1337106 九、發明說明： 【發明所屬之技術領域】1337106 IX. Description of invention: [Technical field to which the invention belongs]
本發明係有關-觀轉切管裝置，特別是指由一 C型殼部 及至少二單向限位組件組成之旋轉切管裝置，其兼具可在狹窄 且有障礙物之空間内連續操作、符合人體工學便於單手操作、 可彈性更換不同尺寸讀轉切管單元以及可搭配—延伸施力 握柄在一狹窄空間中更易施力之優點及功效。 【先前技術】 傳統之切管裝置’主要包括下列幾種： [1]參閱第一圖，此為傳統之迷你切刀7〇，其具有一本 體7卜一可動體72及一進刀旋在丑73。該本體71上設有一導 軌m及二滾輪712省可動體72係可在該本體71之導軌71】 上滑移’ X，該可動體72上設有—切刀72卜使用時係先裝 入-待切管件9〇，再旋轉該進刀旋紐73使該切刀仞具有 預定之進刀深度，之後將該迷你切刀7Q旋轉數圈；再進刀 再旋轉，重麟述動作直_待姆件9G切斷為止。 其主要缺點為不好抓握、無法自動 无目動進刀、必須旋轉360度 以上且操作極費力。 [2]參閱第 具有一基座81 圖 此為傳統之自動進刀切管裝置80，其 能量儲存部82及二滚輪83。該能量儲存 部82係為1雜之可難變縣構，1峡在絲錢 上而另端設有一切刀821。使用時係將—待切管件 90裝入 5 1337106 裝入後會推頂該能量儲存部δ2變形且切刀82i略為後退此 時，迫使該_ 821具有1刀之力量，當使該自動進刀切管 裝置80與錯切管件9Μ目對轉時此切刀似將逐漸對該 待切管件90進刀，最後切斷。 缺點仍有好抓握、只能適⑽定尺寸之待切管件 9〇(太大或太小均不歧用）、必須旋轉删度以上且操作 力。 、 [3] 參閱第三圖，料傳統錢料切f裝置⑼，其包 括本體6卜一柄部62、一進刀旋鈕63、一旋轉單元64及 —组切刀65。該組切刀65係設於該旋轉單元64上，該旋轉 單π 64係可在該本體61中旋轉’當該旋轉單元64旋至某— 位置時，恰可透過該進刀旋鈕63之旋轉來達到進刀或退刀之 目的，但無法自動進刀。 [4] 如第四及第五圖所示，此為傳統之有柄式切管裝置 95，其包括一旋轉體95Α及一對外殼95Β，該旋轉體95Α具有 一切刀951、二滾輪952、一進刀旋鈕953。該對外殼95Β係 以兩片體954對合而成。此旋轉體95Α係可單向旋轉，但由於 焚轉體95Α及進刀旋鈕953會外凸’在旋轉時容易卡到旁邊之 障礙物。 然而，管件切除之工作，可能發生在許多場所，兹舉下列 之實際案例來說明： Τ-.The invention relates to a view-turning pipe cutting device, in particular to a rotary pipe cutting device composed of a C-shaped shell portion and at least two one-way limiting components, which can be continuously operated in a narrow and obstacle-free space. It is ergonomic and easy to handle with one hand. It can be flexibly replaced with different sizes of read and cut tube units and can be combined with the advantages and functions of extending the force grip in a narrow space. [Prior Art] The conventional pipe cutting device' mainly includes the following: [1] Referring to the first figure, this is a conventional mini cutter 7〇, which has a body 7 and a movable body 72 and a feed screw Ugly 73. The main body 71 is provided with a guide rail m and two rollers 712. The movable body 72 is slidable on the guide rail 71 of the main body 71. The movable body 72 is provided with a cutter 72. - the pipe member to be cut is 9 turns, and the feed knob 73 is rotated to make the cutter blade have a predetermined infeed depth, and then the mini cutter 7Q is rotated a few times; then the knife is rotated again, and the operation is repeated. Wait until the 9G is cut off. The main disadvantages are that it is not easy to grasp, can not automatically move without a eye, must be rotated more than 360 degrees and the operation is extremely laborious. [2] Reference to a pedestal 81. This is a conventional automatic feed pipe cutting device 80 having an energy storage portion 82 and two rollers 83. The energy storage unit 82 is a difficult-to-change county structure, and one gorge is on the silk and the other end is provided with a knife 821. When in use, the pipe to be cut 90 is loaded into 5 1337106. After loading, the energy storage portion δ2 is deformed and the cutter 82i is slightly retracted. At this time, the _821 is forced to have a force of 1 knife when the automatic feed is made. When the pipe cutting device 80 and the miscut pipe member 9 are reversed, the cutter will gradually feed the pipe to be cut 90 and finally cut. The shortcomings are still good grip, only suitable for (10) the size of the pipe to be cut 9 〇 (too big or too small are not used), must be rotated above the degree of operation and operating force. [3] Referring to the third figure, a conventional material cutting device (9) is provided, which comprises a body 6 a handle 62, a feed knob 63, a rotary unit 64 and a set cutter 65. The set of cutters 65 is disposed on the rotating unit 64, and the rotating single π 64 can be rotated in the body 61. When the rotating unit 64 is rotated to a certain position, the rotation of the feeding knob 63 is just transmitted. To achieve the purpose of feeding or retracting, but it is not possible to automatically feed. [4] As shown in the fourth and fifth figures, this is a conventional shank type pipe cutting device 95, which includes a rotating body 95A and a pair of outer casings 95A. The rotating body 95 has all the blades 951 and two rollers 952. One feed knob 953. The pair of outer casings 95 are formed by joining two sheets 954. This rotating body 95 can be unidirectionally rotated, but since the incinerator 95 and the feed knob 953 are convex, it is easy to get stuck to the obstacles when rotating. However, the work of pipe removal may occur in many places, and the following practical cases are used to illustrate: Τ-.
^ J 6 1337106 [a]在-厨房流理台水槽下方進行切管作業。如第六及第 七圖所不’―般水槽之·水龍頭會連接-冷水管97及-熱水營 98 ’且水槽下方另有一排水管⑽。若採用傳統之迷你切刀川 . 錢傳統之自動進胸妓置8G來切管，水紅人必須臥倒 . 腰伸手至水槽下方的冷水㈣或雜水管98的位置進行 ' 切管作業（參閱第六圖），其主要缺點為不好抓握、益法自動進 刀（指迷你切刀7G)、必須旋轉咖度以上(指迷你切刀7〇邀 • 自動進刀切管裝置8G)且操作時極費力，工作者因姿勢不良易 :麟背痛及手臂酸痛。然而，若是採用前述之旋轉式切管裝置 6〇或有柄式切管裝置95來進行切管«，由於空間不足，兮 旋轉式切管裝置60或該有柄式切管裝置95在旋轉時，會有置 亡不易以及撞到牆壁96或相鄰之管件之問題，如第七圖所 根本,"、法作#此外，若是要切除位於牆壁㈨與水槽間 • 之内凹空間中的管部971或_如第六圖所示），更是無法施 工〇 W貝⑽下之複雜管路中工作，如第八圖所示， 右在某銷爐（射未示)之下方的某四根管線93a、娜、咖及 13D及u型障礙93E(例如為牆壁)之間，希望對内部之管線93C 進行W作業’傳統之触㈣7G之物輪73可能會碰及 目鄰官線93B、93D或是U型障礙93E。若改用旋轉式切管裳 置即，當要咬合在該管線93C上時，由於咬合缺口與柄部似 7 1337106 9〇度其柄部62將會卡住93a或93d使其無法置入；若改 用傳狀自動進刀切钱置80,也會有不錄握或手臂不夠 長之問題。再者，若改有柄式切管裝置95，其凸出之進刀旋 紐953及旋轉體95在工作時會編度旋轉，也容易撞到旁邊 之物體。 因此’有必要研發新技術，以解決上述缺點。 【發明内容】^ J 6 1337106 [a] Pipe cutting operations under the sink of the kitchen counter. As shown in the sixth and seventh figures, the faucet of the sink will be connected - the cold water pipe 97 and the - hot water camp 98 ' and there is a drain pipe (10) under the water tank. If you use the traditional mini-cutting knife. The traditional Chinese automatic chest is set to 8G to cut the tube, the water red person must fall down. The waist stretches out to the position of the cold water (4) or the miscellaneous water pipe 98 below the sink for the pipe cutting operation (see The sixth picture), its main disadvantages are not easy to grasp, easy to enter the knife (referred to as the mini cutter 7G), must be rotated above the coffee (referring to the mini cutter 7〇 invitation • automatic feeding and cutting device 8G) and The operation is extremely laborious, and the worker is inconvenient due to poor posture: Lin back pain and sore arm. However, if the above-described rotary pipe cutting device 6〇 or the shank pipe cutting device 95 is used to cut the pipe «, due to insufficient space, the rotary pipe cutting device 60 or the shank pipe cutting device 95 is rotating. There will be problems in that it is not easy to quit and hit the wall 96 or adjacent pipe fittings, as shown in the seventh figure, ", method made # in addition, if it is to be cut in the concave space between the wall (nine) and the sink The pipe part 971 or _ as shown in the sixth figure) is not able to work in the complicated pipeline under the 贝W shell (10), as shown in the eighth figure, right below a certain pin furnace (not shown) Between the four pipelines 93a, Na, coffee and 13D and u-type obstacles 93E (for example, walls), it is desirable to perform W operation on the internal pipeline 93C. The traditional touch (4) 7G object wheel 73 may touch the adjacent official line. 93B, 93D or U-shaped obstacle 93E. If the rotary tube is used instead, when it is to be engaged on the line 93C, the handle 62 will be stuck 93a or 93d so that it cannot be placed because the bite is not 7 1337106 9 degrees. If you use the automatic feed to cut the money and set the 80, there will be problems with not holding the hand or the arm is not long enough. Further, if the shank type pipe cutting device 95 is modified, the bulging infeed knob 953 and the rotator 95 will be rotated during operation, and it is easy to hit the object next to it. Therefore, it is necessary to develop new technologies to solve the above shortcomings. [Summary of the Invention]
本土明之主要目的，在於提供一種旋轉切管裝置，其係可 在狹窄且有障礙物之空間内連續操作。 '、 毛月之人目的，在於提供一種旋轉切管裝置，其係符 合人體工學，方便使用者單手操作。 本么月之X目的’在於提供—種旋轉切管裝置，其可彈 性更換不同尺寸之旋轉切管單元。The main purpose of the local Ming is to provide a rotary pipe cutting device that can operate continuously in a narrow and obstructed space. The purpose of the Maoyue is to provide a rotary tube cutting device that is ergonomic and convenient for the user to operate with one hand. The purpose of this month's X is to provide a rotary pipe cutting device that can elastically replace different sizes of rotary pipe cutting units.
本發明之再—目的，在於提供—觀轉切管裝置，並可於 配一延伸施力握柄在-狹窄纠中更易施力。 、。 本發明係為一種旋轉切管裝置，其包括： ^型殼部，係具有—容納空間、—外緣部、—對相對旋 轉内表面及―開口寬度；該容納空間係肋容納-旋轉切管單 疋，猶轉切管單元具有—對_轉外表面…切刀、至少 ft —自動進刀機構及至少二限位組件凹部；該對相對旋 轉内表面其中之一設有—環狀之單向棘齒部；該C型殼部斑該 方疋轉切官早讀具有相同之—旋轉㈣：又，每—環狀之單向 8 (S :) 1337106 棘齒部具有複數個斜齒面及垂直擋面；該自動進刀機構係用以 使該切刀能自動進刀； 至少二單向限位組件，其間隔大於該開口寬度且分別設於 4限位組件凹部内，每一單向限位組件具有一斜導面、一_^止 月動塊及推力產生部；該斜導面係對應該單向棘齒部 之預定的斜齒面，該卡止面翻以抵住鮮向齡部之預定的A further object of the present invention is to provide a view-turning and cutting device, and to provide an extended force-applying grip in the narrowing correction. ,. The present invention is a rotary pipe cutting device comprising: a casing portion having a receiving space, an outer edge portion, a pair of opposite rotating inner surfaces, and an opening width; the receiving space rib receiving-rotating pipe The single-turn, still-turning pipe unit has a pair of _ turn outer surface ... cutter, at least ft - automatic feed mechanism and at least two limit assembly recesses; one of the pair of relatively rotating inner surfaces is provided with a ring-shaped single To the ratchet portion; the C-shaped shell portion has the same rotation-cutting early reading (four): again, each-ring one-way 8 (S:) 1337106 ratchet portion has a plurality of oblique tooth surfaces And a vertical blocking surface; the automatic feeding mechanism is configured to enable the cutting tool to automatically feed the knife; at least two one-way limiting components, the spacing being greater than the opening width and respectively disposed in the recess of the 4 limiting component, each single The limiting component has an oblique guiding surface, a y ^ yoke moving block and a thrust generating portion; the inclined guiding surface is corresponding to the predetermined oblique tooth surface of the one-way ratchet portion, and the locking surface is turned over to resist the fresh Pre-ordered
直擋面藉此’使该c型殼部與該旋轉切管單元之間只能單 向的相對旋轉。 本毛明之上述目的與優點，不難從下述所選用實施例之詳 細說明與關巾，獲得深入暸解。 茲以下列貫施例並配合圖式詳細說明本發明於後： 【實施方式】 二閱第九、第十、第十—及第十二圖，本發明係為-種旋 轉B裝置’其包括一 C型殼部1〇及至少二單向限位組件洲。The straight facing surface thereby causes a relative rotation between the c-shaped shell portion and the rotary tube cutting unit in a single direction. The above objects and advantages of the present invention are not difficult to obtain in-depth understanding from the detailed description of the selected embodiments below. The present invention will be described in detail below with reference to the following drawings: [Embodiment] Referring to the ninth, tenth, tenth, and twelfth drawings, the present invention is a rotary B device' A C-shaped shell portion 1 〇 and at least two unidirectional limit components.
關於该C型殼部10，係具有一容納空間11'-外緣部12、 =相對旋轉内表面13及—開σ寬度w;該容納空間u係用 内旋轉切皆單元2〇，該旋轉切管單元2〇具有一對相對 Z外表面21、—切刀22、至少二滾輪烈、—自動進刀機構 一至少二限位組件凹部25;該對相對旋轉内表面13豆中之 ΓΓ有—環狀之單向棘齒部1該C型殼部Π)與該旋轉切 係具有相同之—旋轉心軸χ; χ，每一環狀之單向 D 31具有複數個斜齒面_及垂直擋面131Β;該自動 5 9 1337106 進刀機構24係用以使該切刀22能自動進刀； 關於前述之兩個單.向限位組件30，其間隔大於該開口寬 度W且分別δ又於该限位組件凹部25内，每一單向限位組件3〇 係具有一斜導面3卜一卡止面犯、-滑動塊33及-推力產生 . 部34 ;該斜導面31係對應該單向棘齒部131之預定的斜齒面 • 〗31Α，該卡止面32係用以抵住該單向棘齒部131之預定的垂 直擋面131Β，藉此，使該C型殼部1〇與該旋轉切管單元2〇 • 之間只能單向的相對旋轉。 更詳細的說，該C型殼部1〇係包括兩個半殼部1〇Α、1〇Β 對合並透過複數個固定元件耽鎖固而成，當然，也可修改為 一大一小或是多個組合之等效結構。 其次，該切刀22係具有一切刀轉軸221及一傳力部222。 該自動進刀機構24係具有一導引弧片241及一彈力產生 元件242 ;該導引弧片241係固定於該c型殼部丨〇並用以限 鲁 制该切刀轉軸221之移動路徑，當該切刀22接觸-管狀工件 . 5〇(如第十三及第十四圖所示）而旋轉時，該切刀22之旋轉使 : &在该導引弧片241上移動’並使其與該旋轉心軸X間之工作 距離S逐漸縮小而能夠自動進刀；該彈力產生元件242係用以 對5玄切刀之傳力部222施加一壓迫力。 關於本發明之實際操作，如第十四圖所示，首先，針對預 疋進行切官之管狀工件5〇的外徑大小，裝入適當之旋轉切管 罩元20 ;或是直接選擇一已組裝完成之本發明。 將該管狀工件50置入’使用者可用單手握住本發明之c 型殼部H㈣定該管狀工件5Q，然後往倾轉一預定 之角度’即可帶動織轉切管單元2Q產生自動進刀，由於自 動進刀之原理已為習知技術，在此不贅述。 因此，使用者可以很輕鬆的握住此c型殼部1〇(大約為手 掌可握之大小）’往復㈣-預定肢數次或數十次，即可逐 漸將該管狀工件5G切斷，在操作上㈣较，也*必交互換 手’以上所述為本發明之第一實施例。 此外，參閱第十八圖，此為本發明之第二實施例，其中， 該C型殼部10又具有-連接凹π 14及—延伸施力握柄4〇， 該連接凹口 14係用以將該延伸施力握柄4〇固定於該c型殼部 10上，如此一來，多了該延伸施力握柄4〇後，施力臂較長， 操作上更省力，更能輕鬆的切斷管狀工件5〇。 更重要的是，假設該管狀工件50旁邊有兩個鄰近之障礙 物51’如第十四圖及第十五圖所示，使得工作容許角度θ 1(如 第十六圖所示）相當有限，例如只有80度。此時使用者先抓握 該C型殼部10上的延伸施力握柄4〇，並由一第一位置PR如 第十六圖所示）旋動一工作角度02至一第二位置p2(如第十 七圖所示），此時由於每一單向限位組件3〇卡住該單向棘齒部 131，所以該旋轉切管單元2〇與該c型殼部1〇係同步轉動， :進仃進刀切割之動作。之後，再由該第二位置P2回到 Z置P1’此時’每—單向限位組㈣會滑過該單向棘齒部 ，所以’只有該C型殼部1G旋轉回來，該旋轉切管單元 约並未移動。之後，再次由該第—位置P1旋至該第：㈣P2, 進行下-奴進刀_，獨重覆，最後可_。因此，縱使 f障礙物51存在’本發明所需之工作角度…可以很小換 言之，本發明可在狹窄且有障礙物之空間内連續操作。 此外，如苐十九圖所示，此為本發明之第三實施例，其中， 該連接凹口 14最好是為—謂凹座，具有四侧表面ΐ4ι， 每一内表面141設有-定位凹部H2 ;該延伸施力握柄4〇上 係設有一相對應該連接凹座14之方形凸柱41，其具有四個外 表面411，其中之一外表面411設有一定位彈性凸部412，用 以對應卡入相對應之定位凹部142中而能暫時固定。 當然’該延伸施力握柄40可為L型結構(如第二十圖所示 之第四實施例）或是兩節式結構（如第二十一圖所示之第五實 施例）。在第四實施例中，可先將該延伸施力握柄4〇與該c型 殼部10分離’待本發明已咬合於此待切斷之管線後，再 將該延伸施力握柄40插入此連接凹座14中而卡合固定為一 體，便於後續之切管作業’換言之，縱使旁邊有三個管線93A、 93B、93C以及U型障礙93E(例如為牆壁），本發明仍可鑽過空 隙先咬合該管線93C後再連接此延伸施力握柄4〇，達到習知 裝置所無法達到之作業方式。 另外，在一些深孔或手不易伸及處，如第六圖之管部 97K或981) ’可以採用本發明之第五實施例之方式來解決。 如第二十—圖所示，該延伸施力握柄4G是兩節式的，其具有 第桿。ΜΟΑ、-第二桿部備及一樞轉部概，可以在深 /或手不易伸及處’先咬合，再連接此延伸施力握柄，然 後_待切之管部971為旋轉軸來往復旋轉某一角度，完成另 一習知裝置所無法達成之應用範圍。亦即，此兩節式之設計可 改變成任意之插人角度，以便提高閃過各輯錄之功效及適 用範圍。 綜上所述，本發明之優點及功效可歸納為： [1]可在狹窄且有障礙物之空間内連續操作。只要在障礙 物門有適田之工作角度，本發明即可在一小角度内往復動作 而自動進胸管，非常適合在鄰近障礙物及現有t路之場所操 作若搭配L型或疋兩節式的延伸施力握柄，效果更佳。、 [2] 符合人體工學便於單手操作。由於本發明之。型殼部 適合使用者之單手抓握1於在無障㈣施力鶴—預定角 度，可360度旋轉’在有障礙時，可在一小角度（即工作角度) 範圍内不斷往復。對於切管健而言，操作上十分舒適且^ 暢，進而可提升切管作業之效率。 、 [3] 可彈性更換不同尺寸之旋轉切管單元。本發明之❻ 133710ό 木用gu之尺寸，但其内可裝人不同切管細之旋轉切管 早7C ’例如··有三個旋轉切管單元，其外表面之尺寸相同，但 切刀之工作距離分別為12_至18腿、咖 至24mm與24mm至 _三款(分取「小尺寸〆中尺寸」、「大尺寸」簡稱）。 此二放都可裝人’故’使用者可以選擇適合的—組裝入來使 用’因此’可雜更換不同尺寸之旋轉切管單元。 [4]可搭配-延伸施力握柄在—狹窄空間中更易施力。當 在該連接凹口上將該延伸施力握_定_ C型殼部後，施力 之力臂變長，操作上更省力。 以上僅是藉由實施_細制本發明，對於該實施例 所做的任何簡單修改與變化，皆不脫離本發明之精神與範圍。 由以上詳細說明，可使熟知本項技藝者明瞭本發明的確可 達成前述目的，實已符合專利法之規定，爰提出發明專利申請。 14 1337106 【圖式簡單說明】 第一圖係傳統之迷你切刀之示意圖 ^圖係傳統之自動進⑽管裝置之示意圖 . 弟二_傳統之旋轉式姆裝置之示意圖 . 細圖係傳統之有柄式切管裝置之示意圖 帛五關第四圖之側面示意圖 第六圖係傳統之工作場所一之示意圖 • 第七圖係傳統之工作場所一之橫剖示意圖 第八圖係傳統之工作場所二之示意圖 第九圖係本發明之立體圖 第十圖係本發明之另-肢之立體圖 第十-圖係本發明之c型殼部分解後之示意圖 第十二圖係本發明之旋轉切管單元之分解後之示意圖 第十三圖係本發明之旋轉切管單元之内部組件之示意圖 • 第十四圖係本發明之實際操作時之示意圖 第十五圖係本發明之第二實施例之示意圖 第十六圖係本發明之第二實施例之操作過 / 、不思圖 ’ 冑十七圖係本發明之第二實施例之操作過程二立 > 、不思圖 第十八圖係本發明之第二實施例之操作過程三 ^ 又示思圖 第十九圖係本發明之第三實施例之示意圖 第二十圖係本發明之第四實施例之示意圖 第二十一圖係本發明之第五實施例之示意圖 (s ') 1337106 22、65、721、821、951 切刀 【主要元件符號說明】 10 C型殼部 10C固定元件 12外緣部 131單向棘齒部 131B垂直擋面 141内表面 20旋轉切管單元 222傳力部 24自動進刀機構 242彈力產生元件 30單向限位組件 32卡止面 34推力產生部 40A第一桿部 40C枢轉部 411外表面 50管狀工件 60旋轉式切管裝置 62柄部 64旋轉單元 10A、10B半殼部 11容納空間 13相對旋轉内表面 131A斜齒面 14連接凹口 142定位凹部 21相對旋轉外表面 221切刀轉軸 23、712、83、952 滾輪 241導引弧片 25限位組件凹部 31斜導面 33滑動塊 40延伸施力握柄 40B第二桿部 41方形凸柱 412彈性凸部 51障礙物 61、71本體 63、73、953進刀旋紐 70迷你切刀 16 1337106 711導執 80自動進刀切管裝置. 82能量儲存部 93A、93B、93C、93D 管線 95有柄式切管裝置 95B外殼 96牆壁 97卜981管部 99排水管 X旋轉心軸 P1第一位置 72可動體 81基座 90待切管件 93E U型障礙 95A旋轉體 954片體 97冷水管 98熱水管 W開口寬度 S工作距離 P2第二位置The C-shaped shell portion 10 has a receiving space 11'-outer edge portion 12, a relative rotating inner surface 13 and an opening σ width w; the receiving space u is internally rotated to cut the unit 2〇, the rotation The pipe cutting unit 2 has a pair of opposite Z outer surfaces 21, a cutter 22, at least two rollers, an automatic feed mechanism, and at least two limit assembly recesses 25; the pair of relatively rotating inner surfaces 13 are in the beans - the annular one-way ratchet portion 1 of the C-shaped shell portion) having the same rotation axis as the rotary cutting system; χ, each annular one-way D 31 has a plurality of oblique tooth surfaces _ and The vertical blocking surface 131Β; the automatic 5 9 1337106 feeding mechanism 24 is used to enable the cutting knife 22 to automatically feed the knife; with respect to the two single-direction limiting components 30, the spacing is greater than the opening width W and respectively δ Further, in the limiting component recess 25, each of the one-way limiting components 3 has an oblique guiding surface 3, a locking surface, a sliding block 33 and a thrust generating portion 34; the inclined guiding surface 31 Corresponding to the predetermined oblique tooth surface of the one-way ratchet portion 131, the locking surface 32 is for abutting against the predetermined vertical stop surface 131 of the one-way ratchet portion 131. Thereby, so that the C-shaped housing portion relative rotation between the rotating pipe cutting 1〇 2〇 unit • and only unidirectional. In more detail, the C-shaped shell portion 1 includes two half-shell portions 1〇Α, 1〇Β, which are combined and locked by a plurality of fixing members, and may of course be modified to be one large or one small or Is the equivalent structure of multiple combinations. Next, the cutter 22 has all the cutter shafts 221 and a force transmitting portion 222. The automatic feeding mechanism 24 has a guiding arc piece 241 and an elastic force generating element 242; the guiding arc piece 241 is fixed to the c-shaped casing part 丨〇 and is used to limit the movement path of the cutter rotating shaft 221 When the cutter 22 contacts the tubular workpiece. 5〇 (as shown in the thirteenth and fourteenth figures), the rotation of the cutter 22 causes: & to move on the guide arc 241. And the working distance S between the rotating mandrel X and the rotating mandrel X is gradually reduced to automatically feed the knife; the elastic generating element 242 is used to apply a pressing force to the force transmitting portion 222 of the 5th cutting blade. Regarding the actual operation of the present invention, as shown in FIG. 14 , firstly, the outer diameter of the tubular workpiece 5 切 for the pre-cutting is loaded into the appropriate rotary tube cover 20; or directly The assembled invention is completed. The tubular workpiece 50 is placed into the user's c-shaped shell portion H (four) of the present invention to hold the tubular workpiece 5Q, and then tilted to a predetermined angle 'to drive the weaving and cutting unit 2Q to automatically advance. Knife, since the principle of automatic feed has been a conventional technique, it will not be described here. Therefore, the user can easily hold the c-shaped shell portion 1 (about the size of the palm grip) 'reciprocating (four) - predetermined limbs several times or dozens of times, and the tubular workpiece 5G can be gradually cut off. In operation (4), it is also necessary to change hands. The above description is the first embodiment of the present invention. In addition, referring to FIG. 18, this is a second embodiment of the present invention, wherein the C-shaped shell portion 10 has a connecting recess π 14 and an extending force grip 4〇, and the connecting recess 14 is used. The extending force applying handle 4〇 is fixed to the c-shaped shell portion 10, so that after the extending force applying the grip 4〇, the force applying arm is longer, the operation is more labor-saving, and the operation is easier. Cut the tubular workpiece 5〇. More importantly, it is assumed that there are two adjacent obstacles 51' beside the tubular workpiece 50 as shown in the fourteenth and fifteenth figures, so that the work allowable angle θ 1 (as shown in Fig. 16) is rather limited. For example, only 80 degrees. At this time, the user first grasps the extended urging grip 4〇 on the C-shaped shell portion 10, and rotates a working angle 02 to a second position p2 by a first position PR as shown in FIG. (As shown in FIG. 17), at this time, since each one-way stopper component 3 is stuck to the one-way ratchet portion 131, the rotary tube cutting unit 2 is synchronized with the c-shell portion 1 Rotate, the action of cutting into the knife. Then, the second position P2 is returned to the Z position P1'. At this time, the 'one-way limit group (four) will slide over the one-way ratchet portion, so 'only the C-shaped shell portion 1G rotates back, the rotation The tube cutting unit has not moved. After that, the first position P1 is again rotated to the first: (four) P2, and the lower-slave knife _ is performed, and the last is _. Therefore, even if the f obstacle 51 is present, the working angle required for the present invention can be made small, in other words, the present invention can be continuously operated in a narrow and obstacle-free space. Further, as shown in FIG. 19, this is a third embodiment of the present invention, wherein the connecting recess 14 is preferably a recess having a four-sided surface ΐ4ι, and each inner surface 141 is provided with - The positioning recess H2 is provided with a square protrusion 41 corresponding to the recess 14 and having four outer surfaces 411. One of the outer surfaces 411 is provided with a positioning elastic protrusion 412. It can be temporarily fixed by being inserted into the corresponding positioning recess 142. Of course, the extended force applying grip 40 may be an L-shaped structure (as in the fourth embodiment shown in Fig. 20) or a two-section structure (as in the fifth embodiment shown in Fig. 21). In the fourth embodiment, the extended force applying grip 4〇 may be first separated from the c-shaped shell portion 10. After the invention has been bitten to the pipeline to be cut, the extended force applying grip 40 is further applied. Inserted into the connecting recess 14 and snap-fitted into one body to facilitate subsequent pipe cutting operations. In other words, even if there are three pipelines 93A, 93B, 93C and U-shaped obstacles 93E (for example, walls), the present invention can still be drilled. The gap first engages the line 93C and then connects the extended force grip 4 to achieve a working mode that cannot be achieved by conventional devices. Further, in the case where some deep holes or hands are not easily stretched, the tube portion 97K or 981)' as in the sixth drawing can be solved by the fifth embodiment of the present invention. As shown in the twentieth to the figure, the extended force applying grip 4G is of a two-section type having a second rod. ΜΟΑ, - the second pole part and a pivoting part, can be engaged in the deep / or the hand is not easy to stretch, and then connect the extended force grip, and then the tube part 971 to be cut is the rotating shaft Rotating a certain angle back and forth to complete the application range that cannot be achieved by another conventional device. That is, the two-section design can be changed to any angle of insertion to improve the effectiveness and scope of flashing through the albums. In summary, the advantages and effects of the present invention can be summarized as follows: [1] Continuous operation in a narrow and obstructed space. As long as there is an angle of work in the obstacle door, the invention can automatically reciprocate in a small angle and enter the chest tube, which is very suitable for operation in the vicinity of the obstacle and the existing road, if it is matched with L-shaped or two-section. The extended force-applying handle provides better results. , [2] Ergonomic for easy one-handed operation. Thanks to the invention. The shell part is suitable for the user's one-handed grip 1 in the case of a barrier-free (four) force-forced crane - a predetermined angle, which can be rotated 360 degrees. - When there is an obstacle, it can continuously reciprocate within a small angle (ie, working angle). For the pipe cutter, the operation is very comfortable and smooth, which can improve the efficiency of the pipe cutting operation. [3] Flexible replacement of different sizes of rotary tube cutting units. The 133 133 710 本 用 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 133 The distance is 12_ to 18 legs, coffee to 24mm and 24mm to _ three (divided into "small size, medium size", "large size"). The two can be loaded with the user's choice, and the user can select the appropriate one to use the 'so' to replace the different sizes of the rotary tube cutting unit. [4] can be used with - extended force grip in the narrow space easier to apply force. When the extension is biased to the C-shell portion on the connection recess, the force arm of the biasing force becomes longer, and the operation is more labor-saving. The above is only a simplification of the present invention, and any simple modifications and changes to the embodiments are possible without departing from the spirit and scope of the invention. From the above detailed description, it will be apparent to those skilled in the art that the present invention can be achieved by the present invention, which is in accordance with the provisions of the Patent Law. 14 1337106 [Simple description of the diagram] The first picture is a schematic diagram of the traditional mini cutter. The diagram is a schematic diagram of the traditional automatic (10) tube device. The second diagram of the traditional rotary device. The fine picture is traditional. Schematic diagram of the shank pipe cutting device 帛五关 The side view of the fourth figure is the schematic view of the traditional workplace. The seventh picture is the traditional work place. The cross section of the traditional work site is the eighth. FIG. 9 is a perspective view of the present invention. FIG. 10 is a perspective view of another embodiment of the present invention. FIG. 10 is a schematic view of the c-shell portion of the present invention. FIG. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 13 is a schematic view showing the internal components of the rotary pipe cutting unit of the present invention. FIG. 14 is a schematic view showing the actual operation of the present invention. FIG. 15 is a schematic view showing a second embodiment of the present invention. The sixteenth embodiment is an operation of the second embodiment of the present invention, and that the operation of the second embodiment of the present invention is the second embodiment of the present invention. hair The second embodiment of the present invention is a schematic diagram of a fourth embodiment of the present invention. The twenty-first embodiment of the present invention is a twenty-first embodiment of the present invention. Schematic diagram of the fifth embodiment (s ') 1337106 22, 65, 721, 821, 951 cutter [main component symbol description] 10 C-shaped shell portion 10C fixing member 12 outer edge portion 131 one-way ratchet portion 131B vertical block Surface 141 inner surface 20 rotating tube unit 222 force transmitting portion 24 automatic feeding mechanism 242 elastic generating element 30 one-way limiting assembly 32 locking surface 34 thrust generating portion 40A first rod portion 40C pivot portion 411 outer surface 50 tubular Workpiece 60 Rotary pipe cutting device 62 Handle 64 Rotating unit 10A, 10B Half shell portion 11 Accommodating space 13 Relative rotating inner surface 131A Oblique tooth surface 14 Connection notch 142 Positioning recess 21 Relative rotating outer surface 221 Cutter shaft 23, 712 , 83, 952 roller 241 guide arc 25 limit assembly recess 31 oblique guide surface 33 sliding block 40 extension force grip 40B second rod portion 41 square boss 412 elastic convex portion 51 obstacle 61, 71 body 63, 73,953 into the knife knob 70 mini cutter 16 1337106 711 guide 80 automatic feeding and cutting device. 82 energy storage parts 93A, 93B, 93C, 93D line 95 with handle tube cutting device 95B housing 96 wall 97 981 tube part 99 drain tube X rotating mandrel P1 first position 72 movable body 81 base 90 to be cut pipe fitting 93E U-shaped obstacle 95A rotating body 954 piece body 97 cold water pipe 98 hot water pipe W opening width S working distance P2 second position
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