JP6816873B2 - Hot water heater adapter - Google Patents

Description

The present invention relates to a hot water supply port adapter attached to the wall of a bathtub for discharging / sucking hot water, and a method of attaching the hot water supply port adapter.

In the hot water circulation type bathtub system, a hot water supply port adapter is attached to the bathtub wall, and hot water is supplied from the outdoor water heater into the bathtub or between the outdoor water heater and the bathtub via this hot water supply port adapter. I try to circulate hot water. A normal hot water supply port adapter includes an outside mounting member such as a body arranged on the outside (back side) of the bathtub, and an adapter body that can be assembled to the body from the inside (front side) of the bathtub through a mounting hole on the bathtub wall. There is.

In such a circulation type hot water supply port adapter, two flow paths, an outward flow path and a return flow path, are provided inside, and two outer pipe connection portions are provided in the body corresponding to each flow path. (Pipe joint) is provided. Further, two outer pipes, an outward pipe and a return pipe, which are connected to the outdoor water heater, are connected to each pipe joint.

Generally, since the body of such a hot water supply port adapter is attached to the outer wall surface of the bathtub, it is difficult to assemble such a hot water supply port adapter when it is structurally impossible to work around the attachment hole on the back surface side of the bathtub.

Therefore, as shown in Patent Documents 1 to 3, a method of constructing the inside of a hot water supply port adapter so that an outside mounting member such as a body can be assembled from the inside of a bathtub has been proposed. The hot water supply port adapter used in this inner construction method includes a body that can be inserted from the inside of the bathtub into the mounting hole of the bathtub wall, and an adapter body that can be assembled inside the bathtub. When assembling this hot water supply port adapter to the bathtub wall, the outer pipes such as the going pipe and the return pipe are pulled into the bathtub from the outside of the bathtub through the mounting holes, and the body is attached to the lead-in end of the outer pipe inside the bathtub. After connecting, the body with the outer tube is passed through the mounting hole and placed on the back side of the bathtub. After that, the hot water supply port adapter is assembled to the bathtub wall by fixing the adapter body to the body via a connecting member or the like.

On the other hand, the body of the hot water supply port adapter is a rear drawer type (S type or I type) in which the pipe joint extends parallel to the axis of the body, and the body is bent at a substantially right angle to the axis of the body. There is a side-drawing type that extends in the vertical direction, a so-called bent type (L type). Then, the S-shaped body and the L-shaped body are appropriately used according to the situation of the adapter assembly space at the installation site.

However, if there are two types of bodies, not only the number of parts increases, but also troublesome replacement work due to misattachment or the like may occur.

Therefore, in recent years, as shown in Patent Document 4 below, a body of a hot water supply port adapter that can be used as both an S-type body and an L-type body has been proposed.

In the body of the hot water supply port adapter shown in the same document, two pipe joints as outer pipe connecting portions are rotatably connected to the body body. Then, by rotating the pipe joint with respect to the body body, the pipe joint is arranged parallel to the axis of the body body, and the L-shaped specification form is arranged orthogonally to the axis of the body. It is configured so that it can be used in any form of.

Patent No. 35135582 Patent No. 3981786 Patent No. 4129709 JP-A-2015-21638

However, in the hot water supply port adapter for both S type and L type as disclosed in Patent Document 4, the body becomes large and the body cannot be inserted into the mounting hole of the bathtub wall. There is a problem that it is difficult to adopt the inner construction method shown in Patent Documents 1 to 3.

That is, the body of the hot water supply port adapter shown in Patent Document 4 is provided with two upper and lower flow paths extending rearward along the axis of the body in the body body, and upward at the rear end of the upper flow path. An upward joint receiving port that opens is provided, and a downward joint receiving port that opens downward is provided at the rear end of the lower flow path. Further, the pipe joint is formed in an L shape in which the insertion connection portion on the base end side is bent 90 ° with respect to the outer pipe connection portion on the tip side, and each insertion connection portion in the two pipe joints is formed. It is rotatably connected to the upward joint socket and the downward joint socket, respectively. In this way, the insertion connection part of the pipe joint is rotatably attached around the axis of the joint socket of the body body (the axis around the vertical direction), and by the rotation operation, the outer pipe connection part of the pipe joint becomes the shaft of the body body. It is configured to be compatible with both the S-shaped specification form parallel to the center and the L-shaped specification form orthogonal to the axial center of the body.

However, in the body of this hot water supply port adapter, since the insertion connection portion of the pipe joint is arranged so as to protrude vertically from above and below the outer peripheral surface of the body body, the size of the entire body becomes large and the body is mounted on the bathtub wall. There is a problem that the size cannot be reduced to the extent that it can be inserted into the mounting hole, and it has been difficult to adopt the inner construction method as shown in Patent Documents 1 to 3 above, for example.

The present invention has been made in view of the above problems, and is an S-type specification in which the outer pipe connection portion of the pipe joint is arranged substantially parallel to the axis of the body body and an L-type specification in which the outer pipe connection portion is arranged at a right angle. It is an object of the present invention to provide a hot water supply port adapter and a method of attaching the hot water supply port adapter, which can be used in any form and can further reduce the size of the body.

In order to solve the above problems, the present invention provides the following means.

[1] A body arranged on the outside of the bathtub in the mounting hole of the bathtub wall, and an adapter main body connected to the body by inserting the rear part from the inside of the bathtub into the mounting hole with the front part arranged inside the bathtub. The body is provided for a body body having one and other side pipelines arranged so as to extend rearward, and for two pipes attached to the body body corresponding to the one side and the other side pipelines, respectively. It is a hot water supply port adapter equipped with a joint,
When the body body is divided into four sections 1 to 4 arranged side by side along the circumferential direction in the front view, the rear side portion of the one-sided pipeline is arranged in the first section. At the same time, the rear side portion of the other side pipeline is arranged in the third section.
The rear end position of the one-sided pipeline is located anterior or posterior to the rear-end position of the other-sided pipeline.
The joint receiving port communicating with the rear end of the one side pipeline is opened in the direction from the first section toward the second section, and the joint receiving port communicating with the rear end of the other side pipeline is the first. It is opened in the direction from the 3rd division to the 4th division.
The pipe joint is provided at the outer pipe connecting portion for connecting the outer pipe and the base end side of the outer pipe connecting portion, and is a connecting port that opens in a direction orthogonal to the axis of the outer pipe connecting portion. And with
A hot water supply port adapter characterized in that the connecting port of the pipe joint is rotatably attached to the joint receiving port of the one side and the other side pipeline around the opening axis of each other.

[2] The hot water supply port adapter according to item 1 above, wherein the body is configured to be inserted into a mounting hole in a bathtub wall.

[3] The hot water supply port adapter according to item 1 or 2 above, wherein the front end openings of the pipelines on one side and the other side are arranged at point-symmetrical positions on the front surface of the body body.

[4] This is a method of attaching the hot water supply port adapter in which the hot water supply port adapter according to the previous item 2 is attached to the mounting hole of the bathtub wall.
The process of connecting the lead-in end of the outer pipe drawn from the outside of the bathtub to the inside of the bathtub through the mounting hole to the outer pipe connection portion of the body.
The process of passing the body to which the outer pipe is connected through the mounting hole and arranging it on the outside of the bathtub,
A method for mounting a hot water supply port adapter, which comprises a step of inserting the rear portion of the adapter body into a mounting hole to connect to the outside tank mounting member and arranging the front portion of the adapter body inside the bathtub.

According to the hot water supply port adapter of the invention [1], the body body is divided into the first to fourth sections arranged in the circumferential direction, and one side and the other side pipeline are formed into the first and third sections, and one side is formed. The joint receiving port at the rear end of the pipeline is opened toward the second section, and the joint receiving port at the rear end of the other side pipeline is opened toward the fourth section, and each joint receiving port is connected to each pipe joint. Since each of the ports is rotatably attached, one side of the orthogonal pipeline formed on the rotation axis of each pipe joint is arranged from the first section to the second section, and the other side is arranged from the third section to the third section. It is arranged over 4 divisions. Therefore, it is possible to prevent the one-sided and the other-side orthogonal pipelines from protruding in the outer diameter direction from the outer peripheral surface of the body body, and it is possible to reduce the size or slimming of the entire body including the pipe joint. .. Further, in the present invention, the rear end of the one-side pipeline corresponding to the rotating shaft portion of the one-side pipe joint is positioned in the front-rear direction with respect to the rear end of the other-side pipeline corresponding to the rotating shaft portion of the other-side pipe joint. Since it is shifted, it is possible to prevent parts such as orthogonal pipelines from being placed in the movable area of each pipe joint, and it is possible to rotate both pipe joints without interfering with other parts. It can be used as an L-shaped hot water supply port adapter without any problems.

According to the hot water supply port adapter of the invention [2], even if the space on the back side of the mounting hole in the bathtub is narrow and it is difficult to work on the back side of the mounting hole, the inner construction method of assembling only from the inside of the bathtub. Can be adopted.

According to the hot water supply port adapter of the invention [3], it can be attached even when the body is rotated 180 ° with respect to the adapter body. Therefore, when using it in the L-shaped specification form, by rotating the body 180 ° and attaching it, the protruding direction of the outer pipe connection part, that is, the pulling out direction of the outer pipe can be reversed by 180 °, and the versatility is improved. Can be improved.

According to the method of attaching the hot water supply port adapter of the present invention [4], since it can be assembled only by working from the inside of the bathtub, the space on the back side of the mounting hole in the bathtub is narrow and it is difficult to work on the back side of the mounting hole. Even so, the hot water supply port adapter can be securely attached.

FIG. 1 is a perspective view showing an exploded view of a hot water supply port adapter according to an embodiment of the present invention. FIG. 2A is a perspective view of the back surface side when the hot water supply port adapter of the embodiment is used in the S-type specification form. FIG. 2B is a perspective view of the back surface side when the hot water supply port adapter of the embodiment is used in the L-shaped specification form. FIG. 3A is a plan view when the hot water supply port adapter of the embodiment is used in the S-type specification form. FIG. 3B is a plan view when the hot water supply port adapter of the embodiment is used in the L-shaped specification form. FIG. 4 is a sectional view taken along line IV-IV of FIG. 3A. FIG. 5 is a sectional view taken along line VV of FIG. 3A. FIG. 6 is a front view showing the hot water supply port adapter of the embodiment. FIG. 7 is a perspective view of the back surface side showing the body applied to the hot water supply port adapter of the embodiment in an exploded manner. 8A and 8B are views showing a body body in the body of the embodiment, where FIG. 8A is a plan view, FIG. 8B is a front view, and FIG. 8C is a bottom view. FIG. 9 is a perspective view showing a pipe joint in the body of the embodiment.

1 to 6 are views for explaining the hot water supply port adapter A according to the embodiment of the present invention, and FIGS. 7 to 9 are views for explaining the body B adopted for the hot water supply port adapter A of the embodiment. is there.

As shown in these figures, the hot water supply port adapter A adopted in the present embodiment is assembled to the mounting hole H provided in the bathtub wall W. This hot water supply port adapter A not only supplies hot water supplied from the outdoor water heater to the bathtub, but also sucks the hot water in the bathtub and sends it to the outdoor water heater, where it is reheated to a high temperature. It is possible to perform a reheating process (circulation process) in which the hot water is returned to the bathtub.

The hot water supply port adapter A of the present embodiment includes a body B constituting an outer tank mounting member, a flange member 3, and an adapter main body 5 called a flow path partition member or the like as basic components. Further, the body B includes a body body 1 and two pipe joints 2 and 2.

Here, in the present embodiment, in order to facilitate the understanding of the invention, the direction parallel to the axis of the hot water supply port adapter A is defined as the "front-back direction", and the direction toward the inside of the bathtub is "front". The "direction" and the outward direction will be described as "rear direction". That is, in the present embodiment, the left direction toward FIGS. 3A and 3B is the "forward direction", and the right direction in the figure is the "rear direction". Further, in the present embodiment, the front side may be referred to as "front side", "front side (front side)", and the rear side may be referred to as "back side (back side)" or "back side". Further, in the present invention, the upward direction is referred to as "upward", the downward direction in the figure is referred to as "downward", and the left direction in the figure is referred to as "leftward" toward the front view of FIG. The right direction will be described as "right direction".

In the hot water supply port adapter A of the present embodiment, the body main body 1 is arranged in the circumferential direction by dividing the body main body 1 into four equal parts along the circumferential direction in the state of being viewed from the front view of FIG. 8 (b). It is divided into four divisions R1 to R4 to be arranged. Specifically, as shown by the alternate long and short dash line in the figure, the body body 4 is divided into four by a bisector line passing through the center of the front surface of the body body 1 and along the vertical direction and a bisector line along the horizontal direction. It is divided into R1 to R4. In the present embodiment, when the dial of the clock is taken as an example, the range from 12 o'clock to 3 o'clock (upper right part) is set as the first division R1 and the range from 3 o'clock to 6 o'clock (lower right part). ) Is the second division R2, the range from 6:00 to 9:00 (lower left part) is the third division R3, and the range from 9:00 to 12:00 (the upper left part is the fourth division R4, that is, from the first division R1). The second division R2, the third division R3, and the fourth division R4 are arranged in this order in the clockwise direction of FIG. 8B.

In the present embodiment, the upper right portion of the body body 1 is designated as the first division R1, but the present invention is not limited to this, and in the present invention, any one of the lower right portion, the lower left portion and the upper left portion may be designated as the first division. Further, in the present embodiment, the first to fourth sections R1 to R4 are arranged side by side in the clockwise order of FIG. 8B, but the present invention is not limited to this, and the first to fourth sections are counterclockwise in the present invention. They may be arranged side by side in a clockwise order.

As shown in FIGS. 1 to 5 and 7 to 9, the body body 1 has a front side portion 11 having a substantially circular front view and two pipeline forming portions 12a integrally formed on the back surface side of the front side portion 11. It is equipped with 12b. Of the two pipeline forming portions, the front end of the one-side pipeline forming portion 12a is connected to the first division R1 on the upper right side of the back surface side of the front side portion 11, and the axial center of the body body 1 (hot water supply port adapter A). It is arranged so as to extend rearward in parallel with the axis). The pipe line forming portion 12b on the other side is arranged so that its front end is connected to the lower left third section R3 on the back surface side of the front side portion 11 and extends rearward in parallel with the axial center of the body body 1. The other side pipeline forming portion 12b is formed longer than the one side pipeline forming portion 12a, and the rear end of the other side pipeline forming portion 12b is arranged behind the rear end of the one side pipeline forming portion 12a. ing. Both pipeline forming portions 12a and 12b are integrally formed with overlapping portions in the front-rear direction.

Pipeways 13a and 13b extending along the axial direction are formed inside both pipeline forming portions 12a and 12b (see FIGS. 4 and 5). The front ends of the pipelines 13a and 13b are formed to have a large diameter, and are opened forward at the front surface of the front side portion 11, respectively.

Further, a joint receiving port 14a having a circular bottom view (bottom view) is formed on the lower surface of the rear end portion of the one-sided pipeline forming portion 12a, and the rear end portion of the one-sided pipeline 13a is formed in the joint receiving port 14a. Is opened downward. In other words, the direction in which the joint receiving port 14a provided at the rear end of the one-side pipeline 13a is orthogonal to the front-rear direction (vertical direction), and is the direction from the first division R1 to the second division R2 in the front view. It is open (downward).

Further, a joint receiving port 14b having a circular shape in a plan view is formed on the upper surface of the rear end portion of the other side pipeline forming portion 12b, and the rear end portion of the other side pipeline 13b is opened upward in this joint receiving port 14b. ing. In other words, the direction in which the joint receiving port 14b provided at the rear end of the other side pipeline 13b is orthogonal to the front-rear direction (vertical direction), and is the direction from the third section R3 to the fourth section R4 in the front view. It is open (upward).

The pipe joint 2 has a straight tubular outer pipe connecting portion 21 for connecting an outer pipe 9 such as an outgoing pipe and a returning pipe, and a base end of the outer pipe connecting portion 21 orthogonal to the axis of the outer pipe connecting portion 21. It is integrally provided with a cylindrical insertion connecting portion 25 that protrudes in the direction of the body and can be inserted into the joint receiving ports 14a and 14b of the body body 1.

A circular connecting port 26 that opens on the tip surface of the insertion connecting portion 25 of the pipe joint 2 in a direction parallel to the axis of the insertion connecting portion 25, that is, in a direction orthogonal to the axis of the outer pipe connecting portion 21. Is formed. The insides of the outer pipe connecting portion 21 and the insertion connecting portion 25 are communicated with each other, so that the tip opening of the outer pipe connecting portion 21 is communicated with the connecting port 26 of the insertion connecting portion 25.

The insertion connecting portions 25 and 25 of the pipe joints 2 and 2 are connected to the joint receiving ports 14a and 14b of the body body 1 around the opening shafts of the joint receiving ports 14a and 14b and the connecting ports 26 and 26 of the insertion connecting portions 25 and 25. It can be mounted rotatably (around the axis in the vertical direction). Then, by rotating the pipe joints 2 and 2, as shown in FIGS. 2A and 3A, the pipe joints 2 and 2 are arranged so as to extend rearward in parallel with the axial center of the body body 1. (S type) specification form and a bent type or elbow type (L type) arranged so as to extend laterally (to the right) orthogonal to the axis of the body body 1 as shown in FIGS. 2B and 3B. ) Can be used in any form with the specification form.

Here, in the present embodiment, as shown in FIGS. 4 and 5, the pipe joints 2 and 2 are formed by the peripheral portions of the joint sockets 14a and 14b of the body body 1 and the insertion connecting portions 25 and 25 of the pipe joints 2 and 2. Pipeways 15a and 15b are formed along the axis of rotation of. The pipelines 15a and 15b are configured as orthogonal pipelines extending in a direction orthogonal to the pipelines (axial pipelines) 13a and 13b in the pipeline forming portions 12a and 12b. In the present embodiment, the one-sided pipeline forming portion 12a (one-sided axial pipeline 13a) is formed in the first region R1 on the upper right of the body body 1 from the rear end of the one-side axial pipeline 13a. One side orthogonal pipe line 15a is formed so as to bend downward, and the other side pipe line forming portion 12b (the other side axial direction pipe line 13b) is formed in the third region R3 at the lower left of the body body 1, and the like. The other side orthogonal line 15b is formed so as to bend upward from the rear end of the directional axial line 13a. Therefore, the one-side orthogonal conduit 15a is arranged along the vertical direction in the first and second regions R1 and R2 of the right half of the body body 1, and the other side orthogonal flow path 15b is the left half of the body body 1. Since the two orthogonal pipelines 15a and 15b are arranged along the vertical direction in the third and fourth regions R3 and R4 of the above, it is avoided that the two orthogonal pipelines 15a and 15b are arranged so as to protrude in the outer diameter direction from the outer peripheral surface of the body body 1. can do.

On the other hand, as shown in FIGS. 1 and 8 and the like, threaded holes 16 and 16 are formed on both side positions of the front end surface of the body body 1. Further, locking claws 17 are provided at two locations on the outer peripheral portion of the front side portion 11 of the body body 1 so as to form a part of the outer peripheral portion. One end side of both locking claws 17 in the circumferential direction is rotatably attached, and the other end side is not fixed and is a free end. As a result, both locking claws 17 are configured to be openable and closable between the closed state shown by the solid line in FIG. 8B and the open state shown by the imaginary line in FIG. When each locking claw 17 is closed, the locking claw 17 is arranged along the outer circumference of the front side portion 11, and the front side portion 11 of the body body 1 is formed in a substantially circular shape in a front view (front view), and is outside. The diameter dimension is configured to be smaller than the inner diameter dimension of the mounting hole H in the bathtub wall W. Further, as shown in FIG. 2A and the like, when the locking claw 17 is opened, the locking claw 17 is arranged so as to project in the outer diameter direction. In this open state, the front side portion 11 of the body 1 cannot be inserted into the mounting hole H, and the tip of the locking claw 17 can be locked to the peripheral edge of the mounting hole H in the bathtub wall W. Has been done.

Further, the pipeline forming portions 12a and 12b provided on the back surface side of the front side portion 11 of the body body 1 are formed so that the outer diameter dimension is smaller than the outer diameter dimension of the front side portion 11, and the front surface shown in FIG. In the visual state, the pipeline forming portions 12a and 12b are arranged within the range of the front side portion 11 in the state where the locking claw 17 is closed. Further, when the body B is set to the S-type specification form, the two pipe joints 2 and 2 are arranged so as to be within the range of the front side portion 11 in the state where the locking claw 17 is closed in the front view state. Therefore, the body B is configured to be inserted into the mounting hole H of the bathtub wall W in the S-type specification form. If the pipe joints 2 and 2 are slightly bent from the S-shaped specification form, that is, the pipe joints 2 and 2 are set at an angle smaller than 90 ° with respect to the body body 1, the pipe joints 2 and 2 are bathtubed. The body B can be inserted into the mounting hole H by appropriately rotating the body B while inserting the body B into the mounting hole H of the wall W.

As shown in FIGS. 1 to 6, the adapter main body 5 includes a disk-shaped in-tank protrusion 51 having a hollow structure. The outer diameter of the protrusion 51 in the tank is formed to be larger than the inner diameter of the mounting hole H in the bathtub wall W so that the protrusion 51 cannot be inserted into the mounting hole H.
The internal space of the protrusion 51 in the tank is partitioned to the left and right by a partition wall 52. Further, discharge ports 53 and 53 are formed on the lower front wall of the outer peripheral wall of the protrusion 51 in the tank, respectively, corresponding to the left and right internal spaces partitioned by the partition wall 52. Further, a large number of small holes 54 are formed on the front wall of the protrusion 51 in the tank corresponding to the left and right internal spaces.

Cylindrical pipe portions 55 and 55 are integrally formed on the back surface side of the in-tank protrusion 51 so as to extend rearward corresponding to the front end openings of the pipe lines 13a and 13b in the front side portion 11 of the body B, respectively. There is. The insides of the pipe portions 55 and 55 and the left and right internal spaces in the in-tank protrusion 51 are connected to each other. Therefore, the hot water introduced into the pipe portions 55, 55 from the rear end opening is configured to be introduced into the corresponding internal space through the pipe portions 55, 55 and discharged from the corresponding discharge ports 53, 53. At the same time, the hot water in the bathtub sucked from the discharge ports 53 and 53 is introduced into the corresponding internal space and flows out from the rear end openings of the corresponding pipe portions 55 and 55, respectively.

In the present embodiment, the in-tank protrusion 51 of the adapter body 5 is configured as the front portion, and the pipe portions 55 and 55 are configured as the rear portion.

As shown in FIGS. 1, 4 and 5, the flange member 3 is formed in an annular shape in the front view so that the outer diameter dimension is larger than the inner diameter dimension of the mounting hole H so that the mounting hole H cannot be inserted. It is configured in.

The flange member 3 is formed with pipe portion insertion holes 31, 31 corresponding to the pipe portions 55, 55 of the adapter body 5. Further, screw insertion holes 32 and 32 (only one side is shown in FIG. 1) are formed on the left and right sides of the flange member 3.

In addition, annular packings 38 and 38 are detachably attached to both front and rear sides of the flange member 3.

The body B, the adapter body 5, and the flange member 3 configured as described above are assembled to the bathtub wall W as follows. That is, as shown in FIGS. 1, 4 and 5, with each locking claw 17 of the body B open, each locking claw 17 is placed on the peripheral edge of the mounting hole H on the back surface side (outside of the bathtub) of the bathtub wall W. It is arranged so as to be locked, and the outer peripheral edge portion of the flange member 3 is arranged so as to be locked to the peripheral edge portion of the mounting hole H on the surface side (inside the bathtub) of the bathtub wall W. Further, the pipe portions 55 and 55 of the adapter body A are inserted into the pipe portion insertion holes 31 and 31 of the flange member 3, and the in-tank protrusion 51 is flanged while being inserted into the front ends of the pipe passages 13a and 13b of the body B. It is arranged on the surface side of the member 3. In this state, the two screws 4 penetrating from the front surface side of the adapter body 5 are inserted into the screw insertion holes 32 and 32 of the flange member 3 and screwed into the thread cutting holes 16 and 16 of the body B. As a result, the in-tank protrusion 51 of the adapter body 5 and the front side portion 11 of the body B sandwich the peripheral portion of the mounting hole of the bathtub wall W via the flange member 3, and are composed of the body B, the adapter body 5 and the flange member 3. The hot water supply port adapter A is assembled to the bathtub wall W in a penetrating state.

In the mounting structure of the hot water supply port adapter of the present embodiment, as shown in FIGS. 2A to 5, the outer pipe connecting portions 21 and 21 of the two pipe joints 2 and 2 are formed of a flexible pipe or the like having flexibility. One ends of two outer pipes 9 and 9 such as an outward pipe and a return pipe are connected via pipe bands 91 and 91, respectively, and the other ends of the two outer pipes 9 and 9 are connected to an outdoor water heater. Be connected. When the hot water beam is double-conveyed, hot water is supplied from the outdoor water heater to the two outer pipes 9 and 9, respectively, and the body B is supplied from both outer pipes 9 and 9 via the pipe joints 2 and 2. It is introduced into the pipe portions 55 and 55 of the adapter main body 5 through the pipelines 13a, 13b, 15a and 15b, and is discharged from the discharge ports 53 and 53 into the bathtub.

Further, the outer pipe 9 on the return side as a return pipe is connected to the pipe joint 2 of the pipe line 13a on one side in the body B, and the outer pipe 9 on the forward side as a forward pipe is for the pipe of the pipe line 13b on the other side. When reheating is performed when connected to the joint 2, hot water in the bathtub is sucked from the discharge port 53 on one side of the adapter body 5, passes through the pipe portion 55 on one side of the adapter body 5, and the body It is introduced into the pipelines 13a and 15a on one side of B. The hot water introduced into the pipelines 13a and 15a on the one side is supplied to the outer pipe 9 on the return side from the pipe joint 2 on the one side, and is returned to the outdoor water heater through the outer pipe 9. On the other hand, the hot water returned to the water heater is heated, supplied to the outer pipe 9 on the outgoing side, and introduced into the other side pipelines 13b and 15b via the pipe joint 2 on the other side of the body B. The hot water introduced into the pipes 13b and 15b on the other side is discharged into the bathtub from the discharge port 53 on the other side through the pipe portion 55 on the other side of the adapter main body 5. In this way, hot water is circulated between the bathtub and the outdoor water heater.

Needless to say, the outer pipe 9 on the return side is connected to the pipe joint 2 of the pipes 13b and 15b on the other side of the body B, and the outer pipe 9 on the forward side is connected to the pipe joint 2 of the pipes 13a and 15a on the one side. If reheating is performed while connected to 2, hot water will be circulated in the opposite direction to the above.

By the way, in the conventional hot water supply port adapter for SL as shown in Patent Document 4, since the pipe joint is rotatably attached to the outer peripheral surface of the body body, the pipe joint is arranged so as to project outward from the outer peripheral surface of the body body. As a result, the diameter of the entire body including the pipe joint becomes large, and it is difficult to reduce the size of the body.

Therefore, in the present embodiment, as described above, of the two axial pipelines 13a and 13b in the body body 1, one side axial pipeline 13a is formed in the first division R1 on the upper right of the body body 1. Then, the one-side orthogonal pipeline 15a is arranged downward from the rear end of the one-side axial pipeline 13a, and the other-side axial pipeline 13a is formed in the third section R3 at the lower left of the body body 1, and the other. Since the side orthogonal pipeline 15b is arranged upward from the rear end of the other axial direction pipeline 13b, both orthogonal pipelines 15a and 15b are arranged along the vertical direction in the right half and the left half of the body body 1, respectively. To. Therefore, it is possible to prevent the orthogonal pipelines 15a and 15b from protruding in the outer diameter direction from the outer peripheral surface of the body body 1, and it is possible to reduce the size or slimming of the entire body B including the pipe joint 2. it can.

Further, in the hot water supply port adapter A of the present embodiment, since the pipe joint 2 in the body B is rotatably attached to the body body 1, it is shown in FIGS. 2A and 3A depending on the situation at the assembly site and the like. It is a so-called SL combination that can be used in any of the S-type specification form shown and the L-type specification form shown in FIGS. 2B and 3B. Therefore, it is possible to improve convenience without the complexity of preparing two types of bodies, S type and L type, and using them appropriately.

Here, in the present embodiment, since the two orthogonal pipelines 15a and 15b corresponding to the rotating shafts of the pipe joints 2 and 2 are formed so as to be displaced from each other in the front-rear direction, the pipe joints 2 and 2 are mutually displaced. It is possible to prevent a portion such as an orthogonal conduit from being arranged in the movable region. Therefore, as shown in FIGS. 2B and 3B, the pipe joints 2 and 2 can be reasonably rotated 90 ° laterally without interfering with other parts. Therefore, it can be surely set to the L-type specification form, and can be used as a hot water supply port adapter A for both S-type and L-type without any problem.

Since the body B of the hot water supply port adapter A of the present embodiment has a structural range of the rotation angle of the pipe joints 2 and 2 with respect to the body body 1 within 90 °, for example, as shown in FIGS. 2B and 3B. Although it can be used when the pipe fittings 2 and 2 are rotated 90 ° to the right, it cannot be rotated 90 ° to the opposite left side as it is.

However, in the body B of the hot water supply port adapter A of the present embodiment, as described below, the pipe joints 2 and 2 are in either a state of being rotated 90 ° to the right or a state of being rotated 90 ° to the left. Can also be handled.

That is, in the hot water supply port adapter A of the present embodiment, the configuration of the front surface of the body B is formed in a point-symmetrical shape with the axis of the body B as a reference point. Therefore, even when the body B is rotated 180 ° around the axis of the adapter body 5, it can be assembled to the bathtub wall W in the same manner as described above. In other words, by rotating the body B in the L-shaped specification form by 180 ° and assembling it, it can be set to either the state where the pipe joints 2 and 2 are rotated 90 ° to the right side or the state where it is rotated 90 ° to the left side. It is possible to further improve the convenience.

Moreover, in the present embodiment, the front side portion 11 of the body B is formed smaller than the mounting hole H of the bathtub wall W, and other than the front side portions 11 such as the pipeline forming portions 12a and 12b of the body B and the pipe joints 2 and 2. Since the portion of the above is formed so as to fit within the range of the front side portion 11 in the front view, the body B can be inserted into the mounting hole H, and the hot water supply port adapter A can be inserted from the inside of the bathtub as described below. It is possible to adopt the inner construction method of assembling only by the work of.

For example, in the hot water supply port adapter A of the present embodiment, the above-mentioned inner construction method is adopted when the existing hot water supply port adapter assembled to the bathtub wall W is replaced.

First, the member corresponding to the adapter body 5 in the existing hot water supply port adapter (old adapter) is removed. Subsequently, the member corresponding to the flange member 3 (old male screw member) in the old adapter is removed, but before that, the member corresponding to the body B in the old adapter (old body) is guided by a wire or the like from the inside of the bathtub through a mounting hole. The end of the member is fixed. In that state, remove the old male screw member and remove the old body on the outside of the bathtub. After that, pull the two outer pipes (old outer pipes) connected to the old body from the outdoor water heater side, pull out the old body and the guide member to a large workable space, and remove the old body from the guide member. , Discard the old body and old outer pipe.

After that, two new outer pipes 9 connected to the outdoor water heater are fixed to the end of the guide member. In the case where only the hot water supply port adapter is replaced without replacing the old outer pipe, the old outer pipe is fixed to the guide member without discarding the old outer pipe.

Next, the guide member is pulled from the inside of the bathtub, and the end portion of the outer pipe 9 is pulled into the inside of the bathtub through the mounting hole H. Subsequently, after removing the guide member from the outer pipe 9, the body B in the hot water supply port adapter A of the present embodiment is attached to the end of the outer pipe 9. That is, the end portion of the outer pipe 9 is fitted into the outer pipe connecting portion 21 of the body B, and the pipe band 91 is wound around the outer periphery of the connecting end portion of the outer pipe 9 to fix it.

When connecting the outer pipe 9 to the body B, a short auxiliary outer pipe is previously fixed to the outer pipe connecting portion 21 of the body B via a pipe band 91, and a pipe joint is attached to the auxiliary outer pipe. The outer pipe 9 drawn into the bathtub may be connected via the above.

After connecting the outer pipe 9 to the body B in this way, the body B is arranged together with the outer pipe 9 outside the bathtub through the mounting hole H. At this time, the body B is temporarily held outside the bathtub using an appropriate jig.

Next, using a screwdriver or the like, the locking claw 17 of the body B is opened from the inside of the bathtub through the mounting hole H.

Subsequently, the flange member 3 is arranged at the position of the mounting hole H inside the bathtub wall W, and the adapter body 5 has its pipe portions 55 and 55 passed through the pipe portion insertion hole 31 of the flange member 3 to the front surface of the substrate of the body B. It is inserted into the front ends of the pipelines 12a and 12b on the side, and in that state, it is screwed into the threaded holes 16 and 16 of the body B through the screw insertion holes 32 of the flange member 3 through the screws 4 and 4 from the front side of the adapter body 5. I will go. As a result, the body B is pulled toward the front side (outer surface of the bathtub wall), and the locking claw 17 of the body B is pressed against the peripheral edge of the mounting hole on the outer surface of the bathtub wall. The outer peripheral edge portion is pressed against the mounting hole peripheral edge portion on the inner surface of the bathtub wall via the outer peripheral edge portion of the flange member 3. In this way, the body B and the adapter body 5 are fixed to the bathtub wall W by sandwiching the peripheral portion of the mounting hole of the bathtub wall W from inside and outside. As a result, the hot water supply port adapter A of the present embodiment is assembled to the bathtub wall W, and the replacement work (assembly work) of the hot water supply port adapter is completed.

Even when it is not possible to work around the mounting hole on the outside (back side) of the bathtub in this way, the old adapter can be removed and the new hot water supply port adapter A can be securely assembled.

In the above embodiment, almost the entire area of the one-side pipeline 13a of the body body 1 is formed in the first section R1, and the almost entire area of the other side pipeline 13b is formed in the third section R3. In the present invention, at least the rear side portion of the one side pipeline 13a is formed in the first division R1, and at least the rear side portion of the other side pipeline 13b is formed in the third division R3. Just do it. That is, if the rear side portions of both pipelines 13a and 13b are formed in the first and third divisions R1 and R3, the front side portions of both pipelines 13a and 13b may be arranged at any position, for example, both. The front end openings of the pipelines 13a and 13b may be arranged side by side at an intermediate position in the vertical direction on the front surface of the body body 1, or may be arranged vertically at an intermediate position in the horizontal direction.

Further, in the above embodiment, when the body body 1 is divided into four sections, the body body 1 is divided by line segments in the vertical direction (vertical direction) and the horizontal direction (horizontal direction) in the front view, but the present invention is limited to that. However, in the present invention, the body body 1 may be divided by a line segment that is inclined in the vertical direction or the horizontal direction. For example, taking the clock face as an example, the range from 10:30 to 1:30 is the first division, and the range from 1:30 to 4:30 is the second division from 4:30. The range up to 7:30 may be divided into the third category, and the range from 7:30 to 10:30 may be divided into the fourth category.

Further, in the above embodiment, the rear end of the other side pipeline forming portion 12b (the other side pipeline 13b) is arranged behind the rear end of the one side pipeline forming portion 12a (one side pipeline 13a). However, the present invention is not limited to this, and in the present invention, the rear end of the one side pipeline forming portion (one side pipeline) is arranged behind the rear end of the other side pipeline forming portion (the other side pipeline). You may do so.

Further, in the above embodiment, the insertion connecting portion 25 is formed in the pipe joint 2, and the insertion connecting portion 25 is inserted into the joint receiving ports 14a and 14b of the body body 1, but the present invention is not limited to this. In the present invention, the peripheral portions of the joint receiving ports 14a and 14b of the body body 1 are projected to form a plug-in connecting portion, and the plug-in connecting portion on the body body 1 side is connected to the connecting port 26 of the pipe joint 2. It may be connected rotatably.

Further, in the above embodiment, the body B is formed in a size and shape that can be inserted into the mounting hole H of the bathtub wall W, but the present invention is not limited to this, and in the present invention, the body B cannot be inserted into the mounting hole H. It may be formed into a shape.

Further, in the above embodiment, the case where the hot water supply port adapter A of the present invention is used when replacing the hot water supply port adapter has been described as an example, but the present invention is not limited to this, and the hot water supply port adapter of the present invention may be used at the time of new construction or It can also be applied when a hot water supply port adapter is newly attached to the bathtub wall where the adapter is not attached, such as when remodeling the entire bathtub.

Further, in the above embodiment, the body B and the adapter body 5 are fixed to the bathtub wall W via the screw 4, but in the present invention, the body B and the adapter body 5 are fixed to the bathtub wall W. Is not particularly limited, and any fixing means may be used. For example, the flange member 3 and the body B may be fixed by being pressed against the vicinity of the mounting hole of the bathtub wall W from inside and outside by screwing, and the adapter body 5 may be fixed to the fixed flange member 3 by screwing. ..

The hot water supply port adapter of the present invention can be used as a circulation metal fitting or the like that is assembled to the bathtub wall in a penetrating state.

1: Body body 13a, 13b: Pipeline 14a, 14b: Joint socket 2: Pipe joint 21: Outer pipe connection 26: Connection port 3: Flange member 5: Adapter body A: Hot water supply port Adapter B: Body H: Mounting Holes R1 to R4: 1st to 4th divisions W: Bathtub wall

Claims (4)

A body arranged on the outside of the bathtub in the mounting hole of the bathtub wall, and an adapter body having a rear part inserted into the mounting hole from the inside of the bathtub and connected to the body with the front part arranged inside the bathtub are provided. The body includes a body body having one-sided and other-side pipelines arranged so as to extend rearward, and two pipe joints attached to the body body corresponding to the one-sided and the other-side pipelines, respectively. It is a hot water supply port adapter equipped
When the body body is divided into four sections 1 to 4 arranged side by side along the circumferential direction in the front view, the rear side portion of the one-sided pipeline is arranged in the first section. At the same time, the rear side portion of the other side pipeline is arranged in the third section.
The rear end position of the one-sided pipeline is located anterior or posterior to the rear-end position of the other-sided pipeline.
The joint receiving port communicating with the rear end of the one side pipeline is opened in the direction from the first section toward the second section, and the joint receiving port communicating with the rear end of the other side pipeline is the first. It is opened in the direction from the 3rd division to the 4th division.
The pipe joint is provided on the base end side of the outer pipe connecting portion for connecting the outer pipe and the outer pipe connecting portion, and is opened in a direction orthogonal to the axis of the outer pipe connecting portion. And with
A hot water supply port adapter characterized in that the connecting port of the pipe joint is rotatably attached to the joint receiving port of the one side and the other side pipeline around the opening axis of each other. The hot water supply port adapter according to claim 1, wherein the body is configured to be inserted into a mounting hole of a bathtub wall. The hot water supply port adapter according to claim 1 or 2, wherein the front end openings of the one-sided and the other-side pipelines are arranged at point-symmetrical positions on the front surface of the body body. A method of attaching a hot water supply port adapter in which the hot water supply port adapter according to claim 2 is attached to a mounting hole of a bathtub wall.
The process of connecting the lead-in end of the outer pipe drawn from the outside of the bathtub to the inside of the bathtub through the mounting hole to the outer pipe connection portion of the body.
The process of passing the body to which the outer pipe is connected through the mounting hole and arranging it on the outside of the bathtub,
With connecting rear portion of the adapter body to the insert into the mounting hole body, mounting method of the hot water supply port adapter which comprises a step of placing the front portion of the adapter body in a bath inside.

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