201249028 六、發明說明： 【發明所屬之技術領域】 本發明係關於-種組合式插座，特別是一種可提供使 用者依照需求而可任意串接使用之組合式插座。 【先前技術1 充插孔ή、、第1曰圖所不’習知的延長插座7係具有數個擴 插座7另！;ΓΓ般電器用品之插頭電性連接，該延長 器用品所需之^力。亚可透軸延長插座7供應各電 ，白知延長插座7之體積以及該擴充插孔η之數量 的产:下因Γ在只需要使用少數一、二個擴充插孔71 用:擴充插法縮減該延長插座7之體積。再者，未使 成造成短I。又1H易堆積灰塵’且可能在日後使用時造 成相同方向且呈=延長插座7之各擴充插孔71係形 孔之插頭排列’因此，當欲插接於該擴充插 遮蔽相鄰夕 變壓器之插頭型式時，該變壓器往往會 減少。廣充插孔7卜導致可使狀擴充插孔？1數量 請參，昭第） 式安全延長 圖’係中華民國公告第383944號「組合 有一基座81，」=利案，該專利案揭示一組合式插座8具 一插頭812，另基山座81 一端藉由一電源線811電性連接 擴充插座82 ^則可提供數個擴充插座82串接，各該 均设有擴充插孔821，該基座81與擴充插 201249028 座82之間及各相鄰的擴充插座⑽之間，係利料尾槽型 式之連結部83互相串接並呈電性連接。 該習知組合式插座8之擴充插座82係可任意串接组 合，，可依照使用者的需求而縮減或擴充該擴充插座82 j置。如此，雖然可以解決前述f知延長插座7無法縮 ，體積以及未使用之擴充插孔71容易堆積灰塵等缺點。但 疋，此習知組合式插座8之相鄰擴充插孔821仍然為等間 ，排列因此，當插接於該擴充插孔821之插頭為附有變 聖器之插頭型式時’仍然存在有變塵器會遮蔽相鄰擴充插 孔、821之缺點。而且’該習知組合式插座8之連結部83 無法與-般電源插孔或是一般電器用品之插頭通用，所以 未使用，擴充插座821只能閒置，無法提供其他用途。 ”請荟照第3圖，係中華民國公告第Μ3237#號「串接 式走轉插座」專利案，該專利案揭示一組合式插座9之主 插座91係具有數個插孔91卜且該主插座91另藉由-電 =線912電性連接一插頭913 ’該主插座％可提供數個串 座92串接’各該串接插座92上均設有—導電插頭921 及數個擴充插孔922，該導電插頭921可插接於該主插座 插孔911或其他擴充插S 92之插孔922,使該主插座 91及各該擴充插座92之間呈電性連接。 該習知組合式插座9之導電插座921係設置於一旋轉 座92U ’使該導電插頭921可相對該擴充插座％轉動， 進而1调f各該擴充插座92之插孔922形成錯位，以避免 ^有:壓&之插頭遮蔽相鄰之插1 922。如此，雖然可以 解夬月〕自知結構之缺點，惟該習知組合式插座9之旋 201249028 轉座923除了本身必須具備旋轉功能外，仍必須兼顧該旋 轉座923之旋轉定位以及該導電插頭921之電性連接功能 ’使得該串接插座92本身結構較為複雜，造成製造困難度 尚、生產成本高且較容易損壞。 【發明内容】 本發明所述之插孔，係指可供習知各種形狀之插頭之 插腳插接，且該插孔及插腳係可以為二腳或三腳型式，係 熟習該項技術人士可以理解者。 本發明所述之插孔呈長方形孔時，該插孔之長邊稱為 縱長向，係熟習該項技術人士可以理解者。 本杳明之目的係提供一種組合式插座，係可以供具有 變壓器之插頭使用之足夠空間，使該變壓器不會遮蔽相鄰 之擴充插孔者。 刀本發明之另一目的係提供一種組合式插座，係可以依 知、使用者的需求而任意縮減或擴充該插孔數量者。 本發明之再一目的係提供一種組合式插座，該延伸插 座、擴充插座係可單獨使用，以提供多樣化之彈性使用 途者。 本發明之又—目的储供—種組合式插座，該相鄰杰 座之插孔縱長向係具有夾肖，#附錢壓器之插頭插設方 該第二擴緖座之擴充觀時，可㈣免該麵器遮㈣ 鄰擴充插孔者。 ’該插座構 本發明之另一目的係提供一種組合式插座 造簡單、製造容易，且可以降低生產成本者。 201249028 根據本發明一種組合式插座，係包含：一延伸插座， 一端電性連接一插頭，另一端設—續接插孔，且該延伸插 座的二端之間具有一插設面，該插設面設一擴充插孔；一 第一擴充插座，一端設一續接插頭，另一端設一續接插孔 ，該第一擴充插座的二端之間具有一插設面，該插設面設 一擴充插孔，該第一擴充插座之擴充插孔的縱長向與延伸 插座之擴充插孔的縱長向成一夾角，該夾角介於45。〜135 ，一第二擴充插座，一端設一續接插頭，另一端設一續接 插孔，該第二擴充插座的二端之間具有一插設面，該插設 面設一擴充插孔，且該擴充插孔一侧形成有延伸部。 本發明之組合式插座，其中該第二擴充插座之擴充插 孔的縱長向與第一擴充插座之擴充插孔的縱長向係可以形 成一夾角，該夾角介於45。〜135。。 本發明之組合式插座，其中該第二擴充插座之插設面 面積係可以大於第一擴充插座之插設面面積。 本發明之組合式插座，其中該夾角係可以為9〇。。 本發明之組合式插座，其中該延伸插座係可以設有一 開關。 【實施方式】 為讓本發明之上述及其他目的、特徵及優點能更明顯 易懂，下文特舉本發明之較佳實施例，並配合所附圖式， 作詳細說明如下： 請參照第4圖所示，本發明之組合式插座係包含有一 延伸插座1、一第一擴充插座2及一第二擴充插座3，其中 201249028 該，伸插座！可電性連接一電源插孔，該第一擴充插座2 及弟二擴充插座3可串接並電性連接該延伸插座卜 該延伸插座1具有呈相對之二續接端la、ib，其 續接端ia係藉由一電源線u電性連接一插頭Η。該 插座1之另—續接端lb設有—續接減^，該續接 1口3可提供第—擴充插座2、第二擴充插座3或—般電 扣之插碩f性連接。該延伸插座丨之二續接端h、化之間 具有至少-插設面14，該插設面14設有—擴充插孔^ 该擴充插孔15可以提供—般電器用品或其他延伸插座工 之插頭12電性連接。該插設面14可另設置—開關i6，在 :拔取插頭12的情況下，藉由該Μ 16之切換，可以使 ，接插孔13及擴充插孔15呈斷電。 該第-擴充插座2具有呈相對之二續接端、此，其 一績接端2a設有-續接插頭21，該續接插頭2i係可以 該續接插孔13中，使該電源插孔之電力可透過該延 :插^供應至該第-擴充插座2。該第—擴充插座2之 =績接端2b設有-續接插孔22，該翻f孔22可以提 充插座3或一般電器用品之插頭電性連接。該第 -擴二插座2之二續接端2a、2b之間具有至少一插設面 設面23設有-擴充魏24，該擴充插孔^可以 電器用品插頭電性連接，而且，該擴充插孔Μ 與該延伸插座1的擴充插孔15之縱長向形 成一爽角，該夹角介於45。〜135。，較佳為9〇。者。 =二擴充插座3.與該第—擴充插座2大致相同，該 弟-擴充插座3係具有二續接端3a、3b、續接插頭3卜續 201249028 接插孔32、插设面33及擴充插孔34等結構特徵，故不再 重覆贅述。其中，該第二擴充插座3之插設面33另具有一 延伸部35 ’該延伸部35係位於該擴充插孔34 一側，使得 該第二擴充插座3之插設面33面積大於該第一擴充插座2 之插设面23面積，所以，當插設於該擴充插孔34之插頭 係為附有變壓器之插頭型式時，該延伸部35可提供足夠容 納該變壓器之空間，可避免該變壓器遮蔽相鄰的其他擴充 插孔24。再者，該第二擴充插座3之擴充插孔％之縱長 向亦可以與第一擴充插座2的擴充插孔24之縱長向形成一 夹角’該夾角介於45。〜135。，較佳為90。者。 再參照第4及5圖所示’本發贱料’該延伸插座 1之頭12係可以插接於—電源插孔，該第—擴充插座2 之績接插頭21係、可以插設於該延伸插座i之續接插孔u ’該第二擴充插座3之續接插頭31係可以插設於該第一擴 充插座f之續接插孔22中，使該延伸插座卜第-擴充^ 座2及第二擴充插座3呈串接。當然，該串接順序並非以 此為限，該第-擴充插座2及第二擴充插座3亦可互換串 接，或者可依照使用者需求而增加該第―擴充難2及第 —擴充插座3之數量。 、麥照第5圖所示，本發明使用時，該擴充插孔15、 ^係各可供—般電器用品之插頭4電性連接，而且Ί ^用扣之铜5為附有變壓器之插翻式時，可 又於n亥第擴充插座2之擴充插孔24中，由於該第—揭 == 廣充插孔24縱長向與延伸插座1之擴充插孔’ 'D A角或9G度’如此，該變>1器之-部分係可 201249028 ♦ 凸出於該第—擴充插座2之插設面23,可以避免該變壓器 遮蔽相鄰的擴充插孔15、34。或者，該附有變壓器之插; 5亦可選擇插設於該第二擴充插座3之擴充插孔％，由於 該第二擴充插座3之插設面33形成有延料35，如此， 該延伸部35亦可以提供足夠容納該變壓器之空間，同樣可 達到避免該變壓器遮蔽相鄰的擴充插孔2 4之功效。 另外，本發明之組合式插座並不限制必須合併使用， 4延伸插座1、第—擴充插座2及第二擴充插座3亦可單 獨使用’以提供更多樣化之使用用途。如第6圖所示，當 該延伸插座1本身電源線n之長度不夠時，係可將二延; 插座1串接使用。又如第7圖所示，當在踏上預設之電源 插孔6為二孔型式，而電器用品之插頭4為三腳型式時， 係可利用s亥第一擴充插座2轉換插孔型·式。 本發明之組合式插座，由於該第一擴充插座電性連接 該延伸插座時，該第一擴充插座之插設面係接鄰該延伸插 座之插設面，且該第-擴充插座之擴充插孔的縱長向與該 =伸插座之擴充插孔的縱長向形成一夾角，所以當附有變 壓器之插頭插設於該第一擴充插座之擴充插孔時 ，該變壓 為部分可凸出於該第-擴充插座之插設面，可避免遮蔽 其他擴充插孔。或者，該第二擴充插座之插設面具有延伸 部’所以當附有變壓器之插頭插設於該第二擴充插座之擴 充插孔時，該延伸部可提供一容納該變壓器的空間，以避 免該變壓器遮蔽相鄰的擴充插孔之功效。 本發明之組合式插座，係可任意縮減或擴充該第一擴 充插座及第二擴充插座之_接數量及串持順序，本發明之 201249028 可以達到符合使用 組合式插座係具有更彈性之使用方式， 者需求之功效。 本發明之組合式㈣，&於相_ :成-夹角或垂直，或該第二擴充插座之插設面 = 當财變_之插獅設於該第二擴充插座之擴 充插孔時，相避免該懸錢孔之功效: 本發明之組合式插座，由於該插座構造簡I、势造六 易’本發明具有製造容狂生產成本較低之功效。ί 雖然本發明已利用上述較佳實施例揭示，然其並非用 以=定本發明，任何熟習此技藝者在不麟本發明之精神 和範圍之内，相對上述實施例進行各種更動與修改仍屬本 發明所保護之技術料，因此本發明之賴範圍當視後附 之申請專利範圍所界定者為準。 【圖式簡單說明】 第1圖：習知延伸插座之立體外觀圖。 第2圖：習知公告383944號「組合式安全延長線」之 立體分解圖。 第3圖：習知公告M323745號「串接式旋轉插座」之 立體分解圖。 第4圖：本發明之立體分解圖。 —11 — 201249028 ^ 第5圖：本發明之組合外觀及使用狀態圖。 第6圖：本發明利用二延伸插座串接之使用狀態圖。 第7圖：本發明利用第一擴充插座轉換插孔型式之使用 狀態圖。 【主要元件符號說明】 〔本發明〕 1 延伸插座 la 績接端 lb 續接端 11 電源線 12 插頭 13 續接插孔 14 插設面 15 擴充插孔 16 開關 2 第一擴充插座 2a 績接端 2b 續接端 21 續接插頭 22 績接插孔 23 插設面 24 擴充插孔 3 第二擴充插座 3a 績接端 3b 續接端 31 續接插頭 32 續接插孔 33 插設面 34 擴充插孔 35 延伸部 4 插頭 5 插頭 6 電源插孔 —12 — 201249028 〔習知〕 7 延長插座 71 擴充插孔 72 電源線 73 插頭 8 組合式插座 81 基座 811 電源線 812 插頭 82 擴充插座 821 擴充插孔 83 連結部 9 組合式插座 91 主插座 911 插孔 912 電源線 913 插頭 92 串接插座 921 導電插頭 922 擴充插孔 923 旋轉座 13201249028 VI. Description of the Invention: [Technical Field] The present invention relates to a modular jack, and more particularly to a modular jack that can be arbitrarily used in series by a user according to requirements. [Prior Art 1 Charging Jacks, and Figure 1 is not known] The extension socket 7 has several expansion sockets 7 and another! The electrical connection of the plug of the electrical appliance, the force required for the extender. The sub-transparent shaft extension socket 7 supplies each electric power, and the length of the expansion socket 7 and the number of the expansion socket η are produced by the following: only one or two expansion sockets 71 need to be used for the following: The method reduces the volume of the extension socket 7. Furthermore, it does not cause a short I. 1H is easy to accumulate dust' and may cause the same direction in the future use and is the extension of the plug socket of the expansion socket 71 of the extension socket 71. Therefore, when it is intended to be plugged into the expansion plug, the adjacent transformer is inserted. This type of transformer tends to decrease when the plug type is used. Can the wide-filled jack 7 cause the expansion jack? 1 quantity please refer to, Zhao Di) Safety extension diagram ' is the Republic of China Announcement No. 383944 "combination has a base 81," = profit case, the patent case reveals a modular socket 8 with a plug 812, another base mountain 81 One end of the expansion socket 82 is electrically connected to one end by a power cord 811, and a plurality of expansion sockets 82 are provided in series, each of which is provided with an expansion socket 821, and the base 81 and the expansion plug 201249028 block 82 and each phase Between the adjacent expansion sockets (10), the connection portions 83 of the tail groove type are electrically connected in series. The expansion socket 82 of the conventional modular jack 8 can be arbitrarily connected in series, and the expansion socket 82 can be reduced or expanded according to the needs of the user. In this way, it is possible to solve the above-mentioned problem that the extension socket 7 cannot be shrunk, and the volume and the unused expansion jack 71 are likely to accumulate dust. However, the adjacent expansion jack 821 of the conventional modular jack 8 is still an equal space, so that when the plug plugged into the expansion jack 821 is a plug type with a sacred device, there is still The dust filter will obscure the disadvantages of the adjacent expansion jacks and 821. Moreover, the joint portion 83 of the conventional modular jack 8 cannot be used in common with the general power jack or the plug of general electrical appliances, so that the expandable socket 821 can only be left unused and cannot be used for other purposes. "Please refer to Figure 3, which is the "Series-connected socket" patent case of the Republic of China Announcement No. 3237#, which discloses that the main socket 91 of a modular socket 9 has a plurality of jacks 91 and The main socket 91 is electrically connected to a plug 913 by an electric=wire 912. The main socket % can provide a plurality of serial blocks 92 connected in series. Each of the serial sockets 92 is provided with a conductive plug 921 and a plurality of expansions. The socket 922, the conductive plug 921 can be plugged into the main socket 911 or the socket 922 of the other expansion slot S 92, so that the main socket 91 and each of the expansion sockets 92 are electrically connected. The conductive socket 921 of the conventional modular socket 9 is disposed on a rotating base 92U' such that the conductive plug 921 can be rotated relative to the expansion socket, and the socket 922 of each expansion socket 92 is misaligned to avoid ^ There is: the plug of the pressure & shields the adjacent plug 1 922. In this way, although the shortcomings of the self-knowledge structure can be solved, the conventional modular jack 9 spin 201249028 swivel 923 must have the rotation function itself, and must also take into account the rotational positioning of the swivel mount 923 and the conductive plug. The electrical connection function of the 921 makes the structure of the serial connection socket 92 relatively complicated, resulting in manufacturing difficulty, high production cost and easy damage. SUMMARY OF THE INVENTION The jack of the present invention refers to a pin insertion of a plug of various shapes, and the jack and the pin can be of a two-legged or three-legged type, which can be used by those skilled in the art. Understander. When the jack of the present invention has a rectangular hole, the long side of the jack is referred to as a longitudinal direction, which is understood by those skilled in the art. It is an object of the present invention to provide a modular jack that provides sufficient space for a plug having a transformer so that the transformer does not obscure adjacent jacks. Another object of the present invention is to provide a modular jack that can be arbitrarily reduced or expanded by the user's needs. Still another object of the present invention is to provide a modular jack that can be used alone to provide a variety of flexible use. The utility model further relates to a storage and supply type combination socket, wherein the adjacent longitudinal direction of the jack of the jade seat has a clip, and the plug of the money emulsor is inserted into the plug of the second expander. , (4) Free of the face shield (four) adjacent expansion jack. Another object of the present invention is to provide a modular jack that is simple to manufacture, easy to manufacture, and can reduce production costs. 201249028 A modular socket according to the present invention comprises: an extension socket, one end is electrically connected to a plug, and the other end is provided with a continuous insertion socket, and an insertion surface is arranged between the two ends of the extension socket, the insertion An expansion jack is disposed on the surface; a first expansion socket has a continuous plug at one end and a continuous jack at the other end, and an insertion surface is disposed between the two ends of the first expansion socket, and the insertion surface is provided An expansion jack, the length of the expansion jack of the first expansion socket is at an angle to the longitudinal direction of the expansion jack of the extension socket, and the angle is between 45 degrees. ～135, a second expansion socket, one end is provided with a continuation plug, and the other end is provided with a continuation jack, the second expansion socket has a plugging surface between the two ends, and the plugging surface is provided with an expansion jack And an extension portion is formed on one side of the expansion jack. In the modular jack of the present invention, the longitudinal direction of the expansion jack of the second expansion socket may form an angle with the longitudinal direction of the expansion jack of the first expansion socket, the angle being 45. ~135. . In the modular jack of the present invention, the insertion area of the second expansion socket may be larger than the insertion surface area of the first expansion socket. The modular jack of the present invention, wherein the angle can be 9 turns. . The modular jack of the present invention, wherein the extension socket can be provided with a switch. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more <RTIgt; As shown in the figure, the modular socket of the present invention comprises an extension socket 1, a first expansion socket 2 and a second expansion socket 3, wherein 201249028, the extension socket! The power socket can be electrically connected to the power socket. The first expansion socket 2 and the second expansion socket 3 can be connected in series and electrically connected to the extension socket. The extension socket 1 has two opposite ends la, ib, and the continuation thereof. The terminal ia is electrically connected to a plug by a power line u. The other end of the socket 1 is provided with a continuous connection, and the continuous connection 1 can provide a first expansion socket 2, a second expansion socket 3 or a general-purpose socket. The extension socket 丨2 has a at least-insertion surface 14 between the two ends, and the insertion surface 14 is provided with an expansion socket. The expansion socket 15 can provide general electrical appliances or other extension sockets. The plug 12 is electrically connected. The insertion surface 14 can be additionally provided with a switch i6. In the case of the plug 12 being removed, the socket 13 and the expansion jack 15 can be powered off by switching the cymbal 16. The first expansion socket 2 has two opposite ends, and the first connection end 2a is provided with a continuation plug 21, and the continuation plug 2i can be spliced into the socket 13, so that the power plug The power of the hole can be supplied to the first expansion socket 2 through the extension: plug. The first expansion socket 2 is provided with a continuation socket 22, and the flip hole 22 can be electrically connected to the socket 3 or the plug of a general electrical appliance. The second extension socket 2 of the second expansion socket 2 has at least one insertion surface 23 and is provided with an expansion Wei 24, which can be electrically connected to the electrical appliance plug, and the expansion The jack 形成 forms a cool angle with the longitudinal direction of the expansion jack 15 of the extension socket 1, and the included angle is 45. ~135. Preferably, it is 9 inches. By. = two expansion sockets 3. substantially the same as the first expansion socket 2, the brother-expansion socket 3 has two splicing ends 3a, 3b, a splicing plug 3 continuation 201249028 jack 32, plug-in surface 33 and expansion The structural features such as the jack 34 are not repeated here. The insertion surface 33 of the second expansion socket 3 has an extension portion 35 ′. The extension portion 35 is located on the side of the expansion socket 34, so that the insertion surface 33 of the second expansion socket 3 is larger than the first surface. The area of the insertion surface 23 of the expansion socket 2 is such that when the plug inserted in the expansion socket 34 is a plug type with a transformer, the extension portion 35 can provide a space sufficient for accommodating the transformer, which can be avoided. The transformer shields adjacent other expansion jacks 24. Moreover, the longitudinal direction of the expansion jack % of the second expansion socket 3 can also form an angle with the longitudinal direction of the expansion socket 24 of the first expansion socket 2, which is at an angle of 45. ~135. Preferably, it is 90. By. Referring to the 'this hairpin' shown in Figures 4 and 5, the head 12 of the extension socket 1 can be plugged into a power socket, and the connector plug 21 of the first expansion socket 2 can be inserted therein. The splicing plug of the second expansion socket 3 can be inserted into the splicing socket 22 of the first expansion socket f, so that the extension socket is expanded. 2 and the second expansion socket 3 are connected in series. Of course, the serial connection sequence is not limited thereto. The first expansion socket 2 and the second expansion socket 3 may also be interchanged in series, or the first expansion difficulty 2 and the first expansion socket 3 may be added according to user requirements. The number. In the fifth picture of the photo, when the invention is used, the expansion jacks 15 and the plugs 4 of the electrical appliances are electrically connected, and the copper 5 of the buckle is inserted with a transformer. In the flip type, it can be added to the expansion jack 24 of the n-th expansion socket 2, because the first cover == the wide-charge jack 24 is extended to the extension socket of the extension socket 1 'DA angle or 9G degree Thus, the portion of the device can be 201249028 ♦ protruding from the insertion surface 23 of the first expansion socket 2 to prevent the transformer from obscuring the adjacent expansion jacks 15, 34. Alternatively, the plug-in transformer 5 can also be selected to be inserted into the expansion jack % of the second expansion socket 3, since the insertion surface 33 of the second expansion socket 3 is formed with the extension 35, thus, the extension The portion 35 can also provide a space sufficient to accommodate the transformer, as well as to prevent the transformer from obscuring the adjacent expansion jacks 24. In addition, the modular jack of the present invention is not limited to use in combination, and the 4 extension socket 1, the first expansion socket 2 and the second expansion socket 3 can be used separately to provide a more diverse use. As shown in Fig. 6, when the length of the power supply line n of the extension socket 1 itself is insufficient, the two extensions can be used; the socket 1 can be used in series. As shown in Fig. 7, when the preset power jack 6 is a two-hole type, and the plug 4 of the electric appliance is a three-leg type, the first expansion socket 2 can be used to convert the jack type. ·formula. In the modular jack of the present invention, when the first expansion socket is electrically connected to the extension socket, the insertion surface of the first expansion socket is connected to the insertion surface of the extension socket, and the expansion socket of the first expansion socket The longitudinal direction of the hole forms an angle with the longitudinal direction of the expansion socket of the extension socket, so when the plug with the transformer is inserted into the expansion socket of the first expansion socket, the transformation is partially convex. Due to the insertion surface of the first expansion socket, it is possible to avoid obscuring other expansion jacks. Alternatively, the insertion surface of the second expansion socket has an extension portion. Therefore, when the plug with the transformer is inserted into the expansion socket of the second expansion socket, the extension portion can provide a space for accommodating the transformer to avoid The transformer shields the effectiveness of adjacent expansion jacks. The modular socket of the present invention can arbitrarily reduce or expand the number of the first expansion socket and the second expansion socket and the sequence of the serial connection. The 201249028 of the present invention can achieve a more flexible use manner according to the use of the modular socket. , the effect of the demand. The combination of the present invention (4), & phase _: into - angle or vertical, or the insertion surface of the second expansion socket = when the lion is set in the expansion socket of the second expansion socket The utility model avoids the effect of the hanging money hole: The modular socket of the invention has the effect of manufacturing the madness production cost because the socket structure is simple and easy to manufacture. Although the present invention has been disclosed in the above-described preferred embodiments, it is not intended to be a part of the present invention, and it is within the spirit and scope of the present invention to make various modifications and modifications to the above-described embodiments. The technical scope of the present invention is therefore to be determined by the scope of the appended claims. [Simple diagram of the figure] Figure 1: The stereoscopic appearance of the conventional extension socket. Figure 2: An exploded perspective view of the "Combined Safety Extension Cable" of 384944. Figure 3: An exploded perspective view of the conventional serial number M323745 "Serial type rotary socket". Figure 4: An exploded perspective view of the present invention. —11 — 201249028 ^ Figure 5: Combination appearance and state of use of the present invention. Fig. 6 is a view showing the state of use of the two extension sockets in series. Fig. 7 is a view showing the state of use of the first expansion socket conversion jack type of the present invention. [Main component symbol description] [Invention] 1 Extension socket la connector terminal lb continuation terminal 11 power cable 12 plug 13 continuation jack 14 plug-in surface 15 expansion jack 16 switch 2 first expansion socket 2a 2b Continued terminal 21 Continued plug 22 Jacking jack 23 Plug-in surface 24 Expansion jack 3 Second expansion socket 3a Jack 3b Continued end 31 Continued plug 32 Continued jack 33 Inserting face 34 Expansion plug Hole 35 Extension 4 Plug 5 Plug 6 Power Jack — 12 — 201249028 [General] 7 Extension socket 71 Expansion socket 72 Power cord 73 Plug 8 Modular socket 81 Base 811 Power cord 812 Plug 82 Expansion socket 821 Expansion plug Hole 83 Connector 9 Modular socket 91 Main socket 911 Jack 912 Power cord 913 Plug 92 Serial socket 921 Conductive plug 922 Expansion jack 923 Rotating seat 13