200840766 九、發明說明： 【發明所屬之技術領域】 本發明係有關於一種以浮筒組合成之裝置，其可在水 面上圍設特定水域，以形成可於其中安全游泳、戲耍之區 間’其構造並可調整其於水中承受之浮力與位於水中之適 當定位者。 【先前技術】 浮筒在水面上的應用相當頻繁，但大抵以多數浮筒靠 ) 併組合形成一飄浮於水平面上之平台為主要應用，常作為 碼頭或漁業中之養殖用途，如台灣專利公告號碼254801、 259076、259077、260135、287513、315829、329080、370072、 370958、358452，所述相關專利案大致都揭露同樣的一種 v具有中空腹腔的浮筒構造，其浮筒與浮筒間聯結方式，主 要係藉由在每一浮筒中空腹腔外的四角落處各設有突耳， 母一突耳上開有迫緊孔，當兩浮筒之突耳上下交疊而迫緊 )孔相對應時，藉一迫緊桿嵌插入兩交疊的迫緊孔中，來使 兩浮筒形成聯結；此種浮筒構造中空腔體極大，其所提供 的浮力甚大，然位於角落之突耳甚薄，因此浮筒中心受力 時，其與至突耳間距離的力矩，在浮筒組併後的穩定性較 差；且此種浮筒較適合水平的組併，雖然其作上下组併時， 可利用繩索上下穿經堆疊的浮筒突耳來達成，但繩索之繩 才二小犬耳的迫緊孔大（因為原係供迫緊桿穿鎖用），則 下串接後，在水的浮力作用下，錯移的不穩定性更高、；另 外、所述該等習知浮筒僅能組合成二度空間水面上平台， 200840766 八、、法解決夕數浮筒組合所形成龐大浮力如何沉入水中 的問严’故其無法在水中作三度空間的利用。 【發明内容】 本發明提供一種浮筒組合裝置，包括：一設於水面上 的〇座由多數浮筒相互併靠而共同浮設於水面上所形成； 一設於水面下的底座，由多數浮筒相互併靠並共同 沉設於 水中而形成，一設於所述台座與底座間之圍牆，由多數浮 筒相互疊置而大致沉設於水中而形成，該等浮筒疊置後形 )成多數面互呈適當角度之立設牆面，各牆面則共同園設成 一區間，區間之下方由所述底座所封閉，上方則為一開口； 藉以上構k，其可在水面上圍設特定水域，以形成可於其 中安全游泳、戲耍之區間者。 【實施方式】 請參閱第一、二圖，本發明實施例係以浮筒組合成游 泳池之實施例，整體可設於湖泊、海上、潭、水庫或其它 具有水域之場合；組合形狀並不限制於本實施例之大小及 形狀；本發明實施例包括： 一設於水面上的台座1 ’由多數浮筒2 2相互併靠而 共同浮設於水面上所形成；浮筒2 2的數目依照欲構設之 遊泳池大小，所延伸之台座1亦可依需要作多排浮筒2 2 之组倂； 一設於水面下的底座3，由多數浮筒22相互併靠並 共同沉設於水中而形成； 一設於所述台座1與底座3間之圍牆4，由多數浮筒 200840766 2 1相互疊置而大致沉設於水中而形成，該等浮筒2 1疊 置後形成多數面互呈適當角度之立設牆面41，各牆面4 1則共同圍設成一封閉區間4 2 ;封閉區間4 2之下方由 所述底座3所封閉，上方則為一開放空間之開口 4 2 1， 所述台座1係設於封閉區間4 2之開口 4 2 1外侧，包括 牆面41上方及往牆面4 1外延伸； 所述台座1、底座3、圍牆4可皆使用相同於第三圖 所示之浮筒2 1造，或皆相同於第五圖所示之構造，或如 ) 本發明實施例第一圖中圍牆4使用如第五圖所示之浮筒2 1，而台座1及底座3使用如第三圖所示之浮筒2 2。 請參閱第三、五圖，浮筒2 1設有：一腔體2 1 1， 大致呈長方體狀，其内部中空並由塑膠之撓性材質製成， 、 腔體2 1 1上方設有第一結合構造之凸座2 1 2，’共設有 二凸座212,每一凸座212各具有等邊之八邊形造 型；腔體211下方設有與所述凸座212位置上下對應 ) 之第二結合構造之凹座2 1 3，共設有二凹座2 1 3，每 一凹座2 1 3各具有等邊之八邊形造型及於凹座2 1 3内 設有一嵌穴214;腔體211中設有貫穿腔體11之多 數管體215,每一管體215内形成貫穿之孔道2 1 6，每一孔道21 6的一端各與凸座2 1 2上方相通，另 一端則與腔體21 1下方凹座2 1 3之嵌穴2 1 4相通； 孔道2 1 6的孔徑小於每一凹座2 13内嵌穴214之寬 度，因此各嵌穴214底部形成一肩部217;腔體2 1 200840766 1周緣之侧邊上設有多數併列之由上至下淺狀槽溝21 8 ’腔體21 1周緣之侧邊同時設有中空成型時所留下之 合模吹口 219，其可以塞蓋予以塞填密封；腔體211 上、下方表面相對處各設有向内凹設之導溝21〇。 浮筒2 1上方可以設置踏墊5，其上表面形成多數凹 紋5 1 ’以形成可供止滑的表面；踏墊5上表面於相對於 所述腔體2 1 1上凸座2 1 2位置處，設有凹陷之埋穴5 2;而踏墊5下表面於相對於所述腔體211上凸座21 2位置處’設有凹陷且與凸座2 1 2等邊之八邊形造型對 應之嵌穴5 3，以及在相對於浮筒2 1導溝2 1 〇處設有 上凹之凹溝5 4 ;埋穴5 2與嵌穴5 3間形成一穿孔5 5 ; 踏墊5與浮筒2 1間以包括螺栓6 1及螺帽6 2之兩 組連接組件6連結，連接組件6固定踏墊5與浮筒2 1 後，可於踏墊5埋穴5 2中覆蓋一罩蓋6 3。 請參閱第四圖，浮筒2 2具有浮筒2 1兩倍之體積， ) 故其第一結合構造設有四個凸座221，其内部及底部之 構造及材質與第三圖中之浮筒21大致相同，同理可推， 茲不贅述；惟因其體積較大，故在對應之腔體2 2 2兩侧 各設有内凹之扣座2 2 3，可便於兩手扣入搬運；另，因 該扣座2 2 3佔用腔體2 2 2兩側，故中空成型時所留下 之合模吹口 2 2 4則設於扣座2 2 3以外的另一侧；其配 合之踏墊5 6與第三圖所示者構造相同，但體積增加一 倍，所配合之連接組件6的數目亦較第三圖增加一倍；腔 200840766 體2 2 2上、下方表面相對處各設有十字交錯並向腔體2 2 2内凹設之導溝2 2 5。 請參閲第三、四圖，孔洞7所構成的沉力加強構造， 其可設於第一圖中遊泳池台座1、底座3或園牆4之住何 浮筒2 1或22上，使水可以進入浮筒2 1或浮筒2 2 中，至於在那一些或那一個浮筒2 1或浮筒2 2開設孔_ 7，以及孔洞7的多募，取決於要使整體下沉的程度。 請參閱第六圖，一浮力加強裝置8可設於所述台座 1、底座3或圍牆4上，本圖所示意者係分別設於台座1 下方之圍牆4兩侧和底座3下方之示意圖，二者並不〜定 須同時存在，可依整體游泳池體積及浮力大小（海水與淡 水之浮力亦不相同）設置一組或多組，本圖提供二個為〜 組平行設置之實施例r構造上包括：由撓性材料例如橡膠 所製成之中空管體8 1，其上設有打氣嘴8 2，其形成適 當長度並以多數Ω狀固定座83在適當間距下予以固定 ) 在圍牆4外或底座3下。 請參閱第七圖，所述浮力加強裝置8亦依游泳池形 狀，形成環繞圍牆4或環設於底座3下方之環狀中空管體 8 4，並以多數Q狀固定座8 5在適當間距下予以固定。 本發明實施例之游泳池在構築上，可先以浮筒2 2(亦 可為浮筒21)併置構築出預定形狀大小之底座3，再於 底座3上之周圍以浮筒2工（亦可為浮筒2 2)疊置構築 出圍牆4之各牆面41以形成封閉區間4 2 ;封閉區間4 一8〜 200840766 2開口421外侧’包括牆面41上方以浮筒22疊置並 往牆面4 1外延伸，延伸多寬則視需要之台座丄多大而 定；台座1及各牆面41共同圍設之封閉區間4 2$方= 座3上，可以設置踏墊5或踏墊5 6，並以連接组件6予 以連接固定；其中，踏墊5或踏墊56之拼組以跨接不同 的浮筒2 2間為原則，以減少二浮筒2 2間受水面波動錯 移，增加穩疋性。另外，圍牆4上、下各浮筒2 1間形成 較高的縱長，故由台座1上浮筒22經圍牆4各浮筒21 而至下方底座3的浮筒2 2間係以具較長螺栓6 1之連接 組件Θ予以連結固定。 考量整體游泳池之體積，若圍牆4甚高而封閉區間4 2不大，則因此將造成浮力甚大，在構築時，則在若干浮 筒2 1、2 2設有孔洞7之沉力加強構造，使整體在至少 台座1浮於水面上的前提下，使水進入孔洞7中下沉於水 域適當深度；該孔洞7亦可於必要時直接在未設孔洞7之 浮筒2 1、2 2上鑽洞形成。 若圍牆4較淺矮但封閉區間4 2較大，則整體浮力可 能較小，在構築時，則將浮力加強裝置8設於底座3或圍 牆4上’打入氣體於管體81或8 4中來增加整體的浮力。 所述孔洞7之沉力加強構造與浮力加強裝置8可同時 設於遊泳池結構中，亦可二者擇一或皆不設置，完全依構 築時之情況而定。 請參閱第八、九圖，底座3各浮筒2 2上之導溝2 2 200840766 0上可以佈設金屬或其它適當材質之網體9後再嵌設踏墊 5 6，由於踏墊5 6除設有凹溝5 7外，兩侧下方亦各形 成凹緣5 8，故對併之兩踏墊5 6凹緣5 8共同形成與四 溝5 7 —樣大小之區間，故能與浮筒2 2之導溝2 2 0共 同容納網體9;此網體9可以預防游泳池因過多戲水者的 承載，避免發生意外！ 綜上所述，本發明實施例之構造設計不僅提供浮筒組 > 合成之裝置可在水面上圍設特定水域之三度空間，以形成 可於其中安全游泳、戲耍之區間，其構造並可調整於水中 承受之浮力與位於水中之適當定位；以其既未見於習知浮 筒構築之裝置中，亦未公開於申請前，爰依法提出發明專 利申請。 惟以上所述者’僅為本發明之較佳可行實施例而已， 當不能以此限定本發明實施之範圍，即大凡依本發明申請 專利範園及發明說明書内容所作之等效結構變化與修飾， )皆應仍屬本發明專利所涵蓋之範圍。 【圖式簡單說明】 第一圖所示係本發明實施例之立體示意圖。 第二圖所示係本發明實施例之剖面示意圖（圖中浮力加 強裝置係第七圖之實施例）。 第三圖所示係本發明實施例中浮筒組裝之立體分解圖。 第四圖所示係本發明實施例中另一種浮筒組裝之立體 分解圖。 第五圖所示係第三翻中之本發明實施例浮筒組裝之部 一 1 0 一 200840766 份剖面立體分解圖。 第六圖所示係將本發明實施例翻轉並顯示後侧浮力加 強裝置之構造示意圖。 第七圖所示係將本發明實施例翻轉並顯示後侧另一浮 力加強裝置實施例之構造示意圖。 第八圖所示係將本發明實施例中之底座設置網體之構 造立體分解示意圖。 2 1 浮筒 2 1 3凹座 2 1 6孔道 2 1 9 吹口 2 2 1凸座 2 2 4 吹口 4 圍牆 4 2 1 開口 5 2 埋穴 55 穿孔 5 8 凹緣 6 2 螺帽 7 1 孔洞 8 2 打氣嘴 8 5 固定座 第九圖所示係將本發明實施例中之底座設置網體之部 份剖面示意圖。 【主要元件符號說明】 1 台座 2 1 2凸座 2 1 5管體 2 18槽溝 2 2 浮筒 2 2 3扣座 3 底座 4 2 封閉區間 5 1 凹紋 5 4 凹溝 5 7 凹溝 6 1 螺栓 7 孔洞 8 1 管體 8 4 管體 2 1 1腔體 2 1 4嵌穴 2 1 7肩部 2 1 0導溝 2 2 2腔體 2 2 5導溝 4 1 牆面 5 踏墊 5 3 嵌穴 5 6 踏墊 6 連接組件 6 3 罩蓋 8浮力加強裝置 B 3 固定座 9 網體200840766 IX. Description of the Invention: [Technical Field] The present invention relates to a device assembled by a pontoon, which can enclose a specific water area on a water surface to form a section in which it can safely swim and play. It can also adjust its buoyancy in the water and the appropriate positioner in the water. [Prior Art] The application of the pontoon on the water surface is quite frequent, but it is mostly used by most pontoons and combined to form a platform floating on a horizontal surface. The main application is often used as a breeding application in docks or fisheries, such as Taiwan Patent Notice No. 254801. 259076, 259077, 260135, 287513, 315829, 329080, 370072, 370958, 358452, the related patents generally disclose the same type of buoy structure with a hollow abdominal cavity, the way of connecting the buoy and the buoy, mainly by Each of the four corners outside the hollow cavity of the pontoon is provided with a lug, and the mother has a tight hole on the ear, and when the ears of the two pontoons overlap and are pressed tightly, the hole corresponds to a forced rod. Inserted into two overlapping pressing holes to form a joint of the two buoys; in the structure of the pontoon, the cavity is extremely large, and the buoyancy provided by the pontoon is very large, and the lug at the corner is very thin, so when the center of the ponto is stressed, The torque from the distance to the lug is less stable after the pontoon group; and the pontoon is more suitable for the horizontal group, although it can be used as the upper and lower groups, the rope can be used. Up and down through the stack of floating buoys to achieve, but the rope of the rope is only two small dogs ears tight (because the original for the tight rod to lock), then after the series, under the buoyancy of water, The instability of the misplacement is higher; in addition, the conventional buoys can only be combined into a platform on the surface of the second-degree space, 200840766 VIII. How to solve the problem of how the huge buoyancy formed by the pontoon combination in the water sinks into the water Strictly, it is impossible to make use of the three-dimensional space in the water. SUMMARY OF THE INVENTION The present invention provides a pontoon assembly apparatus comprising: a raft seat disposed on a water surface formed by a plurality of pontoons abutting each other and floating on a water surface; a base disposed under the water surface, the plurality of pontoons being mutually Formed by and together in the water, a wall disposed between the pedestal and the base is formed by stacking a plurality of pontoons on each other and substantially sinking in the water, and the pontoons are stacked to form a plurality of faces. The wall is erected at an appropriate angle, and the walls are collectively arranged in an interval. The lower part of the section is closed by the base, and the upper part is an opening. By the above structure k, it can enclose a specific water area on the water surface. In order to form a section in which it is safe to swim and play. [Embodiment] Please refer to the first and second figures. The embodiment of the present invention is an embodiment in which a pontoon is combined into a swimming pool, and the whole can be set in a lake, a sea, a pool, a reservoir or other places with water; the combined shape is not limited to The size and shape of the embodiment; the embodiment of the invention comprises: a pedestal 1' disposed on the water surface is formed by a plurality of pontoons 2 2 abutting each other and floating on the water surface; the number of pontoons 2 2 is configured according to The size of the swimming pool, the extended pedestal 1 can also be used as a group of multiple rows of pontoons 2 2; a base 3 disposed under the water surface, formed by a plurality of pontoons 22 abutting each other and being co-located in the water; The wall 4 between the pedestal 1 and the base 3 is formed by stacking a plurality of pontoons 200840766 2 1 substantially in the water, and the pontoons 2 1 are stacked to form a erect wall with a plurality of faces at appropriate angles In the face 41, each wall surface 4 1 is enclosed by a closed section 4 2; the lower part of the closed section 4 2 is closed by the base 3, and the upper part is an open space opening 4 2 1, the base 1 is Opening 4 in closed section 4 2 2 1 outside, including above the wall 41 and extending outside the wall 4 1; the pedestal 1, the base 3, and the wall 4 can all be made using the same pontoon 2 1 as shown in the third figure, or all the same as the fifth In the configuration shown in the drawings, or as in the first embodiment of the present invention, the wall 4 uses the pontoon 2 1 as shown in the fifth figure, and the pedestal 1 and the base 3 use the pontoon 2 2 as shown in the third figure. Referring to the third and fifth figures, the pontoon 2 1 is provided with a cavity 2 1 1 and a substantially rectangular parallelepiped shape, the interior of which is hollow and made of a flexible material of plastic, and the first part of the cavity 2 1 1 is provided first. The two protrusions 212 are respectively provided in the joint structure 2 1 2, and each of the protrusions 212 has an equilateral octagonal shape; the lower portion of the cavity 211 is disposed corresponding to the position of the protrusion 212; The second combined structure recess 2 1 3 is provided with two recesses 2 1 3 , each recess 2 1 3 has an equilateral octagonal shape and a recess 214 is formed in the recess 2 1 3 The cavity 211 is provided with a plurality of tubes 215 extending through the cavity 11, and each of the tubes 215 is formed with a through hole 2 166. One end of each of the holes 21 6 is communicated with the upper portion of the protrusion 2 1 2 , and the other end Then, it is in communication with the recess 2 1 4 of the recess 2 1 3 below the cavity 21 1; the aperture of the tunnel 2 16 is smaller than the width of the recess 214 of each recess 2 13 , so a shoulder is formed at the bottom of each recess 214 217; cavity 2 1 200840766 1 side of the circumference is provided with a plurality of juxtaposed from top to bottom shallow groove 21 8 'cavity 21 1 side of the periphery of the periphery is also provided with a mold opening mouth left during hollow molding 219 The plug can be plugged and sealed; the upper and lower surfaces of the cavity 211 are respectively provided with inwardly recessed guide grooves 21〇. A bolster 5 may be disposed above the pontoon 2 1 , and a plurality of concave ribs 5 1 ′ are formed on the upper surface thereof to form a surface for preventing slippage; the upper surface of the bolster 5 is opposite to the cavity 2 1 1 on the protrusion 2 1 2 The position is provided with a recessed hole 52; and the lower surface of the step 5 is at the position relative to the protrusion 211 on the cavity 211, and is provided with a recess and an octagon with the protrusion 2 1 2 and the like. a matching hole 5 3 corresponding to the shape, and a concave groove 5 4 at a groove 2 1 相对 relative to the pontoon 2 1 ; a hole 5 5 is formed between the hole 5 2 and the insertion hole 5 3 ; Between the pontoon 2 and the two sets of connecting components 6 including the bolts 6 1 and the nuts 612 , the connecting component 6 fixes the bolster 5 and the pontoon 2 1 , and can cover a blister 5 2 in the burr 5 2 . 6 3. Referring to the fourth figure, the pontoon 2 2 has twice the volume of the pontoon 2 1 , so the first joint structure is provided with four protrusions 221 , and the structure and material of the inner and bottom portions are substantially the same as those of the pontoon 21 in the third figure. The same, the same reason can be pushed, I will not repeat them; but because of its large size, there are recessed buckles 2 2 3 on both sides of the corresponding cavity 2 2 2, which can facilitate the two hands to carry in and carry; Since the buckle seat 2 2 3 occupies both sides of the cavity 2 2 2, the mold opening mouthpiece 2 2 4 left in the hollow molding is disposed on the other side than the buckle seat 2 2 3; the mat 4 is matched 6 is the same as that shown in the third figure, but the volume is doubled, and the number of connected components 6 is doubled compared with the third figure; the cavity 200840766 body 2 2 2 has a cross on each of the upper and lower surfaces. The guide grooves 2 2 5 are recessed and recessed into the cavity 2 2 2 . Please refer to the third and fourth figures, the reinforced structure of the hole 7 can be arranged on the pontoon 2 1 or 22 of the swimming pool pedestal 1, the base 3 or the slab 4 in the first figure, so that the water can Entering the pontoon 2 1 or the pontoon 2 2, as for the vents 2 1 or the pontoons 2 2 to open the holes _ 7, and the plurality of holes 7 depending on the extent to which the whole is to be sunk. Referring to the sixth figure, a buoyancy reinforcing device 8 can be disposed on the pedestal 1, the base 3 or the wall 4. The figure is shown in the figure below, respectively, on both sides of the wall 4 below the pedestal 1 and below the base 3. The two do not have to exist at the same time, and one or more groups can be set according to the overall swimming pool volume and buoyancy (the buoyancy of sea water and fresh water is also different). This figure provides two embodiments for the parallel arrangement of the group r. The invention comprises: a hollow pipe body 181 made of a flexible material such as rubber, and an air nozzle 8 2 provided thereon, which is formed to have an appropriate length and fixed at a proper spacing by a plurality of Ω-shaped fixing seats 83) 4 outside or under the base 3. Referring to the seventh figure, the buoyancy reinforcing device 8 also forms an annular hollow tube body 8 surrounding the wall 4 or under the base 3 according to the shape of the swimming pool, and is arranged at a proper spacing by a plurality of Q-shaped fixing seats 85. Fix it underneath. In the construction of the swimming pool of the embodiment of the present invention, the base 3 of a predetermined shape may be constructed by the pontoon 22 (also the pontoon 21), and then the pontoon 2 may be used around the base 3 (or the pontoon 2) 2) Stacking the wall faces 41 of the fence 4 to form the closed section 4 2; the closed section 4 - 8 to 200840766 2 the outside of the opening 421 'including the wall 41 above the pontoon 22 and extending to the wall 4 1 The extension width depends on how big the pedestal is needed; the pedestal 1 and each wall 41 are enclosed by a closed section 4 2$ square = seat 3, which can be set with a mat 5 or a mat 5 6 and connected The assembly 6 is fixedly connected; wherein the grouping of the mat 5 or the mat 56 is based on the principle of bridging the different buoys 2 2 to reduce the fluctuation of the water surface fluctuation between the two buoys 2 2 and increase the stability. In addition, the upper and lower pontoons 2 1 of the wall 4 are formed with a relatively high longitudinal length, so that the pontoon 1 is floated by the pontoon 22 of the pylon 4 to the pontoon 21 of the lower base 3 and has a longer bolt 6 1 The connecting components are connected and fixed. Considering the volume of the whole swimming pool, if the wall 4 is very high and the closed section 4 2 is not large, the buoyancy will be very large. When constructing, the pontoon 2 1 and 2 2 are provided with a force-strengthening structure of the hole 7 On the premise that at least the pedestal 1 floats on the water surface, the water enters the hole 7 and sinks to a proper depth in the water; the hole 7 can also directly drill holes in the pontoons 2 1 and 2 2 where the hole 7 is not provided. form. If the wall 4 is shallower but the closed section 42 is larger, the overall buoyancy may be smaller. When constructing, the buoyancy reinforcing device 8 is disposed on the base 3 or the wall 4 to 'inject gas into the pipe 81 or 8 4 To increase the overall buoyancy. The force-enhancing structure of the hole 7 and the buoyancy-enhancing device 8 may be disposed in the swimming pool structure at the same time, or may be neither provided nor set, depending on the situation at the time of construction. Please refer to the eighth and ninth figures, the guide groove 2 on each pontoon 2 of the base 3 2 200840766 0 can be laid with metal or other suitable material of the mesh body 9 and then embedded with the mat 5 6, due to the mat 5 6 There is a groove 5 7 and a concave edge 5 8 is formed at the lower side of each side. Therefore, the two recesses 5 6 of the two mats form a section of the same size as the four grooves, so that the buoy 2 2 can be combined with the buoy 2 2 The guiding groove 2 2 0 together accommodates the net body 9; the net body 9 can prevent the swimming pool from being overloaded by the water player and avoid accidents! In summary, the structural design of the embodiment of the present invention not only provides a pontoon set> The integrated device can enclose a three-dimensional space of a specific water area on the water surface to form a section in which swimming and play can be safely performed, and the structure can be constructed. Adjust the buoyancy in the water and the proper positioning in the water; it is neither found in the device constructed by the conventional float, nor is it disclosed before the application, and the invention patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the equivalent structural changes and modifications made by the present invention in accordance with the scope of the invention and the description of the invention are not limited thereto. , ) shall remain within the scope of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The first figure shows a perspective view of an embodiment of the present invention. The second drawing is a schematic cross-sectional view of an embodiment of the present invention (the buoyancy reinforcing device in the figure is an embodiment of the seventh drawing). The third figure shows an exploded perspective view of the assembly of the float in the embodiment of the present invention. The fourth figure shows a perspective exploded view of another pontoon assembly in an embodiment of the present invention. The fifth figure shows a third embodiment of the pontoon assembly of the embodiment of the present invention. Fig. 6 is a schematic view showing the construction of the embodiment of the present invention and showing the structure of the rear side buoyancy reinforcing device. Fig. 7 is a schematic view showing the construction of an embodiment of the present invention in which the embodiment of the present invention is turned over and shows another embodiment of the buoyancy reinforcing device on the rear side. The eighth figure shows a three-dimensional exploded view of the structure of the base body in the embodiment of the present invention. 2 1 float 2 1 3 recess 2 1 6 hole 2 1 9 mouth 2 2 1 boss 2 2 4 mouth 4 wall 4 2 1 opening 5 2 hole 55 perforation 5 8 recess 6 2 nut 7 1 hole 8 2 Airing nozzle 8 5 Fixing seat The ninth drawing shows a partial cross-sectional view of the base body in the embodiment of the present invention. [Main component symbol description] 1 pedestal 2 1 2 boss 2 1 5 pipe body 2 18 groove 2 2 pontoon 2 2 3 buckle seat 3 base 4 2 closed section 5 1 concave groove 5 4 groove 5 7 groove 6 1 Bolt 7 Hole 8 1 Tube 8 4 Tube 2 1 1 Cavity 2 1 4 Insert 2 1 7 Shoulder 2 1 0 Guide 2 2 2 Cavity 2 2 5 Guide 4 1 Wall 5 Mat 5 3 Insert hole 5 6 Mat 6 Connection assembly 6 3 Cover 8 Buoyancy reinforcement device B 3 Fixing seat 9 Net body