201008722 .九、發明說明： . 【發明所屬之技術領域】 本發明係與動力4有p，詳巾言之 動工具之消音農置，可有效消除排氣的嚼音。便用於乱 【先前技術】 按’氣動工具係以高壓氣體為動力源，氣體流入工且 ..„子運轉，之後再氣動工具。為了降低排氣時㈣ 曰’氣動工具大都裝設有消音的構造。 ¢1 f知-魏動具ϋ結構，如我目公告編麟32325〇 號(申請案號第86106732號）「用於衝擊扳手之消音器」發明 專利案所示’其>肖音器(Α)的二端為大徑管狀部(2Ga)(2〇e)，以 及連接於其間之小徑管狀部(2〇b)。大徑管狀部(2〇a)在圓周 上等間隔設有六個孔(21);而大經管狀部(2〇c)的圓壯則另設 有六個孔(22)。 該消音器(A)裝設於氣動工具的排氣通路(1〇)中；廢氣由前 端的;^徑管狀部(20a)流入消音器，部分氣流係軸向地直接流向 小徑管狀部(20b)，復由後端的大徑管狀部(2〇c)排出消音器； ® 其他f流則自大徑管狀部(2。_孔(21)侧向流出消音器、流入 至^氣通路(ίο)的空間，再自另一大徑管狀部(2〇c)的孔(22)流 進消音器’並與軸向流動的氣流一起自大徑管狀部(2〇c)排出消 音器。 該消音器只是單純地使部分氣流側向流動，由前端的大徑 管f部(20a)流出消音器，復自後端的大徑管狀部(2〇c)流入消 音器後，即直接排出，藉以消除反壓，其侧向氣流之流動設計 並未能有效地提供消音或減音作用。 再者，上揭設計係使廢氣完全地自消音器(A)前端流入， 5 201008722 H㈣作分流，此微向設計所域朗消音效果並 此外，習知各式消音裝置均為狀尺寸，無法變動。 r有鑑於此，發明人乃研糾本發明，以解決上揭缺失。 【發明内容】 具之消音裝置，具 本發明之主要目的在於提供一種動力工 有較佳的消音效果。201008722. Nine, invention description: [Technical field of the invention] The present invention is related to the power 4, and the sound-absorbing farm of the moving tool can effectively eliminate the chewing sound of the exhaust. It is used for chaos [previous technique] According to the 'pneumatic tool system, the high-pressure gas is used as the power source, the gas flows into the work and the ....sub-running, then the pneumatic tools. In order to reduce the exhaust gas (4) 曰' pneumatic tools are mostly equipped with silencer The structure of ¢1 f know-Wei kinetics , , , 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 323 The two ends of the sounder (Α) are a large-diameter tubular portion (2Ga) (2〇e), and a small-diameter tubular portion (2〇b) connected therebetween. The large-diameter tubular portion (2〇a) is provided with six holes (21) at equal intervals on the circumference; and the large tubular portion (2〇c) is rounded with six holes (22). The muffler (A) is installed in the exhaust passage (1〇) of the pneumatic tool; the exhaust gas flows into the muffler from the front end; the tubular portion (20a), and the partial airflow flows axially directly to the small-diameter tubular portion ( 20b), the large-diameter tubular portion (2〇c) at the rear end is discharged from the muffler; the other f-flow flows from the large-diameter tubular portion (2._ hole (21) laterally out of the muffler, into the gas passage ( The space of the ίο) flows from the hole (22) of the other large-diameter tubular portion (2〇c) into the muffler' and exits the muffler from the large-diameter tubular portion (2〇c) together with the axially flowing airflow. The muffler simply flows the partial airflow laterally, and flows out of the muffler from the large-diameter pipe f portion (20a) at the front end, and the large-diameter tubular portion (2〇c) from the rear end flows into the muffler, and is directly discharged. In order to eliminate the back pressure, the flow design of the lateral airflow does not effectively provide the muffling or sound reduction effect. Furthermore, the design is designed to make the exhaust gas flow completely from the front end of the muffler (A), 5 201008722 H (4) for shunting, This micro-directional design has a muffling effect and, in addition, various types of muffler devices are of a size and cannot be changed. Correcting the present invention is the research to solve the exposing deletion. SUMMARY OF THE INVENTION The muffler device having, with the main object of the present invention is to provide a power tool with a better noise reduction effect.
本發明之另一目的在於提供一種動力工具之消音裝置，盆 為模組化的設計。 〃 爰以達成上揭目的，本發明所提供之消音裝置，包含有： -主體’為-長形體’其内部具有一轴向氣道；該氣道之内壁 設有多數個内徑較窄之通氣截面；預定數目之徑向通孔，設於 該主體外周面，與雜向氣道連通，且沿著該主體之轴向呈多 圈排列L該等窄的通氣截面係分別位於該等多數圈徑向通孔之 間；一消音構件，設於該主體外周，包覆該等多數圈之徑向通 孔。 藉此，該軸向氣道内形成寬窄不同之通氣截面，使氣流於 軸向氣道内之流速及壓力產生變化；同時，氣流可經由該等徑 向通孔於消音裝置之内、外流動。該消音裝置因而具有軸向與 徑向流動之氣流，可相互抵消’達成消音及降低流速之效果。 進一步者’該本體係由至少一前節及至少一後節相互套接 而成’使該本體形成模組化之組合結構。 【實施方式】 為使貴審查委員能進一步瞭解本發明之目的、特徵以及 所達成之功效’以下茲舉本發明二較佳實施例，並配合圖式詳 細說明於后。 6 201008722 發明一較佳實施例之後視立體圖。 第一圖係第一圖之分解立體圖。 ϋ'ίί明一較佳實施例之主體之後視立體圖。 第五圖係第一之前視立體圖。 顯示本發日設於-氣動工具之剖面示意圖。 第七圖顯示氣流流經本發明之狀態。Another object of the present invention is to provide a sound absorbing device for a power tool, the basin being of a modular design. In order to achieve the above object, the present invention provides a sound absorbing device comprising: - a body 'is an elongated body' having an axial air passage therein; and an inner wall of the air passage is provided with a plurality of air passage sections having a narrow inner diameter a predetermined number of radial through holes are provided on the outer peripheral surface of the main body, communicating with the miscellaneous air passages, and arranged in a plurality of turns along the axial direction of the main body. The narrow aeration cross-sectional portions are respectively located in the radial direction of the plurality of rings. Between the through holes; a sound absorbing member disposed on the outer circumference of the body, covering the radial through holes of the plurality of rings. Thereby, a wide and narrow aeration cross section is formed in the axial air passage to change the flow velocity and pressure of the airflow in the axial air passage; and at the same time, the airflow can flow inside and outside the silencing device through the radial through holes. The muffler thus has an axially and radially flowing airflow that cancels each other out to achieve the effect of muffling and reducing the flow rate. Further, the system is formed by arranging at least one front section and at least one rear section to form a modular combined structure. [Embodiment] The present invention has been described in detail with reference to the preferred embodiments of the present invention. 6 201008722 A rear perspective view of a preferred embodiment of the invention. The first figure is an exploded perspective view of the first figure. BRIEF DESCRIPTION OF THE DRAWINGS A rear perspective view of a main body of a preferred embodiment. The fifth figure is a first front perspective view. The schematic diagram of the profile of the pneumatic tool is shown on this date. The seventh figure shows the state in which the airflow flows through the present invention.
第八圖係，伽另—較佳實施例之立體圖。 第九圖係帛八圖之大部分解立體圖。 立奘；2第—之二圖’顯示本發明一較佳實施例所提供之消 及包覆於該主體外周之消音 她、n域(為一中空的長形體，具有-轴向的氣 ^ _四圖，且周面設有多數徑向通孔，與該氣道連通。 更詳而言之： 欣响參閱第一至四圖，該主體(20)由至少一前節(30)與一後 = (50)相I套接而成，形成模組化之結構。本實使用二前 節與一後節。 該前節(30)為一中空的筒狀體，具有一軸向的通道(32)， 如第四、五圖；若干徑向通孔(34)，設於前節周面，與該通道 (32)連通。睛參閱第五圖，該通道(34)設有不同内徑之通氣截 面’斷面(35)之處為内徑較大之通氣截面，而斷面⑽之處則 為内徑較小之通氣截面，因而，通道(32)内具有寬、窄之截面。 各通氣截面之橫斷面可如圖所示呈圓形，亦可為其他形狀的幾 何圖形，例如三角形、五角形等多角形。 在前節的轴向上，本實施例使前節(3〇)之徑向通孔(34)呈 前、後二圈之方式排列；該窄的通氣截面(36)恰位於該二圈氣 孔之間。此外’本實施例使相鄰的二個徑向通孔(34)之間以細 7 201008722 長的肋條(341)相隔’俾使通孔之面積能儘可能的大，提昇氣 體之流通量。 前節(30)之前端設一前套接部(40);而後端設一後套接部 (45) ’以便二個前節、或是前節與後節可軸向連接。該前套接 部(40)為一環垣，其内周壁並設一圈扣環(42);該後套接部(45) 係由若干自前節(30)後端向後延伸呈環形及適當間隔排列之 彈性凸肋(46)所構成；各凸肋之自由端並設一··^鉤(48)。 該後節(50)亦為一中空的筒狀體，具有一轴向的通道 (52) ’以及若干徑向通孔(54)，設於後節周面，連通該通道(52)， 並呈前後二圈之方式排列於後節周面。同樣的，如第五圖所 示’該通道(54)設有内徑較大之通氣截面(55)，以及内徑較小 之通氣截面(56)，使通道(52)内具有寬、窄不同的截面。該較 窄的通氣截面(56)係位於該二圈通孔(54)之間。各通氣截面之 橫斷面可為圓形或其他幾何形狀；徑向通孔(54)亦具有大孔 積’以提供高的氣體流通量。 後節(50)之前端設一前套接部(60)，其結構與前節之前套 接部(40)相同，為一環垣，内周面並設一扣環(62)，如第五圖； 此外，後節(50)之後端更設一膨脹室(65)，其徑向寬度大於通 道(54)之寬度，後節於膨脹室之處之外徑係大於後節其^^纟 之外徑。 組合時，如第三至五圖所示，令二個前節相互套接，第一 個前節(30a)以其後套接部(45)與第二個前節(3〇b)的前套接部 (40)套接，該後套接部之凸肋(46)之卡鉤(48)並彈性卡扣於該前 套接部之扣環(42) ’使該二前節彈性卡扣定位。該後節(5〇)則 以其前套接部(60)與第二個前節(3〇b)之後套接部(45)套接，前 節(30b)之彈性凸肋(46)係卡扣於後節(5〇)之前套接部之扣環 (62)，使該二者卡扣定位。 8 201008722 前、後節組接後即構成消音裝置之主體(20)，該等通道(34) 及(54)形成主體之軸向氣道(25);於軸向氣道内，該三個較窄 的通氣截面(36)及(56)係間隔地排列，如第五圖，使軸向氣道 内形成寬、窄的通氣截面交錯設置，此舉，令軸向氣道具有多 階的粗細截面，本實施例係使軸向氣道(25)具有三段連績性的 截面變化。而在主體(20)周面，則形成多圈的徑向通孔，如標 號A至F所示，沿著主體的縱向前後排列，與軸向氣道連通。 本體(20)後端具有一膨脹室(65)連接於軸向氣道後端，同時， 本體後端設置該膨脹室(65)之處為一大獲部(26)，成為本體最 大外徑之處。 一消音構件(70)，為多孔隙的物質，於本實施例係由多數 個(例如6個)環狀消音綿(72)所構成。該等消音錦(72)係套設於 該本體外周，分別包覆上述的6圈徑向氣孔a至F。 此外，主體(20)内可另裝設消音元件，例如，裝設於轴向 氣道(25)之消音元件(74)，或裝設於膨脹室(65)内之消音元件 (76)。消音元件(74)及(76)為實施上之選擇，並非必要。 請參閱第六圖’該消音裝置(10)係裝設於一氣動工具 (80)(圖中僅顯示氣動工具之本體)之排氣通道(82)中。消音襄置 (10)與排氣通道(82)之壁面間係具有間隙(84)。高壓氣體流進氣 動工具並驅動轉子後，流向排氣通道(72)，經該消音裝置(1〇) 消音處理後，復排出氣動工具。 請參閱第七圖，說明本發明之作動方式。當廢氣流進氣動 工具之排氣通道(72)時’部分氣流係直接自消音裝置(⑴)前 流入軸向氣道(25)，以產生軸向流動。另外，由於消音裝置^ 排氣通道(82)間具有間隙，故部分氣流則流向消音裝置⑽外 周(以下稱為外侧氣流），並未直接自消音裝置前端流入消音裝 置。 9 201008722 當軸向氣流(90)於轴向氣道(25)内流動時，會依序流經該 二前節及後節而排出。 第一個前節(30a)之寬、窄通氣截面(35)(36)係為軸向氣道 (25)之第一階段的截面變化，令氣體之流通量產生變化，藉以 改變流速並使流體壓力產生變化，·同樣的，第二個前節的寬、 窄通氣截面以及該後節的寬、窄通氣截面(55)(56)則分別形成 第二與第三階段的截面變化，使氣道(25)具有多階段的粗細截 面設計，氣體流經該等粗細截面後，產生多次的膨脹及收縮， 有效降低流速。 在氣道(25)内的軸向氣流(90)並非一成不變地只在氣道内 流動。蓋，因截面的變化’於窄的通氣截面(36)及(56)之前、 後產生壓力差’當氣流在到達窄的通氣截面(36)或(56)前，因 截面縮小’使得該截面(36)或(56)前方的流體壓力提高，因此， 某些氣流’如標號(91)所示者，形成徑向氣流，自徑向通孔(34) 或(54)流出本體(2〇)，與外侧氣流(92)合流。另一方面，在窄的 通氣截面(36)或(56)的後方恢復成寬的通氣截面(35)或(55)，其 截面積增加’使得氣壓降低，產生吸引作用，則某些外侧氣流 (92)即會成為徑向氣流(93)自徑向通孔(34)或(54)流回軸向氣 道(25) ’成為轴向氣流。 ^可知，本發明之主要設計不只使廢氣轴向流動，更使廢氣 ，消音裝置之徑向流動。藉由徑向氣流之流通性，氣體由軸向 亂，成為外侧氣流，或由外側氣流轉為軸向氣流，係端視氣體 ^瞬時壓力及流動縣崎機纽。#㈣氣流減道(25)内 流出，體時’因流向不$，將會抵消外侧氣流之流速，同樣的， 外侧氣流流人㈣氣鱗，亦將域轴向氣流之流速。另，徑 ，氣流於流經徑向通孔(34)(54)時，將穿過該等消音綿⑽，使 乳流平均分佈’並減域體軸的聲響。 201008722 * 氣體流至主體(20)後端後，將全部流入該膨脹室(65)，藉 由容積增大使得氣流流速及氣壓再度降低，順利排出。 本發明係使氣流產生相互消抵的主動機制來達成消音作 用，且氣流於消音裝置内、外流通順暢，不會有反壓產生。 復請參閱第八、九圖，係本發明另一較佳實施例之消音裝 置(100)，同樣包含有：一本體(11〇)及一消音構件(12〇)。其中， 該本體(110)之結構與第一實施例相同，容不贅述。 本實施例之消音構件(120)係為一片狀的消音綿，其二侧 φ 並設有一連接構件(122)，為一黏扣帶，以便可黏扣或拆解。 當該消音綿之二侧黏扣時，係形成一長筒形的消音綿。 該消音構件(120)係罩覆於本體(ι10)外周，完全包覆住本 體周面的径向通孔(112)。 經由上述說明可知，本發明之獨特設計具有雙重消音功 旎，氣體產生不同流向並動態地消抵，達到主動的減速消音作 用，同時，消音裝置内部亦提供多階段的不同粗細截面，藉由 多次反覆的膨脹及收縮，抑制氣體的流速及噪音。本發明 音效果優於習知設計。 h 〇 再者，本體為模組化的結構設計，方便組裝，更可視氣動 工具之大小，將消音裝置組接成不同的長度，例如，以一個 節與-侧I：節組成消音裝置之本體；亦或，由三個前節及 後節組成本體。 上揭諸實施例僅係用以說明本發明而非限制。The eighth figure is a perspective view of a preferred embodiment. The ninth figure is the most dissected perspective view of the eight diagrams.立立奘;2第二二图' shows a muffling her, n-domain (which is a hollow elongate body with - axial gas) provided by a preferred embodiment of the present invention _ four diagrams, and a plurality of radial through holes are provided in the circumferential surface to communicate with the air passage. More specifically: Referring to the first to fourth figures, the main body (20) is composed of at least one front section (30) and one rear = (50) Phase I is sleeved to form a modular structure. The second section and the second section are used. The front section (30) is a hollow cylindrical body with an axial passage (32). , as shown in the fourth and fifth figures; a plurality of radial through holes (34) are provided on the peripheral surface of the front section and communicate with the passage (32). See the fifth figure, the passage (34) is provided with a ventilation section of different inner diameters. 'The section (35) is the aeration section with a larger inner diameter, and the section (10) is a section of the aeration with a smaller inner diameter. Therefore, the channel (32) has a wide and narrow section. The cross section may be circular as shown, or may be geometric shapes of other shapes, such as triangles, pentagons, etc. In the axial direction of the front section, the present embodiment makes the front section (3) The radial through hole (34) of the 〇) is arranged in the manner of the front and the rear two turns; the narrow venting section (36) is located between the two vent holes. In addition, the present embodiment makes the adjacent two radial directions The through holes (34) are separated by ribs (341) of thin 7 201008722. The area of the through holes can be as large as possible to increase the flow of gas. A front sleeve is provided at the front end of the front section (30). 40); and a rear sleeve portion (45) is provided at the rear end so that the two front portions or the front portion and the rear portion can be axially connected. The front socket portion (40) is a ring and the inner peripheral wall is provided with a circle. a retaining ring (42); the rear sleeve portion (45) is formed by a plurality of elastic ribs (46) extending rearward from the rear end of the front section (30) in a ring shape and appropriately spaced; the free ends of the ribs are juxtaposed 1. The hook (48). The rear section (50) is also a hollow cylindrical body having an axial passage (52)' and a plurality of radial through holes (54) disposed on the rear side of the rear section. , the passage (52) is connected, and is arranged on the circumference of the rear section in a manner of two turns in front and rear. Similarly, as shown in the fifth figure, the passage (54) is provided with a ventilation section (55) having a larger inner diameter. And aerated section with smaller inner diameter (5 6), having a wide and narrow cross section in the channel (52). The narrower ventilation section (56) is located between the two through holes (54). The cross section of each ventilation section may be circular Or other geometric shapes; the radial through hole (54) also has a large hole product 'to provide high gas flow. The front end (50) is provided with a front socket (60) at the front end, and the structure is sleeved before the front section The portion (40) is the same as a ring, and the inner peripheral surface is provided with a buckle (62), as shown in the fifth figure; further, the rear end of the rear portion (50) is further provided with an expansion chamber (65) having a radial width greater than The width of the passage (54), the outer diameter of the rear section at the expansion chamber is greater than the outer diameter of the rear section. When combined, as shown in the third to fifth figures, the two front sections are nested with each other, and the first front section (30a) is sleeved with the front sleeve portion (45) and the second front section (3〇b). The portion (40) is sleeved, and the hook (48) of the rib (46) of the rear sleeve portion is elastically buckled to the buckle (42) of the front socket portion to position the two front portion elastic buckles. The rear section (5〇) is sleeved with the front socket portion (60) and the second front section (3〇b) after the socket portion (45), and the elastic rib (46) of the front section (30b) is fastened. Fasten the buckle (62) of the socket before the rear section (5〇) to position the two buckles. 8 201008722 The front and rear sections are combined to form the main body (20) of the muffler. These channels (34) and (54) form the axial air passage (25) of the main body; in the axial airway, the three are narrower. The venting sections (36) and (56) are arranged at intervals. As shown in the fifth figure, a wide and narrow venting section is formed in the axial air passage, and the axial air passage has a multi-step thickness section. The embodiment provides for a three-stage cross-sectional variation of the axial air passage (25). On the peripheral surface of the main body (20), a plurality of radial through holes are formed, as indicated by the marks A to F, which are arranged in the longitudinal direction of the main body and communicate with the axial air passage. The rear end of the body (20) has an expansion chamber (65) connected to the axial air passage rear end, and at the same time, the expansion chamber (65) is disposed at the rear end of the body as a large portion (26), which becomes the maximum outer diameter of the body. At the office. A sound absorbing member (70), which is a porous material, is composed of a plurality of (e.g., six) annular sound absorbing cottons (72) in this embodiment. The sound-absorbing brocades (72) are sleeved on the outer circumference of the body, and respectively cover the above-mentioned six radial holes a to F. Further, a sound absorbing member may be additionally provided in the main body (20), for example, a sound absorbing member (74) installed in the axial air passage (25) or a sound absorbing member (76) installed in the expansion chamber (65). The muffling elements (74) and (76) are not necessary for implementation choices. Referring to the sixth figure, the muffler (10) is mounted in an exhaust passage (82) of a pneumatic tool (80) (only the body of the pneumatic tool is shown). There is a gap (84) between the muffler device (10) and the wall surface of the exhaust passage (82). After the high-pressure gas flows into the tool and drives the rotor, it flows to the exhaust passage (72), and after the muffling device (1〇) is silenced, the pneumatic tool is re-discharged. Please refer to the seventh figure for explaining the mode of operation of the present invention. When the exhaust gas flows into the exhaust passage (72) of the tool, the partial airflow flows directly into the axial air passage (25) from the front of the muffler ((1)) to generate axial flow. Further, since the muffler device has a gap between the exhaust passages (82), part of the airflow flows to the outer periphery of the muffler device (10) (hereinafter referred to as the outer airflow), and does not directly flow into the muffler from the front end of the muffler device. 9 201008722 When the axial airflow (90) flows in the axial air passage (25), it will flow through the two front and rear sections in sequence. The wide, narrow aerated section (35) (36) of the first anterior segment (30a) is the cross-sectional change of the first phase of the axial airway (25), which changes the flow of the gas, thereby changing the flow rate and allowing the fluid pressure The change is made. Similarly, the wide, narrow aerated section of the second anterior segment and the wide and narrow aerated section (55) (56) of the posterior segment form the second and third stages of cross-sectional changes, respectively, to make the airway (25 The multi-stage thick and thin section design, after the gas flows through the thick and thin sections, generates multiple expansion and contraction, effectively reducing the flow rate. The axial flow (90) in the airway (25) does not flow in the airway only invariably. The cover, due to the change in the section, produces a pressure difference before and after the narrow aeration sections (36) and (56). When the airflow reaches the narrow aeration section (36) or (56), the section is shortened by the cross section. The fluid pressure in front of (36) or (56) is increased, so that some of the airflows, as indicated by reference numeral (91), form a radial airflow that flows out of the body from the radial through holes (34) or (54) (2〇 ), merges with the outside airflow (92). On the other hand, returning to the wide aerated section (35) or (55) behind the narrow aerated section (36) or (56), the cross-sectional area is increased 'so that the air pressure is lowered, causing attraction, and some of the outside airflow (92) will become a radial flow (93) from the radial through hole (34) or (54) back to the axial air passage (25) 'become an axial flow. It can be seen that the main design of the present invention not only causes the exhaust gas to flow axially, but also causes the radial flow of the exhaust gas and the muffler. By the flow of the radial airflow, the gas is chaotic from the axial direction, becoming the outer airflow, or from the outer airflow to the axial airflow, depending on the gas, the instantaneous pressure and the flow of the county. #(四) The airflow reduction (25) flows out. When the body is in the flow direction, the flow velocity of the outer airflow will be offset by the flow direction. Similarly, the outer airflow will flow (4) the gas scale, and the flow velocity of the axial airflow will also be used. In addition, the diameter, flow through the radial through holes (34) (54) will pass through the muffs (10), causing the milk flow to evenly distribute 'and reduce the sound of the body axis. 201008722 * After the gas flows to the rear end of the main body (20), it will flow into the expansion chamber (65). By increasing the volume, the flow velocity and air pressure will be reduced again and discharged smoothly. The present invention provides an active mechanism for the airflow to cancel each other to achieve a muffling effect, and the airflow flows smoothly inside and outside the muffler device without back pressure generation. Referring to Figures 8 and 9, a sound absorbing device (100) according to another preferred embodiment of the present invention also includes a body (11 〇) and a sound absorbing member (12 〇). The structure of the body (110) is the same as that of the first embodiment, and details are not described herein. The sound absorbing member (120) of the present embodiment is a one-piece sound absorbing cotton, and the two sides φ are provided with a connecting member (122), which is a fastening tape so as to be detachable or disassembled. When the two sides of the muffler are glued, a long cylindrical silencer is formed. The sound absorbing member (120) is covered on the outer periphery of the main body (1), and completely covers the radial through hole (112) of the peripheral surface of the body. It can be seen from the above description that the unique design of the present invention has a double muffling function, the gas generates different flow directions and dynamically cancels, and achieves active deceleration and muffling. At the same time, the muffler device also provides multiple stages of different thickness sections, The repeated expansion and contraction suppresses the flow rate and noise of the gas. The sound effect of the present invention is superior to conventional designs. h 〇 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Or, the body consists of three front and back sections. The embodiments are merely illustrative of the invention and are not intended to be limiting.
>綜上所述，本發明為同類物品首創之結構，並能有效消減 氟動工具之排音，具進步性功效之增進，誠合於發明 要件，爰依法提出申請。 J 11 201008722 【圖式簡單說明】 第係本發明-較佳實施例之後視立體圖。 第二圖係第一圖之分解立體圖。 f三圖係本發明—較佳實施例之主體之後視立體 第四圖係本發明-錄實_之立體之前視立體 第五圖係第一圖之縱向剖面圖。 圖。 圖。 f六圖顯示本發明裝設於—氣動工具之剖面示意圖。 第七圖顯示氣流流經本發明之狀態。 第八圖係本發明另一較佳實施例之立體圖。 第九圖係第八圖之大部分解立體圖。 【主要元件符號說明】 消音裝置(ιοχιοο) 主體(20)(110) 軸向氣道(25) 大徑部(26) 多圈徑向通孔(A)至(E) 前節(30) 通道(32) 徑向通孔(34)(112) 通氣截面(35)(36) 前套接部(40)(60) 扣環(42)(62) 後套接部(45) 凸肋(46) 卡鉤(48) 後節(50) 通道(52) 徑向通孔(54) 通氣截面(55)(56) 膨脹室(56) 消音構件(70)(120) 消音綿(72) 消音元件(74)(7的 連接構件(122) 轴向氣流(90) 外侧氣流(92) 徑向氣流(91)(9¾ 12> In summary, the present invention is the first structure of the same kind of articles, and can effectively reduce the sound of the fluorine moving tool, and has the progressive effect enhancement, and is in line with the invention requirements, and submits an application according to law. J 11 201008722 [Simplified illustration of the drawings] The present invention is a rear perspective view of the preferred embodiment. The second drawing is an exploded perspective view of the first figure. f. Fig. 3 is a front view of a preferred embodiment of the present invention. The fourth embodiment is a perspective view of the first embodiment of the present invention. Figure. Figure. Figure 6 shows a schematic cross-sectional view of the present invention mounted on a pneumatic tool. The seventh figure shows the state in which the airflow flows through the present invention. Figure 8 is a perspective view of another preferred embodiment of the present invention. The ninth diagram is a large perspective view of the eighth diagram. [Main component symbol description] Silencer (ιοχιοο) Main body (20) (110) Axial air passage (25) Large diameter section (26) Multi-turn radial through hole (A) to (E) Front section (30) Channel (32 ) Radial Through Hole (34) (112) Ventilation Section (35) (36) Front Socket (40) (60) Retaining Ring (42) (62) Rear Socket (45) Rib (46) Card Hook (48) Rear section (50) Channel (52) Radial through hole (54) Ventilation section (55) (56) Expansion chamber (56) Silencer (70) (120) Silencer (72) Silencer (74) ) (7 connecting member (122) axial airflow (90) outside airflow (92) radial airflow (91) (93⁄4 12