1314088 九、發明說明： 【發明所屬之技術領域】 ’特別是指其進氣控制褒 空間型態之創新設計者。 本發明係涉及一種氣動工具 置中之轉向切換及調速機構組設 【先前技術】 按，現有氣動工具結構中1314088 IX. INSTRUCTIONS: [Technical field to which the invention belongs] ‘In particular, it refers to the innovative designer of its air intake control 褒 spatial type. The invention relates to a steering switch and a speed governing mechanism set in a pneumatic tool. [Prior Art] Press, existing pneumatic tool structure
m ^ 通吊均組設有轉向切換機 構以$其作用端達成正反轉切換 、之目的，另設有調速機構 ，以達到調節作用端扭力大小之目的。 本發明所述之轉向切換及詷 人 挟及凋逮構造，特別是指一種整 合於氣動工具進氣控制閥部 ^^ ^ 之”、口構空間型態者，此種設 计由於使用者可用握持氣動 土 具的該f手直接進行操控， 具有極佳之操控方便性，故癟 文丨王故廣欠使用消費者之好評。 至於此種整合於新動工目t + 札動具進軋控制閥部位之習知轉向 切換及調速構造型態，培哨 交碰 …月6周閲臺灣專利公告號：200046、 石稱·氣動扳手之控氣構造之嗜宏 得坆之°亥案所揭，並請配合第1 、 習：：示（係參照該習知案之第2、4圖所繪製者），該 柝击丨構彳’组配工間特色’亦即該調速環70係組設於其 最㈣外周，該調速㈣外周所設之調氣孔71 1進氧通道72相對位，該轉向構件9〇則是組設於該調速 "的外置位置（即控制桿8〇的中段外周）；惟，此灌習 結構於實際應用上仍存在下述之問題點： 該習知結構就流路作動而言，士口第i圖所示，由於其 11'迷％ 7 0是組設在整體轉向及調速構件最鄰近進氣通道7 2 5 !314088 位置處’因此’其無論正轉帶動或反轉帶動之進氣動作 ，氣流73 (如第2圖所示）均必須先經過該調速環7〇之調 乳孔71，然而，此其間存在一問題點，由於氣動工具之正 轉帶動模式是為了鎖緊螺絲，此模式將因螺絲鎖入之目標 物堅硬程度不同而有所差異，故有必要透過該調速環70來 ^整扭力大小；但當反轉帶動模式時，由於是為了放鬆螺 4，但為使螺絲能最快速地被旋動帶出，其進氣端應達到 最大之流罝狀態為最佳；然而，前述習知結構設計，若吾 人在正轉帶動模式時將該調速環7G調整至扭力最小狀離， ，後再切換成反轉帶動模式使科，由於此模式之進氣流 夏狀態仍舊被該調速環7〇所於制 ”The m ^ tong hang group is equipped with a steering switching mechanism for the purpose of achieving positive and negative switching for its action end, and a speed governing mechanism is also provided to achieve the purpose of adjusting the torque of the working end. The steering switching and the squatting and stagnation structure of the present invention, in particular, a type of mouth space type integrated into the air intake control valve portion of the pneumatic tool, which is available to the user. The hand holding the pneumatic tool directly controls the hand, which has excellent control convenience. Therefore, the singer of the singer is widely owed to the consumer's praise. As for the integration of the new work item t + zh The conventional steering switch and speed control structure type of the control valve part, the whistle and the cross contact...The 6th week of the Taiwan Patent Publication No.: 200046, the stone control and the pneumatic control structure of the pneumatic wrench Uncover, and please cooperate with the first, syllabus:: show (refer to the figure drawn in the second and fourth figures of the syllabus), the sniper 丨 彳 'group match feature', that is, the speed control ring 70 The system is set at the outermost circumference of the fourth (four), and the air passage hole 71 1 provided on the outer circumference of the speed regulation (4) is opposite to the oxygen inlet passage 72, and the steering member 9 is disposed at an external position of the speed control (ie, control) The outer section of the middle section of the rod 8); however, the following problems exist in the practical application of the filling structure: In the case of the conventional structure, the flow diagram is shown in Fig. i, because the 11' fan is 70% set at the position of the overall steering and speed control member adjacent to the intake passage 7 2 5 !314088' Therefore, the airflow 73 (as shown in Fig. 2) must pass through the temperature regulating hole 71 of the speed regulating ring 7 regardless of the forward or reverse driving action, however, there is a problem in the meantime. Since the forward rotation mode of the pneumatic tool is to lock the screw, this mode will be different due to the hardness of the target locked by the screw, so it is necessary to adjust the torque through the speed adjustment ring 70; When the reverse driving mode is used to loosen the screw 4, in order to allow the screw to be rotated out most quickly, it is preferable that the intake end should reach the maximum flow state; however, the aforementioned conventional structural design, If the person adjusts the speed regulation ring 7G to the minimum torque when the forward rotation mode is in progress, and then switches to the reverse rotation mode to make the section, since the intake air flow state of this mode is still the speed regulation ring 7〇 System
At 疋衣所孜制故其扭力同樣為最小狀 恶，造成放鬆螺絲之速度緩慢的情形，故此時吾人將必須 該調速環之調整動作方能令其扭力加大，如此實 以成其操作上頗為不便難用之缺弊者。 疋以’針對上述習知氣動工呈 八之轉向切換及調速構造 用性之問題點：如何研發出-種能夠更具理想實 及方向者。’實有待相關業界再加以思索突破之目樺 :鐘於此’發明人本於多年從事相關產品之製造開發 /、δ又汁經驗，針對上述之目桿， ^ 4加设計與審慎， 終得一確具實用性之本發明。 、π 【發明内容】 本發明之主要目的，係在 生丨姑要^ 徒供—種氣動工具之進氣控 制裝置’其所欲解決之問題點，《進孔^ ’、十對1知氣動工具之轉 6 1314088 向切換及調速機構其正、反轉帶動模式之進氣流均須先經 過調速環而致使其反轉帶動模式時往往必須再調整該調速 環才能獲致較大扭力以快速放鬆螺絲，造成其使用操作不 便之問題點加以思索突破；所述進氣控制裝置之轉向切換 構造以及調速構造係整合於氣動工具之進氣切換間結構上 ’该轉向切換構造包括切換轉筒及切控鈕，該切換轉筒樞 切換閥之閥主體内部呈可旋轉；該調速構造則包At 疋 孜 故 故 故 故 故 故 故 故 故 故 故 故 故 故 故 故 故 故 故 故 故 故 故 故 扭 扭 扭 扭 扭 At At At At At At At At At At At At At At At At At At At At It is quite inconvenient and difficult to use.疋 ’ ’ ’ ’ ’ 针对 针对 针对 针对 针对 针对 针对 针对 针对 针对 针对 针对 针对 针对 针对 针对 针对 气动 转向 转向 转向 转向 转向 转向 转向 转向 转向 转向 转向 转向 转向 转向'There is a need for the relevant industry to think about the breakthrough of the biblily: Zhong Zhong' inventor has been engaged in the manufacturing and development of related products for many years, and δ and juice experience, for the above-mentioned eyes, ^ 4 plus design and prudence, the end It is a practical invention. π [Summary of the Invention] The main object of the present invention is to solve the problem of the problem of the air intake control device of the pneumatic tool of the raw material of the sputum, the "hole", the ten-to-one pneumatic Turning of the tool 6 1314088 To the switching and speed regulating mechanism, the positive and negative driving modes of the intake air flow must first pass through the speed regulating ring, so that when the reverse driving mode is adopted, the speed adjusting ring must be adjusted to obtain a larger torque. In order to quickly relax the screw, causing the problem of inconvenient use thereof, the steering switching structure and the speed control structure are integrated on the air intake switching structure of the pneumatic tool. The steering switching configuration includes switching. a rotating drum and a cutting control button, the inside of the valve body of the switching drum pivoting valve is rotatable; the speed regulating structure is packaged
，決問題之技術特點主要在於：所揭切換轉=二 特別設計呈僅與旋轉座之穿孔對位相通狀 心 ^弟一牙虱孔則與旋轉座相錯開；藉此，當轉 順向旋轉作動狀態時，1導 ，、、、 L…旦 π -導入之氣壓係為通過該旋轉座所 D又牙孔之〜I可調整狀態；而 日存，苴道Λ * " π 神丁主圯向紅轉作動狀態 接逸…… 係由切換轉筒之穿流空間導入後即直 刀、轉筒之第二穿氣孔，而為不經過旋 ::設穿孔之流量全開狀態，藉此讓氣動工具使用上：： 味，故“ 態為何，當切換至逆轉模式 螺轉：丑均為最大狀態，如此俾可讓氣動工具用以旋_ 螺絲時的速度得以提昇 八用以奴氣、 構造之蔚.Μ P t '、乍更可痛卻頻頻調整該調速 構w之麻須情事’達到使用更 之進步性者。 ，好用、工作更有效率The technical characteristics of the problem are mainly: the switch is switched to the second design, which is only in alignment with the perforation of the rotating seat, and the tooth is staggered from the rotating seat; thereby, when the rotation is reversed In the active state, the air pressure of the lead, π, L, π, 导入, 导入, 导入, 导入, I, I, π, π, π, π, π, π圯 红 红 红 ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... ...... 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换 切换Pneumatic tools use:: taste, so "when the state, when switching to the reverse mode screw: ugly is the maximum state, so that the speed of the pneumatic tool can be used to rotate the screw _ screw to improve the use of slavery, construction蔚.Μ P t ', 乍 可 却 却 却 却 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频 频
f實施方式;I 請參閱第3 、4 制裝置之較佳實施例 圖所示’係本發明氣動工具之進氣控 ’惟此等實施例僅供說明之用，在專 7 Ϊ3-14088 二C不受此、?構之限制；戶斤述氣動工具之進氣控制 =i㈣進氣切換闕、轉向切換構造以及調速構造 :，其中該轉向切換構造之功能，係藉以切換氣動工具ι〇 ，、轉子11 (如第6圖所示）之旋轉方向，所述調速構造之 功能係藉以調整韓子η之μ、* .丄<· 祕 正轉千11之轉速，本發明係將前述轉向切換 構造以及調速構造整合於翁 、乳動具10之進氣切換閥20結構 上甘：進氣切換_包括有一闊主體21、一開關闊桿22 ’其中該閥主體21係組設於氣動工具1〇之預定部位，該閥f Embodiments; I Please refer to the preferred embodiment of the 3rd and 4th devices as shown in the figure of the pneumatic control of the pneumatic tool of the present invention. However, these embodiments are for illustrative purposes only, in the special 7 Ϊ 3-14088 C is not restricted by this structure; the intake control of the pneumatic tool = i (four) intake switching 阙, steering switching structure and speed control structure: wherein the function of the steering switching structure is to switch the pneumatic tool ι〇 , the rotation direction of the rotor 11 (as shown in Fig. 6), the function of the speed control structure is to adjust the rotation speed of the Korean η μ, * . 丄 <· secret forward thousand 11, the present invention will The foregoing steering switching structure and the speed regulating structure are integrated in the structure of the intake switching valve 20 of the Weng and the milk implement 10: the intake switching _ includes a wide body 21 and a switch wide rod 22, wherein the valve body 21 is assembled At the predetermined part of the pneumatic tool 1〇, the valve
主體21概呈圓筒狀，其軸向之内端與氣動工具之進氣孔 這12相對位，閥主體21之頂相"就圖面而言）間隔設有呈 斜向間隔配置的順向進氣導孔23及逆向進氣導孔以分別盘 氣動工具1〇預設之順轉導流道13以及逆轉導流道14相對位 ’閥主體21之底側（就圖面而言）具一排氣口烈與氣動工 具1〇之排氣孔道15相對位；t玄開關閥桿22係軸向穿置於閥 主體21之内部巾央，該開關閥桿22之内端221具一密止環 邙223以可將進氣孔道12加以封閉，開關閥桿u之外端2 25則凸伸出氣動工具1〇外部與一扳機16相連結，俾可藉由 該扳機16之扣壓帶動該開關閥桿22 ’又該開關閥桿22之作 動得藉由一彈性構件26之配組而具有自動復位性； 至於該轉向切換構造以及調速構造整合於氣動工具1〇 進軋切換閥20結構上之具體實施型態，茲分別說明如下： f先，該轉向切換構造，係可包括—切換轉筒3〇以及 一切控鈕40所組合構成’其中該切換轉筒3〇係樞組於進氣 切換閥20之閥主體21内部呈可旋轉狀態，該切換轉筒如之 内部呈中空狀，其内端形成有一穿流空間33，該穿流空間 8 !314088 33之内端與開關閥桿22之密止環部2幻相對位，又該切 轉间30之側壁设有沿著筒壁之軸向間隔配置的第一穿氣孔 :1以及第二穿氣孔32，該切換轉筒30之側壁外周則設有排 乳導槽34，該排氣導槽34之底側係常態與閥主體之排氣 :25相通；且於該切換轉筒3Q旋轉至第—預定角度時（如 第5 6圖所不），係構成該第一穿氣孔31與閥主體^之 順向進氣導孔23相對位連通、而排氣導槽料之頂端與闕主 $ 21之逆向進氣導孔24相對位連通之狀態；而當該切換轉 鲁筒30旋轉至第二預定角度時（如第7、8圖所示），則構 成該第一穿氣孔31與閥主體31之逆向進氣導孔24相對位連 通之狀態，該排氣導槽34之頂端則與閥主體21之順向進氣 導孔23相對位連通之狀態者；該切控鈕4〇，係組設於切換 轉筒30之外端呈外露於氣動工具1〇外部之狀態，該切控鈕 40具有切控部41以供人手把持操控，至於該切控鈕4〇與切 換轉筒30外端之間，係可藉由凸塊42與凹槽35相嵌合方式 (如第3圖所示）達成組合帶動狀態者； # 接著，該調速構造，係可包括一旋轉座50以及一轉控 鈕60所組合構成，其中該旋轉座5〇係樞組於切換轉筒3〇内 部之穿流空間33中呈可旋轉狀態，該旋轉座5〇中央具一貫 牙孔51可供開關闊桿22穿過’旋轉座50内端具一中空容槽 52與穿流空間常態相通，又該中空容槽52之槽壁對應切換 轉筒30所設第一穿氣孔31位置處設有數個間隔排列且孔徑 大小不同的穿孔53、54、55，該各穿孔53、54、55之内端 均與前述中空容槽52相通，而隨著該旋轉座50之轉動角度 變化，則可構成前述不同穿孔53、54、55與切換轉筒30之 9 1314088 '第一穿氣孔31相對位導通之狀態，藉此而能調節進入該第 一穿氣孔31之氣壓流量；該轉控紐60，係包括—轉盤部61 以及一連接桿部62 ’該轉盤部61係可組設於轉向切$構造 之切控鈕40外側（如第4圖所示），該連接桿部肋則一體 由轉盤部61之内側往内延伸穿過切控鈕4〇至切換轉筒％内 部與旋轉座50之外端相組合連結（如緊插配合型態），藉 此，即可透過該轉控鈕61之旋轉而同步帶動該旋轉座5〇轉 動；又其令，前述彈性構件26可為一彈簧，該彈性構件26 • 係可組設於該轉控鈕60之連接桿部62中所設一肩部63與板 機16内側所組裝之一筒套64内端之間。 藉由上述之結構組成設計’兹就本發明之使用作動情 形說明如下： 如第5圖所示（並請配合第3圖）’當使用者扣壓氣 動工具之扳機16時’將帶動開關閥桿22内移，促使其密止 壤部223移開呈釋放狀態，使進氣孔道12之氣壓W1得以進 入切換轉筒30之穿流空間33中；而此時，若該切換轉筒3〇 • 係旋轉至第一預定角度，構成該第一穿氣孔31與閥主體21 之順向進氣導孔23相對位連通（請配合第6圖所示）、而 排氣導槽34之頂端與閥主體21之逆向進氣導孔24相對位連 通之狀態時’前述導入氣壓W1將依序經由穿流空間33、旋 轉座50之穿孔53、切換轉筒3〇之第一穿氣孔31、閥主體21 之順向進氣導孔23、順轉導流道13而進入氣動工具1〇之作 動缸17中’令轉子U產生順向旋轉作動狀態（如第6圖中 之前號R1所示）’而推動轉子丨丨後之排放氣流W2由作動缸 Π導出後’將依序經由逆轉導流道14、閥主體21之逆向進 10 1314088 -氣導孔24、切換轉筒3〇之排氣導槽34後由闕主體2i之排氣 口 25排出外部’亦即’此狀態係為進氣壓有通過該旋轉座 中二合槽所设穿孔之流量（即扭力）可調整狀態。 復如第7、8圖所示（並請配合第3圖），當使用者 奴切換轉子11呈逆向旋轉作動狀態時’係由該轉向切換構 之切控鈕40進行操作換向，令切換轉筒3〇旋轉至第二預 定角度，構成該第二穿氣孔32與閥主體21之逆向進氣導孔 24相對位連通、而排氣導槽34之頂端與閥主體以之順向進 •氣導孔23相對位連通之狀態時，前述導入氣壓W1將依序經 由穿流空間33、切換轉筒30之第二穿氣孔32、％主體以之 逆向進氣導孔24、逆轉導流道13而進人氣動卫賤之作動 缸17中7轉子11產生逆向旋轉作動狀態（如第§圖中之 箭號R2所不），而推動轉子丨丨後之排放氣流町由作動缸 導出後，將依序經由逆轉導流道14、閥主體21之逆向進氣 導孔24、切換轉筒3〇之排氣導槽34後由閥主體21之排氣口 25排出外部；亦即，此作動狀態係為氣壓叽係由該切換轉 • 筒30之穿流空間33導入後即直接進入切換轉筒30之第二穿 氣孔32，而並不經過旋轉座5〇中空容槽52所設穿孔犯或％ 或55之流量全開狀態者。 另’該調速構造之作動，主要是透過該轉控鈕61之旋 轉而同步帶動該旋轉座5〇轉動，而隨著該旋轉座5〇之轉動 角度變化’可構成其不同孔徑之穿孔53、54、55與切換轉 筒30之第一穿氣孔31相對位導通之狀態，此對照第6、9 、10圖之差異可知，其中該第4圖所示之旋轉座5〇係最大 孔徑之穿孔53與第一穿氣孔31相對位導通狀態，第9、1〇 11 !314088 圖所示之旋轉座5〇則分別為中孔徑與最小孔徑之穿孔54、 =與第-穿氣孔31相對位導通狀態；藉此而能調節進入該 第-穿氣孔31之氣壓流量，進而達到調整氣動工具轉子之 運轉速度、扭力之目的。 【本發明之優點】 由於氣動工具使用上’通常僅於其轉子u呈順轉（即 正轉）狀態時需使用到扭力速度調整的功請鎖緊螺絲 時，工件構造有堅硬程度之差異），故本發明中所揭切換 轉筒30之第-穿氣孔31内側向係特別設計呈僅與旋轉座5〇 之穿孔53或53或54對位相通狀態，而該第二穿氣孔32則與 旋轉座50相錯開；ϋ此，當轉子以順向旋轉作動狀態時 ’其導入之氣屋係為通過該旋轉座5G所設穿孔㈣阳或^ 之流量（即扭力）可調整狀態，#以因應順轉工作之需求 ;而欲轉子^呈逆向旋轉作動狀態/其導入之氣壓们則係 由切換轉筒30之穿流空間33導入後即直接進入切換轉筒3〇 之第二穿氣孔32 ’ @為不經過旋轉座50中空容槽52所設穿 孔53或54或55之流量全開狀態，#此讓氣動工具使用上， 無論其轉子U順轉時之扭力調整狀態為何，當切換至逆轉 =時，其扭力均為最大狀態…俾可讓氣動工具用以 ==的速度得以提昇’操作上更可省卻頻頻調整該 調速構w轉控㈣之麻煩情事，達到使収加方便好用、 工作更有效率之進步性者。 上述實施例所揭示者係藉以具體說明本發明 雖透過特定的術料行說明，當*能以此限定本發明^ 12 1314088 利範圍；熟悉此項技術領域之人士當可在瞭解本發明之精 神與原則後對其進行變更與修改而達到等效之目的，而此 等變更與修改，’皆應涵蓋於如后所述之申請專利範圍所界 定範疇中。The main body 21 has a cylindrical shape, and the inner end of the axial direction is opposite to the air inlet hole 12 of the pneumatic tool, and the top phase of the valve main body 21 is disposed at an interval of obliquely spaced intervals. The intake guide hole 23 and the reverse intake guide hole are respectively arranged by the disk air tool 1 顺 the forward flow guide 13 and the reverse flow guide 14 are opposite to the bottom side of the valve body 21 (in terms of the drawing) The exhaust port is opposite to the exhaust port 15 of the pneumatic tool 1; the t-switch valve stem 22 is axially inserted into the inner towel of the valve body 21, and the inner end 221 of the switch valve stem 22 has a The sealing ring 223 is closed to close the air inlet channel 12, and the outer end of the switching valve rod u is protruded from the outer end of the pneumatic tool 1 to be connected with a trigger 16, which can be driven by the buckle of the trigger 16. The switching valve stem 22' and the switching valve stem 22 are actuated by an elastic member 26 to have an automatic resetting property; and the steering switching structure and the speed regulating structure are integrated into the pneumatic tool 1 The specific implementation of the structure is described as follows: f First, the steering switching structure can include The rotating drum 3〇 and all the control buttons 40 are combined to form a rotating state in which the switching drum 3 is pivotally disposed inside the valve body 21 of the intake switching valve 20, and the switching drum is hollow inside. The inner end is formed with a flow-through space 33. The inner end of the flow-through space 8! 314088 33 is opposite to the dense ring-shaped portion 2 of the switch valve stem 22, and the side wall of the cut-off space 30 is provided along the wall of the cylinder. The first air venting hole is disposed at an axial interval: 1 and the second air venting hole 32. The outer circumference of the side wall of the switching drum 30 is provided with a milk discharge guiding groove 34. The bottom side of the venting guiding groove 34 is a normal state and a valve body. Exhaust gas: 25 communicating; and when the switching drum 3Q is rotated to a predetermined angle (as shown in FIG. 6), the first air venting hole 31 and the forward air guiding hole of the valve body ^ are formed. 23 is in a position of relative communication, and the top end of the exhaust channel material is in a state of being in a position opposite to the reverse intake air guide hole 24 of the main unit; and when the switching rotary cylinder 30 is rotated to a second predetermined angle (eg, 7th) And FIG. 8 shows a state in which the first air perforating hole 31 communicates with the reverse air intake guide hole 24 of the valve main body 31 in a relative position, and the exhaust air is exhausted. The top end of the guiding groove 34 is in a state of being in communication with the forward air guiding hole 23 of the valve main body 21; the cutting knob 4 is assembled at the outer end of the switching drum 30 to be exposed to the pneumatic tool 1〇. In the external state, the switch 40 has a cutting portion 41 for gripping by a hand. As for the cutting button 4 and the outer end of the switching drum 30, the bump 42 can be embedded with the groove 35. The combination mode (as shown in FIG. 3) is used to achieve the combined driving state; # Next, the speed control structure may comprise a combination of a rotating base 50 and a rotary knob 60, wherein the rotating base 5 is pivoted Rotating in the through-flow space 33 inside the switching drum 3〇, the rotating base 5 has a continuous tooth hole 51 for the switch wide rod 22 to pass through the inner end of the rotating base 50 with a hollow cavity 52 and The through-flow space is normally connected, and the groove wall of the hollow cavity 52 is provided with a plurality of perforations 53, 54 and 55 spaced apart and having different aperture sizes at positions corresponding to the first air-through holes 31 of the switching drum 30. The inner ends of the 54, 55 are all communicated with the hollow cavity 52, and as the rotation angle of the rotary seat 50 changes, The first perforations 53, 54, 55 and the switching drum 30 9 1314088 'the first air perforating hole 31 are electrically connected to each other, thereby adjusting the air pressure flow into the first air perforating hole 31; 60, comprising: a turntable portion 61 and a connecting rod portion 62'. The turntable portion 61 can be assembled outside the steering button 40 of the steering cut $ structure (as shown in Fig. 4), the connecting rod portion rib is integrated The inner side of the turntable portion 61 extends inwardly through the switch button 4〇 to the inside of the switch drum and is coupled with the outer end of the rotary base 50 (such as a tight fit type), thereby transmitting the control The rotation of the button 61 synchronously drives the rotation of the rotary base 5; and the elastic member 26 can be a spring. The elastic member 26 can be disposed in the connecting rod portion 62 of the rotary knob 60. A shoulder 63 is interposed between the inner end of one of the sleeves 64 assembled to the inside of the trigger 16. By using the above-mentioned structural composition design, the following is a description of the operation of the present invention: as shown in FIG. 5 (and please cooperate with FIG. 3) 'When the user presses the trigger 16 of the pneumatic tool', the switch stem will be driven. The inner movement of 22 causes the dense soil portion 223 to be released and released, so that the air pressure W1 of the air inlet passage 12 can enter the flow space 33 of the switching drum 30; and at this time, if the switching drum 3 Rotating to a first predetermined angle, the first air venting opening 31 is configured to communicate with the forward air guiding hole 23 of the valve body 21 (refer to FIG. 6), and the top end of the venting groove 34 and the valve When the reverse intake air guide hole 24 of the main body 21 is in a state of being in a relative position, the aforementioned introduction air pressure W1 will sequentially pass through the through space 33, the through hole 53 of the rotary base 50, the first air vent 31 of the switching drum 3, and the valve body. 21, the forward intake guide hole 23, the forward guide runner 13 and enter the pneumatic tool 1's ram 17 to make the rotor U produce a forward rotation state (as indicated by the previous number R1 in Fig. 6). And the exhaust airflow W2 that pushes the rotor after the rotor is discharged from the actuator cylinder will be sequentially The deflecting flow path 14 and the reverse direction of the valve main body 21 are 10 1314088 - the air guiding hole 24, and the exhaust guiding groove 34 of the switching drum 3 is discharged from the exhaust port 25 of the main body 2i to the outside, that is, the state is The intake pressure can be adjusted by the flow rate (ie, the torsion) of the perforation provided by the two slots in the rotary seat. As shown in Figures 7 and 8 (and please cooperate with Figure 3), when the user slave switches the rotor 11 in the reverse rotation state, the switch is operated by the steering switch 40 of the steering switch mechanism to make the switch The rotating drum 3 is rotated to a second predetermined angle, and the second air vent 32 is formed to communicate with the reverse air guiding hole 24 of the valve main body 21, and the top end of the exhaust guiding groove 34 and the valve body are forwarded inwardly. When the air guiding hole 23 is in a state of being in a relative position, the introduction air pressure W1 will sequentially pass through the through space 33, switch the second air vent 32 of the drum 30, the % main body reverses the intake air guiding hole 24, and reverse the air guiding path. 13 and enter the pneumatic agitation cylinder 17 of the 7 rotor 11 to produce a reverse rotation state (such as the arrow R2 in the § figure), and the exhaust airflow after the rotor is pushed out of the cylinder By sequentially reversing the flow guiding passage 14, the reverse air intake guide hole 24 of the valve main body 21, and the exhaust guide groove 34 of the switching drum 3〇, the exhaust air outlet 25 of the valve main body 21 is discharged to the outside; that is, this operation The state is that the air pressure system is directly introduced into the cut by the throughflow space 33 of the switching cylinder 30. The second air vent 32 of the rotating cylinder 30 is not rotated through the rotating seat 5, the venting of the hollow hull 52, or the flow of the % or 55 is fully open. In addition, the operation of the speed control structure is mainly to synchronously drive the rotation of the rotary base 5 through the rotation of the control knob 61, and the rotation angle of the rotary base 5 can constitute a perforation 53 of different apertures. , 54 and 55 are in a state in which the first air vent 31 of the switching drum 30 is electrically connected to the opposite position. The difference between the sixth, ninth, and tenth drawings is shown in FIG. 4, wherein the rotating base 5 shown in FIG. 4 is the largest aperture. The through hole 53 is electrically connected to the first air venting hole 31, and the rotating seat 5 第 shown in the figure 9 and 1 〇 11 ! 314088 is a hole having a middle hole diameter and a minimum hole diameter 54, respectively, and a position opposite to the first air vent hole 31. The conduction state; thereby, the flow rate of the air entering the first through-hole 31 can be adjusted, thereby achieving the purpose of adjusting the operating speed and torque of the rotor of the pneumatic tool. [Advantages of the Invention] Since the pneumatic tool is used only when the rotor u is in the forward (ie, forward) state, the torque adjustment is required, and the workpiece structure has a hard degree difference. Therefore, the inner side of the first through-hole 31 of the switching drum 30 disclosed in the present invention is specifically designed to be in a state of being in alignment with the perforation 53 or 53 or 54 of the rotating base 5, and the second through hole 32 is The rotating base 50 is staggered; thus, when the rotor is rotated in the forward direction, the air chamber that is introduced is adjusted by the perforation (four) of the rotating base 5G (ie, the torque) (ie, the torque). In response to the need of the work, the rotors in the reverse rotation state/introduction of the air pressure are introduced into the second air intake holes 32 of the switching drum 3 after being introduced into the flow space 33 of the switching drum 30. ' @ is the flow opening state of the perforation 53 or 54 or 55 which is not provided by the hollow pocket 52 of the rotary seat 50, # this allows the pneumatic tool to be used, regardless of the torque adjustment state of the rotor U when it is rotated, when switching to reverse When =, its torque is the maximum state... Pneumatic tool to allow the speed can be improved == 'can save more frequent operation of the governor to adjust the rotation control mechanism w (iv) circumstances of the trouble, to increase easy to use so close, the work more efficient by progressive. The above embodiments are disclosed to illustrate the scope of the present invention by way of a specific description of the invention, and can be used to limit the scope of the present invention. Those skilled in the art can understand the spirit of the present invention. Changes and modifications are made to the equivalent of the principles, and such changes and modifications are to be included in the scope of the patent application as described later.
13 1314088 第 第 第 第 第 第 第 第， 第！ 圖 2圖 3圖 I圖 1圖 圖 圖： 圖： 圖' : 第10圖 【圖式簡單說明】 •係習知結構之八 _ 再疋分解立體圖。 .係習知結構之έ 再爻紐合剖視圖。 .本發明較佳實施 n 例之構件分解立體圖。 权佳只施例之構件組合剖視 本發明之作動肤能 户勒狀態—之剖視圖。 :對應第5圖作動狀態之局部 本發明之作動狀態二之剖視圖。j視圖。 係對應第7圖作動狀態 局°卩構件斷面剖視圖。 本發明之旋轉座穿孔與 位狀態圖。 與切換轉筒之穿氣孔另—對 / 本發明之旋轉座穿孔與切 興切換轉筒之穿氣孔又一斟 位狀態圖。 對 主要元件符號說明】 本發明部份： 氣動工具1〇 進氣切換閥20 轉子11 順轉導流道13 排氣孔道15 作動缸17 閥主體21 内端221 進氣孔道12 逆轉導流道14 扳機16 開關閥桿22 密止環部223 14 1314088 切換轉筒30 切控鈕40 旋轉座50 穿孔 53、54、55 轉控鈕60 氣壓W1 習知部份： 調速環7 0 氣流73 外端225 順向進氣導孔23 彈性構件26 第一穿氣孔31 穿流空間33 凹槽35 切控部41 貫穿孔51 轉盤部61 肩部63 排放氣流W2 調氣孔71 控制桿80 逆向進氣導孔24 t 第二穿氣孔32 排氣導槽34 凸塊42 中空容槽52 連接桿部62 筒套64 進氣通道72 轉向構件90 1513 1314088 First, first, first, first, first! Figure 2 Figure 3 Figure I Figure 1 Figure Figure: Figure: Figure 10: [Simple diagram]系 习 结构 结构 έ έ 。 。 。 。 。 。 。 。 The present invention preferably performs an exploded perspective view of the member of the example n. STRUCTURAL COMPONENTS OF STRUCTURAL COMPONENTS OF THE EMBODIMENT OF THE INVENTION : Part of the actuation state corresponding to Fig. 5 is a cross-sectional view of the actuation state of the present invention. j view. Corresponding to the action state of Figure 7, a section of the section of the member. The rotary seat perforation and position state diagram of the present invention. And the through hole of the switching drum, another pair of / the rotary seat of the present invention and the switching state of the through hole of the switching drum. Explanation of main component symbols: Part of the invention: Pneumatic tool 1〇 Intake switching valve 20 Rotor 11 Shunning deflector 13 Exhaust hole 15 Actuating cylinder 17 Valve body 21 Inner end 221 Intake port 12 Reverse flow guide 14 Trigger 16 Switching stem 22 Closed ring 223 14 1314088 Switching drum 30 Switching knob 40 Rotating seat 50 Perforation 53, 54, 55 Transfer knob 60 Air pressure W1 Conventional part: Speed control ring 7 0 Air flow 73 Outer end 225 Forward intake guide hole 23 Elastic member 26 First air venting hole 31 Flowing space 33 Groove 35 Cutting portion 41 Through hole 51 Turntable portion 61 Shoulder 63 Discharge airflow W2 Air vent 71 Control lever 80 Reverse air intake guide hole 24 t Second air vent 32 Exhaust channel 34 Bump 42 Hollow tank 52 Connecting rod 62 Bushing 64 Intake passage 72 Steering member 90 15