JPH0449577Y2 - - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） 本考案は流体の静止或るいは流速によつて揺動
するフラツパーを軸支し、流体の静止又は流速を
検出するフラツパー式ワイパー付きサイトグラス
に係るものである。[Detailed description of the invention] (Industrial application field) The present invention is a sight glass with a flapper type wiper that pivots on a flapper that swings depending on the stationary state or flow velocity of the fluid, and detects the stationary state or flow velocity of the fluid. This is related to.

（従来の技術） 実公昭50−43337号公報に示すように、流体を
通すサイトグラス筺体の側腹に設けた覗き窓にグ
ラス板を固定し、内部に流体の速さによつて揺動
角度を変化するフラツパーを軸支したサイトグラ
スにおいて、フラツパーと全く機構的関係のない
払拭片を設けた回転軸をサイトグラス筺体の外部
に突出し、必要なときのみに回転軸を内部に押し
込んで払拭片をグラス内面に当ててから、回転軸
の回転によりグラス内面に付着した水あか等を拭
い取る構成はすでに公知であるが、フラツパーを
流体によつて忠実に揺動させるには払拭片及び回
転軸が邪魔になるから、使わないときにはフラツ
パーの揺動運動を妨げない位置に退避させる必要
があり、このために回転軸及び払拭片の摺動移動
量を大きく取らねばならなくなつて、サイトグラ
ス筺体を大きくするか、又はフラツパーの巾を小
さくしなければならない欠点がある。(Prior art) As shown in Japanese Utility Model Publication No. 50-43337, a glass plate is fixed to a viewing window provided on the side of a sight glass housing through which fluid passes, and the swing angle is adjusted depending on the velocity of the fluid inside. In a sight glass that pivotally supports a flapper that changes the temperature, a rotating shaft equipped with a wiping piece that has no mechanical relationship with the flapper is protruded outside the sight glass housing, and the rotating shaft is pushed inside only when necessary to remove the wiping piece. It is already known that the flapper is applied to the inner surface of the glass and then the rotating shaft is rotated to wipe away water scale etc. that has adhered to the inner surface of the glass. Because it gets in the way, when it is not in use, it is necessary to move it to a position that does not interfere with the swinging movement of the flapper, and this requires a large amount of sliding movement for the rotating shaft and wiping piece, making it difficult to move the sight glass housing. There is a drawback that the width of the flapper must be made larger or the width of the flapper must be made smaller.

（本考案が解決しようとする問題点） 本考案はフラツパーと払拭片を狭いサイトグラ
ス筺体内空に夫々独立した機能を持たせて設ける
ことによる製作上及び作動上の制約を除き、フラ
ツパー自体を必要なときに払拭作動体に転換して
使用できるようにすることを解決しようとする問
題点としているものである。(Problems to be Solved by the Present Invention) The present invention eliminates manufacturing and operational constraints caused by providing the flapper and the wiping piece inside the narrow sight glass housing with independent functions, and eliminates the flapper itself. The problem to be solved is to enable the wiping body to be used by converting it into a wiping body when necessary.

（問題点を解決するための手段） 本考案は前項に述べた問題点を具体的に解決す
ることを目的とするものであつて、サイトグラス
筺体の側腹に覗き窓を設け、その覗き窓にグラス
板を固定し、内部に流体の速さによつて揺動角を
変化するフラツパーを軸支したサイトグラスにお
いて、フラツパーのグラス板内面に対応する側縁
を柔軟部材とし且つ該フラツパーを軸方向にガタ
を生じさせて移動できるように軸支し、そのフラ
ツパーのガラス内面と反対側の側縁に係合片を設
け、その係合片に対応させて筺体に出入自由な摺
動軸を設け、該軸の係合片と対応する内端部に該
軸の筺体内部えの摺動により前記係合片を挟んで
連結する連結部を設けたことを特徴とするフラツ
パー式ワイパー付きサイトグラスに係るものであ
る。(Means for solving the problem) The purpose of the present invention is to specifically solve the problem mentioned in the previous section. In this sight glass, a glass plate is fixed to the glass plate, and a flapper whose swing angle changes depending on the velocity of the fluid is pivotally supported inside the sight glass. The flapper is pivoted so that it can be moved with play in the direction, an engaging piece is provided on the side edge opposite to the inner surface of the glass, and a sliding shaft that can freely move in and out of the housing is provided in correspondence with the engaging piece. A sight glass with a flap type wiper, characterized in that a connecting part is provided at an inner end portion of the shaft corresponding to the engaging piece, and is connected by sliding the engaging piece inside the housing of the shaft, sandwiching the engaging piece. This is related to.

本考案の好適な実施例を次項に説明する。 A preferred embodiment of the invention is described in the following section.

（実施例） １は本考案を施したフラツパー式ワイパー付き
サイトグラス筺体であつて、その両側の側腹に窓
孔２，３を設け、一方の窓孔２には外側からガラ
ス板４を当て、該ガラス板４と窓孔２に取付ける
枠片５をねじ６により筺体１に締付けて覗き窓７
を構成する。(Example) 1 is a sight glass housing with a flapper type wiper according to the present invention, and window holes 2 and 3 are provided on both sides of the housing, and a glass plate 4 is applied to one window hole 2 from the outside. , the glass plate 4 and the frame piece 5 attached to the window hole 2 are tightened to the housing 1 with screws 6 to form the viewing window 7.
Configure.

他方の窓孔３には蓋板８を当て、該蓋板８と枠
片９とをねじ１０により筺体１に固定して内部に
フラツパー室１１を構成する。 A cover plate 8 is placed on the other window hole 3, and the cover plate 8 and frame piece 9 are fixed to the housing 1 with screws 10 to form a flapper chamber 11 inside.

１３はフラツパー室１１の内部にねじ１５によ
り取付けて軸支腕対１４，１４をフラツパー室１
１の内部まで突出する一方の管１２の内部外側に
突出させた軸支片であつて、フラツパー１９に設
けた軸管部２０を前記の軸支腕対１４，１４に通
した軸子１６に、軸支腕対１４，１４の間で軸子
１６に沿つて少しガタ動きを生ずるようにして揺
動自由に嵌める。フラツパー１９と軸支片１３と
には軸子１６に巻きつけたばね１８の両端をか
け、そのばね１８の弾力により前記の一方の管１
２の開口を塞ぐ位置に接触させ、且つ一側の端縁
２１をガラス板４の内面に対応させる。 13 is attached to the inside of the flapper chamber 11 with a screw 15, and the pivot arm pair 14, 14 is attached to the flapper chamber 1.
1, which is a shaft support piece that protrudes to the inside and outside of one tube 12, and which is provided on the flapper 19, and is attached to the shaft member 16 through which the shaft tube portion 20 provided on the flapper 19 is passed through the shaft support arm pair 14, 14. , the pair of shaft support arms 14, 14 are fitted so that they can swing freely with a slight play along the shaft 16. Both ends of a spring 18 wound around the shaft 16 are applied to the flapper 19 and the shaft support piece 13, and the elasticity of the spring 18 causes one of the pipes 1
2, and the edge 21 on one side corresponds to the inner surface of the glass plate 4.

フラツパー１９には前記側縁２１から突出する
柔軟材２３を裏面に設け、柔軟材２３をフラツパ
ー１９に固定する板を他側縁２２に突出させた係
合片２４を形成する。柔軟材２３はガラス板４の
内面に接触できるようにしたものである。 The flapper 19 is provided with a flexible material 23 protruding from the side edge 21 on its back surface, and a plate for fixing the flexible material 23 to the flapper 19 is formed with an engagement piece 24 protruding from the other side edge 22. The flexible material 23 is designed to be able to come into contact with the inner surface of the glass plate 4.

蓋板８と枠片９にはフラツパー室１１から外部
に突出する摺動軸２５を通し、フラツパー室１１
に臨む内端に、叉状に形成すると共に上側の片２
７を少し長くした連結部２６を設け、外側にハン
ドル２９を取付ける。 A sliding shaft 25 projecting outward from the flapper chamber 11 is passed through the lid plate 8 and the frame piece 9, and the sliding shaft 25 is inserted into the flapper chamber 11.
The upper piece 2 is formed into a forked shape at the inner end facing the
A connecting part 26 is provided by making 7 a little longer, and a handle 29 is attached to the outside.

本実施例はハンドル２９によつて摺動軸２５を
フラツパー室１１の内部に押し、連結部２６の溝
２８を、流体の流れが止まつて一方の管１２にば
ね１８の弾力で接するフラツパー１９の係合片２
４に嵌め連結し、かつフラツパー１９を軸子１６
上で少し押して柔軟材２３をガラス板４の内面に
圧接し、ハンドル２９の回転と共にフラツパー１
９を連結部２６の連結により軸子１６を中心にし
て回転し、柔軟材２３によりガラス板４の内面に
付着した水あかから拭い取る清掃を行う。又、摺
動軸２５をハンドル２９により外部に引出すと係
合片２４は溝２８から外れて、第４図に示すよう
に片２７のみが係合片２４に対応し、フラツパー
１９の流体の速度により管１２の管口を離れる方
向への揺動が自由になる。 In this embodiment, the sliding shaft 25 is pushed into the flapper chamber 11 by the handle 29, and the groove 28 of the connecting portion 26 is moved between the flapper 19, which contacts one of the pipes 12 by the elasticity of the spring 18, when the fluid flow stops. Engagement piece 2
4 and connect the flapper 19 to the shaft 16.
The soft material 23 is pressed against the inner surface of the glass plate 4 by pressing it slightly at the top, and as the handle 29 is rotated, the flapper 1 is
9 is rotated around the axis 16 by connection of the connecting portion 26, and cleaning is performed by wiping off water scale adhering to the inner surface of the glass plate 4 using the soft material 23. Furthermore, when the sliding shaft 25 is pulled out by the handle 29, the engaging piece 24 is removed from the groove 28, and only the piece 27 corresponds to the engaging piece 24, as shown in FIG. This allows the tube 12 to swing freely in the direction away from the tube opening.

（作用） 本考案はフラツパーを常軌のように流体の流れ
によつて揺動するものであるが、その流体の流れ
が止まつてフラツパー室１１内の管１２の管口を
閉じる角度になつたとき（又は流体が流動中にお
いても摺動軸２５を回転させて片２７を係合片２
４に接触させ）、摺動軸２５を押して連結部２６
をフラツパー１９の係合片２４に係合し、摺動軸
２５の回転により、フラツパー自体の柔軟材２３
によつてガラス板４の内面を拭きとり、それが終
わつたら摺動軸２５を外方に移動させて、フラツ
パー１９が本来の揺動を行うようにする。(Function) In the present invention, the flapper is oscillated by the flow of fluid in a normal manner, but when the fluid flow stops and the angle is reached to close the mouth of the pipe 12 in the flapper chamber 11. (Alternatively, even when the fluid is flowing, the sliding shaft 25 can be rotated to move the piece 27 to the engaging piece 2.
4), push the sliding shaft 25 and connect the connecting part 26.
is engaged with the engagement piece 24 of the flapper 19, and by rotation of the sliding shaft 25, the flexible member 23 of the flapper itself is engaged with the engaging piece 24 of the flapper 19.
After wiping the inner surface of the glass plate 4 with the wiper, the sliding shaft 25 is moved outward so that the flapper 19 can perform its original swinging motion.

（効果） 本考案は、フラツパー１９のガラス板４の内面
に対応する側縁を柔軟部材とし且つ該フラツパー
１９を軸方向にガタを生じさせて移動できるよう
に軸支し、そのフラツパーのガラス板４の内面と
反対側の側縁に係合片２４を設け、その係合片２
４に対応させて筺体に出入自由な摺動軸２５を設
け、該軸の係合片と対応する内端部に該軸の筺体
内部えの摺動により前記係合片２４を挟んで連結
する連結部を備えているから、サイトグラス筺体
１の内部に、従来のように作用的には互いに無関
係はフラツパー１９と外部に引出した軸部をもつ
払拭体とを設ける必要がなく、しかも両者の作用
を兼用させ得る効果をもつ。(Effects) In the present invention, the side edge of the flapper 19 corresponding to the inner surface of the glass plate 4 is made of a flexible member, and the flapper 19 is pivotally supported so as to be movable with play in the axial direction, and the glass plate of the flapper is An engagement piece 24 is provided on the side edge opposite to the inner surface of the engagement piece 2.
4, a sliding shaft 25 that can freely move in and out is provided in the housing, and the shaft is connected to the inner end corresponding to the engaging piece by sliding the engaging piece 24 inside the housing. Since the connecting portion is provided, there is no need to provide inside the sight glass housing 1 the flapper 19 and the wiping body having the shaft portion pulled out to the outside, which are functionally unrelated to each other as in the conventional case. It has the effect of having a dual function.

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

添付図面は本考案の実施例を説明するもので、
第１図は一部切欠正面図、第２図は第１図Ａ−Ａ
線側面図、第３図は一部の部品の斜視図、第４図
は摺動軸２５を外方に引いたときの係合片２４を
連結部の開示を示した側面図である。 １……サイトグラス筺体、４……ガラス板、７
……覗き窓、８……蓋板、１１……フラツパー
室、１２……管、１３……軸支片、１６……軸
子、１８……ばね、１９……フラツパー、２３…
…柔軟材、２４……係合片、２５……摺動軸、２
６……連結部、２９……ハンドル。 The attached drawings illustrate embodiments of the present invention.
Figure 1 is a partially cutaway front view, Figure 2 is Figure 1 A-A
FIG. 3 is a perspective view of some parts, and FIG. 4 is a side view showing the connecting portion of the engaging piece 24 when the sliding shaft 25 is pulled outward. 1...Sight glass housing, 4...Glass plate, 7
...Peep window, 8...Lid plate, 11...Flapper chamber, 12...Pipe, 13...Shaft support piece, 16...Shaft, 18...Spring, 19...Flapper, 23...
... Soft material, 24 ... Engagement piece, 25 ... Sliding shaft, 2
6...Connection part, 29...Handle.

Claims (1)

【実用新案登録請求の範囲】 サイトグラス筺体の側腹に覗き窓を設け、その
覗き窓にグラス板を固定し、内部に流体の速さに
よつて揺動角を変化するフラツパーを軸支したサ
イトグラスにおいて、 フラツパーのグラス板内面に対応する側縁を柔
軟部材とし且つ該フラツパーを軸方向にガタを生
じさせて移動できるように軸支し、そのフラツパ
ーのガラス板内面と反対側の側縁に係合片を設
け、その係合片に対応させて筺体に出入自由な摺
動軸を設け、該軸の係合片と対応する内端部に該
軸の筺体内部えの摺動により前記係合片を挟んで
連結する連結部を設けたことを特徴とするフラツ
パー式ワイパー付きサイトグラス。[Scope of claim for utility model registration] A viewing window is provided on the side of the sight glass housing, a glass plate is fixed to the viewing window, and a flapper whose swing angle changes depending on the velocity of the fluid is pivotally supported inside. In the sight glass, the side edge of the flapper corresponding to the inner surface of the glass plate is made of a flexible member, and the flapper is supported so as to be movable with play in the axial direction, and the side edge of the flapper opposite to the inner surface of the glass plate is used. is provided with an engaging piece, and a sliding shaft that can freely move in and out of the housing is provided in correspondence with the engaging piece, and the inner end of the shaft corresponding to the engaging piece is slidable inside the housing. A sight glass with flap type wiper characterized by having a connecting part that connects with an engaging piece in between.