TWM271915U

TWM271915U - Improved grip lever structure for doors and windows

Info

Publication number: TWM271915U
Application number: TW94200914U
Authority: TW
Inventors: Wen-Rung Ni
Original assignee: Wen-Rung Ni
Priority date: 2005-01-18
Filing date: 2005-01-18
Publication date: 2005-08-01

Description

M271915 四、創作說明（1) 【新型所屬之技術領域】本創作係有關一種裝設於門窗上，供快速開啟、關閉門窗使用之「門窗把手結構改良」，尤指其具有按鈕開關之設計’開啟時必須按壓住該按鈕開關方能作開啟之動作者。【先前技術】目前裝設於門窗上之把手結構主要有兩種方式 4把手上設計有鎖頭，另一種則無，設計有鎖頭之把手因 1用上較不方便，且鎖頭之變化性小，因此現多半使用無鎖頭設計之把手，而鎖頭則再另外安裝，或亦可不安裝，，裝設在只由内部開啟之門或窗上時，如附件所示，該即係目前常見之門窗把手結構，其係為鈞局八十九年七月日核准公告第3 9 71 0 9號的「改良式門窗把手」，該申靖曰期為八十八年五月十四日，而由附件之圖式中可分析^ 八„其尚有下述之缺失··一般只由内部開啟使用或與鎖頭設計.使用之把手，其開啟時均係直接轉動握把（1〇)後即可連動驅動柱（50)讓門窗打開，而定位處（3〇)之 ,=2)與定位凸緣(33) ’只是為提供握把⑴)轉動前 :適當定位，稍為轉動即能開啟，該種結構之設計雖然，，但對於有小朋友之家庭而言，使用上實則不甚安全， '曰、=在剛學會走路與讀小學這段„，對於各種事子奇且好動’但又不懂自身之安全，因此常常會自己去開啟門窗，而將頭望外探或跑“，雖然：M271915 4. Creation Instructions (1) [Technical Field to which the New Type belongs] This creation relates to a "door and window handle structure improvement" installed on doors and windows for fast opening and closing of doors and windows, especially its design with a button switch. ' When turning on, you must press and hold the button switch to be able to do the action. [Previous technology] At present, there are mainly two ways of the handle structure installed on doors and windows. 4 The handle is designed with a lock, and the other is not. The handle with a lock is more inconvenient because of 1 and the lock changes. Due to its small nature, most of the handles without locks are now used, and the locks are installed separately or without installation. When installed on a door or window opened only from the inside, as shown in the attachment, the At present, the common door and window handle structure is the "Improved Door and Window Handle" approved by the Bureau on July 89, 1989. The application date is May 14, 1998. It can be analyzed from the attached drawings. ^ "It still has the following missing ... It is generally only used by internal opening or designed with a lock. When using the handle, the handle is directly turned when the handle is opened (1 〇) After that, the drive column (50) can be linked to open the doors and windows, and the positioning (30), = 2) and the positioning flange (33) 'just to provide a grip ⑴) Before turning: Proper positioning, slightly turning It can be opened. Although the design of this structure is, but for families with children, It is not very safe to use, 'say, = in the period of just learning to walk and read elementary school „, strange and active for all kinds of things', but do not understand their own safety, so they often open the doors and windows by themselves, and Exploring or running ", though:

M271915 四、創作說明（2) 友均有家長之看護，但，該通常僅係一瞬間之差異，對於常有小朋友自行開啟門窗跑出大馬路，或由高樓窗戶墜下 ’即多半係該原因造成，因此如何改良目前習知之門窗把手，使其仍具有使用之方便性，及具有使用之安全性，乃係本創作人所欲探討之問題點。【新型内容】欲解決之技術問題點：習知之門窗把手具有使用之方便性，但卻欠缺使用之女全性，是以如何保留使用之方便性同時，再增加其使用之安全性，讓不懂事之小朋友不虞能夠隨便開啟，再者該種結構之設計組裝上較繁雜而不便，此乃欲解決之技術問題點者。解決問題之技術特點：本創作係提供一種門窗把手結構改良，其係可包含有 •一握把、一按紐、一定位座、一驅動枉、一卡結柱、一鎖結座及一彈性環片，其中握把内側面設有一結合孔座及 •貫穿孔，按鈕之兩侧設有勾合槽，内侧面上方設有一限位柱’下方結合有一彈菁，定位座之外侧面兩方延伸出有勾合腳，及凹設有一彈簧容置槽，貫設有一限位孔’内側面處則凹設有一卡結槽，上方貫設有一穿孔，卡結柱之内側面結合有一彈簧，鎖結座之前側面下方凹設有一卡結枉容槽，上方穿設有一定位槽孔，該定位槽孔内周緣並凹設M271915 IV. Creation instructions (2) Friends are cared by parents, but this is usually only a momentary difference. For children who often open doors and windows to run out of the road or fall from high-rise windows, that is mostly the case. The reason is, therefore, how to improve the current door and window handles so that they still have the convenience and safety of use is the problem that the creator wants to explore. [New content] The technical problems to be solved: The door and window handles of the acquaintance are convenient to use, but lack the feminine comprehensiveness of use. How to keep the convenience of use while increasing the safety of its use, so that A sensible child can easily open it, and the design and assembly of this structure is more complicated and inconvenient. This is the technical problem to be solved. Technical features to solve the problem: This creation provides an improved door and window handle structure, which can include: • a grip, a button, a positioning base, a drive pin, a locking post, a locking base and an elasticity A ring piece, in which a grip hole seat and a through hole are provided on the inner side of the grip, hook grooves are provided on both sides of the button, a limiting post is provided above the inner side, and an elastic lens is combined below the two sides of the positioning seat. Hook feet are extended, and a spring accommodating groove is recessed. A limiting hole is continuously provided. A locking groove is recessed at the inner side. A perforation is provided through the upper side. A spring and a lock are combined on the inner side of the locking post. A snap-fit trough is recessed on the lower side of the front side of the knot seat, and a positioning slot is penetrated on the upper side. The inner periphery of the positioning slot is recessed.

第6頁 M271915 四、創作說明（3) 有卡止槽，彈性％片之中央設有方形之定位穿孔，而於定位穿孔之四邊角處各設有一彈性槽，另彈性環片之周邊設有凸出之卡止緣，藉由上述結構，俾以組成門窗把手結者0 . 對照先前技術之功效：構改良’其要旋開握限位柱之定位座壓離結柱之限位無法轉動，具使用之安全性， (一）本創作提供之門窗把手結把之過程中必須再順手按壓按鈕，將 j結槽，當無按壓按鈕時，則因受卡 ’該可避免不懂事之小朋友隨易開啟且仍具方便性者。 (二）本創作提供之門窗把手結構改良，其驅動柱固没於結合孔座中後，鎖結座先與定位座貼合，當再與鎖结座結合時，驅動柱與結合孔座係穿過定位槽孔，再^結: 孔座經沖壓之加工，使結合孔座之端緣外翻變形為鉚合緣，此即可令握把、按鈕、定位座及驅動柱能穩固與鎖結座結a ，其組成結合之構件更為簡單，組裝設亦更簡易、方便者。春（二）本創作提供之門窗把手結構改良，其僅利用一彈性環片，並藉由於彈性環片之中央設置方形^定位穿孔，定位穿孔之四邊角處設置彈性槽，及彈性環片之周邊設置凸出之卡止緣，配合之定位槽孔内周緣並凹設有卡止槽，藉此即可供驅動柱穿設之定位，組成之構件 = 亦更方便者。衣Page 6 M271915 4. Creation instructions (3) There are locking grooves, a square positioning perforation is provided in the center of the elastic percent piece, and an elastic groove is provided at each of the four corners of the positioning perforation, and the periphery of the elastic ring piece is provided. With the above-mentioned structure, the protruding latching edge is used to form the door and window handle knot. Compared with the effect of the prior art, the structure is improved. It is safe to use. (1) In the process of knotting the door and window handles provided by this creation, you must press the button in order to tie the groove. When there is no button pressed, you should avoid the unreasonable children. Easy to open and still convenient. (2) The door and window handle structure provided by this creation is improved. After the driving column is fixed in the coupling hole seat, the locking seat is first fitted with the positioning seat. When it is combined with the locking seat, the driving column and the coupling hole seat are connected. Pass through the positioning slot, and then knot: The hole seat is stamped to deform the end edge of the combined hole seat into a riveted edge, which can make the grip, button, positioning seat and driving column stable and locked. Set up a knot, its composition and combination of components is simpler, assembly and installation is also simpler and more convenient. Spring (2) The door and window handle structure provided by this creation is improved. It only uses an elastic ring piece, and because the center of the elastic ring piece is provided with a square ^ positioning perforation, elastic grooves are set at the four corners of the positioning perforation, and the elastic ring piece is A protruding locking edge is provided on the periphery, and a matching locking groove is provided on the inner peripheral edge of the positioning slot hole. This can be used for positioning of the driving column. The component component is also more convenient. clothes

M271915 四、創作說明（4) 【實施方式】為使貴審查委員對本創作之目的、特徵及功效能夠有更進一步之瞭解與認識，以下茲請配合【圖式簡單說明】詳述如后：請參閱第第1圖及第2圖所示觀之，其係可包含有：一握把（10)、一按鈕（20)、一定位座（3〇)、一驅動柱（40 ) ---^結柱（50)、一鎖結座（60)及一彈性環片（7〇) 魯其中握把（1 0 )内側面設有一結合孔座（11 )·及一貫穿孔（1 2 )，按鈕（2 0 )之兩側設有勾合槽（21 )，内侧面上方設有一限位柱（22 )，下方結合有一彈簧（23 )，定位座（3 0 )之外側面兩方延伸出有勾合腳（3 1 )，及凹設有一彈簧容置槽（32 )，貫設有一限位孔（33 )，内側面處則凹設有一卡結槽（34 )，上方貫設有一穿孔（35 )，卡結柱（5 0 )之内側面結合有一彈簧（5 1 )，鎖結座（6 〇 ) 之前側面下方凹設有一卡結柱容槽（6 1 )，上方穿設有一定位槽孔（6 2 )，該定位槽孔（6 2 )内周緣並凹設有卡止 jp ( 621 )(該部結構請參閱第3圖結構之局部放大圖所 I)，彈性環片（70 )之中央設有方形之定位穿孔（71) ，而於定位穿孔（71 )之四邊角處各設有一彈性槽（72 ) ，另彈性環片（70 )之周邊設有凸出之卡止緣（73 )。其組合時，復由第1圖及第4圖所示觀之，按鈕（20) 是穿設於握把（10)之貫穿孔（12)中，定位座（30)再續由該M271915 IV. Creation Instructions (4) [Implementation] In order for your review members to have a better understanding and understanding of the purpose, features and effects of this creation, please cooperate with the following [Schematic Description] for details: Referring to the views shown in Fig. 1 and Fig. 2, the system may include: a grip (10), a button (20), a positioning base (30), a driving post (40) --- ^ The knot post (50), a lock knot seat (60), and an elastic ring piece (70). The inner side of the handle (1 0) is provided with a combination hole seat (11) and a through hole (12). Hook grooves (21) are provided on both sides of the button (20), a limiting post (22) is provided above the inner side, a spring (23) is combined below, and two sides of the outer side of the positioning seat (30) extend out There are hook feet (31), and a spring receiving groove (32) is recessed, a limiting hole (33) is continuously provided, a locking groove (34) is recessed at the inner side, and a perforation ( 35), a spring (5 1) is combined on the inner side of the locking post (50), a locking post receiving groove (6 1) is recessed below the front side of the locking seat (60), and A positioning slot (6 2) is penetrated, and the inner peripheral edge of the positioning slot (6 2) is recessed with a locking jp (621) (for the structure of the part, please refer to the enlarged view of the structure of FIG. 3), elastic The center of the ring piece (70) is provided with a square positioning perforation (71), and each of the four corners of the positioning hole (71) is provided with an elastic groove (72), and the periphery of the elastic ring piece (70) is provided with a protrusion. The snapping edge (73). In combination, as shown in Figures 1 and 4, the button (20) is inserted into the through hole (12) of the grip (10), and the positioning seat (30) is continued by the

第8頁 M271915 四、創作說明（5) 面結合，而令結合孔座（11 )穿過穿孔（3 5 )，限位柱（2 2 )穿設於限位孔（33)，彈簧（23)容置入，彈簧容置槽（32)，另勾合腳（31)則勾設於勾合槽（21)内，驅動柱（4〇)則又再設於結合孔座（1 1 )中，卡結柱（5 0 )係容置入鎖結座（6 〇 )之卡結柱容槽（61)，鎖結座（60)再與定位座（3〇)貼合，並令驅動柱（40)與結合孔座（11)穿過定位槽孔（62)，及卡結柱（5〇) 外側段會容置入卡結槽（34)中，此時卡結柱（50)外側並與限位柱（22)接觸’而穿過定位槽孔（62)之結合孔座（11)會再經沖壓之加工，使結合孔座（1丨）之端緣外翻變形為鉚合 #(111)，使握把（10)、按鈕（20)、定位座（3〇)、驅動柱 (40)之結合能於鎖結座（6〇)上做固定及樞轉，驅動柱（4〇) 另端再穿套彈性環片（70)固定，彈性環片（7〇)並能以卡止緣（73)限位於卡止槽（621)中防止旋動。其使用時’如第5、6圖所示，如要旋動握把（1〇) 時，須先按壓按鈕（20)，以按鈕（2 0)之限位柱（22)壓抵卡、’、rr柱（5 0 )，使卡結柱（5 Q )脫離卡結槽（3 4 )中，俾令握把 (1(0、按鈕（20)、定位座（30)能以驅動柱（4〇)為轴心柩轉，g握把（10)旋轉一角度後，驅動柱（4〇)會受彈性環片 j70)作一適當限位，而卡結柱（5〇)則會被定位座（3〇)壓抵 ’主完全埋入卡結柱容槽（61)，反之當欲關上時，只需將握把（1 0 )逆時針轉回，卡結柱（5 〇 )外侧段即會再彈回卡結槽 (34)中卡止，而驅動柱（4〇)於彈性環片（7〇)之定位穿孔曰 (71^樞轉時，可利用定位穿孔（71)之形狀供驅動柱（4〇)轉動一角度之定位，而彈性槽（72)則係供轉動之過程擴張定Page 8 M271915 Fourth, the creation description (5) is combined on the surface, and the combination hole seat (11) is passed through the perforation (3 5), the limit post (2 2) is passed through the limit hole (33), and the spring (23) ), The spring accommodating groove (32), the hooking feet (31) are set in the hooking groove (21), and the driving post (40) is set in the joint hole seat (1 1). The locking post (50) is a locking post receptacle (61) housed in a locking post (60), and the locking post (60) is then fitted with the positioning post (30), and the driving post is made (40) and the coupling hole seat (11) pass through the positioning slot hole (62), and the outer section of the locking column (50) will be accommodated in the locking slot (34). At this time, the outside of the locking column (50) And contacting the limiting post (22) and passing through the joint hole seat (11) of the positioning slot hole (62) will be processed by stamping to deform the end edge of the joint hole seat (1 丨) into a riveted shape # (111), so that the combination of the grip (10), the button (20), the positioning base (30), and the driving post (40) can be fixed and pivoted on the locking base (60), and the driving post ( 4〇) The other end is fixed with an elastic ring piece (70), and the elastic ring piece (70) can be located on the card with the locking edge (73). Grooves (621) for preventing swirl. In use, as shown in Figures 5 and 6, if you want to rotate the grip (10), you must first press the button (20), and press the limit post (22) of the button (20) against the card, ', Rr post (5 0), so that the locking post (5 Q) is released from the locking groove (3 4), and the grip (1 (0, button (20), positioning seat (30) can drive the post) (40) is the rotation of the axis. After the g-grip (10) is rotated by an angle, the driving column (40) will be adjusted by the elastic ring piece j70) to a proper limit, while the locking column (50) will be The positioning seat (30) is pressed against the 'main' completely embedded in the locking column receptacle (61), otherwise, when it is to be closed, it is only necessary to turn the grip (1 0) counterclockwise, and the locking column (50) The outer segment will spring back into the locking groove (34) and stop, and the driving post (40) will be positioned in the elastic ring piece (70), and the positioning hole (71) can be used when pivoting (71) The shape is used for positioning the driving column (40) at an angle, and the elastic groove (72) is used for expansion and determination during the rotation process.

第9頁 M271915 四、創作說明（6) 位穿孔（7 1 )，使驅動柱（4 0 )得以轉動者。藉上述具體實施例之結構，可得到下述之效益··（一 )其要旋開握把（10)之過程中必須再順手按壓按鈕（2〇)，將限位柱（22)之定位座（30)壓離卡結槽（34)，當無按壓按知（2 0 )時’則因受卡結柱（5 〇 )之限位無法轉動，該可避免不懂事之小朋友隨易開啟，具使用之安全性，且仍具方便性者，（一）其驅動柱（4 〇 )固設於結合孔座（11)中後，鎖結座（60)先與定位座（30)貼合，當再與鎖結座（6〇)結合時，驅動柱（40)與結合孔座（11)係穿過定位槽孔（62)，再將 #合孔座（11)經沖壓之加工，使結合孔座（11)之端緣外翻變形為鉚合緣（111)，此即可令握把（1〇 )、按鈕（2〇)、定位座（3 0 )及驅動柱（4 〇 )能穩固與鎖結座（6 〇 )結合，其組成結合之構件更為簡單，組裝設亦更簡易、方便者；（三）其僅利用一彈性環片（70)，並藉由於彈性 ’; 生=位穿孔(71)，定位穿孔(71)之四邊角：設止η ’及彈性環片（70)之周邊設置凸出之卡 = ，配合之定位槽孔（62)内周緣並凹設有卡止槽動柱(4°)穿設之定位，組成之構件更少，纟不上所述，本創作確實已經達於突破性之社槿，昱内容，同時又能夠達到產業二利二= 利法相ίΐ:未見之於任何刊物，亦具新穎性’當符合專去相關法條之規定，爰依法提出新型專利申請，懇請Page 9 M271915 Fourth, creation instructions (6) Bit perforation (7 1), so that the driving column (40) can be turned. By the structure of the above specific embodiment, the following benefits can be obtained: (1) In the process of turning the grip (10), the user must press the button (20) smoothly to position the limit post (22). The seat (30) is pressed away from the latching groove (34). When the button (20) is pressed without pressing, it cannot be turned due to the limit of the latching post (50), which can prevent unintelligent children from opening easily. For safety and convenience, (1) After the drive column (40) is fixed in the combination hole seat (11), the locking seat (60) is first attached to the positioning seat (30). When it is combined with the lock socket seat (60), the driving column (40) and the coupling hole seat (11) pass through the positioning slot (62), and then the # 合孔座 (11) is processed by stamping So that the end edge of the combined hole seat (11) is turned out into a riveted edge (111), which can make the grip (10), the button (20), the positioning seat (30), and the driving post (4). 〇) can be firmly combined with the locking seat (60), the components of its combination are simpler, the assembly is simpler and more convenient; (3) it only uses an elastic ring piece (70), and because of its elasticity '; Health = Bit Hole (71), the four corners of positioning perforation (71): set stop η 'and the protruding card around the elastic ring piece (70) =, the positioning groove hole (62) fits the inner peripheral edge and is recessed with a stop The positioning of the slotted moving column (4 °) has fewer components. Not to mention, this creation has indeed reached the groundbreaking social content and the content of the industry, and at the same time, it can achieve the industry's two benefits = profit law phase ίΐ: I have n’t seen it in any publications, and it is also novel. 'When it meets the requirements of relevant laws and regulations, I will file a new patent application according to law.

第10頁 M271915 勾、創作說明（7) 鈞局審查委員授予合法專利權，至為感禱。唯以上所述者，僅為本創作之一較佳實施例而已，當不能以之限定本創作實施之範圍；即大凡依本創作申請專利範圍所作之均等變化與修飾，皆應仍屬本創作專利涵蓋之範圍内。Page 10 M271915 Hook, Creation Instructions (7) The jury's examiner granted legal patent rights, and I really pray. The above is only one of the preferred embodiments of this creation. When it cannot be used to limit the scope of implementation of this creation; that is, all equal changes and modifications made in accordance with the scope of the patent application for this creation shall still belong to this creation. Within the scope of the patent.

第11頁 M271915 圖式簡單說明【圖式簡單說明】第1圖：係本創作之立體組合圖。第2圖··係本創作之立體分解圖。第3圖：係本創作之鎖結座與彈性環片之局部放大立體圖。第4圖：係本創作為關上狀態之組合剖面圖。第5圖：係本創作旋轉為開啟狀態之組合剖面圖。第6圖：係本創作旋轉為開啟狀態之立體組合圖。 • 附件：係本國專利公報公告號第3 9 7 1 0 9號之公告影本【元件符號說明】握把一一一一（10) 貫穿孔---（12) 按紐一一一—（20) 勾合槽一一一（21) 定位座一一一（30) 彈簧容置槽一（32) _結槽一一一（34) 驅動柱一一—（40) 卡結柱一一一（50) 鎖結座---（60) 定位槽孔一一（62) 彈性環片——(70) 結合孔座——（11) 彈簧----（23) 限位柱---（22) 勾合腳---（31) 限位孔---（33) 穿孔----（35) 瘅簧----（51) 卡結柱容槽一（6 1 ) 卡止槽一一一（621) 定位穿孔一一（71)Page 11 M271915 Schematic description [Schematic description] Figure 1: This is a three-dimensional combination of the creation. Figure 2 is a three-dimensional exploded view of this creation. Figure 3: A partially enlarged perspective view of the locking seat and elastic ring piece of this creation. Figure 4: A sectional view of the composition in a closed state. Figure 5: This is a combined sectional view of the creative rotation turned on. Figure 6: This is a three-dimensional combination of the original rotation of the creation. • Attachment: This is a copy of the announcement of the National Patent Gazette Bulletin No. 3 9 7 1 0 9 [Explanation of component symbols] Grips one by one (10) through-holes --- (12) buttons one by one-(20 ) Coupling grooves one by one (21) Positioning seats one by one (30) Spring accommodating grooves one (32) _Knot grooves one one one (34) Drive columns one by one-(40) Locking columns one by one ( 50) Locking seat --- (60) Positioning slot hole one by one (62) Elastic ring piece-(70) Combined hole seat-(11) Spring-(23) Limiting post --- ( 22) Hook feet --- (31) limit holes --- (33) perforation ---- (35) spring spring ---- (51) locking column container slot 1 (6 1) locking slot one One One (621) Positioning Perforations One One (71)

第12頁 M271915 圖式簡單說明彈性槽---（72) 卡止緣---（73)Page 12 M271915 Simple illustration of the drawing Elastic groove --- (72) Locking edge --- (73)

第13頁Page 13

Claims

M271915 V. Application for patent scope 1 'An improved door and window handle structure, which can include: a grip, a button, a positioning seat, a driving column, a locking column, a locking seat and an elastic ring piece, It is characterized in that: the inner side of the grip is provided with a combination hole seat and a through hole, the two sides of the button are provided with hook grooves, the upper side of the inner side is provided with a limiting post, and the lower side is combined with a spring 'positioning seat extending on both sides of the outer side. There are engaging feet, a limit hole is provided through the groove, and a locking groove is recessed at the inner side. A perforation is provided at the upper side. A spring is combined on the inner side of the locking post, and an f-lock is recessed below the front side of the locking seat. A column slot is provided with a positioning slot above. With the above structure, the button is inserted into the through hole of the grip, and the positioning seat is then joined by this surface, and the combination hole seat is passed through the perforation to limit the position. The column is inserted in the limit hole. Another hook is provided for hooking in the coupling groove. The driving column is tied into the coupling hole seat. The locking column is accommodated in the locking column groove of the locking seat. Lock the knot seat and fit with the positioning seat, so that the driving post passes through The slot hole and the outer section of the latching column will be accommodated in the latching slot, and the outer side of the latching column is abutted against the limiting column. The driving column passes through the end and is fixed to the positioning slot hole through an elastic ring piece. The middle one 02. The door and window handle structure described in item 1 of the scope of the patent application is improved, and a spring receiving groove is recessed on the outer side of the positioning seat, and the spring on the button can accommodate the positioner. 3. The door and window handle structure improvement described in item 1 of the scope of the patent application, 'wherein, after the driving column is fixed in the coupling hole seat, the locking seat is first fitted with the positioning seat.' When it is then combined with the locking seat, The driving column and the coupling hole seat pass through the slot grooves, and then the coupling hole seat is stamped to make the end of the coupling hole seat

Page 14 M271915 V. Scope of patent application The edge eversion deformation is a riveted edge, so that the grip, the pressing surface, the seat and the driving column can be fixed and combined with the locking seat. 4. The door and window handle structure improvement described in item 1 of the scope of patent application, wherein the inner periphery CU of the positioning slot hole of the locking seat is provided with a locking groove, the center of the elastic ring piece is provided with a square positioning perforation, and the positioning An elastic groove is provided at each of the four corners of the perforation, and a protruding locking elastic ring X is provided around the elastic ring piece to accommodate the positioning slot hole. The locking edge is positioned on the locking ridge to prevent rotation, and is driven. The shape of the positioning perforation pin of the column on the elastic ring. The shape of the positioning perforation of the driving hole is used to drive the column to rotate. The fixed perforation can be used to expand the positioning perforation.