201223713 發明說明： 【發明所屬之技術領域】 機 本發明是關於一種工具機，特別是關於.一種氣動工具 【先前技術】 請參照圖1’圖1所繪示為習知的一種氣動工具機。 工201223713 DESCRIPTION OF THE INVENTION: BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a machine tool, and more particularly to a pneumatic tool. [Prior Art] Referring to Figure 1' Figure 1 is a conventional pneumatic power tool. work
具機10具有一呈槍形的殼體11、一驅動軸12 Γ與氣動 於驅動轴12的前端可安裝有一鎖件（未繪示），該鎖'件^ 13 ’ 螺帽。此外，扳機13則是用以趨動裝設於殼體】丨内部的進，或 置（未繪示），當扳機13被按下後，驅動軸12便會^動。乳裝 此外’於殼體η的後方則設置有一旋鈕⑷，藉由調整 鈕141可控制驅動軸12的轉向，例如將旋鈕141順時針旋 定角度後，可使驅動轴12順時針旋轉，若將旋鈕141逆時針 一預定角度後，則可使驅動軸12逆時針旋轉。 請參照，2 ’圖2所緣示為氣動工具機的部分零組件，由左至 右分別為：氣缸15、進氣閥16、與調整機構Μ。其中，於氣缸 =内部設有葉輪（树示），葉輪上設置有制，進賴16則包 括則盍161與後座162，而調整機構14則包括旋鈕⑷與連動件 142。在圖2中，除了旋紐141外，其他的零組件皆位於殼體^ 2内部。藉，轉動旋紐14卜可連帶使連動件142與進氣間16轉 絡-此外氣幻5的後端還設置有正魏氣孔與逆轉進氣孔（未 、藉由,轉前蓋161可使正轉進氣孔或逆轉進氣孔開啟或 ,、控制軋叙15内部葉輪的轉向，從而控制驅動軸12的轉 备氣動X·具機1G在運作時，其產生的震動可能讓進氣 16偏離原本預定的角度，導致氣動工具機⑺無法有效運 201223713 作為了使進氣閥16保持在預定的角度，目前的作法是將後座 162上的〇型環1621與殼體11的内壁作緊密地接觸。藉由殼體 II與Ο型環1621間的摩擦力，可使進氣閥16保持在預定的角度。 然而，當殼體11與〇型環應間的雜力愈大，使用者也須花 費，大的力量來馳脑⑷，從而造成使壯料便。而且，〇 型環1621屬於軟性材f，使用_敎，磨損關題也愈嚴重。 〇因此，如何设计出一氣動工具機，其可方便地讓使用者變換 驅動轴方向，以成為本領域具有财知識者值得去思量的 一個問題。 【發明内容】 本發明的主要目的在於提供一種氣動工具機，此氣動工具機 可方便地讓使用者變換驅動軸之旋轉方向。 基於上述目的與其他目的，此氣動卫具機包括—殼體、一驅 晋Hr氣缸、一進氣閥、與—切換機構。其中，氣缸設置於殼 ^的^ ’且具有正轉進氣孔與逆轉進氣孔。進賴設於氣缸之 封閉或開啟正轉進氣孔或逆轉進氣孔，從_整驅動轴 向吻換機構設於進氣閥後方，其包括—調整機構、一彈力 —固疋栓。彈力元件施加—彈力於調整機構，而該調整 部份體積外露贿體外，且於調整機構上設置有一滑溝， :月=_分別設有-卡槽。此外，固的—端固定於殼體 刺伸人於滑射。而且，調賴構與贱_連動， :卡=彈力元件施加於調整機構的彈力會使固定检進 包括=動_:^ 201223713 犧树祕物_件上。連 扳動後，會帶‘:接入於盲孔中。當扳動件被 封閉或職㈣喊_，贱進氣間 開啟:與-後座。藉由轉動前蓋可封閉或 接命逆轉進氣孔，以調整氣動工具機之轉向。另外， =括且盲孔是設置於後座上。此外，切換機構The machine 10 has a gun-shaped housing 11, a drive shaft 12, and a front end of the drive shaft 12, and a lock member (not shown) is attached to the front end of the drive shaft 12. The lock member 13 is a nut. In addition, the trigger 13 is used to move the inside of the housing, or (not shown), and when the trigger 13 is pressed, the drive shaft 12 will move. In addition, a knob (4) is disposed behind the casing η, and the steering of the drive shaft 12 can be controlled by the adjustment button 141. For example, when the knob 141 is rotated clockwise, the drive shaft 12 can be rotated clockwise. When the knob 141 is turned counterclockwise by a predetermined angle, the drive shaft 12 can be rotated counterclockwise. Please refer to Fig. 2 for the parts of the pneumatic machine tool, from left to right: cylinder 15, intake valve 16, and adjustment mechanism Μ. Wherein, an impeller (tree) is provided inside the cylinder, the impeller is provided with a system, the inlet 16 includes a crucible 161 and a rear seat 162, and the adjustment mechanism 14 includes a knob (4) and a linkage 142. In FIG. 2, except for the knob 141, other components are located inside the casing 2. By rotating the rotary knob 14 , the linkage 142 and the air intake 16 are coupled together - in addition, the rear end of the gas magic 5 is also provided with a positive Wei air hole and a reverse air inlet hole (not, by, the front cover 161 can be rotated Turning the forward air inlet or reversing the air inlet opening, and controlling the steering of the internal impeller of the rolling 15 to control the rotation of the drive shaft 12, the vibration generated by the X-axis machine 1G may cause the air intake 16 deviates from the originally predetermined angle, causing the pneumatic machine tool (7) to be unable to operate effectively. 201223713 As the intake valve 16 is maintained at a predetermined angle, the current practice is to make the 〇-ring 1621 on the rear seat 162 and the inner wall of the casing 11 Close contact. By the friction between the housing II and the Ο-shaped ring 1621, the intake valve 16 can be maintained at a predetermined angle. However, when the housing 11 and the 〇-type ring should be more complicated, use It is also necessary to spend a lot of power to brain (4), which will result in strong material. Moreover, the 〇-shaped ring 1621 belongs to the soft material f, and the use of _敎, the more serious the wear and tear problem. 〇 Therefore, how to design a pneumatic A machine tool that allows the user to easily change the direction of the drive shaft to become the machine The main object of the present invention is to provide a pneumatic machine tool which can conveniently change the direction of rotation of the drive shaft by the user. The purpose is that the pneumatic guard machine comprises a casing, a drive Hr cylinder, an intake valve, and a switching mechanism. The cylinder is disposed on the casing and has a forward air inlet and a reverse air inlet. In the cylinder, the closed or open positive air inlet hole or the reverse air inlet hole is arranged, and the _ whole driving axial kiss changing mechanism is disposed behind the intake valve, and includes an adjusting mechanism and an elastic-solid plug. The elastic element is applied - the elastic force is applied to the adjusting mechanism, and the adjusting part is exposed to the outside of the body, and a sliding groove is arranged on the adjusting mechanism: the month=_ respectively is provided with a card slot. In addition, the solid end is fixed to the housing. The thorns stretched out and slid. Also, the squatting and 贱 _ linkage, : card = elastic element applied to the adjustment mechanism of the elastic force will make the fixed check include = move _: ^ 201223713 sacrifice tree secrets _ pieces. After the move, it will take ': In the blind hole, when the trigger member is closed or the (4) shouting _, the air intake is opened: and the rear seat. By turning the front cover, the front and rear seats can be closed or connected to reverse the air intake to adjust the steering of the pneumatic machine tool. In addition, the blind hole is placed on the rear seat. In addition, the switching mechanism
邊。彈力疋件是套設於支撐套環上，而連接軸則貫穿支樓套環。 盆由於t述之氣動工具機中’調整機構包括—餘與—連動件。 I曰i旋紐是設置於殼麵後方，連鱗設置於殼_，該連動 =疋與旋紐、進氣閥相連動。另外，滑溝是設置於連動件上，彈 二件則是施加彈力於連動件上。調整機構更包括多個插銷，該 插銷的-端是插設在旋钮上，而_的另—端則是插設在連動件 士。藉由插銷，當顿被轉動時，連動件也會跟著轉動。因此， 田旋，被轉賴’會帶動連動件，從而讓連動件軸進氣闕，以 使進氣閥封閉或開啟正轉進氣孔或逆轉進氣孔。 由於本發明之氣動X具機是利用卡合的方式來固定進氣閥， 故可長久使用’不會像習知的Q型環有磨損關題。而且，由於 並非利用〇型環的摩擦力來固定進氣閥，故相較於習知的氣動工 具機’使肖者無縣^較大的力f轉動旋鈕或扳動件。 【實施方式】 晴參照圖3 ’圖3所繪示為本發明之第一實施例的氣動工具 機。此氣動工具機20具有一呈搶形的殼體21、一驅動軸22、 與一扳機23,於驅動軸22的前端可安裝有一鎖件（未繪示），該 鎖件為螺栓或螺帽。此外’扳機23則是用以趨動裝設於殼體21 201223713 的進氣裝置（未繪示），當扳機23被按下後，驅祕22便 «開始轉動。此外，於殼體21的後方還設有旋紐期，當旋紐 2611往順時針方向旋轉一預定角度後’驅動軸…更會進行順時針 方向的旋轉。反之，當_2611往逆時針方向旋轉一預定角度後， 驅動軸22便會進行逆時針方向的旋轉。 明參照圖4A與圖4B ’圖4A所繪示為第一實施例的氣動工 機之内部視圖’圖4B所繪不為氣虹、葉輪與進氣閥的爆炸圖。 ，動工具機20還包括-氣缸24、—葉輪27與—進_ 25，其中 氣虹24 s又置於殼體21的内部且具有正轉進氣孔241與逆轉進氣 孔=42 (如圖4C所示）。此外，進氣閥25設於氣虹％之後，此 ，氣間25疋用於封閉或開啟氣缸24的正轉進氣孔241或逆轉進 氣孔^42，以調整驅動軸22 (如圖3所示）之轉向。葉輪27上設 置有葉片27卜這些葉片2Ή是插設在葉輪2?上的間隙π。當 高壓氣體從正轉進氣孔241或逆轉進氣孔242進入後，其會推動 葉片271並使葉輪27轉動，從而使驅動軸22旋轉。 此外，請同時參照圖4B與圖4D，圆4D所繪示為進氣閥與 切換，構的爆炸圖。其中，切換機構26 (如圖4A所示）是設^ 於進氣閥25後方，此切換機構26包括一調整機構26卜一彈力元 ，262、與一固定栓263。調整機構261包括一旋鈕2611與一連 動件2613，其中旋鈕2611是設置於殼體21的後方，連動件2613 則是設置於殼體21的内部。由圖4D可知，調整機構261還包括 二插銷2615 ’此插銷2615的一端是插設在旋鈕2611上，而插銷 2615的另一端則是插設在連動件2613上。因此，當旋鈕％〗丨旋 轉時，連動件2613也會被帶動並旋轉。在本實施例中，彈力元件 262為螺旋彈簧’但本領域具有通常知識者也可選用其他型態的彈 性元件。side. The elastic element is sleeved on the support collar, and the connecting shaft runs through the branch collar. The basin is described in the pneumatic tool machine as described in the 'adjustment mechanism including - and the linkage. The I曰i knob is placed behind the shell surface, and the scale is placed on the shell _. The linkage = 疋 is connected to the knob and the intake valve. In addition, the sliding groove is disposed on the linking member, and the two elastic members are applied with the elastic force on the linking member. The adjustment mechanism further includes a plurality of pins, the end of the pin is inserted on the knob, and the other end of the _ is inserted in the linkage. With the bolt, when the rod is turned, the linkage will follow. Therefore, Tian Xuan, being transferred to the 'will drive the linkage, so that the linkage shaft is inflated, so that the intake valve closes or opens the forward intake or reverses the intake. Since the pneumatic X-type machine of the present invention fixes the intake valve by means of the engagement, it can be used for a long time. "There is no wear problem like the conventional Q-ring. Moreover, since the intake valve is not fixed by the frictional force of the 〇-shaped ring, the knob or the urging member is rotated by a larger force f than the conventional pneumatic tool machine. [Embodiment] Fig. 3 is a perspective view of a pneumatic power tool according to a first embodiment of the present invention. The pneumatic power tool 20 has a shell 21, a drive shaft 22, and a trigger 23. A lock (not shown) can be mounted on the front end of the drive shaft 22. The lock is a bolt or a nut. . In addition, the trigger 23 is used to illuminate the air intake device (not shown) mounted on the housing 21 201223713. When the trigger 23 is pressed, the drive 22 will start to rotate. Further, a knob period is provided behind the casing 21, and when the knob 2611 is rotated clockwise by a predetermined angle, the drive shaft is rotated in the clockwise direction. Conversely, when the _2611 is rotated counterclockwise by a predetermined angle, the drive shaft 22 is rotated counterclockwise. 4A and 4B' Fig. 4A is an internal view of the pneumatic machine of the first embodiment. Fig. 4B is not an exploded view of the gas, impeller and intake valves. The power tool 20 further includes a cylinder 24, an impeller 27 and an inlet 25, wherein the gas rainbow 24 s is again placed inside the casing 21 and has a forward rotation air inlet 241 and a reverse air inlet hole 42 (eg Figure 4C). In addition, the intake valve 25 is disposed after the gas rainbow %, wherein the air chamber 25 is used to close or open the forward air inlet hole 241 of the cylinder 24 or reverse the air inlet hole 42 to adjust the drive shaft 22 (see FIG. 3). The steering shown). The impeller 27 is provided with vanes 27 which are gaps π interposed in the impeller 2'. When the high pressure gas enters from the forward rotation air inlet 241 or the reverse air inlet 242, it pushes the blade 271 and rotates the impeller 27, thereby rotating the drive shaft 22. In addition, please refer to FIG. 4B and FIG. 4D at the same time, and the circle 4D is illustrated as an exploded view of the intake valve and the switching mechanism. The switching mechanism 26 (shown in FIG. 4A) is disposed behind the intake valve 25, and the switching mechanism 26 includes an adjusting mechanism 26, a spring element 262, and a fixing bolt 263. The adjusting mechanism 261 includes a knob 2611 and a connecting member 2613. The knob 2611 is disposed at the rear of the housing 21, and the linking member 2613 is disposed inside the housing 21. As can be seen from Fig. 4D, the adjustment mechanism 261 further includes two latches 2615'. One end of the latch 2615 is inserted into the knob 2611, and the other end of the latch 2615 is inserted into the linkage 2613. Therefore, when the knob % 丨 is rotated, the link 2613 is also driven and rotated. In the present embodiment, the resilient member 262 is a coil spring 'but other types of resilient members are also available to those of ordinary skill in the art.
201223713 庙^繼照圖4B與圖4〇，進氣間25包括一前蓋252盥一後 座254，其中前蓋252是與後座a%鎖合。其令，進 y 括^銷253，此_253的—端是插設在連祕26i3的缺孔二 鎖253的另-端則是插設在進氣閥25的後座254上。因此， j動件2613旋轉時，也會帶動後座254及前蓋议旋轉。藉由 =252的旋轉，可使前蓋攻的缺口 2521對準氤㈣的^轉 進耽孔241或逆轉進氣孔242 (如圖4C所示），當缺口勘 準正轉進氣孔241時，正轉進氣孔241便被開啟，而逆轉進 242便被封閉。當正轉進氣孔241被開啟時，驅動轴u便合 時針的方向旋轉。反之，當逆轉進氣孔242被開 曰 便會以逆時針的方向旋轉。 ^ 22 μ請ί Γ1與圖5B ’圖5A與圖5B所繪示為調整機構的立 體圖。其中，連動件則上設置有-滑溝2612，且滑溝％ 兩端分別設有-卡槽2614。其中，固定栓263的一端是插入於滑 溝2612’而固定栓263的另外-端則是固定在殼體21 (如圖 示）上。另外’彈力元件262的一端是抵壓在進氣閥乃的後座w， 而另-端則是則是抵壓在連動件2613上。接著，請參照圖犯， 當旋鈕2611被轉動並使固定栓263對應到卡槽2614的位置時， 彈力元件262所施加的彈力會使調整機構261往後位移，而使 定栓263針槽26H相卡合。也因此，當氣動工具機2〇在 時，進氣Μ 25便會蚊在預定的肖度，而不會纽絲。在本實 施例中，是利用卡合的方式來固定後座254，從而讓前蓋252保持 在預定的角度，故可有較長的使用壽命’不會像習知的〇型環丨'621 (如圖2所示）會有純關題。而且，由於並非_摩擦 固定後座254 ’故相較於習知的氣動工具機1〇，使用者無^耗 較大的力氣來轉動旋鈕2611。 201223713 請參照® 6A，圖6A麟示為本發明之第二實施例的氣動 工具機。在本實施例中，與圖3相同或相似的元件將標以相同的 符號且不再贅述。相較於圖3之氣動工具機2〇，本實施例之氣 動工具機30是利用設於殼體31上方的一板動件遍來控 制驅動軸22的轉向。 請參照W 6B與圖6C，圖6B_示為第二實施例的氣動 部視圖，^ 6C所繪示為第二實施例之進氣_切換 機構的爆炸圖。進氣閥35包括一前蓋252與—後座354，其中後 座354是與前蓋252固定連接，且於後座3m上嗖置有二盲孔 35卜此外，本實施例之切換機構36包括一調整機構361、一彈力 το件362、與—固定栓363 ’其中調整機構361則包括一板動件 36Π础-支標套環3613、與一連接轴3615。板動件迎是設置 =體=上方’連接軸3615是貫穿扳動件3611與支樓套環 尾端是插入於盲孔351中。而且，支樓套環划3則是 上且位於盲孔识的正上方，彈力元件尬Μ 二;6ΐ/的Π。3上。其中彈力兀件362的一端是抵壓著支撐套 衣 的底盤，而另一端則是抵壓著扳動件3611，故彈力元件 362會施加一彈力於扳動件3611上。 明同時參照@ 6C、圖7Α、與圖7Β，圖7Α相7Β所徐干 U機構的立體圖。其中’扳動件36Π上設置有一滑溝 且滑溝3612的兩端分別設有一卡槽3614。其中，固定检3 一 滑溝3612，而固定栓363的另外一端則是固定在殼體 板動並使固定謂 當氣動I 定栓363與卡槽3614相卡合。也因此， 八 運作時，進氣閥35便會固定在預定的角度， 201223713 而不會產生偏離。由於在本實施例中，也是藉由卡合的方式來防 止進氣閥35偏離，故不會如習知般有0型環1621 (如圖^所示） 被磨損的問題。而且，使用者也可輕易地扳動該扳動件， 無須花費較大的力量。201223713 Temple 4A and FIG. 4B, the air intake 25 includes a front cover 252 and a rear seat 254, wherein the front cover 252 is interlocked with the rear seat a. The y-ring 253 is inserted into the rear seat 254 of the intake valve 25 at the other end of the 222. Therefore, when the j-moving member 2613 rotates, the rear seat 254 and the front cover are also rotated. By the rotation of 252, the notch 2521 of the front cover can be aligned with the 氤 (4) of the 氤 (4) into the boring hole 241 or the reverse of the air inlet 242 (as shown in FIG. 4C), when the notch is aligned with the positive vent 241 At this time, the forward rotation air inlet 241 is opened, and the reverse rotation 242 is closed. When the forward rotation air inlet 241 is opened, the drive shaft u is rotated in the direction of the hour hand. Conversely, when the reverse intake port 242 is opened, it will rotate in the counterclockwise direction. ^ 22 μίί 1 and FIG. 5B' FIG. 5A and FIG. 5B are schematic views of the adjustment mechanism. Wherein, the linkage member is provided with a sliding groove 2612, and the sliding groove % is respectively provided with a card slot 2614. Here, one end of the fixing bolt 263 is inserted into the sliding groove 2612' and the other end of the fixing bolt 263 is fixed to the casing 21 (as shown). Further, one end of the elastic member 262 is pressed against the rear seat w of the intake valve, and the other end is pressed against the link member 2613. Next, referring to the figure, when the knob 2611 is rotated and the fixing bolt 263 corresponds to the position of the card slot 2614, the elastic force exerted by the elastic member 262 causes the adjustment mechanism 261 to be displaced backward, and the locking bolt 263 needle groove 26H The phase is stuck. Therefore, when the pneumatic machine tool 2 is hovering, the intake port 25 will be mosquitoes at a predetermined degree without a wire. In the present embodiment, the rear seat 254 is fixed by the snapping manner, so that the front cover 252 is maintained at a predetermined angle, so that the service life can be long, which is not like the conventional 〇-shaped ring 621 621 (As shown in Figure 2) there will be pure questions. Moreover, since it is not a friction-fixing rear seat 254', the user does not have to use a large amount of force to rotate the knob 2611 as compared with the conventional pneumatic machine tool. 201223713 Please refer to ® 6A, which shows a pneumatic machine tool according to a second embodiment of the present invention. In the present embodiment, the same or similar elements as those in FIG. 3 will be denoted by the same reference numerals and will not be described again. Compared with the pneumatic machine tool 2 of Fig. 3, the pneumatic machine tool 30 of the present embodiment controls the steering of the drive shaft 22 by means of a plate member disposed above the casing 31. Referring to W 6B and FIG. 6C, FIG. 6B is a view of the pneumatic portion of the second embodiment, and FIG. 6C is an exploded view of the intake_switching mechanism of the second embodiment. The intake valve 35 includes a front cover 252 and a rear seat 354. The rear seat 354 is fixedly connected to the front cover 252, and two blind holes 35 are disposed on the rear seat 3m. Further, the switching mechanism 36 of this embodiment is provided. The utility model comprises an adjusting mechanism 361, a spring force member 362, and a fixing bolt 363. The adjusting mechanism 361 comprises a plate member 36, a base-branch collar 3613, and a connecting shaft 3615. The plate member welcomes the setting = body = upper. The connecting shaft 3615 is inserted through the trigger member 3611 and the branch collar. The tail end is inserted into the blind hole 351. Moreover, the branch ring 3 is above and located directly above the blind hole, the elastic element 尬Μ 2; 6 ΐ / Π. 3 on. One end of the elastic member 362 is a chassis against which the support sleeve is pressed, and the other end is pressed against the trigger member 3611, so that the elastic member 362 exerts an elastic force on the trigger member 3611. At the same time, reference is made to @6C, Fig. 7Α, and Fig. 7Β, and Fig. 7 is a perspective view of the U-unit of the 7th. A sliding groove is disposed on the trigger member 36, and a slot 3614 is defined at each end of the sliding groove 3612. Wherein, the sliding groove 3612 is fixedly inspected, and the other end of the fixing bolt 363 is fixed to the casing plate and fixed to be engaged with the pinch 3614. Therefore, during operation, the intake valve 35 is fixed at a predetermined angle, 201223713 without deviation. In the present embodiment, the intake valve 35 is also prevented from being deviated by the engagement, so that the problem that the 0-ring 1621 (shown in Fig. 2) is worn is not conventionally known. Moreover, the user can easily pull the trigger member without spending a large amount of force.
另外，上述所述的實施例中’氣動工具機的殼體皆呈搶 形’但其實氣動工具機的殼體並不限於搶形，上述實 的切換機構也可適用於其他形態的氣動工具機。請^照圖= 圖8所繪示為本發明之第三實施例的氣動工具機。此氣動'工呈攄 4〇的機殼41是呈筆直的形狀，其内部各祕（包括：切換= 36)與上述之第二實施例類似，故不再贅述。 、 實施例說明如上，然其並非相限定本 :主張之專利權利範圍。其專利保護範圍當視後 ，利範圍及其等同領域而定。凡本領域具有常知識 於: = = =圍Γ所作之更動或潤飾'均屬 含在下==;:内完成之等效改變或設計，且應包 【圖式簡單說明】 圖1所綠示為習知的-種氣動工具機。 =所繪示為氣動工具機的部分零組件。 =所=示為本發明之第—實施例的氣動工具機。 圖犯所^，—實施例的氣動工具機之内部視圖。 圖4C 不為氣缸、葉輪與進氣閥的爆炸圖。 =所:示為氣缸的立體圖。 圖5八2,與切換機構的爆炸圖。 圖6Α所洛-所緣示為調整機構的立體圖。 、·不為本發明之第二實施例的氣動工具機。 201223713 圖6B所繪示為第二實施例的氣動工具機之内部視圖。 圖6C所繪示為第二實施例之進氣閥與切換機構的爆炸 圖7A與圖7B所繪示為調整機構的立體圖。 圖8所繪示為本發明之第三實施例的氣動工具機。 【主要元件符號說明】 <先前技術> 10 :氣動工具機 11 :殼體 12 :驅動軸 13 :扳機 14 :調整機構 141 :旋鈕 <實施方式> 142 :連動件 15 :氣缸 16 :進氣閥 161 =前蓋 162 :後座 1621 : 〇型環 20 :氣動工具機 21 ··殼體 22 :驅動軸 23 :扳機 24 :氣缸 241 ··正轉進氣孔 242 :逆轉進氣孔 25 :進氣閥 252 :前蓋 2521 ··缺口 253 :插銷 254 :後座 26 :切換機構 261 :調整機構 2611 ·旋紐 2612 :滑溝 2613 :連動件 2614 :卡槽 2615 :插銷 262 :彈力元件 263 :固定栓 27 :葉輪 271 ··葉片 272 ‘·間隙 30 :氣動工具機 31 :殼體 201223713 35 :進氣閥 351 :盲孔 354 :後座 361 :調整機構 3611 :扳動件 3612 :滑溝 3613 :支撐套環 3614 :卡槽 3615 :連接軸 362 :彈力元件 363 :固定栓 40 :氣動工具機 41 :殼體 ·· # 11In addition, in the above-mentioned embodiments, the housing of the pneumatic tool machine is in a shape of a grab. However, the housing of the pneumatic machine tool is not limited to the shape of the grab. The above-mentioned actual switching mechanism can also be applied to other forms of pneumatic machine tools. . Please refer to Fig. 8 for a pneumatic power tool according to a third embodiment of the present invention. The pneumatic housing 41 is in a straight shape, and its internal secrets (including: switching = 36) are similar to the second embodiment described above, and therefore will not be described again. The description of the embodiments is as above, but it is not intended to limit the scope of the claims. The scope of patent protection depends on the scope of the patent and its equivalent. Any knowledge in this field is: = = = the change or refinement made by the cofferdam is the equivalent change or design completed in the lower ==;:, and should be included in the simple description of the figure. For the well-known type of pneumatic machine tool. = It is shown as part of the components of the pneumatic machine. = = is shown as a pneumatic machine tool of the first embodiment of the invention. Figure 2 is an internal view of the pneumatic machine tool of the embodiment. Figure 4C is not an exploded view of the cylinder, impeller and intake valve. = all: shown as a perspective view of the cylinder. Figure 5 VIII, an exploded view with the switching mechanism. Figure 6 is a perspective view of the adjustment mechanism. A pneumatic machine tool not according to the second embodiment of the present invention. 201223713 Figure 6B is an internal view of the pneumatic power tool of the second embodiment. 6C is an exploded view of the intake valve and the switching mechanism of the second embodiment. FIGS. 7A and 7B are perspective views of the adjustment mechanism. FIG. 8 illustrates a pneumatic power tool according to a third embodiment of the present invention. [Description of main component symbols] <Prior Art> 10: Pneumatic machine tool 11: Housing 12: Drive shaft 13: Trigger 14: Adjustment mechanism 141: Knob <Embodiment> 142: Linkage 15: Cylinder 16: Intake valve 161 = front cover 162 : rear seat 1621 : 〇 type ring 20 : pneumatic power tool 21 · · housing 22 : drive shaft 23 : trigger 24 : cylinder 241 · · forward air intake 242 : reverse air intake 25: intake valve 252: front cover 2521 · notch 253 : latch 254 : rear seat 26 : switching mechanism 261 : adjustment mechanism 2611 · knob 2612 : sliding groove 2613 : linkage 2614 : slot 2615 : latch 262 : spring force Element 263: fixing bolt 27: impeller 271 · · blade 272 '· clearance 30 : pneumatic power tool 31 : housing 201223713 35 : intake valve 351 : blind hole 354 : rear seat 361 : adjustment mechanism 3611 : trigger member 3612 : Sliding groove 3613: Support collar 3614: Card slot 3615: Connecting shaft 362: Elastic element 363: Fixing bolt 40: Pneumatic power tool 41: Housing ·· # 11