M3 3 0403 八、新剞說明：_^ ^^^ 【新型所屬之技術領域】 本創作係有關一種可調高低之伸縮腳架，尤指_種__ 内管一角度使與外管解鎖，等調整到所要之長度後， 嵌套在中間之定位桿固定，其除内外管之支撐外，該定 同時亦猶如建築物内的的鋼筋結構，確保腳架整體強度而$ 承重。 【先前技術】 按，習用之桌椅大都設計成固定的高度，而無法調整， 例如學校的課桌椅即是如此，所以孩童受教育階段，由 椅高度與實際使用者的身高無法配合，而導致閱讀、書寫# 式的不正確，進而造成孩童骨骼發育的不正常，應予重視。 次按，隨著休閒旅遊的盛行，利用假日開著休旅車到大 自然用餐、聚會之活動愈來愈多。惟，到戶外去必須具備桌 椅，而野外之地面並非平坦，且無法各支桌（椅）腳單獨調整 高度，以致造成桌子或椅子擺不平，為其缺失。 另按，第一、二圖所示係公告第332403號專利之結構 示意圖，其桌（椅）腳（80)係由一内管（81)及外管（82)所組 成，外管（82)上並設有排列之定位孔（83)，而内管（81)則放 置一彈片（84)，並於彈片（84)端部連接一卡柱（85)，藉由調 整卡柱（85)到達預定之定位孔（83)而固定桌（椅）腳（80)之高 度。 惟查’上揭前案雖可達到調整桌（椅）腳高低之功能，但 其調整時須由χ方向用手指按壓該卡柱（85)使其内縮，由於 M330403 在Y方向有重力，所以卡柱（85)並不好壓，如稍不小心則手 指易受傷。更重要的是，該卡柱（85)與該定位孔（83)係形成 一剪力狀態，所以桌面（7 0 )不可承擔太大的重力，否則將無 法支撐。是故，此類型調整結構不僅操作不便，且強度仍嫌 不足，即該定位孔（83)間距過大，無法微調，且管壁打洞會 破壞強度及美觀，因此整體而言，仍有諸多缺失。 此外，市售很多拖把或掃把的管體係可以調整長度的， 但其主要係利用内、外管間的偏心體方式達到卡緊定位功 能。惟查，此種偏心卡緊方式之支撐力不足，所以並不適用 於桌（椅）腳。 有鑑於此，本創作人仍針對上述缺失及問題點加以研 究，並提出改善設計。 【新型内容】 緣是，本創作之主要目的，係在提供一種可調高低之伸 縮腳架，其具有調整方便快速，且其支撐強度佳，可承受桌 椅上之重力功效增進。 本創作之再一目的，則在提供一種可調高低之伸縮腳 架，其係每一支伸縮腳架皆可單獨調整以配合四個端底之不 平地面，使得桌椅面始終保持水平之功效者。 為達上述目的，本創作所採用之技術手段包含： 一外管，其上端具備一結合體，用以固定在一本體的底 面； 一定位桿，其頂部係固定在該結合體底面，使其位於該 外管之中心，且該定位桿至少一側設有排列狀凸齒；以及 一内管，其上端管口内固設一定位套，該定位套之中間 M330403 穿孔係配合該定位桿之型體所設製而成，其穿孔周緣至少一 供^設有凸齒之縱向槽，且該縱向槽相鄰邊，設有 可旋入該凸齒定位之橫向槽，俾使内管調整到預定長度後旋 轉一角度即可使該内、外管結合固定之型態。 【實施方式】 首先，請參閱第三圖〜第六圖所示，本創作一較佳實施 例包含有· 一外管（10)，其上端具備一結合體（11)，其可藉由一諸 如：螺絲、釘子等之固定元件（12)加以固定在一本體（70)的 底面。 一定位桿（20)，其大致與該外管（10)等長或略短一點， 其頂部係固定在該結合體（11)底面，使其位於該外管（10)之 中心，且該定位桿（20)至少一侧設有排列狀凸齒（21)，本實 施例係左右兩侧皆設有對稱平行之凸齒（21)’但不限定於 此，亦即單獨一側亦可實施，惟兩侧同時有凸齒（21)則較佳。 一内管（30)，其上端管口内固設一定位套（40) ’該定位 套（40)之中間穿孔係配合該定位桿（20)之型體所設製而成， 其穿孔周緣至少一側邊設有可通過該凸齒（21)之縱向槽 (41)，本實施例中係配合左、右凸齒（21)而設有二個左、右 之縱向槽（41)，但不限定於此。且該縱向槽（41)相鄰邊，設 有可供該凸齒（21)旋轉篏入定位之橫向槽（43)，本實施例係 配合二排凸齒（21)，所以具有前、後兩面橫向槽（42)，俾使 内管（30)調整到預定長度後旋轉一角度即可使該内、外管 (30)、（10)相互結合固定。 又，該定位桿（2〇)底部藉由一螺絲（51)鎖定一外徑小於 M330403 或等於該内管（30)内徑之圓型導塊（50)，該導塊（50)之功能 係可使内管（30)在外管（10)内伸縮時，定位桿（2〇)不會偏 移，並可作為該定位套（40)下始點之定位件，亦即可防止内 管（30)脫離外管（10)。 至於，該内管（30)底部可套接有一橡膠墊（6〇)，具有防 滑作用，但不限定於此。 請參閱第五圖及第五圖（A)、（B)所示，其係顯示本創作 之内管（30)尚未與外管（10)結合，而呈現可上下調整長度之 樣態，亦即該定位套（40)之縱向槽（41)係與該凸齒（21)同一 方向，因此該内管（30)可自由地上下位移。接著，如内管（3〇) 調整預定伸出長度時，係如第六圖及第六圖（A)、（B)所示， 方疋轉该内管（3 0 ) —角度（本實施例為逆時針旋轉約g 〇度），則 該定位套（40)之橫向槽（42)即可嵌入該凸齒（21)而相互結合 固定。再者，為使該橫向槽（42)可順利嵌套，其嵌入端係設 成擴張導角（44)之型態，而其尾端則具有砥止面（43)，如此， 橫向槽（42)順利到達預定角度後，即可利祕止面⑽頂靠 凸齒（21)而不會超過嵌套位置，所以使用者非常方便，僅要 用力旋轉到底即可；是故’本創作較之f用之桌（椅）腳的調 整方法，更方便及人性化，且其利較位桿⑽之凸齒⑻ 與橫向槽（42)的結合方式’使本創作其有極佳強度，使得桌 (椅）面本體⑽可承受人體絲品的重力，是故，確具實用 性及安全性。 ‘上所述，本創作所揭示之構造，為昔所無，且確能達 到功效之增進’並具可供產業利祕，完全符合新型專利要 件，祈請貴審查委員核賜專利，以勵創新，無任德感。 M330403 惟，上述所揭露之圖式、說明，僅為本創作之較佳實施 例，大凡熟悉此項技藝人士，依本案精神範_所作之修飾或 等效變化，仍應包括在本案申請專利範圍内。 M330403 —【圖式I單說rnj_______ _____________________________________________—______________________________________ 第一圖係習用一種桌椅腳之立體圖。 第二圖係習用一種桌椅腳之剖示圖。 第三圖係本創作可行實施例分解圖。 第四圖係本創作可行實施例剖示圖。 第五圖係本創作呈解開調整長度之狀態示意圖。 第五圖（A)係第五圖中5A-5A斷面剖示圖。 第五圖（B)係第五圖（A)中5B-5B斷面剖示圖。 第六圖係本創作呈内外管嵌套結合之狀態示意圖。 第六圖（A)係第六圖中6A-6A斷面剖示圖。 第六圖（B)係第六圖（A)中6B-6B斷面剖示圖。 【主要元件符號說明】 (10) 外管 (11) 結合體 (12) 固定元件 (20) 定位桿 (21) 凸齒 (30)内管 (40) 定位套 (41) 縱向槽 (42) 橫向槽 (50) 導塊 (51) 螺絲 (60)橡膠墊 (70)本體 -10-M3 3 0403 八, 新剞 Description: _^ ^^^ [New technical field] This creation is related to an adjustable height telescopic tripod, especially _ __ inner tube at an angle to unlock the outer tube, After adjusting to the desired length, the positioning rods nested in the middle are fixed. In addition to the support of the inner and outer tubes, the setting is also like the steel structure in the building, ensuring the overall strength of the tripod and bearing. [Prior Art] According to the conventional table and chair, most of them are designed to have a fixed height and cannot be adjusted. For example, the school desk and chair are the same, so the height of the chair cannot be matched with the height of the actual user when the child is in the education stage. It leads to the incorrect reading and writing, which leads to the abnormal development of children's bones and should be taken seriously. With the press, with the prevalence of leisure travel, there are more and more activities to open the RV to the natural dining and gatherings. However, it is necessary to have a table and chair when going outdoors, and the ground in the field is not flat, and the height of each table (chair) can not be adjusted independently, so that the table or chair is not flat, and it is missing. According to the first and second figures, the structure of the patent No. 332403 is disclosed. The table (chair) foot (80) is composed of an inner tube (81) and an outer tube (82), and the outer tube (82). The positioning hole (83) is arranged on the upper side, and a spring piece (84) is placed on the inner tube (81), and a post (85) is connected to the end of the elastic piece (84) by adjusting the post (85) The height of the table (chair) foot (80) is fixed by reaching a predetermined positioning hole (83). However, the investigation of the previous case can achieve the function of adjusting the height of the table (chair). However, the adjustment must be made by pressing the post (85) with the finger in the direction of the squat to make it retract. Since the M330403 has gravity in the Y direction, Therefore, the post (85) is not well pressed, and if it is not careful, the finger is easily injured. More importantly, the post (85) and the positioning hole (83) form a shearing state, so the table top (70) cannot bear too much gravity, otherwise it will not be supported. Therefore, this type of adjustment structure is not only inconvenient to operate, but the strength is still insufficient. That is, the spacing of the positioning holes (83) is too large to be fine-tuned, and the hole in the pipe wall will destroy the strength and the appearance, so overall there are still many defects. . In addition, the pipe system of many mops or brooms can be adjusted in length, but it mainly uses the eccentric body between the inner and outer tubes to achieve the clamping positioning function. However, it is checked that the support of such an eccentric clamping method is insufficient, so it does not apply to the table (chair) foot. In view of this, the author still studies the above-mentioned shortcomings and problems, and proposes to improve the design. [New content] The main purpose of this creation is to provide an adjustable height and extension stand, which has convenient adjustment and quickness, and has good support strength and can withstand the increase of gravity effect on the table and chair. Another purpose of this creation is to provide an adjustable height telescopic stand, each of which can be individually adjusted to match the uneven bottom of the four end bottoms, so that the table and chair surface is always horizontal. By. In order to achieve the above object, the technical means adopted by the present invention comprises: an outer tube having a combined body at an upper end thereof for fixing to a bottom surface of a body; and a positioning rod having a top portion fixed to a bottom surface of the combined body so that The positioning rod is disposed at the center of the outer tube, and the positioning rod is provided with at least one side of the protruding tooth; and an inner tube has a positioning sleeve fixed in the upper end of the tube, and the middle M330403 of the positioning sleeve is matched with the positioning rod. The body is formed by at least one longitudinal groove provided with a convex tooth at a peripheral edge of the perforation, and a lateral groove which can be screwed into the convex tooth is arranged adjacent to the longitudinal groove, so that the inner tube is adjusted to a predetermined position Rotating an angle after the length allows the inner and outer tubes to be combined with a fixed pattern. [Embodiment] First, referring to the third to sixth embodiments, a preferred embodiment of the present invention includes an outer tube (10) having a combined body (11) at its upper end, which can be A fixing member (12) such as a screw or a nail is fixed to the bottom surface of the body (70). a positioning rod (20) which is substantially the same length or slightly shorter than the outer tube (10), the top portion of which is fixed to the bottom surface of the combined body (11) so as to be located at the center of the outer tube (10), and The positioning rod (20) is provided with at least one side of the arranging convex teeth (21). In this embodiment, the symmetrical parallel teeth (21) are provided on both the left and right sides. However, the present invention is not limited thereto, that is, a single side may also be used. Implementation, but it is better to have convex teeth (21) on both sides at the same time. An inner tube (30) has a positioning sleeve (40) fixed in the upper end of the nozzle. The intermediate perforation of the positioning sleeve (40) is formed by matching the shape of the positioning rod (20), and the perforation periphery is at least One side is provided with a longitudinal groove (41) through which the convex tooth (21) can pass. In this embodiment, two left and right longitudinal grooves (41) are provided for the left and right convex teeth (21), but It is not limited to this. And the lateral groove (43) of the longitudinal groove (41) is provided with a transverse groove (43) for the positioning of the protruding tooth (21). The present embodiment is matched with the two rows of convex teeth (21), so that the front and the rear have a front and a rear. The two lateral grooves (42) are configured such that the inner tube (30) is adjusted to a predetermined length and then rotated by an angle to fix the inner and outer tubes (30) and (10) to each other. Moreover, the bottom of the positioning rod (2) is locked by a screw (51) to a circular guide block (50) having an outer diameter smaller than M330403 or equal to the inner diameter of the inner tube (30), and the function of the guide block (50) When the inner tube (30) is telescoped in the outer tube (10), the positioning rod (2〇) is not offset, and can be used as a positioning member of the starting point of the positioning sleeve (40), thereby preventing the inner tube (30) Disengage the outer tube (10). As for the bottom of the inner tube (30), a rubber pad (6 〇) may be attached to the bottom of the inner tube (30) to prevent slipping, but is not limited thereto. Please refer to the fifth and fifth figures (A) and (B), which show that the inner tube (30) of this creation has not been combined with the outer tube (10), and it can be adjusted up and down. That is, the longitudinal groove (41) of the positioning sleeve (40) is in the same direction as the protruding tooth (21), so the inner tube (30) can be freely displaced up and down. Then, if the inner tube (3〇) adjusts the predetermined extension length, as shown in the sixth and sixth figures (A) and (B), the square tube turns the inner tube (30) to the angle (this embodiment). For example, if the rotation is counterclockwise about g 〇, the transverse grooves (42) of the positioning sleeve (40) can be embedded in the convex teeth (21) and fixed to each other. Furthermore, in order to allow the lateral grooves (42) to be smoothly nested, the embedding end is configured to expand the lead angle (44), and the trailing end has a crotch surface (43). Thus, the transverse groove ( 42) After successfully reaching the predetermined angle, the secret surface (10) can be placed against the convex tooth (21) without exceeding the nesting position, so the user is very convenient, and only needs to rotate hard to the end; The adjustment method of the table (chair) foot used by f is more convenient and humanized, and the combination of the convex tooth (8) and the lateral groove (42) of the position rod (10) makes the creation of the present invention have excellent strength, so that The table (chair) face body (10) can withstand the gravity of the human body silk, so it is practical and safe. 'The above description, the structure revealed by this creation is nothing for the past, and it can indeed achieve the improvement of efficacy' and has the advantage of being available to the industry. It fully complies with the new patent requirements, and asks the review committee to grant the patent to encourage Innovation, no sense of morality. M330403 However, the above-mentioned drawings and descriptions are only preferred embodiments of the present invention. Those who are familiar with the art, the modifications or equivalent changes made according to the spirit of the case should still be included in the scope of patent application in this case. Inside. M330403 — [Single I rnj_______ _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ The second figure is a cross-sectional view of a table and chair foot. The third figure is an exploded view of a possible embodiment of the present creation. The fourth figure is a cross-sectional view of a possible embodiment of the present creation. The fifth picture is a schematic diagram of the state in which the creation is unlocked and adjusted. Figure 5 (A) is a cross-sectional view of section 5A-5A in the fifth diagram. Fig. 5(B) is a cross-sectional view taken along line 5B-5B of Fig. 5(A). The sixth picture is a schematic diagram of the state in which the creation is nested and combined with internal and external tubes. Figure 6 (A) is a cross-sectional view taken along line 6A-6A of the sixth figure. Fig. 6(B) is a cross-sectional view taken along line 6B-6B of the sixth diagram (A). [Explanation of main component symbols] (10) Outer tube (11) Combination body (12) Fixing element (20) Positioning rod (21) Concave tooth (30) Inner tube (40) Positioning sleeve (41) Longitudinal groove (42) Landscape Slot (50) Guide block (51) Screw (60) Rubber pad (70) Body -10-