JP2010096463A - Circulation adapter fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize a fixture while allowing mounting work by a single worker. <P>SOLUTION: Since a detachable member 4 capable of passing through a through-hole H is detachably provided on a body member 2 of the mounting 1, and a securing part 22 secured to a through-hole H rim of a bathtub side wall W is provided, the detachable member 4 can be formed independent of the body member 2, and miniaturization of the mounting 1 can be made possible. Since a hole part 9 is provided piercing the body member 2, the detachable member 4 is configured such that it can be inserted through the hole part 9, and a loosening prevention part 20 preventing loosening from the hole part 9 is provided, attachment and detachment of the detachable member 4 can be easily carried out by insertion and withdrawing operation, and co-rotation of a pipe joint 33 can be prevented by inserting a tool such as a driver into the hole part 9 during fastening of a casing 35. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a circulation adapter fitting used by being attached to a bathtub, and more particularly, to a circulation adapter fitting that allows an operator to carry out the work alone.

  In general, the circulation adapter is disposed on the outer surface of the through-hole formed in the bathtub side wall, and is connected to a pipe joint to a heat supply device installed outdoors or the like from the inside of the bathtub side wall through the through-hole. And a casing member that is fastened to the pipe joint.

  In the step of attaching the circulation adapter to the bathtub, (1) an operator outside the bathtub contacts and fixes the through hole formed in the bathtub side wall in a state where the position of the pipe joint is adjusted. (2) In this state, an operator inside the bathtub inserts the cylindrical outer casing into the through-hole, and then screwed into the pipe joint to sandwich the outer casing and the pipe joint between the bathtub side walls. Fix in a watertight state. (3) Next, after fixing the cylindrical inner casing to the outer casing with screws, the filter member is finally attached to the front surface of the inner casing.

  In addition, a technique has been proposed in which a single worker can attach the circulation adapter to the bathtub by using a fixture that is a construction jig. Japanese Patent Application Laid-Open No. H10-228667 discloses a fixture that includes an inner cylinder portion formed in a pipe joint, and an insertion portion that can be fitted into the inner cylinder portion, a body portion, and a latching portion that protrudes to the periphery of the body portion. is suggesting.

  In Patent Document 1, after inserting the pipe joint and the fixture integrated by fitting from the through-hole, the fixture can be temporarily locked to the edge of the through-hole of the bathtub side wall by the latching portion. Can move into the bathtub and continue the work.

  Further, Patent Document 2 has a configuration substantially similar to that of Patent Document 1, and provides a mark of the upper position on the fixture and forms a non-circular cross section on the bottom surface of the pipe joint, thereby We have proposed a technology that enables alignment and prevents the outer casing from co-rotating when the inner casing is fastened and fixed.

Japanese Patent Application Laid-Open No. 8-261666 JP 2007-57223 A

  Since there are operations inside and outside the bathtub in the process of attaching the circulation adapter to the bathtub, in order for the operator to perform the installation work alone, the fitting connected to the pipe joint is temporarily attached to the through-hole edge of the bathtub side wall. Locking, so-called temporary placement is required. For this reason, both said patent documents form the latching | locking part which served as the holding part of an operator.

  In order to fix the cylindrical inner casing to the outer casing by screws, the following two fastening methods are conceivable. One is a method of inserting the fixture into the internal housing before fitting and connecting the fixture and the pipe joint. In this method, an operator who sends out the fitting inserted through the internal housing from the inside of the bathtub through the through-hole is required, and the work by a single operator is difficult.

  The other is, as proposed in the above-mentioned patent documents, once the fitting connected to the pipe joint is locked to the edge of the through-hole of the bathtub side wall, and then the latching part is passed through the internal housing inside the bathtub. Is the method. According to this method, the operator can grasp the latching portion to be locked and insert it into the internal housing, and can work alone.

  However, when the latching portion is inserted into the internal housing, the internal housing must have a sufficient opening through which the latching portion can pass, and the internal housing is enlarged, that is, the circulation in which the fixture can be used. There is a problem that the adapter is limited. Although it is possible to reduce the size of the latching part by making the body part thinner, there are situations in which an operator grips the latching part and supports the pipe joint during installation work. Miniaturization is difficult due to rigidity.

  An object of the present invention is to reduce the size of a fixture while allowing an installation operation by a single operator.

  The invention according to claim 1 is a circulation adapter mounting tool for attaching a circulation adapter having a pipe joint formed with a recessed portion to the outside of the bathtub side wall and can be inserted into the recessed portion. A main body member, and a removable member that can be attached to and detached from the main body member and that can pass through the through-hole, and the removable member is attached to the main body member, It has the latching | locking part which latches the main body member inserted in the piping joint to the penetration opening edge part of the said bathtub side wall.

  In the first aspect of the present invention, a detachable member that can pass through the through hole is provided, and the detachable member is detachably attached to the main body member and the main body member inserted into the pipe joint is locked to the through hole edge of the bathtub side wall. be able to.

  According to a second aspect of the present invention, in the first aspect of the present invention, the main body member has a hole that passes through the main body member, and the detachable member is configured to be inserted into the hole, and the hole It is characterized by having a retaining part that prevents the part from falling off.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the main body member has a direction display portion that indicates a mounting direction of the pipe joint.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the circulation adapter has a second threaded portion on a cylindrical outer peripheral surface and is formed on the inner peripheral surface of the concave portion. A fastening member that has a housing that is mounted on the side wall of the bathtub by screwing one screw portion and the second screw portion, and that can be connected to the housing and fastens the housing to the pipe joint. The fastening member includes a connecting portion connectable to the housing, and a cylindrical portion in which the main body member can be inserted and rotated in a connected state with the housing. And

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the pipe joint has a plurality of protrusions protruding from the bottom surface of the recess toward the recess opening direction. The main body member has a plurality of insertion portions into which the plurality of protrusions can be inserted.

  According to the first aspect of the present invention, there is provided a body member that can be inserted into the recess, and a detachable member that can be attached to and detached from the body member and that can pass through the through-hole while being attached to the body member. The member has a locking portion that locks the main body member inserted into the pipe joint to the through-hole edge of the bathtub side wall when mounted on the main body member, so that an installation work by a single operator is possible. In addition, the size of the fixture can be reduced.

  In other words, the attachment / detachment member that can pass through the through-hole can be attached / detached to / from the main body member of the fixture and has a locking portion that locks to the through-hole edge of the bathtub side wall. Therefore, it is possible to achieve both the worker's single operation and the downsizing of the fixture.

  According to the invention of claim 2, the main body member has a hole portion penetrating the main body member, and the detachable member is configured to be able to be inserted into the hole portion, and is prevented from coming off from the hole portion. Since the stopper is provided, the attachment / detachment member can be attached / detached through insertion / extraction operation into the hole, and the worker's individual work is facilitated.

  According to the invention of claim 3, since the main body member has the direction display portion indicating the mounting direction of the pipe joint, the connection direction can be confirmed and the position thereof can be adjusted in the circulation adapter having the polarity of the return path. .

  According to the invention of claim 4, the circulation adapter has a second screw portion on the outer peripheral surface of the cylindrical shape, and includes a first screw portion and a second screw portion formed on the inner peripheral surface of the recess. The housing has a housing that is attached to the side wall of the bathtub by screwing, and has a fastening member that is connectable to the housing and fastens the housing to the pipe joint. A connecting portion connectable to the casing, and a tubular portion in which the main body member can be inserted and rotated in a state of being connected to the casing. The joint and the housing can be screwed together.

  According to the invention of claim 5, the pipe joint has a plurality of protrusions protruding from the bottom surface of the recess toward the opening direction of the recess, and the main body member can insert the plurality of protrusions, respectively. Since there are a plurality of such insertion portions, when the pipe joint and the housing are screwed and fastened, the pipe joint can be prevented from rotating and the positioning of the pipe joint is ensured.

  Hereinafter, the best mode for carrying out the present invention will be described based on examples.

Based on FIGS. 1-3, the fixture which concerns on a present Example is demonstrated.
1 shows an overall view of the fixture 1, FIG. 2 (a) shows a side view of the main body member 2, FIG. 2 (b) shows a front view of the main body member 2, and FIG. 3 (a) shows a fastening member. 3 is a side view, and FIG. 3B is a rear view of the fastening member 3.

  As shown in FIG. 1, the fixture 1 includes a main body member 2, a fastening member 3, and a detachable member 4. The main body member 2, the fastening member 3, and the detachable member 4 are all formed of a resin having a predetermined rigidity, such as polyacetal or polypropylene.

  As shown in FIGS. 1 and 2, the main body member 2 is configured by a hollow rod-shaped body portion 5 and a connecting portion 6 that is disposed at one end of the body portion 5 and has a larger diameter than the body portion 5 in a front view. Is done. The body part 5 includes a first body part 5a on one end side and a second body part 5b on the other end side. Further, a flat upper surface 7 is formed from the one end on the one end side of the first body part 5a to the rear end on the other end side of the second body part 5b in the region facing upward when installing the circulation adapter.

  The first body portion 5a has a substantially hexagonal cross section with the upper surface 7 as one side. On the other end side of the first body portion 5a, a substantially cylindrical hole portion 9 vertically passing through the first body portion 5a from the upper surface 7 to the lower surface 8 in the other end side region, the upper surface 7, the lower surface 8, and the remaining A plurality of elliptical rib portions 10 (meat stealing portions) formed in the axial direction inward on each of the four surfaces are formed in an axial row. The rib portion 10 can reduce the thickness of the main body member 2, thereby preventing the main body member 2 from being reduced in weight and generating distortion and deformation due to heat shrinkage during molding.

  The second body portion 5b includes an upper surface 7 and an arc-shaped portion 11 having a circular arc cross section. As shown in FIG. 2A, the upper end of the second body portion 5b forms an upper surface 7 flush with the upper end of the first body portion 5a, and the lower end of the arc-shaped portion 11 is the same as that of the first body portion 5a. The upper and lower lengths of the so-called second body portion 5b are formed lower than the lower surface 8, that is, longer than the upper and lower lengths of the first body portion 5a, and the outer shape of the first body portion 5a fits into the outer shape of the second body portion 5b in front view. It is configured as follows. Further, in the region of the upper surface 7 of the second body portion 5b, there is provided a direction indicating portion 12 that urges an operator to pay attention so that the upper surface 7 faces upward when installing the circulation adapter.

  The connecting portion 6 is disposed at the tip of one end side of the body portion 5 on the same axis as the body portion 5 and is formed in a cylindrical shape. The connecting portion 6 includes a hollow cylindrical first insertion portion 13, a hollow cylindrical second insertion portion 14 having a smaller diameter than the first insertion portion 13, and a hollow portion 15. The first insertion portion 13 and the second insertion portion 14 include a hollow portion having a predetermined length into which a later-described intake nozzle 54 and intake portion 57 can be inserted. As shown in FIG. 2b, when installing the circulation adapter, the first insertion portion 13 is positioned at the uppermost position in the front view with the direction indicating portion 12 facing upward, and the second insertion portion 14 is obliquely downward. It is arranged to be located.

  As shown in FIG. 3, the fastening member 3 is formed in a cylindrical portion 16 having a substantially hexagonal cross section on the other end side and an end portion on one end side of the cylindrical portion 16, and projects radially up, down, left and right from the axial center. The connection part 17 is comprised from the cylindrical part 16 and the substantially circular opening 18 which penetrates the connection part 17 to an axial direction. The radius of the opening 18 is set to be greater than or equal to the radius of the arc-shaped portion 11, and when the second body portion 5 b is inserted through the opening 18 of the fastening member 3, the fastening member 3 is in contact with the second body portion 5 b. It can rotate and can move back and forth in the axial direction.

  The connecting portion 17 projecting vertically and horizontally has four holes 19, 19... That pass through the connecting portion 17 every 90 °, and can be connected to a casing 35 of a circulation adapter 30 described later by attaching screws. It has become. The hole 19 is disposed on a circle having the same radius as an opening 35b provided in a flange portion 35a of the casing 35 described later. Moreover, the shape of the cylindrical part 16 is formed so that fastening work is possible with a monkey wrench having a nominal size of 250 mm and a maximum opening of 29 mm, which is usually held by an operator.

  The detachable member 4 has a lower surface 8 when the retaining portion 20 provided at one end having a larger diameter than the hole portion 9, a pin portion 21 having a smaller diameter than the hole portion 9, and the detachable member 4 are inserted into the hole portion 9. And a locking portion 22 that can be locked to the outer edge of the through hole of the bathtub. The detachable member 4 is shorter than the diameter of the through hole of the bathtub, for example, 5 cm, and the length of the pin portion 21 is longer than the thickness of the main body member 2, that is, the distance between the so-called upper surface 7 and lower surface 8.

Next, based on FIGS. 4-7, an example of the circulation adapter which concerns on a present Example is demonstrated.
4 is a front view of the circulation adapter, FIG. 5 is a cross-sectional view taken along line VV in FIG. 4, FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. Indicates.

  The circulation adapter 30 is disposed on the outside of the bathtub side wall, and has a tubular cup joint 33 having a recessed portion 32 having a first threaded portion 31 formed on the inner peripheral surface thereof and a cylindrical shape disposed inside the recessed portion 32. And a housing 35. The housing 35 is installed through the bathtub wall from the inner side of the bathtub side wall, and the first screw portion 31 formed on the inner peripheral surface of the pipe joint 33 and the first outer surface formed on the outer peripheral surface of the housing 35. The two screw portions 34 are configured to be screwable.

  The pipe joint 33 and the housing 35 are provided with annular flange portions 33a and 35a projecting outward from the axial direction on the bathtub side, and the bathtub wall and the flange portions 33a and 35a are formed by the annular packings 36 and 37. Sealing performance is secured. The flange portion 35a of the housing 35 is provided with 16 openings 35b arranged on a circle with a predetermined radius every 22.5 ° with respect to the axis.

  On the inner peripheral side of the housing 35, a switching valve case 39 fixed to the opening 35b by a bolt 38 is disposed. On the surface of the switching valve case 39, a bubble jet outlet 40 that opens in a horizontal direction and an unillustrated surface are provided. A suction port is provided, and a side hole-shaped memorial jet spout 41, which will be described later, is formed in the tank bottom direction. An outer cover member 42 is attached to the bathtub-side surface portion of the circulation adapter 30 so as to cover the flange portion 35 a of the housing 35 and the switching valve case 39.

  Three port portions of a suction pipe 43, a discharge pipe 44, and an intake pipe 45 are formed in the end wall portion 33b of the pipe joint 33. The suction pipe 43 is connected to a water heater (not shown), and the discharge pipe 44 is Each is connected to the return route. The intake pipe 45 is connected to an intake unit (not shown) having a filter, an orifice, a check valve and the like via an intake pipe.

  The switching valve case 39 includes an outer cylinder portion 46 that fits on the inner peripheral surface of the casing 35, and an inner cylinder portion 47 that forms a plurality of functional spaces in cooperation with the outer cylinder portion 46. That is, the outer cylinder portion 46 and the inner cylinder portion 47 have a small diameter in the switching valve case 39 as compared with the columnar swirl chamber 48 and the swirl chamber 48 in which the bubble jet nozzle 40 is provided, and a suction port is provided. The suction chamber 53, which is arranged in parallel with the swirl chamber 48 and connected by the communication passage 50, and is arranged in parallel with the swirl reserve chamber 51 and the memorial jet outlet 41, as will be described later. There are five functional spaces of a suction chamber 53 arranged in series on the side opposite to the bathtub with respect to the supply chamber 52 and the swirl reserve chamber 51 and the supply chamber 52 that can communicate with each other.

  In the swirl chamber 48, an intake nozzle 54 having a conical shape at the bathtub-side end extends from the bottom surface of the recess 32 of the pipe joint 33. An intake hole 55 communicating with the intake pipe 45 is provided inside the intake nozzle 54, and the air introduced from the intake hole 55 is directed toward a communication passage opening 56 provided in the central portion in the longitudinal direction of the swirl chamber 48. Configured to supply.

  As shown in FIG. 6, the communication passage 50 communicates with the columnar swirl chamber 48 so that the connection direction is a tangential direction. With this configuration, hot water introduced from the swirl preliminary chamber 51 swirls at a high speed along the inner peripheral shape of the swirl chamber 48, which is suitable for air suction, bubble miniaturization, generation of ultrasonic waves of a predetermined frequency, and the like. Swivel rotation speed can be obtained. The swirl preliminary chamber 51 is provided with a check valve (not shown) on the upstream side of the communication passage opening 56 and has a so-called pipe connection polarity that allows only hot water flow from the suction chamber 53.

  As shown in FIG. 7, the suction pipe 43 extends from the bottom surface of the recess 32 while being reduced in diameter to the suction chamber 49, and the tip of the suction pipe 43 has the same diameter as the suction chamber 49 inside the suction chamber 49. While being press-fitted, a suction portion 57 having a smaller diameter than the suction nozzle 54 is provided. That is, the suction nozzle 54 and the suction portion 57 installed at the tip of the suction pipe 43 protrude from the bottom surface of the concave portion 32 of the pipe joint 33. With the circulation adapter 30 installed, the suction nozzle 54 is viewed from the front. And the suction part 57 is arranged so as to be located obliquely below. The intake nozzle 54 and the intake portion 57 correspond to an example of the protruding portion of the present invention.

  As shown in FIGS. 5 and 6, the switching valve case 39 penetrates the inner cylinder portion 47 and switches the outlet of the hot water to a bubble jet outlet 40 and a memorial jet outlet 41. A member 58 is provided. The spout switching member 58 is attached to a valve shaft 60 that is slidably supported by a receiving portion 59 formed in the inner cylinder portion 47 at the center portion, and a countertub-side end portion that is one end side of the valve shaft 60. The first switching valve 61, the first switching valve 61, and a second switching valve 62 installed on the other end side with the receiving portion 59 interposed therebetween.

  A bias spring 65 is disposed between the first receiving seat 63 provided in the receiving portion 59 and the first support portion 64 of the valve shaft 60, and is fixed to the second support portion 66 and the inner cylinder portion 47 of the valve shaft 60. A shape memory alloy spring 68 is disposed between the second seat 67 and the second seat 67. The tension between the bias spring 65 and the shape memory alloy spring 68 is balanced, and the position of the ejection port switching member 58 is configured not to change unless the tension of the shape memory alloy spring 68 changes.

  The positional relationship between the first switching valve 61 and the second switching valve 62 is such that when the second switching valve 62 closes the supply chamber 52, the first switching valve 61 opens, and conversely, the first switching valve 61 The second switching valve 62 is configured to open when 61 is closing the swivel reserve chamber 51.

  The manual operation member 69 is connected to the end portion on the bathtub side of the valve shaft 60. When the manual operation member 69 is manually operated to the right end portion position, the second switching valve 62 closes the valve shaft 60 and the first operation valve 69 is closed. When the switching valve 61 is in the open position and is manually operated to the left end position, the valve shaft 60 is set so that the second switching valve 62 is opened and the first switching valve 61 is closed. ing.

  Next, based on FIGS. 8-11, the work procedure in the case of attaching the circulation adapter 30 mentioned above to the bathtub side wall W using the fixture 1 is demonstrated.

(Procedure 1)
First, as shown in FIG. 8, outside the bathtub side wall W, the suction nozzle 54 and the suction portion 57 that protrude from the bottom surface of the recess 32 of the pipe joint 33 are connected to the first insertion portion 13 and the second insertion portion 14 of the connection portion 6. The main body member 2 and the pipe joint 33 are integrated. The first insertion portion 13 and the second insertion portion 14 have a predetermined length, and the intake nozzle 54, the first insertion portion 13, the suction portion 57, and the second insertion portion 14 are fitted in close contact. For this reason, even if the operator grips the body portion 5 and tilts and disposes the main body member 2, the pipe joint 33 is not dropped from the main body member 2.

(Procedure 2)
Next, as shown in FIG. 9, the operator inserts the detachable member 4 into the hole 9. When the detachable member 4 is inserted, the lower end of the retaining portion 20 is brought into contact with the upper surface 7 of the body portion 5 and the locking portion 22 is sufficiently protruded from the lower surface 8. After inserting the detachable member 4 into the main body member 2, the operator inserts the second body part 5 b on the other end side of the main body member 2 integrated with the pipe joint 33 into the through-hole H of the bathtub side wall W, and detaches it. Push until the member 4 is inside the bathtub sidewall W. Since the entire length of the detachable member 4 is shorter than the diameter of the through hole H, it can pass through the through hole H.

  When the detachable member 4 passes through the through-hole H and enters the inside of the bathtub side wall W, the insertion is stopped, and the locking portion 22 of the detachable member 4 is temporarily locked to the edge of the through-hole H. Although the pipe joint 33 integrated with the main body member 2 is inclined, the pipe joint is fitted with the intake nozzle 54 and the first insertion part 13 and the suction part 57 and the second insertion part 14. 33 does not fall off.

  The operator moves to the inside of the bathtub side wall W while the pipe joint 33 integrated with the main body member 2 is once locked to the edge of the through-hole H. The operator grips the second body portion 5b and draws the flange portion 33a of the pipe joint 33 so as to come into contact with the bathtub side wall W around the through-hole H, and the upper surface based on the retaining portion 20 and the direction indication portion 12. The position is adjusted so that 7 faces upward. Since the upper surface 7 faces upward, the bubble jet outlet 40 can be disposed at the uppermost part of the circulation adapter 30, and further, erroneous pipe connection to the suction pipe 43 and the discharge pipe 44 can be prevented.

(Procedure 3)
Thereafter, as shown in FIG. 10, the detachable member 4 is pulled out from the hole 9, the housing 35 is inserted from the other end of the second body 5b, and the first threaded portion 31 of the pipe joint 33 and the housing are inserted. The second screw portion 34 of the body 35 is screwed. Since the engaging portion 22 of the fixture 1 is a separate member that can be attached and detached, the second body portion 5b can be inserted even in a small casing 35. For convenience of explanation, FIGS. 10 and 11 show the bathtub side wall W and the through hole H omitted.

  When the first screw portion 31 and the second screw portion 34 are screwed together, a tool such as a screwdriver can be inserted into the hole 9 to prevent the body member 2 from rotating together. Moreover, since the axial centers of the intake nozzle 54, the suction portion 57, and the pipe joint 33 are different from each other, the rotation of the pipe joint 33 can be prevented by fixing the main body member 2.

(Procedure 4)
When the casing 35 is screwed to the pipe joint 33 to some extent, the fastening member 3 is connected to the casing 35. In a state where the connecting portion 17 of the fastening member 3 is opposed to the housing 35, the other end side end portion of the second body portion 5 b is moved so as to pass through the opening 18. The radius of the opening 18 is set to be greater than or equal to the radius of the arcuate portion 11, and the outer shape of the first body portion 5a is configured to fit within the outer shape of the second body portion 5b in a front view. 3 can proceed until it contacts the flange portion 35a of the housing 35.

  After the connecting portion 17 of the fastening member 3 and the flange portion 35a of the housing 35 come into contact with each other, the hole 19 of the connecting portion 17 and the opening 35b of the flange portion 35a are aligned as shown in FIG. The fastening member 3 and the casing 35 are connected by the two screws 70. The four holes 19, 19... Are arranged every 90 °, and the plurality of openings 35 b are installed at 16 locations every 22.5 ° with respect to the axis, so that the four holes 19, 19. It is possible to make it coincide with the opening 35b.

  After the fastening member 3 and the casing 35 are connected, the tubular portion 16 having a substantially hexagonal cross section is fastened to the pipe joint 33 with a monkey wrench or the like until a specified torque is obtained. In order to prevent co-rotation of the pipe joint 33, a tool such as a screwdriver can be inserted into the hole 9 and fixed. After the tightening is completed, the screw 70, the fastening member 3, and the main body member 2 are removed, and the attachment of the pipe joint 33 and the housing 35 to the bathtub side wall W is completed. Thereafter, the switching valve case 39 and the outer cover member 42 are mounted.

Next, the function and effect of the fixture 1 will be described.
Since the detachable member 4 that can pass through the through-hole H can be attached to and detached from the main body member 2 of the fixture 1 and has the locking portion 22 that is locked to the edge of the through-hole H of the bathtub side wall W, the detachable member 4 is It can be formed independently of the main body member 2 and can be attached by a single operator, and the fixture 1 can be downsized.

  Moreover, since it has the hole part 9 which penetrates the main body member 2, and the attachment / detachment member 4 is configured to be able to be inserted into the hole part 9 and has a retaining part 20 for preventing the dropout from the hole part 9, the attachment / detachment member 4 is provided. Can be easily attached and detached by inserting and pulling out the hole 9, and the operator can easily perform the single operation. In addition, when the casing 35 is tightened, a tool such as a screwdriver is inserted through the hole 9 so that the joint joint 33 can be prevented from rotating together.

  Since the direction display part 12 which shows the attachment direction of the piping joint 33 is provided in the upper surface 7 of the main body member 2, in the circulation adapter 30 which has the polarity of an outward path return, the connection direction can be confirmed and the position adjustment can be performed.

  A fastening member 3 that can be connected to the housing 35 is provided, and the fastening member 3 includes a connecting portion 17 that can be connected to the housing 35 and a cylindrical portion 16 through which the main body member 2 can be inserted and rotated. Therefore, the pipe joint 33 and the housing 35 can be screwed and fastened with the pipe joint 33 supported by the fixture 1.

  Since it has the 1st insertion part 13 and the 2nd insertion part 14 which can be inserted in the suction nozzle 54 and the suction part 57 which protrude from the recessed part 32 bottom of the pipe joint 33, respectively, the pipe joint 33 and the housing | casing 35 are screwed together. In fastening, the circulation of the pipe joint 33 can be prevented.

Next, a modification in which the above embodiment is partially changed will be described.
1) In the above-described embodiment, the example in which the direction display portion 12 is installed separately from the hole portion 9 has been described. However, those that also serve as the hole portion 9 can be applied to the fixture of the present invention.

2] In the above-described embodiment, the example of the pin-shaped detachable member 4 has been described. However, a wedge-shaped member having a rectangular cross section may be applied to the fixture of the present invention.

3) In addition, those skilled in the art can implement the present invention by adding various modifications to the embodiments without departing from the spirit of the present invention, and the present invention includes such modifications. is there.

1 is an overall view of a fixture according to an embodiment of the present invention. FIG. 2A is a side view and FIG. 2B is a front view of a main body member of a fixture according to the present embodiment. FIG. 3A is a side view and FIG. 3B is a front view of a fastening member of a fixture according to the present embodiment. It is a front view of the circulation adapter which concerns on a present Example. It is a figure which shows the VV sectional view in FIG. It is a figure which shows the VI-VI line cross section in FIG. It is a figure which shows the pipe joint part of the VII-VII line cross section in FIG. It is explanatory drawing of the procedure 1 which concerns on the attachment operation | work of a circulation adapter. It is explanatory drawing of the procedure 2 which concerns on the attachment operation | work of a circulation adapter. It is explanatory drawing of the procedure 3 which concerns on the attachment operation | work of a circulation adapter. It is explanatory drawing of the procedure 4 which concerns on the attachment operation | work of a circulation adapter.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Attachment 2 Main body member 3 Fastening member 4 Detachable member 9 Hole part 12 Direction instruction | indication part 13 1st insertion part 14 2nd insertion part 16 Cylindrical part 17 Connection part 18 Opening 22 Locking part 30 Circulation adapter 31 1st thread part 32 Concave portion 33 Piping joint 34 Second screw portion 35 Housing 54 Intake nozzle 57 Intake portion W Bathtub side wall H Through port

Claims (5)

In the circulation adapter fitting for attaching the circulation adapter having the piping joint formed on the outside of the bathtub side wall and having the recess formed therein to the through-hole of the bathtub side wall,
A body member insertable into the recess,
With this body member being detachable and attached to the body member, it has a detachable member that can pass through the through hole,
This attachment / detachment member has a locking part for locking the main body member inserted into the pipe joint to the through-hole edge of the bathtub side wall while being attached to the main body member. . The main body member has a hole passing through the main body member,
The circulation adapter fitting according to claim 1, wherein the detachable member is configured to be able to be inserted into the hole, and has a retaining portion that prevents the detachable member from falling off the hole.   The circulation adapter mounting tool according to claim 1, wherein the main body member has a direction display portion that indicates a mounting direction of the pipe joint. The circulation adapter has a second screw portion on a cylindrical outer peripheral surface, and is attached to the bathtub side wall by screwing the first screw portion and the second screw portion formed on the inner peripheral surface of the recess. Having a housing,
It can be connected to the housing, and has a fastening member for fastening the housing to the pipe joint,
The fastening member includes a connecting portion connectable to the housing, and a tubular portion through which the main body member can be inserted and rotated while being connected to the housing. Item 4. The circulating adapter fixture according to any one of Items 1 to 3. The pipe joint has a plurality of protrusions protruding from the bottom surface of the recess toward the opening direction of the recess,
The circulation adapter fitting according to claim 1, wherein the main body member has a plurality of insertion portions into which the plurality of protrusions can be inserted.