the chassis 8 until the folding of the whole vehicle is completed.
(2) When the push rod is opened, the operation process is opposite to the folding operation process, the push rod 1 is rotated upwards and backwards, the front supporting rod 2 and the connecting rod 3 are driven to rotate upwards, the upper sliding sleeve 5 slides forwards along the seat rod 4 while rotating, the rear supporting rod 6 and the seat rod 4 rotate and are opened relative to the chassis 8 under the driving of the front supporting rod 2 and the connecting rod 3, the lower sliding sleeve 7 slides backwards along the chassis 8 while rotating with the front supporting rod 2 until all rod pieces are opened relatively, and the frame is completely opened. In the process of opening the frame, the bottom of the rear stay bar 6 is in contact with the inclined surface 12 on the bottom bar assembly 9 and slides along the inclined surface 12 due to the rotation of the rear stay bar 6, the bottom bar assembly 9 is driven to rotate against the force of the torsion spring 14 under the pushing of the rear stay bar 6, the wheels 10 are driven to be opened relative to the chassis 8, and after the whole vehicle is opened, the bottom of the rear stay bar 6 slides onto the resisting surface 13 and is abutted against the resisting surface 13, so that the bottom bar assembly 9 and the wheels 10 are kept in the current state and cannot be folded due to the force of the torsion spring 14, and the whole vehicle is opened.
When the folding child cart is unfolded and folded, the wheels can be unfolded and folded along with the cart frame under the action of the wheel unfolding mechanism and the wheel folding mechanism, and the wheels do not need to be unfolded or folded by a single operation step. Therefore, the whole car can be unfolded or folded by only one operation, and the folding device is very simple and quick. The frame structure of the folding child stroller is matched with the wheel opening mechanism and the wheel folding mechanism, so that the whole stroller is simple and compact in structure, easy to operate, flat after folding and very small in size.
Example two
Referring to fig. 12 and 13, the folding child stroller in this embodiment is identical to the frame and wheel opening mechanism of the first embodiment, except for the wheel folding mechanism.
The wheel folding mechanism in this embodiment is disposed between the folding bracket assembly 16 and the bottom bar assembly 9. The wheel folding mechanism comprises a pair of helical ramps 15 provided on the lower slide sleeve 7 and the bottom bar assembly 9, respectively, preferably the helical ramps 15 on the bottom bar assembly 9 are provided at the front end of the bottom bar assembly 9. The lower sliding sleeve 7 is slidably and detachably contacted with the bottom rod assembly 9 through the spiral inclined surface 15, when the folding bracket assembly 16 is in the open state, the lower sliding sleeve 7 is separated from the bottom rod assembly 9, and when the folding bracket assembly 16 is in transition from the open state to the folding state, the lower sliding sleeve 7 is slidably contacted with the bottom rod assembly 9 through the spiral inclined surface 15, and the bottom rod assembly 9 is rotated and the wheels 10 are closed towards the chassis 8.
Working principle:
(1) the folding of the frame when folding the cart is the same as in the first embodiment and will not be described here. In the folding process of the frame, the bottom of the rear stay bar 6 (i.e. the driving rod) is separated from the resisting surface 13 and the inclined surface 12 on the bottom bar assembly 9 due to the rotation of the rear stay bar 6, the lower sliding sleeve 7 slides forwards to enable the lower sliding sleeve 7 to be in contact with the front part of the bottom bar assembly 9 through the spiral inclined surface 15, and the bottom bar assembly 9 is pushed to rotate under the action of the spiral inclined surface 15 along with the continuing forward sliding of the lower sliding sleeve 7, so that the wheels 10 are driven to be close to the chassis 8 until the folding of the whole frame is completed.
(2) When the cart is opened, the frame is opened as in the first embodiment. In the process of opening the cart, as the lower sliding sleeve 7 slides backwards, the lower sliding sleeve is separated from the bottom rod assembly 9, meanwhile, the bottom of the lower sliding sleeve is contacted with the inclined surface 12 on the bottom rod assembly 9 and slides along the inclined surface 12 due to the rotation of the rear supporting rod 6, the bottom rod assembly 9 is driven to rotate under the pushing of the rear supporting rod 6 to drive the wheels 10 to open relative to the chassis 8, and after the whole cart is opened, the bottom of the rear supporting rod 6 slides onto the resisting surface 13 and abuts against the resisting surface 13, so that the bottom rod assembly 9 and the wheels 10 are kept in the current state, and the whole cart is opened.
Example III
Referring to fig. 14, the folding child stroller in this embodiment is identical to the wheel opening mechanism and the wheel folding mechanism of the first embodiment, except for the configuration of the folding bracket assembly 16 in the frame.
The folding bracket assembly 16 in this embodiment includes a rear stay 6 (i.e., a driving rod) whose lower portion is rotatably connected with the rear portion of the chassis 8, a front stay 2 whose lower portion is rotatably connected with the front portion of the chassis 8 and whose upper portion is rotatably connected with the lower portion of the push rod 1, a connecting rod 3 whose upper portion is rotatably connected with the push rod 1 and whose lower portion is rotatably connected with the upper portion of the rear stay 6, an upper slide sleeve 5 slidably connected with the rear stay 6, the front stay 2 is rotatably connected with the upper slide sleeve 5, the push rod 1, the connecting rod 3, the front stay 2, the rear stay 6 and the upper slide sleeve 5 constitute a crank slider mechanism, and the front stay 2, the rear stay 6, the chassis 8 and the upper slide sleeve 5 constitute a crank slider mechanism.
Working principle:
(1) when the folding cart is folded, the push rod 1 rotates forwards and downwards to drive the front stay bar 2 and the connecting rod 3 to rotate downwards, the rear stay bar 6 (namely the driving rod) rotates and approaches to the chassis 8 under the drive of the front stay bar 2 and the connecting rod 3, the upper sliding sleeve 5 slides downwards along the rear stay bar 6 while rotating with the front stay bar 2 until all rod pieces approach to the chassis 8, and the cart frame is completely folded. The folding of the wheel 10 is the same as in the first embodiment and will not be described here.
(2) When the push rod is opened, the operation process is opposite to the folding operation process, the push rod 1 is rotated upwards and backwards, the front stay bar 2 and the connecting rod 3 are driven to rotate upwards, the rear stay bar 6 is driven by the front stay bar 2 and the connecting rod 3 to rotate and is opened relative to the chassis 8, the upper sliding sleeve 5 and the front stay bar 2 rotate and simultaneously slide upwards along the rear stay bar 6 until all rod members are opened from the chassis 8, and the frame is completely opened. The opening of the wheel 10 is the same as in the first embodiment and will not be described here.
Example IV
Referring to fig. 15, the folding child stroller in this embodiment is identical to the wheel opening mechanism and the wheel folding mechanism of the first embodiment except for the configuration of the folding bracket assembly 16 in the frame.
The folding bracket assembly 16 in this embodiment includes a rear stay 6 (i.e., a driving rod) whose lower portion is rotatably connected with the rear portion of the chassis 8, a front stay 2 whose lower portion is rotatably connected with the front portion of the chassis 8 and whose upper portion is rotatably connected with the lower portion of the push rod 1, a connecting rod 3 whose upper portion is rotatably connected with the push rod 1 and whose lower portion is rotatably connected with the upper portion of the rear stay 6, an upper slide sleeve 5 slidably connected with the front stay 2, and an upper slide sleeve 5, the push rod 1, the connecting rod 3, the front stay 2, the rear stay 6 and the upper slide sleeve 5 constitute a crank slider mechanism, and the front stay 2, the rear stay 6, the chassis 8 and the upper slide sleeve 5 constitute a crank slider mechanism.
Working principle:
(1) when the folding cart is folded, the push rod 1 rotates forwards and downwards to drive the front stay bar 2 and the connecting rod 3 to rotate downwards, the rear stay bar 6 (namely the driving rod) rotates and approaches the chassis 8 under the drive of the front stay bar 2 and the connecting rod 3, the upper sliding sleeve 5 and the rear stay bar 6 rotate and slide downwards along the front stay bar 2 until all rod pieces approach the chassis 8, and the cart frame is completely folded. The folding of the wheel 10 is the same as in the first embodiment and will not be described here.
(2) When the push rod is opened, the operation process is opposite to the folding operation process, the push rod 1 is rotated upwards and backwards, the front stay bar 2 and the connecting rod 3 are driven to rotate upwards, the rear stay bar 6 is driven by the front stay bar 2 and the connecting rod 3 to rotate and is opened relative to the chassis 8, the upper sliding sleeve 5 and the rear stay bar 6 rotate and simultaneously slide upwards along the front stay bar 2 until all rod members are opened from the chassis 8, and the frame is completely opened. The opening of the wheel 10 is the same as in the first embodiment and will not be described here.
Example five
Referring to fig. 16, the folding child stroller in this embodiment is identical to the wheel opening mechanism and the wheel folding mechanism of the first embodiment, except for the configuration of the folding bracket assembly 16 in the frame.
The folding bracket assembly 16 in this embodiment includes a rear stay 6 (i.e., a driving rod) whose lower portion is rotatably connected with the rear portion of the chassis 8, a front stay 2 whose lower portion is rotatably connected with the front portion of the chassis 8 and whose upper portion is rotatably connected with the lower portion of the push rod 1, a connecting rod 3 whose upper portion is rotatably connected with the push rod 1, an auxiliary rear stay 17 whose upper portion is rotatably connected with the lower portion of the connecting rod 3 and whose lower portion is rotatably connected with the upper portion of the rear stay 6, the front stay 2 is rotatably connected with the auxiliary rear stay 17, the push rod 1, the connecting rod 3, the auxiliary rear stay 17 and the front stay 2 constitute a four-bar mechanism, and the front stay 2, the auxiliary rear stay 17, the rear stay 6 and the chassis 8 constitute a four-bar mechanism.
Working principle:
(1) when the folding handcart is folded, the push rod 1 rotates forwards and downwards to drive the front stay bar 2 and the connecting rod 3 to rotate downwards, the auxiliary rear stay bar 17 rotates and approaches the chassis 8 under the drive of the front stay bar 2 and the connecting rod 3, the rear stay bar 6 (i.e. the driving rod) rotates and approaches the chassis 8 under the drive of the auxiliary rear stay bar 17 until all rod pieces approach the chassis 8, and the frame is completely folded. The folding of the wheel 10 is the same as in the first embodiment and will not be described here.
(2) When the push-down is opened, the operation process is opposite to the folding operation process, the push rod 1 is rotated upwards and backwards, the front stay bar 2 and the connecting rod 3 are driven to rotate upwards, the auxiliary rear stay bar 17 is driven by the front stay bar 2 and the connecting rod 3 to rotate and is opened relative to the chassis 8, the rear stay bar 6 is driven by the auxiliary rear stay bar 17 to rotate and is opened relative to the chassis 8, all the rod members are opened until the chassis 8 is opened, and the frame is completely opened. The opening of the wheel 10 is the same as in the first embodiment and will not be described here.
Example six
Referring to fig. 17 to 23, in comparison with the first embodiment, the wheel opening mechanism is disposed near the front wheel, the driving rod described above is the front stay 2, the lower portion of the front stay 2 is rotatably connected with the front portion of the chassis 8, as shown in fig. 17C, the driving surface is disposed at the front portion of the bottom rod assembly 9, and the driving surface is the cylindrical surface 18. Specifically, the bottom of the front strut 2 has a protrusion 201, a supporting surface 202 is disposed on the protrusion 201, when the folding bracket assembly 16 is in the folded state, the protrusion 201 is separated from the cylindrical surface 18, and when the folding bracket assembly 16 transitions from the folded state to the unfolded state, the protrusion 201 slidably contacts the cylindrical surface 18, and when the folding bracket assembly 16 is in the unfolded state, the supporting surface 202 on the protrusion 201 abuts against the cylindrical surface 18.
The folding stroller in this embodiment can be folded in the up-down direction while folding in the front-back direction, and specifically as shown in fig. 23, the bottom bar assembly 9 includes a front bar 901, a rear bar 902 having a front portion slidably connected to the rear portion of the front bar 901, and the rear bar 902 is slidably and telescopically connected to the chassis 8, the front end of the front bar 901 and the rear end of the rear bar 902 being respectively connected to the wheels 10, and when the frame is in the first operating state, the rear bar 902 slides rearward and protrudes relative to the chassis 8, and when the frame is in the second operating state, the rear bar 902 slides forward and retracts relative to the chassis 8. The driving surface is provided at the front end of the front rod 901.
The folding bracket assembly 16 includes a rear stay 6 whose lower portion is rotatably connected to the rear portion of the chassis 8, an upper slide sleeve 5 which is slidably connected to the rear stay 6 and is rotatably connected to the front stay 2, a rear link 19 whose upper portion is rotatably connected to the rear stay 6 and whose lower portion is rotatably connected to the rear stay 902, a connecting rod 3 whose lower portion is rotatably connected to the upper portion of the rear stay 6 and whose upper portion is rotatably connected to the push rod 1, the connecting rod 3, the front stay 2, the rear stay 6 and the upper slide sleeve 5 constitute a crank slider mechanism, and the front stay 2, the rear stay 6, the chassis 8 and the upper slide sleeve 5 constitute a crank slider mechanism, and the rear stay 6, the rear link 19, the chassis 8 and the rear stay 902 constitute a crank slider mechanism. The chassis 8 is provided with a guide groove 20 provided in the front-rear direction, and the lower portion of the rear link 19 is connected to the rear lever 902 through the guide groove 20 as shown in fig. 17.
The wheel folding mechanism in this embodiment is the same as that in the first embodiment.
Working principle:
(1) when the trolley is folded, the push rod 1 rotates forwards and downwards to drive the front stay bar 2 (i.e. the driving rod) and the connecting rod 3 to rotate downwards, the rear stay bar 6 rotates under the driving of the connecting rod 3 and approaches the chassis 8, the rear connecting rod 19 rotates under the driving of the rear stay bar 6 and approaches the chassis 8 until all rod pieces approach the chassis 8, and the trolley frame is folded in the up-down direction. During rotation of the rear link 3, it moves the rear rod 902 of the bottom rod assembly 9 forward to retract relative to the chassis 8, thereby achieving folding of the frame in the front-rear direction. The folding of the wheel 10 is the same as in the first embodiment and will not be described here.
(2) When the cart is opened, the operation process is opposite to the folding operation process, the push rod 1 is rotated upwards and backwards, the front stay bar 2 and the connecting rod 3 are driven to rotate upwards, the rear stay bar 6 is driven by the connecting rod 3 to rotate and is opened relative to the chassis 8, the rear connecting rod 19 is driven by the rear stay bar 6 to rotate and is opened relative to the chassis 8, all rods are opened relatively, and the cart frame is opened up and down. During rotation of the rear link 19, it moves the rear rod 902 of the bottom rod assembly 9 to slide rearward and extend out relative to the chassis 8, thereby effecting opening of the frame in the front-rear direction. During the rotation of the front stay bar 2 (i.e. the driving rod), the protruding block 201 at the bottom end slides along the cylindrical surface 18 to push the bottom rod assembly 9 (including the front rod 901 and the rear rod 902) to rotate, so as to drive the wheels 10 to approach the chassis 8, and the folding of the wheels 10 is completed. And after the trolley is fully opened, the bottom support surface 202 abuts the cylindrical surface 18, maintaining the bottom bar assembly 9 in the current state, and thus the wheels 10 in the open state with respect to the chassis 8.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims (15)

1. A folding child stroller comprising a frame having at least two operative conditions, a locking mechanism for locking said frame in a first operative condition, characterized in that: the frame comprises a push rod (1), a chassis (8), a bottom rod assembly (9) which extends along the front and rear directions and is rotationally arranged on the chassis (8), wheels (10) which are respectively connected with the front end and the rear end of the bottom rod assembly (9), and a folding support frame assembly (16) which is connected between the push rod (1) and the chassis (8) and has an open state and a folding state, when the frame is in a first working state, the folding support frame assembly (16) is in the open state, the push rod (1) is far away from the chassis (8), the bottom rod assembly (9) rotates relative to the chassis (8) to enable the wheels (10) to be opened relative to the chassis (8), when the frame is in a second working state, the folding support frame assembly (16) is in the folding state, and the push rod (1) and the folding support frame assembly (16) are both close to the chassis (8), and the bottom rod assembly (9) rotates relative to the chassis (8) to enable the wheels (10) to be close to the chassis (8);
a wheel opening mechanism is arranged between the folding bracket assembly (16) and the bottom rod assembly (9), and in the process of transition of the folding bracket assembly (16) from a folding state to an opening state, the wheel opening mechanism drives the bottom rod assembly (9) to rotate so as to enable the wheel (10) to be opened relative to the chassis (8), and when the folding bracket assembly (16) is in the opening state, the wheel opening mechanism enables the wheel (10) to be kept in an opening position relative to the chassis (8); the folding support assembly (16) or the chassis (8) and the bottom rod assembly (9) are provided with a wheel folding mechanism, in the transition process of the folding support assembly (16) from an unfolded state to a folded state, the wheel folding mechanism drives the bottom rod assembly (9) to rotate so that the wheels (10) are close to the chassis (8), wherein the folding support assembly (16) comprises a driving rod, the lower part of the driving rod is rotatably connected with the chassis (8), the wheel unfolding mechanism comprises a driving surface which is arranged on the bottom rod assembly (9) and is slidably contacted with and can be separated from the driving rod, when the folding support assembly (16) is in a folded state, the driving rod is separated from the driving surface, and when the folding support assembly (16) is in a transition process of the folding support assembly from the unfolded state to the unfolded state, the driving rod is slidably contacted with the driving surface, and when the folding support assembly (16) is in the unfolded state, the driving rod is abutted with the driving surface.
2. The folding stroller of claim 1, wherein: the lower part of the driving rod is rotatably connected with the rear part of the chassis (8), the driving surface is arranged at the rear part of the bottom rod assembly (9) and comprises a slope (12) which is slidably contacted with the driving rod and can be separated, a resisting surface (13) which is connected with the slope (12) and can be separated from the driving rod, when the folding bracket assembly (16) is in a folding state, the driving rod is separated from the slope (12) and the resisting surface (13), and when the folding bracket assembly (16) is in a transition process from the folding state to the opening state, the driving rod is separated from the resisting surface (13) and slidably contacted with the slope (12), and when the folding bracket assembly (16) is in the opening state, the driving rod is separated from the slope (12) and is abutted against the resisting surface (13).
3. The folding stroller of claim 1, wherein: the lower part of the driving rod is rotationally connected with the front part of the chassis (8), the driving surface is arranged at the front part of the bottom rod assembly (9), and the driving surface is a cylindrical surface (18).
4. A folding stroller according to claim 3, characterized in that: the lower part of the driving rod is provided with a lug (201), the lug (201) is provided with a supporting surface (202), when the folding bracket assembly (16) is in a folding state, the lug (201) is separated from the cylindrical surface (18), when the folding bracket assembly (16) is in a transition process from the folding state to the opening state, the lug (201) is slidably contacted with the cylindrical surface (18), and when the folding bracket assembly (16) is in the opening state, the supporting surface (202) on the lug (201) is propped against the cylindrical surface (18).
5. The folding stroller of claim 1, wherein: the wheel folding mechanism is arranged between the chassis (8) and the bottom rod assembly (9), and comprises a torsion spring (14) arranged between the chassis (8) and the bottom rod assembly (9), and the torsion spring (14) applies force to the bottom rod assembly (9) to rotate and enable the wheels (10) to be close to the chassis (8).
6. The folding stroller of claim 1, wherein: the folding bracket assembly (16) comprises a lower sliding sleeve (7) which can be connected to the chassis (8) in a front-back sliding way, and a front supporting rod (2) of which the lower part is rotationally connected with the lower sliding sleeve (7) and the upper part is rotationally connected with the lower part of the push rod (1).
7. The folding stroller of claim 6, wherein: the wheel folding mechanism is arranged between the folding support frame assembly (16) and the bottom rod assembly (9), the wheel folding mechanism comprises a pair of spiral inclined planes (15) which are respectively arranged on the lower sliding sleeve (7) and the bottom rod assembly (9), the lower sliding sleeve (7) and the bottom rod assembly (9) are in slidable and detachable contact through the spiral inclined planes (15), when the folding support frame assembly (16) is in an open state, the lower sliding sleeve (7) is detached from the bottom rod assembly (9), and when the folding support frame assembly (16) is in transition from the open state to the folding state, the lower sliding sleeve (7) is in slidable contact with the bottom rod assembly (9) through the spiral inclined planes (15), and the bottom rod assembly (9) is rotated and the wheels (10) are closed to the chassis (8).
8. The folding stroller of claim 1, wherein: the bottom rod assembly (9) comprises a front rod (901), a rear rod (902) with the front part of the front rod (901) being in sliding connection, the rear rod (902) is connected with the chassis (8) in a sliding telescopic manner, the front end of the front rod (901) and the rear end of the rear rod (902) are respectively connected with the wheels (10), when the frame is in a first working state, the rear rod (902) slides backwards and stretches out relative to the chassis (8), and when the frame is in a second working state, the rear rod (902) slides forwards and retracts relative to the chassis (8).
9. The folding stroller of claim 8, wherein: the folding bracket assembly (16) comprises a rear supporting rod (6) with the lower part rotatably connected with the rear part of the chassis (8), and a rear connecting rod (19) with the upper part rotatably connected with the rear supporting rod (6) and the lower part rotatably connected with the rear rod (902).
10. The folding stroller of claim 1, wherein: the bottom rod assembly (9) is arranged in the chassis (8) in a penetrating way, and the front end and the rear end of the bottom rod assembly (9) extend out of the chassis (8).
11. The folding stroller of claim 6, wherein: the folding bracket assembly (16) further comprises a driving rod, a connecting rod (3), an upper sliding sleeve (5) and a seat rod (4), wherein the lower part of the driving rod is rotationally connected with the rear part of the chassis (8), the upper part of the driving rod is rotationally connected with the push rod (1), the lower part of the connecting rod is rotationally connected with the upper part of the driving rod, the upper sliding sleeve (5) is rotationally connected with the connecting rod (3), the seat rod (4) is slidingly connected with the upper sliding sleeve (5) and the rear part of the seat rod is rotationally connected with the front supporting rod (2), and the driving rod is rotationally connected with the front supporting rod (2).
12. The folding stroller of claim 1, wherein: the folding bracket assembly (16) comprises a driving rod, a front supporting rod (2), a connecting rod (3) and an upper sliding sleeve (5), wherein the lower part of the driving rod is rotationally connected with the rear part of the chassis (8), the lower part of the driving rod is rotationally connected with the front part of the chassis (8), the upper part of the front supporting rod is rotationally connected with the lower part of the push rod (1), the upper part of the connecting rod is rotationally connected with the push rod (1), the lower part of the connecting rod is rotationally connected with the upper part of the driving rod, the upper sliding sleeve (5) is slidably connected with the driving rod, and the front supporting rod (2) is rotationally connected with the upper sliding sleeve (5).
13. The folding stroller of claim 1, wherein: the folding bracket assembly (16) comprises a driving rod, a front supporting rod (2), a connecting rod (3) and an upper sliding sleeve (5), wherein the lower part of the driving rod is rotationally connected with the rear part of the chassis (8), the lower part of the driving rod is rotationally connected with the front part of the chassis (8), the upper part of the front supporting rod is rotationally connected with the lower part of the push rod (1), the upper part of the connecting rod is rotationally connected with the push rod (1), the lower part of the connecting rod is rotationally connected with the upper part of the driving rod, the upper sliding sleeve (5) is slidably connected with the front supporting rod (2), and the driving rod is rotationally connected with the upper sliding sleeve (5).
14. The folding stroller of claim 1, wherein: the folding bracket assembly (16) comprises a driving rod, a front supporting rod (2), a connecting rod (3) and an auxiliary driving rod (17), wherein the lower part of the driving rod is rotationally connected with the rear part of the chassis (8), the lower part of the driving rod is rotationally connected with the front part of the chassis (8), the upper part of the front supporting rod is rotationally connected with the lower part of the push rod (1), the connecting rod (3) is rotationally connected with the push rod (1), the upper part of the connecting rod (3) is rotationally connected with the lower part of the connecting rod, the lower part of the auxiliary driving rod is rotationally connected with the upper part of the driving rod, and the front supporting rod (2) is rotationally connected with the auxiliary driving rod (17).
15. The folding stroller of claim 9, wherein: the folding bracket assembly (16) further comprises a driving rod, a connecting rod (3) and an upper sliding sleeve (5), wherein the upper part of the driving rod is rotationally connected with the lower part of the push rod (1), the lower part of the driving rod is rotationally connected with the front part of the chassis (8), the lower part of the driving rod is rotationally connected with the upper part of the rear supporting rod (6), the upper part of the connecting rod is rotationally connected with the push rod (1), the upper sliding sleeve (5) is slidingly connected onto the rear supporting rod (6), and the driving rod is rotationally connected with the upper sliding sleeve (5).
CN201810715653.6A 2018-07-03 2018-07-03 Folding baby carriage Active CN108839703B (en)

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CN113511250B (en) * 2021-07-16 2023-01-31 好孩子儿童用品有限公司 Children's barrow

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1755333A2 (en) * 2005-08-16 2007-02-21 European Nursery Group Sweden AB Pram
WO2007025551A1 (en) * 2005-09-02 2007-03-08 Seed Production Aps A perambulator
CN101830245A (en) * 2010-03-30 2010-09-15 好孩子儿童用品有限公司 Child stroller
CN201587432U (en) * 2009-12-18 2010-09-22 好孩子儿童用品有限公司 Baby stroller
CN201745621U (en) * 2010-05-18 2011-02-16 好孩子儿童用品有限公司 Buggy
CN102202955A (en) * 2008-09-05 2011-09-28 索利产业公司 Collapsible stroller
CN203172675U (en) * 2013-02-28 2013-09-04 好孩子儿童用品有限公司 Stroller
CN106515833A (en) * 2016-12-06 2017-03-22 江苏小小恐龙儿童用品集团有限公司 Folding frame for baby stroller
CN106515829A (en) * 2016-12-14 2017-03-22 好孩子儿童用品有限公司 Child stroller
CN208813285U (en) * 2018-07-03 2019-05-03 好孩子儿童用品有限公司 Folding children's cart

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8474833B2 (en) * 2011-02-04 2013-07-02 Richard N. Shapiro Carrier devices with fold flat, fixed, caster and/or swivel wheel assemblies

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1755333A2 (en) * 2005-08-16 2007-02-21 European Nursery Group Sweden AB Pram
WO2007025551A1 (en) * 2005-09-02 2007-03-08 Seed Production Aps A perambulator
CN102202955A (en) * 2008-09-05 2011-09-28 索利产业公司 Collapsible stroller
CN201587432U (en) * 2009-12-18 2010-09-22 好孩子儿童用品有限公司 Baby stroller
CN101830245A (en) * 2010-03-30 2010-09-15 好孩子儿童用品有限公司 Child stroller
CN201745621U (en) * 2010-05-18 2011-02-16 好孩子儿童用品有限公司 Buggy
CN203172675U (en) * 2013-02-28 2013-09-04 好孩子儿童用品有限公司 Stroller
CN106515833A (en) * 2016-12-06 2017-03-22 江苏小小恐龙儿童用品集团有限公司 Folding frame for baby stroller
CN106515829A (en) * 2016-12-14 2017-03-22 好孩子儿童用品有限公司 Child stroller
CN208813285U (en) * 2018-07-03 2019-05-03 好孩子儿童用品有限公司 Folding children's cart

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