WO2016015291A1 - 一种车架折叠机构 - Google Patents

一种车架折叠机构 Download PDF

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Publication number
WO2016015291A1
WO2016015291A1 PCT/CN2014/083437 CN2014083437W WO2016015291A1 WO 2016015291 A1 WO2016015291 A1 WO 2016015291A1 CN 2014083437 W CN2014083437 W CN 2014083437W WO 2016015291 A1 WO2016015291 A1 WO 2016015291A1
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WO
WIPO (PCT)
Prior art keywords
sliding
plunger
slot
sliding assembly
folding mechanism
Prior art date
Application number
PCT/CN2014/083437
Other languages
English (en)
French (fr)
Inventor
尹国英
詹映忠
Original Assignee
广州市锦宏机电科技发展有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州市锦宏机电科技发展有限公司 filed Critical 广州市锦宏机电科技发展有限公司
Priority to PCT/CN2014/083437 priority Critical patent/WO2016015291A1/zh
Publication of WO2016015291A1 publication Critical patent/WO2016015291A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K15/00—Collapsible or foldable cycles

Definitions

  • the present invention relates to a frame of a folding bicycle, and in particular to a frame folding mechanism.
  • Background Art For a bicycle such as a bicycle or a moped that can be folded, it is often necessary to fold and store it in a minimum volume, and at the same time, it is required to be easily deployed.
  • the frame is used as a frame for connecting the front wheel of the car, the rear wheel of the car, and the seat bag.
  • the folding of the frame is generally to cut off the crossbar of the car to form two cross beams for folding the frame in half, but this way will The stability of the frame after unfolding is poor, the safety is insufficient, and the folded volume is still not small enough to be stored. Summary of the invention
  • the object of the present invention is to provide a frame folding mechanism, which realizes convenient and rapid folding of the frame, and at the same time, the frame has a small volume after being folded, and the frame has good after being deployed. Stability.
  • a frame folding mechanism includes a frame including a fixed case, a sliding assembly, a front linkage bar, a rear linkage bar, a plunger, a seat bag, a front beam for mounting the front wheel of the vehicle, and a rear seat for mounting the vehicle
  • the rear beam of the wheel the upper end of the front beam is spaced from the upper end of the rear beam and is respectively hinged with the fixed shell
  • the sliding assembly is vertically slidably fitted to the fixed shell, the sliding assembly is located between the upper end of the front beam and the upper end of the rear beam
  • the front linkage rod One end of the rear linkage rod is hinged to the lower end of the sliding assembly, the other end of the front linkage rod is hinged to the front beam, and the other end of the rear linkage rod is hinged to the rear beam, and one end of the plunger is hinged with the upper end of the sliding assembly, and the plunger is The other end is hinged to the seat bag; the upper end of the rear beam has a receiving portion for supporting the plunger,
  • the fixing shell is provided with a limiting member, and one end of the limiting member is elastically connected to the fixed shell, and the sliding assembly is a vertically arranged elongated sliding block, and the sliding block has the insertion
  • the outer side wall of the sliding block is provided with a shallow groove vertically slidably engaged with the other end of the limiting member, and the lower end of the shallow groove is provided with a through hole for the other end of the limiting member to protrude into the card insertion.
  • one end of the limiting member is a connecting portion, and the other end of the limiting member is a limiting portion, one end of the connecting portion is elastically connected with the fixed shell, and the other end of the connecting portion is connected with the limiting portion for driving
  • the limiting portion elastically reciprocates in a direction away from the shallow groove or near the shallow groove.
  • the limiting portion includes a block body and a long leg extending from the inner side of the block body toward the sliding block and a short leg for inserting into the through hole, the long leg and the short leg being spaced apart from each other, the short leg
  • the outer side wall of the sliding block is also provided with a through groove vertically slidably engaged with the long leg, and the long leg passes through the through groove and protrudes into the slot.
  • the end of the long leg extending into the slot is set as a round head.
  • the upper end of the sliding assembly is provided with a rotating column
  • the two ends of the rotating column are rotatably connected with the upper end of the sliding assembly
  • the side of the rotating column further has a guiding groove extending radially, and the two ends of the guiding groove are along the rotating column
  • a protruding post protrudes inwardly from the axial direction
  • a sidewall of the plunger has a first sliding slot, the plunger is inserted into the guiding slot, and the first sliding slot is slidingly engaged with the protruding post.
  • the upper end of the sliding assembly protrudes from two fixing ears, and each fixing ear has a rotating hole, and the hole wall of the rotating hole further extends out of the middle of the rotating hole to a limited position block, and both ends of the rotating column A stopper that is rotatably engaged with the rotary hole is respectively protruded.
  • the limiting block is a quarter piece, and the blocking piece is a half piece.
  • the fixed shell is provided with a limiting groove for slidingly engaging the sliding block
  • the outer side wall of the sliding block is further provided with a second sliding groove
  • the sliding block of the sliding sliding seat is fixedly mounted on the fixed casing.
  • one end of the plunger is used for articulating with the upper end of the sliding assembly, and the other end of the plunger is provided a circumferentially distributed latching tooth, a sleeve extending from a lower end of the seat bag, the inner wall of the sleeve protruding from an elastically spaced apart card, and the other end of the plunger extends into the sleeve and is rotatably engaged with the sleeve
  • the interference fit is matched with the elastic card; the upper surface of the receiving portion is further provided with a cushion.
  • the invention can drive the sliding assembly to vertically slide relative to the fixed shell by the hinged and inserted action of the plunger and the sliding assembly, and can respectively drive the front linkage rod and the rear linkage rod to fold or unfold, thereby driving the front beam.
  • the rear beam is flared outwardly or inwardly, and the plunging rod functions both as a supporting connecting seat when the frame is unfolded, and is accommodated in the slot when the frame is folded, thus pulling up or By pressing down the sliding assembly, the front and rear beams can be easily and quickly folded outward or inward, and then the frame can be unfolded and folded by the secondary expansion or insertion and storage of the plunger. , its folded size is small, easy to store. Since the front and rear beams are hinged to the fixed shell, the triangular structure formed makes the frame more stable and stronger after deployment.
  • FIG. 1 is a schematic view showing the external structure of the frame folding mechanism of the present invention in an unfolded state
  • FIG. 2 is a schematic view showing the hinged and inserting fit of the plunger and the slider of the present invention
  • FIG. 3 is a schematic view showing the internal structure of the frame folding mechanism of the present invention after removing the fixed casing;
  • Figure 4 is a schematic structural view of a slot of the present invention.
  • Figure 5 is a schematic structural view of the limiting member of the present invention.
  • Figure 6 is a schematic structural view of the plunger of the present invention.
  • Figure 7 is a schematic structural view of a sleeve of the present invention.
  • Figure 8 is a schematic view of the plunger inserted into the slot of the present invention.
  • Figure 9 is a schematic view of the frame folding mechanism of the present invention after being folded.
  • a frame folding mechanism as shown in FIGS. 1 to 4 and 8 to 9 includes a frame 100.
  • the frame 100 includes a fixed casing 1, a sliding assembly 200, a front linkage rod 3, a rear linkage rod 4, and a plunger. 5.
  • the sliding assembly 200 is vertically slidably fitted between the upper end of the front beam 7 and the upper end of the rear beam 8, and one end of the front linkage rod 3 and one end of the rear linkage rod 4 are respectively hinged to the lower end of the sliding assembly 200, front The other end of the linkage rod 3 is hinged to the front beam 7, the other end of the rear linkage rod 4 is hinged to the rear beam 8, one end of the plunger 5 is hinged to the upper end of the slide assembly 200, and the other
  • the sliding assembly 200 can be vertically moved relative to the fixed casing 1. By the driving of the front linkage rod 3 and the rear linkage rod 4, the front beam 7 and the rear beam 8 can be opened or folded.
  • the plunger 5 can drive the sliding assembly 200 to perform vertical sliding movement.
  • the plunger 5 can also be supported on the receiving portion 81 of the back beam 8, and under the action of the lever, the sliding assembly 200 is Vertically sliding to the highest position, the plunger 5 is rotated relative to the sliding assembly 200 to support the 7 bracket 81 and 7 is placed under the seat bag 6.
  • the plunger 5 can also be inserted in the frame 100 when folded. Inside slot 21 (as shown in Figures 8-9).
  • the receiving portion 81 can be disposed in a plane, and the upper and lower limits of the sliding assembly 200 can be realized by a frictional frictional relationship with the fixed casing 1, or a limiting device can be added for preventing the front beam 7 and the back beam. 8 open or fold at random, Increase stability.
  • the limiting device used in this example preferably has the following structure: As shown in FIG. 8, the fixing shell 1 is provided with a limiting member 9, one end of the limiting member 9 is elastically connected with the fixed housing 1, and the sliding assembly 200 is vertically disposed.
  • the long sliding block 2 has the slot 21 formed therein, and the outer side wall of the sliding block 2 is provided with a shallow groove 22 vertically slidably engaged with the other end of the limiting member 9, and the shallow groove 22
  • the lower end is provided with a through hole 23 for the other end of the limiting member 9 to extend into the card insertion.
  • the sliding block 2 When the front beam 7 and the rear beam 8 are opened, the sliding block 2 is tilted to the highest position by the lever 5 and the lever 6 of the seat bag 6, and the limiting member 9 is inserted into the through hole 23 to achieve the limit.
  • the shallow groove 22 provides a space for the stopper 9 to slide relative to the slider 2.
  • the limiting member 9 can be any number of more than one, and is set according to the sliding limit of the sliding assembly 200.
  • the limiting member 9 can be disposed on the front and rear sides of the sliding assembly 200.
  • the sliding block 2 can also be formed by splicing two or more block sliding bodies for installation.
  • the fixed casing 1 can also be set to two, which are disposed on the left and right sides of the front beam 7 and the rear beam 8, which can increase the strength and the stability of the folding/unfolding.
  • one end of the limiting member 9 is a connecting portion 91, and the other end of the limiting member 9 is a limiting portion 92.
  • One end of the connecting portion 91 is elastically connected with the fixed casing 1, and the connecting portion 91 is The other end is connected to the limiting portion 92 for driving the limiting portion 92 to elastically reciprocate in a direction away from the shallow groove 22 or near the shallow groove 22.
  • the elastic reciprocating motion will be generated when the sliding assembly 200 is vertically slid.
  • the elastic restriction of the limiting portion 92 to the limiting portion 92 allows the limiting portion 92 to maintain contact with the shallow groove 22 at a time, and also facilitates the locking member 9 automatically snapping into the through hole 23 when the sliding block 2 is moved to the highest point.
  • the front beam 7 and the rear beam 8 are stably maintained in an open state.
  • the limiting portion 92 includes a block body 921 and a long leg 922 extending from the inner side of the block body 921 toward the sliding block 2 and a short leg for inserting into the through hole 23.
  • the long leg 922 and the short leg 923 are spaced apart from each other, the short leg 923 is vertically slidably engaged with the shallow groove 22, and the outer side wall of the sliding block 2 is further provided with a through groove 26 vertically slidably engaged with the long leg 922, and the long leg 922 is worn.
  • the through slot 26 extends into the slot 21.
  • the long leg 922 fastened in the through slot 26 can be opened, and the corresponding strap can be driven to disengage from the through hole 23 to release the limit.
  • the plunger 5 is inserted into the slot 21, so that the front beam 7 and the rear beam 8 can be released from the limit to achieve the folding.
  • the end of the long leg 922 extending into the slot 21 is set as a round head, and the vertical movement of the plunger 5 can more smoothly move the limiting member 9 to move laterally so that the short leg 923 is disengaged from the through hole 23, preventing the card. dead.
  • the slot 21 can be inserted.
  • the upper end of the sliding assembly 200 is provided with a rotating column 10, and the two ends of the rotating column 10 and the upper end of the sliding assembly 200 are rotatable.
  • the side of the rotating column 10 is also radially penetrated by a guiding slot 101.
  • the two end walls of the guiding slot 101 project inwardly along the axial direction of the rotating column 10 with a stud 102, and the side wall of the plunger 5 is opened first.
  • the sliding slot 51 is inserted into the guiding slot 101, and the first sliding slot 51 is slidably engaged with the protruding post 102.
  • the shape of the guide groove 101 and the insertion rod 5 can be set to have a barb shape to prevent the insertion rod 5 from coming out of the guide groove 101, which is advantageous for ensuring the safety of the seat bag 6 person.
  • the rotation of the plunger 5 can drive the rotating column 10 to rotate, so that the guiding slot 101 is opposite to the slot 21, and the plunger 5 can be inserted into the slot 21 through the guiding slot 101.
  • the upper end of the sliding assembly 200 has two fixing ears 24, and each of the fixing ears 24 has a rotating hole 241.
  • the hole wall of the rotating hole 241 further extends from the middle of the rotating hole 241 to the limiting block 242, and two of the rotating column 10
  • a stopper 103 that is rotatably engaged with the rotation hole 241 is respectively protruded from the end.
  • the mutual limitation of the limiting block 242 and the stopping block 103 can limit the rotation angle of the rotating column 10, and prevent the insertion rod 5 from swinging at random to reduce the stability of the seat bag 6 manned.
  • the limiting block 242 is a quarter-piece wafer
  • the blocking block 103 is a half-piece wafer
  • the rotating column 10 can be rotated within a range of 90°
  • the plunger 5 will also be in the horizontal and numerical directions. Get the limit.
  • the fixing shell 1 is provided with a limiting slot 11 for slidingly engaging the sliding block 2, and the outer side wall of the sliding block 2 is further provided with a second sliding slot. 25 .
  • the fixed shell 1 is fixedly mounted with a sliding column 12 slidably engaged with the second sliding groove 25 .
  • One end of the plunger 5 is used for articulating with the upper end of the sliding assembly 200, as shown in Figures 6-7, of the plunger 5
  • the other end is provided with a circumferentially distributed latching tooth 52.
  • the lower end of the seat bag 6 protrudes from a sleeve 61.
  • the inner wall of the sleeve 61 protrudes with an equally spaced elastic latching 62.
  • the elastic latching 62 is elongated.
  • the other end of the plunger 5 extends into the sleeve 61 and is rotatably engaged with the sleeve 61.
  • the latch 52 cooperates with the elastic latch 62.
  • the engagement of the latch 52 and the elastic latch 62 facilitates the seat 6 relative to the seat 6
  • the angle of the plunger 5 is finely adjusted, and the adjustment precision depends on the number of the latches 52. Since the latches 52 and the elastic latches 62 are interference-fitted, the seat bag 6 can make the seat bag 6 at an angle within a certain external force range. The bottom remains unrotated.
  • the upper surface of the receiving portion 81 is further provided with a cushion 82. When the cushion 82 supports the plunger 5, the cushion can be replaced, thereby reducing the vibration of the seat bag 6 and improving the comfort.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

一种车架折叠机构，包括车架（100），该车架（100）包括固定壳（1）、滑动组件（200）、前联动杆（3）、后联动杆（4）、插杆（5）、座包（6）、前梁（7）和后梁（8），前梁（7）的上端与后梁（8）的上端相间隔并分别与固定壳（1）铰接，滑动组件（200）竖向滑动配合于固定壳（1），该滑动组件（200）位于前梁（7）的上端和后梁（8）的上端之间，前联动杆（3）的一端、后联动杆（3）的一端分别铰接至滑动组件（200）的下端，前联动杆（3）的另一端与前梁（7）铰接，后联动杆（4）的另一端与后梁（8）铰接，插杆（5）的一端与滑动组件（200）的上端铰接，插杆（5）的另一端与座包（6）铰接；后梁（8）的上端具有用于支撑插杆（5）的承托部（81），滑动组件（200）具有供插杆（5）插入的插槽（21）。该机构可实现方便、快速地折叠车架，同时使车架在折叠后具有较小的体积，使车架在展开后又具有良好的稳定性。

Description

一种车架折叠机构 技术领域 本发明涉及折叠车的车架， 具体涉及一种车架折叠机构。 背景技术 对于可以折叠的自行车、 助力车等车辆， 常需要以最小体积地将其方便折 叠收纳， 同时又需要可以方便地展开。 车架作为连接车前轮、 车后轮、 座包的 架体， 目前对车架的折叠方式则普遍为将车横梁截断， 形成两截横梁， 用于将 车架对折， 但是这种方式将导致展开后的车架稳定性欠佳， 安全性不足， 同时 其折叠后的体积仍不够小， 不便于收纳。 发明内容
为了克服现有技术的不足， 本发明的目的在于提供一种车架折叠机构， 实 现方便、 快速地折叠车架， 同时车架在折叠后具有较小的体积， 车架在展开后 又具有良好的稳定性。
本发明的目的釆用如下技术方案实现：
一种车架折叠机构， 包括车架， 该车架包括固定壳、 滑动组件、 前联动杆、 后联动杆、 插杆、 座包、 用于安装车前轮的前梁和用于安装车后轮的后梁， 前 梁的上端与后梁的上端相间隔并分别与固定壳铰接， 滑动组件竖向滑动配合于 固定壳， 该滑动组件位于前梁的上端和后梁的上端之间， 前联动杆的一端、 后 联动杆的一端分别铰接至滑动组件的下端， 前联动杆的另一端与前梁铰接， 后 联动杆的另一端与后梁铰接， 插杆的一端与滑动组件的上端铰接， 插杆的另一 端与座包铰接； 后梁的上端具有用于支撑插杆的承托部， 滑动组件具有供插杆 插入的插槽。 优选地， 所述固定壳内设有限位件， 限位件的一端与固定壳弹性相连， 所 述滑动组件为一竖向设置的长条形的滑动块， 该滑动块内开有所述插槽， 滑动 块的外侧壁设有与限位件的另一端竖向滑动配合的浅槽， 浅槽的下端开有供限 位件的另一端伸入卡插的通孔。
优选地， 所述限位件的一端为连接部， 限位件的另一端为限位部， 连接部 的一端与固定壳沿弹性相连， 连接部的另一端与限位部相连， 用于带动限位部 沿远离浅槽或靠近浅槽的方向弹性往复运动。
优选地， 所述限位部包括块体及由块体的内侧向滑动块伸出的长脚和用于 插装在所述通孔内的短脚， 长脚和短脚相互间隔， 短脚与所述浅槽竖向滑动配 合， 滑动块的外侧壁还开有与长脚竖向滑动配合的通槽， 长脚穿过通槽并伸入 插槽内。
优选地， 所述长脚伸入插槽的端部设为圓头。
优选地， 所述滑动组件的上端设有一转动柱， 转动柱的两端与滑动组件的 上端可转动地连接， 转动柱的侧面还径向贯穿有一导槽， 导槽的两端壁沿转动 柱的轴向向内伸出有凸柱， 所述插杆的侧壁开有第一滑动槽， 插杆插装于导槽 内， 且第一滑动槽与凸柱滑动配合。
优选地， 所述滑动组件的上端伸出有两个固定耳， 每个固定耳中开有转孔， 转孔的孔壁还向转孔中部延伸出有限位块， 所述转动柱的两端分别伸出有与转 孔转动配合的挡块。
优选地， 所述限位块为四分之一圓片， 所述挡块为二分之一圓片。
优选地， 所述固定壳上开有供滑动块滑动配合的限位槽， 滑动块的外侧壁 还设有第二滑动槽， 固定壳上固定安装有与第二滑动槽滑动配合的滑柱。
优选地， 所述插杆的一端用于与滑动组件的上端铰接， 插杆的另一端设有 呈圓周分布的卡齿， 座包的下端伸出有套管， 套管的内壁凸出有等间隔分布的 弹性卡挡， 插杆的另一端伸入套管内并与套管转动配合， 卡齿与弹性卡挡过盈 配合； 所述承托部的上表面还垫设有緩冲垫。
相比现有技术， 本发明的有益效果在于：
本发明通过插杆与滑动组件的铰接和插装作用， 可带动滑动组件相对于固 定壳竖向滑移， 则可相应带动前联动杆和后联动杆做折叠或展开的动作， 进而 带动前梁和后梁向外张开或向内收合， 而且插杆既起到车架展开时的支撑连接 座包的作用， 又可在车架折叠时被容纳在插槽中， 因此， 向上提拉或向下压下 滑动组件就可以很方便、 快速地实现前梁和后梁向外张开或向内收合， 再通过 插杆的二次展开或插装收纳就可对应实现车架的展开和折叠， 其折叠后的体积 小， 便于收纳。 又由于前梁和后梁与固定壳铰接， 因此所形成的三角形的结构 可使车架在展开后更加稳定， 强度更高。
下面结合附图和具体实施方式对本发明作进一步详细说明。
附图说明
图 1为本发明车架折叠机构处于展开状态时的外部结构示意图；
图 2为本发明插杆与滑块铰接及插装配合的示意图；
图 3为本发明车架折叠机构去除固定壳后的内部结构示意图；
图 4为本发明插槽的结构示意图；
图 5为本发明限位件的结构示意图；
图 6为本发明插杆的结构示意图；
图 7为本发明套管的结构示意图；
图 8为本发明插杆插入插槽后的示意图；
图 9为本发明车架折叠机构折叠后的示意图。
图中： 100、 车架； 1、 固定壳； 11、 限位槽； 12、 滑柱； 200、 滑动组件； 2、 滑动块； 21、 插槽； 22、 浅槽； 23、 通孔； 24、 固定耳； 241、 转孔； 242、 限位块； 25、 第二滑动槽； 26、 通槽； 3、 前联动杆； 4、 后联动杆； 5、 插杆； 51、 第一滑动槽； 52、 卡齿； 6、 座包； 61、 套管； 62、 弹性卡挡； 7、 前梁； 8、 后梁； 81、 承托部； 82、 緩冲垫； 9、 限位件； 91、 连接部； 92、 限位部； 921、 块体； 922、 长脚； 923、 短脚； 10、 转动柱； 101、 导槽； 102、 凸柱； 103、 挡 块。
具体实施方式
如图 1~4、 图 8~9所示的一种车架折叠机构， 包括车架 100 , 该车架 100包 括固定壳 1、 滑动组件 200、 前联动杆 3、 后联动杆 4、 插杆 5、 座包 6、 用于安 装车前轮的前梁 7和用于安装车后轮的后梁 8,前梁 7的上端与后梁 8的上端相 间隔并分别与固定壳 1铰接， 滑动组件 200竖向滑动配合于固定壳 1 , 该滑动组 件 200位于前梁 7的上端和后梁 8的上端之间， 前联动杆 3的一端、后联动杆 4 的一端分别铰接至滑动组件 200的下端， 前联动杆 3的另一端与前梁 7铰接， 后联动杆 4的另一端与后梁 8铰接， 插杆 5的一端与滑动组件 200的上端铰接， 插杆 5的另一端与座包 6铰接；后梁 8的上端具有用于支撑插杆 5的 7 托部 81 , 滑动组件 200具有供插杆 5插入的插槽 21。
滑动组件 200可相对于固定壳 1竖向地移动， 通过前联动杆 3、 后联动杆 4 的带动， 将使前梁 7和后梁 8实现张开或收合动作。 其中， 插杆 5可带动滑动 组件 200做竖向的滑移动作， 如图 2所示， 插杆 5还可支撑在后梁 8的承托部 81上， 在杠杆作用下， 使滑动组件 200被竖向滑移至最高位置， 此时插杆 5相 对于滑动组件 200转动至支撑于 7 托部 81上并 7 托于座包 6下， 插杆 5也可在 车架 100折叠时插装在插槽 21内 （如图 8~9所示）。 其中， 该承托部 81可设置 成一平面， 对滑动组件 200的上下限位， 可以采用与固定壳 1 的紧固摩擦配合 关系来实现， 或者增设限位装置， 用于防止前梁 7和后梁 8随意张开或收合， 增强稳定性。
本例釆用的限位装置优选为以下结构： 如图 8所示， 固定壳 1 内设有限位 件 9, 限位件 9的一端与固定壳 1弹性相连， 滑动组件 200为一竖向设置的长条 形的滑动块 2 , 该滑动块 2内开有上述插槽 21 , 滑动块 2的外侧壁设有与限位 件 9的另一端竖向滑动配合的浅槽 22,浅槽 22的下端开有供限位件 9的另一端 伸入卡插的通孔 23。 当前梁 7和后梁 8张开时， 滑动块 2被插杆 5、 座包 6的 杠杆作用翘至最高位， 同时以限位件 9来插装在通孔 23内实现限位。 而浅槽 22 则提供了限位件 9相对于滑动块 2滑移的空间。 限位件 9可为一个以上的任意 数量， 根据对滑动组件 200的滑移限位需要来设置， 限位件 9可分设于滑动组 件 200的前后两侧。 滑动块 2也可由两个或两个以上的块状滑动体拼接而成， 以便于安装。 固定壳 1也可以设为两个， 分设于前梁 7、 后梁 8的左右两侧， 可 增加强度和折叠 /展开的稳定性。
具体地， 如图 5所示， 限位件 9的一端为连接部 91 , 限位件 9的另一端为 限位部 92 , 连接部 91的一端与固定壳 1沿弹性相连， 连接部 91的另一端与限 位部 92相连， 用于带动限位部 92沿远离浅槽 22或靠近浅槽 22的方向弹性往 复运动， 该弹性往复运动将在滑动组件 200做竖向滑移时产生。 连接部 91对限 位部 92的弹性限制， 可使限位部 92时刻保持与浅槽 22的接触， 也利于在滑动 块 2移至最高点时， 限位件 9 自动卡入通孔 23 , 使前梁 7和后梁 8稳定保持张 开状态。
更具体地， 如图 5所示， 限位部 92包括块体 921及由块体 921的内侧向滑 动块 2伸出的长脚 922和用于插装在所述通孔 23内的短脚 923 , 长脚 922和短 脚 923相互间隔， 短脚 923与浅槽 22竖向滑动配合， 滑动块 2的外侧壁还开有 与长脚 922竖向滑动配合的通槽 26, 长脚 922穿过通槽 26并伸入插槽 21内。 当插杆 5插入插槽 21时， 可撑开扣紧在通槽 26内的长脚 922 ,对应连带带动短 脚 923从通孔 23中脱离， 以解除限位。 则车架 100需要折叠时， 插杆 5插入插 槽 21中，就可以带动前梁 7和后梁 8解除限位固定而实现收合。本例将长脚 922 伸入插槽 21的端部设为圓头， 则插杆 5的竖向移动可以更顺畅地带动限位件 9 横向移动从而使短脚 923脱离通孔 23 , 防止卡死。
为便于插杆 5与滑动组件 200铰接， 同时又可以插入插槽 21 ,如图 3所示， 滑动组件 200的上端设有一转动柱 10,转动柱 10的两端与滑动组件 200的上端 可转动地连接， 转动柱 10的侧面还径向贯穿有一导槽 101 , 导槽 101的两端壁 沿转动柱 10的轴向向内伸出有凸柱 102 , 插杆 5的侧壁开有第一滑动槽 51 , 插 杆 5插装于导槽 101 内， 且第一滑动槽 51与凸柱 102滑动配合。 导槽 101、 插 杆 5的形状可设置成有倒钩的形状， 以防止插杆 5从导槽 101 中脱出， 利于保 证座包 6载人的安全性。车架 100折叠时，插杆 5的转动可带动转动柱 10转动， 使导槽 101与插槽 21相对， 则插杆 5可穿过导槽 101而插入插槽 21收纳。
滑动组件 200的上端伸出有两个固定耳 24 ,每个固定耳 24中开有转孔 241 , 转孔 241的孔壁还向转孔 241中部延伸出有限位块 242, 转动柱 10的两端分别 伸出有与转孔 241转动配合的挡块 103。限位块 242和挡块 103的相互限位配合， 可实现对转动柱 10转动角度进行限位， 防止插杆 5随意摆动而降低座包 6载人 的稳定性。 具体地， 限位块 242为四分之一圓片， 挡块 103为二分之一圓片， 则转动柱 10可在 90° 的范围内转动 ,插杆 5也将在水平和数值方向上得到限位。
为对滑动块 2的竖向滑动进行导向， 以增强滑动的稳定性， 固定壳 1上开 有供滑动块 2滑动配合的限位槽 11 , 滑动块 2的外侧壁还设有第二滑动槽 25 , 固定壳 1上固定安装有与第二滑动槽 25滑动配合的滑柱 12。
插杆 5的一端用于与滑动组件 200的上端铰接， 如图 6~7所示， 插杆 5的 另一端设有呈圓周分布的卡齿 52 , 座包 6的下端伸出有套管 61 , 套管 61的内 壁凸出有等间隔分布的弹性卡挡 62 , 该弹性卡挡 62呈长条状， 插杆 5的另一端 伸入套管 61 内并与套管 61转动配合， 卡齿 52与弹性卡挡 62过盈配合； 卡齿 52和弹性卡挡 62的配合， 利于座包 6相对于插杆 5的角度微调调节， 调节精度 取决于卡齿 52的数量， 由于卡齿 52与弹性卡挡 62过盈配合， 都可使座包 6在 一定外力范围内使座包 6在某一角度下保持不被转动。 承托部 81的上表面还垫 设有緩冲垫 82 , 则緩冲垫 82承托插杆 5时可其换成作用， 进而可降低座包 6的 震动， 提升舒适性。
上述实施方式仅为本发明的优选实施方式， 不能以此来限定本发明保护的 范围， 本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换 均属于本发明所要求保护的范围。

Claims

权 利 要 求 书 8
1、 一种车架折叠机构， 包括车架， 其特征在于： 该车架包括固定壳、 滑动 组件、 前联动杆、 后联动杆、 插杆、 座包、 用于安装车前轮的前梁和用于安装 车后轮的后梁， 前梁的上端与后梁的上端相间隔并分别与固定壳铰接， 滑动组 件竖向滑动配合于固定壳， 该滑动组件位于前梁的上端和后梁的上端之间， 前 联动杆的一端、 后联动杆的一端分别铰接至滑动组件的下端， 前联动杆的另一 端与前梁铰接， 后联动杆的另一端与后梁铰接， 插杆的一端与滑动组件的上端 铰接， 插杆的另一端与座包铰接； 后梁的上端具有用于支撑插杆的承托部， 滑 动组件具有供插杆插入的插槽。
2、 根据权利要求 1所述的车架折叠机构， 其特征在于： 所述固定壳内设有 限位件， 限位件的一端与固定壳弹性相连， 所述滑动组件为一竖向设置的长条 形的滑动块， 该滑动块内开有所述插槽， 滑动块的外侧壁设有与限位件的另一 端竖向滑动配合的浅槽， 浅槽的下端开有供限位件的另一端伸入卡插的通孔。
3、 根据权利要求 2所述的车架折叠机构， 其特征在于： 所述限位件的一端 为连接部， 限位件的另一端为限位部， 连接部的一端与固定壳沿弹性相连， 连 接部的另一端与限位部相连， 用于带动限位部沿远离浅槽或靠近浅槽的方向弹 性往复运动。
4、 根据权利要求 3所述的车架折叠机构， 其特征在于： 所述限位部包括块 体及由块体的内侧向滑动块伸出的长脚和用于插装在所述通孔内的短脚， 长脚 和短脚相互间隔， 短脚与所述浅槽竖向滑动配合， 滑动块的外侧壁还开有与长 脚竖向滑动配合的通槽， 长脚穿过通槽并伸入插槽内。
5、 根据权利要求 4所述的车架折叠机构， 其特征在于： 所述长脚伸入插槽 的端部设为圓头。
6、 根据权利要求 1~5任一项所述的车架折叠机构， 其特征在于： 所述滑动 组件的上端设有一转动柱， 转动柱的两端与滑动组件的上端可转动地连接， 转 动柱的侧面还径向贯穿有一导槽， 导槽的两端壁沿转动柱的轴向向内伸出有凸 柱， 所述插杆的侧壁开有第一滑动槽， 插杆插装于导槽内， 且第一滑动槽与凸 柱滑动配合。
7、 根据权利要求 6所述的车架折叠机构， 其特征在于： 所述滑动组件的上 端伸出有两个固定耳， 每个固定耳中开有转孔， 转孔的孔壁还向转孔中部延伸 出有限位块， 所述转动柱的两端分别伸出有与转孔转动配合的挡块。
8、 根据权利要求 7所述的车架折叠机构， 其特征在于： 所述限位块为四分 之一圓片， 所述挡块为二分之一圓片。
9、 根据权利要求 2~5任一项所述的车架折叠机构， 其特征在于： 所述固定 壳上开有供滑动块滑动配合的限位槽， 滑动块的外侧壁还设有第二滑动槽， 固 定壳上固定安装有与第二滑动槽滑动配合的滑柱。
10、 根据权利要求 1~5任一项所述的车架折叠机构， 其特征在于： 所述插 杆的一端用于与滑动组件的上端铰接， 插杆的另一端设有呈圓周分布的卡齿， 座包的下端伸出有套管， 套管的内壁凸出有等间隔分布的弹性卡挡， 插杆的另 一端伸入套管内并与套管转动配合， 卡齿与弹性卡挡过盈配合； 所述承托部的 上表面还垫设有緩冲垫。
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