WO2017107506A1

WO2017107506A1 - Baby stroller and collapsible mechanism thereof, and method of collapsing and folding baby stroller

Info

Publication number: WO2017107506A1
Application number: PCT/CN2016/095072
Authority: WO
Inventors: 赵国松
Original assignee: 浙江晨辉婴宝儿童用品有限公司
Priority date: 2015-12-24
Filing date: 2016-08-13
Publication date: 2017-06-29

Abstract

A baby stroller and collapsible mechanism thereof, and a method of collapsing and folding a baby stroller. The collapsible mechanism comprises two side frames and horizontal rods (70, 80, 25, 65). The side frames comprise front lower rods (10), back lower rods (20) and push rods. A front support rod (30) and a back support rod (40) are connected between the front lower rod (10) and the push rod to form a collapsible first 4-rod mechanism. A sequentially connected first connection rod (31) and second connection rod (32) pass between the front lower rod (10) and the back lower rod (20) to form a second 4-rod mechanism. One end of the first connection rod (31) is fixedly connected to or integrated with a lower end of the front support rods (30). The first 4-rod mechanism arranged in a folded state and a back lower rod (20) are stacked in layers at an upper side and a lower side of the front lower rod (10), respectively. An upper end of the back support rod (40) and a middle portion of the push rod are fixed and locked or unlocked and folded by a lock mechanism. The collapsible mechanism has a reasonable structure, has a decreased size after being folded, and is easy and effortless to operate.

Description

儿童手推车及其收车机构、收车折叠方法Children's trolley and its car-receiving mechanism

技术领域Technical field

本发明涉及儿童推车技术领域，特别是涉及一种能够折叠的儿童手推车及其收车机构、收车折叠方法。The invention relates to the technical field of children's carts, in particular to a foldable child stroller and a vehicle receiving mechanism thereof, and a folding and folding method.

背景技术Background technique

童车是一种为婴儿户外活动提供便利而设计的工具车，是宝宝最喜爱的散步交通工具，更是妈妈带宝宝上街购物时的必须品。随着生产生活的进步，婴儿车也的使用场景的越来越多。The stroller is a kind of tool cart designed to facilitate the outdoor activities of the baby. It is the baby's favorite walking vehicle, and it is also a must for the mother to take the baby to the street. With the progress of production and life, the use of baby strollers is also increasing.

公开号为CN101544242的中国专利文献公开了一种折叠式童车，属于折叠机构结构技术领域。一种折叠式童车，包括推杆以及底部带有轮子的前轮支架和后轮支架，特征在于前轮支架和后轮支架通过中心盘与上部的推杆活动连接，推杆中部通过侧支撑与底座后端活动连接，前轮支架中部与底座前端活动连接，后轮支架通过后轮支架拉杆与底座中部活动连接，底座通过折叠锁定装置与后轮支架锁定。The Chinese patent publication No. CN101544242 discloses a folding stroller, which belongs to the technical field of folding mechanism structure. A folding stroller comprising a push rod and a front wheel bracket and a rear wheel bracket with wheels at the bottom, wherein the front wheel bracket and the rear wheel bracket are movably connected to the upper push rod through the center disc, and the middle portion of the push rod passes the side support and The rear end of the base is movably connected, and the middle of the front wheel bracket is movably connected with the front end of the base, and the rear wheel bracket is movably connected to the middle of the base through the rear wheel bracket pull rod, and the base is locked with the rear wheel bracket by the folding locking device.

公开号为CN201347112的中国专利文献公开了一种可折叠的童车车架，包括前支架、与前支架转动连接的后支架、与前支架滑动连接的推杆、两端部分别与前支架和推杆转动连接的第一连接杆、一端部与推杆转动连接的坐杆、一端部与推杆转动连接并且另一端部呈弯钩状的至少一个折叠锁钩、设置在前支架上的与折叠锁钩配合的锁销。在折叠捏手解锁和折叠锁钩解锁后，推动推杆下滑，其前端通过连接杆作用下，发生平面移动，通过坐杆，拉动后支架向前推杆靠近，完成折叠过程，当需要支撑童车时，反向操作以上过程，即可完成。The Chinese patent publication No. CN201347112 discloses a foldable stroller frame, comprising a front bracket, a rear bracket rotatably coupled to the front bracket, a push rod slidably coupled to the front bracket, and two ends respectively and a front bracket and a push a first connecting rod that is rotatably connected to the rod, a seat rod that is rotatably connected to the push rod at one end, at least one folding hook that is rotatably connected at one end to the push rod, and has a hook shape at the other end, and is folded on the front bracket Locking pin with lock hook. After the folding handle unlocking and folding the locking hook are unlocked, the push rod is pushed down, and the front end is moved by the connecting rod, and the plane moves. Through the sitting rod, the rear bracket is pushed forward to complete the folding process, and the supporting stroller is needed. When the above process is reversed, it can be completed.

上述技术方案实现了童车的折叠，但是折叠过程相对繁琐，同时多个暴露的关节机构和锁定结构容易对儿童造成伤害并影响使用安全。The above technical solution realizes the folding of the baby carriage, but the folding process is relatively cumbersome, and at the same time, the multiple exposed joint mechanisms and the locking structure are easy to cause harm to children and affect the safety of use.

公开号为CN201257998的中国专利文献公开了一种可折叠童车收车折叠关节涉及可折叠童车，包括前轮支架、车手支架、功能拉柄以及功能插销，前轮支架末端固定连接一连接下座，车手支架前端固定连接一连接上座，连接下座与连接上座转动连接，车手支架内穿有拉线，前轮支架和连接上座内具有容置功能插销的容置孔，功能拉柄通过拉线与功能插销连接，功能插销上设有弹簧，功能插销在功能拉柄、弹簧和拉线作用下能部分进入前轮支架的容置孔、部分与连接上座的容置孔配合，或者与前轮支架的容置孔脱离、全部与连接上座的容置孔配合。该技术方案通过拉线优化了开关位置，提高了安全性，但是折叠过程依旧相对繁琐。The Chinese Patent Publication No. CN201257998 discloses a collapsible baby carriage folding and folding joint involving a foldable baby carriage, including a front wheel bracket, a driver bracket, a function handle and a function latch, and the front wheel bracket end is fixedly connected to a lower seat. The front end of the driver bracket is fixedly connected to the upper seat, the lower seat is connected to the upper seat, the driver bracket is provided with a pull wire, the front wheel bracket and the connecting upper seat have a receiving hole for accommodating the function pin, and the function pull handle is passed through the pull wire and the function latch. Connection, the function pin is provided with a spring, and the function pin can partially enter the accommodating hole of the front wheel bracket under the action of the handle, the spring and the wire, the part is matched with the accommodating hole connected to the upper seat, or is accommodated with the front wheel bracket. The holes are detached and all are matched with the receiving holes that are connected to the upper seat. The technical solution optimizes the switch position by pulling the wire and improves the safety, but the folding process is still relatively cumbersome.

公开号为CN103507846A的中国专利文献公开了一种儿童推车，推车车架包括相对称的左侧支架与右侧支架、连接于左侧支架与右侧支架之间的连接架，左侧支架包括左前架、左后架、左侧杆、前部与左前架转动连接的左连杆、与左后架转动连接的左拉杆、与左侧杆的上部转动连接的左推杆架，左拉杆与左连杆的后部转动连接，左推杆架的下部与左拉杆的上部转动连接，左前架的上部、左后架的上部与左侧杆的下部三个部件相转动连接，右侧支架同样设置；当推车车架处于展开位置下，前架与侧杆之间形成夹角α,夹角α的角度范围为165°-195°。该技术方案仍存在下述问题：1、在展开时，前架、侧杆和推杆架展开成一条直线，锁定机构通过推杆架和侧杆相互挤压来锁定车体，在收折时要通过推动推杆架转动形成杠杆来收折，不仅收折不方便，需要用力较大，而且作用力集中、容易损坏推杆架；2、推杆架采用两段伸缩，收缩后仍长度较长，前架无法收折长度较长，这样造成车架收折后仍体积较大；3、收折时如需一并收拢后车轮使车架体积更小，则需要先蹲下收折后架将后车轮收起后，再对两侧支架进行收折，操作不方便、过程不合理，对使用技巧要求过高；4、左右两侧支架对折收拢后，如拿取位置不对容易散开，收藏取用都不方便；5、锁定机构和多个关节机构外露，容易对儿童造成伤害并影响使用安全。Chinese Patent Publication No. CN103507846A discloses a stroller comprising a symmetrical symmetrical left side bracket and a right side bracket, a connecting bracket connected between the left side bracket and the right side bracket, and a left side bracket The left front frame, the left rear frame, the left side rod, the left link that is rotatably connected to the front and the left front frame, the left pull rod that is rotatably connected to the left rear frame, the left push rod frame that is rotatably connected to the upper portion of the left side rod, and the left pull rod Rotating and connecting with the rear part of the left link, the lower part of the left push rod frame is rotatably connected with the upper part of the left pull rod, and the upper part of the left front frame and the upper part of the left rear frame are rotatably connected with the lower three parts of the left side rod, and the right side bracket is connected The same is set; when the cart frame is in the deployed position, an angle α is formed between the front frame and the side bar, and the angle α of the angle α ranges from 165° to 195°. The technical solution still has the following problems: 1. When unfolding, the front frame, the side bar and the push rod frame are unfolded in a straight line, and the locking mechanism is pressed against each other by the push rod frame and the side bar to lock the vehicle body, at the time of folding It is necessary to fold the lever frame to form the lever to fold, which is not only inconvenient to fold, but also requires a large force, and the force is concentrated, and the push rod frame is easily damaged; 2. The push rod frame adopts two-stage expansion and contraction, and the length is still smaller after contraction. Long, the front frame can not be folded for a long length, so that the frame is still large after the folding; 3, when folding, if the wheel is folded together to make the frame smaller, you need to fold down After the rear wheel is stowed, the two sides of the bracket are folded, the operation is inconvenient, the process is unreasonable, and the use skill is too high; 4. After the left and right sides of the bracket are folded and folded, if the position is not right, it is easy to spread. It is inconvenient to collect and use; 5. The locking mechanism and multiple joint mechanisms are exposed, which is easy to cause harm to children and affect the safety of use.

公开号为CN204222933U的专利文献公开了一种可折叠的婴儿推车，其左右两侧支架的折叠原理与公开号为CN103507846A的专利文献相近，仅是两侧支架中的双四连杆机构的联动结构略有不同，其存在同样的问题。The patent document published as CN204222933U discloses a collapsible stroller whose folding principle of the left and right brackets is similar to the patent document disclosed in CN103507846A, which is only the linkage of the double four-bar linkages in the brackets on both sides. The structure is slightly different and it has the same problem.

公开号为CN204415487U的专利文献公开了一种便于折叠收纳的童车车架，包括推杆、前支架、后支架、底盘座、前轮架以及后轮架；推杆的上端连设有一把手；前支架的上端与推杆的下端转动连接形成第一铰接点；后支架的上端亦转动连接于推杆的下端形成第二铰接点，且第二铰接点位于第一铰接点的后方；底盘座的前端连设前轮架；前支架的下端转动连接于底盘座的前部形成第三铰接点；后支架的下端转动连接于底盘座的后部形成第四铰接点；后轮架转动连接于底盘座后部的第四铰接点处；所述前支架设有第一连接件，所述后轮架设有第二连接件，两连接件之间设有连杆；四个铰接点之中任一者设有锁定装置。该方案为采用底盘座结构，为了保证车架稳定性，底盘座体积大并且无法进行收折，这样造成折叠后的车架体积依然较大，虽然其中也说明了推杆是可伸缩或收折的，也给出了简单的弯折结构，但是即使将推杆弯折后车架体积依然较大。The patent document published as CN204415487U discloses a baby carriage frame that is convenient for folding and storage, including a push rod, a front bracket, a rear bracket, a chassis seat, a front wheel frame and a rear wheel frame; the upper end of the push rod is connected with a handle; The upper end of the bracket is rotatably connected with the lower end of the push rod to form a first hinge point; the upper end of the rear bracket is also rotatably connected to the lower end of the push rod to form a second hinge point, and the second hinge point is located behind the first hinge point; a front wheel frame is connected to the front end of the chassis seat; a lower end of the front bracket is rotatably connected to the front portion of the chassis seat to form a third hinge point; a lower end of the rear bracket is rotatably coupled to the rear portion of the chassis seat to form a fourth hinge point; the rear wheel frame rotates Connected to a fourth hinge point at the rear of the chassis base; the front bracket is provided with a first connecting member, the rear wheel bracket is provided with a second connecting member, and a connecting rod is arranged between the two connecting members; Any of them is provided with a locking device. The scheme adopts a chassis seat structure. In order to ensure the stability of the frame, the chassis seat is bulky and cannot be folded, so that the folded frame is still large in size, although it also shows that the push rod is retractable or folded. However, a simple bending structure is also given, but even if the push rod is bent, the frame volume is still large.

发明内容Summary of the invention

为了解决上述的技术问题，本发明的目的是提供一种儿童手推车及其收车机构、收车折叠方法，结构更加合理，折叠后体积更小，操作方便省力。In order to solve the above technical problems, the object of the present invention is to provide a child stroller and a car-receiving mechanism thereof, and a folding and folding method, which has a more reasonable structure, a smaller volume after folding, and convenient and labor-saving operation.

为了达到上述的目的，本发明采用了以下的技术方案：In order to achieve the above object, the present invention adopts the following technical solutions:

一种儿童手推车的收车机构，包括左右对称布置的两个侧架以及连接在两侧架之间的横杆，每个侧架包括前脚杆(10)、后脚杆(20)和推手杆，前脚杆(10)下方安装有前轮(13)，后脚杆(20)下方安装有后轮(21)，其特征在于，前支撑杆(30)的下端与前脚杆(10)的中部铰接，前支撑杆(30)的上端与推手杆的下端铰接，后支撑杆(40)的上端与推手杆的中部铰接，后支撑杆(40)的下端与支撑竖杆(14)的上端铰接，支撑竖杆(14)的下端与后脚杆(20)的上端铰接，支撑竖杆(14)的中部与前脚杆(10)的上端固定连接或一体成型；第一连杆(31)的一端与前支撑杆(30)的下端固定连接或一体成型，第一连杆(31)的另一端与第二连杆(32)的一端铰接，第二连杆(32)的另一端与后脚杆(20)的中部铰接；这样，前脚杆(10)与推手杆之间连接前支撑杆(30)和后支撑杆(40)且构成可折叠的第一四连杆机构，前脚杆(10)与后脚杆(20)之间通过依次连接第一连杆(31)和第二连杆(32)且构成第二四连杆机构，折叠状态的第一四连杆机构与后脚杆(20)分别叠置在前脚杆(10)上下两侧；其中，后支撑杆(40)的上端与推手杆的中部之间通过收车锁定机构实现锁定固接或释放收折。A car-receiving mechanism for a child trolley, comprising two side frames symmetrically arranged on the left and right sides and a cross bar connected between the two side frames, each side frame comprising a front foot bar (10), a rear foot bar (20) and a pusher bar. A front wheel (13) is mounted under the front foot bar (10), and a rear wheel (21) is mounted below the rear foot bar (20), wherein the lower end of the front support bar (30) is hinged to the middle of the front foot bar (10). The upper end of the front support bar (30) is hinged to the lower end of the pusher bar, the upper end of the rear support bar (40) is hinged to the middle of the pusher bar, and the lower end of the rear support bar (40) is hinged to the upper end of the support vertical bar (14) to support The lower end of the vertical rod (14) is hinged with the upper end of the rear foot rod (20), and the middle portion of the supporting vertical rod (14) is fixedly connected or integrally formed with the upper end of the front foot rod (10); one end of the first connecting rod (31) and the front end The lower end of the support rod (30) is fixedly connected or integrally formed, the other end of the first link (31) is hinged to one end of the second link (32), and the other end of the second link (32) is connected to the rear leg (20). The middle portion is hinged; thus, the front foot bar (10) and the pusher bar are connected between the front support bar (30) and the rear support bar (40) and constitute a foldable first four-bar linkage mechanism, the front foot bar (10) And a first four-link mechanism and a rear leg (20) in a folded state by sequentially connecting the first link (31) and the second link (32) with the rear leg (20) ) are respectively stacked on the upper and lower sides of the front foot bar (10); wherein the upper end of the rear support bar (40) and the middle portion of the pusher bar are locked or released by the closing locking mechanism.

作为优选，所述收车锁定机构包括收车开关(621)和侧架锁定件(51)，推手杆的中部设有能够容纳后支撑杆(40)上端的凹槽(52)，后支撑杆(40)的上端***该凹槽(52)内并与该凹槽的侧壁通过铰接轴铰接，后支撑杆(40)的上端设有锁定部(42)，当后支撑杆(40)相对于推手杆转动时，锁定部(42)可以在凹槽(52)内活动，侧架锁定件(51)滑动设置在推手杆内，收车开关(621)通过钢线与侧架锁定件(51)连接；当侧架锁定件(51)伸入凹槽(52)内与后支撑杆(40)上端的锁定部(42)配合定位时，后支撑杆(40)相对于推手杆不能转动从而实现两者锁定固接，这样侧架的两个四连杆机构被锁定无法活动；当侧架锁定件(51)退回并与后支撑杆(40)上端的锁定部(42)分离时，后支撑杆(40)相对于推手杆能够转动，这样侧架的两个四连杆机构可以活动进行收折。Preferably, the parking lock mechanism comprises a parking switch (621) and a side frame locking member (51), and a middle portion of the pusher bar is provided with a groove (52) capable of accommodating an upper end of the rear support bar (40), and the rear support bar The upper end of (40) is inserted into the groove (52) and hinged with the side wall of the groove by a hinge shaft, and the upper end of the rear support rod (40) is provided with a locking portion (42) when the rear support rod (40) is opposite When the pusher lever rotates, the locking portion (42) can move in the groove (52), the side frame locking member (51) is slidably disposed in the pusher bar, and the closing switch (621) passes through the steel wire and the side frame locking member ( 51) connection; when the side frame locking member (51) projects into the groove (52) and cooperates with the locking portion (42) of the upper end of the rear support bar (40), the rear support bar (40) cannot rotate relative to the pusher bar Thereby, the two are locked and fixed, so that the two four-bar linkages of the side frame are locked and cannot move; when the side frame locking member (51) is retracted and separated from the locking portion (42) at the upper end of the rear support bar (40), The rear support bar (40) is rotatable relative to the pusher bar such that the two four-bar linkages of the side frame are movable for folding.

作为优选，所述前脚杆(10)分为上前脚杆(11)和下前脚杆(12)，前支撑杆(30)的下端与上前脚杆(11)的中部铰接，支撑竖杆(14)的中部与上前脚杆(11)的上端固定连接或一体成型，下前脚杆(12)下端安装前轮(13)，下前脚杆(12)的上端与上前脚杆(11)的下端铰接，所述上前脚杆(11)的下端和下前脚杆(12)的上端分别呈相互配合的下勾形，上前脚杆(11)的下端和下前脚杆(12)的上端的铰接轴(122)设置在下勾形的头部，上前脚杆(11)的下端和下前脚杆(12)的上端通过设置在下勾形的根部的前脚杆锁定机构实现锁定固接或释放收折。Preferably, the front foot bar (10) is divided into an upper front foot bar (11) and a lower front foot bar (12), and a lower end of the front support bar (30) is hinged to a middle portion of the upper front foot bar (11) to support the vertical rod (14). The middle portion is fixedly connected or integrally formed with the upper end of the upper front leg (11), the front wheel (13) is mounted at the lower end of the lower front leg (12), and the upper end of the lower front leg (12) is hinged to the lower end of the upper front leg (11) The lower end of the upper front leg (11) and the upper end of the lower front leg (12) respectively have a downward hook shape, a lower end of the upper front leg (11) and an articulated shaft of the upper end of the lower front leg (12) ( 122) A head is provided on the lower hook shape, and the lower end of the upper front foot lever (11) and the upper end of the lower front foot lever (12) are locked or released by a front foot lever locking mechanism provided at a root of the lower hook shape.

作为优选，所述前脚杆锁定机构，包括下前脚杆锁定钩(111)和下前脚杆锁定部(121)，下前脚杆锁定钩(111)的中部铰接设置在上前脚杆(11)下勾形的根部内，下前脚杆锁定钩(111)的一端为与下前脚杆锁定部(121)钩挂配合的钩部(1112)，下前脚杆锁定钩(111)的一端为翘出上前脚杆(11)外的释放部(1111)，下前脚杆锁定钩(111)连接有弹性件从而赋予钩部(1112)靠近下前脚杆锁定部(121)的趋势；当下前脚杆锁定钩(111)的释放部(1111)被折叠的后脚杆(20)压回时，下前脚杆锁定钩(111)的钩部(1112)与下前脚杆锁定部(121)分离，从而下前脚杆(12)可以收折；当后脚杆(20)和下前脚杆(12)展开时，下前脚杆锁定钩(111)的释放部(1111)向外翘出，下前脚杆锁定钩(111)的钩部(1112)与下前脚杆锁定部(121)钩挂配合，从而下前脚杆(12)与上前脚杆(11)锁定固接。Preferably, the front foot bar locking mechanism comprises a lower front foot locking hook (111) and a lower front foot locking portion (121), and a middle portion of the lower front foot locking hook (111) is hingedly disposed on the upper front foot (11) lower hook In the root of the shape, one end of the lower front leg locking hook (111) is a hook portion (1112) that is hooked and engaged with the lower front leg locking portion (121), and one end of the lower front leg locking hook (111) is tilted up and forward. The release portion (1111) outside the rod (11), the lower front foot rod locking hook (111) is coupled with an elastic member to give the hook portion (1112) a tendency to approach the lower front foot rod locking portion (121); when the lower front foot rod locks the hook (111) When the release portion (1111) is pressed back by the folded rear foot lever (20), the hook portion (1112) of the lower front foot lever locking hook (111) is separated from the lower front foot lever locking portion (121), thereby lowering the front foot lever (12) ) can be folded; when the rear foot bar (20) and the lower front foot bar (12) are unfolded, the release portion (1111) of the lower front leg lock hook (111) is outwardly tilted, and the hook of the lower front leg lock hook (111) The portion (1112) is hooked and engaged with the lower front leg lock portion (121), so that the lower front foot bar (12) and the upper front foot bar (11) are locked and fixed.

作为优选，所述推手杆包括推手杆手把(611)、上推手杆(61)、中推手杆(62)和下推手杆(50)，上推手杆(61)以能够上下伸缩的方式插设在中推手杆(62)中并通过上推手杆锁定机构实现锁定固接或释放伸缩，中推手杆(62)的下端和下推手杆(50)的上端铰接并通过中推手杆锁定机构实现锁定固接或释放收折；前支撑杆(30)的上端与下推手杆(50)的下端铰接，后支撑杆(40)的上端与下推手杆(50)的中部铰接。Preferably, the pusher bar includes a pusher handle (611), a pusher (61), a pusher (62) and a pusher (50), and the pusher (61) is inserted up and down to be able to expand and contract. Set in the middle pusher lever (62) and locked by the push-up lever locking mechanism or Release the telescopic, the lower end of the middle pusher lever (62) and the upper end of the pusher lever (50) are hinged and locked or released by the middle push lever locking mechanism; the upper end of the front support bar (30) and the pusher bar ( The lower end of the 50) is hinged, and the upper end of the rear support bar (40) is hinged to the middle of the pusher bar (50).

作为优选，所述上推手杆锁定机构包括上推手杆伸缩开关(6111)、上推手杆锁定销(613)、弹片(614)和弹片套(612)，弹片(614)固定在上推手杆(61)***中推手杆(62)的***部，弹片(614)的外翘端固定上推手杆锁定销(613)，上推手杆锁定销(613)伸出上推手杆(61)并与中推手杆(62)上的锁定销孔配合，弹片套(612)套设在弹片(614)外并通过滑动控制弹片(614)的外翘端纳入或翘出，弹片套(612)通过钢线与安装在推手杆手把(611)上的上推手杆伸缩开关(6111)连接。Preferably, the push-up lever locking mechanism comprises a push-up lever telescopic switch (6111), a push-up lever lock pin (613), a spring piece (614) and a spring sleeve (612), and the spring piece (614) is fixed on the push-up hand lever ( 61) Inserting the insertion portion of the middle pusher lever (62), the outer spring end of the elastic piece (614) is fixed to the pusher lever locking pin (613), and the pusher lever locking pin (613) is extended from the pusher lever (61) and is middle The locking pin hole on the pusher lever (62) is engaged, and the elastic sleeve (612) is sleeved outside the elastic piece (614) and is inserted or lifted by the outer curved end of the sliding control elastic piece (614), and the elastic piece sleeve (612) passes through the steel wire. Connected to the push-up lever telescopic switch (6111) mounted on the pusher handle (611).

作为优选，所述中推手杆锁定机构包括联动件(53)和中推手杆锁定件(54)，联动件(53)滑动设置在下推手杆(50)的中部并与设置在后支撑杆(40)上端的联动部(44)连接，中推手杆锁定件(54)滑动设置在下推手杆(50)上部并与设置在中推手杆(62)下端的锁定孔(622)插接配合，中推手杆锁定件(54)通过钢线与联动件(53)连接，中推手杆锁定件(54)通过弹簧赋予***中推手杆(62)上的锁定孔(622)的趋势；当后支撑杆(40)相对于下推手杆(50)转动时，联动部(44)带动联动件(53)移动，联动件(53)通过钢线带动中推手杆锁定件(54)与中推手杆(62)上的锁定孔(622)插接锁定或者分离释放。Preferably, the middle push lever locking mechanism comprises a linkage (53) and a middle pusher lock (54), and the linkage (53) is slidably disposed in a middle portion of the pusher lever (50) and disposed on the rear support bar (40) The upper end linkage (44) is connected, and the middle pusher lever locking member (54) is slidably disposed on the upper portion of the lower pusher lever (50) and is mated with the locking hole (622) disposed at the lower end of the middle pusher lever (62). The lever locking member (54) is coupled to the linkage (53) by a steel wire, and the middle pusher lever locking member (54) is biased by a spring to the locking hole (622) inserted into the middle pusher lever (62); when the rear support lever ( 40) When the pusher (50) is rotated relative to the pusher (50), the linkage (44) drives the linkage (53) to move, and the linkage (53) drives the pusher lock (54) and the pusher (62) through the steel wire. The upper locking hole (622) is plugged or unlocked.

作为优选，所述横杆包括：Preferably, the crossbar comprises:

第一横杆(70)，设置在两侧架的上前脚杆(11)上部之间，第一横杆(70)的两端分别与两侧架的上前脚杆(11)上部延伸出来的横杆安装臂铰接；或者，设置在两侧架的后支撑杆(40)下部之间，第一横杆(70)的两端分别与两侧架的后支撑杆(40)下部延伸出来的横杆安装臂铰接；The first crossbar (70) is disposed between the upper portions of the upper forefoot bars (11) of the two side frames, and the two ends of the first cross bar (70) respectively extend from the upper part of the upper front foot bars (11) of the two side frames The crossbar mounting arm is hinged; or is disposed between the lower portions of the rear support bars (40) of the two side frames, and the two ends of the first cross bar (70) respectively extend from the lower portions of the rear support bars (40) of the two side frames The crossbar mounting arm is hinged;

第二横杆(80)，设置在两侧架的上前脚杆(11)下部之间，第二横杆(80)的两端分别与两侧架的上前脚杆(11)下部延伸出来的横杆安装臂铰接；a second crossbar (80) is disposed between the lower portions of the upper forefoot bars (11) of the two side frames, and the two ends of the second cross bar (80) respectively extend from the lower portions of the upper forefoot bars (11) of the two side frames The crossbar mounting arm is hinged;

第三横杆(25)，设置在两侧架的后脚杆(20)之间，第三横杆(25)的两端分别与两侧架的后脚杆(20)延伸出来的横杆安装臂铰接；The third crossbar (25) is disposed between the rear leg (20) of the two side frames, and the two ends of the third cross bar (25) respectively extend with the cross bar mounting arm of the rear leg (20) of the two side frames Hinged

第四横杆(65)，设置在两侧架的上推手杆(61)之间，第四横杆(65)的两端分别与两侧架的上推手杆(61)延伸出来的横杆安装臂铰接；或者，设置在两侧架的推手杆手把(611)之间，第四横杆(65)的两端分别与推手杆手把(611)延伸出来的横杆安装臂铰接；The fourth crossbar (65) is disposed between the upper pusher bars (61) of the two side frames, and the two ends of the fourth crossbar (65) respectively extend with the crossbars of the pusher bars (61) of the two side frames The mounting arm is hinged; or, is disposed between the pusher handles (611) of the two side frames, and the two ends of the fourth crossbar (65) are respectively hinged with the crossbar mounting arms from which the pusher handle (611) extends;

当两侧架处于展开锁定状态时，第一横杆(70)、第二横杆(80)、第三横杆(25)和第四横杆(65)上的铰接轴分布于不同的平面；当两侧架处于收拢折叠状态时，第一横杆(70)、第二横杆(80)、第三横杆(25)和第四横杆(65)上的铰接轴位于同一轴线上。When the two side frames are in the unfolded locked state, the hinge axes on the first crossbar (70), the second crossbar (80), the third crossbar (25), and the fourth crossbar (65) are distributed on different planes. When the two side frames are in the collapsed state, the hinge axes on the first crossbar (70), the second crossbar (80), the third crossbar (25) and the fourth crossbar (65) are on the same axis .

一种儿童手推车，其特征在于，包括如上所述的收车机构。A child stroller characterized by comprising a pick-up mechanism as described above.

如上所述的一种儿童手推车的收车折叠方法，其特征在于，拉动收车开关(621)，释放收车锁定机构，使后支撑杆(40)与推手杆之间解除锁定，向下推压，将两侧架的由前支撑杆(30)、后支撑杆(40)、前脚杆(10)、推手杆组成的第一四连杆机构收折，使得推手杆向上前脚杆(11)运动并靠拢，同时前支撑杆(30)通过与其固接的第一连杆(31)带动由前脚杆(10)、第一连杆(31)、第二连杆(32)组成的第二四连杆机构收折，从而拉动后脚杆(20)向上前脚杆(11)运动并靠拢；继续推压，推手杆、前后支撑杆组成的第一四连杆机构和后脚杆(20)分别收纳在前脚杆(10)的两侧。A folding and folding method for a child stroller as described above, characterized in that the car switch (621) is pulled, the car lock mechanism is released, and the rear support bar (40) and the pusher bar are unlocked and pushed down. Pressing, the first four-bar linkage consisting of the front support bar (30), the rear support bar (40), the front foot bar (10), and the pusher bar is folded, so that the pusher bar is up to the front leg (11) Moving and close together, while the front support bar (30) drives the second leg (10), the first link (31) and the second link (32) through the first link (31) fixed thereto The four-bar linkage mechanism is folded, thereby pulling the rear foot bar (20) to move forward and close to the front forefoot bar (11); and continuing to push, the first four-link mechanism and the rear leg bar (20) composed of the pusher bar and the front and rear support bars are respectively accommodated. On both sides of the front foot bar (10).

本发明由于采用了以上的技术方案，在展开时，推手杆与前脚杆、后脚杆均呈夹角设置并且三者之间通过两个四连杆机构实现联动折叠，这样只要解除四连杆机构的锁定就可以轻松实现收折，收折方便省力，各部件使用寿命长；将后支撑杆和后脚杆分别折叠收拢在前脚杆的上下两侧，这样使得各杆件的长度相近和彼此配合，折叠结构更加合理，使得折叠后的车架体积更小。并且，结构简单，减少部件和成本的同时大大提高了产品的稳定性。The present invention adopts the above technical solution. When unfolding, the pusher bar is disposed at an angle with the front and rear foot bars, and the three are connected by two four-bar linkages, so that the four-bar linkage is released. The locking can be easily achieved, the folding is convenient and labor-saving, and the life of each component is long; the rear support bar and the rear leg are respectively folded and folded on the upper and lower sides of the front leg, so that the lengths of the bars are similar and match each other. The folding structure is more reasonable, making the folded frame smaller in size. Moreover, the structure is simple, the components and costs are reduced, and the stability of the product is greatly improved.

下面对本发明儿童手推车的具体结构进行进一步说明如下：The specific structure of the children's trolley of the present invention is further described below as follows:

一种儿童手推车，包括左右对称布置的两个侧架以及连接在两侧架之间的横杆，每个侧架包括前脚杆、后脚杆和推手杆，前脚杆下方安装有前轮，后脚杆下方安装有后轮。 A child stroller comprising two side frames symmetrically arranged on the left and right sides and a cross bar connected between the two side frames, each side frame comprising a front foot bar, a rear foot bar and a pusher bar, and a front wheel and a rear foot bar are mounted under the front foot bar The rear wheel is mounted below.

推手杆包括推手杆手把、上推手杆、中推手杆和下推手杆，上推手杆以能够上下伸缩的方式插设在中推手杆中并通过上推手杆锁定机构实现锁定固接或释放伸缩，中推手杆的下端和下推手杆的上端铰接并通过中推手杆锁定机构实现锁定固接或释放收折。The pusher bar includes a pusher handle, a pusher, a pusher, and a pusher. The pusher is inserted into the middle pusher in a manner that can be up and down and can be locked or released by pushing up the handle lock mechanism. The lower end of the pusher lever and the upper end of the pusher lever are hinged and locked or released by the pusher lever locking mechanism.

在现有技术中，推手杆一般采用上下伸缩的两段结构，而儿童手推车的推手杆的使用高度范围一般是明确的，这样就决定了推手杆的长度范围是固定的，采用两段式推手杆，收缩后仍长度较长，这样使得折叠后的车架体积仍较大。如采用三段伸缩结构，则存在锁定机构复杂并无法在较高位置通过邻近手把的单一开关进行锁定或释放，这样不仅不方便使用，而且容易形成安全隐患。而本发明中，上推手杆和中推手杆之间通过收缩，中推手杆和下推手杆之间通过折叠，这样的三段式结构控制行程短且结构简单，并且可以与支撑侧架的两个四连杆机构形成联动，可以减化锁定机构，减少外露开关，提高操作方便性和可靠性。In the prior art, the pusher bar generally adopts a two-stage structure of up-and-down telescopic, and the height range of the push bar of the child trolley is generally clear, so that the length range of the pusher bar is fixed, and the two-stage pusher is adopted. The rod is still longer after being contracted, so that the folded frame is still large in volume. If a three-stage telescopic structure is adopted, there is a complicated locking mechanism and it cannot be locked or released at a higher position by a single switch adjacent to the handlebar, which is not only inconvenient to use, but also easily poses a safety hazard. In the present invention, the push-up hand and the middle push-hand bar pass through the contraction, and the push-pull bar and the push-down hand-hand bar are folded by each other. The three-stage structure control stroke is short and the structure is simple, and can be combined with the support side frame. The four-bar linkage mechanism forms a linkage, which can reduce the locking mechanism, reduce the exposed switch, and improve the operation convenience and reliability.

前脚杆分为上前脚杆和下前脚杆，下前脚杆下端安装前轮，下前脚杆的上端与上前脚杆的下端铰接，前支撑杆的下端与上前脚杆的中部铰接，前支撑杆的上端与下推手杆的下端铰接，后支撑杆的上端与下推手杆的中部铰接，后支撑杆的下端与支撑竖杆的上端铰接，支撑竖杆的下端与后脚杆的上端铰接，支撑竖杆的中部与上前脚杆的上端固定连接或一体成型；第一连杆的一端与前支撑杆的下端固定连接或一体成型，第一连杆的另一端与第二连杆的一端铰接，第二连杆的另一端与后脚杆的中部铰接；这样，上前脚杆与下推手杆之间连接前支撑杆和后支撑杆且构成可折叠的第一四连杆机构，上前脚杆与后脚杆之间通过依次连接第一连杆和第二连杆且构成第二四连杆机构，折叠状态的第一四连杆机构与后脚杆分别叠置在上前脚杆上下两侧。The front foot bar is divided into an upper front foot bar and a lower front foot bar, the lower front end of the lower front leg is mounted with a front wheel, the upper end of the lower front leg is hinged with the lower end of the upper front leg, the lower end of the front support bar is hinged with the middle of the upper front leg, and the front support bar is The upper end is hinged to the lower end of the pusher bar, the upper end of the rear support bar is hinged to the middle of the pusher bar, the lower end of the rear support bar is hinged to the upper end of the support bar, the lower end of the support bar is hinged with the upper end of the rear leg, and the support bar is supported. The middle portion is fixedly connected or integrally formed with the upper end of the upper front leg; one end of the first link is fixedly connected or integrally formed with the lower end of the front support bar, and the other end of the first link is hinged with one end of the second link, and the second The other end of the connecting rod is hinged to the middle of the rear leg; thus, the front support bar and the rear support bar are connected between the upper front foot bar and the lower push hand bar and constitute a foldable first four-bar linkage mechanism, and the upper front foot bar and the rear foot bar By connecting the first link and the second link in sequence and forming a second four-bar linkage mechanism, the first four-bar linkage mechanism and the rear foot lever in the folded state are respectively stacked on the upper and lower sides of the upper front foot bar.

本发明在展开时，推手杆与前脚杆、后脚杆均呈夹角设置并且三者之间通过两个四连杆机构实现联动折叠，这样只要解除四连杆机构的锁定就可以轻松实现收折，收折方便省力，各部件使用寿命长；将推手杆设置成上下三段，将前脚杆设置成上下两段，将后支撑杆和后脚杆分别折叠收拢在上前脚杆的上下两侧，这样使得各杆件的长度相近和彼此配合，折叠结构更加合理，使得折叠后的车架体积更小。When the invention is unfolded, the pusher bar is disposed at an angle with the front leg and the rear leg, and the three are connected by two four-bar linkages, so that the folding of the four-bar linkage can be easily achieved. The folding is convenient and labor-saving, and the lifespan of each component is long; the pusher bar is set to the upper and lower sections, the front leg is set to the upper and lower sections, and the rear support bar and the rear leg are respectively folded and folded on the upper and lower sides of the upper front leg, so that The lengths of the rods are similar and matched with each other, and the folding structure is more reasonable, so that the folded frame is smaller in size.

为了达到联动的效果，儿童手推车通过第一四连杆机构收折的同时通过前支撑杆和第一连杆之间固定连接驱动第二四连杆机构收折后脚杆，从而达到只要一个动作就能联动收折整部儿童手推车的目的，在整车完全收折完成后，第一四连杆机构和后脚杆分别贴靠在前脚杆的两侧，描述为上下两侧是因为儿童手推车在折叠后能够任意翻转放置，不容易区分方位，而儿童手推车在展开状态下时三维状态稳定，前脚杆处于倾斜横置的状态，因此第一四连杆机构和后脚杆分别贴靠在前脚杆的上下两侧。在收折过程中，第一四连杆机构和后脚杆分别贴靠至前脚杆的上下两侧后，两侧架可以通过和横杆转动配合相向对内翻折，进一步缩小儿童手推车折叠后的体积大小，方便携带。In order to achieve the effect of linkage, the child trolley is folded by the first four-bar linkage mechanism, and the second four-bar linkage mechanism is used to fold the rear foot rod through a fixed connection between the front support rod and the first link, thereby achieving only one action. The purpose of the folding and folding of the whole child trolley is that after the complete folding of the whole vehicle is completed, the first four-bar linkage and the rear foot bar respectively abut on both sides of the front foot bar, which are described as the upper and lower sides because the children's trolley is folded. After being able to be flipped and placed at will, it is not easy to distinguish the orientation, and the three-dimensional state of the child's trolley is stable when the vehicle is in the unfolded state, and the forefoot is in a state of being inclined and horizontally, so that the first four-bar linkage and the rear-leg are respectively abutted on the front and the rear of the forefoot On both sides. In the folding process, after the first four-bar linkage mechanism and the rear foot lever respectively abut the upper and lower sides of the front foot bar, the two side frames can be folded inwardly and oppositely by the rotation cooperation with the cross bar, further reducing the folding of the child trolley after folding The size is easy to carry.

其中，后支撑杆的上端与下推手杆的中部之间通过收车锁定机构实现锁定固接或释放收折。虽然收车锁定机构也可以设置在第一四连杆机构、第二四连杆机构的其他铰接位置，但是优选设置在后支撑杆与下推手杆之间，这样具有下述优点：1、座椅一般安装在后支撑杆与下推手杆之间，收车锁定机构也设置在这里，直接锁止具有更好的锁定效果；2、在下推手杆的中部具有足够的空间可以用于隐藏设置收车锁定机构，这样不仅可以避免关节和锁定机构暴露、靠前易被儿童玩耍造成安全隐患，而且给收车锁定机构提供了更多设计选择，可以设计更加稳定可靠的收车锁定机构；3、收车锁定开关一般设置在推手杆上，这样设计不仅使得收车锁定机构结构简单、使用方便可靠，而且也方便与推手杆上的其他锁定机构联动，以减少外露开关。Wherein, the upper end of the rear support rod and the middle portion of the lower push rod are locked or released by the closing locking mechanism. Although the car locking mechanism can also be disposed at other hinge positions of the first four-bar linkage mechanism and the second four-bar linkage mechanism, it is preferably disposed between the rear support bar and the push-down hand lever, which has the following advantages: The chair is generally installed between the rear support bar and the push down hand lever, and the car lock mechanism is also disposed here, the direct lock has a better locking effect; 2. There is enough space in the middle of the push down hand bar to hide the setting. The vehicle locking mechanism can not only avoid the joints and the locking mechanism from being exposed, but also cause safety hazards to be played by the children in front, and provides more design choices for the locking mechanism of the car, and can design a more stable and reliable car locking mechanism; The car lock switch is generally arranged on the pusher bar, so that the design not only makes the car lock mechanism simple in structure, convenient and reliable to use, but also facilitates linkage with other locking mechanisms on the pusher bar to reduce the exposed switch.

上前脚杆的下端和下前脚杆的上端分别呈相互配合的下勾形，上前脚杆的下端和下前脚杆的上端的铰接轴设置在下勾形的头部，上前脚杆的下端和下前脚杆的上端通过设置在下勾形的根部的前脚杆锁定机构实现锁定固接或释放收折。上前脚杆和下前脚杆采用下勾形铰接结构，不仅具有较好的支撑连接性能，而且使得折叠后的前后轮具有更加合理的错位布置空间。The lower end of the upper front leg and the upper end of the lower front leg respectively have a downward hook shape, and the lower end of the upper front leg and the upper end of the lower front leg are disposed on the lower hook head, the lower end of the upper front leg and the lower front foot The upper end of the rod is locked or released by a front foot locking mechanism provided at the root of the lower hook. The upper front foot bar and the lower front foot bar adopt a lower hook-shaped hinge structure, which not only has better support connection performance, but also makes the folded front and rear wheels have more reasonable dislocation arrangement space.

横杆包括：The crossbar includes:

第一横杆，设置在两侧架的上前脚杆上部之间，第一横杆的两端分别与两侧架的上前脚杆上部延伸出来的横杆安装臂铰接；或者，设置在两侧架的后支撑杆下部之间，第一横杆的两端分别与两侧架的后支撑杆下部延伸出来的横杆安装臂铰接；这样可以确保支撑竖杆和后支撑杆铰接牢固从而保证第一四连杆机构结构稳固。本实施例优选设置在两侧架的后支撑杆下部之间，这样当座椅杆安装在后支撑杆和下推手杆上时，安装在两侧座椅杆上的座椅套和第一横杆分别对两侧架的后支撑杆的上下两端都进行了连接，进一步保证了结构稳定。The first cross bar is disposed between the upper front foot bars of the two side frames, and the two ends of the first cross bar are respectively hinged with the cross bar mounting arms extending from the upper part of the upper front leg of the two side frames; or, disposed on both sides Between the lower part of the rear support bar, the two ends of the first cross bar are respectively hinged with the crossbar mounting arms extending from the lower support bar of the two side frames; this ensures that the support vertical bar and the rear support bar are hinged firmly to ensure the first A four-bar linkage mechanism is structurally stable. The embodiment is preferably disposed between the lower portions of the rear support bars of the side frames, such that when the seat bars are mounted on the rear support bars and the lower push handle bars, the seat covers and the first cross members are mounted on the side seat bars The rods are respectively connected to the upper and lower ends of the rear support bars of the two side frames, further The structure is guaranteed to be stable.

第二横杆，设置在两侧架的上前脚杆下部之间，第二横杆的两端分别与两侧架的上前脚杆下部延伸出来的横杆安装臂铰接；这样可以确保两侧架的前脚杆之间连接稳固，同时第二横杆起到脚踏的作用。The second cross bar is disposed between the lower front foot legs of the two side frames, and the two ends of the second cross bar are respectively hinged with the cross bar mounting arms extending from the lower front foot bars of the two side frames; The connection between the front foot bars is stable, and the second cross bar acts as a foot pedal.

第三横杆，设置在两侧架的后脚杆之间，第三横杆的两端分别与两侧架的后脚杆延伸出来的横杆安装臂铰接；这样可以确保两侧架的后脚杆之间连接稳固。The third cross bar is disposed between the rear leg bars of the two side frames, and the two ends of the third cross bar are respectively hinged with the cross bar mounting arms extending from the rear leg bars of the two side frames; this can ensure the rear foot bars of the two side frames The connection is stable.

第四横杆，设置在两侧架的上推手杆之间，第四横杆的两端分别与两侧架的上推手杆延伸出来的横杆安装臂铰接；或者，设置在两侧架的推手杆手把之间，第四横杆的两端分别与推手杆手把延伸出来的横杆安装臂铰接。这样可以确保两侧架的推手杆之间连接稳固。The fourth crossbar is disposed between the pusher bars of the two side frames, and the two ends of the fourth crossbar are respectively hinged with the crossbar mounting arms extended by the pusher bars of the two side frames; or Between the handlebar handles, the ends of the fourth crossbar are respectively hinged with the crossbar mounting arms from which the pusher handlebars extend. This ensures a secure connection between the pushers of the two side frames.

当两侧架处于展开锁定状态时，第一横杆、第二横杆、第三横杆和第四横杆上的铰接轴分布于不同的平面；当两侧架处于收拢折叠状态时，第一横杆、第二横杆、第三横杆和第四横杆上的铰接轴位于同一轴线上。这样，在侧架收拢折叠时，可以沿同一轴线对两侧架进行对向翻折，使得折叠后的车架体积更小；而在侧架展开锁定时，又可以确保结构稳定，避免推车在使用过程中产生松动或收折。When the two side frames are in the unfolded locked state, the hinge axes on the first cross bar, the second cross bar, the third cross bar and the fourth cross bar are distributed on different planes; when the two side frames are in the folded and folded state, The hinge axes on one of the crossbars, the second crossbar, the third crossbar, and the fourth crossbar are on the same axis. In this way, when the side frame is folded and folded, the two side frames can be folded in the opposite direction along the same axis, so that the folded frame is smaller in size, and when the side frame is unfolded and locked, the structure can be ensured to be stable, and the cart can be avoided. Loose or folded during use.

第一横杆安装在上前脚杆靠近后脚杆的部位，第二横杆安装在靠近下前脚杆的部位。这样选择原因在于在有限的空间内，尽量远离第一横杆和第二横杆能够在固定两侧的上前脚杆方面获得更大的力臂，即用更小的力就能稳定两侧的上前脚杆。同时，第一横杆安装在上前脚杆靠近后脚杆的部位设置有支撑竖杆，为多个部件铰接的位置，靠近该处能提高关节部位的整体刚性，从而提高整车刚性。The first crossbar is mounted on the upper forefoot near the rear leg and the second crossbar is mounted adjacent to the lower forefoot. The reason for this choice is that in a limited space, as far as possible away from the first crossbar and the second crossbar, a larger arm can be obtained in the upper forefoot bar on both sides, that is, the two sides can be stabilized with less force. Go up the front foot. At the same time, the first crossbar is installed on the upper front foot bar near the rear foot bar, and is provided with a supporting vertical bar, which is a position where the plurality of components are hinged, and the overall rigidity of the joint portion can be improved close to the position, thereby improving the rigidity of the whole vehicle.

横杆设有四组，两组安装在两对上前脚杆之间，一组安装在两对后脚杆之间，另一组安装在推手杆之间，这样选择的原因在于，三组横杆虽然理论上足够固定两侧的侧架，但是侧架上设有多个活动部件，每个铰接或者轴接的点不足以保持所有运动部件都处于同一平面，因此，设置四组横杆是很有必要的。而且在儿童手推车在使用过程中，承受力量最大的就是前、后脚杆，作为称重部件前、后脚杆的稳固直接影响着整部手推车的刚性。There are four sets of crossbars, two sets are installed between two pairs of upper front foot bars, one set is installed between two pairs of rear foot bars, and the other set is installed between pusher bars. The reason for this selection is that three sets of cross bars Although theoretically enough to fix the side frames on both sides, the side frame is provided with a plurality of moving parts, and each hinged or shafted point is not enough to keep all the moving parts in the same plane. Therefore, setting four sets of cross bars is very Necessary. Moreover, during the use of the children's trolley, the front and rear foot bars are the most stressed. The stability of the front and rear legs as the weighing components directly affects the rigidity of the entire trolley.

上述各横杆的安装结构可以参见公开号为CN103507846A和CN204222933U的专利文献，本实施例以第三横杆为例进行说明，在后脚杆上设有用于安装和折叠的横杆安装臂，横杆安装臂分为和后脚杆固定的尾部和远离后脚杆的头部，横杆安装臂的头部上安装有铰接轴，同样的在第三横杆上设有用于在侧架对向翻折时收纳横杆安装臂的横杆安装臂收纳槽，在横杆安装臂收纳槽的上下方对称设有配合铰接轴安装的横杆安装孔。横杆安装臂的形状结构可以根据折叠时部件避让和结构支撑的需要进行设计。For the mounting structure of the above-mentioned crossbars, refer to the patent documents of the publications CN103507846A and CN204222933U. This embodiment is described by taking a third crossbar as an example, and a crossbar mounting arm for mounting and folding is provided on the rear leg. The mounting arm is divided into a tail portion fixed to the rear foot rod and a head portion away from the rear foot rod, and an articulated shaft is mounted on the head of the cross rod mounting arm, and the same is provided on the third cross rod for folding the side frame in the opposite direction. A crossbar mounting arm housing groove for accommodating the crossbar mounting arm, and a crossbar mounting hole for fitting the hinge shaft to be symmetrically disposed above and below the crossbar mounting arm housing groove. The shape of the crossbar mounting arm can be designed according to the needs of component avoidance and structural support during folding.

座椅及座椅套的安装结构可以采用现有技术中的已经在折叠推车中使用的结构，本发明仅提供一种优选实施方式以供说明：座椅杆通过第一连接件和第二连接件安装在后支撑杆和下推手杆上，第一连接件与后支撑杆铰接并与座椅杆固定连接，第二连接件安装在下推手杆上，座椅杆搁置在第二连接件上或者与第二连接件插套滑动连接，两侧架的座椅杆整体通过套设的推手杆上的软性材料与车体保持稳定连接。座椅杆的承重由第一连接件、第二连接件和软性材料共同承担。其中软性材料可以选用布套的形式。The mounting structure of the seat and the seat cover can adopt the structure that has been used in the folding cart in the prior art, and the present invention only provides a preferred embodiment for explanation: the seat rod passes the first connecting member and the second The connecting member is mounted on the rear support bar and the lower push handle bar, the first connecting member is hingedly connected with the rear support bar and fixedly connected with the seat bar, the second connecting member is mounted on the lower pusher bar, and the seat bar rests on the second connecting member Or slidingly connected with the second connector sleeve, the seat rods of the two sides of the frame are stably connected to the vehicle body through the soft material on the pusher bar. The load-bearing weight of the seat rod is shared by the first connecting piece, the second connecting piece and the soft material. The soft material can be in the form of a cloth cover.

上述上推手杆锁定机构可以采用现有技术中的已经在折叠推车中使用的结构，而本发明采用一种优选实施方式，说明如下：The above-mentioned push-up lever locking mechanism can adopt the structure that has been used in the folding cart in the prior art, and the present invention adopts a preferred embodiment, which is explained as follows:

上推手杆锁定机构包括上推手杆伸缩开关、上推手杆锁定销、弹片和弹片套，弹片固定在上推手杆***中推手杆的***部，弹片的外翘端固定上推手杆锁定销，上推手杆锁定销伸出上推手杆并与中推手杆上的锁定销孔配合，弹片套套设在弹片外并通过滑动控制弹片的外翘端纳入或翘出，弹片套通过钢线与安装在推手杆手把上的上推手杆伸缩开关连接。按下上推手杆伸缩开关时，钢线拉动弹片套滑动将弹片的外翘端纳入弹片套使得弹片外翘端上的上推手杆锁定销从中推手杆上的锁定销孔中脱出解除锁定状态，这样上推手杆可以在中推手杆中上下移动实现推手杆伸缩；松开按下上推手杆伸缩开关，上推手杆移动到位后，弹片在自身弹力作用下复位，弹片的外翘端翘出弹片套使得弹片外翘端上的上推手杆锁定销***中推手杆上的锁定销孔中实现位置锁定。在中推手杆上设置多个锁定销孔，这样可以调节推手杆的高度以方便使用者使用。The push-up lever locking mechanism comprises a push-up lever telescopic switch, a push-up lever lock pin, a spring piece and a spring sleeve, and the elastic piece is fixed in the insertion portion of the push-hand lever inserted in the push-pull rod, and the outer warping end of the elastic piece is fixed on the push-hand lever locking pin, The pusher lever locking pin extends out of the pusher bar and cooperates with the locking pin hole on the pusher bar. The shrapnel sleeve is disposed outside the shrapnel and is inserted or tilted out by the outer wrap end of the sliding control shrapnel. The shrapnel sleeve is passed through the steel wire and mounted on the pusher. The push-up lever telescopic switch on the handle is connected. When the push-up lever telescopic switch is pressed, the steel wire pulls the shrapnel sleeve to slide the outer warping end of the shrapnel into the shrapnel sleeve, so that the push-up lever locking pin on the outer warping end of the shrapnel is released from the locking pin hole on the push lever, and is unlocked. In this way, the push-up lever can be moved up and down in the middle push lever to realize the telescopic movement of the pusher lever; when the push-up lever telescopic switch is pressed, the push-up lever is moved into position, the elastic piece is reset under the action of its own elastic force, and the outer warping end of the elastic piece is lifted out of the elastic piece. The sleeve is inserted into the locking pin hole on the middle pusher lever to realize the positional locking. A plurality of locking pin holes are arranged on the middle push lever, so that the height of the pusher bar can be adjusted for the convenience of the user.

上述收车锁定机构可以采用现有技术中的已经在折叠推车中使用的结构，例如公开号为CN201257998Y的专利文献所公开的结构，而本发明采用一种优选实施方式，说明如下：The above-described catch-locking mechanism can adopt a structure which has been used in a folding cart in the prior art, for example, the structure disclosed in the patent document published as CN201257998Y, and the present invention adopts a preferred embodiment, which is explained as follows:

收车锁定机构包括收车开关和侧架锁定件，下推手杆的中部设有能够容纳后支撑杆上端的凹槽，后支撑杆的上端***该凹槽内并与该凹槽的侧壁通过铰接轴铰接，后支撑杆的上端设有锁定部，当后支撑杆相对于下推手杆转动时，锁定部可以在凹槽内活动，侧架锁定件滑动设置在下推手杆内，安装在中推手杆上的收车开关通过钢线与侧架锁定件连接；当侧架锁定件伸入凹槽内与后支撑杆上端的锁定部配合定位时，后支撑杆相对于下推手杆不能转动从而实现两者锁定固接，这样侧架的两个四连杆机构被锁定无法活动；当侧架锁定件退回并与后支撑杆上端的锁定部分离时，后支撑杆相对于下推手杆能够转动，这样侧架的两个四连杆机构可以活动进行收折。这样，不仅收车开关与侧架锁定件的连接行程短，结构简单，锁止效果好，而且收车锁定机构隐藏设置在下推手杆中部，位置在座椅的后上方不易被儿童接触，更加安全。The car locking mechanism comprises a car switch and a side frame locking member, wherein a middle portion of the push bar is provided with a groove for receiving an upper end of the rear support bar, and an upper end of the rear support bar is inserted into the groove and passes through the side wall of the groove The hinged shaft is hinged, and the upper end of the rear support rod is provided with a locking portion, and the rear support rod phase When the pusher lever is rotated, the locking portion can move in the groove, the side frame locking member is slidably disposed in the pusher bar, and the car switch mounted on the middle pusher bar is connected with the side frame locking member through the steel wire; When the locking member protrudes into the groove and cooperates with the locking portion of the upper end of the rear support rod, the rear support rod cannot rotate relative to the lower push rod to realize the locking and fixing of the two, so that the two four-bar linkages of the side frame are locked When the side frame locking member is retracted and separated from the locking portion at the upper end of the rear support bar, the rear support bar can be rotated relative to the pusher bar, so that the two four-bar linkages of the side frame can be moved to be folded. In this way, not only the connection stroke of the car switch and the side frame locking member is short, the structure is simple, the locking effect is good, and the car locking mechanism is hidden in the middle of the lower push bar, and the position is not easily touched by children at the rear upper side of the seat, which is safer. .

其中，侧架锁定件和锁定部优选采用卡接、楔面或销接实现配合定位，这样具有更好的锁止效果；侧架锁定件通过弹簧作用力伸入凹槽内。Wherein, the side frame locking member and the locking portion are preferably engaged by snapping, wedge surface or pinning, so as to have a better locking effect; the side frame locking member protrudes into the groove by the force of the spring.

上述中推手杆锁定机构可以采用现有技术中的已经在折叠推车中使用的结构，而本发明采用一种优选实施方式，说明如下：The above-mentioned push lever locking mechanism can adopt the structure that has been used in the folding cart in the prior art, and the present invention adopts a preferred embodiment, which is explained as follows:

中推手杆锁定机构包括联动件和中推手杆锁定件，联动件滑动设置在下推手杆的中部并与设置在后支撑杆上端的联动部连接，中推手杆锁定件滑动设置在下推手杆上部并与设置在中推手杆下端的锁定孔插接配合，中推手杆锁定件通过钢线与联动件连接，中推手杆锁定件通过弹簧赋予***中推手杆上的锁定孔的趋势；当后支撑杆相对于下推手杆转动时，联动部带动联动件移动，联动件通过钢线带动中推手杆锁定件与中推手杆上的锁定孔插接锁定或者分离释放。这样，将中推手杆收折的锁定和释放与四连杆机构的收折进行联动，不需要另外增加外露开关来控制中推手杆收折，降低了成本，提高了安全性，并且通过协调设计中推手杆锁定件、联动件和联动部的配合关系，可以在四连杆机构收折到合适位置再启动中推手杆的收折，使用更加方便合理。The middle push lever locking mechanism comprises a linkage member and a middle push lever lock member, the linkage member is slidably disposed in a middle portion of the push down handle bar and is connected with a linkage portion disposed at an upper end of the rear support bar, and the middle push handle bar lock member is slidably disposed at an upper portion of the push down handle bar and The locking hole is arranged at the lower end of the middle push rod, and the middle push rod locking member is connected with the linkage through the steel wire, and the middle push handle lock member is biased by the spring to insert the locking hole on the push handle bar; when the rear support rod is opposite When the pusher lever is rotated, the linkage moves the linkage, and the linkage is inserted or locked by the steel wire to drive the middle lever locking member and the locking hole on the middle push lever to be locked or released. In this way, the locking and releasing of the folding of the middle push lever is linked with the folding of the four-bar linkage mechanism, and there is no need to additionally increase the exposure switch to control the folding of the middle push lever, thereby reducing the cost, improving the safety, and coordinating the design. The matching relationship between the middle lever pushing member, the linkage member and the linkage portion can be used to retract the four-bar linkage mechanism to the appropriate position and then the folding of the hand lever is used, which is more convenient and reasonable to use.

联动部与联动件的配合可以是多种形式的，只要能将联动部的转动转换为拉动钢线即可。在本发明中优选，联动部通过挂槽与挂钩形式的联动件钩挂连接，结构简单，配合可靠，体积小。在其他实施方式中，两者还可以通过长形槽/孔与销柱的方式配合，也可以是钢线的线环直接挂接在联动部上。The cooperation of the linkage portion and the linkage member may be in various forms as long as the rotation of the linkage portion can be converted into the pulling of the steel wire. Preferably, in the present invention, the linkage portion is hooked and connected with the linkage member in the form of a hook, and has a simple structure, reliable cooperation, and small volume. In other embodiments, the two can also be matched with the pin by the elongated slot/hole, or the wire loop of the steel wire can be directly attached to the linkage.

因为中推手杆锁定件的移动方向与联动件的移动方向不一致，所以中推手杆锁定件和联动件需要通过转向部件连接，该转向部件可以是供钢线绕行的滑轮或支柱。在本发明中优选，在下推手杆的上端内部铰接设置一杠杆件，杠杆件的一端通过长形槽/孔、销柱与中推手杆锁定件活动连接，杠杆件的另一端通过钢线与联动件连接，这样结构简单，调节方便。Since the moving direction of the middle push lever locking member does not coincide with the moving direction of the linkage, the middle push lever locking member and the linkage need to be connected by a steering member, which may be a pulley or a pillar for winding the steel wire. Preferably, in the present invention, a lever member is hingedly disposed inside the upper end of the push-down lever, and one end of the lever member is movably connected to the middle push lever locking member through the elongated slot/hole and the pin, and the other end of the lever member is coupled with the steel wire. The pieces are connected so that the structure is simple and the adjustment is convenient.

中推手杆锁定件与中推手杆上的锁定孔的插接配合结构可以参考公开号为CN204415487U的专利文献中的锁定齿轮结构。在本发明中优选，中推手杆锁定件为一柱销，该柱销与中推手杆和下推手杆的铰接轴不共轴，这样结构简单，体积小，锁定可靠。The plug-fit structure of the middle push lever locking member and the locking hole on the middle push lever can be referred to the locking gear structure disclosed in the patent document CN204415487U. Preferably, in the present invention, the middle push lever locking member is a stud, and the stud is not coaxial with the hinge shaft of the middle push lever and the push push lever, so that the structure is simple, the volume is small, and the locking is reliable.

上述前脚杆锁定机构，包括下前脚杆锁定钩和下前脚杆锁定部，下前脚杆锁定钩的中部铰接设置在上前脚杆下勾形的根部内，下前脚杆锁定钩的一端为与下前脚杆锁定部钩挂配合的钩部，下前脚杆锁定钩的一端为翘出上前脚杆外的释放部，下前脚杆锁定钩连接有弹性件从而赋予钩部靠近下前脚杆锁定部的趋势；当下前脚杆锁定钩的释放部被折叠的后脚杆压回时，下前脚杆锁定钩的钩部与下前脚杆锁定部分离，从而下前脚杆可以收折；当后脚杆和下前脚杆展开时，下前脚杆锁定钩的释放部向外翘出，下前脚杆锁定钩的钩部与下前脚杆锁定部钩挂配合，从而下前脚杆与上前脚杆锁定固接。这样，采用锁定钩形式将下前脚杆的折叠设置在侧架收折之后，更符合使用习惯，而且通过配合动作，使得折叠操作更加简单方便。The front foot bar locking mechanism includes a lower front foot locking hook and a lower front foot locking portion, and a middle portion of the lower front foot locking hook is hingedly disposed in a bottom portion of the upper front foot bar hook, and one end of the lower front foot locking hook is a lower front foot The rod locking portion hooks the engaged hook portion, and one end of the lower front foot rod locking hook is a release portion that is lifted out of the upper front foot rod, and the lower front foot rod locking hook is connected with the elastic member to give the hook portion a tendency to be close to the lower front foot rod locking portion; When the release portion of the front forefoot lock hook is pressed back by the folded rear foot, the hook portion of the lower front foot lock hook is separated from the lower front foot lock portion, so that the lower front foot can be folded; when the rear foot and the lower front foot are deployed The release portion of the lower front foot lock hook is outwardly lifted, and the hook portion of the lower front foot lock hook is hooked with the lower front foot lock portion, so that the lower front foot rod and the upper front foot rod are locked and fixed. In this way, the folding of the lower front foot bar is arranged in the form of the locking hook, and the folding of the side front frame is more suitable for the use habit, and the folding operation is more convenient and convenient by the matching action.

为了解决“左右两侧支架对折收拢后，因拿取位置不对容易散开”的问题，在第四横杆上设置有侧架对折锁定机构，包括滑动设置在第四横杆上的对折锁定开关和对折锁定销，对折锁定销的一端与对折锁定开关连接，对折锁定销的另一端伸出第四横杆的端部并与设置在横杆安装臂上的锁定孔插接配合从而将两者锁定固接，横杆安装臂固定在上推手杆上，横杆安装臂的端部设置有分别对应侧架对折状态和侧架展开状态的两个锁定孔。这样，在侧架对折状态和侧架展开状态都可以实现锁定，需要操作对折锁定开关才能解锁收折。In order to solve the problem that "the left and right sides of the bracket are folded and folded, the picking position is not easy to spread out", the side rail is folded on the fourth crossbar, and the folding lock switch is arranged on the fourth crossbar. And a folding lock pin, one end of the folding lock pin is connected with the folding lock switch, and the other end of the folding lock pin protrudes from the end of the fourth cross bar and is mated with the locking hole provided on the crossbar mounting arm to thereby The locking and fixing, the crossbar mounting arm is fixed on the upper pusher bar, and the end of the crossbar mounting arm is provided with two locking holes respectively corresponding to the side frame folded state and the side frame unfolded state. In this way, the side frame folding state and the side frame unfolding state can be locked, and the folding lock switch needs to be operated to unlock the folding.

顶棚架套装在第四横杆上可以前后翻转，并通过止位结构使其可以放平供遮阳使用。The roof rack set can be flipped back and forth on the fourth crossbar and can be leveled for use by the sun through the stop structure.

上述儿童手推车的使用过程如下：The use of the above children's trolleys is as follows:

儿童手推车在展开使用状态时，上推手杆锁定机构、中推手杆锁定机构、收车锁定机构、前脚杆锁定机构以及侧架对折锁定机构均处于锁定固接状态，整个车架支撑稳固。准备收车折叠时，先将顶棚架旋转至与推手杆平行状态；开始收车时，按压推手杆手把上的上推手杆伸缩开关，释放上推手杆锁定机构，向下推压，将上推手杆收缩推移至中推手杆底部；然后拉动收车开关，释放收车锁定机构，使后支撑杆与下推手杆之间解除锁定，向下推压，将两侧架的由前支撑杆、后支撑杆、上前脚杆、下推手杆组成的第一四连杆机构收折，使得下推手杆向上前脚杆运动并靠拢，同时前支撑杆通过与其固接的第一连杆带动由上前脚杆、第一连杆、第二连杆组成的第二四连杆机构收折，从而拉动后脚杆向上前脚杆运动并靠拢；当后支撑杆转动到一定位置后，通过联动配合使得中推手杆锁定机构释放，下推手杆与中推手杆解除锁定，继续推压，使在下推手杆向上前脚杆运动的同时收折中推手杆。推手杆、前后支撑杆组成的第一四连杆机构和后脚杆分别收纳在上前脚杆的两侧，后脚杆将前脚杆锁定机构释放。将前轮调整至靠前位置后，将下前脚杆收折至后脚杆下方，上前脚杆和下前脚杆铰接配合位置的下勾形设计使得前后轮的错位布置更合理。拉动侧架对折锁定开关，解除两侧架对折锁定，将两侧架沿第一横杆、第二横杆、第三横杆和第四横杆的两侧的铰接轴线翻折，两侧架对折到位后，侧架对折锁定机构将两侧架锁定，完成整个车架折叠。When the child trolley is in the deployed state, the push-up lever locking mechanism, the push-pull lever locking mechanism, the parking lock mechanism, the front-leg locking mechanism, and the side frame folding locking mechanism are all in a locked and fixed state, and the entire frame support is stable. When preparing to fold the car, first rotate the ceiling frame to the parallel state with the pusher bar; when starting to close the car, press the push-up lever telescopic switch on the handle of the pusher lever to release the push-up lever locking mechanism. Push down, push the push-up lever to the bottom of the push-pull lever; then pull the catch switch to release the lock-up mechanism, so that the rear support lever and the push-down lever are unlocked, push down, and the two sides of the bracket The first four-bar linkage mechanism consisting of the front support bar, the rear support bar, the upper front foot bar and the lower push hand bar is folded, so that the push-down hand bar moves up and forward to the front foot bar, and the front support bar passes through the first fixed line The connecting rod drives the second four-bar linkage mechanism composed of the upper front foot bar, the first connecting rod and the second connecting rod to fold, thereby pulling the rear foot bar to move forward and close to the front foot bar; when the rear supporting bar rotates to a certain position, the connecting The linkage cooperates to release the middle push lever locking mechanism, the push down lever and the middle push lever are unlocked, and the pushing is continued, so that the push lever is pushed in the folding forward movement of the front forward lever. The first four-link mechanism and the rear foot bar composed of the pusher lever and the front and rear support bars are respectively accommodated on both sides of the upper front foot bar, and the rear foot bar releases the front foot bar locking mechanism. After adjusting the front wheel to the front position, the lower front foot bar is folded down to the lower foot bar, and the lower hook shape of the upper front foot bar and the lower front foot bar hinged position makes the misalignment arrangement of the front and rear wheels more reasonable. Pulling the side frame to fold the lock switch, unlocking the two side frames, and folding the two side frames along the hinge axes of the two sides of the first cross bar, the second cross bar, the third cross bar and the fourth cross bar, the two sides frame After the fold is in place, the side frame folding locking mechanism locks the two side frames to complete the folding of the entire frame.

附图说明DRAWINGS

图1是本发明的结构示意图；Figure 1 is a schematic view of the structure of the present invention;

图2是本发明的收折示意图之一；Figure 2 is a schematic view of the folding of the present invention;

图3是本发明的收折示意图之二；Figure 3 is a second schematic view of the folding of the present invention;

图4是本发明的收折示意图之三；Figure 4 is a third schematic view of the folding of the present invention;

图5是本发明的收折示意图之四；Figure 5 is a fourth schematic view of the folding of the present invention;

图6是本发明的收折示意图之五；Figure 6 is a fifth schematic view of the folding of the present invention;

图7是本发明的收折示意图之六；Figure 7 is a sixth schematic view of the folding of the present invention;

图8是本发明的收折示意图之七；Figure 8 is a seventh schematic view of the folding of the present invention;

图9是本发明的收折示意图之八；Figure 9 is a schematic view of the folding of the present invention;

图10是本发明的收折示意图之九；Figure 10 is a ninth schematic view of the folding of the present invention;

图11是本发明的收折示意图之十；Figure 11 is a tenth schematic view of the folding of the present invention;

图12是本发明的侧视图；Figure 12 is a side view of the present invention;

图13是上推手杆锁定机构的结构示意图；Figure 13 is a schematic structural view of the push-up lever locking mechanism;

图14是收车锁定机构的结构示意图；Figure 14 is a schematic structural view of a car locking mechanism;

图15是中推手杆锁定机构的结构示意图之一；Figure 15 is a schematic structural view of the middle push lever locking mechanism;

图16是中推手杆锁定机构的结构示意图之二；Figure 16 is a second schematic structural view of the middle push lever locking mechanism;

图17是前脚杆锁定机构的结构示意图；Figure 17 is a schematic structural view of a front foot lever locking mechanism;

图18是侧架对折锁定机构的结构示意图。Figure 18 is a schematic view showing the structure of the side frame folding lock mechanism.

具体实施方式detailed description

下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship of the indications of "post", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" is based on The orientation or positional relationship shown in the figures is for the convenience of the description of the invention and the simplification of the description, and is not intended to indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be construed as a Limitations of the invention.

此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上，除非另有明确的限定。Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or connected integrally; may be mechanical or electrical; It can be directly connected or indirectly connected through an intermediate medium, which can be the internal connection between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.

如图1和图12所示，一种儿童手推车，包括左右对称布置的两个侧架以及连接在两侧架之间的横杆，每个侧架包括前脚杆10、后脚杆20和推手杆，前脚杆10下方安装有前轮13，后脚杆20下方安装有后轮21。As shown in FIGS. 1 and 12, a child stroller includes two side frames symmetrically arranged side to side and a cross bar connected between the side frames, each side frame including a front foot bar 10, a rear foot bar 20 and a pusher bar A front wheel 13 is mounted below the front foot bar 10, and a rear wheel 21 is mounted below the rear foot bar 20.

如图1、图2、图5和图6所示，推手杆包括推手杆手把611、上推手杆61、中推手杆62和下推手杆50，上推手杆61以能够上下伸缩的方式插设在中推手杆62中并通过上推手杆锁定机构实现锁定固接或释放伸缩，中推手杆62的下端和下推手杆50的上端铰接并通过中推手杆锁定机构实现锁定固接或释放收折。As shown in FIG. 1, FIG. 2, FIG. 5 and FIG. 6, the pusher bar includes a pusher handle 611, an up pusher 61, a pusher 62 and a pusher 50, and the pusher 61 is inserted into the upper and lower telescopic manner. It is disposed in the middle pusher 62 and is locked or released by the push-up lever locking mechanism. The lower end of the push-pull lever 62 and the upper end of the push-pull lever 50 are hinged and locked or released by the push-pull locking mechanism. fold.

如图1至图6所示，前脚杆10分为上前脚杆11和下前脚杆12，下前脚杆12下端安装前轮13，下前脚杆12的上端与上前脚杆11的下端铰接，前支撑杆30的下端与上前脚杆11的中部铰接，前支撑杆30的上端与下推手杆50的下端铰接，后支撑杆40的上端与下推手杆50的中部铰接，后支撑杆40的下端与支撑竖杆14的上端铰接，支撑竖杆14的下端与后脚杆20的上端铰接，支撑竖杆14的中部与上前脚杆11的上端固定连接或一体成型；第一连杆31的一端与前支撑杆30的下端固定连接或一体成型，第一连杆31的另一端与第二连杆32的一端铰接，第二连杆32的另一端与后脚杆20的中部铰接；这样，上前脚杆11与下推手杆50之间连接前支撑杆30和后支撑杆40且构成可折叠的第一四连杆机构，上前脚杆11与后脚杆20之间通过依次连接第一连杆31和第二连杆32且构成第二四连杆机构，折叠状态的第一四连杆机构与后脚杆20分别叠置在上前脚杆11上下两侧。As shown in FIGS. 1 to 6, the front foot bar 10 is divided into an upper front foot bar 11 and a lower front foot bar 12, and a lower front end of the lower front foot bar 12 is mounted with a front wheel 13, and an upper end of the lower front foot bar 12 is hinged to a lower end of the upper front foot bar 11, front The lower end of the support rod 30 is hinged to the middle of the upper front foot rod 11, the upper end of the front support rod 30 is hinged to the lower end of the lower push rod 50, the upper end of the rear support rod 40 is hinged to the middle of the lower push rod 50, and the lower end of the rear support rod 40 Hinged with the upper end of the support vertical rod 14, the lower end of the support vertical rod 14 is hinged with the upper end of the rear foot rod 20, and the middle portion of the support vertical rod 14 is fixedly connected or integrally formed with the upper end of the upper front foot rod 11; one end of the first link 31 is The lower end of the front support bar 30 is fixedly connected or integrally formed, the other end of the first link 31 is hinged to one end of the second link 32, and the other end of the second link 32 is hinged to the middle of the rear leg 20; thus, the front foot The front support bar 30 and the rear support bar 40 are connected between the rod 11 and the lower push bar 50 and constitute a foldable first four-bar linkage mechanism, and the first front link 31 is sequentially connected between the upper front leg 11 and the rear leg 20 The second link 32 and the second four-bar linkage mechanism, the first in the folded state Linkage rod 20 with the rear leg are stacked on upper and lower sides forefoot rod 11.

其中，后支撑杆40的上端与下推手杆50的中部之间通过收车锁定机构实现锁定固接或释放收折。虽然收车锁定机构也可以设置在第一四连杆机构、第二四连杆机构的其他铰接位置，但是优选设置在后支撑杆40与下推手杆50之间，这样具有下述优点：1、座椅一般安装在后支撑杆与下推手杆之间，收车锁定机构也设置在这里，直接锁止具有更好的锁定效果；2、在下推手杆50的中部具有足够的空间可以用于隐藏设置收车锁定机构，这样不仅可以避免关节和锁定机构暴露、靠前易被儿童玩耍造成安全隐患，而且给收车锁定机构提供了更多设计选择，可以设计更加稳定可靠的收车锁定机构；3、收车锁定开关一般设置在推手杆上，这样设计不仅使得收车锁定机构结构简单、使用方便可靠，而且也方便与推手杆上的其他锁定机构联动，以减少外露开关。Wherein, the upper end of the rear support bar 40 and the middle portion of the push-down hand lever 50 are locked or released by the closing locking mechanism. Although the car locking mechanism can also be disposed at other hinge positions of the first four-bar linkage and the second four-bar linkage mechanism, it is preferably disposed between the rear support bar 40 and the lower push bar 50, which has the following advantages: The seat is generally installed between the rear support bar and the push down hand lever, and the parking lock mechanism is also disposed here, the direct lock has a better locking effect; 2. There is sufficient space in the middle of the push down hand lever 50 for the Concealing the setting of the locking mechanism of the car, so as not only can prevent the joints and locking mechanism from being exposed, the safety hazard is easy to be played by the children in front, and more design options are provided for the car locking mechanism, and a more stable and reliable car locking mechanism can be designed. 3, the car lock switch is generally set on the pusher bar, this design not only makes the car lock mechanism simple, easy to use and reliable, but also facilitates linkage with other locking mechanisms on the pusher bar to reduce the exposed switch.

如图17所示，上前脚杆11的下端和下前脚杆12的上端分别呈相互配合的下勾形，上前脚杆11的下端和下前脚杆12的上端的铰接轴122设置在下勾形的头部，上前脚杆11的下端和下前脚杆12的上端通过设置在下勾形的根部的前脚杆锁定机构实现锁定固接或释放收折。上前脚杆和下前脚杆采用下勾形铰接结构，不仅具有较好的支撑连接性能，而且使得折叠后的前后轮具有更加合理的错位布置空间。As shown in Fig. 17, the lower end of the upper front leg 11 and the upper end of the lower front leg 12 are respectively fitted with a lower hook shape, and the lower end of the upper front leg 11 and the upper end of the lower front leg 12 are disposed in a lower hook shape. The head, the lower end of the upper front leg 11 and the upper end of the lower front leg 12 are locked or released by a front leg locking mechanism provided at the root of the lower hook. The upper front foot bar and the lower front foot bar adopt a lower hook-shaped hinge structure, which not only has better support connection performance, but also makes the folded front and rear wheels have more reasonable dislocation arrangement space.

横杆包括：The crossbar includes:

第一横杆70，设置在两侧架的上前脚杆11上部之间，第一横杆70的两端分别与两侧架的上前脚杆 11上部延伸出来的横杆安装臂铰接；或者，设置在两侧架的后支撑杆40下部之间，第一横杆70的两端分别与两侧架的后支撑杆40下部延伸出来的横杆安装臂铰接；这样可以确保支撑竖杆14和后支撑杆40铰接牢固从而保证第一四连杆机构结构稳固。本实施例优选设置在两侧架的后支撑杆40下部之间，这样当座椅杆41安装在后支撑杆40和下推手杆50上时，安装在两侧座椅杆41上的座椅套和第一横杆70分别对两侧架的后支撑杆40的上下两端都进行了连接，进一步保证了结构稳定。The first crossbar 70 is disposed between the upper front footrests 11 of the two side frames, and the two ends of the first crossbar 70 and the upper front legs of the two side frames respectively 11 The crossbar mounting arm extending from the upper portion is hinged; or is disposed between the lower portions of the rear support bar 40 of the two side frames, and the two ends of the first cross bar 70 respectively extend from the lower portion of the rear support bar 40 of the two side frames. The rod mounting arm is hinged; this ensures that the support vertical rod 14 and the rear support rod 40 are hingedly secured to ensure the stability of the first four-bar linkage mechanism. This embodiment is preferably disposed between the lower portions of the rear support bars 40 of the side frames such that when the seat bars 41 are mounted on the rear support bars 40 and the lower push bar 50, the seats mounted on the side seat bars 41 are mounted. The sleeve and the first cross bar 70 respectively connect the upper and lower ends of the rear support bar 40 of the two side frames, further ensuring structural stability.

第二横杆80，设置在两侧架的上前脚杆11下部之间，第二横杆80的两端分别与两侧架的上前脚杆11下部延伸出来的横杆安装臂铰接；这样可以确保两侧架的前脚杆10之间连接稳固，同时第二横杆80起到脚踏的作用。The second cross bar 80 is disposed between the lower front foot bars 11 of the two side frames, and the two ends of the second cross bar 80 are respectively hinged with the cross bar mounting arms extending from the lower front foot bars 11 of the two side frames; It is ensured that the connection between the front foot bars 10 of the side frames is stable, and the second cross bar 80 functions as a foot pedal.

第三横杆25，设置在两侧架的后脚杆20之间，第三横杆25的两端分别与两侧架的后脚杆20延伸出来的横杆安装臂铰接；这样可以确保两侧架的后脚杆20之间连接稳固。The third crossbar 25 is disposed between the rear leg 20 of the two side frames, and the two ends of the third cross bar 25 are respectively hinged with the crossbar mounting arms extending from the rear leg 20 of the two side frames; The connection between the rear foot bars 20 is stable.

第四横杆65，设置在两侧架的上推手杆61之间，第四横杆65的两端分别与两侧架的上推手杆61延伸出来的横杆安装臂铰接；或者，设置在两侧架的推手杆手把611之间，第四横杆65的两端分别与推手杆手把611延伸出来的横杆安装臂铰接。这样可以确保两侧架的推手杆之间连接稳固。The fourth crossbar 65 is disposed between the pusher bars 61 of the two side frames, and the two ends of the fourth cross bar 65 are respectively hinged with the crossbar mounting arms extended by the pusher bars 61 of the two side frames; or, Between the pusher levers 611 of the two side frames, the two ends of the fourth crossbar 65 are respectively hinged with the crossbar mounting arms from which the pusher handle 611 extends. This ensures a secure connection between the pushers of the two side frames.

如图1所示，当两侧架处于展开锁定状态时，第一横杆70、第二横杆80、第三横杆25和第四横杆65上的铰接轴分布于不同的平面；如图6-图11所示，当两侧架处于收拢折叠状态时，第一横杆70、第二横杆80、第三横杆25和第四横杆65上的铰接轴位于同一轴线上。这样，在侧架收拢折叠时，可以沿同一轴线对两侧架进行对向翻折，使得折叠后的车架体积更小；而在侧架展开锁定时，又可以确保结构稳定，避免推车在使用过程中产生松动或收折。As shown in FIG. 1, when the two side frames are in the unfolded locked state, the hinge axes on the first crossbar 70, the second crossbar 80, the third crossbar 25, and the fourth crossbar 65 are distributed on different planes; As shown in FIGS. 6-11, when the side frames are in the collapsed state, the hinge axes on the first rail 70, the second rail 80, the third rail 25, and the fourth rail 65 are on the same axis. In this way, when the side frame is folded and folded, the two side frames can be folded in the opposite direction along the same axis, so that the folded frame is smaller in size, and when the side frame is unfolded and locked, the structure can be ensured to be stable, and the cart can be avoided. Loose or folded during use.

上述各横杆的安装结构可以参见公开号为CN103507846A和CN204222933U的专利文献，本实施例以第三横杆25为例进行说明，在后脚杆20上设有用于安装和折叠的横杆安装臂，横杆安装臂分为和后脚杆20固定的尾部和远离后脚杆20的头部，横杆安装臂的头部上安装有铰接轴，同样的在第三横杆25上设有用于在侧架对向翻折时收纳横杆安装臂的横杆安装臂收纳槽，在横杆安装臂收纳槽的上下方对称设有配合铰接轴安装的横杆安装孔。横杆安装臂的形状结构可以根据折叠时部件避让和结构支撑的需要进行设计。For the mounting structure of the above-mentioned crossbars, reference may be made to the patent documents disclosed in the publications CN103507846A and CN204222933U. The third embodiment of the present invention is described by taking the third crossbar 25 as an example, and the rear leg 20 is provided with a crossbar mounting arm for mounting and folding. The crossbar mounting arm is divided into a tail portion fixed to the rear leg rod 20 and a head portion away from the rear foot rod 20, and an articulated shaft is mounted on the head of the crossbar mounting arm, and the same is provided on the third crossbar 25 for the side frame. The crossbar mounting arm housing groove for accommodating the crossbar mounting arm when folding is folded, and the crossbar mounting hole for fitting the hinge shaft is symmetrically provided on the upper and lower sides of the crossbar mounting arm housing groove. The shape of the crossbar mounting arm can be designed according to the needs of component avoidance and structural support during folding.

座椅及座椅套的安装结构可以采用现有技术中的已经在折叠推车中使用的结构，本发明仅提供一种优选实施方式以供说明：如图1所示，座椅杆41通过第一连接件411和第二连接件412安装在后支撑杆40和下推手杆50上，第一连接件411与后支撑杆40铰接并与座椅杆41固定连接，第二连接件412安装在下推手杆50上，座椅杆41搁置在第二连接件412上或者与第二连接件412插套滑动连接，两侧架的座椅杆41整体通过套设的推手杆上的软性材料与车体保持稳定连接。座椅杆41的承重由第一连接件411、第二连接件412和软性材料共同承担。其中软性材料可以选用布套的形式。The mounting structure of the seat and the seat cover can adopt the structure that has been used in the folding cart in the prior art, and the present invention only provides a preferred embodiment for explanation: as shown in FIG. 1, the seat rod 41 passes The first connecting member 411 and the second connecting member 412 are mounted on the rear support bar 40 and the lower push bar 50. The first connecting member 411 is hingedly coupled to the rear support bar 40 and fixedly coupled to the seat bar 41, and the second connecting member 412 is mounted. On the pusher bar 50, the seat bar 41 rests on the second connecting member 412 or is slidably coupled to the second connecting member 412. The seat bar 41 of the two side frames integrally passes through the soft material on the pusher bar. Maintain a stable connection with the car body. The load bearing of the seat lever 41 is shared by the first connecting member 411, the second connecting member 412, and the soft material. The soft material can be in the form of a cloth cover.

如图12、图13所示，上推手杆锁定机构包括上推手杆伸缩开关6111、上推手杆锁定销613、弹片614和弹片套612，弹片614固定在上推手杆61***中推手杆62的***部，弹片614的外翘端固定上推手杆锁定销613，上推手杆锁定销613伸出上推手杆61并与中推手杆62上的锁定销孔配合，弹片套612套设在弹片614外并通过滑动控制弹片614的外翘端纳入或翘出，弹片套612通过钢线与安装在推手杆手把611上的上推手杆伸缩开关6111连接。按下上推手杆伸缩开关6111时，钢线拉动弹片套612滑动将弹片614的外翘端纳入弹片套612使得弹片614外翘端上的上推手杆锁定销613从中推手杆62上的锁定销孔中脱出解除锁定状态，这样上推手杆61可以在中推手杆62中上下移动实现推手杆伸缩；松开按下上推手杆伸缩开关6111，上推手杆61移动到位后，弹片614在自身弹力作用下复位，弹片614的外翘端翘出弹片套612使得弹片614外翘端上的上推手杆锁定销613***中推手杆62上的锁定销孔中实现位置锁定。在中推手杆62上设置多个锁定销孔，这样可以调节推手杆的高度以方便使用者使用。As shown in FIG. 12 and FIG. 13 , the push-up lever locking mechanism includes a push-up lever telescopic switch 6111, an upper push-hand lever locking pin 613, a spring piece 614 and a spring sleeve 612. The elastic piece 614 is fixed to the push-hand lever 61 inserted into the push-hand lever 62. In the insertion portion, the outer end of the elastic piece 614 is fixed with the push-up lever locking pin 613, and the push-up lever locking pin 613 extends from the upper push-hand lever 61 and cooperates with the locking pin hole on the middle push-hand lever 62. The elastic sleeve 612 is sleeved on the elastic piece 614. The outer sleeve end of the slide control ejector 614 is inserted or lifted out, and the spring sleeve 612 is connected to the push-up lever telescopic switch 6111 mounted on the pusher handle 611 by a steel wire. When the push-up lever telescopic switch 6111 is pressed, the steel wire pulls the elastic sleeve 612 to slide the outer end of the elastic piece 614 into the elastic sleeve 612 so that the push-up lever locking pin 613 on the outer end of the elastic piece 614 pushes the locking pin on the hand lever 62. The hole is released from the unlocking state, so that the push-up lever 61 can be moved up and down in the middle push lever 62 to realize the push-pull telescopic expansion; when the push-up hand lever telescopic switch 6111 is pressed, the push-up hand lever 61 is moved into position, and the elastic piece 614 is elasticized by itself. Under the action of resetting, the outer curling end of the elastic piece 614 is lifted out of the elastic piece sleeve 612 so that the push-up hand lever locking pin 613 on the outer curling end of the elastic piece 614 is inserted into the locking pin hole on the middle pushing hand lever 62 to realize the position locking. A plurality of locking pin holes are provided in the middle push lever 62, so that the height of the pusher bar can be adjusted for the convenience of the user.

上述收车锁定机构可以采用现有技术中的已经在折叠推车中使用的结构，例如公开号为CN201257998Y 的专利文献所公开的结构，而本发明采用一种优选实施方式，说明如下：The above-mentioned car locking mechanism can adopt a structure that has been used in a folding cart in the prior art, for example, the publication number is CN201257998Y. The structure disclosed in the patent document, and the present invention adopts a preferred embodiment, which is explained as follows:

如图12、图14所示，收车锁定机构包括收车开关621和侧架锁定件51，下推手杆50的中部设有能够容纳后支撑杆40上端的凹槽52，后支撑杆40的上端***该凹槽52内并与该凹槽的侧壁通过铰接轴铰接，后支撑杆40的上端设有锁定部42，当后支撑杆40相对于下推手杆50转动时，锁定部42可以在凹槽52内活动，侧架锁定件51滑动设置在下推手杆50内，安装在中推手杆62上的收车开关621通过钢线与侧架锁定件51连接；当侧架锁定件51伸入凹槽52内与后支撑杆40上端的锁定部42配合定位时，后支撑杆40相对于下推手杆50不能转动从而实现两者锁定固接，这样侧架的两个四连杆机构被锁定无法活动；当侧架锁定件51退回并与后支撑杆40上端的锁定部42分离时，后支撑杆40相对于下推手杆50能够转动，这样侧架的两个四连杆机构可以活动进行收折。这样，不仅收车开关与侧架锁定件的连接行程短，结构简单，锁止效果好，而且收车锁定机构隐藏设置在下推手杆中部，位置在座椅的后上方不易被儿童接触，更加安全。As shown in FIG. 12 and FIG. 14, the parking lock mechanism includes a parking switch 621 and a side frame locking member 51. The middle portion of the push-down hand lever 50 is provided with a recess 52 capable of accommodating the upper end of the rear support bar 40, and the rear support bar 40. The upper end is inserted into the groove 52 and is hinged with the side wall of the groove through the hinge shaft. The upper end of the rear support rod 40 is provided with a locking portion 42. When the rear support rod 40 is rotated relative to the lower push rod 50, the locking portion 42 can be Moving in the recess 52, the side frame locking member 51 is slidably disposed in the lower push lever 50, and the parking switch 621 mounted on the middle push lever 62 is connected to the side frame locking member 51 by a steel wire; when the side frame locking member 51 is extended When the recess 52 is engaged with the locking portion 42 at the upper end of the rear support bar 40, the rear support bar 40 cannot be rotated relative to the pusher bar 50 to achieve the locking and fixing of the two, so that the two four-bar linkages of the side frame are The lock cannot move; when the side frame lock 51 is retracted and separated from the lock portion 42 at the upper end of the rear support bar 40, the rear support bar 40 can be rotated relative to the pusher bar 50, so that the two four-bar linkages of the side frame can be moved. Make a discount. In this way, not only the connection stroke of the car switch and the side frame locking member is short, the structure is simple, the locking effect is good, and the car locking mechanism is hidden in the middle of the lower push bar, and the position is not easily touched by children at the rear upper side of the seat, which is safer. .

其中，侧架锁定件51和锁定部42优选采用卡接、楔面或销接实现配合定位，这样具有更好的锁止效果；侧架锁定件51通过弹簧作用力伸入凹槽52内。Wherein, the side frame locking member 51 and the locking portion 42 are preferably engaged by snapping, wedge surface or pinning, so as to have a better locking effect; the side frame locking member 51 protrudes into the groove 52 by a spring force.

如图12、图15、图16所示，中推手杆锁定机构包括联动件53和中推手杆锁定件54，联动件53滑动设置在下推手杆50的中部并与设置在后支撑杆40上端的联动部44连接，中推手杆锁定件54滑动设置在下推手杆50上部并与设置在中推手杆62下端的锁定孔622插接配合，中推手杆锁定件54通过钢线与联动件53连接，中推手杆锁定件54通过弹簧赋予***中推手杆62上的锁定孔622的趋势；当后支撑杆40相对于下推手杆50转动时，联动部44带动联动件53移动，联动件53通过钢线带动中推手杆锁定件54与中推手杆62上的锁定孔622插接锁定或者分离释放。这样，将中推手杆62收折的锁定和释放与四连杆机构的收折进行联动，不需要另外增加外露开关来控制中推手杆收折，降低了成本，提高了安全性，并且通过协调设计中推手杆锁定件54、联动件53和联动部44的配合关系，可以在四连杆机构收折到合适位置再启动中推手杆的收折，使用更加方便合理。As shown in FIG. 12, FIG. 15, and FIG. 16, the middle push lever locking mechanism includes a link member 53 and a middle push lever lock member 54, and the link member 53 is slidably disposed at a middle portion of the push down handle bar 50 and is disposed at an upper end of the rear support bar 40. The linkage portion 44 is connected, and the middle push lever locking member 54 is slidably disposed on the upper portion of the lower push handle 50 and is engaged with the locking hole 622 disposed at the lower end of the middle push lever 62. The middle push lever lock 54 is connected to the linkage 53 through a steel wire. The middle push lever locking member 54 is biased by the spring to the locking hole 622 inserted into the middle push lever 62; when the rear support lever 40 is rotated relative to the lower push lever 50, the linkage portion 44 drives the linkage 53 to move, and the linkage 53 passes through the steel. The wire-carrying middle push lever locking member 54 is latched or released and released from the locking hole 622 on the middle pusher lever 62. In this way, the locking and releasing of the folding of the middle push lever 62 is linked with the folding of the four-bar linkage mechanism, and there is no need to additionally increase the exposure switch to control the folding of the middle push lever, thereby reducing the cost, improving the safety, and coordinating In the design, the matching relationship between the push rod locking member 54, the linkage member 53 and the linkage portion 44 can be used to retract the four-bar linkage mechanism to the appropriate position and then the folding of the hand lever is used, which is more convenient and reasonable to use.

联动部44与联动件53的配合可以是多种形式的，只要能将联动部的转动转换为拉动钢线即可。在本实施例中优选，如图15所示，联动部44通过挂槽与挂钩形式的联动件53钩挂连接，结构简单，配合可靠，体积小。在其他实施方式中，两者还可以通过长形槽/孔与销柱的方式配合，也可以是钢线的线环直接挂接在联动部上。The cooperation of the interlocking portion 44 and the link member 53 may be in various forms as long as the rotation of the interlocking portion can be converted into the pulling of the steel wire. Preferably, in the embodiment, as shown in FIG. 15, the linkage portion 44 is hooked and connected with the linkage 53 in the form of a hook by a hanging slot, and has a simple structure, reliable cooperation, and small volume. In other embodiments, the two can also be matched with the pin by the elongated slot/hole, or the wire loop of the steel wire can be directly attached to the linkage.

因为中推手杆锁定件54的移动方向与联动件53的移动方向不一致，所以中推手杆锁定件54和联动件53需要通过转向部件连接，该转向部件可以是供钢线绕行的滑轮或支柱。在本实施例中优选，如图16所示，在下推手杆50的上端内部铰接设置一杠杆件55，杠杆件55的一端通过长形槽/孔、销柱与中推手杆锁定件54活动连接，杠杆件55的另一端通过钢线与联动件53连接，这样结构简单，调节方便。Since the moving direction of the middle push lever lock 54 does not coincide with the moving direction of the link 53, the middle push lever lock 54 and the link 53 need to be connected by a steering member, which may be a pulley or a pillar for winding a steel wire. . Preferably, in the present embodiment, as shown in FIG. 16, a lever member 55 is hingedly disposed inside the upper end of the push-down hand lever 50, and one end of the lever member 55 is movably connected to the middle push lever lock member 54 through the elongated slot/hole and the pin. The other end of the lever member 55 is connected to the linkage member 53 through a steel wire, so that the structure is simple and the adjustment is convenient.

中推手杆锁定件54与中推手杆62上的锁定孔622的插接配合结构可以参考公开号为CN204415487U的专利文献中的锁定齿轮结构。在本实施例中优选，如图16所示，中推手杆锁定件54为一柱销，该柱销与中推手杆62和下推手杆50的铰接轴不共轴，这样结构简单，体积小，锁定可靠。The plug-fit structure of the middle push lever lock 54 and the lock hole 622 on the push handle 62 can be referred to the lock gear structure disclosed in the patent document CN204415487U. Preferably, in the present embodiment, as shown in FIG. 16, the middle push lever locking member 54 is a stud which is not coaxial with the hinge shaft of the middle push lever 62 and the push push lever 50, so that the structure is simple and the volume is small. The lock is reliable.

如图17所示，上述前脚杆锁定机构，包括下前脚杆锁定钩111和下前脚杆锁定部121，下前脚杆锁定钩111的中部铰接设置在上前脚杆11下勾形的根部内，下前脚杆锁定钩111的一端为与下前脚杆锁定部121钩挂配合的钩部1112，下前脚杆锁定钩111的一端为翘出上前脚杆11外的释放部1111，下前脚杆锁定钩111连接有弹性件从而赋予钩部1112靠近下前脚杆锁定部121的趋势；当下前脚杆锁定钩111的释放部1111被折叠的后脚杆20压回时，下前脚杆锁定钩111的钩部1112与下前脚杆锁定部121分离，从而下前脚杆12可以收折；当后脚杆20和下前脚杆12展开时，下前脚杆锁定钩111的释放部1111向外翘出，下前脚杆锁定钩111的钩部1112与下前脚杆锁定部121钩挂配合，从而下前脚杆12与上前脚杆11锁定固接。这样，采用锁定钩形式将下前脚杆的折叠设置在侧架收折之后，更符合使用习惯，而且通过配合动作，使得折叠操作更加简单方便。As shown in FIG. 17, the front foot lever locking mechanism includes a lower front foot locking hook 111 and a lower front foot locking portion 121, and a middle portion of the lower front foot locking hook 111 is hingedly disposed in a root portion of the upper front foot 11 under the hook shape, One end of the front foot lever locking hook 111 is a hook portion 1112 that is hooked and engaged with the lower front foot rod locking portion 121. One end of the lower front foot rod locking hook 111 is a release portion 1111 that protrudes out of the upper front foot rod 11, and the lower front foot rod locking hook 111 The elastic member is coupled to give the hook portion 1112 a tendency to approach the lower front forefoot locking portion 121; when the rear toe bar 20 of the lower forefoot lever locking hook 111 is pressed back by the folded rear leg 20, the hook portion 1112 of the lower forefoot lever locking hook 111 is The lower front leg locking portion 121 is separated, so that the lower front foot bar 12 can be folded; when the rear foot bar 20 and the lower front foot bar 12 are unfolded, the release portion 1111 of the lower front leg locking hook 111 is outwardly tilted, and the lower front leg locking hook 111 The hook portion 1112 is hooked and engaged with the lower front leg lock portion 121, so that the lower front foot bar 12 and the upper front foot bar 11 are locked and fixed. In this way, the folding of the lower front foot bar is arranged in the form of the locking hook, and the folding of the side front frame is more suitable for the use habit, and the folding operation is more convenient and convenient by the matching action.

为了解决“左右两侧支架对折收拢后，因拿取位置不对容易散开”的问题，在第四横杆上设置有侧架对折锁定机构，如图1、图18所示，包括滑动设置在第四横杆65上的对折锁定开关651和对折锁定销6511，对折锁定销6511的一端与对折锁定开关651连接，对折锁定销6511的另一端伸出第四横杆65的端部并与设置在横杆安装臂612上的锁定孔6121插接配合从而将两者锁定固接，横杆安装臂611固定在上推手杆61上，横杆安装臂611的端部设置有分别对应侧架对折状态和侧架展开状态的两个锁定孔6121。这样，在侧架对折状态和侧架展开状态都可以实现锁定，需要操作对折锁定开关才能解锁收折。In order to solve the problem that the left and right sides of the bracket are folded and folded, the position is not easy to spread due to the wrong position, the side rail is provided with a side frame folding locking mechanism, as shown in FIG. 1 and FIG. 18, including the sliding arrangement. a folding lock switch 651 and a folding lock pin 6511 on the fourth cross bar 65, One end of the folding lock pin 6511 is connected to the folding lock switch 651, and the other end of the folding lock pin 6511 protrudes from the end of the fourth cross bar 65 and is mated with the locking hole 6121 provided on the crossbar mounting arm 612 to The locker is fixed, and the crossbar mounting arm 611 is fixed to the upper pusher lever 61. The end of the crossbar mounting arm 611 is provided with two locking holes 6121 respectively corresponding to the side frame folded state and the side frame unfolded state. In this way, the side frame folding state and the side frame unfolding state can be locked, and the folding lock switch needs to be operated to unlock the folding.

如图1、图2、图18所示，顶棚架652套装在第四横杆65上可以前后翻转，并通过止位结构使其可以放平供遮阳使用。As shown in FIG. 1 , FIG. 2 and FIG. 18 , the top scaffolding 652 is set on the fourth cross bar 65 and can be flipped back and forth, and can be flattened for use by the sun through the stop structure.

如图1所示，儿童手推车在展开使用状态时，上推手杆锁定机构、中推手杆锁定机构、收车锁定机构、前脚杆锁定机构以及侧架对折锁定机构均处于锁定固接状态，整个车架支撑稳固。As shown in FIG. 1 , when the child trolley is in the deployed state, the push-up lever locking mechanism, the middle push lever locking mechanism, the parking lock mechanism, the front foot lock mechanism, and the side frame folding lock mechanism are all in a locked and fixed state, and the entire vehicle is The frame support is stable.

如图2所示，准备收车折叠时，先将顶棚架652旋转至与推手杆平行状态；As shown in FIG. 2, when preparing to fold the vehicle, the top frame 652 is first rotated to be parallel with the pusher bar;

如图3所示，按压推手杆手把611上的上推手杆伸缩开关6111，释放上推手杆锁定机构，向下推压，将上推手杆61收缩推移至中推手杆62底部；As shown in FIG. 3, the push-up lever telescopic switch 6111 on the pusher handle 611 is pressed, the push-up lever lock mechanism is released, and the push-up lever 61 is pushed down to retract the push-up hand lever 61 to the bottom of the push-pull lever 62;

如图4所示，然后拉动收车开关621，释放收车锁定机构，使后支撑杆40与下推手杆50之间解除锁定，向下推压，将两侧架的由前支撑杆30、后支撑杆40、上前脚杆11、下推手杆50组成的第一四连杆机构收折，使得下推手杆50向上前脚杆11运动并靠拢，同时前支撑杆30通过与其固接的第一连杆31带动由上前脚杆11、第一连杆31、第二连杆32组成的第二四连杆机构收折，从而拉动后脚杆20向上前脚杆11运动并靠拢；As shown in FIG. 4, the car switch 621 is then pulled to release the car lock mechanism, so that the rear support bar 40 and the pusher bar 50 are unlocked, and pushed downwards, and the front support bar 30 of the two side frames, The first four-bar linkage mechanism composed of the rear support bar 40, the upper front foot bar 11, and the lower push hand bar 50 is folded, so that the push-down hand bar 50 moves up and forwards toward the front foot bar 11, and the front support bar 30 passes through the first fixed connection thereto. The connecting rod 31 drives the second four-bar linkage mechanism composed of the upper front foot rod 11, the first connecting rod 31 and the second connecting rod 32 to be folded, thereby pulling the rear foot rod 20 to move forward and close to the front foot rod 11;

如图5所示，当后支撑杆40转动到一定位置后，通过联动配合使得中推手杆锁定机构释放，下推手杆50与中推手杆62解除锁定，继续推压，使在下推手杆50向上前脚杆11运动的同时收折中推手杆62。As shown in FIG. 5, when the rear support bar 40 is rotated to a certain position, the push-pull lever locking mechanism is released by the interlocking engagement, the push-down hand lever 50 and the middle push-hand lever 62 are unlocked, and the pushing is continued, so that the push-pull lever 50 is pushed upward. While the front leg 11 is moving, the hand lever 62 is pushed in the folded state.

如图6所示，推手杆、前后支撑杆组成的第一四连杆机构和后脚杆20分别收纳在上前脚杆11的两侧，后脚杆20将前脚杆锁定机构释放。As shown in FIG. 6, the first four-bar linkage mechanism and the rear footrest 20 composed of the pusher lever and the front and rear support levers are respectively accommodated on both sides of the upper front footrest 11, and the rearfoot lever 20 releases the front footbar locking mechanism.

如图7所示，将前轮13调整至靠前位置后，将下前脚杆12收折至后脚杆20下方，如图8所示，上前脚杆和下前脚杆铰接配合位置的下勾形设计使得前后轮的错位布置更合理。As shown in FIG. 7, after the front wheel 13 is adjusted to the front position, the lower front foot bar 12 is folded down to the rear foot bar 20, as shown in FIG. 8, the lower front foot bar and the lower front foot bar are hinged to the lower hook shape. The design makes the misalignment of the front and rear wheels more reasonable.

如图9所示，拉动侧架对折锁定开关651，解除两侧架对折锁定，将两侧架沿第一横杆70、第二横杆80、第三横杆25和第四横杆65的两侧的铰接轴线翻折，如图10、图11所示，两侧架对折到位后，侧架对折锁定机构将两侧架锁定，完成整个车架折叠。As shown in FIG. 9, the side frame is folded in half to lock the lock switch 651, and the two side frames are folded in half, and the two side frames are along the first cross bar 70, the second cross bar 80, the third cross bar 25, and the fourth cross bar 65. The hinge axes of the two sides are folded. As shown in FIG. 10 and FIG. 11, after the two side frames are folded in place, the side frame folding locking mechanism locks the two side frames to complete the folding of the entire frame.

一种儿童手推车的收车机构，包括左右对称布置的两个侧架以及连接在两侧架之间的横杆，每个侧架包括前脚杆10、后脚杆20和推手杆，前脚杆10下方安装有前轮13，后脚杆20下方安装有后轮21，前支撑杆30的下端与前脚杆10的中部铰接，前支撑杆30的上端与推手杆的下端铰接，后支撑杆40的上端与推手杆的中部铰接，后支撑杆40的下端与支撑竖杆14的上端铰接，支撑竖杆14的下端与后脚杆20的上端铰接，支撑竖杆14的中部与前脚杆10的上端固定连接或一体成型；第一连杆31的一端与前支撑杆30的下端固定连接或一体成型，第一连杆31的另一端与第二连杆32的一端铰接，第二连杆32的另一端与后脚杆20的中部铰接；这样，前脚杆10与推手杆之间连接前支撑杆30和后支撑杆40且构成可折叠的第一四连杆机构，前脚杆10与后脚杆20之间通过依次连接第一连杆31和第二连杆32且构成第二四连杆机构，折叠状态的第一四连杆机构与后脚杆20分别叠置在前脚杆10上下两侧；其中，后支撑杆40的上端与推手杆的中部之间通过收车锁定机构实现锁定固接或释放收折。A car-receiving mechanism for a child trolley, comprising two side frames symmetrically arranged on the left and right sides and a cross bar connected between the two side frames, each side frame including a front foot bar 10, a rear foot bar 20 and a pusher bar, and a front foot bar 10 The front wheel 13 is mounted, and the rear wheel 21 is mounted below the rear foot bar 20. The lower end of the front support bar 30 is hinged to the middle of the front foot bar 10. The upper end of the front support bar 30 is hinged to the lower end of the pusher bar, and the upper end of the rear support bar 40 is The middle portion of the push lever is hinged, the lower end of the rear support rod 40 is hinged with the upper end of the support vertical rod 14, the lower end of the support vertical rod 14 is hinged with the upper end of the rear foot rod 20, and the middle portion of the support vertical rod 14 is fixedly connected with the upper end of the front foot rod 10 or One end of the first link 31 is fixedly connected or integrally formed with the lower end of the front support bar 30, the other end of the first link 31 is hinged to one end of the second link 32, and the other end of the second link 32 is The middle portion of the rear foot bar 20 is hinged; thus, the front foot bar 10 and the pusher bar are connected between the front support bar 30 and the rear support bar 40 and constitute a foldable first four-bar linkage mechanism, and the front foot bar 10 and the rear leg bar 20 are sequentially passed. Connecting the first link 31 and the second link 32 And forming a second four-bar linkage mechanism, the first four-bar linkage mechanism and the rear foot lever 20 in a folded state are respectively stacked on the upper and lower sides of the front footrest 10; wherein the upper end of the rear support pole 40 and the middle of the pusher lever are received The vehicle locking mechanism achieves locking or release folding.

一种儿童手推车，包括如上所述的收车机构。A children's cart comprising a pick-up mechanism as described above.

如上所述的一种儿童手推车的收车折叠方法，拉动收车开关621，释放收车锁定机构，使后支撑杆40与推手杆之间解除锁定，向下推压，将两侧架的由前支撑杆30、后支撑杆40、前脚杆10、推手杆组成的第一四连杆机构收折，使得推手杆向上前脚杆11运动并靠拢，同时前支撑杆30通过与其固接的第一连杆31带动由前脚杆10、第一连杆31、第二连杆32组成的第二四连杆机构收折，从而拉动后脚杆20向上前脚杆11运动并靠拢；继续推压，推手杆、前后支撑杆组成的第一四连杆机构和后脚杆20分别收纳在前脚杆10的两侧。The folding and folding method of the child trolley as described above pulls the car switch 621 to release the car lock mechanism, so that the rear support bar 40 and the push bar are unlocked, and the push is pushed downward to The first four-bar linkage mechanism composed of the front support bar 30, the rear support bar 40, the front foot bar 10, and the pusher bar is folded, so that the pusher bar moves toward the front forefoot bar 11 and closes, and the front support bar 30 passes through the first fixed connection thereto. The connecting rod 31 drives the second four-bar linkage mechanism composed of the front foot bar 10, the first connecting rod 31 and the second connecting rod 32 to be folded, thereby pulling the rear foot bar 20 to move forward and close to the front foot bar 11; continue pushing, pushing the hand lever The first four-bar linkage mechanism and the rear leg lever 20 composed of the front and rear support rods are respectively received on both sides of the front footrest 10.

一种儿童手推车的脚杆，包括前脚杆10和后脚杆20，所述前脚杆10分为上前脚杆11和下前脚杆12，下前脚杆12下端安装前轮13，下前脚杆12的上端与上前脚杆11的下端铰接，后脚杆20下方安装有后轮21，后脚杆20的上端与上前脚杆11的上端铰接，所述上前脚杆11的下端和下前脚杆12的上端分别呈相互配合的下勾形，上前脚杆11的下端和下前脚杆12的上端的铰接轴122设置在下勾形的头部，上前脚杆11的下端和下前脚杆12的上端通过设置在下勾形的根部的前脚杆锁定机构实现锁定固接或释放收折。A foot bar for a child cart comprising a front foot bar 10 and a rear foot bar 10, the front foot bar 10 being divided into an upper front foot bar 11 and a lower front foot bar 12, a lower front end of the lower front foot bar 12 being mounted with a front wheel 13, and an upper end of the lower front foot bar 12 The lower end of the upper front leg 11 is hinged, and the rear wheel 21 is mounted with a rear wheel 21, and the upper end of the rear leg 20 is hinged with the upper end of the upper front leg 11, and the upper end of the upper front leg 11 and the upper end of the lower front leg 12 are respectively Phase The lower hooks of the upper front leg 11 and the upper end of the lower front leg 12 are disposed on the lower hook head, and the lower end of the upper front leg 11 and the upper end of the lower front leg 12 are disposed in the lower hook shape. The front foot lever locking mechanism of the root enables locking or release folding.

一种儿童手推车，包括左右对称布置的两个侧架以及连接在两侧架之间的横杆，每个侧架包括脚杆和推手杆，所述脚杆是如上所述的脚杆。A child cart comprising two side frames arranged symmetrically left and right and a cross bar connected between the side frames, each side frame comprising a foot bar and a pusher bar, the foot bar being a foot bar as described above.

如上所述的一种儿童手推车的脚杆折叠方法，将后脚杆20收纳在上前脚杆11的下侧，后脚杆20将前脚杆锁定机构释放，将下前脚杆12收折至后脚杆20的下方。The foot bar folding method of the child trolley as described above, the rear foot bar 20 is received on the lower side of the upper front foot bar 11, the rear foot bar 20 releases the front foot bar locking mechanism, and the lower front foot bar 12 is folded to the rear foot bar 20. Below.

一种儿童手推车的推手杆，包括推手杆手把611、上推手杆61、中推手杆62和下推手杆50，上推手杆61以能够上下伸缩的方式插设在中推手杆62中并通过上推手杆锁定机构实现锁定固接或释放伸缩，中推手杆62的下端和下推手杆50的上端铰接并通过中推手杆锁定机构实现锁定固接或释放收折。A pusher bar for a child's trolley includes a pusher handle 611, a push up handle 61, a push pusher 62 and a push down handle 50. The push up handle 61 is inserted into the middle pusher 62 in a manner that can be up and down telescopically The push-up lever locking mechanism realizes locking fixation or release expansion and contraction, and the lower end of the push-pull lever 62 and the upper end of the push-down lever 50 are hinged and locked or released by the push-pull lever locking mechanism.

一种儿童手推车，包括左右对称布置的两个侧架以及连接在两侧架之间的横杆，每个侧架包括脚杆和推手杆，所述推手杆是如上所述的推手杆。A child stroller comprising two side frames arranged symmetrically to the left and right and a cross bar connected between the side frames, each side frame comprising a foot bar and a pusher bar, the pusher bar being a pusher bar as described above.

一种儿童手推车的推手杆收折方法，按压推手杆手把611上的上推手杆伸缩开关6111，释放上推手杆锁定机构，向下推压，将上推手杆61收缩推移至中推手杆62中；然后使下推手杆50相对于支撑件转动，并通过联动配合使得中推手杆锁定机构释放，下推手杆50与中推手杆62解除锁定，继续推压，使下推手杆50和中推手杆62收折一起。A method for folding a pusher bar of a child's trolley, pressing the push-up lever telescopic switch 6111 on the pusher handle 611, releasing the push-up lever lock mechanism, pushing down, and retracting the push-up hand lever 61 to the push-pull lever 62 Then, the pusher bar 50 is rotated relative to the support member, and the pusher bar lock mechanism is released by the interlocking engagement, the pusher bar 50 and the pusher bar 62 are unlocked, and the push is continued, so that the pusher bar 50 and the pusher are pushed down. The rod 62 is folded together.

在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在不脱离本发明的原理和宗旨的情况下在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 Although the embodiments of the present invention have been shown and described, it is understood that the foregoing embodiments are illustrative and not restrictive Variations, modifications, alterations and variations of the above-described embodiments are possible within the scope of the invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

一种儿童手推车的收车机构，包括左右对称布置的两个侧架以及连接在两侧架之间的横杆，每个侧架包括前脚杆(10)、后脚杆(20)和推手杆，前脚杆(10)下方安装有前轮(13)，后脚杆(20)下方安装有后轮(21)，其特征在于，前支撑杆(30)的下端与前脚杆(10)的中部铰接，前支撑杆(30)的上端与推手杆的下端铰接，后支撑杆(40)的上端与推手杆的中部铰接，后支撑杆(40)的下端与支撑竖杆(14)的上端铰接，支撑竖杆(14)的下端与后脚杆(20)的上端铰接，支撑竖杆(14)的中部与前脚杆(10)的上端固定连接或一体成型；第一连杆(31)的一端与前支撑杆(30)的下端固定连接或一体成型，第一连杆(31)的另一端与第二连杆(32)的一端铰接，第二连杆(32)的另一端与后脚杆(20)的中部铰接；这样，前脚杆(10)与推手杆之间连接前支撑杆(30)和后支撑杆(40)且构成可折叠的第一四连杆机构，前脚杆(10)与后脚杆(20)之间通过依次连接第一连杆(31)和第二连杆(32)且构成第二四连杆机构，折叠状态的第一四连杆机构与后脚杆(20)分别叠置在前脚杆(10)上下两侧；其中，后支撑杆(40)的上端与推手杆的中部之间通过收车锁定机构实现锁定固接或释放收折。A car-receiving mechanism for a child trolley, comprising two side frames symmetrically arranged on the left and right sides and a cross bar connected between the two side frames, each side frame comprising a front foot bar (10), a rear foot bar (20) and a pusher bar. A front wheel (13) is mounted under the front foot bar (10), and a rear wheel (21) is mounted below the rear foot bar (20), wherein the lower end of the front support bar (30) is hinged to the middle of the front foot bar (10). The upper end of the front support bar (30) is hinged to the lower end of the pusher bar, the upper end of the rear support bar (40) is hinged to the middle of the pusher bar, and the lower end of the rear support bar (40) is hinged to the upper end of the support vertical bar (14) to support The lower end of the vertical rod (14) is hinged with the upper end of the rear foot rod (20), and the middle portion of the supporting vertical rod (14) is fixedly connected or integrally formed with the upper end of the front foot rod (10); one end of the first connecting rod (31) and the front end The lower end of the support rod (30) is fixedly connected or integrally formed, the other end of the first link (31) is hinged to one end of the second link (32), and the other end of the second link (32) is connected to the rear leg (20). The middle portion is hinged; thus, the front foot bar (10) and the pusher bar are connected between the front support bar (30) and the rear support bar (40) and constitute a foldable first four-bar linkage mechanism, the front foot bar (10) And a first four-link mechanism and a rear leg (20) in a folded state by sequentially connecting the first link (31) and the second link (32) with the rear leg (20) ) are respectively stacked on the upper and lower sides of the front foot bar (10); wherein the upper end of the rear support bar (40) and the middle portion of the pusher bar are locked or released by the closing locking mechanism.
根据权利要求1所述的一种儿童手推车的收车机构，其特征在于，所述收车锁定机构包括收车开关(621)和侧架锁定件(51)，推手杆的中部设有能够容纳后支撑杆(40)上端的凹槽(52)，后支撑杆(40)的上端***该凹槽(52)内并与该凹槽的侧壁通过铰接轴铰接，后支撑杆(40)的上端设有锁定部(42)，当后支撑杆(40)相对于推手杆转动时，锁定部(42)可以在凹槽(52)内活动，侧架锁定件(51)滑动设置在推手杆内，收车开关(621)通过钢线与侧架锁定件(51)连接；当侧架锁定件(51)伸入凹槽(52)内与后支撑杆(40)上端的锁定部(42)配合定位时，后支撑杆(40)相对于推手杆不能转动从而实现两者锁定固接，这样侧架的两个四连杆机构被锁定无法活动；当侧架锁定件(51)退回并与后支撑杆(40)上端的锁定部(42)分离时，后支撑杆(40)相对于推手杆能够转动，这样侧架的两个四连杆机构可以活动进行收折。A pick-up mechanism for a children's trolley according to claim 1, wherein the parking lock mechanism comprises a parking switch (621) and a side frame locking member (51), and the middle portion of the pusher lever is provided to be able to accommodate a groove (52) at an upper end of the rear support rod (40), an upper end of the rear support rod (40) is inserted into the groove (52) and hinged with the side wall of the groove by an hinge shaft, and the rear support rod (40) The upper end is provided with a locking portion (42). When the rear support rod (40) rotates relative to the push rod, the locking portion (42) can move in the groove (52), and the side frame locking member (51) slides on the push rod. Inside, the car switch (621) is connected to the side frame locking member (51) by a steel wire; when the side frame locking member (51) projects into the recess (52) and the locking portion at the upper end of the rear support bar (40) (42) When the positioning is coordinated, the rear support bar (40) cannot be relative to the pusher bar Rotating to achieve the locking of the two, so that the two four-bar linkages of the side frame are locked and inactive; when the side frame locking member (51) is retracted and separated from the locking portion (42) at the upper end of the rear support bar (40) The rear support bar (40) is rotatable relative to the pusher bar such that the two four-bar linkages of the side frame can be moved for folding.
根据权利要求1所述的一种儿童手推车的收车机构，其特征在于，所述前脚杆(10)分为上前脚杆(11)和下前脚杆(12)，前支撑杆(30)的下端与上前脚杆(11)的中部铰接，支撑竖杆(14)的中部与上前脚杆(11)的上端固定连接或一体成型，下前脚杆(12)下端安装前轮(13)，下前脚杆(12)的上端与上前脚杆(11)的下端铰接，所述上前脚杆(11)的下端和下前脚杆(12)的上端分别呈相互配合的下勾形，上前脚杆(11)的下端和下前脚杆(12)的上端的铰接轴(122)设置在下勾形的头部，上前脚杆(11)的下端和下前脚杆(12)的上端通过设置在下勾形的根部的前脚杆锁定机构实现锁定固接或释放收折。A pick-up mechanism for a children's trolley according to claim 1, wherein said front foot bar (10) is divided into an upper front foot bar (11) and a lower front foot bar (12), and a front support bar (30) The lower end is hinged to the middle of the upper front leg (11), the middle of the support vertical bar (14) is fixedly connected or integrally formed with the upper end of the upper front leg (11), and the front wheel (13) is mounted at the lower end of the lower front leg (12). The upper end of the front leg (12) is hinged to the lower end of the upper forefoot (11), and the lower end of the upper forefoot (11) and the upper end of the lower forefoot (12) respectively have a lower hook shape, the upper front foot ( The lower end of the 11) and the hinge shaft (122) of the upper end of the lower front leg (12) are disposed on the lower hook head, and the lower end of the upper front leg (11) and the upper end of the lower front leg (12) are disposed in the lower hook shape. The forefoot locking mechanism of the root achieves a locking or release fold.
根据权利要求3所述的一种儿童手推车的收车机构，其特征在于，所述前脚杆锁定机构，包括下前脚杆锁定钩(111)和下前脚杆锁定部(121)，下前脚杆锁定钩(111)的中部铰接设置在上前脚杆(11)下勾形的根部内，下前脚杆锁定钩(111)的一端为与下前脚杆锁定部(121)钩挂配合的钩部(1112)，下前脚杆锁定钩(111)的一端为翘出上前脚杆(11)外的释放部(1111)，下前脚杆锁定钩(111)连接有弹性件从而赋予钩部(1112)靠近下前脚杆锁定部(121)的趋势；当下前脚杆锁定钩(111)的释放部(1111)被折叠的后脚杆(20)压回时，下前脚杆锁定钩(111)的钩部(1112)与下前脚杆锁定部(121)分离，从而下前脚杆(12)可以收折；当后脚杆(20)和下前脚杆(12)展开时，下前脚杆锁定钩(111)的释放部(1111)向外翘出，下前脚杆锁定钩(111)的钩部(1112)与下前脚杆锁定部(121)钩挂配合，从而下前脚杆(12)与上前脚杆(11)锁定固接。A pick-up mechanism for a child cart according to claim 3, wherein said front foot lever locking mechanism comprises a lower front foot locking hook (111) and a lower front foot locking portion (121), and a lower front foot locking portion The middle portion of the hook (111) is hingedly disposed in the root of the lower front foot bar (11), and the end of the lower front leg locking hook (111) is a hook portion (1112) that is hooked to the lower front leg locking portion (121). ), one end of the lower front leg locking hook (111) is a release portion (1111) that is lifted out of the upper front leg (11), and the lower front leg locking hook (111) is connected with an elastic member to give the hook portion (1112) close to the lower portion. The tendency of the front foot lock portion (121); when the release portion (1111) of the lower front foot lock hook (111) is pressed back by the folded rear foot (20), the hook of the lower front foot lock hook (111) (1112) Separated from the lower forefoot lock portion (121) so that the lower front foot lever (12) can be folded; when the rear foot lever (20) and the lower front foot lever (12) are deployed, the lower front foot lock hook (111) is released ( 1111) tilted outward, down The hook portion (1112) of the foot lock hook (111) is hooked with the lower front foot lock portion (121), so that the lower front foot rod (12) is locked and fixed to the upper front foot rod (11).
根据权利要求3所述的一种儿童手推车的收车机构，其特征在于，所述推手杆包括推手杆手把(611)、上推手杆(61)、中推手杆(62)和下推手杆(50)，上推手杆(61)以能够上下伸缩的方式插设在中推手杆(62)中并通过上推手杆锁定机构实现锁定固接或释放伸缩，中推手杆(62)的下端和下推手杆(50)的上端铰接并通过中推手杆锁定机构实现锁定固接或释放收折；前支撑杆(30)的上端与下推手杆(50)的下端铰接，后支撑杆(40)的上端与下推手杆(50)的中部铰接。A pick-up mechanism for a child stroller according to claim 3, wherein the pusher bar includes a pusher handle (611), an up pusher (61), a pusher (62), and a pusher (50), the push-up lever (61) is inserted into the middle push lever (62) in a manner of being able to expand up and down, and is locked or released by the push-up lever locking mechanism, and the lower end of the push-hand lever (62) is The upper end of the pusher lever (50) is hinged and locked or released by the middle push lever locking mechanism; the upper end of the front support bar (30) is hinged to the lower end of the pusher bar (50), and the rear support bar (40) The upper end is hinged to the middle of the pusher lever (50).
根据权利要求5所述的一种儿童手推车的收车机构，其特征在于，所述上推手杆锁定机构包括上推手杆伸缩开关(6111)、上推手杆锁定销(613)、弹片(614)和弹片套(612)，弹片(614)固定在上推手杆(61)***中推手杆(62)的***部，弹片(614)的外翘端固定上推手杆锁定销(613)，上推手杆锁定销(613)伸出上推手杆(61)并与中推手杆(62)上的锁定销孔配合，弹片套(612)套设在弹片(614)外并通过滑动控制弹片(614)的外翘端纳入或翘出，弹片套(612)通过钢线与安装在推手杆手把(611)上的上推手杆伸缩开关(6111)连接。The pick-up mechanism for a child stroller according to claim 5, wherein the push-up lever locking mechanism comprises a push-up lever telescopic switch (6111), a push-up lever lock pin (613), and a spring piece (614). And a shrapnel sleeve (612), the shrapnel (614) is fixed to the insertion portion of the pusher lever (61) inserted into the pusher lever (62), and the outer warping end of the elastic piece (614) is fixed to the pusher lever locking pin (613), and the pusher is pushed up. The lever locking pin (613) extends from the upper push lever (61) and cooperates with the locking pin hole on the middle push lever (62), and the spring sleeve (612) is sleeved outside the elastic piece (614) and controls the elastic piece by sliding (614) The outer warping end is incorporated or lifted, and the shrapnel sleeve (612) is connected to the upper pusher telescopic switch (6111) mounted on the pusher handle (611) by a steel wire.
根据权利要求5所述的一种儿童手推车的收车机构，其特征在于，所述中推手杆锁定机构包括联动件(53)和中推手杆锁定件(54)，联动件(53)滑动设置在下推手杆(50)的中部并与设置在后支撑杆(40)上端的联动部(44)连接，中推手杆锁定件(54)滑动设置在下推手杆(50)上部并与设置在中推手杆(62)下端的锁定孔(622)插接配合，中推手杆锁定件(54)通过钢线与联动件(53)连接，中推手杆锁定件(54)通过弹簧赋予***中推手杆 (62)上的锁定孔(622)的趋势；当后支撑杆(40)相对于下推手杆(50)转动时，联动部(44)带动联动件(53)移动，联动件(53)通过钢线带动中推手杆锁定件(54)与中推手杆(62)上的锁定孔(622)插接锁定或者分离释放。The pick-up mechanism of a child stroller according to claim 5, wherein the middle push lever locking mechanism comprises a linkage (53) and a middle push lever lock (54), and the linkage (53) slides In the middle of the push down lever (50) and connected with the linkage portion (44) provided at the upper end of the rear support rod (40), the middle push lever lock member (54) is slidably disposed on the upper portion of the lower push handle (50) and is placed in the middle pusher The locking hole (622) at the lower end of the rod (62) is mated, the middle push lever locking member (54) is connected to the linkage (53) through the steel wire, and the middle push lever locking member (54) is inserted into the middle push handle by the spring. (62) the tendency of the locking hole (622); when the rear support bar (40) rotates relative to the pusher bar (50), the linkage (44) drives the linkage (53) to move, and the linkage (53) passes The steel wire drives the middle push lever locking member (54) to be locked or released by the locking hole (622) on the middle push lever (62).
根据权利要求5所述的一种儿童手推车的收车机构，其特征在于，所述横杆包括：A pick-up mechanism for a children's trolley according to claim 5, wherein the crossbar comprises:

第一横杆(70)，设置在两侧架的上前脚杆(11)上部之间，第一横杆(70)的两端分别与两侧架的上前脚杆(11)上部延伸出来的横杆安装臂铰接；或者，设置在两侧架的后支撑杆(40)下部之间，第一横杆(70)的两端分别与两侧架的后支撑杆(40)下部延伸出来的横杆安装臂铰接；The first crossbar (70) is disposed between the upper portions of the upper forefoot bars (11) of the two side frames, and the two ends of the first cross bar (70) respectively extend from the upper part of the upper front foot bars (11) of the two side frames The crossbar mounting arm is hinged; or is disposed between the lower portions of the rear support bars (40) of the two side frames, and the two ends of the first cross bar (70) respectively extend from the lower portions of the rear support bars (40) of the two side frames The crossbar mounting arm is hinged;

第二横杆(80)，设置在两侧架的上前脚杆(11)下部之间，第二横杆(80)的两端分别与两侧架的上前脚杆(11)下部延伸出来的横杆安装臂铰接；a second crossbar (80) is disposed between the lower portions of the upper forefoot bars (11) of the two side frames, and the two ends of the second cross bar (80) respectively extend from the lower portions of the upper forefoot bars (11) of the two side frames The crossbar mounting arm is hinged;

第三横杆(25)，设置在两侧架的后脚杆(20)之间，第三横杆(25)的两端分别与两侧架的后脚杆(20)延伸出来的横杆安装臂铰接；The third crossbar (25) is disposed between the rear leg (20) of the two side frames, and the two ends of the third cross bar (25) respectively extend with the cross bar mounting arm of the rear leg (20) of the two side frames Hinged

第四横杆(65)，设置在两侧架的上推手杆(61)之间，第四横杆(65)的两端分别与两侧架的上推手杆(61)延伸出来的横杆安装臂铰接；或者，设置在两侧架的推手杆手把(611)之间，第四横杆(65)的两端分别与推手杆手把(611)延伸出来的横杆安装臂铰接；The fourth crossbar (65) is disposed between the upper pusher bars (61) of the two side frames, and the two ends of the fourth crossbar (65) respectively extend with the crossbars of the pusher bars (61) of the two side frames The mounting arm is hinged; or, is disposed between the pusher handles (611) of the two side frames, and the two ends of the fourth crossbar (65) are respectively hinged with the crossbar mounting arms from which the pusher handle (611) extends;

当两侧架处于展开锁定状态时，第一横杆(70)、第二横杆(80)、第三横杆(25)和第四横杆(65)上的铰接轴分布于不同的平面；当两侧架处于收拢折叠状态时，第一横杆(70)、第二横杆(80)、第三横杆(25)和第四横杆(65)上的铰接轴位于同一轴线上。When the two side frames are in the unfolded locked state, the hinge axes on the first crossbar (70), the second crossbar (80), the third crossbar (25), and the fourth crossbar (65) are distributed on different planes. When the two side frames are in the collapsed state, the hinge axes on the first crossbar (70), the second crossbar (80), the third crossbar (25) and the fourth crossbar (65) are on the same axis .
一种儿童手推车，其特征在于，包括如权利要求1至8中任一项所述的收车机构。A child stroller comprising the car as claimed in any one of claims 1 to 8. mechanism.
如权利要求9所述的一种儿童手推车的收车折叠方法，其特征在于，拉动收车开关(621)，释放收车锁定机构，使后支撑杆(40)与推手杆之间解除锁定，向下推压，将两侧架的由前支撑杆(30)、后支撑杆(40)、前脚杆(10)、推手杆组成的第一四连杆机构收折，使得推手杆向上前脚杆(11)运动并靠拢，同时前支撑杆(30)通过与其固接的第一连杆(31)带动由前脚杆(10)、第一连杆(31)、第二连杆(32)组成的第二四连杆机构收折，从而拉动后脚杆(20)向上前脚杆(11)运动并靠拢；继续推压，推手杆、前后支撑杆组成的第一四连杆机构和后脚杆(20)分别收纳在前脚杆(10)的两侧。 A folding and folding method for a child stroller according to claim 9, wherein the car switch (621) is pulled to release the car lock mechanism, and the rear support bar (40) and the pusher bar are unlocked. Push down to fold the first four-bar linkage consisting of the front support bar (30), the rear support bar (40), the front foot bar (10), and the pusher bar on the side frames, so that the pusher bar is up and the front foot bar (11) moving and close together, while the front support bar (30) is driven by the front link (10), the first link (31), the second link (32) by the first link (31) fixed thereto The second four-bar linkage is folded, thereby pulling the rear foot bar (20) to move forward and close to the front foot bar (11); continuing to push, pushing the first four-link mechanism and the rear foot bar composed of the front and rear support bars (20) ) are respectively stored on both sides of the front foot bar (10).