JPS6243243Y2 - - Google Patents

Description

【考案の詳細な説明】 この考案はガス湯沸器の水抜き装置に関する。[Detailed explanation of the idea] This invention relates to a water draining device for a gas water heater.

従来のこの種の水抜き装置は第１図に示したよ
うに、例えば水圧応動装置のダイヤフラム室５′
の最底部に通ずる水抜き孔６′にシール材１′を介
して水抜き栓A′をねじ込む構造となつているた
めその螺挿、抜脱操作が面倒であるばかりでな
く、シール材及びねじ部の損傷が著しいため耐久
性に欠けるとともに、早期に水洩れを惹起するこ
とも多い欠点があつた。 As shown in FIG. 1, a conventional water draining device of this type is, for example, a diaphragm chamber 5' of a hydraulic response device.
Since the drain plug A' is screwed into the drain hole 6' leading to the bottom of the drain hole 6' through the sealing material 1', not only is it troublesome to insert and remove the screw, but also the sealing material and screws are troublesome. Not only did it lack durability due to significant damage to its parts, but it also had the disadvantage of often causing water leaks at an early stage.

この考案はかかる欠点の解消を目的としてなさ
れたもので、くさび体を挿入、抜脱することで水
抜き栓体の脱着を可能とした構造とすることによ
りその操作の簡便化と、ねじ体を使用しないこと
による錆や損傷及び水洩れの少ない耐久性にすぐ
れた水抜き装置を提供するものである。 This invention was made with the aim of eliminating such drawbacks, and by creating a structure in which the drain plug body can be attached and detached by inserting and removing the wedge body, it is possible to simplify the operation and to remove the screw body. To provide a water draining device which is highly durable and has little rust, damage and water leakage due to non-use.

以下この考案による水抜き装置の一実施例を図
面に基づき具体的に説明すると、第２図及び第３
図において、Ａは合成樹脂等の復元力をもつた有
底筒状の水抜き栓体であつて、その上方外周部に
シール材例えばシール用Ｏリング１を嵌着して備
え、下方外周部に係合凸起２を、下方内周部には
拡開凸起３を、また、下端に操作つまみ用鍔９を
一体形成し、かつ下方周部に２つ以上の縦方向の
切込み溝４を穿つてその下方部を拡開可能となし
ている。Ｂは水圧応動装置のダイヤフラム室５等
の最底部に穿つた水抜き導孔１０に連通し、かつ
上記水抜き栓体Ａが挿脱できる水抜き孔６をもつ
水抜き短管で、筐体Ｅに一体形成されており、該
水抜き孔６に水抜き栓体Ａを挿嵌したときそのシ
ール用Ｏリング１が水密を保つて嵌着され、かつ
その抜脱も容易に行え、しかも、水抜き栓体Ａの
下方部が拡開されたときはその係合凸起２が係合
し、拡開が解かれたときはその係合が外れる係合
凹溝７を下方内周部に有している。Ｃは水抜き栓
体Ａの下方部を拡開せしめるための先細状のくさ
び体で、水抜き栓体Ａの拡開凸起３の内面対向距
離より大きい外面対向距離を有する突条８を一体
形成し、下端には操作つまみ用鍔１１を備えてい
る。 Hereinafter, one embodiment of the water draining device according to this invention will be explained in detail based on the drawings.
In the figure, A is a bottomed cylindrical drain plug made of synthetic resin or the like with restoring force, and a sealing material such as a sealing O-ring 1 is fitted onto the upper outer periphery of the drain plug, and a lower outer periphery An engaging protrusion 2 is formed on the lower inner periphery, an expanding protrusion 3 is formed on the lower inner periphery, a flange 9 for an operation knob is integrally formed on the lower end, and two or more vertical grooves 4 are formed on the lower periphery. The lower part of the opening can be expanded. B is a short water drain pipe which communicates with a water drain hole 10 bored at the bottom of the diaphragm chamber 5 etc. of the hydraulic response device and has a water drain hole 6 into which the water drain plug A can be inserted and removed; E, and when the drain plug A is inserted into the drain hole 6, the sealing O-ring 1 is fitted while maintaining watertightness, and it can be easily removed and removed. When the lower part of the drain plug body A is expanded, the engagement protrusion 2 is engaged, and when the expansion is released, the engagement groove 7 is disengaged. have. C is a tapered wedge body for expanding the lower part of the drain plug body A, and is integrated with a protrusion 8 having an outer facing distance that is larger than an inner facing distance of the expanding protrusion 3 of the drain plug body A. The lower end is provided with a flange 11 for an operation knob.

上記構成において、ガス湯沸器の使用時は水抜
き短管Ｂの水抜き孔６は水抜き栓体Ａにより閉塞
されている。すなわち、水抜き孔６に水抜き栓体
Ａを下方より一定の位置まで挿入すると、その上
方外周部のシール用Ｏリング１が水抜き孔６に水
密を保つて嵌着されるとともに、下方外周部の係
合凸起２は水抜き短管Ｂの係合凹溝７と同一位置
に位置する。そこで、この水抜き栓体Ａにくさび
体Ｃを下方から一定の位置まで挿入せしめること
でくさび体Ｃの突条８に水抜き栓体Ａの拡開凸起
３がのり上げてその下方部を押し拡げ係合凸起２
を係合凹溝７に押圧係合し水抜き栓体Ａを水抜き
短管Ｂに抜脱しないよう保持せしめている（第２
図参照）。尚、この際くさび体Ｃの先端が水抜き
栓体Ａの底壁に当接するよう設定するとよい。 In the above configuration, the drain hole 6 of the short drain pipe B is closed by the drain plug A when the gas water heater is in use. That is, when the drain plug A is inserted into the drain hole 6 from below to a certain position, the sealing O-ring 1 on the upper outer periphery is fitted into the drain hole 6 in a watertight manner, and the lower outer periphery The engagement protrusion 2 of the part is located at the same position as the engagement groove 7 of the short water drain pipe B. Therefore, by inserting the wedge body C into the drain plug A from below to a certain position, the expanding protrusion 3 of the drain plug A rides on the protrusion 8 of the wedge body C, and the lower part thereof is lifted up. Push-spread engagement protrusion 2
is press-engaged with the engagement groove 7 to hold the drain plug A so that it does not slip out into the short drain pipe B (the second
(see figure). At this time, it is preferable to set the tip of the wedge body C so that it comes into contact with the bottom wall of the drain plug body A.

次に、ガス湯沸器の使用を停止して水抜きを行
う場合は、まず、操作つまみ用鍔１１を握つてく
さび体Ｃを下方へ引き抜くと、その突条８と拡開
凸起３の当接関係が外れるため突条８による水抜
き栓体Ａの拡開は解かれ係合凸起２と係合凹溝７
との押圧係合が外れるからその後水抜き栓体Ａを
下方へ引張れば、これが水抜き短管Ｂの水抜き孔
６から容易に抜脱できる。しかして、水圧応動装
置のダイヤフラム室５等の滞留水は水抜き導孔１
０から水抜き孔６を介して器外へ排水されるので
ある。 Next, when you want to stop using the gas water heater and drain the water, first grasp the operation knob collar 11 and pull out the wedge body C downward, so that the protrusion 8 and the expansion protrusion 3 Since the abutting relationship is removed, the expansion of the drain plug body A by the protrusion 8 is released, and the engagement protrusion 2 and the engagement groove 7 are released.
After that, by pulling the drain plug body A downward, it can be easily removed from the drain hole 6 of the short drain pipe B. Therefore, the accumulated water in the diaphragm chamber 5, etc. of the hydraulic response device is removed from the water drain hole 1.
The water is drained from the container through the drain hole 6.

水抜き完了後、水抜き短管Ｂに対する水抜き栓
体Ａとくさび体Ｃの組付けは水抜き時とは逆の操
作で簡単に行えること先に説明したとおりであ
る。 After draining the water, as described above, the drain plug body A and the wedge body C can be easily assembled to the short drain pipe B by reversing the operation for draining water.

この考案は以上説明したように、水抜き短管に
対し水抜き栓体とくさび体を挿入、抜脱するだけ
で水抜き孔の開閉が適確に行える構造としたから
ねじ体を使用しないことと相まつてその操作が簡
易で使い勝手がよく、錆や損傷及び水洩れも少な
いので耐久性にもすぐれた水抜き装置が得られる
ものである。 As explained above, this design has a structure in which the drain hole can be opened and closed accurately by simply inserting and removing the drain plug and wedge body into the short drain pipe, so no screw body is used. In combination with this, it is possible to obtain a water draining device that is easy to operate, easy to use, and has excellent durability because it is less prone to rust, damage, and water leakage.

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

第１図は従来例の断面図、第２図はこの考案の
一実施例を示す断面図、第３図は水抜き栓とくさ
び体の斜視図である。 １……シール用Ｏリング、２……係合凸起、３
……拡開凸起、４……切込み溝、Ａ……水抜き栓
体、５……ダイヤフラム室、６……水抜き孔、７
……係合凹溝、Ｂ……水抜き短管、８……突条、
Ｃ……くさび体。 FIG. 1 is a sectional view of a conventional example, FIG. 2 is a sectional view showing an embodiment of this invention, and FIG. 3 is a perspective view of a drain plug and a wedge body. 1... O-ring for sealing, 2... Engagement protrusion, 3
... Expansion convexity, 4 ... Notch groove, A ... Drain plug body, 5 ... Diaphragm chamber, 6 ... Drain hole, 7
...Engagement groove, B...Drain short pipe, 8...Protrusion,
C...Wedge body.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 上方外周部にシール材１を備え下方の外周部に
は係合凸起２を内周部に拡開凸起３を形成しかつ
下方周部に縦方向の切込み溝４を穿つて下方部を
拡開可能とせる有底筒状の復元力をもつた水抜き
栓体Ａと、ガス湯沸器の水抜き孔６に水抜き栓体
Ａを挿脱したときそのシール材１が水密を保つて
嵌脱しかつその下方内周部には水抜き栓体Ａの係
合凸起２が係脱する係合凹溝７を穿つた水抜き短
管Ｂと、水抜き短管Ｂに挿嵌せる水抜き栓体Ａに
挿入したとき水抜き栓体Ａの拡開凸起３を介して
下方部をその復元力に抗して押し拡げ係合凸起２
を係合凹溝７に係合せしめる突条８をもつ先細状
のくさび体Ｃとからなるガス湯沸器の水抜き装
置。 A sealing material 1 is provided on the upper outer periphery, an engaging protrusion 2 is formed on the lower outer periphery, and an expanding protrusion 3 is formed on the inner periphery, and a vertical cut groove 4 is bored in the lower periphery to form the lower part. A water drain plug A has a bottomed cylindrical shape that can be expanded and has a restoring force, and a sealing material 1 thereof maintains watertightness when the drain plug A is inserted into and removed from a water drain hole 6 of a gas water heater. and a short drain pipe B, which has an engagement groove 7 in its lower inner periphery into which the engagement protrusion 2 of the drain plug A engages and disengages, and is inserted into the short drain pipe B. When inserted into the drain plug body A, the lower part is pushed and expanded by the expanding projection 3 of the drain plug body A against its restoring force, and the engagement projection 2 is inserted into the drain plug body A.
A water draining device for a gas water heater, comprising a tapered wedge body C having a protrusion 8 that engages with an engagement groove 7.