M289820 八、新型說明: 【新型所屬之技術領域】 本新型是有關於一種線性滑執裝置,特別是指一種防 塵式線性滑軌裝置。 【先前技術】M289820 VIII. New description: [New technical field] The present invention relates to a linear sliding device, in particular to a dustproof linear sliding device. [Prior Art]
參閱圖1,習知之線性滑軌i包含有一長條狀固定座 11、一長條狀滑動塊12,及二分別位於該滑動塊12兩側且 位於該滑動塊12與該固定座n之間的移動組13。該固定 座11開設有一沿該固定座u長軸方向且可供該滑動塊12 滑動之長條狀容置槽lu,且該容置槽U1 U 上形成有兩相對内側面,該二内側面上分別開設有一執槽 112’該滑動塊12之兩側則分別開設有一與該軌槽112相 互對應的滑槽121。 々該滑動塊12具有四個第一限位桿122,該滑動塊12之 每一滑槽121内間隔設有兩個第—限位桿122,該固定座 U具有四個第二限位桿113,該固定座11之每-執槽112 内間隔設有兩個第二限位桿113,每一移動組13皆具有一 介於該滑動塊12與該固定座u之間的滑動片i3i,及複數 間隔穿設於該滑動片1 3彳μ 、☆ 轫月131上之滾珠132,該等滾珠132可沿 著該滑槽121内之兩個楚_ m 弟一限位桿122與相對應之軌槽112 内的兩個第二限位择η ^、、吞^ 滚動’以降低該滑動塊12相對於 該固定座11滑動時之摩擦力。 目前習知之線性滑執1已經被廣泛地制於機械手臂 精密機械、自動化設備、量測機器,及電子設備上,以 中,愈是精密的機器,對於該線Referring to FIG. 1 , a conventional linear slide i includes a long strip 11 and a long slider 12 , and two are located on opposite sides of the slider 12 and between the slider 12 and the mount n. Mobile group 13. The fixing seat 11 defines a long accommodating groove lu along the longitudinal direction of the fixing base u and is slidable by the sliding block 12, and the receiving groove U1 U is formed with two opposite inner sides. Each of the two sides of the sliding block 12 defines a sliding slot 121 corresponding to the rail groove 112. The sliding block 12 has four first limiting rods 122. Each sliding slot 121 of the sliding block 12 is provided with two first-position limiting rods 122. The fixing base U has four second limiting rods. 113. A second limiting rod 113 is disposed in each of the slots 112 of the fixing base 11. Each moving group 13 has a sliding piece i3i between the sliding block 12 and the fixing base u. And a plurality of balls 132 disposed on the sliding piece 1 3彳μ, ☆ 轫月131, and the balls 132 may be corresponding to the two θ The two second limit positions in the rail groove 112 are η ^, and swollen to reduce the frictional force of the sliding block 12 when sliding relative to the fixed seat 11. At present, the conventional linear slipper 1 has been widely used in mechanical arm precision machinery, automation equipment, measuring machines, and electronic equipment, and the more sophisticated the machine, the more
M289820 作為直線導引的機構 , β - V ^ 7 /Γ、呑发 性滑軌丄的精密度也就愈為提高,尤其長時間使用後,該 固定座η之軌槽112内的第二限位桿113或是該滑動塊12 之滑槽⑵内的第一限位桿122,往往會積存許多的灰塵雜 夤,造成該線性滑執1於使用時, T U為過多的雜質堆積而 產生Μ移不順暢的現象’以致失去盆 天云其精岔度,甚至降低該 線性滑執1的使用壽命。 【新型内容】 因此’本新型之目的,即在接供 I你捉仏種可有效防止灰塵 累積,以提高使用壽命之防塵式線性滑執裝置。 於是,本新型防塵式線性滑軌裝置包含有一第一滑軌 座、一苐一滑執座、二分別位於兮笛-、、典虹十 J1 y、茨弟一滑執座兩側之滑動 件,及一主防塵片。 該第-滑執座具有-第一端及—第二端,其中一端為 恆開放端’該第一端與第二端之間開設有一容置槽,爷容 置槽於該第一滑軌座上形成有兩相對之内壁面,並且每一 内壁面上皆開設有一軌槽。該第二滑軌座位於該第一滑軌 座之容置槽内且可相對於該第一滑執座滑動,且該第二滑 軌座面向該第一滑執座之兩執槽的相反兩側面上分別開: 有-滑槽,每—滑槽係與該第—滑軌座之每—軌槽相互二 應。每-滑動件係置於相互對應之軌槽與滑槽間。該主防 塵片是固設於該第-滑軌座之值開放端面上,並開設有一 可供該第二滑軌座通過之凹槽,該凹槽相對立的二側面上 分別具有-可伸置於該第二滑軌座兩侧之滑槽内部的刮塵 6 M289820 部。 本新型之功效在於,當兮筮 讲勤^ 田°亥弟-滑執座相對第—滑軌座 0士 ^ 之㈣放端伸出或縮入 ^ φ J刀別對该弟二滑軌座兩側 之峋槽表面進行塵垢之清除, 一 乂運防壓之功效,可使該第 一)月執座不會因過多灰鹿雜哲劳扯< + , wμ雜貝累積而產生滑移不順暢的現 象’有效維持該防塵式線性滑執裝置於使用上之精密度, 提高其使用壽命。 【實施方式】 、有關本新型t前述及其他技術内纟、特點與功效,在 乂下配口參考圖式之三個較佳實施例的詳細說明中,將可 清楚的呈現。 在本新型被洋細描述之前,要注意的是,在以下的說 明内谷中,類似的元件是以相同的編號來表示。 參閱圖2、3、4,本新型防塵式線性滑執裝置2之第一 車乂佳實施例’包含有一第一滑軌座3、一第二滑軌座4、二 刀別位於該第二滑軌座4兩側之滑動件5、一個主防塵片6 及一固設於該第一滑軌座3之一端面上的端蓋件7。 该第一滑執座3具有一第一端、一第二端,及四個第 限位杯34 ’在本實施例中,該第一端是為恆開放端,該 楚一 —端則是封閉端,當然實際實施時也可以是該第〆端為 封閉端,該第二端為恆開放端,故不應以本實施例之說明 為限。 "亥第一端與第二端之間開設有一容置槽31,該容置槽 M289820 31於邊第一滑軌座3上形成有兩相對之内壁面32及一連接 該二内壁面32之封閉面33,且於每一内壁面^上皆開設 有一軌槽⑵,每-軌们21内間隔設有兩個第二限位桿 34’另外,於該封閉面33上開設有一平行該容置槽η之 限位槽331,且該限位槽331之長度小於該第—滑軌座3之 長度。 該第二滑軌座4位於該第—滑軌座3之容㈣31内且 可相對於該第—滑軌座3滑動,該第二滑軌座4具有一滑 塊W、-設於該滑塊41上且可於該第一滑軌座3之限位: 331内滑移的滑移銷42,及四個第—限位桿43,該滑塊μ 於面向該第-滑執座3之兩軌槽321的相反兩側面上分別 開設有-滑槽4U,且每-滑槽411係與該第—滑執座3之 每-軌槽32"目互對應,而每一滑槽4"内間隔設有兩個 第一限位桿43。 每—滑動件5係置於相互對應之軌槽321與滑槽々η 間,且皆具有一介於該第二滑執座4與該第—滑軌座3之 間的滑動片51,及複數間隔穿設於該滑動片51之滾珠 ’該等滾珠52可沿著該滑槽411内之兩個第—限位桿二 相對應之執槽321内的兩個第二限位桿34滾動,以降低該 第二滑執座4相對於該第一滑軌座3滑動時之摩擦力。 該主防塵片6是固設於該第一滑執座3 山 心昂一端上, 且開設有-可供該第二滑軌$ 4通過之凹槽6ιι,該凹槽 611相對立的二側面上分別具有一可伸置於該第二滑軌座: 兩側之滑槽411内部的刮塵部62,每一到塵部^則是由橡 8 M289820 膠等彈性材質所製成。 該端蓋件7則鎖設於該主防塵片6上,亦即該主防塵 片6是介於該端蓋件7與該第一滑執座3之第—端門且 =兩者夾置固定。該端蓋件7開設有—可供該第二·座4 牙伸的端槽71 ’且該端槽71之兩側間距猶小於該第一滑轨 ^ UM ’藉此方式’當該第二滑執座 4相對於該第-滑軌座3直線運動,該二滑動件$之、、典動片 51移動至該容置槽31之末端時,恰可被該端蓋件7:擋制 ,而不會突出於該第一滑軌座3外,進而使該滑動件5達 到不易脫落之功效。 3運 當該第二滑執座4相對於該第一滑軌座3直線運動時 ,该弟二滑軌座4之滑移銷42是於該第一滑執座3之限位 7如内滑移,當該滑移鎖42移動至該限位槽如之末端 日禮會被該第-滑軌座3阻撞而不再㈣,藉此方式 鎖該限位槽331内移動,而界定出該第二 /月執座4之移動路徑。 芬閱圖3、4,去兮笛-、風紅士 3直線運動而其—端; 知伸出違弟―滑軌座3時(如圖3中假想 刮塵部62可個別接觸並清潔位於該第二滑轨 座4之兩滑槽内的第一 限位俨43 m _限位# 43表面,而使該等第- 沾附灰塵,每一滑動件5之該等滾珠52與 留;7Ζ:3的接觸面即可保持平滑,不會因兩者之間殘 塵雜質,而導致過大的摩擦阻力,以致該第 一)月軌座4相對於該第一滑軌座3產生不易順暢滑動的現M289820 As a linear guiding mechanism, the precision of β - V ^ 7 /Γ, bursting rail 丄 is improved, especially after long time use, the second limit in the rail groove 112 of the fixing seat η The positional rod 113 or the first limiting rod 122 in the sliding groove (2) of the sliding block 12 tends to accumulate a lot of dust, which causes the TU to accumulate excessive impurities when the linear sliding 1 is used. The phenomenon of unsmooth movement is lost, so that the fineness of the basin cloud is lost, and the service life of the linear slider 1 is even reduced. [New content] Therefore, the purpose of this new type is to provide a dust-proof linear sliding device that can effectively prevent dust accumulation and increase the service life. Therefore, the dustproof linear sliding rail device of the present invention comprises a first sliding rail seat, a first sliding seat, and two sliding parts respectively located on the sides of the whistle-, and the phoenix ten J1 y, and the Zidzi sliding seat. And a main dustproof sheet. The first sliding seat has a first end and a second end, wherein one end is a constant open end, and a receiving groove is defined between the first end and the second end, and the first sliding rail is disposed on the first sliding rail Two opposite inner wall surfaces are formed on the seat, and a rail groove is formed on each inner wall surface. The second rail seat is located in the receiving groove of the first rail seat and is slidable relative to the first sliding seat, and the second rail seat faces the opposite of the two slots of the first sliding seat The two sides are respectively opened: a-slot, and each of the chutes and the trough of each of the first-slide seats are mutually responsive. Each slider is placed between the corresponding rail groove and the sliding slot. The main dustproof sheet is fixed on the open end surface of the first slide rail seat, and defines a groove through which the second slide rail seat passes, and the opposite sides of the recess have respectively-extensible The dust scraping 6 M289820 is placed inside the chute on both sides of the second rail seat. The effect of this new type is that when the 兮筮 兮筮 ^ ^ Tian 亥 弟 - 滑 滑 滑 相对 相对 相对 相对 相对 滑 滑 滑 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对 相对The surface of the gutters on both sides is cleaned of dust and dirt. The effect of one-way anti-pressure can make the first month of the seat not slip due to the accumulation of excessive gray deer. The phenomenon of non-smoothness effectively maintains the precision of the dust-proof linear sliding device in use and improves its service life. [Embodiment] The foregoing and other technical intrinsic features, functions and effects of the present invention will be clearly shown in the detailed description of the three preferred embodiments of the underarm matching reference pattern. Before the present invention is described in detail, it is to be noted that in the following description, similar elements are denoted by the same reference numerals. Referring to Figures 2, 3 and 4, the first embodiment of the dustproof linear sliding device 2 of the present invention includes a first rail seat 3, a second rail seat 4, and a second knife. A sliding member 5 on both sides of the rail seat 4, a main dustproof sheet 6 and an end cover member 7 fixed on one end surface of the first rail seat 3. The first sliding seat 3 has a first end, a second end, and four second limiting cups 34'. In this embodiment, the first end is a constant open end, and the first end is The closed end, of course, may be the closed end of the third end, and the second end is a constant open end, and therefore should not be limited to the description of the embodiment. An accommodating groove 31 is defined between the first end and the second end of the hood. The accommodating groove M289820 31 is formed on the first sliding rail base 3 with two opposite inner wall surfaces 32 and a connecting inner wall surface 32. a closed surface 33, and a rail groove (2) is formed on each inner wall surface, and two second limiting rods 34' are disposed in each of the rails 21, and a parallel is formed on the closed surface 33. The limiting groove 331 of the groove η is accommodated, and the length of the limiting groove 331 is smaller than the length of the first sliding rail seat 3. The second rail seat 4 is located in the capacity (4) 31 of the first rail seat 3 and is slidable relative to the first rail seat 3, and the second rail seat 4 has a slider W, which is disposed on the slider a sliding pin 42 on the block 41 and in the limit of the first rail seat 3: 331, and four first-position bars 43 facing the first sliding seat 3 The opposite sides of the two rail grooves 321 are respectively provided with a sliding slot 4U, and each of the sliding slots 411 is corresponding to each of the first rail slots 32 of the first sliding bracket 3, and each sliding slot 4" There are two first limiting rods 43 at the inner interval. Each of the sliding members 5 is disposed between the corresponding rail groove 321 and the sliding groove ,η, and has a sliding piece 51 interposed between the second sliding seat 4 and the first sliding rail seat 3, and plural The balls 52 that are spaced apart from the sliding piece 51 can be rolled along the two second limiting rods 34 in the corresponding slots 321 of the two first-position bars 2 in the sliding slot 411. The frictional force when the second sliding seat 4 slides relative to the first sliding rail seat 3 is reduced. The main dust-proof sheet 6 is fixed on one end of the first sliding seat 3 and has a groove 6 through which the second sliding rail $4 passes. The two sides of the groove 611 are opposite to each other. Each of the upper portion has a dust-removing portion 62 extending into the second sliding rail seat: the inside of the sliding groove 411 on both sides, and each of the dust portions is made of an elastic material such as rubber 8 M289820 rubber. The end cover member 7 is locked on the main dustproof sheet 6, that is, the main dustproof sheet 6 is interposed between the end cover member 7 and the first end door of the first sliding seat 3 and fixed. The end cover member 7 is provided with an end groove 71' for the second seat 4 to extend, and the distance between the two sides of the end groove 71 is smaller than the first slide rail ^ UM 'in this way' The sliding seat 4 is linearly moved relative to the first sliding rail seat 3, and the two sliding members $, the pawn moving piece 51 are moved to the end of the receiving groove 31, and are just blocked by the end cover member 7: The protrusion 5 does not protrude beyond the first rail seat 3, so that the slider 5 can be prevented from falling off. 3 When the second sliding seat 4 moves linearly relative to the first sliding rail seat 3, the sliding pin 42 of the second sliding rail seat 4 is within the limit 7 of the first sliding seat 3 Sliding, when the sliding lock 42 is moved to the limit slot, the end of the day is blocked by the first-slide rail 3 and no longer (four), thereby locking the movement in the limiting slot 331 to define The movement path of the second/month seat 4 is released. Fen read Figure 3, 4, go to the whistle -, the wind red 3 linear motion and its end; know to extend the violation of the brother - slide seat 3 (as shown in Figure 3, the imaginary dusting part 62 can be individually contacted and cleaned The first limit 俨43 m _ limit # 43 surface in the two chutes of the second rail seat 4, so that the first - adhered dust, the balls 52 of each sliding member 5 and the remaining; 7 Ζ The contact surface of :3 can be kept smooth without excessive frictional friction between the two, so that the first) moon rail seat 4 is not easy to slide smoothly with respect to the first rail seat 3. Present
M289820 象。 多閱圖5、6,本新型防塵式線性滑軌裝 佳實施例大致類似於該第一較佳實施例,不同之;第二較 .5亥防塵式線性滑執裝置2更包含有-個副防塵:8 : 防塵片8且古# 变片8 ’该副 蜃巧《具有一盍設於該第二滑執座4之一 部8一於該固定部81之兩側且突出於 ::的除塵部82,每一除塵部82則是由橡膠等彈性“ 一::第二滑軌座4相對於該第-滑執座3直線運動而 其一端縮入該第-滑執座3内部時,該副防塵# 8之該二 除塵部82可個難觸並清潔位於該第—滑執座3之兩執槽 321内的第二限位桿34,以使該等第二限位桿μ不易沾附 灰塵,每一滑動件5之該等滾珠52與第二限位桿34的接 觸面即可保持平滑,可進一步地使該第二滑執座4相對於 該第一滑執座3更為順暢地滑動。 參閱圖7 ’本新型防塵式線性滑執裝置2之第三較佳實 施例大致類似於該第一較佳實施例,該第三較佳實施例包 含有一第一滑軌座3、一第二滑軌座4、二分別位於該第二 滑軌座4兩側之滑動件5、二個主防塵片6、二個副防塵片 8’及一固没於該第一滑執座3之相反兩端面上的端蓋件7 在本實施例中,該第一滑執座3之第一端與第二端皆 為怪開放端’該二主防塵片6分別固設於該第一滑執座3 之相反兩端面上’藉此方式,當該第二滑執座4相對於該 10 M289820 第-滑軌座3往復直線運動,而使其兩端皆可伸 一 滑軌座3時,該第二滑軌座 ^弟限位桿43皆可括鍊為 到母一主防麈片6的刮塵部62 …只又 亦鹿夕· 月㈣用’達到不易沾附 Μ - r yi s 麈片8疋刀別固設於該 =-,月Μ 4之相反兩端面上,藉此方式,當該第二滑軌 座4相對於該第一滑執座3 罝線移動,而縮入該第一 化軌座3内部時,該第—滑難3之第二限位桿34皆 續受到每-副防塵片8的除塵部82的清潔作用,達到不易 沾附灰塵之功效’而上述之設置方式是熟悉本項技藝人士 能易於了解,因此’不應以本實施例之說明為限。 歸納上述’當g第二滑執座4相對於該第—滑軌座3 直線運動而伸出該第-滑軌座3 _,可藉由該主防塵片6 之該二刮塵部62個別接觸並清潔位於該第二滑軌座4之兩 滑槽川内的第一限位桿43,而使每一第一限位桿Μ不易 沾附灰塵,此外’為達到更佳的防塵效果,可以將該副防 塵片8設置在該第二滑軌座4之一端面上,當該第二滑執 座4相對於該第一滑執座3直線運動而縮入該第一滑軌座3 時’藉由該副防塵片8之該二除塵部82個別接觸並清潔位 於該第-滑軌座3之兩執槽321内的第二限位桿34,而使 每一第二限位# 34不易沾附灰塵,進而令該第二滑軌座4 "玄第β執座3之間不易積存灰塵雜質,避免產生滑移 不順暢的現象,有效維持該防塵式線性滑軌裝置2於使用 上之精密度,提高其使用壽命,故確實能達到本新型之功 效。 M289820 准以上所述者,僅為本新型之三較佳實施例而已,去 不,以此限定本新型實施之範圍,即大凡依本新型申於二 利範圍及新型說明内容所作之碎 合所作之間早的等效變化與修飾,皆 仍屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是一端視圖,說明習知之線性滑軌;M289820 Elephant. Referring to Figures 5 and 6, the preferred embodiment of the dust-proof linear slide assembly of the present invention is substantially similar to the first preferred embodiment, and the second comparative dust-proof linear sliding device 2 further includes a Vice dustproof: 8: Dust-proof piece 8 and ancient #Variation 8 'The sub-defective piece has one of the two portions 8 disposed on the second sliding seat 4 on both sides of the fixing portion 81 and protrudes from: The dust removing portion 82 is made of rubber or the like. "One: the second rail seat 4 linearly moves relative to the first sliding seat 3 and one end thereof is retracted into the first sliding seat 3 The second dust removing portion 82 of the sub dustproof member 8 can hardly touch and clean the second limiting rod 34 located in the two holding slots 321 of the first sliding seat 3 to make the second limiting rods μ is not easy to adhere to dust, and the contact surface of the balls 52 and the second limiting rod 34 of each sliding member 5 can be kept smooth, and the second sliding seat 4 can be further made relative to the first sliding seat. 3 sliding more smoothly. Referring to Figure 7 'The third preferred embodiment of the present dust-proof linear sliding device 2 is substantially similar to the first preferred embodiment, the third preferred embodiment package There is a first sliding rail seat 3, a second sliding rail seat 4, two sliding members 5 respectively located on two sides of the second sliding rail seat 4, two main dustproof sheets 6, two secondary dustproof sheets 8' and a solid The end cap member 7 on the opposite end faces of the first sliding seat 3 is in the embodiment, the first end and the second end of the first sliding seat 3 are both open ends. The sheets 6 are respectively fixed on opposite end faces of the first sliding seat 3. In this way, when the second sliding seat 4 reciprocates linearly with respect to the 10 M289820 first sliding rail seat 3, two When the end of the slide rail seat 3 can be extended, the second slide rail seat hinge rod 43 can be chained to the scraping portion 62 of the main main anti-snag sheet 6 ... only for the Lu Xi· month (4) 'It is not easy to stick Μ - r yi s 麈 疋 8 疋 别 固 固 固 固 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = When the third wire is moved and retracted into the first rail seat 3, the second limiting lever 34 of the first sliding door 3 is continuously cleaned by the dust removing portion 82 of each of the dustproof sheets 8. Achieve the effect of not easily adhering to dust' The above arrangement is familiar to those skilled in the art, and therefore should not be limited to the description of the embodiment. It is summarized that the 'second glide seat 4 is linearly moved relative to the first slide seat 3 And extending the first slide rail seat 3 _, the two scraping portions 62 of the main dustproof sheet 6 can individually contact and clean the first limit rod located in the two chutes of the second slide rail seat 4 43, so that each of the first limiting rods is not easy to adhere to dust, and in addition, in order to achieve a better dustproof effect, the secondary dustproof sheet 8 can be disposed on one end surface of the second sliding rail seat 4, when When the second sliding seat 4 is linearly moved relative to the first sliding seat 3 and retracted into the first sliding rail seat 3, the two dust removing portions 82 of the secondary dustproof sheet 8 are individually contacted and cleaned at the first portion. The second limiting rod 34 in the two slots 321 of the sliding rail seat 3 makes it difficult for each second limiting position 34 to adhere to the dust, so that the second sliding rail seat 4 " It is difficult to accumulate dust and impurities between the two, so as to avoid the phenomenon that the slippage is not smooth, and the precision of the dustproof linear slide device 2 is effectively maintained, and the precision is improved. Life, it does achieve the efficacy of this novel. M289820 is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the combination of the new application and the new description. The early equivalent changes and modifications are still within the scope of this new patent. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an end view showing a conventional linear slide;
圖2是一立體分解圖,說明本新型防塵式線性滑 置之第一較佳實施例; " 圖3是一局部立體圖 完成態樣; 說明該第一較佳實施例之組裝 圖4是一局部剖視圖,說明該第—較佳實施例,其中 ’-個主防塵片接觸並清潔兩個第_限位桿的狀態; 圖5是-局部立體圖,說明本新型防塵式線性滑軌裝 置:第二較佳實施例,|中’一個副防塵片接觸並清潔兩 個第二限位桿的狀態;2 is an exploded perspective view showing the first preferred embodiment of the dust-proof linear sliding device of the present invention; FIG. 3 is a partial perspective view showing the assembled state of the first preferred embodiment; A partial cross-sectional view illustrating the first preferred embodiment, wherein 'the main dust-proof sheets contact and clean the state of the two _ limit rods; FIG. 5 is a partial perspective view showing the dust-proof linear slide device of the present invention: In a second preferred embodiment, the state in which a pair of sub-dust sheets contact and clean the two second limit rods;
圖6是一局部剖視圖,辅助說明圖$所示之該第二較 佳實施例;及 —圖7是一俯視圖,說明本新型防塵式線性滑執裝置之 第三較佳實施例。 12 M289820 【主要元件符號說明】 2 防塵式線性滑軌 43 第一限位桿 裝置 5 滑動件 3 第一滑執座 51 滑動片 31 容置槽 52 滾珠 32 内壁面 6 主防塵片 321 軌槽 611 凹槽 33 封閉面 62 刮塵部 331 限位槽 7 端蓋片 34 第二限位桿 71 端槽 4 第二滑軌座 8 副防塵片 41 滑塊 81 固定部 411 滑槽 82 除塵部 42 滑移銷Figure 6 is a partial cross-sectional view for assistance in explaining the second preferred embodiment shown in Figure $; and - Figure 7 is a top plan view showing a third preferred embodiment of the dust-proof linear sliding device of the present invention. 12 M289820 [Description of main component symbols] 2 Dust-proof linear slide rail 43 First limit lever device 5 Slider 3 First slide seat 51 Slide piece 31 accommodating groove 52 Ball 32 Inner wall surface 6 Main dust-proof piece 321 Track groove 611 Groove 33 Closed surface 62 Dust scraping portion 331 Limiting groove 7 End cap piece 34 Second limiting rod 71 End groove 4 Second rail seat 8 Sub-dusting piece 41 Slider 81 Fixing portion 411 Chute 82 Dust removal part 42 Slip Transfer