M278624 八、新型說明： 【新型所屬之技術領域】 本創作係有關於-種「自行車之 由升降裝置及控制裝置相互配合之設計而可^^:其藉 自行車之座墊高度調整，俾達使用 ★日讀行 【先前技術】 考。 進if= ^用之自仃車，其座墊雖可藉由卫且扳手 而進仃向度上之調整，_難操作上較手 且使用者外出騎乘時無法隨時隨地調整座墊 符合人體I學之舒適騎乘高度，令其❹ 度或 具彈性者。 权馬不便且不 本創作人有鑑於上述習式之缺失，乃田 念，遂以多年的經驗加以設計’經多方探討 驗，及多次修正改良，乃推出本創作。 乍樣m试 【新型内容】 本創作之主要目的’乃在提供一種自行車之座墊升降 紿構，尤指其藉由升降裝置及控制裝置相互配合之設計， 令，用者可視其身高或較為舒適而符合人體工學之騎乘高 度隨時進行座墊之高度調整，俾達使用上更具彈性且更為 方便者。 八 ^ 【實施方式】 餘下茲配合圖式，詳細說明本創作之最佳實施例如后： 如第一圖所示係為本創作之立體分解圖，其係包含： 升降裝置（10)及一控制裝置（20)，該升降裝置（1〇)係設 彈性體（11)、一具外螺紋（121)段之鎖固體（12)與自行車 M278624 (30)於座管（31)—具内螺紋（321)段之容置槽（32)相配合 容設，該鎖固體（12)係設一限位塊（122)且貫設一通孔 (123)，並設若干呈中空狀可為金屬製成之剛性套筒（13)、 可為橡膠製成之軟性套筒（14)、若干墊片（15)及一具通孔 (161) 之底座（16)與自行車（30)於座整（33)之座桿（34)相 結合穿設，該底座（16)於周緣壁面並設若干凸塊（162)且形 成若干結合空間（163)，並設一墊圈（17)、一具内螺紋（181) 段及通孔（182)之螺固體（18)與一下端具外螺紋（191)段之 _ 軸桿（19)相配合穿設，而控制裝置（20)係設一扳動體（21) 與一具適當長度之繩體（22，可為鋼繩）藉由一鎖固體（24) 結合於擋塊（23)—側預定處，而自行車（30)則於座管（31) 之容置槽（32)内適當處設一封閉面（322，請參考第三圖所 示），並於其中空狀之座桿（34)上端預定處係設一穿孔（341 )供繩體（22)穿設，於中段環設一凸緣（342)且於下端凸設 若干結合塊（343)而形成若干結合槽（344)者。 如第二圖所示係為本創作之立體組合圖，同時請參考 第三圖所示係為本創作之扳動體呈順時針方向作動狀態示 • 意圖，其組合時，係將升降裝置（1〇)之彈性體（11)容設於 自行車（30)於座管（31)之容置槽（32)内並藉由其封閉面 (322)達限位狀態，而後，將若干套筒（丨3, 14)由自行車（30) 於座桿（34)底端呈間隔狀依序穿套入且利用其凸緣（342) 達限位效果，再將若干墊片（15)套設於底座（16)之凸塊 (162) 上、下兩端且將控制裝置（20)之繩體（22)末端由座桿 (34)之穿孔（341)穿套入使其由底端穿設出並依序穿過底 座（16)之通孔（161)、墊圈（π)及螺固體（18)之通孔 (182)，並將底座（16)由下而上使其若干凸塊（162)及結合 M278624 空間（163)恰與座桿（34)之結合槽（344)及結合塊（343)相 結合，而後，將其軸桿（19)由下而上依序穿經螺固體（18) 之通孔（182)、墊圈（17)及底座（16)之通孔（161)使其外螺 紋（191)段與螺固體（18)之内螺紋（181)段相螺固鎖迫於底 座（16)下端同時令繩體（22)壓掣變形於軸桿（19)達固定狀 態，再將座桿（34)由上而下容設於其座管（31)之容置槽（32 )内且將鎖固體（12)之外螺紋（121)段與座管（31)於容置槽 (32)之内螺紋（321)段相螺固且藉由限位塊（122)達鎖迫固 • 定限位狀，最後，將控制裝置（20)之繩體（22)固定於自行 車（30)之預定處且將其另一端結合之擋塊（23)及扳動體 (21)固定於自行車（30)於把手桿（35)至適當處即完成組設 者。 其欲使用自行車(30)時，使用者係可視其身高及其所欲 乘座及較為舒適騎乘而符合人體工學之騎乘高度將控制開 關（20)之扳動體(21)呈順時針方向扳動（如第三圖所示）使 其利用擋塊(23)之抵撐、卡抵作用拉動繩體(22)，其軸桿（19) 則藉由螺固體（18)及墊圈（17)達限位狀態而向上作動且同 •時帶動座桿（34)及其相結合之座墊(33)於容置槽（32)之活動 空間（A，如第六圖所示）内向上升起（如第四圖所示），令 其凸緣(342)抵撐於鎖固體（12)之外螺紋（121)段底端達限位 卡固狀態，㈤時’其彈性體⑴)隨即彈升頂撐於底座底 端達頂撐作用，令使用者以最適當、最舒服之乘座高度騎 乘自行車(3〇)，如欲停車下車時，係可將控制裝置(20)之扳 動體(21)呈逆日$針方向扳動（如第五圖所示）使其繩體⑽ 呈鬆弛狀悲而令座#(34)利用人體及套筒（13，14)之重量向 下壓抵彈性體(11)收縮呈下降狀態（如第六圖所示）而枝 M278624 f車、下車，藉此，俾可視使用者需求隨時調整自行車座 ^狄高低位置，令其使用上更具彈性且更為方便丁^ 者0 女第七圖所示係為本創作另一實施例之立體分解圖， 其升降裝置（40)係設一彈性體(41)、一塊體(42)及一氣壓棒 (43)依序由自行車（5〇)於座墊(51)之座桿⑽底端容設於内 並利用其對稱凸設之限位體(53)達限位狀態，同時令氣壓棒 (43)之外螺紋（431)段與座桿（52)於内部預定處之内螺紋 • (521)段相螺固鎖合，該氣壓棒（43)於上端並設一控制鈕 (432)，再將一呈c狀之束環(44)套設於氣壓棒(43)下端且令 其凸部（441)恰卡合於座桿（52)之透孔（522)内達卡固狀態使 座桿（52)可與氣壓棒(43)呈同步位移作動，其塊體(42)並於 上端預定處並與控制裝置(2〇)之繩體(22)相結合固定，再將 與座管（54)之限位槽（541)呈相似形之座桿（52)容設於自行 車（50)座管（54)之限位槽（541)内達限位狀態，藉此，將控制 裝置（20)之扳動體(21)向一側扳動令繩體（22)向上拉動並帶 動塊體(42)壓抵彈性體(41)產生收縮作用，同時，藉由氣壓 • 棒(43)之凸伸作用使其控制鈕(432)接抵於塊體（42)下端而 帶動座桿（52)於座管（54)内向上位移作動（如第八圖所示） 達上升狀態，如繩體於(22)於鬆弛狀態時，則藉由彈性體(41 )之向下彈升作用而帶動塊體(42)向下位移作動且壓抵氣壓 棒(43)頂部之控制鈕(432)，利用氣壓棒(43)之收縮作用而帶 動座桿（52)於座管（54)内向下位移而達下降狀態（如第九圖 所示）者。 如第十圖所示係為本創作再一實施例之組合剖面暨座 墊上升狀態示意圖，其升降裝置(60)係設一具結合部（62)之 M278624 結合體(61)與自料(70)於座管㈤之容置槽（72)相配合組 設，該結合部（62)於一側並設一具容置空間（64)之外管 可容設-油壓升降組(65)，而結合部(62)係設一貫孔而 可容置-升降桿(67)於座管(71)之容置槽(72)内活動，該升 降桿(67)於上端係與—升降控制體(68)相結合，升降斤制體 (68)於頂端之升降桿（67)相對處係與自行車於座墊（74)之座 桿(73)相結合，且於適當處設一貫孔(681)令油壓升降組⑽ 於控制連桿（651)頂端之控制鈕(652)恰凸伸於外，並於一側 ❿設-樞固體(682)與-活動桿(683)呈一適當角度相枢結，該 活動桿(683)設有-貫孔(684)供座桿(71)穿設固結於升降控 制體(68)上端，於-侧並設一穿孔(685)與控制裝置(2〇)之繩 體(22)相結合，而自行車（70)於座管（71)與結合體（61)於結合 部（62)之結合處並設一快拆裝置（8〇)使其相緊密結合，藉 此’將控制裝置（20)之扳動體(21)向一側扳動而拉動繩體(22 )呈緊細狀態時，令其升降控制體(68)之活動桿(6幻）向下呈 水平狀並壓抵於油壓升降組（65)頂端之控制鈕(652)上，藉 由油壓升降組（65)於控制連桿（651)向上頂撐位移作用而帶 動升降杯（67)於座管（71)之容置槽（72)内向上移動達座塾 (74)上升狀態（如第十圖所示）至適當高度後再將扳動體(2 ^ )予以放鬆使油壓升降組(65)之控制鈕(652)脫離活動桿（683 )之壓抵並同時順勢頂撐活動桿（683)彈升復位而呈定位狀 怨，一旦座墊（74)上升位置過高或欲使座墊（74)呈下降狀態 時則藉由人體之重量瞬間向下施力令座桿（73)同步帶動升 降桿（67)及油壓升降組（65)之控制連桿（651)向下位移達座 墊(74)下降狀態（如第十一圖所示）者。 綜上所述，本創作確實已經達於突破性之結構，而具 M278624 容’同時又能夠達到產業上利用性與進步 利法第九十S見物’亦具新難，當符合專 —保弟九十四條之規定，爰依法 利申局審查委員授予合法專利權，至為感禱。 彳述者，僅為本創作之一可行實施例而已，告 =之限定本創作實施之範圍；即大凡依本創作申請； 作之均等變化與修飾，皆應仍屬本創作專利涵蓋 之犯圍内。 【圖式簡單說明】 苐一圖·係為本創作之立體分解圖。 第二圖：係為本創作之立體組合圖。 第三圖：係為本創作之扳動體呈順時針方向作動狀態 示意圖。 第四圖··係為本創作之座墊上升狀態示意圖。 第五圖：係為本創作之扳動體呈逆時針方向作動狀態 示意圖。 第六圖：係為本創作之座墊下降狀態示意圖。 第七圖·係為本創作另一實施例之立體分解圖。 第八圖：係為本創作另一實施例之座墊上升狀態示意 圖。 第九圖·係為本創作另一實施例之座藝下降狀態示意 圖。 第十圖：係為本創作再一實施例之組合剖面暨座墊上 升狀態示意圖。 第十一圖：係為本創作再一實施例之組合剖面暨座墊 M278624M278624 8. Description of the new type: [Technical field to which the new type belongs] This creation is about-a kind of "bicycle designed by the lifting device and the control device to cooperate with each other ^^: It can be adjusted by the seat cushion height of the bicycle ★ Day reading line [previous technique] test. For if = ^ is used for self-driving cars, although the seat cushion can be adjusted by the guard and the wrench, the _ is difficult to operate and the user is out riding When riding, you cannot adjust the comfortable riding height of the seat cushion in accordance with the human body's I science to make it sloppy or flexible. The right horse is inconvenient and the author is not aware of the lack of the above habits. Designed by experience 'After many discussions and trials, and several amendments and improvements, this is the creation of this creation. At first try [new content] The main purpose of this creation' is to provide a bicycle seat cushion lifting structure, especially its borrowing. The design of the cooperation of the lifting device and the control device allows the user to adjust the height of the seat cushion at any time according to his height or a more comfortable and ergonomic riding height. More convenient. [Embodiment] The following is a detailed explanation of the best example of this creation in conjunction with the drawings: The first figure is a three-dimensional exploded view of this creation, which includes: a lifting device ( 10) and a control device (20), the lifting device (10) is provided with an elastic body (11), a lock body (12) with an external thread (121) section, and a bicycle M278624 (30) on the seat tube (31 ) —The receiving grooves (32) with internal thread (321) sections are matched and accommodated. The lock body (12) is provided with a limiting block (122) and a through hole (123) is continuous, and a number of hollows are provided. The shape can be a rigid sleeve (13) made of metal, a flexible sleeve (14) made of rubber, several gaskets (15), a base (16) with a through hole (161), and a bicycle (30 ) Combined with the seat post (34) of the seat (33), the base (16) is provided with a plurality of projections (162) on the peripheral wall surface and forms a plurality of coupling spaces (163), and a washer (17) 1. A screw solid (18) with an internal thread (181) and a through hole (182) is matched with a _ shaft (19) with an external thread (191) at the lower end, and the control device (20) is A pull body (21) and a rope body (22, which can be a steel rope) of appropriate length are combined with a stopper (23) by a lock solid (24) at a predetermined position on the side, and the bicycle (30) is at A closed surface (322, please refer to the third figure) is appropriately arranged in the accommodation groove (32) of the seat tube (31), and a perforation is provided at a predetermined position on the upper end of the hollow seat post (34). 341) For the rope body (22) to pass through, a flange (342) is set in the middle section, and a plurality of coupling blocks (343) are protruded at the lower end to form a plurality of coupling grooves (344). The system shown in the second figure is The three-dimensional combination drawing of this creation, please also refer to the third figure, which shows the clockwise movement state of the trigger body for this creation. • Intent, when it is combined, it is the elastic body (11) of the lifting device (10). ) Is accommodated in the accommodation groove (32) of the bicycle (30) in the seat tube (31) and reaches the limit state by its closed surface (322), and then several sleeves (丨 3, 14) are removed from the bicycle (30) Sleeve the sleeve at the bottom of the seat post (34) in a spaced manner and use its flange (342) to achieve the limit effect, and then place a number of gaskets (15) on the projections of the base (16) (162) up The lower ends and the end of the rope body (22) of the control device (20) are penetrated by the perforations (341) of the seat post (34) so that they pass through the bottom end and pass through the opening of the base (16) in sequence. Hole (161), washer (π) and through hole (182) of the screw solid (18), and the base (16) is made from bottom to top with a number of projections (162) and the combination of M278624 space (163) and the seat The coupling groove (344) and the coupling block (343) of the rod (34) are combined, and then the shaft (19) is passed through the through hole (182) of the screw solid (18), the washer ( 17) and the through hole (161) of the base (16), the external thread (191) section and the internal thread (181) section of the screw solid (18) are screwed to the lower end of the base (16) and the rope body ( 22) Press the button to deform the shaft (19) to a fixed state, and then place the seat post (34) in the receiving groove (32) of its seat tube (31) from top to bottom and lock the solid body (12) The external thread (121) and the seat tube (31) are screwed into the internal thread (321) of the receiving groove (32) and locked by the stopper (122). , Fix the rope body (22) of the control device (20) to the predetermined place of the bicycle (30) and fix it Combination of an end stopper (23) and the pulling member (21) is fixed to the bicycle (30) to a handle bar (35) to the appropriate setting is completed by the group. When he wants to use the bicycle (30), the user can adjust the trigger body (21) of the control switch (20) according to his height, his desired seat and a more comfortable riding height. Move in the clockwise direction (as shown in the third picture) to pull the rope body (22) by the abutment of the stopper (23), and the shaft (19) of the shaft (19) by the screw solid (18) and the washer (17) Move upwards when reaching the limit state and simultaneously drive the seat post (34) and its combined seat cushion (33) in the movement space of the accommodation slot (32) (A, as shown in the sixth figure) It rises inward (as shown in the fourth figure), so that its flange (342) bears against the bottom end of the external thread (121) of the lock body (12) and reaches the limit clamping state, and then 'its elastomer' ) Then the top support is lifted to the bottom end of the base to achieve the top support function, so that the user can ride the bicycle at the most appropriate and comfortable seat height (30). If you want to park and get off, you can use the control device (20). The trigger body (21) is moved in the direction of the reverse needle (as shown in the fifth picture) to make the rope body slack and sad. The seat # (34) uses the weight of the human body and the sleeve (13, 14). Push down The body (11) is in a contracted state (as shown in the sixth figure), and the M278624 f is off and on, so that you can adjust the bicycle seat at any time according to user needs, making it more flexible and more flexible in use. For the sake of convenience, the figure of the seventh female figure is a three-dimensional exploded view of another embodiment of the creation. The lifting device (40) is provided with an elastic body (41), a body (42), and a pneumatic rod ( 43) The bicycle (50) is housed in the bottom end of the seatpost (51) of the seat cushion (51) in sequence and the symmetrically protruding limiting body (53) is used to reach the limit state, and the air pressure rod (43 ) The external thread (431) and the seat thread (52) are internally screwed in the internal predetermined position. (521) is screw-locked. The pneumatic rod (43) is provided with a control button (432) on the upper end. A c-shaped beam ring (44) is sleeved on the lower end of the air pressure rod (43) and the convex part (441) is just engaged with the seat in the through hole (522) of the seat post (52) in a fixed state so that the seat The rod (52) can move synchronously with the pneumatic rod (43). Its block (42) is fixed at the upper end and fixed with the rope body (22) of the control device (20). (54) The limit slot (541) is in phase The shapely seatpost (52) is accommodated in the limit groove (541) of the bicycle (50) seatpost (54) to reach the limit state, thereby, the trigger body (21) of the control device (20) is directed toward Pulling on one side causes the rope body (22) to pull upwards and drives the block body (42) to press against the elastic body (41) to produce a contraction effect. At the same time, the control button (432) is controlled by the protruding action of the air pressure rod (43). ) Abuts the lower end of the block (42) and drives the seat post (52) to move upward in the seat tube (54) (as shown in the eighth figure) to a rising state, such as when the rope body (22) is in a relaxed state Then, the downward movement of the elastic body (41) drives the block (42) to move downward and press against the control button (432) on the top of the air pressure bar (43), and the contraction of the air pressure bar (43) And the seatpost (52) is driven to move downward in the seatpost (54) to a lowered state (as shown in the ninth figure). As shown in the tenth figure, it is a schematic diagram of the combined cross section and seat cushion ascending state of another embodiment of the creation. The lifting device (60) is provided with a M278624 combination body (61) with a joint (62) and a self-reporting ( 70) It is set in cooperation with the accommodation groove (72) of the seat tube ㈤. The joint (62) is on one side and is provided with an accommodation space (64). The outer tube can be accommodated-hydraulic lifting group (65 ), And the joint portion (62) is provided with a through hole to accommodate the-lifting rod (67) to move in the receiving groove (72) of the seat tube (71). The lifting rod (67) is connected to-lifting at the upper end. The control body (68) is combined. The lifting rod (67) at the top of the lifting body (68) is combined with the seatpost (73) of the bicycle on the seat cushion (74), and a through hole is provided at an appropriate place. (681) The control button (652) on the top of the control rod (651) of the hydraulic lifting group is projected out, and a pivot solid (682) and a movable rod (683) are arranged on one side to form a At a proper angle, the movable rod (683) is provided with a through hole (684) for the seat post (71) to pass through and fixed to the upper end of the lifting control body (68), and a perforation (685) is provided on the-side. The rope body (22) of the control device (20) is combined, and the bicycle (70) is mounted on the seatpost. 71) and a combination body (61) at the joint of the connection portion (62) and a quick release device (80) is provided to tightly combine it, thereby 'turning the trigger body (21) of the control device (20) toward When pulling on one side and pulling the rope body (22) into a tight state, the movable lever (6) of its lifting control body (68) is horizontally downward and pressed against the top of the hydraulic lifting group (65). On the control button (652), the lifting cup (67) is driven upward in the accommodation groove (72) of the seat tube (71) by the displacement of the hydraulic lifting group (65) on the control link (651) upwards. After moving the seat 塾 (74) in the raised state (as shown in the tenth figure) to an appropriate height, release the trigger body (2 ^) to release the control button (652) of the oil pressure lifting group (65) from the movable lever ( 683), and at the same time, the active support rod (683) rebounds and resets as a result of positioning. Once the seat cushion (74) rises too high or the seat cushion (74) is lowered, the When the weight is momentarily applied downward, the seat post (73) synchronously drives the lift lever (67) and the control link (651) of the hydraulic lift group (65) to move down to the lowered state of the seat cushion (74) (as shown in Figure 11). Show) . In summary, this creation has indeed reached a groundbreaking structure, and M278624 content 'can also achieve the industry's utilization and progress in the 90th S. See the thing' also has new difficulties, when conforming to the professional-Baodi According to the provisions of Article 94, the Examination Committee of the Farisson Bureau granted legal patent rights. The narrator is only one of the feasible embodiments of this creation. The report limits the scope of the implementation of this creation; that is, the application of this creation in accordance with this creation; the equal changes and modifications of the creation shall still fall within the scope of this creative patent. Inside. [Simplified illustration of drawings] 苐 一 图 · This is a three-dimensional exploded view of this creation. The second picture: It is a three-dimensional combination picture of this creation. The third picture: it is a schematic diagram of the clockwise movement of the trigger body in this creation. The fourth picture is the schematic diagram of the rising state of the seat cushion for this creation. Fifth picture: This is a schematic diagram of the counterclockwise movement of the trigger body in this creation. Figure 6: This is a schematic diagram of the seat cushion falling state for this creation. The seventh figure is a three-dimensional exploded view of another embodiment of the creation. Figure 8: This is a schematic diagram of the rising state of the seat cushion in another embodiment of the present invention. The ninth picture is a schematic diagram of a state of decline of a seat art in another embodiment of the creation. Fig. 10: This is a composite section and a schematic diagram of the rising state of the seat cushion in another embodiment of the present invention. Figure 11: The combined profile and seat cushion of another embodiment of this creation M278624
下降狀態示意圖。 【主要元件符號說明】 10·.· ...升降裝置 11···· ..彈性體 12··· ...鎖固體 121··· ..外螺紋 122·· ...限位塊 123··· ..通孔 13··· ...剛性套筒 14·.·· ..軟性套筒 15··· ...墊片 16···· ..底座 161.. ...通孔 162··· ..凸塊 163·· ...結合空間 17···· ..墊圈 18··· ...螺固體 181··· ..内螺紋 182·· ...通孔 19···· ..軸桿 191·· ...外螺紋 20···· ..控制裝置 21··· ...扳動體 22··· · ..繩體 23··· ...擋塊 24··· · ..鎖固體 30··· ...自行車 31···· ..座管 32··· ...容置槽 321··· ..内螺紋 322·· ...封閉面 33··· · ..座墊 34··· ...座桿 341··· ..穿孔 342·· ...凸緣 343... 344·· ...結合槽 35··· · ..把手桿 40··· ...升降裝置 41···· ..彈性體 42··· ...塊體 43··· · ..氣壓棒 431·. ...外螺紋 432··· ..控制鈕 M278624Descending diagram. [Description of main component symbols] 10 ......... Lifting device 11 ......... Elastomer 12 ... Locking solid 121 ......... External thread 122 ... Limit block 123 ············ through hole 13 ···· rigid sleeves 14 ················ software sleeves 15 ····· pads 16 ···· base 161 ... .Through hole 162 ················································… Through hole 19 ..... Shaft 191 ... External thread 20 ... Control device 21 ... Trigger body 22 ... Rope body 23 ... · ... stop 24 ··············································· ... means for retaining grooves 321 ... 322 ... closed surface 33 ... seat cushion 34 ... seat post 341 ... perforated 342 ... flange 343 ... 344 ... .Combination groove 35 ........... lever 40 ........ lifting device .. 41 .. ... external thread 432 ... Control knob M278624
44··· · ..束環 441··· ..凸部 50···· ..自行車 51···· ..座墊 52·.. · ..座桿 521··· ..内螺紋 522··· ..透孔 53··· · ..限位體 54··· · ..座管 541··· ..限位槽 60···· ..升降裝置 61···· ..結合體 62··· · ..結合部 63··· · ..外管 64···· ..容置空間 65···· ..油壓升降組 651··· ..控制連桿 652· · · ..控制鈕 66··· · ..貫孔 67··· · ..升降桿 68···· ..升降控制體 681··· ..貫孔 682··. 683··· ..活動桿 684... ..貫孔 685··· ..穿孔 70···· ..自行車 71···· ..座管 72··· · ..容置槽 73··· · ..座桿 74··· · ..座墊 80···· ..快拆裝置 A···· ..活動空間 12 ⑧44 ···· .................................................................................................................................................................................. Thread 522 ..... through-hole 53 .......... limiting body 54 ......... seat tube 541 ...... limiting groove 60 ...... lifting device 61 ... ···· 62 ········ 63 ···················································································································· The oil hydraulic lifting group 651 ··· Control link 652 ···· Control knob 66 ··························· 68 ······· Lifting control body 681 ···· through-hole 682 ·· .683 ...... Moveable rod 684 ..... through hole 685 ...... perforated 70 .......... bike 71 ......... seat 72 .. Groove 73 ····· Seat Post 74 ····· Seat Cushion 80 ······························· Moving space 12 活动