1323211 九、發明說明： 【發明所屬之技術頜威】 本發明涉及一種氣動擊釘裝置’特別是指一種於氣動 訂槍内部設置可向下移動而開閥擊針之氣缸的裝置技術。 【先前技術】1323211 IX. Description of the Invention: The present invention relates to a pneumatic nailing device ′, particularly to a device technology in which a cylinder that can be moved downward to open a valve pin is provided inside a pneumatic binding gun. [Prior Art]
傳統氣動擊釘裝置的搶體内’皆具有一主氣室，可自 槍尾持續導入高壓空氣集壓’以作為擊釘操作之動力來 源，且搶體内皆設有一可動或不動式的氣缸；氣缸内設有 一擊釘用的活塞，可將氣缸區分成一頂層氣缸室及一底層 氣紅室，且氣缸外壁與槍體之間形成一底層氣室，於活塞 下移擊釘時能集結頂層氣缸室導入的高壓空氣，同時槍體 上均設有一可被壓扣而驅動擊釘的扳機；在壓扣扳機時， 主氣室之高壓空氣可導入頂層氣缸室内驅動活塞下移擊 釘，另在釋放扳機時’高壓空氣可自頂層氣虹室中泡除， 使底層氣室之高壓空氣導入底層氣缸室内驅動活塞上移復 位。 在先前技術中配置有可動式氣缸者，可見於美國第 6648202號專利案，其揭示出在—可向下移動式的氣缸上設 一頭閥，且氣缸外壁形成一閥環，並於氣缸外壁盥搶體之 間的一底層氣室内設置—彈簧；特別是麵扣扳機時，主 氣室内高壓空氣能驅動閥環帶動氣缸下: 缸室内洩壓的上排氣通路’並開啟“頂層軋 間的通路，導引主氣室之高壓空氣經由J間了】層氣虹室之 驅動技下移擊釘，此時高壓空氣會導人底層氣室 6 1323211 内集壓；另於釋放扳機時，高壓空氣與彈簧a _ 環帶動氣缸上移復位，以關閉主氣室與頂同驅動閥 通路，並開啟頂層氣缸室内洩壓的上排氣^氕缸室之間的 氣室内的高壓空氣能導入底層氣缸室內，此時底層 位。 η驅⑹塞上移復 且知’在搶體内物體接觸高壓空氣的表 承受高壓空氣之作用力也越大；惟，上述頭積越大’則 雙尚壓空氣驅動氣紅上移及下移的表面積差異、《I上了 導致於未壓扣扳機時，氣缸受高壓空氣驅動上並不顯著， 的能量釋放效果並不理想，特別是當操作者不=關閉頭閥 落地面、碰撞堅硬物或敲擊其前端射嘴時，容易=搶體掉 鬆脫開閥而誤擊發釘件，亦即發生不需壓扣=機=致頭閥 釘件的危險狀況，已造成使用安全性欠佳的問題，會擊發 體内驅動氣缸上、下移動及活塞復位移動的③成=該= = = 的配置數量較多且複雜’因此需求較大的搶 體谷置二間及較向的加工成-本，故亟需加以改盖。 【發明内容】 ° ^為能克服上述先前技術的問題，本發明旨在提供一種 氣動擊釘裝置，能使高壓空氣驅動氣缸保持在上移位置之 作用力大於驅動氣缸下移的作用力，以提升使用上的安全 性，，能簡化搶體内驅動氣缸上、下移動及活塞復位移二 所需高壓空氣流道的複雜性，以提升氣動釘搶之操作性能 及降低產製成本為目的老。 為具體實踐上述目的，本發明係在一釘搶槍體内設置 —可動式氣缸，氣缸内設有一擊釘用的活塞，將氣缸内部 1323211 區隔形成一頂層氣缸室與一底層氣缸室，且搶體内形成一 主氣室，以集結外界持續供入並維持一定恆壓的高壓空 氣，並於主氣室一端設有一扳機閥，接受一設於槍體上之 扳機的驅動，以啟、閉高壓空氣，氣缸頂部並形成一能啟、 閉頂層氣缸室與主氣室之間通路的頭閥，同時氣缸外壁與 搶體内壁之間形成一底層氣室，於活塞下移擊釘時能集結 頂層氣缸室導入高壓空氣；其中： 氣缸外壁形成一閥環，能接受搶體内高壓空氣的驅動 而帶動氣缸位移，以控制頭閥的啟、閉時機，且閥環能與 槍體内壁間隔形成一中層氣室，以集結經由扳機閥導入的 高壓空氣，並於中層氣室與主氣室之間的搶體内壁上固設 或一體形成一隔環，令閥環接受中層氣室内高壓空氣驅動 之面積大於接受主氣室内高壓空氣驅動的面積，同時閥環 與隔環之間的槍體内壁上設有一通往外界大氣的排壓孔； 據此，於未壓扣扳機時，高壓空氣驅動氣缸保持在上移位 置之作用力係大於驅動氣缸下移的作用力，致使頭閥不會 受外力影響而開閥，進而防止活塞誤擊發釘件，藉以提升 釘搶在使用上的安全性。 然而，為能再加詳述本發明，併予列舉出較佳實施例， 請配合參照圖式而詳細說明如後述： 【實施方式】 請參閱圖1，揭示出本發明一種氣動擊釘裝置的實施例 剖示圖，其中可見悉本發明之實施環境，包含在一釘搶之 槍體1内設置一可向下移動式氣缸2,氣缸2内設有一擊釘 用的活塞3，其底部連結一用來擊發釘件的擊釘桿31，活 8 1323211 塞3上設有至少一止氣墊圈4,可將氣缸2内部區隔形成一 頂層氣缸室21與一底層氣缸室22，且該搶體丨内形成有一 主氣室10,連貫於搶體1之握部u内與氣缸2外圍之間， • 以集結自握部11尾端導入由外界持續供應並維持一定恆壓 的尚壓空軋（如圖2之點狀區域），並於主氣室1〇一端設有 一扳機閥50，接受一設於搶體丨上之扳機5的驅動，以開 啟及關閉握部11之主氣室10連接至搶體丨内一扳機氣道 15之間的通路；同時，該氣缸2外壁與搶體1内壁之間形 • 成有一底層氣室16，且氣缸2中段及底部的缸壁上各自設 有複數排氣閥孔25及複數通氣孔26,各自連通於氣紅2内 部與底層氣室16之間’並於氣缸2外壁上套設一能遮擋複 數排氣閥孔25的止氣束環6,以阻斷底層氣室16内之氣體 經由複數排氣閥孔25進入氣缸2内。 依據上述搶體1之實施環境，本發明係在氣缸2頂部 一體形成有一頭閥23(如圖1所示）；該頭閥23上設有一主 氣閥口 231及一止氣環61’且搶體1内具有一環形肋壁12, • 止氣環Μ能於氣缸2下移前緊貼環形肋壁12(配合圖2所 不）’以關閉經由主氣閥口 231連通主氣室1〇與頂層氣缸室 21之間=通路，止氣環61並能於氣缸2下移時脫離環形肋 壁（配,δ圖3所示），而開啟該通路；同時，該頭閥23頂 部内二形成有—環狀凸肋232，搶體i頂部設有一緩衝塾 - 1 .於^— 1頂部設有至少一上逃氣孔13與外界大氣相連 ^ 缸2下移前（配合圖2所示），頭閥23上之環狀凸 、—此開敎上逃氣孔13與頂層氣缸室21之間的通路， 以宣戌頂層氣虹室21内的高壓空氣，並於氣缸2下移時（配 9 1323211 合圖3所不）’環狀凸肋232能止擋於緩衝塾7 _L，以關閉 該通路。 上述氣缸2外壁形成有一閥環24(如圖1所示），閥環 24與槍體1内壁之間設有至少一止氣墊圈41，能與槍體1 内壁間隔形成一中層氣室14,於壓扣扳機5前（配合圖2所 不）’中層氣室14能集結主氣室1〇經由扳機閥5〇及扳機氣 道15導入的高壓空氣，且中層氣室14與主氣室10之間的 搶體1内壁上一體形成或固設有一隔環9，促使閥環24裸 露於中層氣室14内的面積T大於裸露在主氣室1〇内的面 積t’換言之’該閥環24接受中層氣室14内高壓空氣驅動 之面積T係大於接受主氣室10内高壓空氣驅動的面積t， 因此，當主氣至1〇及中層氣室14 一同導入高壓空氣時， 中層氣室14内之高壓空氣會驅動閥環24帶動氣缸2上移 且保持在上移位置；同時，該隔環9與搶體丨内壁之間設 有至少一止氣墊圈42,且隔環9與閥環24之間設有至少一 止氣墊圈43 ’使閥環24與隔環9利用止氣墊圈41、们及 43阻隔主氣室10及中層氣室14内的氣體，藉以限制主氣 室10内高壓空氣對閥環24的施力面積’並於止氣塾圈41 及42之間的搶體1内壁上設有一通往外界大氣的排壓孔 17 ’在閥環24帶動氣缸2上、下往復移動的過程中（如圖3 及圖5所示）’閥環24與隔環9之間的氣體能經由排壓孔 17連通外界大氣而降壓，使氣缸2上、下移動時更為敏捷。 為了在驅動擊釘之前，確保氣缸2能保持在上移也置， 亦可在中層氣室14内設置一彈簧8(如圖1所示），以輔助中 層氣室14内高壓空氣推引氣缸2保持在上移位置，且彈箸 1323211 8之推力係小於主氣室10内高壓空氣驅動氣缸2下移的作 用力。 藉由上述構件之組成，可供據以實施本發明，特別是 在活塞3下移擊釘前，亦即操作者未壓扣扳機5時(如圖2 所示），主氣室10内的高壓空氣施壓於閥環24頂部，並經 由扳機閥50及扳機氣道15導入中層氣室14内集壓，以施 壓於閥環24底部；此時，中層氣室14内高壓空氣之作用 力較大，會驅動氣缸2及其頭閥23 —同保持在上移位置， 以關閉頂層氣缸室21與主氣室10之間的氣路，並開啟頂 層氣缸室21與上逃氣孔13間的排氣通路；據此，即使操 作者不慎將釘搶掉落地面、碰撞堅硬物或敲擊其前端射 嘴，該中層氣室14内之高壓空氣仍會驅動氣缸2及其頭閥 23保持在上移位置，因此不會產生頭閥23鬆脫開閥而誤擊 發釘件的危險狀況，藉以提升釘槍在使用上的安全性。 當操作者壓扣扳機5時(如圖3所示），會驅動扳機閥50 内的閥桿，以關閉主氣室10内高壓空氣通往扳機氣道15 内的氣路，並開啟扳機氣道15連通至外界大氣的氣路，使 中層氣室14内的高壓空氣宣洩降壓；此時，主氣室10内 的高壓空氣驅動閥環24頂部，使氣缸2及其頭閥23 —同 下移，以開啟頂層氣缸室21與主氣室10間的氣路，並關 閉頂層氣缸室21與上逃氣孔13間的排氣通路，使主氣室 10内的高壓空氣持續導入頂層氣缸室21内，以驅動活塞3 迅速下移擊釘；此刻，底層氣缸室22内之氣體的大部分可 經由複數通氣孔26導入底層氣室16内集壓，少部分可經 由氣缸2底部擊釘桿31下移擊釘的通孔排放至外界大氣； H於活塞3下移至經過氣虹2内壁的複數排氣閥孔25 iH4r)，頂層氣缸室21⑽高壓空氣會導入複數 排氣閥孔25内，推抵止氣麵6略為脫離氣缸2外壁促 使頂層乳缸室21内的高壓空氡導入底層氣室^内集壓。 另當操作者釋放扳機5瞬間(如圖5所示），亦即活塞3 成後至尚未上移復位期間，高壓空氣回復導入 ‘ β ’會驅動氣虹2及頭闕23上移復位，以關The traditional pneumatic nailing device has a main air chamber, which can continuously introduce high-pressure air pressure collection from the tail of the gun as a power source for the nailing operation, and has a movable or non-moving cylinder in the body. The cylinder is provided with a piston for nailing, which can divide the cylinder into a top cylinder chamber and a bottom gas red chamber, and a bottom air chamber is formed between the outer wall of the cylinder and the gun body, and the top layer can be assembled when the piston is moved under the piston. The high-pressure air introduced into the cylinder chamber is provided with a trigger that can be pressed to drive the nail; when the trigger is pressed, the high-pressure air of the main air chamber can be introduced into the top cylinder chamber to drive the piston down the nail, and When the trigger is released, the high-pressure air can be bubbled from the top gas chamber, and the high-pressure air of the bottom chamber is introduced into the bottom cylinder chamber to drive the piston up and reset. In the prior art, a movable cylinder is provided, which can be found in U.S. Patent No. 6,468,202, which discloses that a valve can be provided on a downwardly movable cylinder, and a cylinder ring is formed on the outer wall of the cylinder and is disposed on the outer wall of the cylinder. A bottom air chamber between the body is set up—spring; especially when the surface trigger is triggered, the high-pressure air in the main air chamber can drive the valve ring to drive the cylinder: the upper exhaust passage of the cylinder chamber is released and opens the top floor The passage, the high-pressure air guiding the main air chamber is moved by the driving force of the layered gas rainbow chamber, and the high-pressure air will guide the inner gas chamber 6 1323211 to collect pressure; when the trigger is released, the high pressure The air and the spring a _ ring drive the cylinder up and down to close the main air chamber and the top drive valve passage, and open the high pressure air in the air chamber between the upper exhaust chamber and the upper chamber of the top cylinder chamber to be introduced into the bottom layer. In the cylinder chamber, the bottom layer is at this time. The η drive (6) plugs up and knows that the force of the high-pressure air in the surface of the body that is in contact with the high-pressure air is also greater; however, the larger the head product is, the double pressure air Drive gas The difference in surface area between the up and down movements, "I was caused by the high pressure air drive when the cylinder was not pressed, the energy release effect was not satisfactory, especially when the operator did not = close the head valve landing When facing, colliding with hard objects or tapping on the front end of the nozzle, it is easy to smash the body to loosen the valve and accidentally hit the nailing member, that is, the dangerous condition that does not need to be pressed = machine = head valve nail member has been caused The problem of poor safety is that it will kill the upper and lower movements of the internal drive cylinder and the reset movement of the piston. The number of configurations of the === is more complicated and complicated. In order to overcome the problems of the prior art mentioned above, the present invention aims to provide a pneumatic nailing device capable of holding a high-pressure air-driven cylinder thereon. The force of the moving position is greater than the force of driving the cylinder downward to improve the safety of use, and the complexity of the high-pressure air flow path required for driving the upper and lower movement of the cylinder and the resetting of the piston can be simplified. Lift pneumatic nail grab For the purpose of practically implementing the above objects, the present invention provides a movable cylinder in a nail gun body, and a piston for a nail is arranged in the cylinder to separate the inner portion 1332311 of the cylinder. Forming a top cylinder chamber and a bottom cylinder chamber, and forming a main air chamber in the body to collect high-pressure air continuously supplied and maintained at a constant pressure, and a trigger valve is arranged at one end of the main air chamber to receive a setting The trigger on the gun body drives the high-pressure air to open and close, and forms a head valve that opens and closes the passage between the top cylinder chamber and the main air chamber, and forms a gap between the outer wall of the cylinder and the inner wall of the cylinder. The bottom air chamber can collect high-pressure air from the top cylinder chamber when the nail is moved under the piston; wherein: the outer wall of the cylinder forms a valve ring, which can be driven by the high-pressure air in the body to drive the cylinder displacement to control the opening of the head valve. Closing the timing, and the valve ring can form a middle air chamber spaced apart from the inner wall of the gun to collect the high-pressure air introduced through the trigger valve and rob the inner wall between the middle air chamber and the main air chamber Fixing or integrally forming a spacer ring, so that the valve ring receives the area driven by the high-pressure air in the middle air chamber is larger than the area driven by the high-pressure air in the main air chamber, and the inner wall of the gun between the valve ring and the spacer ring is provided with an external passage. According to this, when the trigger is not pressed, the force of the high-pressure air driving cylinder to be kept in the up position is greater than the force of driving the cylinder downward, so that the head valve is not affected by the external force and the valve is opened. In turn, the piston is prevented from accidentally hitting the nail member, thereby improving the safety of the nail grab. However, in order to further clarify the present invention, and to exemplify the preferred embodiments, the following detailed description will be made with reference to the drawings: [Embodiment] Referring to FIG. 1, a pneumatic nailing device of the present invention is disclosed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It can be seen that the implementation environment of the present invention includes a downwardly movable cylinder 2 disposed in a gun body 1 and a piston 3 for a nail in the cylinder 2, the bottom of which is connected a nailing rod 31 for firing the nail member, the living 8 1323211 plug 3 is provided with at least one gas retaining washer 4, which can form the inner portion of the cylinder 2 to form a top cylinder chamber 21 and an underlying cylinder chamber 22, and the grab A main air chamber 10 is formed in the body, which is continuously connected between the grip portion u of the grab body 1 and the periphery of the cylinder 2, and is introduced into the tail end of the gripping portion 11 to continuously supply and maintain a constant pressure. Rolling (as shown in Fig. 2), and providing a trigger valve 50 at one end of the main air chamber, receiving a drive of the trigger 5 provided on the body to open and close the main air of the grip 11. The chamber 10 is connected to a passage between the trigger air passages 15 of the grab body; meanwhile, the outer wall of the cylinder 2 Forming a bottom air chamber 16 between the inner wall of the body 1 and a cylinder wall of the middle portion and the bottom portion of the cylinder 2 are respectively provided with a plurality of exhaust valve holes 25 and a plurality of vent holes 26, each of which is connected to the interior and bottom of the gas red 2 The air chamber 16 is disposed on the outer wall of the cylinder 2 with a gas-stop ring 6 capable of blocking the plurality of exhaust valve holes 25 to block the gas in the bottom gas chamber 16 from entering the cylinder 2 through the plurality of exhaust valve holes 25. Inside. According to the implementation environment of the above-mentioned body 1, the present invention integrally forms a head valve 23 (shown in FIG. 1) on the top of the cylinder 2; the head valve 23 is provided with a main air valve port 231 and a gas stop ring 61'. The body 1 has an annular rib wall 12, and the gas ring 紧 can be closely attached to the annular rib wall 12 (not shown in FIG. 2) before the cylinder 2 moves downward to close the main air chamber 1 via the main air valve port 231. Between the crucible and the top cylinder chamber 21 = passage, the air stop ring 61 can be disengaged from the annular rib wall when the cylinder 2 moves downward (as shown in FIG. 3), and the passage is opened; at the same time, the head valve 23 is inside the top The second is formed with a ring-shaped rib 232. The top of the body i is provided with a buffer 塾-1. At the top of the ^-1 is provided at least one upper air vent 13 connected to the outside atmosphere ^ before the cylinder 2 moves downward (as shown in Fig. 2) The annular protrusion on the head valve 23, the passage between the escape hole 13 and the top cylinder chamber 21, to circulate the high-pressure air in the top gas chamber 21, and when the cylinder 2 moves down ( With 9 1323211 not shown in Figure 3) 'The annular rib 232 can stop at the buffer 塾7_L to close the passage. The outer wall of the cylinder 2 is formed with a valve ring 24 (shown in FIG. 1). The valve ring 24 and the inner wall of the gun body 1 are provided with at least one air sealing washer 41, which can form a middle air chamber 14 spaced apart from the inner wall of the gun body 1. Before the press trigger 5 (not shown in FIG. 2), the middle air chamber 14 can collect the high pressure air introduced by the main air chamber 1 through the trigger valve 5〇 and the trigger air passage 15, and the middle air chamber 14 and the main air chamber 10 An inner ring 9 is integrally formed or fixed on the inner wall of the body 1 to urge the valve ring 24 to be exposed in the middle air chamber 14 to have an area T larger than the area exposed in the main air chamber 1'. In other words, the valve ring 24 The area T driven by the high-pressure air in the middle chamber 14 is larger than the area t driven by the high-pressure air in the main chamber 10. Therefore, when the main gas reaches 1〇 and the middle chamber 14 is introduced with high-pressure air, the middle chamber 14 The high-pressure air inside drives the valve ring 24 to move the cylinder 2 up and maintains in the up position; at the same time, at least one air-stop gasket 42 is disposed between the spacer ring 9 and the inner wall of the body, and the spacer ring 9 and the valve ring Between 24, at least one air lock washer 43' is provided to make the valve ring 24 and the spacer ring 9 use the air lock washer 41, and 43 The gas in the main air chamber 10 and the middle air chamber 14 is arranged to limit the urging area of the high pressure air in the main air chamber 10 to the valve ring 24 and is provided on the inner wall of the smashing body 1 between the air suffocating rings 41 and 42. The pressure-receiving hole 17' leading to the outside atmosphere is in the process of moving the cylinder 2 up and down and reciprocating (as shown in FIGS. 3 and 5), the gas energy between the valve ring 24 and the spacer ring 9 is discharged. The pressure hole 17 is connected to the outside atmosphere and is depressurized, so that the cylinder 2 is more agile when moving up and down. In order to ensure that the cylinder 2 can be kept moving up before driving the nail, a spring 8 (shown in FIG. 1) may be disposed in the middle air chamber 14 to assist the high-pressure air pushing cylinder in the middle air chamber 14. 2 is maintained in the up position, and the thrust of the magazine 1332311 8 is smaller than the force of the high pressure air driving cylinder 2 moving downward in the main air chamber 10. By the composition of the above components, the invention can be implemented according to the invention, in particular, before the piston 3 is moved under the nail, that is, when the operator does not press the trigger 5 (as shown in FIG. 2), in the main air chamber 10 The high-pressure air is pressed on the top of the valve ring 24, and is introduced into the middle air chamber 14 through the trigger valve 50 and the trigger air passage 15 to apply pressure to the bottom of the valve ring 24; at this time, the force of the high-pressure air in the middle air chamber 14 Larger, the cylinder 2 and its head valve 23 are driven to remain in the up position to close the air path between the top cylinder chamber 21 and the main air chamber 10, and open between the top cylinder chamber 21 and the upper escape hole 13. The exhaust passage; accordingly, even if the operator accidentally throws the nail off the ground, collides with the hard object or strikes the front end nozzle, the high pressure air in the middle air chamber 14 drives the cylinder 2 and its head valve 23 to remain. In the up position, there is no danger that the head valve 23 will loosen and open the valve and accidentally hit the nail member, thereby improving the safety of the nail gun in use. When the operator presses the trigger 5 (as shown in FIG. 3), the valve stem in the trigger valve 50 is driven to close the high pressure air in the main air chamber 10 to the air passage in the trigger air passage 15, and the trigger air passage 15 is opened. The gas path connecting to the outside atmosphere causes the high-pressure air in the middle air chamber 14 to vent to reduce pressure; at this time, the high-pressure air in the main air chamber 10 drives the top of the valve ring 24, so that the cylinder 2 and its head valve 23 are moved downward. In order to open the air passage between the top cylinder chamber 21 and the main air chamber 10, and close the exhaust passage between the top cylinder chamber 21 and the upper escape hole 13, so that the high pressure air in the main air chamber 10 is continuously introduced into the top cylinder chamber 21 In order to drive the piston 3 to quickly move the nail; at this moment, most of the gas in the bottom cylinder chamber 22 can be introduced into the bottom chamber 16 through the plurality of vents 26, and a small portion can be pressed through the bottom of the cylinder 2 The through hole of the moving nail is discharged to the outside atmosphere; H is moved down to the plurality of exhaust valve holes 25 iH4r) passing through the inner wall of the gas rainbow 2, and the high pressure air of the top cylinder chamber 21 (10) is introduced into the plurality of exhaust valve holes 25, pushing The abutting gas surface 6 is slightly separated from the outer wall of the cylinder 2 to promote the inside of the top tank chamber 21 Radon gas compressed air introduced into the bottom of the collection chamber ^ pressure. In addition, when the operator releases the trigger 5 for an instant (as shown in Fig. 5), that is, after the piston 3 is completed and has not been moved up and reset, the high pressure air returning to the 'β' will drive the gas rainbow 2 and the head 阙 23 to move up and reset. turn off
閉，缸室21與主氣室1〇之間的氣路，並開啟上逃氣 孔一的排讀路；此時，頂層氣缸室21内的高壓空氣， Γί 2逃氣孔13线至外界而降壓；同時，底層氣室16 内的尚^氣，—可經由複數通氣孔26導人底層氣缸室22 内（配口圖j所示），以驅動活塞3上移復位；據此，可簡化 搶=内南壓空氣驅動氣虹2下移關及上移復位關閥所 需氣室或流道的複雜度，以利於降低加工及產製成本。Closing, the air path between the cylinder chamber 21 and the main air chamber 1〇, and opening the exhaust path of the upper escape hole 1; at this time, the high pressure air in the top cylinder chamber 21, 逃ί 2 escape hole 13 line to the outside and descend At the same time, the gas in the bottom plenum 16 can be guided through the plurality of vents 26 into the bottom cylinder chamber 22 (shown in Figure j) to drive the piston 3 up and down; thereby simplifying Grab = the complexity of the air chamber or runner required for the inner air pressure to drive the gas rainbow 2 down and the upper shift to reset the valve, in order to reduce the processing and production costs.
此外本發明於向下移動式氣缸2頂部—體形成之頭 閥23 ’由單—氣路控制其上、下移動時機，以大幅簡化其 複雜度’可有效降健製成本，並使操作更有效率。 而，以上僅為本發明之較佳實施例而已’並非用以 限疋本發明之申請專利範圍，凡其他未脫離本發明所揭示 之精神下而完成的等效修傅或置換，均應包含於後述之申 請專利範圍内。 【圖式簡單說明】 圖1 .揭不本發明—實施例的剖示圖。 圖2·揭示圖1之釘搶於未壓扣扳機時’搶體内集結高 壓空氣之分佈狀態剖示圖。 12 1323211 圖3及圖4:揭示圖2之釘搶於壓扣扳機時，高壓空氣 先驅動氣缸下移後，接續驅動活塞下移擊釘的狀態剖示圖。 圖5及圖6:揭示圖4之釘搶於釋放扳機時，高壓空氣 先驅動氣缸上移後，接續驅動活塞上移復位的狀態剖示圖。 【主要元件符號說明】 1 .........搶體 10 ...........主氣室 11 ...........握部In addition, the head valve 23' formed by the top-body of the downward moving cylinder 2 is controlled by a single-gas path to move the upper and lower movement timings to greatly simplify the complexity thereof, thereby effectively reducing the cost and making the operation more Efficient. The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent modifications or substitutions that do not depart from the spirit of the present invention should be included. It is within the scope of the patent application described later. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing an embodiment of the present invention. Fig. 2 is a cross-sectional view showing the distribution state of the collected high pressure air in the body when the nail of Fig. 1 is robbed of the unpressed trigger. 12 1323211 Fig. 3 and Fig. 4: A state diagram showing the state in which the nail of Fig. 2 is grabbed by the pressure trigger trigger, and the high pressure air first drives the cylinder down, and then drives the piston down the nail. Fig. 5 and Fig. 6 are a cross-sectional view showing the state in which the high-pressure air first drives the cylinder up and then moves the reset piston up and down after the nail of the figure 4 is released. [Main component symbol description] 1 ......... robbing body 10 ........... main air chamber 11 ........... grip
12 ................肋壁 13 ...........上逃氣孔 14 ......... 中層氣室 15 -..........扳機氣道 16 ...........底層氣室 17 排壓孔 2 .........氣缸 21 ………一頂層氣缸室12 ................ rib wall 13 ........... upper escape hole 14 ......... middle air chamber 15 -. ......... trigger air passage 16 ........... bottom air chamber 17 exhaust pressure hole 2 ......... cylinder 21 ......... a top cylinder chamber
22 ...........底層氣缸室 23 .........―頭閥 231 -..........主氣閥口 232 ................凸肋 24 -…-——閥環 25 -----------排氣閥孔 26 通氣孔 3 ...........活塞 31 -..........擊釘桿 13 1323211 4、4卜42、43 -..........止氣墊圈 5 .........扳機 50 ...........扳機閥 6 —....... 止氣束環 61 止氣環 7 緩衝墊 8 ...........彈簀22 ........... bottom cylinder chamber 23 ......... - head valve 231 -........ main air valve port 232 ..... ........... rib 24 -...--valve ring 25 -----------exhaust valve hole 26 vent 3 ......... ..Piston 31 -........ Studs 13 1323211 4, 4 Bu 42, 43 -.......... Air washers 5 ........ Trigger 50 ...........Toggle valve 6 —....... Air stop ring 61 Air stop ring 7 Cushion 8 ...........