M336498 八、新型說明： 【新型所屬之技術領域】 本創作係有關於一種演示機械工作原理之教具，尤指 一種演示簡單機械工作原理之教具。 【先前技術】M336498 VIII. New Description: [New Technology Field] This creation department is about a teaching aid that demonstrates the working principle of machinery, especially a teaching aid that demonstrates the working principle of simple machinery. [Prior Art]
在教學過財，通常為使學f者缺容易理解複雜的 =所代表之意義，教學者通常都需要手纟t各種示意圖以 輔助教學。_’徒手㈣通常會產线差，讓學 ，且繪製示意圖亦非常耗時。☆，如何製二一 教具，以輔賴學者方錄學，奸業界努力之目標 【新型内容】 之勃ί創作之主要目的，在於提供—種演示機械工作原理 將輪姉、活騎輪、賴、_體、掛式 “=:學合:以演示簡單機械之多種工作原理， 之教2創！!之*要目的’在於提供—種演示機械工作原理 活==槽以改變活動滑輪之位置，使得輪轴哭、 力之=。、_體、掛式滑輪及帶體之組合可演示滑ς施 之教ί創二的::於提供-種演示機械工作原理 ，、其固疋才干可固設有至少一磁鐵，使得教具可吸附 5 M336498 於可磁吸物體上，以方便進行教學。 本創作之又一目的，在於提供一種演示機械工作原理 之教具，其活動滑輪可固定於固定桿上，以避免教具於操 作時讓活動滑輪產生位移，而影響教學過程。 本創作之又一目的，在於提供一種演示機械工作原理 之教具’其帶體之一端可透過一固定器以固定於輪軸器或 活動滑輪上，以方便操作者。 _ 為此，為達成上述目的，本創作提供一種演示機械工 •作原理之教具，主要係包括有：一滑輪組，包括有一固定 桿、一輪軸器及一活動滑輪，其中，輪軸器固設於固定桿 上，而活動滑輪則藉由一限位體穿設於固定桿之一溝槽， 致使活動滑輪沿溝槽而於—特定區間内滑移；及一環體， 圈繞於該輪軸器之一輪軸器輪廓及該活動滑輪之一活動滑 輪輪廓上。 【實施方式】 首先，凊同時參閱第圖至第1B圖，如圖所示， ， 本創作之，具_如第Ί B圖所示）主要可包括有一滑輪 • 組如第1 A圖所示）及一環體20(如第i B圖所示）， 3輪組1〇(如第1A圖所示）包括有一固定桿u、一輪轴 器12及-活動滑輪13，並於輪軸器12之一輪轴器輪廊 121及^動滑輪13之—活崎輪輪廓131上圈繞有環體 20(如第1 B圖所不）。其中，輪轴器12固設於固定桿u 上’而活動α輪13則藉由_限位體132(例如：螺絲）穿設 6 M336498 於固定桿11之_ ϋ 1 ^ m而於-特奸=111 ’致使活動滑輪13可沿溝槽 Β ί !^t# ° ijC ' 100^^ 1 者i行教學。’讀早機械之多種工作原理，以辅助教學 =驅動輪轴1112進行轉動時，圈繞於輪轴器 因為邀1動滑輪輪廓131上之環體2〇(如第1 B圖所 不：^ *軸盗輪廓121產生磨擦力而連動，於是環 體20= 舌動滑輪輪廓131亦產生磨擦力，使環體2〇帶動 活動二3轉動’以演轉動原理。反之，亦可驅動活 動滑輪以使環體2”動輪軸器12轉動者，於此則不 加贅=本創作一實施例中’輪軸器12及活動滑輪13 可為二輪（未顯示），而環體2〇(如第1B圖所示）表面亦 相對"又複數個嗜合齒（未顯示）。藉由兩者相互响合，使 知本=之教具1QQ(如第1B圖所示）除了可演示傳動原 理外，尚可演示齒輪之運作原理。 f定桿11相對於輪軸器12及活動滑輪13之另一侧 可CU又有至J 一磁鐵112,使得教具⑽（如第1B圖所示 )可吸附於可磁吸物體上，以方便進行教學。 請參閱第2圖，如圖所示，於本創作其中一實施例中 ’限位體132可為一夾固器，藉由限位體132及活動滑輪 13將固定桿11夾固於其中，使活動滑輪13蚊於固定桿 11上，以避免教具（1〇〇)於操作時讓活動滑輪13產生位移 ，而影響教學過程。 晴參閱第3圖至第8圖，如圖所示，為演示更多種簡 7 M336498 單機械之工作原理’本創作之教具100尚包括有複數個懸 掛體30(例如：砝碼）、至少一掛式滑輪4〇及至少一帶體 50。其中，各懸掛體30之-端設置有一第一懸掛體掛勾 31。而掛式滑輪40之一掛式滑輪轉軸42上固設有一連接 桿4卜連接桿41之兩端突設於-掛式滑輪輪廊43之外緣 ’並於連接桿41之-端設置有-第—掛式滑輪掛勾. 帶體50則可圈繞於掛式滑輪輪廓43、輪細輪靡i2i或In teaching, it is usually difficult for the learner to understand the meaning of the complex = representative, the teacher usually needs to handcuff a variety of schematic diagrams to assist teaching. _’ Freehand (4) usually produces a line difference, letting you learn, and drawing a schematic is also very time consuming. ☆, how to make the 21st teaching aids, to supplement the scholars' recordings, and to seduce the goal of the industry's efforts [new content] The main purpose of the creation is to provide a demonstration of the working principle of the machine will be rim, live riding, Lai, _ Body, hanging type "=: Xuehe: to demonstrate the various working principles of simple machinery, the teaching of 2!! The purpose of * is to provide - a demonstration of the working principle of the machine = = slot to change the position of the movable pulley, so that The combination of the axle crying, the force=., the _ body, the hanging pulley and the belt body can demonstrate the teaching of the sliding ί ί ::: Providing a kind of demonstration mechanical working principle, its solid ability can be fixed There is at least one magnet, so that the teaching aid can absorb 5 M336498 on the magnetic object for teaching. Another purpose of the present invention is to provide a teaching tool for demonstrating the working principle of the machine, wherein the movable pulley can be fixed on the fixed rod. In order to prevent the teaching aid from shifting the movable pulley during operation, the teaching process is affected. Another object of the present invention is to provide a teaching aid for demonstrating the working principle of the mechanical machine, one end of which can be passed through a holder. It is fixed on the axle or the movable pulley to facilitate the operator. _ To this end, in order to achieve the above objectives, the present invention provides a teaching aid for demonstrating the mechanics and working principle, mainly including: a pulley block including a fixed rod and a An axle and a movable pulley, wherein the axle is fixed on the fixed rod, and the movable pulley is disposed in a groove of the fixed rod by a limiting body, so that the movable pulley is along the groove in a specific interval a slip; and a ring body, wound around one of the axle profile of the axle and the movable pulley profile of one of the movable pulleys. [Embodiment] First, at the same time, refer to the figure to the first figure, as shown in the figure, , the creation of the _, as shown in Figure B) can mainly include a pulley • group as shown in Figure 1A) and a ring 20 (as shown in Figure i B), 3 wheels 1 〇 ( As shown in FIG. 1A, there is a fixed rod u, an axle 12 and a movable pulley 13, and is wound around the aerodynamic wheel profile 131 of one of the axle axles 121 and the movable pulley 13 of the axle 12 Ring body 20 (as shown in Figure 1B), wherein the axle 12 is fixed The fixed rod u is on the upper side and the movable α wheel 13 is passed through the _limit body 132 (for example, a screw) through 6 M336498 on the fixed rod 11 _ ϋ 1 ^ m and at the special trait = 11 11 ' to cause the movable pulley 13 to Along the trench Β ί !^t# ° ijC ' 100^^ 1 i teach. 'Read the early working principle of the machine, to assist the teaching = drive the axle 1112 to rotate, circle around the axle because of the invitation 1 The ring body 2〇 on the movable pulley profile 131 (as shown in Fig. 1B: ^ * The axis stealing profile 121 generates frictional force and interlocks, so that the ring body 20 = the tongue-and-moving pulley profile 131 also generates frictional force, so that the ring body 2〇 Actuating the activity 2 3 rotation 'to rotate the principle. On the contrary, the movable pulley can also be driven to rotate the ring body 2", and then the rotation of the axle 12 is not added. In this embodiment, the axle 12 and the activity are in the embodiment. The pulley 13 can be two wheels (not shown), and the surface of the ring body 2 (as shown in Fig. 1B) is also relatively "closed" with a plurality of fitting teeth (not shown). By combining the two, the teaching aid 1QQ (as shown in Figure 1B) can demonstrate the principle of operation of the gear in addition to demonstrating the principle of the transmission. The f-bar 11 is opposite to the other side of the axle 12 and the movable pulley 13 and has a magnet 112 to the magnet 112, so that the teaching aid (10) (as shown in FIG. 1B) can be adsorbed on the magnetically movable object for convenient operation. teaching. Referring to FIG. 2 , as shown in the figure, in one embodiment of the present invention, the limiting body 132 can be a clamp, and the fixing rod 11 is clamped therein by the limiting body 132 and the movable pulley 13 . The movable pulley 13 is placed on the fixed rod 11 to prevent the teaching aid (1〇〇) from causing displacement of the movable pulley 13 during operation, thereby affecting the teaching process. See Figures 3 to 8 for the sake of clarity. To demonstrate more of the working principle of the simple 7 M336498 single machine, the teaching aid 100 of the present invention also includes a plurality of suspension bodies 30 (for example: weights), at least A hanging pulley 4 〇 and at least one belt body 50. The first suspension body hook 31 is disposed at the end of each suspension body 30. A connecting rod 4 is fixed on one of the hanging pulley shafts 42 of the hanging pulley 40. Both ends of the connecting rod 41 protrude from the outer edge of the hanging pulley wheel gallery 43 and are disposed at the end of the connecting rod 41. - the first - hanging pulley hook. The body 50 can be hung around the hanging pulley profile 43, the wheel thin wheel 靡i2i or
活動滑輪輪靡131上，並於帶體5〇兩端分設有一雖掛孔 5卜以供第-懸掛體掛勾31或第—掛式滑輪掛勾44勾設 。懸掛體30、掛式滑輪4〇及帶體5〇與滑輪組⑽形成之 各種組合方切可演示多種簡單機械之王作原理，可敘述 如下。 例如·如第3圖及第4圖所示，帶體5〇之兩端可分 別纏，亚固^於輪軸器輪廓121及活動滑輪輪廓131上， 亚將帶體50再圈繞有掛式滑輪40，使掛式滑輪40懸掛於 輪轴12肖$動滑輪13之下方，並使第-掛式滑輪掛勾 =朝下置放。此時，輪軸器12及活動滑輪13將形成一定 /月輪’而掛式滑輪40則形成一動滑輪，藉此將可演示滑 輪&力之原理。例如··如第3圖所示，當活動滑輪於 溝槽」11内滑移並固定於-第-位置時，掛式滑輪40兩 彳、^r體50將與垂直面形成—夾角α，此時需對輪轴器 12或活動滑輪13施以-作用力F卜以帶動掛式滑輪40 =掛體30向上位移。而如第4圖所示，當活動滑輪13 U 111内滑移並固定於一第二位置時，掛式滑輪4〇 8 M336498 兩側之帶體50將與垂直面平行，此時需對輪軸器12或活 動滑輪13施以一作用力F2，以帶動掛式滑輪40及懸掛體 30向上位移。 前述第3圖及第4圖兩實施例中，作用力F1將大於 作用力F2，故，透過此實施例之教具100即可演示滑輪施 力之原理。 懸掛體30之另一端亦可設置有一第二懸掛體掛勾32 • ，以供多個懸掛體30串接並懸掛者。 • 為使帶體50之一端可固定於輪軸器12及活動滑輪13 上，於輪軸器輪廓121與活動滑輪輪廓131上可分別設有 一固定器60，以固定帶體50之一端，以方便操作者。 於其中一實施例中，固定器60係包括有一扣合突塊 61及一扣合凹槽62，扣合突塊61固設輪軸器輪廓121及 活動滑輪輪廓131上，而扣合凹槽62則固設於帶體50之 兩端，藉由扣合突塊61及扣合凹槽62相互扣合，而達成 目的，如第5圖所示。 •又，如第6圖所示，亦可將帶體50之一端纏繞並固 \ 定於輪轴器輪廓121上，再圈繞於掛式滑輪輪廓43上， 而帶體50之另一端則可由教學者持有。此時，輪軸器12 將形成一定滑輪，而掛式滑輪40則形成一動滑輪。如此 亦可演示定滑輪與動滑輪之原理。同理，帶體50之一端 亦可纏繞並固定於活動滑輪輪廓131上，再圈繞於掛式滑 輪輪廓43上，以達成相同目的者，於此則不加贅述。 請參閱第7圖，如圖所示，連接桿41之另一端尚可 9 M336498 設置有一第二掛式滑 並固定於固定禪㊣掛勾45，使得掛式滑輪4〇可勾設 具100將可透過多上，以成為一定滑輪。故本創作之教 滑輪，再透過帶體掛式滑輪40分別扮演定滑輪及/或動 連接，而形成較為馥0對各定滑輪及/或各動滑輪予以圈繞 理，於此則不加贅^切輪結構，以演*各種滑輪之原 請參閱第8圖，如圖 一The movable pulley rim 131 is provided with a hanging hole 5b at both ends of the belt body 5 for the first hanging body hook 31 or the first hanging pulley hook 44. The various combinations of the suspension body 30, the hanging pulley 4〇 and the belt body 5〇 and the pulley block (10) can demonstrate the principle of a variety of simple machines, which can be described as follows. For example, as shown in Fig. 3 and Fig. 4, the ends of the belt body 5 can be wound separately, the sub-solids are on the axle profile 121 and the movable pulley profile 131, and the sub-belt body 50 is further wound around. The pulley 40 is such that the hanging pulley 40 is suspended below the axle 12 of the axle 12 and the first suspension pulley is placed downwards. At this time, the axle 12 and the movable pulley 13 will form a certain/moon wheel' and the overhead pulley 40 will form a moving pulley, whereby the principle of the pulley & force will be demonstrated. For example, as shown in Fig. 3, when the movable pulley slides in the groove "11" and is fixed at the -first position, the two pulleys 40 and the body 50 form an angle α with the vertical surface. At this time, the axle 12 or the movable pulley 13 is subjected to a force F to drive the hanging pulley 40 = the hanging body 30 is displaced upward. As shown in Fig. 4, when the movable pulley 13 U 111 is slid and fixed in a second position, the belt 50 on both sides of the hanging pulley 4〇8 M336498 will be parallel to the vertical plane, and the axle is required at this time. The damper 12 or the movable pulley 13 exerts a force F2 to drive the hanging pulley 40 and the suspension body 30 upward. In the third embodiment of Fig. 3 and Fig. 4, the force F1 will be greater than the force F2. Therefore, the principle of the pulley force can be demonstrated by the teaching tool 100 of this embodiment. The other end of the suspension body 30 may also be provided with a second suspension body hook 32. for connecting the plurality of suspension bodies 30 in series and hanging. In order to ensure that one end of the belt body 50 can be fixed to the axle 12 and the movable pulley 13, a fixing device 60 can be respectively disposed on the axle contour 121 and the movable pulley contour 131 to fix one end of the belt body 50 for convenient operation. By. In one embodiment, the retainer 60 includes a latching projection 61 and a latching recess 62. The latching projection 61 fixes the axle profile 121 and the movable pulley profile 131, and the latching recess 62 Then, it is fixed at both ends of the belt body 50, and the fastening protrusion 61 and the fastening groove 62 are engaged with each other to achieve the purpose, as shown in FIG. • Again, as shown in Fig. 6, one end of the belt body 50 may be wound and fixed to the axle profile 121, and then wound around the overhead pulley profile 43, while the other end of the belt body 50 is Can be held by the teacher. At this time, the axle 12 will form a certain pulley, and the hanging pulley 40 will form a movable pulley. This also demonstrates the principle of the fixed pulley and the movable pulley. Similarly, one end of the belt body 50 can also be wound and fixed on the movable pulley contour 131, and then wound around the hanging pulley contour 43 to achieve the same purpose, and no further details are provided herein. Please refer to Fig. 7. As shown in the figure, the other end of the connecting rod 41 can be set with a second hanging type sliding and fixed to the fixed zen hanging hook 45, so that the hanging pulley 4 can be hooked with 100 It can be passed through to make it a certain pulley. Therefore, the teaching pulleys of this creation are respectively arranged as fixed pulleys and/or moving joints through the belt-mounted pulleys 40, and a relatively 馥0 pair of fixed pulleys and/or moving pulleys are arranged for winding, and thus no 赘^Cut the wheel structure to play the original of various pulleys, please refer to Figure 8, as shown in Figure 1.
輪廓121上，並將帶濟 田▼體50圈繞於輪軸器 兩&之懸掛孔51勾設有懸掛體30。在輪轴哭12 疑轉中心至帶體5G之兩端分別形成相同長度之—施力臂 =及-抗力臂128情況下’藉由改變帶體5()兩端之懸掛 ，30數量，即可演示槓桿原理。同理，亦可將帶體5〇圈 %於活動滑輪輪廓131上，以達成相同目的者，於此則 加贅述。 、 請參閱第9圖至第10圖，如圖所示，輪軸器12包括 有一中心軸122、一第一圓輪123及至少一第二圓輪\24 。其中’中心軸122固設於固定桿11上，而第一圓輪123 之軸心及第二圓輪124之軸心皆固設於中心軸122上，使 第—圓輪123及第二圓輪124依中心軸122轉動。於是， 環體20便可圈繞於第一圓輪123之一第一圓輪輪廓125 或第二圓輪124之一第二圓輪輪廓126上，以演示簡單機 械之工作原理。例如：本實施例中，第一圓輪1 積 略大於第二圓輪124之面積，因此，當環體2〇之一端圈 、、堯於活動滑輪13上，而環體20之另一端選擇圈繞於第一 M336498 圓輪輪廓125或第二圓輪_ 123或第二圓輪124驅動環^郅上時，藉由第一圓輪 輪13轉動所需之力量將' 20致使環體20帶動活動滑 8圖。亦即，相同地驅動第—目同，可分別參閱第7圖及第 轉-圈時，以兩者致使環體123及第二圓輪124旋 之路徑相比，第-圓輪123 轉動形成 長之路徑，但需對第一圓於 ^ ^ 轉動形成較 反之，第二圓輪124僅Hi施以較大之旋轉作用力， 路徑，但可對第三®輪124 =輪13轉動形成較短之 便可藉此教具演示絲箱之^^ΧΛΐ、之㈣伽力。故’ 顯而易見，於活動滑輪13 ^原理。且’為使演示過程 請簽閱第11圖，如圖所示， 之工作原理，本創作之教具1〇〇亦^ ^ 夕種簡單機械 30(例如：缺碼）及至少-帶體5〇 有複數個懸掛體 滑輪組（10)形成之組合及實施方式^體上帶體50與 是，透過本實施例滑輪纟且（10)之第一 n&與前述相同，但 124之結構，尚可演示其他簡單機械 及弟二圓輪 如下。 作原理，可敘述 例如··一第-帶體52之一端纏繞 輪廓125上，而一第二帶體53之一端纊4於弟一 0輪 圓輪輪廓126上。兩帶體(52、53)之另一繞並固定於第二 以於其中-帶體（52或53)勾設有懸掛體=皆==體 11 M336498 52之一第一懸掛孔54勾設有懸掛體30時，教學者藉由拉 動第二帶體53以帶動第一圓輪123及第二圓輪124旋轉 ，此時，第一帶體52將持續纏繞於第一圓輪輪廓125上 ，致使懸掛體30向上位移，以演示輪軸原理。同理，亦 可藉由拉動第一帶體52使第二帶體53之一第二懸掛孔55 勾設之懸掛體30向上位移，或是於兩帶體（52、53)之另 一端分別勾設有懸掛體30，以達成相同目的者，於此則不 加贅述。且，由於第一圓輪123之面積略大於第二圓輪 124之面積，因此，在第一圓輪123及第二圓輪124之旋 轉中心分別與帶體50(如第12圖所示）形成不同長度之一 施力臂127及一抗力臂128情況下，藉由改變帶體50兩 端之懸掛體30數量，亦可演示另一種狀況之槓桿原理。 懸掛體30之另一端亦可設置有一第二懸掛體掛勾32 ，以供多個懸掛體30串接並懸掛者。 為使帶體50之一端可固定於第一圓輪123或第二圓 輪124上’本實施例之教具1〇〇亦可設有一固定器60，而 達成目的者，固定器60之結構即如前所述，故於此則不 加贅述。 最後，請參閱第12圖，如圖所示，本實施例之教具 100亦可配合至少一掛式滑輪40以演示各種定滑輪與動滑 輪之原理，而成為另一種實施例者，其大艘結構與先前所 述各實施例相同，故於此則不加贅述。 以上所述者，僅為本創作之一較佳實施例而已，並非 用來限定本創作實施之範圍，即凡依本創作申請專利範圍 M336498 所述之形狀、構造、特徵及精神所為之均等變化與修飾， 均應包括於本創作之申請專利範圍内。 【圖式簡單說明】 第1 A圖：係為滑輪組之構造侧視圖。 第1 B圖：係為本創作教具一實施例之構造側視圖。 第2圖：係為活動滑輪一實施例之構造剖視圖。 第3圖：係為本創作教具又一實施例之構造侧視圖。 第4圖：係為本創作教具又一實施例之構造側視圖。 第5圖：係為固定器一實施例之構造剖視圖。 第6圖：係為本創作教具又一實施例之構造側視圖。 第7圖：係為本創作教具又一實施例之構造侧視圖。 第8圖··係為本創作教具又一實施例之構造側視圖。 第9圖：係為本創作教具又一實施例之構造侧視圖。 第10圖：係為本創作教具又一實施例之構造侧視圖。 第11圖：係為本創作教具又一實施例之構造侧視圖。 第12圖：係為本創作教具又一實施例之構造侧視圖。 【主要元件符號說明】 100 教具 10 滑輪組 11 固定桿 111 溝槽 112 磁鐵 12 輪軸器 121 輪軸器輪廓 122 中心軸 123 第一圓輪 124 第二圓輪 13 M336498On the contour 121, the belt body 50 is wound around the axle. The suspension hole 51 of the two & In the case of the wheel axle crying 12 suspected rotation center to the two ends of the belt body 5G respectively forming the same length - in the case of the force arm = and - resistance arm 128 - by changing the suspension of the two ends of the belt body 5 (), 30 The principle of leverage can be demonstrated. Similarly, the belt body 5 can be circled on the movable pulley contour 131 to achieve the same purpose, and the details are added here. Referring to Figures 9 through 10, as shown, the axle 12 includes a central shaft 122, a first circular wheel 123, and at least one second circular wheel\24. The central axis 122 is fixed on the fixed rod 11, and the axial center of the first circular wheel 123 and the axial center of the second circular wheel 124 are fixed on the central shaft 122, so that the first round wheel 123 and the second circle The wheel 124 rotates about the central axis 122. Thus, the ring body 20 can be wound around one of the first round wheel profile 125 of the first round wheel 123 or the second round wheel profile 126 of the second round wheel 124 to demonstrate the operation of a simple machine. For example, in this embodiment, the first round wheel 1 is slightly larger than the area of the second round wheel 124. Therefore, when one end of the ring body 2 is looped on the movable pulley 13, the other end of the ring body 20 is selected. When the first M336498 circular wheel profile 125 or the second round wheel _123 or the second round wheel 124 is driven on the ring, the force required to rotate the first circular wheel 13 will cause the ring 20 to be caused by the first circular wheel 13 Drive the activity to slide 8 map. That is, when the first and the same are driven, the first and second round wheels 123 are rotated to form a rotation of the ring body 123 and the second circular wheel 124. Long path, but need to turn the first circle to ^ ^ to form the opposite, the second round wheel 124 only applies a large rotational force, path, but can be formed on the third ® wheel 124 = wheel 13 In short, you can use this teaching aid to demonstrate the ^^ΧΛΐ, (4) Galile of the wire box. Therefore, it is obvious that on the movable pulley 13 ^ principle. And 'For the demonstration process, please sign the 11th picture, as shown in the figure, the working principle, the teaching aid of this creation is also a ^ ^ 种 simple machinery 30 (for example: missing code) and at least - belt body 5〇 The combination of the plurality of suspension body block sets (10) and the embodiment of the body upper body 50 are, through the pulley of the embodiment, and the first n& (10) is the same as the foregoing, but the structure of 124 is acceptable. Demonstrate other simple machines and two rounds as follows. As a principle, it can be described that, for example, one end of the first belt body 52 is wound around the contour 125, and one end of the second belt body 53 is wound on the contour of the wheel 126. The other of the two belts (52, 53) is wound and fixed to the second side in which the belt body (52 or 53) is hooked with a suspension body = all = = body 11 M336498 52 one of the first suspension holes 54 is provided When the suspension body 30 is present, the introducer pulls the second belt 53 to drive the first round wheel 123 and the second round wheel 124 to rotate. At this time, the first belt body 52 will continue to be wound around the first round wheel contour 125. The suspension body 30 is displaced upward to demonstrate the axle principle. Similarly, the suspension body 30, which is hooked by the second suspension hole 55 of the second belt body 53, can be displaced upward by pulling the first belt body 52, or can be respectively displaced at the other end of the two belt bodies (52, 53). The suspension body 30 is hooked to achieve the same purpose, and no further details are provided herein. Moreover, since the area of the first round wheel 123 is slightly larger than the area of the second round wheel 124, the center of rotation of the first round wheel 123 and the second round wheel 124 respectively and the belt body 50 (as shown in FIG. 12) In the case of forming one of the different lengths of the force applying arm 127 and the resistance arm 128, the lever principle of the other condition can also be demonstrated by changing the number of the suspension bodies 30 at both ends of the belt body 50. The other end of the suspension body 30 may also be provided with a second suspension body hook 32 for the plurality of suspension bodies 30 to be connected in series and suspended. In order to enable one end of the belt body 50 to be fixed to the first round wheel 123 or the second round wheel 124, a fixture 60 may be provided in the teaching device 1 of the embodiment, and the structure of the holder 60 is achieved. As mentioned above, it is not mentioned here. Finally, please refer to FIG. 12 . As shown in the figure, the teaching tool 100 of the embodiment can also cooperate with at least one hanging pulley 40 to demonstrate the principles of various fixed pulleys and moving pulleys, and become another embodiment, and the large structure thereof. It is the same as the previous embodiments, and thus will not be described herein. The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the shape, structure, characteristics and spirit described in the patent application scope M336498 are equally changed. And the modifications should be included in the scope of the patent application of this creation. [Simple description of the drawing] Fig. 1A is a side view of the structure of the pulley block. Fig. 1B is a side view showing the construction of an embodiment of the teaching aid. Fig. 2 is a cross-sectional view showing the structure of a movable pulley. Fig. 3 is a side view showing the configuration of still another embodiment of the creation teaching aid. Fig. 4 is a side view showing the configuration of still another embodiment of the creation teaching aid. Fig. 5 is a cross-sectional view showing the structure of an embodiment of the holder. Fig. 6 is a side view showing the configuration of still another embodiment of the creation teaching aid. Fig. 7 is a side view showing the configuration of still another embodiment of the creation teaching aid. Fig. 8 is a side view showing the structure of still another embodiment of the creation teaching aid. Fig. 9 is a side view showing the configuration of still another embodiment of the creation teaching aid. Fig. 10 is a side view showing the configuration of still another embodiment of the creation teaching aid. Figure 11 is a side view showing the construction of a further embodiment of the creation teaching aid. Fig. 12 is a side view showing the configuration of still another embodiment of the creation teaching aid. [Main component symbol description] 100 Teaching aids 10 Pulley set 11 Fixing rod 111 Groove 112 Magnet 12 Axle 121 121 Axle contour 122 Center axis 123 First round wheel 124 Second round wheel 13 M336498
125 第一圓輪輪廓 126 第二圓輪輪廓 127 施力臂 128 抗力臂 13 活動滑輪 131 活動滑輪輪廓 132 限位體 133 標示體 20 環體 30 懸掛體 31 第一懸掛體掛勾 32 第二懸掛體掛勾 40 掛式滑輪 41 連接桿 42 掛式滑輪轉軸 43 掛式滑輪輪廓 44 第一掛式滑輪掛勾 45 第二掛式滑輪掛勾 50 帶體 51 懸掛孔 52 第一帶體 53 第二帶體 54 第一懸掛孔 55 第二懸掛孔 60 固定器 61 扣合突塊 62 扣合凹槽125 First round contour 126 Second round contour 127 Forced arm 128 Resistive arm 13 Movable pulley 131 Movable pulley contour 132 Limiting body 133 Marking body 20 Ring body 30 Suspension body 31 First suspension body hook 32 Second suspension Body hook 40 Hanging pulley 41 Connecting rod 42 Hanging pulley shaft 43 Hanging pulley contour 44 First hanging pulley hook 45 Second hanging pulley hook 50 Belt 51 Suspension hole 52 First belt body 53 Second Belt body 54 first suspension hole 55 second suspension hole 60 holder 61 fastening protrusion 62 fastening groove
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