JP6327897B2 - Flange separation prevention device - Google Patents

Flange separation prevention device Download PDF

Info

Publication number
JP6327897B2
JP6327897B2 JP2014056014A JP2014056014A JP6327897B2 JP 6327897 B2 JP6327897 B2 JP 6327897B2 JP 2014056014 A JP2014056014 A JP 2014056014A JP 2014056014 A JP2014056014 A JP 2014056014A JP 6327897 B2 JP6327897 B2 JP 6327897B2
Authority
JP
Japan
Prior art keywords
pressing
flange
clamping
flanges
pressed
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.)
Active
Application number
JP2014056014A
Other languages
Japanese (ja)
Other versions
JP2015178850A (en
Inventor
悟 武田
悟 武田
芳則 前田
芳則 前田
Original Assignee
コスモ工機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by コスモ工機株式会社 filed Critical コスモ工機株式会社
Priority to JP2014056014A priority Critical patent/JP6327897B2/en
Publication of JP2015178850A publication Critical patent/JP2015178850A/en
Application granted granted Critical
Publication of JP6327897B2 publication Critical patent/JP6327897B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Description

本発明は、対向した一対のフランジの離間を防止するフランジ離間防止装置に関する。   The present invention relates to a flange separation preventing device for preventing separation between a pair of opposed flanges.
従来、補強治具(基底部)の両端に立設される脚部(壁部)を有するフランジ接合体(挟持部材)と、前記フランジ接合体(挟持部材)に進退可能に設けられるボルト(押圧部材)と、を備え、前記フランジの外周面が前記補強治具(基底部)の内底面に対向するように前記脚部(壁部)の間に配置して、フランジの離間を防止するフランジ離間防止装置が知られている(例えば、特許文献1参照)。また、一対のアーム(基底部)の端部に立設された屈曲部に設けられた当接プレート(壁部)の間でフランジを挟持し前記フランジの離間を防止しているものもある(例えば、特許文献2参照)。 Conventionally, a flange joined body (clamping member) having legs (walls) standing on both ends of a reinforcing jig (base part), and a bolt (pressing) provided on the flange joined body (clamping member) so as to be able to advance and retract And a flange that is disposed between the leg portions (wall portions) so that the outer peripheral surface of the flange faces the inner bottom surface of the reinforcing jig (base portion), and prevents the flange from separating. A separation prevention device is known (see, for example, Patent Document 1). In addition, there is also a type in which a flange is sandwiched between contact plates (wall portions) provided at bent portions standing at the ends of a pair of arms (base portions) to prevent the flanges from being separated ( For example, see Patent Document 2).
特開2005−147243号公報(第4頁、図1−図3)Japanese Patent Laying-Open No. 2005-147243 (Page 4, FIGS. 1 to 3) 特開平11−225001号公報(第4頁、図4−図5)JP-A-11-22501 (4th page, FIG. 4 to FIG. 5)
しかしながら、特許文献1のフランジ離間防止装置を、例えばT字管や弁等の管接続部材のフランジに適用した場合、フランジ接合体に取付けられるボルトは、T字管の隣接する他のフランジとの距離が近くなり、ボルトを締めるための工具あるいはボルト自体が他のフランジと干渉して、適切なボルトの締付け作業が困難となり、フランジ離間防止装置の取付け作業に多大な時間を要し、工事期間が長くなるという問題がある However, when the flange separation preventing device of Patent Document 1 is applied to, for example, a flange of a pipe connection member such as a T-shaped tube or a valve, a bolt attached to the flange joined body is connected to another flange adjacent to the T-shaped tube. The distance between the bolts and the bolt tightening tool or the bolt itself interferes with other flanges, making it difficult to tighten the bolts properly. There is a problem that becomes longer .
本発明は、このような問題点に着目してなされたもので、管形状に関わらず、適切なボルトの締付け作業を短時間で完了でき、確実にフランジの離間を防止できるフランジ離間防止装置を提供することを目的とする。   The present invention has been made paying attention to such problems, and a flange separation preventing device that can complete an appropriate bolt tightening operation in a short time regardless of the pipe shape and can surely prevent flange separation. The purpose is to provide.
前記課題を解決するために、本発明のフランジ離間防止装置は、
基底部の両側に立設される壁部を有し、管網を構成する配管部材の一対のフランジを挟持する挟持部材を備え、前記基底部の内底面が前記一対のフランジの外周面に対向するように配置され、前記一対のフランジが離間することを防止するフランジ離間防止装置であって、
前記挟持部材に進退可能に設けられる押圧部材により押圧され、該押圧部材の進退方向に対し傾斜する被押圧面と、前記押圧部材の進退方向と異なる方向に一方のフランジの管軸方向の端面を面で押圧するフランジ押圧面と、を有する押圧方向変換部材を備えることを特徴としている。
この特徴によれば、押圧部材により押圧される被押圧面と、押圧部材の進退方向と異なる方向に一方のフランジを押圧するフランジ押圧面と、を有するので、押圧部材の進退方向と異なる方向にフランジを押圧できるので、押圧部材の締付け作業を容易に行うことができ、確実にフランジの離間防止を行うことができる。
In order to solve the above-mentioned problem, the flange separation preventing device of the present invention includes:
The walls erected on both sides of the base portion possess, comprising a clamping member for clamping the pair of flanges of the pipe member constituting the tube network, facing the inner bottom surface of the base portion on the outer peripheral surface of the pair of flanges A flange separation preventing device arranged to prevent the pair of flanges from separating,
A pressed surface that is pressed by a pressing member provided to the clamping member so as to be able to advance and retract, and is inclined with respect to the advancing / retreating direction of the pressing member, and an end surface in the tube axis direction of one flange in a direction different from the advancing / retreating direction of the pressing member. is characterized in that it comprises a flange pressing surface for pressing a plane, a pressing direction converting member having a.
According to this feature, since it has a pressed surface pressed by the pressing member and a flange pressing surface that presses one flange in a direction different from the advancing / retreating direction of the pressing member, it is in a direction different from the advancing / retreating direction of the pressing member. Since the flange can be pressed, the pressing member can be easily tightened and the flange can be reliably prevented from being separated.
本発明のフランジ離間防止装置は、
前記押圧方向変換部材は、前記一対のフランジを挟持するための挟持片を備え、該挟持片は、前記被押圧面と、前記挟持部材の壁部傾斜面に当接する傾斜面と、を備えることを特徴としている。
この特徴によれば、挟持部材との間に一対のフランジを挟持する挟持片が、押圧部材の進退方向に対し傾斜する被押圧面及び挟持部材の壁部傾斜面に当接する傾斜面の2つの傾斜面によって、押圧力の方向を変換して、押圧部材の押圧力をフランジ押圧面に伝えることができるので、押圧部材の締付け作業を容易に行うことができ、確実にフランジの離間防止を行うことができる。
The flange separation preventing device of the present invention is
The pressing direction converting member is provided with clamping pieces for clamping said pair of flanges,該挟Jihen, it comprises said pressed surface, and a slanted surface abutting the wall portion inclined surface of the clamping member It is characterized by.
According to this feature, the sandwiching piece that sandwiches the pair of flanges between the sandwiching member includes the pressed surface that is tilted with respect to the advancing and retreating direction of the pressing member, and the inclined surface that is in contact with the inclined wall surface of the sandwiching member. The direction of the pressing force can be changed by the inclined surface, and the pressing force of the pressing member can be transmitted to the flange pressing surface, so that the pressing member can be easily tightened and the flange is reliably prevented from being separated. be able to.
本発明の本発明のフランジ離間防止装置は、
前記押圧部材は前記基底部に略垂直に配設され、前記押圧部材と前記挟持片との間に介設部材を有し、該介設部材は、前記押圧部材により押圧される被押圧面と、前記挟持片の被押圧面を押圧する傾斜面と、を備えることを特徴としている。
この特徴によれば、フランジの管軸方向の離間力と直交するように、押圧部材は基底部に略垂直に配設されるので、フランジの管軸方向の離間力の押圧部材への影響は小さくなるとともに、介設部材は、挟持片の被押圧面を押圧する傾斜面を有するので、楔効果によって、確実に一対のフランジを押圧することができ、フランジの離間を防止することができる。
The flange separation preventing device of the present invention of the present invention is
The pressing member is disposed substantially perpendicular to the base portion, and has an interposed member between the pressing member and the clamping piece, and the interposed member includes a pressed surface pressed by the pressing member, And an inclined surface that presses the pressed surface of the clamping piece.
According to this feature, since the pressing member is disposed substantially perpendicular to the base portion so as to be orthogonal to the separation force of the flange in the tube axis direction, the influence of the separation force in the tube axis direction of the flange on the pressing member is not affected. Since the interposed member has an inclined surface that presses the pressed surface of the clamping piece, the pair of flanges can be reliably pressed by the wedge effect, and separation of the flanges can be prevented.
本発明の本発明のフランジ離間防止装置は、
円弧状の複数の分割片を締結部材で連結して形成される位置出し部材に、所定の間隔を設けて複数の前記フランジ離間防止装置を配置、固定したことを特徴としている。
この特徴によれば、円弧状の複数の分割片を締結部材で連結して形成される位置出し部材に、フランジ離間防止装置を所定の間隔を設けて配置、固定されているので、複数のフランジ離間防止装置をフランジに容易に、適切な位置や方向で取付けることができる。
The flange separation preventing device of the present invention of the present invention is
A plurality of the flange separation preventing devices are arranged and fixed at predetermined intervals on a positioning member formed by connecting a plurality of arc-shaped divided pieces with fastening members.
According to this feature, the flange separation preventing device is arranged and fixed at a predetermined interval on a positioning member formed by connecting a plurality of arc-shaped divided pieces with a fastening member. The separation preventing device can be easily attached to the flange at an appropriate position and direction.
(a)は、実施例1に係るフランジ離間防止装置の正面図、(b)は一部側断面図である。(A) is a front view of the flange separation prevention apparatus which concerns on Example 1, (b) is a partial sectional side view. は、図1のJ−J矢視図である。These are the JJ arrow line views of FIG. は、図1の点線囲い部Kのフランジ離間防止装置の詳細図である。[Fig. 2] is a detailed view of a flange separation preventing device of a dotted line enclosing portion K in Fig. 1. の点線囲い部Mは、実施例1に係るフランジ離間防止装置の取付け状況を示す図であり、点線囲い部Nは、従来のフランジ離間防止装置の取付け状況を示す図である。The dotted line enclosure part M is a figure which shows the attachment condition of the flange separation prevention apparatus which concerns on Example 1, and the dotted line enclosure part N is a figure which shows the attachment condition of the conventional flange separation prevention apparatus. (a)は、実施例1に係るフランジ離間防止装置の変形例を示す図、(b)は、他の変形例を示す図である。(A) is a figure which shows the modification of the flange separation | spacing prevention apparatus which concerns on Example 1, (b) is a figure which shows another modification. (a)は、実施例2に係るフランジ離間防止装置を示す図、(b)は、実施例2に係るフランジ離間防止装置の変形例を示す図である。(A) is a figure which shows the flange separation prevention apparatus which concerns on Example 2, (b) is a figure which shows the modification of the flange separation prevention apparatus which concerns on Example 2. FIG. (a)は、実施例3に係るフランジ離間防止装置の一部側断面図、(b)は、(a)のX方向矢視図である。(A) is a partial sectional side view of the flange separation | spacing prevention apparatus which concerns on Example 3, (b) is a X direction arrow directional view of (a). は、実施例3に係るフランジ離間防止装置の変形例を示す図である。These are figures which show the modification of the flange separation prevention apparatus which concerns on Example 3. FIG.
本発明に係るフランジ離間防止装置を実施するための形態を実施例に基づいて以下に説明する。   EMBODIMENT OF THE INVENTION The form for implementing the flange separation prevention apparatus which concerns on this invention is demonstrated below based on an Example.
実施例1に係るフランジ離間防止装置につき、図1から図8を参照して説明する。   The flange separation preventing device according to the first embodiment will be described with reference to FIGS.
以下に述べる流体管1、割T字管3、流体弁4は、管網を構成する配管の一部であって、地中に埋設される上水道用のダクタイル鋳鉄製であり、管の内周面がモルタル層で被覆されている。尚、本発明に係る流体管は、その他鋳鉄、鋼等の金属製、あるいは石綿、コンクリート製、塩化ビニール、ポリエチレン若しくはポリオレフィン製等であってもよい。更に、流体管の内周面はモルタル層に限らず、例えばエポキシ樹脂等により被覆されてもよく、若しくは適宜の材料を粉体塗装により流体管の内周面に被覆してもよい。また、本実施例では流体管内の流体は、本実施例の上水に限らず、例えば工業用水や農業用水、下水等の他、ガスやガスと液体との気液混合体であっても構わない。   The fluid pipe 1, the split T-shaped pipe 3, and the fluid valve 4 described below are part of piping constituting the pipe network, and are made of ductile cast iron for waterworks buried in the ground. The surface is covered with a mortar layer. The fluid pipe according to the present invention may be made of other metals such as cast iron and steel, or made of asbestos, concrete, vinyl chloride, polyethylene, or polyolefin. Furthermore, the inner peripheral surface of the fluid pipe is not limited to the mortar layer, and may be coated with, for example, an epoxy resin or the like, or an appropriate material may be coated on the inner peripheral surface of the fluid pipe with powder coating. In the present embodiment, the fluid in the fluid pipe is not limited to the clean water of the present embodiment, but may be, for example, industrial water, agricultural water, sewage, etc., or a gas-liquid mixture of gas and gas and liquid. Absent.
図1(a)、(b)に示されるように、流体管1の分岐部において水密に取付けられた分岐部材2は、流体管1から略直交に分岐された流体管路を構成している。分岐部材2は、流体管1の外周面に取付けられる割T字管3と、割T字管3に取付けられた流体弁4と、から成る。   As shown in FIGS. 1A and 1B, the branching member 2 attached in a watertight manner at the branching portion of the fluid pipe 1 constitutes a fluid pipe branched from the fluid pipe 1 substantially orthogonally. . The branching member 2 includes a split T-shaped tube 3 attached to the outer peripheral surface of the fluid pipe 1 and a fluid valve 4 attached to the split T-shaped tube 3.
割T字管3は、流体管1を周方向に亘って被覆する2分割構造の部材であって、流体管1の外周面を略半周に亘って水密に被覆する被覆板3aと、この被覆板3aにボルト・ナット5で接続され流体管1の残り略半周に亘って水密に被覆するとともに、流体管1からの分岐方向に開口する受口部3cを有する本体3bと、から構成されている。また割T字管3における流体管1軸方向両側には、割T字管3の内面と流体管1の外面とをシールする二分割構造の離脱防止押輪6、6が装着されている。   The split T-shaped tube 3 is a member having a two-divided structure that covers the fluid pipe 1 in the circumferential direction, and a covering plate 3a that covers the outer peripheral surface of the fluid pipe 1 in a water-tight manner over a substantially half circumference, and this covering The body 3b is connected to the plate 3a with bolts and nuts 5 and is water-tightly covered over the remaining substantially half circumference of the fluid pipe 1 and has a receiving portion 3c that opens in a branching direction from the fluid pipe 1. Yes. Further, on the both sides in the axial direction of the fluid tube 1 in the split T-shaped tube 3, separation preventing push wheels 6, 6 having a two-part structure for sealing the inner surface of the split T-shaped tube 3 and the outer surface of the fluid tube 1 are mounted.
流体弁4は、弁軸4bを回動することにより分岐部材2の流路を開閉する弁体(図示せず)を有している。また、受口部3cと流体弁4には、互いに対向するフランジ3d、4dをそれぞれ有しており、該フランジ3d、4dはシール材を介して、それぞれのフランジ3d、4dに上下各2箇所ずつ同軸に形成されたボルト孔に挿通されたボルト・ナット7によって、締付け固定されている。   The fluid valve 4 has a valve body (not shown) that opens and closes the flow path of the branch member 2 by rotating the valve shaft 4b. Further, the receiving port 3c and the fluid valve 4 have flanges 3d and 4d facing each other, and the flanges 3d and 4d are respectively connected to the flanges 3d and 4d at two locations on the upper and lower sides through a sealing material. The bolts and nuts 7 inserted through the bolt holes formed coaxially are tightened and fixed.
流体管1、割T字管3、流体弁4は、地中に埋設される管網を構成する配管の一部であり、地震などによる外力又は経年変化によりフランジ3d、4d間の密封性が低下する場合がある。このように、フランジ3d、4d間の密封性が低下を防止するため、図1(a)、(b)及び図2に示されるように、フランジ3d、4dにはフランジ離間防止装置10が一対のフランジ3d、4dにおいて周方向に隣接するボルト・ナット7、7同士の間にそれぞれ取付けられている。以下、フランジ離間防止装置10について説明する。   The fluid pipe 1, the split T-shaped pipe 3, and the fluid valve 4 are a part of pipes constituting a pipe network embedded in the ground, and the sealing performance between the flanges 3d and 4d is caused by an external force or secular change due to an earthquake or the like. May decrease. Thus, in order to prevent the sealing performance between the flanges 3d and 4d from deteriorating, as shown in FIGS. 1 (a), 1 (b) and 2, a pair of flange separation prevention devices 10 is provided on the flanges 3d and 4d. The flanges 3d and 4d are attached between the bolts and nuts 7 and 7 adjacent to each other in the circumferential direction. Hereinafter, the flange separation preventing device 10 will be described.
図3に示されるように、フランジ離間防止装置10は、挟持部材11、挟持片12及び介設部材13から構成される押圧方向変換部材18、押圧部材としての押圧ボルト14、ナット15、座金16により、主に構成される。   As shown in FIG. 3, the flange separation preventing device 10 includes a pressing direction conversion member 18 including a clamping member 11, a clamping piece 12 and an interposed member 13, a pressing bolt 14 as a pressing member, a nut 15, and a washer 16. It is mainly comprised by.
最初に、挟持部材11について説明する。挟持部材11は一対のフランジ3d、4dの外周面に対向する内底面11aを有する基底部11xと、基底部11xの両端に立設される壁部11y、11zからなる側面視略コ字状の部材である。壁部11yの内壁には、内底面11aに連なりフランジの管軸方向端面を押圧するフランジ押圧面11bが形成されている。また、壁部11zの内壁には、内底面11aに連なる内壁面11cと、内壁面11cに連なりフランジ押圧面11bに向かって、内底面11aから遠ざかるように所定の角度で傾斜する壁部傾斜面11dを備える凹部11jが形成されている。該凹部には、後述する押圧方向変換部材18を構成する挟持片12及び介設部材13が収容される。   First, the clamping member 11 will be described. The holding member 11 is substantially U-shaped in a side view including a base portion 11x having an inner bottom surface 11a facing the outer peripheral surfaces of the pair of flanges 3d and 4d, and wall portions 11y and 11z erected on both ends of the base portion 11x. It is a member. On the inner wall of the wall portion 11y, a flange pressing surface 11b is formed which continues to the inner bottom surface 11a and presses the end surface in the tube axis direction of the flange. Further, the inner wall of the wall portion 11z includes an inner wall surface 11c continuous with the inner bottom surface 11a, and a wall inclined surface inclined at a predetermined angle so as to move away from the inner bottom surface 11a toward the flange pressing surface 11b connected to the inner wall surface 11c. A recess 11j having 11d is formed. The concave portion accommodates a sandwiching piece 12 and an interposed member 13 constituting a pressing direction changing member 18 described later.
内壁面11cは、後述する介設部材13の側壁13cが摺動する壁面となっており、壁部傾斜面11dは、後述する挟持片12の傾斜面12bが摺動する壁面となっている。また、基底部11xの内底面11aに略垂直に貫通する雌ねじ11eが設けられ、該雌ねじ11eに押圧ボルト14が螺合されている。   The inner wall surface 11c is a wall surface on which a side wall 13c of an interposed member 13 described later slides, and the wall portion inclined surface 11d is a wall surface on which an inclined surface 12b of a holding piece 12 described later slides. Further, a female screw 11e that penetrates substantially perpendicularly to the inner bottom surface 11a of the base portion 11x is provided, and a pressing bolt 14 is screwed into the female screw 11e.
つぎに、挟持片12について説明する。フランジの管軸方向の端面を押圧するフランジ押圧面12a、押圧部材14の進退方向に傾斜し、介設部材13の傾斜面13dと摺動可能な傾斜押圧面12d、壁部傾斜面11dと摺動可能な傾斜面12b及び内壁面11c当接する底部壁12cを備え、厚さ方向に端面12f、12fを有し、側面視略台形状の部材である。また、端面12fには、所定の深さを有する両端の閉じた溝12eが設けられ、弾性体17が溝12eと該溝12eに対向する側壁11fとの間に収納され、弾性体17の反発力によって、挟持片12は挟持部材11内に保持されている。このように挟持片12を挟持部材11内に弾性体17で保持することで、挟持片12に曲げ力が加わったときであっても、弾性体17が変形して挟持片12は追従するので、フランジ3d、4dに無理な力が加わることなく、フランジ3d、4dの傷付きを防ぐことができる。   Next, the sandwiching piece 12 will be described. A flange pressing surface 12a that presses the end surface of the flange in the tube axis direction, an inclined pressing surface 12d that is slidable with the inclined surface 13d of the interposing member 13 and that is slidable with the inclined surface 13d of the interposed member 13, and a sliding surface with the wall inclined surface 11d. The member is provided with a movable inclined surface 12b and a bottom wall 12c that comes into contact with the inner wall surface 11c, has end surfaces 12f and 12f in the thickness direction, and has a substantially trapezoidal shape in side view. The end face 12f is provided with a groove 12e closed at both ends having a predetermined depth, and the elastic body 17 is accommodated between the groove 12e and the side wall 11f facing the groove 12e. The clamping piece 12 is held in the clamping member 11 by force. By holding the holding piece 12 in the holding member 11 with the elastic body 17 in this way, even when a bending force is applied to the holding piece 12, the elastic body 17 is deformed and the holding piece 12 follows. The flanges 3d and 4d can be prevented from being damaged without applying an excessive force to the flanges 3d and 4d.
つぎに、介設部材13について説明する。介設部材13は、押圧ボルト14の押圧面14bによって押圧される被押圧面13aと傾斜面13dを備え、所定の肉厚を有する側面視略台形状の部材である。   Next, the interposed member 13 will be described. The interposed member 13 is a member having a substantially trapezoidal shape in side view, which includes a pressed surface 13a and an inclined surface 13d pressed by the pressing surface 14b of the pressing bolt 14 and has a predetermined thickness.
図3に示されるように、挟持部材11内の凹部11jに、挟持片12、介設部材13は収容され、挟持部材11の内底面11aに螺合された押圧ボルト14を螺入させて、押圧ボルト14の押圧面14bによって介設部材13の被押圧面13aを押圧し、介設部材13の傾斜面13dと挟持片12の傾斜押圧面12dとを摺動させながら進入させると、挟持片12のフランジ押圧面12aは、押圧ボルト14の螺入方向と異なる方向に移動し、フランジ押圧面12aは、押圧ボルト14の螺入方向に対し略直角に移動する。そして、押圧ボルト14の押圧力は、介設部材13の傾斜面13dと挟持片12の傾斜押圧面12dとの楔効果で増幅され、挟持片12のフランジ押圧面12aと挟持部材11のフランジ押圧面11bとの間で一対のフランジ3d、4dを挟持して、一対のフランジが離間することを防止できるようになっている。   As shown in FIG. 3, the clamping piece 12 and the interposed member 13 are accommodated in the recess 11 j in the clamping member 11, and the pressing bolt 14 screwed into the inner bottom surface 11 a of the clamping member 11 is screwed in. When the pressed surface 13a of the interposed member 13 is pressed by the pressing surface 14b of the pressing bolt 14 and the inclined surface 13d of the interposed member 13 and the inclined pressing surface 12d of the holding piece 12 are slid and entered, the holding piece 12, the flange pressing surface 12a moves in a direction different from the screwing direction of the pressing bolt 14, and the flange pressing surface 12a moves substantially at right angles to the screwing direction of the pressing bolt 14. Then, the pressing force of the pressing bolt 14 is amplified by the wedge effect of the inclined surface 13 d of the interposed member 13 and the inclined pressing surface 12 d of the holding piece 12, and the flange pressing surface 12 a of the holding piece 12 and the flange pressing of the holding member 11 The pair of flanges 3d and 4d are sandwiched between the surface 11b and the pair of flanges can be prevented from separating.
つぎに、フランジ離間防止装置10の取付工程について説明する。   Next, an attachment process of the flange separation preventing device 10 will be described.
図1、図2及び図3に示されるように、フランジ3d、4dを締付け固定する複数のボルト・ナット7、7…の間に、挟持部材11のフランジ押圧面11b、内壁面11cの間にフランジ3d、4dが位置するように配置し、押圧ボルト14を軽く締付け、挟持片12のフランジ押圧面12aと挟持部材11のフランジ押圧面11bとの間に一対のフランジ3d、4dを軽く挟持して、フランジ離間防止装置10をフランジ3d、4dに仮止めする。同じく、他の複数のフランジ離間防止装置10も、互いにフランジ3d、4dの管軸に対称になるように配置する。尚、図2においては、フランジ離間防止装置10は6個配置されているが、設置条件に応じて、フランジ3d、4dを締付け固定する複数のボルト・ナット7、7…の間すべてに配置してもよいし、複数のボルト・ナット7、7…の一個おきに配置してもよい。尚、図1(a)、(b)において、フランジ離間防止装置10は、すべての押圧ボルト14が流体管1側に配置されるように取付けられているが、すべての押圧ボルト14が流体弁4側に配置されるように取付けてもよいし、押圧ボルト14が流体管1側と流体弁4側とに配置されるように取付けてもよい。   As shown in FIGS. 1, 2 and 3, between the plurality of bolts and nuts 7, 7... That fasten and fix the flanges 3d and 4d, between the flange pressing surface 11b and the inner wall surface 11c of the clamping member 11. It arrange | positions so that the flanges 3d and 4d may be located, lightly clamps the pressing bolt 14, and lightly clamps a pair of flanges 3d and 4d between the flange pressing surface 12a of the clamping piece 12 and the flange pressing surface 11b of the clamping member 11. Then, the flange separation preventing device 10 is temporarily fixed to the flanges 3d and 4d. Similarly, the other plurality of flange separation preventing devices 10 are also arranged so as to be symmetric with respect to the pipe axes of the flanges 3d and 4d. In FIG. 2, six flange separation prevention devices 10 are arranged. However, according to the installation conditions, the flange separation preventing devices 10 are arranged between a plurality of bolts, nuts 7, 7... For tightening and fixing the flanges 3d, 4d. Alternatively, a plurality of bolts, nuts 7, 7,... 1A and 1B, the flange separation preventing device 10 is attached so that all the pressing bolts 14 are arranged on the fluid pipe 1 side, but all the pressing bolts 14 are fluid valves. You may attach so that it may be arrange | positioned at 4 side, and you may attach so that the press volt | bolt 14 may be arrange | positioned at the fluid pipe | tube 1 side and the fluid valve 4 side.
つぎに、押圧ボルト14の六角穴14aに六角レンチ等の工具を挿入して、所定の締付トルクによって締付けを行う。押圧ボルト14を締付けると、介設部材13は押圧ボルト14によって押圧され、挟持片12の傾斜押圧面12dに沿って侵入し、押圧ボルト14の押圧力は楔効果で増幅される。該増幅された押圧力によって、一対のフランジ3d、4dは挟持片12のフランジ押圧面12aと挟持部材11のフランジ押圧面11bとの間で挟持される。   Next, a tool such as a hexagon wrench is inserted into the hexagon hole 14a of the pressing bolt 14 and tightened with a predetermined tightening torque. When the pressing bolt 14 is tightened, the interposed member 13 is pressed by the pressing bolt 14 and enters along the inclined pressing surface 12d of the holding piece 12, and the pressing force of the pressing bolt 14 is amplified by the wedge effect. With the amplified pressing force, the pair of flanges 3 d and 4 d are clamped between the flange pressing surface 12 a of the clamping piece 12 and the flange pressing surface 11 b of the clamping member 11.
同様に、周方向に沿って複数配設される他のフランジ離間防止装置10についても、押圧ボルト14を順次締付けることで、一対のフランジ3d、4dは挟持片12のフランジ押圧面12aと挟持部材11のフランジ押圧面11bとの間で周方向に亘って挟持され、フランジ離間防止装置10の取付工程が完了する。尚、押圧ボルト14は片締めにならないように、均等に少しずつ締めていくことが好ましい。最後に、座金16を介してナット15を挟持部材11に対してロックすることにより、押圧ボルト14の逆転防止を行う。尚、座金16はバネ座金が好ましい。   Similarly, with respect to the other flange separation preventing devices 10 arranged in a plurality along the circumferential direction, the pair of flanges 3d and 4d can be tightened with the flange pressing surface 12a of the holding piece 12 and the holding member by sequentially tightening the pressing bolts 14. 11 and the flange pressing surface 11b between the flange pressing surfaces 11b in the circumferential direction, and the mounting step of the flange separation preventing device 10 is completed. In addition, it is preferable to tighten the pressing bolt 14 little by little evenly so as not to be single-tightened. Finally, the nut 15 is locked to the clamping member 11 via the washer 16 to prevent the pressing bolt 14 from rotating backward. The washer 16 is preferably a spring washer.
ここで、図4に示されるように、点線囲い部Mは、本発明に係るフランジ離間防止装置10を使用した締付け状況を示す図で、点線囲い部Nは、従来のフランジ離間防止装置50を使用した締付け状況を示す図である。点線囲い部Mの本発明に係るフランジ離間防止装置10は、押圧ボルト14がフランジの径方向に配設されているので、押圧ボルト14を締付けるための六角レンチ60は、離脱防止押輪6と干渉することなく、無理なく押圧ボルト14の締付けを行うことができる。そして、押圧方向変換部材18によって押圧ボルト14の押圧方向がフランジ管軸方法に変換されるので、無理なく押圧ボルト14の締付けを行うことができる。一方、点線囲い部Nの従来のフランジ離間防止装置50は、押圧ボルト54がフランジの管軸方向に配設されているため、六角レンチ60が離脱防止押輪6と干渉し、押しボルト54の締付けを適正に行うことが困難となる。   Here, as shown in FIG. 4, the dotted line enclosing portion M is a view showing a tightening situation using the flange separation preventing device 10 according to the present invention, and the dotted line enclosing portion N is a conventional flange separation preventing device 50. It is a figure which shows the used tightening condition. In the flange separation preventing device 10 according to the present invention at the dotted line enclosing portion M, the pressing bolt 14 is disposed in the radial direction of the flange, so the hexagon wrench 60 for tightening the pressing bolt 14 interferes with the separation preventing pusher 6. The pressing bolt 14 can be tightened without difficulty. And since the pressing direction of the pressing bolt 14 is converted into the flange pipe axis method by the pressing direction converting member 18, the pressing bolt 14 can be tightened without difficulty. On the other hand, in the conventional flange separation preventing device 50 of the dotted line enclosing portion N, since the pressing bolt 54 is arranged in the tube axis direction of the flange, the hexagon wrench 60 interferes with the separation preventing presser wheel 6 and tightens the pressing bolt 54. It becomes difficult to carry out properly.
本発明のフランジ離間防止装置10は、以下のような作用効果を奏する。   The flange separation preventing device 10 of the present invention has the following operational effects.
本発明のフランジ離間防止装置10は、挟持部材11内の凹部11jに、挟持片12、介設部材13は収容され、挟持部材11の内底面11aに螺合された押圧ボルト14を螺入させて、押圧ボルト14の押圧面14bによって介設部材13の被押圧面13aを押圧し、介設部材13の傾斜面13dと挟持片12の傾斜押圧面12dとを摺動させながら進入させると、挟持片12のフランジ押圧面12aは、押圧ボルト14の螺入方向と異なる方向に移動し、フランジ押圧面12aは、押圧ボルト14の螺入方向に対し略直角に移動する。そして、押圧ボルト14の押圧力は、介設部材13の傾斜面13dと挟持片12の傾斜押圧面12dとの楔効果で増幅され、挟持片12のフランジ押圧面12aと挟持部材11のフランジ押圧面11bとの間で一対のフランジ3d、4dを挟持して、一対のフランジが離間することを防止できる。   In the flange separation preventing device 10 of the present invention, the clamping piece 12 and the interposition member 13 are accommodated in the recess 11j in the clamping member 11, and the pressing bolt 14 screwed into the inner bottom surface 11a of the clamping member 11 is screwed. Then, the pressed surface 13a of the interposed member 13 is pressed by the pressing surface 14b of the pressing bolt 14, and the inclined surface 13d of the interposed member 13 and the inclined pressing surface 12d of the sandwiching piece 12 are made to enter while sliding. The flange pressing surface 12 a of the clamping piece 12 moves in a direction different from the screwing direction of the pressing bolt 14, and the flange pressing surface 12 a moves substantially at right angles to the screwing direction of the pressing bolt 14. Then, the pressing force of the pressing bolt 14 is amplified by the wedge effect of the inclined surface 13 d of the interposed member 13 and the inclined pressing surface 12 d of the holding piece 12, and the flange pressing surface 12 a of the holding piece 12 and the flange pressing of the holding member 11 The pair of flanges 3d and 4d can be held between the surface 11b and the pair of flanges can be prevented from separating.
そして、本発明に係るフランジ離間防止装置10は、押圧ボルト14がフランジ3d、4dの径方向に配設されるので、押圧ボルト14を締付けるための六角レンチ60は、離脱防止押輪6と干渉することなく、無理なく押圧ボルト14の締付けを行うことができる。   In the flange separation preventing device 10 according to the present invention, the pressing bolt 14 is disposed in the radial direction of the flanges 3d and 4d, so the hexagon wrench 60 for tightening the pressing bolt 14 interferes with the separation preventing pusher wheel 6. The pressing bolt 14 can be tightened without difficulty.
また、押圧ボルト14の押圧力は、押圧方向変換部材18を介して、フランジ押圧面12aに伝わるので、フランジ押圧面12aとフランジ3dの端面との間の相対的な動き及びフランジ押圧面11bとフランジ4dの端面との間の相対的な動きはほとんどなくなる。その結果、挟持片12とフランジ3dとの間の相対的な動きはほとんどなくなる。その結果、フランジ3dの端面とフランジ押圧面12aとの間、フランジ4dとフランジ押圧面11bとの間の損傷、延いては錆の発生が抑えられることで、押圧ボルト14の押圧力の低下を抑制できるので、一対のフランジ3d、4dが離間することを確実に防止することができる。   Further, since the pressing force of the pressing bolt 14 is transmitted to the flange pressing surface 12a via the pressing direction converting member 18, the relative movement between the flange pressing surface 12a and the end surface of the flange 3d and the flange pressing surface 11b There is almost no relative movement between the end face of the flange 4d. As a result, there is almost no relative movement between the clamping piece 12 and the flange 3d. As a result, damage between the end face of the flange 3d and the flange pressing face 12a, and between the flange 4d and the flange pressing face 11b, and further, generation of rust can be suppressed, thereby reducing the pressing force of the pressing bolt 14. Since it can suppress, it can prevent reliably that a pair of flanges 3d and 4d leave | separate.
押圧ボルト14は基底部11xに略垂直に配設され、一方、フランジの離間力の方向、すなわちフランジの管軸方向の離間力と直交するので、フランジの管軸方向の離間力の押圧ボルト14への影響は小さくなる。また、フランジ3d、4dを押圧する挟持片12は、挟持部材11の壁部傾斜面11d及び介設部材13の傾斜面13dの2つの傾斜面によって支持される。その結果、フランジの管軸方向の離間力は、壁部傾斜面11d及び傾斜面13dの2つの傾斜面によって分散、支持されるので、押圧ボルト14はフランジの離間力の影響を受けにくくなり、確実にフランジの離間を防止することができる。   The pressing bolt 14 is disposed substantially perpendicular to the base portion 11x. On the other hand, the pressing bolt 14 is orthogonal to the direction of the separating force of the flange, that is, the separating force in the tube axis direction of the flange. The impact on is small. Further, the sandwiching piece 12 that presses the flanges 3 d and 4 d is supported by two inclined surfaces, that is, the wall inclined surface 11 d of the sandwiching member 11 and the inclined surface 13 d of the interposed member 13. As a result, the separation force in the tube axis direction of the flange is dispersed and supported by the two inclined surfaces of the wall inclined surface 11d and the inclined surface 13d, so that the pressing bolt 14 is less susceptible to the flange separation force, The separation of the flange can be reliably prevented.
以上、本発明の実施例を図面により説明してきたが、具体的な構成はこれら実施例に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。   Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.
例えば上記実施例においては、挟持片12の端面12fには、所定の深さを有する両端が閉じた溝12eが設けられていたが、これに限らず、本発明の挟持片12の変形例として図5に示されるように、挟持片12’の端面12f’の溝12e’は、両端が開放された溝12e’であってもよい。   For example, in the above-described embodiment, the end face 12f of the sandwiching piece 12 is provided with the groove 12e having a predetermined depth and closed at both ends. However, the present invention is not limited thereto, and as a modification of the sandwiching piece 12 of the present invention, As shown in FIG. 5, the groove 12e ′ of the end face 12f ′ of the sandwiching piece 12 ′ may be a groove 12e ′ having both ends opened.
また、上記実施例では、挟持片12のフランジ押圧面12a、内底面11a及びフランジ押圧面11bは、防錆処理以外の特段の塗装、介在物等が設けられていないが、本発明の挟持部材11の他の変形例として、図5(b)に示されるように、挟持片12のフランジ押圧面12aに介在体12h、挟持部材の内底面11aに介在体11g及び挟持部材11のフランジ押圧面11bに介在体11hを設け、フランジ3d、4dを保護、絶縁してもよい。尚、介在体11h、11j、12hは、樹脂またはゴム等を成形した絶縁体を接着するほか、ナイロンコーティング、ゴムライニング、プラスチック塗装、エポキシ樹脂粉体塗装等により形成することができる。   Further, in the above embodiment, the flange pressing surface 12a, the inner bottom surface 11a, and the flange pressing surface 11b of the sandwiching piece 12 are not provided with any special coating or inclusions other than the rust prevention treatment. 11B, as shown in FIG. 5B, the intermediate body 12h is provided on the flange pressing surface 12a of the holding piece 12, and the intermediate body 11g and the flange pressing surface of the holding member 11 are provided on the inner bottom surface 11a of the holding member. 11b may be provided with an interposing body 11h to protect and insulate the flanges 3d and 4d. The interposers 11h, 11j, and 12h can be formed by bonding an insulator formed by resin or rubber, or by nylon coating, rubber lining, plastic coating, epoxy resin powder coating, or the like.
実施例2に係る管継手につき、図6を参照して説明する。尚、前記実施例1に示される構成部分と同一構成部分に付いては同一符号を付して重複する説明を省略する。   A pipe joint according to the second embodiment will be described with reference to FIG. Note that the same components as those shown in the first embodiment are denoted by the same reference numerals and redundant description is omitted.
実施例1に係るフランジ離間防止装置10においては、挟持片12の端面12fには、所定の深さを有する両端が閉じた溝12eが設けられ、弾性体17が溝12eと該溝12eに対向する側壁11fとの間に収納され、弾性体17の反発力によって、挟持片12は挟持部材11内に保持されている。これに対し、実施例2に係るフランジ離間防止装置20においては、図6(a)に示されるように、挟持片22の各側端面22f、22fには凸部22eが設けられ、該凸部22eは挟持部材21に形成された溝21f内に摺動可能に収容されている点で相違している。   In the flange separation preventing device 10 according to the first embodiment, the end surface 12f of the holding piece 12 is provided with a groove 12e having a predetermined depth and closed at both ends, and the elastic body 17 faces the groove 12e and the groove 12e. The sandwiching piece 12 is held in the sandwiching member 11 by the repulsive force of the elastic body 17. On the other hand, in the flange separation preventing device 20 according to the second embodiment, as shown in FIG. 6A, the side end surfaces 22f and 22f of the sandwiching piece 22 are provided with convex portions 22e. 22e is different in that it is slidably accommodated in a groove 21f formed in the clamping member 21.
このような構成により、挟持部材21に挟持片22、介設部材13の組立てが容易になるとともに、挟持片22の倒れを防ぐことができるので、一対のフランジ3d、4dにフランジ離間防止装置20を取付ける際にも、フランジ3d、4dの傷付きを防ぐことができる。また、凸部22eは剛性があるので、挟持片22が、挟持部材21の凹部から突出した状態で曲げ力を受けても、凸部22eと溝21fとの嵌合によって、挟持片22は傾くことなく、適切な姿勢を保つことができるので、確実にフランジ離間防止の効果を発揮することができる。   With such a configuration, the clamping piece 22 and the interposition member 13 can be easily assembled to the clamping member 21, and the clamping piece 22 can be prevented from falling down. Therefore, the flange separation preventing device 20 is provided between the pair of flanges 3d and 4d. Also when attaching, it can prevent the flanges 3d and 4d from being damaged. Moreover, since the convex part 22e is rigid, even if the clamping piece 22 receives bending force in the state which protruded from the recessed part of the clamping member 21, the clamping piece 22 inclines by fitting with the convex part 22e and the groove | channel 21f. Therefore, since an appropriate posture can be maintained, the effect of preventing flange separation can be surely exhibited.
さらに、実施例2の変形例として、図6(b)に示されるように、挟持部材21’内の凹部21j’を底面21a’まで拡張し、該凹部21j’内に介設部材23の傾斜面23dの延長部23eを収納する構成とすることもできる。このように構成することで、押圧ボルト14のストローク全長にわたり、挟持片22の倒れを防ぎつつ、一対のフランジ3d、4dを押圧することができる。   Further, as a modification of the second embodiment, as shown in FIG. 6B, the recess 21j ′ in the holding member 21 ′ is expanded to the bottom surface 21a ′, and the interposed member 23 is inclined in the recess 21j ′. It can also be set as the structure which accommodates the extension part 23e of the surface 23d. By comprising in this way, a pair of flange 3d, 4d can be pressed over the stroke whole length of the press volt | bolt 14, preventing the fall of the clamping piece 22. FIG.
尚、実施例2においても、挟持片22のフランジ押圧面22a、挟持部材21、21’の内底面21a、21a’、フランジ押圧面21b、21b’に対し、樹脂またはゴム等を成形した絶縁体を接着、ナイロンコーティング、ゴムライニング、プラスチック塗装、エポキシ樹脂粉体塗装等により介在体を形成してもよい。   Also in the second embodiment, an insulator in which resin or rubber is molded on the flange pressing surface 22a of the clamping piece 22, the inner bottom surfaces 21a and 21a 'of the clamping members 21 and 21', and the flange pressing surfaces 21b and 21b '. The inclusion may be formed by bonding, nylon coating, rubber lining, plastic coating, epoxy resin powder coating, or the like.
つぎに、実施例3に係るフランジ離間防止装置30につき、図7、図8を参照して説明する。尚、前記実施例に示される構成部分と同一構成部分に付いては同一符号を付して重複する説明を省略する。   Next, the flange separation preventing device 30 according to the third embodiment will be described with reference to FIGS. It should be noted that the same components as those shown in the above-described embodiment are denoted by the same reference numerals and redundant description is omitted.
図7(a)に示されるように、フランジ離間防止装置30は、実施例1及び2と異なり、介設部材13、23を設けず、挟持片32は押圧部材34の傾斜押圧面34aによって直接押圧される。押圧部材34の傾斜押圧面34aは先細りの傾斜面を有し、該傾斜押圧面34aの傾斜面は挟持片32の傾斜押圧面32dを押圧するので、押圧部材34の押圧力は楔効果によって増幅され、該増幅された押圧力によって、一対のフランジ3d、4dは挟持片32のフランジ押圧面32aと挟持部材31のフランジ押圧面31bとの間で挟持されるので、一対のフランジ3d、4dが離間することを確実に防止することができる。   As shown in FIG. 7A, unlike the first and second embodiments, the flange separation preventing device 30 is not provided with the interposition members 13 and 23, and the sandwiching piece 32 is directly formed by the inclined pressing surface 34 a of the pressing member 34. Pressed. The inclined pressing surface 34a of the pressing member 34 has a tapered inclined surface, and the inclined surface of the inclined pressing surface 34a presses the inclined pressing surface 32d of the holding piece 32, so that the pressing force of the pressing member 34 is amplified by the wedge effect. The pair of flanges 3d and 4d are held between the flange pressing surface 32a of the holding piece 32 and the flange pressing surface 31b of the holding member 31 by the amplified pressing force. Separation can be reliably prevented.
また、図7(a)、(b)に示されるように、複数の挟持部材31が、位置出し部材37に一体に取付けられ、一対のフランジ3d、4dの周方向に沿って所定の間隔を有するように取付けることもできる。   Further, as shown in FIGS. 7A and 7B, a plurality of clamping members 31 are integrally attached to the positioning member 37, and have a predetermined interval along the circumferential direction of the pair of flanges 3d and 4d. It can also be installed to have.
位置出し部材37は、分割片37a、37bからなり、各分割片37a、37bの端部を互いに重ねた重ね部37cをボルト・ナット38にて連結され、一部に開放部37eを有する環状部材に構成されている。また、各分割片37a、37bには、孔37dが周方向に所定の間隔で形成され、該孔37dに挟持部材31の凸部31kが挿入され、ボルト39によってフランジ離間防止装置30は位置出し部材37に固定されている。   The positioning member 37 is composed of divided pieces 37a and 37b, and an annular member having an open portion 37e partially connected to each other by overlapping portions 37c in which the ends of the divided pieces 37a and 37b overlap each other with bolts and nuts 38. It is configured. Further, holes 37d are formed in each of the divided pieces 37a and 37b at a predetermined interval in the circumferential direction, and the protrusions 31k of the clamping member 31 are inserted into the holes 37d, and the flange separation preventing device 30 is positioned by the bolts 39. It is fixed to the member 37.
このように位置出し部材37に固定されたフランジ離間防止装置30は、ボルト・ナット38を緩め、分割片37a、37bの間の開放部37eの間隔を拡げた状態で、フランジ3d、4dの径方向外側から取付けることができるので、複数の挟持部材31を一度に一対のフランジ3d、4dの周方向に沿って所定の間隔を設けて、容易に取付けることができ、組立て作業を短縮することができる。   In this way, the flange separation preventing device 30 fixed to the positioning member 37 loosens the bolts and nuts 38 and widens the gaps of the open portions 37e between the split pieces 37a and 37b, and the diameters of the flanges 3d and 4d. Since it can be attached from the outside in the direction, the plurality of clamping members 31 can be easily attached at a predetermined interval along the circumferential direction of the pair of flanges 3d, 4d at a time, and the assembly work can be shortened. it can.
図7(b)に示されるように、位置出し部材37の分割片37a、37bは、板幅方向に湾曲させて構成されているが、図8に示されるように、位置出し部材37’の分割片37a’、37b’は、板厚方向に湾曲させて構成してもよい。尚、図7(a)、(b)のフランジ離間防止装置30に代えて、実施例1のフランジ離間防止装置10、実施例2のフランジ離間防止装置20、20’に位置出し部材37、37’を使用できることはいうまでもない。   As shown in FIG. 7B, the split pieces 37a and 37b of the positioning member 37 are configured to bend in the plate width direction. However, as shown in FIG. The divided pieces 37a ′ and 37b ′ may be configured to be bent in the plate thickness direction. In addition, it replaces with the flange separation prevention apparatus 30 of Fig.7 (a), (b), and the positioning members 37 and 37 are added to the flange separation prevention apparatus 10 of Example 1, and the flange separation prevention apparatuses 20 and 20 'of Example 2. It goes without saying that 'can be used.
1 流体管
3d フランジ
4d フランジ
10 フランジ離間防止装置
11 挟持部材
11a 内底面
11d 壁部傾斜面
11x 基底部
11y 壁部
11z 壁部
12、12’ 挟持片
12a フランジ押圧面
12b 傾斜面
12d 傾斜押圧面(被押圧面)
13 介設部材
13a 被押圧面
13d 傾斜面
14 押圧ボルト(押圧部材)
14b 押圧面
18 押圧方向変換部材
20、20’ フランジ離間防止装置
21、21’ 挟持部材
22 挟持片
23 介設部材
30 フランジ離間防止装置
31 挟持部材
32 挟持片
37 位置出し部材
DESCRIPTION OF SYMBOLS 1 Fluid pipe 3d Flange 4d Flange 10 Flange separation prevention device 11 Clamping member 11a Inner bottom surface 11d Wall part inclined surface 11x Base part 11y Wall part 11z Wall part 12, 12 'Nipping piece 12a Flange pressing surface 12b Inclined surface 12d Inclined pressing surface ( Pressed surface)
13 Interposition member 13a Pressed surface 13d Inclined surface 14 Press bolt (pressing member)
14b Pressing surface 18 Pressing direction conversion member 20, 20 'Flange separation preventing device 21, 21' Holding member 22 Holding piece 23 Interposing member 30 Flange separation preventing device 31 Holding member 32 Holding piece 37 Positioning member

Claims (4)

  1. 基底部の両側に立設される壁部を有し、管網を構成する配管部材の一対のフランジを挟持する挟持部材を備え、前記基底部の内底面が前記一対のフランジの外周面に対向するように配置され、前記一対のフランジが離間することを防止するフランジ離間防止装置であって、
    前記挟持部材に進退可能に設けられる押圧部材により押圧され、該押圧部材の進退方向に対し傾斜する被押圧面と、前記押圧部材の進退方向と異なる方向に一方のフランジの管軸方向の端面を面で押圧するフランジ押圧面と、を有する押圧方向変換部材を備えることを特徴とするフランジ離間防止装置。
    The walls erected on both sides of the base portion possess, comprising a clamping member for clamping the pair of flanges of the pipe member constituting the tube network, facing the inner bottom surface of the base portion on the outer peripheral surface of the pair of flanges A flange separation preventing device arranged to prevent the pair of flanges from separating,
    A pressed surface that is pressed by a pressing member provided to the clamping member so as to be able to advance and retract, and is inclined with respect to the advancing / retreating direction of the pressing member, and an end surface in the tube axis direction of one flange in a direction different from the advancing / retreating direction of the pressing member. flange spaced prevention device, characterized in that it comprises a pressing direction converting member having a flange pressing surface for pressing a plane, a.
  2. 前記押圧方向変換部材は、前記一対のフランジを挟持するための挟持片を備え、該挟持片は、前記被押圧面と、前記挟持部材の壁部傾斜面に当接する傾斜面と、を備えることを特徴とする請求項1に記載のフランジ離間防止装置。 The pressing direction converting member is provided with clamping pieces for clamping said pair of flanges,該挟Jihen, it comprises said pressed surface, and a slanted surface abutting the wall portion inclined surface of the clamping member The flange separation preventing device according to claim 1.
  3. 前記押圧部材は前記基底部に略垂直に配設され、前記押圧部材と前記挟持片との間に介設部材を有し、該介設部材は、前記押圧部材により押圧される被押圧面と、前記挟持片の被押圧面を押圧する傾斜面と、を備えることを特徴とする請求項2に記載のフランジ離間防止装置。   The pressing member is disposed substantially perpendicular to the base portion, and has an interposed member between the pressing member and the clamping piece, and the interposed member includes a pressed surface pressed by the pressing member, The flange separation preventing device according to claim 2, further comprising an inclined surface that presses a pressed surface of the clamping piece.
  4. 円弧状の複数の分割片を締結部材で連結して形成される位置出し部材に、所定の間隔を設けて複数の前記フランジ離間防止装置を配置、固定したことを特徴とする請求項1ないし3のいずれかに記載のフランジ離間防止装置。   4. A plurality of said flange separation preventing devices are arranged and fixed at predetermined intervals on a positioning member formed by connecting a plurality of arc-shaped divided pieces with fastening members. The flange separation prevention device according to any one of the above.
JP2014056014A 2014-03-19 2014-03-19 Flange separation prevention device Active JP6327897B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014056014A JP6327897B2 (en) 2014-03-19 2014-03-19 Flange separation prevention device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014056014A JP6327897B2 (en) 2014-03-19 2014-03-19 Flange separation prevention device

Publications (2)

Publication Number Publication Date
JP2015178850A JP2015178850A (en) 2015-10-08
JP6327897B2 true JP6327897B2 (en) 2018-05-23

Family

ID=54263039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014056014A Active JP6327897B2 (en) 2014-03-19 2014-03-19 Flange separation prevention device

Country Status (1)

Country Link
JP (1) JP6327897B2 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS558283U (en) * 1978-07-03 1980-01-19
SE434178B (en) * 1982-11-17 1984-07-09 Ericsson Telefon Ab L M KLEMFORBAND
US6173993B1 (en) * 1997-09-05 2001-01-16 Ebaa Iron, Inc. Joint restraint
JP4412596B2 (en) * 2004-06-02 2010-02-10 コスモ工機株式会社 Flange joining device
JP5529411B2 (en) * 2008-12-04 2014-06-25 コスモ工機株式会社 Flange separation prevention device
JP3176768U (en) * 2012-04-20 2012-07-05 株式会社カワタテック Fastener and gripping device provided with a tightening mechanism

Also Published As

Publication number Publication date
JP2015178850A (en) 2015-10-08

Similar Documents

Publication Publication Date Title
KR101488337B1 (en) Coupling
US9528641B2 (en) Mechanical joint restraint with pipe grip ring assembly
JP4363565B2 (en) Flange joint for valve pit
JP4404254B2 (en) Flange joining device
JP6327897B2 (en) Flange separation prevention device
KR200390447Y1 (en) Ball clip joint structure for large size drain pipe connect
KR20140049653A (en) Pipe connection device
JP6262544B2 (en) Flange joint reinforcing structure and annular protective member used therefor
JP6300609B2 (en) Detachment prevention device
JP2003106478A (en) Uneven force supporting device in pipeline
JP5674335B2 (en) Support means
KR101171334B1 (en) Connecting device of corrugation pipes
JP2005233211A (en) Flange jointing device
JP2006046620A (en) Packing for flexible pipe joint
KR101580154B1 (en) Couplings for pipe repair
JP5998003B2 (en) Branch pipe connection device
KR101267263B1 (en) Pipe's connecting structure preventing a water leakage
JP2021076128A (en) Leakage repair device
JP6591738B2 (en) Flange separation prevention device
JP3537415B2 (en) Underdrain culvert fittings
JP2019143676A (en) Seal device
JP4390342B2 (en) Split case seal structure
JP6672504B2 (en) Flange reinforcement
KR200339759Y1 (en) connection for Corrugated steel pipes
JP5057593B2 (en) Support device for non-average forces in pipes

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20161108

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20170822

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170912

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20171108

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20180417

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20180417

R150 Certificate of patent or registration of utility model

Ref document number: 6327897

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250