201241293 六、發明說明： 【發明所屬之技術領域】 本發明係關於開關箱門手把之技術領域；尤指一種結 構簡單、操作便利的開關箱門手把及其緩升結構，可據以 防止開啟門手把時產生急速彈起之現象。 【先前技術】 按，所謂開關箱門扣鎖，主要係指用於電氣箱或配電 箱的門扣鎖結構，其一般係於一開關箱體上設有一框座， 該框座上開設有一凹槽，該凹槽係供容置一鎖具、一與鎖 具相連接之擋片與一把手，該把手一端係枢設於凹槽中， 且該端之端部係設有一舌片；藉由鎖具之開啟與關閉動作 ，以控制擋片產生伸縮動作而使把手脫離卡掣，進而驅使 把手彈起，再據以帶動舌片轉動，使其脫離或抵接於箱體 内側，以達到開關箱門的效用。所述結構中，一般係採用 扭力彈簀作為驅使把手彈起之手段，當鎖具控制擋片收縮 時，該把手可藉由扭力彈簧的彈性回復力而急速彈起，進 而提供使用者操作。 惟，前述結構係利用扭力彈簧的彈性回復力作用而得 以急速彈起，操作時易造成使用者手指的不適感，且如有 不慎，更可能彈傷手部。 此外，把手彈起急速易與框座上其他相關構件碰撞， 並容易損及該把手的樞設部位，產生嚴重地磨耗受損的情 況，導致相關構件的使用壽命縮短；此外，構件相互急速 4 201241293 碰撞更會衍生噪音，增添操作上之不適感。 【發明内容】 有鑑於此，本發明之主要目的，乃在提供一種可防止 開啟時產生急速彈起現象的開關箱門手把及其緩升結構。 爰是，本發明所述開關箱門手把，主要包含：一門扣 本體，其兩端各開設有第一容室與第二容室，門扣本體表 面並開設有連通該第一容室與第二容室的第三容室，所述 第一容室内側設有通孔，於第一容室外部後端周緣處設有 擋緣；一連動轴，係置於第一容室内，其可依軸向定義出 樞接段、軸身段及穿出於通孔的固定段，該軸身段上凹設 有一連通樞接段開口的容置槽，該固定段的外徑表面上設 有數個凹槽；於容置槽中，並設置有一緩衝裝置，所述缓 衝裝置包含一彈簧罩及一呈預壓狀態的彈簧，彈簧頭端頂 抵於容置槽内側，尾端頂撐在彈簧罩内側，使彈簧罩可適 時突出或被壓縮於容置槽中；一鎖具，係置於第二容室内 ，其包含一鎖心體與一可由鎖心體連動的擋塊，該擋塊一 端設有扣持部，相異一端設有擋壁，該擋壁與第二容室内 壁間設有一復位彈件；一手把，係置於第三容室内，手把 一端位於第二容室，該端設有可為擋塊扣持部所扣持的扣 掣槽，手把相異一端位於第一容室，該端設有與連動軸之 枢接段樞設的樞設部，該樞設部並抵制於緩衝裝置的彈簧 罩上；及一舌片，係設於門扣本體後面，且固接於連動軸 201241293 的固疋段末端’舌片與連動軸間並套掣一限位環片，該限 位環片内賴有可卡掣凹槽而蚊位於連動&的凸部， 限位環片外緣設有可用以抵制擋緣的抵接部，藉以限定連 動軸帶動舌片轉動的角度。 據此設計，該手把可透過該缓衝裝置之彈簧的彈性回 復力向外頂撐彈簧罩，再由該彈簧罩直線向外頂抵該手把 之平面部底緣，使其翹起；由於缓衝裝置造成之力臂較小 ，加上可提供一間接頂撐的緩衝作用，是以作用時，不會 發生彈簧直接撞擊而導致手把急速彈起的現象，可使操作 動作可更加優雅而順暢，並可避免手把因急速彈起而傷及 手部或導致手部不適的情形，同時減少相關構件碰撞磨耗 及衍生噪音之情事。 較佳者’前揭彈簧罩之中心’可開設有一氣孔，藉以 消除容置槽内的真空，使彈簧之作用更加順暢，進而提升 緩衝裝置的緩衝效果。 【實施方式】 為使貴審查委員對本發明之構造特徵與功效能有更 進一步的瞭解與認同’兹列舉以下較佳實施例’並配合圖 式說明如后。 請參閱第一圖至第三圖。第一圖係揭示本發明較佳實 施態樣的立體組合圖，第二圖係揭示較佳實施態樣的立體 組設圖；第三圖係揭示較佳實施態樣的剖面示意圖。 本發明所述開關箱門手把及其緩升結構，主要包令^ _ 6 201241293 門扣本體(1)、穿設於門扣本體(1)兩端的一連動軸(2)及一鎖 具(3)、一設於門扣本體(1)正（前）面的手把(4)以及一設於 門扣本體(1)背（後）面且固接於連動軸(2)—端的舌片（5) ’所述手把(4)的前端係樞設於連動軸(2)，手把⑷後端，則 可配合鎖具(3)卡掣或脫離之效用而適時形成開啟或關閉 之狀態。 所述門扣本體(1)主要係固定在一箱體（例如電氣箱或 配電箱…等）的門板（圖中未示）上，該門扣本體(1)兩端 ’各開設有第一容室（10)與第二容室（11)，分別提供容置連 動軸(2)與鎖具(3)，門扣本體(1)上同時設有一自正（前）面 凹陷且連通第一容室(10)與第二容室（11)的第三容室（12)， 以供容置手把(4);所述第一容室（10)内側，更設有一通孔 (100) ’以便連動轴(2)伸出第一容室（1〇)以連結舌片（5);於 第一容室（10)外部後端面’臨於周緣處，則凸起成形有二 位於對角位置的擋緣(101)。 所述連動軸(2)係置於門扣主體(1)的第一容室（10)内， 該連動轴(2)依軸向可定義出樞接段(20)、一軸身段(21)及一 固定段(22)。該樞接段(20)具有一徑向之開口供手把⑷前端 插置，而鄰於其開口兩側分別設有樞孔(2〇〇)，以供穿設一 定位銷(201) ’進一步可與手把(4)前端樞接；軸身段(21)上 係沿軸向凹設有一連通樞接段(20)開口的容置槽（210);該 固定段(22)係穿出第一容室（10)的通孔(1〇〇)，固定段(22)臨 接於通孔(100)的外徑表面上，設有數個呈預設圓周角度分 配的凹槽(220)，又固定段(22)末端係成形為一斷面呈等多 邊型之桿體，且固定段末端（22)開設有一鎖孔(221)，藉以 201241293 連結舌片（5)。 其中，於軸身段(21)之容置槽(210)中，係設置有一缓 衝裝置(23)，所述緩衝裝置（23)包含一彈簧罩（2加)及一呈預 壓狀態的彈簧（231)’該彈簧（231)頭端係頂抵於容置槽(21〇) 内側，尾端則係頂撐在該彈簧罩(230)内側，使彈簧罩(23〇) 可適時突出或被壓縮於容置槽(210)中；另於彈簧罩(23〇) 之中心係可開設有一氣孔(2300)，當緩衝裝置（23)置於容置 槽（210)時，可透過該氣孔(23〇〇)消除因内部氣密所形成之 真空，俾使彈簧（231)之作用更加完全而順暢，進而提升缓 衝裝置(23)的緩衝效果。 所述鎖具(3)係置於門扣主體(1)的第二容室（11)内，該 鎖具(3)包含一鎖心體(3〇)與一可由鎖心體(30)連動的擋塊 (31)。該鎖心體(3〇) —端係外露於門扣主體q)之正面，鎖心 體(30)相異一端設有作用部(30〇)(於本實施例中該作用部 (300)係為凸塊）。該擋塊(31)則係位於作用部(300)末端， δ亥擔塊(31)的一端設有一扣持部（310)，擔塊(31)上並設有一 開槽（311) ’以供鎖心體(30)之作用部(3〇〇)伸入，藉以帶動 該擋塊(31)於第二容室（η)内滑移，並以扣持部(310)扣持所 述手把(4)，使其定位；擋塊(31)的另一端設有一擋壁(312) ’該擋壁(312)與第二容室（11)内壁之間，設置有一復位彈 件(32) ’提供擋塊(31)受到鎖心體(30)帶動滑移之後，可藉 由戎復位彈件(32)之彈性回復力，推抵該擔塊(31)復位。 而本案之手把(4)係置於門扣主體(1)的第三容室（12)， 手把(4)的後端係位於第二容室（11)，並成形有一可為擋塊 (31)之扣持部（31〇)對應扣持的扣掣槽(40);手把(4)前端則 201241293 *位於第谷室（10)，並成形有一樞設部(41)，該樞設部（41) 又有貝穿其兩側的樞孔（410)，藉由定位銷（2〇1)而與連 動軸⑺樞接；該樞設部(41)朝向第一容室⑽内側之處，係 成形為-平面部(411)，藉以抵制設於連動 缓衝裝 置(23)。 一》另，舌片（5)係位於連動軸(2)底端，該舌片（5)上開設有 花鍵槽(50) ’藉以套掣連動軸(2)之固定段(22)上，舌片（5) 與連動軸(2)間，並套擎有一限位環片（51)，該限位環片（51) 内、’彖=成有凸部(51!)，以其套入固定段(22)之凹槽(22〇)， 藉以定=在連動軸(2)上，再以固定件(52)依序穿設舌片（5) 、限位環片（51)而鎖固至連動軸(2)的鎖孔(221)，形成一體 態樣’俾防止舌片（5)自連動軸(2)上脫落。其中，於限位環 片（51)外緣，係於相對位置（即相隔180。度）設有呈伸出 狀的一抵接部（51〇)，可據由抵接部（51〇)與第一容室（1〇)外 部之擋緣(101)的抵制作用，藉以限定連動軸(2)帶動舌片（5) 轉動的角度。 再睛參閱第三圖與第四圖。其中，第三圖同時在揭示 較佳實施態樣關閉時的剖面示意圖；第四圖係揭示較佳實 施態樣開啟時的剖面示意圖。 當使用者欲開啟一箱體之門板（圖中未示）時，係先 行驅動該鎖具(3)，使其作用部(3〇〇)由一卡掣位置旋轉至一 脫離位置上，以帶動擋塊(31)位移，使擋塊(31)的扣持部 (310)脫離手把(4)的扣掣槽(4〇)，令該手把(4)形成可相對於 連動軸(2)自由樞擺的狀態。此時，連動軸(2)樞接段(2〇)内 201241293 的緩衝裝置(23) ’係據由呈預壓狀態之彈簧卿)的彈性回 =上簧卿)心鴨(23辑位於連動 、巴4)，直至緩衝裝置(23)與料把⑷之平面部 (叫完全_，使手把⑷得以完讀起至預設位置上。此 時，使用者可握持手把⑷以帶動舌片(5)轉動，使舌片⑼ 不再抵接箱體_ ’據㈣位環片（51)之抵接部(510)抵制 門扣主體⑴的擋緣(皿）’使手把(4_預狀開啟角度， 即可開啟箱體之門板。 據此a又ef，由於该手把(句透過緩衝裝置（23)之彈簀 (231)的彈性回復力向外頂樓彈簧罩(23〇)，再由該彈簧罩 (230)直線向外頂抵該手把(4)之平面部(411)底緣，使手把(4) 翹起至預設位置。其中，因緩衝裝置(23)相對於定位銷（201) 所對手把(4)造成之力臂較小，加上該緩衝裝置(23)可提供 一間接頂撐的緩衝作用’是以作用時，不會發生彈簧直接 撞擊而導致爭把(4)急速彈起的現象，俾使操作動作可更加 優雅而順暢，並可避免手把(句因急速彈起而傷及手部或導 致手部不適的情形，同時減少相關構件碰撞磨耗及衍生噪 音之情事。 當使用I欲關閉該箱體之門板時’僅需推回該手把(4) ，即可藉由鎖具(3)之復位彈件(32)推抵擋塊(31)復位，並據 由擔塊(31)的扣持部(31〇)重新扣持該手把(4)之扣掣槽(40) ’即可重新關閉箱體之門板。 以上所述說明，僅為本發明的較佳實施方式而已，意 201241293 在明確本發明的特徵，並非用以限定本發明實施例的範圍 ，本技術領域内的一般技術人員根據本發明所作的均等變 化，以及本領域内技術人員熟知的改變，仍應屬本發明涵 蓋的範圍。 【圖式簡單說明】 第一圖：本發明較佳實施態樣的立體組合圖。 第二圖：本發明較佳實施態樣的立體組設圖。 第三圖：本發明較佳實施態樣的剖面示意圖暨較佳實施態 樣關閉時的剖面示意圖。 第四圖：本發明較佳實施態樣開啟時的剖面示意圖。 【主要元件符號說明】 1 門扣本體； 10 第一容室 100 通孔； 101 擋緣； 11 第二容室； 12 第三容室 2 連動軸； 20 樞接段， 200 樞孔； 201 定位銷； 21 軸身段； 210 容置槽； 22 固定段； 220 凹槽； 221 鎖孔； 23 緩衝裝置 230 彈簧罩； 2300 氣孔； 231 彈簧； 3 鎖具； 30 鎖心體； 300 作用部； 31 擋塊； 310 扣持部； 311 開槽； 312 擋壁； 201241293 32 復位彈件； 4 手把； 40 扣掣槽； 41 樞設部 410 樞孔； 411 平面部 5 舌片； 50 花鍵槽 51 限位環片； 510 抵接部 511 凸部； 52 固定件201241293 VI. Description of the Invention: [Technical Field] The present invention relates to the technical field of a switch box door handle, and more particularly to a switch box door handle with a simple structure and convenient operation, and a lifting structure thereof, which can be prevented The phenomenon of rapid bouncing occurs when the door handle is opened. [Prior Art] According to the so-called switch box door lock, it mainly refers to a door lock structure for an electric box or a distribution box, which is generally provided with a frame on a switch box, and a recess is formed in the frame a groove for receiving a lock, a blocking piece and a handle connected to the lock, the handle is pivoted in the groove at one end, and a tongue is attached to the end of the end; Opening and closing action to control the flap to produce a telescopic action to disengage the handle from the cassette, thereby driving the handle to bounce, and then driving the tongue to rotate or disengage from the inside of the box to reach the switch box door utility. In the above structure, a torsion magazine is generally used as a means for urging the handle to bounce. When the lock control flap is retracted, the handle can be bouncing up by the elastic restoring force of the torsion spring to provide a user operation. However, the above structure is rapidly bounced by the elastic restoring force of the torsion spring, which may cause discomfort to the user's fingers during operation, and may cause a hand injury if accidentally. In addition, the handle bounces quickly and easily collides with other related components on the frame, and easily damages the pivoted portion of the handle, causing severe wear and damage, resulting in shortened service life of the related components; 201241293 Collision will generate noise and increase operational discomfort. SUMMARY OF THE INVENTION In view of the above, it is a primary object of the present invention to provide a switch box door handle and a lifting structure thereof that can prevent a rapid pop-up phenomenon when opened. That is, the switch box door handle of the present invention mainly comprises: a door buckle body having a first chamber and a second chamber at both ends thereof, and the surface of the door buckle body is open and connected to the first chamber and a third chamber of the second chamber, wherein the first chamber is provided with a through hole, and a retaining edge is disposed at a periphery of the rear end of the first chamber; a linkage shaft is disposed in the first chamber, The pivoting section, the shaft body section and the fixing section penetrating through the through hole may be defined in the axial direction, and the shaft body section is recessed with a receiving groove communicating with the opening of the pivoting section, and the outer diameter surface of the fixing section is provided with a number a groove; in the accommodating groove, and a buffer device is arranged, the buffer device comprises a spring cover and a spring in a pre-stressed state, the spring head end abuts against the inner side of the accommodating groove, and the tail end is supported at the end The inner side of the spring cover allows the spring cover to be protruded or compressed into the receiving groove at a proper time; a lock is placed in the second chamber, and includes a lock body and a stopper that can be interlocked with the lock body, the block One end is provided with a fastening portion, and the opposite end is provided with a retaining wall, and the retaining wall and the second inner chamber wall are provided with a complex a spring member; a handle is placed in the third chamber, and one end of the handle is located in the second chamber, and the end is provided with a buckle groove that can be fastened by the stopper holding portion, and the opposite end of the handle is located at the second end a locating portion pivotally disposed with the pivoting portion of the interlocking shaft, the pivoting portion resisting the spring cover of the cushioning device; and a tongue piece disposed behind the door latch body, and It is fixed between the end of the fixed section of the interlocking shaft 201241293 and the interlocking ring between the tongue and the interlocking shaft. The limiting ring has a corrugated groove and the mosquito is located in the joint of the linkage & The outer edge of the limiting ring is provided with an abutting portion for resisting the retaining edge, thereby defining an angle at which the linking shaft drives the tongue to rotate. According to this design, the handle can be externally supported by the elastic restoring force of the spring of the cushioning device, and then the spring cover is straightly outwardly pressed against the bottom edge of the flat portion of the handle to make it lift; Due to the small force arm caused by the buffer device, and the buffering action that can provide an indirect struts, when the action is applied, the spring will not directly hit and the handle will be suddenly bouncing, so that the operation can be further improved. Elegant and smooth, it can prevent the hand from hitting the hand or causing hand discomfort due to rapid bouncing, and reduce the collision wear and induced noise of related components. Preferably, the center of the front cover is provided with an air hole to eliminate the vacuum in the receiving groove, so that the spring acts more smoothly, thereby improving the cushioning effect of the buffer device. [Embodiment] In order to enable the reviewing committee to have a better understanding and recognition of the structural features and functions of the present invention, the following preferred embodiments are listed and described in conjunction with the drawings. Please refer to the first to third figures. The first drawing is a perspective view of a preferred embodiment of the present invention, the second drawing is a perspective view of a preferred embodiment, and the third drawing is a schematic cross-sectional view showing a preferred embodiment. The switch box door handle and the slow-lifting structure thereof of the invention mainly include a _ 6 201241293 buckle body (1), a linkage shaft (2) and a lock device (the two ends of the door body (1)) 3) a handle (4) disposed on the front (front) side of the door body (1) and a tongue disposed on the back (rear) surface of the door body (1) and fixed to the end of the linkage shaft (2) Piece (5) 'The front end of the handle (4) is pivoted on the linkage shaft (2), and the rear end of the handle (4) can be opened or closed at the right time in accordance with the effect of the lock (3) being snapped or detached. status. The door body (1) is mainly fixed on a door panel (not shown) of a box body (for example, an electric box or a power distribution box, etc.), and the two ends of the door button body (1) are respectively provided with a first The chamber (10) and the second chamber (11) respectively provide a accommodating linkage shaft (2) and a lock (3), and the door buckle body (1) is simultaneously provided with a self-positive (front) surface depression and communicates with the first a third chamber (12) of the chamber (10) and the second chamber (11) for receiving the handle (4); and a through hole (100) for the inner side of the first chamber (10) 'In order to extend the shaft (2) out of the first chamber (1〇) to join the tongue (5); at the outer end surface of the first chamber (10) to the periphery, the protrusion is formed in two The retaining edge of the diagonal position (101). The linkage shaft (2) is disposed in the first chamber (10) of the door body (1), and the linkage shaft (2) defines a pivoting section (20) and a shaft section (21) in the axial direction. And a fixed section (22). The pivoting section (20) has a radial opening for inserting the front end of the handle (4), and a pivot hole (2〇〇) is disposed adjacent to both sides of the opening for providing a positioning pin (201). Further, the front end of the handlebar (4) is pivotally connected; the shaft body section (21) is axially recessed with a receiving groove (210) communicating with the opening of the pivoting section (20); the fixing section (22) is worn a through hole (1〇〇) of the first chamber (10), the fixing portion (22) is adjacent to the outer diameter surface of the through hole (100), and is provided with a plurality of grooves (220) distributed at a predetermined circumferential angle. And the end of the fixed section (22) is formed into a section of a polygonal cross section, and a locking hole (221) is formed at the end (22) of the fixing section, thereby connecting the tongue piece (5) with 201241293. Wherein, in the accommodating groove (210) of the shaft body section (21), a buffering device (23) is disposed, the buffering device (23) comprising a spring cover (2 plus) and a spring in a preloaded state (231) The spring end of the spring (231) is abutted against the inner side of the receiving groove (21〇), and the tail end is supported on the inner side of the spring cover (230), so that the spring cover (23〇) can be timely protruded or It is compressed in the accommodating groove (210); and in the center of the spring cover (23 〇), an air hole (2300) is opened, and when the buffer device (23) is placed in the accommodating groove (210), the vent hole is permeable (23〇〇) Eliminate the vacuum formed by the internal airtightness, and make the spring (231) function more completely and smoothly, thereby improving the cushioning effect of the buffer device (23). The lock (3) is disposed in the second chamber (11) of the door body (1), and the lock (3) includes a lock body (3〇) and a lockable body (30) Stop (31). The lock body (3〇) is exposed on the front side of the door body q), and the opposite end of the lock body (30) is provided with an action portion (30〇) (in the embodiment, the action portion (300) It is a bump). The stopper (31) is located at the end of the action portion (300), and one end of the δhai load block (31) is provided with a latching portion (310), and the load block (31) is provided with a slot (311) The action portion (3〇〇) of the lock core body (30) extends to drive the block (31) to slide in the second chamber (η) and is fastened by the buckle portion (310). The handle (4) is positioned; the other end of the stopper (31) is provided with a retaining wall (312). Between the retaining wall (312) and the inner wall of the second chamber (11), a reset elastic member is disposed ( 32) After the supply of the stopper (31) is driven by the lock body (30), the elastic restoring force of the reset spring (32) can be used to push the load block (31) to reset. The handle of the case (4) is placed in the third chamber (12) of the door body (1), and the rear end of the handle (4) is located in the second chamber (11), and is formed to be blocked. The latching portion (31〇) of the block (31) corresponds to the latching groove (40), and the front end of the handlebar (4) is 201241293* is located in the valley chamber (10), and is formed with a pivoting portion (41). The pivoting portion (41) further has a pivot hole (410) penetrating the two sides thereof, and is pivotally connected to the linking shaft (7) by a positioning pin (2〇1); the pivoting portion (41) faces the first chamber (10) The inner side is formed into a flat portion (411), thereby resisting being provided in the interlocking buffer device (23). In addition, the tongue piece (5) is located at the bottom end of the linkage shaft (2), and the tongue piece (5) is provided with a spline groove (50) by means of a fixed section (22) of the linkage shaft (2). Between the tongue piece (5) and the linkage shaft (2), and the sleeve engine has a limit ring piece (51), the limit ring piece (51), '彖= has a convex part (51!), with its sleeve The groove (22〇) of the fixed section (22) is inserted, and then the tongue (5) and the limit ring piece (51) are sequentially passed through the fixing member (52). The locking hole (221) of the interlocking shaft (2) is locked to form an integrated state '俾 to prevent the tongue piece (5) from falling off from the linking shaft (2). Wherein, the outer edge of the limiting ring piece (51) is provided at a relative position (ie, 180 degrees apart) with an abutting portion (51〇) extending outwardly, and the abutting portion (51〇) can be used. The abutment of the outer edge (101) of the first chamber (1) is used to define the angle at which the linkage shaft (2) drives the tongue (5) to rotate. Look at the third and fourth figures again. The third figure also shows a schematic cross-sectional view of the preferred embodiment when it is closed. The fourth figure shows a schematic cross-sectional view of the preferred embodiment when it is opened. When the user wants to open a door panel (not shown), the lock (3) is driven first to rotate the action portion (3〇〇) from a click position to a release position to drive The stopper (31) is displaced, so that the latching portion (310) of the stopper (31) is disengaged from the latching groove (4〇) of the handle (4), so that the handle (4) is formed relative to the linkage shaft (2) The state of free pivoting. At this time, the cushioning device (23) of the 201241293 in the pivoting section (2) of the linkage shaft (2) is elastically returned to the spring of the preloaded state (the spring is back). , bar 4), until the cushioning device (23) and the flat portion of the handle (4) (called full _, so that the handle (4) can be read to the preset position. At this time, the user can hold the handle (4) to drive The tongue (5) is rotated so that the tongue (9) no longer abuts against the box _ 'the abutment portion (510) of the (four) position ring piece (51) resists the rim (dish) of the door body (1)' 4_ Pre-opening angle, the door panel of the box can be opened. According to this, a and ef, due to the elastic restoring force of the handle (the diaphragm (231) through the buffer device (23), the outer roof spring cover (23) 〇), the spring cover (230) is straightly outwardly abutted against the bottom edge of the flat portion (411) of the handle (4), and the handle (4) is tilted up to a preset position. 23) Relative to the positioning pin (201), the opponent's force arm (4) is smaller, and the cushioning device (23) can provide an indirect struts buffering function. The impact caused the battle (4) rapid bomb The phenomenon can make the operation movement more elegant and smooth, and can avoid the hand (the sentence may cause injury to the hand or cause hand discomfort due to rapid bouncing, and reduce the collision wear and derivative noise of related components. When I want to close the door panel of the cabinet, 'only need to push back the handle (4), then the reset arm (32) of the lock (3) can be pushed against the stop (31) to reset, and the load block The latching portion (31〇) of (31) re-fastens the latching groove (40) of the handle (4) to reclose the door panel of the cabinet. The above description is only a preferred embodiment of the present invention. The features of the present invention are not intended to limit the scope of the embodiments of the present invention, and equivalent variations made by those skilled in the art in accordance with the present invention, as well as modifications well known to those skilled in the art. BRIEF DESCRIPTION OF THE DRAWINGS [Brief Description of the Drawings] The first drawing is a perspective view of a preferred embodiment of the present invention. The second drawing is a three-dimensional assembly diagram of a preferred embodiment of the present invention. : A schematic cross-sectional view of a preferred embodiment of the present invention FIG. 4 is a schematic cross-sectional view showing the preferred embodiment of the present invention when it is opened. [Main component symbol description] 1 door buckle body; 10 first chamber 100 through hole; 101 retaining edge 11 second chamber; 12 third chamber 2 linkage shaft; 20 pivot joint, 200 pivot hole; 201 positioning pin; 21 shaft section; 210 receiving groove; 22 fixed section; 220 groove; 23 cushioning device 230 spring cover; 2300 air hole; 231 spring; 3 lock; 30 lock body; 300 action part; 31 stop; 310 holding part; 311 slot; 312 retaining wall; 201241293 32 reset spring; 40 buckle groove; 41 pivot portion 410 pivot hole; 411 plane portion 5 tongue; 50 spline groove 51 limit ring; 510 abutment portion 511 convex portion; 52 fixing member