TWM528379U

TWM528379U - Air shaft

Info

Publication number: TWM528379U
Application number: TW105206034U
Authority: TW
Inventors: ze-lian Qiu
Original assignee: E Dan Ind Co Ltd
Priority date: 2016-04-28
Filing date: 2016-04-28
Publication date: 2016-09-11

Description

氣壓軸Air pressure shaft

本新型是有關於一種調整裝置，特別是指一種氣壓軸。The present invention relates to an adjusting device, and more particularly to a pneumatic shaft.

氣壓軸是一種常見於調整位置及提供緩衝效果的構件，其應用範圍相當廣泛，例如辦公室裡常見的可調整高度的座椅、桌面，便常採用氣壓軸來實施。The air pressure shaft is a common member for adjusting the position and providing a cushioning effect. Its application range is quite wide. For example, the adjustable height seat and table top commonly used in the office are often implemented by a pneumatic shaft.

習知的氣壓軸包含一氣壓套管、一插設該氣壓套管之軸桿，及一控制閥。該控制閥用以控制該氣壓套管與該軸桿是否能相對移動。當要增長該氣壓軸的總長度時，需先將該控制閥切換至一調整位置，以使該氣壓套管與該軸桿能相對移動，接著再將該氣壓套管與該軸桿朝彼此遠離的方向推移，反之，當要縮短該氣壓軸的總長度時，則是將該氣壓套管與該軸桿朝彼此靠近的方向推移。在調整好該氣壓軸至所需的總長度後，再將該控制閥切換至一固定位置，以使該氣壓套管與該軸桿無法相對移動，從而固定住該氣壓軸之總長度。The conventional pneumatic shaft includes a gas pressure sleeve, a shaft inserted into the gas pressure sleeve, and a control valve. The control valve is used to control whether the gas pressure sleeve and the shaft can move relative to each other. When the total length of the air shaft is to be increased, the control valve is first switched to an adjustment position to move the air pressure sleeve relative to the shaft, and then the air pressure sleeve and the shaft are facing each other. When moving away from the direction, conversely, when the total length of the air shaft is to be shortened, the air pressure sleeve and the shaft are moved toward each other. After adjusting the air pressure shaft to the required total length, the control valve is switched to a fixed position so that the air pressure sleeve and the shaft cannot move relative to each other, thereby fixing the total length of the air pressure shaft.

然而，習知的氣壓軸所能產生的位移調整量，受限於該軸桿所能於該氣壓套管中移動的行程，而該行程又被該氣壓套管的長度所限制住，故，若要取得較大的位移調整量，勢必要同時增加該氣壓套管及該軸桿的長度，但增長該氣壓套管卻也使得該氣壓軸所能收縮的最短長度變長了，因而造成實用上的侷限性。However, the amount of displacement adjustment that can be generated by a conventional pneumatic shaft is limited by the stroke that the shaft can move in the gas pressure sleeve, and the stroke is again limited by the length of the gas pressure sleeve. In order to obtain a large displacement adjustment, it is necessary to increase the length of the gas pressure sleeve and the shaft at the same time, but increasing the gas pressure sleeve also makes the shortest length of the gas pressure shaft contraction longer, thus resulting in practical use. Limitations on the subject.

因此，本新型之目的，即在提供一種擴展伸縮範圍的氣壓軸。Therefore, the object of the present invention is to provide a pneumatic shaft that expands the range of expansion and contraction.

於是，本新型氣壓軸包含一沿一軸線延伸之下管件、一沿該軸線可移動地穿設該下管件之氣壓管組，及一連接於該下管件及該氣壓管組間的位移調整單元，該氣壓管組包括一連接於該位移調整單元的軸桿，及一套設該軸桿之氣壓套管，該氣壓套管可沿該軸線相對該軸桿往復移動且可移動之總量為一第一行程，該位移調整單元可連動該氣壓管組沿該軸線相對該下管件往復移動且可移動之總量為一第二行程。Therefore, the present pneumatic air shaft includes a pipe member extending along an axis, a pneumatic pipe group movably passing the lower pipe member along the axis, and a displacement adjusting unit connected between the lower pipe member and the pneumatic pipe group The air pressure tube set includes a shaft connected to the displacement adjusting unit, and a set of air pressure sleeves disposed on the shaft, the air pressure sleeve is reciprocable relative to the shaft along the axis, and the total amount of movement is In a first stroke, the displacement adjusting unit can interlock the pneumatic tube group to reciprocate relative to the lower tube along the axis and the total amount of movement is a second stroke.

本新型之功效在於：藉由該位移調整單元提供該第二行程的位移調整量，而能進一步擴展可伸縮的範圍。更詳細地說，對比於習知單一伸縮行程的氣壓軸而言，本新型由於增設了該第二行程，而能比習知具有相同最短收縮長度的氣壓軸伸得更長，或，能比習知具有相同最長伸展長度的氣壓軸縮得更短，故能達到擴展伸縮範圍的目的。The effect of the present invention is that the displacement adjustment unit can provide the displacement adjustment amount of the second stroke, and the scalable range can be further expanded. In more detail, compared with the pneumatic shaft of the conventional single telescopic stroke, the present invention can extend the air shaft more than the conventional shortest contraction length by adding the second stroke, or can be compared. It is known that the air pressure shaft having the same longest extension length is shortened, so that the expansion and contraction range can be achieved.

參閱圖1至圖3，本新型氣壓軸之一實施例，包含一下管件1、一氣壓管組2，及一連接於該下管件1及該氣壓管組2間之位移調整單元3。Referring to FIG. 1 to FIG. 3, an embodiment of the present pneumatic air shaft includes a lower pipe member 1, a pneumatic pipe group 2, and a displacement adjusting unit 3 connected between the lower pipe member 1 and the pneumatic pipe group 2.

該下管件1沿一軸線L延伸。The lower tubular member 1 extends along an axis L.

該氣壓管組2沿該軸線L可移動地穿設該下管件1，且包括一連接於該位移調整單元3的軸桿21，及一套設該軸桿21之氣壓套管22，該氣壓套管22可沿該軸線L相對該軸桿21往復移動且可移動之總量為一第一行程，且該氣壓套管22的頂端適用於頂抵或連接於一待調整高度的物件，例如坐墊、工作桌面、機台台面…等，而能讓該物件的高度隨該氣壓套管22之移動而受調整。該軸桿21與該氣壓套管22兩者間的支撐係由該氣壓套管22內部的氣壓所提供，其運作為此技術領域中具有通常知識者所熟知，亦非本新型技術之特徵，所以便不再贅述。The air tube group 2 movably penetrates the lower tube member 1 along the axis L, and includes a shaft 21 connected to the displacement adjusting unit 3, and a set of air pressure sleeve 22 provided with the shaft 21, the air pressure The sleeve 22 is reciprocable relative to the shaft 21 along the axis L and the total amount of movement is a first stroke, and the top end of the air pressure sleeve 22 is adapted to be abutted or connected to an object to be adjusted in height, for example The seat cushion, the work table, the table top, etc., allow the height of the article to be adjusted as the pneumatic sleeve 22 moves. The support between the shaft 21 and the gas pressure sleeve 22 is provided by the gas pressure inside the gas pressure sleeve 22, the operation of which is well known to those of ordinary skill in the art and is not a feature of the present technology. So I won't go into details.

該位移調整單元3可連動該氣壓管組2沿該軸線L相對該下管件1往復移動且可移動之總量為一第二行程。該位移調整單元3包括一套設該氣壓套管22之外螺套組31、一套設該外螺套組31之中管件32，及一塞設固定於該下管件1內之內螺套33。The displacement adjusting unit 3 can interlock the pneumatic tube group 2 to reciprocate along the axis L relative to the lower tube member 1 and the total amount of movement is a second stroke. The displacement adjusting unit 3 includes a set of screw sleeves 31 disposed outside the gas pressure sleeve 22, a tube member 32 disposed in the outer sleeve group 31, and an inner threaded sleeve fixed to the lower tube member 1 33.

該外螺套組31具有一內管件311、一外螺套312，及一形成於該外螺套312之外周面之外螺紋段313。該內管件311為剛性材質，如金屬，且該軸桿21之底端連接於該內管件311之底端。該外螺套312是以高分子材料射出成形於該內管件311之外周面。該外螺套組31可相對該內螺套33轉動並帶動該氣壓管組2沿該軸線L相對該下管件1往復移動。The outer threaded set 31 has an inner tubular member 311, an outer threaded sleeve 312, and a threaded section 313 formed on the outer peripheral surface of the outer threaded sleeve 312. The inner tube member 311 is made of a rigid material, such as metal, and the bottom end of the shaft 21 is connected to the bottom end of the inner tube member 311. The outer nut 312 is injection molded on the outer peripheral surface of the inner tube member 311 by a polymer material. The outer threaded sleeve 31 is rotatable relative to the inner threaded sleeve 33 and drives the pneumatic tube set 2 to reciprocate relative to the lower tubular member 1 along the axis L.

該中管件32套設該外螺套組31，且該中管件32之內周面與該外螺紋段313沿徑向相間隔。該中管件32之內徑大於該下管件1之外徑，以於轉動該中管件32並帶動該氣壓管組2沿該軸線L相對該下管件1移動時，該中管件32可供該下管件1穿設入。該中管件32及該外螺套組31之頂端部分別形成有相對應的一第一穿孔321及一第二穿孔314，用以供一扳動件插設入並卡固該中管件32及該外螺套組31。其中，該第二穿孔314係由該外螺套312頂端部之外表面朝內鑽設入該內管件311。The middle tube member 32 is sleeved with the outer threaded sleeve set 31, and the inner peripheral surface of the middle tube member 32 is radially spaced from the outer threaded portion 313. The inner tube member 32 has an inner diameter larger than the outer diameter of the lower tube member 1, so that when the middle tube member 32 is rotated and the pneumatic tube group 2 is moved along the axis L relative to the lower tube member 1, the middle tube member 32 is available for the lower portion. The pipe member 1 is inserted. A first through hole 321 and a second through hole 314 are formed in the top end portion of the outer tube member 32 and the outer threaded portion 31 for inserting and clamping the middle tube member 32 and The outer threaded set 31. The second through hole 314 is bored inwardly from the outer surface of the top end portion of the outer threaded sleeve 312 into the inner tubular member 311.

該內螺套33具有一塞固於該下管件1之頂端部的塞固段331、一連接該塞固段331之頂端的擋緣332，及一形成於該內螺套33之內周面並配合於該外螺紋段313之內螺紋段333。該擋緣332靠抵於該下管件1之頂端緣，且該擋緣332之外徑實質上相同於該下管件1之外徑，能讓組設好的兩者具有平滑而不割手的交界處。於本實施例中，該外螺紋段313的長度大於該內螺紋段333的長度，故，該氣壓管組2相對該下管件1所能產生的最大位移，即該第二行程，受限且不大於該外螺紋段313的長度，但也可以變形為該內螺紋段333的長度大於該外螺紋段313的長度，而使該第二行程受限且不大於該內螺紋段333的長度。The inner threaded sleeve 33 has a retaining portion 331 fixed to the top end portion of the lower tubular member 1, a retaining edge 332 connecting the top end of the retaining portion 331, and an inner peripheral surface formed on the inner threaded sleeve 33. And fit into the inner thread segment 333 of the outer thread segment 313. The retaining edge 332 abuts against the top end edge of the lower tubular member 1, and the outer diameter of the retaining edge 332 is substantially the same as the outer diameter of the lower tubular member 1, so that the assembled two are smooth without cutting the hand. Junction. In this embodiment, the length of the external thread segment 313 is greater than the length of the internal thread segment 333, so the maximum displacement that the pneumatic tube set 2 can produce relative to the lower tubular member 1, that is, the second stroke, is limited. Not greater than the length of the externally threaded section 313, but may be modified such that the length of the internally threaded section 333 is greater than the length of the externally threaded section 313 such that the second stroke is limited and not greater than the length of the internally threaded section 333.

參閱圖3至圖5，分別示意本實施例伸縮於不同的長度。如圖3所示，該位移調整單元3連動該氣壓管組2而相對該下管件1沿該軸向L位移至最短的位置，且該氣壓管組2之氣壓套管22亦相對該內管件311位移至最短的位置，從而使本實施例位於一總長度最短的收縮狀態。如圖4所示，該位移調整單元3與該氣壓管組2相對該下管件1的位置維持不變，而將該氣壓管組2之氣壓套管22相對該內管件311拉伸至最長的位置，從而使本實施例的總長度增長了該第一行程。如圖5所示，該位移調整單元3連動該氣壓管組2而相對該下管件1沿該軸向L位移至最長的位置，且該氣壓管組2之氣壓套管22相對該內管件311的位置維持不變，從而使本實施例位於一總長度最長的伸展狀態，且該伸展狀態較該收縮狀態的長度增長量為該第一行程與該第二行程的加總。Referring to Figures 3 to 5, the embodiment is shown to be stretched to different lengths. As shown in FIG. 3, the displacement adjusting unit 3 interlocks the pneumatic tube group 2 and is displaced relative to the lower tube member 1 along the axial direction L to the shortest position, and the air pressure tube 22 of the air tube group 2 is also opposite to the inner tube member. The 311 is displaced to the shortest position so that the present embodiment is in a contracted state in which the total length is the shortest. As shown in FIG. 4, the position of the displacement adjusting unit 3 and the air tube group 2 with respect to the lower tube member 1 is maintained, and the air pressure tube 22 of the air tube group 2 is stretched to the longest position with respect to the inner tube member 311. The position such that the overall length of the embodiment is increased by the first stroke. As shown in FIG. 5, the displacement adjusting unit 3 interlocks the pneumatic tube set 2 to be displaced along the axial direction L to the longest position relative to the lower tubular member 1, and the pneumatic sleeve 22 of the pneumatic tube set 2 is opposite to the inner tubular member 311. The position remains unchanged such that the present embodiment is in an extended state with the longest total length, and the length of the extended state compared to the contracted state is the sum of the first stroke and the second stroke.

經由以上的說明，上述實施例具有以下優點，故確實能達成本新型之目的：Through the above description, the above embodiment has the following advantages, so that the purpose of the present invention can be achieved:

一、藉由該位移調整單元3提供該第二行程的位移調整量，而能進一步擴展整支氣壓軸的可伸縮範圍。1. The displacement adjustment unit 3 provides the displacement adjustment amount of the second stroke, and the extension range of the entire pneumatic shaft can be further expanded.

二、藉由該外螺套312是以高分子材料射出成形於該內管件311之外周面，而能方便地形成該外螺紋段313，並透過剛性材質的該內管件311提供整體的強度，而使該外螺套組31既堅固又易於製作，相較於直接用一整支金屬圓柱體來加工產出該外螺套組31的做法，能節省加工成本並減少材料的浪費。2. The outer threaded sleeve 312 is formed by molding a polymer material on the outer circumferential surface of the inner tubular member 311, so that the outer threaded portion 313 can be conveniently formed, and the inner tubular member 311 of the rigid material is provided with overall strength. The outer threaded set 31 is both strong and easy to manufacture. Compared with directly using a whole metal cylinder to process the outer threaded set 31, the processing cost and the waste of materials can be saved.

三、藉由該中管件32套設該外螺套組31而覆蓋住該外螺紋段313，能避免灰塵進入而影響螺轉時的順暢性，且該中管件32亦提供了更大的面積，有助於螺轉時的抓握、施力。3. The outer threaded section 313 is covered by the inner tubular member 32 to cover the outer threaded section 313, so that the entry of dust can be avoided to affect the smoothness of the screwing, and the middle tubular member 32 also provides a larger area. It helps to grasp and apply force when the screw is turned.

四、藉由該中管件32及該外螺套組31之頂端部分別形成有能配合該扳動件插設入的該第一穿孔321及該第二穿孔314，能利用該扳動件來讓螺轉更為省力。4. The first through hole 321 and the second through hole 314 which can be inserted into the trigger member are respectively formed by the middle pipe member 32 and the top end portion of the outer screw sleeve 31, and the trigger member can be used Make the screw turn more effortless.

惟以上所述者，僅為本新型之實施例而已，當不能以此限定本新型實施之範圍，凡是依本新型申請專利範圍及專利說明書內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內。However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

1‧‧‧下管件
2‧‧‧氣壓管組
21‧‧‧軸桿
22‧‧‧氣壓套管
3‧‧‧位移調整單元
31‧‧‧外螺套組
311‧‧‧內管件
312‧‧‧外螺套
313‧‧‧外螺紋段
314‧‧‧第二穿孔
32‧‧‧中管件
321‧‧‧第一穿孔
33‧‧‧內螺套
331‧‧‧塞固段
332‧‧‧擋緣
333‧‧‧內螺紋段
L‧‧‧軸線1‧‧‧ Lower pipe fittings
2‧‧‧Pneumatic tube group
21‧‧‧ shaft
22‧‧‧Pneumatic casing
3‧‧‧Displacement adjustment unit
31‧‧‧External screw set
311‧‧‧Inner pipe fittings
312‧‧‧ External threaded sleeve
313‧‧‧External thread section
314‧‧‧Second perforation
32‧‧‧ middle pipe fittings
321‧‧‧First perforation
33‧‧‧Inner thread
331‧‧‧塞固段
332‧‧ ‧ rim
333‧‧‧Threaded section
L‧‧‧ axis

本新型之其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中：圖1是一立體組合圖，說明本新型氣壓軸的一實施例；圖2是該實施例之一立體分解圖；圖3是沿圖1中之線III-III之一剖視圖，說明該實施例位於一總長度最短的收縮狀態；圖4是類似於圖3的一剖視圖，說明拉伸該實施例之一氣壓管組以使該實施例之總長度較該收縮狀態增加一第一行程；及圖5是類似於圖3的一剖視圖，說明螺升該氣壓管組以使該實施例位於一總長度最長的伸展狀態。Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view of an embodiment of the present invention; FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1, illustrating the embodiment in a contracted state in which the total length is the shortest; FIG. 4 is a cross-sectional view similar to FIG. 3, illustrating the stretching of the embodiment. a pneumatic tube set such that the total length of the embodiment is increased by a first stroke from the contracted state; and FIG. 5 is a cross-sectional view similar to FIG. 3 illustrating the screwing of the pneumatic tube set such that the embodiment is located at a total length The longest stretched state.

1‧‧‧下管件 1‧‧‧ Lower pipe fittings

2‧‧‧氣壓管組 2‧‧‧Pneumatic tube group

21‧‧‧軸桿 21‧‧‧ shaft

22‧‧‧氣壓套管 22‧‧‧Pneumatic casing

31‧‧‧外螺套組 31‧‧‧External screw set

311‧‧‧內管件 311‧‧‧Inner pipe fittings

312‧‧‧外螺套 312‧‧‧ External threaded sleeve

313‧‧‧外螺紋段 313‧‧‧External thread section

314‧‧‧第二穿孔 314‧‧‧Second perforation

32‧‧‧中管件 32‧‧‧ middle pipe fittings

321‧‧‧第一穿孔 321‧‧‧First perforation

33‧‧‧內螺套 33‧‧‧Inner thread

331‧‧‧塞固段 331‧‧‧塞固段

332‧‧‧擋緣 332‧‧ ‧ rim

333‧‧‧內螺紋段 333‧‧‧Threaded section

L‧‧‧軸線 L‧‧‧ axis

Claims

一種氣壓軸，包含：一沿一軸線延伸之下管件、一沿該軸線可移動地穿設該下管件之氣壓管組，及一連接於該下管件及該氣壓管組間的位移調整單元，該氣壓管組包括一連接於該位移調整單元的軸桿，及一套設該軸桿之氣壓套管，該氣壓套管可沿該軸線相對該軸桿往復移動且可移動之總量為一第一行程，該位移調整單元可連動該氣壓管組沿該軸線相對該下管件往復移動且可移動之總量為一第二行程。A pneumatic shaft comprising: a tubular member extending along an axis, a pneumatic tube group movably passing the lower tubular member along the axis, and a displacement adjusting unit coupled between the lower tubular member and the pneumatic tube group, The pneumatic tube set includes a shaft connected to the displacement adjusting unit, and a set of pneumatic sleeves disposed on the shaft, the pneumatic sleeve is reciprocable relative to the shaft along the axis and the total amount of movement is one In the first stroke, the displacement adjusting unit can interlock the pneumatic tube group to reciprocate relative to the lower tube along the axis and the total amount of movement is a second stroke.

如請求項1所述的氣壓軸，其中，該位移調整單元包括一套設該氣壓套管之外螺套組，及一塞固於該下管件內之內螺套，該外螺套組之外周面形成有一外螺紋段，該內螺套之內周面形成有一配合於該外螺紋段之內螺紋段，該外螺套組可相對該內螺套轉動並帶動該氣壓管組沿該軸線相對該下管件往復移動。The air pressure shaft according to claim 1, wherein the displacement adjusting unit comprises a set of screw sleeves disposed outside the air pressure sleeve, and an inner threaded sleeve fixed in the lower tube member, the outer threaded sleeve group An outer threaded surface is formed on the outer peripheral surface, and an inner threaded surface of the inner threaded sleeve is formed with an inner threaded portion that is fitted to the outer threaded portion, and the outer threaded sleeve group is rotatable relative to the inner threaded sleeve and drives the air pressure tube group along the axis Reciprocating relative to the lower tubular member.

如請求項2所述的氣壓軸，其中，該第二行程不大於該外螺紋段及該內螺紋段中之較長一者的長度。The pneumatic shaft of claim 2, wherein the second stroke is no greater than a length of the longer one of the outer thread segment and the inner thread segment.

如請求項2所述的氣壓軸，其中，該內螺套具有一塞固於該下管件之頂端部的塞固段，及一連接該塞固段之頂端的擋緣，該擋緣靠抵於該下管件之頂端緣，且該擋緣之外徑實質上相同於該下管件之外徑。The pneumatic shaft of claim 2, wherein the inner nut has a plug portion that is fastened to a top end portion of the lower tube member, and a retaining edge that connects the top end of the plug portion, the retaining edge abuts At the top edge of the lower tubular member, and the outer diameter of the retaining flange is substantially the same as the outer diameter of the lower tubular member.

如請求項2所述的氣壓軸，其中，該外螺套組具有一內管件，及一外螺套，該外螺套是以高分子材料射出成形於該內管件之外周面，該外螺紋段形成於該外螺套之外周面。The pneumatic shaft of claim 2, wherein the outer threaded set has an inner tubular member and an outer threaded sleeve, and the outer threaded sleeve is injection molded from a polymer material to the outer circumferential surface of the inner tubular member, the external thread The segment is formed on the outer peripheral surface of the outer nut.

如請求項2所述的氣壓軸，其中，該位移調整單元還包括一中管件，該中管件套設於該外螺套組，且該中管件之內周面與該外螺紋段沿徑向相間隔。The air pressure shaft of claim 2, wherein the displacement adjusting unit further comprises a middle tubular member, the middle tubular member is sleeved on the outer threaded sleeve set, and the inner circumferential surface of the middle tubular member and the outer threaded portion are radially Interval.

如請求項6所述的氣壓軸，其中，該中管件之內徑大於該下管件之外徑，以於轉動該中管件並帶動該氣壓管組沿該軸線相對該下管件移動時，該中管件可供該下管件穿設入。The pneumatic shaft of claim 6, wherein the inner diameter of the middle tubular member is larger than the outer diameter of the lower tubular member, so as to rotate the middle tubular member and drive the pneumatic tube group to move along the axis relative to the lower tubular member, A tubular member is provided for the lower tubular member to be inserted.

如請求項6所述的氣壓軸，其中，該中管件及該外螺套組之頂端部分別形成有相對應的一第一穿孔及一第二穿孔，用以供一扳動件插設入並卡固該中管件及該外螺套組。The air pressure shaft according to claim 6, wherein the middle tube member and the top end portion of the outer threaded sleeve group are respectively formed with a corresponding first through hole and a second through hole for inserting a trigger member And fixing the middle pipe member and the outer screw set.