TW201836787A - Quick release device of pneumatic tool including a fixed cylinder, an operating cylinder, a blocking unit, and a snap ring - Google Patents
Quick release device of pneumatic tool including a fixed cylinder, an operating cylinder, a blocking unit, and a snap ring Download PDFInfo
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Abstract
Description
本發明是有關於一種衝擊工具,特別是指一種氣動工具之快拆裝置。The invention relates to an impact tool, in particular to a quick release device for a pneumatic tool.
參閱圖1, 習知一氣動工具10包括一槍身11,一設置於該槍身11並沿一條軸線L1延伸的氣缸單元12,一支可被該氣缸單元12驅動並沿該軸線L1線性移動的鑿錘13,及一安裝在該氣缸單元12與該鑿錘13之間的快拆裝置14。Referring to Fig. 1, a pneumatic tool 10 includes a gun body 11, a cylinder unit 12 disposed on the gun body 11 and extending along an axis L1, a cylinder that can be driven by the cylinder unit 12 and linearly moved along the axis L1. The hammer 13 and a quick release device 14 mounted between the cylinder unit 12 and the hammer 13.
該氣缸單元12具有一缸體121,及一可被高壓氣體驅動的活塞122。The cylinder unit 12 has a cylinder 121 and a piston 122 that can be driven by high pressure gas.
該鑿錘13具有一位於該缸體121內且可被該活塞122驅動的被驅動桿131,一連接該被驅動桿131的鑿刀桿132,及一設置於該鑿刀桿132的凸環133。The hammer 13 has a driven rod 131 located in the cylinder 121 and drivable by the piston 122, a chisel rod 132 connecting the driven rod 131, and a convex ring disposed on the chisel rod 132. 133.
該快拆裝置14具有一螺鎖結合於該缸體121的固定套筒15,一可沿該軸線L1移動地套置在該固定套筒15外的活動套筒16,一套置在該固定套筒15外並被限位在該活動套筒16與該固定套筒15之間的彈簧17,一嵌固於該固定套筒15可阻擋該活動套筒16的扣環18,及數個嵌設於該固定套筒15的定位珠19,該活動套筒16具有一內筒面161,及一設置於該內筒面161的退珠環槽162。The quick release device 14 has a fixing sleeve 15 which is screwed to the cylinder 121, and a movable sleeve 16 which is movably sleeved outside the fixing sleeve 15 along the axis L1, and a set is placed on the fixed sleeve a sleeve 17 is disposed outside the sleeve 17 and a spring 17 between the movable sleeve 16 and the fixed sleeve 15, and a retaining sleeve 15 is formed to block the buckle 18 of the movable sleeve 16, and a plurality of The positioning bead 19 is embedded in the fixing sleeve 15 . The movable sleeve 16 has an inner cylindrical surface 161 and a back ring groove 162 disposed on the inner cylindrical surface 161 .
藉由該彈簧17彈推該活動套筒16,使該活動套筒16具備恆朝向該扣環18移動的驅勢,可使該活動套筒16的內筒面161壓觸該等定位珠19,並可藉由該等定位珠19阻擋該鑿錘13的凸環133,進而可以防止該鑿錘13在往前移動的過程中脫離該缸體121,參閱圖2,當使用者欲更換該鑿錘13,只需將該活動套筒16沿該軸線L1朝後推動或拉動,使該退珠環槽162對準該等定位珠19,如此,就可以將該鑿錘13沿該軸線L1往前拉動,且該凸環133可將該等定位珠19推入該退珠環槽162,而不會被該等定位珠19阻擋,進而使該鑿錘13可脫離該缸體121。The movable sleeve 16 is pushed by the spring 17 to make the movable sleeve 16 have a driving force for moving toward the buckle 18, and the inner cylinder surface 161 of the movable sleeve 16 can be pressed against the positioning beads 19 The convex ring 133 of the hammer 13 can be blocked by the positioning beads 19, thereby preventing the hammer 13 from being detached from the cylinder 121 during the forward movement. Referring to FIG. 2, when the user wants to replace the The hammer 13 only needs to push or pull the movable sleeve 16 backward along the axis L1 to align the back ring groove 162 with the positioning beads 19, so that the hammer 13 can be along the axis L1. Pulling forward, the convex ring 133 can push the positioning beads 19 into the back ring groove 162 without being blocked by the positioning beads 19, so that the hammer 13 can be disengaged from the cylinder 121.
該氣動工具10雖然具有上述使用功效,但是仍存在下列問題:Although the pneumatic tool 10 has the above-mentioned effects, the following problems still exist:
一、參閱圖1、圖2,因為是藉由推動或拉動該活動套筒16沿該軸線L1移動,使該等定位珠19可自阻擋位置移動到非阻擋位置,所以該活動套筒16與該固定套筒15之間必須存在一軸向移動間距101,該活動套筒16與該扣環18之間也必須存在一軸向移動間距102,才能使該活動套筒16具有可軸向移動空間,如此,在操作過程中,極易因為使用者的手指不慎擺放在該等軸向移動間距101、102內而被夾傷,使用安全性不佳。1. Referring to Figures 1 and 2, the movable sleeve 16 is movable from the blocking position to the non-blocking position by pushing or pulling the movable sleeve 16 to move along the axis L1. There must be an axial movement spacing 101 between the fixed sleeves 15. There must also be an axial movement spacing 102 between the movable sleeve 16 and the buckle 18 to enable the movable sleeve 16 to move axially. Space, in this way, during operation, it is easy to be pinched by the user's fingers accidentally placed in the axial movement intervals 101, 102, and the safety of use is not good.
二、該活動套筒16被該彈簧17彈推,具備當外力消失後可自動復位的特性,常發生使用者鬆放該活動套筒16後,手指仍擺放在該軸向移動間距102內,而被自動復位的該活動套筒16夾傷的情事,使用安全性不佳。2. The movable sleeve 16 is pushed by the spring 17 and has the characteristic of being automatically reset after the external force disappears. It is often caused that the finger is still placed in the axial movement interval 102 after the user releases the movable sleeve 16. However, the movable sleeve 16 that is automatically reset is pinched, and the use safety is not good.
三、因為該活動套筒16的操作方向與該鑿錘13的工作方向相同,都是沿該軸線L1線性移動,再加上該鑿錘13在工作過程中,該活動套筒16較易因為被外物碰觸就產生線性移動,造成該鑿錘13較易意外脫落,影響工作效率。3. Because the operating direction of the movable sleeve 16 is the same as the working direction of the hammer 13 , it is linearly moved along the axis L1. In addition, the movable sleeve 16 is easier because the hammer 13 is in operation. When it is touched by a foreign object, linear movement occurs, which causes the hammer 13 to fall off accidentally, which affects work efficiency.
因此,本發明之目的,即在提供一種可以防止使用者的手指被夾傷以提高使用安全,同時可以避免鑿錘在工作過程中意外脫落的氣動工具之快拆裝置。Accordingly, it is an object of the present invention to provide a quick release device for a pneumatic tool which can prevent a user's fingers from being pinched to improve the safety of use while avoiding accidental dropping of the hammer during operation.
於是,本發明的快拆裝置適用於安裝在一氣動工具上,該氣動工具包括一槍體,一設置於該槍體的氣缸單元,及一插置於該氣缸單元並沿一條軸線延伸的鑿錘,該氣缸單元具有一連結該槍體並界定出一圍繞該軸線的第一軸向通道的缸體,及一位於該第一軸向通道內的活塞,該鑿錘包括一插置於該第一軸向通道可被該活塞驅動的被驅動桿,一連接該被驅動桿的鑿刀桿,及一設置在該鑿刀桿上的凸環,該快拆裝置包含一固定筒、一操作筒、一阻擋單元及一扣環。Thus, the quick release device of the present invention is suitable for mounting on a pneumatic tool comprising a gun body, a cylinder unit disposed on the gun body, and a chisel inserted in the cylinder unit and extending along an axis a hammer having a cylinder coupled to the gun body and defining a first axial passageway around the axis, and a piston located in the first axial passage, the hammer including an insert a first axial passage is a driven rod driven by the piston, a chisel rod connected to the driven rod, and a convex ring disposed on the chisel rod, the quick release device comprises a fixed cylinder and an operation a barrel, a blocking unit and a buckle.
該固定筒與該缸體連接並沿該軸線朝向該槍體的反向延伸,該固定筒界定出一圍繞該軸線並與該第一軸向通道連通的第二軸向通道,該第二軸向通道用於容置該鑿錘的凸環。The fixed barrel is coupled to the cylinder and extends in the opposite direction of the gun body along the axis, the fixed barrel defining a second axial passage surrounding the axis and communicating with the first axial passage, the second shaft The passage channel is for receiving the convex ring of the hammer.
該操作筒呈可繞該軸線轉動地套置在該固定筒外,並包括一內筒面及一外筒面。The operating cylinder is rotatably disposed outside the fixed cylinder about the axis, and includes an inner cylinder surface and an outer cylinder surface.
該阻擋單元包括數個設置於該固定筒並連通該第二軸向通道的徑向穿孔,分別呈可移動地安裝在該等徑向穿孔中的數個阻擋珠,及分別對應該等徑向穿孔設置於該操作筒的內筒面的數個退珠部,該等阻擋珠可在相對於該鑿錘的凸環的一阻擋位置及一非阻擋位置之間移動,當該操作筒的內筒面壓觸該等阻擋珠,該等阻擋珠位於該阻擋位置,並可阻擋該凸環以防止該鑿錘脫離該固定筒,當轉動該操作筒使該等退珠部對準該等阻擋珠,該等阻擋珠可進入該等退珠部並移動到該非阻擋位置,使該鑿錘可脫離該固定筒。The blocking unit includes a plurality of radial perforations disposed in the fixed cylinder and communicating with the second axial passage, respectively, a plurality of blocking beads movably mounted in the radial perforations, and respectively corresponding to the radial direction a plurality of beading portions disposed on the inner cylinder surface of the operation cylinder, the barrier beads being movable between a blocking position and a non-blocking position relative to the convex ring of the hammer, when the operation cylinder is inside The tubular surface is pressed against the blocking beads, the blocking beads are located at the blocking position, and the convex ring is blocked to prevent the hammer from being detached from the fixed cylinder, and when the operating cylinder is rotated, the protruding beads are aligned with the blocking The beads, the barrier beads can enter the retraction and move to the non-blocking position such that the chisel can be detached from the fixed barrel.
該扣環安裝固定在該固定筒上,防止該操作筒脫離該固定筒。The buckle is fixedly mounted on the fixing cylinder to prevent the operating cylinder from being detached from the fixing cylinder.
本發明之功效在於:本發明是藉由轉動該操作筒,使該等阻擋珠位於該阻擋位置或該非阻擋位置,可以防止使用者的手指被夾傷以提高使用安全,同時可以避免該鑿錘在工作過程中意外脫落。The invention has the effect that the invention can prevent the user's fingers from being pinched to improve the safety of use by rotating the operation cylinder so that the barrier beads are located at the blocking position or the non-blocking position, and the hammer can be avoided. Unexpected fall off during work.
下面結合附圖及實施例對本發明進行詳細說明,在本發明被詳細描述之前,應當注意在以下的說明內容中所使用的相對位置用語,例如“前”、“後”,是以各圖所示暨正常使用方位為基準。The present invention will be described in detail below with reference to the drawings and embodiments. Before the present invention is described in detail, the relative positional terms used in the following description, such as "front" and "rear", are The indication and normal use orientation are the benchmark.
參閱圖2至圖6,本發明快拆裝置的一實施例適用於安裝在一氣動工具20上,該氣動工具20包括一槍體21,一設置於該槍體21的氣缸單元22,及一插置於該氣缸單元22並沿一條軸線L2延伸的鑿錘23,該槍體21具有一槍把211及一槍身212,該氣缸單元22具有一連結該槍身212並界定出一圍繞該軸線L2的第一軸向通道222的缸體221,一位於該第一軸向通道222內並可被高壓氣體驅動而沿該軸線L2前後移動的活塞223,該鑿錘23包括一插置於該第一軸向通道222並可被該活塞221驅動的被驅動桿231,一連接該被驅動桿231的鑿刀桿232,及一設置在該鑿刀桿232上的凸環233,由於該槍體21與該氣缸單元22及該鑿錘23的結構及動作手段,為本發明所屬技術領域中具有通常知識者所易於瞭解,且其並非本發明的特點所在,故在此不贅述其詳細結構及動作手段。Referring to FIGS. 2-6, an embodiment of the quick release device of the present invention is suitable for being mounted on a pneumatic tool 20, the pneumatic tool 20 including a gun body 21, a cylinder unit 22 disposed on the gun body 21, and a a hammer 23 inserted in the cylinder unit 22 and extending along an axis L2. The gun body 21 has a gun handle 211 and a gun body 212. The cylinder unit 22 has a coupling body 212 and defines a surrounding portion. a cylinder 221 of the first axial passage 222 of the axis L2, a piston 223 located in the first axial passage 222 and movable by the high pressure gas to move back and forth along the axis L2, the hammer 23 including an insertion The first axial passage 222 and the driven rod 231 driven by the piston 221, a chisel rod 232 connecting the driven rod 231, and a convex ring 233 disposed on the chisel rod 232, The structure and operation of the gun body 21 and the cylinder unit 22 and the hammer 23 are well known to those of ordinary skill in the art to which the present invention pertains, and are not characteristic of the present invention, so the details thereof will not be described herein. Structure and action means.
本發明該實施例包含一固定筒30、一操作筒40、一阻擋單元50、一扣環60及一卡掣單元70。The embodiment of the present invention comprises a fixed cylinder 30, an operating cylinder 40, a blocking unit 50, a buckle 60 and a cassette unit 70.
該固定筒30與該缸體221連接,並沿該軸線L2朝向該槍體21的槍身212的反向延伸,該固定筒30界定出一圍繞該軸線L2並與該第一軸向通道222連通的第二軸向通道31。該第二軸向通道31用於容置該鑿錘23的凸環233,該第二軸向通道31具有一大孔徑段及小孔徑段,且該小孔徑段的孔徑小於該凸環233的外徑,藉由該凸環233無法進入該小孔徑段,可以控制該鑿錘23的後退行程。The fixing cylinder 30 is connected to the cylinder block 221 and extends in the opposite direction of the gun body 212 of the gun body 21 along the axis L2. The fixing cylinder 30 defines a circumference around the axis L2 and the first axial passage 222. A second axial passage 31 that is in communication. The second axial passage 31 is configured to receive the convex ring 233 of the hammer 23, the second axial passage 31 has a large aperture section and a small aperture section, and the aperture of the small aperture section is smaller than the convex ring 233 The outer diameter, by which the convex ring 233 cannot enter the small aperture section, can control the retracting stroke of the hammer 23.
該操作筒40呈可繞該軸線L2轉動地套置在該固定筒30外,並包括一內筒面41及一外筒面42。The operation cylinder 40 is sleeved around the fixed cylinder 30 so as to be rotatable about the axis L2, and includes an inner cylinder surface 41 and an outer cylinder surface 42.
該阻擋單元50包括數個設置於該固定筒30並連通該第二軸向通道31的徑向穿孔51,分別呈可移動地安裝在該等徑向穿孔51中的數個阻擋珠52,及分別對應該等徑向穿孔51設置於該操作筒40的內筒面41的數個退珠部53。The blocking unit 50 includes a plurality of radial through holes 51 disposed in the fixed cylinder 30 and communicating with the second axial passage 31, respectively, and a plurality of blocking beads 52 movably mounted in the radial through holes 51, and The plurality of anti-bead portions 53 that are equal to the radial perforations 51 are provided in the inner cylindrical surface 41 of the operation cylinder 40, respectively.
該等阻擋珠52可在相對於該鑿錘23的凸環233的一阻擋位置(見圖6、圖7)及一非阻擋位置(見圖10、圖11)之間移動,當該操作筒40的內筒面41壓觸該等阻擋珠52,該等阻擋珠52位於該阻擋位置同時位於該凸環233前方,如此,當該鑿錘23往前移動時,可藉由該等阻擋珠52阻擋該凸環233以防止該鑿錘23脫離該固定筒30,當轉動該操作筒40使該等退珠部53對準該等阻擋珠52,該等阻擋珠52可移動進入該等退珠部53並位於該非阻擋位置,使該鑿錘23可脫離該固定筒30。The blocking beads 52 are movable between a blocking position (see FIGS. 6 and 7) and a non-blocking position (see FIGS. 10 and 11) relative to the convex ring 233 of the hammer 23, when the operating cylinder The inner cylinder surface 41 of the 40 is pressed against the blocking beads 52, and the blocking beads 52 are located in the blocking position at the same time in front of the convex ring 233, so that when the hammer 23 moves forward, the blocking beads can be used 52 blocking the convex ring 233 to prevent the hammer 23 from coming off the fixed cylinder 30. When the operating cylinder 40 is rotated to align the falling beads 53 with the blocking beads 52, the blocking beads 52 can move into the retreating The bead 53 is located in the non-blocking position so that the hammer 23 can be detached from the fixed barrel 30.
在本實施例中,該等退珠部53為連通該外筒面42與該內筒面41的貫孔,如此可以讓使用者方便觀看該等退珠部53是否對準該等阻擋珠52,但該等退珠部53也可為不連通該外筒面42與該內筒面41的盲孔,配合在該外筒面42對應於該等退珠部53的位置製做標記,也可以讓使用者方便得知該等退珠部53是否對準該等阻擋珠52。In this embodiment, the retreating portions 53 are communicating with the through-holes of the outer cylinder surface 42 and the inner cylinder surface 41. This allows the user to conveniently view whether the retreating portions 53 are aligned with the blocking beads 52. However, the anti-bead portion 53 may be a blind hole that does not connect the outer cylinder surface 42 and the inner cylinder surface 41, and is fitted with a mark corresponding to the position of the outer cylinder surface 42 corresponding to the retreat portions 53. The user can easily know whether the anti-bead portions 53 are aligned with the blocking beads 52.
該扣環60安裝固定在該固定筒30外並位於該操作筒40前方,可使該操作筒40被限位在該扣環60與該固定筒30之間,以防止該操作筒40脫離該固定筒30。The buckle 60 is fixedly mounted outside the fixed cylinder 30 and located in front of the operating cylinder 40, so that the operating cylinder 40 can be restrained between the buckle 60 and the fixed cylinder 30 to prevent the operating cylinder 40 from being detached from the The cartridge 30 is fixed.
參閱圖4、圖5、圖8,該卡掣單元70包括設置於該操作筒40的內筒面41並沿該軸線L2延伸的數軸向凹槽71,一設置於該固定筒30的容置孔72,一安裝在該容置孔72內的彈性件73,及一安裝在該容置孔72內被該彈性件73彈推,並具備恆朝向該操作筒40移動驅勢的卡掣珠74,當該卡掣珠74進入其中一軸向凹槽71時,可給予該操作筒40一轉動卡掣力,必須在該操作筒40的被轉動力大於該轉動卡掣力的情況下,該操作筒40才能被轉動,如此,可以提高該操作筒40的定位效果,使該操作筒40不會被輕易轉動。Referring to FIG. 4 , FIG. 5 and FIG. 8 , the latch unit 70 includes a plurality of axial grooves 71 disposed on the inner cylinder surface 41 of the operating cylinder 40 and extending along the axis L2 , and a capacity disposed on the fixed cylinder 30 . a hole 72, an elastic member 73 mounted in the receiving hole 72, and a spring loaded in the receiving hole 72 by the elastic member 73, and having a card that constantly moves toward the operating cylinder 40 The bead 74, when the card bead 74 enters one of the axial grooves 71, can give the operating cylinder 40 a rotational clamping force, and must be in the case where the rotational force of the operating cylinder 40 is greater than the rotational clamping force The operation cylinder 40 can be rotated, and thus, the positioning effect of the operation cylinder 40 can be improved, so that the operation cylinder 40 is not easily rotated.
在本實施例中,該等徑向穿孔51、該等阻擋珠52及該等退珠部53的數量皆為四,且呈等角度也就是90度設置,該等軸向凹槽71的數量為八,且呈等角度也就是45度設置,如此,有四條軸向凹槽71與該等退珠部53連通,四條軸向凹槽71與該等退珠部53錯開不連通,藉此,使該操作筒40每轉動45度就被卡掣,可以產生不論該等阻擋珠52位於該阻擋位置或是該非阻擋位置時,該操作筒40都會被卡掣而不會被輕易轉動的使用效果。In this embodiment, the number of the radial through holes 51, the blocking beads 52, and the backing beads 53 are all four, and are disposed at an equal angle, that is, 90 degrees, and the number of the axial grooves 71. It is eight, and is equiangular, that is, 45 degrees. Thus, four axial grooves 71 are in communication with the retreating portions 53, and the four axial grooves 71 are staggered and disconnected from the retreating portions 53. The operation cylinder 40 is clamped every time it is rotated by 45 degrees, and the operation cylinder 40 can be jammed without being easily rotated regardless of whether the barrier beads 52 are in the blocking position or the non-blocking position. effect.
參閱圖13,容易瞭解的是,該等軸向凹槽71的數量可為四,且與該等退珠部53錯開不連通,如此,只有在該等阻擋珠52位於該阻擋位置時,該操作筒40才會被卡掣。Referring to FIG. 13, it is easy to understand that the number of the axial grooves 71 may be four and is not connected to the backing portions 53 so that only when the blocking beads 52 are at the blocking position, The operating cylinder 40 will be jammed.
參閱圖6、圖7、圖8,當該鑿錘23處於工作狀態時,必須將該操作筒40轉動到該內筒面41壓觸該等阻擋珠52的位置,如此,使該等阻擋珠52位於該阻擋位置,同時被限位在該等徑向穿孔51內無法移動,當該鑿錘23被該活塞223驅動沿該軸線L2往前移動時,藉由該等阻擋珠52阻擋該凸環233,就可以防止該鑿錘23脫離該固定筒30。Referring to FIG. 6, FIG. 7, and FIG. 8, when the hammer 23 is in the working state, the operation cylinder 40 must be rotated until the inner cylinder surface 41 presses against the blocking beads 52, so that the blocking beads are made. 52 is located in the blocking position while being restrained from moving in the radial through holes 51. When the hammer 23 is driven forward by the piston 223 along the axis L2, the convex beads 52 block the convex The ring 233 prevents the hammer 23 from coming off the fixed cylinder 30.
參閱圖9至圖12,要更換該鑿錘23 時,先轉動該操作筒40,使該等退珠部53對準該等阻擋珠52,接著將該鑿錘23沿該軸線L2往前拉(見圖10中的箭號80的方向),當該凸環233碰觸該等阻擋珠52時,可以將該等阻擋珠52推入該等徑向穿孔51並進入該等退珠部53內,進而使該等阻擋珠52移動到該非阻擋位置,持續將該鑿錘23往前拉,就可以使該鑿錘23脫離該固定筒30,參閱圖6,等到將新的鑿錘23***該第一軸向通道222後,再轉動該操作筒40,使該內筒面41再度壓觸該等阻擋珠52,就可以使該等阻擋珠52再度移動到該阻擋位置,並可開始工作。Referring to FIG. 9 to FIG. 12, when the hammer 23 is to be replaced, the operation cylinder 40 is first rotated to align the ball-removing portions 53 with the blocking beads 52, and then the hammer 23 is pulled forward along the axis L2. (See the direction of the arrow 80 in FIG. 10). When the convex ring 233 touches the blocking beads 52, the blocking beads 52 can be pushed into the radial through holes 51 and enter the falling beads 53. And then moving the blocking beads 52 to the non-blocking position, and continuously pulling the hammer 23 forward, the hammer 23 can be disengaged from the fixing cylinder 30, referring to FIG. 6, waiting for the new hammer 23 to be inserted After the first axial passage 222, the operating cylinder 40 is rotated, and the inner cylinder surface 41 is pressed against the blocking beads 52 again, so that the blocking beads 52 can be moved to the blocking position again and can start working. .
值得說明的是,參閱圖6,本發明該固定筒30與該缸體221可為一體連接結構,參閱圖14,本發明該固定筒30與該缸體221也可為螺鎖連接結構,圖14所示結構的好處在於,不需要修改習知氣動工具,只需要將本發明該固定筒30螺鎖於該缸體221,就可以使用。It should be noted that, referring to FIG. 6 , the fixed cylinder 30 and the cylinder 221 of the present invention may be an integral connection structure. Referring to FIG. 14 , the fixed cylinder 30 and the cylinder 221 of the present invention may also be a screw-lock connection structure. The advantage of the structure shown in Fig. 14 is that it is not necessary to modify the conventional pneumatic tool, and it is only necessary to screw the fixing cylinder 30 of the present invention to the cylinder block 221, and it can be used.
綜上所述,本發明氣動工具之快拆裝置,具有如下所述之功效及優點,故確實能達成本發明之目的。In summary, the quick release device of the pneumatic tool of the present invention has the following advantages and advantages, and thus the object of the present invention can be achieved.
一、本發明是藉由轉動該操作筒40,使該等阻擋珠52位於該阻擋位置或該非阻擋位置,因為不需要推動或拉動該操作筒40沿該軸線L2移動,且不需要存在該操作筒40的軸向移動間距,如此,可以避免使用者的手指被夾傷,可以提高使用安全。1. The present invention is to rotate the operating cylinder 40 such that the blocking beads 52 are in the blocking position or the non-blocking position because there is no need to push or pull the operating cylinder 40 to move along the axis L2, and the operation does not need to exist. The axial movement distance of the cylinder 40 can prevent the user's fingers from being pinched and can improve the safety of use.
二、本發明是藉由轉動該操作筒40,使該等阻擋珠52位於該阻擋位置或該非阻擋位置,因為操作方向與該鑿錘23的工作方向不同,而且該操作筒40較不易受外力碰觸就產生轉動,所以可以減少該鑿錘23意外脫離該固定筒30的機率,可以提高工作效率。2. The present invention is to rotate the operating cylinder 40 such that the blocking beads 52 are located at the blocking position or the non-blocking position because the operating direction is different from the working direction of the hammer 23, and the operating cylinder 40 is less susceptible to external forces. When the touch is generated, the rotation is generated, so that the probability that the hammer 23 accidentally disengages from the fixed cylinder 30 can be reduced, and the work efficiency can be improved.
三、本發明藉由該卡掣單元70,可以對該操作筒40產生卡掣效果,使該操作筒40不會輕易被轉動,藉此可以有效防止該鑿錘23脫離該固定筒30,可以提高工作效率。3. The card cartridge unit 70 of the present invention can produce a click effect on the operation cylinder 40, so that the operation cylinder 40 is not easily rotated, thereby effectively preventing the hammer 23 from being detached from the fixed cylinder 30. Improve work efficiency.
惟以上所述者,僅為本發明之實施例而已,當不能以此限定本發明實施之範圍,凡是依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾,皆仍屬本發明專利涵蓋之範圍內。However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.
20‧‧‧氣動工具20‧‧‧ pneumatic tools
21‧‧‧槍體21‧‧‧ gun body
211‧‧‧槍把211‧‧‧ guns
212‧‧‧槍身212‧‧‧ gun body
22‧‧‧氣缸單元22‧‧‧Cylinder unit
221‧‧‧缸體221‧‧‧Cylinder
222‧‧‧第一軸向通道222‧‧‧First axial channel
223‧‧‧活塞223‧‧‧Piston
23‧‧‧鑿錘23‧‧‧Chisel
231‧‧‧被驅動桿231‧‧‧Driver
232‧‧‧鑿刀桿232‧‧‧Drilling rod
233‧‧‧凸環233‧‧ ‧ convex ring
30‧‧‧固定筒30‧‧‧ fixed cylinder
31‧‧‧第二軸向通道31‧‧‧Second axial channel
40‧‧‧操作筒40‧‧‧Operator
41‧‧‧內筒面41‧‧‧ inner cylinder
42‧‧‧外筒面42‧‧‧Outer tube surface
50‧‧‧阻擋單元50‧‧‧block unit
51‧‧‧徑向穿孔51‧‧‧radial perforation
52‧‧‧阻擋珠52‧‧‧Blocking beads
53‧‧‧退珠部53‧‧‧Withdrawing
60‧‧‧扣環60‧‧‧ buckle
70‧‧‧卡掣單元70‧‧‧Carmen unit
71‧‧‧軸向凹槽71‧‧‧Axial groove
72‧‧‧容置孔72‧‧‧ accommodating holes
73‧‧‧彈性件73‧‧‧Flexible parts
74‧‧‧卡掣珠74‧‧‧Kanzhu
L2‧‧‧軸線L2‧‧‧ axis
80‧‧‧箭號80‧‧‧Arrow
本發明之其他的特徵及功效,將於參照圖式的實施方式中清楚地呈現,其中: 圖1是一習知氣動工具的剖視圖,顯示一鑿錘處於被阻擋的狀態; 圖2是一類似圖1的視圖,顯示該鑿錘處於不被阻擋的狀態; 圖3是一外觀圖,顯示本發明快拆裝置的一實施例安裝在一氣動工具上; 圖4是一立體分解圖,顯示該氣動工具的一槍體、一氣缸單元、一鑿錘,該實施例包含一固定筒、一操作筒、一阻擋單元、一卡掣單元及一扣環; 圖5是該操作筒的另一角度的立體圖; 圖6是該實施例的一不完整的組合剖視圖,顯示該阻擋單元的數阻擋珠位於一阻擋位置,可防止該鑿錘脫離該固定筒; 圖7是一採自圖3中的線Ⅶ-Ⅶ的剖視圖,顯示該等阻擋珠位於該阻擋位置; 圖8是一採自圖3中的線Ⅷ-Ⅷ的剖視圖,顯示該操作筒被該卡掣單元卡掣的狀態; 圖9是一類似圖7的視圖,顯示轉動該操作筒使數退珠部對準該等阻擋珠; 圖10是一類似圖6的視圖,顯示該等阻擋珠被該鑿錘的凸環推動進入該等退珠部到一非阻擋位置,以及該凸環可通過該等阻擋珠的狀態; 圖11是一類似圖9的視圖,顯示該等阻擋珠進入該等退珠部並位於該非阻擋位置的狀態; 圖12是一類似圖10的視圖,顯示該鑿錘脫離該固定筒; 圖13是一類似圖7的視圖,顯示設置四個退珠部及四條軸向凹槽,而且該等退珠部與該等軸向凹槽錯開不連通;及 圖14是一類似圖6的視圖,顯示該固定筒與一缸體螺鎖連接。Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a cross-sectional view of a conventional pneumatic tool showing a hammer in a blocked state; Figure 2 is a similar Figure 1 is a view showing the hammer in an unblocked state; Figure 3 is an external view showing an embodiment of the quick release device of the present invention mounted on a pneumatic tool; Figure 4 is an exploded perspective view showing A gun body, a cylinder unit and a hammer of the pneumatic tool, the embodiment comprises a fixed cylinder, an operating cylinder, a blocking unit, a latching unit and a buckle; FIG. 5 is another angle of the operating cylinder Figure 6 is an incomplete sectional view of the embodiment showing the number of barrier beads of the blocking unit in a blocking position to prevent the hammer from coming off the fixed cylinder; Figure 7 is taken from Figure 3 A cross-sectional view of line VII-VII showing the blocking beads in the blocking position; Fig. 8 is a cross-sectional view taken from line VIII-VIII in Fig. 3, showing the state in which the operating cylinder is jammed by the latching unit; Is a view similar to Figure 7, showing The operation cylinder is arranged to align the plurality of beading portions with the blocking beads; FIG. 10 is a view similar to FIG. 6 showing that the blocking beads are pushed into the non-blocking position by the convex ring of the chiseling hammer; And the state in which the collar can pass the barrier beads; FIG. 11 is a view similar to FIG. 9 showing the state in which the barrier beads enter the retracted bead and are in the non-blocking position; FIG. 12 is a view similar to FIG. View showing the hammer from the fixed cylinder; Figure 13 is a view similar to Figure 7, showing four beading portions and four axial grooves, and the backing portions are offset from the axial grooves Disconnected; and Figure 14 is a view similar to Figure 6, showing the fixed barrel being screwed to a cylinder.
Claims (8)
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FR2863533B1 (en) * | 2003-12-15 | 2007-05-04 | Montabert Roger | DEVICE FOR RETAINING A TOOL KEY FOR PERCUSSION DEMOLITION APPARATUS |
TWM295009U (en) * | 2006-02-20 | 2006-08-01 | Shuen Tai Prec Entpr Co Ltd | Portable powered hammer |
JP4949886B2 (en) * | 2007-02-16 | 2012-06-13 | 株式会社マキタ | Blow tool chuck mechanism |
TWM363978U (en) * | 2009-05-06 | 2009-09-01 | Rea Lee Industry Co Ltd | Quick release device for chisel of pneumatic hammer |
US20110041346A1 (en) * | 2009-08-24 | 2011-02-24 | Kun-Chen Chen | Chisel with interchangeable blade |
TW201127569A (en) * | 2010-02-08 | 2011-08-16 | Ching-Shun Chang | Rapid tool head assembly structure of reciprocating pneumatic tool |
TWM421866U (en) * | 2011-08-18 | 2012-02-01 | Jih I Pneumatic Ind Co Ltd | Chisel hammer clamping structure for pneumatic tool |
DE102012216137A1 (en) * | 2012-09-12 | 2014-03-13 | Hilti Aktiengesellschaft | Hand tool |
US11007631B2 (en) * | 2014-01-15 | 2021-05-18 | Milwaukee Electric Tool Corporation | Bit retention assembly for rotary hammer |
TWM517079U (en) * | 2015-07-29 | 2016-02-11 | mao-kun Zhang | Reciprocating pneumatic tool |
TWM532348U (en) * | 2016-07-29 | 2016-11-21 | jin-cai Luo | Pitch adjustable quick release device of pneumatic hammer |
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