200821478 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種伸縮裝置，特別是指一種多角型 伸縮裝置。 【先前技術】 圖1顯示一種伸縮裝置卜該伸縮裝置i包含中空的一 基管11與一頭管12、一中間管單元13，以及一工1 14。 該基管11與該頭管12截面皆為圓形，該頭管、12供該 工具Μ安裝。該中間管單元13連接該基管u與頭管12, 並具有多數根截面呈圓形且徑寬循序遞減的中間管⑶。 參閱圖1與圖2,該多角型伸縮裝置i可在—枚合狀能 與一展開狀態間轉換’該收合狀態時’該頭管12伸入該i ^的中間管u卜每-根中間管131伸人下—根較粗的中間 ，該最粗的中間管131伸入該基管u中。該展開狀 崎，該頭管12伸出該最細的中間管13卜每一根中間管 ⑶伸出下-根較粗的中間管131，該最粗的中間管i3i伸 出该基管1 1。 該伸縮裝置！雖然可以藉此達到伸縮的功能，但是該 二 頭3 it中間管131的截面皆呈圓形，因此彼此 :目對旋轉，若社具14重量較重（例如鏡子），將因200821478 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a telescopic device, and more particularly to a polygonal telescopic device. [Prior Art] Fig. 1 shows a telescopic device including a hollow base pipe 11 and a header pipe 12, an intermediate pipe unit 13, and a work unit 14 . The base pipe 11 and the head pipe 12 are both circular in cross section, and the head pipe 12 is mounted for the tool. The intermediate pipe unit 13 connects the base pipe u and the head pipe 12, and has an intermediate pipe (3) having a plurality of circular sections and decreasing in diameter. Referring to FIG. 1 and FIG. 2, the polygonal telescopic device i can convert the head tube 12 into the middle tube of the i ^ in the "folding state" and the "folding state". The intermediate tube 131 extends from the lower to the middle of the thicker portion, and the thickest intermediate tube 131 extends into the base tube u. The expansion tube, the head tube 12 extends out of the thinnest intermediate tube 13 and each of the intermediate tubes (3) extends out of the lower-rooted intermediate tube 131, and the thickest intermediate tube i3i extends out of the base tube 1 1. The telescopic device! Although the function of the telescopic function can be achieved by this, the cross section of the two head 3it intermediate tubes 131 is circular, so that each other: the rotation of the eyepiece, if the body has a heavy weight of 14 (for example, a mirror),
=帶動該頭管12相對該基管u旋轉，使該 至該碩管1 9丨、，T n A 該 ❾雨度，使用者無法使該工具14保持在 ^ s以上的高度，導致有使用不便的缺失。 【發明内容】 5 200821478 •， 因此，本發明之目的，即在提供一種使用方便的多角 型伸縮裝置。 #寿 於是，本發明多角型伸縮裝置是包含一中空的基管單 元、一頭管單元，以及一中空的中間管單元。 該基管單元包括一截面呈多邊形的基管壁、一自該基 - 官壁一前端周緣沿徑向朝内縮束延伸的基管縮束壁，以及 一自該基管壁一内周面沿徑向朝内延伸的抵壁。 響 該頭管單元具有一截面呈多邊形的頭管壁、多數片設 置於該頭管壁一外周面的頭管限位片，以及一自該頭管壁 一前端朝向遠離該基管單元的抵壁方向延伸的連接桿，該 連接桿包含一安裝部。 該中空的中間管單元連接該基管單元與頭管單元，該 中間f單元的截面為與該基管單元與頭管單元相互配合的 多邊形，並具有多數片設置於該中間管單元一近後端處的 第一限位片，以及一位於該中間管單元一前端的第一縮束 • 壁。該多角型伸縮裝置可在一收合狀態與一展開狀態間轉 換，該收合狀態時，該中間管單元伸入該基管壁中，該中 間管單元後端抵住該抵壁。該展開狀態時，該第一限位片 _ 抵住該基管縮束壁，該等頭管限位片抵住該第一縮束壁。 本發明多角型伸縮裝置的功效在於藉由該基管壁、頭 官壁、中間官單元的截面呈多邊形的設計，使得該頭管單 元不會相對該中間管單元與該基管壁旋轉，讓使用上更為 方便。 【實施方式】 6 200821478 • · 有關本發明之前述及其他技術内容、特點與功效，在 β· 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖3與圖4，本發明多角型伸縮裝置之較佳實施例 包含一中空的基管單元2、一頭管單元3、一工具單元4, ‘ 以及一中空的中間管單元5。 "亥基管單元2包括一截面呈六邊形的基管壁21、一自 # 該基官壁21 —前端周緣沿徑向朝内縮束延伸的基管縮束壁 22 自該基官壁21 —内周面沿徑向朝内延伸的抵壁23， 以及一具有一磁鐵241並封閉該基管壁21 —後端的擋件24 該頭管單元3具有一截面呈六邊形的頭管壁31、二片 相對設置於該頭管壁31 —外周面的頭管限位片32，以及一 自該頭管壁31 一前端朝向遠離該基管單元2的抵壁23方 向延伸的連接桿33。= driving the head pipe 12 to rotate relative to the base pipe u, so that the rain is reduced to the height of the master pipe 19 9 丨, T n A, the user cannot keep the tool 14 at a height above ^ s, resulting in use Inconvenience is missing. SUMMARY OF THE INVENTION 5 200821478 • Accordingly, it is an object of the present invention to provide a polygonal telescopic device that is convenient to use. Thus, the polygonal expansion device of the present invention comprises a hollow base pipe unit, a head pipe unit, and a hollow intermediate pipe unit. The base pipe unit comprises a base pipe wall having a polygonal cross section, a base pipe constricted wall extending from the front end periphery of the base wall to the inner end of the base wall, and an inner circumferential surface of the base pipe wall Abutting wall extending radially inward. The head pipe unit has a head pipe wall having a polygonal cross section, a plurality of head pipe limiting pieces disposed on an outer circumferential surface of the head pipe wall, and a front end away from the base pipe unit from a front end of the head pipe wall a connecting rod extending in the wall direction, the connecting rod comprising a mounting portion. The hollow intermediate pipe unit is connected to the base pipe unit and the head pipe unit, wherein the intermediate f-unit has a cross section which is a polygon matching the base pipe unit and the head pipe unit, and has a plurality of pieces disposed near the intermediate pipe unit a first limiting piece at the end, and a first constricted wall at a front end of the intermediate tube unit. The polygonal telescopic device is convertible between a collapsed state and an unfolded state in which the intermediate tube unit projects into the base pipe wall, the rear end of the intermediate pipe unit abutting against the abutment wall. In the unfolded state, the first limiting piece _ abuts against the narrowing wall of the base pipe, and the head tube limiting pieces abut against the first contracting wall. The utility model of the polygonal telescopic device of the present invention is characterized in that the cross section of the base pipe wall, the front official wall and the intermediate official unit has a polygonal shape, so that the head pipe unit does not rotate relative to the intermediate pipe unit and the base pipe wall, so that It is more convenient to use. [Embodiment] 6 200821478 • The foregoing and other technical contents, features and effects of the present invention will be apparent from the following detailed description of a preferred embodiment of the accompanying drawings. Referring to Figures 3 and 4, a preferred embodiment of the polygonal telescopic device of the present invention comprises a hollow base pipe unit 2, a head pipe unit 3, a tool unit 4, and a hollow intermediate pipe unit 5. "Heil base pipe unit 2 includes a base pipe wall 21 having a hexagonal cross section, and a base pipe wall 22 from which the front end periphery extends radially inwardly and downwardly from the base pipe a wall 21 - a resisting wall 23 extending radially inwardly of the inner peripheral surface, and a stopper 24 having a magnet 241 and closing the rear end of the base pipe wall 21. The head pipe unit 3 has a head having a hexagonal cross section. The pipe wall 31 and the two head plates are oppositely disposed on the outer circumferential surface of the head pipe wall 31, and a connecting portion extending from a front end of the head pipe wall 31 toward the abutting wall 23 away from the base pipe unit 2 Rod 33.
該碩管壁31的一近後端處具有二個彼此相對，且自該 頭官壁31 一内周面延伸至一外周面的貫孔311，該等頭管 限位片32分別具有一固定部321、一貫穿該貫孔3ιι以將 該固定部321設置於該頭管壁31上的凸部322，以及二個 分別設置於該固定部321相反二端並與該固定部321夾一 1 2 0角度的翼部323。該連接桿33包含一自該頭管壁 η 一前端朝向遠離該基管單元2方向延伸的撓性部331， 以及自该撓性部331 —前端朝向遠離該抵壁23方向延伸 的安衣部332 ’在本實施例中，該安裝部332具有外螺紋。 200821478 該工具單元4包括一發光件41，以及一小鏡42。該發 光件41具有一可螺鎖於該連接桿33之安裝部332的殼體 411、一與該殼體411相配合組裝的罩體412、一設置於該 罩體412内的發光二極體413，以及二個設置於該殼體411 與該罩體412内並電連接該發光二極體的電池414。當該發 光件413拆下時，該小鏡42也可螺鎖於該安裝部332 (如 圖6所示），而不使用該小鏡42時，也可將該小鏡42拆下 安裝於該擋件24位於該基管壁21内的一端。 配合參閱圖5，該中間管單元5連接該基管單元2與頭 官單元3,在本實施例中具有八根呈中空且截面為六邊形的 中間管51、二片設置於該中間管單元5 一近後端處的第一 限位片52、一位於該中間管單元5 一前端的第一縮束壁53 夕數組第二限位片組54，以及多數個第吞縮束壁55。值 得說明的是在本發明最廣的發明概念中，該中間管單元5 可以僅包含一根中間管51、二片第一限位片52,及一第一 縮束壁53。 每一根中間管51的徑寬是循序遞減，以供下一根較細 的中間官51穿伸，最細的中間管5丨供該頭管壁31穿伸， 最粗的中时51穿伸於該基管壁21中。每—根中間管51 的一近後端處具有二個自該中間管51 一内周面延伸至一外 周面的貫孔川，該第一縮束壁53自該最細的中間管51一 前端沿徑向朝内縮束延伸，該等第二縮束壁55分別自其它 的中間管51 一前端沿徑向朝内縮束延伸。 該等第-限位片52設置於該最粗的中間管5ι 一外周 200821478 面’該等第二限位片組54分別設置於其它中間管51 一外 周面，該等第一片限位片52彼此相對，並各具有一貫穿該 最粗中間管51的貫孔511的凸部521，一供該凸部521設 置的固定部522，以及二個分別設置於該固定部522相反二 端並與該固定部522夾一 i 2 〇。角度的翼部523。每一組 第一限位片組54均具有二片彼此相對的第二限位片54〇， 每一片第二限位片54〇各具有一貫穿該所對應的中間管5工 的貝孔511的凸部541、一供該凸部541設置的固定部542 X及一個勿別设置於該固定部542相反二端並與該固定 部542夾一 1 2 〇。角度的翼部543。 參閱圖5與圖3，該多角型伸縮裝置可在—收合狀態與 一展開狀態間轉換，該收合狀態時，該中間管翠元5伸入 該基I壁21中，該中間管單元5後端抵住該抵壁23，每一 中間管51伸入後-較粗的中間管51中，每一中間管51分 別抵住對應後—中間管51的該第二限位片組Μ的該等凸 部541，該頭管單元3伸入該最細的中間管η中。 斤該展開狀態時，該中間管單元5伸出該基管壁2卜該 第吁位片52抵住該基管縮束壁22，每一中間管乂伸出 後Γ較粗时間管51，每—第二限位片組54分別抵住該對 應後一根中間管51的該第二縮束壁55,該頭管單幻伸出 該最細的中間管51，該等頭管限位片32抵住該第一縮束壁 521=3與圖6所示’該多角型伸縮裝置不論在該收合 不命裝上該發光件4!、小鏡42或是其 匕較重的工具’又或是將該頭管單元3的撓性部331彎折 9 200821478 } … 的狀態下，該頭管單元3都不會發生相對該中間管單元5 • 與該基管壁21旋轉的情形。 本發明多角型伸縮裝置除了具有伸縮功能之外，該基 管壁、頭管壁31、中間管單元5的截面呈多邊形的設： ，使得該頭管單元3不會相對該中間管單元5與該基管壁 21旋轉，即使裝上重量較重的工具，該工具也都可二： 在該頭管單元3以上的高度，旋轉該基管單元2時，該工 .具也可以隨著旋轉，因此提高了使用的方便性。 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾7皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一側視圖，說明習知一種伸縮裝置位於一 狀態； | 圖2疋一侧視圖，說明習知一種伸縮裝置位於一收合 狀態； ' 口 圖3疋局部剖視圖，說明本發明多角型伸縮裝置一 較佳實施例位於一展開狀態； 圖4是該較佳實施例的一截面剖視圖，說明一中間管 :二第一限位片、一第二縮束壁與一基管單元的結合情形 9 圖5是該較佳實施例的一剖視圖，說明該多角型伸縮 裝置位於一收合狀態；以及 10 200821478 圖6是該較佳實施例的一側視圖，說明該多角型伸縮 裝置的一小鏡不會相對該中間管與一基管壁旋轉。The proximal end of the master wall 31 has two through holes 311 which are opposite to each other and extend from an inner peripheral surface of the head wall 31 to an outer peripheral surface. The head tube limiting pieces 32 respectively have a fixing. a portion 321 , a convex portion 322 penetrating the through hole 3 ι to the fixing portion 321 on the head tube wall 31 , and two opposite ends of the fixing portion 321 respectively and sandwiching the fixing portion 321 2 0 angle wing 323. The connecting rod 33 includes a flexible portion 331 extending from a front end of the head pipe wall η toward the base pipe unit 2, and a dressing portion extending from the front end of the flexible portion 331 toward the direction away from the resisting wall 23. 332 'In the present embodiment, the mounting portion 332 has an external thread. 200821478 The tool unit 4 includes a light emitting member 41 and a small mirror 42. The illuminating member 41 has a housing 411 that can be screwed to the mounting portion 332 of the connecting rod 33, a cover 412 that is assembled with the housing 411, and a light-emitting diode disposed in the housing 412. 413, and two batteries 414 disposed in the housing 411 and the cover 412 and electrically connecting the LEDs. When the illuminating member 413 is detached, the small mirror 42 can also be screwed to the mounting portion 332 (as shown in FIG. 6). When the small mirror 42 is not used, the small mirror 42 can also be detached and mounted. The stop 24 is located at one end of the base pipe wall 21. Referring to FIG. 5, the intermediate tube unit 5 is connected to the base tube unit 2 and the head unit 3, and in the embodiment, there are eight intermediate tubes 51 which are hollow and have a hexagonal cross section, and two sheets are disposed on the middle tube. a first limiting piece 52 at a near rear end of the unit 5, a first limiting wall 53 at a front end of the intermediate tube unit 5, an array of second limiting pieces 54 of the array, and a plurality of first torsion beam walls 55 . It is to be noted that in the broadest inventive concept of the invention, the intermediate tube unit 5 may comprise only one intermediate tube 51, two first limiting pieces 52, and a first constricted wall 53. The diameter of each of the intermediate tubes 51 is sequentially decreased for the next thin intermediate member 51 to be stretched, and the thinnest intermediate tube 5 is for the head tube wall 31 to be stretched, and the thickest medium 51 is worn. Extending into the base pipe wall 21. A proximal end of each of the intermediate tubes 51 has two through-holes extending from an inner peripheral surface of the intermediate tube 51 to an outer peripheral surface, and the first narrowing wall 53 is from the thinnest intermediate tube 51. The front end extends radially inwardly, and the second constricted walls 55 extend radially inwardly from a front end of the other intermediate tube 51, respectively. The first limiting piece 52 is disposed on the outermost portion of the outermost tube 5 ι, the outer circumference 200821478. The second limiting piece groups 54 are respectively disposed on the outer peripheral surface of the other intermediate tube 51, and the first limiting piece 52 opposite to each other, and each has a convex portion 521 penetrating through the through hole 511 of the thickest intermediate tube 51, a fixing portion 522 provided for the convex portion 521, and two opposite ends respectively disposed at the opposite ends of the fixing portion 522 An i 2 〇 is sandwiched by the fixing portion 522. Angled wing 523. Each set of the first limiting piece 54 has two second limiting pieces 54 彼此 opposite to each other, and each of the second limiting pieces 54 具有 has a hole 511 extending through the corresponding intermediate tube 5 . The convex portion 541, a fixing portion 542 X provided with the convex portion 541, and one of the opposite ends of the fixing portion 542 are not disposed at the opposite ends of the fixing portion 542 and are sandwiched by the fixing portion 542 by 1 2 〇. Angled wing 543. Referring to FIG. 5 and FIG. 3, the polygonal expansion device can be switched between a collapsed state and an unfolded state. In the collapsed state, the intermediate pipe Cui 5 extends into the base I wall 21, and the intermediate pipe unit The rear end of the 5 abuts against the abutting wall 23, and each of the intermediate tubes 51 extends into the rear-thickness intermediate tube 51, and each of the intermediate tubes 51 respectively abuts the second limiting piece group corresponding to the rear-middle tube 51. The protrusions 541 of the head tube unit 3 extend into the thinnest intermediate tube η. In the unfolded state, the intermediate tube unit 5 extends out of the base tube wall 2, the first snap sheet 52 against the base tube constricted wall 22, and each intermediate tube protrudes from the thicker tube 51. Each of the second limiting film sets 54 respectively abuts the second narrowing wall 55 of the corresponding one of the intermediate tubes 51, and the head tube protrudes outwardly from the thinnest intermediate tube 51, and the heads are limited The bit piece 32 abuts against the first narrowing wall 521=3 and the multi-angle telescopic device shown in FIG. 6 is attached to the light-emitting member 4!, the small mirror 42 or the heavier In the state where the tool 'also bends the flexible portion 331 of the head tube unit 3 9 200821478 } , the head tube unit 3 does not rotate relative to the intermediate tube unit 5 • with the base tube wall 21 situation. In addition to the telescopic function, the polygonal tube expansion device of the present invention has a polygonal cross section of the base tube wall, the head tube wall 31, and the intermediate tube unit 5 such that the head tube unit 3 does not oppose the intermediate tube unit 5 The base pipe wall 21 rotates, and even if a heavy weight tool is attached, the tool can be two: when the base pipe unit 2 is rotated at a height above the head pipe unit 3, the tool can also rotate with the tool. , thus improving the convenience of use. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent change and modification of the patent application scope and the description of the invention are as follows. All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a conventional telescopic device in a state; FIG. 2 is a side view showing a conventional telescopic device in a collapsed state; A preferred embodiment of the polygonal telescopic device of the present invention is in an unfolded state; FIG. 4 is a cross-sectional view of the preferred embodiment, illustrating an intermediate tube: two first limiting pieces, a second narrowing wall and Figure 1 is a cross-sectional view of the preferred embodiment illustrating the polygonal telescopic device in a collapsed state; and 10 200821478 Figure 6 is a side view of the preferred embodiment, illustrating A small mirror of the polygonal telescopic device does not rotate relative to the intermediate tube and a base tube wall.
11 20082147811 200821478
【主要元件符號說明】 2 •…* •…基管單元 412 …· …罩體 21 …·· •…基管壁 413 …· …發光二極體 22··… …·基管縮束壁 414 …· …電池 23 ··… •…抵壁 42…… • ••小鏡 24··… …·擋件 5…… …中間管單元 241 …·磁鐵 51…… …中間管 3…… •…頭管單元 511 …· …貫孔 31 ·•… …·頭管壁 52.····· …第一限位片 311-· …·貫孔 52卜… …凸部 32…·· •…頭管限位片 522 …· …固定部 321… ·*··固定部 523 ·… …翼部 322… •…凸部 53…… …第一縮束壁 323… …·翼部 54…… …第二限位片 33·…· •…連接桿 540 ·… …第二限位片 331… •…撓性部 54卜… •••凸部 332… …·安裝部 542 ···· …固定部 4…… •…工具單元 543 •… …翼部 41 "… •…發光件 55···… …第二縮束壁 41 卜·. •…殼體 12[Description of main component symbols] 2 •...* •...Base pipe unit 412 ...·...cover body 21 ...···...base pipe wall 413 ...·...light-emitting diode 22····· base pipe shrinkage wall 414 ...· ...battery 23 ··... •...but wall 42... • •• small mirror 24··...stop 5......intermediate tube unit 241 ...·magnet 51......intermediate tube 3... •... Head tube unit 511 ...··through hole 31 ·•...·· head tube wall 52.·····...first limit piece 311-···through hole 52... convex part 32...··... Head tube limiting piece 522 ... ... fixing portion 321 ... * * · fixing portion 523 ... ... wing portion 322 ... ... ... convex portion 53 ... ... first narrowing wall 323 ... ... wing portion 54 ... Second limiting piece 33·····... Connecting rod 540 ·... Second limiting piece 331...•...Flexible part 54...•••Protruding part 332...··Installing part 542 ···· Part 4... •...tool unit 543 •... wing 41 "... •...lighting member 55···...second narrowing wall 41 卜..... housing 12