1259794 九、發明說明： 【發明所屬之技術領域】 特別是關於一種可變換外 «日月係、動工具有關 形之電動工具。 【先前技術】 按，習知以電池為雷沥令命a 10 15 201259794 IX. Description of the invention: [Technical field to which the invention pertains] In particular, it relates to a power tool that can transform the outer shape of the sun and the moon and the movable tool. [Prior Art] Press, the battery is used for the Leili to kill a 10 15 20
起子或手持電鑽等，如第十、六圖動釘搶、電動 結構包含-殼體6、—設於該殼體6:之驅動：：，其主要 結合於該殼體6上且與該驅崎置S電連電8 J 置8付以驅動-工具作動，如驅動—鑽頭轉動。％動衣 電動工具常被使用在各種不同的工作空間中， 不變之外形卻無法適合於各種空間，如第十七圖所U 電鑽Ε因其電池組件8因_騎Ε所在 纤 涉，而影響該電鑽Ε之工作進行。 丁 為了解決此-課題，目前所採用的方式是改變電池愈 殼體間之結合結構，使電池可以相差i 8 Q度的二種方向 結合於叙體上，使該電動工具具有可依需求變換之二種外 形，如第十八圖及第十九圖所示，藉以因應工作空間之需 求0 此一方式導致使用者結合與拆解電池與殼體之次數增 加，由於電池與殼體間之結合結構複雜，過多次數之拆卸 與結合殼體與電池，將導致其間之結合結構容易損毀而造 成該二者之結合不良或無法結合，特別是容易導致電池與 -4- 1259794 設於殼體内之驅動裝置的電連接不良。 除此之外，第十八圖及第十九圖所示電動工具僅能作 二種外形變換，並無法適用於各種工作空間。 5【發明内容】 有!皿於此本舍明之主要目的在於提供一種可變換外 形之笔動工具，其外形可作多種變換者。 本考X月之-人要目的在於提供一種可變外形之電動工 具，其電池與殼體間之結合狀態、以及其電池與驅動裝置 10間之電連接良好者。 〃用以達成上揭之發明目的，本發明所採取之技術係將 電動工八之设體分成一主殼體及一次殼體，該主殼體係用 以容置-驅動裝置，該次殼體用以連接一電池，且該次殼 體可以至少二種朝向固設於該主殼體上，藉此，該電動工 〃之外t可作至少三種變換，以適合於不同卫作空間之需 求0 【實施方式】 以下茲舉本發明較佳之實施例，並配合下列圖示詳 20細說明之；在下列圖示中： 第一圖係本發明第一實施例之部份結構分解圖。 ，一圖係第一圖所示實施例之部份構件結構圖。 第一圖係第一圖所示實施例之側視局部剖視圖。 第四圖係沿第三圖4一4線之剖視圖。 -5- 1259794 之側圖 第五〜七圖係分別為第—圖所示實施例在不同形 態下 ，八圖係本發明第二實施例之部份構件分解圖。 第二圖所示實施例之側視局部剖視圖。 f十圖係沿弟九圖10一10線之剖視圖。 態 下之〜十二圖係分別第人圖所示實施例在不同形 it三圖係本發明第三實施例之部份結構分解圖。 示^。四〜十五圖係分別為第十三圖所示實施例之作動 請爹閱第一〜四圖，本發明第一實 15 20 該殼體1包含有—主殼體10及-次殼體20。 该主殼體10係由二半殼體對接 =二略與該身部"呈90度角連接之手持部f2= 夕向耳及—第二凸耳14、以及一螺栓15。該手拄都^ 手料12之自㈣處具有―結合槽⑵^ 部12之内部心端開設-定位孔122連通該手持 交錯排列^ ^’且歧減122之孔虹形成有多數 13^4 出，其中斜持部12之外壁面上接近自由端處延伸 亥弟—凸耳13具有一穿孔⑶，該第二凸耳14 -6· 1259794 内則植設有一螺帽141。該螺栓15係穿經該第—几甘μ 〇斗13 之穿孔131並結合於該第二凸耳14内之螺帽i4l上。另外， 该手持部12上更具有一缺口 125位於該二凸耳13、ι4門 該次殼體20具有一身部21及一結合部22。該身部Θ21 5底部具有一結合構造211 ;該結合部22具有一自該身部幻 頂部向上延伸出之定位頸22卜以及一連結於該定位頸 頂部之擋止環222,且該定位頸221之頸壁上配合該定位孔 122之凹、凸部123、124形成有多數交錯排列之凹、凸部 223、224。該次殼體20係結合於該主殼體1〇上，1擋1 1〇環222位於該主殼體1〇之結合槽121中，且其定位頸I。 位於该定位孔122中；當旋緊該螺栓15，使該螺栓15之頭 碰迫該[凸耳13靠向該第二凸耳14導致該定位孔122 ，该定位頸221即受該定位孔122孔壁之壓迫，使 叙位孔122與該定位頸221之凹、凸部123、124、、 μ 2=交互卡合’而形成該主殼體1〇及該次殼體之定位； =鬆該螺㈣，使該第一凸耳13因彈性回復原來位置， 孔122即回復原尺寸而鬆離該定位頸221，該次殼體 20便可供轉動。 趣動衣置2主要包含有_馬達3q、—傳動齒輪組 mrT具夾頭32 —開關33及—組電源線34，其中，該 中，且兮輪組31絲設於社殼體1G之身部11 工Λ,、、、、 之輸出端連接該傳動齒輪組 31之輸入端； 二，i::、員”係自邊身部U内穿伸出該主殼體 10之前 /、係連接雜動齒組3丨之輸出端；關關33係設於 20 1259794 邊手持部12上；該組電源線34 —端經該開關33連接該馬 達30，另端穿入該次殼體20内部，並連接一組設於該次殼 體20之結合構造211處的第一導接端子35。 该電池組件3包含有一電池殼體4〇、以及多數固定設 5置於該電池殼體40内部且相互串聯之電池41，該電池殼體 40之頂部具有/結合構造401，係用以與該次殼體2〇之結 合構造211相結合，使該電池組件3可結合於該次殼體2〇 上；該電池殼體40之結合構造401處設有_組第二導接端 子42，係連接該專電池41之電極，且用以在該電池組件3 10結合於該次殼體20上時與該次殼體2〇上之第一導接端子 結合35，使該等電池41之電源得以經過該開關22供應 該馬達30。 15 20 上藉由上述電動工具A之結構，將該電池組件3結合於 該=殼體2〇上，使該第一、二導接端子％、π相結合， 如第五圖所示，該電池組件3之電池4丨便可供應電源^亥 驅動裝置2。當使用者需依不同之卫作空間而改變該電動二 具A之外形時，可旋鬆該螺栓15並轉動該電池組件3及註 人/V又體20 ’使該_人叙體20及該電池組件3產生相對於哕主 殼體10之轉動，卩改變該電動工具A之外形，如第六^七 圖所示：再將該螺检丨5旋緊，使該:欠殼體μ與 此，輯動工具A可相於= 請參閱第八〜十圖，本發明第二實施例之電動工 其與上述實施例相同地包含有—殼體4一驅動裝置及、—電 -8- 1259794 池組件，且該殼體4與上述實施例同樣地包 主 50及一次殼體6〇 ;其中，該彳g動f晋 一 ㈣置_池組件皆與上 处貝施例所述者相同，在此便不加贅述。 該主殼體50與上述實施例相同地 手持部52,該手持部52之㈣似右$身4 51及一 于丨之自由鈿具有一結合凸部521，該 、=凸部切之周壁上具有一螺紋522;該手持部52内形 成有-斷面呈橢_之容置室523’賊容置室 15 形献該結合凸部521之端面上。另外，該: 動衣置，、有-弟-雙向導接端子525設於該容置室内。 該次殼體60具有一殼身61及一結合螺環62。該 1具有-身部611、斷面呈搞圓形之結合柱612、以及—八 別連…U主612與該身部611且斷面呈圓形之頸 另外該、纟σ合柱612之頂面具有一可與該第一雙向 =端子525呈導接結合之第二雙向導接端子614。該結 % 62中央部位具有一結合槽62卜一貫穿該結合槽必样 底之牙孔622 ’且该結合槽621之槽壁上具有一螺紋奶； 結合螺壤62係、以其穿孔611 #設於該次殼體6〇之頸部咕 上0 藉由上述主、次殼體5〇、6〇之結構，該次殼體6 2〇以其結合柱612自該主殼體50之開σ 524插置入該容置 523 ’使该第一、二雙向導接端子525、似呈導接結合， 再將該結合螺環62之螺紋623結合於該結合凸部切 紋522上，使該主、次殼體5〇、6〇呈緊密結合，如第二 圖所示。 •9- 1259794 當使用者需要改變該電動工具B之外形時，僅需旋鬆 该結合螺環62使其離開該結合凸部521，並將該結合柱612 抽出該容置室523，再將該次殼體60連同該電池組件水平 地旋轉180度後，將該結合柱612插置入該容置室523使 5該第一、二雙向導接端子525、614結合，並螺鎖該結合螺 環62與該結合凸部521，便完成改變該電動工具外形之程 序，如第十二圖所示。如此，本實施例之電動工具B可作 二種外形變換。 請參閱第十三〜十五圖，該等圖示分別為本發明第三 ⑺實施例之電動工具C的部份結構分解及作動圖。該電動工 具C與上述實施例相同地包含有一殼體7、一驅動裝置及 一電池組件，且該殼體7與上述實施例同樣地包含有一主 冗又體70及一次殼體80 ;其中，該驅動裝置及該電池組件皆 與上述實施例所述者相同，在此便不加贅述。 15 该主殼體與上述實施例相同地具有一身部71及一 手持部72。該手持部72之内壁接近該手持部72之自由端 處具有二依預定間距平行設置之結合凸環721，且該手持部 72之内壁上更形成一容置槽722，該容置槽722之槽底開 設一穿孔723貫通該手持部72之内部與外界；另設一定位 20閂724與一彈簧726，該定位閂724係置於該容置槽722 中’且可於該容置槽722中沿該容置槽722往復滑；又， 該定位閂724具有一凸塊725自該穿孔723穿出；該彈菩 726係設於該定位閂724與該容置槽722間，用以頂抵該定 位閂724，使該定位閂724維持在一固定之位置上。另外， 1259794 該手持部72之自由端端面上更開設一開口 727連通該手持 部72之内部與外界。 該次殼體80具有一身部81及一結合部82。該身部8ι 底部具有-結合構造811 ;該結合部82係為一自該身部81 5頂部向上延伸出之圓柱，其周壁上配合該手持部72之结人 凸環瓜而凹設二結合凹槽82卜其頂面上凸設有一擔二 822、以及沿周緣等距凹設有四個定位凹槽823。另外，$ 次殼體8G上具有-穿孔83貫㈣結合部⑽頂面及該^ 81底面。 10 該次殼體80之結合凹槽821與該主殼體70之結合凸 環721相結合，而使該次殼體8〇結合於該主殼體7〇上， 且使該次殼體80可相對於該主殼體轉動9〇，該擔柱您 則用以在轉動過程中與次殼體之容置槽722槽壁相抵觸， 以限制該次殼體80之轉動幅度無法超過往復36〇度。 15 該定位閃724之底端因該定位閃724之頂部受該彈簧 726之抵頂的原故而保持抵頂在該結合部”之頂面上，在 s亥次殼體轉80轉動之過程中，當該四定位凹槽823之任一 移至該定位f-口24之底端下方時，該定位柱問724之底部 將因其頂部受該彈簧726抵頂之故而卡入該定位凹槽823 中，而鎖掣該次殼體80,使其無法續轉動而達成該主殼體 7〇與該次殼體80間之定位效果；如第十四圖所示。欲解除 該主殼體70與該次殼體80間之定位效果時’只須用手撥 動該定位閃724之凸塊725，使該定位閃m沿該容置槽 722向上移動，而使該定位閃724之底部離開騎在之^ -11- 1259794 凹槽823，則該次殼體80又可供繼續轉動；如第十五圖所 示。藉此，該電動工具便可作四種外形變化。 藉由以上所述可知，本發明之技術重點在於：本發明 所揭電動工具之殼體，係由一主殼體、以及一可在至少二 5 種不同朝向之狀態下結合於該主殼體上之次殼體所構成， 藉以可達到改變該電動工具之整體外形，以使該電動工具 適合於多種不同之工作空間，且此種設計可避免前述習用 電動工具因電池組件之經常拆裝而導致電源接觸不良或電 池組件結合不良之缺點。 10 1259794 【圖示簡單說明】 第一圖係本發明第一實施例之部份結構分解圖。 第二圖係第一圖所示實施例之部份構件結構圖。 5 第三圖係第一圖所示實施例之側視局部剖視圖。 第四圖係沿第三圖4—4線之剖視圖。 第五〜七圖係分別為第一圖所示實施例在不同形態下 之側圖。 第八圖係本發明第二實施例之部份構件分解圖。 ίο 第九圖係第八圖所示實施例之側視局部剖視圖。 第十圖係沿第九圖10—10線之剖視圖。 第十一〜十二圖係分別第八圖所示實施例在不同形態 下之側圖。 第十三圖係本發明第三實施例之部份結構分解圖。 15 第十四〜十五圖係分別為第十三圖所示實施例之作動 示意圖。 第十六圖係一種習知電動工具之結構示意圖。 第十七圖係第十六圖所示習知電動工具之使用示意 圖。 20 第十八〜十九圖係分別為另一種習知電動工具之二種 不同使用狀態示意圖。 1259794 【主要元件符號說明】 第一實施例 電動工具A 殼體1 驅動裝置2 電池組件3 5 主殼體10 身部11 手持部12 結合槽121 定位孔122 凹、凸部123、124 缺口 125 第一凸耳13 穿孔131 10 第二凸耳14 螺帽141 螺栓15 次殼體20 身部21 結合構造211 結合部22 定位頸221 檔止環222 15 凹、凸部223、224 馬達30 傳動齒輪組31 工具夾頭32 開關33 電源線34 第一導接端子35 電池殼體40 結合構造401 20 電池41 第二導接端子42 第二實施例 電動工具B 殼體4 -14- 1259794 主殼體50 手持部52 螺紋522 開口 524 5 次殼體60 身部611 頸部613 結合螺環62 穿孔622 10 第三實施例 電動工具C 殼體7 主殼體70 15 手持部72 容置槽722 定位閂724 彈簧726 次殼體80 2〇 結合構造811 結合凹槽821 定位凹槽823 身部51 結合凸部521 容置室523 第一雙向導接端子525 殼身61 結合柱612 第二雙向導接端子614 結合槽621 鲁 螺紋623 身部71 結合凸環721 穿孔723 凸塊725 開口 727 身部81 結合部82 擋柱822 穿孔83 15-a screwdriver or a hand-held electric drill or the like, such as the tenth and sixth figures of the smashing, the electric structure comprising - the housing 6, the driving of the housing 6:: which is mainly coupled to the housing 6 and the driving Saki Electric S 8 8 set 8 to drive - tool action, such as drive - bit rotation. %Motoring power tools are often used in a variety of different workspaces, but the shape is not suitable for a variety of spaces, such as the seven-figure U-power drill, because its battery assembly 8 due to _ riding in the fiber, The work affecting the electric drill collar is carried out. In order to solve this problem, the current method is to change the combination structure of the battery to the shell, so that the battery can be combined with the two directions of i 8 Q degrees, so that the power tool can be changed according to requirements. The two types of shapes, as shown in Figures 18 and 19, are used to increase the number of times the user combines and disassembles the battery and the housing in response to the demand of the workspace. The combination structure is complicated, and the removal and combination of the casing and the battery in a too many times will cause the joint structure therebetween to be easily damaged, resulting in poor combination or inability to combine the two, especially in the case that the battery and the -4- 1259794 are disposed in the casing. The electrical connection of the drive unit is poor. In addition, the power tools shown in Figures 18 and 19 can only be used for two shape changes and cannot be applied to various workspaces. 5 [Summary of the Invention] The main purpose of this dish is to provide a pen-moving tool that can transform the shape, and its shape can be used for various transformations. The purpose of this test is to provide a variable-profile electric tool with a good connection between the battery and the housing, and a good electrical connection between the battery and the drive unit 10. In order to achieve the object of the invention, the technology adopted by the present invention divides the electric machine into a main casing and a primary casing, which is used for accommodating the driving device. For connecting a battery, and the secondary housing can be fixed to the main housing in at least two orientations, whereby the electric workbench can be modified by at least three to suit the needs of different service spaces. [Embodiment] Hereinafter, preferred embodiments of the present invention will be described with reference to the following detailed description of the drawings; in the following drawings: FIG. 1 is a partial exploded view of the first embodiment of the present invention. Figure 1 is a partial structural view of the embodiment shown in the first figure. The first figure is a side elevational partial cross-sectional view of the embodiment shown in the first figure. The fourth figure is a cross-sectional view taken along line 4 - 4 of the third figure. -5 - 1259794 Side view The fifth to seventh figures are respectively an embodiment of the first embodiment shown in a different embodiment, and the eighth embodiment is an exploded view of a part of the second embodiment of the present invention. A side elevational cross-sectional view of the embodiment of the second embodiment. F10 is a cross-sectional view taken along line 10-10 of the figure of the younger brother. In the second embodiment, the embodiment shown in the first figure is a partial exploded view of the third embodiment of the present invention. Show ^. The four to fifteen figures are respectively the actions of the embodiment shown in the thirteenth figure. Please refer to the first to fourth figures. The first embodiment of the present invention 15 20 includes the main casing 10 and the secondary casing. 20. The main casing 10 is butt-joined by two halves of the housing. The hand-held portion f2=the ear and the second lug 14 and a bolt 15 are connected to the body at a 90 degree angle. The handcuffs have the majority of the handles 12 from the (four) portion with the "joining groove (2) ^ the inner end of the portion 12 - the positioning hole 122 is connected to the hand-staggered arrangement ^ ^ ' and the hole 122 of the difference 122 is formed with a majority 13 ^ 4 Out, wherein the outer wall surface of the diagonal portion 12 extends near the free end, the lug 13 has a through hole (3), and the second lug 14 -6 · 1259794 is provided with a nut 141. The bolt 15 passes through the through hole 131 of the first gamma hopper 13 and is coupled to the nut i4l in the second lug 14. In addition, the hand-held portion 12 further has a notch 125 at the two lugs 13, and the door 4 has a body portion 21 and a joint portion 22. The bottom of the body Θ 21 5 has a joint structure 211; the joint portion 22 has a positioning neck 22 extending upward from the phantom top of the body and a stop ring 222 coupled to the top of the positioning neck, and the positioning neck The concave and convex portions 123 and 124 of the neck wall of the 221 which are fitted with the positioning holes 122 are formed with a plurality of staggered concave and convex portions 223 and 224. The secondary housing 20 is coupled to the main housing 1 ,, and the 1st 1 1 1 〇 ring 222 is located in the coupling groove 121 of the main housing 1 , and positions the neck I. Located in the positioning hole 122; when the bolt 15 is tightened, the head of the bolt 15 is pressed against the [the lug 13 against the second lug 14 to cause the positioning hole 122, and the positioning neck 221 is received by the positioning hole The pressure of the 122-hole wall is such that the retaining hole 122 and the concave, convex portion 123, 124, and μ 2 of the positioning neck 221 are alternately engaged to form the main casing 1 and the positioning of the secondary casing; The screw (4) causes the first lug 13 to return to the original position due to the elasticity, and the hole 122 returns to the original size and is released from the positioning neck 221, and the secondary housing 20 is rotatable. The fun clothes 2 mainly includes a motor 3q, a transmission gear set mrT with a chuck 32, a switch 33 and a set of power lines 34, wherein the middle wheel set 31 is provided in the body of the housing 1G. The output end of the working portion of the portion 11 is connected to the input end of the transmission gear set 31. Second, the i::, "member" is inserted from the side body U before extending out of the main housing 10 The output end of the miscellaneous tooth set 3丨; the closing 33 is disposed on the hand side 12 of the 20 1259794 side; the set of power lines 34 are connected to the motor 30 via the switch 33, and the other end penetrates into the interior of the secondary housing 20. And connecting a set of first guiding terminals 35 disposed at the joint structure 211 of the sub-housing 20. The battery assembly 3 includes a battery case 4〇, and a plurality of fixing devices 5 are disposed inside the battery case 40. And a battery 41 connected in series with each other, the top of the battery case 40 has a/bonding structure 401 for combining with the bonding structure 211 of the secondary housing 2, so that the battery assembly 3 can be coupled to the secondary housing 2 The battery assembly 40 is provided with a second conductive terminal 42 connected to the electrode of the battery 41 for use in When the battery assembly 3 10 is coupled to the secondary housing 20, it is coupled 35 with the first conductive terminal on the secondary housing 2, so that the power of the batteries 41 can be supplied to the motor 30 via the switch 22. 15 20 The battery assembly 3 is coupled to the housing 2 by the structure of the power tool A, and the first and second conductive terminals % and π are combined. As shown in FIG. 5, the battery assembly 3 is assembled. The battery can be supplied to the power supply unit 2. When the user needs to change the shape of the electric two-piece A according to different toilet spaces, the bolt 15 can be loosened and the battery assembly 3 can be rotated and injected. /V body 20' causes the _person body 20 and the battery assembly 3 to rotate relative to the cymbal main casing 10, and changes the shape of the power tool A, as shown in the sixth figure: The screw inspection 丨 5 is tightened so that the lower casing μ and the squeegee tool A can be compared with each other. Referring to the eighth to tenth drawings, the electric motor of the second embodiment of the present invention includes the same as the above embodiment. There is a housing 4 - a driving device and a - 8 - 1259794 pool assembly, and the housing 4 is the same as the above embodiment 50 and one The casing 6 is the same as the one described in the above example, and the details are not described herein. The main casing 50 is the same as the above embodiment. 52, the (4) of the hand-held portion 52 is similar to the right body 4 51 and a free 钿 of the 钿 has a coupling convex portion 521, the convex portion of the convex portion has a thread 522; the hand portion 52 is formed with - The accommodating chamber 523 of the ellipsoidal section is formed on the end surface of the merging portion 521. In addition, the ergonomically placed, vestibular-dual-guided terminal 525 is disposed in the accommodating chamber indoor. The secondary housing 60 has a housing 61 and a coupling screw 62. The 1 has a body portion 611, a combined column 612 having a circular cross section, and an eight-piece U-head 612 and a neck portion of the body portion 611 having a circular cross section. The top mask has a second dual-guide terminal 614 that can be inductively coupled to the first bidirectional=terminal 525. The central portion of the junction % 62 has a coupling groove 62 extending through the hole 622 ′ of the coupling groove and having a threaded milk on the groove wall of the coupling groove 621; The upper casing 6 is disposed on the neck portion of the secondary casing 6 by the above-mentioned main and secondary casings 5〇, 6〇, and the secondary casing 6 2〇 is opened by the coupling column 612 from the main casing 50. The σ 524 is inserted into the receiving portion 523 ′, so that the first and second double-contact terminals 525 are connected in a conductive manner, and the thread 623 of the combined screw 62 is coupled to the combined convex portion 522. The primary and secondary housings 5〇, 6〇 are tightly coupled, as shown in the second figure. • 9- 1259794 When the user needs to change the shape of the power tool B, it is only necessary to loosen the coupling screw 62 away from the coupling protrusion 521, and pull the binding post 612 out of the accommodation chamber 523, and then After the secondary housing 60 is rotated 180 degrees horizontally with the battery assembly, the binding post 612 is inserted into the receiving chamber 523 to join the first and second dual-contact terminals 525, 614, and the combination is screwed. The screw 62 and the coupling protrusion 521 complete the procedure for changing the shape of the power tool, as shown in Fig. 12. Thus, the power tool B of the present embodiment can be changed in two shapes. Please refer to the thirteenth to fifteenth drawings, which are respectively a partial structural decomposition and an operation diagram of the electric power tool C according to the third (7) embodiment of the present invention. The power tool C includes a housing 7, a driving device and a battery assembly, as in the above embodiment, and the housing 7 includes a main body 70 and a primary housing 80 as in the above embodiment. The driving device and the battery assembly are the same as those described in the above embodiments, and are not described herein. The main casing has a body portion 71 and a hand portion 72 as in the above embodiment. The inner wall of the hand-held portion 72 has a coupling collar 721 disposed at a predetermined distance from the free end of the hand-held portion 72. The inner wall of the hand-held portion 72 further defines a receiving groove 722. A groove 723 is formed in the bottom of the slot to extend through the interior of the hand-held portion 72 and the outside. A positioning member 20 is attached to the latch 724 and a spring 726. The positioning latch 724 is disposed in the receiving slot 722 and can be received in the receiving slot 722. The locating latch 724 has a bump 725 extending from the through hole 723. The stalk 726 is disposed between the positioning latch 724 and the receiving slot 722 for topping. The positioning latch 724 is urged to maintain the positioning latch 724 in a fixed position. In addition, an opening 727 is formed on the free end surface of the hand portion 72 to communicate with the inside of the hand portion 72 and the outside. The secondary housing 80 has a body portion 81 and a joint portion 82. The bottom portion of the body 8i has a -bonding structure 811; the joint portion 82 is a cylinder extending upward from the top of the body portion 81 5 , and the peripheral wall thereof is fitted with the knotted convex ring melon of the hand portion 72 and is recessed and combined. The groove 82 has a pair of shoulders 822 protruding from the top surface thereof and four positioning grooves 823 recessed along the circumference. In addition, the sub-housing 8G has a perforation 83 (four) joint portion (10) top surface and the bottom surface. 10, the coupling groove 821 of the secondary housing 80 is combined with the coupling convex ring 721 of the main housing 70, so that the secondary housing 8〇 is coupled to the main housing 7〇, and the secondary housing 80 is It can be rotated 9 相对 relative to the main casing, and the struts are used to interfere with the groove wall of the accommodating groove 722 of the secondary casing during the rotation to limit the rotation of the secondary casing 80 to exceed the reciprocating 36 〇度. 15 The bottom end of the positioning flash 724 is held against the top surface of the joint portion due to the top of the positioning flash 724 being abutted by the spring 726, during the rotation of the casing When any one of the four positioning recesses 823 moves below the bottom end of the positioning f-port 24, the bottom of the positioning post 724 will snap into the positioning recess due to the top of the positioning post 724 being abutted by the spring 726. In 823, the secondary housing 80 is locked so that it cannot rotate continuously to achieve the positioning effect between the main housing 7 and the secondary housing 80; as shown in Fig. 14. To release the main housing When the positioning effect between the 70 and the sub-housing 80 is used, the bump 725 of the positioning flash 724 is only required to be moved by hand, so that the positioning flash m moves upward along the accommodating groove 722, and the bottom of the positioning flash 724 is made. After leaving the groove 823 of the ^ -11- 1259794, the secondary housing 80 can be further rotated; as shown in the fifteenth figure. Thereby, the power tool can make four shape changes. It can be seen that the technical focus of the present invention is that the housing of the power tool disclosed in the present invention is composed of a main housing and one at least two The sub-housing combined with the main casing is formed in different orientations, so that the overall shape of the electric tool can be changed to make the electric tool suitable for a plurality of different working spaces, and the design can avoid the foregoing Conventional power tools have the disadvantages of poor power supply contact or poor battery assembly due to frequent assembly and disassembly of battery components. 10 1259794 [Simplified illustration] The first figure is a partial exploded view of the first embodiment of the present invention. The figure is a partial structural view of the embodiment shown in the first figure. Fig. 5 is a side elevational cross-sectional view of the embodiment shown in Fig. 1. The fourth figure is a cross-sectional view taken along line 4-4 of the third figure. 5 to 7 are respectively side views of the embodiment shown in the first figure in different forms. The eighth figure is an exploded view of a part of the second embodiment of the present invention. ίο The ninth figure is the implementation shown in the eighth figure. 10 is a cross-sectional view taken along line 10-10 of the ninth figure. The eleventh to twelfth drawings are side views of the embodiment shown in the eighth figure in different forms. The third embodiment of the present invention Partial structural exploded view of the example. 15 The fourteenth to fifteenth drawings are respectively schematic diagrams of the operation of the embodiment shown in Fig. 13. Fig. 16 is a schematic structural view of a conventional electric tool. Fig. 16 is a schematic view showing the use of the conventional electric power tool. 20 The eighteenth to nineteenth drawings are respectively schematic diagrams of two different use states of another conventional electric power tool. 1259794 [Description of main component symbols] First embodiment Power tool A Housing 1 Drive unit 2 Battery unit 3 5 Main housing 10 Body 11 Handpiece 12 Bonding groove 121 Positioning hole 122 Concave, convex 123, 124 Notch 125 First lug 13 Perforation 131 10 Second lug 14 Nuts 141 Bolts 15 times Housing 20 Body 21 Bonding structure 211 Joint 22 Positioning neck 221 Stop ring 222 15 Concave, convex 223, 224 Motor 30 Transmission gear set 31 Tool chuck 32 Switch 33 Power cord 34 A conductive terminal 35 battery case 40 combined structure 401 20 battery 41 second conductive terminal 42 second embodiment power tool B housing 4 - 14 - 1259794 main housing 50 hand portion 52 thread 522 opening 524 5 Secondary housing 60 body 611 neck 613 combined with screw 62 perforation 622 10 third embodiment power tool C housing 7 main housing 70 15 hand portion 72 receiving slot 722 positioning latch 724 spring 726 secondary housing 80 2〇 Bonding structure 811 joint groove 821 positioning groove 823 body 51 joint convex portion 521 accommodation chamber 523 first double-guide terminal 525 shell body 61 joint column 612 second double-guide terminal 614 joint groove 621 lug 623 body 71 joint collar 721 perforation 723 lug 725 opening 727 body 81 joint 82 retaining post 822 perforation 83 15-