JPS6348861Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は曲げ配管部の継手管として使用される
掃除口を有するベンド管に係る。[Detailed Description of the Invention] The present invention relates to a bent pipe having a cleaning port used as a joint pipe of a bent piping section.

本願ではエルボ管を含めベンド管と称する。 In this application, the elbow pipe is also referred to as a bend pipe.

通常配管の掃除口は曲げ配管部に配され、該曲
げ配管部を構成する継手管として予め掃除口を付
属させたベンド管が準備される。 Usually, the cleaning port of the piping is disposed in the bent piping section, and a bent pipe to which the cleaning port is attached is prepared in advance as a joint pipe constituting the bent piping section.

このようなベンド管に付属される掃除口は曲げ
配管の角部に位置され、できるだけベンド管の管
壁より突出しないように取付けられることが望ま
れる。 It is desirable that the cleaning port attached to such a bent pipe be located at a corner of the bent pipe so as not to protrude from the wall of the bent pipe as much as possible.

本考案は上記要請に応えつつ、掃除口開閉の操
作性をも改善し、併せて構造の堅牢化を図つた掃
除口付ベンド管を提供する。 The present invention provides a bent pipe with a cleaning port that meets the above requirements, improves the operability of opening and closing the cleaning port, and has a more robust structure.

第１図乃至第４図に示した実施例において、２
は両端に配管継手用のフランジ２ａ，２ｂを有す
るベンド管、１は該ベンド管２の外曲部に設けら
れた掃除口を示す。詳述するならば、ベンド管２
の外曲部に掃除用の窓７を開穿し、該窓７の周縁
に上面が平坦で稍々肉厚のリング状座盤８を窓周
縁の管壁曲面に沿い密着して取付ける。 In the embodiment shown in FIGS. 1 to 4, 2
1 shows a bent pipe having flanges 2a and 2b for piping joints at both ends, and 1 indicates a cleaning opening provided at the outer curved part of the bent pipe 2. To be more specific, bend pipe 2
A window 7 for cleaning is opened in the outer curved part of the window 7, and a ring-shaped seat 8 with a flat upper surface and a slightly thick wall is attached to the periphery of the window 7 in close contact along the curved surface of the pipe wall at the periphery of the window.

該座盤８の上面周囲に複数の袋穴９を間隔的に
穿け、他方一端にボール継手４ａを有するボルト
４を準備し、該ボール継手４ａを上記袋穴９内に
滑合する。即ち、各ボルト４を該両者の滑合にて
形成される自在継手を介し、座盤８に連結すると
共に、各袋穴９を座盤８の側面で凹欠し、該凹欠
部９ａより上記ボール継手付ボルトの側転を可と
なす。 A plurality of blind holes 9 are bored at intervals around the upper surface of the seat 8, a bolt 4 having a ball joint 4a at one end is prepared, and the ball joint 4a is slidably fitted into the blind hole 9. That is, each bolt 4 is connected to the seat plate 8 through a universal joint formed by slidingly fitting the two bolts, and each blind hole 9 is recessed in the side surface of the seat plate 8, and from the recessed part 9a. The above bolt with ball joint can be rolled sideways.

更に上記掃除用の窓７を上記リング状座盤８の
上面に密着閉合される鍔部３ａと、該閉合下で上
記窓７内に密嵌される栓部３ｂとを有する蓋３に
て閉塞する。 Furthermore, the cleaning window 7 is closed with a lid 3 having a flange 3a that is tightly closed to the upper surface of the ring-shaped seat 8, and a plug 3b that is tightly fitted into the window 7 when the window 7 is closed. do.

上記蓋３にはその鍔部３ａの周縁に上記袋穴９
と対応するボルト係入用切欠６を設け、上記ボー
ル継手付ボルト４を該切欠部６内へ係入しつつ鍔
部上へ起立可とする。又輪５ａを具備せるアイナ
ツト５を準備し、該アイナツト５を上記鍔部上へ
起立されるボルト４を螺合して上記鍔部上面へ定
着可となし、該アイナツト５の輪５ａ内に工具を
差し入れる等して同ナツト５を回螺することによ
り同ナツト５と上記リング状座盤８間に上記蓋３
の鍔部３ａを緊締し密閉を図る。同様にアイナツ
ト５を緩めボール継手付ボルト４を径方向へ側転
して蓋３を開放可とする。 The lid 3 has the blind hole 9 at the periphery of the flange 3a.
A bolt insertion notch 6 corresponding to the above is provided, and the bolt 4 with the ball joint can be inserted into the notch 6 and raised onto the flange. In addition, an eye nut 5 equipped with a ring 5a is prepared, and the eye nut 5 can be fixed to the upper surface of the collar by screwing the bolt 4 raised up onto the flange, and a tool is inserted into the ring 5a of the eye nut 5. The lid 3 is inserted between the nut 5 and the ring-shaped seat 8 by turning the nut 5.
Tighten the flange 3a to seal it tightly. Similarly, the eye nut 5 is loosened and the ball joint bolt 4 is rolled in the radial direction to allow the lid 3 to be opened.

上記アイナツト５を具備せるボール継手付ボル
ト４は第２図より理解されるようにベンド管２の
軸芯に対し、45゜振つた位置に四個所設け、座盤
８の肉厚が全て等厚となり、且つ充分な厚みが確
保できる位置で上記袋穴９を設け、各ボルト４の
ボール継手４ａを滑合させる。 The bolts 4 with ball joints equipped with the eye nuts 5 are installed at four locations at 45 degrees with respect to the axis of the bent pipe 2, as can be understood from FIG. The blind hole 9 is provided at a position where a sufficient thickness can be ensured, and the ball joint 4a of each bolt 4 is slidably fitted.

従来ベンド管に掃除口を付属させる場合、鍔付
短管を上記窓の周縁から立設し、該短管の鍔部へ
窓栓付蓋を閉合する構成とすると共に、ボルトを
鍔部下面に張り出させた軸受板にピン軸にて回動
可に取付けし、該ボルトを該ピン軸を支点として
短管に閉合された蓋上へ直立させ、これに六角ナ
ツトを螺合して蓋の締付け、密閉を図る構成を採
つていた。 Conventionally, when attaching a cleaning port to a bent pipe, a short pipe with a flange is set upright from the periphery of the window, a lid with a window stopper is closed to the flange of the short pipe, and a bolt is attached to the underside of the flange. The bolt is rotatably attached to the protruding bearing plate using a pin shaft, and the bolt is made to stand upright on the lid that is closed to the short pipe using the pin shaft as a fulcrum, and a hexagonal nut is screwed onto this to secure the lid. It was designed to be tightened and sealed.

上記より理解されるように掃除口用に鍔付の短
管を使用するため、ベンド管の外曲部、即ち曲げ
配管部から該掃除口部が大きく飛び出る構造とな
るばかりか、短管の開口部がベンド管の窓より非
常に高い位置となるため、ベンド管内を臨める視
野が非常に狭いものとなつて汚損状態の確認、掃
除に極めて不便となるばかりか、掃除具、腕等の
出し入れ角度も制約を受け、掃除範囲も限られた
ものとなる。 As can be understood from the above, since a short pipe with a flange is used for the cleaning port, not only does the cleaning port protrude greatly from the outside curved part of the bent pipe, that is, the bent piping part, but also the opening of the short pipe Since the part is located very high above the window of the bend pipe, the field of view looking into the inside of the bend pipe is very narrow, which not only makes it extremely inconvenient to check for dirt and clean it, but also makes it difficult to put in and take out cleaning tools, arms, etc. The scope of cleaning is also limited.

加えて、蓋の栓は短管へ深く嵌入しつつベンド
管壁（窓壁）へ嵌合する非常に長い嵌合しろが必
要となつて、蓋が徒らに重く扱い憎いものとな
る。 In addition, the lid plug needs to have a very long fitting margin that fits deeply into the short pipe and into the bend pipe wall (window wall), making the lid unnecessarily heavy and difficult to handle.

更に六角ナツトでは締付が不安定で締付け作業
に大きな労力を要し、これを軽減するためアイナ
ツト等を用いると更に突出高さが高くなるのでこ
れを使用することもできず、ボルト支点がピン軸
構造では強力な締付けに対し強度に欠け、錆、薬
品劣化等で折損する恐れがある等の数々の短所を
有する。それにも拘らず今日まで殆んど改善を見
ることなく使用されてきたのが実情である。 Furthermore, with hexagonal nuts, tightening is unstable and requires a lot of effort, and if you use an eye nut to reduce this, the protrusion height will be even higher, so it is impossible to use this, and the bolt fulcrum is pinned. The shaft structure has a number of disadvantages, including a lack of strength against strong tightening and a risk of breakage due to rust, chemical deterioration, etc. Despite this, the reality is that it has been used until today with almost no improvement.

本考案は掃除口付ベンド管の上記欠点を一掃
し、上記の如き実情を抜本的に打開する。 The present invention eliminates the above-mentioned drawbacks of the bent pipe with a cleaning port and fundamentally overcomes the above-mentioned situation.

即ち、本考案においては既述した構造の採用か
ら、掃除口の蓋を嵌着する口出しが座盤の厚みの
みに過ぎず、該座盤の厚みをボルトのボール継手
を埋込滑合するに足る厚みにすれば良く、曲げ配
管部からの突出高さを従来の数分の一に抑えるこ
とができ、従つてアイナツト等の締付機構を採用
しても突出高さを許容限度内に止めることがで
き、それ自身は蓋の開放時には側転されてしまう
ので、掃除作業時にはベンド管の管壁から座盤の
厚みだけの僅かな立上げ高さになり、従つてベン
ド管内の視野角度が著しく拡大されることとな
り、掃除可能範囲が大巾に拡大され、作業性のよ
い能率的な管内清掃が可能となる。 That is, in the present invention, since the above-mentioned structure is adopted, the opening for fitting the cleaning port cover is only the thickness of the seat, and the thickness of the seat is not enough to fit the ball joint of the bolt. It only needs to be thick enough, and the protrusion height from the bent pipe can be reduced to a fraction of that of conventional pipes. Therefore, even if a tightening mechanism such as an eye nut is used, the protrusion height can be kept within the allowable limit. Since the lid itself is cartwheeled when the lid is opened, the height of the bend pipe is raised from the wall of the bend pipe only by the thickness of the seat during cleaning work, and therefore the viewing angle inside the bend pipe is reduced. As a result, the cleaning area is greatly expanded, and the inside of the pipe can be cleaned efficiently with good workability.

加えて、蓋の開閉、締付密閉作業が容易に行
え、構造的に締付機構が堅牢で強力な蓋締付を可
能とする等の多くの長所を期待できる。 In addition, it can be expected to have many advantages, such as opening/closing the lid, tightening and sealing operations with ease, and having a structurally robust tightening mechanism that enables strong lid tightening.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例を示す掃除口付ベンド
管の外観図、第２図は同平面図、第３図は第２図
Ａ−Ａ線断面図、第４図は第２図Ｂ−Ｂ線断面図
である。 １……掃除口、２……ベンド管、３……蓋、３
ａ……同鍔部、３ｂ……同栓部、４……ボール継
手付ボルト、４ａ……ボール継手、５……アイナ
ツト、５ａ……同輪、６……切欠部、７……掃除
用窓、８……リング状座盤、９……袋穴、９ａ…
…凹欠部。 Fig. 1 is an external view of a bent pipe with a cleaning port showing an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a sectional view taken along line A-A in Fig. 2, and Fig. 4 is Fig. 2 B. -B sectional view. 1... Cleaning port, 2... Bend pipe, 3... Lid, 3
a...Same flange, 3b...Same stopper, 4...Bolt with ball joint, 4a...Ball joint, 5...Eye nut, 5a...Same ring, 6...Notch, 7...For cleaning Window, 8...ring-shaped seat, 9...blind hole, 9a...
...Concave part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ベンド管の外曲部に開穿した窓の周縁に稍々肉
厚のリング状座盤を取付け、該座盤の上面周囲に
複数の袋穴を間隔的に穿け、該各袋穴にボール継
手付ボルトを該ボール継手を以つて滑合すると共
に、各袋穴を座盤側面で凹欠し、該凹欠部よりボ
ール継手付ボルトの側転を可となし、更に上記窓
を上記リング状座盤上面に閉合される鍔部と該閉
合下で上記窓内に密嵌される栓部とを有する蓋に
て閉塞し、該蓋の鍔部の周縁に上記袋穴と対応す
るボルト係入用切欠を設け、上記ボール継手付ボ
ルトを該切欠部内へ係入して鍔部上へ起立可とす
ると共に、該鍔部上へ起立されるボルトにアイナ
ツトを螺合して上記鍔部上面へ定着可となし、該
アイナツトの回螺により同ナツトと上記リング状
座盤間に上記蓋の鍔部を緊締して密閉を図り、又
アイナツトを緩めボール継手付ボルトを径方向へ
側転して蓋の開放を可としたことを特徴とする掃
除口付ベンド管。 A slightly thick ring-shaped seat is attached to the periphery of the window drilled in the outer curved part of the bent pipe, a plurality of blind holes are bored at intervals around the top surface of the seat, and a ball joint is connected to each blind hole. At the same time, the bolts with the ball joints are slid together with the ball joints, each blind hole is recessed on the side of the seat plate, and the bolts with the ball joints can be rolled cartwheel through the recesses, and the window is fitted into the ring shape. It is closed with a lid having a flange that is closed to the upper surface of the seat and a plug that is tightly fitted into the window when the lid is closed, and a bolt that corresponds to the blind hole is inserted into the periphery of the flange of the lid. A notch is provided for the ball joint, and the bolt with the ball joint is inserted into the notch so that it can stand up on the flange, and an eye nut is screwed onto the bolt that is erected onto the flange, and the bolt is placed on the upper surface of the flange. Once fixation is possible, tighten the flange of the lid between the eye nut and the ring-shaped seat plate using the turning screw of the eye nut, and then loosen the eye nut and turn the bolt with the ball joint in the radial direction. A bent pipe with a cleaning opening, characterized in that the lid can be opened.