JP2002054769A - Sealing structure of water channel and the like - Google Patents
Sealing structure of water channel and the likeInfo
- Publication number
- JP2002054769A JP2002054769A JP2000240862A JP2000240862A JP2002054769A JP 2002054769 A JP2002054769 A JP 2002054769A JP 2000240862 A JP2000240862 A JP 2000240862A JP 2000240862 A JP2000240862 A JP 2000240862A JP 2002054769 A JP2002054769 A JP 2002054769A
- Authority
- JP
- Japan
- Prior art keywords
- packing
- pressing
- water
- connection member
- sealing structure
- 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.)
- Pending
Links
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Joints With Pressure Members (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】本発明は、水経路等のシール
構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing structure for a water path or the like.
【０００２】[0002]
【従来の技術】従来の水経路等のシール構造は、図４に
示すように、ウォータバルブ２０の接続部２２がねじ溝
２２ａによって袋ナット２６の内面側部２６ａに沿って
ねじ込まれ、前記接続部２２の端面２２ｂがパッキン２
８を押圧してシールする。2. Description of the Related Art As shown in FIG. 4, in a conventional sealing structure for a water path or the like, a connecting portion 22 of a water valve 20 is screwed along an inner surface side portion 26a of a cap nut 26 by a screw groove 22a. The end face 22b of the part 22 is
Press 8 to seal.
【０００３】[0003]
【発明が解決しようとする課題】しかし、このようなシ
ール構造では図５に示すように、前記接続部２２がパッ
キン２８を適正な力で押圧される場合（ａ）においては
所望のシール力を発揮するが、押圧力が弱い場合（ｂ）
には所望のシール力を得ることができず水漏れが発生す
る可能性がある。また、押圧力が強い場合（ｃ）には接
続部２２の端面２２ｂとパッキン２８との密着位置にズ
レが生じて部分的に過剰加圧となりパッキン２８の寿命
を縮めることとなる。However, in such a sealing structure, as shown in FIG. 5, when the connecting portion 22 presses the packing 28 with an appropriate force (a), the desired sealing force is not obtained. Demonstrates, but the pressing force is weak (b)
Cannot obtain a desired sealing force, and water leakage may occur. When the pressing force is strong (c), the contact position between the end face 22b of the connecting portion 22 and the packing 28 is displaced, and the pressure is partially excessively increased, thereby shortening the life of the packing 28.
【０００４】本発明は上記問題に対処するためになされ
たもので、その目的は、常に適正な力でパッキンを押圧
し、所望のシール力を得ることができる水経路等のシー
ル構造を提供することにある。The present invention has been made to address the above-mentioned problem, and an object thereof is to provide a sealing structure such as a water path which can always press a packing with an appropriate force to obtain a desired sealing force. It is in.
【０００５】[0005]
【課題を解決するための手段】前記課題を克服し、所期
の目的を達成するために、本発明に係る水経路等のシー
ル構造は、内面底部を有するとともに内面側部にねじ溝
を有する第１接続部材と、この第１接続部材の内面にね
じ込まれ前記底部と接触してねじ込みを停止させる停止
部と、前記第１接続部材の内面底部と協働してパッキン
を押圧する押圧部とを有する第２接続部材とを備え、前
記押圧部の窪み寸法がパッキンの高さ寸法よりも所定寸
法短く設定されている。In order to overcome the above-mentioned problems and achieve the intended object, a seal structure for a water path or the like according to the present invention has an inner bottom surface and a thread groove on an inner surface side. A first connecting member, a stopping portion screwed into the inner surface of the first connecting member and in contact with the bottom to stop the screwing; and a pressing portion pressing the packing in cooperation with the inner surface bottom of the first connecting member. And a depression dimension of the pressing portion is set to be shorter than a height dimension of the packing by a predetermined dimension.
【０００６】[0006]
【発明の実施の形態】次に本発明に係る水経路等のシー
ル構造につき、好適な実施例を挙げて、添付図面を参照
しながら以下説明する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a sealing structure for a water path and the like according to the present invention.
【０００７】図１に示すように、給水管路に設けられる
ウォータバルブ１０は、内部に配設された弁（図示せ
ず）の開閉により通止水状態を制御する。前記ウォータ
バルブ１０の一端にはねじ溝が加工された接続部１２
（第２接続部材）が設けられ、給水ホース１４の袋ナッ
ト１６（第１接続部材）とのねじ込みによりウォータバ
ルブ１０と給水ホース１４とが接続される。As shown in FIG. 1, a water valve 10 provided in a water supply line controls a closed water state by opening and closing a valve (not shown) provided therein. One end of the water valve 10 has a threaded connection portion 12
A (second connection member) is provided, and the water valve 10 and the water supply hose 14 are connected by screwing the water supply hose 14 into the cap nut 16 (first connection member).
【０００８】前記接続部１２は図２および図３に示すよ
うに、ねじ溝加工された外側面１２ａを有し、前記袋ナ
ット１６の内面側部１６ａに設けられたねじ溝にねじ込
まれる（図３（ａ））。さらにねじ込まれると、接続部
１２のパッキン押圧面１２ｂ（押圧部）が前記袋ナット
１６の内面底部１６ｂに載置されたゴム等の弾性体で形
成されたパッキン１８と接触する（図３（ｂ））。この
状態からさらにねじ込まれると、パッキン１８が前記パ
ッキン押圧面１２ｂに押圧され変形し、接続部１２の停
止面１２ｃ（停止部）が袋ナット１６の内面底部１６ｂ
と接触し、ねじ込みを停止させる。また、前記接続部１
２のパッキン押圧面１２ｂと停止面１２ｃとの間に形成
される立ち上がり面１２ｄはパッキン１８の位置ズレ防
止用の案内部として機能する。As shown in FIGS. 2 and 3, the connection portion 12 has a threaded outer surface 12a, and is screwed into a thread groove provided on an inner surface side portion 16a of the cap nut 16 (see FIG. 2). 3 (a)). When further screwed in, the packing pressing surface 12b (pressing portion) of the connection portion 12 comes into contact with the packing 18 formed of an elastic body such as rubber placed on the inner bottom surface 16b of the cap nut 16 (FIG. 3 (b)). )). When the screw is further screwed from this state, the packing 18 is pressed and deformed by the packing pressing surface 12b, and the stop surface 12c (stop portion) of the connecting portion 12 is moved to the inner bottom 16b of the cap nut 16.
To stop screwing. In addition, the connection unit 1
The rising surface 12d formed between the second packing pressing surface 12b and the stop surface 12c functions as a guide for preventing the packing 18 from shifting.
【０００９】前記立ち上がり面１２ｂの高さ寸法（窪み
寸法）は、パッキン１８の高さや硬さ等との関係で決め
られるものであり、パッキン１８の高さ寸法よりも所定
寸法短く設定されている。また、その寸法差によって発
生するシール力は、水経路に流れる水の水圧に耐えられ
るシール力を有している。従って、ねじ込みを常に前記
停止面１２ｃが内面底部１６ｂに接触停止するまで行う
ことによって、常に同じシール力を得ることができる。The height (recess) of the rising surface 12b is determined in relation to the height and hardness of the packing 18, and is set to be shorter than the height of the packing 18 by a predetermined dimension. . Further, the sealing force generated by the dimensional difference has a sealing force that can withstand the water pressure of the water flowing through the water path. Therefore, the same sealing force can be always obtained by always screwing in until the stop surface 12c stops contacting the inner surface bottom 16b.
【００１０】なお、本実施形態ではパッキンが袋ナット
の内面底部に載置されたものについて説明したが、これ
に限定されるものではなく、例えば接続部のパッキン押
圧面に予めパッキンを取り付けられているようなもので
も良い。この場合にはウォータバルブと給水ホースとを
外した際にパッキンが外に露出するのでパッキンの交換
が容易となる。また、本実施形態ではウォータバルブと
給水ホースとの接続で説明したが、これに限定されるも
のではなく、例えばホースとホースとを接続するときに
も採用できる。In this embodiment, the packing is described as being placed on the bottom of the inner surface of the cap nut. However, the present invention is not limited to this. For example, the packing is previously attached to the packing pressing surface of the connecting portion. It can be something like In this case, when the water valve and the water supply hose are removed, the packing is exposed to the outside, so that the packing can be easily replaced. In the present embodiment, the connection between the water valve and the water supply hose has been described. However, the present invention is not limited to this. For example, the present invention can be adopted when connecting a hose to a hose.
【００１１】[0011]
【発明の効果】以上説明した如く、本発明に係る水経路
等のシール構造によれば、常に適正な力でパッキンを押
圧することができるので水漏れがなくなるとともに、パ
ッキンを部分的に過剰加圧することがなくなりパッキン
の寿命を縮めることがない。As described above, according to the seal structure for the water path or the like according to the present invention, the packing can always be pressed with an appropriate force, so that water leakage is eliminated and the packing is partially excessively added. No pressure is applied and the life of the packing is not shortened.
【図１】本発明の実施例に係る水経路等の概略説明図で
ある。FIG. 1 is a schematic explanatory diagram of a water path and the like according to an embodiment of the present invention.
【図２】本発明の実施例に係る水経路等のシール構造を
示す要部拡大図である。FIG. 2 is an enlarged view of a main part showing a seal structure for a water path and the like according to the embodiment of the present invention.
【図３】本発明の実施例に係る水経路等のシール構造を
示す状態図である。FIG. 3 is a state diagram showing a seal structure for a water path or the like according to the embodiment of the present invention.
【図４】従来技術に係る水経路等のシール構造を示す要
部拡大図である。FIG. 4 is an enlarged view of a main part showing a seal structure for a water path and the like according to the conventional technique.
【図５】従来技術に係る水経路等のシール構造を示す部
分拡大図である。FIG. 5 is a partially enlarged view showing a sealing structure for a water path or the like according to the conventional technique.
【符号の説明】 １０ ウォータバルブ １２ 接続部 １４ 給水ホース １６ 袋ナット １８ パッキン[Description of Signs] 10 Water valve 12 Connection part 14 Water supply hose 16 Cap nut 18 Packing
Claims (1)
じ溝を有する第１接続部材と、 この第１接続部材の内面にねじ込まれ前記底部と接触し
てねじ込みを停止させる停止部と、前記第１接続部材の
内面底部と協働してパッキンを押圧する押圧部とを有す
る第２接続部材とを備え、 前記押圧部の窪み寸法がパッキンの高さ寸法よりも所定
寸法短く設定されていることを特徴とする水経路等のシ
ール構造。A first connecting member having an inner bottom surface and a thread groove on an inner surface side portion; a stopping portion screwed into an inner surface of the first connecting member to stop screwing by contacting the bottom portion; A second connecting member having a pressing portion that presses the packing in cooperation with the bottom surface of the inner surface of the first connecting member, wherein a depression dimension of the pressing portion is set to be shorter than a height dimension of the packing by a predetermined dimension. A seal structure for a water path or the like characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000240862A JP2002054769A (en) | 2000-08-09 | 2000-08-09 | Sealing structure of water channel and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000240862A JP2002054769A (en) | 2000-08-09 | 2000-08-09 | Sealing structure of water channel and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002054769A true JP2002054769A (en) | 2002-02-20 |
Family
ID=18732151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000240862A Pending JP2002054769A (en) | 2000-08-09 | 2000-08-09 | Sealing structure of water channel and the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002054769A (en) |
-
2000
- 2000-08-09 JP JP2000240862A patent/JP2002054769A/en active Pending
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