WO2023155462A1 - 折叠儿童车 - Google Patents

折叠儿童车 Download PDF

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Publication number
WO2023155462A1
WO2023155462A1 PCT/CN2022/126209 CN2022126209W WO2023155462A1 WO 2023155462 A1 WO2023155462 A1 WO 2023155462A1 CN 2022126209 W CN2022126209 W CN 2022126209W WO 2023155462 A1 WO2023155462 A1 WO 2023155462A1
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WO
WIPO (PCT)
Prior art keywords
frame
wheel
connecting rod
folding
base
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Application number
PCT/CN2022/126209
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English (en)
French (fr)
Inventor
应浩
Original Assignee
昆山爱儿佳儿童用品有限公司
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Publication date
Application filed by 昆山爱儿佳儿童用品有限公司 filed Critical 昆山爱儿佳儿童用品有限公司
Publication of WO2023155462A1 publication Critical patent/WO2023155462A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B62B7/083—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis the wheel axes being moved from each other during folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B62B7/086—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis becoming smaller in all three dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/12—Collapsible wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/30—Detachable, retractable or collapsible load supporting means
    • B62B2205/32—Shelves

Definitions

  • the invention belongs to the field of children's products, and in particular relates to a folding baby carriage.
  • Foldable baby carriages usually include a foldable frame, a wheel assembly installed at the lower part of the frame, a locking device capable of locking the state of the frame, and a body support device installed on the frame for the baby to sit on, such as a seat pocket , seat, sleeping basket, etc.
  • a body support device installed on the frame for the baby to sit on, such as a seat pocket , seat, sleeping basket, etc.
  • When unfolded it can be used by infants and young children, and when adults push it, it can be used as a means of transportation. When not in use, it can be folded to reduce the volume, which is convenient for storage or transportation.
  • the technical problem to be solved by the present invention is to provide a folding baby carriage.
  • a foldable baby carriage comprising a frame with an unfolded position and a folded position, and a plurality of wheel assemblies arranged at the bottom of the frame, when the frame is in In the unfolded position, each of the wheel assemblies protrudes downwards from the vehicle frame, and when the vehicle frame is in the folded position, each of the wheel assemblies is folded relative to the vehicle frame, and the vehicle frame It includes a base, a bottom wheel frame that is sleeved on the base and can use its own centerline as a turning axis, and a connecting rod that is installed on the base around a folding axis, and the axis of the folding axis is aligned with the The axis line of the turning shaft is perpendicular to the space, the connecting rod has a connecting rod pendulum section, and the bottom wheel frame has a fixed upper limit part and a lower limit part, and the connecting rod pendulum section is located at the
  • At least one wheel assembly is installed on the bottom wheel frame, when the frame is converted to the expanded position or to the folded position, the connecting rod is relatively Rotating around the folding axis, the connecting rod pendulum abuts against the lower limit portion or hooks on the upper limit portion to make the bottom wheel frame rotate relative to the base.
  • a rotation limiting structure is provided between the bottom wheel frame and the base to limit the range of rotation angles of the two.
  • the connecting rod pendulum hooks or presses against the upper limit portion.
  • an open movable space is formed between the upper limit portion and the lower limit portion, and the swing section of the connecting rod has a Cooperating with the control drive part, the control drive part is located in the activity space.
  • the wheel assembly includes a front wheel assembly and a rear wheel set, the front wheel assembly is arranged on the front end of the bottom wheel frame, and the rear wheel assembly is arranged on the bottom wheel frame At the rear end, the bottom wheel frame includes a bottom wheel shaft section, a rear wheel joint fixed to the rear end of the bottom wheel shaft section, the turning axis is the center line of the bottom wheel shaft section, and the turning axis is along Extending in the front-to-back direction, the rear wheel assembly is arranged on the rear wheel joint, the upper limit part is set on the bottom wheel shaft section or the upper part of the rear wheel joint, and the lower limit part is set on the above the rear wheel joint.
  • the vehicle frame includes side brackets located on the left and right sides, a human body support mechanism arranged between the left and right side brackets, each of the side brackets includes the bottom wheel frame, and It includes a front support frame whose lower end is pivotally connected with the base around two folding axes, and the bottom wheel frame also includes a front wheel joint fixed to the front end of the bottom wheel shaft section, and the front wheel assembly is arranged on the On the front wheel joint part, an unfolding anti-rotation mechanism for locking or unlocking both is provided between the lower part of the front bracket and the front wheel joint part.
  • the side bracket further includes the connecting rod, a push rod frame and an outer sliding sleeve respectively slidably arranged on the front bracket, and the upper end of the connecting rod is in contact with the outer sliding sleeve.
  • the lower part of the sleeve is pivotally connected around three folding axes, and the first folding axis, the second folding axis, and the three folding axes respectively extend along left and right directions and are parallel to each other.
  • the side support further includes a push rod frame slidably arranged on the front support frame, a push rod locking mechanism is arranged between the front support frame and the push rod frame, and the A sliding sleeve locking mechanism is arranged between the front brace and the outer sliding sleeve.
  • the lower end of the push rod frame has a push rod touch portion that sequentially touches the sliding sleeve locking mechanism and the unfolding anti-rotation mechanism to unlock when sliding downward.
  • the base includes a bottom front pedal extending in the left-right direction at the front, and two bottom installation parts that are left-right symmetrical and located at the rear, and each of the bottom wheel frames can only be rotatably inserted into the In the corresponding bottom mounting part and the corresponding side of the bottom front pedal, each bottom mounting part has a rotation plane for the connecting rod to rotate, and the folding axis is located at the bottom mounting part and perpendicular to the rotation plane, the two folding axes are located on the bottom front pedal, and the connecting rod swing sections on the left and right sides are fixedly connected to form a rigid whole through the connecting rod cross section.
  • the connecting rod swing sections on the left and right sides synchronously control the left and right front wheel assemblies and the left and right rear wheel assemblies to extend downward synchronously or move closer to the middle synchronously .
  • a foldable children's vehicle in the present invention mainly utilizes the bottom wheel frame, the base and the connecting rod in the frame, and the bottom wheel with the wheel assembly is installed.
  • the frame is nested with the base and can be rotated.
  • the connecting rod is rotatably connected to the base.
  • the pendulous section of the connecting rod is located between the upper limit part and the lower limit part.
  • Front support frame 14. Push rod frame; 15. Outer sliding sleeve; 16. Expand anti-rotation mechanism;
  • X1 first folding axis; X2, second folding axis; X3, third folding axis; X4, flipping axis.
  • a folding baby carriage usually includes a vehicle frame 1 with an unfolded position and a folded position, and a plurality of wheel assemblies arranged at the bottom of the vehicle frame 1 .
  • the wheel assembly is divided into a front wheel assembly and a rear wheel assembly according to the front and rear positions.
  • the front wheel assembly usually adopts universal wheels.
  • the vehicle frame 1 includes a base 10, side brackets formed on the base 10 and located on the left and right sides, and a human body support mechanism arranged between the left and right side brackets.
  • the base 10 can be a whole frame body, but in order to save material, in this embodiment, the base 10 is divided into three pieces.
  • the base 10 includes a bottom front pedal 101 extending in the left-right direction at the front, and two bottom mounting parts 102 that are left-right symmetrical and located at the rear.
  • the side brackets on each side include the bottom wheel frame 11 which is rotatably installed in the base 10 (one side of the bottom front pedal 101, the bottom installation part 102 on the corresponding side) and uses its own center line as the turning axis X4, and the bottom wheel frame 11 around the folding axis X1.
  • the upper end of the connecting rod 12 is pivotally connected with the lower part of the outer sliding sleeve 15 around the folding triaxial X3.
  • the first folding axis X1, the second folding axis X2, and the third folding axis X3 respectively extend along the left and right directions and are parallel to each other.
  • the length of the bottom wheel frame 11 is set along the front-rear direction
  • the turning axis X4 extends along the front-back direction
  • the axis line of the folding axis X1 is perpendicular to the axis line of the turning axis X4.
  • the front wheel assembly 2 is installed on the bottom wheel frame 11 front portion
  • the rear wheel assembly 3 is installed on the rear portion.
  • a push rod locking mechanism is arranged between the front support frame 13 and the push rod frame 14.
  • the push rod locking mechanism that locks the sliding push rod frame 14 is used for height adjustment and locking of the push rod frame in the unfolded position.
  • Unlock push rod holder 14 indentation etc. The push rod locking mechanism is a commonly used structure and will not be described in detail.
  • a sliding sleeve locking mechanism is arranged between the front support frame 13 and the outer sliding sleeve 15, and the sliding sleeve locking mechanism is not an invention point, and the locking mechanism between the sliding relationship is applicable, such as setting a spring pin or a spring hook on the outer sliding sleeve 15 etc.
  • the locking mechanism between the sliding relationship is applicable, such as setting a spring pin or a spring hook on the outer sliding sleeve 15 etc.
  • the push rod frame 14 slides down to a certain position, the elastic pin or the elastic hook is pushed out, and the sliding sleeve locking mechanism can be unlocked, and the vehicle frame can be folded.
  • the button can also be set to be controlled separately, without borrowing the push rod frame 14 .
  • the connecting rod 12 has a connecting rod pendulum section 121
  • the bottom wheel frame 11 has a fixed upper limit part 11a and a lower limit part 11b.
  • the connecting rod pendulum section 121 is located between the upper limit part 11a and the lower limit. Between bit parts 11b.
  • the outer sliding sleeve 15 slides down along the front bracket 13, so that the connecting rod 12 rotates around the bottom mounting portion 102 of the base 10.
  • the pendulum section 121 of the connecting rod lifts upwards against the upper limit portion 11a, and hooks it up, so that the bottom wheel frame 11 is rotated around the turning axis X4 relative to the base 10, and the wheel assembly is retracted upwards.
  • An open movable space is formed between the upper limit part 11a and the lower limit part 11b, and the connecting rod pendulum section 121 has a control driving part which facilitates cooperation with the upper limit part 11a and the lower limit part 11b, and the control driving part is located in the movable space .
  • This movable space can compensate the movable distance of the connecting rod 12 .
  • the wheel assembly includes a front wheel assembly 2 and a rear wheel assembly 3 , the front wheel assembly 2 is arranged on the front end of the bottom wheel frame 11 , and the rear wheel assembly 3 is arranged on the rear end of the bottom wheel frame 11 .
  • the bottom wheel frame 11 includes a bottom wheel shaft section 111, a rear wheel joint 113 fixed to the rear end of the bottom wheel shaft section 111, and a front wheel joint fixed to the front end of the bottom wheel shaft section 111.
  • the turning axis X4 is the center line of the bottom wheel shaft section 111
  • the rear wheel assembly 3 is arranged on the rear wheel joint part 113
  • the front wheel assembly 2 is arranged on the front wheel joint part 112
  • the upper limit part 11a, the lower limit part 11b are all arranged on the rear wheel joint part 113, which is convenient for mold opening to be integrally manufactured.
  • the upper limit portion and the lower limit portion can also be arranged on the front wheel joint portion.
  • an unfolding anti-rotation mechanism 16 for locking or unlocking the lower part of the front bracket 13 and the front wheel joint part 112 is provided.
  • the function of the unfolding anti-rotation mechanism 16 is to make the state of the vehicle frame 1 in the unfolded position more stable.
  • the lower part of the front bracket 13 is rotated or slid to be provided with a movable spring tongue with an extended position and a retracted position, and the front wheel joint part 112 is provided with a lock hole for anti-rotation.
  • the elastic tongue is automatically inserted in the anti-rotation lock hole.
  • the button switch of the movable tongue can be set individually.
  • Each bottom wheel frame 11 can only be rotatably inserted in the corresponding bottom mounting part 102 and the corresponding side part of the bottom front pedal 101 respectively, and each bottom mounting part 102 has a rotation plane for the connecting rod 12 to rotate respectively, and folds a
  • the axis X1 is located on the bottom mounting part 102 and is perpendicular to the rotation plane
  • the folding axis X2 is located on the bottom front pedal 101
  • the left and right side connecting rod pendulum sections 121 are fixedly connected to form a rigid whole through the connecting rod cross section.
  • the left and right side connecting rod pendulum sections 121 synchronously control the left and right front wheel assemblies 2 and the left and right rear wheel assemblies 3 to extend downward synchronously or move closer to the middle and move toward each other synchronously.
  • the other side is stretched, and the frame is folded in one go, and the volume is compact after folding.
  • the folding process of this embodiment the unlocked push rod frame 14 moves downward, the sliding sleeve locking mechanism is unlocked, the sliding sleeve 15 also moves downward, the push rod frame 14 moves downward, unlocks and unfolds the anti-rotation mechanism 16, and the sliding sleeve 15 moves downward
  • the connecting rod 12 is driven to rotate around the first folding axis X1
  • the pendulum section 121 of the connecting rod lifts upwards against the upper limit portion 11a, and lifts it up, so that the bottom wheel frame 11 is rotated around the turning axis X4 relative to the base 10 , the wheel assembly is stowed upwards.
  • the push rod frame 14 the front support frame 13, etc. are lifted up, and then the push rod frame 14 is pulled up, and the vehicle frame is just launched synchronously.

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

Abstract

一种折叠儿童车，包括具有展开位置与折叠位置的车架（1）、设置于车架（1）底部的多个轮组件，车架（1）包括底座（10）、与底座（10）相套设并能够以自身中心线作为翻转轴（X4）的底轮架（11）、绕折叠一轴（X1）转动设置于底座（10）上的连杆（12），折叠一轴（X1）的轴心线与翻转轴（X4）的轴心线相空间垂直，连杆（12）上具有连杆摆段（121），底轮架（11）上具有固定的上限位部（11a）、下限位部（11b），连杆摆段（121）位于上限位部（11a）与下限位部（11b）之间。当车架（1）在折叠或展开过程中，连杆摆段（121）抵在上限位部（11a）或下限位部（11b）上，带动底轮架（11）相对底座（10）转动，从而实现车架（1）展开时轮组件便同步向下伸出，而车架（1）折叠时轮组件便同步向上收起的效果。

Description

折叠儿童车 技术领域
本发明属于儿童用品领域，具体涉及一种折叠儿童车。
背景技术
折叠儿童车，通常包括可折叠的车架、安装在车架下部的轮组件、能够将所述车架状态锁定的锁定装置、安装在车架上的供婴儿乘坐的人体支撑装置，如座兜、座位、睡篮等。展开时能够供婴幼儿乘坐，大人推行时能够作为代步工具，不使用时，可通过折叠以减小体积，便于存储或运输。
作为折叠儿童车，展开位置下稳定，折叠方便，折叠后体积小型化，是一直以来共同追求的。以往大部分车架只考虑车架如何折叠并合理，使得折叠后体积尽可能小型化，当车架折叠后，向下伸出的多个轮组件无法折叠，体积依旧较大。为了进一步减小车架折叠后的体积。目前有部分折叠儿童车的轮组件是能够单独相对车架展开或折叠的，但作为儿童车，整体折叠或展开的操作较麻烦。
发明内容
本发明要解决的技术问题是提供一种折叠儿童车。
为了解决上述技术问题，本发明采用的技术方案是：一种折叠儿童车，包括具有展开位置与折叠位置的车架、设置于所述车架底部的多个轮组件，当所述车架处于展开位置下，每个所述轮组件分别自所述车架向下伸出，当所述车架处于折叠位置下，每个所述轮组件分别相对所述车架收折，所述车架包括底座、与所述底座相套设并能够以自身中心线作为翻转轴的底轮架、绕折叠一轴转动设置于所述底座上的连杆，所述折叠一轴的轴心线与所述翻转轴的轴心线相空间垂直，所述连杆上具有连杆摆段，所述底轮架上具有固定的上限位部、下限位部，所述连杆摆段位于所述上限位部与所述下限位部之间，所述底轮架上安装有至少一个所述轮组件，当所述车架向展开位置或向折叠位置转换的过程中，所述连杆相对所述底座绕所述折叠一轴转动，所述连杆摆段抵在所述下限位部或勾在所述上限位部上促使所述底轮架相对所述底座转动。
在某些实施方施中，所述底轮架与所述底座之间设置有限制两者转动角度范围的转动限定结构，当所述车架位于展开位置下，所述连杆摆段抵压在所述下限位部上。
在某些实施方施中，当所述车架位于折叠位置下，所述连杆摆段勾在或抵压在所述上限位部上。
在某些实施方施中，所述上限位部与所述下限位部之间形成敞开式的活动空间，所述连杆摆段上具有便于与所述上限位部与所述下限位部相配合的控制驱动部，所述控制驱动部位于所述活动空间内。
在某些实施方施中，所述轮组件包括前轮组件与后轮组，所述前轮组件设置于所述底轮架的前端部，所述后轮组件设置于所述底轮架的后端部，所述底轮架包括底轮轴杆段、固定于所述底轮轴杆段后端部的后轮接头部，所述翻转轴为底轮轴杆段的中心线，所述翻转轴沿前后方向延伸，所述后轮接头部上设置有所述后轮组件，所述上限位部设置于所述底轮轴杆段或所述后轮接头部的上部，所述下限位部设置于所述后轮接头部上。
在某些实施方施中，所述车架包括位于左右两侧部的侧支架、设置于左右所述侧支架之间的人体支撑机构，每个所述侧支架包括所述底轮架，还包括下端部与所述底座绕折叠二轴枢轴连接的前撑架，所述底轮架还包括固定于所述底轮轴杆段前端部的前轮接头部，所述前轮组件设置于所述前轮接头部上，所述前撑架的下部与所述前轮接头部之间设置有将两者锁定或解锁的展开止转机构。
在某些实施方施中，所述侧支架还包括所述连杆、分别滑动设置于所述前撑架上的推杆架以及外滑套，所述连杆的上端部与所述外滑套的下部绕折叠三轴枢轴连接，所述折叠一轴、所述折叠二轴、所述折叠三轴分别沿左右方向延伸并相平行。
在某些实施方施中，所述侧支架还包括滑动设置于所述前撑架上的推杆架，所述前撑架与所述推杆架之间设置有推杆锁定机构，所述前撑架与所述外滑套之间设置有滑套锁定机构。
在某些实施方施中，所述推杆架下端部具有向下滑动时依次触动所述滑套锁定机构以及所述展开止转机构解锁的推杆触动部。
在某些实施方施中，所述底座包括位于前部沿左右方向延伸的底前踏板、两个分别左右对称并位于后方的底安装部，每个所述底轮架分别仅能够转动地插在相应的所述底安装部内与所述底前踏板的相应侧部内，每个所述底安装部上分别具有供所述连杆转动的转动平面，所述折叠一轴位于所述底安装部上并与所述转动平面相垂直，所述折叠二轴位于所述底前踏板上，左右两侧部所述连杆摆段之间通过连杆横段相固定连接形成一个刚性整体，当所述车架向展开位置或向折叠位置转换的过程中，左右两侧部所述连杆摆段同步控制左右所述前轮组件及左右所述后轮组件同步向下伸出或同步向中间靠拢。
本发明的范围，并不限于上述技术特征的特定组合而成的技术方案，同时也应涵盖由上述技术特征或其等同特征进行任意组合而形成的其它技术方案。例如上述特征与本申 请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案等。
由于上述技术方案运用，本发明与现有技术相比具有下列优点：本发一种折叠儿童车主要利用了车架中的底轮架、底座与连杆三者，安装有轮组件的底轮架与底座相套设并能够转动设置，连杆转动连接在底座上，连杆摆段位于上限位部与下限位部之间，当车架在折叠或展开过程中，连杆摆段相对底座发生角度变化，通过抵在上限位部或下限位部上，带动底轮架相对底座转动，从而实现车架展开时轮组件便同步向下伸出，而车架折叠时轮组件便同步向上收起，整体设计结构简单，展开折叠操作方便，折叠后体积小，且制作成本低廉。 附图说明
附图1为折叠儿童车车架展开立体示意图一；
附图2为折叠儿童车车架展开侧面示意图；
附图3为折叠儿童车车架展立体示意图二；
附图4为推杆架下降后立体示意图一；
附图5为推杆架下降后立体示意图二；
附图6为车架折叠过程中状态图一；
附图7为车架折叠过程中状态图二；
附图8为折叠儿童车车架折叠立体示意图；
附图9为后轮组件安装于底轮架上的局部结构示意图；
其中:1、车架；2、前轮组件；3、后轮组件；
10、底座；101、底前踏板；102、底安装部；
11、底轮架；11a、上限位部；11b、下限位部；111、底轮轴杆段；112、前轮接头部；
113、后轮接头部；
12、连杆；121、连杆摆段；
13、前撑架；14、推杆架；15、外滑套；16、展开止转机构；
X1、折叠一轴；X2、折叠二轴；X3、折叠三轴；X4、翻转轴。
具体实施方式
折叠儿童车，通常包括具有展开位置与折叠位置的车架1、设置于车架1底部的多个轮组件。轮组件按前后位置分为前轮组件、后轮组件。前轮组件通常采用万向轮。当车架1处于展开位置下，供儿童乘坐，每个轮组件分别自车架1向下伸出，能够在地面上滚动，当车架1处于折叠位置下，每个轮组件自动随车架的折叠而折叠，即分别自动相对车架1收折，小体积便于存储、搬运。
本实施例中，如附图1-8所示，车架1包括底座10、形成于底座10上并位于左右两侧部的侧支架、设置于左右侧支架之间的人体支撑机构。底座10可以是一整个围框体，但为了便于节省材料，本实施例中，将底座10分体设置，分成三块。底座10包括位于前部沿左右方向延伸的底前踏板101、两个分别左右对称并位于后方的底安装部102。
每侧的侧支架包括转动穿设于底座10(底前踏板101的一侧、相应侧的底安装部102)内并以自身中心线作为翻转轴X4的底轮架11、绕折叠一轴X1转动设置于底座10上的连杆12、下端部与底座10绕折叠二轴X2枢轴连接的前撑架13、滑动插设于前撑架13内的推杆架14以及滑动套设于前撑架13外的外滑套15。
连杆12的上端部与外滑套15的下部绕折叠三轴X3枢轴连接。折叠一轴X1、折叠二轴X2、折叠三轴X3分别沿左右方向延伸并相平行。底轮架11长度沿前后方向设置，翻转轴X4沿前后方向延伸，折叠一轴X1的轴心线与翻转轴X4的轴心线相空间垂直。底轮架11前部安装有前轮组件2，后部安装有后轮组件3。
前撑架13与推杆架14之间设置有推杆锁定机构，将滑动的推杆架14锁定的推杆锁定机构用于展开位置下推杆架的高度调节及锁定，车架需要折叠时解锁将推杆架14缩进等。推杆锁定机构是常用结构，不赘述。
前撑架13与外滑套15之间设置有滑套锁定机构，滑套锁定机构也不是发明点，滑动关系之间的锁定机构都可适用，如在外滑套15上设置弹销或弹钩等，展开时自动弹插于前撑架锁孔内。当推杆架14向下滑动到一定位置时便推动弹销或弹钩，将之向外推出，便可将滑套锁定机构解锁，车架便可折叠。当然也可以设置按钮单独控制，而不需借用推杆架14。还可以采用专利申请号“201020505020.1”、授权公告号“CN 201849513U”的一种可折叠的儿童推车，该文献中第0022段与第0023公开了一种推杆、前支架与滑套之间配合的方案，文献中第0024段还公开了一种推杆与前支架之间的推杆锁定方案。
如附图1-9所示，连杆12上具有连杆摆段121，底轮架11上具有固定的上限位部11a、下限位部11b，连杆摆段121位于上限位部11a与下限位部11b之间。如附图6-8所示，当车架1由展开位置向折叠位置转换的过程中，外滑套15沿前撑架13向下滑动，使得连杆12相对底座10的底安装部102绕折叠一轴X1转动，连杆摆段121向上翘起抵在上限位部11a上，并将之向上勾起，促使底轮架11相对底座10绕翻转轴X4转动,轮组件向上收起。
底轮架11与底座10之间设置有限制两者转动角度范围的转动限定结构，转动限定结构不是发明点，如在底轮架11上设置定位销，底座10上开设弧形槽等，弧形槽的弧形角 度限制底轮架绕翻转轴X4转动的转动范围，如85°-95°,当车架1位于展开位置下，底轮架相对底座10向下转动至极限位置，并且此时车轮对水平面垂直，如附图3、附图9所示，而此时连杆摆段121抵压在下限位部11b上便将底轮架的位置锁死。
上限位部11a与下限位部11b之间形成敞开式的活动空间，连杆摆段121上具有便于与上限位部11a与下限位部11b相配合的控制驱动部，控制驱动部位于活动空间内。该活动空间可以补偿连杆12的活动距离。
关于轮组件的详细结构，轮组件包括前轮组件2与后轮组件3，前轮组件2设置于底轮架11的前端部，后轮组件3设置于底轮架11的后端部。如附图2、3所示，底轮架11包括底轮轴杆段111、固定于底轮轴杆段111后端部的后轮接头部113、固定于底轮轴杆段111前端部的前轮接头部112，翻转轴X4为底轮轴杆段111的中心线，后轮接头部113上设置有后轮组件3，前轮组件2设置于前轮接头部112上，上限位部11a、下限位部11b都设置于后轮接头部113上，便于开模一体制作而成。或者，为了满足车架其他方式的折叠原理，上限位部、下限位部也可设置于前轮接头部上。
如附图1所示，前撑架13的下部与前轮接头部112之间设置有将两者锁定或解锁的展开止转机构16。展开止转机构16的功能在于使得车架1在展开位置下的状态更加稳定。结构如，前撑架13的下部转动或滑动设置有具有伸出位置与缩进位置的活动弹舌，前轮接头部112上开设有止转锁孔，当车架1位于展开位置下，活动弹舌自动插在止转锁孔内，当推杆架14下降到底时，压在活动弹舌上使之退出止转锁孔，车架便可如附图6-8状态顺序折叠，当然也可以单独设置活动弹舌的按钮开关。
每个底轮架11分别仅能够转动地插在相应的底安装部102内与底前踏板101的相应侧部内，每个底安装部102上分别具有供连杆12转动的转动平面，折叠一轴X1位于底安装部102上并与转动平面相垂直，折叠二轴X2位于底前踏板101上，左右两侧部连杆摆段121之间通过连杆横段相固定连接形成一个刚性整体，当车架1向展开位置或向折叠位置转换的过程中，左右两侧部连杆摆段121同步控制左右前轮组件2及左右后轮组件3同步向下伸出或同步向中间靠拢并向对方伸展，车架折叠一气呵成，折叠后体积小巧。
本实施例折叠过程：解锁后的推杆架14向下移动，滑套锁定机构解锁、滑动套15也向下移动，推杆架14向下移动解锁展开止转机构16，滑动套15向下移动过程中带动连杆12绕折叠一轴X1转动，连杆摆段121向上翘起抵在上限位部11a上，并将之向上勾起，促使底轮架11相对底座10绕翻转轴X4转动,轮组件向上收起。展开时，将推杆架14、前撑架13等向上抬起，再将推杆架14向上拉起，车架便同步展开。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (10)

  1. 一种折叠儿童车，包括具有展开位置与折叠位置的车架(1)、设置于所述车架(1)底部的多个轮组件，当所述车架(1)处于展开位置下，每个所述轮组件分别自所述车架(1)向下伸出，当所述车架(1)处于折叠位置下，每个所述轮组件分别相对所述车架(1)收折，其特征在于：所述车架(1)包括底座(10)、与所述底座(10)相套设并能够以自身中心线作为翻转轴(X4)的底轮架(11)、绕折叠一轴(X1)转动设置于所述底座(10)上的连杆(12)，所述折叠一轴(X1)的轴心线与所述翻转轴(X4)的轴心线相空间垂直，所述连杆(12)上具有连杆摆段(121)，所述底轮架(11)上具有固定的上限位部(11a)、下限位部(11b)，所述连杆摆段(121)位于所述上限位部(11a)与所述下限位部(11b)之间，所述底轮架(11)上安装有至少一个所述轮组件，当所述车架(1)向展开位置或向折叠位置转换的过程中，所述连杆(12)相对所述底座(10)绕所述折叠一轴(X1)转动，所述连杆摆段(121)抵在所述下限位部(11b)或勾在所述上限位部(11a)上促使所述底轮架(11)相对所述底座(10)转动。
  2. 根据权利要求1折叠儿童车,其特征在于：所述底轮架(11)与所述底座(10)之间设置有限制两者转动角度范围的转动限定结构，当所述车架(1)位于展开位置下，所述连杆摆段(121)抵压在所述下限位部(11b)上。
  3. 根据权利要求2折叠儿童车,其特征在于：当所述车架(1)位于折叠位置下，所述连杆摆段(121)勾在或抵压在所述上限位部(11a)上。
  4. 根据权利要求1折叠儿童车,其特征在于：所述上限位部(11a)与所述下限位部(11b)之间形成敞开式的活动空间，所述连杆摆段(121)上具有便于与所述上限位部(11a)与所述下限位部(11b)相配合的控制驱动部，所述控制驱动部位于所述活动空间内。
  5. 根据权利要求1-4中任意一项折叠儿童车,其特征在于：所述轮组件包括前轮组件(2)与后轮组件(3)，所述前轮组件(2)设置于所述底轮架(11)的前端部，所述后轮组件(3)设置于所述底轮架(11)的后端部，所述底轮架(11)包括底轮轴杆段(111)、固定于所述底轮轴杆段(111)后端部的后轮接头部(113)，所述翻转轴(X4)为底轮轴杆段(111)的中心线，所述翻转轴(X4)沿前后方向延伸，所述后轮接头部(113)上设置有所述后轮组件(3)，所述上限位部(11a)设置于所述底轮轴杆段(111)或所述后轮接头部(113)的上部，所述下限位部 (11b)设置于所述后轮接头部(113)上。
  6. 根据权利要求5折叠儿童车,其特征在于：所述车架(1)包括位于左右两侧部的侧支架、设置于左右所述侧支架之间的人体支撑机构，每个所述侧支架包括所述底轮架(11)，还包括下端部与所述底座(10)绕折叠二轴(X2)枢轴连接的前撑架(13)，所述底轮架(11)还包括固定于所述底轮轴杆段(111)前端部的前轮接头部(112)，所述前轮组件(2)设置于所述前轮接头部(112)上，所述前撑架(13)的下部与所述前轮接头部(112)之间设置有将两者锁定或解锁的展开止转机构(16)。
  7. 根据权利要求6折叠儿童车,其特征在于：所述侧支架还包括所述连杆(12)、分别滑动设置于所述前撑架(13)上的外滑套(15)，所述连杆(12)的上端部与所述外滑套(15)的下部绕折叠三轴(X3)枢轴连接，所述折叠一轴(X1)、所述折叠二轴(X2)、所述折叠三轴(X3)分别沿左右方向延伸并相平行。
  8. 根据权利要求7折叠儿童车,其特征在于：所述侧支架还包括滑动设置于所述前撑架(13)上的推杆架(14)，所述前撑架(13)与所述推杆架(14)之间设置有推杆锁定机构，所述前撑架(13)与所述外滑套(15)之间设置有滑套锁定机构。
  9. 根据权利要求8折叠儿童车,其特征在于：所述推杆架(14)下端部具有向下滑动时依次触动所述滑套锁定机构以及所述展开止转机构(16)解锁的推杆触动部。
  10. 根据权利要求7折叠儿童车,其特征在于：所述底座(10)包括位于前部沿左右方向延伸的底前踏板(101)、两个分别左右对称并位于后方的底安装部(102)，每个所述底轮架(11)分别仅能够转动地插在相应的所述底安装部(102)内与所述底前踏板(101)的相应侧部内，每个所述底安装部(102)上分别具有供所述连杆(12)转动的转动平面，所述折叠一轴(X1)位于所述底安装部(102)上并与所述转动平面相垂直，所述折叠二轴(X2)位于所述底前踏板(101)上，左右两侧部所述连杆摆段(121)之间通过连杆横段相固定连接形成一个刚性整体，当所述车架(1)向展开位置或向折叠位置转换的过程中，左右两侧部所述连杆摆段(121)同步控制左右所述前轮组件(2)及左右所述后轮组件(3)同步向下伸出或同步向中间靠拢。
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CN217804877U (zh) * 2022-02-18 2022-11-15 昆山爱儿佳儿童用品有限公司 折叠儿童车
CN114394146A (zh) * 2022-02-24 2022-04-26 昆山爱儿佳儿童用品有限公司 推车折叠座兜及儿童折叠推车

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