200948653 九、發明說明： 【發明所屬之技術領域】 本發明係有關-種推車油轉車系統，尤指一 作者可，用單-方向踩踏的動作完成啟動或解除的動 作’在踩料’使其活塞上的卡鍵與外殼内的斜導面及 導槽的交互作用，讓卡鍵可在―高—底位置相互交替， 而將液壓油注入卡止手段，使卡止手段上的卡銷嵌入車 ©輪轉盤之受抵部’而產生啟動停車與解除停車的操作效 果。 【先前技術】 按習知手推車停車裝置的方法種類繁多，譬如有一 分別裝置於後輪兩侧的停車裝置，在此裝置上設有踩踏 板，並在踩踏板下方設有嵌齒，使踩下踏板時讓嵌齒嵌 入後輪上所設置之齒部空缺，藉此停住後輪。但由於停 ❿車的方式的操作係分左右兩侧各別控制，故操作不便。 遇緊急狀況慌亂時，操作者常常無法立即反應將兩側的 輪胎停住，而造成手推車晃動及旋轉。單邊各別停車裝 置的設計並非完全不適用於嬰兒手推車，目前仍有嬰兒 手推車使用此設計裝置’礙於環境的限制，此裝置多用 於緩慢行敌的嬰兒手推車或行駛於較為平穩路面的嬰兒 手推車等；但對於行使速對較高或行駛於較陡峭的斜坡 時，基於安全因素的考量，兩後輪同步停車及快速操作 就更為重要’目前亦有國家將單踩兩侧同步停車的功能 200948653 列為產品設計之安全標準者，如英國。 已知或已揭露嬰兒手推車停車裝置，有些能滿足前 述功能者’如德國專利DE29818659U1，揭露了一種可以 同時煞住或是釋放兩個輪子的嬰兒車煞車裝置，此以煞 車裝置利用踩踏或是向上勾起一種可作直線往復運動的 凸板元件連動一管狀的煞車套管延著輪轴的軸向移動， 藉由煞車套管套住輪軸之花瓣形煞車鰭片的設計，提供 ❹煞車或是釋放的功能，使用者必須透過下凸版的方式煞 車，欲解除煞車時則必須利用足尖將凸板向上挑起；而 美國第5, 460, 399號專利也揭露了 一種具有相同功能的 煞車裝置，此一煞車裝置利用一種可以上下擺動的踏板 連動二根煞車桿，其中的踏板底部設置有—對彼此之間 保持有一夾角的斜面煞車時使用者必須藉由踩下踏板的 方式透過斜面將煞車桿同時推人輪浮之巾，欲釋放煞車 ❹時則同樣需要以足尖將踏板向上挑起；中華民國第 501506號專利揭露當使用者踩下踏板面啟動一煞車裝置 進入煞車作動狀態時，亦會帶動將連桿位置升起，連 桿會同時帶動另—組煞車裝置進人煞車作動狀態，以兩 組煞車裝置來箝制嬰兒車之輪子。更可以加強嬰兒車之 煞車效果；前揭三種已知技術具有相同的操作方式使 =是藉由踩下或是以足尖挑起踏板的方式完成煞車 $疋除煞車的操作，操作的方式雖然簡單，但是以足 災挑起踏板的#作方式卻容㈣害使用者的鞋面。 200948653 ❷ 另外嬰兒手推車停車裝置裡的油壓力導引手段，大 部分都是利用鋼索導引啟動和解除停車裝置，已知 揭露嬰兒手推車停車裝置，例如：美國第5 713,585號專 利案提出’此專利揭露了—種嬰兒車的安全煞車裝置， 此安全煞車裝置可以在使用者離開嬰兒車的位置時，限 制住輪子錢㈣，❹者若欲推嬰兒⑽必須釋 車裝置方可使嬰兒車移動；此煞車裝置更包括有一個以 ❹可移動之關配置在嬰料扶手之停車㈣，使用者必 須握住此煞車握把像上施力才能使停車裝置脫離；前揭 已知技術的操作方式’使用者都是藉由鋼索導引停車裝 置方式完成煞車或是解除煞車的操作，操作的方式雖然 簡單，但是若使用者行走纽坡時，則使握把的角度不、 易於使用者啟動或解除煞車裝置，而導引裝置是使用銦 1 緩則鋼索鬆脫，一 【發明内容】 本發明之主要目的，在於提供—種可解決習知 車的手動停車問題推車油壓停車H達成此—目之 技術手段，係包括一停車開關組件、一油壓力導引手段 及一卡止手段，該停車開關組件和油壓力導引手P ::塞和-外殼，而活塞外的卡鍵藉由外殼内的凸又停： 斜導面,導槽的交互循環作動，使踏鈕在同一方向受力 而可做剎車啟動及騎，以解決習用結構制者必須 200948653 以腳足尖挑起踏板的操作所造成斜面損壞及操作不便的 缺失。目前手推車停車裝置都是採用鋼索或連桿來驅動 停車裝置的啟動和解除，而本發明之油壓力導引手段是 為油壓裝置，該油壓力導引手段連接於停車開關組件與 卡止手段之間，藉由停車開關組件配合油壓力導引手段 来驅動卡止手段，驅使卡銷迫抵嵌入車子轉盤之受= 部’來達到停車的效果，如此可避免習用零件間的磨耗 ❹而造成間隙過大及鋼索鬆脫造成啟動和解除停車裝置反 應遲緩，而造成危險。 本發明其他的目的和進一步適用的範疇，可由下列 的詳細敘述巾清祕知。但是，這些詳細的敘述和所提 到的實施例僅供說明用，因為在本發明的精神和範•中 =做的各種的改變和修正對於此行業中的專業人士而 言’足可從這些詳細說明及圖示中清楚得知，但這些詳 ❹=說明和附圖只作說明之用，而不應侷限本發明之權利 範圍。 【實施方式】 壹·本發明的基本結構特徵 請參閱第la、5、6及u圖所示，本發明所實施々 推車油料車純，其係㈣置在—推車上，包括有· 一座體⑽，其固定於一具有輪轴⑴）的車架（12 上，該輪軸（11)供設置輪子（13); 停車開關組件（20) ’如圖u、6 所示，該停車開 200948653 關組件裝置（2〇)在該座體（ίο)上，其包括有： 外殼（21) ’請配合參看圖5、6所示，該外殼（21) 具有上下轴向貫穿的通孔（210)，該通孔（210)的上半段 内壁環佈有等間距的複數個凸條（211)，每兩相鄰的該凸 條（211)之間形成一上下轴向延伸的導槽（212)，該導槽 (212)頂端為封閉，底端則為開口，每一該凸條（211)底 端形成鋸齒狀而具有同向傾斜的一第一斜導面（2110)及 ❹一第二斜導面（2111)，該第一斜導面（2110)與該第二斜 導面（2111)的一端以一陡隋卡制面（2112)相接，並使該 第一斜導面（2110)與該卡制面（2112)圍成一凹陷的卡制 部（2113) ’該卡制部（2113)的深度較該導槽（212)者為 小，該第一斜導面（2110)及該第二斜導面（2111)的另一 端則分別延伸至對應的該凸條（211)之一邊，該外殼（21) 之該通孔（210)的下半段形成有一容納液壓油的油槽 0 (213” 一活塞（22)，該活塞（22)可移動及轉動地以底端穿 入該外殼（21)之該通孔（21〇)内，藉由該活塞（22)控制該 油槽（213)之容積大小，而控制使該油槽（213)内的液壓 油做進出’該活塞（22)周面環設複數個與該導槽（212)或 該卡制部（2113)對應的卡鍵（220)，每一該卡鍵（220)的 頂面形成有一頂斜面（221)，其中，活塞（22)底端外周套 設有防漏圈（222); 一彈性元件（23) ’其用以提供該活塞（22)相對該外 200948653 殼（21)做向上移動的復位彈力；及 一踏鈕（24)，該踏鈕（24)套接在該活塞（22)的頂 端’且其可移動地以底端穿入該外殼（21)之該通孔（210) 内’該踏鈕（24)外周面設有凸緣（240)，該凸緣（240)供 嵌入該外殼（21)之該導槽（212)而可沿著該導槽（212)上 下移動’使該踏鈕（24)相對該外殼（21)只可上下移動而 不可轉動’該踏鈕（24)底端設有複數個與該活塞（22)之 ©該卡鍵（220)之該頂斜面（221)相對應的底斜面（241)，藉 由該踏鈕（241)相對該外殼（21)下移，而以該底斜面（241) 與該活塞（22)之該卡鍵（220)的該頂斜面（221)接觸，而 可使該活塞（22)相對該外殼（21)下移並做旋轉，而使該 活塞（22)之該卡鍵（220)移至該外殼（21)的該導槽（212) 内’令該活塞（22)受到該彈性元件（23)頂推而相對該外 殼（21)位於一上方位置，或移至該外殼（2丨）之該凸條 ❹（211)的該卡制部（2113)内而相對該外殼（21)位於一下 方位置； 至少 止手段（30)，請配合參看第la、l〇a及第 11圖所示，其裝置於該座體（1〇)上，並臨近一與該車架 (12)之該輪轴（11)同轴固定的轉盤（14)，該轉盤（14)上 設有至少一受抵部（14〇)，該卡止手段（30)包括一殼體 (31)、一推桿（32)、—销（33)及一復位彈性件（34)， 該殼體（31)内部具有腔室（310)，該推桿（32)與該卡銷 (33)相接並可移動地容置在該腔室（31〇)内而將該腔室 200948653 (310 )隔出一可供該液壓油流入的容油空間（3丨丨），該卡 銷（33)局部伸出該殼體（31)外’且末端朝向該轉盤（14) 之該受抵部（140)，該復位彈性件（34)提供該推桿（32)在 該液壓油流出該容油空間（311)時的一復位彈力；及 一油壓力導引手段（40)’如第1 a、5圖所示，係連 接於該停車開關組件（2〇)與該卡止手段（3〇)之間，其包 括一下蓋（41 )、一閥組（42)及至少一油管（43)，其中該 〇下蓋（41)設置於該外殼（21)底部而封住該油槽（213)，該 閥組（42)包括有一入口（420)及至少一出口（421)，該出 口（421)與該油管（43)—端相接通，該油管（43)另端與該 卡止手段（30)之該殼體（31)的該容油空間（311)相接通。 貳·本發明更具體實施例或較佳實施例 一 ·本發明閥組的具體實施例 請參看第la、5圖所示’本發明推車油壓停車系統 ❹中之閥組的一種具體實施例’其閥組（42 )包括一出油螺 栓（422)及一分油件（423)，該分油件（423)套設在該出油 螺栓（42 2)上’該出油螺栓（4 22)具有相通的一軸向孔 (4220)及至少一橫向孔（4221)，該轴向孔（4220)—端呈 開口狀而為該閥組（42)之該入口（420)，該分油件（423) 至少一側設有一出油管（4230)而具有該出口（421)，該出 油管（4230)供該油管（43)套接，該下蓋（41)具有一螺孔 (410)而供螺接該出油螺栓（422)，使該閥組（42)定位於 該下蓋（41)上》 200948653 二·本發明卡止手段的一種較佳實施例 請參看第la、9a、l〇a、11圖所示，本發明推車油 壓停車系統中之卡止手段的一種較佳實施例，該卡止手 段（30)的數量為二，該轉盤（14)的數量為二，該油管（43) 的數量為二，該出口（421)的數量為二，每一該卡止手段 (30)的該殼體（31)之該容油空間（3Π)經由一對應的該 油管（43)、一對應的該出口（421)而與該闕組（42)相通， ❹再經由該閥組（42)而與該外殼（21)之該油槽（213)相 通，且每一該卡止手段（3〇)的該卡銷（33)之該末端朝向 一對應的該轉盤（14)之該受抵部（140)。其中，本發明卡 止手段（30)的更佳實施例，係該轉盤（14)上之該受抵部 (140)為複數個，而且該等受抵部（14〇)是沿著該轉盤（14) 之一圓心環繞等距分佈，如此使得卡銷（33)很容易對準 其一受抵部（140)而形成卡抵。再者，本發明卡止手段（3〇) ❾中之受抵部（140)的更具體實施例，係該受抵部（14〇)為 一凹緣，該凹緣可供該卡銷（33)之末端穿入而形成卡制。 三·本發明卡止手段的一種具體實施例 請參看第10a、11圖所示，本發明推車油壓停車系 統中之卡止手段的一種具體實施例，該殼體（31)包括有 相套接的一左外殼（312)及一右外殼（313)，而該推桿（32) 設有一端呈開口狀的軸孔（320)，該軸孔（32〇)内容置一 彈性件（35)及該卡銷（33)的一端，藉由該彈性件（35)的 彈力而使該卡銷（33)相對該推桿（32)具有一緩衝力。 12 200948653 ) « 四本發明停車開關組件的第一種較佳實施例 "月參看第6、7a圖所示，本發明推車油壓停車系統 中之停車開關組件的第—種較佳實施例，該踏钮（24)頂 面认有鏤空孔（243)，而該活塞（22)頂面環設有等距且 數量與該導槽（2丨2)相等的第一標記（223)，當其一第一 標η己（223)移至該鏤空孔（243)位置時，該第一標記（223) 用以顯示非剎車狀態。 © 五·本發明停車開關組件的第二較佳實施例 凊參看第6、7b圖所示，本發明推車油壓停車系統 中之停車開關組件的第二種較佳實施例，該踏紐（24)頂 面設有一鏤空孔（243)，而該活塞（22)頂面環設有等距且 數量與該卡制部（2113)相等的第二標記（224)，當其一第 二標記（224)移至該鏤空孔（243)位置時，該第二標記 (224)用以顯示剎車狀態。其中，該標記（223)(224)的一 ❹種具體實施例係為顏色標記。 六·本發明停車開關組件的第三較佳實施例 凊參看第6、7a、7b圖所示，本發明推車油壓停車 系統中之停車開關組件的第三種較佳實施例，該踏鈕（24) 頂面設有一鏤空孔（243)，而該活塞（22)頂面環設有等距 且數量與該導槽（212)相等的第一標記（223)及等距且數 量與該卡制部（2113)相等的第二標記（224)，該第一標記 (22 3)與該第二標記（224)逐一交錯環佈在該活塞（22)頂 面，‘其一該第一標記（223)移至該鐘空孔（243)位置 13 200948653 時’該第一標s己（2 2 3 )用以顯示非刹車狀態，當其一該第 二標記（224)移至該鏤空孔（243)位置時，該第二標記 (224)用以顯示剎車狀態。其中，該第一標記（223)及該 第二標記（224)的一種具體實施例係分別為不同顏色的 標記。 七·本發明停車開關組件的第四較佳實施例 請參看第6、7a圖所示，本發明推車油壓停車系統 〇中之停車開關組件的第四種較佳實施例，該踏鈕（24)底 端之該底斜面（241) —端接設有一反向傾斜的倒斜面 (242)，使該倒斜面（242)與該底斜面（241)由一側觀之呈 倒V形，該倒斜面（242)用以止擋卡鍵（22〇)，以使該活 塞（22)旋轉一角度後定位。 以上所述，僅為本發明之一可行實施例，並非用以 限定本發明之專利H圍，凡舉依據下列巾請專利範圍所 ❺述之内令、特徵以及其精神而為之其他變化的等效實 施’皆應包含於本發明之專利範圍内。本發明所具體界 疋於申凊專利範園之結構特徵，未見於同類物品，且具 實用^與進步性，已符合發明專利要件，爰依法具文提 出申π，謹睛鈞局依法核予專利，以維護本申請人合 法之權益。 【圖式簡單說明】 第la圖為本發明之推車油壓停車系統且呈未剎車狀 態之整雜組合立體示意圖； 200948653 第1 b圖為本發明之推車油壓停車系統且呈未剎車狀 態之整體組合平面示意圓； 第2a圖為本發明之推車油壓停車系統且呈剎車狀態 之整體組合立體示意圖； 第2b圖為本發明之推車油壓停車系統且呈剎車狀態 之整體組合平面示意圖； 第3圖為本發明之停車開關組件及油壓力導引手段 ❹之組合立體示意圖； 第4圖為本發明之停車開關組件及油壓力導引手段 之組合平面示意圖； 第5圖為本發明之停車開關組件及油壓力導引手段 之分解立體示意圖； 第6圖為本發明之停車開關組件之放大分解示意圖； 第7a圖為本發明之停車開關組件且呈未剎車狀態之 ❿組合立體示意圖； 第7b圖為本發明之停車開關組件且呈剎車狀態之組 合平面示意圖； * 8a圖為本發明之停車開關組件且呈未剎車狀態之 斷面示意圖； f 8b圖為本發明之停車開關組件且呈刹車狀態之斷 面示意圖； 第9a圖為本發明之卡止手段且呈未刹車狀態之組合 立體示意圖； 200948653 第9 b圖為本發明之卡止手段且呈剎車狀態之組合立 體不意圖； 第l〇a圖為本發明之卡止手段且呈未剎車狀態之立 體剖示圖； 第l〇b圖為本發明之卡止手段且呈剎車狀態之立體 剖示圖；及 第11圖為本發明之卡止手段的分解立體示意圖。 ❹ 【主要元件符號說明】 (10)座體 (11)輪轴 (12)車架 (13)輪子 (14)轉盤 (140)受抵部 (20)停車開關組件 (21)外殼 (210)通孔 (211)凸條 (2110)(2111)斜導面 (2112)卡制面 (2113 )卡制部 (212)導槽 (213)油槽 (22)活塞 (220)卡鍵 (221)頂斜面 (222)防漏圈 (23)彈性元件 (24)踏紐 (240)凸緣 (241)底斜面 (30)卡止手段 (31)殼體 (310)腔室 (311)容油空間 (312)左外殼 (313)右外殼 (32)推桿 200948653 (320)軸孔 (34)復位彈性件 (40)油壓力導引手段 (410)螺孔 (420)入口 (422)出油螺栓 (4221)橫向孔 ❹ （4230)出油管 (33)卡銷 (35)彈性件 (41)下蓋 (42)閥組 (421)出口 (4220)軸向孔 (423)分油件 (43)油管 • 17200948653 IX. INSTRUCTIONS: [Technical field of the invention] The present invention relates to a cart-to-car transfer system, especially an author who can perform a start or release action by a single-direction treading action. The interaction between the card key on the piston and the inclined guide surface and the guide groove in the outer casing allows the card keys to alternate between the "high" and the bottom positions, and the hydraulic oil is injected into the locking means to make the latch on the locking means The effect of starting the parking and releasing the parking is generated by being embedded in the receiving portion of the car wheel. [Prior Art] There are various methods for the conventional trolley parking device, such as a parking device that is respectively disposed on both sides of the rear wheel, and a pedal is provided on the device, and a cog is provided under the pedal to make the pedal When the pedal is inserted, the cogs are embedded in the teeth provided on the rear wheel to stop the rear wheel. However, since the operation of stopping the vehicle is controlled by the left and right sides, the operation is inconvenient. In the event of an emergency panic, the operator often cannot immediately react to stop the tires on both sides, causing the trolley to shake and rotate. The design of the unilateral parking devices is not completely unsuitable for baby strollers. There are still baby strollers using this design device. Due to environmental constraints, this device is often used for infants who are slowly enemies or infants who run on smoother roads. Trolley, etc.; but for the speed of the higher or the steeper slope, based on safety considerations, the two rear wheels synchronous parking and fast operation are more important 'currently there are countries that will step on both sides of the synchronous parking Function 200948653 is listed as a safety standard for product design, such as the United Kingdom. Knowing or exposing a baby stroller parking device, some of which can satisfy the aforementioned functions, such as the German patent DE29818659U1, discloses a stroller brake device that can simultaneously hold or release two wheels, which is used by the brake device to step on or up A slanting plate member for linear reciprocating motion is coupled to a tubular slewing sleeve to move axially along the axle, and the brake bushing is designed to cover the petal-shaped frog fin of the axle, thereby providing a brake or The function of the release, the user must drive the car through the lower embossing mode, and the knuckle must be cocked up by the toe when the brake is to be released; and a brake device having the same function is also disclosed in U.S. Patent No. 5,460,399. The brake device uses two pedals that can swing up and down to link two brake levers, wherein the bottom of the pedal is provided with a beveled surface that maintains an angle between each other. The user must push the pedal through the inclined surface to brake the vehicle. At the same time, the rod pushes the wheel of the person to float. When you want to release the squat, you also need to lift the pedal up with the toe; Chinese people Japanese Patent No. 501506 discloses that when the user steps on the pedal surface to start a brake device to enter the brake state, the position of the link will also be raised, and the link will simultaneously drive the other group brake device into the brake state. Two sets of brake devices are used to clamp the wheels of the stroller. It can also enhance the braking effect of the stroller; the three known techniques have the same operation mode, so that the operation of the brake is completed by stepping on or pushing the pedal by the toe, although the operation mode is It's simple, but the ## method of picking up the pedal with a full-fledged disaster can (4) harm the user's upper. 200948653 ❷ In addition, the oil pressure guiding means in the baby stroller parking device mostly uses a cable to guide the start and release of the parking device. It is known to expose the baby stroller parking device. For example, the patent of the US Patent No. 5,713,585 proposes this patent. A safety brake device for a stroller is disclosed. The safety brake device can limit the wheel money when the user leaves the stroller (4). If the infant wants to push the baby (10), the baby device must be released to move the baby carriage; The brake device further comprises a parking device (4) arranged in the movable armrest of the movable device. The user must hold the brake grip to apply the force to disengage the parking device; the prior art operation mode is disclosed. The user completes the operation of braking or unloading the vehicle by means of the cable guiding parking device. The operation mode is simple, but if the user walks on the New Slope, the angle of the grip is not easy to be activated or released by the user. Brake device, and the guiding device uses indium 1 to slow down the cable, one [invention] The main purpose of the present invention is Providing a manual parking problem that can solve the conventional vehicle, the hydraulic pressure parking H achieves this--the technical means includes a parking switch assembly, an oil pressure guiding means and a locking means, the parking switch assembly And the oil pressure guides the hand P: plug and the outer casing, and the outer key of the piston is stopped by the convexity in the outer casing: the inclined guide surface and the alternating circulation of the guide groove act to force the tread button in the same direction. Brake start and ride to solve the problem that the conventional structural system must use 200948653 to lift the pedal with the toe of the foot and cause the slope damage and the inconvenience of operation. At present, the trolley parking device uses a steel cable or a connecting rod to drive the starting and releasing of the parking device, and the oil pressure guiding device of the present invention is a hydraulic device, and the oil pressure guiding device is connected to the parking switch assembly and the locking device. Between the parking switch assembly and the oil pressure guiding means, the locking means is driven to drive the pin to be inserted into the portion of the car's turntable to achieve the parking effect, thereby avoiding wear and tear between the used parts. Excessive clearance and loose steel cables cause a slow response to start and release the parking device, posing a hazard. Other objects and further applicable areas of the present invention will be apparent from the following detailed description. However, these detailed descriptions and the recited embodiments are for illustrative purposes only, as various changes and modifications made in the spirit and scope of the present invention are sufficient for those skilled in the art to The description and the drawings are clearly understood to be illustrative, and are not intended to limit the scope of the invention. [Embodiment] 基本··············································································· a body (10) fixed to a frame (12) having an axle (1) for providing wheels (13); a parking switch assembly (20) 'shown in Figures u and 6, the parking is open 200948653 The closing assembly device (2〇) is on the seat body (ίο), which comprises: a casing (21) 'please refer to FIG. 5 and FIG. 6, the casing (21) has a through hole extending vertically from the top and bottom ( 210) The inner wall of the upper half of the through hole (210) is provided with a plurality of ribs (211) equally spaced, and a guiding groove extending vertically between each two adjacent ribs (211) is formed. (212), the top end of the guiding groove (212) is closed, and the bottom end is an opening, and the bottom end of each of the protruding strips (211) is formed in a zigzag shape and has a first oblique guiding surface (2110) and a crucible inclined in the same direction. a second inclined guiding surface (2111), the first inclined guiding surface (2110) and one end of the second inclined guiding surface (2111) are connected by a steep clamping surface (2112), and the first oblique surface is made The guiding surface (2110) and the clamping surface (2112) enclose a concave locking portion (2113). The locking portion (2113) has a smaller depth than the guiding groove (212), and the first oblique guiding portion The other ends of the surface (2110) and the second oblique guiding surface (2111) respectively extend to one side of the corresponding rib (211), and the lower half of the through hole (210) of the outer casing (21) is formed with a lower portion An oil groove 0 (213" containing a hydraulic oil (22), the piston (22) is movably and rotatably penetrated into the through hole (21〇) of the outer casing (21) at the bottom end by the piston ( 22) controlling the volume of the oil sump (213), and controlling to make the hydraulic oil in the oil sump (213) into and out of the circumference of the piston (22) and the plurality of guide grooves (212) or the locking portion (2113) corresponding card keys (220), each top surface of the card key (220) is formed with a top bevel (221), wherein the bottom end of the piston (22) is provided with a leakage preventing ring (222); The elastic member (23) is configured to provide a return spring force for the upward movement of the piston (22) relative to the outer casing 200921653; and a step button (24) to which the step button (24) is sleeved ( 22) top The end 'and movably penetrates into the through hole (210) of the outer casing (21) at the bottom end. The outer peripheral surface of the step button (24) is provided with a flange (240) for embedding The guide groove (212) of the outer casing (21) is movable up and down along the guide groove (212) so that the step button (24) can only move up and down relative to the outer casing (21) without rotating the button ( 24) a bottom end is provided with a plurality of bottom slopes (241) corresponding to the top bevel (221) of the piston (22) of the card (220), wherein the step button (241) is opposite to the outer casing (241) 21) moving down, and contacting the top slope (221) of the button (220) of the piston (22) with the bottom slope (241), and the piston (22) can be placed under the outer casing (21) Shifting and rotating, causing the snap key (220) of the piston (22) to move into the guide groove (212) of the outer casing (21) to cause the piston (22) to be pushed by the elastic member (23) And the outer casing (21) is located at an upper position, or moved to the locking portion (2113) of the ridge (211) of the outer casing (2) and is located at a lower position relative to the outer casing (21); At least the means (30), please cooperate See the first, el, and eleventh figures, which are mounted on the base (1〇) and adjacent to a turntable (14) coaxially fixed to the axle (11) of the frame (12). The turntable (14) is provided with at least one receiving portion (14), the locking means (30) comprising a casing (31), a push rod (32), a pin (33) and a reset The elastic member (34) has a chamber (310) inside, and the push rod (32) is coupled to the bayonet (33) and movably received in the chamber (31〇) And the chamber 200948653 (310) is separated from an oil space (3丨丨) for the hydraulic oil to flow in, the bayonet (33) partially protrudes outside the casing (31) and the end faces the turntable (14) the receiving portion (140), the return elastic member (34) provides a return spring force of the push rod (32) when the hydraulic oil flows out of the oil bearing space (311); and an oil pressure guide The means (40) is connected between the parking switch assembly (2〇) and the locking means (3〇) as shown in FIGS. 1 a and 5, and includes a lower cover (41) and a valve block ( 42) and at least one oil pipe (43), wherein the lower cover (41) is disposed at the The oil tank (213) is sealed at the bottom of the shell (21), the valve block (42) includes an inlet (420) and at least one outlet (421), and the outlet (421) is connected to the end of the oil pipe (43) The other end of the oil pipe (43) is connected to the oil-receiving space (311) of the casing (31) of the locking means (30). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention or a preferred embodiment of the present invention, please refer to a specific embodiment of the valve group in the hydraulic pressure parking system of the present invention shown in FIGS. For example, the valve block (42) includes an oil discharge bolt (422) and an oil distribution member (423), and the oil separation member (423) is sleeved on the oil discharge bolt (42 2). 4 22) having an axial bore (4220) and at least one transverse bore (4221), the axial bore (4220) having an open end and being the inlet (420) of the valve block (42), The oil distribution member (423) is provided with at least one side of an oil supply pipe (4230) having the outlet (421), the oil discharge pipe (4230) is sleeved for the oil pipe (43), and the lower cover (41) has a screw hole ( 410) for screwing the oil discharge bolt (422) to position the valve block (42) on the lower cover (41). 200948653 2. For a preferred embodiment of the locking means of the present invention, please refer to the first, 9a, l〇a, 11 show a preferred embodiment of the locking means in the cart hydraulic parking system of the present invention, the number of the locking means (30) is two, the number of the turntable (14) For example, the number of the oil pipes (43) is two, and the number of the outlets (421) is two, and the oil space (3Π) of the casing (31) of each of the locking means (30) is via a corresponding The oil pipe (43), a corresponding outlet (421) is in communication with the weir set (42), and is further communicated with the oil groove (213) of the outer casing (21) via the valve block (42), and The end of the bayonet (33) of each of the locking means (3) faces the corresponding abutting portion (140) of the corresponding turntable (14). In a preferred embodiment of the locking means (30) of the present invention, the plurality of the abutting portions (140) on the turntable (14) are plural, and the receiving portions (14〇) are along the turntable. (14) One of the centers of the circle is equidistantly distributed such that the bayonet (33) is easily aligned with its abutment portion (140) to form a snap. Furthermore, in a more specific embodiment of the abutting portion (140) of the locking means (3) of the present invention, the receiving portion (14A) is a concave edge, and the concave edge is available for the bayonet ( 33) The end is pierced to form a card. 3. A specific embodiment of the locking means of the present invention, as shown in Figures 10a and 11, a specific embodiment of the locking means in the cart hydraulic parking system of the present invention, the housing (31) including a phase a left outer casing (312) and a right outer casing (313) are sleeved, and the push rod (32) is provided with a shaft hole (320) having an opening at one end, and the shaft hole (32〇) is provided with an elastic member ( 35) and one end of the latch (33), the latch (33) has a buffering force relative to the push rod (32) by the elastic force of the elastic member (35). 12 200948653 ) « The first preferred embodiment of the four invention parking switch assembly " month, see Figures 6, 7a, the preferred embodiment of the parking switch assembly in the cart hydraulic parking system of the present invention For example, the top surface of the step button (24) recognizes a hollow hole (243), and the top ring of the piston (22) is provided with a first mark (223) equidistantly equal to the guide groove (2丨2). The first mark (223) is used to display the non-brake state when a first mark η (223) is moved to the vent hole (243) position. © V. Second Preferred Embodiment of the Parking Switch Assembly of the Invention Referring to Figures 6 and 7b, a second preferred embodiment of the parking switch assembly of the cart hydraulic parking system of the present invention, the step (24) The top surface is provided with a hollow hole (243), and the top ring of the piston (22) is provided with a second mark (224) equidistantly and equal in number to the locking portion (2113), when it is a second When the mark (224) is moved to the position of the hollow hole (243), the second mark (224) is used to display the brake state. Among other things, a specific embodiment of the indicia (223) (224) is a color indicia. A third preferred embodiment of the parking switch assembly of the present invention, as shown in Figures 6, 7a, and 7b, is a third preferred embodiment of the parking switch assembly of the cart hydraulic parking system of the present invention. The top surface of the button (24) is provided with a hollow hole (243), and the top ring of the piston (22) is provided with a first mark (223) equidistant and equal in number to the guide groove (212) and equidistantly and in quantity. The second portion (224) of the locking portion (2113) is equal, and the first mark (22 3) and the second mark (224) are alternately arranged on the top surface of the piston (22). When a mark (223) is moved to the clock hole (243) position 13 200948653 'the first mark s (2 2 3 ) is used to display the non-brake state, when one of the second marks (224) is moved to the When the hole (243) is in the position, the second mark (224) is used to display the brake state. Wherein, a specific embodiment of the first mark (223) and the second mark (224) are respectively different color marks. VII. A fourth preferred embodiment of the parking switch assembly of the present invention, as shown in Figures 6, 7a, is a fourth preferred embodiment of the parking switch assembly of the cart hydraulic parking system of the present invention. (24) The bottom inclined surface (241) of the bottom end is terminated with a reverse inclined inclined surface (242), so that the inverted inclined surface (242) and the bottom inclined surface (241) are inverted V-shaped from one side. The reverse bevel (242) is used to stop the card key (22〇) to position the piston (22) after being rotated by an angle. The above description is only one of the possible embodiments of the present invention, and is not intended to limit the scope of the patent of the present invention, and other changes are made according to the order, characteristics and spirit of the following claims. Equivalent implementations are intended to be included within the scope of the invention. The specific boundary of the invention is not related to the similar features, and has practical and progressive nature. Patent to protect the legal rights of the applicant. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a studded combination of the hydraulic pressure parking system of the present invention in an unbraked state; 200948653 1b is a hydraulic pressure parking system of the present invention and is unbraked. The overall combination of the state is a schematic circle; the 2a is a schematic view of the overall combination of the brake hydraulic parking system of the present invention and the brake state; FIG. 2b is the overall hydraulic state of the trolley hydraulic parking system of the present invention. 3 is a schematic perspective view of the combination of the parking switch assembly and the oil pressure guiding means of the present invention; FIG. 4 is a schematic plan view of the combination of the parking switch assembly and the oil pressure guiding means of the present invention; The exploded view of the parking switch assembly and the oil pressure guiding device of the present invention; FIG. 6 is an enlarged exploded view of the parking switch assembly of the present invention; FIG. 7a is the parking switch assembly of the present invention and is in an unbraked state. Figure 7b is a schematic plan view of the combination of the parking switch assembly of the present invention and the brake state; * 8a is the stop of the present invention The switch assembly is in a non-brake state; FIG. 8b is a schematic cross-sectional view of the parking switch assembly of the present invention in a braking state; FIG. 9a is a combined perspective view of the locking device of the present invention and in an unbraked state; 200948653 9b is a three-dimensional cross-sectional view of the combination of the braking state of the present invention and the braking state; the first drawing is a three-dimensional sectional view of the locking means of the present invention and in an unbraked state; The figure is a perspective view of the locking means of the present invention and is in a braking state; and FIG. 11 is an exploded perspective view of the locking means of the present invention. ❹ [Main component symbol description] (10) Seat (11) Axle (12) Frame (13) Wheel (14) Turntable (140) Abutment (20) Parking switch assembly (21) Housing (210) Hole (211) rib (2110) (2111) oblique guide surface (2112) carding surface (2113) clamping portion (212) guide groove (213) oil groove (22) piston (220) card key (221) top slope (222) Leakproof ring (23) Elastic element (24) Tread button (240) Flange (241) Bottom bevel (30) Engagement means (31) Housing (310) Chamber (311) Oil bearing space (312) ) Left outer casing (313) Right outer casing (32) push rod 200948653 (320) Shaft hole (34) Reset elastic member (40) Oil pressure guiding means (410) Screw hole (420) Entrance (422) Oil discharge bolt (4221 ) Transverse hole ❹ (4230) Outlet pipe (33) Locating pin (35) Elastic member (41) Lower cover (42) Valve block (421) Outlet (4220) Axial hole (423) Oil separation member (43) Oil pipe • 17