JP2515861Y2 - Water drain plug mounting structure for electric water heater - Google Patents
Water drain plug mounting structure for electric water heaterInfo
- Publication number
- JP2515861Y2 JP2515861Y2 JP1989151793U JP15179389U JP2515861Y2 JP 2515861 Y2 JP2515861 Y2 JP 2515861Y2 JP 1989151793 U JP1989151793 U JP 1989151793U JP 15179389 U JP15179389 U JP 15179389U JP 2515861 Y2 JP2515861 Y2 JP 2515861Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- drain plug
- pipe
- casing
- water drain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Domestic Plumbing Installations (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、たとえば洗面化粧台等のキャビネットに組
み込まれる電気温水器に係り、特に凍結防止用として配
管系に設ける水抜き栓の取付け構造に関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an electric water heater incorporated in a cabinet such as a bathroom vanity, and particularly to a mounting structure of a drain plug provided in a piping system for preventing freezing. .
湯水混合栓や洗髪用のハンドシャワー等を備えた洗面
化粧台では、簡易な給湯設備として電気温水器が広く用
いられるようになった。この電気温水器はキャビネット
の中に組み込める程度の大きさであり、建屋からの給水
管を接続して据え付けられる。Electric water heaters have come to be widely used as a simple hot water supply facility in a vanity equipped with a hot and cold water mixer, a hand shower for washing hair, and the like. This electric water heater is of a size that can be installed in a cabinet, and is installed by connecting a water supply pipe from the building.
第５図は洗面器の下に電気温水器を組み込んだ従来例
を示す概略正面図である。FIG. 5 is a schematic front view showing a conventional example in which an electric water heater is incorporated under a washbasin.
図において、電気温水器はケーシング50によってカバ
ーされ、内部には加熱タンク50aを収納している。建屋
の給水配管に組み込んだ止水栓51からの給水管52を加熱
タンク50aに接続し、洗面器53に設ける湯水混合栓等へ
この加熱タンク50aから給湯管54を配管すると共に給水
管52に直結した水用供給管55が設けられている。In the figure, the electric water heater is covered by a casing 50, and a heating tank 50a is housed inside. Connect the water supply pipe 52 from the water stopcock 51 incorporated in the water supply pipe of the building to the heating tank 50a, and connect the hot water supply pipe 54 from the heating tank 50a to the hot water supply mixer provided in the washbasin 53 and the water supply pipe 52. A water supply pipe 55 directly connected is provided.
このような配管では、給水管52を加熱タンク50aに接
続する継手56として、ユニオン継手やソケット・ニップ
ル等が簡易なものとして利用されている。In such a pipe, a union joint, a socket, a nipple, or the like is used as a simple joint 56 for connecting the water supply pipe 52 to the heating tank 50a.
ところで、電気温水器を備えた設備では建屋の給水配
管からこの電気温水器をバイパスのように通過させて給
水するので、寒冷地等での凍結防止対策が必要となる。
このため、たとえば給水管52と電気温水器との継手を兼
ねて水抜き栓を組み込むことが一つの有効な手段として
考えられる。By the way, in a facility equipped with an electric water heater, water is supplied from a water supply pipe of a building by passing through the electric water heater like a bypass, so that it is necessary to take measures to prevent freezing in cold regions.
Therefore, for example, incorporating a water drain plug also as a joint between the water supply pipe 52 and the electric water heater is considered as one effective means.
第６図は水抜き栓57による継手構造を示す斜視図であ
り、水抜き栓57は給水管52を加熱タンク50aに連結する
継手部57aとその中途から突き出した排水筒57bを備え、
更にこの排水筒57の中に内部流路を開閉するスピンドル
58をねじ込んだものである。FIG. 6 is a perspective view showing a joint structure with a water drain plug 57, which has a joint portion 57a for connecting the water supply pipe 52 to the heating tank 50a and a drain pipe 57b protruding from the middle thereof.
Furthermore, a spindle that opens and closes the internal flow path in the drain 57
58 is screwed in.
水抜き栓57の組み込みは、継手部57aの一端に設けた
テーパネジ57cを加熱タンク50aの連結部にねじ込んで一
体化した後、給水管52に設けた袋ナット52aを他端のテ
ーパネジ57dに螺合させる要領で行う。ところが、水抜
き栓57は排水筒57bを下又は斜め下方に向く姿勢とする
必要があり、ユニオン継手やソケット等のように姿勢を
任意にとることができない。一方、テーパネジ57cを加
熱タンク50aにねじ込んだときに水抜き栓57の姿勢を適
切にしていても、給水管52の袋ナット52をテーパネジ57
dに一体化するときには、水抜き栓57が共回りして姿勢
が変わってしまう。このため実際の作業ではパイプレン
チ等で水抜き栓57を受けて袋ナット52aを締め上げる必
要がある。したがって、特にキャビネットの中に電気温
水器を据え付けるような場合では作業し難くいし、排水
筒57bの姿勢にも誤差を生じることが多い。また、水抜
き栓57の姿勢だけに気を取られると、袋ナット52aの締
め上げ不良等によって漏水を発生しやすいという問題も
ある。To incorporate the water drain plug 57, a taper screw 57c provided at one end of the joint portion 57a is screwed into the connecting portion of the heating tank 50a to be integrated, and then a cap nut 52a provided at the water supply pipe 52 is screwed into the taper screw 57d at the other end. Do it in the way that they are combined. However, the water drain plug 57 needs to have a posture in which the drain cylinder 57b is directed downward or obliquely downward, and cannot take any posture like a union joint and a socket. On the other hand, even if the posture of the water drain plug 57 is set properly when the taper screw 57c is screwed into the heating tank 50a, the cap nut 52 of the water supply pipe 52 is screwed into the taper screw 57.
When it is integrated with d, the water drain plug 57 rotates together and the posture changes. Therefore, in the actual work, it is necessary to receive the water drain plug 57 with a pipe wrench or the like and tighten the cap nut 52a. Therefore, it is difficult to work, especially when the electric water heater is installed in the cabinet, and the attitude of the drain 57b often causes an error. There is also a problem that water leakage is likely to occur due to improper tightening of the cap nut 52a and the like if the user is distracted only by the posture of the water drain plug 57.
そこで、本考案は、水抜き栓の組み込みが簡単に行え
ると同時にその姿勢を適切なものに設定できるようにす
ることを目的とする。Therefore, an object of the present invention is to make it possible to easily install the water drain plug and at the same time to set the posture thereof to an appropriate one.
本考案は、電気温水器のケーシングから内部配管を突
き出し、該突き出した配管の管端に水抜き栓を雄ネジ・
雌ネジ締結によって接続すると共に該水抜き栓に建屋側
からの給水管を接続する水抜き栓の取付け構造であっ
て、前記水抜き栓が前記ケーシングに対向する端部にフ
ランジを設けると共に該フランジに拘束孔を開け、前記
ケーシングに前記拘束孔に嵌まり込む位置決めピンを設
けたことを特徴とする。According to the present invention, the internal pipe is projected from the casing of the electric water heater, and a water drain plug is attached to the end of the projected pipe with a male screw or a male screw.
A structure for mounting a water drain plug for connecting by water screw fastening and connecting a water supply pipe from the building side to the water drain plug, wherein the water drain plug is provided with a flange at an end facing the casing, and the flange is provided. A constraining hole is formed in the casing, and a positioning pin that fits into the constraining hole is provided in the casing.
また、ケーシングは洗面化粧台等のキャビネットの内
部に収納したものとし、水抜き栓には雄ネジを設けと給
水管にはこの雄ネジに螺合する袋ナットを設けて連結し
たものとすることもできる。The casing shall be stored inside a cabinet such as a vanity, and the drain plug shall be provided with a male screw and the water supply pipe shall be provided with a cap nut to be screwed to this male screw. You can also
水抜き栓をケーシングの内部配管に接続するときは、
雄ネジ・雌ネジ締結なので水抜き栓は内部配管の軸線回
りに回転しながら一体化される。そして、水抜き栓の適
切な姿勢に対応するような位置決めピンの配置としてお
き、内部配管との接続後にこの位置決めピンを拘束孔に
差し込んでケーシングに固定すれば、水抜き栓は回転す
ることなく一定の姿勢を保持する。このため、給水側の
配管に袋ナットやソケット等で接続する場合でも、水抜
き栓はその姿勢を変えることはない。When connecting the drain plug to the inner pipe of the casing,
Since the male and female screws are fastened, the water drain plug is integrated while rotating around the axis of the internal pipe. Then, the positioning pin is arranged so as to correspond to an appropriate posture of the water drain plug, and after the positioning pin is inserted into the restraint hole and fixed to the casing after connecting with the internal pipe, the water drain plug does not rotate. Hold a certain posture. Therefore, even when connecting to the pipe on the water supply side with a cap nut or socket, the posture of the water drain plug does not change.
また、電気温水器のケーシングを洗面化粧台等のキャ
ビネットの内部に収納するものでは、電気温水器への給
水配管だけでなく洗面器からの排水管等の配管も含まれ
るので、据え付けの際には狭い空間での配管作業とな
る。これに対し、給水管側に袋ナットを取り付けて接続
する場合、この袋ナットに工具を掛けて回す作業となる
が、水抜き栓は位置決めピンによってその姿勢が拘束さ
れているので、袋ナットが共回りすることなく連結する
ことができ、狭い作業空間であっても容易に水抜き栓に
対する配管が行える。In addition, when the casing of the electric water heater is stored inside a cabinet such as a vanity, it includes not only the water supply pipe to the electric water heater but also the drain pipe from the wash basin. Is a piping work in a narrow space. On the other hand, when attaching and connecting the cap nut to the water supply pipe side, it is a work to hang a tool on the cap nut and turn it, but since the position of the water drain plug is restricted by the positioning pin, the cap nut is They can be connected without co-rotating, and piping for the water drain plug can be easily performed even in a small work space.
第１図は本考案の水抜き栓の取付け構造を示す要部の
断面図であり、第４図に示すようにキャビネットに電気
温水器を据え付けた場合を例として説明する。また、第
２図は水抜き栓を軸線方向に見た図及び第３図は要部の
斜視図である。なお、第１図は説明を簡単にするため
に、第２図のＩ−Ｉ線,II−II線及びIII−III線による
部分断面を合成したものとして示している。FIG. 1 is a sectional view of an essential part showing a mounting structure of a water drain plug according to the present invention. The case where an electric water heater is installed in a cabinet as shown in FIG. 4 will be described as an example. 2 is an axial view of the water drain plug, and FIG. 3 is a perspective view of an essential part. Note that FIG. 1 shows a partial cross section taken along the line II, II-II, and III-III in FIG. 2 for simplicity of explanation.
第４図において、キャビネット１の上端に洗面器1aが
固定され、洗面器1aには湯水混合栓２が設けられてい
る。湯水混合栓２はスパウト2a及びハンドシャワー2bを
兼備したもので、切換えハンドル2cによってスパウト2a
又はハンドシャワー2bを使い分ける。In FIG. 4, a basin 1a is fixed to the upper end of a cabinet 1, and a basin 1a is provided with a hot and cold water mixing plug 2. The hot and cold water mixing valve 2 has both a spout 2a and a hand shower 2b, and the spout 2a is provided by a switching handle 2c.
Or use the hand shower 2b properly.
キャビネット１の内部には湯水混合栓２に給湯するた
めの電気温水器３が組み込まれている。この電気温水器
３はケーシング3aの内部に加熱タンク3bを収納したもの
で、建屋の給水配管から湯水混合栓２までの配管系がキ
ャビネット１の内部に設けられる。この配管系は、止水
栓４からの給水管５を電気温水器３のケーシング3a内の
連絡管６に接続し、この連絡管６を立ち上げた後再び下
に伸ばして加熱タンク3bの下端に直結すると共に連絡管
６の中途から湯水混合栓２への給水用の分岐管７を設
け、更に加熱タンク3bの上端から湯水混合栓２までを給
湯管８によって接続したものである。Inside the cabinet 1, an electric water heater 3 for supplying hot water to the hot and cold water mixing valve 2 is incorporated. The electric water heater 3 has a heating tank 3b housed in a casing 3a, and a pipe system from the water supply pipe of the building to the hot and cold water mixing tap 2 is provided inside the cabinet 1. This piping system connects the water supply pipe 5 from the water stopcock 4 to the communication pipe 6 in the casing 3a of the electric water heater 3, and after the communication pipe 6 is started up, it is extended downward again to the lower end of the heating tank 3b. A branch pipe 7 for supplying water from the middle of the connecting pipe 6 to the hot and cold water mixing tap 2 is provided, and a hot water feeding pipe 8 is connected from the upper end of the heating tank 3b to the hot and cold water mixing tap 2.
給水管５と連絡管６とは水抜き栓９を継手代わりに利
用して接続されている。またケーシング3a内で立ち上げ
た連絡管６には、減圧弁及び逆止弁を組み込んだバルブ
ユニット10が設けられ、更に分岐管７へ向かう水平管6a
より高いレベルの管端には逃がし弁11が組み込まれてい
る。更に、加熱タンク3bの底部にはドレン3cが設けら
れ、一方、湯水混合栓２にはそのスパウト2a側及びハン
ドシャワー2b側の流路を加熱タンク3bに連通させるため
の水抜き機構（図示せず）がそれぞれ設けられている。The water supply pipe 5 and the connecting pipe 6 are connected using a water drain plug 9 instead of a joint. Further, a valve unit 10 incorporating a pressure reducing valve and a check valve is provided in the connecting pipe 6 started up in the casing 3a, and a horizontal pipe 6a heading for a branch pipe 7 further.
A relief valve 11 is incorporated at the higher level pipe end. Further, a drain 3c is provided at the bottom of the heating tank 3b, while a water draining mechanism (not shown) for connecting the passages on the spout 2a side and the hand shower 2b side of the hot and cold water mixing tap 2 to the heating tank 3b. No) is provided respectively.
第１図のように、水抜き栓９はＴ字状の継手部20の両
端に流入口20a及び流出口20bを設け、それぞれの外周及
び内周に形成した雄ネジ20c及び雌ネジ20dによって給水
管５及び連絡管６に接続される。また、継手部20の中途
から排水筒21を下に突き出し、この中に外部操作可能な
スピンドル22を回転自在にねじ込んでいる。スピンドル
22の上端は継手部20に開けたドレン孔20eを開閉する弁
体22aとして機能させ、この弁体22aの下の周壁を開放す
ると共に下端まで排出路22bを形成している。As shown in FIG. 1, the water drain plug 9 is provided with an inflow port 20a and an outflow port 20b at both ends of a T-shaped joint portion 20, and water is supplied by a male screw 20c and a female screw 20d formed on the outer circumference and the inner circumference, respectively. It is connected to the pipe 5 and the connecting pipe 6. Further, the drain tube 21 is projected downward from the middle of the joint portion 20, and an externally operable spindle 22 is rotatably screwed therein. spindle
The upper end of 22 functions as a valve body 22a that opens and closes the drain hole 20e formed in the joint portion 20, opens the peripheral wall under the valve body 22a, and forms a discharge passage 22b to the lower end.
このような構成により、スピンドル22を回転させて図
示の位置から下げると、弁体22aがドレン孔20eから離れ
てこれを開く。したがって、継手部20の流路はドレン孔
20eからスピンドル22の周壁の開口部を経て排水路22bに
連通し、この排水路22bから水を排出することができ
る。With such a configuration, when the spindle 22 is rotated and lowered from the position shown in the drawing, the valve body 22a separates from the drain hole 20e and opens. Therefore, the flow path of the joint 20 is a drain hole.
Water can be discharged from 20e through the opening of the peripheral wall of the spindle 22 to communicate with the drainage channel 22b.
更に、継手部20の一端にはフランジ20fが設けられて
いる。このフランジ20fは第２図に示すように排水筒21
とは逆方向に延びた形状を持ち、その先端部に拘束孔20
gを開けている。なお、このフランジ20fの前面側には角
形形状とした工具掛り20hが形成されている。Further, a flange 20f is provided at one end of the joint portion 20. This flange 20f is a drain pipe 21 as shown in FIG.
It has a shape that extends in the opposite direction to the
open g. A square tool hook 20h is formed on the front side of the flange 20f.
一方、ケーシング3a内に配管した連絡管６はその管端
をケーシング3aに開けた配管口30から突き出すと共に、
連絡管６に設けたフランジ6bをケーシング3aの内壁に突
き当てている。そして、フランジ6bはビス31によってケ
ーシング3aに固定されている。また、フランジ6bには雌
ネジ6cが設けられこれをケーシング3aに開けた孔32に対
応させている。この孔32には水抜き栓９の位置決めピン
23を差し込み、これをフランジ6bの雌ネジ6cにねじ込ん
で固定している。そして、水抜き栓９は、そのフランジ
20fの拘束孔20gに位置決めピン23が嵌まり込んだ状態で
配置連結されている。なお、位置決めピン23が拘束孔20
gに嵌まり込んだときに排水筒21が前を向き斜め下方の
姿勢となるように、それぞれの部材の位置関係を設定し
ておく。On the other hand, the connecting pipe 6 piped in the casing 3a projects its pipe end from the pipe port 30 opened in the casing 3a, and
A flange 6b provided on the connecting pipe 6 is abutted against the inner wall of the casing 3a. The flange 6b is fixed to the casing 3a with a screw 31. Further, the flange 6b is provided with a female screw 6c, which corresponds to the hole 32 formed in the casing 3a. A positioning pin for the drain plug 9 is provided in this hole 32.
23 is inserted, and this is screwed and fixed to the female screw 6c of the flange 6b. And, the drain plug 9 is the flange
The positioning pin 23 is arranged and connected so as to fit into the restraining hole 20g of 20f. In addition, the positioning pin 23 is
The positional relationship of the respective members is set such that the drain cylinder 21 faces forward and is in an obliquely downward posture when fitted in g.
以上の部材による水抜き栓９の配管は次の要領で行
う。Piping of the water drain plug 9 by the above members is performed as follows.
まず、ケーシング3aの配管口30から突き出した連絡管
６の管端の雄ネジ6dに継手部20の雌ネジ20dを螺合させ
る。継手部20はその軸線回りに回転し、適当な雄ネジ6d
と雌ネジ20dの締め上げが確保された頃を見計らって拘
束孔20gをケーシング3aの孔32に合わせる。次いで、位
置決めピン23を拘束孔20gに差し込み先端の雄ネジ部23a
をフランジ6bの雌ネジ6cにねじ込んで固定する。これに
より、水抜き栓９のフランジ6bは位置決めピン23によっ
てその回転が拘束され、水抜き栓９は第２図の姿勢に保
持される。First, the female screw 20d of the joint portion 20 is screwed into the male screw 6d at the pipe end of the communication pipe 6 protruding from the pipe port 30 of the casing 3a. The joint part 20 rotates around its axis and the appropriate male screw 6d
And when the tightening of the female screw 20d is secured, the restraint hole 20g is aligned with the hole 32 of the casing 3a. Next, the positioning pin 23 is inserted into the restraint hole 20g and the male screw portion 23a at the tip is inserted.
Is screwed into the female screw 6c of the flange 6b to be fixed. As a result, the rotation of the flange 6b of the water drain plug 9 is restricted by the positioning pin 23, and the water drain plug 9 is held in the posture shown in FIG.
水抜き栓９の回転を拘束した後に、給水管５の袋ナッ
ト5aを雄ネジ20cに螺合して締結する。この作業では、
袋ナット5aの回転方向に水抜き栓９も回転しようとする
が、位置決めピン23によってこの回転は阻止される。こ
のため、レンチ等の工具は袋ナット5aだけに掛ければよ
く、水抜き栓９を保持したり反力受けを施す必要はな
い。After restraining the rotation of the water drain plug 9, the cap nut 5a of the water supply pipe 5 is screwed into the male screw 20c and fastened. In this work,
The water drain plug 9 also tries to rotate in the rotation direction of the cap nut 5a, but this rotation is blocked by the positioning pin 23. Therefore, a tool such as a wrench may be hooked only on the cap nut 5a, and it is not necessary to hold the water drain plug 9 or apply a reaction force.
このような要領で配管された水抜き栓９は、位置決め
ピン23によってその姿勢が拘束されているので、袋ナッ
ト5aの締め上げ度に関係なく排水筒21の姿勢を一様に設
定できる。このため、排水筒21の向きを気にすることな
く配管作業でき、しかも施工後も誤差のない施工体が得
られる。Since the position of the water drain plug 9 piped in this manner is restricted by the positioning pin 23, the position of the drain pipe 21 can be set uniformly regardless of the tightening degree of the cap nut 5a. Therefore, the piping work can be performed without paying attention to the direction of the drain cylinder 21, and a construction body having no error even after the construction can be obtained.
なお、配管系の水抜き作業は、湯水混合栓２の水抜き
機構や逃がし弁11を利用して配管内を大気開放し、ドレ
ン3c及び水抜き栓９を開くことによって行えばよい。The drainage work of the piping system may be performed by opening the drain 3c and the drainage stopper 9 by using the drainage mechanism of the hot and cold water mixing stopper 2 and the relief valve 11 to open the inside of the piping to the atmosphere.
また、実施例では先止め式の例について説明したが、
給水操作を電気温水器の上流側で行うようにした元止め
式の電気温水器の場合でも同様な構成とすることができ
る。この場合では、連絡管６を設けずに加熱タンク３に
パイプを接続し、このパイプと水抜き栓９との接続を第
１図のような構造とすればよい。更に、連絡管６にフラ
ンジ6bを設けないで、ケーシング3aに十分な強度を持た
せてこれに位置決めピン23を一体化する構成としてもよ
い。In addition, although the first stop type example has been described in the embodiment,
The same configuration can be used in the case of a main-stop type electric water heater in which the water supply operation is performed on the upstream side of the electric water heater. In this case, a pipe may be connected to the heating tank 3 without providing the connecting pipe 6, and the connection between the pipe and the water draining plug 9 may have the structure shown in FIG. Further, the connecting pipe 6 may not be provided with the flange 6b, and the casing 3a may have sufficient strength so that the positioning pin 23 may be integrated with the casing 3a.
以上のように、本考案では、水抜き栓を電気温水器側
の配管に接続した後にその回転を位置決めピンによって
拘束し、この後給水源側の配管を接続するようにしてい
る。このため、給水源側の配管を袋ナット又はソケット
等で接続する場合であっても、水抜き栓は回転すること
なく保持され、排水筒の姿勢を適正に設定したままの接
続が可能となる。したがって、工具を水抜き栓に掛けた
りすることなく作業が簡単に行え、しかも水抜き栓とし
て最適な姿勢に組み込むことができる。As described above, in the present invention, after connecting the water drain plug to the pipe on the electric water heater side, its rotation is restricted by the positioning pin, and then the pipe on the water supply source side is connected. Therefore, even when connecting the pipe on the water source side with a cap nut or socket, the drain plug is held without rotating, and connection can be performed while the posture of the drain pipe is properly set. . Therefore, the work can be easily performed without hanging the tool on the water drain plug, and the water drain plug can be installed in the optimum posture.
また、電気温水器のケーシングがキャビネットの中に
収納されるものでも、給水管側に設けた袋ナットに工具
を掛けてこれを回す作業をするだけで、水抜き栓が共回
りすることなく作業でき、電気温水器の内部配管との間
の連結が緩んだりすることのない配管が可能となる。Also, even if the casing of the electric water heater is stored in the cabinet, you only need to apply a tool to the cap nut provided on the water supply pipe side and turn it, without the water drain plug turning together. Therefore, it is possible to provide a pipe that does not loosen the connection with the internal pipe of the electric water heater.
第１図は本考案の水抜き栓取付け構造の要部を示す断面
図、第２図は継手部の軸線方向に見た概略図、第３図は
要部の斜視図、第４図は洗面化粧台に電気温水器を組み
込んだ例を示す正面図、第５図は電気温水器を備える場
合の配管系を示す従来例の概略図、第６図は継手を水抜
き栓を代用した従来例の斜視図である。 1:キャビネット、1a:洗面器 2:湯水混合栓、2a:スパウト 2b:ハンドシャワー、2c:切換えハンドル。 3:電気温水器、3a:ケーシング 3b:加熱タンク、3c:ドレン 4:止水栓 5:給水管、5a:袋ナット 6:連絡管、6a:水平管 6b:フランジ、6c:雌ネジ 6d:雄ネジ 7:分岐管、8:給湯管 9:水抜き栓、10:バルブユニット 11:逃がし弁 20:継手部、20a:流入口 20b:流出口、20c:雄ネジ 20d:雌ネジ、20e:ドレン孔 20f:フランジ、20g:拘束孔 21:排水筒 22:スピンドル、22a:弁体 22b:排出路 23:位置決めピン、23a:雄ネジ部 30:配管口、31:ビス 32:孔FIG. 1 is a cross-sectional view showing a main part of the water drain plug mounting structure of the present invention, FIG. 2 is a schematic view of the joint part as seen in the axial direction, FIG. 3 is a perspective view of the main part, and FIG. FIG. 5 is a front view showing an example in which an electric water heater is incorporated in a dressing table, FIG. 5 is a schematic view of a conventional example showing a piping system when the electric water heater is provided, and FIG. 6 is a conventional example in which a joint is replaced with a drain plug. FIG. 1: Cabinet, 1a: Washbasin 2: Hot and cold water mixing tap, 2a: Spout 2b: Hand shower, 2c: Switching handle. 3: Electric water heater, 3a: Casing 3b: Heating tank, 3c: Drain 4: Water stopcock 5: Water supply pipe, 5a: Cap nut 6: Communication pipe, 6a: Horizontal pipe 6b: Flange, 6c: Female screw 6d: Male screw 7: Branch pipe, 8: Hot water supply pipe 9: Water drain plug, 10: Valve unit 11: Relief valve 20: Joint part, 20a: Inlet port 20b: Outlet port, 20c: Male screw 20d: Female screw, 20e: Drain hole 20f: Flange, 20g: Restraint hole 21: Drain 22: Spindle, 22a: Valve body 22b: Discharge passage 23: Positioning pin, 23a: Male thread 30: Piping port, 31: Screw 32: Hole
Claims (2)
き出し、該突き出した配管の管端に水抜き栓を雄ネジ・
雌ネジ締結によって接続すると共に該水抜き栓に建屋側
からの給水管を接続する水抜き栓の取付け構造であっ
て、 前記水抜き栓が前記ケーシングに対向する端部にフラン
ジを設けると共に該フランジに拘束孔を開け、前記ケー
シングに前記拘束孔に嵌まり込む位置決めピンを設けた
ことを特徴とする電気温水器の水抜き栓取付け構造。1. An internal pipe is projected from a casing of an electric water heater, and a water drain plug is attached to the pipe end of the projected pipe by a male screw.
A mounting structure of a water drain plug for connecting by water screw fastening and connecting a water supply pipe from the building side to the water drain plug, wherein the water drain plug is provided with a flange at an end facing the casing, and the flange is provided. A water drain plug mounting structure for an electric water heater, characterized in that a restraining hole is formed in the casing, and a positioning pin that fits into the restraining hole is provided in the casing.
ットの内部に収納し、前記水抜き栓に雄ネジを設け給水
管には前記雄ネジに螺合するを袋ナットを設けて連結し
たことを特徴とする請求項１記載の電気温水器の水抜き
栓取付け構造。2. The casing is housed in a cabinet such as a vanity, and the water drain plug is provided with a male screw, and the water supply pipe is connected with a cap nut screwed with the male screw. The water drain plug mounting structure for an electric water heater according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989151793U JP2515861Y2 (en) | 1989-12-28 | 1989-12-28 | Water drain plug mounting structure for electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989151793U JP2515861Y2 (en) | 1989-12-28 | 1989-12-28 | Water drain plug mounting structure for electric water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0389349U JPH0389349U (en) | 1991-09-11 |
| JP2515861Y2 true JP2515861Y2 (en) | 1996-10-30 |
Family
ID=31698079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989151793U Expired - Lifetime JP2515861Y2 (en) | 1989-12-28 | 1989-12-28 | Water drain plug mounting structure for electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2515861Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6260315A (en) * | 1985-09-10 | 1987-03-17 | Nec Corp | Counter circuit |
-
1989
- 1989-12-28 JP JP1989151793U patent/JP2515861Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0389349U (en) | 1991-09-11 |
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