M325714 八、新型說明： 【新型所屬之技術領域】 本新型與電子I置之電路翻定結構有關，特別是關於一種 •用來快速將電路板定位於機殼之卡持組件，而能夠使拆裝電路板 手續更加簡便且迅速者。 【先前技術】 電子裝置中通常都具有許多印刷電路板，例如電腦系統中之 I主機板，這類印刷電路板必須藉由固定手段裝設於電子裝置的機 殼内。就目前市面上所普及的電子裝置而言，其印刷電路板大多 數疋利用螺絲鎖固的手段固定於機殼上。 常見的螺絲鎖固方式為，事先在印刷電路板上開設固定孔， =及在機殼上也·對應於_孔之·。螺_先穿 路板之固定孔，雜使用者再使_絲起子將螺絲分職入· 謂應之螺孔。如此，便可_螺絲將印路板__殼上。 的手段在使用者拆裝印刷電路板時，必須利用工I =出螺絲，才能夠對於印刷電路板進行組裝或是若是 h剛好沒有對朗工具，便無法拆料路板， ^ 不便。另-方面，_必__螺概量眾多， \為 電路板的手續冗長繁讀而且耗時費力。 斥衣P刷 為了解決必須格配工具才能夠拆^ 了將螺絲改良為可直接以手指轉動之市面上出現 減少手邊若無1驗無轉神之固' thU^b S=w)，以 所示，為-般應肋指螺㈣將電路板 M325714 圖H〇上具有複數個定位柱11及-螺孔61，其中二 η之中段開設有-凹槽m。電路板2Q開設有複數個對膺^枚 ΐ ^之定位孔21。各定位孔21呈職狀而具有-寬段lu二 -乍段212，而且定位柱11前端係由寬段211穿過定位凡2 .電路板20便可以藉由定位柱η於機殼10上滑動，使如此， 之窄段212嵌入定位柱u之凹槽Π1。之後，只要將掩二=二 _路板2〇並旋入螺孔61，便能夠將電路板20固定^機I 1〇 ，^猎蚊位孔21與機殼1G卡糊定啦，使 : 要_梅娜㈣來進行_，還是有鱗f力 二 外，拇指螺絲的造價與成本也較-般螺絲高出許多。在。此 【新型内容】 先前技術中電子裝置之電路板大多藉由螺 ΓΓ料術概1細㈣峨術工 ，但紋耗時f力且成本較高。杨於此，本新型紅要 殼：：動卡_ ’ ·電路板_方树於機 為解決前狀問題，本創雜供—種卡持組件，心 =板於一機殼上，其”持組件包括有-凸柱及一扣持件二 才固5又於電路板-側，並且面對於機殼。扣持件二 軸桿分別樞穿機殼上二相面對之凸、’、_*才干，各 殼。扣持件可利用轴桿在凸片上相對=夕扣持件樞設於機 了於袪敢位移，以克服組裝電 路m凸柱與扣替之公差。扣持件—ίβ 間裝設有-賴元件，轉性树 6 M325714 ’’ a &件之中段具有_對 以朝電路板轉動而移至-扣^t 卞係用 口，藉以使電使電路板之凸Μ入其卡合 _ 路板無法相對於機殼移動。 -上的凸、柱，=政在Γ、，扣持件係轉動而以其卡合口扣住電路板 •其中持件亦^動釋放凸柱， 加則更且迅’也可以克服_2==裝'路板的手續更 1在’、％方式巾詳細敘述本新型之詳細特徵以及優點，盆 任:熟習相關技藝者了解本新型之技術内容_ 孰羽i 2豕^明書所揭露之内容、申請專利範圍及圖式，任何 心白目P技蟄者可輕易地理解本新型前述之目的及優點。 以—H關於本新㈣容之酬及町之實施方狀說明係用M325714 VIII. New description: [New technical field] This new type is related to the circuit setting structure of the electronic I, especially for a kind of clamping component used to quickly position the circuit board in the casing, and can be dismantled. It is easier and faster to install the board. [Prior Art] There are usually many printed circuit boards in an electronic device, such as a motherboard in a computer system, which must be mounted in a casing of an electronic device by a fixing means. In the case of electronic devices that are currently popular on the market, most of the printed circuit boards are fixed to the casing by means of screw locking. A common screw locking method is to open a fixing hole on the printed circuit board in advance, and also on the case, corresponding to the hole. The screw _ first wears the fixing hole of the road board, and the miscellaneous user then makes the _ wire screwdriver to divide the screw into the screw hole. So, you can _ screw the printed board __ on the shell. When the user disassembles the printed circuit board, it is necessary to use the I = screw to assemble the printed circuit board or if the h just does not have the tool, the board cannot be removed. ^ Inconvenience. On the other hand, _ must __ a lot of snails, \ is a long and complicated procedure for the board and it takes time and effort. Repellent P brush in order to solve the problem must be equipped with tools to be able to remove the screw to improve the screw can be directly turned to the finger on the market to reduce the hand if there is no 1 test without turning the gods 'thU^b S=w), to The display plate M325714 has a plurality of positioning posts 11 and a screw hole 61, wherein the middle portion of the two n is provided with a groove m. The circuit board 2Q is provided with a plurality of positioning holes 21 for the ΐ ^ ΐ ^. Each positioning hole 21 has a shape and has a wide-length lu-twist section 212, and the front end of the positioning post 11 is passed through the wide section 211. The circuit board 20 can be positioned on the casing 10 by the positioning column η. Sliding, so that the narrow section 212 is embedded in the groove Π1 of the positioning post u. After that, as long as the mask 2 = 2 slab 2 is screwed into the screw hole 61, the circuit board 20 can be fixed, and the mosquito bit hole 21 and the casing 1G are stuck, so that: To _Mena (four) to carry out _, or there are scales f force two, the cost and cost of the thumb screw is much higher than the general screw. in. [New content] In the prior art, most of the circuit boards of the electronic device are finely machined by the snail technique, but the time and cost are high. Yang here, the new red shell:: moving card _ ' · circuit board _ square tree in order to solve the problem of the front, the creation of miscellaneous supplies - kind of card holding components, heart = board on a shell, its " The holding assembly includes a - stud and a holding member 2 and is fixed on the circuit board side, and faces the casing. The two axial rods of the holding member are respectively pivoted on the casing to face the two sides, ', _ * ability, each shell. The holding part can be pivoted on the tab relative to the yoke holding member to the machine to overcome the tolerance of the assembly circuit m convex column and the replacement. The holding part - Ίβ inter-device with - ray element, the rotating tree 6 M325714 '' a & middle section has _ pair to move toward the board and move to the - buckle ^t 卞 system port, so that the circuit makes the board convex Μ 其 卡 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The column, the addition is more and faster 'can also overcome the _2== installation of the 'road plate' more than 1 ', % way towel detailed description of the new features and advantages of the new type, basin: familiar with The skilled person understands the technical contents of this new model _ 孰羽i 2豕^明书, the contents of the application, the scope of the patent application and the schema, any of the minds of the P technology can easily understand the aforementioned purposes and advantages of the new model. HAbout this new (four) Rong Zhi and the implementation of the square description of the town
Uf本新型之顧，並且提供本麵之專利 進一步之解釋。固又 Φ 【實施方式】 • 缺麻_的目的、構造、_、及其功能錢—步的瞭 解，從配合實施例詳細說明如下。 Μ，參閱「第2圖」、「第3圖」及「第4圖」所示，為本創作 弟-貫施靖提供之—種卡持組件，其包含有—凸柱以及—扣持 二0Α:此種卡持組件係應用於—電子裝置，例如個人電腦、飼服 :等等’θ其中電子裝置具有一機殼10及-電路板2〇。卡持組件 係用以提供一定位機制，使電路板20不會於機殼10相對滑動， 以將包路板20固定於機殼1〇上，或者是迅速地自機殼上拆卸 M325714 請參閱「第2圖」、「第5圖」及「 具有複數個定位柱n、—印 」打u上 .數置可依貫際狀況增減，然本創作中僅以四 ^ .以L古^直於機双10的表面，而且各定位柱Π之中 奴開故有-凹槽m。各凸片13係分別自機殼 20延伸，並且位於穿# ]衣面向電路板 4。 槽2的_對之雜，而互細對。電路 板20可為前述電子裝置抵 加〜 之主祛板，而且電路板20上開設有複數 個疋位孔21及—OL· ^ 於〜妊 疋位孔21的設置位置及數量係對應 、疋才’而穿孔22的設置位置則對應於穿槽⑴ 設於電路板20之一側面，並且面對於機殼1〇。 孔^各Γ孔21分別具有一寬段211及一窄段212，寬段211的 於定位柱11前端之外徑，使各定位柱η可以穿過各定 位孔21之寬段211。定位孔21 1之乍奴212的孔徑係小於定位柱 Π前端之外徑’但是略大於凹槽m之外徑，使定位孔21之窄段 —2的政緣可以肷入疋位柱}1之凹槽山。因此，電路板2〇可以 抑定錄11在機殼1G上沿―結合額滑動，使定位孔21篏入 疋位柱11之凹槽in ’以藉由定位孔η與機殼⑺卡擎固定。相 反地，電路板2G也可簡蚊位㈣在機㈣上沿-釋放方向 /月$使疋位孔21退出定位柱u之凹槽⑴，以使電路板2〇可 以從機殼10上拆卸下。 請再參閱「第3圖」、「第4圖」及「第7圖」所示，扣持件 30係樞設於機殼1()上，並且對應於機殼⑺之穿槽η設置。扣 M325714 '彈性肋32 .合口 33、一彈性 持件30包含有一控制部幻、 元件34及二軸桿35。 兩軸桿35分別形成於扣持件％ •扣持件向機殼K)之各凸片13延伸。各轴二、心’並且分別由 之凸片13,使扣持件30可在 ^係分別樞穿於對應 ‘凸片13之卩細略大於_ 目#於機殼W胁。兩 的接合處)之距離，使扣持件3。可 小幅位移。雜树34可為料舰於= 目殼做 片吹間，並且套^士Γ 轴桿％所插穿之凸 I且套叹於扣持件3〇前端之轴桿％ 34係用以提供—彈性力，而常態地朝另彈讀 中段之，™穿之凸片1_件1:=: 成於扣持件3〇相對於彈性元件34設置端的另:雷 路板20外側，苴中_制％ 3 而且位於電 於機私ID麻、I 被撥_㈣扣持㈣相對 凸柱Γ2Γ 33形成於扣持件3G种段，並且對應於 =而設置，其t卡合σ33係用嘴路板2G之凸柱22嵌 於物反20進行定位。彈性肋32則形成於卡合口 ％的 射彈㈣32係可被餘22讎而產”曲變形，而用 於凸桂22嵌人卡合口 33時扣持凸柱22。 所_如:弟2圖」、「第5圖」、「第6圖」、「第7圖」及「第8圖」 =，用者欲將電路板20組裝至機殼1〇時，須先將轉板2〇 孔21對準機殼1〇之定位柱u，接著使各定位柱1】經由各 疋立孔21的寬段211穿過電路板1〇，如此，電路板卯便能藉由 M325714 =柱心機殼K)均動。龄，將 使各=孔21的窄段212邊緣嵌人各定位柱ι二= 111，如此，電路板2G便無法朝上脫離機殼Κ)。 θ 接純動扣持件3()之輪31，使娜3Q朝 =而移至—扣持位置（、圖」）。在扣持件30轉動的過程二 ^板20 _ 22係__ 32而截入卡合口 ％ ，件3〇前酬壓縮科34，使扣持件3Q產 =，亚使凸柱22能夠順利地嵌人卡合^中。如 _組装至機殼10之手續，使電路板2。 = ^及扣持件30,而無法麵於機殼iq移動。相反地，當使用者 =電路板20從機殼1G上拆卸下時，只要反向撥動扣持㈣之 1㈣’錢路板2G之餘22退出扣持件3〇之卡合口 ％， :、、邊同％输_放方向推動電路板20，即可將定錄u由定 位孔21 ^窄段212退出，使電路板20可以由機殼10上拆卸下。 供之9圖」至「第13圖」所示，為本創作第二實施例所提 :之桃组件’其包含有—凸柱22及_扣持件％。本實 弟—貫施綱主要差域在於如下：f職2〇之定純21為單 純之圓孔；機殼1G之定位柱n不具有凹槽⑴；凸柱U前端且 有-環狀凸緣221，·及卡合口 33 —側具有—止則％，1中止撞 片36係延伸於卡合口 33之邊緣，而且止播片36上具有缺口^ 此之外，本實闕的具體實财敍致與第-實施例相同。 —使用者欲將電触20組裝至触1〇時，須先將電路板2〇之 疋位孔21解機殼1〇之定位柱n,紐使各定雜“經由各定 10 M325714 件㈣=移動。接著’撥動扣持件30之控制部31，使扣持 件3。::轉動而移至—扣持位置(「第13圖」)。在扣持 I止料2過財，電路板2G之凸柱22餘擠止制36以喪 ,i "之缺口，並使環狀凸緣⑵嵌入卡合口 33中。同時， ==㈣壓轉_ 34，使繼％產生微小的位 夕 柱22之被狀凸緣221能夠順利地崴入卡合口 33中。Uf is a new type of patent and provides further explanation of this patent. Solid and Φ [Embodiment] • The purpose, structure, _, and function of the lack of hemp _ are explained in the following steps. For details, please refer to the "Picture 2", "Picture 3" and "Picture 4", which are provided for the creative brother-------------------------------------------------------------------- 0Α: This type of holding component is applied to an electronic device such as a personal computer, a feeding machine, etc. 'The electronic device has a casing 10 and a circuit board 2'. The holding component is used to provide a positioning mechanism so that the circuit board 20 does not slide relative to the casing 10 to fix the road surface board 20 to the casing 1 or to quickly remove the M325714 from the casing. "2nd picture", "5th picture" and "with a plurality of positioning columns n, -印" hit u. The number can be increased or decreased according to the situation, but in this creation only four ^. L Gu ^ Straight to the surface of the double 10 of the machine, and the slaves in each positioning column have a groove m. Each of the tabs 13 extends from the casing 20 and is located facing the circuit board 4. The _ of the slot 2 is miscellaneous, and the pair is fine. The circuit board 20 can be used as the main board of the electronic device, and the circuit board 20 is provided with a plurality of clamping holes 21 and -OL·^ corresponding to the position and number of the pregnancy position holes 21, The position of the perforation 22 corresponds to that the slot (1) is provided on one side of the circuit board 20 and faces the casing 1 . Each of the holes 21 has a wide section 211 and a narrow section 212, and the wide section 211 has an outer diameter of the front end of the positioning post 11, so that each positioning post η can pass through the wide section 211 of each positioning hole 21. The aperture of the positioning hole 21 1 is smaller than the outer diameter of the front end of the positioning post, but is slightly larger than the outer diameter of the groove m, so that the narrow section of the positioning hole 21 can be broken into the clamping column}1 The grooved mountain. Therefore, the circuit board 2 can prevent the recording 11 from sliding along the "binding amount" on the casing 1G, so that the positioning hole 21 is inserted into the groove in the clamping column 11 to be fixed by the positioning hole η and the casing (7) . Conversely, the circuit board 2G can also be used to remove the recessed hole (1) of the positioning post u on the machine (4) along the release direction/month of the machine (4) so that the circuit board 2 can be detached from the casing 10. under. Please refer to "Fig. 3", "Fig. 4" and "Fig. 7". The holding member 30 is pivotally mounted on the casing 1 () and is disposed corresponding to the slot η of the casing (7). Buckle M325714 'elastic rib 32. The joint 33, a resilient holder 30 includes a control portion, element 34 and two shafts 35. The two shafts 35 are respectively formed on the fasteners %. The fasteners extend toward the respective tabs 13 of the casing K). Each of the shafts 2, the cores and the tabs 13 are respectively formed so that the latching members 30 can be pivoted respectively to the corresponding ‘the tabs 13 and the ridges are slightly larger than the cymbals. The distance between the joints of the two makes the holding member 3. Can be slightly displaced. The miscellaneous tree 34 can be used for the material ship to make a sheet blowing between the shell and the sleeve, and the sleeve is inserted into the protrusion I and the sleeve is sighed by the shaft of the front end of the holding member. Force, and normally read the middle section, TM wears the tab 1_piece 1:=: in the opposite part of the holding member 3〇 with respect to the elastic element 34, the outer side of the thunderbolt board 20, % 3 is located in the machine private ID hemp, I is dialed _ (four) buckled (four) relative to the column Γ 2 Γ 33 formed in the 3G section of the holding piece, and is set corresponding to =, the t-lock σ33 system nozzle plate The 2G stud 22 is embedded in the object counter 20 for positioning. The elastic ribs 32 are formed in the projecting port % of the projectile (four) 32 series can be produced by the remaining 22 ” "bend deformation", and when the convex guinea 22 is engaged with the engaging opening 33, the studs 22 are buckled. "Fig. 5", "6th", "7th" and "8th" =, when the user wants to assemble the circuit board 20 to the casing 1 first, the rotating plate 2 must be first boring 21 is aligned with the positioning post u of the casing 1 , and then the positioning posts 1 are passed through the wide section 211 of each of the vertical holes 21 through the circuit board 1 , so that the circuit board can pass the M325714 = column machine Shell K) is moving. Age, the edge of the narrow section 212 of each hole 21 will be embedded in each positioning column ι=111, so that the circuit board 2G cannot be detached from the casing Κ). θ is connected to the wheel 31 of the pure action holding member 3 (), so that Na 3Q is moved to the - holding position (, figure). In the process of the rotation of the holding member 30, the two plates 20 _ 22 are __ 32 and are cut into the engaging opening %, and the piece 3 is folded in front, so that the holding member 3Q is produced, and the sub-boom 22 can be smoothly Inlay the card in ^. For example, the procedure of assembling to the casing 10 makes the circuit board 2. = ^ and the holding member 30, but can not move to the housing iq. Conversely, when the user=the circuit board 20 is detached from the casing 1G, as long as the back (1) of the (4) 1 (4) of the money board 2G is out of the latching port 3, the engagement port %, :, When the board 20 is pushed in the same direction, the recording u can be withdrawn from the positioning hole 21 and the narrow section 212, so that the circuit board 20 can be removed from the casing 10. For the second embodiment of the present invention, the peach component is provided with a stud 22 and a retaining member %. The main difference between the actual brother and the syllabus is as follows: the fixed pure 21 of the 2nd position is a simple circular hole; the positioning post n of the casing 1G does not have the groove (1); the front end of the convex column U has a ring-shaped convex The edge 221, and the engaging opening 33 have a side stop-%, and the first stop piece 36 extends over the edge of the engaging opening 33, and the stop piece 36 has a notch thereon. The description is the same as the first embodiment. - When the user wants to assemble the electric contact 20 to the touch 1〇, the clamping hole 21 of the circuit board 2 must be disassembled into the positioning column n of the casing 1,, and the respective miscellaneous pieces “via 10 M325714 pieces (4) = Move. Then, the control unit 31 of the latching member 30 is moved to move the latching member 3:: to the holding position ("Fig. 13"). In the case of holding the material I to the end of the material 2, the studs 22 of the circuit board 2G are squeezed to form a notch, and the annular flange (2) is embedded in the engaging opening 33. At the same time, == (four) compression _ 34, so that the minute flange 221 of the column 22 can be smoothly inserted into the engagement opening 33.
如此，便完成將電路板為裝至驗1Q ’备使时欲將電路板2G從機殼1Q上拆卸下時，只要 動扣持件30之控制部31，使電路板20之凸柱 D Χ ii屮in妙Α ΟΛ , 之凸柱22的裱狀凸緣221 、寸之卡合口 33 ’就能夠朝上將定位柱Π由定位孔21 退出，使電路板20可以由機殼1〇上拆卸下。 電路ΓΓΓ細，㈣㈣__其卡合⑽扣住 3=1 22，使電路板2G無法脫離機㈣，而扣持件 3〇亦可轉動釋放凸柱22，其_扣持件 夺符件 不但能夠使拆裝電路板20的手續更加:於立移， 裝時的零件公差。 〗使且迅速’也可以克服組 雖然本新型以前述之實施例揭露如上， 新型。在不脱離本新型之精神和範園内^亚非用以限定本 屬本新型之專利保護範圍。關於本新 ，’均 所附之申請專利範圍。 f疋之保瘦範圍請參考 【圖式簡單說明】 11 M325714 第i圖為習知技術中拇指螺絲、電路板與機殼之立體分解圖。 第2圖為本創作第一實施例中電路板與機殼之立體分解圖。 第3圖為本創作第一實施例中扣持件與機殼之立體分解圖。 第4圖為本創作第一實施例中扣持件與機殼之立體示意圖。 第5圖為本創作第一實施例中機殼之定位柱位於定位孔之寬 段的上視圖。 第6圖為本創作第一實施例中機殼之定位柱位於定位孔之窄 • 段的上視圖。 第7圖為本創作第一實施例中扣持件尚未扣持凸柱之立體示 意圖。 第8圖為本創作第一實施例中扣持件於扣持位置扣持凸柱之 立體示意圖。 第9圖為本創作第二實施例中電路板與機殼之立體分解圖。 第10圖為本創作第二實施例中電路板與凸柱之立體示意圖。 g 第11圖為本創作第二實施例中扣持件與機殼之立體示意圖。 - 第12圖為本創作第二實施例中扣持件尚未扣持凸柱之立體 * 示意圖。 第13圖為本創作第二實施例中扣持件於扣持位置勾住凸柱 之立體不意圖。 【主要元件符號說明】 10 .............................機殼 11 .............................定位柱 111...........................凹槽 12In this way, when the circuit board is mounted to the inspection 1Q', when the circuit board 2G is to be detached from the casing 1Q, the control portion 31 of the movable holding member 30 is used to make the boss D of the circuit board 20 The 裱 屮 Α 之 之 之 之 之 之 之 之 之 之 之 之 之 之 凸 裱 凸 裱 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸 凸under. The circuit is thin, (4) (4) __ its snap (10) buckles 3=1 22, so that the circuit board 2G can not be separated from the machine (4), and the holding member 3〇 can also rotate to release the boss 22, and the _ buckle retaining member can not only The procedure for disassembling the circuit board 20 is further improved: the tolerance of the parts during the vertical movement and loading. 〖It can be made quickly and quickly'. Although the present invention is disclosed in the foregoing embodiments, it is novel. It is intended to limit the scope of patent protection of the present invention without departing from the spirit and scope of the present invention. Regarding this new, the scope of the patent application attached to it. Please refer to [Simple Description] 11 M325714 Figure i is an exploded view of the thumb screw, circuit board and casing in the prior art. 2 is an exploded perspective view of the circuit board and the casing in the first embodiment of the present invention. Figure 3 is an exploded perspective view of the fastener and the casing in the first embodiment of the present invention. Fig. 4 is a perspective view showing the fastener and the casing in the first embodiment of the present invention. Fig. 5 is a top view of the positioning post of the casing in the first embodiment of the present invention in a wide section of the positioning hole. Fig. 6 is a top view of the narrowing section of the positioning hole of the positioning cylinder of the casing in the first embodiment of the present invention. Fig. 7 is a perspective view showing the first embodiment of the present invention in which the retaining member has not yet buckled the stud. Fig. 8 is a perspective view showing the first embodiment of the present invention in which the fastening member holds the protruding post at the holding position. Figure 9 is an exploded perspective view of the circuit board and the casing in the second embodiment of the present invention. Figure 10 is a perspective view of the circuit board and the stud in the second embodiment of the present invention. g Figure 11 is a perspective view of the holding member and the casing in the second embodiment of the present invention. - Figure 12 is a perspective view of the third embodiment of the present invention in which the retaining member has not yet been held by the stud. Fig. 13 is a perspective view showing the third embodiment of the present invention in which the holding member hooks the stud at the holding position. [Main component symbol description] 10 .............................Chassis 11 ........... ..................Positioning column 111...........................groove 12
M325714 12 .............................穿槽 13 .............................凸片 20 .............................電路板 21 ................. 定位孔 211 ...........................寬段 212 ...........................窄段 22 .............................凸柱 221...........................環狀凸緣 30 .............................扣持件 31 .............................控制部 32 .............................彈性肋 33 .............................卡合口 34 .............................彈性元件 35 .............................軸桿 36 .....................·······.止擋片 60 .............................拇指螺絲 61 .............................螺孔 13M325714 12 .............................through slot 13 ................ .............TIP 20 .............................Board 21 .. ............... Positioning hole 211 ........................... Wide section 212 .. .........................Narrow section 22 ...................... .......protrusion 221...........................ring flange 30 ........ .....................Retaining parts 31 ......................... ....Control 32 .............................elastic ribs 33 ........... ..................Snap port 34 ............................ Elastic element 35 .............................shaft 36 ............... ......·······.stop piece 60 ............................. thumb screw 61 ............................. screw hole 13