碑参身8 五、新型說明： L_ f新型所屬之技術領域】 本創作係有關於一種手持式研磨機。 【先前技術】 研磨機是將研則轉動或移動以打磨I件表面的工 具，在習知研賴中，有部分研雜是_馬達轉動研磨片以 供打磨，同時能夠利用馬達排出的氣體喷氣，帶動氣流而將打 磨工㈣產生的灰塵或碎屬吸入，收集於管線後端以避免影 響工作環境，例如US6，_，197號專利所述㈣此類研磨機。 承上述’研磨機在集塵時所使用的管線需要設置在研磨機 底侧靠近研磨片處’而常有管線垂掛碰觸到工件的情形，有鑑 於此，卿04,19?號細晚賴作為錢兩段，前段管線 具有較大的傾角，而能使管線遠離工件，然而，管線過長而向 下垂掛，阻礙使用者工作的情形仍未獲徹底解決。 【新型内容】 ' 本創作之主要目的在於提供一種研磨機，能避免集塵管線 垂落碰觸工件或阻礙使用者工作。 為達成上述目的’本創作提供一種具集塵筒的研磨機，包 括有一殼體、一馬達與一集塵機構。 該馬達設於該殼體中，該殼體具有與該馬達相對應的氣體 流道，以供縮氣體輸入並帶動該馬達運轉，該馬達具有一心 軸’該心軸向下延伸，該心轴轉動時可帶動一研磨盤轉動，該 3 M438346The name of the monument is 8 5, the new description: L_ f new technology field] This creation is about a hand-held grinding machine. [Prior Art] The grinder is a tool that rotates or moves the grindstone to polish the surface of the I piece. In the conventional research, some of the grinds are _ motor rotating abrasive pieces for grinding, and at the same time, the gas jets discharged by the motor can be utilized. The air or the dust generated by the sander (4) is sucked and collected at the rear end of the pipeline to avoid affecting the working environment, such as the grinding machine described in US Pat. No. 6,197,197. According to the above-mentioned 'the pipeline used in the dust collection of the grinder, it needs to be placed on the bottom side of the grinder near the abrasive sheet' and the pipeline often hangs and touches the workpiece. In view of this, the Qing 04,19? As the two sections of money, the front section of the pipeline has a large inclination angle, and the pipeline can be kept away from the workpiece. However, the pipeline is too long and hangs downward, and the situation that hinders the user's work has not been completely solved. [New content] 'The main purpose of this creation is to provide a grinding machine that can prevent the dust collecting line from falling down against the workpiece or hindering the user's work. In order to achieve the above object, the present invention provides a grinder having a dust collecting cylinder, comprising a casing, a motor and a dust collecting mechanism. The motor is disposed in the housing, the housing has a gas flow passage corresponding to the motor for inputting and driving the motor, and the motor has a spindle axially extending downward from the core When rotating, it can drive a grinding disc to rotate. The 3 M438346
殼體具有一護罩， 一側形成有一集塵 101年8月8日修正替換頁 該護罩馳㈣々她— D〇 第 該集塵機觀括-連鮮與—集_，該連接管 ㈣第—端繼難細該第：端連接於 ’該麵筒具有—職口，該護罩内的空氣可經由該 心H連接讀人雜鑛，複_集麯顯後經由該 氣向外排出。其中該殼體可將該護罩内的空 集塵口與該連接管進人該集麟。The casing has a shroud, and one side is formed with a dust collection. On August 8th, the replacement page is replaced by the shroud. (4) 々 She - D〇 The dust collector is viewed - the fresh and the set _, the connecting pipe (four) The terminal end is connected to the 'the face tube has a job port, and the air in the shield can be connected to the person's miscellaneous ore through the heart H, and the complex _ set is displayed and then discharged outward through the gas. Wherein the casing can enter the dust collecting port in the shroud and the connecting pipe into the collecting lining.
藉此本創作所触之研雜是直接將灰塵賴於集塵機 構的集塵針’可叫去延伸過長域質的集塵管線，而能避 免集塵管線任意㈣或阻礙使用者，同時減少管路損失的影 響，提升研磨機的集塵或工作效率。 【實施方式】 以下僅以實施例說明本創作可能之實施態樣，然並非用以 限制本創作所絲護之麟，合先敛明。 明參考圖1至圖7 ’本創作提供一種具集塵筒的研磨機， 包括一殼體卜—馬達2、—集塵機構3與-喷氣機構。 請參考圖1與圖2，該殼體1具有-本體U、-延伸部 12、一開_ 13與-排氣閥14，該本體u的頂側形成圓弧凸 11卜以供使用者握持，該本體U中設有腔室，以供馬達2 裝设於其中，該本體11進一步設有向下延伸的護罩112，該 Α罩112的一侧設有集塵口 113。該延伸部12設於本體^的 4 101年8月8日修正替換頁 一側’進-步在該延伸部12設置有氣體流 對應的開關13與排氣閥μ。請參考圖4與圖5，該延伸部12 的氣體流道包括有進氣流道121與排氣流道122,進氣流道121 自外部環觀伸至本體U t的腔室，可供連接_氣體源， 使堡縮氣财經由進紐道121輸人腔室巾，_氣流道⑵ 同樣連接於外部環境與本體n中的腔室之間，可供腔室中的 氣體經由排氣流道122向外部環境排放，其中所述的外部環境 是指研磨機以外的周圍環境。該開關13包括一壓板131與一 啟動閥132’該壓板131可擺動地設於延伸部12，該啟動閥 132設於該延伸部12並可控制進氣流道121的開放與否，該 壓板131擺動時可向下觸壓啟動閥132,使啟動閥132開放進 氣流道121，而使壓縮氣體可流動經過該進氣流道121。請參 考圖2與圖4’該排氣閥14具有一貫穿的孔道141，該排氣閥 14設於該延伸部12並可控制排氣流道122的開放情形，該排 氣閥14可轉動，使孔道141逐漸傾斜於排氣流道122，使孔 道141的周壁逐漸阻塞排氣流道122，改變排氣流道122的開 放情形。 請參考圖4與圖6，該馬達2具有一心軸21，該馬達2設 於本體11的腔室中，使馬達2與殼體的氣體流道相對應，壓 縮氣體可經由進氣流道121輸入，帶動馬達2運轉，再經由排 氣流道122向外排放，所述帶動馬達2運轉是指驅動馬達2而 使馬達的心軸21轉動，該馬達的心軸21向下延伸至護罩ιΐ2 使護罩m圍繞於心軸21底端的周圍，^_^替換頁 進一步裝設有副轉軸22與研磨盤23，使 帶動研磨㈣_。 釉η轉動時可 請參考圖i至圖3，該集塵機構3包括—連接管Μ與一 :塵筒幻。該連接管具有一第一端與—第二端，由第一端至 =二端依序連接有第一段3n、彎折段312與第二段313，其 該第-端組接連接於殼體的集塵口 113，第二端則連接於集 湾32 ’使集塵筒32被設置位於殼體的_側，使該護罩⑴ 内的空氣可經由該集塵口 113與該連接管31進入該集塵筒 ’再經該集塵筒32過濾後向外排出，較佳者，集塵筒幻的 體積不大於殼體的三倍，以便於供使用者手持操作。在本實施 财，連接管是以第二段阳與集塵筒32連接為一體，然而 第二段313與集塵筒32也可以改以組裝連接無妨；甚至連接 管亦得為設計長度之單一管路，藉由單—管路第一端與集塵口 連接:第二端則越雜連接，令研磨_得麵連接管導入 集塵4另外連接管無命為單一管路或圖式所揭之多截式管路 設計^能進—步延伸長度使該集塵筒得吊掛於腰部使用。 心考圖3與圖7，該集塵筒具有一底壁321與管狀的周 璧322，該周壁322自底壁321的周緣向前延伸而圍構出具有 開的今置工間’第二段313係連接於周壁您，該周壁 遠誠壁321 #一端設有可_的蓋體323，該蓋體313可擺 動而盍合於容置空間的開口。該集塵筒具有管狀的内表面，該 M438346 . _____ 101年8月8日修正替換頁 . 内表面位於周壁322的内侧。該底壁321具^^^7^ 集塵筒中的氣體經由排氣口向外排出，該排氣口進一步設有一 調整閥324，該調整閥324螺鎖於底壁321，而可用以調整流 經排氣口的氣體流量。該集塵筒更具有一管狀的擋板325，該 擋板325設置位於容置空間中，並將容置空間分隔為内容室與 外谷室，該外容室位於内表面與擋板325之間，該連接管的第 二端連接於外容室，該擋板325的一端固設於底壁32丨並連接 • 於排氣口，另一端則自由開放，使内容室與外容室在遠離底壁 321的一端相連，較佳者，擋板325形成有數個通孔326，使 内容室與外容室進一步也經由通孔326相連。 在集塵機構中，該連接管於第二端的中心延伸線，即第二 段313的中心延伸線與内表面的中心線不相交且不平行，較佳 者，沿著該連接管於第二财心延伸線與該内表面中心線的公 垂線’即圖7的視角方向觀之，該連接管於第二端中心延伸 # 線，即第二段313的中心延伸線與該内表面中心線之間的炎角 大於60度。 青參考圖至圖6 ’該嘴氣機構形成有-噴氣流道41，該 喷氣流道4丨位於延伸部12並連接於舰紐道a與該連接 • 料第一段311之間’使壓縮氣體可經由該進氣流道121與該 喷氣流道41向該連接管内噴出，帶動該連接管内的空氣朝向 該第二端流動，較佳者，噴氣機構更包含有一控制閥42，該 喷氣流道包括有導引段411、環形槽412與多個氣孔413。更 7 M438346 _ I 101年正替換百 詳細地說’該喷氣流道41係成型於延伸部 段311中，並連接於進氣流道121中相對於啟動閥132的下游 處，所述的下游是指壓縮氣體進入進氣流道121後，相對而言 較晚流經之處，換言之，壓縮氣體進入進氣流道121後會先經 過啟動閥132再到達喷氣流道41與進氣流道121連接處。該 喷氣流道41自進氣流道121向下延伸至控制閥42，該控制閥 42可轉動地設於延伸部12，如圖2所示，該控制閥幻形成有 轴向延伸的中心孔421以及數個徑向延伸的通氣孔422，該些儀 通氣孔422各自連接於中心孔42卜且該些通氣孔422的大小 各不相同，該控制閥42可供轉動而將喷氣流道41封閉，或者 以其中一個通氣孔422導通喷氣流道41，使控制閥42可控制 喷氣流道的氣體流量。請參考圖2、圖2Α、圖4與圖6，該噴 氣流道的導引段411進一步由控制閥的中心孔422延伸至連接 管的第一段311中，而連接於環形槽412，該環形槽412位於 連接管第一段311的内側’且該環形槽412環繞於第一段的中魯 心線’該些氣孔413沿環形槽412分佈而位於第一段311的内 側’且該些氣孔413連接於環形槽412以及連接管第一段31ι 的内部》 利用上述裝置，請參考圖4至圖6，使用者欲使用研磨機 時，可先將壓縮氣體源連接於延伸部12的進氣流道121，握 持於殼體的本體11後，將壓板131下壓，使壓板131觸壓啟 動閥132，壓縮氣體隨即經由進氣流道121進入腔室，驅使馬 8 101年8月8曰修正替換頁 達2運轉，使研磨盤23轉動，壓縮氣體隨後從排氣流道122 排出’使用者可以轉動排氣閥14，改變排氣流道122的開放 情形，從而控制馬達2的運轉情形與研磨盤23的轉速。其中， 如圖5與圖8所示，部分的壓縮氣體進入進氣流道121後將會 分流進入噴氣流道41，使壓縮氣體流經控制閥42、導引段411 與環形槽412,再經由氣孔413向連接管的第一段311中喷出， 帶動連接管中的氣體朝向連接管的第二端流動，進而帶動空氣 由外部流動經過研磨盤23與殼體1之間的縫隙、護罩112内 部、集塵口 113與連接管，進入集塵筒32中。 請參考圖9，由於連接管的第二段313連接於集塵筒的周 壁322，且其中心線呈現不平行也不垂直的態樣，使空氣經由 第二段313進入集塵筒的外容室後受到内表面導引，而於外容 室中形成繞内表面中心線旋轉的旋轉氣流，此時，灰塵與碎屑 會因氣流蝴旋轉而制離々力伽，魏錄關外容室的 外侧’即周壁322或内表面附近，靠近内容室的空氣則攜帶較 少的錢與碎屑，可經由擋板325自由開放的一端或通孔挪 進入内谷至’再進—步經由排氣口向外部環境排出，使空氣在 集塵筒㈣除灰塵與碎概，再由集塵筒的排氣π排出，獲得 集塵的使用效果。 承上述本創作可利用集塵機構的集塵筒過遽空氣，將灰 塵收集於其中僅僅需要將集塵筒裝設而位於殼體的一側即 可’體積小’不須要再連接過長的集塵管線，而能完全去除集 M438346 塵管線垂落碰觸工件或阻礙使用者的· 曰修正替換土 用效果，更進一牛山/ 擾，具有極為便利的使 卓腳、牟 ’不須擔心任意延伸散落各處的管線鉤住 桌腳架子，甚至綷倒在周圍活動的其他人員。 =本創作可將殼體的護罩内的空氣直接導引至集塵筒 響，而心二乳流經的管線，減輕管路損失對氣流強度的影 於獲取或雒持較強的集塵氣流，獲取較佳的集塵效 果0 〜，者，本創作是利用殼體中的嘴氣機構’從進氣流道或排# ^道將氣體導引喷入集塵機構中的連接管，進而帶動空氣流 動’使4勒的空氣被料經由集塵口與連接管進人集塵筒， 集塵機構中不需要另外裝設推動空氣流動的動力裝置，可限縮 集塵筒的體積與重量’避㈣顧成為操作使科的累資。 此外，在本創作能獲取較強的集塵氣流的情形下，使本創 作可進-步利用集塵筒導引氣流旋轉，利用離心力而直接將灰 塵與碎屑從空氣中分離’不需要額外裝設_或缝，在清除# 收集的灰塵時也僅僅需要打開集塵筒，將灰塵倒出即可，兼具 結構簡潔以及易於清理灰塵的特點。 請參考圖10與圖1卜在前述實施例中，集塵筒中雖然是 利用導引氣流旋轉的方式分離灰塵，然而改以濾網或類似的過 濾裝置攄除錢亦射行，更詳細地說，在本創作其他實施例 中，集塵筒中可以具有排氣口與濾網，集塵筒圍構有一容置空 間，可以如圖10所示將濾網331套蓋於集塵筒33的排氣口， M438346 101年8月8日修正替換頁 .’· 或者可以如圖11所示將遽網341設置位於 • 間中，並將集塵筒34中的容置空間分隔為-上游空間與一下 游空間’該上游空間與連接管的第二段313，即第二端相連， 該下游空間則與該排氣口相連，藉此，在空氣經由第二段313 進入集塵筒，進-步經由排氣σ排出前，必須流動穿過遽網， 而可侧義齡空氣中攜帶的灰塵與觸，囉獲得集塵與 過濾空氣的使用效果；更佳者，則於集塵筒排氣口套設一金屬 • 細’再於容置空間增設一布質遽網，排氣口處之金屬濾、網得 先行過龍錄徑之碎屑’容置郎之布__進行粒徑較 細之灰塵讀，藉此獲得更佳之過濾效果。 【圖式簡單說明】 圖1為本創作之立體圖。 圖2為本創作之立體分解圖。 圖2Α為本創作之連接管另一視角立體圖。 # ®3為本創作中集塵筒之立體分解圖。 目4至圖6為本創作各部位之剖視圖。 圖7為本創作中集塵筒之剖視圖。 圖8為本創作之氣流方向示意圖。 圖9為本創作中集塵筒之氣流方向示意圖。 圖10為本創作中鱼 果塵畸之第二實施例示意圖。 圖11為本創作中集塵筒之第三實_示意圖。 M438346 101年8月8日修正替換頁 【主要元件符號說明】 1 :殼體 11 :本體 111 :凸部 112 :護罩 113 :集塵口 12 :延伸部 121 :進氣流道 122 :排氣流道 13 :開關 131 :壓板 132 :啟動閥 14 :排氣閥 141 :孔道 2 :馬達 21 :心軸 22 :副轉轴 23 :研磨盤 3:集塵機構 31 :連接管 311 :第一段 :彎折段 -- :第二段 集塵筒 =底壁 :周壁 :蓋體 :調整閥 鲁 =擋板 :通孔 集塵筒 :濾網 集塵筒 :濾網 喷氣流道 · :導引段 :環形槽 :氣孔 控制閥The work that this creation touches is that the dust collecting needle that directly relies on the dust collecting mechanism can be called to extend the long-distance dust collecting pipeline, and can avoid the dust collecting pipeline arbitrarily (four) or hinder the user, and at the same time reduce The effect of pipeline loss increases the dust collection or working efficiency of the mill. [Embodiment] The following is a description of possible implementations of the present invention, but it is not intended to limit the lining of the creation of the creation. Referring to Figures 1 through 7', the present invention provides a grinder having a dust collecting cylinder comprising a casing-motor 2, a dust collecting mechanism 3 and a jet mechanism. Referring to FIG. 1 and FIG. 2, the housing 1 has a body U, an extension portion 12, an opening _ 13 and an exhaust valve 14. The top side of the body u forms a circular arc 11 for the user to grip. The body U is provided with a chamber for the motor 2 to be mounted therein. The body 11 is further provided with a downwardly extending shield 112, and one side of the cover 112 is provided with a dust collecting port 113. The extension portion 12 is provided on the side of the main body of the modified replacement page on August 8, 101. The step 13 is provided with a gas flow corresponding switch 13 and an exhaust valve μ at the extension portion 12. Referring to FIG. 4 and FIG. 5 , the gas flow path of the extending portion 12 includes an intake flow path 121 and an exhaust flow path 122 , and the intake flow path 121 extends from the outer ring to the chamber of the body U t . Connected to the gas source, so that the fortune gas is transferred into the chamber towel via the inlet channel 121, and the air channel (2) is also connected between the external environment and the chamber in the body n, and the gas in the chamber is exhausted. The flow path 122 is discharged to the external environment, wherein the external environment refers to the surrounding environment other than the grinder. The switch 13 includes a pressing plate 131 and a starting valve 132'. The pressing plate 131 is swingably disposed on the extending portion 12. The starting valve 132 is disposed at the extending portion 12 and can control the opening or not of the intake air flow path 121. When the 131 swings, the start valve 132 can be pressed downward to open the intake runner 121, so that the compressed gas can flow through the intake runner 121. Referring to FIG. 2 and FIG. 4', the exhaust valve 14 has a through hole 141. The exhaust valve 14 is disposed on the extending portion 12 and can control the opening condition of the exhaust flow passage 122. The exhaust valve 14 can be rotated. The tunnel 141 is gradually inclined to the exhaust runner 122 such that the peripheral wall of the tunnel 141 gradually blocks the exhaust runner 122, changing the opening condition of the exhaust runner 122. Referring to FIG. 4 and FIG. 6 , the motor 2 has a spindle 21 disposed in the chamber of the body 11 such that the motor 2 corresponds to the gas flow passage of the housing, and the compressed gas can pass through the intake passage 121 . The input drives the motor 2 to operate, and then discharges outward through the exhaust runner 122. The driving of the motor 2 refers to driving the motor 2 to rotate the spindle 21 of the motor, and the spindle 21 of the motor extends downward to the shield. The ΐ2 surrounds the periphery of the bottom end of the mandrel 21, and the replacement page is further provided with the sub-rotating shaft 22 and the grinding disc 23 to drive the grinding (4)_. When the glaze η is rotated, please refer to FIG. 3 to FIG. 3, and the dust collecting mechanism 3 includes a connecting pipe and a dust drum. The connecting tube has a first end and a second end, and the first end 3n, the bent section 312 and the second section 313 are sequentially connected from the first end to the second end, and the first end is connected to the first end. The dust collecting port 113 of the casing is connected to the gully 32' so that the dust collecting cylinder 32 is disposed at the _ side of the casing, so that the air in the hood (1) can be connected to the air through the dust collecting port 113. The tube 31 enters the dust collecting cylinder and is discharged through the dust collecting cylinder 32. Preferably, the volume of the dust collecting cylinder is not more than three times that of the casing, so as to be operated by the user. In the implementation of the present invention, the connecting pipe is connected with the second section of the anode and the dust collecting cylinder 32. However, the second section 313 and the dust collecting cylinder 32 may be replaced by an assembly connection; even the connecting pipe may have a single design length. The pipeline is connected to the dust collecting port by the first end of the single pipe: the more the second end is connected, the grinding pipe is introduced into the dust collecting 4, and the connecting pipe is inactive as a single pipe or a pattern. The multi-section pipeline design can be extended to allow the dust collector to be hung on the waist. Referring to FIG. 3 and FIG. 7, the dust collecting cylinder has a bottom wall 321 and a tubular peripheral 322 extending forward from the periphery of the bottom wall 321 to enclose a second working chamber. The segment 313 is connected to the peripheral wall. The peripheral wall 321 is provided with a cover 323 at one end, and the cover 313 can be swung to fit into the opening of the accommodating space. The dust collecting cylinder has a tubular inner surface, the M438346. _____ August 8, 101 revised replacement page. The inner surface is located inside the peripheral wall 322. The bottom wall 321 has a gas in the dust collecting cylinder and is discharged outward through the exhaust port. The exhaust port is further provided with a regulating valve 324, and the adjusting valve 324 is screwed to the bottom wall 321 to adjust the flow. The flow of gas through the exhaust port. The dust collecting cylinder further has a tubular baffle 325 disposed in the accommodating space and partitioning the accommodating space into a content chamber and an outer trough chamber, the outer chamber being located at the inner surface and the baffle 325 The second end of the connecting pipe is connected to the outer chamber, and one end of the baffle 325 is fixed to the bottom wall 32丨 and connected to the exhaust port, and the other end is freely opened, so that the content room and the outer room are The end of the bottom wall 321 is connected. Preferably, the baffle 325 is formed with a plurality of through holes 326 for further connecting the content chamber and the outer chamber via the through holes 326. In the dust collecting mechanism, the central extension line of the connecting tube at the second end, that is, the central extension line of the second section 313 does not intersect with the center line of the inner surface and is not parallel, preferably, the second tube along the connecting tube The center line of the inner surface and the center line of the inner surface, that is, the viewing direction of FIG. 7, the connecting tube extends at the center of the second end, that is, the center line of the second stage 313 and the center line of the inner surface. The inflammatory angle between the two is greater than 60 degrees. The reference frame to Fig. 6 'the mouth gas mechanism is formed with a jet flow path 41 which is located at the extension portion 12 and is connected between the ship lane a and the first section 311 of the connection material to make compression The gas may be ejected into the connecting pipe through the inlet flow path 121 and the jet flow path 41 to drive the air in the connecting pipe to flow toward the second end. Preferably, the gas jet mechanism further includes a control valve 42 for the jet flow. The track includes a guiding section 411, an annular groove 412 and a plurality of air holes 413. 7 M438346 _ I 101 years is replacing 100. The jet channel 41 is formed in the extension section 311 and is connected to the downstream of the intake runner 121 with respect to the start valve 132, the downstream It means that after the compressed gas enters the intake runner 121, relatively late, in other words, after the compressed gas enters the intake runner 121, it will first pass through the start valve 132 and then reach the jet runner 41 and the intake runner. 121 connection. The jet flow path 41 extends downward from the intake flow path 121 to the control valve 42. The control valve 42 is rotatably disposed on the extension portion 12. As shown in FIG. 2, the control valve is formed with an axially extending central hole. 421 and a plurality of radially extending vents 422, each of the vents 422 are connected to the central hole 42 and the vents 422 are different in size, and the control valve 42 is rotatable to rotate the jet channel 41. Closing, or opening the jet channel 41 with one of the vents 422, allows the control valve 42 to control the flow of gas to the jet channel. Referring to FIG. 2, FIG. 2, FIG. 4 and FIG. 6, the guiding section 411 of the jet flow passage is further extended from the central hole 422 of the control valve into the first section 311 of the connecting pipe, and is connected to the annular groove 412. The annular groove 412 is located on the inner side of the first section 311 of the connecting pipe and the annular groove 412 is surrounded by the middle core line of the first section. The air holes 413 are distributed along the annular groove 412 to be located inside the first section 311 and the The air hole 413 is connected to the annular groove 412 and the inside of the first section 31 of the connecting pipe. With the above device, please refer to FIG. 4 to FIG. 6 , when the user wants to use the grinder, the compressed gas source may be connected to the extension 12 first. After the airflow path 121 is gripped on the body 11 of the casing, the pressure plate 131 is pressed down, and the pressure plate 131 is pressed against the activation valve 132, and the compressed gas then enters the chamber through the intake air passage 121, driving the horse 8 August 101. 8曰 Correction of the replacement page up to 2, the grinding disc 23 is rotated, and the compressed gas is then discharged from the exhaust runner 122. The user can rotate the exhaust valve 14 to change the opening condition of the exhaust runner 122, thereby controlling the motor 2 The operating condition and the rotational speed of the grinding disc 23. As shown in FIG. 5 and FIG. 8, part of the compressed gas enters the intake runner 121 and is diverted into the jet passage 41, so that the compressed gas flows through the control valve 42, the guiding section 411 and the annular groove 412, and then The first hole 311 of the connecting pipe is sprayed through the air hole 413 to drive the gas in the connecting pipe to flow toward the second end of the connecting pipe, thereby driving the air to flow from the outside through the gap between the grinding disk 23 and the casing 1 The inside of the cover 112, the dust collecting port 113 and the connecting pipe enter the dust collecting cylinder 32. Referring to FIG. 9, since the second section 313 of the connecting pipe is connected to the peripheral wall 322 of the dust collecting cylinder, and the center line thereof is not parallel or vertical, the air enters the outer casing of the dust collecting cylinder via the second section 313. After the chamber is guided by the inner surface, a swirling airflow is formed in the outer chamber that rotates around the center line of the inner surface. At this time, dust and debris will be separated from the force by the airflow, and the Weiluguan outer chamber is The outer side, that is, near the peripheral wall 322 or the inner surface, the air near the content chamber carries less money and debris, and can be moved into the inner valley via the freely open end or through hole of the baffle 325 to 're-intake-step through the exhaust The mouth is discharged to the external environment, so that the air is removed from the dust collecting cylinder (4), and then discharged by the exhaust gas π of the dust collecting cylinder to obtain the effect of collecting dust. According to the above-mentioned creation, the dust collecting cylinder of the dust collecting mechanism can be used to pass the air, and the dust is collected therein, and only the dust collecting cylinder needs to be installed and located on one side of the casing, so that the volume is small and there is no need to connect the long set. Dust line, can completely remove the set M438346 Dust line drooping to touch the workpiece or hinder the user's 曰 Correction to replace the earth effect, and further into a mountain / disturbance, with great convenience to make the foot, 牟 'do not worry about any extension The pipelines everywhere hooked the table legs and even tripped over to other people around the activity. = This creation can directly guide the air in the shield of the casing to the dust collector, and the pipeline through which the heart is flowing can reduce the impact of the pipeline loss on the airflow intensity or obtain a strong dust collection. Airflow, to obtain a better dust collecting effect 0 ~, the author is to use the mouth gas mechanism in the housing to guide the gas from the inlet flow channel or the channel into the connecting pipe in the dust collecting mechanism, and then Drive the air flow' so that 4 liters of air is fed into the dust collecting cylinder through the dust collecting port and the connecting pipe. The dust collecting mechanism does not need to separately install a power device that pushes the air flow, and can limit the volume and weight of the dust collecting cylinder. Avoid (four) Gu become the operation of the division of the capital. In addition, in the case where the creation can obtain a strong dust collecting airflow, the creation can further utilize the dust collecting cylinder to guide the airflow to rotate, and directly separate the dust and debris from the air by centrifugal force. Install _ or seam, when you remove the dust collected by #, you only need to open the dust collector to pour out the dust, which is characterized by simple structure and easy to clean dust. Please refer to FIG. 10 and FIG. 1 . In the foregoing embodiment, although the dust is separated by the guiding airflow in the dust collecting cylinder, the filter or the similar filtering device is used to remove the money, and in more detail, In other embodiments of the present invention, the dust collecting cylinder may have an exhaust port and a filter net, and the dust collecting cylinder surrounds an accommodating space, and the filter 331 may be sleeved on the row of the dust collecting cylinder 33 as shown in FIG. Air port, M438346 Corrected replacement page on August 8, 101. '· Or the 遽 net 341 can be placed in the room as shown in Figure 11, and the accommodation space in the dust collecting drum 34 is divided into - upstream space and a downstream space 'the upstream space is connected to the second section 313 of the connecting pipe, that is, the second end, and the downstream space is connected to the exhaust port, whereby the air enters the dust collecting cylinder through the second section 313, into- Before the step is discharged through the exhaust σ, it must flow through the net, and the dust and the light carried in the air of the right age can be used to obtain the effect of collecting dust and filtering air; more preferably, it is exhausted in the dust collecting cylinder. The mouth is made of a metal • thin 'and a fabric net is added to the space. Metal filter of the air inlet, through the first network chips have long record of diameter '__ accommodating Langevin cloth for a more fine particle size of the dust is read, thereby obtaining the better filtering effect. [Simple description of the drawing] Figure 1 is a perspective view of the creation. Figure 2 is an exploded perspective view of the creation. Figure 2 is a perspective view of another perspective view of the connecting tube of the present invention. # ®3 is an exploded view of the dust collector in the creation. 4 to 6 are cross-sectional views of various parts of the creation. Figure 7 is a cross-sectional view of the dust collecting cylinder of the present invention. Figure 8 is a schematic view of the airflow direction of the present creation. Figure 9 is a schematic view of the airflow direction of the dust collecting cylinder in the present creation. Fig. 10 is a schematic view showing a second embodiment of fish dustiness in the present invention. Figure 11 is a third practical view of the dust collecting cylinder in the present creation. M438346 Correction replacement page on August 8, 101 [Main component symbol description] 1 : Housing 11 : Main body 111 : convex portion 112 : Shield 113 : Dust collecting port 12 : Extension portion 121 : Intake flow path 122 : Exhaust Flow path 13: switch 131: pressure plate 132: start valve 14: exhaust valve 141: hole 2: motor 21: mandrel 22: secondary shaft 23: grinding disc 3: dust collecting mechanism 31: connecting tube 311: first paragraph: Bending section --: 2nd section Dust collector = bottom wall: perimeter wall: cover body: adjustment valve lu = baffle: through hole dust collector: filter dust collector: filter jet channel · guide section : Annular groove: vent control valve
:中心孑L •通氣孔 12: Center 孑L • Vent 12