M426462 五、新型說明： 【新型所屬之技術領域】 本創作係提供一種防塵護蓋之伸縮拉桿固定結構，尤指 其技術上提供一種耐磨、使導引裝置與護蓋組移動平穩順 暢且増加使用壽命的固定結構。 【先前技術】 習用之加工機具會在機台上設置導軌，以作為加工機 ♦具進給之導引，為了確保加工機具進給時之精度，均會在 導軌上叹置防塵護蓋，以防止加工時產生的金屬屑掉落於 導軌上，影響到加工機具的精確度 防塵護蓋的底部透過螺絲鎖設有伸縮拉桿，使伸縮拉 桿與防塵護蓋互相連動，導螺桿驅動工作平台移動，使伸 縮拉桿作伸展與收合，伸縮拉桿同時帶動防塵護蓋滑動， _但螺絲與伸縮拉桿的固定孔間彼此存在有間隙，伸縮拉桿 :I矛收縮時會造成螺絲鬆動而使牽引不確實，造成防 g蓋移動時會產生震動，具有移動不順暢的問題，且防 a蒦蓋在移動時，螺絲與伸縮拉桿之間會相互磨擦產生噪 ★又使螺絲與伸縮拉桿互相磨乾具有使用損壞性高和 辱命短的問題。 切企盼 彳針對上述習知結構所存在之問題點，如何開發 t' ί! 之_結構’實消費者所殷 '係相關業者須努力研發突破之目標及方向。 3 M426462 ▲於此創作人本於多年從事相關產品之製造開發 與設計經驗，針對上述之目標，詳加設計與審慎評估後’ 終得一確具實用性之本創作。 【新型内容】 ，欲解決之技術問題點：習用之伸縮拉桿主要透過螺絲 鎖固於防塵護蓋的底部，使伸縮拉桿與防塵護蓋互相連動 ，但螺絲與伸縮拉桿的固定孔間彼此存在有間隙，伸縮拉 桿在伸展和收縮時會造成螺絲鬆動而使牽引不確實，造成 防塵-蒦蓋移動時會產生震動，具有移動不順暢的問題，螺 絲與拉桿之間會相互磨擦產生噪音，且螺絲與伸縮拉桿互 相磨耗，具有容易損壞和使用壽命短的問題。 解決問題之技術手段：提供一種防塵護蓋之伸縮拉桿 μ結構’包括m具有複數活動蓋’依序連接固 定而可沿著轴向移動，該護蓋組的底緣連接一導引裝置， 該導引裝置具有複數連桿單元’各該連桿單元具有等長之 二桿件’二該桿件以其命點處透過一限位件樞接形成一裝 配端’各該裝配端固設於該護蓋組’使該連桿單元之二端 分別形成二開合臂’其令該連桿單元之二該開合臂再與另 一連桿單元之二該開合臂分別透過一固定件枢接形成一、作 動端’而可利用該開合臂相對開合之動作，使各該活動蓋 移動而呈現伸展或收合之狀態；綠位件、該固定件分別 套設-襯套’使樞設於該裝配端的該限位件與極設於該作 M426462 動端的該固定件達到緊密配合者。 對照先前技術之功效：本創作由轴承鋼所製成，具有 耐磨的功效，於裝配端與作動端的框孔歲設概套，使觀套 與桿件上的耐磨件緊密配合，固定件與限位件也與概❹ 密配合而無間隙’藉以達到導引裝置確實牽?丨帶動護蓋組 ，且導引裝置在移動時’只有桿件伸展與收合，固定件並 不會互相連動’使護蓋組移動平穩不會產生震動和噪音， 增加導引裝置與護蓋組的使用壽命。 有關本創作所採用之技術、手段及其功效，兹舉一較 佳實施例並配合圖式詳細說明於后，相信本創作上述之目 的、構造及特徵，當可由之得一深入而具體的瞭解。 【實施方式】 參閱第一至第五圖所示，本創作係提供一種防塵護蓋 之伸縮拉桿固定結構，包括：一護蓋组（1〇)，具有數個活 動蓋（11)，依序連接固定而可沿著軸向移動，一導引裝置 (20) 連接於該護蓋組（1〇)的底緣’具有數個連桿單元 (21) ，各該連桿單元（21)具有二等長之桿件（22)，二 該桿件（22)以其中點處透過一限位件（26)樞接形成一 裝配端（24)，各該裝配端（24)固設於該護蓋組（1〇)， 使該連桿單元（21 )之二端分別形成二開合f ( 23 )，其中 該連桿單元（21)之二該開合臂（23)再與另一連桿單元 (21 )之二該開合臂（23)分別透過一固定件（27)樞接 5 M426462 形成一作動端（25)’該裝配端（24)與該作動端（託）分 別具有一樞孔（28)，一耐磨件（5〇)嵌設於其中該樞孔（ 28)，而可利用該開合臂（23)相對開合之動作，使各該活 動蓋（11)移動而呈現伸展或收合之狀態；該限位件⑺ )、該固定件（27)分別套設一襯套（3〇)，該襯套 為中空管狀且為对磨材質所製成的轴承鋼觀套或塑鋼概套 ，且該襯套（30)嵌設於該裝配端（24)與該作動端（25 )的樞孔（28)，使樞設於該裝配端（24)的該限位件 )與樞設於該作動端（25)的該固定件（27)達到緊密配 合者，該限位件（26)可為螺絲或者為一研磨螺检（4〇)， 該研磨螺栓（4G)具有-頭部（41)與—桿體（42)，該桿 體U2)尾端具有—螺紋部（43)，該桿體（42)靠近該頭 部（41)的一端徑向延伸出一襯套部（44)，該襯套部 )與該螺紋部（43)呈階級排列；該固定件可為鉚釘。 組裝時，先將該些耐磨件（5〇 )嵌設於該作動端（Μ )與該裝配端（24)的該栖孔（28)，接著將該些襯套（3〇 )插設於該些樞孔（28)，使該些襯套（3〇)與該些耐磨件 (50)緊密配合，於各該襯套（3〇)的頂端或底端分別可 套設一墊片（60)，具有加強固定的功效，再將鉚釘穿過位 ;各該作動端（25)的該襯套（3〇)，藉以形成該二桿件（ 2 2 )的樞軸並達到緊密配合接著再將螺絲或該研磨螺栓 (40)穿過位於該裝配端（24 )的該襯套（μ )，螺絲或該 M426462 研磨螺栓（40)與該襯套（30)緊密配合而無產生間隙， 並鎖固於該活動蓋（11 )的底緣，使該導引裝置（2〇 )與 護蓋組（10)互相連動。 該導引裝置（20)被工作平台驅動伸展時，該導引裝 置（20 )的各該裝配端（24 )間之距離增加，並同時推動 各該活動蓋（11)作等距離的位移，各該桿件（22)伸展 - 與收合並不會使該固定件（27)連動，而達成該護蓋組（1〇 # )之平穩順暢的伸展。 當該護蓋組（10)欲縮合時，藉由該導引裝置（20) 被工作平台驅動收縮，該導引裝置（2〇)的各該裝配端（ 24 )間的距離減少，並同時推動各該活動蓋（丨丨）作等距 離的位移，各該桿件（22)伸展與收合並不會使該固定件 (27)連動，而達成該護蓋組之平穩順暢的縮合。 前文係針對本創作之較佳實施例為本創作之技術特徵 進行具體之說明卜淮，熟悉此項技術之人士當可在不脫離 本創作之精神與原則下對本創作進行變更與修改，而該等 變更與修改，皆應涵蓋於如下申請專利範圍所界定之範脅 中。 【圖式簡單說明】 第-圖：本創作裝設於護蓋組與導引裝置之底視圖 圖本創作裝设於護蓋組呈收合狀態之底視圖 第三圖：本創作與導引裝置的分解圖 M426462 第四圖：本創作於裝配端之剖視圖 第五圖：本創作於作動端之剖視圖 【主要元件符號說明】 (10 )護蓋組 (11 )活動蓋 (20) 導引裝置 (21) 連桿單元 (22) 桿件 (23) 開合臂 (24) 裝配端 (25) 作動端 (2 6 )限位件 (27)固定件 (2 8 )樞孔 (30)襯套 (40) 研磨螺栓 (41) 頭部 (42) 桿體 (43) 螺紋部 (44 )襯套部 (50)耐磨件 (60)墊片M426462 V. New description: [New technical field] This creation provides a telescopic pull rod fixing structure for dustproof cover, especially for providing a wear-resistant technology, which makes the guiding device and the cover group move smoothly and smoothly. Fixed structure for service life. [Prior Art] Conventional processing tools will be equipped with guide rails on the machine table to guide the feed of the processing machine. In order to ensure the precision of the processing tool, the dust cover will be slammed on the guide rail. Prevent metal chips generated during processing from falling on the guide rail, affecting the accuracy of the processing tool. The bottom of the dustproof cover is provided with a telescopic pull rod through the screw lock, so that the telescopic pull rod and the dustproof cover are interlocked with each other, and the lead screw drives the working platform to move. The telescopic pull rod is stretched and folded, and the telescopic pull rod simultaneously drives the dust cover to slide, _but there is a gap between the screw and the fixing hole of the telescopic pull rod, and the telescopic pull rod: when the spear is contracted, the screw is loosened and the traction is not correct. When the anti-g cover moves, vibration will occur, and there is a problem that the movement is not smooth. When the anti-a cover is moved, the screw and the telescopic pull rod will rub against each other to generate noise. ★ The screw and the telescopic pull rod are ground to each other and the damage is used. The problem of high sexuality and short stigma. I hope that 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳 彳3 M426462 ▲This creator has been engaged in the manufacturing development and design experience of related products for many years. After the detailed design and careful evaluation of the above objectives, the author has a practical and practical creation. [New content], the technical problem to be solved: the conventional telescopic pull rod is mainly fixed to the bottom of the dustproof cover by screws, so that the telescopic pull rod and the dustproof cover are interlocked with each other, but the fixing holes of the screw and the telescopic pull rod are mutually existed. In the gap, when the telescopic pull rod is stretched and contracted, the screw will be loosened and the traction will be unreliable, which will cause vibration when the dust cover is moved. The movement will not be smooth, and the screw and the tie rod will rub against each other to generate noise, and the screw Wears with the telescopic rods, which is easy to damage and has a short service life. Technical means for solving the problem: providing a dustproof cover of the telescopic pull rod μ structure 'including m having a plurality of movable covers' sequentially connected and fixed to be movable along the axial direction, the bottom edge of the cover set being connected with a guiding device, The guiding device has a plurality of connecting rod units each of the connecting rod units having two rod members of equal length. The rod member is pivotally connected with a limiting member at its life point to form a mounting end. The cover group 'the two ends of the link unit respectively form a two-opening arm', and the two of the connecting arms and the opening and closing arms of the connecting unit are respectively passed through a fixing member The pivoting member forms an actuating end', and the opening and closing of the opening and closing arms can be utilized to move the movable cover to exhibit a state of stretching or folding; the green member and the fixing member respectively sleeve the bushing. The limiting member pivoted to the mounting end is brought into close fitting with the fixing member disposed at the movable end of the M426462. Compared with the effect of the prior art: the creation is made of bearing steel, which has the effect of wear resistance. The frame hole at the assembly end and the actuation end is set on the sleeve, so that the sleeve and the wear part on the rod are closely matched, the fixing piece And the limiting member is also closely matched with the gap without the gap', so that the guiding device does not pull the visor, and when the guiding device moves, only the rod is stretched and folded, and the fixing members do not mutually Linking 'to make the cover group move smoothly will not generate vibration and noise, increasing the service life of the guiding device and the cover group. With regard to the techniques, means and functions of the present invention, a preferred embodiment is described in detail with reference to the drawings, and it is believed that the above objects, structures and features of the present invention can be obtained from an in-depth and specific understanding. . [Embodiment] Referring to the first to fifth figures, the present invention provides a telescopic pull rod fixing structure for a dustproof cover, comprising: a cover group (1〇) having a plurality of movable covers (11), in order The connection is fixed and movable along the axial direction, and a guiding device (20) is connected to the bottom edge of the cover group (1〇) having a plurality of link units (21), each of the link units (21) having a second length member (22), wherein the rod member (22) is pivotally connected at a midpoint thereof through a limiting member (26) to form a mounting end (24), wherein each of the mounting ends (24) is fixed to the rod end (24) a cover group (1〇), such that the two ends of the link unit (21) respectively form a two opening and closing f (23), wherein the connecting unit (21) two of the opening and closing arms (23) and another The connecting unit (21) has two opening and closing arms (23) pivotally connected through a fixing member (27) 5 M426462 to form an operating end (25). The mounting end (24) and the actuating end respectively have a pivot hole (28), a wear-resistant member (5〇) is embedded in the pivot hole (28), and the opening and closing arm (23) can be opened and closed to make each movable cover (11) Move and stretch The state of the folding; the limiting member (7)) and the fixing member (27) are respectively sleeved with a bushing (3〇), which is hollow tubular and is a bearing steel sleeve or plastic steel made of a grinding material. a bushing (30) is embedded in the mounting end (24) and the pivot hole (28) of the actuating end (25), so that the limiting member pivoted on the mounting end (24) The fixing member (27) pivotally disposed at the actuating end (25) reaches a tight fit, and the limiting member (26) can be a screw or a grinding screw (4〇), the grinding bolt (4G) having - a head portion (41) and a rod body (42) having a threaded portion (43) at a tail end thereof, the rod body (42) extending radially from a distal end of the head portion (41) to a bushing The portion (44), the bushing portion) is arranged in a class with the threaded portion (43); the fixing member may be a rivet. When assembling, the wear parts (5〇) are first embedded in the operating end (Μ) and the perforating hole (28) of the mounting end (24), and then the bushings (3〇) are inserted. In the pivot holes (28), the bushings (3〇) are closely matched with the wear parts (50), and a pad can be respectively disposed on the top or bottom end of each bushing (3〇). The sheet (60) has the effect of reinforcing the fixing, and then passes the rivet through the position; the bushing (3〇) of each of the actuating ends (25) forms a pivot of the two rods (2 2 ) and is compacted The fitting then passes the screw or the grinding bolt (40) through the bushing (μ) at the fitting end (24), and the screw or the M426462 grinding bolt (40) is tightly fitted with the bushing (30) without generating The gap is locked to the bottom edge of the movable cover (11) to interlock the guiding device (2) with the cover group (10). When the guiding device (20) is driven and extended by the working platform, the distance between the assembly ends (24) of the guiding device (20) is increased, and at the same time, the movable covers (11) are equally displaced. Each of the rod members (22) is stretched-and merged without interlocking the fixing member (27) to achieve a smooth and smooth extension of the cover group (1〇#). When the cover group (10) is to be condensed, by the guiding device (20) being driven and contracted by the working platform, the distance between the assembly ends (24) of the guiding device (2) is reduced, and at the same time Each of the movable covers is driven to be equidistantly displaced, and each of the members (22) is extended and retracted without interlocking the fixing members (27), thereby achieving smooth and smooth condensation of the cover members. The foregoing is a detailed description of the technical features of the present invention for a preferred embodiment of the present invention. Those skilled in the art can make changes and modifications to the present invention without departing from the spirit and principles of the present invention. Such changes and modifications shall be covered in the scope of the patent as defined in the following patent application. [Simple description of the diagram] The first picture: the bottom view of the creation of the cover group and the guiding device. The original installation is installed in the bottom view of the cover group. The third picture: the creation and guidance Exploded view of the device M426462 Figure 4: Sectional view of the creation at the assembly end Figure 5: Sectional view of the creation at the actuation end [Description of main components] (10) Cover group (11) Movable cover (20) Guide (21) Link unit (22) Rod (23) Opening and closing arm (24) Mounting end (25) Acting end (2 6) Retaining member (27) Fixing member (2 8 ) Pivot hole (30) Bushing (40) Grinding bolt (41) Head (42) Rod body (43) Threaded part (44) Bushing part (50) Wear parts (60) Gasket