CN110758525A - Child stroller capable of being converted between single person and double persons - Google Patents

Child stroller capable of being converted between single person and double persons Download PDF

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Publication number
CN110758525A
CN110758525A CN201910710495.XA CN201910710495A CN110758525A CN 110758525 A CN110758525 A CN 110758525A CN 201910710495 A CN201910710495 A CN 201910710495A CN 110758525 A CN110758525 A CN 110758525A
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China
Prior art keywords
seat
state
main
stroller
assembly
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CN201910710495.XA
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Chinese (zh)
Inventor
严卫军
马福生
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Goodbaby Child Products Co Ltd
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Goodbaby Child Products Co Ltd
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Publication of CN110758525A publication Critical patent/CN110758525A/en
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    • 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
    • B62B7/008Carriages for children; Perambulators, e.g. dolls' perambulators for two or more children
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

The invention discloses a child stroller capable of being converted by one person and two persons, wherein a stroller frame comprises a main frame and a seat assembly arranged on the main frame, the seat assembly comprises a main seat and an auxiliary seat, the main seat and the auxiliary seat can be arranged in a forward and backward direction in a relatively overturning way, at least one of the main seat and the auxiliary seat can be arranged on the main frame in a relatively overturning way in the forward and backward direction, the main seat and the auxiliary seat can be arranged in a forward and backward way in a relatively unfolding way by overturning the main seat or the auxiliary seat, so that the seat assembly is in a double-seat state, or the main seat and the auxiliary seat are distributed in an up and down way so that the seat assembly is in a single-seat state, and the child stroller can be conveniently converted between the single-person stroller state and the double-person stroller state. The stroller frame of the stroller has the advantages that the number of the rod pieces is small, when the stroller frame is converted to be used as a single stroller, only one seat is reserved for children to take, the whole stroller is light, and convenience is brought to daily use of users.

Description

Child stroller capable of being converted between single person and double persons
Technical Field
The invention relates to a child stroller capable of being converted by one person and two persons.
Background
At present, most double-person children carts do not have the function of single-person and double-person conversion, and when only one child needs to be pushed, the cart is very heavy and inconvenient to use.
Disclosure of Invention
The invention aims to provide a child stroller capable of being switched between a single-person stroller state and a double-person stroller state, so that the child stroller can be conveniently switched between the single-person stroller state and the double-person stroller state.
In order to achieve the purpose, the invention adopts the technical scheme that: a one-and-two-person convertible stroller comprising a stroller frame having an expanded state and front and rear wheel assemblies disposed at a bottom of the stroller frame, the stroller frame comprising a main frame and a seat assembly disposed on the main frame, the seat assembly comprising a main seat and a sub-seat, the main seat and the sub-seat being relatively tiltably disposed in a front-to-rear direction, wherein at least one of the main seat and the sub-seat is relatively tiltably mounted on the main frame in the front-to-rear direction such that the seat assembly has a two-seat state and a single-seat state, and when the seat assembly is in the two-seat state, the main seat and the sub-seat are relatively unfolded in tandem to be disposed to each provide a sitting support; when the seat assembly is in the single-seat state, the main seat and the auxiliary seat are arranged one above the other to form a seat.
According to a preferred aspect of the present invention, the main frame includes:
the front wheel assembly is arranged at the bottom of the front bracket;
the upper part of the rear bracket can rotate relatively and can be connected with the upper part of the front bracket in a relative sliding manner along the front and rear directions;
a push rod;
one end of the upper connecting rod is rotatably connected with the upper part of the rear bracket, and the other end of the upper connecting rod is rotatably connected to the push rod;
a rear link extending in an up-and-down direction, an upper portion of the rear link being rotatably connected to the push rod, and a lower portion of the rear link being rotatably connected to the rear bracket;
the front part of the main seat is rotatably connected to the front bracket, the rear part of the main seat is rotatably connected to the front part of the sub-seat, the upper link is rotatably connected to the sub-seat through a rotating shaft, and the sub-seat is turned back and forth around the rotating shaft to enable the seat assembly to be switched between the single-seat state and the double-seat state.
Further, the rear portion of the main seat and the front portion of the sub-seat are rotatably connected by a rotating shaft, and the rotating shaft is located rearward of the rotating shaft in the sub-seat when the seat assembly is in the double-seat state.
Further, the upper connecting rod comprises a connecting rod body extending along the front-rear direction, the connecting rod body is rotatably connected between the upper portion of the rear support and the push rod, the upper connecting rod further comprises a connecting rod body extending downwards from the connecting rod body, and the lower portion of the connecting rod body is rotatably connected with the auxiliary seat.
As a specific implementation mode, the connection body of rod certainly the anterior downward and the extension that inclines backward of the connection rod body of rod, the back support is including locating the left and right sides branch and all following two back branches that the upper and lower direction extends, works as when the shallow frame is in the expansion state, the connection body of rod is located two along the left and right sides direction between the back branch, just the connection body of rod with the back branch is parallel to each other.
Further, the front support comprises a front support rod body extending along the up-down direction and a sliding rod extending backwards from the upper portion of the front support rod body, the upper connecting rod at least comprises a connecting rod body extending along the front-back direction, the connecting rod body is rotatably connected to the upper portion of the rear support and between the push rods, and the sliding rod and the connecting rod body can be telescopically arranged in a sliding mode along the length extending direction of the sliding rod.
Further, when the sub-seat is flipped forward and backward relative to the main seat so that the seat assembly is switched between the single-seat state and the double-seat state, the upper portion of the rear bracket and the upper portion of the front bracket slide relative to each other in the forward and backward direction, and the distance between the front wheel assembly and the rear wheel assembly in the forward and backward direction is changed.
Further, when the seat assembly is in a single-seat state or a double-seat state, the stroller frame is foldable, when the stroller frame is in a folded state, the push rod is folded behind the rear support, and the front support, the rear support and the push rod are mutually folded in the front-rear direction.
According to another preferable aspect of the present invention, the main frame includes:
the front wheel assembly is arranged at the bottom of the front bracket;
the rear wheel assembly is arranged at the bottom of the rear support, the upper part of the rear support is rotatably connected with a first sliding piece, and the first sliding piece can be arranged on the front support in a vertically sliding manner along the length extending direction of the front support;
a swing link extending in an up-and-down direction, an upper portion of the swing link being rotatably connected to the first slider or rotatably connected to an upper portion of the rear bracket, and a lower portion of the swing link being rotatably connected to the main seat;
the front support is rotatably provided with a second sliding piece, the second sliding piece can be connected with the main seat in a front-back sliding mode along the length extension direction of the main seat, the auxiliary seat is rotatably connected to the rear support through a rear rotating shaft, and the auxiliary seat is turned forwards and backwards around the rear rotating shaft to enable the seat assembly to be switched between the single-seat state and the double-seat state.
Further, in the process that the sub-seat is turned forward and backward relative to the main seat so that the seat assembly is switched between the single-seat state and the double-seat state, the first slider slides up and down along the front bracket, the main seat slides forward and backward along the second slider, and the distance between the front wheel assembly and the rear wheel assembly in the forward and backward direction is changed.
Further, the lower part of the swing rod is rotatably connected to the main seat through a lower rotating shaft, and when the seat assembly is in a single-seat state, the second sliding member is positioned in front of the lower rotating shaft on the main seat; when the seat assembly is in the double-seat state, the second slider is positioned rearward of the lower rotating shaft on the main seat.
Preferably, the main frame includes at least a front bracket having the front wheel assembly at a bottom thereof and a rear bracket having the rear wheel assembly at a bottom thereof, and when the seat assembly is switched from the double-seat state to the single-seat state, a distance between the front wheel assembly and the rear wheel assembly in a front-rear direction is reduced.
Preferably, the sub-seat is relatively tiltably provided on the main frame, and the sub-seat is tilted and stacked below the main seat when the seat assembly is in the single-seat state.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the invention relates to a children's barrow capable of converting between single person and double persons, wherein a main seat and an auxiliary seat in a seat assembly are rotatably connected to enable the main seat and the auxiliary seat to be arranged oppositely in a turnover manner, and at least one of the main seat and the auxiliary seat is arranged on a main frame of a stroller frame in a turnover manner relatively along the front-back direction, so that the main seat and the auxiliary seat can be relatively unfolded and arranged in a front-back manner to respectively provide sitting support to enable the seat assembly to be in a double-seat state, or the main seat and the auxiliary seat are distributed in a top-bottom manner to enable the seat assembly to be in a single-seat state, and the children's barrow can be conveniently converted between the single-person stroller state and the double-person stroller state. The stroller frame of the stroller has the advantages that the number of the rod pieces is small, when the stroller frame is converted to be used as a single stroller, only one seat is reserved for children to take, the whole stroller is light, and convenience is brought to daily use of users.
Drawings
Fig. 1 is a perspective view of a stroller of embodiment 1 in a deployed state in which the seat assembly is in a double-seat state;
FIG. 2 is a perspective view of the stroller of FIG. 1 from another perspective;
FIG. 3 is a side view of the stroller of FIG. 1;
FIG. 4 is a schematic view of the stroller of FIG. 1 in use;
fig. 5 is a perspective view of the stroller of embodiment 1 in a deployed state in which the seat assembly is in a single-seat state;
fig. 6 is a side view of the stroller of fig. 5;
FIG. 7 is a schematic view of the stroller of FIG. 5 in use;
fig. 8 is a schematic view illustrating a process of converting the seat assembly from the double-seat state to the single-seat state in the stroller of embodiment 1;
FIG. 9 is a side view of the stroller of FIG. 1 in a folded state;
fig. 10 is a side view of the stroller of fig. 5 in a folded state;
fig. 11 is a perspective view of the stroller of embodiment 2 in a deployed state with the seat assembly in a single-seat position;
FIG. 12 is a side view of the stroller of FIG. 11;
fig. 13 is a schematic view showing a process of switching the seat assembly from the single-seat state to the double-seat state in the stroller of embodiment 2;
fig. 14 is a perspective view of the stroller of embodiment 2 in a deployed state in which the seat assemblies are in a double-seat state;
wherein: 1. a front bracket; 11. a front support rod body; 12. a slide bar; 13. a forefoot pedal; 14. a front armrest; 15. a front support rod; 2. a rear bracket; 21. a rear support rod; 22. a rear foot pedal; 3. a seat assembly; 31. a main seat; 31a, a front seat plate; 31b, a front seat tube; 32. a sub-seat; 33. a rotating shaft; 34. a back rest rod; 35. a mating groove; 36. a rotating shaft; 37. a rear rotating shaft; 4. a push rod; 5. an upper connecting rod; 51. a connecting rod body; 52. connecting the rod body; 6. a rear connecting rod; 7. a swing rod; 71. a lower rotating shaft; 8. a first slider; 9. a second slider; 10. a front wheel assembly; 20. a rear wheel assembly.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.
Example 1
Referring to fig. 1 to 10, a convertible stroller includes a stroller frame having a deployed state, a front wheel assembly 10 and a rear wheel assembly 20 provided at the bottom of the stroller, and a locking mechanism for locking the stroller frame in the deployed state, the stroller frame including a main frame and a seat assembly 3 provided on the main frame. The front wheel assembly 10 and the rear wheel assembly 20 are arranged at the bottom of the main frame; the seat assembly 3 comprises a main seat 31 and an auxiliary seat 32, the main seat 31 and the auxiliary seat 32 are rotatably connected and can be arranged in a relatively-overturning way, wherein one of the main seat 31 and the auxiliary seat 32 can be installed on the main frame in a relatively-overturning way, so that the seat assembly 3 has a double-seat state and a single-seat state, when the seat assembly 3 is in the double-seat state, the main seat 31 and the auxiliary seat 32 are relatively opened and can respectively provide sitting support, and the baby stroller can be used as a double-person stroller; when the seat assembly 3 is in the single-seat state, the main seat 31 and the sub-seat 32 are disposed one above the other to form a single seat, so that the stroller can be used as a single stroller.
In this embodiment, the main seat 31 and the auxiliary seat 32 can be arranged to be turned over in the front-rear direction, and when the seat assembly is in the double-seat state, the main seat 31 and the auxiliary seat 32 are arranged in tandem, as shown in fig. 1 to 3; when the seat assembly 3 is in the single-seat state, the main seat 31 and the sub-seat 32 are disposed one above the other to form a single seat, as shown in fig. 5 to 7.
In the present embodiment, the rear portion of the main seat 31 is rotatably connected to the front portion of the sub-seat 32 through the rotating shaft 33, the sub-seat 32 is relatively tiltably disposed on the main frame, and when the seat assembly 3 is in the single-seat state, the sub-seat 32 is tilted and stacked below the main seat 31, and the main seat 31 alone provides the child sitting support.
Referring to fig. 1 to 10, in the present embodiment, the main frame includes:
the front wheel assembly comprises a front bracket 1, a front wheel assembly 10 and a rear bracket, wherein the front wheel assembly is arranged at the bottom of the front bracket 1;
the upper part of the rear bracket 2 can rotate relatively and can be connected with the upper part of the front bracket 1 in a relative sliding way along the front and rear direction;
a push rod 4;
an upper link 5 having one end rotatably connected to an upper portion of the rear bracket 2 and the other end rotatably connected to the push rod 4;
a rear link 6 extending in the vertical direction, the upper portion of the rear link 6 being rotatably connected to the push rod 4, and the lower portion thereof being rotatably connected to the rear bracket 2;
the front portion of the main seat 31 is rotatably connected to the front frame 1, the upper link 5 is rotatably connected to the sub-seat 32 through a rotation shaft 36, and the sub-seat 32 is turned back and forth about the rotation shaft 36 to switch the seat assembly 3 between the single-seat state and the double-seat state.
When the seat assembly 3 is in the double-seat state, the rotating shaft 36 is positioned behind the rotating shaft 33 on the sub-seat 32; when the seat assembly 3 is converted into the single-seat state, the rotation shaft 36 is positioned forward of the rotation shaft 33 as the sub-seat 32 is turned. The bottom of the main seat 31 is further provided with a receiving cavity in which the sub-seat 32 is received when the seat assembly 3 is in the single-seat state, as shown in fig. 5. The bottom of the main seat 32 is further opened with a matching groove 35 for receiving the rotating shaft 36 therein in a matching manner.
In the process that the auxiliary seat 32 is turned back and forth relative to the main seat 31 around the rotating shaft 36 to enable the seat assembly 3 to be switched between the single-seat state and the double-seat state, the upper portion of the rear bracket 2 and the upper portion of the front bracket 1 slide relative to each other in the front-back direction, so that the distance between the front bracket 1 and the rear bracket 2 in the front-back direction is increased or decreased to adapt to the length of a single seat or the length of two seats, and the distance between the front wheel assembly 10 and the rear wheel assembly 20 in the front-back direction is changed along with the change of the distance, and the stable support of the whole main frame is maintained.
Referring to fig. 1 to 7, the upper link 5 includes a link rod body 51 extending in a front-rear direction, the link rod body 51 being rotatably connected between an upper portion of the rear bracket 2 and the push rod 4, and the upper link 5 further includes a connection rod body 52 extending downward from the link rod body 51, a lower portion of the connection rod body 52 being rotatably connected between the sub-seat 32 through the rotation shaft 36. Specifically, the connection rod 52 extends downward and rearward from the front of the connection rod 51, the rear frame 2 includes two rear support rods 21 respectively disposed on the left and right sides and extending in the up-down direction, when the stroller frame is in the unfolded state, the connection rod 52 is parallel to the rear support rods 21, and the connection rod 52 is located between the rear support rods 21 on the left and right sides, and the connection rod 52 is not visible from the side of the stroller frame, so that the stroller frame can be more simply unfolded.
The front bracket 1 comprises two groups of front supporting rods which are respectively arranged at the left side and the right side, each group of front supporting rods comprises a front supporting rod body 11 extending along the vertical direction and a sliding rod 12 extending backwards from the upper part of the front supporting rod body 11, and the bottom of the front supporting rod body 11 at each side is respectively provided with a group of front wheel assemblies 10. A front armrest 14 is fixedly provided between the upper portions of the two side front rod bodies 11, and a front pedal 13 is fixedly provided between the lower portions of the two side front rod bodies 11 to provide foot support for a child seated on the main seat 31. The rear frame 2 further includes a rear footrest 22 fixedly provided between lower portions of the side rear stays 21 to provide foot support for a child seated on the sub-seat 32, and a set of rear wheel assemblies 20 are provided at lower portions of each side rear stay 21.
The upper connecting rod 5, the rear connecting rod 6 and the push rods 4 are respectively provided with two groups which are respectively arranged at the left side and the right side, and the push rods 4 at the two sides are integrally arranged to be U-shaped with downward openings. On each of the left and right sides of the cart frame, the rear connecting rod 6 is connected between the push rod 4 and the rear supporting rod 21; the two groups of upper connecting rods 5 are positioned between the two groups of rear supporting rods 21 along the left-right direction; the front part of the link rod body 51 is rotatably connected with the upper part of the rear strut 21, the rear part of the link rod body 51 is rotatably connected with the push rod 4, and the slide rod 12 in the front strut and the link rod body 51 are telescopically arranged in a sliding way along the length extending direction of the slide rod 12. Here, the link body 51 has a hollow rod cavity, and the rear portion of the slide bar 12 is slidably inserted into the hollow rod cavity of the link body 51, so that the sliding telescopic connection between the slide bar 12 and the link body 51, and the sliding connection of the upper portion of the rear bracket 2 and the upper portion of the front bracket 1 in the front-rear direction are made.
Referring to fig. 1 to 10, the seat assembly 3 further includes a back lever 34 rotatably provided at a rear portion of the main seat 31, where a lower portion of the back lever 34 is rotatably provided about a rotating shaft 33, and may be used to provide back support for a child sitting on the main seat 31 or the sub-seat 32.
Referring to fig. 8, a schematic view of a process of converting the stroller of this embodiment from a two-seat stroller to a single-seat stroller is to convert the seat assembly 3 from the two-seat state to the single-seat state, wherein during the conversion, the sub-seat 32 is turned downward around the rotating shaft 36 to gradually close toward the bottom of the main seat 31, and at the same time, the front bracket 1 and the rear bracket 2 are relatively slid along the front-back direction to reduce the distance until the sub-seat 32 is stacked at the bottom of the main seat 31, and the conversion is completed, so that the overall size of the stroller frame is greatly reduced in the single-seat stroller state compared with the two-seat stroller state, and the pushing is more light and labor-saving. When the child stroller needs to be converted from a single stroller to a double stroller, the child stroller can be converted only by turning the auxiliary seat 32 backwards to unfold the auxiliary seat relative to the main seat 31 and enabling the rear support 2 to slide backwards relative to the front support 1 to increase the distance. The operation is very simple and convenient.
Referring to fig. 9 and 10, the stroller frame of the stroller of the present embodiment can be folded when the stroller is in the single-seat state or the double-seat state, i.e., the seat assembly 3 is in the single-seat state or the double-seat state. When the seat assembly 3 is in the double-seat state and the stroller frame is in the folded state, referring to fig. 9, the push rod 4 is folded behind the rear bracket 2, the front bracket 1, the rear bracket 2 and the push rod 4 are folded in the front-rear direction, the slide rod 12 and the link rod body 51 are in the relatively extended state, so that a space exists between the front bracket 1 and the rear bracket 2, and the main seat 31 and the auxiliary seat 32 are kept in the relatively extended state and are folded between the rod pieces. When the seat assembly 3 is in the single-seat state and the stroller frame is in the folded state, as shown in fig. 10, the main seat 31 and the auxiliary seat 32 are stacked, the slide rod 12 and the link rod body 51 are in the relatively contracted state, the push rod 4 is folded at the rear of the rear bracket 2, the front bracket 1, the rear bracket 2 and the push rod 4 are folded in each other along the front-rear direction, and the front bracket 1 and the rear bracket 2 rotate together. No matter the children's shallow is in single car state or double-person car state, when folding operation, only need to overturn push rod 4 backward after the unblock of shallow frame, alright make each member of shallow frame rotate relatively and realize folding up, the convenience of operation ten minutes.
Example 2
Referring to fig. 11 to 14, a stroller capable of single-double conversion is shown, in which a seat assembly 3 is also converted between a single-seat state and a double-seat state as an assembly 3 by arranging a sub-seat 32 on a main frame so as to be able to be turned back and forth, similarly to embodiment 1, and this embodiment is different from embodiment 1 mainly in the arrangement form of the main frame, which is as follows.
In this embodiment, the main frame includes:
the front wheel assembly comprises a front bracket 1, a front wheel assembly 10 and a rear bracket, wherein the front wheel assembly is arranged at the bottom of the front bracket 1;
the rear wheel assembly 20 is arranged at the bottom of the rear bracket 2, the upper part of the rear bracket 2 is rotatably connected with a first sliding piece 8, and the first sliding piece 8 is arranged on the front bracket 1 in a way of sliding up and down along the length extension direction of the front bracket 1;
a swing link 7 extending in an up-down direction, an upper portion of the swing link 7 being rotatably coupled to the first slider 8 or rotatably coupled to an upper portion of the rear bracket 2, and a lower portion of the swing link 7 being rotatably coupled to the main seat 31;
the front bracket 1 is further rotatably provided with a second sliding member 9, the second sliding member 9 is connected with the main seat 31 in a manner of sliding back and forth along the length extension direction of the main seat 31, and the auxiliary seat 32 is rotatably connected with the rear bracket 2 through a rear rotating shaft 37. The sub-seat 32 is turned back and forth about the rear rotation shaft 37 to switch the seat assembly 3 between the single-seat state and the double-seat state.
When the seat assembly 3 is in the double-seat state, the rotating shaft 33 is positioned behind the rotating shaft 33 on the sub-seat 32; when the seat assembly 3 is converted into the single-seat state, the rotation shaft 33 is positioned forward of the rotation shaft 33 as the sub-seat 32 is turned.
Specifically, the front frame 1 includes two front stays 15 respectively disposed on the left and right sides, and in the present embodiment, the front stays 15 on both sides are integrally disposed to form a U-shape with an opening facing downward, and the upper portions of the front stays 15 are used as push rods at the same time. The rear bracket 2 comprises two rear supporting rods 21 respectively arranged at the left side and the right side, the swing rods 7 are respectively arranged at the left side and the right side, and the seat component 3 is arranged among the front supporting rods 11 at the two sides, the rear supporting rods 21 at the two sides and the swing rods 7 at the two sides.
On each of the left and right sides of the stroller frame, the first sliding member 8 is a first sliding sleeve 8 slidably sleeved on the front support rod 15, and the upper portion of the swing link 7 and the upper portion of the rear support rod 21 are rotatably connected to the first sliding sleeve 8 through the same rotating shaft. The main seat 31 includes front seat tubes 31b respectively disposed on left and right sides and extending in a front-rear direction, and a front seat plate 31a fixedly disposed on the front seat tubes 31b on both sides, and a rear portion of the front seat plate 31a is rotatably connected to a front portion of the sub-seat 32 through a rotation shaft 33. The second sliding member 9 is a second sliding sleeve 9 slidably sleeved on the front seat tube 31b, and the lower portion of the swing link 7 is rotatably connected to the front seat plate 31a through a lower rotating shaft 71.
Referring to fig. 11 and 12, when the stroller is in a single-seat state, i.e. the seat assembly 3 is in the single-seat state, the auxiliary seat 32 is folded below the main seat 31, the swing link 7 is located behind the front support rod 11, and the second sliding sleeve 9 is located in front of the lower rotating shaft 71 on the main seat 31; when the stroller is in the double-seat state, i.e. the seat assembly 3 is in the double-seat state, as shown in fig. 14, the lower end of the swing link 7 swings to the front side of the front support 11, and the second sliding sleeve 9 is located behind the lower rotating shaft 71 on the main seat 31.
Referring to fig. 13, when the stroller is switched from a single stroller to a double stroller, that is, the seat assembly 3 is switched from the single-seat state to the double-seat state, the sub-seat 32 is turned backward around the rear rotating shaft 37 to be gradually unfolded with the main seat 31, the first sliding sleeve 8 is gradually slid downward along the front support rod 11 under the action of the front support rod 11 and the rear support rod 21, and the front seat tube 31b of the main seat 31 is slid forward along the second sliding sleeve 9, so that the distance between the front support rod 11 and the rear support rod 21 in the front-rear direction is gradually increased to adapt to the front and rear distribution of the main seat 31 and the sub-seat 32, and simultaneously, the rear support rod 21 is rotated relative to the front support rod 11, so that the distance between the front wheel assembly 10 and the rear wheel assembly 20 in the front-rear direction is also increased to maintain stable support of the main frame. On the contrary, when the child is put forward and changed from the two-person vehicle to the one-person vehicle, the auxiliary seat 32 is turned downwards to be gradually folded at the bottom of the main seat 31, and the change operation is also convenient. Particularly, when the bicycle is used as a single-person bicycle, the whole size is reduced, and the bicycle is more convenient to push.
Not shown, the stroller of the present embodiment can be folded even in a single-person stroller state or a double-person stroller state. When the folding seat is folded, the first sliding sleeve 8 slides upwards along the front support rod 1, so that the front support 1, the rear support 2 and the swing rod 7 are mutually folded, and the seat component 3 is folded between the front support 1 and the rear support 2.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (13)

1. The utility model provides a but children's shallow of one-man and two-man conversion, includes the shallow frame that has the expansion state and locates the front wheel subassembly and the rear wheel subassembly of shallow frame bottom, its characterized in that: the stroller frame comprises a main frame and a seat assembly arranged on the main frame, the seat assembly comprises a main seat and a sub-seat, the main seat and the sub-seat are arranged oppositely and overturned along the front-back direction, at least one of the main seat and the sub-seat can be installed on the main frame oppositely and overturned along the front-back direction, so that the seat assembly has a double-seat state and a single-seat state, and when the seat assembly is in the double-seat state, the main seat and the sub-seat are opened oppositely and arranged in tandem to respectively provide sitting support; when the seat assembly is in the single-seat state, the main seat and the auxiliary seat are arranged one above the other to form a seat.
2. The convertible stroller of claim 1, wherein: the main frame includes:
the front wheel assembly is arranged at the bottom of the front bracket;
the upper part of the rear bracket can rotate relatively and can be connected with the upper part of the front bracket in a relative sliding manner along the front and rear directions;
a push rod;
one end of the upper connecting rod is rotatably connected with the upper part of the rear bracket, and the other end of the upper connecting rod is rotatably connected to the push rod;
a rear link extending in an up-and-down direction, an upper portion of the rear link being rotatably connected to the push rod, and a lower portion of the rear link being rotatably connected to the rear bracket;
the front part of the main seat is rotatably connected to the front bracket, the rear part of the main seat is rotatably connected to the front part of the sub-seat, the upper link is rotatably connected to the sub-seat through a rotating shaft, and the sub-seat is turned back and forth around the rotating shaft to enable the seat assembly to be switched between the single-seat state and the double-seat state.
3. The convertible stroller of claim 2, wherein: the rear portion of the main seat and the front portion of the sub-seat are rotatably connected by a rotating shaft, and when the seat assembly is in a double-seat state, the rotating shaft is positioned behind the rotating shaft in the sub-seat.
4. The convertible stroller of claim 2, wherein: the upper connecting rod comprises a connecting rod body extending along the front-back direction, the connecting rod body is rotatably connected between the upper portion of the rear support and the push rod, the upper connecting rod further comprises a connecting rod body extending downwards from the connecting rod body, and the lower portion of the connecting rod body is rotatably connected with the auxiliary seat.
5. The convertible stroller of claim 4, wherein: the connection body of rod certainly the front portion of the connecting rod body of rod is inclined the extension downwards and backward, the rear bracket is including dividing two back branches of locating the left and right sides and all extending along upper and lower direction, works as when the shallow frame is in the expansion state, the connection body of rod is located two along left and right directions between the back branch, just the connection body of rod with the back branch is parallel to each other.
6. The convertible stroller of claim 2, wherein: the front support comprises a front support rod body extending along the up-down direction and a sliding rod extending backwards from the upper portion of the front support rod body, the upper connecting rod at least comprises a connecting rod body extending along the front-back direction, the connecting rod body is rotatably connected with the upper portion of the rear support and between the push rods, and the sliding rod and the connecting rod body can be arranged in a telescopic mode along the length extending direction of the sliding rod in a sliding mode.
7. The convertible stroller of claim 2, wherein: in the process that the auxiliary seat is turned forwards and backwards relative to the main seat, so that the seat assembly is switched between the single-seat state and the double-seat state, the upper part of the rear support and the upper part of the front support slide relatively in the front-back direction, and the distance between the front wheel assembly and the rear wheel assembly in the front-back direction is changed.
8. The convertible stroller of claim 2, wherein: when the seat assembly is in a single-seat state or a double-seat state, the stroller frame can be folded, when the stroller frame is in a folded state, the push rod is folded behind the rear support, and the front support, the rear support and the push rod are mutually folded along the front-rear direction.
9. The convertible stroller of claim 1, wherein: the main frame includes:
the front wheel assembly is arranged at the bottom of the front bracket;
the rear wheel assembly is arranged at the bottom of the rear support, the upper part of the rear support is rotatably connected with a first sliding piece, and the first sliding piece can be arranged on the front support in a vertically sliding manner along the length extending direction of the front support;
a swing link extending in an up-and-down direction, an upper portion of the swing link being rotatably connected to the first slider or rotatably connected to an upper portion of the rear bracket, and a lower portion of the swing link being rotatably connected to the main seat;
the front support is rotatably provided with a second sliding piece, the second sliding piece can be connected with the main seat in a front-back sliding mode along the length extension direction of the main seat, the auxiliary seat is rotatably connected to the rear support through a rear rotating shaft, and the auxiliary seat is turned forwards and backwards around the rear rotating shaft to enable the seat assembly to be switched between the single-seat state and the double-seat state.
10. The convertible stroller of claim 9, wherein: when the sub-seat is turned forward and backward relative to the main seat so that the seat assembly is switched between the single-seat state and the double-seat state, the first sliding member slides up and down along the front bracket, the main seat slides forward and backward along the second sliding member, and the distance between the front wheel assembly and the rear wheel assembly in the forward and backward direction is changed.
11. The convertible stroller of claim 9, wherein: the lower part of the swing rod is rotationally connected to the main seat through a lower rotating shaft, and when the seat assembly is in a single-seat state, the second sliding piece is positioned in front of the lower rotating shaft on the main seat; when the seat assembly is in the double-seat state, the second slider is positioned rearward of the lower rotating shaft on the main seat.
12. The convertible stroller of claim 1, wherein: the main frame at least comprises a front support with the bottom provided with the front wheel assembly and a rear support with the bottom provided with the rear wheel assembly, and when the seat assembly is switched from a double-seat state to a single-seat state, the distance between the front wheel assembly and the rear wheel assembly along the front-back direction is reduced.
13. The convertible stroller of any of claims 1-12, wherein: the sub-seat is relatively arranged on the main frame in a turnover mode, and when the seat assembly is in the single-seat state, the sub-seat is turned over and stacked below the main seat.
CN201910710495.XA 2019-03-12 2019-08-02 Child stroller capable of being converted between single person and double persons Pending CN110758525A (en)

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CN201910182721 2019-03-12
CN2019101827211 2019-03-12

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CN201910710495.XA Pending CN110758525A (en) 2019-03-12 2019-08-02 Child stroller capable of being converted between single person and double persons
CN201921240969.0U Active CN211391414U (en) 2019-03-12 2019-08-02 Child stroller capable of being converted between single person and double persons
CN201910710465.9A Pending CN110758524A (en) 2019-03-12 2019-08-02 Child stroller capable of being converted between single person and double persons
CN201921241812.XU Active CN211391415U (en) 2019-03-12 2019-08-02 Child stroller capable of being converted between single person and double persons

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CN201910710465.9A Pending CN110758524A (en) 2019-03-12 2019-08-02 Child stroller capable of being converted between single person and double persons
CN201921241812.XU Active CN211391415U (en) 2019-03-12 2019-08-02 Child stroller capable of being converted between single person and double persons

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113184035A (en) * 2021-04-14 2021-07-30 好孩子儿童用品有限公司 Child stroller capable of being converted between single person and double persons

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113184035A (en) * 2021-04-14 2021-07-30 好孩子儿童用品有限公司 Child stroller capable of being converted between single person and double persons
CN113184035B (en) * 2021-04-14 2022-08-02 好孩子儿童用品有限公司 Child stroller capable of being converted between single person and double persons

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CN110758524A (en) 2020-02-07
CN211391415U (en) 2020-09-01

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