JP5081691B2

JP5081691B2 - Fluid pipe obturator

Info

Publication number: JP5081691B2
Application number: JP2008089640A
Authority: JP
Inventors: 良太松村
Original assignee: Inaba Denki Sangyo Co Ltd
Current assignee: Inaba Denki Sangyo Co Ltd
Priority date: 2008-03-31
Filing date: 2008-03-31
Publication date: 2012-11-28
Anticipated expiration: 2028-03-31
Also published as: JP2009243551A

Description

本発明は、給排水管や給湯管、ガス管、薬液輸送管、排液輸送管などの流体管の先端部を閉塞するのに使用される流体管閉塞具に関する。 The present invention relates to a fluid tube closing tool used to close the distal end portion of a fluid tube such as a water supply / drainage tube, a hot water supply tube, a gas tube, a chemical solution transport tube, or a drainage transport tube.

従来、この種の流体管閉塞具としては、エストラマー系素材からなる合成ゴム製のゴムパッキンと、これを流体管の内部において管軸心方向から挟圧操作自在な操作部材としての金属製の挟圧機構とから構成されたものが知られている。つまり、当該流体管閉塞具は、挟圧機構によって流体管の内部でゴムパッキンを管軸心方向から挟圧操作することで、ゴムパッキンの外周面と流体管の内周面とが圧着する状態までゴムパッキンを膨張拡径させて流体管の先端部を閉塞する。 Conventionally, as this type of fluid pipe closing device, a synthetic rubber rubber packing made of an elastomer material and a metal clamping member as an operation member that can be clamped and operated from the axial direction of the pipe inside the fluid pipe. A pressure mechanism is known. In other words, the fluid tube obturator is in a state where the outer peripheral surface of the rubber packing and the inner peripheral surface of the fluid tube are pressure-bonded by pressing the rubber packing from the axial direction of the tube inside the fluid tube by the clamping mechanism. The rubber packing is expanded and expanded until the tip of the fluid pipe is closed.

ところが、上記の如き従来の流体管閉塞具では、管内圧力が耐用圧力を不測に超えた場合には、その管内圧力によって流体管の先端部から抜け飛んでしまい、そのことで、作業者に怪我を負わせたり、或いは、建築物の内部を破損させたりする問題があった。 However, in the conventional fluid tube obturator as described above, when the pressure in the tube unexpectedly exceeds the service pressure, the pressure in the tube will cause the fluid tube to escape from the tip of the fluid tube, which may injure the operator. There is a problem of damaging the inside of the building or damaging the inside of the building.

本発明は、上述の実情に鑑みて為されたものであって、その主たる課題は、管内圧力によって流体管の先端部から抜け飛ぶ不具合を効果的且つ効率的に抑止することのできる流体管閉塞具を提供する点にある。 The present invention has been made in view of the above-described circumstances, and its main problem is that the fluid pipe can be effectively and efficiently prevented from malfunctioning from the tip of the fluid pipe due to the pressure in the pipe. It is in providing tools.

流体管の先端部を閉塞する流体管閉塞部と、流体管が挿通される流体管挿通部と、前記流体管閉塞部と前記流体管挿通部とを連結する連結部から構成され、
前記連結部が、管内圧力で前記流体管閉塞部が移動するときの引張力で前記流体管挿通部を傾動させるように、流体管挿通部の一側半領域に接続されているとともに、
前記流体管挿通部には、前記引張力によって流体管の外周面に掛止する掛止部が設けられている。
A fluid pipe closing part that closes the tip of the fluid pipe, a fluid pipe insertion part through which the fluid pipe is inserted, and a connecting part that connects the fluid pipe closing part and the fluid pipe insertion part,
The connecting part is connected to one side half region of the fluid pipe insertion part so as to tilt the fluid pipe insertion part with a tensile force when the fluid pipe closing part moves due to the pressure in the pipe,
Wherein the fluid conduit insertion portion, engaging portion for engaging the outer peripheral surface of the fluid pipe is provided by the pulling force.

上記構成によれば、管内圧力で前記流体管閉塞部が移動するとき、その移動に伴う連結部を介しての引張力によって前記流体管挿通部の前記掛止部が流体管の外周面に掛止する形態で流体管挿通部の移動を抑止することができるから、流体管からの抜け飛びを効果的且つ効率的に抑止することができる。 According to the above configuration, when the fluid pipe closing portion moves due to the pressure in the pipe, the latching portion of the fluid pipe insertion portion is hung on the outer peripheral surface of the fluid pipe by the tensile force through the connecting portion accompanying the movement. Since the movement of the fluid pipe insertion portion can be suppressed in such a manner that it stops, it is possible to effectively and efficiently suppress the escape from the fluid pipe.

前記連結部が、流体管挿通部の一側半領域における径方向の外側部位に接続されている。
The connecting portion is connected to the outer portion in the radial direction in the one side half region of the fluid tube insertion portion.

つまり、流体管挿通部における連結部との接続部位は、前記引張力によって流体管挿通部を傾動操作するための操作支点となる。そして、上記構成によれば、流体管挿通部における傾動中心軸（或いは、傾動させるための揺動軸）と前記操作支点との距離を極力長くすることができるから、その分、流体管挿通部に対する操作力を高めることができて、掛止部と流体管の外周面との掛止状態を効率的に現出させることができる。 That is, the connection part with the connection part in the fluid pipe insertion part becomes an operation fulcrum for tilting the fluid pipe insertion part by the tensile force. And according to the said structure, since the distance of the tilting center axis | shaft (or rocking | fluctuation axis | shaft for tilting) in the fluid pipe insertion part and the said operation fulcrum can be lengthened as much as possible, the fluid pipe insertion part correspondingly Thus, the latching state between the latching portion and the outer peripheral surface of the fluid pipe can be efficiently revealed.

前記掛止部が、前記引張力で流体管の外周面に食い込み可能な尖状又は角状の食い込み部から構成されている。
It said hook portion is configured from the tension can bite into the outer peripheral surface of the fluid tube in a pointed or angular-shaped biting portion.

上記構成によれば、前記引張力によって前記流体管挿通部の前記食い込み部が流体管の外周面に食い込む形態で流体管の外周面に掛止するから、その掛止による流体管挿通部の移動規制力を一層高めることができ、これにより、流体管からの抜け飛びを一層効果的且つ効率的に抑止することができる。 According to the above configuration, since the biting portion of the fluid pipe insertion portion is engaged with the outer peripheral surface of the fluid pipe by the tensile force, the fluid pipe insertion portion is moved by the engagement. It is possible to further increase the regulation force, and thereby more effectively and efficiently suppress the escape from the fluid pipe.

前記食い込み部が前記流体管挿通部の一側半領域と他側半領域の夫々に設けられ、
前記流体管挿通部の一側半領域において前記食い込み部の先端が管先側に配置されているとともに、前記流体管挿通部の他側半領域において前記食い込み部の先端が管中間側に配置されている。
The biting portion is provided in each of the one-side half region and the other-side half region of the fluid pipe insertion portion,
The tip of the biting part is disposed on the pipe tip side in one half region of the fluid pipe insertion part, and the tip of the biting part is disposed on the pipe intermediate side in the other half region of the fluid pipe insertion part. It is .

つまり、前記流体管挿通部は、前記引張力によって前記一側半領域側が管先側に位置する傾斜姿勢となるように操作されるが、流体管挿通部の一側半領域において前記食い込み部の先端が管先側に配置され、且つ、流体管挿通部の他側半領域において前記食い込み部の先端が管中間側に配置されている上記構成によれば、前記引張力による流体管挿通部の操作過程で前記食い込み部の夫々を流体管の外周面に効率的に食い込ませることができる。 That is, the fluid pipe insertion portion is operated by the tensile force so that the one side half region side is in an inclined posture located on the pipe tip side, but in the one side half region of the fluid pipe insertion portion, According to the above configuration in which the tip is arranged on the pipe tip side and the tip of the biting part is arranged on the pipe middle side in the other half region of the fluid pipe insertion part, the fluid pipe insertion part by the tensile force Each of the biting portions can be efficiently bited into the outer peripheral surface of the fluid pipe during the operation process.

前記連結部が、前記流体管挿通部に流体管を挿通させ、且つ、流体管閉塞部で流体管の先端部を閉塞した状態において流体管挿通部を前記一側半領域側が管先側に位置する傾斜姿勢に付勢するように、流体管挿通部の外端面に対して流体管挿通部の径方向から接続されている。
In the state where the fluid pipe is inserted into the fluid pipe insertion part and the distal end portion of the fluid pipe is closed by the fluid pipe closing part, the connecting part is located at the one end half region side on the pipe tip side. It connects from the radial direction of a fluid pipe insertion part with respect to the outer end surface of a fluid pipe insertion part so that it may urge to the inclined posture which does .

上記構成によれば、前記流体管挿通部に流体管を挿通させ、且つ、流体管閉塞部で流体管の先端部を閉塞した状態において、流体管挿通部を前記一側半領域側が管先側に位置する傾斜姿勢にあるから、その分、前記引張力によって流体管挿通部の傾動操作量を少なくすることができて、前記引張力が作用したときから前記食い込み部が流体管の外周面に食い込むまでの時間の短縮化を図ることができる。 According to the above configuration, in the state where the fluid pipe is inserted through the fluid pipe insertion portion and the distal end portion of the fluid pipe is closed by the fluid pipe closing portion, the one half-region side of the fluid pipe insertion portion is the pipe tip side. Therefore, the amount of tilting operation of the fluid pipe insertion portion can be reduced by the amount of the tensile force, and the biting portion is brought into contact with the outer peripheral surface of the fluid pipe when the tensile force is applied. It is possible to shorten the time until the bite.

前記流体管閉塞部を構成する部材と、前記連結部と前記流体管挿通部を構成する部材とが脱着自在に構成されている、
又は、前記流体管閉塞部と前記連結部を構成する部材と、前記流体管挿通部を構成する部材とが脱着自在に構成されている。
The member constituting the fluid pipe closing part, and the member constituting the connecting part and the fluid pipe insertion part are configured to be detachable.
Or the member which comprises the said fluid pipe obstruction | occlusion part and the said connection part, and the member which comprises the said fluid pipe insertion part are comprised so that attachment or detachment is possible .

上記構成によれば、上述の如き抜け飛び阻止機能を発揮し得る前記流体管挿通部を使用する使用状態と前記流体管挿通部を使用しない使用状態とを使用環境等に応じ選択的に使い分けることができる。 According to the above configuration, the usage state in which the fluid pipe insertion portion that can exhibit the above-described skipping prevention function and the usage state in which the fluid pipe insertion portion is not used are selectively used depending on the usage environment or the like. Can do.

また、前記流体管閉塞部を構成する部材と、前記連結部と前記流体管挿通部を構成する部材とが脱着自在に構成されている場合では、例えば、既存の流体管閉塞部を構成する部材に対して前記連結部と前記流体管挿通部を構成する部材を取り付けることによって既存の流体管閉塞部を構成する部材に対し事後的に抜け飛び措置機能を付加することも可能になる。
そして、本発明の第１の特徴構成は、流体管の先端部を閉塞する流体管閉塞部と、流体管が挿通される流体管挿通部と、前記流体管閉塞部と前記流体管挿通部とを連結する連結部から構成され、
前記連結部が、管内圧力で前記流体管閉塞部が移動するときの引張力で前記流体管挿通部を傾動させるように、流体管挿通部の一側半領域に接続され、
前記流体管挿通部に流体管を挿通させ、且つ、流体管閉塞部で流体管の先端部を閉塞した状態において流体管挿通部がそれの一側半領域側を管先側に位置させた傾斜姿勢に付勢されているとともに、
前記流体管挿通部には、前記引張力によって流体管の外周面に掛止する掛止部が設けられ、
前記流体管閉塞部が、流体管の先端部を密着状態で閉塞可能な栓部材と、この栓部材を流体管の先端部に押圧操作して当該栓部材と流体管の先端部とを密着させる操作部材とから構成され、
前記操作部材と流体管挿通部及び連結部とが樹脂で一体的に成形され、
前記連結部の他端部は、前記操作部材の外周面の開口端部に一体的に接続されている点にある。
本発明の第２の特徴構成は、流体管の先端部を閉塞する流体管閉塞部と、流体管が挿通される流体管挿通部と、前記流体管閉塞部と前記流体管挿通部とを連結する連結部から構成され、
前記連結部が、管内圧力で前記流体管閉塞部が移動するときの引張力で前記流体管挿通部を傾動させるように、流体管挿通部の一側半領域に接続され、
前記流体管挿通部に流体管を挿通させ、且つ、流体管閉塞部で流体管の先端部を閉塞した状態において流体管挿通部がそれの一側半領域側を管先側に位置させた傾斜姿勢に付勢されているとともに、
前記流体管挿通部には、前記引張力によって流体管の外周面に掛止する掛止部が設けられ、
前記連結部と流体管挿通部とが樹脂で一体的に成形され、
前記流体管閉塞部が、流体管の先端部を密着状態で閉塞可能な栓部材と、この栓部材を流体管の先端部に押圧操作して当該栓部材と流体管の先端部とを密着させる操作部材とから構成され、
前記連結部の他端部は、前記操作部材の外周面の開口端部に一体的に接続されている点にある。
本発明の第３の特徴構成は、流体管の先端部を閉塞する流体管閉塞部と、流体管が挿通される流体管挿通部と、前記流体管閉塞部と前記流体管挿通部とを連結する連結部から構成され、
前記連結部が、管内圧力で前記流体管閉塞部が移動するときの引張力で前記流体管挿通部を傾動させるように、流体管挿通部の一側半領域に接続され、
前記流体管挿通部に流体管を挿通させ、且つ、流体管閉塞部で流体管の先端部を閉塞した状態において流体管挿通部がそれの一側半領域側を管先側に位置させた傾斜姿勢に付勢されているとともに、
前記流体管挿通部には、前記引張力によって流体管の外周面に掛止する掛止部が設けられ、
前記流体管閉塞部が、流体管の先端部を密着状態で閉塞可能な栓部材と、この栓部材を流体管の先端部に押圧操作して当該栓部材と流体管の先端部とを密着させる操作部材とから構成され、
前記操作部材と連結部とが樹脂で一体的に成形され、
前記連結部の他端部は、前記操作部材の外周面の開口端部に一体的に接続されている点にある。
本発明の第４の特徴構成は、流体管の先端部を閉塞する流体管閉塞部と、流体管が挿通される流体管挿通部と、前記流体管閉塞部と前記流体管挿通部とを連結する連結部から構成され、
前記連結部が、管内圧力で前記流体管閉塞部が移動するときの引張力で前記流体管挿通部を傾動させるように、流体管挿通部の一側半領域に接続され、
前記流体管挿通部に流体管を挿通させ、且つ、流体管閉塞部で流体管の先端部を閉塞した状態において流体管挿通部がそれの一側半領域側を管先側に位置させた傾斜姿勢に付勢されているとともに、
前記流体管挿通部には、前記引張力によって流体管の外周面に掛止する掛止部が設けられ、
前記流体管閉塞部が、流体管の先端部を密着状態で閉塞可能な栓部材と、この栓部材を流体管の先端部に押圧操作して当該栓部材と流体管の先端部とを密着させる操作部材とから構成され、
前記連結部の他端部は、前記操作部材の外周面の開口端部に一体的に接続されている点にある。 In the case where the member constituting the fluid pipe closing part and the member constituting the connecting part and the fluid pipe insertion part are configured to be detachable, for example, the member constituting the existing fluid pipe closing part On the other hand, by attaching the members constituting the connecting portion and the fluid pipe insertion portion, it is possible to add a function for preventing the dropout to the members constituting the existing fluid pipe closing portion.
And the 1st characteristic composition of the present invention is a fluid pipe closing part which closes the tip part of a fluid pipe, a fluid pipe insertion part through which a fluid pipe is inserted, the fluid pipe blocking part and the fluid pipe insertion part, It consists of a connecting part that connects
The connecting part is connected to one side half region of the fluid pipe insertion part so as to tilt the fluid pipe insertion part with a tensile force when the fluid pipe closing part moves due to the pressure in the pipe,
Inclination in which the fluid pipe is inserted into the fluid pipe insertion portion, and the fluid pipe insertion portion is positioned on one side half region side on the pipe tip side in the state where the fluid pipe closing portion closes the tip of the fluid pipe. Being urged by posture,
The fluid pipe insertion part is provided with a latching part that latches on the outer peripheral surface of the fluid pipe by the tensile force,
The fluid pipe closing portion closes the distal end portion of the fluid pipe in a close contact state, and presses the stopper member against the distal end portion of the fluid pipe to bring the stopper member into contact with the distal end portion of the fluid pipe. It consists of an operation member,
The operation member, the fluid pipe insertion portion and the connection portion are integrally formed of resin,
The other end of the connecting portion is integrally connected to the open end of the outer peripheral surface of the operation member.
A second characteristic configuration of the present invention includes a fluid tube blocking portion that blocks a tip portion of a fluid tube, a fluid tube insertion portion through which the fluid tube is inserted, and the fluid tube blocking portion and the fluid tube insertion portion connected to each other. Composed of connecting parts,
The connecting part is connected to one side half region of the fluid pipe insertion part so as to tilt the fluid pipe insertion part with a tensile force when the fluid pipe closing part moves due to the pressure in the pipe,
Inclination in which the fluid pipe is inserted into the fluid pipe insertion portion, and the fluid pipe insertion portion is positioned on one side half region side on the pipe tip side in the state where the fluid pipe closing portion closes the tip of the fluid pipe. Being urged by posture,
The fluid pipe insertion part is provided with a latching part that latches on the outer peripheral surface of the fluid pipe by the tensile force ,
The connecting portion and the fluid pipe insertion portion are integrally formed of resin ,
The fluid pipe closing portion closes the distal end portion of the fluid pipe in a close contact state, and presses the stopper member against the distal end portion of the fluid pipe to bring the stopper member into contact with the distal end portion of the fluid pipe. It consists of an operation member,
The other end of the connecting portion is integrally connected to the open end of the outer peripheral surface of the operation member.
A third characteristic configuration of the present invention includes a fluid pipe closing portion that closes a distal end portion of a fluid pipe, a fluid pipe insertion portion through which the fluid pipe is inserted, and the fluid tube closing portion and the fluid pipe insertion portion connected to each other. Composed of connecting parts,
The connecting part is connected to one side half region of the fluid pipe insertion part so as to tilt the fluid pipe insertion part with a tensile force when the fluid pipe closing part moves due to the pressure in the pipe,
Inclination in which the fluid pipe is inserted into the fluid pipe insertion portion, and the fluid pipe insertion portion is positioned on one side half region side on the pipe tip side in the state where the fluid pipe closing portion closes the tip of the fluid pipe. Being urged by posture,
The fluid pipe insertion part is provided with a latching part that latches on the outer peripheral surface of the fluid pipe by the tensile force ,
The fluid pipe closing portion closes the distal end portion of the fluid pipe in a close contact state, and presses the stopper member against the distal end portion of the fluid pipe to bring the stopper member into contact with the distal end portion of the fluid pipe. It consists of an operation member ,
The operation member and the connecting portion are integrally formed of resin,
The other end of the connecting portion is integrally connected to the open end of the outer peripheral surface of the operation member.
According to a fourth feature of the present invention, a fluid tube closing portion that closes a distal end portion of a fluid tube, a fluid tube insertion portion through which the fluid tube is inserted, and the fluid tube blocking portion and the fluid tube insertion portion are connected to each other. Composed of connecting parts,
The connecting part is connected to one side half region of the fluid pipe insertion part so as to tilt the fluid pipe insertion part with a tensile force when the fluid pipe closing part moves due to the pressure in the pipe,
Inclination in which the fluid pipe is inserted into the fluid pipe insertion portion, and the fluid pipe insertion portion is positioned on one side half region side on the pipe tip side in the state where the fluid pipe closing portion closes the tip of the fluid pipe. Being urged by posture,
The fluid pipe insertion part is provided with a latching part that latches on the outer peripheral surface of the fluid pipe by the tensile force ,
The fluid pipe closing portion closes the distal end portion of the fluid pipe in a close contact state, and presses the stopper member against the distal end portion of the fluid pipe to bring the stopper member into contact with the distal end portion of the fluid pipe. It consists of an operation member,
The other end of the connecting portion is integrally connected to the open end of the outer peripheral surface of the operation member.

図１は、例えば、水圧検査（詳しくは、所定水圧下における所定時間の漏水確認検査）等の目的で合成樹脂製の給水管Ｐ（流体管の一例、液体輸送管の一例）の先端部ｐ２を閉塞するのに使用される水圧検査プラグＴ（流体管密封具の一例）を示す。 FIG. 1 shows, for example, a tip p2 of a synthetic resin water supply pipe P (an example of a fluid pipe, an example of a liquid transport pipe) for the purpose of water pressure inspection (specifically, a water leakage confirmation inspection for a predetermined time under a predetermined water pressure). 1 shows a hydraulic test plug T (an example of a fluid pipe sealer) used to close the pipe.

当該水圧検査プラグＴは、給水管Ｐの先端部ｐ２を閉塞する状態で給水管Ｐの先端部ｐ２に装着されるプラグ本体部１（流体管閉塞部の一例）と、水圧検査プラグＴが給水管Ｐから抜け飛ぶのを阻止する抜け飛び阻止部１６とから構成されている。 The water pressure test plug T includes a plug main body 1 (an example of a fluid pipe blockage portion) that is attached to the front end portion p2 of the water supply pipe P in a state where the front end portion p2 of the water supply pipe P is closed, and the water pressure test plug T supplies water. It is configured with a skip prevention part 16 that prevents the pipe P from jumping out.

前記プラグ本体部１は、給水管Ｐの先端部ｐ２を密着状態で閉塞可能な栓部材２と、操作者による操作によって栓部材２を押圧する状態で栓部材２を給水管Ｐの側に移動操作して栓部材２と給水管Ｐの先端部ｐ２とを密着させる操作部材３とから構成されている。 The plug main body 1 moves the plug member 2 toward the water supply pipe P in a state where the plug member 2 can close the tip part p2 of the water supply pipe P in a close contact state and the plug member 2 is pressed by the operation of the operator. The operation member 3 is configured to be operated to bring the plug member 2 and the tip end portion p2 of the water supply pipe P into close contact with each other.

前記栓部材２は、図１、図４に示すように、給水管Ｐの内部に配置可能な形状、具体的には、外周面２ｂが給水管Ｐの内径にほぼ近い径で、且つ、下面部２ａ（給水管側面）が閉塞されて上面部が開放された略コップ状の円筒体形状に構成されている。 As shown in FIGS. 1 and 4, the plug member 2 has a shape that can be disposed inside the water supply pipe P. Specifically, the outer peripheral surface 2 b has a diameter substantially close to the inner diameter of the water supply pipe P, and a lower surface. The portion 2a (side surface of the water supply pipe) is closed and is configured in a substantially cup-like cylindrical shape with the upper surface portion opened.

一方、前記操作部材３は、図１〜図３に示すように、給水管Ｐの外部に配置可能な形状、具体的には、内周面３ａが給水管Ｐの外径にほぼ近い径の円筒状で、且つ、外周面３ｂが略六角筒状の略変形角筒形状に構成されている。 On the other hand, as shown in FIGS. 1 to 3, the operation member 3 has a shape that can be disposed outside the water supply pipe P, specifically, the inner peripheral surface 3 a has a diameter that is substantially close to the outer diameter of the water supply pipe P. It is cylindrical and the outer peripheral surface 3b is formed in a substantially deformed rectangular tube shape having a substantially hexagonal tube shape.

また、プラグ本体部１には、操作部材３で栓部材２を給水管Ｐの側に移動操作するとき、栓部材２と操作部材３との相対姿勢が異なる複数の操作姿勢（詳しくは、栓部材２と操作部材３との管軸心Ｙ周りでの相対回転角度が異なる複数の操作姿勢）で栓部材２と操作部材３とを係合させる係合手段Ｋが設けられている。 In addition, when the plug member 2 is moved to the side of the water supply pipe P by the operation member 3, the plug body 1 has a plurality of operation postures (specifically, the plug members 2 and the operation member 3 having different relative postures). Engaging means K for engaging the plug member 2 and the operation member 3 in a plurality of operation postures in which the relative rotation angles of the member 2 and the operation member 3 around the tube axis Y are different is provided.

前記栓部材２の上面部の中央位置には、部材内部を開放するための開口部１０が形成されているととともに、この開口部１０の隣接部位には、後述する操作部材３の雌セレーション１３（被係合部の一例）とセレーション嵌合（係合の一例）する雄セレーション１１（係合部の一例）が形成されている。当該雄セレーション１１は、上方側に突出する筒状部の外周面に複数（本例では、３０個）の山部を形成して構成されている。 An opening 10 for opening the inside of the member is formed at the center position of the upper surface of the plug member 2, and a female serration 13 of the operation member 3 to be described later is formed at a portion adjacent to the opening 10. A male serration 11 (an example of an engaging part) is formed which is serrated (an example of engagement) and (an example of an engaged part). The male serration 11 is configured by forming a plurality (30 in this example) of crests on the outer peripheral surface of a cylindrical portion protruding upward.

また、栓部材２の上面部における雄セレーション１１の外側には、当該雄セレーション１１よりも一段下がった環状の被押圧面部１２が形成されている。 In addition, an annular pressed surface portion 12 that is one step lower than the male serration 11 is formed on the outer surface of the male serration 11 on the upper surface portion of the plug member 2.

一方、前記操作部材３の上面部３ｃの中央位置には、栓部材２の雄セレーション１１に対する雌セレーション１３が設けられている。当雌セレーション１３は、操作部材３の上面部３ｃに形成された孔部２１の内周面に複数（本例では、３０個）の谷部を形成して構成されている。 On the other hand, a female serration 13 for the male serration 11 of the plug member 2 is provided at the center position of the upper surface portion 3 c of the operation member 3. The female serration 13 is formed by forming a plurality of (in this example, 30) valleys on the inner peripheral surface of the hole 21 formed in the upper surface 3c of the operation member 3.

前記操作部材３には、係合手段Ｋによる栓部材２との係合状態において栓部材２の被押圧面部１２を押圧して栓部材２を給水管Ｐの側に移動操作させる押圧面部１４（使用回数を判定するための使用回数判定面部の一例）が備えられている。 The operating member 3 has a pressing surface portion 14 (which presses the pressed surface portion 12 of the plug member 2 in the engaged state with the plug member 2 by the engaging means K and moves the plug member 2 toward the water supply pipe P). An example of a usage count determination surface portion for determining the usage count) is provided.

当該押圧面部１４は、操作部材３の上面部３ｃの内面における被係合部１３の外側部位から構成されている。つまり、前記係合手段Ｋは、雄セレーション１１と雌セレーション１３とから構成されている。 The pressing surface portion 14 is configured from an outer portion of the engaged portion 13 on the inner surface of the upper surface portion 3 c of the operation member 3. That is, the engagement means K is composed of a male serration 11 and a female serration 13.

また、前記プラグ本体部１は、図６に示すように、栓部材２と操作部材３とが係合状態（セレーション嵌合状態、つまり、操作姿勢）にあるとき、給水管Ｐの先端部ｐ２を受け入れ可能な円環状の開口部４を備える溝部５が栓部材２と筒部材３との間に形成されるように構成されている。 Further, as shown in FIG. 6, the plug main body 1 has a distal end portion p2 of the water supply pipe P when the plug member 2 and the operation member 3 are in an engaged state (a serration fitting state, that is, an operation posture). A groove portion 5 having an annular opening 4 that can receive the gap is formed between the plug member 2 and the cylindrical member 3.

つまり、前記溝部５の側壁部５ａ、５ｂが、栓部材２の外周面２ｂ及び操作部材３の内周面３ａの各々から構成されるとともに、溝部５の底部が、操作部材３の上面部３ｃにおける押圧面部１４よりも外側に位置する部位から構成される。 That is, the side wall portions 5 a and 5 b of the groove portion 5 are each composed of the outer peripheral surface 2 b of the plug member 2 and the inner peripheral surface 3 a of the operation member 3, and the bottom portion of the groove portion 5 is the upper surface portion 3 c of the operation member 3. It is comprised from the site | part located outside the press surface part 14 in.

なお、前記操作部材３は、栓部材２と操作部材３とが前記操作姿勢にあるとき、操作部材３の下端部が栓部材２の下端面（つまり、栓部材２の下端面ラインＸ）よりも下方に突出する高さ寸法で構成されている。 In the operation member 3, when the plug member 2 and the operation member 3 are in the operation posture, the lower end portion of the operation member 3 is from the lower end surface of the plug member 2 (that is, the lower end surface line X of the plug member 2). Also, it is configured with a height dimension protruding downward.

前記溝部５は、それの溝幅Ｗが底部の側（つまり、上方側）ほど小さくなる形態で構成されている。具体的には、前記栓部材２の外周面２ｂが、上方側ほど管軸心Ｙとは反対側（つまり、外側）に変位する拡径形態（詳しくは、テーパー面形状）で構成されているとともに、前記操作部材３の内周面３ａが、上方側ほど管軸心Ｙ側（つまり、内側）に変位する縮径形態（詳しくは、テーパー面形状）で構成されている。 The groove portion 5 is configured such that the groove width W thereof becomes smaller toward the bottom side (that is, the upper side). Specifically, the outer peripheral surface 2b of the plug member 2 is configured in a diameter-expanded form (specifically, a tapered surface shape) that is displaced to the opposite side (that is, the outside) from the tube axis Y toward the upper side. In addition, the inner peripheral surface 3a of the operation member 3 is configured in a reduced diameter form (specifically, a tapered surface shape) that is displaced toward the tube axis Y side (that is, inside) toward the upper side.

また、前記操作部材３の内周面３ａには、前記栓部材２と操作部材３とが前記操作姿勢にあるとき、流体管Ｐの先端部ｐ２を前記開口部４に差し込んだ状態からの操作部材３の管周方向回転操作によって、流体管Ｐの外周面ｐ１に食い込みながら流体管Ｐの先端部ｐ２と前記溝部５の底部とを相対近接移動させる形態で操作部材３を流体管Ｐの側に移動案内するネジ山状の案内凸部７が形成されている。当該案内凸部７は、雌ネジの如き機能を発揮し得るように、鋸刃型状又は略鋸刃型状の断面形状で操作部材３の内周面３ａの上下両端部に亘って螺旋状に延設されている。 Further, when the plug member 2 and the operation member 3 are in the operation posture, the operation from the state in which the tip portion p2 of the fluid pipe P is inserted into the opening 4 is performed on the inner peripheral surface 3a of the operation member 3. The operation member 3 is moved to the side of the fluid pipe P in such a manner that the tip part p2 of the fluid pipe P and the bottom part of the groove part 5 are moved relatively close to each other while being bitten into the outer peripheral surface p1 of the fluid pipe P by rotating the member 3 in the pipe circumferential direction. A thread-shaped guide convex portion 7 is formed to guide the movement. The guide convex portion 7 has a saw-blade shape or a substantially saw-tooth shape cross-sectional shape so as to exhibit a function like a female screw, and spirals over both upper and lower end portions of the inner peripheral surface 3a of the operation member 3. It is extended to.

すなわち、当該プラグ本体部１は、上述の如く操作部材３を操作することで、給水管Ｐの先端部ｐ２と溝部５の底部とを近接させて溝部５の両側壁面５ａ、５ｂ間の挟圧力で栓部材２と給水管Ｐの先端部ｐ２とを密着させ、これにより、栓部材２で給水管Ｐの先端部ｐ２を閉塞する状態で給水管Ｐに対して装着可能に構成されている。 That is, the plug body 1 operates the operating member 3 as described above to bring the distal end portion p2 of the water supply pipe P and the bottom portion of the groove portion 5 close to each other so that the sandwiching pressure between the side wall surfaces 5a and 5b of the groove portion 5 is increased. Thus, the stopper member 2 and the distal end portion p2 of the water supply pipe P are brought into close contact with each other, and thereby, the stopper member 2 is configured to be attachable to the water supply pipe P in a state where the distal end portion p2 of the water supply pipe P is closed.

前記栓部材２と前記操作部材３との対向面間には、操作部材３で栓部材２を給水管Ｐの側に移動操作するのに伴う押圧力によって使用回数判定用のマークを操作部材３に付するマーキング手段Ｍが設けられている。 Between the opposing surfaces of the plug member 2 and the operation member 3, a mark for use frequency determination is provided by the pressing force associated with the operation member 3 moving the plug member 2 toward the water supply pipe P. The marking means M attached to is provided.

当該マーキング手段Ｍは、前記栓部材２の被押圧面部１２に上向きに尖る形状で突出形成された複数（本例では、２つ）の円錐状の突部１５（使用回数判定用のマークを付するマーキング部の一例）から構成され、前記押圧力によって操作部材３の押圧面部１４に自動的に凹形状の使用痕ｍ（上述した使用回数判定用のマークの一例）が形成されるように構成されている。 The marking means M is provided with a plurality of (in this example, two) conical protrusions 15 (marked for use frequency determination) that are formed to protrude upwardly from the pressed surface portion 12 of the plug member 2. An example of a marking portion to be formed), and configured to automatically form a concave use mark m (an example of the above-described use frequency determination mark) on the pressing surface portion 14 of the operation member 3 by the pressing force. Has been.

すなわち、前記水圧検査プラグ１は、前記係合手段Ｋによる栓部材２と操作部材３との前記操作姿勢（すなわち、セレーション嵌合姿勢）が特に意識しなくとも使用回数毎に高い確率で変化することから、使用前に前述した使用痕ｍを数えることにより使用回数の判定を高い確率で行うことができる。 In other words, the hydraulic pressure test plug 1 changes with high probability every time it is used even if the operation posture (ie, serration fitting posture) between the plug member 2 and the operation member 3 by the engagement means K is not particularly conscious. Therefore, the number of times of use can be determined with a high probability by counting the use marks m described above before use.

前記溝部５には、図６に示すように、給水管Ｐの先端部ｐ２が閉塞される前段階で給水管Ｐの外周面ｐ１と係合する状態で給水管Ｐに対する装着を可能にする係合部８が備えられている。当該係合部８は、操作部材３における栓部材２の下面部２ａから下方に突出する突出部分３ｄと、この突出部分３ｄの内周面に位置する前記案内凸部７とから構成されている。 As shown in FIG. 6, the groove portion 5 can be attached to the water supply pipe P in a state where it engages with the outer peripheral surface p 1 of the water supply pipe P before the front end portion p 2 of the water supply pipe P is closed. A joint 8 is provided. The engaging portion 8 includes a protruding portion 3d that protrudes downward from the lower surface portion 2a of the plug member 2 in the operation member 3, and the guide convex portion 7 that is positioned on the inner peripheral surface of the protruding portion 3d. .

また、前記溝部５には、前記係合部８による給水管Ｐの装着姿勢において外部と連通する連通口９が備えられている。当該連通口９は、給水管Ｐの周方向に分散する状態で連結片部６に開口形成された複数の長穴から構成されている。 In addition, the groove portion 5 is provided with a communication port 9 that communicates with the outside in the mounting posture of the water supply pipe P by the engaging portion 8. The communication port 9 is composed of a plurality of elongated holes formed in the connection piece 6 so as to be dispersed in the circumferential direction of the water supply pipe P.

さらに、前記プラグ本体部１には、給水管Ｐの先端部ｐ２を溝部５の開口部４に案内する案内部が備えられている。当該案内部は、操作部材３の前記突出部分３ｄから構成されている。なお、前記操作部材３の外周面３ｂの下方部には、操作者が把持操作をする場合に使用される複数の把持操作片３ｅが突出形成されている。 Further, the plug main body 1 is provided with a guide portion for guiding the distal end portion p2 of the water supply pipe P to the opening portion 4 of the groove portion 5. The guide portion is constituted by the protruding portion 3 d of the operation member 3. Note that a plurality of gripping operation pieces 3e that are used when the operator performs a gripping operation project from the lower portion of the outer peripheral surface 3b of the operation member 3.

前記抜け飛び阻止部１６は、図２、図３、図６〜図９に示すように、給水管Ｐが挿通可能な環状の挿通バンド部１７（流体管挿通部の一例）と、前記プラグ本体部１に対して挿通バンド部１７を連結させる連結バンド部１８（連結部の一例）とから構成されている。当該挿通バンド部１７と連結バンド部１８は、合成樹脂素材から前記操作部材３と一体的に成形されている。 As shown in FIGS. 2, 3, and 6 to 9, the drop-off prevention portion 16 includes an annular insertion band portion 17 (an example of a fluid tube insertion portion) through which the water supply pipe P can be inserted, and the plug main body. It is comprised from the connection band part 18 (an example of a connection part) which connects the insertion band part 17 with respect to the part 1. FIG. The insertion band portion 17 and the connection band portion 18 are integrally formed with the operation member 3 from a synthetic resin material.

前記連結バンド部１８の一端部１８ａ（図９中の下端部）は、管内圧力でプラグ本体部１が移動するときの引張力で挿通バンド部１７を傾動させるように、挿通バンド部１７の一側半領域Ｒ１における径方向の外側部位（挿通バンド部１７の一側半領域Ｒ１の一例）に接続されている。 One end portion 18a (the lower end portion in FIG. 9) of the connecting band portion 18 is provided in the insertion band portion 17 so that the insertion band portion 17 is tilted by a tensile force when the plug main body portion 1 is moved by the pipe pressure. It is connected to a radially outer portion (one example of one side half region R1 of the insertion band portion 17) in the side half region R1.

具体的には、前記連結バンド部１８の一端部１８ａは、挿通バンド部１７に給水管Ｐを挿通させ、且つ、プラグ本体部１で給水管Ｐの先端部ｐ２を閉塞した状態で挿通バンド部１７を傾斜姿勢に付勢するように、挿通バンド部１７における外側部位の外端面に対して挿通バンド部１７の径方向から接続されている。また、当該連結バンド部１８の一端部１８ａは、連結バンド部１７の他部位に比べて幅広で肉厚に構成されている。 Specifically, the one end portion 18a of the connecting band portion 18 is inserted through the insertion band portion 17 and the insertion band portion in a state where the plug body portion 1 closes the distal end portion p2 of the water supply pipe P. It connects from the radial direction of the insertion band part 17 with respect to the outer end surface of the outer side part in the insertion band part 17 so that 17 may be biased to the inclined posture. Further, the one end portion 18 a of the connection band portion 18 is configured to be wider and thicker than the other portions of the connection band portion 17.

一方、連結バンド部１８の他端部１８ｂ（図９中の上端部）は、前記操作部材３における装着姿勢（図９を参照）で前記一側半領域Ｒ１に対応する領域部位、詳しくは、その領域部位における外周面３ｂの下端部に接続されている。 On the other hand, the other end portion 18b (upper end portion in FIG. 9) of the connecting band portion 18 is a region portion corresponding to the one-side half region R1 in the mounting posture (see FIG. 9) in the operation member 3, It is connected to the lower end of the outer peripheral surface 3b in that region.

前記挿通バンド部１７は、前記連結バンド部１８の一端部１８ａと同じ肉厚で且つ給水管Ｐに外径寸法の変化に対応できるように給水管Ｐの外径よりもやや大きな内径を有する円環状に構成されている。当該挿通バンド部１７には、前記引張力で給水管Ｐの外周面ｐ１に掛止する掛止部１９が設けられている。 The insertion band portion 17 is a circle having the same thickness as the one end portion 18a of the connecting band portion 18 and an inner diameter that is slightly larger than the outer diameter of the water supply pipe P so that the outer diameter of the water supply pipe P can be changed. It is configured in an annular shape. The insertion band portion 17 is provided with a latching portion 19 that latches on the outer peripheral surface p1 of the water supply pipe P with the tensile force.

前記掛止部１９は、前記引張力で流体管Ｐの外周面ｐ１に食い込み可能な複数（本例では一対）の内縁角部１９ａ、内縁角部１９ｂから構成されている。当該内縁一角部１９ａは、それの先端が挿通バンド部１７の一側半領域Ｒ１において管先側（すなわち、挿通バンド部１７の厚み方向の中央位置を通る中心線Ｃよりも管先側、図８中の上方側）に配置されているとともに、内縁他角部１９ｂは、それの先端が挿通バンド部１７の他側半領域Ｒ２において先端が管中間側（すなわち、前記中心線Ｃよりも管中間側、図８中の下方側）に配置されている。 The hooking portion 19 is composed of a plurality (in this example, a pair) of inner edge corner portions 19a and inner edge corner portions 19b that can bite into the outer peripheral surface p1 of the fluid pipe P with the tensile force. The inner edge corner portion 19a has a tip on the tube tip side in one side half region R1 of the insertion band portion 17 (that is, on the tube tip side with respect to the center line C passing through the center position in the thickness direction of the insertion band portion 17; 8, and the inner edge other corner portion 19 b has a distal end in the other half region R 2 of the insertion band portion 17, and a distal end of the inner edge other corner portion 19 b in the other half region R 2. It is arranged on the intermediate side, the lower side in FIG.

次に、上述の如く構成されたプラグ本体部１の使用方法について説明する。
まず、図５に示すように、操作部材３の下方開口部から栓部材２を操作部材３の内部に挿入し、操作部材３の雌セレーション１３と栓部材２の雄セレーション１１とをセレーション嵌合させる。 Next, a method of using the plug main body 1 configured as described above will be described.
First, as shown in FIG. 5, the plug member 2 is inserted into the operation member 3 from the lower opening of the operation member 3, and the female serration 13 of the operation member 3 and the male serration 11 of the plug member 2 are serrated. Let

次に、図６に示すように、給水管Ｐを挿通バンド部１７に挿通させながら給水管Ｐの先端部ｐ２を操作部材３の下方開口部に差し込むように給水管Ｐに対してプラグ本体部１を近接操作したのち、プラグ本体部１を給水管Ｐに対し周方向に回転操作する。この回転操作に伴い、給水管Ｐの先端部ｐ２は溝部５の開口部４の側へ移動していく。そして、図７に示すように、給水管Ｐの先端部ｐ２が溝部５の開口部４に至る前に回転操作を一旦止める。 Next, as shown in FIG. 6, the plug main body portion with respect to the water supply pipe P is inserted into the lower opening of the operation member 3 while inserting the water supply pipe P through the insertion band portion 17. After the proximity operation of 1, the plug body 1 is rotated with respect to the water supply pipe P in the circumferential direction. With this rotation operation, the front end portion p 2 of the water supply pipe P moves toward the opening 4 side of the groove portion 5. And as shown in FIG. 7, before the front-end | tip part p2 of the water supply pipe P reaches the opening part 4 of the groove part 5, rotation operation is once stopped.

この時、プラグ本体部１は、前記係合部８に給水管Ｐの先端部ｐ２を係合させた状態で給水管Ｐに装着保持されている。なお、給水管Ｐの基端部は、水栓を介して給水源等に接続しておく。 At this time, the plug main body 1 is mounted and held on the water supply pipe P in a state where the distal end portion p2 of the water supply pipe P is engaged with the engaging portion 8. In addition, the base end part of the water supply pipe P is connected to a water supply source etc. through the water tap.

ちなみに、前記回転操作は、操作部材３の外周面３ｂに操作具（例えば、レンチ等）を係合させた状態で回転させたり、操作部材３の外周面３ｂに形成した把持操作片３ｅを把持した状態で回転させたりして行うことができる。 Incidentally, in the rotation operation, the operation member 3 is rotated with the operation tool (for example, a wrench) engaged with the outer peripheral surface 3b of the operation member 3, or the grip operation piece 3e formed on the outer peripheral surface 3b of the operation member 3 is gripped. It can be carried out by rotating in the state.

次に、図７に示すように、給水管Ｐへの給水を開始し、溝部５の開口部４、溝部５の内部、溝部５の連通口９を通じて当該水とともに給水管Ｐの内部気体（気泡、場合によってはゴミ等も）を外部に放出する。 Next, as shown in FIG. 7, water supply to the water supply pipe P is started, and the internal gas (bubbles) of the water supply pipe P together with the water through the opening 4 of the groove 5, the inside of the groove 5, and the communication port 9 of the groove 5. In some cases, trash etc.) are discharged to the outside.

前記給水管Ｐの内部気体を外部に放出したのち、給水管Ｐへの給水を行いつつプラグ本体部１を再び回転操作して給水管Ｐの先端部ｐ２と溝部５の底部とを相対近接移動させていく。そして、図８に示すように、溝部５の両側壁部５ａ、５ｂの挟圧力で連通口９からの水の流出が止まったこと（すなわち、流体管Ｐの先端部ｐ２が栓部材２で閉塞されたこと）を確認し、プラグ本体部１の回転操作を終了する。これにより、水圧検査プラグＴは、給水管Ｐの先端部ｐ２を閉塞する状態で給水管Ｐの先端部ｐ２に装着される。 After releasing the internal gas of the water supply pipe P to the outside, the plug main body 1 is rotated again while water is supplied to the water supply pipe P, and the tip part p2 of the water supply pipe P and the bottom part of the groove part 5 are moved relatively close to each other. I will let you. Then, as shown in FIG. 8, the outflow of water from the communication port 9 is stopped by the sandwiching pressure between the side wall portions 5a and 5b of the groove portion 5 (that is, the distal end portion p2 of the fluid pipe P is blocked by the plug member 2). The rotation operation of the plug main body 1 is finished. Thereby, the water pressure test plug T is attached to the distal end portion p2 of the water supply pipe P in a state where the distal end portion p2 of the water supply pipe P is closed.

図９（ａ）に示すように、水圧検査プラグＴの給水管Ｐへの装着状態において、管内圧力でプラグ本体部１が給水管Ｐの先端部ｐ２から離脱する方向（図中の上方向）に移動し始めると、連結バンド部１８を介してプラグ本体部１に連結された挿通バンド部１７の一側半領域Ｒ１側が上方側に引っ張られる。 As shown in FIG. 9A, in a state where the water pressure test plug T is attached to the water supply pipe P, the plug main body 1 is detached from the tip end portion p2 of the water supply pipe P by the pipe pressure (upward direction in the figure). When the movement starts, the one side half region R1 side of the insertion band portion 17 connected to the plug main body portion 1 through the connection band portion 18 is pulled upward.

この引張力によって、図９（ｂ）に示すように、挿通バンド部１７の一側半領域Ｒ１では内縁一角部１９ａが給水管Ｐの外周面ｐ１に食い込むとともに、挿通バンド部１７の他側半領域Ｒ２では内縁他角部１９ｂが給水管Ｐの外周面ｐ１に食い込む。そして、これら内縁角部１９ａ、１９ｂの食い込み掛止によって連結バンド部１７を介してプラグ本体部１の離脱移動が停止する。そのため、水圧テストプラグＴが給水管Ｐから抜け飛ぶことを効率的に阻止される。 With this tensile force, as shown in FIG. 9B, the inner edge corner 19a bites into the outer peripheral surface p1 of the water supply pipe P in one side half region R1 of the insertion band portion 17, and the other side half of the insertion band portion 17 In the region R2, the inner edge other corner portion 19b bites into the outer peripheral surface p1 of the water supply pipe P. Then, the detachment movement of the plug main body portion 1 is stopped via the connecting band portion 17 by the biting engagement of the inner edge corner portions 19a and 19b. Therefore, the water pressure test plug T is effectively prevented from flying off the water supply pipe P.

なお、前記回転操作に伴う押圧力によって、操作部材３の押圧面部１４には、栓部材２の突部１５の先端部がめり込んだ状態になる。そのため、水圧検査プラグ１を取り外し、再度、別の給水管Ｐに使用する場合には、図１０（ａ）に示すように、操作部材３の押圧面部１４に突部１５による使用痕ｍが残ることになる。 Note that, due to the pressing force associated with the rotation operation, the distal end portion of the protrusion 15 of the plug member 2 is indented into the pressing surface portion 14 of the operation member 3. Therefore, when the water pressure test plug 1 is removed and used again for another water supply pipe P, as shown in FIG. 10A, the use mark m due to the protrusion 15 remains on the pressing surface portion 14 of the operation member 3. It will be.

また、さらに、もう一度、別の給水管Ｐに使用した場合には、前記操作姿勢（セレーション嵌合姿勢）が特に意識しなくとも高い確率で前回とは異なることから、図１０（ｂ）に示すように、操作部材３の押圧面部１４に突部１５による別の使用痕ｍが高い確率で残ることになる。そのため、当該水圧検査プラグ１は、使用する前に操作部材３の押圧面部１４の状態を確認することによって、既に使用した回数を高い確率で判定することができる。 Further, when used again for another water supply pipe P, the operation posture (serration fitting posture) is different from the previous one with a high probability without being particularly conscious, so that it is shown in FIG. Thus, another usage mark m due to the protrusion 15 remains on the pressing surface portion 14 of the operation member 3 with a high probability. Therefore, the water pressure test plug 1 can determine the number of times it has already been used with high probability by checking the state of the pressing surface portion 14 of the operation member 3 before use.

〔その他の実施形態〕
（１）前述の実施形態では、プラグ本体部１と抜け止め阻止部１６（すなわち、連結バンド部１８と挿通バンド部１７）とが同一部材から構成されている場合を例に示したが、同一部材から構成されていなくてもよい。 [Other Embodiments]
(1) In the above-described embodiment, the case where the plug main body 1 and the retaining member 16 (that is, the connecting band 18 and the insertion band 17) are configured by the same member has been described as an example. It does not need to be comprised from the member.

例えば、プラグ本体部１を構成する第１部材と、連結バンド部１８と挿通バンド部１７とを構成する第２部材とが脱着自在に構成されていてもよい。この場合、例えば、第２部材における連結バンド部１８の他端部１８ｂと第１部材とを紐等の結束手段によって接続自在（つまり、脱着自在）に構成したり、連結バンド部１８の他端部１８ｂと第１部材とを接続手段によって接続自在（つまり、脱着自在）に構成したりすればよい。 For example, the 1st member which comprises the plug main-body part 1, and the 2nd member which comprises the connection band part 18 and the insertion band part 17 may be comprised so that attachment or detachment is possible. In this case, for example, the other end portion 18b of the connecting band portion 18 in the second member and the first member can be configured to be freely connectable (that is, detachable) by a binding means such as a string, or the other end of the connecting band portion 18 What is necessary is just to comprise the part 18b and the 1st member so that connection is possible (that is, detachable) by a connection means.

また、例えば、プラグ本体部１と連結バンド部１８を構成する第１部材と、挿通バンド部１７とを構成する第２部材とが脱着自在に構成されていてもよい。この場合、例えば、第１部材における連結バンド部１７の一端部１８ａと第２部材とを紐等の結束手段によって接続自在（つまり、脱着自在）に構成したり、連結バンド部１８の一端部１８ａと第２部材とを接続手段によって接続自在（つまり、脱着自在）に構成したりすればよい。 Further, for example, the first member constituting the plug main body portion 1 and the connecting band portion 18 and the second member constituting the insertion band portion 17 may be detachable. In this case, for example, the one end portion 18a of the connecting band portion 17 in the first member and the second member are configured to be connectable (that is, detachable) by a binding means such as a string, or the one end portion 18a of the connecting band portion 18 is configured. And the second member may be configured to be connectable (that is, detachable) by the connecting means.

前記接続手段を構成するには、例えば、筒状のインシュロック受け部と、これに挿通される状態で噛合接続自在なインシュロックバンド部からなるインシュロック機構、或いは、係止凸部と被被係止凹部からなる係止手段などを第1部材と第２部材との間に設けたりすればよい。 In order to configure the connecting means, for example, an insulating lock mechanism comprising a cylindrical insulating lock receiving portion and an insulating lock band portion that can be meshed and connected while being inserted into the cylindrical insulating lock receiving portion, or a locking convex portion and a locked concave portion A locking means or the like made of may be provided between the first member and the second member.

（２）前述の実施形態では、挿通バンド部１７が全体に亘って同じ厚み寸法で構成されている場合を例に示したが、例えば、図１１に示すように、内周縁部１７ａが外周縁部１７ｂよりも大なる厚み寸法で構成されていたりしてもよい。 (2) In the above-described embodiment, the case where the insertion band portion 17 is configured with the same thickness dimension throughout is shown as an example. For example, as shown in FIG. You may be comprised with the thickness dimension larger than the part 17b.

（３）前述の実施形態の改良として、図１２に示すように、操作部材３ａの下端（流体管側端の一例）に、給水管Ｐの先端部ｐ２の閉塞状態において給水管Ｐの先端部ｐ２の外周面ｐ１における前記他半側領域Ｒ２に相当する領域に当接する状態で下方に延出する延出部２０が設けられていてもよい。 (3) As an improvement of the above-described embodiment, as shown in FIG. 12, the distal end portion of the water supply pipe P at the lower end (an example of the fluid pipe side end) of the operation member 3a in the closed state of the distal end portion p2 of the water supply pipe P. An extending portion 20 that extends downward may be provided in contact with a region corresponding to the other half region R2 on the outer peripheral surface p1 of p2.

このようにすれば、管内圧力でプラグ本体部１が給水管Ｐの先端部ｐ２から実質的に離脱するまで移動した後（すなわち、プラグ本体部１の係合部８が先端部ｐ２から離脱した後）でも、プラグ本体部１が連結バンド部１８の側に飛行するのを延出部２０と給水管Ｐとの接当により規制する形態でプラグ本体部１を上方側に飛行案内することができて、連結バンド部１８による挿通バンド部の傾動操作を確実に行わせることができる。 If it does in this way, after the plug main-body part 1 will move by the pressure in a pipe | tube until it substantially remove | deviates from the front-end | tip part p2 of the water supply pipe P (namely, the engaging part 8 of the plug main-body part 1 will detach | leave from the front-end | tip part p2. Even after), the plug body 1 can be guided to fly upward in such a manner that the plug body 1 is restricted from flying toward the connecting band 18 by the contact between the extension 20 and the water supply pipe P. Thus, the tilting operation of the insertion band portion by the connecting band portion 18 can be reliably performed.

（４）プラグ本体部１の形状等の具体的構成は、前述の実施形態で示した如き構成に限らず、種々の構成変更が可能であり、例えば、前述の各実施形態では、プラグ本体部１が２つの部材から構成されている場合を例に示したが、１つ又は３つ以上の部材から構成されていてもよく、また、前述の実施形態で示した給水管Ｐの内部を閉塞する構成に限らず、給水管Ｐの端面を閉塞する構成などであってもよい。 (4) The specific configuration such as the shape of the plug main body 1 is not limited to the configuration shown in the above-described embodiment, and various configurations can be changed. For example, in each of the above-described embodiments, the plug main body 1 Although the case where 1 is comprised from two members was shown as an example, it may be comprised from 1 or 3 or more members, and the inside of the water supply pipe P shown by the above-mentioned embodiment is obstruct | occluded. Not only the structure to perform, but the structure etc. which block | close the end surface of the water supply pipe P may be sufficient.

（５）挿通部や連結部の形状等の具体的構成も、前述の実施形態で示したバンド状のものに限らず、種々の構成変更が可能である。 (5) The specific configuration such as the shape of the insertion portion and the connecting portion is not limited to the band shape shown in the above-described embodiment, and various configuration changes can be made.

（６）前述の実施形態では、掛止部１９が挿通バンド部１７の内縁一角部１９ａと内縁他角部１９ｂから構成されている場合を例に示したが、例えば、挿通バンド部１７に流体管側に突出形成した尖状の突部などから構成されていてもよい。 (6) In the above-described embodiment, the case where the latching portion 19 is configured by the inner edge corner portion 19a and the inner edge other corner portion 19b of the insertion band portion 17 has been described as an example. You may comprise from the pointed protrusion etc. which protruded and formed in the pipe side.

（７）前述の実施形態では、プラグ本体部１が樹脂製である場合を例に示したが、金属製やガラス製などであってもよい。 (7) In the above-described embodiment, the case where the plug main body 1 is made of resin is shown as an example, but it may be made of metal or glass.

（８）前述の実施形態では、挿通バンド部１７が樹脂製である場合を例に示したが、紐やゴム、或いは、布等の可撓性を備える素材であれば、種々の素材から構成されていてもよい。 (8) In the above-described embodiment, the case where the insertion band portion 17 is made of resin is shown as an example. However, as long as it is a flexible material such as a string, rubber, or cloth, it is composed of various materials. May be.

（９）流体管は、前述の実施形態で示した給水管Ｐに限らず、排水管、給湯管、ガス管或いは、薬液や排液を輸送する管などの各種の管であってもよい。 (9) The fluid pipe is not limited to the water supply pipe P shown in the above-described embodiment, but may be various kinds of pipes such as a drain pipe, a hot water supply pipe, a gas pipe, or a pipe for transporting a chemical solution or drainage liquid.

（１０）前述の実施形態では、流体管閉塞具として、水圧の検査に使用される水圧検査プラグを例に示したが、流体管の先端部を閉塞するものであれば、如何なる目的で使用されるものであってもよい。 (10) In the above-described embodiment, the hydraulic pressure test plug used for the hydraulic pressure test is shown as an example of the fluid pipe closing tool. However, it can be used for any purpose as long as it closes the tip of the fluid pipe. It may be a thing.

流体管閉塞具の使用状態を示す一部破断側面図Partially broken side view showing the usage state of the fluid pipe obturator 操作部材の上面図Top view of operation member 操作部材の側面図Side view of operation member 栓部材の上面図Top view of plug member 流体管閉塞具の使用方法を示す説明断面図Explanatory sectional view showing how to use fluid pipe obturator 流体管閉塞具の使用方法を示す説明断面図Explanatory sectional view showing how to use fluid pipe obturator 流体管閉塞具の使用方法を示す説明断面図Explanatory sectional view showing how to use fluid pipe obturator 流体管閉塞具の使用方法を示す説明断面図Explanatory sectional view showing how to use fluid pipe obturator 流体管閉塞具の抜け止め機能を示す一部破断側面図Partially broken side view showing the retaining function of the fluid tube obturator 使用回数判定用のマークを示す操作部材の下面図Bottom view of operation member showing mark for use count determination その他の実施形態における流体管閉塞具の使用状態を示す一部破断側面図The partially broken side view which shows the use condition of the fluid pipe | tube obturator in other embodiment その他の実施形態における流体管閉塞具の使用状態を示す一部破断側面図The partially broken side view which shows the use condition of the fluid pipe | tube obturator in other embodiment

Explanation of symbols

Ｐ流体管
ｐ２先端部
Ｔ流体管閉塞具（水圧検査プラグ）
１流体管閉塞部（プラグ本体部）
１７流体管挿通部（挿通バンド部）
１８連結部（連結バンド部）
Ｒ１一側半領域
Ｒ２他側半領域
１９掛止部
１９ａ食い込み部（内縁一角部）
１９ｂ食い込み部（内縁他角部）
２０延出部 P Fluid pipe p2 Tip T Fluid pipe obturator (hydraulic test plug)
1 Fluid pipe blockage (plug body)
17 Fluid pipe insertion part (insertion band part)
18 Connection part (connection band part)
R1 One side half region R2 The other side half region 19 Engagement part 19a Biting part (inner edge corner part)
19b biting part (inner edge other corner part)
20 Extension part

Claims

A fluid pipe closing part that closes the tip of the fluid pipe, a fluid pipe insertion part through which the fluid pipe is inserted, and a connecting part that connects the fluid pipe closing part and the fluid pipe insertion part,
The connecting part is connected to one side half region of the fluid pipe insertion part so as to tilt the fluid pipe insertion part with a tensile force when the fluid pipe closing part moves due to the pressure in the pipe,
Inclination in which the fluid pipe is inserted into the fluid pipe insertion portion, and the fluid pipe insertion portion is positioned on one side half region side on the pipe tip side in the state where the fluid pipe closing portion closes the tip of the fluid pipe. Being urged by posture,
The fluid pipe insertion part is provided with a latching part that latches on the outer peripheral surface of the fluid pipe by the tensile force,
The fluid pipe closing portion closes the distal end portion of the fluid pipe in a close contact state, and presses the stopper member against the distal end portion of the fluid pipe to bring the stopper member into contact with the distal end portion of the fluid pipe. It consists of an operation member,
The operation member, the fluid pipe insertion portion and the connection portion are integrally formed of resin,
The other end portion of the connecting portion is a fluid pipe obturator that is integrally connected to the open end portion of the outer peripheral surface of the operation member .

A fluid pipe closing part that closes the tip of the fluid pipe, a fluid pipe insertion part through which the fluid pipe is inserted, and a connecting part that connects the fluid pipe closing part and the fluid pipe insertion part,
The connecting part is connected to one side half region of the fluid pipe insertion part so as to tilt the fluid pipe insertion part with a tensile force when the fluid pipe closing part moves due to the pressure in the pipe,
Inclination in which the fluid pipe is inserted into the fluid pipe insertion portion, and the fluid pipe insertion portion is positioned on one side half region side on the pipe tip side in the state where the fluid pipe closing portion closes the tip of the fluid pipe. Being urged by posture,
The fluid pipe insertion part is provided with a latching part that latches on the outer peripheral surface of the fluid pipe by the tensile force ,
The connecting portion and the fluid pipe insertion portion are integrally formed of resin,
The fluid pipe closing portion closes the distal end portion of the fluid pipe in a close contact state, and presses the stopper member against the distal end portion of the fluid pipe to bring the stopper member into contact with the distal end portion of the fluid pipe. It consists of an operation member,
The other end portion of the connecting portion is a fluid pipe obturator that is integrally connected to the open end portion of the outer peripheral surface of the operation member .

A fluid pipe closing part that closes the tip of the fluid pipe, a fluid pipe insertion part through which the fluid pipe is inserted, and a connecting part that connects the fluid pipe closing part and the fluid pipe insertion part,
The connecting part is connected to one side half region of the fluid pipe insertion part so as to tilt the fluid pipe insertion part with a tensile force when the fluid pipe closing part moves due to the pressure in the pipe,
Inclination in which the fluid pipe is inserted into the fluid pipe insertion portion, and the fluid pipe insertion portion is positioned on one side half region side on the pipe tip side in the state where the fluid pipe closing portion closes the tip of the fluid pipe. Being urged by posture,
The fluid pipe insertion part is provided with a latching part that latches on the outer peripheral surface of the fluid pipe by the tensile force ,
The fluid pipe closing portion closes the distal end portion of the fluid pipe in a close contact state, and presses the stopper member against the distal end portion of the fluid pipe to bring the stopper member into contact with the distal end portion of the fluid pipe. It consists of an operation member,
The operation member and the connecting portion are integrally formed of resin,
The other end portion of the connecting portion is a fluid pipe obturator that is integrally connected to the open end portion of the outer peripheral surface of the operation member .

A fluid pipe closing part that closes the tip of the fluid pipe, a fluid pipe insertion part through which the fluid pipe is inserted, and a connecting part that connects the fluid pipe closing part and the fluid pipe insertion part,
The connecting part is connected to one side half region of the fluid pipe insertion part so as to tilt the fluid pipe insertion part with a tensile force when the fluid pipe closing part moves due to the pressure in the pipe,
Inclination in which the fluid pipe is inserted into the fluid pipe insertion portion, and the fluid pipe insertion portion is positioned on one side half region side on the pipe tip side in the state where the fluid pipe closing portion closes the tip of the fluid pipe. Being urged by posture,
The fluid pipe insertion part is provided with a latching part that latches on the outer peripheral surface of the fluid pipe by the tensile force ,
The fluid pipe closing portion closes the distal end portion of the fluid pipe in a close contact state, and presses the stopper member against the distal end portion of the fluid pipe to bring the stopper member into contact with the distal end portion of the fluid pipe. It consists of an operation member,
The other end portion of the connecting portion is a fluid pipe obturator that is integrally connected to the open end portion of the outer peripheral surface of the operation member .