WO2020156557A1 - Foldable electric bicycle - Google Patents

Abstract

A foldable electric bicycle, comprising a front fork, a pedal plate, and a saddle support. The upper portion of the saddle support is of a hollow structure. The saddle support can rotate around the back end of the pedal plate, and the front fork can rotate around the front end of the pedal plate. When the saddle support rotates frontward to abut against the pedal plate, the front fork is rotated backwards to be contained in the hollow portion of the saddle support and clamps the saddle support. The electric bicycle is easy in folding operation, high in folding efficiency, and convenient to be carried, and storage space can be greatly reduced.

Description

折叠电动车Folding electric car 技术领域Technical field

本发明涉及一种电动车。更具体地说，本发明涉及一种折叠电动车，属于便携式交通工具技术领域。The invention relates to an electric vehicle. More specifically, the present invention relates to a folding electric vehicle, which belongs to the technical field of portable vehicles.

背景技术Background technique

电动车，即电力驱动车，其按轮胎个数及结构类型可分为：电动自行车、电动摩托车、电动独轮车、电动四轮车、电动三轮车、电动滑板车等，中国是电动自行车第一大国，电动自行车为人们出行提供了极大的便利，但因其存储空间占用比较大，主要消费市场为小城镇和农村，在大城市的使用存在一定的局限性，于是近年开始涌现出大量的小型折叠电动车，也包括一些电动滑板车、平衡车等小型交通工具，轮径做的越来越小，虽然便携性提高了，但舒适性和安全性大幅降低，使用体验并不理想。因此，如何使电动自行车的舒适性和安全性在达到或接近全尺寸电动自行车标准的前提下，大幅提高其便携性是大力推广电动自行车亟需解决的问题。Electric vehicles, namely electric-powered vehicles, can be divided into electric bicycles, electric motorcycles, electric unicycles, electric four-wheelers, electric tricycles, electric scooters, etc. according to the number of tires and structure types. China is the largest country for electric bicycles Electric bicycles provide great convenience for people’s travel, but because of their large storage space, the main consumer markets are small towns and rural areas. There are certain limitations in their use in large cities, so a large number of small-sized bicycles have emerged in recent years. Folding electric vehicles, including some small vehicles such as electric scooters and balance vehicles, have smaller and smaller wheel diameters. Although portability has improved, the comfort and safety are greatly reduced, and the user experience is not ideal. Therefore, how to make the comfort and safety of electric bicycles reach or approach the standard of full-size electric bicycles, and greatly improve its portability is an urgent problem to be solved in the promotion of electric bicycles.

发明内容Summary of the invention

本发明的一个目的是提供一种折叠电动车，其能快速折叠车座，操作简单，折叠效率高，便于携带，减少收纳空间。An object of the present invention is to provide a folding electric vehicle, which can quickly fold the seat, has simple operation, high folding efficiency, is convenient to carry, and reduces storage space.

为了实现根据本发明的这些目的和其它优点，提供了一种折叠电动车，包括前叉、脚踏板和车座支架，车座支架上部为中空结构，车座支架可绕脚踏板后端旋转，前叉可绕脚踏板前端旋转，当车座支架向前旋转至与脚踏板抵紧时，前叉向后旋转容纳在车座支架的中空部分且卡紧车座支架。In order to achieve these objectives and other advantages according to the present invention, a folding electric vehicle is provided, which includes a front fork, a pedal and a seat bracket. The upper part of the seat bracket is a hollow structure, and the seat bracket can wrap around the rear end of the pedal. When the front fork rotates, the front fork can rotate around the front end of the pedal. When the seat bracket rotates forward to abut against the pedal, the front fork rotates backward and is accommodated in the hollow part of the seat bracket and clamps the seat bracket.

优选的是，所述的折叠电动车包括后叉折叠分总成，其包括：Preferably, the folding electric vehicle includes a rear fork folding sub-assembly, which includes:

一对后叉折叠杆，一对后叉折叠杆对称设置在脚踏板两侧，一对后叉折 叠杆的上部与车座支架固接，后叉折叠杆的下部具有第一延伸面，第一延伸面的径向截面为弓形，一对第一延伸面通过后叉折叠轴与脚踏板后端可旋转连接，后叉折叠杆上设有后叉折叠限位挡圈，后叉折叠限位挡圈高于第一延伸面，第一延伸面的弧面上设有径向长度自上而下依次递增的第一锥面，第一锥面高于所述后叉折叠轴；A pair of rear fork folding rods, a pair of rear fork folding rods are symmetrically arranged on both sides of the foot pedal, the upper part of the pair of rear fork folding rods are fixedly connected with the seat bracket, and the lower part of the rear fork folding rod has a first extension surface. The radial cross section of an extension surface is arcuate. A pair of first extension surfaces are rotatably connected with the rear end of the foot pedal through the rear fork folding shaft. The rear fork folding lever is provided with a rear fork folding limit stop ring, and the rear fork folding limit The retaining ring is higher than the first extension surface, the arc surface of the first extension surface is provided with a first tapered surface whose radial length increases sequentially from top to bottom, and the first tapered surface is higher than the rear fork folding shaft;

一对后叉折叠锁杆，一对后叉折叠锁杆均套设在所述后叉折叠轴上且均与脚踏板后端固接，后叉折叠锁杆上部具有第二延伸面，第二延伸面与第一延伸面的接触面为平面，第二延伸面的弧面上设有径向长度自上而下依次递增的第二锥面，第二锥面高于所述后叉折叠轴；A pair of rear fork folding lock rods, a pair of rear fork folding lock rods are sleeved on the rear fork folding shaft and both fixed to the rear end of the foot pedal, the upper part of the rear fork folding lock rod has a second extension surface, The contact surface between the two extension surfaces and the first extension surface is a plane, the arc surface of the second extension surface is provided with a second tapered surface whose radial length increases sequentially from top to bottom, and the second tapered surface is higher than the rear fork folded axis;

一对后叉折叠套管和套管连杆，一对后叉折叠套管分别对应套设在一对后叉折叠杆上，且后叉折叠套管套设后叉折叠限位挡圈，后叉折叠套管内壁沿径向设有限位块，限位块低于后叉折叠限位挡圈，所述套管连杆连接一对后叉折叠套管，形成用于提拉一对后叉折叠套管的持握部；A pair of rear fork folding sleeves and sleeve connecting rods, a pair of rear fork folding sleeves are correspondingly sleeved on a pair of rear fork folding rods, and the rear fork folding sleeves are sleeved with rear fork folding limit retaining rings. The inner wall of the fork folding sleeve is provided with a limit block along the radial direction. The limit block is lower than the rear fork folding limit stop ring. The sleeve connecting rod connects a pair of rear fork folding sleeves to form a pair of rear forks. Folding the grip part of the sleeve;

一对套管复位弹簧，一对套管复位弹簧分别对应套设在一对后叉折叠杆上，套管复位弹簧的下端与限位块抵接、上端与后叉折叠限位挡圈抵接；A pair of sleeve return springs and a pair of sleeve return springs are correspondingly sleeved on a pair of rear fork folding rods. The lower end of the sleeve return spring abuts with the limit block, and the upper end abuts with the rear fork folding limit ring ；

其中，当套管复位弹簧的弹性力使后叉折叠套管套设在第一延伸面和第二延伸面形成的圆柱结构外部时，第一锥面和第二锥面配合形成限制后叉折叠套管向下运动的阻碍，当套管复位弹簧被压缩至后叉折叠套管脱离第二延伸面时，后叉折叠杆可绕所述后叉折叠轴旋转。Wherein, when the elastic force of the sleeve return spring causes the rear fork folding sleeve to be sleeved outside the cylindrical structure formed by the first extension surface and the second extension surface, the first cone surface and the second cone surface cooperate to restrict the folding of the rear fork The downward movement of the sleeve is obstructed. When the sleeve return spring is compressed until the rear fork folding sleeve is separated from the second extension surface, the rear fork folding rod can rotate around the rear fork folding shaft.

优选的是，所述的折叠电动车还包括前叉折叠分总成，其包括：Preferably, the folding electric vehicle further includes a front fork folding sub-assembly, which includes:

前叉折叠连杆，其倾斜设置在前叉和脚踏板前端之间，所述前叉折叠连杆的上端与前叉固接、下端通过前叉折叠轴与脚踏板前端可旋转连接，所述前叉折叠连杆朝向脚踏板的侧面下部开设有滑槽；The front fork folding link is arranged obliquely between the front fork and the front end of the foot pedal, the upper end of the front fork folding link is fixed to the front fork, and the lower end is rotatably connected with the front end of the foot pedal through the front fork folding shaft, The front fork folding link is provided with a sliding groove facing the lower part of the side of the foot pedal;

前叉折叠滑块和前叉折叠限位销，所述前叉折叠滑块可滑动地设置在所述滑槽内，所述前叉折叠限位销穿设在所述前叉折叠滑块上且两端均延伸到 所述前叉折叠滑块外部，所述前叉折叠限位销垂直所述前叉折叠滑块的滑动方向；The front fork folding slider and the front fork folding limit pin, the front fork folding slider is slidably arranged in the chute, and the front fork folding limit pin passes through the front fork folding slider And both ends extend to the outside of the front fork folding slider, and the front fork folding limit pin is perpendicular to the sliding direction of the front fork folding slider;

滑块复位弹簧，其上端与所述前叉折叠连杆固接、下端与所述前叉折叠滑块固接，所述滑块复位弹簧的弹性力可驱动所述前叉折叠滑块在所述滑槽内滑动；Slider return spring, the upper end of which is fixedly connected with the front fork folding link, and the lower end is fixedly connected with the front fork folding slider. The elastic force of the slider return spring can drive the front fork folding slider at the Sliding in the chute;

一对前叉折叠限位板，一对前叉折叠限位板对称设置在所述前叉折叠连杆下端的两侧，一对前叉折叠限位板均套设在所述前叉折叠轴上且均与脚踏板前端固接，前叉折叠限位板的顶部为高度沿靠近脚踏板的方向依次递减的弧形结构，且弧边边缘上开设有上限位缺口和下限位缺口，所述前叉折叠限位销的两端可卡设在一对上限位缺口或一对下限位缺口上；A pair of front fork folding limit plates, a pair of front fork folding limit plates are symmetrically arranged on both sides of the lower end of the front fork folding link, a pair of front fork folding limit plates are sleeved on the front fork folding shaft The upper part is fixedly connected to the front end of the pedal. The top of the front fork folding limit plate is an arc structure whose height decreases in the direction close to the pedal, and the upper limit gap and the lower limit gap are provided on the edge of the arc. The two ends of the front fork folding limit pin can be clamped on a pair of upper limit notches or a pair of lower limit notches;

其中，当所述滑块复位弹簧的弹性力使所述前叉折叠限位销卡设在一对上限位缺口上时，前叉处于展开状态，当所述滑块复位弹簧的弹性力使所述前叉折叠限位销卡设在一对下限位缺口上时，前叉处于折叠状态。Wherein, when the elastic force of the slider return spring causes the front fork folding limit pin to be clamped on a pair of upper limit notches, the front fork is in an unfolded state, and when the elastic force of the slider return spring causes the When the front fork folding limit pin is clamped on a pair of lower limit notches, the front fork is in a folded state.

优选的是，所述滑槽的上部固设有凸块，所述滑块复位弹簧的上端与所述凸块固接，所述前叉折叠滑块上固接有圆柱状拉耳，拉耳中部开设有圆柱状通孔。Preferably, the upper part of the sliding groove is fixedly provided with a convex block, the upper end of the slider return spring is fixedly connected to the convex block, and the front fork folding slider is fixedly fixed with a cylindrical pull ear, and the pull ear A cylindrical through hole is opened in the middle.

优选的是，上限位缺口高于脚踏板，上限位缺口的开口方向朝上，下限位缺口低于脚踏板，下限位缺口的开口方向朝向折叠电动车的后轮且与脚踏板平行，上限位缺口和下限位缺口均呈夹角为45°的类V形结构。Preferably, the upper limit gap is higher than the pedal, the opening direction of the upper limit gap is upward, the lower limit gap is lower than the pedal, and the opening direction of the lower limit gap faces the rear wheel of the folding electric vehicle and is parallel to the pedal , The upper limit gap and the lower limit gap both have a V-shaped structure with an angle of 45°.

优选的是，每个后叉折叠套管内限位块的数量为2个，2个限位块关于后叉折叠套管的轴线对称。Preferably, the number of limit blocks in each rear fork folding sleeve is two, and the two limit blocks are symmetrical with respect to the axis of the rear fork folding sleeve.

优选的是，所述套管连杆为U形结构，U形两端分别与一对后叉折叠套管的侧壁对应固接。Preferably, the sleeve connecting rod has a U-shaped structure, and both ends of the U-shaped structure are respectively fixedly fixed to the side walls of a pair of rear fork folding sleeves.

优选的是，所述的折叠电动车还包括车把折叠分总成，其包括：Preferably, the folding electric vehicle further includes a handlebar folding sub-assembly, which includes:

车把折叠轴，其水平固设在前叉上端，且与折叠电动车的行进方向平行，所述车把折叠轴为两端敞口的圆筒状，所述车把折叠轴的后端设有盖板，所述车把折叠轴靠近前端的外壁上沿其轴向开设有上凹槽和下凹槽；The handlebar folding shaft is horizontally fixed on the upper end of the front fork and parallel to the direction of travel of the folding electric vehicle. The handlebar folding shaft is a cylindrical shape with open ends. The rear end of the handlebar folding shaft is provided With a cover, the outer wall of the handlebar folding shaft near the front end is provided with an upper groove and a lower groove along its axial direction;

一对车把，车把的上端形成持握部、下端固接有车把折叠固定轴套，车把折叠固定轴套为圆环形，且一对车把折叠固定轴套拼接形成圆环形，一对车把折叠固定轴套一前一后地套设在所述车把折叠轴上，车把折叠固定轴套内壁对应所述上凹槽处设有第一限位缺口、对应所述下凹槽处设有第二限位缺口，第一限位缺口和第二限位缺口均位于一对车把折叠固定轴套接触面的边缘处，且一对第一限位缺口配合形成半球形第一空腔、一对第二限位缺口配合形成半球形第二空腔；A pair of handlebars, the upper end of the handlebar forms a grip, the lower end is fixedly connected with a handlebar folding fixed bushing, the handlebar folding fixing bushing is in a ring shape, and a pair of handlebar folding fixing bushings are spliced to form a ring shape , A pair of handlebar folding fixed shaft sleeves are sleeved on the handlebar folding shaft in tandem, and the inner wall of the handlebar folding fixed shaft sleeve is provided with a first limiting gap corresponding to the upper groove. The lower groove is provided with a second limit gap. The first limit gap and the second limit gap are both located at the edge of the contact surface of a pair of handlebar folding fixed sleeves, and a pair of first limit gaps cooperate to form a hemisphere A shaped first cavity and a pair of second limiting notches cooperate to form a hemispherical second cavity;

车把锁紧组件，其包括：车把锁紧边盖、一对车把定位钢珠、车把锁紧拉杆、车把锁紧拉杆压块、一对车把锁紧弹簧、车把锁紧弹簧垫板、车把锁紧轴，所述车把锁紧边盖与远离所述盖板的车把折叠固定轴套前侧抵接，其中一个车把定位钢珠的上部收纳在所述第一空腔内、下部收纳在所述上凹槽内，另一个车把定位钢珠的上部收纳在所述下凹槽内、下部收纳在所述第二空腔内，所述车把锁紧拉杆和所述车把锁紧拉杆压块均为U形结构，所述车把锁紧拉杆和所述车把锁紧拉杆压块均竖直设置，且所述车把锁紧拉杆的开口端与所述车把锁紧拉杆压块的开口端对应可拆卸连接，所述车把锁紧拉杆的闭合端与所述车把锁紧边盖的内侧面铰接，所述车把锁紧拉杆在其所在的竖直面绕铰点旋转，所述车把锁紧弹簧垫板上开设有第一通孔，所述车把锁紧弹簧垫板通过第一通孔套设在所述车把锁紧拉杆的两直边上且侧壁与所述车把折叠轴的内壁固接，一对车把锁紧弹簧分别对应套设在所述车把锁紧拉杆的两直边上，车把锁紧弹簧的一端与所述车把锁紧弹簧垫板抵接、另一端与所述车把锁紧拉杆压块抵接，所述车把锁紧轴包括两端的第一圆柱和位于两个第一圆柱间的第二圆柱，所述车把锁紧轴的第二圆柱水平穿设在所述车把锁紧拉杆压块两直边形成的空槽内，且两个第一圆柱水平伸出所述车把折叠轴，第一圆柱和第二圆柱的轴线平行但不重合，两个第一圆柱伸出所述车把折叠轴的部分固接有操纵其旋转的车把锁紧摇杆；Handlebar locking assembly, which includes: handlebar locking side cover, a pair of handlebar positioning steel balls, handlebar locking rod, handlebar locking rod compression block, a pair of handlebar locking springs, handlebar locking springs The backing plate, the handlebar locking shaft, the handlebar locking side cover abuts the front side of the handlebar foldable fixed shaft sleeve away from the cover plate, and the upper part of one of the handlebar positioning steel balls is accommodated in the first hollow The inner and lower parts of the cavity are housed in the upper groove, the upper part of the other handlebar positioning steel ball is housed in the lower groove, and the lower part is housed in the second cavity. The handlebar locks the lever and the The handlebar locking tie rod pressing block is U-shaped structure, the handlebar locking tie rod and the handlebar locking tie rod pressing block are both vertically arranged, and the open end of the handlebar locking tie rod is connected to the The open end of the handlebar locking lever pressing block is correspondingly detachably connected, the closed end of the handlebar locking lever is hinged with the inner side of the handlebar locking side cover, and the handlebar locking lever is located where it is. The vertical plane rotates around the hinge point, the handlebar locking spring pad is provided with a first through hole, and the handlebar locking spring pad is sleeved on the handlebar locking lever through the first through hole. On two straight sides and the side walls are fixedly connected to the inner wall of the handlebar folding shaft, a pair of handlebar lock springs are respectively sleeved on the two straight sides of the handlebar lock lever. The handlebar lock springs One end is in contact with the handlebar locking spring pad, and the other end is in contact with the handlebar locking lever compression block. The handlebar locking shaft includes a first cylinder at both ends and a first cylinder located between the two first cylinders. The second cylinder of the handlebar locking shaft horizontally penetrates the hollow groove formed by the two straight sides of the handlebar locking lever pressing block, and the two first cylinders extend horizontally from the car The axis of the folding shaft, the first cylinder and the second cylinder are parallel but not coincident, and the parts of the two first cylinders extending out of the handlebar folding shaft are fixedly connected with a handlebar locking rocker that controls its rotation;

其中，第一圆柱和第二圆柱的轴线设置为：当所述车把锁紧摇杆转动至下极限位置时，一对车把锁紧弹簧抵顶所述车把锁紧拉杆压块至所述车把锁紧拉杆压块与所述盖板无间隙，一对车把定位钢珠分别对应卡设在所述第一空腔和所述上凹槽以及所述下凹槽和所述第二空腔内，限制一对车把的旋转，当所述车把锁紧摇杆转动至上极限位置时，第二圆柱带动所述车把锁紧拉杆压块上移至所述车把锁紧拉杆压块与所述盖板产生间隙，一对车把定位钢珠分别从对应的所述第一空腔和所述上凹槽以及所述下凹槽和所述第二空腔内退出，不妨碍一对车把的旋转。Wherein, the axes of the first cylinder and the second cylinder are set such that when the handlebar locking rocker rotates to the lower limit position, a pair of handlebar locking springs press against the handlebar locking lever pressing block to the bottom There is no gap between the handlebar locking lever pressing block and the cover plate, and a pair of handlebar positioning steel balls are respectively correspondingly clamped in the first cavity and the upper groove, and the lower groove and the second groove In the cavity, the rotation of a pair of handlebars is restricted. When the handlebar locking rocker rotates to the upper limit position, the second cylinder drives the handlebar locking lever pressure block to move up to the handlebar locking lever There is a gap between the pressure block and the cover plate, and a pair of handlebar positioning steel balls are withdrawn from the corresponding first cavity and the upper groove, and the lower groove and the second cavity respectively, without obstructing The rotation of a pair of handlebars.

优选的是，所述的折叠电动车还包括立杆伸缩分总成，其包括：Preferably, the foldable electric vehicle further includes a pole telescopic sub-assembly, which includes:

一对立杆，一对立杆的上端均与所述车把折叠轴固接，每个立杆内部沿轴向均开设有第二通孔，每个立杆的下端均向下延伸一对弹性片；A pair of vertical rods. The upper ends of the pair of vertical rods are fixed to the handlebar folding shaft. Each vertical rod is provided with a second through hole along the axial direction. The lower end of each vertical rod extends downward with a pair of elastic sheets. ；

两套立杆伸缩组件，每套立杆伸缩组件均包括传动钢丝、立杆伸缩锁紧销、立杆伸缩锁紧弹簧，传动钢丝的上端安装在所述车把锁紧轴上，传动钢丝穿过第二通孔，传动钢丝的下端安装在立杆伸缩锁紧销上，立杆伸缩锁紧销自上而下包括杆部、块部，块部的外径大于杆部的外径，立杆伸缩锁紧弹簧套设在杆部上，立杆伸缩锁紧弹簧的上端抵顶立杆的底面、下端抵顶块部的顶面，块部的外周设有外滑动锥面；Two sets of vertical pole telescopic components, each of which includes a transmission wire, a vertical pole telescopic locking pin, and a vertical pole telescopic locking spring. The upper end of the transmission wire is installed on the handlebar locking shaft, and the transmission wire penetrates Through the second through hole, the lower end of the transmission wire is installed on the telescopic locking pin of the vertical pole. The telescopic locking pin of the vertical pole includes a rod and a block from top to bottom. The outer diameter of the block is larger than that of the rod. The rod telescopic locking spring is sleeved on the rod, the upper end of the telescopic locking spring of the vertical rod is against the bottom surface of the vertical rod, the lower end is against the top surface of the top block, and the outer periphery of the block is provided with an outer sliding cone;

一对滑动套管，每个滑动套管的内部均设有与外滑动锥面配合的内滑动锥面，每个滑动套管的外部均与一对弹性片可拆卸连接、且连接处位于滑动套管设有内滑动锥面的部分；A pair of sliding sleeves. The inside of each sliding sleeve is provided with an inner sliding cone that matches with the outer sliding cone. The outside of each sliding sleeve is detachably connected to a pair of elastic sheets, and the connection is located in the sliding The casing is provided with an inner sliding cone;

一对固定套管，一对固定套管的下端通过前叉结构轴承连接前轮轮毂；A pair of fixed sleeves, the lower ends of a pair of fixed sleeves are connected to the front wheel hub through the front fork structure bearing;

其中，当所述车把锁紧摇杆转动至上极限位置时，传动钢丝提升立杆伸缩锁紧销至外滑动锥面脱离内滑动锥面，一对弹性片不受力，立杆、一对弹性片、滑动套管形成的联动结构可沿轴向自由滑动到固定套管内部，当所述车把锁紧摇杆转动至下极限位置时，立杆伸缩锁紧弹簧推动立杆伸缩锁紧销 至外滑动锥面伸入内滑动锥面，一对弹性片受外胀力，联动结构的外尺寸大于固定套管的内径。Wherein, when the handlebar locking rocker rotates to the upper limit position, the transmission wire lifts the telescopic locking pin of the vertical rod until the outer sliding cone surface is separated from the inner sliding cone surface, and the pair of elastic pieces are not stressed, and the vertical rod and the pair of The linkage structure formed by the elastic sheet and the sliding sleeve can slide freely into the fixed sleeve in the axial direction. When the handlebar locking rocker rotates to the lower limit position, the vertical pole telescopic locking spring pushes the vertical pole telescopic locking The pin extends from the outer sliding cone surface into the inner sliding cone surface, and a pair of elastic sheets receives the external expansion force. The outer size of the linkage structure is larger than the inner diameter of the fixed sleeve.

优选的是，所述的折叠电动车还包括：一对携带拖轮和一个携带拖轮轴，携带拖轮轴固设在所述前叉折叠连杆背向脚踏板的侧面下端，一对携带拖轮对称套设在携带拖轮轴的两端。Preferably, the foldable electric vehicle further includes: a pair of carrying tugs and a carrying tug axle, the carrying tug axle is fixed at the lower end of the side of the front fork folding link facing away from the pedal, and the pair of carrying tugs are symmetrical It is sleeved on the two ends of the carrying tug wheel shaft.

本发明至少包括以下有益效果：本发明的车座支架上部为中空结构，折叠时可以实现与前叉空间的交叉错位，在进行车把和车座两个高度折叠时，同步进行长度收缩，而且加大了前轮轴到前叉折叠轴的轴距，可以提高前叉折叠时对车长度的收缩效果，折叠后还可以利用前轮和两个拖轮做直角立放，进一步减少占地空间，同时也可以使用两个拖轮拖拉携带车辆，便携性更高，此外，利用车把折叠和立杆伸缩可以实现在折叠一对车把时，同步缩短立杆，降低高度，一个折叠步骤即可完成车把折叠和立杆伸缩，操作更简单，折叠效率和效果更高，更便于携带。The present invention includes at least the following beneficial effects: the upper part of the seat bracket of the present invention has a hollow structure, which can be cross-displaced with the front fork space when folded, and when the handlebar and the seat are folded at two heights, the length shrinks simultaneously, and The wheelbase from the front wheel axle to the front fork folding axle is increased, which can improve the shrinkage of the length of the car when the front fork is folded. After folding, the front wheel and two tugs can be used to stand at right angles to further reduce the floor space. Two tugs can also be used to tow and carry the vehicle, which has higher portability. In addition, the use of handlebar folding and pole telescoping can achieve simultaneous shortening of the pole and lower height when folding a pair of handlebars. The car can be completed in one folding step. The folding and vertical poles can be extended and contracted, the operation is simpler, the folding efficiency and effect are higher, and it is easier to carry.

本发明的其它优点、目标和特征将部分通过下面的说明体现，部分还将通过对本发明的研究和实践而为本领域的技术人员所理解。Other advantages, objectives and features of the present invention will be partially embodied by the following description, and partly will be understood by those skilled in the art through the research and practice of the present invention.

附图说明Description of the drawings

图1为本发明其中一种技术方案所述折叠电动车的前叉和后叉的展开立体结构图；Fig. 1 is an unfolded three-dimensional structural view of the front fork and the rear fork of a folding electric vehicle according to one of the technical solutions of the present invention;

图2为本发明其中一种技术方案所述折叠电动车的前叉和后叉的折叠立体结构图；2 is a three-dimensional structure diagram of the front fork and the rear fork of the folding electric vehicle according to one of the technical solutions of the present invention;

图3为本发明其中一种技术方案所述折叠电动车的前叉和后叉的展开平面图；3 is an unfolded plan view of the front fork and the rear fork of the folding electric vehicle according to one of the technical solutions of the present invention;

图4为本发明其中一种技术方案所述折叠电动车的后叉折叠分总成的示意图；4 is a schematic diagram of the rear fork folding sub-assembly of the folding electric vehicle according to one of the technical solutions of the present invention;

图5为本发明其中一种技术方案所述折叠电动车的前叉折叠分总成的示 意图；Figure 5 is a schematic diagram of the front fork folding sub-assembly of the foldable electric vehicle according to one of the technical solutions of the present invention;

图6为本发明其中一种技术方案所述折叠电动车的前叉和后叉的***图；Figure 6 is an exploded view of the front fork and the rear fork of the foldable electric vehicle according to one of the technical solutions of the present invention;

图7为本发明其中一种技术方案所述折叠电动车的车把和立杆的展开平面图；Figure 7 is an unfolded plan view of the handlebars and poles of the folding electric vehicle according to one of the technical solutions of the present invention;

图8为本发明其中一种技术方案所述折叠电动车的车把和立杆的折叠平面图；Figure 8 is a folded plan view of the handlebars and poles of the folding electric vehicle according to one of the technical solutions of the present invention;

图9为本发明其中一种技术方案所述折叠电动车的车把折叠分总成的剖视图；9 is a cross-sectional view of the handlebar folding sub-assembly of the folding electric bicycle according to one of the technical solutions of the present invention;

图10为本发明其中一种技术方案所述折叠电动车的立杆伸缩分总成的剖视图；10 is a cross-sectional view of the vertical pole telescopic sub-assembly of the folding electric vehicle according to one of the technical solutions of the present invention;

图11为本发明其中一种技术方案所述折叠电动车的车把和立杆的剖视图；Figure 11 is a cross-sectional view of the handlebars and poles of the folding electric vehicle according to one of the technical solutions of the present invention;

图12为本发明其中一种技术方案所述折叠电动车的车把和立杆的***图。Fig. 12 is an exploded view of the handlebars and poles of the folding electric vehicle according to one of the technical solutions of the present invention.

具体实施方式detailed description

下面结合附图对本发明做进一步的详细说明，以令本领域技术人员参照说明书文字能够据以实施。The present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement it with reference to the text of the description.

应当理解，本文所使用的诸如“具有”、“包含”以及“包括”术语并不配出一个或多个其它元件或其组合的存在或添加。It should be understood that terms such as "having", "including" and "including" used herein do not equate the presence or addition of one or more other elements or combinations thereof.

如图1～6所示，本发明提供了一种折叠电动车，包括前叉、脚踏板和车座支架，其特征在于，车座支架上部为中空结构，车座支架可绕脚踏板后端旋转，前叉可绕脚踏板前端旋转，当车座支架向前旋转至与脚踏板抵紧时，前叉向后旋转容纳在车座支架的中空部分且卡紧车座支架。As shown in Figures 1 to 6, the present invention provides a foldable electric vehicle, including a front fork, a footrest and a seat bracket, which is characterized in that the upper part of the seat bracket is a hollow structure, and the seat bracket can wrap around the pedal When the rear end rotates, the front fork can rotate around the front end of the foot pedal. When the seat bracket rotates forward to abut against the foot pedal, the front fork rotates backward and is accommodated in the hollow part of the seat bracket and clamps the seat bracket.

在这种技术方案中，先将车座支架向前旋转，使其与脚踏板抵接，然后向后旋转前叉，利用车座支架的中空部分进行交叉错位收纳前叉，从而缩短车折叠后的长度和高度，大大减少占用空间，也便于携带，折叠效果更好。In this technical solution, the seat bracket is first rotated forward to make it abut the foot pedal, and then the front fork is rotated backward, and the hollow part of the seat bracket is used to cross and displace the front fork, thereby shortening the folding of the car. The length and height of the back greatly reduce the space occupied, and it is also easy to carry, and the folding effect is better.

在另一种技术方案中，所述的折叠电动车包括后叉折叠分总成，其包括：In another technical solution, the folding electric vehicle includes a rear fork folding sub-assembly, which includes:

一对后叉折叠杆1，一对后叉折叠杆1对称设置在脚踏板两侧，脚踏板水平设置在前叉和后叉之间，一对后叉折叠杆1的上部与车座支架固接，后叉折叠杆1的下部具有第一延伸面2，第一延伸面2的径向截面为弓形，一对第一延伸面2通过后叉折叠轴3与脚踏板后端可旋转连接，后叉折叠轴3固定穿设在脚踏板后端且两端分别穿出脚踏板的两侧，一对第一延伸面2的下端分别对应可旋转套设在后叉折叠轴3的两端上，后叉折叠杆1上设有后叉折叠限位挡圈4，后叉折叠限位挡圈4高于第一延伸面2，第一延伸面2的弧面上设有径向长度自上而下依次递增的第一锥面5，第一锥面5高于所述后叉折叠轴3；A pair of rear fork folding rods 1, a pair of rear fork folding rods 1 are symmetrically arranged on both sides of the foot pedal, and the foot pedal is horizontally arranged between the front fork and the rear fork. The upper part of the pair of rear fork folding rods 1 is connected to the seat The bracket is fixedly connected. The lower part of the rear fork folding lever 1 has a first extension surface 2. The radial section of the first extension surface 2 is arcuate. A pair of first extension surfaces 2 can pass through the rear fork folding shaft 3 and the rear end of the foot pedal. Rotating connection, the rear fork folding shaft 3 is fixedly inserted at the rear end of the foot pedal, and both ends pass through the two sides of the foot pedal respectively. The lower ends of a pair of first extension surfaces 2 are respectively rotatably sleeved on the rear fork folding shaft At both ends of 3, the rear fork folding lever 1 is provided with a rear fork folding limit stop ring 4, the rear fork folding limit stop ring 4 is higher than the first extension surface 2, and the arc surface of the first extension surface 2 is provided The first tapered surface 5 whose radial length increases sequentially from top to bottom, the first tapered surface 5 being higher than the rear fork folding shaft 3;

一对后叉折叠锁杆6，一对后叉折叠锁杆6均套设在所述后叉折叠轴3上且均与脚踏板后端固接，后叉折叠锁杆6上部具有第二延伸面7，第二延伸面7与第一延伸面2的接触面为平面，第二延伸面7与第一延伸面2拼合形成圆柱状，第二延伸面7的弧面上设有径向长度自上而下依次递增的第二锥面8，第二锥面8高于所述后叉折叠轴3；A pair of rear fork folding lock rods 6, a pair of rear fork folding lock rods 6 are sleeved on the rear fork folding shaft 3 and are both fixed to the rear end of the pedal, and the upper part of the rear fork folding lock rod 6 has a second The extension surface 7, the contact surface between the second extension surface 7 and the first extension surface 2 is a plane, the second extension surface 7 and the first extension surface 2 are joined together to form a cylindrical shape, and the arc surface of the second extension surface 7 is provided with a radial A second tapered surface 8 whose length increases sequentially from top to bottom, and the second tapered surface 8 is higher than the rear fork folding shaft 3;

一对后叉折叠套管9和套管连杆10，一对后叉折叠套管9分别对应套设在一对后叉折叠杆1上，且后叉折叠套管9套设后叉折叠限位挡圈4，后叉折叠套管9内壁沿径向设有限位块，限位块可以为方形，也可以为圆柱形，限位块低于后叉折叠限位挡圈4，所述套管连杆10连接一对后叉折叠套管9，形成用于提拉一对后叉折叠套管9的持握部；A pair of rear fork folding sleeves 9 and a sleeve connecting rod 10, a pair of rear fork folding sleeves 9 are respectively sleeved on a pair of rear fork folding rods 1, and the rear fork folding sleeves 9 are sleeved with a rear fork folding limit Position stop ring 4, the inner wall of the rear fork folding sleeve 9 is provided with a stop block along the radial direction. The stop block can be square or cylindrical. The stop block is lower than the rear fork folding stop stop ring 4. The tube connecting rod 10 connects a pair of rear fork folding sleeves 9 to form a grip for pulling a pair of rear fork folding sleeves 9;

一对套管复位弹簧11，一对套管复位弹簧11分别对应套设在一对后叉折叠杆1上，套管复位弹簧11的下端与限位块抵接、上端与后叉折叠限位挡圈4抵接；A pair of sleeve return springs 11 and a pair of sleeve return springs 11 are respectively sleeved on a pair of rear fork folding rods 1. The lower end of the sleeve return spring 11 is in contact with the limiting block, and the upper end is folded to limit the rear fork. The retaining ring 4 abuts;

其中，当套管复位弹簧11的弹性力使后叉折叠套管9套设在第一延伸面 2和第二延伸面7形成的圆柱结构外部时，第一锥面5和第二锥面8配合形成限制后叉折叠套管9向下运动的阻碍，此时后叉折叠套管9锁紧一对后叉折叠杆1和一对后叉折叠锁杆6，一对后叉折叠杆1不能旋转，后叉保持展开状态，当套管复位弹簧11被压缩至后叉折叠套管9脱离第二延伸面7时，后叉折叠杆1可绕所述后叉折叠轴3旋转，在一对后叉折叠杆1的旋转作用下带动后叉一起旋转，使后叉折叠到脚踏板上，降低后叉的高度，同时缩短车的长度。Wherein, when the elastic force of the sleeve return spring 11 causes the rear fork folding sleeve 9 to be sleeved outside the cylindrical structure formed by the first extension surface 2 and the second extension surface 7, the first cone surface 5 and the second cone surface 8 The cooperation forms an obstacle that restricts the downward movement of the rear fork folding sleeve 9. At this time, the rear fork folding sleeve 9 locks a pair of rear fork folding levers 1 and a pair of rear fork folding lock levers 6, and a pair of rear fork folding levers 1 cannot After rotating, the rear fork remains unfolded. When the sleeve return spring 11 is compressed until the rear fork folding sleeve 9 is separated from the second extension surface 7, the rear fork folding lever 1 can rotate around the rear fork folding shaft 3, The rotation of the rear fork folding lever 1 drives the rear fork to rotate together, so that the rear fork is folded on the foot pedal, which reduces the height of the rear fork and shortens the length of the vehicle.

在这种技术方案中，当提拉套管连杆10时，一对后叉折叠套管9会上移，当上移至一对后叉折叠套管9脱离一对后叉折叠锁杆6时，一对后叉折叠杆1失去束缚，可绕后叉折叠轴3旋转，进而带动后叉旋转，使后叉折叠到脚踏板上，此时，后叉处于折叠状态，实现后叉高度的降低和车长度的缩短，当展开后叉时，一对后叉折叠杆1绕后叉折叠轴3旋转至展开位置，提拉套管连杆10，使一对后叉折叠套管9上移，此时一对后叉折叠杆1和一对后叉折叠锁杆6拼合在一起形成圆柱状，松开套管连杆10，在一对套管复位弹簧11的作用下推动一对后叉折叠套管9下移，使一对后叉折叠套管9对应套设一对后叉折叠杆1和一对后叉折叠锁杆6，此时第一锥面5和第二锥面8与后叉折叠套管9的内壁抵紧，限制后叉折叠套管9继续下移，而一对后叉折叠杆1被一对后叉折叠套管9锁紧，不能旋转，从而将后叉锁紧在展开状态。采用这种技术方案时，后叉折叠套管9和后叉折叠杆1通过第一锥面5和第二锥面8配合，可以消除配合间隙，减少震动，提高结构稳定性，也便于后叉折叠套管9退出，避免因受力变形造成后叉折叠套管9卡死。In this technical solution, when the sleeve connecting rod 10 is lifted, the pair of rear fork folding sleeves 9 will move up, and when the pair of rear fork folding sleeves 9 are moved up, the pair of rear fork folding lock rods 6 will be separated. When a pair of rear fork folding rods 1 lose their restraints, they can rotate around the rear fork folding shaft 3, which in turn drives the rear fork to rotate, so that the rear fork is folded onto the pedal. At this time, the rear fork is in a folded state to achieve the height of the rear fork. When the rear fork is unfolded, the pair of rear fork folding rods 1 rotate around the rear fork folding shaft 3 to the unfolded position, and the sleeve connecting rod 10 is lifted to make the pair of rear fork folding sleeves 9 up At this time, a pair of rear fork folding rods 1 and a pair of rear fork folding lock rods 6 are joined together to form a cylindrical shape. The casing connecting rod 10 is loosened, and the pair of rear forks is pushed by the pair of casing return springs 11. The fork folding sleeve 9 is moved down so that a pair of rear fork folding sleeves 9 are correspondingly sleeved with a pair of rear fork folding rods 1 and a pair of rear fork folding lock rods 6, at this time, the first cone surface 5 and the second cone surface 8 It is tightly pressed against the inner wall of the rear fork folding sleeve 9 to restrict the rear fork folding sleeve 9 from continuing to move down, and the pair of rear fork folding rods 1 are locked by the pair of rear fork folding sleeves 9 and cannot be rotated, thereby locking the rear fork Locked in unfolded state. When using this technical solution, the rear fork folding sleeve 9 and the rear fork folding rod 1 are matched through the first cone surface 5 and the second cone surface 8, which can eliminate the fit gap, reduce vibration, improve structural stability, and facilitate the rear fork The folding sleeve 9 is withdrawn to avoid jamming of the rear fork folding sleeve 9 due to force deformation.

在另一种技术方案中，所述的折叠电动车还包括前叉折叠分总成，其包括：In another technical solution, the folding electric vehicle further includes a front fork folding sub-assembly, which includes:

前叉折叠连杆12，其倾斜设置在前叉和脚踏板前端之间，所述前叉折叠连杆12的上端与前叉固接、下端通过前叉折叠轴13与脚踏板前端可旋转连接，前叉折叠轴13与脚踏板前端固接且与折叠电动车的行进方向垂直，前叉折叠连杆12的下端可旋转地套设在前叉折叠轴13的中部，所述前叉折叠连杆12朝向脚踏板的侧面下部开设有滑槽14；The front fork folding link 12 is arranged obliquely between the front fork and the front end of the foot pedal. The upper end of the front fork folding link 12 is fixed to the front fork, and the lower end can be connected to the front end of the foot pedal through the front fork folding shaft 13 The front fork folding shaft 13 is fixedly connected to the front end of the foot pedal and is perpendicular to the traveling direction of the folding electric vehicle. The lower end of the front fork folding link 12 is rotatably sleeved in the middle of the front fork folding shaft 13. The fork folding link 12 is provided with a sliding groove 14 toward the lower part of the side of the pedal;

前叉折叠滑块15和前叉折叠限位销16，所述前叉折叠滑块15可滑动地设置在所述滑槽14内，所述前叉折叠限位销16穿设在所述前叉折叠滑块15上且两端均延伸到所述前叉折叠滑块15外部，前叉折叠限位销16可为圆柱杆状，也可以为方形杆状，前叉折叠限位销16的两端位于滑槽14之外，所述前叉折叠限位销16垂直所述前叉折叠滑块15的滑动方向；The front fork folding slider 15 and the front fork folding limit pin 16, the front fork folding slider 15 is slidably arranged in the chute 14, the front fork folding limit pin 16 passes through the front The fork folding slider 15 and both ends extend to the outside of the front fork folding slider 15. The front fork folding limit pin 16 can be cylindrical rod-shaped or square rod-shaped. Both ends are located outside the sliding groove 14, and the front fork folding limit pin 16 is perpendicular to the sliding direction of the front fork folding slider 15;

滑块复位弹簧17，其上端与所述前叉折叠连杆12固接、下端与所述前叉折叠滑块15固接，所述滑块复位弹簧17的弹性力可驱动所述前叉折叠滑块15在所述滑槽14内滑动；The slider return spring 17 is fixedly connected to the front fork folding link 12 at its upper end and fixed to the front fork folding slider 15 at its lower end. The elastic force of the slider return spring 17 can drive the front fork to fold The sliding block 15 slides in the sliding groove 14;

一对前叉折叠限位板18，一对前叉折叠限位板18对称设置在所述前叉折叠连杆12下端的两侧，一对前叉折叠限位板18均套设在所述前叉折叠轴13上且均与脚踏板前端固接，前叉折叠限位板18的顶部为高度沿靠近脚踏板的方向依次递减的弧形结构，且弧边边缘上开设有上限位缺口19和下限位缺口20，前叉折叠限位板18类似扇形结构，且扇形弧面朝上，所述前叉折叠限位销16的两端可卡设在一对上限位缺口19或一对下限位缺口20上；A pair of front fork folding limit plates 18, a pair of front fork folding limit plates 18 are symmetrically arranged on both sides of the lower end of the front fork folding link 12, a pair of front fork folding limit plates 18 are sleeved on the The front fork folding shaft 13 is fixed to the front end of the pedal. The top of the front fork folding limit plate 18 is an arc structure whose height decreases in the direction close to the pedal, and an upper limit is provided on the edge of the arc. The notch 19 and the lower limit notch 20. The front fork folding limit plate 18 is similar to a fan-shaped structure, and the fan-shaped arc faces upwards. The two ends of the front fork folding limit pin 16 can be clamped in a pair of upper limit notches 19 or one On the lower limit gap 20;

其中，当所述滑块复位弹簧17的弹性力使所述前叉折叠限位销16卡设在一对上限位缺口19上时，前叉处于展开状态，当所述滑块复位弹簧17的弹性力使所述前叉折叠限位销16卡设在一对下限位缺口20上时，前叉处于折叠状态。Wherein, when the elastic force of the slider return spring 17 causes the front fork folding limit pin 16 to be locked on the pair of upper limit notches 19, the front fork is in an unfolded state, and when the slider return spring 17 When the elastic force causes the front fork folding limit pin 16 to be clamped on the pair of lower limit notches 20, the front fork is in a folded state.

在这种技术方案中，当上提前叉折叠滑块15时，前叉折叠滑块15同时带动前叉折叠限位销16上移，使前叉折叠限位销16从一对上限位缺口19中退出，此时前叉折叠连杆12失去束缚，可绕前叉折叠轴13旋转，进而带动前叉一起旋转，实现前叉的折叠，而前叉折叠限位销16的两端分别沿一对前叉折叠限位板18的顶面向下滑动至前叉折叠连杆12旋转至折叠位置，此时，在滑块复位弹簧17的作用下推动前叉折叠滑块15滑动，使前叉折叠限位销16的两端卡设在一对下限位缺口20内，前叉折叠连杆12被限定不能旋转，将前叉锁定在折叠状态，防止发生滑动，保证折叠的稳固性，当上提前叉折叠滑块15使前叉折叠限位销16从一对下限位缺口20中退出时，前叉折叠连杆12失去束缚，可绕前叉折叠轴13旋转，将前叉折叠轴13旋转至展开位置 时，在滑块复位弹簧17的作用下推动前叉折叠滑块15下滑，使前叉折叠限位销16的两端卡设在一对上限位缺口19内，此时，前叉折叠连杆12被限定不能旋转，将前叉锁定在展开状态，防止发生滑动，保证骑行时的安全。采用这种技术方案时，前叉的折叠和展开通过前叉折叠限位销16与一对上限位缺口19、一对下限位缺口20配合锁紧位置，只要两者间存在间隙，滑块复位弹簧17就会向下推动前叉折叠限位销16以消除间隙，提高结构的稳固性。In this technical solution, when the slider 15 is folded in advance, the front fork folding slider 15 simultaneously drives the front fork folding limit pin 16 to move up, so that the front fork folding limit pin 16 moves from a pair of upper limit notches 19 At this time, the front fork folding link 12 loses its restraint, and it can rotate around the front fork folding shaft 13, and then drive the front fork to rotate together to realize the folding of the front fork. Slide the top surface of the front fork folding limit plate 18 downward until the front fork folding link 12 rotates to the folding position. At this time, the front fork folding slider 15 is pushed to slide under the action of the slider return spring 17 to fold the front fork The two ends of the limit pin 16 are clamped in a pair of lower limit notches 20, the front fork folding link 12 is restricted from rotating, and the front fork is locked in the folded state to prevent sliding and ensure the stability of the folding. When the fork folding slider 15 makes the front fork folding limit pin 16 withdraw from the pair of lower limit gaps 20, the front fork folding link 12 loses its restraint and can rotate around the front fork folding shaft 13 to rotate the front fork folding shaft 13 to In the unfolded position, the front fork folding slider 15 is pushed down under the action of the slider return spring 17, so that the two ends of the front fork folding limit pin 16 are locked in a pair of upper limit notches 19, at this time, the front fork is folded The connecting rod 12 is restricted from rotating, and the front fork is locked in the unfolded state to prevent sliding and ensure safety during riding. When using this technical solution, the front fork is folded and unfolded through the front fork folding limit pin 16 and a pair of upper limit notches 19 and a pair of lower limit notches 20 to match the locking position. As long as there is a gap between the two, the slider is reset. The spring 17 will push the front fork folding limit pin 16 downward to eliminate the gap and improve the stability of the structure.

在另一种技术方案中，所述滑槽14的上部固设有凸块21，所述滑块复位弹簧17的上端与所述凸块21固接，所述前叉折叠滑块15上固接有圆柱状拉耳22，拉耳22中部开设有圆柱状通孔。设置凸块21后便于将滑块复位弹簧17的上端固接到前叉折叠连杆12上，而拉耳22的设置便于使用者提拉前叉折叠滑块15，使前叉的折叠和展开更方便快捷。In another technical solution, the upper part of the sliding groove 14 is fixedly provided with a protrusion 21, the upper end of the slider return spring 17 is fixedly connected with the protrusion 21, and the front fork folding slider 15 is fixed on the upper end. A cylindrical pull ear 22 is connected, and a cylindrical through hole is opened in the middle of the pull ear 22. After the projection 21 is provided, it is convenient to fix the upper end of the slider return spring 17 to the front fork folding link 12, and the setting of the pull ear 22 facilitates the user to lift the front fork folding slider 15 to fold and unfold the front fork More convenient and faster.

在另一种技术方案中，上限位缺口19高于脚踏板，上限位缺口19的开口方向朝上，下限位缺口20低于脚踏板，下限位缺口20的开口方向朝向折叠电动车的后轮且与脚踏板平行，上限位缺口19和下限位缺口20均呈夹角为45°的类V形结构。上限位缺口19高于脚踏板时，方便前叉展开后锁紧前叉折叠连杆12，下限位缺口20低于脚踏板时，可使前叉完全收纳在车座支架的中空部分，进一步降低折叠后车的高度，而45°的类V形结构缺口的卡设效果最佳。In another technical solution, the upper limit gap 19 is higher than the pedal, the opening direction of the upper limit gap 19 is upward, the lower limit gap 20 is lower than the pedal, and the opening direction of the lower limit gap 20 faces the folding electric vehicle The rear wheel is parallel to the pedals, and the upper limit gap 19 and the lower limit gap 20 both have a V-shaped structure with an angle of 45°. When the upper limit gap 19 is higher than the pedal, it is convenient to lock the front fork folding link 12 after the front fork is unfolded. When the lower limit gap 20 is lower than the pedal, the front fork can be completely stored in the hollow part of the seat bracket. The height of the folded car is further reduced, and the 45°-like V-shaped structural gap has the best clamping effect.

在另一种技术方案中，每个后叉折叠套管9内限位块的数量为2个，2个限位块关于后叉折叠套管9的轴线对称。2个限位块对称设置可稳固地抵接套管复位弹簧11，保证折叠电动车的稳定性和安全性。In another technical solution, the number of limit blocks in each rear fork folding sleeve 9 is two, and the two limit blocks are symmetrical with respect to the axis of the rear fork folding sleeve 9. The symmetrical arrangement of the two limit blocks can firmly abut the sleeve return spring 11 to ensure the stability and safety of the folding electric vehicle.

在另一种技术方案中，所述套管连杆10为U形结构，U形两端分别与一对后叉折叠套管9的侧壁对应固接。U形结构的套管连杆10可方便与一对后叉折叠套管9固接。In another technical solution, the sleeve connecting rod 10 has a U-shaped structure, and the two ends of the U-shaped structure are respectively fixed to the side walls of a pair of rear fork folding sleeves 9. The U-shaped structure of the sleeve connecting rod 10 can be conveniently fixed to a pair of rear fork folding sleeves 9.

在另一种技术方案中，如图7～12所示，所述的折叠电动车还包括车把27折叠分总成，其包括：In another technical solution, as shown in FIGS. 7-12, the folding electric bicycle further includes a handlebar 27 folding sub-assembly, which includes:

车把折叠轴23，其水平固设在前叉上端，且与折叠电动车的行进方向平 行，所述车把折叠轴23为两端敞口的圆筒状，即车把折叠轴23两端敞口且中空，所述车把折叠轴23的后端设有盖板24，所述车把折叠轴23靠近前端的外壁上沿其轴向开设有上凹槽25和下凹槽26；上凹槽25和下凹槽26分别位于车把折叠轴23的顶部和底部且关于车把折叠轴23的轴线对称；The handlebar folding shaft 23 is horizontally fixed on the upper end of the front fork and is parallel to the traveling direction of the folding electric vehicle. The handlebar folding shaft 23 is a cylindrical shape with open ends, that is, both ends of the handlebar folding shaft 23 Open and hollow, the rear end of the handlebar folding shaft 23 is provided with a cover plate 24, and the outer wall of the handlebar folding shaft 23 near the front end is provided with an upper groove 25 and a lower groove 26 along its axial direction; The groove 25 and the lower groove 26 are respectively located at the top and bottom of the handlebar folding shaft 23 and are symmetrical about the axis of the handlebar folding shaft 23;

一对车把27，一对车把27呈V形结构，车把27的上端形成持握部、下端固接有车把折叠固定轴套28，车把27通过半球形连接件与车把折叠固定轴套28固接，连接件的直径为车把折叠固定轴套28宽度的一倍，车把27的下端与连接件的球面中央固接，车把折叠固定轴套28与连接件的平面一侧固接，车把折叠固定轴套28为圆环形，且一对车把折叠固定轴套28拼接形成圆环形，两个圆环形的车把折叠固定轴套28拼合在一起后仍然为圆环形，一对车把折叠固定轴套28一前一后地套设在所述车把折叠轴23上，一对车把折叠固定轴套28套设后一对车把27处于同一竖直面上，车把折叠固定轴套28内壁对应所述上凹槽25处设有第一限位缺口、对应所述下凹槽26处设有第二限位缺口，第一限位缺口和第二限位缺口均位于一对车把折叠固定轴套28接触面的边缘处，且一对第一限位缺口配合形成半球形第一空腔、一对第二限位缺口配合形成半球形第二空腔；A pair of handlebars 27 and a pair of handlebars 27 have a V-shaped structure. The upper end of the handlebar 27 forms a gripping part, and the lower end is fixedly connected with a handlebar folding fixing sleeve 28. The handlebar 27 is folded with the handlebar through a hemispherical connector The fixed shaft sleeve 28 is fixedly connected, the diameter of the connecting piece is twice the width of the handlebar folding fixed shaft sleeve 28, the lower end of the handlebar 27 is fixedly connected with the spherical center of the connecting piece, the handlebar folding fixed sleeve 28 and the plane of the connecting piece One side is fixed, the handlebar folding fixing shaft sleeve 28 is in a circular ring shape, and a pair of handlebar folding fixing shaft sleeves 28 are spliced to form a circular ring shape, and the two circular ring shape handlebar folding fixing shaft sleeves 28 are joined together. Still in a circular ring shape, a pair of handlebar folding and fixing shaft sleeves 28 are sleeved on the handlebar folding shaft 23 one after the other. On the same vertical surface, the inner wall of the handlebar folding fixed sleeve 28 is provided with a first limit gap corresponding to the upper groove 25, and a second limit gap is provided corresponding to the lower groove 26. The first limit The notch and the second limit notch are both located at the edge of the contact surface of a pair of handlebar folding fixed sleeve 28, and a pair of first limit notches cooperate to form a hemispherical first cavity and a pair of second limit notches cooperate to form Hemispherical second cavity;

车把锁紧组件，其包括：车把锁紧边盖29、一对车把定位钢珠30、车把锁紧拉杆31、车把锁紧拉杆压块32、一对车把锁紧弹簧33、车把锁紧弹簧垫板34、车把锁紧轴35，所述车把锁紧边盖29与远离所述盖板24的车把折叠固定轴套28前侧抵接，其中一个车把定位钢珠30的上部收纳在所述第一空腔内、下部收纳在所述上凹槽25内，另一个车把定位钢珠30的上部收纳在所述下凹槽26内、下部收纳在所述第二空腔内，车把27在转动过程中，一对车把定位钢珠30从第一空腔和第二空腔内退出，只能在上凹槽25和下凹槽26内回来滚动，当车把27锁紧在展开或折叠位置时，一对车把定位钢珠30被卡设在第一空腔、第二空腔和上凹槽25、下凹槽26内，不能滚动，所述车把锁紧拉杆31和所述车把锁紧拉杆压块32均为U形结构，所述车把锁紧拉杆31和所述车把锁紧拉杆压块32均竖直设置，且所述车把锁紧拉杆31的开口端与所述车把锁紧拉杆压块32的开口端对应可拆卸连接，车把锁紧拉杆31的开口端与车把锁紧拉杆压块32的开口端通过两根螺钉可拆卸连接在 一起，所述车把锁紧拉杆31的闭合端与所述车把锁紧边盖29的内侧面铰接，所述车把锁紧拉杆31在其所在的竖直面绕铰点旋转，所述车把锁紧弹簧垫板34上开设有第一通孔，所述车把锁紧弹簧垫板34通过第一通孔套设在所述车把锁紧拉杆31的两直边上且侧壁与所述车把折叠轴23的内壁固接，一对车把锁紧弹簧33分别对应套设在所述车把锁紧拉杆31的两直边上，车把锁紧弹簧33的一端与所述车把锁紧弹簧垫板34抵接、另一端与所述车把锁紧拉杆压块32抵接，所述车把锁紧轴35包括两端的第一圆柱和位于两个第一圆柱间的第二圆柱，所述车把锁紧轴35的第二圆柱水平穿设在所述车把锁紧拉杆压块32两直边形成的空槽内，且两个第一圆柱水平伸出所述车把折叠轴23，第一圆柱和第二圆柱的轴线平行但不重合，两个第一圆柱伸出所述车把折叠轴23的部分固接有操纵其旋转的车把锁紧摇杆36；摇动车把锁紧摇杆36时，车把锁紧轴35绕第一圆柱的轴线旋转，而第二圆柱的轴线与第一圆柱的轴线不重合，为偏心轴，因此第二圆柱转动到不同的位置时，其与车把锁紧拉杆压块32两直边间的距离也不同，当运动到上方时，可抵顶车把锁紧拉杆压块32上移；The handlebar locking assembly includes: handlebar locking side cover 29, a pair of handlebar positioning steel balls 30, handlebar locking rod 31, handlebar locking rod pressing block 32, a pair of handlebar locking spring 33, The handlebar locking spring pad 34, the handlebar locking shaft 35, the handlebar locking side cover 29 abuts against the front side of the handlebar folding fixing shaft sleeve 28 away from the cover 24, and one of the handlebars is positioned The upper part of the steel ball 30 is housed in the first cavity, the lower part is housed in the upper groove 25, the upper part of the other handlebar positioning steel ball 30 is housed in the lower groove 26, and the lower part is housed in the first cavity. In the second cavity, when the handlebar 27 is rotating, a pair of handlebar positioning steel balls 30 withdraw from the first cavity and the second cavity and can only roll back in the upper groove 25 and the lower groove 26. When the handlebar 27 is locked in the unfolded or folded position, a pair of handlebar positioning steel balls 30 are stuck in the first cavity, the second cavity, the upper groove 25, the lower groove 26, and cannot roll. The locking rod 31 and the handlebar locking rod pressing block 32 are both U-shaped structures, the handlebar locking rod 31 and the handlebar locking rod pressing block 32 are both vertically arranged, and the handlebar The open end of the locking rod 31 is detachably connected to the open end of the handlebar locking rod pressing block 32, and the open end of the handlebar locking rod 31 and the open end of the handlebar locking rod pressing block 32 pass through two The two screws are detachably connected together. The closed end of the handlebar locking rod 31 is hinged to the inner side of the handlebar locking side cover 29, and the handlebar locking rod 31 is wound around the vertical surface where it is located. When the hinge point is rotated, the handlebar locking spring pad 34 is provided with a first through hole, and the handlebar locking spring pad 34 is sleeved on both sides of the handlebar locking rod 31 through the first through hole. On the straight side and the side wall is fixedly connected with the inner wall of the handlebar folding shaft 23, a pair of handlebar locking springs 33 are respectively sleeved on the two straight sides of the handlebar locking rod 31, and the handlebar is locked. One end of the spring 33 is in contact with the handlebar locking spring pad 34, and the other end is in contact with the handlebar locking lever pressure block 32. The handlebar locking shaft 35 includes a first cylinder at both ends and a The second cylinder between the two first cylinders, the second cylinder of the handlebar locking shaft 35 is horizontally inserted in the hollow groove formed by the two straight sides of the handlebar locking lever pressing block 32, and the two second cylinders A cylinder extends horizontally from the handlebar folding shaft 23, the axes of the first cylinder and the second cylinder are parallel but not coincident, and the parts of the two first cylinders extending from the handlebar folding shaft 23 are fixedly connected to manipulate its rotation Handlebar locking rocker 36; when shaking the handlebar locking rocker 36, the handlebar locking shaft 35 rotates around the axis of the first cylinder, and the axis of the second cylinder does not coincide with the axis of the first cylinder, which is an eccentric shaft Therefore, when the second cylinder rotates to a different position, the distance between it and the two straight sides of the handlebar locking lever pressing block 32 is also different. When it moves to the top, it can push the handlebar locking lever pressing block 32 upward. ；

其中，第一圆柱和第二圆柱的轴线设置为：当所述车把锁紧摇杆36转动至下极限位置时，一对车把锁紧弹簧33抵顶所述车把锁紧拉杆压块32至所述车把锁紧拉杆压块32与所述盖板24无间隙，一对车把定位钢珠30分别对应卡设在所述第一空腔和所述上凹槽25以及所述下凹槽26和所述第二空腔内，限制一对车把27的旋转，当所述车把锁紧摇杆36转动至上极限位置时，第二圆柱带动所述车把锁紧拉杆压块32上移至所述车把锁紧拉杆压块32与所述盖板24产生间隙，一对车把定位钢珠30分别从对应的所述第一空腔和所述上凹槽25以及所述下凹槽26和所述第二空腔内退出，不妨碍一对车把27的旋转。Wherein, the axes of the first cylinder and the second cylinder are set such that when the handlebar locking rocker 36 rotates to the lower limit position, a pair of handlebar locking springs 33 press against the handlebar locking lever pressing block 32 to the handlebar locking lever pressing block 32 and the cover plate 24, a pair of handlebar positioning steel balls 30 are respectively correspondingly clamped in the first cavity and the upper groove 25 and the lower The groove 26 and the second cavity restrict the rotation of a pair of handlebars 27. When the handlebar locking rocker 36 rotates to the upper limit position, the second cylinder drives the handlebar locking lever pressing block 32 is moved up to the handlebar locking lever block 32 and the cover plate 24 to create a gap, a pair of handlebar positioning steel balls 30 from the corresponding first cavity and the upper groove 25 and the said The lower groove 26 and the second cavity retreat without hindering the rotation of the pair of handlebars 27.

现有的电动车的车把折叠多采用45°斜轴折叠方式，一个折叠动作可以实现高度和宽度两个方向的压缩，但其折叠后车把是垂向车身中线的一侧，折叠后体积仍然较大，而滑板车多采用车把横杆折叠，竖杆伸缩的折叠方式，但要有两个折叠步骤才能完成，折叠过程比较繁琐，在这种技术方案中，当车把27位于展开位置时，车把锁紧摇杆36位于下极限位置，此时车把锁紧 拉杆压块32处于水平状态，在一对车把锁紧弹簧33的弹性力作用下抵顶车把锁紧拉杆压块32，使车把锁紧拉杆压块32与盖板24无间隙，一对车把定位钢珠30卡设在第一空腔和上凹槽25以及下凹槽26和第二空腔内，将一对车把27锁定在展开位置，当需要将车把27折叠时，摇动车把锁紧摇杆36至上极限位置，此时第二圆柱的轴线上移，高于第一圆柱的轴线，第二圆柱会将车把锁紧拉杆31压块顶起，使其上移，进而使车把锁紧拉杆压块32与盖板24间产生间隙，车把锁紧边盖29与车把折叠固定轴套28间的抵紧力减小，在人力作用下，可以克服车把27锁紧弹簧的弹性力，向两侧分别移动一对车把折叠固定轴套28，使一对车把定位钢珠30从第一空腔和第二空腔退出，此时一对车把27失去束缚，可向下旋转至折叠位置，当一对车把27旋转至折叠位置后，再将车把锁紧摇杆36摇至下极限位置，可将一对车把27锁定在折叠位置。The handlebars of the existing electric bicycles mostly adopt the 45° oblique axis folding method. One folding action can achieve compression in both the height and width directions, but the handlebars after folding are perpendicular to the center line of the body, and the volume after folding The scooter is still large, and the scooter mostly adopts the folding method of the handlebar crossbar and the vertical rod telescopic, but it takes two folding steps to complete. The folding process is relatively cumbersome. In this technical solution, when the handlebar 27 is in the unfolded Position, the handlebar locking rocker 36 is at the lower limit position, at this time the handlebar locking lever pressing block 32 is in a horizontal state, and the handlebar locking lever is pushed against the handlebar locking lever under the elastic force of a pair of handlebar locking springs 33 The pressing block 32 makes the handlebar locking rod pressing block 32 and the cover 24 have no gap, and a pair of handlebar positioning steel balls 30 are clamped in the first cavity and the upper groove 25, and the lower groove 26 and the second cavity , Lock a pair of handlebars 27 in the unfolded position. When you need to fold the handlebars 27, shake the handlebar locking rocker 36 to the upper limit position. At this time, the axis of the second cylinder moves up and is higher than the axis of the first cylinder. , The second cylinder will lift the handlebar locking lever 31 pressure block and move it upward, thereby creating a gap between the handlebar locking lever pressure block 32 and the cover plate 24, the handlebar locking side cover 29 and the handlebar The tightening force between the folding fixed bushing 28 is reduced. Under the action of manpower, the elastic force of the lock spring of the handlebar 27 can be overcome, and a pair of handlebar folding fixed bushings 28 can be moved to both sides to make a pair of handlebars The positioning steel ball 30 exits from the first cavity and the second cavity. At this time, the pair of handlebars 27 lose their restraint and can be rotated down to the folded position. When the pair of handlebars 27 are rotated to the folded position, the handlebars are locked again Rotating the rocker 36 to the lower limit position can lock the pair of handlebars 27 in the folded position.

在另一种技术方案中，所述的折叠电动车还包括立杆伸缩分总成，其包括：In another technical solution, the folding electric vehicle further includes a pole telescopic sub-assembly, which includes:

一对立杆37，一对立杆37的上端均与所述车把折叠轴23固接，每个立杆37内部沿轴向均开设有第二通孔，每个立杆37的下端均向下延伸一对弹性片，弹性片为具有一定弧度的面状结构，一对弹性片形成外胀开口；A pair of vertical rods 37. The upper ends of the pair of vertical rods 37 are fixed to the handlebar folding shaft 23. Each vertical rod 37 is provided with a second through hole in the axial direction, and the lower end of each vertical rod 37 is downward. Extend a pair of elastic sheets, the elastic sheets have a plane structure with a certain curvature, and a pair of elastic sheets form an external expansion opening;

两套立杆伸缩组件，每套立杆伸缩组件均包括传动钢丝38、立杆伸缩锁紧销39、立杆伸缩锁紧弹簧40，传动钢丝38的上端安装在所述车把锁紧轴35上，车把锁紧轴35的旋转带动传动钢丝38的收放，传动钢丝38穿过第二通孔，传动钢丝38的下端安装在立杆伸缩锁紧销39上，立杆伸缩锁紧销39自上而下包括杆部、块部，块部的外径大于杆部的外径，块部可以为圆台或圆锥状结构，立杆伸缩锁紧弹簧40套设在杆部上，立杆伸缩锁紧弹簧40的上端抵顶立杆37的底面、下端抵顶块部的顶面，块部的外周设有外滑动锥面，外滑动锥面为圆台状，外滑动锥面的外径自上而下逐渐减小；Two sets of vertical pole telescopic components, each of which includes a transmission wire 38, a vertical pole telescopic locking pin 39, and a vertical pole telescopic locking spring 40. The upper end of the transmission wire 38 is installed on the handlebar locking shaft 35 , The rotation of the handlebar lock shaft 35 drives the retracting and unwinding of the transmission wire 38, the transmission wire 38 passes through the second through hole, the lower end of the transmission wire 38 is installed on the vertical pole telescopic locking pin 39, the vertical pole telescopic locking pin 39 includes rod and block from top to bottom. The outer diameter of the block is larger than the outer diameter of the rod. The block can be a truncated cone or a conical structure. The upright telescopic locking spring 40 is sleeved on the upright. The upper end of the telescopic locking spring 40 abuts against the bottom surface of the upright rod 37 and the lower end against the top surface of the top block. The outer periphery of the block is provided with an outer sliding cone. The outer sliding cone is in the shape of a truncated cone. The outer diameter of the outer sliding cone is from Gradually decrease from top to bottom;

一对滑动套管41，每个滑动套管41的内部均设有与外滑动锥面配合的内滑动锥面，内滑动锥面为圆台状，内滑动锥面的内径自上而下逐渐减小，每个滑动套管41的外部均与一对弹性片可拆卸连接(可以通过卡扣的连接方 式实现二者联动)、且连接处位于滑动套管41设有内滑动锥面的部分，滑动套管41的变形带动一对弹性片胀开；A pair of sliding sleeves 41, each sliding sleeve 41 is provided with an inner sliding tapered surface that matches with the outer sliding tapered surface, the inner sliding tapered surface is in the shape of a truncated cone, and the inner diameter of the inner sliding tapered surface gradually decreases from top to bottom Small, the outside of each sliding sleeve 41 is detachably connected with a pair of elastic sheets (the two can be linked by a buckle connection), and the connection is located in the part of the sliding sleeve 41 where the inner sliding cone is provided. The deformation of the sliding sleeve 41 drives a pair of elastic pieces to expand;

一对固定套管42，固定套管42为具有收纳腔的结构，一对固定套管42的下端通过前叉结构轴承连接前轮轮毂；A pair of fixed sleeves 42, the fixed sleeve 42 is a structure with a receiving cavity, and the lower ends of the pair of fixed sleeves 42 are connected to the front wheel hub through a front fork structure bearing;

其中，当所述车把锁紧摇杆36转动至上极限位置时，传动钢丝38提升立杆伸缩锁紧销39至外滑动锥面脱离内滑动锥面，一对弹性片不受力，形成与立杆37外周尺寸一致的延伸面，立杆37、一对弹性片、滑动套管形成的联动结构可沿轴向自由滑动到固定套管内部，当所述车把锁紧摇杆36转动至下极限位置时，立杆伸缩锁紧弹簧40推动立杆伸缩锁紧销39至外滑动锥面伸入内滑动锥面，一对弹性片受外胀力，形成略大于立杆37外周尺寸的延伸面，联动结构的外尺寸大于固定套管的内径。Wherein, when the handlebar locking rocker 36 rotates to the upper limit position, the transmission wire 38 lifts the upright telescopic locking pin 39 until the outer sliding cone surface is separated from the inner sliding cone surface, and the pair of elastic pieces are not stressed, forming a and The extension surface of the vertical rod 37 with the same outer circumference, the linkage structure formed by the vertical rod 37, a pair of elastic sheets, and the sliding sleeve can freely slide into the fixed sleeve in the axial direction. When the handlebar locking rocker 36 rotates to At the lower limit position, the vertical pole telescopic locking spring 40 pushes the vertical pole telescopic locking pin 39 to the outer sliding cone surface to extend into the inner sliding cone surface, and a pair of elastic pieces are subjected to the external expansion force to form a size slightly larger than the outer circumference of the vertical rod 37 The extension surface, the outer dimension of the linkage structure is larger than the inner diameter of the fixed sleeve.

在这种技术方案中，将传动钢丝38锁紧在车把锁紧轴35上，当转动车把锁紧轴35松开车把27时，传动钢丝38同时被拉紧，传动钢丝38的另一端与立杆伸缩锁紧销39连接(固接连接或枢接均可，只要能实现联动即可)，在立杆伸缩锁紧弹簧40的共同作用下，拉动立杆伸缩锁紧销39往复运动，当立杆伸缩锁紧销39被拉起后，其两侧的外滑动锥面与滑动套管41的内滑动锥面脱离开，失去对一对弹性片定位外胀开口的胀紧力，此时向下推动立杆37，一对弹性片被挤压向内弹性变形，内滑动锥面和外滑动锥面脱离开，立杆37可以向下折叠缩短，反之立杆37会被锁紧无法上下移动。采用这种技术方案时，车把27和立杆37的折叠效果好，在进行车把27宽度折叠的同时也进行了高度折叠，折叠效率更高，一个步骤即可完成两个折叠动作，车把27和立杆37折叠更加快捷简便。In this technical solution, the transmission wire 38 is locked on the handlebar lock shaft 35. When the handlebar lock shaft 35 is turned to loosen the handlebar 27, the transmission wire 38 is tightened at the same time. One end is connected with the vertical pole telescopic locking pin 39 (fixed connection or pivotal connection, as long as the linkage can be realized), and the vertical pole telescopic locking pin 39 is pulled to reciprocate under the joint action of the vertical pole telescopic locking spring 40 When the vertical rod telescopic locking pin 39 is pulled up, the outer sliding cone surface on both sides of the sliding sleeve 41 separates from the inner sliding cone surface of the sliding sleeve 41, and the expansion force for positioning the outer expansion opening of the pair of elastic sheets is lost. At this time, the vertical rod 37 is pushed down, a pair of elastic pieces are squeezed inward and elastically deformed, the inner sliding cone surface and the outer sliding cone surface are separated, the vertical rod 37 can be folded down and shortened, otherwise the vertical rod 37 will be locked Can not move up and down tightly. When this technical solution is adopted, the folding effect of the handlebar 27 and the vertical rod 37 is good. The width of the handlebar 27 is folded and the height is folded at the same time. The folding efficiency is higher. Two folding actions can be completed in one step. Folding 27 and pole 37 is faster and easier.

在另一种技术方案中，所述的折叠电动车还包括：一对携带拖轮43和一个携带拖轮轴44，携带拖轮轴44固设在所述前叉折叠连杆12背向脚踏板的侧面下端，一对携带拖轮43对称套设在携带拖轮轴44的两端。折叠后利用前轮和一对携带拖轮43做直角立放，可以进一步减少占地空间，同时也可以使用一对携带拖轮43拖拉折叠电动车，便携性更高。[0083]这里说明的设备数量和处理规模是用来简化本发明的说明的。对本发明折叠电动车的应用、 修改和变化对本领域的技术人员来说是显而易见的。In another technical solution, the folding electric vehicle further includes: a pair of carrying tugs 43 and a carrying tug axle 44, and the carrying tug axle 44 is fixed on the front fork folding link 12 facing away from the pedal. At the lower end of the side, a pair of carrying tugs 43 are symmetrically sleeved on both ends of the carrying tug shaft 44. After folding, the front wheels and a pair of carrying tugs 43 can be used to stand at right angles, which can further reduce the floor space. At the same time, a pair of carrying tugs 43 can be used to tow the folding electric vehicle, which has higher portability. [0083] The number of equipment and processing scale described here are used to simplify the description of the present invention. The applications, modifications and changes to the foldable electric vehicle of the present invention are obvious to those skilled in the art.

尽管本发明的实施方案已公开如上，但其并不仅仅限于说明书和实施方式中所列运用，它完全可以被适用于各种适合本发明的领域，对于熟悉本领域的人员而言，可容易地实现另外的修改，因此在不背离权利要求及等同范围所限定的一般概念下，本发明并不限于特定的细节和这里示出与描述的图例。Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the description and embodiments. It can be applied to various fields suitable for the present invention. For those familiar with the field, it can be easily Therefore, without departing from the general concept defined by the claims and equivalent scope, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims (10)

1. 折叠电动车，包括前叉、脚踏板和车座支架，其特征在于，车座支架上部为中空结构，车座支架可绕脚踏板后端旋转，前叉可绕脚踏板前端旋转，当车座支架向前旋转至与脚踏板抵紧时，前叉向后旋转容纳在车座支架的中空部分且卡紧车座支架。A foldable electric vehicle includes a front fork, a pedal and a seat bracket, and is characterized in that the upper part of the seat bracket is a hollow structure, the seat bracket can rotate around the rear end of the pedal, and the front fork can rotate around the front end of the pedal. When the seat bracket rotates forward to abut against the foot pedal, the front fork rotates backward and is received in the hollow part of the seat bracket and clamps the seat bracket.
2. 如权利要求1所述的折叠电动车，其特征在于，包括后叉折叠分总成，其包括：The foldable electric vehicle according to claim 1, characterized by comprising a rear fork folding sub-assembly, which comprises:

   一对后叉折叠杆，一对后叉折叠杆对称设置在脚踏板两侧，一对后叉折叠杆的上部与车座支架固接，后叉折叠杆的下部具有第一延伸面，第一延伸面的径向截面为弓形，一对第一延伸面通过后叉折叠轴与脚踏板后端可旋转连接，后叉折叠杆上设有后叉折叠限位挡圈，后叉折叠限位挡圈高于第一延伸面，第一延伸面的弧面上设有径向长度自上而下依次递增的第一锥面，第一锥面高于所述后叉折叠轴；A pair of rear fork folding rods, a pair of rear fork folding rods are symmetrically arranged on both sides of the foot pedal, the upper part of the pair of rear fork folding rods are fixedly connected with the seat bracket, and the lower part of the rear fork folding rod has a first extension surface. The radial cross section of an extension surface is arcuate. A pair of first extension surfaces are rotatably connected with the rear end of the foot pedal through the rear fork folding shaft. The rear fork folding lever is provided with a rear fork folding limit stop ring, and the rear fork folding limit The retaining ring is higher than the first extension surface, the arc surface of the first extension surface is provided with a first tapered surface whose radial length increases sequentially from top to bottom, and the first tapered surface is higher than the rear fork folding shaft;

   一对后叉折叠锁杆，一对后叉折叠锁杆均套设在所述后叉折叠轴上且均与脚踏板后端固接，后叉折叠锁杆上部具有第二延伸面，第二延伸面与第一延伸面的接触面为平面，第二延伸面的弧面上设有径向长度自上而下依次递增的第二锥面，第二锥面高于所述后叉折叠轴；A pair of rear fork folding lock rods, a pair of rear fork folding lock rods are sleeved on the rear fork folding shaft and both fixed to the rear end of the foot pedal, the upper part of the rear fork folding lock rod has a second extension surface, The contact surface between the two extension surfaces and the first extension surface is a plane, the arc surface of the second extension surface is provided with a second tapered surface whose radial length increases sequentially from top to bottom, and the second tapered surface is higher than the rear fork folded axis;

   一对后叉折叠套管和套管连杆，一对后叉折叠套管分别对应套设在一对后叉折叠杆上，且后叉折叠套管套设后叉折叠限位挡圈，后叉折叠套管内壁沿径向设有限位块，限位块低于后叉折叠限位挡圈，所述套管连杆连接一对后叉折叠套管，形成用于提拉一对后叉折叠套管的持握部；A pair of rear fork folding sleeves and sleeve connecting rods, a pair of rear fork folding sleeves are correspondingly sleeved on a pair of rear fork folding rods, and the rear fork folding sleeves are sleeved with rear fork folding limit retaining rings. The inner wall of the fork folding sleeve is provided with a limit block along the radial direction. The limit block is lower than the rear fork folding limit stop ring. The sleeve connecting rod connects a pair of rear fork folding sleeves to form a pair of rear forks. Folding the grip part of the sleeve;

   一对套管复位弹簧，一对套管复位弹簧分别对应套设在一对后叉折叠杆上，套管复位弹簧的下端与限位块抵接、上端与后叉折叠限位挡圈抵接；A pair of sleeve return springs and a pair of sleeve return springs are correspondingly sleeved on a pair of rear fork folding rods. The lower end of the sleeve return spring abuts with the limit block, and the upper end abuts with the rear fork folding limit ring ；

   其中，当套管复位弹簧的弹性力使后叉折叠套管套设在第一延伸面和第二延伸面形成的圆柱结构外部时，第一锥面和第二锥面配合形成限制后叉折叠套管向下运动的阻碍，当套管复位弹簧被压缩至后叉折叠套管脱离第二延伸面时，后叉折叠杆可绕所述后叉折叠轴旋转。Wherein, when the elastic force of the sleeve return spring causes the rear fork folding sleeve to be sleeved outside the cylindrical structure formed by the first extension surface and the second extension surface, the first cone surface and the second cone surface cooperate to restrict the folding of the rear fork The downward movement of the sleeve is obstructed. When the sleeve return spring is compressed until the rear fork folding sleeve is separated from the second extension surface, the rear fork folding rod can rotate around the rear fork folding shaft.
3. 如权利要求2所述的折叠电动车，其特征在于，还包括前叉折叠分总成，其包括：The foldable electric vehicle according to claim 2, further comprising a front fork folding sub-assembly, which comprises:

   前叉折叠连杆，其倾斜设置在前叉和脚踏板前端之间，所述前叉折叠连杆的上端与前叉固接、下端通过前叉折叠轴与脚踏板前端可旋转连接，所述前叉折叠连杆朝向脚踏板的侧面下部开设有滑槽；The front fork folding link is arranged obliquely between the front fork and the front end of the foot pedal, the upper end of the front fork folding link is fixed to the front fork, and the lower end is rotatably connected with the front end of the foot pedal through the front fork folding shaft, The front fork folding link is provided with a sliding groove facing the lower part of the side of the foot pedal;

   前叉折叠滑块和前叉折叠限位销，所述前叉折叠滑块可滑动地设置在所述滑槽内，所述前叉折叠限位销穿设在所述前叉折叠滑块上且两端均延伸到所述前叉折叠滑块外部，所述前叉折叠限位销垂直所述前叉折叠滑块的滑动方向；The front fork folding slider and the front fork folding limit pin, the front fork folding slider is slidably arranged in the chute, and the front fork folding limit pin passes through the front fork folding slider And both ends extend to the outside of the front fork folding slider, and the front fork folding limit pin is perpendicular to the sliding direction of the front fork folding slider;

   滑块复位弹簧，其上端与所述前叉折叠连杆固接、下端与所述前叉折叠滑块固接，所述滑块复位弹簧的弹性力可驱动所述前叉折叠滑块在所述滑槽内滑动；Slider return spring, the upper end of which is fixedly connected with the front fork folding link, and the lower end is fixedly connected with the front fork folding slider. The elastic force of the slider return spring can drive the front fork folding slider at the Sliding in the chute;

   一对前叉折叠限位板，一对前叉折叠限位板对称设置在所述前叉折叠连杆下端的两侧，一对前叉折叠限位板均套设在所述前叉折叠轴上且均与脚踏板前端固接，前叉折叠限位板的顶部为高度沿靠近脚踏板的方向依次递减的弧形结构，且弧边边缘上开设有上限位缺口和下限位缺口，所述前叉折叠限位销的两端可卡设在一对上限位缺口或一对下限位缺口上；A pair of front fork folding limit plates, a pair of front fork folding limit plates are symmetrically arranged on both sides of the lower end of the front fork folding link, a pair of front fork folding limit plates are sleeved on the front fork folding shaft The upper part is fixedly connected to the front end of the pedal. The top of the front fork folding limit plate is an arc structure whose height decreases in the direction close to the pedal, and the upper limit gap and the lower limit gap are provided on the edge of the arc. The two ends of the front fork folding limit pin can be clamped on a pair of upper limit notches or a pair of lower limit notches;

   其中，当所述滑块复位弹簧的弹性力使所述前叉折叠限位销卡设在一对上限位缺口上时，前叉处于展开状态，当所述滑块复位弹簧的弹性力使所述前叉折叠限位销卡设在一对下限位缺口上时，前叉处于折叠状态。Wherein, when the elastic force of the slider return spring causes the front fork folding limit pin to be clamped on a pair of upper limit notches, the front fork is in an unfolded state, and when the elastic force of the slider return spring causes the When the front fork folding limit pin is clamped on a pair of lower limit notches, the front fork is in a folded state.
4. 如权利要求3所述的折叠电动车，其特征在于，所述滑槽的上部固设有凸块，所述滑块复位弹簧的上端与所述凸块固接，所述前叉折叠滑块上固接有圆柱状拉耳，拉耳中部开设有圆柱状通孔。The folding electric vehicle according to claim 3, wherein the upper part of the sliding groove is fixedly provided with a convex block, the upper end of the slider return spring is fixedly connected with the convex block, and the front fork folding slider A cylindrical pull ear is fixed on the upper part, and a cylindrical through hole is opened in the middle of the pull ear.
5. 如权利要求3所述的折叠电动车，其特征在于，上限位缺口高于脚踏板，上限位缺口的开口方向朝上，下限位缺口低于脚踏板，下限位缺口的开口方向朝向折叠电动车的后轮且与脚踏板平行，上限位缺口和下限位缺口均呈夹角为45°的类V形结构。The folding electric vehicle according to claim 3, wherein the upper limit gap is higher than the pedal, the opening direction of the upper limit gap is upward, the lower limit gap is lower than the pedal, and the opening direction of the lower limit gap faces the folding The rear wheel of the electric vehicle is parallel to the pedal, and the upper limit gap and the lower limit gap are both in a V-shaped structure with an angle of 45°.
6. 如权利要求2～5中任一项所述的折叠电动车，其特征在于，每个后叉折叠套管内限位块的数量为2个，2个限位块关于后叉折叠套管的轴线对称。The folding electric vehicle according to any one of claims 2 to 5, wherein the number of limit blocks in each rear fork folding sleeve is two, and the two limit blocks are related to the axis of the rear fork folding sleeve. symmetry.
7. 如权利要求6所述的折叠电动车，其特征在于，所述套管连杆为U形结构，U形两端分别与一对后叉折叠套管的侧壁对应固接。The folding electric vehicle according to claim 6, wherein the sleeve connecting rod has a U-shaped structure, and both ends of the U-shaped structure are respectively fixedly connected to the side walls of a pair of rear fork folding sleeves.
8. 如权利要求7所述的折叠电动车，其特征在于，还包括车把折叠分总成，其包括：The foldable electric bicycle according to claim 7, further comprising a handlebar folding sub-assembly, which comprises:

   车把折叠轴，其水平固设在前叉上端，且与折叠电动车的行进方向平行，所述车把折叠轴为两端敞口的圆筒状，所述车把折叠轴的后端设有盖板，所述车把折叠轴靠近前端的外壁上沿其轴向开设有上凹槽和下凹槽；The handlebar folding shaft is horizontally fixed on the upper end of the front fork and parallel to the direction of travel of the folding electric vehicle. The handlebar folding shaft is a cylindrical shape with open ends. The rear end of the handlebar folding shaft is provided With a cover, the outer wall of the handlebar folding shaft near the front end is provided with an upper groove and a lower groove along its axial direction;

   一对车把，车把的上端形成持握部、下端固接有车把折叠固定轴套，车把折叠固定轴套为圆环形，且一对车把折叠固定轴套拼接形成圆环形，一对车把折叠固定轴套一前一后地套设在所述车把折叠轴上，车把折叠固定轴套内壁对应所述上凹槽处设有第一限位缺口、对应所述下凹槽处设有第二限位缺口，第一限位缺口和第二限位缺口均位于一对车把折叠固定轴套接触面的边缘处，且一对第一限位缺口配合形成半球形第一空腔、一对第二限位缺口配合形成半球形第二空腔；A pair of handlebars, the upper end of the handlebar forms a grip, the lower end is fixedly connected with a handlebar folding fixed bushing, the handlebar folding fixing bushing is in a ring shape, and a pair of handlebar folding fixing bushings are spliced to form a ring shape , A pair of handlebar folding fixed shaft sleeves are sleeved on the handlebar folding shaft in tandem, and the inner wall of the handlebar folding fixed shaft sleeve is provided with a first limiting gap corresponding to the upper groove. The lower groove is provided with a second limit gap. The first limit gap and the second limit gap are both located at the edge of the contact surface of a pair of handlebar folding fixed sleeves, and a pair of first limit gaps cooperate to form a hemisphere A shaped first cavity and a pair of second limiting notches cooperate to form a hemispherical second cavity;

   车把锁紧组件，其包括：车把锁紧边盖、一对车把定位钢珠、车把锁紧拉杆、车把锁紧拉杆压块、一对车把锁紧弹簧、车把锁紧弹簧垫板、车把锁紧轴，所述车把锁紧边盖与远离所述盖板的车把折叠固定轴套前侧抵接，其中一个车把定位钢珠的上部收纳在所述第一空腔内、下部收纳在所述上凹槽内，另一个车把定位钢珠的上部收纳在所述下凹槽内、下部收纳在所述第二空腔内，所述车把锁紧拉杆和所述车把锁紧拉杆压块均为U形结构，所述车把锁紧拉杆和所述车把锁紧拉杆压块均竖直设置，且所述车把锁紧拉杆的开口端与所述车把锁紧拉杆压块的开口端对应可拆卸连接，所述车把锁紧拉杆的闭合端与所述车把锁紧边盖的内侧面铰接，所述车把锁紧拉杆在其所在的竖直面绕铰点旋转，所述车把锁紧弹簧垫板上开设有第一通孔，所述车把锁紧弹簧垫板通过第一通孔套设在所述车把锁紧拉杆的两直边上且侧壁与所述车把折叠轴的内壁固接，一 对车把锁紧弹簧分别对应套设在所述车把锁紧拉杆的两直边上，车把锁紧弹簧的一端与所述车把锁紧弹簧垫板抵接、另一端与所述车把锁紧拉杆压块抵接，所述车把锁紧轴包括两端的第一圆柱和位于两个第一圆柱间的第二圆柱，所述车把锁紧轴的第二圆柱水平穿设在所述车把锁紧拉杆压块两直边形成的空槽内，且两个第一圆柱水平伸出所述车把折叠轴，第一圆柱和第二圆柱的轴线平行但不重合，两个第一圆柱伸出所述车把折叠轴的部分固接有操纵其旋转的车把锁紧摇杆；Handlebar locking assembly, which includes: handlebar locking side cover, a pair of handlebar positioning steel balls, handlebar locking rod, handlebar locking rod compression block, a pair of handlebar locking springs, handlebar locking springs The backing plate, the handlebar locking shaft, the handlebar locking side cover abuts the front side of the handlebar foldable fixed shaft sleeve away from the cover plate, and the upper part of one of the handlebar positioning steel balls is accommodated in the first hollow The inner and lower parts of the cavity are housed in the upper groove, the upper part of the other handlebar positioning steel ball is housed in the lower groove, and the lower part is housed in the second cavity. The handlebar locks the lever and the The handlebar locking tie rod pressing block is U-shaped structure, the handlebar locking tie rod and the handlebar locking tie rod pressing block are both vertically arranged, and the open end of the handlebar locking tie rod is connected to the The open end of the handlebar locking lever pressing block is correspondingly detachably connected, the closed end of the handlebar locking lever is hinged with the inner side of the handlebar locking side cover, and the handlebar locking lever is located where it is. The vertical plane rotates around the hinge point, the handlebar locking spring pad is provided with a first through hole, and the handlebar locking spring pad is sleeved on the handlebar locking lever through the first through hole. On two straight sides and the side walls are fixedly connected to the inner wall of the handlebar folding shaft, a pair of handlebar lock springs are respectively sleeved on the two straight sides of the handlebar lock lever. The handlebar lock springs One end is in contact with the handlebar locking spring pad, and the other end is in contact with the handlebar locking lever compression block. The handlebar locking shaft includes a first cylinder at both ends and a first cylinder located between the two first cylinders. The second cylinder of the handlebar locking shaft horizontally penetrates the hollow groove formed by the two straight sides of the handlebar locking lever pressing block, and the two first cylinders extend horizontally from the car The axis of the folding shaft, the first cylinder and the second cylinder are parallel but not coincident, and the parts of the two first cylinders extending out of the handlebar folding shaft are fixedly connected with a handlebar locking rocker that controls its rotation;

   其中，第一圆柱和第二圆柱的轴线设置为：当所述车把锁紧摇杆转动至下极限位置时，Wherein, the axes of the first cylinder and the second cylinder are set to: when the handlebar locking rocker rotates to the lower limit position,

   一对车把锁紧弹簧抵顶所述车把锁紧拉杆压块至所述车把锁紧拉杆压块与所述盖板无间隙，一对车把定位钢珠分别对应卡设在所述第一空腔和所述上凹槽以及所述下凹槽和所述第二空腔内，限制一对车把的旋转，当所述车把锁紧摇杆转动至上极限位置时，第二圆柱带动所述车把锁紧拉杆压块上移至所述车把锁紧拉杆压块与所述盖板产生间隙，一对车把定位钢珠分别从对应的所述第一空腔和所述上凹槽以及所述下凹槽和所述第二空腔内退出，不妨碍一对车把的旋转。A pair of handlebar locking springs press against the handlebar locking lever until there is no gap between the handlebar locking lever compression block and the cover plate, and a pair of handlebar positioning steel balls are correspondingly clamped on the first A cavity and the upper groove and the lower groove and the second cavity restrict the rotation of a pair of handlebars. When the handlebar locking rocker rotates to the upper limit position, the second cylinder Drive the handlebar locking tie rod pressure block to move up to the gap between the handlebar locking tie rod pressure block and the cover plate, and a pair of handlebar positioning steel balls from the corresponding first cavity and the upper The groove, the lower groove and the second cavity withdraw from inside, without hindering the rotation of a pair of handlebars.
9. 如权利要求8所述的折叠电动车，其特征在于，还包括立杆伸缩分总成，其包括：The foldable electric vehicle according to claim 8, further comprising a vertical pole telescopic sub-assembly, which comprises:

   一对立杆，一对立杆的上端均与所述车把折叠轴固接，每个立杆内部沿轴向均开设有第二通孔，每个立杆的下端均向下延伸一对弹性片；A pair of vertical rods. The upper ends of the pair of vertical rods are fixed to the handlebar folding shaft. Each vertical rod is provided with a second through hole along the axial direction. The lower end of each vertical rod extends downward with a pair of elastic sheets. ；

   两套立杆伸缩组件，每套立杆伸缩组件均包括传动钢丝、立杆伸缩锁紧销、立杆伸缩锁紧弹簧，传动钢丝的上端安装在所述车把锁紧轴上，传动钢丝穿过第二通孔，传动钢丝的下端安装在立杆伸缩锁紧销上，立杆伸缩锁紧销自上而下包括杆部、块部，块部的外径大于杆部的外径，立杆伸缩锁紧弹簧套设在杆部上，立杆伸缩锁紧弹簧的上端抵顶立杆的底面、下端抵顶块部的顶面，块部的外周设有外滑动锥面；Two sets of vertical pole telescopic components, each of which includes a transmission wire, a vertical pole telescopic locking pin, and a vertical pole telescopic locking spring. The upper end of the transmission wire is installed on the handlebar locking shaft, and the transmission wire penetrates Through the second through hole, the lower end of the transmission wire is installed on the telescopic locking pin of the vertical pole. The telescopic locking pin of the vertical pole includes a rod and a block from top to bottom. The outer diameter of the block is larger than that of the rod. The rod telescopic locking spring is sleeved on the rod, the upper end of the telescopic locking spring of the vertical rod is against the bottom surface of the vertical rod, the lower end is against the top surface of the top block, and the outer periphery of the block is provided with an outer sliding cone;

   一对滑动套管，每个滑动套管的内部均设有与外滑动锥面配合的内滑动锥 面，每个滑动套管的外部均与一对弹性片可拆卸连接、且连接处位于滑动套管设有内滑动锥面的部分；A pair of sliding sleeves. The inside of each sliding sleeve is provided with an inner sliding cone that matches with the outer sliding cone. The outside of each sliding sleeve is detachably connected to a pair of elastic sheets, and the connection is located in the sliding The casing is provided with an inner sliding cone;

   一对固定套管，一对固定套管的下端通过前叉结构轴承连接前轮轮毂；A pair of fixed sleeves, the lower ends of a pair of fixed sleeves are connected to the front wheel hub through the front fork structure bearing;

   其中，当所述车把锁紧摇杆转动至上极限位置时，传动钢丝提升立杆伸缩锁紧销至外滑动锥面脱离内滑动锥面，一对弹性片不受力，立杆、一对弹性片、滑动套管形成的联动结构可沿轴向自由滑动到固定套管内部，当所述车把锁紧摇杆转动至下极限位置时，立杆伸缩锁紧弹簧推动立杆伸缩锁紧销至外滑动锥面伸入内滑动锥面，一对弹性片受外胀力，联动结构的外尺寸大于固定套管的内径。Wherein, when the handlebar locking rocker rotates to the upper limit position, the transmission wire lifts the telescopic locking pin of the vertical rod until the outer sliding cone surface is separated from the inner sliding cone surface, and the pair of elastic pieces are not stressed, and the vertical rod and the pair of The linkage structure formed by the elastic sheet and the sliding sleeve can slide freely into the fixed sleeve in the axial direction. When the handlebar locking rocker rotates to the lower limit position, the vertical pole telescopic locking spring pushes the vertical pole telescopic locking The pin extends from the outer sliding cone surface into the inner sliding cone surface, and a pair of elastic sheets receives the external expansion force. The outer size of the linkage structure is larger than the inner diameter of the fixed sleeve.
10. 如权利要求9所述的折叠电动车，其特征在于，还包括：一对携带拖轮和一个携带拖轮轴，携带拖轮轴固设在所述前叉折叠连杆背向脚踏板的侧面下端，一对携带拖轮对称套设在携带拖轮轴的两端。The foldable electric vehicle according to claim 9, further comprising: a pair of carrying tugs and a carrying tug axle, the carrying tug axle is fixed at the lower end of the side of the front fork folding link facing away from the pedal, A pair of carrying tugs are symmetrically sleeved on both ends of the carrying tug shaft.

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