JP2018189241A - Stationary ring for pipe joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing ring for a new pipe joint. SOLUTION: A fixing ring 7 used for fixing an elbow member 9 of a pipe joint 1 to a wall body 100 has a flat plate shape and an outer shape of a circular or polygonal shape, and an elbow member has an inner peripheral surface. A female threaded portion 70 to be screwed into the male threaded portion 22 of 9 is formed, four screw holes 71 are formed through at intervals of 90 ° in the circumferential direction, and a tool hole 72 is formed at a position different from the screw hole 71. .. A tool can be fitted into the tool hole 72 to change the screwing position of the fixing ring 7 with respect to the elbow member 9, and the fixing screw 8 is screwed into the wall body 100 via the screw hole 71. .. [Selection diagram] Fig. 2

Description

  The present invention relates to a fixing ring for a pipe joint fixed to a structure.

  Patent Document 1 discloses a fixing structure of a pipe joint that is partially passed through a through hole formed in a partition plate that partitions a partition and is fixed to the partition plate.

JP 2014-35051 A

  An object of the present invention is to provide a new fixing ring for a pipe joint.

  In order to achieve the above object, a fixing ring for a pipe joint according to claim 1 of the present invention is a fixing ring used for fixing an elbow member of a pipe joint to a structure, and has a flat plate shape. And the external shape is circular or polygonal, and an internal thread portion is formed on the inner peripheral surface to be screwed with the external thread portion of the elbow member, and four screw holes are formed at intervals of 90 ° in the circumferential direction. A tool hole is formed at a position different from the screw hole, and a position of the screwing with respect to the elbow member can be changed by fitting a tool into the tool hole, and the structure body via the screw hole. Screws for fixing are screwed in.

  Moreover, in order to achieve the said objective, in addition to the structure of Claim 1, the number of the said tool holes is less than the number of the said screw holes.

The disassembled perspective view of a pipe joint. The front view which shows the state which fixed the pipe joint to the wall. The partial cross section figure of the side which shows the state which fixed the pipe joint to the wall body. AA line sectional view of Drawing 3. The perspective view which shows another example of a coupling main body and an intermediate ring.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 2 to 4, the pipe joint 1 is attached to a wall body 100 as a structure. A through hole 103 is formed between the first surface 101 and the second surface 102 in the wall body 100. The pipe joint 1 is inserted into the through-hole 103 and supplies hot water received on the first surface 101 side to the second surface 102 side.

  FIG. 1 is an exploded perspective view of the pipe joint 1 in a direction along the axis L. FIG. In FIG. 1, the wall body 100 is positioned on the first surface 101 side in order of increasing distance from the first surface 101, the elbow member 9 constituting the joint body 2, and the flange member 3 forming the flange portion of the joint body 2. , Intermediate ring 4 and water stop ring 5. In FIG. 1, the wall body 100 is positioned on the second surface 102 side in order of increasing distance from the second surface 102, and a plurality of (two in this embodiment) screws as pin-shaped fixing members. 8, a fixing ring 7, a sliding ring 6, and a water stop ring 10.

  As shown in FIG.1 and FIG.3, the elbow member 9 has the cylindrical part 20 and the pipe connection part 21 arrange | positioned at L shape. The tubular portion 20 and the pipe connecting portion 21 are in communication with each other. A male screw portion 22 is formed on the outer peripheral surface of the cylindrical portion 20. A female screw portion 23 is formed on the inner peripheral surface of the cylindrical portion 20.

  The pipe connection part 21 is made of a known one-touch joint. For example, a tube P made of a synthetic resin such as crosslinked polyethylene or polybutene is connected to the tube connecting portion 21. For example, a pipe member (not shown) such as a water tap is connected to the female screw portion 23 of the cylindrical portion 20.

  As shown in FIGS. 1, 2, and 4, the male screw portion 22 is formed with a pair of plane portions 24 (first restricting portions). The pair of flat portions 24 are formed on opposite sides with the axis of the cylindrical portion 20 in between so as to be parallel to each other.

  As shown in FIGS. 3 and 4, the flange member 3 is attached to the proximal end side of the tubular portion 20. On the inner peripheral surface of the flange member 3, a female screw portion 30 that is screwed into the male screw portion 22 is formed. The flange member 3 is screwed up to the proximal end side of the cylindrical portion 20.

  As shown in FIGS. 3 and 4, after the flange member 3 is screwed into the tubular portion 20, the intermediate ring 4 and the water stop ring 5 are inserted into the tubular portion 20.

  As shown in FIGS. 1 and 4, the inner peripheral surface of the intermediate ring 4 corresponds to an insertion hole 40 having a shape corresponding to the cylindrical portion 20 and a pair of plane portions 24 formed in the male screw portion 22. A pair of shaped plate portions 41 (second regulating portions) is formed. That is, when the cylindrical part 20 is rotated in the circumferential direction in a state where the cylindrical part 20 is inserted through the insertion hole 40, the flat part 24 and the plate part 41 are brought into contact with each other.

  The intermediate ring 4 is formed by pressing a stainless steel plate or a steel plate. After pressing along the outer shape of the intermediate ring 4, the two flat projections formed on the inner side are bent outward to form the plate portion 41.

  As shown in FIG. 1, the water stop ring 5 is a flat ring-shaped packing, and is formed of a soft synthetic resin, rubber, or the like. The water stop ring 5 is formed with an insertion hole 50 through which the cylindrical portion 20 can be inserted.

  As shown in FIGS. 3 and 4, the tubular portion 20 into which the flange member 3, the intermediate ring 4 and the water stop ring 5 are inserted is inserted into the through hole 103 from the first surface 101 side.

  As shown in FIGS. 3 and 4, the water stop ring 10, the slip ring 6, and the fixing ring 7 are attached to the tip of the cylindrical portion 20 protruding from the second surface 102 in the same order.

  As shown in FIG. 1, the water stop ring 10 is a flat ring-like packing like the water stop ring 5. The water stop ring 10 is formed with an insertion hole 11 through which the cylindrical portion 20 can be inserted.

  As shown in FIGS. 3 and 4, the sliding ring 6 is a ring-shaped member for reducing rotational frictional resistance between the water stop ring 5 and the fixed ring 7. As shown in FIG. 1, the sliding ring 6 is formed with an insertion hole 60 through which the cylindrical portion 20 can be inserted.

  As shown in FIG. 1, an internal thread portion 70 that is screwed into the external thread portion 22 of the cylindrical portion 20 is formed on the inner peripheral surface of the fixing ring 7. As shown in FIGS. 1 and 2, the fixing ring 7 has a plurality of screw holes 71 through which the screws 8 are inserted at equal intervals in the circumferential direction (four in this embodiment). A plurality (two in this embodiment) of tool holes 72 for fitting tools are formed at equal intervals in the circumferential direction.

  When the fixing ring 7 is screwed into the male screw portion 22 of the cylindrical portion 20, a wall body 100 is interposed between the fixing ring 7 and the flange member 3 by inserting a tool such as a faucet wrench into the tool hole 72 and rotating the tool hole 72. Can be pinched strongly.

  In the state where the fixing ring 7 is attached as described above, when the tip of the cylindrical portion 20 protrudes too much from the fixing ring 7, the screwing amount of the flange member 3 to the cylindrical portion 20 is adjusted, and the cylindrical portion 20 The amount of protrusion from the fixing ring 7 is adjusted.

  As shown in FIGS. 2 to 4, the two screws 8 are inserted into the screw holes 71 of the fixing ring 7 and screwed using a tool such as an impact driver. The screw 8 is a tapping screw with a drill, and can be screwed into the wall body 100 or the like without a pilot hole.

  The screw 8 is inserted into the insertion hole 71 of the fixing ring 7, passes through the sliding ring 6 and the water stop ring 10, and is screwed into the wall body 100. The screw 8 passes through the wall body 100 and the water stop ring 5 and reaches the intermediate ring 4, and further passes through the intermediate ring 4 and through the flange member 3.

  The screw 8 makes the fixed ring 7 and the wall body 100 non-rotatable relative to each other, and engages with the intermediate ring 4 to make the intermediate ring 4 and the wall body 100 non-rotatable.

  As shown in FIG. 2, the screw 8 is screwed into a place where the elbow member 9 is not damaged among the four places of the screw hole 71. That is, when the fixing ring 7 is screwed into the cylindrical portion 20, the fixing ring 7 is adjusted so that the screw hole 71 is disposed at a position avoiding the joint body 2.

  Since the four screw holes 71 are formed at equal intervals on the circumference, the position adjustment of the screw holes 71 can be performed at 90 ° intervals. Further, if the screw hole 71 is disposed in the vicinity of the flat surface portion 22 with the flat surface portion 22 formed in the cylindrical portion 20 as a guide, the elbow member 9 is not damaged.

  As shown in FIGS. 2 to 4, when a faucet or the like is screwed into the female thread portion 23 of the joint body 2 with the pipe joint 1 attached to the wall body 100, the joint body 2 becomes a faucet or the like. Try to carry around. Then, the flat surface portion 24 formed on the joint body 2 and the plate portion 41 formed on the intermediate ring 4 come into contact with each other, and the intermediate ring 4 also tries to rotate.

  However, the intermediate ring 4 is not rotatable relative to the wall body 100 via the screws 8. That is, even if the joint body 2 is not locked with a tool or the like, the joint body 2 is prevented from being rotated using the screw 8 for the fixing ring 7, and a faucet or the like can be easily screwed in. . In this way, the configuration can be simplified by using the screws 8 for the fixing ring 7.

  As shown in FIGS. 2, 3, and 4, in the pipe joint 1, the outer diameter of the intermediate ring 4 is larger than the outer diameter of the fixed ring 7.

  When an operator screws the screw 8 from the fixing ring 7 to the intermediate ring 4, he or she fears damaging the elbow member 9 and may screw the fixing ring 7 radially outward. However, even if the screw 8 is inclined outward in the radial direction of the fixing ring 7, the screw 8 can be engaged with the intermediate ring 4, and the screwing operation of the screw 8 is facilitated.

<Modification>
In addition, the said embodiment can also be changed as follows, for example.
As shown in FIG. 5, in the joint body 2 of the pipe joint 1, the flat portion 24 formed on the male threaded portion 22 of the elbow member 9 is deleted, and a groove 200 (first regulation) is formed in the male threaded portion 22. Part). Further, the plate portion 41 formed on the intermediate ring 4 is deleted, and a projection 400 (second restricting portion) having a shape corresponding to the groove 200 is formed on the inner peripheral surface of the intermediate ring 4.

  When a water faucet or the like is screwed into the female threaded portion 23 of the elbow member 9, if the elbow member 9 tries to rotate with the water faucet, the groove 200 hits the projection 400 to make the relative rotation impossible, and the elbow member 9 rotates. Is suppressed.

  In addition, the shape of a 1st control part and a 2nd control part is not this limitation, When a joint main body tries to rotate together, what is necessary is just to mutually hit and to suppress a relative rotation.

  In the pipe joint 1, the intermediate ring 4 is disposed between the second surface 102 and the fixing ring 7.

  ○ The flange member 3 is formed integrally with the elbow member 9.

  ○ The shape of the joint body 2 is, for example, an I-shaped nipple or a T-shaped cheese.

  ○ Make the outer shape of the intermediate ring 4 and the fixing ring 7 polygonal.

  ○ The water stop ring 5 is disposed only on the first surface 101 side or only on the second surface 102 side of the wall body 100. Further, the water stop ring 5 may be omitted in applications / environments where it is not necessary to consider the inflow of liquid or the like.

  ○ Form a threaded portion on the inner or outer peripheral surface of the pipe connecting portion 21 and connect a joint or the like.

  ○ Other fixing members include tapping screws, nails and pins.

  ○ Other structures include floors and ceilings.

<Appendix>
A technical idea that can be grasped from the above embodiment will be described.
(1) A cylindrical portion inserted into a through hole between the first surface and the second surface of the structure, and disposed on the first surface side with respect to the structure and communicated with the cylindrical portion A tube connecting portion to which a tubular body is connected and a flange portion provided on a proximal end side of the cylindrical portion, and an external thread portion is formed on an outer peripheral surface of the cylindrical portion, and the cylindrical portion A female screw part is formed on the inner peripheral surface of the joint body, and a joint body in which a first restricting part is formed in a part of the male screw part, and the second surface side with respect to the structure, A fixing ring that is screwed into the male screw portion of the cylindrical portion and sandwiches the structure body with the flange portion, and between the flange portion and the first surface of the structure body or the first portion of the structure body. The insertion hole is disposed between the two surfaces and the fixing ring, and has an insertion hole corresponding to the cylindrical portion. An intermediate ring having a shape corresponding to the first restricting portion and restricting relative rotation with the cylindrical portion by contacting the first restricting portion, and an intermediate ring formed from the fixed ring A pin-shaped fixing member that is passed to the structure and makes the fixing ring and the structure non-rotatable relative to each other. The fixing member reaches the intermediate ring, and reaches the intermediate ring. A pipe joint that is engaged to render the intermediate ring and the structure non-rotatable.

(2) The pipe joint according to the technical idea (1), wherein an outer diameter of the intermediate ring is larger than an outer diameter of the fixed ring.

  DESCRIPTION OF SYMBOLS 2 ... Joint main body, 3 ... Flange member, 4 ... Intermediate ring, 7 ... Fixing ring, 8 ... Screw, 9 ... Elbow member, 20 ... Cylindrical part, 24 ... Planar part, 41 ... Plate part.

Claims (2)

  A fixing ring used for fixing an elbow member of a pipe joint to a structure, which is flat and has an outer shape of a circle or a polygon, and an inner peripheral surface is threaded on a male thread portion of the elbow member. An internal thread portion is formed, and four screw holes are formed at intervals of 90 ° in the circumferential direction. Tool holes are formed at positions different from the screw holes. A fixing ring for a pipe joint, wherein the screwing position with respect to the elbow member can be changed, and a screw for fixing is screwed into the structure through the screw hole.   The fixing ring for a pipe joint according to claim 1, wherein the number of the tool holes is smaller than the number of the screw holes.

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