M345108 八、新型說明： 【新型所屬之技術領域】 本創作係提供一種門用輔助鎖，尤指一種適於裝設在 木門上的輔助鎖，該輔助鎖可提供防塵的效果。 【先前技術】 門上通常會加裝輔助鎖用以加強鎖固。然而，賊仍會 利用例如起子、鉗子或榔頭等工具對輔助鎖之外露在門 外侧之鎖頭強力轉動或是敲擊而破壞該輔助鎖；另外， 在木門挖設穿孔及/或將該輔助鎖裝入該穿孔時，通常都 會有木屑產生，這些木屑在門之關開使用下，將會掉入 該輔助鎖之鎖拴驅動機構的牽縮器内，造成牽縮器的作 動不順暢而導致故障。 第4,338,804號美國專利案中揭示一種鎖閂操作裝 置，該鎖問操作裝置包含一遮蔽件（shield)，該遮蔽 件可抵接在一門之外表面及罩在該裝置之一鎖閂驅動機 構之外侧用以阻止賊從門的外部以工具穿入而操控該鎖 閂驅動機構。該遮蔽件雖然亦具有防止木屑掉入鎖拴驅 動機構内的功用，然而，該遮蔽件之抵接在門上的肩部 (shoulder)需要藉由彎折製程形成，製造自由度受限， 此外，該遮蔽件與該辅助鎖之鎖本體係屬分離的組件， 其需要個別且對準地先組裝在門的穿孔内後，才能進一 步組裝鎖本體，在組裝上並不便利。 M345108 【新型内容】 緣此，本創作之主要目的在提供一種門用輔助鎖，該 輔助鎖具有可保護鎖拴驅動機構免受木屑侵入之效果， 同時具有簡化之結構及便利之組裝者。 依據本創作一較佳實施例構成之輔助鎖係包含可安 裝在一門板之外侧面的一鎖殼、套裝在該鎖殼内部的一 鎖筒、可安裝在該門板之一穿孔内的一防塵環及一鎖閂 驅動機構：該鎖殼包含一縱向孔及一環狀突出部，該突 出部具有界定該縱向孔之一部份的内周壁及一外周壁， 該外周壁上具有至少一第一結合部；該鎖筒收納在該鎖 殼内且包含一扭矩葉片；該防塵環具有一中心孔及界定 該中心孔的環壁，該環壁包含一内表面、一第一端、一 第二端及一缺口，該第一端的内表面上具有至少一第二 結合部，該第二結合部係與該第一結合部相互結合，使 該防塵環第一端定位在該鎖殼上，又該缺口係由該環壁 第二端向第一端延伸一距離；該鎖閂驅動機構包含一牽 縮器，該牽縮器穿過該防塵環的缺口，且該牽縮器係可 受操作地與該扭矩葉片連接。 在一實施例中，該第一結合部係包含設在該外周壁上 且呈徑向相對的二凹槽，且該第二結合部係包含設在該 防塵環之第一端之内表面上且呈徑向相對的二凸粒，該 二凸粒係對應地扣入該二凹槽内結合。 M345108 在另一實施例中，該第一結合部包含設在該外周壁上 的一環狀凹槽，且該第二結合部係包含設在該防塵環之 第一端之内表面上且呈徑向相對的二凸粒，該二凸粒係 對應地扣入該環狀凹槽内結合。 最好，該鎖殼之界定該縱向孔之孔壁係形成有内凹的 一第一肩部與一第二肩部；該鏡筒包含一内端，該内端 係密切地套裝在該突出部之内周壁中，且該鎖筒的外周 壁形成一第一凸緣及一第二凸緣，該第一凸緣與第二凸 緣係個別抵接於該第一肩部與該第二肩部上。 該牵縮器具有一與該門板穿孔延伸方向平行之寬 度，且該防塵環缺口之延伸距離最好大於該牵縮器寬度。 該防塵環的環壁進一步包含一外表面，該外表面最好 具有可與該門板之該穿孔内壁形成套合接觸的尺寸。 最好，該防塵環的環壁上進一步包含一第二缺口，該 第二缺口係由第二端向第一端延伸一距離且與該缺口呈 徑向相對，且該二缺口將該防塵環分隔成二弧形部。 關於本創作之其他目的、優點及特徵，將可由以下較 佳實施例的詳細說明並參照所附圖式來了解。 【實施方式】 本創作可有多種不同的結構實施例。現將僅為例子但 非用以限制的二具體實施例，並參照所附圖式就本創作 之較佳結構内容說明如下： 8 M345108 請參閱第一圖至第四圖，顯示依據本創作第一實施例 構成之輔助鎖，其包含可安裝在一門板9之外侧面93的 一鎖殼2、套裝在該鎖殼2内部的一鎖筒1、可相對轉動 地罩覆在該鎖殼2外部的一裝飾蓋3及可安裝在該門板9 之一穿孔90内的一防塵環4。 該鎖殼2包含可供該鎖筒1收納的一縱向孔20，在 本實施例中，界定該縱向孔20之孔壁並形成有内凹的一 第一肩部201與一第二肩部202;該鎖殼2進一步包含一 内端面22及一延伸自該内端面22的環狀突出部21，當 該辅助鎖組裝於門板9上後，該内端面22會抵接於該門 板9之外侧面93,而該環狀突出部21具有界定該縱向孔 20之一部份的内周壁211及一外周壁212,該外周壁212 上具有至少一第一結合部26 ;在本實施例中，該第一結 合部26係一凹槽，且該外周壁212上具有徑向相對的二 第一結合部26。 該鎖筒1的内部具有一鎖心10，該鎖心10之内端延 伸一扭矩葉片11;該鎖筒1包含一内端12,該内端12 係密切地套裝在該突出部21之内周壁211中，又該鎖筒 1的外周壁形成一第一凸緣131及一第二凸緣132,當該 鎖筒1套裝於該鎖殼2之縱向孔20内時，該第一凸緣131 與第二凸緣132係個別抵接於該第一肩部201與該第二 肩部202上；又該内端12之端面121上以螺絲25鎖上 M345108 一定位板14用以將該扭矩葉片11定位，且在該端面121 並設有二螺孔15。 在本實施例中，該輔助鎖進一步包含一第一結合板 5、一第二結合板6及安裝在一門板9内的一鎖拾驅動機 構91。第一結合板5係與第二結合板6牢固結合於該門 板9之内侧面94而且一起與該鎖筒1牢固結合，在本實 施例中，該第一結合板5與第二結合板6上係個別設有 對準的二孔52、62，並有二螺絲7延伸穿過該孔52、62 並鎖入該鎖筒1的螺孔15内。該第二結合板6上具有一 手柄61，該手柄61的内端與扭矩葉片11連接，當操作 該手柄61轉動或是以鑰匙8插入鎖心10内轉動時，該 扭矩葉片11會受帶動偏轉。 該鎖閂驅動機構91包含一安裝在門板9侧邊之一槽 孔92内的牽縮器911，該牽縮器911具有可供扭矩葉片 11穿過的孔913 ;該鎖閂驅動機構91進一步包含一栓扣 912，該栓扣912係可受操作地與該牽縮器911連接，而 可在該門板9内的一縮入位置與延伸出該門板9並插入 一門框（未圖示）之開口内的一延伸位置之間移動。該 牽縮器911係可受操作地與該扭矩葉片11連接，使得扭 矩葉片11受鑰匙8操作或是手柄61操作帶動時，該牵 縮器911會受連動並促使拴扣912位移；又該牽縮器911 具有一與該門板9穿孔90延伸方向平行之寬度（dl)。 M345108 該防塵環4係可縱向延伸地穿入該門板9之穿孔90 中，其具有一中心孔40及界定該中心孔40的環壁41， 該環壁41包含一内表面413、一外表面414、一第一端 415及一第二端416 ;該第一端415的内表面413尺寸係 可提供該套殼2之突出部21之外周壁212密切地套裝， 並於該第一端415的内表面413上具有至少一第二結合 部42,該第二結合部42係可與該外周壁212上的第一結 合部26相互結合，在本實施例中，該第二結合部42係 一凸粒，且該内表面413上具有徑向相對的二第二結合 部42，當該防塵環4之第一端415與該套殼2之突出部 21相套合時，該二第二結合部42係可對應地扣入該二第 一結合部26内結合，使該防塵環第一端415定位在該鎖 殼2之突出部21上，如第二圖所示。 該防塵環4的外表面414係具有可與該門板9之穿孔 90内壁大致上形成套合接觸的尺寸，使得該防塵環4結 合在該套殼2之突出部21上後，該防塵環4與該套殼2 之突出部21係可一起裝入該門板9之穿孔90中。 該防塵環4進一步包含至少一可提供該鎖閂驅動機 構91之牽縮器911穿過的缺口 412，在本實施例中，係 設有徑向相對的二缺口 412,各缺口 412係由第二端416 向第一端415延伸一距離d2而將該防塵環4分隔成二弧 形部411，該距離d2最好大於該牽縮器911之寬度dl， M345108 使得該輔助鎖之牵縮器911穿過該防塵環4之缺口 412 而組裝在門板9上後，該防塵環4之弧形部411能包圍 在該鎖閂驅動機構91的牽縮器911外面；又該相對二缺 口 412允許該輔助鎖組裝在不同門向的門板9上時都可 方便地提供該牽縮器911穿過組裝。 如第一圖及第三圖所示，讓輔助鎖組裝於門板9上 後，該鎖殼2的突出部21是夾在該防塵環4之内表面413 與該鎖筒1之内端12外周壁之間，且該鎖筒1與該第一 結合板5及第二結合板6鎖固，所以，該第一與第二凸 緣13卜132可用來將該鎖殼1固定於門板9上。此外， 該防塵環4之環壁弧形部411包圍在鎖閂驅動機構91的 牵縮器911外面，使得從穿孔90與槽孔92周緣掉落的 木屑會受阻擋，不致侵入牽縮器911内影響作動的順暢 性；更重要者，該防塵環4具有結構簡化、製造簡便及 有利該辅助鎖組裝於門板9上等優點，即，該防塵環4 係一圓筒狀的環壁41，在製造上簡單，而在組裝上，該 防塵環4可利用第一端415之第二結合部42與該鎖殼2 之突出部21之第一結合部26先結合定位後再一起裝入 該門板9之穿孔90内，不需要與鎖殼2個別及相互對準 地安裝，能縮短安裝時間，再者，該防塵環4與該鎖殼2 之結合在一起，亦能有效防止賊從門板9的外部以工具 穿入而操控該鎖閂驅動機構91。 12 M345108 參閱第五圖及第六圖，顯示依據本創作第二實施例構 成之輔助鎖（該實施例中，關於和第一實施例說明者相 同或同等之構件，將附上同一標號並省略細部結構說 明）；該實施例的輔助鎖與第一實施例之差異在於：該 該第一結合部26係一環狀凹槽，使得該防塵環4之第一 端415之第二結合部42與該鎖殼2之突出部21之第一 結合部26結合定位後，該防塵環4係可相對該鎖殼2轉 動以調整該防塵環4之缺口 412相對該鎖殼2的位置， 便於該防塵環4與該鎖閂驅動機構91之間的組裝。 前述是對本創作之構造作較佳實施例的說明，而依本 創作的設計精神是可作多種變化實施例；例如，構成該 第一結合部26之凹槽與構成第二結合部42之凸粒係可 互換。是以，對於熟悉此項技藝人士可作之明顯替換與 修改，仍將併入於本創作所主張的專利範圍之内。 13 M345108 【圖式簡單說明】 第一圖是本創作第一實施例之輔助鎖的組合立體圖，並 顯示該輔助鎖組裝於一門板上； 第二圖是沿第一圖之2 - 2線所取的局部剖視圖； 第三圖是沿第一圖之3-3線所取的局部剖視圖； 弟四圖是第一圖之辅助鎖的局部元件分解圖； • 第五圖是與第二圖類似的剖視圖，並顯示本創作第二實 _ 施例之辅助鎖；及 第六圖是第五圖之輔助鎖的局部元件分解圖。 【主要元件符號說明】 1.鎖筒 10 ·鎖心 11·扭矩葉片 12.内端 121.端面 131· 132·凸緣 14·定位板 15.螺孔 2.鎖殼 2 (K縱向孔 201· 202·肩部 21·突出部 211·内周壁 212.外周壁 22.内端面 25.螺絲 26·第一結合部 3.裝飾蓋 4.防塵環 40.中心孔 41.環壁 411·弧形部 412·缺口 413·内表面 M345108 414.外表面 415.第一端 416.第二端 42.第二結合部 5.第一結合板 52· 62·孔 6.第二結合板 61.手柄 7.螺絲 8.錄匙 9.門板 90.穿孔 91.鎖閃驅動機構 911.牽縮器 912.栓扣 913.孔 92.槽孔 93.外侧面 94.内侧面 15M345108 VIII. New description: [New technical field] This creation provides a door auxiliary lock, especially an auxiliary lock suitable for being installed on a wooden door. The auxiliary lock can provide dustproof effect. [Prior Art] An auxiliary lock is usually added to the door to enhance the locking. However, the thief will still use a tool such as a screwdriver, a pliers or a hoe to break the auxiliary lock by strongly rotating or knocking the lock on the outside of the auxiliary lock; in addition, boring and/or assisting the wooden door When the lock is inserted into the perforation, wood chips are usually generated. When the door is closed, the wood chips will fall into the retractor of the lock mechanism of the auxiliary lock, causing the retractor to operate unsmoothly. Causes a malfunction. No. 4,338,804 discloses a latch operating device that includes a shield that abuts against an outer surface of a door and covers a latch drive mechanism of the device. The outer side is used to prevent the thief from manipulating the latch drive mechanism from the outside of the door with a tool penetration. Although the shielding member also has the function of preventing the wood chips from falling into the lock driving mechanism, the shoulder of the shielding member abutting on the door needs to be formed by the bending process, and the manufacturing freedom is limited. The shutter and the lock lock system of the auxiliary lock are separate components, which need to be assembled separately in the perforation of the door separately and in alignment, so that the lock body can be further assembled, which is not convenient in assembly. M345108 [New content] Therefore, the main purpose of this creation is to provide a door auxiliary lock having an effect of protecting the lock driving mechanism from the intrusion of wood chips, and having a simplified structure and a convenient assembler. An auxiliary lock constructed according to a preferred embodiment of the present invention includes a lock case mountable on an outer side of a door panel, a lock cylinder fitted inside the lock case, and a dustproof member mountable in one of the perforations of the door panel a ring and a latch drive mechanism: the lock case includes a longitudinal hole and an annular protrusion, the protrusion has an inner peripheral wall and a peripheral wall defining a portion of the longitudinal hole, the outer peripheral wall having at least one a locking portion is received in the lock case and includes a torque blade; the dust ring has a central hole and a ring wall defining the central hole, the ring wall includes an inner surface, a first end, and a first a second end and a notch, the inner surface of the first end has at least one second joint portion, and the second joint portion and the first joint portion are coupled to each other, so that the first end of the dustproof ring is positioned on the lock shell And the gap extends from the second end of the ring wall to the first end by a distance; the latch drive mechanism includes a retractor, the retractor passes through the gap of the dust ring, and the retractor is It is operatively connected to the torque blade. In one embodiment, the first joint portion includes two diametrically opposed grooves disposed on the outer peripheral wall, and the second joint portion is disposed on an inner surface of the first end of the dustproof ring. And diametrically opposed two lobes, the two bulges are correspondingly buckled into the two grooves for bonding. In another embodiment, the first joint portion includes an annular groove disposed on the outer peripheral wall, and the second joint portion is disposed on an inner surface of the first end of the dustproof ring and is Radially opposed two-gravity, the two convex systems are correspondingly buckled into the annular groove for bonding. Preferably, the wall of the locking case defining the longitudinal hole is formed with a concave first shoulder and a second shoulder; the lens barrel includes an inner end, the inner end is closely fitted to the protrusion The inner peripheral wall of the portion, and the outer peripheral wall of the lock cylinder defines a first flange and a second flange, the first flange and the second flange are individually abutted against the first shoulder and the second On the shoulders. The retractor has a width parallel to the direction in which the perforation of the door panel extends, and the gap of the dust ring is preferably greater than the width of the retractor. The ring wall of the dust ring further includes an outer surface, the outer surface preferably having a size that is engageable with the inner wall of the perforation of the door panel. Preferably, the ring wall of the dust ring further includes a second notch extending from the second end to the first end by a distance and diametrically opposite the notch, and the two notches are the dust ring Divided into two curved parts. Other objects, advantages and features of the present invention will become apparent from the following detailed description of the preferred embodiments. [Embodiment] There are many different structural embodiments of the present creation. The preferred embodiment of the present invention will now be described as an example only, but not by way of limitation, and the following description of the preferred structure of the present invention is as follows: 8 M345108 Please refer to the first to fourth figures, showing the basis of this creation An auxiliary lock comprising an embodiment, comprising a lock case 2 mountable on an outer side surface 93 of a door panel 2, a lock cylinder 1 fitted inside the lock case 2, and a cover rotatably covered on the lock case 2 An outer decorative cover 3 and a dustproof ring 4 mountable in one of the perforations 90 of the door panel 9. The lock case 2 includes a longitudinal hole 20 for receiving the lock cylinder 1. In the embodiment, a hole wall defining the longitudinal hole 20 is formed and a first shoulder 201 and a second shoulder are formed. The lock case 2 further includes an inner end surface 22 and an annular protrusion 21 extending from the inner end surface 22. When the auxiliary lock is assembled on the door panel 9, the inner end surface 22 abuts against the door panel 9. The outer side surface 93 has an inner peripheral wall 211 and a peripheral wall 212 defining a portion of the longitudinal hole 20, and the outer peripheral wall 212 has at least one first joint portion 26; in this embodiment The first joint portion 26 is a groove, and the outer peripheral wall 212 has two first joint portions 26 that are diametrically opposed. The inside of the lock cylinder 1 has a lock core 10, and the inner end of the lock core 10 extends a torque blade 11; the lock cylinder 1 includes an inner end 12, and the inner end 12 is tightly fitted within the protrusion 21 In the peripheral wall 211, the outer peripheral wall of the lock cylinder 1 defines a first flange 131 and a second flange 132. When the lock cylinder 1 is fitted in the longitudinal hole 20 of the lock housing 2, the first flange 131 and the second flange 132 are respectively abutted on the first shoulder 201 and the second shoulder 202; and the end surface 121 of the inner end 12 is locked with a screw 25 to the M345108 a positioning plate 14 for The torque blade 11 is positioned, and a second screw hole 15 is provided in the end surface 121. In the embodiment, the auxiliary lock further comprises a first binding plate 5, a second bonding plate 6, and a locking drive mechanism 91 mounted in a door panel 9. The first bonding board 5 and the second bonding board 6 are firmly coupled to the inner side surface 94 of the door panel 9 and are firmly coupled with the locking cylinder 1 . In the embodiment, the first bonding board 5 and the second bonding board 6 are The upper series are individually provided with aligned two holes 52, 62, and two screws 7 extend through the holes 52, 62 and lock into the screw holes 15 of the lock cylinder 1. The second binding plate 6 has a handle 61. The inner end of the handle 61 is connected to the torque blade 11. When the handle 61 is rotated or the key 8 is inserted into the lock core 10, the torque blade 11 is driven. deflection. The latch drive mechanism 91 includes a retractor 911 mounted in a slot 92 in the side of the door panel 9, the retractor 911 having a hole 913 through which the torque blade 11 can pass; the latch drive mechanism 91 further A latch 912 is included, and the latch 912 is operatively coupled to the retractor 911, and a door frame (not shown) can be inserted into the retracted position of the door panel 9 and extended out of the door panel 9. Moving between an extended position within the opening. The retractor 911 is operatively coupled to the torque blade 11 such that when the torque blade 11 is operated by the key 8 or the handle 61 is operated, the retractor 911 is interlocked and urges the buckle 912 to be displaced; The retractor 911 has a width (dl) parallel to the direction in which the perforations 90 of the door panel 9 extend. M345108 The dust ring 4 is longitudinally inserted into the through hole 90 of the door panel 9, and has a central hole 40 and a ring wall 41 defining the central hole 40. The ring wall 41 includes an inner surface 413 and an outer surface. 414, a first end 415 and a second end 416; the inner surface 413 of the first end 415 is sized to provide a protrusion 21 of the sleeve 2, and the peripheral wall 212 is closely fitted, and at the first end 415 The inner surface 413 has at least one second joint portion 42. The second joint portion 42 can be coupled with the first joint portion 26 on the outer peripheral wall 212. In the embodiment, the second joint portion 42 is a convex portion, and the inner surface 413 has two diametrically opposite second joint portions 42. When the first end 415 of the dustproof ring 4 is engaged with the protruding portion 21 of the sleeve 2, the second and second portions The joint portion 42 can be correspondingly buckled into the two first joint portions 26 to position the dust seal first end 415 on the protruding portion 21 of the lock casing 2, as shown in the second figure. The outer surface 414 of the dustproof ring 4 has a size that can be substantially in a snug contact with the inner wall of the perforation 90 of the door panel 9, such that the dustproof ring 4 is coupled to the protruding portion 21 of the casing 2, the dustproof ring 4 The projections 21 of the casing 2 can be fitted into the perforations 90 of the door panel 9. The dust ring 4 further includes at least one notch 412 through which the retractor 911 of the latch driving mechanism 91 is provided. In this embodiment, the diametrically opposed two notches 412 are provided, and each notch 412 is The second end 416 extends a distance d2 from the first end 415 to divide the dust ring 4 into two curved portions 411. The distance d2 is preferably greater than the width dl of the retractor 911. The M345108 makes the auxiliary lock retractor After the 911 is assembled through the notch 412 of the dust ring 4 and assembled on the door panel 9, the arcuate portion 411 of the dust ring 4 can surround the retractor 911 of the latch driving mechanism 91; and the opposite two notches 412 allow The retractor 911 can be conveniently assembled through assembly when the auxiliary lock is assembled on different door panels 9. As shown in the first and third figures, after the auxiliary lock is assembled on the door panel 9, the protruding portion 21 of the lock case 2 is sandwiched between the inner surface 413 of the dustproof ring 4 and the outer periphery of the inner end 12 of the lock cylinder 1. Between the walls, the lock cylinder 1 is locked with the first joint plate 5 and the second joint plate 6, so that the first and second flanges 13 can be used to fix the lock shell 1 to the door panel 9. . In addition, the ring-shaped arc portion 411 of the dust-proof ring 4 is enclosed outside the retractor 911 of the latch driving mechanism 91, so that the sawdust falling from the perforation 90 and the periphery of the slot hole 92 is blocked, and does not invade the retractor 911. In addition, the dustproof ring 4 has the advantages of simplified structure, simple manufacture, and advantageous assembly of the auxiliary lock on the door panel 9, that is, the dustproof ring 4 is a cylindrical ring wall 41, It is simple to manufacture, and in the assembly, the dustproof ring 4 can be firstly combined with the first joint portion 26 of the protruding portion 21 of the lock casing 2 by the second joint portion 42 of the first end 415 and then put into the door panel. The perforation 90 of the 9 does not need to be installed separately and in alignment with the lock case 2, and the installation time can be shortened. Moreover, the combination of the dust ring 4 and the lock case 2 can also effectively prevent the thief from coming from the door panel 9 The outer portion is manipulated by the tool to manipulate the latch drive mechanism 91. 12 M345108 Referring to the fifth and sixth figures, the auxiliary lock constructed in accordance with the second embodiment of the present invention is shown. (In this embodiment, the same or equivalent members as those described in the first embodiment will be attached with the same reference numerals and will be omitted. The auxiliary structure of the embodiment is different from the first embodiment in that the first joint portion 26 is an annular groove, so that the second joint portion 42 of the first end 415 of the dustproof ring 4 is After being combined with the first joint portion 26 of the protrusion 21 of the lock case 2, the dust ring 4 is rotatable relative to the lock case 2 to adjust the position of the notch 412 of the dust ring 4 relative to the lock case 2, which is convenient for the Assembly between the dust ring 4 and the latch drive mechanism 91. The foregoing is a description of a preferred embodiment of the present construction, and the design spirit according to the present invention can be variously modified; for example, the groove constituting the first joint portion 26 and the convex portion constituting the second joint portion 42 The granules are interchangeable. Therefore, obvious substitutions and modifications to those skilled in the art will still be incorporated in the scope of the patent claimed herein. 13 M345108 [Simple description of the drawings] The first figure is a combined perspective view of the auxiliary lock of the first embodiment of the present invention, and shows that the auxiliary lock is assembled on a door panel; the second figure is along the line 2 - 2 of the first figure. A partial cross-sectional view taken along line 3-3 of the first figure; the fourth figure is an exploded view of the partial component of the auxiliary lock of the first figure; • The fifth figure is similar to the second figure A cross-sectional view of the auxiliary lock of the second embodiment of the present invention; and a sixth partial view of the auxiliary component of the auxiliary lock of the fifth figure. [Description of main components] 1. Lock cylinder 10 · Locking core 11 · Torque blade 12. Inner end 121. End surface 131 · 132 · Flange 14 · Positioning plate 15. Screw hole 2. Lock housing 2 (K longitudinal hole 201 · 202·shoulder 21·protrusion 211·inner peripheral wall 212. outer peripheral wall 22. inner end surface 25. screw 26·first joint 3. decorative cover 4. dustproof ring 40. central hole 41. annular wall 411·arc 412· Notch 413· Inner surface M345108 414. Outer surface 415. First end 416. Second end 42. Second joint 5. First joint plate 52·62· Hole 6. Second joint plate 61. Handle 7. Screw 8. Recording key 9. Door panel 90. Perforation 91. Locking flash drive mechanism 911. Retractor 912. Buckle 913. Hole 92. Slot 93. Outer side 94. Inner side 15