WO2014047947A1 - 儿童推车 - Google Patents

儿童推车 Download PDF

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Publication number
WO2014047947A1
WO2014047947A1 PCT/CN2012/082500 CN2012082500W WO2014047947A1 WO 2014047947 A1 WO2014047947 A1 WO 2014047947A1 CN 2012082500 W CN2012082500 W CN 2012082500W WO 2014047947 A1 WO2014047947 A1 WO 2014047947A1
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WO
WIPO (PCT)
Prior art keywords
link
wheel bracket
bracket
frame
push rod
Prior art date
Application number
PCT/CN2012/082500
Other languages
English (en)
French (fr)
Inventor
吉跃
Original Assignee
好孩子儿童用品有限公司
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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
Publication of WO2014047947A1 publication Critical patent/WO2014047947A1/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
    • B62B7/08—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
    • 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
    • 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

Definitions

  • the invention relates to a stroller.
  • the stroller generally includes a foldable cart frame and a wheel assembly disposed at the bottom of the cart frame.
  • the cart frame is locked by a locking device when deployed.
  • the technical problem to be solved by the present invention is to provide a stroller that can be folded and opened quickly and easily.
  • a first aspect of the present invention provides a stroller including a foldable frame, a locking device for locking the frame when deployed, and a wheel assembly disposed at the bottom of the frame, the frame including Two side brackets on both sides and a cross bracket connected between the two side brackets.
  • Each of the side brackets includes a front wheel bracket rotatably provided with a first sliding member, a rear wheel bracket rotatably provided with a second sliding member, and a push rod slidably coupled to the first sliding member and the second sliding member respectively a side link that is rotatably connected to the push rod and the rear wheel bracket at both ends, and the front portion of the rear wheel bracket is rotatably connected to the front wheel bracket.
  • the cross bracket includes a cross bracing assembly
  • the cross bracing assembly includes a first oblique link and a second oblique link that are intersected and rotatably connected at the intersection, and the two ends of the first oblique link are respectively connected with the front wheel bracket of one side and The push rods on the other side are rotatably connected, and the two ends of the second oblique link are respectively rotatably connected to the front wheel bracket on the other side and the push rod on one side.
  • the first sliding member or the second sliding member is locked with the push rod through the locking device, and the frame formed by the side bracket and the horizontal bracket forms a rigid body; the child needs to be folded
  • the locking device is unlocked, the push rod can slide, and the side link and the cross brace assembly are moved by the sliding of the push rod, and the movement of the cross brace assembly causes the side brackets on both sides to close together, and finally the frame is folded and folded.
  • the push rod is moved, and the push rod drives the side link and the cross brace assembly to move, so that the frame can be deployed quickly.
  • the cross bracket further includes an auxiliary brace assembly including an upper cross bracing and a lower cross bracing, and the two ends are respectively rotatably connected to the longitudinal bar of the upper cross bracing and the lower cross bracing
  • the upper cross bracing includes a first transverse link and a second transverse link each having an inner end and an outer end
  • the lower cross brace comprising a third transverse link, a fourth transverse link, a first transverse link, and a second each having an inner end and an outer end
  • the inner ends of the horizontal links are rotatably connected, and the outer ends of the first horizontal link and the second horizontal link are respectively rotatably connected to the rear wheel brackets on both sides, and the inner ends of the third horizontal link and the fourth horizontal link are respectively Rotating connection, the outer ends of the third horizontal link and the fourth horizontal link are rotatably connected to the rear wheel brackets on both sides.
  • the upper cross bracing, the lower cross bracing and the vertical connecting bar are linked together with the folding or unfolding of the rear wheel bracket.
  • the auxiliary brace component is also folded and folded, in the car.
  • the auxiliary support assembly is also deployed to provide lateral auxiliary support to the frame.
  • the auxiliary brace assembly further includes a first reinforcing bar and a second reinforcing bar, one end of the first reinforcing bar being rotatably and slidably coupled to the longitudinal link, the other end of the first reinforcing bar Rotatingly connected to the connection position of the third horizontal link and the rear wheel bracket, one end of the second reinforcing rod is rotatably and slidably connected to the longitudinal link, and the other end of the second reinforcing rod is rotatably connected to the fourth horizontal link The connection position of the rear wheel bracket.
  • the two reinforcing bars make the auxiliary support assembly more stable when opened.
  • a sliding seat is slidably disposed on the longitudinal link, and one end of the first reinforcing bar is indirectly connected to the longitudinal link by being rotationally coupled to the sliding seat, and one end of the second reinforcing bar is connected to the sliding seat by rotation Indirectly connected to the longitudinal link.
  • the auxiliary brace assembly includes a card member having an opening in a U-shaped longitudinal section, the card member being located at a position where the upper cross brace is coupled to the longitudinal link, and the clip member is coupled to the longitudinal link.
  • the first horizontal link, the second horizontal link and the longitudinal link are connected by a card, and the opening of the card provides a swinging space for the first horizontal link and the second horizontal link.
  • the card member is used as a joint between the longitudinal link, the first horizontal link and the second horizontal link, and the opening thereof limits the range of rotation of each component.
  • the locking device for locking the frame is mounted between the first slider and the push rod or between the second slider and the push rod, although of course the first slider and the second slide
  • the locking device is provided on the piece, and the two locking devices are preferably interlocked, that is, the locking device can be unlocked in one operation.
  • a second aspect of the present invention provides a stroller including a foldable frame, a locking device for locking the frame when deployed, and a wheel assembly disposed at the bottom of the frame, the frame including two on both sides A side bracket and a cross bracket connected between the two side brackets.
  • Each side bracket includes a front wheel bracket rotatably provided with a first sliding member, a rear wheel bracket rotatably provided with a second sliding member, and a sliding connection with the first sliding member and the second sliding member respectively
  • the push rod and the two side ends are respectively rotatably connected to the push rod and the front wheel bracket, and the front portion of the rear wheel bracket is rotatably connected to the front wheel bracket.
  • the cross bracket includes a cross bracing assembly
  • the cross bracing assembly includes a first oblique link and a second oblique link that are intersected and rotatably connected at the intersection, and the two ends of the first oblique link are respectively connected with the rear wheel bracket of one side and The push rods on the other side are rotatably connected, and the two ends of the second oblique link are respectively rotatably connected to the rear wheel bracket on the other side and the push rod on one side.
  • the technical solution is similar in structure to the first technical solution, and the operation mode is basically the same, and the difference is that the installation positions of the side link and the cross bracing assembly are interchanged.
  • a third aspect of the present invention provides a stroller including a foldable frame, a locking device for locking the frame when deployed, and a wheel assembly disposed at the bottom of the frame, the frame including two on both sides A side bracket and a cross bracket connected between the two side brackets.
  • Each of the side brackets includes a front wheel bracket rotatably provided with a first sliding member, a rear wheel bracket rotatably provided with a second sliding member, and a push rod slidably coupled to the first sliding member and the second sliding member, respectively a side link that is rotatably connected to the rear of the push rod and the rear wheel bracket, respectively, and the rear wheel bracket is rotatably coupled to the front wheel bracket.
  • the cross bracket includes a cross bracing assembly
  • the cross bracing assembly includes a first oblique link and a second oblique link that are intersected and rotatably connected at the intersection, the two ends of the first oblique link and the rear wheel bracket of one side respectively
  • the front and the other side of the push rod are rotatably connected, and the two ends of the second oblique link are respectively rotatably connected to the front part of the rear side wheel bracket of the other side and the push rod of one side.
  • the difference between the technical solution and the first technical solution is that the cross bracing assembly and the side connecting rod are respectively connected to the rear wheel bracket and the push rod in tandem.
  • the positions of the cross bracing assembly and the side links can also be interchanged.
  • the present invention has the following advantages compared with the prior art: the structure of the frame is simple, the folding and opening can be completed quickly, the folded volume is small, and the folded frame can still be self-supporting, which is very convenient. Practical application.
  • Figure 1 is a side elevational view of the cart frame in an unfolded state in accordance with a first embodiment of the present invention
  • Figure 2 is a perspective view of the frame shown in Figure 1;
  • Figure 3 is a perspective view of the frame of Figure 1 in a folding process
  • Figure 4 is a side view of the frame of Figure 1 in a folded state
  • Figure 5 is a perspective view of the folded frame shown in Figure 4.
  • Figure 6 is a side elevational view of the cart frame in an unfolded state in accordance with a second embodiment of the present invention.
  • Figure 7 is a side elevational view of the frame of Figure 6 during folding
  • Figure 8 is a side elevational view of the cart frame in an unfolded state in accordance with a third embodiment of the present invention.
  • Figure 9 is a side elevational view of the frame in a folded state.
  • the frame is mainly the frame of the stroller.
  • the bottom of the frame has wheel components.
  • tarpaulins and seats will be added to the frame. It is well known to those skilled in the art and is therefore not shown in the figures.
  • Figure 1-2 reflects the frame in the unfolded state
  • Figure 3 reflects the frame in the process of folding
  • the structure of the frame during the deployment process can also be seen in Figure 3
  • Figure 4-5 reflects The frame in the folded state.
  • the frame includes side brackets on both sides and a cross bracket between the side brackets connected to the sides.
  • Each side bracket mainly comprises a front wheel bracket 2, a rear wheel bracket 3, a push rod 1 and a side link 5, and the front portion of the rear wheel bracket 3 is rotatably connected with the front wheel bracket 2.
  • a second sliding member 8 is rotatably connected to the rear wheel bracket 3, and a front sliding member 7 is rotatably connected to the front wheel bracket 2.
  • the first sliding member 7 is located at the second sliding member 8.
  • the push rod 1 is slidably coupled to the first slider 7 and the second slider 8.
  • One end of the side link 5 is rotatably connected with the push rod 1 and the other end is rotatably connected with the rear portion of the rear wheel bracket 3, in order to prevent the frame from being stuck at the time of folding, the other end of the side link 5 is preferably connected.
  • the cross bracket includes a cross brace assembly 4, and the cross brace assembly 4 includes a first oblique link 41 and a second oblique link 42 that are intersected and rotatably connected at the intersection, and the two ends of the first oblique link 41 are respectively opposite to one side
  • the front wheel bracket 2 is rotatably connected to the push rod 1 on the other side, and the two ends of the second oblique link 42 are rotatably connected to the front wheel bracket 2 on the other side and the push rod 1 on the other side, respectively.
  • the cross bracket further includes an auxiliary brace assembly 6 including an upper cross bracing and a lower cross bracing, and longitudinal links 65 that are respectively rotatably coupled to the upper cross braces and the lower cross braces.
  • the upper cross member includes a first horizontal link 61 and a second horizontal link 62 each having an inner end and an outer end, and the inner ends of the first horizontal link 61 and the second horizontal link 62 are rotatably connected, and the first horizontal link 61.
  • the outer ends of the second horizontal link 62 are respectively rotatably connected to the rear wheel brackets 3 on both sides.
  • the lower cross brace includes a third cross link 63 and a fourth cross link 64 each having an inner end and an outer end, and the inner ends of the third cross link 63 and the fourth cross link are rotatably connected, respectively Rotate the rear wheel bracket 3 attached to both sides.
  • the auxiliary support assembly 6 further includes a first reinforcing rod 66 and a second reinforcing rod 67.
  • One end of the first reinforcing rod 66 is rotatably and slidably coupled to the longitudinal link 65, and the other end of the first reinforcing rod 66 is rotatably connected to the first a connecting position of the three horizontal links 63 and one of the rear wheel brackets 3, one end of the second reinforcing rod 67 is rotatably and slidably coupled to the longitudinal link 65, and the other end of the second reinforcing rod 67 is rotatably connected to the fourth The connection position of the horizontal link 64 to the rear wheel bracket 3 on the other side.
  • a sliding seat 69 is slidably disposed on the longitudinal link 65.
  • One end of the first reinforcing rod 66 is indirectly connected to the longitudinal link 65 by being rotatably coupled to the sliding seat 69.
  • One end of the second reinforcing rod 67 is also indirectly connected to the vertical link 65 by being rotationally coupled to the sliding seat 69.
  • the auxiliary brace assembly 6 further includes a card member 68 having an opening with a U-shaped longitudinal section, the card member 68 being disposed at a position where the upper cross brace is connected to the longitudinal link 65, and the clip 68 and the longitudinal link 65 are disposed.
  • the first horizontal link 61, the second horizontal link 62 and the vertical link 65 are connected by a card member 68.
  • the opening of the card member 68 provides a first horizontal link 61 and a second horizontal link 62. Swing space.
  • the frame is locked by a locking device when the frame is deployed, and the locking device is constructed in a variety of ways, and those skilled in the art can arbitrarily adopt a well-known manner according to actual conditions, and thus are not shown in the drawings.
  • the locking device may be installed between the first slider 7 and the push rod 1, or may be installed between the second slider 8 and the push rod 1, even in the first slider 7 and the second A locking device is mounted on the slider 8 for double insurance.
  • the folding frame of the cart is: unlocking the locking device, sliding the push rod 1 downward relative to the first sliding member 7 and the second sliding member 8, and driving the side link 5 and the cross brace assembly 4 to rotate.
  • the front wheel bracket 2 and the rear wheel bracket 3 are relatively rotated and close together.
  • the cross bracing assembly 4 rotates, the first oblique link 41 and the second oblique link 42 are gathered, so that the side brackets on both sides are close to each other.
  • the auxiliary support assembly 6 is also folded and folded, and the frame is finally converted into the folded state shown in Figs. 4 and 5 after passing through the intermediate position shown in Fig. 3.
  • the frame is folded and folded in both the horizontal and vertical directions, so that the folded volume is small.
  • the side bracket and the cross bracket are generally gathered toward the center when folded, the folded frame can still stand on its own.
  • the frame is unfolded by sliding the push rod 1 upward, driving the side link 5 and the cross brace assembly 4 to rotate, and the front wheel bracket 2 and the rear wheel bracket 3 are gradually unfolded, and are opened by the cross brace assembly 4 while rotating.
  • the frame is opened in the lateral direction and the auxiliary support assembly 6 is also opened laterally until the final frame reaches the deployed state shown in Figures 1 and 2, and the frame is locked by the locking device.
  • the frame of the stroller is constructed similarly to the frame of Embodiment 1, except that the side link 5 and the cross brace assembly 4 are interchanged with each other, i.e., the side.
  • the two ends of the connecting rod 5 are respectively rotatably connected with the push rod 1 and the front wheel bracket, and the first oblique link 41 and the second oblique link 42 constituting the cross bracing assembly 4 are respectively rotated and connected to the two sides.
  • the configuration of the frame of the stroller according to this embodiment is substantially similar to that of the embodiment 1 and the embodiment 2, and the difference from the embodiment 1 is that the cross brace assembly 4 is set to Connected between the push rod 1 and the rear wheel bracket 3, that is, the two ends of the side link 5 are respectively rotatably connected with the rear portions of the push rod 1 and the rear wheel bracket 3, and the first oblique link 41 and the second oblique joint The rods 42 are respectively rotated and connected to the front and side pushers 1 of the rear wheel brackets 3 on both sides.
  • This embodiment can also be modified by other variations, for example, the positions of the side link 5 and the cross-member 4 are mutually interchangeable.
  • the person skilled in the art can change the embodiment to the modification of the embodiment 2, and the embodiment can be modified by itself.
  • the deformation is not reflected in detail in the drawings.
  • the folding and opening manner of the frame of the cart according to the embodiment is also substantially the same as that of the embodiment 1, and details are not described herein again.

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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

一种儿童推车，包括可折叠的车架、用于将车架在展开时锁定的锁定装置，车架包括位于两侧的侧支架和连接于两个侧支架之间的横支架。侧支架包括可转动地设置有第一滑动件（7）的前轮支架（2）、可转动地设置有第二滑动件（8）的后轮支架（3）、与第一滑动件（7）和第二滑动件（8）分别相滑动连接的推杆（1）、两端分别与推杆（1）和后轮支架（3）相转动连接的侧连杆（5），后轮支架（3）的前部转动连接于前轮支架（2）。横支架包括十字撑组件（4），十字撑组件（4）包括相交叉并在交叉处相转动连接的第一斜连杆（41）和第二斜连杆（42），两个斜连杆以交叉的方式分别转动连接于两侧的前轮支架（2）和推杆（1）。车架的结构简洁，折叠和打开都可快速完成，折叠后的体积小，且折叠后的车架仍可自立，非常便于实际应用。

Description

儿童推车
技术领域
本发明涉及一种童车。
背景技术
现有技术中，童车一般包括可折叠的推车车架、设置于推车车架底部的轮组件，推车车架展开时通过一锁定装置来锁定。能使推车车架折叠的结构有很多种，而在童车行业的发展中，如何使推车车架更易折叠、如何使其折叠后的体积变小以及使推车车架的结构更简洁等一直是追求和探讨的目标。
发明内容
本发明要解决的技术问题是提供一种可快速且方便地折叠及打开的儿童推车。
为解决上述技术问题，本发明第一方面提供一种儿童推车，包括可折叠的车架、用于将车架在展开时锁定的锁定装置、设置于车架底部的轮组件，车架包括位于两侧的两个侧支架和连接于两个侧支架之间的横支架。每个侧支架包括可转动地设置有一第一滑动件的前轮支架、可转动地设置一第二滑动件的后轮支架、与第一滑动件和第二滑动件分别相滑动连接的推杆、两端分别与推杆和后轮支架相转动连接的侧连杆，后轮支架的前部转动连接于前轮支架。横支架包括十字撑组件，十字撑组件包括相交叉并在交叉处相转动连接的第一斜连杆和第二斜连杆，第一斜连杆的两端分别与一侧的前轮支架和另一侧的推杆相转动连接，第二斜连杆的两端分别与另一侧的前轮支架和一侧的推杆相转动连接。在儿童推车处于正常使用状态时，将第一滑动件或第二滑动件通过锁定装置与推杆锁住，主体由侧支架和横支架构成的车架便构成一刚性体；需要折叠该儿童推车时，将锁定装置解锁，推杆便可滑动，通过推杆的滑动带动侧连杆与十字撑组件运动，十字撑组件的运动使得两侧的侧支架相互靠拢，最终使车架折叠收拢；需要打开该儿童推车时，移动推杆，推杆带动侧连杆、十字撑组件运动，使得车架可迅速展开。
在某些优选实施例中，横支架还包括辅撑组件，辅撑组件包括上横撑和下横撑、两端分别转动连接于上横撑和下横撑的纵连杆，上横撑包括各自具有内端和外端的第一横连杆、第二横连杆，下横撑包括各自具有内端和外端的第三横连杆、第四横连杆，第一横连杆、第二横连杆的内端相转动连接，第一横连杆、第二横连杆的外端分别转动连接于两侧的后轮支架，第三横连杆、第四横连杆的内端相转动连接，第三横连杆、第四横连杆的外端转动连接于两侧的后轮支架。在车架进行折叠或打开的操作时，上横撑、下横撑以及纵连杆会随着后轮支架的收拢或展开而联动，在车架折叠时，辅撑组件也折叠收拢，在车架展开时，辅撑组件也会展开，以对车架提供横向的辅助支撑。
在某些进一步优选的实施例中，辅撑组件还包括第一加强杆和第二加强杆，第一加强杆的一端可转动且可滑动地连接于纵连杆，第一加强杆的另一端转动连接于第三横连杆与后轮支架的连接位置，第二加强杆的一端可转动且可滑动地连接于纵连杆，第二加强杆的另一端转动连接于第四横连杆与后轮支架的连接位置。两个加强杆使得辅撑组件在打开时更稳固。
更优选地，纵连杆上可滑动地设置有一滑动座，第一加强杆的一端通过转动连接于滑动座而与纵连杆相间接连接，第二加强杆的一端通过转动连接于滑动座而与纵连杆相间接连接。
在某些进一步优选的实施例中，辅撑组件包括一纵截面呈U形的具有开口的卡件，该卡件位于上横撑与纵连杆相连接的位置，卡件与纵连杆相固定连接，第一横连杆、第二横连杆与纵连杆通过卡件相连接，卡件的开口给第一横连杆、第二横连杆提供摆动空间。该卡件既作为纵连杆、第一横连杆、第二横连杆等部件之间相互连接的接头，同时其开口又对各部件的转动范围进行了限制。
在某些优选的实施例中，用于锁定车架的锁定装置安装在第一滑动件与推杆之间或第二滑动件与推杆之间，当然也可以在第一滑动件和第二滑动件上都带有锁定装置，而两个锁定装置最好是联动的，也就是说，一次操作即可将连个锁定装置都解锁。
本发明第二方面提供一种儿童推车，包括可折叠的车架、用于将车架在展开时锁定的锁定装置、设置于车架底部的轮组件，车架包括位于两侧的两个侧支架和连接于两个侧支架之间的横支架。每个侧支架包括前轮支架可转动地设置有一第一滑动件的前轮支架、可转动地设置有一第二滑动件的后轮支架、与第一滑动件和第二滑动件分别相滑动连接的推杆、两端分别与推杆和前轮支架相转动连接的侧连杆，后轮支架的前部转动连接于前轮支架。横支架包括十字撑组件，十字撑组件包括相交叉并在交叉处相转动连接的第一斜连杆和第二斜连杆，第一斜连杆的两端分别与一侧的后轮支架和另一侧的推杆相转动连接，第二斜连杆的两端分别与另一侧的后轮支架和一侧的推杆相转动连接。该技术方案与第一种技术方案的结构相似，操作方式也基本相同，区别为：将侧连杆和十字撑组件的安装位置进行了互换。
本发明第三方面提供一种儿童推车，包括可折叠的车架、用于将车架在展开时锁定的锁定装置、设置于车架底部的轮组件，车架包括位于两侧的两个侧支架和连接于两个侧支架之间的横支架。每个侧支架包括可转动地设置有一第一滑动件的前轮支架、可转动地设置有一第二滑动件的后轮支架、与第一滑动件和第二滑动件分别相滑动连接的推杆、两端分别与推杆和后轮支架的后部相转动连接的侧连杆，后轮支架可转动地连接于前轮支架。横支架包括十字撑组件，十字撑组件包括相交叉并在交叉处相转动连接的第一斜连杆和第二斜连杆，第一斜连杆的两端分别与一侧的后轮支架的前部和另一侧的推杆相转动连接，第二斜连杆的两端分别与另一侧的后年轮支架的前部和一侧的推杆相转动连接。该技术方案与第一技术方案的区别为：十字撑组件和侧连杆一前一后地分别连接于后轮支架与推杆上。在该第三技术方案中，十字撑组件和侧连杆的位置同样可以相互调换。
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：车架的结构简洁，折叠和打开都可快速完成，折叠后的体积小，且折叠后的车架仍可自立，非常便于实际应用。
附图说明
附图1为根据本发明的第一实施例的推车车架处于展开状态的侧视图；
附图2为图1所示车架的立体图；
附图3为图1所示车架处于折叠过程中的立体图；
附图4为图1所示车架处于折叠状态的侧视图；
附图5为图4所示的折叠后的车架的立体图；
附图6为根据本发明的第二实施例的推车车架处于展开状态的侧视图；
附图7为图6所示车架在折叠过程中的侧视图；
附图8为根据本发明的第三实施例的推车车架处于展开状态的侧视图；
附图9图8所示车架处于折叠状态的侧视图。
其中：1、推杆；2、前轮支架；3、后轮支架；4、十字撑组件；41、第一斜连杆；42、第二斜连杆；5、侧连杆；6、辅撑组件；61、第一横连杆；62、第二横连杆；63、第三横连杆；64、第四横连杆；65、纵连杆；66、第一加强杆；67、第二加强杆；68、卡件；69、滑动座；7、第一滑动件；8、第二滑动件。
具体实施方式
以下结合附图对根据本发明的几个优选实施例进行详细描述。
实施例1
参照图1-5所示，图中所示主要为儿童推车的车架，车架的底部带有车轮组件，在实际应用中，车架上会加设篷布以及座位等，由于这些早已为本领域技术人员所熟知，因此未在图中显示。图1-2反映了在展开状态下的车架，图3反映了处于折叠过程中的车架，而车架处于展开过程中时的结构也可参见图3所示，图4-5反映了在折叠状态下的车架。
各图中，车架包括位于两侧的侧支架和连接于两侧的侧支架之间的横支架。
各侧支架主要包括前轮支架2、后轮支架3、推杆1、侧连杆5，后轮支架3的前部与前轮支架2相转动连接。后轮支架3上可转动地连接一第二滑动件8，前轮支架2上可转动地连接一第一滑动件7，在本实施例中，第一滑动件7位于第二滑动件8的上方，推杆1与第一滑动件7、第二滑动件8可相对滑动地连接。侧连杆5的一端与推杆1相转动连接，另一端与后轮支架3的后部相转动连接，为防止车架在折叠时出现卡死点，侧连杆5的另一端最好连接于后轮支架3的后部。
横支架包括十字撑组件4，十字撑组件4包括相交叉并在交叉处相转动连接的第一斜连杆41和第二斜连杆42，第一斜连杆41的两端分别与一侧的前轮支架2和另一侧的推杆1相转动连接，第二斜连杆42的两端分别与另一侧的前轮支架2和一侧的推杆1相转动连接。
在本优选实施例中，横支架还包括辅撑组件6，该辅撑组件6包括上横撑和下横撑、两端分别转动连接于上横撑和下横撑的纵连杆65。上横撑包括各自具有内端和外端的第一横连杆61和第二横连杆62，第一横连杆61、第二横连杆62的内端相转动连接，第一横连杆61、第二横连杆62的外端分别转动连接于两侧的后轮支架3。下横撑包括各自具有内端和外端的第三横连杆63和第四横连杆64，第三横连杆63和第四横连杆的内端相转动连接，两者的外端分别转动连接于两侧的后轮支架3。
辅撑组件6还包括第一加强杆66和第二加强杆67，第一加强杆66的一端可转动且可滑动地连接于纵连杆65，第一加强杆66的另一端转动连接于第三横连杆63与一侧的后轮支架3的连接位置，第二加强杆67的一端可转动且可滑动地连接于纵连杆65，第二加强杆67的另一端转动连接于第四横连杆64与另一侧的后轮支架3的连接位置。
见图2、3及5所反映的，纵连杆65上可滑动地设置有一滑动座69，第一加强杆66的一端通过转动连接于滑动座69而与纵连杆65相间接连接，第二加强杆67的一端也通过转动连接于滑动座69而与纵连杆65相间接连接。
优选地，辅撑组件6还包括一纵截面呈U形的具有开口的卡件68，该卡件68安排在上横撑与纵连杆65相连接的位置，卡件68与纵连杆65相固定连接，第一横连杆61、第二横连杆62与纵连杆65通过卡件68相连接，卡件68的开口给第一横连杆61、第二横连杆62提供一摆动空间。
在车架展开时通过一锁定装置来将车架锁定，而锁定装置的构造有很多种，本领域技术人员可根据实际情况任意采用一种熟知的方式，因而未在图中显示。在本实施例中，锁定装置可以安装在第一滑动件7与推杆1之间，也可以安装在第二滑动件8与推杆1之间，甚至可以在第一滑动件7和第二滑动件8上都安装锁定装置，以双重保险。
根据本实施例的推车的车架折叠方式是：将锁定装置解锁，推杆1相对第一滑动件7、第二滑动件8向下滑动，带动侧连杆5和十字撑组件4转动，前轮支架2和后轮支架3随之相对转动并靠拢，在十字撑组件4转动的同时，第一斜连杆41和第二斜连杆42会收拢，使得两侧的侧支架相互靠拢，辅撑组件6也折叠收拢，车架经过图3所示的中间位置后，最终转换为图4和5所示的折叠状态。在折叠状态下，车架在横向和纵向都经过折叠收拢，因而折叠后的体积较小。另外，由于在折叠时，侧支架和横支架均大致朝向中部收拢，因而折叠后车架仍可自立。
车架的展开方式是：将推杆1向上滑动，带动侧连杆5和十字撑组件4转动，前轮支架2和后轮支架3便逐渐展开，通过十字撑组件4在转动的同时打开，车架便在横向打开，辅撑组件6也横向打开，直至最终车架到达图1和2所示的展开状态时，通过锁定装置将车架锁定。
实施例2
参照图6-7所示，根据该实施例的儿童推车的车架的构造与实施例1的车架相似，区别在于将侧连杆5和十字撑组件4相互调换了位置，即：侧连杆5的两端分别与推杆1和前轮支架相转动连接,组成十字撑组件4的第一斜连杆41和第二斜连杆42采用交叉的方式分别转动连接于两侧的后轮支架3的后部和两侧的推杆1。
根据该实施例的推车的车架折叠方式和打开方式与实施例1完全相同，在此不再赘述。
实施例3
参照图8-9所示，根据该实施例的儿童推车的车架的构造与实施例1和实施例2的车架都基本相似，与实施例1的区别在于将十字撑组件4设置为连接于推杆1和后轮支架3之间，即：侧连杆5的两端分别与推杆1和后轮支架3的后部相转动连接,第一斜连杆41和第二斜连杆42采用交叉的方式分别转动连接于两侧的后轮支架3的前部和两侧的推杆1。
该实施例还可由其它变形，例如，将侧连杆5和十字撑组件4的位置相互调换，本领域技术人员参照实施例1变换为实施例2的改动方式，可自行改动本实施例，因此未采用附图详细反映其变形。
根据该实施例的推车的车架折叠方式和打开方式与实施例1也基本相同，在此不再赘述。
如上所述，我们完全按照本发明的宗旨进行了说明，但本发明并非局限于上述实施例和实施方法。相关技术领域的从业者可在本发明的技术思想许可的范围内进行不同的变化及实施。

Claims (1)

  1. 1. 一种儿童推车，包括可折叠的车架、用于将所述的车架在展开时锁定的锁定装置、设置于车架底部的轮组件，所述车架包括位于两侧的两个侧支架和连接于两个侧支架之间的横支架，其特征在于：
    每个所述的侧支架包括
    前轮支架，所述前轮支架上可转动地设置一第一滑动件；
    后轮支架，所述后轮支架的前部转动连接于前轮支架，所述后轮支架上可转动地设置一第二滑动件；
    推杆，所述推杆与第一滑动件和第二滑动件分别相滑动连接；
    侧连杆，所述侧连杆的两端分别与推杆和后轮支架相转动连接；
    所述横支架包括十字撑组件，所述十字撑组件包括相交叉并在交叉处相转动连接的第一斜连杆和第二斜连杆，所述第一斜连杆的两端分别与一侧的前轮支架和另一侧的推杆相转动连接，所述第二斜连杆的两端分别与另一侧的前轮支架和一侧的推杆相转动连接。
    2. 一种儿童推车，包括可折叠的车架、用于将所述的车架在展开时锁定的锁定装置、设置于车架底部的轮组件，所述车架包括位于两侧的两个侧支架和连接于两个侧支架之间的横支架，其特征在于：
    每个所述的侧支架包括
    前轮支架，所述前轮支架上可转动地设置一第一滑动件；
    后轮支架，所述后轮支架的前部转动连接于前轮支架，所述后轮支架上可转动地设置一第二滑动件；
    推杆，所述推杆与第一滑动件和第二滑动件分别相滑动连接；
    侧连杆，所述侧连杆的两端分别与推杆和前轮支架相转动连接；
    所述横支架包括十字撑组件，所述十字撑组件包括相交叉并在交叉处相转动连接的第一斜连杆和第二斜连杆，所述第一斜连杆的两端分别与一侧的后轮支架的后部和另一侧的推杆相转动连接，所述第二斜连杆的两端分别与另一侧的后轮支架的后部和一侧的推杆相转动连接。
    3. 一种儿童推车，包括可折叠的车架、用于将所述的车架在展开时锁定的锁定装置、设置于车架底部的轮组件，所述车架包括位于两侧的两个侧支架和连接于两个侧支架之间的横支架，其特征在于：
    每个所述的侧支架包括
    前轮支架，所述前轮支架上可转动地设置一第一滑动件；
    后轮支架，所述后轮支架可转动地连接于前轮支架，所述后轮支架上可转动地设置一第二滑动件；
    推杆，所述推杆与第一滑动件和第二滑动件分别相滑动连接；
    侧连杆，所述侧连杆的两端分别与推杆和后轮支架的后部相转动连接；
    所述横支架包括十字撑组件，所述十字撑组件包括相交叉并在交叉处相转动连接的第一斜连杆和第二斜连杆，所述第一斜连杆的两端分别与一侧的后轮支架的前部和另一侧的推杆相转动连接，所述第二斜连杆的两端分别与另一侧的后年轮支架的前部和一侧的推杆相转动连接。
    4. 根据权利要求1-3中任一项所述的儿童推车，其特征在于：所述横支架还包括辅撑组件，所述辅撑组件包括上横撑和下横撑、两端分别转动连接于上横撑和下横撑的纵连杆，所述上横撑包括各自具有内端和外端的第一横连杆、第二横连杆，所述下横撑包括各自具有内端和外端的第三横连杆、第四横连杆，第一横连杆、第二横连杆的内端相转动连接，第一横连杆、第二横连杆的外端分别转动连接于两侧的后轮支架，第三横连杆、第四横连杆的内端相转动连接，第三横连杆、第四横连杆的外端转动连接于两侧的后轮支架。
    5. 根据权利要求4所述的儿童推车，其特征在于：所述辅撑组件还包括第一加强杆和第二加强杆，第一加强杆的一端可转动且可滑动地连接于纵连杆，第一加强杆的另一端转动连接于第三横连杆与后轮支架的连接位置，第二加强杆的一端可转动且可滑动地连接于纵连杆，第二加强杆的另一端转动连接于第四横连杆与后轮支架的连接位置。
    6. 根据权利要求5所述的儿童推车，其特征在于：纵连杆上可滑动地设置有一滑动座，第一加强杆的一端通过转动连接于滑动座而与纵连杆相间接连接，第二加强杆的一端通过转动连接于滑动座而与纵连杆相间接连接。
    7. 根据权利要求4所述的儿童推车，其特征在于：所述辅撑组件包括一纵截面呈U形的具有开口的卡件，该卡件位于上横撑与纵连杆相连接的位置，卡件与纵连杆相固定连接，第一横连杆、第二横连杆与纵连杆通过卡件相连接，卡件的开口给第一横连杆、第二横连杆提供摆动空间。
    8. 根据权利要求1-3中任一项所述的儿童推车，其特征在于：所述锁定装置安装在第一滑动件与推杆之间或第二滑动件与推杆之间。
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CN106697031A (zh) * 2017-01-03 2017-05-24 好孩子儿童用品有限公司 一种折叠推车
CN107351889A (zh) * 2017-08-16 2017-11-17 李兰 应用连杆锁紧机构的折叠手推车
CN108327771A (zh) * 2018-03-19 2018-07-27 安徽酷豆丁科技发展股份有限公司 可折叠童车
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CN107042839A (zh) * 2016-12-06 2017-08-15 好孩子儿童用品有限公司 双人儿童推车
CN107757690A (zh) * 2017-10-19 2018-03-06 好孩子儿童用品有限公司 一种儿童推车
CN107856728A (zh) * 2017-10-19 2018-03-30 好孩子儿童用品有限公司 儿童推车
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