TW201924871A - Airway switching structure for pneumatic rotary tool preventing inconvenient operation of the conventional pneumatic rotary tool - Google Patents
Airway switching structure for pneumatic rotary tool preventing inconvenient operation of the conventional pneumatic rotary tool Download PDFInfo
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- TW201924871A TW201924871A TW107113064A TW107113064A TW201924871A TW 201924871 A TW201924871 A TW 201924871A TW 107113064 A TW107113064 A TW 107113064A TW 107113064 A TW107113064 A TW 107113064A TW 201924871 A TW201924871 A TW 201924871A
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Abstract
Description
本發明涉及旋鎖及旋鬆物件用的氣動手工具,特別有關一種氣動旋轉手工具的氣路切換結構。 The invention relates to a pneumatic hand tool for a twist lock and a loose object, in particular to a pneumatic switch structure of a pneumatic rotary hand tool.
氣動旋轉手工具,一般而言是提供操作者旋鎖及旋鬆螺帽或螺栓之用,該工具體內通常配置有氣動馬達,用以接受高壓空氣驅動而產生旋轉動能輸出。其中,在輸出旋轉動能的過程中,一般還挾帶輸出敲擊動能,以便於鎖緊螺帽或螺栓時能憑藉該敲擊動能而增加螺牙間的緊密嚙合效果,且於拆卸螺帽或螺栓時能憑藉該敲擊動能而加快鬆脫螺牙間的嚙合作用。 Pneumatic rotary hand tools generally provide the operator with a twist lock and a loose nut or bolt. The tool body is usually equipped with a pneumatic motor for receiving high-pressure air to generate a rotational kinetic energy output. In the process of outputting the rotational kinetic energy, the outputting of the tapping kinetic energy is generally performed, so that the tightening force between the threads can be increased by the tapping kinetic energy when the nut or the bolt is locked, and the nut is removed or By bolting, the bolting kinetic energy can be used to accelerate the engagement between the loose threads.
且知,氣動旋轉手工具為了旋鎖及旋鬆螺帽或螺栓,其所輸出挾帶有敲擊的旋轉動能必須具備正轉及反轉的能力,此能力仰賴該工具體內所集結的高壓空氣,必須能夠驅動氣動馬達產生正轉及反轉,因此工具體內必須具備利於操作者手持切換高壓空氣的正轉氣路及反轉氣路。 It is also known that in order to twist and loosen a nut or bolt, the pneumatic rotary hand tool must have the ability to rotate forward and reverse with the output of the rotary kinetic energy of the tap. This ability depends on the high-pressure air accumulated in the tool body. It must be able to drive the air motor to generate forward and reverse rotations. Therefore, the tool body must have a forward and reverse air path that facilitates the operator to switch the high-pressure air.
如圖1所示,揭露出一種典型的傳統氣動旋轉手工具的結構配置技術,其包含一器殼10a,該器殼10a是由握柄殼座101a、馬達殼座102a及頭殼座103a依序串接鎖固而成,該握柄殼座101a內形成有集結高壓空氣用的氣室,上述的氣動馬達是固定於馬達殼座102a內,且該馬達殼座102a內還設有轉閥,該轉閥用以切換高壓空氣導入正轉氣路或反轉氣路,進而驅動氣動馬達正轉或反轉,該頭殼座103a內樞設有連接套筒扳手用的工具接頭,該氣動馬達是坐落於工具接頭與氣室之間,且該氣動馬達之出力軸是與該工具接頭相連結;進一步的說,該器殼10a的殼壁 上樞設有旋撥環50a,該旋撥環50a是坐落於握柄殼座101a與馬達殼座102a之間,操作者能用手旋轉該旋撥環50a,以帶動轉閥切換高壓空氣導入正轉氣路或反轉氣路,上述有關氣動旋轉手工具的氣路切換結構已揭露於台灣專利公告I453077及I481484中。 As shown in FIG. 1, a structural arrangement technique of a typical conventional pneumatic rotary hand tool is disclosed, which comprises a casing 10a which is supported by a handle housing 101a, a motor housing 102a and a head housing 103a. The valve housing 101a is formed with a gas chamber for collecting high-pressure air. The air motor is fixed in the motor housing 102a, and the motor housing 102a is also provided with a rotary valve. The rotary valve is used for switching the high-pressure air into the forward or reverse air path, thereby driving the air motor to rotate forward or reverse. The head housing 103a is internally provided with a tool joint for connecting the socket wrench. The motor is located between the tool joint and the air chamber, and the output shaft of the air motor is coupled with the tool joint; further, the shell wall of the shell 10a The upper pivot is provided with a rotating ring 50a. The rotating ring 50a is located between the handle housing 101a and the motor housing 102a. The operator can rotate the rotating ring 50a by hand to drive the rotary valve to switch high-pressure air. The gas circuit switching structure for the pneumatic rotary hand tool described above is disclosed in Taiwan Patent Publication Nos. I453077 and I481484.
然而,由於上述典型的傳統氣動旋轉手工具,其旋撥環50a是坐落於握柄殼座101a與馬達殼座102a之間,也就是旋撥環50a是位在接近工具接頭的位置;如此一來,並不利於操作者在旋鎖及旋鬆螺帽或螺栓時切換氣動旋轉手工具正轉及反轉;更具體的說,通常操作者在手持氣動旋轉手工具進行旋鎖及旋鬆螺帽或螺栓的操作時,常常因該待鎖緊或放鬆之螺帽或螺栓的位置過於狹窄,而需將氣動旋轉手工具伸入該狹窄的空間(例如車輛底盤的某處)來旋鎖及旋鬆螺帽或螺栓,如此實施下,操作者很容易受到狹窄空間的阻礙,而造成在用手旋轉該旋撥環以切換氣動旋轉手工具正轉及反轉時的不便;由此可知,傳統氣動旋轉手工具上之旋撥環50a的配置位置因過於接近工具接頭而易生成操作上的不便,因此亟待加以改善。 However, due to the above-mentioned typical conventional pneumatic rotary hand tool, the rotary ring 50a is located between the handle housing 101a and the motor housing 102a, that is, the rotary ring 50a is located close to the tool joint; This is not conducive to the operator switching the pneumatic rotary hand tool forward and reverse when twisting and unscrewing the nut or bolt; more specifically, the operator usually uses a pneumatic rotary hand tool to perform the twist lock and the screw When the cap or bolt is operated, the position of the nut or bolt to be locked or loosened is often too narrow, and the pneumatic rotating hand tool needs to be inserted into the narrow space (such as somewhere in the vehicle chassis) to lock and By loosening the nut or bolt, the operator is easily obstructed by the narrow space, which causes the inconvenience when the rotary ring is rotated by hand to switch the forward and reverse rotation of the pneumatic rotary hand tool; The arrangement position of the rotary ring 50a on the conventional pneumatic rotary hand tool tends to be inconvenient to operate due to being too close to the tool joint, and therefore needs to be improved.
本發明之目的,旨在改善傳統氣動旋轉手工具之旋撥環的配置位置因過於接近工具接頭而易生成操作上不便的問題。 SUMMARY OF THE INVENTION It is an object of the present invention to improve the position of the dial ring of a conventional pneumatic rotary hand tool which is prone to operational inconvenience due to being too close to the tool joint.
為此,本發明一較佳實施例在於提供一種氣動旋轉手工具的氣路切換結構,包括:一器殼,沿一軸心線形成中空殼柱狀,該器殼內具有一能集結高壓空氣的氣室,該器殼之一端樞設有一工具接頭,該器殼之另一端設有一連通該氣室的入氣口;一氣動馬達,固置於該器殼內,並且坐落於該工具接頭與該氣室之間,且該氣動馬達具有一連結該工具接頭的出力軸;一轉閥,沿該軸心線樞置於該器殼內,並且坐落於該氣動馬達與該氣室之間;及一旋撥環,沿該軸心線而鄰近地樞設於該入氣口外圍的器殼殼壁上,該旋撥環經由一樞置於該器殼內的套筒而能旋動該轉 閥以切換氣動馬達正轉或反轉,該套筒坐落於該轉閥與該旋撥環之間。 To this end, a preferred embodiment of the present invention provides a pneumatic circuit switching structure for a pneumatic rotary hand tool, comprising: a housing, forming a hollow shell column along a shaft line, and having a high voltage capable of collecting in the housing a gas chamber, one end of the shell is pivotally provided with a tool joint, and the other end of the shell is provided with an air inlet communicating with the air chamber; a pneumatic motor is fixed in the shell and located at the tool a joint between the joint and the air chamber, and the air motor has a power output shaft coupled to the tool joint; a rotary valve pivoted along the shaft line in the housing and located between the air motor and the air chamber And a rotating ring, which is adjacently disposed on the outer wall of the air inlet opening along the axis of the shaft, and the rotating ring can be rotated by a sleeve pivoted in the housing The turn The valve rotates forward or reverse with a switching air motor, and the sleeve is located between the rotary valve and the rotating ring.
在進一步實施中,該器殼由一握柄殼座、一馬達殼座及一頭殼座沿著該軸心線依序串接鎖固而成,該氣室係形成於該握柄殼座內,該氣動馬達係固定於該馬達殼座內,該工具接頭係樞設於該頭殼座內。其中該入氣口係開設於該握柄殼座遠離該馬達殼座之一端,該旋撥環係鄰近地樞設於該入氣口外圍的握柄殼座的座上。 In a further implementation, the housing is formed by a handle housing, a motor housing and a housing connected in series along the axis line. The air chamber is formed in the handle housing. The air motor is fixed in the motor housing, and the tool joint is pivotally disposed in the head housing. The air inlet is opened at one end of the handle housing away from the motor housing, and the rotating ring is adjacently disposed on a seat of the handle housing at the periphery of the air inlet.
在進一步實施中,該器殼由一握柄殼座及一頭殼座沿著該軸心線依序串接鎖固而成,該氣室係形成於該握柄殼座內,該氣動馬達及該工具接頭分別配置於該頭殼座內。其中該入氣口係開設於該握柄殼座遠離該頭殼座之一端,該旋撥環係鄰近地樞設於該入氣口外圍的握柄殼座座壁上。 In a further implementation, the housing is formed by a pair of handle housings and a housing that are sequentially and serially connected along the axis of the shaft. The air chamber is formed in the handle housing, the air motor and The tool joints are respectively disposed in the head housing. The air inlet is opened at one end of the handle housing away from the head housing, and the rotating ring is adjacently disposed on the wall of the handle housing on the periphery of the air inlet.
在進一步實施中,該氣動馬達的出力軸沿該軸心線同軸配置。其中該氣動馬達的出力軸與該工具接頭之間形成一夾角相連結。 In a further implementation, the output shaft of the air motor is coaxially disposed along the axis of the shaft. The output shaft of the air motor is coupled to the tool joint to form an angle.
在進一步實施中,該氣動馬達的出力軸排除沿該軸心線同軸配置。其中該氣動馬達的出力軸與該軸心線之間形成一夾角相連結。該氣動馬達的出力軸與該工具接頭之間同軸相連結。 In a further implementation, the output shaft of the air motor is disposed coaxially along the axis of the shaft. The output shaft of the air motor is coupled to the axial line to form an angle. The output shaft of the air motor is coaxially coupled to the tool joint.
在進一步實施中,該轉閥內部沿該軸心線形成一導氣通道,該轉閥位於該軸心線的雙端分別形成一供氣端面及一入氣端面,該供氣端面鄰近該氣動馬達,且該導氣通道經由該入氣端面連通該氣室。其中該供氣端面間隔形成一連通該導氣通道的供氣口及一連通大氣的排氣口。該器殼之一側殼壁上形成一連通大氣的排氣孔,該排氣口經由該排氣孔連通大氣。 In a further implementation, the inside of the rotary valve forms an air guiding channel along the axial line, and the rotating valve is formed at each of the two ends of the axial line to form an air supply end surface and an air inlet end surface, and the air supply end surface is adjacent to the pneumatic air a motor, and the air guiding passage communicates with the air chamber via the air inlet end surface. The air supply end face is formed with an air supply port that communicates with the air guiding channel and an air outlet that communicates with the atmosphere. An exhaust hole communicating with the atmosphere is formed on one side wall of the casing, and the exhaust port communicates with the atmosphere via the exhaust hole.
在進一步實施中,該器殼內配置有一導流盤,該導流盤坐落於該氣動馬達與該轉閥之間,該氣動馬達與該轉閥經由該導流盤而相互連接,該導流盤具有一用以導引高壓空氣驅動氣動馬達正轉的正轉進氣孔及一用以導引高壓空氣驅動氣動馬達反 轉的反轉進氣孔。其中該轉閥與該氣室之間配置有一彈性元件,該轉閥受該彈性元件施壓而壓觸該導流盤的一側盤面。 In a further implementation, a guide disc is disposed in the housing, the guide disc is located between the air motor and the rotary valve, and the air motor and the rotary valve are connected to each other via the guide disc. The disc has a forward-rotating air inlet for guiding the high-pressure air to drive the air motor to rotate forward, and a guide air for guiding the high-pressure air to drive the air motor Turn the reverse air intake. An elastic member is disposed between the rotary valve and the air chamber, and the rotary valve is pressed by the elastic member to press against a side surface of the deflector.
根據上述,本發明所能呈現的技術功效在於:將旋撥環設置在氣動旋轉手工具的尾端,更具體的說,旋撥環是坐落於鄰近入氣口的位置,以利於操作者切換氣動旋轉手工具正轉及反轉,特別是在將氣動旋轉手工具伸入狹窄的空間來旋鎖及旋鬆螺帽或螺栓的過程中。 According to the above, the technical effect of the present invention is that the rotary ring is disposed at the end of the pneumatic rotary hand tool, and more specifically, the rotary ring is located adjacent to the air inlet to facilitate the operator to switch the pneumatic Rotating the hand tool forwards and reverses, especially when the pneumatic rotary hand tool is extended into a narrow space to lock and unscrew the nut or bolt.
10a、10b、10c‧‧‧器殼 10a, 10b, 10c‧‧‧ shell
101a、101b、101c‧‧‧握柄殼座 101a, 101b, 101c‧‧‧ handle housing
102a、102b‧‧‧馬達殼座 102a, 102b‧‧‧ motor housing
103a、103b、103c‧‧‧頭殼座 103a, 103b, 103c‧‧‧ head shell
11‧‧‧軸心線 11‧‧‧Axis line
12‧‧‧氣室 12‧‧‧ air chamber
13‧‧‧入氣口 13‧‧‧ inlet
14‧‧‧氣閥 14‧‧‧ gas valve
15‧‧‧壓扣開關 15‧‧‧clamp switch
16‧‧‧排氣孔 16‧‧‧ venting holes
17‧‧‧套筒 17‧‧‧Sleeve
171‧‧‧栓孔 171‧‧‧Bolt hole
18‧‧‧行程弧孔 18‧‧‧Travel arc hole
19‧‧‧栓桿 19‧‧‧ bolt
20‧‧‧氣動馬達 20‧‧‧Air motor
21‧‧‧轉子 21‧‧‧Rotor
22‧‧‧葉片 22‧‧‧ blades
23‧‧‧出力軸 23‧‧‧Output shaft
30‧‧‧轉閥 30‧‧‧turn valve
31‧‧‧導氣通道 31‧‧‧ air guiding channel
32‧‧‧供氣端面 32‧‧‧ gas supply end face
33‧‧‧入氣端面 33‧‧‧Inlet end face
34‧‧‧供氣口 34‧‧‧ gas supply port
35‧‧‧排氣口 35‧‧‧Exhaust port
40‧‧‧排氣環 40‧‧‧Exhaust ring
41‧‧‧排氣分流孔 41‧‧‧Exhaust manifold
50a、50b‧‧‧旋撥環 50a, 50b‧‧‧ring ring
51‧‧‧卡槽 51‧‧‧ card slot
60‧‧‧彈性元件 60‧‧‧Flexible components
70‧‧‧導流盤 70‧‧‧Board
71‧‧‧正轉進氣孔 71‧‧‧ Forward air intake
72‧‧‧反轉進氣孔 72‧‧‧Reverse air intake
80‧‧‧氣密墊 80‧‧‧ airtight cushion
90‧‧‧工具接頭 90‧‧‧Tool connector
θ 1、θ 2‧‧‧夾角 θ 1, θ 2‧‧‧ angle
圖1是傳統氣動旋轉手工具的立體圖;圖2是本發明中氣動旋轉手工具之第一種實施例的立體圖;圖3是圖2的剖示圖;圖4是圖3中A-A斷面的剖示圖;圖5是圖3中B-B斷面的剖示圖;圖6揭露高壓空氣驅動氣動馬達正轉時的氣路示意圖;圖7揭露高壓空氣驅動氣動馬達反轉時的氣路示意圖;圖8是本發明中氣動旋轉手工具之第二種實施例的剖示圖。 1 is a perspective view of a conventional pneumatic rotary hand tool; FIG. 2 is a perspective view of a first embodiment of the pneumatic rotary hand tool of the present invention; FIG. 3 is a cross-sectional view of FIG. 2; Figure 5 is a cross-sectional view of the BB section of Figure 3; Figure 6 is a schematic view of the gas path when the high-pressure air-driven air motor is rotating forward; Figure 7 is a schematic view of the gas path when the high-pressure air-driven air motor is reversed; Figure 8 is a cross-sectional view showing a second embodiment of the pneumatic rotary hand tool of the present invention.
請合併參閱圖2至圖5,揭露本發明之第一種實施例的配置細節,說明本發明之氣動旋轉手工具的氣路切換結構,包括一器殼10b、一氣動馬達20、一轉閥30及一旋撥環50b,其中:如圖2及圖3所示,該器殼10b係沿一軸心線11形成中空殼柱狀,並且作為手工具的握柄。在具體實施上,為了考量組裝氣動馬達20及轉閥30時的方便性,該器殼10b可由一握柄殼座101b、一馬達殼座102b及一頭殼座103b沿著軸心線11依序串接鎖固而成,使得能於器殼10b的握柄殼座101b內形成一集結高壓空氣用的氣室12,並在握柄殼座101b遠離馬達殼座102b的一端設有一連接高壓空氣接頭用的入氣口13;在一較佳實施中,該入氣口13可以坐落於氣動旋轉手工具的尾端,以便於高壓 空氣接頭能經由入氣口13而連通氣室12,使高壓空氣能導入氣室12內。 Referring to FIG. 2 to FIG. 5, the configuration details of the first embodiment of the present invention are disclosed, and the pneumatic circuit switching structure of the pneumatic rotary hand tool of the present invention is illustrated, which includes a casing 10b, a pneumatic motor 20, and a rotary valve. 30 and a rotary ring 50b, wherein: as shown in FIG. 2 and FIG. 3, the casing 10b is formed as a hollow shell column along an axial line 11 and serves as a grip of a hand tool. In a specific implementation, in order to consider the convenience when assembling the air motor 20 and the rotary valve 30, the housing 10b can be sequentially arranged along a shaft line 11 by a handle housing 101b, a motor housing 102b and a head housing 103b. The series connection is locked to form a gas chamber 12 for collecting high pressure air in the handle housing 101b of the housing 10b, and a high pressure air connection is provided at one end of the handle housing 101b away from the motor housing 102b. Intake port 13; in a preferred embodiment, the air inlet 13 can be located at the end of the pneumatic rotating hand tool to facilitate high pressure The air joint can communicate with the air chamber 12 via the air inlet 13 to allow high pressure air to be introduced into the air chamber 12.
其中,該氣室12的一端設有一氣閥14,且握柄殼座101b的一側壁面裝設有一可供操作者用手按壓及釋放的壓扣開關15;當操作者按壓該壓扣開關15時能開啟氣閥14,使得高壓空氣能從握柄殼座101b遠離馬達殼座102b之一端的入氣口13導入氣室12內;反之,當操作者釋放該壓扣開關15時能關閉氣閥14,以阻隔高壓空氣從握柄殼座101b遠離馬達殼座102b之一端的入氣口13導入氣室12內。 An air valve 14 is disposed at one end of the air chamber 12, and a side wall surface of the handle housing 101b is provided with a buckle switch 15 for the operator to press and release by hand; when the operator presses the buckle switch At 15 o'clock, the air valve 14 can be opened, so that high-pressure air can be introduced into the air chamber 12 from the air inlet 13 of the handle housing 101b away from one end of the motor housing 102b; conversely, when the operator releases the buckle switch 15, the air can be turned off. The valve 14 is introduced into the plenum 12 to block high pressure air from the inlet port 13 of the handle housing 101b away from one end of the motor housing 102b.
該馬達殼座102b內開設有呈梯柱狀的裝配孔,使得該氣動馬達20及轉閥30能沿著該軸心線11而串接裝配於馬達殼座102b的裝配孔內。該器殼10b之馬達殼座102b的一側殼壁上還形成有連通大氣的排氣孔16;在具體實施上,該馬達殼座102b形成排氣孔16的外殼壁上可以套設一排氣環40,該排氣環40上開設有多個連通大氣的排氣分流孔41,使得所述多個排氣分流孔41能連通該排氣孔16而導引氣動馬達20旋轉後所排放的剩餘高壓空氣,且該排氣環40還能緩衝排氣孔16所排放的餘氣,以避免該餘氣直接衝擊操作者的手部而造成不適。 A mounting hole in the shape of a ladder column is formed in the motor housing base 102b, so that the air motor 20 and the rotary valve 30 can be serially mounted in the mounting hole of the motor housing base 102b along the axis line 11. An exhaust hole 16 communicating with the atmosphere is formed on one side wall of the motor housing 102b of the housing 10b; in a specific implementation, the motor housing 102b can form a row on the outer wall of the exhaust hole 16 a gas ring 40, the exhaust ring 40 is provided with a plurality of exhaust gas distributing holes 41 connected to the atmosphere, so that the plurality of exhaust gas distributing holes 41 can communicate with the exhaust holes 16 to guide the air motor 20 to rotate after being discharged The remaining high-pressure air, and the exhaust ring 40 can also buffer the residual air discharged from the venting hole 16 to prevent the residual gas from directly impacting the operator's hand and causing discomfort.
進一步的說,該氣動馬達20內樞設有一轉子21,該轉子21上活動配置有多個葉片22,該轉子21經由葉片22接受高壓空氣的驅動而旋轉,該轉子21一端形成一出力軸23,該出力軸23能沿軸心線11而延伸至頭殼座103b內。該工具接頭90在實施上是以排除與軸心線11同軸的方式樞設於頭殼座103b內,也就是說氣動馬達20的出力軸23與工具接頭90之間形成有一夾角θ 1,該夾角θ 1在實施上為90度,但不以此為限。為了使氣動馬達20的出力軸23與工具接頭90相連結,所以氣動馬達20的出力軸23與工具接頭90在實施上分別軸接一斜齒輪(未繪示),該出力軸23藉由其斜齒輪與工具接頭90的斜齒輪相嚙,使氣動馬達20的出力軸23能帶動工具接頭90旋轉。上述為氣動馬達20的出力軸23 與工具接頭90的一種可被具體實施的連結方式,但不以此為限。 Further, the air motor 20 is internally provided with a rotor 21, and the rotor 21 is movably disposed with a plurality of blades 22, and the rotor 21 is rotated by the driving of high-pressure air via the blades 22, and one end of the rotor 21 forms a power output shaft 23. The output shaft 23 can extend along the axis line 11 into the head housing 103b. The tool joint 90 is erected in the head housing 103b in such a manner as to be coaxial with the shaft line 11, that is, an angle θ1 is formed between the output shaft 23 of the air motor 20 and the tool joint 90. The angle θ 1 is 90 degrees in implementation, but is not limited thereto. In order to connect the output shaft 23 of the air motor 20 to the tool joint 90, the output shaft 23 of the air motor 20 and the tool joint 90 are respectively coupled to a helical gear (not shown), and the output shaft 23 is The helical gear engages the helical gear of the tool joint 90 such that the output shaft 23 of the air motor 20 can rotate the tool joint 90. The above is the output shaft 23 of the air motor 20 One type of connection with the tool joint 90 can be specifically implemented, but not limited thereto.
復如圖3至圖5所示,該轉閥30呈中空軸栓狀,並且能夠旋撥轉動的樞置於該馬達殼座102b內,使得該轉閥30能坐落於該氣動馬達20與該器殼10b的氣室12之間。在具體實施上,該握柄殼座101b內樞置有一呈中空軸栓狀的套筒17,該套筒17是坐落於該轉閥30與該旋撥環50b之間,上述氣室12是形成於套筒17內,該套筒17之一端連接該轉閥30,該套筒17之另一端延伸至握柄殼座101b遠離馬達殼座102b之一端,該套筒17延伸至握柄殼座101b遠離馬達殼座102b一端之雙側的徑向位置分別開設有一栓孔171,所述兩栓孔171能分別固設一栓桿19沿轉閥30的徑向凸伸。 As shown in FIG. 3 to FIG. 5, the rotary valve 30 has a hollow shaft pin shape, and can be pivotally placed in the motor housing base 102b so that the rotary valve 30 can be seated on the air motor 20 and Between the air chambers 12 of the casing 10b. In a specific implementation, a sleeve 17 having a hollow shaft pin shape is disposed in the handle housing 101b. The sleeve 17 is located between the rotary valve 30 and the rotating ring 50b. The air chamber 12 is Formed in the sleeve 17, one end of the sleeve 17 is connected to the rotary valve 30, and the other end of the sleeve 17 extends to one end of the handle housing 101b away from the motor housing 102b, the sleeve 17 extending to the handle housing A bolt hole 171 is defined in each of the radial positions of the two sides of the seat 101b away from the end of the motor housing 102b. The two bolt holes 171 can respectively fix a bolt 19 to protrude in the radial direction of the rotary valve 30.
此外,該握柄殼座101b鄰近入氣口13的座壁上開設有一行程弧孔18,且該握柄殼座101b開設行程弧孔18的座壁外圍還樞設有一旋撥環50b,該旋撥環50b一側內壁形成有一卡槽51,該栓桿19能凸伸至行程弧孔18內,並使栓桿19凸伸的卡持於該旋撥環50b的卡槽51內;如此設計,以利操作者能用手旋轉該旋撥環50b,以帶動栓桿19旋持該轉閥30正轉及反轉;其中,該行程弧孔18能拘束栓桿19旋動時的角度,進而控制轉閥30能被旋撥轉動至一出力正轉位置及一出力反轉位置。 In addition, the handle housing 101b defines a stroke arc hole 18 adjacent to the wall of the air inlet opening 13, and a rotation ring 50b is pivotally disposed on the periphery of the seat wall of the handle housing 101b. A latching groove 51 is formed on the inner wall of the side of the dial ring 50b. The latching rod 19 can protrude into the arcing hole 18 and the latching rod 19 can be engaged in the latching slot 51 of the rotating ring 50b. The utility model is designed so that the operator can rotate the rotating ring 50b by hand to drive the bolt 19 to rotate the rotary valve 30 to rotate forward and reverse; wherein the stroke arc hole 18 can restrain the angle when the bolt 19 is rotated. In turn, the rotary valve 30 can be rotated to a forward output position and a power reverse position.
進一步的說,復如圖3所示,該轉閥30內部沿該軸心線11形成有一導氣通道31,且轉閥30位於軸心線11的雙端分別形成一供氣端面32及一入氣端面33。該導氣通道31穿伸通過入氣端面33,使得該導氣通道31能經由入氣端面33連通該氣室12。該轉閥30的供氣端面32係鄰近氣動馬達20;實施上,當轉閥30與氣動馬達20之間沒有配置其他構件時(例如後述的導流盤70),該供氣端面32係可緊靠貼觸該馬達20。 Further, as shown in FIG. 3, a gas passage 31 is formed along the shaft line 11 inside the rotary valve 30, and the rotary valve 30 is formed at the double end of the shaft line 11 to form an air supply end surface 32 and a Inlet end face 33. The air guiding passage 31 extends through the air inlet end face 33 such that the air guiding passage 31 can communicate with the air chamber 12 via the air inlet end face 33. The air supply end face 32 of the rotary valve 30 is adjacent to the air motor 20; in practice, when no other components are disposed between the rotary valve 30 and the air motor 20 (for example, the guide plate 70 to be described later), the air supply end face 32 can be The motor 20 is in close contact.
其中,該供氣端面32上間隔形成一連通該導氣通道31的供氣口34及一連通該馬達殼座102b之排氣孔16的排氣口35;進一步的說,復如圖3所示,該轉閥30的供氣口34與排氣 口35分別坐落於該供氣端面32相對於軸心線11所穿伸通過的偏心位置;其中,該排氣口35係由軸心線11方向的偏心位置以弧槽形式延伸至軸心線11的徑向,以便能和馬達殼座102b的排氣孔16相連通。 The air supply end surface 32 is formed with an air supply port 34 communicating with the air guiding channel 31 and an exhaust port 35 communicating with the air hole 16 of the motor housing base 102b. Further, as shown in FIG. Shown, the air supply port 34 of the rotary valve 30 and the exhaust The port 35 is respectively located at an eccentric position through which the air supply end face 32 extends with respect to the axis line 11; wherein the exhaust port 35 extends from the eccentric position in the direction of the axis line 11 to the axis line in the form of an arc groove The radial direction of 11 is such that it can communicate with the venting opening 16 of the motor housing 102b.
此外,該轉閥30與該氣室12之間配置一彈性元件60,該彈性元件60係對轉閥30施加推力,使轉閥30的供氣端面32朝向氣動馬達20的方向靠攏甚至可實施為貼觸。 In addition, an elastic member 60 is disposed between the rotary valve 30 and the air chamber 12, and the elastic member 60 applies a thrust to the rotary valve 30 to close the air supply end surface 32 of the rotary valve 30 toward the air motor 20 or even implement For the touch.
除了上述配置以外,請續參閱圖3,揭露該器殼10b的馬達殼座102b內還可配置一導流盤70,並且可將該導流盤70與氣動馬達20結合。該導流盤70呈盤狀且具兩對應盤面,使該導流盤70的盤面分別坐落於該氣動馬達20與該轉閥30的供氣端面32之間;而且,該導流盤70上形成一正轉進氣孔71及一反轉進氣孔72分別連通兩對應盤面,且該正轉進氣孔71與反轉進氣孔72分別坐落於該導流盤70相對於軸心線11所穿伸通過的偏心位置。此外,該導流盤70與氣動馬達20之間設有一氣密墊80,該氣密墊80用以提升導流盤70與氣動馬達20結合時的氣密性。 In addition to the above configuration, referring to FIG. 3, a wind deflector 70 may be disposed in the motor housing 102b of the housing 10b, and the deflector 70 may be coupled to the air motor 20. The deflector disk 70 is in the shape of a disk and has two corresponding disk faces, such that the disk surface of the deflector disk 70 is respectively located between the air motor 20 and the air supply end face 32 of the rotary valve 30; and, the deflector disk 70 Forming a forward air inlet hole 71 and a reverse air inlet hole 72 respectively communicating with the two corresponding disk surfaces, and the forward rotation air inlet hole 71 and the reverse air inlet hole 72 are respectively located on the guide wire plate 70 with respect to the axis line 11 eccentric position through which the extension passes. In addition, an airtight gasket 80 is provided between the deflector 70 and the air motor 20 for improving the airtightness when the deflector 70 is combined with the air motor 20.
上述導流盤70的配置用意,在於使氣動馬達20能與外徑尺寸相異之轉閥30的供氣端面32相互連接,以便於高壓空氣由轉閥30通過導流盤70進入氣動馬達20。但是,在本發明中,該導流盤70只是附加構件,而不是解決問題不可缺少的必要構件。 The configuration of the above-described baffle 70 is intended to enable the air motor 20 to be connected to the air supply end face 32 of the rotary valve 30 having a different outer diameter to facilitate the passage of high pressure air from the rotary valve 30 through the deflector 70 into the air motor 20 . However, in the present invention, the deflector 70 is merely an additional member, and is not an essential component that is indispensable for solving the problem.
綜合上述配置,請參閱圖6,揭露將該轉閥30旋撥轉動至出力正轉位置時,該轉閥30的供氣口34能經由正轉進氣孔71連通該氣動馬達20,且該轉閥30的排氣口35能經由反轉進氣孔72連通該氣動馬達20,使得轉閥30之導氣通道31內的高壓空氣,能經由供氣口34及正轉進氣口71而驅動氣動馬達的出力軸23輸出正轉動能,且該氣動馬達20正轉時產生的高壓空氣剩餘氣體能經由反轉進氣口72依序通過轉閥30的排氣口35、排氣環40的排氣分流孔41進而排放至外界大氣中。 With reference to FIG. 6 , when the rotary valve 30 is rotated and rotated to the output forward rotation position, the air supply port 34 of the rotary valve 30 can communicate with the air motor 20 via the forward rotation air inlet 71, and The exhaust port 35 of the rotary valve 30 can communicate with the air motor 20 via the reverse air intake hole 72, so that the high-pressure air in the air guide passage 31 of the rotary valve 30 can pass through the air supply port 34 and the forward air intake port 71. The output shaft 23 of the driving air motor outputs positive rotation energy, and the residual gas of high-pressure air generated when the air motor 20 rotates forward can sequentially pass through the exhaust port 35 of the rotary valve 30 via the reverse air inlet 72, and the exhaust ring 40 The exhaust manifold 41 is in turn discharged to the outside atmosphere.
請續參閱圖7,揭露將該轉閥30旋撥轉動至出力反轉位置時,該轉閥30的供氣口34能經由反轉進氣孔72連通該氣動馬達20,且該轉閥30的排氣口35能經由正轉進氣孔71連通該氣動馬達,使得轉閥30之導氣通道31內的高壓空氣,能經由供氣口34及反轉進氣口72而驅動氣動馬達的出力軸23輸出反轉動能,且該氣動馬達20反轉時產生的高壓空氣剩餘氣體能經由正轉進氣口71依序通過轉閥30的排氣口35、排氣環40的排氣分流孔41進而排放至外界大氣中。 Referring to FIG. 7 , when the rotary valve 30 is rotated to the output reverse position, the air supply port 34 of the rotary valve 30 can communicate with the air motor 20 via the reverse air inlet 72, and the rotary valve 30 The exhaust port 35 can communicate with the air motor via the forward rotation air inlet 71, so that the high-pressure air in the air guiding passage 31 of the rotary valve 30 can drive the air motor through the air supply port 34 and the reverse air inlet 72. The output shaft 23 outputs the reverse rotation energy, and the high-pressure air residual gas generated when the air motor 20 is reversed can sequentially pass through the forward rotation air inlet 71 through the exhaust port 35 of the rotary valve 30 and the exhaust gas flow of the exhaust ring 40. The holes 41 are in turn discharged into the outside atmosphere.
再者,在配置有導流盤70的實例中,該轉閥30與該氣室12之間所配置的彈性元件60,能推壓轉閥30而使該供氣端面32貼觸該導流盤70的盤面。 Furthermore, in the example in which the deflector 70 is disposed, the elastic member 60 disposed between the rotary valve 30 and the plenum 12 can push the rotary valve 30 to cause the air supply end surface 32 to contact the diversion flow. The disk surface of the disk 70.
請參閱圖8,揭露本發明之第二種實施例的配置細節,其與上述第一種實施例的差異處在於:該器殼10c可由一握柄殼座101c及一頭殼座103c沿著軸心線11串接鎖固而成,其中該握柄殼座101c的構造在實施上與第一種實施例中之握柄殼座101b的構造相同就不再贅述。 Referring to FIG. 8, a configuration detail of a second embodiment of the present invention is disclosed. The difference from the first embodiment is that the housing 10c can be along a shaft by a handle housing 101c and a head housing 103c. The core wire 11 is serially locked, and the configuration of the handle housing 101c is identical in construction to the configuration of the handle housing 101b in the first embodiment, and will not be described again.
該頭殼座103c在實施上是將第一種實施例中之馬達殼座102b及頭殼座103b整合為一體,換句話說,該氣動馬達20、轉閥30及工具接頭90是分別配置於頭殼座103c內,其中轉閥30是沿著軸心線11配置於頭殼座103c內,該氣動馬達20的出力軸23是以排除與軸心線11同軸的方式配置於頭殼座103c內,也就是說氣動馬達20的出力軸23與軸心線11之間形成有一夾角θ 2,該夾角θ 2在實施上為90度,但不以此為限。該工具接頭90在實施上是以與氣動馬達20的出力軸23同軸的方式配置於頭殼座103c內,使該氣動馬達20的出力軸23能串接該工具接頭90,進而帶動工具接頭90旋轉。 The head housing 103c is integrated to integrate the motor housing 102b and the head housing 103b in the first embodiment. In other words, the air motor 20, the rotary valve 30 and the tool connector 90 are respectively disposed on In the head housing 103c, the rotary valve 30 is disposed in the head housing 103c along the axis line 11, and the output shaft 23 of the air motor 20 is disposed on the head housing 103c so as to be coaxial with the shaft line 11. The angle θ 2 is formed between the output shaft 23 of the air motor 20 and the shaft line 11 , and the angle θ 2 is 90 degrees in practice, but is not limited thereto. The tool joint 90 is disposed in the head housing 103c coaxially with the output shaft 23 of the air motor 20, so that the output shaft 23 of the air motor 20 can be connected in series with the tool joint 90, thereby driving the tool joint 90. Rotate.
以上實施例僅為表達了本發明的較佳實施方式,但並不能因此而理解為對本發明申請專利範圍的限制。因此,本發明應以申請專利範圍中限定的請求項內容為準。 The above embodiments are merely illustrative of preferred embodiments of the invention, but are not to be construed as limiting the scope of the invention. Therefore, the present invention should be based on the content of the claims defined in the scope of the patent application.
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