1345185 .九、發明說明： ：【發明所屬之技術領域】 本發明涉及一種升降機構，尤其涉及一種用於調節顯示 器高度之升降機構。 【先前技術】 隨著電腦之廣泛應用，其功能日益增加與完善，其體積 也趨向於輕薄化發展。由於液晶顯示裝置相對CRT(Cathode Ray Tube，陰極射線管）顯示器具有體積小、重量輕之優點， _ 故其逐漸取代CRT顯示器成為電腦之主要部件。為了方便 人們從不同視角觀看液晶顯示器，習知液晶顯示裝置上通常 設有升降機構以對液晶顯示器之高度進行調整。 如圖1所示，一種習知調節液晶顯示器高度之升降機構 1〇〇，其包括：一基座10、一升降塊20及一卷簧30。該基 座10上開設有一槽道11，該槽道11内設有二相對之滑轨 12，且該槽道11之外緣頂端設有固定孔13。該升降塊20 $可插入基座10之滑軌12内並可相對基座10滑動，該升降 塊20之頂端設有與液晶顯示器相連之連接部21，該升降塊 20之底端開設有二螺孔22。該卷簧30之一端固定於一軸桿 31上，該軸桿31之二端分別開設有固定孔311，固定件33 穿過軸桿31之固定孔311及基座10上之固定孔13將軸桿 31鎖合至基座10;該卷簧30之另一端開設有二通孔32,固 定件36穿過該卷簧30之通孔32及升降塊20之螺孔22將 該卷簧30之端部鎖合至升降塊20。 使用時，施力下壓與升降塊20相連之液晶顯示器，以 1345185 .使升降塊20下降到適當之位置，然後鬆開手，則該液晶顯 /示器與升降塊20之重力可與卷簧30之回復力、升降塊20 與基座10之間之摩擦力達到平衡而使該升降塊20定位；如 需升高液晶顯示器，則施加向上之推力於液晶顯示器上，該 推力與卷簧30之回復力可克服液晶顯示器與升降塊20之重 力及升降塊20與基座10之摩擦力，將升降塊20升高至預 定位置。 然，該種升降機構係採用升降塊與升降座相配合之滑動 •結構，故為保證升降塊具有足夠之強度支撐液晶顯示器，該 升降塊通常具有較大之重量與體積，而與該升降塊相配合之 升降座也相應具有較大之重量與體積，從而導致整個升降機 構之具有較大之重量及較高之製造成本。 【發明内容】 鑒於以上内容，有必要提供一種具較小重量及較低製造 成本之升降機構。 φ 一種升降機構，包括一支架、一滑動件、一卷箐及至少 一連接組件；該支架上開設有二相對之滑槽；該至少一連接 組件設置於支架之二滑槽中以連接支架與滑動件，該連接組 件包括至少二滾輪，該二滾輪分別可滾動地設於支架之二滑 槽中；該卷簧之一端與支架相連接，另一端繞設於滑動件或 連接組件上。 相較習知技術，所述升降機構係採用至少一連接組件連 接滑動件及支架，且該連接組件中之滾輪可滚動地設於支架 之滑槽中，以使該滑動件可於支架上運動，故該種升降機構 1345185 .只需使支架具有足夠之強度支撐液晶顯示器即可，而滑動件 則可輕薄化，從而使該升降機構具有較小之重量以及較低之 製造成本。 【實施方式】 本發明之較佳實施例公開一種升降機構，其適用於帶有 顯示器之電子裝置。在本實施例中，以液晶顯示裝置為例加 以說明。 請參閱圖2，液晶顯示裝置40包括一液晶顯示器41、 鲁一底座42與一連接液晶顯示器41與底座42之升降機構50。 請參閱圖3,本較佳實施例所述之升降機構50包括一支 架51、一滑動件52、一摩擦件53、一彈片54、一墊塊55、 一卷簧56、一轉軸57、二第一連接組件58及二第二連接組 件59 〇 所述支架51包括一底板512及由該底板512二相對側 邊垂直該底板512延伸形成之二侧擋板514，該底板512中 φ部形成有一凹槽5121，該二侧擋板514上分別開設有一滑槽 516。該支架51由鈑金製成，且其側擋板514之滑槽516係 藉由衝壓形成。支架51靠近該滑槽516之二端處還分別設 有一連接二側擋板514之橫桿518。 請一併參閱圖4,所述滑動件52包括一基板522及與該 基板522二相對側邊垂直相連之二連接片524，且該連接片 524之長度大於基板522之長度。該連接片524上分別開設 有供第一連接組件58穿設之第一固定孔5242及供第二連接 組件59穿設之第二固定孔5244，且其中一連接片524之邊 1345185 .緣垂直該連接片524延伸有一定位片526。該定位片526中 /央開設有一螺孔5262,該定位片526之二侧分別設有一凸起 527。該基板522中部沿遠離連接片524方向延伸有二固定 片528，該固定片528用於連接至液晶顯示器41。 所述摩擦件53在本實施例中為一塑膠件，其上開設有 二方形孔532。該摩擦件53可鉚接於滑動件52之凸起527 上。 所述彈片54設置於定位片526及摩擦件53之間，螺絲 籲 60穿過定位片526上之螺孔5262，抵壓在該彈片54上。 所述墊塊55之一端開設有複數固定孔552，且該墊塊 55用於固定地嵌入支架51之凹槽5121中。 所述卷簧56之一端開設有複數與墊塊55之固定孔552 相對應之通孔562，並藉由螺絲70固定至墊塊55，另一端 捲曲成一筒狀部564。 所述轉軸57包括一圓柱狀之主體部572及於該主體部 • 572 —側延伸形成之直徑大於該主體部572之凸緣部574， 該主體部572可插入卷簧56之筒狀部564中。該轉軸57沿 其軸向開設有一圓形通孔576。 所述第一連接組件58包括第一樞軸582、滾輪584、墊 片586及螺母588。該第一樞軸582依次包括軸帽5822、軸 體部5824、螺合部5826及軸端5828，該軸端可插入轉軸57 之通孔576中。該滾輪584包括一圓盤狀之本體5842及由 該本體5842中部向外延伸形成之直徑小於本體5842之滚動 部5844，該滾動部5844用於可滑動地與侧擋板514上之滑 1345185 .槽516配合。該滚輪584中央開設有一貫穿該滚輪584之貫 /貫穿孔，該貫穿孔之直徑小於軸帽5822之寬度。該墊片586 中部開設有一通孔5862。該第一連接組件58穿過側擋板514 上之滑槽516及連接片524上之第一固定孔5242,從而將滑 動件52連接至支架51。 所述第二連接組件59包括第二樞軸592、滚輪594、墊 片596及螺母598。該第二樞軸592包括一軸體部5922，該 軸體部5922二端分別延伸有一軸帽5924及一螺合部5926。 •該滾輪594包括一圓盤狀之本體5942及由該本體5942中部 向外延伸形成之直徑小於本體5942之滾動部5944，該滾動 部5944用於可滑動地與侧擋板514上之滑槽516配合。該 滚輪594中央開設有一貫穿該滚輪594之貫穿孔5946,該貫 穿孔5946之直徑小於轴帽5924之寬度。該墊片596中部開 設有一通孔5962。該第二連接組件59穿過側擋板514之滑 槽516及連接片524之第二固定孔5244,以進一步加強滑動 φ件52與支架51間之連接。 請參閱圖3至圖5，裝配該升降機構50時，將墊塊55 卡入底板512之凹槽5121中，接著用螺絲70將卷簣56 — 端鎖合於墊塊55上，並將轉軸57之主體部572插入卷簧56 之筒狀部564 t。然後將滚輪584之滾動部5844及滾輪594 之滾動部5944從該支架51内側分別卡入滑槽516中。將摩 擦件53鉚接於滑動件52之凸起527上，並使彈片54卡入 定位片526及摩擦件53之間，接著將螺絲60穿過定位片526 之螺孔5262，並抵壓於彈片54上。再將滑動件52置於支架 10 1345185 .51之二侧擋板514之間，並使滑動件52之連接片524與支 .'架51之侧擋板514相對，此時，摩擦件53與支架51之底 板512相抵。接著將二第一樞轴582分別從該支架51外側 依次穿過滾輪584之貫穿孔5842、墊片586上之通孔5862、 連接片52上之第一固定孔5242後，將螺母588螺合於該第 一樞軸582之螺合部5826上，接著將第一樞軸582之軸端 5828穿入轉軸57之通孔576中，以將支架51、滑動件52 及卷簧56連接在一起。然後按照與第一連接組件58相同之 鲁組合方式將第二連接組件59組裝好。裝配完畢後，該滑動 件52即可在支架51内於二橫桿518之間内滑動，且可在該 二橫桿518之間之任意位置定位。藉由鎖合件可將液晶顯示 器41鎖合於滑動件52上。 請參閱圖2至圖5，當使用升降機構50調節液晶顯示器 41之高度時，只需向該液晶顯示器41施加向下或向上之作 用力，以使該滑動件52相對支架51滑動，當滑動件52運 φ 動至預定位置時，停止對液晶顯示器41施加作用力，滑動 件52在卷簧56之回復力、摩擦件53與支架51之間之摩擦 力及滑動件52與液晶顯示器41之重力共同作用下達到平 衡，可停止於該預定位置。 相較於習知升降機構，該升降機構50係採用二第一連 接組件58及二第二連接組件59連接滑動件52及支架51， 且該第一、第二連接組件58、59中之滚輪584、594分別卡 入支架51之滑槽516,以使該滑動件52於支架51内運動， 故該種升降機構50只需使支架51具有足夠之支撐強度即 11 1345185 .可，而滑動件52則可輕薄化，從而使該升降機構50具有較 /小之重量以及較低之製造成本。而且，習知升降機構對其内 之滑執之加工精度要求較高，故製造成本也較高，而該升降 機構50之支架51内不需設置滑執，故該支架51可一體製 造，於支架51上沖出所述滑槽516即可，加工較為方便且 製造成本較低。另，相對採用齒輪與螺桿相配合之升降機 構，該升降機構50還具有結構簡單，易於組裝之優點。 此外，該滑動件52上安裝有一摩擦件53，且該摩擦件 ® 53與支架51相接觸，故當液晶顯示裝置40在靜止狀態下受 到向下之外力衝擊時，與該液晶顯示器41相連之滑動件52 會相對支架51產生運動趨勢，此時，支架51對摩擦件53 之靜摩擦力將增大，從而抵消作用在液晶顯示器41上之外 力，以使該液晶顯示裝置40保持穩定，從而可有效防止人 們在使用液晶顯示裝40置之過程中，發生液晶顯示器41突 然下落之情況。 φ 可以理解，本發明之升降機構50也可僅包括一連接組 件，該連接組件可由一較長之樞軸及套合於該樞轴二端之滾 輪組成。當然，該升降機構50也可包括四個以上之連接組 件，以進一步增強滑動件52及支架51之間之連接強度。本 發明之升降機構50之滑動件52上也可根據需要裝設二或二 以上之摩擦件。此外，藉由在滑動件52上設置相應之橫桿， 也可將該卷簧56之一端繞設在該滑動件52之橫桿上，另一 端固定於支架51上。 綜上所述，本發明符合發明專利要件，爰依法提出專利 12 1345185 .申請。惟，以上所述者僅為本發明之較佳實施例，舉凡熟悉 /本案技藝之人士，在爰依本發明精神所作之等效修飾或變 化，皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 圖1係一種習知升降機構之立體分解圖。 圖2係應用本發明升降機構之液晶顯示裝置之立體圖； 圖3係本發明升降機構較佳實施例之立體分解圖； 圖4係本發明升降機構較佳實施例之另一視角之立體分 鲁解圖； 圖5係本發明升降機構組裝後之立體圖。 【主要元件符號說明】 (本發明） 升降機構 50 支架 51 底板 512 凹槽 5121 擋板 514 滑槽 516 橫桿 518 滑動件 52 基板 522 連接片 524 第一固定孔 5242 第二固定孔 5244 定位片 526 螺孔 5262 凸起 527 固定片 528 摩擦件 53 方形子L 532 彈片 54 墊塊 55 固定子L 552 卷簧 56 通孔 562 轉軸 57 13 57413451851345185. IX. INSTRUCTIONS: TECHNICAL FIELD OF THE INVENTION The present invention relates to a lifting mechanism, and more particularly to a lifting mechanism for adjusting the height of a display. [Prior Art] With the wide application of computers, their functions are increasing and perfecting, and their volume tends to be thinner and thinner. Since the liquid crystal display device has the advantages of small size and light weight relative to a CRT (Cathode Ray Tube) display, it has gradually replaced the CRT display as a main component of the computer. In order to facilitate the viewing of the liquid crystal display from different perspectives, conventional liquid crystal display devices are usually provided with a lifting mechanism to adjust the height of the liquid crystal display. As shown in FIG. 1, a conventional lifting mechanism for adjusting the height of a liquid crystal display includes a base 10, a lifting block 20 and a coil spring 30. A groove 11 is defined in the base 10. The opposite side of the channel 11 is provided with two opposite rails 12, and the outer edge of the channel 11 is provided with a fixing hole 13. The lifting block 20 can be inserted into the sliding rail 12 of the base 10 and slidable relative to the base 10. The top end of the lifting block 20 is provided with a connecting portion 21 connected to the liquid crystal display, and the bottom end of the lifting block 20 is provided with two Screw hole 22. One end of the coil spring 30 is fixed on a shaft 31. The two ends of the shaft 31 are respectively provided with fixing holes 311. The fixing member 33 passes through the fixing hole 311 of the shaft 31 and the fixing hole 13 on the base 10 to pivot the shaft. The rod 31 is locked to the base 10; the other end of the coil spring 30 is provided with a through hole 32 through which the fixing member 36 passes through the through hole 32 of the coil spring 30 and the screw hole 22 of the lifting block 20 The end is locked to the lifting block 20. In use, the liquid crystal display connected to the lifting block 20 is pressed down, and the lifting block 20 is lowered to an appropriate position by 1345185. Then, the hand is released, and the gravity of the liquid crystal display and the lifting block 20 can be rolled. The restoring force of the spring 30, the friction between the lifting block 20 and the base 10 is balanced to position the lifting block 20; if the liquid crystal display is to be raised, an upward thrust is applied to the liquid crystal display, the thrust and the coil spring The restoring force of 30 can overcome the gravity of the liquid crystal display and the lifting block 20 and the friction between the lifting block 20 and the base 10, and raise the lifting block 20 to a predetermined position. However, the lifting mechanism adopts a sliding structure in which the lifting block and the lifting seat cooperate, so that the lifting block has sufficient strength to support the liquid crystal display, and the lifting block usually has a large weight and volume, and the lifting block The matching lifting seat also has a correspondingly large weight and volume, resulting in a larger weight and a higher manufacturing cost of the entire lifting mechanism. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a lifting mechanism having a small weight and a low manufacturing cost. Φ A lifting mechanism includes a bracket, a sliding member, a winding device and at least one connecting component; the bracket is provided with two opposite sliding slots; the at least one connecting component is disposed in the two sliding slots of the bracket to connect the bracket with The sliding component comprises at least two rollers, and the two rollers are respectively rollably disposed in the two sliding slots of the bracket; one end of the coil spring is connected to the bracket, and the other end is wound around the sliding member or the connecting assembly. Compared with the prior art, the lifting mechanism uses at least one connecting component to connect the sliding member and the bracket, and the roller in the connecting component is rollably disposed in the sliding slot of the bracket so that the sliding member can be mounted on the bracket The movement, so the lifting mechanism 1345185. Only the bracket has sufficient strength to support the liquid crystal display, and the sliding member can be light and thin, so that the lifting mechanism has less weight and lower manufacturing cost. [Embodiment] A preferred embodiment of the present invention discloses a lifting mechanism suitable for an electronic device with a display. In the present embodiment, a liquid crystal display device will be described as an example. Referring to FIG. 2, the liquid crystal display device 40 includes a liquid crystal display 41, a base 42 and a lifting mechanism 50 connecting the liquid crystal display 41 and the base 42. Referring to FIG. 3 , the lifting mechanism 50 of the preferred embodiment includes a bracket 51 , a sliding member 52 , a friction member 53 , a spring piece 54 , a pad 55 , a coil spring 56 , a rotating shaft 57 , and two The first connecting component 58 and the second connecting component 59 〇 the bracket 51 includes a bottom plate 512 and two side baffles 514 extending from the opposite sides of the bottom plate 512 perpendicularly to the bottom plate 512. The φ portion is formed in the bottom plate 512. There is a groove 5121, and a sliding groove 516 is defined in each of the two side baffles 514. The bracket 51 is made of sheet metal, and the sliding groove 516 of the side fence 514 is formed by punching. A cross bar 518 connecting the two side baffles 514 is further disposed at two ends of the bracket 51 adjacent to the sliding slot 516. Referring to FIG. 4, the sliding member 52 includes a substrate 522 and two connecting pieces 524 perpendicularly connected to opposite sides of the substrate 522, and the connecting piece 524 has a length greater than the length of the substrate 522. A first fixing hole 5242 for the first connecting component 58 and a second fixing hole 5244 for the second connecting component 59 are respectively disposed on the connecting piece 524, and a side of the connecting piece 524 is 1345185. The connecting piece 524 extends with a positioning piece 526. A screw hole 5262 is defined in the center of the positioning piece 526, and a protrusion 527 is disposed on each of the two sides of the positioning piece 526. The central portion of the substrate 522 extends in a direction away from the connecting piece 524 by two fixing pieces 528 for connecting to the liquid crystal display 41. In this embodiment, the friction member 53 is a plastic member having a square hole 532 formed therein. The friction member 53 can be riveted to the projection 527 of the slider 52. The elastic piece 54 is disposed between the positioning piece 526 and the friction member 53, and the screw 60 passes through the screw hole 5262 of the positioning piece 526 to press against the elastic piece 54. One end of the spacer 55 is provided with a plurality of fixing holes 552, and the spacer 55 is fixedly embedded in the recess 5121 of the bracket 51. One end of the coil spring 56 is provided with a plurality of through holes 562 corresponding to the fixing holes 552 of the spacer 55, and is fixed to the spacer 55 by screws 70, and the other end is curled into a cylindrical portion 564. The rotating shaft 57 includes a cylindrical main body portion 572 and a flange portion 574 extending from a side of the main body portion 572 and having a larger diameter than the main body portion 572. The main body portion 572 can be inserted into the cylindrical portion 564 of the coil spring 56. in. The shaft 57 has a circular through hole 576 formed in the axial direction thereof. The first connection assembly 58 includes a first pivot 582, a roller 584, a pad 586, and a nut 588. The first pivot 582 includes, in order, a shaft cap 5822, a shaft portion 5824, a screwing portion 5826, and a shaft end 5828 that can be inserted into the through hole 576 of the rotating shaft 57. The roller 584 includes a disc-shaped body 5842 and a rolling portion 5844 extending outward from a central portion of the body 5842 and having a smaller diameter than the body 5842. The rolling portion 5844 is configured to slidably slide with the side fence 514. The slot 516 is mated. A roller/through hole penetrating through the roller 584 is defined in the center of the roller 584. The diameter of the through hole is smaller than the width of the shaft cap 5822. A through hole 5862 is defined in the middle of the spacer 586. The first connecting member 58 passes through the sliding groove 516 on the side fence 514 and the first fixing hole 5242 on the connecting piece 524, thereby connecting the slider 52 to the bracket 51. The second attachment assembly 59 includes a second pivot 592, a roller 594, a pad 596, and a nut 598. The second pivot 592 includes a shaft portion 5922, and a shaft cap 5924 and a screwing portion 5926 are respectively extended at two ends of the shaft portion 5922. The roller 594 includes a disc-shaped body 5942 and a rolling portion 5944 extending outward from a central portion of the body 5942 and having a smaller diameter than the body 5942. The rolling portion 5944 is for slidably sliding with the side baffle 514. 516 cooperation. A through hole 5946 is formed in the center of the roller 594 through the roller 594. The diameter of the through hole 5946 is smaller than the width of the shaft cap 5924. A through hole 5962 is opened in the middle of the spacer 596. The second connecting component 59 passes through the sliding slot 516 of the side fence 514 and the second fixing hole 5244 of the connecting piece 524 to further strengthen the connection between the sliding member 52 and the bracket 51. Referring to FIG. 3 to FIG. 5, when the lifting mechanism 50 is assembled, the spacer 55 is inserted into the recess 5121 of the bottom plate 512, and then the end of the winding 56 is locked to the spacer 55 by the screw 70, and the rotating shaft is pivoted. The main body portion 572 of 57 is inserted into the tubular portion 564 t of the coil spring 56. Then, the rolling portion 5844 of the roller 584 and the rolling portion 5944 of the roller 594 are respectively inserted into the chute 516 from the inside of the bracket 51. The friction member 53 is riveted to the protrusion 527 of the sliding member 52, and the elastic piece 54 is caught between the positioning piece 526 and the friction member 53, and then the screw 60 is passed through the screw hole 5262 of the positioning piece 526, and is pressed against the elastic piece. 54 on. Then, the sliding member 52 is placed between the two side baffles 514 of the bracket 10 1345185 .51, and the connecting piece 524 of the sliding member 52 is opposed to the side baffle 514 of the bracket 51. At this time, the friction member 53 and The bottom plate 512 of the bracket 51 abuts. Then, the two first pivots 582 are sequentially inserted from the outside of the bracket 51 through the through hole 5842 of the roller 584, the through hole 5862 on the spacer 586, and the first fixing hole 5242 on the connecting piece 52, and then the nut 588 is screwed. On the screwing portion 5826 of the first pivot 582, the shaft end 5828 of the first pivot 582 is then inserted into the through hole 576 of the rotating shaft 57 to connect the bracket 51, the slider 52 and the coil spring 56 together. . The second connection assembly 59 is then assembled in the same manner as the first connection assembly 58. Once assembled, the slider 52 is slidable within the bracket 51 between the two crossbars 518 and can be positioned anywhere between the two rails 518. The liquid crystal display 41 can be locked to the slider 52 by a locking member. Referring to FIG. 2 to FIG. 5, when the height of the liquid crystal display 41 is adjusted by using the lifting mechanism 50, it is only necessary to apply a downward or upward force to the liquid crystal display 41 to slide the slider 52 relative to the bracket 51 when sliding. When the member 52 moves to the predetermined position, the application of the force to the liquid crystal display 41 is stopped, the restoring force of the slider 52 at the coil spring 56, the friction between the friction member 53 and the bracket 51, and the slider 52 and the liquid crystal display 41 The balance is reached by gravity and can be stopped at the predetermined position. Compared with the conventional lifting mechanism, the lifting mechanism 50 connects the sliding member 52 and the bracket 51 by using the two first connecting components 58 and the second connecting components 59, and the rollers in the first and second connecting components 58, 59 584, 594 are respectively inserted into the sliding groove 516 of the bracket 51 to move the sliding member 52 in the bracket 51. Therefore, the lifting mechanism 50 only needs to have sufficient supporting strength of the bracket 51, that is, 11 1345185. 52 can be thinned, so that the lifting mechanism 50 has a relatively small weight and a low manufacturing cost. Moreover, the conventional lifting mechanism has high processing precision for the slippery inside, so the manufacturing cost is also high, and the sliding bracket is not required in the bracket 51 of the lifting mechanism 50, so the bracket 51 can be integrally manufactured. The sliding groove 516 can be punched out on the bracket 51, which is convenient to process and low in manufacturing cost. In addition, the lifting mechanism 50 has the advantages of simple structure and easy assembly, as opposed to the lifting mechanism in which the gear and the screw are matched. In addition, a friction member 53 is mounted on the sliding member 52, and the friction member® 53 is in contact with the bracket 51. Therefore, when the liquid crystal display device 40 is subjected to a downward external force in a stationary state, it is connected to the liquid crystal display 41. The sliding member 52 will have a tendency to move relative to the bracket 51. At this time, the static friction force of the bracket 51 against the friction member 53 will increase, thereby canceling the external force acting on the liquid crystal display 41, so that the liquid crystal display device 40 remains stable. It is effective to prevent people from suddenly dropping the liquid crystal display 41 during use of the liquid crystal display device 40. φ It will be understood that the lifting mechanism 50 of the present invention may also include only one connecting member which may be comprised of a longer pivot and a roller that fits over the two ends of the pivot. Of course, the lifting mechanism 50 may also include more than four connecting members to further enhance the strength of the connection between the slider 52 and the bracket 51. The sliding member 52 of the elevating mechanism 50 of the present invention may be provided with two or more friction members as needed. Further, by providing a corresponding cross bar on the slider 52, one end of the coil spring 56 can be wound around the cross bar of the slider 52, and the other end can be fixed to the bracket 51. In summary, the present invention complies with the requirements of the invention patent, and patents 12 1345185. However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be covered by the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of a conventional lifting mechanism. 2 is a perspective view of a liquid crystal display device to which the lifting mechanism of the present invention is applied; FIG. 3 is an exploded perspective view of a preferred embodiment of the lifting mechanism of the present invention; FIG. 4 is a perspective view of another embodiment of the lifting mechanism of the present invention. Figure 5 is a perspective view of the lifting mechanism of the present invention assembled. [Main component symbol description] (Invention) Lifting mechanism 50 Bracket 51 Base plate 512 Groove 5121 Baffle 514 Chute 516 Crossbar 518 Slide 52 Substrate 522 Connecting piece 524 First fixing hole 5242 Second fixing hole 5244 Positioning piece 526 Screw hole 5262 Raised 527 Fixing piece 528 Friction piece 53 Square piece L 532 Spring piece 54 Block 55 Fixing piece L 552 Coil spring 56 Through hole 562 Rotary shaft 57 13 5741345185
主體部 5Ί2 凸緣部 圓形通孔 576 第一連接組件 第一樞軸 582 軸帽 軸體部 5824、 5922 螺合部 軸端 5828 滾輪 本體 5842、 5942 滾動部 貫穿孔 5846 > 5946 墊片 通孔 5862、 5962 螺母 第二連接組件59 第—框轴 螺絲 60 ' 70 (習知） 升降機構 100 基座 槽道 11 滑軌 固定孔 13 、 311 升降塊 連接部 21 螺孔 卷簧 30 轴桿 通孔 32 固定件 58 5822 ' 5924 5826 、 5926 584 、 594 5844 、 5944 586 ' 596 588 、 598 592 10 12 20 22 31 33、36Main body portion 5Ί2 Flange portion circular through hole 576 First connection assembly First pivot shaft 582 Shaft cap shaft body portion 5824, 5922 Screw portion shaft end 5828 Roller body 5842, 5942 Rolling portion through hole 5846 > 5946 Gasket Hole 5862, 5962 nut second connection assembly 59 first frame shaft screw 60 ' 70 (conventional) lifting mechanism 100 base channel 11 slide rail fixing hole 13, 311 lifting block connection portion 21 screw hole spring 30 shaft pass Hole 32 fixing member 58 5822 ' 5924 5826 , 5926 584 , 594 5844 , 5944 586 ' 596 588 , 598 592 10 12 20 22 31 33, 36