WO2013044662A1 - 幼儿推车 - Google Patents

幼儿推车 Download PDF

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Publication number
WO2013044662A1
WO2013044662A1 PCT/CN2012/077945 CN2012077945W WO2013044662A1 WO 2013044662 A1 WO2013044662 A1 WO 2013044662A1 CN 2012077945 W CN2012077945 W CN 2012077945W WO 2013044662 A1 WO2013044662 A1 WO 2013044662A1
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WO
WIPO (PCT)
Prior art keywords
bracket
rotating shaft
frame
support frame
upper connecting
Prior art date
Application number
PCT/CN2012/077945
Other languages
English (en)
French (fr)
Inventor
马福生
Original Assignee
好孩子儿童用品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 好孩子儿童用品有限公司 filed Critical 好孩子儿童用品有限公司
Priority to EP12835686.2A priority Critical patent/EP2762383B1/en
Publication of WO2013044662A1 publication Critical patent/WO2013044662A1/zh

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Classifications

    • 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
    • B62B7/068—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by sliding a bushing along a rod, e.g. like folding means of an umbrella
    • 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
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/02—Hand-propelled vehicles or sledges being foldable or dismountable when not in use foldable widthwise
    • 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
    • B62B2205/06—Foldable with a scissor-like mechanism

Definitions

  • the invention relates to a baby stroller.
  • a child stroller of the prior art includes a frame having a deployed position and a folded position, a front wheel assembly and a rear wheel assembly disposed at a lower portion of the frame, and a support device capable of supporting the human body disposed on the frame, A locking mechanism that locks the frame to the deployed position.
  • There are many types of existing frames and the number of the bars of the frame is different, and the connection relationship and the connection position of the bars are different, so that the folding principle and the folding manner are different.
  • the technical problem to be solved by the present invention is to provide a baby stroller.
  • a baby stroller comprising a frame having a deployed position and a folded position, a front wheel assembly, a rear wheel assembly, and a frame for locking the frame in the deployed position.
  • the locking device and the supporting device disposed on the frame capable of supporting the human body.
  • the frame includes a front bracket for mounting the front wheel assembly at the front, a push rod bracket, an upper connecting bracket above the front bracket, a sliding member rotatably coupled to the front bracket, and a rear bracket at the lower portion of the rear wheel assembly.
  • the lower portion of the push rod frame is rotatably coupled to the rear portion of the front bracket, and the push rod bracket is rotatable relative to the front bracket about the first rotating shaft.
  • the rear portion of the upper connecting frame is rotatably coupled to the push rod frame, and the upper connecting frame is rotatable relative to the push rod frame about the second rotating shaft.
  • the slider is rotatable about the third axis of rotation with respect to the front bracket.
  • the rear bracket is formed by the first bracket and the second bracket being rotatably connected about the fifth rotating shaft, and the fifth rotating shaft is located above the sliding member.
  • the first bracket and the second bracket are slidably coupled to both sides of the slider, respectively.
  • the first bracket or the second bracket is pivotally connected with a rotating joint, and the rotating joint and the front portion of the upper connecting bracket are connected to be rotatable relative to the fourth rotating shaft.
  • the first rotating shaft, the second rotating shaft, and the third rotating shaft and the fourth rotating shaft respectively extend in the lateral direction.
  • the so-called “lateral” here and elsewhere herein is defined in accordance with the general habits of the consumer, that is, the lateral direction of the generally recognized frame.
  • first rotating shaft, the second rotating shaft, and the third rotating shaft and the fourth rotating shaft are parallel to each other.
  • the fifth axis of rotation is spatially perpendicular to the first axis of rotation.
  • the rotating joint, the first bracket is coupled to the second bracket and can be relatively rotated about the fifth shaft.
  • the frame further includes a link, the upper end of the link being rotatably coupled to the upper link, and the lower portion of the link being rotatably coupled to the front bracket.
  • the connecting rod rotates relative to the upper link frame about the sixth rotating shaft, and the sixth rotating shaft extends along the lateral direction.
  • the lower portion of the link is rotatably coupled to the front bracket.
  • the connecting rod rotates about the seventh rotating shaft with respect to the front bracket, the seventh rotating shaft extends in the lateral direction, and the seventh rotating shaft is located between the third rotating shaft and the first rotating shaft.
  • the front bracket is located below the fifth shaft and passes through a space formed between the first bracket and the second bracket.
  • the two sides of the sliding member are respectively opened with a first through hole and a second through hole, the first bracket is inserted in the first through hole, and the second bracket is inserted in the second through hole.
  • the first through hole has a first limiting surface
  • the second through hole has a second limiting surface.
  • the upper, lower, front, and rear azimuth terms mentioned above are defined when the frame is in the deployed position.
  • the present invention has the following advantages compared with the prior art: when the push rod frame is turned forward, the upper connecting frame drives the rear bracket to be turned forward around the third rotating shaft and slides forward relative to the sliding member. Under the restriction of the sliding member, the rear bracket will be laterally close together while sliding relative to the sliding member, and the whole vehicle is small in volume after folding, and the structure is simple.
  • Figure 1 is a side view of a cart (with the frame in the deployed position) in accordance with an embodiment of the present invention
  • Figure 2 is a side view of the state of the cart shown in Figure 1 (the frame is in the process of conversion between the deployed position and the folded position);
  • Figure 3 is a perspective view of the cart shown in Figure 1 (the frame is in the deployed position);
  • Figure 4 is a perspective view of the cart in a state corresponding to that shown in Figure 2 (the frame is in the process of transition between the deployed position and the folded position);
  • Figure 5 is a side view of the state of the cart shown in Figure 1 (the frame is in the folded position);
  • Figure 6 is a perspective view of the cart in a state corresponding to that shown in Figure 5 (the frame is in a folded position);
  • Figure 7 is a plan view of the cart of Figure 1 (the frame is in the deployed position);
  • Figure 8 is a plan view of the cart shown in Figure 5 (the frame is in a folded position);
  • the cart includes a frame 1 having a deployed position and a folded position, a front wheel assembly 2, a rear wheel assembly, a locking device for locking the frame 1 in the deployed position, and a frame provided on the frame.
  • the supporting device capable of supporting the human body on the 1st, the supporting device is not shown, and the supporting device may be a child seat pocket, a child sleeping basket, a seat cloth pocket, and the like.
  • the frame 1 includes a front bracket 11, a pusher frame 12 rotatably coupled to a rear portion of the front bracket 11 at a lower portion, an upper connecting frame 13 above the front bracket 11, and a rotational connection to
  • the slider 18 of the front bracket 11 has a rear bracket 14 composed of a first bracket 15 and a second bracket 16 which are intersected and rotatably connected at the intersection.
  • the front wheel assembly 2 is mounted at the bottom of the front portion of the front bracket 11.
  • the pusher frame 12 is rotatable relative to the front bracket 11 about the first rotating shaft 21.
  • the rear portion of the upper connecting frame 13 is rotatably connected to the push rod frame 12, and the upper connecting frame 13 is rotatable relative to the push rod frame 12 about the second rotating shaft 22, and the second rotating shaft 22 is located above the first rotating shaft 21.
  • the slider 18 is rotated about the third rotating shaft 23 with respect to the front bracket 11, and the third rotating shaft 23 is located in front of the first rotating shaft 21.
  • the first bracket 15 is rotated about the fifth rotating shaft 25 with respect to the second bracket 16.
  • the first bracket 15 and the second bracket 16 are slidably coupled to both side portions of the slider 18, respectively.
  • the slider 18 is located below the fifth rotating shaft 25.
  • a rotating joint 17 is pivotally connected to the first bracket 15 or the second bracket 16, and the rotating joint 17 is located above the slider 18.
  • the front portion of the upper connecting frame 13 and the rotating joint 17 are rotatably connected around the fourth rotating shaft 24.
  • the rear wheel assembly includes a first rear wheel assembly 3 and a second rear wheel assembly 4, the first rear wheel assembly 3 is disposed at a lower portion of the first bracket 15, and the second rear wheel assembly 4 is disposed at a lower portion of the second bracket 16.
  • the first rotating shaft 21, the second rotating shaft 22, the third rotating shaft 23, and the fourth rotating shaft 24 extend in the lateral direction, respectively.
  • the support means are not the focus of the present invention, and their construction and mounting means are well known to those skilled in the art and are therefore not shown in the drawings.
  • the supporting device may be mounted on the upper connecting frame or may be mounted on the rear bracket, and the mounting manner may be fixed or detachable.
  • the support device may be a seat cloth pocket disposed between the upper portion where the first bracket 15 and the second bracket 16 intersect.
  • the first rotating shaft 21 and the second rotating shaft 22 are parallel to the third rotating shaft 23 and the fourth rotating shaft 24.
  • the fifth rotating shaft 25 is spatially perpendicular to the first rotating shaft 21.
  • the rotating joint 17, the first bracket 15 and the second bracket 16 are connected by the same shaft via the fifth rotating shaft 25.
  • the frame 1 further includes a link 19, and the upper end of the link 19 is rotatably coupled to the upper link 19.
  • the link 19 is rotated relative to the upper link 19 about a sixth axis 26 extending in the lateral direction, and the sixth shaft 26 is located between the second shaft 22 and the fourth shaft 24.
  • the lower portion of the link 19 is rotatably coupled to the front bracket 11.
  • the lower portion of the connecting rod 19 is rotatably coupled to the front bracket 11, and the connecting rod 19 is rotated relative to the front bracket 11 about a seventh rotating shaft 27 extending in the lateral direction.
  • the seventh rotating shaft 27 is located between the third rotating shaft 23 and the first rotating shaft 21. .
  • the lower portion of the connecting rod can also be rotatably connected to the sliding member, and the person skilled in the art can realize the displacement of the lower portion of the connecting rod 1 according to the structure shown in FIG. 1. Therefore, the connecting manner is not detailed in the drawings. Show.
  • the link 19 is also rotatable about the third rotating shaft 23 with respect to the front bracket 11.
  • the pusher frame 12, the upper connecting frame 13, the connecting rod 19 and the front bracket 11 constitute a four-bar linkage mechanism, which further makes the rigidity of the frame 1 in the deployed position strong. If the locking device is disposed between the push rod frame 12 and the front bracket 11, when the locking device locks the frame 1 in the deployed position, the push rod frame 12, the upper connecting frame 13, the connecting rod 19 and the front bracket 11 are formed. Stable triangular structure.
  • the locking device can also be disposed between the push rod frame 12 and the upper connecting frame 13. The specific structure of the locking device is not the focus of the present invention, as long as it is a structure capable of locking between two relatively rotating members.
  • the front bracket 11 is located below the fifth rotating shaft 25 and is sandwiched between the first bracket 15 and the second bracket 16 .
  • the first through hole and the second through hole are respectively formed on the two sides of the sliding member 18, and the first through hole and the second through hole can have a large aperture hole.
  • the first bracket 15 is inserted into the first through hole, and the second bracket 16 is inserted into the second through hole.
  • the first through hole has a first limiting surface
  • the second through hole has a second limiting surface.

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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

一种幼儿推车，其车架（1）包括前支架（11）、下部与前支架（11）的后部可绕第一转轴（21）转动地相连接的推杆架（12）、后部与推杆架（12）可绕第二转轴（22）转动地相连接的上连接架（13）、与前支架（11）可绕第三转轴（23）转动地相连接的滑动件（18）、由第一支架（15）与第二支架（16）相转动地连接构成的后支架(14），第一支架（15）相对第二支架（16）可绕第五转轴（25）转动，第一支架（15）与第二支架（16）分别与滑动件（18）的两侧部可滑动地相连，滑动件（18）位于第五转轴（25）的下方，第一支架（15）或者第二支架（16）上枢轴连接有转动关节（17），上连接架（13）的前部与转动关节（17）可绕第四转轴（24）转动地相连接。当将推杆架（12）向前翻到，在上连接架（13）的驱动下，使得后支架（14）绕第三转轴（23）向前翻倒并相对滑动件(18）向前滑动，并且在滑动件（18）的导向限制作用下，后支架（14）横向收折，整车折叠后体积较小，结构简单。

Description

幼儿推车
技术领域
本发明涉及一种幼儿推车。
背景技术
现有技术中的一种幼儿推车，包括具有展开位置与折叠位置的车架、设置于车架下部的前轮组件与后轮组件、设置于车架上的能够支撑人体的支撑装置、用于将车架锁定于展开位置下的锁定机构。现有的车架的种类繁多，车架的杆件的数目不同，各杆件之间连接关系、连接位置不同，从而折叠原理与折叠方式各不相同。
发明内容
本发明要解决的技术问题是提供一种幼儿推车。
为了解决上述技术问题，本发明采用的技术方案是：一种幼儿推车，包括具有展开位置与折叠位置的车架、前轮组件、后轮组件、用于将车架锁定于展开位置下的锁定装置、设置于车架上的能够支撑人体的支撑装置。车架包括前部安装前轮组件的前支架、推杆架、位于前支架上方的上连接架、与前支架相转动连接的滑动件、下部设置后轮组件的后支架。推杆架的下部与前支架的后部相可转动地连接，推杆架相对前支架可绕第一转轴转动。上连接架的后部与推杆架相可转动地连接，上连接架相对推杆架可绕第二转轴转动。滑动件相对前支架可绕第三转轴转动。后支架是由第一支架与第二支架可绕第五转轴相对转动地连接所构成的，第五转轴位于滑动件的上方。第一支架与第二支架分别可滑动地连接于滑动件的两侧部。第一支架或者第二支架上枢轴连接有转动关节，转动关节与上连接架的前部可绕第四转轴相对转动地连接。第一转轴、第二转轴与第三转轴、第四转轴分别沿着横向延伸。此处及本文其它各处所谓的“横向”是根据消费者的一般习惯定义的，即一般认知的车架的横向。
在某些实施方式中，第一转轴、第二转轴与第三转轴、第四转轴相互平行。
在某些实施方式中，第五转轴与第一转轴相空间垂直。
在某些实施方式中，转动关节、第一支架与第二支架相同轴连接并可绕第五转轴相对转动。
在某些实施方式中，车架还包括连杆，连杆的上端部与上连杆架相对转动地连接，连杆的下部与前支架相转动地连接。连杆相对上连杆架绕第六转轴转动，第六转轴沿着横向延伸。，
在某些实施方式中，连杆的下部与前支架相可转动地连接。连杆相对前支架绕第七转轴转动，该第七转轴沿横向延伸，且第七转轴位于第三转轴与第一转轴之间。
在某些实施方式中，前支架位于第五转轴的下方，并且穿过第一支架与第二支架之间形成的空间。
在某些实施方式中，滑动件的两侧部分别开有第一通孔与第二通孔，第一支架插在第一通孔内，第二支架插在第二通孔内。
在某些进一步实施方式中，第一通孔内具有第一限位面，第二通孔内具有第二限位面，当车架处于展开状态下，第一支架低在第一限位面上，第二支架抵在第二限位面上。
以上所涉及到的上、下、前、后等方位名词是在车架处于展开位置下作定义的。
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：当将推杆架向前翻转时，上连接架带动后支架绕第三转轴向前翻转并相对滑动件向前滑动，在滑动件的限制下，后支架在相对滑动件向前滑动的同时会横向靠拢，整车折叠后体积较小，结构简单。
附图说明
附图1为根据本发明实施的一推车的侧视图（车架处于展开位置下）；
附图2为图1所示推车状态变换后的侧视图（车架在展开位置与折叠位置的转换过程中）；
附图3为图1所示推车的立体图（车架处于展开位置下）；
附图4为推车在与图2所示相对应的状态下的立体图（车架在展开位置与折叠位置的转换过程中）；
附图5为图1所示推车状态变化后的侧视图（车架处于折叠位置下）；
附图6为推车在与图5所示相对应的状态下的立体图（车架处于折叠位置下）；
附图7为图1所示推车的俯视图（车架处于展开位置下）；
附图8为图5所示推车的俯视图（车架处于折叠位置下）；
其中：1、车架；2、前轮组件；3、第一后轮组件；4、第二后轮组件； 11、前支架；12、推杆架；13、上连接架；14、后支架；15、第一支架；16、第二支架；17、转动关节；18、滑动件；19、连杆；21、第一转轴；22、第二转轴；23、第三转轴；24、第四转轴；25、第五转轴；26、第六转轴；27、第七转轴。
具体实施方式
图1-8反映了根据本发明的一实施例的推车的结构和推车的状态变化。
如各附图所示，该推车包括具有展开位置与折叠位置的车架1、前轮组件2、后轮组件、用于将车架1锁定于展开位置下的锁定装置、设置于车架1上的能够支撑人体的支撑装置，支撑装置无图示，支撑装置可以是儿童座兜、儿童睡篮、座位布兜等。
如各附图所示，车架1包括前支架11、在下部与前支架11的后部相可转动地连接的推杆架12、位于前支架11的上方的上连接架13、转动连接于前支架11的滑动件18、由相交叉并在交叉处相转动连接的第一支架15和第二支架16构成的后支架14。
前轮组件2安装在前支架11的前部的底部。
推杆架12相对前支架11可绕第一转轴21转动。上连接架13的后部与推杆架12相转动连接，上连接架13相对推杆架12可绕第二转轴22转动，第二转轴22位于第一转轴21的上方。
滑动件18相对前支架11绕第三转轴23转动，第三转轴23位于第一转轴21的前方。
第一支架15相对第二支架16绕第五转轴25转动。第一支架15与第二支架16分别与滑动件18的两侧部可滑动地相连接。滑动件18位于第五转轴25的下方。
第一支架15或者第二支架16上枢轴连接有转动关节17，转动关节17位于滑动件18的上方。上连接架13的前部与转动关节17可绕第四转轴24转动地相连接。
后轮组件包括第一后轮组件3与第二后轮组件4，第一后轮组件3设置于第一支架15的下部，第二后轮组件4设置于第二支架16的下部。
第一转轴21、第二转轴22与第三转轴23、第四转轴24分别沿着横向延伸。
支撑装置不是本发明的重点，且其结构和安装方式早已为本领域技术人员熟知，因而未在附图中显示。例如，支撑装置可以是安装于上连接架上，也可以是安装于后支架上，安装方式可以是固定的也可以是可拆卸的。例如支撑装置可以是座位布兜，设置于第一支架15与第二支架16交叉处的上部之间。
第一转轴21、第二转轴22与第三转轴23、第四转轴24相互平行。第五转轴25与第一转轴21相空间垂直。本实施例中，转动关节17、第一支架15与第二支架16通过第五转轴25相同轴连接。
车架1还包括连杆19，连杆19的上端部与上连杆19架相转动连接。连杆19相对上连杆19绕一沿着横向延伸的第六转轴26转动，第六转轴26位于第二转轴22与第四转轴24之间。连杆19的下部与前支架11相转动地连接。连杆19的下部与前支架11相转动连接，且连杆19相对前支架11绕一沿着横向延伸的第七转轴27转动，第七转轴27位于第三转轴23与第一转轴21之间。
连杆的下部也可以与滑动件相可转动地连接，本领域技术人员根据图1所示的结构对连杆1的下部进行移位即可实现，因此，这种连接方式未采用附图详细展示。
连杆19相对前支架11也可以绕第三转轴23转动。推杆架12、上连接架13、连杆19与前支架11构成四连杆机构，进一步使得车架1在展开位置下的刚性较强。如锁定装置设置于推杆架12与前支架11之间，当锁定装置将车架1锁定于展开位置下，推杆架12、上连接架13、连杆19与前支架11之间形成较稳定的三角形结构。锁定装置还可以设置于推杆架12与上连接架13之间。锁定装置的具体结构不是本发明的重点，只要是能够将两个相对转动的部件之间锁定的结构都能适用。
前支架11位于第五转轴25的下方，并且夹设于第一支架15与第二支架16之间。
滑动件18的两侧部分别开有第一通孔与第二通孔，第一通孔与第二通孔可以孔径较大的喇叭孔。第一支架15插在第一通孔内，第二支架16插在第二通孔内。第一通孔内具有第一限位面，第二通孔内具有第二限位面，当车架1处于展开状态下，第一支架15低在第一限位面上，第二支架16抵在第二限位面上，使得车架1在展开位置下较稳定。
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 (9)

1、一种幼儿推车，包括具有可折叠的车架（1）、前轮组件（2）、后轮组件（3,4）、用于将所述的车架（1）锁定于展开位置下的锁定装置、设置于所述的车架（1）上的用于支撑人体的支撑装置，其特征在于：所述的车架（1）包括：
前支架（11）,所述的前轮组件（2）设置于前支架（11）的前部；
推杆架（12），所述的推杆架（12）的下部与前支架（11）的后部可绕第一转轴（21）相对转动地连接；
上连接架（13），所述的上连接架（13）位于前支架（11）的上方，所述的上连接架（13）的后部与推杆架（12）可绕第二转轴（22）相对转动地连接；
滑动件（18），所述的滑动件（18）与前支架（11）可绕第三转轴（23）相对转动地连接；
后支架（14），后轮组件(3,4)设置于后支架（14）的下部，所述的后支架（14）是由第一支架（15）与第二支架（16）可绕第五转轴（25）相对转动地连接所构成的，所述的第五转轴（25）位于滑动件（18）的上方，所述的第一支架（15）与所述的第二支架（16）分别可滑动地连接于滑动件（18）的两侧部，所述的第一支架（15）或者所述的第二支架（16）上枢轴连接有转动关节（17），所述的转动关节（17）与上连接架（13）的前部可绕第四转轴（24）相对转动地连接；
其中，第一转轴（21）、第二转轴（22）与第三转轴（23）、第四转轴（24）分别沿着横向延伸。
2、根据权利要求1所述的幼儿推车，其特征在于：第一转轴（21）、第二转轴（22）、第三转轴（23）、第四转轴（24）相互平行。
3、根据权利要求1所述的幼儿推车，其特征在于：第五转轴（25）与第一转轴（21）相空间垂直。
4、根据权利要求1所述的幼儿推车，其特征在于：转动关节（17）、第一支架（15）与第二支架（16）相同轴连接并可绕第五转轴（25）相对转动。
5、根据权利要求1所述的幼儿推车，其特征在于：车架（1）还包括连杆（19），连杆（19）的上端部与上连杆（19）架可绕一第六转轴（26）相对转动地连接，所述第六转轴（26）沿着横向延伸，连杆（19）的下部与前支架（11）相转动地连接。
6、根据权利要求5所述的幼儿推车，其特征在于：连杆（19）的下部与前支架（11）可绕一第七转轴（27）相对转动，该第七转轴沿横向延伸，第七转轴（27）位于第三转轴（23）与第一转轴（21）之间。
7、根据权利要求1所述的幼儿推车，其特征在于：前支架（11）位于第五转轴（25）的下方，并且穿过第一支架（15）与第二支架（16）之间形成的空间。
8、根据权利要求1所述的幼儿推车，其特征在于：滑动件（18）的两侧部分别开有第一通孔与第二通孔，第一支架（15）插在第一通孔内，第二支架（16）插在第二通孔内。
9、根据权利要求8所述的幼儿推车，其特征在于：第一通孔内具有第一限位面，第二通孔内具有第二限位面，当车架（1）处于展开状态下，第一支架（15）抵在第一限位面上，第二支架（16）抵在第二限位面上。
PCT/CN2012/077945 2011-09-30 2012-06-29 幼儿推车 WO2013044662A1 (zh)

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