201235247 六、發明說明： 【發明所屬之技術領域】 本發明係有關於-種電動車的結構，尤指能提升後輪的輪距 寬度之自由度，進而能提升電動車之行車安全性之電動車的結構。 【先前技術】 按、習知之電動車1，請參閱圖—、二所示，至少包括有： 車架11、後避震器12、後輪框架13、後輪14; 該車架11，前方樞設有轉向把手丄丄i，該轉向把手工工 '的下方接設有頭管112，該頭管112的下方樞設有前避震 器113該别避震器113固設有前輪1 14，該車架11後 端设有朝車體後方延設有後避震器12; 該後避震器12之後端設有後輪框架13; 該後輪框架13係為π字型之框架，其二側端分別設有後輪 接設部131，該後輪接設部！3 i可供後輪i 4拖設用； 該後輪14係為設有輪轂馬達i4i，該後輪丄4係藉由電 池B之電力來令輪穀馬達丨4丨作動，進而使電動車工行進。 另請配合圖二、三參閱，該後輪14包括有雙輪式後輪14 a及單輪式後輪14 b二種，不論是雙輪式後輪14 a或單輪式 後輪14 b之後輪i 4，其係以一固定軸1 5穿設於後輸工4 後’該固定轴15之二端再嵌設於後輪框架13的後輪操設部1 31上’並以一固定螺帽151螺設於固定軸15之二端，藉此 來令後輪14得以固定於後輪框架13上。 3 201235247 名知之電動車1藉由上逃方式雌可令後輪1 4穩固的固定 於後輪框架13上，但如圖二、三所示般，習知之電動料之後 輪1 4係被架設於後輪框架i 3所界定的_空制，亦即該後 輪14之外側係）丨①有後輪框架13，因此該後輪1 &的輪距寬 度會又到後輪框架13之限制，且後輪框架丨3佔據該電動車丄 後部的橫向寬度’而不利於該鶴車：的行車；另、如騎周知， 輪距越見對於行車時車輛的穩定性就越加的穩定，是以習知電動 車1藉由上述方式來將後輪14固定於後輪框架丄3上，會造成 後輪14輪距寬度的自由度受到嚴重的限制。 有4^¾知之電動車1之後輪14固定於後輪框架13的結 構,、有上述之缺失。因此，要如何開發出可增進後輪1 4輪距寬 度自由化之後輪14與後輪框架！3的連結結構，實為目前車輛 製造業者所亟待解決之課題。 【發明内容】 本發明所欲解決之課題，乃在克服f知電鱗後輪輪距寬度 受到後輪框架之_，喊法提升後輪輪距寬度自由化來增進行 車安全之缺失。 為此，本發明所使用之技術手段，乃在於提供-種電動車的 、’σ構’至4包括有車架、後避震器、後輪框架及後輪；該車架之 料管部後端向車體後方級設有—後轉，雜轉具有後避 震器連結H後輪_設有連結部、後輪接設部及樞接部；該 後避震器-端連接於車架之後車架的後避震器連結部，另一端連 4 201235247 接於該後輪购的連結部上；錢輪框架之樞接部係與車架之後 車架連接；該後輪設有輪轂馬達，且該後輪係接設於後輪框架之 後輪接設部上，其主要在於：該後輪之輪毅馬達設有一固定轴， 該後輪係藉由固定螺检來與固定軸連結，該固定軸朝該後輪框竿 之後輪接設部的方向側延設有固定部，顧定軸之固定部係穿設 於後輪框架之後輪接設部後間定_來螺設於固定敗固定部 上，藉此來令後輪被穩固的固定於該後輪框架上，藉此來令該後 輪的輪距之寬度之提升不再被後輪框架所關，而能提升後輪的 輪距寬度之自由度，進魏提升電鱗之行車安全性。 【實施方式】 ▲為使雜查員能更綠了解本發明之結構及所能達成之功 效，茲配合圖式說明如後： 首先，請先參_四、五所示，本發明之電鱗2，至少包 括有：車架3、後避震器4、後輪框架5、後輪6及外殼7 ; 該車架3，前方樞設有轉向把手3 i，該轉向把手3丄的下 _震器3 3固設有前輪3 4，該頭管3 2係被外殼7所包覆， 該車架3由頭管3 2向車體後方延伸有—供腳踏部7丄設置之水 平管部3 5，該水平管部3 5後端向車體後方另延設有一後車架 3 7，該後車架3 7朝後輪框架5方向設有後避震器連結部3 7 1 ’該後避震器連結部3 7工可供後避震器4連結用，·另該後車 架3 7向上延财二上升管部3 6，該二上升管部3 6之間設有 201235247 可供電池B容置之容室3 61，該容室3 β1L + 谷至J b1的上方設有供駕駛 人乘坐之座墊362; 該後避震器4 -端係連接於後車架3 7的後避震器連結部3 71上，該後避震H4的另-端則連接於後輪框架5的連結部$ .1上，藉由後避震器4之設置可消拜來自後輪6之震動，:增進 行車時的舒適性； a 該後輪框架5設有連結部5 χ、後輪接設部5 2及樞接部5 • 3，該後輪接設部5 2與樞接部5 3藉由支撐臂5 4來連接，該 連結部5 1係供後避震n 4連結用，該樞接部5 3係供後車^ 7連接用，該後輪接設部5 2具有穿孔5 2 2，藉此該後輪接設 部5 2可供後輪6固設用。 該後輪6係設有輪轂馬達61，該輪穀馬達6 i設有固定轴 8，該固定軸8朝後輪框架5之後輪接設部5 2的方向側延設有 固定部8 a ’該後輪6係藉由電池B之電力來令輪穀馬達6丄作 • 動’進而使本發明之電動車2行進。 本發明之實施’請參關五、六所示，圖式中係以雙輪式後 輪6 a (即具有二支支撐臂5 4)來舉例說明，本發明電動車2 之後輪6 (雙輪式後輪6 a)與後輪框架5的連結方式，該雙輪 式後輪6 a各自以固定軸8穿設於後輪6的輪轂馬達61上，並 藉由一C形扣環C套設於後輪6的輪框6 3之外軸承6 5上再 以一固定螺栓81螺設於固定軸8上，俾令該後輪6先與固定軸 8來形成連結，再將固定軸8由後輪6的另一側之輪框6 3、内 5 6 201235247 轴承62、C形扣環c及煞車組66穿出後輪6，使該煞車組6 6係位於後輪6與支撐臂54之間，而後該後輪6再各自以固定 轴8之固定部8 a由後輪框架5之後輪接設部5 2的外侧，向内 穿設於後輪框架5之後輪接設部5 2的穿孔5 21内，再藉由一 固定螺帽8 2來螺設於固定轴8之固定部8 a上，藉此來使後輪 6可以穩固的固定於後輪框架5上；另由於該後輪6係設於後輪 框架5之外侧，因此該後輪6之最外側僅係依靠固定螺栓81之 支承，因此為避免後輪6於行車時產生偏移，該後輪6可藉由外 轴承6 5與内軸承6 2處各設置之c形扣環c ,而可避免後輪6 於行車時產生偏移；同時為避免灰塵或地面水份進入輪框6 3 内，於輪框6 3外側軸孔6 31處設置防塵蓋6 4，以避免灰塵 或地面水份由軸孔6 31進入輪框6 3内而使外軸承6 5、輪轂 馬達61、固定軸8等構件之損壞。 次請參關七所示，當本發明之電動車2之後輪6與後輪框 架5的連結方式’顧於單輪式後輪6 b時，只須將該後輪框架 5改變成單臂式後輪框架5 a (即只有單-支撐臂5 4 )，同樣的 以固定軸8穿設於單輪式後輪6 b的輪轂馬達61上，並藉由一 C形扣環C套設於單輪式後輪6 b之外軸承6 5上，再以一固定 螺松81螺設於固定軸8上，俾令該單輪式後輪6 b先與固定轴 8來形成連結，再賴定軸8由單輪式後輪6 b料—側之輪框 63、内軸承6 2、C形扣環c及煞車組66穿出單輪式後輪6 b，使該煞車組6 6係位於單輪式後輪6匕與支撐臂5 4之間， 201235247 而後辑輪式後輪6 b再明妹8之m定部8 a由單臂式後輪 框架5 a之後輪接设部5 2的内側’向外穿設於單臂式後輪框架 5 a之後輪接設部52的穿孔52 i内，再藉由—固定螺帽82 來螺設_定軸8之固定部8 3上，藉此來使單輪式後輪6 W 以穩固的固定於單臂式後輪框架5 a上；另再請參酬八所示， «亥單’式後輪框# 5 a之後輪接設部5 2向内設置-連結座5 5丄該連結座5 5上設有複數個螺固孔5 5丄，該_孔5 5工 與早輪式後輪6 b之煞車組6 6上的鎖固孔6 6 2相對應，藉此 可藉由螺絲S穿設於螺固孔5 5 i後螺設於煞車組6 6的鎖固孔 6 6 1上’來令雜車組6 6可以獲得穩定的定位效果；藉由單 輪式後輪6 b崎於單臂式錄轉5 3上，藉此可使電動車2 之後部有狀，進而可使電鱗2之後雜件設置的自 由度更能自由化。201235247 VI. Description of the Invention: [Technical Field] The present invention relates to a structure of an electric vehicle, and more particularly to an electric motor capable of improving the degree of freedom of the wheel width of the rear wheel, thereby improving the driving safety of the electric vehicle. The structure of the car. [Prior Art] According to the conventional electric vehicle 1, as shown in Figs. 2 and 2, at least includes: a frame 11, a rear shock absorber 12, a rear wheel frame 13, and a rear wheel 14; the frame 11, front The steering handle 丄丄i is pivoted, and the head tube 112 is connected to the lower side of the manual worker. The front tube 112 is pivoted with a front shock absorber 113. The other shock absorber 113 is fixed with the front wheel 1 14 . The rear end of the frame 11 is provided with a rear shock absorber 12 extending toward the rear of the vehicle body; the rear end of the rear shock absorber 12 is provided with a rear wheel frame 13; the rear wheel frame 13 is a π-shaped frame. The two side ends are respectively provided with a rear wheel connecting portion 131, and the rear wheel connecting portion! 3 i can be used for the rear wheel i 4; the rear wheel 14 is provided with a hub motor i4i, which is operated by the power of the battery B to make the wheel motor 丨4 ,, thereby making the electric vehicle Work. Please refer to FIG. 2 and FIG. 3 together. The rear wheel 14 includes a two-wheel rear wheel 14 a and a single wheel rear wheel 14 b, whether it is a two-wheel rear wheel 14 a or a single wheel rear wheel 14 b. After the wheel i 4 is passed through the rear axle 4 with a fixed shaft 15 , the two ends of the fixed shaft 15 are embedded on the rear wheel operating portion 1 31 of the rear wheel frame 13 and A fixing nut 151 is screwed to both ends of the fixed shaft 15, whereby the rear wheel 14 is fixed to the rear wheel frame 13. 3 201235247 The famous electric vehicle 1 can be firmly fixed to the rear wheel frame 13 by means of the escape mode, but as shown in Figs. 2 and 3, the conventional electric material rear wheel 14 is erected. The _1, which is defined by the rear wheel frame i 3, that is, the outer side of the rear wheel 14 has a rear wheel frame 13, so that the wheel width of the rear wheel 1 & Restricted, and the rear wheel frame 丨3 occupies the lateral width of the rear portion of the electric rudder, which is not conducive to the driving of the crane car; another, as the rider knows, the more the track is more stable for the stability of the vehicle when driving. The conventional electric vehicle 1 is fixed to the rear wheel frame 丄3 by the above-described manner, and the degree of freedom of the wheel width of the rear wheel 14 is severely restricted. There is a structure in which the rear wheel 14 of the electric vehicle 1 is fixed to the rear wheel frame 13 with the above-mentioned missing. Therefore, how to develop the wheel 14 and rear wheel frame after the liberalization of the rear wheel 1 4 wheel width can be improved! The connection structure of 3 is a problem that the current vehicle manufacturers have to solve. SUMMARY OF THE INVENTION The object of the present invention is to overcome the problem that the rear wheel frame width is limited by the rear wheel frame, and the rear wheel track width is liberalized to increase the safety of the vehicle. To this end, the technical means used in the present invention is to provide an electric vehicle, the 'sigma structure' to 4 including a frame, a rear shock absorber, a rear wheel frame and a rear wheel; The rear end is provided with a rearward turn to the rear of the vehicle body, and the rear turn has a rear shock absorber connection H rear wheel _ with a connecting portion, a rear wheel connecting portion and a pivoting portion; the rear shock absorber end is connected to the vehicle The rear shock absorber connecting portion of the rear frame of the frame is connected to the connecting portion of the rear wheel by the other end 4 201235247; the pivoting portion of the money wheel frame is connected with the frame behind the frame; the rear wheel is provided with a wheel hub a motor, and the rear wheel train is connected to the rear wheel frame rear attachment portion, the main purpose of which is that the wheel motor of the rear wheel is provided with a fixed shaft, and the rear wheel is coupled to the fixed shaft by a fixed screw test. The fixing shaft extends to the rear side of the rear wheel frame 竿 in the direction of the wheel connecting portion, and the fixing portion of the fixed shaft is disposed through the rear wheel frame and the wheel connecting portion Fixing the fixed portion so that the rear wheel is firmly fixed to the rear wheel frame, thereby making the width of the rear wheel Lifting the rear wheel frame no longer be turned, but can enhance the degree of freedom of the track width of rear wheels, Wei enhance traffic safety into scale of electricity. [Embodiment] ▲ In order to make the interrogator more green to understand the structure of the present invention and the effect that can be achieved, the following description is in conjunction with the following: First, please refer to the four-fifth, the electric scale of the present invention. 2, at least including: a frame 3, a rear shock absorber 4, a rear wheel frame 5, a rear wheel 6 and a casing 7; the frame 3 is provided with a steering handle 3 i at the front, and the steering handle 3 丄The shock absorber 3 3 is fixed with a front wheel 34, which is covered by a casing 7, and the frame 3 is extended from the head pipe 3 2 toward the rear of the vehicle body - a horizontal pipe for the footrest 7 The rear portion of the horizontal pipe portion 35 is further provided with a rear frame 3 7 behind the vehicle body, and the rear frame 37 is provided with a rear shock absorber connecting portion 3 7 1 ' toward the rear wheel frame 5 The rear shock absorber connecting portion 3 is provided for the rear shock absorber 4 to be connected, and the rear frame 3 7 is extended upward by the second rising pipe portion 3 6, and the second rising pipe portion 36 is provided with 201235247. a chamber 3 61 for the battery B to be accommodated, and a seat cushion 362 for the driver to ride on the upper side of the chamber 3 β1L + valley to J b1; the rear shock absorber 4 - end is connected to the rear frame 3 7 rear shock absorber connecting portion 3 71, the The other end of the suspension H4 is connected to the joint portion $.1 of the rear wheel frame 5, and the rear shock absorber 4 can be used to eliminate the vibration from the rear wheel 6 to increase the comfort of the vehicle; The rear wheel frame 5 is provided with a connecting portion 5 χ, a rear wheel connecting portion 5 2 and a pivoting portion 5 • 3 , and the rear wheel connecting portion 5 2 and the pivoting portion 5 3 are connected by a support arm 54 . The connecting portion 5 1 is for connecting the rear shock absorber n 4 for connecting the rear vehicle 7 , and the rear wheel connecting portion 5 2 has a through hole 5 2 2 , whereby the rear wheel is connected The portion 52 can be used for fixing the rear wheel 6. The rear wheel 6 is provided with a hub motor 61 which is provided with a fixed shaft 8 which is provided with a fixing portion 8 a ' toward the direction of the rear wheel frame 5 and the rear wheel connecting portion 5 2 . The rear wheel 6 causes the turret motor 6 to move by the electric power of the battery B to further advance the electric vehicle 2 of the present invention. The implementation of the present invention is described in Chapters 5 and 6. In the figure, the two-wheel rear wheel 6 a (ie, having two support arms 5 4 ) is used as an example to illustrate the electric vehicle 2 of the present invention. The rear wheel 6 a) is coupled to the rear wheel frame 5, and the two-wheel rear wheel 6 a is respectively disposed on the hub motor 61 of the rear wheel 6 with a fixed shaft 8 and is supported by a C-shaped buckle C. The bearing 6 6 is sleeved on the bearing 6 of the rear wheel 6 and screwed to the fixed shaft 8 by a fixing bolt 81. The rear wheel 6 is firstly coupled with the fixed shaft 8 and then fixed. 8 The wheel frame 6 3, the inner 5 6 201235247 bearing 62, the C-shaped buckle c and the brake set 66 of the other side of the rear wheel 6 pass through the rear wheel 6, so that the brake set 6 6 is located at the rear wheel 6 and supported Between the arms 54 and then the rear wheels 6 are respectively fixed by the fixing portion 8 a of the fixed shaft 8 from the outer side of the rear wheel frame 5 rear wheel connecting portion 5 2 , and are inserted inwardly behind the rear wheel frame 5 and the wheel connecting portion The fixing hole 8 21 of the fixing shaft 8 is screwed on the fixing portion 8 a of the fixing shaft 8 by a fixing nut 8 2 , so that the rear wheel 6 can be firmly fixed to the rear wheel frame 5; Since the rear wheel 6 is provided outside the rear wheel frame 5 Therefore, the outermost side of the rear wheel 6 is only supported by the fixing bolt 81. Therefore, in order to prevent the rear wheel 6 from shifting during driving, the rear wheel 6 can be set by the outer bearing 65 and the inner bearing 62. The c-shaped clasp c can prevent the rear wheel 6 from shifting when driving; and in order to prevent dust or ground water from entering the wheel frame 63, a dust cover 6 is arranged at the outer shaft hole 6 31 of the wheel frame 63. 4. In order to prevent dust or ground water from entering the wheel frame 63 by the shaft hole 63, the outer bearing 615, the hub motor 61, the fixed shaft 8, and the like are damaged. As shown in the seventh paragraph, when the rear wheel 6 and the rear wheel frame 5 of the electric vehicle 2 of the present invention are connected in the manner of the single wheel rear wheel 6 b, the rear wheel frame 5 only needs to be changed into a single arm. The rear wheel frame 5 a (ie, only the single-support arm 5 4 ) is similarly disposed on the hub motor 61 of the single-wheel rear wheel 6 b with a fixed shaft 8 and is sleeved by a C-shaped buckle C On the bearing 65 of the single-wheel rear wheel 6b, a fixing screw 81 is screwed on the fixed shaft 8, so that the single-wheel rear wheel 6b is first connected with the fixed shaft 8, and then The slanted shaft 8 is formed by a single wheel rear wheel 6 b - the side wheel frame 63 , the inner bearing 6 2 , the C-shaped buckle c and the brake set 66 through the single wheel rear wheel 6 b , so that the brake set 6 6 It is located between the single wheel rear wheel 6匕 and the support arm 5 4 , 201235247 and then the wheel rear wheel 6 b and then the sister 8 8 part 8 a from the single arm rear wheel frame 5 a rear wheel connection The inner side of the inner portion of the rear axle frame 5 a is inserted into the through hole 52 i of the rear wheel frame 5 a , and then the fixing portion 8 3 of the fixed shaft 8 is screwed by the fixing nut 82 . In order to secure the single-wheel rear wheel 6 W to the one-arm rear wheel frame 5 a; another, please refer to the reward eight, «Hai single' type rear wheel frame # 5 a rear wheel connection part 5 2 inwardly set - connection seat 5 5 丄 the connection seat 5 5 is provided with a plurality of The screw hole 5 5 丄 corresponds to the locking hole 6 6 2 on the wheel set 6 6 of the early wheel type rear wheel 6 b, whereby the screw S can be threaded through the screw hole 5 5 i rear screw is set on the locking hole 6 6 1 of the brake group 6 6 to make the miscellaneous vehicle group 6 6 obtain stable positioning effect; with the single wheel rear wheel 6 b in the single arm type recording 5 3 , in this way, the rear part of the electric vehicle 2 can be shaped, and the degree of freedom of disassembly of the electric scale 2 can be further liberalized.
本發明之功效在於，藉由HJ定軸8穿設於後輪6後該後輪 6以固定軸8之岐部8 a來穿設於後輪轉5之後輪接設部5 2 =穿孔5 2 1内’並於後輪6外側端藉由峡螺栓8 1螺設於 士疋軸8之U8 a上，藉此來令該後輪6與固定軸8形成連 結’另於賴定軸8與後輪_ 5明定_ 8 2來螺設於固定 轴8上，藉此來令後輪6被穩固的固定於該後輪框架5上，藉由 上述的後輪6與後輪框架5的連結方式，可使該後輪6的輪贱 又的提料再被後輪_5所關，纽藉由後輪㈣輪距寬声 設計自由紅提升，糾能提升絲車2之行車安全性。X 201235247 綜上所述，本發_由上述之魏柄結構，骑能達成所 5斥求之目的與功效，應已符合·性及進錄之要件，爰依法提 出發明專利之申請，祈請貴審查員之詳鑑， 惠賜准予發明專利 之審定，至感得便。 【圖式簡單說明】 圖一係習知電動車之側視示意圖。 圖一係習知電動車雙輪式後輪與後輪框架立體圖。The effect of the present invention is that after the HJ fixed shaft 8 is passed through the rear wheel 6, the rear wheel 6 is passed through the crotch portion 8a of the fixed shaft 8 to the rear wheel turn 5 and the wheel joint portion 5 2 = the perforation 5 2 1 The inner portion is screwed to the U8 a of the girth shaft 8 by the girth bolt 8 1 at the outer end of the rear wheel 6, thereby forming the rear wheel 6 and the fixed shaft 8 to form a connection. The wheel _5 ding _ 8 2 is screwed on the fixed shaft 8, whereby the rear wheel 6 is firmly fixed to the rear wheel frame 5, and the above-mentioned rear wheel 6 and the rear wheel frame 5 are connected The rim of the rear wheel 6 can be further closed by the rear wheel _5, and the rear wheel (four) wheel width is designed to be freely red, and the vehicle can improve the driving safety of the wire car 2. X 201235247 In summary, this issue _ from the above-mentioned Wei handle structure, riding can achieve the purpose and effect of the 5 reprimands, should have met the requirements of sex and entry, 提出 filed an invention patent application, pray The detailed examination of your examiner, Hui Hui granted the examination of the invention patent, to the point of feeling. [Simple description of the drawings] Figure 1 is a side view of a conventional electric vehicle. Figure 1 is a perspective view of a conventional two-wheel rear wheel and rear wheel frame of an electric vehicle.
圖三習知電動車單輪式後輪與後輪框架剖視圖。 圖四係本發明電動車之側視示意圖。 圖五係本發明電動車雙輪式後輪與後輪框架分解圖。 圖六係本發明電動車雙輪式後輪與後輪框架部分剖視圖。 圖七係本發明電動車單輪式後輪與後輪框架立體分解圖。 圖八係圖七之另一實施例。 【主要元件符號說明】Figure 3 is a cross-sectional view of a conventional wheeled rear wheel and rear wheel frame of an electric vehicle. Figure 4 is a side elevational view of the electric vehicle of the present invention. Figure 5 is an exploded view of the two-wheel rear wheel and rear wheel frame of the electric vehicle of the present invention. Figure 6 is a partial cross-sectional view of the two-wheel rear wheel and rear wheel frame of the electric vehicle of the present invention. Figure 7 is a perspective exploded view of the single wheel rear wheel and rear wheel frame of the electric vehicle of the present invention. Figure 8 is another embodiment of Figure 7. [Main component symbol description]
1電動車 1 1車架 111轉向把手 1 1 2頭管 113前避震器 1 1 4前輪 12後避震器 13後輪框架 131後輪接設部 1 4後輪 14 a雙輪式後輪 141輪轂馬達 14 b單輪式後輪 201235247 2電動車 3車架 4後避震器 5後輪框架 6後輪 7外殼 8固定軸 1 5固定軸 31轉向把手 3 3前避震器 35水平管部 3 6上升管部 3 6 2座墊 3 7後車架 5 a單臂式後輪框架 5 1連結部 5 2後輪接設部 5 3柩接部 5 4支撐臂 5 5連結座 6 a雙輪式後輪 61輪轂馬達 6 3輪框 6 4防塵蓋 6 6煞車組 7 1腳踏部 81固定螺栓 151固定螺帽 3 2頭管 3 4前輪 3 6 1容室 3 71後避震器連結部 5 2 1穿孔 5 51螺固孔 6 b單輪式後輪 6 2内轴承6 3 1軸孔 6 5外軸承 6 61鎖固孔 8 2固定螺帽 201235247 8 a固定部 C C形扣環 B電池 S螺絲1 electric car 1 1 frame 111 steering handle 1 1 2 head pipe 113 front shock absorber 1 1 4 front wheel 12 rear shock absorber 13 rear wheel frame 131 rear wheel connecting part 1 4 rear wheel 14 a double wheel rear wheel 141 wheel hub motor 14 b single wheel rear wheel 201235247 2 electric car 3 frame 4 rear shock absorber 5 rear wheel frame 6 rear wheel 7 outer casing 8 fixed shaft 1 5 fixed shaft 31 steering handle 3 3 front shock absorber 35 horizontal tube Part 3 6 riser pipe 3 6 2 seat cushion 3 7 rear frame 5 a single arm rear wheel frame 5 1 joint portion 5 2 rear wheel joint portion 5 3 joint portion 5 4 support arm 5 5 joint seat 6 a Two-wheel rear wheel 61 hub motor 6 3 wheel frame 6 4 dust cover 6 6 煞 car set 7 1 foot part 81 fixing bolt 151 fixing nut 3 2 head tube 3 4 front wheel 3 6 1 chamber 3 71 rear shock absorber Joint 5 2 1 perforation 5 51 screw hole 6 b single wheel rear wheel 6 2 inner bearing 6 3 1 shaft hole 6 5 outer bearing 6 61 locking hole 8 2 fixing nut 201235247 8 a fixing part CC ring B battery S screw
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