M325412 八、新型說明： 【新型所屬之技術領域】 本新型疋有關於一種氣壓棒，特別是指一種藉由内部 氣體流動而可往復伸縮的氣壓棒。 【先前技術】 如圖1、2所示，為一種設有一氣壓棒u的椅具i，且 該椅具1還包含：一個可上下升降的椅墊12、一個間隔設 在椅墊12下方的椅腳13，以及-個自該椅腳13向上直立 延伸的中空安裝座14,該氣壓# η是設置在㈣裝座14 中且頂端連結該椅墊12以帶動椅墊12升降。 所述氣壓棒11包括一個頂端與該椅墊12連結的缸體 ill、一個自该缸體in向下伸出的活塞桿112，以及一個 没置在該缸體1Π中且頂端外露的控制閥U3，所述活塞桿 112之底端是向下穿過該安裝座14之一個安裝孔丨^，並藉 由個固定夾114來固定住，當該控制閥丨13受到下壓的力 里時，該缸體111内部的氣體流動而使該缸體111可以相對 該活塞杯112上下升降，藉由缸體lu帶動該椅墊12上下 移動而達到調整椅墊12高度的功能。 由於該椅具1之安裝座14的内部空間為圓形，而該氣 壓棒11之缸體111亦為圓形，因此，藉由該氣壓棒丨丨之設 置，使該椅墊12除了可以受缸體U1帶動而上下升降外， 還可以相對該安裝座14而在水平面上旋轉。雖然此種椅墊 12可旋轉的椅具1在使用上有其方便性，但是，每當椅墊 12旋轉後，使用者必須多花一個動作來將該椅墊12轉回原 M325412 來的位置，故使用上仍有待改善。 【新型内容j 因此’本新型之目的 復位的氣壓棒。 即在提供一 種轉動後可以 自動 於疋，本新型氣壓棒包含·一 空間的外管單元、具有—轴向貫通的安裝 間的内管單元、一活窠i _ 八有軋壓空 置。 $塞早^一作動單元，以及-回轉裝 Η。e T〜平田间哭伸出外營輩 並可相對該内管單元改變高度 友π 度的/舌塞桿，該活塞單元將續 氧壓空間界定出間隔的一第一处 β W „ 乐 工間邛與一弟二空間部。該 作動單元安裝在内管單 早凡中用於封閉或連通該等第一、 二空間部。 該回轉裝置包括-個連動地結合在該外管單元上的連 動轉t以及-個對應連動轉件地設置在該活塞桿周緣的 L轉單7〇所述回轉單％具有—環繞該活塞桿的彈性復位 χ及個對應$連動轉件地設置於連動轉件與彈性復 位件間的回轉件。 =田°亥外&單元文外力作用而帶動該連動轉件轉動時， =連動轉件推動該回轉件朝遠離連動轉件的方向移動並壓 二/彈14復位件’该彈性復位件蓄積—朝向該連動轉件的 、°°復位力並在外力消失時釋放其彈性復位力以驅使該 連動轉件回轉，進而帶動該外管單元回轉至原來的位置。 【實施方式】 M325412 有關本新型之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖3、4、5’本新型氣壓棒之較佳實施例是安裝在 一圖未示出的椅具上，該椅具包括一安裝座7，以及一藉由 該氣壓棒而設置在該安裝座7上的椅墊（圖未示），該安裝 座7包括一個界定出一軸道71〇的圍壁71，以及一個水平 連結在该圍壁71底緣並具有一貫孔721的底壁72，該氣壓 棒是用於調整椅墊高度，並可帶動椅墊相對該安裝座7旋 轉，所述氣壓棒包含··一外管單元2、一内管單元3、一活 塞單元4、一作動單元5,以及一回轉裝置6。 口亥外官單元2包括一第一管體21，以及一緊密貼合設 置在該第一管體21中的第二管體22，所述外管單元2是安 裝在該安裝座7之軸道710中且頂端與椅墊連結，並具有 一軸向貫通的安裝空間2〇。 忒内官單元3包括一固定地安裝在該安裝空間2〇中之 内苢座31、一固定地安裝在内管座31之下方與外管單元2 之底部間的第-密封件32,及_固线安裝在内管座31之 上方與外官單元2之頂部間的第二密封件33。該内管座3 i 具有與外官單元2相間隔地軸設在外管單元2中並具有 氣C工間314的内管311、一間隔形成在氣壓空間3 14外 圍一外s單元2間的通道312，及一固定安裝在該内管311 I、第一畨封件33間之控制閥313，該控制閥3丨3具有 一軸向貫通且往下連通至氣塵空間314之頂端的閥孔3^。 M325412 該通道312具有一形成在内管311與外管單元2間的直 段316、一由直立段316之頂端徑向往内貫穿控制閥33 的上通奴317,及一形成在直立段316之底端與第一密封件 32之頂面間且連通氣壓空間314的下通段318。當然，該 内官早7L 3更可以為其他構造設計，其構造及材質並不以 本實施例為限。 該活塞單元4是安裝在内管單元3中，且可相對於控 制閥313改變高度，並包括一穿過第一密封件32且往下伸 出外管單疋2底端與該安裝座7之貫孔721的活塞桿41、 固接在活塞桿41之頂端的活塞42，以及一設置在該活塞 才干41底端以將活塞桿42與該安裝座7固定住的夾持件u 。該活塞42是可與該内管單元3相對移動地氣密嵌置於該 内官311之内管面，並將氣壓空間314區隔成上下間隔之一 第一空間部341與一第二空間部342，所述第一、二空間部 341、342是分別灌注有氣體。 该作動單元5包括一可軸向移動地插伸在閥孔315中 的作動桿51，及一底端抵壓該作動桿51並向上穿出該第二 密=件33與外管單元2的推桿52，該推桿52是可受驅動 而帶動該作動桿51軸向移動。由於作動單元5非本新型改 良之重點，故不再詳細說明。 該回轉裝置6包括一個連動地螺鎖在該外管單元2底 =的連動轉件61，以及一設置在該連動轉件61下方的回轉 單元62,所述回轉單元62具有一環繞該活塞桿41而位於 連動轉件61與該安裝座7之底壁72間的彈性復位件62ι， M325412 以及-個連動地結合在該彈性復位件62i頂緣並可與連動 轉件61配合的回轉件622。 该連動轉件61包括一個朝向該回轉件622且上下傾斜 的第_推抵面611 ’該回轉件622是包括—個與該第一推抵 面6U相對應地斜向設置的第二推抵面⑶。所述第一推抵 面611具有一個第一高點612與一個第一低點613，該第二 推抵面623具有-個與第一高點612對應的第二高點似， 以及個與第-低點613對應的第二低點627。本實施例之 彈性復位件621是-個捲繞在活塞桿41周緣的彈菁，並包 ^一個位於底緣且固^設置在該安裝座7之底壁72上的固 疋。P 624，以及-個位於頂緣而與該回轉件622結合的連結 部 625。 參閱圖5、6,本新型用於調整高度時，當作動桿”位 在如圖5所不之-個封閉位置時，作動桿5 i封閉閥孔化 並使氣壓㈣314與通道312不連通，氣體無法流動，故 該氣壓棒之整體高度不變。當作動桿51被控制而往下移動 至如圖6所示之一個連通位置時，該氣壓空間314與通道 312經由該閥孔315連通，第一空間部341中的氣體經由通 道312往下流入第二空間冑342巾，以藉由氣體壓力頂推 活塞42，使得内管單元3連同作動單元5與外管單元2 一 起相對於活塞單元4向下移動，用以調整氣壓棒之整體高 度’並藉此來調整椅墊高度。 參閱圖5、7，當該椅墊與外管單元2如圖5所示沒有 相對轉動時，該回轉單元62是處於—個未㈣位置，該連 M325412 動轉件61之第一推抵面611與該回轉件622的第二推抵面 靠’且該第一高點612頂抵該第二高點626,該第 一低點613頂抵該第二低點627。 當該椅塾與外管單元2受到外力而相對該安裝座7在 水平面上轉動時（使用者坐在椅塾上並帶動椅塾轉動），設 置^該外管單U底端的連動轉件61亦跟著轉動，該傾斜M325412 VIII. New description: [New technical field] The new type relates to a gas pressure rod, in particular to a gas pressure rod which can reciprocate by internal gas flow. [Prior Art] As shown in FIG. 1 and 2, a chair i having a gas pressure bar u, and the chair 1 further includes: a seat cushion 12 that can be lifted up and down, and a space provided under the seat cushion 12 The leg 13 and a hollow mount 14 extending upward from the leg 13 are disposed in the (four) mount 14 and the top end is coupled to the seat cushion 12 to drive the seat cushion 12 up and down. The gas pressure bar 11 includes a cylinder ill whose top end is coupled to the seat cushion 12, a piston rod 112 projecting downward from the cylinder block, and a control valve not disposed in the cylinder block 1 and exposed at the top end. U3, the bottom end of the piston rod 112 is downwardly passed through a mounting hole of the mounting seat 14, and is fixed by a fixing clip 114 when the control valve 13 is subjected to a pressing force. The gas inside the cylinder 111 flows so that the cylinder 111 can be lifted up and down with respect to the piston cup 112, and the seat cushion 12 is moved up and down by the cylinder lu to achieve the function of adjusting the height of the seat cushion 12. Since the inner space of the mounting seat 14 of the chair set 1 is circular, and the cylinder 111 of the air pressure bar 11 is also circular, the seat cushion 12 can be affected by the setting of the air pressure bar. The cylinder U1 is driven up and down, and can also be rotated on the horizontal surface with respect to the mounting seat 14. Although the chair 1 for rotating the seat cushion 12 has its convenience in use, each time the seat cushion 12 is rotated, the user must take an extra action to turn the seat cushion 12 back to the position of the original M325412. Therefore, there is still room for improvement in use. [New content j] Therefore, the purpose of this new type is to reset the gas pressure bar. That is, after providing a rotation, the air pressure bar can automatically be used for the outer tube unit, the outer tube unit having a space, the inner tube unit having the axially inserted installation space, and the inner tube i _ eight having the rolling space. $ plug early ^ one actuating unit, and - swivel Η. e T~ Ping Tian crying out of the external generation and can change the height of the π degree / tongue plug relative to the inner tube unit, the piston unit defines the first oxygen pressure space of the interval β W „ Locus The first unit and the second space portion are installed in the inner tube to cover or connect the first and second space portions. The revolving device includes a linkage that is coupled to the outer tube unit in conjunction with each other. Turning t and a corresponding L-turn single 7 对应 at the periphery of the piston rod, the swivel single % has a resilient return 环绕 around the piston rod and a corresponding $ linked rotating member is disposed on the linked rotating member The rotating part between the elastic returning member and the elastic returning member. When the external force of the unit is used to drive the interlocking rotating member, the interlocking member pushes the rotating member to move away from the interlocking rotating member and presses the second/elastic The reset member 'the elastic return member accumulates|the resetting force toward the interlocking rotating member and releases the elastic restoring force when the external force disappears to drive the interlocking rotating member to rotate, thereby driving the outer tubular unit to rotate to the original position. [Embodiment] M325 The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of a preferred embodiment with reference to the drawings. Referring to Figures 3, 4, 5' The preferred embodiment is mounted on a chair (not shown), the chair includes a mounting base 7, and a seat cushion (not shown) disposed on the mounting seat 7 by the air pressure bar. The mount 7 includes a surrounding wall 71 defining a shaft 71 , and a bottom wall 72 horizontally joined to the bottom edge of the surrounding wall 71 and having a constant hole 721 for adjusting the height of the seat cushion. The seat cushion can be driven to rotate relative to the mounting seat 7. The air pressure bar comprises an outer tube unit 2, an inner tube unit 3, a piston unit 4, an actuating unit 5, and a rotating device 6. The official unit 2 includes a first tubular body 21 and a second tubular body 22 closely fitted in the first tubular body 21, the outer tubular unit 2 being mounted in the axle 710 of the mounting base 7. And the top end is connected with the seat cushion, and has an axially through installation space 2〇. The unit 3 includes an inner seat 31 fixedly mounted in the mounting space 2, a first sealing member 32 fixedly mounted between the inner tube base 31 and the bottom of the outer tube unit 2, and a _ fixing line a second seal 33 is mounted between the inner tube seat 31 and the top of the outer unit 2. The inner tube base 3i is axially spaced from the outer unit 2 and is disposed in the outer tube unit 2 and has a gas chamber The inner tube 311 of the 314 is formed with a channel 312 formed between the outer s unit 2 at the periphery of the air pressure space 314, and a control valve 313 fixedly mounted between the inner tube 311 and the first dam seal 33. The valve 3丨3 has a valve hole 3^ axially extending and communicating downwardly to the top end of the dust space 314. M325412 The passage 312 has a straight section 316 formed between the inner tube 311 and the outer tube unit 2, The top end of the upright section 316 extends radially inwardly through the upper passage 317 of the control valve 33, and a lower passage section 318 formed between the bottom end of the upright section 316 and the top surface of the first seal member 32 and communicating with the pneumatic space 314. Of course, the inner officer 7L 3 can be designed for other structures, and the structure and material are not limited to the embodiment. The piston unit 4 is mounted in the inner tube unit 3 and is changeable in height relative to the control valve 313, and includes a first end member 32 extending downwardly and extending downwardly from the bottom end of the outer tube unit 2 and the mounting seat 7. The piston rod 41 of the through hole 721, the piston 42 fixed to the top end of the piston rod 41, and a holding member u disposed at the bottom end of the piston rod 41 to fix the piston rod 42 and the mounting seat 7. The piston 42 is airtightly embedded in the inner tube surface of the inner 311 with respect to the inner tube unit 3, and the air pressure space 314 is partitioned into a first space portion 341 and a second space. In the portion 342, the first and second space portions 341 and 342 are respectively filled with a gas. The actuating unit 5 includes an actuating rod 51 axially movably inserted in the valve hole 315, and a bottom end pressing the actuating rod 51 and extending upwardly through the second dense element 33 and the outer tube unit 2 The push rod 52 is driven to drive the actuating rod 51 to move axially. Since the actuation unit 5 is not the focus of this new modification, it will not be described in detail. The slewing device 6 includes an interlocking member 61 that is screwed to the bottom of the outer tube unit 2, and a slewing unit 62 disposed below the interlocking member 61. The slewing unit 62 has a surrounding piston rod 41. An elastic returning member 62i, M325412 between the interlocking rotating member 61 and the bottom wall 72 of the mounting base 7 and a rotating member 622 coupled to the top edge of the elastic returning member 62i and engaging with the interlocking rotating member 61 . The interlocking member 61 includes a first pushing surface 611 that is inclined upward and downward toward the rotating member 622. The rotating member 622 includes a second pushing portion that is obliquely disposed corresponding to the first pushing surface 6U. Face (3). The first pushing surface 611 has a first high point 612 and a first low point 613, and the second pushing surface 623 has a second high point corresponding to the first high point 612, and a The second low point 627 corresponding to the first low point 613. The elastic returning member 621 of this embodiment is an elastic crest which is wound around the circumference of the piston rod 41, and is provided with a fixing member which is disposed at the bottom edge and which is fixed to the bottom wall 72 of the mounting base 7. P 624, and a connecting portion 625 located at the top edge and coupled to the rotating member 622. Referring to Figures 5 and 6, when the present invention is used to adjust the height, when the moving rod is positioned in a closed position as shown in Fig. 5, the actuating rod 5 i closes the valve hole and makes the air pressure (four) 314 not communicate with the passage 312. The gas cannot flow, so the overall height of the gas bar does not change. When the moving rod 51 is controlled to move down to a communication position as shown in FIG. 6, the air pressure space 314 communicates with the channel 312 via the valve hole 315. The gas in the first space portion 341 flows downward through the passage 312 into the second space 胄 342 to push the piston 42 by the gas pressure, so that the inner tube unit 3 together with the actuating unit 5 and the outer tube unit 2 are opposed to the piston unit. 4 moving downward to adjust the overall height of the gas pressure bar 'and thereby adjusting the height of the seat cushion. Referring to Figures 5 and 7, when the seat cushion and the outer tube unit 2 are not rotated relative to each other as shown in Figure 5, the rotation The unit 62 is in an un-four position, and the first pushing surface 611 of the connecting member M325412 is opposite to the second pushing surface of the rotating member 622 and the first high point 612 is offset against the second high point. At point 626, the first low point 613 abuts the second low point 627. When the chair is lowered When the outer tube unit 2 is subjected to an external force and rotates relative to the mounting seat 7 on a horizontal surface (the user sits on the chair sill and drives the chair to rotate), the interlocking member 61 of the bottom end of the outer tube single U is also rotated. tilt
推抵面611轉動時會推動第二推抵面623,直到該第 一低點613頂抵該第二高點咖（如圖&如此一來，該 回轉早π 62處於-壓縮位置，此時，該回轉件似被向下 推動4該彈性復位件621受到回轉件⑵下壓而壓縮， 因而蓄積一向上的彈性復位力。 當施加於外管單元的轉動外力消失時（使用者離開椅 墊）’該彈性復位件621向上釋放其彈性復位力，回轉件 622受到向上推動的力量後，經由其第二推抵面⑵推動該 連動轉件之第—推抵面611，進而使連動轉件61與外管 單元2回轉到原來如圖5所示的位置。 $以上說明可知’本新型氣壓棒除了具有一般可調整 整體高度之功能外’藉由該回轉裝置6的設置，更可以使 該外管單A 2相對該安裝座7轉純，在不需外力辅助的 情況下即自動復位，故確實達到本新型之目的。 惟以上所述者，僅為本新型之較佳實施例而已，當不 能以此限定本新型實施之範圍，即大凡依本新型中請:利 範圍及新型說明内容所作之簡單的等效變化與修飾^皆仍 屬本新型專利涵蓋之範圍内。 10 M325412 【圖式簡單說明】 ㈤疋一種習知具有一氣屢棒的椅具的側視圖； 圖2是日該氣麼棒與—安裝座的未完整的剖視圖； 圖3疋本新型氣屋棒之一較佳實施例與一安 體分解圖； 圖4是該較佳實施例與該安裝座的組合剖視圖； 回轉單元位於 圖5是-取自圖4的局部放大圖，同時顯示該 之一作動桿位於一封閉位置，該氣壓棒之 一未壓縮位置； 圖6是該較佳實施例之_局部組合剖視圖 該作動桿位於一連通位置；及 5、"、、示 圖7是該較佳實施例之一局部組合剖視圖， 一 該回轉單元位於一壓縮位置。 日、顯不 11 M325412When the pushing surface 611 rotates, the second pushing surface 623 is pushed until the first low point 613 abuts the second high point (as shown in the figure & the rotation is earlier than π 62 in the -compressed position, When the rotating member is pushed downward 4, the elastic returning member 621 is compressed by the rotating member (2), thereby accumulating an upward elastic restoring force. When the external force applied to the outer tube unit disappears (the user leaves the chair) The elastic restoring member 621 releases the elastic restoring force upward, and after the rotating member 622 receives the upward pushing force, the second pushing surface (2) pushes the first pushing surface 611 of the interlocking rotating member, thereby rotating the joint The member 61 and the outer tube unit 2 are swung to the position as shown in Fig. 5. From the above description, it can be seen that the 'the present pneumatic rod has the function of generally adjusting the overall height', and the setting of the revolving device 6 can make The outer tube single A 2 is purely reversible with respect to the mounting base 7 and automatically resets without external force assistance, so that the purpose of the present invention is achieved. However, the above description is only the preferred embodiment of the present invention. When not The scope of the new implementation, that is, the simple equivalent changes and modifications made by the present invention in the context of the new scope and the new description are still within the scope of this new patent. 10 M325412 [Simple diagram] (5)侧视图 a side view of a conventional chair with a versatile; Figure 2 is an incomplete cross-sectional view of the argon and the mounting seat; Figure 3 is a preferred embodiment of the novel gas house bar and an ampere Figure 4 is a cross-sectional view of the combination of the preferred embodiment and the mount; the swivel unit is located in Figure 5 - a partial enlarged view from Figure 4, showing that one of the actuating levers is in a closed position, the air pressure Figure 6 is a cross-sectional view of the preferred embodiment of the preferred embodiment of the actuating lever in a connected position; and 5, ", and Figure 7 is a partial combined cross-sectional view of the preferred embodiment, One of the revolving units is located at a compression position.
【主要元件符號說明】 2 ........ ••外管單元 5，·… ♦，…作動單元 20....... ••安裝空間 51…· ••…作動桿 21....... "第一管體 52,… .....推桿 22·，·*，·· -第二管體 6 •，… …··回轉裝置 3….·… ·*内管單元 61 ·… •…·連動轉件 31....... ••内管座 611 - •—苐一推抵面 311 •… …内管 612 - ……第一高點 312 .·… 、·通道 613 ·， .....第一低點 313 ••… ••控制閥 62… ……回轉單元 314 "… ••氣壓空間 621 * ……彈性復位件 315 •…， “閥孔 622 - ……回轉件 316 •♦… ••直立段 623 - *.....苐二推抵面 317 .•… "上通段 624 * ……固定部 318..... …下通段 625 - ……連結部 32....... "第一密封件 626 · ……第二高點 33....... ••第二密封件 627 - ……第二低點 341…… "第一空間部 7 •… •••…安裝座 342 …·· 、·第二空間部 71… ……圍壁 4…··… ••活塞單元 710 - ......軸道 1，.***♦* ••活塞桿 72… ......底壁 42....... -活塞 72卜 ......貫孑L 43....... 夾持件 12[Explanation of main component symbols] 2 ........ ••External pipe unit 5,·... ♦,...Actuation unit 20.......••Installation space 51...·••...acting lever 21 ....... "First pipe body 52, .....Pusher 22·,·*,·· -Second pipe body 6 •,...···Revolving device 3....·... ·*Inner tube unit 61 ·...•...·Linking swivel 31....... ••Inner socket 611 - •—苐 推 推 311 •... Inner tube 612 - ... first high point 312 .·... , ·Channel 613 ·, ..... First low point 313 ••... ••Control valve 62.........Slewing unit 314 "... ••Pneumatic space 621 * ......Elastic reset part 315 • ..., "Valve hole 622 - ... swivel 316 • ♦... • • Upright section 623 - *..... 苐 2 push surface 317 .•... "Upper section 624 * ......Fixed part 318.. ...lower section 625 - ... joint part 32....... "first seal 626 · ... second high point 33....... •• second seal 627 - ... the second low point 341... "First Space Department 7 •... •••... Mounting 342 ...···· Two space portions 71... ...... a wall 4...···•• Piston unit 710 - ... axle 1, 1, *** ♦ * • • piston rod 72... ...... bottom wall 42....... - Piston 72 Bu... 孑 L 43....... Clamping member 12