JP2017101822A - Cover for pipe joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel cover for a pipe joint.SOLUTION: A cover 10 covers a pipe joint 21 to which a pipe P1 having a coating material PC is connected. The cover 10 comprises a half-split cylindrical main body 11. A wall part 15 whose internal peripheral edge is formed into a U-shape is formed at an end of the main body. Protrusions protruding toward an internal peripheral side are formed at both base ends of the wall part. The internal peripheral edge of the wall part including the protrusions bites into an external peripheral face of the coating material of the pipe. The wall part is inclined to a center axial line of the main body so that an outer face of the wall part is oriented to a side opposite to a first wall face side in a state that the cover is constructed on the first wall face W1 being a construction object.SELECTED DRAWING: Figure 5

Description

The present invention relates to a cover that covers a pipe joint to which an end of a pipe provided along a wall surface is connected from the outside and is attached to the wall surface.

As a cover for this type of pipe joint, for example, there is a pipe joint housing cover described in Patent Document 1.

Patent No. 5734815

An object of the present invention is to provide a novel cover for a pipe joint.

  In order to achieve the above object, the invention of claim 1 is a cover for covering a pipe joint to which a pipe having a covering material is connected, comprising a main body having a half-cracked cylindrical shape, at the end of the main body. A wall portion whose inner peripheral edge is U-shaped is formed, and both base ends of the wall portion are formed with protruding portions that project toward the inner peripheral side, and the inner portion of the wall portion including the protruding portion is formed. The peripheral edge is bitten into the outer peripheral surface of the covering material of the pipe, and the outer surface of the wall portion faces the opposite side to the wall surface side in a state where the cover is applied to the wall surface to be applied. The wall portion is inclined with respect to the central axis of the main body.

According to the present invention, a novel cover for a pipe joint is provided.

1 is a perspective view of a plurality of pipes provided along a wall surface and a plurality of covers attached to the wall surface and covering the plurality of pipe joints, respectively, according to an embodiment of a cover for a pipe joint. The front view of the cover used for the elbow-shaped pipe joint provided by penetrating the wall in the embodiment. The rear view of the cover. (A) is a front view which shows the mode of the alignment process using the cover, (b) is a front view of the pipe | tube cut | disconnected by using the display part of the cover as a mark of a cutting position. (A) is a front view which shows the state by which the edge part of the pipe was connected to the connection port of the pipe joint, (b) is a front view which shows the state which the cover is attached to the wall surface and has covered the pipe joint. The front view of the cover used for the T-shaped pipe joint provided along the wall in the embodiment. The rear view of the cover. (A) is a front view which shows the mode of the alignment process using the cover, (b) is a front view of the pipe | tube cut | disconnected by using the display part of the cover as a mark of a cutting position. (A) is a front view which shows the state by which the edge part of the pipe was connected to the connection port of the pipe joint, (b) is a front view which shows the state which the cover is attached to the wall surface and has covered the pipe joint. The front view of the cover used for the linear pipe joint provided along the wall in the embodiment. The rear view of the cover. The disassembled perspective view which shows what the pipe | tube was connected to the linear pipe joint provided along the wall in the embodiment, and the said cover mutually spaced apart. The disassembled perspective view which shows what the pipe | tube was connected to the T-shaped pipe joint provided through the wall, and the cover which covers the pipe joint mutually spaced apart. The front view of the cover used for the elbow-shaped pipe joint provided along the wall in the embodiment. The rear view of the cover. The disassembled front view which shows what the pipe | tube was connected to the elbow-shaped pipe joint, and the cover which covers the pipe joint mutually spaced apart. The disassembled perspective view which shows the internal thread, elbow-shaped pipe joint, cover, and single water faucet which were provided in the 1st wall surface in the same embodiment mutually spaced apart. The rear view which shows the state in which the elbow-shaped pipe joint was accommodated in the inside of the cover. The perspective view which shows what the pipe | tube was connected to the elbow-shaped pipe joint provided along the exit corner part in the embodiment, and the cover which covers the pipe joint. The perspective view which shows the mode of the alignment process using the cover. The perspective view which shows the back side of the cover. The perspective view which shows what the pipe | tube was connected to the elbow-shaped pipe joint provided along the entrance corner in the embodiment, and the cover which covers the pipe joint. The perspective view which shows the mode of the alignment process using the cover. The perspective view which shows the back side of the cover. (A) is the perspective view seen from the front side about the saddle in the embodiment, (b) is the perspective view seen from the back side. The front view for demonstrating the effect | action of a cover and a saddle. The rear view of the pipe | tube of the embodiment. The rear view of the linear cover in a modification.

Hereinafter, an embodiment will be described with reference to FIGS. As shown in FIG. 1, the outer wall surface to which the renovation pipe is to be constructed includes a first wall surface W1, a second wall surface W2, and a third wall surface W3. The first wall surface W1 and the second wall surface W2 are adjacent to each other at right angles, and the boundary between these wall surfaces W1, W2 is the protruding corner portion A1. Further, the second wall surface W2 and the third wall surface W3 are orthogonally adjacent to each other, and the boundary between the wall surfaces W2, W3 is the corner A2.

The piping system of the present embodiment includes the following pipes P1 to P7, pipe joints 21, 41, 61, 91, covers 10, 30, 50, 70, 80, 110, 120 and a saddle 130. The cover 10, 30, 50, 70, 80, 110, 120 and the saddle 130 are formed of a hard resin material that is weather-resistant and UV-resistant.

<Pipes P1 to P7> Each of the pipes P1 to P7 described below is composed of a pipe body PB made of a resin material and a covering material PC for heat insulation placed on the outer peripheral surface of the pipe body PB. The covering material PC is formed of, for example, an elastomer or a foam material, and is covered on the outer peripheral surface of the pipe body PB by fusing the circumferential ends of the covering material PC.

As shown in FIG. 27, the outer peripheral surface of the covering material PC has a mark (hereinafter referred to as a fusing mark F) obtained by fusing the ends in the circumferential direction of the covering material PC. The fusion mark F extends along the axial direction of the pipes P1 to P7. In the present embodiment, a printing portion M on which characters “wall side” are printed is provided in a portion including the fusion mark F on the outer peripheral surface of the covering material PC.

The pipes P1 to P7 are constructed so that the printing portion M faces the wall surfaces W1 to W3. Thereby, it becomes difficult to visually recognize the fusion mark F of the pipes P1 to P7, and the aesthetic appearance of the entire piping system is improved.

Further, the portion of the fusion mark F has lower ultraviolet resistance than other portions. In this regard, by making the fusion mark F face the wall surfaces W1 to W3 as described above, the portion of the fusion mark F becomes difficult to be exposed to ultraviolet rays, and the fusion marks F are caused by being exposed to ultraviolet rays. It is possible to prevent the covering material PC from deteriorating from this part.

<The pipe joint 21 and the cover 10 which connect the pipes P0 and P1> As shown in FIG.4 (b), the edge part of the pipe P0 is located inside the through-hole H opened to the 1st wall surface W1. As shown in FIG. 5A, one end (not shown) of the elbow-shaped pipe joint 21 is connected to the end of the pipe P0. Moreover, the upper end part of the pipe P1 provided along the up-down direction is connected to the other connection port 22 in the pipe joint 21.

As shown in FIGS. 1, 5A, and 5B, a cover 10 that covers the entire pipe joint 21 and the upper end of the pipe P1 from the outside is attached to the first wall surface W1.

As shown in FIGS. 2 and 3, the cover 10 includes a half-cracked cylindrical main body 11 whose one end (the upper end in the figure) is closed in a hemispherical shell shape, and from the edge of the main body 11 toward the outer peripheral side. And a flange 12 extended in this manner. A wall portion 15 having an inverted U-shaped inner peripheral edge is formed at the other end of the main body 11 (lower end in the figure). In addition, at both base ends of the wall portion 15, projections 16 that protrude toward the inner peripheral side are formed.

In a state where the cover 10 is applied to the first wall surface W1, the wall portion 15 faces the center axis of the main body 11 (hereinafter referred to as the center axis C1) so that the outer surface of the wall portion 15 faces away from the first wall surface W1. ).

As shown in FIG. 5B, the inner peripheral edge of the wall 15 including the protrusions 16 bites into the outer peripheral surface of the covering material PC of the pipe P1, so that the inner peripheral edge of the wall 15 and the outer peripheral surface of the covering material PC There is almost no gap between them. Thereby, it can suppress that an ultraviolet-ray enters into the cover 10 from the clearance gap between the cover 10 and the pipe P1, and can suppress degradation, such as the upper end part of the pipe P1 by an ultraviolet-ray.

The flange 12 is formed over the entire edge portion excluding the wall portion 15 of the main body 11, and has a U shape (in the figure, an inverted U shape) when viewed from the front. A plurality of non-through guide holes 13 are formed on the surface of the flange 12 at intervals. In actual construction, the screws B are not inserted into all of the plurality of guide holes 13. For this reason, the aesthetic appearance of the cover 10 is improved by making the guide hole 13 non-penetrating as described above.

As shown in FIG. 3, two pairs of regulating ribs 17 facing each other across the central axis C1 of the main body 11 are spaced apart from each other in the axial direction on the inner peripheral surface near the other end (lower end in the figure) of the main body 11. Is formed. When these restriction ribs 17 bite into the outer peripheral surface of the covering material PC of the pipe P1 (see FIG. 4A), the displacement of the covering material PC with respect to the cover 10 due to heat shrinkage or the like is restricted.

A portion 12b surrounded by the peripheral edge 12a on the back surface of the flange 12 is stealed. A rib 12c extending in a U-shape along the shape of the flange 12 and a plurality of ribs 12d extending perpendicularly to the rib 12c and extending to the peripheral edge 12a are formed in the meat-stolen portion 12b. The flange 12 is reinforced by these ribs 12c and 12d. As a result, it is possible to prevent the flange 12 from being damaged when the screw B is hit against a portion of the flange 12 other than the guide hole 13 or when a large load is applied to the flange 12.

An annular rib 13 a that surrounds the guide hole 13 is formed on the rear surface of the flange 12. In addition to reinforcing the flange 12 by the annular rib 13a, the screw B and the drill are guided when a pilot hole connected to the guide hole 13 is formed in the flange 12. The ribs 12c and 12d are connected to the annular rib 13a.

Alignment ridges 14a and 14b extending along the central axis C1 are formed at the center position in the width direction (left and right direction in the figure) of the cover 10 on the rear surface of the flange 12 and the main body 11, respectively. The protrusion 14a of the flange 12 is one of the plurality of ribs 12d and extends to one end of the cover 10 (the upper end in the figure). The protrusion 14 b of the main body 11 extends to the other end of the cover 10 (the lower end in the figure), that is, to the inner surface of the wall portion 15.

On the back surface of the flange 12 located on both sides of the main body 11, alignment ridges 14c and 14d extending perpendicularly to the central axis C1 are formed, respectively. These protrusions 14c and 14d are two of the plurality of ribs 12d, and both are located on the same straight line. Display ridges 18 and 19 extending perpendicularly to the central axis C1 are formed on the back surfaces of the main body 11 and the flange 12, respectively. The display ridges 19 of the flange 12 are two of the plurality of ribs 12d and are both positioned on the same straight line, and are spaced from each other in the axial direction of the alignment ridges 14c and 14d and the main body 11. Are provided in parallel.

Further, on the back surface of the flange 12, a display protrusion 20 having a shape of “← cut mark” (shown after being rotated 90 degrees in the same figure) pointing to the display protrusion 19 is formed on the display protrusion 19 and the main body 11. Are formed side by side in the axial direction. These display protrusions 18 and 19 and the display protrusion 20 function as a display unit according to the present invention. Note that the ridges 14a, 14c, 14d, and 19 on the back surface of the flange 12 are all located on the same plane and are in contact with the first wall surface W1.

Next, the construction procedure of the pipe P1, the pipe joint 21, and the cover 10 will be described. As shown in FIG. 4A and FIG. 4B, first, reference lines L1 and L2 respectively extending along the top and bottom and the left and right around the end of the pipe P0 are displayed on the first wall surface W1 ( Inking process).

Subsequently, as shown in FIG. 4A, with the cover 10 turned upside down, i.e., with the back surface of the cover 10 facing outward, the upper end of the pipe P <b> 1 is positioned outside the main body 11 so as to be attached to the main body 11. The protrusions 14a, 14b, 14c, and 14d for aligning the cover 10 are aligned with reference lines L1 and L2 that extend vertically and horizontally, respectively. Thus, the cover 30 is aligned with the first wall surface W1 (alignment process). At this time, a mark (not shown) is marked with a pen or the like at a position corresponding to the display protrusions 18 and 19 on the outer peripheral surface of the pipe body PB of the pipe P1.

Subsequently, as shown in FIG. 4B, the pipe body PB of the pipe P <b> 1 is cut along the mark with the cover 10 removed. That is, the pipe P5 is cut using the display protrusions 18 and 19 of the cover 10 as marks of the cutting position (cutting process).

Then, as shown to Fig.5 (a), the upper end part of the pipe main body PB of the pipe P1 is connected to the connection port 22 of the pipe joint 21 (connection process). As a result, the upper end portion of the covering material PC is in close contact with the pipe joint 21.

Finally, as shown in FIG. 5B, the pipe joint 21 is covered from the outside by the main body 11, and the screw B is hit against the guide hole 13 and the first wall surface W <b> 1 while guiding the tip of the screw B by the guide hole 13. Thus, the flange 12 is attached to the first wall surface W1 (attachment process).

<Pipe Joint 41 and Cover 30 Connecting Pipes P1, P2, and P5> As shown in FIG. 9A, the pipe P1 has a reverse T-shape at the lower end of the pipe P1, and is a so-called cheese joint. The upper connection port 42a of 41 is connected. Further, the right end portion of the pipe P5 and the left end portion of the pipe P2 provided along the left-right direction are connected to the left and right connection ports 42b, 42c of the pipe joint 41, respectively.

As shown in FIGS. 1, 9A, and 9B, the first wall surface W1 includes the entire pipe joint 41, the lower end portion of the pipe P1, the right end portion of the pipe P5, and the left end portion of the pipe P2. A cover 30 is attached to cover from the outside.

As shown in FIGS. 6 and 7, the cover 30 includes a main body 31 having a half-cracked cylindrical straight part 31 a and a half-cracked cylindrical branch part 31 b extending from a center part in the axial direction of the straight part 31 a. And a flange 32 extending from the edge of the main body 31 toward the outer peripheral side, and has a symmetrical shape in FIG. Wall portions 35 having inverted U-shaped inner peripheral edges are formed at three ends of the main body 31, respectively. In addition, at both base ends of each wall portion 35, a protruding portion 36 that protrudes toward the inner peripheral side is formed.

In a state where the cover 30 is applied to the first wall surface W1, each wall portion 35 faces the central axis (hereinafter referred to as the center) of the main body 31 so that the outer surface of each wall portion 35 faces the opposite side to the first wall surface W1 side. It is inclined with respect to the axis C2).

The flange 32 is formed over the entire edge portion excluding the wall portion 35 of the main body 31. A plurality of non-through guide holes 33 are formed on the surface of the flange 32 at intervals.

As shown in FIG. 7, two pairs of regulating ribs 37 facing each other across the central axis C2 of the straight portion 31a are spaced apart from each other in the axial direction of the straight portion 31a on the inner peripheral surface near both ends of the straight portion 31a. Formed. On the inner peripheral surface near the tip of the branch part 31b, two pairs of regulating ribs 37 facing each other across the central axis of the branch part 31b (hereinafter, center axis C3) are spaced from each other in the axial direction of the branch part 31b. Formed.

A portion 32b surrounded by the peripheral edge portion 32a on the back surface of the flange 32 is stealed. A plurality of ribs 32c are formed in the meat stealed portion 32b. Further, an annular rib 33 a surrounding the guide hole 33 is formed on the back surface of the flange 32.

Alignment ridges 34a and 34d extending along the central axis C3 are formed on the back surface of the flange 32 located on the opposite side of the branch portion 31b with the branch portion 31b and the straight portion 31a interposed therebetween. These protrusions 34a and 34d are located in the center of the straight portion 31a in the axial direction. Further, the protrusion 34a of the branch part 31b extends to the tip of the branch part 31b (the upper end in the figure), that is, the inner surface of the wall part 35.

Alignment protrusions 34b and 34c extending along the central axis C2 are formed on the back surfaces of both ends of the straight portion 31a. A display protrusion 38a extending orthogonally to the central axis C3 is formed at a position closer to the branch part 31b than the central axis C2 on the back surface of the straight portion 31a.

On the back surface of the straight portion 31a, a display protrusion 40a having a shape of “↑” pointing to the display protrusion 38a and a shape of “cutting mark” is formed close to the display protrusion 38a. Display ridges 38b, 39b, 38c, and 39c extending perpendicularly to the central axis C2 are formed on the back surfaces of the straight portion 31a and the flange 32, respectively. Of these, the display protrusions 39b and 39c are two of the plurality of ribs 32c.

On the back surface of the flange 32 located on the opposite side of the branch portion 31b across the straight portion 31a, a display protrusion 40b having a shape of “cutting mark →” indicating the display protrusions 38b and 39b is formed on the display protrusion 39b. It is formed side by side. Further, on the back surface of the flange 32, a display protrusion 40c having a shape of “← cut mark” indicating the display protrusions 38c and 39c is formed side by side with the display protrusion 39c.

These display protrusions 38a to 38c, 39a to 39c, and display protrusions 40a to 40c function as the display unit according to the present invention. Next, the construction procedure of the pipes P1, P2, P5, the pipe joint 41, and the cover 30 will be described.

As shown in FIGS. 8A and 8B, first, a reference line L3 that is orthogonal to the reference line L1 and extends in the left-right direction is displayed on the first wall surface W1 (inking step).

Subsequently, as shown in FIG. 8A, with the cover 30 turned upside down, the end of the pipe P5 is positioned outside the main body 31 along the straight portion 31a, and the cover 30 is positioned for alignment. The strips 34a, 34d, 34b, and 34c are aligned with reference lines L1 and L2 that extend vertically and horizontally, respectively. Thus, the cover 30 is aligned with the first wall surface W1 (alignment process). At this time, a mark (not shown) is marked with a pen or the like at a position corresponding to the display protrusions 38b and 39b on the outer peripheral surface of the pipe body PB of the pipe P5. Although illustration is omitted here, the positions corresponding to the display protrusions 38c and 39c are similarly marked for the pipe P2.

Subsequently, as shown in FIG. 8B, with the cover 30 removed, the pipe body PB of the pipe P5 is cut along the mark. That is, the pipe P5 is cut using the display protrusions 38b and 39b of the cover 30 as marks for the cutting position (cutting process). Similarly, the pipe body PB of the pipe P2 is cut along the above mark.

Subsequently, as shown in FIG. 9A, the right end portion of the pipe body PB of the pipe P5 and the left end portion of the pipe body PB of the pipe P2 are respectively connected to the connection ports 42b and 42c of the pipe joint 41 (connection process). . In addition, the lower end part of the pipe P1 is connected to the connection port 42a of the pipe joint 41 in advance.

Finally, as shown in FIG. 9B, the flange 32 of the cover 30 is attached to the first wall surface W1 with screws B (attachment process). <The pipe joint 61 and the cover 50 which connect the pipes P2 and P3> As shown in FIG. 12, the right end portion of the pipe P2 has a straight shape, and is connected to the connection port 62 on the left side of the pipe joint 61 called a so-called socket. It is connected. In addition, a left end portion of a pipe P3 provided along the left-right direction is connected to the connection port 62 on the right side of the pipe joint 61.

As shown in FIGS. 1 and 12, a cover 50 that covers the entire pipe joint 61 and the right end portion of the pipe P2 and the left end portion of the pipe P3 from the outside is attached to the first wall surface W1. As shown in FIGS. 10 and 11, the cover 50 includes a half-cracked cylindrical main body 51 and flanges 52 extending from both edges of the main body 51 toward the outer peripheral side, which will be described later. Except for the display protrusions 60a, 60b, 60c, and 60d, it has a symmetrical shape in FIG. At both ends of the main body 51, wall portions 55 having inverted U-shaped inner peripheral edges are formed. In addition, at both base ends of the wall portion 55, projections 56 that protrude toward the inner peripheral side are formed.

In a state where the cover 50 is applied to the first wall surface W1, each wall portion 55 faces the central axis (hereinafter referred to as the center) of the main body 11 so that the outer surface of each wall portion 55 faces the opposite side to the first wall surface W1 side. It is inclined with respect to the axis C4).

The flange 52 is formed over the entire axial direction of the main body 51 (the left-right direction in the figure). A plurality of non-through guide holes 53 are formed on the surface of the flange 52 at intervals.

As shown in FIG. 11, two pairs of regulating ribs 57 facing each other across the central axis C <b> 4 of the main body 51 are formed on the inner peripheral surfaces of both ends of the main body 51, respectively, spaced apart from each other in the axial direction. Yes.

A portion 52b surrounded by the peripheral edge 52a on the back surface of the flange 52 is stealed. A plurality of ribs 52c are formed in the stealed portion 52b. An annular rib 53 a that surrounds the guide hole 53 is formed on the back surface of the flange 52.

At the center position in the axial direction on the back surfaces of the flanges 52 on both sides, alignment protrusions 54a extending perpendicularly to the central axis C4 are formed. Alignment protrusions 54b extending along the central axis C4 are formed on the back surfaces of both ends of the main body 51, respectively.

A pair of display protrusions 58a, 59a, 58b, 59b extending perpendicularly to the central axis C4 are axially attached to the lower flange 52 of the figure and the back surface of the main body 51 adjacent to the flange 52. Each is formed at intervals. Of these, the display protrusions 59a and 59b are two of the plurality of ribs 52c.

On the back surface of the flange 52, a display protrusion 60a having a shape of “← cutting mark” indicating the display protrusions 58a and 59a and a display protrusion having a shape of “socket →” indicating the display protrusions 58b and 59b are provided. 60b is formed by sandwiching the left and right display protrusions 59a, 59b from both sides. In the figure, both “← cutting mark” and “socket →” are shown rotated by 180 degrees.

A pair of display protrusions 58c, 59c, 58d, 59d extending perpendicular to the central axis C4 are spaced apart from each other in the axial direction on the back surface of the upper flange 52 and the portion of the main body 51 adjacent to the flange 52 in FIG. Each is formed. Of these, the display protrusions 59c and 59d are two of the plurality of ribs 52c.

On the back surface of the flange 52, a display protrusion 60c having the shape of “Cheese →” indicating the display protrusions 58c and 59c on the left side of the figure and a display protrusion 58d and 59d on the right side of the figure “←” A display protrusion 60d having the shape of a “cutting mark” is formed so as to sandwich the left and right display protrusions 59c and 59d from both sides.

These display protrusions 58a to 58d, 59a to 59d, and display protrusions 60a to 60d function as a display unit according to the present invention. By the way, the cover 50 includes a linear pipe joint 61 (see FIG. 12) provided along the first wall surface W1 and a T-shaped pipe joint 41 (see FIG. 13) provided through the first wall surface W1. And both. However, in these two types of pipe joints 61 and 41, the connection charges of the pipe P2 (P3) to the pipe joints 61 and 41 are different from each other.

Therefore, as shown in FIG. 11, in the cover 50 of the present embodiment, the upper display protrusions 58 c, 59 c, 58 d, 59 d corresponding to the pipe joint 41 correspond to the pipe joint 61. The display protrusions 58a, 59a, 58b, and 59b on the side are formed outside the main body 51 in the axial direction.

<Pipe Joint 21 and Cover 70 Connecting Pipes P3 and P4> As shown in FIG. 16, the right end of the pipe P3 is connected to the connection port 22 on the left side of the elbow-shaped pipe joint 21. Moreover, the lower end part of the pipe P4 provided along the up-down direction is connected to the connection port 22 on the upper side of the pipe joint 21.

As shown in FIGS. 1 and 16, a cover 70 is attached to the first wall surface W1 to cover the entire pipe joint 21 and the right end portion of the pipe P3 and the lower end portion of the pipe P4 from the outside. As shown in FIGS. 14 to 16, the cover 70 has a half-cracked cylindrical shape, an L-shaped main body 71, and a flange 72 that extends from both edges of the main body 71 toward the outer peripheral side. And. At both ends of the main body 71, wall portions 75 each having an inverted U-shaped inner peripheral edge are formed. In addition, at both base ends of the wall portion 75, projections 76 that protrude toward the inner peripheral side are formed.

In a state where the cover 70 is applied to the first wall surface W1, each wall portion 75 faces a corresponding central axis (hereinafter referred to as the main axis 71) so that the outer surface of each wall portion 75 faces the side opposite to the first wall surface W1 side. Are inclined with respect to the central axes C5, C6).

The flange 72 is formed over the entire axial direction of the main body 71. A plurality of non-penetrating guide holes 73 are formed on the surface of the flange 72 at intervals. As shown in FIG. 15, two pairs of regulating ribs 77 facing each other across the central axes C <b> 5 and C <b> 6 of the main body 71 are spaced apart from each other in the axial direction of the main body 71. Each is formed.

A portion 72b surrounded by the peripheral edge 72a on the back surface of the flange 72 is stealed. A plurality of ribs 72c are formed in the meat stealed portion 72b. An annular rib 73 a that surrounds the guide hole 73 is formed on the rear surface of the flange 72.

Alignment protrusions 74a and 74b extending along the central axes C5 and C6 are formed on the back surfaces of both ends of the main body 71, respectively. A pair of display protrusions 78a and 79a extending perpendicular to the central axis C5 are formed on the lower surface of the flange 72 and the back surface of the main body 71 adjacent to the flange 72, respectively. Among these, the display protrusion 79a is one of the plurality of ribs 72c.

On the back surface of the flange 72, a display protrusion 80a having a shape of “← cut mark” indicating the display protrusions 78a and 79a is formed side by side with the display protrusion 79a. A pair of display protrusions 78b and 79b extending perpendicularly to the central axis C6 are formed on the left side of the flange 72 and the back surface of the body 71 adjacent to the flange 72. Of these, the display protrusion 79b is one of the plurality of ribs 72c.

On the back surface of the flange 72, a display protrusion 80b having a shape of “cutting mark →” (shown rotated by 90 degrees in the same figure) indicating the display protrusions 78b and 79b is formed with the display protrusion 79b. It is formed side by side.

These display protrusions 78a, 79a, 78b, 79b and the display protrusions 80a, 80b function as a display unit according to the present invention. <The pipe joint 91 which connects the pipe P4 and the single water tap 100, and the cover 80> As shown in FIG. 17, above the pipe P4 in the 1st wall surface W1, the existing installation used by piping before renovation was carried out. A through hole 94 is formed. In addition, a female screw 95 for attaching a faucet used in the pipe before reforming is fixed to the through hole 94. A male thread portion 93 of an elbow-shaped pipe joint 91 is screwed into the female thread 95. The male thread portion 93 functions as a water stop plug that is attached to the female screw 95 that forms the flow path end of the existing pipe and stops water. That is, in the present embodiment, the female screw 95 is reused to attach the pipe joint 91 to the first wall surface W1.

The upper end portion of the pipe P4 is connected to the lower connection port 92a of the pipe joint 91. The male threaded portion 102 of the single water faucet 100 is screwed into the front connection port 92b of the pipe joint 91.

As shown in FIG.1 and FIG.17, the cover 80 which covers the whole pipe joint 91 and the upper end part of the said pipe P4 from the outer side is attached to the 1st wall surface W1 with the screw | thread B. As shown in FIGS. 17 and 18, the cover 80 has a box-shaped part 81 a having a substantially square shape in front view covering the pipe joint 91, and a half-cracked cylindrical shape connected to the lower side wall of the box-shaped part 81 a. A main body 81 having a cylindrical portion 81 b and a flange 82 extending from the edge of the main body 81 toward the outer peripheral side are provided.

As shown in FIG. 17, an insertion hole 84 into which the male screw portion 102 of the single water faucet 100 is inserted is formed in the front wall of the box-shaped portion 81a. In addition, the flange 101 of the single water tap 100 is contact | abutted to the peripheral part of the insertion hole 84 in the front of the box-shaped part 81a.

As shown in FIGS. 17 and 18, recesses 88 are formed in the four corners of the side wall of the box-shaped portion 81a over the entire depth direction, and the edges of the recesses 88 (contact with the first wall surface W1). The flange 82 is formed at a portion to be formed. Of these, the flange 82 formed at the edge of the lower recess 88 in the figure extends to the tip of the cylindrical part 81b (the lower end in the figure) along the axial direction of the cylindrical part 81b. A plurality of non-through guide holes 83 are formed on the surface of the flange 82 (see FIG. 17).

As shown in FIG. 18, a wall portion 85 having an inverted U-shaped inner peripheral edge is formed at the tip of the cylindrical portion 81b. In addition, at both base ends of the wall portion 85, projections 86 that protrude toward the inner peripheral side are formed.

On the inner peripheral surface of the cylindrical portion 81b, two pairs of regulating ribs 87 that are opposed to each other across the axis of the cylindrical portion 81b are formed at intervals in the axial direction. A pair of regulating ribs 89 facing each other are provided on the inner surface of the box-shaped portion 81a. The pair of restricting ribs 89 respectively have restricting portions 89a that are parallel to the left and right side walls of the box-shaped portion 81a.

As shown in FIG. 17, when the cover 80, the pipe joint 91, and the single water faucet 100 are constructed, first, the pipe joint 91 is attached to the first wall surface W1 by screwing the male thread portion 93 into the female thread 95.

Subsequently, the cover 80 is attached to the first wall surface W1 with the screw B. In this state, if the male thread portion 102 of the single water faucet 100 is screwed into the connection port 92b of the pipe joint 91 through the insertion hole 84, the pipe joint 91 may rotate together. In this regard, according to the cover 80, the outer periphery of the cylindrical portion 91a of the pipe joint 91 abuts against the restriction portions 89a of the pair of restriction ribs 89, whereby the joint rotation of the pipe joint 91 is restricted.

<The pipe joint 21 and the cover 110 which connect the pipes P5 and P6> As shown in FIG. 19, the left end part of the pipe P5 is connected to the connection port 22 on the right side of the elbow-shaped pipe joint 21 provided in the protruding corner part A1. Has been. The right end of a pipe P6 provided along the left-right direction of the second wall surface W2 is connected to the left connection port 22 of the pipe joint 21.

As shown in FIGS. 19 and 20, a cover 110 is attached to the first wall surface W1 and the second wall surface W2 to cover the entire pipe joint 21, and the left end portion of the pipe P5 and the right end portion of the pipe P6 from the outside. Yes.

As shown in FIGS. 19 to 21, the cover 110 has a half cracked cylindrical shape, and extends toward the outer peripheral side from the main body 111 bent along the protruding corner A <b> 1 and both edges of the main body 111. And has a vertically symmetric and left-right symmetric shape.

As shown in FIG. 21, wall portions 115 each having an inverted U-shaped inner peripheral edge are formed at both ends of the main body 111. Further, at both base ends of the wall portion 115, projections 116 that protrude toward the inner peripheral side are formed.

In such a state that the cover 110 is applied to the first wall surface W1 and the second wall surface W2, the outer surface of each wall portion 115 faces the corresponding first wall surface W1 side or the second wall portion W2 side, Each wall 115 is inclined with respect to a corresponding central axis (hereinafter referred to as central axes C7 and C8) of the main body 111.

As shown in FIGS. 19 to 21, the flange 112 extends to the end along the axial direction of the main body 111. However, the flange 112 is not provided at the corner of the main body 111. As shown in FIGS. 19 and 20, a non-penetrating guide hole 113 is formed on the surface of each flange 112.

As shown in FIG. 21, two pairs of regulating ribs 117 facing each other across the central axes C7 and C8 of the main body 111 are formed on the inner peripheral surfaces of both ends of the main body 111 with an interval in the axial direction. Has been.

A portion 112b surrounded by the peripheral edge 112a on the back surface of the flange 112 is stealed. Ribs 112c are formed in the meat-stolen portion 112b. Further, an annular rib 113 a surrounding the guide hole 113 is formed on the back surface of the flange 112.

As shown in FIG. 20, on the surface of the main body 111, a pair of display step portions 118 extending perpendicularly to the central axes C7 and C8 are formed. These display step portions 118 are stepped up from the corners of the main body 111 toward both ends. That is, a portion surrounded by the pair of display step portions 118 is a recess.

Next, the construction procedure of the pipe P5, the pipe joint 21, and the cover 110 will be described. As shown in FIG. 20, with the surface of the cover 110 facing outward, the entire flange 112 of the cover 110 contacts both the first wall surface W1 and the second wall surface W2 above (or below) the pipe P5. By bringing them into contact, the cover 110 is aligned with the wall surfaces W1 and W2 (alignment process). At this time, a mark (not shown) is marked at a position corresponding to the display step 118 on the outer peripheral surface of the pipe body PB of the pipe P5.

Subsequently, the pipe body PB of the pipe P5 is cut along the above mark. That is, the pipe P5 is cut using the display step 118 of the cover 110 as a mark for the cutting position (cutting process). Subsequently, the left end portion of the pipe body PB of the pipe P5 is connected to the connection port 22 of the pipe joint 21 (connection process). Thereby, the left end portion of the covering material PC is in close contact with the pipe joint 21. The right end of the pipe P6 is connected to the connection port 22 of the pipe joint 21.

Finally, as shown in FIG. 19, the flange 112 of the cover 110 is attached to the first wall surface W1 and the second wall surface W2 by screws B (not shown) (attachment process). <Pipe Joint 21 and Cover 120 Connecting Pipes P6 and P7> As shown in FIG. 22, the left end of the pipe P6 is connected to the right connection port 22 of the elbow-shaped pipe joint 21 provided at the corner A2. Has been. The right end of a pipe P7 provided along the left-right direction of the third wall surface W3 is connected to the left connection port 22 of the pipe joint 21.

As shown in FIGS. 22 and 23, a cover 120 is attached to the second wall surface W2 and the third wall surface W3 to cover the entire pipe joint 21 and the left end portion of the pipe P6 and the right end portion of the pipe P7 from the outside. Yes.

As shown in FIGS. 22 to 24, the cover 120 has a half-cracked cylindrical shape, and is extended toward the outer peripheral side from the main body 121 bent along the corner A <b> 2 and both edges of the main body 121. Flange 122 is provided.

As shown in FIG. 24, wall portions 125 each having an inverted U-shaped inner periphery are formed at both ends of the main body 121. In addition, at both base ends of the wall portion 125, projections 126 that protrude toward the inner peripheral side are formed. The corner portion 124 of the main body 121 is thinner than other portions. In the present embodiment, the entrance corner A2 having a right angle is illustrated, but the cover 120 may have to be attached to the entrance corner that is not a right angle. In this regard, according to the cover 120, the corner portion 124 is thin, so that the operator can easily perform processing such as cutting the corner portion 124.

In such a state that the cover 120 is applied to the second wall surface W2 and the third wall surface W3, the outer surface of each wall portion 125 faces the corresponding second wall surface W2 side or the opposite side to the third wall surface W3 side. The wall 125 is inclined with respect to the corresponding central axis of the main body 121 (hereinafter, the central axes C9 and C10).

As shown in FIGS. 22 to 24, the flange 122 extends to the end along the axial direction of the main body 121. However, the flange 122 is not provided at the corner portion 124 of the main body 121. As shown in FIGS. 22 and 23, a non-penetrating guide hole 123 is formed on the surface of each flange 122.

As shown in FIG. 24, two pairs of regulating ribs 127 that are opposed to each other across the central axes C9 and C10 of the main body 121 are formed on the inner peripheral surfaces of both ends of the main body 121 at intervals in the axial direction. Has been.

A portion 122b surrounded by the peripheral edge 122a on the back surface of the flange 122 is stealed. A rib 122c is formed on the meat-stolen portion 122b. An annular rib 123 a surrounding the guide hole 123 is formed on the back surface of the flange 122.

As shown in FIG. 23, an inclined portion 128 is provided at the edge of each flange 122 so as to be closer to the edge of the main body 121 as it is closer to the corner 124 of the main body 121. The base ends 129 of these inclined portions 128 function as display portions.

Next, the construction procedure of the pipe P6, the pipe joint 21, and the cover 120 will be described. As shown in FIG. 23, with the surface of the cover 120 facing outward, the entire flange 122 of the cover 120 is applied to both the second wall surface W2 and the third wall surface W3 above (or below) the pipe P6. By contacting, the cover 120 is aligned with the wall surfaces W2, W3 (alignment process). At this time, a mark (not shown) is marked with a pen or the like at a position corresponding to the base end 129 of the inclined portion 128 on the outer peripheral surface of the pipe body PB of the pipe P6.

Subsequently, the pipe body PB of the pipe P6 is cut along the above mark. That is, the pipe P6 is cut using the base end 129 of the inclined portion 128 as a mark for the cutting position (cutting process). Subsequently, the left end portion of the pipe body PB of the pipe P6 is connected to the connection port 22 of the pipe joint 21 (connection process). Thereby, the left end portion of the covering material PC is in close contact with the pipe joint 21. The right end of the pipe P7 is connected to the connection port 22 of the pipe joint 21.

Finally, as shown in FIG. 22, the flange 122 of the cover 120 is attached to the second wall surface W2 and the third wall surface W3 by screws B (not shown) (attachment process). <Saddle 130> As shown in FIG. 1, saddles 130 for holding intermediate portions of the pipes P5 to P7 are attached to the wall surfaces W1 to W3. For this reason, portions other than the portions covered by the covers 10, 30, 50, 70, 80, 110, 120 and the saddle 130 in the pipes P1 to P7 are exposed.

As shown in FIGS. 25A and 25B, the saddle 130 includes a semi-cylindrical holding portion 131 and a pair of base portions 132 extending from both edges of the holding portion 131 toward the outer peripheral side. And. A mounting hole 133 is formed through the base portion 132.

As shown in FIG. 25A, the surface of the saddle 130 is a smooth surface. For this reason, dust, dirt, and the like are hardly collected on the surface of the saddle 130. As shown in FIG. 25 (b), on the back surface of the base portion 132, a thinned portion 134 is formed in which the portion around the mounting hole 133 is thinner than the edge portion of the base portion 132. On the back surface of the holding portion 131, a regulation rib 135 extending along the circumferential direction is projected. In a state where the pipes P5 to P7 are held by the holding portion 131, the regulation rib 135 on the back surface of the holding portion 131 bites into the covering material PC, and the pipes P5 to P7 are stably held.

As shown in FIGS. 1 and 26, in the present embodiment, the width of the saddle 130, that is, the length in the direction orthogonal to the axial direction of the holding portion 131 is set to be the same as the width of the covers 30 and 50. . Here, the width of the cover 30 is a width including the straight portion 31a and the flanges 32 on both sides thereof. The width of the cover 50 is a width including the main body 51 and the flanges 52 on both sides thereof. The width including the branch portion 31 b of the cover 30 and the flanges 32 on both sides thereof is also set to be the same as the width of the saddle 130.

For this reason, as shown in FIG. 26, when the saddle 130 is attached between the two covers 30 attached along the common reference line (not shown) and the cover 50, the flange 32 of the cover 30. The mounting position of the saddle 130 can be determined by applying a straight ruler Z to the edge of the saddle and moving the saddle 130 in parallel along the straight ruler Z.

In the present embodiment, the widths of the covers 70, 80, 110, and 120 other than the covers 30 and 50 are set in the same manner as the covers 30 and 50. The width of the cover 80 is a width including the cylindrical portion 81b and the flanges 82 on both sides thereof.

According to the pipe joint cover, the piping system, and the piping construction method according to the present embodiment described above, the following effects can be obtained. (1) On the back surface of the cover 10, display protrusions 18 and 19 and a display protrusion 20 functioning as display portions indicating end positions of the pipe P1 when the pipe P1 is connected to the pipe joint 21 are provided. ing.

According to such a configuration, with the cover 10 turned upside down, the pipe P1 is positioned outside the cover 10 so as to be along the cover 10, and the cover 10 is aligned with the first wall surface W1. , 19 and the display protrusion 20 as a mark of the cutting position, the pipe P1 can be cut to a length including the connection allowance with the pipe joint 21. Therefore, construction can be performed accurately and easily. Moreover, the display protrusions 18 and 19 and the display protrusion 20 are provided on the back surface of the cover 10, and the display portion is not provided on the surface of the cover 10. For this reason, the external appearance of the cover 10 is not impaired, and design restrictions are not imposed. Further, the same effects as those of the cover 10 can be obtained with respect to the covers 30, 50, and 70.

(2) On the back surface of the cover 50, a plurality of display protrusions 58a, 59a (58b, 59b), 58c, 59c (58c, 59c) indicating the positions of the ends of the pipes P2, P3 corresponding to the plurality of types of pipe joints 61, 41, respectively. 58d, 59d).

There are a plurality of types of pipe joints 61 and 41 that can be covered by the same cover 50. However, the connection cost of the pipes P2 and P3 to the pipe joints 61 and 41 differs depending on the type of the pipe joints 61 and 41, and the end positions of the pipes P2 and P3 when the pipes P2 and P3 are connected to the pipe joints 61 and 41 Is different.

In this respect, according to the above configuration, the pipe P2 and P3 have a length including the connection allowance with the various pipe joints 61 and 41 while using the common cover 50 for the plurality of kinds of pipe joints 61 and 41. Can be formed.

(3) The display protrusion 18 is provided on the back surface of the main body 11 of the cover 10, and the display protrusion 19 and the display protrusion 20 are provided on the back surface of the flange 12. In this case, since the display protrusions 18 and 19 and the display protrusion 20 are provided on the back surfaces of both the main body 11 and the flange 12, the visibility of the display part can be effectively improved, and the display part is cut. It can be accurately and easily set as a position mark. Further, the same effects as those of the cover 10 can be obtained with respect to the covers 30, 50, and 70.

(4) The flange 52 is formed over the entire axial direction of the cover 50. Depending on the wall surface to be constructed, it may be inappropriate to hit the screw B at a location corresponding to the guide hole 13.

In this regard, according to the above configuration, since the flange 52 is formed over a wide range, the screw B can be applied to a portion other than the guide hole 13 in the flange 52, and can correspond to various wall surfaces. Further, the same effects as those of the cover 50 can be obtained with respect to the covers 10, 30 and 70.

(5) On the surface of the cover 110, there is provided a display step portion 118 that functions as a display portion that indicates the end position of the pipe P5 when the pipe P5 is connected to the pipe joint 21. According to such a configuration, the pipe P5 and the cover 110 are arranged vertically with the surface of the cover 110 facing outward, the cover 110 is aligned with the wall surfaces W1 and W2, and the display step 118 is cut. If the pipe P5 is cut as a mark of the position, the pipe P5 can be formed to a length including the connection allowance with the pipe joint 21. In addition, the cover 120 can provide the same effects as those of the cover 110 described above.

(6) The piping system includes pipes P1 to P7 provided along the wall surfaces W1 to W3, pipe joints 21, 41, 61, 91 connected to the ends of the pipes P1 to P7, and covers 10, 30, 50. , 70, 80, 110, 120. Therefore, construction can be performed accurately and easily.

(7) The piping construction method is such that the pipe P1 that is to be covered by the cover 10 is positioned outside the cover 10 with the back surface of the cover 10 facing outward, and along the main body 11, and the first wall surface W1. An alignment step of aligning the cover 10 with respect to. The method also includes a cutting step of cutting the pipe P1 using the display protrusions 18 and 19 and the display protrusion 20 of the cover 10 as marks of the cutting position.

According to such a method, the display protrusions 18 and 19 and the display protrusion 20 provided on the back surface of the cover 10 are used as marks for the cutting position, so that the pipe P1 has a length including the connection allowance with the pipe joint 21. Can be formed. Therefore, the pipe P1, the pipe joint 21, and the cover 10 can be accurately and easily constructed. Further, the same effects as those of the cover 10 can be obtained with respect to the covers 30, 50, and 70.

<Modification> In addition, the said embodiment can also be changed as follows, for example. -The character of the printing part M of pipes P1-P7 can also be suitably changed into other characters and symbols other than "wall side". Further, the printing unit M can be omitted.

For example, a caulking agent (sealant) may be applied between the first wall surface W1 and the flange 12 of the cover 10. In this case, the gap between the flange 12 and the first wall surface W1 can be almost eliminated, and intrusion of rainwater and ultraviolet rays can be accurately prevented. In addition, the caulking agent can be applied to the other covers 30, 50, 70, 80, 110, 120 in the same manner.

Instead of the non-penetrating guide hole 13 that does not penetrate the flange 12, a penetrating attachment hole that penetrates the flange 12 may be used. Further, the guide hole 13 and the mounting hole can be omitted. These modifications can also be applied to the other covers 30, 50, 70, 80, 110, 120.

-For example, the number of pairs of restriction ribs 17 in the cover 10 can be one pair or three or more pairs. Further, such a regulation rib 17 can be omitted. These modifications can also be applied to the other covers 30, 50, 70, 80, 110, 120.

-For example, the characters and arrows of the display protrusion 20 of the cover 10 can be changed as appropriate. Moreover, the display recessed part of such shapes as a character and an arrow can also be formed. These modifications can also be applied to the other covers 30, 50, 70.

-You may make the thickness (length of an axial direction) of the display protrusions 18 and 19 larger or smaller than what was illustrated in the said embodiment. In this case, what is necessary is just to cut | disconnect a pipe | tube within the range from the one end to the other end in the axial direction of the display protrusion 18,18. These modifications can also be applied to the other covers 30, 50, 70.

As shown in FIG. 28, positioning ribs 151 for positioning the pipe joint 61 relative to the cover 50 can be set on the back surface of the main body 51 of the cover 50 by sandwiching the pipe joint 61 from both sides.

In the case where the existing female screw 95 as shown in FIG. 17 is not provided on the wall surface, a seated pipe joint may be used instead of the elbow-shaped pipe joint 91 having the male screw portion 93. In this case, the seat of the pipe joint is fixed to the wall surface with screws or the like.

17 and 18 exemplify the cover 80 having the box-shaped portion 81a having the insertion hole 84 and one cylindrical portion 81b extending linearly from the side wall of the box-shaped portion 81a. For example, in the case of a cover that covers a pipe joint having three connection ports called so-called cheese, a box-shaped part having an insertion hole and a side wall opposed to the box-shaped part are separated from each other corresponding to the pipe joint. A pair of cylindrical portions may be provided so as to extend. In the case of a pipe joint having four connection ports, a box-shaped part having an insertion hole and three cylindrical parts extending from the three side walls of the box-shaped part 81a may be provided. Thereby, the freedom degree of the attachment position of a faucet can be raised.

For example, the restriction rib 89 of the cover 80 is omitted, and instead, the inner surfaces of the pair of recesses 88 are projected further inward than those illustrated in the above embodiment, so that the pipe joint 91 is formed by the pair of inner wall surfaces. It is also possible to configure a restricting section that restricts the co-rotation. In short, such a restricting portion may be a portion that is disposed to face the pipe joint inside the cover and restricts the joint of the pipe joint by contacting the pipe joint.

The display stepped portion 118 of the cover 110 may be stepped downward from the corner portion of the main body 111 toward both ends. In this case, a portion surrounded by the pair of display step portions is a protrusion.

A plurality of regulating ribs 135 of the saddle 130 can be formed at intervals in the axial direction. Further, the regulation rib 135 can be omitted. A non-penetrating guide hole may be formed on the surface of the base portion 132 of the saddle 130.

<Appendix> The technical idea that can be grasped from the above embodiment will be described. (1) A cover that covers a pipe joint to which an end portion of a pipe provided along a wall surface is connected from the outside and is attached to the wall surface, and when the pipe is connected to the pipe joint in the cover A pipe joint cover provided with a display portion indicating an end position of the pipe.

(2) The cover is provided with a plurality of display portions respectively indicating end positions of the tubes corresponding to a plurality of types of the pipe joints. cover.

(3) A main body that covers the pipe joint from the outside, and a flange that extends from an edge of the main body and is attached to a wall surface. The display section is provided on at least one of the main body and the flange. The cover for a pipe joint according to the technical idea (1) or (2).

(4) A pipe provided along the wall surface, a pipe joint connected to an end of the pipe, and the cover according to any one of technical ideas (1) to (3), Piping system.

(5) A pipe construction method in which an end portion of a pipe provided along a wall surface is connected to a pipe joint, and a cover that covers the pipe joint from the outside is attached to the wall surface, the technical ideas (1) to (3) A piping construction method comprising: an alignment step of aligning the wall surface of the cover according to any one of the above; and a cutting step of cutting the pipe using the display portion of the cover as a mark of a cutting position.

DESCRIPTION OF SYMBOLS 10 ... Cover, 11 ... Main body, 12 ... Flange, 12a ... Peripheral part, 12b ... Surrounded part, 12c, 12d ... Rib, 13 ... Guide hole, 13a ... Annular rib, 14a-14d ... Projection for alignment , 15 ... Wall part, 16 ... Projection part, 17 ... Restriction rib, 18, 19 ... Display protrusion (display part), 20 ... Display protrusion (display part), 21 ... Pipe joint, 22 ... Connection port, 30 ... Cover, 31 ... main body, 31a ... straight part, 31b ... branching part, 32 ... flange, 32a ... peripheral edge part, 32b ... surrounded part, 32c ... rib, 33 ... guide hole, 33a ... annular rib, 34a-34d ... Alignment ridges, 35 ... walls, 36 ... projections, 37 ... regulating ribs, 38a to 38c ... display projections (display parts), 39a to 39c ... display projections (display parts), 40a to 40c ... Display protrusion (display part), 41... Pipe fitting, 42 42c ... Connection port, 50 ... Cover, 51 ... Main body, 52 ... Flange, 52a ... Peripheral part, 52b ... Surrounded part, 52c ... Rib, 53 ... Guide hole, 53a ... Annular rib, 54a, 54b ... Alignment Ridges, 55 ... walls, 56 ... projections, 57 ... regulatory ribs, 58a to 58d, 59a to 59d ... display ridges, 60a to 60d ... display projections, 61 ... pipe fittings, 62 ... connection ports, 70 ... Cover, 71 ... Main body, 72 ... Flange, 72a ... Peripheral part, 72b ... Surrounded part, 72c ... Rib, 73 ... Guide hole, 73a ... Circular rib, 74a, 74b ... Alignment protrusion, 75 ... Wall part, 76 ... Projection part, 77 ... Restriction rib, 78a, 78b, 79a, 79b ... Display protrusion, 80a, 80b ... Display protrusion, 80 ... Cover, 81 ... Main body, 81a ... Box-shaped part, 81b ... Cylindrical part, 82 ... flange, DESCRIPTION OF SYMBOLS 3 ... Guide hole, 84 ... Insertion hole, 85 ... Wall part, 86 ... Projection part, 87 ... Restriction rib, 88 ... Recessed part, 89 ... Restriction rib, 89a ... Restriction part, 91 ... Pipe joint, 91a ... Cylindrical part , 92a, 92b ... connection port, 93 ... male screw part, 94 ... through hole, 95 ... female screw, 100 ... single water faucet, 101 ... flange, 102 ... male screw part, 110 ... cover, 111 ... main body, 112 ... flange, 112a ... peripheral edge, 112b ... enclosed part, 112c ... rib, 113 ... guide hole, 113a ... annular rib, 115 ... wall part, 116 ... projection part, 117 ... regulating rib, 118 ... display step part (display part), DESCRIPTION OF SYMBOLS 120 ... Cover, 121 ... Main body, 122 ... Flange, 122a ... Peripheral part, 122b ... Surrounded part, 122c ... Rib, 123 ... Guide hole, 123a ... Circular rib, 124 ... Corner | angular part, 125 ... Wall part, 1 26 ... Projection part, 127 ... Restriction rib, 128 ... Inclination part, 129 ... Base end (display part), 130 ... Saddle, 131 ... Holding part, 132 ... Base part, 133 ... Mounting hole, 134 ... Meat removal part, 135 ... Regulating ribs 151... Rib for positioning, A 1 .. protruding corner, A 2 .. entering corner, B... Screw, L 1, L 2 .. reference line, H .. through hole, M .. printing portion, P 0 to P 7. ), PB ... pipe body, PC ... covering material, W1 ... first wall surface, W2 ... second wall surface, W3 ... third wall surface, Z ... straight ruler.

Claims (1)

  A cover for covering a pipe joint to which a pipe having a covering material is connected, comprising a main body having a half-cracked cylindrical shape, and at the end of the main body, a wall portion having an inner periphery forming a U-shape is formed, Protrusions projecting toward the inner peripheral side are formed at both base ends of the wall part, and the inner peripheral edge of the wall part including the projecting part bites into the outer peripheral surface of the covering material of the pipe. The wall portion is inclined with respect to the central axis of the main body so that the outer surface of the wall portion faces away from the wall surface side when the cover is applied to the wall surface to be installed. This is a cover for pipe joints.

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