JP2020073811A - Fixing method of pipe joint - Google Patents

Abstract

To provide a fixing method of a pipe joint capable of making a work for screwing a faucet and the like to a female screw portion of a cylindrical portion be easily performed.SOLUTION: A pipe connection portion 21 is disposed at a first surface 101 side of a wall body 100. A cylindrical portion 20 is inserted to a through hole 103 of the wall body 100. At a first surface 101 side of the wall body 100, an intermediate ring 4 suppressed in relative rotation to a male screw portion 22, is inserted to the male screw portion 22 of the cylindrical portion 20. A fixing ring 7 engaged with the male screw portion 22 and keeping the male screw portion 22 in a state of being projected to a second surface 102 side of the wall body 100, is inserted to the male screw portion 22 in a state of projecting the male screw portion 22 to the second surface 102 side of the wall body 100 from the through hole 103, the wall body 100 and the intermediate ring 4 are bored by a screw 8 while inserting the screw 8 to the fixing ring 7, and the screw 8 is mounted on the wall body 100 in a state of penetrating through the fixing ring 7 and the intermediate ring 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for fixing a pipe joint.

  Patent Document 1 discloses a fixing structure of a pipe joint that is partially fixed to a partition plate by penetrating a through hole formed in the partition plate for partitioning the partition. The fixing structure of the pipe joint includes a pipe joint having a tubular insertion portion that is inserted into a through hole formed in a partition plate that partitions the compartment, and a partition plate that is sandwiched in a state where the insertion portion is inserted into the through hole. And a fixing member for fixing the pipe joint to the partition plate.

  An outer peripheral screw portion is formed on the outer peripheral surface of the insertion portion, and a first flat surface portion is formed on the outer peripheral screw portion. Furthermore, the fixing structure for the pipe joint includes an intermediate member having a second flat surface portion arranged so as to face the first flat surface portion. At least a part of the outer peripheral surface of the intermediate member is formed with a planar outer peripheral flat surface portion.

  When the pipe member is connected to the pipe joint in a state where the pipe joint is fixed to the partition plate by the fixing member, the outer peripheral flat surface portion formed on the intermediate member is sandwiched with, for example, a tool. Then, even if the pipe joint tries to rotate, the first flat surface portion formed in the insertion portion hits the second flat surface portion formed in the insertion hole of the intermediate member, and rotation of the pipe joint is suppressed.

JP, 2014-35051, A

  In the fixed structure of the pipe joint of Patent Document 1, when connecting the pipe member to the pipe joint, there is the trouble of separately requiring a tool such as a spanner, and the connecting work is troublesome.

  An object of the present invention is to provide a method for fixing a pipe joint, which can easily perform a work of screwing a water faucet or the like into an internal thread portion of a tubular portion.

  In order to achieve the above-mentioned object, the method for fixing a pipe joint according to claim 1 of the present invention is such that a pipe connecting portion of the pipe joint is arranged on a first surface side of a wall body, and a penetration provided in the wall body. With the tubular portion of the pipe joint inserted into the hole, the male screw portion formed on the outer peripheral surface of the tubular portion of the pipe joint is projected from the through hole to the second surface side of the wall body. , An intermediate ring in which the relative rotation with the male screw portion is suppressed, and the male screw portion that is screwed into the male screw portion to maintain the male screw portion protruding toward the second surface side of the wall body. And a pin-shaped fixing member is inserted into the fixing ring, the intermediate ring is pierced by the fixing member, and the fixing member is inserted into the wall in a state of penetrating the fixing ring and the intermediate ring. Attach to the body.

  In order to achieve the above object, a method for fixing a pipe joint according to a second aspect of the present invention is such that a pipe connection portion of the pipe joint is arranged on a first surface side of a wall body, and a through hole provided in the wall body is provided. The tubular portion of the pipe joint is inserted into the hole, and on the first surface side of the wall body, relative rotation with the male screw portion formed on the outer peripheral surface of the tubular portion is suppressed. An intermediate ring is inserted, and in a state where the male screw portion is projected from the through hole to the second surface side of the wall body, the male screw portion is screwed to the male screw portion, and the male screw portion is the wall. A fixing ring that keeps projecting to the second surface side of the body is inserted, and the intermediate ring is pierced by the fixing member while inserting the pin-shaped fixing member into the fixing ring and the wall body.

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 of the side surface which shows the state which fixed the pipe joint to the wall. Sectional drawing on the AA line of FIG. The perspective view which shows another example of a joint main body and an intermediate ring.

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

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

  As shown in FIGS. 1 and 3, the elbow member 9 includes a tubular portion 20 and a pipe connecting portion 21 arranged in an L shape. The tubular portion 20 and the pipe connecting portion 21 are internally communicated with each other. A male screw portion 22 is formed on the outer peripheral surface of the tubular portion 20. A female screw portion 23 is formed on the inner peripheral surface of the tubular portion 20.

  The pipe connecting portion 21 is made of a known one-touch joint. A pipe P made of a synthetic resin such as cross-linked polyethylene or polybutene is connected to the pipe connecting portion 21. A pipe member (not shown) such as a faucet is connected to the female screw portion 23 of the tubular portion 20.

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

  As shown in FIGS. 3 and 4, the flange member 3 is attached to the base end side of the tubular portion 20. A female screw portion 30 that is screwed into the male screw portion 22 is formed on the inner peripheral surface of the flange member 3. The flange member 3 is screwed to the base end side of the tubular 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 flat portions 24 formed on the male screw portion 22. A pair of shaped plate portions 41 (second regulation portion) are formed. That is, when the tubular portion 20 is rotated in the circumferential direction with the tubular portion 20 inserted in the insertion hole 40, the flat portion 24 and the plate portion 41 come into contact with each other and rotate together.

  The intermediate ring 4 is formed by pressing a stainless plate or a steel plate. After pressing along the outer shape of the intermediate ring 4, the plate portion 41 is formed by bending the two planar projections formed inside to the outside.

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

  As shown in FIGS. 3 and 4, the tubular portion 20 in which the flange member 3, the intermediate ring 4, and the water blocking 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 sliding ring 6, and the fixed ring 7 are attached in the same order to the tip of the tubular portion 20 protruding from the second surface 102.

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

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

  As shown in FIG. 1, on the inner peripheral surface of the fixed ring 7, a female screw portion 70 that is screwed into the male screw portion 22 of the tubular portion 20 is formed. As shown in FIGS. 1 and 2, a plurality of screw holes 71 (four in this embodiment) are formed through the fixing ring 7 for inserting the screws 8 at equal intervals in the circumferential direction. A plurality of (two in the present embodiment) 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 tubular portion 20, by inserting a tool such as a water tap wrench into the tool hole 72 and rotating the same, the wall 100 is fixed between the fixing ring 7 and the flange member 3. Can be strongly clamped.

  When the tip of the tubular portion 20 protrudes too much from the fixed ring 7 with the fixing ring 7 thus attached, the amount of screwing of the flange member 3 into the tubular portion 20 is adjusted to allow the tubular portion 20 to move. 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 in using a tool such as an impact driver. The screw 8 is a tapping screw with a drill, and the screw 8 can be screwed into the wall body 100 or the like without a prepared hole.

  The screw 8 is inserted into the screw hole 71 of the fixed ring 7, penetrates the slide ring 6 and the water stop ring 10, and is screwed into the wall body 100. The screw 8 penetrates the wall body 100 and the water blocking ring 5, reaches the intermediate ring 4, and further penetrates the intermediate ring 4 to penetrate the flange member 3.

  The screw 8 makes the fixed ring 7 and the wall body 100 relatively unrotatable, and is engaged with the intermediate ring 4 to make the intermediate ring 4 and the wall body 100 relatively unrotatable.

  Note that, as shown in FIG. 2, the screw 8 is screwed into one of the four positions of the screw hole 71 so as not to damage the elbow member 9. That is, when the fixing ring 7 is screwed into the tubular portion 20, the fixing ring 7 is adjusted so that the screw hole 71 is arranged at a position avoiding the joint body 2.

  Since the screw holes 71 are formed at four positions on the circumference at equal intervals, the position adjustment of the screw holes 71 can be performed at 90 ° intervals. Further, if the screw hole 71 is arranged in the vicinity of the flat surface portion 24 with the flat surface portion 24 formed on the tubular portion 20 as a guide, the elbow member 9 is positioned so as not to be damaged.

  Now, as shown in FIGS. 2 to 4, when the water tap 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 the water tap or the like. I try to go 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 together.

  However, the intermediate ring 4 cannot rotate relative to the wall body 100 via the screw 8. In other words, even if the joint body 2 is not locked with a tool or the like, the screws 8 for the fixing ring 7 are used to prevent the joint body 2 from rotating together, and a faucet or the like can be easily screwed in. .. As described above, by using the screw 8 for the fixing ring 7, the structure can be simplified.

  In addition, 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 screwing the screw 8 from the fixed ring 7 to the intermediate ring 4, the worker may screw the screw 8 to the radial outside of the fixed ring 7 because of fear of damaging the elbow member 9. However, even if the screw 8 tilts outward in the radial direction of the fixed ring 7, the screw 8 can be engaged with the intermediate ring 4, and the screwing operation of the screw 8 is facilitated.

<Modification>
The above embodiment can be modified 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 screw portion 22 of the elbow member 9 is deleted, and the male screw portion 22 has a groove 200 (first regulation) having a V-shaped cross section. Part). Further, the plate portion 41 formed on the intermediate ring 4 is deleted, and the protrusion 400 (second regulation portion) having a shape corresponding to the groove 200 is formed on the inner peripheral surface of the intermediate ring 4.

  When a faucet or the like is screwed into the female thread portion 23 of the elbow member 9, if the elbow member 9 tries to rotate with the faucet, the groove 200 hits the protrusion 400 to make it relatively unrotatable. Suppress.

  The shapes of the first restricting portion and the second restricting portion are not limited to those described above, and may be any shapes as long as the joint main bodies abut against each other and suppress relative rotation when the joint main body tries to rotate together.

  ○ In the pipe joint 1, the intermediate ring 4 should be arranged between the second surface 102 and the fixed ring 7.

  ○ The flange member 3 should be integrally formed 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 shapes of the intermediate ring 4 and the fixing ring 7 polygonal.

  ○ The water blocking ring 5 should be arranged only on the first surface 101 side or the second surface 102 side of the wall body 100. Further, the water stop ring 5 may be omitted in an application / environment 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 to connect a joint or the like.

  ○ Examples of other fixing members include tapping screws, nails, and pins.

  ○ Other structures include floors and ceilings.

<Appendix>
The technical idea that can be understood 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 arranged on the first surface side of the structure and communicating with the cylindrical portion. And a pipe connecting portion to which a tubular body is connected, and a flange portion provided on the proximal end side of the tubular portion, and a male screw portion is formed on the outer peripheral surface of the tubular portion, and the tubular portion A female threaded portion is formed on the inner peripheral surface of the joint body, and a joint main body in which a first restricting portion is formed on a part of the male threaded portion is arranged on the second surface side with respect to the structure, and A fixing ring that is screwed into the male screw portion of the tubular portion and sandwiches the structure with the flange portion, and between the flange portion and the first surface of the structure or the first portion of the structure. It is arranged between the two surfaces and the fixing ring, and has an insertion hole corresponding to the tubular portion, and the inner peripheral surface of the insertion hole has a front surface. From the fixed ring and an intermediate ring having a second regulation portion that has a shape corresponding to the first regulation portion and regulates relative rotation with the tubular portion by contacting the first regulation portion. A pin-shaped fixing member that is passed to the structure and that makes the fixing ring and the structure unable to rotate relative to each other is provided, and the fixing member reaches the intermediate ring and reaches the intermediate ring. A pipe joint that is engaged to make the intermediate ring and the structure incapable of relative rotation.

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

  2 ... Joint body, 3 ... Flange member, 4 ... Intermediate ring, 7 ... Fixing ring, 8 ... Screw, 9 ... Elbow member, 20 ... Cylindrical part, 24 ... Flat part, 41 ... Plate part.

Claims (2)

Place the pipe connection part of the pipe joint on the first surface side of the wall body,
Insert the tubular portion of the pipe joint into the through hole provided in the wall body,
To the second surface side of the wall body from the through hole, in a state in which the male screw portion formed on the outer peripheral surface of the tubular portion of the pipe joint is projected,
An intermediate ring whose relative rotation with respect to the male screw portion is suppressed in the male screw portion, and a fixing ring which is screwed into the male screw portion and maintains a state in which the male screw portion projects toward the second surface side of the wall body. Insert and
While inserting a pin-shaped fixing member into the fixing ring, perforating the intermediate ring with the fixing member,
A method for fixing a pipe joint, wherein the fixing member is attached to the wall body while penetrating the fixing ring and the intermediate ring. Place the pipe connection part of the pipe joint on the first surface side of the wall body,
Insert the tubular portion of the pipe joint into the through hole provided in the wall body,
On the first surface side of the wall body, the male screw portion formed on the outer peripheral surface of the tubular portion, an intermediate ring in which relative rotation with the male screw portion is suppressed is inserted,
In a state in which the male screw portion is projected from the through hole to the second surface side of the wall body,
In the male screw portion, insert a fixing ring that is screwed with the male screw portion to maintain the male screw portion protruding to the second surface side of the wall body,
A method for fixing a pipe joint in which a pin-shaped fixing member is inserted into the fixing ring and the wall body, and the intermediate member is perforated by the fixing member.

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