TWI233857B

TWI233857B - Oil filling structure of pneumatic tool

Info

Publication number: TWI233857B
Application number: TW92105996A
Authority: TW
Inventors: Freddy Lin
Original assignee: Gison Machinery Co Ltd
Priority date: 2003-03-19
Filing date: 2003-03-19
Publication date: 2005-06-11
Also published as: TW200418607A

Abstract

Oil filling structure of pneumatic tool, including an airflow way formed in the main body for conducting high pressure air into a pneumatic cylinder disposed in the pneumatic tool. An air intake switch is connected with the airflow way for controlling opening/closing of the airflow way. An oil filling hole is disposed in air intake switch. When the switch is positioned in a close position, a lubricant can be filled into the oil filling hole to flow into the airflow way. The high pressure air can entrain the lubricant in the airflow way into the cylinder to lubricate and clean the cylinder.

Description

1233857 、發明說明（1) 【發明所屬之技術領域】本發明係與氣動工具有關，詳而言之係指一種氣動工具之注油結構，便於將潤滑油注入氣動工具之氣缸内者。【先前技術】按，氣動工具係以高壓氣體為動力來源，驅動其氣缸内之轉子轉動，以產生作動。為提高氣動工具之使用壽命、對於氣缸及轉子均須加以潤滑、清潔。習知之潤滑方式係將潤滑油注入連接在氣動工具之導氣管，高壓氣體進入 =氣管時，即將導氣管内之潤滑油沿著氣動工具内之氣體流路送入氣缸，之後再隨著高壓氣體排出氣動工具。藉此 ’可潤滑氣缸内部，並產生將氣缸内之污物帶離氣缸潔作用。 Θ 、習知添加潤滑油之方式，須將導氣管之接頭拆下便注入潤滑油，作業上並不方便。再者，導氣管通’ ，材質，浪1滑油容易沾附在導氣管内壁，|法全部輪送 :缸：’ *成潤滑油之耗費。且潤滑油沾黏於管内時，久而久之，將使導氣管容易阻塞。 &内壁【發明内容】本發明旨於解決上揭諸缺失，1主|曰沾七種氣動工具之注油結構其係自氣iIa 、在於提供一便於添加潤滑油。 &動工具之開關處注油，本發明之另一目的在於提供一種【ίϊΐΐΓ，…管不會㈣潤滑油注油結構 12338571233857, Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to pneumatic tools, and in detail refers to an oil injection structure of a pneumatic tool, which is convenient for injecting lubricating oil into the cylinder of a pneumatic tool. [Previous technology] Press, the pneumatic tool uses high pressure gas as the source of power to drive the rotor in its cylinder to rotate to produce action. In order to improve the service life of pneumatic tools, the cylinder and rotor must be lubricated and cleaned. The conventional lubrication method is to inject lubricating oil into the air pipe connected to the pneumatic tool. When high pressure gas enters into the air pipe, the lubricating oil in the air pipe is sent into the cylinder along the gas flow path in the pneumatic tool, and then the high pressure gas is followed. Drain the air tool. This ′ can lubricate the inside of the cylinder and bring the dirt inside the cylinder away from the cylinder. Θ. The method of adding lubricating oil is known. It is necessary to remove the joint of the air pipe and inject the lubricating oil, which is not convenient in operation. In addition, the air duct is made of ′, the material, and the oil of Wave 1 is easy to stick to the inner wall of the air duct. All methods are sent by rotation: Cylinder: ’* Consumption of lubricating oil. And when the lubricant sticks to the tube, over time, the air duct will be easily blocked. & Inner wall [Summary of the invention] The present invention aims to solve the above-mentioned problems. The main structure of the oil injection structure of seven types of pneumatic tools is self-air iIa, which is to provide a convenient way to add lubricating oil. & Oil injection at the switch of a moving tool. Another object of the present invention is to provide a pipe oil injection structure without lubricating oil. 1233857

為使貴以及所達成之配合圖式詳細審查委功效，說明於第一圖係本發明第二圖係第三圖係第四圖係第五圖係第六圖係第七圖係第八圖概第九圖係第十圖係員能進-步瞭解本發明之目的、特徵以下兹舉本發明之二較佳實施例，並后，其中，圖式之安排為：一較佳實施例之立體圖。第一圖之後半部之立體圖。之3 - 3剖線之剖面圖。第二圖第三圖之4-4剖線之剖面圖第二圖之5 _ 5剖線之剖面圖第一圖第一圖同於第本發明第九圖之前半部之立體圖。之縱向剖面圖。四圖，顯示閥體位於關閉位置另一較佳實施例之立體圖。之縱向剖面圖。In order to make detailed and effective review of the effectiveness of the cooperation scheme, the first diagram is the second diagram of the present invention, the third diagram is the fourth diagram, the fifth diagram is the sixth diagram, the seventh diagram, and the eighth diagram. The ninth diagram is the tenth diagram. The members can further understand the purpose and features of the present invention. The following describes the second preferred embodiment of the present invention, and the arrangement of the diagrams is: A perspective view of a preferred embodiment. . A perspective view of the second half of the first figure. Section 3-3 section line. The second figure The third figure is a sectional view taken along the line 4-4 of the second figure The fifth figure is the sectional view taken along the line 5_5 The first figure The first figure is the same as the perspective view of the first half of the ninth figure of the present invention. A longitudinal section view. Four figures, showing a perspective view of another preferred embodiment of the valve body in the closed position. A longitudinal section view.

第十一圖係第十圖之11 -11剖線之剖面圖。第十二圖概同於第十圖，顯示其作動狀態。The eleventh figure is a cross-sectional view taken along line 11-11 of the tenth figure. The twelfth figure is similar to the tenth figure, showing its operating state.

首先請參閱第一圖，係本發明所提供之氣動工具（10) 之第一較佳實施例，為一種氣動研磨機。該研磨機（1 0 )具有：一本體（20)，係由一前殼（50)與一後殼（40)所組接而成，如第二、六圖所示，於該後殼（40)上設有一進氣開關 (60)，以控制氣體之流量。該本體（20)内具有一排氣空間（22)，係形成於前、後殼（50)(40)内部之中空部位。一容室（24)，如五圖，自後殼（40)頂面往内凹設，以供裝設該進氣開關（6 0 )。First, please refer to the first figure, which is a first preferred embodiment of the pneumatic tool (10) provided by the present invention, which is a pneumatic grinder. The grinder (10) has: a body (20), which is composed of a front shell (50) and a rear shell (40), as shown in the second and sixth figures, in the rear shell ( 40) An air inlet switch (60) is provided to control the flow rate of the gas. The body (20) has an exhaust space (22) formed in a hollow portion inside the front and rear shells (50) (40). A container chamber (24), as shown in the fifth figure, is recessed inward from the top surface of the rear case (40) for installing the air inlet switch (60).

第6頁 1233857 五、發明說明（3) 一進氣管（26)，如第三圖所示，連接於該後殼頂面所設之接頭（2 7 )中之進氣孔（2 8 )。一氣體流道（A)，設於本體（20)内，以供氣體流通。該流道（A)包括：一孔（30)，連通該進氣孔（28); —通道 (32)，如第三、四圖，係橫向貫穿該容室（24)，該通道 (32)於該容室（24)前緣並具一出口（34)，該出口（34)係連通該後殼正面所設之一凹室（3 6 )。該前殼（50)内係裝設一氣缸（55)，如第六圖，於氣缸 (55)内設有一轉子（56)，如第七圖。另，氣缸（55)後端設有一氣體入口（57)，如第六圖，而周面則設有預定數目之氣體出口（58)，該氣體出口（58)係連通前彀（3〇)内之排氣空間（22)。該進氣開關（60)，請參閱第五圖，包括一閥體（62)以及連接於該閥體頂端之一操控件，為一旋鈕（63)。一注油孔（65)，包括：一貫穿旋紐（63)頂、底面之穿孔（66)以及一自閥體（62)頂端往内凹設之内孔（67 )，當旋鈕連接於閥體時，該穿孔（6 6 )及内孔（6 7)係轴向連接而形成該注油孔 (65)。一導孔（68)，設於閥體（62)内，連通閥體周面及注油孔（65)(内孔（67))。另，閥體（62)設有一徑向之通孔 (64)。該導孔（68)係呈傾斜狀，外端較低，概與該通孔 (64)位於相同高度。進氣開關（60)係以該閥體（62)裝入於容室（24)，並以一止漏環（69)氣密於容室周面，該通孔（64)係於 u)之通道（32)，而得與流道導通。該旋紐（63/則；卜露;fPage 61233857 V. Description of the invention (3) An air inlet pipe (26) is connected to the air inlet hole (2 8) in the joint (2 7) provided on the top surface of the rear casing as shown in the third figure. . A gas flow channel (A) is provided in the body (20) for gas circulation. The flow channel (A) includes: a hole (30), which communicates with the air inlet hole (28);-a channel (32), as shown in the third and fourth figures, penetrates the chamber (24) laterally, and the channel (32) An exit (34) is provided at the front edge of the receiving chamber (24), and the exit (34) is connected to a recess (3 6) provided on the front face of the rear shell. A cylinder (55) is installed in the front casing (50), as shown in the sixth figure, and a rotor (56) is provided in the cylinder (55), as shown in the seventh figure. In addition, a gas inlet (57) is provided at the rear end of the cylinder (55), as shown in the sixth figure, and a predetermined number of gas outlets (58) are provided on the peripheral surface, and the gas outlet (58) is connected to the front cymbal (30). Exhaust space inside (22). The air intake switch (60), referring to the fifth figure, includes a valve body (62) and a control member connected to the top of the valve body, which is a knob (63). An oil injection hole (65) includes: a perforation (66) penetrating the top and bottom of the knob (63) and an inner hole (67) recessed inward from the top of the valve body (62), when the knob is connected to the valve body At this time, the perforation (6 6) and the inner hole (6 7) are axially connected to form the oil injection hole (65). A guide hole (68) is provided in the valve body (62), and communicates with the valve body peripheral surface and the oil injection hole (65) (inner hole (67)). In addition, the valve body (62) is provided with a radial through hole (64). The guide hole (68) is inclined and has a lower outer end, and is approximately at the same height as the through hole (64). The air inlet switch (60) is installed in the container chamber (24) with the valve body (62), and is airtightly sealed to the peripheral surface of the container chamber with a leakage ring (69), and the through hole (64) is connected to the u) Channel (32), and it must be in communication with the flow channel. The knob (63 / three; Bu Lu; f

第7頁 1233857 五、發明說明（4) 本體（2 0 )外，以供人手操作，藉以帶動閥門轉動。另，本實施例中，於容室（24)下段係固設一鋼質筒體 (61)，該筒體（61)同樣設有一通孔（611)連通該通道（32) 。筒體之作用係用以提高閥體之轉動性。將前殼（50)及後殼（40)組合後，如第七圖，氣缸（55) 後端係密合於後殼之凹室（3 6 )，使流道得將高壓氣體傳導至氣缸。而前、後殼内之排氣空間（2 2 )則結合成一體。欲潤滑研磨機（1 0 )時，首先將氣動開關之閥體（6 2)旋轉於第八圖所示之關閉位置，此時，導孔（68)底端係對正流道（A)之出口（34)，接著將潤滑油自該開關（6〇)處注入該注油孔（6 5 )，如第五圖，潤滑油即會經由導孔（6 8 )流至该出口（ 3 4)及該凹室（3 6 )内，亦即，潤滑油即流入流道 (A)中。注入潤滑油後，將閥體（62)轉動至第四圖之開啟位置時，使通孔（64)與通道（32)連通，流道（A)即呈通路狀態，而注油孔、導孔（6 8)即不再與流道相通。高壓氣體即可自進氣孔（2 8 )、孔（3 0 )而流入通道（3 2 )，經過閥體之通孔 (64j，復自該出口（34)進入凹室（36)，再自氣缸（55)後端之氣體入口（57)流入氣缸内，帶動轉子（56)轉動，使研磨機產生作動。之後，高壓氣體再自氣缸之氣體出口（58)流進排氣空間（22)，復如第七圖所示，自設於接頭（27)處之若干排氣孔（2 9)排出。高壓氣體流動時，係將氣體流道（A)内（即凹室（36)與出口（34))之潤滑油一起帶入氣缸内，以潤滑與清潔氣缸、Page 7 1233857 V. Description of the invention (4) The main body (2 0) is provided for manual operation to drive the valve to rotate. In addition, in this embodiment, a steel cylinder (61) is fixed at the lower section of the container (24), and the cylinder (61) is also provided with a through hole (611) to communicate with the channel (32). The function of the cylinder is to improve the rotation of the valve body. After combining the front shell (50) and the rear shell (40), as shown in the seventh figure, the rear end of the cylinder (55) is tightly sealed in the recess (36) of the rear shell, so that the high-pressure gas can be transmitted to the cylinder by the flow channel. . The exhaust spaces (2 2) in the front and rear shells are integrated into one. To lubricate the grinder (1 0), first rotate the valve body (62) of the pneumatic switch to the closed position shown in the eighth figure. At this time, the bottom end of the guide hole (68) is aligned with the flow channel (A). The outlet (34), and then lubricating oil is injected from the switch (60) into the oil injection hole (6 5), as shown in the fifth figure, the lubricating oil will flow to the outlet (3 4) through the guide hole (6 8). ) And the recess (3 6), that is, the lubricating oil flows into the flow passage (A). After the lubricant is injected, when the valve body (62) is rotated to the open position in the fourth figure, the through hole (64) is communicated with the channel (32), and the flow channel (A) is in a state of passage, and the oil injection hole and the guide hole (6 8) That is no longer connected with the flow channel. The high-pressure gas can flow into the channel (3 2) from the air inlet hole (2 8) and the hole (30), pass through the through hole (64j) of the valve body, and enter the recess (36) from the outlet (34). The gas inlet (57) from the rear end of the cylinder (55) flows into the cylinder, which drives the rotor (56) to rotate, causing the grinder to operate. After that, the high-pressure gas flows from the gas outlet (58) of the cylinder into the exhaust space (22). ), As shown in the seventh figure, is discharged from several exhaust holes (2 9) provided at the joint (27). When high-pressure gas flows, the gas flow channel (A) (ie, the cavity (36)) is discharged. Bring it into the cylinder with the lubricant at the outlet (34)) to lubricate and clean the cylinder,

1233857 五、發明說明（5) 内部，之後，潤滑油再隨著高壓氣體排出研磨機。又，藉由文氏管原理，高壓氣體流動時，存留於凹室 (3 6 )底部之潤滑油亦會被吸入流道内，隨著高壓氣體流入氣缸。復請參閱第九、十圖，係本發明第二較佳實施例所揭之氣動工具，亦為一氣動研磨機（70)，同樣包含有：一本體（80)，亦由一如、後殼（81)(82)所組成，本體内部具有一排氣空間（8 2 )。一容室（84)，設於後殼（81)處，並貫穿後殼頂、底端。一進氣孔（88)，設於一接頭（87)。一氣體流道（B)，設於本體内，包括：一孔（90)，連通該進氣孔（88)及該容室（84)後緣；一第二孔（92)，後端係連通容室（84)前緣，而前端則連通至一設於後殼前端之凹室（94);該第二孔（92)並與第一孔（90)具一位差。本體之前殼（82)内係裝設一氣缸（105)，氣缸内設一轉子（106); —調速機構（110)，連接於該轉子後端，調速機構非本發明之主要標的，容不贅述。該流道（B)包括：一设於调速機構之轉轴（11 2)内之轴孔（9 6)以及若干徑孔（9 7 )，該軸孔（9 6 )後端係與該凹室 (94)連通；該等徑孔（97)復經由設於一調速件（Π4)上之小孔（9 8 )而連通至一空間（9 9)，該空間（9 9 )係與氣缸 (105)後端之氣體入口（107)連通，如第十一圖。又，該氣缸周面設有若干氣體出口（108)連通至該排氣空間（82)。1233857 V. Description of the invention (5) Inside, after that, the lubricating oil is discharged out of the grinder with high pressure gas. In addition, according to the Venturi principle, when high pressure gas flows, the lubricating oil remaining in the bottom of the recess (36) will also be sucked into the flow channel, and the high pressure gas will flow into the cylinder. Please refer to the ninth and tenth drawings again, which are the pneumatic tools disclosed in the second preferred embodiment of the present invention, which is also a pneumatic grinder (70), which also includes: a body (80), which is also The casing (81) (82) is composed of an exhaust space (8 2) inside the body. A container (84) is provided at the rear shell (81) and penetrates the top and bottom ends of the rear shell. An air inlet (88) is provided in a joint (87). A gas flow channel (B) is provided in the body, and includes: a hole (90), which communicates with the air inlet hole (88) and the rear edge of the containing chamber (84); a second hole (92), the rear end of which The front edge of the receiving chamber (84) is connected, and the front end is connected to a recess (94) provided at the front end of the rear shell; the second hole (92) is one bit different from the first hole (90). A cylinder (105) is installed in the front shell (82) of the body, and a rotor (106) is installed in the cylinder; a speed regulating mechanism (110) is connected to the rear end of the rotor, and the speed regulating mechanism is not the main target of the present invention, Let's not go into details. The flow channel (B) includes: a shaft hole (9 6) provided in the rotating shaft (11 2) of the speed regulating mechanism and a plurality of diameter holes (9 7). The rear end of the shaft hole (9 6) is connected to the shaft hole. The alcove (94) is connected; the diameter holes (97) are connected to a space (9 9) through a small hole (9 8) provided on a speed governor (Π4), and the space (9 9) is It is in communication with the gas inlet (107) at the rear end of the cylinder (105), as shown in the eleventh figure. In addition, a plurality of gas outlets (108) are provided on the peripheral surface of the cylinder to communicate with the exhaust space (82).

1233857 五、發明說明（6) 一進氣開關（120)，請參閱第十圖，包括一閥體（122) 以及一用以操控閥體之操控件，為一扳機（1 2 3 )。一注油孔（125)，自閥體（122)頂端往内穿設於閥體中；一導孔 (12 6)，自閥體周面橫向穿設於閥體，使注油孔（1 2 5 )得與得與容室（84)連通。一閥門（127)，設於閥體中段位置，並位於導孔（126)下方。該閥體（122)係設於該容室（84)中而可沿容室上下位移，閥體頂端以一止漏環（1 2 8 )密合於容室周面，以保持氣密；閥體底端係自一止漏構件（1 2 9) 牙伸於谷至（8 4)外，該止漏構件（1 2 9 )係保持容室底端之氣密性。該板機（1 2 3 )係植設於後殼（8 2 )底面，而可旋擺；扳機後端係樞接於該閥體底端。一扭力彈簧（1 3 0 )，設於該扳機及本體之間，使該扳機於未受力外作用時，保持將該閥體往上位移關閉位置，如第十圖。當閥體位於關閉位置時，該導孔（126)恰連通流道（B) 之第二孔（92);而閥門（127)係密合於容室内之肩部 (841 )，阻斷流道（b)與容室（84)間之通路。本發明另包含：一小彈簧（132)，設於該容室内，彈性推頂於該閥門（127)，同樣使閥體於未受力外時向上位移，保持於關閉位置。欲潤滑研磨機（10)時，首先使進氣開關（120)處於第十圖之關閉位置，該接著將潤滑油注入該注油孔（125乂濁滑油即會經由導孔（126)、第二孔（92)而流入凹室（94) 中，故潤滑油即流入流道（B)内。1233857 V. Description of the invention (6) An air intake switch (120), please refer to the tenth figure, including a valve body (122) and a control member for controlling the valve body, which is a trigger (1 2 3). An oil injection hole (125) passes through the valve body from the top of the valve body (122) inward; a guide hole (126) passes through the valve body laterally from the valve body peripheral surface, so that the oil injection hole (1 2 5 ) Must be in communication with the chamber (84). A valve (127) is provided at the middle position of the valve body and is located below the guide hole (126). The valve body (122) is arranged in the container chamber (84) and can be moved up and down along the container chamber. The top end of the valve body is tightly sealed with a leak-proof ring (1 2 8) on the peripheral surface of the container chamber to maintain airtightness; The bottom end of the valve body is protruded from the valley stop (8 4) with a leak stop member (1 2 9), and the leak stop member (1 2 9) maintains the airtightness of the bottom end of the chamber. The trigger (1 2 3) is planted on the bottom surface of the rear shell (8 2) and can be swiveled; the rear end of the trigger is pivotally connected to the bottom end of the valve body. A torsion spring (130) is provided between the trigger and the main body, so that the valve body can be displaced upward and closed when the trigger is not exposed to external force, as shown in the tenth figure. When the valve body is in the closed position, the guide hole (126) just communicates with the second hole (92) of the flow channel (B); and the valve (127) is closely fitted to the shoulder (841) in the container to block the flow The path between the channel (b) and the chamber (84). The invention further comprises: a small spring (132), which is arranged in the container, and is elastically pushed against the valve (127), which also moves the valve body upward when it is not stressed, and maintains it in the closed position. To lubricate the grinder (10), first place the air intake switch (120) in the closed position of the tenth figure, and then inject the lubricating oil into the oil injection hole (125 乂 cloudy oil will pass through the guide hole (126), the first Two holes (92) flow into the recess (94), so the lubricating oil flows into the flow channel (B).

1233857 五、發明說明（7) 接著按壓進氣開關（120)之扳機（123)，連動閥體 (122)於開啟位置，如第十二圖，閥體之閥門（127)即離開該肩部（841)，使流道（B)與容室（84)導通，高壓氣體即自進氣孔（88)流入容室（84)内，自閥體（122)外周與容室 (84)内壁間之間隙往上流，復自第二孔（92)流入凹室 (94)，並帶著位於孔（92)内及凹室（94)内之潤滑油一起流入軸孔（96)，再經徑孔（97)、小孔（98)流至空間（99);接著如第十一圖所示，自該空間（99)經由氣體入口（107)而流入氣缸（105)内。高壓氣體係驅動轉子（106)轉動，而潤滑油則潤滑、清潔氣缸内部。之後高壓氣體及潤滑油再自氣體出口（108)流出氣缸，流入排氣空間（82)，復經由與排氣空間連通之若干排氣孔（89)排出研磨機。停止按壓扳機（123)，彈簧（130)之彈力可使扳機、閥體（122)回復第十圖之關閉位置，重行切斷流道（B)。又，一般狀態下，容室（84)頂端係以一封蓋（135)閉合，以免雜物進入。本發明係藉由巧妙之設計，改變氣動工具之潤滑結構，操作者只須自進氣開關之處將潤滑油注入即可，其注油便利，改良傳統須自進氣管注油之不便；而潤滑油不再自進氣管注入後，可改進進氣管容易阻塞之缺失。1233857 V. Description of the invention (7) Next, press the trigger (123) of the air intake switch (120) to link the valve body (122) to the open position, as shown in the twelfth figure, the valve (127) of the valve body leaves the shoulder. (841), the flow channel (B) is communicated with the chamber (84), and the high-pressure gas flows into the chamber (84) from the air inlet (88), from the outer periphery of the valve body (122) and the inner wall of the chamber (84) The gap flows upward, flows from the second hole (92) into the recess (94), and brings the lubricating oil located in the hole (92) and the recess (94) into the shaft hole (96), and then passes through The diameter hole (97) and the small hole (98) flow into the space (99); then, as shown in FIG. 11, the space (99) flows into the cylinder (105) through the gas inlet (107). The high-pressure gas system drives the rotor (106) to rotate, while the lubricant lubricates and cleans the inside of the cylinder. After that, the high-pressure gas and lubricating oil flow out of the cylinder from the gas outlet (108), flow into the exhaust space (82), and exit the grinder through a plurality of exhaust holes (89) communicating with the exhaust space. Stop pressing the trigger (123), the spring force of the spring (130) can return the trigger and valve body (122) to the closed position in the tenth figure, and cut off the flow channel (B) again. In addition, under normal conditions, the top end of the chamber (84) is closed with a cover (135) to prevent foreign matter from entering. The invention adopts a clever design to change the lubrication structure of pneumatic tools. The operator only needs to inject lubricating oil from the air intake switch, which facilitates oil injection and improves the inconvenience of traditional oil injection from the air intake pipe. After the oil is no longer injected from the air intake pipe, the lack of easy blocking of the air intake pipe can be improved.

1233857 圖式簡單說明第一圖係本發明一較佳實施例之立體圖。第二圖係第一圖之後半部之立體圖。第三圖係第二圖之3-3剖線之剖面圖。第四圖係第三圖之4-4剖線之剖面圖。第五圖係第二圖之5-5剖線之剖面圖。第六圖係第一圖之前半部之立體圖。第七圖係第一圖之縱向剖面圖。第八圖概同於第四圖，顯示閥體位於關閉位置。第九圖係本發明另一較佳實施例之立體圖。1233857 Brief description of the drawings The first drawing is a perspective view of a preferred embodiment of the present invention. The second figure is a perspective view of the latter half of the first figure. The third figure is a cross-sectional view taken along line 3-3 of the second figure. The fourth figure is a sectional view taken along line 4-4 of the third figure. The fifth figure is a cross-sectional view taken along line 5-5 of the second figure. The sixth figure is a perspective view of the first half of the first figure. The seventh figure is a longitudinal sectional view of the first figure. The eighth figure is similar to the fourth figure, showing the valve body in the closed position. The ninth figure is a perspective view of another preferred embodiment of the present invention.

第十圖係第九圖之縱向剖面圖。第十一圖係第十圖之11-11剖線之剖面圖。第十二圖概同於第十圖，顯示其作動狀態。The tenth figure is a longitudinal sectional view of the ninth figure. The eleventh figure is a cross-sectional view taken along line 11-11 of the tenth figure. The twelfth figure is similar to the tenth figure, showing its operating state.

第12頁 1233857 圖式簡單說明圖號簡單說明：研磨機（10)(70) 本體（20) 排氣空間（ 22 )( 32 ) 容室（24)(84) 氣體流道（A)(B) 進氣孔（ 28)(88) 孔（30)(90)(92)(98) 通道（32) 出口（34) 凹室（ 36 )( 94 ) 前殼（ 50 )( 82 ) 後殼（40)(81) 氣缸（ 55 )( 1 05 ) 轉子（ 56 )( 1 0 6 ) 氣體入口（ 57)( 1 07) 氣體出口（ 58 )( 1 08 ) 進氣開關（ 60 )( 1 20 ) 筒體（61) 通孔（6 11 ) 閥體（ 62 )( 1 22 ) 操控件（ 63 )( 1 23 ) 通孔（6 4) 注油孔（6 5 ) ( 1 2 5 ) 穿孔（6 6 ) 内孔（6 7) 導孔（ 68 )( 1 26 ) 軸孔（9 6 ) 徑孔（97) 空間（99) 閥門（1 2 7) 彈簧（ 1 30 )( 1 32 )Page 121233857 Simple illustration of drawing No. of illustration: Grinding machine (10) (70) Body (20) Exhaust space (22) (32) Container (24) (84) Gas flow channel (A) (B ) Air inlet (28) (88) Hole (30) (90) (92) (98) Channel (32) Exit (34) Alcove (36) (94) Front shell (50) (82) Rear shell ( 40) (81) Cylinder (55) (1 05) Rotor (56) (1 0 6) Gas inlet (57) (1 07) Gas outlet (58) (1 08) Inlet switch (60) (1 20) Body (61) Through hole (6 11) Valve body (62) (1 22) Control part (63) (1 23) Through hole (6 4) Oil filling hole (6 5) (1 2 5) Perforation (6 6 ) Inner hole (6 7) Guide hole (68) (1 26) Shaft hole (9 6) Diameter hole (97) Space (99) Valve (1 2 7) Spring (1 30) (1 32)

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Claims

1233857 VI. Scope of patent application1. An oil-filling structure for a pneumatic tool, which includes: a body; a container provided inside the body; a cylinder having a rotor inside; the cylinder is provided in the body; A flow channel is provided in the body for high-pressure gas to flow into the body, and the flow channel is connected to the chamber and the cylinder; the high-pressure gas must flow into the cylinder to drive the rotor to rotate and can be discharged from the cylinder; The switch has a valve body and a control member connected to the valve body. The valve system is air-tightly disposed in the container room and is displaceable. ^ The control member is located outside the container room for manual operation. When the control member drives the valve body, the valve body can be moved between a closed position and an open position to control the passage state of the flow channel; It is characterized by: additionally including: an oil injection hole, which is provided inside the valve body, The outer end of the oil injection hole is connected to the outside world for the injection of lubricating oil, and the inner end of the oil injection hole is penetrated to the peripheral surface of the valve body. When the valve body is switched to the closed position, the inner end of the t oil hole is connected to the flow. Daodao ; Should be switch when the valve body is turned to the open position of the gas flow path, the guide hole does not communicate with the system flow paths. 2. The oil injection structure described in item 1 of the scope of the patent application, further comprising: a guide hole provided in the valve body, and connecting the inner end of the oil injection hole and the peripheral surface of the valve body. 3 The / main / your ,,, " structure described in item 2 of the scope of the patent application, wherein: the valve system is rotationally displaced within the container; when the carcass is in the closed position, the outer end of the pilot hole is connected The flow channel; when the valve body is in the open position, the outside of the guide hole

14th tribute 1233857 6. Scope of patent application The end system leaves the flow channel. 4. The oil injection structure according to item 2 of the scope of the patent application, wherein: the valve system is displaced up and down in the valley chamber; when the valve body is in the closed position, the pilot hole is directly facing the flow channel; the valve body is in the open position At this time, the guide hole aligns the flow path with the upper and lower positions. "/

5. The oil-filling structure as described in item 1 of the scope of the patent application, wherein the container chamber is recessed inward from the top surface of the body; the flow channel is transversely passed through the container; the valve body is further provided with: a diameter To the through hole, the through hole corresponds to the flow channel; the control member is a knob connected to the top of the valve body, and when the knob is manipulated, the valve body is caused to rotate in the chamber; when the valve body is in the open position The through hole is in communication with the flow channel; the oil injection hole includes: an inner hole recessed inwardly from the end of the valve body; the inner end of the inner hole is penetrated to the peripheral surface of the valve body; a perforation, ' It penetrates the top and bottom surfaces of the knob, and the perforation is in axial communication with the inner hole. 6 · The oil injection structure described in item 5 of the scope of the patent application, the valve body further comprises: a guide hole provided in the valve body, communicating the inner end of the inner hole with the peripheral surface of the valve body. 7. The oil injection structure described in item 5 of the scope of patent application, further comprising: a cylinder fixedly installed in the container; a through hole penetrating the peripheral surface of the cylinder and communicating with the flow channel; the bottom end of the valve body Tethered in the cylinder. 8. The oil injection structure according to item 1 of the scope of the patent application, wherein: the flow channel passes through the container laterally, and two holes are formed on the peripheral surface of the container, and the two holes have high and low level differences; The first hole flows to the second hole; a reading door is provided on the valve body, and the valve system is displaced up and down in the container. When it is in the closed position, the valve closes the passage between the first hole and the container.

1233857 --II ----------------_ VI. Scope of patent application9. The oil injection structure described in item 8 of the scope of patent application, in which the peripheral surface of the chamber is close to A shoulder is provided at the first hole; the valve is closely fitted to the shoulder. I 0 · The oil injection structure as described in item 8 of the scope of the patent application, wherein: the valve body further includes a guide hole provided inside the carcass to communicate the inner end of the oil injection hole with the peripheral surface of the valve body; When the valve body is in the closed position, the guide hole is aligned with the second hole. II. The oil injection structure according to item 8 of the scope of the patent application, wherein: the top end of the chamber passes through the top surface of the body; the oil injection hole is recessed inward from the top of the valve body; one end of the valve body extends through The container; the control part is a trigger, which is pivoted on the body and can be triggered; the convex end of the carcass is pivotally connected to the trigger. 1 2 · The oil injection structure described in item 11 of the scope of the patent application, further comprising: a first elastic element provided between the trigger and the body, and elastically holding the trigger so that the trigger is not triggered At the same time, the valve body is linked to the closed position. 1 3. The oil injection structure as described in item 8 of the scope of the patent application, further comprising: a second elastic element, which is disposed in the container and is supported by the valve body in a top-down manner, so that the valve body is not subjected to external force. Stay in the closed position. 14. The oil injection structure described in item 11 of the scope of patent application, further comprising: a cover, which is detachably fitted on the top of the container. 1 5. The oil injection structure according to item 11 of the scope of patent application, wherein: the container chamber runs through the top and bottom ends of the body; the bottom end of the valve body penetrates the container chamber in an airtight manner; the trigger The pivot is arranged on the bottom surface of the body.

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