201228774 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明有關一種工具機防塵開關’尤指一種應用於工具 機並可防止粉塵侵入工具機内部的防塵開關。 [0002] 【先前技術】 工具機由於體積小、價錢較低’並且可連接不同的應用 工具而形成多種變化型態，如研磨盤、砂輪機、鑽孔機 、電動板手等多種型態，可協助作業人員快速執行某些 工作程序而廣受歡迎，除了具有以電力驅動的電動工具 〇 之外，亦具有以壓力氣體聪勒的氣動工具。 [0003] 〇 而工具機在運轉時容易產生塵屑而影響工件或環境的清 潔，因此，現在市面上的工具機多半都增設有吸塵裝置 ，用來清除工具機加工時所產生的塵屑。如中華民國第 M245007號專利案所示，其揭露一種氣動式研磨機的排氣 裝置，主要包括有一本體，該本體周面侧向形成上下並 排的一上延伸部及一下延伸部，該上延伸部設有進氣通 孔，並於該進氣通孔設置一進氣接管’而該下延伸部於 下方設有一集塵罩，且於集塵罩的開口處設有一研磨盤 ，且該研磨盤設有吸塵孔，並於該下延伸部側邊設有一 連接集塵袋的集塵管，當該進器接管導入氣體使該研磨 機運轉時，該研磨盤在進行研磨工作所產生的塵埃可經 由該研磨盤上的吸塵孔引入，並通過該集塵罩進入該本 體的下延伸部，再經由集塵管而導入該集塵管末知所套 設的集塵袋中。 [0004] 另外，又如中華民國第51 7618號專利案所示，其揭露一 100100153 1002000249-0 表單編號A0I01 第3頁/共頁 201228774 種氣動式研磨機之排氣結構，係設有一具備吸塵孔之磨 輪，而在磨輪上端置設一防塵罩，該防塵罩係與馬達殼 體固接，而在馬達殼體之殼室内係容設一可動葉片氣壓 馬達組，而在於馬達殼體一側並一體延設相鄰之進氣管 及出氣管，而在進出氣管上並分別容設一進氣閥門組及 一排氣消音組，同時在於進出氣管上並設可容設節流閥 及調整鈕之容室，同時在於頂面一體延設對置之兩翼部 ，可固設一可活動之進氣板機；其中，該防塵罩内係延 設一可樞接馬達殼體之排氣管之容槽，並容槽係延設至 防塵罩連管部處，而在於馬達殼體排氣管内係設一概呈 為L狀之導管，並導管下端係設一導流板片，藉使可動葉 片氣壓馬達組之風力係向上由出風孔排出，而該導管下 端係延伸至近防塵罩連管部出口前端，而使馬達之排氣 可與防塵罩連管部之出口處形成一匯流處，而令研磨後 之塵屑可因較大之出風而被快速吸除，而在馬達殼體排 氣管與出氣管鄰接處係容設一調整鈕，該調整鈕具有一 鏤空部及一牆部，而能操控出氣路徑，並可選擇係由出 氣管排氣或由排氣管排氣。 [0005] 由上述的專利案可知，目前工具機清除塵屑的方式，都 是在工具機侧邊裝設集塵管，使工具機運轉時，可同時 進行吸塵工作。上述集塵管僅能排除部分位置的塵屑， 特別是工具機施工的位置，而一般工具機都是在握把上 設置裝設孔，用以裝設按壓開關，當施力推動按壓開關 後驅動工具機運作，但是工具機作業時產生的塵屑無所 不在，極容易由按壓開關與裝設孔間的縫隙侵入工具機 100100153 表單編號A0101 第4頁/共17頁 1002000249-0 201228774 [0006] [0007] ❹ [0008]201228774 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a dust switch of a power tool, particularly a dustproof switch applied to a machine tool and capable of preventing dust from entering the inside of the machine tool. [0002] [Prior Art] Because of the small size and low price, the machine tool can be connected to different application tools to form various changes, such as grinding discs, grinders, drilling machines, electric wrenches, and the like. It is very popular to assist operators in quickly performing certain work procedures. In addition to electric power-driven power tools, they also have pneumatic tools that use pressurized gas. [0003] 〇 While the machine tool is prone to dust during operation and affects the cleaning of the workpiece or the environment, most of the machine tools on the market now have vacuum cleaners to remove dust generated during tool machining. As shown in the Patent No. M245007 of the Republic of China, it discloses a venting device for a pneumatic grinder, which mainly comprises a body, the peripheral surface of the body is laterally formed with an upper extending portion and a lower extending portion which are arranged side by side, and the upper extending portion The portion is provided with an intake through hole, and an intake pipe is disposed in the intake through hole, and a lower dust collecting cover is disposed below the lower extending portion, and an abrasive disk is disposed at the opening of the dust collecting cover, and the grinding is performed The disc is provided with a dust collecting hole, and a dust collecting pipe connecting the dust collecting bag is arranged on the side of the lower extending portion, and the dust generated by the grinding work is performed when the grinder is introduced into the gas to make the grinder operate. The dust collecting hole is introduced through the dust collecting hole, and enters the lower extending portion of the body through the dust collecting cover, and is introduced into the dust collecting bag of the dust collecting tube through the dust collecting tube. [0004] In addition, as shown in the Patent No. 51 7618 of the Republic of China, it discloses a 100100153 1002000249-0 Form No. A0I01 Page 3 / Total Page 201228774 The exhaust structure of a pneumatic grinder is provided with a vacuum a grinding wheel of the hole, and a dust cover is arranged at the upper end of the grinding wheel, the dust cover is fixed to the motor casing, and a movable vane air motor unit is accommodated in the casing of the motor casing, and the motor casing side is located on the side of the motor casing And an adjacent intake pipe and an air outlet pipe are integrally extended, and an intake valve group and an exhaust muffler group are respectively accommodated on the inlet and outlet gas pipes, and at the same time, the inlet and outlet gas pipes are arranged to accommodate the throttle valve and adjust The chamber of the button is at the same time, and the two wings of the opposite side are integrally extended, and a movable air inlet plate machine can be fixed; wherein the dust cover is provided with an exhaust pipe capable of pivoting the motor casing The groove is provided, and the groove is extended to the joint portion of the dust cover, and an L-shaped pipe is arranged in the exhaust pipe of the motor casing, and a deflector plate is arranged at the lower end of the pipe, so that the movable plate is movable The wind power of the blade air motor unit is upwardly arranged by the air outlet hole And the lower end of the duct extends to the front end of the outlet of the dust cover connecting portion, so that the exhaust of the motor can form a confluence with the outlet of the joint portion of the dust cover, so that the dust after grinding can be larger The air is quickly sucked out, and an adjustment button is arranged adjacent to the exhaust pipe of the motor casing and the air outlet pipe. The adjusting button has a hollow portion and a wall portion, and can control the air outlet path, and can select a system. Exhaust from the outlet pipe or exhausted from the exhaust pipe. [0005] As can be seen from the above patents, the current method for removing dust by the machine tool is to install a dust collecting pipe on the side of the machine tool, so that the dust collecting work can be performed at the same time when the machine tool is running. The dust collecting pipe can only remove the dust in a part of the position, especially the position of the machine tool construction, and the general machine tool is provided with a mounting hole on the grip for installing the push switch, and driving when the pressing force pushes the push switch The machine tool operates, but the dust generated during the operation of the machine tool is ubiquitous, and it is easy to invade the machine tool 100100153 by the gap between the push switch and the mounting hole. Form No. A0101 Page 4 of 17 1002000249-0 201228774 [0006] [0007 ] ❹ [0008]
中，甚至會逸入高速旋轉的汽缸内部，造成工具機内部 零件的損壞。 【發明内容】 本發明的主要目的，在於解決上述的缺失，避免塵屑由 工具機開關的位置侵入工具機内部而造成工具機損壞。 為達上述目的，本發明提出一種工具機防塵開關，包括 一工具機以及一設置於該工具機的防塵套，該工具機具 有一握把部，該握把部上設有一通孔，並於該通孔設置 一可上下運動的驅動開關，此外，該握把部上樞設有一 控制桿，該控制桿係相對該握把部具有一樞轉行程，並 於樞轉行程中按壓該驅動開關，使該工具機運轉；而該 防塵套係設置於該工具機的握把部上，其具有一用以套 設該驅動開關的開口，且於該開口周緣形成一壓抵部以 壓抵該握把部並封閉該通孔，藉以防止塵屑由該驅動開 關與該通孔進入該工具機。 在本發明的具體實施態樣中，該工具機於該驅動開關與 該防塵套之間設有一支撐該驅動開關向上的彈性件，該 工具機的握把部於該通孔孔緣凸出地延伸出一圍繞該驅 動開關的擋牆，且該防塵套的壓抵部係抵掣於該擋牆外 圍，藉此封閉該通孔；該驅動開關設有一穿設於該通孔 與該防塵套的穿設部，該通孔孔緣設有一環部，且該驅 動開關的穿設部具有一卡掣於該環部的限位部；此外， 該防塵套具有間隔設置的凸出段與凹陷段，並設有一供 該穿設部插入的穿設孔，該驅動開關設有一延伸自該穿 設部並外露於該防塵套的第一抵靠部，且該穿設孔周緣 100100153 表單編號A0101 第5頁/共17頁 1002000249-0 201228774 [0009] [0010] [0011] [0012] [0013] 設有一抵制該第一抵靠部的第二抵靠部。 經由上述技術方案可知，本發明相較於習知技術，確保 該工具機可穩定運作，並可增加工具機的使用壽命。 【實施方式】 有關本發明的詳細說明及技術内容，現就配合圖式說明 如下： 請參閱「圖1及圖2」所示，本發明係為一種工具機1〇防 塵開關，主要包括有一工具機1〇以及—設置於該工具機 10上的防塵套30，其中，該工具機1〇具有一握把部n， 該握把部11上具有一通孔12以設置一驅動開關2〇，且於 該通孔12的孔緣設有一環部121(如圖3-2)，並向上凸出 地設置一環繞該驅動開關2〇的擋牆122。 並晴配合「圖3-1至圖3-2」所示，該驅動開關2〇具有一 穿a又於该通孔12的穿設部2 2、一延伸自該穿設部2 2的第 一抵靠部21、以及一設置於該穿設部22上的限位部23 , 且該驅動開關20以該穿設部22穿設有一彈性件24 ,如彈 簧，該彈性件24—端抵靠於該環部121的上側，另一端抵 罪於δ亥驅動開關2 〇的第一抵靠部21，使該驅動開關2 〇常 態可受該彈性件24彈力作用推動向上，且透過該限位部 23卡掣於該環部121的下側。此外，該工具機1〇於該握把 部11以一枢軸13樞設有一控制桿14，該控制桿14可相對 該握把部11產生樞轉行程，並於樞轉行程中按壓該驅動 開關20，使該工具機1〇運作。 而該防塵套30係套設於該驅動開關2〇與該彈性件24的外 100100153 表單編號Α0101 第6頁/共17頁 1002000249-0 201228774 圍，使該彈性件24位於該驅動開關20與該防塵套30之間 ，且該防塵套3 0 —端具有套設該驅動開關2 0的開口 31， 該開口 31周緣形成一壓抵部32以壓抵凸出該握把部11的 擋牆122並包圍該通孔12，而該防塵套30另一端設有一穿 設孔33，該穿設孔33係供該驅動開關20的穿設部22插入 ，且該穿設孔33周緣設有一抵制該第一抵靠部21的第二 抵靠部34，使該驅動開關20的第一抵靠部21外露於該防 塵套30，如是構成本發明的主要架構，使該工具機10在 操作時，可防止塵屑由該驅動開關20與該通孔12侵入。 [0014] 另外，請同時參閱「圖4-1至圖4-2 j所示，該防塵套30 具有間隔設置的凸出段35與凹陷段36，當該控制桿14樞 轉下壓該驅動開關20時，該驅動開關20以該第一抵靠部 21壓制該彈性件24以及該防塵套30的第二抵靠部34，使 該彈性件24受該驅動開關20推動而壓縮，且該防塵套30 受該驅動開關20推動後，可透過該凸出段35與該凹陷段 36產生形變而一併產生壓縮，而該防塵套30更可採用撓 性材質，如橡膠，不但可透過橡膠的材質達到密封、防 塵的效果，更可藉由其撓性使該驅動開關20上下運動， 而可省略彈性件24，不但可減少生產成本，更能節省組 裝時間。 [0015] 综上所述，本發明的工具機10主要於握把部11上設有通 孔12以裝設驅動開關20，且於該驅動開關20設置一防塵 套30，該防塵套30具有一套設該驅動開關20的開口 31， 且於該開口 31周緣形成一壓抵部32，用以壓抵該工具機 10的握把部11而包圍該通孔12，使該工具機10作業時所 100100153 表單編號A0101 第7頁/共17頁 1002000249-0 201228774 產生的塵屑無法由該驅動開關20與該通孔12進入該工具 機1 0内部，避免内部零件受塵屑摩擦而受損，確保該工 具機10可穩定運作，藉此增加工具機10的使用壽命。 [0016] 上述僅為本發明的較佳實施例而已，並非用來限定本發 明的實施範圍，即凡依本發明申請專利範圍的内容所為 的等效變化與修飾，皆應為本發明的技術範疇。 【圖式簡單說明】 [0017] 圖1，為本發明的外觀示意圖。 [0018] 圖2，為本發明的結構分解示意圖。 [0019] 圖3-1，為本發明的使用狀態示意圖（一）。 [0020] 圖3-2，為圖3-1的局部放大剖面示意圖。 [0021] 圖4-1，為本發明的使用狀態示意圖（二）。 [0022] 圖4-2，為圖4-1的局部放大剖面示意圖。 【主要元件符號說明】 [0023] 10..............工具機 [0024] 11..............握把部 [0025] 12..............通孔 [0026] 121.............環部 [0027] 122.............擋牆 [0028] 13..............樞轴 [0029] 14..............控制桿 100100153 表單編號A0101 第8頁/共17頁 1002000249-0 201228774 [0030] 20..............驅動開關 [0031] 21..............第一抵靠部 [0032] 22..............穿設部 [0033] 23..............限位部 [0034] 24..............彈性件 [0035] 30..............防塵套 [0036] 31..............開口 ^ [0037] 32............ . ·壓抵部 [0038] 33..............穿設孔 [0039] 34..............第二抵靠部 [0040] 35..............凸出段 [0041] 36..............凹陷段 100100153 表單編號 A0101 第 9 頁/共 17 頁 1002000249-0In the middle, even inside the cylinder that rotates at high speed, it will cause damage to the internal parts of the machine tool. SUMMARY OF THE INVENTION The main object of the present invention is to solve the above-mentioned deficiencies and prevent dust from being invaded into the machine tool by the position of the switch of the machine tool, thereby causing damage to the machine tool. In order to achieve the above object, the present invention provides a dust switch for a power tool, comprising a machine tool and a dust jacket disposed on the machine tool, the machine tool having a grip portion, the handle portion having a through hole, and The through hole is provided with a driving switch that can move up and down. In addition, the handle portion is pivotally provided with a control rod, the control rod has a pivoting stroke with respect to the grip portion, and the driving switch is pressed during the pivoting stroke. The dustproof sleeve is disposed on the grip portion of the machine tool, and has an opening for arranging the driving switch, and a pressing portion is formed on the periphery of the opening to press the same The handle portion closes the through hole to prevent dust from entering the machine tool from the drive switch and the through hole. In an embodiment of the present invention, the machine tool is provided with an elastic member supporting the driving switch upwardly between the driving switch and the dust jacket, and the grip portion of the machine tool protrudes from the edge of the through hole Extending a retaining wall surrounding the driving switch, and the pressing portion of the dustproof sleeve abuts against the outer periphery of the retaining wall, thereby closing the through hole; the driving switch is provided with the through hole and the dustproof sleeve The through hole has a ring portion, and the through portion of the drive switch has a limiting portion that is latched to the ring portion; further, the dust cover has a protruding portion and a recessed portion And a through hole for inserting the insertion portion, the driving switch is provided with a first abutting portion extending from the wearing portion and exposed to the dustproof sleeve, and the through hole peripheral edge 100100153 is the form number A0101 Page 5 of 17 1002000249-0 201228774 [0009] [0012] [0013] [0013] A second abutment portion that resists the first abutment portion is provided. According to the above technical solution, the present invention ensures stable operation of the machine tool and increases the service life of the machine tool as compared with the prior art. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description and technical contents of the present invention will now be described with reference to the drawings: Please refer to FIG. 1 and FIG. 2, which is a dust-proof switch of a machine tool, mainly including a tool. And a dust jacket 30 disposed on the power tool 10, wherein the power tool 1 has a grip portion n, and the handle portion 11 has a through hole 12 for providing a driving switch 2? A ring portion 121 (see FIG. 3-2) is disposed on the edge of the through hole 12, and a retaining wall 122 surrounding the driving switch 2 is disposed upwardly. The drive switch 2 has a through portion 2 and a through portion 2 of the through hole 12, and a portion extending from the through portion 2 2 as shown in FIG. 3-1 to FIG. 3-2. An abutting portion 21 and a limiting portion 23 disposed on the through portion 22, and the driving switch 20 is provided with an elastic member 24, such as a spring, with the elastic portion 24 The upper end of the ring portion 121 is opposite to the first abutting portion 21 of the driving switch 2 ,, so that the driving switch 2 〇 normal state can be pushed upward by the elastic force of the elastic member 24, and the limit is transmitted through the limit. The portion 23 is hooked on the lower side of the ring portion 121. In addition, the power tool 1 is pivotally provided with a control rod 14 on the pivot portion 13 . The control rod 14 can pivot with respect to the grip portion 11 and press the drive switch during the pivoting stroke. 20, the machine tool is operated. The dust jacket 30 is sleeved on the driving switch 2 〇 and the outer 100100153 of the elastic member 24, the form number Α0101, page 6 / page 17 1002000249-0 201228774, so that the elastic member 24 is located at the driving switch 20 and the Between the dust jackets 30, the dust jacket 30 has an opening 31 for arranging the driving switch 20, and a periphery of the opening 31 forms a pressing portion 32 for pressing against the retaining wall 122 protruding from the grip portion 11. The through hole 12 is surrounded by the through hole 12, and the through hole 33 is inserted into the through portion 22 of the drive switch 20, and the periphery of the through hole 33 is provided with a resistance. The second abutting portion 34 of the first abutting portion 21 exposes the first abutting portion 21 of the driving switch 20 to the dust jacket 30. If the main structure of the present invention is constructed, the machine tool 10 is operated. The dust can be prevented from intruding by the drive switch 20 and the through hole 12. [0014] In addition, please refer to FIG. 4-1 to FIG. 4-2 j at the same time, the dust jacket 30 has a protruding portion 35 and a recessed portion 36 which are spaced apart, and the driving lever 14 pivots to press the driving When the switch 20 is rotated, the driving member 20 presses the elastic member 24 and the second abutting portion 34 of the dust jacket 30 with the first abutting portion 21, so that the elastic member 24 is pushed by the driving switch 20 to be compressed, and After being driven by the driving switch 20, the dust jacket 30 can be deformed by the deformation of the protruding portion 35 and the concave portion 36, and the dust jacket 30 can be made of a flexible material, such as rubber, not only through the rubber. The material has the effect of sealing and dustproofing, and the driving switch 20 can be moved up and down by its flexibility, and the elastic member 24 can be omitted, which not only reduces the production cost, but also saves assembly time. [0015] The power tool 10 of the present invention is mainly provided with a through hole 12 in the grip portion 11 for mounting the driving switch 20, and a dust jacket 30 is disposed on the driving switch 20, and the dust jacket 30 has a set of the driving switch 20 Opening 31 and forming a pressing portion 32 at the periphery of the opening 31 for The dust is generated by the grip portion 11 of the machine tool 10 so as to surround the through hole 12, so that the dust generated by the machine tool 10 is 100100153, the form number A0101, the seventh page, the total number of pages 1002000249-0 201228774 cannot be generated by the drive switch 20 The through hole 12 enters the inside of the machine tool 10 to prevent the internal parts from being damaged by the friction of the dust, ensuring that the machine tool 10 can operate stably, thereby increasing the service life of the machine tool 10. [0016] The preferred embodiments of the invention are not intended to limit the scope of the invention, and the equivalent variations and modifications of the scope of the invention are intended to be included in the technical scope of the invention. 1 is a schematic view of the appearance of the present invention. [0018] Figure 2 is a schematic exploded view of the structure of the present invention. [0019] Figure 3-1 is a schematic view of the use state of the present invention (1). Figure 3-2 is a partially enlarged cross-sectional view of Figure 3-1 [0021] Figure 4-1 is a schematic view of the use state of the present invention (2) [0022] Figure 4-2 is a portion of Figure 4-1 Enlarged section schematic. [Main component symbol description] [0023] 10. ............Tool machine [0024] 11.............. Grip part [0025] 12........... ...through hole [0026] 121.............ring [0027] 122.............Retaining wall [0028] 13... ...........Pivot [0029] 14..............Control lever 100100153 Form No. A0101 Page 8 of 17 1002000249-0 201228774 [0030 ] 20..............Drive Switch [0031] 21..............First Abutment [0032] 22..... .........Titting Department [0033] 23..............Limiting Department [0034] 24............. .Flexible parts [0035] 30..............Sleeve cover [0036] 31..............Opening ^ [0037] 32... ......... . ·Pressure part [0038] 33..............Through the hole [0039] 34........... ...second abutment [0040] 35..............protrusion section [0041] 36.............. recessed section 100100153 Form No. A0101 Page 9 of 17 1002000249-0