JP2010084845A

JP2010084845A - Draining device

Info

Publication number: JP2010084845A
Application number: JP2008254452A
Authority: JP
Inventors: Ikuo Imizu; 郁郎射水; Yasuto Mitsushiro; 靖人光城
Original assignee: Nix Inc
Current assignee: Nix Inc
Priority date: 2008-09-30
Filing date: 2008-09-30
Publication date: 2010-04-15
Anticipated expiration: 2028-09-30
Also published as: JP5124740B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a draining device improved in working efficiency, in which a drain plug attached to a drain port can be opened and closed by single operation. <P>SOLUTION: The device includes a drain port body 10 having a drain passage, and the drain plug 50 attached to the drain port body 10. The drain port body 10 includes a first guide part 21 which guides an attachment part 71 of the drain plug 50, a second guide part 22 adjacent to the first guide part 21 to guide the attachment part 71, and a third guide part 23 adjacent to the second guide part 22 to circumferentially guide the attachment part 71. The attachment part 71 is movable between the adjacent guide parts, and engagingly locked by a part of the second guide part 22 and a part of the third guide part 23. The drain plug 50 is locked in a close state when the attachment part 71 is guided to the third guide part 23, switched from the close state to an open state when the attachment part 71 is guided to the second guide part 22, and made removable from the drain port body 10 when the attachment part 71 is guided to the first guide part 21. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、各種機器内から湯水等の液体を外部に排出させる水抜装置に関する。 The present invention relates to a drainage device that discharges liquid such as hot water from various devices to the outside.

従来、例えば、床暖房機器や温水器等のように、機器内を湯水が循環する、あるいは機器内に湯水が残留または貯留される各種機器では、当該機器内に存在している湯水を外部に排出させる目的で、通常、水抜装置が配設されている。このような水抜装置としては、例えば、機器の配管に設けられた水口（排水口）の内周面に雌螺子を形成し、水抜栓の外周面に当該雌螺子に螺合する雄螺子を形成することにより、前記水抜栓を水口に螺子止めする構成のものが使用されている。（例えば、特許文献１参照）。 Conventionally, for example, various types of equipment in which hot water circulates in the equipment, such as floor heating equipment or water heaters, or in which hot water remains or is stored in the equipment, the hot water present in the equipment is externally provided. For the purpose of discharging, a drainage device is usually provided. As such a drainage device, for example, a female screw is formed on the inner peripheral surface of a water port (drainage port) provided in the piping of the device, and a male screw that is screwed into the female screw is formed on the outer peripheral surface of the water drain plug. Thus, a structure in which the water drain plug is screwed to the water port is used. (For example, refer to Patent Document 1).

また、機器の配管に水抜栓を水密に挿入する開口部（水口）を形成し、前記水抜栓の頭部を押えて固定する水抜栓ロックと、前記開口部の外周の全周または一部に凸部を突設し、前記水抜栓ロックには、前記水抜栓の頭部と前記凸部を挟み込み固定する孔部または凹部を有してなる水抜装置が紹介されている。（例えば、特許文献２参照）。 In addition, an opening (water port) for water-tightly inserting the water drain plug into the piping of the device is formed, and a water drain lock for pressing and fixing the head of the water drain plug is fixed to the entire circumference or a part of the outer periphery of the opening. A water draining device is provided which has a convex part and a hole or a concave part that sandwiches and fixes the head part of the water draining plug and the convex part. (For example, refer to Patent Document 2).

そしてまた、水抜用筒体（水口）の内面に雌螺子を設けると共に、当該内面下部に軸芯方向の水路溝を刻設し、前記水抜用筒体に前記雌螺子に螺合される雄螺子を具備した栓体を設け、当該栓体は、前記雄螺子の基端側に前記筒体の端面に当接される輪状端面の形成された把手部を設けると共に、当該雄螺子の先端側には前記雌螺子に密状に内嵌される円周面を具備した案内部を設け、前記輪状端面は、筒体の端面とパッキンを介して当接されてなる魚釣用保冷箱の水抜装置も紹介されている。（例えば、特許文献３参照）。
特開２００６−１６８１３号公報特開２００５−１７１５４２号公報実開平８−６３３号公報 Further, a female screw is provided on the inner surface of the draining cylinder (water port), and a water channel groove in the axial direction is formed on the lower portion of the inner surface, and the male screw is screwed into the draining cylinder with the female screw. The plug body is provided with a handle portion having a ring-shaped end surface that is in contact with the end surface of the cylindrical body on the proximal end side of the male screw, and on the distal end side of the male screw. Is provided with a guide portion having a circumferential surface that is closely fitted in the female screw, and the ring-shaped end surface is in contact with the end surface of the cylindrical body via a packing. Has also been introduced. (For example, refer to Patent Document 3).
JP 2006-16813 A JP 2005-171542 A Japanese Utility Model Publication No. 8-633

しかしながら、従来の水抜装置は、水抜栓（栓体）を水口に対し螺子の螺合により取付けているため、水抜栓を開閉する際に、当該水抜栓を複数周回転させる必要があり、水抜栓の開閉に手間がかかる。また、水抜栓の水口に螺合される側とは異なる端部に、例えばホース等が取付けられている場合、水抜栓を複数周回転させると、ホースが捩れ、作業性が低下する虞もある。 However, since the conventional water draining device has the water drain plug (plug body) attached to the water port by screwing the screw, it is necessary to rotate the water drain plug a plurality of times when opening and closing the water drain plug. Takes time to open and close. In addition, when a hose or the like is attached to an end portion different from the side screwed into the water port of the water drain plug, if the water drain plug is rotated a plurality of times, the hose may be twisted and workability may be reduced. .

本発明は、このような事情に鑑みなされたものであり、水口に取付けられた水抜栓を複数周回転させることなくワンタッチで開閉することができ、作業性を向上することが可能な水抜装置を提供することを目的とする。 The present invention has been made in view of such circumstances, and is a drainage device that can be opened and closed with a single touch without rotating a plurality of drain plugs attached to a water mouth, and can improve workability. The purpose is to provide.

この目的を達成するため本発明は、機器内から液体を外部に排出させる水抜装置であって、前記機器の配管に接続され、当該配管を流通する液体を外部に排出する排水流路を有する水口体と、前記水口体に着脱可能に取付けられる水抜栓と、を備え、前記水抜栓は、前記排水流路に挿脱可能に挿入される挿入部を有する栓本体と、当該栓本体に配設され、当該栓本体を前記水口体に着脱可能に取付ける取付部と、を有し、前記水口体の外周面には、前記取付部を前記挿脱方向に誘導する第１のガイド部と、前記第１のガイド部の一方の周方向側に隣接し、当該取付部を前記挿脱方向に誘導すると共に、前記第１のガイド部の前記挿入方向先端よりも当該挿入方向側に延びた第２のガイド部と、前記第１のガイド部よりも前記挿入方向側に配設されると共に、前記第２のガイド部の前記挿入方向側且つ他方の周方向側に隣接し、前記取付部を前記周方向に誘導する第３のガイド部と、を有するガイド領域が形成されてなり、前記取付部は、前記隣接するガイド部間を移動可能であると共に、前記第２のガイド部の一部及び第３のガイド部の一部に係止され、前記水抜栓は、前記取付部が前記第３のガイド部に誘導された際に閉状態をロックし、前記取付部が第２のガイド部に誘導された際に、前記閉状態と開状態とを切り替え、前記取付部が第１のガイド部に誘導された際に前記水口体から取外し可能となる水抜装置を提供するものである。 In order to achieve this object, the present invention is a drain device for discharging liquid from the inside of an apparatus, and is a water outlet that is connected to a pipe of the apparatus and has a drainage channel that discharges the liquid flowing through the pipe to the outside And a water drain plug that is detachably attached to the water mouth body, the water drain plug having a plug body that is removably inserted into the drainage channel, and disposed in the plug body. And an attachment portion for detachably attaching the plug body to the water mouth body, and on the outer peripheral surface of the water mouth body, a first guide portion for guiding the attachment portion in the insertion / removal direction, A second guide that is adjacent to one circumferential side of the first guide part, guides the attachment part in the insertion / removal direction, and extends further toward the insertion direction than the distal end in the insertion direction of the first guide part. The guide portion and the insertion direction side of the first guide portion And a guide region having a third guide portion that is adjacent to the insertion direction side and the other circumferential direction side of the second guide portion and guides the mounting portion in the circumferential direction. The attachment portion is movable between the adjacent guide portions, and is locked to a part of the second guide portion and a part of the third guide portion, and the drain plug is connected to the attachment portion. Locks the closed state when guided to the third guide part, and switches between the closed state and the open state when the mounting part is guided to the second guide part. A water draining device that can be removed from the water mouth body when guided to one guide portion is provided.

この構成を備えた水抜装置は、前記取付部が前記第３のガイド部に誘導された際に閉状態をロックし、前記取付部が第２のガイド部に誘導された際に、前記閉状態と開状態とを切り替え、前記取付部が第１のガイド部に誘導された際に前記水口体から取外し可能となる構成を有しているため、水抜栓をワンタッチで開閉することができる。すなわち、螺子による螺合を利用して水抜栓の開閉を行う、あるいは螺子による螺合を利用して水口体から水抜栓を取外す従来の水抜装置のように、水抜栓を水口体の周方向に複数周回転させる必要がない。したがって、作業性を向上することができる。 The drainage device having this configuration locks the closed state when the mounting portion is guided to the third guide portion, and the closed state when the mounting portion is guided to the second guide portion. When the mounting portion is guided to the first guide portion, the water drain plug can be opened and closed with a single touch. In other words, the water drain plug is opened and closed using the screw engagement, or the water drain plug in the circumferential direction of the water orifice body as in the conventional water drain device that removes the water drain plug from the water orifice body using the screw engagement. There is no need to rotate multiple turns. Therefore, workability can be improved.

また、本発明にかかる水抜装置は、前記第２のガイド部の前記挿脱方向両端に、前記取付部を係止する係止部を各々形成し、前記第３ガイド部の前記挿脱方向両端に、前記取付部を係止する係止部を各々形成することができる。このようにすることで、前記水抜栓が閉状態あるいは開状態に位置している際に、当該水抜栓が水口体から不意に外れることを防止することができる。 Further, the drainage device according to the present invention includes a locking portion for locking the mounting portion at both ends of the second guide portion in the insertion / removal direction, and both ends of the third guide portion in the insertion / removal direction. In addition, a locking portion for locking the mounting portion can be formed. By doing in this way, when the said water drain plug is located in a closed state or an open state, it can prevent that the said water drain plug remove | deviates from the water mouth body unexpectedly.

そしてまた、前記挿入部は、前記排水流路を画定する内周面に着脱可能に密着し、当該内周面に密着した際に前記水抜栓を閉状態にし、当該密着を解除した際に前記水抜栓を開状態とする密着部と、中空形状を有し、前記水抜栓が開状態となった際に、前記液体を当該中空部分を介して外部に排出する排水部と、を有してなり、前記排水部の外周面は、前記排水流路を画定する内周面に略接触し、当該排水部の外周面の一部に、複数の環状溝を互いに間隔をおいて形成した構成とすることができる。この構成により、前記排水部の外周面の一部には、前記環状溝と、当該環状溝を形成する環状凸部との繰返しによって形成される、いわゆる「フィン形状」が設けられることになる。このように構成することで、機器内から排出された液体が、前記排水流路を画定する内周面と、当該排水部の外周面との間に進入しようとした際に、当該液体の進入は、前記フィン形状によって阻止されることになる。したがって、前記排水流路を画定する内周面と、当該排水部の外周面との間にＯリング等のシール部材を配設することなく、前記機器内から排出された液体を、前記排水部の中空部分に集中して流すことができる。 In addition, the insertion portion is detachably attached to an inner peripheral surface that defines the drainage flow path, and when the contact is made to close to the inner peripheral surface, the water faucet is closed, and the contact is released when the adhesion is released. A close contact portion that opens the drain plug, and has a hollow shape, and a drainage portion that discharges the liquid to the outside through the hollow portion when the drain plug is open. The outer peripheral surface of the drainage portion is substantially in contact with the inner peripheral surface that defines the drainage flow path, and a plurality of annular grooves are formed in a part of the outer peripheral surface of the drainage portion at intervals. can do. With this configuration, a part of the outer peripheral surface of the drainage portion is provided with a so-called “fin shape” formed by repetition of the annular groove and the annular convex portion forming the annular groove. By configuring in this way, when the liquid discharged from inside the apparatus tries to enter between the inner peripheral surface that defines the drainage flow path and the outer peripheral surface of the drainage part, the entry of the liquid Is prevented by the fin shape. Therefore, the liquid discharged from the device is allowed to flow without disposing a seal member such as an O-ring between the inner peripheral surface that defines the drainage channel and the outer peripheral surface of the drainage portion. It can be concentrated and flow in the hollow part.

さらにまた、本発明にかかる水抜装置は、前記水抜栓を前記水口体の周方向に所定角度で回転することで、前記取付部が前記隣接するガイド部間を移動するよう構成することができる。このようにすることで、水抜栓を、水口体の周方向に所定角度回転させるという簡単な操作で、当該水抜栓の開閉を行うことができる。また、この構成の場合、前記所定角度は、第１のガイド部、第２のガイド部、第３のガイド部の、前記周方向の長さ（幅）によって決定されるが、前記所定角度は、例えば、９０度以下とすることができる。 Furthermore, the drainage device according to the present invention can be configured such that the attachment portion moves between the adjacent guide portions by rotating the drain plug at a predetermined angle in the circumferential direction of the water mouth body. By doing in this way, the water drain plug can be opened and closed by a simple operation of rotating the water drain plug by a predetermined angle in the circumferential direction of the water mouth body. In the case of this configuration, the predetermined angle is determined by the circumferential lengths (widths) of the first guide portion, the second guide portion, and the third guide portion. For example, it can be set to 90 degrees or less.

また、本発明にかかる水抜装置は、前記隣接するガイド部間に、前記取付部に所定以上の移動力が付与された際に当該取付部の移動を可能にする堰部を形成することができる。このように構成することで、例えば、取付部は、第２のガイド部から第３のガイド部へ移動させるための力が付与された際に、第２のガイド部から第３のガイド部へ移動し、第３のガイド部から第２のガイド部へ移動させるための力が付与された際に、第３のガイド部から第２のガイド部へ移動することになるため、前記利点に加え、水抜栓の開閉が不意に行われることをさらに確実に防止することができる。また、同様に、取付部は、第１のガイド部から第２のガイド部へ移動させるための力が付与された際に、第１のガイド部から第２のガイド部へ移動し、第２のガイド部から第１のガイド部へ移動させるための力が付与された際に、第２のガイド部から第１のガイド部へ移動することになるため、前記利点に加え、水抜栓が不意に取外し可能位置に位置することをさらに確実に防止することができる。 In addition, the drainage device according to the present invention can form a weir portion between the adjacent guide portions that allows the mounting portion to move when a predetermined or more moving force is applied to the mounting portion. . By configuring in this way, for example, when the force for moving the attachment portion from the second guide portion to the third guide portion is applied, the attachment portion moves from the second guide portion to the third guide portion. In addition to the advantages described above, when the force for moving and moving from the third guide part to the second guide part is applied, the third guide part moves from the third guide part to the second guide part. Further, it is possible to more reliably prevent unexpected opening and closing of the water drain plug. Similarly, the attachment portion moves from the first guide portion to the second guide portion when a force for moving from the first guide portion to the second guide portion is applied, and the second guide portion moves to the second guide portion. When the force for moving from the first guide portion to the first guide portion is applied, the second guide portion moves from the first guide portion to the first guide portion. It is possible to more reliably prevent the device from being located at the removable position.

そしてまた、本発明にかかる水抜装置は、前記取付部を複数有し、前記水口体の外周面に、前記複数の取付部の各々に対応する前記ガイド領域を形成した構成を備えていてもよい。このようにすることで、前記水口体に水抜栓をより確実に安定した状態で取付けることができる。 In addition, the drainage device according to the present invention may have a configuration in which a plurality of the mounting portions are provided, and the guide regions corresponding to each of the plurality of mounting portions are formed on the outer peripheral surface of the water mouth body. . By doing in this way, it is possible to attach the water drain plug to the water mouth body in a more reliable and stable state.

本発明にかかる水抜装置は、前記取付部が前記第３のガイド部に誘導された際に閉状態をロックし、前記取付部が第２のガイド部に誘導された際に、前記閉状態と開状態とを切り替え、前記取付部が第１のガイド部に誘導された際に前記水口体から取外し可能となるため、水抜栓をワンタッチで開閉することができ、作業性を向上することができる。 The drainage device according to the present invention locks the closed state when the mounting portion is guided to the third guide portion, and the closed state when the mounting portion is guided to the second guide portion. When the mounting portion is guided to the first guide portion and can be removed from the water mouth body, the water faucet can be opened and closed with one touch, and workability can be improved. .

次に、本発明の好適な実施の形態にかかる水抜装置について図面を参照して説明する。なお、以下に記載される実施の形態は、本発明を説明するための例示であり、本発明をこれらの実施の形態にのみ限定するものではない。したがって、本発明は、その要旨を逸脱しない限り、様々な形態で実施することができる。 Next, a drainage device according to a preferred embodiment of the present invention will be described with reference to the drawings. In addition, embodiment described below is the illustration for demonstrating this invention, and this invention is not limited only to these embodiment. Therefore, the present invention can be implemented in various forms without departing from the gist thereof.

図１は、本発明の水抜装置の外観を示す側面図であり、前記水抜装置の構成要素である水抜栓が閉状態である場合を示す図、図２は、図１に示す水抜装置の底面図、図３は、図２に示すIII−III線に沿った断面図の上下を逆にして示す図、図４は、本発明の水抜装置の外観を示す側面図であり、前記水抜装置の構成要素である水抜栓が開状態である場合を示す図、図５は、図４に示す水抜装置の底面図、図６は、図５に示すVI−VI線に沿った断面図の上下を逆にして示す図、図７は、図６に示す水抜装置の一部を拡大して示す断面図、図８は、本発明の水抜装置の外観を示す側面図であり、前記水抜装置の構成要素である水抜栓が取外し可能位置にある場合を示す図、図９は、図８に示す水抜装置の底面図、図１０は、図９に示すＸ−Ｘ線に沿った断面図の上下を逆にして示す図、図１１は、本発明の水抜装置の外観を示す側面図であり、前記水抜装置の構成要素である水抜栓が取外される直前の状態を示す図、図１２は、図１１に示す水抜装置の底面図、図１３は、図１２に示すXIII−XIII線に沿った断面図、図１４は、図１１に示す水抜装置の一部を拡大して示す側面図である。なお、前記各図では、説明を判り易くするため、各部材の厚さやサイズ、拡大・縮小率等は、実際のものとは一致させずに記載した。 FIG. 1 is a side view showing an external appearance of the drainage device of the present invention, and shows a case where a drain plug as a component of the drainage device is in a closed state, and FIG. 2 is a bottom view of the drainage device shown in FIG. 3 is a diagram showing the cross-sectional view taken along the line III-III shown in FIG. 2 upside down, and FIG. 4 is a side view showing the appearance of the water draining device of the present invention. The figure which shows the case where the drain plug which is a component is an open state, FIG. 5 is a bottom view of the drain apparatus shown in FIG. 4, FIG. 6 shows the upper and lower sides of sectional drawing along the VI-VI line shown in FIG. FIG. 7 is an inverted view, FIG. 7 is an enlarged cross-sectional view of a part of the drainage device shown in FIG. 6, and FIG. 8 is a side view showing the appearance of the drainage device of the present invention. FIG. 9 is a bottom view of the water draining device shown in FIG. 8, and FIG. 10 is along the line XX shown in FIG. FIG. 11 is a side view showing the appearance of the water draining device of the present invention, and shows a state immediately before the drain plug as a component of the water draining device is removed. 12 is a bottom view of the water draining device shown in FIG. 11, FIG. 13 is a cross-sectional view taken along line XIII-XIII shown in FIG. 12, and FIG. 14 is an enlarged view of a part of the water draining device shown in FIG. FIG. In the drawings, for easy understanding, the thickness, size, enlargement / reduction ratio, etc. of each member are not matched with the actual ones.

図１〜図１４に示すように、本実施の形態にかかる水抜装置１は、図示しない機器の配管に接続される水口体１０と、水口体１０に着脱可能に取付けられる水抜栓５０と、を備えている。 As shown in FIGS. 1-14, the water draining apparatus 1 concerning this Embodiment has the water spout body 10 connected to the piping of the apparatus which is not shown in figure, and the water drain plug 50 attached to the water spout body 10 so that attachment or detachment is possible. I have.

水口体１０は、中空の管からなる水口本体１１と、水口本体１１から分岐された中空の分岐部１２を有しており、水口本体１１の中空部分と、分岐部１２の中空部分とによって、液体を外部に排出する排水流路を構成している。水口本体１１の上流側は、前記図示しない機器の配管に接続される接続部１４となっており、この接続部１４の下流側には、接続用のフランジ１５が形成されている。 The water spout body 10 has a water spout main body 11 made of a hollow tube, and a hollow branch portion 12 branched from the water spout main body 11, and by the hollow portion of the water spout main body 11 and the hollow portion of the branch portion 12, It constitutes a drainage channel that discharges liquid to the outside. An upstream side of the water main body 11 serves as a connection portion 14 connected to the piping of the device (not shown), and a connection flange 15 is formed on the downstream side of the connection portion 14.

分岐部１２は、外観が略円筒形からなり、その中空部分が水口本体１１の中空部分と連通し、後に詳述する水抜栓５０の挿入部５１が着脱可能に挿入される挿入孔１３となっている。この挿入孔１３は、特に図１３等に示すように、水口本体１１側（基端側）に形成された小径孔１６と、小径孔１６よりも先端側に形成され且つ小径孔１６よりも大きな径を有する大径孔１７から構成されている。小径孔１６は、後に詳述する挿入部５１の密着部５２が挿入可能となっており、小径孔１６に密着部５２が挿入された際に、小径孔１６を画定している内周面１８と密着部５２の外周面との間は、密着部５２の構成要素であるＯリング５３によって水密に保持されるようになっている。大径孔１７は、後に詳述する挿入部５１の排水部５４を挿入可能となっており、大径孔１７に排水部５４が挿入された際に、排水部５４の外周面は、大径孔１７を画定している内周面１９に接触した状態あるいはほぼ接触している状態となっている。 The branch portion 12 has a substantially cylindrical shape, and its hollow portion communicates with the hollow portion of the water body 11, and becomes an insertion hole 13 into which an insertion portion 51 of a water drain plug 50 described later is detachably inserted. ing. As shown in FIG. 13 and the like, the insertion hole 13 has a small-diameter hole 16 formed on the water mouth main body 11 side (base end side), a distal end side than the small-diameter hole 16 and larger than the small-diameter hole 16. It is composed of a large-diameter hole 17 having a diameter. The small diameter hole 16 can be inserted into a close contact portion 52 of the insertion portion 51 described in detail later, and when the close contact portion 52 is inserted into the small diameter hole 16, the inner peripheral surface 18 that defines the small diameter hole 16. And the outer peripheral surface of the close contact portion 52 are held watertight by an O-ring 53 that is a component of the close contact portion 52. The large-diameter hole 17 can insert a drainage portion 54 of the insertion portion 51 described in detail later. When the drainage portion 54 is inserted into the large-diameter hole 17, the outer peripheral surface of the drainage portion 54 has a large diameter. The state is in contact with or almost in contact with the inner peripheral surface 19 defining the hole 17.

分岐部１２の外周面には、特に図１４等に示すように、分岐部１２の先端（水口本体１１から離れた端：以下、こちら側を「先端側」と記す）から分岐部１２の基端（水口本体１１に近い端：こちら側を「基端側」と記す）に向けて、分岐部１２の略中央位置付近まで延びた第１のガイド部２１が形成されている。また、分岐部１２の外周面には、第１のガイド部２１の一方の周方向（図１４でいう反時計回り方向）側に隣接した状態で、先端側が第１のガイド部２１の略中央付近に位置し、基端側が第１のガイド部２１の基端よりも基端側に延びた第２のガイド部２２が形成されている。さらにまた、分岐部１２の外周面には、第１のガイド部２１の基端よりも基端側に配設されると共に、第２のガイド部２２の基端側且つ他方の周方向（図１４でいう時計回り方向）側に隣接した状態で、他方の周方向側に延びる第３のガイド部２３が形成されている。なお、第２のガイド部２２の基端と、第３のガイド部２３の基端は、同一円周上に位置している。 On the outer peripheral surface of the branching portion 12, as shown in FIG. A first guide portion 21 extending to the vicinity of a substantially central position of the branch portion 12 is formed toward an end (an end close to the water mouth main body 11: this side is referred to as a “base end side”). Further, the outer peripheral surface of the branching portion 12 is adjacent to one circumferential direction (counterclockwise direction in FIG. 14) side of the first guide portion 21, and the tip side is substantially the center of the first guide portion 21. A second guide portion 22 is formed which is located near the base end side and extends closer to the base end side than the base end of the first guide portion 21. Furthermore, the outer peripheral surface of the branching portion 12 is disposed closer to the base end side than the base end of the first guide portion 21, and the base end side of the second guide portion 22 and the other circumferential direction (see FIG. A third guide portion 23 extending in the other circumferential direction side is formed in a state adjacent to the clockwise direction (14) side. In addition, the base end of the 2nd guide part 22 and the base end of the 3rd guide part 23 are located on the same periphery.

第１のガイド部２１、第２のガイド部２２及び第３のガイド部２３は、凹部から形成されており、第１のガイド部２１及び第２のガイド部２２は、後に詳述する水抜栓５０の取付部７１を水抜栓５０の挿脱方向に誘導し、第３のガイド部２３は、取付部７１を分岐部１２の周方向に誘導する。そして、取付部７１は、第１のガイド部２１と第２のガイド部２２との間を移動可能であり、第２のガイド部２２と第３のガイド部２３との間を移動可能であり、第１のガイド部２１、第２のガイド部２２、第３のガイド部２３により、ガイド領域３０を構成している。なお、水抜栓５０は、取付部７１が第３のガイド部２３に誘導された際に閉状態をロックし、取付部７１が第２のガイド部２２に誘導された際に閉状態と開状態とを切り替え、取付部７１が第１のガイド部２１に誘導された際に分岐部１２から取外し可能となる。 The 1st guide part 21, the 2nd guide part 22, and the 3rd guide part 23 are formed from the crevice, and the 1st guide part 21 and the 2nd guide part 22 are the water faucets explained in full detail behind The 50 guide portions 71 are guided in the insertion / removal direction of the water drain plug 50, and the third guide portion 23 guides the attachment portion 71 in the circumferential direction of the branch portion 12. The mounting portion 71 can move between the first guide portion 21 and the second guide portion 22, and can move between the second guide portion 22 and the third guide portion 23. The first guide part 21, the second guide part 22, and the third guide part 23 constitute a guide region 30. The drain plug 50 locks the closed state when the mounting portion 71 is guided to the third guide portion 23, and closes and opens when the mounting portion 71 is guided to the second guide portion 22. When the mounting portion 71 is guided to the first guide portion 21, it can be removed from the branch portion 12.

また、第１のガイド部２１の一方の周方向側（第２のガイド部２２側）には、堰部２５が形成されている。この堰部２５は、通常の状態では、取付部７１が第１のガイド部２１と第２のガイド部２２との間を移動することを阻止し、取付部７１に、第１のガイド部２１と第２のガイド部２２との間を移動させるための力（後に詳述するが、水抜栓５０を分岐部１２に対し周方向に回転させる力）が付与された際に、取付部７１が第１のガイド部２１と第２のガイド部２２との間を移動することを可能にする。また、堰部２５は、第１のガイド部２１側が低く、第２のガイド部２２側が高い傾斜面を有しており、取付部７１が、第１のガイド部２１から第２のガイド部２２へ移動する際に必要な力は、比較的小さく、第２のガイド部２２から第１のガイド部２１へ移動する際に必要な力は、比較的大きくなる。これにより、水抜栓５０を分岐部１２に取付ける作業は簡単に行え、水抜栓５０が分岐部１２から不意に外れる（取付部７１が取外し位置に移動する）ことを防止することができる。また、第１のガイド部２１は、凹部から形成されているため、第１のガイド部２１を移動する取付部７１は、第１のガイド部２１の基端に位置する側壁によって係止され、これ以上基端側に移動することが阻止される。すなわち、この側壁によって、取付部７１を係止する係止部２４が形成される。また、第１のガイド部２１を移動する取付部７１は、第１のガイド部２１の他方の周方向に位置する側壁と、堰部２５に当接し、水抜栓５０の挿脱方向に誘導される。 Further, a weir portion 25 is formed on one circumferential side (the second guide portion 22 side) of the first guide portion 21. In a normal state, the dam portion 25 prevents the attachment portion 71 from moving between the first guide portion 21 and the second guide portion 22, so that the attachment portion 71 has the first guide portion 21. When a force for moving between the first guide portion 22 and the second guide portion 22 (which will be described in detail later, a force for rotating the water drain plug 50 in the circumferential direction with respect to the branch portion 12) is applied, It is possible to move between the first guide portion 21 and the second guide portion 22. Further, the dam portion 25 has an inclined surface that is low on the first guide portion 21 side and high on the second guide portion 22 side, and the attachment portion 71 extends from the first guide portion 21 to the second guide portion 22. The force required to move to the second guide portion is relatively small, and the force required to move from the second guide portion 22 to the first guide portion 21 is relatively large. Thereby, the operation | work which attaches the water drain plug 50 to the branch part 12 can be performed easily, and it can prevent that the water drain plug 50 removes from the branch part 12 unexpectedly (the attachment part 71 moves to a removal position). Further, since the first guide portion 21 is formed from a concave portion, the attachment portion 71 that moves the first guide portion 21 is locked by a side wall located at the proximal end of the first guide portion 21, Further movement to the base end side is prevented. That is, the locking portion 24 that locks the attachment portion 71 is formed by the side wall. In addition, the attachment portion 71 that moves the first guide portion 21 is in contact with the side wall located in the other circumferential direction of the first guide portion 21 and the weir portion 25 and is guided in the insertion / removal direction of the drain plug 50. The

同様に、第２のガイド部２２は、凹部から形成されているため、取付部７１が先端側に移動しようとした際に、取付部７１は、第２のガイド部２２の先端に位置する側壁に係止され、これ以上先端側に移動することが阻止される。すなわち、この側壁によって、取付部７１を係止する係止部２６が形成される。また、取付部７１が基端側に移動しようとした際に、第２のガイド部２２の基端に位置する側壁に取付部７１が係止され、これ以上基端側に移動することが阻止される。すなわち、この側壁によって、取付部７１を係止する係止部２７が形成される。また、第２のガイド部２２を移動する取付部７１は、第２のガイド部２２の周方向に位置する各々の側壁に当接し水抜栓５０の挿脱方向に誘導される。 Similarly, since the second guide portion 22 is formed of a recess, when the attachment portion 71 is about to move to the distal end side, the attachment portion 71 is a side wall located at the distal end of the second guide portion 22. And is prevented from moving further to the tip side. That is, the locking portion 26 that locks the attachment portion 71 is formed by the side wall. In addition, when the attachment portion 71 is about to move to the proximal end side, the attachment portion 71 is locked to the side wall located at the proximal end of the second guide portion 22 to prevent further movement toward the proximal end side. Is done. That is, the locking portion 27 that locks the attachment portion 71 is formed by the side wall. In addition, the attachment portion 71 that moves the second guide portion 22 abuts on each side wall located in the circumferential direction of the second guide portion 22 and is guided in the insertion / removal direction of the drain plug 50.

第２のガイド部２２と、第３のガイド部との間には、堰部３１が形成されている。この堰部３１は、通常の状態では、取付部７１が第２のガイド部２２と第３のガイド部２３との間を移動することを阻止し、取付部７１に、第２のガイド部２２と第３のガイド部２３との間を移動させるための力が付与された際に、取付部７１が第２のガイド部２２と第３のガイド部２３との間を移動することを可能にする。この堰部３１は凸状のリブから構成されている。 A dam portion 31 is formed between the second guide portion 22 and the third guide portion. In a normal state, the dam portion 31 prevents the attachment portion 71 from moving between the second guide portion 22 and the third guide portion 23, so that the attachment portion 71 has the second guide portion 22. The mounting portion 71 can move between the second guide portion 22 and the third guide portion 23 when a force for moving between the second guide portion 22 and the third guide portion 23 is applied. To do. This dam part 31 is comprised from the convex-shaped rib.

第３のガイド部２３は、凹部から形成されているため、取付部７１が先端側に移動しようとした際に、取付部７１は、第３のガイド部２３の先端に位置する側壁に係止され、これ以上先端側に移動することが阻止される。すなわち、この側壁によって、取付部７１を係止する係止部２８が形成される。また、取付部７１が基端側に移動しようとした際に、第３のガイド部２３の基端に位置する側壁に取付部７１が係止され、これ以上基端側に移動することが阻止される。すなわち、この側壁によって、取付部７１を係止する係止部２９が形成される。第３のガイド部２３を移動する取付部７１は、係止部２８及び２９に当接して分岐部１２の周方向に誘導される。また、第３のガイド部２３を他方の周方向に向けて移動する取付部７１は、第３のガイド部２３の他方の周方向に位置する側壁に係止され、この位置で移動が停止するようになっている。 Since the third guide portion 23 is formed from a recess, when the attachment portion 71 is about to move to the distal end side, the attachment portion 71 is locked to the side wall located at the distal end of the third guide portion 23. Thus, the further movement to the tip side is prevented. That is, the side wall forms a locking portion 28 that locks the mounting portion 71. Further, when the attachment portion 71 is about to move to the proximal end side, the attachment portion 71 is locked to the side wall located at the proximal end of the third guide portion 23, and further movement to the proximal end side is prevented. Is done. That is, the side wall forms a locking portion 29 that locks the mounting portion 71. The attachment portion 71 that moves the third guide portion 23 abuts against the locking portions 28 and 29 and is guided in the circumferential direction of the branch portion 12. Further, the attachment portion 71 that moves the third guide portion 23 toward the other circumferential direction is locked to the side wall located in the other circumferential direction of the third guide portion 23, and the movement stops at this position. It is like that.

なお、本実施の形態では、取付部７１の第１のガイド部２１と第２のガイド部２２との間の移動は、水抜栓５０を分岐部１２の周方向に約４５度回転させることにより可能となり、取付部７１の第２のガイド部２２と第３のガイド部２３との間の移動は、水抜栓５０を分岐部１２の周方向に約４５度回転させることにより可能となるようにした。また、本実施の形態では、後に詳述するが、２つの取付部７１が、互いに１８０度ずれた位置に設けられた水抜栓５０を使用しているため、ガイド領域３０は、各々の取付部７１に対応する位置（すなわち、互いに１８０度ずれた位置）に形成した。 In the present embodiment, the movement of the attachment portion 71 between the first guide portion 21 and the second guide portion 22 is performed by rotating the water drain plug 50 in the circumferential direction of the branch portion 12 by about 45 degrees. The mounting portion 71 can be moved between the second guide portion 22 and the third guide portion 23 by rotating the water drain plug 50 in the circumferential direction of the branch portion 12 by about 45 degrees. did. Further, in the present embodiment, as will be described in detail later, since the two attachment portions 71 use the water drainage plugs 50 provided at positions shifted from each other by 180 degrees, the guide region 30 has each attachment portion. It was formed at a position corresponding to 71 (that is, a position shifted by 180 degrees from each other).

水抜栓５０は、分岐部１２の挿入孔１３に挿脱可能に挿入される挿入部５１を有する栓本体６０と、当該栓本体６０に配設され、栓本体６０を分岐部１２に着脱可能に取付ける２つの取付部７１と、を備えて構成されている。 The drain plug 50 is provided on the plug body 60 having an insertion part 51 that is removably inserted into the insertion hole 13 of the branch part 12, and the plug body 60 can be attached to and detached from the branch part 12. And two attachment portions 71 to be attached.

挿入部５１は、栓本体６０の挿入方向側の端部に形成され、小径孔１６に挿入された際に、小径孔１６の内周面１８に密着する密着部５２と、密着部５２の抜脱方向側に形成され、大径孔１７に挿入された際に、大径孔１７の内周面１９に接触した状態あるいはほぼ接触している状態となる排水部５４と、を有している。 The insertion portion 51 is formed at the end of the stopper body 60 on the insertion direction side, and when inserted into the small diameter hole 16, the insertion portion 51 comes into close contact with the inner peripheral surface 18 of the small diameter hole 16, and the contact portion 52 is removed. And a drainage portion 54 formed on the detachment side and in contact with or substantially in contact with the inner peripheral surface 19 of the large-diameter hole 17 when inserted into the large-diameter hole 17. .

密着部５２は、略円筒形を有し且つ中実である栓部６２と、栓部６２の外周面に配設されたＯリング５３を有しており、小径孔１６に密着部５２が挿入された際には、Ｏリング５３によって、小径孔１６の内周面１８と密着部５２の外周面との間が水密に保持されるようになっている。そして、水抜栓５０は、密着部５２が小径孔１６に挿入された際（図３参照）に閉状態となり、密着部５２が小径孔１６から抜取られた際（図６、図７参照）に開状態となる。 The close contact portion 52 has a substantially cylindrical and solid plug portion 62 and an O-ring 53 disposed on the outer peripheral surface of the plug portion 62, and the close contact portion 52 is inserted into the small diameter hole 16. When this is done, the O-ring 53 holds the space between the inner peripheral surface 18 of the small diameter hole 16 and the outer peripheral surface of the contact portion 52 in a watertight manner. The water drain plug 50 is closed when the contact portion 52 is inserted into the small diameter hole 16 (see FIG. 3), and when the contact portion 52 is pulled out from the small diameter hole 16 (see FIGS. 6 and 7). Open state.

排水部５４は、中空の略円筒形を有し、その外周面には、複数の環状溝５６（本実施の形態では５本）が、互いに間隔をおいて形成されている。すなわち、排水部５４の環状溝５６が形成されている領域は、環状溝５６と、環状溝５６の両側に位置して環状溝５６を画定する（形成する）環状凸部６６との繰返しとなり、この繰返しによって、いわゆる「フィン形状」が形成される。この排水部５４の密着部５２が形成されている端面には、水口本体１０の排水流路から排出される液体を中空部５８に進入させるための孔５７が開口されている。この排水部５４の密着部５２が形成されている側とは反対側には、中空部５８に連通する中空部を有する略円筒形の円筒部５５が形成されており、排水部５４と円筒部５５との間には、フランジ６１が形成されている。そして、中空部５８に進入した液体は、円筒部５５の中空部を経て外部に排出される。なお、円筒部５５には、ホースや他の配管等を取付けることができる。 The drainage part 54 has a hollow substantially cylindrical shape, and a plurality of annular grooves 56 (five in the present embodiment) are formed at intervals on the outer peripheral surface thereof. That is, the region where the annular groove 56 of the drainage portion 54 is formed is a repetition of the annular groove 56 and the annular convex portion 66 that is located on both sides of the annular groove 56 to define (form) the annular groove 56. By repeating this process, a so-called “fin shape” is formed. A hole 57 for allowing the liquid discharged from the drainage channel of the water mouth main body 10 to enter the hollow portion 58 is opened at the end surface of the drainage portion 54 where the close contact portion 52 is formed. A substantially cylindrical cylindrical portion 55 having a hollow portion communicating with the hollow portion 58 is formed on the opposite side of the drainage portion 54 from the side on which the close contact portion 52 is formed. A flange 61 is formed between the flanges 55 and 55. Then, the liquid that has entered the hollow portion 58 is discharged to the outside through the hollow portion of the cylindrical portion 55. In addition, a hose, other piping, etc. can be attached to the cylindrical part 55.

２つの取付部７１は、フランジ６１の外周面の互いに対向する位置から水抜栓５０の挿入方向に向けて、排水部５４の密着部５２が形成されている端面付近まで各々延出し、その延出端部の排水部５４と対向する面には、第１のガイド部２１、第２のガイド部２２、第３のガイド部２３に受領されて第１のガイド部２１、第２のガイド部２２、第３のガイド部２３を移動可能であり、係止部２４、２６、２７、２８及び２９に係止される係止爪７２が各々形成されている。この取付部７１は、前述した所定の力が付与されて堰部２５及び３１を通過する際に、外側に弾性変形し、堰部２５及び３１を越えるようになっている。 The two attachment portions 71 respectively extend from the positions of the outer peripheral surfaces of the flange 61 facing each other to the vicinity of the end surface where the close contact portion 52 of the drainage portion 54 is formed, in the insertion direction of the drain plug 50. The first guide portion 21, the second guide portion 22, and the third guide portion 23 are received by the first guide portion 21, the second guide portion 22, and the end portion of the surface facing the drainage portion 54. The third guide portion 23 is movable, and locking claws 72 that are locked to the locking portions 24, 26, 27, 28, and 29 are formed. The attachment portion 71 is elastically deformed outward when the predetermined force described above is applied and passes through the weir portions 25 and 31, and exceeds the weir portions 25 and 31.

次に、本実施の形態にかかる水抜装置１の具体的動作について、図面を参照して説明する。 Next, the specific operation of the drainage device 1 according to the present embodiment will be described with reference to the drawings.

先ず、水口体１０に水抜栓５０を取付ける際は、図１１〜図１３に示すように、取付部７１の係止爪７２の位置が、第１のガイド部２１とほぼ同一直線上になるようにして、水抜栓５０の密着部５２を分岐部１２に形成された大径孔１７の先端に挿入する。次に、第１のガイド部２１に取付部７１の係止爪７２を入れ、水抜栓５０をさらに挿入する。この動作により、係止爪７２は、第１のガイド部２１に誘導されて挿入方向に移動して係止部２４に当接し、当該移動が停止される。（図８〜図１０参照）。次いで、この状態で、水抜栓５０を反時計回りに約４５度回転させると、係止爪７２が堰部２５を乗り越えて、係止爪７２は、第２のガイド部２２に移動する。（図４〜図６参照）。次に、水抜栓５０をさらに挿入すると、係止爪７２は、第２のガイド部２２に誘導されて挿入方向にさらに移動して係止部２７に当接し、当該移動が停止される。この時、密着部５２は、小径孔１６に挿入され、Ｏリング５３によって、小径孔１６の内周面１８と密着部５２の外周面との間が水密に保持され、水抜栓５０は閉状態となる。 First, when the drain plug 50 is attached to the water body 10, as shown in FIGS. 11 to 13, the position of the locking claw 72 of the mounting portion 71 is substantially collinear with the first guide portion 21. Then, the close contact portion 52 of the water drain plug 50 is inserted into the tip of the large-diameter hole 17 formed in the branch portion 12. Next, the locking claw 72 of the attachment portion 71 is inserted into the first guide portion 21 and the water drain plug 50 is further inserted. By this operation, the locking claw 72 is guided by the first guide portion 21 and moves in the insertion direction so as to contact the locking portion 24, and the movement is stopped. (See FIGS. 8 to 10). Next, in this state, when the drain plug 50 is rotated approximately 45 degrees counterclockwise, the locking claw 72 gets over the weir 25 and the locking claw 72 moves to the second guide portion 22. (See FIGS. 4 to 6). Next, when the drain plug 50 is further inserted, the locking claw 72 is guided by the second guide portion 22 and further moves in the insertion direction to contact the locking portion 27, and the movement is stopped. At this time, the close contact portion 52 is inserted into the small diameter hole 16, and the O-ring 53 holds the space between the inner peripheral surface 18 of the small diameter hole 16 and the outer peripheral surface of the close contact portion 52, and the water drain plug 50 is closed. It becomes.

次に、この状態で、水抜栓５０を時計回りに約４５度回転させると、係止爪７２が堰部３１を乗り越えて、係止爪７２が第３のガイド部２３に移動する。これにより、係止爪７２は、先端側への移動が係止部２８により阻止され、基端側への移動が係止部２９により阻止されて、密着部５２が小径孔１６から外れることが防止され、水抜栓５０の閉状態がロックされる。（図１〜図３参照）。この時、フランジ６１を分岐部１２の先端面に当接させてもよい。 Next, when the water drain plug 50 is rotated about 45 degrees clockwise in this state, the locking claw 72 gets over the weir 31 and the locking claw 72 moves to the third guide part 23. Accordingly, the locking claw 72 is prevented from moving toward the distal end side by the locking portion 28, and is prevented from moving toward the proximal end side by the locking portion 29, so that the contact portion 52 is detached from the small diameter hole 16. This prevents the water stopper 50 from being closed. (See FIGS. 1 to 3). At this time, the flange 61 may be brought into contact with the front end surface of the branch portion 12.

次に、水抜栓５０を開いて、図示しない機器の配管から排出される液体を外部に排出する際は、ロック状態にある水抜栓５０（図１〜図３参照）を、反時計回りに約４５度回転させると、係止爪７２が堰部３１を乗り越えて、第３のガイド部２３から第２のガイド部２２に移動する。この状態で、水抜栓５０を先端方向に引くと、係止爪７２が第２のガイド部２２に誘導されて先端側に移動し、密着部５２が小径孔１６から抜取られ（図４〜図６参照）、水抜栓５０が開状態になる。水抜栓５０が開状態になると、特に図７に示すように、配管から排出される液体が小径孔１６から大径孔１７に流れ込み、孔５７を介して中空部５８に進入し、ここから外部に排出される。この時、小径孔１６から大径孔１７に流れ込んだ液体が、大径孔１７の内周面１９と、排水部５４の外周面との間に進入しようとするが、排水部５４の外周面には、複数の環状溝５６により形成された「フィン形状」が設けられているため、液体の進路が変更されて進入が阻止される。したがって、大径孔１７の内周面１９と、排水部５４の外周面との間にＯリング等のシール部材を配設することなく、前記液体を中空部５８に集中して流すことができる。また、係止爪７２は、係止部２６に係止されると共に、堰部２５によって第１のガイド部２１に不意に移動することが阻止されるため、水抜栓５０が開状態の際に、分岐部１２から外れることを防止することができる。 Next, when the drain plug 50 is opened and the liquid discharged from the pipe of the device (not shown) is discharged to the outside, the drain plug 50 (see FIGS. 1 to 3) in the locked state is moved counterclockwise. When rotated 45 degrees, the locking claw 72 moves over the weir 31 and moves from the third guide 23 to the second guide 22. In this state, when the water drain plug 50 is pulled in the distal direction, the locking claw 72 is guided to the second guide portion 22 and moves to the distal end side, and the close contact portion 52 is removed from the small diameter hole 16 (FIGS. 4 to 5). 6), the water drain plug 50 is opened. When the water drain plug 50 is in an open state, as shown in FIG. 7 in particular, the liquid discharged from the pipe flows into the large diameter hole 17 from the small diameter hole 16 and enters the hollow portion 58 through the hole 57, and from there To be discharged. At this time, the liquid flowing into the large-diameter hole 17 from the small-diameter hole 16 tries to enter between the inner peripheral surface 19 of the large-diameter hole 17 and the outer peripheral surface of the drainage portion 54. Is provided with a “fin shape” formed by a plurality of annular grooves 56, the liquid path is changed to prevent entry. Therefore, the liquid can be concentrated and flowed in the hollow portion 58 without providing a seal member such as an O-ring between the inner peripheral surface 19 of the large-diameter hole 17 and the outer peripheral surface of the drainage portion 54. . Moreover, since the latching claw 72 is latched by the latching | locking part 26 and it is prevented by the dam part 25 from moving to the 1st guide part 21 unexpectedly, when the drain plug 50 is an open state, , It can be prevented from coming off from the branching portion 12.

水抜栓５０を分岐部１２から取外す場合は、水抜栓５０が開状態に位置している時に水抜栓５０を反時計回りに約４５度回転させると、係止爪７２が堰部２５を乗り越えて、第２のガイド部２２から第１のガイド部２１に移動する。（図８〜図１０参照）。この時、水抜栓５０を反時計回りに回転させて、係止爪７２が堰部２５を乗り越えるためには、係止爪７２が堰部３１を乗り越えるために回転させる力や、係止爪７２を第１のガイド部２１から堰部２５を越えて第２のガイド部２２に移動させるために回転させる力よりも大きな力が必要となるようになっている。これによって、水抜栓５０が不意に取外し可能位置に移動してしまうことを防止でき、水抜装置１の信頼性を向上させることができる。次に、水抜栓５０を先端方向に引くと、係止爪７２が第１のガイド部２１に誘導されて先端側に移動し（図１１〜図１３参照）、係止爪７２が第１のガイド部２１の先端側から外れ、水抜栓５０が分岐部１２から取外される。 When removing the water drain plug 50 from the branching portion 12, if the water drain plug 50 is rotated approximately 45 degrees counterclockwise when the water drain plug 50 is in the open state, the locking claw 72 gets over the weir 25. The second guide portion 22 moves to the first guide portion 21. (See FIGS. 8 to 10). At this time, in order to rotate the water drain plug 50 counterclockwise so that the locking claw 72 gets over the weir part 25, the locking claw 72 rotates to get over the weir part 31, or the locking claw 72 A force larger than the force for rotating the first guide portion 21 over the weir portion 25 and the second guide portion 22 is required. As a result, the drain plug 50 can be prevented from moving to the removable position unexpectedly, and the reliability of the drain device 1 can be improved. Next, when the drain plug 50 is pulled in the distal direction, the locking claw 72 is guided to the first guide portion 21 and moves to the distal side (see FIGS. 11 to 13), and the locking claw 72 is moved to the first direction. The water drain plug 50 is removed from the branching portion 12 by being removed from the distal end side of the guide portion 21.

以上説明したように、水抜装置１は、水抜栓５０を分岐部１２に対し周方向に約４５度回転させる動作と、係止爪７２を第１のガイド部２１、第２のガイド部２２、第３のガイド部２３に沿って移動させるという簡単な動作、すなわち、ワンタッチで、水抜栓５０の開閉、閉状態のロック、水抜栓５０の取付け、取外しを行うことができ、作業性を大幅に改善することができる。また、従来のように、水口体１０の水抜栓５０が取付けられる位置（本実施の形態では分岐部１２）の内周面に、雌螺子を形成する必要がないため、加工性も向上することができる。 As described above, the water draining device 1 is configured to rotate the water drain plug 50 about 45 degrees in the circumferential direction with respect to the branch portion 12, and the locking claw 72 with the first guide portion 21, the second guide portion 22, A simple operation of moving along the third guide portion 23, that is, with one touch, the drain plug 50 can be opened and closed, the closed lock, the drain plug 50 can be attached and removed, and workability is greatly improved. Can be improved. Moreover, since it is not necessary to form a female screw in the inner peripheral surface of the position (the branch part 12 in this Embodiment) where the water drain plug 50 of the water mouth body 10 is attached like the past, workability also improves. Can do.

なお、本実施の形態では、２つの取付部７１を配設した場合について説明したが、これに限らず、取付部７１は少なくとも１つ配設すればよい。また、ガイド領域３０は、取付部７１の配設数に合わせた数で形成すればよいが、所望により、取付部７１の配設数よりも多く配設しておいてもよい。 In the present embodiment, the case where the two attachment portions 71 are provided has been described. However, the present invention is not limited thereto, and at least one attachment portion 71 may be provided. In addition, the guide region 30 may be formed in a number that matches the number of mounting portions 71, but may be more than the number of mounting portions 71, if desired.

また、本実施の形態では、水抜栓５０を分岐部１２に対し周方向に約４５度回転させる場合について説明したが、これに限らず、水抜栓５０の回転角度は、ガイド領域３０の形状や、取付部７１や分岐部１２のサイズ等により、任意に決定することができる。しかしながら、作業性等を考慮すると、水抜栓５０の回転角度は９０度以下であることが望ましい。 Further, in the present embodiment, the case where the water drain plug 50 is rotated about 45 degrees in the circumferential direction with respect to the branching portion 12 has been described. However, the rotation angle of the water drain plug 50 is not limited to this. Depending on the size of the mounting portion 71 and the branching portion 12, etc., it can be arbitrarily determined. However, in consideration of workability and the like, it is desirable that the rotation angle of the water drain plug 50 is 90 degrees or less.

本発明の水抜装置の外観を示す側面図であり、前記水抜装置の構成要素である水抜栓が閉状態である場合を示す図である。It is a side view which shows the external appearance of the drain apparatus of this invention, and is a figure which shows the case where the drain plug which is a component of the said drain apparatus is a closed state. 図１に示す水抜装置の底面図である。It is a bottom view of the water draining apparatus shown in FIG. 図２に示すIII−III線に沿った断面図の上下を逆にして示す図である。FIG. 3 is a diagram showing the cross-sectional view taken along line III-III shown in FIG. 2 upside down. 本発明の水抜装置の外観を示す側面図であり、前記水抜装置の構成要素である水抜栓が開状態である場合を示す図である。It is a side view which shows the external appearance of the drainage apparatus of this invention, and is a figure which shows the case where the drain plug which is a component of the said drainage apparatus is an open state. 図４に示す水抜装置の底面図である。It is a bottom view of the water draining apparatus shown in FIG. 図５に示すVI−VI線に沿った断面図の上下を逆にして示す図である。FIG. 6 is a diagram showing the cross-sectional view taken along line VI-VI shown in FIG. 5 upside down. 図６に示す水抜装置の一部を拡大して示す断面図である。It is sectional drawing which expands and shows a part of draining apparatus shown in FIG. 本発明の水抜装置の外観を示す側面図であり、前記水抜装置の構成要素である水抜栓が取外し可能位置にある場合を示す図である。It is a side view which shows the external appearance of the drainage apparatus of this invention, and is a figure which shows the case where the drain plug which is a component of the said drainage apparatus exists in a detachable position. 図８に示す水抜装置の底面図である。It is a bottom view of the drainage device shown in FIG. 図９に示すＸ−Ｘ線に沿った断面図の上下を逆にして示す図である。FIG. 10 is a diagram showing the cross-sectional view taken along line XX shown in FIG. 9 upside down. 本発明の水抜装置の外観を示す側面図であり、前記水抜装置の構成要素である水抜栓が取外される直前の状態を示す図である。It is a side view which shows the external appearance of the drainage apparatus of this invention, and is a figure which shows the state immediately before the drain plug which is a component of the said drainage apparatus is removed. 図１１に示す水抜装置の底面図である。It is a bottom view of the drain apparatus shown in FIG. 図１２に示すXIII−XIII線に沿った断面図である。It is sectional drawing along the XIII-XIII line | wire shown in FIG. 図１１に示す水抜装置の一部を拡大して示す側面図である。It is a side view which expands and shows a part of draining apparatus shown in FIG.

Explanation of symbols

１…水抜装置、１０…水口体、１１…水口本体、１２…分岐部、２１…第１のガイド部、２２…第２のガイド部、２３…第３のガイド部、２４、２６、２７、２８、２９…係止部、２５、３１…堰部、３０…ガイド領域、５０…水抜栓、５１…挿入部、５２…密着部、５４…排水部、５６…環状溝、６０…栓本体、７１…取付部 DESCRIPTION OF SYMBOLS 1 ... Drain apparatus, 10 ... Water mouth body, 11 ... Water mouth main body, 12 ... Branch part, 21 ... 1st guide part, 22 ... 2nd guide part, 23 ... 3rd guide part, 24, 26, 27, 28, 29 ... Locking part, 25, 31 ... Weir part, 30 ... Guide region, 50 ... Water drain plug, 51 ... Insertion part, 52 ... Adhering part, 54 ... Drain part, 56 ... Circular groove, 60 ... Plug body, 71 ... Mounting part

Claims

A drain device for discharging liquid from the inside of the device,
A water spout connected to the pipe of the device and having a drainage channel for discharging the liquid flowing through the pipe to the outside;
A water stopper detachably attached to the water body;
With
The drain plug has a plug main body having an insertion portion that is removably inserted into the drainage channel, and an attachment portion that is disposed on the plug main body and removably attaches the plug main body to the water mouth body. Have
The outer peripheral surface of the water mouth body is adjacent to one circumferential direction side of the first guide portion and the first guide portion for guiding the attachment portion in the insertion / removal direction, and the attachment portion is inserted and removed. And a second guide portion extending toward the insertion direction side with respect to the insertion direction tip of the first guide portion, and disposed closer to the insertion direction side than the first guide portion. And a guide region having a third guide portion that is adjacent to the insertion direction side and the other circumferential direction side of the second guide portion, and that guides the attachment portion in the circumferential direction.
The mounting portion is movable between the adjacent guide portions and is locked to a part of the second guide portion and a part of the third guide portion,
The drain plug locks the closed state when the mounting portion is guided to the third guide portion, and the closed state and the open state when the mounting portion is guided to the second guide portion. The water draining device can be removed from the water mouth body when the mounting portion is guided to the first guide portion.

The drainage device according to claim 1, wherein the second guide portion and the third guide portion are formed with locking portions for locking the mounting portion at both ends in the insertion / removal direction, respectively.

The insertion portion is detachably attached to an inner peripheral surface that defines the drainage flow path, and closes the water drain plug when in close contact with the inner peripheral surface, and the water drain plug when the close contact is released. A close contact portion to be in an open state, and a hollow shape, and when the water drain plug is in an open state, a drainage portion that discharges the liquid to the outside through the hollow portion,
The outer peripheral surface of the drainage portion is substantially in contact with an inner peripheral surface that defines the drainage flow path, and a plurality of annular grooves are formed at intervals in a part of the outer peripheral surface of the drainage portion. The drainage device according to claim 1 or 2.

The drainage device according to any one of claims 1 to 3, wherein the attachment portion moves between the adjacent guide portions when the drain plug rotates at a predetermined angle in a circumferential direction of the water mouth body. .

The drainage device according to claim 4, wherein the predetermined angle is 90 degrees or less.

6. The dam portion is formed between the adjacent guide portions so as to enable movement of the mounting portion when a predetermined or more moving force is applied to the mounting portion. The drainage device according to claim 1.

The drainage according to any one of claims 1 to 6, comprising a plurality of the mounting portions, and forming the guide region corresponding to each of the plurality of mounting portions on an outer peripheral surface of the water mouth body. apparatus.