M378123 五、新型說明： 【新型所屬之技術領域】 :創作係有關於-種自行車之花轂結構，尤指一種能切換騎 乘狀態之「自行車後花轂棘輪作誠_結構」，藉由控制環之位 移切換’即能配合騎乘者之需求而快速的婦花轂殼與齒盤組之 連動關係，俾以增加其實用性者。 【先前技術】 • 按，一般常見之自行車皆裝設有花毅結構，並以花敎結制 成單向帶動之效果，藉以防止車輪逆向帶動腳踏板，使騎乘自行 車更為順暢’而相反的於特技用自行車，則需要能同步帶動車輪 產生正轉與反轉動作，又該常見之特技用自行車齡於花數處^ 接固定有齒盤，即能形成_板之直接帶動，然而，钟技用自 行車僅能提供雙向㈣之效果，將糾於—般的騎乘使用，使其 實用性大·te降低’是故’有業者針對關聊發有雙齒盤之花較 ,結構，如第6圖所示，其花穀⑽之—端固定有固定齒盤⑸）， 又另一端配合棘齒套（52)、棘齒（53)及鎖固件（54)，而連接有一 具斜齒面（551)之活動齒盤(55) ’當欲進行普通縣時，係以腳踏 板帶動活動齒盤(55)產生單向連動之效果，又當欲進行特技表演 時’需將車輪連同花穀(5〇)拆下，並於進行翻轉車輪後再將車 輪連同花較(50)鎖設回車架，此時腳踏板即能相對帶動固定齒盤 (51)，藉以形成雙向帶動之效果，故詳觀上述習知結構不難發覺 其尚存有些許不足之處，其自行車於一般騎乘狀態變換成特技用 騎乘狀騎，麵要將飯車輪連喊傭下，並於翻轉車輪後 再進行减，該更麵定齒盤⑸）與活減盤⑽之動作係過於 複雜’將造成制上之不便，即降低其實用性者。 有鑑於此’創作人本於多年從事細產品之製造開發與設計 經驗’針對上叙目標’詳加設計鱗慎評估後 ，終得一確具實 用性之本創作。 【新型内容】 欲解決之技術問題點： 習知之-種雙齒盤之花數結構，其自行車於—般騎乘狀態變 換成特技㈣餘態時’係需要將整組車輪連同花轂拆下，並於 翻轉車輪後再進行組裝’該更換蚊齒触活储盤之動作係過 於複雜，將造成使用上之不便，即降低其實用性者。 解決問題之技術特點： 一種自行車後花轂棘輪作動或鎖固結構，其包括：一花轂殼、 一控制環、一齒盤組及一連動件所組合而成，一花轂殼開設有容 置空間並貫穿樞設有心軸，且容置空間底部固定有一斜齒環，並 於斜齒環外侧端環狀開設有複數個凹陷槽，且於凹陷槽處卡設有 一限位件，該限位件係為耐磨耗之金屬材料所製成，且限位件位 於凹陷槽處形成有同步凹槽，一控制環係設置於容置空間内，並 於向外凸設之環體處開設有螺孔’又該控制環配合凹陷槽軸向凸 設有等量之同步凸塊’另於控制環内壁處朝中央凸設有複數個滑 動凸塊’該滑動凸塊處貫穿有通孔’並於通孔處依序容設有滾珠、 M378123M378123 V. New type description: [New technical field]: The creative department has a flower hub structure for bicycles, especially a kind of "cycling hub ratcheting _ structure" that can switch the riding state, by controlling The displacement of the ring can be used to match the needs of the rider and the fast relationship between the hub and the toothed disc set, so as to increase its practicality. [Prior Art] • Press, the common bicycles are equipped with a flower-like structure, and the effect of the one-way driving is made by the flower shackles, so as to prevent the wheels from rotating the pedals backwards, so that the riding bicycles are smoother. On the contrary, in the bicycle for stunts, it is necessary to synchronously drive the wheels to generate forward and reverse movements, and the common stunt bicycles are fixed in the number of places, and the sprocket can be directly driven. The bicycle with the clock can only provide the effect of two-way (four), and it will be used in the general riding, so that it is practical and large, and the 'te is reduced'. Therefore, the industry has a double-toothed flower for the Guanzhong. As shown in Fig. 6, the flower valley (10) has a fixed toothed disc (5) fixed at its end, and the other end is fitted with a ratchet sleeve (52), a ratchet (53) and a lock (54), and a connection is provided. The movable sprocket (55) of the helical tooth surface (551) 'When the ordinary county is to be used, the movable sprocket (55) is driven by the pedal to produce a one-way linkage effect, and when performing a stunt performance, The wheel is removed along with the flower valley (5〇), and the car is turned over after the wheel is turned over. Together with the flower (50) lock back to the frame, the pedal can simultaneously drive the fixed toothed disc (51), thereby forming the effect of two-way driving, so it is not difficult to find out that the above-mentioned conventional structure is still a little bit Insufficient, the bicycle is converted into a stunt rider in the general riding state, and the rice wheel is even called to be commissioned, and then the wheel is turned down after the wheel is turned over. The face is fixed (6) and the live reduction The action of the disk (10) is too complicated 'will cause inconvenience, that is, reduce its practicability. In view of the fact that this creator has been engaged in the manufacturing development and design experience of fine products for many years, and has carefully evaluated the design of the above-mentioned target, it has finally achieved practical use. [New content] The technical problem to be solved: The well-known structure of the double-toothed disc, the bicycle is transformed into a stunt in the general riding state (4). The system needs to remove the whole set of wheels together with the flower hub. And after the wheel is turned over, the assembly is replaced. 'The action of replacing the mosquito tooth to touch the storage tray is too complicated, which will cause inconvenience in use, that is, reduce its practicability. Technical features of the problem: A bicycle rear hub ratcheting or locking structure, comprising: a flower hub shell, a control ring, a toothed disc set and a linkage member, and a flower hub shell is provided with a capacity a space is disposed through the pivoting shaft, and a helical ring is fixed at the bottom of the accommodating space, and a plurality of concave grooves are annularly opened at an outer end of the helical ring, and a limiting member is stuck at the concave groove. The position piece is made of wear-resistant metal material, and the limiting piece is formed with a synchronous groove at the recessed groove, and a control ring system is disposed in the accommodating space, and is opened at the outwardly protruding ring body There is a screw hole', and the control ring is provided with an equal amount of synchronous protrusions in the axial direction of the recessed groove. Further, a plurality of sliding protrusions are protruded toward the center of the inner wall of the control ring, and a through hole is penetrated through the sliding protrusion. And the ball is arranged in the through hole, M378123
彈性件及固定件，-齒盤組處係能固定有複數片之齒盤該齒盤 _於齒減有穿孔，另由1凸設之延倾及棘齒段插設 於合置工間中’且延伸段係位於控觸處並配合滑動凸塊凹設有 滑槽，而賴_設有第-純料二滑孔，餘制環之滾珠係 文彈性件之猶而向内抵向滑槽，並能於第—滑孔與第二滑孔之 間&擇収’又該棘錢處樞設有赫，並以肺向外齒合於斜 齒環處，又齒盤組於棘齒段中容設有軸套，該軸套之兩端係分別 了頁設於齒触端與絲殼端之軸猶，藉啸繼她與花穀殼 之間距’另該越組之滑槽數量係與㈣狀滑動凸塊相同，而 控制環之同步凸塊數量係與綠殼之凹陷槽數量相同，—連動件 係穿設有複數個螺栓，且於螺栓處套設有間隔管，又該間隔管皆 穿過齒盤之訊’動鎖設於控繼之螺孔處。 對照先前技術之功效： 令控制環之同步凸論人花餘端之时凸_，此時齒盤 聲組不論正轉或反轉時’齒盤组與花穀殼直接由控制環形成連動， 而能帶動車輪產生正、反轉動作，即能進行—般騎乘狀態所無法 達到之效果，藉此配合騎乘者之絲而能快速的切換花轂殼與齒 盤組之連動關係，俾以增加其實用性者。 【實施方式】 為使貴審查委員對本創作之目的、特徵及功效能夠有更進 -步之瞭解與認識’以下兹雜合【圖式簡單說明】料如后： 先凊由第1圖與第2圖所示觀之，一種自行車後花轂棘輪作 M378123 動或鎖固結構’其包括：一花轂殼（10)、一控制環(20)、一齒盤 組（30)及一連動件（40)所組合而成，一花轂殼（1〇)開設有容置空 間（11)並貫穿樞設有心軸（12)，且容置空間（π)底部固定有一斜 齒環（13)，並於斜齒環（13)外侧端環狀開設有複數個凹陷槽 (14)，且於凹陷槽（14)處卡設有一限位件（15)，該限位件（15)係 為而ί磨耗之金屬材料所製成，且限位件（15)位於凹陷槽（14)處形 成有同步凹槽（151)，一控制環(20)係設置於容置空間（11)内，並 •於向外凸設之環體(21)處開設有螺孔(211)，又該控制環(20)配合 凹陷槽（14)軸向凸設有等量之同步凸塊(22)，另於控制環（2〇)内 壁處朝中央凸設有複數個滑動凸塊(23)，該滑動凸塊(23)處貫穿 有通孔（24)，並於通孔（24)處依序容設有滾珠（25)、彈性件（26) 及固定件⑽，-鐘組⑽)處係能固定有複數片之齒盤(31)， 該齒盤組(30)係於齒盤（31)處開設有穿孔(311)，另由一端凸設之 延伸^又(32)及棘齒段(33)插設於容置空間（11)中，且延伸段(32) —係位於控制環(20)處並配合滑動凸塊(23)凹設有滑槽（321)，而滑 槽(321)内開設有第-滑孔(322)與第二滑孔(323)，使控制環(20) 之/袞珠(25)係*5：彈性件（26)之頂撐而向内抵向滑槽（mi)，並能於 第-滑孔(322)與第二滑孔(323)之間選擇滑設，又該棘齿段(33) 處搞設有棘齒（331)，並以棘齒（331)向外齒合於斜齒環⑽處， 又齒盤組(30)於棘齒段(33)中容設有軸套(34)，該軸套⑽之兩 端係分別頂&於齒盤組(3G)端與花穀殼(⑻端之軸承(測）（1〇1) 處（凊由第3圖所不）’藉以控制齒盤組⑽與花穀殼⑽)之間距， M378123 另該齒盤組(30)之滑槽（321)數量係與控制環(20)之滑動凸塊(23) 相同，而控制環(20)之同步凸塊(22)數量係與花轂殼（10)之凹陷 槽（14)數量相同’一連動件（4〇)係穿設有複數個螺栓(41)，且於 螺栓(41)處套設有間隔管（42)，又該間隔管（42)皆穿過齒盤（31) 之穿孔(311)，並由螺栓(41)鎖設於控制環(2〇)之螺孔(211)處。 其結構之組合，再請由第2、3圖所示觀之，其花轂殼（1〇)於 谷置空間（11)内間隔軸承（1〇1)而穿設有心軸（12)，又於容置空間 • (11)底端固定有斜齒環（13)，另以一限位件（15)壓設於花轂殼（1〇) 之谷置空間（11)中，並以同步凹槽（151)配合凹陷槽（μ)形成固 定，藉此利用具耐磨耗之限位件（15)形成對凹陷槽（μ)之保護， 一控制環（20)係於通孔（24)内依序裝設有滾珠（25)及彈性件 (26)，並於彈性件（26)外端鎖設有固定件（27)，藉以將滾珠(25) 壓迫於控制環（20)之内壁端，又該控制環（2〇)係置入於花轂殼（10) 之容置空間（11)中並向外凸設有環體（21)，另以同步凸塊(22)滑 #設於限位件（丨5)之同步凹槽（151)中，一齒盤組（30)係以延伸段 (32)與棘齒段(33)插設於容置空間（11)中，並以延伸段(32)設置 於控制環(20)内端，使控制環(20)之滑動凸塊(23)向内滑設於滑 槽（321)中，此時控制環（20)端之滾珠(25)係能選擇容置於滑槽 (321)内之第一滑孔(322)與第二滑孔(323)，另棘齒段(33)則設置 於斜齒環（13)處，並由棘齒（331)直接與斜齒環（13)呈齒合狀，最 後於齒盤（31)外端設置有連動件(40)，該連動件(4〇)係以螺栓(41) 配合間隔管（42)穿過齒盤（31)之穿孔(311)，並鎖設於控制環(20) 7 M378123 之螺孔(211)處，藉以形成連動件(40)與控制環（2〇)之同步。 其實際使狀情況’復請由第4、5圖配合第2圖所示觀之， 本創作係以心軸（12)固定於自行車之後又處（圖未標示），且花轂 咸⑽係套設於心軸（12)處並用以連接車輪，另齒盤組⑽）亦套 接於心軸（12)並以棘齒段（33)置入花轂殼（1〇)之容置空間（ιι) •中，又以齒盤(31)配合鏈條連接腳踏板，於一般自行車進行騎乘 時’該控制環(20)係呈外移狀而令同步凸塊(22)未插設於花穀殼 #⑽端之同步凹槽⑽）中，另滑動凸塊⑽位於齒盤組⑽之滑 槽（321)中，且滾珠（25)受彈性件（26)之壓迫而定位於第二滑孔 (323)處，當齒盤組(30)正轉時，該齒盤組(3〇)係以棘齒⑽）直 接齒合於斜解⑽’藉以形缝盤組⑽與花穀殼⑽)之同步 轉動，又當齒盤組(30)反轉時’利用棘齒（331)之偏擺方向與斜齒 環(13)之傾斜方向’使棘齒(331)係無法與斜齿環(13)形成齒合連 動’藉此形成反轉時之空轉，另於自行車進行特技表演時，係將 ，連動件⑽向鐘⑻端推動，使連動件⑽推動控制環(2〇)靠 .向斜齒環（13)端，令控制環⑽之同步巴塊⑽插入花穀殼（1〇) 端之同步凸塊(22)内，同時，控制環⑽之滾珠(25)滑入第一滑 孔(322)中’即形成結合狀態下之定位效果，此時齒盤組⑽不論 正轉或反轉時’該同步凸塊(⑵皆容設於同步凹槽⑽），使齒盤 組(30)與花穀殼⑽直接由控制環⑽形成連動，而能帶動車輪 產生正、反轉動作’即能進行—般騎乘鴻所無法達到之效果， 藉此配合騎乘者之需求而能快速_換花穀殼⑽與齒盤組⑽ 之連動關係’俾以增加其實用性者。 综上所述’本創作確實已達突破性之結構設計，而I有改声 之創作内容’ _又_達到產社之_性與進步性且糊 作未見於任何· ’亦具新雜，t符合專觸目條之規定， 爱依法提出新型專射請，懇請鈞局審查委員_合法專利 權，至為感禱。 唯以上所述者，僅為本創作之—較佳實施例而已，當不能以 之限定本創作實叙翻；即大凡依本_申請專概圍所作之 均等變化與修飾，皆應仍屬本創作專利涵蓋之範圍内。 M378123 【圖式簡單說明】 第1圖：係本創作之立體組合圖。 第2圖：係本創作之立體分解圖。 第3圖：係本創作之剖視圖。 第4圖：係本創作之控制環於未作動狀態之示意圖。 第5圖：係本創作之控制環於作動狀態之示意圖。 第6圖：係習知之立體分解圖。 【主要元件符號說明】 本創作部份： 花穀殼--- -(10) 軸承 ——（101) 容置空間一一 -(11) 心轴 —— (12) 斜齒環--- 一 (13) 凹陷槽-- — — (14) 限位件--- -(15) 同步凹槽一 --(151) 控制環--- -(20) 環體--- --(21) 螺孔---- -(211) 同步凸塊一 --(22) 滑動凸塊-- -(23) 通孔--- —— (24) 滚珠 -(25) 彈性件-- --(26) 固定件--- -(27) 齒盤組--- -(30) 軸承 ——(301) isl盤 -(31) 穿孔--- ——(311) 延伸段--- -(32) 滑槽--- ——（321) -(323) M378123 第一滑孔一 ——(322) 第二滑孔-- 棘齒段-- —— (33) 棘齒---- 軸套 --(34) 連動件--- 螺栓--- ——(41) 間隔管--- 習知部份： 化毅 --(50) 固定齒盤-- 棘齒套-- --(52) 棘齒------ 鎖固件-- --(54) 活動齒盤-- 斜齒面-- --(551) -(331) -(40) -(42) -(51) -(53) -(55)The elastic member and the fixing member, the toothed disc group can be fixed with a plurality of toothed discs. The toothed disc has a perforation in the tooth, and the extended tilting and the ratcheting section of the 1 protruding portion are inserted in the jointing workshop. 'And the extension section is located at the control point and is provided with a sliding groove corresponding to the sliding protrusion, and the Lai_ is provided with a first-purity two-slide hole, and the ball-shaped elastic member of the remaining ring is pressed inwardly. a groove, and can be between the first slide hole and the second slide hole & 'receive' and the spine is pivoted with He, and the lung is externally geared to the bevel ring, and the tooth plate is set to the spine A sleeve is arranged in the tooth segment, and the two ends of the sleeve are respectively arranged on the axis of the tooth contact end and the end of the wire shell, and the distance between the groove and the flower chaff is followed by the number of the chute of the other group. The number of the synchronous bumps of the control ring is the same as the number of the recessed grooves of the green shell. The linkage member is provided with a plurality of bolts, and the spacer is sleeved at the bolt, and the interval is The tube passes through the toothed disc and the 'moving lock is set at the screw hole of the control. Compared with the effect of the prior art: Let the synchronization of the control loop be convex and convex when the remaining end of the control ring is _, at this time, the sprocket group and the flower chaff are directly linked by the control ring, whether the sprocket group is rotated or reversed. It can drive the wheel to produce positive and negative movements, which can achieve the effect that the riding state can not achieve, so as to match the rider's wire and quickly switch the linkage relationship between the hub shell and the toothed disc set, To increase their practicality. [Embodiment] In order to enable your review committee to have a more in-depth understanding and understanding of the purpose, characteristics and efficacy of this creation, the following is a summary of the following: 2, a bicycle rear hub ratchet for M378123 moving or locking structure' includes: a hub shell (10), a control ring (20), a toothed disc set (30) and a linkage (40) is assembled, a flower hub shell (1 〇) is provided with an accommodating space (11) and a mandrel (12) is pivoted therethrough, and a slant tooth ring (13) is fixed at the bottom of the accommodating space (π). And a plurality of recessed grooves (14) are annularly opened at an outer end of the helical ring (13), and a limiting member (15) is disposed at the recessed groove (14), and the limiting member (15) is The θ wear metal material is formed, and the limiting member (15) is formed with a synchronous groove (151) at the recessed groove (14), and a control ring (20) is disposed in the accommodating space (11). And a screw hole (211) is opened at the outwardly protruding ring body (21), and the control ring (20) is symmetrically provided with an equal amount of synchronous bumps (22) in cooperation with the recessed groove (14). Control loop 2〇) A plurality of sliding lugs (23) are protruded toward the center of the inner wall, and the through holes (24) are penetrated through the sliding protrusions (23), and balls are sequentially arranged at the through holes (24) ( 25), the elastic member (26) and the fixing member (10), the bell group (10) are fixed with a plurality of toothed discs (31), and the toothed disc group (30) is perforated at the toothed disc (31) (311), the extension (32) and the ratchet segment (33) protruding from one end are inserted into the accommodating space (11), and the extension (32) is located at the control ring (20) The sliding protrusion (23) is concavely provided with a sliding slot (321), and the sliding slot (321) is provided with a first sliding hole (322) and a second sliding hole (323) to enable the control ring (20) Bead (25) is *5: the top of the elastic member (26) is inwardly abutted against the chute (mi), and can be selectively arranged between the first sliding hole (322) and the second sliding hole (323) And the ratchet segment (33) is provided with a ratchet (331), and is externally toothed to the helical ring (10) with a ratchet (331), and the toothed disk set (30) is at the ratchet segment (33) The middle cover is provided with a bushing (34), and the two ends of the bushing (10) are respectively at the top of the toothed disc set (3G) and the flower chaff (the bearing of the (8) end (measured) (1〇1) (凊 not by Figure 3. "By controlling the distance between the sprocket set (10) and the flower husk (10), M378123 and the number of chutes (321) of the sprocket set (30) are the same as the sliding projections (23) of the control ring (20), and The number of the synchronous bumps (22) of the control ring (20) is the same as the number of the recessed grooves (14) of the hub (10). A linkage (4 turns) is provided with a plurality of bolts (41), and The spacer (42) is sleeved at the bolt (41), and the spacer tube (42) passes through the through hole (311) of the toothed disc (31) and is locked by the bolt (41) to the control ring (2〇) At the screw hole (211). The combination of the structures, as shown in Figures 2 and 3, is such that the hub (1〇) is provided with a mandrel (12) in the valley space (11) with a spacer bearing (1〇1). In the accommodating space, (11) a helical ring (13) is fixed at the bottom end, and a limiting member (15) is pressed into the valley space (11) of the hub (1 〇), and The synchronization groove (151) is fixed with the recessed groove (μ), thereby forming the protection of the depressed groove (μ) by using the wear-resistant limiting member (15), and the control ring (20) is fastened to the through hole ( 24) The ball (25) and the elastic member (26) are sequentially arranged, and a fixing member (27) is locked on the outer end of the elastic member (26), thereby pressing the ball (25) against the control ring (20). The inner wall end, the control ring (2〇) is placed in the accommodating space (11) of the hub shell (10) and protrudes outwardly from the ring body (21), and the synchronous bump (22) Slide # is disposed in the synchronous groove (151) of the limiting member (丨5), and a toothed disk group (30) is inserted into the accommodating space (11) by the extending portion (32) and the ratchet segment (33). Middle, and is disposed at the inner end of the control ring (20) with an extension (32), so that the sliding protrusion (23) of the control ring (20) slides inward In the chute (321), the ball (25) at the end of the control ring (20) can select the first sliding hole (322) and the second sliding hole (323) that are accommodated in the sliding groove (321), and The ratchet section (33) is disposed at the helical ring (13), and is directly meshed with the helical ring (13) by the ratchet (331), and finally the linkage is disposed at the outer end of the toothed disc (31). (40), the linking member (4〇) is inserted through the perforation (311) of the toothed disc (31) with the bolt (41) and the spacer tube (42), and is locked to the screw hole of the control ring (20) 7 M378123 At (211), the synchronization member (40) is synchronized with the control ring (2). The actual situation of the situation is 'reviewed by Figures 4 and 5 in conjunction with Figure 2. This creation is fixed to the bicycle with the mandrel (12) and the figure (not shown), and the flower hub is salty (10). Nested on the mandrel (12) and used to connect the wheel, the other set of toothed discs (10) is also sleeved on the mandrel (12) and placed into the receiving space of the hub shell (1〇) with the ratchet section (33). ( ιι) • In the middle, the chain plate (31) is connected to the foot pedal with the chain. When riding on a normal bicycle, the control ring (20) is moved outward and the synchronization bump (22) is not inserted. In the synchronous groove (10) of the flower (#) end of the flower chaff, the other sliding protrusion (10) is located in the sliding groove (321) of the toothed disc group (10), and the ball (25) is pressed by the elastic member (26) to be positioned at the first At the two sliding holes (323), when the sprocket wheel set (30) is rotated forward, the sprocket wheel set (3 〇) is directly toothed to the oblique solution (10) by the ratchet (10)' by means of the shaped seam plate group (10) and the flower valley Synchronous rotation of the shell (10)), when the sprocket set (30) is reversed, 'the yaw direction of the ratchet teeth (331) and the tilt direction of the helical ring (13) make the ratchet (331) unable to slant The toothed ring (13) forms a toothed linkage "by forming a reverse rotation When the bicycle performs a stunt show, the linkage (10) is pushed toward the end of the clock (8), so that the linkage (10) pushes the control ring (2) to the end of the helical ring (13) to synchronize the control ring (10). The block (10) is inserted into the synchronous bump (22) at the end of the flower chaff (1〇), and at the same time, the ball (25) of the control ring (10) slides into the first sliding hole (322) to form a positioning effect in the combined state. At this time, the sprocket set (10) is synchronized with the control ring (10) by the control ring (10) regardless of whether the synchronous bump ((2) is accommodated in the synchronous groove (10)). , and can drive the wheel to produce positive and negative movements, which can be carried out by the rider, which can not be achieved by the rider, so as to meet the needs of the rider, the quick change _ change the chaff (10) and the gear set (10) The relationship '俾 to increase its practicality. In summary, 'this creation has indeed achieved a breakthrough structural design, and I has changed the content of the creation' _ _ _ to achieve the _ sex and progress of the production and the paste is not seen in any · 'also has new, t In line with the provisions of the special target, love to propose a new type of special law, please ask the bureau to review the _ legal patent rights, to pray. Only the above-mentioned ones are only the preferred embodiment of the present invention, and it is not possible to limit the actual creation of the creation; that is, the equal changes and modifications made by the applicants should still be The scope of the creation of the patent is covered. M378123 [Simple description of the diagram] Figure 1: This is a three-dimensional combination of the creation. Figure 2: This is a three-dimensional exploded view of the creation. Figure 3: A cross-sectional view of the creation. Figure 4: A schematic diagram of the control loop of the present creation in an unactuated state. Figure 5: Schematic diagram of the control loop of the creation. Figure 6: A stereoscopic exploded view of the prior art. [Main component symbol description] This part of the creation: Flower chaff----(10) Bearing-(101) Housing space one--(11) Mandrel - (12) Helical ring--- (13) Depression groove---- (14) Restrictor----(15) Synchronous groove one--(151) Control ring----(20) Ring body----(21) Screw hole-----(211) Synchronous bump one--(22) Sliding bump---(23) Through hole---—— (24) Ball-(25) Elastic member --- ( 26) Fixing parts----(27) sprocket set----(30) bearing-(301) isl disk-(31) perforation----(311) extension----(32 ) Chute --- ——(321) -(323) M378123 First slide hole one——(322) Second slide hole-- Ratchet segment-- —— (33) Ratchet---- Bushing --(34) Linkage--- Bolt--- ——(41) Spacer--- Conventional Part: Huayi--(50) Fixed Chainring-- Ratchet Set----(52 ) Ratchet ------ Locking firmware --- (54) Active sprocket wheel -- Helical surface --- (551) -(331) -(40) -(42) -(51) - (53) - (55)